From d568df84f987a9321c1f5826a6c8678ef2bb2b70 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Wed, 12 Jul 2006 01:47:00 -0400 Subject: [PATCH 001/488] ACPI: handle firmware_register init errors Signed-off-by: Randy Dunlap Signed-off-by: Len Brown --- drivers/acpi/bus.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index b2977695e120..7b77ee146a80 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -25,6 +25,7 @@ #include #include #include +#include #include #include #include @@ -738,7 +739,10 @@ static int __init acpi_init(void) return -ENODEV; } - firmware_register(&acpi_subsys); + result = firmware_register(&acpi_subsys); + if (result < 0) + printk(KERN_WARNING "%s: firmware_register error: %d\n", + __FUNCTION__, result); result = acpi_bus_init(); From 9b6d97b64eff08b368375efcf9c1d01eba582ea2 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Wed, 12 Jul 2006 02:08:00 -0400 Subject: [PATCH 002/488] ACPI: scan: handle kset/kobject errors Check and handle kset_register() and kobject_register() init errors. Signed-off-by: Randy Dunlap Signed-off-by: Len Brown --- drivers/acpi/scan.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 5fcb50c7b778..698a1540e303 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -4,6 +4,7 @@ #include #include +#include #include #include @@ -113,6 +114,8 @@ static struct kset acpi_namespace_kset = { static void acpi_device_register(struct acpi_device *device, struct acpi_device *parent) { + int err; + /* * Linkage * ------- @@ -138,7 +141,10 @@ static void acpi_device_register(struct acpi_device *device, device->kobj.parent = &parent->kobj; device->kobj.ktype = &ktype_acpi_ns; device->kobj.kset = &acpi_namespace_kset; - kobject_register(&device->kobj); + err = kobject_register(&device->kobj); + if (err < 0) + printk(KERN_WARNING "%s: kobject_register error: %d\n", + __FUNCTION__, err); create_sysfs_device_files(device); } @@ -1450,7 +1456,9 @@ static int __init acpi_scan_init(void) if (acpi_disabled) return 0; - kset_register(&acpi_namespace_kset); + result = kset_register(&acpi_namespace_kset); + if (result < 0) + printk(KERN_ERR PREFIX "kset_register error: %d\n", result); result = bus_register(&acpi_bus_type); if (result) { From 9805cb76f7bcd3108e012270d9ef2fd8ea3bea55 Mon Sep 17 00:00:00 2001 From: Len Brown Date: Tue, 25 Jul 2006 13:30:57 -0400 Subject: [PATCH 003/488] ACPI: restore some dmesg to DEBUG-only, ala 2.6.17 The ACPI_EXCEPTION() patch enabled a bunch of messages to print even in the non-DEBUG kernel. Need to change a couple back, and note that ACPI_EXCEPTION takes no \n, but ACPI_DEBUG_PRINT does. No context for object [%p]\n Device `[%s]' is not power manageable\n Signed-off-by: Len Brown --- drivers/acpi/bus.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index 7b77ee146a80..279c4bac92e5 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -69,7 +69,8 @@ int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device) status = acpi_get_data(handle, acpi_bus_data_handler, (void **)device); if (ACPI_FAILURE(status) || !*device) { - ACPI_EXCEPTION((AE_INFO, status, "No context for object [%p]", handle)); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No context for object [%p]\n", + handle)); return -ENODEV; } @@ -193,7 +194,7 @@ int acpi_bus_set_power(acpi_handle handle, int state) /* Make sure this is a valid target state */ if (!device->flags.power_manageable) { - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device `[%s]' is not power manageable", + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device `[%s]' is not power manageable\n", device->kobj.name)); return -ENODEV; } From 16a74744231e57e354253567490ab9e4ccd2d605 Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Wed, 5 Apr 2006 08:47:00 -0400 Subject: [PATCH 004/488] PCI: quirk to disable e100 interrupt if RESET failed to Without this quirk, e100 can be pulling on a shared interrupt line when another device (eg. USB) loads, causing the interrupt to scream and get disabled. http://bugzilla.kernel.org/show_bug.cgi?id=5918 Signed-off-by: Bjorn Helgaas Signed-off-by: Len Brown --- drivers/pci/quirks.c | 57 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 57 insertions(+) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index e3c78c39b7e4..5ca1e94887be 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -1511,6 +1511,63 @@ static void __devinit quirk_netmos(struct pci_dev *dev) } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETMOS, PCI_ANY_ID, quirk_netmos); +static void __devinit quirk_e100_interrupt(struct pci_dev *dev) +{ + u16 command; + u32 bar; + u8 __iomem *csr; + u8 cmd_hi; + + switch (dev->device) { + /* PCI IDs taken from drivers/net/e100.c */ + case 0x1029: + case 0x1030 ... 0x1034: + case 0x1038 ... 0x103E: + case 0x1050 ... 0x1057: + case 0x1059: + case 0x1064 ... 0x106B: + case 0x1091 ... 0x1095: + case 0x1209: + case 0x1229: + case 0x2449: + case 0x2459: + case 0x245D: + case 0x27DC: + break; + default: + return; + } + + /* + * Some firmware hands off the e100 with interrupts enabled, + * which can cause a flood of interrupts if packets are + * received before the driver attaches to the device. So + * disable all e100 interrupts here. The driver will + * re-enable them when it's ready. + */ + pci_read_config_word(dev, PCI_COMMAND, &command); + pci_read_config_dword(dev, PCI_BASE_ADDRESS_0, &bar); + + if (!(command & PCI_COMMAND_MEMORY) || !bar) + return; + + csr = ioremap(bar, 8); + if (!csr) { + printk(KERN_WARNING "PCI: Can't map %s e100 registers\n", + pci_name(dev)); + return; + } + + cmd_hi = readb(csr + 3); + if (cmd_hi == 0) { + printk(KERN_WARNING "PCI: Firmware left %s e100 interrupts " + "enabled, disabling\n", pci_name(dev)); + writeb(1, csr + 3); + } + + iounmap(csr); +} +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, quirk_e100_interrupt); static void __devinit fixup_rev1_53c810(struct pci_dev* dev) { From 115ff50bade0f93a288677745a5884def6cbf9b1 Mon Sep 17 00:00:00 2001 From: Dave Kleikamp Date: Wed, 26 Jul 2006 14:52:13 -0500 Subject: [PATCH 005/488] JFS: Quota support broken, no quota_read and quota_write jfs_quota_read/write are very near duplicates of ext2_quota_read/write. Cleaned up jfs_get_block as long as I had to change it to be non-static. Signed-off-by: Dave Kleikamp --- fs/jfs/inode.c | 16 ++----- fs/jfs/jfs_inode.h | 1 + fs/jfs/super.c | 117 +++++++++++++++++++++++++++++++++++++++++++-- 3 files changed, 119 insertions(+), 15 deletions(-) diff --git a/fs/jfs/inode.c b/fs/jfs/inode.c index 43e3f566aad6..a223cf4faa9b 100644 --- a/fs/jfs/inode.c +++ b/fs/jfs/inode.c @@ -168,16 +168,15 @@ void jfs_dirty_inode(struct inode *inode) set_cflag(COMMIT_Dirty, inode); } -static int -jfs_get_blocks(struct inode *ip, sector_t lblock, unsigned long max_blocks, - struct buffer_head *bh_result, int create) +int jfs_get_block(struct inode *ip, sector_t lblock, + struct buffer_head *bh_result, int create) { s64 lblock64 = lblock; int rc = 0; xad_t xad; s64 xaddr; int xflag; - s32 xlen = max_blocks; + s32 xlen = bh_result->b_size >> ip->i_blkbits; /* * Take appropriate lock on inode @@ -188,7 +187,7 @@ jfs_get_blocks(struct inode *ip, sector_t lblock, unsigned long max_blocks, IREAD_LOCK(ip); if (((lblock64 << ip->i_sb->s_blocksize_bits) < ip->i_size) && - (!xtLookup(ip, lblock64, max_blocks, &xflag, &xaddr, &xlen, 0)) && + (!xtLookup(ip, lblock64, xlen, &xflag, &xaddr, &xlen, 0)) && xaddr) { if (xflag & XAD_NOTRECORDED) { if (!create) @@ -255,13 +254,6 @@ jfs_get_blocks(struct inode *ip, sector_t lblock, unsigned long max_blocks, return rc; } -static int jfs_get_block(struct inode *ip, sector_t lblock, - struct buffer_head *bh_result, int create) -{ - return jfs_get_blocks(ip, lblock, bh_result->b_size >> ip->i_blkbits, - bh_result, create); -} - static int jfs_writepage(struct page *page, struct writeback_control *wbc) { return nobh_writepage(page, jfs_get_block, wbc); diff --git a/fs/jfs/jfs_inode.h b/fs/jfs/jfs_inode.h index b5c7da6190dc..1fc48df670c8 100644 --- a/fs/jfs/jfs_inode.h +++ b/fs/jfs/jfs_inode.h @@ -32,6 +32,7 @@ extern void jfs_truncate_nolock(struct inode *, loff_t); extern void jfs_free_zero_link(struct inode *); extern struct dentry *jfs_get_parent(struct dentry *dentry); extern void jfs_set_inode_flags(struct inode *); +extern int jfs_get_block(struct inode *, sector_t, struct buffer_head *, int); extern const struct address_space_operations jfs_aops; extern struct inode_operations jfs_dir_inode_operations; diff --git a/fs/jfs/super.c b/fs/jfs/super.c index 4f6cfebc82db..90ee0de829c1 100644 --- a/fs/jfs/super.c +++ b/fs/jfs/super.c @@ -26,6 +26,7 @@ #include #include #include +#include #include #include @@ -298,7 +299,7 @@ static int parse_options(char *options, struct super_block *sb, s64 *newLVSize, break; } -#if defined(CONFIG_QUOTA) +#ifdef CONFIG_QUOTA case Opt_quota: case Opt_usrquota: *flag |= JFS_USRQUOTA; @@ -597,7 +598,7 @@ static int jfs_show_options(struct seq_file *seq, struct vfsmount *vfs) if (sbi->flag & JFS_NOINTEGRITY) seq_puts(seq, ",nointegrity"); -#if defined(CONFIG_QUOTA) +#ifdef CONFIG_QUOTA if (sbi->flag & JFS_USRQUOTA) seq_puts(seq, ",usrquota"); @@ -608,6 +609,112 @@ static int jfs_show_options(struct seq_file *seq, struct vfsmount *vfs) return 0; } +#ifdef CONFIG_QUOTA + +/* Read data from quotafile - avoid pagecache and such because we cannot afford + * acquiring the locks... As quota files are never truncated and quota code + * itself serializes the operations (and noone else should touch the files) + * we don't have to be afraid of races */ +static ssize_t jfs_quota_read(struct super_block *sb, int type, char *data, + size_t len, loff_t off) +{ + struct inode *inode = sb_dqopt(sb)->files[type]; + sector_t blk = off >> sb->s_blocksize_bits; + int err = 0; + int offset = off & (sb->s_blocksize - 1); + int tocopy; + size_t toread; + struct buffer_head tmp_bh; + struct buffer_head *bh; + loff_t i_size = i_size_read(inode); + + if (off > i_size) + return 0; + if (off+len > i_size) + len = i_size-off; + toread = len; + while (toread > 0) { + tocopy = sb->s_blocksize - offset < toread ? + sb->s_blocksize - offset : toread; + + tmp_bh.b_state = 0; + tmp_bh.b_size = 1 << inode->i_blkbits; + err = jfs_get_block(inode, blk, &tmp_bh, 0); + if (err) + return err; + if (!buffer_mapped(&tmp_bh)) /* A hole? */ + memset(data, 0, tocopy); + else { + bh = sb_bread(sb, tmp_bh.b_blocknr); + if (!bh) + return -EIO; + memcpy(data, bh->b_data+offset, tocopy); + brelse(bh); + } + offset = 0; + toread -= tocopy; + data += tocopy; + blk++; + } + return len; +} + +/* Write to quotafile */ +static ssize_t jfs_quota_write(struct super_block *sb, int type, + const char *data, size_t len, loff_t off) +{ + struct inode *inode = sb_dqopt(sb)->files[type]; + sector_t blk = off >> sb->s_blocksize_bits; + int err = 0; + int offset = off & (sb->s_blocksize - 1); + int tocopy; + size_t towrite = len; + struct buffer_head tmp_bh; + struct buffer_head *bh; + + mutex_lock(&inode->i_mutex); + while (towrite > 0) { + tocopy = sb->s_blocksize - offset < towrite ? + sb->s_blocksize - offset : towrite; + + tmp_bh.b_state = 0; + err = jfs_get_block(inode, blk, &tmp_bh, 1); + if (err) + goto out; + if (offset || tocopy != sb->s_blocksize) + bh = sb_bread(sb, tmp_bh.b_blocknr); + else + bh = sb_getblk(sb, tmp_bh.b_blocknr); + if (!bh) { + err = -EIO; + goto out; + } + lock_buffer(bh); + memcpy(bh->b_data+offset, data, tocopy); + flush_dcache_page(bh->b_page); + set_buffer_uptodate(bh); + mark_buffer_dirty(bh); + unlock_buffer(bh); + brelse(bh); + offset = 0; + towrite -= tocopy; + data += tocopy; + blk++; + } +out: + if (len == towrite) + return err; + if (inode->i_size < off+len-towrite) + i_size_write(inode, off+len-towrite); + inode->i_version++; + inode->i_mtime = inode->i_ctime = CURRENT_TIME; + mark_inode_dirty(inode); + mutex_unlock(&inode->i_mutex); + return len - towrite; +} + +#endif + static struct super_operations jfs_super_operations = { .alloc_inode = jfs_alloc_inode, .destroy_inode = jfs_destroy_inode, @@ -621,7 +728,11 @@ static struct super_operations jfs_super_operations = { .unlockfs = jfs_unlockfs, .statfs = jfs_statfs, .remount_fs = jfs_remount, - .show_options = jfs_show_options + .show_options = jfs_show_options, +#ifdef CONFIG_QUOTA + .quota_read = jfs_quota_read, + .quota_write = jfs_quota_write, +#endif }; static struct export_operations jfs_export_operations = { From 5b9c9bf6c92274a6eb74fc8f86586ab592a7a1ec Mon Sep 17 00:00:00 2001 From: Kristen Carlson Accardi Date: Wed, 26 Jul 2006 13:59:00 -0400 Subject: [PATCH 006/488] ACPI: add Dock Station driver to MAINTAINERS file Signed-off-by: Kristen Carlson Accardi Signed-off-by: Len Brown --- MAINTAINERS | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index 645a9f85f33f..cf643071fbc6 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -875,6 +875,12 @@ M: rdunlap@xenotime.net T: git http://tali.admingilde.org/git/linux-docbook.git S: Maintained +DOCKING STATION DRIVER +P: Kristen Carlson Accardi +M: kristen.c.accardi@intel.com +L: linux-acpi@vger.kernel.org +S: Maintained + DOUBLETALK DRIVER P: James R. Van Zandt M: jrv@vanzandt.mv.com From 8bcb2839b74d605f5549962a6e69dc07768e95b6 Mon Sep 17 00:00:00 2001 From: Dave Kleikamp Date: Fri, 28 Jul 2006 08:46:05 -0500 Subject: [PATCH 007/488] JFS: Fix bug in quota code. tmp_bh.b_size must be initialized Signed-off-by: Dave Kleikamp --- fs/jfs/super.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/jfs/super.c b/fs/jfs/super.c index 90ee0de829c1..143bcd1d5eaa 100644 --- a/fs/jfs/super.c +++ b/fs/jfs/super.c @@ -678,6 +678,7 @@ static ssize_t jfs_quota_write(struct super_block *sb, int type, sb->s_blocksize - offset : towrite; tmp_bh.b_state = 0; + tmp_bh.b_size = 1 << inode->i_blkbits; err = jfs_get_block(inode, blk, &tmp_bh, 1); if (err) goto out; From b2b3c121076961333977f485f0d54c22121df920 Mon Sep 17 00:00:00 2001 From: Grant Grundler Date: Mon, 17 Jul 2006 07:22:45 -0600 Subject: [PATCH 008/488] [SCSI] sym2: claim only "Storage" class The follow patch fixes a problem for Matt Taggart. The Compaq system he had (dl380?) has a SmartArray device that exposes the 53c1510 device in both RAID and "normal" modes. The difference is in RAID mode, the smart array driver (IIRC) should claim the device instead of sym2 driver. Patch below prevents sym2 from claiming the device when the RAID "daughter board" is attached. Signed-off-by: Grant Grundler Signed-off-by: James Bottomley --- drivers/scsi/sym53c8xx_2/sym_glue.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/sym53c8xx_2/sym_glue.c b/drivers/scsi/sym53c8xx_2/sym_glue.c index 8c505076c0eb..739d3ef46a40 100644 --- a/drivers/scsi/sym53c8xx_2/sym_glue.c +++ b/drivers/scsi/sym53c8xx_2/sym_glue.c @@ -2084,7 +2084,7 @@ static struct pci_device_id sym2_id_table[] __devinitdata = { { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C860, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C1510, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, + PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_SCSI<<8, 0xffff00, 0UL }, { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C896, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C895, From 8d4fbd3f978ba49498dc7c6430368c4ff86a09fc Mon Sep 17 00:00:00 2001 From: HighPoint Linux Team Date: Mon, 24 Jul 2006 15:48:54 +0800 Subject: [PATCH 009/488] [SCSI] hptiop: wrong register used in hptiop_reset_hba() IOP reset message should be posted to inbound message register instead of outbound message register. Signed-off-by: HighPoint Linux Team Signed-off-by: James Bottomley --- drivers/scsi/hptiop.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/hptiop.c b/drivers/scsi/hptiop.c index ab2f8b267908..74d4d22e5c05 100644 --- a/drivers/scsi/hptiop.c +++ b/drivers/scsi/hptiop.c @@ -577,7 +577,7 @@ static int hptiop_reset_hba(struct hptiop_hba *hba) if (atomic_xchg(&hba->resetting, 1) == 0) { atomic_inc(&hba->reset_count); writel(IOPMU_INBOUND_MSG0_RESET, - &hba->iop->outbound_msgaddr0); + &hba->iop->inbound_msgaddr0); hptiop_pci_posting_flush(hba->iop); } From d82967c70658a408ea6cae5dc989ba8b2c0999e1 Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Mon, 24 Jul 2006 15:47:11 -0500 Subject: [PATCH 010/488] [SCSI] iscsi bugfixes: send correct error values to userspace In the xmit patch we are sending a -EXXX value to iscsi_conn_failure which is causing userspace to get confused. We should be sending a ISCSI_ERR_* value that userspace understands. Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- drivers/scsi/iscsi_tcp.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c index 848fb2aa4ca3..88dafdf45c47 100644 --- a/drivers/scsi/iscsi_tcp.c +++ b/drivers/scsi/iscsi_tcp.c @@ -843,7 +843,7 @@ more: if (rc == -EAGAIN) goto nomore; else { - iscsi_conn_failure(conn, rc); + iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED); return 0; } } @@ -859,7 +859,7 @@ more: } tcp_conn->in_progress = IN_PROGRESS_DATA_RECV; } else if (rc) { - iscsi_conn_failure(conn, rc); + iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED); return 0; } } @@ -897,7 +897,7 @@ more: if (rc) { if (rc == -EAGAIN) goto again; - iscsi_conn_failure(conn, rc); + iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED); return 0; } tcp_conn->in.copy -= tcp_conn->in.padding; From b6c395ed0387c824ddf125d3b74b576a2575c149 Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Mon, 24 Jul 2006 15:47:15 -0500 Subject: [PATCH 011/488] [SCSI] iscsi bugfixes: fix r2t handling The iscsi tcp code can pluck multiple rt2s from the tasks's r2tqueue in the xmit code. This can result in the task being queued on the xmit queue but gettting completed at the same time. This patch fixes the above bug by making the fifo a list so we always remove the entry on the list del. Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- drivers/scsi/iscsi_tcp.c | 45 ++++++++++---------- drivers/scsi/libiscsi.c | 90 +++++++++++++++++----------------------- include/scsi/libiscsi.h | 10 ++++- 3 files changed, 68 insertions(+), 77 deletions(-) diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c index 88dafdf45c47..ab324d984b8d 100644 --- a/drivers/scsi/iscsi_tcp.c +++ b/drivers/scsi/iscsi_tcp.c @@ -185,11 +185,19 @@ iscsi_hdr_extract(struct iscsi_tcp_conn *tcp_conn) * must be called with session lock */ static void -__iscsi_ctask_cleanup(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask) +iscsi_tcp_cleanup_ctask(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask) { struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data; + struct iscsi_r2t_info *r2t; struct scsi_cmnd *sc; + /* flush ctask's r2t queues */ + while (__kfifo_get(tcp_ctask->r2tqueue, (void*)&r2t, sizeof(void*))) { + __kfifo_put(tcp_ctask->r2tpool.queue, (void*)&r2t, + sizeof(void*)); + debug_scsi("iscsi_tcp_cleanup_ctask pending r2t dropped\n"); + } + sc = ctask->sc; if (unlikely(!sc)) return; @@ -374,6 +382,7 @@ iscsi_r2t_rsp(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask) spin_unlock(&session->lock); return 0; } + rc = __kfifo_get(tcp_ctask->r2tpool.queue, (void*)&r2t, sizeof(void*)); BUG_ON(!rc); @@ -399,7 +408,7 @@ iscsi_r2t_rsp(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask) tcp_ctask->exp_r2tsn = r2tsn + 1; tcp_ctask->xmstate |= XMSTATE_SOL_HDR; __kfifo_put(tcp_ctask->r2tqueue, (void*)&r2t, sizeof(void*)); - __kfifo_put(conn->xmitqueue, (void*)&ctask, sizeof(void*)); + list_move_tail(&ctask->running, &conn->xmitqueue); scsi_queue_work(session->host, &conn->xmitwork); conn->r2t_pdus_cnt++; @@ -484,7 +493,7 @@ iscsi_tcp_hdr_recv(struct iscsi_conn *conn) goto copy_hdr; spin_lock(&session->lock); - __iscsi_ctask_cleanup(conn, tcp_conn->in.ctask); + iscsi_tcp_cleanup_ctask(conn, tcp_conn->in.ctask); rc = __iscsi_complete_pdu(conn, hdr, NULL, 0); spin_unlock(&session->lock); break; @@ -745,10 +754,11 @@ static int iscsi_scsi_data_in(struct iscsi_conn *conn) done: /* check for non-exceptional status */ if (tcp_conn->in.hdr->flags & ISCSI_FLAG_DATA_STATUS) { - debug_scsi("done [sc %lx res %d itt 0x%x]\n", - (long)sc, sc->result, ctask->itt); + debug_scsi("done [sc %lx res %d itt 0x%x flags 0x%x]\n", + (long)sc, sc->result, ctask->itt, + tcp_conn->in.hdr->flags); spin_lock(&conn->session->lock); - __iscsi_ctask_cleanup(conn, ctask); + iscsi_tcp_cleanup_ctask(conn, ctask); __iscsi_complete_pdu(conn, tcp_conn->in.hdr, NULL, 0); spin_unlock(&conn->session->lock); } @@ -769,7 +779,7 @@ iscsi_data_recv(struct iscsi_conn *conn) break; case ISCSI_OP_SCSI_CMD_RSP: spin_lock(&conn->session->lock); - __iscsi_ctask_cleanup(conn, tcp_conn->in.ctask); + iscsi_tcp_cleanup_ctask(conn, tcp_conn->in.ctask); spin_unlock(&conn->session->lock); case ISCSI_OP_TEXT_RSP: case ISCSI_OP_LOGIN_RSP: @@ -1308,7 +1318,7 @@ iscsi_tcp_cmd_init(struct iscsi_cmd_task *ctask) ctask->imm_count - ctask->unsol_count; - debug_scsi("cmd [itt %x total %d imm %d imm_data %d " + debug_scsi("cmd [itt 0x%x total %d imm %d imm_data %d " "r2t_data %d]\n", ctask->itt, ctask->total_length, ctask->imm_count, ctask->unsol_count, tcp_ctask->r2t_data_count); @@ -1636,7 +1646,7 @@ handle_xmstate_sol_data(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask) } solicit_again: /* - * send Data-Out whitnin this R2T sequence. + * send Data-Out within this R2T sequence. */ if (!r2t->data_count) goto data_out_done; @@ -1731,7 +1741,7 @@ handle_xmstate_w_pad(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask) struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data; struct iscsi_tcp_conn *tcp_conn = conn->dd_data; struct iscsi_data_task *dtask = tcp_ctask->dtask; - int sent, rc; + int sent = 0, rc; tcp_ctask->xmstate &= ~XMSTATE_W_PAD; iscsi_buf_init_iov(&tcp_ctask->sendbuf, (char*)&tcp_ctask->pad, @@ -2001,20 +2011,6 @@ iscsi_tcp_conn_bind(struct iscsi_cls_session *cls_session, return 0; } -static void -iscsi_tcp_cleanup_ctask(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask) -{ - struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data; - struct iscsi_r2t_info *r2t; - - /* flush ctask's r2t queues */ - while (__kfifo_get(tcp_ctask->r2tqueue, (void*)&r2t, sizeof(void*))) - __kfifo_put(tcp_ctask->r2tpool.queue, (void*)&r2t, - sizeof(void*)); - - __iscsi_ctask_cleanup(conn, ctask); -} - static void iscsi_tcp_suspend_conn_rx(struct iscsi_conn *conn) { @@ -2057,6 +2053,7 @@ iscsi_tcp_mgmt_init(struct iscsi_conn *conn, struct iscsi_mgmt_task *mtask, iscsi_buf_init_iov(&tcp_mtask->headbuf, (char*)mtask->hdr, sizeof(struct iscsi_hdr)); tcp_mtask->xmstate = XMSTATE_IMM_HDR; + tcp_mtask->sent = 0; if (mtask->data_count) iscsi_buf_init_iov(&tcp_mtask->sendbuf, (char*)mtask->data, diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index 7e6e031cc41b..1a8cd20f484f 100644 --- a/drivers/scsi/libiscsi.c +++ b/drivers/scsi/libiscsi.c @@ -189,6 +189,7 @@ static void iscsi_complete_command(struct iscsi_session *session, { struct scsi_cmnd *sc = ctask->sc; + ctask->state = ISCSI_TASK_COMPLETED; ctask->sc = NULL; list_del_init(&ctask->running); __kfifo_put(session->cmdpool.queue, (void*)&ctask, sizeof(void*)); @@ -568,20 +569,24 @@ static int iscsi_data_xmit(struct iscsi_conn *conn) } /* process command queue */ - while (__kfifo_get(conn->xmitqueue, (void*)&conn->ctask, - sizeof(void*))) { + spin_lock_bh(&conn->session->lock); + while (!list_empty(&conn->xmitqueue)) { /* * iscsi tcp may readd the task to the xmitqueue to send * write data */ - spin_lock_bh(&conn->session->lock); - if (list_empty(&conn->ctask->running)) - list_add_tail(&conn->ctask->running, &conn->run_list); + conn->ctask = list_entry(conn->xmitqueue.next, + struct iscsi_cmd_task, running); + conn->ctask->state = ISCSI_TASK_RUNNING; + list_move_tail(conn->xmitqueue.next, &conn->run_list); spin_unlock_bh(&conn->session->lock); + rc = tt->xmit_cmd_task(conn, conn->ctask); if (rc) goto again; + spin_lock_bh(&conn->session->lock); } + spin_unlock_bh(&conn->session->lock); /* done with this ctask */ conn->ctask = NULL; @@ -691,6 +696,7 @@ int iscsi_queuecommand(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *)) sc->SCp.phase = session->age; sc->SCp.ptr = (char *)ctask; + ctask->state = ISCSI_TASK_PENDING; ctask->mtask = NULL; ctask->conn = conn; ctask->sc = sc; @@ -700,7 +706,7 @@ int iscsi_queuecommand(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *)) session->tt->init_cmd_task(ctask); - __kfifo_put(conn->xmitqueue, (void*)&ctask, sizeof(void*)); + list_add_tail(&ctask->running, &conn->xmitqueue); debug_scsi( "ctask enq [%s cid %d sc %lx itt 0x%x len %d cmdsn %d win %d]\n", sc->sc_data_direction == DMA_TO_DEVICE ? "write" : "read", @@ -977,31 +983,27 @@ static int iscsi_exec_abort_task(struct scsi_cmnd *sc, /* * xmit mutex and session lock must be held */ -#define iscsi_remove_task(tasktype) \ -static struct iscsi_##tasktype * \ -iscsi_remove_##tasktype(struct kfifo *fifo, uint32_t itt) \ -{ \ - int i, nr_tasks = __kfifo_len(fifo) / sizeof(void*); \ - struct iscsi_##tasktype *task; \ - \ - debug_scsi("searching %d tasks\n", nr_tasks); \ - \ - for (i = 0; i < nr_tasks; i++) { \ - __kfifo_get(fifo, (void*)&task, sizeof(void*)); \ - debug_scsi("check task %u\n", task->itt); \ - \ - if (task->itt == itt) { \ - debug_scsi("matched task\n"); \ - return task; \ - } \ - \ - __kfifo_put(fifo, (void*)&task, sizeof(void*)); \ - } \ - return NULL; \ -} +static struct iscsi_mgmt_task * +iscsi_remove_mgmt_task(struct kfifo *fifo, uint32_t itt) +{ + int i, nr_tasks = __kfifo_len(fifo) / sizeof(void*); + struct iscsi_mgmt_task *task; -iscsi_remove_task(mgmt_task); -iscsi_remove_task(cmd_task); + debug_scsi("searching %d tasks\n", nr_tasks); + + for (i = 0; i < nr_tasks; i++) { + __kfifo_get(fifo, (void*)&task, sizeof(void*)); + debug_scsi("check task %u\n", task->itt); + + if (task->itt == itt) { + debug_scsi("matched task\n"); + return task; + } + + __kfifo_put(fifo, (void*)&task, sizeof(void*)); + } + return NULL; +} static int iscsi_ctask_mtask_cleanup(struct iscsi_cmd_task *ctask) { @@ -1043,7 +1045,6 @@ int iscsi_eh_abort(struct scsi_cmnd *sc) struct iscsi_cmd_task *ctask = (struct iscsi_cmd_task *)sc->SCp.ptr; struct iscsi_conn *conn = ctask->conn; struct iscsi_session *session = conn->session; - struct iscsi_cmd_task *pending_ctask; int rc; conn->eh_abort_cnt++; @@ -1071,17 +1072,8 @@ int iscsi_eh_abort(struct scsi_cmnd *sc) goto failed; } - /* check for the easy pending cmd abort */ - pending_ctask = iscsi_remove_cmd_task(conn->xmitqueue, ctask->itt); - if (pending_ctask) { - /* iscsi_tcp queues write transfers on the xmitqueue */ - if (list_empty(&pending_ctask->running)) { - debug_scsi("found pending task\n"); - goto success; - } else - __kfifo_put(conn->xmitqueue, (void*)&pending_ctask, - sizeof(void*)); - } + if (ctask->state == ISCSI_TASK_PENDING) + goto success; conn->tmabort_state = TMABORT_INITIAL; @@ -1263,6 +1255,7 @@ iscsi_session_setup(struct iscsi_transport *iscsit, if (cmd_task_size) ctask->dd_data = &ctask[1]; ctask->itt = cmd_i; + INIT_LIST_HEAD(&ctask->running); } spin_lock_init(&session->lock); @@ -1282,6 +1275,7 @@ iscsi_session_setup(struct iscsi_transport *iscsit, if (mgmt_task_size) mtask->dd_data = &mtask[1]; mtask->itt = ISCSI_MGMT_ITT_OFFSET + cmd_i; + INIT_LIST_HEAD(&mtask->running); } if (scsi_add_host(shost, NULL)) @@ -1361,12 +1355,7 @@ iscsi_conn_setup(struct iscsi_cls_session *cls_session, uint32_t conn_idx) conn->tmabort_state = TMABORT_INITIAL; INIT_LIST_HEAD(&conn->run_list); INIT_LIST_HEAD(&conn->mgmt_run_list); - - /* initialize general xmit PDU commands queue */ - conn->xmitqueue = kfifo_alloc(session->cmds_max * sizeof(void*), - GFP_KERNEL, NULL); - if (conn->xmitqueue == ERR_PTR(-ENOMEM)) - goto xmitqueue_alloc_fail; + INIT_LIST_HEAD(&conn->xmitqueue); /* initialize general immediate & non-immediate PDU commands queue */ conn->immqueue = kfifo_alloc(session->mgmtpool_max * sizeof(void*), @@ -1410,8 +1399,6 @@ login_mtask_alloc_fail: mgmtqueue_alloc_fail: kfifo_free(conn->immqueue); immqueue_alloc_fail: - kfifo_free(conn->xmitqueue); -xmitqueue_alloc_fail: iscsi_destroy_conn(cls_conn); return NULL; } @@ -1489,7 +1476,6 @@ void iscsi_conn_teardown(struct iscsi_cls_conn *cls_conn) session->cmdsn = session->max_cmdsn = session->exp_cmdsn = 1; spin_unlock_bh(&session->lock); - kfifo_free(conn->xmitqueue); kfifo_free(conn->immqueue); kfifo_free(conn->mgmtqueue); @@ -1572,7 +1558,7 @@ static void fail_all_commands(struct iscsi_conn *conn) struct iscsi_cmd_task *ctask, *tmp; /* flush pending */ - while (__kfifo_get(conn->xmitqueue, (void*)&ctask, sizeof(void*))) { + list_for_each_entry_safe(ctask, tmp, &conn->xmitqueue, running) { debug_scsi("failing pending sc %p itt 0x%x\n", ctask->sc, ctask->itt); fail_command(conn, ctask, DID_BUS_BUSY << 16); diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h index ba2760802ded..e71d6e96eca6 100644 --- a/include/scsi/libiscsi.h +++ b/include/scsi/libiscsi.h @@ -83,6 +83,12 @@ struct iscsi_mgmt_task { struct list_head running; }; +enum { + ISCSI_TASK_COMPLETED, + ISCSI_TASK_PENDING, + ISCSI_TASK_RUNNING, +}; + struct iscsi_cmd_task { /* * Becuae LLDs allocate their hdr differently, this is a pointer to @@ -101,6 +107,8 @@ struct iscsi_cmd_task { struct iscsi_conn *conn; /* used connection */ struct iscsi_mgmt_task *mtask; /* tmf mtask in progr */ + /* state set/tested under session->lock */ + int state; struct list_head running; /* running cmd list */ void *dd_data; /* driver/transport data */ }; @@ -134,7 +142,7 @@ struct iscsi_conn { struct kfifo *immqueue; /* immediate xmit queue */ struct kfifo *mgmtqueue; /* mgmt (control) xmit queue */ struct list_head mgmt_run_list; /* list of control tasks */ - struct kfifo *xmitqueue; /* data-path cmd queue */ + struct list_head xmitqueue; /* data-path cmd queue */ struct list_head run_list; /* list of cmds in progress */ struct work_struct xmitwork; /* per-conn. xmit workqueue */ /* From 275fd7d129fdd16d1dc0ec6a8d60bd6b72a76e31 Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Mon, 24 Jul 2006 15:47:17 -0500 Subject: [PATCH 012/488] [SCSI] iscsi bugfixes: handle data rsp errors if iscsi_data_rsp fails we must bail out. Since the pdu values like data length are invalid we cannot continue to process the data since it could over run buffers. This fixes a bug with cisco 5428s where that target is sending too much data. Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- drivers/scsi/iscsi_tcp.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c index ab324d984b8d..7d784596a1ea 100644 --- a/drivers/scsi/iscsi_tcp.c +++ b/drivers/scsi/iscsi_tcp.c @@ -486,6 +486,8 @@ iscsi_tcp_hdr_recv(struct iscsi_conn *conn) case ISCSI_OP_SCSI_DATA_IN: tcp_conn->in.ctask = session->cmds[itt]; rc = iscsi_data_rsp(conn, tcp_conn->in.ctask); + if (rc) + return rc; /* fall through */ case ISCSI_OP_SCSI_CMD_RSP: tcp_conn->in.ctask = session->cmds[itt]; @@ -532,7 +534,7 @@ copy_hdr: * skbs to complete the command then we have to copy the header * for later use */ - if (tcp_conn->in.zero_copy_hdr && tcp_conn->in.copy < + if (tcp_conn->in.zero_copy_hdr && tcp_conn->in.copy <= (tcp_conn->in.datalen + tcp_conn->in.padding + (conn->datadgst_en ? 4 : 0))) { debug_tcp("Copying header for later use. in.copy %d in.datalen" From 7ea8b82847293c2311cf08fc3ed31ab0e452a27e Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Mon, 24 Jul 2006 15:47:22 -0500 Subject: [PATCH 013/488] [SCSI] iscsi bugfixes: fix abort handling Abort handler fixes. If a connection is dropped and reconnected while an abort is running then we should assume the recovery code will clean up the abort. Not doing so causes a oops. And if a command completes then we get the status for the abort, we do not need to call into the LLD to cleanup the resources. Doing this causes and oops in iser because it ends up freeing some resources twice. Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- drivers/scsi/libiscsi.c | 71 ++++++++++++++++++++++++++--------------- include/scsi/libiscsi.h | 1 + 2 files changed, 47 insertions(+), 25 deletions(-) diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index 1a8cd20f484f..4e2ca8f7d9a1 100644 --- a/drivers/scsi/libiscsi.c +++ b/drivers/scsi/libiscsi.c @@ -276,6 +276,25 @@ out: return rc; } +static void iscsi_tmf_rsp(struct iscsi_conn *conn, struct iscsi_hdr *hdr) +{ + struct iscsi_tm_rsp *tmf = (struct iscsi_tm_rsp *)hdr; + + conn->exp_statsn = be32_to_cpu(hdr->statsn) + 1; + conn->tmfrsp_pdus_cnt++; + + if (conn->tmabort_state != TMABORT_INITIAL) + return; + + if (tmf->response == ISCSI_TMF_RSP_COMPLETE) + conn->tmabort_state = TMABORT_SUCCESS; + else if (tmf->response == ISCSI_TMF_RSP_NO_TASK) + conn->tmabort_state = TMABORT_NOT_FOUND; + else + conn->tmabort_state = TMABORT_FAILED; + wake_up(&conn->ehwait); +} + /** * __iscsi_complete_pdu - complete pdu * @conn: iscsi conn @@ -361,16 +380,7 @@ int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr, break; } - conn->exp_statsn = be32_to_cpu(hdr->statsn) + 1; - conn->tmfrsp_pdus_cnt++; - if (conn->tmabort_state == TMABORT_INITIAL) { - conn->tmabort_state = - ((struct iscsi_tm_rsp *)hdr)-> - response == ISCSI_TMF_RSP_COMPLETE ? - TMABORT_SUCCESS:TMABORT_FAILED; - /* unblock eh_abort() */ - wake_up(&conn->ehwait); - } + iscsi_tmf_rsp(conn, hdr); break; case ISCSI_OP_NOOP_IN: if (hdr->ttt != ISCSI_RESERVED_TAG) { @@ -1029,12 +1039,13 @@ static void fail_command(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask, { struct scsi_cmnd *sc; - conn->session->tt->cleanup_cmd_task(conn, ctask); - iscsi_ctask_mtask_cleanup(ctask); - sc = ctask->sc; if (!sc) return; + + conn->session->tt->cleanup_cmd_task(conn, ctask); + iscsi_ctask_mtask_cleanup(ctask); + sc->result = err; sc->resid = sc->request_bufflen; iscsi_complete_command(conn->session, ctask); @@ -1062,8 +1073,11 @@ int iscsi_eh_abort(struct scsi_cmnd *sc) goto failed; /* ctask completed before time out */ - if (!ctask->sc) - goto success; + if (!ctask->sc) { + spin_unlock_bh(&session->lock); + debug_scsi("sc completed while abort in progress\n"); + goto success_rel_mutex; + } /* what should we do here ? */ if (conn->ctask == ctask) { @@ -1073,7 +1087,7 @@ int iscsi_eh_abort(struct scsi_cmnd *sc) } if (ctask->state == ISCSI_TASK_PENDING) - goto success; + goto success_cleanup; conn->tmabort_state = TMABORT_INITIAL; @@ -1081,25 +1095,31 @@ int iscsi_eh_abort(struct scsi_cmnd *sc) rc = iscsi_exec_abort_task(sc, ctask); spin_lock_bh(&session->lock); - iscsi_ctask_mtask_cleanup(ctask); if (rc || sc->SCp.phase != session->age || session->state != ISCSI_STATE_LOGGED_IN) goto failed; + iscsi_ctask_mtask_cleanup(ctask); - /* ctask completed before tmf abort response */ - if (!ctask->sc) { - debug_scsi("sc completed while abort in progress\n"); - goto success; - } - - if (conn->tmabort_state != TMABORT_SUCCESS) { + switch (conn->tmabort_state) { + case TMABORT_SUCCESS: + goto success_cleanup; + case TMABORT_NOT_FOUND: + if (!ctask->sc) { + /* ctask completed before tmf abort response */ + spin_unlock_bh(&session->lock); + debug_scsi("sc completed while abort in progress\n"); + goto success_rel_mutex; + } + /* fall through */ + default: + /* timedout or failed */ spin_unlock_bh(&session->lock); iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED); spin_lock_bh(&session->lock); goto failed; } -success: +success_cleanup: debug_scsi("abort success [sc %lx itt 0x%x]\n", (long)sc, ctask->itt); spin_unlock_bh(&session->lock); @@ -1113,6 +1133,7 @@ success: spin_unlock(&session->lock); write_unlock_bh(conn->recv_lock); +success_rel_mutex: mutex_unlock(&conn->xmitmutex); return SUCCESS; diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h index e71d6e96eca6..3f69f7e58f89 100644 --- a/include/scsi/libiscsi.h +++ b/include/scsi/libiscsi.h @@ -60,6 +60,7 @@ struct iscsi_nopin; #define TMABORT_SUCCESS 0x1 #define TMABORT_FAILED 0x2 #define TMABORT_TIMEDOUT 0x3 +#define TMABORT_NOT_FOUND 0x4 /* Connection suspend "bit" */ #define ISCSI_SUSPEND_BIT 1 From 1c83469d36a9dd30dbf1fb9fc5ca3be3a0e64ff4 Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Mon, 24 Jul 2006 15:47:26 -0500 Subject: [PATCH 014/488] [SCSI] iscsi bugfixes: fix oops when iser is flushing io When we enter recovery and flush the running commands we cannot freee the connection before flushing the commands. Some commands may have a reference to the connection that needs to be released before. iscsi_stop was forcing the term and suspend too early and was causing a oops in iser, so this patch removes those callbacks all together and allows the LLD to handle that detail. Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- drivers/infiniband/ulp/iser/iscsi_iser.c | 22 +------- drivers/scsi/iscsi_tcp.c | 67 ++++++++++-------------- drivers/scsi/libiscsi.c | 12 ++--- include/scsi/scsi_transport_iscsi.h | 4 -- 4 files changed, 34 insertions(+), 71 deletions(-) diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c index 34b0da5cfa0a..1437d7ee3b19 100644 --- a/drivers/infiniband/ulp/iser/iscsi_iser.c +++ b/drivers/infiniband/ulp/iser/iscsi_iser.c @@ -378,21 +378,6 @@ iscsi_iser_conn_start(struct iscsi_cls_conn *cls_conn) return iser_conn_set_full_featured_mode(conn); } -static void -iscsi_iser_conn_terminate(struct iscsi_conn *conn) -{ - struct iscsi_iser_conn *iser_conn = conn->dd_data; - struct iser_conn *ib_conn = iser_conn->ib_conn; - - BUG_ON(!ib_conn); - /* starts conn teardown process, waits until all previously * - * posted buffers get flushed, deallocates all conn resources */ - iser_conn_terminate(ib_conn); - iser_conn->ib_conn = NULL; - conn->recv_lock = NULL; -} - - static struct iscsi_transport iscsi_iser_transport; static struct iscsi_cls_session * @@ -555,13 +540,13 @@ iscsi_iser_ep_poll(__u64 ep_handle, int timeout_ms) static void iscsi_iser_ep_disconnect(__u64 ep_handle) { - struct iser_conn *ib_conn = iscsi_iser_ib_conn_lookup(ep_handle); + struct iser_conn *ib_conn; + ib_conn = iscsi_iser_ib_conn_lookup(ep_handle); if (!ib_conn) return; iser_err("ib conn %p state %d\n",ib_conn, ib_conn->state); - iser_conn_terminate(ib_conn); } @@ -614,9 +599,6 @@ static struct iscsi_transport iscsi_iser_transport = { .get_session_param = iscsi_session_get_param, .start_conn = iscsi_iser_conn_start, .stop_conn = iscsi_conn_stop, - /* these are called as part of conn recovery */ - .suspend_conn_recv = NULL, /* FIXME is/how this relvant to iser? */ - .terminate_conn = iscsi_iser_conn_terminate, /* IO */ .send_pdu = iscsi_conn_send_pdu, .get_stats = iscsi_iser_conn_get_stats, diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c index 7d784596a1ea..b6c68be6b866 100644 --- a/drivers/scsi/iscsi_tcp.c +++ b/drivers/scsi/iscsi_tcp.c @@ -1040,9 +1040,8 @@ iscsi_conn_set_callbacks(struct iscsi_conn *conn) } static void -iscsi_conn_restore_callbacks(struct iscsi_conn *conn) +iscsi_conn_restore_callbacks(struct iscsi_tcp_conn *tcp_conn) { - struct iscsi_tcp_conn *tcp_conn = conn->dd_data; struct sock *sk = tcp_conn->sock->sk; /* restore socket callbacks, see also: iscsi_conn_set_callbacks() */ @@ -1932,6 +1931,23 @@ tcp_conn_alloc_fail: return NULL; } +static void +iscsi_tcp_release_conn(struct iscsi_conn *conn) +{ + struct iscsi_tcp_conn *tcp_conn = conn->dd_data; + + if (!tcp_conn->sock) + return; + + sock_hold(tcp_conn->sock->sk); + iscsi_conn_restore_callbacks(tcp_conn); + sock_put(tcp_conn->sock->sk); + + sock_release(tcp_conn->sock); + tcp_conn->sock = NULL; + conn->recv_lock = NULL; +} + static void iscsi_tcp_conn_destroy(struct iscsi_cls_conn *cls_conn) { @@ -1942,6 +1958,7 @@ iscsi_tcp_conn_destroy(struct iscsi_cls_conn *cls_conn) if (conn->hdrdgst_en || conn->datadgst_en) digest = 1; + iscsi_tcp_release_conn(conn); iscsi_conn_teardown(cls_conn); /* now free tcp_conn */ @@ -1965,6 +1982,15 @@ iscsi_tcp_conn_destroy(struct iscsi_cls_conn *cls_conn) kfree(tcp_conn); } +static void +iscsi_tcp_conn_stop(struct iscsi_cls_conn *cls_conn, int flag) +{ + struct iscsi_conn *conn = cls_conn->dd_data; + + iscsi_conn_stop(cls_conn, flag); + iscsi_tcp_release_conn(conn); +} + static int iscsi_tcp_conn_bind(struct iscsi_cls_session *cls_session, struct iscsi_cls_conn *cls_conn, uint64_t transport_eph, @@ -2013,38 +2039,6 @@ iscsi_tcp_conn_bind(struct iscsi_cls_session *cls_session, return 0; } -static void -iscsi_tcp_suspend_conn_rx(struct iscsi_conn *conn) -{ - struct iscsi_tcp_conn *tcp_conn = conn->dd_data; - struct sock *sk; - - if (!tcp_conn->sock) - return; - - sk = tcp_conn->sock->sk; - write_lock_bh(&sk->sk_callback_lock); - set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_rx); - write_unlock_bh(&sk->sk_callback_lock); -} - -static void -iscsi_tcp_terminate_conn(struct iscsi_conn *conn) -{ - struct iscsi_tcp_conn *tcp_conn = conn->dd_data; - - if (!tcp_conn->sock) - return; - - sock_hold(tcp_conn->sock->sk); - iscsi_conn_restore_callbacks(conn); - sock_put(tcp_conn->sock->sk); - - sock_release(tcp_conn->sock); - tcp_conn->sock = NULL; - conn->recv_lock = NULL; -} - /* called with host lock */ static void iscsi_tcp_mgmt_init(struct iscsi_conn *conn, struct iscsi_mgmt_task *mtask, @@ -2413,10 +2407,7 @@ static struct iscsi_transport iscsi_tcp_transport = { .get_conn_param = iscsi_tcp_conn_get_param, .get_session_param = iscsi_session_get_param, .start_conn = iscsi_conn_start, - .stop_conn = iscsi_conn_stop, - /* these are called as part of conn recovery */ - .suspend_conn_recv = iscsi_tcp_suspend_conn_rx, - .terminate_conn = iscsi_tcp_terminate_conn, + .stop_conn = iscsi_tcp_conn_stop, /* IO */ .send_pdu = iscsi_conn_send_pdu, .get_stats = iscsi_conn_get_stats, diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index 4e2ca8f7d9a1..36f520b9260e 100644 --- a/drivers/scsi/libiscsi.c +++ b/drivers/scsi/libiscsi.c @@ -1440,12 +1440,6 @@ void iscsi_conn_teardown(struct iscsi_cls_conn *cls_conn) set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx); mutex_lock(&conn->xmitmutex); - if (conn->c_stage == ISCSI_CONN_INITIAL_STAGE) { - if (session->tt->suspend_conn_recv) - session->tt->suspend_conn_recv(conn); - - session->tt->terminate_conn(conn); - } spin_lock_bh(&session->lock); conn->c_stage = ISCSI_CONN_CLEANUP_WAIT; @@ -1622,8 +1616,9 @@ static void iscsi_start_session_recovery(struct iscsi_session *session, set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx); spin_unlock_bh(&session->lock); - if (session->tt->suspend_conn_recv) - session->tt->suspend_conn_recv(conn); + write_lock_bh(conn->recv_lock); + set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_rx); + write_unlock_bh(conn->recv_lock); mutex_lock(&conn->xmitmutex); /* @@ -1642,7 +1637,6 @@ static void iscsi_start_session_recovery(struct iscsi_session *session, } } - session->tt->terminate_conn(conn); /* * flush queues. */ diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h index 5a3df1d7085f..39e833260bd0 100644 --- a/include/scsi/scsi_transport_iscsi.h +++ b/include/scsi/scsi_transport_iscsi.h @@ -57,8 +57,6 @@ struct sockaddr; * @stop_conn: suspend/recover/terminate connection * @send_pdu: send iSCSI PDU, Login, Logout, NOP-Out, Reject, Text. * @session_recovery_timedout: notify LLD a block during recovery timed out - * @suspend_conn_recv: susepend the recv side of the connection - * @termincate_conn: destroy socket connection. Called with mutex lock. * @init_cmd_task: Initialize a iscsi_cmd_task and any internal structs. * Called from queuecommand with session lock held. * @init_mgmt_task: Initialize a iscsi_mgmt_task and any internal structs. @@ -112,8 +110,6 @@ struct iscsi_transport { char *data, uint32_t data_size); void (*get_stats) (struct iscsi_cls_conn *conn, struct iscsi_stats *stats); - void (*suspend_conn_recv) (struct iscsi_conn *conn); - void (*terminate_conn) (struct iscsi_conn *conn); void (*init_cmd_task) (struct iscsi_cmd_task *ctask); void (*init_mgmt_task) (struct iscsi_conn *conn, struct iscsi_mgmt_task *mtask, From 63f75cc8a7e6ce453e38a7b90cdcae83d63f1ea7 Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Mon, 24 Jul 2006 15:47:29 -0500 Subject: [PATCH 015/488] [SCSI] iscsi bugfixes: fix oops when removing session We are touching the cls_session after we have freed it. This causes a oops. Signed-off-by: Or Gerlitz Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- drivers/scsi/libiscsi.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index 36f520b9260e..c989bc6180b3 100644 --- a/drivers/scsi/libiscsi.c +++ b/drivers/scsi/libiscsi.c @@ -1337,6 +1337,7 @@ void iscsi_session_teardown(struct iscsi_cls_session *cls_session) { struct Scsi_Host *shost = iscsi_session_to_shost(cls_session); struct iscsi_session *session = iscsi_hostdata(shost->hostdata); + struct module *owner = cls_session->transport->owner; scsi_remove_host(shost); @@ -1345,7 +1346,7 @@ void iscsi_session_teardown(struct iscsi_cls_session *cls_session) iscsi_destroy_session(cls_session); scsi_host_put(shost); - module_put(cls_session->transport->owner); + module_put(owner); } EXPORT_SYMBOL_GPL(iscsi_session_teardown); From 9aaa2b4621280b6de1ecfb6dd7cd5cbe59fd1264 Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Mon, 24 Jul 2006 15:47:34 -0500 Subject: [PATCH 016/488] [SCSI] iscsi bugfixes: dont use GFP_KERNEL for sending errors iscsi_tcp can send error events from soft irq context so we cannot use GFP_KERNEL. Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- drivers/scsi/scsi_transport_iscsi.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c index 7b9e8fa1a4e0..30a47c133091 100644 --- a/drivers/scsi/scsi_transport_iscsi.c +++ b/drivers/scsi/scsi_transport_iscsi.c @@ -634,13 +634,13 @@ mempool_zone_get_skb(struct mempool_zone *zone) } static int -iscsi_broadcast_skb(struct mempool_zone *zone, struct sk_buff *skb) +iscsi_broadcast_skb(struct mempool_zone *zone, struct sk_buff *skb, gfp_t gfp) { unsigned long flags; int rc; skb_get(skb); - rc = netlink_broadcast(nls, skb, 0, 1, GFP_KERNEL); + rc = netlink_broadcast(nls, skb, 0, 1, gfp); if (rc < 0) { mempool_free(skb, zone->pool); printk(KERN_ERR "iscsi: can not broadcast skb (%d)\n", rc); @@ -749,7 +749,7 @@ void iscsi_conn_error(struct iscsi_cls_conn *conn, enum iscsi_err error) ev->r.connerror.cid = conn->cid; ev->r.connerror.sid = iscsi_conn_get_sid(conn); - iscsi_broadcast_skb(conn->z_error, skb); + iscsi_broadcast_skb(conn->z_error, skb, GFP_ATOMIC); dev_printk(KERN_INFO, &conn->dev, "iscsi: detected conn error (%d)\n", error); @@ -895,7 +895,7 @@ int iscsi_if_destroy_session_done(struct iscsi_cls_conn *conn) * this will occur if the daemon is not up, so we just warn * the user and when the daemon is restarted it will handle it */ - rc = iscsi_broadcast_skb(conn->z_pdu, skb); + rc = iscsi_broadcast_skb(conn->z_pdu, skb, GFP_KERNEL); if (rc < 0) dev_printk(KERN_ERR, &conn->dev, "Cannot notify userspace of " "session destruction event. Check iscsi daemon\n"); @@ -958,7 +958,7 @@ int iscsi_if_create_session_done(struct iscsi_cls_conn *conn) * this will occur if the daemon is not up, so we just warn * the user and when the daemon is restarted it will handle it */ - rc = iscsi_broadcast_skb(conn->z_pdu, skb); + rc = iscsi_broadcast_skb(conn->z_pdu, skb, GFP_KERNEL); if (rc < 0) dev_printk(KERN_ERR, &conn->dev, "Cannot notify userspace of " "session creation event. Check iscsi daemon\n"); From c8dc1e523b0f1e6dd71cdabd8c7d7587c6dc27f9 Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Mon, 24 Jul 2006 15:47:39 -0500 Subject: [PATCH 017/488] [SCSI] iscsi bugfixes: reduce memory allocations We currently try to allocate a max_recv_data_segment_length which can be very large (default is 64K), and common uses are up to 1MB. It is very very difficult to allocte this much contiguous memory and it turns out we never even use it. We really only need a couple of pages, so this patch has us allocates just what we know what we need today. Later if vendors start adding vendor specific data and we need to handle large buffers we can do this, but for the last 4 years we have not seen anyone do this or request it. Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- drivers/scsi/iscsi_tcp.c | 83 +++++++++++----------------------------- drivers/scsi/iscsi_tcp.h | 2 - drivers/scsi/libiscsi.c | 10 +++-- include/scsi/libiscsi.h | 8 ++++ 4 files changed, 38 insertions(+), 65 deletions(-) diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c index b6c68be6b866..aa20adc79f02 100644 --- a/drivers/scsi/iscsi_tcp.c +++ b/drivers/scsi/iscsi_tcp.c @@ -511,13 +511,28 @@ iscsi_tcp_hdr_recv(struct iscsi_conn *conn) break; case ISCSI_OP_LOGIN_RSP: case ISCSI_OP_TEXT_RSP: - case ISCSI_OP_LOGOUT_RSP: - case ISCSI_OP_NOOP_IN: case ISCSI_OP_REJECT: case ISCSI_OP_ASYNC_EVENT: + /* + * It is possible that we could get a PDU with a buffer larger + * than 8K, but there are no targets that currently do this. + * For now we fail until we find a vendor that needs it + */ + if (DEFAULT_MAX_RECV_DATA_SEGMENT_LENGTH < + tcp_conn->in.datalen) { + printk(KERN_ERR "iscsi_tcp: received buffer of len %u " + "but conn buffer is only %u (opcode %0x)\n", + tcp_conn->in.datalen, + DEFAULT_MAX_RECV_DATA_SEGMENT_LENGTH, opcode); + rc = ISCSI_ERR_PROTO; + break; + } + if (tcp_conn->in.datalen) goto copy_hdr; /* fall through */ + case ISCSI_OP_LOGOUT_RSP: + case ISCSI_OP_NOOP_IN: case ISCSI_OP_SCSI_TMFUNC_RSP: rc = iscsi_complete_pdu(conn, hdr, NULL, 0); break; @@ -625,9 +640,9 @@ iscsi_ctask_copy(struct iscsi_tcp_conn *tcp_conn, struct iscsi_cmd_task *ctask, * byte counters. **/ static inline int -iscsi_tcp_copy(struct iscsi_tcp_conn *tcp_conn) +iscsi_tcp_copy(struct iscsi_conn *conn) { - void *buf = tcp_conn->data; + struct iscsi_tcp_conn *tcp_conn = conn->dd_data; int buf_size = tcp_conn->in.datalen; int buf_left = buf_size - tcp_conn->data_copied; int size = min(tcp_conn->in.copy, buf_left); @@ -638,7 +653,7 @@ iscsi_tcp_copy(struct iscsi_tcp_conn *tcp_conn) BUG_ON(size <= 0); rc = skb_copy_bits(tcp_conn->in.skb, tcp_conn->in.offset, - (char*)buf + tcp_conn->data_copied, size); + (char*)conn->data + tcp_conn->data_copied, size); BUG_ON(rc); tcp_conn->in.offset += size; @@ -785,22 +800,21 @@ iscsi_data_recv(struct iscsi_conn *conn) spin_unlock(&conn->session->lock); case ISCSI_OP_TEXT_RSP: case ISCSI_OP_LOGIN_RSP: - case ISCSI_OP_NOOP_IN: case ISCSI_OP_ASYNC_EVENT: case ISCSI_OP_REJECT: /* * Collect data segment to the connection's data * placeholder */ - if (iscsi_tcp_copy(tcp_conn)) { + if (iscsi_tcp_copy(conn)) { rc = -EAGAIN; goto exit; } - rc = iscsi_complete_pdu(conn, tcp_conn->in.hdr, tcp_conn->data, + rc = iscsi_complete_pdu(conn, tcp_conn->in.hdr, conn->data, tcp_conn->in.datalen); if (!rc && conn->datadgst_en && opcode != ISCSI_OP_LOGIN_RSP) - iscsi_recv_digest_update(tcp_conn, tcp_conn->data, + iscsi_recv_digest_update(tcp_conn, conn->data, tcp_conn->in.datalen); break; default: @@ -1911,21 +1925,9 @@ iscsi_tcp_conn_create(struct iscsi_cls_session *cls_session, uint32_t conn_idx) tcp_conn->in_progress = IN_PROGRESS_WAIT_HEADER; /* initial operational parameters */ tcp_conn->hdr_size = sizeof(struct iscsi_hdr); - tcp_conn->data_size = DEFAULT_MAX_RECV_DATA_SEGMENT_LENGTH; - - /* allocate initial PDU receive place holder */ - if (tcp_conn->data_size <= PAGE_SIZE) - tcp_conn->data = kmalloc(tcp_conn->data_size, GFP_KERNEL); - else - tcp_conn->data = (void*)__get_free_pages(GFP_KERNEL, - get_order(tcp_conn->data_size)); - if (!tcp_conn->data) - goto max_recv_dlenght_alloc_fail; return cls_conn; -max_recv_dlenght_alloc_fail: - kfree(tcp_conn); tcp_conn_alloc_fail: iscsi_conn_teardown(cls_conn); return NULL; @@ -1973,12 +1975,6 @@ iscsi_tcp_conn_destroy(struct iscsi_cls_conn *cls_conn) crypto_free_tfm(tcp_conn->data_rx_tfm); } - /* free conn->data, size = MaxRecvDataSegmentLength */ - if (tcp_conn->data_size <= PAGE_SIZE) - kfree(tcp_conn->data); - else - free_pages((unsigned long)tcp_conn->data, - get_order(tcp_conn->data_size)); kfree(tcp_conn); } @@ -2131,39 +2127,6 @@ iscsi_conn_set_param(struct iscsi_cls_conn *cls_conn, enum iscsi_param param, int value; switch(param) { - case ISCSI_PARAM_MAX_RECV_DLENGTH: { - char *saveptr = tcp_conn->data; - gfp_t flags = GFP_KERNEL; - - sscanf(buf, "%d", &value); - if (tcp_conn->data_size >= value) { - iscsi_set_param(cls_conn, param, buf, buflen); - break; - } - - spin_lock_bh(&session->lock); - if (conn->stop_stage == STOP_CONN_RECOVER) - flags = GFP_ATOMIC; - spin_unlock_bh(&session->lock); - - if (value <= PAGE_SIZE) - tcp_conn->data = kmalloc(value, flags); - else - tcp_conn->data = (void*)__get_free_pages(flags, - get_order(value)); - if (tcp_conn->data == NULL) { - tcp_conn->data = saveptr; - return -ENOMEM; - } - if (tcp_conn->data_size <= PAGE_SIZE) - kfree(saveptr); - else - free_pages((unsigned long)saveptr, - get_order(tcp_conn->data_size)); - iscsi_set_param(cls_conn, param, buf, buflen); - tcp_conn->data_size = value; - break; - } case ISCSI_PARAM_HDRDGST_EN: iscsi_set_param(cls_conn, param, buf, buflen); tcp_conn->hdr_size = sizeof(struct iscsi_hdr); diff --git a/drivers/scsi/iscsi_tcp.h b/drivers/scsi/iscsi_tcp.h index 808302832e68..6a4ee704e46e 100644 --- a/drivers/scsi/iscsi_tcp.h +++ b/drivers/scsi/iscsi_tcp.h @@ -78,8 +78,6 @@ struct iscsi_tcp_conn { char hdrext[4*sizeof(__u16) + sizeof(__u32)]; int data_copied; - char *data; /* data placeholder */ - int data_size; /* actual recv_dlength */ int stop_stage; /* conn_stop() flag: * * stop to recover, * * stop to terminate */ diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index c989bc6180b3..03b3dee49009 100644 --- a/drivers/scsi/libiscsi.c +++ b/drivers/scsi/libiscsi.c @@ -360,6 +360,10 @@ int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr, switch(opcode) { case ISCSI_OP_LOGOUT_RSP: + if (datalen) { + rc = ISCSI_ERR_PROTO; + break; + } conn->exp_statsn = be32_to_cpu(hdr->statsn) + 1; /* fall through */ case ISCSI_OP_LOGIN_RSP: @@ -383,7 +387,7 @@ int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr, iscsi_tmf_rsp(conn, hdr); break; case ISCSI_OP_NOOP_IN: - if (hdr->ttt != ISCSI_RESERVED_TAG) { + if (hdr->ttt != ISCSI_RESERVED_TAG || datalen) { rc = ISCSI_ERR_PROTO; break; } @@ -1405,7 +1409,7 @@ iscsi_conn_setup(struct iscsi_cls_session *cls_session, uint32_t conn_idx) data = kmalloc(DEFAULT_MAX_RECV_DATA_SEGMENT_LENGTH, GFP_KERNEL); if (!data) goto login_mtask_data_alloc_fail; - conn->login_mtask->data = data; + conn->login_mtask->data = conn->data = data; init_timer(&conn->tmabort_timer); mutex_init(&conn->xmitmutex); @@ -1477,7 +1481,7 @@ void iscsi_conn_teardown(struct iscsi_cls_conn *cls_conn) } spin_lock_bh(&session->lock); - kfree(conn->login_mtask->data); + kfree(conn->data); __kfifo_put(session->mgmtpool.queue, (void*)&conn->login_mtask, sizeof(void*)); list_del(&conn->item); diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h index 3f69f7e58f89..41904f611d12 100644 --- a/include/scsi/libiscsi.h +++ b/include/scsi/libiscsi.h @@ -135,6 +135,14 @@ struct iscsi_conn { int id; /* CID */ struct list_head item; /* maintains list of conns */ int c_stage; /* connection state */ + /* + * Preallocated buffer for pdus that have data but do not + * originate from scsi-ml. We never have two pdus using the + * buffer at the same time. It is only allocated to + * the default max recv size because the pdus we support + * should always fit in this buffer + */ + char *data; struct iscsi_mgmt_task *login_mtask; /* mtask used for login/text */ struct iscsi_mgmt_task *mtask; /* xmit mtask in progress */ struct iscsi_cmd_task *ctask; /* xmit ctask in progress */ From 40527afea1a3b18ee5754e17d6f807176e03f1f2 Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Mon, 24 Jul 2006 15:47:45 -0500 Subject: [PATCH 018/488] [SCSI] iscsi bugfixes: pass errors from complete_pdu to caller Must pass ISCSI_ERR values from the recv path and propogate them upwards. Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- drivers/scsi/iscsi_tcp.c | 2 +- drivers/scsi/libiscsi.c | 27 ++++++++++++++++++--------- 2 files changed, 19 insertions(+), 10 deletions(-) diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c index aa20adc79f02..33534f686434 100644 --- a/drivers/scsi/iscsi_tcp.c +++ b/drivers/scsi/iscsi_tcp.c @@ -885,7 +885,7 @@ more: } tcp_conn->in_progress = IN_PROGRESS_DATA_RECV; } else if (rc) { - iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED); + iscsi_conn_failure(conn, rc); return 0; } } diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index 03b3dee49009..c628c63c51a8 100644 --- a/drivers/scsi/libiscsi.c +++ b/drivers/scsi/libiscsi.c @@ -372,7 +372,8 @@ int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr, * login related PDU's exp_statsn is handled in * userspace */ - rc = iscsi_recv_pdu(conn->cls_conn, hdr, data, datalen); + if (iscsi_recv_pdu(conn->cls_conn, hdr, data, datalen)) + rc = ISCSI_ERR_CONN_FAILED; list_del(&mtask->running); if (conn->login_mtask != mtask) __kfifo_put(session->mgmtpool.queue, @@ -393,7 +394,8 @@ int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr, } conn->exp_statsn = be32_to_cpu(hdr->statsn) + 1; - rc = iscsi_recv_pdu(conn->cls_conn, hdr, data, datalen); + if (iscsi_recv_pdu(conn->cls_conn, hdr, data, datalen)) + rc = ISCSI_ERR_CONN_FAILED; list_del(&mtask->running); if (conn->login_mtask != mtask) __kfifo_put(session->mgmtpool.queue, @@ -406,14 +408,21 @@ int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr, } else if (itt == ISCSI_RESERVED_TAG) { switch(opcode) { case ISCSI_OP_NOOP_IN: - if (!datalen) { - rc = iscsi_check_assign_cmdsn(session, - (struct iscsi_nopin*)hdr); - if (!rc && hdr->ttt != ISCSI_RESERVED_TAG) - rc = iscsi_recv_pdu(conn->cls_conn, - hdr, NULL, 0); - } else + if (datalen) { rc = ISCSI_ERR_PROTO; + break; + } + + rc = iscsi_check_assign_cmdsn(session, + (struct iscsi_nopin*)hdr); + if (rc) + break; + + if (hdr->ttt == ISCSI_RESERVED_TAG) + break; + + if (iscsi_recv_pdu(conn->cls_conn, hdr, NULL, 0)) + rc = ISCSI_ERR_CONN_FAILED; break; case ISCSI_OP_REJECT: /* we need sth like iscsi_reject_rsp()*/ From f3ff0c3627df90aa28be98803b10289bb348e4e6 Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Mon, 24 Jul 2006 15:47:50 -0500 Subject: [PATCH 019/488] [SCSI] iscsi bugfixes: fix mem leaks in libiscsi We were leaking some strings. This patch just frees them. Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- drivers/scsi/libiscsi.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index c628c63c51a8..5884cd26d53a 100644 --- a/drivers/scsi/libiscsi.c +++ b/drivers/scsi/libiscsi.c @@ -1357,6 +1357,8 @@ void iscsi_session_teardown(struct iscsi_cls_session *cls_session) iscsi_pool_free(&session->mgmtpool, (void**)session->mgmt_cmds); iscsi_pool_free(&session->cmdpool, (void**)session->cmds); + kfree(session->targetname); + iscsi_destroy_session(cls_session); scsi_host_put(shost); module_put(owner); @@ -1491,6 +1493,7 @@ void iscsi_conn_teardown(struct iscsi_cls_conn *cls_conn) spin_lock_bh(&session->lock); kfree(conn->data); + kfree(conn->persistent_address); __kfifo_put(session->mgmtpool.queue, (void*)&conn->login_mtask, sizeof(void*)); list_del(&conn->item); From f4246b33c774bb4330eb6286beed6d3c9f4373c4 Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Mon, 24 Jul 2006 15:47:54 -0500 Subject: [PATCH 020/488] [SCSI] iscsi bugfixes: update and move version number The version info is useful for iscsi tcp, iser and qla4xxx so move to transport class. Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- drivers/scsi/iscsi_tcp.c | 6 +----- drivers/scsi/scsi_transport_iscsi.c | 5 +++++ 2 files changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c index 33534f686434..058f094f945a 100644 --- a/drivers/scsi/iscsi_tcp.c +++ b/drivers/scsi/iscsi_tcp.c @@ -43,13 +43,10 @@ #include "iscsi_tcp.h" -#define ISCSI_TCP_VERSION "1.0-595" - MODULE_AUTHOR("Dmitry Yusupov , " "Alex Aizman "); MODULE_DESCRIPTION("iSCSI/TCP data-path"); MODULE_LICENSE("GPL"); -MODULE_VERSION(ISCSI_TCP_VERSION); /* #define DEBUG_TCP */ #define DEBUG_ASSERT @@ -2317,8 +2314,7 @@ static void iscsi_tcp_session_destroy(struct iscsi_cls_session *cls_session) } static struct scsi_host_template iscsi_sht = { - .name = "iSCSI Initiator over TCP/IP, v" - ISCSI_TCP_VERSION, + .name = "iSCSI Initiator over TCP/IP", .queuecommand = iscsi_queuecommand, .change_queue_depth = iscsi_change_queue_depth, .can_queue = ISCSI_XMIT_CMDS_MAX - 1, diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c index 30a47c133091..2ecd14188574 100644 --- a/drivers/scsi/scsi_transport_iscsi.c +++ b/drivers/scsi/scsi_transport_iscsi.c @@ -34,6 +34,7 @@ #define ISCSI_SESSION_ATTRS 11 #define ISCSI_CONN_ATTRS 11 #define ISCSI_HOST_ATTRS 0 +#define ISCSI_TRANSPORT_VERSION "1.1-646" struct iscsi_internal { int daemon_pid; @@ -1613,6 +1614,9 @@ static __init int iscsi_transport_init(void) { int err; + printk(KERN_INFO "Loading iSCSI transport class v%s.", + ISCSI_TRANSPORT_VERSION); + err = class_register(&iscsi_transport_class); if (err) return err; @@ -1678,3 +1682,4 @@ MODULE_AUTHOR("Mike Christie , " "Alex Aizman "); MODULE_DESCRIPTION("iSCSI Transport Interface"); MODULE_LICENSE("GPL"); +MODULE_VERSION(ISCSI_TRANSPORT_VERSION); From fbf6080225a03aa2b3671acacebdf615f1d3f6ba Mon Sep 17 00:00:00 2001 From: "Ju, Seokmann" Date: Tue, 25 Jul 2006 08:44:48 -0600 Subject: [PATCH 021/488] [SCSI] megaraid_{mm,mbox}: 64-bit DMA capability checker This patch contains - a fix for 64-bit DMA capability check in megaraid_{mm,mbox} driver. - includes changes (going back to 32-bit DMA mask if 64-bit DMA mask failes) suggested by James with previous patch. - addition of SATA 150-4/6 as commented by Vasily Averin. With patch, the driver access PCIconfiguration space with dedicated offset to read a signature. If the signature read, it means that the controller has capability to handle 64-bit DMA. Without this patch, the driver used to blindly claim 64-bit DMA capability. The issue has been reported by Vasily Averin [vvs@sw.ru]. Thank you Vasily for the reporting. Signed-Off By: Seokmann Ju Signed-off-by: James Bottomley --- Documentation/scsi/ChangeLog.megaraid | 61 +++++++++++++++++++++++++++ drivers/scsi/megaraid/mega_common.h | 3 ++ drivers/scsi/megaraid/megaraid_mbox.c | 32 +++++++++++--- drivers/scsi/megaraid/megaraid_mbox.h | 4 +- 4 files changed, 93 insertions(+), 7 deletions(-) diff --git a/Documentation/scsi/ChangeLog.megaraid b/Documentation/scsi/ChangeLog.megaraid index c173806c91fa..fd8939e0045d 100644 --- a/Documentation/scsi/ChangeLog.megaraid +++ b/Documentation/scsi/ChangeLog.megaraid @@ -1,3 +1,64 @@ +Release Date : Fri May 19 09:31:45 EST 2006 - Seokmann Ju +Current Version : 2.20.4.9 (scsi module), 2.20.2.6 (cmm module) +Older Version : 2.20.4.8 (scsi module), 2.20.2.6 (cmm module) + +1. Fixed a bug in megaraid_init_mbox(). + Customer reported "garbage in file on x86_64 platform". + Root Cause: the driver registered controllers as 64-bit DMA capable + for those which are not support it. + Fix: Made change in the function inserting identification machanism + identifying 64-bit DMA capable controllers. + + > -----Original Message----- + > From: Vasily Averin [mailto:vvs@sw.ru] + > Sent: Thursday, May 04, 2006 2:49 PM + > To: linux-scsi@vger.kernel.org; Kolli, Neela; Mukker, Atul; + > Ju, Seokmann; Bagalkote, Sreenivas; + > James.Bottomley@SteelEye.com; devel@openvz.org + > Subject: megaraid_mbox: garbage in file + > + > Hello all, + > + > I've investigated customers claim on the unstable work of + > their node and found a + > strange effect: reading from some files leads to the + > "attempt to access beyond end of device" messages. + > + > I've checked filesystem, memory on the node, motherboard BIOS + > version, but it + > does not help and issue still has been reproduced by simple + > file reading. + > + > Reproducer is simple: + > + > echo 0xffffffff >/proc/sys/dev/scsi/logging_level ; + > cat /vz/private/101/root/etc/ld.so.cache >/tmp/ttt ; + > echo 0 >/proc/sys/dev/scsi/logging + > + > It leads to the following messages in dmesg + > + > sd_init_command: disk=sda, block=871769260, count=26 + > sda : block=871769260 + > sda : reading 26/26 512 byte blocks. + > scsi_add_timer: scmd: f79ed980, time: 7500, (c02b1420) + > sd 0:1:0:0: send 0xf79ed980 sd 0:1:0:0: + > command: Read (10): 28 00 33 f6 24 ac 00 00 1a 00 + > buffer = 0xf7cfb540, bufflen = 13312, done = 0xc0366b40, + > queuecommand 0xc0344010 + > leaving scsi_dispatch_cmnd() + > scsi_delete_timer: scmd: f79ed980, rtn: 1 + > sd 0:1:0:0: done 0xf79ed980 SUCCESS 0 sd 0:1:0:0: + > command: Read (10): 28 00 33 f6 24 ac 00 00 1a 00 + > scsi host busy 1 failed 0 + > sd 0:1:0:0: Notifying upper driver of completion (result 0) + > sd_rw_intr: sda: res=0x0 + > 26 sectors total, 13312 bytes done. + > use_sg is 4 + > attempt to access beyond end of device + > sda6: rw=0, want=1044134458, limit=951401367 + > Buffer I/O error on device sda6, logical block 522067228 + > attempt to access beyond end of device + Release Date : Mon Apr 11 12:27:22 EST 2006 - Seokmann Ju Current Version : 2.20.4.8 (scsi module), 2.20.2.6 (cmm module) Older Version : 2.20.4.7 (scsi module), 2.20.2.6 (cmm module) diff --git a/drivers/scsi/megaraid/mega_common.h b/drivers/scsi/megaraid/mega_common.h index 4675343228ad..12e38125b123 100644 --- a/drivers/scsi/megaraid/mega_common.h +++ b/drivers/scsi/megaraid/mega_common.h @@ -37,6 +37,9 @@ #define LSI_MAX_CHANNELS 16 #define LSI_MAX_LOGICAL_DRIVES_64LD (64+1) +#define HBA_SIGNATURE_64_BIT 0x299 +#define PCI_CONF_AMISIG64 0xa4 + /** * scb_t - scsi command control block diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c index 92715130ac09..e671af0b4f58 100644 --- a/drivers/scsi/megaraid/megaraid_mbox.c +++ b/drivers/scsi/megaraid/megaraid_mbox.c @@ -10,7 +10,7 @@ * 2 of the License, or (at your option) any later version. * * FILE : megaraid_mbox.c - * Version : v2.20.4.8 (Apr 11 2006) + * Version : v2.20.4.9 (Jul 16 2006) * * Authors: * Atul Mukker @@ -720,6 +720,7 @@ megaraid_init_mbox(adapter_t *adapter) struct pci_dev *pdev; mraid_device_t *raid_dev; int i; + uint32_t magic64; adapter->ito = MBOX_TIMEOUT; @@ -863,12 +864,33 @@ megaraid_init_mbox(adapter_t *adapter) // Set the DMA mask to 64-bit. All supported controllers as capable of // DMA in this range - if (pci_set_dma_mask(adapter->pdev, DMA_64BIT_MASK) != 0) { + pci_read_config_dword(adapter->pdev, PCI_CONF_AMISIG64, &magic64); - con_log(CL_ANN, (KERN_WARNING - "megaraid: could not set DMA mask for 64-bit.\n")); + if (((magic64 == HBA_SIGNATURE_64_BIT) && + ((adapter->pdev->subsystem_device != + PCI_SUBSYS_ID_MEGARAID_SATA_150_6) || + (adapter->pdev->subsystem_device != + PCI_SUBSYS_ID_MEGARAID_SATA_150_4))) || + (adapter->pdev->vendor == PCI_VENDOR_ID_LSI_LOGIC && + adapter->pdev->device == PCI_DEVICE_ID_VERDE) || + (adapter->pdev->vendor == PCI_VENDOR_ID_LSI_LOGIC && + adapter->pdev->device == PCI_DEVICE_ID_DOBSON) || + (adapter->pdev->vendor == PCI_VENDOR_ID_LSI_LOGIC && + adapter->pdev->device == PCI_DEVICE_ID_LINDSAY) || + (adapter->pdev->vendor == PCI_VENDOR_ID_DELL && + adapter->pdev->device == PCI_DEVICE_ID_PERC4_DI_EVERGLADES) || + (adapter->pdev->vendor == PCI_VENDOR_ID_DELL && + adapter->pdev->device == PCI_DEVICE_ID_PERC4E_DI_KOBUK)) { + if (pci_set_dma_mask(adapter->pdev, DMA_64BIT_MASK)) { + con_log(CL_ANN, (KERN_WARNING + "megaraid: DMA mask for 64-bit failed\n")); - goto out_free_sysfs_res; + if (pci_set_dma_mask (adapter->pdev, DMA_32BIT_MASK)) { + con_log(CL_ANN, (KERN_WARNING + "megaraid: 32-bit DMA mask failed\n")); + goto out_free_sysfs_res; + } + } } // setup tasklet for DPC diff --git a/drivers/scsi/megaraid/megaraid_mbox.h b/drivers/scsi/megaraid/megaraid_mbox.h index 868fb0ec93e7..2b5a3285f799 100644 --- a/drivers/scsi/megaraid/megaraid_mbox.h +++ b/drivers/scsi/megaraid/megaraid_mbox.h @@ -21,8 +21,8 @@ #include "megaraid_ioctl.h" -#define MEGARAID_VERSION "2.20.4.8" -#define MEGARAID_EXT_VERSION "(Release Date: Mon Apr 11 12:27:22 EST 2006)" +#define MEGARAID_VERSION "2.20.4.9" +#define MEGARAID_EXT_VERSION "(Release Date: Sun Jul 16 12:27:22 EST 2006)" /* From aa677bc7445147f663ebde69d248a30839bada76 Mon Sep 17 00:00:00 2001 From: "Ju, Seokmann" Date: Tue, 25 Jul 2006 08:44:58 -0600 Subject: [PATCH 022/488] [SCSI] megaraid_{mm,mbox}: a fix on INQUIRY with EVPD With this patch, driver will protect data corruption created by INQUIRY with EVPD request to megaraid controllers. As specified in the changelog, megaraid F/W already has fixed the issue and being under process of release. Meanwhile, driver will protect the system with this patch. Signed-Off By: Seokmann Ju Signed-off-by: James Bottomley --- Documentation/scsi/ChangeLog.megaraid | 7 +++++++ drivers/scsi/megaraid/mega_common.h | 3 +++ drivers/scsi/megaraid/megaraid_mbox.c | 8 ++++++++ 3 files changed, 18 insertions(+) diff --git a/Documentation/scsi/ChangeLog.megaraid b/Documentation/scsi/ChangeLog.megaraid index fd8939e0045d..0edb048b2ea4 100644 --- a/Documentation/scsi/ChangeLog.megaraid +++ b/Documentation/scsi/ChangeLog.megaraid @@ -59,6 +59,13 @@ Older Version : 2.20.4.8 (scsi module), 2.20.2.6 (cmm module) > Buffer I/O error on device sda6, logical block 522067228 > attempt to access beyond end of device +2. When INQUIRY with EVPD bit set issued to the MegaRAID controller, + system memory gets corrupted. + Root Cause: MegaRAID F/W handle the INQUIRY with EVPD bit set + incorrectly. + Fix: MegaRAID F/W has fixed the problem and being process of release, + soon. Meanwhile, driver will filter out the request. + Release Date : Mon Apr 11 12:27:22 EST 2006 - Seokmann Ju Current Version : 2.20.4.8 (scsi module), 2.20.2.6 (cmm module) Older Version : 2.20.4.7 (scsi module), 2.20.2.6 (cmm module) diff --git a/drivers/scsi/megaraid/mega_common.h b/drivers/scsi/megaraid/mega_common.h index 12e38125b123..8cd0bd1d0f7c 100644 --- a/drivers/scsi/megaraid/mega_common.h +++ b/drivers/scsi/megaraid/mega_common.h @@ -40,6 +40,9 @@ #define HBA_SIGNATURE_64_BIT 0x299 #define PCI_CONF_AMISIG64 0xa4 +#define MEGA_SCSI_INQ_EVPD 1 +#define MEGA_INVALID_FIELD_IN_CDB 0x24 + /** * scb_t - scsi command control block diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c index e671af0b4f58..cd982c877da0 100644 --- a/drivers/scsi/megaraid/megaraid_mbox.c +++ b/drivers/scsi/megaraid/megaraid_mbox.c @@ -1644,6 +1644,14 @@ megaraid_mbox_build_cmd(adapter_t *adapter, struct scsi_cmnd *scp, int *busy) rdev->last_disp |= (1L << SCP2CHANNEL(scp)); } + if (scp->cmnd[1] & MEGA_SCSI_INQ_EVPD) { + scp->sense_buffer[0] = 0x70; + scp->sense_buffer[2] = ILLEGAL_REQUEST; + scp->sense_buffer[12] = MEGA_INVALID_FIELD_IN_CDB; + scp->result = CHECK_CONDITION << 1; + return NULL; + } + /* Fall through */ case READ_CAPACITY: From 0b4972d59170e13ab0236e8a7148112052590c01 Mon Sep 17 00:00:00 2001 From: "Ju, Seokmann" Date: Tue, 25 Jul 2006 08:45:06 -0600 Subject: [PATCH 023/488] [SCSI] megaraid_{mm,mbox}: a fix on "kernel unaligned access address" issue There was an issue in the data structure defined by megaraid driver casuing "kernel unaligned access.." messages to be displayed during IOCTL on IA64 platform. The issue has been reported/fixed by Sakurai Hiroomi [sakurai_hiro@soft.fujitsu.com]. Signed-Off By: Seokmann Ju Signed-off-by: James Bottomley --- Documentation/scsi/ChangeLog.megaraid | 55 ++++++++++++++++++++++++++ drivers/scsi/megaraid/megaraid_ioctl.h | 4 ++ drivers/scsi/megaraid/megaraid_mm.c | 2 +- drivers/scsi/megaraid/megaraid_mm.h | 4 +- 4 files changed, 62 insertions(+), 3 deletions(-) diff --git a/Documentation/scsi/ChangeLog.megaraid b/Documentation/scsi/ChangeLog.megaraid index 0edb048b2ea4..a056bbe67c7e 100644 --- a/Documentation/scsi/ChangeLog.megaraid +++ b/Documentation/scsi/ChangeLog.megaraid @@ -66,6 +66,61 @@ Older Version : 2.20.4.8 (scsi module), 2.20.2.6 (cmm module) Fix: MegaRAID F/W has fixed the problem and being process of release, soon. Meanwhile, driver will filter out the request. +3. One of member in the data structure of the driver leads unaligne + issue on 64-bit platform. + Customer reporeted "kernel unaligned access addrss" issue when + application communicates with MegaRAID HBA driver. + Root Cause: in uioc_t structure, one of member had misaligned and it + led system to display the error message. + Fix: A patch submitted to community from following folk. + + > -----Original Message----- + > From: linux-scsi-owner@vger.kernel.org + > [mailto:linux-scsi-owner@vger.kernel.org] On Behalf Of Sakurai Hiroomi + > Sent: Wednesday, July 12, 2006 4:20 AM + > To: linux-scsi@vger.kernel.org; linux-kernel@vger.kernel.org + > Subject: Re: Help: strange messages from kernel on IA64 platform + > + > Hi, + > + > I saw same message. + > + > When GAM(Global Array Manager) is started, The following + > message output. + > kernel: kernel unaligned access to 0xe0000001fe1080d4, + > ip=0xa000000200053371 + > + > The uioc structure used by ioctl is defined by packed, + > the allignment of each member are disturbed. + > In a 64 bit structure, the allignment of member doesn't fit 64 bit + > boundary. this causes this messages. + > In a 32 bit structure, we don't see the message because the allinment + > of member fit 32 bit boundary even if packed is specified. + > + > patch + > I Add 32 bit dummy member to fit 64 bit boundary. I tested. + > We confirmed this patch fix the problem by IA64 server. + > + > ************************************************************** + > **************** + > --- linux-2.6.9/drivers/scsi/megaraid/megaraid_ioctl.h.orig + > 2006-04-03 17:13:03.000000000 +0900 + > +++ linux-2.6.9/drivers/scsi/megaraid/megaraid_ioctl.h + > 2006-04-03 17:14:09.000000000 +0900 + > @@ -132,6 +132,10 @@ + > /* Driver Data: */ + > void __user * user_data; + > uint32_t user_data_len; + > + + > + /* 64bit alignment */ + > + uint32_t pad_0xBC; + > + + > mraid_passthru_t __user *user_pthru; + > + > mraid_passthru_t *pthru32; + > ************************************************************** + > **************** + Release Date : Mon Apr 11 12:27:22 EST 2006 - Seokmann Ju Current Version : 2.20.4.8 (scsi module), 2.20.2.6 (cmm module) Older Version : 2.20.4.7 (scsi module), 2.20.2.6 (cmm module) diff --git a/drivers/scsi/megaraid/megaraid_ioctl.h b/drivers/scsi/megaraid/megaraid_ioctl.h index bdaee144a1c3..b8aa34202ec3 100644 --- a/drivers/scsi/megaraid/megaraid_ioctl.h +++ b/drivers/scsi/megaraid/megaraid_ioctl.h @@ -132,6 +132,10 @@ typedef struct uioc { /* Driver Data: */ void __user * user_data; uint32_t user_data_len; + + /* 64bit alignment */ + uint32_t pad_for_64bit_align; + mraid_passthru_t __user *user_pthru; mraid_passthru_t *pthru32; diff --git a/drivers/scsi/megaraid/megaraid_mm.c b/drivers/scsi/megaraid/megaraid_mm.c index e8f534fb336b..d85b9a8f1b8d 100644 --- a/drivers/scsi/megaraid/megaraid_mm.c +++ b/drivers/scsi/megaraid/megaraid_mm.c @@ -10,7 +10,7 @@ * 2 of the License, or (at your option) any later version. * * FILE : megaraid_mm.c - * Version : v2.20.2.6 (Mar 7 2005) + * Version : v2.20.2.7 (Jul 16 2006) * * Common management module */ diff --git a/drivers/scsi/megaraid/megaraid_mm.h b/drivers/scsi/megaraid/megaraid_mm.h index 3d9e67d6849d..c8762b2b8ed1 100644 --- a/drivers/scsi/megaraid/megaraid_mm.h +++ b/drivers/scsi/megaraid/megaraid_mm.h @@ -27,9 +27,9 @@ #include "megaraid_ioctl.h" -#define LSI_COMMON_MOD_VERSION "2.20.2.6" +#define LSI_COMMON_MOD_VERSION "2.20.2.7" #define LSI_COMMON_MOD_EXT_VERSION \ - "(Release Date: Mon Mar 7 00:01:03 EST 2005)" + "(Release Date: Sun Jul 16 00:01:03 EST 2006)" #define LSI_DBGLVL dbglevel From 0dfda7751e969902f7231fc547ca8c9e0fb9ee13 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 28 Jul 2006 09:01:36 +0200 Subject: [PATCH 024/488] [SCSI] fix simscsi On Thu, Jul 27, 2006 at 01:03:24AM -0700, Andrew Morton wrote: > arch/ia64/hp/sim/simscsi.c: In function `simscsi_sg_readwrite': > arch/ia64/hp/sim/simscsi.c:154: error: structure has no member named `buffer' > arch/ia64/hp/sim/simscsi.c: In function `simscsi_fillresult': > arch/ia64/hp/sim/simscsi.c:247: error: structure has no member named `buffer' > arch/ia64/hp/sim/simscsi.c: At top level: > arch/ia64/hp/sim/simscsi.c:87: warning: 'simscsi_setup' defined but not used Signed-off-by: James Bottomley --- arch/ia64/hp/sim/simscsi.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/ia64/hp/sim/simscsi.c b/arch/ia64/hp/sim/simscsi.c index a3fe97531134..8f0a16a79a67 100644 --- a/arch/ia64/hp/sim/simscsi.c +++ b/arch/ia64/hp/sim/simscsi.c @@ -151,7 +151,7 @@ static void simscsi_sg_readwrite (struct scsi_cmnd *sc, int mode, unsigned long offset) { int list_len = sc->use_sg; - struct scatterlist *sl = (struct scatterlist *)sc->buffer; + struct scatterlist *sl = (struct scatterlist *)sc->request_buffer; struct disk_stat stat; struct disk_req req; @@ -244,7 +244,8 @@ static void simscsi_fillresult(struct scsi_cmnd *sc, char *buf, unsigned len) if (scatterlen == 0) memcpy(sc->request_buffer, buf, len); - else for (slp = (struct scatterlist *)sc->buffer; scatterlen-- > 0 && len > 0; slp++) { + else for (slp = (struct scatterlist *)sc->request_buffer; + scatterlen-- > 0 && len > 0; slp++) { unsigned thislen = min(len, slp->length); memcpy(page_address(slp->page) + slp->offset, buf, thislen); From 782a6675119c76c071e74e2ddd98268f47770cba Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Thu, 3 Aug 2006 23:54:41 +1000 Subject: [PATCH 025/488] [PATCH] Send wireless netlink events with a clean slate Drivers expect to be able to call wireless_send_event in arbitrary contexts. On the other hand, netlink really doesn't like being invoked in an IRQ context. So we need to postpone the sending of netlink skb's to a tasklet. Signed-off-by: Herbert Xu Signed-off-by: John W. Linville --- net/core/wireless.c | 24 +++++++++++++++++++++++- 1 file changed, 23 insertions(+), 1 deletion(-) diff --git a/net/core/wireless.c b/net/core/wireless.c index d2bc72d318f7..de0bde4b51dd 100644 --- a/net/core/wireless.c +++ b/net/core/wireless.c @@ -82,6 +82,7 @@ #include /* for __init */ #include /* ARPHRD_ETHER */ #include /* compare_ether_addr */ +#include #include /* Pretty obvious */ #include /* New driver API */ @@ -1842,6 +1843,18 @@ int wireless_rtnetlink_set(struct net_device * dev, */ #ifdef WE_EVENT_RTNETLINK +static struct sk_buff_head wireless_nlevent_queue; + +static void wireless_nlevent_process(unsigned long data) +{ + struct sk_buff *skb; + + while ((skb = skb_dequeue(&wireless_nlevent_queue))) + netlink_broadcast(rtnl, skb, 0, RTNLGRP_LINK, GFP_ATOMIC); +} + +static DECLARE_TASKLET(wireless_nlevent_tasklet, wireless_nlevent_process, 0); + /* ---------------------------------------------------------------- */ /* * Fill a rtnetlink message with our event data. @@ -1904,8 +1917,17 @@ static inline void rtmsg_iwinfo(struct net_device * dev, return; } NETLINK_CB(skb).dst_group = RTNLGRP_LINK; - netlink_broadcast(rtnl, skb, 0, RTNLGRP_LINK, GFP_ATOMIC); + skb_queue_tail(&wireless_nlevent_queue, skb); + tasklet_schedule(&wireless_nlevent_tasklet); } + +static int __init wireless_nlevent_init(void) +{ + skb_queue_head_init(&wireless_nlevent_queue); + return 0; +} + +subsys_initcall(wireless_nlevent_init); #endif /* WE_EVENT_RTNETLINK */ /* ---------------------------------------------------------------- */ From c3cf30a989efec8144225517e0b2f82c955e3966 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Sat, 5 Aug 2006 03:59:11 +0900 Subject: [PATCH 026/488] [PATCH] libata: fix ata_port_detach() for old EH ports ata_prot_detach() did nothing for old EH ports and thus SCSI hosts associated with those ports are left dangling after they are detached leaving stale devices and causing oops eventually. Make ata_port_detach() remove SCSI hosts for old EH ports. Signed-off-by: Tejun Heo --- drivers/scsi/libata-core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c index 386e5f21e191..bca92dd3a454 100644 --- a/drivers/scsi/libata-core.c +++ b/drivers/scsi/libata-core.c @@ -5558,7 +5558,7 @@ void ata_port_detach(struct ata_port *ap) int i; if (!ap->ops->error_handler) - return; + goto skip_eh; /* tell EH we're leaving & flush EH */ spin_lock_irqsave(ap->lock, flags); @@ -5594,6 +5594,7 @@ void ata_port_detach(struct ata_port *ap) cancel_delayed_work(&ap->hotplug_task); flush_workqueue(ata_aux_wq); + skip_eh: /* remove the associated SCSI host */ scsi_remove_host(ap->host); } From f814b75f4ed2ed58cd7bc876a0a9406f984aac6d Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Sat, 5 Aug 2006 03:59:13 +0900 Subject: [PATCH 027/488] [PATCH] ata_piix: fix host_set private_data intialization To get host_set->private_data initialized reliably, all pinfos need to point to the same hpriv. Restore pinfo->private_data after pata pinfo assignment. Signed-off-by: Tejun Heo --- drivers/scsi/ata_piix.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/scsi/ata_piix.c b/drivers/scsi/ata_piix.c index 19745a31072b..298e4643b969 100644 --- a/drivers/scsi/ata_piix.c +++ b/drivers/scsi/ata_piix.c @@ -828,6 +828,7 @@ static void __devinit piix_init_sata_map(struct pci_dev *pdev, case IDE: WARN_ON((i & 1) || map[i + 1] != IDE); pinfo[i / 2] = piix_port_info[ich5_pata]; + pinfo[i / 2].private_data = hpriv; i++; printk(" IDE IDE"); break; From f31e945c50e47b7163c6018928aa93b66e8f22f0 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Sat, 5 Aug 2006 03:59:15 +0900 Subject: [PATCH 028/488] [PATCH] sata_sil24: don't set probe_ent->mmio_base sata_sil24 doesn't make use of probe_ent->mmio_base and setting this field causes the area to be released twice on detach. Don't set probe_ent->mmio_base. Signed-off-by: Tejun Heo --- drivers/scsi/sata_sil24.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/scsi/sata_sil24.c b/drivers/scsi/sata_sil24.c index 2e0f4a4076af..3f368c7d3ef9 100644 --- a/drivers/scsi/sata_sil24.c +++ b/drivers/scsi/sata_sil24.c @@ -1106,7 +1106,6 @@ static int sil24_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) probe_ent->irq = pdev->irq; probe_ent->irq_flags = IRQF_SHARED; - probe_ent->mmio_base = port_base; probe_ent->private_data = hpriv; hpriv->host_base = host_base; From 6543bc0777fadf129d8ee7ac82e0090fb0480403 Mon Sep 17 00:00:00 2001 From: Jeff Garzik Date: Sat, 5 Aug 2006 03:59:17 +0900 Subject: [PATCH 029/488] [PATCH] [libata] manually inline ata_host_remove() (tj: this is for the following ata_device_add() fix) Signed-off-by: Jeff Garzik Signed-off-by: Tejun Heo --- drivers/scsi/libata-core.c | 31 ++++++------------------------- 1 file changed, 6 insertions(+), 25 deletions(-) diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c index bca92dd3a454..509b04889983 100644 --- a/drivers/scsi/libata-core.c +++ b/drivers/scsi/libata-core.c @@ -5185,28 +5185,6 @@ void ata_host_stop (struct ata_host_set *host_set) iounmap(host_set->mmio_base); } - -/** - * ata_host_remove - Unregister SCSI host structure with upper layers - * @ap: Port to unregister - * @do_unregister: 1 if we fully unregister, 0 to just stop the port - * - * LOCKING: - * Inherited from caller. - */ - -static void ata_host_remove(struct ata_port *ap, unsigned int do_unregister) -{ - struct Scsi_Host *sh = ap->host; - - DPRINTK("ENTER\n"); - - if (do_unregister) - scsi_remove_host(sh); - - ap->ops->port_stop(ap); -} - /** * ata_dev_init - Initialize an ata_device structure * @dev: Device structure to initialize @@ -5532,8 +5510,11 @@ int ata_device_add(const struct ata_probe_ent *ent) err_out: for (i = 0; i < count; i++) { - ata_host_remove(host_set->ports[i], 1); - scsi_host_put(host_set->ports[i]->host); + struct ata_port *ap = host_set->ports[i]; + + scsi_remove_host(ap->host); + ap->ops->port_stop(ap); + scsi_host_put(ap->host); } err_free_ret: kfree(host_set); @@ -5663,7 +5644,7 @@ int ata_scsi_release(struct Scsi_Host *host) DPRINTK("ENTER\n"); ap->ops->port_disable(ap); - ata_host_remove(ap, 0); + ap->ops->port_stop(ap); DPRINTK("EXIT\n"); return 1; From 77f3f879387cc5fce6c7a4ca7777c586fe6291cd Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Sat, 5 Aug 2006 03:59:19 +0900 Subject: [PATCH 030/488] [PATCH] libata: fix ata_device_add() error path In the error path, ata_device_add() * dereferences null host_set->ports[] element. * calls scsi_remove_host() on not-yet-added shost. This patch fixes both bugs. The first problem was spotted and initial patch submitted by Dave Jones . The second problem was mentioned and fixed by Jeff Garzik in a larger cleanup patch. Cc: Dave Jones Cc: Jeff Garzik Signed-off-by: Tejun Heo --- drivers/scsi/libata-core.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c index 509b04889983..16fc2dd8f2f7 100644 --- a/drivers/scsi/libata-core.c +++ b/drivers/scsi/libata-core.c @@ -5511,10 +5511,10 @@ int ata_device_add(const struct ata_probe_ent *ent) err_out: for (i = 0; i < count; i++) { struct ata_port *ap = host_set->ports[i]; - - scsi_remove_host(ap->host); - ap->ops->port_stop(ap); - scsi_host_put(ap->host); + if (ap) { + ap->ops->port_stop(ap); + scsi_host_put(ap->host); + } } err_free_ret: kfree(host_set); From c723e08af18e60cda3bbc90e0d6fb688587aeb9f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Juha=20=5B=18=EA=F6l=E4?= Date: Sun, 6 Aug 2006 09:58:22 +0100 Subject: [PATCH 031/488] [ARM] 3744/1: MMC: mmcqd gets stuck when block queue is plugged MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Patch from Juha [êölä When the block queue is plugged, mq->req must be set to NULL. Otherwise mq->req might be left non-NULL, even though mmcqd is not processing a request, thus preventing the MMC queue thread from being woken up when new requests do arrive. Signed-off-by: Juha Yrjola Signed-off-by: Russell King --- drivers/mmc/mmc_queue.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/mmc_queue.c b/drivers/mmc/mmc_queue.c index 0b9682e9a357..74f8cdeeff0f 100644 --- a/drivers/mmc/mmc_queue.c +++ b/drivers/mmc/mmc_queue.c @@ -79,7 +79,8 @@ static int mmc_queue_thread(void *d) spin_lock_irq(q->queue_lock); set_current_state(TASK_INTERRUPTIBLE); if (!blk_queue_plugged(q)) - mq->req = req = elv_next_request(q); + req = elv_next_request(q); + mq->req = req; spin_unlock_irq(q->queue_lock); if (!req) { From b39239330858bc99b4d529923ec58e95ff6103f8 Mon Sep 17 00:00:00 2001 From: "George G. Davis" Date: Sun, 6 Aug 2006 09:59:25 +0100 Subject: [PATCH 032/488] [ARM] 3745/1: Add EXPORT_SYMBOL(rtc_next_alarm_time) to ARM rtctime.c Patch from George G. Davis Fix "WARNING: "rtc_next_alarm_time" [drivers/rtc/rtc-sa1100.ko] undefined!" Signed-off-by: George G. Davis Signed-off-by: Russell King --- arch/arm/common/rtctime.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/common/rtctime.c b/arch/arm/common/rtctime.c index 35c9a64ac14c..4e5445cfb0ea 100644 --- a/arch/arm/common/rtctime.c +++ b/arch/arm/common/rtctime.c @@ -68,6 +68,7 @@ void rtc_next_alarm_time(struct rtc_time *next, struct rtc_time *now, struct rtc rtc_time_to_tm(next_time, next); } } +EXPORT_SYMBOL(rtc_next_alarm_time); static inline int rtc_arm_read_time(struct rtc_ops *ops, struct rtc_time *tm) { From 4c756f4e954186630f6ee91a4da9a4b39fe3618d Mon Sep 17 00:00:00 2001 From: Martin Michlmayr Date: Sun, 6 Aug 2006 09:59:26 +0100 Subject: [PATCH 033/488] [ARM] 3747/1: Fix compilation error in mach-ixp4xx/gtwx5715-setup.c MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Patch from Martin Michlmayr Fix the following compilation error in arm/mach-ixp4xx/gtwx5715-setup: CC arch/arm/mach-ixp4xx/gtwx5715-setup.o arch/arm/mach-ixp4xx/gtwx5715-setup.c:110: error: expected identifier or '(' before ‘=’ token arch/arm/mach-ixp4xx/gtwx5715-setup.c:121: error: 'gtwx5715_flash_resource' undeclared here (not in a function) arch/arm/mach-ixp4xx/gtwx5715-setup.c: In function 'gtwx5715_init': arch/arm/mach-ixp4xx/gtwx5715-setup.c:133: error: 'flash_resource' undeclared (first use in this function) arch/arm/mach-ixp4xx/gtwx5715-setup.c:133: error: (Each undeclared identifier is reported only once arch/arm/mach-ixp4xx/gtwx5715-setup.c:133: error: for each function it appears in.) make[1]: *** [arch/arm/mach-ixp4xx/gtwx5715-setup.o] Error 1 Signed-off-by: Martin Michlmayr Signed-off-by: Russell King --- arch/arm/mach-ixp4xx/gtwx5715-setup.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/arch/arm/mach-ixp4xx/gtwx5715-setup.c b/arch/arm/mach-ixp4xx/gtwx5715-setup.c index 654e2eed81fb..30f1300e0e21 100644 --- a/arch/arm/mach-ixp4xx/gtwx5715-setup.c +++ b/arch/arm/mach-ixp4xx/gtwx5715-setup.c @@ -107,9 +107,9 @@ static struct flash_platform_data gtwx5715_flash_data = { .width = 2, }; -static struct gtw5715_flash_resource = { +static struct resource gtwx5715_flash_resource = { .flags = IORESOURCE_MEM, -} +}; static struct platform_device gtwx5715_flash = { .name = "IXP4XX-Flash", @@ -130,9 +130,6 @@ static void __init gtwx5715_init(void) { ixp4xx_sys_init(); - if (!flash_resource) - printk(KERN_ERR "Could not allocate flash resource\n"); - gtwx5715_flash_resource.start = IXP4XX_EXP_BUS_BASE(0); gtwx5715_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + SZ_8M - 1; From 8832157bff28e6559fd38fc18433f8bd8803340a Mon Sep 17 00:00:00 2001 From: Russell King Date: Sun, 6 Aug 2006 11:00:45 +0100 Subject: [PATCH 034/488] [ARM] Fix pci export warnings Remove duplicate PCI exports from ixp4xx machine class. Signed-off-by: Russell King --- arch/arm/mach-ixp4xx/common-pci.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/arch/arm/mach-ixp4xx/common-pci.c b/arch/arm/mach-ixp4xx/common-pci.c index 2d40fe1145f0..9562177b5fe1 100644 --- a/arch/arm/mach-ixp4xx/common-pci.c +++ b/arch/arm/mach-ixp4xx/common-pci.c @@ -532,8 +532,6 @@ pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask) return -EIO; } -EXPORT_SYMBOL(pci_set_dma_mask); -EXPORT_SYMBOL(pci_set_consistent_dma_mask); EXPORT_SYMBOL(ixp4xx_pci_read); EXPORT_SYMBOL(ixp4xx_pci_write); From 64ba88182962698a8cb75792372c1dddaef82989 Mon Sep 17 00:00:00 2001 From: James Smart Date: Wed, 2 Aug 2006 15:24:34 -0400 Subject: [PATCH 035/488] [SCSI] lpfc 8.1.7 : Add statistics reset callback for FC transport Signed-off-by: James Smart Signed-off-by: James Bottomley --- drivers/scsi/lpfc/lpfc_attr.c | 90 +++++++++++++++++++++++++++++++++-- drivers/scsi/lpfc/lpfc_sli.c | 3 ++ drivers/scsi/lpfc/lpfc_sli.h | 14 ++++++ 3 files changed, 103 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c index 5c68cdd8736f..762d623018f3 100644 --- a/drivers/scsi/lpfc/lpfc_attr.c +++ b/drivers/scsi/lpfc/lpfc_attr.c @@ -1210,8 +1210,10 @@ lpfc_get_stats(struct Scsi_Host *shost) struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata; struct lpfc_sli *psli = &phba->sli; struct fc_host_statistics *hs = &phba->link_stats; + struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets; LPFC_MBOXQ_t *pmboxq; MAILBOX_t *pmb; + unsigned long seconds; int rc = 0; pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); @@ -1272,22 +1274,103 @@ lpfc_get_stats(struct Scsi_Host *shost) hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt; hs->error_frames = pmb->un.varRdLnk.crcCnt; + hs->link_failure_count -= lso->link_failure_count; + hs->loss_of_sync_count -= lso->loss_of_sync_count; + hs->loss_of_signal_count -= lso->loss_of_signal_count; + hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count; + hs->invalid_tx_word_count -= lso->invalid_tx_word_count; + hs->invalid_crc_count -= lso->invalid_crc_count; + hs->error_frames -= lso->error_frames; + if (phba->fc_topology == TOPOLOGY_LOOP) { hs->lip_count = (phba->fc_eventTag >> 1); + hs->lip_count -= lso->link_events; hs->nos_count = -1; } else { hs->lip_count = -1; hs->nos_count = (phba->fc_eventTag >> 1); + hs->nos_count -= lso->link_events; } hs->dumped_frames = -1; -/* FIX ME */ - /*hs->SecondsSinceLastReset = (jiffies - lpfc_loadtime) / HZ;*/ + seconds = get_seconds(); + if (seconds < psli->stats_start) + hs->seconds_since_last_reset = seconds + + ((unsigned long)-1 - psli->stats_start); + else + hs->seconds_since_last_reset = seconds - psli->stats_start; return hs; } +static void +lpfc_reset_stats(struct Scsi_Host *shost) +{ + struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata; + struct lpfc_sli *psli = &phba->sli; + struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets; + LPFC_MBOXQ_t *pmboxq; + MAILBOX_t *pmb; + int rc = 0; + + pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); + if (!pmboxq) + return; + memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); + + pmb = &pmboxq->mb; + pmb->mbxCommand = MBX_READ_STATUS; + pmb->mbxOwner = OWN_HOST; + pmb->un.varWords[0] = 0x1; /* reset request */ + pmboxq->context1 = NULL; + + if ((phba->fc_flag & FC_OFFLINE_MODE) || + (!(psli->sli_flag & LPFC_SLI2_ACTIVE))) + rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); + else + rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); + + if (rc != MBX_SUCCESS) { + if (rc == MBX_TIMEOUT) + pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl; + else + mempool_free(pmboxq, phba->mbox_mem_pool); + return; + } + + memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); + pmb->mbxCommand = MBX_READ_LNK_STAT; + pmb->mbxOwner = OWN_HOST; + pmboxq->context1 = NULL; + + if ((phba->fc_flag & FC_OFFLINE_MODE) || + (!(psli->sli_flag & LPFC_SLI2_ACTIVE))) + rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); + else + rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); + + if (rc != MBX_SUCCESS) { + if (rc == MBX_TIMEOUT) + pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl; + else + mempool_free( pmboxq, phba->mbox_mem_pool); + return; + } + + lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; + lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; + lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; + lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; + lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; + lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt; + lso->error_frames = pmb->un.varRdLnk.crcCnt; + lso->link_events = (phba->fc_eventTag >> 1); + + psli->stats_start = get_seconds(); + + return; +} /* * The LPFC driver treats linkdown handling as target loss events so there @@ -1431,8 +1514,7 @@ struct fc_function_template lpfc_transport_functions = { */ .get_fc_host_stats = lpfc_get_stats, - - /* the LPFC driver doesn't support resetting stats yet */ + .reset_fc_host_stats = lpfc_reset_stats, .dd_fcrport_size = sizeof(struct lpfc_rport_data), .show_rport_maxframe_size = 1, diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index 350a625fa224..f453fccd67c8 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -1792,6 +1792,9 @@ lpfc_sli_brdrestart(struct lpfc_hba * phba) spin_unlock_irq(phba->host->host_lock); + memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets)); + psli->stats_start = get_seconds(); + if (skip_post) mdelay(100); else diff --git a/drivers/scsi/lpfc/lpfc_sli.h b/drivers/scsi/lpfc/lpfc_sli.h index d8ef0d2894d4..478e799c2bbf 100644 --- a/drivers/scsi/lpfc/lpfc_sli.h +++ b/drivers/scsi/lpfc/lpfc_sli.h @@ -172,6 +172,18 @@ struct lpfc_sli_stat { uint32_t mbox_busy; /* Mailbox cmd busy */ }; +/* Structure to store link status values when port stats are reset */ +struct lpfc_lnk_stat { + uint32_t link_failure_count; + uint32_t loss_of_sync_count; + uint32_t loss_of_signal_count; + uint32_t prim_seq_protocol_err_count; + uint32_t invalid_tx_word_count; + uint32_t invalid_crc_count; + uint32_t error_frames; + uint32_t link_events; +}; + /* Structure used to hold SLI information */ struct lpfc_sli { uint32_t num_rings; @@ -201,6 +213,8 @@ struct lpfc_sli { struct lpfc_iocbq ** iocbq_lookup; /* array to lookup IOCB by IOTAG */ size_t iocbq_lookup_len; /* current lengs of the array */ uint16_t last_iotag; /* last allocated IOTAG */ + unsigned long stats_start; /* in seconds */ + struct lpfc_lnk_stat lnk_stat_offsets; }; /* Given a pointer to the start of the ring, and the slot number of From a309a6b6e64b8147b7cfe7388237fb83834f58c9 Mon Sep 17 00:00:00 2001 From: James Smart Date: Tue, 1 Aug 2006 07:33:43 -0400 Subject: [PATCH 036/488] [SCSI] lpfc 8.1.7 : Fix failing firmware download due to mailbox delays needing to be longer Fix failing firmware download due to mailbox delays needing to be longer. Signed-off-by: James Smart Signed-off-by: James Bottomley --- drivers/scsi/lpfc/lpfc_attr.c | 3 ++- drivers/scsi/lpfc/lpfc_crtn.h | 1 + drivers/scsi/lpfc/lpfc_mbox.c | 16 ++++++++++++++++ drivers/scsi/lpfc/lpfc_sli.c | 11 +++++++---- drivers/scsi/lpfc/lpfc_sli.h | 6 ++++++ 5 files changed, 32 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c index 762d623018f3..4ccce1474f2d 100644 --- a/drivers/scsi/lpfc/lpfc_attr.c +++ b/drivers/scsi/lpfc/lpfc_attr.c @@ -1000,7 +1000,8 @@ sysfs_mbox_read(struct kobject *kobj, char *buf, loff_t off, size_t count) spin_unlock_irq(phba->host->host_lock); rc = lpfc_sli_issue_mbox_wait (phba, phba->sysfs_mbox.mbox, - phba->fc_ratov * 2); + lpfc_mbox_tmo_val(phba, + phba->sysfs_mbox.mbox->mb.mbxCommand) * HZ); spin_lock_irq(phba->host->host_lock); } diff --git a/drivers/scsi/lpfc/lpfc_crtn.h b/drivers/scsi/lpfc/lpfc_crtn.h index 517e9e4dd461..2a176467f71b 100644 --- a/drivers/scsi/lpfc/lpfc_crtn.h +++ b/drivers/scsi/lpfc/lpfc_crtn.h @@ -127,6 +127,7 @@ void lpfc_config_port(struct lpfc_hba *, LPFC_MBOXQ_t *); void lpfc_kill_board(struct lpfc_hba *, LPFC_MBOXQ_t *); void lpfc_mbox_put(struct lpfc_hba *, LPFC_MBOXQ_t *); LPFC_MBOXQ_t *lpfc_mbox_get(struct lpfc_hba *); +int lpfc_mbox_tmo_val(struct lpfc_hba *, int); int lpfc_mem_alloc(struct lpfc_hba *); void lpfc_mem_free(struct lpfc_hba *); diff --git a/drivers/scsi/lpfc/lpfc_mbox.c b/drivers/scsi/lpfc/lpfc_mbox.c index e42f22aaf71b..4d016c2a1b26 100644 --- a/drivers/scsi/lpfc/lpfc_mbox.c +++ b/drivers/scsi/lpfc/lpfc_mbox.c @@ -651,3 +651,19 @@ lpfc_mbox_get(struct lpfc_hba * phba) return mbq; } + +int +lpfc_mbox_tmo_val(struct lpfc_hba *phba, int cmd) +{ + switch (cmd) { + case MBX_WRITE_NV: /* 0x03 */ + case MBX_UPDATE_CFG: /* 0x1B */ + case MBX_DOWN_LOAD: /* 0x1C */ + case MBX_DEL_LD_ENTRY: /* 0x1D */ + case MBX_LOAD_AREA: /* 0x81 */ + case MBX_FLASH_WR_ULA: /* 0x98 */ + case MBX_LOAD_EXP_ROM: /* 0x9C */ + return LPFC_MBOX_TMO_FLASH_CMD; + } + return LPFC_MBOX_TMO; +} diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index f453fccd67c8..4dc2d584319e 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -2197,7 +2197,8 @@ lpfc_sli_issue_mbox(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmbox, uint32_t flag) return (MBX_NOT_FINISHED); } /* timeout active mbox command */ - mod_timer(&psli->mbox_tmo, jiffies + HZ * LPFC_MBOX_TMO); + mod_timer(&psli->mbox_tmo, (jiffies + + (HZ * lpfc_mbox_tmo_val(phba, mb->mbxCommand)))); } /* Mailbox cmd issue */ @@ -2257,7 +2258,6 @@ lpfc_sli_issue_mbox(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmbox, uint32_t flag) break; case MBX_POLL: - i = 0; psli->mbox_active = NULL; if (psli->sli_flag & LPFC_SLI2_ACTIVE) { /* First read mbox status word */ @@ -2271,11 +2271,14 @@ lpfc_sli_issue_mbox(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmbox, uint32_t flag) /* Read the HBA Host Attention Register */ ha_copy = readl(phba->HAregaddr); + i = lpfc_mbox_tmo_val(phba, mb->mbxCommand); + i *= 1000; /* Convert to ms */ + /* Wait for command to complete */ while (((word0 & OWN_CHIP) == OWN_CHIP) || (!(ha_copy & HA_MBATT) && (phba->hba_state > LPFC_WARM_START))) { - if (i++ >= 100) { + if (i-- <= 0) { psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; spin_unlock_irqrestore(phba->host->host_lock, drvr_flag); @@ -2293,7 +2296,7 @@ lpfc_sli_issue_mbox(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmbox, uint32_t flag) /* Can be in interrupt context, do not sleep */ /* (or might be called with interrupts disabled) */ - mdelay(i); + mdelay(1); spin_lock_irqsave(phba->host->host_lock, drvr_flag); diff --git a/drivers/scsi/lpfc/lpfc_sli.h b/drivers/scsi/lpfc/lpfc_sli.h index 478e799c2bbf..e26de6809358 100644 --- a/drivers/scsi/lpfc/lpfc_sli.h +++ b/drivers/scsi/lpfc/lpfc_sli.h @@ -225,3 +225,9 @@ struct lpfc_sli { #define LPFC_MBOX_TMO 30 /* Sec tmo for outstanding mbox command */ +#define LPFC_MBOX_TMO_FLASH_CMD 300 /* Sec tmo for outstanding FLASH write + * or erase cmds. This is especially + * long because of the potential of + * multiple flash erases that can be + * spawned. + */ From 1c067a42413c4f39c907443b8f5979cd4d82f0ff Mon Sep 17 00:00:00 2001 From: James Smart Date: Tue, 1 Aug 2006 07:33:52 -0400 Subject: [PATCH 037/488] [SCSI] lpfc 8.1.7 : Fix race condition between lpfc_sli_issue_mbox and lpfc_online Fix race condition between lpfc_sli_issue_mbox and lpfc_online Signed-off-by: James Smart Signed-off-by: James Bottomley --- drivers/scsi/lpfc/lpfc_sli.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index 4dc2d584319e..fbf108c9625c 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -1711,15 +1711,13 @@ lpfc_sli_brdreset(struct lpfc_hba * phba) phba->fc_myDID = 0; phba->fc_prevDID = 0; - psli->sli_flag = 0; - /* Turn off parity checking and serr during the physical reset */ pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value); pci_write_config_word(phba->pcidev, PCI_COMMAND, (cfg_value & ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR))); - psli->sli_flag &= ~LPFC_SLI2_ACTIVE; + psli->sli_flag &= ~(LPFC_SLI2_ACTIVE | LPFC_PROCESS_LA); /* Now toggle INITFF bit in the Host Control Register */ writel(HC_INITFF, phba->HCregaddr); mdelay(1); @@ -1905,6 +1903,9 @@ lpfc_sli_hba_setup(struct lpfc_hba * phba) } while (resetcount < 2 && !done) { + spin_lock_irq(phba->host->host_lock); + phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE; + spin_unlock_irq(phba->host->host_lock); phba->hba_state = LPFC_STATE_UNKNOWN; lpfc_sli_brdrestart(phba); msleep(2500); @@ -1912,6 +1913,9 @@ lpfc_sli_hba_setup(struct lpfc_hba * phba) if (rc) break; + spin_lock_irq(phba->host->host_lock); + phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; + spin_unlock_irq(phba->host->host_lock); resetcount++; /* Call pre CONFIG_PORT mailbox command initialization. A value of 0 From 8f6d98d2e05c38cb08fbda5e38e5f87d361c3cac Mon Sep 17 00:00:00 2001 From: James Smart Date: Tue, 1 Aug 2006 07:34:00 -0400 Subject: [PATCH 038/488] [SCSI] lpfc 8.1.7 : Short bug fixes Short bug fixes: - Fix iocbq list corruption due to missing list_del's in ct handling - Missing unlock in lpfc_sli_next_iotag() - Fix initialization of can_queue value - Differentiate sysfs mailbox errors with different codes. Signed-off-by: James Smart Signed-off-by: James Bottomley --- drivers/scsi/lpfc/lpfc_attr.c | 6 +++--- drivers/scsi/lpfc/lpfc_ct.c | 1 + drivers/scsi/lpfc/lpfc_init.c | 12 +++++++++++- drivers/scsi/lpfc/lpfc_sli.c | 5 +++-- 4 files changed, 18 insertions(+), 6 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c index 4ccce1474f2d..76f8bd53e230 100644 --- a/drivers/scsi/lpfc/lpfc_attr.c +++ b/drivers/scsi/lpfc/lpfc_attr.c @@ -884,7 +884,7 @@ sysfs_mbox_write(struct kobject *kobj, char *buf, loff_t off, size_t count) phba->sysfs_mbox.mbox == NULL ) { sysfs_mbox_idle(phba); spin_unlock_irq(host->host_lock); - return -EINVAL; + return -EAGAIN; } } @@ -1008,7 +1008,7 @@ sysfs_mbox_read(struct kobject *kobj, char *buf, loff_t off, size_t count) if (rc != MBX_SUCCESS) { sysfs_mbox_idle(phba); spin_unlock_irq(host->host_lock); - return -ENODEV; + return (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV; } phba->sysfs_mbox.state = SMBOX_READING; } @@ -1017,7 +1017,7 @@ sysfs_mbox_read(struct kobject *kobj, char *buf, loff_t off, size_t count) printk(KERN_WARNING "mbox_read: Bad State\n"); sysfs_mbox_idle(phba); spin_unlock_irq(host->host_lock); - return -EINVAL; + return -EAGAIN; } memcpy(buf, (uint8_t *) & phba->sysfs_mbox.mbox->mb + off, count); diff --git a/drivers/scsi/lpfc/lpfc_ct.c b/drivers/scsi/lpfc/lpfc_ct.c index b65ee57af53e..cab2d9dec088 100644 --- a/drivers/scsi/lpfc/lpfc_ct.c +++ b/drivers/scsi/lpfc/lpfc_ct.c @@ -131,6 +131,7 @@ lpfc_ct_unsol_event(struct lpfc_hba * phba, } ct_unsol_event_exit_piocbq: + list_del(&head); if (pmbuf) { list_for_each_entry_safe(matp, next_matp, &pmbuf->list, list) { lpfc_mbuf_free(phba, matp->virt, matp->phys); diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index ef47b824cbed..16dc8c82b5ce 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -1616,7 +1616,11 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) goto out_free_iocbq; } - /* We can rely on a queue depth attribute only after SLI HBA setup */ + /* + * Set initial can_queue value since 0 is no longer supported and + * scsi_add_host will fail. This will be adjusted later based on the + * max xri value determined in hba setup. + */ host->can_queue = phba->cfg_hba_queue_depth - 10; /* Tell the midlayer we support 16 byte commands */ @@ -1656,6 +1660,12 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) goto out_free_irq; } + /* + * hba setup may have changed the hba_queue_depth so we need to adjust + * the value of can_queue. + */ + host->can_queue = phba->cfg_hba_queue_depth - 10; + lpfc_discovery_wait(phba); if (phba->cfg_poll & DISABLE_FCP_RING_INT) { diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index fbf108c9625c..9802ee848f1d 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -320,7 +320,8 @@ lpfc_sli_next_iotag(struct lpfc_hba * phba, struct lpfc_iocbq * iocbq) kfree(old_arr); return iotag; } - } + } else + spin_unlock_irq(phba->host->host_lock); lpfc_printf_log(phba, KERN_ERR,LOG_SLI, "%d:0318 Failed to allocate IOTAG.last IOTAG is %d\n", @@ -1399,11 +1400,11 @@ lpfc_sli_handle_slow_ring_event(struct lpfc_hba * phba, next_iocb, &saveq->list, list) { + list_del(&rspiocbp->list); lpfc_sli_release_iocbq(phba, rspiocbp); } } - lpfc_sli_release_iocbq(phba, saveq); } } From dca9479be891eac33e53ab37769e18c3259646da Mon Sep 17 00:00:00 2001 From: James Smart Date: Tue, 1 Aug 2006 07:34:08 -0400 Subject: [PATCH 039/488] [SCSI] lpfc 8.1.7 : ID String and Message fixes ID String and Message fixes - Fix switch symbolic name registration to match cross-OS values - Replace printk's with more standard lpfc_printf_log calls - Make all lpfc_printf_log message numbers unique Signed-off-by: James Smart Signed-off-by: James Bottomley --- drivers/scsi/lpfc/lpfc_ct.c | 12 ++++-------- drivers/scsi/lpfc/lpfc_els.c | 6 +++--- drivers/scsi/lpfc/lpfc_hbadisc.c | 12 ++++++------ drivers/scsi/lpfc/lpfc_nportdisc.c | 2 +- drivers/scsi/lpfc/lpfc_scsi.c | 2 +- drivers/scsi/lpfc/lpfc_sli.c | 28 ++++++++++++++++------------ 6 files changed, 31 insertions(+), 31 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_ct.c b/drivers/scsi/lpfc/lpfc_ct.c index cab2d9dec088..bbb7310210b0 100644 --- a/drivers/scsi/lpfc/lpfc_ct.c +++ b/drivers/scsi/lpfc/lpfc_ct.c @@ -482,7 +482,7 @@ lpfc_cmpl_ct_cmd_gid_ft(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, if (CTrsp->CommandResponse.bits.CmdRsp == be16_to_cpu(SLI_CT_RESPONSE_FS_ACC)) { lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, - "%d:0239 NameServer Rsp " + "%d:0208 NameServer Rsp " "Data: x%x\n", phba->brd_no, phba->fc_flag); @@ -589,13 +589,9 @@ lpfc_get_hba_sym_node_name(struct lpfc_hba * phba, uint8_t * symbp) lpfc_decode_firmware_rev(phba, fwrev, 0); - if (phba->Port[0]) { - sprintf(symbp, "Emulex %s Port %s FV%s DV%s", phba->ModelName, - phba->Port, fwrev, lpfc_release_version); - } else { - sprintf(symbp, "Emulex %s FV%s DV%s", phba->ModelName, - fwrev, lpfc_release_version); - } + sprintf(symbp, "Emulex %s FV%s DV%s", phba->ModelName, + fwrev, lpfc_release_version); + return; } /* diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c index b89f6cb641e6..60f5cca0abe9 100644 --- a/drivers/scsi/lpfc/lpfc_els.c +++ b/drivers/scsi/lpfc/lpfc_els.c @@ -2839,7 +2839,7 @@ lpfc_els_rsp_rps_acc(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) /* Xmit ELS RPS ACC response tag */ lpfc_printf_log(phba, KERN_INFO, LOG_ELS, - "%d:0128 Xmit ELS RPS ACC response tag x%x " + "%d:0118 Xmit ELS RPS ACC response tag x%x " "Data: x%x x%x x%x x%x x%x\n", phba->brd_no, elsiocb->iocb.ulpIoTag, @@ -2948,7 +2948,7 @@ lpfc_els_rsp_rpl_acc(struct lpfc_hba * phba, uint16_t cmdsize, /* Xmit ELS RPL ACC response tag */ lpfc_printf_log(phba, KERN_INFO, LOG_ELS, - "%d:0128 Xmit ELS RPL ACC response tag x%x " + "%d:0120 Xmit ELS RPL ACC response tag x%x " "Data: x%x x%x x%x x%x x%x\n", phba->brd_no, elsiocb->iocb.ulpIoTag, @@ -3109,7 +3109,7 @@ lpfc_els_rcv_fan(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, struct lpfc_nodelist *ndlp, *next_ndlp; /* FAN received */ - lpfc_printf_log(phba, KERN_INFO, LOG_ELS, "%d:265 FAN received\n", + lpfc_printf_log(phba, KERN_INFO, LOG_ELS, "%d:0265 FAN received\n", phba->brd_no); icmd = &cmdiocb->iocb; diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c index 4d6cf990c4fc..1c3f2689155b 100644 --- a/drivers/scsi/lpfc/lpfc_hbadisc.c +++ b/drivers/scsi/lpfc/lpfc_hbadisc.c @@ -1782,7 +1782,7 @@ lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did) /* LOG change to REGLOGIN */ /* FIND node DID reglogin */ lpfc_printf_log(phba, KERN_INFO, LOG_NODE, - "%d:0931 FIND node DID reglogin" + "%d:0901 FIND node DID reglogin" " Data: x%p x%x x%x x%x\n", phba->brd_no, ndlp, ndlp->nlp_DID, @@ -1805,7 +1805,7 @@ lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did) /* LOG change to PRLI */ /* FIND node DID prli */ lpfc_printf_log(phba, KERN_INFO, LOG_NODE, - "%d:0931 FIND node DID prli " + "%d:0902 FIND node DID prli " "Data: x%p x%x x%x x%x\n", phba->brd_no, ndlp, ndlp->nlp_DID, @@ -1828,7 +1828,7 @@ lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did) /* LOG change to NPR */ /* FIND node DID npr */ lpfc_printf_log(phba, KERN_INFO, LOG_NODE, - "%d:0931 FIND node DID npr " + "%d:0903 FIND node DID npr " "Data: x%p x%x x%x x%x\n", phba->brd_no, ndlp, ndlp->nlp_DID, @@ -1851,7 +1851,7 @@ lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did) /* LOG change to UNUSED */ /* FIND node DID unused */ lpfc_printf_log(phba, KERN_INFO, LOG_NODE, - "%d:0931 FIND node DID unused " + "%d:0905 FIND node DID unused " "Data: x%p x%x x%x x%x\n", phba->brd_no, ndlp, ndlp->nlp_DID, @@ -2335,7 +2335,7 @@ lpfc_disc_timeout_handler(struct lpfc_hba *phba) initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (!initlinkmbox) { lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, - "%d:0226 Device Discovery " + "%d:0206 Device Discovery " "completion error\n", phba->brd_no); phba->hba_state = LPFC_HBA_ERROR; @@ -2365,7 +2365,7 @@ lpfc_disc_timeout_handler(struct lpfc_hba *phba) if (!clearlambox) { clrlaerr = 1; lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, - "%d:0226 Device Discovery " + "%d:0207 Device Discovery " "completion error\n", phba->brd_no); phba->hba_state = LPFC_HBA_ERROR; diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c index bd0b0e293d63..b38021a32c96 100644 --- a/drivers/scsi/lpfc/lpfc_nportdisc.c +++ b/drivers/scsi/lpfc/lpfc_nportdisc.c @@ -179,7 +179,7 @@ lpfc_els_abort(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, /* Abort outstanding I/O on NPort */ lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, - "%d:0201 Abort outstanding I/O on NPort x%x " + "%d:0205 Abort outstanding I/O on NPort x%x " "Data: x%x x%x x%x\n", phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index a760a44173df..0811c824e0e0 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -1104,7 +1104,7 @@ lpfc_reset_bus_handler(struct scsi_cmnd *cmnd) ndlp->rport->dd_data); if (ret != SUCCESS) { lpfc_printf_log(phba, KERN_ERR, LOG_FCP, - "%d:0713 Bus Reset on target %d failed\n", + "%d:0700 Bus Reset on target %d failed\n", phba->brd_no, i); err_count++; } diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index 9802ee848f1d..70f4d5a1348e 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -970,9 +970,11 @@ void lpfc_sli_poll_fcp_ring(struct lpfc_hba * phba) * resources need to be recovered. */ if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) { - printk(KERN_INFO "%s: IOCB cmd 0x%x processed." - " Skipping completion\n", __FUNCTION__, - irsp->ulpCommand); + lpfc_printf_log(phba, KERN_INFO, LOG_SLI, + "%d:0314 IOCB cmd 0x%x" + " processed. Skipping" + " completion", phba->brd_no, + irsp->ulpCommand); break; } @@ -1105,7 +1107,7 @@ lpfc_sli_handle_fast_ring_event(struct lpfc_hba * phba, if (unlikely(irsp->ulpStatus)) { /* Rsp ring error: IOCB */ lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, - "%d:0326 Rsp Ring %d error: IOCB Data: " + "%d:0336 Rsp Ring %d error: IOCB Data: " "x%x x%x x%x x%x x%x x%x x%x x%x\n", phba->brd_no, pring->ringno, irsp->un.ulpWord[0], irsp->un.ulpWord[1], @@ -1123,9 +1125,11 @@ lpfc_sli_handle_fast_ring_event(struct lpfc_hba * phba, * resources need to be recovered. */ if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) { - printk(KERN_INFO "%s: IOCB cmd 0x%x processed. " - "Skipping completion\n", __FUNCTION__, - irsp->ulpCommand); + lpfc_printf_log(phba, KERN_INFO, LOG_SLI, + "%d:0333 IOCB cmd 0x%x" + " processed. Skipping" + " completion\n", phba->brd_no, + irsp->ulpCommand); break; } @@ -1156,7 +1160,7 @@ lpfc_sli_handle_fast_ring_event(struct lpfc_hba * phba, } else { /* Unknown IOCB command */ lpfc_printf_log(phba, KERN_ERR, LOG_SLI, - "%d:0321 Unknown IOCB command " + "%d:0334 Unknown IOCB command " "Data: x%x, x%x x%x x%x x%x\n", phba->brd_no, type, irsp->ulpCommand, irsp->ulpStatus, irsp->ulpIoTag, @@ -1239,7 +1243,7 @@ lpfc_sli_handle_slow_ring_event(struct lpfc_hba * phba, lpfc_printf_log(phba, KERN_ERR, LOG_SLI, - "%d:0312 Ring %d handler: portRspPut %d " + "%d:0303 Ring %d handler: portRspPut %d " "is bigger then rsp ring %d\n", phba->brd_no, pring->ringno, portRspPut, portRspMax); @@ -1384,7 +1388,7 @@ lpfc_sli_handle_slow_ring_event(struct lpfc_hba * phba, lpfc_printf_log(phba, KERN_ERR, LOG_SLI, - "%d:0321 Unknown IOCB command " + "%d:0335 Unknown IOCB command " "Data: x%x x%x x%x x%x\n", phba->brd_no, irsp->ulpCommand, @@ -1759,7 +1763,7 @@ lpfc_sli_brdrestart(struct lpfc_hba * phba) /* Restart HBA */ lpfc_printf_log(phba, KERN_INFO, LOG_SLI, - "%d:0328 Restart HBA Data: x%x x%x\n", phba->brd_no, + "%d:0337 Restart HBA Data: x%x x%x\n", phba->brd_no, phba->hba_state, psli->sli_flag); word0 = 0; @@ -3016,7 +3020,7 @@ lpfc_sli_issue_iocb_wait(struct lpfc_hba * phba, if (timeleft == 0) { lpfc_printf_log(phba, KERN_ERR, LOG_SLI, - "%d:0329 IOCB wait timeout error - no " + "%d:0338 IOCB wait timeout error - no " "wake response Data x%x\n", phba->brd_no, timeout); retval = IOCB_TIMEDOUT; From 416780d3a7836a99568c6728830ced592a7a22e3 Mon Sep 17 00:00:00 2001 From: James Smart Date: Tue, 1 Aug 2006 07:34:16 -0400 Subject: [PATCH 040/488] [SCSI] lpfc 8.1.7 : Change version number to 8.1.8 Change version number to 8.1.8 Signed-off-by: James Smart Signed-off-by: James Bottomley --- drivers/scsi/lpfc/lpfc_version.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/lpfc/lpfc_version.h b/drivers/scsi/lpfc/lpfc_version.h index 10e89c6ae823..c7963f91d0a7 100644 --- a/drivers/scsi/lpfc/lpfc_version.h +++ b/drivers/scsi/lpfc/lpfc_version.h @@ -18,7 +18,7 @@ * included with this package. * *******************************************************************/ -#define LPFC_DRIVER_VERSION "8.1.7" +#define LPFC_DRIVER_VERSION "8.1.8" #define LPFC_DRIVER_NAME "lpfc" From b797b6de9d4d8d085169a507c54b18e74dbe4f21 Mon Sep 17 00:00:00 2001 From: Shyam Sundar Date: Tue, 1 Aug 2006 13:48:13 -0700 Subject: [PATCH 041/488] [SCSI] qla2xxx: Correct endianess problem while issuing a Marker IOCB on ISP24xx. Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_iocb.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c index 2b60a27eff0b..c5b3c610a32a 100644 --- a/drivers/scsi/qla2xxx/qla_iocb.c +++ b/drivers/scsi/qla2xxx/qla_iocb.c @@ -471,6 +471,7 @@ __qla2x00_marker(scsi_qla_host_t *ha, uint16_t loop_id, uint16_t lun, mrk24->nport_handle = cpu_to_le16(loop_id); mrk24->lun[1] = LSB(lun); mrk24->lun[2] = MSB(lun); + host_to_fcp_swap(mrk24->lun, sizeof(mrk24->lun)); } else { SET_TARGET_ID(ha, mrk->target, loop_id); mrk->lun = cpu_to_le16(lun); From 45ebeb560570fd7ebae29a4105b81874063d5425 Mon Sep 17 00:00:00 2001 From: Andrew Vasquez Date: Tue, 1 Aug 2006 13:48:14 -0700 Subject: [PATCH 042/488] [SCSI] qla2xxx: Log Trace/Diagonostic asynchronous events. Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_def.h | 1 + drivers/scsi/qla2xxx/qla_isr.c | 5 +++++ 2 files changed, 6 insertions(+) diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index 139ea0e27fd7..0930260aec2c 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -487,6 +487,7 @@ typedef struct { #define MBA_IP_RCV_BUFFER_EMPTY 0x8026 /* IP receive buffer queue empty. */ #define MBA_IP_HDR_DATA_SPLIT 0x8027 /* IP header/data splitting feature */ /* used. */ +#define MBA_TRACE_NOTIFICATION 0x8028 /* Trace/Diagnostic notification. */ #define MBA_POINT_TO_POINT 0x8030 /* Point to point mode. */ #define MBA_CMPLT_1_16BIT 0x8031 /* Completion 1 16bit IOSB. */ #define MBA_CMPLT_2_16BIT 0x8032 /* Completion 2 16bit IOSB. */ diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index 795bf15b1b8f..de0613135f70 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c @@ -587,6 +587,11 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint16_t *mb) DEBUG2(printk("scsi(%ld): Discard RND Frame -- %04x %04x " "%04x.\n", ha->host_no, mb[1], mb[2], mb[3])); break; + + case MBA_TRACE_NOTIFICATION: + DEBUG2(printk("scsi(%ld): Trace Notification -- %04x %04x.\n", + ha->host_no, mb[1], mb[2])); + break; } } From b0328beed0786b07d0102ed59cbf0b54ad8f726b Mon Sep 17 00:00:00 2001 From: Vladislav Bolkhovitin Date: Tue, 1 Aug 2006 13:48:15 -0700 Subject: [PATCH 043/488] [SCSI] qla2xxx: Fix to allow to reset devices using sg interface (sg_reset). Currently it is impossible to reset provided by Qlogic QLA2xxx driver SCSI devices externally using corresponding sg devices, particularly via sg_reset utility, because qla2xxx driver in qla2xxx_eh_device_reset() function checks if the input scsi_cmnd has its private data (CMD_SP()) attached. Then the found pointer isn't used anywhere inside of qla2xxx_eh_device_reset(). If the RESET request comes from sg device, it doesn't have such private data. The attached patch removes check for non-NULL CMD_SP() from qla2xxx_eh_device_reset(), hence allows to reset QLA2xxx's devices using corresponding sg devices. AV: change applies to bus/host reset handlers as well. Signed-off-by: Vladislav Bolkhovitin Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_os.c | 12 +++--------- 1 file changed, 3 insertions(+), 9 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index ec7ebb6037e6..1e2b95bac830 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -744,7 +744,6 @@ qla2xxx_eh_device_reset(struct scsi_cmnd *cmd) { scsi_qla_host_t *ha = to_qla_host(cmd->device->host); fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata; - srb_t *sp; int ret; unsigned int id, lun; unsigned long serial; @@ -755,8 +754,7 @@ qla2xxx_eh_device_reset(struct scsi_cmnd *cmd) lun = cmd->device->lun; serial = cmd->serial_number; - sp = (srb_t *) CMD_SP(cmd); - if (!sp || !fcport) + if (!fcport) return ret; qla_printk(KERN_INFO, ha, @@ -875,7 +873,6 @@ qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd) { scsi_qla_host_t *ha = to_qla_host(cmd->device->host); fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata; - srb_t *sp; int ret; unsigned int id, lun; unsigned long serial; @@ -886,8 +883,7 @@ qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd) lun = cmd->device->lun; serial = cmd->serial_number; - sp = (srb_t *) CMD_SP(cmd); - if (!sp || !fcport) + if (!fcport) return ret; qla_printk(KERN_INFO, ha, @@ -936,7 +932,6 @@ qla2xxx_eh_host_reset(struct scsi_cmnd *cmd) { scsi_qla_host_t *ha = to_qla_host(cmd->device->host); fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata; - srb_t *sp; int ret; unsigned int id, lun; unsigned long serial; @@ -947,8 +942,7 @@ qla2xxx_eh_host_reset(struct scsi_cmnd *cmd) lun = cmd->device->lun; serial = cmd->serial_number; - sp = (srb_t *) CMD_SP(cmd); - if (!sp || !fcport) + if (!fcport) return ret; qla_printk(KERN_INFO, ha, From c2602c48b5ebde55b418ba252737bf60caa4bab0 Mon Sep 17 00:00:00 2001 From: Andrew Vasquez Date: Tue, 1 Aug 2006 13:48:16 -0700 Subject: [PATCH 044/488] [SCSI] qla2xxx: Update version number to 8.01.05-k4. Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_version.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/qla2xxx/qla_version.h b/drivers/scsi/qla2xxx/qla_version.h index d2d683440659..f5826bf04a24 100644 --- a/drivers/scsi/qla2xxx/qla_version.h +++ b/drivers/scsi/qla2xxx/qla_version.h @@ -7,7 +7,7 @@ /* * Driver version */ -#define QLA2XXX_VERSION "8.01.05-k3" +#define QLA2XXX_VERSION "8.01.05-k4" #define QLA_DRIVER_MAJOR_VER 8 #define QLA_DRIVER_MINOR_VER 1 From fea9d6c7bcd8ff1d60ff74f27ba483b3820b18a3 Mon Sep 17 00:00:00 2001 From: Volker Sameske Date: Wed, 2 Aug 2006 11:05:16 +0200 Subject: [PATCH 045/488] [SCSI] zfcp: improve management of request IDs Improve request handling. Use hash table to manage request IDs. Signed-off-by: Volker Sameske Signed-off-by: Andreas Herrmann Signed-off-by: James Bottomley --- drivers/s390/scsi/zfcp_aux.c | 120 +++++++++++++++++++++++++++++--- drivers/s390/scsi/zfcp_ccw.c | 5 ++ drivers/s390/scsi/zfcp_def.h | 11 +-- drivers/s390/scsi/zfcp_erp.c | 16 ++--- drivers/s390/scsi/zfcp_ext.h | 6 +- drivers/s390/scsi/zfcp_fsf.c | 126 ++++++++++++++++++---------------- drivers/s390/scsi/zfcp_qdio.c | 79 +++++++++------------ 7 files changed, 233 insertions(+), 130 deletions(-) diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c index 9cd789b8acd4..adc9d8f2c28f 100644 --- a/drivers/s390/scsi/zfcp_aux.c +++ b/drivers/s390/scsi/zfcp_aux.c @@ -112,6 +112,105 @@ _zfcp_hex_dump(char *addr, int count) printk("\n"); } + +/****************************************************************/ +/****** Functions to handle the request ID hash table ********/ +/****************************************************************/ + +#define ZFCP_LOG_AREA ZFCP_LOG_AREA_FSF + +static int zfcp_reqlist_init(struct zfcp_adapter *adapter) +{ + int i; + + adapter->req_list = kcalloc(REQUEST_LIST_SIZE, sizeof(struct list_head), + GFP_KERNEL); + + if (!adapter->req_list) + return -ENOMEM; + + for (i=0; ireq_list[i]); + + return 0; +} + +static void zfcp_reqlist_free(struct zfcp_adapter *adapter) +{ + struct zfcp_fsf_req *request, *tmp; + unsigned int i; + + for (i=0; ireq_list[i])) + continue; + + list_for_each_entry_safe(request, tmp, + &adapter->req_list[i], list) + list_del(&request->list); + } + + kfree(adapter->req_list); +} + +void zfcp_reqlist_add(struct zfcp_adapter *adapter, + struct zfcp_fsf_req *fsf_req) +{ + unsigned int i; + + i = fsf_req->req_id % REQUEST_LIST_SIZE; + list_add_tail(&fsf_req->list, &adapter->req_list[i]); +} + +void zfcp_reqlist_remove(struct zfcp_adapter *adapter, unsigned long req_id) +{ + struct zfcp_fsf_req *request, *tmp; + unsigned int i, counter; + u64 dbg_tmp[2]; + + i = req_id % REQUEST_LIST_SIZE; + BUG_ON(list_empty(&adapter->req_list[i])); + + counter = 0; + list_for_each_entry_safe(request, tmp, &adapter->req_list[i], list) { + if (request->req_id == req_id) { + dbg_tmp[0] = (u64) atomic_read(&adapter->reqs_active); + dbg_tmp[1] = (u64) counter; + debug_event(adapter->erp_dbf, 4, (void *) dbg_tmp, 16); + list_del(&request->list); + break; + } + counter++; + } +} + +struct zfcp_fsf_req *zfcp_reqlist_ismember(struct zfcp_adapter *adapter, + unsigned long req_id) +{ + struct zfcp_fsf_req *request, *tmp; + unsigned int i; + + i = req_id % REQUEST_LIST_SIZE; + + list_for_each_entry_safe(request, tmp, &adapter->req_list[i], list) + if (request->req_id == req_id) + return request; + + return NULL; +} + +int zfcp_reqlist_isempty(struct zfcp_adapter *adapter) +{ + unsigned int i; + + for (i=0; ireq_list[i])) + return 0; + + return 1; +} + +#undef ZFCP_LOG_AREA + /****************************************************************/ /************** Uncategorised Functions *************************/ /****************************************************************/ @@ -961,8 +1060,12 @@ zfcp_adapter_enqueue(struct ccw_device *ccw_device) INIT_LIST_HEAD(&adapter->port_remove_lh); /* initialize list of fsf requests */ - spin_lock_init(&adapter->fsf_req_list_lock); - INIT_LIST_HEAD(&adapter->fsf_req_list_head); + spin_lock_init(&adapter->req_list_lock); + retval = zfcp_reqlist_init(adapter); + if (retval) { + ZFCP_LOG_INFO("request list initialization failed\n"); + goto failed_low_mem_buffers; + } /* initialize debug locks */ @@ -1041,8 +1144,6 @@ zfcp_adapter_enqueue(struct ccw_device *ccw_device) * !0 - struct zfcp_adapter data structure could not be removed * (e.g. still used) * locks: adapter list write lock is assumed to be held by caller - * adapter->fsf_req_list_lock is taken and released within this - * function and must not be held on entry */ void zfcp_adapter_dequeue(struct zfcp_adapter *adapter) @@ -1054,14 +1155,14 @@ zfcp_adapter_dequeue(struct zfcp_adapter *adapter) zfcp_sysfs_adapter_remove_files(&adapter->ccw_device->dev); dev_set_drvdata(&adapter->ccw_device->dev, NULL); /* sanity check: no pending FSF requests */ - spin_lock_irqsave(&adapter->fsf_req_list_lock, flags); - retval = !list_empty(&adapter->fsf_req_list_head); - spin_unlock_irqrestore(&adapter->fsf_req_list_lock, flags); - if (retval) { + spin_lock_irqsave(&adapter->req_list_lock, flags); + retval = zfcp_reqlist_isempty(adapter); + spin_unlock_irqrestore(&adapter->req_list_lock, flags); + if (!retval) { ZFCP_LOG_NORMAL("bug: adapter %s (%p) still in use, " "%i requests outstanding\n", zfcp_get_busid_by_adapter(adapter), adapter, - atomic_read(&adapter->fsf_reqs_active)); + atomic_read(&adapter->reqs_active)); retval = -EBUSY; goto out; } @@ -1087,6 +1188,7 @@ zfcp_adapter_dequeue(struct zfcp_adapter *adapter) zfcp_free_low_mem_buffers(adapter); /* free memory of adapter data structure and queues */ zfcp_qdio_free_queues(adapter); + zfcp_reqlist_free(adapter); kfree(adapter->fc_stats); kfree(adapter->stats_reset_data); ZFCP_LOG_TRACE("freeing adapter structure\n"); diff --git a/drivers/s390/scsi/zfcp_ccw.c b/drivers/s390/scsi/zfcp_ccw.c index 57d8e4bfb8d9..fdabadeaa9ee 100644 --- a/drivers/s390/scsi/zfcp_ccw.c +++ b/drivers/s390/scsi/zfcp_ccw.c @@ -164,6 +164,11 @@ zfcp_ccw_set_online(struct ccw_device *ccw_device) retval = zfcp_adapter_scsi_register(adapter); if (retval) goto out_scsi_register; + + /* initialize request counter */ + BUG_ON(!zfcp_reqlist_isempty(adapter)); + adapter->req_no = 0; + zfcp_erp_modify_adapter_status(adapter, ZFCP_STATUS_COMMON_RUNNING, ZFCP_SET); zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED); diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h index 2df512a18e2c..72293f3870b5 100644 --- a/drivers/s390/scsi/zfcp_def.h +++ b/drivers/s390/scsi/zfcp_def.h @@ -886,11 +886,11 @@ struct zfcp_adapter { struct list_head port_remove_lh; /* head of ports to be removed */ u32 ports; /* number of remote ports */ - struct timer_list scsi_er_timer; /* SCSI err recovery watch */ - struct list_head fsf_req_list_head; /* head of FSF req list */ - spinlock_t fsf_req_list_lock; /* lock for ops on list of - FSF requests */ - atomic_t fsf_reqs_active; /* # active FSF reqs */ + struct timer_list scsi_er_timer; /* SCSI err recovery watch */ + atomic_t reqs_active; /* # active FSF reqs */ + unsigned long req_no; /* unique FSF req number */ + struct list_head *req_list; /* list of pending reqs */ + spinlock_t req_list_lock; /* request list lock */ struct zfcp_qdio_queue request_queue; /* request queue */ u32 fsf_req_seq_no; /* FSF cmnd seq number */ wait_queue_head_t request_wq; /* can be used to wait for @@ -986,6 +986,7 @@ struct zfcp_unit { /* FSF request */ struct zfcp_fsf_req { struct list_head list; /* list of FSF requests */ + unsigned long req_id; /* unique request ID */ struct zfcp_adapter *adapter; /* adapter request belongs to */ u8 sbal_number; /* nr of SBALs free for use */ u8 sbal_first; /* first SBAL for this request */ diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c index 8ec8da0beaa8..f74412bd9d6a 100644 --- a/drivers/s390/scsi/zfcp_erp.c +++ b/drivers/s390/scsi/zfcp_erp.c @@ -848,18 +848,16 @@ zfcp_erp_strategy_check_fsfreq(struct zfcp_erp_action *erp_action) struct zfcp_adapter *adapter = erp_action->adapter; if (erp_action->fsf_req) { - /* take lock to ensure that request is not being deleted meanwhile */ - spin_lock(&adapter->fsf_req_list_lock); - /* check whether fsf req does still exist */ - list_for_each_entry(fsf_req, &adapter->fsf_req_list_head, list) - if (fsf_req == erp_action->fsf_req) - break; - if (fsf_req && (fsf_req->erp_action == erp_action)) { + /* take lock to ensure that request is not deleted meanwhile */ + spin_lock(&adapter->req_list_lock); + if ((!zfcp_reqlist_ismember(adapter, + erp_action->fsf_req->req_id)) && + (fsf_req->erp_action == erp_action)) { /* fsf_req still exists */ debug_text_event(adapter->erp_dbf, 3, "a_ca_req"); debug_event(adapter->erp_dbf, 3, &fsf_req, sizeof (unsigned long)); - /* dismiss fsf_req of timed out or dismissed erp_action */ + /* dismiss fsf_req of timed out/dismissed erp_action */ if (erp_action->status & (ZFCP_STATUS_ERP_DISMISSED | ZFCP_STATUS_ERP_TIMEDOUT)) { debug_text_event(adapter->erp_dbf, 3, @@ -892,7 +890,7 @@ zfcp_erp_strategy_check_fsfreq(struct zfcp_erp_action *erp_action) */ erp_action->fsf_req = NULL; } - spin_unlock(&adapter->fsf_req_list_lock); + spin_unlock(&adapter->req_list_lock); } else debug_text_event(adapter->erp_dbf, 3, "a_ca_noreq"); diff --git a/drivers/s390/scsi/zfcp_ext.h b/drivers/s390/scsi/zfcp_ext.h index d02366004cdd..04bb3a9d90a8 100644 --- a/drivers/s390/scsi/zfcp_ext.h +++ b/drivers/s390/scsi/zfcp_ext.h @@ -63,7 +63,6 @@ extern int zfcp_qdio_allocate_queues(struct zfcp_adapter *); extern void zfcp_qdio_free_queues(struct zfcp_adapter *); extern int zfcp_qdio_determine_pci(struct zfcp_qdio_queue *, struct zfcp_fsf_req *); -extern int zfcp_qdio_reqid_check(struct zfcp_adapter *, void *); extern volatile struct qdio_buffer_element *zfcp_qdio_sbale_req (struct zfcp_fsf_req *, int, int); @@ -190,5 +189,10 @@ extern void zfcp_scsi_dbf_event_abort(const char *, struct zfcp_adapter *, struct zfcp_fsf_req *); extern void zfcp_scsi_dbf_event_devreset(const char *, u8, struct zfcp_unit *, struct scsi_cmnd *); +extern void zfcp_reqlist_add(struct zfcp_adapter *, struct zfcp_fsf_req *); +extern void zfcp_reqlist_remove(struct zfcp_adapter *, unsigned long); +extern struct zfcp_fsf_req *zfcp_reqlist_ismember(struct zfcp_adapter *, + unsigned long); +extern int zfcp_reqlist_isempty(struct zfcp_adapter *); #endif /* ZFCP_EXT_H */ diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c index 31db2b06faba..ff2eacf5ec8c 100644 --- a/drivers/s390/scsi/zfcp_fsf.c +++ b/drivers/s390/scsi/zfcp_fsf.c @@ -49,7 +49,6 @@ static int zfcp_fsf_fsfstatus_qual_eval(struct zfcp_fsf_req *); static void zfcp_fsf_link_down_info_eval(struct zfcp_adapter *, struct fsf_link_down_info *); static int zfcp_fsf_req_dispatch(struct zfcp_fsf_req *); -static void zfcp_fsf_req_dismiss(struct zfcp_fsf_req *); /* association between FSF command and FSF QTCB type */ static u32 fsf_qtcb_type[] = { @@ -146,49 +145,50 @@ zfcp_fsf_req_free(struct zfcp_fsf_req *fsf_req) kfree(fsf_req); } -/* - * function: - * - * purpose: - * - * returns: - * - * note: qdio queues shall be down (no ongoing inbound processing) +/** + * zfcp_fsf_req_dismiss - dismiss a single fsf request */ -int -zfcp_fsf_req_dismiss_all(struct zfcp_adapter *adapter) +static void zfcp_fsf_req_dismiss(struct zfcp_adapter *adapter, + struct zfcp_fsf_req *fsf_req, + unsigned int counter) { - struct zfcp_fsf_req *fsf_req, *tmp; - unsigned long flags; - LIST_HEAD(remove_queue); + u64 dbg_tmp[2]; - spin_lock_irqsave(&adapter->fsf_req_list_lock, flags); - list_splice_init(&adapter->fsf_req_list_head, &remove_queue); - atomic_set(&adapter->fsf_reqs_active, 0); - spin_unlock_irqrestore(&adapter->fsf_req_list_lock, flags); - - list_for_each_entry_safe(fsf_req, tmp, &remove_queue, list) { - list_del(&fsf_req->list); - zfcp_fsf_req_dismiss(fsf_req); - } - - return 0; -} - -/* - * function: - * - * purpose: - * - * returns: - */ -static void -zfcp_fsf_req_dismiss(struct zfcp_fsf_req *fsf_req) -{ + dbg_tmp[0] = (u64) atomic_read(&adapter->reqs_active); + dbg_tmp[1] = (u64) counter; + debug_event(adapter->erp_dbf, 4, (void *) dbg_tmp, 16); + list_del(&fsf_req->list); fsf_req->status |= ZFCP_STATUS_FSFREQ_DISMISSED; zfcp_fsf_req_complete(fsf_req); } +/** + * zfcp_fsf_req_dismiss_all - dismiss all remaining fsf requests + */ +int zfcp_fsf_req_dismiss_all(struct zfcp_adapter *adapter) +{ + struct zfcp_fsf_req *request, *tmp; + unsigned long flags; + unsigned int i, counter; + + spin_lock_irqsave(&adapter->req_list_lock, flags); + atomic_set(&adapter->reqs_active, 0); + for (i=0; ireq_list[i])) + continue; + + counter = 0; + list_for_each_entry_safe(request, tmp, + &adapter->req_list[i], list) { + zfcp_fsf_req_dismiss(adapter, request, counter); + counter++; + } + } + spin_unlock_irqrestore(&adapter->req_list_lock, flags); + + return 0; +} + /* * function: zfcp_fsf_req_complete * @@ -4592,12 +4592,14 @@ static inline void zfcp_fsf_req_qtcb_init(struct zfcp_fsf_req *fsf_req) { if (likely(fsf_req->qtcb != NULL)) { - fsf_req->qtcb->prefix.req_seq_no = fsf_req->adapter->fsf_req_seq_no; - fsf_req->qtcb->prefix.req_id = (unsigned long)fsf_req; + fsf_req->qtcb->prefix.req_seq_no = + fsf_req->adapter->fsf_req_seq_no; + fsf_req->qtcb->prefix.req_id = fsf_req->req_id; fsf_req->qtcb->prefix.ulp_info = ZFCP_ULP_INFO_VERSION; - fsf_req->qtcb->prefix.qtcb_type = fsf_qtcb_type[fsf_req->fsf_command]; + fsf_req->qtcb->prefix.qtcb_type = + fsf_qtcb_type[fsf_req->fsf_command]; fsf_req->qtcb->prefix.qtcb_version = ZFCP_QTCB_VERSION; - fsf_req->qtcb->header.req_handle = (unsigned long)fsf_req; + fsf_req->qtcb->header.req_handle = fsf_req->req_id; fsf_req->qtcb->header.fsf_command = fsf_req->fsf_command; } } @@ -4654,6 +4656,7 @@ zfcp_fsf_req_create(struct zfcp_adapter *adapter, u32 fsf_cmd, int req_flags, { volatile struct qdio_buffer_element *sbale; struct zfcp_fsf_req *fsf_req = NULL; + unsigned long flags; int ret = 0; struct zfcp_qdio_queue *req_queue = &adapter->request_queue; @@ -4668,6 +4671,12 @@ zfcp_fsf_req_create(struct zfcp_adapter *adapter, u32 fsf_cmd, int req_flags, fsf_req->adapter = adapter; fsf_req->fsf_command = fsf_cmd; + INIT_LIST_HEAD(&fsf_req->list); + + /* unique request id */ + spin_lock_irqsave(&adapter->req_list_lock, flags); + fsf_req->req_id = adapter->req_no++; + spin_unlock_irqrestore(&adapter->req_list_lock, flags); zfcp_fsf_req_qtcb_init(fsf_req); @@ -4707,7 +4716,7 @@ zfcp_fsf_req_create(struct zfcp_adapter *adapter, u32 fsf_cmd, int req_flags, sbale = zfcp_qdio_sbale_req(fsf_req, fsf_req->sbal_curr, 0); /* setup common SBALE fields */ - sbale[0].addr = fsf_req; + sbale[0].addr = (void *) fsf_req->req_id; sbale[0].flags |= SBAL_FLAGS0_COMMAND; if (likely(fsf_req->qtcb != NULL)) { sbale[1].addr = (void *) fsf_req->qtcb; @@ -4747,7 +4756,7 @@ zfcp_fsf_req_send(struct zfcp_fsf_req *fsf_req, struct timer_list *timer) volatile struct qdio_buffer_element *sbale; int inc_seq_no; int new_distance_from_int; - unsigned long flags; + u64 dbg_tmp[2]; int retval = 0; adapter = fsf_req->adapter; @@ -4761,10 +4770,10 @@ zfcp_fsf_req_send(struct zfcp_fsf_req *fsf_req, struct timer_list *timer) ZFCP_HEX_DUMP(ZFCP_LOG_LEVEL_TRACE, (char *) sbale[1].addr, sbale[1].length); - /* put allocated FSF request at list tail */ - spin_lock_irqsave(&adapter->fsf_req_list_lock, flags); - list_add_tail(&fsf_req->list, &adapter->fsf_req_list_head); - spin_unlock_irqrestore(&adapter->fsf_req_list_lock, flags); + /* put allocated FSF request into hash table */ + spin_lock(&adapter->req_list_lock); + zfcp_reqlist_add(adapter, fsf_req); + spin_unlock(&adapter->req_list_lock); inc_seq_no = (fsf_req->qtcb != NULL); @@ -4803,6 +4812,10 @@ zfcp_fsf_req_send(struct zfcp_fsf_req *fsf_req, struct timer_list *timer) QDIO_FLAG_SYNC_OUTPUT, 0, fsf_req->sbal_first, fsf_req->sbal_number, NULL); + dbg_tmp[0] = (unsigned long) sbale[0].addr; + dbg_tmp[1] = (u64) retval; + debug_event(adapter->erp_dbf, 4, (void *) dbg_tmp, 16); + if (unlikely(retval)) { /* Queues are down..... */ retval = -EIO; @@ -4812,22 +4825,17 @@ zfcp_fsf_req_send(struct zfcp_fsf_req *fsf_req, struct timer_list *timer) */ if (timer) del_timer(timer); - spin_lock_irqsave(&adapter->fsf_req_list_lock, flags); - list_del(&fsf_req->list); - spin_unlock_irqrestore(&adapter->fsf_req_list_lock, flags); - /* - * adjust the number of free SBALs in request queue as well as - * position of first one - */ + spin_lock(&adapter->req_list_lock); + zfcp_reqlist_remove(adapter, fsf_req->req_id); + spin_unlock(&adapter->req_list_lock); + /* undo changes in request queue made for this request */ zfcp_qdio_zero_sbals(req_queue->buffer, fsf_req->sbal_first, fsf_req->sbal_number); atomic_add(fsf_req->sbal_number, &req_queue->free_count); - req_queue->free_index -= fsf_req->sbal_number; /* increase */ + req_queue->free_index -= fsf_req->sbal_number; req_queue->free_index += QDIO_MAX_BUFFERS_PER_Q; req_queue->free_index %= QDIO_MAX_BUFFERS_PER_Q; /* wrap */ - ZFCP_LOG_DEBUG - ("error: do_QDIO failed. Buffers could not be enqueued " - "to request queue.\n"); + zfcp_erp_adapter_reopen(adapter, 0); } else { req_queue->distance_from_int = new_distance_from_int; /* @@ -4843,7 +4851,7 @@ zfcp_fsf_req_send(struct zfcp_fsf_req *fsf_req, struct timer_list *timer) adapter->fsf_req_seq_no++; /* count FSF requests pending */ - atomic_inc(&adapter->fsf_reqs_active); + atomic_inc(&adapter->reqs_active); } return retval; } diff --git a/drivers/s390/scsi/zfcp_qdio.c b/drivers/s390/scsi/zfcp_qdio.c index 49ea5add4abc..dbd9f48e863e 100644 --- a/drivers/s390/scsi/zfcp_qdio.c +++ b/drivers/s390/scsi/zfcp_qdio.c @@ -282,6 +282,37 @@ zfcp_qdio_request_handler(struct ccw_device *ccw_device, return; } +/** + * zfcp_qdio_reqid_check - checks for valid reqids or unsolicited status + */ +static int zfcp_qdio_reqid_check(struct zfcp_adapter *adapter, + unsigned long req_id) +{ + struct zfcp_fsf_req *fsf_req; + unsigned long flags; + + debug_long_event(adapter->erp_dbf, 4, req_id); + + spin_lock_irqsave(&adapter->req_list_lock, flags); + fsf_req = zfcp_reqlist_ismember(adapter, req_id); + + if (!fsf_req) { + spin_unlock_irqrestore(&adapter->req_list_lock, flags); + ZFCP_LOG_NORMAL("error: unknown request id (%ld).\n", req_id); + zfcp_erp_adapter_reopen(adapter, 0); + return -EINVAL; + } + + zfcp_reqlist_remove(adapter, req_id); + atomic_dec(&adapter->reqs_active); + spin_unlock_irqrestore(&adapter->req_list_lock, flags); + + /* finish the FSF request */ + zfcp_fsf_req_complete(fsf_req); + + return 0; +} + /* * function: zfcp_qdio_response_handler * @@ -344,7 +375,7 @@ zfcp_qdio_response_handler(struct ccw_device *ccw_device, /* look for QDIO request identifiers in SB */ buffere = &buffer->element[buffere_index]; retval = zfcp_qdio_reqid_check(adapter, - (void *) buffere->addr); + (unsigned long) buffere->addr); if (retval) { ZFCP_LOG_NORMAL("bug: unexpected inbound " @@ -415,52 +446,6 @@ zfcp_qdio_response_handler(struct ccw_device *ccw_device, return; } -/* - * function: zfcp_qdio_reqid_check - * - * purpose: checks for valid reqids or unsolicited status - * - * returns: 0 - valid request id or unsolicited status - * !0 - otherwise - */ -int -zfcp_qdio_reqid_check(struct zfcp_adapter *adapter, void *sbale_addr) -{ - struct zfcp_fsf_req *fsf_req; - unsigned long flags; - - /* invalid (per convention used in this driver) */ - if (unlikely(!sbale_addr)) { - ZFCP_LOG_NORMAL("bug: invalid reqid\n"); - return -EINVAL; - } - - /* valid request id and thus (hopefully :) valid fsf_req address */ - fsf_req = (struct zfcp_fsf_req *) sbale_addr; - - /* serialize with zfcp_fsf_req_dismiss_all */ - spin_lock_irqsave(&adapter->fsf_req_list_lock, flags); - if (list_empty(&adapter->fsf_req_list_head)) { - spin_unlock_irqrestore(&adapter->fsf_req_list_lock, flags); - return 0; - } - list_del(&fsf_req->list); - atomic_dec(&adapter->fsf_reqs_active); - spin_unlock_irqrestore(&adapter->fsf_req_list_lock, flags); - - if (unlikely(adapter != fsf_req->adapter)) { - ZFCP_LOG_NORMAL("bug: invalid reqid (fsf_req=%p, " - "fsf_req->adapter=%p, adapter=%p)\n", - fsf_req, fsf_req->adapter, adapter); - return -EINVAL; - } - - /* finish the FSF request */ - zfcp_fsf_req_complete(fsf_req); - - return 0; -} - /** * zfcp_qdio_sbale_get - return pointer to SBALE of qdio_queue * @queue: queue from which SBALE should be returned From f6c0e7a7b3b6db15146877c0cef43b413af5b76e Mon Sep 17 00:00:00 2001 From: Andreas Herrmann Date: Wed, 2 Aug 2006 11:05:52 +0200 Subject: [PATCH 046/488] [SCSI] zfcp: minor erp bug fixes Bug fixes for zfcp's erp: - trigger adapter reopen if do_QDIO fails - avoid erp deadlock if registration of scsi target or remote port hang - do not treat as error if exchange port data fails - decrease timeout for target reset and aborts - mark unit failed if slave_destroy is called Additionally some code cleanup was done: - made some functions void when retval is not of interest - shortened initialization of zfcp's host_template - corrected some comments Signed-off-by: Andreas Herrmann Signed-off-by: James Bottomley --- drivers/s390/scsi/zfcp_def.h | 2 +- drivers/s390/scsi/zfcp_erp.c | 194 ++++++++++++---------------------- drivers/s390/scsi/zfcp_ext.h | 3 +- drivers/s390/scsi/zfcp_scsi.c | 73 ++++++------- 4 files changed, 106 insertions(+), 166 deletions(-) diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h index 72293f3870b5..904d6a7e9312 100644 --- a/drivers/s390/scsi/zfcp_def.h +++ b/drivers/s390/scsi/zfcp_def.h @@ -80,7 +80,7 @@ zfcp_address_to_sg(void *address, struct scatterlist *list) #define REQUEST_LIST_SIZE 128 /********************* SCSI SPECIFIC DEFINES *********************************/ -#define ZFCP_SCSI_ER_TIMEOUT (100*HZ) +#define ZFCP_SCSI_ER_TIMEOUT (10*HZ) /********************* CIO/QDIO SPECIFIC DEFINES *****************************/ diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c index f74412bd9d6a..7f60b6fdf724 100644 --- a/drivers/s390/scsi/zfcp_erp.c +++ b/drivers/s390/scsi/zfcp_erp.c @@ -64,8 +64,8 @@ static int zfcp_erp_strategy_check_action(struct zfcp_erp_action *, int); static int zfcp_erp_adapter_strategy(struct zfcp_erp_action *); static int zfcp_erp_adapter_strategy_generic(struct zfcp_erp_action *, int); static int zfcp_erp_adapter_strategy_close(struct zfcp_erp_action *); -static int zfcp_erp_adapter_strategy_close_qdio(struct zfcp_erp_action *); -static int zfcp_erp_adapter_strategy_close_fsf(struct zfcp_erp_action *); +static void zfcp_erp_adapter_strategy_close_qdio(struct zfcp_erp_action *); +static void zfcp_erp_adapter_strategy_close_fsf(struct zfcp_erp_action *); static int zfcp_erp_adapter_strategy_open(struct zfcp_erp_action *); static int zfcp_erp_adapter_strategy_open_qdio(struct zfcp_erp_action *); static int zfcp_erp_adapter_strategy_open_fsf(struct zfcp_erp_action *); @@ -93,10 +93,9 @@ static int zfcp_erp_unit_strategy_clearstati(struct zfcp_unit *); static int zfcp_erp_unit_strategy_close(struct zfcp_erp_action *); static int zfcp_erp_unit_strategy_open(struct zfcp_erp_action *); -static int zfcp_erp_action_dismiss_adapter(struct zfcp_adapter *); -static int zfcp_erp_action_dismiss_port(struct zfcp_port *); -static int zfcp_erp_action_dismiss_unit(struct zfcp_unit *); -static int zfcp_erp_action_dismiss(struct zfcp_erp_action *); +static void zfcp_erp_action_dismiss_port(struct zfcp_port *); +static void zfcp_erp_action_dismiss_unit(struct zfcp_unit *); +static void zfcp_erp_action_dismiss(struct zfcp_erp_action *); static int zfcp_erp_action_enqueue(int, struct zfcp_adapter *, struct zfcp_port *, struct zfcp_unit *); @@ -135,29 +134,39 @@ zfcp_fsf_request_timeout_handler(unsigned long data) zfcp_erp_adapter_reopen(adapter, 0); } -/* - * function: zfcp_fsf_scsi_er_timeout_handler +/** + * zfcp_fsf_scsi_er_timeout_handler - timeout handler for scsi eh tasks * - * purpose: This function needs to be called whenever a SCSI error recovery - * action (abort/reset) does not return. - * Re-opening the adapter means that the command can be returned - * by zfcp (it is guarranteed that it does not return via the - * adapter anymore). The buffer can then be used again. - * - * returns: sod all + * This function needs to be called whenever a SCSI error recovery + * action (abort/reset) does not return. Re-opening the adapter means + * that the abort/reset command can be returned by zfcp. It won't complete + * via the adapter anymore (because qdio queues are closed). If ERP is + * already running on this adapter it will be stopped. */ -void -zfcp_fsf_scsi_er_timeout_handler(unsigned long data) +void zfcp_fsf_scsi_er_timeout_handler(unsigned long data) { struct zfcp_adapter *adapter = (struct zfcp_adapter *) data; + unsigned long flags; ZFCP_LOG_NORMAL("warning: SCSI error recovery timed out. " "Restarting all operations on the adapter %s\n", zfcp_get_busid_by_adapter(adapter)); debug_text_event(adapter->erp_dbf, 1, "eh_lmem_tout"); - zfcp_erp_adapter_reopen(adapter, 0); - return; + write_lock_irqsave(&adapter->erp_lock, flags); + if (atomic_test_mask(ZFCP_STATUS_ADAPTER_ERP_PENDING, + &adapter->status)) { + zfcp_erp_modify_adapter_status(adapter, + ZFCP_STATUS_COMMON_UNBLOCKED|ZFCP_STATUS_COMMON_OPEN, + ZFCP_CLEAR); + zfcp_erp_action_dismiss_adapter(adapter); + write_unlock_irqrestore(&adapter->erp_lock, flags); + /* dismiss all pending requests including requests for ERP */ + zfcp_fsf_req_dismiss_all(adapter); + adapter->fsf_req_seq_no = 0; + } else + write_unlock_irqrestore(&adapter->erp_lock, flags); + zfcp_erp_adapter_reopen(adapter, 0); } /* @@ -670,17 +679,10 @@ zfcp_erp_unit_reopen(struct zfcp_unit *unit, int clear_mask) return retval; } -/* - * function: - * - * purpose: disable I/O, - * return any open requests and clean them up, - * aim: no pending and incoming I/O - * - * returns: +/** + * zfcp_erp_adapter_block - mark adapter as blocked, block scsi requests */ -static void -zfcp_erp_adapter_block(struct zfcp_adapter *adapter, int clear_mask) +static void zfcp_erp_adapter_block(struct zfcp_adapter *adapter, int clear_mask) { debug_text_event(adapter->erp_dbf, 6, "a_bl"); zfcp_erp_modify_adapter_status(adapter, @@ -688,15 +690,10 @@ zfcp_erp_adapter_block(struct zfcp_adapter *adapter, int clear_mask) clear_mask, ZFCP_CLEAR); } -/* - * function: - * - * purpose: enable I/O - * - * returns: +/** + * zfcp_erp_adapter_unblock - mark adapter as unblocked, allow scsi requests */ -static void -zfcp_erp_adapter_unblock(struct zfcp_adapter *adapter) +static void zfcp_erp_adapter_unblock(struct zfcp_adapter *adapter) { debug_text_event(adapter->erp_dbf, 6, "a_ubl"); atomic_set_mask(ZFCP_STATUS_COMMON_UNBLOCKED, &adapter->status); @@ -897,23 +894,15 @@ zfcp_erp_strategy_check_fsfreq(struct zfcp_erp_action *erp_action) return retval; } -/* - * purpose: generic handler for asynchronous events related to erp_action events - * (normal completion, time-out, dismissing, retry after - * low memory condition) +/** + * zfcp_erp_async_handler_nolock - complete erp_action * - * note: deletion of timer is not required (e.g. in case of a time-out), - * but a second try does no harm, - * we leave it in here to allow for greater simplification - * - * returns: 0 - there was an action to handle - * !0 - otherwise + * Used for normal completion, time-out, dismissal and failure after + * low memory condition. */ -static int -zfcp_erp_async_handler_nolock(struct zfcp_erp_action *erp_action, - unsigned long set_mask) +static void zfcp_erp_async_handler_nolock(struct zfcp_erp_action *erp_action, + unsigned long set_mask) { - int retval; struct zfcp_adapter *adapter = erp_action->adapter; if (zfcp_erp_action_exists(erp_action) == ZFCP_ERP_ACTION_RUNNING) { @@ -924,43 +913,26 @@ zfcp_erp_async_handler_nolock(struct zfcp_erp_action *erp_action, del_timer(&erp_action->timer); erp_action->status |= set_mask; zfcp_erp_action_ready(erp_action); - retval = 0; } else { /* action is ready or gone - nothing to do */ debug_text_event(adapter->erp_dbf, 3, "a_asyh_gone"); debug_event(adapter->erp_dbf, 3, &erp_action->action, sizeof (int)); - retval = 1; } - - return retval; } -/* - * purpose: generic handler for asynchronous events related to erp_action - * events (normal completion, time-out, dismissing, retry after - * low memory condition) - * - * note: deletion of timer is not required (e.g. in case of a time-out), - * but a second try does no harm, - * we leave it in here to allow for greater simplification - * - * returns: 0 - there was an action to handle - * !0 - otherwise +/** + * zfcp_erp_async_handler - wrapper for erp_async_handler_nolock w/ locking */ -int -zfcp_erp_async_handler(struct zfcp_erp_action *erp_action, - unsigned long set_mask) +void zfcp_erp_async_handler(struct zfcp_erp_action *erp_action, + unsigned long set_mask) { struct zfcp_adapter *adapter = erp_action->adapter; unsigned long flags; - int retval; write_lock_irqsave(&adapter->erp_lock, flags); - retval = zfcp_erp_async_handler_nolock(erp_action, set_mask); + zfcp_erp_async_handler_nolock(erp_action, set_mask); write_unlock_irqrestore(&adapter->erp_lock, flags); - - return retval; } /* @@ -997,17 +969,15 @@ zfcp_erp_timeout_handler(unsigned long data) zfcp_erp_async_handler(erp_action, ZFCP_STATUS_ERP_TIMEDOUT); } -/* - * purpose: is called for an erp_action which needs to be ended - * though not being done, - * this is usually required if an higher is generated, - * action gets an appropriate flag and will be processed - * accordingly +/** + * zfcp_erp_action_dismiss - dismiss an erp_action * - * locks: erp_lock held (thus we need to call another handler variant) + * adapter->erp_lock must be held + * + * Dismissal of an erp_action is usually required if an erp_action of + * higher priority is generated. */ -static int -zfcp_erp_action_dismiss(struct zfcp_erp_action *erp_action) +static void zfcp_erp_action_dismiss(struct zfcp_erp_action *erp_action) { struct zfcp_adapter *adapter = erp_action->adapter; @@ -1015,8 +985,6 @@ zfcp_erp_action_dismiss(struct zfcp_erp_action *erp_action) debug_event(adapter->erp_dbf, 2, &erp_action->action, sizeof (int)); zfcp_erp_async_handler_nolock(erp_action, ZFCP_STATUS_ERP_DISMISSED); - - return 0; } int @@ -2072,18 +2040,12 @@ zfcp_erp_adapter_strategy_open_qdio(struct zfcp_erp_action *erp_action) return retval; } -/* - * function: zfcp_qdio_cleanup - * - * purpose: cleans up QDIO operation for the specified adapter - * - * returns: 0 - successful cleanup - * !0 - failed cleanup +/** + * zfcp_erp_adapter_strategy_close_qdio - close qdio queues for an adapter */ -int +static void zfcp_erp_adapter_strategy_close_qdio(struct zfcp_erp_action *erp_action) { - int retval = ZFCP_ERP_SUCCEEDED; int first_used; int used_count; struct zfcp_adapter *adapter = erp_action->adapter; @@ -2092,15 +2054,13 @@ zfcp_erp_adapter_strategy_close_qdio(struct zfcp_erp_action *erp_action) ZFCP_LOG_DEBUG("error: attempt to shut down inactive QDIO " "queues on adapter %s\n", zfcp_get_busid_by_adapter(adapter)); - retval = ZFCP_ERP_FAILED; - goto out; + return; } /* * Get queue_lock and clear QDIOUP flag. Thus it's guaranteed that * do_QDIO won't be called while qdio_shutdown is in progress. */ - write_lock_irq(&adapter->request_queue.queue_lock); atomic_clear_mask(ZFCP_STATUS_ADAPTER_QDIOUP, &adapter->status); write_unlock_irq(&adapter->request_queue.queue_lock); @@ -2132,8 +2092,6 @@ zfcp_erp_adapter_strategy_close_qdio(struct zfcp_erp_action *erp_action) adapter->request_queue.free_index = 0; atomic_set(&adapter->request_queue.free_count, 0); adapter->request_queue.distance_from_int = 0; - out: - return retval; } static int @@ -2256,11 +2214,11 @@ zfcp_erp_adapter_strategy_open_fsf_xport(struct zfcp_erp_action *erp_action) "%s)\n", zfcp_get_busid_by_adapter(adapter)); ret = ZFCP_ERP_FAILED; } - if (!atomic_test_mask(ZFCP_STATUS_ADAPTER_XPORT_OK, &adapter->status)) { - ZFCP_LOG_INFO("error: exchange port data failed (adapter " + + /* don't treat as error for the sake of compatibility */ + if (!atomic_test_mask(ZFCP_STATUS_ADAPTER_XPORT_OK, &adapter->status)) + ZFCP_LOG_INFO("warning: exchange port data failed (adapter " "%s\n", zfcp_get_busid_by_adapter(adapter)); - ret = ZFCP_ERP_FAILED; - } return ret; } @@ -2290,18 +2248,12 @@ zfcp_erp_adapter_strategy_open_fsf_statusread(struct zfcp_erp_action return retval; } -/* - * function: zfcp_fsf_cleanup - * - * purpose: cleanup FSF operation for specified adapter - * - * returns: 0 - FSF operation successfully cleaned up - * !0 - failed to cleanup FSF operation for this adapter +/** + * zfcp_erp_adapter_strategy_close_fsf - stop FSF operations for an adapter */ -static int +static void zfcp_erp_adapter_strategy_close_fsf(struct zfcp_erp_action *erp_action) { - int retval = ZFCP_ERP_SUCCEEDED; struct zfcp_adapter *adapter = erp_action->adapter; /* @@ -2315,8 +2267,6 @@ zfcp_erp_adapter_strategy_close_fsf(struct zfcp_erp_action *erp_action) /* all ports and units are closed */ zfcp_erp_modify_adapter_status(adapter, ZFCP_STATUS_COMMON_OPEN, ZFCP_CLEAR); - - return retval; } /* @@ -3291,10 +3241,8 @@ zfcp_erp_action_cleanup(int action, struct zfcp_adapter *adapter, } -static int -zfcp_erp_action_dismiss_adapter(struct zfcp_adapter *adapter) +void zfcp_erp_action_dismiss_adapter(struct zfcp_adapter *adapter) { - int retval = 0; struct zfcp_port *port; debug_text_event(adapter->erp_dbf, 5, "a_actab"); @@ -3303,14 +3251,10 @@ zfcp_erp_action_dismiss_adapter(struct zfcp_adapter *adapter) else list_for_each_entry(port, &adapter->port_list_head, list) zfcp_erp_action_dismiss_port(port); - - return retval; } -static int -zfcp_erp_action_dismiss_port(struct zfcp_port *port) +static void zfcp_erp_action_dismiss_port(struct zfcp_port *port) { - int retval = 0; struct zfcp_unit *unit; struct zfcp_adapter *adapter = port->adapter; @@ -3321,22 +3265,16 @@ zfcp_erp_action_dismiss_port(struct zfcp_port *port) else list_for_each_entry(unit, &port->unit_list_head, list) zfcp_erp_action_dismiss_unit(unit); - - return retval; } -static int -zfcp_erp_action_dismiss_unit(struct zfcp_unit *unit) +static void zfcp_erp_action_dismiss_unit(struct zfcp_unit *unit) { - int retval = 0; struct zfcp_adapter *adapter = unit->port->adapter; debug_text_event(adapter->erp_dbf, 5, "u_actab"); debug_event(adapter->erp_dbf, 5, &unit->fcp_lun, sizeof (fcp_lun_t)); if (atomic_test_mask(ZFCP_STATUS_COMMON_ERP_INUSE, &unit->status)) zfcp_erp_action_dismiss(&unit->erp_action); - - return retval; } static inline void diff --git a/drivers/s390/scsi/zfcp_ext.h b/drivers/s390/scsi/zfcp_ext.h index 04bb3a9d90a8..146d7a2b4c4a 100644 --- a/drivers/s390/scsi/zfcp_ext.h +++ b/drivers/s390/scsi/zfcp_ext.h @@ -139,6 +139,7 @@ extern void zfcp_erp_modify_adapter_status(struct zfcp_adapter *, u32, int); extern int zfcp_erp_adapter_reopen(struct zfcp_adapter *, int); extern int zfcp_erp_adapter_shutdown(struct zfcp_adapter *, int); extern void zfcp_erp_adapter_failed(struct zfcp_adapter *); +extern void zfcp_erp_action_dismiss_adapter(struct zfcp_adapter *); extern void zfcp_erp_modify_port_status(struct zfcp_port *, u32, int); extern int zfcp_erp_port_reopen(struct zfcp_port *, int); @@ -155,7 +156,7 @@ extern void zfcp_erp_unit_failed(struct zfcp_unit *); extern int zfcp_erp_thread_setup(struct zfcp_adapter *); extern int zfcp_erp_thread_kill(struct zfcp_adapter *); extern int zfcp_erp_wait(struct zfcp_adapter *); -extern int zfcp_erp_async_handler(struct zfcp_erp_action *, unsigned long); +extern void zfcp_erp_async_handler(struct zfcp_erp_action *, unsigned long); extern int zfcp_test_link(struct zfcp_port *); diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c index 671f4a6a5d18..1bb55086db9f 100644 --- a/drivers/s390/scsi/zfcp_scsi.c +++ b/drivers/s390/scsi/zfcp_scsi.c @@ -30,7 +30,6 @@ static int zfcp_scsi_queuecommand(struct scsi_cmnd *, void (*done) (struct scsi_cmnd *)); static int zfcp_scsi_eh_abort_handler(struct scsi_cmnd *); static int zfcp_scsi_eh_device_reset_handler(struct scsi_cmnd *); -static int zfcp_scsi_eh_bus_reset_handler(struct scsi_cmnd *); static int zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *); static int zfcp_task_management_function(struct zfcp_unit *, u8, struct scsi_cmnd *); @@ -46,30 +45,22 @@ struct zfcp_data zfcp_data = { .scsi_host_template = { .name = ZFCP_NAME, .proc_name = "zfcp", - .proc_info = NULL, - .detect = NULL, .slave_alloc = zfcp_scsi_slave_alloc, .slave_configure = zfcp_scsi_slave_configure, .slave_destroy = zfcp_scsi_slave_destroy, .queuecommand = zfcp_scsi_queuecommand, .eh_abort_handler = zfcp_scsi_eh_abort_handler, .eh_device_reset_handler = zfcp_scsi_eh_device_reset_handler, - .eh_bus_reset_handler = zfcp_scsi_eh_bus_reset_handler, + .eh_bus_reset_handler = zfcp_scsi_eh_host_reset_handler, .eh_host_reset_handler = zfcp_scsi_eh_host_reset_handler, .can_queue = 4096, .this_id = -1, - /* - * FIXME: - * one less? can zfcp_create_sbale cope with it? - */ .sg_tablesize = ZFCP_MAX_SBALES_PER_REQ, .cmd_per_lun = 1, - .unchecked_isa_dma = 0, .use_clustering = 1, .sdev_attrs = zfcp_sysfs_sdev_attrs, }, .driver_version = ZFCP_VERSION, - /* rest initialised with zeros */ }; /* Find start of Response Information in FCP response unit*/ @@ -176,8 +167,14 @@ zfcp_scsi_slave_alloc(struct scsi_device *sdp) return retval; } -static void -zfcp_scsi_slave_destroy(struct scsi_device *sdpnt) +/** + * zfcp_scsi_slave_destroy - called when scsi device is removed + * + * Remove reference to associated scsi device for an zfcp_unit. + * Mark zfcp_unit as failed. The scsi device might be deleted via sysfs + * or a scan for this device might have failed. + */ +static void zfcp_scsi_slave_destroy(struct scsi_device *sdpnt) { struct zfcp_unit *unit = (struct zfcp_unit *) sdpnt->hostdata; @@ -185,6 +182,7 @@ zfcp_scsi_slave_destroy(struct scsi_device *sdpnt) atomic_clear_mask(ZFCP_STATUS_UNIT_REGISTERED, &unit->status); sdpnt->hostdata = NULL; unit->device = NULL; + zfcp_erp_unit_failed(unit); zfcp_unit_put(unit); } else { ZFCP_LOG_NORMAL("bug: no unit associated with SCSI device at " @@ -549,35 +547,38 @@ zfcp_task_management_function(struct zfcp_unit *unit, u8 tm_flags, } /** - * zfcp_scsi_eh_bus_reset_handler - reset bus (reopen adapter) + * zfcp_scsi_eh_host_reset_handler - handler for host and bus reset + * + * If ERP is already running it will be stopped. */ -int -zfcp_scsi_eh_bus_reset_handler(struct scsi_cmnd *scpnt) +int zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *scpnt) { - struct zfcp_unit *unit = (struct zfcp_unit*) scpnt->device->hostdata; - struct zfcp_adapter *adapter = unit->port->adapter; + struct zfcp_unit *unit; + struct zfcp_adapter *adapter; + unsigned long flags; - ZFCP_LOG_NORMAL("bus reset because of problems with " + unit = (struct zfcp_unit*) scpnt->device->hostdata; + adapter = unit->port->adapter; + + ZFCP_LOG_NORMAL("host/bus reset because of problems with " "unit 0x%016Lx\n", unit->fcp_lun); - zfcp_erp_adapter_reopen(adapter, 0); - zfcp_erp_wait(adapter); - return SUCCESS; -} - -/** - * zfcp_scsi_eh_host_reset_handler - reset host (reopen adapter) - */ -int -zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *scpnt) -{ - struct zfcp_unit *unit = (struct zfcp_unit*) scpnt->device->hostdata; - struct zfcp_adapter *adapter = unit->port->adapter; - - ZFCP_LOG_NORMAL("host reset because of problems with " - "unit 0x%016Lx\n", unit->fcp_lun); - zfcp_erp_adapter_reopen(adapter, 0); - zfcp_erp_wait(adapter); + write_lock_irqsave(&adapter->erp_lock, flags); + if (atomic_test_mask(ZFCP_STATUS_ADAPTER_ERP_PENDING, + &adapter->status)) { + zfcp_erp_modify_adapter_status(adapter, + ZFCP_STATUS_COMMON_UNBLOCKED|ZFCP_STATUS_COMMON_OPEN, + ZFCP_CLEAR); + zfcp_erp_action_dismiss_adapter(adapter); + write_unlock_irqrestore(&adapter->erp_lock, flags); + zfcp_fsf_req_dismiss_all(adapter); + adapter->fsf_req_seq_no = 0; + zfcp_erp_adapter_reopen(adapter, 0); + } else { + write_unlock_irqrestore(&adapter->erp_lock, flags); + zfcp_erp_adapter_reopen(adapter, 0); + zfcp_erp_wait(adapter); + } return SUCCESS; } From 58b3ac07fed31ffc1349380b78305af6522fe1f4 Mon Sep 17 00:00:00 2001 From: Andreas Herrmann Date: Wed, 2 Aug 2006 11:06:21 +0200 Subject: [PATCH 047/488] [SCSI] zfcp: bump version number New version number fo zfcp driver. Signed-off-by: Andreas Herrmann Signed-off-by: James Bottomley --- drivers/s390/scsi/zfcp_def.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h index 904d6a7e9312..94d1b74db356 100644 --- a/drivers/s390/scsi/zfcp_def.h +++ b/drivers/s390/scsi/zfcp_def.h @@ -52,7 +52,7 @@ /********************* GENERAL DEFINES *********************************/ /* zfcp version number, it consists of major, minor, and patch-level number */ -#define ZFCP_VERSION "4.7.0" +#define ZFCP_VERSION "4.8.0" /** * zfcp_sg_to_address - determine kernel address from struct scatterlist From 3e74051bc7b780c5ba28939f9d5c4cd3280a5ff7 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sun, 30 Jul 2006 19:13:36 +0200 Subject: [PATCH 048/488] [SCSI] hptiop: backout ioctl mess The hptiop just got merged with a horrible amount of really bad ioctl code that is against the standards for new scsi drivers. This patch backs it out (and fixes a small bug where scsi_add_host is called to early). We can re-add proper APIs once we agree on them. Signed-off-by: Christoph Hellwig Signed-off-by: James Bottomley --- drivers/scsi/hptiop.c | 566 +----------------------------------------- 1 file changed, 8 insertions(+), 558 deletions(-) diff --git a/drivers/scsi/hptiop.c b/drivers/scsi/hptiop.c index 74d4d22e5c05..bcb3444f1dcf 100644 --- a/drivers/scsi/hptiop.c +++ b/drivers/scsi/hptiop.c @@ -45,10 +45,6 @@ static char driver_name[] = "hptiop"; static const char driver_name_long[] = "RocketRAID 3xxx SATA Controller driver"; static const char driver_ver[] = "v1.0 (060426)"; -static DEFINE_SPINLOCK(hptiop_hba_list_lock); -static LIST_HEAD(hptiop_hba_list); -static int hptiop_cdev_major = -1; - static void hptiop_host_request_callback(struct hptiop_hba *hba, u32 tag); static void hptiop_iop_request_callback(struct hptiop_hba *hba, u32 tag); static void hptiop_message_callback(struct hptiop_hba *hba, u32 msg); @@ -620,532 +616,11 @@ static int hptiop_adjust_disk_queue_depth(struct scsi_device *sdev, return queue_depth; } -struct hptiop_getinfo { - char __user *buffer; - loff_t buflength; - loff_t bufoffset; - loff_t buffillen; - loff_t filpos; -}; - -static void hptiop_copy_mem_info(struct hptiop_getinfo *pinfo, - char *data, int datalen) -{ - if (pinfo->filpos < pinfo->bufoffset) { - if (pinfo->filpos + datalen <= pinfo->bufoffset) { - pinfo->filpos += datalen; - return; - } else { - data += (pinfo->bufoffset - pinfo->filpos); - datalen -= (pinfo->bufoffset - pinfo->filpos); - pinfo->filpos = pinfo->bufoffset; - } - } - - pinfo->filpos += datalen; - if (pinfo->buffillen == pinfo->buflength) - return; - - if (pinfo->buflength - pinfo->buffillen < datalen) - datalen = pinfo->buflength - pinfo->buffillen; - - if (copy_to_user(pinfo->buffer + pinfo->buffillen, data, datalen)) - return; - - pinfo->buffillen += datalen; -} - -static int hptiop_copy_info(struct hptiop_getinfo *pinfo, char *fmt, ...) -{ - va_list args; - char buf[128]; - int len; - - va_start(args, fmt); - len = vsnprintf(buf, sizeof(buf), fmt, args); - va_end(args); - hptiop_copy_mem_info(pinfo, buf, len); - return len; -} - -static void hptiop_ioctl_done(struct hpt_ioctl_k *arg) -{ - arg->done = NULL; - wake_up(&arg->hba->ioctl_wq); -} - -static void hptiop_do_ioctl(struct hpt_ioctl_k *arg) -{ - struct hptiop_hba *hba = arg->hba; - u32 val; - struct hpt_iop_request_ioctl_command __iomem *req; - int ioctl_retry = 0; - - dprintk("scsi%d: hptiop_do_ioctl\n", hba->host->host_no); - - /* - * check (in + out) buff size from application. - * outbuf must be dword aligned. - */ - if (((arg->inbuf_size + 3) & ~3) + arg->outbuf_size > - hba->max_request_size - - sizeof(struct hpt_iop_request_header) - - 4 * sizeof(u32)) { - dprintk("scsi%d: ioctl buf size (%d/%d) is too large\n", - hba->host->host_no, - arg->inbuf_size, arg->outbuf_size); - arg->result = HPT_IOCTL_RESULT_FAILED; - return; - } - -retry: - spin_lock_irq(hba->host->host_lock); - - val = readl(&hba->iop->inbound_queue); - if (val == IOPMU_QUEUE_EMPTY) { - spin_unlock_irq(hba->host->host_lock); - dprintk("scsi%d: no free req for ioctl\n", hba->host->host_no); - arg->result = -1; - return; - } - - req = (struct hpt_iop_request_ioctl_command __iomem *) - ((unsigned long)hba->iop + val); - - writel(HPT_CTL_CODE_LINUX_TO_IOP(arg->ioctl_code), - &req->ioctl_code); - writel(arg->inbuf_size, &req->inbuf_size); - writel(arg->outbuf_size, &req->outbuf_size); - - /* - * use the buffer on the IOP local memory first, then copy it - * back to host. - * the caller's request buffer shoudl be little-endian. - */ - if (arg->inbuf_size) - memcpy_toio(req->buf, arg->inbuf, arg->inbuf_size); - - /* correct the controller ID for IOP */ - if ((arg->ioctl_code == HPT_IOCTL_GET_CHANNEL_INFO || - arg->ioctl_code == HPT_IOCTL_GET_CONTROLLER_INFO_V2 || - arg->ioctl_code == HPT_IOCTL_GET_CONTROLLER_INFO) - && arg->inbuf_size >= sizeof(u32)) - writel(0, req->buf); - - writel(IOP_REQUEST_TYPE_IOCTL_COMMAND, &req->header.type); - writel(0, &req->header.flags); - writel(offsetof(struct hpt_iop_request_ioctl_command, buf) - + arg->inbuf_size, &req->header.size); - writel((u32)(unsigned long)arg, &req->header.context); - writel(BITS_PER_LONG > 32 ? (u32)((unsigned long)arg>>32) : 0, - &req->header.context_hi32); - writel(IOP_RESULT_PENDING, &req->header.result); - - arg->result = HPT_IOCTL_RESULT_FAILED; - arg->done = hptiop_ioctl_done; - - writel(val, &hba->iop->inbound_queue); - hptiop_pci_posting_flush(hba->iop); - - spin_unlock_irq(hba->host->host_lock); - - wait_event_timeout(hba->ioctl_wq, arg->done == NULL, 60 * HZ); - - if (arg->done != NULL) { - hptiop_reset_hba(hba); - if (ioctl_retry++ < 3) - goto retry; - } - - dprintk("hpt_iop_ioctl %x result %d\n", - arg->ioctl_code, arg->result); -} - -static int __hpt_do_ioctl(struct hptiop_hba *hba, u32 code, void *inbuf, - u32 insize, void *outbuf, u32 outsize) -{ - struct hpt_ioctl_k arg; - arg.hba = hba; - arg.ioctl_code = code; - arg.inbuf = inbuf; - arg.outbuf = outbuf; - arg.inbuf_size = insize; - arg.outbuf_size = outsize; - arg.bytes_returned = NULL; - hptiop_do_ioctl(&arg); - return arg.result; -} - -static inline int hpt_id_valid(__le32 id) -{ - return id != 0 && id != cpu_to_le32(0xffffffff); -} - -static int hptiop_get_controller_info(struct hptiop_hba *hba, - struct hpt_controller_info *pinfo) -{ - int id = 0; - - return __hpt_do_ioctl(hba, HPT_IOCTL_GET_CONTROLLER_INFO, - &id, sizeof(int), pinfo, sizeof(*pinfo)); -} - - -static int hptiop_get_channel_info(struct hptiop_hba *hba, int bus, - struct hpt_channel_info *pinfo) -{ - u32 ids[2]; - - ids[0] = 0; - ids[1] = bus; - return __hpt_do_ioctl(hba, HPT_IOCTL_GET_CHANNEL_INFO, - ids, sizeof(ids), pinfo, sizeof(*pinfo)); - -} - -static int hptiop_get_logical_devices(struct hptiop_hba *hba, - __le32 *pids, int maxcount) -{ - int i; - u32 count = maxcount - 1; - - if (__hpt_do_ioctl(hba, HPT_IOCTL_GET_LOGICAL_DEVICES, - &count, sizeof(u32), - pids, sizeof(u32) * maxcount)) - return -1; - - maxcount = le32_to_cpu(pids[0]); - for (i = 0; i < maxcount; i++) - pids[i] = pids[i+1]; - - return maxcount; -} - -static int hptiop_get_device_info_v3(struct hptiop_hba *hba, __le32 id, - struct hpt_logical_device_info_v3 *pinfo) -{ - return __hpt_do_ioctl(hba, HPT_IOCTL_GET_DEVICE_INFO_V3, - &id, sizeof(u32), - pinfo, sizeof(*pinfo)); -} - -static const char *get_array_status(struct hpt_logical_device_info_v3 *devinfo) -{ - static char s[64]; - u32 flags = le32_to_cpu(devinfo->u.array.flags); - u32 trans_prog = le32_to_cpu(devinfo->u.array.transforming_progress); - u32 reb_prog = le32_to_cpu(devinfo->u.array.rebuilding_progress); - - if (flags & ARRAY_FLAG_DISABLED) - return "Disabled"; - else if (flags & ARRAY_FLAG_TRANSFORMING) - sprintf(s, "Expanding/Migrating %d.%d%%%s%s", - trans_prog / 100, - trans_prog % 100, - (flags & (ARRAY_FLAG_NEEDBUILDING|ARRAY_FLAG_BROKEN))? - ", Critical" : "", - ((flags & ARRAY_FLAG_NEEDINITIALIZING) && - !(flags & ARRAY_FLAG_REBUILDING) && - !(flags & ARRAY_FLAG_INITIALIZING))? - ", Unintialized" : ""); - else if ((flags & ARRAY_FLAG_BROKEN) && - devinfo->u.array.array_type != AT_RAID6) - return "Critical"; - else if (flags & ARRAY_FLAG_REBUILDING) - sprintf(s, - (flags & ARRAY_FLAG_NEEDINITIALIZING)? - "%sBackground initializing %d.%d%%" : - "%sRebuilding %d.%d%%", - (flags & ARRAY_FLAG_BROKEN)? "Critical, " : "", - reb_prog / 100, - reb_prog % 100); - else if (flags & ARRAY_FLAG_VERIFYING) - sprintf(s, "%sVerifying %d.%d%%", - (flags & ARRAY_FLAG_BROKEN)? "Critical, " : "", - reb_prog / 100, - reb_prog % 100); - else if (flags & ARRAY_FLAG_INITIALIZING) - sprintf(s, "%sForground initializing %d.%d%%", - (flags & ARRAY_FLAG_BROKEN)? "Critical, " : "", - reb_prog / 100, - reb_prog % 100); - else if (flags & ARRAY_FLAG_NEEDTRANSFORM) - sprintf(s,"%s%s%s", "Need Expanding/Migrating", - (flags & ARRAY_FLAG_BROKEN)? "Critical, " : "", - ((flags & ARRAY_FLAG_NEEDINITIALIZING) && - !(flags & ARRAY_FLAG_REBUILDING) && - !(flags & ARRAY_FLAG_INITIALIZING))? - ", Unintialized" : ""); - else if (flags & ARRAY_FLAG_NEEDINITIALIZING && - !(flags & ARRAY_FLAG_REBUILDING) && - !(flags & ARRAY_FLAG_INITIALIZING)) - sprintf(s,"%sUninitialized", - (flags & ARRAY_FLAG_BROKEN)? "Critical, " : ""); - else if ((flags & ARRAY_FLAG_NEEDBUILDING) || - (flags & ARRAY_FLAG_BROKEN)) - return "Critical"; - else - return "Normal"; - return s; -} - -static void hptiop_dump_devinfo(struct hptiop_hba *hba, - struct hptiop_getinfo *pinfo, __le32 id, int indent) -{ - struct hpt_logical_device_info_v3 devinfo; - int i; - u64 capacity; - - for (i = 0; i < indent; i++) - hptiop_copy_info(pinfo, "\t"); - - if (hptiop_get_device_info_v3(hba, id, &devinfo)) { - hptiop_copy_info(pinfo, "unknown\n"); - return; - } - - switch (devinfo.type) { - - case LDT_DEVICE: { - struct hd_driveid *driveid; - u32 flags = le32_to_cpu(devinfo.u.device.flags); - - driveid = (struct hd_driveid *)devinfo.u.device.ident; - /* model[] is 40 chars long, but we just want 20 chars here */ - driveid->model[20] = 0; - - if (indent) - if (flags & DEVICE_FLAG_DISABLED) - hptiop_copy_info(pinfo,"Missing\n"); - else - hptiop_copy_info(pinfo, "CH%d %s\n", - devinfo.u.device.path_id + 1, - driveid->model); - else { - capacity = le64_to_cpu(devinfo.capacity) * 512; - do_div(capacity, 1000000); - hptiop_copy_info(pinfo, - "CH%d %s, %lluMB, %s %s%s%s%s\n", - devinfo.u.device.path_id + 1, - driveid->model, - capacity, - (flags & DEVICE_FLAG_DISABLED)? - "Disabled" : "Normal", - devinfo.u.device.read_ahead_enabled? - "[RA]" : "", - devinfo.u.device.write_cache_enabled? - "[WC]" : "", - devinfo.u.device.TCQ_enabled? - "[TCQ]" : "", - devinfo.u.device.NCQ_enabled? - "[NCQ]" : "" - ); - } - break; - } - - case LDT_ARRAY: - if (devinfo.target_id != INVALID_TARGET_ID) - hptiop_copy_info(pinfo, "[DISK %d_%d] ", - devinfo.vbus_id, devinfo.target_id); - - capacity = le64_to_cpu(devinfo.capacity) * 512; - do_div(capacity, 1000000); - hptiop_copy_info(pinfo, "%s (%s), %lluMB, %s\n", - devinfo.u.array.name, - devinfo.u.array.array_type==AT_RAID0? "RAID0" : - devinfo.u.array.array_type==AT_RAID1? "RAID1" : - devinfo.u.array.array_type==AT_RAID5? "RAID5" : - devinfo.u.array.array_type==AT_RAID6? "RAID6" : - devinfo.u.array.array_type==AT_JBOD? "JBOD" : - "unknown", - capacity, - get_array_status(&devinfo)); - for (i = 0; i < devinfo.u.array.ndisk; i++) { - if (hpt_id_valid(devinfo.u.array.members[i])) { - if (cpu_to_le16(1<private_data; - struct hptiop_getinfo info; - int i, j, ndev; - struct hpt_controller_info con_info; - struct hpt_channel_info chan_info; - __le32 ids[32]; - - info.buffer = buf; - info.buflength = count; - info.bufoffset = ppos ? *ppos : 0; - info.filpos = 0; - info.buffillen = 0; - - if (hptiop_get_controller_info(hba, &con_info)) - return -EIO; - - for (i = 0; i < con_info.num_buses; i++) { - if (hptiop_get_channel_info(hba, i, &chan_info) == 0) { - if (hpt_id_valid(chan_info.devices[0])) - hptiop_dump_devinfo(hba, &info, - chan_info.devices[0], 0); - if (hpt_id_valid(chan_info.devices[1])) - hptiop_dump_devinfo(hba, &info, - chan_info.devices[1], 0); - } - } - - ndev = hptiop_get_logical_devices(hba, ids, - sizeof(ids) / sizeof(ids[0])); - - /* - * if hptiop_get_logical_devices fails, ndev==-1 and it just - * output nothing here - */ - for (j = 0; j < ndev; j++) - hptiop_dump_devinfo(hba, &info, ids[j], 0); - - if (ppos) - *ppos += info.buffillen; - - return info.buffillen; -} - -static int hptiop_cdev_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg) -{ - struct hptiop_hba *hba = file->private_data; - struct hpt_ioctl_u ioctl_u; - struct hpt_ioctl_k ioctl_k; - u32 bytes_returned; - int err = -EINVAL; - - if (copy_from_user(&ioctl_u, - (void __user *)arg, sizeof(struct hpt_ioctl_u))) - return -EINVAL; - - if (ioctl_u.magic != HPT_IOCTL_MAGIC) - return -EINVAL; - - ioctl_k.ioctl_code = ioctl_u.ioctl_code; - ioctl_k.inbuf = NULL; - ioctl_k.inbuf_size = ioctl_u.inbuf_size; - ioctl_k.outbuf = NULL; - ioctl_k.outbuf_size = ioctl_u.outbuf_size; - ioctl_k.hba = hba; - ioctl_k.bytes_returned = &bytes_returned; - - /* verify user buffer */ - if ((ioctl_k.inbuf_size && !access_ok(VERIFY_READ, - ioctl_u.inbuf, ioctl_k.inbuf_size)) || - (ioctl_k.outbuf_size && !access_ok(VERIFY_WRITE, - ioctl_u.outbuf, ioctl_k.outbuf_size)) || - (ioctl_u.bytes_returned && !access_ok(VERIFY_WRITE, - ioctl_u.bytes_returned, sizeof(u32))) || - ioctl_k.inbuf_size + ioctl_k.outbuf_size > 0x10000) { - - dprintk("scsi%d: got bad user address\n", hba->host->host_no); - return -EINVAL; - } - - /* map buffer to kernel. */ - if (ioctl_k.inbuf_size) { - ioctl_k.inbuf = kmalloc(ioctl_k.inbuf_size, GFP_KERNEL); - if (!ioctl_k.inbuf) { - dprintk("scsi%d: fail to alloc inbuf\n", - hba->host->host_no); - err = -ENOMEM; - goto err_exit; - } - - if (copy_from_user(ioctl_k.inbuf, - ioctl_u.inbuf, ioctl_k.inbuf_size)) { - goto err_exit; - } - } - - if (ioctl_k.outbuf_size) { - ioctl_k.outbuf = kmalloc(ioctl_k.outbuf_size, GFP_KERNEL); - if (!ioctl_k.outbuf) { - dprintk("scsi%d: fail to alloc outbuf\n", - hba->host->host_no); - err = -ENOMEM; - goto err_exit; - } - } - - hptiop_do_ioctl(&ioctl_k); - - if (ioctl_k.result == HPT_IOCTL_RESULT_OK) { - if (ioctl_k.outbuf_size && - copy_to_user(ioctl_u.outbuf, - ioctl_k.outbuf, ioctl_k.outbuf_size)) - goto err_exit; - - if (ioctl_u.bytes_returned && - copy_to_user(ioctl_u.bytes_returned, - &bytes_returned, sizeof(u32))) - goto err_exit; - - err = 0; - } - -err_exit: - kfree(ioctl_k.inbuf); - kfree(ioctl_k.outbuf); - - return err; -} - -static int hptiop_cdev_open(struct inode *inode, struct file *file) -{ - struct hptiop_hba *hba; - unsigned i = 0, minor = iminor(inode); - int ret = -ENODEV; - - spin_lock(&hptiop_hba_list_lock); - list_for_each_entry(hba, &hptiop_hba_list, link) { - if (i == minor) { - file->private_data = hba; - ret = 0; - goto out; - } - i++; - } - -out: - spin_unlock(&hptiop_hba_list_lock); - return ret; -} - -static struct file_operations hptiop_cdev_fops = { - .owner = THIS_MODULE, - .read = hptiop_cdev_read, - .ioctl = hptiop_cdev_ioctl, - .open = hptiop_cdev_open, -}; - static ssize_t hptiop_show_fw_version(struct class_device *class_dev, char *buf) { struct Scsi_Host *host = class_to_shost(class_dev); @@ -1296,19 +771,13 @@ static int __devinit hptiop_probe(struct pci_dev *pcidev, goto unmap_pci_bar; } - if (scsi_add_host(host, &pcidev->dev)) { - printk(KERN_ERR "scsi%d: scsi_add_host failed\n", - hba->host->host_no); - goto unmap_pci_bar; - } - pci_set_drvdata(pcidev, host); if (request_irq(pcidev->irq, hptiop_intr, IRQF_SHARED, driver_name, hba)) { printk(KERN_ERR "scsi%d: request irq %d failed\n", hba->host->host_no, pcidev->irq); - goto remove_scsi_host; + goto unmap_pci_bar; } /* Allocate request mem */ @@ -1355,9 +824,12 @@ static int __devinit hptiop_probe(struct pci_dev *pcidev, if (hptiop_initialize_iop(hba)) goto free_request_mem; - spin_lock(&hptiop_hba_list_lock); - list_add_tail(&hba->link, &hptiop_hba_list); - spin_unlock(&hptiop_hba_list_lock); + if (scsi_add_host(host, &pcidev->dev)) { + printk(KERN_ERR "scsi%d: scsi_add_host failed\n", + hba->host->host_no); + goto free_request_mem; + } + scsi_scan_host(host); @@ -1372,9 +844,6 @@ free_request_mem: free_request_irq: free_irq(hba->pcidev->irq, hba); -remove_scsi_host: - scsi_remove_host(host); - unmap_pci_bar: iounmap(hba->iop); @@ -1422,10 +891,6 @@ static void hptiop_remove(struct pci_dev *pcidev) scsi_remove_host(host); - spin_lock(&hptiop_hba_list_lock); - list_del_init(&hba->link); - spin_unlock(&hptiop_hba_list_lock); - hptiop_shutdown(pcidev); free_irq(hba->pcidev->irq, hba); @@ -1462,27 +927,12 @@ static struct pci_driver hptiop_pci_driver = { static int __init hptiop_module_init(void) { - int error; - printk(KERN_INFO "%s %s\n", driver_name_long, driver_ver); - - error = pci_register_driver(&hptiop_pci_driver); - if (error < 0) - return error; - - hptiop_cdev_major = register_chrdev(0, "hptiop", &hptiop_cdev_fops); - if (hptiop_cdev_major < 0) { - printk(KERN_WARNING "unable to register hptiop device.\n"); - return hptiop_cdev_major; - } - - return 0; + return pci_register_driver(&hptiop_pci_driver); } static void __exit hptiop_module_exit(void) { - dprintk("hptiop_module_exit\n"); - unregister_chrdev(hptiop_cdev_major, "hptiop"); pci_unregister_driver(&hptiop_pci_driver); } From ca8c100a00e91cf93782008441a2e159c4b49a25 Mon Sep 17 00:00:00 2001 From: Russell King Date: Sun, 6 Aug 2006 20:53:40 +0100 Subject: [PATCH 049/488] [ARM] Fix NCR5380-based SCSI card build The NCR5380-based SCSI cards need the SCSI SPI transport selected to build correctly. Signed-off-by: Russell King --- drivers/scsi/arm/Kconfig | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/scsi/arm/Kconfig b/drivers/scsi/arm/Kconfig index 06d7601cdf56..d006a8cb4a74 100644 --- a/drivers/scsi/arm/Kconfig +++ b/drivers/scsi/arm/Kconfig @@ -69,6 +69,7 @@ comment "The following drivers are not fully supported" config SCSI_CUMANA_1 tristate "CumanaSCSI I support (EXPERIMENTAL)" depends on ARCH_ACORN && EXPERIMENTAL && SCSI + select SCSI_SPI_ATTRS help This enables support for the Cumana SCSI I card. If you have an Acorn system with one of these, say Y. If unsure, say N. @@ -76,6 +77,7 @@ config SCSI_CUMANA_1 config SCSI_ECOSCSI tristate "EcoScsi support (EXPERIMENTAL)" depends on ARCH_ACORN && EXPERIMENTAL && (ARCH_ARC || ARCH_A5K) && SCSI + select SCSI_SPI_ATTRS help This enables support for the EcoSCSI card -- a small card that sits in the Econet socket. If you have an Acorn system with one of these, @@ -84,6 +86,7 @@ config SCSI_ECOSCSI config SCSI_OAK1 tristate "Oak SCSI support (EXPERIMENTAL)" depends on ARCH_ACORN && EXPERIMENTAL && SCSI + select SCSI_SPI_ATTRS help This enables support for the Oak SCSI card. If you have an Acorn system with one of these, say Y. If unsure, say N. From 574dc0abab6650c5371df15ac708e48fa25bed89 Mon Sep 17 00:00:00 2001 From: Russell King Date: Sun, 6 Aug 2006 20:55:33 +0100 Subject: [PATCH 050/488] [ARM] Fix Acorn platform SCSI driver build failures SCSI folk forgot to fix up all the uses of 'buffer' before deleting this struct member. Do it for them to rescue the resulting build failures. Signed-off-by: Russell King --- drivers/scsi/arm/scsi.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/arm/scsi.h b/drivers/scsi/arm/scsi.h index 6dd544a5eb56..8c2600ffc6af 100644 --- a/drivers/scsi/arm/scsi.h +++ b/drivers/scsi/arm/scsi.h @@ -74,7 +74,7 @@ static inline void init_SCp(Scsi_Cmnd *SCpnt) unsigned long len = 0; int buf; - SCpnt->SCp.buffer = (struct scatterlist *) SCpnt->buffer; + SCpnt->SCp.buffer = (struct scatterlist *) SCpnt->request_buffer; SCpnt->SCp.buffers_residual = SCpnt->use_sg - 1; SCpnt->SCp.ptr = (char *) (page_address(SCpnt->SCp.buffer->page) + From 916f3ac680fcc4c142e9acd46161f55533b11760 Mon Sep 17 00:00:00 2001 From: Pierre Ossman Date: Sun, 6 Aug 2006 22:22:23 +0200 Subject: [PATCH 051/488] [MMC] Fix base address configuration in wbsd There were some confusion about base I/O variables in the wbsd driver. Seems like things have been working on shear luck so far. The global 'io' variable (used when manually configuring the resources) was used instead of the local 'base' variable. Signed-off-by: Pierre Ossman Signed-off-by: Russell King --- drivers/mmc/wbsd.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/mmc/wbsd.c b/drivers/mmc/wbsd.c index 8a30ef3ae419..ce86887ed3bd 100644 --- a/drivers/mmc/wbsd.c +++ b/drivers/mmc/wbsd.c @@ -41,7 +41,7 @@ #include "wbsd.h" #define DRIVER_NAME "wbsd" -#define DRIVER_VERSION "1.5" +#define DRIVER_VERSION "1.6" #define DBG(x...) \ pr_debug(DRIVER_NAME ": " x) @@ -1439,13 +1439,13 @@ static int __devinit wbsd_scan(struct wbsd_host *host) static int __devinit wbsd_request_region(struct wbsd_host *host, int base) { - if (io & 0x7) + if (base & 0x7) return -EINVAL; if (!request_region(base, 8, DRIVER_NAME)) return -EIO; - host->base = io; + host->base = base; return 0; } From 77d88ee275aeba5da447987f30401bbd4c901ca9 Mon Sep 17 00:00:00 2001 From: Michael Reed Date: Mon, 31 Jul 2006 12:19:40 -0500 Subject: [PATCH 052/488] [SCSI] mptfc: properly wait for firmware target discovery to complete Based upon a conversation I had with LSI's fibre channel firmware guru, this patch adds another condition under which the driver waits for the firmware link initialization / target discovery to complete. Signed-off-by: Michael Reed Acked-by: Moore, Eric Signed-off-by: James Bottomley --- drivers/message/fusion/mptfc.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/message/fusion/mptfc.c b/drivers/message/fusion/mptfc.c index 90da7d63b08e..2144554a640d 100644 --- a/drivers/message/fusion/mptfc.c +++ b/drivers/message/fusion/mptfc.c @@ -669,7 +669,10 @@ mptfc_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum) * if still doing discovery, * hang loose a while until finished */ - if (pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_UNKNOWN) { + if ((pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_UNKNOWN) || + (pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE && + (pp0dest->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_TYPE_MASK) + == MPI_FCPORTPAGE0_FLAGS_ATTACH_NO_INIT)) { if (count-- > 0) { msleep(100); goto try_again; From 3a0c56d801df6785b30e36c19e89d7e971c151da Mon Sep 17 00:00:00 2001 From: Michael Reed Date: Mon, 31 Jul 2006 12:19:50 -0500 Subject: [PATCH 053/488] [SCSI] mptfc: correct out of order event processing This patch corrects a problem in mptfc which can result in targets being removed after executing an "lsiutil 99" reset of the fibre channel ports. The last rescan event was being processed before the setup reset work due to an inappropriate optimization in the event processing logic. Every rescan event is now queued for execution and the setup reset work now executes in the proper sequence. Signed-off-by: Michael Reed Acked-by: Moore, Eric Signed-off-by: James Bottomley --- drivers/message/fusion/mptbase.h | 1 - drivers/message/fusion/mptfc.c | 93 +++++++++++++------------------- 2 files changed, 37 insertions(+), 57 deletions(-) diff --git a/drivers/message/fusion/mptbase.h b/drivers/message/fusion/mptbase.h index d4cb144ab402..c537d71c18e4 100644 --- a/drivers/message/fusion/mptbase.h +++ b/drivers/message/fusion/mptbase.h @@ -640,7 +640,6 @@ typedef struct _MPT_ADAPTER struct work_struct fc_setup_reset_work; struct list_head fc_rports; spinlock_t fc_rescan_work_lock; - int fc_rescan_work_count; struct work_struct fc_rescan_work; char fc_rescan_work_q_name[KOBJ_NAME_LEN]; struct workqueue_struct *fc_rescan_work_q; diff --git a/drivers/message/fusion/mptfc.c b/drivers/message/fusion/mptfc.c index 2144554a640d..85696f34c310 100644 --- a/drivers/message/fusion/mptfc.c +++ b/drivers/message/fusion/mptfc.c @@ -898,59 +898,45 @@ mptfc_rescan_devices(void *arg) { MPT_ADAPTER *ioc = (MPT_ADAPTER *)arg; int ii; - int work_to_do; u64 pn; - unsigned long flags; struct mptfc_rport_info *ri; - do { - /* start by tagging all ports as missing */ - list_for_each_entry(ri, &ioc->fc_rports, list) { - if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) { - ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING; - } + /* start by tagging all ports as missing */ + list_for_each_entry(ri, &ioc->fc_rports, list) { + if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) { + ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING; } + } - /* - * now rescan devices known to adapter, - * will reregister existing rports - */ - for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { - (void) mptfc_GetFcPortPage0(ioc, ii); - mptfc_init_host_attr(ioc,ii); /* refresh */ - mptfc_GetFcDevPage0(ioc,ii,mptfc_register_dev); + /* + * now rescan devices known to adapter, + * will reregister existing rports + */ + for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { + (void) mptfc_GetFcPortPage0(ioc, ii); + mptfc_init_host_attr(ioc, ii); /* refresh */ + mptfc_GetFcDevPage0(ioc, ii, mptfc_register_dev); + } + + /* delete devices still missing */ + list_for_each_entry(ri, &ioc->fc_rports, list) { + /* if newly missing, delete it */ + if (ri->flags & MPT_RPORT_INFO_FLAGS_MISSING) { + + ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED| + MPT_RPORT_INFO_FLAGS_MISSING); + fc_remote_port_delete(ri->rport); /* won't sleep */ + ri->rport = NULL; + + pn = (u64)ri->pg0.WWPN.High << 32 | + (u64)ri->pg0.WWPN.Low; + dfcprintk ((MYIOC_s_INFO_FMT + "mptfc_rescan.%d: %llx deleted\n", + ioc->name, + ioc->sh->host_no, + (unsigned long long)pn)); } - - /* delete devices still missing */ - list_for_each_entry(ri, &ioc->fc_rports, list) { - /* if newly missing, delete it */ - if (ri->flags & MPT_RPORT_INFO_FLAGS_MISSING) { - - ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED| - MPT_RPORT_INFO_FLAGS_MISSING); - fc_remote_port_delete(ri->rport); /* won't sleep */ - ri->rport = NULL; - - pn = (u64)ri->pg0.WWPN.High << 32 | - (u64)ri->pg0.WWPN.Low; - dfcprintk ((MYIOC_s_INFO_FMT - "mptfc_rescan.%d: %llx deleted\n", - ioc->name, - ioc->sh->host_no, - (unsigned long long)pn)); - } - } - - /* - * allow multiple passes as target state - * might have changed during scan - */ - spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); - if (ioc->fc_rescan_work_count > 2) /* only need one more */ - ioc->fc_rescan_work_count = 2; - work_to_do = --ioc->fc_rescan_work_count; - spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); - } while (work_to_do); + } } static int @@ -1162,7 +1148,6 @@ mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id) * by doing it via the workqueue, some locking is eliminated */ - ioc->fc_rescan_work_count = 1; queue_work(ioc->fc_rescan_work_q, &ioc->fc_rescan_work); flush_workqueue(ioc->fc_rescan_work_q); @@ -1205,10 +1190,8 @@ mptfc_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply) case MPI_EVENT_RESCAN: spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); if (ioc->fc_rescan_work_q) { - if (ioc->fc_rescan_work_count++ == 0) { - queue_work(ioc->fc_rescan_work_q, - &ioc->fc_rescan_work); - } + queue_work(ioc->fc_rescan_work_q, + &ioc->fc_rescan_work); } spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); break; @@ -1251,10 +1234,8 @@ mptfc_ioc_reset(MPT_ADAPTER *ioc, int reset_phase) mptfc_SetFcPortPage1_defaults(ioc); spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); if (ioc->fc_rescan_work_q) { - if (ioc->fc_rescan_work_count++ == 0) { - queue_work(ioc->fc_rescan_work_q, - &ioc->fc_rescan_work); - } + queue_work(ioc->fc_rescan_work_q, + &ioc->fc_rescan_work); } spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); } From dd2c609c59cd9daeb90d58f3d1bc3813e8987df1 Mon Sep 17 00:00:00 2001 From: Pierre Ossman Date: Mon, 7 Aug 2006 01:40:04 +0200 Subject: [PATCH 054/488] [MMC] Another stray 'io' reference Another misuse of the global 'io' variable instead of the local 'base'. Signed-off-by: Pierre Ossman Signed-off-by: Russell King --- drivers/mmc/wbsd.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/wbsd.c b/drivers/mmc/wbsd.c index ce86887ed3bd..c351c6d1a18a 100644 --- a/drivers/mmc/wbsd.c +++ b/drivers/mmc/wbsd.c @@ -1773,7 +1773,7 @@ static int __devinit wbsd_init(struct device *dev, int base, int irq, int dma, /* * Request resources. */ - ret = wbsd_request_resources(host, io, irq, dma); + ret = wbsd_request_resources(host, base, irq, dma); if (ret) { wbsd_release_resources(host); wbsd_free_mmc(dev); @@ -1861,6 +1861,7 @@ static void __devexit wbsd_shutdown(struct device *dev, int pnp) static int __devinit wbsd_probe(struct platform_device *dev) { + /* Use the module parameters for resources */ return wbsd_init(&dev->dev, io, irq, dma, 0); } From 25a2001a285e187d99ea347693bedd73b3e0722a Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Mon, 7 Aug 2006 17:00:28 +0200 Subject: [PATCH 055/488] [S390] tape class return value handling. Without this patch register_tape_dev() will always fail, but might return a value that is not an error number. This will lead to accesses to already freed memory areas... Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- drivers/s390/char/tape_class.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/s390/char/tape_class.c b/drivers/s390/char/tape_class.c index 643b6d078563..56b87618b100 100644 --- a/drivers/s390/char/tape_class.c +++ b/drivers/s390/char/tape_class.c @@ -76,7 +76,7 @@ struct tape_class_device *register_tape_dev( device, "%s", tcd->device_name ); - rc = PTR_ERR(tcd->class_device); + rc = IS_ERR(tcd->class_device) ? PTR_ERR(tcd->class_device) : 0; if (rc) goto fail_with_cdev; rc = sysfs_create_link( From 4bc0c4f9e74e7a5d62ef4db923b377f2aa474a8f Mon Sep 17 00:00:00 2001 From: Cornelia Huck Date: Mon, 7 Aug 2006 17:00:30 +0200 Subject: [PATCH 056/488] [S390] retry after deferred condition code. Do a retry of read device characteristics / read configuration data when a deferred condition code 1 is encountered in ccw_device_wake_up(). Signed-off-by: Cornelia Huck Signed-off-by: Martin Schwidefsky --- drivers/s390/cio/device_ops.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/s390/cio/device_ops.c b/drivers/s390/cio/device_ops.c index a60124264bee..9e3de0bd59b5 100644 --- a/drivers/s390/cio/device_ops.c +++ b/drivers/s390/cio/device_ops.c @@ -263,6 +263,9 @@ ccw_device_wake_up(struct ccw_device *cdev, unsigned long ip, struct irb *irb) /* Abuse intparm for error reporting. */ if (IS_ERR(irb)) cdev->private->intparm = -EIO; + else if (irb->scsw.cc == 1) + /* Retry for deferred condition code. */ + cdev->private->intparm = -EAGAIN; else if ((irb->scsw.dstat != (DEV_STAT_CHN_END|DEV_STAT_DEV_END)) || (irb->scsw.cstat != 0)) { From 65200c291c4ce397835d8232eaa0878b765a9bce Mon Sep 17 00:00:00 2001 From: Peter Oberparleiter Date: Mon, 7 Aug 2006 17:00:33 +0200 Subject: [PATCH 057/488] [S390] lost interrupt after chpid vary off/on cycle. I/O on a CCW device may stall if a channel path to that device is logicaly varied off/on. A user I/O interrupt can get misinterpreted as interrupt for an internal path verification operation due to a missing check and is therefore never reported to the device driver. Correct check for pending interruptions before starting path verification. Signed-off-by: Peter Oberparleiter Signed-off-by: Martin Schwidefsky --- drivers/s390/cio/device_fsm.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c index 7a39e0b0386c..6d91c2eb205b 100644 --- a/drivers/s390/cio/device_fsm.c +++ b/drivers/s390/cio/device_fsm.c @@ -772,6 +772,7 @@ ccw_device_online_verify(struct ccw_device *cdev, enum dev_event dev_event) stsch(sch->schid, &sch->schib); if (sch->schib.scsw.actl != 0 || + (sch->schib.scsw.stctl & SCSW_STCTL_STATUS_PEND) || (cdev->private->irb.scsw.stctl & SCSW_STCTL_STATUS_PEND)) { /* * No final status yet or final status not yet delivered From 37ab46a3f4983c32d5b5ab6a0366ec482e38ba47 Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Mon, 7 Aug 2006 18:13:06 +0200 Subject: [PATCH 058/488] [S390] xpram system device class. Remove system device class for xpram. It creates the directory hierarchy under /sys/devices/system/xpram/xpram0. The xpram0 directory is empty and it is always created while xpram1 and following devices are always missing, independent if the devices exist or not. Since the xpram devices are listed in /proc/partitions and /sys/block/ as slram the system device class for xpram is meaningless. Signed-off-by: Martin Schwidefsky --- drivers/s390/block/xpram.c | 25 +------------------------ 1 file changed, 1 insertion(+), 24 deletions(-) diff --git a/drivers/s390/block/xpram.c b/drivers/s390/block/xpram.c index 1140302ff11d..ca7d51f7eccc 100644 --- a/drivers/s390/block/xpram.c +++ b/drivers/s390/block/xpram.c @@ -48,15 +48,6 @@ #define PRINT_ERR(x...) printk(KERN_ERR XPRAM_NAME " error:" x) -static struct sysdev_class xpram_sysclass = { - set_kset_name("xpram"), -}; - -static struct sys_device xpram_sys_device = { - .id = 0, - .cls = &xpram_sysclass, -}; - typedef struct { unsigned int size; /* size of xpram segment in pages */ unsigned int offset; /* start page of xpram segment */ @@ -451,8 +442,6 @@ static void __exit xpram_exit(void) } unregister_blkdev(XPRAM_MAJOR, XPRAM_NAME); blk_cleanup_queue(xpram_queue); - sysdev_unregister(&xpram_sys_device); - sysdev_class_unregister(&xpram_sysclass); } static int __init xpram_init(void) @@ -470,19 +459,7 @@ static int __init xpram_init(void) rc = xpram_setup_sizes(xpram_pages); if (rc) return rc; - rc = sysdev_class_register(&xpram_sysclass); - if (rc) - return rc; - - rc = sysdev_register(&xpram_sys_device); - if (rc) { - sysdev_class_unregister(&xpram_sysclass); - return rc; - } - rc = xpram_setup_blkdev(); - if (rc) - sysdev_unregister(&xpram_sys_device); - return rc; + return xpram_setup_blkdev(); } module_init(xpram_init); From 5cb900a34f640771a4ab6a178659c75022f2971a Mon Sep 17 00:00:00 2001 From: Gerald Schaefer Date: Mon, 7 Aug 2006 18:13:09 +0200 Subject: [PATCH 059/488] [S390] add __cpuinit to appldata_cpu_notify Use __cpuinit for CPU hotplug notifier function. Signed-off-by: Gerald Schaefer Signed-off-by: Martin Schwidefsky --- arch/s390/appldata/appldata_base.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/s390/appldata/appldata_base.c b/arch/s390/appldata/appldata_base.c index 6a4b5f9715c9..a0a94e0ef8d1 100644 --- a/arch/s390/appldata/appldata_base.c +++ b/arch/s390/appldata/appldata_base.c @@ -618,7 +618,7 @@ appldata_offline_cpu(int cpu) } #ifdef CONFIG_HOTPLUG_CPU -static int +static int __cpuinit appldata_cpu_notify(struct notifier_block *self, unsigned long action, void *hcpu) { From 4b1af774451bbc8440719e3fe441934a337c3b63 Mon Sep 17 00:00:00 2001 From: Kurt Hackel Date: Mon, 26 Jun 2006 15:17:47 -0700 Subject: [PATCH 060/488] ocfs2: Fix lvb corruption Properly ignore LVB flags during a PR downconvert. This avoids an illegal lvb update. Signed-off-by: Kurt Hackel Signed-off-by: Mark Fasheh --- fs/ocfs2/dlm/dlmunlock.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/fs/ocfs2/dlm/dlmunlock.c b/fs/ocfs2/dlm/dlmunlock.c index b0c3134f4f70..4ce3f82fb736 100644 --- a/fs/ocfs2/dlm/dlmunlock.c +++ b/fs/ocfs2/dlm/dlmunlock.c @@ -483,6 +483,10 @@ int dlm_unlock_lock_handler(struct o2net_msg *msg, u32 len, void *data) /* lock was found on queue */ lksb = lock->lksb; + if (flags & (LKM_VALBLK|LKM_PUT_LVB) && + lock->ml.type != LKM_EXMODE) + flags &= ~(LKM_VALBLK|LKM_PUT_LVB); + /* unlockast only called on originating node */ if (flags & LKM_PUT_LVB) { lksb->flags |= DLM_LKSB_PUT_LVB; @@ -632,6 +636,8 @@ retry: spin_lock(&res->spinlock); is_master = (res->owner == dlm->node_num); + if (flags & LKM_VALBLK && lock->ml.type != LKM_EXMODE) + flags &= ~LKM_VALBLK; spin_unlock(&res->spinlock); if (is_master) { From a23eac99d4392b8b779305498d7614e41a0e16e9 Mon Sep 17 00:00:00 2001 From: Kurt Hackel Date: Sun, 18 Jun 2006 21:28:01 -0700 Subject: [PATCH 061/488] ocfs2: do not modify lksb->status in the unlock ast This can race with other ast notification, which can cause bad status values to propagate into the unlock ast. Signed-off-by: Kurt Hackel Signed-off-by: Mark Fasheh --- fs/ocfs2/dlm/dlmunlock.c | 37 ++++++++++++------------------------- 1 file changed, 12 insertions(+), 25 deletions(-) diff --git a/fs/ocfs2/dlm/dlmunlock.c b/fs/ocfs2/dlm/dlmunlock.c index 4ce3f82fb736..59866e471d96 100644 --- a/fs/ocfs2/dlm/dlmunlock.c +++ b/fs/ocfs2/dlm/dlmunlock.c @@ -155,7 +155,7 @@ static enum dlm_status dlmunlock_common(struct dlm_ctxt *dlm, else status = dlm_get_unlock_actions(dlm, res, lock, lksb, &actions); - if (status != DLM_NORMAL) + if (status != DLM_NORMAL && status != DLM_CANCELGRANT) goto leave; /* By now this has been masked out of cancel requests. */ @@ -183,8 +183,7 @@ static enum dlm_status dlmunlock_common(struct dlm_ctxt *dlm, spin_lock(&lock->spinlock); /* if the master told us the lock was already granted, * let the ast handle all of these actions */ - if (status == DLM_NORMAL && - lksb->status == DLM_CANCELGRANT) { + if (status == DLM_CANCELGRANT) { actions &= ~(DLM_UNLOCK_REMOVE_LOCK| DLM_UNLOCK_REGRANT_LOCK| DLM_UNLOCK_CLEAR_CONVERT_TYPE); @@ -349,14 +348,9 @@ static enum dlm_status dlm_send_remote_unlock_request(struct dlm_ctxt *dlm, vec, veclen, owner, &status); if (tmpret >= 0) { // successfully sent and received - if (status == DLM_CANCELGRANT) - ret = DLM_NORMAL; - else if (status == DLM_FORWARD) { + if (status == DLM_FORWARD) mlog(0, "master was in-progress. retry\n"); - ret = DLM_FORWARD; - } else - ret = status; - lksb->status = status; + ret = status; } else { mlog_errno(tmpret); if (dlm_is_host_down(tmpret)) { @@ -372,7 +366,6 @@ static enum dlm_status dlm_send_remote_unlock_request(struct dlm_ctxt *dlm, /* something bad. this will BUG in ocfs2 */ ret = dlm_err_to_dlm_status(tmpret); } - lksb->status = ret; } return ret; @@ -511,11 +504,8 @@ not_found: "cookie=%u:%llu\n", dlm_get_lock_cookie_node(unlock->cookie), dlm_get_lock_cookie_seq(unlock->cookie)); - else { - /* send the lksb->status back to the other node */ - status = lksb->status; + else dlm_lock_put(lock); - } leave: if (res) @@ -537,26 +527,22 @@ static enum dlm_status dlm_get_cancel_actions(struct dlm_ctxt *dlm, if (dlm_lock_on_list(&res->blocked, lock)) { /* cancel this outright */ - lksb->status = DLM_NORMAL; status = DLM_NORMAL; *actions = (DLM_UNLOCK_CALL_AST | DLM_UNLOCK_REMOVE_LOCK); } else if (dlm_lock_on_list(&res->converting, lock)) { /* cancel the request, put back on granted */ - lksb->status = DLM_NORMAL; status = DLM_NORMAL; *actions = (DLM_UNLOCK_CALL_AST | DLM_UNLOCK_REMOVE_LOCK | DLM_UNLOCK_REGRANT_LOCK | DLM_UNLOCK_CLEAR_CONVERT_TYPE); } else if (dlm_lock_on_list(&res->granted, lock)) { - /* too late, already granted. DLM_CANCELGRANT */ - lksb->status = DLM_CANCELGRANT; - status = DLM_NORMAL; + /* too late, already granted. */ + status = DLM_CANCELGRANT; *actions = DLM_UNLOCK_CALL_AST; } else { mlog(ML_ERROR, "lock to cancel is not on any list!\n"); - lksb->status = DLM_IVLOCKID; status = DLM_IVLOCKID; *actions = 0; } @@ -573,13 +559,11 @@ static enum dlm_status dlm_get_unlock_actions(struct dlm_ctxt *dlm, /* unlock request */ if (!dlm_lock_on_list(&res->granted, lock)) { - lksb->status = DLM_DENIED; status = DLM_DENIED; dlm_error(status); *actions = 0; } else { /* unlock granted lock */ - lksb->status = DLM_NORMAL; status = DLM_NORMAL; *actions = (DLM_UNLOCK_FREE_LOCK | DLM_UNLOCK_CALL_AST | @@ -671,7 +655,7 @@ retry: } if (call_ast) { - mlog(0, "calling unlockast(%p, %d)\n", data, lksb->status); + mlog(0, "calling unlockast(%p, %d)\n", data, status); if (is_master) { /* it is possible that there is one last bast * pending. make sure it is flushed, then @@ -683,9 +667,12 @@ retry: wait_event(dlm->ast_wq, dlm_lock_basts_flushed(dlm, lock)); } - (*unlockast)(data, lksb->status); + (*unlockast)(data, status); } + if (status == DLM_CANCELGRANT) + status = DLM_NORMAL; + if (status == DLM_NORMAL) { mlog(0, "kicking the thread\n"); dlm_kick_thread(dlm, res); From 34e3d180370c44ad3ecd3a1f9099e150d3bb103f Mon Sep 17 00:00:00 2001 From: Kurt Hackel Date: Sat, 15 Jul 2006 10:22:39 -0700 Subject: [PATCH 062/488] ocfs2: fix check for locally granted state during dlmunlock() If a process requests a lock cancel but the lock has been remotely granted already then there is no need to send the cancel message. Signed-off-by: Kurt Hackel Signed-off-by: Mark Fasheh --- fs/ocfs2/dlm/dlmunlock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ocfs2/dlm/dlmunlock.c b/fs/ocfs2/dlm/dlmunlock.c index 59866e471d96..37be4b2e0d4a 100644 --- a/fs/ocfs2/dlm/dlmunlock.c +++ b/fs/ocfs2/dlm/dlmunlock.c @@ -155,7 +155,7 @@ static enum dlm_status dlmunlock_common(struct dlm_ctxt *dlm, else status = dlm_get_unlock_actions(dlm, res, lock, lksb, &actions); - if (status != DLM_NORMAL && status != DLM_CANCELGRANT) + if (status != DLM_NORMAL && (status != DLM_CANCELGRANT || !master_node)) goto leave; /* By now this has been masked out of cancel requests. */ From 9acd72f4240429dfd762c9a2c7eb5c18b5d32529 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Sat, 15 Jul 2006 02:36:01 +0200 Subject: [PATCH 063/488] [PATCH] fs/ocfs2/dlm/dlmmaster.c: unexport dlm_migrate_lockres This patch removes the unused EXPORT_SYMBOL_GPL(dlm_migrate_lockres). Signed-off-by: Adrian Bunk Signed-off-by: Mark Fasheh --- fs/ocfs2/dlm/dlmmaster.c | 1 - 1 file changed, 1 deletion(-) diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c index 1b8346dd0572..9503240ef0e5 100644 --- a/fs/ocfs2/dlm/dlmmaster.c +++ b/fs/ocfs2/dlm/dlmmaster.c @@ -2375,7 +2375,6 @@ leave: mlog(0, "returning %d\n", ret); return ret; } -EXPORT_SYMBOL_GPL(dlm_migrate_lockres); int dlm_lock_basts_flushed(struct dlm_ctxt *dlm, struct dlm_lock *lock) { From 101ebf256de54e78e6d3277adacf656e125a2c5a Mon Sep 17 00:00:00 2001 From: Mark Fasheh Date: Tue, 2 May 2006 17:54:45 -0700 Subject: [PATCH 064/488] ocfs2: limit cluster bitmap information saved at mount We were storing cluster count on the ocfs2_super structure, but never actually using it so remove that. Also, we don't want to populate the uptodate cache with the unlocked block read - it is technically safe as is, but we should change it for correctness. Signed-off-by: Mark Fasheh --- fs/ocfs2/ocfs2.h | 1 - fs/ocfs2/super.c | 8 ++++++-- 2 files changed, 6 insertions(+), 3 deletions(-) diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h index cd4a6f253d13..d52100d49b6c 100644 --- a/fs/ocfs2/ocfs2.h +++ b/fs/ocfs2/ocfs2.h @@ -197,7 +197,6 @@ struct ocfs2_super struct ocfs2_node_map recovery_map; struct ocfs2_node_map umount_map; - u32 num_clusters; u64 root_blkno; u64 system_dir_blkno; u64 bitmap_blkno; diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c index 382706a67ffd..d17e33e66a1e 100644 --- a/fs/ocfs2/super.c +++ b/fs/ocfs2/super.c @@ -1442,8 +1442,13 @@ static int ocfs2_initialize_super(struct super_block *sb, osb->bitmap_blkno = OCFS2_I(inode)->ip_blkno; + /* We don't have a cluster lock on the bitmap here because + * we're only interested in static information and the extra + * complexity at mount time isn't worht it. Don't pass the + * inode in to the read function though as we don't want it to + * be put in the cache. */ status = ocfs2_read_block(osb, osb->bitmap_blkno, &bitmap_bh, 0, - inode); + NULL); iput(inode); if (status < 0) { mlog_errno(status); @@ -1452,7 +1457,6 @@ static int ocfs2_initialize_super(struct super_block *sb, di = (struct ocfs2_dinode *) bitmap_bh->b_data; osb->bitmap_cpg = le16_to_cpu(di->id2.i_chain.cl_cpg); - osb->num_clusters = le32_to_cpu(di->id1.bitmap1.i_total); brelse(bitmap_bh); mlog(0, "cluster bitmap inode: %llu, clusters per group: %u\n", (unsigned long long)osb->bitmap_blkno, osb->bitmap_cpg); From 7bf72edee614e10b8d470c40a326f47bfdd69992 Mon Sep 17 00:00:00 2001 From: Mark Fasheh Date: Wed, 3 May 2006 17:46:50 -0700 Subject: [PATCH 065/488] ocfs2: better group descriptor consistency checks Try to catch corrupted group descriptors with some stronger checks placed in a couple of strategic locations. Detect a failed resizefs and refuse to allocate past what bitmap i_clusters allows. Signed-off-by: Mark Fasheh --- fs/ocfs2/suballoc.c | 114 ++++++++++++++++++++++++++++++++++++-------- 1 file changed, 94 insertions(+), 20 deletions(-) diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c index 195523090c87..7ac68cac041d 100644 --- a/fs/ocfs2/suballoc.c +++ b/fs/ocfs2/suballoc.c @@ -85,11 +85,6 @@ static int ocfs2_claim_suballoc_bits(struct ocfs2_super *osb, u64 *bg_blkno); static int ocfs2_test_bg_bit_allocatable(struct buffer_head *bg_bh, int nr); -static int ocfs2_block_group_find_clear_bits(struct ocfs2_super *osb, - struct buffer_head *bg_bh, - unsigned int bits_wanted, - u16 *bit_off, - u16 *bits_found); static inline int ocfs2_block_group_set_bits(struct ocfs2_journal_handle *handle, struct inode *alloc_inode, struct ocfs2_group_desc *bg, @@ -143,6 +138,64 @@ static u32 ocfs2_bits_per_group(struct ocfs2_chain_list *cl) return (u32)le16_to_cpu(cl->cl_cpg) * (u32)le16_to_cpu(cl->cl_bpc); } +/* somewhat more expensive than our other checks, so use sparingly. */ +static int ocfs2_check_group_descriptor(struct super_block *sb, + struct ocfs2_dinode *di, + struct ocfs2_group_desc *gd) +{ + unsigned int max_bits; + + if (!OCFS2_IS_VALID_GROUP_DESC(gd)) { + OCFS2_RO_ON_INVALID_GROUP_DESC(sb, gd); + return -EIO; + } + + if (di->i_blkno != gd->bg_parent_dinode) { + ocfs2_error(sb, "Group descriptor # %llu has bad parent " + "pointer (%llu, expected %llu)", + (unsigned long long)le64_to_cpu(gd->bg_blkno), + (unsigned long long)le64_to_cpu(gd->bg_parent_dinode), + (unsigned long long)le64_to_cpu(di->i_blkno)); + return -EIO; + } + + max_bits = le16_to_cpu(di->id2.i_chain.cl_cpg) * le16_to_cpu(di->id2.i_chain.cl_bpc); + if (le16_to_cpu(gd->bg_bits) > max_bits) { + ocfs2_error(sb, "Group descriptor # %llu has bit count of %u", + (unsigned long long)le64_to_cpu(gd->bg_blkno), + le16_to_cpu(gd->bg_bits)); + return -EIO; + } + + if (le16_to_cpu(gd->bg_chain) >= + le16_to_cpu(di->id2.i_chain.cl_next_free_rec)) { + ocfs2_error(sb, "Group descriptor # %llu has bad chain %u", + (unsigned long long)le64_to_cpu(gd->bg_blkno), + le16_to_cpu(gd->bg_chain)); + return -EIO; + } + + if (le16_to_cpu(gd->bg_free_bits_count) > le16_to_cpu(gd->bg_bits)) { + ocfs2_error(sb, "Group descriptor # %llu has bit count %u but " + "claims that %u are free", + (unsigned long long)le64_to_cpu(gd->bg_blkno), + le16_to_cpu(gd->bg_bits), + le16_to_cpu(gd->bg_free_bits_count)); + return -EIO; + } + + if (le16_to_cpu(gd->bg_bits) > (8 * le16_to_cpu(gd->bg_size))) { + ocfs2_error(sb, "Group descriptor # %llu has bit count %u but " + "max bitmap bits of %u", + (unsigned long long)le64_to_cpu(gd->bg_blkno), + le16_to_cpu(gd->bg_bits), + 8 * le16_to_cpu(gd->bg_size)); + return -EIO; + } + + return 0; +} + static int ocfs2_block_group_fill(struct ocfs2_journal_handle *handle, struct inode *alloc_inode, struct buffer_head *bg_bh, @@ -663,6 +716,7 @@ static int ocfs2_test_bg_bit_allocatable(struct buffer_head *bg_bh, static int ocfs2_block_group_find_clear_bits(struct ocfs2_super *osb, struct buffer_head *bg_bh, unsigned int bits_wanted, + unsigned int total_bits, u16 *bit_off, u16 *bits_found) { @@ -679,10 +733,8 @@ static int ocfs2_block_group_find_clear_bits(struct ocfs2_super *osb, found = start = best_offset = best_size = 0; bitmap = bg->bg_bitmap; - while((offset = ocfs2_find_next_zero_bit(bitmap, - le16_to_cpu(bg->bg_bits), - start)) != -1) { - if (offset == le16_to_cpu(bg->bg_bits)) + while((offset = ocfs2_find_next_zero_bit(bitmap, total_bits, start)) != -1) { + if (offset == total_bits) break; if (!ocfs2_test_bg_bit_allocatable(bg_bh, offset)) { @@ -911,14 +963,35 @@ static int ocfs2_cluster_group_search(struct inode *inode, { int search = -ENOSPC; int ret; - struct ocfs2_group_desc *bg = (struct ocfs2_group_desc *) group_bh->b_data; + struct ocfs2_group_desc *gd = (struct ocfs2_group_desc *) group_bh->b_data; u16 tmp_off, tmp_found; + unsigned int max_bits, gd_cluster_off; BUG_ON(!ocfs2_is_cluster_bitmap(inode)); - if (bg->bg_free_bits_count) { + if (gd->bg_free_bits_count) { + max_bits = le16_to_cpu(gd->bg_bits); + + /* Tail groups in cluster bitmaps which aren't cpg + * aligned are prone to partial extention by a failed + * fs resize. If the file system resize never got to + * update the dinode cluster count, then we don't want + * to trust any clusters past it, regardless of what + * the group descriptor says. */ + gd_cluster_off = ocfs2_blocks_to_clusters(inode->i_sb, + le64_to_cpu(gd->bg_blkno)); + if ((gd_cluster_off + max_bits) > + OCFS2_I(inode)->ip_clusters) { + max_bits = OCFS2_I(inode)->ip_clusters - gd_cluster_off; + mlog(0, "Desc %llu, bg_bits %u, clusters %u, use %u\n", + (unsigned long long)le64_to_cpu(gd->bg_blkno), + le16_to_cpu(gd->bg_bits), + OCFS2_I(inode)->ip_clusters, max_bits); + } + ret = ocfs2_block_group_find_clear_bits(OCFS2_SB(inode->i_sb), group_bh, bits_wanted, + max_bits, &tmp_off, &tmp_found); if (ret) return ret; @@ -951,6 +1024,7 @@ static int ocfs2_block_group_search(struct inode *inode, if (bg->bg_free_bits_count) ret = ocfs2_block_group_find_clear_bits(OCFS2_SB(inode->i_sb), group_bh, bits_wanted, + le16_to_cpu(bg->bg_bits), bit_off, bits_found); return ret; @@ -988,9 +1062,9 @@ static int ocfs2_search_chain(struct ocfs2_alloc_context *ac, goto bail; } bg = (struct ocfs2_group_desc *) group_bh->b_data; - if (!OCFS2_IS_VALID_GROUP_DESC(bg)) { - OCFS2_RO_ON_INVALID_GROUP_DESC(alloc_inode->i_sb, bg); - status = -EIO; + status = ocfs2_check_group_descriptor(alloc_inode->i_sb, fe, bg); + if (status) { + mlog_errno(status); goto bail; } @@ -1018,9 +1092,9 @@ static int ocfs2_search_chain(struct ocfs2_alloc_context *ac, goto bail; } bg = (struct ocfs2_group_desc *) group_bh->b_data; - if (!OCFS2_IS_VALID_GROUP_DESC(bg)) { - OCFS2_RO_ON_INVALID_GROUP_DESC(alloc_inode->i_sb, bg); - status = -EIO; + status = ocfs2_check_group_descriptor(alloc_inode->i_sb, fe, bg); + if (status) { + mlog_errno(status); goto bail; } } @@ -1494,9 +1568,9 @@ static int ocfs2_free_suballoc_bits(struct ocfs2_journal_handle *handle, } group = (struct ocfs2_group_desc *) group_bh->b_data; - if (!OCFS2_IS_VALID_GROUP_DESC(group)) { - OCFS2_RO_ON_INVALID_GROUP_DESC(alloc_inode->i_sb, group); - status = -EIO; + status = ocfs2_check_group_descriptor(alloc_inode->i_sb, fe, group); + if (status) { + mlog_errno(status); goto bail; } BUG_ON((count + start_bit) > le16_to_cpu(group->bg_bits)); From 883d4cae4a2b01a05193cf2665c77b7489a8b6a0 Mon Sep 17 00:00:00 2001 From: Mark Fasheh Date: Mon, 5 Jun 2006 16:41:00 -0400 Subject: [PATCH 066/488] ocfs2: allocation hints Record the most recently used allocation group on the allocation context, so that subsequent allocations can attempt to optimize for contiguousness. Local alloc especially should benefit from this as the current chain search tends to let it spew across the disk. Signed-off-by: Mark Fasheh --- fs/ocfs2/localalloc.c | 8 +++ fs/ocfs2/ocfs2.h | 1 + fs/ocfs2/suballoc.c | 147 ++++++++++++++++++++++++++++++++++++++---- fs/ocfs2/suballoc.h | 2 + 4 files changed, 145 insertions(+), 13 deletions(-) diff --git a/fs/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c index 0d1973ea32b0..1f17a4d08287 100644 --- a/fs/ocfs2/localalloc.c +++ b/fs/ocfs2/localalloc.c @@ -840,6 +840,12 @@ static int ocfs2_local_alloc_new_window(struct ocfs2_super *osb, mlog(0, "Allocating %u clusters for a new window.\n", ocfs2_local_alloc_window_bits(osb)); + + /* Instruct the allocation code to try the most recently used + * cluster group. We'll re-record the group used this pass + * below. */ + ac->ac_last_group = osb->la_last_gd; + /* we used the generic suballoc reserve function, but we set * everything up nicely, so there's no reason why we can't use * the more specific cluster api to claim bits. */ @@ -852,6 +858,8 @@ static int ocfs2_local_alloc_new_window(struct ocfs2_super *osb, goto bail; } + osb->la_last_gd = ac->ac_last_group; + la->la_bm_off = cpu_to_le32(cluster_off); alloc->id1.bitmap1.i_total = cpu_to_le32(cluster_count); /* just in case... In the future when we find space ourselves, diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h index d52100d49b6c..0462a7f4e21b 100644 --- a/fs/ocfs2/ocfs2.h +++ b/fs/ocfs2/ocfs2.h @@ -236,6 +236,7 @@ struct ocfs2_super enum ocfs2_local_alloc_state local_alloc_state; struct buffer_head *local_alloc_bh; + u64 la_last_gd; /* Next two fields are for local node slot recovery during * mount. */ diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c index 7ac68cac041d..9d91e66f51a9 100644 --- a/fs/ocfs2/suballoc.c +++ b/fs/ocfs2/suballoc.c @@ -70,12 +70,6 @@ static int ocfs2_block_group_search(struct inode *inode, struct buffer_head *group_bh, u32 bits_wanted, u32 min_bits, u16 *bit_off, u16 *bits_found); -static int ocfs2_search_chain(struct ocfs2_alloc_context *ac, - u32 bits_wanted, - u32 min_bits, - u16 *bit_off, - unsigned int *num_bits, - u64 *bg_blkno); static int ocfs2_claim_suballoc_bits(struct ocfs2_super *osb, struct ocfs2_alloc_context *ac, u32 bits_wanted, @@ -1030,12 +1024,103 @@ static int ocfs2_block_group_search(struct inode *inode, return ret; } +static int ocfs2_alloc_dinode_update_counts(struct inode *inode, + struct ocfs2_journal_handle *handle, + struct buffer_head *di_bh, + u32 num_bits, + u16 chain) +{ + int ret; + u32 tmp_used; + struct ocfs2_dinode *di = (struct ocfs2_dinode *) di_bh->b_data; + struct ocfs2_chain_list *cl = (struct ocfs2_chain_list *) &di->id2.i_chain; + + ret = ocfs2_journal_access(handle, inode, di_bh, + OCFS2_JOURNAL_ACCESS_WRITE); + if (ret < 0) { + mlog_errno(ret); + goto out; + } + + tmp_used = le32_to_cpu(di->id1.bitmap1.i_used); + di->id1.bitmap1.i_used = cpu_to_le32(num_bits + tmp_used); + le32_add_cpu(&cl->cl_recs[chain].c_free, -num_bits); + + ret = ocfs2_journal_dirty(handle, di_bh); + if (ret < 0) + mlog_errno(ret); + +out: + return ret; +} + +static int ocfs2_search_one_group(struct ocfs2_alloc_context *ac, + u32 bits_wanted, + u32 min_bits, + u16 *bit_off, + unsigned int *num_bits, + u64 gd_blkno, + u16 *bits_left) +{ + int ret; + u16 found; + struct buffer_head *group_bh = NULL; + struct ocfs2_group_desc *gd; + struct inode *alloc_inode = ac->ac_inode; + struct ocfs2_journal_handle *handle = ac->ac_handle; + + ret = ocfs2_read_block(OCFS2_SB(alloc_inode->i_sb), gd_blkno, + &group_bh, OCFS2_BH_CACHED, alloc_inode); + if (ret < 0) { + mlog_errno(ret); + return ret; + } + + gd = (struct ocfs2_group_desc *) group_bh->b_data; + if (!OCFS2_IS_VALID_GROUP_DESC(gd)) { + OCFS2_RO_ON_INVALID_GROUP_DESC(alloc_inode->i_sb, gd); + ret = -EIO; + goto out; + } + + ret = ac->ac_group_search(alloc_inode, group_bh, bits_wanted, min_bits, + bit_off, &found); + if (ret < 0) { + if (ret != -ENOSPC) + mlog_errno(ret); + goto out; + } + + *num_bits = found; + + ret = ocfs2_alloc_dinode_update_counts(alloc_inode, handle, ac->ac_bh, + *num_bits, + le16_to_cpu(gd->bg_chain)); + if (ret < 0) { + mlog_errno(ret); + goto out; + } + + ret = ocfs2_block_group_set_bits(handle, alloc_inode, gd, group_bh, + *bit_off, *num_bits); + if (ret < 0) + mlog_errno(ret); + + *bits_left = le16_to_cpu(gd->bg_free_bits_count); + +out: + brelse(group_bh); + + return ret; +} + static int ocfs2_search_chain(struct ocfs2_alloc_context *ac, u32 bits_wanted, u32 min_bits, u16 *bit_off, unsigned int *num_bits, - u64 *bg_blkno) + u64 *bg_blkno, + u16 *bits_left) { int status; u16 chain, tmp_bits; @@ -1173,6 +1258,7 @@ static int ocfs2_search_chain(struct ocfs2_alloc_context *ac, (unsigned long long)fe->i_blkno); *bg_blkno = le64_to_cpu(bg->bg_blkno); + *bits_left = le16_to_cpu(bg->bg_free_bits_count); bail: if (group_bh) brelse(group_bh); @@ -1194,6 +1280,8 @@ static int ocfs2_claim_suballoc_bits(struct ocfs2_super *osb, { int status; u16 victim, i; + u16 bits_left = 0; + u64 hint_blkno = ac->ac_last_group; struct ocfs2_chain_list *cl; struct ocfs2_dinode *fe; @@ -1220,6 +1308,28 @@ static int ocfs2_claim_suballoc_bits(struct ocfs2_super *osb, goto bail; } + if (hint_blkno) { + /* Attempt to short-circuit the usual search mechanism + * by jumping straight to the most recently used + * allocation group. This helps us mantain some + * contiguousness across allocations. */ + status = ocfs2_search_one_group(ac, bits_wanted, min_bits, + bit_off, num_bits, + hint_blkno, &bits_left); + if (!status) { + /* Be careful to update *bg_blkno here as the + * caller is expecting it to be filled in, and + * ocfs2_search_one_group() won't do that for + * us. */ + *bg_blkno = hint_blkno; + goto set_hint; + } + if (status < 0 && status != -ENOSPC) { + mlog_errno(status); + goto bail; + } + } + cl = (struct ocfs2_chain_list *) &fe->id2.i_chain; victim = ocfs2_find_victim_chain(cl); @@ -1227,9 +1337,9 @@ static int ocfs2_claim_suballoc_bits(struct ocfs2_super *osb, ac->ac_allow_chain_relink = 1; status = ocfs2_search_chain(ac, bits_wanted, min_bits, bit_off, - num_bits, bg_blkno); + num_bits, bg_blkno, &bits_left); if (!status) - goto bail; + goto set_hint; if (status < 0 && status != -ENOSPC) { mlog_errno(status); goto bail; @@ -1251,8 +1361,8 @@ static int ocfs2_claim_suballoc_bits(struct ocfs2_super *osb, ac->ac_chain = i; status = ocfs2_search_chain(ac, bits_wanted, min_bits, - bit_off, num_bits, - bg_blkno); + bit_off, num_bits, bg_blkno, + &bits_left); if (!status) break; if (status < 0 && status != -ENOSPC) { @@ -1260,8 +1370,19 @@ static int ocfs2_claim_suballoc_bits(struct ocfs2_super *osb, goto bail; } } -bail: +set_hint: + if (status != -ENOSPC) { + /* If the next search of this group is not likely to + * yield a suitable extent, then we reset the last + * group hint so as to not waste a disk read */ + if (bits_left < min_bits) + ac->ac_last_group = 0; + else + ac->ac_last_group = *bg_blkno; + } + +bail: mlog_exit(status); return status; } @@ -1415,7 +1536,7 @@ int ocfs2_claim_clusters(struct ocfs2_super *osb, { int status; unsigned int bits_wanted = ac->ac_bits_wanted - ac->ac_bits_given; - u64 bg_blkno; + u64 bg_blkno = 0; u16 bg_bit_off; mlog_entry_void(); diff --git a/fs/ocfs2/suballoc.h b/fs/ocfs2/suballoc.h index a76c82a7ceac..c787838d1052 100644 --- a/fs/ocfs2/suballoc.h +++ b/fs/ocfs2/suballoc.h @@ -49,6 +49,8 @@ struct ocfs2_alloc_context { u16 ac_chain; int ac_allow_chain_relink; group_search_t *ac_group_search; + + u64 ac_last_group; }; void ocfs2_free_alloc_context(struct ocfs2_alloc_context *ac); From 58a2f7d85aaf4c41157f15c43a913b5c3c6b3adb Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Mon, 7 Aug 2006 20:58:28 +0200 Subject: [PATCH 067/488] kbuild: do not try to build content of initramfs When a file supplied via CONFIG_INITRAMFS pointed to a file for which kbuild had a rule to compile it (foo.c => foo.o) then kbuild would compile the file before adding the file to the initramfs. Teach make that files included in initramfs shall not be updated by adding an 'empty command'. (See "Using Empty Commands" in info make). Signed-off-by: Sam Ravnborg --- usr/Makefile | 3 +++ 1 file changed, 3 insertions(+) diff --git a/usr/Makefile b/usr/Makefile index e93824269da2..5b31c0b61c76 100644 --- a/usr/Makefile +++ b/usr/Makefile @@ -35,6 +35,9 @@ quiet_cmd_initfs = GEN $@ cmd_initfs = $(initramfs) -o $@ $(ramfs-args) $(ramfs-input) targets := initramfs_data.cpio.gz +# do not try to update files included in initramfs +$(deps_initramfs): ; + $(deps_initramfs): klibcdirs # We rebuild initramfs_data.cpio.gz if: # 1) Any included file is newer then initramfs_data.cpio.gz From 9ee4e3365dd0dab4c1e02fe44dc08a223b826c72 Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Mon, 7 Aug 2006 21:01:36 +0200 Subject: [PATCH 068/488] kbuild: external modules shall not check config consistency external modules needs include/linux/autoconf.h and include/config/auto.conf but skip the integrity test of these. Even with a newer Kconfig file we shall just proceed since external modules simply uses the kernel source and shall not attempt to modify it. Error out if a config fiel is missing since they are mandatory. Signed-off-by: Sam Ravnborg --- Makefile | 24 ++++++++++++++++++------ 1 file changed, 18 insertions(+), 6 deletions(-) diff --git a/Makefile b/Makefile index 110db856e966..e71fefd220a7 100644 --- a/Makefile +++ b/Makefile @@ -436,12 +436,13 @@ core-y := usr/ endif # KBUILD_EXTMOD ifeq ($(dot-config),1) -# In this section, we need .config +# Read in config +-include include/config/auto.conf +ifeq ($(KBUILD_EXTMOD),) # Read in dependencies to all Kconfig* files, make sure to run # oldconfig if changes are detected. -include include/config/auto.conf.cmd --include include/config/auto.conf # To avoid any implicit rule to kick in, define an empty command $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; @@ -451,16 +452,27 @@ $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; # if auto.conf.cmd is missing then we are probably in a cleaned tree so # we execute the config step to be sure to catch updated Kconfig files include/config/auto.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd -ifeq ($(KBUILD_EXTMOD),) $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig else - $(error kernel configuration not valid - run 'make prepare' in $(srctree) to update it) -endif +# external modules needs include/linux/autoconf.h and include/config/auto.conf +# but do not care if they are up-to-date. Use auto.conf to trigger the test +PHONY += include/config/auto.conf + +include/config/auto.conf: + $(Q)test -e include/linux/autoconf.h -a -e $@ || ( \ + echo; \ + echo " ERROR: Kernel configuration is invalid."; \ + echo " include/linux/autoconf.h or $@ are missing."; \ + echo " Run 'make oldconfig && make prepare' on kernel src to fix it."; \ + echo; \ + /bin/false) + +endif # KBUILD_EXTMOD else # Dummy target needed, because used as prerequisite include/config/auto.conf: ; -endif +endif # $(dot-config) # The all: target is the default when no target is given on the # command line. From 766ea8cce007e699679109df4fa469b870ba4860 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 7 Aug 2006 15:49:53 -0700 Subject: [PATCH 069/488] [NET]: Fix alloc_skb comment typo Signed-off-by: Christoph Hellwig Signed-off-by: David S. Miller --- include/linux/skbuff.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 19c96d498e20..3573ba9a2555 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -1081,7 +1081,7 @@ static inline void __skb_queue_purge(struct sk_buff_head *list) * the headroom they think they need without accounting for the * built in space. The built in space is used for optimisations. * - * %NULL is returned in there is no free memory. + * %NULL is returned if there is no free memory. */ static inline struct sk_buff *__dev_alloc_skb(unsigned int length, gfp_t gfp_mask) @@ -1101,7 +1101,7 @@ static inline struct sk_buff *__dev_alloc_skb(unsigned int length, * the headroom they think they need without accounting for the * built in space. The built in space is used for optimisations. * - * %NULL is returned in there is no free memory. Although this function + * %NULL is returned if there is no free memory. Although this function * allocates memory it can be called from an interrupt. */ static inline struct sk_buff *dev_alloc_skb(unsigned int length) From 7b2e497a06c0e93719fda88820e057b635e8fae2 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 7 Aug 2006 16:09:04 -0700 Subject: [PATCH 070/488] [NET]: Assign skb->dev in netdev_alloc_skb Signed-off-by: Christoph Hellwig Signed-off-by: David S. Miller --- net/core/skbuff.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 022d8894c11d..c54f3664bce5 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -268,8 +268,10 @@ struct sk_buff *__netdev_alloc_skb(struct net_device *dev, struct sk_buff *skb; skb = alloc_skb(length + NET_SKB_PAD, gfp_mask); - if (likely(skb)) + if (likely(skb)) { skb_reserve(skb, NET_SKB_PAD); + skb->dev = dev; + } return skb; } From d14cc9a342a8004b0ecfe66f1f12120962b61d8c Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 7 Aug 2006 16:11:48 -0700 Subject: [PATCH 071/488] [TG3]: skb->dev assignment is done by netdev_alloc_skb All caller of netdev_alloc_skb need to assign skb->dev shortly afterwards. Move it into common code. Signed-off-by: Christoph Hellwig Signed-off-by: David S. Miller --- drivers/net/tg3.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index 6f97962dd06b..0afbed6753fa 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -3101,7 +3101,6 @@ static int tg3_alloc_rx_skb(struct tg3 *tp, u32 opaque_key, if (skb == NULL) return -ENOMEM; - skb->dev = tp->dev; skb_reserve(skb, tp->rx_offset); mapping = pci_map_single(tp->pdev, skb->data, @@ -3274,7 +3273,6 @@ static int tg3_rx(struct tg3 *tp, int budget) if (copy_skb == NULL) goto drop_it_no_recycle; - copy_skb->dev = tp->dev; skb_reserve(copy_skb, 2); skb_put(copy_skb, len); pci_dma_sync_single_for_cpu(tp->pdev, dma_addr, len, PCI_DMA_FROMDEVICE); From 8b5cc5ef40c83c6ea4c90b203bb2c8b17edfa11b Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Mon, 7 Aug 2006 20:09:20 -0700 Subject: [PATCH 072/488] [IPX]: Header length validation needed This patch will linearize and check there is enough data. It handles the pprop case as well as avoiding a whole audit of the routing code. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller --- net/ipx/af_ipx.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/ipx/af_ipx.c b/net/ipx/af_ipx.c index aa34ff4b707c..c13e86b14f69 100644 --- a/net/ipx/af_ipx.c +++ b/net/ipx/af_ipx.c @@ -1646,7 +1646,8 @@ static int ipx_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_ty ipx_pktsize = ntohs(ipx->ipx_pktsize); /* Too small or invalid header? */ - if (ipx_pktsize < sizeof(struct ipxhdr) || ipx_pktsize > skb->len) + if (ipx_pktsize < sizeof(struct ipxhdr) || + !pskb_may_pull(skb, ipx_pktsize)) goto drop; if (ipx->ipx_checksum != IPX_NO_CHECKSUM && From 8d1502de27c46b365b5c86e17d173083d3d6c9ac Mon Sep 17 00:00:00 2001 From: Kirill Korotaev Date: Mon, 7 Aug 2006 20:44:22 -0700 Subject: [PATCH 073/488] [IPV4]: Limit rt cache size properly. From: Kirill Korotaev During OpenVZ stress testing we found that UDP traffic with random src can generate too much excessive rt hash growing leading finally to OOM and kernel panics. It was found that for 4GB i686 system (having 1048576 total pages and 225280 normal zone pages) kernel allocates the following route hash: syslog: IP route cache hash table entries: 262144 (order: 8, 1048576 bytes) => ip_rt_max_size = 4194304 entries, i.e. max rt size is 4194304 * 256b = 1Gb of RAM > normal_zone Attached the patch which removes HASH_HIGHMEM flag from alloc_large_system_hash() call. Signed-off-by: David S. Miller --- net/ipv4/route.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 19bd49d69d9f..b873cbcdd0b8 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -3157,7 +3157,7 @@ int __init ip_rt_init(void) rhash_entries, (num_physpages >= 128 * 1024) ? 15 : 17, - HASH_HIGHMEM, + 0, &rt_hash_log, &rt_hash_mask, 0); From aaf580601ff244df82324fff380ed6740f27ef03 Mon Sep 17 00:00:00 2001 From: Chen-Li Tien Date: Mon, 7 Aug 2006 20:49:07 -0700 Subject: [PATCH 074/488] [PKTGEN]: Fix oops when used with balance-tlb bonding Signed-off-by: Chen-Li Tien Signed-off-by: David S. Miller --- net/core/pktgen.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/core/pktgen.c b/net/core/pktgen.c index 67ed14ddabd2..b1743375eb6d 100644 --- a/net/core/pktgen.c +++ b/net/core/pktgen.c @@ -2149,6 +2149,8 @@ static struct sk_buff *fill_packet_ipv4(struct net_device *odev, skb->mac.raw = ((u8 *) iph) - 14 - pkt_dev->nr_labels*sizeof(u32); skb->dev = odev; skb->pkt_type = PACKET_HOST; + skb->nh.iph = iph; + skb->h.uh = udph; if (pkt_dev->nfrags <= 0) pgh = (struct pktgen_hdr *)skb_put(skb, datalen); From 69d8c28c9578ce78b3dc1b9be36926d962282898 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Mon, 7 Aug 2006 20:52:10 -0700 Subject: [PATCH 075/488] [PKTGEN]: Make sure skb->{nh,h} are initialized in fill_packet_ipv6() too. Mirror the bug fix from fill_packet_ipv4() Signed-off-by: David S. Miller --- net/core/pktgen.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/core/pktgen.c b/net/core/pktgen.c index b1743375eb6d..6a7320b39ed0 100644 --- a/net/core/pktgen.c +++ b/net/core/pktgen.c @@ -2462,6 +2462,8 @@ static struct sk_buff *fill_packet_ipv6(struct net_device *odev, skb->protocol = protocol; skb->dev = odev; skb->pkt_type = PACKET_HOST; + skb->nh.ipv6h = iph; + skb->h.uh = udph; if (pkt_dev->nfrags <= 0) pgh = (struct pktgen_hdr *)skb_put(skb, datalen); From bd37a088596ccdb2b2dd3299e25e333bca7a9a34 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Mon, 7 Aug 2006 21:04:15 -0700 Subject: [PATCH 076/488] [TCP]: SNMPv2 tcpOutSegs counter error Do not count retransmitted segments. Signed-off-by: Wei Yongjun Signed-off-by: David S. Miller --- net/ipv4/tcp_output.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 5c08ea20a18d..507adefbc17c 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -466,7 +466,8 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, int clone_it, if (skb->len != tcp_header_size) tcp_event_data_sent(tp, skb, sk); - TCP_INC_STATS(TCP_MIB_OUTSEGS); + if (after(tcb->end_seq, tp->snd_nxt) || tcb->seq == tcb->end_seq) + TCP_INC_STATS(TCP_MIB_OUTSEGS); err = icsk->icsk_af_ops->queue_xmit(skb, 0); if (likely(err <= 0)) @@ -2157,10 +2158,9 @@ int tcp_connect(struct sock *sk) skb_shinfo(buff)->gso_size = 0; skb_shinfo(buff)->gso_type = 0; buff->csum = 0; + tp->snd_nxt = tp->write_seq; TCP_SKB_CB(buff)->seq = tp->write_seq++; TCP_SKB_CB(buff)->end_seq = tp->write_seq; - tp->snd_nxt = tp->write_seq; - tp->pushed_seq = tp->write_seq; /* Send it off. */ TCP_SKB_CB(buff)->when = tcp_time_stamp; @@ -2170,6 +2170,12 @@ int tcp_connect(struct sock *sk) sk_charge_skb(sk, buff); tp->packets_out += tcp_skb_pcount(buff); tcp_transmit_skb(sk, buff, 1, GFP_KERNEL); + + /* We change tp->snd_nxt after the tcp_transmit_skb() call + * in order to make this packet get counted in tcpOutSegs. + */ + tp->snd_nxt = tp->write_seq; + tp->pushed_seq = tp->write_seq; TCP_INC_STATS(TCP_MIB_ACTIVEOPENS); /* Timer for repeating the SYN until an answer. */ From 1b2a720506ccf7c30baaeda5d990c29b31e21726 Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Mon, 7 Aug 2006 21:46:02 -0700 Subject: [PATCH 077/488] [TG3]: Fix tx race condition Fix a subtle race condition between tg3_start_xmit() and tg3_tx() discovered by Herbert Xu : CPU0 CPU1 tg3_start_xmit() if (tx_ring_full) { tx_lock tg3_tx() if (!netif_queue_stopped) netif_stop_queue() if (!tx_ring_full) update_tx_ring netif_wake_queue() tx_unlock } Even though tx_ring is updated before the if statement in tg3_tx() in program order, it can be re-ordered by the CPU as shown above. This scenario can cause the tx queue to be stopped forever if tg3_tx() has just freed up the entire tx_ring. The possibility of this happening should be very rare though. The following changes are made: 1. Add memory barrier to fix the above race condition. 2. Eliminate the private tx_lock altogether and rely solely on netif_tx_lock. This eliminates one spinlock in tg3_start_xmit() when the ring is full. 3. Because of 2, use netif_tx_lock in tg3_tx() before calling netif_wake_queue(). 4. Change TX_BUFFS_AVAIL to an inline function with a memory barrier. Herbert and David suggested using the memory barrier instead of volatile. 5. Check for the full wake queue condition before getting netif_tx_lock in tg3_tx(). This reduces the number of unnecessary spinlocks when the tx ring is full in a steady-state condition. 6. Update version to 3.65. Signed-off-by: Michael Chan Acked-by: Herbert Xu Signed-off-by: David S. Miller --- drivers/net/tg3.c | 49 +++++++++++++++++++++++++++-------------------- drivers/net/tg3.h | 8 +++----- 2 files changed, 31 insertions(+), 26 deletions(-) diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index 0afbed6753fa..eafabb253f08 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -68,8 +68,8 @@ #define DRV_MODULE_NAME "tg3" #define PFX DRV_MODULE_NAME ": " -#define DRV_MODULE_VERSION "3.64" -#define DRV_MODULE_RELDATE "July 31, 2006" +#define DRV_MODULE_VERSION "3.65" +#define DRV_MODULE_RELDATE "August 07, 2006" #define TG3_DEF_MAC_MODE 0 #define TG3_DEF_RX_MODE 0 @@ -123,9 +123,6 @@ TG3_RX_RCB_RING_SIZE(tp)) #define TG3_TX_RING_BYTES (sizeof(struct tg3_tx_buffer_desc) * \ TG3_TX_RING_SIZE) -#define TX_BUFFS_AVAIL(TP) \ - ((TP)->tx_pending - \ - (((TP)->tx_prod - (TP)->tx_cons) & (TG3_TX_RING_SIZE - 1))) #define NEXT_TX(N) (((N) + 1) & (TG3_TX_RING_SIZE - 1)) #define RX_PKT_BUF_SZ (1536 + tp->rx_offset + 64) @@ -2987,6 +2984,13 @@ static void tg3_tx_recover(struct tg3 *tp) spin_unlock(&tp->lock); } +static inline u32 tg3_tx_avail(struct tg3 *tp) +{ + smp_mb(); + return (tp->tx_pending - + ((tp->tx_prod - tp->tx_cons) & (TG3_TX_RING_SIZE - 1))); +} + /* Tigon3 never reports partial packet sends. So we do not * need special logic to handle SKBs that have not had all * of their frags sent yet, like SunGEM does. @@ -3038,12 +3042,20 @@ static void tg3_tx(struct tg3 *tp) tp->tx_cons = sw_idx; - if (unlikely(netif_queue_stopped(tp->dev))) { - spin_lock(&tp->tx_lock); + /* Need to make the tx_cons update visible to tg3_start_xmit() + * before checking for netif_queue_stopped(). Without the + * memory barrier, there is a small possibility that tg3_start_xmit() + * will miss it and cause the queue to be stopped forever. + */ + smp_mb(); + + if (unlikely(netif_queue_stopped(tp->dev) && + (tg3_tx_avail(tp) > TG3_TX_WAKEUP_THRESH))) { + netif_tx_lock(tp->dev); if (netif_queue_stopped(tp->dev) && - (TX_BUFFS_AVAIL(tp) > TG3_TX_WAKEUP_THRESH)) + (tg3_tx_avail(tp) > TG3_TX_WAKEUP_THRESH)) netif_wake_queue(tp->dev); - spin_unlock(&tp->tx_lock); + netif_tx_unlock(tp->dev); } } @@ -3795,7 +3807,7 @@ static int tg3_start_xmit(struct sk_buff *skb, struct net_device *dev) * interrupt. Furthermore, IRQ processing runs lockless so we have * no IRQ context deadlocks to worry about either. Rejoice! */ - if (unlikely(TX_BUFFS_AVAIL(tp) <= (skb_shinfo(skb)->nr_frags + 1))) { + if (unlikely(tg3_tx_avail(tp) <= (skb_shinfo(skb)->nr_frags + 1))) { if (!netif_queue_stopped(dev)) { netif_stop_queue(dev); @@ -3891,12 +3903,10 @@ static int tg3_start_xmit(struct sk_buff *skb, struct net_device *dev) tw32_tx_mbox((MAILBOX_SNDHOST_PROD_IDX_0 + TG3_64BIT_REG_LOW), entry); tp->tx_prod = entry; - if (unlikely(TX_BUFFS_AVAIL(tp) <= (MAX_SKB_FRAGS + 1))) { - spin_lock(&tp->tx_lock); + if (unlikely(tg3_tx_avail(tp) <= (MAX_SKB_FRAGS + 1))) { netif_stop_queue(dev); - if (TX_BUFFS_AVAIL(tp) > TG3_TX_WAKEUP_THRESH) + if (tg3_tx_avail(tp) > TG3_TX_WAKEUP_THRESH) netif_wake_queue(tp->dev); - spin_unlock(&tp->tx_lock); } out_unlock: @@ -3918,7 +3928,7 @@ static int tg3_tso_bug(struct tg3 *tp, struct sk_buff *skb) struct sk_buff *segs, *nskb; /* Estimate the number of fragments in the worst case */ - if (unlikely(TX_BUFFS_AVAIL(tp) <= (skb_shinfo(skb)->gso_segs * 3))) { + if (unlikely(tg3_tx_avail(tp) <= (skb_shinfo(skb)->gso_segs * 3))) { netif_stop_queue(tp->dev); return NETDEV_TX_BUSY; } @@ -3958,7 +3968,7 @@ static int tg3_start_xmit_dma_bug(struct sk_buff *skb, struct net_device *dev) * interrupt. Furthermore, IRQ processing runs lockless so we have * no IRQ context deadlocks to worry about either. Rejoice! */ - if (unlikely(TX_BUFFS_AVAIL(tp) <= (skb_shinfo(skb)->nr_frags + 1))) { + if (unlikely(tg3_tx_avail(tp) <= (skb_shinfo(skb)->nr_frags + 1))) { if (!netif_queue_stopped(dev)) { netif_stop_queue(dev); @@ -4108,12 +4118,10 @@ static int tg3_start_xmit_dma_bug(struct sk_buff *skb, struct net_device *dev) tw32_tx_mbox((MAILBOX_SNDHOST_PROD_IDX_0 + TG3_64BIT_REG_LOW), entry); tp->tx_prod = entry; - if (unlikely(TX_BUFFS_AVAIL(tp) <= (MAX_SKB_FRAGS + 1))) { - spin_lock(&tp->tx_lock); + if (unlikely(tg3_tx_avail(tp) <= (MAX_SKB_FRAGS + 1))) { netif_stop_queue(dev); - if (TX_BUFFS_AVAIL(tp) > TG3_TX_WAKEUP_THRESH) + if (tg3_tx_avail(tp) > TG3_TX_WAKEUP_THRESH) netif_wake_queue(tp->dev); - spin_unlock(&tp->tx_lock); } out_unlock: @@ -11472,7 +11480,6 @@ static int __devinit tg3_init_one(struct pci_dev *pdev, tp->grc_mode |= GRC_MODE_BSWAP_NONFRM_DATA; #endif spin_lock_init(&tp->lock); - spin_lock_init(&tp->tx_lock); spin_lock_init(&tp->indirect_lock); INIT_WORK(&tp->reset_task, tg3_reset_task, tp); diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h index ba2c98711c88..3ecf356cfb08 100644 --- a/drivers/net/tg3.h +++ b/drivers/net/tg3.h @@ -2079,9 +2079,9 @@ struct tg3 { * lock: Held during reset, PHY access, timer, and when * updating tg3_flags and tg3_flags2. * - * tx_lock: Held during tg3_start_xmit and tg3_tx only - * when calling netif_[start|stop]_queue. - * tg3_start_xmit is protected by netif_tx_lock. + * netif_tx_lock: Held during tg3_start_xmit. tg3_tx holds + * netif_tx_lock when it needs to call + * netif_wake_queue. * * Both of these locks are to be held with BH safety. * @@ -2118,8 +2118,6 @@ struct tg3 { u32 tx_cons; u32 tx_pending; - spinlock_t tx_lock; - struct tg3_tx_buffer_desc *tx_ring; struct tx_ring_info *tx_buffers; dma_addr_t tx_desc_mapping; From dcc42f483d6808ba4d04af9da35e7e47b711f6c2 Mon Sep 17 00:00:00 2001 From: Sonny Rao Date: Wed, 2 Aug 2006 00:20:09 -0400 Subject: [PATCH 078/488] [POWERPC] fix PMU initialization on pseries lpar We should not be calling power4_enable_pmcs() in pseries_lpar_enable_pmcs(); just doing the hypercall is sufficient. Prior to 2.6.15 we did not call power4_enable_pmcs() for an lpar. power4_enable_pmcs() tries to read the hid0 register which is no longer legal for an lpar in newer Power processors. Signed-off-by: Paul Mackerras --- arch/powerpc/platforms/pseries/setup.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c index 71c634e0b87c..31867a701fcb 100644 --- a/arch/powerpc/platforms/pseries/setup.c +++ b/arch/powerpc/platforms/pseries/setup.c @@ -213,8 +213,6 @@ static void pseries_lpar_enable_pmcs(void) { unsigned long set, reset; - power4_enable_pmcs(); - set = 1UL << 63; reset = 0; plpar_hcall_norets(H_PERFMON, set, reset); From 81b73dd92b97423b8f5324a59044da478c04f4c4 Mon Sep 17 00:00:00 2001 From: Haren Myneni Date: Thu, 27 Jul 2006 14:29:00 -0700 Subject: [PATCH 079/488] [POWERPC] Fix might-sleep warning on removing cpus Noticing the following might_sleep warning (dump_stack()) during kdump testing when CONFIG_DEBUG_SPINLOCK_SLEEP is enabled. All secondary CPUs will be calling rtas_set_indicator with interrupts disabled to remove them from global interrupt queue. BUG: sleeping function called from invalid context at arch/powerpc/kernel/rtas.c:463 in_atomic():1, irqs_disabled():1 Call Trace: [C00000000FFFB970] [C000000000010234] .show_stack+0x68/0x1b0 (unreliable) [C00000000FFFBA10] [C000000000059354] .__might_sleep+0xd8/0xf4 [C00000000FFFBA90] [C00000000001D1BC] .rtas_busy_delay+0x20/0x5c [C00000000FFFBB20] [C00000000001D8A8] .rtas_set_indicator+0x6c/0xcc [C00000000FFFBBC0] [C000000000048BF4] .xics_teardown_cpu+0x118/0x134 [C00000000FFFBC40] [C00000000004539C] .pseries_kexec_cpu_down_xics+0x74/0x8c [C00000000FFFBCC0] [C00000000002DF08] .crash_ipi_callback+0x15c/0x188 [C00000000FFFBD50] [C0000000000296EC] .smp_message_recv+0x84/0xdc [C00000000FFFBDC0] [C000000000048E08] .xics_ipi_dispatch+0xf0/0x130 [C00000000FFFBE50] [C00000000009EF10] .handle_IRQ_event+0x7c/0xf8 [C00000000FFFBF00] [C0000000000A0A14] .handle_percpu_irq+0x90/0x10c [C00000000FFFBF90] [C00000000002659C] .call_handle_irq+0x1c/0x2c [C00000000058B9C0] [C00000000000CA10] .do_IRQ+0xf4/0x1a4 [C00000000058BA50] [C0000000000044EC] hardware_interrupt_entry+0xc/0x10 --- Exception: 501 at .plpar_hcall_norets+0x14/0x1c LR = .pseries_dedicated_idle_sleep+0x190/0x1d4 [C00000000058BD40] [C00000000058BDE0] 0xc00000000058bde0 (unreliable) [C00000000058BDF0] [C00000000001270C] .cpu_idle+0x10c/0x1e0 [C00000000058BE70] [C000000000009274] .rest_init+0x44/0x5c To fix this issue, rtas_set_indicator_fast() is added so that will not wait for RTAS 'busy' delay and this new function is used for kdump (in xics_teardown_cpu()) and for CPU hotplug ( xics_migrate_irqs_away() and xics_setup_cpu()). Note that the platform architecture spec says that set-indicator on the indicator we're using here is not permitted to return the busy or extended busy status codes. Signed-off-by: Haren Myneni Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/rtas.c | 21 +++++++++++++++++++++ arch/powerpc/platforms/pseries/xics.c | 6 +++--- include/asm-powerpc/rtas.h | 1 + 3 files changed, 25 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c index 4a4cb5598402..77f1e06d208d 100644 --- a/arch/powerpc/kernel/rtas.c +++ b/arch/powerpc/kernel/rtas.c @@ -569,6 +569,27 @@ int rtas_set_indicator(int indicator, int index, int new_value) } EXPORT_SYMBOL(rtas_set_indicator); +/* + * Ignoring RTAS extended delay + */ +int rtas_set_indicator_fast(int indicator, int index, int new_value) +{ + int rc; + int token = rtas_token("set-indicator"); + + if (token == RTAS_UNKNOWN_SERVICE) + return -ENOENT; + + rc = rtas_call(token, 3, 1, NULL, indicator, index, new_value); + + WARN_ON(rc == -2 || (rc >= 9900 && rc <= 9905)); + + if (rc < 0) + return rtas_error_rc(rc); + + return rc; +} + void rtas_restart(char *cmd) { if (rtas_flash_term_hook) diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c index 2d0da6f9e244..e98863025721 100644 --- a/arch/powerpc/platforms/pseries/xics.c +++ b/arch/powerpc/platforms/pseries/xics.c @@ -467,7 +467,7 @@ void xics_setup_cpu(void) * * XXX: undo of teardown on kexec needs this too, as may hotplug */ - rtas_set_indicator(GLOBAL_INTERRUPT_QUEUE, + rtas_set_indicator_fast(GLOBAL_INTERRUPT_QUEUE, (1UL << interrupt_server_size) - 1 - default_distrib_server, 1); } @@ -796,7 +796,7 @@ void xics_teardown_cpu(int secondary) * so leave the master cpu in the group. */ if (secondary) - rtas_set_indicator(GLOBAL_INTERRUPT_QUEUE, + rtas_set_indicator_fast(GLOBAL_INTERRUPT_QUEUE, (1UL << interrupt_server_size) - 1 - default_distrib_server, 0); } @@ -813,7 +813,7 @@ void xics_migrate_irqs_away(void) xics_set_cpu_priority(cpu, 0); /* remove ourselves from the global interrupt queue */ - status = rtas_set_indicator(GLOBAL_INTERRUPT_QUEUE, + status = rtas_set_indicator_fast(GLOBAL_INTERRUPT_QUEUE, (1UL << interrupt_server_size) - 1 - default_distrib_server, 0); WARN_ON(status < 0); diff --git a/include/asm-powerpc/rtas.h b/include/asm-powerpc/rtas.h index a33c6acffa61..82a27e9a041f 100644 --- a/include/asm-powerpc/rtas.h +++ b/include/asm-powerpc/rtas.h @@ -170,6 +170,7 @@ extern int rtas_get_sensor(int sensor, int index, int *state); extern int rtas_get_power_level(int powerdomain, int *level); extern int rtas_set_power_level(int powerdomain, int level, int *setlevel); extern int rtas_set_indicator(int indicator, int index, int new_value); +extern int rtas_set_indicator_fast(int indicator, int index, int new_value); extern void rtas_progress(char *s, unsigned short hex); extern void rtas_initialize(void); From 487206f26364a878f5f8cec9f92796d403f1d7c9 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Tue, 8 Aug 2006 09:10:01 -0300 Subject: [PATCH 080/488] V4L/DVB (4340): Videodev.h should be included also when V4L1_COMPAT is selected. Signed-off-by: Mauro Carvalho Chehab --- include/media/v4l2-dev.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h index f8665326ed9f..600d61d7d2ab 100644 --- a/include/media/v4l2-dev.h +++ b/include/media/v4l2-dev.h @@ -16,7 +16,7 @@ #include #include #include /* need __user */ -#ifdef CONFIG_VIDEO_V4L1 +#ifdef CONFIG_VIDEO_V4L1_COMPAT #include #else #include From 5bdd6cc3300be534f2a2cf826e3fb926b5695698 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Tue, 25 Jul 2006 16:17:54 -0300 Subject: [PATCH 081/488] V4L/DVB (4371a): Fix V4L1 dependencies on compat_ioctl32 Compat32 should be able to handle V4L1 ioctls if the old API support were selected. Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/compat_ioctl32.c | 32 ++++++++++++++++++++++++---- 1 file changed, 28 insertions(+), 4 deletions(-) diff --git a/drivers/media/video/compat_ioctl32.c b/drivers/media/video/compat_ioctl32.c index 9dddff42ec13..b69ee1194815 100644 --- a/drivers/media/video/compat_ioctl32.c +++ b/drivers/media/video/compat_ioctl32.c @@ -21,7 +21,7 @@ #ifdef CONFIG_COMPAT - +#ifdef CONFIG_VIDEO_V4L1_COMPAT struct video_tuner32 { compat_int_t tuner; char name[32]; @@ -107,6 +107,7 @@ struct video_window32 { compat_caddr_t clips; compat_int_t clipcount; }; +#endif static int native_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { @@ -124,6 +125,7 @@ static int native_ioctl(struct file *file, unsigned int cmd, unsigned long arg) } +#ifdef CONFIG_VIDEO_V4L1_COMPAT /* You get back everything except the clips... */ static int put_video_window32(struct video_window *kp, struct video_window32 __user *up) { @@ -138,6 +140,7 @@ static int put_video_window32(struct video_window *kp, struct video_window32 __u return -EFAULT; return 0; } +#endif struct v4l2_clip32 { @@ -490,6 +493,7 @@ static inline int put_v4l2_input(struct v4l2_input *kp, struct v4l2_input __user return 0; } +#ifdef CONFIG_VIDEO_V4L1_COMPAT struct video_code32 { char loadwhat[16]; /* name or tag of file being passed */ @@ -517,6 +521,8 @@ static inline int microcode32(struct video_code *kp, struct video_code32 __user #define VIDIOCSFREQ32 _IOW('v',15, u32) #define VIDIOCSMICROCODE32 _IOW('v',27, struct video_code32) +#endif + /* VIDIOC_ENUMINPUT32 is VIDIOC_ENUMINPUT minus 4 bytes of padding alignement */ #define VIDIOC_ENUMINPUT32 VIDIOC_ENUMINPUT - _IOC(0, 0, 0, 4) #define VIDIOC_G_FMT32 _IOWR ('V', 4, struct v4l2_format32) @@ -537,6 +543,7 @@ static inline int microcode32(struct video_code *kp, struct video_code32 __user #define VIDIOC_S_INPUT32 _IOWR ('V', 39, compat_int_t) #define VIDIOC_TRY_FMT32 _IOWR ('V', 64, struct v4l2_format32) +#ifdef CONFIG_VIDEO_V4L1_COMPAT enum { MaxClips = (~0U-sizeof(struct video_window))/sizeof(struct video_clip) }; @@ -601,14 +608,17 @@ static int do_set_window(struct file *file, unsigned int cmd, unsigned long arg) return native_ioctl(file, VIDIOCSWIN, (unsigned long)vw); } +#endif static int do_video_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { union { +#ifdef CONFIG_VIDEO_V4L1_COMPAT struct video_tuner vt; struct video_buffer vb; struct video_window vw; struct video_code vc; +#endif struct v4l2_format v2f; struct v4l2_buffer v2b; struct v4l2_framebuffer v2fb; @@ -624,6 +634,7 @@ static int do_video_ioctl(struct file *file, unsigned int cmd, unsigned long arg /* First, convert the command. */ switch(cmd) { +#ifdef CONFIG_VIDEO_V4L1_COMPAT case VIDIOCGTUNER32: cmd = VIDIOCGTUNER; break; case VIDIOCSTUNER32: cmd = VIDIOCSTUNER; break; case VIDIOCGWIN32: cmd = VIDIOCGWIN; break; @@ -631,6 +642,8 @@ static int do_video_ioctl(struct file *file, unsigned int cmd, unsigned long arg case VIDIOCSFBUF32: cmd = VIDIOCSFBUF; break; case VIDIOCGFREQ32: cmd = VIDIOCGFREQ; break; case VIDIOCSFREQ32: cmd = VIDIOCSFREQ; break; + case VIDIOCSMICROCODE32: cmd = VIDIOCSMICROCODE; break; +#endif case VIDIOC_G_FMT32: cmd = VIDIOC_G_FMT; break; case VIDIOC_S_FMT32: cmd = VIDIOC_S_FMT; break; case VIDIOC_QUERYBUF32: cmd = VIDIOC_QUERYBUF; break; @@ -647,10 +660,10 @@ static int do_video_ioctl(struct file *file, unsigned int cmd, unsigned long arg case VIDIOC_G_INPUT32: cmd = VIDIOC_G_INPUT; break; case VIDIOC_S_INPUT32: cmd = VIDIOC_S_INPUT; break; case VIDIOC_TRY_FMT32: cmd = VIDIOC_TRY_FMT; break; - case VIDIOCSMICROCODE32: cmd = VIDIOCSMICROCODE; break; }; switch(cmd) { +#ifdef CONFIG_VIDEO_V4L1_COMPAT case VIDIOCSTUNER: case VIDIOCGTUNER: err = get_video_tuner32(&karg.vt, up); @@ -664,6 +677,7 @@ static int do_video_ioctl(struct file *file, unsigned int cmd, unsigned long arg break; case VIDIOCSFREQ: +#endif case VIDIOC_S_INPUT: case VIDIOC_OVERLAY: case VIDIOC_STREAMON: @@ -717,18 +731,21 @@ static int do_video_ioctl(struct file *file, unsigned int cmd, unsigned long arg compatible_arg = 0; break; +#ifdef CONFIG_VIDEO_V4L1_COMPAT case VIDIOCGWIN: case VIDIOCGFBUF: case VIDIOCGFREQ: +#endif case VIDIOC_G_FBUF: case VIDIOC_G_INPUT: compatible_arg = 0; +#ifdef CONFIG_VIDEO_V4L1_COMPAT case VIDIOCSMICROCODE: err = microcode32(&karg.vc, up); compatible_arg = 0; break; +#endif }; - if(err) goto out; @@ -743,6 +760,7 @@ static int do_video_ioctl(struct file *file, unsigned int cmd, unsigned long arg } if(err == 0) { switch(cmd) { +#ifdef CONFIG_VIDEO_V4L1_COMPAT case VIDIOCGTUNER: err = put_video_tuner32(&karg.vt, up); break; @@ -754,7 +772,7 @@ static int do_video_ioctl(struct file *file, unsigned int cmd, unsigned long arg case VIDIOCGFBUF: err = put_video_buffer32(&karg.vb, up); break; - +#endif case VIDIOC_G_FBUF: err = put_v4l2_framebuffer32(&karg.v2fb, up); break; @@ -792,7 +810,9 @@ static int do_video_ioctl(struct file *file, unsigned int cmd, unsigned long arg err = put_v4l2_input32(&karg.v2i, up); break; +#ifdef CONFIG_VIDEO_V4L1_COMPAT case VIDIOCGFREQ: +#endif case VIDIOC_G_INPUT: err = put_user(((u32)karg.vx), (u32 __user *)up); break; @@ -810,6 +830,7 @@ long v4l_compat_ioctl32(struct file *file, unsigned int cmd, unsigned long arg) return ret; switch (cmd) { +#ifdef CONFIG_VIDEO_V4L1_COMPAT case VIDIOCSWIN32: ret = do_set_window(file, cmd, arg); break; @@ -820,6 +841,7 @@ long v4l_compat_ioctl32(struct file *file, unsigned int cmd, unsigned long arg) case VIDIOCSFBUF32: case VIDIOCGFREQ32: case VIDIOCSFREQ32: +#endif case VIDIOC_QUERYCAP: case VIDIOC_ENUM_FMT: case VIDIOC_G_FMT32: @@ -851,6 +873,7 @@ long v4l_compat_ioctl32(struct file *file, unsigned int cmd, unsigned long arg) ret = do_video_ioctl(file, cmd, arg); break; +#ifdef CONFIG_VIDEO_V4L1_COMPAT /* Little v, the video4linux ioctls (conflict?) */ case VIDIOCGCAP: case VIDIOCGCHAN: @@ -879,6 +902,7 @@ long v4l_compat_ioctl32(struct file *file, unsigned int cmd, unsigned long arg) case _IOR('v' , BASE_VIDIOCPRIVATE+7, int): ret = native_ioctl(file, cmd, (unsigned long)compat_ptr(arg)); break; +#endif default: v4l_print_ioctl("compat_ioctl32", cmd); } From 6054b68e84478e66e626bde33f93b5f0bf48c180 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Tue, 8 Aug 2006 09:10:06 -0300 Subject: [PATCH 082/488] V4L/DVB (4371b): Fix V4L1 dependencies at drivers under sound/oss and sound/pci TVMixer and FM801 Tea5757 are still using V4L1 API. Signed-off-by: Mauro Carvalho Chehab --- sound/oss/Kconfig | 6 ++-- sound/pci/Kconfig | 70 ++++++++++++++++++++++++----------------------- 2 files changed, 39 insertions(+), 37 deletions(-) diff --git a/sound/oss/Kconfig b/sound/oss/Kconfig index f4980ca5c05c..1b7c3dfc2b41 100644 --- a/sound/oss/Kconfig +++ b/sound/oss/Kconfig @@ -31,7 +31,7 @@ config SOUND_EMU10K1 For more information on this driver and the degree of support for the different card models please check: - + It is now possible to load dsp microcode patches into the EMU10K1 chip. These patches are used to implement real time sound @@ -140,7 +140,7 @@ config SOUND_TRIDENT system support" and "Sysctl support", and after the /proc file system has been mounted, executing the command - command what is enabled + command what is enabled echo 0>/proc/ALi5451 pcm out is also set to S/PDIF out. (Default). @@ -838,7 +838,7 @@ config SOUND_WAVEARTIST config SOUND_TVMIXER tristate "TV card (bt848) mixer support" - depends on SOUND_PRIME && I2C + depends on SOUND_PRIME && I2C && VIDEO_V4L1 help Support for audio mixer facilities on the BT848 TV frame-grabber card. diff --git a/sound/pci/Kconfig b/sound/pci/Kconfig index d7ad32f514da..e49c0fe21b0d 100644 --- a/sound/pci/Kconfig +++ b/sound/pci/Kconfig @@ -16,16 +16,16 @@ config SND_AD1889 will be called snd-ad1889. config SND_ALS300 - tristate "Avance Logic ALS300/ALS300+" - depends on SND - select SND_PCM - select SND_AC97_CODEC - select SND_OPL3_LIB - help - Say 'Y' or 'M' to include support for Avance Logic ALS300/ALS300+ + tristate "Avance Logic ALS300/ALS300+" + depends on SND + select SND_PCM + select SND_AC97_CODEC + select SND_OPL3_LIB + help + Say 'Y' or 'M' to include support for Avance Logic ALS300/ALS300+ - To compile this driver as a module, choose M here: the module - will be called snd-als300 + To compile this driver as a module, choose M here: the module + will be called snd-als300 config SND_ALS4000 tristate "Avance Logic ALS4000" @@ -78,49 +78,49 @@ config SND_ATIIXP_MODEM will be called snd-atiixp-modem. config SND_AU8810 - tristate "Aureal Advantage" - depends on SND + tristate "Aureal Advantage" + depends on SND select SND_MPU401_UART select SND_AC97_CODEC - help + help Say Y here to include support for Aureal Advantage soundcards. Supported features: Hardware Mixer, SRC, EQ and SPDIF output. - 3D support code is in place, but not yet useable. For more info, - email the ALSA developer list, or . + 3D support code is in place, but not yet useable. For more info, + email the ALSA developer list, or . To compile this driver as a module, choose M here: the module will be called snd-au8810. - + config SND_AU8820 - tristate "Aureal Vortex" - depends on SND + tristate "Aureal Vortex" + depends on SND select SND_MPU401_UART select SND_AC97_CODEC - help + help Say Y here to include support for Aureal Vortex soundcards. - Supported features: Hardware Mixer and SRC. For more info, email - the ALSA developer list, or . + Supported features: Hardware Mixer and SRC. For more info, email + the ALSA developer list, or . To compile this driver as a module, choose M here: the module will be called snd-au8820. - + config SND_AU8830 - tristate "Aureal Vortex 2" - depends on SND + tristate "Aureal Vortex 2" + depends on SND select SND_MPU401_UART select SND_AC97_CODEC - help + help Say Y here to include support for Aureal Vortex 2 soundcards. - Supported features: Hardware Mixer, SRC, EQ and SPDIF output. - 3D support code is in place, but not yet useable. For more info, - email the ALSA developer list, or . + Supported features: Hardware Mixer, SRC, EQ and SPDIF output. + 3D support code is in place, but not yet useable. For more info, + email the ALSA developer list, or . To compile this driver as a module, choose M here: the module will be called snd-au8830. - + config SND_AZT3328 tristate "Aztech AZF3328 / PCI168 (EXPERIMENTAL)" depends on SND && EXPERIMENTAL @@ -135,10 +135,10 @@ config SND_AZT3328 will be called snd-azt3328. config SND_BT87X - tristate "Bt87x Audio Capture" - depends on SND + tristate "Bt87x Audio Capture" + depends on SND select SND_PCM - help + help If you want to record audio from TV cards based on Brooktree Bt878/Bt879 chips, say Y here and read . @@ -209,7 +209,7 @@ config SND_CS46XX config SND_CS46XX_NEW_DSP bool "Cirrus Logic (Sound Fusion) New DSP support" depends on SND_CS46XX - default y + default y help Say Y here to use a new DSP image for SPDIF and dual codecs. @@ -225,7 +225,7 @@ config SND_CS5535AUDIO referred to as NS CS5535 IO or AMD CS5535 IO companion in various literature. This driver also supports the CS5536 audio device. However, for both chips, on certain boards, you may - need to use ac97_quirk=hp_only if your board has physically + need to use ac97_quirk=hp_only if your board has physically mapped headphone out to master output. If that works for you, send lspci -vvv output to the mailing list so that your board can be identified in the quirks list. @@ -468,11 +468,13 @@ config SND_FM801_TEA575X_BOOL FM801 chip with a TEA5757 tuner connected to GPIO1-3 pins (Media Forte SF256-PCS-02) into the snd-fm801 driver. + This will enable support for the old V4L1 API. + config SND_FM801_TEA575X tristate depends on SND_FM801_TEA575X_BOOL default SND_FM801 - select VIDEO_DEV + select VIDEO_V4L1 config SND_HDA_INTEL tristate "Intel HD Audio" From 3cdc0f263b9fe99f7dfcef49df7a148b458e9d11 Mon Sep 17 00:00:00 2001 From: Luc Van Oostenryck Date: Tue, 8 Aug 2006 09:10:10 -0300 Subject: [PATCH 083/488] V4L/DVB (4395): Restore compat_ioctl in pwc driver The compat_ioctl support of the pwc driver was dropped during the last update of the driver. I suppose it was by mistake. If yes here is the patch to restore the support. Signed-off-by: Luc Van Oostenryck Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/pwc/pwc-if.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/media/video/pwc/pwc-if.c b/drivers/media/video/pwc/pwc-if.c index 47d0d83a0264..d4703944df9c 100644 --- a/drivers/media/video/pwc/pwc-if.c +++ b/drivers/media/video/pwc/pwc-if.c @@ -160,6 +160,7 @@ static struct file_operations pwc_fops = { .poll = pwc_video_poll, .mmap = pwc_video_mmap, .ioctl = pwc_video_ioctl, + .compat_ioctl = v4l_compat_ioctl32, .llseek = no_llseek, }; static struct video_device pwc_template = { From 0dfa9abd6bd153364da8cb131db0d0404ab15ad1 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Tue, 8 Aug 2006 09:10:10 -0300 Subject: [PATCH 084/488] V4L/DVB (4399): Fix a typo that caused some compat stuff to not work Config option typo: -#ifdef CONFIG_V4L1_COMPAT +#ifdef CONFIG_VIDEO_V4L1_COMPAT Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/cx88/cx88-video.c | 4 ++-- drivers/media/video/saa7134/saa7134-video.c | 2 +- drivers/media/video/v4l2-common.c | 6 +++--- drivers/media/video/videodev.c | 2 +- drivers/media/video/vivi.c | 4 ++-- 5 files changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/media/video/cx88/cx88-video.c b/drivers/media/video/cx88/cx88-video.c index 547cdbdb644d..94c92bacc342 100644 --- a/drivers/media/video/cx88/cx88-video.c +++ b/drivers/media/video/cx88/cx88-video.c @@ -1225,7 +1225,7 @@ static int video_do_ioctl(struct inode *inode, struct file *file, struct v4l2_format *f = arg; return cx8800_try_fmt(dev,fh,f); } -#ifdef CONFIG_V4L1_COMPAT +#ifdef CONFIG_VIDEO_V4L1_COMPAT /* --- streaming capture ------------------------------------- */ case VIDIOCGMBUF: { @@ -1584,7 +1584,7 @@ static int radio_do_ioctl(struct inode *inode, struct file *file, *id = 0; return 0; } -#ifdef CONFIG_V4L1_COMPAT +#ifdef CONFIG_VIDEO_V4L1_COMPAT case VIDIOCSTUNER: { struct video_tuner *v = arg; diff --git a/drivers/media/video/saa7134/saa7134-video.c b/drivers/media/video/saa7134/saa7134-video.c index 8656f2400e18..2c171af9a9f2 100644 --- a/drivers/media/video/saa7134/saa7134-video.c +++ b/drivers/media/video/saa7134/saa7134-video.c @@ -2087,7 +2087,7 @@ static int video_do_ioctl(struct inode *inode, struct file *file, struct v4l2_format *f = arg; return saa7134_try_fmt(dev,fh,f); } -#ifdef CONFIG_V4L1_COMPAT +#ifdef CONFIG_VIDEO_V4L1_COMPAT case VIDIOCGMBUF: { struct video_mbuf *mbuf = arg; diff --git a/drivers/media/video/v4l2-common.c b/drivers/media/video/v4l2-common.c index 2ecbeffb559e..8d972ffdaf98 100644 --- a/drivers/media/video/v4l2-common.c +++ b/drivers/media/video/v4l2-common.c @@ -202,7 +202,7 @@ static char *v4l2_memory_names[] = { /* ------------------------------------------------------------------ */ /* debug help functions */ -#ifdef CONFIG_V4L1_COMPAT +#ifdef CONFIG_VIDEO_V4L1_COMPAT static const char *v4l1_ioctls[] = { [_IOC_NR(VIDIOCGCAP)] = "VIDIOCGCAP", [_IOC_NR(VIDIOCGCHAN)] = "VIDIOCGCHAN", @@ -301,7 +301,7 @@ static const char *v4l2_ioctls[] = { #define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls) static const char *v4l2_int_ioctls[] = { -#ifdef CONFIG_V4L1_COMPAT +#ifdef CONFIG_VIDEO_V4L1_COMPAT [_IOC_NR(DECODER_GET_CAPABILITIES)] = "DECODER_GET_CAPABILITIES", [_IOC_NR(DECODER_GET_STATUS)] = "DECODER_GET_STATUS", [_IOC_NR(DECODER_SET_NORM)] = "DECODER_SET_NORM", @@ -367,7 +367,7 @@ void v4l_printk_ioctl(unsigned int cmd) (_IOC_NR(cmd) < V4L2_INT_IOCTLS) ? v4l2_int_ioctls[_IOC_NR(cmd)] : "UNKNOWN", dir, cmd); break; -#ifdef CONFIG_V4L1_COMPAT +#ifdef CONFIG_VIDEO_V4L1_COMPAT case 'v': printk("v4l1 ioctl %s, dir=%s (0x%08x)\n", (_IOC_NR(cmd) < V4L1_IOCTLS) ? diff --git a/drivers/media/video/videodev.c b/drivers/media/video/videodev.c index 0fc90cd393f6..88bf2af2a0e7 100644 --- a/drivers/media/video/videodev.c +++ b/drivers/media/video/videodev.c @@ -760,7 +760,7 @@ static int __video_do_ioctl(struct inode *inode, struct file *file, ret=vfd->vidioc_overlay(file, fh, *i); break; } -#ifdef CONFIG_V4L1_COMPAT +#ifdef CONFIG_VIDEO_V4L1_COMPAT /* --- streaming capture ------------------------------------- */ case VIDIOCGMBUF: { diff --git a/drivers/media/video/vivi.c b/drivers/media/video/vivi.c index 38bd0c1018c2..841884af0cc0 100644 --- a/drivers/media/video/vivi.c +++ b/drivers/media/video/vivi.c @@ -986,7 +986,7 @@ static int vidioc_dqbuf (struct file *file, void *priv, struct v4l2_buffer *p) file->f_flags & O_NONBLOCK)); } -#ifdef CONFIG_V4L1_COMPAT +#ifdef CONFIG_VIDEO_V4L1_COMPAT static int vidiocgmbuf (struct file *file, void *priv, struct video_mbuf *mbuf) { struct vivi_fh *fh=priv; @@ -1328,7 +1328,7 @@ static struct video_device vivi = { .vidioc_s_ctrl = vidioc_s_ctrl, .vidioc_streamon = vidioc_streamon, .vidioc_streamoff = vidioc_streamoff, -#ifdef CONFIG_V4L1_COMPAT +#ifdef CONFIG_VIDEO_V4L1_COMPAT .vidiocgmbuf = vidiocgmbuf, #endif .tvnorms = tvnorms, From 7fb6529762f8185f792ad74adcf211713f973c80 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Tue, 8 Aug 2006 15:47:31 -0300 Subject: [PATCH 085/488] V4L/DVB (4407): Driver dsbr100 is a radio device, not a video one! Signed-off-by: Mauro Carvalho Chehab --- drivers/media/radio/Kconfig | 12 +++++++++++- drivers/media/radio/Makefile | 1 + drivers/media/{video => radio}/dsbr100.c | 0 drivers/media/video/Kconfig | 12 ------------ drivers/media/video/Makefile | 1 - 5 files changed, 12 insertions(+), 14 deletions(-) rename drivers/media/{video => radio}/dsbr100.c (100%) diff --git a/drivers/media/radio/Kconfig b/drivers/media/radio/Kconfig index de3128a31de8..220076b1b956 100644 --- a/drivers/media/radio/Kconfig +++ b/drivers/media/radio/Kconfig @@ -350,5 +350,15 @@ config RADIO_ZOLTRIX_PORT help Enter the I/O port of your Zoltrix radio card. -endmenu +config USB_DSBR + tristate "D-Link USB FM radio support (EXPERIMENTAL)" + depends on USB && VIDEO_V4L1 && EXPERIMENTAL + ---help--- + Say Y here if you want to connect this type of radio to your + computer's USB port. Note that the audio is not digital, and + you must connect the line out connector to a sound card or a + set of speakers. + To compile this driver as a module, choose M here: the + module will be called dsbr100. +endmenu diff --git a/drivers/media/radio/Makefile b/drivers/media/radio/Makefile index e95b6805e002..cf55a18e3ddf 100644 --- a/drivers/media/radio/Makefile +++ b/drivers/media/radio/Makefile @@ -20,5 +20,6 @@ obj-$(CONFIG_RADIO_GEMTEK) += radio-gemtek.o obj-$(CONFIG_RADIO_GEMTEK_PCI) += radio-gemtek-pci.o obj-$(CONFIG_RADIO_TRUST) += radio-trust.o obj-$(CONFIG_RADIO_MAESTRO) += radio-maestro.o +obj-$(CONFIG_USB_DSBR) += dsbr100.o EXTRA_CFLAGS += -Isound diff --git a/drivers/media/video/dsbr100.c b/drivers/media/radio/dsbr100.c similarity index 100% rename from drivers/media/video/dsbr100.c rename to drivers/media/radio/dsbr100.c diff --git a/drivers/media/video/Kconfig b/drivers/media/video/Kconfig index fe56862d51e4..732bf1e7c326 100644 --- a/drivers/media/video/Kconfig +++ b/drivers/media/video/Kconfig @@ -449,18 +449,6 @@ source "drivers/media/video/pvrusb2/Kconfig" source "drivers/media/video/em28xx/Kconfig" -config USB_DSBR - tristate "D-Link USB FM radio support (EXPERIMENTAL)" - depends on USB && VIDEO_V4L1 && EXPERIMENTAL - ---help--- - Say Y here if you want to connect this type of radio to your - computer's USB port. Note that the audio is not digital, and - you must connect the line out connector to a sound card or a - set of speakers. - - To compile this driver as a module, choose M here: the - module will be called dsbr100. - source "drivers/media/video/usbvideo/Kconfig" source "drivers/media/video/et61x251/Kconfig" diff --git a/drivers/media/video/Makefile b/drivers/media/video/Makefile index 353d61cfac1b..010833d8116e 100644 --- a/drivers/media/video/Makefile +++ b/drivers/media/video/Makefile @@ -77,7 +77,6 @@ obj-$(CONFIG_VIDEO_UPD64083) += upd64083.o obj-$(CONFIG_VIDEO_CX2341X) += cx2341x.o obj-$(CONFIG_USB_DABUSB) += dabusb.o -obj-$(CONFIG_USB_DSBR) += dsbr100.o obj-$(CONFIG_USB_OV511) += ov511.o obj-$(CONFIG_USB_SE401) += se401.o obj-$(CONFIG_USB_STV680) += stv680.o From b02dc515914bc37f5e406cc6f622fc06991eb779 Mon Sep 17 00:00:00 2001 From: Trent Piepho Date: Tue, 8 Aug 2006 09:10:12 -0300 Subject: [PATCH 086/488] V4L/DVB (4411): Fix minor errors in build files In pwc Kconfig, change 'depends' to 'depends on' In dvb-core Makefile, change '=' to ':=' Signed-off-by: Trent Piepho Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb/dvb-core/Makefile | 6 +++--- drivers/media/video/pwc/Kconfig | 2 +- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/media/dvb/dvb-core/Makefile b/drivers/media/dvb/dvb-core/Makefile index 11054657fdb5..0b5182835cc8 100644 --- a/drivers/media/dvb/dvb-core/Makefile +++ b/drivers/media/dvb/dvb-core/Makefile @@ -2,8 +2,8 @@ # Makefile for the kernel DVB device drivers. # -dvb-core-objs = dvbdev.o dmxdev.o dvb_demux.o dvb_filter.o \ - dvb_ca_en50221.o dvb_frontend.o \ - dvb_net.o dvb_ringbuffer.o dvb_math.o +dvb-core-objs := dvbdev.o dmxdev.o dvb_demux.o dvb_filter.o \ + dvb_ca_en50221.o dvb_frontend.o \ + dvb_net.o dvb_ringbuffer.o dvb_math.o obj-$(CONFIG_DVB_CORE) += dvb-core.o diff --git a/drivers/media/video/pwc/Kconfig b/drivers/media/video/pwc/Kconfig index 697145e0bf15..8fdf7101d3bf 100644 --- a/drivers/media/video/pwc/Kconfig +++ b/drivers/media/video/pwc/Kconfig @@ -30,7 +30,7 @@ config USB_PWC config USB_PWC_DEBUG bool "USB Philips Cameras verbose debug" - depends USB_PWC + depends on USB_PWC help Say Y here in order to have the pwc driver generate verbose debugging messages. From 17531c168c7b8138b5379a85de788798fc6696e1 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Tue, 8 Aug 2006 09:10:12 -0300 Subject: [PATCH 087/488] V4L/DVB (4416): Cx25840_read4 has wrong endianness. cx25840_read4 assembled the bytes in the wrong order. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/cx25840/cx25840-core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/media/video/cx25840/cx25840-core.c b/drivers/media/video/cx25840/cx25840-core.c index 5c2036b40ea1..7bb7589a07c3 100644 --- a/drivers/media/video/cx25840/cx25840-core.c +++ b/drivers/media/video/cx25840/cx25840-core.c @@ -104,8 +104,8 @@ u32 cx25840_read4(struct i2c_client * client, u16 addr) if (i2c_master_recv(client, buffer, 4) < 4) return 0; - return (buffer[0] << 24) | (buffer[1] << 16) | - (buffer[2] << 8) | buffer[3]; + return (buffer[3] << 24) | (buffer[2] << 16) | + (buffer[1] << 8) | buffer[0]; } int cx25840_and_or(struct i2c_client *client, u16 addr, unsigned and_mask, From e335fada5afef0658038b6bec432d37f332da9fc Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Tue, 8 Aug 2006 09:10:15 -0300 Subject: [PATCH 088/488] V4L/DVB (4418): Fix broken msp3400 module option 'standard' Due to a wrong statement order the 'standard' module option didn't work for 'G' model chips. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/msp3400-kthreads.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/media/video/msp3400-kthreads.c b/drivers/media/video/msp3400-kthreads.c index f2fd9195b3ac..ed02ff811388 100644 --- a/drivers/media/video/msp3400-kthreads.c +++ b/drivers/media/video/msp3400-kthreads.c @@ -961,10 +961,10 @@ int msp34xxg_thread(void *data) /* setup the chip*/ msp34xxg_reset(client); state->std = state->radio ? 0x40 : msp_standard; - if (state->std != 1) - goto unmute; /* start autodetect */ msp_write_dem(client, 0x20, state->std); + if (state->std != 1) + goto unmute; /* watch autodetect */ v4l_dbg(1, msp_debug, client, "started autodetect, waiting for result\n"); From 43c560fa59ef2688d891f6431e972b7763b73a00 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Tue, 8 Aug 2006 09:10:15 -0300 Subject: [PATCH 089/488] V4L/DVB (4419): Turn on the Low Noise Amplifier of the Samsung tuners. Without the LNA these tuners perform very poorly (read 'unwatchable') when the signal is weak. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/tuner-types.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/drivers/media/video/tuner-types.c b/drivers/media/video/tuner-types.c index a167e17c6dcd..d7eadc2c298d 100644 --- a/drivers/media/video/tuner-types.c +++ b/drivers/media/video/tuner-types.c @@ -1027,10 +1027,11 @@ static struct tuner_params tuner_tnf_5335mf_params[] = { /* 70-79 */ /* ------------ TUNER_SAMSUNG_TCPN_2121P30A - Samsung NTSC ------------ */ +/* '+ 4' turns on the Low Noise Amplifier */ static struct tuner_range tuner_samsung_tcpn_2121p30a_ntsc_ranges[] = { - { 16 * 130.00 /*MHz*/, 0xce, 0x01, }, - { 16 * 364.50 /*MHz*/, 0xce, 0x02, }, - { 16 * 999.99 , 0xce, 0x08, }, + { 16 * 130.00 /*MHz*/, 0xce, 0x01 + 4, }, + { 16 * 364.50 /*MHz*/, 0xce, 0x02 + 4, }, + { 16 * 999.99 , 0xce, 0x08 + 4, }, }; static struct tuner_params tuner_samsung_tcpn_2121p30a_params[] = { @@ -1060,10 +1061,11 @@ static struct tuner_params tuner_thomson_fe6600_params[] = { /* ------------ TUNER_SAMSUNG_TCPG_6121P30A - Samsung PAL ------------ */ +/* '+ 4' turns on the Low Noise Amplifier */ static struct tuner_range tuner_samsung_tcpg_6121p30a_pal_ranges[] = { - { 16 * 146.25 /*MHz*/, 0xce, 0x01, }, - { 16 * 428.50 /*MHz*/, 0xce, 0x02, }, - { 16 * 999.99 , 0xce, 0x08, }, + { 16 * 146.25 /*MHz*/, 0xce, 0x01 + 4, }, + { 16 * 428.50 /*MHz*/, 0xce, 0x02 + 4, }, + { 16 * 999.99 , 0xce, 0x08 + 4, }, }; static struct tuner_params tuner_samsung_tcpg_6121p30a_params[] = { From 8a016dcc8383bedc731bca9fdedae77ff52a6ad7 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Tue, 8 Aug 2006 09:10:16 -0300 Subject: [PATCH 090/488] V4L/DVB (4427): Fix V4L1 Compat for VIDIOCGPICT ioctl Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/v4l1-compat.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/media/video/v4l1-compat.c b/drivers/media/video/v4l1-compat.c index d83a2c84d233..d7c3fcbc80f7 100644 --- a/drivers/media/video/v4l1-compat.c +++ b/drivers/media/video/v4l1-compat.c @@ -599,6 +599,10 @@ v4l_compat_translate_ioctl(struct inode *inode, dprintk("VIDIOCGPICT / VIDIOC_G_FMT: %d\n",err); break; } + + pict->depth = ((fmt2->fmt.pix.bytesperline<<3) + + (fmt2->fmt.pix.width-1) ) + /fmt2->fmt.pix.width; pict->palette = pixelformat_to_palette( fmt2->fmt.pix.pixelformat); break; From eafa98177a388700d613c187c7716e11869b7171 Mon Sep 17 00:00:00 2001 From: Diego Calleja Date: Tue, 8 Aug 2006 09:10:17 -0300 Subject: [PATCH 091/488] V4L/DVB (4430): Quickcam_messenger compilation fix In bugzilla #6943, Maxim Britov reported: "I can enable Logitech quickcam support in .config, but it want be compile. I have to add into drivers/media/video/Makefile: obj-$(CONFIG_USB_QUICKCAM_MESSENGER) += usbvideo/" He's right, just enable that driver as module while disabling every other driver that gets into that directory, nothing will get compiled. This patch fixes the Makefile. Signed-off-by: Diego Calleja Acked-by: Michael Krufky Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/Makefile | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/media/video/Makefile b/drivers/media/video/Makefile index 010833d8116e..e82e511f2a72 100644 --- a/drivers/media/video/Makefile +++ b/drivers/media/video/Makefile @@ -90,6 +90,7 @@ obj-$(CONFIG_USB_ZC0301) += zc0301/ obj-$(CONFIG_USB_IBMCAM) += usbvideo/ obj-$(CONFIG_USB_KONICAWC) += usbvideo/ obj-$(CONFIG_USB_VICAM) += usbvideo/ +obj-$(CONFIG_USB_QUICKCAM_MESSENGER) += usbvideo/ obj-$(CONFIG_VIDEO_VIVI) += vivi.o From 0851fb48486c044476b019029245cb9b348fca33 Mon Sep 17 00:00:00 2001 From: Yeasah Pell Date: Tue, 8 Aug 2006 09:10:18 -0300 Subject: [PATCH 092/488] V4L/DVB (4431): Add several error checks to dst Signed-off-by: Yeasah Pell Signed-off-by: Manu Abraham Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb/bt8xx/dst.c | 58 ++++++++++++++++------------------- 1 file changed, 27 insertions(+), 31 deletions(-) diff --git a/drivers/media/dvb/bt8xx/dst.c b/drivers/media/dvb/bt8xx/dst.c index d687a14ec0a7..06ac899a9a26 100644 --- a/drivers/media/dvb/bt8xx/dst.c +++ b/drivers/media/dvb/bt8xx/dst.c @@ -393,7 +393,7 @@ static int dst_set_bandwidth(struct dst_state *state, fe_bandwidth_t bandwidth) state->bandwidth = bandwidth; if (state->dst_type != DST_TYPE_IS_TERR) - return 0; + return -EOPNOTSUPP; switch (bandwidth) { case BANDWIDTH_6_MHZ: @@ -462,7 +462,7 @@ static int dst_set_symbolrate(struct dst_state *state, u32 srate) state->symbol_rate = srate; if (state->dst_type == DST_TYPE_IS_TERR) { - return 0; + return -EOPNOTSUPP; } dprintk(verbose, DST_INFO, 1, "set symrate %u", srate); srate /= 1000; @@ -504,7 +504,7 @@ static int dst_set_symbolrate(struct dst_state *state, u32 srate) static int dst_set_modulation(struct dst_state *state, fe_modulation_t modulation) { if (state->dst_type != DST_TYPE_IS_CABLE) - return 0; + return -EOPNOTSUPP; state->modulation = modulation; switch (modulation) { @@ -1234,7 +1234,7 @@ int dst_command(struct dst_state *state, u8 *data, u8 len) goto error; } if (write_dst(state, data, len)) { - dprintk(verbose, DST_INFO, 1, "Tring to recover.. "); + dprintk(verbose, DST_INFO, 1, "Trying to recover.. "); if ((dst_error_recovery(state)) < 0) { dprintk(verbose, DST_ERROR, 1, "Recovery Failed."); goto error; @@ -1328,15 +1328,13 @@ static int dst_tone_power_cmd(struct dst_state *state) { u8 paket[8] = { 0x00, 0x09, 0xff, 0xff, 0x01, 0x00, 0x00, 0x00 }; - if (state->dst_type == DST_TYPE_IS_TERR) - return 0; + if (state->dst_type != DST_TYPE_IS_SAT) + return -EOPNOTSUPP; paket[4] = state->tx_tuna[4]; paket[2] = state->tx_tuna[2]; paket[3] = state->tx_tuna[3]; paket[7] = dst_check_sum (paket, 7); - dst_command(state, paket, 8); - - return 0; + return dst_command(state, paket, 8); } static int dst_get_tuna(struct dst_state *state) @@ -1465,7 +1463,7 @@ static int dst_set_diseqc(struct dvb_frontend *fe, struct dvb_diseqc_master_cmd u8 paket[8] = { 0x00, 0x08, 0x04, 0xe0, 0x10, 0x38, 0xf0, 0xec }; if (state->dst_type != DST_TYPE_IS_SAT) - return 0; + return -EOPNOTSUPP; if (cmd->msg_len > 0 && cmd->msg_len < 5) memcpy(&paket[3], cmd->msg, cmd->msg_len); else if (cmd->msg_len == 5 && state->dst_hw_cap & DST_TYPE_HAS_DISEQC5) @@ -1473,18 +1471,17 @@ static int dst_set_diseqc(struct dvb_frontend *fe, struct dvb_diseqc_master_cmd else return -EINVAL; paket[7] = dst_check_sum(&paket[0], 7); - dst_command(state, paket, 8); - return 0; + return dst_command(state, paket, 8); } static int dst_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t voltage) { - int need_cmd; + int need_cmd, retval = 0; struct dst_state *state = fe->demodulator_priv; state->voltage = voltage; if (state->dst_type != DST_TYPE_IS_SAT) - return 0; + return -EOPNOTSUPP; need_cmd = 0; @@ -1506,9 +1503,9 @@ static int dst_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t voltage) } if (need_cmd) - dst_tone_power_cmd(state); + retval = dst_tone_power_cmd(state); - return 0; + return retval; } static int dst_set_tone(struct dvb_frontend *fe, fe_sec_tone_mode_t tone) @@ -1517,7 +1514,7 @@ static int dst_set_tone(struct dvb_frontend *fe, fe_sec_tone_mode_t tone) state->tone = tone; if (state->dst_type != DST_TYPE_IS_SAT) - return 0; + return -EOPNOTSUPP; switch (tone) { case SEC_TONE_OFF: @@ -1533,9 +1530,7 @@ static int dst_set_tone(struct dvb_frontend *fe, fe_sec_tone_mode_t tone) default: return -EINVAL; } - dst_tone_power_cmd(state); - - return 0; + return dst_tone_power_cmd(state); } static int dst_send_burst(struct dvb_frontend *fe, fe_sec_mini_cmd_t minicmd) @@ -1543,7 +1538,7 @@ static int dst_send_burst(struct dvb_frontend *fe, fe_sec_mini_cmd_t minicmd) struct dst_state *state = fe->demodulator_priv; if (state->dst_type != DST_TYPE_IS_SAT) - return 0; + return -EOPNOTSUPP; state->minicmd = minicmd; switch (minicmd) { case SEC_MINI_A: @@ -1553,9 +1548,7 @@ static int dst_send_burst(struct dvb_frontend *fe, fe_sec_mini_cmd_t minicmd) state->tx_tuna[3] = 0xff; break; } - dst_tone_power_cmd(state); - - return 0; + return dst_tone_power_cmd(state); } @@ -1608,28 +1601,31 @@ static int dst_read_signal_strength(struct dvb_frontend *fe, u16 *strength) { struct dst_state *state = fe->demodulator_priv; - dst_get_signal(state); + int retval = dst_get_signal(state); *strength = state->decode_strength; - return 0; + return retval; } static int dst_read_snr(struct dvb_frontend *fe, u16 *snr) { struct dst_state *state = fe->demodulator_priv; - dst_get_signal(state); + int retval = dst_get_signal(state); *snr = state->decode_snr; - return 0; + return retval; } static int dst_set_frontend(struct dvb_frontend *fe, struct dvb_frontend_parameters *p) { + int retval = -EINVAL; struct dst_state *state = fe->demodulator_priv; if (p != NULL) { - dst_set_freq(state, p->frequency); + retval = dst_set_freq(state, p->frequency); + if(retval != 0) + return retval; dprintk(verbose, DST_DEBUG, 1, "Set Frequency=[%d]", p->frequency); if (state->dst_type == DST_TYPE_IS_SAT) { @@ -1647,10 +1643,10 @@ static int dst_set_frontend(struct dvb_frontend *fe, struct dvb_frontend_paramet dst_set_symbolrate(state, p->u.qam.symbol_rate); dst_set_modulation(state, p->u.qam.modulation); } - dst_write_tuna(fe); + retval = dst_write_tuna(fe); } - return 0; + return retval; } static int dst_tune_frontend(struct dvb_frontend* fe, From 7682a4c624e0011b5f3e8dd3021dc54961260d97 Mon Sep 17 00:00:00 2001 From: Dean Nelson Date: Tue, 8 Aug 2006 15:03:29 -0500 Subject: [PATCH 093/488] [IA64-SGI] Silent data corruption caused by XPC V2. Jack Steiner identified a problem where XPC can cause a silent data corruption. On module load, the placement may cause the xpc_remote_copy_buffer to span two physical pages. DMA transfers are done to the start virtual address translated to physical. This patch changes the buffer from a statically allocated buffer to a kmalloc'd buffer. Dean Nelson reviewed this before posting. I have tested it in the configuration that was showing the memory corruption and verified it works. I also added a BUG_ON statement to help catch this if a similar situation is encountered. Signed-off-by: Robin Holt Signed-off-by: Dean Nelson Signed-off-by: Jack Steiner Signed-off-by: Tony Luck --- arch/ia64/sn/kernel/xpc_channel.c | 4 ++-- arch/ia64/sn/kernel/xpc_main.c | 28 ++++++++++++++++------------ arch/ia64/sn/kernel/xpc_partition.c | 24 ++++++++---------------- include/asm-ia64/sn/xp.h | 22 ++++++++++++++++++---- include/asm-ia64/sn/xpc.h | 4 +++- 5 files changed, 47 insertions(+), 35 deletions(-) diff --git a/arch/ia64/sn/kernel/xpc_channel.c b/arch/ia64/sn/kernel/xpc_channel.c index c2f69f7942af..1f3540826e68 100644 --- a/arch/ia64/sn/kernel/xpc_channel.c +++ b/arch/ia64/sn/kernel/xpc_channel.c @@ -279,8 +279,8 @@ xpc_pull_remote_cachelines(struct xpc_partition *part, void *dst, return part->reason; } - bte_ret = xp_bte_copy((u64) src, (u64) ia64_tpa((u64) dst), - (u64) cnt, (BTE_NORMAL | BTE_WACQUIRE), NULL); + bte_ret = xp_bte_copy((u64) src, (u64) dst, (u64) cnt, + (BTE_NORMAL | BTE_WACQUIRE), NULL); if (bte_ret == BTE_SUCCESS) { return xpcSuccess; } diff --git a/arch/ia64/sn/kernel/xpc_main.c b/arch/ia64/sn/kernel/xpc_main.c index 5e8e59efb347..4d026f9dd98b 100644 --- a/arch/ia64/sn/kernel/xpc_main.c +++ b/arch/ia64/sn/kernel/xpc_main.c @@ -1052,6 +1052,8 @@ xpc_do_exit(enum xpc_retval reason) if (xpc_sysctl) { unregister_sysctl_table(xpc_sysctl); } + + kfree(xpc_remote_copy_buffer_base); } @@ -1212,24 +1214,20 @@ xpc_init(void) partid_t partid; struct xpc_partition *part; pid_t pid; + size_t buf_size; if (!ia64_platform_is("sn2")) { return -ENODEV; } - /* - * xpc_remote_copy_buffer is used as a temporary buffer for bte_copy'ng - * various portions of a partition's reserved page. Its size is based - * on the size of the reserved page header and part_nasids mask. So we - * need to ensure that the other items will fit as well. - */ - if (XPC_RP_VARS_SIZE > XPC_RP_HEADER_SIZE + XP_NASID_MASK_BYTES) { - dev_err(xpc_part, "xpc_remote_copy_buffer is not big enough\n"); - return -EPERM; - } - DBUG_ON((u64) xpc_remote_copy_buffer != - L1_CACHE_ALIGN((u64) xpc_remote_copy_buffer)); + + buf_size = max(XPC_RP_VARS_SIZE, + XPC_RP_HEADER_SIZE + XP_NASID_MASK_BYTES); + xpc_remote_copy_buffer = xpc_kmalloc_cacheline_aligned(buf_size, + GFP_KERNEL, &xpc_remote_copy_buffer_base); + if (xpc_remote_copy_buffer == NULL) + return -ENOMEM; snprintf(xpc_part->bus_id, BUS_ID_SIZE, "part"); snprintf(xpc_chan->bus_id, BUS_ID_SIZE, "chan"); @@ -1293,6 +1291,8 @@ xpc_init(void) if (xpc_sysctl) { unregister_sysctl_table(xpc_sysctl); } + + kfree(xpc_remote_copy_buffer_base); return -EBUSY; } @@ -1311,6 +1311,8 @@ xpc_init(void) if (xpc_sysctl) { unregister_sysctl_table(xpc_sysctl); } + + kfree(xpc_remote_copy_buffer_base); return -EBUSY; } @@ -1362,6 +1364,8 @@ xpc_init(void) if (xpc_sysctl) { unregister_sysctl_table(xpc_sysctl); } + + kfree(xpc_remote_copy_buffer_base); return -EBUSY; } diff --git a/arch/ia64/sn/kernel/xpc_partition.c b/arch/ia64/sn/kernel/xpc_partition.c index 2a89cfce4954..57c723f5cba4 100644 --- a/arch/ia64/sn/kernel/xpc_partition.c +++ b/arch/ia64/sn/kernel/xpc_partition.c @@ -71,19 +71,15 @@ struct xpc_partition xpc_partitions[XP_MAX_PARTITIONS + 1]; * Generic buffer used to store a local copy of portions of a remote * partition's reserved page (either its header and part_nasids mask, * or its vars). - * - * xpc_discovery runs only once and is a seperate thread that is - * very likely going to be processing in parallel with receiving - * interrupts. */ -char ____cacheline_aligned xpc_remote_copy_buffer[XPC_RP_HEADER_SIZE + - XP_NASID_MASK_BYTES]; +char *xpc_remote_copy_buffer; +void *xpc_remote_copy_buffer_base; /* * Guarantee that the kmalloc'd memory is cacheline aligned. */ -static void * +void * xpc_kmalloc_cacheline_aligned(size_t size, gfp_t flags, void **base) { /* see if kmalloc will give us cachline aligned memory by default */ @@ -148,7 +144,7 @@ xpc_get_rsvd_page_pa(int nasid) } } - bte_res = xp_bte_copy(rp_pa, ia64_tpa(buf), buf_len, + bte_res = xp_bte_copy(rp_pa, buf, buf_len, (BTE_NOTIFY | BTE_WACQUIRE), NULL); if (bte_res != BTE_SUCCESS) { dev_dbg(xpc_part, "xp_bte_copy failed %i\n", bte_res); @@ -447,7 +443,7 @@ xpc_check_remote_hb(void) /* pull the remote_hb cache line */ bres = xp_bte_copy(part->remote_vars_pa, - ia64_tpa((u64) remote_vars), + (u64) remote_vars, XPC_RP_VARS_SIZE, (BTE_NOTIFY | BTE_WACQUIRE), NULL); if (bres != BTE_SUCCESS) { @@ -498,8 +494,7 @@ xpc_get_remote_rp(int nasid, u64 *discovered_nasids, /* pull over the reserved page header and part_nasids mask */ - - bres = xp_bte_copy(*remote_rp_pa, ia64_tpa((u64) remote_rp), + bres = xp_bte_copy(*remote_rp_pa, (u64) remote_rp, XPC_RP_HEADER_SIZE + xp_nasid_mask_bytes, (BTE_NOTIFY | BTE_WACQUIRE), NULL); if (bres != BTE_SUCCESS) { @@ -554,11 +549,8 @@ xpc_get_remote_vars(u64 remote_vars_pa, struct xpc_vars *remote_vars) return xpcVarsNotSet; } - /* pull over the cross partition variables */ - - bres = xp_bte_copy(remote_vars_pa, ia64_tpa((u64) remote_vars), - XPC_RP_VARS_SIZE, + bres = xp_bte_copy(remote_vars_pa, (u64) remote_vars, XPC_RP_VARS_SIZE, (BTE_NOTIFY | BTE_WACQUIRE), NULL); if (bres != BTE_SUCCESS) { return xpc_map_bte_errors(bres); @@ -1239,7 +1231,7 @@ xpc_initiate_partid_to_nasids(partid_t partid, void *nasid_mask) part_nasid_pa = (u64) XPC_RP_PART_NASIDS(part->remote_rp_pa); - bte_res = xp_bte_copy(part_nasid_pa, ia64_tpa((u64) nasid_mask), + bte_res = xp_bte_copy(part_nasid_pa, (u64) nasid_mask, xp_nasid_mask_bytes, (BTE_NOTIFY | BTE_WACQUIRE), NULL); return xpc_map_bte_errors(bte_res); diff --git a/include/asm-ia64/sn/xp.h b/include/asm-ia64/sn/xp.h index 9bd2f9bf329b..6f807e0193b7 100644 --- a/include/asm-ia64/sn/xp.h +++ b/include/asm-ia64/sn/xp.h @@ -60,23 +60,37 @@ * the bte_copy() once in the hope that the failure was due to a temporary * aberration (i.e., the link going down temporarily). * - * See bte_copy for definition of the input parameters. + * src - physical address of the source of the transfer. + * vdst - virtual address of the destination of the transfer. + * len - number of bytes to transfer from source to destination. + * mode - see bte_copy() for definition. + * notification - see bte_copy() for definition. * * Note: xp_bte_copy() should never be called while holding a spinlock. */ static inline bte_result_t -xp_bte_copy(u64 src, u64 dest, u64 len, u64 mode, void *notification) +xp_bte_copy(u64 src, u64 vdst, u64 len, u64 mode, void *notification) { bte_result_t ret; + u64 pdst = ia64_tpa(vdst); - ret = bte_copy(src, dest, len, mode, notification); + /* + * Ensure that the physically mapped memory is contiguous. + * + * We do this by ensuring that the memory is from region 7 only. + * If the need should arise to use memory from one of the other + * regions, then modify the BUG_ON() statement to ensure that the + * memory from that region is always physically contiguous. + */ + BUG_ON(REGION_NUMBER(vdst) != RGN_KERNEL); + ret = bte_copy(src, pdst, len, mode, notification); if (ret != BTE_SUCCESS) { if (!in_interrupt()) { cond_resched(); } - ret = bte_copy(src, dest, len, mode, notification); + ret = bte_copy(src, pdst, len, mode, notification); } return ret; diff --git a/include/asm-ia64/sn/xpc.h b/include/asm-ia64/sn/xpc.h index b72af597878d..35e1386f37ab 100644 --- a/include/asm-ia64/sn/xpc.h +++ b/include/asm-ia64/sn/xpc.h @@ -683,7 +683,9 @@ extern struct xpc_vars *xpc_vars; extern struct xpc_rsvd_page *xpc_rsvd_page; extern struct xpc_vars_part *xpc_vars_part; extern struct xpc_partition xpc_partitions[XP_MAX_PARTITIONS + 1]; -extern char xpc_remote_copy_buffer[]; +extern char *xpc_remote_copy_buffer; +extern void *xpc_remote_copy_buffer_base; +extern void *xpc_kmalloc_cacheline_aligned(size_t, gfp_t, void **); extern struct xpc_rsvd_page *xpc_rsvd_page_init(void); extern void xpc_allow_IPI_ops(void); extern void xpc_restrict_IPI_ops(void); From 70f8e78e150425b01c1099087ad3decacf7e4ccf Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 8 Aug 2006 16:47:37 -0700 Subject: [PATCH 094/488] [RTNETLINK]: Fix IFLA_ADDRESS handling. The ->set_mac_address handlers expect a pointer to a sockaddr which contains the MAC address, whereas IFLA_ADDRESS provides just the MAC address itself. So whip up a sockaddr to wrap around the netlink attribute for the ->set_mac_address call. Signed-off-by: David S. Miller --- net/core/rtnetlink.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index 20e5bb73f147..30cc1ba6ed5c 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -394,6 +394,9 @@ static int do_setlink(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg) } if (ida[IFLA_ADDRESS - 1]) { + struct sockaddr *sa; + int len; + if (!dev->set_mac_address) { err = -EOPNOTSUPP; goto out; @@ -405,7 +408,17 @@ static int do_setlink(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg) if (ida[IFLA_ADDRESS - 1]->rta_len != RTA_LENGTH(dev->addr_len)) goto out; - err = dev->set_mac_address(dev, RTA_DATA(ida[IFLA_ADDRESS - 1])); + len = sizeof(sa_family_t) + dev->addr_len; + sa = kmalloc(len, GFP_KERNEL); + if (!sa) { + err = -ENOMEM; + goto out; + } + sa->sa_family = dev->type; + memcpy(sa->sa_data, RTA_DATA(ida[IFLA_ADDRESS - 1]), + dev->addr_len); + err = dev->set_mac_address(dev, sa); + kfree(sa); if (err) goto out; send_addr_notify = 1; From 7b1ba8de569460894efa892457af7a37c0d574f9 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Tue, 8 Aug 2006 16:48:51 -0700 Subject: [PATCH 095/488] [IPX]: Another nonlinear receive fix Need to check some more cases in IPX receive. If the skb is purely fragments, the IPX header needs to be extracted. The function pskb_may_pull() may in theory invalidate all the pointers in the skb, so references to ipx header must be refreshed. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller --- net/ipx/af_ipx.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/net/ipx/af_ipx.c b/net/ipx/af_ipx.c index c13e86b14f69..401964204866 100644 --- a/net/ipx/af_ipx.c +++ b/net/ipx/af_ipx.c @@ -1642,14 +1642,17 @@ static int ipx_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_ty if ((skb = skb_share_check(skb, GFP_ATOMIC)) == NULL) goto out; - ipx = ipx_hdr(skb); - ipx_pktsize = ntohs(ipx->ipx_pktsize); + if (!pskb_may_pull(skb, sizeof(struct ipxhdr))) + goto drop; + + ipx_pktsize = ntohs(ipxhdr(skb)->ipx_pktsize); /* Too small or invalid header? */ if (ipx_pktsize < sizeof(struct ipxhdr) || !pskb_may_pull(skb, ipx_pktsize)) goto drop; + ipx = ipx_hdr(skb); if (ipx->ipx_checksum != IPX_NO_CHECKSUM && ipx->ipx_checksum != ipx_cksum(ipx, ipx_pktsize)) goto drop; From 013b68bf7cb4edfb8753aac9bde3cb60c84bc067 Mon Sep 17 00:00:00 2001 From: Brice Goglin Date: Wed, 9 Aug 2006 00:07:53 -0400 Subject: [PATCH 096/488] [PATCH] myri10ge: always re-enable dummy rdmas in myri10ge_resume Dummy RDMA are always enabled on device startup since commit 9a71db721a2cbb9921b929b2699ab181f5a3c6c0 (to work around buggy PCIe chipsets which do not implement resending properly). But, we also need to always re-enable them when resuming the device. Signed-off-by: Brice Goglin Signed-off-by: Jeff Garzik --- drivers/net/myri10ge/myri10ge.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/myri10ge/myri10ge.c b/drivers/net/myri10ge/myri10ge.c index 06440a86baef..9bdd43ab3573 100644 --- a/drivers/net/myri10ge/myri10ge.c +++ b/drivers/net/myri10ge/myri10ge.c @@ -2425,7 +2425,7 @@ static int myri10ge_resume(struct pci_dev *pdev) } myri10ge_reset(mgp); - myri10ge_dummy_rdma(mgp, mgp->tx.boundary != 4096); + myri10ge_dummy_rdma(mgp, 1); /* Save configuration space to be restored if the * nic resets due to a parity error */ From 85455dd34219376dcc7dce94bea67058f0b7d731 Mon Sep 17 00:00:00 2001 From: Keith Owens Date: Tue, 8 Aug 2006 13:51:02 +1000 Subject: [PATCH 097/488] [PATCH] Fix compile problem when sata debugging is on Fix a sata debug print statement that still uses an old variable name. Signed-off-by: Keith Owens Signed-off-by: Jeff Garzik --- drivers/scsi/ata_piix.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/ata_piix.c b/drivers/scsi/ata_piix.c index 298e4643b969..5e8afc876980 100644 --- a/drivers/scsi/ata_piix.c +++ b/drivers/scsi/ata_piix.c @@ -567,8 +567,8 @@ static int piix_sata_prereset(struct ata_port *ap) present = 1; } - DPRINTK("ata%u: LEAVE, pcs=0x%x present_mask=0x%x\n", - ap->id, pcs, present_mask); + DPRINTK("ata%u: LEAVE, pcs=0x%x present=0x%x\n", + ap->id, pcs, present); if (!present) { ata_port_printk(ap, KERN_INFO, "SATA port has no device.\n"); From 22aac0896b1b0b8cabaf00714c55dd12f25d5738 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 8 Aug 2006 14:08:59 +0900 Subject: [PATCH 098/488] [PATCH] libata: clear sdev->locked on door lock failure SCSI EH locks door if sdev->locked is set. Sometimes door lock command fails continuously (e.g. when medium is not present) and as libata uses EH to acquire sense data, this easily creates a loop where a failed lock door invokes EH and EH issues lock door on completion. This patch clears sdev->locked on door lock failure to break this loop. This problem has been spotted and diagnosed by Unicorn Chang . Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/scsi/libata-scsi.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/scsi/libata-scsi.c b/drivers/scsi/libata-scsi.c index 7ced41ecde86..e92c31d698ff 100644 --- a/drivers/scsi/libata-scsi.c +++ b/drivers/scsi/libata-scsi.c @@ -2353,6 +2353,19 @@ static void atapi_qc_complete(struct ata_queued_cmd *qc) ata_gen_ata_desc_sense(qc); } + /* SCSI EH automatically locks door if sdev->locked is + * set. Sometimes door lock request continues to + * fail, for example, when no media is present. This + * creates a loop - SCSI EH issues door lock which + * fails and gets invoked again to acquire sense data + * for the failed command. + * + * If door lock fails, always clear sdev->locked to + * avoid this infinite loop. + */ + if (qc->cdb[0] == ALLOW_MEDIUM_REMOVAL) + qc->dev->sdev->locked = 0; + qc->scsicmd->result = SAM_STAT_CHECK_CONDITION; qc->scsidone(cmd); ata_qc_free(qc); From ebc4599990898ecaaace7ed40dfad6d8d9f2a24a Mon Sep 17 00:00:00 2001 From: Horst Hummel Date: Wed, 9 Aug 2006 10:30:22 +0200 Subject: [PATCH 099/488] [S390] dasd set offline kernel bug. The request queue flush function of the dasd driver has to dequeue the requests first and then call the end request function. Otherwise a kernel bug in ll_rw_block.c might get triggered. Signed-off-by: Horst Hummel Signed-off-by: Martin Schwidefsky --- drivers/s390/block/dasd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c index 4bf03fb67f8d..d8e9b95f0a1a 100644 --- a/drivers/s390/block/dasd.c +++ b/drivers/s390/block/dasd.c @@ -1730,8 +1730,8 @@ dasd_flush_request_queue(struct dasd_device * device) req = elv_next_request(device->request_queue); if (req == NULL) break; - dasd_end_request(req, 0); blkdev_dequeue_request(req); + dasd_end_request(req, 0); } spin_unlock_irq(&device->request_queue_lock); } From 7c91767a6b701543c93ebcd611dab61deff3dad1 Mon Sep 17 00:00:00 2001 From: Dmitry Mishin Date: Wed, 9 Aug 2006 02:25:54 -0700 Subject: [PATCH 100/488] [NET]: add_timer -> mod_timer() in dst_run_gc() Patch from Dmitry Mishin : Replace add_timer() by mod_timer() in dst_run_gc in order to avoid BUG message. CPU1 CPU2 dst_run_gc() entered dst_run_gc() entered spin_lock(&dst_lock) ..... del_timer(&dst_gc_timer) fail to get lock .... mod_timer() <--- puts timer back to the list add_timer(&dst_gc_timer) <--- BUG because timer is in list already. Found during OpenVZ internal testing. At first we thought that it is OpenVZ specific as we added dst_run_gc(0) call in dst_dev_event(), but as Alexey pointed to me it is possible to trigger this condition in mainstream kernel. F.e. timer has fired on CPU2, but the handler was preeempted by an irq before dst_lock is tried. Meanwhile, someone on CPU1 adds an entry to gc list and starts the timer. If CPU2 was preempted long enough, this timer can expire simultaneously with resuming timer handler on CPU1, arriving exactly to the situation described. Signed-off-by: Dmitry Mishin Signed-off-by: Kirill Korotaev Signed-off-by: Alexey Kuznetsov Signed-off-by: David S. Miller --- net/core/dst.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/net/core/dst.c b/net/core/dst.c index 470c05bc4cb2..1a5e49da0e77 100644 --- a/net/core/dst.c +++ b/net/core/dst.c @@ -95,12 +95,11 @@ static void dst_run_gc(unsigned long dummy) dst_gc_timer_inc = DST_GC_INC; dst_gc_timer_expires = DST_GC_MIN; } - dst_gc_timer.expires = jiffies + dst_gc_timer_expires; #if RT_CACHE_DEBUG >= 2 printk("dst_total: %d/%d %ld\n", atomic_read(&dst_total), delayed, dst_gc_timer_expires); #endif - add_timer(&dst_gc_timer); + mod_timer(&dst_gc_timer, jiffies + dst_gc_timer_expires); out: spin_unlock(&dst_lock); From 79860a9a79a17f1bed0713680a3995467405ba49 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Wed, 9 Aug 2006 15:04:58 +0100 Subject: [PATCH 101/488] [PATCH] PATCH: 2.6.18 oops on boot fix for IDE When the IDE fix for Jmicron went in one piece went walking somewhere (send log shows my end somehow). Without this sometimes you get an oops on boot. Signed-off-by: Alan Cox Signed-off-by: Greg Kroah-Hartman --- drivers/ide/pci/generic.c | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/drivers/ide/pci/generic.c b/drivers/ide/pci/generic.c index 2f962cfa3f7f..78810ba982e9 100644 --- a/drivers/ide/pci/generic.c +++ b/drivers/ide/pci/generic.c @@ -180,6 +180,36 @@ static ide_pci_device_t generic_chipsets[] __devinitdata = { .channels = 2, .autodma = AUTODMA, .bootable = OFF_BOARD, + },{ /* 15 */ + .name = "JMB361", + .init_hwif = init_hwif_generic, + .channels = 2, + .autodma = AUTODMA, + .bootable = OFF_BOARD, + },{ /* 16 */ + .name = "JMB363", + .init_hwif = init_hwif_generic, + .channels = 2, + .autodma = AUTODMA, + .bootable = OFF_BOARD, + },{ /* 17 */ + .name = "JMB365", + .init_hwif = init_hwif_generic, + .channels = 2, + .autodma = AUTODMA, + .bootable = OFF_BOARD, + },{ /* 18 */ + .name = "JMB366", + .init_hwif = init_hwif_generic, + .channels = 2, + .autodma = AUTODMA, + .bootable = OFF_BOARD, + },{ /* 19 */ + .name = "JMB368", + .init_hwif = init_hwif_generic, + .channels = 2, + .autodma = AUTODMA, + .bootable = OFF_BOARD, } }; From 06aebfb7faa13258af5230ff3d1587ece6c0250e Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Wed, 9 Aug 2006 16:52:04 -0700 Subject: [PATCH 102/488] [IPV6]: The ifa lock is a BH lock The ifa lock is expected to be taken in BH context (by addrconf timers) so we must disable BH when accessing it from user context. Signed-off-by: Herbert Xu Signed-off-by: David S. Miller --- net/ipv6/addrconf.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 8ea1e36bf8eb..0c5042e7380d 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -1909,11 +1909,11 @@ static int inet6_addr_add(int ifindex, struct in6_addr *pfx, int plen, ifp = ipv6_add_addr(idev, pfx, plen, scope, ifa_flags); if (!IS_ERR(ifp)) { - spin_lock(&ifp->lock); + spin_lock_bh(&ifp->lock); ifp->valid_lft = valid_lft; ifp->prefered_lft = prefered_lft; ifp->tstamp = jiffies; - spin_unlock(&ifp->lock); + spin_unlock_bh(&ifp->lock); addrconf_dad_start(ifp, 0); in6_ifa_put(ifp); From fff642570dc47ab76491fe81ee6599269c4eb13e Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 9 Aug 2006 17:36:15 -0700 Subject: [PATCH 103/488] [IPX]: Fix typo, ipxhdr() --> ipx_hdr() Noticed by Dave Jones. Signed-off-by: David S. Miller --- net/ipx/af_ipx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ipx/af_ipx.c b/net/ipx/af_ipx.c index 401964204866..bef3f61569f7 100644 --- a/net/ipx/af_ipx.c +++ b/net/ipx/af_ipx.c @@ -1645,7 +1645,7 @@ static int ipx_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_ty if (!pskb_may_pull(skb, sizeof(struct ipxhdr))) goto drop; - ipx_pktsize = ntohs(ipxhdr(skb)->ipx_pktsize); + ipx_pktsize = ntohs(ipx_hdr(skb)->ipx_pktsize); /* Too small or invalid header? */ if (ipx_pktsize < sizeof(struct ipxhdr) || From 0e1edbd99994270023cea5afe593f972eb09a778 Mon Sep 17 00:00:00 2001 From: Nathan Scott Date: Thu, 10 Aug 2006 14:40:41 +1000 Subject: [PATCH 104/488] [XFS] Fix xfs_free_extent related NULL pointer dereference. We recently fixed an out-of-space deadlock in XFS, and part of that fix involved the addition of the XFS_ALLOC_FLAG_FREEING flag to some of the space allocator calls to indicate they're freeing space, not allocating it. There was a missed xfs_alloc_fix_freelist condition test that did not correctly test "flags". The same test would also test an uninitialised structure field (args->userdata) and depending on its value either would or would not return early with a critical buffer pointer set to NULL. This fixes that up, adds asserts to several places to catch future botches of this nature, and skips sections of xfs_alloc_fix_freelist that are irrelevent for the space-freeing case. SGI-PV: 955303 SGI-Modid: xfs-linux-melb:xfs-kern:26743a Signed-off-by: Nathan Scott --- fs/xfs/xfs_alloc.c | 103 ++++++++++++++++++++++++--------------------- 1 file changed, 54 insertions(+), 49 deletions(-) diff --git a/fs/xfs/xfs_alloc.c b/fs/xfs/xfs_alloc.c index eef6763f3a67..d2bbcd882a69 100644 --- a/fs/xfs/xfs_alloc.c +++ b/fs/xfs/xfs_alloc.c @@ -1835,40 +1835,47 @@ xfs_alloc_fix_freelist( &agbp))) return error; if (!pag->pagf_init) { + ASSERT(flags & XFS_ALLOC_FLAG_TRYLOCK); + ASSERT(!(flags & XFS_ALLOC_FLAG_FREEING)); args->agbp = NULL; return 0; } } else agbp = NULL; - /* If this is a metadata preferred pag and we are user data + /* + * If this is a metadata preferred pag and we are user data * then try somewhere else if we are not being asked to * try harder at this point */ - if (pag->pagf_metadata && args->userdata && flags) { + if (pag->pagf_metadata && args->userdata && + (flags & XFS_ALLOC_FLAG_TRYLOCK)) { + ASSERT(!(flags & XFS_ALLOC_FLAG_FREEING)); args->agbp = NULL; return 0; } - need = XFS_MIN_FREELIST_PAG(pag, mp); - delta = need > pag->pagf_flcount ? need - pag->pagf_flcount : 0; - /* - * If it looks like there isn't a long enough extent, or enough - * total blocks, reject it. - */ - longest = (pag->pagf_longest > delta) ? - (pag->pagf_longest - delta) : - (pag->pagf_flcount > 0 || pag->pagf_longest > 0); - if (args->minlen + args->alignment + args->minalignslop - 1 > longest || - (!(flags & XFS_ALLOC_FLAG_FREEING) && - (int)(pag->pagf_freeblks + pag->pagf_flcount - - need - args->total) < - (int)args->minleft)) { - if (agbp) - xfs_trans_brelse(tp, agbp); - args->agbp = NULL; - return 0; + if (!(flags & XFS_ALLOC_FLAG_FREEING)) { + need = XFS_MIN_FREELIST_PAG(pag, mp); + delta = need > pag->pagf_flcount ? need - pag->pagf_flcount : 0; + /* + * If it looks like there isn't a long enough extent, or enough + * total blocks, reject it. + */ + longest = (pag->pagf_longest > delta) ? + (pag->pagf_longest - delta) : + (pag->pagf_flcount > 0 || pag->pagf_longest > 0); + if ((args->minlen + args->alignment + args->minalignslop - 1) > + longest || + ((int)(pag->pagf_freeblks + pag->pagf_flcount - + need - args->total) < (int)args->minleft)) { + if (agbp) + xfs_trans_brelse(tp, agbp); + args->agbp = NULL; + return 0; + } } + /* * Get the a.g. freespace buffer. * Can fail if we're not blocking on locks, and it's held. @@ -1878,6 +1885,8 @@ xfs_alloc_fix_freelist( &agbp))) return error; if (agbp == NULL) { + ASSERT(flags & XFS_ALLOC_FLAG_TRYLOCK); + ASSERT(!(flags & XFS_ALLOC_FLAG_FREEING)); args->agbp = NULL; return 0; } @@ -1887,22 +1896,24 @@ xfs_alloc_fix_freelist( */ agf = XFS_BUF_TO_AGF(agbp); need = XFS_MIN_FREELIST(agf, mp); - delta = need > be32_to_cpu(agf->agf_flcount) ? - (need - be32_to_cpu(agf->agf_flcount)) : 0; /* * If there isn't enough total or single-extent, reject it. */ - longest = be32_to_cpu(agf->agf_longest); - longest = (longest > delta) ? (longest - delta) : - (be32_to_cpu(agf->agf_flcount) > 0 || longest > 0); - if (args->minlen + args->alignment + args->minalignslop - 1 > longest || - (!(flags & XFS_ALLOC_FLAG_FREEING) && - (int)(be32_to_cpu(agf->agf_freeblks) + - be32_to_cpu(agf->agf_flcount) - need - args->total) < - (int)args->minleft)) { - xfs_trans_brelse(tp, agbp); - args->agbp = NULL; - return 0; + if (!(flags & XFS_ALLOC_FLAG_FREEING)) { + delta = need > be32_to_cpu(agf->agf_flcount) ? + (need - be32_to_cpu(agf->agf_flcount)) : 0; + longest = be32_to_cpu(agf->agf_longest); + longest = (longest > delta) ? (longest - delta) : + (be32_to_cpu(agf->agf_flcount) > 0 || longest > 0); + if ((args->minlen + args->alignment + args->minalignslop - 1) > + longest || + ((int)(be32_to_cpu(agf->agf_freeblks) + + be32_to_cpu(agf->agf_flcount) - need - args->total) < + (int)args->minleft)) { + xfs_trans_brelse(tp, agbp); + args->agbp = NULL; + return 0; + } } /* * Make the freelist shorter if it's too long. @@ -1950,12 +1961,11 @@ xfs_alloc_fix_freelist( * on a completely full ag. */ if (targs.agbno == NULLAGBLOCK) { - if (!(flags & XFS_ALLOC_FLAG_FREEING)) { - xfs_trans_brelse(tp, agflbp); - args->agbp = NULL; - return 0; - } - break; + if (flags & XFS_ALLOC_FLAG_FREEING) + break; + xfs_trans_brelse(tp, agflbp); + args->agbp = NULL; + return 0; } /* * Put each allocated block on the list. @@ -2442,31 +2452,26 @@ xfs_free_extent( xfs_fsblock_t bno, /* starting block number of extent */ xfs_extlen_t len) /* length of extent */ { -#ifdef DEBUG - xfs_agf_t *agf; /* a.g. freespace header */ -#endif - xfs_alloc_arg_t args; /* allocation argument structure */ + xfs_alloc_arg_t args; int error; ASSERT(len != 0); + memset(&args, 0, sizeof(xfs_alloc_arg_t)); args.tp = tp; args.mp = tp->t_mountp; args.agno = XFS_FSB_TO_AGNO(args.mp, bno); ASSERT(args.agno < args.mp->m_sb.sb_agcount); args.agbno = XFS_FSB_TO_AGBNO(args.mp, bno); - args.alignment = 1; - args.minlen = args.minleft = args.minalignslop = 0; down_read(&args.mp->m_peraglock); args.pag = &args.mp->m_perag[args.agno]; if ((error = xfs_alloc_fix_freelist(&args, XFS_ALLOC_FLAG_FREEING))) goto error0; #ifdef DEBUG ASSERT(args.agbp != NULL); - agf = XFS_BUF_TO_AGF(args.agbp); - ASSERT(args.agbno + len <= be32_to_cpu(agf->agf_length)); + ASSERT((args.agbno + len) <= + be32_to_cpu(XFS_BUF_TO_AGF(args.agbp)->agf_length)); #endif - error = xfs_free_ag_extent(tp, args.agbp, args.agno, args.agbno, - len, 0); + error = xfs_free_ag_extent(tp, args.agbp, args.agno, args.agbno, len, 0); error0: up_read(&args.mp->m_peraglock); return error; From 51704c609fcf256dacfcfae3622eb6ef53ac5b48 Mon Sep 17 00:00:00 2001 From: Albert Lee Date: Wed, 9 Aug 2006 18:36:22 +0800 Subject: [PATCH 105/488] [PATCH] libata: Use ATA_FLAG_PIO_POLLING for pdc_adma pdc_adma was overlooked and broken by the irq-pio patch: Only HSM_ST_LAST interrupts should be delivered to this LLDD. Adding ATA_FLAG_PIO_POLLING to pdc_adma fixes the problem (temporarily), before we convert the irq handler of pdc_adma to handle all interrupts. Signed-off-by: Albert Lee Signed-off-by: Jeff Garzik --- drivers/scsi/pdc_adma.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/pdc_adma.c b/drivers/scsi/pdc_adma.c index d1f38c32aa15..efc8fff1d250 100644 --- a/drivers/scsi/pdc_adma.c +++ b/drivers/scsi/pdc_adma.c @@ -183,7 +183,8 @@ static struct ata_port_info adma_port_info[] = { { .sht = &adma_ata_sht, .host_flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST | - ATA_FLAG_NO_LEGACY | ATA_FLAG_MMIO, + ATA_FLAG_NO_LEGACY | ATA_FLAG_MMIO | + ATA_FLAG_PIO_POLLING, .pio_mask = 0x10, /* pio4 */ .udma_mask = 0x1f, /* udma0-4 */ .port_ops = &adma_ata_ops, From a34b6fc04d58ad72fe0cc74cd448f4551bd2ebaf Mon Sep 17 00:00:00 2001 From: Martin Hicks Date: Wed, 5 Jul 2006 15:06:13 -0400 Subject: [PATCH 106/488] [PATCH] libata: PHY reset requires writing 0x4 to SControl Hi, Reading the Intel VSC and AHCI it seems like writing 0x302 is incorrect. The only valid values are 4, 1 and 0. Writing 4 disables the PHY. Signed-off-by: Martin Hicks Signed-off-by: Jeff Garzik --- drivers/scsi/libata-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c index 16fc2dd8f2f7..73dd6c8deede 100644 --- a/drivers/scsi/libata-core.c +++ b/drivers/scsi/libata-core.c @@ -2746,7 +2746,7 @@ int sata_std_hardreset(struct ata_port *ap, unsigned int *class) if ((rc = sata_scr_read(ap, SCR_CONTROL, &scontrol))) return rc; - scontrol = (scontrol & 0x0f0) | 0x302; + scontrol = (scontrol & 0x0f0) | 0x304; if ((rc = sata_scr_write(ap, SCR_CONTROL, scontrol))) return rc; From 8d3d35b4e20dc2e678fc7cb51165905b5a32fb76 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Wed, 9 Aug 2006 14:14:50 -0700 Subject: [PATCH 107/488] [PATCH] sky2: phy power problems on 88e805X chips On the 88E805X chipsets (used in laptops), the PHY was not getting powered out of shutdown properly. The variable reg1 was getting reused incorrectly. This is probably the cause of the bug. http://bugzilla.kernel.org/show_bug.cgi?id=6471 Signed-off-by: Stephen Hemminger Signed-off-by: Jeff Garzik --- drivers/net/sky2.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c index de91609ca112..933e87f1cc68 100644 --- a/drivers/net/sky2.c +++ b/drivers/net/sky2.c @@ -233,6 +233,8 @@ static void sky2_set_power_state(struct sky2_hw *hw, pci_power_t state) if (hw->ports > 1) reg1 |= PCI_Y2_PHY2_COMA; } + sky2_pci_write32(hw, PCI_DEV_REG1, reg1); + udelay(100); if (hw->chip_id == CHIP_ID_YUKON_EC_U) { sky2_pci_write32(hw, PCI_DEV_REG3, 0); @@ -242,9 +244,6 @@ static void sky2_set_power_state(struct sky2_hw *hw, pci_power_t state) sky2_pci_write32(hw, PCI_DEV_REG5, 0); } - sky2_pci_write32(hw, PCI_DEV_REG1, reg1); - udelay(100); - break; case PCI_D3hot: From d0710c7c9eea2145a0614f39dbe9dc8cb4ae14da Mon Sep 17 00:00:00 2001 From: Horst Hummel Date: Thu, 10 Aug 2006 15:45:16 +0200 Subject: [PATCH 108/488] [S390] dasd calls kzalloc while holding a spinlock. The dasd function dasd_set_uid calls kzalloc while holding the dasd_devmap_lock. Rearrange the code to do the memory allocation outside the lock. Signed-off-by: Horst Hummel Signed-off-by: Martin Schwidefsky --- drivers/s390/block/dasd_devmap.c | 65 ++++++++++++++------------------ drivers/s390/block/dasd_eckd.c | 8 ++-- 2 files changed, 32 insertions(+), 41 deletions(-) diff --git a/drivers/s390/block/dasd_devmap.c b/drivers/s390/block/dasd_devmap.c index 7f6fdac74706..6fcb28d55a9d 100644 --- a/drivers/s390/block/dasd_devmap.c +++ b/drivers/s390/block/dasd_devmap.c @@ -89,7 +89,7 @@ static char *dasd[256]; module_param_array(dasd, charp, NULL, 0); /* - * Single spinlock to protect devmap structures and lists. + * Single spinlock to protect devmap and servermap structures and lists. */ static DEFINE_SPINLOCK(dasd_devmap_lock); @@ -858,39 +858,6 @@ static struct attribute_group dasd_attr_group = { .attrs = dasd_attrs, }; -/* - * Check if the related storage server is already contained in the - * dasd_serverlist. If server is not contained, create new entry. - * Return 0 if server was already in serverlist, - * 1 if the server was added successfully - * <0 in case of error. - */ -static int -dasd_add_server(struct dasd_uid *uid) -{ - struct dasd_servermap *new, *tmp; - - /* check if server is already contained */ - list_for_each_entry(tmp, &dasd_serverlist, list) - // normale cmp? - if (strncmp(tmp->sid.vendor, uid->vendor, - sizeof(tmp->sid.vendor)) == 0 - && strncmp(tmp->sid.serial, uid->serial, - sizeof(tmp->sid.serial)) == 0) - return 0; - - new = (struct dasd_servermap *) - kzalloc(sizeof(struct dasd_servermap), GFP_KERNEL); - if (!new) - return -ENOMEM; - - strncpy(new->sid.vendor, uid->vendor, sizeof(new->sid.vendor)); - strncpy(new->sid.serial, uid->serial, sizeof(new->sid.serial)); - list_add(&new->list, &dasd_serverlist); - return 1; -} - - /* * Return copy of the device unique identifier. */ @@ -910,6 +877,8 @@ dasd_get_uid(struct ccw_device *cdev, struct dasd_uid *uid) /* * Register the given device unique identifier into devmap struct. + * In addition check if the related storage server is already contained in the + * dasd_serverlist. If server is not contained, create new entry. * Return 0 if server was already in serverlist, * 1 if the server was added successful * <0 in case of error. @@ -918,16 +887,38 @@ int dasd_set_uid(struct ccw_device *cdev, struct dasd_uid *uid) { struct dasd_devmap *devmap; - int rc; + struct dasd_servermap *srv, *tmp; devmap = dasd_find_busid(cdev->dev.bus_id); if (IS_ERR(devmap)) return PTR_ERR(devmap); + + /* generate entry for servermap */ + srv = (struct dasd_servermap *) + kzalloc(sizeof(struct dasd_servermap), GFP_KERNEL); + if (!srv) + return -ENOMEM; + strncpy(srv->sid.vendor, uid->vendor, sizeof(srv->sid.vendor) - 1); + strncpy(srv->sid.serial, uid->serial, sizeof(srv->sid.serial) - 1); + + /* server is already contained ? */ spin_lock(&dasd_devmap_lock); devmap->uid = *uid; - rc = dasd_add_server(uid); + list_for_each_entry(tmp, &dasd_serverlist, list) { + if (!memcmp(&srv->sid, &tmp->sid, + sizeof(struct dasd_servermap))) { + kfree(srv); + srv = NULL; + break; + } + } + + /* add servermap to serverlist */ + if (srv) + list_add(&srv->list, &dasd_serverlist); spin_unlock(&dasd_devmap_lock); - return rc; + + return (srv ? 1 : 0); } EXPORT_SYMBOL_GPL(dasd_set_uid); diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index 39c2281371b5..957ed5db98e4 100644 --- a/drivers/s390/block/dasd_eckd.c +++ b/drivers/s390/block/dasd_eckd.c @@ -468,11 +468,11 @@ dasd_eckd_generate_uid(struct dasd_device *device, struct dasd_uid *uid) return -ENODEV; memset(uid, 0, sizeof(struct dasd_uid)); - strncpy(uid->vendor, confdata->ned1.HDA_manufacturer, - sizeof(uid->vendor) - 1); + memcpy(uid->vendor, confdata->ned1.HDA_manufacturer, + sizeof(uid->vendor) - 1); EBCASC(uid->vendor, sizeof(uid->vendor) - 1); - strncpy(uid->serial, confdata->ned1.HDA_location, - sizeof(uid->serial) - 1); + memcpy(uid->serial, confdata->ned1.HDA_location, + sizeof(uid->serial) - 1); EBCASC(uid->serial, sizeof(uid->serial) - 1); uid->ssid = confdata->neq.subsystemID; if (confdata->ned2.sneq.flags == 0x40) { From e54b82d739d4a2ef992976c8c0692cdf89286420 Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Thu, 10 Aug 2006 10:46:56 -0700 Subject: [PATCH 109/488] IB/mthca: Make fence flag work for send work requests The fence bit needs to be set in the doorbell too, not just the WQE. Signed-off-by: Michael S. Tsirkin Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mthca/mthca_qp.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/infiniband/hw/mthca/mthca_qp.c b/drivers/infiniband/hw/mthca/mthca_qp.c index cd8b6721ac9c..157b4f8ac407 100644 --- a/drivers/infiniband/hw/mthca/mthca_qp.c +++ b/drivers/infiniband/hw/mthca/mthca_qp.c @@ -99,6 +99,10 @@ enum { MTHCA_QP_BIT_RSC = 1 << 3 }; +enum { + MTHCA_SEND_DOORBELL_FENCE = 1 << 5 +}; + struct mthca_qp_path { __be32 port_pkey; u8 rnr_retry; @@ -1502,7 +1506,7 @@ int mthca_tavor_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, int i; int size; int size0 = 0; - u32 f0 = 0; + u32 f0; int ind; u8 op0 = 0; @@ -1686,6 +1690,8 @@ int mthca_tavor_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, if (!size0) { size0 = size; op0 = mthca_opcode[wr->opcode]; + f0 = wr->send_flags & IB_SEND_FENCE ? + MTHCA_SEND_DOORBELL_FENCE : 0; } ++ind; @@ -1843,7 +1849,7 @@ int mthca_arbel_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, int i; int size; int size0 = 0; - u32 f0 = 0; + u32 f0; int ind; u8 op0 = 0; @@ -2051,6 +2057,8 @@ int mthca_arbel_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, if (!size0) { size0 = size; op0 = mthca_opcode[wr->opcode]; + f0 = wr->send_flags & IB_SEND_FENCE ? + MTHCA_SEND_DOORBELL_FENCE : 0; } ++ind; From a19aa5c5fdda8b556ab238177ee27c5ef7873c94 Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Fri, 11 Aug 2006 08:56:57 -0700 Subject: [PATCH 110/488] IB/mthca: Fix potential AB-BA deadlock with CQ locks When destroying a QP, mthca locks both the QP's send CQ and receive CQ. However, the following scenario is perfectly valid: QP_a: send_cq == CQ_x, recv_cq == CQ_y QP_b: send_cq == CQ_y, recv_cq == CQ_x The old mthca code simply locked send_cq and then recv_cq, which in this case could lead to an AB-BA deadlock if QP_a and QP_b were destroyed simultaneously. We can fix this by changing the locking code to lock the CQ with the lower CQ number first, which will create a consistent lock ordering. Also, the second CQ is locked with spin_lock_nested() to tell lockdep that we know what we're doing with the lock nesting. This bug was found by lockdep. Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mthca/mthca_provider.h | 4 +- drivers/infiniband/hw/mthca/mthca_qp.c | 42 ++++++++++++++------ 2 files changed, 32 insertions(+), 14 deletions(-) diff --git a/drivers/infiniband/hw/mthca/mthca_provider.h b/drivers/infiniband/hw/mthca/mthca_provider.h index 8de2887ba15c..9a5bece3fa5c 100644 --- a/drivers/infiniband/hw/mthca/mthca_provider.h +++ b/drivers/infiniband/hw/mthca/mthca_provider.h @@ -136,8 +136,8 @@ struct mthca_ah { * We have one global lock that protects dev->cq/qp_table. Each * struct mthca_cq/qp also has its own lock. An individual qp lock * may be taken inside of an individual cq lock. Both cqs attached to - * a qp may be locked, with the send cq locked first. No other - * nesting should be done. + * a qp may be locked, with the cq with the lower cqn locked first. + * No other nesting should be done. * * Each struct mthca_cq/qp also has an ref count, protected by the * corresponding table lock. The pointer from the cq/qp_table to the diff --git a/drivers/infiniband/hw/mthca/mthca_qp.c b/drivers/infiniband/hw/mthca/mthca_qp.c index 157b4f8ac407..2e8f6f36e0a5 100644 --- a/drivers/infiniband/hw/mthca/mthca_qp.c +++ b/drivers/infiniband/hw/mthca/mthca_qp.c @@ -1263,6 +1263,32 @@ int mthca_alloc_qp(struct mthca_dev *dev, return 0; } +static void mthca_lock_cqs(struct mthca_cq *send_cq, struct mthca_cq *recv_cq) +{ + if (send_cq == recv_cq) + spin_lock_irq(&send_cq->lock); + else if (send_cq->cqn < recv_cq->cqn) { + spin_lock_irq(&send_cq->lock); + spin_lock_nested(&recv_cq->lock, SINGLE_DEPTH_NESTING); + } else { + spin_lock_irq(&recv_cq->lock); + spin_lock_nested(&send_cq->lock, SINGLE_DEPTH_NESTING); + } +} + +static void mthca_unlock_cqs(struct mthca_cq *send_cq, struct mthca_cq *recv_cq) +{ + if (send_cq == recv_cq) + spin_unlock_irq(&send_cq->lock); + else if (send_cq->cqn < recv_cq->cqn) { + spin_unlock(&recv_cq->lock); + spin_unlock_irq(&send_cq->lock); + } else { + spin_unlock(&send_cq->lock); + spin_unlock_irq(&recv_cq->lock); + } +} + int mthca_alloc_sqp(struct mthca_dev *dev, struct mthca_pd *pd, struct mthca_cq *send_cq, @@ -1315,17 +1341,13 @@ int mthca_alloc_sqp(struct mthca_dev *dev, * Lock CQs here, so that CQ polling code can do QP lookup * without taking a lock. */ - spin_lock_irq(&send_cq->lock); - if (send_cq != recv_cq) - spin_lock(&recv_cq->lock); + mthca_lock_cqs(send_cq, recv_cq); spin_lock(&dev->qp_table.lock); mthca_array_clear(&dev->qp_table.qp, mqpn); spin_unlock(&dev->qp_table.lock); - if (send_cq != recv_cq) - spin_unlock(&recv_cq->lock); - spin_unlock_irq(&send_cq->lock); + mthca_unlock_cqs(send_cq, recv_cq); err_out: dma_free_coherent(&dev->pdev->dev, sqp->header_buf_size, @@ -1359,9 +1381,7 @@ void mthca_free_qp(struct mthca_dev *dev, * Lock CQs here, so that CQ polling code can do QP lookup * without taking a lock. */ - spin_lock_irq(&send_cq->lock); - if (send_cq != recv_cq) - spin_lock(&recv_cq->lock); + mthca_lock_cqs(send_cq, recv_cq); spin_lock(&dev->qp_table.lock); mthca_array_clear(&dev->qp_table.qp, @@ -1369,9 +1389,7 @@ void mthca_free_qp(struct mthca_dev *dev, --qp->refcount; spin_unlock(&dev->qp_table.lock); - if (send_cq != recv_cq) - spin_unlock(&recv_cq->lock); - spin_unlock_irq(&send_cq->lock); + mthca_unlock_cqs(send_cq, recv_cq); wait_event(qp->wait, !get_qp_refcount(dev, qp)); From 0ee6a17389ceef65f1a86c38872fa98f08489022 Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Fri, 11 Aug 2006 08:30:31 +0200 Subject: [PATCH 111/488] ACPI: fix kfree in i2c_ec error path Signed-off-by: Jean Delvare Signed-off-by: Len Brown --- drivers/acpi/i2c_ec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/acpi/i2c_ec.c b/drivers/acpi/i2c_ec.c index 84239d51dc0c..6809c283ec58 100644 --- a/drivers/acpi/i2c_ec.c +++ b/drivers/acpi/i2c_ec.c @@ -330,7 +330,7 @@ static int acpi_ec_hc_add(struct acpi_device *device) status = acpi_evaluate_integer(ec_hc->handle, "_EC", NULL, &val); if (ACPI_FAILURE(status)) { ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Error obtaining _EC\n")); - kfree(ec_hc->smbus); + kfree(ec_hc); kfree(smbus); return -EIO; } From 4ca8a3c1b17cde8241eb9157484519427fa5bf91 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Thu, 3 Aug 2006 12:28:11 -0400 Subject: [PATCH 112/488] Add stable branch to maintainers file While helping someone to submit a patch to the stable branch, I noticed that the stable branch is not listed in the MAINTAINERS file. This was after I went there to look for the email addresses for the stable branch list (stable@kernel.org). This patch adds the stable branch to the maintainers file so that people can find where to send patches when they have a fix for the stable team. Signed-off-by: Steven Rostedt Signed-off-by: Chris Wright Signed-off-by: Greg Kroah-Hartman --- MAINTAINERS | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index e3e1515ba5a9..21116cc3b4a5 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2656,6 +2656,14 @@ M: chrisw@sous-sol.org L: stable@kernel.org S: Maintained +STABLE BRANCH: +P: Greg Kroah-Hartman +M: greg@kroah.com +P: Chris Wright +M: chrisw@sous-sol.org +L: stable@kernel.org +S: Maintained + TPM DEVICE DRIVER P: Kylene Hall M: kjhall@us.ibm.com From e9539ee73a9b85bdc6eab9e15dd1ee639a815406 Mon Sep 17 00:00:00 2001 From: Brandon Philips Date: Tue, 1 Aug 2006 14:04:17 -0500 Subject: [PATCH 113/488] genhd.c reference in Documentation/kobjects.txt block/genhd.c no longer in drivers/. Update Documentation/kobjects.txt Signed-off-by: Brandon Philips Signed-off-by: Greg Kroah-Hartman --- Documentation/kobject.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Documentation/kobject.txt b/Documentation/kobject.txt index 8d9bffbd192c..949f7b5a2053 100644 --- a/Documentation/kobject.txt +++ b/Documentation/kobject.txt @@ -247,7 +247,7 @@ the object-specific fields, which include: - default_attrs: Default attributes to be exported via sysfs when the object is registered.Note that the last attribute has to be initialized to NULL ! You can find a complete implementation - in drivers/block/genhd.c + in block/genhd.c Instances of struct kobj_type are not registered; only referenced by From 1cc6daf2349ea07830906e05164256ab36d82697 Mon Sep 17 00:00:00 2001 From: Pavel Machek Date: Tue, 8 Aug 2006 01:37:15 +0200 Subject: [PATCH 114/488] pr_debug() should not be used in drivers pr_debug() should not be used from drivers, add comment saying that. Signed-off-by: Pavel Machek Signed-off-by: Greg Kroah-Hartman --- include/linux/kernel.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 181c69cad4e3..851aa1bcfc1a 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -210,6 +210,7 @@ extern enum system_states { extern void dump_stack(void); #ifdef DEBUG +/* If you are writing a driver, please use dev_dbg instead */ #define pr_debug(fmt,arg...) \ printk(KERN_DEBUG fmt,##arg) #else From e50d1088bf2e5a68068c5f602be1dcc3e52dc873 Mon Sep 17 00:00:00 2001 From: Kristen Carlson Accardi Date: Tue, 8 Aug 2006 09:44:26 -0400 Subject: [PATCH 115/488] pciehp: make pciehp build for powerpc Make pciehp build on powerpc Signed-off-by: Kristen Carlson Accardi Acked-by: Randy Dunlap Signed-off-by: Greg Kroah-Hartman --- drivers/pci/hotplug/pciehp.h | 5 +++++ drivers/pci/hotplug/pciehp_hpc.c | 4 ---- 2 files changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h index ce89f5815861..eaea9d36a1bb 100644 --- a/drivers/pci/hotplug/pciehp.h +++ b/drivers/pci/hotplug/pciehp.h @@ -279,6 +279,11 @@ struct hpc_ops { #ifdef CONFIG_ACPI +#include +#include +#include +#include + #define pciehp_get_hp_hw_control_from_firmware(dev) \ pciehp_acpi_get_hp_hw_control_from_firmware(dev) static inline int pciehp_get_hp_params_from_firmware(struct pci_dev *dev, diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c index 0d8fb6e607a1..6ab3b6cd2b54 100644 --- a/drivers/pci/hotplug/pciehp_hpc.c +++ b/drivers/pci/hotplug/pciehp_hpc.c @@ -38,10 +38,6 @@ #include "../pci.h" #include "pciehp.h" -#include -#include -#include -#include #ifdef DEBUG #define DBG_K_TRACE_ENTRY ((unsigned int)0x00000001) /* On function entry */ #define DBG_K_TRACE_EXIT ((unsigned int)0x00000002) /* On function exit */ From f0c1dc07309f0fe3409b92eb170b648a487b1e81 Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Wed, 9 Aug 2006 15:25:09 -0400 Subject: [PATCH 116/488] PCI: remove dead HOTPLUG_PCI_SHPC_PHPRM_LEGACY option. Nothing in the tree references this config option. Signed-off-by: Dave Jones Signed-off-by: Greg Kroah-Hartman --- drivers/pci/hotplug/Kconfig | 7 ------- 1 file changed, 7 deletions(-) diff --git a/drivers/pci/hotplug/Kconfig b/drivers/pci/hotplug/Kconfig index 3fae77ffb2fa..3c148eaf2f4d 100644 --- a/drivers/pci/hotplug/Kconfig +++ b/drivers/pci/hotplug/Kconfig @@ -153,13 +153,6 @@ config HOTPLUG_PCI_SHPC_POLL_EVENT_MODE When in doubt, say N. -config HOTPLUG_PCI_SHPC_PHPRM_LEGACY - bool "For AMD SHPC only: Use $HRT for resource/configuration" - depends on HOTPLUG_PCI_SHPC && !ACPI - help - Say Y here for AMD SHPC. You have to select this option if you are - using this driver on platform with AMD SHPC. - config HOTPLUG_PCI_RPA tristate "RPA PCI Hotplug driver" depends on HOTPLUG_PCI && PPC_PSERIES && PPC64 && !HOTPLUG_PCI_FAKE From b41ee5d62211825cbe5e583cafc2255c91385aee Mon Sep 17 00:00:00 2001 From: David Kuehling Date: Mon, 7 Aug 2006 10:18:48 -0400 Subject: [PATCH 117/488] USB: unusual_devs entry for A-VOX WSX-300ER MP3 player This patch (as763) adds an unusual_devs entry for the A-VOX WSX-300ER MP3 player. From: David Kuehling Signed-off-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- drivers/usb/storage/unusual_devs.h | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h index 2793f9a912b4..fd158e063c06 100644 --- a/drivers/usb/storage/unusual_devs.h +++ b/drivers/usb/storage/unusual_devs.h @@ -1240,6 +1240,16 @@ UNUSUAL_DEV( 0x0ed1, 0x7636, 0x0103, 0x0103, US_SC_DEVICE, US_PR_DEVICE, NULL, US_FL_IGNORE_RESIDUE | US_FL_GO_SLOW | US_FL_MAX_SECTORS_64), +/* David Kuehling : + * for MP3-Player AVOX WSX-300ER (bought in Japan). Reports lots of SCSI + * errors when trying to write. + */ +UNUSUAL_DEV( 0x0f19, 0x0105, 0x0100, 0x0100, + "C-MEX", + "A-VOX", + US_SC_DEVICE, US_PR_DEVICE, NULL, + US_FL_IGNORE_RESIDUE ), + /* Reported by Michael Stattmann */ UNUSUAL_DEV( 0x0fce, 0xd008, 0x0000, 0x0000, "Sony Ericsson", From 919aeadcfa8e72ec2d6bf7bd405a16c40b8d8ecf Mon Sep 17 00:00:00 2001 From: Yoichi Yuasa Date: Thu, 3 Aug 2006 09:54:24 +0900 Subject: [PATCH 118/488] USB: removed a unbalanced #endif from ohci-au1xxx.c This patch has removed a unbalanced #endif from ohci-au1xxx.c . Please apply before 2.6.18 release. Error message was: In file included from drivers/usb/host/ohci-hcd.c:909: drivers/usb/host/ohci-au1xxx.c:113:2: #endif without #if Signed-off-by: Yoichi Yuasa Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/ohci-au1xxx.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/usb/host/ohci-au1xxx.c b/drivers/usb/host/ohci-au1xxx.c index 822914e2f43b..f7a975d5db09 100644 --- a/drivers/usb/host/ohci-au1xxx.c +++ b/drivers/usb/host/ohci-au1xxx.c @@ -110,7 +110,6 @@ static void au1xxx_start_ohc(struct platform_device *dev) printk(KERN_DEBUG __FILE__ ": Clock to USB host has been enabled \n"); -#endif } static void au1xxx_stop_ohc(struct platform_device *dev) From 7af569abc33ce09d3cb93e9b2160efff2531c59f Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Wed, 19 Jul 2006 15:39:46 +0200 Subject: [PATCH 119/488] USB: appletouch: fix atp_disconnect appletouch uses urb->transfer_dma after having freed the urb, this shows up only if the system is compiled with slab debugging. This patch fixes it by reordering the free calls. Signed-off-by: Johannes Berg Signed-off-by: Vojtech Pavlik Signed-off-by: Greg Kroah-Hartman --- drivers/usb/input/appletouch.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/input/appletouch.c b/drivers/usb/input/appletouch.c index 9e3f13903371..044faa07e297 100644 --- a/drivers/usb/input/appletouch.c +++ b/drivers/usb/input/appletouch.c @@ -597,9 +597,9 @@ static void atp_disconnect(struct usb_interface *iface) if (dev) { usb_kill_urb(dev->urb); input_unregister_device(dev->input); - usb_free_urb(dev->urb); usb_buffer_free(dev->udev, dev->datalen, dev->data, dev->urb->transfer_dma); + usb_free_urb(dev->urb); kfree(dev); } printk(KERN_INFO "input: appletouch disconnected\n"); From 922fdaa692e23bf57a10c16047d993c181991579 Mon Sep 17 00:00:00 2001 From: Norihiko Tomiyama Date: Tue, 8 Aug 2006 14:31:25 +0900 Subject: [PATCH 120/488] USB: Additional PID for SHARP W-ZERO3 I write a patch for ipaq.c. Would you like to add upstream tree ? This patch enables a support of "SHARP W-ZERO3(WS004SH)" and "SHARP W-ZERO3[es](WS007SH)". From: Norihiko Tomiyama Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/ipaq.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/usb/serial/ipaq.c b/drivers/usb/serial/ipaq.c index 7e1bd5d6dfa0..9840bade79f9 100644 --- a/drivers/usb/serial/ipaq.c +++ b/drivers/usb/serial/ipaq.c @@ -251,6 +251,8 @@ static struct usb_device_id ipaq_id_table [] = { { USB_DEVICE(0x04C5, 0x1079) }, /* FUJITSU USB Sync */ { USB_DEVICE(0x04DA, 0x2500) }, /* Panasonic USB Sync */ { USB_DEVICE(0x04DD, 0x9102) }, /* SHARP WS003SH USB Modem */ + { USB_DEVICE(0x04DD, 0x9121) }, /* SHARP WS004SH USB Modem */ + { USB_DEVICE(0x04DD, 0x9123) }, /* SHARP WS007SH USB Modem */ { USB_DEVICE(0x04E8, 0x5F00) }, /* Samsung NEXiO USB Sync */ { USB_DEVICE(0x04E8, 0x5F01) }, /* Samsung NEXiO USB Sync */ { USB_DEVICE(0x04E8, 0x5F02) }, /* Samsung NEXiO USB Sync */ From 2011e9249a252e0655807fbe6841f6cfe6b6c197 Mon Sep 17 00:00:00 2001 From: Jonathan Davies Date: Wed, 9 Aug 2006 10:48:03 +0100 Subject: [PATCH 121/488] USB: ftdi_sio driver - new PIDs Signed-off-by: Jonathan Davies Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/ftdi_sio.c | 2 ++ drivers/usb/serial/ftdi_sio.h | 6 ++++++ 2 files changed, 8 insertions(+) diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index a20da8528a5f..15945e806f03 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -306,6 +306,8 @@ static struct ftdi_sio_quirk ftdi_HE_TIRA1_quirk = { static struct usb_device_id id_table_combined [] = { + { USB_DEVICE(FTDI_VID, FTDI_AMC232_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_CANUSB_PID) }, { USB_DEVICE(FTDI_VID, FTDI_ACTZWAVE_PID) }, { USB_DEVICE(FTDI_VID, FTDI_IRTRANS_PID) }, { USB_DEVICE(FTDI_VID, FTDI_IPLUS_PID) }, diff --git a/drivers/usb/serial/ftdi_sio.h b/drivers/usb/serial/ftdi_sio.h index 9f7343a45424..8888cd80a491 100644 --- a/drivers/usb/serial/ftdi_sio.h +++ b/drivers/usb/serial/ftdi_sio.h @@ -32,6 +32,12 @@ #define FTDI_NF_RIC_PID 0x0001 /* Product Id */ +/* www.canusb.com Lawicel CANUSB device */ +#define FTDI_CANUSB_PID 0xFFA8 /* Product Id */ + +/* AlphaMicro Components AMC-232USB01 device */ +#define FTDI_AMC232_PID 0xFF00 /* Product Id */ + /* ACT Solutions HomePro ZWave interface (http://www.act-solutions.com/HomePro.htm) */ #define FTDI_ACTZWAVE_PID 0xF2D0 From f54fa84dda211f68f65002efa44142207c886c79 Mon Sep 17 00:00:00 2001 From: Orjan Friberg Date: Tue, 8 Aug 2006 23:31:40 -0700 Subject: [PATCH 122/488] USB: usbtest.c: unsigned retval makes ctrl_out return 0 in case of error In my quest to try and figure out why test 14 (control write) doesn't work with my EZ-USB board, I noticed that sometimes testusb reported no error even though the kernel log complained "byte 0 is 0 not 2" etc. Signed-off-by: David Brownell Signed-off-by: Greg Kroah-Hartman --- drivers/usb/misc/usbtest.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c index 786e1dbe88ec..983e104dd452 100644 --- a/drivers/usb/misc/usbtest.c +++ b/drivers/usb/misc/usbtest.c @@ -1242,11 +1242,12 @@ done: static int ctrl_out (struct usbtest_dev *dev, unsigned count, unsigned length, unsigned vary) { - unsigned i, j, len, retval; + unsigned i, j, len; + int retval; u8 *buf; char *what = "?"; struct usb_device *udev; - + if (length < 1 || length > 0xffff || vary >= length) return -EINVAL; From 3a5ff61c18659443f76bad6cf06f60103046de5d Mon Sep 17 00:00:00 2001 From: Steve French Date: Fri, 14 Jul 2006 22:37:11 +0000 Subject: [PATCH 123/488] [CIFS] Do not time out posix brl requests when using new posix setfileinfo request and do not time out slow requests to a server that is still responding well to other threads Suggested by jra of Samba team Signed-off-by: Steve French (cherry picked from 89b57148115479eef074b8d3f86c4c86c96ac969 commit) --- fs/cifs/CHANGES | 6 ++++++ fs/cifs/cifsfs.c | 6 +----- fs/cifs/cifsfs.h | 2 +- fs/cifs/cifsglob.h | 3 ++- fs/cifs/cifssmb.c | 11 ++++++++--- fs/cifs/connect.c | 17 ++++++++++++++++- fs/cifs/file.c | 6 ++---- fs/cifs/transport.c | 16 +++++++++++++--- 8 files changed, 49 insertions(+), 18 deletions(-) diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES index a61d17ed1827..acb843b9bc3b 100644 --- a/fs/cifs/CHANGES +++ b/fs/cifs/CHANGES @@ -1,3 +1,9 @@ +Version 1.45 +------------ +Do not time out lockw calls when using posix extensions. Do not +time out requests if server still responding reasonably fast +on requests on other threads + Version 1.44 ------------ Rewritten sessionsetup support, including support for legacy SMB diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index c28ede599946..3cd750029be2 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -402,7 +402,6 @@ static struct quotactl_ops cifs_quotactl_ops = { }; #endif -#ifdef CONFIG_CIFS_EXPERIMENTAL static void cifs_umount_begin(struct vfsmount * vfsmnt, int flags) { struct cifs_sb_info *cifs_sb; @@ -422,7 +421,7 @@ static void cifs_umount_begin(struct vfsmount * vfsmnt, int flags) tcon->tidStatus = CifsExiting; up(&tcon->tconSem); - /* cancel_brl_requests(tcon); */ + /* cancel_brl_requests(tcon); */ /* BB mark all brl mids as exiting */ /* cancel_notify_requests(tcon); */ if(tcon->ses && tcon->ses->server) { @@ -438,7 +437,6 @@ static void cifs_umount_begin(struct vfsmount * vfsmnt, int flags) return; } -#endif static int cifs_remount(struct super_block *sb, int *flags, char *data) { @@ -457,9 +455,7 @@ struct super_operations cifs_super_ops = { unless later we add lazy close of inodes or unless the kernel forgets to call us with the same number of releases (closes) as opens */ .show_options = cifs_show_options, -#ifdef CONFIG_CIFS_EXPERIMENTAL .umount_begin = cifs_umount_begin, -#endif .remount_fs = cifs_remount, }; diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h index 8f75c6f24701..39ee8ef3bdeb 100644 --- a/fs/cifs/cifsfs.h +++ b/fs/cifs/cifsfs.h @@ -100,5 +100,5 @@ extern ssize_t cifs_getxattr(struct dentry *, const char *, void *, size_t); extern ssize_t cifs_listxattr(struct dentry *, char *, size_t); extern int cifs_ioctl (struct inode * inode, struct file * filep, unsigned int command, unsigned long arg); -#define CIFS_VERSION "1.44" +#define CIFS_VERSION "1.45" #endif /* _CIFSFS_H */ diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index 6d7cf5f3bc0b..39b43e6a7509 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -158,7 +158,8 @@ struct TCP_Server_Info { /* 16th byte of RFC1001 workstation name is always null */ char workstation_RFC1001_name[SERVER_NAME_LEN_WITH_NULL]; __u32 sequence_number; /* needed for CIFS PDU signature */ - char mac_signing_key[CIFS_SESS_KEY_SIZE + 16]; + char mac_signing_key[CIFS_SESS_KEY_SIZE + 16]; + unsigned long lstrp; /* when we got last response from this server */ }; /* diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index 19678c575dfc..c03c42ee9eb9 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -1484,6 +1484,7 @@ CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon, char *data_offset; struct cifs_posix_lock *parm_data; int rc = 0; + int timeout = 0; int bytes_returned = 0; __u16 params, param_offset, offset, byte_count, count; @@ -1503,7 +1504,6 @@ CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon, pSMB->MaxSetupCount = 0; pSMB->Reserved = 0; pSMB->Flags = 0; - pSMB->Timeout = 0; pSMB->Reserved2 = 0; param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; offset = param_offset + params; @@ -1529,8 +1529,13 @@ CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon, (((char *) &pSMB->hdr.Protocol) + offset); parm_data->lock_type = cpu_to_le16(lock_type); - if(waitFlag) + if(waitFlag) { + timeout = 3; /* blocking operation, no timeout */ parm_data->lock_flags = cpu_to_le16(1); + pSMB->Timeout = cpu_to_le32(-1); + } else + pSMB->Timeout = 0; + parm_data->pid = cpu_to_le32(current->tgid); parm_data->start = cpu_to_le64(pLockData->fl_start); parm_data->length = cpu_to_le64(len); /* normalize negative numbers */ @@ -1542,7 +1547,7 @@ CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon, pSMB->hdr.smb_buf_length += byte_count; pSMB->ByteCount = cpu_to_le16(byte_count); rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, - (struct smb_hdr *) pSMBr, &bytes_returned, 0); + (struct smb_hdr *) pSMBr, &bytes_returned, timeout); if (rc) { cFYI(1, ("Send error in Posix Lock = %d", rc)); } else if (get_flag) { diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 876eb9ef85fe..c4aedcf5c924 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -612,6 +612,10 @@ multi_t2_fnd: #ifdef CONFIG_CIFS_STATS2 mid_entry->when_received = jiffies; #endif + /* so we do not time out requests to server + which is still responding (since server could + be busy but not dead) */ + server->lstrp = jiffies; break; } } @@ -1969,7 +1973,18 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, } cFYI(1,("Negotiate caps 0x%x",(int)cap)); - +#ifdef CONFIG_CIFS_DEBUG2 + if(cap & CIFS_UNIX_FCNTL_CAP) + cFYI(1,("FCNTL cap")); + if(cap & CIFS_UNIX_EXTATTR_CAP) + cFYI(1,("EXTATTR cap")); + if(cap & CIFS_UNIX_POSIX_PATHNAMES_CAP) + cFYI(1,("POSIX path cap")); + if(cap & CIFS_UNIX_XATTR_CAP) + cFYI(1,("XATTR cap")); + if(cap & CIFS_UNIX_POSIX_ACL_CAP) + cFYI(1,("POSIX ACL cap")); +#endif /* CIFS_DEBUG2 */ if (CIFSSMBSetFSUnixInfo(xid, tcon, cap)) { cFYI(1,("setting capabilities failed")); } diff --git a/fs/cifs/file.c b/fs/cifs/file.c index 944d2b9e092d..52e2e4c8794b 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -644,8 +644,7 @@ int cifs_lock(struct file *file, int cmd, struct file_lock *pfLock) account for negative length which we can not accept over the wire */ if (IS_GETLK(cmd)) { - if(experimEnabled && - (cifs_sb->tcon->ses->capabilities & CAP_UNIX) && + if((cifs_sb->tcon->ses->capabilities & CAP_UNIX) && (CIFS_UNIX_FCNTL_CAP & le64_to_cpu(cifs_sb->tcon->fsUnixInfo.Capability))) { int posix_lock_type; @@ -683,8 +682,7 @@ int cifs_lock(struct file *file, int cmd, struct file_lock *pfLock) FreeXid(xid); return rc; } - if (experimEnabled && - (cifs_sb->tcon->ses->capabilities & CAP_UNIX) && + if ((cifs_sb->tcon->ses->capabilities & CAP_UNIX) && (CIFS_UNIX_FCNTL_CAP & le64_to_cpu(cifs_sb->tcon->fsUnixInfo.Capability))) { int posix_lock_type; diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c index 17ba329e2b3d..95e23ca670a8 100644 --- a/fs/cifs/transport.c +++ b/fs/cifs/transport.c @@ -444,8 +444,9 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses, if(timeout != MAX_SCHEDULE_TIMEOUT) { timeout += jiffies; wait_event(ses->server->response_q, - (!(midQ->midState & MID_REQUEST_SUBMITTED)) || - time_after(jiffies, timeout) || + (!(midQ->midState & MID_REQUEST_SUBMITTED)) || + (time_after(jiffies, timeout) && + time_after(jiffies, ses->server->lstrp + HZ)) || ((ses->server->tcpStatus != CifsGood) && (ses->server->tcpStatus != CifsNew))); } else { @@ -710,9 +711,18 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses, /* No user interrupts in wait - wreaks havoc with performance */ if(timeout != MAX_SCHEDULE_TIMEOUT) { timeout += jiffies; + /* although we prefer not to time out if the server is still + responding - we will time out if the server takes + more than 15 (or 45 or 180) seconds to respond to this request + and has not responded to any request from other threads + on this client within a second (note that it is not worth + grabbing the GlobalMid_Lock and slowing things down in this + wait event to more accurately check the lstrsp field on some + arch since we are already in an error path that will retry */ wait_event(ses->server->response_q, (!(midQ->midState & MID_REQUEST_SUBMITTED)) || - time_after(jiffies, timeout) || + (time_after(jiffies, timeout) && + time_after(jiffies, ses->server->lstrp + HZ)) || ((ses->server->tcpStatus != CifsGood) && (ses->server->tcpStatus != CifsNew))); } else { From 14a441a2b4ee1dfc00ec822d91d9fb20f401c62f Mon Sep 17 00:00:00 2001 From: Steve French Date: Sun, 16 Jul 2006 04:32:51 +0000 Subject: [PATCH 124/488] [CIFS] spinlock protect read of last srv response time in timeout path Signed-off-by: Jeremy Allison Signed-off-by: Steve French (cherry picked from b33a3f55e54fd210fc043eafcf83728b03bc9e02 commit) --- fs/cifs/transport.c | 99 ++++++++++++++++++++++++++++++++++----------- 1 file changed, 76 insertions(+), 23 deletions(-) diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c index 95e23ca670a8..d16e6032d4cf 100644 --- a/fs/cifs/transport.c +++ b/fs/cifs/transport.c @@ -3,7 +3,8 @@ * * Copyright (C) International Business Machines Corp., 2002,2005 * Author(s): Steve French (sfrench@us.ibm.com) - * + * Jeremy Allison (jra@samba.org) 2006. + * * This library is free software; you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published * by the Free Software Foundation; either version 2.1 of the License, or @@ -442,13 +443,46 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses, /* No user interrupts in wait - wreaks havoc with performance */ if(timeout != MAX_SCHEDULE_TIMEOUT) { - timeout += jiffies; - wait_event(ses->server->response_q, - (!(midQ->midState & MID_REQUEST_SUBMITTED)) || - (time_after(jiffies, timeout) && - time_after(jiffies, ses->server->lstrp + HZ)) || - ((ses->server->tcpStatus != CifsGood) && - (ses->server->tcpStatus != CifsNew))); + unsigned long curr_timeout; + + for (;;) { + curr_timeout = timeout + jiffies; + wait_event(ses->server->response_q, + (!(midQ->midState & MID_REQUEST_SUBMITTED)) || + time_after(jiffies, curr_timeout) || + ((ses->server->tcpStatus != CifsGood) && + (ses->server->tcpStatus != CifsNew))); + + if (time_after(jiffies, curr_timeout) && + (midQ->midState & MID_REQUEST_SUBMITTED) && + ((ses->server->tcpStatus == CifsGood) || + (ses->server->tcpStatus == CifsNew))) { + + unsigned long lrt; + + /* We timed out. Is the server still + sending replies ? */ + spin_lock(&GlobalMid_Lock); + lrt = ses->server->lstrp; + spin_unlock(&GlobalMid_Lock); + + /* Calculate 10 seconds past last receive time. + Although we prefer not to time out if the + server is still responding - we will time + out if the server takes more than 15 (or 45 + or 180) seconds to respond to this request + and has not responded to any request from + other threads on the client within 10 seconds */ + lrt += (10 * HZ); + if (time_after(jiffies, lrt)) { + /* No replies for 10 seconds. */ + cERROR(1,("server not responding")); + break; + } + } else { + break; + } + } } else { wait_event(ses->server->response_q, (!(midQ->midState & MID_REQUEST_SUBMITTED)) || @@ -710,21 +744,40 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses, /* No user interrupts in wait - wreaks havoc with performance */ if(timeout != MAX_SCHEDULE_TIMEOUT) { - timeout += jiffies; - /* although we prefer not to time out if the server is still - responding - we will time out if the server takes - more than 15 (or 45 or 180) seconds to respond to this request - and has not responded to any request from other threads - on this client within a second (note that it is not worth - grabbing the GlobalMid_Lock and slowing things down in this - wait event to more accurately check the lstrsp field on some - arch since we are already in an error path that will retry */ - wait_event(ses->server->response_q, - (!(midQ->midState & MID_REQUEST_SUBMITTED)) || - (time_after(jiffies, timeout) && - time_after(jiffies, ses->server->lstrp + HZ)) || - ((ses->server->tcpStatus != CifsGood) && - (ses->server->tcpStatus != CifsNew))); + unsigned long curr_timeout; + + for (;;) { + curr_timeout = timeout + jiffies; + wait_event(ses->server->response_q, + (!(midQ->midState & MID_REQUEST_SUBMITTED)) || + time_after(jiffies, curr_timeout) || + ((ses->server->tcpStatus != CifsGood) && + (ses->server->tcpStatus != CifsNew))); + + if (time_after(jiffies, curr_timeout) && + (midQ->midState & MID_REQUEST_SUBMITTED) && + ((ses->server->tcpStatus == CifsGood) || + (ses->server->tcpStatus == CifsNew))) { + + unsigned long lrt; + + /* We timed out. Is the server still + sending replies ? */ + spin_lock(&GlobalMid_Lock); + lrt = ses->server->lstrp; + spin_unlock(&GlobalMid_Lock); + + /* Calculate 10 seconds past last receive time*/ + lrt += (10 * HZ); + if (time_after(jiffies, lrt)) { + /* Server sent no reply in 10 seconds */ + cERROR(1,("Server not responding")); + break; + } + } else { + break; + } + } } else { wait_event(ses->server->response_q, (!(midQ->midState & MID_REQUEST_SUBMITTED)) || From 5da07b0208066fd3544ecf2b521fc7a2e0228ad5 Mon Sep 17 00:00:00 2001 From: Steve French Date: Sun, 16 Jul 2006 21:33:15 +0000 Subject: [PATCH 125/488] [CIFS] Make midState usage more consistent Although harmless, we were sometimes treating midState like it contained flags but they are exclusive states, and this makes that more clear. Signed-off-by: Jeremy Allison Signed-off-by: Steve French (cherry picked from 586c057c3a68dd6ae0f3ba94fbf76798b1558074 commit) --- fs/cifs/transport.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c index d16e6032d4cf..748b0df07a73 100644 --- a/fs/cifs/transport.c +++ b/fs/cifs/transport.c @@ -448,13 +448,13 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses, for (;;) { curr_timeout = timeout + jiffies; wait_event(ses->server->response_q, - (!(midQ->midState & MID_REQUEST_SUBMITTED)) || + (!(midQ->midState == MID_REQUEST_SUBMITTED)) || time_after(jiffies, curr_timeout) || ((ses->server->tcpStatus != CifsGood) && (ses->server->tcpStatus != CifsNew))); if (time_after(jiffies, curr_timeout) && - (midQ->midState & MID_REQUEST_SUBMITTED) && + (midQ->midState == MID_REQUEST_SUBMITTED) && ((ses->server->tcpStatus == CifsGood) || (ses->server->tcpStatus == CifsNew))) { @@ -485,7 +485,7 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses, } } else { wait_event(ses->server->response_q, - (!(midQ->midState & MID_REQUEST_SUBMITTED)) || + (!(midQ->midState == MID_REQUEST_SUBMITTED)) || ((ses->server->tcpStatus != CifsGood) && (ses->server->tcpStatus != CifsNew))); } @@ -749,13 +749,13 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses, for (;;) { curr_timeout = timeout + jiffies; wait_event(ses->server->response_q, - (!(midQ->midState & MID_REQUEST_SUBMITTED)) || + (!(midQ->midState == MID_REQUEST_SUBMITTED)) || time_after(jiffies, curr_timeout) || ((ses->server->tcpStatus != CifsGood) && (ses->server->tcpStatus != CifsNew))); if (time_after(jiffies, curr_timeout) && - (midQ->midState & MID_REQUEST_SUBMITTED) && + (midQ->midState == MID_REQUEST_SUBMITTED) && ((ses->server->tcpStatus == CifsGood) || (ses->server->tcpStatus == CifsNew))) { @@ -780,7 +780,7 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses, } } else { wait_event(ses->server->response_q, - (!(midQ->midState & MID_REQUEST_SUBMITTED)) || + (!(midQ->midState == MID_REQUEST_SUBMITTED)) || ((ses->server->tcpStatus != CifsGood) && (ses->server->tcpStatus != CifsNew))); } From 6c3d8909d85b2c18fd7a6e64f0ca757a257b40fa Mon Sep 17 00:00:00 2001 From: Steve French Date: Mon, 31 Jul 2006 22:46:20 +0000 Subject: [PATCH 126/488] [CIFS] Allow cifsd to suspend if connection is lost Make cifsd allow us to suspend if it has lost the connection with a server Ref: http://bugzilla.kernel.org/show_bug.cgi?id=6811 Signed-off-by: Rafael J. Wysocki Acked-by: Pavel Machek Signed-off-by: Steve French (cherry picked from 27bd6cd87b0ada66515ad49bc346d77d1e9d3e05 commit) --- fs/cifs/connect.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index c4aedcf5c924..b706b4f48b10 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -182,6 +182,7 @@ cifs_reconnect(struct TCP_Server_Info *server) while ((server->tcpStatus != CifsExiting) && (server->tcpStatus != CifsGood)) { + try_to_freeze(); if(server->protocolType == IPV6) { rc = ipv6_connect(&server->addr.sockAddr6,&server->ssocket); } else { From 7ee1af765dfa3146aef958258003245e082284e5 Mon Sep 17 00:00:00 2001 From: Jeremy Allison Date: Wed, 2 Aug 2006 21:56:33 +0000 Subject: [PATCH 127/488] [CIFS] Allow Windows blocking locks to be cancelled via a CANCEL_LOCK call. TODO - restrict this to servers that support NT_STATUS codes (Win9x will probably not support this call). Signed-off-by: Jeremy Allison Signed-off-by: Steve French (cherry picked from 570d4d2d895569825d0d017d4e76b51138f68864 commit) --- fs/cifs/cifsglob.h | 15 +- fs/cifs/cifsproto.h | 4 + fs/cifs/cifssmb.c | 15 +- fs/cifs/file.c | 95 +++++- fs/cifs/netmisc.c | 1 + fs/cifs/smberr.h | 1 + fs/cifs/transport.c | 709 ++++++++++++++++++++++++++------------------ 7 files changed, 528 insertions(+), 312 deletions(-) diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index 39b43e6a7509..b24006c47df1 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -3,6 +3,7 @@ * * Copyright (C) International Business Machines Corp., 2002,2006 * Author(s): Steve French (sfrench@us.ibm.com) + * Jeremy Allison (jra@samba.org) * * This library is free software; you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published @@ -267,14 +268,14 @@ struct cifsTconInfo { }; /* - * This info hangs off the cifsFileInfo structure. This is used to track - * byte stream locks on the file + * This info hangs off the cifsFileInfo structure, pointed to by llist. + * This is used to track byte stream locks on the file */ struct cifsLockInfo { - struct cifsLockInfo *next; - int start; - int length; - int type; + struct list_head llist; /* pointer to next cifsLockInfo */ + __u64 offset; + __u64 length; + __u8 type; }; /* @@ -305,6 +306,8 @@ struct cifsFileInfo { /* lock scope id (0 if none) */ struct file * pfile; /* needed for writepage */ struct inode * pInode; /* needed for oplock break */ + struct semaphore lock_sem; + struct list_head llist; /* list of byte range locks we have. */ unsigned closePend:1; /* file is marked to close */ unsigned invalidHandle:1; /* file closed via session abend */ atomic_t wrtPending; /* handle in use - defer close */ diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h index a5ddc62d6fe6..b35c55c3c8bb 100644 --- a/fs/cifs/cifsproto.h +++ b/fs/cifs/cifsproto.h @@ -50,6 +50,10 @@ extern int SendReceive(const unsigned int /* xid */ , struct cifsSesInfo *, extern int SendReceive2(const unsigned int /* xid */ , struct cifsSesInfo *, struct kvec *, int /* nvec to send */, int * /* type of buf returned */ , const int long_op); +extern int SendReceiveBlockingLock(const unsigned int /* xid */ , struct cifsTconInfo *, + struct smb_hdr * /* input */ , + struct smb_hdr * /* out */ , + int * /* bytes returned */); extern int checkSMBhdr(struct smb_hdr *smb, __u16 mid); extern int checkSMB(struct smb_hdr *smb, __u16 mid, int length); extern int is_valid_oplock_break(struct smb_hdr *smb, struct TCP_Server_Info *); diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index c03c42ee9eb9..dcbc3e075e81 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -1460,8 +1460,13 @@ CIFSSMBLock(const int xid, struct cifsTconInfo *tcon, pSMB->hdr.smb_buf_length += count; pSMB->ByteCount = cpu_to_le16(count); - rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, + if (waitFlag) { + rc = SendReceiveBlockingLock(xid, tcon, (struct smb_hdr *) pSMB, + (struct smb_hdr *) pSMBr, &bytes_returned); + } else { + rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, timeout); + } cifs_stats_inc(&tcon->num_locks); if (rc) { cFYI(1, ("Send error in Lock = %d", rc)); @@ -1546,8 +1551,14 @@ CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon, pSMB->Reserved4 = 0; pSMB->hdr.smb_buf_length += byte_count; pSMB->ByteCount = cpu_to_le16(byte_count); - rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, + if (waitFlag) { + rc = SendReceiveBlockingLock(xid, tcon, (struct smb_hdr *) pSMB, + (struct smb_hdr *) pSMBr, &bytes_returned); + } else { + rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, timeout); + } + if (rc) { cFYI(1, ("Send error in Posix Lock = %d", rc)); } else if (get_flag) { diff --git a/fs/cifs/file.c b/fs/cifs/file.c index 52e2e4c8794b..e9c5ba9084fc 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -5,6 +5,7 @@ * * Copyright (C) International Business Machines Corp., 2002,2003 * Author(s): Steve French (sfrench@us.ibm.com) + * Jeremy Allison (jra@samba.org) * * This library is free software; you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published @@ -47,6 +48,8 @@ static inline struct cifsFileInfo *cifs_init_private( private_data->netfid = netfid; private_data->pid = current->tgid; init_MUTEX(&private_data->fh_sem); + init_MUTEX(&private_data->lock_sem); + INIT_LIST_HEAD(&private_data->llist); private_data->pfile = file; /* needed for writepage */ private_data->pInode = inode; private_data->invalidHandle = FALSE; @@ -473,6 +476,8 @@ int cifs_close(struct inode *inode, struct file *file) cifs_sb = CIFS_SB(inode->i_sb); pTcon = cifs_sb->tcon; if (pSMBFile) { + struct cifsLockInfo *li, *tmp; + pSMBFile->closePend = TRUE; if (pTcon) { /* no sense reconnecting to close a file that is @@ -496,6 +501,16 @@ int cifs_close(struct inode *inode, struct file *file) pSMBFile->netfid); } } + + /* Delete any outstanding lock records. + We'll lose them when the file is closed anyway. */ + down(&pSMBFile->lock_sem); + list_for_each_entry_safe(li, tmp, &pSMBFile->llist, llist) { + list_del(&li->llist); + kfree(li); + } + up(&pSMBFile->lock_sem); + write_lock(&GlobalSMBSeslock); list_del(&pSMBFile->flist); list_del(&pSMBFile->tlist); @@ -570,6 +585,21 @@ int cifs_closedir(struct inode *inode, struct file *file) return rc; } +static int store_file_lock(struct cifsFileInfo *fid, __u64 len, + __u64 offset, __u8 lockType) +{ + struct cifsLockInfo *li = kmalloc(sizeof(struct cifsLockInfo), GFP_KERNEL); + if (li == NULL) + return -ENOMEM; + li->offset = offset; + li->length = len; + li->type = lockType; + down(&fid->lock_sem); + list_add(&li->llist, &fid->llist); + up(&fid->lock_sem); + return 0; +} + int cifs_lock(struct file *file, int cmd, struct file_lock *pfLock) { int rc, xid; @@ -581,6 +611,7 @@ int cifs_lock(struct file *file, int cmd, struct file_lock *pfLock) struct cifsTconInfo *pTcon; __u16 netfid; __u8 lockType = LOCKING_ANDX_LARGE_FILES; + int posix_locking; length = 1 + pfLock->fl_end - pfLock->fl_start; rc = -EACCES; @@ -639,14 +670,14 @@ int cifs_lock(struct file *file, int cmd, struct file_lock *pfLock) } netfid = ((struct cifsFileInfo *)file->private_data)->netfid; + posix_locking = (cifs_sb->tcon->ses->capabilities & CAP_UNIX) && + (CIFS_UNIX_FCNTL_CAP & le64_to_cpu(cifs_sb->tcon->fsUnixInfo.Capability)); /* BB add code here to normalize offset and length to account for negative length which we can not accept over the wire */ if (IS_GETLK(cmd)) { - if((cifs_sb->tcon->ses->capabilities & CAP_UNIX) && - (CIFS_UNIX_FCNTL_CAP & - le64_to_cpu(cifs_sb->tcon->fsUnixInfo.Capability))) { + if(posix_locking) { int posix_lock_type; if(lockType & LOCKING_ANDX_SHARED_LOCK) posix_lock_type = CIFS_RDLCK; @@ -682,9 +713,15 @@ int cifs_lock(struct file *file, int cmd, struct file_lock *pfLock) FreeXid(xid); return rc; } - if ((cifs_sb->tcon->ses->capabilities & CAP_UNIX) && - (CIFS_UNIX_FCNTL_CAP & - le64_to_cpu(cifs_sb->tcon->fsUnixInfo.Capability))) { + + if (!numLock && !numUnlock) { + /* if no lock or unlock then nothing + to do since we do not know what it is */ + FreeXid(xid); + return -EOPNOTSUPP; + } + + if (posix_locking) { int posix_lock_type; if(lockType & LOCKING_ANDX_SHARED_LOCK) posix_lock_type = CIFS_RDLCK; @@ -693,18 +730,46 @@ int cifs_lock(struct file *file, int cmd, struct file_lock *pfLock) if(numUnlock == 1) posix_lock_type = CIFS_UNLCK; - else if(numLock == 0) { - /* if no lock or unlock then nothing - to do since we do not know what it is */ - FreeXid(xid); - return -EOPNOTSUPP; - } + rc = CIFSSMBPosixLock(xid, pTcon, netfid, 0 /* set */, length, pfLock, posix_lock_type, wait_flag); - } else - rc = CIFSSMBLock(xid, pTcon, netfid, length, pfLock->fl_start, - numUnlock, numLock, lockType, wait_flag); + } else { + struct cifsFileInfo *fid = (struct cifsFileInfo *)file->private_data; + + if (numLock) { + rc = CIFSSMBLock(xid, pTcon, netfid, length, pfLock->fl_start, + 0, numLock, lockType, wait_flag); + + if (rc == 0) { + /* For Windows locks we must store them. */ + rc = store_file_lock(fid, length, + pfLock->fl_start, lockType); + } + } else if (numUnlock) { + /* For each stored lock that this unlock overlaps + completely, unlock it. */ + int stored_rc = 0; + struct cifsLockInfo *li, *tmp; + + down(&fid->lock_sem); + list_for_each_entry_safe(li, tmp, &fid->llist, llist) { + if (pfLock->fl_start <= li->offset && + length >= li->length) { + stored_rc = CIFSSMBLock(xid, pTcon, netfid, + li->length, li->offset, + 1, 0, li->type, FALSE); + if (stored_rc) + rc = stored_rc; + + list_del(&li->llist); + kfree(li); + } + } + up(&fid->lock_sem); + } + } + if (pfLock->fl_flags & FL_POSIX) posix_lock_file_wait(file, pfLock); FreeXid(xid); diff --git a/fs/cifs/netmisc.c b/fs/cifs/netmisc.c index b66eff5dc624..ce87550e918f 100644 --- a/fs/cifs/netmisc.c +++ b/fs/cifs/netmisc.c @@ -72,6 +72,7 @@ static const struct smb_to_posix_error mapping_table_ERRDOS[] = { {ERRinvlevel,-EOPNOTSUPP}, {ERRdirnotempty, -ENOTEMPTY}, {ERRnotlocked, -ENOLCK}, + {ERRcancelviolation, -ENOLCK}, {ERRalreadyexists, -EEXIST}, {ERRmoredata, -EOVERFLOW}, {ERReasnotsupported,-EOPNOTSUPP}, diff --git a/fs/cifs/smberr.h b/fs/cifs/smberr.h index cd41c67ff8d3..212c3c296409 100644 --- a/fs/cifs/smberr.h +++ b/fs/cifs/smberr.h @@ -95,6 +95,7 @@ #define ERRinvlevel 124 #define ERRdirnotempty 145 #define ERRnotlocked 158 +#define ERRcancelviolation 173 #define ERRalreadyexists 183 #define ERRbadpipe 230 #define ERRpipebusy 231 diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c index 748b0df07a73..48d47b46b1fb 100644 --- a/fs/cifs/transport.c +++ b/fs/cifs/transport.c @@ -37,7 +37,7 @@ extern mempool_t *cifs_mid_poolp; extern kmem_cache_t *cifs_oplock_cachep; static struct mid_q_entry * -AllocMidQEntry(struct smb_hdr *smb_buffer, struct cifsSesInfo *ses) +AllocMidQEntry(const struct smb_hdr *smb_buffer, struct cifsSesInfo *ses) { struct mid_q_entry *temp; @@ -204,6 +204,10 @@ smb_send(struct socket *ssocket, struct smb_hdr *smb_buffer, rc = 0; } + /* Don't want to modify the buffer as a + side effect of this call. */ + smb_buffer->smb_buf_length = smb_buf_length; + return rc; } @@ -218,6 +222,7 @@ smb_send2(struct socket *ssocket, struct kvec *iov, int n_vec, unsigned int len = iov[0].iov_len; unsigned int total_len; int first_vec = 0; + unsigned int smb_buf_length = smb_buffer->smb_buf_length; if(ssocket == NULL) return -ENOTSOCK; /* BB eventually add reconnect code here */ @@ -294,9 +299,123 @@ smb_send2(struct socket *ssocket, struct kvec *iov, int n_vec, } else rc = 0; + /* Don't want to modify the buffer as a + side effect of this call. */ + smb_buffer->smb_buf_length = smb_buf_length; + return rc; } +static int wait_for_free_request(struct cifsSesInfo *ses, const int long_op) +{ + if(long_op == -1) { + /* oplock breaks must not be held up */ + atomic_inc(&ses->server->inFlight); + } else { + spin_lock(&GlobalMid_Lock); + while(1) { + if(atomic_read(&ses->server->inFlight) >= + cifs_max_pending){ + spin_unlock(&GlobalMid_Lock); +#ifdef CONFIG_CIFS_STATS2 + atomic_inc(&ses->server->num_waiters); +#endif + wait_event(ses->server->request_q, + atomic_read(&ses->server->inFlight) + < cifs_max_pending); +#ifdef CONFIG_CIFS_STATS2 + atomic_dec(&ses->server->num_waiters); +#endif + spin_lock(&GlobalMid_Lock); + } else { + if(ses->server->tcpStatus == CifsExiting) { + spin_unlock(&GlobalMid_Lock); + return -ENOENT; + } + + /* can not count locking commands against total since + they are allowed to block on server */ + + /* update # of requests on the wire to server */ + if (long_op < 3) + atomic_inc(&ses->server->inFlight); + spin_unlock(&GlobalMid_Lock); + break; + } + } + } + return 0; +} + +static int allocate_mid(struct cifsSesInfo *ses, struct smb_hdr *in_buf, + struct mid_q_entry **ppmidQ) +{ + if (ses->server->tcpStatus == CifsExiting) { + return -ENOENT; + } else if (ses->server->tcpStatus == CifsNeedReconnect) { + cFYI(1,("tcp session dead - return to caller to retry")); + return -EAGAIN; + } else if (ses->status != CifsGood) { + /* check if SMB session is bad because we are setting it up */ + if((in_buf->Command != SMB_COM_SESSION_SETUP_ANDX) && + (in_buf->Command != SMB_COM_NEGOTIATE)) { + return -EAGAIN; + } /* else ok - we are setting up session */ + } + *ppmidQ = AllocMidQEntry(in_buf, ses); + if (*ppmidQ == NULL) { + return -ENOMEM; + } + return 0; +} + +static int wait_for_response(struct cifsSesInfo *ses, + struct mid_q_entry *midQ, + unsigned long timeout, + unsigned long time_to_wait) +{ + unsigned long curr_timeout; + + for (;;) { + curr_timeout = timeout + jiffies; + wait_event(ses->server->response_q, + (!(midQ->midState == MID_REQUEST_SUBMITTED)) || + time_after(jiffies, curr_timeout) || + ((ses->server->tcpStatus != CifsGood) && + (ses->server->tcpStatus != CifsNew))); + + if (time_after(jiffies, curr_timeout) && + (midQ->midState == MID_REQUEST_SUBMITTED) && + ((ses->server->tcpStatus == CifsGood) || + (ses->server->tcpStatus == CifsNew))) { + + unsigned long lrt; + + /* We timed out. Is the server still + sending replies ? */ + spin_lock(&GlobalMid_Lock); + lrt = ses->server->lstrp; + spin_unlock(&GlobalMid_Lock); + + /* Calculate time_to_wait past last receive time. + Although we prefer not to time out if the + server is still responding - we will time + out if the server takes more than 15 (or 45 + or 180) seconds to respond to this request + and has not responded to any request from + other threads on the client within 10 seconds */ + lrt += time_to_wait; + if (time_after(jiffies, lrt)) { + /* No replies for time_to_wait. */ + cERROR(1,("server not responding")); + return -1; + } + } else { + return 0; + } + } +} + int SendReceive2(const unsigned int xid, struct cifsSesInfo *ses, struct kvec *iov, int n_vec, int * pRespBufType /* ret */, @@ -324,75 +443,27 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses, /* Ensure that we do not send more than 50 overlapping requests to the same server. We may make this configurable later or use ses->maxReq */ - if(long_op == -1) { - /* oplock breaks must not be held up */ - atomic_inc(&ses->server->inFlight); - } else { - spin_lock(&GlobalMid_Lock); - while(1) { - if(atomic_read(&ses->server->inFlight) >= - cifs_max_pending){ - spin_unlock(&GlobalMid_Lock); -#ifdef CONFIG_CIFS_STATS2 - atomic_inc(&ses->server->num_waiters); -#endif - wait_event(ses->server->request_q, - atomic_read(&ses->server->inFlight) - < cifs_max_pending); -#ifdef CONFIG_CIFS_STATS2 - atomic_dec(&ses->server->num_waiters); -#endif - spin_lock(&GlobalMid_Lock); - } else { - if(ses->server->tcpStatus == CifsExiting) { - spin_unlock(&GlobalMid_Lock); - cifs_small_buf_release(in_buf); - return -ENOENT; - } - /* can not count locking commands against total since - they are allowed to block on server */ - - if(long_op < 3) { - /* update # of requests on the wire to server */ - atomic_inc(&ses->server->inFlight); - } - spin_unlock(&GlobalMid_Lock); - break; - } - } + rc = wait_for_free_request(ses, long_op); + if (rc) { + cifs_small_buf_release(in_buf); + return rc; } + /* make sure that we sign in the same order that we send on this socket and avoid races inside tcp sendmsg code that could cause corruption of smb data */ down(&ses->server->tcpSem); - if (ses->server->tcpStatus == CifsExiting) { - rc = -ENOENT; - goto out_unlock2; - } else if (ses->server->tcpStatus == CifsNeedReconnect) { - cFYI(1,("tcp session dead - return to caller to retry")); - rc = -EAGAIN; - goto out_unlock2; - } else if (ses->status != CifsGood) { - /* check if SMB session is bad because we are setting it up */ - if((in_buf->Command != SMB_COM_SESSION_SETUP_ANDX) && - (in_buf->Command != SMB_COM_NEGOTIATE)) { - rc = -EAGAIN; - goto out_unlock2; - } /* else ok - we are setting up session */ - } - midQ = AllocMidQEntry(in_buf, ses); - if (midQ == NULL) { + rc = allocate_mid(ses, in_buf, &midQ); + if (rc) { up(&ses->server->tcpSem); cifs_small_buf_release(in_buf); - /* If not lock req, update # of requests on wire to server */ - if(long_op < 3) { - atomic_dec(&ses->server->inFlight); - wake_up(&ses->server->request_q); - } - return -ENOMEM; + /* Update # of requests on wire to server */ + atomic_dec(&ses->server->inFlight); + wake_up(&ses->server->request_q); + return rc; } rc = cifs_sign_smb2(iov, n_vec, ses->server, &midQ->sequence_number); @@ -407,32 +478,23 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses, atomic_dec(&ses->server->inSend); midQ->when_sent = jiffies; #endif - if(rc < 0) { - DeleteMidQEntry(midQ); - up(&ses->server->tcpSem); - cifs_small_buf_release(in_buf); - /* If not lock req, update # of requests on wire to server */ - if(long_op < 3) { - atomic_dec(&ses->server->inFlight); - wake_up(&ses->server->request_q); - } - return rc; - } else { - up(&ses->server->tcpSem); - cifs_small_buf_release(in_buf); - } + + up(&ses->server->tcpSem); + cifs_small_buf_release(in_buf); + + if(rc < 0) + goto out; if (long_op == -1) - goto cifs_no_response_exit2; + goto out; else if (long_op == 2) /* writes past end of file can take loong time */ timeout = 180 * HZ; else if (long_op == 1) timeout = 45 * HZ; /* should be greater than servers oplock break timeout (about 43 seconds) */ - else if (long_op > 2) { - timeout = MAX_SCHEDULE_TIMEOUT; - } else + else timeout = 15 * HZ; + /* wait for 15 seconds or until woken up due to response arriving or due to last connection to this server being unmounted */ if (signal_pending(current)) { @@ -442,53 +504,7 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses, } /* No user interrupts in wait - wreaks havoc with performance */ - if(timeout != MAX_SCHEDULE_TIMEOUT) { - unsigned long curr_timeout; - - for (;;) { - curr_timeout = timeout + jiffies; - wait_event(ses->server->response_q, - (!(midQ->midState == MID_REQUEST_SUBMITTED)) || - time_after(jiffies, curr_timeout) || - ((ses->server->tcpStatus != CifsGood) && - (ses->server->tcpStatus != CifsNew))); - - if (time_after(jiffies, curr_timeout) && - (midQ->midState == MID_REQUEST_SUBMITTED) && - ((ses->server->tcpStatus == CifsGood) || - (ses->server->tcpStatus == CifsNew))) { - - unsigned long lrt; - - /* We timed out. Is the server still - sending replies ? */ - spin_lock(&GlobalMid_Lock); - lrt = ses->server->lstrp; - spin_unlock(&GlobalMid_Lock); - - /* Calculate 10 seconds past last receive time. - Although we prefer not to time out if the - server is still responding - we will time - out if the server takes more than 15 (or 45 - or 180) seconds to respond to this request - and has not responded to any request from - other threads on the client within 10 seconds */ - lrt += (10 * HZ); - if (time_after(jiffies, lrt)) { - /* No replies for 10 seconds. */ - cERROR(1,("server not responding")); - break; - } - } else { - break; - } - } - } else { - wait_event(ses->server->response_q, - (!(midQ->midState == MID_REQUEST_SUBMITTED)) || - ((ses->server->tcpStatus != CifsGood) && - (ses->server->tcpStatus != CifsNew))); - } + wait_for_response(ses, midQ, timeout, 10 * HZ); spin_lock(&GlobalMid_Lock); if (midQ->resp_buf) { @@ -516,11 +532,9 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses, } spin_unlock(&GlobalMid_Lock); DeleteMidQEntry(midQ); - /* If not lock req, update # of requests on wire to server */ - if(long_op < 3) { - atomic_dec(&ses->server->inFlight); - wake_up(&ses->server->request_q); - } + /* Update # of requests on wire to server */ + atomic_dec(&ses->server->inFlight); + wake_up(&ses->server->request_q); return rc; } @@ -571,24 +585,12 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses, cFYI(1,("Bad MID state?")); } } -cifs_no_response_exit2: + +out: + DeleteMidQEntry(midQ); - - if(long_op < 3) { - atomic_dec(&ses->server->inFlight); - wake_up(&ses->server->request_q); - } - - return rc; - -out_unlock2: - up(&ses->server->tcpSem); - cifs_small_buf_release(in_buf); - /* If not lock req, update # of requests on wire to server */ - if(long_op < 3) { - atomic_dec(&ses->server->inFlight); - wake_up(&ses->server->request_q); - } + atomic_dec(&ses->server->inFlight); + wake_up(&ses->server->request_q); return rc; } @@ -618,85 +620,34 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses, /* Ensure that we do not send more than 50 overlapping requests to the same server. We may make this configurable later or use ses->maxReq */ - if(long_op == -1) { - /* oplock breaks must not be held up */ - atomic_inc(&ses->server->inFlight); - } else { - spin_lock(&GlobalMid_Lock); - while(1) { - if(atomic_read(&ses->server->inFlight) >= - cifs_max_pending){ - spin_unlock(&GlobalMid_Lock); -#ifdef CONFIG_CIFS_STATS2 - atomic_inc(&ses->server->num_waiters); -#endif - wait_event(ses->server->request_q, - atomic_read(&ses->server->inFlight) - < cifs_max_pending); -#ifdef CONFIG_CIFS_STATS2 - atomic_dec(&ses->server->num_waiters); -#endif - spin_lock(&GlobalMid_Lock); - } else { - if(ses->server->tcpStatus == CifsExiting) { - spin_unlock(&GlobalMid_Lock); - return -ENOENT; - } - /* can not count locking commands against total since - they are allowed to block on server */ - - if(long_op < 3) { - /* update # of requests on the wire to server */ - atomic_inc(&ses->server->inFlight); - } - spin_unlock(&GlobalMid_Lock); - break; - } - } - } + rc = wait_for_free_request(ses, long_op); + if (rc) + return rc; + /* make sure that we sign in the same order that we send on this socket and avoid races inside tcp sendmsg code that could cause corruption of smb data */ down(&ses->server->tcpSem); - if (ses->server->tcpStatus == CifsExiting) { - rc = -ENOENT; - goto out_unlock; - } else if (ses->server->tcpStatus == CifsNeedReconnect) { - cFYI(1,("tcp session dead - return to caller to retry")); - rc = -EAGAIN; - goto out_unlock; - } else if (ses->status != CifsGood) { - /* check if SMB session is bad because we are setting it up */ - if((in_buf->Command != SMB_COM_SESSION_SETUP_ANDX) && - (in_buf->Command != SMB_COM_NEGOTIATE)) { - rc = -EAGAIN; - goto out_unlock; - } /* else ok - we are setting up session */ - } - midQ = AllocMidQEntry(in_buf, ses); - if (midQ == NULL) { + rc = allocate_mid(ses, in_buf, &midQ); + if (rc) { up(&ses->server->tcpSem); - /* If not lock req, update # of requests on wire to server */ - if(long_op < 3) { - atomic_dec(&ses->server->inFlight); - wake_up(&ses->server->request_q); - } - return -ENOMEM; + /* Update # of requests on wire to server */ + atomic_dec(&ses->server->inFlight); + wake_up(&ses->server->request_q); + return rc; } if (in_buf->smb_buf_length > CIFSMaxBufSize + MAX_CIFS_HDR_SIZE - 4) { - up(&ses->server->tcpSem); cERROR(1, ("Illegal length, greater than maximum frame, %d", in_buf->smb_buf_length)); DeleteMidQEntry(midQ); - /* If not lock req, update # of requests on wire to server */ - if(long_op < 3) { - atomic_dec(&ses->server->inFlight); - wake_up(&ses->server->request_q); - } + up(&ses->server->tcpSem); + /* Update # of requests on wire to server */ + atomic_dec(&ses->server->inFlight); + wake_up(&ses->server->request_q); return -EIO; } @@ -712,27 +663,19 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses, atomic_dec(&ses->server->inSend); midQ->when_sent = jiffies; #endif - if(rc < 0) { - DeleteMidQEntry(midQ); - up(&ses->server->tcpSem); - /* If not lock req, update # of requests on wire to server */ - if(long_op < 3) { - atomic_dec(&ses->server->inFlight); - wake_up(&ses->server->request_q); - } - return rc; - } else - up(&ses->server->tcpSem); + up(&ses->server->tcpSem); + + if(rc < 0) + goto out; + if (long_op == -1) - goto cifs_no_response_exit; + goto out; else if (long_op == 2) /* writes past end of file can take loong time */ timeout = 180 * HZ; else if (long_op == 1) timeout = 45 * HZ; /* should be greater than servers oplock break timeout (about 43 seconds) */ - else if (long_op > 2) { - timeout = MAX_SCHEDULE_TIMEOUT; - } else + else timeout = 15 * HZ; /* wait for 15 seconds or until woken up due to response arriving or due to last connection to this server being unmounted */ @@ -743,47 +686,7 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses, } /* No user interrupts in wait - wreaks havoc with performance */ - if(timeout != MAX_SCHEDULE_TIMEOUT) { - unsigned long curr_timeout; - - for (;;) { - curr_timeout = timeout + jiffies; - wait_event(ses->server->response_q, - (!(midQ->midState == MID_REQUEST_SUBMITTED)) || - time_after(jiffies, curr_timeout) || - ((ses->server->tcpStatus != CifsGood) && - (ses->server->tcpStatus != CifsNew))); - - if (time_after(jiffies, curr_timeout) && - (midQ->midState == MID_REQUEST_SUBMITTED) && - ((ses->server->tcpStatus == CifsGood) || - (ses->server->tcpStatus == CifsNew))) { - - unsigned long lrt; - - /* We timed out. Is the server still - sending replies ? */ - spin_lock(&GlobalMid_Lock); - lrt = ses->server->lstrp; - spin_unlock(&GlobalMid_Lock); - - /* Calculate 10 seconds past last receive time*/ - lrt += (10 * HZ); - if (time_after(jiffies, lrt)) { - /* Server sent no reply in 10 seconds */ - cERROR(1,("Server not responding")); - break; - } - } else { - break; - } - } - } else { - wait_event(ses->server->response_q, - (!(midQ->midState == MID_REQUEST_SUBMITTED)) || - ((ses->server->tcpStatus != CifsGood) && - (ses->server->tcpStatus != CifsNew))); - } + wait_for_response(ses, midQ, timeout, 10 * HZ); spin_lock(&GlobalMid_Lock); if (midQ->resp_buf) { @@ -811,11 +714,9 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses, } spin_unlock(&GlobalMid_Lock); DeleteMidQEntry(midQ); - /* If not lock req, update # of requests on wire to server */ - if(long_op < 3) { - atomic_dec(&ses->server->inFlight); - wake_up(&ses->server->request_q); - } + /* Update # of requests on wire to server */ + atomic_dec(&ses->server->inFlight); + wake_up(&ses->server->request_q); return rc; } @@ -862,23 +763,253 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses, cERROR(1,("Bad MID state?")); } } -cifs_no_response_exit: + +out: + DeleteMidQEntry(midQ); - - if(long_op < 3) { - atomic_dec(&ses->server->inFlight); - wake_up(&ses->server->request_q); - } - - return rc; - -out_unlock: - up(&ses->server->tcpSem); - /* If not lock req, update # of requests on wire to server */ - if(long_op < 3) { - atomic_dec(&ses->server->inFlight); - wake_up(&ses->server->request_q); - } + atomic_dec(&ses->server->inFlight); + wake_up(&ses->server->request_q); return rc; } + +/* Send an NT_CANCEL SMB to cause the POSIX blocking lock to return. */ + +static int +send_nt_cancel(struct cifsTconInfo *tcon, struct smb_hdr *in_buf, + struct mid_q_entry *midQ) +{ + int rc = 0; + struct cifsSesInfo *ses = tcon->ses; + __u16 mid = in_buf->Mid; + + header_assemble(in_buf, SMB_COM_NT_CANCEL, tcon, 0); + in_buf->Mid = mid; + down(&ses->server->tcpSem); + rc = cifs_sign_smb(in_buf, ses->server, &midQ->sequence_number); + if (rc) { + up(&ses->server->tcpSem); + return rc; + } + rc = smb_send(ses->server->ssocket, in_buf, in_buf->smb_buf_length, + (struct sockaddr *) &(ses->server->addr.sockAddr)); + up(&ses->server->tcpSem); + return rc; +} + +/* We send a LOCKINGX_CANCEL_LOCK to cause the Windows + blocking lock to return. */ + +static int +send_lock_cancel(const unsigned int xid, struct cifsTconInfo *tcon, + struct smb_hdr *in_buf, + struct smb_hdr *out_buf) +{ + int bytes_returned; + struct cifsSesInfo *ses = tcon->ses; + LOCK_REQ *pSMB = (LOCK_REQ *)in_buf; + + /* We just modify the current in_buf to change + the type of lock from LOCKING_ANDX_SHARED_LOCK + or LOCKING_ANDX_EXCLUSIVE_LOCK to + LOCKING_ANDX_CANCEL_LOCK. */ + + pSMB->LockType = LOCKING_ANDX_CANCEL_LOCK|LOCKING_ANDX_LARGE_FILES; + pSMB->Timeout = 0; + pSMB->hdr.Mid = GetNextMid(ses->server); + + return SendReceive(xid, ses, in_buf, out_buf, + &bytes_returned, 0); +} + +int +SendReceiveBlockingLock(const unsigned int xid, struct cifsTconInfo *tcon, + struct smb_hdr *in_buf, struct smb_hdr *out_buf, + int *pbytes_returned) +{ + int rc = 0; + int rstart = 0; + unsigned int receive_len; + struct mid_q_entry *midQ; + struct cifsSesInfo *ses; + + if (tcon == NULL || tcon->ses == NULL) { + cERROR(1,("Null smb session")); + return -EIO; + } + ses = tcon->ses; + + if(ses->server == NULL) { + cERROR(1,("Null tcp session")); + return -EIO; + } + + if(ses->server->tcpStatus == CifsExiting) + return -ENOENT; + + /* Ensure that we do not send more than 50 overlapping requests + to the same server. We may make this configurable later or + use ses->maxReq */ + + rc = wait_for_free_request(ses, 3); + if (rc) + return rc; + + /* make sure that we sign in the same order that we send on this socket + and avoid races inside tcp sendmsg code that could cause corruption + of smb data */ + + down(&ses->server->tcpSem); + + rc = allocate_mid(ses, in_buf, &midQ); + if (rc) { + up(&ses->server->tcpSem); + return rc; + } + + if (in_buf->smb_buf_length > CIFSMaxBufSize + MAX_CIFS_HDR_SIZE - 4) { + up(&ses->server->tcpSem); + cERROR(1, ("Illegal length, greater than maximum frame, %d", + in_buf->smb_buf_length)); + DeleteMidQEntry(midQ); + return -EIO; + } + + rc = cifs_sign_smb(in_buf, ses->server, &midQ->sequence_number); + + midQ->midState = MID_REQUEST_SUBMITTED; +#ifdef CONFIG_CIFS_STATS2 + atomic_inc(&ses->server->inSend); +#endif + rc = smb_send(ses->server->ssocket, in_buf, in_buf->smb_buf_length, + (struct sockaddr *) &(ses->server->addr.sockAddr)); +#ifdef CONFIG_CIFS_STATS2 + atomic_dec(&ses->server->inSend); + midQ->when_sent = jiffies; +#endif + up(&ses->server->tcpSem); + + if(rc < 0) { + DeleteMidQEntry(midQ); + return rc; + } + + /* Wait for a reply - allow signals to interrupt. */ + rc = wait_event_interruptible(ses->server->response_q, + (!(midQ->midState == MID_REQUEST_SUBMITTED)) || + ((ses->server->tcpStatus != CifsGood) && + (ses->server->tcpStatus != CifsNew))); + + /* Were we interrupted by a signal ? */ + if ((rc == -ERESTARTSYS) && + (midQ->midState == MID_REQUEST_SUBMITTED) && + ((ses->server->tcpStatus == CifsGood) || + (ses->server->tcpStatus == CifsNew))) { + + if (in_buf->Command == SMB_COM_TRANSACTION2) { + /* POSIX lock. We send a NT_CANCEL SMB to cause the + blocking lock to return. */ + + rc = send_nt_cancel(tcon, in_buf, midQ); + if (rc) { + DeleteMidQEntry(midQ); + return rc; + } + } else { + /* Windows lock. We send a LOCKINGX_CANCEL_LOCK + to cause the blocking lock to return. */ + + rc = send_lock_cancel(xid, tcon, in_buf, out_buf); + + /* If we get -ENOLCK back the lock may have + already been removed. Don't exit in this case. */ + if (rc && rc != -ENOLCK) { + DeleteMidQEntry(midQ); + return rc; + } + } + + /* Wait 5 seconds for the response. */ + if (wait_for_response(ses, midQ, 5 * HZ, 5 * HZ)==0) { + /* We got the response - restart system call. */ + rstart = 1; + } + } + + spin_lock(&GlobalMid_Lock); + if (midQ->resp_buf) { + spin_unlock(&GlobalMid_Lock); + receive_len = midQ->resp_buf->smb_buf_length; + } else { + cERROR(1,("No response for cmd %d mid %d", + midQ->command, midQ->mid)); + if(midQ->midState == MID_REQUEST_SUBMITTED) { + if(ses->server->tcpStatus == CifsExiting) + rc = -EHOSTDOWN; + else { + ses->server->tcpStatus = CifsNeedReconnect; + midQ->midState = MID_RETRY_NEEDED; + } + } + + if (rc != -EHOSTDOWN) { + if(midQ->midState == MID_RETRY_NEEDED) { + rc = -EAGAIN; + cFYI(1,("marking request for retry")); + } else { + rc = -EIO; + } + } + spin_unlock(&GlobalMid_Lock); + DeleteMidQEntry(midQ); + return rc; + } + + if (receive_len > CIFSMaxBufSize + MAX_CIFS_HDR_SIZE) { + cERROR(1, ("Frame too large received. Length: %d Xid: %d", + receive_len, xid)); + rc = -EIO; + } else { /* rcvd frame is ok */ + + if (midQ->resp_buf && out_buf + && (midQ->midState == MID_RESPONSE_RECEIVED)) { + out_buf->smb_buf_length = receive_len; + memcpy((char *)out_buf + 4, + (char *)midQ->resp_buf + 4, + receive_len); + + dump_smb(out_buf, 92); + /* convert the length into a more usable form */ + if((receive_len > 24) && + (ses->server->secMode & (SECMODE_SIGN_REQUIRED | + SECMODE_SIGN_ENABLED))) { + rc = cifs_verify_signature(out_buf, + ses->server->mac_signing_key, + midQ->sequence_number+1); + if(rc) { + cERROR(1,("Unexpected SMB signature")); + /* BB FIXME add code to kill session */ + } + } + + *pbytes_returned = out_buf->smb_buf_length; + + /* BB special case reconnect tid and uid here? */ + rc = map_smb_to_linux_error(out_buf); + + /* convert ByteCount if necessary */ + if (receive_len >= + sizeof (struct smb_hdr) - + 4 /* do not count RFC1001 header */ + + (2 * out_buf->WordCount) + 2 /* bcc */ ) + BCC(out_buf) = le16_to_cpu(BCC_LE(out_buf)); + } else { + rc = -EIO; + cERROR(1,("Bad MID state?")); + } + } + DeleteMidQEntry(midQ); + if (rstart && rc == -EACCES) + return -ERESTARTSYS; + return rc; +} From 66abda5e1fa48e12e06d0b68746b0e67202a97d2 Mon Sep 17 00:00:00 2001 From: Steve French Date: Fri, 11 Aug 2006 16:52:09 +0000 Subject: [PATCH 128/488] [CIFS] Fix oops when negotiating lanman and no password specified Pointed out by Guenter Kukkukk Signed-of-by: Steve French (cherry picked from bbf33d512da608c7221fec42b56b9ef89c25a5ee commit) --- fs/cifs/cifsencrypt.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c index a89efaf78a26..4bc250b2d9fc 100644 --- a/fs/cifs/cifsencrypt.c +++ b/fs/cifs/cifsencrypt.c @@ -277,7 +277,8 @@ void calc_lanman_hash(struct cifsSesInfo * ses, char * lnm_session_key) return; memset(password_with_pad, 0, CIFS_ENCPWD_SIZE); - strncpy(password_with_pad, ses->password, CIFS_ENCPWD_SIZE); + if(ses->password) + strncpy(password_with_pad, ses->password, CIFS_ENCPWD_SIZE); if((ses->server->secMode & SECMODE_PW_ENCRYPT) == 0) if(extended_security & CIFSSEC_MAY_PLNTXT) { From a0c5a64552e3c57d7f9eb593c6ce21a285ac86b4 Mon Sep 17 00:00:00 2001 From: Yoav Steinberg Date: Sun, 13 Aug 2006 14:17:12 +0100 Subject: [PATCH 129/488] [ARM] 3752/1: fix versatile flash resource map Patch from Yoav Steinberg Flash resource mapping for versatile machine included one extra byte for the end address. This results in failure to map other resources on physical address directly after the NOR flash. Signed-off-by: Yoav Steinberg Signed-off-by: Russell King --- arch/arm/mach-versatile/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-versatile/core.c b/arch/arm/mach-versatile/core.c index c4e3f8c68479..f2bbef07b1e4 100644 --- a/arch/arm/mach-versatile/core.c +++ b/arch/arm/mach-versatile/core.c @@ -285,7 +285,7 @@ static struct flash_platform_data versatile_flash_data = { static struct resource versatile_flash_resource = { .start = VERSATILE_FLASH_BASE, - .end = VERSATILE_FLASH_BASE + VERSATILE_FLASH_SIZE, + .end = VERSATILE_FLASH_BASE + VERSATILE_FLASH_SIZE - 1, .flags = IORESOURCE_MEM, }; From 18b6fe64d4d1f6e0a2c71429a5e5074f43e29203 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sun, 13 Aug 2006 18:05:09 -0700 Subject: [PATCH 130/488] [TCP]: Fix botched memory leak fix to tcpprobe_read(). Somehow I clobbered James's original fix and only my subsequent compiler warning change went in for that changeset. Get the real fix in there. Noticed by Jesper Juhl. Signed-off-by: David S. Miller --- net/ipv4/tcp_probe.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/ipv4/tcp_probe.c b/net/ipv4/tcp_probe.c index b3435324b573..dab37d2f65fc 100644 --- a/net/ipv4/tcp_probe.c +++ b/net/ipv4/tcp_probe.c @@ -130,11 +130,12 @@ static ssize_t tcpprobe_read(struct file *file, char __user *buf, error = wait_event_interruptible(tcpw.wait, __kfifo_len(tcpw.fifo) != 0); if (error) - return error; + goto out_free; cnt = kfifo_get(tcpw.fifo, tbuf, len); error = copy_to_user(buf, tbuf, cnt); +out_free: vfree(tbuf); return error ? error : cnt; From 97c802a113989800430a981b6f36b14c62163d37 Mon Sep 17 00:00:00 2001 From: Phil Oester Date: Sun, 13 Aug 2006 18:05:35 -0700 Subject: [PATCH 131/488] [NETFILTER]: xt_string: fix negation The xt_string match is broken with ! negation. This resolves a portion of netfilter bugzilla #497. Signed-off-by: Phil Oester Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- net/netfilter/xt_string.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/netfilter/xt_string.c b/net/netfilter/xt_string.c index d8e3891b5f8b..275330fcdaaa 100644 --- a/net/netfilter/xt_string.c +++ b/net/netfilter/xt_string.c @@ -37,7 +37,7 @@ static int match(const struct sk_buff *skb, return (skb_find_text((struct sk_buff *)skb, conf->from_offset, conf->to_offset, conf->config, &state) - != UINT_MAX) && !conf->invert; + != UINT_MAX) ^ conf->invert; } #define STRING_TEXT_PRIV(m) ((struct xt_string_info *) m) From 1c7628bd7a458faf7c96ef521f6d3a5ea9b106b8 Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Sun, 13 Aug 2006 18:06:02 -0700 Subject: [PATCH 132/488] [NETFILTER]: xt_hashlimit: fix limit off-by-one Hashlimit doesn't account for the first packet, which is inconsistent with the limit match. Reported by ryan.castellucci@gmail.com, netfilter bugzilla #500. Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- net/ipv4/netfilter/ipt_hashlimit.c | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) diff --git a/net/ipv4/netfilter/ipt_hashlimit.c b/net/ipv4/netfilter/ipt_hashlimit.c index 6b662449e825..3bd2368e1fc9 100644 --- a/net/ipv4/netfilter/ipt_hashlimit.c +++ b/net/ipv4/netfilter/ipt_hashlimit.c @@ -454,15 +454,12 @@ hashlimit_match(const struct sk_buff *skb, dh->rateinfo.credit_cap = user2credits(hinfo->cfg.avg * hinfo->cfg.burst); dh->rateinfo.cost = user2credits(hinfo->cfg.avg); - - spin_unlock_bh(&hinfo->lock); - return 1; + } else { + /* update expiration timeout */ + dh->expires = now + msecs_to_jiffies(hinfo->cfg.expire); + rateinfo_recalc(dh, now); } - /* update expiration timeout */ - dh->expires = now + msecs_to_jiffies(hinfo->cfg.expire); - - rateinfo_recalc(dh, now); if (dh->rateinfo.credit >= dh->rateinfo.cost) { /* We're underlimit. */ dh->rateinfo.credit -= dh->rateinfo.cost; From d49c73c729e2ef644558a1f441c044bfacdc9744 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sun, 13 Aug 2006 18:55:53 -0700 Subject: [PATCH 133/488] [IPSEC]: Validate properly in xfrm_dst_check() If dst->obsolete is -1, this is a signal from the bundle creator that we want the XFRM dst and the dsts that it references to be validated on every use. I misunderstood this intention when I changed xfrm_dst_check() to always return NULL. Now, when we purge a dst entry, by running dst_free() on it. This will set the dst->obsolete to a positive integer, and we want to return NULL in that case so that the socket does a relookup for the route. Thus, if dst->obsolete<0, let stale_bundle() validate the state, else always return NULL. In general, we need to do things more intelligently here because we flush too much state during rule changes. Herbert Xu has some ideas wherein the key manager gives us some help in this area. We can also use smarter state management algorithms inside of the kernel as well. Signed-off-by: David S. Miller --- net/xfrm/xfrm_policy.c | 27 ++++++++++++++++++++++++--- 1 file changed, 24 insertions(+), 3 deletions(-) diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c index f35bc676128c..3da67ca2c3ce 100644 --- a/net/xfrm/xfrm_policy.c +++ b/net/xfrm/xfrm_policy.c @@ -1134,12 +1134,33 @@ int __xfrm_route_forward(struct sk_buff *skb, unsigned short family) } EXPORT_SYMBOL(__xfrm_route_forward); +/* Optimize later using cookies and generation ids. */ + static struct dst_entry *xfrm_dst_check(struct dst_entry *dst, u32 cookie) { - /* If it is marked obsolete, which is how we even get here, - * then we have purged it from the policy bundle list and we - * did that for a good reason. + /* Code (such as __xfrm4_bundle_create()) sets dst->obsolete + * to "-1" to force all XFRM destinations to get validated by + * dst_ops->check on every use. We do this because when a + * normal route referenced by an XFRM dst is obsoleted we do + * not go looking around for all parent referencing XFRM dsts + * so that we can invalidate them. It is just too much work. + * Instead we make the checks here on every use. For example: + * + * XFRM dst A --> IPv4 dst X + * + * X is the "xdst->route" of A (X is also the "dst->path" of A + * in this example). If X is marked obsolete, "A" will not + * notice. That's what we are validating here via the + * stale_bundle() check. + * + * When a policy's bundle is pruned, we dst_free() the XFRM + * dst which causes it's ->obsolete field to be set to a + * positive non-zero integer. If an XFRM dst has been pruned + * like this, we want to force a new route lookup. */ + if (dst->obsolete < 0 && !stale_bundle(dst)) + return dst; + return NULL; } From 7ee66fcb94cb8be77d5f34cce7d315d11759f9c1 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Sun, 13 Aug 2006 18:56:26 -0700 Subject: [PATCH 134/488] [LLC]: multicast receive device match Fix from Aji_Srinivas@emc.com, STP packets are incorrectly received on all LLC datagram sockets, whichever interface they are bound to. The llc_sap datagram receive logic sends packets with a unicast destination MAC to one socket bound to that SAP and MAC, and multicast packets to all sockets bound to that SAP. STP packets are multicast, and we do need to know on which interface they were received. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller --- net/llc/llc_sap.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/llc/llc_sap.c b/net/llc/llc_sap.c index 42eb0c3a9780..61cb8cf7d153 100644 --- a/net/llc/llc_sap.c +++ b/net/llc/llc_sap.c @@ -330,6 +330,9 @@ static void llc_sap_mcast(struct llc_sap *sap, if (llc->laddr.lsap != laddr->lsap) continue; + if (llc->dev != skb->dev) + continue; + skb1 = skb_clone(skb, GFP_ATOMIC); if (!skb1) break; From 0eff66e625306a794ecba4b29ed12f7a147ce219 Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Sun, 13 Aug 2006 18:57:28 -0700 Subject: [PATCH 135/488] [NETFILTER]: {arp,ip,ip6}_tables: proper error recovery in init path Neither of {arp,ip,ip6}_tables cleans up behind itself when something goes wrong during initialization. Noticed by Rennie deGraaf Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- net/ipv4/netfilter/arp_tables.c | 27 +++++++++++++++++++------- net/ipv4/netfilter/ip_tables.c | 33 ++++++++++++++++++++++++-------- net/ipv6/netfilter/ip6_tables.c | 34 ++++++++++++++++++++++++--------- 3 files changed, 70 insertions(+), 24 deletions(-) diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c index 80c73ca90116..df4854cf598b 100644 --- a/net/ipv4/netfilter/arp_tables.c +++ b/net/ipv4/netfilter/arp_tables.c @@ -1170,21 +1170,34 @@ static int __init arp_tables_init(void) { int ret; - xt_proto_init(NF_ARP); + ret = xt_proto_init(NF_ARP); + if (ret < 0) + goto err1; /* Noone else will be downing sem now, so we won't sleep */ - xt_register_target(&arpt_standard_target); - xt_register_target(&arpt_error_target); + ret = xt_register_target(&arpt_standard_target); + if (ret < 0) + goto err2; + ret = xt_register_target(&arpt_error_target); + if (ret < 0) + goto err3; /* Register setsockopt */ ret = nf_register_sockopt(&arpt_sockopts); - if (ret < 0) { - duprintf("Unable to register sockopts.\n"); - return ret; - } + if (ret < 0) + goto err4; printk("arp_tables: (C) 2002 David S. Miller\n"); return 0; + +err4: + xt_unregister_target(&arpt_error_target); +err3: + xt_unregister_target(&arpt_standard_target); +err2: + xt_proto_fini(NF_ARP); +err1: + return ret; } static void __exit arp_tables_fini(void) diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c index fc5bdd5eb7d3..f316ff5fd8a6 100644 --- a/net/ipv4/netfilter/ip_tables.c +++ b/net/ipv4/netfilter/ip_tables.c @@ -2239,22 +2239,39 @@ static int __init ip_tables_init(void) { int ret; - xt_proto_init(AF_INET); + ret = xt_proto_init(AF_INET); + if (ret < 0) + goto err1; /* Noone else will be downing sem now, so we won't sleep */ - xt_register_target(&ipt_standard_target); - xt_register_target(&ipt_error_target); - xt_register_match(&icmp_matchstruct); + ret = xt_register_target(&ipt_standard_target); + if (ret < 0) + goto err2; + ret = xt_register_target(&ipt_error_target); + if (ret < 0) + goto err3; + ret = xt_register_match(&icmp_matchstruct); + if (ret < 0) + goto err4; /* Register setsockopt */ ret = nf_register_sockopt(&ipt_sockopts); - if (ret < 0) { - duprintf("Unable to register sockopts.\n"); - return ret; - } + if (ret < 0) + goto err5; printk("ip_tables: (C) 2000-2006 Netfilter Core Team\n"); return 0; + +err5: + xt_unregister_match(&icmp_matchstruct); +err4: + xt_unregister_target(&ipt_error_target); +err3: + xt_unregister_target(&ipt_standard_target); +err2: + xt_proto_fini(AF_INET); +err1: + return ret; } static void __exit ip_tables_fini(void) diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c index f26898b00347..c9d6b23cd3f7 100644 --- a/net/ipv6/netfilter/ip6_tables.c +++ b/net/ipv6/netfilter/ip6_tables.c @@ -1398,23 +1398,39 @@ static int __init ip6_tables_init(void) { int ret; - xt_proto_init(AF_INET6); + ret = xt_proto_init(AF_INET6); + if (ret < 0) + goto err1; /* Noone else will be downing sem now, so we won't sleep */ - xt_register_target(&ip6t_standard_target); - xt_register_target(&ip6t_error_target); - xt_register_match(&icmp6_matchstruct); + ret = xt_register_target(&ip6t_standard_target); + if (ret < 0) + goto err2; + ret = xt_register_target(&ip6t_error_target); + if (ret < 0) + goto err3; + ret = xt_register_match(&icmp6_matchstruct); + if (ret < 0) + goto err4; /* Register setsockopt */ ret = nf_register_sockopt(&ip6t_sockopts); - if (ret < 0) { - duprintf("Unable to register sockopts.\n"); - xt_proto_fini(AF_INET6); - return ret; - } + if (ret < 0) + goto err5; printk("ip6_tables: (C) 2000-2006 Netfilter Core Team\n"); return 0; + +err5: + xt_unregister_match(&icmp6_matchstruct); +err4: + xt_unregister_target(&ip6t_error_target); +err3: + xt_unregister_target(&ip6t_standard_target); +err2: + xt_proto_fini(AF_INET6); +err1: + return ret; } static void __exit ip6_tables_fini(void) From dcb7cd97f133f7cfbd181149a1e60215a869f895 Mon Sep 17 00:00:00 2001 From: Mark Huang Date: Sun, 13 Aug 2006 18:57:54 -0700 Subject: [PATCH 136/488] [NETFILTER]: ulog: fix panic on SMP kernels Fix kernel panic on various SMP machines. The culprit is a null ub->skb in ulog_send(). If ulog_timer() has already been scheduled on one CPU and is spinning on the lock, and ipt_ulog_packet() flushes the queue on another CPU by calling ulog_send() right before it exits, there will be no skbuff when ulog_timer() acquires the lock and calls ulog_send(). Cancelling the timer in ulog_send() doesn't help because it has already been scheduled and is running on the first CPU. Similar problem exists in ebt_ulog.c and nfnetlink_log.c. Signed-off-by: Mark Huang Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- net/bridge/netfilter/ebt_ulog.c | 3 +++ net/ipv4/netfilter/ipt_ULOG.c | 5 +++++ net/netfilter/nfnetlink_log.c | 3 +++ 3 files changed, 11 insertions(+) diff --git a/net/bridge/netfilter/ebt_ulog.c b/net/bridge/netfilter/ebt_ulog.c index 02693a230dc1..9f950db3b76f 100644 --- a/net/bridge/netfilter/ebt_ulog.c +++ b/net/bridge/netfilter/ebt_ulog.c @@ -74,6 +74,9 @@ static void ulog_send(unsigned int nlgroup) if (timer_pending(&ub->timer)) del_timer(&ub->timer); + if (!ub->skb) + return; + /* last nlmsg needs NLMSG_DONE */ if (ub->qlen > 1) ub->lastnlh->nlmsg_type = NLMSG_DONE; diff --git a/net/ipv4/netfilter/ipt_ULOG.c b/net/ipv4/netfilter/ipt_ULOG.c index d7dd7fe7051c..d46fd677fa11 100644 --- a/net/ipv4/netfilter/ipt_ULOG.c +++ b/net/ipv4/netfilter/ipt_ULOG.c @@ -115,6 +115,11 @@ static void ulog_send(unsigned int nlgroupnum) del_timer(&ub->timer); } + if (!ub->skb) { + DEBUGP("ipt_ULOG: ulog_send: nothing to send\n"); + return; + } + /* last nlmsg needs NLMSG_DONE */ if (ub->qlen > 1) ub->lastnlh->nlmsg_type = NLMSG_DONE; diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c index 61cdda4e5d3b..b59d3b2bde21 100644 --- a/net/netfilter/nfnetlink_log.c +++ b/net/netfilter/nfnetlink_log.c @@ -366,6 +366,9 @@ __nfulnl_send(struct nfulnl_instance *inst) if (timer_pending(&inst->timer)) del_timer(&inst->timer); + if (!inst->skb) + return 0; + if (inst->qlen > 1) inst->lastnlh->nlmsg_type = NLMSG_DONE; From e9fa4f7bd291c29a785666e2fa5a9cf3241ee6c3 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Sun, 13 Aug 2006 20:12:58 -0700 Subject: [PATCH 137/488] [INET]: Use pskb_trim_unique when trimming paged unique skbs The IPv4/IPv6 datagram output path was using skb_trim to trim paged packets because they know that the packet has not been cloned yet (since the packet hasn't been given to anything else in the system). This broke because skb_trim no longer allows paged packets to be trimmed. Paged packets must be given to one of the pskb_trim functions instead. This patch adds a new pskb_trim_unique function to cover the IPv4/IPv6 datagram output path scenario and replaces the corresponding skb_trim calls with it. Signed-off-by: Herbert Xu Signed-off-by: David S. Miller --- include/linux/skbuff.h | 15 +++++++++++++++ net/ipv4/ip_output.c | 4 ++-- net/ipv6/ip6_output.c | 2 +- 3 files changed, 18 insertions(+), 3 deletions(-) diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 3573ba9a2555..755e9cddac47 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -1039,6 +1039,21 @@ static inline int pskb_trim(struct sk_buff *skb, unsigned int len) return (len < skb->len) ? __pskb_trim(skb, len) : 0; } +/** + * pskb_trim_unique - remove end from a paged unique (not cloned) buffer + * @skb: buffer to alter + * @len: new length + * + * This is identical to pskb_trim except that the caller knows that + * the skb is not cloned so we should never get an error due to out- + * of-memory. + */ +static inline void pskb_trim_unique(struct sk_buff *skb, unsigned int len) +{ + int err = pskb_trim(skb, len); + BUG_ON(err); +} + /** * skb_orphan - orphan a buffer * @skb: buffer to orphan diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c index 9bf307a29783..4c20f5546893 100644 --- a/net/ipv4/ip_output.c +++ b/net/ipv4/ip_output.c @@ -947,7 +947,7 @@ alloc_new_skb: skb_prev->csum = csum_sub(skb_prev->csum, skb->csum); data += fraggap; - skb_trim(skb_prev, maxfraglen); + pskb_trim_unique(skb_prev, maxfraglen); } copy = datalen - transhdrlen - fraggap; @@ -1142,7 +1142,7 @@ ssize_t ip_append_page(struct sock *sk, struct page *page, data, fraggap, 0); skb_prev->csum = csum_sub(skb_prev->csum, skb->csum); - skb_trim(skb_prev, maxfraglen); + pskb_trim_unique(skb_prev, maxfraglen); } /* diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index 69451af6abe7..4fb47a252913 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -1095,7 +1095,7 @@ alloc_new_skb: skb_prev->csum = csum_sub(skb_prev->csum, skb->csum); data += fraggap; - skb_trim(skb_prev, maxfraglen); + pskb_trim_unique(skb_prev, maxfraglen); } copy = datalen - transhdrlen - fraggap; if (copy < 0) { From 09e590e5d5a93f2eaa748a89c623258e6bad1648 Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Sat, 12 Aug 2006 10:55:07 +0200 Subject: [PATCH 138/488] [PATCH] smc91x: disable DMA mode on the logicpd pxa270 Enabling PXA DMA for the smc91x on the logicpd pxa270 produces unacceptable interference with the TFT panel, so disable it. Also delete the lpd270 versions of the SMC_{in,out}[bl]() macros, as they aren't used, since the board only supports 16bit accesses. Signed-off-by: Lennert Buytenhek Signed-off-by: Jeff Garzik --- drivers/net/smc91x.h | 5 ----- 1 file changed, 5 deletions(-) diff --git a/drivers/net/smc91x.h b/drivers/net/smc91x.h index 4ec4b4d23ae5..9f9f8f2d5338 100644 --- a/drivers/net/smc91x.h +++ b/drivers/net/smc91x.h @@ -136,14 +136,9 @@ #define SMC_CAN_USE_32BIT 0 #define SMC_IO_SHIFT 0 #define SMC_NOWAIT 1 -#define SMC_USE_PXA_DMA 1 -#define SMC_inb(a, r) readb((a) + (r)) #define SMC_inw(a, r) readw((a) + (r)) -#define SMC_inl(a, r) readl((a) + (r)) -#define SMC_outb(v, a, r) writeb(v, (a) + (r)) #define SMC_outw(v, a, r) writew(v, (a) + (r)) -#define SMC_outl(v, a, r) writel(v, (a) + (r)) #define SMC_insw(a, r, p, l) readsw((a) + (r), p, l) #define SMC_outsw(a, r, p, l) writesw((a) + (r), p, l) From b64ef8afa58f397e1eaba2bd9ecaa6812064d464 Mon Sep 17 00:00:00 2001 From: Edgar Hucek Date: Sun, 13 Aug 2006 23:24:16 -0700 Subject: [PATCH 139/488] [PATCH] add imacfb documentation and detection Add basic Machine detection to imacfb and some Ducumentation bits for imacfb. Signed-off-by: Edgar Hucek Cc: "Antonino A. Daplas" Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- Documentation/fb/imacfb.txt | 31 +++++++++++++++++++++++ drivers/video/Kconfig | 2 +- drivers/video/imacfb.c | 49 +++++++++++++++++++++++++++++++++---- 3 files changed, 76 insertions(+), 6 deletions(-) create mode 100644 Documentation/fb/imacfb.txt diff --git a/Documentation/fb/imacfb.txt b/Documentation/fb/imacfb.txt new file mode 100644 index 000000000000..759028545a7e --- /dev/null +++ b/Documentation/fb/imacfb.txt @@ -0,0 +1,31 @@ + +What is imacfb? +=============== + +This is a generic EFI platform driver for Intel based Apple computers. +Imacfb is only for EFI booted Intel Macs. + +Supported Hardware +================== + +iMac 17"/20" +Macbook +Macbook Pro 15"/17" +MacMini + +How to use it? +============== + +Imacfb does not have any kind of autodetection of your machine. +You have to add the fillowing kernel parameters in your elilo.conf: + Macbook : + video=imacfb:macbook + MacMini : + video=imacfb:mini + Macbook Pro 15", iMac 17" : + video=imacfb:i17 + Macbook Pro 17", iMac 20" : + video=imacfb:i20 + +-- +Edgar Hucek diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig index c40b9b8b1e7e..702eb933cf88 100644 --- a/drivers/video/Kconfig +++ b/drivers/video/Kconfig @@ -554,7 +554,7 @@ config FB_VESA config FB_IMAC bool "Intel-based Macintosh Framebuffer Support" - depends on (FB = y) && X86 + depends on (FB = y) && X86 && EFI select FB_CFB_FILLRECT select FB_CFB_COPYAREA select FB_CFB_IMAGEBLIT diff --git a/drivers/video/imacfb.c b/drivers/video/imacfb.c index ff233b84dec4..b485bece5fc9 100644 --- a/drivers/video/imacfb.c +++ b/drivers/video/imacfb.c @@ -18,6 +18,8 @@ #include #include #include +#include +#include #include @@ -28,7 +30,7 @@ typedef enum _MAC_TYPE { M_I20, M_MINI, M_MACBOOK, - M_NEW + M_UNKNOWN } MAC_TYPE; /* --------------------------------------------------------------------- */ @@ -52,10 +54,36 @@ static struct fb_fix_screeninfo imacfb_fix __initdata = { }; static int inverse; -static int model = M_NEW; +static int model = M_UNKNOWN; static int manual_height; static int manual_width; +static int set_system(struct dmi_system_id *id) +{ + printk(KERN_INFO "imacfb: %s detected - set system to %ld\n", + id->ident, (long)id->driver_data); + + model = (long)id->driver_data; + + return 0; +} + +static struct dmi_system_id __initdata dmi_system_table[] = { + { set_system, "iMac4,1", { + DMI_MATCH(DMI_BIOS_VENDOR,"Apple Computer, Inc."), + DMI_MATCH(DMI_BIOS_VERSION,"iMac4,1") }, (void*)M_I17}, + { set_system, "MacBookPro1,1", { + DMI_MATCH(DMI_BIOS_VENDOR,"Apple Computer, Inc."), + DMI_MATCH(DMI_BIOS_VERSION,"MacBookPro1,1") }, (void*)M_I17}, + { set_system, "MacBook1,1", { + DMI_MATCH(DMI_BIOS_VENDOR,"Apple Computer, Inc."), + DMI_MATCH(DMI_PRODUCT_NAME,"MacBook1,1")}, (void *)M_MACBOOK}, + { set_system, "Macmini1,1", { + DMI_MATCH(DMI_BIOS_VENDOR,"Apple Computer, Inc."), + DMI_MATCH(DMI_PRODUCT_NAME,"Macmini1,1")}, (void *)M_MINI}, + {}, +}; + #define DEFAULT_FB_MEM 1024*1024*16 /* --------------------------------------------------------------------- */ @@ -149,7 +177,6 @@ static int __init imacfb_probe(struct platform_device *dev) screen_info.lfb_linelength = 1472 * 4; screen_info.lfb_base = 0x80010000; break; - case M_NEW: case M_I20: screen_info.lfb_width = 1680; screen_info.lfb_height = 1050; @@ -207,6 +234,10 @@ static int __init imacfb_probe(struct platform_device *dev) size_remap = size_total; imacfb_fix.smem_len = size_remap; +#ifndef __i386__ + screen_info.imacpm_seg = 0; +#endif + if (!request_mem_region(imacfb_fix.smem_start, size_total, "imacfb")) { printk(KERN_WARNING "imacfb: cannot reserve video memory at 0x%lx\n", @@ -324,8 +355,16 @@ static int __init imacfb_init(void) int ret; char *option = NULL; - /* ignore error return of fb_get_options */ - fb_get_options("imacfb", &option); + if (!efi_enabled) + return -ENODEV; + if (!dmi_check_system(dmi_system_table)) + return -ENODEV; + if (model == M_UNKNOWN) + return -ENODEV; + + if (fb_get_options("imacfb", &option)) + return -ENODEV; + imacfb_setup(option); ret = platform_driver_register(&imacfb_driver); From 1725cd0ae07bb31f68803edcc5bdc99952c7d2f4 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Sun, 13 Aug 2006 23:24:17 -0700 Subject: [PATCH 140/488] [PATCH] adfs error message fix Don't use NULL as a printf control string. Fixes bug #6889. Cc: Ralph Corderoy Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- fs/adfs/super.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/adfs/super.c b/fs/adfs/super.c index ba1c88af49fe..82011019494c 100644 --- a/fs/adfs/super.c +++ b/fs/adfs/super.c @@ -308,7 +308,7 @@ static struct adfs_discmap *adfs_read_map(struct super_block *sb, struct adfs_di if (adfs_checkmap(sb, dm)) return dm; - adfs_error(sb, NULL, "map corrupted"); + adfs_error(sb, "map corrupted"); error_free: while (--zone >= 0) From 95f8797f42b058333d1e6f0d1dcd8edf5dc6c244 Mon Sep 17 00:00:00 2001 From: Dan Bastone Date: Sun, 13 Aug 2006 23:24:18 -0700 Subject: [PATCH 141/488] [PATCH] initialize parts of udf inode earlier in create Eric says: > I saw an oops down this path when trying to create a new file on a UDF > filesystem which was internally marked as readonly, but mounted rw: > > udf_create > udf_new_inode > new_inode > alloc_inode > udf_alloc_inode > udf_new_block > returns EIO due to readonlyness > iput (on error) I ran into the same issue today, but when listing a directory with invalid/corrupt entries: udf_lookup udf_iget get_new_inode_fast alloc_inode udf_alloc_inode __udf_read_inode fails for any reason iput (on error) ... The following patch to udf_alloc_inode() should take care of both (and other similar) cases, but I've only tested it with udf_lookup(). Signed-off-by: Dan Bastone Cc: Eric Sandeen Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- fs/udf/super.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/fs/udf/super.c b/fs/udf/super.c index 4df822c881b6..7de172efa084 100644 --- a/fs/udf/super.c +++ b/fs/udf/super.c @@ -115,6 +115,13 @@ static struct inode *udf_alloc_inode(struct super_block *sb) ei = (struct udf_inode_info *)kmem_cache_alloc(udf_inode_cachep, SLAB_KERNEL); if (!ei) return NULL; + + ei->i_unique = 0; + ei->i_lenExtents = 0; + ei->i_next_alloc_block = 0; + ei->i_next_alloc_goal = 0; + ei->i_strat4096 = 0; + return &ei->vfs_inode; } From 3773dc92055f219c2f2403f9de774b8ad41a9214 Mon Sep 17 00:00:00 2001 From: Jan Blunck Date: Sun, 13 Aug 2006 23:24:19 -0700 Subject: [PATCH 142/488] [PATCH] fix hrtimer percpu usage typo The percpu variable is used incorrectly in switch_hrtimer_base(). Signed-off-by: Jan Blunck Acked-by: Thomas Gleixner Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- kernel/hrtimer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c index be989efc7856..21c38a7e666b 100644 --- a/kernel/hrtimer.c +++ b/kernel/hrtimer.c @@ -187,7 +187,7 @@ switch_hrtimer_base(struct hrtimer *timer, struct hrtimer_base *base) { struct hrtimer_base *new_base; - new_base = &__get_cpu_var(hrtimer_bases[base->index]); + new_base = &__get_cpu_var(hrtimer_bases)[base->index]; if (base != new_base) { /* From 657b3010d8f8a72195dfcbe63040127d596f0b14 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Sun, 13 Aug 2006 23:24:19 -0700 Subject: [PATCH 143/488] [PATCH] panic.c build fix kernel/panic.c: In function 'add_taint': kernel/panic.c:176: warning: implicit declaration of function 'debug_locks_off' Cc: Andi Kleen Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- kernel/panic.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/panic.c b/kernel/panic.c index d8a0bca21233..9b8dcfd1ca93 100644 --- a/kernel/panic.c +++ b/kernel/panic.c @@ -18,6 +18,7 @@ #include #include #include +#include int panic_on_oops; int tainted; From 485311a23c72c87332f9a55ce25e650e40ae3fc7 Mon Sep 17 00:00:00 2001 From: Michal Miroslaw Date: Sun, 13 Aug 2006 23:24:20 -0700 Subject: [PATCH 144/488] [PATCH] dm: BUG/OOPS fix Fix BUG I tripped on while testing failover and multipathing. BUG shows up on error path in multipath_ctr() when parse_priority_group() fails after returning at least once without error. The fix is to initialize m->ti early - just after alloc()ing it. BUG: unable to handle kernel NULL pointer dereference at virtual address 00000000 printing eip: c027c3d2 *pde = 00000000 Oops: 0000 [#3] Modules linked in: qla2xxx ext3 jbd mbcache sg ide_cd cdrom floppy CPU: 0 EIP: 0060:[] Not tainted VLI EFLAGS: 00010202 (2.6.17.3 #1) EIP is at dm_put_device+0xf/0x3b eax: 00000001 ebx: ee4fcac0 ecx: 00000000 edx: ee4fcac0 esi: ee4fc4e0 edi: ee4fc4e0 ebp: 00000000 esp: c5db3e78 ds: 007b es: 007b ss: 0068 Process multipathd (pid: 15912, threadinfo=c5db2000 task=ef485a90) Stack: ec4eda40 c02816bd ee4fc4c0 00000000 f7e89498 f883e0bc c02816f6 f7e89480 f7e8948c c0281801 ffffffea f7e89480 f883e080 c0281ffe 00000001 00000000 00000004 dfe9cab8 f7a693c0 f883e080 f883e0c0 ca4b99c0 c027c6ee 01400000 Call Trace: free_pgpaths+0x31/0x45 free_priority_group+0x25/0x2e free_multipath+0x35/0x67 multipath_ctr+0x123/0x12d dm_table_add_target+0x11e/0x18b populate_table+0x8a/0xaf table_load+0x52/0xf9 ctl_ioctl+0xca/0xfc table_load+0x0/0xf9 do_ioctl+0x3e/0x43 vfs_ioctl+0x16c/0x178 sys_ioctl+0x48/0x60 syscall_call+0x7/0xb Code: 97 f0 00 00 00 89 c1 83 c9 01 80 e2 01 0f 44 c1 88 43 14 8b 04 24 59 5b 5e 5f 5d c3 53 89 c1 89 d3 ff 4a 08 0f 94 c0 84 c0 74 2a <8b> 01 8b 10 89 d8 e8 f6 fb ff ff 8b 03 8b 53 04 89 50 04 89 02 EIP: [] dm_put_device+0xf/0x3b SS:ESP 0068:c5db3e78 Signed-off-by: Michal Miroslaw Acked-by: Alasdair G Kergon Cc: Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- drivers/md/dm-mpath.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c index 217615b33223..93f701ea87bc 100644 --- a/drivers/md/dm-mpath.c +++ b/drivers/md/dm-mpath.c @@ -710,6 +710,8 @@ static int multipath_ctr(struct dm_target *ti, unsigned int argc, return -EINVAL; } + m->ti = ti; + r = parse_features(&as, m, ti); if (r) goto bad; @@ -751,7 +753,6 @@ static int multipath_ctr(struct dm_target *ti, unsigned int argc, } ti->private = m; - m->ti = ti; return 0; From 012c437d03cb299814e58ac8d574f7510f5989a5 Mon Sep 17 00:00:00 2001 From: Horms Date: Sun, 13 Aug 2006 23:24:22 -0700 Subject: [PATCH 145/488] [PATCH] Change panic_on_oops message to "Fatal exception" Previously the message was "Fatal exception: panic_on_oops", as introduced in a recent patch whith removed a somewhat dangerous call to ssleep() in the panic_on_oops path. However, Paul Mackerras suggested that this was somewhat confusing, leadind people to believe that it was panic_on_oops that was the root cause of the fatal exception. On his suggestion, this patch changes the message to simply "Fatal exception". A suitable oops message should already have been displayed. Signed-off-by: Simon Horman Cc: Paul Mackerras Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- arch/arm/kernel/traps.c | 2 +- arch/i386/kernel/traps.c | 2 +- arch/ia64/kernel/traps.c | 2 +- arch/powerpc/kernel/traps.c | 2 +- arch/x86_64/kernel/traps.c | 2 +- arch/xtensa/kernel/traps.c | 2 +- 6 files changed, 6 insertions(+), 6 deletions(-) diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c index 4e29dd03e582..aeeed806f991 100644 --- a/arch/arm/kernel/traps.c +++ b/arch/arm/kernel/traps.c @@ -233,7 +233,7 @@ NORET_TYPE void die(const char *str, struct pt_regs *regs, int err) spin_unlock_irq(&die_lock); if (panic_on_oops) - panic("Fatal exception: panic_on_oops"); + panic("Fatal exception"); do_exit(SIGSEGV); } diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c index 0d4005dc06c5..82e0fd02af1c 100644 --- a/arch/i386/kernel/traps.c +++ b/arch/i386/kernel/traps.c @@ -454,7 +454,7 @@ void die(const char * str, struct pt_regs * regs, long err) panic("Fatal exception in interrupt"); if (panic_on_oops) - panic("Fatal exception: panic_on_oops"); + panic("Fatal exception"); oops_exit(); do_exit(SIGSEGV); diff --git a/arch/ia64/kernel/traps.c b/arch/ia64/kernel/traps.c index 5a0420464c6c..fffa9e0826bc 100644 --- a/arch/ia64/kernel/traps.c +++ b/arch/ia64/kernel/traps.c @@ -118,7 +118,7 @@ die (const char *str, struct pt_regs *regs, long err) spin_unlock_irq(&die.lock); if (panic_on_oops) - panic("Fatal exception: panic_on_oops"); + panic("Fatal exception"); do_exit(SIGSEGV); } diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index 2105767fcc57..05682a24b210 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -151,7 +151,7 @@ int die(const char *str, struct pt_regs *regs, long err) panic("Fatal exception in interrupt"); if (panic_on_oops) - panic("Fatal exception: panic_on_oops"); + panic("Fatal exception"); do_exit(err); diff --git a/arch/x86_64/kernel/traps.c b/arch/x86_64/kernel/traps.c index 4e9938dee060..14052f089814 100644 --- a/arch/x86_64/kernel/traps.c +++ b/arch/x86_64/kernel/traps.c @@ -529,7 +529,7 @@ void __kprobes oops_end(unsigned long flags) /* Nest count reaches zero, release the lock. */ spin_unlock_irqrestore(&die_lock, flags); if (panic_on_oops) - panic("Fatal exception: panic_on_oops"); + panic("Fatal exception"); } void __kprobes __die(const char * str, struct pt_regs * regs, long err) diff --git a/arch/xtensa/kernel/traps.c b/arch/xtensa/kernel/traps.c index 9734960a2451..ce077d6bf3a0 100644 --- a/arch/xtensa/kernel/traps.c +++ b/arch/xtensa/kernel/traps.c @@ -488,7 +488,7 @@ void die(const char * str, struct pt_regs * regs, long err) panic("Fatal exception in interrupt"); if (panic_on_oops) - panic("Fatal exception: panic_on_oops"); + panic("Fatal exception"); do_exit(err); } From 6997a6faaa129a1c91775f7344c8d371a05178ea Mon Sep 17 00:00:00 2001 From: Kirill Korotaev Date: Sun, 13 Aug 2006 23:24:23 -0700 Subject: [PATCH 146/488] [PATCH] sys_getppid oopses on debug kernel sys_getppid() optimization can access a freed memory. On kernels with DEBUG_SLAB turned ON, this results in Oops. As Dave Hansen noted, this optimization is also unsafe for memory hotplug. So this patch always takes the lock to be safe. [oleg@tv-sign.ru: simplifications] Signed-off-by: Kirill Korotaev Cc: Cc: Dave Hansen Signed-off-by: Oleg Nesterov Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- kernel/timer.c | 41 +++++++---------------------------------- 1 file changed, 7 insertions(+), 34 deletions(-) diff --git a/kernel/timer.c b/kernel/timer.c index b650f04888ed..1d7dd6267c2d 100644 --- a/kernel/timer.c +++ b/kernel/timer.c @@ -1324,46 +1324,19 @@ asmlinkage long sys_getpid(void) } /* - * Accessing ->group_leader->real_parent is not SMP-safe, it could - * change from under us. However, rather than getting any lock - * we can use an optimistic algorithm: get the parent - * pid, and go back and check that the parent is still - * the same. If it has changed (which is extremely unlikely - * indeed), we just try again.. - * - * NOTE! This depends on the fact that even if we _do_ - * get an old value of "parent", we can happily dereference - * the pointer (it was and remains a dereferencable kernel pointer - * no matter what): we just can't necessarily trust the result - * until we know that the parent pointer is valid. - * - * NOTE2: ->group_leader never changes from under us. + * Accessing ->real_parent is not SMP-safe, it could + * change from under us. However, we can use a stale + * value of ->real_parent under rcu_read_lock(), see + * release_task()->call_rcu(delayed_put_task_struct). */ asmlinkage long sys_getppid(void) { int pid; - struct task_struct *me = current; - struct task_struct *parent; - parent = me->group_leader->real_parent; - for (;;) { - pid = parent->tgid; -#if defined(CONFIG_SMP) || defined(CONFIG_PREEMPT) -{ - struct task_struct *old = parent; + rcu_read_lock(); + pid = rcu_dereference(current->real_parent)->tgid; + rcu_read_unlock(); - /* - * Make sure we read the pid before re-reading the - * parent pointer: - */ - smp_rmb(); - parent = me->group_leader->real_parent; - if (old != parent) - continue; -} -#endif - break; - } return pid; } From e579dcbf23604cb33c08b5c3c3ac06ca36e7c683 Mon Sep 17 00:00:00 2001 From: john stultz Date: Sun, 13 Aug 2006 23:24:24 -0700 Subject: [PATCH 147/488] [PATCH] futex_handle_fault always fails We found this issue last week w/ the -RT kernel, but it seems the same issue is in mainline as well. Basically it is possible for futex_unlock_pi to return without actually freeing the lock. This is due to buggy logic in the use of futex_handle_fault() and its attempt argument in a failure case. Looking at futex.c the logic is as follows: 1) In futex_unlock_pi() we start w/ ret=0 and we go down to the first futex_atomic_cmpxchg_inatomic(), where we find uval==-EFAULT. We then jump to the pi_faulted label. 2) From pi_faulted: We increment attempt, unlock the sem and hit the retry label. 3) From the retry label, with ret still zero, we again hit EFAULT on the first futex_atomic_cmpxchg_inatomic(), and again goto the pi_faulted label. 4) Again from pi_faulted: we increment attempt and enter the conditional, where we call futex_handle_fault. 5) futex_handle_fault fails, and we goto the out_unlock_release_sem label. 6) From out_unlock_release_sem we return, and since ret is still zero, we return without error, while never actually unlocking the lock. Issue #1: at the first futex_atomic_cmpxchg_inatomic() we should probably be setting ret=-EFAULT before jumping to pi_faulted: However in our case this doesn't really affect anything, as the glibc we're using ignores the error value from futex_unlock_pi(). Issue #2: Look at futex_handle_fault(), its first conditional will return -EFAULT if attempt is >= 2. However, from the "if(attempt++) futex_handle_fault(attempt)" logic above, we'll *never* call futex_handle_fault when attempt is less then two. So we never get a chance to even try to fault the page in. The following patch addresses these two issues by 1) Always setting ret to -EFAULT if futex_handle_fault fails, and 2) Removing the = in futex_handle_fault's (attempt >= 2) check. I'm really not sure this is the right fix, but wanted to bring it up so folks knew the issue is alive and well in the current -git tree. From looking at the git logs the logic was first introduced (then later copied to other places) in the following commit almost a year ago: http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=4732efbeb997189d9f9b04708dc26bf8613ed721;hp=5b039e681b8c5f30aac9cc04385cc94be45d0823 Cc: Rusty Russell Cc: Ingo Molnar Acked-by: Thomas Gleixner Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- kernel/futex.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) diff --git a/kernel/futex.c b/kernel/futex.c index c2b2e0b83abf..d4633c588f33 100644 --- a/kernel/futex.c +++ b/kernel/futex.c @@ -297,7 +297,7 @@ static int futex_handle_fault(unsigned long address, int attempt) struct vm_area_struct * vma; struct mm_struct *mm = current->mm; - if (attempt >= 2 || !(vma = find_vma(mm, address)) || + if (attempt > 2 || !(vma = find_vma(mm, address)) || vma->vm_start > address || !(vma->vm_flags & VM_WRITE)) return -EFAULT; @@ -747,8 +747,10 @@ retry: */ if (attempt++) { if (futex_handle_fault((unsigned long)uaddr2, - attempt)) + attempt)) { + ret = -EFAULT; goto out; + } goto retry; } @@ -1322,9 +1324,10 @@ static int do_futex_lock_pi(u32 __user *uaddr, int detect, int trylock, * still holding the mmap_sem. */ if (attempt++) { - if (futex_handle_fault((unsigned long)uaddr, attempt)) + if (futex_handle_fault((unsigned long)uaddr, attempt)) { + ret = -EFAULT; goto out_unlock_release_sem; - + } goto retry_locked; } @@ -1506,9 +1509,10 @@ pi_faulted: * still holding the mmap_sem. */ if (attempt++) { - if (futex_handle_fault((unsigned long)uaddr, attempt)) + if (futex_handle_fault((unsigned long)uaddr, attempt)) { + ret = -EFAULT; goto out_unlock; - + } goto retry_locked; } From 2b25742556b1a351ce4821f6feddcba23bdd930b Mon Sep 17 00:00:00 2001 From: Michal Januszewski Date: Sun, 13 Aug 2006 23:24:26 -0700 Subject: [PATCH 148/488] [PATCH] fbdev: include backlight.h only when __KERNEL__ is defined linux/backlight.h pulls in header files (eg. ioport.h) that break compilation of userspace programs. To solve the problem, only include backlight.h in fb.h if compiling kernel stuff. Signed-off-by: Michal Januszewski Cc: "Antonino A. Daplas" Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- include/linux/fb.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/fb.h b/include/linux/fb.h index 4ad0673b1995..2f335e966011 100644 --- a/include/linux/fb.h +++ b/include/linux/fb.h @@ -1,7 +1,6 @@ #ifndef _LINUX_FB_H #define _LINUX_FB_H -#include #include /* Definitions of frame buffers */ @@ -381,6 +380,7 @@ struct fb_cursor { #include #include #include +#include #include struct vm_area_struct; From 9b41ea7289a589993d3daabc61f999b4147872c4 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Sun, 13 Aug 2006 23:24:26 -0700 Subject: [PATCH 149/488] [PATCH] workqueue: remove lock_cpu_hotplug() Use a private lock instead. It protects all per-cpu data structures in workqueue.c, including the workqueues list. Fix a bug in schedule_on_each_cpu(): it was forgetting to lock down the per-cpu resources. Unfixed long-standing bug: if someone unplugs the CPU identified by `singlethread_cpu' the kernel will get very sick. Cc: Dave Jones Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- kernel/workqueue.c | 33 +++++++++++++++++++++------------ 1 file changed, 21 insertions(+), 12 deletions(-) diff --git a/kernel/workqueue.c b/kernel/workqueue.c index 448e8f7b342d..835fe28b87a8 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -68,7 +68,7 @@ struct workqueue_struct { /* All the per-cpu workqueues on the system, for hotplug cpu to add/remove threads to each one as cpus come/go. */ -static DEFINE_SPINLOCK(workqueue_lock); +static DEFINE_MUTEX(workqueue_mutex); static LIST_HEAD(workqueues); static int singlethread_cpu; @@ -320,10 +320,10 @@ void fastcall flush_workqueue(struct workqueue_struct *wq) } else { int cpu; - lock_cpu_hotplug(); + mutex_lock(&workqueue_mutex); for_each_online_cpu(cpu) flush_cpu_workqueue(per_cpu_ptr(wq->cpu_wq, cpu)); - unlock_cpu_hotplug(); + mutex_unlock(&workqueue_mutex); } } EXPORT_SYMBOL_GPL(flush_workqueue); @@ -371,8 +371,7 @@ struct workqueue_struct *__create_workqueue(const char *name, } wq->name = name; - /* We don't need the distraction of CPUs appearing and vanishing. */ - lock_cpu_hotplug(); + mutex_lock(&workqueue_mutex); if (singlethread) { INIT_LIST_HEAD(&wq->list); p = create_workqueue_thread(wq, singlethread_cpu); @@ -381,9 +380,7 @@ struct workqueue_struct *__create_workqueue(const char *name, else wake_up_process(p); } else { - spin_lock(&workqueue_lock); list_add(&wq->list, &workqueues); - spin_unlock(&workqueue_lock); for_each_online_cpu(cpu) { p = create_workqueue_thread(wq, cpu); if (p) { @@ -393,7 +390,7 @@ struct workqueue_struct *__create_workqueue(const char *name, destroy = 1; } } - unlock_cpu_hotplug(); + mutex_unlock(&workqueue_mutex); /* * Was there any error during startup? If yes then clean up: @@ -434,17 +431,15 @@ void destroy_workqueue(struct workqueue_struct *wq) flush_workqueue(wq); /* We don't need the distraction of CPUs appearing and vanishing. */ - lock_cpu_hotplug(); + mutex_lock(&workqueue_mutex); if (is_single_threaded(wq)) cleanup_workqueue_thread(wq, singlethread_cpu); else { for_each_online_cpu(cpu) cleanup_workqueue_thread(wq, cpu); - spin_lock(&workqueue_lock); list_del(&wq->list); - spin_unlock(&workqueue_lock); } - unlock_cpu_hotplug(); + mutex_unlock(&workqueue_mutex); free_percpu(wq->cpu_wq); kfree(wq); } @@ -515,11 +510,13 @@ int schedule_on_each_cpu(void (*func)(void *info), void *info) if (!works) return -ENOMEM; + mutex_lock(&workqueue_mutex); for_each_online_cpu(cpu) { INIT_WORK(per_cpu_ptr(works, cpu), func, info); __queue_work(per_cpu_ptr(keventd_wq->cpu_wq, cpu), per_cpu_ptr(works, cpu)); } + mutex_unlock(&workqueue_mutex); flush_workqueue(keventd_wq); free_percpu(works); return 0; @@ -635,6 +632,7 @@ static int __devinit workqueue_cpu_callback(struct notifier_block *nfb, switch (action) { case CPU_UP_PREPARE: + mutex_lock(&workqueue_mutex); /* Create a new workqueue thread for it. */ list_for_each_entry(wq, &workqueues, list) { if (!create_workqueue_thread(wq, hotcpu)) { @@ -653,6 +651,7 @@ static int __devinit workqueue_cpu_callback(struct notifier_block *nfb, kthread_bind(cwq->thread, hotcpu); wake_up_process(cwq->thread); } + mutex_unlock(&workqueue_mutex); break; case CPU_UP_CANCELED: @@ -664,6 +663,15 @@ static int __devinit workqueue_cpu_callback(struct notifier_block *nfb, any_online_cpu(cpu_online_map)); cleanup_workqueue_thread(wq, hotcpu); } + mutex_unlock(&workqueue_mutex); + break; + + case CPU_DOWN_PREPARE: + mutex_lock(&workqueue_mutex); + break; + + case CPU_DOWN_FAILED: + mutex_unlock(&workqueue_mutex); break; case CPU_DEAD: @@ -671,6 +679,7 @@ static int __devinit workqueue_cpu_callback(struct notifier_block *nfb, cleanup_workqueue_thread(wq, hotcpu); list_for_each_entry(wq, &workqueues, list) take_over_work(wq, hotcpu); + mutex_unlock(&workqueue_mutex); break; } From 1d7ea7324ae7a59f8e17e4ba76a2707c1e6f24d2 Mon Sep 17 00:00:00 2001 From: Alexander Zarochentsev Date: Sun, 13 Aug 2006 23:24:27 -0700 Subject: [PATCH 150/488] [PATCH] fuse: fix error case in fuse_readpages Don't let fuse_readpages leave the @pages list not empty when exiting on error. [akpm@osdl.org: kernel-doc fixes] Signed-off-by: Alexander Zarochentsev Signed-off-by: Miklos Szeredi Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- fs/fuse/file.c | 10 ++++++++-- include/linux/mm.h | 1 + mm/swap.c | 20 ++++++++++++++++++++ 3 files changed, 29 insertions(+), 2 deletions(-) diff --git a/fs/fuse/file.c b/fs/fuse/file.c index 63614ed16336..5c4fcd1dbf59 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -395,14 +395,16 @@ static int fuse_readpages(struct file *file, struct address_space *mapping, struct fuse_readpages_data data; int err; + err = -EIO; if (is_bad_inode(inode)) - return -EIO; + goto clean_pages_up; data.file = file; data.inode = inode; data.req = fuse_get_req(fc); + err = PTR_ERR(data.req); if (IS_ERR(data.req)) - return PTR_ERR(data.req); + goto clean_pages_up; err = read_cache_pages(mapping, pages, fuse_readpages_fill, &data); if (!err) { @@ -412,6 +414,10 @@ static int fuse_readpages(struct file *file, struct address_space *mapping, fuse_put_request(fc, data.req); } return err; + +clean_pages_up: + put_pages_list(pages); + return err; } static size_t fuse_send_write(struct fuse_req *req, struct file *file, diff --git a/include/linux/mm.h b/include/linux/mm.h index 990957e0929f..f0b135cd86da 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -336,6 +336,7 @@ static inline void init_page_count(struct page *page) } void put_page(struct page *page); +void put_pages_list(struct list_head *pages); void split_page(struct page *page, unsigned int order); diff --git a/mm/swap.c b/mm/swap.c index 8fd095c4ae51..687686a61f7c 100644 --- a/mm/swap.c +++ b/mm/swap.c @@ -54,6 +54,26 @@ void put_page(struct page *page) } EXPORT_SYMBOL(put_page); +/** + * put_pages_list(): release a list of pages + * + * Release a list of pages which are strung together on page.lru. Currently + * used by read_cache_pages() and related error recovery code. + * + * @pages: list of pages threaded on page->lru + */ +void put_pages_list(struct list_head *pages) +{ + while (!list_empty(pages)) { + struct page *victim; + + victim = list_entry(pages->prev, struct page, lru); + list_del(&victim->lru); + page_cache_release(victim); + } +} +EXPORT_SYMBOL(put_pages_list); + /* * Writeback is about to end against a page which has been marked for immediate * reclaim. If it still appears to be reclaimable, move it to the tail of the From 74361cb6828398a96167b3234e186fbd731e5f30 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Mon, 14 Aug 2006 08:54:48 -0700 Subject: [PATCH 151/488] [PATCH] fcntl(F_SETSIG) fix fcntl(F_SETSIG) no longer works on leases because lease_release_private_callback() gets called as the lease is copied in order to initialise it. The problem is that lease_alloc() performs an unnecessary initialisation, which sets the lease_manager_ops. Avoid the problem by allocating the target lease structure using locks_alloc_lock(). Signed-off-by: Trond Myklebust Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- fs/locks.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/fs/locks.c b/fs/locks.c index b0b41a64e10b..d7c53392cac1 100644 --- a/fs/locks.c +++ b/fs/locks.c @@ -1421,8 +1421,9 @@ static int __setlease(struct file *filp, long arg, struct file_lock **flp) if (!leases_enable) goto out; - error = lease_alloc(filp, arg, &fl); - if (error) + error = -ENOMEM; + fl = locks_alloc_lock(); + if (fl == NULL) goto out; locks_copy_lock(fl, lease); @@ -1430,6 +1431,7 @@ static int __setlease(struct file *filp, long arg, struct file_lock **flp) locks_insert_lock(before, fl); *flp = fl; + error = 0; out: return error; } From 2621e2a155140b01c6ff57b3863cda2922c2c8bd Mon Sep 17 00:00:00 2001 From: Matt LaPlante Date: Wed, 5 Jul 2006 01:20:51 +0000 Subject: [PATCH 152/488] [WATCHDOG] Kconfig typos fix. Three typos in drivers/char/watchdog/Kconfig... Signed-off-by: Matt LaPlante Signed-off-by: Wim Van Sebroeck --- drivers/char/watchdog/Kconfig | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/char/watchdog/Kconfig b/drivers/char/watchdog/Kconfig index d53f664a4dd8..fff89c2d88fd 100644 --- a/drivers/char/watchdog/Kconfig +++ b/drivers/char/watchdog/Kconfig @@ -45,7 +45,7 @@ config WATCHDOG_NOWAYOUT comment "Watchdog Device Drivers" depends on WATCHDOG -# Architecture Independant +# Architecture Independent config SOFT_WATCHDOG tristate "Software watchdog" @@ -127,7 +127,7 @@ config S3C2410_WATCHDOG enabled. The driver is limited by the speed of the system's PCLK - signal, so with reasonbaly fast systems (PCLK around 50-66MHz) + signal, so with reasonably fast systems (PCLK around 50-66MHz) then watchdog intervals of over approximately 20seconds are unavailable. @@ -423,7 +423,7 @@ config SBC_EPX_C3_WATCHDOG is no way to know if writing to its IO address will corrupt your system or have any real effect. The only way to be sure that this driver does what you want is to make sure you - are runnning it on an EPX-C3 from Winsystems with the watchdog + are running it on an EPX-C3 from Winsystems with the watchdog timer at IO address 0x1ee and 0x1ef. It will write to both those IO ports. Basically, the assumption is made that if you compile this driver into your kernel and/or load it as a module, that you @@ -472,7 +472,7 @@ config INDYDOG tristate "Indy/I2 Hardware Watchdog" depends on WATCHDOG && SGI_IP22 help - Hardwaredriver for the Indy's/I2's watchdog. This is a + Hardware driver for the Indy's/I2's watchdog. This is a watchdog timer that will reboot the machine after a 60 second timer expired and no process has written to /dev/watchdog during that time. From e466e4876bf39474e15d0572f2204578137ae7f5 Mon Sep 17 00:00:00 2001 From: Steve French Date: Tue, 15 Aug 2006 13:07:18 +0000 Subject: [PATCH 153/488] [CIFS] Fix oops in cifs_close due to unitialized lock sem and list in new POSIX locking code Signed-off-by: Steve French --- fs/cifs/CHANGES | 5 ++++- fs/cifs/connect.c | 14 ++++++++------ fs/cifs/dir.c | 4 ++++ 3 files changed, 16 insertions(+), 7 deletions(-) diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES index acb843b9bc3b..bd37727526ea 100644 --- a/fs/cifs/CHANGES +++ b/fs/cifs/CHANGES @@ -2,7 +2,10 @@ Version 1.45 ------------ Do not time out lockw calls when using posix extensions. Do not time out requests if server still responding reasonably fast -on requests on other threads +on requests on other threads. Improve POSIX locking emulation, +(lock cancel now works, and unlock of merged range works even +to Windows servers now). Fix oops on mount to lanman servers +(win9x, os/2 etc.) when null password. Version 1.44 ------------ diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index b706b4f48b10..5d394c726860 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -1271,33 +1271,35 @@ find_unc(__be32 new_target_ip_addr, char *uncName, char *userName) read_lock(&GlobalSMBSeslock); list_for_each(tmp, &GlobalTreeConnectionList) { - cFYI(1, ("Next tcon - ")); + cFYI(1, ("Next tcon")); tcon = list_entry(tmp, struct cifsTconInfo, cifsConnectionList); if (tcon->ses) { if (tcon->ses->server) { cFYI(1, - (" old ip addr: %x == new ip %x ?", + ("old ip addr: %x == new ip %x ?", tcon->ses->server->addr.sockAddr.sin_addr. s_addr, new_target_ip_addr)); if (tcon->ses->server->addr.sockAddr.sin_addr. s_addr == new_target_ip_addr) { - /* BB lock tcon and server and tcp session and increment use count here? */ + /* BB lock tcon, server and tcp session and increment use count here? */ /* found a match on the TCP session */ /* BB check if reconnection needed */ - cFYI(1,("Matched ip, old UNC: %s == new: %s ?", + cFYI(1,("IP match, old UNC: %s new: %s", tcon->treeName, uncName)); if (strncmp (tcon->treeName, uncName, MAX_TREE_SIZE) == 0) { cFYI(1, - ("Matched UNC, old user: %s == new: %s ?", + ("and old usr: %s new: %s", tcon->treeName, uncName)); if (strncmp (tcon->ses->userName, userName, MAX_USERNAME_SIZE) == 0) { read_unlock(&GlobalSMBSeslock); - return tcon;/* also matched user (smb session)*/ + /* matched smb session + (user name */ + return tcon; } } } diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c index ba4cbe9b0684..914239d53634 100644 --- a/fs/cifs/dir.c +++ b/fs/cifs/dir.c @@ -267,6 +267,10 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode, pCifsFile->invalidHandle = FALSE; pCifsFile->closePend = FALSE; init_MUTEX(&pCifsFile->fh_sem); + init_MUTEX(&pCifsFile->lock_sem); + INIT_LIST_HEAD(&pCifsFile->llist); + atomic_set(&pCifsFile->wrtPending,0); + /* set the following in open now pCifsFile->pfile = file; */ write_lock(&GlobalSMBSeslock); From 5ddaa683a513439081c9511b0d9ad490672c51c9 Mon Sep 17 00:00:00 2001 From: Steve French Date: Tue, 15 Aug 2006 13:35:48 +0000 Subject: [PATCH 154/488] [CIFS] endian errors in lanman protocol support le16 compared to host-endian constant u8 fed to le32_to_cpu() le16 compared to host-endian constant Signed-off-by: Al Viro Signed-off-by: Steve French --- fs/cifs/cifssmb.c | 2 +- fs/cifs/readdir.c | 2 +- fs/cifs/sess.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index dcbc3e075e81..075d8fb3d376 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -477,7 +477,7 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) /* BB get server time for time conversions and add code to use it and timezone since this is not UTC */ - if (rsp->EncryptionKeyLength == CIFS_CRYPTO_KEY_SIZE) { + if (rsp->EncryptionKeyLength == cpu_to_le16(CIFS_CRYPTO_KEY_SIZE)) { memcpy(server->cryptKey, rsp->EncryptionKey, CIFS_CRYPTO_KEY_SIZE); } else if (server->secMode & SECMODE_PW_ENCRYPT) { diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c index 03bbcb377913..105761e3ba0e 100644 --- a/fs/cifs/readdir.c +++ b/fs/cifs/readdir.c @@ -556,7 +556,7 @@ static int cifs_entry_is_dot(char *current_entry, struct cifsFileInfo *cfile) FIND_FILE_STANDARD_INFO * pFindData = (FIND_FILE_STANDARD_INFO *)current_entry; filename = &pFindData->FileName[0]; - len = le32_to_cpu(pFindData->FileNameLength); + len = pFindData->FileNameLength; } else { cFYI(1,("Unknown findfirst level %d",cfile->srch_inf.info_level)); } diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c index 7202d534ef0b..d1705ab8136e 100644 --- a/fs/cifs/sess.c +++ b/fs/cifs/sess.c @@ -372,7 +372,7 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, /* no capabilities flags in old lanman negotiation */ - pSMB->old_req.PasswordLength = CIFS_SESS_KEY_SIZE; + pSMB->old_req.PasswordLength = cpu_to_le16(CIFS_SESS_KEY_SIZE); /* BB calculate hash with password */ /* and copy into bcc */ From e0e92632715f08dddeddb72b76e04c20126e1f67 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Tue, 15 Aug 2006 12:09:27 +0200 Subject: [PATCH 155/488] [PATCH] PATCH: 1 line 2.6.18 bugfix: modpost-64bit-fix.patch There is a small but annoying bug in scripts/mod/file2alias.c which causes it to generate invalid aliases for input devices on 64 bit archs. This causes joydev.ko to not be automaticly loaded when inserting a joystick, resulting in a non working joystick (for the average user). In scripts/mod/file2alias.c is the following code for generating the input aliases: static void do_input(char *alias, kernel_ulong_t *arr, unsigned int min, unsigned int max) { unsigned int i; for (i = min; i < max; i++) if (arr[i / BITS_PER_LONG] & (1 << (i%BITS_PER_LONG))) sprintf(alias + strlen(alias), "%X,*", i); } On 32 bits systems, this correctly generates "0,*" for the first alias, "8,*" for the second etc. However on 64 bits it generates: "0,*20,*" resp "8,*28,*" Notice how it adds 20 + first entry (hex) ! to the list of hex codes, which is 32 more then the first entry, thus is because the bit test above wraps at 32 bits instead of 64. scripts/mod/file2alias.c, line 379 reads: if (arr[i / BITS_PER_LONG] & (1 << (i%BITS_PER_LONG))) That should be: if (arr[i / BITS_PER_LONG] & (1L << (i%BITS_PER_LONG))) Notice the added 'L' after the 1, otherwise that is an 32 bit int instead of a 64 bit long, and when that int gets shifted >= 32 times, appearantly the number by which to shift is wrapped at 5 bits ( % 32) causing it to test a bit 32 bits too low. The patch below makes the nescesarry 1 char change :) Signed-off-by: Hans de Goede Acked-by: Rusty Russell Signed-off-by: Greg Kroah-Hartman --- scripts/mod/file2alias.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c index 44312926b849..e2de650d3dbf 100644 --- a/scripts/mod/file2alias.c +++ b/scripts/mod/file2alias.c @@ -391,7 +391,7 @@ static void do_input(char *alias, unsigned int i; for (i = min; i < max; i++) - if (arr[i / BITS_PER_LONG] & (1 << (i%BITS_PER_LONG))) + if (arr[i / BITS_PER_LONG] & (1L << (i%BITS_PER_LONG))) sprintf(alias + strlen(alias), "%X,*", i); } From 4d8316d5ea4dcf0bf15d8a06d539ed7c99e9cfbe Mon Sep 17 00:00:00 2001 From: Pavel Machek Date: Mon, 14 Aug 2006 22:37:22 -0700 Subject: [PATCH 156/488] ACPI: fix boot with acpi=off Fix acpi_ac/battery boot with acpi=off Signed-off-by: Pavel Machek Signed-off-by: Andrew Morton Signed-off-by: Len Brown --- drivers/acpi/ac.c | 2 ++ drivers/acpi/battery.c | 3 +++ 2 files changed, 5 insertions(+) diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c index 96309b9660da..11abc7bf777e 100644 --- a/drivers/acpi/ac.c +++ b/drivers/acpi/ac.c @@ -285,6 +285,8 @@ static int __init acpi_ac_init(void) { int result; + if (acpi_disabled) + return -ENODEV; acpi_ac_dir = acpi_lock_ac_dir(); if (!acpi_ac_dir) diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index 6e5221707d97..9810e2a55d0a 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -757,6 +757,9 @@ static int __init acpi_battery_init(void) { int result; + if (acpi_disabled) + return -ENODEV; + acpi_battery_dir = acpi_lock_battery_dir(); if (!acpi_battery_dir) return -ENODEV; From b20d2aeb0ad322cbe7fd9120acae6118231b17a3 Mon Sep 17 00:00:00 2001 From: Len Brown Date: Tue, 15 Aug 2006 23:21:37 -0400 Subject: [PATCH 157/488] ACPI: skip smart battery init when acpi=off Signed-off-by: Len Brown --- drivers/acpi/sbs.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c index db7b350a5035..62bef0b3b614 100644 --- a/drivers/acpi/sbs.c +++ b/drivers/acpi/sbs.c @@ -1714,6 +1714,9 @@ static int __init acpi_sbs_init(void) { int result = 0; + if (acpi_disabled) + return -ENODEV; + init_MUTEX(&sbs_sem); if (capacity_mode != DEF_CAPACITY_UNIT From 7daef60721e03809c7e5f8aa8491df4190f6b56f Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Mon, 14 Aug 2006 22:37:24 -0700 Subject: [PATCH 158/488] ACPI: add message if firmware_register() init fails Signed-off-by: Randy Dunlap Signed-off-by: Andrew Morton Signed-off-by: Len Brown --- drivers/acpi/bus.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index b2977695e120..7b77ee146a80 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -25,6 +25,7 @@ #include #include #include +#include #include #include #include @@ -738,7 +739,10 @@ static int __init acpi_init(void) return -ENODEV; } - firmware_register(&acpi_subsys); + result = firmware_register(&acpi_subsys); + if (result < 0) + printk(KERN_WARNING "%s: firmware_register error: %d\n", + __FUNCTION__, result); result = acpi_bus_init(); From e9a315bcae3b9e0c54fb68ef90d0095956314480 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Mon, 14 Aug 2006 22:37:24 -0700 Subject: [PATCH 159/488] ACPI: verbose on kset/kobject_register errors Signed-off-by: Randy Dunlap Signed-off-by: Andrew Morton Signed-off-by: Len Brown --- drivers/acpi/scan.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 5fcb50c7b778..698a1540e303 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -4,6 +4,7 @@ #include #include +#include #include #include @@ -113,6 +114,8 @@ static struct kset acpi_namespace_kset = { static void acpi_device_register(struct acpi_device *device, struct acpi_device *parent) { + int err; + /* * Linkage * ------- @@ -138,7 +141,10 @@ static void acpi_device_register(struct acpi_device *device, device->kobj.parent = &parent->kobj; device->kobj.ktype = &ktype_acpi_ns; device->kobj.kset = &acpi_namespace_kset; - kobject_register(&device->kobj); + err = kobject_register(&device->kobj); + if (err < 0) + printk(KERN_WARNING "%s: kobject_register error: %d\n", + __FUNCTION__, err); create_sysfs_device_files(device); } @@ -1450,7 +1456,9 @@ static int __init acpi_scan_init(void) if (acpi_disabled) return 0; - kset_register(&acpi_namespace_kset); + result = kset_register(&acpi_namespace_kset); + if (result < 0) + printk(KERN_ERR PREFIX "kset_register error: %d\n", result); result = bus_register(&acpi_bus_type); if (result) { From 07dd4855e7fffeb50565826e5e736509ee8f6129 Mon Sep 17 00:00:00 2001 From: Yasunori Goto Date: Mon, 14 Aug 2006 22:37:32 -0700 Subject: [PATCH 160/488] ACPI: memory hotplug: remove useless message at boot time This is to remove noisy useless message at boot. The message is a ton of "ACPI Exception (acpi_memory-0492): AE_ERROR, handle is no memory device" In my emulation, number of memory devices are not so many (only 6), but, this messages are displayed 114 times. It is showed by acpi_memory_register_notify_handler() which is called by acpi_walk_namespace(). acpi_walk_namespace() parses all of ACPI's namespace and execute acpi_memory_register_notify_handler(). So, it is called for all of the device which is defined in namespace. If the parsing device is not memory, acpi_memhotplug ignores it due to "no match" and will parse next device. This is normal route, not an exception. Signed-off-by: Yasunori Goto Signed-off-by: Andrew Morton Signed-off-by: Len Brown --- drivers/acpi/acpi_memhotplug.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c index b0d4b147b19e..1dda370f402b 100644 --- a/drivers/acpi/acpi_memhotplug.c +++ b/drivers/acpi/acpi_memhotplug.c @@ -484,10 +484,8 @@ acpi_memory_register_notify_handler(acpi_handle handle, status = is_memory_device(handle); - if (ACPI_FAILURE(status)){ - ACPI_EXCEPTION((AE_INFO, status, "handle is no memory device")); + if (ACPI_FAILURE(status)) return AE_OK; /* continue */ - } status = acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY, acpi_memory_device_notify, NULL); @@ -503,10 +501,8 @@ acpi_memory_deregister_notify_handler(acpi_handle handle, status = is_memory_device(handle); - if (ACPI_FAILURE(status)){ - ACPI_EXCEPTION((AE_INFO, status, "handle is no memory device")); + if (ACPI_FAILURE(status)) return AE_OK; /* continue */ - } status = acpi_remove_notify_handler(handle, ACPI_SYSTEM_NOTIFY, From b5240b32b9b2b75917c478d768191862a2b190cc Mon Sep 17 00:00:00 2001 From: Kristen Carlson Accardi Date: Wed, 26 Jul 2006 13:32:00 -0400 Subject: [PATCH 161/488] ACPIPHP: allow acpiphp to build without ACPI_DOCK Change the build options for acpiphp so that it may build without being dependent on the ACPI_DOCK option, but yet does not allow the option of acpiphp being built-in when dock is built as a module. This does not change the previous patch for ACPI_IBM_DOCK Kconfig. For the following matrix of config options, I built an i386 kernel. Dock acpiphp should it build? confirmed y y y y y n y y y m y y m y no - acpiphp should acpiphp was convert to m converted to m m n y y m m y y n y y y n n y y n m y y Signed-off-by: Anil S Keshavamurthy Signed-off-by: Kristen Carlson Accardi Signed-off-by: Len Brown --- drivers/pci/hotplug/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pci/hotplug/Kconfig b/drivers/pci/hotplug/Kconfig index 3fae77ffb2fa..1c363d814279 100644 --- a/drivers/pci/hotplug/Kconfig +++ b/drivers/pci/hotplug/Kconfig @@ -76,7 +76,7 @@ config HOTPLUG_PCI_IBM config HOTPLUG_PCI_ACPI tristate "ACPI PCI Hotplug driver" - depends on ACPI_DOCK && HOTPLUG_PCI + depends on (!ACPI_DOCK && ACPI && HOTPLUG_PCI) || (ACPI_DOCK && HOTPLUG_PCI) help Say Y here if you have a system that supports PCI Hotplug using ACPI. From 2f6c55fc3109bcfa1bb1a112c825e07212c20f37 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 16 Aug 2006 13:49:27 +0200 Subject: [PATCH 162/488] [S390] dasd slab cache alignment. The dasd_page_cache should return page addresses and therefore the cache must be created with an alignment of PAGE_SIZE. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- drivers/s390/block/dasd_devmap.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/s390/block/dasd_devmap.c b/drivers/s390/block/dasd_devmap.c index 6fcb28d55a9d..29e48b2ab712 100644 --- a/drivers/s390/block/dasd_devmap.c +++ b/drivers/s390/block/dasd_devmap.c @@ -264,8 +264,9 @@ dasd_parse_keyword( char *parsestring ) { if (dasd_page_cache) return residual_str; dasd_page_cache = - kmem_cache_create("dasd_page_cache", PAGE_SIZE, 0, - SLAB_CACHE_DMA, NULL, NULL ); + kmem_cache_create("dasd_page_cache", PAGE_SIZE, + PAGE_SIZE, SLAB_CACHE_DMA, + NULL, NULL ); if (!dasd_page_cache) MESSAGE(KERN_WARNING, "%s", "Failed to create slab, " "fixed buffer mode disabled."); From b18a60e7c2a7f2a17dbd57885621a42d546e2f7d Mon Sep 17 00:00:00 2001 From: Peter Oberparleiter Date: Wed, 16 Aug 2006 13:49:33 +0200 Subject: [PATCH 163/488] [S390] inaccessible PAV alias devices on LPAR. In some situations PAV alias devices on LPAR are not accessible. The initialization procedure required to enable access to PAV alias devices has to be performed per storage server subsystem and not only once per storage server. Signed-off-by: Peter Oberparleiter Signed-off-by: Martin Schwidefsky --- drivers/s390/block/dasd_devmap.c | 32 ++++++++++++++++++-------------- 1 file changed, 18 insertions(+), 14 deletions(-) diff --git a/drivers/s390/block/dasd_devmap.c b/drivers/s390/block/dasd_devmap.c index 29e48b2ab712..9d0c6e1a0e66 100644 --- a/drivers/s390/block/dasd_devmap.c +++ b/drivers/s390/block/dasd_devmap.c @@ -48,18 +48,20 @@ struct dasd_devmap { }; /* - * dasd_servermap is used to store the server_id of all storage servers - * accessed by DASD device driver. + * dasd_server_ssid_map contains a globally unique storage server subsystem ID. + * dasd_server_ssid_list contains the list of all subsystem IDs accessed by + * the DASD device driver. */ -struct dasd_servermap { +struct dasd_server_ssid_map { struct list_head list; struct server_id { char vendor[4]; char serial[15]; } sid; + __u16 ssid; }; -static struct list_head dasd_serverlist; +static struct list_head dasd_server_ssid_list; /* * Parameter parsing functions for dasd= parameter. The syntax is: @@ -878,8 +880,9 @@ dasd_get_uid(struct ccw_device *cdev, struct dasd_uid *uid) /* * Register the given device unique identifier into devmap struct. - * In addition check if the related storage server is already contained in the - * dasd_serverlist. If server is not contained, create new entry. + * In addition check if the related storage server subsystem ID is already + * contained in the dasd_server_ssid_list. If subsystem ID is not contained, + * create new entry. * Return 0 if server was already in serverlist, * 1 if the server was added successful * <0 in case of error. @@ -888,26 +891,27 @@ int dasd_set_uid(struct ccw_device *cdev, struct dasd_uid *uid) { struct dasd_devmap *devmap; - struct dasd_servermap *srv, *tmp; + struct dasd_server_ssid_map *srv, *tmp; devmap = dasd_find_busid(cdev->dev.bus_id); if (IS_ERR(devmap)) return PTR_ERR(devmap); - /* generate entry for servermap */ - srv = (struct dasd_servermap *) - kzalloc(sizeof(struct dasd_servermap), GFP_KERNEL); + /* generate entry for server_ssid_map */ + srv = (struct dasd_server_ssid_map *) + kzalloc(sizeof(struct dasd_server_ssid_map), GFP_KERNEL); if (!srv) return -ENOMEM; strncpy(srv->sid.vendor, uid->vendor, sizeof(srv->sid.vendor) - 1); strncpy(srv->sid.serial, uid->serial, sizeof(srv->sid.serial) - 1); + srv->ssid = uid->ssid; /* server is already contained ? */ spin_lock(&dasd_devmap_lock); devmap->uid = *uid; - list_for_each_entry(tmp, &dasd_serverlist, list) { + list_for_each_entry(tmp, &dasd_server_ssid_list, list) { if (!memcmp(&srv->sid, &tmp->sid, - sizeof(struct dasd_servermap))) { + sizeof(struct dasd_server_ssid_map))) { kfree(srv); srv = NULL; break; @@ -916,7 +920,7 @@ dasd_set_uid(struct ccw_device *cdev, struct dasd_uid *uid) /* add servermap to serverlist */ if (srv) - list_add(&srv->list, &dasd_serverlist); + list_add(&srv->list, &dasd_server_ssid_list); spin_unlock(&dasd_devmap_lock); return (srv ? 1 : 0); @@ -987,7 +991,7 @@ dasd_devmap_init(void) INIT_LIST_HEAD(&dasd_hashlists[i]); /* Initialize servermap structure. */ - INIT_LIST_HEAD(&dasd_serverlist); + INIT_LIST_HEAD(&dasd_server_ssid_list); return 0; } From 3e03a2fcb2c031062f9bf698ce999b77cd80aec4 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 16 Aug 2006 13:49:37 +0200 Subject: [PATCH 164/488] [S390] kernel page table allocation. Don't waste DMA capable pages for identity mapping page tables. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- arch/s390/mm/init.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c index eb6ebfef134a..6e6b6de77770 100644 --- a/arch/s390/mm/init.c +++ b/arch/s390/mm/init.c @@ -129,7 +129,7 @@ void __init paging_init(void) /* * pg_table is physical at this point */ - pg_table = (pte_t *) alloc_bootmem_low_pages(PAGE_SIZE); + pg_table = (pte_t *) alloc_bootmem_pages(PAGE_SIZE); pg_dir->pgd0 = (_PAGE_TABLE | __pa(pg_table)); pg_dir->pgd1 = (_PAGE_TABLE | (__pa(pg_table)+1024)); @@ -219,7 +219,7 @@ void __init paging_init(void) continue; } - pm_dir = (pmd_t *) alloc_bootmem_low_pages(PAGE_SIZE*4); + pm_dir = (pmd_t *) alloc_bootmem_pages(PAGE_SIZE * 4); pgd_populate(&init_mm, pg_dir, pm_dir); for (j = 0 ; j < PTRS_PER_PMD ; j++,pm_dir++) { @@ -228,7 +228,7 @@ void __init paging_init(void) continue; } - pt_dir = (pte_t *) alloc_bootmem_low_pages(PAGE_SIZE); + pt_dir = (pte_t *) alloc_bootmem_pages(PAGE_SIZE); pmd_populate_kernel(&init_mm, pm_dir, pt_dir); for (k = 0 ; k < PTRS_PER_PTE ; k++,pt_dir++) { From acaea9ee460d0ba5a14f0066ba26cfa43dd5fdf3 Mon Sep 17 00:00:00 2001 From: Jack Morgenstein Date: Tue, 15 Aug 2006 17:20:50 +0300 Subject: [PATCH 165/488] IB/core: Fix SM LID/LID change with client reregister set After commit 12bbb2b7be7f5564952ebe0196623e97464b8ac5, when SM LID change or LID change MAD also has a client reregistration bit set, only CLIENT_REREGISTER event is generated. As a result, the sa_query module and the cache module don't update the port information, and ULPs (e.g. IPoIB) stop working. This is the regression we observe as compared to 2.6.17. Rather than generate multiple events (which would have negative performance impact), let us simply let cache and SA query respond to reregister event in the same way as to LID and SM change events. Signed-off-by: Jack Morgenstein Signed-off-by: Michael S. Tsirkin Signed-off-by: Roland Dreier --- drivers/infiniband/core/cache.c | 3 ++- drivers/infiniband/core/sa_query.c | 3 ++- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/infiniband/core/cache.c b/drivers/infiniband/core/cache.c index e05ca2cdc73f..75313ade2e0d 100644 --- a/drivers/infiniband/core/cache.c +++ b/drivers/infiniband/core/cache.c @@ -301,7 +301,8 @@ static void ib_cache_event(struct ib_event_handler *handler, event->event == IB_EVENT_PORT_ACTIVE || event->event == IB_EVENT_LID_CHANGE || event->event == IB_EVENT_PKEY_CHANGE || - event->event == IB_EVENT_SM_CHANGE) { + event->event == IB_EVENT_SM_CHANGE || + event->event == IB_EVENT_CLIENT_REREGISTER) { work = kmalloc(sizeof *work, GFP_ATOMIC); if (work) { INIT_WORK(&work->work, ib_cache_task, work); diff --git a/drivers/infiniband/core/sa_query.c b/drivers/infiniband/core/sa_query.c index aeda484ffd82..d6b84226bba7 100644 --- a/drivers/infiniband/core/sa_query.c +++ b/drivers/infiniband/core/sa_query.c @@ -405,7 +405,8 @@ static void ib_sa_event(struct ib_event_handler *handler, struct ib_event *event event->event == IB_EVENT_PORT_ACTIVE || event->event == IB_EVENT_LID_CHANGE || event->event == IB_EVENT_PKEY_CHANGE || - event->event == IB_EVENT_SM_CHANGE) { + event->event == IB_EVENT_SM_CHANGE || + event->event == IB_EVENT_CLIENT_REREGISTER) { struct ib_sa_device *sa_dev; sa_dev = container_of(handler, typeof(*sa_dev), event_handler); From c9eca0b91015bc685c2f35a50efc63d73fdf943a Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Wed, 16 Aug 2006 21:14:08 +0200 Subject: [PATCH 166/488] kbuild: correct assingment to CFLAGS with CROSS_COMPILE Some architectures change $CC in arch/$(ARCH)/Makefile mips is one example. That have impact on what options are supported by gcc so move all $(call cc-option, ...) after include of arch specific Makefile. Signed-off-by: Sam Ravnborg --- Makefile | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/Makefile b/Makefile index e71fefd220a7..1589085e000a 100644 --- a/Makefile +++ b/Makefile @@ -309,9 +309,6 @@ CPPFLAGS := -D__KERNEL__ $(LINUXINCLUDE) CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ -fno-strict-aliasing -fno-common -# Force gcc to behave correct even for buggy distributions -CFLAGS += $(call cc-option, -fno-stack-protector) - AFLAGS := -D__ASSEMBLY__ # Read KERNELRELEASE from include/config/kernel.release (if it exists) @@ -486,6 +483,8 @@ else CFLAGS += -O2 endif +include $(srctree)/arch/$(ARCH)/Makefile + ifdef CONFIG_FRAME_POINTER CFLAGS += -fno-omit-frame-pointer $(call cc-option,-fno-optimize-sibling-calls,) else @@ -500,7 +499,8 @@ ifdef CONFIG_DEBUG_INFO CFLAGS += -g endif -include $(srctree)/arch/$(ARCH)/Makefile +# Force gcc to behave correct even for buggy distributions +CFLAGS += $(call cc-option, -fno-stack-protector) # arch Makefile may override CC so keep this after arch Makefile is included NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) From ea4c07d780a6f7b7be2d984117bd3e0a2b772e3d Mon Sep 17 00:00:00 2001 From: Steve French Date: Wed, 16 Aug 2006 19:44:25 +0000 Subject: [PATCH 167/488] [CIFS] Do not send Query All EAs SMB when mount option nouser_xattr specified Pointed out by Bjoern Jacke Signed-off-by: Steve French --- fs/cifs/CHANGES | 3 ++- fs/cifs/README | 2 +- fs/cifs/xattr.c | 6 +++++- 3 files changed, 8 insertions(+), 3 deletions(-) diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES index bd37727526ea..0feb3bd49cb8 100644 --- a/fs/cifs/CHANGES +++ b/fs/cifs/CHANGES @@ -5,7 +5,8 @@ time out requests if server still responding reasonably fast on requests on other threads. Improve POSIX locking emulation, (lock cancel now works, and unlock of merged range works even to Windows servers now). Fix oops on mount to lanman servers -(win9x, os/2 etc.) when null password. +(win9x, os/2 etc.) when null password. Do not send listxattr +(SMB to query all EAs) if nouser_xattr specified. Version 1.44 ------------ diff --git a/fs/cifs/README b/fs/cifs/README index 7986d0d97ace..5f0e1bd64fee 100644 --- a/fs/cifs/README +++ b/fs/cifs/README @@ -408,7 +408,7 @@ A partial list of the supported mount options follows: user_xattr Allow getting and setting user xattrs as OS/2 EAs (extended attributes) to the server (default) e.g. via setfattr and getfattr utilities. - nouser_xattr Do not allow getfattr/setfattr to get/set xattrs + nouser_xattr Do not allow getfattr/setfattr to get/set/list xattrs mapchars Translate six of the seven reserved characters (not backslash) *?<>|: to the remap range (above 0xF000), which also diff --git a/fs/cifs/xattr.c b/fs/cifs/xattr.c index 7754d641775e..067648b7179b 100644 --- a/fs/cifs/xattr.c +++ b/fs/cifs/xattr.c @@ -330,11 +330,15 @@ ssize_t cifs_listxattr(struct dentry * direntry, char * data, size_t buf_size) sb = direntry->d_inode->i_sb; if(sb == NULL) return -EIO; - xid = GetXid(); cifs_sb = CIFS_SB(sb); pTcon = cifs_sb->tcon; + if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR) + return -EOPNOTSUPP; + + xid = GetXid(); + full_path = build_path_from_dentry(direntry); if(full_path == NULL) { FreeXid(xid); From 4e6e6504a4572dee3afcb0925ce92ad559e1e0db Mon Sep 17 00:00:00 2001 From: William Morrrow Date: Mon, 14 Aug 2006 22:37:31 -0700 Subject: [PATCH 168/488] ACPI: Handle BIOS that resumes from S3 to suspend routine rather than resume vector A BIOS has been found that resumes from S3 to the routine that invoked suspend, ignoring the resume vector. This appears to the OS as a failed S3 attempt. This same system suspend/resume's properly with Windows. It is possible to invoke the protected mode register restore routine (which would normally restore the sysenter registers) when the BIOS returns from S3. This has no effect on a correctly running system and repairs the damage from the deviant BIOS. Signed-off-by: William Morrow Signed-off-by: Jordan Crouse Signed-off-by: Andrew Morton Signed-off-by: Len Brown --- arch/i386/kernel/acpi/wakeup.S | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/i386/kernel/acpi/wakeup.S b/arch/i386/kernel/acpi/wakeup.S index 9f408eee4e6f..b781b38131c0 100644 --- a/arch/i386/kernel/acpi/wakeup.S +++ b/arch/i386/kernel/acpi/wakeup.S @@ -292,7 +292,10 @@ ENTRY(do_suspend_lowlevel) pushl $3 call acpi_enter_sleep_state addl $4, %esp - ret + +# In case of S3 failure, we'll emerge here. Jump +# to ret_point to recover + jmp ret_point .p2align 4,,7 ret_point: call restore_registers From 5672bde6355f2d12c49df1eec083d25afe489063 Mon Sep 17 00:00:00 2001 From: Handle X Date: Mon, 14 Aug 2006 22:37:27 -0700 Subject: [PATCH 169/488] ACPI: hotkey.c fixes, fix for potential crash of hotkey.c While going through the code, I found out some memory leaks and potential crashes in drivers/acpi/hotkey.c Please find the patch to fix them. This patch does the following, 1. Fixes memory leaks in error paths of hotkey_write_config 2. Fixes freeing unallocated pointers in the error paths of hotkey_write_config 3. Uses a loop instead of linear searching for parsing the userspace input in get_params 4. Uses array of char * instead of passing 4 pointer parameters explicitly into the init_{poll_}hotkey_* static functions Signed-off-by: Andrew Morton Acked-by: Luming Yu Signed-off-by: Len Brown --- drivers/acpi/hotkey.c | 283 ++++++++++++++++++------------------------ 1 file changed, 120 insertions(+), 163 deletions(-) diff --git a/drivers/acpi/hotkey.c b/drivers/acpi/hotkey.c index 32c9d88fd196..1ba2db671865 100644 --- a/drivers/acpi/hotkey.c +++ b/drivers/acpi/hotkey.c @@ -91,6 +91,14 @@ enum { HK_EVENT_ENTERRING_S5, }; +enum conf_entry_enum { + bus_handle = 0, + bus_method = 1, + action_handle = 2, + method = 3, + LAST_CONF_ENTRY +}; + /* procdir we use */ static struct proc_dir_entry *hotkey_proc_dir; static struct proc_dir_entry *hotkey_config; @@ -244,19 +252,15 @@ static int hotkey_info_open_fs(struct inode *inode, struct file *file) static char *format_result(union acpi_object *object) { - char *buf = NULL; - - buf = (char *)kmalloc(RESULT_STR_LEN, GFP_KERNEL); - if (buf) - memset(buf, 0, RESULT_STR_LEN); - else - goto do_fail; + char *buf; + buf = kzalloc(RESULT_STR_LEN, GFP_KERNEL); + if (!buf) + return NULL; /* Now, just support integer type */ if (object->type == ACPI_TYPE_INTEGER) sprintf(buf, "%d\n", (u32) object->integer.value); - do_fail: - return (buf); + return buf; } static int hotkey_polling_seq_show(struct seq_file *seq, void *offset) @@ -486,98 +490,102 @@ static void free_hotkey_device(union acpi_hotkey *key) static void free_hotkey_buffer(union acpi_hotkey *key) { + /* key would never be null, action method could be */ kfree(key->event_hotkey.action_method); } static void free_poll_hotkey_buffer(union acpi_hotkey *key) { + /* key would never be null, others could be*/ kfree(key->poll_hotkey.action_method); kfree(key->poll_hotkey.poll_method); kfree(key->poll_hotkey.poll_result); } static int -init_hotkey_device(union acpi_hotkey *key, char *bus_str, char *action_str, - char *method, int std_num, int external_num) +init_hotkey_device(union acpi_hotkey *key, char **config_entry, + int std_num, int external_num) { acpi_handle tmp_handle; acpi_status status = AE_OK; - if (std_num < 0 || IS_POLL(std_num) || !key) goto do_fail; - if (!bus_str || !action_str || !method) + if (!config_entry[bus_handle] || !config_entry[action_handle] + || !config_entry[method]) goto do_fail; key->link.hotkey_type = ACPI_HOTKEY_EVENT; key->link.hotkey_standard_num = std_num; key->event_hotkey.flag = 0; - key->event_hotkey.action_method = method; + key->event_hotkey.action_method = config_entry[method]; - status = - acpi_get_handle(NULL, bus_str, &(key->event_hotkey.bus_handle)); + status = acpi_get_handle(NULL, config_entry[bus_handle], + &(key->event_hotkey.bus_handle)); if (ACPI_FAILURE(status)) - goto do_fail; + goto do_fail_zero; key->event_hotkey.external_hotkey_num = external_num; - status = - acpi_get_handle(NULL, action_str, + status = acpi_get_handle(NULL, config_entry[action_handle], &(key->event_hotkey.action_handle)); if (ACPI_FAILURE(status)) - goto do_fail; + goto do_fail_zero; status = acpi_get_handle(key->event_hotkey.action_handle, - method, &tmp_handle); + config_entry[method], &tmp_handle); if (ACPI_FAILURE(status)) - goto do_fail; + goto do_fail_zero; return AE_OK; - do_fail: +do_fail_zero: + key->event_hotkey.action_method = NULL; +do_fail: return -ENODEV; } static int -init_poll_hotkey_device(union acpi_hotkey *key, - char *poll_str, - char *poll_method, - char *action_str, char *action_method, int std_num) +init_poll_hotkey_device(union acpi_hotkey *key, char **config_entry, + int std_num) { acpi_status status = AE_OK; acpi_handle tmp_handle; - if (std_num < 0 || IS_EVENT(std_num) || !key) goto do_fail; - - if (!poll_str || !poll_method || !action_str || !action_method) + if (!config_entry[bus_handle] ||!config_entry[bus_method] || + !config_entry[action_handle] || !config_entry[method]) goto do_fail; key->link.hotkey_type = ACPI_HOTKEY_POLLING; key->link.hotkey_standard_num = std_num; key->poll_hotkey.flag = 0; - key->poll_hotkey.poll_method = poll_method; - key->poll_hotkey.action_method = action_method; + key->poll_hotkey.poll_method = config_entry[bus_method]; + key->poll_hotkey.action_method = config_entry[method]; - status = - acpi_get_handle(NULL, poll_str, &(key->poll_hotkey.poll_handle)); + status = acpi_get_handle(NULL, config_entry[bus_handle], + &(key->poll_hotkey.poll_handle)); if (ACPI_FAILURE(status)) - goto do_fail; + goto do_fail_zero; status = acpi_get_handle(key->poll_hotkey.poll_handle, - poll_method, &tmp_handle); + config_entry[bus_method], &tmp_handle); if (ACPI_FAILURE(status)) - goto do_fail; + goto do_fail_zero; status = - acpi_get_handle(NULL, action_str, + acpi_get_handle(NULL, config_entry[action_handle], &(key->poll_hotkey.action_handle)); if (ACPI_FAILURE(status)) - goto do_fail; + goto do_fail_zero; status = acpi_get_handle(key->poll_hotkey.action_handle, - action_method, &tmp_handle); + config_entry[method], &tmp_handle); if (ACPI_FAILURE(status)) - goto do_fail; + goto do_fail_zero; key->poll_hotkey.poll_result = (union acpi_object *)kmalloc(sizeof(union acpi_object), GFP_KERNEL); if (!key->poll_hotkey.poll_result) - goto do_fail; + goto do_fail_zero; return AE_OK; - do_fail: + +do_fail_zero: + key->poll_hotkey.poll_method = NULL; + key->poll_hotkey.action_method = NULL; +do_fail: return -ENODEV; } @@ -652,17 +660,18 @@ static int hotkey_poll_config_seq_show(struct seq_file *seq, void *offset) } static int -get_parms(char *config_record, - int *cmd, - char **bus_handle, - char **bus_method, - char **action_handle, - char **method, int *internal_event_num, int *external_event_num) +get_parms(char *config_record, int *cmd, char **config_entry, + int *internal_event_num, int *external_event_num) { +/* the format of *config_record = + * "1:\d+:*" : "cmd:internal_event_num" + * "\d+:\w+:\w+:\w+:\w+:\d+:\d+" : + * "cmd:bus_handle:bus_method:action_handle:method:internal_event_num:external_event_num" + */ char *tmp, *tmp1, count; + int i; sscanf(config_record, "%d", cmd); - if (*cmd == 1) { if (sscanf(config_record, "%d:%d", cmd, internal_event_num) != 2) @@ -674,59 +683,27 @@ get_parms(char *config_record, if (!tmp) goto do_fail; tmp++; - tmp1 = strchr(tmp, ':'); - if (!tmp1) - goto do_fail; - - count = tmp1 - tmp; - *bus_handle = (char *)kmalloc(count + 1, GFP_KERNEL); - if (!*bus_handle) - goto do_fail; - strncpy(*bus_handle, tmp, count); - *(*bus_handle + count) = 0; - - tmp = tmp1; - tmp++; - tmp1 = strchr(tmp, ':'); - if (!tmp1) - goto do_fail; - count = tmp1 - tmp; - *bus_method = (char *)kmalloc(count + 1, GFP_KERNEL); - if (!*bus_method) - goto do_fail; - strncpy(*bus_method, tmp, count); - *(*bus_method + count) = 0; - - tmp = tmp1; - tmp++; - tmp1 = strchr(tmp, ':'); - if (!tmp1) - goto do_fail; - count = tmp1 - tmp; - *action_handle = (char *)kmalloc(count + 1, GFP_KERNEL); - if (!*action_handle) - goto do_fail; - strncpy(*action_handle, tmp, count); - *(*action_handle + count) = 0; - - tmp = tmp1; - tmp++; - tmp1 = strchr(tmp, ':'); - if (!tmp1) - goto do_fail; - count = tmp1 - tmp; - *method = (char *)kmalloc(count + 1, GFP_KERNEL); - if (!*method) - goto do_fail; - strncpy(*method, tmp, count); - *(*method + count) = 0; - - if (sscanf(tmp1 + 1, "%d:%d", internal_event_num, external_event_num) <= - 0) - goto do_fail; - - return 6; - do_fail: + for (i = 0; i < LAST_CONF_ENTRY; i++) { + tmp1 = strchr(tmp, ':'); + if (!tmp1) { + goto do_fail; + } + count = tmp1 - tmp; + config_entry[i] = kzalloc(count + 1, GFP_KERNEL); + if (!config_entry[i]) + goto handle_failure; + strncpy(config_entry[i], tmp, count); + tmp = tmp1 + 1; + } + if (sscanf(tmp, "%d:%d", internal_event_num, external_event_num) <= 0) + goto handle_failure; + if (!IS_OTHERS(*internal_event_num)) { + return 6; + } +handle_failure: + while (i-- > 0) + kfree(config_entry[i]); +do_fail: return -1; } @@ -736,50 +713,34 @@ static ssize_t hotkey_write_config(struct file *file, size_t count, loff_t * data) { char *config_record = NULL; - char *bus_handle = NULL; - char *bus_method = NULL; - char *action_handle = NULL; - char *method = NULL; + char *config_entry[LAST_CONF_ENTRY]; int cmd, internal_event_num, external_event_num; int ret = 0; - union acpi_hotkey *key = NULL; + union acpi_hotkey *key = kzalloc(sizeof(union acpi_hotkey), GFP_KERNEL); - - config_record = (char *)kmalloc(count + 1, GFP_KERNEL); - if (!config_record) + if (!key) return -ENOMEM; + config_record = kzalloc(count + 1, GFP_KERNEL); + if (!config_record) { + kfree(key); + return -ENOMEM; + } + if (copy_from_user(config_record, buffer, count)) { kfree(config_record); + kfree(key); printk(KERN_ERR PREFIX "Invalid data\n"); return -EINVAL; } - config_record[count] = 0; - - ret = get_parms(config_record, - &cmd, - &bus_handle, - &bus_method, - &action_handle, - &method, &internal_event_num, &external_event_num); - + ret = get_parms(config_record, &cmd, config_entry, + &internal_event_num, &external_event_num); kfree(config_record); - if (IS_OTHERS(internal_event_num)) - goto do_fail; if (ret != 6) { - do_fail: - kfree(bus_handle); - kfree(bus_method); - kfree(action_handle); - kfree(method); printk(KERN_ERR PREFIX "Invalid data format ret=%d\n", ret); return -EINVAL; } - key = kmalloc(sizeof(union acpi_hotkey), GFP_KERNEL); - if (!key) - goto do_fail; - memset(key, 0, sizeof(union acpi_hotkey)); if (cmd == 1) { union acpi_hotkey *tmp = NULL; tmp = get_hotkey_by_event(&global_hotkey_list, @@ -791,34 +752,19 @@ static ssize_t hotkey_write_config(struct file *file, goto cont_cmd; } if (IS_EVENT(internal_event_num)) { - kfree(bus_method); - ret = init_hotkey_device(key, bus_handle, action_handle, method, - internal_event_num, - external_event_num); - } else - ret = init_poll_hotkey_device(key, bus_handle, bus_method, - action_handle, method, - internal_event_num); - if (ret) { - kfree(bus_handle); - kfree(action_handle); - if (IS_EVENT(internal_event_num)) - free_hotkey_buffer(key); - else - free_poll_hotkey_buffer(key); - kfree(key); - printk(KERN_ERR PREFIX "Invalid hotkey\n"); - return -EINVAL; + if (init_hotkey_device(key, config_entry, + internal_event_num, external_event_num)) + goto init_hotkey_fail; + } else { + if (init_poll_hotkey_device(key, config_entry, + internal_event_num)) + goto init_poll_hotkey_fail; } - - cont_cmd: - kfree(bus_handle); - kfree(action_handle); - +cont_cmd: switch (cmd) { case 0: - if (get_hotkey_by_event - (&global_hotkey_list, key->link.hotkey_standard_num)) + if (get_hotkey_by_event(&global_hotkey_list, + key->link.hotkey_standard_num)) goto fail_out; else hotkey_add(key); @@ -827,6 +773,7 @@ static ssize_t hotkey_write_config(struct file *file, hotkey_remove(key); break; case 2: + /* key is kfree()ed if matched*/ if (hotkey_update(key)) goto fail_out; break; @@ -835,11 +782,22 @@ static ssize_t hotkey_write_config(struct file *file, break; } return count; - fail_out: - if (IS_EVENT(internal_event_num)) - free_hotkey_buffer(key); - else - free_poll_hotkey_buffer(key); + +init_poll_hotkey_fail: /* failed init_poll_hotkey_device */ + kfree(config_entry[bus_method]); + config_entry[bus_method] = NULL; +init_hotkey_fail: /* failed init_hotkey_device */ + kfree(config_entry[method]); +fail_out: + kfree(config_entry[bus_handle]); + kfree(config_entry[action_handle]); + /* No double free since elements =NULL for error cases */ + if (IS_EVENT(internal_event_num)) { + if (config_entry[bus_method]) + kfree(config_entry[bus_method]); + free_hotkey_buffer(key); /* frees [method] */ + } else + free_poll_hotkey_buffer(key); /* frees [bus_method]+[method] */ kfree(key); printk(KERN_ERR PREFIX "invalid key\n"); return -EINVAL; @@ -923,10 +881,9 @@ static ssize_t hotkey_execute_aml_method(struct file *file, union acpi_hotkey *key; - arg = (char *)kmalloc(count + 1, GFP_KERNEL); + arg = kzalloc(count + 1, GFP_KERNEL); if (!arg) return -ENOMEM; - arg[count] = 0; if (copy_from_user(arg, buffer, count)) { kfree(arg); From d68909f4c3eee09c13d4e5c86512c6c075553dbd Mon Sep 17 00:00:00 2001 From: Len Brown Date: Wed, 16 Aug 2006 19:16:58 -0400 Subject: [PATCH 170/488] ACPI: avoid irqrouter_resume might_sleep oops on resume from S4 __might_sleep+0x8e/0x93 acpi_os_wait_semaphore+0x50/0xa3 acpi_ut_acquire_mutex+0x28/0x6a acpi_ns_get_node+0x46/0x88 acpi_ns_evaluate+0x2d/0xfc acpi_rs_set_srs_method_data+0xc5/0xe1 acpi_set_current_resources+0x31/0x3f acpi_pci_link_set+0xfc/0x1a5 irqrouter_resume+0x48/0x5f and __might_sleep+0x8e/0x93 kmem_cache_alloc+0x2a/0x8f acpi_evaluate_integer+0x32/0x96 acpi_bus_get_status+0x30/0x84 acpi_pci_link_set+0x12a/0x1a5 irqrouter_resume+0x48/0x5f http://bugzilla.kernel.org/show_bug.cgi?id=6810 Signed-off-by: Len Brown --- drivers/acpi/osl.c | 10 ++++++++++ drivers/acpi/utils.c | 2 +- 2 files changed, 11 insertions(+), 1 deletion(-) diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index b7d1514cd199..507f051d1cef 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -746,6 +746,16 @@ acpi_status acpi_os_wait_semaphore(acpi_handle handle, u32 units, u16 timeout) ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, "Waiting for semaphore[%p|%d|%d]\n", handle, units, timeout)); + /* + * This can be called during resume with interrupts off. + * Like boot-time, we should be single threaded and will + * always get the lock if we try -- timeout or not. + * If this doesn't succeed, then we will oops courtesy of + * might_sleep() in down(). + */ + if (!down_trylock(sem)) + return AE_OK; + switch (timeout) { /* * No Wait: diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c index f48227f4c8c9..d0d84c43a9d4 100644 --- a/drivers/acpi/utils.c +++ b/drivers/acpi/utils.c @@ -262,7 +262,7 @@ acpi_evaluate_integer(acpi_handle handle, if (!data) return AE_BAD_PARAMETER; - element = kmalloc(sizeof(union acpi_object), GFP_KERNEL); + element = kmalloc(sizeof(union acpi_object), irqs_disabled() ? GFP_ATOMIC: GFP_KERNEL); if (!element) return AE_NO_MEMORY; From eac8392f9591b359847b8a6abb75ca60967bcecd Mon Sep 17 00:00:00 2001 From: David Wilder Date: Thu, 29 Jun 2006 15:17:30 -0700 Subject: [PATCH 171/488] [POWERPC] Make secondary CPUs call into kdump on reset exception In the case of a system hang, the user will invoke soft-reset to initiate the kdump boot. If xmon is enabled, the CPU(s) enter into the xmon debugger. Unfortunately, the secondary CPU(s) will return to the hung state when they exit from the debugger (returned from die() -> system_reset_exception()). This causes a problem in kdump since the hung CPU(s) will not respond to the IPI sent from kdump. This patch fixes the issue by calling crash_kexec_secondary() directly from system_reset_exception() without returning to the previous state. These secondary CPUs wait 5ms until the kdump boot is started by the primary CPU. In the case we exited from the debugger to "recover" (command 'x' in xmon) the primary and the secondary CPUs will all return from die() -> system_reset_exception() ->crash_kexec_secondary() wait 5ms, then return to the previous state. A kdump boot is not started in this case. Signed-off-by: Haren Myneni Signed-off-by: David Wilder Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/traps.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index 2105767fcc57..5147175f921c 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -211,6 +211,19 @@ void system_reset_exception(struct pt_regs *regs) die("System Reset", regs, SIGABRT); + /* + * Some CPUs when released from the debugger will execute this path. + * These CPUs entered the debugger via a soft-reset. If the CPU was + * hung before entering the debugger it will return to the hung + * state when exiting this function. This causes a problem in + * kdump since the hung CPU(s) will not respond to the IPI sent + * from kdump. To prevent the problem we call crash_kexec_secondary() + * here. If a kdump had not been initiated or we exit the debugger + * with the "exit and recover" command (x) crash_kexec_secondary() + * will return after 5ms and the CPU returns to its previous state. + */ + crash_kexec_secondary(regs); + /* Must die if the interrupt is not recoverable */ if (!(regs->msr & MSR_RI)) panic("Unrecoverable System Reset"); From 90bdde362cc506173c1d18b8f516b18e5b228e96 Mon Sep 17 00:00:00 2001 From: Will Schmidt Date: Tue, 8 Aug 2006 09:40:00 -0500 Subject: [PATCH 172/488] [POWERPC] update {g5,iseries,pseries}_defconfigs Updating the defconfigs for iseries, pseries, and G5. Sticking with the defaults, with the following exceptions: I've turned off HW_RANDOM for all three configs. For G5, I've enabled SND_AOA and friends as modules; this includes the FABRIC_LAYOUT, ONYX, TAS, TOONIE and SOUNDBUS* config options. Signed-off-by: Will Schmidt Signed-off-by: Paul Mackerras --- arch/powerpc/configs/g5_defconfig | 122 ++++++++++++++++++++----- arch/powerpc/configs/iseries_defconfig | 78 +++++++++++++--- arch/powerpc/configs/pseries_defconfig | 78 ++++++++++++---- 3 files changed, 224 insertions(+), 54 deletions(-) diff --git a/arch/powerpc/configs/g5_defconfig b/arch/powerpc/configs/g5_defconfig index a45627547d03..8c6bd17c6929 100644 --- a/arch/powerpc/configs/g5_defconfig +++ b/arch/powerpc/configs/g5_defconfig @@ -1,16 +1,18 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.17-rc1 -# Wed Apr 19 13:24:37 2006 +# Linux kernel version: 2.6.18-rc3 +# Tue Aug 8 09:12:29 2006 # CONFIG_PPC64=y CONFIG_64BIT=y CONFIG_PPC_MERGE=y CONFIG_MMU=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_IRQ_PER_CPU=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_GENERIC_HWEIGHT=y CONFIG_GENERIC_CALIBRATE_DELAY=y +CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_PPC=y CONFIG_EARLY_PRINTK=y CONFIG_COMPAT=y @@ -33,6 +35,7 @@ CONFIG_PPC_STD_MMU=y CONFIG_VIRT_CPU_ACCOUNTING=y CONFIG_SMP=y CONFIG_NR_CPUS=4 +CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" # # Code maturity level options @@ -50,6 +53,7 @@ CONFIG_SWAP=y CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y # CONFIG_BSD_PROCESS_ACCT is not set +# CONFIG_TASKSTATS is not set CONFIG_SYSCTL=y # CONFIG_AUDIT is not set CONFIG_IKCONFIG=y @@ -67,10 +71,12 @@ CONFIG_PRINTK=y CONFIG_BUG=y CONFIG_ELF_CORE=y CONFIG_BASE_FULL=y +CONFIG_RT_MUTEXES=y CONFIG_FUTEX=y CONFIG_EPOLL=y CONFIG_SHMEM=y CONFIG_SLAB=y +CONFIG_VM_EVENT_COUNTERS=y # CONFIG_TINY_SHMEM is not set CONFIG_BASE_SMALL=0 # CONFIG_SLOB is not set @@ -116,12 +122,16 @@ CONFIG_PPC_PMAC=y CONFIG_PPC_PMAC64=y # CONFIG_PPC_MAPLE is not set # CONFIG_PPC_CELL is not set +# CONFIG_PPC_CELL_NATIVE is not set +# CONFIG_PPC_IBM_CELL_BLADE is not set +# CONFIG_UDBG_RTAS_CONSOLE is not set CONFIG_U3_DART=y CONFIG_MPIC=y # CONFIG_PPC_RTAS is not set # CONFIG_MMIO_NVRAM is not set CONFIG_MPIC_BROKEN_U3=y # CONFIG_PPC_MPC106 is not set +CONFIG_PPC_970_NAP=y CONFIG_CPU_FREQ=y CONFIG_CPU_FREQ_TABLE=y # CONFIG_CPU_FREQ_DEBUG is not set @@ -153,6 +163,7 @@ CONFIG_BINFMT_ELF=y CONFIG_FORCE_MAX_ZONEORDER=13 CONFIG_IOMMU_VMERGE=y # CONFIG_HOTPLUG_CPU is not set +CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_KEXEC=y # CONFIG_CRASH_DUMP is not set CONFIG_IRQ_ALL_CPUS=y @@ -168,6 +179,7 @@ CONFIG_FLATMEM=y CONFIG_FLAT_NODE_MEM_MAP=y # CONFIG_SPARSEMEM_STATIC is not set CONFIG_SPLIT_PTLOCK_CPUS=4 +CONFIG_RESOURCES_64BIT=y # CONFIG_PPC_64K_PAGES is not set # CONFIG_SCHED_SMT is not set CONFIG_PROC_DEVICETREE=y @@ -184,6 +196,7 @@ CONFIG_GENERIC_ISA_DMA=y # CONFIG_PPC_INDIRECT_PCI is not set CONFIG_PCI=y CONFIG_PCI_DOMAINS=y +# CONFIG_PCIEPORTBUS is not set # CONFIG_PCI_DEBUG is not set # @@ -227,6 +240,8 @@ CONFIG_INET_ESP=m CONFIG_INET_IPCOMP=m CONFIG_INET_XFRM_TUNNEL=m CONFIG_INET_TUNNEL=y +CONFIG_INET_XFRM_MODE_TRANSPORT=y +CONFIG_INET_XFRM_MODE_TUNNEL=y CONFIG_INET_DIAG=y CONFIG_INET_TCP_DIAG=y # CONFIG_TCP_CONG_ADVANCED is not set @@ -239,6 +254,7 @@ CONFIG_TCP_CONG_BIC=y # CONFIG_IPV6 is not set # CONFIG_INET6_XFRM_TUNNEL is not set # CONFIG_INET6_TUNNEL is not set +# CONFIG_NETWORK_SECMARK is not set CONFIG_NETFILTER=y # CONFIG_NETFILTER_DEBUG is not set @@ -263,6 +279,7 @@ CONFIG_IP_NF_TFTP=m CONFIG_IP_NF_AMANDA=m # CONFIG_IP_NF_PPTP is not set # CONFIG_IP_NF_H323 is not set +# CONFIG_IP_NF_SIP is not set CONFIG_IP_NF_QUEUE=m # @@ -318,6 +335,7 @@ CONFIG_STANDALONE=y CONFIG_PREVENT_FIRMWARE_BUILD=y CONFIG_FW_LOADER=y # CONFIG_DEBUG_DRIVER is not set +# CONFIG_SYS_HYPERVISOR is not set # # Connector - unified userspace <-> kernelspace linker @@ -355,6 +373,7 @@ CONFIG_BLK_DEV_NBD=m CONFIG_BLK_DEV_RAM=y CONFIG_BLK_DEV_RAM_COUNT=16 CONFIG_BLK_DEV_RAM_SIZE=65536 +CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024 CONFIG_BLK_DEV_INITRD=y CONFIG_CDROM_PKTCDVD=m CONFIG_CDROM_PKTCDVD_BUFFERS=8 @@ -417,7 +436,6 @@ CONFIG_IDEDMA_PCI_AUTO=y CONFIG_BLK_DEV_IDE_PMAC=y CONFIG_BLK_DEV_IDE_PMAC_ATA100FIRST=y CONFIG_BLK_DEV_IDEDMA_PMAC=y -# CONFIG_BLK_DEV_IDE_PMAC_BLINK is not set # CONFIG_IDE_ARM is not set CONFIG_BLK_DEV_IDEDMA=y # CONFIG_IDEDMA_IVB is not set @@ -478,6 +496,7 @@ CONFIG_SCSI_SATA_SVW=y # CONFIG_SCSI_SATA_MV is not set # CONFIG_SCSI_SATA_NV is not set # CONFIG_SCSI_PDC_ADMA is not set +# CONFIG_SCSI_HPTIOP is not set # CONFIG_SCSI_SATA_QSTOR is not set # CONFIG_SCSI_SATA_PROMISE is not set # CONFIG_SCSI_SATA_SX4 is not set @@ -497,7 +516,6 @@ CONFIG_SCSI_SATA_SVW=y # CONFIG_SCSI_INIA100 is not set # CONFIG_SCSI_SYM53C8XX_2 is not set # CONFIG_SCSI_IPR is not set -# CONFIG_SCSI_QLOGIC_FC is not set # CONFIG_SCSI_QLOGIC_1280 is not set # CONFIG_SCSI_QLA_FC is not set # CONFIG_SCSI_LPFC is not set @@ -514,9 +532,7 @@ CONFIG_MD_LINEAR=y CONFIG_MD_RAID0=y CONFIG_MD_RAID1=y CONFIG_MD_RAID10=m -CONFIG_MD_RAID5=y -# CONFIG_MD_RAID5_RESHAPE is not set -CONFIG_MD_RAID6=m +# CONFIG_MD_RAID456 is not set CONFIG_MD_MULTIPATH=m CONFIG_MD_FAULTY=m CONFIG_BLK_DEV_DM=y @@ -559,7 +575,6 @@ CONFIG_IEEE1394_OHCI1394=y # CONFIG_IEEE1394_VIDEO1394=m CONFIG_IEEE1394_SBP2=m -# CONFIG_IEEE1394_SBP2_PHYS_DMA is not set CONFIG_IEEE1394_ETH1394=m CONFIG_IEEE1394_DV1394=m CONFIG_IEEE1394_RAWIO=y @@ -573,6 +588,7 @@ CONFIG_IEEE1394_RAWIO=y # Macintosh device drivers # CONFIG_ADB_PMU=y +# CONFIG_ADB_PMU_LED is not set CONFIG_PMAC_SMU=y CONFIG_THERM_PM72=y CONFIG_WINDFARM=y @@ -643,6 +659,7 @@ CONFIG_TIGON3=y # CONFIG_CHELSIO_T1 is not set # CONFIG_IXGB is not set # CONFIG_S2IO is not set +# CONFIG_MYRI10GE is not set # # Token Ring devices @@ -739,6 +756,7 @@ CONFIG_SERIO=y CONFIG_VT=y CONFIG_VT_CONSOLE=y CONFIG_HW_CONSOLE=y +# CONFIG_VT_HW_CONSOLE_BINDING is not set # CONFIG_SERIAL_NONSTANDARD is not set # @@ -754,6 +772,7 @@ CONFIG_HW_CONSOLE=y CONFIG_UNIX98_PTYS=y CONFIG_LEGACY_PTYS=y CONFIG_LEGACY_PTY_COUNT=256 +# CONFIG_BRIQ_PANEL is not set # # IPMI @@ -764,6 +783,7 @@ CONFIG_LEGACY_PTY_COUNT=256 # Watchdog Cards # # CONFIG_WATCHDOG is not set +# CONFIG_HW_RANDOM is not set CONFIG_GEN_RTC=y # CONFIG_GEN_RTC_X is not set # CONFIG_DTLK is not set @@ -774,6 +794,7 @@ CONFIG_GEN_RTC=y # Ftape, the floppy tape device driver # CONFIG_AGP=m +# CONFIG_AGP_SIS is not set # CONFIG_AGP_VIA is not set CONFIG_AGP_UNINORTH=m # CONFIG_DRM is not set @@ -813,6 +834,7 @@ CONFIG_I2C_ALGOBIT=y # CONFIG_I2C_PIIX4 is not set CONFIG_I2C_POWERMAC=y # CONFIG_I2C_NFORCE2 is not set +# CONFIG_I2C_OCORES is not set # CONFIG_I2C_PARPORT_LIGHT is not set # CONFIG_I2C_PROSAVAGE is not set # CONFIG_I2C_SAVAGE4 is not set @@ -849,7 +871,6 @@ CONFIG_I2C_POWERMAC=y # # Dallas's 1-wire bus # -# CONFIG_W1 is not set # # Hardware Monitoring support @@ -865,6 +886,7 @@ CONFIG_I2C_POWERMAC=y # Multimedia devices # # CONFIG_VIDEO_DEV is not set +CONFIG_VIDEO_V4L2=y # # Digital Video Broadcasting Devices @@ -875,22 +897,19 @@ CONFIG_I2C_POWERMAC=y # # Graphics support # +CONFIG_FIRMWARE_EDID=y CONFIG_FB=y CONFIG_FB_CFB_FILLRECT=y CONFIG_FB_CFB_COPYAREA=y CONFIG_FB_CFB_IMAGEBLIT=y CONFIG_FB_MACMODES=y -CONFIG_FB_FIRMWARE_EDID=y +# CONFIG_FB_BACKLIGHT is not set CONFIG_FB_MODE_HELPERS=y CONFIG_FB_TILEBLITTING=y # CONFIG_FB_CIRRUS is not set # CONFIG_FB_PM2 is not set # CONFIG_FB_CYBER2000 is not set CONFIG_FB_OF=y -# CONFIG_FB_CONTROL is not set -# CONFIG_FB_PLATINUM is not set -# CONFIG_FB_VALKYRIE is not set -# CONFIG_FB_CT65550 is not set # CONFIG_FB_ASILIANT is not set # CONFIG_FB_IMSTT is not set # CONFIG_FB_VGA16 is not set @@ -990,6 +1009,18 @@ CONFIG_SND_VERBOSE_PROCFS=y # CONFIG_SND_CMIPCI is not set # CONFIG_SND_CS4281 is not set # CONFIG_SND_CS46XX is not set +# CONFIG_SND_DARLA20 is not set +# CONFIG_SND_GINA20 is not set +# CONFIG_SND_LAYLA20 is not set +# CONFIG_SND_DARLA24 is not set +# CONFIG_SND_GINA24 is not set +# CONFIG_SND_LAYLA24 is not set +# CONFIG_SND_MONA is not set +# CONFIG_SND_MIA is not set +# CONFIG_SND_ECHO3G is not set +# CONFIG_SND_INDIGO is not set +# CONFIG_SND_INDIGOIO is not set +# CONFIG_SND_INDIGODJ is not set # CONFIG_SND_EMU10K1 is not set # CONFIG_SND_EMU10K1X is not set # CONFIG_SND_ENS1370 is not set @@ -1026,6 +1057,17 @@ CONFIG_SND_VERBOSE_PROCFS=y CONFIG_SND_POWERMAC=m CONFIG_SND_POWERMAC_AUTO_DRC=y +# +# Apple Onboard Audio driver +# +CONFIG_SND_AOA=m +CONFIG_SND_AOA_FABRIC_LAYOUT=m +CONFIG_SND_AOA_ONYX=m +CONFIG_SND_AOA_TAS=m +CONFIG_SND_AOA_TOONIE=m +CONFIG_SND_AOA_SOUNDBUS=m +CONFIG_SND_AOA_SOUNDBUS_I2S=m + # # USB devices # @@ -1060,6 +1102,7 @@ CONFIG_USB_DEVICEFS=y CONFIG_USB_EHCI_HCD=y # CONFIG_USB_EHCI_SPLIT_ISO is not set # CONFIG_USB_EHCI_ROOT_HUB_TT is not set +# CONFIG_USB_EHCI_TT_NEWSCHED is not set # CONFIG_USB_ISP116X_HCD is not set CONFIG_USB_OHCI_HCD=y # CONFIG_USB_OHCI_BIG_ENDIAN is not set @@ -1110,9 +1153,7 @@ CONFIG_USB_HIDDEV=y # CONFIG_USB_ACECAD is not set # CONFIG_USB_KBTAB is not set # CONFIG_USB_POWERMATE is not set -# CONFIG_USB_MTOUCH is not set -# CONFIG_USB_ITMTOUCH is not set -# CONFIG_USB_EGALAX is not set +# CONFIG_USB_TOUCHSCREEN is not set # CONFIG_USB_YEALINK is not set # CONFIG_USB_XPAD is not set # CONFIG_USB_ATI_REMOTE is not set @@ -1155,6 +1196,7 @@ CONFIG_USB_SERIAL=m CONFIG_USB_SERIAL_GENERIC=y # CONFIG_USB_SERIAL_AIRPRIME is not set # CONFIG_USB_SERIAL_ANYDATA is not set +# CONFIG_USB_SERIAL_ARK3116 is not set CONFIG_USB_SERIAL_BELKIN=m # CONFIG_USB_SERIAL_WHITEHEAT is not set CONFIG_USB_SERIAL_DIGI_ACCELEPORT=m @@ -1162,6 +1204,7 @@ CONFIG_USB_SERIAL_DIGI_ACCELEPORT=m CONFIG_USB_SERIAL_CYPRESS_M8=m CONFIG_USB_SERIAL_EMPEG=m CONFIG_USB_SERIAL_FTDI_SIO=m +# CONFIG_USB_SERIAL_FUNSOFT is not set CONFIG_USB_SERIAL_VISOR=m CONFIG_USB_SERIAL_IPAQ=m CONFIG_USB_SERIAL_IR=m @@ -1191,9 +1234,11 @@ CONFIG_USB_SERIAL_PL2303=m # CONFIG_USB_SERIAL_HP4X is not set CONFIG_USB_SERIAL_SAFE=m CONFIG_USB_SERIAL_SAFE_PADDED=y +# CONFIG_USB_SERIAL_SIERRAWIRELESS is not set CONFIG_USB_SERIAL_TI=m CONFIG_USB_SERIAL_CYBERJACK=m CONFIG_USB_SERIAL_XIRCOM=m +# CONFIG_USB_SERIAL_OPTION is not set CONFIG_USB_SERIAL_OMNINET=m CONFIG_USB_EZUSB=y @@ -1207,10 +1252,12 @@ CONFIG_USB_EZUSB=y # CONFIG_USB_LEGOTOWER is not set # CONFIG_USB_LCD is not set # CONFIG_USB_LED is not set +# CONFIG_USB_CYPRESS_CY7C63 is not set # CONFIG_USB_CYTHERM is not set # CONFIG_USB_PHIDGETKIT is not set # CONFIG_USB_PHIDGETSERVO is not set # CONFIG_USB_IDMOUSE is not set +CONFIG_USB_APPLEDISPLAY=m # CONFIG_USB_SISUSBVGA is not set # CONFIG_USB_LD is not set # CONFIG_USB_TEST is not set @@ -1234,6 +1281,14 @@ CONFIG_USB_EZUSB=y # # CONFIG_NEW_LEDS is not set +# +# LED drivers +# + +# +# LED Triggers +# + # # InfiniBand support # @@ -1248,6 +1303,19 @@ CONFIG_USB_EZUSB=y # # CONFIG_RTC_CLASS is not set +# +# DMA Engine support +# +# CONFIG_DMA_ENGINE is not set + +# +# DMA Clients +# + +# +# DMA Devices +# + # # File systems # @@ -1273,7 +1341,6 @@ CONFIG_REISERFS_FS_SECURITY=y # CONFIG_JFS_FS is not set CONFIG_FS_POSIX_ACL=y CONFIG_XFS_FS=m -CONFIG_XFS_EXPORT=y # CONFIG_XFS_QUOTA is not set CONFIG_XFS_SECURITY=y CONFIG_XFS_POSIX_ACL=y @@ -1282,6 +1349,7 @@ CONFIG_XFS_POSIX_ACL=y # CONFIG_MINIX_FS is not set # CONFIG_ROMFS_FS is not set CONFIG_INOTIFY=y +CONFIG_INOTIFY_USER=y # CONFIG_QUOTA is not set CONFIG_DNOTIFY=y CONFIG_AUTOFS_FS=m @@ -1363,7 +1431,9 @@ CONFIG_RPCSEC_GSS_KRB5=y # CONFIG_SMB_FS is not set CONFIG_CIFS=m # CONFIG_CIFS_STATS is not set +# CONFIG_CIFS_WEAK_PW_HASH is not set # CONFIG_CIFS_XATTR is not set +# CONFIG_CIFS_DEBUG2 is not set # CONFIG_CIFS_EXPERIMENTAL is not set # CONFIG_NCP_FS is not set # CONFIG_CODA_FS is not set @@ -1444,6 +1514,9 @@ CONFIG_CRC32=y CONFIG_LIBCRC32C=m CONFIG_ZLIB_INFLATE=y CONFIG_ZLIB_DEFLATE=m +CONFIG_TEXTSEARCH=y +CONFIG_TEXTSEARCH_KMP=m +CONFIG_PLIST=y # # Instrumentation Support @@ -1457,14 +1530,19 @@ CONFIG_OPROFILE=y # # CONFIG_PRINTK_TIME is not set CONFIG_MAGIC_SYSRQ=y +# CONFIG_UNUSED_SYMBOLS is not set CONFIG_DEBUG_KERNEL=y CONFIG_LOG_BUF_SHIFT=17 CONFIG_DETECT_SOFTLOCKUP=y # CONFIG_SCHEDSTATS is not set # CONFIG_DEBUG_SLAB is not set -CONFIG_DEBUG_MUTEXES=y +# CONFIG_DEBUG_RT_MUTEXES is not set +# CONFIG_RT_MUTEX_TESTER is not set # CONFIG_DEBUG_SPINLOCK is not set +CONFIG_DEBUG_MUTEXES=y +# CONFIG_DEBUG_RWSEMS is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set +# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set # CONFIG_DEBUG_KOBJECT is not set # CONFIG_DEBUG_INFO is not set CONFIG_DEBUG_FS=y @@ -1476,11 +1554,7 @@ CONFIG_FORCED_INLINING=y # CONFIG_DEBUGGER is not set CONFIG_IRQSTACKS=y CONFIG_BOOTX_TEXT=y -# CONFIG_PPC_EARLY_DEBUG_LPAR is not set -# CONFIG_PPC_EARLY_DEBUG_G5 is not set -# CONFIG_PPC_EARLY_DEBUG_RTAS is not set -# CONFIG_PPC_EARLY_DEBUG_MAPLE is not set -# CONFIG_PPC_EARLY_DEBUG_ISERIES is not set +# CONFIG_PPC_EARLY_DEBUG is not set # # Security options diff --git a/arch/powerpc/configs/iseries_defconfig b/arch/powerpc/configs/iseries_defconfig index a95e455a1944..72ed95b3ead6 100644 --- a/arch/powerpc/configs/iseries_defconfig +++ b/arch/powerpc/configs/iseries_defconfig @@ -1,16 +1,18 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.17-rc1 -# Wed Apr 19 11:46:44 2006 +# Linux kernel version: 2.6.18-rc3 +# Tue Aug 8 09:15:46 2006 # CONFIG_PPC64=y CONFIG_64BIT=y CONFIG_PPC_MERGE=y CONFIG_MMU=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_IRQ_PER_CPU=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_GENERIC_HWEIGHT=y CONFIG_GENERIC_CALIBRATE_DELAY=y +CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_PPC=y CONFIG_EARLY_PRINTK=y CONFIG_COMPAT=y @@ -34,6 +36,7 @@ CONFIG_PPC_STD_MMU=y CONFIG_VIRT_CPU_ACCOUNTING=y CONFIG_SMP=y CONFIG_NR_CPUS=32 +CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" # # Code maturity level options @@ -51,6 +54,7 @@ CONFIG_SWAP=y CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y # CONFIG_BSD_PROCESS_ACCT is not set +# CONFIG_TASKSTATS is not set CONFIG_SYSCTL=y CONFIG_AUDIT=y CONFIG_AUDITSYSCALL=y @@ -69,10 +73,12 @@ CONFIG_PRINTK=y CONFIG_BUG=y CONFIG_ELF_CORE=y CONFIG_BASE_FULL=y +CONFIG_RT_MUTEXES=y CONFIG_FUTEX=y CONFIG_EPOLL=y CONFIG_SHMEM=y CONFIG_SLAB=y +CONFIG_VM_EVENT_COUNTERS=y # CONFIG_TINY_SHMEM is not set CONFIG_BASE_SMALL=0 # CONFIG_SLOB is not set @@ -113,10 +119,14 @@ CONFIG_DEFAULT_IOSCHED="anticipatory" CONFIG_PPC_ISERIES=y # CONFIG_EMBEDDED6xx is not set # CONFIG_APUS is not set +# CONFIG_PPC_CELL is not set +# CONFIG_PPC_CELL_NATIVE is not set +# CONFIG_UDBG_RTAS_CONSOLE is not set # CONFIG_PPC_RTAS is not set # CONFIG_MMIO_NVRAM is not set CONFIG_IBMVIO=y # CONFIG_PPC_MPC106 is not set +# CONFIG_PPC_970_NAP is not set # CONFIG_CPU_FREQ is not set # CONFIG_WANT_EARLY_SERIAL is not set @@ -135,6 +145,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_BINFMT_MISC is not set CONFIG_FORCE_MAX_ZONEORDER=13 CONFIG_IOMMU_VMERGE=y +CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_IRQ_ALL_CPUS=y CONFIG_LPARCFG=y # CONFIG_NUMA is not set @@ -149,6 +160,7 @@ CONFIG_FLATMEM=y CONFIG_FLAT_NODE_MEM_MAP=y # CONFIG_SPARSEMEM_STATIC is not set CONFIG_SPLIT_PTLOCK_CPUS=4 +CONFIG_RESOURCES_64BIT=y # CONFIG_PPC_64K_PAGES is not set # CONFIG_SCHED_SMT is not set CONFIG_PROC_DEVICETREE=y @@ -164,6 +176,7 @@ CONFIG_GENERIC_ISA_DMA=y # CONFIG_PPC_INDIRECT_PCI is not set CONFIG_PCI=y CONFIG_PCI_DOMAINS=y +# CONFIG_PCIEPORTBUS is not set # CONFIG_PCI_DEBUG is not set # @@ -207,6 +220,8 @@ CONFIG_INET_ESP=m CONFIG_INET_IPCOMP=m CONFIG_INET_XFRM_TUNNEL=m CONFIG_INET_TUNNEL=y +CONFIG_INET_XFRM_MODE_TRANSPORT=y +CONFIG_INET_XFRM_MODE_TUNNEL=y CONFIG_INET_DIAG=y CONFIG_INET_TCP_DIAG=y # CONFIG_TCP_CONG_ADVANCED is not set @@ -219,6 +234,7 @@ CONFIG_TCP_CONG_BIC=y # CONFIG_IPV6 is not set # CONFIG_INET6_XFRM_TUNNEL is not set # CONFIG_INET6_TUNNEL is not set +# CONFIG_NETWORK_SECMARK is not set CONFIG_NETFILTER=y # CONFIG_NETFILTER_DEBUG is not set @@ -246,9 +262,11 @@ CONFIG_NETFILTER_XT_MATCH_MARK=m # CONFIG_NETFILTER_XT_MATCH_POLICY is not set # CONFIG_NETFILTER_XT_MATCH_MULTIPORT is not set CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m +# CONFIG_NETFILTER_XT_MATCH_QUOTA is not set CONFIG_NETFILTER_XT_MATCH_REALM=m CONFIG_NETFILTER_XT_MATCH_SCTP=m CONFIG_NETFILTER_XT_MATCH_STATE=m +# CONFIG_NETFILTER_XT_MATCH_STATISTIC is not set CONFIG_NETFILTER_XT_MATCH_STRING=m CONFIG_NETFILTER_XT_MATCH_TCPMSS=m @@ -267,6 +285,7 @@ CONFIG_IP_NF_TFTP=m CONFIG_IP_NF_AMANDA=m # CONFIG_IP_NF_PPTP is not set # CONFIG_IP_NF_H323 is not set +# CONFIG_IP_NF_SIP is not set CONFIG_IP_NF_QUEUE=m CONFIG_IP_NF_IPTABLES=m CONFIG_IP_NF_MATCH_IPRANGE=m @@ -360,6 +379,7 @@ CONFIG_STANDALONE=y CONFIG_PREVENT_FIRMWARE_BUILD=y CONFIG_FW_LOADER=m # CONFIG_DEBUG_DRIVER is not set +# CONFIG_SYS_HYPERVISOR is not set # # Connector - unified userspace <-> kernelspace linker @@ -396,6 +416,7 @@ CONFIG_BLK_DEV_NBD=m CONFIG_BLK_DEV_RAM=y CONFIG_BLK_DEV_RAM_COUNT=16 CONFIG_BLK_DEV_RAM_SIZE=65536 +CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024 CONFIG_BLK_DEV_INITRD=y # CONFIG_CDROM_PKTCDVD is not set # CONFIG_ATA_OVER_ETH is not set @@ -453,6 +474,7 @@ CONFIG_SCSI_FC_ATTRS=y # CONFIG_MEGARAID_LEGACY is not set # CONFIG_MEGARAID_SAS is not set # CONFIG_SCSI_SATA is not set +# CONFIG_SCSI_HPTIOP is not set # CONFIG_SCSI_BUSLOGIC is not set # CONFIG_SCSI_DMX3191D is not set # CONFIG_SCSI_EATA is not set @@ -464,7 +486,6 @@ CONFIG_SCSI_IBMVSCSI=m # CONFIG_SCSI_INIA100 is not set # CONFIG_SCSI_SYM53C8XX_2 is not set # CONFIG_SCSI_IPR is not set -# CONFIG_SCSI_QLOGIC_FC is not set # CONFIG_SCSI_QLOGIC_1280 is not set # CONFIG_SCSI_QLA_FC is not set # CONFIG_SCSI_LPFC is not set @@ -481,9 +502,7 @@ CONFIG_MD_LINEAR=y CONFIG_MD_RAID0=y CONFIG_MD_RAID1=y CONFIG_MD_RAID10=m -CONFIG_MD_RAID5=y -# CONFIG_MD_RAID5_RESHAPE is not set -CONFIG_MD_RAID6=m +# CONFIG_MD_RAID456 is not set CONFIG_MD_MULTIPATH=m CONFIG_MD_FAULTY=m CONFIG_BLK_DEV_DM=y @@ -596,6 +615,7 @@ CONFIG_E1000=m # CONFIG_CHELSIO_T1 is not set # CONFIG_IXGB is not set # CONFIG_S2IO is not set +# CONFIG_MYRI10GE is not set # # Token Ring devices @@ -696,6 +716,7 @@ CONFIG_SERIAL_ICOM=m CONFIG_UNIX98_PTYS=y CONFIG_LEGACY_PTYS=y CONFIG_LEGACY_PTY_COUNT=256 +# CONFIG_BRIQ_PANEL is not set # # IPMI @@ -706,6 +727,7 @@ CONFIG_LEGACY_PTY_COUNT=256 # Watchdog Cards # # CONFIG_WATCHDOG is not set +# CONFIG_HW_RANDOM is not set CONFIG_GEN_RTC=y # CONFIG_GEN_RTC_X is not set # CONFIG_DTLK is not set @@ -741,7 +763,6 @@ CONFIG_MAX_RAW_DEVS=256 # # Dallas's 1-wire bus # -# CONFIG_W1 is not set # # Hardware Monitoring support @@ -757,6 +778,7 @@ CONFIG_MAX_RAW_DEVS=256 # Multimedia devices # # CONFIG_VIDEO_DEV is not set +CONFIG_VIDEO_V4L2=y # # Digital Video Broadcasting Devices @@ -766,7 +788,9 @@ CONFIG_MAX_RAW_DEVS=256 # # Graphics support # +CONFIG_FIRMWARE_EDID=y # CONFIG_FB is not set +# CONFIG_BACKLIGHT_LCD_SUPPORT is not set # # Sound @@ -800,6 +824,14 @@ CONFIG_USB_ARCH_HAS_EHCI=y # # CONFIG_NEW_LEDS is not set +# +# LED drivers +# + +# +# LED Triggers +# + # # InfiniBand support # @@ -814,6 +846,19 @@ CONFIG_USB_ARCH_HAS_EHCI=y # # CONFIG_RTC_CLASS is not set +# +# DMA Engine support +# +# CONFIG_DMA_ENGINE is not set + +# +# DMA Clients +# + +# +# DMA Devices +# + # # File systems # @@ -843,7 +888,6 @@ CONFIG_JFS_SECURITY=y # CONFIG_JFS_STATISTICS is not set CONFIG_FS_POSIX_ACL=y CONFIG_XFS_FS=m -CONFIG_XFS_EXPORT=y # CONFIG_XFS_QUOTA is not set CONFIG_XFS_SECURITY=y CONFIG_XFS_POSIX_ACL=y @@ -852,6 +896,7 @@ CONFIG_XFS_POSIX_ACL=y # CONFIG_MINIX_FS is not set # CONFIG_ROMFS_FS is not set CONFIG_INOTIFY=y +CONFIG_INOTIFY_USER=y # CONFIG_QUOTA is not set CONFIG_DNOTIFY=y CONFIG_AUTOFS_FS=m @@ -933,8 +978,10 @@ CONFIG_RPCSEC_GSS_SPKM3=m # CONFIG_SMB_FS is not set CONFIG_CIFS=m # CONFIG_CIFS_STATS is not set +# CONFIG_CIFS_WEAK_PW_HASH is not set CONFIG_CIFS_XATTR=y CONFIG_CIFS_POSIX=y +# CONFIG_CIFS_DEBUG2 is not set # CONFIG_CIFS_EXPERIMENTAL is not set # CONFIG_NCP_FS is not set # CONFIG_CODA_FS is not set @@ -1013,10 +1060,12 @@ CONFIG_TEXTSEARCH=y CONFIG_TEXTSEARCH_KMP=m CONFIG_TEXTSEARCH_BM=m CONFIG_TEXTSEARCH_FSM=m +CONFIG_PLIST=y # # Instrumentation Support # +# CONFIG_PROFILING is not set # CONFIG_KPROBES is not set # @@ -1024,14 +1073,19 @@ CONFIG_TEXTSEARCH_FSM=m # # CONFIG_PRINTK_TIME is not set CONFIG_MAGIC_SYSRQ=y +# CONFIG_UNUSED_SYMBOLS is not set CONFIG_DEBUG_KERNEL=y CONFIG_LOG_BUF_SHIFT=17 CONFIG_DETECT_SOFTLOCKUP=y # CONFIG_SCHEDSTATS is not set # CONFIG_DEBUG_SLAB is not set -# CONFIG_DEBUG_MUTEXES is not set +# CONFIG_DEBUG_RT_MUTEXES is not set +# CONFIG_RT_MUTEX_TESTER is not set # CONFIG_DEBUG_SPINLOCK is not set +# CONFIG_DEBUG_MUTEXES is not set +# CONFIG_DEBUG_RWSEMS is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set +# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set # CONFIG_DEBUG_KOBJECT is not set # CONFIG_DEBUG_INFO is not set CONFIG_DEBUG_FS=y @@ -1042,11 +1096,7 @@ CONFIG_DEBUG_STACKOVERFLOW=y CONFIG_DEBUG_STACK_USAGE=y # CONFIG_DEBUGGER is not set CONFIG_IRQSTACKS=y -# CONFIG_PPC_EARLY_DEBUG_LPAR is not set -# CONFIG_PPC_EARLY_DEBUG_G5 is not set -# CONFIG_PPC_EARLY_DEBUG_RTAS is not set -# CONFIG_PPC_EARLY_DEBUG_MAPLE is not set -# CONFIG_PPC_EARLY_DEBUG_ISERIES is not set +# CONFIG_PPC_EARLY_DEBUG is not set # # Security options diff --git a/arch/powerpc/configs/pseries_defconfig b/arch/powerpc/configs/pseries_defconfig index 31708ad4574e..c18e8600d78f 100644 --- a/arch/powerpc/configs/pseries_defconfig +++ b/arch/powerpc/configs/pseries_defconfig @@ -1,13 +1,14 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.17-rc4 -# Sun May 28 07:26:56 2006 +# Linux kernel version: 2.6.18-rc3 +# Tue Aug 8 09:14:48 2006 # CONFIG_PPC64=y CONFIG_64BIT=y CONFIG_PPC_MERGE=y CONFIG_MMU=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_IRQ_PER_CPU=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_GENERIC_HWEIGHT=y CONFIG_GENERIC_CALIBRATE_DELAY=y @@ -35,6 +36,7 @@ CONFIG_PPC_STD_MMU=y CONFIG_VIRT_CPU_ACCOUNTING=y CONFIG_SMP=y CONFIG_NR_CPUS=128 +CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" # # Code maturity level options @@ -52,6 +54,7 @@ CONFIG_SWAP=y CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y # CONFIG_BSD_PROCESS_ACCT is not set +# CONFIG_TASKSTATS is not set CONFIG_SYSCTL=y CONFIG_AUDIT=y CONFIG_AUDITSYSCALL=y @@ -70,10 +73,12 @@ CONFIG_PRINTK=y CONFIG_BUG=y CONFIG_ELF_CORE=y CONFIG_BASE_FULL=y +CONFIG_RT_MUTEXES=y CONFIG_FUTEX=y CONFIG_EPOLL=y CONFIG_SHMEM=y CONFIG_SLAB=y +CONFIG_VM_EVENT_COUNTERS=y # CONFIG_TINY_SHMEM is not set CONFIG_BASE_SMALL=0 # CONFIG_SLOB is not set @@ -118,6 +123,9 @@ CONFIG_PPC_PSERIES=y # CONFIG_PPC_PMAC is not set # CONFIG_PPC_MAPLE is not set # CONFIG_PPC_CELL is not set +# CONFIG_PPC_CELL_NATIVE is not set +# CONFIG_PPC_IBM_CELL_BLADE is not set +# CONFIG_UDBG_RTAS_CONSOLE is not set CONFIG_XICS=y # CONFIG_U3_DART is not set CONFIG_MPIC=y @@ -149,6 +157,7 @@ CONFIG_BINFMT_MISC=m CONFIG_FORCE_MAX_ZONEORDER=13 CONFIG_IOMMU_VMERGE=y CONFIG_HOTPLUG_CPU=y +CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_KEXEC=y # CONFIG_CRASH_DUMP is not set CONFIG_IRQ_ALL_CPUS=y @@ -173,6 +182,7 @@ CONFIG_SPARSEMEM_EXTREME=y # CONFIG_MEMORY_HOTPLUG is not set CONFIG_SPLIT_PTLOCK_CPUS=4 CONFIG_MIGRATION=y +CONFIG_RESOURCES_64BIT=y CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID=y # CONFIG_PPC_64K_PAGES is not set CONFIG_SCHED_SMT=y @@ -190,6 +200,7 @@ CONFIG_PPC_I8259=y # CONFIG_PPC_INDIRECT_PCI is not set CONFIG_PCI=y CONFIG_PCI_DOMAINS=y +# CONFIG_PCIEPORTBUS is not set # CONFIG_PCI_DEBUG is not set # @@ -238,6 +249,8 @@ CONFIG_INET_ESP=m CONFIG_INET_IPCOMP=m CONFIG_INET_XFRM_TUNNEL=m CONFIG_INET_TUNNEL=y +CONFIG_INET_XFRM_MODE_TRANSPORT=y +CONFIG_INET_XFRM_MODE_TUNNEL=y CONFIG_INET_DIAG=y CONFIG_INET_TCP_DIAG=y # CONFIG_TCP_CONG_ADVANCED is not set @@ -250,6 +263,7 @@ CONFIG_TCP_CONG_BIC=y # CONFIG_IPV6 is not set # CONFIG_INET6_XFRM_TUNNEL is not set # CONFIG_INET6_TUNNEL is not set +# CONFIG_NETWORK_SECMARK is not set CONFIG_NETFILTER=y # CONFIG_NETFILTER_DEBUG is not set @@ -277,6 +291,7 @@ CONFIG_IP_NF_TFTP=m CONFIG_IP_NF_AMANDA=m # CONFIG_IP_NF_PPTP is not set # CONFIG_IP_NF_H323 is not set +# CONFIG_IP_NF_SIP is not set CONFIG_IP_NF_QUEUE=m # @@ -316,6 +331,7 @@ CONFIG_LLC=y # Network testing # # CONFIG_NET_PKTGEN is not set +# CONFIG_NET_TCPPROBE is not set # CONFIG_HAMRADIO is not set # CONFIG_IRDA is not set # CONFIG_BT is not set @@ -332,6 +348,7 @@ CONFIG_STANDALONE=y CONFIG_PREVENT_FIRMWARE_BUILD=y CONFIG_FW_LOADER=y # CONFIG_DEBUG_DRIVER is not set +# CONFIG_SYS_HYPERVISOR is not set # # Connector - unified userspace <-> kernelspace linker @@ -352,6 +369,7 @@ CONFIG_PARPORT_PC=m # CONFIG_PARPORT_PC_FIFO is not set # CONFIG_PARPORT_PC_SUPERIO is not set # CONFIG_PARPORT_GSC is not set +# CONFIG_PARPORT_AX88796 is not set # CONFIG_PARPORT_1284 is not set # @@ -376,6 +394,7 @@ CONFIG_BLK_DEV_NBD=m CONFIG_BLK_DEV_RAM=y CONFIG_BLK_DEV_RAM_COUNT=16 CONFIG_BLK_DEV_RAM_SIZE=65536 +CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024 CONFIG_BLK_DEV_INITRD=y # CONFIG_CDROM_PKTCDVD is not set # CONFIG_ATA_OVER_ETH is not set @@ -487,6 +506,7 @@ CONFIG_SCSI_SAS_ATTRS=m # CONFIG_MEGARAID_LEGACY is not set # CONFIG_MEGARAID_SAS is not set # CONFIG_SCSI_SATA is not set +# CONFIG_SCSI_HPTIOP is not set # CONFIG_SCSI_BUSLOGIC is not set # CONFIG_SCSI_DMX3191D is not set # CONFIG_SCSI_EATA is not set @@ -508,12 +528,6 @@ CONFIG_SCSI_IPR_TRACE=y CONFIG_SCSI_IPR_DUMP=y # CONFIG_SCSI_QLOGIC_1280 is not set CONFIG_SCSI_QLA_FC=m -CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE=y -CONFIG_SCSI_QLA21XX=m -CONFIG_SCSI_QLA22XX=m -CONFIG_SCSI_QLA2300=m -CONFIG_SCSI_QLA2322=m -CONFIG_SCSI_QLA24XX=m CONFIG_SCSI_LPFC=m # CONFIG_SCSI_DC395x is not set # CONFIG_SCSI_DC390T is not set @@ -528,9 +542,7 @@ CONFIG_MD_LINEAR=y CONFIG_MD_RAID0=y CONFIG_MD_RAID1=y CONFIG_MD_RAID10=m -CONFIG_MD_RAID5=y -CONFIG_MD_RAID5_RESHAPE=y -CONFIG_MD_RAID6=m +# CONFIG_MD_RAID456 is not set CONFIG_MD_MULTIPATH=m CONFIG_MD_FAULTY=m CONFIG_BLK_DEV_DM=y @@ -651,6 +663,7 @@ CONFIG_IXGB=m # CONFIG_IXGB_NAPI is not set CONFIG_S2IO=m # CONFIG_S2IO_NAPI is not set +# CONFIG_MYRI10GE is not set # # Token Ring devices @@ -754,6 +767,7 @@ CONFIG_SERIO_LIBPS2=y CONFIG_VT=y CONFIG_VT_CONSOLE=y CONFIG_HW_CONSOLE=y +# CONFIG_VT_HW_CONSOLE_BINDING is not set # CONFIG_SERIAL_NONSTANDARD is not set # @@ -776,6 +790,7 @@ CONFIG_SERIAL_JSM=m CONFIG_UNIX98_PTYS=y CONFIG_LEGACY_PTYS=y CONFIG_LEGACY_PTY_COUNT=256 +# CONFIG_BRIQ_PANEL is not set # CONFIG_PRINTER is not set # CONFIG_PPDEV is not set # CONFIG_TIPAR is not set @@ -793,6 +808,7 @@ CONFIG_HVCS=m # Watchdog Cards # # CONFIG_WATCHDOG is not set +# CONFIG_HW_RANDOM is not set CONFIG_GEN_RTC=y # CONFIG_GEN_RTC_X is not set # CONFIG_DTLK is not set @@ -839,6 +855,7 @@ CONFIG_I2C_ALGOBIT=y # CONFIG_I2C_I810 is not set # CONFIG_I2C_PIIX4 is not set # CONFIG_I2C_NFORCE2 is not set +# CONFIG_I2C_OCORES is not set # CONFIG_I2C_PARPORT is not set # CONFIG_I2C_PARPORT_LIGHT is not set # CONFIG_I2C_PROSAVAGE is not set @@ -876,7 +893,6 @@ CONFIG_I2C_ALGOBIT=y # # Dallas's 1-wire bus # -# CONFIG_W1 is not set # # Hardware Monitoring support @@ -892,6 +908,7 @@ CONFIG_I2C_ALGOBIT=y # Multimedia devices # # CONFIG_VIDEO_DEV is not set +CONFIG_VIDEO_V4L2=y # # Digital Video Broadcasting Devices @@ -902,19 +919,19 @@ CONFIG_I2C_ALGOBIT=y # # Graphics support # +CONFIG_FIRMWARE_EDID=y CONFIG_FB=y CONFIG_FB_CFB_FILLRECT=y CONFIG_FB_CFB_COPYAREA=y CONFIG_FB_CFB_IMAGEBLIT=y CONFIG_FB_MACMODES=y -CONFIG_FB_FIRMWARE_EDID=y +# CONFIG_FB_BACKLIGHT is not set CONFIG_FB_MODE_HELPERS=y CONFIG_FB_TILEBLITTING=y # CONFIG_FB_CIRRUS is not set # CONFIG_FB_PM2 is not set # CONFIG_FB_CYBER2000 is not set CONFIG_FB_OF=y -# CONFIG_FB_CT65550 is not set # CONFIG_FB_ASILIANT is not set # CONFIG_FB_IMSTT is not set # CONFIG_FB_VGA16 is not set @@ -993,6 +1010,7 @@ CONFIG_USB_DEVICEFS=y CONFIG_USB_EHCI_HCD=y # CONFIG_USB_EHCI_SPLIT_ISO is not set # CONFIG_USB_EHCI_ROOT_HUB_TT is not set +# CONFIG_USB_EHCI_TT_NEWSCHED is not set # CONFIG_USB_ISP116X_HCD is not set CONFIG_USB_OHCI_HCD=y # CONFIG_USB_OHCI_BIG_ENDIAN is not set @@ -1083,10 +1101,12 @@ CONFIG_USB_MON=y # CONFIG_USB_LEGOTOWER is not set # CONFIG_USB_LCD is not set # CONFIG_USB_LED is not set +# CONFIG_USB_CYPRESS_CY7C63 is not set # CONFIG_USB_CYTHERM is not set # CONFIG_USB_PHIDGETKIT is not set # CONFIG_USB_PHIDGETSERVO is not set # CONFIG_USB_IDMOUSE is not set +# CONFIG_USB_APPLEDISPLAY is not set # CONFIG_USB_SISUSBVGA is not set # CONFIG_USB_LD is not set # CONFIG_USB_TEST is not set @@ -1124,12 +1144,14 @@ CONFIG_USB_MON=y CONFIG_INFINIBAND=m CONFIG_INFINIBAND_USER_MAD=m CONFIG_INFINIBAND_USER_ACCESS=m +CONFIG_INFINIBAND_ADDR_TRANS=y CONFIG_INFINIBAND_MTHCA=m CONFIG_INFINIBAND_MTHCA_DEBUG=y CONFIG_INFINIBAND_IPOIB=m CONFIG_INFINIBAND_IPOIB_DEBUG=y # CONFIG_INFINIBAND_IPOIB_DEBUG_DATA is not set CONFIG_INFINIBAND_SRP=m +# CONFIG_INFINIBAND_ISER is not set # # EDAC - error detection and reporting (RAS) (EXPERIMENTAL) @@ -1140,6 +1162,19 @@ CONFIG_INFINIBAND_SRP=m # # CONFIG_RTC_CLASS is not set +# +# DMA Engine support +# +# CONFIG_DMA_ENGINE is not set + +# +# DMA Clients +# + +# +# DMA Devices +# + # # File systems # @@ -1169,15 +1204,16 @@ CONFIG_JFS_SECURITY=y # CONFIG_JFS_STATISTICS is not set CONFIG_FS_POSIX_ACL=y CONFIG_XFS_FS=m -CONFIG_XFS_EXPORT=y # CONFIG_XFS_QUOTA is not set CONFIG_XFS_SECURITY=y CONFIG_XFS_POSIX_ACL=y # CONFIG_XFS_RT is not set CONFIG_OCFS2_FS=m +CONFIG_OCFS2_DEBUG_MASKLOG=y # CONFIG_MINIX_FS is not set # CONFIG_ROMFS_FS is not set CONFIG_INOTIFY=y +CONFIG_INOTIFY_USER=y # CONFIG_QUOTA is not set CONFIG_DNOTIFY=y # CONFIG_AUTOFS_FS is not set @@ -1259,8 +1295,10 @@ CONFIG_RPCSEC_GSS_SPKM3=m # CONFIG_SMB_FS is not set CONFIG_CIFS=m # CONFIG_CIFS_STATS is not set +# CONFIG_CIFS_WEAK_PW_HASH is not set CONFIG_CIFS_XATTR=y CONFIG_CIFS_POSIX=y +# CONFIG_CIFS_DEBUG2 is not set # CONFIG_CIFS_EXPERIMENTAL is not set # CONFIG_NCP_FS is not set # CONFIG_CODA_FS is not set @@ -1326,6 +1364,9 @@ CONFIG_CRC32=y CONFIG_LIBCRC32C=m CONFIG_ZLIB_INFLATE=y CONFIG_ZLIB_DEFLATE=m +CONFIG_TEXTSEARCH=y +CONFIG_TEXTSEARCH_KMP=m +CONFIG_PLIST=y # # Instrumentation Support @@ -1339,14 +1380,19 @@ CONFIG_KPROBES=y # # CONFIG_PRINTK_TIME is not set CONFIG_MAGIC_SYSRQ=y +# CONFIG_UNUSED_SYMBOLS is not set CONFIG_DEBUG_KERNEL=y CONFIG_LOG_BUF_SHIFT=17 CONFIG_DETECT_SOFTLOCKUP=y # CONFIG_SCHEDSTATS is not set # CONFIG_DEBUG_SLAB is not set -# CONFIG_DEBUG_MUTEXES is not set +# CONFIG_DEBUG_RT_MUTEXES is not set +# CONFIG_RT_MUTEX_TESTER is not set # CONFIG_DEBUG_SPINLOCK is not set +# CONFIG_DEBUG_MUTEXES is not set +# CONFIG_DEBUG_RWSEMS is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set +# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set # CONFIG_DEBUG_KOBJECT is not set # CONFIG_DEBUG_INFO is not set CONFIG_DEBUG_FS=y From 47585d8f5dea10dea49c948f1fb13ef7632409c7 Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Wed, 5 Jul 2006 14:39:42 +1000 Subject: [PATCH 173/488] [POWERPC] Move some kexec logic into machine_kexec.c We're missing a few functions for kexec to compile on 32-bit. There's nothing really 64-bit specific about the 64-bit versions, so make them generic rather than adding empty definitions for 32-bit. Signed-off-by: Michael Ellerman Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/machine_kexec.c | 56 ++++++++++++++++++++++++++ arch/powerpc/kernel/machine_kexec_64.c | 56 -------------------------- 2 files changed, 56 insertions(+), 56 deletions(-) diff --git a/arch/powerpc/kernel/machine_kexec.c b/arch/powerpc/kernel/machine_kexec.c index a81ca1b841ec..e60a0c544d63 100644 --- a/arch/powerpc/kernel/machine_kexec.c +++ b/arch/powerpc/kernel/machine_kexec.c @@ -13,6 +13,7 @@ #include #include #include +#include void machine_crash_shutdown(struct pt_regs *regs) { @@ -59,3 +60,58 @@ NORET_TYPE void machine_kexec(struct kimage *image) } for(;;); } + +static int __init early_parse_crashk(char *p) +{ + unsigned long size; + + if (!p) + return 1; + + size = memparse(p, &p); + + if (*p == '@') + crashk_res.start = memparse(p + 1, &p); + else + crashk_res.start = KDUMP_KERNELBASE; + + crashk_res.end = crashk_res.start + size - 1; + + return 0; +} +early_param("crashkernel", early_parse_crashk); + +void __init reserve_crashkernel(void) +{ + unsigned long size; + + if (crashk_res.start == 0) + return; + + /* We might have got these values via the command line or the + * device tree, either way sanitise them now. */ + + size = crashk_res.end - crashk_res.start + 1; + + if (crashk_res.start != KDUMP_KERNELBASE) + printk("Crash kernel location must be 0x%x\n", + KDUMP_KERNELBASE); + + crashk_res.start = KDUMP_KERNELBASE; + size = PAGE_ALIGN(size); + crashk_res.end = crashk_res.start + size - 1; + + /* Crash kernel trumps memory limit */ + if (memory_limit && memory_limit <= crashk_res.end) { + memory_limit = crashk_res.end + 1; + printk("Adjusted memory limit for crashkernel, now 0x%lx\n", + memory_limit); + } + + lmb_reserve(crashk_res.start, size); +} + +int overlaps_crashkernel(unsigned long start, unsigned long size) +{ + return (start + size) > crashk_res.start && start <= crashk_res.end; +} diff --git a/arch/powerpc/kernel/machine_kexec_64.c b/arch/powerpc/kernel/machine_kexec_64.c index b438d45a068c..b6db19d61435 100644 --- a/arch/powerpc/kernel/machine_kexec_64.c +++ b/arch/powerpc/kernel/machine_kexec_64.c @@ -21,7 +21,6 @@ #include #include #include -#include #include #include /* _end */ #include @@ -385,58 +384,3 @@ static int __init kexec_setup(void) return 0; } __initcall(kexec_setup); - -static int __init early_parse_crashk(char *p) -{ - unsigned long size; - - if (!p) - return 1; - - size = memparse(p, &p); - - if (*p == '@') - crashk_res.start = memparse(p + 1, &p); - else - crashk_res.start = KDUMP_KERNELBASE; - - crashk_res.end = crashk_res.start + size - 1; - - return 0; -} -early_param("crashkernel", early_parse_crashk); - -void __init reserve_crashkernel(void) -{ - unsigned long size; - - if (crashk_res.start == 0) - return; - - /* We might have got these values via the command line or the - * device tree, either way sanitise them now. */ - - size = crashk_res.end - crashk_res.start + 1; - - if (crashk_res.start != KDUMP_KERNELBASE) - printk("Crash kernel location must be 0x%x\n", - KDUMP_KERNELBASE); - - crashk_res.start = KDUMP_KERNELBASE; - size = PAGE_ALIGN(size); - crashk_res.end = crashk_res.start + size - 1; - - /* Crash kernel trumps memory limit */ - if (memory_limit && memory_limit <= crashk_res.end) { - memory_limit = crashk_res.end + 1; - printk("Adjusted memory limit for crashkernel, now 0x%lx\n", - memory_limit); - } - - lmb_reserve(crashk_res.start, size); -} - -int overlaps_crashkernel(unsigned long start, unsigned long size) -{ - return (start + size) > crashk_res.start && start <= crashk_res.end; -} From b6f35b4966e0ae59cec45e5292b100698d12dc5f Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Wed, 5 Jul 2006 14:39:43 +1000 Subject: [PATCH 174/488] [POWERPC] Make crash.c work on 32-bit and 64-bit To compile kexec on 32-bit we need a few more bits and pieces. Rather than add empty definitions, we can make crash.c work on 32-bit, with only a couple of kludges. Signed-off-by: Michael Ellerman Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/Makefile | 4 ++-- arch/powerpc/kernel/crash.c | 11 +++++++++++ arch/powerpc/kernel/machine_kexec_64.c | 1 - arch/powerpc/kernel/traps.c | 3 --- include/asm-powerpc/kexec.h | 3 +-- 5 files changed, 14 insertions(+), 8 deletions(-) diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile index 814f242aeb8c..956c2e5564b7 100644 --- a/arch/powerpc/kernel/Makefile +++ b/arch/powerpc/kernel/Makefile @@ -67,9 +67,9 @@ pci64-$(CONFIG_PPC64) += pci_64.o pci_dn.o pci_iommu.o \ pci_direct_iommu.o iomap.o pci32-$(CONFIG_PPC32) := pci_32.o obj-$(CONFIG_PCI) += $(pci64-y) $(pci32-y) -kexec-$(CONFIG_PPC64) := machine_kexec_64.o crash.o +kexec-$(CONFIG_PPC64) := machine_kexec_64.o kexec-$(CONFIG_PPC32) := machine_kexec_32.o -obj-$(CONFIG_KEXEC) += machine_kexec.o $(kexec-y) +obj-$(CONFIG_KEXEC) += machine_kexec.o crash.o $(kexec-y) ifeq ($(CONFIG_PPC_ISERIES),y) $(obj)/head_64.o: $(obj)/lparmap.s diff --git a/arch/powerpc/kernel/crash.c b/arch/powerpc/kernel/crash.c index 358cecdc6aef..f04c18e08b8b 100644 --- a/arch/powerpc/kernel/crash.c +++ b/arch/powerpc/kernel/crash.c @@ -44,6 +44,7 @@ /* This keeps a track of which one is crashing cpu. */ int crashing_cpu = -1; static cpumask_t cpus_in_crash = CPU_MASK_NONE; +cpumask_t cpus_in_sr = CPU_MASK_NONE; static u32 *append_elf_note(u32 *buf, char *name, unsigned type, void *data, size_t data_len) @@ -139,7 +140,13 @@ void crash_ipi_callback(struct pt_regs *regs) if (ppc_md.kexec_cpu_down) ppc_md.kexec_cpu_down(1, 1); + +#ifdef CONFIG_PPC64 kexec_smp_wait(); +#else + for (;;); /* FIXME */ +#endif + /* NOTREACHED */ } @@ -255,7 +262,11 @@ static void crash_kexec_prepare_cpus(int cpu) * * do this if kexec in setup.c ? */ +#ifdef CONFIG_PPC64 smp_release_cpus(); +#else + /* FIXME */ +#endif } void crash_kexec_secondary(struct pt_regs *regs) diff --git a/arch/powerpc/kernel/machine_kexec_64.c b/arch/powerpc/kernel/machine_kexec_64.c index b6db19d61435..be58985c7681 100644 --- a/arch/powerpc/kernel/machine_kexec_64.c +++ b/arch/powerpc/kernel/machine_kexec_64.c @@ -10,7 +10,6 @@ */ -#include #include #include #include diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index 5147175f921c..125761aaa40b 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -55,9 +55,6 @@ #ifdef CONFIG_PPC64 /* XXX */ #define _IO_BASE pci_io_base -#ifdef CONFIG_KEXEC -cpumask_t cpus_in_sr = CPU_MASK_NONE; -#endif #endif #ifdef CONFIG_DEBUGGER diff --git a/include/asm-powerpc/kexec.h b/include/asm-powerpc/kexec.h index 8f7fd5cfec34..11cbdf81fd2e 100644 --- a/include/asm-powerpc/kexec.h +++ b/include/asm-powerpc/kexec.h @@ -32,6 +32,7 @@ #endif #ifndef __ASSEMBLY__ +#include #ifdef CONFIG_KEXEC @@ -109,7 +110,6 @@ static inline void crash_setup_regs(struct pt_regs *newregs, #define MAX_NOTE_BYTES 1024 -#ifdef __powerpc64__ extern void kexec_smp_wait(void); /* get and clear naca physid, wait for master to copy new code to 0 */ extern int crashing_cpu; @@ -119,7 +119,6 @@ static inline int kexec_sr_activated(int cpu) { return cpu_isset(cpu,cpus_in_sr); } -#endif /* __powerpc64 __ */ struct kimage; struct pt_regs; From 83db3dde2604d48e30a468c82da163dd1a8602b3 Mon Sep 17 00:00:00 2001 From: Ananth N Mavinakayanahalli Date: Fri, 11 Aug 2006 17:01:34 +0530 Subject: [PATCH 175/488] [POWERPC] kprobes: Fix possible system crash during out-of-line single-stepping - On archs that have no-exec support, we vmalloc() a executable scratch area of PAGE_SIZE and divide it up into an array of slots of maximum instruction size for that arch - On a kprobe registration, the original instruction is copied to the first available free slot, so if multiple kprobes are registered, chances are, they get contiguous slots - On POWER4, due to not having coherent icaches, we could hit a situation where a probe that is registered on one processor, is hit immediately on another. This second processor could have fetched the stream of text from the out-of-line single-stepping area *before* the probe registration completed, possibly due to an earlier (and a different) kprobe hit and hence would see stale data at the slot. Executing such an arbitrary instruction lead to a problem as reported in LTC bugzilla 23555. The correct solution is to call flush_icache_range() as soon as the instruction is copied for out-of-line single-stepping, so the correct instruction is seen on all processors. Thanks to Will Schmidt who tracked this down. Signed-off-by: Ananth N Mavinakayanahalli Acked-by: Will Schmidt Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/kprobes.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/powerpc/kernel/kprobes.c b/arch/powerpc/kernel/kprobes.c index 9f0898c89759..cd65c367b8b6 100644 --- a/arch/powerpc/kernel/kprobes.c +++ b/arch/powerpc/kernel/kprobes.c @@ -61,6 +61,8 @@ int __kprobes arch_prepare_kprobe(struct kprobe *p) if (!ret) { memcpy(p->ainsn.insn, p->addr, MAX_INSN_SIZE * sizeof(kprobe_opcode_t)); p->opcode = *p->addr; + flush_icache_range((unsigned long)p->ainsn.insn, + (unsigned long)p->ainsn.insn + sizeof(kprobe_opcode_t)); } return ret; From e5c14ce118ab6a96afb2af5c4ec9727b03ab1936 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Thu, 17 Aug 2006 03:59:27 +0200 Subject: [PATCH 176/488] [POWERPC] Fix irq radix tree remapping typo The code for using the radix tree for reverse mapping of interrupts has a typo that causes it to create incorrect mappings if the software and hardware numbers happen to be different. This would, among others, cause the IDE interrupt to fail on js20's. This fixes it. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/irq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c index 01bdae35cb55..7ee685433319 100644 --- a/arch/powerpc/kernel/irq.c +++ b/arch/powerpc/kernel/irq.c @@ -693,7 +693,7 @@ unsigned int irq_radix_revmap(struct irq_host *host, /* If not there, try to insert it */ virq = irq_find_mapping(host, hwirq); if (virq != NO_IRQ) - radix_tree_insert(tree, virq, &irq_map[virq]); + radix_tree_insert(tree, hwirq, &irq_map[virq]); bail: spin_unlock_irqrestore(&irq_big_lock, flags); return virq; From 9a936a2e0526089194159eae31238e36b1c19e74 Mon Sep 17 00:00:00 2001 From: Olof Johansson Date: Sun, 6 Aug 2006 20:51:25 -0500 Subject: [PATCH 177/488] [POWERPC] powerpc: Clear HID0 attention enable on PPC970 at boot time Clear HID0[en_attn] at CPU init time on PPC970. Closes CVE-2006-4093. Signed-off-by: Olof Johansson Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/cpu_setup_power4.S | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/powerpc/kernel/cpu_setup_power4.S b/arch/powerpc/kernel/cpu_setup_power4.S index f69af2c5d7b3..76e97aa71c45 100644 --- a/arch/powerpc/kernel/cpu_setup_power4.S +++ b/arch/powerpc/kernel/cpu_setup_power4.S @@ -76,6 +76,8 @@ _GLOBAL(__setup_cpu_ppc970) mfspr r0,SPRN_HID0 li r11,5 /* clear DOZE and SLEEP */ rldimi r0,r11,52,8 /* set NAP and DPM */ + li r11,0 + rldimi r0,r11,32,31 /* clear EN_ATTN */ mtspr SPRN_HID0,r0 mfspr r0,SPRN_HID0 mfspr r0,SPRN_HID0 From 7ea49ed73c8d0d0bdf7c11fc18c61572d2d22176 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Mon, 14 Aug 2006 17:08:36 -0700 Subject: [PATCH 178/488] [VLAN]: Make sure bonding packet drop checks get done in hwaccel RX path. Since __vlan_hwaccel_rx() is essentially bypassing the netif_receive_skb() call that would have occurred if we did the VLAN decapsulation in software, we are missing the skb_bond() call and the assosciated checks it does. Export those checks via an inline function, skb_bond_should_drop(), and use this in __vlan_hwaccel_rx(). Signed-off-by: David S. Miller --- include/linux/if_vlan.h | 5 +++++ include/linux/netdevice.h | 24 ++++++++++++++++++++++++ net/core/dev.c | 18 +----------------- 3 files changed, 30 insertions(+), 17 deletions(-) diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h index 383627ad328f..ab2740832742 100644 --- a/include/linux/if_vlan.h +++ b/include/linux/if_vlan.h @@ -155,6 +155,11 @@ static inline int __vlan_hwaccel_rx(struct sk_buff *skb, { struct net_device_stats *stats; + if (skb_bond_should_drop(skb)) { + dev_kfree_skb_any(skb); + return NET_RX_DROP; + } + skb->dev = grp->vlan_devices[vlan_tag & VLAN_VID_MASK]; if (skb->dev == NULL) { dev_kfree_skb_any(skb); diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 75f02d8c6ed3..c0c2b46face1 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1012,6 +1012,30 @@ static inline int netif_needs_gso(struct net_device *dev, struct sk_buff *skb) unlikely(skb->ip_summed != CHECKSUM_HW)); } +/* On bonding slaves other than the currently active slave, suppress + * duplicates except for 802.3ad ETH_P_SLOW and alb non-mcast/bcast. + */ +static inline int skb_bond_should_drop(struct sk_buff *skb) +{ + struct net_device *dev = skb->dev; + struct net_device *master = dev->master; + + if (master && + (dev->priv_flags & IFF_SLAVE_INACTIVE)) { + if (master->priv_flags & IFF_MASTER_ALB) { + if (skb->pkt_type != PACKET_BROADCAST && + skb->pkt_type != PACKET_MULTICAST) + return 0; + } + if (master->priv_flags & IFF_MASTER_8023AD && + skb->protocol == __constant_htons(ETH_P_SLOW)) + return 0; + + return 1; + } + return 0; +} + #endif /* __KERNEL__ */ #endif /* _LINUX_DEV_H */ diff --git a/net/core/dev.c b/net/core/dev.c index d95e2626d944..9fe96cde3e19 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -1619,26 +1619,10 @@ static inline struct net_device *skb_bond(struct sk_buff *skb) struct net_device *dev = skb->dev; if (dev->master) { - /* - * On bonding slaves other than the currently active - * slave, suppress duplicates except for 802.3ad - * ETH_P_SLOW and alb non-mcast/bcast. - */ - if (dev->priv_flags & IFF_SLAVE_INACTIVE) { - if (dev->master->priv_flags & IFF_MASTER_ALB) { - if (skb->pkt_type != PACKET_BROADCAST && - skb->pkt_type != PACKET_MULTICAST) - goto keep; - } - - if (dev->master->priv_flags & IFF_MASTER_8023AD && - skb->protocol == __constant_htons(ETH_P_SLOW)) - goto keep; - + if (skb_bond_should_drop(skb)) { kfree_skb(skb); return NULL; } -keep: skb->dev = dev->master; } From 855751125093f758871b70da2951d8b92b6368cc Mon Sep 17 00:00:00 2001 From: Suresh Siddha Date: Tue, 15 Aug 2006 00:03:01 -0700 Subject: [PATCH 179/488] [NET]: Fix potential stack overflow in net/core/utils.c On High end systems (1024 or so cpus) this can potentially cause stack overflow. Fix the stack usage. Signed-off-by: Suresh Siddha Signed-off-by: Andrew Morton Signed-off-by: David S. Miller --- net/core/utils.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/net/core/utils.c b/net/core/utils.c index 4f96f389243d..e31c90e05594 100644 --- a/net/core/utils.c +++ b/net/core/utils.c @@ -130,12 +130,13 @@ void __init net_random_init(void) static int net_random_reseed(void) { int i; - unsigned long seed[NR_CPUS]; + unsigned long seed; - get_random_bytes(seed, sizeof(seed)); for_each_possible_cpu(i) { struct nrnd_state *state = &per_cpu(net_rand_state,i); - __net_srandom(state, seed[i]); + + get_random_bytes(&seed, sizeof(seed)); + __net_srandom(state, seed); } return 0; } From deb47c66e12a645f7eec9b1c153c05ed47989439 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Tue, 15 Aug 2006 00:04:56 -0700 Subject: [PATCH 180/488] [NETFILTER]: xt_physdev build fix It needs netfilter_bridge.h for brnf_deferred_hooks Signed-off-by: Andrew Morton Signed-off-by: David S. Miller --- net/netfilter/xt_physdev.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/netfilter/xt_physdev.c b/net/netfilter/xt_physdev.c index a9f4f6f3c628..63a965467465 100644 --- a/net/netfilter/xt_physdev.c +++ b/net/netfilter/xt_physdev.c @@ -10,6 +10,7 @@ #include #include +#include #include #include #include From 640c41c77a96dbbfb74d40ae86ab75b759afb911 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Tue, 15 Aug 2006 00:06:56 -0700 Subject: [PATCH 181/488] [IPV6] lockdep: annotate __icmpv6_socket Split off __icmpv6_socket's sk->sk_dst_lock class, because it gets used from softirqs, which is safe for __icmpv6_sockets (because they never get directly used via userspace syscalls), but unsafe for normal sockets. Has no effect on non-lockdep kernels. Signed-off-by: Ingo Molnar Acked-by: Herbert Xu Signed-off-by: Andrew Morton Signed-off-by: David S. Miller --- net/ipv6/icmp.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c index 1044b6fce0d5..3d6e9a351150 100644 --- a/net/ipv6/icmp.c +++ b/net/ipv6/icmp.c @@ -712,6 +712,11 @@ discard_it: return 0; } +/* + * Special lock-class for __icmpv6_socket: + */ +static struct lock_class_key icmpv6_socket_sk_dst_lock_key; + int __init icmpv6_init(struct net_proto_family *ops) { struct sock *sk; @@ -730,6 +735,14 @@ int __init icmpv6_init(struct net_proto_family *ops) sk = per_cpu(__icmpv6_socket, i)->sk; sk->sk_allocation = GFP_ATOMIC; + /* + * Split off their lock-class, because sk->sk_dst_lock + * gets used from softirqs, which is safe for + * __icmpv6_socket (because those never get directly used + * via userspace syscalls), but unsafe for normal sockets. + */ + lockdep_set_class(&sk->sk_dst_lock, + &icmpv6_socket_sk_dst_lock_key); /* Enough space for 2 64K ICMP packets, including * sk_buff struct overhead. From bb699cbca0096aa3f5f750264ec0af080732375a Mon Sep 17 00:00:00 2001 From: Michal Ruzicka Date: Tue, 15 Aug 2006 00:20:17 -0700 Subject: [PATCH 182/488] [IPV4]: Possible leak of multicast source filter sctructure There is a leak of a socket's multicast source filter list structure on closing a socket with a multicast source filter set on an interface that does not exist any more. Signed-off-by: Michal Ruzicka Acked-by: David L Stevens Signed-off-by: David S. Miller --- net/ipv4/igmp.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c index 9f4b752f5a33..e981369ebe13 100644 --- a/net/ipv4/igmp.c +++ b/net/ipv4/igmp.c @@ -2199,13 +2199,13 @@ void ip_mc_drop_socket(struct sock *sk) struct in_device *in_dev; inet->mc_list = iml->next; - if ((in_dev = inetdev_by_index(iml->multi.imr_ifindex)) != NULL) { - (void) ip_mc_leave_src(sk, iml, in_dev); + in_dev = inetdev_by_index(iml->multi.imr_ifindex); + (void) ip_mc_leave_src(sk, iml, in_dev); + if (in_dev != NULL) { ip_mc_dec_group(in_dev, iml->multi.imr_multiaddr.s_addr); in_dev_put(in_dev); } sock_kfree_s(sk, iml, sizeof(*iml)); - } rtnl_unlock(); } From fb33f82568d32016b3b3c00819574f9526e52be3 Mon Sep 17 00:00:00 2001 From: "Jan \"Yenya\" Kasprzak" Date: Tue, 15 Aug 2006 01:33:50 -0700 Subject: [PATCH 183/488] [NET]: Terminology in ip-sysctl.txt this minor patch fixes the description of net.ipv4.tcp_mem sysctl in ip-sysctl.txt - the headline names the values "min, pressure, max", while the description uses the "low, pressure, high" values. Both tcp_rmem and tcp_wmem descriptions use the "min, pressure, max" values, so I have changed the tcp_mem to match this and not vice versa. Signed-off-by: Jan "Yenya" Kasprzak Signed-off-by: David S. Miller --- Documentation/networking/ip-sysctl.txt | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt index d46338af6002..3e0c017e7877 100644 --- a/Documentation/networking/ip-sysctl.txt +++ b/Documentation/networking/ip-sysctl.txt @@ -294,15 +294,15 @@ tcp_rmem - vector of 3 INTEGERs: min, default, max Default: 87380*2 bytes. tcp_mem - vector of 3 INTEGERs: min, pressure, max - low: below this number of pages TCP is not bothered about its + min: below this number of pages TCP is not bothered about its memory appetite. pressure: when amount of memory allocated by TCP exceeds this number of pages, TCP moderates its memory consumption and enters memory pressure mode, which is exited when memory consumption falls - under "low". + under "min". - high: number of pages allowed for queueing by all TCP sockets. + max: number of pages allowed for queueing by all TCP sockets. Defaults are calculated at boot time from amount of available memory. From 2f8af120a159a843948749ea88bcacda9779b132 Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Tue, 15 Aug 2006 01:39:10 -0700 Subject: [PATCH 184/488] [BNX2]: Fix tx race condition. Fix a subtle race condition between bnx2_start_xmit() and bnx2_tx_int() similar to the one in tg3 discovered by Herbert Xu: CPU0 CPU1 bnx2_start_xmit() if (tx_ring_full) { tx_lock bnx2_tx() if (!netif_queue_stopped) netif_stop_queue() if (!tx_ring_full) update_tx_ring netif_wake_queue() tx_unlock } Even though tx_ring is updated before the if statement in bnx2_tx_int() in program order, it can be re-ordered by the CPU as shown above. This scenario can cause the tx queue to be stopped forever if bnx2_tx_int() has just freed up the entire tx_ring. The possibility of this happening should be very rare though. The following changes are made, very much identical to the tg3 fix: 1. Add memory barrier to fix the above race condition. 2. Eliminate the private tx_lock altogether and rely solely on netif_tx_lock. This eliminates one spinlock in bnx2_start_xmit() when the ring is full. 3. Because of 2, use netif_tx_lock in bnx2_tx_int() before calling netif_wake_queue(). 4. Add memory barrier to bnx2_tx_avail(). 5. Add bp->tx_wake_thresh which is set to half the tx ring size. 6. Check for the full wake queue condition before getting netif_tx_lock in tg3_tx(). This reduces the number of unnecessary spinlocks when the tx ring is full in a steady-state condition. Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/bnx2.c | 35 +++++++++++++++++++---------------- drivers/net/bnx2.h | 12 +++++------- 2 files changed, 24 insertions(+), 23 deletions(-) diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c index db73de0d2511..2099edbbfdfd 100644 --- a/drivers/net/bnx2.c +++ b/drivers/net/bnx2.c @@ -209,8 +209,10 @@ MODULE_DEVICE_TABLE(pci, bnx2_pci_tbl); static inline u32 bnx2_tx_avail(struct bnx2 *bp) { - u32 diff = TX_RING_IDX(bp->tx_prod) - TX_RING_IDX(bp->tx_cons); + u32 diff; + smp_mb(); + diff = TX_RING_IDX(bp->tx_prod) - TX_RING_IDX(bp->tx_cons); if (diff > MAX_TX_DESC_CNT) diff = (diff & MAX_TX_DESC_CNT) - 1; return (bp->tx_ring_size - diff); @@ -1686,15 +1688,20 @@ bnx2_tx_int(struct bnx2 *bp) } bp->tx_cons = sw_cons; + /* Need to make the tx_cons update visible to bnx2_start_xmit() + * before checking for netif_queue_stopped(). Without the + * memory barrier, there is a small possibility that bnx2_start_xmit() + * will miss it and cause the queue to be stopped forever. + */ + smp_mb(); - if (unlikely(netif_queue_stopped(bp->dev))) { - spin_lock(&bp->tx_lock); + if (unlikely(netif_queue_stopped(bp->dev)) && + (bnx2_tx_avail(bp) > bp->tx_wake_thresh)) { + netif_tx_lock(bp->dev); if ((netif_queue_stopped(bp->dev)) && - (bnx2_tx_avail(bp) > MAX_SKB_FRAGS)) { - + (bnx2_tx_avail(bp) > bp->tx_wake_thresh)) netif_wake_queue(bp->dev); - } - spin_unlock(&bp->tx_lock); + netif_tx_unlock(bp->dev); } } @@ -3503,6 +3510,8 @@ bnx2_init_tx_ring(struct bnx2 *bp) struct tx_bd *txbd; u32 val; + bp->tx_wake_thresh = bp->tx_ring_size / 2; + txbd = &bp->tx_desc_ring[MAX_TX_DESC_CNT]; txbd->tx_bd_haddr_hi = (u64) bp->tx_desc_mapping >> 32; @@ -4390,10 +4399,8 @@ bnx2_vlan_rx_kill_vid(struct net_device *dev, uint16_t vid) #endif /* Called with netif_tx_lock. - * hard_start_xmit is pseudo-lockless - a lock is only required when - * the tx queue is full. This way, we get the benefit of lockless - * operations most of the time without the complexities to handle - * netif_stop_queue/wake_queue race conditions. + * bnx2_tx_int() runs without netif_tx_lock unless it needs to call + * netif_wake_queue(). */ static int bnx2_start_xmit(struct sk_buff *skb, struct net_device *dev) @@ -4512,12 +4519,9 @@ bnx2_start_xmit(struct sk_buff *skb, struct net_device *dev) dev->trans_start = jiffies; if (unlikely(bnx2_tx_avail(bp) <= MAX_SKB_FRAGS)) { - spin_lock(&bp->tx_lock); netif_stop_queue(dev); - - if (bnx2_tx_avail(bp) > MAX_SKB_FRAGS) + if (bnx2_tx_avail(bp) > bp->tx_wake_thresh) netif_wake_queue(dev); - spin_unlock(&bp->tx_lock); } return NETDEV_TX_OK; @@ -5628,7 +5632,6 @@ bnx2_init_board(struct pci_dev *pdev, struct net_device *dev) bp->pdev = pdev; spin_lock_init(&bp->phy_lock); - spin_lock_init(&bp->tx_lock); INIT_WORK(&bp->reset_task, bnx2_reset_task, bp); dev->base_addr = dev->mem_start = pci_resource_start(pdev, 0); diff --git a/drivers/net/bnx2.h b/drivers/net/bnx2.h index 658c5ee95c73..fe804763c607 100644 --- a/drivers/net/bnx2.h +++ b/drivers/net/bnx2.h @@ -3890,10 +3890,6 @@ struct bnx2 { u32 tx_prod_bseq __attribute__((aligned(L1_CACHE_BYTES))); u16 tx_prod; - struct tx_bd *tx_desc_ring; - struct sw_bd *tx_buf_ring; - int tx_ring_size; - u16 tx_cons __attribute__((aligned(L1_CACHE_BYTES))); u16 hw_tx_cons; @@ -3916,9 +3912,11 @@ struct bnx2 { struct sw_bd *rx_buf_ring; struct rx_bd *rx_desc_ring[MAX_RX_RINGS]; - /* Only used to synchronize netif_stop_queue/wake_queue when tx */ - /* ring is full */ - spinlock_t tx_lock; + /* TX constants */ + struct tx_bd *tx_desc_ring; + struct sw_bd *tx_buf_ring; + int tx_ring_size; + u32 tx_wake_thresh; /* End of fields used in the performance code paths. */ From 932f3772cf76cc1b1fd1538ceee3edba9bf2164f Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Tue, 15 Aug 2006 01:39:36 -0700 Subject: [PATCH 185/488] [BNX2]: Convert to netdev_alloc_skb() Convert dev_alloc_skb() to netdev_alloc_skb() and increase default rx ring size to 255. The old ring size of 100 was too small. Update version to 1.4.44. Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/bnx2.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c index 2099edbbfdfd..652eb05a6c2d 100644 --- a/drivers/net/bnx2.c +++ b/drivers/net/bnx2.c @@ -56,8 +56,8 @@ #define DRV_MODULE_NAME "bnx2" #define PFX DRV_MODULE_NAME ": " -#define DRV_MODULE_VERSION "1.4.43" -#define DRV_MODULE_RELDATE "June 28, 2006" +#define DRV_MODULE_VERSION "1.4.44" +#define DRV_MODULE_RELDATE "August 10, 2006" #define RUN_AT(x) (jiffies + (x)) @@ -1571,7 +1571,7 @@ bnx2_alloc_rx_skb(struct bnx2 *bp, u16 index) struct rx_bd *rxbd = &bp->rx_desc_ring[RX_RING(index)][RX_IDX(index)]; unsigned long align; - skb = dev_alloc_skb(bp->rx_buf_size); + skb = netdev_alloc_skb(bp->dev, bp->rx_buf_size); if (skb == NULL) { return -ENOMEM; } @@ -1580,7 +1580,6 @@ bnx2_alloc_rx_skb(struct bnx2 *bp, u16 index) skb_reserve(skb, 8 - align); } - skb->dev = bp->dev; mapping = pci_map_single(bp->pdev, skb->data, bp->rx_buf_use_size, PCI_DMA_FROMDEVICE); @@ -1793,7 +1792,7 @@ bnx2_rx_int(struct bnx2 *bp, int budget) if ((bp->dev->mtu > 1500) && (len <= RX_COPY_THRESH)) { struct sk_buff *new_skb; - new_skb = dev_alloc_skb(len + 2); + new_skb = netdev_alloc_skb(bp->dev, len + 2); if (new_skb == NULL) goto reuse_rx; @@ -1804,7 +1803,6 @@ bnx2_rx_int(struct bnx2 *bp, int budget) skb_reserve(new_skb, 2); skb_put(new_skb, len); - new_skb->dev = bp->dev; bnx2_reuse_rx_skb(bp, skb, sw_ring_cons, sw_ring_prod); @@ -3961,7 +3959,7 @@ bnx2_run_loopback(struct bnx2 *bp, int loopback_mode) return -EINVAL; pkt_size = 1514; - skb = dev_alloc_skb(pkt_size); + skb = netdev_alloc_skb(bp->dev, pkt_size); if (!skb) return -ENOMEM; packet = skb_put(skb, pkt_size); @@ -5754,7 +5752,7 @@ bnx2_init_board(struct pci_dev *pdev, struct net_device *dev) bp->mac_addr[5] = (u8) reg; bp->tx_ring_size = MAX_TX_DESC_CNT; - bnx2_set_rx_ring_size(bp, 100); + bnx2_set_rx_ring_size(bp, 255); bp->rx_csum = 1; From b9c6e3e96669ade31afd3a39f17393e577b609c5 Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Tue, 15 Aug 2006 02:02:33 -0700 Subject: [PATCH 186/488] [ATM]: Compile error on ARM atm_proc_exit() is declared as __exit, and thus in .exit.text. On some architectures (ARM) .exit.text is discarded at compile time, and since atm_proc_exit() is called by some other __init functions, it results in a link error. Signed-off-by: Kevin Hilman Signed-off-by: David S. Miller --- net/atm/proc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/atm/proc.c b/net/atm/proc.c index 3f95b0886a6a..91fe5f53ff11 100644 --- a/net/atm/proc.c +++ b/net/atm/proc.c @@ -507,7 +507,7 @@ err_out: goto out; } -void __exit atm_proc_exit(void) +void atm_proc_exit(void) { atm_proc_dirs_remove(); } From c0956bd25161bff45304d482cda51ca4b3b572f1 Mon Sep 17 00:00:00 2001 From: Ralf Hildebrandt Date: Tue, 15 Aug 2006 02:12:43 -0700 Subject: [PATCH 187/488] [PKT_SCHED] cls_u32: Fix typo. Signed-off-by: Ralf Hildebrandt Signed-off-by: David S. Miller --- net/sched/cls_u32.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c index eea366966740..0a6cfa0005be 100644 --- a/net/sched/cls_u32.c +++ b/net/sched/cls_u32.c @@ -796,7 +796,7 @@ static int __init init_u32(void) { printk("u32 classifier\n"); #ifdef CONFIG_CLS_U32_PERF - printk(" Perfomance counters on\n"); + printk(" Performance counters on\n"); #endif #ifdef CONFIG_NET_CLS_POLICE printk(" OLD policer on \n"); From d4274b51a5c8147b5341e15927368e75b632d297 Mon Sep 17 00:00:00 2001 From: Panagiotis Issaris Date: Tue, 15 Aug 2006 16:01:07 -0700 Subject: [PATCH 188/488] [PPP]: handle kmalloc failures and convert to using kzalloc The PPP code contains two kmalloc()s followed by memset()s without handling a possible memory allocation failure. (Suggested by Joe Perches). And furthermore, conversions from kmalloc+memset to kzalloc. [akpm@osdl.org: fix error-path leak] [akpm@osdl.org: cleanups] [paulus@samba.org: don't add useless printk and cardmap_destroy calls] Signed-off-by: Panagiotis Issaris Signed-off-by: Andrew Morton Signed-off-by: Paul Mackerras Signed-off-by: David S. Miller --- drivers/net/ppp_generic.c | 30 +++++++++++++++++++----------- 1 file changed, 19 insertions(+), 11 deletions(-) diff --git a/drivers/net/ppp_generic.c b/drivers/net/ppp_generic.c index 0ec6e9d57b94..c872f7c6cce3 100644 --- a/drivers/net/ppp_generic.c +++ b/drivers/net/ppp_generic.c @@ -192,7 +192,7 @@ struct cardmap { void *ptr[CARDMAP_WIDTH]; }; static void *cardmap_get(struct cardmap *map, unsigned int nr); -static void cardmap_set(struct cardmap **map, unsigned int nr, void *ptr); +static int cardmap_set(struct cardmap **map, unsigned int nr, void *ptr); static unsigned int cardmap_find_first_free(struct cardmap *map); static void cardmap_destroy(struct cardmap **map); @@ -1995,10 +1995,9 @@ ppp_register_channel(struct ppp_channel *chan) { struct channel *pch; - pch = kmalloc(sizeof(struct channel), GFP_KERNEL); + pch = kzalloc(sizeof(struct channel), GFP_KERNEL); if (pch == 0) return -ENOMEM; - memset(pch, 0, sizeof(struct channel)); pch->ppp = NULL; pch->chan = chan; chan->ppp = pch; @@ -2408,13 +2407,12 @@ ppp_create_interface(int unit, int *retp) int ret = -ENOMEM; int i; - ppp = kmalloc(sizeof(struct ppp), GFP_KERNEL); + ppp = kzalloc(sizeof(struct ppp), GFP_KERNEL); if (!ppp) goto out; dev = alloc_netdev(0, "", ppp_setup); if (!dev) goto out1; - memset(ppp, 0, sizeof(struct ppp)); ppp->mru = PPP_MRU; init_ppp_file(&ppp->file, INTERFACE); @@ -2454,11 +2452,16 @@ ppp_create_interface(int unit, int *retp) } atomic_inc(&ppp_unit_count); - cardmap_set(&all_ppp_units, unit, ppp); + ret = cardmap_set(&all_ppp_units, unit, ppp); + if (ret != 0) + goto out3; + mutex_unlock(&all_ppp_mutex); *retp = 0; return ppp; +out3: + atomic_dec(&ppp_unit_count); out2: mutex_unlock(&all_ppp_mutex); free_netdev(dev); @@ -2695,7 +2698,7 @@ static void *cardmap_get(struct cardmap *map, unsigned int nr) return NULL; } -static void cardmap_set(struct cardmap **pmap, unsigned int nr, void *ptr) +static int cardmap_set(struct cardmap **pmap, unsigned int nr, void *ptr) { struct cardmap *p; int i; @@ -2704,8 +2707,9 @@ static void cardmap_set(struct cardmap **pmap, unsigned int nr, void *ptr) if (p == NULL || (nr >> p->shift) >= CARDMAP_WIDTH) { do { /* need a new top level */ - struct cardmap *np = kmalloc(sizeof(*np), GFP_KERNEL); - memset(np, 0, sizeof(*np)); + struct cardmap *np = kzalloc(sizeof(*np), GFP_KERNEL); + if (!np) + goto enomem; np->ptr[0] = p; if (p != NULL) { np->shift = p->shift + CARDMAP_ORDER; @@ -2719,8 +2723,9 @@ static void cardmap_set(struct cardmap **pmap, unsigned int nr, void *ptr) while (p->shift > 0) { i = (nr >> p->shift) & CARDMAP_MASK; if (p->ptr[i] == NULL) { - struct cardmap *np = kmalloc(sizeof(*np), GFP_KERNEL); - memset(np, 0, sizeof(*np)); + struct cardmap *np = kzalloc(sizeof(*np), GFP_KERNEL); + if (!np) + goto enomem; np->shift = p->shift - CARDMAP_ORDER; np->parent = p; p->ptr[i] = np; @@ -2735,6 +2740,9 @@ static void cardmap_set(struct cardmap **pmap, unsigned int nr, void *ptr) set_bit(i, &p->inuse); else clear_bit(i, &p->inuse); + return 0; + enomem: + return -ENOMEM; } static unsigned int cardmap_find_first_free(struct cardmap *map) From c7fa9d189e93877a1fa08ab00f230e0689125e45 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 15 Aug 2006 16:34:13 -0700 Subject: [PATCH 189/488] [NET]: Disallow whitespace in network device names. It causes way too much trouble and confusion in userspace. Signed-off-by: David S. Miller --- net/core/dev.c | 19 ++++++++++++++----- 1 file changed, 14 insertions(+), 5 deletions(-) diff --git a/net/core/dev.c b/net/core/dev.c index 9fe96cde3e19..d4a1ec3bded5 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -116,6 +116,7 @@ #include #include #include +#include /* * The list of packet types we will receive (as opposed to discard) @@ -632,14 +633,22 @@ struct net_device * dev_get_by_flags(unsigned short if_flags, unsigned short mas * @name: name string * * Network device names need to be valid file names to - * to allow sysfs to work + * to allow sysfs to work. We also disallow any kind of + * whitespace. */ int dev_valid_name(const char *name) { - return !(*name == '\0' - || !strcmp(name, ".") - || !strcmp(name, "..") - || strchr(name, '/')); + if (*name == '\0') + return 0; + if (!strcmp(name, ".") || !strcmp(name, "..")) + return 0; + + while (*name) { + if (*name == '/' || isspace(*name)) + return 0; + name++; + } + return 1; } /** From acd6e00b8e4db542cb6bc9ddfbb4e18bbe29ce4d Mon Sep 17 00:00:00 2001 From: David L Stevens Date: Thu, 17 Aug 2006 16:27:39 -0700 Subject: [PATCH 190/488] [MCAST]: Fix filter leak on device removal. This fixes source filter leakage when a device is removed and a process leaves the group thereafter. This also includes corresponding fixes for IPv6 multicast source filters on device removal. Signed-off-by: David L Stevens Signed-off-by: David S. Miller --- net/ipv4/igmp.c | 32 +++++++++++++++++++------------- net/ipv6/mcast.c | 10 ++++++---- 2 files changed, 25 insertions(+), 17 deletions(-) diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c index e981369ebe13..8e8117c19e4d 100644 --- a/net/ipv4/igmp.c +++ b/net/ipv4/igmp.c @@ -1793,29 +1793,35 @@ int ip_mc_leave_group(struct sock *sk, struct ip_mreqn *imr) struct in_device *in_dev; u32 group = imr->imr_multiaddr.s_addr; u32 ifindex; + int ret = -EADDRNOTAVAIL; rtnl_lock(); in_dev = ip_mc_find_dev(imr); - if (!in_dev) { - rtnl_unlock(); - return -ENODEV; - } ifindex = imr->imr_ifindex; for (imlp = &inet->mc_list; (iml = *imlp) != NULL; imlp = &iml->next) { - if (iml->multi.imr_multiaddr.s_addr == group && - iml->multi.imr_ifindex == ifindex) { - (void) ip_mc_leave_src(sk, iml, in_dev); + if (iml->multi.imr_multiaddr.s_addr != group) + continue; + if (ifindex) { + if (iml->multi.imr_ifindex != ifindex) + continue; + } else if (imr->imr_address.s_addr && imr->imr_address.s_addr != + iml->multi.imr_address.s_addr) + continue; - *imlp = iml->next; + (void) ip_mc_leave_src(sk, iml, in_dev); + *imlp = iml->next; + + if (in_dev) ip_mc_dec_group(in_dev, group); - rtnl_unlock(); - sock_kfree_s(sk, iml, sizeof(*iml)); - return 0; - } + rtnl_unlock(); + sock_kfree_s(sk, iml, sizeof(*iml)); + return 0; } + if (!in_dev) + ret = -ENODEV; rtnl_unlock(); - return -EADDRNOTAVAIL; + return ret; } int ip_mc_source(int add, int omode, struct sock *sk, struct diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c index 9d697d4dcffc..639eb20c9f1f 100644 --- a/net/ipv6/mcast.c +++ b/net/ipv6/mcast.c @@ -268,13 +268,14 @@ int ipv6_sock_mc_drop(struct sock *sk, int ifindex, struct in6_addr *addr) if ((dev = dev_get_by_index(mc_lst->ifindex)) != NULL) { struct inet6_dev *idev = in6_dev_get(dev); + (void) ip6_mc_leave_src(sk, mc_lst, idev); if (idev) { - (void) ip6_mc_leave_src(sk,mc_lst,idev); __ipv6_dev_mc_dec(idev, &mc_lst->addr); in6_dev_put(idev); } dev_put(dev); - } + } else + (void) ip6_mc_leave_src(sk, mc_lst, NULL); sock_kfree_s(sk, mc_lst, sizeof(*mc_lst)); return 0; } @@ -334,13 +335,14 @@ void ipv6_sock_mc_close(struct sock *sk) if (dev) { struct inet6_dev *idev = in6_dev_get(dev); + (void) ip6_mc_leave_src(sk, mc_lst, idev); if (idev) { - (void) ip6_mc_leave_src(sk, mc_lst, idev); __ipv6_dev_mc_dec(idev, &mc_lst->addr); in6_dev_put(idev); } dev_put(dev); - } + } else + (void) ip6_mc_leave_src(sk, mc_lst, NULL); sock_kfree_s(sk, mc_lst, sizeof(*mc_lst)); From 6e8fcbf64024f9056ba122abbb66554aa76bae5d Mon Sep 17 00:00:00 2001 From: Alexey Kuznetsov Date: Thu, 17 Aug 2006 16:44:46 -0700 Subject: [PATCH 191/488] [IPV4]: severe locking bug in fib_semantics.c Found in 2.4 by Yixin Pan . > When I read fib_semantics.c of Linux-2.4.32, write_lock(&fib_info_lock) = > is used in fib_release_info() instead of write_lock_bh(&fib_info_lock). = > Is the following case possible: a BH interrupts fib_release_info() while = > holding the write lock, and calls ip_check_fib_default() which calls = > read_lock(&fib_info_lock), and spin forever. Signed-off-by: Alexey Kuznetsov Signed-off-by: David S. Miller --- net/ipv4/fib_semantics.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c index 9be53a8e72c3..51738000f3dc 100644 --- a/net/ipv4/fib_semantics.c +++ b/net/ipv4/fib_semantics.c @@ -159,7 +159,7 @@ void free_fib_info(struct fib_info *fi) void fib_release_info(struct fib_info *fi) { - write_lock(&fib_info_lock); + write_lock_bh(&fib_info_lock); if (fi && --fi->fib_treeref == 0) { hlist_del(&fi->fib_hash); if (fi->fib_prefsrc) @@ -172,7 +172,7 @@ void fib_release_info(struct fib_info *fi) fi->fib_dead = 1; fib_info_put(fi); } - write_unlock(&fib_info_lock); + write_unlock_bh(&fib_info_lock); } static __inline__ int nh_comp(const struct fib_info *fi, const struct fib_info *ofi) @@ -598,7 +598,7 @@ static void fib_hash_move(struct hlist_head *new_info_hash, unsigned int old_size = fib_hash_size; unsigned int i, bytes; - write_lock(&fib_info_lock); + write_lock_bh(&fib_info_lock); old_info_hash = fib_info_hash; old_laddrhash = fib_info_laddrhash; fib_hash_size = new_size; @@ -639,7 +639,7 @@ static void fib_hash_move(struct hlist_head *new_info_hash, } fib_info_laddrhash = new_laddrhash; - write_unlock(&fib_info_lock); + write_unlock_bh(&fib_info_lock); bytes = old_size * sizeof(struct hlist_head *); fib_hash_free(old_info_hash, bytes); @@ -820,7 +820,7 @@ link_it: fi->fib_treeref++; atomic_inc(&fi->fib_clntref); - write_lock(&fib_info_lock); + write_lock_bh(&fib_info_lock); hlist_add_head(&fi->fib_hash, &fib_info_hash[fib_info_hashfn(fi)]); if (fi->fib_prefsrc) { @@ -839,7 +839,7 @@ link_it: head = &fib_info_devhash[hash]; hlist_add_head(&nh->nh_hash, head); } endfor_nexthops(fi) - write_unlock(&fib_info_lock); + write_unlock_bh(&fib_info_lock); return fi; err_inval: From f583165f6a926e9f27ff8d15c0e4b22e83f0d599 Mon Sep 17 00:00:00 2001 From: Jon Loeliger Date: Thu, 17 Aug 2006 08:42:35 -0500 Subject: [PATCH 192/488] [POWERPC] Convert to mac-address for ethernet MAC address data. Also accept "local-mac-address". However the old "address" is now obsolete, but accepted for backwards compatibility. It should be removed after all device trees have been converted to use "mac-address". Signed-off-by: Jon Loeliger Signed-off-by: Paul Mackerras --- Documentation/powerpc/booting-without-of.txt | 10 +++++----- arch/powerpc/sysdev/fsl_soc.c | 12 ++++++++++-- 2 files changed, 15 insertions(+), 7 deletions(-) diff --git a/Documentation/powerpc/booting-without-of.txt b/Documentation/powerpc/booting-without-of.txt index 3c62e66e1fcc..8c48b8a27b9c 100644 --- a/Documentation/powerpc/booting-without-of.txt +++ b/Documentation/powerpc/booting-without-of.txt @@ -1196,7 +1196,7 @@ platforms are moved over to use the flattened-device-tree model. - model : Model of the device. Can be "TSEC", "eTSEC", or "FEC" - compatible : Should be "gianfar" - reg : Offset and length of the register set for the device - - address : List of bytes representing the ethernet address of + - mac-address : List of bytes representing the ethernet address of this controller - interrupts : where a is the interrupt number and b is a field that represents an encoding of the sense and level @@ -1216,7 +1216,7 @@ platforms are moved over to use the flattened-device-tree model. model = "TSEC"; compatible = "gianfar"; reg = <24000 1000>; - address = [ 00 E0 0C 00 73 00 ]; + mac-address = [ 00 E0 0C 00 73 00 ]; interrupts = ; interrupt-parent = <40000>; phy-handle = <2452000> @@ -1498,7 +1498,7 @@ not necessary as they are usually the same as the root node. model = "TSEC"; compatible = "gianfar"; reg = <24000 1000>; - address = [ 00 E0 0C 00 73 00 ]; + mac-address = [ 00 E0 0C 00 73 00 ]; interrupts = ; interrupt-parent = <40000>; phy-handle = <2452000>; @@ -1511,7 +1511,7 @@ not necessary as they are usually the same as the root node. model = "TSEC"; compatible = "gianfar"; reg = <25000 1000>; - address = [ 00 E0 0C 00 73 01 ]; + mac-address = [ 00 E0 0C 00 73 01 ]; interrupts = <13 3 14 3 18 3>; interrupt-parent = <40000>; phy-handle = <2452001>; @@ -1524,7 +1524,7 @@ not necessary as they are usually the same as the root node. model = "FEC"; compatible = "gianfar"; reg = <26000 1000>; - address = [ 00 E0 0C 00 73 02 ]; + mac-address = [ 00 E0 0C 00 73 02 ]; interrupts = <19 3>; interrupt-parent = <40000>; phy-handle = <2452002>; diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c index e983972132d8..12b65609c072 100644 --- a/arch/powerpc/sysdev/fsl_soc.c +++ b/arch/powerpc/sysdev/fsl_soc.c @@ -169,8 +169,16 @@ static int __init gfar_of_init(void) goto err; } - mac_addr = get_property(np, "address", NULL); - memcpy(gfar_data.mac_addr, mac_addr, 6); + mac_addr = get_property(np, "local-mac-address", NULL); + if (mac_addr == NULL) + mac_addr = get_property(np, "mac-address", NULL); + if (mac_addr == NULL) { + /* Obsolete */ + mac_addr = get_property(np, "address", NULL); + } + + if (mac_addr) + memcpy(gfar_data.mac_addr, mac_addr, 6); if (model && !strcasecmp(model, "TSEC")) gfar_data.device_flags = From 707ba16f0ffed3b83ced3c7f4d4d332a70f8b41d Mon Sep 17 00:00:00 2001 From: Jon Loeliger Date: Thu, 3 Aug 2006 16:27:57 -0500 Subject: [PATCH 193/488] [POWERPC] Add MPC8641 HPCN Device Tree Source file. As per list discussion, let's add device tree source files under powerpc/boot/dts. If nothing else, it is a starting point. Signed-off-by: Jon Loeliger Signed-off-by: Paul Mackerras --- arch/powerpc/boot/dts/mpc8641_hpcn.dts | 338 +++++++++++++++++++++++++ 1 file changed, 338 insertions(+) create mode 100644 arch/powerpc/boot/dts/mpc8641_hpcn.dts diff --git a/arch/powerpc/boot/dts/mpc8641_hpcn.dts b/arch/powerpc/boot/dts/mpc8641_hpcn.dts new file mode 100644 index 000000000000..e832a884d765 --- /dev/null +++ b/arch/powerpc/boot/dts/mpc8641_hpcn.dts @@ -0,0 +1,338 @@ +/* + * MPC8641 HPCN Device Tree Source + * + * Copyright 2006 Freescale Semiconductor Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + + +/ { + model = "MPC8641HPCN"; + compatible = "mpc86xx"; + #address-cells = <1>; + #size-cells = <1>; + + cpus { + #cpus = <2>; + #address-cells = <1>; + #size-cells = <0>; + + PowerPC,8641@0 { + device_type = "cpu"; + reg = <0>; + d-cache-line-size = <20>; // 32 bytes + i-cache-line-size = <20>; // 32 bytes + d-cache-size = <8000>; // L1, 32K + i-cache-size = <8000>; // L1, 32K + timebase-frequency = <0>; // 33 MHz, from uboot + bus-frequency = <0>; // From uboot + clock-frequency = <0>; // From uboot + 32-bit; + linux,boot-cpu; + }; + PowerPC,8641@1 { + device_type = "cpu"; + reg = <1>; + d-cache-line-size = <20>; // 32 bytes + i-cache-line-size = <20>; // 32 bytes + d-cache-size = <8000>; // L1, 32K + i-cache-size = <8000>; // L1, 32K + timebase-frequency = <0>; // 33 MHz, from uboot + bus-frequency = <0>; // From uboot + clock-frequency = <0>; // From uboot + 32-bit; + }; + }; + + memory { + device_type = "memory"; + reg = <00000000 40000000>; // 1G at 0x0 + }; + + soc8641@f8000000 { + #address-cells = <1>; + #size-cells = <1>; + #interrupt-cells = <2>; + device_type = "soc"; + ranges = <0 f8000000 00100000>; + reg = ; // CCSRBAR 1M + bus-frequency = <0>; + + i2c@3000 { + device_type = "i2c"; + compatible = "fsl-i2c"; + reg = <3000 100>; + interrupts = <2b 2>; + interrupt-parent = <40000>; + dfsrr; + }; + + i2c@3100 { + device_type = "i2c"; + compatible = "fsl-i2c"; + reg = <3100 100>; + interrupts = <2b 2>; + interrupt-parent = <40000>; + dfsrr; + }; + + mdio@24520 { + #address-cells = <1>; + #size-cells = <0>; + device_type = "mdio"; + compatible = "gianfar"; + reg = <24520 20>; + linux,phandle = <24520>; + ethernet-phy@0 { + linux,phandle = <2452000>; + interrupt-parent = <40000>; + interrupts = <4a 1>; + reg = <0>; + device_type = "ethernet-phy"; + }; + ethernet-phy@1 { + linux,phandle = <2452001>; + interrupt-parent = <40000>; + interrupts = <4a 1>; + reg = <1>; + device_type = "ethernet-phy"; + }; + ethernet-phy@2 { + linux,phandle = <2452002>; + interrupt-parent = <40000>; + interrupts = <4a 1>; + reg = <2>; + device_type = "ethernet-phy"; + }; + ethernet-phy@3 { + linux,phandle = <2452003>; + interrupt-parent = <40000>; + interrupts = <4a 1>; + reg = <3>; + device_type = "ethernet-phy"; + }; + }; + + ethernet@24000 { + #address-cells = <1>; + #size-cells = <0>; + device_type = "network"; + model = "TSEC"; + compatible = "gianfar"; + reg = <24000 1000>; + mac-address = [ 00 E0 0C 00 73 00 ]; + interrupts = <1d 2 1e 2 22 2>; + interrupt-parent = <40000>; + phy-handle = <2452000>; + }; + + ethernet@25000 { + #address-cells = <1>; + #size-cells = <0>; + device_type = "network"; + model = "TSEC"; + compatible = "gianfar"; + reg = <25000 1000>; + mac-address = [ 00 E0 0C 00 73 01 ]; + interrupts = <23 2 24 2 28 2>; + interrupt-parent = <40000>; + phy-handle = <2452001>; + }; + + ethernet@26000 { + #address-cells = <1>; + #size-cells = <0>; + device_type = "network"; + model = "TSEC"; + compatible = "gianfar"; + reg = <26000 1000>; + mac-address = [ 00 E0 0C 00 02 FD ]; + interrupts = <1F 2 20 2 21 2>; + interrupt-parent = <40000>; + phy-handle = <2452002>; + }; + + ethernet@27000 { + #address-cells = <1>; + #size-cells = <0>; + device_type = "network"; + model = "TSEC"; + compatible = "gianfar"; + reg = <27000 1000>; + mac-address = [ 00 E0 0C 00 03 FD ]; + interrupts = <25 2 26 2 27 2>; + interrupt-parent = <40000>; + phy-handle = <2452003>; + }; + serial@4500 { + device_type = "serial"; + compatible = "ns16550"; + reg = <4500 100>; + clock-frequency = <0>; + interrupts = <2a 2>; + interrupt-parent = <40000>; + }; + + serial@4600 { + device_type = "serial"; + compatible = "ns16550"; + reg = <4600 100>; + clock-frequency = <0>; + interrupts = <1c 2>; + interrupt-parent = <40000>; + }; + + pci@8000 { + compatible = "86xx"; + device_type = "pci"; + #interrupt-cells = <1>; + #size-cells = <2>; + #address-cells = <3>; + reg = <8000 1000>; + bus-range = <0 fe>; + ranges = <02000000 0 80000000 80000000 0 20000000 + 01000000 0 00000000 e2000000 0 00100000>; + clock-frequency = <1fca055>; + interrupt-parent = <40000>; + interrupts = <18 2>; + interrupt-map-mask = ; + interrupt-map = < + /* IDSEL 0x11 */ + 8800 0 0 1 4d0 3 2 + 8800 0 0 2 4d0 4 2 + 8800 0 0 3 4d0 5 2 + 8800 0 0 4 4d0 6 2 + + /* IDSEL 0x12 */ + 9000 0 0 1 4d0 4 2 + 9000 0 0 2 4d0 5 2 + 9000 0 0 3 4d0 6 2 + 9000 0 0 4 4d0 3 2 + + /* IDSEL 0x13 */ + 9800 0 0 1 4d0 0 0 + 9800 0 0 2 4d0 0 0 + 9800 0 0 3 4d0 0 0 + 9800 0 0 4 4d0 0 0 + + /* IDSEL 0x14 */ + a000 0 0 1 4d0 0 0 + a000 0 0 2 4d0 0 0 + a000 0 0 3 4d0 0 0 + a000 0 0 4 4d0 0 0 + + /* IDSEL 0x15 */ + a800 0 0 1 4d0 0 0 + a800 0 0 2 4d0 0 0 + a800 0 0 3 4d0 0 0 + a800 0 0 4 4d0 0 0 + + /* IDSEL 0x16 */ + b000 0 0 1 4d0 0 0 + b000 0 0 2 4d0 0 0 + b000 0 0 3 4d0 0 0 + b000 0 0 4 4d0 0 0 + + /* IDSEL 0x17 */ + b800 0 0 1 4d0 0 0 + b800 0 0 2 4d0 0 0 + b800 0 0 3 4d0 0 0 + b800 0 0 4 4d0 0 0 + + /* IDSEL 0x18 */ + c000 0 0 1 4d0 0 0 + c000 0 0 2 4d0 0 0 + c000 0 0 3 4d0 0 0 + c000 0 0 4 4d0 0 0 + + /* IDSEL 0x19 */ + c800 0 0 1 4d0 0 0 + c800 0 0 2 4d0 0 0 + c800 0 0 3 4d0 0 0 + c800 0 0 4 4d0 0 0 + + /* IDSEL 0x1a */ + d000 0 0 1 4d0 6 2 + d000 0 0 2 4d0 3 2 + d000 0 0 3 4d0 4 2 + d000 0 0 4 4d0 5 2 + + + /* IDSEL 0x1b */ + d800 0 0 1 4d0 5 2 + d800 0 0 2 4d0 0 0 + d800 0 0 3 4d0 0 0 + d800 0 0 4 4d0 0 0 + + /* IDSEL 0x1c */ + e000 0 0 1 4d0 9 2 + e000 0 0 2 4d0 a 2 + e000 0 0 3 4d0 c 2 + e000 0 0 4 4d0 7 2 + + /* IDSEL 0x1d */ + e800 0 0 1 4d0 9 2 + e800 0 0 2 4d0 a 2 + e800 0 0 3 4d0 b 2 + e800 0 0 4 4d0 0 0 + + /* IDSEL 0x1e */ + f000 0 0 1 4d0 c 2 + f000 0 0 2 4d0 0 0 + f000 0 0 3 4d0 0 0 + f000 0 0 4 4d0 0 0 + + /* IDSEL 0x1f */ + f800 0 0 1 4d0 6 2 + f800 0 0 2 4d0 0 0 + f800 0 0 3 4d0 0 0 + f800 0 0 4 4d0 0 0 + >; + i8259@4d0 { + clock-frequency = <0>; + interrupt-controller; + device_type = "interrupt-controller"; + #address-cells = <0>; + #interrupt-cells = <2>; + built-in; + compatible = "chrp,iic"; + big-endian; + interrupts = <49 2>; + interrupt-parent = <40000>; + }; + + }; + pic@40000 { + linux,phandle = <40000>; + clock-frequency = <0>; + interrupt-controller; + #address-cells = <0>; + #interrupt-cells = <2>; + reg = <40000 40000>; + built-in; + compatible = "chrp,open-pic"; + device_type = "open-pic"; + big-endian; + interrupts = < + 10 2 11 2 12 2 13 2 + 14 2 15 2 16 2 17 2 + 18 2 19 2 1a 2 1b 2 + 1c 2 1d 2 1e 2 1f 2 + 20 2 21 2 22 2 23 2 + 24 2 25 2 26 2 27 2 + 28 2 29 2 2a 2 2b 2 + 2c 2 2d 2 2e 2 2f 2 + 30 2 31 2 32 2 33 2 + 34 2 35 2 36 2 37 2 + 38 2 39 2 2a 2 3b 2 + 3c 2 3d 2 3e 2 3f 2 + 48 1 49 2 4a 1 + >; + interrupt-parent = <40000>; + }; + }; +}; From 5315862045c5dc5dfe0754fbd07df1350180628a Mon Sep 17 00:00:00 2001 From: Jon Loeliger Date: Wed, 9 Aug 2006 10:37:28 -0500 Subject: [PATCH 194/488] [POWERPC] Offer PCI as a CONFIG choice for PPC_86xx. Also fix 80-column run-over. Signed-off-by: Jon Loeliger Signed-off-by: Paul Mackerras --- arch/powerpc/Kconfig | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 13e583f16ede..abb325eb8f75 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -836,9 +836,10 @@ config MCA bool config PCI - bool "PCI support" if 40x || CPM2 || PPC_83xx || PPC_85xx || PPC_MPC52xx || (EMBEDDED && PPC_ISERIES) \ - || MPC7448HPC2 - default y if !40x && !CPM2 && !8xx && !APUS && !PPC_83xx && !PPC_85xx && !PPC_86xx + bool "PCI support" if 40x || CPM2 || PPC_83xx || PPC_85xx || PPC_86xx \ + || PPC_MPC52xx || (EMBEDDED && PPC_ISERIES) || MPC7448HPC2 + default y if !40x && !CPM2 && !8xx && !APUS && !PPC_83xx \ + && !PPC_85xx && !PPC_86xx default PCI_PERMEDIA if !4xx && !CPM2 && !8xx && APUS default PCI_QSPAN if !4xx && !CPM2 && 8xx help From 9e8a9bc2d2c3ac3b8542cc5c2544248df6f3f1c5 Mon Sep 17 00:00:00 2001 From: Jon Loeliger Date: Thu, 17 Aug 2006 12:24:42 -0500 Subject: [PATCH 195/488] [POWERPC] Fix the mpc8641_hpcn.dts file. Add 'linux,phandle' entry to i8259@4d0 node. Signed-off-by: Zhang Wei Signed-off-by: Jon Loeliger Signed-off-by: Paul Mackerras --- arch/powerpc/boot/dts/mpc8641_hpcn.dts | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/boot/dts/mpc8641_hpcn.dts b/arch/powerpc/boot/dts/mpc8641_hpcn.dts index e832a884d765..f0c7731743ea 100644 --- a/arch/powerpc/boot/dts/mpc8641_hpcn.dts +++ b/arch/powerpc/boot/dts/mpc8641_hpcn.dts @@ -293,6 +293,7 @@ f800 0 0 4 4d0 0 0 >; i8259@4d0 { + linux,phandle = <4d0>; clock-frequency = <0>; interrupt-controller; device_type = "interrupt-controller"; From d205dc40798d97d63ad348bfaf7394f445d152d4 Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Thu, 17 Aug 2006 18:12:38 -0700 Subject: [PATCH 196/488] [NETFILTER]: ctnetlink: fix deadlock in table dumping ip_conntrack_put must not be called while holding ip_conntrack_lock since destroy_conntrack takes it again. Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- net/ipv4/netfilter/ip_conntrack_netlink.c | 17 +++++++---------- net/netfilter/nf_conntrack_netlink.c | 17 +++++++---------- 2 files changed, 14 insertions(+), 20 deletions(-) diff --git a/net/ipv4/netfilter/ip_conntrack_netlink.c b/net/ipv4/netfilter/ip_conntrack_netlink.c index 33891bb1fde4..0d4cc92391fa 100644 --- a/net/ipv4/netfilter/ip_conntrack_netlink.c +++ b/net/ipv4/netfilter/ip_conntrack_netlink.c @@ -415,21 +415,18 @@ ctnetlink_dump_table(struct sk_buff *skb, struct netlink_callback *cb) cb->args[0], *id); read_lock_bh(&ip_conntrack_lock); + last = (struct ip_conntrack *)cb->args[1]; for (; cb->args[0] < ip_conntrack_htable_size; cb->args[0]++) { restart: - last = (struct ip_conntrack *)cb->args[1]; list_for_each_prev(i, &ip_conntrack_hash[cb->args[0]]) { h = (struct ip_conntrack_tuple_hash *) i; if (DIRECTION(h) != IP_CT_DIR_ORIGINAL) continue; ct = tuplehash_to_ctrack(h); - if (last != NULL) { - if (ct == last) { - ip_conntrack_put(last); - cb->args[1] = 0; - last = NULL; - } else + if (cb->args[1]) { + if (ct != last) continue; + cb->args[1] = 0; } if (ctnetlink_fill_info(skb, NETLINK_CB(cb->skb).pid, cb->nlh->nlmsg_seq, @@ -440,17 +437,17 @@ restart: goto out; } } - if (last != NULL) { - ip_conntrack_put(last); + if (cb->args[1]) { cb->args[1] = 0; goto restart; } } out: read_unlock_bh(&ip_conntrack_lock); + if (last) + ip_conntrack_put(last); DEBUGP("leaving, last bucket=%lu id=%u\n", cb->args[0], *id); - return skb->len; } diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c index af4845971f70..6527d4e048d8 100644 --- a/net/netfilter/nf_conntrack_netlink.c +++ b/net/netfilter/nf_conntrack_netlink.c @@ -429,9 +429,9 @@ ctnetlink_dump_table(struct sk_buff *skb, struct netlink_callback *cb) cb->args[0], *id); read_lock_bh(&nf_conntrack_lock); + last = (struct nf_conn *)cb->args[1]; for (; cb->args[0] < nf_conntrack_htable_size; cb->args[0]++) { restart: - last = (struct nf_conn *)cb->args[1]; list_for_each_prev(i, &nf_conntrack_hash[cb->args[0]]) { h = (struct nf_conntrack_tuple_hash *) i; if (DIRECTION(h) != IP_CT_DIR_ORIGINAL) @@ -442,13 +442,10 @@ restart: * then dump everything. */ if (l3proto && L3PROTO(ct) != l3proto) continue; - if (last != NULL) { - if (ct == last) { - nf_ct_put(last); - cb->args[1] = 0; - last = NULL; - } else + if (cb->args[1]) { + if (ct != last) continue; + cb->args[1] = 0; } if (ctnetlink_fill_info(skb, NETLINK_CB(cb->skb).pid, cb->nlh->nlmsg_seq, @@ -459,17 +456,17 @@ restart: goto out; } } - if (last != NULL) { - nf_ct_put(last); + if (cb->args[1]) { cb->args[1] = 0; goto restart; } } out: read_unlock_bh(&nf_conntrack_lock); + if (last) + nf_ct_put(last); DEBUGP("leaving, last bucket=%lu id=%u\n", cb->args[0], *id); - return skb->len; } From 8311731afc439f508ab4d759edadedae75afb73e Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Thu, 17 Aug 2006 18:13:53 -0700 Subject: [PATCH 197/488] [NETFILTER]: ip_tables: fix table locking in ipt_do_table table->private might change because of ruleset changes, don't use it without holding the lock. Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- net/ipv4/netfilter/ip_tables.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c index f316ff5fd8a6..048514f15f2f 100644 --- a/net/ipv4/netfilter/ip_tables.c +++ b/net/ipv4/netfilter/ip_tables.c @@ -230,7 +230,7 @@ ipt_do_table(struct sk_buff **pskb, const char *indev, *outdev; void *table_base; struct ipt_entry *e, *back; - struct xt_table_info *private = table->private; + struct xt_table_info *private; /* Initialization */ ip = (*pskb)->nh.iph; @@ -247,6 +247,7 @@ ipt_do_table(struct sk_buff **pskb, read_lock_bh(&table->lock); IP_NF_ASSERT(table->valid_hooks & (1 << hook)); + private = table->private; table_base = (void *)private->entries[smp_processor_id()]; e = get_entry(table_base, private->hook_entry[hook]); From 78eb887733ec8ff5d6e6c69e3c32a187a9303622 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Thu, 17 Aug 2006 18:22:32 -0700 Subject: [PATCH 198/488] [BRIDGE]: Disable SG/GSO if TX checksum is off When the bridge recomputes features, it does not maintain the constraint that SG/GSO must be off if TX checksum is off. This patch adds that constraint. On a completely unrelated note, I've also added TSO6 and TSO_ECN feature bits if GSO is enabled on the underlying device through the new NETIF_F_GSO_SOFTWARE macro. Signed-off-by: Herbert Xu Signed-off-by: David S. Miller --- include/linux/netdevice.h | 3 +++ net/bridge/br_if.c | 7 ++++++- 2 files changed, 9 insertions(+), 1 deletion(-) diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index c0c2b46face1..50a4719512ed 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -320,6 +320,9 @@ struct net_device #define NETIF_F_TSO_ECN (SKB_GSO_TCP_ECN << NETIF_F_GSO_SHIFT) #define NETIF_F_TSO6 (SKB_GSO_TCPV6 << NETIF_F_GSO_SHIFT) + /* List of features with software fallbacks. */ +#define NETIF_F_GSO_SOFTWARE (NETIF_F_TSO | NETIF_F_TSO_ECN | NETIF_F_TSO6) + #define NETIF_F_GEN_CSUM (NETIF_F_NO_CSUM | NETIF_F_HW_CSUM) #define NETIF_F_ALL_CSUM (NETIF_F_IP_CSUM | NETIF_F_GEN_CSUM) diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c index f55ef682ef84..b1211d5342f6 100644 --- a/net/bridge/br_if.c +++ b/net/bridge/br_if.c @@ -386,12 +386,17 @@ void br_features_recompute(struct net_bridge *br) checksum = 0; if (feature & NETIF_F_GSO) - feature |= NETIF_F_TSO; + feature |= NETIF_F_GSO_SOFTWARE; feature |= NETIF_F_GSO; features &= feature; } + if (!(checksum & NETIF_F_ALL_CSUM)) + features &= ~NETIF_F_SG; + if (!(features & NETIF_F_SG)) + features &= ~NETIF_F_GSO_MASK; + br->dev->features = features | checksum | NETIF_F_LLTX | NETIF_F_GSO_ROBUST; } From f57e1abd1bb297994c7398478b4c37e628095243 Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Fri, 18 Aug 2006 15:32:10 +0100 Subject: [PATCH 199/488] [ARM] 3753/1: S3C24XX: DMA fixes Patch from Ben Dooks A number of small issues with the S3C24XX DMA have cropped up, which this patch fixes. These are: - check wether we can load another buff in start - update state handling in s3c2410_dma_lastxfer - only reload in irq if channel is not idle - more informative timeout errors (add source) - do not call request_irq() with irqs locked - added waitforstop function The patch also adds a S3C2410_DMAOP_STARTED for the occasions when the driver wants to ensure that the DMA system load state is resynced after loading. Signed-off-by: Ben Dooks Signed-off-by: Russell King --- arch/arm/mach-s3c2410/dma.c | 163 +++++++++++++++++++++++++---- include/asm-arm/arch-s3c2410/dma.h | 1 + 2 files changed, 145 insertions(+), 19 deletions(-) diff --git a/arch/arm/mach-s3c2410/dma.c b/arch/arm/mach-s3c2410/dma.c index 094cc52745c5..25855452fe8c 100644 --- a/arch/arm/mach-s3c2410/dma.c +++ b/arch/arm/mach-s3c2410/dma.c @@ -112,7 +112,7 @@ dmadbg_capture(s3c2410_dma_chan_t *chan, struct s3c2410_dma_regstate *regs) } static void -dmadbg_showregs(const char *fname, int line, s3c2410_dma_chan_t *chan, +dmadbg_dumpregs(const char *fname, int line, s3c2410_dma_chan_t *chan, struct s3c2410_dma_regstate *regs) { printk(KERN_DEBUG "dma%d: %s:%d: DCSRC=%08lx, DISRC=%08lx, DSTAT=%08lx DMT=%02lx, DCON=%08lx\n", @@ -132,7 +132,16 @@ dmadbg_showchan(const char *fname, int line, s3c2410_dma_chan_t *chan) chan->number, fname, line, chan->load_state, chan->curr, chan->next, chan->end); - dmadbg_showregs(fname, line, chan, &state); + dmadbg_dumpregs(fname, line, chan, &state); +} + +static void +dmadbg_showregs(const char *fname, int line, s3c2410_dma_chan_t *chan) +{ + struct s3c2410_dma_regstate state; + + dmadbg_capture(chan, &state); + dmadbg_dumpregs(fname, line, chan, &state); } #define dbg_showregs(chan) dmadbg_showregs(__FUNCTION__, __LINE__, (chan)) @@ -253,10 +262,14 @@ s3c2410_dma_loadbuffer(s3c2410_dma_chan_t *chan, buf->next); reload = (buf->next == NULL) ? S3C2410_DCON_NORELOAD : 0; } else { - pr_debug("load_state is %d => autoreload\n", chan->load_state); + //pr_debug("load_state is %d => autoreload\n", chan->load_state); reload = S3C2410_DCON_AUTORELOAD; } + if ((buf->data & 0xf0000000) != 0x30000000) { + dmawarn("dmaload: buffer is %p\n", (void *)buf->data); + } + writel(buf->data, chan->addr_reg); dma_wrreg(chan, S3C2410_DMA_DCON, @@ -370,7 +383,7 @@ static int s3c2410_dma_start(s3c2410_dma_chan_t *chan) tmp |= S3C2410_DMASKTRIG_ON; dma_wrreg(chan, S3C2410_DMA_DMASKTRIG, tmp); - pr_debug("wrote %08lx to DMASKTRIG\n", tmp); + pr_debug("dma%d: %08lx to DMASKTRIG\n", chan->number, tmp); #if 0 /* the dma buffer loads should take care of clearing the AUTO @@ -384,7 +397,30 @@ static int s3c2410_dma_start(s3c2410_dma_chan_t *chan) dbg_showchan(chan); + /* if we've only loaded one buffer onto the channel, then chec + * to see if we have another, and if so, try and load it so when + * the first buffer is finished, the new one will be loaded onto + * the channel */ + + if (chan->next != NULL) { + if (chan->load_state == S3C2410_DMALOAD_1LOADED) { + + if (s3c2410_dma_waitforload(chan, __LINE__) == 0) { + pr_debug("%s: buff not yet loaded, no more todo\n", + __FUNCTION__); + } else { + chan->load_state = S3C2410_DMALOAD_1RUNNING; + s3c2410_dma_loadbuffer(chan, chan->next); + } + + } else if (chan->load_state == S3C2410_DMALOAD_1RUNNING) { + s3c2410_dma_loadbuffer(chan, chan->next); + } + } + + local_irq_restore(flags); + return 0; } @@ -436,12 +472,11 @@ int s3c2410_dma_enqueue(unsigned int channel, void *id, buf = kmem_cache_alloc(dma_kmem, GFP_ATOMIC); if (buf == NULL) { pr_debug("%s: out of memory (%ld alloc)\n", - __FUNCTION__, sizeof(*buf)); + __FUNCTION__, (long)sizeof(*buf)); return -ENOMEM; } - pr_debug("%s: new buffer %p\n", __FUNCTION__, buf); - + //pr_debug("%s: new buffer %p\n", __FUNCTION__, buf); //dbg_showchan(chan); buf->next = NULL; @@ -537,14 +572,20 @@ s3c2410_dma_lastxfer(s3c2410_dma_chan_t *chan) case S3C2410_DMALOAD_1LOADED: if (s3c2410_dma_waitforload(chan, __LINE__) == 0) { /* flag error? */ - printk(KERN_ERR "dma%d: timeout waiting for load\n", - chan->number); + printk(KERN_ERR "dma%d: timeout waiting for load (%s)\n", + chan->number, __FUNCTION__); return; } break; + case S3C2410_DMALOAD_1LOADED_1RUNNING: + /* I belive in this case we do not have anything to do + * until the next buffer comes along, and we turn off the + * reload */ + return; + default: - pr_debug("dma%d: lastxfer: unhandled load_state %d with no next", + pr_debug("dma%d: lastxfer: unhandled load_state %d with no next\n", chan->number, chan->load_state); return; @@ -629,7 +670,14 @@ s3c2410_dma_irq(int irq, void *devpw, struct pt_regs *regs) } else { } - if (chan->next != NULL) { + /* only reload if the channel is still running... our buffer done + * routine may have altered the state by requesting the dma channel + * to stop or shutdown... */ + + /* todo: check that when the channel is shut-down from inside this + * function, we cope with unsetting reload, etc */ + + if (chan->next != NULL && chan->state != S3C2410_DMA_IDLE) { unsigned long flags; switch (chan->load_state) { @@ -644,8 +692,8 @@ s3c2410_dma_irq(int irq, void *devpw, struct pt_regs *regs) case S3C2410_DMALOAD_1LOADED: if (s3c2410_dma_waitforload(chan, __LINE__) == 0) { /* flag error? */ - printk(KERN_ERR "dma%d: timeout waiting for load\n", - chan->number); + printk(KERN_ERR "dma%d: timeout waiting for load (%s)\n", + chan->number, __FUNCTION__); return IRQ_HANDLED; } @@ -678,8 +726,6 @@ s3c2410_dma_irq(int irq, void *devpw, struct pt_regs *regs) return IRQ_HANDLED; } - - /* s3c2410_request_dma * * get control of an dma channel @@ -718,11 +764,17 @@ int s3c2410_dma_request(unsigned int channel, s3c2410_dma_client_t *client, pr_debug("dma%d: %s : requesting irq %d\n", channel, __FUNCTION__, chan->irq); + chan->irq_claimed = 1; + local_irq_restore(flags); + err = request_irq(chan->irq, s3c2410_dma_irq, IRQF_DISABLED, client->name, (void *)chan); + local_irq_save(flags); + if (err) { chan->in_use = 0; + chan->irq_claimed = 0; local_irq_restore(flags); printk(KERN_ERR "%s: cannot get IRQ %d for DMA %d\n", @@ -730,7 +782,6 @@ int s3c2410_dma_request(unsigned int channel, s3c2410_dma_client_t *client, return err; } - chan->irq_claimed = 1; chan->irq_enabled = 1; } @@ -810,6 +861,7 @@ static int s3c2410_dma_dostop(s3c2410_dma_chan_t *chan) tmp = dma_rdreg(chan, S3C2410_DMA_DMASKTRIG); tmp |= S3C2410_DMASKTRIG_STOP; + //tmp &= ~S3C2410_DMASKTRIG_ON; dma_wrreg(chan, S3C2410_DMA_DMASKTRIG, tmp); #if 0 @@ -819,6 +871,7 @@ static int s3c2410_dma_dostop(s3c2410_dma_chan_t *chan) dma_wrreg(chan, S3C2410_DMA_DCON, tmp); #endif + /* should stop do this, or should we wait for flush? */ chan->state = S3C2410_DMA_IDLE; chan->load_state = S3C2410_DMALOAD_NONE; @@ -827,6 +880,22 @@ static int s3c2410_dma_dostop(s3c2410_dma_chan_t *chan) return 0; } +void s3c2410_dma_waitforstop(s3c2410_dma_chan_t *chan) +{ + unsigned long tmp; + unsigned int timeout = 0x10000; + + while (timeout-- > 0) { + tmp = dma_rdreg(chan, S3C2410_DMA_DMASKTRIG); + + if (!(tmp & S3C2410_DMASKTRIG_ON)) + return; + } + + pr_debug("dma%d: failed to stop?\n", chan->number); +} + + /* s3c2410_dma_flush * * stop the channel, and remove all current and pending transfers @@ -837,7 +906,9 @@ static int s3c2410_dma_flush(s3c2410_dma_chan_t *chan) s3c2410_dma_buf_t *buf, *next; unsigned long flags; - pr_debug("%s:\n", __FUNCTION__); + pr_debug("%s: chan %p (%d)\n", __FUNCTION__, chan, chan->number); + + dbg_showchan(chan); local_irq_save(flags); @@ -864,11 +935,64 @@ static int s3c2410_dma_flush(s3c2410_dma_chan_t *chan) } } + dbg_showregs(chan); + + s3c2410_dma_waitforstop(chan); + +#if 0 + /* should also clear interrupts, according to WinCE BSP */ + { + unsigned long tmp; + + tmp = dma_rdreg(chan, S3C2410_DMA_DCON); + tmp |= S3C2410_DCON_NORELOAD; + dma_wrreg(chan, S3C2410_DMA_DCON, tmp); + } +#endif + + dbg_showregs(chan); + local_irq_restore(flags); return 0; } +int +s3c2410_dma_started(s3c2410_dma_chan_t *chan) +{ + unsigned long flags; + + local_irq_save(flags); + + dbg_showchan(chan); + + /* if we've only loaded one buffer onto the channel, then chec + * to see if we have another, and if so, try and load it so when + * the first buffer is finished, the new one will be loaded onto + * the channel */ + + if (chan->next != NULL) { + if (chan->load_state == S3C2410_DMALOAD_1LOADED) { + + if (s3c2410_dma_waitforload(chan, __LINE__) == 0) { + pr_debug("%s: buff not yet loaded, no more todo\n", + __FUNCTION__); + } else { + chan->load_state = S3C2410_DMALOAD_1RUNNING; + s3c2410_dma_loadbuffer(chan, chan->next); + } + + } else if (chan->load_state == S3C2410_DMALOAD_1RUNNING) { + s3c2410_dma_loadbuffer(chan, chan->next); + } + } + + + local_irq_restore(flags); + + return 0; + +} int s3c2410_dma_ctrl(dmach_t channel, s3c2410_chan_op_t op) @@ -885,14 +1009,15 @@ s3c2410_dma_ctrl(dmach_t channel, s3c2410_chan_op_t op) return s3c2410_dma_dostop(chan); case S3C2410_DMAOP_PAUSE: - return -ENOENT; - case S3C2410_DMAOP_RESUME: return -ENOENT; case S3C2410_DMAOP_FLUSH: return s3c2410_dma_flush(chan); + case S3C2410_DMAOP_STARTED: + return s3c2410_dma_started(chan); + case S3C2410_DMAOP_TIMEOUT: return 0; diff --git a/include/asm-arm/arch-s3c2410/dma.h b/include/asm-arm/arch-s3c2410/dma.h index 72964f9b8414..7463fd5252ce 100644 --- a/include/asm-arm/arch-s3c2410/dma.h +++ b/include/asm-arm/arch-s3c2410/dma.h @@ -104,6 +104,7 @@ enum s3c2410_chan_op_e { S3C2410_DMAOP_RESUME, S3C2410_DMAOP_FLUSH, S3C2410_DMAOP_TIMEOUT, /* internal signal to handler */ + S3C2410_DMAOP_STARTED, /* indicate channel started */ }; typedef enum s3c2410_chan_op_e s3c2410_chan_op_t; From 332158e7c206dc6bee0dfb24f2c1d6096e0989cd Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Fri, 18 Aug 2006 15:32:12 +0100 Subject: [PATCH 200/488] [ARM] 3754/1: S3C24XX: tidy arch/arm/mach-s3c2410/Makefile Patch from Ben Dooks tidy up the makefile by using TABs to indent, and ensure that all items are indented the same. Move the DMA to its own section, ready for the next set of updates Signed-off-by: Ben Dooks Signed-off-by: Russell King --- arch/arm/mach-s3c2410/Makefile | 36 ++++++++++++++++++---------------- 1 file changed, 19 insertions(+), 17 deletions(-) diff --git a/arch/arm/mach-s3c2410/Makefile b/arch/arm/mach-s3c2410/Makefile index 0c7938645df6..273e05f2b8de 100644 --- a/arch/arm/mach-s3c2410/Makefile +++ b/arch/arm/mach-s3c2410/Makefile @@ -10,45 +10,47 @@ obj-m := obj-n := obj- := +# DMA +obj-$(CONFIG_S3C2410_DMA) += dma.o + # S3C2400 support files -obj-$(CONFIG_CPU_S3C2400) += s3c2400-gpio.o +obj-$(CONFIG_CPU_S3C2400) += s3c2400-gpio.o # S3C2410 support files -obj-$(CONFIG_CPU_S3C2410) += s3c2410.o -obj-$(CONFIG_CPU_S3C2410) += s3c2410-gpio.o -obj-$(CONFIG_S3C2410_DMA) += dma.o +obj-$(CONFIG_CPU_S3C2410) += s3c2410.o +obj-$(CONFIG_CPU_S3C2410) += s3c2410-gpio.o # Power Management support -obj-$(CONFIG_PM) += pm.o sleep.o -obj-$(CONFIG_PM_SIMTEC) += pm-simtec.o +obj-$(CONFIG_PM) += pm.o sleep.o +obj-$(CONFIG_PM_SIMTEC) += pm-simtec.o # S3C2412 support -obj-$(CONFIG_CPU_S3C2412) += s3c2412.o -obj-$(CONFIG_CPU_S3C2412) += s3c2412-clock.o +obj-$(CONFIG_CPU_S3C2412) += s3c2412.o +obj-$(CONFIG_CPU_S3C2412) += s3c2412-clock.o # # S3C244X support -obj-$(CONFIG_CPU_S3C244X) += s3c244x.o -obj-$(CONFIG_CPU_S3C244X) += s3c244x-irq.o +obj-$(CONFIG_CPU_S3C244X) += s3c244x.o +obj-$(CONFIG_CPU_S3C244X) += s3c244x-irq.o # Clock control -obj-$(CONFIG_S3C2410_CLOCK) += s3c2410-clock.o +obj-$(CONFIG_S3C2410_CLOCK) += s3c2410-clock.o # S3C2440 support -obj-$(CONFIG_CPU_S3C2440) += s3c2440.o s3c2440-dsc.o -obj-$(CONFIG_CPU_S3C2440) += s3c2440-irq.o -obj-$(CONFIG_CPU_S3C2440) += s3c2440-clock.o -obj-$(CONFIG_CPU_S3C2440) += s3c2410-gpio.o +obj-$(CONFIG_CPU_S3C2440) += s3c2440.o s3c2440-dsc.o +obj-$(CONFIG_CPU_S3C2440) += s3c2440-irq.o +obj-$(CONFIG_CPU_S3C2440) += s3c2440-clock.o +obj-$(CONFIG_CPU_S3C2440) += s3c2410-gpio.o # S3C2442 support -obj-$(CONFIG_CPU_S3C2442) += s3c2442.o -obj-$(CONFIG_CPU_S3C2442) += s3c2442-clock.o +obj-$(CONFIG_CPU_S3C2442) += s3c2442.o +obj-$(CONFIG_CPU_S3C2442) += s3c2442-clock.o # bast extras From e2785f0d4251c35d6e82ec819354374c8c17d63d Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Fri, 18 Aug 2006 15:32:14 +0100 Subject: [PATCH 201/488] [ARM] 3755/1: dmabounce: fix return value for find_safe_buffer Patch from Kevin Hilman Previous locking changes to dmabounce incorrectly return non-NULL even when buffer not found. Fix it up. Signed-off-by: Kevin Hilman Signed-off-by: Russell King --- arch/arm/common/dmabounce.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/arch/arm/common/dmabounce.c b/arch/arm/common/dmabounce.c index 5b7c26395b44..028bdc9228fb 100644 --- a/arch/arm/common/dmabounce.c +++ b/arch/arm/common/dmabounce.c @@ -179,17 +179,19 @@ alloc_safe_buffer(struct dmabounce_device_info *device_info, void *ptr, static inline struct safe_buffer * find_safe_buffer(struct dmabounce_device_info *device_info, dma_addr_t safe_dma_addr) { - struct safe_buffer *b = NULL; + struct safe_buffer *b, *rb = NULL; unsigned long flags; read_lock_irqsave(&device_info->lock, flags); list_for_each_entry(b, &device_info->safe_buffers, node) - if (b->safe_dma_addr == safe_dma_addr) + if (b->safe_dma_addr == safe_dma_addr) { + rb = b; break; + } read_unlock_irqrestore(&device_info->lock, flags); - return b; + return rb; } static inline void From 3a834635e8953839dba3f417a26414039b0c7c48 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Fri, 18 Aug 2006 15:32:17 +0100 Subject: [PATCH 202/488] [ARM] 3756/1: Assign value for HWCAP_IWMMXT Patch from Paul Gortmaker Some folks here at Wind River asked me if I'd push this out so that the value was generally agreed upon in advance by all folks interested in working with iWMMXt. Seems simple enough... Signed-off-by: Paul Gortmaker Signed-off-by: Russell King --- include/asm-arm/procinfo.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/asm-arm/procinfo.h b/include/asm-arm/procinfo.h index edb7b6502fcf..91a31adfa8a8 100644 --- a/include/asm-arm/procinfo.h +++ b/include/asm-arm/procinfo.h @@ -55,5 +55,6 @@ extern unsigned int elf_hwcap; #define HWCAP_VFP 64 #define HWCAP_EDSP 128 #define HWCAP_JAVA 256 +#define HWCAP_IWMMXT 512 #endif From 90af774ab150b97c0aa8ed0375f4652be986bdce Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Fri, 18 Aug 2006 15:34:46 +0100 Subject: [PATCH 203/488] [ARM] 3757/1: Use PROCINFO_INITFUNC in head.S Patch from Catalin Marinas This is instead of a magic number. Signed-off-by: Catalin Marinas Signed-off-by: Russell King --- arch/arm/kernel/head.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S index 4fe386eea4b4..5365d4e5949e 100644 --- a/arch/arm/kernel/head.S +++ b/arch/arm/kernel/head.S @@ -118,7 +118,7 @@ ENTRY(secondary_startup) sub r4, r4, r5 @ mmu has been enabled ldr r4, [r7, r4] @ get secondary_data.pgdir adr lr, __enable_mmu @ return address - add pc, r10, #12 @ initialise processor + add pc, r10, #PROCINFO_INITFUNC @ initialise processor @ (return control reg) /* From ba9b5d76372dc290b6ca04dad93927a22c2ac49a Mon Sep 17 00:00:00 2001 From: Nicolas Pitre Date: Fri, 18 Aug 2006 17:20:15 +0100 Subject: [PATCH 204/488] [ARM] 3746/2: Userspace helpers must be Thumb mode interworkable Patch from Nicolas Pitre The userspace helpers in clean/arch/arm/kernel/entry-armv.S are called directly in/from userspace. They need to cope with being called from Thumb code. Patch below uses the bx interworking instruction when CONFIG_ARM_THUMB=y. Based on an earlier patch from Paul Brook Signed-off-by: Nicolas Pitre Signed-off-by: Russell King --- arch/arm/kernel/entry-armv.S | 21 ++++++++++++--------- 1 file changed, 12 insertions(+), 9 deletions(-) diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S index 7ea5f01dfc7b..de4e33137901 100644 --- a/arch/arm/kernel/entry-armv.S +++ b/arch/arm/kernel/entry-armv.S @@ -634,6 +634,14 @@ ENTRY(__switch_to) * purpose. */ + .macro usr_ret, reg +#ifdef CONFIG_ARM_THUMB + bx \reg +#else + mov pc, \reg +#endif + .endm + .align 5 .globl __kuser_helper_start __kuser_helper_start: @@ -675,7 +683,7 @@ __kuser_memory_barrier: @ 0xffff0fa0 #if __LINUX_ARM_ARCH__ >= 6 && defined(CONFIG_SMP) mcr p15, 0, r0, c7, c10, 5 @ dmb #endif - mov pc, lr + usr_ret lr .align 5 @@ -778,7 +786,7 @@ __kuser_cmpxchg: @ 0xffff0fc0 mov r0, #-1 adds r0, r0, #0 #endif - mov pc, lr + usr_ret lr #else @@ -792,7 +800,7 @@ __kuser_cmpxchg: @ 0xffff0fc0 #ifdef CONFIG_SMP mcr p15, 0, r0, c7, c10, 5 @ dmb #endif - mov pc, lr + usr_ret lr #endif @@ -834,16 +842,11 @@ __kuser_cmpxchg: @ 0xffff0fc0 __kuser_get_tls: @ 0xffff0fe0 #if !defined(CONFIG_HAS_TLS_REG) && !defined(CONFIG_TLS_REG_EMUL) - ldr r0, [pc, #(16 - 8)] @ TLS stored at 0xffff0ff0 - mov pc, lr - #else - mrc p15, 0, r0, c13, c0, 3 @ read TLS register - mov pc, lr - #endif + usr_ret lr .rep 5 .word 0 @ pad up to __kuser_helper_version From df6fd31995cb2e38b2a7e94bc8f1559b8f55404e Mon Sep 17 00:00:00 2001 From: "Starikovskiy, Alexey Y" Date: Fri, 18 Aug 2006 11:23:00 -0400 Subject: [PATCH 205/488] ACPI: relax BAD_MADT_ENTRY check to allow LSAPIC variable length string UIDs ACPI 3.0 appended a variable length UID string to the LAPIC structure as part of support for > 256 processors. So the BAD_MADT_ENTRY() sanity check can no longer compare for equality with a fixed structure length. Signed-off-by: Alexey Y Starikovskiy Signed-off-by: Len Brown --- arch/i386/kernel/acpi/boot.c | 2 +- arch/ia64/kernel/acpi.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/i386/kernel/acpi/boot.c b/arch/i386/kernel/acpi/boot.c index 0db6387025ca..ee003bc0e8b1 100644 --- a/arch/i386/kernel/acpi/boot.c +++ b/arch/i386/kernel/acpi/boot.c @@ -59,7 +59,7 @@ static inline int gsi_irq_sharing(int gsi) { return gsi; } #define BAD_MADT_ENTRY(entry, end) ( \ (!entry) || (unsigned long)entry + sizeof(*entry) > end || \ - ((acpi_table_entry_header *)entry)->length != sizeof(*entry)) + ((acpi_table_entry_header *)entry)->length < sizeof(*entry)) #define PREFIX "ACPI: " diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c index 99761b81db44..0176556aeecc 100644 --- a/arch/ia64/kernel/acpi.c +++ b/arch/ia64/kernel/acpi.c @@ -55,7 +55,7 @@ #define BAD_MADT_ENTRY(entry, end) ( \ (!entry) || (unsigned long)entry + sizeof(*entry) > end || \ - ((acpi_table_entry_header *)entry)->length != sizeof(*entry)) + ((acpi_table_entry_header *)entry)->length < sizeof(*entry)) #define PREFIX "ACPI: " From 5beba53230351b2d77c317c22e66c415f2ebaf02 Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Fri, 18 Aug 2006 10:41:46 -0700 Subject: [PATCH 206/488] IB/mthca: No userspace SRQs if HCA doesn't have SRQ support Leave all SRQ methods out of the device's uverbs_cmd_mask if the device doesn't have SRQ support (because of ancient firmware) so that we don't allow userspace to call the driver's create_srq method. This fixes a userspace-triggerable oops caused by ib_uverbs_create_srq() following the device's ->create_srq function pointer, which will be NULL if the device doesn't support SRQs. Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mthca/mthca_provider.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c index 230ae21db8fd..265b1d1c4a62 100644 --- a/drivers/infiniband/hw/mthca/mthca_provider.c +++ b/drivers/infiniband/hw/mthca/mthca_provider.c @@ -1287,11 +1287,7 @@ int mthca_register_device(struct mthca_dev *dev) (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) | - (1ull << IB_USER_VERBS_CMD_DETACH_MCAST) | - (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) | - (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) | - (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) | - (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ); + (1ull << IB_USER_VERBS_CMD_DETACH_MCAST); dev->ib_dev.node_type = IB_NODE_CA; dev->ib_dev.phys_port_cnt = dev->limits.num_ports; dev->ib_dev.dma_device = &dev->pdev->dev; @@ -1316,6 +1312,11 @@ int mthca_register_device(struct mthca_dev *dev) dev->ib_dev.modify_srq = mthca_modify_srq; dev->ib_dev.query_srq = mthca_query_srq; dev->ib_dev.destroy_srq = mthca_destroy_srq; + dev->ib_dev.uverbs_cmd_mask |= + (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) | + (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) | + (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) | + (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ); if (mthca_is_memfree(dev)) dev->ib_dev.post_srq_recv = mthca_arbel_post_srq_recv; From 33ccf8d1080bdccb4751a92f6da361a6e01b7cc0 Mon Sep 17 00:00:00 2001 From: James Smart Date: Thu, 17 Aug 2006 11:57:58 -0400 Subject: [PATCH 207/488] [SCSI] lpfc 8.1.9 : Misc Bug Fixes Misc Bug Fixes: - Cap MBX_DOWN_LINK command timeout to 60 seconds - Fix double free of ndlp object - Don't free mbox structures on error. The completion handlers expect to do so. - Clear host attention work items when going offline - Fixed discovery issues in multi-initiator environments. Signed-off-by: James Smart Signed-off-by: James Bottomley --- drivers/scsi/lpfc/lpfc_attr.c | 2 +- drivers/scsi/lpfc/lpfc_els.c | 15 ++++++++++++--- drivers/scsi/lpfc/lpfc_hbadisc.c | 3 +++ drivers/scsi/lpfc/lpfc_init.c | 1 + drivers/scsi/lpfc/lpfc_nportdisc.c | 22 +++++++++++++++++++++- 5 files changed, 38 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c index 76f8bd53e230..d384c16f4a87 100644 --- a/drivers/scsi/lpfc/lpfc_attr.c +++ b/drivers/scsi/lpfc/lpfc_attr.c @@ -222,7 +222,7 @@ lpfc_issue_lip(struct Scsi_Host *host) pmboxq->mb.mbxCommand = MBX_DOWN_LINK; pmboxq->mb.mbxOwner = OWN_HOST; - mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); + mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2); if ((mbxstatus == MBX_SUCCESS) && (pmboxq->mb.mbxStatus == 0)) { memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t)); diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c index 60f5cca0abe9..3567de613162 100644 --- a/drivers/scsi/lpfc/lpfc_els.c +++ b/drivers/scsi/lpfc/lpfc_els.c @@ -1848,9 +1848,12 @@ static void lpfc_cmpl_els_acc(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, struct lpfc_iocbq * rspiocb) { + IOCB_t *irsp; struct lpfc_nodelist *ndlp; LPFC_MBOXQ_t *mbox = NULL; + irsp = &rspiocb->iocb; + ndlp = (struct lpfc_nodelist *) cmdiocb->context1; if (cmdiocb->context_un.mbox) mbox = cmdiocb->context_un.mbox; @@ -1893,9 +1896,15 @@ lpfc_cmpl_els_acc(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, mempool_free( mbox, phba->mbox_mem_pool); } else { mempool_free( mbox, phba->mbox_mem_pool); - if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) { - lpfc_nlp_list(phba, ndlp, NLP_NO_LIST); - ndlp = NULL; + /* Do not call NO_LIST for lpfc_els_abort'ed ELS cmds */ + if (!((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) && + ((irsp->un.ulpWord[4] == IOERR_SLI_ABORTED) || + (irsp->un.ulpWord[4] == IOERR_LINK_DOWN) || + (irsp->un.ulpWord[4] == IOERR_SLI_DOWN)))) { + if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) { + lpfc_nlp_list(phba, ndlp, NLP_NO_LIST); + ndlp = NULL; + } } } } diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c index 1c3f2689155b..b2f1552f1848 100644 --- a/drivers/scsi/lpfc/lpfc_hbadisc.c +++ b/drivers/scsi/lpfc/lpfc_hbadisc.c @@ -1557,6 +1557,8 @@ lpfc_freenode(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp) mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; } } + + spin_lock_irq(phba->host->host_lock); list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) && (ndlp == (struct lpfc_nodelist *) mb->context2)) { @@ -1569,6 +1571,7 @@ lpfc_freenode(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp) mempool_free(mb, phba->mbox_mem_pool); } } + spin_unlock_irq(phba->host->host_lock); lpfc_els_abort(phba,ndlp,0); spin_lock_irq(phba->host->host_lock); diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index 16dc8c82b5ce..f6948ffe689a 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -1379,6 +1379,7 @@ lpfc_offline(struct lpfc_hba * phba) /* stop all timers associated with this hba */ lpfc_stop_timer(phba); phba->work_hba_events = 0; + phba->work_ha = 0; lpfc_printf_log(phba, KERN_WARNING, diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c index b38021a32c96..20449a8dd53d 100644 --- a/drivers/scsi/lpfc/lpfc_nportdisc.c +++ b/drivers/scsi/lpfc/lpfc_nportdisc.c @@ -393,6 +393,20 @@ lpfc_rcv_plogi(struct lpfc_hba * phba, mbox->context2 = ndlp; ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI); + /* + * If there is an outstanding PLOGI issued, abort it before + * sending ACC rsp for received PLOGI. If pending plogi + * is not canceled here, the plogi will be rejected by + * remote port and will be retried. On a configuration with + * single discovery thread, this will cause a huge delay in + * discovery. Also this will cause multiple state machines + * running in parallel for this node. + */ + if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) { + /* software abort outstanding PLOGI */ + lpfc_els_abort(phba, ndlp, 1); + } + lpfc_els_rsp_acc(phba, ELS_CMD_PLOGI, cmdiocb, ndlp, mbox, 0); return 1; @@ -1601,7 +1615,13 @@ lpfc_rcv_padisc_npr_node(struct lpfc_hba * phba, lpfc_rcv_padisc(phba, ndlp, cmdiocb); - if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { + /* + * Do not start discovery if discovery is about to start + * or discovery in progress for this node. Starting discovery + * here will affect the counting of discovery threads. + */ + if ((!(ndlp->nlp_flag & NLP_DELAY_TMO)) && + (ndlp->nlp_flag & NLP_NPR_2B_DISC)){ if (ndlp->nlp_flag & NLP_NPR_ADISC) { ndlp->nlp_prev_state = NLP_STE_NPR_NODE; ndlp->nlp_state = NLP_STE_ADISC_ISSUE; From a90f56847e8df9034c1c05d1157e1b0cd96987fb Mon Sep 17 00:00:00 2001 From: James Smart Date: Thu, 17 Aug 2006 11:58:04 -0400 Subject: [PATCH 208/488] [SCSI] lpfc 8.1.9 : Stall eh handlers if resetting while rport blocked Stall error handler if attempting resets/aborts while an rport is blocked. This avoids device offline scenarios due to errors in the error handler. Background: Although the transport is using the scsi_timed_out functionality to restart the timeout if the rport is blocked, if the timeout has already fired before the block occurs, the eh handler still runs and can take the device offline. Ultimately, this window cannot be resolved without significant work in the error handler thread. Christoph noted the first level of these issues when he noted the poor error response handling by the error thread. We found, under heavy load and error testing, that time window from when the scsi_times_out() adds the io to the queue to when the scsi_error_handler gets around to servicing it, can be in the several seconds range. In most cases, these test conditions are highly unusual, but possible. As a result, we're stalling the error handler in this race window so that we can avoid the device_offline transitions. Signed-off-by: James Smart Signed-off-by: James Bottomley --- drivers/scsi/lpfc/lpfc_scsi.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index 0811c824e0e0..a8816a8738f8 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -21,6 +21,7 @@ #include #include +#include #include #include @@ -841,6 +842,21 @@ lpfc_queuecommand(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *)) return 0; } +static void +lpfc_block_error_handler(struct scsi_cmnd *cmnd) +{ + struct Scsi_Host *shost = cmnd->device->host; + struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device)); + + spin_lock_irq(shost->host_lock); + while (rport->port_state == FC_PORTSTATE_BLOCKED) { + spin_unlock_irq(shost->host_lock); + msleep(1000); + spin_lock_irq(shost->host_lock); + } + spin_unlock_irq(shost->host_lock); + return; +} static int lpfc_abort_handler(struct scsi_cmnd *cmnd) @@ -855,6 +871,7 @@ lpfc_abort_handler(struct scsi_cmnd *cmnd) unsigned int loop_count = 0; int ret = SUCCESS; + lpfc_block_error_handler(cmnd); spin_lock_irq(shost->host_lock); lpfc_cmd = (struct lpfc_scsi_buf *)cmnd->host_scribble; @@ -957,6 +974,7 @@ lpfc_reset_lun_handler(struct scsi_cmnd *cmnd) int ret = FAILED; int cnt, loopcnt; + lpfc_block_error_handler(cmnd); spin_lock_irq(shost->host_lock); /* * If target is not in a MAPPED state, delay the reset until @@ -1073,6 +1091,7 @@ lpfc_reset_bus_handler(struct scsi_cmnd *cmnd) int cnt, loopcnt; struct lpfc_scsi_buf * lpfc_cmd; + lpfc_block_error_handler(cmnd); spin_lock_irq(shost->host_lock); lpfc_cmd = lpfc_get_scsi_buf(phba); From 48e2691f9c3bd6719e773f0b883449f4cef39585 Mon Sep 17 00:00:00 2001 From: James Smart Date: Thu, 17 Aug 2006 11:58:11 -0400 Subject: [PATCH 209/488] [SCSI] lpfc 8.1.9 : Change version number to 8.1.9 Change version number to 8.1.9 Signed-off-by: James Smart Signed-off-by: James Bottomley --- drivers/scsi/lpfc/lpfc_version.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/lpfc/lpfc_version.h b/drivers/scsi/lpfc/lpfc_version.h index c7963f91d0a7..c7091ea29f3f 100644 --- a/drivers/scsi/lpfc/lpfc_version.h +++ b/drivers/scsi/lpfc/lpfc_version.h @@ -18,7 +18,7 @@ * included with this package. * *******************************************************************/ -#define LPFC_DRIVER_VERSION "8.1.8" +#define LPFC_DRIVER_VERSION "8.1.9" #define LPFC_DRIVER_NAME "lpfc" From 864fe05dfa4ff3e230acf3b4ccf878b6f22603c4 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Mon, 14 Aug 2006 22:59:57 -0700 Subject: [PATCH 210/488] [PATCH] 82596 section fixes WARNING: drivers/net/82596.o - Section mismatch: reference to .init.text:i82596_probe from .text between 'init_module' (at offset 0x141) and 'i596_add_cmd' Also nail a couple of crazy inlines. Cc: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/82596.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/net/82596.c b/drivers/net/82596.c index 7e2ca9571467..257d3bce3993 100644 --- a/drivers/net/82596.c +++ b/drivers/net/82596.c @@ -899,7 +899,7 @@ memory_squeeze: } -static inline void i596_cleanup_cmd(struct net_device *dev, struct i596_private *lp) +static void i596_cleanup_cmd(struct net_device *dev, struct i596_private *lp) { struct i596_cmd *ptr; @@ -932,7 +932,8 @@ static inline void i596_cleanup_cmd(struct net_device *dev, struct i596_private lp->scb.cmd = I596_NULL; } -static inline void i596_reset(struct net_device *dev, struct i596_private *lp, int ioaddr) +static void i596_reset(struct net_device *dev, struct i596_private *lp, + int ioaddr) { unsigned long flags; @@ -1578,7 +1579,7 @@ static int debug = -1; module_param(debug, int, 0); MODULE_PARM_DESC(debug, "i82596 debug mask"); -int init_module(void) +int __init init_module(void) { if (debug >= 0) i596_debug = debug; @@ -1588,7 +1589,7 @@ int init_module(void) return 0; } -void cleanup_module(void) +void __exit cleanup_module(void) { unregister_netdev(dev_82596); #ifdef __mc68000__ From 62a87b8051ded3d1fcb89773c9febd1bb34d3cbd Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Mon, 14 Aug 2006 22:59:57 -0700 Subject: [PATCH 211/488] [PATCH] ac3200 section fixes WARNING: drivers/net/ac3200.o - Section mismatch: reference to .init.text: from .text between 'init_module' (at offset 0xf9) and 'ac_close_card' Cc: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/ac3200.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/ac3200.c b/drivers/net/ac3200.c index 7952dc6d77e3..0fbbcb75af69 100644 --- a/drivers/net/ac3200.c +++ b/drivers/net/ac3200.c @@ -370,8 +370,7 @@ MODULE_PARM_DESC(mem, "Memory base address(es)"); MODULE_DESCRIPTION("Ansel AC3200 EISA ethernet driver"); MODULE_LICENSE("GPL"); -int -init_module(void) +int __init init_module(void) { struct net_device *dev; int this_dev, found = 0; From 5f3bc456ce190a963a8816be5a318df9998f3bc5 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Mon, 14 Aug 2006 22:59:58 -0700 Subject: [PATCH 212/488] [PATCH] cops section fix WARNING: drivers/net/appletalk/cops.o - Section mismatch: reference to .init.text:cops_probe from .text between 'init_module' (at offset 0xae) and 'cops_rx' Cc: "David S. Miller" Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/appletalk/cops.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/appletalk/cops.c b/drivers/net/appletalk/cops.c index 1d01ac0000e4..ae7f828344d9 100644 --- a/drivers/net/appletalk/cops.c +++ b/drivers/net/appletalk/cops.c @@ -1030,7 +1030,7 @@ module_param(io, int, 0); module_param(irq, int, 0); module_param(board_type, int, 0); -int init_module(void) +int __init init_module(void) { if (io == 0) printk(KERN_WARNING "%s: You shouldn't autoprobe with insmod\n", From e26c129a49a7a4990f362a9cdb3084198b4d9d7b Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Mon, 14 Aug 2006 22:59:59 -0700 Subject: [PATCH 213/488] [PATCH] cs89x0 section fix WARNING: drivers/net/cs89x0.o - Section mismatch: reference to .init.data:version from .text between 'init_module' (at offset 0x13d8) and 'net_get_stats' WARNING: drivers/net/cs89x0.o - Section mismatch: reference to .init.text: from .text between 'init_module' (at offset 0x1634) and 'net_get_stats' WARNING: drivers/net/cs89x0.o - Section mismatch: reference to .init.text: from .text between 'init_module' (at offset 0x1a1f) and 'net_get_stats' Cc: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/cs89x0.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/cs89x0.c b/drivers/net/cs89x0.c index 47eecce35fa4..2dcca79b1f6a 100644 --- a/drivers/net/cs89x0.c +++ b/drivers/net/cs89x0.c @@ -1905,8 +1905,7 @@ MODULE_LICENSE("GPL"); */ -int -init_module(void) +int __init init_module(void) { struct net_device *dev = alloc_etherdev(sizeof(struct net_local)); struct net_local *lp; From 5d930108c914c04fbb0bfbb059d23a5fcaf0d1e7 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Mon, 14 Aug 2006 22:59:59 -0700 Subject: [PATCH 214/488] [PATCH] at1700 section fix WARNING: drivers/net/at1700.o - Section mismatch: reference to .init.text:at1700_probe from .text between 'init_module' (at offset 0x75) and 'net_get_stats' Cc: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/at1700.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/at1700.c b/drivers/net/at1700.c index 5d7929c79bce..4ca061c2d5b2 100644 --- a/drivers/net/at1700.c +++ b/drivers/net/at1700.c @@ -901,7 +901,7 @@ MODULE_PARM_DESC(io, "AT1700/FMV18X I/O base address"); MODULE_PARM_DESC(irq, "AT1700/FMV18X IRQ number"); MODULE_PARM_DESC(net_debug, "AT1700/FMV18X debug level (0-6)"); -int init_module(void) +int __init init_module(void) { if (io == 0) printk("at1700: You should not use auto-probing with insmod!\n"); From d543cbb6d192313d9027ed09c7a1e085b1234082 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Mon, 14 Aug 2006 23:00:00 -0700 Subject: [PATCH 215/488] [PATCH] e2100 section fix WARNING: drivers/net/e2100.o - Section mismatch: reference to .init.text: from .text between 'init_module' (at offset 0xd9) and 'e21_reset_8390' Cc: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/e2100.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/e2100.c b/drivers/net/e2100.c index e5c5cd2a2712..e4e733a380e3 100644 --- a/drivers/net/e2100.c +++ b/drivers/net/e2100.c @@ -425,8 +425,8 @@ MODULE_LICENSE("GPL"); /* This is set up so that only a single autoprobe takes place per call. ISA device autoprobes on a running machine are not recommended. */ -int -init_module(void) + +int __init init_module(void) { struct net_device *dev; int this_dev, found = 0; From 02a3245fcf0911ff92100aa54823dc1c5950fba9 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Mon, 14 Aug 2006 23:00:01 -0700 Subject: [PATCH 216/488] [PATCH] eepro section fix WARNING: drivers/net/eepro.o - Section mismatch: reference to .init.text: from .text between 'init_module' (at offset 0x284) and 'eepro_ethtool_get_drvinfo' WARNING: drivers/net/eepro.o - Section mismatch: reference to .init.text: from .text between 'init_module' (at offset 0x2a7) and 'eepro_ethtool_get_drvinfo' WARNING: drivers/net/eepro.o - Section mismatch: reference to .init.data:eepro_portlist from .text between 'init_module' (at offset 0x2b3) and 'eepro_ethtool_get_drvinfo' Cc: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/eepro.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/eepro.c b/drivers/net/eepro.c index 20d31430c74f..8dc61d65dd23 100644 --- a/drivers/net/eepro.c +++ b/drivers/net/eepro.c @@ -1807,8 +1807,7 @@ MODULE_PARM_DESC(irq, "EtherExpress Pro/10 IRQ number(s)"); MODULE_PARM_DESC(mem, "EtherExpress Pro/10 Rx buffer size(es) in kB (3-29)"); MODULE_PARM_DESC(autodetect, "EtherExpress Pro/10 force board(s) detection (0-1)"); -int -init_module(void) +int __init init_module(void) { struct net_device *dev; int i; From b1176b95b4b851b05a2f541ef54e7ce3ed358d19 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Mon, 14 Aug 2006 23:00:01 -0700 Subject: [PATCH 217/488] [PATCH] eexpress section fix WARNING: drivers/net/eexpress.o - Section mismatch: reference to .init.text: from .text between 'init_module' (at offset 0x6c3) and 'eexp_hw_lasttxstat' WARNING: drivers/net/eexpress.o - Section mismatch: reference to .init.text: from .text between 'init_module' (at offset 0x74f) and 'eexp_hw_lasttxstat' Cc: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/eexpress.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/eexpress.c b/drivers/net/eexpress.c index 33291bcf6d4c..0701c1d810ca 100644 --- a/drivers/net/eexpress.c +++ b/drivers/net/eexpress.c @@ -1698,7 +1698,7 @@ MODULE_LICENSE("GPL"); * are specified, we verify and then use them. If no parameters are given, we * autoprobe for one card only. */ -int init_module(void) +int __init init_module(void) { struct net_device *dev; int this_dev, found = 0; From 5757f5c6d7d9cbe4bf6a464f1842a767f505d440 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Mon, 14 Aug 2006 23:00:02 -0700 Subject: [PATCH 218/488] [PATCH] es3210 section fix WARNING: drivers/net/es3210.o - Section mismatch: reference to .init.text: from .text between 'init_module' (at offset 0xdf) and 'es_close' WARNING: drivers/net/es3210.o - Section mismatch: reference to .init.text: from .text between 'init_module' (at offset 0x100) and 'es_close' Cc: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/es3210.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/es3210.c b/drivers/net/es3210.c index 6b0ab1eac3fb..fd7b32a24ea4 100644 --- a/drivers/net/es3210.c +++ b/drivers/net/es3210.c @@ -421,8 +421,7 @@ MODULE_PARM_DESC(mem, "memory base address(es)"); MODULE_DESCRIPTION("Racal-Interlan ES3210 EISA ethernet driver"); MODULE_LICENSE("GPL"); -int -init_module(void) +int __init init_module(void) { struct net_device *dev; int this_dev, found = 0; From 58f149fc65ebced1148789cfb37457a8c7aaca75 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Mon, 14 Aug 2006 23:00:03 -0700 Subject: [PATCH 219/488] [PATCH] eth16i section fix WARNING: drivers/net/eth16i.o - Section mismatch: reference to .init.data:cardname from .text between 'init_module' (at offset 0x6d2) and 'eth16i_multicast' WARNING: drivers/net/eth16i.o - Section mismatch: reference to .init.text: from .text between 'init_module' (at offset 0x6ef) and 'eth16i_multicast' WARNING: drivers/net/eth16i.o - Section mismatch: reference to .init.text: from .text between 'init_module' (at offset 0x702) and 'eth16i_multicast' WARNING: drivers/net/eth16i.o - Section mismatch: reference to .init.data:cardname from .text between 'init_module' (at offset 0x70e) and 'eth16i_multicast' WARNING: drivers/net/eth16i.o - Section mismatch: reference to .init.text: from .text between 'init_module' (at offset 0x71d) and 'eth16i_multicast' WARNING: drivers/net/eth16i.o - Section mismatch: reference to .init.data:cardname from .text between 'init_module' (at offset 0x729) and 'eth16i_multicast' Cc: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/eth16i.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/eth16i.c b/drivers/net/eth16i.c index 4bf76f86d8e9..ca42efa9143c 100644 --- a/drivers/net/eth16i.c +++ b/drivers/net/eth16i.c @@ -1434,7 +1434,7 @@ MODULE_PARM_DESC(mediatype, "eth16i media type of interface(s) (bnc,tp,dix,auto, module_param(debug, int, 0); MODULE_PARM_DESC(debug, "eth16i debug level (0-6)"); -int init_module(void) +int __init init_module(void) { int this_dev, found = 0; struct net_device *dev; From 3805f0e28ca313893b87e881201561d5c1857dd8 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Mon, 14 Aug 2006 23:00:03 -0700 Subject: [PATCH 220/488] [PATCH] lance section fix WARNING: drivers/net/lance.o - Section mismatch: reference to .init.data:lance_portlist from .text between 'init_module' (at offset 0x8d3) and 'lance_purge_ring' Cc: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/lance.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/lance.c b/drivers/net/lance.c index c1c3452c90ca..5b4dbfe5fb77 100644 --- a/drivers/net/lance.c +++ b/drivers/net/lance.c @@ -326,7 +326,7 @@ MODULE_PARM_DESC(dma, "LANCE/PCnet ISA DMA channel (ignored for some devices)"); MODULE_PARM_DESC(irq, "LANCE/PCnet IRQ number (ignored for some devices)"); MODULE_PARM_DESC(lance_debug, "LANCE/PCnet debug level (0-7)"); -int init_module(void) +int __init init_module(void) { struct net_device *dev; int this_dev, found = 0; From dab3d02ec05d16aab680de471cb5d20c5d4852e8 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Mon, 14 Aug 2006 23:00:04 -0700 Subject: [PATCH 221/488] [PATCH] lne390 section fix WARNING: drivers/net/lne390.o - Section mismatch: reference to .init.text: from .text between 'init_module' (at offset 0x100) and 'lne390_close' Cc: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/lne390.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/lne390.c b/drivers/net/lne390.c index 646e89fc3562..c0ec7f6abcb2 100644 --- a/drivers/net/lne390.c +++ b/drivers/net/lne390.c @@ -406,7 +406,7 @@ MODULE_PARM_DESC(mem, "memory base address(es)"); MODULE_DESCRIPTION("Mylex LNE390A/B EISA Ethernet driver"); MODULE_LICENSE("GPL"); -int init_module(void) +int __init init_module(void) { struct net_device *dev; int this_dev, found = 0; From 19a8664d8a05f75cab3cd4eb8022d22d3f0c53c3 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Mon, 14 Aug 2006 23:00:05 -0700 Subject: [PATCH 222/488] [PATCH] ni52 section fix WARNING: drivers/net/ni52.o - Section mismatch: reference to .init.text:ni52_probe from .text between 'init_module' (at offset 0x997) and 'ni52_close' WARNING: drivers/net/ni65.o - Section mismatch: reference to .init.text:ni65_probe from .text between 'init_module' (at offset 0x54a) and 'ni65_stop_start' Cc: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/ni52.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ni52.c b/drivers/net/ni52.c index fa854c8fde75..4d52ecf8af56 100644 --- a/drivers/net/ni52.c +++ b/drivers/net/ni52.c @@ -1323,7 +1323,7 @@ MODULE_PARM_DESC(irq, "NI5210 IRQ number,required"); MODULE_PARM_DESC(memstart, "NI5210 memory base address,required"); MODULE_PARM_DESC(memend, "NI5210 memory end address,required"); -int init_module(void) +int __init init_module(void) { if(io <= 0x0 || !memend || !memstart || irq < 2) { printk("ni52: Autoprobing not allowed for modules.\nni52: Set symbols 'io' 'irq' 'memstart' and 'memend'\n"); From 6d2cdb4fd1cc1b15ad070a57c9b2bc40bb1565e7 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Mon, 14 Aug 2006 23:00:05 -0700 Subject: [PATCH 223/488] [PATCH] ibmtr section fix WARNING: drivers/net/tokenring/ibmtr.o - Section mismatch: reference to .init.data:ibmtr_mem_base from .text between 'ibmtr_probe1' (at offset 0x6e6) and 'ibmtr_probe_card' WARNING: drivers/net/tokenring/ibmtr.o - Section mismatch: reference to .init.data:ibmtr_mem_base from .text between 'ibmtr_probe1' (at offset 0x74a) and 'ibmtr_probe_card' WARNING: drivers/net/tokenring/ibmtr.o - Section mismatch: reference to .init.data:ibmtr_mem_base from .text between 'ibmtr_probe1' (at offset 0x7fd) and 'ibmtr_probe_card' Cc: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/tokenring/ibmtr.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/tokenring/ibmtr.c b/drivers/net/tokenring/ibmtr.c index 9f491563944e..4470025ff7f8 100644 --- a/drivers/net/tokenring/ibmtr.c +++ b/drivers/net/tokenring/ibmtr.c @@ -140,7 +140,7 @@ in the event that chatty debug messages are desired - jjs 12/30/98 */ /* version and credits */ #ifndef PCMCIA -static char version[] __initdata = +static char version[] __devinitdata = "\nibmtr.c: v1.3.57 8/ 7/94 Peter De Schrijver and Mark Swanson\n" " v2.1.125 10/20/98 Paul Norton \n" " v2.2.0 12/30/98 Joel Sloan \n" @@ -216,7 +216,7 @@ static int __devinitdata turbo_irq[IBMTR_MAX_ADAPTERS] = {0}; static int __devinitdata turbo_searched = 0; #ifndef PCMCIA -static __u32 ibmtr_mem_base __initdata = 0xd0000; +static __u32 ibmtr_mem_base __devinitdata = 0xd0000; #endif static void __devinit PrtChanID(char *pcid, short stride) From daca7cd7612639848c39744e02dab537755b31a1 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Mon, 14 Aug 2006 23:00:06 -0700 Subject: [PATCH 224/488] [PATCH] smctr section fix WARNING: drivers/net/tokenring/smctr.o - Section mismatch: reference to .init.text: from .text between 'init_module' (at offset 0x2ba0) and 'smctr_reset_adapter' WARNING: drivers/net/tokenring/smctr.o - Section mismatch: reference to .init.text:smctr_probe from .text between 'init_module' (at offset 0x2bf4) and 'smctr_reset_adapter' Cc: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/tokenring/smctr.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/net/tokenring/smctr.c b/drivers/net/tokenring/smctr.c index cd2e0251e2bc..85a7f797d343 100644 --- a/drivers/net/tokenring/smctr.c +++ b/drivers/net/tokenring/smctr.c @@ -5666,7 +5666,7 @@ module_param_array(io, int, NULL, 0); module_param_array(irq, int, NULL, 0); module_param(ringspeed, int, 0); -static struct net_device *setup_card(int n) +static struct net_device * __init setup_card(int n) { struct net_device *dev = alloc_trdev(sizeof(struct net_local)); int err; @@ -5696,9 +5696,8 @@ out: free_netdev(dev); return ERR_PTR(err); } - -int init_module(void) +int __init init_module(void) { int i, found = 0; struct net_device *dev; From 5e5fa01d55e9949660a89b23f4a43884eaf49097 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Mon, 14 Aug 2006 23:00:06 -0700 Subject: [PATCH 225/488] [PATCH] wd section fix WARNING: drivers/net/wd.o - Section mismatch: reference to .init.text: from .text between 'init_module' (at offset 0xfd) and 'wd_open' WARNING: drivers/net/wd.o - Section mismatch: reference to .init.text: from .text between 'init_module' (at offset 0x14b) and 'wd_open' WARNING: drivers/net/wd.o - Section mismatch: reference to .init.data:wd_portlist from .text between 'init_module' (at offset 0x17f) and 'wd_open' Cc: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/wd.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/wd.c b/drivers/net/wd.c index 7caa8dc88a58..b1ba1872f315 100644 --- a/drivers/net/wd.c +++ b/drivers/net/wd.c @@ -500,8 +500,8 @@ MODULE_LICENSE("GPL"); /* This is set up so that only a single autoprobe takes place per call. ISA device autoprobes on a running machine are not recommended. */ -int -init_module(void) + +int __init init_module(void) { struct net_device *dev; int this_dev, found = 0; From 1e13b0d82d24ac3c8b2f16a09dd9ce537cad134c Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Mon, 14 Aug 2006 23:00:07 -0700 Subject: [PATCH 226/488] [PATCH] ni65 section fix WARNING: drivers/net/ni65.o - Section mismatch: reference to .init.text:ni65_probe from .text between 'init_module' (at offset 0x54a) and 'ni65_stop_start' Cc: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/ni65.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ni65.c b/drivers/net/ni65.c index bb42ff218484..810cc572f5f7 100644 --- a/drivers/net/ni65.c +++ b/drivers/net/ni65.c @@ -1253,7 +1253,7 @@ MODULE_PARM_DESC(irq, "ni6510 IRQ number (ignored for some cards)"); MODULE_PARM_DESC(io, "ni6510 I/O base address"); MODULE_PARM_DESC(dma, "ni6510 ISA DMA channel (ignored for some cards)"); -int init_module(void) +int __init init_module(void) { dev_ni65 = ni65_probe(-1); return IS_ERR(dev_ni65) ? PTR_ERR(dev_ni65) : 0; From c971ef46cb94b8bb4a12555fa757e5f67934fcd9 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Mon, 14 Aug 2006 23:00:08 -0700 Subject: [PATCH 227/488] [PATCH] seeq8005 section fix WARNING: drivers/net/seeq8005.o - Section mismatch: reference to .init.text:seeq8005_probe from .text between 'init_module' (at offset 0x106) and 'seeq8005_open' Cc: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/seeq8005.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/seeq8005.c b/drivers/net/seeq8005.c index efd0f235020f..01392bca0223 100644 --- a/drivers/net/seeq8005.c +++ b/drivers/net/seeq8005.c @@ -742,7 +742,7 @@ module_param(irq, int, 0); MODULE_PARM_DESC(io, "SEEQ 8005 I/O base address"); MODULE_PARM_DESC(irq, "SEEQ 8005 IRQ number"); -int init_module(void) +int __init init_module(void) { dev_seeq = seeq8005_probe(-1); if (IS_ERR(dev_seeq)) From c9d26c9785d900d8547b268f0c0507f252879c48 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Mon, 14 Aug 2006 23:00:08 -0700 Subject: [PATCH 228/488] [PATCH] winbond-840 section fix With CONFIG_HOTPLUG=n it won't compile: drivers/net/tulip/winbond-840.c:141: error: version causes a section type conflict (For some reason it gets the same error if marked __initdata. Give up.) Cc: Valerie Henson Cc: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/tulip/winbond-840.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/tulip/winbond-840.c b/drivers/net/tulip/winbond-840.c index 7f414815cc62..eba9083da146 100644 --- a/drivers/net/tulip/winbond-840.c +++ b/drivers/net/tulip/winbond-840.c @@ -138,7 +138,7 @@ static int full_duplex[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1}; #include /* These identify the driver base version and may not be removed. */ -static char version[] __devinitdata = +static char version[] = KERN_INFO DRV_NAME ".c:v" DRV_VERSION " (2.4 port) " DRV_RELDATE " Donald Becker \n" KERN_INFO " http://www.scyld.com/network/drivers.html\n"; From 90d5aed2d9c7d2f3915b75342988114fd7b6c13d Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Mon, 14 Aug 2006 23:00:09 -0700 Subject: [PATCH 229/488] [PATCH] fealnx section fix With CONFIG_HOTPLUG=n it won't compile: distcc[25607] ERROR: compile drivers/net/fealnx.c on g5/64 failed version[] is referred to from both __init code and from __devinit code, so move it out of __init altogether. Cc: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/fealnx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/fealnx.c b/drivers/net/fealnx.c index 97d34fee8c1f..567e27413cfd 100644 --- a/drivers/net/fealnx.c +++ b/drivers/net/fealnx.c @@ -92,7 +92,7 @@ static int full_duplex[MAX_UNITS] = { -1, -1, -1, -1, -1, -1, -1, -1 }; #include /* These identify the driver base version and may not be removed. */ -static char version[] __devinitdata = +static char version[] = KERN_INFO DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE "\n"; From 3418e469ebaebec16f7df83074087eb901fb76b9 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Mon, 14 Aug 2006 23:00:10 -0700 Subject: [PATCH 230/488] [PATCH] sundance section fix drivers/net/sundance.c:110: error: version causes a section type conflict I don't understand this error. It's referred to from both __init and __devinit code. With CONFIG_HOTPLUG=n, version[] is placed in .init.data and is referred to from .init.text. Cc: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/sundance.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/sundance.c b/drivers/net/sundance.c index ac17377b3e9f..698568e751da 100644 --- a/drivers/net/sundance.c +++ b/drivers/net/sundance.c @@ -107,7 +107,7 @@ static char *media[MAX_UNITS]; #endif /* These identify the driver base version and may not be removed. */ -static char version[] __devinitdata = +static char version[] = KERN_INFO DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE " Written by Donald Becker\n" KERN_INFO " http://www.scyld.com/network/sundance.html\n"; From e4c780b1ffc7d7bc27b7dc57fcf17ebb8d3006bc Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Mon, 14 Aug 2006 23:00:10 -0700 Subject: [PATCH 231/488] [PATCH] drivers/net/e1000/: possible cleanups - make needlessly global functions static - #if 0 the following unused global functions: - e1000_hw.c: e1000_mc_addr_list_update() - e1000_hw.c: e1000_read_reg_io() - e1000_hw.c: e1000_enable_pciex_master() - e1000_hw.c: e1000_ife_disable_dynamic_power_down() - e1000_hw.c: e1000_ife_enable_dynamic_power_down() - e1000_hw.c: e1000_write_ich8_word() - e1000_hw.c: e1000_duplex_reversal() - e1000_main.c: e1000_io_read() Signed-off-by: Adrian Bunk Cc: John Ronciak Cc: Jesse Brandeburg Cc: Jeff Kirsher Cc: Auke Kok Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/e1000/e1000_hw.c | 89 +++++++++++++++++++++++++--------- drivers/net/e1000/e1000_hw.h | 32 ------------ drivers/net/e1000/e1000_main.c | 2 + 3 files changed, 67 insertions(+), 56 deletions(-) diff --git a/drivers/net/e1000/e1000_hw.c b/drivers/net/e1000/e1000_hw.c index 583518ae49ce..b3b919116e0f 100644 --- a/drivers/net/e1000/e1000_hw.c +++ b/drivers/net/e1000/e1000_hw.c @@ -105,6 +105,33 @@ static int32_t e1000_configure_kmrn_for_10_100(struct e1000_hw *hw, uint16_t duplex); static int32_t e1000_configure_kmrn_for_1000(struct e1000_hw *hw); +static int32_t e1000_erase_ich8_4k_segment(struct e1000_hw *hw, + uint32_t segment); +static int32_t e1000_get_software_flag(struct e1000_hw *hw); +static int32_t e1000_get_software_semaphore(struct e1000_hw *hw); +static int32_t e1000_init_lcd_from_nvm(struct e1000_hw *hw); +static int32_t e1000_kumeran_lock_loss_workaround(struct e1000_hw *hw); +static int32_t e1000_read_eeprom_ich8(struct e1000_hw *hw, uint16_t offset, + uint16_t words, uint16_t *data); +static int32_t e1000_read_ich8_byte(struct e1000_hw *hw, uint32_t index, + uint8_t* data); +static int32_t e1000_read_ich8_word(struct e1000_hw *hw, uint32_t index, + uint16_t *data); +static int32_t e1000_read_kmrn_reg(struct e1000_hw *hw, uint32_t reg_addr, + uint16_t *data); +static void e1000_release_software_flag(struct e1000_hw *hw); +static void e1000_release_software_semaphore(struct e1000_hw *hw); +static int32_t e1000_set_pci_ex_no_snoop(struct e1000_hw *hw, + uint32_t no_snoop); +static int32_t e1000_verify_write_ich8_byte(struct e1000_hw *hw, + uint32_t index, uint8_t byte); +static int32_t e1000_write_eeprom_ich8(struct e1000_hw *hw, uint16_t offset, + uint16_t words, uint16_t *data); +static int32_t e1000_write_ich8_byte(struct e1000_hw *hw, uint32_t index, + uint8_t data); +static int32_t e1000_write_kmrn_reg(struct e1000_hw *hw, uint32_t reg_addr, + uint16_t data); + /* IGP cable length table */ static const uint16_t e1000_igp_cable_length_table[IGP01E1000_AGC_LENGTH_TABLE_SIZE] = @@ -3233,7 +3260,7 @@ e1000_shift_in_mdi_bits(struct e1000_hw *hw) return data; } -int32_t +static int32_t e1000_swfw_sync_acquire(struct e1000_hw *hw, uint16_t mask) { uint32_t swfw_sync = 0; @@ -3277,7 +3304,7 @@ e1000_swfw_sync_acquire(struct e1000_hw *hw, uint16_t mask) return E1000_SUCCESS; } -void +static void e1000_swfw_sync_release(struct e1000_hw *hw, uint16_t mask) { uint32_t swfw_sync; @@ -3575,7 +3602,7 @@ e1000_write_phy_reg_ex(struct e1000_hw *hw, return E1000_SUCCESS; } -int32_t +static int32_t e1000_read_kmrn_reg(struct e1000_hw *hw, uint32_t reg_addr, uint16_t *data) @@ -3608,7 +3635,7 @@ e1000_read_kmrn_reg(struct e1000_hw *hw, return E1000_SUCCESS; } -int32_t +static int32_t e1000_write_kmrn_reg(struct e1000_hw *hw, uint32_t reg_addr, uint16_t data) @@ -3839,7 +3866,7 @@ e1000_phy_powerdown_workaround(struct e1000_hw *hw) * * hw - struct containing variables accessed by shared code ******************************************************************************/ -int32_t +static int32_t e1000_kumeran_lock_loss_workaround(struct e1000_hw *hw) { int32_t ret_val; @@ -4086,7 +4113,7 @@ e1000_phy_igp_get_info(struct e1000_hw *hw, * hw - Struct containing variables accessed by shared code * phy_info - PHY information structure ******************************************************************************/ -int32_t +static int32_t e1000_phy_ife_get_info(struct e1000_hw *hw, struct e1000_phy_info *phy_info) { @@ -5643,6 +5670,7 @@ e1000_init_rx_addrs(struct e1000_hw *hw) * for the first 15 multicast addresses, and hashes the rest into the * multicast table. *****************************************************************************/ +#if 0 void e1000_mc_addr_list_update(struct e1000_hw *hw, uint8_t *mc_addr_list, @@ -5719,6 +5747,7 @@ e1000_mc_addr_list_update(struct e1000_hw *hw, } DEBUGOUT("MC Update Complete\n"); } +#endif /* 0 */ /****************************************************************************** * Hashes an address to determine its location in the multicast table @@ -6587,6 +6616,7 @@ e1000_get_bus_info(struct e1000_hw *hw) * hw - Struct containing variables accessed by shared code * offset - offset to read from *****************************************************************************/ +#if 0 uint32_t e1000_read_reg_io(struct e1000_hw *hw, uint32_t offset) @@ -6597,6 +6627,7 @@ e1000_read_reg_io(struct e1000_hw *hw, e1000_io_write(hw, io_addr, offset); return e1000_io_read(hw, io_data); } +#endif /* 0 */ /****************************************************************************** * Writes a value to one of the devices registers using port I/O (as opposed to @@ -7909,6 +7940,7 @@ e1000_set_pci_express_master_disable(struct e1000_hw *hw) * returns: - none. * ***************************************************************************/ +#if 0 void e1000_enable_pciex_master(struct e1000_hw *hw) { @@ -7923,6 +7955,7 @@ e1000_enable_pciex_master(struct e1000_hw *hw) ctrl &= ~E1000_CTRL_GIO_MASTER_DISABLE; E1000_WRITE_REG(hw, CTRL, ctrl); } +#endif /* 0 */ /******************************************************************************* * @@ -8148,7 +8181,7 @@ e1000_put_hw_eeprom_semaphore(struct e1000_hw *hw) * E1000_SUCCESS at any other case. * ***************************************************************************/ -int32_t +static int32_t e1000_get_software_semaphore(struct e1000_hw *hw) { int32_t timeout = hw->eeprom.word_size + 1; @@ -8183,7 +8216,7 @@ e1000_get_software_semaphore(struct e1000_hw *hw) * hw: Struct containing variables accessed by shared code * ***************************************************************************/ -void +static void e1000_release_software_semaphore(struct e1000_hw *hw) { uint32_t swsm; @@ -8265,7 +8298,7 @@ e1000_arc_subsystem_valid(struct e1000_hw *hw) * returns: E1000_SUCCESS * *****************************************************************************/ -int32_t +static int32_t e1000_set_pci_ex_no_snoop(struct e1000_hw *hw, uint32_t no_snoop) { uint32_t gcr_reg = 0; @@ -8306,7 +8339,7 @@ e1000_set_pci_ex_no_snoop(struct e1000_hw *hw, uint32_t no_snoop) * hw: Struct containing variables accessed by shared code * ***************************************************************************/ -int32_t +static int32_t e1000_get_software_flag(struct e1000_hw *hw) { int32_t timeout = PHY_CFG_TIMEOUT; @@ -8345,7 +8378,7 @@ e1000_get_software_flag(struct e1000_hw *hw) * hw: Struct containing variables accessed by shared code * ***************************************************************************/ -void +static void e1000_release_software_flag(struct e1000_hw *hw) { uint32_t extcnf_ctrl; @@ -8369,6 +8402,7 @@ e1000_release_software_flag(struct e1000_hw *hw) * hw: Struct containing variables accessed by shared code * ***************************************************************************/ +#if 0 int32_t e1000_ife_disable_dynamic_power_down(struct e1000_hw *hw) { @@ -8388,6 +8422,7 @@ e1000_ife_disable_dynamic_power_down(struct e1000_hw *hw) return ret_val; } +#endif /* 0 */ /*************************************************************************** * @@ -8397,6 +8432,7 @@ e1000_ife_disable_dynamic_power_down(struct e1000_hw *hw) * hw: Struct containing variables accessed by shared code * ***************************************************************************/ +#if 0 int32_t e1000_ife_enable_dynamic_power_down(struct e1000_hw *hw) { @@ -8416,6 +8452,7 @@ e1000_ife_enable_dynamic_power_down(struct e1000_hw *hw) return ret_val; } +#endif /* 0 */ /****************************************************************************** * Reads a 16 bit word or words from the EEPROM using the ICH8's flash access @@ -8426,7 +8463,7 @@ e1000_ife_enable_dynamic_power_down(struct e1000_hw *hw) * data - word read from the EEPROM * words - number of words to read *****************************************************************************/ -int32_t +static int32_t e1000_read_eeprom_ich8(struct e1000_hw *hw, uint16_t offset, uint16_t words, uint16_t *data) { @@ -8482,7 +8519,7 @@ e1000_read_eeprom_ich8(struct e1000_hw *hw, uint16_t offset, uint16_t words, * words - number of words to write * data - words to write to the EEPROM *****************************************************************************/ -int32_t +static int32_t e1000_write_eeprom_ich8(struct e1000_hw *hw, uint16_t offset, uint16_t words, uint16_t *data) { @@ -8529,7 +8566,7 @@ e1000_write_eeprom_ich8(struct e1000_hw *hw, uint16_t offset, uint16_t words, * * hw - The pointer to the hw structure ****************************************************************************/ -int32_t +static int32_t e1000_ich8_cycle_init(struct e1000_hw *hw) { union ich8_hws_flash_status hsfsts; @@ -8596,7 +8633,7 @@ e1000_ich8_cycle_init(struct e1000_hw *hw) * * hw - The pointer to the hw structure ****************************************************************************/ -int32_t +static int32_t e1000_ich8_flash_cycle(struct e1000_hw *hw, uint32_t timeout) { union ich8_hws_flash_ctrl hsflctl; @@ -8631,7 +8668,7 @@ e1000_ich8_flash_cycle(struct e1000_hw *hw, uint32_t timeout) * size - Size of data to read, 1=byte 2=word * data - Pointer to the word to store the value read. *****************************************************************************/ -int32_t +static int32_t e1000_read_ich8_data(struct e1000_hw *hw, uint32_t index, uint32_t size, uint16_t* data) { @@ -8710,7 +8747,7 @@ e1000_read_ich8_data(struct e1000_hw *hw, uint32_t index, * size - Size of data to read, 1=byte 2=word * data - The byte(s) to write to the NVM. *****************************************************************************/ -int32_t +static int32_t e1000_write_ich8_data(struct e1000_hw *hw, uint32_t index, uint32_t size, uint16_t data) { @@ -8785,7 +8822,7 @@ e1000_write_ich8_data(struct e1000_hw *hw, uint32_t index, uint32_t size, * index - The index of the byte to read. * data - Pointer to a byte to store the value read. *****************************************************************************/ -int32_t +static int32_t e1000_read_ich8_byte(struct e1000_hw *hw, uint32_t index, uint8_t* data) { int32_t status = E1000_SUCCESS; @@ -8808,7 +8845,7 @@ e1000_read_ich8_byte(struct e1000_hw *hw, uint32_t index, uint8_t* data) * index - The index of the byte to write. * byte - The byte to write to the NVM. *****************************************************************************/ -int32_t +static int32_t e1000_verify_write_ich8_byte(struct e1000_hw *hw, uint32_t index, uint8_t byte) { int32_t error = E1000_SUCCESS; @@ -8839,7 +8876,7 @@ e1000_verify_write_ich8_byte(struct e1000_hw *hw, uint32_t index, uint8_t byte) * index - The index of the byte to read. * data - The byte to write to the NVM. *****************************************************************************/ -int32_t +static int32_t e1000_write_ich8_byte(struct e1000_hw *hw, uint32_t index, uint8_t data) { int32_t status = E1000_SUCCESS; @@ -8857,7 +8894,7 @@ e1000_write_ich8_byte(struct e1000_hw *hw, uint32_t index, uint8_t data) * index - The starting byte index of the word to read. * data - Pointer to a word to store the value read. *****************************************************************************/ -int32_t +static int32_t e1000_read_ich8_word(struct e1000_hw *hw, uint32_t index, uint16_t *data) { int32_t status = E1000_SUCCESS; @@ -8872,6 +8909,7 @@ e1000_read_ich8_word(struct e1000_hw *hw, uint32_t index, uint16_t *data) * index - The starting byte index of the word to read. * data - The word to write to the NVM. *****************************************************************************/ +#if 0 int32_t e1000_write_ich8_word(struct e1000_hw *hw, uint32_t index, uint16_t data) { @@ -8879,6 +8917,7 @@ e1000_write_ich8_word(struct e1000_hw *hw, uint32_t index, uint16_t data) status = e1000_write_ich8_data(hw, index, 2, data); return status; } +#endif /* 0 */ /****************************************************************************** * Erases the bank specified. Each bank is a 4k block. Segments are 0 based. @@ -8887,7 +8926,7 @@ e1000_write_ich8_word(struct e1000_hw *hw, uint32_t index, uint16_t data) * hw - pointer to e1000_hw structure * segment - 0 for first segment, 1 for second segment, etc. *****************************************************************************/ -int32_t +static int32_t e1000_erase_ich8_4k_segment(struct e1000_hw *hw, uint32_t segment) { union ich8_hws_flash_status hsfsts; @@ -8984,6 +9023,7 @@ e1000_erase_ich8_4k_segment(struct e1000_hw *hw, uint32_t segment) * hw: Struct containing variables accessed by shared code * *****************************************************************************/ +#if 0 int32_t e1000_duplex_reversal(struct e1000_hw *hw) { @@ -9012,8 +9052,9 @@ e1000_duplex_reversal(struct e1000_hw *hw) return ret_val; } +#endif /* 0 */ -int32_t +static int32_t e1000_init_lcd_from_nvm_config_region(struct e1000_hw *hw, uint32_t cnf_base_addr, uint32_t cnf_size) { @@ -9047,7 +9088,7 @@ e1000_init_lcd_from_nvm_config_region(struct e1000_hw *hw, } -int32_t +static int32_t e1000_init_lcd_from_nvm(struct e1000_hw *hw) { uint32_t reg_data, cnf_base_addr, cnf_size, ret_val, loop; diff --git a/drivers/net/e1000/e1000_hw.h b/drivers/net/e1000/e1000_hw.h index f9341e3276b3..375b95518c31 100644 --- a/drivers/net/e1000/e1000_hw.h +++ b/drivers/net/e1000/e1000_hw.h @@ -323,13 +323,8 @@ int32_t e1000_write_phy_reg(struct e1000_hw *hw, uint32_t reg_addr, uint16_t dat int32_t e1000_phy_hw_reset(struct e1000_hw *hw); int32_t e1000_phy_reset(struct e1000_hw *hw); void e1000_phy_powerdown_workaround(struct e1000_hw *hw); -int32_t e1000_kumeran_lock_loss_workaround(struct e1000_hw *hw); -int32_t e1000_init_lcd_from_nvm_config_region(struct e1000_hw *hw, uint32_t cnf_base_addr, uint32_t cnf_size); -int32_t e1000_init_lcd_from_nvm(struct e1000_hw *hw); int32_t e1000_phy_get_info(struct e1000_hw *hw, struct e1000_phy_info *phy_info); int32_t e1000_validate_mdi_setting(struct e1000_hw *hw); -int32_t e1000_read_kmrn_reg(struct e1000_hw *hw, uint32_t reg_addr, uint16_t *data); -int32_t e1000_write_kmrn_reg(struct e1000_hw *hw, uint32_t reg_addr, uint16_t data); /* EEPROM Functions */ int32_t e1000_init_eeprom_params(struct e1000_hw *hw); @@ -400,13 +395,8 @@ int32_t e1000_update_eeprom_checksum(struct e1000_hw *hw); int32_t e1000_write_eeprom(struct e1000_hw *hw, uint16_t reg, uint16_t words, uint16_t *data); int32_t e1000_read_part_num(struct e1000_hw *hw, uint32_t * part_num); int32_t e1000_read_mac_addr(struct e1000_hw * hw); -int32_t e1000_swfw_sync_acquire(struct e1000_hw *hw, uint16_t mask); -void e1000_swfw_sync_release(struct e1000_hw *hw, uint16_t mask); -void e1000_release_software_flag(struct e1000_hw *hw); -int32_t e1000_get_software_flag(struct e1000_hw *hw); /* Filters (multicast, vlan, receive) */ -void e1000_mc_addr_list_update(struct e1000_hw *hw, uint8_t * mc_addr_list, uint32_t mc_addr_count, uint32_t pad, uint32_t rar_used_count); uint32_t e1000_hash_mc_addr(struct e1000_hw *hw, uint8_t * mc_addr); void e1000_mta_set(struct e1000_hw *hw, uint32_t hash_value); void e1000_rar_set(struct e1000_hw *hw, uint8_t * mc_addr, uint32_t rar_index); @@ -431,31 +421,9 @@ void e1000_pci_clear_mwi(struct e1000_hw *hw); void e1000_read_pci_cfg(struct e1000_hw *hw, uint32_t reg, uint16_t * value); void e1000_write_pci_cfg(struct e1000_hw *hw, uint32_t reg, uint16_t * value); /* Port I/O is only supported on 82544 and newer */ -uint32_t e1000_io_read(struct e1000_hw *hw, unsigned long port); -uint32_t e1000_read_reg_io(struct e1000_hw *hw, uint32_t offset); void e1000_io_write(struct e1000_hw *hw, unsigned long port, uint32_t value); -void e1000_enable_pciex_master(struct e1000_hw *hw); int32_t e1000_disable_pciex_master(struct e1000_hw *hw); -int32_t e1000_get_software_semaphore(struct e1000_hw *hw); -void e1000_release_software_semaphore(struct e1000_hw *hw); int32_t e1000_check_phy_reset_block(struct e1000_hw *hw); -int32_t e1000_set_pci_ex_no_snoop(struct e1000_hw *hw, uint32_t no_snoop); - -int32_t e1000_read_ich8_byte(struct e1000_hw *hw, uint32_t index, - uint8_t *data); -int32_t e1000_verify_write_ich8_byte(struct e1000_hw *hw, uint32_t index, - uint8_t byte); -int32_t e1000_write_ich8_byte(struct e1000_hw *hw, uint32_t index, - uint8_t byte); -int32_t e1000_read_ich8_word(struct e1000_hw *hw, uint32_t index, - uint16_t *data); -int32_t e1000_read_ich8_data(struct e1000_hw *hw, uint32_t index, - uint32_t size, uint16_t *data); -int32_t e1000_read_eeprom_ich8(struct e1000_hw *hw, uint16_t offset, - uint16_t words, uint16_t *data); -int32_t e1000_write_eeprom_ich8(struct e1000_hw *hw, uint16_t offset, - uint16_t words, uint16_t *data); -int32_t e1000_erase_ich8_4k_segment(struct e1000_hw *hw, uint32_t segment); #define E1000_READ_REG_IO(a, reg) \ diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c index 627f224d78bc..726f43d55937 100644 --- a/drivers/net/e1000/e1000_main.c +++ b/drivers/net/e1000/e1000_main.c @@ -4386,11 +4386,13 @@ e1000_write_pci_cfg(struct e1000_hw *hw, uint32_t reg, uint16_t *value) pci_write_config_word(adapter->pdev, reg, *value); } +#if 0 uint32_t e1000_io_read(struct e1000_hw *hw, unsigned long port) { return inl(port); } +#endif /* 0 */ void e1000_io_write(struct e1000_hw *hw, unsigned long port, uint32_t value) From ce973b141dfac4a0f160c7435d65e3ea47753ce8 Mon Sep 17 00:00:00 2001 From: Li Yang Date: Mon, 14 Aug 2006 23:00:11 -0700 Subject: [PATCH 232/488] [PATCH] Freescale QE UCC gigabit ethernet driver QE(QUICC Engine) is a new generation communication coprocessor, which can be found on some of the latest Freescale PowerQUICC CPUs(e.g. MPC8360). The UCC(Unified Communications Controller) module of QE can work as gigabit Ethernet device. This patch provides driver for the device. Signed-off-by: Shlomi Gridish Signed-off-by: Li Yang Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/Kconfig | 27 + drivers/net/Makefile | 3 + drivers/net/ucc_geth.c | 4278 ++++++++++++++++++++++++++++++++++++ drivers/net/ucc_geth.h | 1339 +++++++++++ drivers/net/ucc_geth_phy.c | 801 +++++++ drivers/net/ucc_geth_phy.h | 217 ++ 6 files changed, 6665 insertions(+) create mode 100644 drivers/net/ucc_geth.c create mode 100644 drivers/net/ucc_geth.h create mode 100644 drivers/net/ucc_geth_phy.c create mode 100644 drivers/net/ucc_geth_phy.h diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index 39189903e355..ea1796e767b7 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -2219,6 +2219,33 @@ config GFAR_NAPI bool "NAPI Support" depends on GIANFAR +config UCC_GETH + tristate "Freescale QE UCC GETH" + depends on QUICC_ENGINE && UCC_FAST + help + This driver supports the Gigabit Ethernet mode of QE UCC. + QE can be found on MPC836x CPUs. + +config UGETH_NAPI + bool "NAPI Support" + depends on UCC_GETH + +config UGETH_MAGIC_PACKET + bool "Magic Packet detection support" + depends on UCC_GETH + +config UGETH_FILTERING + bool "Mac address filtering support" + depends on UCC_GETH + +config UGETH_TX_ON_DEMOND + bool "Transmit on Demond support" + depends on UCC_GETH + +config UGETH_HAS_GIGA + bool + depends on UCC_GETH && MPC836x + config MV643XX_ETH tristate "MV-643XX Ethernet support" depends on MOMENCO_OCELOT_C || MOMENCO_JAGUAR_ATX || MV64360 || MOMENCO_OCELOT_3 || PPC_MULTIPLATFORM diff --git a/drivers/net/Makefile b/drivers/net/Makefile index c91e95126f78..8427bf9dec9d 100644 --- a/drivers/net/Makefile +++ b/drivers/net/Makefile @@ -18,6 +18,9 @@ gianfar_driver-objs := gianfar.o \ gianfar_mii.o \ gianfar_sysfs.o +obj-$(CONFIG_UCC_GETH) += ucc_geth_driver.o +ucc_geth_driver-objs := ucc_geth.o ucc_geth_phy.o + # # link order important here # diff --git a/drivers/net/ucc_geth.c b/drivers/net/ucc_geth.c new file mode 100644 index 000000000000..47f49ef72bdc --- /dev/null +++ b/drivers/net/ucc_geth.c @@ -0,0 +1,4278 @@ +/* + * Copyright (C) Freescale Semicondutor, Inc. 2006. All rights reserved. + * + * Author: Shlomi Gridish + * + * Description: + * QE UCC Gigabit Ethernet Driver + * + * Changelog: + * Jul 6, 2006 Li Yang + * - Rearrange code and style fixes + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include + +#include "ucc_geth.h" +#include "ucc_geth_phy.h" + +#undef DEBUG + +#define DRV_DESC "QE UCC Gigabit Ethernet Controller version:June 20, 2006" +#define DRV_NAME "ucc_geth" + +#define ugeth_printk(level, format, arg...) \ + printk(level format "\n", ## arg) + +#define ugeth_dbg(format, arg...) \ + ugeth_printk(KERN_DEBUG , format , ## arg) +#define ugeth_err(format, arg...) \ + ugeth_printk(KERN_ERR , format , ## arg) +#define ugeth_info(format, arg...) \ + ugeth_printk(KERN_INFO , format , ## arg) +#define ugeth_warn(format, arg...) \ + ugeth_printk(KERN_WARNING , format , ## arg) + +#ifdef UGETH_VERBOSE_DEBUG +#define ugeth_vdbg ugeth_dbg +#else +#define ugeth_vdbg(fmt, args...) do { } while (0) +#endif /* UGETH_VERBOSE_DEBUG */ + +static DEFINE_SPINLOCK(ugeth_lock); + +static ucc_geth_info_t ugeth_primary_info = { + .uf_info = { + .bd_mem_part = MEM_PART_SYSTEM, + .rtsm = UCC_FAST_SEND_IDLES_BETWEEN_FRAMES, + .max_rx_buf_length = 1536, +/* FIXME: should be changed in run time for 1G and 100M */ +#ifdef CONFIG_UGETH_HAS_GIGA + .urfs = UCC_GETH_URFS_GIGA_INIT, + .urfet = UCC_GETH_URFET_GIGA_INIT, + .urfset = UCC_GETH_URFSET_GIGA_INIT, + .utfs = UCC_GETH_UTFS_GIGA_INIT, + .utfet = UCC_GETH_UTFET_GIGA_INIT, + .utftt = UCC_GETH_UTFTT_GIGA_INIT, +#else + .urfs = UCC_GETH_URFS_INIT, + .urfet = UCC_GETH_URFET_INIT, + .urfset = UCC_GETH_URFSET_INIT, + .utfs = UCC_GETH_UTFS_INIT, + .utfet = UCC_GETH_UTFET_INIT, + .utftt = UCC_GETH_UTFTT_INIT, +#endif + .ufpt = 256, + .mode = UCC_FAST_PROTOCOL_MODE_ETHERNET, + .ttx_trx = UCC_FAST_GUMR_TRANSPARENT_TTX_TRX_NORMAL, + .tenc = UCC_FAST_TX_ENCODING_NRZ, + .renc = UCC_FAST_RX_ENCODING_NRZ, + .tcrc = UCC_FAST_16_BIT_CRC, + .synl = UCC_FAST_SYNC_LEN_NOT_USED, + }, + .numQueuesTx = 1, + .numQueuesRx = 1, + .extendedFilteringChainPointer = ((uint32_t) NULL), + .typeorlen = 3072 /*1536 */ , + .nonBackToBackIfgPart1 = 0x40, + .nonBackToBackIfgPart2 = 0x60, + .miminumInterFrameGapEnforcement = 0x50, + .backToBackInterFrameGap = 0x60, + .mblinterval = 128, + .nortsrbytetime = 5, + .fracsiz = 1, + .strictpriorityq = 0xff, + .altBebTruncation = 0xa, + .excessDefer = 1, + .maxRetransmission = 0xf, + .collisionWindow = 0x37, + .receiveFlowControl = 1, + .maxGroupAddrInHash = 4, + .maxIndAddrInHash = 4, + .prel = 7, + .maxFrameLength = 1518, + .minFrameLength = 64, + .maxD1Length = 1520, + .maxD2Length = 1520, + .vlantype = 0x8100, + .ecamptr = ((uint32_t) NULL), + .eventRegMask = UCCE_OTHER, + .pausePeriod = 0xf000, + .interruptcoalescingmaxvalue = {1, 1, 1, 1, 1, 1, 1, 1}, + .bdRingLenTx = { + TX_BD_RING_LEN, + TX_BD_RING_LEN, + TX_BD_RING_LEN, + TX_BD_RING_LEN, + TX_BD_RING_LEN, + TX_BD_RING_LEN, + TX_BD_RING_LEN, + TX_BD_RING_LEN}, + + .bdRingLenRx = { + RX_BD_RING_LEN, + RX_BD_RING_LEN, + RX_BD_RING_LEN, + RX_BD_RING_LEN, + RX_BD_RING_LEN, + RX_BD_RING_LEN, + RX_BD_RING_LEN, + RX_BD_RING_LEN}, + + .numStationAddresses = UCC_GETH_NUM_OF_STATION_ADDRESSES_1, + .largestexternallookupkeysize = + QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_NONE, + .statisticsMode = UCC_GETH_STATISTICS_GATHERING_MODE_NONE, + .vlanOperationTagged = UCC_GETH_VLAN_OPERATION_TAGGED_NOP, + .vlanOperationNonTagged = UCC_GETH_VLAN_OPERATION_NON_TAGGED_NOP, + .rxQoSMode = UCC_GETH_QOS_MODE_DEFAULT, + .aufc = UPSMR_AUTOMATIC_FLOW_CONTROL_MODE_NONE, + .padAndCrc = MACCFG2_PAD_AND_CRC_MODE_PAD_AND_CRC, + .numThreadsTx = UCC_GETH_NUM_OF_THREADS_4, + .numThreadsRx = UCC_GETH_NUM_OF_THREADS_4, + .riscTx = QE_RISC_ALLOCATION_RISC1_AND_RISC2, + .riscRx = QE_RISC_ALLOCATION_RISC1_AND_RISC2, +}; + +static ucc_geth_info_t ugeth_info[8]; + +#ifdef DEBUG +static void mem_disp(u8 *addr, int size) +{ + u8 *i; + int size16Aling = (size >> 4) << 4; + int size4Aling = (size >> 2) << 2; + int notAlign = 0; + if (size % 16) + notAlign = 1; + + for (i = addr; (u32) i < (u32) addr + size16Aling; i += 16) + printk("0x%08x: %08x %08x %08x %08x\r\n", + (u32) i, + *((u32 *) (i)), + *((u32 *) (i + 4)), + *((u32 *) (i + 8)), *((u32 *) (i + 12))); + if (notAlign == 1) + printk("0x%08x: ", (u32) i); + for (; (u32) i < (u32) addr + size4Aling; i += 4) + printk("%08x ", *((u32 *) (i))); + for (; (u32) i < (u32) addr + size; i++) + printk("%02x", *((u8 *) (i))); + if (notAlign == 1) + printk("\r\n"); +} +#endif /* DEBUG */ + +#ifdef CONFIG_UGETH_FILTERING +static void enqueue(struct list_head *node, struct list_head *lh) +{ + unsigned long flags; + + spin_lock_irqsave(ugeth_lock, flags); + list_add_tail(node, lh); + spin_unlock_irqrestore(ugeth_lock, flags); +} +#endif /* CONFIG_UGETH_FILTERING */ + +static struct list_head *dequeue(struct list_head *lh) +{ + unsigned long flags; + + spin_lock_irqsave(ugeth_lock, flags); + if (!list_empty(lh)) { + struct list_head *node = lh->next; + list_del(node); + spin_unlock_irqrestore(ugeth_lock, flags); + return node; + } else { + spin_unlock_irqrestore(ugeth_lock, flags); + return NULL; + } +} + +static int get_interface_details(enet_interface_e enet_interface, + enet_speed_e *speed, + int *r10m, + int *rmm, + int *rpm, + int *tbi, int *limited_to_full_duplex) +{ + /* Analyze enet_interface according to Interface Mode + Configuration table */ + switch (enet_interface) { + case ENET_10_MII: + *speed = ENET_SPEED_10BT; + break; + case ENET_10_RMII: + *speed = ENET_SPEED_10BT; + *r10m = 1; + *rmm = 1; + break; + case ENET_10_RGMII: + *speed = ENET_SPEED_10BT; + *rpm = 1; + *r10m = 1; + *limited_to_full_duplex = 1; + break; + case ENET_100_MII: + *speed = ENET_SPEED_100BT; + break; + case ENET_100_RMII: + *speed = ENET_SPEED_100BT; + *rmm = 1; + break; + case ENET_100_RGMII: + *speed = ENET_SPEED_100BT; + *rpm = 1; + *limited_to_full_duplex = 1; + break; + case ENET_1000_GMII: + *speed = ENET_SPEED_1000BT; + *limited_to_full_duplex = 1; + break; + case ENET_1000_RGMII: + *speed = ENET_SPEED_1000BT; + *rpm = 1; + *limited_to_full_duplex = 1; + break; + case ENET_1000_TBI: + *speed = ENET_SPEED_1000BT; + *tbi = 1; + *limited_to_full_duplex = 1; + break; + case ENET_1000_RTBI: + *speed = ENET_SPEED_1000BT; + *rpm = 1; + *tbi = 1; + *limited_to_full_duplex = 1; + break; + default: + return -EINVAL; + break; + } + + return 0; +} + +static struct sk_buff *get_new_skb(ucc_geth_private_t *ugeth, u8 *bd) +{ + struct sk_buff *skb = NULL; + + skb = dev_alloc_skb(ugeth->ug_info->uf_info.max_rx_buf_length + + UCC_GETH_RX_DATA_BUF_ALIGNMENT); + + if (skb == NULL) + return NULL; + + /* We need the data buffer to be aligned properly. We will reserve + * as many bytes as needed to align the data properly + */ + skb_reserve(skb, + UCC_GETH_RX_DATA_BUF_ALIGNMENT - + (((unsigned)skb->data) & (UCC_GETH_RX_DATA_BUF_ALIGNMENT - + 1))); + + skb->dev = ugeth->dev; + + BD_BUFFER_SET(bd, + dma_map_single(NULL, + skb->data, + ugeth->ug_info->uf_info.max_rx_buf_length + + UCC_GETH_RX_DATA_BUF_ALIGNMENT, + DMA_FROM_DEVICE)); + + BD_STATUS_AND_LENGTH_SET(bd, + (R_E | R_I | + (BD_STATUS_AND_LENGTH(bd) & R_W))); + + return skb; +} + +static int rx_bd_buffer_set(ucc_geth_private_t *ugeth, u8 rxQ) +{ + u8 *bd; + u32 bd_status; + struct sk_buff *skb; + int i; + + bd = ugeth->p_rx_bd_ring[rxQ]; + i = 0; + + do { + bd_status = BD_STATUS_AND_LENGTH(bd); + skb = get_new_skb(ugeth, bd); + + if (!skb) /* If can not allocate data buffer, + abort. Cleanup will be elsewhere */ + return -ENOMEM; + + ugeth->rx_skbuff[rxQ][i] = skb; + + /* advance the BD pointer */ + bd += UCC_GETH_SIZE_OF_BD; + i++; + } while (!(bd_status & R_W)); + + return 0; +} + +static int fill_init_enet_entries(ucc_geth_private_t *ugeth, + volatile u32 *p_start, + u8 num_entries, + u32 thread_size, + u32 thread_alignment, + qe_risc_allocation_e risc, + int skip_page_for_first_entry) +{ + u32 init_enet_offset; + u8 i; + int snum; + + for (i = 0; i < num_entries; i++) { + if ((snum = qe_get_snum()) < 0) { + ugeth_err("fill_init_enet_entries: Can not get SNUM."); + return snum; + } + if ((i == 0) && skip_page_for_first_entry) + /* First entry of Rx does not have page */ + init_enet_offset = 0; + else { + init_enet_offset = + qe_muram_alloc(thread_size, thread_alignment); + if (IS_MURAM_ERR(init_enet_offset)) { + ugeth_err + ("fill_init_enet_entries: Can not allocate DPRAM memory."); + qe_put_snum((u8) snum); + return -ENOMEM; + } + } + *(p_start++) = + ((u8) snum << ENET_INIT_PARAM_SNUM_SHIFT) | init_enet_offset + | risc; + } + + return 0; +} + +static int return_init_enet_entries(ucc_geth_private_t *ugeth, + volatile u32 *p_start, + u8 num_entries, + qe_risc_allocation_e risc, + int skip_page_for_first_entry) +{ + u32 init_enet_offset; + u8 i; + int snum; + + for (i = 0; i < num_entries; i++) { + /* Check that this entry was actually valid -- + needed in case failed in allocations */ + if ((*p_start & ENET_INIT_PARAM_RISC_MASK) == risc) { + snum = + (u32) (*p_start & ENET_INIT_PARAM_SNUM_MASK) >> + ENET_INIT_PARAM_SNUM_SHIFT; + qe_put_snum((u8) snum); + if (!((i == 0) && skip_page_for_first_entry)) { + /* First entry of Rx does not have page */ + init_enet_offset = + (in_be32(p_start) & + ENET_INIT_PARAM_PTR_MASK); + qe_muram_free(init_enet_offset); + } + *(p_start++) = 0; /* Just for cosmetics */ + } + } + + return 0; +} + +#ifdef DEBUG +static int dump_init_enet_entries(ucc_geth_private_t *ugeth, + volatile u32 *p_start, + u8 num_entries, + u32 thread_size, + qe_risc_allocation_e risc, + int skip_page_for_first_entry) +{ + u32 init_enet_offset; + u8 i; + int snum; + + for (i = 0; i < num_entries; i++) { + /* Check that this entry was actually valid -- + needed in case failed in allocations */ + if ((*p_start & ENET_INIT_PARAM_RISC_MASK) == risc) { + snum = + (u32) (*p_start & ENET_INIT_PARAM_SNUM_MASK) >> + ENET_INIT_PARAM_SNUM_SHIFT; + qe_put_snum((u8) snum); + if (!((i == 0) && skip_page_for_first_entry)) { + /* First entry of Rx does not have page */ + init_enet_offset = + (in_be32(p_start) & + ENET_INIT_PARAM_PTR_MASK); + ugeth_info("Init enet entry %d:", i); + ugeth_info("Base address: 0x%08x", + (u32) + qe_muram_addr(init_enet_offset)); + mem_disp(qe_muram_addr(init_enet_offset), + thread_size); + } + p_start++; + } + } + + return 0; +} +#endif + +#ifdef CONFIG_UGETH_FILTERING +static enet_addr_container_t *get_enet_addr_container(void) +{ + enet_addr_container_t *enet_addr_cont; + + /* allocate memory */ + enet_addr_cont = kmalloc(sizeof(enet_addr_container_t), GFP_KERNEL); + if (!enet_addr_cont) { + ugeth_err("%s: No memory for enet_addr_container_t object.", + __FUNCTION__); + return NULL; + } + + return enet_addr_cont; +} +#endif /* CONFIG_UGETH_FILTERING */ + +static void put_enet_addr_container(enet_addr_container_t *enet_addr_cont) +{ + kfree(enet_addr_cont); +} + +#ifdef CONFIG_UGETH_FILTERING +static int hw_add_addr_in_paddr(ucc_geth_private_t *ugeth, + enet_addr_t *p_enet_addr, u8 paddr_num) +{ + ucc_geth_82xx_address_filtering_pram_t *p_82xx_addr_filt; + + if (!(paddr_num < NUM_OF_PADDRS)) { + ugeth_warn("%s: Illagel paddr_num.", __FUNCTION__); + return -EINVAL; + } + + p_82xx_addr_filt = + (ucc_geth_82xx_address_filtering_pram_t *) ugeth->p_rx_glbl_pram-> + addressfiltering; + + /* Ethernet frames are defined in Little Endian mode, */ + /* therefore to insert the address we reverse the bytes. */ + out_be16(&p_82xx_addr_filt->paddr[paddr_num].h, + (u16) (((u16) (((u16) ((*p_enet_addr)[5])) << 8)) | + (u16) (*p_enet_addr)[4])); + out_be16(&p_82xx_addr_filt->paddr[paddr_num].m, + (u16) (((u16) (((u16) ((*p_enet_addr)[3])) << 8)) | + (u16) (*p_enet_addr)[2])); + out_be16(&p_82xx_addr_filt->paddr[paddr_num].l, + (u16) (((u16) (((u16) ((*p_enet_addr)[1])) << 8)) | + (u16) (*p_enet_addr)[0])); + + return 0; +} +#endif /* CONFIG_UGETH_FILTERING */ + +static int hw_clear_addr_in_paddr(ucc_geth_private_t *ugeth, u8 paddr_num) +{ + ucc_geth_82xx_address_filtering_pram_t *p_82xx_addr_filt; + + if (!(paddr_num < NUM_OF_PADDRS)) { + ugeth_warn("%s: Illagel paddr_num.", __FUNCTION__); + return -EINVAL; + } + + p_82xx_addr_filt = + (ucc_geth_82xx_address_filtering_pram_t *) ugeth->p_rx_glbl_pram-> + addressfiltering; + + /* Writing address ff.ff.ff.ff.ff.ff disables address + recognition for this register */ + out_be16(&p_82xx_addr_filt->paddr[paddr_num].h, 0xffff); + out_be16(&p_82xx_addr_filt->paddr[paddr_num].m, 0xffff); + out_be16(&p_82xx_addr_filt->paddr[paddr_num].l, 0xffff); + + return 0; +} + +static void hw_add_addr_in_hash(ucc_geth_private_t *ugeth, + enet_addr_t *p_enet_addr) +{ + ucc_geth_82xx_address_filtering_pram_t *p_82xx_addr_filt; + u32 cecr_subblock; + + p_82xx_addr_filt = + (ucc_geth_82xx_address_filtering_pram_t *) ugeth->p_rx_glbl_pram-> + addressfiltering; + + cecr_subblock = + ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num); + + /* Ethernet frames are defined in Little Endian mode, + therefor to insert */ + /* the address to the hash (Big Endian mode), we reverse the bytes.*/ + out_be16(&p_82xx_addr_filt->taddr.h, + (u16) (((u16) (((u16) ((*p_enet_addr)[5])) << 8)) | + (u16) (*p_enet_addr)[4])); + out_be16(&p_82xx_addr_filt->taddr.m, + (u16) (((u16) (((u16) ((*p_enet_addr)[3])) << 8)) | + (u16) (*p_enet_addr)[2])); + out_be16(&p_82xx_addr_filt->taddr.l, + (u16) (((u16) (((u16) ((*p_enet_addr)[1])) << 8)) | + (u16) (*p_enet_addr)[0])); + + qe_issue_cmd(QE_SET_GROUP_ADDRESS, cecr_subblock, + (u8) QE_CR_PROTOCOL_ETHERNET, 0); +} + +#ifdef CONFIG_UGETH_MAGIC_PACKET +static void magic_packet_detection_enable(ucc_geth_private_t *ugeth) +{ + ucc_fast_private_t *uccf; + ucc_geth_t *ug_regs; + u32 maccfg2, uccm; + + uccf = ugeth->uccf; + ug_regs = ugeth->ug_regs; + + /* Enable interrupts for magic packet detection */ + uccm = in_be32(uccf->p_uccm); + uccm |= UCCE_MPD; + out_be32(uccf->p_uccm, uccm); + + /* Enable magic packet detection */ + maccfg2 = in_be32(&ug_regs->maccfg2); + maccfg2 |= MACCFG2_MPE; + out_be32(&ug_regs->maccfg2, maccfg2); +} + +static void magic_packet_detection_disable(ucc_geth_private_t *ugeth) +{ + ucc_fast_private_t *uccf; + ucc_geth_t *ug_regs; + u32 maccfg2, uccm; + + uccf = ugeth->uccf; + ug_regs = ugeth->ug_regs; + + /* Disable interrupts for magic packet detection */ + uccm = in_be32(uccf->p_uccm); + uccm &= ~UCCE_MPD; + out_be32(uccf->p_uccm, uccm); + + /* Disable magic packet detection */ + maccfg2 = in_be32(&ug_regs->maccfg2); + maccfg2 &= ~MACCFG2_MPE; + out_be32(&ug_regs->maccfg2, maccfg2); +} +#endif /* MAGIC_PACKET */ + +static inline int compare_addr(enet_addr_t *addr1, enet_addr_t *addr2) +{ + return memcmp(addr1, addr2, ENET_NUM_OCTETS_PER_ADDRESS); +} + +#ifdef DEBUG +static void get_statistics(ucc_geth_private_t *ugeth, + ucc_geth_tx_firmware_statistics_t * + tx_firmware_statistics, + ucc_geth_rx_firmware_statistics_t * + rx_firmware_statistics, + ucc_geth_hardware_statistics_t *hardware_statistics) +{ + ucc_fast_t *uf_regs; + ucc_geth_t *ug_regs; + ucc_geth_tx_firmware_statistics_pram_t *p_tx_fw_statistics_pram; + ucc_geth_rx_firmware_statistics_pram_t *p_rx_fw_statistics_pram; + + ug_regs = ugeth->ug_regs; + uf_regs = (ucc_fast_t *) ug_regs; + p_tx_fw_statistics_pram = ugeth->p_tx_fw_statistics_pram; + p_rx_fw_statistics_pram = ugeth->p_rx_fw_statistics_pram; + + /* Tx firmware only if user handed pointer and driver actually + gathers Tx firmware statistics */ + if (tx_firmware_statistics && p_tx_fw_statistics_pram) { + tx_firmware_statistics->sicoltx = + in_be32(&p_tx_fw_statistics_pram->sicoltx); + tx_firmware_statistics->mulcoltx = + in_be32(&p_tx_fw_statistics_pram->mulcoltx); + tx_firmware_statistics->latecoltxfr = + in_be32(&p_tx_fw_statistics_pram->latecoltxfr); + tx_firmware_statistics->frabortduecol = + in_be32(&p_tx_fw_statistics_pram->frabortduecol); + tx_firmware_statistics->frlostinmactxer = + in_be32(&p_tx_fw_statistics_pram->frlostinmactxer); + tx_firmware_statistics->carriersenseertx = + in_be32(&p_tx_fw_statistics_pram->carriersenseertx); + tx_firmware_statistics->frtxok = + in_be32(&p_tx_fw_statistics_pram->frtxok); + tx_firmware_statistics->txfrexcessivedefer = + in_be32(&p_tx_fw_statistics_pram->txfrexcessivedefer); + tx_firmware_statistics->txpkts256 = + in_be32(&p_tx_fw_statistics_pram->txpkts256); + tx_firmware_statistics->txpkts512 = + in_be32(&p_tx_fw_statistics_pram->txpkts512); + tx_firmware_statistics->txpkts1024 = + in_be32(&p_tx_fw_statistics_pram->txpkts1024); + tx_firmware_statistics->txpktsjumbo = + in_be32(&p_tx_fw_statistics_pram->txpktsjumbo); + } + + /* Rx firmware only if user handed pointer and driver actually + * gathers Rx firmware statistics */ + if (rx_firmware_statistics && p_rx_fw_statistics_pram) { + int i; + rx_firmware_statistics->frrxfcser = + in_be32(&p_rx_fw_statistics_pram->frrxfcser); + rx_firmware_statistics->fraligner = + in_be32(&p_rx_fw_statistics_pram->fraligner); + rx_firmware_statistics->inrangelenrxer = + in_be32(&p_rx_fw_statistics_pram->inrangelenrxer); + rx_firmware_statistics->outrangelenrxer = + in_be32(&p_rx_fw_statistics_pram->outrangelenrxer); + rx_firmware_statistics->frtoolong = + in_be32(&p_rx_fw_statistics_pram->frtoolong); + rx_firmware_statistics->runt = + in_be32(&p_rx_fw_statistics_pram->runt); + rx_firmware_statistics->verylongevent = + in_be32(&p_rx_fw_statistics_pram->verylongevent); + rx_firmware_statistics->symbolerror = + in_be32(&p_rx_fw_statistics_pram->symbolerror); + rx_firmware_statistics->dropbsy = + in_be32(&p_rx_fw_statistics_pram->dropbsy); + for (i = 0; i < 0x8; i++) + rx_firmware_statistics->res0[i] = + p_rx_fw_statistics_pram->res0[i]; + rx_firmware_statistics->mismatchdrop = + in_be32(&p_rx_fw_statistics_pram->mismatchdrop); + rx_firmware_statistics->underpkts = + in_be32(&p_rx_fw_statistics_pram->underpkts); + rx_firmware_statistics->pkts256 = + in_be32(&p_rx_fw_statistics_pram->pkts256); + rx_firmware_statistics->pkts512 = + in_be32(&p_rx_fw_statistics_pram->pkts512); + rx_firmware_statistics->pkts1024 = + in_be32(&p_rx_fw_statistics_pram->pkts1024); + rx_firmware_statistics->pktsjumbo = + in_be32(&p_rx_fw_statistics_pram->pktsjumbo); + rx_firmware_statistics->frlossinmacer = + in_be32(&p_rx_fw_statistics_pram->frlossinmacer); + rx_firmware_statistics->pausefr = + in_be32(&p_rx_fw_statistics_pram->pausefr); + for (i = 0; i < 0x4; i++) + rx_firmware_statistics->res1[i] = + p_rx_fw_statistics_pram->res1[i]; + rx_firmware_statistics->removevlan = + in_be32(&p_rx_fw_statistics_pram->removevlan); + rx_firmware_statistics->replacevlan = + in_be32(&p_rx_fw_statistics_pram->replacevlan); + rx_firmware_statistics->insertvlan = + in_be32(&p_rx_fw_statistics_pram->insertvlan); + } + + /* Hardware only if user handed pointer and driver actually + gathers hardware statistics */ + if (hardware_statistics && (in_be32(&uf_regs->upsmr) & UPSMR_HSE)) { + hardware_statistics->tx64 = in_be32(&ug_regs->tx64); + hardware_statistics->tx127 = in_be32(&ug_regs->tx127); + hardware_statistics->tx255 = in_be32(&ug_regs->tx255); + hardware_statistics->rx64 = in_be32(&ug_regs->rx64); + hardware_statistics->rx127 = in_be32(&ug_regs->rx127); + hardware_statistics->rx255 = in_be32(&ug_regs->rx255); + hardware_statistics->txok = in_be32(&ug_regs->txok); + hardware_statistics->txcf = in_be16(&ug_regs->txcf); + hardware_statistics->tmca = in_be32(&ug_regs->tmca); + hardware_statistics->tbca = in_be32(&ug_regs->tbca); + hardware_statistics->rxfok = in_be32(&ug_regs->rxfok); + hardware_statistics->rxbok = in_be32(&ug_regs->rxbok); + hardware_statistics->rbyt = in_be32(&ug_regs->rbyt); + hardware_statistics->rmca = in_be32(&ug_regs->rmca); + hardware_statistics->rbca = in_be32(&ug_regs->rbca); + } +} + +static void dump_bds(ucc_geth_private_t *ugeth) +{ + int i; + int length; + + for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) { + if (ugeth->p_tx_bd_ring[i]) { + length = + (ugeth->ug_info->bdRingLenTx[i] * + UCC_GETH_SIZE_OF_BD); + ugeth_info("TX BDs[%d]", i); + mem_disp(ugeth->p_tx_bd_ring[i], length); + } + } + for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) { + if (ugeth->p_rx_bd_ring[i]) { + length = + (ugeth->ug_info->bdRingLenRx[i] * + UCC_GETH_SIZE_OF_BD); + ugeth_info("RX BDs[%d]", i); + mem_disp(ugeth->p_rx_bd_ring[i], length); + } + } +} + +static void dump_regs(ucc_geth_private_t *ugeth) +{ + int i; + + ugeth_info("UCC%d Geth registers:", ugeth->ug_info->uf_info.ucc_num); + ugeth_info("Base address: 0x%08x", (u32) ugeth->ug_regs); + + ugeth_info("maccfg1 : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->ug_regs->maccfg1, + in_be32(&ugeth->ug_regs->maccfg1)); + ugeth_info("maccfg2 : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->ug_regs->maccfg2, + in_be32(&ugeth->ug_regs->maccfg2)); + ugeth_info("ipgifg : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->ug_regs->ipgifg, + in_be32(&ugeth->ug_regs->ipgifg)); + ugeth_info("hafdup : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->ug_regs->hafdup, + in_be32(&ugeth->ug_regs->hafdup)); + ugeth_info("miimcfg : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->ug_regs->miimng.miimcfg, + in_be32(&ugeth->ug_regs->miimng.miimcfg)); + ugeth_info("miimcom : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->ug_regs->miimng.miimcom, + in_be32(&ugeth->ug_regs->miimng.miimcom)); + ugeth_info("miimadd : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->ug_regs->miimng.miimadd, + in_be32(&ugeth->ug_regs->miimng.miimadd)); + ugeth_info("miimcon : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->ug_regs->miimng.miimcon, + in_be32(&ugeth->ug_regs->miimng.miimcon)); + ugeth_info("miimstat : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->ug_regs->miimng.miimstat, + in_be32(&ugeth->ug_regs->miimng.miimstat)); + ugeth_info("miimmind : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->ug_regs->miimng.miimind, + in_be32(&ugeth->ug_regs->miimng.miimind)); + ugeth_info("ifctl : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->ug_regs->ifctl, + in_be32(&ugeth->ug_regs->ifctl)); + ugeth_info("ifstat : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->ug_regs->ifstat, + in_be32(&ugeth->ug_regs->ifstat)); + ugeth_info("macstnaddr1: addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->ug_regs->macstnaddr1, + in_be32(&ugeth->ug_regs->macstnaddr1)); + ugeth_info("macstnaddr2: addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->ug_regs->macstnaddr2, + in_be32(&ugeth->ug_regs->macstnaddr2)); + ugeth_info("uempr : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->ug_regs->uempr, + in_be32(&ugeth->ug_regs->uempr)); + ugeth_info("utbipar : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->ug_regs->utbipar, + in_be32(&ugeth->ug_regs->utbipar)); + ugeth_info("uescr : addr - 0x%08x, val - 0x%04x", + (u32) & ugeth->ug_regs->uescr, + in_be16(&ugeth->ug_regs->uescr)); + ugeth_info("tx64 : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->ug_regs->tx64, + in_be32(&ugeth->ug_regs->tx64)); + ugeth_info("tx127 : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->ug_regs->tx127, + in_be32(&ugeth->ug_regs->tx127)); + ugeth_info("tx255 : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->ug_regs->tx255, + in_be32(&ugeth->ug_regs->tx255)); + ugeth_info("rx64 : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->ug_regs->rx64, + in_be32(&ugeth->ug_regs->rx64)); + ugeth_info("rx127 : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->ug_regs->rx127, + in_be32(&ugeth->ug_regs->rx127)); + ugeth_info("rx255 : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->ug_regs->rx255, + in_be32(&ugeth->ug_regs->rx255)); + ugeth_info("txok : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->ug_regs->txok, + in_be32(&ugeth->ug_regs->txok)); + ugeth_info("txcf : addr - 0x%08x, val - 0x%04x", + (u32) & ugeth->ug_regs->txcf, + in_be16(&ugeth->ug_regs->txcf)); + ugeth_info("tmca : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->ug_regs->tmca, + in_be32(&ugeth->ug_regs->tmca)); + ugeth_info("tbca : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->ug_regs->tbca, + in_be32(&ugeth->ug_regs->tbca)); + ugeth_info("rxfok : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->ug_regs->rxfok, + in_be32(&ugeth->ug_regs->rxfok)); + ugeth_info("rxbok : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->ug_regs->rxbok, + in_be32(&ugeth->ug_regs->rxbok)); + ugeth_info("rbyt : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->ug_regs->rbyt, + in_be32(&ugeth->ug_regs->rbyt)); + ugeth_info("rmca : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->ug_regs->rmca, + in_be32(&ugeth->ug_regs->rmca)); + ugeth_info("rbca : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->ug_regs->rbca, + in_be32(&ugeth->ug_regs->rbca)); + ugeth_info("scar : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->ug_regs->scar, + in_be32(&ugeth->ug_regs->scar)); + ugeth_info("scam : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->ug_regs->scam, + in_be32(&ugeth->ug_regs->scam)); + + if (ugeth->p_thread_data_tx) { + int numThreadsTxNumerical; + switch (ugeth->ug_info->numThreadsTx) { + case UCC_GETH_NUM_OF_THREADS_1: + numThreadsTxNumerical = 1; + break; + case UCC_GETH_NUM_OF_THREADS_2: + numThreadsTxNumerical = 2; + break; + case UCC_GETH_NUM_OF_THREADS_4: + numThreadsTxNumerical = 4; + break; + case UCC_GETH_NUM_OF_THREADS_6: + numThreadsTxNumerical = 6; + break; + case UCC_GETH_NUM_OF_THREADS_8: + numThreadsTxNumerical = 8; + break; + default: + numThreadsTxNumerical = 0; + break; + } + + ugeth_info("Thread data TXs:"); + ugeth_info("Base address: 0x%08x", + (u32) ugeth->p_thread_data_tx); + for (i = 0; i < numThreadsTxNumerical; i++) { + ugeth_info("Thread data TX[%d]:", i); + ugeth_info("Base address: 0x%08x", + (u32) & ugeth->p_thread_data_tx[i]); + mem_disp((u8 *) & ugeth->p_thread_data_tx[i], + sizeof(ucc_geth_thread_data_tx_t)); + } + } + if (ugeth->p_thread_data_rx) { + int numThreadsRxNumerical; + switch (ugeth->ug_info->numThreadsRx) { + case UCC_GETH_NUM_OF_THREADS_1: + numThreadsRxNumerical = 1; + break; + case UCC_GETH_NUM_OF_THREADS_2: + numThreadsRxNumerical = 2; + break; + case UCC_GETH_NUM_OF_THREADS_4: + numThreadsRxNumerical = 4; + break; + case UCC_GETH_NUM_OF_THREADS_6: + numThreadsRxNumerical = 6; + break; + case UCC_GETH_NUM_OF_THREADS_8: + numThreadsRxNumerical = 8; + break; + default: + numThreadsRxNumerical = 0; + break; + } + + ugeth_info("Thread data RX:"); + ugeth_info("Base address: 0x%08x", + (u32) ugeth->p_thread_data_rx); + for (i = 0; i < numThreadsRxNumerical; i++) { + ugeth_info("Thread data RX[%d]:", i); + ugeth_info("Base address: 0x%08x", + (u32) & ugeth->p_thread_data_rx[i]); + mem_disp((u8 *) & ugeth->p_thread_data_rx[i], + sizeof(ucc_geth_thread_data_rx_t)); + } + } + if (ugeth->p_exf_glbl_param) { + ugeth_info("EXF global param:"); + ugeth_info("Base address: 0x%08x", + (u32) ugeth->p_exf_glbl_param); + mem_disp((u8 *) ugeth->p_exf_glbl_param, + sizeof(*ugeth->p_exf_glbl_param)); + } + if (ugeth->p_tx_glbl_pram) { + ugeth_info("TX global param:"); + ugeth_info("Base address: 0x%08x", (u32) ugeth->p_tx_glbl_pram); + ugeth_info("temoder : addr - 0x%08x, val - 0x%04x", + (u32) & ugeth->p_tx_glbl_pram->temoder, + in_be16(&ugeth->p_tx_glbl_pram->temoder)); + ugeth_info("sqptr : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->p_tx_glbl_pram->sqptr, + in_be32(&ugeth->p_tx_glbl_pram->sqptr)); + ugeth_info("schedulerbasepointer: addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->p_tx_glbl_pram->schedulerbasepointer, + in_be32(&ugeth->p_tx_glbl_pram-> + schedulerbasepointer)); + ugeth_info("txrmonbaseptr: addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->p_tx_glbl_pram->txrmonbaseptr, + in_be32(&ugeth->p_tx_glbl_pram->txrmonbaseptr)); + ugeth_info("tstate : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->p_tx_glbl_pram->tstate, + in_be32(&ugeth->p_tx_glbl_pram->tstate)); + ugeth_info("iphoffset[0] : addr - 0x%08x, val - 0x%02x", + (u32) & ugeth->p_tx_glbl_pram->iphoffset[0], + ugeth->p_tx_glbl_pram->iphoffset[0]); + ugeth_info("iphoffset[1] : addr - 0x%08x, val - 0x%02x", + (u32) & ugeth->p_tx_glbl_pram->iphoffset[1], + ugeth->p_tx_glbl_pram->iphoffset[1]); + ugeth_info("iphoffset[2] : addr - 0x%08x, val - 0x%02x", + (u32) & ugeth->p_tx_glbl_pram->iphoffset[2], + ugeth->p_tx_glbl_pram->iphoffset[2]); + ugeth_info("iphoffset[3] : addr - 0x%08x, val - 0x%02x", + (u32) & ugeth->p_tx_glbl_pram->iphoffset[3], + ugeth->p_tx_glbl_pram->iphoffset[3]); + ugeth_info("iphoffset[4] : addr - 0x%08x, val - 0x%02x", + (u32) & ugeth->p_tx_glbl_pram->iphoffset[4], + ugeth->p_tx_glbl_pram->iphoffset[4]); + ugeth_info("iphoffset[5] : addr - 0x%08x, val - 0x%02x", + (u32) & ugeth->p_tx_glbl_pram->iphoffset[5], + ugeth->p_tx_glbl_pram->iphoffset[5]); + ugeth_info("iphoffset[6] : addr - 0x%08x, val - 0x%02x", + (u32) & ugeth->p_tx_glbl_pram->iphoffset[6], + ugeth->p_tx_glbl_pram->iphoffset[6]); + ugeth_info("iphoffset[7] : addr - 0x%08x, val - 0x%02x", + (u32) & ugeth->p_tx_glbl_pram->iphoffset[7], + ugeth->p_tx_glbl_pram->iphoffset[7]); + ugeth_info("vtagtable[0] : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->p_tx_glbl_pram->vtagtable[0], + in_be32(&ugeth->p_tx_glbl_pram->vtagtable[0])); + ugeth_info("vtagtable[1] : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->p_tx_glbl_pram->vtagtable[1], + in_be32(&ugeth->p_tx_glbl_pram->vtagtable[1])); + ugeth_info("vtagtable[2] : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->p_tx_glbl_pram->vtagtable[2], + in_be32(&ugeth->p_tx_glbl_pram->vtagtable[2])); + ugeth_info("vtagtable[3] : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->p_tx_glbl_pram->vtagtable[3], + in_be32(&ugeth->p_tx_glbl_pram->vtagtable[3])); + ugeth_info("vtagtable[4] : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->p_tx_glbl_pram->vtagtable[4], + in_be32(&ugeth->p_tx_glbl_pram->vtagtable[4])); + ugeth_info("vtagtable[5] : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->p_tx_glbl_pram->vtagtable[5], + in_be32(&ugeth->p_tx_glbl_pram->vtagtable[5])); + ugeth_info("vtagtable[6] : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->p_tx_glbl_pram->vtagtable[6], + in_be32(&ugeth->p_tx_glbl_pram->vtagtable[6])); + ugeth_info("vtagtable[7] : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->p_tx_glbl_pram->vtagtable[7], + in_be32(&ugeth->p_tx_glbl_pram->vtagtable[7])); + ugeth_info("tqptr : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->p_tx_glbl_pram->tqptr, + in_be32(&ugeth->p_tx_glbl_pram->tqptr)); + } + if (ugeth->p_rx_glbl_pram) { + ugeth_info("RX global param:"); + ugeth_info("Base address: 0x%08x", (u32) ugeth->p_rx_glbl_pram); + ugeth_info("remoder : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->p_rx_glbl_pram->remoder, + in_be32(&ugeth->p_rx_glbl_pram->remoder)); + ugeth_info("rqptr : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->p_rx_glbl_pram->rqptr, + in_be32(&ugeth->p_rx_glbl_pram->rqptr)); + ugeth_info("typeorlen : addr - 0x%08x, val - 0x%04x", + (u32) & ugeth->p_rx_glbl_pram->typeorlen, + in_be16(&ugeth->p_rx_glbl_pram->typeorlen)); + ugeth_info("rxgstpack : addr - 0x%08x, val - 0x%02x", + (u32) & ugeth->p_rx_glbl_pram->rxgstpack, + ugeth->p_rx_glbl_pram->rxgstpack); + ugeth_info("rxrmonbaseptr : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->p_rx_glbl_pram->rxrmonbaseptr, + in_be32(&ugeth->p_rx_glbl_pram->rxrmonbaseptr)); + ugeth_info("intcoalescingptr: addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->p_rx_glbl_pram->intcoalescingptr, + in_be32(&ugeth->p_rx_glbl_pram->intcoalescingptr)); + ugeth_info("rstate : addr - 0x%08x, val - 0x%02x", + (u32) & ugeth->p_rx_glbl_pram->rstate, + ugeth->p_rx_glbl_pram->rstate); + ugeth_info("mrblr : addr - 0x%08x, val - 0x%04x", + (u32) & ugeth->p_rx_glbl_pram->mrblr, + in_be16(&ugeth->p_rx_glbl_pram->mrblr)); + ugeth_info("rbdqptr : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->p_rx_glbl_pram->rbdqptr, + in_be32(&ugeth->p_rx_glbl_pram->rbdqptr)); + ugeth_info("mflr : addr - 0x%08x, val - 0x%04x", + (u32) & ugeth->p_rx_glbl_pram->mflr, + in_be16(&ugeth->p_rx_glbl_pram->mflr)); + ugeth_info("minflr : addr - 0x%08x, val - 0x%04x", + (u32) & ugeth->p_rx_glbl_pram->minflr, + in_be16(&ugeth->p_rx_glbl_pram->minflr)); + ugeth_info("maxd1 : addr - 0x%08x, val - 0x%04x", + (u32) & ugeth->p_rx_glbl_pram->maxd1, + in_be16(&ugeth->p_rx_glbl_pram->maxd1)); + ugeth_info("maxd2 : addr - 0x%08x, val - 0x%04x", + (u32) & ugeth->p_rx_glbl_pram->maxd2, + in_be16(&ugeth->p_rx_glbl_pram->maxd2)); + ugeth_info("ecamptr : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->p_rx_glbl_pram->ecamptr, + in_be32(&ugeth->p_rx_glbl_pram->ecamptr)); + ugeth_info("l2qt : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->p_rx_glbl_pram->l2qt, + in_be32(&ugeth->p_rx_glbl_pram->l2qt)); + ugeth_info("l3qt[0] : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->p_rx_glbl_pram->l3qt[0], + in_be32(&ugeth->p_rx_glbl_pram->l3qt[0])); + ugeth_info("l3qt[1] : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->p_rx_glbl_pram->l3qt[1], + in_be32(&ugeth->p_rx_glbl_pram->l3qt[1])); + ugeth_info("l3qt[2] : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->p_rx_glbl_pram->l3qt[2], + in_be32(&ugeth->p_rx_glbl_pram->l3qt[2])); + ugeth_info("l3qt[3] : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->p_rx_glbl_pram->l3qt[3], + in_be32(&ugeth->p_rx_glbl_pram->l3qt[3])); + ugeth_info("l3qt[4] : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->p_rx_glbl_pram->l3qt[4], + in_be32(&ugeth->p_rx_glbl_pram->l3qt[4])); + ugeth_info("l3qt[5] : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->p_rx_glbl_pram->l3qt[5], + in_be32(&ugeth->p_rx_glbl_pram->l3qt[5])); + ugeth_info("l3qt[6] : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->p_rx_glbl_pram->l3qt[6], + in_be32(&ugeth->p_rx_glbl_pram->l3qt[6])); + ugeth_info("l3qt[7] : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->p_rx_glbl_pram->l3qt[7], + in_be32(&ugeth->p_rx_glbl_pram->l3qt[7])); + ugeth_info("vlantype : addr - 0x%08x, val - 0x%04x", + (u32) & ugeth->p_rx_glbl_pram->vlantype, + in_be16(&ugeth->p_rx_glbl_pram->vlantype)); + ugeth_info("vlantci : addr - 0x%08x, val - 0x%04x", + (u32) & ugeth->p_rx_glbl_pram->vlantci, + in_be16(&ugeth->p_rx_glbl_pram->vlantci)); + for (i = 0; i < 64; i++) + ugeth_info + ("addressfiltering[%d]: addr - 0x%08x, val - 0x%02x", + i, + (u32) & ugeth->p_rx_glbl_pram->addressfiltering[i], + ugeth->p_rx_glbl_pram->addressfiltering[i]); + ugeth_info("exfGlobalParam : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->p_rx_glbl_pram->exfGlobalParam, + in_be32(&ugeth->p_rx_glbl_pram->exfGlobalParam)); + } + if (ugeth->p_send_q_mem_reg) { + ugeth_info("Send Q memory registers:"); + ugeth_info("Base address: 0x%08x", + (u32) ugeth->p_send_q_mem_reg); + for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) { + ugeth_info("SQQD[%d]:", i); + ugeth_info("Base address: 0x%08x", + (u32) & ugeth->p_send_q_mem_reg->sqqd[i]); + mem_disp((u8 *) & ugeth->p_send_q_mem_reg->sqqd[i], + sizeof(ucc_geth_send_queue_qd_t)); + } + } + if (ugeth->p_scheduler) { + ugeth_info("Scheduler:"); + ugeth_info("Base address: 0x%08x", (u32) ugeth->p_scheduler); + mem_disp((u8 *) ugeth->p_scheduler, + sizeof(*ugeth->p_scheduler)); + } + if (ugeth->p_tx_fw_statistics_pram) { + ugeth_info("TX FW statistics pram:"); + ugeth_info("Base address: 0x%08x", + (u32) ugeth->p_tx_fw_statistics_pram); + mem_disp((u8 *) ugeth->p_tx_fw_statistics_pram, + sizeof(*ugeth->p_tx_fw_statistics_pram)); + } + if (ugeth->p_rx_fw_statistics_pram) { + ugeth_info("RX FW statistics pram:"); + ugeth_info("Base address: 0x%08x", + (u32) ugeth->p_rx_fw_statistics_pram); + mem_disp((u8 *) ugeth->p_rx_fw_statistics_pram, + sizeof(*ugeth->p_rx_fw_statistics_pram)); + } + if (ugeth->p_rx_irq_coalescing_tbl) { + ugeth_info("RX IRQ coalescing tables:"); + ugeth_info("Base address: 0x%08x", + (u32) ugeth->p_rx_irq_coalescing_tbl); + for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) { + ugeth_info("RX IRQ coalescing table entry[%d]:", i); + ugeth_info("Base address: 0x%08x", + (u32) & ugeth->p_rx_irq_coalescing_tbl-> + coalescingentry[i]); + ugeth_info + ("interruptcoalescingmaxvalue: addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->p_rx_irq_coalescing_tbl-> + coalescingentry[i].interruptcoalescingmaxvalue, + in_be32(&ugeth->p_rx_irq_coalescing_tbl-> + coalescingentry[i]. + interruptcoalescingmaxvalue)); + ugeth_info + ("interruptcoalescingcounter : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->p_rx_irq_coalescing_tbl-> + coalescingentry[i].interruptcoalescingcounter, + in_be32(&ugeth->p_rx_irq_coalescing_tbl-> + coalescingentry[i]. + interruptcoalescingcounter)); + } + } + if (ugeth->p_rx_bd_qs_tbl) { + ugeth_info("RX BD QS tables:"); + ugeth_info("Base address: 0x%08x", (u32) ugeth->p_rx_bd_qs_tbl); + for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) { + ugeth_info("RX BD QS table[%d]:", i); + ugeth_info("Base address: 0x%08x", + (u32) & ugeth->p_rx_bd_qs_tbl[i]); + ugeth_info + ("bdbaseptr : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->p_rx_bd_qs_tbl[i].bdbaseptr, + in_be32(&ugeth->p_rx_bd_qs_tbl[i].bdbaseptr)); + ugeth_info + ("bdptr : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->p_rx_bd_qs_tbl[i].bdptr, + in_be32(&ugeth->p_rx_bd_qs_tbl[i].bdptr)); + ugeth_info + ("externalbdbaseptr: addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr, + in_be32(&ugeth->p_rx_bd_qs_tbl[i]. + externalbdbaseptr)); + ugeth_info + ("externalbdptr : addr - 0x%08x, val - 0x%08x", + (u32) & ugeth->p_rx_bd_qs_tbl[i].externalbdptr, + in_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdptr)); + ugeth_info("ucode RX Prefetched BDs:"); + ugeth_info("Base address: 0x%08x", + (u32) + qe_muram_addr(in_be32 + (&ugeth->p_rx_bd_qs_tbl[i]. + bdbaseptr))); + mem_disp((u8 *) + qe_muram_addr(in_be32 + (&ugeth->p_rx_bd_qs_tbl[i]. + bdbaseptr)), + sizeof(ucc_geth_rx_prefetched_bds_t)); + } + } + if (ugeth->p_init_enet_param_shadow) { + int size; + ugeth_info("Init enet param shadow:"); + ugeth_info("Base address: 0x%08x", + (u32) ugeth->p_init_enet_param_shadow); + mem_disp((u8 *) ugeth->p_init_enet_param_shadow, + sizeof(*ugeth->p_init_enet_param_shadow)); + + size = sizeof(ucc_geth_thread_rx_pram_t); + if (ugeth->ug_info->rxExtendedFiltering) { + size += + THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING; + if (ugeth->ug_info->largestexternallookupkeysize == + QE_FLTR_TABLE_LOOKUP_KEY_SIZE_8_BYTES) + size += + THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_8; + if (ugeth->ug_info->largestexternallookupkeysize == + QE_FLTR_TABLE_LOOKUP_KEY_SIZE_16_BYTES) + size += + THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_16; + } + + dump_init_enet_entries(ugeth, + &(ugeth->p_init_enet_param_shadow-> + txthread[0]), + ENET_INIT_PARAM_MAX_ENTRIES_TX, + sizeof(ucc_geth_thread_tx_pram_t), + ugeth->ug_info->riscTx, 0); + dump_init_enet_entries(ugeth, + &(ugeth->p_init_enet_param_shadow-> + rxthread[0]), + ENET_INIT_PARAM_MAX_ENTRIES_RX, size, + ugeth->ug_info->riscRx, 1); + } +} +#endif /* DEBUG */ + +static void init_default_reg_vals(volatile u32 *upsmr_register, + volatile u32 *maccfg1_register, + volatile u32 *maccfg2_register) +{ + out_be32(upsmr_register, UCC_GETH_UPSMR_INIT); + out_be32(maccfg1_register, UCC_GETH_MACCFG1_INIT); + out_be32(maccfg2_register, UCC_GETH_MACCFG2_INIT); +} + +static int init_half_duplex_params(int alt_beb, + int back_pressure_no_backoff, + int no_backoff, + int excess_defer, + u8 alt_beb_truncation, + u8 max_retransmissions, + u8 collision_window, + volatile u32 *hafdup_register) +{ + u32 value = 0; + + if ((alt_beb_truncation > HALFDUP_ALT_BEB_TRUNCATION_MAX) || + (max_retransmissions > HALFDUP_MAX_RETRANSMISSION_MAX) || + (collision_window > HALFDUP_COLLISION_WINDOW_MAX)) + return -EINVAL; + + value = (u32) (alt_beb_truncation << HALFDUP_ALT_BEB_TRUNCATION_SHIFT); + + if (alt_beb) + value |= HALFDUP_ALT_BEB; + if (back_pressure_no_backoff) + value |= HALFDUP_BACK_PRESSURE_NO_BACKOFF; + if (no_backoff) + value |= HALFDUP_NO_BACKOFF; + if (excess_defer) + value |= HALFDUP_EXCESSIVE_DEFER; + + value |= (max_retransmissions << HALFDUP_MAX_RETRANSMISSION_SHIFT); + + value |= collision_window; + + out_be32(hafdup_register, value); + return 0; +} + +static int init_inter_frame_gap_params(u8 non_btb_cs_ipg, + u8 non_btb_ipg, + u8 min_ifg, + u8 btb_ipg, + volatile u32 *ipgifg_register) +{ + u32 value = 0; + + /* Non-Back-to-back IPG part 1 should be <= Non-Back-to-back + IPG part 2 */ + if (non_btb_cs_ipg > non_btb_ipg) + return -EINVAL; + + if ((non_btb_cs_ipg > IPGIFG_NON_BACK_TO_BACK_IFG_PART1_MAX) || + (non_btb_ipg > IPGIFG_NON_BACK_TO_BACK_IFG_PART2_MAX) || + /*(min_ifg > IPGIFG_MINIMUM_IFG_ENFORCEMENT_MAX) || */ + (btb_ipg > IPGIFG_BACK_TO_BACK_IFG_MAX)) + return -EINVAL; + + value |= + ((non_btb_cs_ipg << IPGIFG_NON_BACK_TO_BACK_IFG_PART1_SHIFT) & + IPGIFG_NBTB_CS_IPG_MASK); + value |= + ((non_btb_ipg << IPGIFG_NON_BACK_TO_BACK_IFG_PART2_SHIFT) & + IPGIFG_NBTB_IPG_MASK); + value |= + ((min_ifg << IPGIFG_MINIMUM_IFG_ENFORCEMENT_SHIFT) & + IPGIFG_MIN_IFG_MASK); + value |= (btb_ipg & IPGIFG_BTB_IPG_MASK); + + out_be32(ipgifg_register, value); + return 0; +} + +static int init_flow_control_params(u32 automatic_flow_control_mode, + int rx_flow_control_enable, + int tx_flow_control_enable, + u16 pause_period, + u16 extension_field, + volatile u32 *upsmr_register, + volatile u32 *uempr_register, + volatile u32 *maccfg1_register) +{ + u32 value = 0; + + /* Set UEMPR register */ + value = (u32) pause_period << UEMPR_PAUSE_TIME_VALUE_SHIFT; + value |= (u32) extension_field << UEMPR_EXTENDED_PAUSE_TIME_VALUE_SHIFT; + out_be32(uempr_register, value); + + /* Set UPSMR register */ + value = in_be32(upsmr_register); + value |= automatic_flow_control_mode; + out_be32(upsmr_register, value); + + value = in_be32(maccfg1_register); + if (rx_flow_control_enable) + value |= MACCFG1_FLOW_RX; + if (tx_flow_control_enable) + value |= MACCFG1_FLOW_TX; + out_be32(maccfg1_register, value); + + return 0; +} + +static int init_hw_statistics_gathering_mode(int enable_hardware_statistics, + int auto_zero_hardware_statistics, + volatile u32 *upsmr_register, + volatile u16 *uescr_register) +{ + u32 upsmr_value = 0; + u16 uescr_value = 0; + /* Enable hardware statistics gathering if requested */ + if (enable_hardware_statistics) { + upsmr_value = in_be32(upsmr_register); + upsmr_value |= UPSMR_HSE; + out_be32(upsmr_register, upsmr_value); + } + + /* Clear hardware statistics counters */ + uescr_value = in_be16(uescr_register); + uescr_value |= UESCR_CLRCNT; + /* Automatically zero hardware statistics counters on read, + if requested */ + if (auto_zero_hardware_statistics) + uescr_value |= UESCR_AUTOZ; + out_be16(uescr_register, uescr_value); + + return 0; +} + +static int init_firmware_statistics_gathering_mode(int + enable_tx_firmware_statistics, + int enable_rx_firmware_statistics, + volatile u32 *tx_rmon_base_ptr, + u32 tx_firmware_statistics_structure_address, + volatile u32 *rx_rmon_base_ptr, + u32 rx_firmware_statistics_structure_address, + volatile u16 *temoder_register, + volatile u32 *remoder_register) +{ + /* Note: this function does not check if */ + /* the parameters it receives are NULL */ + u16 temoder_value; + u32 remoder_value; + + if (enable_tx_firmware_statistics) { + out_be32(tx_rmon_base_ptr, + tx_firmware_statistics_structure_address); + temoder_value = in_be16(temoder_register); + temoder_value |= TEMODER_TX_RMON_STATISTICS_ENABLE; + out_be16(temoder_register, temoder_value); + } + + if (enable_rx_firmware_statistics) { + out_be32(rx_rmon_base_ptr, + rx_firmware_statistics_structure_address); + remoder_value = in_be32(remoder_register); + remoder_value |= REMODER_RX_RMON_STATISTICS_ENABLE; + out_be32(remoder_register, remoder_value); + } + + return 0; +} + +static int init_mac_station_addr_regs(u8 address_byte_0, + u8 address_byte_1, + u8 address_byte_2, + u8 address_byte_3, + u8 address_byte_4, + u8 address_byte_5, + volatile u32 *macstnaddr1_register, + volatile u32 *macstnaddr2_register) +{ + u32 value = 0; + + /* Example: for a station address of 0x12345678ABCD, */ + /* 0x12 is byte 0, 0x34 is byte 1 and so on and 0xCD is byte 5 */ + + /* MACSTNADDR1 Register: */ + + /* 0 7 8 15 */ + /* station address byte 5 station address byte 4 */ + /* 16 23 24 31 */ + /* station address byte 3 station address byte 2 */ + value |= (u32) ((address_byte_2 << 0) & 0x000000FF); + value |= (u32) ((address_byte_3 << 8) & 0x0000FF00); + value |= (u32) ((address_byte_4 << 16) & 0x00FF0000); + value |= (u32) ((address_byte_5 << 24) & 0xFF000000); + + out_be32(macstnaddr1_register, value); + + /* MACSTNADDR2 Register: */ + + /* 0 7 8 15 */ + /* station address byte 1 station address byte 0 */ + /* 16 23 24 31 */ + /* reserved reserved */ + value = 0; + value |= (u32) ((address_byte_0 << 16) & 0x00FF0000); + value |= (u32) ((address_byte_1 << 24) & 0xFF000000); + + out_be32(macstnaddr2_register, value); + + return 0; +} + +static int init_mac_duplex_mode(int full_duplex, + int limited_to_full_duplex, + volatile u32 *maccfg2_register) +{ + u32 value = 0; + + /* some interfaces must work in full duplex mode */ + if ((full_duplex == 0) && (limited_to_full_duplex == 1)) + return -EINVAL; + + value = in_be32(maccfg2_register); + + if (full_duplex) + value |= MACCFG2_FDX; + else + value &= ~MACCFG2_FDX; + + out_be32(maccfg2_register, value); + return 0; +} + +static int init_check_frame_length_mode(int length_check, + volatile u32 *maccfg2_register) +{ + u32 value = 0; + + value = in_be32(maccfg2_register); + + if (length_check) + value |= MACCFG2_LC; + else + value &= ~MACCFG2_LC; + + out_be32(maccfg2_register, value); + return 0; +} + +static int init_preamble_length(u8 preamble_length, + volatile u32 *maccfg2_register) +{ + u32 value = 0; + + if ((preamble_length < 3) || (preamble_length > 7)) + return -EINVAL; + + value = in_be32(maccfg2_register); + value &= ~MACCFG2_PREL_MASK; + value |= (preamble_length << MACCFG2_PREL_SHIFT); + out_be32(maccfg2_register, value); + return 0; +} + +static int init_mii_management_configuration(int reset_mgmt, + int preamble_supress, + volatile u32 *miimcfg_register, + volatile u32 *miimind_register) +{ + unsigned int timeout = PHY_INIT_TIMEOUT; + u32 value = 0; + + value = in_be32(miimcfg_register); + if (reset_mgmt) { + value |= MIIMCFG_RESET_MANAGEMENT; + out_be32(miimcfg_register, value); + } + + value = 0; + + if (preamble_supress) + value |= MIIMCFG_NO_PREAMBLE; + + value |= UCC_GETH_MIIMCFG_MNGMNT_CLC_DIV_INIT; + out_be32(miimcfg_register, value); + + /* Wait until the bus is free */ + while ((in_be32(miimind_register) & MIIMIND_BUSY) && timeout--) + cpu_relax(); + + if (timeout <= 0) { + ugeth_err("%s: The MII Bus is stuck!", __FUNCTION__); + return -ETIMEDOUT; + } + + return 0; +} + +static int init_rx_parameters(int reject_broadcast, + int receive_short_frames, + int promiscuous, volatile u32 *upsmr_register) +{ + u32 value = 0; + + value = in_be32(upsmr_register); + + if (reject_broadcast) + value |= UPSMR_BRO; + else + value &= ~UPSMR_BRO; + + if (receive_short_frames) + value |= UPSMR_RSH; + else + value &= ~UPSMR_RSH; + + if (promiscuous) + value |= UPSMR_PRO; + else + value &= ~UPSMR_PRO; + + out_be32(upsmr_register, value); + + return 0; +} + +static int init_max_rx_buff_len(u16 max_rx_buf_len, + volatile u16 *mrblr_register) +{ + /* max_rx_buf_len value must be a multiple of 128 */ + if ((max_rx_buf_len == 0) + || (max_rx_buf_len % UCC_GETH_MRBLR_ALIGNMENT)) + return -EINVAL; + + out_be16(mrblr_register, max_rx_buf_len); + return 0; +} + +static int init_min_frame_len(u16 min_frame_length, + volatile u16 *minflr_register, + volatile u16 *mrblr_register) +{ + u16 mrblr_value = 0; + + mrblr_value = in_be16(mrblr_register); + if (min_frame_length >= (mrblr_value - 4)) + return -EINVAL; + + out_be16(minflr_register, min_frame_length); + return 0; +} + +static int adjust_enet_interface(ucc_geth_private_t *ugeth) +{ + ucc_geth_info_t *ug_info; + ucc_geth_t *ug_regs; + ucc_fast_t *uf_regs; + enet_speed_e speed; + int ret_val, rpm = 0, tbi = 0, r10m = 0, rmm = + 0, limited_to_full_duplex = 0; + u32 upsmr, maccfg2, utbipar, tbiBaseAddress; + u16 value; + + ugeth_vdbg("%s: IN", __FUNCTION__); + + ug_info = ugeth->ug_info; + ug_regs = ugeth->ug_regs; + uf_regs = ugeth->uccf->uf_regs; + + /* Analyze enet_interface according to Interface Mode Configuration + table */ + ret_val = + get_interface_details(ug_info->enet_interface, &speed, &r10m, &rmm, + &rpm, &tbi, &limited_to_full_duplex); + if (ret_val != 0) { + ugeth_err + ("%s: half duplex not supported in requested configuration.", + __FUNCTION__); + return ret_val; + } + + /* Set MACCFG2 */ + maccfg2 = in_be32(&ug_regs->maccfg2); + maccfg2 &= ~MACCFG2_INTERFACE_MODE_MASK; + if ((speed == ENET_SPEED_10BT) || (speed == ENET_SPEED_100BT)) + maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE; + else if (speed == ENET_SPEED_1000BT) + maccfg2 |= MACCFG2_INTERFACE_MODE_BYTE; + maccfg2 |= ug_info->padAndCrc; + out_be32(&ug_regs->maccfg2, maccfg2); + + /* Set UPSMR */ + upsmr = in_be32(&uf_regs->upsmr); + upsmr &= ~(UPSMR_RPM | UPSMR_R10M | UPSMR_TBIM | UPSMR_RMM); + if (rpm) + upsmr |= UPSMR_RPM; + if (r10m) + upsmr |= UPSMR_R10M; + if (tbi) + upsmr |= UPSMR_TBIM; + if (rmm) + upsmr |= UPSMR_RMM; + out_be32(&uf_regs->upsmr, upsmr); + + /* Set UTBIPAR */ + utbipar = in_be32(&ug_regs->utbipar); + utbipar &= ~UTBIPAR_PHY_ADDRESS_MASK; + if (tbi) + utbipar |= + (ug_info->phy_address + + ugeth->ug_info->uf_info. + ucc_num) << UTBIPAR_PHY_ADDRESS_SHIFT; + else + utbipar |= + (0x10 + + ugeth->ug_info->uf_info. + ucc_num) << UTBIPAR_PHY_ADDRESS_SHIFT; + out_be32(&ug_regs->utbipar, utbipar); + + /* Disable autonegotiation in tbi mode, because by default it + comes up in autonegotiation mode. */ + /* Note that this depends on proper setting in utbipar register. */ + if (tbi) { + tbiBaseAddress = in_be32(&ug_regs->utbipar); + tbiBaseAddress &= UTBIPAR_PHY_ADDRESS_MASK; + tbiBaseAddress >>= UTBIPAR_PHY_ADDRESS_SHIFT; + value = + ugeth->mii_info->mdio_read(ugeth->dev, (u8) tbiBaseAddress, + ENET_TBI_MII_CR); + value &= ~0x1000; /* Turn off autonegotiation */ + ugeth->mii_info->mdio_write(ugeth->dev, (u8) tbiBaseAddress, + ENET_TBI_MII_CR, value); + } + + ret_val = init_mac_duplex_mode(1, + limited_to_full_duplex, + &ug_regs->maccfg2); + if (ret_val != 0) { + ugeth_err + ("%s: half duplex not supported in requested configuration.", + __FUNCTION__); + return ret_val; + } + + init_check_frame_length_mode(ug_info->lengthCheckRx, &ug_regs->maccfg2); + + ret_val = init_preamble_length(ug_info->prel, &ug_regs->maccfg2); + if (ret_val != 0) { + ugeth_err + ("%s: Preamble length must be between 3 and 7 inclusive.", + __FUNCTION__); + return ret_val; + } + + return 0; +} + +/* Called every time the controller might need to be made + * aware of new link state. The PHY code conveys this + * information through variables in the ugeth structure, and this + * function converts those variables into the appropriate + * register values, and can bring down the device if needed. + */ +static void adjust_link(struct net_device *dev) +{ + ucc_geth_private_t *ugeth = netdev_priv(dev); + ucc_geth_t *ug_regs; + u32 tempval; + struct ugeth_mii_info *mii_info = ugeth->mii_info; + + ug_regs = ugeth->ug_regs; + + if (mii_info->link) { + /* Now we make sure that we can be in full duplex mode. + * If not, we operate in half-duplex mode. */ + if (mii_info->duplex != ugeth->oldduplex) { + if (!(mii_info->duplex)) { + tempval = in_be32(&ug_regs->maccfg2); + tempval &= ~(MACCFG2_FDX); + out_be32(&ug_regs->maccfg2, tempval); + + ugeth_info("%s: Half Duplex", dev->name); + } else { + tempval = in_be32(&ug_regs->maccfg2); + tempval |= MACCFG2_FDX; + out_be32(&ug_regs->maccfg2, tempval); + + ugeth_info("%s: Full Duplex", dev->name); + } + + ugeth->oldduplex = mii_info->duplex; + } + + if (mii_info->speed != ugeth->oldspeed) { + switch (mii_info->speed) { + case 1000: +#ifdef CONFIG_MPC836x +/* FIXME: This code is for 100Mbs BUG fixing, +remove this when it is fixed!!! */ + if (ugeth->ug_info->enet_interface == + ENET_1000_GMII) + /* Run the commands which initialize the PHY */ + { + tempval = + (u32) mii_info->mdio_read(ugeth-> + dev, mii_info->mii_id, 0x1b); + tempval |= 0x000f; + mii_info->mdio_write(ugeth->dev, + mii_info->mii_id, 0x1b, + (u16) tempval); + tempval = + (u32) mii_info->mdio_read(ugeth-> + dev, mii_info->mii_id, + MII_BMCR); + mii_info->mdio_write(ugeth->dev, + mii_info->mii_id, MII_BMCR, + (u16) (tempval | BMCR_RESET)); + } else if (ugeth->ug_info->enet_interface == + ENET_1000_RGMII) + /* Run the commands which initialize the PHY */ + { + tempval = + (u32) mii_info->mdio_read(ugeth-> + dev, mii_info->mii_id, 0x1b); + tempval = (tempval & ~0x000f) | 0x000b; + mii_info->mdio_write(ugeth->dev, + mii_info->mii_id, 0x1b, + (u16) tempval); + tempval = + (u32) mii_info->mdio_read(ugeth-> + dev, mii_info->mii_id, + MII_BMCR); + mii_info->mdio_write(ugeth->dev, + mii_info->mii_id, MII_BMCR, + (u16) (tempval | BMCR_RESET)); + } + msleep(4000); +#endif /* CONFIG_MPC8360 */ + adjust_enet_interface(ugeth); + break; + case 100: + case 10: +#ifdef CONFIG_MPC836x +/* FIXME: This code is for 100Mbs BUG fixing, +remove this lines when it will be fixed!!! */ + ugeth->ug_info->enet_interface = ENET_100_RGMII; + tempval = + (u32) mii_info->mdio_read(ugeth->dev, + mii_info->mii_id, + 0x1b); + tempval = (tempval & ~0x000f) | 0x000b; + mii_info->mdio_write(ugeth->dev, + mii_info->mii_id, 0x1b, + (u16) tempval); + tempval = + (u32) mii_info->mdio_read(ugeth->dev, + mii_info->mii_id, + MII_BMCR); + mii_info->mdio_write(ugeth->dev, + mii_info->mii_id, MII_BMCR, + (u16) (tempval | + BMCR_RESET)); + msleep(4000); +#endif /* CONFIG_MPC8360 */ + adjust_enet_interface(ugeth); + break; + default: + ugeth_warn + ("%s: Ack! Speed (%d) is not 10/100/1000!", + dev->name, mii_info->speed); + break; + } + + ugeth_info("%s: Speed %dBT", dev->name, + mii_info->speed); + + ugeth->oldspeed = mii_info->speed; + } + + if (!ugeth->oldlink) { + ugeth_info("%s: Link is up", dev->name); + ugeth->oldlink = 1; + netif_carrier_on(dev); + netif_schedule(dev); + } + } else { + if (ugeth->oldlink) { + ugeth_info("%s: Link is down", dev->name); + ugeth->oldlink = 0; + ugeth->oldspeed = 0; + ugeth->oldduplex = -1; + netif_carrier_off(dev); + } + } +} + +/* Configure the PHY for dev. + * returns 0 if success. -1 if failure + */ +static int init_phy(struct net_device *dev) +{ + ucc_geth_private_t *ugeth = netdev_priv(dev); + struct phy_info *curphy; + ucc_mii_mng_t *mii_regs; + struct ugeth_mii_info *mii_info; + int err; + + mii_regs = &ugeth->ug_regs->miimng; + + ugeth->oldlink = 0; + ugeth->oldspeed = 0; + ugeth->oldduplex = -1; + + mii_info = kmalloc(sizeof(struct ugeth_mii_info), GFP_KERNEL); + + if (NULL == mii_info) { + ugeth_err("%s: Could not allocate mii_info", dev->name); + return -ENOMEM; + } + + mii_info->mii_regs = mii_regs; + mii_info->speed = SPEED_1000; + mii_info->duplex = DUPLEX_FULL; + mii_info->pause = 0; + mii_info->link = 0; + + mii_info->advertising = (ADVERTISED_10baseT_Half | + ADVERTISED_10baseT_Full | + ADVERTISED_100baseT_Half | + ADVERTISED_100baseT_Full | + ADVERTISED_1000baseT_Full); + mii_info->autoneg = 1; + + mii_info->mii_id = ugeth->ug_info->phy_address; + + mii_info->dev = dev; + + mii_info->mdio_read = &read_phy_reg; + mii_info->mdio_write = &write_phy_reg; + + ugeth->mii_info = mii_info; + + spin_lock_irq(&ugeth->lock); + + /* Set this UCC to be the master of the MII managment */ + ucc_set_qe_mux_mii_mng(ugeth->ug_info->uf_info.ucc_num); + + if (init_mii_management_configuration(1, + ugeth->ug_info-> + miiPreambleSupress, + &mii_regs->miimcfg, + &mii_regs->miimind)) { + ugeth_err("%s: The MII Bus is stuck!", dev->name); + err = -1; + goto bus_fail; + } + + spin_unlock_irq(&ugeth->lock); + + /* get info for this PHY */ + curphy = get_phy_info(ugeth->mii_info); + + if (curphy == NULL) { + ugeth_err("%s: No PHY found", dev->name); + err = -1; + goto no_phy; + } + + mii_info->phyinfo = curphy; + + /* Run the commands which initialize the PHY */ + if (curphy->init) { + err = curphy->init(ugeth->mii_info); + if (err) + goto phy_init_fail; + } + + return 0; + + phy_init_fail: + no_phy: + bus_fail: + kfree(mii_info); + + return err; +} + +#ifdef CONFIG_UGETH_TX_ON_DEMOND +static int ugeth_transmit_on_demand(ucc_geth_private_t *ugeth) +{ + ucc_fast_transmit_on_demand(ugeth->uccf); + + return 0; +} +#endif + +static int ugeth_graceful_stop_tx(ucc_geth_private_t *ugeth) +{ + ucc_fast_private_t *uccf; + u32 cecr_subblock; + u32 temp; + + uccf = ugeth->uccf; + + /* Mask GRACEFUL STOP TX interrupt bit and clear it */ + temp = in_be32(uccf->p_uccm); + temp &= ~UCCE_GRA; + out_be32(uccf->p_uccm, temp); + out_be32(uccf->p_ucce, UCCE_GRA); /* clear by writing 1 */ + + /* Issue host command */ + cecr_subblock = + ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num); + qe_issue_cmd(QE_GRACEFUL_STOP_TX, cecr_subblock, + (u8) QE_CR_PROTOCOL_ETHERNET, 0); + + /* Wait for command to complete */ + do { + temp = in_be32(uccf->p_ucce); + } while (!(temp & UCCE_GRA)); + + uccf->stopped_tx = 1; + + return 0; +} + +static int ugeth_graceful_stop_rx(ucc_geth_private_t * ugeth) +{ + ucc_fast_private_t *uccf; + u32 cecr_subblock; + u8 temp; + + uccf = ugeth->uccf; + + /* Clear acknowledge bit */ + temp = ugeth->p_rx_glbl_pram->rxgstpack; + temp &= ~GRACEFUL_STOP_ACKNOWLEDGE_RX; + ugeth->p_rx_glbl_pram->rxgstpack = temp; + + /* Keep issuing command and checking acknowledge bit until + it is asserted, according to spec */ + do { + /* Issue host command */ + cecr_subblock = + ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info. + ucc_num); + qe_issue_cmd(QE_GRACEFUL_STOP_RX, cecr_subblock, + (u8) QE_CR_PROTOCOL_ETHERNET, 0); + + temp = ugeth->p_rx_glbl_pram->rxgstpack; + } while (!(temp & GRACEFUL_STOP_ACKNOWLEDGE_RX)); + + uccf->stopped_rx = 1; + + return 0; +} + +static int ugeth_restart_tx(ucc_geth_private_t *ugeth) +{ + ucc_fast_private_t *uccf; + u32 cecr_subblock; + + uccf = ugeth->uccf; + + cecr_subblock = + ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num); + qe_issue_cmd(QE_RESTART_TX, cecr_subblock, (u8) QE_CR_PROTOCOL_ETHERNET, + 0); + uccf->stopped_tx = 0; + + return 0; +} + +static int ugeth_restart_rx(ucc_geth_private_t *ugeth) +{ + ucc_fast_private_t *uccf; + u32 cecr_subblock; + + uccf = ugeth->uccf; + + cecr_subblock = + ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num); + qe_issue_cmd(QE_RESTART_RX, cecr_subblock, (u8) QE_CR_PROTOCOL_ETHERNET, + 0); + uccf->stopped_rx = 0; + + return 0; +} + +static int ugeth_enable(ucc_geth_private_t *ugeth, comm_dir_e mode) +{ + ucc_fast_private_t *uccf; + int enabled_tx, enabled_rx; + + uccf = ugeth->uccf; + + /* check if the UCC number is in range. */ + if (ugeth->ug_info->uf_info.ucc_num >= UCC_MAX_NUM) { + ugeth_err("%s: ucc_num out of range.", __FUNCTION__); + return -EINVAL; + } + + enabled_tx = uccf->enabled_tx; + enabled_rx = uccf->enabled_rx; + + /* Get Tx and Rx going again, in case this channel was actively + disabled. */ + if ((mode & COMM_DIR_TX) && (!enabled_tx) && uccf->stopped_tx) + ugeth_restart_tx(ugeth); + if ((mode & COMM_DIR_RX) && (!enabled_rx) && uccf->stopped_rx) + ugeth_restart_rx(ugeth); + + ucc_fast_enable(uccf, mode); /* OK to do even if not disabled */ + + return 0; + +} + +static int ugeth_disable(ucc_geth_private_t * ugeth, comm_dir_e mode) +{ + ucc_fast_private_t *uccf; + + uccf = ugeth->uccf; + + /* check if the UCC number is in range. */ + if (ugeth->ug_info->uf_info.ucc_num >= UCC_MAX_NUM) { + ugeth_err("%s: ucc_num out of range.", __FUNCTION__); + return -EINVAL; + } + + /* Stop any transmissions */ + if ((mode & COMM_DIR_TX) && uccf->enabled_tx && !uccf->stopped_tx) + ugeth_graceful_stop_tx(ugeth); + + /* Stop any receptions */ + if ((mode & COMM_DIR_RX) && uccf->enabled_rx && !uccf->stopped_rx) + ugeth_graceful_stop_rx(ugeth); + + ucc_fast_disable(ugeth->uccf, mode); /* OK to do even if not enabled */ + + return 0; +} + +static void ugeth_dump_regs(ucc_geth_private_t *ugeth) +{ +#ifdef DEBUG + ucc_fast_dump_regs(ugeth->uccf); + dump_regs(ugeth); + dump_bds(ugeth); +#endif +} + +#ifdef CONFIG_UGETH_FILTERING +static int ugeth_ext_filtering_serialize_tad(ucc_geth_tad_params_t * + p_UccGethTadParams, + qe_fltr_tad_t *qe_fltr_tad) +{ + u16 temp; + + /* Zero serialized TAD */ + memset(qe_fltr_tad, 0, QE_FLTR_TAD_SIZE); + + qe_fltr_tad->serialized[0] |= UCC_GETH_TAD_V; /* Must have this */ + if (p_UccGethTadParams->rx_non_dynamic_extended_features_mode || + (p_UccGethTadParams->vtag_op != UCC_GETH_VLAN_OPERATION_TAGGED_NOP) + || (p_UccGethTadParams->vnontag_op != + UCC_GETH_VLAN_OPERATION_NON_TAGGED_NOP) + ) + qe_fltr_tad->serialized[0] |= UCC_GETH_TAD_EF; + if (p_UccGethTadParams->reject_frame) + qe_fltr_tad->serialized[0] |= UCC_GETH_TAD_REJ; + temp = + (u16) (((u16) p_UccGethTadParams-> + vtag_op) << UCC_GETH_TAD_VTAG_OP_SHIFT); + qe_fltr_tad->serialized[0] |= (u8) (temp >> 8); /* upper bits */ + + qe_fltr_tad->serialized[1] |= (u8) (temp & 0x00ff); /* lower bits */ + if (p_UccGethTadParams->vnontag_op == + UCC_GETH_VLAN_OPERATION_NON_TAGGED_Q_TAG_INSERT) + qe_fltr_tad->serialized[1] |= UCC_GETH_TAD_V_NON_VTAG_OP; + qe_fltr_tad->serialized[1] |= + p_UccGethTadParams->rqos << UCC_GETH_TAD_RQOS_SHIFT; + + qe_fltr_tad->serialized[2] |= + p_UccGethTadParams->vpri << UCC_GETH_TAD_V_PRIORITY_SHIFT; + /* upper bits */ + qe_fltr_tad->serialized[2] |= (u8) (p_UccGethTadParams->vid >> 8); + /* lower bits */ + qe_fltr_tad->serialized[3] |= (u8) (p_UccGethTadParams->vid & 0x00ff); + + return 0; +} + +static enet_addr_container_t + *ugeth_82xx_filtering_get_match_addr_in_hash(ucc_geth_private_t *ugeth, + enet_addr_t *p_enet_addr) +{ + enet_addr_container_t *enet_addr_cont; + struct list_head *p_lh; + u16 i, num; + int32_t j; + u8 *p_counter; + + if ((*p_enet_addr)[0] & ENET_GROUP_ADDR) { + p_lh = &ugeth->group_hash_q; + p_counter = &(ugeth->numGroupAddrInHash); + } else { + p_lh = &ugeth->ind_hash_q; + p_counter = &(ugeth->numIndAddrInHash); + } + + if (!p_lh) + return NULL; + + num = *p_counter; + + for (i = 0; i < num; i++) { + enet_addr_cont = + (enet_addr_container_t *) + ENET_ADDR_CONT_ENTRY(dequeue(p_lh)); + for (j = ENET_NUM_OCTETS_PER_ADDRESS - 1; j >= 0; j--) { + if ((*p_enet_addr)[j] != (enet_addr_cont->address)[j]) + break; + if (j == 0) + return enet_addr_cont; /* Found */ + } + enqueue(p_lh, &enet_addr_cont->node); /* Put it back */ + } + return NULL; +} + +static int ugeth_82xx_filtering_add_addr_in_hash(ucc_geth_private_t *ugeth, + enet_addr_t *p_enet_addr) +{ + ucc_geth_enet_address_recognition_location_e location; + enet_addr_container_t *enet_addr_cont; + struct list_head *p_lh; + u8 i; + u32 limit; + u8 *p_counter; + + if ((*p_enet_addr)[0] & ENET_GROUP_ADDR) { + p_lh = &ugeth->group_hash_q; + limit = ugeth->ug_info->maxGroupAddrInHash; + location = + UCC_GETH_ENET_ADDRESS_RECOGNITION_LOCATION_GROUP_HASH; + p_counter = &(ugeth->numGroupAddrInHash); + } else { + p_lh = &ugeth->ind_hash_q; + limit = ugeth->ug_info->maxIndAddrInHash; + location = + UCC_GETH_ENET_ADDRESS_RECOGNITION_LOCATION_INDIVIDUAL_HASH; + p_counter = &(ugeth->numIndAddrInHash); + } + + if ((enet_addr_cont = + ugeth_82xx_filtering_get_match_addr_in_hash(ugeth, p_enet_addr))) { + list_add(p_lh, &enet_addr_cont->node); /* Put it back */ + return 0; + } + if ((!p_lh) || (!(*p_counter < limit))) + return -EBUSY; + if (!(enet_addr_cont = get_enet_addr_container())) + return -ENOMEM; + for (i = 0; i < ENET_NUM_OCTETS_PER_ADDRESS; i++) + (enet_addr_cont->address)[i] = (*p_enet_addr)[i]; + enet_addr_cont->location = location; + enqueue(p_lh, &enet_addr_cont->node); /* Put it back */ + ++(*p_counter); + + hw_add_addr_in_hash(ugeth, &(enet_addr_cont->address)); + + return 0; +} + +static int ugeth_82xx_filtering_clear_addr_in_hash(ucc_geth_private_t *ugeth, + enet_addr_t *p_enet_addr) +{ + ucc_geth_82xx_address_filtering_pram_t *p_82xx_addr_filt; + enet_addr_container_t *enet_addr_cont; + ucc_fast_private_t *uccf; + comm_dir_e comm_dir; + u16 i, num; + struct list_head *p_lh; + u32 *addr_h, *addr_l; + u8 *p_counter; + + uccf = ugeth->uccf; + + p_82xx_addr_filt = + (ucc_geth_82xx_address_filtering_pram_t *) ugeth->p_rx_glbl_pram-> + addressfiltering; + + if (! + (enet_addr_cont = + ugeth_82xx_filtering_get_match_addr_in_hash(ugeth, p_enet_addr))) + return -ENOENT; + + /* It's been found and removed from the CQ. */ + /* Now destroy its container */ + put_enet_addr_container(enet_addr_cont); + + if ((*p_enet_addr)[0] & ENET_GROUP_ADDR) { + addr_h = &(p_82xx_addr_filt->gaddr_h); + addr_l = &(p_82xx_addr_filt->gaddr_l); + p_lh = &ugeth->group_hash_q; + p_counter = &(ugeth->numGroupAddrInHash); + } else { + addr_h = &(p_82xx_addr_filt->iaddr_h); + addr_l = &(p_82xx_addr_filt->iaddr_l); + p_lh = &ugeth->ind_hash_q; + p_counter = &(ugeth->numIndAddrInHash); + } + + comm_dir = 0; + if (uccf->enabled_tx) + comm_dir |= COMM_DIR_TX; + if (uccf->enabled_rx) + comm_dir |= COMM_DIR_RX; + if (comm_dir) + ugeth_disable(ugeth, comm_dir); + + /* Clear the hash table. */ + out_be32(addr_h, 0x00000000); + out_be32(addr_l, 0x00000000); + + /* Add all remaining CQ elements back into hash */ + num = --(*p_counter); + for (i = 0; i < num; i++) { + enet_addr_cont = + (enet_addr_container_t *) + ENET_ADDR_CONT_ENTRY(dequeue(p_lh)); + hw_add_addr_in_hash(ugeth, &(enet_addr_cont->address)); + enqueue(p_lh, &enet_addr_cont->node); /* Put it back */ + } + + if (comm_dir) + ugeth_enable(ugeth, comm_dir); + + return 0; +} +#endif /* CONFIG_UGETH_FILTERING */ + +static int ugeth_82xx_filtering_clear_all_addr_in_hash(ucc_geth_private_t * + ugeth, + enet_addr_type_e + enet_addr_type) +{ + ucc_geth_82xx_address_filtering_pram_t *p_82xx_addr_filt; + ucc_fast_private_t *uccf; + comm_dir_e comm_dir; + struct list_head *p_lh; + u16 i, num; + u32 *addr_h, *addr_l; + u8 *p_counter; + + uccf = ugeth->uccf; + + p_82xx_addr_filt = + (ucc_geth_82xx_address_filtering_pram_t *) ugeth->p_rx_glbl_pram-> + addressfiltering; + + if (enet_addr_type == ENET_ADDR_TYPE_GROUP) { + addr_h = &(p_82xx_addr_filt->gaddr_h); + addr_l = &(p_82xx_addr_filt->gaddr_l); + p_lh = &ugeth->group_hash_q; + p_counter = &(ugeth->numGroupAddrInHash); + } else if (enet_addr_type == ENET_ADDR_TYPE_INDIVIDUAL) { + addr_h = &(p_82xx_addr_filt->iaddr_h); + addr_l = &(p_82xx_addr_filt->iaddr_l); + p_lh = &ugeth->ind_hash_q; + p_counter = &(ugeth->numIndAddrInHash); + } else + return -EINVAL; + + comm_dir = 0; + if (uccf->enabled_tx) + comm_dir |= COMM_DIR_TX; + if (uccf->enabled_rx) + comm_dir |= COMM_DIR_RX; + if (comm_dir) + ugeth_disable(ugeth, comm_dir); + + /* Clear the hash table. */ + out_be32(addr_h, 0x00000000); + out_be32(addr_l, 0x00000000); + + if (!p_lh) + return 0; + + num = *p_counter; + + /* Delete all remaining CQ elements */ + for (i = 0; i < num; i++) + put_enet_addr_container(ENET_ADDR_CONT_ENTRY(dequeue(p_lh))); + + *p_counter = 0; + + if (comm_dir) + ugeth_enable(ugeth, comm_dir); + + return 0; +} + +#ifdef CONFIG_UGETH_FILTERING +static int ugeth_82xx_filtering_add_addr_in_paddr(ucc_geth_private_t *ugeth, + enet_addr_t *p_enet_addr, + u8 paddr_num) +{ + int i; + + if ((*p_enet_addr)[0] & ENET_GROUP_ADDR) + ugeth_warn + ("%s: multicast address added to paddr will have no " + "effect - is this what you wanted?", + __FUNCTION__); + + ugeth->indAddrRegUsed[paddr_num] = 1; /* mark this paddr as used */ + /* store address in our database */ + for (i = 0; i < ENET_NUM_OCTETS_PER_ADDRESS; i++) + ugeth->paddr[paddr_num][i] = (*p_enet_addr)[i]; + /* put in hardware */ + return hw_add_addr_in_paddr(ugeth, p_enet_addr, paddr_num); +} +#endif /* CONFIG_UGETH_FILTERING */ + +static int ugeth_82xx_filtering_clear_addr_in_paddr(ucc_geth_private_t *ugeth, + u8 paddr_num) +{ + ugeth->indAddrRegUsed[paddr_num] = 0; /* mark this paddr as not used */ + return hw_clear_addr_in_paddr(ugeth, paddr_num);/* clear in hardware */ +} + +static void ucc_geth_memclean(ucc_geth_private_t *ugeth) +{ + u16 i, j; + u8 *bd; + + if (!ugeth) + return; + + if (ugeth->uccf) + ucc_fast_free(ugeth->uccf); + + if (ugeth->p_thread_data_tx) { + qe_muram_free(ugeth->thread_dat_tx_offset); + ugeth->p_thread_data_tx = NULL; + } + if (ugeth->p_thread_data_rx) { + qe_muram_free(ugeth->thread_dat_rx_offset); + ugeth->p_thread_data_rx = NULL; + } + if (ugeth->p_exf_glbl_param) { + qe_muram_free(ugeth->exf_glbl_param_offset); + ugeth->p_exf_glbl_param = NULL; + } + if (ugeth->p_rx_glbl_pram) { + qe_muram_free(ugeth->rx_glbl_pram_offset); + ugeth->p_rx_glbl_pram = NULL; + } + if (ugeth->p_tx_glbl_pram) { + qe_muram_free(ugeth->tx_glbl_pram_offset); + ugeth->p_tx_glbl_pram = NULL; + } + if (ugeth->p_send_q_mem_reg) { + qe_muram_free(ugeth->send_q_mem_reg_offset); + ugeth->p_send_q_mem_reg = NULL; + } + if (ugeth->p_scheduler) { + qe_muram_free(ugeth->scheduler_offset); + ugeth->p_scheduler = NULL; + } + if (ugeth->p_tx_fw_statistics_pram) { + qe_muram_free(ugeth->tx_fw_statistics_pram_offset); + ugeth->p_tx_fw_statistics_pram = NULL; + } + if (ugeth->p_rx_fw_statistics_pram) { + qe_muram_free(ugeth->rx_fw_statistics_pram_offset); + ugeth->p_rx_fw_statistics_pram = NULL; + } + if (ugeth->p_rx_irq_coalescing_tbl) { + qe_muram_free(ugeth->rx_irq_coalescing_tbl_offset); + ugeth->p_rx_irq_coalescing_tbl = NULL; + } + if (ugeth->p_rx_bd_qs_tbl) { + qe_muram_free(ugeth->rx_bd_qs_tbl_offset); + ugeth->p_rx_bd_qs_tbl = NULL; + } + if (ugeth->p_init_enet_param_shadow) { + return_init_enet_entries(ugeth, + &(ugeth->p_init_enet_param_shadow-> + rxthread[0]), + ENET_INIT_PARAM_MAX_ENTRIES_RX, + ugeth->ug_info->riscRx, 1); + return_init_enet_entries(ugeth, + &(ugeth->p_init_enet_param_shadow-> + txthread[0]), + ENET_INIT_PARAM_MAX_ENTRIES_TX, + ugeth->ug_info->riscTx, 0); + kfree(ugeth->p_init_enet_param_shadow); + ugeth->p_init_enet_param_shadow = NULL; + } + for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) { + bd = ugeth->p_tx_bd_ring[i]; + for (j = 0; j < ugeth->ug_info->bdRingLenTx[i]; j++) { + if (ugeth->tx_skbuff[i][j]) { + dma_unmap_single(NULL, + BD_BUFFER_ARG(bd), + (BD_STATUS_AND_LENGTH(bd) & + BD_LENGTH_MASK), + DMA_TO_DEVICE); + dev_kfree_skb_any(ugeth->tx_skbuff[i][j]); + ugeth->tx_skbuff[i][j] = NULL; + } + } + + kfree(ugeth->tx_skbuff[i]); + + if (ugeth->p_tx_bd_ring[i]) { + if (ugeth->ug_info->uf_info.bd_mem_part == + MEM_PART_SYSTEM) + kfree((void *)ugeth->tx_bd_ring_offset[i]); + else if (ugeth->ug_info->uf_info.bd_mem_part == + MEM_PART_MURAM) + qe_muram_free(ugeth->tx_bd_ring_offset[i]); + ugeth->p_tx_bd_ring[i] = NULL; + } + } + for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) { + if (ugeth->p_rx_bd_ring[i]) { + /* Return existing data buffers in ring */ + bd = ugeth->p_rx_bd_ring[i]; + for (j = 0; j < ugeth->ug_info->bdRingLenRx[i]; j++) { + if (ugeth->rx_skbuff[i][j]) { + dma_unmap_single(NULL, BD_BUFFER(bd), + ugeth->ug_info-> + uf_info. + max_rx_buf_length + + UCC_GETH_RX_DATA_BUF_ALIGNMENT, + DMA_FROM_DEVICE); + + dev_kfree_skb_any(ugeth-> + rx_skbuff[i][j]); + ugeth->rx_skbuff[i][j] = NULL; + } + bd += UCC_GETH_SIZE_OF_BD; + } + + kfree(ugeth->rx_skbuff[i]); + + if (ugeth->ug_info->uf_info.bd_mem_part == + MEM_PART_SYSTEM) + kfree((void *)ugeth->rx_bd_ring_offset[i]); + else if (ugeth->ug_info->uf_info.bd_mem_part == + MEM_PART_MURAM) + qe_muram_free(ugeth->rx_bd_ring_offset[i]); + ugeth->p_rx_bd_ring[i] = NULL; + } + } + while (!list_empty(&ugeth->group_hash_q)) + put_enet_addr_container(ENET_ADDR_CONT_ENTRY + (dequeue(&ugeth->group_hash_q))); + while (!list_empty(&ugeth->ind_hash_q)) + put_enet_addr_container(ENET_ADDR_CONT_ENTRY + (dequeue(&ugeth->ind_hash_q))); + +} + +static void ucc_geth_set_multi(struct net_device *dev) +{ + ucc_geth_private_t *ugeth; + struct dev_mc_list *dmi; + ucc_fast_t *uf_regs; + ucc_geth_82xx_address_filtering_pram_t *p_82xx_addr_filt; + enet_addr_t tempaddr; + u8 *mcptr, *tdptr; + int i, j; + + ugeth = netdev_priv(dev); + + uf_regs = ugeth->uccf->uf_regs; + + if (dev->flags & IFF_PROMISC) { + + /* Log any net taps. */ + printk("%s: Promiscuous mode enabled.\n", dev->name); + uf_regs->upsmr |= UPSMR_PRO; + + } else { + + uf_regs->upsmr &= ~UPSMR_PRO; + + p_82xx_addr_filt = + (ucc_geth_82xx_address_filtering_pram_t *) ugeth-> + p_rx_glbl_pram->addressfiltering; + + if (dev->flags & IFF_ALLMULTI) { + /* Catch all multicast addresses, so set the + * filter to all 1's. + */ + out_be32(&p_82xx_addr_filt->gaddr_h, 0xffffffff); + out_be32(&p_82xx_addr_filt->gaddr_l, 0xffffffff); + } else { + /* Clear filter and add the addresses in the list. + */ + out_be32(&p_82xx_addr_filt->gaddr_h, 0x0); + out_be32(&p_82xx_addr_filt->gaddr_l, 0x0); + + dmi = dev->mc_list; + + for (i = 0; i < dev->mc_count; i++, dmi = dmi->next) { + + /* Only support group multicast for now. + */ + if (!(dmi->dmi_addr[0] & 1)) + continue; + + /* The address in dmi_addr is LSB first, + * and taddr is MSB first. We have to + * copy bytes MSB first from dmi_addr. + */ + mcptr = (u8 *) dmi->dmi_addr + 5; + tdptr = (u8 *) & tempaddr; + for (j = 0; j < 6; j++) + *tdptr++ = *mcptr--; + + /* Ask CPM to run CRC and set bit in + * filter mask. + */ + hw_add_addr_in_hash(ugeth, &tempaddr); + + } + } + } +} + +static void ucc_geth_stop(ucc_geth_private_t *ugeth) +{ + ucc_geth_t *ug_regs = ugeth->ug_regs; + u32 tempval; + + ugeth_vdbg("%s: IN", __FUNCTION__); + + /* Disable the controller */ + ugeth_disable(ugeth, COMM_DIR_RX_AND_TX); + + /* Tell the kernel the link is down */ + ugeth->mii_info->link = 0; + adjust_link(ugeth->dev); + + /* Mask all interrupts */ + out_be32(ugeth->uccf->p_ucce, 0x00000000); + + /* Clear all interrupts */ + out_be32(ugeth->uccf->p_ucce, 0xffffffff); + + /* Disable Rx and Tx */ + tempval = in_be32(&ug_regs->maccfg1); + tempval &= ~(MACCFG1_ENABLE_RX | MACCFG1_ENABLE_TX); + out_be32(&ug_regs->maccfg1, tempval); + + if (ugeth->ug_info->board_flags & FSL_UGETH_BRD_HAS_PHY_INTR) { + /* Clear any pending interrupts */ + mii_clear_phy_interrupt(ugeth->mii_info); + + /* Disable PHY Interrupts */ + mii_configure_phy_interrupt(ugeth->mii_info, + MII_INTERRUPT_DISABLED); + } + + free_irq(ugeth->ug_info->uf_info.irq, ugeth->dev); + + if (ugeth->ug_info->board_flags & FSL_UGETH_BRD_HAS_PHY_INTR) { + free_irq(ugeth->ug_info->phy_interrupt, ugeth->dev); + } else { + del_timer_sync(&ugeth->phy_info_timer); + } + + ucc_geth_memclean(ugeth); +} + +static int ucc_geth_startup(ucc_geth_private_t *ugeth) +{ + ucc_geth_82xx_address_filtering_pram_t *p_82xx_addr_filt; + ucc_geth_init_pram_t *p_init_enet_pram; + ucc_fast_private_t *uccf; + ucc_geth_info_t *ug_info; + ucc_fast_info_t *uf_info; + ucc_fast_t *uf_regs; + ucc_geth_t *ug_regs; + int ret_val = -EINVAL; + u32 remoder = UCC_GETH_REMODER_INIT; + u32 init_enet_pram_offset, cecr_subblock, command, maccfg1; + u32 ifstat, i, j, size, l2qt, l3qt, length; + u16 temoder = UCC_GETH_TEMODER_INIT; + u16 test; + u8 function_code = 0; + u8 *bd, *endOfRing; + u8 numThreadsRxNumerical, numThreadsTxNumerical; + + ugeth_vdbg("%s: IN", __FUNCTION__); + + ug_info = ugeth->ug_info; + uf_info = &ug_info->uf_info; + + if (!((uf_info->bd_mem_part == MEM_PART_SYSTEM) || + (uf_info->bd_mem_part == MEM_PART_MURAM))) { + ugeth_err("%s: Bad memory partition value.", __FUNCTION__); + return -EINVAL; + } + + /* Rx BD lengths */ + for (i = 0; i < ug_info->numQueuesRx; i++) { + if ((ug_info->bdRingLenRx[i] < UCC_GETH_RX_BD_RING_SIZE_MIN) || + (ug_info->bdRingLenRx[i] % + UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT)) { + ugeth_err + ("%s: Rx BD ring length must be multiple of 4," + " no smaller than 8.", __FUNCTION__); + return -EINVAL; + } + } + + /* Tx BD lengths */ + for (i = 0; i < ug_info->numQueuesTx; i++) { + if (ug_info->bdRingLenTx[i] < UCC_GETH_TX_BD_RING_SIZE_MIN) { + ugeth_err + ("%s: Tx BD ring length must be no smaller than 2.", + __FUNCTION__); + return -EINVAL; + } + } + + /* mrblr */ + if ((uf_info->max_rx_buf_length == 0) || + (uf_info->max_rx_buf_length % UCC_GETH_MRBLR_ALIGNMENT)) { + ugeth_err + ("%s: max_rx_buf_length must be non-zero multiple of 128.", + __FUNCTION__); + return -EINVAL; + } + + /* num Tx queues */ + if (ug_info->numQueuesTx > NUM_TX_QUEUES) { + ugeth_err("%s: number of tx queues too large.", __FUNCTION__); + return -EINVAL; + } + + /* num Rx queues */ + if (ug_info->numQueuesRx > NUM_RX_QUEUES) { + ugeth_err("%s: number of rx queues too large.", __FUNCTION__); + return -EINVAL; + } + + /* l2qt */ + for (i = 0; i < UCC_GETH_VLAN_PRIORITY_MAX; i++) { + if (ug_info->l2qt[i] >= ug_info->numQueuesRx) { + ugeth_err + ("%s: VLAN priority table entry must not be" + " larger than number of Rx queues.", + __FUNCTION__); + return -EINVAL; + } + } + + /* l3qt */ + for (i = 0; i < UCC_GETH_IP_PRIORITY_MAX; i++) { + if (ug_info->l3qt[i] >= ug_info->numQueuesRx) { + ugeth_err + ("%s: IP priority table entry must not be" + " larger than number of Rx queues.", + __FUNCTION__); + return -EINVAL; + } + } + + if (ug_info->cam && !ug_info->ecamptr) { + ugeth_err("%s: If cam mode is chosen, must supply cam ptr.", + __FUNCTION__); + return -EINVAL; + } + + if ((ug_info->numStationAddresses != + UCC_GETH_NUM_OF_STATION_ADDRESSES_1) + && ug_info->rxExtendedFiltering) { + ugeth_err("%s: Number of station addresses greater than 1 " + "not allowed in extended parsing mode.", + __FUNCTION__); + return -EINVAL; + } + + /* Generate uccm_mask for receive */ + uf_info->uccm_mask = ug_info->eventRegMask & UCCE_OTHER;/* Errors */ + for (i = 0; i < ug_info->numQueuesRx; i++) + uf_info->uccm_mask |= (UCCE_RXBF_SINGLE_MASK << i); + + for (i = 0; i < ug_info->numQueuesTx; i++) + uf_info->uccm_mask |= (UCCE_TXBF_SINGLE_MASK << i); + /* Initialize the general fast UCC block. */ + if (ucc_fast_init(uf_info, &uccf)) { + ugeth_err("%s: Failed to init uccf.", __FUNCTION__); + ucc_geth_memclean(ugeth); + return -ENOMEM; + } + ugeth->uccf = uccf; + + switch (ug_info->numThreadsRx) { + case UCC_GETH_NUM_OF_THREADS_1: + numThreadsRxNumerical = 1; + break; + case UCC_GETH_NUM_OF_THREADS_2: + numThreadsRxNumerical = 2; + break; + case UCC_GETH_NUM_OF_THREADS_4: + numThreadsRxNumerical = 4; + break; + case UCC_GETH_NUM_OF_THREADS_6: + numThreadsRxNumerical = 6; + break; + case UCC_GETH_NUM_OF_THREADS_8: + numThreadsRxNumerical = 8; + break; + default: + ugeth_err("%s: Bad number of Rx threads value.", __FUNCTION__); + ucc_geth_memclean(ugeth); + return -EINVAL; + break; + } + + switch (ug_info->numThreadsTx) { + case UCC_GETH_NUM_OF_THREADS_1: + numThreadsTxNumerical = 1; + break; + case UCC_GETH_NUM_OF_THREADS_2: + numThreadsTxNumerical = 2; + break; + case UCC_GETH_NUM_OF_THREADS_4: + numThreadsTxNumerical = 4; + break; + case UCC_GETH_NUM_OF_THREADS_6: + numThreadsTxNumerical = 6; + break; + case UCC_GETH_NUM_OF_THREADS_8: + numThreadsTxNumerical = 8; + break; + default: + ugeth_err("%s: Bad number of Tx threads value.", __FUNCTION__); + ucc_geth_memclean(ugeth); + return -EINVAL; + break; + } + + /* Calculate rx_extended_features */ + ugeth->rx_non_dynamic_extended_features = ug_info->ipCheckSumCheck || + ug_info->ipAddressAlignment || + (ug_info->numStationAddresses != + UCC_GETH_NUM_OF_STATION_ADDRESSES_1); + + ugeth->rx_extended_features = ugeth->rx_non_dynamic_extended_features || + (ug_info->vlanOperationTagged != UCC_GETH_VLAN_OPERATION_TAGGED_NOP) + || (ug_info->vlanOperationNonTagged != + UCC_GETH_VLAN_OPERATION_NON_TAGGED_NOP); + + uf_regs = uccf->uf_regs; + ug_regs = (ucc_geth_t *) (uccf->uf_regs); + ugeth->ug_regs = ug_regs; + + init_default_reg_vals(&uf_regs->upsmr, + &ug_regs->maccfg1, &ug_regs->maccfg2); + + /* Set UPSMR */ + /* For more details see the hardware spec. */ + init_rx_parameters(ug_info->bro, + ug_info->rsh, ug_info->pro, &uf_regs->upsmr); + + /* We're going to ignore other registers for now, */ + /* except as needed to get up and running */ + + /* Set MACCFG1 */ + /* For more details see the hardware spec. */ + init_flow_control_params(ug_info->aufc, + ug_info->receiveFlowControl, + 1, + ug_info->pausePeriod, + ug_info->extensionField, + &uf_regs->upsmr, + &ug_regs->uempr, &ug_regs->maccfg1); + + maccfg1 = in_be32(&ug_regs->maccfg1); + maccfg1 |= MACCFG1_ENABLE_RX; + maccfg1 |= MACCFG1_ENABLE_TX; + out_be32(&ug_regs->maccfg1, maccfg1); + + /* Set IPGIFG */ + /* For more details see the hardware spec. */ + ret_val = init_inter_frame_gap_params(ug_info->nonBackToBackIfgPart1, + ug_info->nonBackToBackIfgPart2, + ug_info-> + miminumInterFrameGapEnforcement, + ug_info->backToBackInterFrameGap, + &ug_regs->ipgifg); + if (ret_val != 0) { + ugeth_err("%s: IPGIFG initialization parameter too large.", + __FUNCTION__); + ucc_geth_memclean(ugeth); + return ret_val; + } + + /* Set HAFDUP */ + /* For more details see the hardware spec. */ + ret_val = init_half_duplex_params(ug_info->altBeb, + ug_info->backPressureNoBackoff, + ug_info->noBackoff, + ug_info->excessDefer, + ug_info->altBebTruncation, + ug_info->maxRetransmission, + ug_info->collisionWindow, + &ug_regs->hafdup); + if (ret_val != 0) { + ugeth_err("%s: Half Duplex initialization parameter too large.", + __FUNCTION__); + ucc_geth_memclean(ugeth); + return ret_val; + } + + /* Set IFSTAT */ + /* For more details see the hardware spec. */ + /* Read only - resets upon read */ + ifstat = in_be32(&ug_regs->ifstat); + + /* Clear UEMPR */ + /* For more details see the hardware spec. */ + out_be32(&ug_regs->uempr, 0); + + /* Set UESCR */ + /* For more details see the hardware spec. */ + init_hw_statistics_gathering_mode((ug_info->statisticsMode & + UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE), + 0, &uf_regs->upsmr, &ug_regs->uescr); + + /* Allocate Tx bds */ + for (j = 0; j < ug_info->numQueuesTx; j++) { + /* Allocate in multiple of + UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT, + according to spec */ + length = ((ug_info->bdRingLenTx[j] * UCC_GETH_SIZE_OF_BD) + / UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT) + * UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT; + if ((ug_info->bdRingLenTx[j] * UCC_GETH_SIZE_OF_BD) % + UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT) + length += UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT; + if (uf_info->bd_mem_part == MEM_PART_SYSTEM) { + u32 align = 4; + if (UCC_GETH_TX_BD_RING_ALIGNMENT > 4) + align = UCC_GETH_TX_BD_RING_ALIGNMENT; + ugeth->tx_bd_ring_offset[j] = + (u32) (kmalloc((u32) (length + align), + GFP_KERNEL)); + if (ugeth->tx_bd_ring_offset[j] != 0) + ugeth->p_tx_bd_ring[j] = + (void*)((ugeth->tx_bd_ring_offset[j] + + align) & ~(align - 1)); + } else if (uf_info->bd_mem_part == MEM_PART_MURAM) { + ugeth->tx_bd_ring_offset[j] = + qe_muram_alloc(length, + UCC_GETH_TX_BD_RING_ALIGNMENT); + if (!IS_MURAM_ERR(ugeth->tx_bd_ring_offset[j])) + ugeth->p_tx_bd_ring[j] = + (u8 *) qe_muram_addr(ugeth-> + tx_bd_ring_offset[j]); + } + if (!ugeth->p_tx_bd_ring[j]) { + ugeth_err + ("%s: Can not allocate memory for Tx bd rings.", + __FUNCTION__); + ucc_geth_memclean(ugeth); + return -ENOMEM; + } + /* Zero unused end of bd ring, according to spec */ + memset(ugeth->p_tx_bd_ring[j] + + ug_info->bdRingLenTx[j] * UCC_GETH_SIZE_OF_BD, 0, + length - ug_info->bdRingLenTx[j] * UCC_GETH_SIZE_OF_BD); + } + + /* Allocate Rx bds */ + for (j = 0; j < ug_info->numQueuesRx; j++) { + length = ug_info->bdRingLenRx[j] * UCC_GETH_SIZE_OF_BD; + if (uf_info->bd_mem_part == MEM_PART_SYSTEM) { + u32 align = 4; + if (UCC_GETH_RX_BD_RING_ALIGNMENT > 4) + align = UCC_GETH_RX_BD_RING_ALIGNMENT; + ugeth->rx_bd_ring_offset[j] = + (u32) (kmalloc((u32) (length + align), GFP_KERNEL)); + if (ugeth->rx_bd_ring_offset[j] != 0) + ugeth->p_rx_bd_ring[j] = + (void*)((ugeth->rx_bd_ring_offset[j] + + align) & ~(align - 1)); + } else if (uf_info->bd_mem_part == MEM_PART_MURAM) { + ugeth->rx_bd_ring_offset[j] = + qe_muram_alloc(length, + UCC_GETH_RX_BD_RING_ALIGNMENT); + if (!IS_MURAM_ERR(ugeth->rx_bd_ring_offset[j])) + ugeth->p_rx_bd_ring[j] = + (u8 *) qe_muram_addr(ugeth-> + rx_bd_ring_offset[j]); + } + if (!ugeth->p_rx_bd_ring[j]) { + ugeth_err + ("%s: Can not allocate memory for Rx bd rings.", + __FUNCTION__); + ucc_geth_memclean(ugeth); + return -ENOMEM; + } + } + + /* Init Tx bds */ + for (j = 0; j < ug_info->numQueuesTx; j++) { + /* Setup the skbuff rings */ + ugeth->tx_skbuff[j] = + (struct sk_buff **)kmalloc(sizeof(struct sk_buff *) * + ugeth->ug_info->bdRingLenTx[j], + GFP_KERNEL); + + if (ugeth->tx_skbuff[j] == NULL) { + ugeth_err("%s: Could not allocate tx_skbuff", + __FUNCTION__); + ucc_geth_memclean(ugeth); + return -ENOMEM; + } + + for (i = 0; i < ugeth->ug_info->bdRingLenTx[j]; i++) + ugeth->tx_skbuff[j][i] = NULL; + + ugeth->skb_curtx[j] = ugeth->skb_dirtytx[j] = 0; + bd = ugeth->confBd[j] = ugeth->txBd[j] = ugeth->p_tx_bd_ring[j]; + for (i = 0; i < ug_info->bdRingLenTx[j]; i++) { + BD_BUFFER_CLEAR(bd); + BD_STATUS_AND_LENGTH_SET(bd, 0); + bd += UCC_GETH_SIZE_OF_BD; + } + bd -= UCC_GETH_SIZE_OF_BD; + BD_STATUS_AND_LENGTH_SET(bd, T_W);/* for last BD set Wrap bit */ + } + + /* Init Rx bds */ + for (j = 0; j < ug_info->numQueuesRx; j++) { + /* Setup the skbuff rings */ + ugeth->rx_skbuff[j] = + (struct sk_buff **)kmalloc(sizeof(struct sk_buff *) * + ugeth->ug_info->bdRingLenRx[j], + GFP_KERNEL); + + if (ugeth->rx_skbuff[j] == NULL) { + ugeth_err("%s: Could not allocate rx_skbuff", + __FUNCTION__); + ucc_geth_memclean(ugeth); + return -ENOMEM; + } + + for (i = 0; i < ugeth->ug_info->bdRingLenRx[j]; i++) + ugeth->rx_skbuff[j][i] = NULL; + + ugeth->skb_currx[j] = 0; + bd = ugeth->rxBd[j] = ugeth->p_rx_bd_ring[j]; + for (i = 0; i < ug_info->bdRingLenRx[j]; i++) { + BD_STATUS_AND_LENGTH_SET(bd, R_I); + BD_BUFFER_CLEAR(bd); + bd += UCC_GETH_SIZE_OF_BD; + } + bd -= UCC_GETH_SIZE_OF_BD; + BD_STATUS_AND_LENGTH_SET(bd, R_W);/* for last BD set Wrap bit */ + } + + /* + * Global PRAM + */ + /* Tx global PRAM */ + /* Allocate global tx parameter RAM page */ + ugeth->tx_glbl_pram_offset = + qe_muram_alloc(sizeof(ucc_geth_tx_global_pram_t), + UCC_GETH_TX_GLOBAL_PRAM_ALIGNMENT); + if (IS_MURAM_ERR(ugeth->tx_glbl_pram_offset)) { + ugeth_err + ("%s: Can not allocate DPRAM memory for p_tx_glbl_pram.", + __FUNCTION__); + ucc_geth_memclean(ugeth); + return -ENOMEM; + } + ugeth->p_tx_glbl_pram = + (ucc_geth_tx_global_pram_t *) qe_muram_addr(ugeth-> + tx_glbl_pram_offset); + /* Zero out p_tx_glbl_pram */ + memset(ugeth->p_tx_glbl_pram, 0, sizeof(ucc_geth_tx_global_pram_t)); + + /* Fill global PRAM */ + + /* TQPTR */ + /* Size varies with number of Tx threads */ + ugeth->thread_dat_tx_offset = + qe_muram_alloc(numThreadsTxNumerical * + sizeof(ucc_geth_thread_data_tx_t) + + 32 * (numThreadsTxNumerical == 1), + UCC_GETH_THREAD_DATA_ALIGNMENT); + if (IS_MURAM_ERR(ugeth->thread_dat_tx_offset)) { + ugeth_err + ("%s: Can not allocate DPRAM memory for p_thread_data_tx.", + __FUNCTION__); + ucc_geth_memclean(ugeth); + return -ENOMEM; + } + + ugeth->p_thread_data_tx = + (ucc_geth_thread_data_tx_t *) qe_muram_addr(ugeth-> + thread_dat_tx_offset); + out_be32(&ugeth->p_tx_glbl_pram->tqptr, ugeth->thread_dat_tx_offset); + + /* vtagtable */ + for (i = 0; i < UCC_GETH_TX_VTAG_TABLE_ENTRY_MAX; i++) + out_be32(&ugeth->p_tx_glbl_pram->vtagtable[i], + ug_info->vtagtable[i]); + + /* iphoffset */ + for (i = 0; i < TX_IP_OFFSET_ENTRY_MAX; i++) + ugeth->p_tx_glbl_pram->iphoffset[i] = ug_info->iphoffset[i]; + + /* SQPTR */ + /* Size varies with number of Tx queues */ + ugeth->send_q_mem_reg_offset = + qe_muram_alloc(ug_info->numQueuesTx * + sizeof(ucc_geth_send_queue_qd_t), + UCC_GETH_SEND_QUEUE_QUEUE_DESCRIPTOR_ALIGNMENT); + if (IS_MURAM_ERR(ugeth->send_q_mem_reg_offset)) { + ugeth_err + ("%s: Can not allocate DPRAM memory for p_send_q_mem_reg.", + __FUNCTION__); + ucc_geth_memclean(ugeth); + return -ENOMEM; + } + + ugeth->p_send_q_mem_reg = + (ucc_geth_send_queue_mem_region_t *) qe_muram_addr(ugeth-> + send_q_mem_reg_offset); + out_be32(&ugeth->p_tx_glbl_pram->sqptr, ugeth->send_q_mem_reg_offset); + + /* Setup the table */ + /* Assume BD rings are already established */ + for (i = 0; i < ug_info->numQueuesTx; i++) { + endOfRing = + ugeth->p_tx_bd_ring[i] + (ug_info->bdRingLenTx[i] - + 1) * UCC_GETH_SIZE_OF_BD; + if (ugeth->ug_info->uf_info.bd_mem_part == MEM_PART_SYSTEM) { + out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].bd_ring_base, + (u32) virt_to_phys(ugeth->p_tx_bd_ring[i])); + out_be32(&ugeth->p_send_q_mem_reg->sqqd[i]. + last_bd_completed_address, + (u32) virt_to_phys(endOfRing)); + } else if (ugeth->ug_info->uf_info.bd_mem_part == + MEM_PART_MURAM) { + out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].bd_ring_base, + (u32) immrbar_virt_to_phys(ugeth-> + p_tx_bd_ring[i])); + out_be32(&ugeth->p_send_q_mem_reg->sqqd[i]. + last_bd_completed_address, + (u32) immrbar_virt_to_phys(endOfRing)); + } + } + + /* schedulerbasepointer */ + + if (ug_info->numQueuesTx > 1) { + /* scheduler exists only if more than 1 tx queue */ + ugeth->scheduler_offset = + qe_muram_alloc(sizeof(ucc_geth_scheduler_t), + UCC_GETH_SCHEDULER_ALIGNMENT); + if (IS_MURAM_ERR(ugeth->scheduler_offset)) { + ugeth_err + ("%s: Can not allocate DPRAM memory for p_scheduler.", + __FUNCTION__); + ucc_geth_memclean(ugeth); + return -ENOMEM; + } + + ugeth->p_scheduler = + (ucc_geth_scheduler_t *) qe_muram_addr(ugeth-> + scheduler_offset); + out_be32(&ugeth->p_tx_glbl_pram->schedulerbasepointer, + ugeth->scheduler_offset); + /* Zero out p_scheduler */ + memset(ugeth->p_scheduler, 0, sizeof(ucc_geth_scheduler_t)); + + /* Set values in scheduler */ + out_be32(&ugeth->p_scheduler->mblinterval, + ug_info->mblinterval); + out_be16(&ugeth->p_scheduler->nortsrbytetime, + ug_info->nortsrbytetime); + ugeth->p_scheduler->fracsiz = ug_info->fracsiz; + ugeth->p_scheduler->strictpriorityq = ug_info->strictpriorityq; + ugeth->p_scheduler->txasap = ug_info->txasap; + ugeth->p_scheduler->extrabw = ug_info->extrabw; + for (i = 0; i < NUM_TX_QUEUES; i++) + ugeth->p_scheduler->weightfactor[i] = + ug_info->weightfactor[i]; + + /* Set pointers to cpucount registers in scheduler */ + ugeth->p_cpucount[0] = &(ugeth->p_scheduler->cpucount0); + ugeth->p_cpucount[1] = &(ugeth->p_scheduler->cpucount1); + ugeth->p_cpucount[2] = &(ugeth->p_scheduler->cpucount2); + ugeth->p_cpucount[3] = &(ugeth->p_scheduler->cpucount3); + ugeth->p_cpucount[4] = &(ugeth->p_scheduler->cpucount4); + ugeth->p_cpucount[5] = &(ugeth->p_scheduler->cpucount5); + ugeth->p_cpucount[6] = &(ugeth->p_scheduler->cpucount6); + ugeth->p_cpucount[7] = &(ugeth->p_scheduler->cpucount7); + } + + /* schedulerbasepointer */ + /* TxRMON_PTR (statistics) */ + if (ug_info-> + statisticsMode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) { + ugeth->tx_fw_statistics_pram_offset = + qe_muram_alloc(sizeof + (ucc_geth_tx_firmware_statistics_pram_t), + UCC_GETH_TX_STATISTICS_ALIGNMENT); + if (IS_MURAM_ERR(ugeth->tx_fw_statistics_pram_offset)) { + ugeth_err + ("%s: Can not allocate DPRAM memory for" + " p_tx_fw_statistics_pram.", __FUNCTION__); + ucc_geth_memclean(ugeth); + return -ENOMEM; + } + ugeth->p_tx_fw_statistics_pram = + (ucc_geth_tx_firmware_statistics_pram_t *) + qe_muram_addr(ugeth->tx_fw_statistics_pram_offset); + /* Zero out p_tx_fw_statistics_pram */ + memset(ugeth->p_tx_fw_statistics_pram, + 0, sizeof(ucc_geth_tx_firmware_statistics_pram_t)); + } + + /* temoder */ + /* Already has speed set */ + + if (ug_info->numQueuesTx > 1) + temoder |= TEMODER_SCHEDULER_ENABLE; + if (ug_info->ipCheckSumGenerate) + temoder |= TEMODER_IP_CHECKSUM_GENERATE; + temoder |= ((ug_info->numQueuesTx - 1) << TEMODER_NUM_OF_QUEUES_SHIFT); + out_be16(&ugeth->p_tx_glbl_pram->temoder, temoder); + + test = in_be16(&ugeth->p_tx_glbl_pram->temoder); + + /* Function code register value to be used later */ + function_code = QE_BMR_BYTE_ORDER_BO_MOT | UCC_FAST_FUNCTION_CODE_GBL; + /* Required for QE */ + + /* function code register */ + out_be32(&ugeth->p_tx_glbl_pram->tstate, ((u32) function_code) << 24); + + /* Rx global PRAM */ + /* Allocate global rx parameter RAM page */ + ugeth->rx_glbl_pram_offset = + qe_muram_alloc(sizeof(ucc_geth_rx_global_pram_t), + UCC_GETH_RX_GLOBAL_PRAM_ALIGNMENT); + if (IS_MURAM_ERR(ugeth->rx_glbl_pram_offset)) { + ugeth_err + ("%s: Can not allocate DPRAM memory for p_rx_glbl_pram.", + __FUNCTION__); + ucc_geth_memclean(ugeth); + return -ENOMEM; + } + ugeth->p_rx_glbl_pram = + (ucc_geth_rx_global_pram_t *) qe_muram_addr(ugeth-> + rx_glbl_pram_offset); + /* Zero out p_rx_glbl_pram */ + memset(ugeth->p_rx_glbl_pram, 0, sizeof(ucc_geth_rx_global_pram_t)); + + /* Fill global PRAM */ + + /* RQPTR */ + /* Size varies with number of Rx threads */ + ugeth->thread_dat_rx_offset = + qe_muram_alloc(numThreadsRxNumerical * + sizeof(ucc_geth_thread_data_rx_t), + UCC_GETH_THREAD_DATA_ALIGNMENT); + if (IS_MURAM_ERR(ugeth->thread_dat_rx_offset)) { + ugeth_err + ("%s: Can not allocate DPRAM memory for p_thread_data_rx.", + __FUNCTION__); + ucc_geth_memclean(ugeth); + return -ENOMEM; + } + + ugeth->p_thread_data_rx = + (ucc_geth_thread_data_rx_t *) qe_muram_addr(ugeth-> + thread_dat_rx_offset); + out_be32(&ugeth->p_rx_glbl_pram->rqptr, ugeth->thread_dat_rx_offset); + + /* typeorlen */ + out_be16(&ugeth->p_rx_glbl_pram->typeorlen, ug_info->typeorlen); + + /* rxrmonbaseptr (statistics) */ + if (ug_info-> + statisticsMode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX) { + ugeth->rx_fw_statistics_pram_offset = + qe_muram_alloc(sizeof + (ucc_geth_rx_firmware_statistics_pram_t), + UCC_GETH_RX_STATISTICS_ALIGNMENT); + if (IS_MURAM_ERR(ugeth->rx_fw_statistics_pram_offset)) { + ugeth_err + ("%s: Can not allocate DPRAM memory for" + " p_rx_fw_statistics_pram.", __FUNCTION__); + ucc_geth_memclean(ugeth); + return -ENOMEM; + } + ugeth->p_rx_fw_statistics_pram = + (ucc_geth_rx_firmware_statistics_pram_t *) + qe_muram_addr(ugeth->rx_fw_statistics_pram_offset); + /* Zero out p_rx_fw_statistics_pram */ + memset(ugeth->p_rx_fw_statistics_pram, 0, + sizeof(ucc_geth_rx_firmware_statistics_pram_t)); + } + + /* intCoalescingPtr */ + + /* Size varies with number of Rx queues */ + ugeth->rx_irq_coalescing_tbl_offset = + qe_muram_alloc(ug_info->numQueuesRx * + sizeof(ucc_geth_rx_interrupt_coalescing_entry_t), + UCC_GETH_RX_INTERRUPT_COALESCING_ALIGNMENT); + if (IS_MURAM_ERR(ugeth->rx_irq_coalescing_tbl_offset)) { + ugeth_err + ("%s: Can not allocate DPRAM memory for" + " p_rx_irq_coalescing_tbl.", __FUNCTION__); + ucc_geth_memclean(ugeth); + return -ENOMEM; + } + + ugeth->p_rx_irq_coalescing_tbl = + (ucc_geth_rx_interrupt_coalescing_table_t *) + qe_muram_addr(ugeth->rx_irq_coalescing_tbl_offset); + out_be32(&ugeth->p_rx_glbl_pram->intcoalescingptr, + ugeth->rx_irq_coalescing_tbl_offset); + + /* Fill interrupt coalescing table */ + for (i = 0; i < ug_info->numQueuesRx; i++) { + out_be32(&ugeth->p_rx_irq_coalescing_tbl->coalescingentry[i]. + interruptcoalescingmaxvalue, + ug_info->interruptcoalescingmaxvalue[i]); + out_be32(&ugeth->p_rx_irq_coalescing_tbl->coalescingentry[i]. + interruptcoalescingcounter, + ug_info->interruptcoalescingmaxvalue[i]); + } + + /* MRBLR */ + init_max_rx_buff_len(uf_info->max_rx_buf_length, + &ugeth->p_rx_glbl_pram->mrblr); + /* MFLR */ + out_be16(&ugeth->p_rx_glbl_pram->mflr, ug_info->maxFrameLength); + /* MINFLR */ + init_min_frame_len(ug_info->minFrameLength, + &ugeth->p_rx_glbl_pram->minflr, + &ugeth->p_rx_glbl_pram->mrblr); + /* MAXD1 */ + out_be16(&ugeth->p_rx_glbl_pram->maxd1, ug_info->maxD1Length); + /* MAXD2 */ + out_be16(&ugeth->p_rx_glbl_pram->maxd2, ug_info->maxD2Length); + + /* l2qt */ + l2qt = 0; + for (i = 0; i < UCC_GETH_VLAN_PRIORITY_MAX; i++) + l2qt |= (ug_info->l2qt[i] << (28 - 4 * i)); + out_be32(&ugeth->p_rx_glbl_pram->l2qt, l2qt); + + /* l3qt */ + for (j = 0; j < UCC_GETH_IP_PRIORITY_MAX; j += 8) { + l3qt = 0; + for (i = 0; i < 8; i++) + l3qt |= (ug_info->l3qt[j + i] << (28 - 4 * i)); + out_be32(&ugeth->p_rx_glbl_pram->l3qt[j], l3qt); + } + + /* vlantype */ + out_be16(&ugeth->p_rx_glbl_pram->vlantype, ug_info->vlantype); + + /* vlantci */ + out_be16(&ugeth->p_rx_glbl_pram->vlantci, ug_info->vlantci); + + /* ecamptr */ + out_be32(&ugeth->p_rx_glbl_pram->ecamptr, ug_info->ecamptr); + + /* RBDQPTR */ + /* Size varies with number of Rx queues */ + ugeth->rx_bd_qs_tbl_offset = + qe_muram_alloc(ug_info->numQueuesRx * + (sizeof(ucc_geth_rx_bd_queues_entry_t) + + sizeof(ucc_geth_rx_prefetched_bds_t)), + UCC_GETH_RX_BD_QUEUES_ALIGNMENT); + if (IS_MURAM_ERR(ugeth->rx_bd_qs_tbl_offset)) { + ugeth_err + ("%s: Can not allocate DPRAM memory for p_rx_bd_qs_tbl.", + __FUNCTION__); + ucc_geth_memclean(ugeth); + return -ENOMEM; + } + + ugeth->p_rx_bd_qs_tbl = + (ucc_geth_rx_bd_queues_entry_t *) qe_muram_addr(ugeth-> + rx_bd_qs_tbl_offset); + out_be32(&ugeth->p_rx_glbl_pram->rbdqptr, ugeth->rx_bd_qs_tbl_offset); + /* Zero out p_rx_bd_qs_tbl */ + memset(ugeth->p_rx_bd_qs_tbl, + 0, + ug_info->numQueuesRx * (sizeof(ucc_geth_rx_bd_queues_entry_t) + + sizeof(ucc_geth_rx_prefetched_bds_t))); + + /* Setup the table */ + /* Assume BD rings are already established */ + for (i = 0; i < ug_info->numQueuesRx; i++) { + if (ugeth->ug_info->uf_info.bd_mem_part == MEM_PART_SYSTEM) { + out_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr, + (u32) virt_to_phys(ugeth->p_rx_bd_ring[i])); + } else if (ugeth->ug_info->uf_info.bd_mem_part == + MEM_PART_MURAM) { + out_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr, + (u32) immrbar_virt_to_phys(ugeth-> + p_rx_bd_ring[i])); + } + /* rest of fields handled by QE */ + } + + /* remoder */ + /* Already has speed set */ + + if (ugeth->rx_extended_features) + remoder |= REMODER_RX_EXTENDED_FEATURES; + if (ug_info->rxExtendedFiltering) + remoder |= REMODER_RX_EXTENDED_FILTERING; + if (ug_info->dynamicMaxFrameLength) + remoder |= REMODER_DYNAMIC_MAX_FRAME_LENGTH; + if (ug_info->dynamicMinFrameLength) + remoder |= REMODER_DYNAMIC_MIN_FRAME_LENGTH; + remoder |= + ug_info->vlanOperationTagged << REMODER_VLAN_OPERATION_TAGGED_SHIFT; + remoder |= + ug_info-> + vlanOperationNonTagged << REMODER_VLAN_OPERATION_NON_TAGGED_SHIFT; + remoder |= ug_info->rxQoSMode << REMODER_RX_QOS_MODE_SHIFT; + remoder |= ((ug_info->numQueuesRx - 1) << REMODER_NUM_OF_QUEUES_SHIFT); + if (ug_info->ipCheckSumCheck) + remoder |= REMODER_IP_CHECKSUM_CHECK; + if (ug_info->ipAddressAlignment) + remoder |= REMODER_IP_ADDRESS_ALIGNMENT; + out_be32(&ugeth->p_rx_glbl_pram->remoder, remoder); + + /* Note that this function must be called */ + /* ONLY AFTER p_tx_fw_statistics_pram */ + /* andp_UccGethRxFirmwareStatisticsPram are allocated ! */ + init_firmware_statistics_gathering_mode((ug_info-> + statisticsMode & + UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX), + (ug_info->statisticsMode & + UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX), + &ugeth->p_tx_glbl_pram->txrmonbaseptr, + ugeth->tx_fw_statistics_pram_offset, + &ugeth->p_rx_glbl_pram->rxrmonbaseptr, + ugeth->rx_fw_statistics_pram_offset, + &ugeth->p_tx_glbl_pram->temoder, + &ugeth->p_rx_glbl_pram->remoder); + + /* function code register */ + ugeth->p_rx_glbl_pram->rstate = function_code; + + /* initialize extended filtering */ + if (ug_info->rxExtendedFiltering) { + if (!ug_info->extendedFilteringChainPointer) { + ugeth_err("%s: Null Extended Filtering Chain Pointer.", + __FUNCTION__); + ucc_geth_memclean(ugeth); + return -EINVAL; + } + + /* Allocate memory for extended filtering Mode Global + Parameters */ + ugeth->exf_glbl_param_offset = + qe_muram_alloc(sizeof(ucc_geth_exf_global_pram_t), + UCC_GETH_RX_EXTENDED_FILTERING_GLOBAL_PARAMETERS_ALIGNMENT); + if (IS_MURAM_ERR(ugeth->exf_glbl_param_offset)) { + ugeth_err + ("%s: Can not allocate DPRAM memory for" + " p_exf_glbl_param.", __FUNCTION__); + ucc_geth_memclean(ugeth); + return -ENOMEM; + } + + ugeth->p_exf_glbl_param = + (ucc_geth_exf_global_pram_t *) qe_muram_addr(ugeth-> + exf_glbl_param_offset); + out_be32(&ugeth->p_rx_glbl_pram->exfGlobalParam, + ugeth->exf_glbl_param_offset); + out_be32(&ugeth->p_exf_glbl_param->l2pcdptr, + (u32) ug_info->extendedFilteringChainPointer); + + } else { /* initialize 82xx style address filtering */ + + /* Init individual address recognition registers to disabled */ + + for (j = 0; j < NUM_OF_PADDRS; j++) + ugeth_82xx_filtering_clear_addr_in_paddr(ugeth, (u8) j); + + /* Create CQs for hash tables */ + if (ug_info->maxGroupAddrInHash > 0) { + INIT_LIST_HEAD(&ugeth->group_hash_q); + } + if (ug_info->maxIndAddrInHash > 0) { + INIT_LIST_HEAD(&ugeth->ind_hash_q); + } + p_82xx_addr_filt = + (ucc_geth_82xx_address_filtering_pram_t *) ugeth-> + p_rx_glbl_pram->addressfiltering; + + ugeth_82xx_filtering_clear_all_addr_in_hash(ugeth, + ENET_ADDR_TYPE_GROUP); + ugeth_82xx_filtering_clear_all_addr_in_hash(ugeth, + ENET_ADDR_TYPE_INDIVIDUAL); + } + + /* + * Initialize UCC at QE level + */ + + command = QE_INIT_TX_RX; + + /* Allocate shadow InitEnet command parameter structure. + * This is needed because after the InitEnet command is executed, + * the structure in DPRAM is released, because DPRAM is a premium + * resource. + * This shadow structure keeps a copy of what was done so that the + * allocated resources can be released when the channel is freed. + */ + if (!(ugeth->p_init_enet_param_shadow = + (ucc_geth_init_pram_t *) kmalloc(sizeof(ucc_geth_init_pram_t), + GFP_KERNEL))) { + ugeth_err + ("%s: Can not allocate memory for" + " p_UccInitEnetParamShadows.", __FUNCTION__); + ucc_geth_memclean(ugeth); + return -ENOMEM; + } + /* Zero out *p_init_enet_param_shadow */ + memset((char *)ugeth->p_init_enet_param_shadow, + 0, sizeof(ucc_geth_init_pram_t)); + + /* Fill shadow InitEnet command parameter structure */ + + ugeth->p_init_enet_param_shadow->resinit1 = + ENET_INIT_PARAM_MAGIC_RES_INIT1; + ugeth->p_init_enet_param_shadow->resinit2 = + ENET_INIT_PARAM_MAGIC_RES_INIT2; + ugeth->p_init_enet_param_shadow->resinit3 = + ENET_INIT_PARAM_MAGIC_RES_INIT3; + ugeth->p_init_enet_param_shadow->resinit4 = + ENET_INIT_PARAM_MAGIC_RES_INIT4; + ugeth->p_init_enet_param_shadow->resinit5 = + ENET_INIT_PARAM_MAGIC_RES_INIT5; + ugeth->p_init_enet_param_shadow->rgftgfrxglobal |= + ((u32) ug_info->numThreadsRx) << ENET_INIT_PARAM_RGF_SHIFT; + ugeth->p_init_enet_param_shadow->rgftgfrxglobal |= + ((u32) ug_info->numThreadsTx) << ENET_INIT_PARAM_TGF_SHIFT; + + ugeth->p_init_enet_param_shadow->rgftgfrxglobal |= + ugeth->rx_glbl_pram_offset | ug_info->riscRx; + if ((ug_info->largestexternallookupkeysize != + QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_NONE) + && (ug_info->largestexternallookupkeysize != + QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_8_BYTES) + && (ug_info->largestexternallookupkeysize != + QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_16_BYTES)) { + ugeth_err("%s: Invalid largest External Lookup Key Size.", + __FUNCTION__); + ucc_geth_memclean(ugeth); + return -EINVAL; + } + ugeth->p_init_enet_param_shadow->largestexternallookupkeysize = + ug_info->largestexternallookupkeysize; + size = sizeof(ucc_geth_thread_rx_pram_t); + if (ug_info->rxExtendedFiltering) { + size += THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING; + if (ug_info->largestexternallookupkeysize == + QE_FLTR_TABLE_LOOKUP_KEY_SIZE_8_BYTES) + size += + THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_8; + if (ug_info->largestexternallookupkeysize == + QE_FLTR_TABLE_LOOKUP_KEY_SIZE_16_BYTES) + size += + THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_16; + } + + if ((ret_val = fill_init_enet_entries(ugeth, &(ugeth-> + p_init_enet_param_shadow->rxthread[0]), + (u8) (numThreadsRxNumerical + 1) + /* Rx needs one extra for terminator */ + , size, UCC_GETH_THREAD_RX_PRAM_ALIGNMENT, + ug_info->riscRx, 1)) != 0) { + ugeth_err("%s: Can not fill p_init_enet_param_shadow.", + __FUNCTION__); + ucc_geth_memclean(ugeth); + return ret_val; + } + + ugeth->p_init_enet_param_shadow->txglobal = + ugeth->tx_glbl_pram_offset | ug_info->riscTx; + if ((ret_val = + fill_init_enet_entries(ugeth, + &(ugeth->p_init_enet_param_shadow-> + txthread[0]), numThreadsTxNumerical, + sizeof(ucc_geth_thread_tx_pram_t), + UCC_GETH_THREAD_TX_PRAM_ALIGNMENT, + ug_info->riscTx, 0)) != 0) { + ugeth_err("%s: Can not fill p_init_enet_param_shadow.", + __FUNCTION__); + ucc_geth_memclean(ugeth); + return ret_val; + } + + /* Load Rx bds with buffers */ + for (i = 0; i < ug_info->numQueuesRx; i++) { + if ((ret_val = rx_bd_buffer_set(ugeth, (u8) i)) != 0) { + ugeth_err("%s: Can not fill Rx bds with buffers.", + __FUNCTION__); + ucc_geth_memclean(ugeth); + return ret_val; + } + } + + /* Allocate InitEnet command parameter structure */ + init_enet_pram_offset = qe_muram_alloc(sizeof(ucc_geth_init_pram_t), 4); + if (IS_MURAM_ERR(init_enet_pram_offset)) { + ugeth_err + ("%s: Can not allocate DPRAM memory for p_init_enet_pram.", + __FUNCTION__); + ucc_geth_memclean(ugeth); + return -ENOMEM; + } + p_init_enet_pram = + (ucc_geth_init_pram_t *) qe_muram_addr(init_enet_pram_offset); + + /* Copy shadow InitEnet command parameter structure into PRAM */ + p_init_enet_pram->resinit1 = ugeth->p_init_enet_param_shadow->resinit1; + p_init_enet_pram->resinit2 = ugeth->p_init_enet_param_shadow->resinit2; + p_init_enet_pram->resinit3 = ugeth->p_init_enet_param_shadow->resinit3; + p_init_enet_pram->resinit4 = ugeth->p_init_enet_param_shadow->resinit4; + out_be16(&p_init_enet_pram->resinit5, + ugeth->p_init_enet_param_shadow->resinit5); + p_init_enet_pram->largestexternallookupkeysize = + ugeth->p_init_enet_param_shadow->largestexternallookupkeysize; + out_be32(&p_init_enet_pram->rgftgfrxglobal, + ugeth->p_init_enet_param_shadow->rgftgfrxglobal); + for (i = 0; i < ENET_INIT_PARAM_MAX_ENTRIES_RX; i++) + out_be32(&p_init_enet_pram->rxthread[i], + ugeth->p_init_enet_param_shadow->rxthread[i]); + out_be32(&p_init_enet_pram->txglobal, + ugeth->p_init_enet_param_shadow->txglobal); + for (i = 0; i < ENET_INIT_PARAM_MAX_ENTRIES_TX; i++) + out_be32(&p_init_enet_pram->txthread[i], + ugeth->p_init_enet_param_shadow->txthread[i]); + + /* Issue QE command */ + cecr_subblock = + ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num); + qe_issue_cmd(command, cecr_subblock, (u8) QE_CR_PROTOCOL_ETHERNET, + init_enet_pram_offset); + + /* Free InitEnet command parameter */ + qe_muram_free(init_enet_pram_offset); + + return 0; +} + +/* returns a net_device_stats structure pointer */ +static struct net_device_stats *ucc_geth_get_stats(struct net_device *dev) +{ + ucc_geth_private_t *ugeth = netdev_priv(dev); + + return &(ugeth->stats); +} + +/* ucc_geth_timeout gets called when a packet has not been + * transmitted after a set amount of time. + * For now, assume that clearing out all the structures, and + * starting over will fix the problem. */ +static void ucc_geth_timeout(struct net_device *dev) +{ + ucc_geth_private_t *ugeth = netdev_priv(dev); + + ugeth_vdbg("%s: IN", __FUNCTION__); + + ugeth->stats.tx_errors++; + + ugeth_dump_regs(ugeth); + + if (dev->flags & IFF_UP) { + ucc_geth_stop(ugeth); + ucc_geth_startup(ugeth); + } + + netif_schedule(dev); +} + +/* This is called by the kernel when a frame is ready for transmission. */ +/* It is pointed to by the dev->hard_start_xmit function pointer */ +static int ucc_geth_start_xmit(struct sk_buff *skb, struct net_device *dev) +{ + ucc_geth_private_t *ugeth = netdev_priv(dev); + u8 *bd; /* BD pointer */ + u32 bd_status; + u8 txQ = 0; + + ugeth_vdbg("%s: IN", __FUNCTION__); + + spin_lock_irq(&ugeth->lock); + + ugeth->stats.tx_bytes += skb->len; + + /* Start from the next BD that should be filled */ + bd = ugeth->txBd[txQ]; + bd_status = BD_STATUS_AND_LENGTH(bd); + /* Save the skb pointer so we can free it later */ + ugeth->tx_skbuff[txQ][ugeth->skb_curtx[txQ]] = skb; + + /* Update the current skb pointer (wrapping if this was the last) */ + ugeth->skb_curtx[txQ] = + (ugeth->skb_curtx[txQ] + + 1) & TX_RING_MOD_MASK(ugeth->ug_info->bdRingLenTx[txQ]); + + /* set up the buffer descriptor */ + BD_BUFFER_SET(bd, + dma_map_single(NULL, skb->data, skb->len, DMA_TO_DEVICE)); + + //printk(KERN_DEBUG"skb->data is 0x%x\n",skb->data); + + bd_status = (bd_status & T_W) | T_R | T_I | T_L | skb->len; + + BD_STATUS_AND_LENGTH_SET(bd, bd_status); + + dev->trans_start = jiffies; + + /* Move to next BD in the ring */ + if (!(bd_status & T_W)) + ugeth->txBd[txQ] = bd + UCC_GETH_SIZE_OF_BD; + else + ugeth->txBd[txQ] = ugeth->p_tx_bd_ring[txQ]; + + /* If the next BD still needs to be cleaned up, then the bds + are full. We need to tell the kernel to stop sending us stuff. */ + if (bd == ugeth->confBd[txQ]) { + if (!netif_queue_stopped(dev)) + netif_stop_queue(dev); + } + + if (ugeth->p_scheduler) { + ugeth->cpucount[txQ]++; + /* Indicate to QE that there are more Tx bds ready for + transmission */ + /* This is done by writing a running counter of the bd + count to the scheduler PRAM. */ + out_be16(ugeth->p_cpucount[txQ], ugeth->cpucount[txQ]); + } + + spin_unlock_irq(&ugeth->lock); + + return 0; +} + +static int ucc_geth_rx(ucc_geth_private_t *ugeth, u8 rxQ, int rx_work_limit) +{ + struct sk_buff *skb; + u8 *bd; + u16 length, howmany = 0; + u32 bd_status; + u8 *bdBuffer; + + ugeth_vdbg("%s: IN", __FUNCTION__); + + spin_lock(&ugeth->lock); + /* collect received buffers */ + bd = ugeth->rxBd[rxQ]; + + bd_status = BD_STATUS_AND_LENGTH(bd); + + /* while there are received buffers and BD is full (~R_E) */ + while (!((bd_status & (R_E)) || (--rx_work_limit < 0))) { + bdBuffer = (u8 *) BD_BUFFER(bd); + length = (u16) ((bd_status & BD_LENGTH_MASK) - 4); + skb = ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]]; + + /* determine whether buffer is first, last, first and last + (single buffer frame) or middle (not first and not last) */ + if (!skb || + (!(bd_status & (R_F | R_L))) || + (bd_status & R_ERRORS_FATAL)) { + ugeth_vdbg("%s, %d: ERROR!!! skb - 0x%08x", + __FUNCTION__, __LINE__, (u32) skb); + if (skb) + dev_kfree_skb_any(skb); + + ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]] = NULL; + ugeth->stats.rx_dropped++; + } else { + ugeth->stats.rx_packets++; + howmany++; + + /* Prep the skb for the packet */ + skb_put(skb, length); + + /* Tell the skb what kind of packet this is */ + skb->protocol = eth_type_trans(skb, ugeth->dev); + + ugeth->stats.rx_bytes += length; + /* Send the packet up the stack */ +#ifdef CONFIG_UGETH_NAPI + netif_receive_skb(skb); +#else + netif_rx(skb); +#endif /* CONFIG_UGETH_NAPI */ + } + + ugeth->dev->last_rx = jiffies; + + skb = get_new_skb(ugeth, bd); + if (!skb) { + ugeth_warn("%s: No Rx Data Buffer", __FUNCTION__); + spin_unlock(&ugeth->lock); + ugeth->stats.rx_dropped++; + break; + } + + ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]] = skb; + + /* update to point at the next skb */ + ugeth->skb_currx[rxQ] = + (ugeth->skb_currx[rxQ] + + 1) & RX_RING_MOD_MASK(ugeth->ug_info->bdRingLenRx[rxQ]); + + if (bd_status & R_W) + bd = ugeth->p_rx_bd_ring[rxQ]; + else + bd += UCC_GETH_SIZE_OF_BD; + + bd_status = BD_STATUS_AND_LENGTH(bd); + } + + ugeth->rxBd[rxQ] = bd; + spin_unlock(&ugeth->lock); + return howmany; +} + +static int ucc_geth_tx(struct net_device *dev, u8 txQ) +{ + /* Start from the next BD that should be filled */ + ucc_geth_private_t *ugeth = netdev_priv(dev); + u8 *bd; /* BD pointer */ + u32 bd_status; + + bd = ugeth->confBd[txQ]; + bd_status = BD_STATUS_AND_LENGTH(bd); + + /* Normal processing. */ + while ((bd_status & T_R) == 0) { + /* BD contains already transmitted buffer. */ + /* Handle the transmitted buffer and release */ + /* the BD to be used with the current frame */ + + if ((bd = ugeth->txBd[txQ]) && (netif_queue_stopped(dev) == 0)) + break; + + ugeth->stats.tx_packets++; + + /* Free the sk buffer associated with this TxBD */ + dev_kfree_skb_irq(ugeth-> + tx_skbuff[txQ][ugeth->skb_dirtytx[txQ]]); + ugeth->tx_skbuff[txQ][ugeth->skb_dirtytx[txQ]] = NULL; + ugeth->skb_dirtytx[txQ] = + (ugeth->skb_dirtytx[txQ] + + 1) & TX_RING_MOD_MASK(ugeth->ug_info->bdRingLenTx[txQ]); + + /* We freed a buffer, so now we can restart transmission */ + if (netif_queue_stopped(dev)) + netif_wake_queue(dev); + + /* Advance the confirmation BD pointer */ + if (!(bd_status & T_W)) + ugeth->confBd[txQ] += UCC_GETH_SIZE_OF_BD; + else + ugeth->confBd[txQ] = ugeth->p_tx_bd_ring[txQ]; + } + return 0; +} + +#ifdef CONFIG_UGETH_NAPI +static int ucc_geth_poll(struct net_device *dev, int *budget) +{ + ucc_geth_private_t *ugeth = netdev_priv(dev); + int howmany; + int rx_work_limit = *budget; + u8 rxQ = 0; + + if (rx_work_limit > dev->quota) + rx_work_limit = dev->quota; + + howmany = ucc_geth_rx(ugeth, rxQ, rx_work_limit); + + dev->quota -= howmany; + rx_work_limit -= howmany; + *budget -= howmany; + + if (rx_work_limit >= 0) + netif_rx_complete(dev); + + return (rx_work_limit < 0) ? 1 : 0; +} +#endif /* CONFIG_UGETH_NAPI */ + +static irqreturn_t ucc_geth_irq_handler(int irq, void *info, + struct pt_regs *regs) +{ + struct net_device *dev = (struct net_device *)info; + ucc_geth_private_t *ugeth = netdev_priv(dev); + ucc_fast_private_t *uccf; + ucc_geth_info_t *ug_info; + register u32 ucce = 0; + register u32 bit_mask = UCCE_RXBF_SINGLE_MASK; + register u32 tx_mask = UCCE_TXBF_SINGLE_MASK; + register u8 i; + + ugeth_vdbg("%s: IN", __FUNCTION__); + + if (!ugeth) + return IRQ_NONE; + + uccf = ugeth->uccf; + ug_info = ugeth->ug_info; + + do { + ucce |= (u32) (in_be32(uccf->p_ucce) & in_be32(uccf->p_uccm)); + + /* clear event bits for next time */ + /* Side effect here is to mask ucce variable + for future processing below. */ + out_be32(uccf->p_ucce, ucce); /* Clear with ones, + but only bits in UCCM */ + + /* We ignore Tx interrupts because Tx confirmation is + done inside Tx routine */ + + for (i = 0; i < ug_info->numQueuesRx; i++) { + if (ucce & bit_mask) + ucc_geth_rx(ugeth, i, + (int)ugeth->ug_info-> + bdRingLenRx[i]); + ucce &= ~bit_mask; + bit_mask <<= 1; + } + + for (i = 0; i < ug_info->numQueuesTx; i++) { + if (ucce & tx_mask) + ucc_geth_tx(dev, i); + ucce &= ~tx_mask; + tx_mask <<= 1; + } + + /* Exceptions */ + if (ucce & UCCE_BSY) { + ugeth_vdbg("Got BUSY irq!!!!"); + ugeth->stats.rx_errors++; + ucce &= ~UCCE_BSY; + } + if (ucce & UCCE_OTHER) { + ugeth_vdbg("Got frame with error (ucce - 0x%08x)!!!!", + ucce); + ugeth->stats.rx_errors++; + ucce &= ~ucce; + } + } + while (ucce); + + return IRQ_HANDLED; +} + +static irqreturn_t phy_interrupt(int irq, void *dev_id, struct pt_regs *regs) +{ + struct net_device *dev = (struct net_device *)dev_id; + ucc_geth_private_t *ugeth = netdev_priv(dev); + + ugeth_vdbg("%s: IN", __FUNCTION__); + + /* Clear the interrupt */ + mii_clear_phy_interrupt(ugeth->mii_info); + + /* Disable PHY interrupts */ + mii_configure_phy_interrupt(ugeth->mii_info, MII_INTERRUPT_DISABLED); + + /* Schedule the phy change */ + schedule_work(&ugeth->tq); + + return IRQ_HANDLED; +} + +/* Scheduled by the phy_interrupt/timer to handle PHY changes */ +static void ugeth_phy_change(void *data) +{ + struct net_device *dev = (struct net_device *)data; + ucc_geth_private_t *ugeth = netdev_priv(dev); + ucc_geth_t *ug_regs; + int result = 0; + + ugeth_vdbg("%s: IN", __FUNCTION__); + + ug_regs = ugeth->ug_regs; + + /* Delay to give the PHY a chance to change the + * register state */ + msleep(1); + + /* Update the link, speed, duplex */ + result = ugeth->mii_info->phyinfo->read_status(ugeth->mii_info); + + /* Adjust the known status as long as the link + * isn't still coming up */ + if ((0 == result) || (ugeth->mii_info->link == 0)) + adjust_link(dev); + + /* Reenable interrupts, if needed */ + if (ugeth->ug_info->board_flags & FSL_UGETH_BRD_HAS_PHY_INTR) + mii_configure_phy_interrupt(ugeth->mii_info, + MII_INTERRUPT_ENABLED); +} + +/* Called every so often on systems that don't interrupt + * the core for PHY changes */ +static void ugeth_phy_timer(unsigned long data) +{ + struct net_device *dev = (struct net_device *)data; + ucc_geth_private_t *ugeth = netdev_priv(dev); + + schedule_work(&ugeth->tq); + + mod_timer(&ugeth->phy_info_timer, jiffies + PHY_CHANGE_TIME * HZ); +} + +/* Keep trying aneg for some time + * If, after GFAR_AN_TIMEOUT seconds, it has not + * finished, we switch to forced. + * Either way, once the process has completed, we either + * request the interrupt, or switch the timer over to + * using ugeth_phy_timer to check status */ +static void ugeth_phy_startup_timer(unsigned long data) +{ + struct ugeth_mii_info *mii_info = (struct ugeth_mii_info *)data; + ucc_geth_private_t *ugeth = netdev_priv(mii_info->dev); + static int secondary = UGETH_AN_TIMEOUT; + int result; + + /* Configure the Auto-negotiation */ + result = mii_info->phyinfo->config_aneg(mii_info); + + /* If autonegotiation failed to start, and + * we haven't timed out, reset the timer, and return */ + if (result && secondary--) { + mod_timer(&ugeth->phy_info_timer, jiffies + HZ); + return; + } else if (result) { + /* Couldn't start autonegotiation. + * Try switching to forced */ + mii_info->autoneg = 0; + result = mii_info->phyinfo->config_aneg(mii_info); + + /* Forcing failed! Give up */ + if (result) { + ugeth_err("%s: Forcing failed!", mii_info->dev->name); + return; + } + } + + /* Kill the timer so it can be restarted */ + del_timer_sync(&ugeth->phy_info_timer); + + /* Grab the PHY interrupt, if necessary/possible */ + if (ugeth->ug_info->board_flags & FSL_UGETH_BRD_HAS_PHY_INTR) { + if (request_irq(ugeth->ug_info->phy_interrupt, + phy_interrupt, + SA_SHIRQ, "phy_interrupt", mii_info->dev) < 0) { + ugeth_err("%s: Can't get IRQ %d (PHY)", + mii_info->dev->name, + ugeth->ug_info->phy_interrupt); + } else { + mii_configure_phy_interrupt(ugeth->mii_info, + MII_INTERRUPT_ENABLED); + return; + } + } + + /* Start the timer again, this time in order to + * handle a change in status */ + init_timer(&ugeth->phy_info_timer); + ugeth->phy_info_timer.function = &ugeth_phy_timer; + ugeth->phy_info_timer.data = (unsigned long)mii_info->dev; + mod_timer(&ugeth->phy_info_timer, jiffies + PHY_CHANGE_TIME * HZ); +} + +/* Called when something needs to use the ethernet device */ +/* Returns 0 for success. */ +static int ucc_geth_open(struct net_device *dev) +{ + ucc_geth_private_t *ugeth = netdev_priv(dev); + int err; + + ugeth_vdbg("%s: IN", __FUNCTION__); + + /* Test station address */ + if (dev->dev_addr[0] & ENET_GROUP_ADDR) { + ugeth_err("%s: Multicast address used for station address" + " - is this what you wanted?", __FUNCTION__); + return -EINVAL; + } + + err = ucc_geth_startup(ugeth); + if (err) { + ugeth_err("%s: Cannot configure net device, aborting.", + dev->name); + return err; + } + + err = adjust_enet_interface(ugeth); + if (err) { + ugeth_err("%s: Cannot configure net device, aborting.", + dev->name); + return err; + } + + /* Set MACSTNADDR1, MACSTNADDR2 */ + /* For more details see the hardware spec. */ + init_mac_station_addr_regs(dev->dev_addr[0], + dev->dev_addr[1], + dev->dev_addr[2], + dev->dev_addr[3], + dev->dev_addr[4], + dev->dev_addr[5], + &ugeth->ug_regs->macstnaddr1, + &ugeth->ug_regs->macstnaddr2); + + err = init_phy(dev); + if (err) { + ugeth_err("%s: Cannot initialzie PHY, aborting.", dev->name); + return err; + } +#ifndef CONFIG_UGETH_NAPI + err = + request_irq(ugeth->ug_info->uf_info.irq, ucc_geth_irq_handler, 0, + "UCC Geth", dev); + if (err) { + ugeth_err("%s: Cannot get IRQ for net device, aborting.", + dev->name); + ucc_geth_stop(ugeth); + return err; + } +#endif /* CONFIG_UGETH_NAPI */ + + /* Set up the PHY change work queue */ + INIT_WORK(&ugeth->tq, ugeth_phy_change, dev); + + init_timer(&ugeth->phy_info_timer); + ugeth->phy_info_timer.function = &ugeth_phy_startup_timer; + ugeth->phy_info_timer.data = (unsigned long)ugeth->mii_info; + mod_timer(&ugeth->phy_info_timer, jiffies + HZ); + + err = ugeth_enable(ugeth, COMM_DIR_RX_AND_TX); + if (err) { + ugeth_err("%s: Cannot enable net device, aborting.", dev->name); + ucc_geth_stop(ugeth); + return err; + } + + netif_start_queue(dev); + + return err; +} + +/* Stops the kernel queue, and halts the controller */ +static int ucc_geth_close(struct net_device *dev) +{ + ucc_geth_private_t *ugeth = netdev_priv(dev); + + ugeth_vdbg("%s: IN", __FUNCTION__); + + ucc_geth_stop(ugeth); + + /* Shutdown the PHY */ + if (ugeth->mii_info->phyinfo->close) + ugeth->mii_info->phyinfo->close(ugeth->mii_info); + + kfree(ugeth->mii_info); + + netif_stop_queue(dev); + + return 0; +} + +struct ethtool_ops ucc_geth_ethtool_ops = { + .get_settings = NULL, + .get_drvinfo = NULL, + .get_regs_len = NULL, + .get_regs = NULL, + .get_link = NULL, + .get_coalesce = NULL, + .set_coalesce = NULL, + .get_ringparam = NULL, + .set_ringparam = NULL, + .get_strings = NULL, + .get_stats_count = NULL, + .get_ethtool_stats = NULL, +}; + +static int ucc_geth_probe(struct device *device) +{ + struct platform_device *pdev = to_platform_device(device); + struct ucc_geth_platform_data *ugeth_pdata; + struct net_device *dev = NULL; + struct ucc_geth_private *ugeth = NULL; + struct ucc_geth_info *ug_info; + int err; + static int mii_mng_configured = 0; + + ugeth_vdbg("%s: IN", __FUNCTION__); + + ugeth_pdata = (struct ucc_geth_platform_data *)pdev->dev.platform_data; + + ug_info = &ugeth_info[pdev->id]; + ug_info->uf_info.ucc_num = pdev->id; + ug_info->uf_info.rx_clock = ugeth_pdata->rx_clock; + ug_info->uf_info.tx_clock = ugeth_pdata->tx_clock; + ug_info->uf_info.regs = ugeth_pdata->phy_reg_addr; + ug_info->uf_info.irq = platform_get_irq(pdev, 0); + ug_info->phy_address = ugeth_pdata->phy_id; + ug_info->enet_interface = ugeth_pdata->phy_interface; + ug_info->board_flags = ugeth_pdata->board_flags; + ug_info->phy_interrupt = ugeth_pdata->phy_interrupt; + + printk(KERN_INFO "ucc_geth: UCC%1d at 0x%8x (irq = %d) \n", + ug_info->uf_info.ucc_num + 1, ug_info->uf_info.regs, + ug_info->uf_info.irq); + + if (ug_info == NULL) { + ugeth_err("%s: [%d] Missing additional data!", __FUNCTION__, + pdev->id); + return -ENODEV; + } + + if (!mii_mng_configured) { + ucc_set_qe_mux_mii_mng(ug_info->uf_info.ucc_num); + mii_mng_configured = 1; + } + + /* Create an ethernet device instance */ + dev = alloc_etherdev(sizeof(*ugeth)); + + if (dev == NULL) + return -ENOMEM; + + ugeth = netdev_priv(dev); + spin_lock_init(&ugeth->lock); + + dev_set_drvdata(device, dev); + + /* Set the dev->base_addr to the gfar reg region */ + dev->base_addr = (unsigned long)(ug_info->uf_info.regs); + + SET_MODULE_OWNER(dev); + SET_NETDEV_DEV(dev, device); + + /* Fill in the dev structure */ + dev->open = ucc_geth_open; + dev->hard_start_xmit = ucc_geth_start_xmit; + dev->tx_timeout = ucc_geth_timeout; + dev->watchdog_timeo = TX_TIMEOUT; +#ifdef CONFIG_UGETH_NAPI + dev->poll = ucc_geth_poll; + dev->weight = UCC_GETH_DEV_WEIGHT; +#endif /* CONFIG_UGETH_NAPI */ + dev->stop = ucc_geth_close; + dev->get_stats = ucc_geth_get_stats; +// dev->change_mtu = ucc_geth_change_mtu; + dev->mtu = 1500; + dev->set_multicast_list = ucc_geth_set_multi; + dev->ethtool_ops = &ucc_geth_ethtool_ops; + + err = register_netdev(dev); + if (err) { + ugeth_err("%s: Cannot register net device, aborting.", + dev->name); + free_netdev(dev); + return err; + } + + ugeth->ug_info = ug_info; + ugeth->dev = dev; + memcpy(dev->dev_addr, ugeth_pdata->mac_addr, 6); + + return 0; +} + +static int ucc_geth_remove(struct device *device) +{ + struct net_device *dev = dev_get_drvdata(device); + struct ucc_geth_private *ugeth = netdev_priv(dev); + + dev_set_drvdata(device, NULL); + ucc_geth_memclean(ugeth); + free_netdev(dev); + + return 0; +} + +/* Structure for a device driver */ +static struct device_driver ucc_geth_driver = { + .name = DRV_NAME, + .bus = &platform_bus_type, + .probe = ucc_geth_probe, + .remove = ucc_geth_remove, +}; + +static int __init ucc_geth_init(void) +{ + int i; + printk(KERN_INFO "ucc_geth: " DRV_DESC "\n"); + for (i = 0; i < 8; i++) + memcpy(&(ugeth_info[i]), &ugeth_primary_info, + sizeof(ugeth_primary_info)); + + return driver_register(&ucc_geth_driver); +} + +static void __exit ucc_geth_exit(void) +{ + driver_unregister(&ucc_geth_driver); +} + +module_init(ucc_geth_init); +module_exit(ucc_geth_exit); + +MODULE_AUTHOR("Freescale Semiconductor, Inc"); +MODULE_DESCRIPTION(DRV_DESC); +MODULE_LICENSE("GPL"); diff --git a/drivers/net/ucc_geth.h b/drivers/net/ucc_geth.h new file mode 100644 index 000000000000..005965f5dd9b --- /dev/null +++ b/drivers/net/ucc_geth.h @@ -0,0 +1,1339 @@ +/* + * Copyright (C) Freescale Semicondutor, Inc. 2006. All rights reserved. + * + * Author: Shlomi Gridish + * + * Description: + * Internal header file for UCC Gigabit Ethernet unit routines. + * + * Changelog: + * Jun 28, 2006 Li Yang + * - Rearrange code and style fixes + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ +#ifndef __UCC_GETH_H__ +#define __UCC_GETH_H__ + +#include +#include +#include + +#include +#include + +#include +#include + +#define NUM_TX_QUEUES 8 +#define NUM_RX_QUEUES 8 +#define NUM_BDS_IN_PREFETCHED_BDS 4 +#define TX_IP_OFFSET_ENTRY_MAX 8 +#define NUM_OF_PADDRS 4 +#define ENET_INIT_PARAM_MAX_ENTRIES_RX 9 +#define ENET_INIT_PARAM_MAX_ENTRIES_TX 8 + +typedef struct ucc_mii_mng { + u32 miimcfg; /* MII management configuration reg */ + u32 miimcom; /* MII management command reg */ + u32 miimadd; /* MII management address reg */ + u32 miimcon; /* MII management control reg */ + u32 miimstat; /* MII management status reg */ + u32 miimind; /* MII management indication reg */ +} __attribute__ ((packed)) ucc_mii_mng_t; + +typedef struct ucc_geth { + ucc_fast_t uccf; + + u32 maccfg1; /* mac configuration reg. 1 */ + u32 maccfg2; /* mac configuration reg. 2 */ + u32 ipgifg; /* interframe gap reg. */ + u32 hafdup; /* half-duplex reg. */ + u8 res1[0x10]; + ucc_mii_mng_t miimng; /* MII management structure */ + u32 ifctl; /* interface control reg */ + u32 ifstat; /* interface statux reg */ + u32 macstnaddr1; /* mac station address part 1 reg */ + u32 macstnaddr2; /* mac station address part 2 reg */ + u8 res2[0x8]; + u32 uempr; /* UCC Ethernet Mac parameter reg */ + u32 utbipar; /* UCC tbi address reg */ + u16 uescr; /* UCC Ethernet statistics control reg */ + u8 res3[0x180 - 0x15A]; + u32 tx64; /* Total number of frames (including bad + frames) transmitted that were exactly of the + minimal length (64 for un tagged, 68 for + tagged, or with length exactly equal to the + parameter MINLength */ + u32 tx127; /* Total number of frames (including bad + frames) transmitted that were between + MINLength (Including FCS length==4) and 127 + octets */ + u32 tx255; /* Total number of frames (including bad + frames) transmitted that were between 128 + (Including FCS length==4) and 255 octets */ + u32 rx64; /* Total number of frames received including + bad frames that were exactly of the mninimal + length (64 bytes) */ + u32 rx127; /* Total number of frames (including bad + frames) received that were between MINLength + (Including FCS length==4) and 127 octets */ + u32 rx255; /* Total number of frames (including bad + frames) received that were between 128 + (Including FCS length==4) and 255 octets */ + u32 txok; /* Total number of octets residing in frames + that where involved in succesfull + transmission */ + u16 txcf; /* Total number of PAUSE control frames + transmitted by this MAC */ + u8 res4[0x2]; + u32 tmca; /* Total number of frames that were transmitted + succesfully with the group address bit set + that are not broadcast frames */ + u32 tbca; /* Total number of frames transmitted + succesfully that had destination address + field equal to the broadcast address */ + u32 rxfok; /* Total number of frames received OK */ + u32 rxbok; /* Total number of octets received OK */ + u32 rbyt; /* Total number of octets received including + octets in bad frames. Must be implemented in + HW because it includes octets in frames that + never even reach the UCC */ + u32 rmca; /* Total number of frames that were received + succesfully with the group address bit set + that are not broadcast frames */ + u32 rbca; /* Total number of frames received succesfully + that had destination address equal to the + broadcast address */ + u32 scar; /* Statistics carry register */ + u32 scam; /* Statistics caryy mask register */ + u8 res5[0x200 - 0x1c4]; +} __attribute__ ((packed)) ucc_geth_t; + +/* UCC GETH TEMODR Register */ +#define TEMODER_TX_RMON_STATISTICS_ENABLE 0x0100 /* enable Tx statistics + */ +#define TEMODER_SCHEDULER_ENABLE 0x2000 /* enable scheduler */ +#define TEMODER_IP_CHECKSUM_GENERATE 0x0400 /* generate IPv4 + checksums */ +#define TEMODER_PERFORMANCE_OPTIMIZATION_MODE1 0x0200 /* enable performance + optimization + enhancement (mode1) */ +#define TEMODER_RMON_STATISTICS 0x0100 /* enable tx statistics + */ +#define TEMODER_NUM_OF_QUEUES_SHIFT (15-15) /* Number of queues << + shift */ + +/* UCC GETH TEMODR Register */ +#define REMODER_RX_RMON_STATISTICS_ENABLE 0x00001000 /* enable Rx + statistics */ +#define REMODER_RX_EXTENDED_FEATURES 0x80000000 /* enable + extended + features */ +#define REMODER_VLAN_OPERATION_TAGGED_SHIFT (31-9 ) /* vlan operation + tagged << shift */ +#define REMODER_VLAN_OPERATION_NON_TAGGED_SHIFT (31-10) /* vlan operation non + tagged << shift */ +#define REMODER_RX_QOS_MODE_SHIFT (31-15) /* rx QoS mode << shift + */ +#define REMODER_RMON_STATISTICS 0x00001000 /* enable rx + statistics */ +#define REMODER_RX_EXTENDED_FILTERING 0x00000800 /* extended + filtering + vs. + mpc82xx-like + filtering */ +#define REMODER_NUM_OF_QUEUES_SHIFT (31-23) /* Number of queues << + shift */ +#define REMODER_DYNAMIC_MAX_FRAME_LENGTH 0x00000008 /* enable + dynamic max + frame length + */ +#define REMODER_DYNAMIC_MIN_FRAME_LENGTH 0x00000004 /* enable + dynamic min + frame length + */ +#define REMODER_IP_CHECKSUM_CHECK 0x00000002 /* check IPv4 + checksums */ +#define REMODER_IP_ADDRESS_ALIGNMENT 0x00000001 /* align ip + address to + 4-byte + boundary */ + +/* UCC GETH Event Register */ +#define UCCE_MPD 0x80000000 /* Magic packet + detection */ +#define UCCE_SCAR 0x40000000 +#define UCCE_GRA 0x20000000 /* Tx graceful + stop + complete */ +#define UCCE_CBPR 0x10000000 +#define UCCE_BSY 0x08000000 +#define UCCE_RXC 0x04000000 +#define UCCE_TXC 0x02000000 +#define UCCE_TXE 0x01000000 +#define UCCE_TXB7 0x00800000 +#define UCCE_TXB6 0x00400000 +#define UCCE_TXB5 0x00200000 +#define UCCE_TXB4 0x00100000 +#define UCCE_TXB3 0x00080000 +#define UCCE_TXB2 0x00040000 +#define UCCE_TXB1 0x00020000 +#define UCCE_TXB0 0x00010000 +#define UCCE_RXB7 0x00008000 +#define UCCE_RXB6 0x00004000 +#define UCCE_RXB5 0x00002000 +#define UCCE_RXB4 0x00001000 +#define UCCE_RXB3 0x00000800 +#define UCCE_RXB2 0x00000400 +#define UCCE_RXB1 0x00000200 +#define UCCE_RXB0 0x00000100 +#define UCCE_RXF7 0x00000080 +#define UCCE_RXF6 0x00000040 +#define UCCE_RXF5 0x00000020 +#define UCCE_RXF4 0x00000010 +#define UCCE_RXF3 0x00000008 +#define UCCE_RXF2 0x00000004 +#define UCCE_RXF1 0x00000002 +#define UCCE_RXF0 0x00000001 + +#define UCCE_RXBF_SINGLE_MASK (UCCE_RXF0) +#define UCCE_TXBF_SINGLE_MASK (UCCE_TXB0) + +#define UCCE_TXB (UCCE_TXB7 | UCCE_TXB6 | UCCE_TXB5 | UCCE_TXB4 |\ + UCCE_TXB3 | UCCE_TXB2 | UCCE_TXB1 | UCCE_TXB0) +#define UCCE_RXB (UCCE_RXB7 | UCCE_RXB6 | UCCE_RXB5 | UCCE_RXB4 |\ + UCCE_RXB3 | UCCE_RXB2 | UCCE_RXB1 | UCCE_RXB0) +#define UCCE_RXF (UCCE_RXF7 | UCCE_RXF6 | UCCE_RXF5 | UCCE_RXF4 |\ + UCCE_RXF3 | UCCE_RXF2 | UCCE_RXF1 | UCCE_RXF0) +#define UCCE_OTHER (UCCE_SCAR | UCCE_GRA | UCCE_CBPR | UCCE_BSY |\ + UCCE_RXC | UCCE_TXC | UCCE_TXE) + +/* UCC GETH UPSMR (Protocol Specific Mode Register) */ +#define UPSMR_ECM 0x04000000 /* Enable CAM + Miss or + Enable + Filtering + Miss */ +#define UPSMR_HSE 0x02000000 /* Hardware + Statistics + Enable */ +#define UPSMR_PRO 0x00400000 /* Promiscuous*/ +#define UPSMR_CAP 0x00200000 /* CAM polarity + */ +#define UPSMR_RSH 0x00100000 /* Receive + Short Frames + */ +#define UPSMR_RPM 0x00080000 /* Reduced Pin + Mode + interfaces */ +#define UPSMR_R10M 0x00040000 /* RGMII/RMII + 10 Mode */ +#define UPSMR_RLPB 0x00020000 /* RMII + Loopback + Mode */ +#define UPSMR_TBIM 0x00010000 /* Ten-bit + Interface + Mode */ +#define UPSMR_RMM 0x00001000 /* RMII/RGMII + Mode */ +#define UPSMR_CAM 0x00000400 /* CAM Address + Matching */ +#define UPSMR_BRO 0x00000200 /* Broadcast + Address */ +#define UPSMR_RES1 0x00002000 /* Reserved + feild - must + be 1 */ + +/* UCC GETH MACCFG1 (MAC Configuration 1 Register) */ +#define MACCFG1_FLOW_RX 0x00000020 /* Flow Control + Rx */ +#define MACCFG1_FLOW_TX 0x00000010 /* Flow Control + Tx */ +#define MACCFG1_ENABLE_SYNCHED_RX 0x00000008 /* Rx Enable + synchronized + to Rx stream + */ +#define MACCFG1_ENABLE_RX 0x00000004 /* Enable Rx */ +#define MACCFG1_ENABLE_SYNCHED_TX 0x00000002 /* Tx Enable + synchronized + to Tx stream + */ +#define MACCFG1_ENABLE_TX 0x00000001 /* Enable Tx */ + +/* UCC GETH MACCFG2 (MAC Configuration 2 Register) */ +#define MACCFG2_PREL_SHIFT (31 - 19) /* Preamble + Length << + shift */ +#define MACCFG2_PREL_MASK 0x0000f000 /* Preamble + Length mask */ +#define MACCFG2_SRP 0x00000080 /* Soft Receive + Preamble */ +#define MACCFG2_STP 0x00000040 /* Soft + Transmit + Preamble */ +#define MACCFG2_RESERVED_1 0x00000020 /* Reserved - + must be set + to 1 */ +#define MACCFG2_LC 0x00000010 /* Length Check + */ +#define MACCFG2_MPE 0x00000008 /* Magic packet + detect */ +#define MACCFG2_FDX 0x00000001 /* Full Duplex */ +#define MACCFG2_FDX_MASK 0x00000001 /* Full Duplex + mask */ +#define MACCFG2_PAD_CRC 0x00000004 +#define MACCFG2_CRC_EN 0x00000002 +#define MACCFG2_PAD_AND_CRC_MODE_NONE 0x00000000 /* Neither + Padding + short frames + nor CRC */ +#define MACCFG2_PAD_AND_CRC_MODE_CRC_ONLY 0x00000002 /* Append CRC + only */ +#define MACCFG2_PAD_AND_CRC_MODE_PAD_AND_CRC 0x00000004 +#define MACCFG2_INTERFACE_MODE_NIBBLE 0x00000100 /* nibble mode + (MII/RMII/RGMII + 10/100bps) */ +#define MACCFG2_INTERFACE_MODE_BYTE 0x00000200 /* byte mode + (GMII/TBI/RTB/RGMII + 1000bps ) */ +#define MACCFG2_INTERFACE_MODE_MASK 0x00000300 /* mask + covering all + relevant + bits */ + +/* UCC GETH IPGIFG (Inter-frame Gap / Inter-Frame Gap Register) */ +#define IPGIFG_NON_BACK_TO_BACK_IFG_PART1_SHIFT (31 - 7) /* Non + back-to-back + inter frame + gap part 1. + << shift */ +#define IPGIFG_NON_BACK_TO_BACK_IFG_PART2_SHIFT (31 - 15) /* Non + back-to-back + inter frame + gap part 2. + << shift */ +#define IPGIFG_MINIMUM_IFG_ENFORCEMENT_SHIFT (31 - 23) /* Mimimum IFG + Enforcement + << shift */ +#define IPGIFG_BACK_TO_BACK_IFG_SHIFT (31 - 31) /* back-to-back + inter frame + gap << shift + */ +#define IPGIFG_NON_BACK_TO_BACK_IFG_PART1_MAX 127 /* Non back-to-back + inter frame gap part + 1. max val */ +#define IPGIFG_NON_BACK_TO_BACK_IFG_PART2_MAX 127 /* Non back-to-back + inter frame gap part + 2. max val */ +#define IPGIFG_MINIMUM_IFG_ENFORCEMENT_MAX 255 /* Mimimum IFG + Enforcement max val */ +#define IPGIFG_BACK_TO_BACK_IFG_MAX 127 /* back-to-back inter + frame gap max val */ +#define IPGIFG_NBTB_CS_IPG_MASK 0x7F000000 +#define IPGIFG_NBTB_IPG_MASK 0x007F0000 +#define IPGIFG_MIN_IFG_MASK 0x0000FF00 +#define IPGIFG_BTB_IPG_MASK 0x0000007F + +/* UCC GETH HAFDUP (Half Duplex Register) */ +#define HALFDUP_ALT_BEB_TRUNCATION_SHIFT (31 - 11) /* Alternate + Binary + Exponential + Backoff + Truncation + << shift */ +#define HALFDUP_ALT_BEB_TRUNCATION_MAX 0xf /* Alternate Binary + Exponential Backoff + Truncation max val */ +#define HALFDUP_ALT_BEB 0x00080000 /* Alternate + Binary + Exponential + Backoff */ +#define HALFDUP_BACK_PRESSURE_NO_BACKOFF 0x00040000 /* Back + pressure no + backoff */ +#define HALFDUP_NO_BACKOFF 0x00020000 /* No Backoff */ +#define HALFDUP_EXCESSIVE_DEFER 0x00010000 /* Excessive + Defer */ +#define HALFDUP_MAX_RETRANSMISSION_SHIFT (31 - 19) /* Maximum + Retransmission + << shift */ +#define HALFDUP_MAX_RETRANSMISSION_MAX 0xf /* Maximum + Retransmission max + val */ +#define HALFDUP_COLLISION_WINDOW_SHIFT (31 - 31) /* Collision + Window << + shift */ +#define HALFDUP_COLLISION_WINDOW_MAX 0x3f /* Collision Window max + val */ +#define HALFDUP_ALT_BEB_TR_MASK 0x00F00000 +#define HALFDUP_RETRANS_MASK 0x0000F000 +#define HALFDUP_COL_WINDOW_MASK 0x0000003F + +/* UCC GETH UCCS (Ethernet Status Register) */ +#define UCCS_BPR 0x02 /* Back pressure (in + half duplex mode) */ +#define UCCS_PAU 0x02 /* Pause state (in full + duplex mode) */ +#define UCCS_MPD 0x01 /* Magic Packet + Detected */ + +/* UCC GETH MIIMCFG (MII Management Configuration Register) */ +#define MIIMCFG_RESET_MANAGEMENT 0x80000000 /* Reset + management */ +#define MIIMCFG_NO_PREAMBLE 0x00000010 /* Preamble + suppress */ +#define MIIMCFG_CLOCK_DIVIDE_SHIFT (31 - 31) /* clock divide + << shift */ +#define MIIMCFG_CLOCK_DIVIDE_MAX 0xf /* clock divide max val + */ +#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_2 0x00000000 /* divide by 2 */ +#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_4 0x00000001 /* divide by 4 */ +#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_6 0x00000002 /* divide by 6 */ +#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_8 0x00000003 /* divide by 8 */ +#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_10 0x00000004 /* divide by 10 + */ +#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_14 0x00000005 /* divide by 14 + */ +#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_16 0x00000008 /* divide by 16 + */ +#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_20 0x00000006 /* divide by 20 + */ +#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_28 0x00000007 /* divide by 28 + */ +#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_32 0x00000009 /* divide by 32 + */ +#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_48 0x0000000a /* divide by 48 + */ +#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_64 0x0000000b /* divide by 64 + */ +#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_80 0x0000000c /* divide by 80 + */ +#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_112 0x0000000d /* divide by + 112 */ +#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_160 0x0000000e /* divide by + 160 */ +#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_224 0x0000000f /* divide by + 224 */ + +/* UCC GETH MIIMCOM (MII Management Command Register) */ +#define MIIMCOM_SCAN_CYCLE 0x00000002 /* Scan cycle */ +#define MIIMCOM_READ_CYCLE 0x00000001 /* Read cycle */ + +/* UCC GETH MIIMADD (MII Management Address Register) */ +#define MIIMADD_PHY_ADDRESS_SHIFT (31 - 23) /* PHY Address + << shift */ +#define MIIMADD_PHY_REGISTER_SHIFT (31 - 31) /* PHY Register + << shift */ + +/* UCC GETH MIIMCON (MII Management Control Register) */ +#define MIIMCON_PHY_CONTROL_SHIFT (31 - 31) /* PHY Control + << shift */ +#define MIIMCON_PHY_STATUS_SHIFT (31 - 31) /* PHY Status + << shift */ + +/* UCC GETH MIIMIND (MII Management Indicator Register) */ +#define MIIMIND_NOT_VALID 0x00000004 /* Not valid */ +#define MIIMIND_SCAN 0x00000002 /* Scan in + progress */ +#define MIIMIND_BUSY 0x00000001 + +/* UCC GETH IFSTAT (Interface Status Register) */ +#define IFSTAT_EXCESS_DEFER 0x00000200 /* Excessive + transmission + defer */ + +/* UCC GETH MACSTNADDR1 (Station Address Part 1 Register) */ +#define MACSTNADDR1_OCTET_6_SHIFT (31 - 7) /* Station + address 6th + octet << + shift */ +#define MACSTNADDR1_OCTET_5_SHIFT (31 - 15) /* Station + address 5th + octet << + shift */ +#define MACSTNADDR1_OCTET_4_SHIFT (31 - 23) /* Station + address 4th + octet << + shift */ +#define MACSTNADDR1_OCTET_3_SHIFT (31 - 31) /* Station + address 3rd + octet << + shift */ + +/* UCC GETH MACSTNADDR2 (Station Address Part 2 Register) */ +#define MACSTNADDR2_OCTET_2_SHIFT (31 - 7) /* Station + address 2nd + octet << + shift */ +#define MACSTNADDR2_OCTET_1_SHIFT (31 - 15) /* Station + address 1st + octet << + shift */ + +/* UCC GETH UEMPR (Ethernet Mac Parameter Register) */ +#define UEMPR_PAUSE_TIME_VALUE_SHIFT (31 - 15) /* Pause time + value << + shift */ +#define UEMPR_EXTENDED_PAUSE_TIME_VALUE_SHIFT (31 - 31) /* Extended + pause time + value << + shift */ + +/* UCC GETH UTBIPAR (Ten Bit Interface Physical Address Register) */ +#define UTBIPAR_PHY_ADDRESS_SHIFT (31 - 31) /* Phy address + << shift */ +#define UTBIPAR_PHY_ADDRESS_MASK 0x0000001f /* Phy address + mask */ + +/* UCC GETH UESCR (Ethernet Statistics Control Register) */ +#define UESCR_AUTOZ 0x8000 /* Automatically zero + addressed + statistical counter + values */ +#define UESCR_CLRCNT 0x4000 /* Clear all statistics + counters */ +#define UESCR_MAXCOV_SHIFT (15 - 7) /* Max + Coalescing + Value << + shift */ +#define UESCR_SCOV_SHIFT (15 - 15) /* Status + Coalescing + Value << + shift */ + +/* UCC GETH UDSR (Data Synchronization Register) */ +#define UDSR_MAGIC 0x067E + +typedef struct ucc_geth_thread_data_tx { + u8 res0[104]; +} __attribute__ ((packed)) ucc_geth_thread_data_tx_t; + +typedef struct ucc_geth_thread_data_rx { + u8 res0[40]; +} __attribute__ ((packed)) ucc_geth_thread_data_rx_t; + +/* Send Queue Queue-Descriptor */ +typedef struct ucc_geth_send_queue_qd { + u32 bd_ring_base; /* pointer to BD ring base address */ + u8 res0[0x8]; + u32 last_bd_completed_address;/* initialize to last entry in BD ring */ + u8 res1[0x30]; +} __attribute__ ((packed)) ucc_geth_send_queue_qd_t; + +typedef struct ucc_geth_send_queue_mem_region { + ucc_geth_send_queue_qd_t sqqd[NUM_TX_QUEUES]; +} __attribute__ ((packed)) ucc_geth_send_queue_mem_region_t; + +typedef struct ucc_geth_thread_tx_pram { + u8 res0[64]; +} __attribute__ ((packed)) ucc_geth_thread_tx_pram_t; + +typedef struct ucc_geth_thread_rx_pram { + u8 res0[128]; +} __attribute__ ((packed)) ucc_geth_thread_rx_pram_t; + +#define THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING 64 +#define THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_8 64 +#define THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_16 96 + +typedef struct ucc_geth_scheduler { + u16 cpucount0; /* CPU packet counter */ + u16 cpucount1; /* CPU packet counter */ + u16 cecount0; /* QE packet counter */ + u16 cecount1; /* QE packet counter */ + u16 cpucount2; /* CPU packet counter */ + u16 cpucount3; /* CPU packet counter */ + u16 cecount2; /* QE packet counter */ + u16 cecount3; /* QE packet counter */ + u16 cpucount4; /* CPU packet counter */ + u16 cpucount5; /* CPU packet counter */ + u16 cecount4; /* QE packet counter */ + u16 cecount5; /* QE packet counter */ + u16 cpucount6; /* CPU packet counter */ + u16 cpucount7; /* CPU packet counter */ + u16 cecount6; /* QE packet counter */ + u16 cecount7; /* QE packet counter */ + u32 weightstatus[NUM_TX_QUEUES]; /* accumulated weight factor */ + u32 rtsrshadow; /* temporary variable handled by QE */ + u32 time; /* temporary variable handled by QE */ + u32 ttl; /* temporary variable handled by QE */ + u32 mblinterval; /* max burst length interval */ + u16 nortsrbytetime; /* normalized value of byte time in tsr units */ + u8 fracsiz; /* radix 2 log value of denom. of + NorTSRByteTime */ + u8 res0[1]; + u8 strictpriorityq; /* Strict Priority Mask register */ + u8 txasap; /* Transmit ASAP register */ + u8 extrabw; /* Extra BandWidth register */ + u8 oldwfqmask; /* temporary variable handled by QE */ + u8 weightfactor[NUM_TX_QUEUES]; + /**< weight factor for queues */ + u32 minw; /* temporary variable handled by QE */ + u8 res1[0x70 - 0x64]; +} __attribute__ ((packed)) ucc_geth_scheduler_t; + +typedef struct ucc_geth_tx_firmware_statistics_pram { + u32 sicoltx; /* single collision */ + u32 mulcoltx; /* multiple collision */ + u32 latecoltxfr; /* late collision */ + u32 frabortduecol; /* frames aborted due to transmit collision */ + u32 frlostinmactxer; /* frames lost due to internal MAC error + transmission that are not counted on any + other counter */ + u32 carriersenseertx; /* carrier sense error */ + u32 frtxok; /* frames transmitted OK */ + u32 txfrexcessivedefer; /* frames with defferal time greater than + specified threshold */ + u32 txpkts256; /* total packets (including bad) between 256 + and 511 octets */ + u32 txpkts512; /* total packets (including bad) between 512 + and 1023 octets */ + u32 txpkts1024; /* total packets (including bad) between 1024 + and 1518 octets */ + u32 txpktsjumbo; /* total packets (including bad) between 1024 + and MAXLength octets */ +} __attribute__ ((packed)) ucc_geth_tx_firmware_statistics_pram_t; + +typedef struct ucc_geth_rx_firmware_statistics_pram { + u32 frrxfcser; /* frames with crc error */ + u32 fraligner; /* frames with alignment error */ + u32 inrangelenrxer; /* in range length error */ + u32 outrangelenrxer; /* out of range length error */ + u32 frtoolong; /* frame too long */ + u32 runt; /* runt */ + u32 verylongevent; /* very long event */ + u32 symbolerror; /* symbol error */ + u32 dropbsy; /* drop because of BD not ready */ + u8 res0[0x8]; + u32 mismatchdrop; /* drop because of MAC filtering (e.g. address + or type mismatch) */ + u32 underpkts; /* total frames less than 64 octets */ + u32 pkts256; /* total frames (including bad) between 256 and + 511 octets */ + u32 pkts512; /* total frames (including bad) between 512 and + 1023 octets */ + u32 pkts1024; /* total frames (including bad) between 1024 + and 1518 octets */ + u32 pktsjumbo; /* total frames (including bad) between 1024 + and MAXLength octets */ + u32 frlossinmacer; /* frames lost because of internal MAC error + that is not counted in any other counter */ + u32 pausefr; /* pause frames */ + u8 res1[0x4]; + u32 removevlan; /* total frames that had their VLAN tag removed + */ + u32 replacevlan; /* total frames that had their VLAN tag + replaced */ + u32 insertvlan; /* total frames that had their VLAN tag + inserted */ +} __attribute__ ((packed)) ucc_geth_rx_firmware_statistics_pram_t; + +typedef struct ucc_geth_rx_interrupt_coalescing_entry { + u32 interruptcoalescingmaxvalue; /* interrupt coalescing max + value */ + u32 interruptcoalescingcounter; /* interrupt coalescing counter, + initialize to + interruptcoalescingmaxvalue */ +} __attribute__ ((packed)) ucc_geth_rx_interrupt_coalescing_entry_t; + +typedef struct ucc_geth_rx_interrupt_coalescing_table { + ucc_geth_rx_interrupt_coalescing_entry_t coalescingentry[NUM_RX_QUEUES]; + /**< interrupt coalescing entry */ +} __attribute__ ((packed)) ucc_geth_rx_interrupt_coalescing_table_t; + +typedef struct ucc_geth_rx_prefetched_bds { + qe_bd_t bd[NUM_BDS_IN_PREFETCHED_BDS]; /* prefetched bd */ +} __attribute__ ((packed)) ucc_geth_rx_prefetched_bds_t; + +typedef struct ucc_geth_rx_bd_queues_entry { + u32 bdbaseptr; /* BD base pointer */ + u32 bdptr; /* BD pointer */ + u32 externalbdbaseptr; /* external BD base pointer */ + u32 externalbdptr; /* external BD pointer */ +} __attribute__ ((packed)) ucc_geth_rx_bd_queues_entry_t; + +typedef struct ucc_geth_tx_global_pram { + u16 temoder; + u8 res0[0x38 - 0x02]; + u32 sqptr; /* a base pointer to send queue memory region */ + u32 schedulerbasepointer; /* a base pointer to scheduler memory + region */ + u32 txrmonbaseptr; /* base pointer to Tx RMON statistics counter */ + u32 tstate; /* tx internal state. High byte contains + function code */ + u8 iphoffset[TX_IP_OFFSET_ENTRY_MAX]; + u32 vtagtable[0x8]; /* 8 4-byte VLAN tags */ + u32 tqptr; /* a base pointer to the Tx Queues Memory + Region */ + u8 res2[0x80 - 0x74]; +} __attribute__ ((packed)) ucc_geth_tx_global_pram_t; + +/* structure representing Extended Filtering Global Parameters in PRAM */ +typedef struct ucc_geth_exf_global_pram { + u32 l2pcdptr; /* individual address filter, high */ + u8 res0[0x10 - 0x04]; +} __attribute__ ((packed)) ucc_geth_exf_global_pram_t; + +typedef struct ucc_geth_rx_global_pram { + u32 remoder; /* ethernet mode reg. */ + u32 rqptr; /* base pointer to the Rx Queues Memory Region*/ + u32 res0[0x1]; + u8 res1[0x20 - 0xC]; + u16 typeorlen; /* cutoff point less than which, type/len field + is considered length */ + u8 res2[0x1]; + u8 rxgstpack; /* acknowledgement on GRACEFUL STOP RX command*/ + u32 rxrmonbaseptr; /* base pointer to Rx RMON statistics counter */ + u8 res3[0x30 - 0x28]; + u32 intcoalescingptr; /* Interrupt coalescing table pointer */ + u8 res4[0x36 - 0x34]; + u8 rstate; /* rx internal state. High byte contains + function code */ + u8 res5[0x46 - 0x37]; + u16 mrblr; /* max receive buffer length reg. */ + u32 rbdqptr; /* base pointer to RxBD parameter table + description */ + u16 mflr; /* max frame length reg. */ + u16 minflr; /* min frame length reg. */ + u16 maxd1; /* max dma1 length reg. */ + u16 maxd2; /* max dma2 length reg. */ + u32 ecamptr; /* external CAM address */ + u32 l2qt; /* VLAN priority mapping table. */ + u32 l3qt[0x8]; /* IP priority mapping table. */ + u16 vlantype; /* vlan type */ + u16 vlantci; /* default vlan tci */ + u8 addressfiltering[64]; /* address filtering data structure */ + u32 exfGlobalParam; /* base address for extended filtering global + parameters */ + u8 res6[0x100 - 0xC4]; /* Initialize to zero */ +} __attribute__ ((packed)) ucc_geth_rx_global_pram_t; + +#define GRACEFUL_STOP_ACKNOWLEDGE_RX 0x01 + +/* structure representing InitEnet command */ +typedef struct ucc_geth_init_pram { + u8 resinit1; + u8 resinit2; + u8 resinit3; + u8 resinit4; + u16 resinit5; + u8 res1[0x1]; + u8 largestexternallookupkeysize; + u32 rgftgfrxglobal; + u32 rxthread[ENET_INIT_PARAM_MAX_ENTRIES_RX]; /* rx threads */ + u8 res2[0x38 - 0x30]; + u32 txglobal; /* tx global */ + u32 txthread[ENET_INIT_PARAM_MAX_ENTRIES_TX]; /* tx threads */ + u8 res3[0x1]; +} __attribute__ ((packed)) ucc_geth_init_pram_t; + +#define ENET_INIT_PARAM_RGF_SHIFT (32 - 4) +#define ENET_INIT_PARAM_TGF_SHIFT (32 - 8) + +#define ENET_INIT_PARAM_RISC_MASK 0x0000003f +#define ENET_INIT_PARAM_PTR_MASK 0x00ffffc0 +#define ENET_INIT_PARAM_SNUM_MASK 0xff000000 +#define ENET_INIT_PARAM_SNUM_SHIFT 24 + +#define ENET_INIT_PARAM_MAGIC_RES_INIT1 0x06 +#define ENET_INIT_PARAM_MAGIC_RES_INIT2 0x30 +#define ENET_INIT_PARAM_MAGIC_RES_INIT3 0xff +#define ENET_INIT_PARAM_MAGIC_RES_INIT4 0x00 +#define ENET_INIT_PARAM_MAGIC_RES_INIT5 0x0400 + +/* structure representing 82xx Address Filtering Enet Address in PRAM */ +typedef struct ucc_geth_82xx_enet_address { + u8 res1[0x2]; + u16 h; /* address (MSB) */ + u16 m; /* address */ + u16 l; /* address (LSB) */ +} __attribute__ ((packed)) ucc_geth_82xx_enet_address_t; + +/* structure representing 82xx Address Filtering PRAM */ +typedef struct ucc_geth_82xx_address_filtering_pram { + u32 iaddr_h; /* individual address filter, high */ + u32 iaddr_l; /* individual address filter, low */ + u32 gaddr_h; /* group address filter, high */ + u32 gaddr_l; /* group address filter, low */ + ucc_geth_82xx_enet_address_t taddr; + ucc_geth_82xx_enet_address_t paddr[NUM_OF_PADDRS]; + u8 res0[0x40 - 0x38]; +} __attribute__ ((packed)) ucc_geth_82xx_address_filtering_pram_t; + +/* GETH Tx firmware statistics structure, used when calling + UCC_GETH_GetStatistics. */ +typedef struct ucc_geth_tx_firmware_statistics { + u32 sicoltx; /* single collision */ + u32 mulcoltx; /* multiple collision */ + u32 latecoltxfr; /* late collision */ + u32 frabortduecol; /* frames aborted due to transmit collision */ + u32 frlostinmactxer; /* frames lost due to internal MAC error + transmission that are not counted on any + other counter */ + u32 carriersenseertx; /* carrier sense error */ + u32 frtxok; /* frames transmitted OK */ + u32 txfrexcessivedefer; /* frames with defferal time greater than + specified threshold */ + u32 txpkts256; /* total packets (including bad) between 256 + and 511 octets */ + u32 txpkts512; /* total packets (including bad) between 512 + and 1023 octets */ + u32 txpkts1024; /* total packets (including bad) between 1024 + and 1518 octets */ + u32 txpktsjumbo; /* total packets (including bad) between 1024 + and MAXLength octets */ +} __attribute__ ((packed)) ucc_geth_tx_firmware_statistics_t; + +/* GETH Rx firmware statistics structure, used when calling + UCC_GETH_GetStatistics. */ +typedef struct ucc_geth_rx_firmware_statistics { + u32 frrxfcser; /* frames with crc error */ + u32 fraligner; /* frames with alignment error */ + u32 inrangelenrxer; /* in range length error */ + u32 outrangelenrxer; /* out of range length error */ + u32 frtoolong; /* frame too long */ + u32 runt; /* runt */ + u32 verylongevent; /* very long event */ + u32 symbolerror; /* symbol error */ + u32 dropbsy; /* drop because of BD not ready */ + u8 res0[0x8]; + u32 mismatchdrop; /* drop because of MAC filtering (e.g. address + or type mismatch) */ + u32 underpkts; /* total frames less than 64 octets */ + u32 pkts256; /* total frames (including bad) between 256 and + 511 octets */ + u32 pkts512; /* total frames (including bad) between 512 and + 1023 octets */ + u32 pkts1024; /* total frames (including bad) between 1024 + and 1518 octets */ + u32 pktsjumbo; /* total frames (including bad) between 1024 + and MAXLength octets */ + u32 frlossinmacer; /* frames lost because of internal MAC error + that is not counted in any other counter */ + u32 pausefr; /* pause frames */ + u8 res1[0x4]; + u32 removevlan; /* total frames that had their VLAN tag removed + */ + u32 replacevlan; /* total frames that had their VLAN tag + replaced */ + u32 insertvlan; /* total frames that had their VLAN tag + inserted */ +} __attribute__ ((packed)) ucc_geth_rx_firmware_statistics_t; + +/* GETH hardware statistics structure, used when calling + UCC_GETH_GetStatistics. */ +typedef struct ucc_geth_hardware_statistics { + u32 tx64; /* Total number of frames (including bad + frames) transmitted that were exactly of the + minimal length (64 for un tagged, 68 for + tagged, or with length exactly equal to the + parameter MINLength */ + u32 tx127; /* Total number of frames (including bad + frames) transmitted that were between + MINLength (Including FCS length==4) and 127 + octets */ + u32 tx255; /* Total number of frames (including bad + frames) transmitted that were between 128 + (Including FCS length==4) and 255 octets */ + u32 rx64; /* Total number of frames received including + bad frames that were exactly of the mninimal + length (64 bytes) */ + u32 rx127; /* Total number of frames (including bad + frames) received that were between MINLength + (Including FCS length==4) and 127 octets */ + u32 rx255; /* Total number of frames (including bad + frames) received that were between 128 + (Including FCS length==4) and 255 octets */ + u32 txok; /* Total number of octets residing in frames + that where involved in succesfull + transmission */ + u16 txcf; /* Total number of PAUSE control frames + transmitted by this MAC */ + u32 tmca; /* Total number of frames that were transmitted + succesfully with the group address bit set + that are not broadcast frames */ + u32 tbca; /* Total number of frames transmitted + succesfully that had destination address + field equal to the broadcast address */ + u32 rxfok; /* Total number of frames received OK */ + u32 rxbok; /* Total number of octets received OK */ + u32 rbyt; /* Total number of octets received including + octets in bad frames. Must be implemented in + HW because it includes octets in frames that + never even reach the UCC */ + u32 rmca; /* Total number of frames that were received + succesfully with the group address bit set + that are not broadcast frames */ + u32 rbca; /* Total number of frames received succesfully + that had destination address equal to the + broadcast address */ +} __attribute__ ((packed)) ucc_geth_hardware_statistics_t; + +/* UCC GETH Tx errors returned via TxConf callback */ +#define TX_ERRORS_DEF 0x0200 +#define TX_ERRORS_EXDEF 0x0100 +#define TX_ERRORS_LC 0x0080 +#define TX_ERRORS_RL 0x0040 +#define TX_ERRORS_RC_MASK 0x003C +#define TX_ERRORS_RC_SHIFT 2 +#define TX_ERRORS_UN 0x0002 +#define TX_ERRORS_CSL 0x0001 + +/* UCC GETH Rx errors returned via RxStore callback */ +#define RX_ERRORS_CMR 0x0200 +#define RX_ERRORS_M 0x0100 +#define RX_ERRORS_BC 0x0080 +#define RX_ERRORS_MC 0x0040 + +/* Transmit BD. These are in addition to values defined in uccf. */ +#define T_VID 0x003c0000 /* insert VLAN id index mask. */ +#define T_DEF (((u32) TX_ERRORS_DEF ) << 16) +#define T_EXDEF (((u32) TX_ERRORS_EXDEF ) << 16) +#define T_LC (((u32) TX_ERRORS_LC ) << 16) +#define T_RL (((u32) TX_ERRORS_RL ) << 16) +#define T_RC_MASK (((u32) TX_ERRORS_RC_MASK ) << 16) +#define T_UN (((u32) TX_ERRORS_UN ) << 16) +#define T_CSL (((u32) TX_ERRORS_CSL ) << 16) +#define T_ERRORS_REPORT (T_DEF | T_EXDEF | T_LC | T_RL | T_RC_MASK \ + | T_UN | T_CSL) /* transmit errors to report */ + +/* Receive BD. These are in addition to values defined in uccf. */ +#define R_LG 0x00200000 /* Frame length violation. */ +#define R_NO 0x00100000 /* Non-octet aligned frame. */ +#define R_SH 0x00080000 /* Short frame. */ +#define R_CR 0x00040000 /* CRC error. */ +#define R_OV 0x00020000 /* Overrun. */ +#define R_IPCH 0x00010000 /* IP checksum check failed. */ +#define R_CMR (((u32) RX_ERRORS_CMR ) << 16) +#define R_M (((u32) RX_ERRORS_M ) << 16) +#define R_BC (((u32) RX_ERRORS_BC ) << 16) +#define R_MC (((u32) RX_ERRORS_MC ) << 16) +#define R_ERRORS_REPORT (R_CMR | R_M | R_BC | R_MC) /* receive errors to + report */ +#define R_ERRORS_FATAL (R_LG | R_NO | R_SH | R_CR | \ + R_OV | R_IPCH) /* receive errors to discard */ + +/* Alignments */ +#define UCC_GETH_RX_GLOBAL_PRAM_ALIGNMENT 256 +#define UCC_GETH_TX_GLOBAL_PRAM_ALIGNMENT 128 +#define UCC_GETH_THREAD_RX_PRAM_ALIGNMENT 128 +#define UCC_GETH_THREAD_TX_PRAM_ALIGNMENT 64 +#define UCC_GETH_THREAD_DATA_ALIGNMENT 256 /* spec gives values + based on num of + threads, but always + using the maximum is + easier */ +#define UCC_GETH_SEND_QUEUE_QUEUE_DESCRIPTOR_ALIGNMENT 32 +#define UCC_GETH_SCHEDULER_ALIGNMENT 4 /* This is a guess */ +#define UCC_GETH_TX_STATISTICS_ALIGNMENT 4 /* This is a guess */ +#define UCC_GETH_RX_STATISTICS_ALIGNMENT 4 /* This is a guess */ +#define UCC_GETH_RX_INTERRUPT_COALESCING_ALIGNMENT 4 /* This is a + guess */ +#define UCC_GETH_RX_BD_QUEUES_ALIGNMENT 8 /* This is a guess */ +#define UCC_GETH_RX_PREFETCHED_BDS_ALIGNMENT 128 /* This is a guess */ +#define UCC_GETH_RX_EXTENDED_FILTERING_GLOBAL_PARAMETERS_ALIGNMENT 4 /* This + is a + guess + */ +#define UCC_GETH_RX_BD_RING_ALIGNMENT 32 +#define UCC_GETH_TX_BD_RING_ALIGNMENT 32 +#define UCC_GETH_MRBLR_ALIGNMENT 128 +#define UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT 4 +#define UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT 32 +#define UCC_GETH_RX_DATA_BUF_ALIGNMENT 64 + +#define UCC_GETH_TAD_EF 0x80 +#define UCC_GETH_TAD_V 0x40 +#define UCC_GETH_TAD_REJ 0x20 +#define UCC_GETH_TAD_VTAG_OP_RIGHT_SHIFT 2 +#define UCC_GETH_TAD_VTAG_OP_SHIFT 6 +#define UCC_GETH_TAD_V_NON_VTAG_OP 0x20 +#define UCC_GETH_TAD_RQOS_SHIFT 0 +#define UCC_GETH_TAD_V_PRIORITY_SHIFT 5 +#define UCC_GETH_TAD_CFI 0x10 + +#define UCC_GETH_VLAN_PRIORITY_MAX 8 +#define UCC_GETH_IP_PRIORITY_MAX 64 +#define UCC_GETH_TX_VTAG_TABLE_ENTRY_MAX 8 +#define UCC_GETH_RX_BD_RING_SIZE_MIN 8 +#define UCC_GETH_TX_BD_RING_SIZE_MIN 2 + +#define UCC_GETH_SIZE_OF_BD QE_SIZEOF_BD + +/* Driver definitions */ +#define TX_BD_RING_LEN 0x10 +#define RX_BD_RING_LEN 0x10 +#define UCC_GETH_DEV_WEIGHT TX_BD_RING_LEN + +#define TX_RING_MOD_MASK(size) (size-1) +#define RX_RING_MOD_MASK(size) (size-1) + +#define ENET_NUM_OCTETS_PER_ADDRESS 6 +#define ENET_GROUP_ADDR 0x01 /* Group address mask + for ethernet + addresses */ + +#define TX_TIMEOUT (1*HZ) +#define SKB_ALLOC_TIMEOUT 100000 +#define PHY_INIT_TIMEOUT 100000 +#define PHY_CHANGE_TIME 2 + +/* Fast Ethernet (10/100 Mbps) */ +#define UCC_GETH_URFS_INIT 512 /* Rx virtual FIFO size + */ +#define UCC_GETH_URFET_INIT 256 /* 1/2 urfs */ +#define UCC_GETH_URFSET_INIT 384 /* 3/4 urfs */ +#define UCC_GETH_UTFS_INIT 512 /* Tx virtual FIFO size + */ +#define UCC_GETH_UTFET_INIT 256 /* 1/2 utfs */ +#define UCC_GETH_UTFTT_INIT 128 +/* Gigabit Ethernet (1000 Mbps) */ +#define UCC_GETH_URFS_GIGA_INIT 4096/*2048*/ /* Rx virtual + FIFO size */ +#define UCC_GETH_URFET_GIGA_INIT 2048/*1024*/ /* 1/2 urfs */ +#define UCC_GETH_URFSET_GIGA_INIT 3072/*1536*/ /* 3/4 urfs */ +#define UCC_GETH_UTFS_GIGA_INIT 8192/*2048*/ /* Tx virtual + FIFO size */ +#define UCC_GETH_UTFET_GIGA_INIT 4096/*1024*/ /* 1/2 utfs */ +#define UCC_GETH_UTFTT_GIGA_INIT 0x400/*0x40*/ /* */ + +#define UCC_GETH_REMODER_INIT 0 /* bits that must be + set */ +#define UCC_GETH_TEMODER_INIT 0xC000 /* bits that must */ +#define UCC_GETH_UPSMR_INIT (UPSMR_RES1) /* Start value + for this + register */ +#define UCC_GETH_MACCFG1_INIT 0 +#define UCC_GETH_MACCFG2_INIT (MACCFG2_RESERVED_1) +#define UCC_GETH_MIIMCFG_MNGMNT_CLC_DIV_INIT \ + (MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_112) + +/* Ethernet speed */ +typedef enum enet_speed { + ENET_SPEED_10BT, /* 10 Base T */ + ENET_SPEED_100BT, /* 100 Base T */ + ENET_SPEED_1000BT /* 1000 Base T */ +} enet_speed_e; + +/* Ethernet Address Type. */ +typedef enum enet_addr_type { + ENET_ADDR_TYPE_INDIVIDUAL, + ENET_ADDR_TYPE_GROUP, + ENET_ADDR_TYPE_BROADCAST +} enet_addr_type_e; + +/* TBI / MII Set Register */ +typedef enum enet_tbi_mii_reg { + ENET_TBI_MII_CR = 0x00, /* Control (CR ) */ + ENET_TBI_MII_SR = 0x01, /* Status (SR ) */ + ENET_TBI_MII_ANA = 0x04, /* AN advertisement (ANA ) */ + ENET_TBI_MII_ANLPBPA = 0x05, /* AN link partner base page ability + (ANLPBPA) */ + ENET_TBI_MII_ANEX = 0x06, /* AN expansion (ANEX ) */ + ENET_TBI_MII_ANNPT = 0x07, /* AN next page transmit (ANNPT ) */ + ENET_TBI_MII_ANLPANP = 0x08, /* AN link partner ability next page + (ANLPANP) */ + ENET_TBI_MII_EXST = 0x0F, /* Extended status (EXST ) */ + ENET_TBI_MII_JD = 0x10, /* Jitter diagnostics (JD ) */ + ENET_TBI_MII_TBICON = 0x11 /* TBI control (TBICON ) */ +} enet_tbi_mii_reg_e; + +/* UCC GETH 82xx Ethernet Address Recognition Location */ +typedef enum ucc_geth_enet_address_recognition_location { + UCC_GETH_ENET_ADDRESS_RECOGNITION_LOCATION_STATION_ADDRESS,/* station + address */ + UCC_GETH_ENET_ADDRESS_RECOGNITION_LOCATION_PADDR_FIRST, /* additional + station + address + paddr1 */ + UCC_GETH_ENET_ADDRESS_RECOGNITION_LOCATION_PADDR2, /* additional + station + address + paddr2 */ + UCC_GETH_ENET_ADDRESS_RECOGNITION_LOCATION_PADDR3, /* additional + station + address + paddr3 */ + UCC_GETH_ENET_ADDRESS_RECOGNITION_LOCATION_PADDR_LAST, /* additional + station + address + paddr4 */ + UCC_GETH_ENET_ADDRESS_RECOGNITION_LOCATION_GROUP_HASH, /* group hash */ + UCC_GETH_ENET_ADDRESS_RECOGNITION_LOCATION_INDIVIDUAL_HASH /* individual + hash */ +} ucc_geth_enet_address_recognition_location_e; + +/* UCC GETH vlan operation tagged */ +typedef enum ucc_geth_vlan_operation_tagged { + UCC_GETH_VLAN_OPERATION_TAGGED_NOP = 0x0, /* Tagged - nop */ + UCC_GETH_VLAN_OPERATION_TAGGED_REPLACE_VID_PORTION_OF_Q_TAG + = 0x1, /* Tagged - replace vid portion of q tag */ + UCC_GETH_VLAN_OPERATION_TAGGED_IF_VID0_REPLACE_VID_WITH_DEFAULT_VALUE + = 0x2, /* Tagged - if vid0 replace vid with default value */ + UCC_GETH_VLAN_OPERATION_TAGGED_EXTRACT_Q_TAG_FROM_FRAME + = 0x3 /* Tagged - extract q tag from frame */ +} ucc_geth_vlan_operation_tagged_e; + +/* UCC GETH vlan operation non-tagged */ +typedef enum ucc_geth_vlan_operation_non_tagged { + UCC_GETH_VLAN_OPERATION_NON_TAGGED_NOP = 0x0, /* Non tagged - nop */ + UCC_GETH_VLAN_OPERATION_NON_TAGGED_Q_TAG_INSERT = 0x1 /* Non tagged - + q tag insert + */ +} ucc_geth_vlan_operation_non_tagged_e; + +/* UCC GETH Rx Quality of Service Mode */ +typedef enum ucc_geth_qos_mode { + UCC_GETH_QOS_MODE_DEFAULT = 0x0, /* default queue */ + UCC_GETH_QOS_MODE_QUEUE_NUM_FROM_L2_CRITERIA = 0x1, /* queue + determined + by L2 + criteria */ + UCC_GETH_QOS_MODE_QUEUE_NUM_FROM_L3_CRITERIA = 0x2 /* queue + determined + by L3 + criteria */ +} ucc_geth_qos_mode_e; + +/* UCC GETH Statistics Gathering Mode - These are bit flags, 'or' them together + for combined functionality */ +typedef enum ucc_geth_statistics_gathering_mode { + UCC_GETH_STATISTICS_GATHERING_MODE_NONE = 0x00000000, /* No + statistics + gathering */ + UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE = 0x00000001,/* Enable + hardware + statistics + gathering + */ + UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX = 0x00000004,/*Enable + firmware + tx + statistics + gathering + */ + UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX = 0x00000008/* Enable + firmware + rx + statistics + gathering + */ +} ucc_geth_statistics_gathering_mode_e; + +/* UCC GETH Pad and CRC Mode - Note, Padding without CRC is not possible */ +typedef enum ucc_geth_maccfg2_pad_and_crc_mode { + UCC_GETH_PAD_AND_CRC_MODE_NONE + = MACCFG2_PAD_AND_CRC_MODE_NONE, /* Neither Padding + short frames + nor CRC */ + UCC_GETH_PAD_AND_CRC_MODE_CRC_ONLY + = MACCFG2_PAD_AND_CRC_MODE_CRC_ONLY, /* Append + CRC only */ + UCC_GETH_PAD_AND_CRC_MODE_PAD_AND_CRC = + MACCFG2_PAD_AND_CRC_MODE_PAD_AND_CRC +} ucc_geth_maccfg2_pad_and_crc_mode_e; + +/* UCC GETH upsmr Flow Control Mode */ +typedef enum ucc_geth_flow_control_mode { + UPSMR_AUTOMATIC_FLOW_CONTROL_MODE_NONE = 0x00000000, /* No automatic + flow control + */ + UPSMR_AUTOMATIC_FLOW_CONTROL_MODE_PAUSE_WHEN_EMERGENCY + = 0x00004000 /* Send pause frame when RxFIFO reaches its + emergency threshold */ +} ucc_geth_flow_control_mode_e; + +/* UCC GETH number of threads */ +typedef enum ucc_geth_num_of_threads { + UCC_GETH_NUM_OF_THREADS_1 = 0x1, /* 1 */ + UCC_GETH_NUM_OF_THREADS_2 = 0x2, /* 2 */ + UCC_GETH_NUM_OF_THREADS_4 = 0x0, /* 4 */ + UCC_GETH_NUM_OF_THREADS_6 = 0x3, /* 6 */ + UCC_GETH_NUM_OF_THREADS_8 = 0x4 /* 8 */ +} ucc_geth_num_of_threads_e; + +/* UCC GETH number of station addresses */ +typedef enum ucc_geth_num_of_station_addresses { + UCC_GETH_NUM_OF_STATION_ADDRESSES_1, /* 1 */ + UCC_GETH_NUM_OF_STATION_ADDRESSES_5 /* 5 */ +} ucc_geth_num_of_station_addresses_e; + +typedef u8 enet_addr_t[ENET_NUM_OCTETS_PER_ADDRESS]; + +/* UCC GETH 82xx Ethernet Address Container */ +typedef struct enet_addr_container { + enet_addr_t address; /* ethernet address */ + ucc_geth_enet_address_recognition_location_e location; /* location in + 82xx address + recognition + hardware */ + struct list_head node; +} enet_addr_container_t; + +#define ENET_ADDR_CONT_ENTRY(ptr) list_entry(ptr, enet_addr_container_t, node) + +/* UCC GETH Termination Action Descriptor (TAD) structure. */ +typedef struct ucc_geth_tad_params { + int rx_non_dynamic_extended_features_mode; + int reject_frame; + ucc_geth_vlan_operation_tagged_e vtag_op; + ucc_geth_vlan_operation_non_tagged_e vnontag_op; + ucc_geth_qos_mode_e rqos; + u8 vpri; + u16 vid; +} ucc_geth_tad_params_t; + +/* GETH protocol initialization structure */ +typedef struct ucc_geth_info { + ucc_fast_info_t uf_info; + u8 numQueuesTx; + u8 numQueuesRx; + int ipCheckSumCheck; + int ipCheckSumGenerate; + int rxExtendedFiltering; + u32 extendedFilteringChainPointer; + u16 typeorlen; + int dynamicMaxFrameLength; + int dynamicMinFrameLength; + u8 nonBackToBackIfgPart1; + u8 nonBackToBackIfgPart2; + u8 miminumInterFrameGapEnforcement; + u8 backToBackInterFrameGap; + int ipAddressAlignment; + int lengthCheckRx; + u32 mblinterval; + u16 nortsrbytetime; + u8 fracsiz; + u8 strictpriorityq; + u8 txasap; + u8 extrabw; + int miiPreambleSupress; + u8 altBebTruncation; + int altBeb; + int backPressureNoBackoff; + int noBackoff; + int excessDefer; + u8 maxRetransmission; + u8 collisionWindow; + int pro; + int cap; + int rsh; + int rlpb; + int cam; + int bro; + int ecm; + int receiveFlowControl; + u8 maxGroupAddrInHash; + u8 maxIndAddrInHash; + u8 prel; + u16 maxFrameLength; + u16 minFrameLength; + u16 maxD1Length; + u16 maxD2Length; + u16 vlantype; + u16 vlantci; + u32 ecamptr; + u32 eventRegMask; + u16 pausePeriod; + u16 extensionField; + u8 phy_address; + u32 board_flags; + u32 phy_interrupt; + u8 weightfactor[NUM_TX_QUEUES]; + u8 interruptcoalescingmaxvalue[NUM_RX_QUEUES]; + u8 l2qt[UCC_GETH_VLAN_PRIORITY_MAX]; + u8 l3qt[UCC_GETH_IP_PRIORITY_MAX]; + u32 vtagtable[UCC_GETH_TX_VTAG_TABLE_ENTRY_MAX]; + u8 iphoffset[TX_IP_OFFSET_ENTRY_MAX]; + u16 bdRingLenTx[NUM_TX_QUEUES]; + u16 bdRingLenRx[NUM_RX_QUEUES]; + enet_interface_e enet_interface; + ucc_geth_num_of_station_addresses_e numStationAddresses; + qe_fltr_largest_external_tbl_lookup_key_size_e + largestexternallookupkeysize; + ucc_geth_statistics_gathering_mode_e statisticsMode; + ucc_geth_vlan_operation_tagged_e vlanOperationTagged; + ucc_geth_vlan_operation_non_tagged_e vlanOperationNonTagged; + ucc_geth_qos_mode_e rxQoSMode; + ucc_geth_flow_control_mode_e aufc; + ucc_geth_maccfg2_pad_and_crc_mode_e padAndCrc; + ucc_geth_num_of_threads_e numThreadsTx; + ucc_geth_num_of_threads_e numThreadsRx; + qe_risc_allocation_e riscTx; + qe_risc_allocation_e riscRx; +} ucc_geth_info_t; + +/* structure representing UCC GETH */ +typedef struct ucc_geth_private { + ucc_geth_info_t *ug_info; + ucc_fast_private_t *uccf; + struct net_device *dev; + struct net_device_stats stats; /* linux network statistics */ + ucc_geth_t *ug_regs; + ucc_geth_init_pram_t *p_init_enet_param_shadow; + ucc_geth_exf_global_pram_t *p_exf_glbl_param; + u32 exf_glbl_param_offset; + ucc_geth_rx_global_pram_t *p_rx_glbl_pram; + u32 rx_glbl_pram_offset; + ucc_geth_tx_global_pram_t *p_tx_glbl_pram; + u32 tx_glbl_pram_offset; + ucc_geth_send_queue_mem_region_t *p_send_q_mem_reg; + u32 send_q_mem_reg_offset; + ucc_geth_thread_data_tx_t *p_thread_data_tx; + u32 thread_dat_tx_offset; + ucc_geth_thread_data_rx_t *p_thread_data_rx; + u32 thread_dat_rx_offset; + ucc_geth_scheduler_t *p_scheduler; + u32 scheduler_offset; + ucc_geth_tx_firmware_statistics_pram_t *p_tx_fw_statistics_pram; + u32 tx_fw_statistics_pram_offset; + ucc_geth_rx_firmware_statistics_pram_t *p_rx_fw_statistics_pram; + u32 rx_fw_statistics_pram_offset; + ucc_geth_rx_interrupt_coalescing_table_t *p_rx_irq_coalescing_tbl; + u32 rx_irq_coalescing_tbl_offset; + ucc_geth_rx_bd_queues_entry_t *p_rx_bd_qs_tbl; + u32 rx_bd_qs_tbl_offset; + u8 *p_tx_bd_ring[NUM_TX_QUEUES]; + u32 tx_bd_ring_offset[NUM_TX_QUEUES]; + u8 *p_rx_bd_ring[NUM_RX_QUEUES]; + u32 rx_bd_ring_offset[NUM_RX_QUEUES]; + u8 *confBd[NUM_TX_QUEUES]; + u8 *txBd[NUM_TX_QUEUES]; + u8 *rxBd[NUM_RX_QUEUES]; + int badFrame[NUM_RX_QUEUES]; + u16 cpucount[NUM_TX_QUEUES]; + volatile u16 *p_cpucount[NUM_TX_QUEUES]; + int indAddrRegUsed[NUM_OF_PADDRS]; + enet_addr_t paddr[NUM_OF_PADDRS]; + u8 numGroupAddrInHash; + u8 numIndAddrInHash; + u8 numIndAddrInReg; + int rx_extended_features; + int rx_non_dynamic_extended_features; + struct list_head conf_skbs; + struct list_head group_hash_q; + struct list_head ind_hash_q; + u32 saved_uccm; + spinlock_t lock; + /* pointers to arrays of skbuffs for tx and rx */ + struct sk_buff **tx_skbuff[NUM_TX_QUEUES]; + struct sk_buff **rx_skbuff[NUM_RX_QUEUES]; + /* indices pointing to the next free sbk in skb arrays */ + u16 skb_curtx[NUM_TX_QUEUES]; + u16 skb_currx[NUM_RX_QUEUES]; + /* index of the first skb which hasn't been transmitted yet. */ + u16 skb_dirtytx[NUM_TX_QUEUES]; + + struct work_struct tq; + struct timer_list phy_info_timer; + struct ugeth_mii_info *mii_info; + int oldspeed; + int oldduplex; + int oldlink; +} ucc_geth_private_t; + +#endif /* __UCC_GETH_H__ */ diff --git a/drivers/net/ucc_geth_phy.c b/drivers/net/ucc_geth_phy.c new file mode 100644 index 000000000000..f91028c5386d --- /dev/null +++ b/drivers/net/ucc_geth_phy.c @@ -0,0 +1,801 @@ +/* + * Copyright (C) Freescale Semicondutor, Inc. 2006. All rights reserved. + * + * Author: Shlomi Gridish + * + * Description: + * UCC GETH Driver -- PHY handling + * + * Changelog: + * Jun 28, 2006 Li Yang + * - Rearrange code and style fixes + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#include "ucc_geth.h" +#include "ucc_geth_phy.h" +#include + +#define ugphy_printk(level, format, arg...) \ + printk(level format "\n", ## arg) + +#define ugphy_dbg(format, arg...) \ + ugphy_printk(KERN_DEBUG, format , ## arg) +#define ugphy_err(format, arg...) \ + ugphy_printk(KERN_ERR, format , ## arg) +#define ugphy_info(format, arg...) \ + ugphy_printk(KERN_INFO, format , ## arg) +#define ugphy_warn(format, arg...) \ + ugphy_printk(KERN_WARNING, format , ## arg) + +#ifdef UGETH_VERBOSE_DEBUG +#define ugphy_vdbg ugphy_dbg +#else +#define ugphy_vdbg(fmt, args...) do { } while (0) +#endif /* UGETH_VERBOSE_DEBUG */ + +static void config_genmii_advert(struct ugeth_mii_info *mii_info); +static void genmii_setup_forced(struct ugeth_mii_info *mii_info); +static void genmii_restart_aneg(struct ugeth_mii_info *mii_info); +static int gbit_config_aneg(struct ugeth_mii_info *mii_info); +static int genmii_config_aneg(struct ugeth_mii_info *mii_info); +static int genmii_update_link(struct ugeth_mii_info *mii_info); +static int genmii_read_status(struct ugeth_mii_info *mii_info); +u16 phy_read(struct ugeth_mii_info *mii_info, u16 regnum); +void phy_write(struct ugeth_mii_info *mii_info, u16 regnum, u16 val); + +static u8 *bcsr_regs = NULL; + +/* Write value to the PHY for this device to the register at regnum, */ +/* waiting until the write is done before it returns. All PHY */ +/* configuration has to be done through the TSEC1 MIIM regs */ +void write_phy_reg(struct net_device *dev, int mii_id, int regnum, int value) +{ + ucc_geth_private_t *ugeth = netdev_priv(dev); + ucc_mii_mng_t *mii_regs; + enet_tbi_mii_reg_e mii_reg = (enet_tbi_mii_reg_e) regnum; + u32 tmp_reg; + + ugphy_vdbg("%s: IN", __FUNCTION__); + + spin_lock_irq(&ugeth->lock); + + mii_regs = ugeth->mii_info->mii_regs; + + /* Set this UCC to be the master of the MII managment */ + ucc_set_qe_mux_mii_mng(ugeth->ug_info->uf_info.ucc_num); + + /* Stop the MII management read cycle */ + out_be32(&mii_regs->miimcom, 0); + /* Setting up the MII Mangement Address Register */ + tmp_reg = ((u32) mii_id << MIIMADD_PHY_ADDRESS_SHIFT) | mii_reg; + out_be32(&mii_regs->miimadd, tmp_reg); + + /* Setting up the MII Mangement Control Register with the value */ + out_be32(&mii_regs->miimcon, (u32) value); + + /* Wait till MII management write is complete */ + while ((in_be32(&mii_regs->miimind)) & MIIMIND_BUSY) + cpu_relax(); + + spin_unlock_irq(&ugeth->lock); + + udelay(10000); +} + +/* Reads from register regnum in the PHY for device dev, */ +/* returning the value. Clears miimcom first. All PHY */ +/* configuration has to be done through the TSEC1 MIIM regs */ +int read_phy_reg(struct net_device *dev, int mii_id, int regnum) +{ + ucc_geth_private_t *ugeth = netdev_priv(dev); + ucc_mii_mng_t *mii_regs; + enet_tbi_mii_reg_e mii_reg = (enet_tbi_mii_reg_e) regnum; + u32 tmp_reg; + u16 value; + + ugphy_vdbg("%s: IN", __FUNCTION__); + + spin_lock_irq(&ugeth->lock); + + mii_regs = ugeth->mii_info->mii_regs; + + /* Setting up the MII Mangement Address Register */ + tmp_reg = ((u32) mii_id << MIIMADD_PHY_ADDRESS_SHIFT) | mii_reg; + out_be32(&mii_regs->miimadd, tmp_reg); + + /* Perform an MII management read cycle */ + out_be32(&mii_regs->miimcom, MIIMCOM_READ_CYCLE); + + /* Wait till MII management write is complete */ + while ((in_be32(&mii_regs->miimind)) & MIIMIND_BUSY) + cpu_relax(); + + udelay(10000); + + /* Read MII management status */ + value = (u16) in_be32(&mii_regs->miimstat); + out_be32(&mii_regs->miimcom, 0); + if (value == 0xffff) + ugphy_warn("read wrong value : mii_id %d,mii_reg %d, base %08x", + mii_id, mii_reg, (u32) & (mii_regs->miimcfg)); + + spin_unlock_irq(&ugeth->lock); + + return (value); +} + +void mii_clear_phy_interrupt(struct ugeth_mii_info *mii_info) +{ + ugphy_vdbg("%s: IN", __FUNCTION__); + + if (mii_info->phyinfo->ack_interrupt) + mii_info->phyinfo->ack_interrupt(mii_info); +} + +void mii_configure_phy_interrupt(struct ugeth_mii_info *mii_info, + u32 interrupts) +{ + ugphy_vdbg("%s: IN", __FUNCTION__); + + mii_info->interrupts = interrupts; + if (mii_info->phyinfo->config_intr) + mii_info->phyinfo->config_intr(mii_info); +} + +/* Writes MII_ADVERTISE with the appropriate values, after + * sanitizing advertise to make sure only supported features + * are advertised + */ +static void config_genmii_advert(struct ugeth_mii_info *mii_info) +{ + u32 advertise; + u16 adv; + + ugphy_vdbg("%s: IN", __FUNCTION__); + + /* Only allow advertising what this PHY supports */ + mii_info->advertising &= mii_info->phyinfo->features; + advertise = mii_info->advertising; + + /* Setup standard advertisement */ + adv = phy_read(mii_info, MII_ADVERTISE); + adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4); + if (advertise & ADVERTISED_10baseT_Half) + adv |= ADVERTISE_10HALF; + if (advertise & ADVERTISED_10baseT_Full) + adv |= ADVERTISE_10FULL; + if (advertise & ADVERTISED_100baseT_Half) + adv |= ADVERTISE_100HALF; + if (advertise & ADVERTISED_100baseT_Full) + adv |= ADVERTISE_100FULL; + phy_write(mii_info, MII_ADVERTISE, adv); +} + +static void genmii_setup_forced(struct ugeth_mii_info *mii_info) +{ + u16 ctrl; + u32 features = mii_info->phyinfo->features; + + ugphy_vdbg("%s: IN", __FUNCTION__); + + ctrl = phy_read(mii_info, MII_BMCR); + + ctrl &= + ~(BMCR_FULLDPLX | BMCR_SPEED100 | BMCR_SPEED1000 | BMCR_ANENABLE); + ctrl |= BMCR_RESET; + + switch (mii_info->speed) { + case SPEED_1000: + if (features & (SUPPORTED_1000baseT_Half + | SUPPORTED_1000baseT_Full)) { + ctrl |= BMCR_SPEED1000; + break; + } + mii_info->speed = SPEED_100; + case SPEED_100: + if (features & (SUPPORTED_100baseT_Half + | SUPPORTED_100baseT_Full)) { + ctrl |= BMCR_SPEED100; + break; + } + mii_info->speed = SPEED_10; + case SPEED_10: + if (features & (SUPPORTED_10baseT_Half + | SUPPORTED_10baseT_Full)) + break; + default: /* Unsupported speed! */ + ugphy_err("%s: Bad speed!", mii_info->dev->name); + break; + } + + phy_write(mii_info, MII_BMCR, ctrl); +} + +/* Enable and Restart Autonegotiation */ +static void genmii_restart_aneg(struct ugeth_mii_info *mii_info) +{ + u16 ctl; + + ugphy_vdbg("%s: IN", __FUNCTION__); + + ctl = phy_read(mii_info, MII_BMCR); + ctl |= (BMCR_ANENABLE | BMCR_ANRESTART); + phy_write(mii_info, MII_BMCR, ctl); +} + +static int gbit_config_aneg(struct ugeth_mii_info *mii_info) +{ + u16 adv; + u32 advertise; + + ugphy_vdbg("%s: IN", __FUNCTION__); + + if (mii_info->autoneg) { + /* Configure the ADVERTISE register */ + config_genmii_advert(mii_info); + advertise = mii_info->advertising; + + adv = phy_read(mii_info, MII_1000BASETCONTROL); + adv &= ~(MII_1000BASETCONTROL_FULLDUPLEXCAP | + MII_1000BASETCONTROL_HALFDUPLEXCAP); + if (advertise & SUPPORTED_1000baseT_Half) + adv |= MII_1000BASETCONTROL_HALFDUPLEXCAP; + if (advertise & SUPPORTED_1000baseT_Full) + adv |= MII_1000BASETCONTROL_FULLDUPLEXCAP; + phy_write(mii_info, MII_1000BASETCONTROL, adv); + + /* Start/Restart aneg */ + genmii_restart_aneg(mii_info); + } else + genmii_setup_forced(mii_info); + + return 0; +} + +static int genmii_config_aneg(struct ugeth_mii_info *mii_info) +{ + ugphy_vdbg("%s: IN", __FUNCTION__); + + if (mii_info->autoneg) { + config_genmii_advert(mii_info); + genmii_restart_aneg(mii_info); + } else + genmii_setup_forced(mii_info); + + return 0; +} + +static int genmii_update_link(struct ugeth_mii_info *mii_info) +{ + u16 status; + + ugphy_vdbg("%s: IN", __FUNCTION__); + + /* Do a fake read */ + phy_read(mii_info, MII_BMSR); + + /* Read link and autonegotiation status */ + status = phy_read(mii_info, MII_BMSR); + if ((status & BMSR_LSTATUS) == 0) + mii_info->link = 0; + else + mii_info->link = 1; + + /* If we are autonegotiating, and not done, + * return an error */ + if (mii_info->autoneg && !(status & BMSR_ANEGCOMPLETE)) + return -EAGAIN; + + return 0; +} + +static int genmii_read_status(struct ugeth_mii_info *mii_info) +{ + u16 status; + int err; + + ugphy_vdbg("%s: IN", __FUNCTION__); + + /* Update the link, but return if there + * was an error */ + err = genmii_update_link(mii_info); + if (err) + return err; + + if (mii_info->autoneg) { + status = phy_read(mii_info, MII_LPA); + + if (status & (LPA_10FULL | LPA_100FULL)) + mii_info->duplex = DUPLEX_FULL; + else + mii_info->duplex = DUPLEX_HALF; + if (status & (LPA_100FULL | LPA_100HALF)) + mii_info->speed = SPEED_100; + else + mii_info->speed = SPEED_10; + mii_info->pause = 0; + } + /* On non-aneg, we assume what we put in BMCR is the speed, + * though magic-aneg shouldn't prevent this case from occurring + */ + + return 0; +} + +static int marvell_init(struct ugeth_mii_info *mii_info) +{ + ugphy_vdbg("%s: IN", __FUNCTION__); + + phy_write(mii_info, 0x14, 0x0cd2); + phy_write(mii_info, MII_BMCR, + phy_read(mii_info, MII_BMCR) | BMCR_RESET); + msleep(4000); + + return 0; +} + +static int marvell_config_aneg(struct ugeth_mii_info *mii_info) +{ + ugphy_vdbg("%s: IN", __FUNCTION__); + + /* The Marvell PHY has an errata which requires + * that certain registers get written in order + * to restart autonegotiation */ + phy_write(mii_info, MII_BMCR, BMCR_RESET); + + phy_write(mii_info, 0x1d, 0x1f); + phy_write(mii_info, 0x1e, 0x200c); + phy_write(mii_info, 0x1d, 0x5); + phy_write(mii_info, 0x1e, 0); + phy_write(mii_info, 0x1e, 0x100); + + gbit_config_aneg(mii_info); + + return 0; +} + +static int marvell_read_status(struct ugeth_mii_info *mii_info) +{ + u16 status; + int err; + + ugphy_vdbg("%s: IN", __FUNCTION__); + + /* Update the link, but return if there + * was an error */ + err = genmii_update_link(mii_info); + if (err) + return err; + + /* If the link is up, read the speed and duplex */ + /* If we aren't autonegotiating, assume speeds + * are as set */ + if (mii_info->autoneg && mii_info->link) { + int speed; + status = phy_read(mii_info, MII_M1011_PHY_SPEC_STATUS); + + /* Get the duplexity */ + if (status & MII_M1011_PHY_SPEC_STATUS_FULLDUPLEX) + mii_info->duplex = DUPLEX_FULL; + else + mii_info->duplex = DUPLEX_HALF; + + /* Get the speed */ + speed = status & MII_M1011_PHY_SPEC_STATUS_SPD_MASK; + switch (speed) { + case MII_M1011_PHY_SPEC_STATUS_1000: + mii_info->speed = SPEED_1000; + break; + case MII_M1011_PHY_SPEC_STATUS_100: + mii_info->speed = SPEED_100; + break; + default: + mii_info->speed = SPEED_10; + break; + } + mii_info->pause = 0; + } + + return 0; +} + +static int marvell_ack_interrupt(struct ugeth_mii_info *mii_info) +{ + ugphy_vdbg("%s: IN", __FUNCTION__); + + /* Clear the interrupts by reading the reg */ + phy_read(mii_info, MII_M1011_IEVENT); + + return 0; +} + +static int marvell_config_intr(struct ugeth_mii_info *mii_info) +{ + ugphy_vdbg("%s: IN", __FUNCTION__); + + if (mii_info->interrupts == MII_INTERRUPT_ENABLED) + phy_write(mii_info, MII_M1011_IMASK, MII_M1011_IMASK_INIT); + else + phy_write(mii_info, MII_M1011_IMASK, MII_M1011_IMASK_CLEAR); + + return 0; +} + +static int cis820x_init(struct ugeth_mii_info *mii_info) +{ + ugphy_vdbg("%s: IN", __FUNCTION__); + + phy_write(mii_info, MII_CIS8201_AUX_CONSTAT, + MII_CIS8201_AUXCONSTAT_INIT); + phy_write(mii_info, MII_CIS8201_EXT_CON1, MII_CIS8201_EXTCON1_INIT); + + return 0; +} + +static int cis820x_read_status(struct ugeth_mii_info *mii_info) +{ + u16 status; + int err; + + ugphy_vdbg("%s: IN", __FUNCTION__); + + /* Update the link, but return if there + * was an error */ + err = genmii_update_link(mii_info); + if (err) + return err; + + /* If the link is up, read the speed and duplex */ + /* If we aren't autonegotiating, assume speeds + * are as set */ + if (mii_info->autoneg && mii_info->link) { + int speed; + + status = phy_read(mii_info, MII_CIS8201_AUX_CONSTAT); + if (status & MII_CIS8201_AUXCONSTAT_DUPLEX) + mii_info->duplex = DUPLEX_FULL; + else + mii_info->duplex = DUPLEX_HALF; + + speed = status & MII_CIS8201_AUXCONSTAT_SPEED; + + switch (speed) { + case MII_CIS8201_AUXCONSTAT_GBIT: + mii_info->speed = SPEED_1000; + break; + case MII_CIS8201_AUXCONSTAT_100: + mii_info->speed = SPEED_100; + break; + default: + mii_info->speed = SPEED_10; + break; + } + } + + return 0; +} + +static int cis820x_ack_interrupt(struct ugeth_mii_info *mii_info) +{ + ugphy_vdbg("%s: IN", __FUNCTION__); + + phy_read(mii_info, MII_CIS8201_ISTAT); + + return 0; +} + +static int cis820x_config_intr(struct ugeth_mii_info *mii_info) +{ + ugphy_vdbg("%s: IN", __FUNCTION__); + + if (mii_info->interrupts == MII_INTERRUPT_ENABLED) + phy_write(mii_info, MII_CIS8201_IMASK, MII_CIS8201_IMASK_MASK); + else + phy_write(mii_info, MII_CIS8201_IMASK, 0); + + return 0; +} + +#define DM9161_DELAY 10 + +static int dm9161_read_status(struct ugeth_mii_info *mii_info) +{ + u16 status; + int err; + + ugphy_vdbg("%s: IN", __FUNCTION__); + + /* Update the link, but return if there + * was an error */ + err = genmii_update_link(mii_info); + if (err) + return err; + + /* If the link is up, read the speed and duplex */ + /* If we aren't autonegotiating, assume speeds + * are as set */ + if (mii_info->autoneg && mii_info->link) { + status = phy_read(mii_info, MII_DM9161_SCSR); + if (status & (MII_DM9161_SCSR_100F | MII_DM9161_SCSR_100H)) + mii_info->speed = SPEED_100; + else + mii_info->speed = SPEED_10; + + if (status & (MII_DM9161_SCSR_100F | MII_DM9161_SCSR_10F)) + mii_info->duplex = DUPLEX_FULL; + else + mii_info->duplex = DUPLEX_HALF; + } + + return 0; +} + +static int dm9161_config_aneg(struct ugeth_mii_info *mii_info) +{ + struct dm9161_private *priv = mii_info->priv; + + ugphy_vdbg("%s: IN", __FUNCTION__); + + if (0 == priv->resetdone) + return -EAGAIN; + + return 0; +} + +static void dm9161_timer(unsigned long data) +{ + struct ugeth_mii_info *mii_info = (struct ugeth_mii_info *)data; + struct dm9161_private *priv = mii_info->priv; + u16 status = phy_read(mii_info, MII_BMSR); + + ugphy_vdbg("%s: IN", __FUNCTION__); + + if (status & BMSR_ANEGCOMPLETE) { + priv->resetdone = 1; + } else + mod_timer(&priv->timer, jiffies + DM9161_DELAY * HZ); +} + +static int dm9161_init(struct ugeth_mii_info *mii_info) +{ + struct dm9161_private *priv; + + ugphy_vdbg("%s: IN", __FUNCTION__); + + /* Allocate the private data structure */ + priv = kmalloc(sizeof(struct dm9161_private), GFP_KERNEL); + + if (NULL == priv) + return -ENOMEM; + + mii_info->priv = priv; + + /* Reset is not done yet */ + priv->resetdone = 0; + + phy_write(mii_info, MII_BMCR, + phy_read(mii_info, MII_BMCR) | BMCR_RESET); + + phy_write(mii_info, MII_BMCR, + phy_read(mii_info, MII_BMCR) & ~BMCR_ISOLATE); + + config_genmii_advert(mii_info); + /* Start/Restart aneg */ + genmii_config_aneg(mii_info); + + /* Start a timer for DM9161_DELAY seconds to wait + * for the PHY to be ready */ + init_timer(&priv->timer); + priv->timer.function = &dm9161_timer; + priv->timer.data = (unsigned long)mii_info; + mod_timer(&priv->timer, jiffies + DM9161_DELAY * HZ); + + return 0; +} + +static void dm9161_close(struct ugeth_mii_info *mii_info) +{ + struct dm9161_private *priv = mii_info->priv; + + ugphy_vdbg("%s: IN", __FUNCTION__); + + del_timer_sync(&priv->timer); + kfree(priv); +} + +static int dm9161_ack_interrupt(struct ugeth_mii_info *mii_info) +{ +/* FIXME: This lines are for BUG fixing in the mpc8325. +Remove this from here when it's fixed */ + if (bcsr_regs == NULL) + bcsr_regs = (u8 *) ioremap(BCSR_PHYS_ADDR, BCSR_SIZE); + bcsr_regs[14] |= 0x40; + ugphy_vdbg("%s: IN", __FUNCTION__); + + /* Clear the interrupts by reading the reg */ + phy_read(mii_info, MII_DM9161_INTR); + + + return 0; +} + +static int dm9161_config_intr(struct ugeth_mii_info *mii_info) +{ +/* FIXME: This lines are for BUG fixing in the mpc8325. +Remove this from here when it's fixed */ + if (bcsr_regs == NULL) { + bcsr_regs = (u8 *) ioremap(BCSR_PHYS_ADDR, BCSR_SIZE); + bcsr_regs[14] &= ~0x40; + } + ugphy_vdbg("%s: IN", __FUNCTION__); + + if (mii_info->interrupts == MII_INTERRUPT_ENABLED) + phy_write(mii_info, MII_DM9161_INTR, MII_DM9161_INTR_INIT); + else + phy_write(mii_info, MII_DM9161_INTR, MII_DM9161_INTR_STOP); + + return 0; +} + +/* Cicada 820x */ +static struct phy_info phy_info_cis820x = { + .phy_id = 0x000fc440, + .name = "Cicada Cis8204", + .phy_id_mask = 0x000fffc0, + .features = MII_GBIT_FEATURES, + .init = &cis820x_init, + .config_aneg = &gbit_config_aneg, + .read_status = &cis820x_read_status, + .ack_interrupt = &cis820x_ack_interrupt, + .config_intr = &cis820x_config_intr, +}; + +static struct phy_info phy_info_dm9161 = { + .phy_id = 0x0181b880, + .phy_id_mask = 0x0ffffff0, + .name = "Davicom DM9161E", + .init = dm9161_init, + .config_aneg = dm9161_config_aneg, + .read_status = dm9161_read_status, + .close = dm9161_close, +}; + +static struct phy_info phy_info_dm9161a = { + .phy_id = 0x0181b8a0, + .phy_id_mask = 0x0ffffff0, + .name = "Davicom DM9161A", + .features = MII_BASIC_FEATURES, + .init = dm9161_init, + .config_aneg = dm9161_config_aneg, + .read_status = dm9161_read_status, + .ack_interrupt = dm9161_ack_interrupt, + .config_intr = dm9161_config_intr, + .close = dm9161_close, +}; + +static struct phy_info phy_info_marvell = { + .phy_id = 0x01410c00, + .phy_id_mask = 0xffffff00, + .name = "Marvell 88E11x1", + .features = MII_GBIT_FEATURES, + .init = &marvell_init, + .config_aneg = &marvell_config_aneg, + .read_status = &marvell_read_status, + .ack_interrupt = &marvell_ack_interrupt, + .config_intr = &marvell_config_intr, +}; + +static struct phy_info phy_info_genmii = { + .phy_id = 0x00000000, + .phy_id_mask = 0x00000000, + .name = "Generic MII", + .features = MII_BASIC_FEATURES, + .config_aneg = genmii_config_aneg, + .read_status = genmii_read_status, +}; + +static struct phy_info *phy_info[] = { + &phy_info_cis820x, + &phy_info_marvell, + &phy_info_dm9161, + &phy_info_dm9161a, + &phy_info_genmii, + NULL +}; + +u16 phy_read(struct ugeth_mii_info *mii_info, u16 regnum) +{ + u16 retval; + unsigned long flags; + + ugphy_vdbg("%s: IN", __FUNCTION__); + + spin_lock_irqsave(&mii_info->mdio_lock, flags); + retval = mii_info->mdio_read(mii_info->dev, mii_info->mii_id, regnum); + spin_unlock_irqrestore(&mii_info->mdio_lock, flags); + + return retval; +} + +void phy_write(struct ugeth_mii_info *mii_info, u16 regnum, u16 val) +{ + unsigned long flags; + + ugphy_vdbg("%s: IN", __FUNCTION__); + + spin_lock_irqsave(&mii_info->mdio_lock, flags); + mii_info->mdio_write(mii_info->dev, mii_info->mii_id, regnum, val); + spin_unlock_irqrestore(&mii_info->mdio_lock, flags); +} + +/* Use the PHY ID registers to determine what type of PHY is attached + * to device dev. return a struct phy_info structure describing that PHY + */ +struct phy_info *get_phy_info(struct ugeth_mii_info *mii_info) +{ + u16 phy_reg; + u32 phy_ID; + int i; + struct phy_info *theInfo = NULL; + struct net_device *dev = mii_info->dev; + + ugphy_vdbg("%s: IN", __FUNCTION__); + + /* Grab the bits from PHYIR1, and put them in the upper half */ + phy_reg = phy_read(mii_info, MII_PHYSID1); + phy_ID = (phy_reg & 0xffff) << 16; + + /* Grab the bits from PHYIR2, and put them in the lower half */ + phy_reg = phy_read(mii_info, MII_PHYSID2); + phy_ID |= (phy_reg & 0xffff); + + /* loop through all the known PHY types, and find one that */ + /* matches the ID we read from the PHY. */ + for (i = 0; phy_info[i]; i++) + if (phy_info[i]->phy_id == (phy_ID & phy_info[i]->phy_id_mask)){ + theInfo = phy_info[i]; + break; + } + + /* This shouldn't happen, as we have generic PHY support */ + if (theInfo == NULL) { + ugphy_info("%s: PHY id %x is not supported!", dev->name, + phy_ID); + return NULL; + } else { + ugphy_info("%s: PHY is %s (%x)", dev->name, theInfo->name, + phy_ID); + } + + return theInfo; +} diff --git a/drivers/net/ucc_geth_phy.h b/drivers/net/ucc_geth_phy.h new file mode 100644 index 000000000000..2f98b8f1bb0a --- /dev/null +++ b/drivers/net/ucc_geth_phy.h @@ -0,0 +1,217 @@ +/* + * Copyright (C) Freescale Semicondutor, Inc. 2006. All rights reserved. + * + * Author: Shlomi Gridish + * + * Description: + * UCC GETH Driver -- PHY handling + * + * Changelog: + * Jun 28, 2006 Li Yang + * - Rearrange code and style fixes + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + */ +#ifndef __UCC_GETH_PHY_H__ +#define __UCC_GETH_PHY_H__ + +#define MII_end ((u32)-2) +#define MII_read ((u32)-1) + +#define MIIMIND_BUSY 0x00000001 +#define MIIMIND_NOTVALID 0x00000004 + +#define UGETH_AN_TIMEOUT 2000 + +/* 1000BT control (Marvell & BCM54xx at least) */ +#define MII_1000BASETCONTROL 0x09 +#define MII_1000BASETCONTROL_FULLDUPLEXCAP 0x0200 +#define MII_1000BASETCONTROL_HALFDUPLEXCAP 0x0100 + +/* Cicada Extended Control Register 1 */ +#define MII_CIS8201_EXT_CON1 0x17 +#define MII_CIS8201_EXTCON1_INIT 0x0000 + +/* Cicada Interrupt Mask Register */ +#define MII_CIS8201_IMASK 0x19 +#define MII_CIS8201_IMASK_IEN 0x8000 +#define MII_CIS8201_IMASK_SPEED 0x4000 +#define MII_CIS8201_IMASK_LINK 0x2000 +#define MII_CIS8201_IMASK_DUPLEX 0x1000 +#define MII_CIS8201_IMASK_MASK 0xf000 + +/* Cicada Interrupt Status Register */ +#define MII_CIS8201_ISTAT 0x1a +#define MII_CIS8201_ISTAT_STATUS 0x8000 +#define MII_CIS8201_ISTAT_SPEED 0x4000 +#define MII_CIS8201_ISTAT_LINK 0x2000 +#define MII_CIS8201_ISTAT_DUPLEX 0x1000 + +/* Cicada Auxiliary Control/Status Register */ +#define MII_CIS8201_AUX_CONSTAT 0x1c +#define MII_CIS8201_AUXCONSTAT_INIT 0x0004 +#define MII_CIS8201_AUXCONSTAT_DUPLEX 0x0020 +#define MII_CIS8201_AUXCONSTAT_SPEED 0x0018 +#define MII_CIS8201_AUXCONSTAT_GBIT 0x0010 +#define MII_CIS8201_AUXCONSTAT_100 0x0008 + +/* 88E1011 PHY Status Register */ +#define MII_M1011_PHY_SPEC_STATUS 0x11 +#define MII_M1011_PHY_SPEC_STATUS_1000 0x8000 +#define MII_M1011_PHY_SPEC_STATUS_100 0x4000 +#define MII_M1011_PHY_SPEC_STATUS_SPD_MASK 0xc000 +#define MII_M1011_PHY_SPEC_STATUS_FULLDUPLEX 0x2000 +#define MII_M1011_PHY_SPEC_STATUS_RESOLVED 0x0800 +#define MII_M1011_PHY_SPEC_STATUS_LINK 0x0400 + +#define MII_M1011_IEVENT 0x13 +#define MII_M1011_IEVENT_CLEAR 0x0000 + +#define MII_M1011_IMASK 0x12 +#define MII_M1011_IMASK_INIT 0x6400 +#define MII_M1011_IMASK_CLEAR 0x0000 + +#define MII_DM9161_SCR 0x10 +#define MII_DM9161_SCR_INIT 0x0610 + +/* DM9161 Specified Configuration and Status Register */ +#define MII_DM9161_SCSR 0x11 +#define MII_DM9161_SCSR_100F 0x8000 +#define MII_DM9161_SCSR_100H 0x4000 +#define MII_DM9161_SCSR_10F 0x2000 +#define MII_DM9161_SCSR_10H 0x1000 + +/* DM9161 Interrupt Register */ +#define MII_DM9161_INTR 0x15 +#define MII_DM9161_INTR_PEND 0x8000 +#define MII_DM9161_INTR_DPLX_MASK 0x0800 +#define MII_DM9161_INTR_SPD_MASK 0x0400 +#define MII_DM9161_INTR_LINK_MASK 0x0200 +#define MII_DM9161_INTR_MASK 0x0100 +#define MII_DM9161_INTR_DPLX_CHANGE 0x0010 +#define MII_DM9161_INTR_SPD_CHANGE 0x0008 +#define MII_DM9161_INTR_LINK_CHANGE 0x0004 +#define MII_DM9161_INTR_INIT 0x0000 +#define MII_DM9161_INTR_STOP \ +(MII_DM9161_INTR_DPLX_MASK | MII_DM9161_INTR_SPD_MASK \ + | MII_DM9161_INTR_LINK_MASK | MII_DM9161_INTR_MASK) + +/* DM9161 10BT Configuration/Status */ +#define MII_DM9161_10BTCSR 0x12 +#define MII_DM9161_10BTCSR_INIT 0x7800 + +#define MII_BASIC_FEATURES (SUPPORTED_10baseT_Half | \ + SUPPORTED_10baseT_Full | \ + SUPPORTED_100baseT_Half | \ + SUPPORTED_100baseT_Full | \ + SUPPORTED_Autoneg | \ + SUPPORTED_TP | \ + SUPPORTED_MII) + +#define MII_GBIT_FEATURES (MII_BASIC_FEATURES | \ + SUPPORTED_1000baseT_Half | \ + SUPPORTED_1000baseT_Full) + +#define MII_READ_COMMAND 0x00000001 + +#define MII_INTERRUPT_DISABLED 0x0 +#define MII_INTERRUPT_ENABLED 0x1 +/* Taken from mii_if_info and sungem_phy.h */ +struct ugeth_mii_info { + /* Information about the PHY type */ + /* And management functions */ + struct phy_info *phyinfo; + + ucc_mii_mng_t *mii_regs; + + /* forced speed & duplex (no autoneg) + * partner speed & duplex & pause (autoneg) + */ + int speed; + int duplex; + int pause; + + /* The most recently read link state */ + int link; + + /* Enabled Interrupts */ + u32 interrupts; + + u32 advertising; + int autoneg; + int mii_id; + + /* private data pointer */ + /* For use by PHYs to maintain extra state */ + void *priv; + + /* Provided by host chip */ + struct net_device *dev; + + /* A lock to ensure that only one thing can read/write + * the MDIO bus at a time */ + spinlock_t mdio_lock; + + /* Provided by ethernet driver */ + int (*mdio_read) (struct net_device * dev, int mii_id, int reg); + void (*mdio_write) (struct net_device * dev, int mii_id, int reg, + int val); +}; + +/* struct phy_info: a structure which defines attributes for a PHY + * + * id will contain a number which represents the PHY. During + * startup, the driver will poll the PHY to find out what its + * UID--as defined by registers 2 and 3--is. The 32-bit result + * gotten from the PHY will be ANDed with phy_id_mask to + * discard any bits which may change based on revision numbers + * unimportant to functionality + * + * There are 6 commands which take a ugeth_mii_info structure. + * Each PHY must declare config_aneg, and read_status. + */ +struct phy_info { + u32 phy_id; + char *name; + unsigned int phy_id_mask; + u32 features; + + /* Called to initialize the PHY */ + int (*init) (struct ugeth_mii_info * mii_info); + + /* Called to suspend the PHY for power */ + int (*suspend) (struct ugeth_mii_info * mii_info); + + /* Reconfigures autonegotiation (or disables it) */ + int (*config_aneg) (struct ugeth_mii_info * mii_info); + + /* Determines the negotiated speed and duplex */ + int (*read_status) (struct ugeth_mii_info * mii_info); + + /* Clears any pending interrupts */ + int (*ack_interrupt) (struct ugeth_mii_info * mii_info); + + /* Enables or disables interrupts */ + int (*config_intr) (struct ugeth_mii_info * mii_info); + + /* Clears up any memory if needed */ + void (*close) (struct ugeth_mii_info * mii_info); +}; + +struct phy_info *get_phy_info(struct ugeth_mii_info *mii_info); +void write_phy_reg(struct net_device *dev, int mii_id, int regnum, int value); +int read_phy_reg(struct net_device *dev, int mii_id, int regnum); +void mii_clear_phy_interrupt(struct ugeth_mii_info *mii_info); +void mii_configure_phy_interrupt(struct ugeth_mii_info *mii_info, + u32 interrupts); + +struct dm9161_private { + struct timer_list timer; + int resetdone; +}; + +#endif /* __UCC_GETH_PHY_H__ */ From 6fd7587bc284af61f92e547287aa5cd616a9c7ba Mon Sep 17 00:00:00 2001 From: Deepak Saxena Date: Mon, 14 Aug 2006 23:00:13 -0700 Subject: [PATCH 233/488] [PATCH] Update smc91x driver with ARM Versatile board info We need to specify a Versatile-specific SMC_IRQ_FLAGS value or the new generic IRQ layer will complain thusly: No IRQF_TRIGGER set_type function for IRQ 25 () Signed-off-by: Deepak Saxena Cc: Jeff Garzik Cc: Russell King Cc: Nicolas Pitre Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/smc91x.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/drivers/net/smc91x.h b/drivers/net/smc91x.h index 9f9f8f2d5338..95ac2ddca433 100644 --- a/drivers/net/smc91x.h +++ b/drivers/net/smc91x.h @@ -367,6 +367,24 @@ static inline void LPD7_SMC_outsw (unsigned char* a, int r, #define SMC_IRQ_FLAGS (0) +#elif defined(CONFIG_ARCH_VERSATILE) + +#define SMC_CAN_USE_8BIT 1 +#define SMC_CAN_USE_16BIT 1 +#define SMC_CAN_USE_32BIT 1 +#define SMC_NOWAIT 1 + +#define SMC_inb(a, r) readb((a) + (r)) +#define SMC_inw(a, r) readw((a) + (r)) +#define SMC_inl(a, r) readl((a) + (r)) +#define SMC_outb(v, a, r) writeb(v, (a) + (r)) +#define SMC_outw(v, a, r) writew(v, (a) + (r)) +#define SMC_outl(v, a, r) writel(v, (a) + (r)) +#define SMC_insl(a, r, p, l) readsl((a) + (r), p, l) +#define SMC_outsl(a, r, p, l) writesl((a) + (r), p, l) + +#define SMC_IRQ_FLAGS (0) + #else #define SMC_CAN_USE_8BIT 1 From 330ce0de93fd7cc0f72fa57a7ec892befe7035d2 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Mon, 14 Aug 2006 23:00:14 -0700 Subject: [PATCH 234/488] [PATCH] s2io build fix sparc32: drivers/net/s2io.c:2636: warning: implicit declaration of function 'disable_irq' drivers/net/s2io.c:2656: warning: implicit declaration of function 'enable_irq' Cc: Ananda Raju Cc: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/s2io.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c index 132ed32bce1a..e72e0e099060 100644 --- a/drivers/net/s2io.c +++ b/drivers/net/s2io.c @@ -71,6 +71,7 @@ #include #include #include +#include /* local include */ #include "s2io.h" From 2fd0e33f4f967022ef2f3249b6c512b309734384 Mon Sep 17 00:00:00 2001 From: Kevin Hao Date: Mon, 14 Aug 2006 23:00:15 -0700 Subject: [PATCH 235/488] [PATCH] net: Add netconsole support to dm9000 driver Add netconsole support to dm9000 driver. Cc: Jeff Garzik Cc: Sascha Hauer Cc: Ben Dooks Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/dm9000.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/drivers/net/dm9000.c b/drivers/net/dm9000.c index 1b758b707134..3d76fa144c4f 100644 --- a/drivers/net/dm9000.c +++ b/drivers/net/dm9000.c @@ -339,6 +339,17 @@ static void dm9000_timeout(struct net_device *dev) spin_unlock_irqrestore(&db->lock,flags); } +#ifdef CONFIG_NET_POLL_CONTROLLER +/* + *Used by netconsole + */ +static void dm9000_poll_controller(struct net_device *dev) +{ + disable_irq(dev->irq); + dm9000_interrupt(dev->irq,dev,NULL); + enable_irq(dev->irq); +} +#endif /* dm9000_release_board * @@ -538,6 +549,9 @@ dm9000_probe(struct platform_device *pdev) ndev->stop = &dm9000_stop; ndev->get_stats = &dm9000_get_stats; ndev->set_multicast_list = &dm9000_hash_table; +#ifdef CONFIG_NET_POLL_CONTROLLER + ndev->poll_controller = &dm9000_poll_controller; +#endif #ifdef DM9000_PROGRAM_EEPROM program_eeprom(db); From a4d09272480e57cd4aa1156cac7aba9b08885bf9 Mon Sep 17 00:00:00 2001 From: Peter Korsgaard Date: Mon, 14 Aug 2006 23:00:17 -0700 Subject: [PATCH 236/488] [PATCH] smc911x: Re-release spinlock on spurious interrupt The smc911x driver forgets to release the spinlock on spurious interrupts. This little patch fixes it. Cc: Jeff Garzik Signed-off-by: Peter Korsgaard Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/smc911x.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/smc911x.c b/drivers/net/smc911x.c index d37bd860b336..0b15290df278 100644 --- a/drivers/net/smc911x.c +++ b/drivers/net/smc911x.c @@ -1092,6 +1092,7 @@ static irqreturn_t smc911x_interrupt(int irq, void *dev_id, struct pt_regs *regs /* Spurious interrupt check */ if ((SMC_GET_IRQ_CFG() & (INT_CFG_IRQ_INT_ | INT_CFG_IRQ_EN_)) != (INT_CFG_IRQ_INT_ | INT_CFG_IRQ_EN_)) { + spin_unlock_irqrestore(&lp->lock, flags); return IRQ_NONE; } From 633949a145df19d6d338b0f227f033a0a1c5562a Mon Sep 17 00:00:00 2001 From: Roger Luethi Date: Mon, 14 Aug 2006 23:00:17 -0700 Subject: [PATCH 237/488] [PATCH] via-rhine: NAPI support Add NAPI support to the via-rhine driver so that it can handle higher speeds and doesn't get overloaded by interrupts as easily. Signed-off-by: Stephen Hemminger Signed-off-by: Roger Luethi Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/Kconfig | 14 ++++++++ drivers/net/via-rhine.c | 77 ++++++++++++++++++++++++++++++++++------- 2 files changed, 79 insertions(+), 12 deletions(-) diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index ea1796e767b7..30b3671d833d 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -1724,6 +1724,20 @@ config VIA_RHINE_MMIO If unsure, say Y. +config VIA_RHINE_NAPI + bool "Use Rx Polling (NAPI)" + depends on VIA_RHINE + help + NAPI is a new driver API designed to reduce CPU and interrupt load + when the driver is receiving lots of packets from the card. + + If your estimated Rx load is 10kpps or more, or if the card will be + deployed on potentially unfriendly networks (e.g. in a firewall), + then say Y here. + + See for more + information. + config LAN_SAA9730 bool "Philips SAA9730 Ethernet support (EXPERIMENTAL)" depends on NET_PCI && EXPERIMENTAL && MIPS diff --git a/drivers/net/via-rhine.c b/drivers/net/via-rhine.c index d3d0ec970318..fee824002d10 100644 --- a/drivers/net/via-rhine.c +++ b/drivers/net/via-rhine.c @@ -30,8 +30,8 @@ */ #define DRV_NAME "via-rhine" -#define DRV_VERSION "1.4.0" -#define DRV_RELDATE "June-27-2006" +#define DRV_VERSION "1.4.1" +#define DRV_RELDATE "July-24-2006" /* A few user-configurable values. @@ -63,7 +63,11 @@ static const int multicast_filter_limit = 32; There are no ill effects from too-large receive rings. */ #define TX_RING_SIZE 16 #define TX_QUEUE_LEN 10 /* Limit ring entries actually used. */ +#ifdef CONFIG_VIA_RHINE_NAPI +#define RX_RING_SIZE 64 +#else #define RX_RING_SIZE 16 +#endif /* Operational parameters that usually are not changed. */ @@ -396,7 +400,7 @@ static void rhine_tx_timeout(struct net_device *dev); static int rhine_start_tx(struct sk_buff *skb, struct net_device *dev); static irqreturn_t rhine_interrupt(int irq, void *dev_instance, struct pt_regs *regs); static void rhine_tx(struct net_device *dev); -static void rhine_rx(struct net_device *dev); +static int rhine_rx(struct net_device *dev, int limit); static void rhine_error(struct net_device *dev, int intr_status); static void rhine_set_rx_mode(struct net_device *dev); static struct net_device_stats *rhine_get_stats(struct net_device *dev); @@ -564,6 +568,32 @@ static void rhine_poll(struct net_device *dev) } #endif +#ifdef CONFIG_VIA_RHINE_NAPI +static int rhine_napipoll(struct net_device *dev, int *budget) +{ + struct rhine_private *rp = netdev_priv(dev); + void __iomem *ioaddr = rp->base; + int done, limit = min(dev->quota, *budget); + + done = rhine_rx(dev, limit); + *budget -= done; + dev->quota -= done; + + if (done < limit) { + netif_rx_complete(dev); + + iowrite16(IntrRxDone | IntrRxErr | IntrRxEmpty| IntrRxOverflow | + IntrRxDropped | IntrRxNoBuf | IntrTxAborted | + IntrTxDone | IntrTxError | IntrTxUnderrun | + IntrPCIErr | IntrStatsMax | IntrLinkChange, + ioaddr + IntrEnable); + return 0; + } + else + return 1; +} +#endif + static void rhine_hw_init(struct net_device *dev, long pioaddr) { struct rhine_private *rp = netdev_priv(dev); @@ -743,6 +773,10 @@ static int __devinit rhine_init_one(struct pci_dev *pdev, dev->watchdog_timeo = TX_TIMEOUT; #ifdef CONFIG_NET_POLL_CONTROLLER dev->poll_controller = rhine_poll; +#endif +#ifdef CONFIG_VIA_RHINE_NAPI + dev->poll = rhine_napipoll; + dev->weight = 64; #endif if (rp->quirks & rqRhineI) dev->features |= NETIF_F_SG|NETIF_F_HW_CSUM; @@ -1165,6 +1199,7 @@ static void rhine_tx_timeout(struct net_device *dev) dev->trans_start = jiffies; rp->stats.tx_errors++; netif_wake_queue(dev); + netif_poll_enable(dev); } static int rhine_start_tx(struct sk_buff *skb, struct net_device *dev) @@ -1268,8 +1303,18 @@ static irqreturn_t rhine_interrupt(int irq, void *dev_instance, struct pt_regs * dev->name, intr_status); if (intr_status & (IntrRxDone | IntrRxErr | IntrRxDropped | - IntrRxWakeUp | IntrRxEmpty | IntrRxNoBuf)) - rhine_rx(dev); + IntrRxWakeUp | IntrRxEmpty | IntrRxNoBuf)) { +#ifdef CONFIG_VIA_RHINE_NAPI + iowrite16(IntrTxAborted | + IntrTxDone | IntrTxError | IntrTxUnderrun | + IntrPCIErr | IntrStatsMax | IntrLinkChange, + ioaddr + IntrEnable); + + netif_rx_schedule(dev); +#else + rhine_rx(dev, RX_RING_SIZE); +#endif + } if (intr_status & (IntrTxErrSummary | IntrTxDone)) { if (intr_status & IntrTxErrSummary) { @@ -1367,13 +1412,12 @@ static void rhine_tx(struct net_device *dev) spin_unlock(&rp->lock); } -/* This routine is logically part of the interrupt handler, but isolated - for clarity and better register allocation. */ -static void rhine_rx(struct net_device *dev) +/* Process up to limit frames from receive ring */ +static int rhine_rx(struct net_device *dev, int limit) { struct rhine_private *rp = netdev_priv(dev); + int count; int entry = rp->cur_rx % RX_RING_SIZE; - int boguscnt = rp->dirty_rx + RX_RING_SIZE - rp->cur_rx; if (debug > 4) { printk(KERN_DEBUG "%s: rhine_rx(), entry %d status %8.8x.\n", @@ -1382,16 +1426,18 @@ static void rhine_rx(struct net_device *dev) } /* If EOP is set on the next entry, it's a new packet. Send it up. */ - while (!(rp->rx_head_desc->rx_status & cpu_to_le32(DescOwn))) { + for (count = 0; count < limit; ++count) { struct rx_desc *desc = rp->rx_head_desc; u32 desc_status = le32_to_cpu(desc->rx_status); int data_size = desc_status >> 16; + if (desc_status & DescOwn) + break; + if (debug > 4) printk(KERN_DEBUG "rhine_rx() status is %8.8x.\n", desc_status); - if (--boguscnt < 0) - break; + if ((desc_status & (RxWholePkt | RxErr)) != RxWholePkt) { if ((desc_status & RxWholePkt) != RxWholePkt) { printk(KERN_WARNING "%s: Oversized Ethernet " @@ -1460,7 +1506,11 @@ static void rhine_rx(struct net_device *dev) PCI_DMA_FROMDEVICE); } skb->protocol = eth_type_trans(skb, dev); +#ifdef CONFIG_VIA_RHINE_NAPI + netif_receive_skb(skb); +#else netif_rx(skb); +#endif dev->last_rx = jiffies; rp->stats.rx_bytes += pkt_len; rp->stats.rx_packets++; @@ -1487,6 +1537,8 @@ static void rhine_rx(struct net_device *dev) } rp->rx_ring[entry].rx_status = cpu_to_le32(DescOwn); } + + return count; } /* @@ -1776,6 +1828,7 @@ static int rhine_close(struct net_device *dev) spin_lock_irq(&rp->lock); netif_stop_queue(dev); + netif_poll_disable(dev); if (debug > 1) printk(KERN_DEBUG "%s: Shutting down ethercard, " From ab1976682f31661a898b92593bccfeae14d0a0ae Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Mon, 14 Aug 2006 23:00:18 -0700 Subject: [PATCH 238/488] [PATCH] via-rhine: NAPI poll enable The poll_enable should be in init_registers before enabling interrupts, not in tx_timeout. Thanks for spotting it Roger. Signed-off-by: Stephen Hemminger Cc: Roger Luethi Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/via-rhine.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/via-rhine.c b/drivers/net/via-rhine.c index fee824002d10..fda367b92a28 100644 --- a/drivers/net/via-rhine.c +++ b/drivers/net/via-rhine.c @@ -1048,6 +1048,8 @@ static void init_registers(struct net_device *dev) rhine_set_rx_mode(dev); + netif_poll_enable(dev); + /* Enable interrupts by setting the interrupt mask. */ iowrite16(IntrRxDone | IntrRxErr | IntrRxEmpty| IntrRxOverflow | IntrRxDropped | IntrRxNoBuf | IntrTxAborted | @@ -1199,7 +1201,6 @@ static void rhine_tx_timeout(struct net_device *dev) dev->trans_start = jiffies; rp->stats.tx_errors++; netif_wake_queue(dev); - netif_poll_enable(dev); } static int rhine_start_tx(struct sk_buff *skb, struct net_device *dev) From 76cb4fe7c0926c2c59f4a36ab169aa2d547c93d1 Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 14 Aug 2006 23:00:20 -0700 Subject: [PATCH 239/488] [PATCH] lockdep: fix smc91x When booting using root-nfs, I'm seeing (independently) two lockdep dumps in the smc91x driver. The patch below fixes both. Both dumps look like real locking issues. Nico - please review and ack if you think the patch is correct. Dump 1: Sending DHCP requests . ================================= [ INFO: inconsistent lock state ] Signed-off-by: Jeff Garzik --- drivers/net/smc91x.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/net/smc91x.c b/drivers/net/smc91x.c index 3d8dcb6c8758..cf62373b808b 100644 --- a/drivers/net/smc91x.c +++ b/drivers/net/smc91x.c @@ -321,12 +321,12 @@ static void smc_reset(struct net_device *dev) DBG(2, "%s: %s\n", dev->name, __FUNCTION__); /* Disable all interrupts, block TX tasklet */ - spin_lock(&lp->lock); + spin_lock_irq(&lp->lock); SMC_SELECT_BANK(2); SMC_SET_INT_MASK(0); pending_skb = lp->pending_tx_skb; lp->pending_tx_skb = NULL; - spin_unlock(&lp->lock); + spin_unlock_irq(&lp->lock); /* free any pending tx skb */ if (pending_skb) { @@ -448,12 +448,12 @@ static void smc_shutdown(struct net_device *dev) DBG(2, "%s: %s\n", CARDNAME, __FUNCTION__); /* no more interrupts for me */ - spin_lock(&lp->lock); + spin_lock_irq(&lp->lock); SMC_SELECT_BANK(2); SMC_SET_INT_MASK(0); pending_skb = lp->pending_tx_skb; lp->pending_tx_skb = NULL; - spin_unlock(&lp->lock); + spin_unlock_irq(&lp->lock); if (pending_skb) dev_kfree_skb(pending_skb); From b933b4d93888b584eda826bffa68a3a1283f8411 Mon Sep 17 00:00:00 2001 From: Roger Luethi Date: Mon, 14 Aug 2006 23:00:21 -0700 Subject: [PATCH 240/488] [PATCH] via-rhine: add option avoid_D3 (work around broken BIOSes) It looks like broken BIOSes controlling Rhine chips will remain in use in significant numbers; such systems fail to come up via PXE after they have been put into D3 (power-saving) mode. This patch adds a module option for disabling the call that puts the chip to sleep. Signed-off-by: Roger Luethi Cc: Jeff Garzik Cc: Joerg Bashir Cc: Tim Phipps Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/via-rhine.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/drivers/net/via-rhine.c b/drivers/net/via-rhine.c index fda367b92a28..ae971080e2e4 100644 --- a/drivers/net/via-rhine.c +++ b/drivers/net/via-rhine.c @@ -44,6 +44,10 @@ static int max_interrupt_work = 20; Setting to > 1518 effectively disables this feature. */ static int rx_copybreak; +/* Work-around for broken BIOSes: they are unable to get the chip back out of + power state D3 so PXE booting fails. bootparam(7): via-rhine.avoid_D3=1 */ +static int avoid_D3; + /* * In case you are looking for 'options[]' or 'full_duplex[]', they * are gone. Use ethtool(8) instead. @@ -120,9 +124,11 @@ MODULE_LICENSE("GPL"); module_param(max_interrupt_work, int, 0); module_param(debug, int, 0); module_param(rx_copybreak, int, 0); +module_param(avoid_D3, bool, 0); MODULE_PARM_DESC(max_interrupt_work, "VIA Rhine maximum events handled per interrupt"); MODULE_PARM_DESC(debug, "VIA Rhine debug level (0-7)"); MODULE_PARM_DESC(rx_copybreak, "VIA Rhine copy breakpoint for copy-only-tiny-frames"); +MODULE_PARM_DESC(avoid_D3, "Avoid power state D3 (work-around for broken BIOSes)"); /* Theory of Operation @@ -823,6 +829,9 @@ static int __devinit rhine_init_one(struct pci_dev *pdev, } } rp->mii_if.phy_id = phy_id; + if (debug > 1 && avoid_D3) + printk(KERN_INFO "%s: No D3 power state at shutdown.\n", + dev->name); return 0; @@ -1911,7 +1920,8 @@ static void rhine_shutdown (struct pci_dev *pdev) } /* Hit power state D3 (sleep) */ - iowrite8(ioread8(ioaddr + StickyHW) | 0x03, ioaddr + StickyHW); + if (!avoid_D3) + iowrite8(ioread8(ioaddr + StickyHW) | 0x03, ioaddr + StickyHW); /* TODO: Check use of pci_enable_wake() */ From 7e29f8bf39de372e3903a0b12f34285d30a8a244 Mon Sep 17 00:00:00 2001 From: David Brownell Date: Mon, 14 Aug 2006 23:00:22 -0700 Subject: [PATCH 241/488] [PATCH] build fixes: smc91x Unclear how these bugs arrived, presumably from incorrect cleanup of the 16-bit-only paths, but smc91x wouldn't build for OMAP. Signed-off-by: David Brownell Cc: Nicolas Pitre Cc: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/smc91x.h | 6 ------ 1 file changed, 6 deletions(-) diff --git a/drivers/net/smc91x.h b/drivers/net/smc91x.h index 95ac2ddca433..7aa7fbac8224 100644 --- a/drivers/net/smc91x.h +++ b/drivers/net/smc91x.h @@ -184,16 +184,10 @@ SMC_outw(u16 val, void __iomem *ioaddr, int reg) #define SMC_IO_SHIFT 0 #define SMC_NOWAIT 1 -#define SMC_inb(a, r) readb((a) + (r)) -#define SMC_outb(v, a, r) writeb(v, (a) + (r)) #define SMC_inw(a, r) readw((a) + (r)) #define SMC_outw(v, a, r) writew(v, (a) + (r)) #define SMC_insw(a, r, p, l) readsw((a) + (r), p, l) #define SMC_outsw(a, r, p, l) writesw((a) + (r), p, l) -#define SMC_inl(a, r) readl((a) + (r)) -#define SMC_outl(v, a, r) writel(v, (a) + (r)) -#define SMC_insl(a, r, p, l) readsl((a) + (r), p, l) -#define SMC_outsl(a, r, p, l) writesl((a) + (r), p, l) #include #include From b68a60e598c0d1e738c807c47cb181e8cc52a0d8 Mon Sep 17 00:00:00 2001 From: Jim Lewis Date: Mon, 14 Aug 2006 23:00:23 -0700 Subject: [PATCH 242/488] [PATCH] Add ethtool -g support to Spidernet network driver Add ethtool -g (show ring sizes) support to the Spidernet network driver. Signed-off-by: James K Lewis Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/spider_net.c | 12 +++++++----- drivers/net/spider_net.h | 3 +++ drivers/net/spider_net_ethtool.c | 13 +++++++++++++ 3 files changed, 23 insertions(+), 5 deletions(-) diff --git a/drivers/net/spider_net.c b/drivers/net/spider_net.c index 647f62e9707d..88907218457a 100644 --- a/drivers/net/spider_net.c +++ b/drivers/net/spider_net.c @@ -1611,13 +1611,12 @@ spider_net_open(struct net_device *netdev) int result; result = -ENOMEM; - if (spider_net_init_chain(card, &card->tx_chain, - card->descr, - PCI_DMA_TODEVICE, tx_descriptors)) + if (spider_net_init_chain(card, &card->tx_chain, card->descr, + PCI_DMA_TODEVICE, card->tx_desc)) goto alloc_tx_failed; if (spider_net_init_chain(card, &card->rx_chain, - card->descr + tx_descriptors, - PCI_DMA_FROMDEVICE, rx_descriptors)) + card->descr + card->rx_desc, + PCI_DMA_FROMDEVICE, card->rx_desc)) goto alloc_rx_failed; /* allocate rx skbs */ @@ -2005,6 +2004,9 @@ spider_net_setup_netdev(struct spider_net_card *card) card->options.rx_csum = SPIDER_NET_RX_CSUM_DEFAULT; + card->tx_desc = tx_descriptors; + card->rx_desc = rx_descriptors; + spider_net_setup_netdev_ops(netdev); netdev->features = NETIF_F_HW_CSUM | NETIF_F_LLTX; diff --git a/drivers/net/spider_net.h b/drivers/net/spider_net.h index f6dcf180ae3d..30407cdf0892 100644 --- a/drivers/net/spider_net.h +++ b/drivers/net/spider_net.h @@ -440,6 +440,9 @@ struct spider_net_card { /* for ethtool */ int msg_enable; + int rx_desc; + int tx_desc; + struct spider_net_descr descr[0]; }; diff --git a/drivers/net/spider_net_ethtool.c b/drivers/net/spider_net_ethtool.c index a5bb0b7633af..02209222b8c9 100644 --- a/drivers/net/spider_net_ethtool.c +++ b/drivers/net/spider_net_ethtool.c @@ -130,6 +130,18 @@ spider_net_ethtool_set_tx_csum(struct net_device *netdev, uint32_t data) return 0; } +static void +spider_net_ethtool_get_ringparam(struct net_device *netdev, + struct ethtool_ringparam *ering) +{ + struct spider_net_card *card = netdev->priv; + + ering->tx_max_pending = SPIDER_NET_TX_DESCRIPTORS_MAX; + ering->tx_pending = card->tx_desc; + ering->rx_max_pending = SPIDER_NET_RX_DESCRIPTORS_MAX; + ering->rx_pending = card->rx_desc; +} + struct ethtool_ops spider_net_ethtool_ops = { .get_settings = spider_net_ethtool_get_settings, .get_drvinfo = spider_net_ethtool_get_drvinfo, @@ -141,5 +153,6 @@ struct ethtool_ops spider_net_ethtool_ops = { .set_rx_csum = spider_net_ethtool_set_rx_csum, .get_tx_csum = spider_net_ethtool_get_tx_csum, .set_tx_csum = spider_net_ethtool_set_tx_csum, + .get_ringparam = spider_net_ethtool_get_ringparam, }; From 239e44e1f05e2163ee066c07a753f9fb445979b2 Mon Sep 17 00:00:00 2001 From: "Edgar E. Iglesias" Date: Mon, 14 Aug 2006 23:00:24 -0700 Subject: [PATCH 243/488] [PATCH] skge: remember to run netif_poll_disable() Signed-off-by: Edgar E. Iglesias Cc: Stephen Hemminger Cc: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/skge.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/skge.c b/drivers/net/skge.c index 7de9a07b2ac2..ad878dfddef4 100644 --- a/drivers/net/skge.c +++ b/drivers/net/skge.c @@ -2211,6 +2211,7 @@ static int skge_up(struct net_device *dev) skge_write8(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_START | CSR_IRQ_CL_F); skge_led(skge, LED_MODE_ON); + netif_poll_enable(dev); return 0; free_rx_ring: @@ -2279,6 +2280,7 @@ static int skge_down(struct net_device *dev) skge_led(skge, LED_MODE_OFF); + netif_poll_disable(dev); skge_tx_clean(skge); skge_rx_clean(skge); From 3d8f3f3c3697a7603a802427c9226f5dfe6d67ad Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Mon, 14 Aug 2006 23:00:27 -0700 Subject: [PATCH 244/488] [PATCH] s390: fix arp_tbl lock usage in qeth qeth: bhs must be disabled when accessing neighbour tables. ================================= [ INFO: inconsistent lock state ] Signed-off-by: Jeff Garzik --- drivers/s390/net/qeth_main.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/s390/net/qeth_main.c b/drivers/s390/net/qeth_main.c index 5fff1f93973a..e1327b8fce00 100644 --- a/drivers/s390/net/qeth_main.c +++ b/drivers/s390/net/qeth_main.c @@ -8510,9 +8510,9 @@ static int qeth_ipv6_init(void) { qeth_old_arp_constructor = arp_tbl.constructor; - write_lock(&arp_tbl.lock); + write_lock_bh(&arp_tbl.lock); arp_tbl.constructor = qeth_arp_constructor; - write_unlock(&arp_tbl.lock); + write_unlock_bh(&arp_tbl.lock); arp_direct_ops = (struct neigh_ops*) kmalloc(sizeof(struct neigh_ops), GFP_KERNEL); @@ -8528,9 +8528,9 @@ qeth_ipv6_init(void) static void qeth_ipv6_uninit(void) { - write_lock(&arp_tbl.lock); + write_lock_bh(&arp_tbl.lock); arp_tbl.constructor = qeth_old_arp_constructor; - write_unlock(&arp_tbl.lock); + write_unlock_bh(&arp_tbl.lock); kfree(arp_direct_ops); } #endif /* CONFIG_QETH_IPV6 */ From ec42cdb624059bb9d9d1accca5ed4345bf8f5fda Mon Sep 17 00:00:00 2001 From: Alexey Dobriyan Date: Mon, 14 Aug 2006 23:00:28 -0700 Subject: [PATCH 245/488] [PATCH] xircom_cb: wire up errors from pci_register_driver() Signed-off-by: Alexey Dobriyan Cc: Jeff Garzik Cc: Dominik Brodowski Cc: Valerie Henson Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/tulip/xircom_cb.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/tulip/xircom_cb.c b/drivers/net/tulip/xircom_cb.c index f874e4f6ccf6..cf43390d2c80 100644 --- a/drivers/net/tulip/xircom_cb.c +++ b/drivers/net/tulip/xircom_cb.c @@ -1264,8 +1264,7 @@ static void investigate_write_descriptor(struct net_device *dev, struct xircom_p static int __init xircom_init(void) { - pci_register_driver(&xircom_ops); - return 0; + return pci_register_driver(&xircom_ops); } static void __exit xircom_exit(void) From 11b0bacd717c285c94dbb56505a28434b34f0639 Mon Sep 17 00:00:00 2001 From: Vitaly Bordug Date: Mon, 14 Aug 2006 23:00:29 -0700 Subject: [PATCH 246/488] [PATCH] PAL: Support of the fixed PHY This makes it possible for HW PHY-less boards to utilize PAL goodies. Generic routines to connect to fixed PHY are provided, as well as ability to specify software callback that fills up link, speed, etc. information into PHY descriptor (the latter feature not tested so far). Signed-off-by: Vitaly Bordug Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/phy/Kconfig | 17 ++ drivers/net/phy/Makefile | 1 + drivers/net/phy/fixed.c | 358 +++++++++++++++++++++++++++++++++++ drivers/net/phy/mdio_bus.c | 1 + drivers/net/phy/phy_device.c | 51 +++-- include/linux/phy.h | 1 + 6 files changed, 408 insertions(+), 21 deletions(-) create mode 100644 drivers/net/phy/fixed.c diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig index 2ba6d3a40e2e..b79ec0d7480f 100644 --- a/drivers/net/phy/Kconfig +++ b/drivers/net/phy/Kconfig @@ -56,5 +56,22 @@ config SMSC_PHY ---help--- Currently supports the LAN83C185 PHY +config FIXED_PHY + tristate "Drivers for PHY emulation on fixed speed/link" + depends on PHYLIB + ---help--- + Adds the driver to PHY layer to cover the boards that do not have any PHY bound, + but with the ability to manipulate with speed/link in software. The relavant MII + speed/duplex parameters could be effectively handled in user-specified fuction. + Currently tested with mpc866ads. + +config FIXED_MII_10_FDX + bool "Emulation for 10M Fdx fixed PHY behavior" + depends on FIXED_PHY + +config FIXED_MII_100_FDX + bool "Emulation for 100M Fdx fixed PHY behavior" + depends on FIXED_PHY + endmenu diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile index a00e61942525..320f8323123f 100644 --- a/drivers/net/phy/Makefile +++ b/drivers/net/phy/Makefile @@ -10,3 +10,4 @@ obj-$(CONFIG_LXT_PHY) += lxt.o obj-$(CONFIG_QSEMI_PHY) += qsemi.o obj-$(CONFIG_SMSC_PHY) += smsc.o obj-$(CONFIG_VITESSE_PHY) += vitesse.o +obj-$(CONFIG_FIXED_PHY) += fixed.o diff --git a/drivers/net/phy/fixed.c b/drivers/net/phy/fixed.c new file mode 100644 index 000000000000..341036df4710 --- /dev/null +++ b/drivers/net/phy/fixed.c @@ -0,0 +1,358 @@ +/* + * drivers/net/phy/fixed.c + * + * Driver for fixed PHYs, when transceiver is able to operate in one fixed mode. + * + * Author: Vitaly Bordug + * + * Copyright (c) 2006 MontaVista Software, Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#define MII_REGS_NUM 7 + +/* + The idea is to emulate normal phy behavior by responding with + pre-defined values to mii BMCR read, so that read_status hook could + take all the needed info. +*/ + +struct fixed_phy_status { + u8 link; + u16 speed; + u8 duplex; +}; + +/*----------------------------------------------------------------------------- + * Private information hoder for mii_bus + *-----------------------------------------------------------------------------*/ +struct fixed_info { + u16 *regs; + u8 regs_num; + struct fixed_phy_status phy_status; + struct phy_device *phydev; /* pointer to the container */ + /* link & speed cb */ + int(*link_update)(struct net_device*, struct fixed_phy_status*); + +}; + +/*----------------------------------------------------------------------------- + * If something weird is required to be done with link/speed, + * network driver is able to assign a function to implement this. + * May be useful for PHY's that need to be software-driven. + *-----------------------------------------------------------------------------*/ +int fixed_mdio_set_link_update(struct phy_device* phydev, + int(*link_update)(struct net_device*, struct fixed_phy_status*)) +{ + struct fixed_info *fixed; + + if(link_update == NULL) + return -EINVAL; + + if(phydev) { + if(phydev->bus) { + fixed = phydev->bus->priv; + fixed->link_update = link_update; + return 0; + } + } + return -EINVAL; +} +EXPORT_SYMBOL(fixed_mdio_set_link_update); + +/*----------------------------------------------------------------------------- + * This is used for updating internal mii regs from the status + *-----------------------------------------------------------------------------*/ +static int fixed_mdio_update_regs(struct fixed_info *fixed) +{ + u16 *regs = fixed->regs; + u16 bmsr = 0; + u16 bmcr = 0; + + if(!regs) { + printk(KERN_ERR "%s: regs not set up", __FUNCTION__); + return -EINVAL; + } + + if(fixed->phy_status.link) + bmsr |= BMSR_LSTATUS; + + if(fixed->phy_status.duplex) { + bmcr |= BMCR_FULLDPLX; + + switch ( fixed->phy_status.speed ) { + case 100: + bmsr |= BMSR_100FULL; + bmcr |= BMCR_SPEED100; + break; + + case 10: + bmsr |= BMSR_10FULL; + break; + } + } else { + switch ( fixed->phy_status.speed ) { + case 100: + bmsr |= BMSR_100HALF; + bmcr |= BMCR_SPEED100; + break; + + case 10: + bmsr |= BMSR_100HALF; + break; + } + } + + regs[MII_BMCR] = bmcr; + regs[MII_BMSR] = bmsr | 0x800; /*we are always capable of 10 hdx*/ + + return 0; +} + +static int fixed_mii_read(struct mii_bus *bus, int phy_id, int location) +{ + struct fixed_info *fixed = bus->priv; + + /* if user has registered link update callback, use it */ + if(fixed->phydev) + if(fixed->phydev->attached_dev) { + if(fixed->link_update) { + fixed->link_update(fixed->phydev->attached_dev, + &fixed->phy_status); + fixed_mdio_update_regs(fixed); + } + } + + if ((unsigned int)location >= fixed->regs_num) + return -1; + return fixed->regs[location]; +} + +static int fixed_mii_write(struct mii_bus *bus, int phy_id, int location, u16 val) +{ + /* do nothing for now*/ + return 0; +} + +static int fixed_mii_reset(struct mii_bus *bus) +{ + /*nothing here - no way/need to reset it*/ + return 0; +} + +static int fixed_config_aneg(struct phy_device *phydev) +{ + /* :TODO:03/13/2006 09:45:37 PM:: + The full autoneg funcionality can be emulated, + but no need to have anything here for now + */ + return 0; +} + +/*----------------------------------------------------------------------------- + * the manual bind will do the magic - with phy_id_mask == 0 + * match will never return true... + *-----------------------------------------------------------------------------*/ +static struct phy_driver fixed_mdio_driver = { + .name = "Fixed PHY", + .features = PHY_BASIC_FEATURES, + .config_aneg = fixed_config_aneg, + .read_status = genphy_read_status, + .driver = { .owner = THIS_MODULE,}, +}; + +/*----------------------------------------------------------------------------- + * This func is used to create all the necessary stuff, bind + * the fixed phy driver and register all it on the mdio_bus_type. + * speed is either 10 or 100, duplex is boolean. + * number is used to create multiple fixed PHYs, so that several devices can + * utilize them simultaneously. + *-----------------------------------------------------------------------------*/ +static int fixed_mdio_register_device(int number, int speed, int duplex) +{ + struct mii_bus *new_bus; + struct fixed_info *fixed; + struct phy_device *phydev; + int err = 0; + + struct device* dev = kzalloc(sizeof(struct device), GFP_KERNEL); + + if (NULL == dev) + return -ENOMEM; + + new_bus = kzalloc(sizeof(struct mii_bus), GFP_KERNEL); + + if (NULL == new_bus) { + kfree(dev); + return -ENOMEM; + } + fixed = kzalloc(sizeof(struct fixed_info), GFP_KERNEL); + + if (NULL == fixed) { + kfree(dev); + kfree(new_bus); + return -ENOMEM; + } + + fixed->regs = kzalloc(MII_REGS_NUM*sizeof(int), GFP_KERNEL); + fixed->regs_num = MII_REGS_NUM; + fixed->phy_status.speed = speed; + fixed->phy_status.duplex = duplex; + fixed->phy_status.link = 1; + + new_bus->name = "Fixed MII Bus", + new_bus->read = &fixed_mii_read, + new_bus->write = &fixed_mii_write, + new_bus->reset = &fixed_mii_reset, + + /*set up workspace*/ + fixed_mdio_update_regs(fixed); + new_bus->priv = fixed; + + new_bus->dev = dev; + dev_set_drvdata(dev, new_bus); + + /* create phy_device and register it on the mdio bus */ + phydev = phy_device_create(new_bus, 0, 0); + + /* + Put the phydev pointer into the fixed pack so that bus read/write code could + be able to access for instance attached netdev. Well it doesn't have to do + so, only in case of utilizing user-specified link-update... + */ + fixed->phydev = phydev; + + if(NULL == phydev) { + err = -ENOMEM; + goto device_create_fail; + } + + phydev->irq = -1; + phydev->dev.bus = &mdio_bus_type; + + if(number) + snprintf(phydev->dev.bus_id, BUS_ID_SIZE, + "fixed_%d@%d:%d", number, speed, duplex); + else + snprintf(phydev->dev.bus_id, BUS_ID_SIZE, + "fixed@%d:%d", speed, duplex); + phydev->bus = new_bus; + + err = device_register(&phydev->dev); + if(err) { + printk(KERN_ERR "Phy %s failed to register\n", + phydev->dev.bus_id); + goto bus_register_fail; + } + + /* + the mdio bus has phy_id match... In order not to do it + artificially, we are binding the driver here by hand; + it will be the same for all the fixed phys anyway. + */ + down_write(&phydev->dev.bus->subsys.rwsem); + + phydev->dev.driver = &fixed_mdio_driver.driver; + + err = phydev->dev.driver->probe(&phydev->dev); + if(err < 0) { + printk(KERN_ERR "Phy %s: problems with fixed driver\n",phydev->dev.bus_id); + up_write(&phydev->dev.bus->subsys.rwsem); + goto probe_fail; + } + + device_bind_driver(&phydev->dev); + up_write(&phydev->dev.bus->subsys.rwsem); + + return 0; + +probe_fail: + device_unregister(&phydev->dev); +bus_register_fail: + kfree(phydev); +device_create_fail: + kfree(dev); + kfree(new_bus); + kfree(fixed); + + return err; +} + + +MODULE_DESCRIPTION("Fixed PHY device & driver for PAL"); +MODULE_AUTHOR("Vitaly Bordug"); +MODULE_LICENSE("GPL"); + +static int __init fixed_init(void) +{ + int ret; + int duplex = 0; + + /* register on the bus... Not expected to be matched with anything there... */ + phy_driver_register(&fixed_mdio_driver); + + /* So let the fun begin... + We will create several mdio devices here, and will bound the upper + driver to them. + + Then the external software can lookup the phy bus by searching + fixed@speed:duplex, e.g. fixed@100:1, to be connected to the + virtual 100M Fdx phy. + + In case several virtual PHYs required, the bus_id will be in form + fixed_@:, which make it able even to define + driver-specific link control callback, if for instance PHY is completely + SW-driven. + + */ + +#ifdef CONFIG_FIXED_MII_DUPLEX + duplex = 1; +#endif + +#ifdef CONFIG_FIXED_MII_100_FDX + fixed_mdio_register_device(0, 100, 1); +#endif + +#ifdef CONFIX_FIXED_MII_10_FDX + fixed_mdio_register_device(0, 10, 1); +#endif + return 0; +} + +static void __exit fixed_exit(void) +{ + phy_driver_unregister(&fixed_mdio_driver); + /* :WARNING:02/18/2006 04:32:40 AM:: Cleanup all the created stuff */ +} + +module_init(fixed_init); +module_exit(fixed_exit); diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c index 1dde390c164d..cf6660c93ffa 100644 --- a/drivers/net/phy/mdio_bus.c +++ b/drivers/net/phy/mdio_bus.c @@ -159,6 +159,7 @@ struct bus_type mdio_bus_type = { .suspend = mdio_bus_suspend, .resume = mdio_bus_resume, }; +EXPORT_SYMBOL(mdio_bus_type); int __init mdio_bus_init(void) { diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c index 1bc1e032c5d6..2d1ecfdc80db 100644 --- a/drivers/net/phy/phy_device.c +++ b/drivers/net/phy/phy_device.c @@ -45,6 +45,35 @@ static struct phy_driver genphy_driver; extern int mdio_bus_init(void); extern void mdio_bus_exit(void); +struct phy_device* phy_device_create(struct mii_bus *bus, int addr, int phy_id) +{ + struct phy_device *dev; + /* We allocate the device, and initialize the + * default values */ + dev = kcalloc(1, sizeof(*dev), GFP_KERNEL); + + if (NULL == dev) + return (struct phy_device*) PTR_ERR((void*)-ENOMEM); + + dev->speed = 0; + dev->duplex = -1; + dev->pause = dev->asym_pause = 0; + dev->link = 1; + + dev->autoneg = AUTONEG_ENABLE; + + dev->addr = addr; + dev->phy_id = phy_id; + dev->bus = bus; + + dev->state = PHY_DOWN; + + spin_lock_init(&dev->lock); + + return dev; +} +EXPORT_SYMBOL(phy_device_create); + /* get_phy_device * * description: Reads the ID registers of the PHY at addr on the @@ -78,27 +107,7 @@ struct phy_device * get_phy_device(struct mii_bus *bus, int addr) if (0xffffffff == phy_id) return NULL; - /* Otherwise, we allocate the device, and initialize the - * default values */ - dev = kcalloc(1, sizeof(*dev), GFP_KERNEL); - - if (NULL == dev) - return ERR_PTR(-ENOMEM); - - dev->speed = 0; - dev->duplex = -1; - dev->pause = dev->asym_pause = 0; - dev->link = 1; - - dev->autoneg = AUTONEG_ENABLE; - - dev->addr = addr; - dev->phy_id = phy_id; - dev->bus = bus; - - dev->state = PHY_DOWN; - - spin_lock_init(&dev->lock); + dev = phy_device_create(bus, addr, phy_id); return dev; } diff --git a/include/linux/phy.h b/include/linux/phy.h index 331521a10a2d..9447a57ee8a9 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -378,6 +378,7 @@ int phy_mii_ioctl(struct phy_device *phydev, struct mii_ioctl_data *mii_data, int cmd); int phy_start_interrupts(struct phy_device *phydev); void phy_print_status(struct phy_device *phydev); +struct phy_device* phy_device_create(struct mii_bus *bus, int addr, int phy_id); extern struct bus_type mdio_bus_type; #endif /* __PHY_H */ From 5b4b8454344a0391bb0f69fda0f4ec8e1f0d2fed Mon Sep 17 00:00:00 2001 From: Vitaly Bordug Date: Mon, 14 Aug 2006 23:00:30 -0700 Subject: [PATCH 247/488] [PATCH] FS_ENET: use PAL for mii management This patch should update the fs_enet infrastructure to utilize Phy Abstraction Layer subsystem. Along with the above, there are apparent bugfixes, overhaul and improvements. Signed-off-by: Vitaly Bordug Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/fs_enet/Makefile | 6 +- drivers/net/fs_enet/fec.h | 42 +++ drivers/net/fs_enet/fs_enet-main.c | 209 +++++++----- drivers/net/fs_enet/fs_enet-mii.c | 505 ----------------------------- drivers/net/fs_enet/fs_enet.h | 40 ++- drivers/net/fs_enet/mac-fcc.c | 32 +- drivers/net/fs_enet/mac-fec.c | 142 +------- drivers/net/fs_enet/mac-scc.c | 4 +- drivers/net/fs_enet/mii-bitbang.c | 448 ++++++++++++------------- drivers/net/fs_enet/mii-fec.c | 243 ++++++++++++++ drivers/net/fs_enet/mii-fixed.c | 91 ------ 11 files changed, 712 insertions(+), 1050 deletions(-) create mode 100644 drivers/net/fs_enet/fec.h delete mode 100644 drivers/net/fs_enet/fs_enet-mii.c create mode 100644 drivers/net/fs_enet/mii-fec.c delete mode 100644 drivers/net/fs_enet/mii-fixed.c diff --git a/drivers/net/fs_enet/Makefile b/drivers/net/fs_enet/Makefile index d6dd3f2fb43e..02d4dc18ba69 100644 --- a/drivers/net/fs_enet/Makefile +++ b/drivers/net/fs_enet/Makefile @@ -4,7 +4,7 @@ obj-$(CONFIG_FS_ENET) += fs_enet.o -obj-$(CONFIG_8xx) += mac-fec.o mac-scc.o -obj-$(CONFIG_8260) += mac-fcc.o +obj-$(CONFIG_8xx) += mac-fec.o mac-scc.o mii-fec.o +obj-$(CONFIG_CPM2) += mac-fcc.o mii-bitbang.o -fs_enet-objs := fs_enet-main.o fs_enet-mii.o mii-bitbang.o mii-fixed.o +fs_enet-objs := fs_enet-main.o diff --git a/drivers/net/fs_enet/fec.h b/drivers/net/fs_enet/fec.h new file mode 100644 index 000000000000..e980527e2b99 --- /dev/null +++ b/drivers/net/fs_enet/fec.h @@ -0,0 +1,42 @@ +#ifndef FS_ENET_FEC_H +#define FS_ENET_FEC_H + +/* CRC polynomium used by the FEC for the multicast group filtering */ +#define FEC_CRC_POLY 0x04C11DB7 + +#define FEC_MAX_MULTICAST_ADDRS 64 + +/* Interrupt events/masks. +*/ +#define FEC_ENET_HBERR 0x80000000U /* Heartbeat error */ +#define FEC_ENET_BABR 0x40000000U /* Babbling receiver */ +#define FEC_ENET_BABT 0x20000000U /* Babbling transmitter */ +#define FEC_ENET_GRA 0x10000000U /* Graceful stop complete */ +#define FEC_ENET_TXF 0x08000000U /* Full frame transmitted */ +#define FEC_ENET_TXB 0x04000000U /* A buffer was transmitted */ +#define FEC_ENET_RXF 0x02000000U /* Full frame received */ +#define FEC_ENET_RXB 0x01000000U /* A buffer was received */ +#define FEC_ENET_MII 0x00800000U /* MII interrupt */ +#define FEC_ENET_EBERR 0x00400000U /* SDMA bus error */ + +#define FEC_ECNTRL_PINMUX 0x00000004 +#define FEC_ECNTRL_ETHER_EN 0x00000002 +#define FEC_ECNTRL_RESET 0x00000001 + +#define FEC_RCNTRL_BC_REJ 0x00000010 +#define FEC_RCNTRL_PROM 0x00000008 +#define FEC_RCNTRL_MII_MODE 0x00000004 +#define FEC_RCNTRL_DRT 0x00000002 +#define FEC_RCNTRL_LOOP 0x00000001 + +#define FEC_TCNTRL_FDEN 0x00000004 +#define FEC_TCNTRL_HBC 0x00000002 +#define FEC_TCNTRL_GTS 0x00000001 + + + +/* + * Delay to wait for FEC reset command to complete (in us) + */ +#define FEC_RESET_DELAY 50 +#endif diff --git a/drivers/net/fs_enet/fs_enet-main.c b/drivers/net/fs_enet/fs_enet-main.c index f6abff5846b3..df62506a1787 100644 --- a/drivers/net/fs_enet/fs_enet-main.c +++ b/drivers/net/fs_enet/fs_enet-main.c @@ -37,6 +37,7 @@ #include #include #include +#include #include #include @@ -682,35 +683,6 @@ static void fs_free_irq(struct net_device *dev, int irq) (*fep->ops->post_free_irq)(dev, irq); } -/**********************************************************************************/ - -/* This interrupt occurs when the PHY detects a link change. */ -static irqreturn_t -fs_mii_link_interrupt(int irq, void *dev_id, struct pt_regs *regs) -{ - struct net_device *dev = dev_id; - struct fs_enet_private *fep; - const struct fs_platform_info *fpi; - - fep = netdev_priv(dev); - fpi = fep->fpi; - - /* - * Acknowledge the interrupt if possible. If we have not - * found the PHY yet we can't process or acknowledge the - * interrupt now. Instead we ignore this interrupt for now, - * which we can do since it is edge triggered. It will be - * acknowledged later by fs_enet_open(). - */ - if (!fep->phy) - return IRQ_NONE; - - fs_mii_ack_int(dev); - fs_mii_link_status_change_check(dev, 0); - - return IRQ_HANDLED; -} - static void fs_timeout(struct net_device *dev) { struct fs_enet_private *fep = netdev_priv(dev); @@ -722,10 +694,13 @@ static void fs_timeout(struct net_device *dev) spin_lock_irqsave(&fep->lock, flags); if (dev->flags & IFF_UP) { + phy_stop(fep->phydev); (*fep->ops->stop)(dev); (*fep->ops->restart)(dev); + phy_start(fep->phydev); } + phy_start(fep->phydev); wake = fep->tx_free && !(CBDR_SC(fep->cur_tx) & BD_ENET_TX_READY); spin_unlock_irqrestore(&fep->lock, flags); @@ -733,35 +708,112 @@ static void fs_timeout(struct net_device *dev) netif_wake_queue(dev); } +/*----------------------------------------------------------------------------- + * generic link-change handler - should be sufficient for most cases + *-----------------------------------------------------------------------------*/ +static void generic_adjust_link(struct net_device *dev) +{ + struct fs_enet_private *fep = netdev_priv(dev); + struct phy_device *phydev = fep->phydev; + int new_state = 0; + + if (phydev->link) { + + /* adjust to duplex mode */ + if (phydev->duplex != fep->oldduplex){ + new_state = 1; + fep->oldduplex = phydev->duplex; + } + + if (phydev->speed != fep->oldspeed) { + new_state = 1; + fep->oldspeed = phydev->speed; + } + + if (!fep->oldlink) { + new_state = 1; + fep->oldlink = 1; + netif_schedule(dev); + netif_carrier_on(dev); + netif_start_queue(dev); + } + + if (new_state) + fep->ops->restart(dev); + + } else if (fep->oldlink) { + new_state = 1; + fep->oldlink = 0; + fep->oldspeed = 0; + fep->oldduplex = -1; + netif_carrier_off(dev); + netif_stop_queue(dev); + } + + if (new_state && netif_msg_link(fep)) + phy_print_status(phydev); +} + + +static void fs_adjust_link(struct net_device *dev) +{ + struct fs_enet_private *fep = netdev_priv(dev); + unsigned long flags; + + spin_lock_irqsave(&fep->lock, flags); + + if(fep->ops->adjust_link) + fep->ops->adjust_link(dev); + else + generic_adjust_link(dev); + + spin_unlock_irqrestore(&fep->lock, flags); +} + +static int fs_init_phy(struct net_device *dev) +{ + struct fs_enet_private *fep = netdev_priv(dev); + struct phy_device *phydev; + + fep->oldlink = 0; + fep->oldspeed = 0; + fep->oldduplex = -1; + if(fep->fpi->bus_id) + phydev = phy_connect(dev, fep->fpi->bus_id, &fs_adjust_link, 0); + else { + printk("No phy bus ID specified in BSP code\n"); + return -EINVAL; + } + if (IS_ERR(phydev)) { + printk(KERN_ERR "%s: Could not attach to PHY\n", dev->name); + return PTR_ERR(phydev); + } + + fep->phydev = phydev; + + return 0; +} + + static int fs_enet_open(struct net_device *dev) { struct fs_enet_private *fep = netdev_priv(dev); - const struct fs_platform_info *fpi = fep->fpi; int r; + int err; /* Install our interrupt handler. */ r = fs_request_irq(dev, fep->interrupt, "fs_enet-mac", fs_enet_interrupt); if (r != 0) { printk(KERN_ERR DRV_MODULE_NAME - ": %s Could not allocate FEC IRQ!", dev->name); + ": %s Could not allocate FS_ENET IRQ!", dev->name); return -EINVAL; } - /* Install our phy interrupt handler */ - if (fpi->phy_irq != -1) { + err = fs_init_phy(dev); + if(err) + return err; - r = fs_request_irq(dev, fpi->phy_irq, "fs_enet-phy", fs_mii_link_interrupt); - if (r != 0) { - printk(KERN_ERR DRV_MODULE_NAME - ": %s Could not allocate PHY IRQ!", dev->name); - fs_free_irq(dev, fep->interrupt); - return -EINVAL; - } - } - - fs_mii_startup(dev); - netif_carrier_off(dev); - fs_mii_link_status_change_check(dev, 1); + phy_start(fep->phydev); return 0; } @@ -769,20 +821,19 @@ static int fs_enet_open(struct net_device *dev) static int fs_enet_close(struct net_device *dev) { struct fs_enet_private *fep = netdev_priv(dev); - const struct fs_platform_info *fpi = fep->fpi; unsigned long flags; netif_stop_queue(dev); netif_carrier_off(dev); - fs_mii_shutdown(dev); + phy_stop(fep->phydev); spin_lock_irqsave(&fep->lock, flags); (*fep->ops->stop)(dev); spin_unlock_irqrestore(&fep->lock, flags); /* release any irqs */ - if (fpi->phy_irq != -1) - fs_free_irq(dev, fpi->phy_irq); + phy_disconnect(fep->phydev); + fep->phydev = NULL; fs_free_irq(dev, fep->interrupt); return 0; @@ -830,33 +881,19 @@ static void fs_get_regs(struct net_device *dev, struct ethtool_regs *regs, static int fs_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) { struct fs_enet_private *fep = netdev_priv(dev); - unsigned long flags; - int rc; - - spin_lock_irqsave(&fep->lock, flags); - rc = mii_ethtool_gset(&fep->mii_if, cmd); - spin_unlock_irqrestore(&fep->lock, flags); - - return rc; + return phy_ethtool_gset(fep->phydev, cmd); } static int fs_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) { struct fs_enet_private *fep = netdev_priv(dev); - unsigned long flags; - int rc; - - spin_lock_irqsave(&fep->lock, flags); - rc = mii_ethtool_sset(&fep->mii_if, cmd); - spin_unlock_irqrestore(&fep->lock, flags); - - return rc; + phy_ethtool_sset(fep->phydev, cmd); + return 0; } static int fs_nway_reset(struct net_device *dev) { - struct fs_enet_private *fep = netdev_priv(dev); - return mii_nway_restart(&fep->mii_if); + return 0; } static u32 fs_get_msglevel(struct net_device *dev) @@ -898,7 +935,7 @@ static int fs_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) return -EINVAL; spin_lock_irqsave(&fep->lock, flags); - rc = generic_mii_ioctl(&fep->mii_if, mii, cmd, NULL); + rc = phy_mii_ioctl(fep->phydev, mii, cmd); spin_unlock_irqrestore(&fep->lock, flags); return rc; } @@ -1030,12 +1067,6 @@ static struct net_device *fs_init_instance(struct device *dev, } registered = 1; - err = fs_mii_connect(ndev); - if (err != 0) { - printk(KERN_ERR DRV_MODULE_NAME - ": %s fs_mii_connect failed.\n", ndev->name); - goto err; - } return ndev; @@ -1073,8 +1104,6 @@ static int fs_cleanup_instance(struct net_device *ndev) fpi = fep->fpi; - fs_mii_disconnect(ndev); - unregister_netdev(ndev); dma_free_coherent(fep->dev, (fpi->tx_ring + fpi->rx_ring) * sizeof(cbd_t), @@ -1196,17 +1225,39 @@ static int __init fs_init(void) r = setup_immap(); if (r != 0) return r; - r = driver_register(&fs_enet_fec_driver); - if (r != 0) - goto err; +#ifdef CONFIG_FS_ENET_HAS_FCC + /* let's insert mii stuff */ + r = fs_enet_mdio_bb_init(); + + if (r != 0) { + printk(KERN_ERR DRV_MODULE_NAME + "BB PHY init failed.\n"); + return r; + } r = driver_register(&fs_enet_fcc_driver); if (r != 0) goto err; +#endif +#ifdef CONFIG_FS_ENET_HAS_FEC + r = fs_enet_mdio_fec_init(); + if (r != 0) { + printk(KERN_ERR DRV_MODULE_NAME + "FEC PHY init failed.\n"); + return r; + } + + r = driver_register(&fs_enet_fec_driver); + if (r != 0) + goto err; +#endif + +#ifdef CONFIG_FS_ENET_HAS_SCC r = driver_register(&fs_enet_scc_driver); if (r != 0) goto err; +#endif return 0; err: diff --git a/drivers/net/fs_enet/fs_enet-mii.c b/drivers/net/fs_enet/fs_enet-mii.c deleted file mode 100644 index b7e6e21725cb..000000000000 --- a/drivers/net/fs_enet/fs_enet-mii.c +++ /dev/null @@ -1,505 +0,0 @@ -/* - * Combined Ethernet driver for Motorola MPC8xx and MPC82xx. - * - * Copyright (c) 2003 Intracom S.A. - * by Pantelis Antoniou - * - * 2005 (c) MontaVista Software, Inc. - * Vitaly Bordug - * - * Heavily based on original FEC driver by Dan Malek - * and modifications by Joakim Tjernlund - * - * This file is licensed under the terms of the GNU General Public License - * version 2. This program is licensed "as is" without any warranty of any - * kind, whether express or implied. - */ - - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include - -#include "fs_enet.h" - -/*************************************************/ - -/* - * Generic PHY support. - * Should work for all PHYs, but link change is detected by polling - */ - -static void generic_timer_callback(unsigned long data) -{ - struct net_device *dev = (struct net_device *)data; - struct fs_enet_private *fep = netdev_priv(dev); - - fep->phy_timer_list.expires = jiffies + HZ / 2; - - add_timer(&fep->phy_timer_list); - - fs_mii_link_status_change_check(dev, 0); -} - -static void generic_startup(struct net_device *dev) -{ - struct fs_enet_private *fep = netdev_priv(dev); - - fep->phy_timer_list.expires = jiffies + HZ / 2; /* every 500ms */ - fep->phy_timer_list.data = (unsigned long)dev; - fep->phy_timer_list.function = generic_timer_callback; - add_timer(&fep->phy_timer_list); -} - -static void generic_shutdown(struct net_device *dev) -{ - struct fs_enet_private *fep = netdev_priv(dev); - - del_timer_sync(&fep->phy_timer_list); -} - -/* ------------------------------------------------------------------------- */ -/* The Davicom DM9161 is used on the NETTA board */ - -/* register definitions */ - -#define MII_DM9161_ANAR 4 /* Aux. Config Register */ -#define MII_DM9161_ACR 16 /* Aux. Config Register */ -#define MII_DM9161_ACSR 17 /* Aux. Config/Status Register */ -#define MII_DM9161_10TCSR 18 /* 10BaseT Config/Status Reg. */ -#define MII_DM9161_INTR 21 /* Interrupt Register */ -#define MII_DM9161_RECR 22 /* Receive Error Counter Reg. */ -#define MII_DM9161_DISCR 23 /* Disconnect Counter Register */ - -static void dm9161_startup(struct net_device *dev) -{ - struct fs_enet_private *fep = netdev_priv(dev); - - fs_mii_write(dev, fep->mii_if.phy_id, MII_DM9161_INTR, 0x0000); - /* Start autonegotiation */ - fs_mii_write(dev, fep->mii_if.phy_id, MII_BMCR, 0x1200); - - set_current_state(TASK_UNINTERRUPTIBLE); - schedule_timeout(HZ*8); -} - -static void dm9161_ack_int(struct net_device *dev) -{ - struct fs_enet_private *fep = netdev_priv(dev); - - fs_mii_read(dev, fep->mii_if.phy_id, MII_DM9161_INTR); -} - -static void dm9161_shutdown(struct net_device *dev) -{ - struct fs_enet_private *fep = netdev_priv(dev); - - fs_mii_write(dev, fep->mii_if.phy_id, MII_DM9161_INTR, 0x0f00); -} - -/**********************************************************************************/ - -static const struct phy_info phy_info[] = { - { - .id = 0x00181b88, - .name = "DM9161", - .startup = dm9161_startup, - .ack_int = dm9161_ack_int, - .shutdown = dm9161_shutdown, - }, { - .id = 0, - .name = "GENERIC", - .startup = generic_startup, - .shutdown = generic_shutdown, - }, -}; - -/**********************************************************************************/ - -static int phy_id_detect(struct net_device *dev) -{ - struct fs_enet_private *fep = netdev_priv(dev); - const struct fs_platform_info *fpi = fep->fpi; - struct fs_enet_mii_bus *bus = fep->mii_bus; - int i, r, start, end, phytype, physubtype; - const struct phy_info *phy; - int phy_hwid, phy_id; - - phy_hwid = -1; - fep->phy = NULL; - - /* auto-detect? */ - if (fpi->phy_addr == -1) { - start = 1; - end = 32; - } else { /* direct */ - start = fpi->phy_addr; - end = start + 1; - } - - for (phy_id = start; phy_id < end; phy_id++) { - /* skip already used phy addresses on this bus */ - if (bus->usage_map & (1 << phy_id)) - continue; - r = fs_mii_read(dev, phy_id, MII_PHYSID1); - if (r == -1 || (phytype = (r & 0xffff)) == 0xffff) - continue; - r = fs_mii_read(dev, phy_id, MII_PHYSID2); - if (r == -1 || (physubtype = (r & 0xffff)) == 0xffff) - continue; - phy_hwid = (phytype << 16) | physubtype; - if (phy_hwid != -1) - break; - } - - if (phy_hwid == -1) { - printk(KERN_ERR DRV_MODULE_NAME - ": %s No PHY detected! range=0x%02x-0x%02x\n", - dev->name, start, end); - return -1; - } - - for (i = 0, phy = phy_info; i < ARRAY_SIZE(phy_info); i++, phy++) - if (phy->id == (phy_hwid >> 4) || phy->id == 0) - break; - - if (i >= ARRAY_SIZE(phy_info)) { - printk(KERN_ERR DRV_MODULE_NAME - ": %s PHY id 0x%08x is not supported!\n", - dev->name, phy_hwid); - return -1; - } - - fep->phy = phy; - - /* mark this address as used */ - bus->usage_map |= (1 << phy_id); - - printk(KERN_INFO DRV_MODULE_NAME - ": %s Phy @ 0x%x, type %s (0x%08x)%s\n", - dev->name, phy_id, fep->phy->name, phy_hwid, - fpi->phy_addr == -1 ? " (auto-detected)" : ""); - - return phy_id; -} - -void fs_mii_startup(struct net_device *dev) -{ - struct fs_enet_private *fep = netdev_priv(dev); - - if (fep->phy->startup) - (*fep->phy->startup) (dev); -} - -void fs_mii_shutdown(struct net_device *dev) -{ - struct fs_enet_private *fep = netdev_priv(dev); - - if (fep->phy->shutdown) - (*fep->phy->shutdown) (dev); -} - -void fs_mii_ack_int(struct net_device *dev) -{ - struct fs_enet_private *fep = netdev_priv(dev); - - if (fep->phy->ack_int) - (*fep->phy->ack_int) (dev); -} - -#define MII_LINK 0x0001 -#define MII_HALF 0x0002 -#define MII_FULL 0x0004 -#define MII_BASE4 0x0008 -#define MII_10M 0x0010 -#define MII_100M 0x0020 -#define MII_1G 0x0040 -#define MII_10G 0x0080 - -/* return full mii info at one gulp, with a usable form */ -static unsigned int mii_full_status(struct mii_if_info *mii) -{ - unsigned int status; - int bmsr, adv, lpa, neg; - struct fs_enet_private* fep = netdev_priv(mii->dev); - - /* first, a dummy read, needed to latch some MII phys */ - (void)mii->mdio_read(mii->dev, mii->phy_id, MII_BMSR); - bmsr = mii->mdio_read(mii->dev, mii->phy_id, MII_BMSR); - - /* no link */ - if ((bmsr & BMSR_LSTATUS) == 0) - return 0; - - status = MII_LINK; - - /* Lets look what ANEG says if it's supported - otherwize we shall - take the right values from the platform info*/ - if(!mii->force_media) { - /* autoneg not completed; don't bother */ - if ((bmsr & BMSR_ANEGCOMPLETE) == 0) - return 0; - - adv = (*mii->mdio_read)(mii->dev, mii->phy_id, MII_ADVERTISE); - lpa = (*mii->mdio_read)(mii->dev, mii->phy_id, MII_LPA); - - neg = lpa & adv; - } else { - neg = fep->fpi->bus_info->lpa; - } - - if (neg & LPA_100FULL) - status |= MII_FULL | MII_100M; - else if (neg & LPA_100BASE4) - status |= MII_FULL | MII_BASE4 | MII_100M; - else if (neg & LPA_100HALF) - status |= MII_HALF | MII_100M; - else if (neg & LPA_10FULL) - status |= MII_FULL | MII_10M; - else - status |= MII_HALF | MII_10M; - - return status; -} - -void fs_mii_link_status_change_check(struct net_device *dev, int init_media) -{ - struct fs_enet_private *fep = netdev_priv(dev); - struct mii_if_info *mii = &fep->mii_if; - unsigned int mii_status; - int ok_to_print, link, duplex, speed; - unsigned long flags; - - ok_to_print = netif_msg_link(fep); - - mii_status = mii_full_status(mii); - - if (!init_media && mii_status == fep->last_mii_status) - return; - - fep->last_mii_status = mii_status; - - link = !!(mii_status & MII_LINK); - duplex = !!(mii_status & MII_FULL); - speed = (mii_status & MII_100M) ? 100 : 10; - - if (link == 0) { - netif_carrier_off(mii->dev); - netif_stop_queue(dev); - if (!init_media) { - spin_lock_irqsave(&fep->lock, flags); - (*fep->ops->stop)(dev); - spin_unlock_irqrestore(&fep->lock, flags); - } - - if (ok_to_print) - printk(KERN_INFO "%s: link down\n", mii->dev->name); - - } else { - - mii->full_duplex = duplex; - - netif_carrier_on(mii->dev); - - spin_lock_irqsave(&fep->lock, flags); - fep->duplex = duplex; - fep->speed = speed; - (*fep->ops->restart)(dev); - spin_unlock_irqrestore(&fep->lock, flags); - - netif_start_queue(dev); - - if (ok_to_print) - printk(KERN_INFO "%s: link up, %dMbps, %s-duplex\n", - dev->name, speed, duplex ? "full" : "half"); - } -} - -/**********************************************************************************/ - -int fs_mii_read(struct net_device *dev, int phy_id, int location) -{ - struct fs_enet_private *fep = netdev_priv(dev); - struct fs_enet_mii_bus *bus = fep->mii_bus; - - unsigned long flags; - int ret; - - spin_lock_irqsave(&bus->mii_lock, flags); - ret = (*bus->mii_read)(bus, phy_id, location); - spin_unlock_irqrestore(&bus->mii_lock, flags); - - return ret; -} - -void fs_mii_write(struct net_device *dev, int phy_id, int location, int value) -{ - struct fs_enet_private *fep = netdev_priv(dev); - struct fs_enet_mii_bus *bus = fep->mii_bus; - unsigned long flags; - - spin_lock_irqsave(&bus->mii_lock, flags); - (*bus->mii_write)(bus, phy_id, location, value); - spin_unlock_irqrestore(&bus->mii_lock, flags); -} - -/*****************************************************************************/ - -/* list of all registered mii buses */ -static LIST_HEAD(fs_mii_bus_list); - -static struct fs_enet_mii_bus *lookup_bus(int method, int id) -{ - struct list_head *ptr; - struct fs_enet_mii_bus *bus; - - list_for_each(ptr, &fs_mii_bus_list) { - bus = list_entry(ptr, struct fs_enet_mii_bus, list); - if (bus->bus_info->method == method && - bus->bus_info->id == id) - return bus; - } - return NULL; -} - -static struct fs_enet_mii_bus *create_bus(const struct fs_mii_bus_info *bi) -{ - struct fs_enet_mii_bus *bus; - int ret = 0; - - bus = kmalloc(sizeof(*bus), GFP_KERNEL); - if (bus == NULL) { - ret = -ENOMEM; - goto err; - } - memset(bus, 0, sizeof(*bus)); - spin_lock_init(&bus->mii_lock); - bus->bus_info = bi; - bus->refs = 0; - bus->usage_map = 0; - - /* perform initialization */ - switch (bi->method) { - - case fsmii_fixed: - ret = fs_mii_fixed_init(bus); - if (ret != 0) - goto err; - break; - - case fsmii_bitbang: - ret = fs_mii_bitbang_init(bus); - if (ret != 0) - goto err; - break; -#ifdef CONFIG_FS_ENET_HAS_FEC - case fsmii_fec: - ret = fs_mii_fec_init(bus); - if (ret != 0) - goto err; - break; -#endif - default: - ret = -EINVAL; - goto err; - } - - list_add(&bus->list, &fs_mii_bus_list); - - return bus; - -err: - kfree(bus); - return ERR_PTR(ret); -} - -static void destroy_bus(struct fs_enet_mii_bus *bus) -{ - /* remove from bus list */ - list_del(&bus->list); - - /* nothing more needed */ - kfree(bus); -} - -int fs_mii_connect(struct net_device *dev) -{ - struct fs_enet_private *fep = netdev_priv(dev); - const struct fs_platform_info *fpi = fep->fpi; - struct fs_enet_mii_bus *bus = NULL; - - /* check method validity */ - switch (fpi->bus_info->method) { - case fsmii_fixed: - case fsmii_bitbang: - break; -#ifdef CONFIG_FS_ENET_HAS_FEC - case fsmii_fec: - break; -#endif - default: - printk(KERN_ERR DRV_MODULE_NAME - ": %s Unknown MII bus method (%d)!\n", - dev->name, fpi->bus_info->method); - return -EINVAL; - } - - bus = lookup_bus(fpi->bus_info->method, fpi->bus_info->id); - - /* if not found create new bus */ - if (bus == NULL) { - bus = create_bus(fpi->bus_info); - if (IS_ERR(bus)) { - printk(KERN_ERR DRV_MODULE_NAME - ": %s MII bus creation failure!\n", dev->name); - return PTR_ERR(bus); - } - } - - bus->refs++; - - fep->mii_bus = bus; - - fep->mii_if.dev = dev; - fep->mii_if.phy_id_mask = 0x1f; - fep->mii_if.reg_num_mask = 0x1f; - fep->mii_if.mdio_read = fs_mii_read; - fep->mii_if.mdio_write = fs_mii_write; - fep->mii_if.force_media = fpi->bus_info->disable_aneg; - fep->mii_if.phy_id = phy_id_detect(dev); - - return 0; -} - -void fs_mii_disconnect(struct net_device *dev) -{ - struct fs_enet_private *fep = netdev_priv(dev); - struct fs_enet_mii_bus *bus = NULL; - - bus = fep->mii_bus; - fep->mii_bus = NULL; - - if (--bus->refs <= 0) - destroy_bus(bus); -} diff --git a/drivers/net/fs_enet/fs_enet.h b/drivers/net/fs_enet/fs_enet.h index e7ec96c964a9..95022c005f75 100644 --- a/drivers/net/fs_enet/fs_enet.h +++ b/drivers/net/fs_enet/fs_enet.h @@ -5,6 +5,7 @@ #include #include #include +#include #include @@ -12,12 +13,30 @@ #ifdef CONFIG_CPM1 #include + +struct fec_info { + fec_t* fecp; + u32 mii_speed; +}; #endif #ifdef CONFIG_CPM2 #include #endif +/* This is used to operate with pins. + Note that the actual port size may + be different; cpm(s) handle it OK */ +struct bb_info { + u8 mdio_dat_msk; + u8 mdio_dir_msk; + u8 *mdio_dir; + u8 *mdio_dat; + u8 mdc_msk; + u8 *mdc_dat; + int delay; +}; + /* hw driver ops */ struct fs_ops { int (*setup_data)(struct net_device *dev); @@ -25,6 +44,7 @@ struct fs_ops { void (*free_bd)(struct net_device *dev); void (*cleanup_data)(struct net_device *dev); void (*set_multicast_list)(struct net_device *dev); + void (*adjust_link)(struct net_device *dev); void (*restart)(struct net_device *dev); void (*stop)(struct net_device *dev); void (*pre_request_irq)(struct net_device *dev, int irq); @@ -100,10 +120,6 @@ struct fs_enet_mii_bus { }; }; -int fs_mii_bitbang_init(struct fs_enet_mii_bus *bus); -int fs_mii_fixed_init(struct fs_enet_mii_bus *bus); -int fs_mii_fec_init(struct fs_enet_mii_bus *bus); - struct fs_enet_private { struct device *dev; /* pointer back to the device (must be initialized first) */ spinlock_t lock; /* during all ops except TX pckt processing */ @@ -130,7 +146,8 @@ struct fs_enet_private { struct fs_enet_mii_bus *mii_bus; int interrupt; - int duplex, speed; /* current settings */ + struct phy_device *phydev; + int oldduplex, oldspeed, oldlink; /* current settings */ /* event masks */ u32 ev_napi_rx; /* mask of NAPI rx events */ @@ -168,15 +185,9 @@ struct fs_enet_private { }; /***************************************************************************/ - -int fs_mii_read(struct net_device *dev, int phy_id, int location); -void fs_mii_write(struct net_device *dev, int phy_id, int location, int value); - -void fs_mii_startup(struct net_device *dev); -void fs_mii_shutdown(struct net_device *dev); -void fs_mii_ack_int(struct net_device *dev); - -void fs_mii_link_status_change_check(struct net_device *dev, int init_media); +int fs_enet_mdio_bb_init(void); +int fs_mii_fixed_init(struct fs_enet_mii_bus *bus); +int fs_enet_mdio_fec_init(void); void fs_init_bds(struct net_device *dev); void fs_cleanup_bds(struct net_device *dev); @@ -194,7 +205,6 @@ int fs_enet_platform_init(void); void fs_enet_platform_cleanup(void); /***************************************************************************/ - /* buffer descriptor access macros */ /* access macros */ diff --git a/drivers/net/fs_enet/mac-fcc.c b/drivers/net/fs_enet/mac-fcc.c index 64e20982c1fe..1ff2597b8495 100644 --- a/drivers/net/fs_enet/mac-fcc.c +++ b/drivers/net/fs_enet/mac-fcc.c @@ -34,6 +34,7 @@ #include #include #include +#include #include #include @@ -122,22 +123,32 @@ static int do_pd_setup(struct fs_enet_private *fep) /* Attach the memory for the FCC Parameter RAM */ r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "fcc_pram"); - fep->fcc.ep = (void *)r->start; - + fep->fcc.ep = (void *)ioremap(r->start, r->end - r->start + 1); if (fep->fcc.ep == NULL) return -EINVAL; r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "fcc_regs"); - fep->fcc.fccp = (void *)r->start; - + fep->fcc.fccp = (void *)ioremap(r->start, r->end - r->start + 1); if (fep->fcc.fccp == NULL) return -EINVAL; - fep->fcc.fcccp = (void *)fep->fpi->fcc_regs_c; + if (fep->fpi->fcc_regs_c) { + + fep->fcc.fcccp = (void *)fep->fpi->fcc_regs_c; + } else { + r = platform_get_resource_byname(pdev, IORESOURCE_MEM, + "fcc_regs_c"); + fep->fcc.fcccp = (void *)ioremap(r->start, + r->end - r->start + 1); + } if (fep->fcc.fcccp == NULL) return -EINVAL; + fep->fcc.mem = (void *)fep->fpi->mem_offset; + if (fep->fcc.mem == NULL) + return -EINVAL; + return 0; } @@ -155,8 +166,6 @@ static int setup_data(struct net_device *dev) if ((unsigned int)fep->fcc.idx >= 3) /* max 3 FCCs */ return -EINVAL; - fep->fcc.mem = (void *)fpi->mem_offset; - if (do_pd_setup(fep) != 0) return -EINVAL; @@ -394,7 +403,7 @@ static void restart(struct net_device *dev) /* adjust to speed (for RMII mode) */ if (fpi->use_rmii) { - if (fep->speed == 100) + if (fep->phydev->speed == 100) C8(fcccp, fcc_gfemr, 0x20); else S8(fcccp, fcc_gfemr, 0x20); @@ -420,7 +429,7 @@ static void restart(struct net_device *dev) S32(fccp, fcc_fpsmr, FCC_PSMR_RMII); /* adjust to duplex mode */ - if (fep->duplex) + if (fep->phydev->duplex) S32(fccp, fcc_fpsmr, FCC_PSMR_FDE | FCC_PSMR_LPB); else C32(fccp, fcc_fpsmr, FCC_PSMR_FDE | FCC_PSMR_LPB); @@ -486,7 +495,10 @@ static void rx_bd_done(struct net_device *dev) static void tx_kickstart(struct net_device *dev) { - /* nothing */ + struct fs_enet_private *fep = netdev_priv(dev); + fcc_t *fccp = fep->fcc.fccp; + + S32(fccp, fcc_ftodr, 0x80); } static u32 get_int_events(struct net_device *dev) diff --git a/drivers/net/fs_enet/mac-fec.c b/drivers/net/fs_enet/mac-fec.c index e09547077529..c2c5fd419bd0 100644 --- a/drivers/net/fs_enet/mac-fec.c +++ b/drivers/net/fs_enet/mac-fec.c @@ -46,6 +46,7 @@ #endif #include "fs_enet.h" +#include "fec.h" /*************************************************/ @@ -75,50 +76,8 @@ /* clear bits */ #define FC(_fecp, _reg, _v) FW(_fecp, _reg, FR(_fecp, _reg) & ~(_v)) - -/* CRC polynomium used by the FEC for the multicast group filtering */ -#define FEC_CRC_POLY 0x04C11DB7 - -#define FEC_MAX_MULTICAST_ADDRS 64 - -/* Interrupt events/masks. -*/ -#define FEC_ENET_HBERR 0x80000000U /* Heartbeat error */ -#define FEC_ENET_BABR 0x40000000U /* Babbling receiver */ -#define FEC_ENET_BABT 0x20000000U /* Babbling transmitter */ -#define FEC_ENET_GRA 0x10000000U /* Graceful stop complete */ -#define FEC_ENET_TXF 0x08000000U /* Full frame transmitted */ -#define FEC_ENET_TXB 0x04000000U /* A buffer was transmitted */ -#define FEC_ENET_RXF 0x02000000U /* Full frame received */ -#define FEC_ENET_RXB 0x01000000U /* A buffer was received */ -#define FEC_ENET_MII 0x00800000U /* MII interrupt */ -#define FEC_ENET_EBERR 0x00400000U /* SDMA bus error */ - -#define FEC_ECNTRL_PINMUX 0x00000004 -#define FEC_ECNTRL_ETHER_EN 0x00000002 -#define FEC_ECNTRL_RESET 0x00000001 - -#define FEC_RCNTRL_BC_REJ 0x00000010 -#define FEC_RCNTRL_PROM 0x00000008 -#define FEC_RCNTRL_MII_MODE 0x00000004 -#define FEC_RCNTRL_DRT 0x00000002 -#define FEC_RCNTRL_LOOP 0x00000001 - -#define FEC_TCNTRL_FDEN 0x00000004 -#define FEC_TCNTRL_HBC 0x00000002 -#define FEC_TCNTRL_GTS 0x00000001 - - -/* Make MII read/write commands for the FEC. -*/ -#define mk_mii_read(REG) (0x60020000 | ((REG & 0x1f) << 18)) -#define mk_mii_write(REG, VAL) (0x50020000 | ((REG & 0x1f) << 18) | (VAL & 0xffff)) -#define mk_mii_end 0 - -#define FEC_MII_LOOPS 10000 - /* - * Delay to wait for FEC reset command to complete (in us) + * Delay to wait for FEC reset command to complete (in us) */ #define FEC_RESET_DELAY 50 @@ -303,13 +262,15 @@ static void restart(struct net_device *dev) int r; u32 addrhi, addrlo; + struct mii_bus* mii = fep->phydev->bus; + struct fec_info* fec_inf = mii->priv; + r = whack_reset(fep->fec.fecp); if (r != 0) printk(KERN_ERR DRV_MODULE_NAME ": %s FEC Reset FAILED!\n", dev->name); - /* - * Set station address. + * Set station address. */ addrhi = ((u32) dev->dev_addr[0] << 24) | ((u32) dev->dev_addr[1] << 16) | @@ -350,12 +311,12 @@ static void restart(struct net_device *dev) FW(fecp, fun_code, 0x78000000); /* - * Set MII speed. + * Set MII speed. */ - FW(fecp, mii_speed, fep->mii_bus->fec.mii_speed); + FW(fecp, mii_speed, fec_inf->mii_speed); /* - * Clear any outstanding interrupt. + * Clear any outstanding interrupt. */ FW(fecp, ievent, 0xffc0); FW(fecp, ivec, (fep->interrupt / 2) << 29); @@ -390,11 +351,12 @@ static void restart(struct net_device *dev) } #endif + FW(fecp, r_cntrl, FEC_RCNTRL_MII_MODE); /* MII enable */ /* - * adjust to duplex mode + * adjust to duplex mode */ - if (fep->duplex) { + if (fep->phydev->duplex) { FC(fecp, r_cntrl, FEC_RCNTRL_DRT); FS(fecp, x_cntrl, FEC_TCNTRL_FDEN); /* FD enable */ } else { @@ -418,9 +380,11 @@ static void restart(struct net_device *dev) static void stop(struct net_device *dev) { struct fs_enet_private *fep = netdev_priv(dev); + const struct fs_platform_info *fpi = fep->fpi; fec_t *fecp = fep->fec.fecp; - struct fs_enet_mii_bus *bus = fep->mii_bus; - const struct fs_mii_bus_info *bi = bus->bus_info; + + struct fec_info* feci= fep->phydev->bus->priv; + int i; if ((FR(fecp, ecntrl) & FEC_ECNTRL_ETHER_EN) == 0) @@ -444,11 +408,11 @@ static void stop(struct net_device *dev) fs_cleanup_bds(dev); /* shut down FEC1? that's where the mii bus is */ - if (fep->fec.idx == 0 && bus->refs > 1 && bi->method == fsmii_fec) { + if (fpi->has_phy) { FS(fecp, r_cntrl, FEC_RCNTRL_MII_MODE); /* MII enable */ FS(fecp, ecntrl, FEC_ECNTRL_PINMUX | FEC_ECNTRL_ETHER_EN); FW(fecp, ievent, FEC_ENET_MII); - FW(fecp, mii_speed, bus->fec.mii_speed); + FW(fecp, mii_speed, feci->mii_speed); } } @@ -583,73 +547,3 @@ const struct fs_ops fs_fec_ops = { .free_bd = free_bd, }; -/***********************************************************************/ - -static int mii_read(struct fs_enet_mii_bus *bus, int phy_id, int location) -{ - fec_t *fecp = bus->fec.fecp; - int i, ret = -1; - - if ((FR(fecp, r_cntrl) & FEC_RCNTRL_MII_MODE) == 0) - BUG(); - - /* Add PHY address to register command. */ - FW(fecp, mii_data, (phy_id << 23) | mk_mii_read(location)); - - for (i = 0; i < FEC_MII_LOOPS; i++) - if ((FR(fecp, ievent) & FEC_ENET_MII) != 0) - break; - - if (i < FEC_MII_LOOPS) { - FW(fecp, ievent, FEC_ENET_MII); - ret = FR(fecp, mii_data) & 0xffff; - } - - return ret; -} - -static void mii_write(struct fs_enet_mii_bus *bus, int phy_id, int location, int value) -{ - fec_t *fecp = bus->fec.fecp; - int i; - - /* this must never happen */ - if ((FR(fecp, r_cntrl) & FEC_RCNTRL_MII_MODE) == 0) - BUG(); - - /* Add PHY address to register command. */ - FW(fecp, mii_data, (phy_id << 23) | mk_mii_write(location, value)); - - for (i = 0; i < FEC_MII_LOOPS; i++) - if ((FR(fecp, ievent) & FEC_ENET_MII) != 0) - break; - - if (i < FEC_MII_LOOPS) - FW(fecp, ievent, FEC_ENET_MII); -} - -int fs_mii_fec_init(struct fs_enet_mii_bus *bus) -{ - bd_t *bd = (bd_t *)__res; - const struct fs_mii_bus_info *bi = bus->bus_info; - fec_t *fecp; - - if (bi->id != 0) - return -1; - - bus->fec.fecp = &((immap_t *)fs_enet_immap)->im_cpm.cp_fec; - bus->fec.mii_speed = ((((bd->bi_intfreq + 4999999) / 2500000) / 2) - & 0x3F) << 1; - - fecp = bus->fec.fecp; - - FS(fecp, r_cntrl, FEC_RCNTRL_MII_MODE); /* MII enable */ - FS(fecp, ecntrl, FEC_ECNTRL_PINMUX | FEC_ECNTRL_ETHER_EN); - FW(fecp, ievent, FEC_ENET_MII); - FW(fecp, mii_speed, bus->fec.mii_speed); - - bus->mii_read = mii_read; - bus->mii_write = mii_write; - - return 0; -} diff --git a/drivers/net/fs_enet/mac-scc.c b/drivers/net/fs_enet/mac-scc.c index eaa24fab645f..95ec5872c507 100644 --- a/drivers/net/fs_enet/mac-scc.c +++ b/drivers/net/fs_enet/mac-scc.c @@ -369,7 +369,7 @@ static void restart(struct net_device *dev) W16(sccp, scc_psmr, SCC_PSMR_ENCRC | SCC_PSMR_NIB22); /* Set full duplex mode if needed */ - if (fep->duplex) + if (fep->phydev->duplex) S16(sccp, scc_psmr, SCC_PSMR_LPB | SCC_PSMR_FDE); S32(sccp, scc_gsmrl, SCC_GSMRL_ENR | SCC_GSMRL_ENT); @@ -500,6 +500,8 @@ static void tx_restart(struct net_device *dev) scc_cr_cmd(fep, CPM_CR_RESTART_TX); } + + /*************************************************************************/ const struct fs_ops fs_scc_ops = { diff --git a/drivers/net/fs_enet/mii-bitbang.c b/drivers/net/fs_enet/mii-bitbang.c index 48f9cf83ab6f..0b9b8b5c847c 100644 --- a/drivers/net/fs_enet/mii-bitbang.c +++ b/drivers/net/fs_enet/mii-bitbang.c @@ -33,6 +33,7 @@ #include #include #include +#include #include #include @@ -40,129 +41,25 @@ #include "fs_enet.h" -#ifdef CONFIG_8xx -static int bitbang_prep_bit(u8 **dirp, u8 **datp, u8 *mskp, int port, int bit) +static int bitbang_prep_bit(u8 **datp, u8 *mskp, + struct fs_mii_bit *mii_bit) { - immap_t *im = (immap_t *)fs_enet_immap; - void *dir, *dat, *ppar; + void *dat; int adv; u8 msk; - switch (port) { - case fsiop_porta: - dir = &im->im_ioport.iop_padir; - dat = &im->im_ioport.iop_padat; - ppar = &im->im_ioport.iop_papar; - break; + dat = (void*) mii_bit->offset; - case fsiop_portb: - dir = &im->im_cpm.cp_pbdir; - dat = &im->im_cpm.cp_pbdat; - ppar = &im->im_cpm.cp_pbpar; - break; - - case fsiop_portc: - dir = &im->im_ioport.iop_pcdir; - dat = &im->im_ioport.iop_pcdat; - ppar = &im->im_ioport.iop_pcpar; - break; - - case fsiop_portd: - dir = &im->im_ioport.iop_pddir; - dat = &im->im_ioport.iop_pddat; - ppar = &im->im_ioport.iop_pdpar; - break; - - case fsiop_porte: - dir = &im->im_cpm.cp_pedir; - dat = &im->im_cpm.cp_pedat; - ppar = &im->im_cpm.cp_pepar; - break; - - default: - printk(KERN_ERR DRV_MODULE_NAME - "Illegal port value %d!\n", port); - return -EINVAL; - } - - adv = bit >> 3; - dir = (char *)dir + adv; + adv = mii_bit->bit >> 3; dat = (char *)dat + adv; - ppar = (char *)ppar + adv; - msk = 1 << (7 - (bit & 7)); - if ((in_8(ppar) & msk) != 0) { - printk(KERN_ERR DRV_MODULE_NAME - "pin %d on port %d is not general purpose!\n", bit, port); - return -EINVAL; - } + msk = 1 << (7 - (mii_bit->bit & 7)); - *dirp = dir; *datp = dat; *mskp = msk; return 0; } -#endif - -#ifdef CONFIG_8260 -static int bitbang_prep_bit(u8 **dirp, u8 **datp, u8 *mskp, int port, int bit) -{ - iop_cpm2_t *io = &((cpm2_map_t *)fs_enet_immap)->im_ioport; - void *dir, *dat, *ppar; - int adv; - u8 msk; - - switch (port) { - case fsiop_porta: - dir = &io->iop_pdira; - dat = &io->iop_pdata; - ppar = &io->iop_ppara; - break; - - case fsiop_portb: - dir = &io->iop_pdirb; - dat = &io->iop_pdatb; - ppar = &io->iop_pparb; - break; - - case fsiop_portc: - dir = &io->iop_pdirc; - dat = &io->iop_pdatc; - ppar = &io->iop_pparc; - break; - - case fsiop_portd: - dir = &io->iop_pdird; - dat = &io->iop_pdatd; - ppar = &io->iop_ppard; - break; - - default: - printk(KERN_ERR DRV_MODULE_NAME - "Illegal port value %d!\n", port); - return -EINVAL; - } - - adv = bit >> 3; - dir = (char *)dir + adv; - dat = (char *)dat + adv; - ppar = (char *)ppar + adv; - - msk = 1 << (7 - (bit & 7)); - if ((in_8(ppar) & msk) != 0) { - printk(KERN_ERR DRV_MODULE_NAME - "pin %d on port %d is not general purpose!\n", bit, port); - return -EINVAL; - } - - *dirp = dir; - *datp = dat; - *mskp = msk; - - return 0; -} -#endif static inline void bb_set(u8 *p, u8 m) { @@ -179,44 +76,44 @@ static inline int bb_read(u8 *p, u8 m) return (in_8(p) & m) != 0; } -static inline void mdio_active(struct fs_enet_mii_bus *bus) +static inline void mdio_active(struct bb_info *bitbang) { - bb_set(bus->bitbang.mdio_dir, bus->bitbang.mdio_msk); + bb_set(bitbang->mdio_dir, bitbang->mdio_dir_msk); } -static inline void mdio_tristate(struct fs_enet_mii_bus *bus) +static inline void mdio_tristate(struct bb_info *bitbang ) { - bb_clr(bus->bitbang.mdio_dir, bus->bitbang.mdio_msk); + bb_clr(bitbang->mdio_dir, bitbang->mdio_dir_msk); } -static inline int mdio_read(struct fs_enet_mii_bus *bus) +static inline int mdio_read(struct bb_info *bitbang ) { - return bb_read(bus->bitbang.mdio_dat, bus->bitbang.mdio_msk); + return bb_read(bitbang->mdio_dat, bitbang->mdio_dat_msk); } -static inline void mdio(struct fs_enet_mii_bus *bus, int what) +static inline void mdio(struct bb_info *bitbang , int what) { if (what) - bb_set(bus->bitbang.mdio_dat, bus->bitbang.mdio_msk); + bb_set(bitbang->mdio_dat, bitbang->mdio_dat_msk); else - bb_clr(bus->bitbang.mdio_dat, bus->bitbang.mdio_msk); + bb_clr(bitbang->mdio_dat, bitbang->mdio_dat_msk); } -static inline void mdc(struct fs_enet_mii_bus *bus, int what) +static inline void mdc(struct bb_info *bitbang , int what) { if (what) - bb_set(bus->bitbang.mdc_dat, bus->bitbang.mdc_msk); + bb_set(bitbang->mdc_dat, bitbang->mdc_msk); else - bb_clr(bus->bitbang.mdc_dat, bus->bitbang.mdc_msk); + bb_clr(bitbang->mdc_dat, bitbang->mdc_msk); } -static inline void mii_delay(struct fs_enet_mii_bus *bus) +static inline void mii_delay(struct bb_info *bitbang ) { - udelay(bus->bus_info->i.bitbang.delay); + udelay(bitbang->delay); } /* Utility to send the preamble, address, and register (common to read and write). */ -static void bitbang_pre(struct fs_enet_mii_bus *bus, int read, u8 addr, u8 reg) +static void bitbang_pre(struct bb_info *bitbang , int read, u8 addr, u8 reg) { int j; @@ -228,177 +125,284 @@ static void bitbang_pre(struct fs_enet_mii_bus *bus, int read, u8 addr, u8 reg) * but it is safer and will be much more robust. */ - mdio_active(bus); - mdio(bus, 1); + mdio_active(bitbang); + mdio(bitbang, 1); for (j = 0; j < 32; j++) { - mdc(bus, 0); - mii_delay(bus); - mdc(bus, 1); - mii_delay(bus); + mdc(bitbang, 0); + mii_delay(bitbang); + mdc(bitbang, 1); + mii_delay(bitbang); } /* send the start bit (01) and the read opcode (10) or write (10) */ - mdc(bus, 0); - mdio(bus, 0); - mii_delay(bus); - mdc(bus, 1); - mii_delay(bus); - mdc(bus, 0); - mdio(bus, 1); - mii_delay(bus); - mdc(bus, 1); - mii_delay(bus); - mdc(bus, 0); - mdio(bus, read); - mii_delay(bus); - mdc(bus, 1); - mii_delay(bus); - mdc(bus, 0); - mdio(bus, !read); - mii_delay(bus); - mdc(bus, 1); - mii_delay(bus); + mdc(bitbang, 0); + mdio(bitbang, 0); + mii_delay(bitbang); + mdc(bitbang, 1); + mii_delay(bitbang); + mdc(bitbang, 0); + mdio(bitbang, 1); + mii_delay(bitbang); + mdc(bitbang, 1); + mii_delay(bitbang); + mdc(bitbang, 0); + mdio(bitbang, read); + mii_delay(bitbang); + mdc(bitbang, 1); + mii_delay(bitbang); + mdc(bitbang, 0); + mdio(bitbang, !read); + mii_delay(bitbang); + mdc(bitbang, 1); + mii_delay(bitbang); /* send the PHY address */ for (j = 0; j < 5; j++) { - mdc(bus, 0); - mdio(bus, (addr & 0x10) != 0); - mii_delay(bus); - mdc(bus, 1); - mii_delay(bus); + mdc(bitbang, 0); + mdio(bitbang, (addr & 0x10) != 0); + mii_delay(bitbang); + mdc(bitbang, 1); + mii_delay(bitbang); addr <<= 1; } /* send the register address */ for (j = 0; j < 5; j++) { - mdc(bus, 0); - mdio(bus, (reg & 0x10) != 0); - mii_delay(bus); - mdc(bus, 1); - mii_delay(bus); + mdc(bitbang, 0); + mdio(bitbang, (reg & 0x10) != 0); + mii_delay(bitbang); + mdc(bitbang, 1); + mii_delay(bitbang); reg <<= 1; } } -static int mii_read(struct fs_enet_mii_bus *bus, int phy_id, int location) +static int fs_enet_mii_bb_read(struct mii_bus *bus , int phy_id, int location) { u16 rdreg; int ret, j; u8 addr = phy_id & 0xff; u8 reg = location & 0xff; + struct bb_info* bitbang = bus->priv; - bitbang_pre(bus, 1, addr, reg); + bitbang_pre(bitbang, 1, addr, reg); /* tri-state our MDIO I/O pin so we can read */ - mdc(bus, 0); - mdio_tristate(bus); - mii_delay(bus); - mdc(bus, 1); - mii_delay(bus); + mdc(bitbang, 0); + mdio_tristate(bitbang); + mii_delay(bitbang); + mdc(bitbang, 1); + mii_delay(bitbang); /* check the turnaround bit: the PHY should be driving it to zero */ - if (mdio_read(bus) != 0) { + if (mdio_read(bitbang) != 0) { /* PHY didn't drive TA low */ for (j = 0; j < 32; j++) { - mdc(bus, 0); - mii_delay(bus); - mdc(bus, 1); - mii_delay(bus); + mdc(bitbang, 0); + mii_delay(bitbang); + mdc(bitbang, 1); + mii_delay(bitbang); } ret = -1; goto out; } - mdc(bus, 0); - mii_delay(bus); + mdc(bitbang, 0); + mii_delay(bitbang); /* read 16 bits of register data, MSB first */ rdreg = 0; for (j = 0; j < 16; j++) { - mdc(bus, 1); - mii_delay(bus); + mdc(bitbang, 1); + mii_delay(bitbang); rdreg <<= 1; - rdreg |= mdio_read(bus); - mdc(bus, 0); - mii_delay(bus); + rdreg |= mdio_read(bitbang); + mdc(bitbang, 0); + mii_delay(bitbang); } - mdc(bus, 1); - mii_delay(bus); - mdc(bus, 0); - mii_delay(bus); - mdc(bus, 1); - mii_delay(bus); + mdc(bitbang, 1); + mii_delay(bitbang); + mdc(bitbang, 0); + mii_delay(bitbang); + mdc(bitbang, 1); + mii_delay(bitbang); ret = rdreg; out: return ret; } -static void mii_write(struct fs_enet_mii_bus *bus, int phy_id, int location, int val) +static int fs_enet_mii_bb_write(struct mii_bus *bus, int phy_id, int location, u16 val) { int j; + struct bb_info* bitbang = bus->priv; + u8 addr = phy_id & 0xff; u8 reg = location & 0xff; u16 value = val & 0xffff; - bitbang_pre(bus, 0, addr, reg); + bitbang_pre(bitbang, 0, addr, reg); /* send the turnaround (10) */ - mdc(bus, 0); - mdio(bus, 1); - mii_delay(bus); - mdc(bus, 1); - mii_delay(bus); - mdc(bus, 0); - mdio(bus, 0); - mii_delay(bus); - mdc(bus, 1); - mii_delay(bus); + mdc(bitbang, 0); + mdio(bitbang, 1); + mii_delay(bitbang); + mdc(bitbang, 1); + mii_delay(bitbang); + mdc(bitbang, 0); + mdio(bitbang, 0); + mii_delay(bitbang); + mdc(bitbang, 1); + mii_delay(bitbang); /* write 16 bits of register data, MSB first */ for (j = 0; j < 16; j++) { - mdc(bus, 0); - mdio(bus, (value & 0x8000) != 0); - mii_delay(bus); - mdc(bus, 1); - mii_delay(bus); + mdc(bitbang, 0); + mdio(bitbang, (value & 0x8000) != 0); + mii_delay(bitbang); + mdc(bitbang, 1); + mii_delay(bitbang); value <<= 1; } /* * Tri-state the MDIO line. */ - mdio_tristate(bus); - mdc(bus, 0); - mii_delay(bus); - mdc(bus, 1); - mii_delay(bus); + mdio_tristate(bitbang); + mdc(bitbang, 0); + mii_delay(bitbang); + mdc(bitbang, 1); + mii_delay(bitbang); + return 0; } -int fs_mii_bitbang_init(struct fs_enet_mii_bus *bus) +static int fs_enet_mii_bb_reset(struct mii_bus *bus) +{ + /*nothing here - dunno how to reset it*/ + return 0; +} + +static int fs_mii_bitbang_init(struct bb_info *bitbang, struct fs_mii_bb_platform_info* fmpi) { - const struct fs_mii_bus_info *bi = bus->bus_info; int r; - r = bitbang_prep_bit(&bus->bitbang.mdio_dir, - &bus->bitbang.mdio_dat, - &bus->bitbang.mdio_msk, - bi->i.bitbang.mdio_port, - bi->i.bitbang.mdio_bit); + bitbang->delay = fmpi->delay; + + r = bitbang_prep_bit(&bitbang->mdio_dir, + &bitbang->mdio_dir_msk, + &fmpi->mdio_dir); if (r != 0) return r; - r = bitbang_prep_bit(&bus->bitbang.mdc_dir, - &bus->bitbang.mdc_dat, - &bus->bitbang.mdc_msk, - bi->i.bitbang.mdc_port, - bi->i.bitbang.mdc_bit); + r = bitbang_prep_bit(&bitbang->mdio_dat, + &bitbang->mdio_dat_msk, + &fmpi->mdio_dat); if (r != 0) return r; - bus->mii_read = mii_read; - bus->mii_write = mii_write; + r = bitbang_prep_bit(&bitbang->mdc_dat, + &bitbang->mdc_msk, + &fmpi->mdc_dat); + if (r != 0) + return r; return 0; } + + +static int __devinit fs_enet_mdio_probe(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct fs_mii_bb_platform_info *pdata; + struct mii_bus *new_bus; + struct bb_info *bitbang; + int err = 0; + + if (NULL == dev) + return -EINVAL; + + new_bus = kzalloc(sizeof(struct mii_bus), GFP_KERNEL); + + if (NULL == new_bus) + return -ENOMEM; + + bitbang = kzalloc(sizeof(struct bb_info), GFP_KERNEL); + + if (NULL == bitbang) + return -ENOMEM; + + new_bus->name = "BB MII Bus", + new_bus->read = &fs_enet_mii_bb_read, + new_bus->write = &fs_enet_mii_bb_write, + new_bus->reset = &fs_enet_mii_bb_reset, + new_bus->id = pdev->id; + + new_bus->phy_mask = ~0x9; + pdata = (struct fs_mii_bb_platform_info *)pdev->dev.platform_data; + + if (NULL == pdata) { + printk(KERN_ERR "gfar mdio %d: Missing platform data!\n", pdev->id); + return -ENODEV; + } + + /*set up workspace*/ + fs_mii_bitbang_init(bitbang, pdata); + + new_bus->priv = bitbang; + + new_bus->irq = pdata->irq; + + new_bus->dev = dev; + dev_set_drvdata(dev, new_bus); + + err = mdiobus_register(new_bus); + + if (0 != err) { + printk (KERN_ERR "%s: Cannot register as MDIO bus\n", + new_bus->name); + goto bus_register_fail; + } + + return 0; + +bus_register_fail: + kfree(bitbang); + kfree(new_bus); + + return err; +} + + +static int fs_enet_mdio_remove(struct device *dev) +{ + struct mii_bus *bus = dev_get_drvdata(dev); + + mdiobus_unregister(bus); + + dev_set_drvdata(dev, NULL); + + iounmap((void *) (&bus->priv)); + bus->priv = NULL; + kfree(bus); + + return 0; +} + +static struct device_driver fs_enet_bb_mdio_driver = { + .name = "fsl-bb-mdio", + .bus = &platform_bus_type, + .probe = fs_enet_mdio_probe, + .remove = fs_enet_mdio_remove, +}; + +int fs_enet_mdio_bb_init(void) +{ + return driver_register(&fs_enet_bb_mdio_driver); +} + +void fs_enet_mdio_bb_exit(void) +{ + driver_unregister(&fs_enet_bb_mdio_driver); +} + diff --git a/drivers/net/fs_enet/mii-fec.c b/drivers/net/fs_enet/mii-fec.c new file mode 100644 index 000000000000..1328e10caa35 --- /dev/null +++ b/drivers/net/fs_enet/mii-fec.c @@ -0,0 +1,243 @@ +/* + * Combined Ethernet driver for Motorola MPC8xx and MPC82xx. + * + * Copyright (c) 2003 Intracom S.A. + * by Pantelis Antoniou + * + * 2005 (c) MontaVista Software, Inc. + * Vitaly Bordug + * + * This file is licensed under the terms of the GNU General Public License + * version 2. This program is licensed "as is" without any warranty of any + * kind, whether express or implied. + */ + + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#include "fs_enet.h" +#include "fec.h" + +/* Make MII read/write commands for the FEC. +*/ +#define mk_mii_read(REG) (0x60020000 | ((REG & 0x1f) << 18)) +#define mk_mii_write(REG, VAL) (0x50020000 | ((REG & 0x1f) << 18) | (VAL & 0xffff)) +#define mk_mii_end 0 + +#define FEC_MII_LOOPS 10000 + +static int match_has_phy (struct device *dev, void* data) +{ + struct platform_device* pdev = container_of(dev, struct platform_device, dev); + struct fs_platform_info* fpi; + if(strcmp(pdev->name, (char*)data)) + { + return 0; + } + + fpi = pdev->dev.platform_data; + if((fpi)&&(fpi->has_phy)) + return 1; + return 0; +} + +static int fs_mii_fec_init(struct fec_info* fec, struct fs_mii_fec_platform_info *fmpi) +{ + struct resource *r; + fec_t *fecp; + char* name = "fsl-cpm-fec"; + + /* we need fec in order to be useful */ + struct platform_device *fec_pdev = + container_of(bus_find_device(&platform_bus_type, NULL, name, match_has_phy), + struct platform_device, dev); + + if(fec_pdev == NULL) { + printk(KERN_ERR"Unable to find PHY for %s", name); + return -ENODEV; + } + + r = platform_get_resource_byname(fec_pdev, IORESOURCE_MEM, "regs"); + + fec->fecp = fecp = (fec_t*)ioremap(r->start,sizeof(fec_t)); + fec->mii_speed = fmpi->mii_speed; + + setbits32(&fecp->fec_r_cntrl, FEC_RCNTRL_MII_MODE); /* MII enable */ + setbits32(&fecp->fec_ecntrl, FEC_ECNTRL_PINMUX | FEC_ECNTRL_ETHER_EN); + out_be32(&fecp->fec_ievent, FEC_ENET_MII); + out_be32(&fecp->fec_mii_speed, fec->mii_speed); + + return 0; +} + +static int fs_enet_fec_mii_read(struct mii_bus *bus , int phy_id, int location) +{ + struct fec_info* fec = bus->priv; + fec_t *fecp = fec->fecp; + int i, ret = -1; + + if ((in_be32(&fecp->fec_r_cntrl) & FEC_RCNTRL_MII_MODE) == 0) + BUG(); + + /* Add PHY address to register command. */ + out_be32(&fecp->fec_mii_data, (phy_id << 23) | mk_mii_read(location)); + + for (i = 0; i < FEC_MII_LOOPS; i++) + if ((in_be32(&fecp->fec_ievent) & FEC_ENET_MII) != 0) + break; + + if (i < FEC_MII_LOOPS) { + out_be32(&fecp->fec_ievent, FEC_ENET_MII); + ret = in_be32(&fecp->fec_mii_data) & 0xffff; + } + + return ret; + +} + +static int fs_enet_fec_mii_write(struct mii_bus *bus, int phy_id, int location, u16 val) +{ + struct fec_info* fec = bus->priv; + fec_t *fecp = fec->fecp; + int i; + + /* this must never happen */ + if ((in_be32(&fecp->fec_r_cntrl) & FEC_RCNTRL_MII_MODE) == 0) + BUG(); + + /* Add PHY address to register command. */ + out_be32(&fecp->fec_mii_data, (phy_id << 23) | mk_mii_write(location, val)); + + for (i = 0; i < FEC_MII_LOOPS; i++) + if ((in_be32(&fecp->fec_ievent) & FEC_ENET_MII) != 0) + break; + + if (i < FEC_MII_LOOPS) + out_be32(&fecp->fec_ievent, FEC_ENET_MII); + + return 0; + +} + +static int fs_enet_fec_mii_reset(struct mii_bus *bus) +{ + /* nothing here - for now */ + return 0; +} + +static int __devinit fs_enet_fec_mdio_probe(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct fs_mii_fec_platform_info *pdata; + struct mii_bus *new_bus; + struct fec_info *fec; + int err = 0; + if (NULL == dev) + return -EINVAL; + new_bus = kzalloc(sizeof(struct mii_bus), GFP_KERNEL); + + if (NULL == new_bus) + return -ENOMEM; + + fec = kzalloc(sizeof(struct fec_info), GFP_KERNEL); + + if (NULL == fec) + return -ENOMEM; + + new_bus->name = "FEC MII Bus", + new_bus->read = &fs_enet_fec_mii_read, + new_bus->write = &fs_enet_fec_mii_write, + new_bus->reset = &fs_enet_fec_mii_reset, + new_bus->id = pdev->id; + + pdata = (struct fs_mii_fec_platform_info *)pdev->dev.platform_data; + + if (NULL == pdata) { + printk(KERN_ERR "fs_enet FEC mdio %d: Missing platform data!\n", pdev->id); + return -ENODEV; + } + + /*set up workspace*/ + + fs_mii_fec_init(fec, pdata); + new_bus->priv = fec; + + new_bus->irq = pdata->irq; + + new_bus->dev = dev; + dev_set_drvdata(dev, new_bus); + + err = mdiobus_register(new_bus); + + if (0 != err) { + printk (KERN_ERR "%s: Cannot register as MDIO bus\n", + new_bus->name); + goto bus_register_fail; + } + + return 0; + +bus_register_fail: + kfree(new_bus); + + return err; +} + + +static int fs_enet_fec_mdio_remove(struct device *dev) +{ + struct mii_bus *bus = dev_get_drvdata(dev); + + mdiobus_unregister(bus); + + dev_set_drvdata(dev, NULL); + kfree(bus->priv); + + bus->priv = NULL; + kfree(bus); + + return 0; +} + +static struct device_driver fs_enet_fec_mdio_driver = { + .name = "fsl-cpm-fec-mdio", + .bus = &platform_bus_type, + .probe = fs_enet_fec_mdio_probe, + .remove = fs_enet_fec_mdio_remove, +}; + +int fs_enet_mdio_fec_init(void) +{ + return driver_register(&fs_enet_fec_mdio_driver); +} + +void fs_enet_mdio_fec_exit(void) +{ + driver_unregister(&fs_enet_fec_mdio_driver); +} + diff --git a/drivers/net/fs_enet/mii-fixed.c b/drivers/net/fs_enet/mii-fixed.c deleted file mode 100644 index ae4a9c3bb393..000000000000 --- a/drivers/net/fs_enet/mii-fixed.c +++ /dev/null @@ -1,91 +0,0 @@ -/* - * Combined Ethernet driver for Motorola MPC8xx and MPC82xx. - * - * Copyright (c) 2003 Intracom S.A. - * by Pantelis Antoniou - * - * 2005 (c) MontaVista Software, Inc. - * Vitaly Bordug - * - * This file is licensed under the terms of the GNU General Public License - * version 2. This program is licensed "as is" without any warranty of any - * kind, whether express or implied. - */ - - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include - -#include "fs_enet.h" - -static const u16 mii_regs[7] = { - 0x3100, - 0x786d, - 0x0fff, - 0x0fff, - 0x01e1, - 0x45e1, - 0x0003, -}; - -static int mii_read(struct fs_enet_mii_bus *bus, int phy_id, int location) -{ - int ret = 0; - - if ((unsigned int)location >= ARRAY_SIZE(mii_regs)) - return -1; - - if (location != 5) - ret = mii_regs[location]; - else - ret = bus->fixed.lpa; - - return ret; -} - -static void mii_write(struct fs_enet_mii_bus *bus, int phy_id, int location, int val) -{ - /* do nothing */ -} - -int fs_mii_fixed_init(struct fs_enet_mii_bus *bus) -{ - const struct fs_mii_bus_info *bi = bus->bus_info; - - bus->fixed.lpa = 0x45e1; /* default 100Mb, full duplex */ - - /* if speed is fixed at 10Mb, remove 100Mb modes */ - if (bi->i.fixed.speed == 10) - bus->fixed.lpa &= ~LPA_100; - - /* if duplex is half, remove full duplex modes */ - if (bi->i.fixed.duplex == 0) - bus->fixed.lpa &= ~LPA_DUPLEX; - - bus->mii_read = mii_read; - bus->mii_write = mii_write; - - return 0; -} From 2ca2d5e84c19ddbc0126087af6288533a05f1799 Mon Sep 17 00:00:00 2001 From: Vitaly Bordug Date: Mon, 14 Aug 2006 23:00:31 -0700 Subject: [PATCH 248/488] [PATCH] ppc32: board-specific part of fs_enet update This contains board-specific portion to respect driver changes (for 8272ads , 885ads and 866ads). Altered platform_data structures as well as initial setup routines relevant to fs_enet. Changes to the mpc8560ads ppc/ code are also introduced, but mainly as reference, since the entire board support is going to appear in arch/powerpc. Signed-off-by: Vitaly Bordug Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- arch/ppc/platforms/85xx/mpc8560_ads.c | 89 +++++++++ arch/ppc/platforms/85xx/mpc85xx_ads_common.h | 19 ++ arch/ppc/platforms/mpc8272ads_setup.c | 152 ++++++++------- arch/ppc/platforms/mpc866ads_setup.c | 192 +++++++++---------- arch/ppc/platforms/mpc885ads_setup.c | 175 +++++++---------- arch/ppc/platforms/pq2ads_pd.h | 82 -------- arch/ppc/syslib/mpc85xx_devices.c | 89 ++++++++- arch/ppc/syslib/mpc8xx_devices.c | 8 + arch/ppc/syslib/mpc8xx_sys.c | 6 +- arch/ppc/syslib/pq2_devices.c | 5 + arch/ppc/syslib/pq2_sys.c | 3 +- include/asm-ppc/cpm2.h | 95 +++++++++ include/asm-ppc/mpc8260.h | 1 + include/asm-ppc/mpc8xx.h | 1 + include/linux/fs_enet_pd.h | 50 ++--- 15 files changed, 577 insertions(+), 390 deletions(-) diff --git a/arch/ppc/platforms/85xx/mpc8560_ads.c b/arch/ppc/platforms/85xx/mpc8560_ads.c index d90cd24d018e..94badafe4ef1 100644 --- a/arch/ppc/platforms/85xx/mpc8560_ads.c +++ b/arch/ppc/platforms/85xx/mpc8560_ads.c @@ -29,6 +29,7 @@ #include #include #include +#include #include #include @@ -58,6 +59,71 @@ * Setup the architecture * */ +static void init_fcc_ioports(void) +{ + struct immap *immap; + struct io_port *io; + u32 tempval; + + immap = cpm2_immr; + + io = &immap->im_ioport; + /* FCC2/3 are on the ports B/C. */ + tempval = in_be32(&io->iop_pdirb); + tempval &= ~PB2_DIRB0; + tempval |= PB2_DIRB1; + out_be32(&io->iop_pdirb, tempval); + + tempval = in_be32(&io->iop_psorb); + tempval &= ~PB2_PSORB0; + tempval |= PB2_PSORB1; + out_be32(&io->iop_psorb, tempval); + + tempval = in_be32(&io->iop_pparb); + tempval |= (PB2_DIRB0 | PB2_DIRB1); + out_be32(&io->iop_pparb, tempval); + + tempval = in_be32(&io->iop_pdirb); + tempval &= ~PB3_DIRB0; + tempval |= PB3_DIRB1; + out_be32(&io->iop_pdirb, tempval); + + tempval = in_be32(&io->iop_psorb); + tempval &= ~PB3_PSORB0; + tempval |= PB3_PSORB1; + out_be32(&io->iop_psorb, tempval); + + tempval = in_be32(&io->iop_pparb); + tempval |= (PB3_DIRB0 | PB3_DIRB1); + out_be32(&io->iop_pparb, tempval); + + tempval = in_be32(&io->iop_pdirc); + tempval |= PC3_DIRC1; + out_be32(&io->iop_pdirc, tempval); + + tempval = in_be32(&io->iop_pparc); + tempval |= PC3_DIRC1; + out_be32(&io->iop_pparc, tempval); + + /* Port C has clocks...... */ + tempval = in_be32(&io->iop_psorc); + tempval &= ~(CLK_TRX); + out_be32(&io->iop_psorc, tempval); + + tempval = in_be32(&io->iop_pdirc); + tempval &= ~(CLK_TRX); + out_be32(&io->iop_pdirc, tempval); + tempval = in_be32(&io->iop_pparc); + tempval |= (CLK_TRX); + out_be32(&io->iop_pparc, tempval); + + /* Configure Serial Interface clock routing. + * First, clear all FCC bits to zero, + * then set the ones we want. + */ + immap->im_cpmux.cmx_fcr &= ~(CPMUX_CLK_MASK); + immap->im_cpmux.cmx_fcr |= CPMUX_CLK_ROUTE; +} static void __init mpc8560ads_setup_arch(void) @@ -66,6 +132,7 @@ mpc8560ads_setup_arch(void) unsigned int freq; struct gianfar_platform_data *pdata; struct gianfar_mdio_data *mdata; + struct fs_platform_info *fpi; cpm2_reset(); @@ -110,6 +177,28 @@ mpc8560ads_setup_arch(void) memcpy(pdata->mac_addr, binfo->bi_enet1addr, 6); } + init_fcc_ioports(); + ppc_sys_device_remove(MPC85xx_CPM_FCC1); + + fpi = (struct fs_platform_info *) ppc_sys_get_pdata(MPC85xx_CPM_FCC2); + if (fpi) { + memcpy(fpi->macaddr, binfo->bi_enet2addr, 6); + fpi->bus_id = "0:02"; + fpi->phy_addr = 2; + fpi->dpram_offset = (u32)cpm2_immr->im_dprambase; + fpi->fcc_regs_c = (u32)&cpm2_immr->im_fcc_c[1]; + } + + fpi = (struct fs_platform_info *) ppc_sys_get_pdata(MPC85xx_CPM_FCC3); + if (fpi) { + memcpy(fpi->macaddr, binfo->bi_enet2addr, 6); + fpi->macaddr[5] += 1; + fpi->bus_id = "0:03"; + fpi->phy_addr = 3; + fpi->dpram_offset = (u32)cpm2_immr->im_dprambase; + fpi->fcc_regs_c = (u32)&cpm2_immr->im_fcc_c[2]; + } + #ifdef CONFIG_BLK_DEV_INITRD if (initrd_start) ROOT_DEV = Root_RAM0; diff --git a/arch/ppc/platforms/85xx/mpc85xx_ads_common.h b/arch/ppc/platforms/85xx/mpc85xx_ads_common.h index abf32281655d..c8c322fe3680 100644 --- a/arch/ppc/platforms/85xx/mpc85xx_ads_common.h +++ b/arch/ppc/platforms/85xx/mpc85xx_ads_common.h @@ -45,4 +45,23 @@ extern void mpc85xx_ads_map_io(void) __init; #define MPC85XX_PCI1_IO_SIZE 0x01000000 +/* FCC1 Clock Source Configuration. These can be + * redefined in the board specific file. + * Can only choose from CLK9-12 */ +#define F1_RXCLK 12 +#define F1_TXCLK 11 + +/* FCC2 Clock Source Configuration. These can be + * redefined in the board specific file. + * Can only choose from CLK13-16 */ +#define F2_RXCLK 13 +#define F2_TXCLK 14 + +/* FCC3 Clock Source Configuration. These can be + * redefined in the board specific file. + * Can only choose from CLK13-16 */ +#define F3_RXCLK 15 +#define F3_TXCLK 16 + + #endif /* __MACH_MPC85XX_ADS_H__ */ diff --git a/arch/ppc/platforms/mpc8272ads_setup.c b/arch/ppc/platforms/mpc8272ads_setup.c index abb7154de2c7..2a35fe2b9b96 100644 --- a/arch/ppc/platforms/mpc8272ads_setup.c +++ b/arch/ppc/platforms/mpc8272ads_setup.c @@ -56,64 +56,51 @@ static struct fs_uart_platform_info mpc8272_uart_pdata[] = { }, }; -static struct fs_mii_bus_info mii_bus_info = { - .method = fsmii_bitbang, - .id = 0, - .i.bitbang = { - .mdio_port = fsiop_portc, - .mdio_bit = 18, - .mdc_port = fsiop_portc, - .mdc_bit = 19, - .delay = 1, +static struct fs_mii_bb_platform_info m82xx_mii_bb_pdata = { + .mdio_dat.bit = 18, + .mdio_dir.bit = 18, + .mdc_dat.bit = 19, + .delay = 1, +}; + +static struct fs_platform_info mpc82xx_enet_pdata[] = { + [fsid_fcc1] = { + .fs_no = fsid_fcc1, + .cp_page = CPM_CR_FCC1_PAGE, + .cp_block = CPM_CR_FCC1_SBLOCK, + + .clk_trx = (PC_F1RXCLK | PC_F1TXCLK), + .clk_route = CMX1_CLK_ROUTE, + .clk_mask = CMX1_CLK_MASK, + .init_ioports = init_fcc1_ioports, + + .mem_offset = FCC1_MEM_OFFSET, + + .rx_ring = 32, + .tx_ring = 32, + .rx_copybreak = 240, + .use_napi = 0, + .napi_weight = 17, + .bus_id = "0:00", }, -}; + [fsid_fcc2] = { + .fs_no = fsid_fcc2, + .cp_page = CPM_CR_FCC2_PAGE, + .cp_block = CPM_CR_FCC2_SBLOCK, + .clk_trx = (PC_F2RXCLK | PC_F2TXCLK), + .clk_route = CMX2_CLK_ROUTE, + .clk_mask = CMX2_CLK_MASK, + .init_ioports = init_fcc2_ioports, -static struct fs_platform_info mpc82xx_fcc1_pdata = { - .fs_no = fsid_fcc1, - .cp_page = CPM_CR_FCC1_PAGE, - .cp_block = CPM_CR_FCC1_SBLOCK, - .clk_trx = (PC_F1RXCLK | PC_F1TXCLK), - .clk_route = CMX1_CLK_ROUTE, - .clk_mask = CMX1_CLK_MASK, - .init_ioports = init_fcc1_ioports, + .mem_offset = FCC2_MEM_OFFSET, - .phy_addr = 0, -#ifdef PHY_INTERRUPT - .phy_irq = PHY_INTERRUPT, -#else - .phy_irq = -1; -#endif - .mem_offset = FCC1_MEM_OFFSET, - .bus_info = &mii_bus_info, - .rx_ring = 32, - .tx_ring = 32, - .rx_copybreak = 240, - .use_napi = 0, - .napi_weight = 17, -}; - -static struct fs_platform_info mpc82xx_fcc2_pdata = { - .fs_no = fsid_fcc2, - .cp_page = CPM_CR_FCC2_PAGE, - .cp_block = CPM_CR_FCC2_SBLOCK, - .clk_trx = (PC_F2RXCLK | PC_F2TXCLK), - .clk_route = CMX2_CLK_ROUTE, - .clk_mask = CMX2_CLK_MASK, - .init_ioports = init_fcc2_ioports, - - .phy_addr = 3, -#ifdef PHY_INTERRUPT - .phy_irq = PHY_INTERRUPT, -#else - .phy_irq = -1; -#endif - .mem_offset = FCC2_MEM_OFFSET, - .bus_info = &mii_bus_info, - .rx_ring = 32, - .tx_ring = 32, - .rx_copybreak = 240, - .use_napi = 0, - .napi_weight = 17, + .rx_ring = 32, + .tx_ring = 32, + .rx_copybreak = 240, + .use_napi = 0, + .napi_weight = 17, + .bus_id = "0:03", + }, }; static void init_fcc1_ioports(void) @@ -209,20 +196,21 @@ static void __init mpc8272ads_fixup_enet_pdata(struct platform_device *pdev, bd_t* bi = (void*)__res; int fs_no = fsid_fcc1+pdev->id-1; - mpc82xx_fcc1_pdata.dpram_offset = mpc82xx_fcc2_pdata.dpram_offset = (u32)cpm2_immr->im_dprambase; - mpc82xx_fcc1_pdata.fcc_regs_c = mpc82xx_fcc2_pdata.fcc_regs_c = (u32)cpm2_immr->im_fcc_c; - - switch(fs_no) { - case fsid_fcc1: - memcpy(&mpc82xx_fcc1_pdata.macaddr,bi->bi_enetaddr,6); - pdev->dev.platform_data = &mpc82xx_fcc1_pdata; - break; - case fsid_fcc2: - memcpy(&mpc82xx_fcc2_pdata.macaddr,bi->bi_enetaddr,6); - mpc82xx_fcc2_pdata.macaddr[5] ^= 1; - pdev->dev.platform_data = &mpc82xx_fcc2_pdata; - break; + if(fs_no > ARRAY_SIZE(mpc82xx_enet_pdata)) { + return; } + + mpc82xx_enet_pdata[fs_no].dpram_offset= + (u32)cpm2_immr->im_dprambase; + mpc82xx_enet_pdata[fs_no].fcc_regs_c = + (u32)cpm2_immr->im_fcc_c; + memcpy(&mpc82xx_enet_pdata[fs_no].macaddr,bi->bi_enetaddr,6); + + /* prevent dup mac */ + if(fs_no == fsid_fcc2) + mpc82xx_enet_pdata[fs_no].macaddr[5] ^= 1; + + pdev->dev.platform_data = &mpc82xx_enet_pdata[fs_no]; } static void mpc8272ads_fixup_uart_pdata(struct platform_device *pdev, @@ -274,6 +262,29 @@ static void init_scc4_uart_ioports(void) iounmap(immap); } +static void __init mpc8272ads_fixup_mdio_pdata(struct platform_device *pdev, + int idx) +{ + m82xx_mii_bb_pdata.irq[0] = PHY_INTERRUPT; + m82xx_mii_bb_pdata.irq[1] = -1; + m82xx_mii_bb_pdata.irq[2] = -1; + m82xx_mii_bb_pdata.irq[3] = PHY_INTERRUPT; + m82xx_mii_bb_pdata.irq[31] = -1; + + + m82xx_mii_bb_pdata.mdio_dat.offset = + (u32)&cpm2_immr->im_ioport.iop_pdatc; + + m82xx_mii_bb_pdata.mdio_dir.offset = + (u32)&cpm2_immr->im_ioport.iop_pdirc; + + m82xx_mii_bb_pdata.mdc_dat.offset = + (u32)&cpm2_immr->im_ioport.iop_pdatc; + + + pdev->dev.platform_data = &m82xx_mii_bb_pdata; +} + static int mpc8272ads_platform_notify(struct device *dev) { static const struct platform_notify_dev_map dev_map[] = { @@ -285,6 +296,10 @@ static int mpc8272ads_platform_notify(struct device *dev) .bus_id = "fsl-cpm-scc:uart", .rtn = mpc8272ads_fixup_uart_pdata, }, + { + .bus_id = "fsl-bb-mdio", + .rtn = mpc8272ads_fixup_mdio_pdata, + }, { .bus_id = NULL } @@ -319,6 +334,7 @@ int __init mpc8272ads_init(void) ppc_sys_device_enable(MPC82xx_CPM_SCC4); #endif + ppc_sys_device_enable(MPC82xx_MDIO_BB); return 0; } diff --git a/arch/ppc/platforms/mpc866ads_setup.c b/arch/ppc/platforms/mpc866ads_setup.c index f19b6167c770..e12cece4c9fd 100644 --- a/arch/ppc/platforms/mpc866ads_setup.c +++ b/arch/ppc/platforms/mpc866ads_setup.c @@ -1,10 +1,10 @@ -/*arch/ppc/platforms/mpc885ads-setup.c +/*arch/ppc/platforms/mpc866ads-setup.c * - * Platform setup for the Freescale mpc885ads board + * Platform setup for the Freescale mpc866ads board * * Vitaly Bordug * - * Copyright 2005 MontaVista Software Inc. + * Copyright 2005-2006 MontaVista Software Inc. * * This file is licensed under the terms of the GNU General Public License * version 2. This program is licensed "as is" without any warranty of any @@ -42,49 +42,36 @@ static void setup_scc1_ioports(void); static void setup_smc1_ioports(void); static void setup_smc2_ioports(void); -static struct fs_mii_bus_info fec_mii_bus_info = { - .method = fsmii_fec, - .id = 0, -}; +static struct fs_mii_fec_platform_info mpc8xx_mdio_fec_pdata; -static struct fs_mii_bus_info scc_mii_bus_info = { - .method = fsmii_fixed, - .id = 0, - .i.fixed.speed = 10, - .i.fixed.duplex = 0, -}; +static struct fs_mii_fec_platform_info mpc8xx_mdio_fec_pdata; -static struct fs_platform_info mpc8xx_fec_pdata[] = { - { - .rx_ring = 128, - .tx_ring = 16, - .rx_copybreak = 240, +static struct fs_platform_info mpc8xx_enet_pdata[] = { + [fsid_fec1] = { + .rx_ring = 128, + .tx_ring = 16, + .rx_copybreak = 240, - .use_napi = 1, - .napi_weight = 17, + .use_napi = 1, + .napi_weight = 17, - .phy_addr = 15, - .phy_irq = -1, + .init_ioports = setup_fec1_ioports, - .use_rmii = 0, + .bus_id = "0:0f", + .has_phy = 1, + }, + [fsid_scc1] = { + .rx_ring = 64, + .tx_ring = 8, + .rx_copybreak = 240, + .use_napi = 1, + .napi_weight = 17, - .bus_info = &fec_mii_bus_info, - } -}; -static struct fs_platform_info mpc8xx_scc_pdata = { - .rx_ring = 64, - .tx_ring = 8, - .rx_copybreak = 240, - - .use_napi = 1, - .napi_weight = 17, - - .phy_addr = -1, - .phy_irq = -1, - - .bus_info = &scc_mii_bus_info, + .init_ioports = setup_scc1_ioports, + .bus_id = "fixed@100:1", + }, }; static struct fs_uart_platform_info mpc866_uart_pdata[] = { @@ -207,63 +194,6 @@ static void setup_scc1_ioports(void) } -static void mpc866ads_fixup_enet_pdata(struct platform_device *pdev, int fs_no) -{ - struct fs_platform_info *fpi = pdev->dev.platform_data; - - volatile cpm8xx_t *cp; - bd_t *bd = (bd_t *) __res; - char *e; - int i; - - /* Get pointer to Communication Processor */ - cp = cpmp; - switch (fs_no) { - case fsid_fec1: - fpi = &mpc8xx_fec_pdata[0]; - fpi->init_ioports = &setup_fec1_ioports; - - break; - case fsid_scc1: - fpi = &mpc8xx_scc_pdata; - fpi->init_ioports = &setup_scc1_ioports; - - break; - default: - printk(KERN_WARNING"Device %s is not supported!\n", pdev->name); - return; - } - - pdev->dev.platform_data = fpi; - fpi->fs_no = fs_no; - - e = (unsigned char *)&bd->bi_enetaddr; - for (i = 0; i < 6; i++) - fpi->macaddr[i] = *e++; - - fpi->macaddr[5 - pdev->id]++; - -} - -static void mpc866ads_fixup_fec_enet_pdata(struct platform_device *pdev, - int idx) -{ - /* This is for FEC devices only */ - if (!pdev || !pdev->name || (!strstr(pdev->name, "fsl-cpm-fec"))) - return; - mpc866ads_fixup_enet_pdata(pdev, fsid_fec1 + pdev->id - 1); -} - -static void mpc866ads_fixup_scc_enet_pdata(struct platform_device *pdev, - int idx) -{ - /* This is for SCC devices only */ - if (!pdev || !pdev->name || (!strstr(pdev->name, "fsl-cpm-scc"))) - return; - - mpc866ads_fixup_enet_pdata(pdev, fsid_scc1 + pdev->id - 1); -} - static void setup_smc1_ioports(void) { immap_t *immap = (immap_t *) IMAP_ADDR; @@ -315,6 +245,56 @@ static void setup_smc2_ioports(void) } +static int ma_count = 0; + +static void mpc866ads_fixup_enet_pdata(struct platform_device *pdev, int fs_no) +{ + struct fs_platform_info *fpi; + + volatile cpm8xx_t *cp; + bd_t *bd = (bd_t *) __res; + char *e; + int i; + + /* Get pointer to Communication Processor */ + cp = cpmp; + + if(fs_no > ARRAY_SIZE(mpc8xx_enet_pdata)) { + printk(KERN_ERR"No network-suitable #%d device on bus", fs_no); + return; + } + + + fpi = &mpc8xx_enet_pdata[fs_no]; + fpi->fs_no = fs_no; + pdev->dev.platform_data = fpi; + + e = (unsigned char *)&bd->bi_enetaddr; + for (i = 0; i < 6; i++) + fpi->macaddr[i] = *e++; + + fpi->macaddr[5] += ma_count++; +} + +static void mpc866ads_fixup_fec_enet_pdata(struct platform_device *pdev, + int idx) +{ + /* This is for FEC devices only */ + if (!pdev || !pdev->name || (!strstr(pdev->name, "fsl-cpm-fec"))) + return; + mpc866ads_fixup_enet_pdata(pdev, fsid_fec1 + pdev->id - 1); +} + +static void mpc866ads_fixup_scc_enet_pdata(struct platform_device *pdev, + int idx) +{ + /* This is for SCC devices only */ + if (!pdev || !pdev->name || (!strstr(pdev->name, "fsl-cpm-scc"))) + return; + + mpc866ads_fixup_enet_pdata(pdev, fsid_scc1 + pdev->id - 1); +} + static void __init mpc866ads_fixup_uart_pdata(struct platform_device *pdev, int idx) { @@ -359,6 +339,9 @@ static int mpc866ads_platform_notify(struct device *dev) int __init mpc866ads_init(void) { + bd_t *bd = (bd_t *) __res; + struct fs_mii_fec_platform_info* fmpi; + printk(KERN_NOTICE "mpc866ads: Init\n"); platform_notify = mpc866ads_platform_notify; @@ -366,11 +349,20 @@ int __init mpc866ads_init(void) ppc_sys_device_initfunc(); ppc_sys_device_disable_all(); -#ifdef MPC8xx_SECOND_ETH_SCC1 +#ifdef CONFIG_MPC8xx_SECOND_ETH_SCC1 ppc_sys_device_enable(MPC8xx_CPM_SCC1); #endif ppc_sys_device_enable(MPC8xx_CPM_FEC1); + ppc_sys_device_enable(MPC8xx_MDIO_FEC); + + fmpi = ppc_sys_platform_devices[MPC8xx_MDIO_FEC].dev.platform_data = + &mpc8xx_mdio_fec_pdata; + + fmpi->mii_speed = ((((bd->bi_intfreq + 4999999) / 2500000) / 2) & 0x3F) << 1; + /* No PHY interrupt line here */ + fmpi->irq[0xf] = -1; + /* Since either of the uarts could be used as console, they need to ready */ #ifdef CONFIG_SERIAL_CPM_SMC1 ppc_sys_device_enable(MPC8xx_CPM_SMC1); @@ -381,6 +373,14 @@ int __init mpc866ads_init(void) ppc_sys_device_enable(MPC8xx_CPM_SMC2); ppc_sys_device_setfunc(MPC8xx_CPM_SMC2, PPC_SYS_FUNC_UART); #endif + ppc_sys_device_enable(MPC8xx_MDIO_FEC); + + fmpi = ppc_sys_platform_devices[MPC8xx_MDIO_FEC].dev.platform_data = + &mpc8xx_mdio_fec_pdata; + + fmpi->mii_speed = ((((bd->bi_intfreq + 4999999) / 2500000) / 2) & 0x3F) << 1; + /* No PHY interrupt line here */ + fmpi->irq[0xf] = -1; return 0; } diff --git a/arch/ppc/platforms/mpc885ads_setup.c b/arch/ppc/platforms/mpc885ads_setup.c index c1fc4a16fea9..5dfa4e6c2af0 100644 --- a/arch/ppc/platforms/mpc885ads_setup.c +++ b/arch/ppc/platforms/mpc885ads_setup.c @@ -38,7 +38,10 @@ extern unsigned char __res[]; static void setup_smc1_ioports(void); static void setup_smc2_ioports(void); -static void __init mpc885ads_scc_phy_init(char); +static struct fs_mii_fec_platform_info mpc8xx_mdio_fec_pdata; +static void setup_fec1_ioports(void); +static void setup_fec2_ioports(void); +static void setup_scc3_ioports(void); static struct fs_uart_platform_info mpc885_uart_pdata[] = { [fsid_smc1_uart] = { @@ -61,23 +64,8 @@ static struct fs_uart_platform_info mpc885_uart_pdata[] = { }, }; -static struct fs_mii_bus_info fec_mii_bus_info = { - .method = fsmii_fec, - .id = 0, -}; - -static struct fs_mii_bus_info scc_mii_bus_info = { -#ifdef CONFIG_SCC_ENET_8xx_FIXED - .method = fsmii_fixed, -#else - .method = fsmii_fec, -#endif - - .id = 0, -}; - -static struct fs_platform_info mpc8xx_fec_pdata[] = { - { +static struct fs_platform_info mpc8xx_enet_pdata[] = { + [fsid_fec1] = { .rx_ring = 128, .tx_ring = 16, .rx_copybreak = 240, @@ -85,11 +73,12 @@ static struct fs_platform_info mpc8xx_fec_pdata[] = { .use_napi = 1, .napi_weight = 17, - .phy_addr = 0, - .phy_irq = SIU_IRQ7, + .init_ioports = setup_fec1_ioports, - .bus_info = &fec_mii_bus_info, - }, { + .bus_id = "0:00", + .has_phy = 1, + }, + [fsid_fec2] = { .rx_ring = 128, .tx_ring = 16, .rx_copybreak = 240, @@ -97,35 +86,32 @@ static struct fs_platform_info mpc8xx_fec_pdata[] = { .use_napi = 1, .napi_weight = 17, - .phy_addr = 1, - .phy_irq = SIU_IRQ7, + .init_ioports = setup_fec2_ioports, - .bus_info = &fec_mii_bus_info, - } -}; + .bus_id = "0:01", + .has_phy = 1, + }, + [fsid_scc3] = { + .rx_ring = 64, + .tx_ring = 8, + .rx_copybreak = 240, -static struct fs_platform_info mpc8xx_scc_pdata = { - .rx_ring = 64, - .tx_ring = 8, - .rx_copybreak = 240, + .use_napi = 1, + .napi_weight = 17, - .use_napi = 1, - .napi_weight = 17, - - .phy_addr = 2, -#ifdef CONFIG_MPC8xx_SCC_ENET_FIXED - .phy_irq = -1, + .init_ioports = setup_scc3_ioports, +#ifdef CONFIG_FIXED_MII_10_FDX + .bus_id = "fixed@100:1", #else - .phy_irq = SIU_IRQ7, -#endif - - .bus_info = &scc_mii_bus_info, + .bus_id = "0:02", + #endif + }, }; void __init board_init(void) { - volatile cpm8xx_t *cp = cpmp; - unsigned int *bcsr_io; + cpm8xx_t *cp = cpmp; + unsigned int *bcsr_io; #ifdef CONFIG_FS_ENET immap_t *immap = (immap_t *) IMAP_ADDR; @@ -164,6 +150,14 @@ void __init board_init(void) /* use MDC for MII (common) */ setbits16(&immap->im_ioport.iop_pdpar, 0x0080); clrbits16(&immap->im_ioport.iop_pddir, 0x0080); + bcsr_io = ioremap(BCSR5, sizeof(unsigned long)); + clrbits32(bcsr_io,BCSR5_MII1_EN); + clrbits32(bcsr_io,BCSR5_MII1_RST); +#ifdef CONFIG_MPC8xx_SECOND_ETH_FEC2 + clrbits32(bcsr_io,BCSR5_MII2_EN); + clrbits32(bcsr_io,BCSR5_MII2_RST); +#endif + iounmap(bcsr_io); #endif } @@ -194,8 +188,8 @@ static void setup_fec2_ioports(void) /* configure FEC2 pins */ setbits32(&immap->im_cpm.cp_pepar, 0x0003fffc); setbits32(&immap->im_cpm.cp_pedir, 0x0003fffc); - setbits32(&immap->im_cpm.cp_peso, 0x00037800); clrbits32(&immap->im_cpm.cp_peso, 0x000087fc); + setbits32(&immap->im_cpm.cp_peso, 0x00037800); clrbits32(&immap->im_cpm.cp_cptr, 0x00000080); } @@ -213,6 +207,8 @@ static void setup_scc3_ioports(void) /* Enable the PHY. */ + clrbits32(bcsr_io+4, BCSR4_ETH10_RST); + udelay(1000); setbits32(bcsr_io+4, BCSR4_ETH10_RST); /* Configure port A pins for Txd and Rxd. */ @@ -254,37 +250,38 @@ static void setup_scc3_ioports(void) clrbits32(&immap->im_cpm.cp_pedir, PE_ENET_TENA); setbits32(&immap->im_cpm.cp_peso, PE_ENET_TENA); - setbits32(bcsr_io+1, BCSR1_ETHEN); + setbits32(bcsr_io+4, BCSR1_ETHEN); iounmap(bcsr_io); } +static int mac_count = 0; + static void mpc885ads_fixup_enet_pdata(struct platform_device *pdev, int fs_no) { - struct fs_platform_info *fpi = pdev->dev.platform_data; - - volatile cpm8xx_t *cp; + struct fs_platform_info *fpi; bd_t *bd = (bd_t *) __res; char *e; int i; - /* Get pointer to Communication Processor */ - cp = cpmp; + if(fs_no > ARRAY_SIZE(mpc8xx_enet_pdata)) { + printk(KERN_ERR"No network-suitable #%d device on bus", fs_no); + return; + } + + fpi = &mpc8xx_enet_pdata[fs_no]; + switch (fs_no) { case fsid_fec1: - fpi = &mpc8xx_fec_pdata[0]; fpi->init_ioports = &setup_fec1_ioports; break; case fsid_fec2: - fpi = &mpc8xx_fec_pdata[1]; fpi->init_ioports = &setup_fec2_ioports; break; case fsid_scc3: - fpi = &mpc8xx_scc_pdata; fpi->init_ioports = &setup_scc3_ioports; - mpc885ads_scc_phy_init(fpi->phy_addr); break; default: - printk(KERN_WARNING"Device %s is not supported!\n", pdev->name); + printk(KERN_WARNING "Device %s is not supported!\n", pdev->name); return; } @@ -295,7 +292,7 @@ static void mpc885ads_fixup_enet_pdata(struct platform_device *pdev, int fs_no) for (i = 0; i < 6; i++) fpi->macaddr[i] = *e++; - fpi->macaddr[5 - pdev->id]++; + fpi->macaddr[5] += mac_count++; } @@ -318,58 +315,6 @@ static void __init mpc885ads_fixup_scc_enet_pdata(struct platform_device *pdev, mpc885ads_fixup_enet_pdata(pdev, fsid_scc1 + pdev->id - 1); } -/* SCC ethernet controller does not have MII management channel. FEC1 MII - * channel is used to communicate with the 10Mbit PHY. - */ - -#define MII_ECNTRL_PINMUX 0x4 -#define FEC_ECNTRL_PINMUX 0x00000004 -#define FEC_RCNTRL_MII_MODE 0x00000004 - -/* Make MII read/write commands. - */ -#define mk_mii_write(REG, VAL, PHY_ADDR) (0x50020000 | (((REG) & 0x1f) << 18) | \ - ((VAL) & 0xffff) | ((PHY_ADDR) << 23)) - -static void mpc885ads_scc_phy_init(char phy_addr) -{ - volatile immap_t *immap; - volatile fec_t *fecp; - bd_t *bd; - - bd = (bd_t *) __res; - immap = (immap_t *) IMAP_ADDR; /* pointer to internal registers */ - fecp = &(immap->im_cpm.cp_fec); - - /* Enable MII pins of the FEC1 - */ - setbits16(&immap->im_ioport.iop_pdpar, 0x0080); - clrbits16(&immap->im_ioport.iop_pddir, 0x0080); - /* Set MII speed to 2.5 MHz - */ - out_be32(&fecp->fec_mii_speed, - ((((bd->bi_intfreq + 4999999) / 2500000) / 2) & 0x3F) << 1); - - /* Enable FEC pin MUX - */ - setbits32(&fecp->fec_ecntrl, MII_ECNTRL_PINMUX); - setbits32(&fecp->fec_r_cntrl, FEC_RCNTRL_MII_MODE); - - out_be32(&fecp->fec_mii_data, - mk_mii_write(MII_BMCR, BMCR_ISOLATE, phy_addr)); - udelay(100); - out_be32(&fecp->fec_mii_data, - mk_mii_write(MII_ADVERTISE, - ADVERTISE_10HALF | ADVERTISE_CSMA, phy_addr)); - udelay(100); - - /* Disable FEC MII settings - */ - clrbits32(&fecp->fec_ecntrl, MII_ECNTRL_PINMUX); - clrbits32(&fecp->fec_r_cntrl, FEC_RCNTRL_MII_MODE); - out_be32(&fecp->fec_mii_speed, 0); -} - static void setup_smc1_ioports(void) { immap_t *immap = (immap_t *) IMAP_ADDR; @@ -462,6 +407,9 @@ static int mpc885ads_platform_notify(struct device *dev) int __init mpc885ads_init(void) { + struct fs_mii_fec_platform_info* fmpi; + bd_t *bd = (bd_t *) __res; + printk(KERN_NOTICE "mpc885ads: Init\n"); platform_notify = mpc885ads_platform_notify; @@ -471,8 +419,17 @@ int __init mpc885ads_init(void) ppc_sys_device_enable(MPC8xx_CPM_FEC1); + ppc_sys_device_enable(MPC8xx_MDIO_FEC); + fmpi = ppc_sys_platform_devices[MPC8xx_MDIO_FEC].dev.platform_data = + &mpc8xx_mdio_fec_pdata; + + fmpi->mii_speed = ((((bd->bi_intfreq + 4999999) / 2500000) / 2) & 0x3F) << 1; + + /* No PHY interrupt line here */ + fmpi->irq[0xf] = SIU_IRQ7; + #ifdef CONFIG_MPC8xx_SECOND_ETH_SCC3 - ppc_sys_device_enable(MPC8xx_CPM_SCC1); + ppc_sys_device_enable(MPC8xx_CPM_SCC3); #endif #ifdef CONFIG_MPC8xx_SECOND_ETH_FEC2 diff --git a/arch/ppc/platforms/pq2ads_pd.h b/arch/ppc/platforms/pq2ads_pd.h index 8f14a43eafec..672483df8079 100644 --- a/arch/ppc/platforms/pq2ads_pd.h +++ b/arch/ppc/platforms/pq2ads_pd.h @@ -29,86 +29,4 @@ #define F3_RXCLK 13 #define F3_TXCLK 14 -/* Automatically generates register configurations */ -#define PC_CLK(x) ((uint)(1<<(x-1))) /* FCC CLK I/O ports */ - -#define CMXFCR_RF1CS(x) ((uint)((x-5)<<27)) /* FCC1 Receive Clock Source */ -#define CMXFCR_TF1CS(x) ((uint)((x-5)<<24)) /* FCC1 Transmit Clock Source */ -#define CMXFCR_RF2CS(x) ((uint)((x-9)<<19)) /* FCC2 Receive Clock Source */ -#define CMXFCR_TF2CS(x) ((uint)((x-9)<<16)) /* FCC2 Transmit Clock Source */ -#define CMXFCR_RF3CS(x) ((uint)((x-9)<<11)) /* FCC3 Receive Clock Source */ -#define CMXFCR_TF3CS(x) ((uint)((x-9)<<8)) /* FCC3 Transmit Clock Source */ - -#define PC_F1RXCLK PC_CLK(F1_RXCLK) -#define PC_F1TXCLK PC_CLK(F1_TXCLK) -#define CMX1_CLK_ROUTE (CMXFCR_RF1CS(F1_RXCLK) | CMXFCR_TF1CS(F1_TXCLK)) -#define CMX1_CLK_MASK ((uint)0xff000000) - -#define PC_F2RXCLK PC_CLK(F2_RXCLK) -#define PC_F2TXCLK PC_CLK(F2_TXCLK) -#define CMX2_CLK_ROUTE (CMXFCR_RF2CS(F2_RXCLK) | CMXFCR_TF2CS(F2_TXCLK)) -#define CMX2_CLK_MASK ((uint)0x00ff0000) - -#define PC_F3RXCLK PC_CLK(F3_RXCLK) -#define PC_F3TXCLK PC_CLK(F3_TXCLK) -#define CMX3_CLK_ROUTE (CMXFCR_RF3CS(F3_RXCLK) | CMXFCR_TF3CS(F3_TXCLK)) -#define CMX3_CLK_MASK ((uint)0x0000ff00) - -/* I/O Pin assignment for FCC1. I don't yet know the best way to do this, - * but there is little variation among the choices. - */ -#define PA1_COL 0x00000001U -#define PA1_CRS 0x00000002U -#define PA1_TXER 0x00000004U -#define PA1_TXEN 0x00000008U -#define PA1_RXDV 0x00000010U -#define PA1_RXER 0x00000020U -#define PA1_TXDAT 0x00003c00U -#define PA1_RXDAT 0x0003c000U -#define PA1_PSORA0 (PA1_RXDAT | PA1_TXDAT) -#define PA1_PSORA1 (PA1_COL | PA1_CRS | PA1_TXER | PA1_TXEN | \ - PA1_RXDV | PA1_RXER) -#define PA1_DIRA0 (PA1_RXDAT | PA1_CRS | PA1_COL | PA1_RXER | PA1_RXDV) -#define PA1_DIRA1 (PA1_TXDAT | PA1_TXEN | PA1_TXER) - - -/* I/O Pin assignment for FCC2. I don't yet know the best way to do this, - * but there is little variation among the choices. - */ -#define PB2_TXER 0x00000001U -#define PB2_RXDV 0x00000002U -#define PB2_TXEN 0x00000004U -#define PB2_RXER 0x00000008U -#define PB2_COL 0x00000010U -#define PB2_CRS 0x00000020U -#define PB2_TXDAT 0x000003c0U -#define PB2_RXDAT 0x00003c00U -#define PB2_PSORB0 (PB2_RXDAT | PB2_TXDAT | PB2_CRS | PB2_COL | \ - PB2_RXER | PB2_RXDV | PB2_TXER) -#define PB2_PSORB1 (PB2_TXEN) -#define PB2_DIRB0 (PB2_RXDAT | PB2_CRS | PB2_COL | PB2_RXER | PB2_RXDV) -#define PB2_DIRB1 (PB2_TXDAT | PB2_TXEN | PB2_TXER) - - -/* I/O Pin assignment for FCC3. I don't yet know the best way to do this, - * but there is little variation among the choices. - */ -#define PB3_RXDV 0x00004000U -#define PB3_RXER 0x00008000U -#define PB3_TXER 0x00010000U -#define PB3_TXEN 0x00020000U -#define PB3_COL 0x00040000U -#define PB3_CRS 0x00080000U -#define PB3_TXDAT 0x0f000000U -#define PB3_RXDAT 0x00f00000U -#define PB3_PSORB0 (PB3_RXDAT | PB3_TXDAT | PB3_CRS | PB3_COL | \ - PB3_RXER | PB3_RXDV | PB3_TXER | PB3_TXEN) -#define PB3_PSORB1 0 -#define PB3_DIRB0 (PB3_RXDAT | PB3_CRS | PB3_COL | PB3_RXER | PB3_RXDV) -#define PB3_DIRB1 (PB3_TXDAT | PB3_TXEN | PB3_TXER) - -#define FCC_MEM_OFFSET(x) (CPM_FCC_SPECIAL_BASE + (x*128)) -#define FCC1_MEM_OFFSET FCC_MEM_OFFSET(0) -#define FCC2_MEM_OFFSET FCC_MEM_OFFSET(1) - #endif diff --git a/arch/ppc/syslib/mpc85xx_devices.c b/arch/ppc/syslib/mpc85xx_devices.c index 7735336f5b8f..325136e5aee0 100644 --- a/arch/ppc/syslib/mpc85xx_devices.c +++ b/arch/ppc/syslib/mpc85xx_devices.c @@ -16,9 +16,11 @@ #include #include #include +#include #include #include #include +#include /* We use offsets for IORESOURCE_MEM since we do not know at compile time * what CCSRBAR is, will get fixed up by mach_mpc85xx_fixup @@ -82,6 +84,60 @@ static struct fsl_i2c_platform_data mpc85xx_fsl_i2c2_pdata = { .device_flags = FSL_I2C_DEV_SEPARATE_DFSRR, }; +static struct fs_platform_info mpc85xx_fcc1_pdata = { + .fs_no = fsid_fcc1, + .cp_page = CPM_CR_FCC1_PAGE, + .cp_block = CPM_CR_FCC1_SBLOCK, + + .rx_ring = 32, + .tx_ring = 32, + .rx_copybreak = 240, + .use_napi = 0, + .napi_weight = 17, + + .clk_mask = CMX1_CLK_MASK, + .clk_route = CMX1_CLK_ROUTE, + .clk_trx = (PC_F1RXCLK | PC_F1TXCLK), + + .mem_offset = FCC1_MEM_OFFSET, +}; + +static struct fs_platform_info mpc85xx_fcc2_pdata = { + .fs_no = fsid_fcc2, + .cp_page = CPM_CR_FCC2_PAGE, + .cp_block = CPM_CR_FCC2_SBLOCK, + + .rx_ring = 32, + .tx_ring = 32, + .rx_copybreak = 240, + .use_napi = 0, + .napi_weight = 17, + + .clk_mask = CMX2_CLK_MASK, + .clk_route = CMX2_CLK_ROUTE, + .clk_trx = (PC_F2RXCLK | PC_F2TXCLK), + + .mem_offset = FCC2_MEM_OFFSET, +}; + +static struct fs_platform_info mpc85xx_fcc3_pdata = { + .fs_no = fsid_fcc3, + .cp_page = CPM_CR_FCC3_PAGE, + .cp_block = CPM_CR_FCC3_SBLOCK, + + .rx_ring = 32, + .tx_ring = 32, + .rx_copybreak = 240, + .use_napi = 0, + .napi_weight = 17, + + .clk_mask = CMX3_CLK_MASK, + .clk_route = CMX3_CLK_ROUTE, + .clk_trx = (PC_F3RXCLK | PC_F3TXCLK), + + .mem_offset = FCC3_MEM_OFFSET, +}; + static struct plat_serial8250_port serial_platform_data[] = { [0] = { .mapbase = 0x4500, @@ -318,18 +374,27 @@ struct platform_device ppc_sys_platform_devices[] = { [MPC85xx_CPM_FCC1] = { .name = "fsl-cpm-fcc", .id = 1, - .num_resources = 3, + .num_resources = 4, + .dev.platform_data = &mpc85xx_fcc1_pdata, .resource = (struct resource[]) { { + .name = "fcc_regs", .start = 0x91300, .end = 0x9131F, .flags = IORESOURCE_MEM, }, { + .name = "fcc_regs_c", .start = 0x91380, .end = 0x9139F, .flags = IORESOURCE_MEM, }, + { + .name = "fcc_pram", + .start = 0x88400, + .end = 0x884ff, + .flags = IORESOURCE_MEM, + }, { .start = SIU_INT_FCC1, .end = SIU_INT_FCC1, @@ -340,18 +405,27 @@ struct platform_device ppc_sys_platform_devices[] = { [MPC85xx_CPM_FCC2] = { .name = "fsl-cpm-fcc", .id = 2, - .num_resources = 3, + .num_resources = 4, + .dev.platform_data = &mpc85xx_fcc2_pdata, .resource = (struct resource[]) { { + .name = "fcc_regs", .start = 0x91320, .end = 0x9133F, .flags = IORESOURCE_MEM, }, { + .name = "fcc_regs_c", .start = 0x913A0, .end = 0x913CF, .flags = IORESOURCE_MEM, }, + { + .name = "fcc_pram", + .start = 0x88500, + .end = 0x885ff, + .flags = IORESOURCE_MEM, + }, { .start = SIU_INT_FCC2, .end = SIU_INT_FCC2, @@ -362,18 +436,27 @@ struct platform_device ppc_sys_platform_devices[] = { [MPC85xx_CPM_FCC3] = { .name = "fsl-cpm-fcc", .id = 3, - .num_resources = 3, + .num_resources = 4, + .dev.platform_data = &mpc85xx_fcc3_pdata, .resource = (struct resource[]) { { + .name = "fcc_regs", .start = 0x91340, .end = 0x9135F, .flags = IORESOURCE_MEM, }, { + .name = "fcc_regs_c", .start = 0x913D0, .end = 0x913FF, .flags = IORESOURCE_MEM, }, + { + .name = "fcc_pram", + .start = 0x88600, + .end = 0x886ff, + .flags = IORESOURCE_MEM, + }, { .start = SIU_INT_FCC3, .end = SIU_INT_FCC3, diff --git a/arch/ppc/syslib/mpc8xx_devices.c b/arch/ppc/syslib/mpc8xx_devices.c index 6f536383866e..cf5ab47487a7 100644 --- a/arch/ppc/syslib/mpc8xx_devices.c +++ b/arch/ppc/syslib/mpc8xx_devices.c @@ -218,6 +218,14 @@ struct platform_device ppc_sys_platform_devices[] = { }, }, }, + + [MPC8xx_MDIO_FEC] = { + .name = "fsl-cpm-fec-mdio", + .id = 0, + .num_resources = 0, + + }, + }; static int __init mach_mpc8xx_fixup(struct platform_device *pdev) diff --git a/arch/ppc/syslib/mpc8xx_sys.c b/arch/ppc/syslib/mpc8xx_sys.c index eee213284855..18ba1d7ff9f1 100644 --- a/arch/ppc/syslib/mpc8xx_sys.c +++ b/arch/ppc/syslib/mpc8xx_sys.c @@ -22,7 +22,7 @@ struct ppc_sys_spec ppc_sys_specs[] = { .ppc_sys_name = "MPC86X", .mask = 0xFFFFFFFF, .value = 0x00000000, - .num_devices = 7, + .num_devices = 8, .device_list = (enum ppc_sys_devices[]) { MPC8xx_CPM_FEC1, @@ -32,13 +32,14 @@ struct ppc_sys_spec ppc_sys_specs[] = { MPC8xx_CPM_SCC4, MPC8xx_CPM_SMC1, MPC8xx_CPM_SMC2, + MPC8xx_MDIO_FEC, }, }, { .ppc_sys_name = "MPC885", .mask = 0xFFFFFFFF, .value = 0x00000000, - .num_devices = 8, + .num_devices = 9, .device_list = (enum ppc_sys_devices[]) { MPC8xx_CPM_FEC1, @@ -49,6 +50,7 @@ struct ppc_sys_spec ppc_sys_specs[] = { MPC8xx_CPM_SCC4, MPC8xx_CPM_SMC1, MPC8xx_CPM_SMC2, + MPC8xx_MDIO_FEC, }, }, { /* default match */ diff --git a/arch/ppc/syslib/pq2_devices.c b/arch/ppc/syslib/pq2_devices.c index 8692d00c08c4..fefbc217a56d 100644 --- a/arch/ppc/syslib/pq2_devices.c +++ b/arch/ppc/syslib/pq2_devices.c @@ -369,6 +369,11 @@ struct platform_device ppc_sys_platform_devices[] = { }, }, }, + [MPC82xx_MDIO_BB] = { + .name = "fsl-bb-mdio", + .id = 0, + .num_resources = 0, + }, }; static int __init mach_mpc82xx_fixup(struct platform_device *pdev) diff --git a/arch/ppc/syslib/pq2_sys.c b/arch/ppc/syslib/pq2_sys.c index fee8948162b9..f52600c0db20 100644 --- a/arch/ppc/syslib/pq2_sys.c +++ b/arch/ppc/syslib/pq2_sys.c @@ -139,13 +139,14 @@ struct ppc_sys_spec ppc_sys_specs[] = { .ppc_sys_name = "8272", .mask = 0x0000ff00, .value = 0x00000c00, - .num_devices = 12, + .num_devices = 13, .device_list = (enum ppc_sys_devices[]) { MPC82xx_CPM_FCC1, MPC82xx_CPM_FCC2, MPC82xx_CPM_SCC1, MPC82xx_CPM_SCC2, MPC82xx_CPM_SCC3, MPC82xx_CPM_SCC4, MPC82xx_CPM_SMC1, MPC82xx_CPM_SMC2, MPC82xx_CPM_SPI, MPC82xx_CPM_I2C, MPC82xx_CPM_USB, MPC82xx_SEC1, + MPC82xx_MDIO_BB, }, }, /* below is a list of the 8280 family of processors */ diff --git a/include/asm-ppc/cpm2.h b/include/asm-ppc/cpm2.h index c70344b91049..f6a7ff04ffe5 100644 --- a/include/asm-ppc/cpm2.h +++ b/include/asm-ppc/cpm2.h @@ -1093,5 +1093,100 @@ typedef struct im_idma { #define FCC_PSMR_RMII ((uint)0x00020000) /* Use RMII interface */ +/* FCC iop & clock configuration. BSP code is responsible to define Fx_RXCLK & Fx_TXCLK + * in order to use clock-computing stuff below for the FCC x + */ + +/* Automatically generates register configurations */ +#define PC_CLK(x) ((uint)(1<<(x-1))) /* FCC CLK I/O ports */ + +#define CMXFCR_RF1CS(x) ((uint)((x-5)<<27)) /* FCC1 Receive Clock Source */ +#define CMXFCR_TF1CS(x) ((uint)((x-5)<<24)) /* FCC1 Transmit Clock Source */ +#define CMXFCR_RF2CS(x) ((uint)((x-9)<<19)) /* FCC2 Receive Clock Source */ +#define CMXFCR_TF2CS(x) ((uint)((x-9)<<16)) /* FCC2 Transmit Clock Source */ +#define CMXFCR_RF3CS(x) ((uint)((x-9)<<11)) /* FCC3 Receive Clock Source */ +#define CMXFCR_TF3CS(x) ((uint)((x-9)<<8)) /* FCC3 Transmit Clock Source */ + +#define PC_F1RXCLK PC_CLK(F1_RXCLK) +#define PC_F1TXCLK PC_CLK(F1_TXCLK) +#define CMX1_CLK_ROUTE (CMXFCR_RF1CS(F1_RXCLK) | CMXFCR_TF1CS(F1_TXCLK)) +#define CMX1_CLK_MASK ((uint)0xff000000) + +#define PC_F2RXCLK PC_CLK(F2_RXCLK) +#define PC_F2TXCLK PC_CLK(F2_TXCLK) +#define CMX2_CLK_ROUTE (CMXFCR_RF2CS(F2_RXCLK) | CMXFCR_TF2CS(F2_TXCLK)) +#define CMX2_CLK_MASK ((uint)0x00ff0000) + +#define PC_F3RXCLK PC_CLK(F3_RXCLK) +#define PC_F3TXCLK PC_CLK(F3_TXCLK) +#define CMX3_CLK_ROUTE (CMXFCR_RF3CS(F3_RXCLK) | CMXFCR_TF3CS(F3_TXCLK)) +#define CMX3_CLK_MASK ((uint)0x0000ff00) + +#define CPMUX_CLK_MASK (CMX3_CLK_MASK | CMX2_CLK_MASK) +#define CPMUX_CLK_ROUTE (CMX3_CLK_ROUTE | CMX2_CLK_ROUTE) + +#define CLK_TRX (PC_F3TXCLK | PC_F3RXCLK | PC_F2TXCLK | PC_F2RXCLK) + +/* I/O Pin assignment for FCC1. I don't yet know the best way to do this, + * but there is little variation among the choices. + */ +#define PA1_COL 0x00000001U +#define PA1_CRS 0x00000002U +#define PA1_TXER 0x00000004U +#define PA1_TXEN 0x00000008U +#define PA1_RXDV 0x00000010U +#define PA1_RXER 0x00000020U +#define PA1_TXDAT 0x00003c00U +#define PA1_RXDAT 0x0003c000U +#define PA1_PSORA0 (PA1_RXDAT | PA1_TXDAT) +#define PA1_PSORA1 (PA1_COL | PA1_CRS | PA1_TXER | PA1_TXEN | \ + PA1_RXDV | PA1_RXER) +#define PA1_DIRA0 (PA1_RXDAT | PA1_CRS | PA1_COL | PA1_RXER | PA1_RXDV) +#define PA1_DIRA1 (PA1_TXDAT | PA1_TXEN | PA1_TXER) + + +/* I/O Pin assignment for FCC2. I don't yet know the best way to do this, + * but there is little variation among the choices. + */ +#define PB2_TXER 0x00000001U +#define PB2_RXDV 0x00000002U +#define PB2_TXEN 0x00000004U +#define PB2_RXER 0x00000008U +#define PB2_COL 0x00000010U +#define PB2_CRS 0x00000020U +#define PB2_TXDAT 0x000003c0U +#define PB2_RXDAT 0x00003c00U +#define PB2_PSORB0 (PB2_RXDAT | PB2_TXDAT | PB2_CRS | PB2_COL | \ + PB2_RXER | PB2_RXDV | PB2_TXER) +#define PB2_PSORB1 (PB2_TXEN) +#define PB2_DIRB0 (PB2_RXDAT | PB2_CRS | PB2_COL | PB2_RXER | PB2_RXDV) +#define PB2_DIRB1 (PB2_TXDAT | PB2_TXEN | PB2_TXER) + + +/* I/O Pin assignment for FCC3. I don't yet know the best way to do this, + * but there is little variation among the choices. + */ +#define PB3_RXDV 0x00004000U +#define PB3_RXER 0x00008000U +#define PB3_TXER 0x00010000U +#define PB3_TXEN 0x00020000U +#define PB3_COL 0x00040000U +#define PB3_CRS 0x00080000U +#define PB3_TXDAT 0x0f000000U +#define PC3_TXDAT 0x00000010U +#define PB3_RXDAT 0x00f00000U +#define PB3_PSORB0 (PB3_RXDAT | PB3_TXDAT | PB3_CRS | PB3_COL | \ + PB3_RXER | PB3_RXDV | PB3_TXER | PB3_TXEN) +#define PB3_PSORB1 0 +#define PB3_DIRB0 (PB3_RXDAT | PB3_CRS | PB3_COL | PB3_RXER | PB3_RXDV) +#define PB3_DIRB1 (PB3_TXDAT | PB3_TXEN | PB3_TXER) +#define PC3_DIRC1 (PC3_TXDAT) + +/* Handy macro to specify mem for FCCs*/ +#define FCC_MEM_OFFSET(x) (CPM_FCC_SPECIAL_BASE + (x*128)) +#define FCC1_MEM_OFFSET FCC_MEM_OFFSET(0) +#define FCC2_MEM_OFFSET FCC_MEM_OFFSET(1) +#define FCC2_MEM_OFFSET FCC_MEM_OFFSET(2) + #endif /* __CPM2__ */ #endif /* __KERNEL__ */ diff --git a/include/asm-ppc/mpc8260.h b/include/asm-ppc/mpc8260.h index 4b93481e7679..23579d4afae7 100644 --- a/include/asm-ppc/mpc8260.h +++ b/include/asm-ppc/mpc8260.h @@ -82,6 +82,7 @@ enum ppc_sys_devices { MPC82xx_CPM_SMC2, MPC82xx_CPM_USB, MPC82xx_SEC1, + MPC82xx_MDIO_BB, NUM_PPC_SYS_DEVS, }; diff --git a/include/asm-ppc/mpc8xx.h b/include/asm-ppc/mpc8xx.h index adcce33f20ae..d3a2f2fe230c 100644 --- a/include/asm-ppc/mpc8xx.h +++ b/include/asm-ppc/mpc8xx.h @@ -110,6 +110,7 @@ enum ppc_sys_devices { MPC8xx_CPM_SMC1, MPC8xx_CPM_SMC2, MPC8xx_CPM_USB, + MPC8xx_MDIO_FEC, NUM_PPC_SYS_DEVS, }; diff --git a/include/linux/fs_enet_pd.h b/include/linux/fs_enet_pd.h index 783c476b8674..74ed35a00a94 100644 --- a/include/linux/fs_enet_pd.h +++ b/include/linux/fs_enet_pd.h @@ -69,34 +69,21 @@ enum fs_ioport { fsiop_porte, }; -struct fs_mii_bus_info { - int method; /* mii method */ - int id; /* the id of the mii_bus */ - int disable_aneg; /* if the controller needs to negothiate speed & duplex */ - int lpa; /* the default board-specific vallues will be applied otherwise */ - - union { - struct { - int duplex; - int speed; - } fixed; - - struct { - /* nothing */ - } fec; - - struct { - /* nothing */ - } scc; - - struct { - int mdio_port; /* port & bit for MDIO */ - int mdio_bit; - int mdc_port; /* port & bit for MDC */ - int mdc_bit; - int delay; /* delay in us */ - } bitbang; - } i; +struct fs_mii_bit { + u32 offset; + u8 bit; + u8 polarity; +}; +struct fs_mii_bb_platform_info { + struct fs_mii_bit mdio_dir; + struct fs_mii_bit mdio_dat; + struct fs_mii_bit mdc_dat; + int mdio_port; /* port & bit for MDIO */ + int mdio_bit; + int mdc_port; /* port & bit for MDC */ + int mdc_bit; + int delay; /* delay in us */ + int irq[32]; /* irqs per phy's */ }; struct fs_platform_info { @@ -119,6 +106,7 @@ struct fs_platform_info { u32 device_flags; int phy_addr; /* the phy address (-1 no phy) */ + const char* bus_id; int phy_irq; /* the phy irq (if it exists) */ const struct fs_mii_bus_info *bus_info; @@ -130,6 +118,10 @@ struct fs_platform_info { int napi_weight; /* NAPI weight */ int use_rmii; /* use RMII mode */ + int has_phy; /* if the network is phy container as well...*/ +}; +struct fs_mii_fec_platform_info { + u32 irq[32]; + u32 mii_speed; }; - #endif From a76b044af147135b5fb7570aba35d4908f143cc9 Mon Sep 17 00:00:00 2001 From: Krzysztof Halasa Date: Wed, 16 Aug 2006 01:52:23 +0200 Subject: [PATCH 249/488] [PATCH] WAN: fix C101 card carrier handling Hi, One of my recent changes broke C101 carrier handling, this patch fixes it. Also fixes an old TX underrun checking bug. 2.6.18 material. Please apply. Thanks. Signed-off-by: Krzysztof Halasa Signed-off-by: Jeff Garzik --- drivers/net/wan/c101.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/net/wan/c101.c b/drivers/net/wan/c101.c index 435e91ec4620..6b63b350cd52 100644 --- a/drivers/net/wan/c101.c +++ b/drivers/net/wan/c101.c @@ -118,7 +118,7 @@ static inline void openwin(card_t *card, u8 page) static inline void set_carrier(port_t *port) { - if (!sca_in(MSCI1_OFFSET + ST3, port) & ST3_DCD) + if (!(sca_in(MSCI1_OFFSET + ST3, port) & ST3_DCD)) netif_carrier_on(port_to_dev(port)); else netif_carrier_off(port_to_dev(port)); @@ -127,10 +127,10 @@ static inline void set_carrier(port_t *port) static void sca_msci_intr(port_t *port) { - u8 stat = sca_in(MSCI1_OFFSET + ST1, port); /* read MSCI ST1 status */ + u8 stat = sca_in(MSCI0_OFFSET + ST1, port); /* read MSCI ST1 status */ - /* Reset MSCI TX underrun status bit */ - sca_out(stat & ST1_UDRN, MSCI0_OFFSET + ST1, port); + /* Reset MSCI TX underrun and CDCD (ignored) status bit */ + sca_out(stat & (ST1_UDRN | ST1_CDCD), MSCI0_OFFSET + ST1, port); if (stat & ST1_UDRN) { struct net_device_stats *stats = hdlc_stats(port_to_dev(port)); @@ -138,6 +138,7 @@ static void sca_msci_intr(port_t *port) stats->tx_fifo_errors++; } + stat = sca_in(MSCI1_OFFSET + ST1, port); /* read MSCI1 ST1 status */ /* Reset MSCI CDCD status bit - uses ch#2 DCD input */ sca_out(stat & ST1_CDCD, MSCI1_OFFSET + ST1, port); From 78bd4d484f81a611ef6ff02f909e576cb9aac7f2 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Mon, 21 Aug 2006 08:33:23 +0200 Subject: [PATCH 250/488] [PATCH] sys_ioprio_set: minor do_each_thread+break fix From include/linux/sched.h: * Careful: do_each_thread/while_each_thread is a double loop so * 'break' will not work as expected - use goto instead. */ Signed-off-by: Oleg Nesterov Signed-off-by: Jens Axboe --- fs/ioprio.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/ioprio.c b/fs/ioprio.c index 93aa5715f224..3db31038e9ab 100644 --- a/fs/ioprio.c +++ b/fs/ioprio.c @@ -111,9 +111,9 @@ asmlinkage long sys_ioprio_set(int which, int who, int ioprio) continue; ret = set_task_ioprio(p, ioprio); if (ret) - break; + goto free_uid; } while_each_thread(g, p); - +free_uid: if (who) free_uid(user); break; From 9f83e45eb54fc7198dc59fc63255341851ba4c48 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Mon, 21 Aug 2006 08:34:15 +0200 Subject: [PATCH 251/488] [PATCH] Fix current_io_context() vs set_task_ioprio() race I know nothing about io scheduler, but I suspect set_task_ioprio() is not safe. current_io_context() initializes "struct io_context", then sets ->io_context. set_task_ioprio() running on another cpu may see the changes out of order, so ->set_ioprio(ioc) may use io_context which was not initialized properly. Signed-off-by: Oleg Nesterov Signed-off-by: Jens Axboe --- block/ll_rw_blk.c | 2 ++ fs/ioprio.c | 3 +++ 2 files changed, 5 insertions(+) diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c index 61d6b3c65b66..ddd9253f9d55 100644 --- a/block/ll_rw_blk.c +++ b/block/ll_rw_blk.c @@ -3628,6 +3628,8 @@ struct io_context *current_io_context(gfp_t gfp_flags) ret->nr_batch_requests = 0; /* because this is 0 */ ret->aic = NULL; ret->cic_root.rb_node = NULL; + /* make sure set_task_ioprio() sees the settings above */ + smp_wmb(); tsk->io_context = ret; } diff --git a/fs/ioprio.c b/fs/ioprio.c index 3db31038e9ab..06578311c63f 100644 --- a/fs/ioprio.c +++ b/fs/ioprio.c @@ -44,6 +44,9 @@ static int set_task_ioprio(struct task_struct *task, int ioprio) task->ioprio = ioprio; ioc = task->io_context; + /* see wmb() in current_io_context() */ + smp_read_barrier_depends(); + if (ioc && ioc->set_ioprio) ioc->set_ioprio(ioc, ioprio); From e014ff8d4285b81f0de0719d8eee72bc50bfd4be Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Mon, 21 Aug 2006 10:02:50 +0200 Subject: [PATCH 252/488] [PATCH] uninline ioprio_best() Saves 376 bytes (5 callers) for me. Signed-off-by: Oleg Nesterov Signed-off-by: Jens Axboe --- fs/ioprio.c | 23 +++++++++++++++++++++++ include/linux/ioprio.h | 23 +---------------------- 2 files changed, 24 insertions(+), 22 deletions(-) diff --git a/fs/ioprio.c b/fs/ioprio.c index 06578311c63f..78b1deae3fa2 100644 --- a/fs/ioprio.c +++ b/fs/ioprio.c @@ -140,6 +140,29 @@ out: return ret; } +int ioprio_best(unsigned short aprio, unsigned short bprio) +{ + unsigned short aclass = IOPRIO_PRIO_CLASS(aprio); + unsigned short bclass = IOPRIO_PRIO_CLASS(bprio); + + if (!ioprio_valid(aprio)) + return bprio; + if (!ioprio_valid(bprio)) + return aprio; + + if (aclass == IOPRIO_CLASS_NONE) + aclass = IOPRIO_CLASS_BE; + if (bclass == IOPRIO_CLASS_NONE) + bclass = IOPRIO_CLASS_BE; + + if (aclass == bclass) + return min(aprio, bprio); + if (aclass > bclass) + return bprio; + else + return aprio; +} + asmlinkage long sys_ioprio_get(int which, int who) { struct task_struct *g, *p; diff --git a/include/linux/ioprio.h b/include/linux/ioprio.h index 88d5961f7a3f..8e2042b9d471 100644 --- a/include/linux/ioprio.h +++ b/include/linux/ioprio.h @@ -59,27 +59,6 @@ static inline int task_nice_ioprio(struct task_struct *task) /* * For inheritance, return the highest of the two given priorities */ -static inline int ioprio_best(unsigned short aprio, unsigned short bprio) -{ - unsigned short aclass = IOPRIO_PRIO_CLASS(aprio); - unsigned short bclass = IOPRIO_PRIO_CLASS(bprio); - - if (!ioprio_valid(aprio)) - return bprio; - if (!ioprio_valid(bprio)) - return aprio; - - if (aclass == IOPRIO_CLASS_NONE) - aclass = IOPRIO_CLASS_BE; - if (bclass == IOPRIO_CLASS_NONE) - bclass = IOPRIO_CLASS_BE; - - if (aclass == bclass) - return min(aprio, bprio); - if (aclass > bclass) - return bprio; - else - return aprio; -} +extern int ioprio_best(unsigned short aprio, unsigned short bprio); #endif From be33c3a67bb717508ab1eab0f2fa570fabcbc4d2 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Mon, 21 Aug 2006 08:36:12 +0200 Subject: [PATCH 253/488] [PATCH] cfq_cic_link: fix usage of wrong cfq_io_context Obviously, cfq_cic_link() shouldn't free a just allocated cfq_io_context? The dead key is from __cic, so drop that. Signed-off-by: Oleg Nesterov Signed-off-by: Jens Axboe --- block/cfq-iosched.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index aae3123bf3ee..3a3aee08ec5f 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -1561,7 +1561,7 @@ restart: /* ->key must be copied to avoid race with cfq_exit_queue() */ k = __cic->key; if (unlikely(!k)) { - cfq_drop_dead_cic(ioc, cic); + cfq_drop_dead_cic(ioc, __cic); goto restart; } From f1a58ecae527fc67c87ce4dcb9e73894f64aadfe Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Sun, 20 Aug 2006 17:56:38 +0900 Subject: [PATCH 254/488] [PATCH] ata_piix: fix ghost device probing by honoring PCS present bits Move out PCS handling from piix_sata_prereset() into piix_sata_present_mask() and use it from newly implemented piix_sata_softreset(). Class codes for devices which are indicated to be absent by PCS are cleared to ATA_DEV_NONE. This fixes ghost device problem reported on ICH6 and 7. This patch moves PCS handling from prereset to softreset, which makes two behavior changes. * perform softreset even when PCS indicates no device * PCS handling is repeated before retrying softresets due to reset failures. Both behavior changes are intended and more consistent with how other drivers behave. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/scsi/ata_piix.c | 60 +++++++++++++++++++++++++++++------------ 1 file changed, 43 insertions(+), 17 deletions(-) diff --git a/drivers/scsi/ata_piix.c b/drivers/scsi/ata_piix.c index 5e8afc876980..01b3530cf6df 100644 --- a/drivers/scsi/ata_piix.c +++ b/drivers/scsi/ata_piix.c @@ -531,27 +531,25 @@ static void piix_pata_error_handler(struct ata_port *ap) } /** - * piix_sata_prereset - prereset for SATA host controller + * piix_sata_present_mask - determine present mask for SATA host controller * @ap: Target port * - * Reads and configures SATA PCI device's PCI config register - * Port Configuration and Status (PCS) to determine port and - * device availability. Return -ENODEV to skip reset if no - * device is present. + * Reads SATA PCI device's PCI config register Port Configuration + * and Status (PCS) to determine port and device availability. * * LOCKING: * None (inherited from caller). * * RETURNS: - * 0 if device is present, -ENODEV otherwise. + * determined present_mask */ -static int piix_sata_prereset(struct ata_port *ap) +static unsigned int piix_sata_present_mask(struct ata_port *ap) { struct pci_dev *pdev = to_pci_dev(ap->host_set->dev); struct piix_host_priv *hpriv = ap->host_set->private_data; const unsigned int *map = hpriv->map; int base = 2 * ap->hard_port_no; - unsigned int present = 0; + unsigned int present_mask = 0; int port, i; u16 pcs; @@ -564,24 +562,52 @@ static int piix_sata_prereset(struct ata_port *ap) continue; if ((ap->flags & PIIX_FLAG_IGNORE_PCS) || (pcs & 1 << (hpriv->map_db->present_shift + port))) - present = 1; + present_mask |= 1 << i; } - DPRINTK("ata%u: LEAVE, pcs=0x%x present=0x%x\n", - ap->id, pcs, present); + DPRINTK("ata%u: LEAVE, pcs=0x%x present_mask=0x%x\n", + ap->id, pcs, present_mask); - if (!present) { - ata_port_printk(ap, KERN_INFO, "SATA port has no device.\n"); - ap->eh_context.i.action &= ~ATA_EH_RESET_MASK; - return 0; + return present_mask; +} + +/** + * piix_sata_softreset - reset SATA host port via ATA SRST + * @ap: port to reset + * @classes: resulting classes of attached devices + * + * Reset SATA host port via ATA SRST. On controllers with + * reliable PCS present bits, the bits are used to determine + * device presence. + * + * LOCKING: + * Kernel thread context (may sleep) + * + * RETURNS: + * 0 on success, -errno otherwise. + */ +static int piix_sata_softreset(struct ata_port *ap, unsigned int *classes) +{ + unsigned int present_mask; + int i, rc; + + present_mask = piix_sata_present_mask(ap); + + rc = ata_std_softreset(ap, classes); + if (rc) + return rc; + + for (i = 0; i < ATA_MAX_DEVICES; i++) { + if (!(present_mask & (1 << i))) + classes[i] = ATA_DEV_NONE; } - return ata_std_prereset(ap); + return 0; } static void piix_sata_error_handler(struct ata_port *ap) { - ata_bmdma_drive_eh(ap, piix_sata_prereset, ata_std_softreset, NULL, + ata_bmdma_drive_eh(ap, ata_std_prereset, piix_sata_softreset, NULL, ata_std_postreset); } From c164a9ba0a8870c5c9d353f63085319931d69f23 Mon Sep 17 00:00:00 2001 From: Sridhar Samudrala Date: Tue, 22 Aug 2006 11:50:39 -0700 Subject: [PATCH 255/488] Fix sctp privilege elevation (CVE-2006-3745) sctp_make_abort_user() now takes the msg_len along with the msg so that we don't have to recalculate the bytes in iovec. It also uses memcpy_fromiovec() so that we don't go beyond the length allocated. It is good to have this fix even if verify_iovec() is fixed to return error on overflow. Signed-off-by: Sridhar Samudrala Signed-off-by: Greg Kroah-Hartman --- include/net/sctp/sctp.h | 13 ------------- include/net/sctp/sm.h | 3 +-- net/sctp/sm_make_chunk.c | 30 +++++++++--------------------- net/sctp/sm_statefuns.c | 20 ++++---------------- net/sctp/socket.c | 10 +++++++++- 5 files changed, 23 insertions(+), 53 deletions(-) diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h index a9663b49ea54..92eae0e0f3f1 100644 --- a/include/net/sctp/sctp.h +++ b/include/net/sctp/sctp.h @@ -404,19 +404,6 @@ static inline int sctp_list_single_entry(struct list_head *head) return ((head->next != head) && (head->next == head->prev)); } -/* Calculate the size (in bytes) occupied by the data of an iovec. */ -static inline size_t get_user_iov_size(struct iovec *iov, int iovlen) -{ - size_t retval = 0; - - for (; iovlen > 0; --iovlen) { - retval += iov->iov_len; - iov++; - } - - return retval; -} - /* Generate a random jitter in the range of -50% ~ +50% of input RTO. */ static inline __s32 sctp_jitter(__u32 rto) { diff --git a/include/net/sctp/sm.h b/include/net/sctp/sm.h index 1eac3d0eb7a9..de313de4fefe 100644 --- a/include/net/sctp/sm.h +++ b/include/net/sctp/sm.h @@ -221,8 +221,7 @@ struct sctp_chunk *sctp_make_abort_no_data(const struct sctp_association *, const struct sctp_chunk *, __u32 tsn); struct sctp_chunk *sctp_make_abort_user(const struct sctp_association *, - const struct sctp_chunk *, - const struct msghdr *); + const struct msghdr *, size_t msg_len); struct sctp_chunk *sctp_make_abort_violation(const struct sctp_association *, const struct sctp_chunk *, const __u8 *, diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c index 4f11f5858209..17b509282cf2 100644 --- a/net/sctp/sm_make_chunk.c +++ b/net/sctp/sm_make_chunk.c @@ -806,38 +806,26 @@ no_mem: /* Helper to create ABORT with a SCTP_ERROR_USER_ABORT error. */ struct sctp_chunk *sctp_make_abort_user(const struct sctp_association *asoc, - const struct sctp_chunk *chunk, - const struct msghdr *msg) + const struct msghdr *msg, + size_t paylen) { struct sctp_chunk *retval; - void *payload = NULL, *payoff; - size_t paylen = 0; - struct iovec *iov = NULL; - int iovlen = 0; + void *payload = NULL; + int err; - if (msg) { - iov = msg->msg_iov; - iovlen = msg->msg_iovlen; - paylen = get_user_iov_size(iov, iovlen); - } - - retval = sctp_make_abort(asoc, chunk, sizeof(sctp_errhdr_t) + paylen); + retval = sctp_make_abort(asoc, NULL, sizeof(sctp_errhdr_t) + paylen); if (!retval) goto err_chunk; if (paylen) { /* Put the msg_iov together into payload. */ - payload = kmalloc(paylen, GFP_ATOMIC); + payload = kmalloc(paylen, GFP_KERNEL); if (!payload) goto err_payload; - payoff = payload; - for (; iovlen > 0; --iovlen) { - if (copy_from_user(payoff, iov->iov_base,iov->iov_len)) - goto err_copy; - payoff += iov->iov_len; - iov++; - } + err = memcpy_fromiovec(payload, msg->msg_iov, paylen); + if (err < 0) + goto err_copy; } sctp_init_cause(retval, SCTP_ERROR_USER_ABORT, payload, paylen); diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c index ead3f1b0ea3d..5b5ae7958322 100644 --- a/net/sctp/sm_statefuns.c +++ b/net/sctp/sm_statefuns.c @@ -4031,18 +4031,12 @@ sctp_disposition_t sctp_sf_do_9_1_prm_abort( * from its upper layer, but retransmits data to the far end * if necessary to fill gaps. */ - struct msghdr *msg = arg; - struct sctp_chunk *abort; + struct sctp_chunk *abort = arg; sctp_disposition_t retval; retval = SCTP_DISPOSITION_CONSUME; - /* Generate ABORT chunk to send the peer. */ - abort = sctp_make_abort_user(asoc, NULL, msg); - if (!abort) - retval = SCTP_DISPOSITION_NOMEM; - else - sctp_add_cmd_sf(commands, SCTP_CMD_REPLY, SCTP_CHUNK(abort)); + sctp_add_cmd_sf(commands, SCTP_CMD_REPLY, SCTP_CHUNK(abort)); /* Even if we can't send the ABORT due to low memory delete the * TCB. This is a departure from our typical NOMEM handling. @@ -4166,8 +4160,7 @@ sctp_disposition_t sctp_sf_cookie_wait_prm_abort( void *arg, sctp_cmd_seq_t *commands) { - struct msghdr *msg = arg; - struct sctp_chunk *abort; + struct sctp_chunk *abort = arg; sctp_disposition_t retval; /* Stop T1-init timer */ @@ -4175,12 +4168,7 @@ sctp_disposition_t sctp_sf_cookie_wait_prm_abort( SCTP_TO(SCTP_EVENT_TIMEOUT_T1_INIT)); retval = SCTP_DISPOSITION_CONSUME; - /* Generate ABORT chunk to send the peer */ - abort = sctp_make_abort_user(asoc, NULL, msg); - if (!abort) - retval = SCTP_DISPOSITION_NOMEM; - else - sctp_add_cmd_sf(commands, SCTP_CMD_REPLY, SCTP_CHUNK(abort)); + sctp_add_cmd_sf(commands, SCTP_CMD_REPLY, SCTP_CHUNK(abort)); sctp_add_cmd_sf(commands, SCTP_CMD_NEW_STATE, SCTP_STATE(SCTP_STATE_CLOSED)); diff --git a/net/sctp/socket.c b/net/sctp/socket.c index 54722e622e6d..fde3f55bfd4b 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -1520,8 +1520,16 @@ SCTP_STATIC int sctp_sendmsg(struct kiocb *iocb, struct sock *sk, goto out_unlock; } if (sinfo_flags & SCTP_ABORT) { + struct sctp_chunk *chunk; + + chunk = sctp_make_abort_user(asoc, msg, msg_len); + if (!chunk) { + err = -ENOMEM; + goto out_unlock; + } + SCTP_DEBUG_PRINTK("Aborting association: %p\n", asoc); - sctp_primitive_ABORT(asoc, msg); + sctp_primitive_ABORT(asoc, chunk); err = 0; goto out_unlock; } From 00a2b0f6dd2372842df73de72d51621b539fea44 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Tue, 15 Aug 2006 13:56:26 +0200 Subject: [PATCH 256/488] Fix possible UDF deadlock and memory corruption (CVE-2006-4145) UDF code is not really ready to handle extents larger that 1GB. This is the easy way to forbid creating those. Also truncation code did not count with the case when there are no extents in the file and we are extending the file. Signed-off-by: Jan Kara Signed-off-by: Greg Kroah-Hartman --- fs/udf/super.c | 2 +- fs/udf/truncate.c | 70 ++++++++++++++++++++++++++++------------------- 2 files changed, 43 insertions(+), 29 deletions(-) diff --git a/fs/udf/super.c b/fs/udf/super.c index 7de172efa084..fcce1a21a51b 100644 --- a/fs/udf/super.c +++ b/fs/udf/super.c @@ -1659,7 +1659,7 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent) iput(inode); goto error_out; } - sb->s_maxbytes = MAX_LFS_FILESIZE; + sb->s_maxbytes = 1<<30; return 0; error_out: diff --git a/fs/udf/truncate.c b/fs/udf/truncate.c index e1b0e8cfecb4..0abd66ce36ea 100644 --- a/fs/udf/truncate.c +++ b/fs/udf/truncate.c @@ -239,38 +239,52 @@ void udf_truncate_extents(struct inode * inode) { if (offset) { - extoffset -= adsize; - etype = udf_next_aext(inode, &bloc, &extoffset, &eloc, &elen, &bh, 1); - if (etype == (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30)) - { - extoffset -= adsize; - elen = EXT_NOT_RECORDED_NOT_ALLOCATED | (elen + offset); - udf_write_aext(inode, bloc, &extoffset, eloc, elen, bh, 0); - } - else if (etype == (EXT_NOT_RECORDED_ALLOCATED >> 30)) - { - kernel_lb_addr neloc = { 0, 0 }; - extoffset -= adsize; - nelen = EXT_NOT_RECORDED_NOT_ALLOCATED | - ((elen + offset + inode->i_sb->s_blocksize - 1) & - ~(inode->i_sb->s_blocksize - 1)); - udf_write_aext(inode, bloc, &extoffset, neloc, nelen, bh, 1); - udf_add_aext(inode, &bloc, &extoffset, eloc, (etype << 30) | elen, &bh, 1); - } - else - { - if (elen & (inode->i_sb->s_blocksize - 1)) - { - extoffset -= adsize; - elen = EXT_RECORDED_ALLOCATED | - ((elen + inode->i_sb->s_blocksize - 1) & - ~(inode->i_sb->s_blocksize - 1)); - udf_write_aext(inode, bloc, &extoffset, eloc, elen, bh, 1); - } + /* + * OK, there is not extent covering inode->i_size and + * no extent above inode->i_size => truncate is + * extending the file by 'offset'. + */ + if ((!bh && extoffset == udf_file_entry_alloc_offset(inode)) || + (bh && extoffset == sizeof(struct allocExtDesc))) { + /* File has no extents at all! */ memset(&eloc, 0x00, sizeof(kernel_lb_addr)); elen = EXT_NOT_RECORDED_NOT_ALLOCATED | offset; udf_add_aext(inode, &bloc, &extoffset, eloc, elen, &bh, 1); } + else { + extoffset -= adsize; + etype = udf_next_aext(inode, &bloc, &extoffset, &eloc, &elen, &bh, 1); + if (etype == (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30)) + { + extoffset -= adsize; + elen = EXT_NOT_RECORDED_NOT_ALLOCATED | (elen + offset); + udf_write_aext(inode, bloc, &extoffset, eloc, elen, bh, 0); + } + else if (etype == (EXT_NOT_RECORDED_ALLOCATED >> 30)) + { + kernel_lb_addr neloc = { 0, 0 }; + extoffset -= adsize; + nelen = EXT_NOT_RECORDED_NOT_ALLOCATED | + ((elen + offset + inode->i_sb->s_blocksize - 1) & + ~(inode->i_sb->s_blocksize - 1)); + udf_write_aext(inode, bloc, &extoffset, neloc, nelen, bh, 1); + udf_add_aext(inode, &bloc, &extoffset, eloc, (etype << 30) | elen, &bh, 1); + } + else + { + if (elen & (inode->i_sb->s_blocksize - 1)) + { + extoffset -= adsize; + elen = EXT_RECORDED_ALLOCATED | + ((elen + inode->i_sb->s_blocksize - 1) & + ~(inode->i_sb->s_blocksize - 1)); + udf_write_aext(inode, bloc, &extoffset, eloc, elen, bh, 1); + } + memset(&eloc, 0x00, sizeof(kernel_lb_addr)); + elen = EXT_NOT_RECORDED_NOT_ALLOCATED | offset; + udf_add_aext(inode, &bloc, &extoffset, eloc, elen, &bh, 1); + } + } } } UDF_I_LENEXTENTS(inode) = inode->i_size; From 2d8f613160ed303f5fe310f21bba334a4b074fa5 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Tue, 22 Aug 2006 21:22:13 +0400 Subject: [PATCH 257/488] elv_unregister: fix possible crash on module unload An exiting task or process which didn't do I/O yet have no io context, elv_unregister() should check it is not NULL. Signed-off-by: Oleg Nesterov Acked-by: Jens Axboe Signed-off-by: Greg Kroah-Hartman --- block/elevator.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/block/elevator.c b/block/elevator.c index bc7baeec0d10..9b72dc7c8a5c 100644 --- a/block/elevator.c +++ b/block/elevator.c @@ -765,7 +765,8 @@ void elv_unregister(struct elevator_type *e) read_lock(&tasklist_lock); do_each_thread(g, p) { task_lock(p); - e->ops.trim(p->io_context); + if (p->io_context) + e->ops.trim(p->io_context); task_unlock(p); } while_each_thread(g, p); read_unlock(&tasklist_lock); From e0b7cde9975e17a61b4511c7822803dfb7210011 Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Mon, 21 Aug 2006 15:31:08 -0700 Subject: [PATCH 258/488] [NETFILTER]: arp_tables: fix table locking in arpt_do_table table->private might change because of ruleset changes, don't use it without holding the lock. Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- net/ipv4/netfilter/arp_tables.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c index df4854cf598b..8d1d7a6e72a5 100644 --- a/net/ipv4/netfilter/arp_tables.c +++ b/net/ipv4/netfilter/arp_tables.c @@ -236,7 +236,7 @@ unsigned int arpt_do_table(struct sk_buff **pskb, struct arpt_entry *e, *back; const char *indev, *outdev; void *table_base; - struct xt_table_info *private = table->private; + struct xt_table_info *private; /* ARP header, plus 2 device addresses, plus 2 IP addresses. */ if (!pskb_may_pull((*pskb), (sizeof(struct arphdr) + @@ -248,6 +248,7 @@ unsigned int arpt_do_table(struct sk_buff **pskb, outdev = out ? out->name : nulldevname; read_lock_bh(&table->lock); + private = table->private; table_base = (void *)private->entries[smp_processor_id()]; e = get_entry(table_base, private->hook_entry[hook]); back = get_entry(table_base, private->underflow[hook]); From 316c1592bea94ead75301cb764523661fbbcc1ca Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Tue, 22 Aug 2006 00:06:11 -0700 Subject: [PATCH 259/488] [TCP]: Limit window scaling if window is clamped. This small change allows for easy per-route workarounds for broken hosts or middleboxes that are not compliant with TCP standards for window scaling. Rather than having to turn off window scaling globally. This patch allows reducing or disabling window scaling if window clamp is present. Example: Mark Lord reported a problem with 2.6.17 kernel being unable to access http://www.everymac.com # ip route add 216.145.246.23/32 via 10.8.0.1 window 65535 Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller --- net/ipv4/tcp_output.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 507adefbc17c..b4f3ffe1b3b4 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -201,6 +201,7 @@ void tcp_select_initial_window(int __space, __u32 mss, * See RFC1323 for an explanation of the limit to 14 */ space = max_t(u32, sysctl_tcp_rmem[2], sysctl_rmem_max); + space = min_t(u32, space, *window_clamp); while (space > 65535 && (*rcv_wscale) < 14) { space >>= 1; (*rcv_wscale)++; From 3ffaa8c7c0f884171a273cd2145b8fbbf233ba22 Mon Sep 17 00:00:00 2001 From: Michael Rash Date: Tue, 22 Aug 2006 00:45:22 -0700 Subject: [PATCH 260/488] [TEXTSEARCH]: Fix Boyer Moore initialization bug The pattern is set after trying to compute the prefix table, which tries to use it. Initialize it before calling compute_prefix_tbl, make compute_prefix_tbl consistently use only the data from struct ts_bm and remove the now unnecessary arguments. Signed-off-by: Michael Rash Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- lib/ts_bm.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/lib/ts_bm.c b/lib/ts_bm.c index 0110e4414805..d90822c378a4 100644 --- a/lib/ts_bm.c +++ b/lib/ts_bm.c @@ -111,15 +111,14 @@ static int subpattern(u8 *pattern, int i, int j, int g) return ret; } -static void compute_prefix_tbl(struct ts_bm *bm, const u8 *pattern, - unsigned int len) +static void compute_prefix_tbl(struct ts_bm *bm) { int i, j, g; for (i = 0; i < ASIZE; i++) - bm->bad_shift[i] = len; - for (i = 0; i < len - 1; i++) - bm->bad_shift[pattern[i]] = len - 1 - i; + bm->bad_shift[i] = bm->patlen; + for (i = 0; i < bm->patlen - 1; i++) + bm->bad_shift[bm->pattern[i]] = bm->patlen - 1 - i; /* Compute the good shift array, used to match reocurrences * of a subpattern */ @@ -150,8 +149,8 @@ static struct ts_config *bm_init(const void *pattern, unsigned int len, bm = ts_config_priv(conf); bm->patlen = len; bm->pattern = (u8 *) bm->good_shift + prefix_tbl_len; - compute_prefix_tbl(bm, pattern, len); memcpy(bm->pattern, pattern, len); + compute_prefix_tbl(bm); return conf; } From c46f4774228e4dbf716b713e91ad20db50f629ef Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Mon, 21 Aug 2006 15:27:16 -0700 Subject: [PATCH 261/488] [SPARC64]: Fix pfn_pte() build failure. The "%uhi" needs to be "%%uhi" because we want a real "%" character in the assembler here, instead of an assembler variable expansion. Aparently older GCCs were more liberal and interpreted this %-letter as a literal "%" for whatever reason. Based upon a build failure report from Meelis Roos. Signed-off-by: David S. Miller --- include/asm-sparc64/pgtable.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/asm-sparc64/pgtable.h b/include/asm-sparc64/pgtable.h index 1ba19eb34ce3..ebfe395cfb87 100644 --- a/include/asm-sparc64/pgtable.h +++ b/include/asm-sparc64/pgtable.h @@ -234,7 +234,7 @@ static inline pte_t pfn_pte(unsigned long pfn, pgprot_t prot) sz_bits = 0UL; if (_PAGE_SZBITS_4U != 0UL || _PAGE_SZBITS_4V != 0UL) { __asm__ __volatile__( - "\n661: sethi %uhi(%1), %0\n" + "\n661: sethi %%uhi(%1), %0\n" " sllx %0, 32, %0\n" " .section .sun4v_2insn_patch, \"ax\"\n" " .word 661b\n" From 8ea371fb6df5a6e8056265e0089fd578e87797fc Mon Sep 17 00:00:00 2001 From: Florin Malita Date: Wed, 23 Aug 2006 00:45:33 -0400 Subject: [PATCH 262/488] Input: atkbd - fix overrun in atkbd_set_repeat_rate() This was introduced in commit 3d0f0fa0cb554541e10cb8cb84104e4b10828468: bounds checking is performed against period[32] while indexing delay[4]. Spotted by Coverity, CID 1376. Signed-off-by: Florin Malita Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/atkbd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/input/keyboard/atkbd.c b/drivers/input/keyboard/atkbd.c index 6bfa0cf4b1d2..a86afd0a5ef1 100644 --- a/drivers/input/keyboard/atkbd.c +++ b/drivers/input/keyboard/atkbd.c @@ -498,7 +498,7 @@ static int atkbd_set_repeat_rate(struct atkbd *atkbd) i++; dev->rep[REP_PERIOD] = period[i]; - while (j < ARRAY_SIZE(period) - 1 && delay[j] < dev->rep[REP_DELAY]) + while (j < ARRAY_SIZE(delay) - 1 && delay[j] < dev->rep[REP_DELAY]) j++; dev->rep[REP_DELAY] = delay[j]; From 72a623be00fa3d77724c1b0cac07c1bac60e70a5 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Wed, 23 Aug 2006 00:47:39 -0400 Subject: [PATCH 263/488] Input: wistron - fix crash due to referencing __initdata Remove __initdata markings from keymaps as they are used during normal driver operations. Signed-off-by: Dmitry Torokhov --- drivers/input/misc/wistron_btns.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/input/misc/wistron_btns.c b/drivers/input/misc/wistron_btns.c index a8efc1af36cb..de0f46dd9692 100644 --- a/drivers/input/misc/wistron_btns.c +++ b/drivers/input/misc/wistron_btns.c @@ -259,11 +259,11 @@ static int __init dmi_matched(struct dmi_system_id *dmi) return 1; } -static struct key_entry keymap_empty[] __initdata = { +static struct key_entry keymap_empty[] = { { KE_END, 0 } }; -static struct key_entry keymap_fs_amilo_pro_v2000[] __initdata = { +static struct key_entry keymap_fs_amilo_pro_v2000[] = { { KE_KEY, 0x01, KEY_HELP }, { KE_KEY, 0x11, KEY_PROG1 }, { KE_KEY, 0x12, KEY_PROG2 }, @@ -273,7 +273,7 @@ static struct key_entry keymap_fs_amilo_pro_v2000[] __initdata = { { KE_END, 0 } }; -static struct key_entry keymap_fujitsu_n3510[] __initdata = { +static struct key_entry keymap_fujitsu_n3510[] = { { KE_KEY, 0x11, KEY_PROG1 }, { KE_KEY, 0x12, KEY_PROG2 }, { KE_KEY, 0x36, KEY_WWW }, @@ -285,7 +285,7 @@ static struct key_entry keymap_fujitsu_n3510[] __initdata = { { KE_END, 0 } }; -static struct key_entry keymap_wistron_ms2111[] __initdata = { +static struct key_entry keymap_wistron_ms2111[] = { { KE_KEY, 0x11, KEY_PROG1 }, { KE_KEY, 0x12, KEY_PROG2 }, { KE_KEY, 0x13, KEY_PROG3 }, @@ -294,7 +294,7 @@ static struct key_entry keymap_wistron_ms2111[] __initdata = { { KE_END, 0 } }; -static struct key_entry keymap_wistron_ms2141[] __initdata = { +static struct key_entry keymap_wistron_ms2141[] = { { KE_KEY, 0x11, KEY_PROG1 }, { KE_KEY, 0x12, KEY_PROG2 }, { KE_WIFI, 0x30, 0 }, @@ -307,7 +307,7 @@ static struct key_entry keymap_wistron_ms2141[] __initdata = { { KE_END, 0 } }; -static struct key_entry keymap_acer_aspire_1500[] __initdata = { +static struct key_entry keymap_acer_aspire_1500[] = { { KE_KEY, 0x11, KEY_PROG1 }, { KE_KEY, 0x12, KEY_PROG2 }, { KE_WIFI, 0x30, 0 }, @@ -317,7 +317,7 @@ static struct key_entry keymap_acer_aspire_1500[] __initdata = { { KE_END, 0 } }; -static struct key_entry keymap_acer_travelmate_240[] __initdata = { +static struct key_entry keymap_acer_travelmate_240[] = { { KE_KEY, 0x31, KEY_MAIL }, { KE_KEY, 0x36, KEY_WWW }, { KE_KEY, 0x11, KEY_PROG1 }, @@ -327,7 +327,7 @@ static struct key_entry keymap_acer_travelmate_240[] __initdata = { { KE_END, 0 } }; -static struct key_entry keymap_aopen_1559as[] __initdata = { +static struct key_entry keymap_aopen_1559as[] = { { KE_KEY, 0x01, KEY_HELP }, { KE_KEY, 0x06, KEY_PROG3 }, { KE_KEY, 0x11, KEY_PROG1 }, From 90414be9523208f0b667fd58c22e26b8db0594de Mon Sep 17 00:00:00 2001 From: Pozsar Balazs Date: Wed, 23 Aug 2006 00:48:03 -0400 Subject: [PATCH 264/488] Input: psmouse - fix Intellimouse 4.0 initialization Revert the superfluous initilization causing some mice become jumpy. Signed-off-by: Pozsar Balazs Signed-off-by: Dmitry Torokhov --- drivers/input/mouse/psmouse-base.c | 7 ------- 1 file changed, 7 deletions(-) diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c index 8bc9f51ae6c2..343afa38f4c2 100644 --- a/drivers/input/mouse/psmouse-base.c +++ b/drivers/input/mouse/psmouse-base.c @@ -485,13 +485,6 @@ static int im_explorer_detect(struct psmouse *psmouse, int set_properties) param[0] = 40; ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); - param[0] = 200; - ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); - param[0] = 200; - ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); - param[0] = 60; - ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); - if (set_properties) { set_bit(BTN_MIDDLE, psmouse->dev->keybit); set_bit(REL_WHEEL, psmouse->dev->relbit); From c712a9de94a5df5bc0087c14ad0b1aac2c147991 Mon Sep 17 00:00:00 2001 From: Alexey Dobriyan Date: Wed, 23 Aug 2006 00:48:33 -0400 Subject: [PATCH 265/488] Input: remove dead URLs from Doclumentation/input/joystick.txt Closes #2804. Signed-off-by: Alexey Dobriyan Signed-off-by: Dmitry Torokhov --- Documentation/input/joystick.txt | 1 - 1 file changed, 1 deletion(-) diff --git a/Documentation/input/joystick.txt b/Documentation/input/joystick.txt index d53b857a3710..841c353297e6 100644 --- a/Documentation/input/joystick.txt +++ b/Documentation/input/joystick.txt @@ -39,7 +39,6 @@ them. Bug reports and success stories are also welcome. The input project website is at: - http://www.suse.cz/development/input/ http://atrey.karlin.mff.cuni.cz/~vojtech/input/ There is also a mailing list for the driver at: From 4c86cd9c59428a40233fb707f5de18caa5ab5cb7 Mon Sep 17 00:00:00 2001 From: Andy Fleming Date: Fri, 18 Aug 2006 18:03:08 -0500 Subject: [PATCH 266/488] [POWERPC] Fix interrupts on 8540 ADS board * Fixed 8540 ADS support for the new irq layer * Fixed 8540 ADS support for mapping PCI interrupts * Updated 8540 ADS to use device tree for interrupt assignment and sense values Signed-off-by: Paul Mackerras --- arch/powerpc/platforms/85xx/mpc85xx_ads.c | 154 +++++++--------------- 1 file changed, 51 insertions(+), 103 deletions(-) diff --git a/arch/powerpc/platforms/85xx/mpc85xx_ads.c b/arch/powerpc/platforms/85xx/mpc85xx_ads.c index 06a497676c99..9d2acfbbeccd 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_ads.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_ads.c @@ -37,79 +37,7 @@ unsigned long isa_io_base = 0; unsigned long isa_mem_base = 0; #endif -/* - * Internal interrupts are all Level Sensitive, and Positive Polarity - * - * Note: Likely, this table and the following function should be - * obtained and derived from the OF Device Tree. - */ -static u_char mpc85xx_ads_openpic_initsenses[] __initdata = { - MPC85XX_INTERNAL_IRQ_SENSES, - 0x0, /* External 0: */ -#if defined(CONFIG_PCI) - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext 1: PCI slot 0 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext 2: PCI slot 1 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext 3: PCI slot 2 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext 4: PCI slot 3 */ -#else - 0x0, /* External 1: */ - 0x0, /* External 2: */ - 0x0, /* External 3: */ - 0x0, /* External 4: */ -#endif - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* External 5: PHY */ - 0x0, /* External 6: */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* External 7: PHY */ - 0x0, /* External 8: */ - 0x0, /* External 9: */ - 0x0, /* External 10: */ - 0x0, /* External 11: */ -}; - #ifdef CONFIG_PCI -/* - * interrupt routing - */ - -int -mpc85xx_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin) -{ - static char pci_irq_table[][4] = - /* - * This is little evil, but works around the fact - * that revA boards have IDSEL starting at 18 - * and others boards (older) start at 12 - * - * PCI IDSEL/INTPIN->INTLINE - * A B C D - */ - { - {PIRQA, PIRQB, PIRQC, PIRQD}, /* IDSEL 2 */ - {PIRQD, PIRQA, PIRQB, PIRQC}, - {PIRQC, PIRQD, PIRQA, PIRQB}, - {PIRQB, PIRQC, PIRQD, PIRQA}, /* IDSEL 5 */ - {0, 0, 0, 0}, /* -- */ - {0, 0, 0, 0}, /* -- */ - {0, 0, 0, 0}, /* -- */ - {0, 0, 0, 0}, /* -- */ - {0, 0, 0, 0}, /* -- */ - {0, 0, 0, 0}, /* -- */ - {PIRQA, PIRQB, PIRQC, PIRQD}, /* IDSEL 12 */ - {PIRQD, PIRQA, PIRQB, PIRQC}, - {PIRQC, PIRQD, PIRQA, PIRQB}, - {PIRQB, PIRQC, PIRQD, PIRQA}, /* IDSEL 15 */ - {0, 0, 0, 0}, /* -- */ - {0, 0, 0, 0}, /* -- */ - {PIRQA, PIRQB, PIRQC, PIRQD}, /* IDSEL 18 */ - {PIRQD, PIRQA, PIRQB, PIRQC}, - {PIRQC, PIRQD, PIRQA, PIRQB}, - {PIRQB, PIRQC, PIRQD, PIRQA}, /* IDSEL 21 */ - }; - - const long min_idsel = 2, max_idsel = 21, irqs_per_slot = 4; - return PCI_IRQ_TABLE_LOOKUP; -} - int mpc85xx_exclude_device(u_char bus, u_char devfn) { @@ -119,44 +47,63 @@ mpc85xx_exclude_device(u_char bus, u_char devfn) return PCIBIOS_SUCCESSFUL; } +void __init +mpc85xx_pcibios_fixup(void) +{ + struct pci_dev *dev = NULL; + + for_each_pci_dev(dev) + pci_read_irq_line(dev); +} #endif /* CONFIG_PCI */ void __init mpc85xx_ads_pic_init(void) { - struct mpic *mpic1; - phys_addr_t OpenPIC_PAddr; + struct mpic *mpic; + struct resource r; + struct device_node *np = NULL; - /* Determine the Physical Address of the OpenPIC regs */ - OpenPIC_PAddr = get_immrbase() + MPC85xx_OPENPIC_OFFSET; + np = of_find_node_by_type(np, "open-pic"); - mpic1 = mpic_alloc(OpenPIC_PAddr, - MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN, - 4, MPC85xx_OPENPIC_IRQ_OFFSET, 0, 250, - mpc85xx_ads_openpic_initsenses, - sizeof(mpc85xx_ads_openpic_initsenses), - " OpenPIC "); - BUG_ON(mpic1 == NULL); - mpic_assign_isu(mpic1, 0, OpenPIC_PAddr + 0x10200); - mpic_assign_isu(mpic1, 1, OpenPIC_PAddr + 0x10280); - mpic_assign_isu(mpic1, 2, OpenPIC_PAddr + 0x10300); - mpic_assign_isu(mpic1, 3, OpenPIC_PAddr + 0x10380); - mpic_assign_isu(mpic1, 4, OpenPIC_PAddr + 0x10400); - mpic_assign_isu(mpic1, 5, OpenPIC_PAddr + 0x10480); - mpic_assign_isu(mpic1, 6, OpenPIC_PAddr + 0x10500); - mpic_assign_isu(mpic1, 7, OpenPIC_PAddr + 0x10580); + if (np == NULL) { + printk(KERN_ERR "Could not find open-pic node\n"); + return; + } - /* dummy mappings to get to 48 */ - mpic_assign_isu(mpic1, 8, OpenPIC_PAddr + 0x10600); - mpic_assign_isu(mpic1, 9, OpenPIC_PAddr + 0x10680); - mpic_assign_isu(mpic1, 10, OpenPIC_PAddr + 0x10700); - mpic_assign_isu(mpic1, 11, OpenPIC_PAddr + 0x10780); + if(of_address_to_resource(np, 0, &r)) { + printk(KERN_ERR "Could not map mpic register space\n"); + of_node_put(np); + return; + } - /* External ints */ - mpic_assign_isu(mpic1, 12, OpenPIC_PAddr + 0x10000); - mpic_assign_isu(mpic1, 13, OpenPIC_PAddr + 0x10080); - mpic_assign_isu(mpic1, 14, OpenPIC_PAddr + 0x10100); - mpic_init(mpic1); + mpic = mpic_alloc(np, r.start, + MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN, + 4, 0, " OpenPIC "); + BUG_ON(mpic == NULL); + of_node_put(np); + + mpic_assign_isu(mpic, 0, r.start + 0x10200); + mpic_assign_isu(mpic, 1, r.start + 0x10280); + mpic_assign_isu(mpic, 2, r.start + 0x10300); + mpic_assign_isu(mpic, 3, r.start + 0x10380); + mpic_assign_isu(mpic, 4, r.start + 0x10400); + mpic_assign_isu(mpic, 5, r.start + 0x10480); + mpic_assign_isu(mpic, 6, r.start + 0x10500); + mpic_assign_isu(mpic, 7, r.start + 0x10580); + + /* Unused on this platform (leave room for 8548) */ + mpic_assign_isu(mpic, 8, r.start + 0x10600); + mpic_assign_isu(mpic, 9, r.start + 0x10680); + mpic_assign_isu(mpic, 10, r.start + 0x10700); + mpic_assign_isu(mpic, 11, r.start + 0x10780); + + /* External Interrupts */ + mpic_assign_isu(mpic, 12, r.start + 0x10000); + mpic_assign_isu(mpic, 13, r.start + 0x10080); + mpic_assign_isu(mpic, 14, r.start + 0x10100); + + mpic_init(mpic); } /* @@ -165,7 +112,9 @@ void __init mpc85xx_ads_pic_init(void) static void __init mpc85xx_ads_setup_arch(void) { struct device_node *cpu; +#ifdef CONFIG_PCI struct device_node *np; +#endif if (ppc_md.progress) ppc_md.progress("mpc85xx_ads_setup_arch()", 0); @@ -186,8 +135,7 @@ static void __init mpc85xx_ads_setup_arch(void) for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;) add_bridge(np); - ppc_md.pci_swizzle = common_swizzle; - ppc_md.pci_map_irq = mpc85xx_map_irq; + ppc_md.pcibios_fixup = mpc85xx_pcibios_fixup; ppc_md.pci_exclude_device = mpc85xx_exclude_device; #endif From ddd64159eb0d090766eee79b191a974ffdd83a42 Mon Sep 17 00:00:00 2001 From: Andy Fleming Date: Thu, 17 Aug 2006 20:24:48 -0500 Subject: [PATCH 267/488] [POWERPC] Fix CDS IRQ handling and PCI code * Fix IRQ support in the 85xx CDS boards so it uses the new generic stuff * Fix PCI IRQ mapping to use the device tree * Disabled i8259 support to allow the CDS to boot. This will be fixed soon, but the current code doesn't even compile, so this is a vast improvement Signed-off-by: Andy Fleming Signed-off-by: Paul Mackerras --- arch/powerpc/platforms/85xx/Kconfig | 1 - arch/powerpc/platforms/85xx/mpc85xx_cds.c | 204 +++++++++------------- 2 files changed, 85 insertions(+), 120 deletions(-) diff --git a/arch/powerpc/platforms/85xx/Kconfig b/arch/powerpc/platforms/85xx/Kconfig index 454fc53289ab..c3268d9877e4 100644 --- a/arch/powerpc/platforms/85xx/Kconfig +++ b/arch/powerpc/platforms/85xx/Kconfig @@ -14,7 +14,6 @@ config MPC8540_ADS config MPC85xx_CDS bool "Freescale MPC85xx CDS" select DEFAULT_UIMAGE - select PPC_I8259 if PCI help This option enables support for the MPC85xx CDS board diff --git a/arch/powerpc/platforms/85xx/mpc85xx_cds.c b/arch/powerpc/platforms/85xx/mpc85xx_cds.c index 18e6e11f7020..1d357d32a29f 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_cds.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_cds.c @@ -57,94 +57,8 @@ unsigned long isa_mem_base = 0; static int cds_pci_slot = 2; static volatile u8 *cadmus; -/* - * Internal interrupts are all Level Sensitive, and Positive Polarity - * - * Note: Likely, this table and the following function should be - * obtained and derived from the OF Device Tree. - */ -static u_char mpc85xx_cds_openpic_initsenses[] __initdata = { - MPC85XX_INTERNAL_IRQ_SENSES, -#if defined(CONFIG_PCI) - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Ext 0: PCI slot 0 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext 1: PCI slot 1 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext 2: PCI slot 2 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext 3: PCI slot 3 */ -#else - 0x0, /* External 0: */ - 0x0, /* External 1: */ - 0x0, /* External 2: */ - 0x0, /* External 3: */ -#endif - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* External 5: PHY */ - 0x0, /* External 6: */ - 0x0, /* External 7: */ - 0x0, /* External 8: */ - 0x0, /* External 9: */ - 0x0, /* External 10: */ -#ifdef CONFIG_PCI - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext 11: PCI2 slot 0 */ -#else - 0x0, /* External 11: */ -#endif -}; - #ifdef CONFIG_PCI -/* - * interrupt routing - */ -int -mpc85xx_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin) -{ - struct pci_controller *hose = pci_bus_to_hose(dev->bus->number); - - if (!hose->index) - { - /* Handle PCI1 interrupts */ - char pci_irq_table[][4] = - /* - * PCI IDSEL/INTPIN->INTLINE - * A B C D - */ - - /* Note IRQ assignment for slots is based on which slot the elysium is - * in -- in this setup elysium is in slot #2 (this PIRQA as first - * interrupt on slot */ - { - { 0, 1, 2, 3 }, /* 16 - PMC */ - { 0, 1, 2, 3 }, /* 17 P2P (Tsi320) */ - { 0, 1, 2, 3 }, /* 18 - Slot 1 */ - { 1, 2, 3, 0 }, /* 19 - Slot 2 */ - { 2, 3, 0, 1 }, /* 20 - Slot 3 */ - { 3, 0, 1, 2 }, /* 21 - Slot 4 */ - }; - - const long min_idsel = 16, max_idsel = 21, irqs_per_slot = 4; - int i, j; - - for (i = 0; i < 6; i++) - for (j = 0; j < 4; j++) - pci_irq_table[i][j] = - ((pci_irq_table[i][j] + 5 - - cds_pci_slot) & 0x3) + PIRQ0A; - - return PCI_IRQ_TABLE_LOOKUP; - } else { - /* Handle PCI2 interrupts (if we have one) */ - char pci_irq_table[][4] = - { - /* - * We only have one slot and one interrupt - * going to PIRQA - PIRQD */ - { PIRQ1A, PIRQ1A, PIRQ1A, PIRQ1A }, /* 21 - slot 0 */ - }; - - const long min_idsel = 21, max_idsel = 21, irqs_per_slot = 4; - - return PCI_IRQ_TABLE_LOOKUP; - } -} #define ARCADIA_HOST_BRIDGE_IDSEL 17 #define ARCADIA_2ND_BRIDGE_IDSEL 3 @@ -210,50 +124,104 @@ mpc85xx_cds_pcibios_fixup(void) pci_write_config_byte(dev, PCI_INTERRUPT_LINE, 11); pci_dev_put(dev); } + + /* Now map all the PCI irqs */ + dev = NULL; + for_each_pci_dev(dev) + pci_read_irq_line(dev); } + +#ifdef CONFIG_PPC_I8259 +#warning The i8259 PIC support is currently broken +static void mpc85xx_8259_cascade(unsigned int irq, struct + irq_desc *desc, struct pt_regs *regs) +{ + unsigned int cascade_irq = i8259_irq(regs); + + if (cascade_irq != NO_IRQ) + generic_handle_irq(cascade_irq, regs); + + desc->chip->eoi(irq); +} +#endif /* PPC_I8259 */ #endif /* CONFIG_PCI */ void __init mpc85xx_cds_pic_init(void) { - struct mpic *mpic1; - phys_addr_t OpenPIC_PAddr; + struct mpic *mpic; + struct resource r; + struct device_node *np = NULL; + struct device_node *cascade_node = NULL; + int cascade_irq; - /* Determine the Physical Address of the OpenPIC regs */ - OpenPIC_PAddr = get_immrbase() + MPC85xx_OPENPIC_OFFSET; + np = of_find_node_by_type(np, "open-pic"); - mpic1 = mpic_alloc(OpenPIC_PAddr, + if (np == NULL) { + printk(KERN_ERR "Could not find open-pic node\n"); + return; + } + + if (of_address_to_resource(np, 0, &r)) { + printk(KERN_ERR "Failed to map mpic register space\n"); + of_node_put(np); + return; + } + + mpic = mpic_alloc(np, r.start, MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN, - 4, MPC85xx_OPENPIC_IRQ_OFFSET, 0, 250, - mpc85xx_cds_openpic_initsenses, - sizeof(mpc85xx_cds_openpic_initsenses), " OpenPIC "); - BUG_ON(mpic1 == NULL); - mpic_assign_isu(mpic1, 0, OpenPIC_PAddr + 0x10200); - mpic_assign_isu(mpic1, 1, OpenPIC_PAddr + 0x10280); - mpic_assign_isu(mpic1, 2, OpenPIC_PAddr + 0x10300); - mpic_assign_isu(mpic1, 3, OpenPIC_PAddr + 0x10380); - mpic_assign_isu(mpic1, 4, OpenPIC_PAddr + 0x10400); - mpic_assign_isu(mpic1, 5, OpenPIC_PAddr + 0x10480); - mpic_assign_isu(mpic1, 6, OpenPIC_PAddr + 0x10500); - mpic_assign_isu(mpic1, 7, OpenPIC_PAddr + 0x10580); + 4, 0, " OpenPIC "); + BUG_ON(mpic == NULL); - /* dummy mappings to get to 48 */ - mpic_assign_isu(mpic1, 8, OpenPIC_PAddr + 0x10600); - mpic_assign_isu(mpic1, 9, OpenPIC_PAddr + 0x10680); - mpic_assign_isu(mpic1, 10, OpenPIC_PAddr + 0x10700); - mpic_assign_isu(mpic1, 11, OpenPIC_PAddr + 0x10780); + /* Return the mpic node */ + of_node_put(np); - /* External ints */ - mpic_assign_isu(mpic1, 12, OpenPIC_PAddr + 0x10000); - mpic_assign_isu(mpic1, 13, OpenPIC_PAddr + 0x10080); - mpic_assign_isu(mpic1, 14, OpenPIC_PAddr + 0x10100); + mpic_assign_isu(mpic, 0, r.start + 0x10200); + mpic_assign_isu(mpic, 1, r.start + 0x10280); + mpic_assign_isu(mpic, 2, r.start + 0x10300); + mpic_assign_isu(mpic, 3, r.start + 0x10380); + mpic_assign_isu(mpic, 4, r.start + 0x10400); + mpic_assign_isu(mpic, 5, r.start + 0x10480); + mpic_assign_isu(mpic, 6, r.start + 0x10500); + mpic_assign_isu(mpic, 7, r.start + 0x10580); - mpic_init(mpic1); + /* Used only for 8548 so far, but no harm in + * allocating them for everyone */ + mpic_assign_isu(mpic, 8, r.start + 0x10600); + mpic_assign_isu(mpic, 9, r.start + 0x10680); + mpic_assign_isu(mpic, 10, r.start + 0x10700); + mpic_assign_isu(mpic, 11, r.start + 0x10780); -#ifdef CONFIG_PCI - mpic_setup_cascade(PIRQ0A, i8259_irq_cascade, NULL); + /* External Interrupts */ + mpic_assign_isu(mpic, 12, r.start + 0x10000); + mpic_assign_isu(mpic, 13, r.start + 0x10080); + mpic_assign_isu(mpic, 14, r.start + 0x10100); - i8259_init(0,0); -#endif + mpic_init(mpic); + +#ifdef CONFIG_PPC_I8259 + /* Initialize the i8259 controller */ + for_each_node_by_type(np, "interrupt-controller") + if (device_is_compatible(np, "chrp,iic")) { + cascade_node = np; + break; + } + + if (cascade_node == NULL) { + printk(KERN_DEBUG "Could not find i8259 PIC\n"); + return; + } + + cascade_irq = irq_of_parse_and_map(cascade_node, 0); + if (cascade_irq == NO_IRQ) { + printk(KERN_ERR "Failed to map cascade interrupt\n"); + return; + } + + i8259_init(cascade_node, 0); + of_node_put(cascade_node); + + set_irq_chained_handler(cascade_irq, mpc85xx_8259_cascade); +#endif /* CONFIG_PPC_I8259 */ } @@ -298,8 +266,6 @@ mpc85xx_cds_setup_arch(void) add_bridge(np); ppc_md.pcibios_fixup = mpc85xx_cds_pcibios_fixup; - ppc_md.pci_swizzle = common_swizzle; - ppc_md.pci_map_irq = mpc85xx_map_irq; ppc_md.pci_exclude_device = mpc85xx_exclude_device; #endif From 2654d6385f6cad00cfb8f5087aeb10d0ed781e74 Mon Sep 17 00:00:00 2001 From: Andy Fleming Date: Fri, 18 Aug 2006 18:04:34 -0500 Subject: [PATCH 268/488] [POWERPC] Add 85xx DTS files to powerpc Added the mpc85xx family of dts files to the powerpc tree Signed-off-by: Paul Mackerras --- arch/powerpc/boot/dts/mpc8540ads.dts | 257 ++++++++++++++++++++++++ arch/powerpc/boot/dts/mpc8541cds.dts | 244 +++++++++++++++++++++++ arch/powerpc/boot/dts/mpc8548cds.dts | 287 +++++++++++++++++++++++++++ arch/powerpc/boot/dts/mpc8555cds.dts | 244 +++++++++++++++++++++++ 4 files changed, 1032 insertions(+) create mode 100644 arch/powerpc/boot/dts/mpc8540ads.dts create mode 100644 arch/powerpc/boot/dts/mpc8541cds.dts create mode 100644 arch/powerpc/boot/dts/mpc8548cds.dts create mode 100644 arch/powerpc/boot/dts/mpc8555cds.dts diff --git a/arch/powerpc/boot/dts/mpc8540ads.dts b/arch/powerpc/boot/dts/mpc8540ads.dts new file mode 100644 index 000000000000..93d2c2de6566 --- /dev/null +++ b/arch/powerpc/boot/dts/mpc8540ads.dts @@ -0,0 +1,257 @@ +/* + * MPC8540 ADS Device Tree Source + * + * Copyright 2006 Freescale Semiconductor Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + + +/ { + model = "MPC8540ADS"; + compatible = "MPC85xxADS"; + #address-cells = <1>; + #size-cells = <1>; + linux,phandle = <100>; + + cpus { + #cpus = <1>; + #address-cells = <1>; + #size-cells = <0>; + linux,phandle = <200>; + + PowerPC,8540@0 { + device_type = "cpu"; + reg = <0>; + d-cache-line-size = <20>; // 32 bytes + i-cache-line-size = <20>; // 32 bytes + d-cache-size = <8000>; // L1, 32K + i-cache-size = <8000>; // L1, 32K + timebase-frequency = <0>; // 33 MHz, from uboot + bus-frequency = <0>; // 166 MHz + clock-frequency = <0>; // 825 MHz, from uboot + 32-bit; + linux,phandle = <201>; + }; + }; + + memory { + device_type = "memory"; + linux,phandle = <300>; + reg = <00000000 08000000>; // 128M at 0x0 + }; + + soc8540@e0000000 { + #address-cells = <1>; + #size-cells = <1>; + #interrupt-cells = <2>; + device_type = "soc"; + ranges = <0 e0000000 00100000>; + reg = ; // CCSRBAR 1M + bus-frequency = <0>; + + i2c@3000 { + device_type = "i2c"; + compatible = "fsl-i2c"; + reg = <3000 100>; + interrupts = <1b 2>; + interrupt-parent = <40000>; + dfsrr; + }; + + mdio@24520 { + #address-cells = <1>; + #size-cells = <0>; + device_type = "mdio"; + compatible = "gianfar"; + reg = <24520 20>; + linux,phandle = <24520>; + ethernet-phy@0 { + linux,phandle = <2452000>; + interrupt-parent = <40000>; + interrupts = <35 1>; + reg = <0>; + device_type = "ethernet-phy"; + }; + ethernet-phy@1 { + linux,phandle = <2452001>; + interrupt-parent = <40000>; + interrupts = <35 1>; + reg = <1>; + device_type = "ethernet-phy"; + }; + ethernet-phy@2 { + linux,phandle = <2452002>; + interrupt-parent = <40000>; + interrupts = <37 1>; + reg = <2>; + device_type = "ethernet-phy"; + }; + }; + + ethernet@24000 { + #address-cells = <1>; + #size-cells = <0>; + device_type = "network"; + model = "TSEC"; + compatible = "gianfar"; + reg = <24000 1000>; + address = [ 00 E0 0C 00 73 00 ]; + local-mac-address = [ 00 E0 0C 00 73 00 ]; + interrupts = ; + interrupt-parent = <40000>; + phy-handle = <2452000>; + }; + + ethernet@25000 { + #address-cells = <1>; + #size-cells = <0>; + device_type = "network"; + model = "TSEC"; + compatible = "gianfar"; + reg = <25000 1000>; + address = [ 00 E0 0C 00 73 01 ]; + local-mac-address = [ 00 E0 0C 00 73 01 ]; + interrupts = <13 2 14 2 18 2>; + interrupt-parent = <40000>; + phy-handle = <2452001>; + }; + + ethernet@26000 { + #address-cells = <1>; + #size-cells = <0>; + device_type = "network"; + model = "TSEC"; + compatible = "gianfar"; + reg = <26000 1000>; + address = [ 00 E0 0C 00 73 02 ]; + local-mac-address = [ 00 E0 0C 00 73 02 ]; + interrupts = <19 2>; + interrupt-parent = <40000>; + phy-handle = <2452002>; + }; + + serial@4500 { + device_type = "serial"; + compatible = "ns16550"; + reg = <4500 100>; // reg base, size + clock-frequency = <0>; // should we fill in in uboot? + interrupts = <1a 2>; + interrupt-parent = <40000>; + }; + + serial@4600 { + device_type = "serial"; + compatible = "ns16550"; + reg = <4600 100>; // reg base, size + clock-frequency = <0>; // should we fill in in uboot? + interrupts = <1a 2>; + interrupt-parent = <40000>; + }; + pci@8000 { + linux,phandle = <8000>; + interrupt-map-mask = ; + interrupt-map = < + + /* IDSEL 0x02 */ + 1000 0 0 1 40000 31 1 + 1000 0 0 2 40000 32 1 + 1000 0 0 3 40000 33 1 + 1000 0 0 4 40000 34 1 + + /* IDSEL 0x03 */ + 1800 0 0 1 40000 34 1 + 1800 0 0 2 40000 31 1 + 1800 0 0 3 40000 32 1 + 1800 0 0 4 40000 33 1 + + /* IDSEL 0x04 */ + 2000 0 0 1 40000 33 1 + 2000 0 0 2 40000 34 1 + 2000 0 0 3 40000 31 1 + 2000 0 0 4 40000 32 1 + + /* IDSEL 0x05 */ + 2800 0 0 1 40000 32 1 + 2800 0 0 2 40000 33 1 + 2800 0 0 3 40000 34 1 + 2800 0 0 4 40000 31 1 + + /* IDSEL 0x0c */ + 6000 0 0 1 40000 31 1 + 6000 0 0 2 40000 32 1 + 6000 0 0 3 40000 33 1 + 6000 0 0 4 40000 34 1 + + /* IDSEL 0x0d */ + 6800 0 0 1 40000 34 1 + 6800 0 0 2 40000 31 1 + 6800 0 0 3 40000 32 1 + 6800 0 0 4 40000 33 1 + + /* IDSEL 0x0e */ + 7000 0 0 1 40000 33 1 + 7000 0 0 2 40000 34 1 + 7000 0 0 3 40000 31 1 + 7000 0 0 4 40000 32 1 + + /* IDSEL 0x0f */ + 7800 0 0 1 40000 32 1 + 7800 0 0 2 40000 33 1 + 7800 0 0 3 40000 34 1 + 7800 0 0 4 40000 31 1 + + /* IDSEL 0x12 */ + 9000 0 0 1 40000 31 1 + 9000 0 0 2 40000 32 1 + 9000 0 0 3 40000 33 1 + 9000 0 0 4 40000 34 1 + + /* IDSEL 0x13 */ + 9800 0 0 1 40000 34 1 + 9800 0 0 2 40000 31 1 + 9800 0 0 3 40000 32 1 + 9800 0 0 4 40000 33 1 + + /* IDSEL 0x14 */ + a000 0 0 1 40000 33 1 + a000 0 0 2 40000 34 1 + a000 0 0 3 40000 31 1 + a000 0 0 4 40000 32 1 + + /* IDSEL 0x15 */ + a800 0 0 1 40000 32 1 + a800 0 0 2 40000 33 1 + a800 0 0 3 40000 34 1 + a800 0 0 4 40000 31 1>; + interrupt-parent = <40000>; + interrupts = <08 2>; + bus-range = <0 0>; + ranges = <02000000 0 80000000 80000000 0 20000000 + 01000000 0 00000000 e2000000 0 00100000>; + clock-frequency = <3f940aa>; + #interrupt-cells = <1>; + #size-cells = <2>; + #address-cells = <3>; + reg = <8000 1000>; + compatible = "85xx"; + device_type = "pci"; + }; + + pic@40000 { + linux,phandle = <40000>; + clock-frequency = <0>; + interrupt-controller; + #address-cells = <0>; + #interrupt-cells = <2>; + reg = <40000 40000>; + built-in; + compatible = "chrp,open-pic"; + device_type = "open-pic"; + big-endian; + }; + }; +}; diff --git a/arch/powerpc/boot/dts/mpc8541cds.dts b/arch/powerpc/boot/dts/mpc8541cds.dts new file mode 100644 index 000000000000..7be0bc659e1c --- /dev/null +++ b/arch/powerpc/boot/dts/mpc8541cds.dts @@ -0,0 +1,244 @@ +/* + * MPC8541 CDS Device Tree Source + * + * Copyright 2006 Freescale Semiconductor Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + + +/ { + model = "MPC8541CDS"; + compatible = "MPC85xxCDS"; + #address-cells = <1>; + #size-cells = <1>; + linux,phandle = <100>; + + cpus { + #cpus = <1>; + #address-cells = <1>; + #size-cells = <0>; + linux,phandle = <200>; + + PowerPC,8541@0 { + device_type = "cpu"; + reg = <0>; + d-cache-line-size = <20>; // 32 bytes + i-cache-line-size = <20>; // 32 bytes + d-cache-size = <8000>; // L1, 32K + i-cache-size = <8000>; // L1, 32K + timebase-frequency = <0>; // 33 MHz, from uboot + bus-frequency = <0>; // 166 MHz + clock-frequency = <0>; // 825 MHz, from uboot + 32-bit; + linux,phandle = <201>; + }; + }; + + memory { + device_type = "memory"; + linux,phandle = <300>; + reg = <00000000 08000000>; // 128M at 0x0 + }; + + soc8541@e0000000 { + #address-cells = <1>; + #size-cells = <1>; + #interrupt-cells = <2>; + device_type = "soc"; + ranges = <0 e0000000 00100000>; + reg = ; // CCSRBAR 1M + bus-frequency = <0>; + + i2c@3000 { + device_type = "i2c"; + compatible = "fsl-i2c"; + reg = <3000 100>; + interrupts = <1b 2>; + interrupt-parent = <40000>; + dfsrr; + }; + + mdio@24520 { + #address-cells = <1>; + #size-cells = <0>; + device_type = "mdio"; + compatible = "gianfar"; + reg = <24520 20>; + linux,phandle = <24520>; + ethernet-phy@0 { + linux,phandle = <2452000>; + interrupt-parent = <40000>; + interrupts = <35 0>; + reg = <0>; + device_type = "ethernet-phy"; + }; + ethernet-phy@1 { + linux,phandle = <2452001>; + interrupt-parent = <40000>; + interrupts = <35 0>; + reg = <1>; + device_type = "ethernet-phy"; + }; + }; + + ethernet@24000 { + #address-cells = <1>; + #size-cells = <0>; + device_type = "network"; + model = "TSEC"; + compatible = "gianfar"; + reg = <24000 1000>; + local-mac-address = [ 00 E0 0C 00 73 00 ]; + interrupts = ; + interrupt-parent = <40000>; + phy-handle = <2452000>; + }; + + ethernet@25000 { + #address-cells = <1>; + #size-cells = <0>; + device_type = "network"; + model = "TSEC"; + compatible = "gianfar"; + reg = <25000 1000>; + local-mac-address = [ 00 E0 0C 00 73 01 ]; + interrupts = <13 2 14 2 18 2>; + interrupt-parent = <40000>; + phy-handle = <2452001>; + }; + + serial@4500 { + device_type = "serial"; + compatible = "ns16550"; + reg = <4500 100>; // reg base, size + clock-frequency = <0>; // should we fill in in uboot? + interrupts = <1a 2>; + interrupt-parent = <40000>; + }; + + serial@4600 { + device_type = "serial"; + compatible = "ns16550"; + reg = <4600 100>; // reg base, size + clock-frequency = <0>; // should we fill in in uboot? + interrupts = <1a 2>; + interrupt-parent = <40000>; + }; + + pci@8000 { + linux,phandle = <8000>; + interrupt-map-mask = <1f800 0 0 7>; + interrupt-map = < + + /* IDSEL 0x10 */ + 08000 0 0 1 40000 30 1 + 08000 0 0 2 40000 31 1 + 08000 0 0 3 40000 32 1 + 08000 0 0 4 40000 33 1 + + /* IDSEL 0x11 */ + 08800 0 0 1 40000 30 1 + 08800 0 0 2 40000 31 1 + 08800 0 0 3 40000 32 1 + 08800 0 0 4 40000 33 1 + + /* IDSEL 0x12 (Slot 1) */ + 09000 0 0 1 40000 30 1 + 09000 0 0 2 40000 31 1 + 09000 0 0 3 40000 32 1 + 09000 0 0 4 40000 33 1 + + /* IDSEL 0x13 (Slot 2) */ + 09800 0 0 1 40000 31 1 + 09800 0 0 2 40000 32 1 + 09800 0 0 3 40000 33 1 + 09800 0 0 4 40000 30 1 + + /* IDSEL 0x14 (Slot 3) */ + 0a000 0 0 1 40000 32 1 + 0a000 0 0 2 40000 33 1 + 0a000 0 0 3 40000 30 1 + 0a000 0 0 4 40000 31 1 + + /* IDSEL 0x15 (Slot 4) */ + 0a800 0 0 1 40000 33 1 + 0a800 0 0 2 40000 30 1 + 0a800 0 0 3 40000 31 1 + 0a800 0 0 4 40000 32 1 + + /* Bus 1 (Tundra Bridge) */ + /* IDSEL 0x12 (ISA bridge) */ + 19000 0 0 1 40000 30 1 + 19000 0 0 2 40000 31 1 + 19000 0 0 3 40000 32 1 + 19000 0 0 4 40000 33 1>; + interrupt-parent = <40000>; + interrupts = <08 2>; + bus-range = <0 0>; + ranges = <02000000 0 80000000 80000000 0 20000000 + 01000000 0 00000000 e2000000 0 00100000>; + clock-frequency = <3f940aa>; + #interrupt-cells = <1>; + #size-cells = <2>; + #address-cells = <3>; + reg = <8000 1000>; + compatible = "85xx"; + device_type = "pci"; + + i8259@19000 { + clock-frequency = <0>; + interrupt-controller; + device_type = "interrupt-controller"; + reg = <19000 0 0 0 1>; + #address-cells = <0>; + #interrupt-cells = <2>; + built-in; + compatible = "chrp,iic"; + big-endian; + interrupts = <1>; + interrupt-parent = <8000>; + }; + }; + + pci@9000 { + linux,phandle = <9000>; + interrupt-map-mask = ; + interrupt-map = < + + /* IDSEL 0x15 */ + a800 0 0 1 40000 3b 1 + a800 0 0 2 40000 3b 1 + a800 0 0 3 40000 3b 1 + a800 0 0 4 40000 3b 1>; + interrupt-parent = <40000>; + interrupts = <09 2>; + bus-range = <0 0>; + ranges = <02000000 0 a0000000 a0000000 0 20000000 + 01000000 0 00000000 e3000000 0 00100000>; + clock-frequency = <3f940aa>; + #interrupt-cells = <1>; + #size-cells = <2>; + #address-cells = <3>; + reg = <9000 1000>; + compatible = "85xx"; + device_type = "pci"; + }; + + pic@40000 { + linux,phandle = <40000>; + clock-frequency = <0>; + interrupt-controller; + #address-cells = <0>; + #interrupt-cells = <2>; + reg = <40000 40000>; + built-in; + compatible = "chrp,open-pic"; + device_type = "open-pic"; + big-endian; + }; + }; +}; diff --git a/arch/powerpc/boot/dts/mpc8548cds.dts b/arch/powerpc/boot/dts/mpc8548cds.dts new file mode 100644 index 000000000000..893d7957c174 --- /dev/null +++ b/arch/powerpc/boot/dts/mpc8548cds.dts @@ -0,0 +1,287 @@ +/* + * MPC8555 CDS Device Tree Source + * + * Copyright 2006 Freescale Semiconductor Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + + +/ { + model = "MPC8548CDS"; + compatible = "MPC85xxCDS"; + #address-cells = <1>; + #size-cells = <1>; + linux,phandle = <100>; + + cpus { + #cpus = <1>; + #address-cells = <1>; + #size-cells = <0>; + linux,phandle = <200>; + + PowerPC,8548@0 { + device_type = "cpu"; + reg = <0>; + d-cache-line-size = <20>; // 32 bytes + i-cache-line-size = <20>; // 32 bytes + d-cache-size = <8000>; // L1, 32K + i-cache-size = <8000>; // L1, 32K + timebase-frequency = <0>; // 33 MHz, from uboot + bus-frequency = <0>; // 166 MHz + clock-frequency = <0>; // 825 MHz, from uboot + 32-bit; + linux,phandle = <201>; + }; + }; + + memory { + device_type = "memory"; + linux,phandle = <300>; + reg = <00000000 08000000>; // 128M at 0x0 + }; + + soc8548@e0000000 { + #address-cells = <1>; + #size-cells = <1>; + #interrupt-cells = <2>; + device_type = "soc"; + ranges = <0 e0000000 00100000>; + reg = ; // CCSRBAR 1M + bus-frequency = <0>; + + i2c@3000 { + device_type = "i2c"; + compatible = "fsl-i2c"; + reg = <3000 100>; + interrupts = <1b 2>; + interrupt-parent = <40000>; + dfsrr; + }; + + mdio@24520 { + #address-cells = <1>; + #size-cells = <0>; + device_type = "mdio"; + compatible = "gianfar"; + reg = <24520 20>; + linux,phandle = <24520>; + ethernet-phy@0 { + linux,phandle = <2452000>; + interrupt-parent = <40000>; + interrupts = <35 0>; + reg = <0>; + device_type = "ethernet-phy"; + }; + ethernet-phy@1 { + linux,phandle = <2452001>; + interrupt-parent = <40000>; + interrupts = <35 0>; + reg = <1>; + device_type = "ethernet-phy"; + }; + + ethernet-phy@2 { + linux,phandle = <2452002>; + interrupt-parent = <40000>; + interrupts = <35 0>; + reg = <2>; + device_type = "ethernet-phy"; + }; + ethernet-phy@3 { + linux,phandle = <2452003>; + interrupt-parent = <40000>; + interrupts = <35 0>; + reg = <3>; + device_type = "ethernet-phy"; + }; + }; + + ethernet@24000 { + #address-cells = <1>; + #size-cells = <0>; + device_type = "network"; + model = "eTSEC"; + compatible = "gianfar"; + reg = <24000 1000>; + local-mac-address = [ 00 E0 0C 00 73 00 ]; + interrupts = ; + interrupt-parent = <40000>; + phy-handle = <2452000>; + }; + + ethernet@25000 { + #address-cells = <1>; + #size-cells = <0>; + device_type = "network"; + model = "eTSEC"; + compatible = "gianfar"; + reg = <25000 1000>; + local-mac-address = [ 00 E0 0C 00 73 01 ]; + interrupts = <13 2 14 2 18 2>; + interrupt-parent = <40000>; + phy-handle = <2452001>; + }; + + ethernet@26000 { + #address-cells = <1>; + #size-cells = <0>; + device_type = "network"; + model = "eTSEC"; + compatible = "gianfar"; + reg = <26000 1000>; + local-mac-address = [ 00 E0 0C 00 73 02 ]; + interrupts = ; + interrupt-parent = <40000>; + phy-handle = <2452001>; + }; + +/* eTSEC 4 is currently broken + ethernet@27000 { + #address-cells = <1>; + #size-cells = <0>; + device_type = "network"; + model = "eTSEC"; + compatible = "gianfar"; + reg = <27000 1000>; + local-mac-address = [ 00 E0 0C 00 73 03 ]; + interrupts = <15 2 16 2 17 2>; + interrupt-parent = <40000>; + phy-handle = <2452001>; + }; + */ + + serial@4500 { + device_type = "serial"; + compatible = "ns16550"; + reg = <4500 100>; // reg base, size + clock-frequency = <0>; // should we fill in in uboot? + interrupts = <1a 2>; + interrupt-parent = <40000>; + }; + + serial@4600 { + device_type = "serial"; + compatible = "ns16550"; + reg = <4600 100>; // reg base, size + clock-frequency = <0>; // should we fill in in uboot? + interrupts = <1a 2>; + interrupt-parent = <40000>; + }; + + pci@8000 { + linux,phandle = <8000>; + interrupt-map-mask = <1f800 0 0 7>; + interrupt-map = < + + /* IDSEL 0x10 */ + 08000 0 0 1 40000 30 1 + 08000 0 0 2 40000 31 1 + 08000 0 0 3 40000 32 1 + 08000 0 0 4 40000 33 1 + + /* IDSEL 0x11 */ + 08800 0 0 1 40000 30 1 + 08800 0 0 2 40000 31 1 + 08800 0 0 3 40000 32 1 + 08800 0 0 4 40000 33 1 + + /* IDSEL 0x12 (Slot 1) */ + 09000 0 0 1 40000 30 1 + 09000 0 0 2 40000 31 1 + 09000 0 0 3 40000 32 1 + 09000 0 0 4 40000 33 1 + + /* IDSEL 0x13 (Slot 2) */ + 09800 0 0 1 40000 31 1 + 09800 0 0 2 40000 32 1 + 09800 0 0 3 40000 33 1 + 09800 0 0 4 40000 30 1 + + /* IDSEL 0x14 (Slot 3) */ + 0a000 0 0 1 40000 32 1 + 0a000 0 0 2 40000 33 1 + 0a000 0 0 3 40000 30 1 + 0a000 0 0 4 40000 31 1 + + /* IDSEL 0x15 (Slot 4) */ + 0a800 0 0 1 40000 33 1 + 0a800 0 0 2 40000 30 1 + 0a800 0 0 3 40000 31 1 + 0a800 0 0 4 40000 32 1 + + /* Bus 1 (Tundra Bridge) */ + /* IDSEL 0x12 (ISA bridge) */ + 19000 0 0 1 40000 30 1 + 19000 0 0 2 40000 31 1 + 19000 0 0 3 40000 32 1 + 19000 0 0 4 40000 33 1>; + interrupt-parent = <40000>; + interrupts = <08 2>; + bus-range = <0 0>; + ranges = <02000000 0 80000000 80000000 0 20000000 + 01000000 0 00000000 e2000000 0 00100000>; + clock-frequency = <3f940aa>; + #interrupt-cells = <1>; + #size-cells = <2>; + #address-cells = <3>; + reg = <8000 1000>; + compatible = "85xx"; + device_type = "pci"; + + i8259@19000 { + clock-frequency = <0>; + interrupt-controller; + device_type = "interrupt-controller"; + reg = <19000 0 0 0 1>; + #address-cells = <0>; + #interrupt-cells = <2>; + built-in; + compatible = "chrp,iic"; + big-endian; + interrupts = <1>; + interrupt-parent = <8000>; + }; + }; + + pci@9000 { + linux,phandle = <9000>; + interrupt-map-mask = ; + interrupt-map = < + + /* IDSEL 0x15 */ + a800 0 0 1 40000 3b 1 + a800 0 0 2 40000 3b 1 + a800 0 0 3 40000 3b 1 + a800 0 0 4 40000 3b 1>; + interrupt-parent = <40000>; + interrupts = <09 2>; + bus-range = <0 0>; + ranges = <02000000 0 a0000000 a0000000 0 20000000 + 01000000 0 00000000 e3000000 0 00100000>; + clock-frequency = <3f940aa>; + #interrupt-cells = <1>; + #size-cells = <2>; + #address-cells = <3>; + reg = <9000 1000>; + compatible = "85xx"; + device_type = "pci"; + }; + + pic@40000 { + linux,phandle = <40000>; + clock-frequency = <0>; + interrupt-controller; + #address-cells = <0>; + #interrupt-cells = <2>; + reg = <40000 40000>; + built-in; + compatible = "chrp,open-pic"; + device_type = "open-pic"; + big-endian; + }; + }; +}; diff --git a/arch/powerpc/boot/dts/mpc8555cds.dts b/arch/powerpc/boot/dts/mpc8555cds.dts new file mode 100644 index 000000000000..118f5a887651 --- /dev/null +++ b/arch/powerpc/boot/dts/mpc8555cds.dts @@ -0,0 +1,244 @@ +/* + * MPC8555 CDS Device Tree Source + * + * Copyright 2006 Freescale Semiconductor Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + + +/ { + model = "MPC8555CDS"; + compatible = "MPC85xxCDS"; + #address-cells = <1>; + #size-cells = <1>; + linux,phandle = <100>; + + cpus { + #cpus = <1>; + #address-cells = <1>; + #size-cells = <0>; + linux,phandle = <200>; + + PowerPC,8555@0 { + device_type = "cpu"; + reg = <0>; + d-cache-line-size = <20>; // 32 bytes + i-cache-line-size = <20>; // 32 bytes + d-cache-size = <8000>; // L1, 32K + i-cache-size = <8000>; // L1, 32K + timebase-frequency = <0>; // 33 MHz, from uboot + bus-frequency = <0>; // 166 MHz + clock-frequency = <0>; // 825 MHz, from uboot + 32-bit; + linux,phandle = <201>; + }; + }; + + memory { + device_type = "memory"; + linux,phandle = <300>; + reg = <00000000 08000000>; // 128M at 0x0 + }; + + soc8555@e0000000 { + #address-cells = <1>; + #size-cells = <1>; + #interrupt-cells = <2>; + device_type = "soc"; + ranges = <0 e0000000 00100000>; + reg = ; // CCSRBAR 1M + bus-frequency = <0>; + + i2c@3000 { + device_type = "i2c"; + compatible = "fsl-i2c"; + reg = <3000 100>; + interrupts = <1b 2>; + interrupt-parent = <40000>; + dfsrr; + }; + + mdio@24520 { + #address-cells = <1>; + #size-cells = <0>; + device_type = "mdio"; + compatible = "gianfar"; + reg = <24520 20>; + linux,phandle = <24520>; + ethernet-phy@0 { + linux,phandle = <2452000>; + interrupt-parent = <40000>; + interrupts = <35 0>; + reg = <0>; + device_type = "ethernet-phy"; + }; + ethernet-phy@1 { + linux,phandle = <2452001>; + interrupt-parent = <40000>; + interrupts = <35 0>; + reg = <1>; + device_type = "ethernet-phy"; + }; + }; + + ethernet@24000 { + #address-cells = <1>; + #size-cells = <0>; + device_type = "network"; + model = "TSEC"; + compatible = "gianfar"; + reg = <24000 1000>; + local-mac-address = [ 00 E0 0C 00 73 00 ]; + interrupts = <0d 2 0e 2 12 2>; + interrupt-parent = <40000>; + phy-handle = <2452000>; + }; + + ethernet@25000 { + #address-cells = <1>; + #size-cells = <0>; + device_type = "network"; + model = "TSEC"; + compatible = "gianfar"; + reg = <25000 1000>; + local-mac-address = [ 00 E0 0C 00 73 01 ]; + interrupts = <13 2 14 2 18 2>; + interrupt-parent = <40000>; + phy-handle = <2452001>; + }; + + serial@4500 { + device_type = "serial"; + compatible = "ns16550"; + reg = <4500 100>; // reg base, size + clock-frequency = <0>; // should we fill in in uboot? + interrupts = <1a 2>; + interrupt-parent = <40000>; + }; + + serial@4600 { + device_type = "serial"; + compatible = "ns16550"; + reg = <4600 100>; // reg base, size + clock-frequency = <0>; // should we fill in in uboot? + interrupts = <1a 2>; + interrupt-parent = <40000>; + }; + + pci@8000 { + linux,phandle = <8000>; + interrupt-map-mask = <1f800 0 0 7>; + interrupt-map = < + + /* IDSEL 0x10 */ + 08000 0 0 1 40000 30 1 + 08000 0 0 2 40000 31 1 + 08000 0 0 3 40000 32 1 + 08000 0 0 4 40000 33 1 + + /* IDSEL 0x11 */ + 08800 0 0 1 40000 30 1 + 08800 0 0 2 40000 31 1 + 08800 0 0 3 40000 32 1 + 08800 0 0 4 40000 33 1 + + /* IDSEL 0x12 (Slot 1) */ + 09000 0 0 1 40000 30 1 + 09000 0 0 2 40000 31 1 + 09000 0 0 3 40000 32 1 + 09000 0 0 4 40000 33 1 + + /* IDSEL 0x13 (Slot 2) */ + 09800 0 0 1 40000 31 1 + 09800 0 0 2 40000 32 1 + 09800 0 0 3 40000 33 1 + 09800 0 0 4 40000 30 1 + + /* IDSEL 0x14 (Slot 3) */ + 0a000 0 0 1 40000 32 1 + 0a000 0 0 2 40000 33 1 + 0a000 0 0 3 40000 30 1 + 0a000 0 0 4 40000 31 1 + + /* IDSEL 0x15 (Slot 4) */ + 0a800 0 0 1 40000 33 1 + 0a800 0 0 2 40000 30 1 + 0a800 0 0 3 40000 31 1 + 0a800 0 0 4 40000 32 1 + + /* Bus 1 (Tundra Bridge) */ + /* IDSEL 0x12 (ISA bridge) */ + 19000 0 0 1 40000 30 1 + 19000 0 0 2 40000 31 1 + 19000 0 0 3 40000 32 1 + 19000 0 0 4 40000 33 1>; + interrupt-parent = <40000>; + interrupts = <08 2>; + bus-range = <0 0>; + ranges = <02000000 0 80000000 80000000 0 20000000 + 01000000 0 00000000 e2000000 0 00100000>; + clock-frequency = <3f940aa>; + #interrupt-cells = <1>; + #size-cells = <2>; + #address-cells = <3>; + reg = <8000 1000>; + compatible = "85xx"; + device_type = "pci"; + + i8259@19000 { + clock-frequency = <0>; + interrupt-controller; + device_type = "interrupt-controller"; + reg = <19000 0 0 0 1>; + #address-cells = <0>; + #interrupt-cells = <2>; + built-in; + compatible = "chrp,iic"; + big-endian; + interrupts = <1>; + interrupt-parent = <8000>; + }; + }; + + pci@9000 { + linux,phandle = <9000>; + interrupt-map-mask = ; + interrupt-map = < + + /* IDSEL 0x15 */ + a800 0 0 1 40000 3b 1 + a800 0 0 2 40000 3b 1 + a800 0 0 3 40000 3b 1 + a800 0 0 4 40000 3b 1>; + interrupt-parent = <40000>; + interrupts = <09 2>; + bus-range = <0 0>; + ranges = <02000000 0 a0000000 a0000000 0 20000000 + 01000000 0 00000000 e3000000 0 00100000>; + clock-frequency = <3f940aa>; + #interrupt-cells = <1>; + #size-cells = <2>; + #address-cells = <3>; + reg = <9000 1000>; + compatible = "85xx"; + device_type = "pci"; + }; + + pic@40000 { + linux,phandle = <40000>; + clock-frequency = <0>; + interrupt-controller; + #address-cells = <0>; + #interrupt-cells = <2>; + reg = <40000 40000>; + built-in; + compatible = "chrp,open-pic"; + device_type = "open-pic"; + big-endian; + }; + }; +}; From 343832734fac000d2d276ccc41955daded1265f5 Mon Sep 17 00:00:00 2001 From: Jon Loeliger Date: Fri, 18 Aug 2006 14:30:35 -0500 Subject: [PATCH 269/488] [POWERPC] Rewrite the PPC 86xx IRQ handling to use Flat Device Tree IRQ setup now comes from the Flat Device Tree and use the new generic IRQ code. Fixed the fsl_soc.c IRQ OF interrupt node parsing. Removed some unused MPC86xx macro definition. Signed-off-by: Zhang Wei Signed-off-by: Jon Loeliger Signed-off-by: Paul Mackerras (cherry picked from 919fede6edab94cccb3ca8c1c0b32fa62c9369a5 commit) --- arch/powerpc/platforms/86xx/mpc8641_hpcn.h | 32 -- arch/powerpc/platforms/86xx/mpc86xx_hpcn.c | 330 +++++++++++---------- arch/powerpc/sysdev/fsl_soc.c | 30 +- 3 files changed, 191 insertions(+), 201 deletions(-) diff --git a/arch/powerpc/platforms/86xx/mpc8641_hpcn.h b/arch/powerpc/platforms/86xx/mpc8641_hpcn.h index 5d2bcf78cef7..41e554c4af94 100644 --- a/arch/powerpc/platforms/86xx/mpc8641_hpcn.h +++ b/arch/powerpc/platforms/86xx/mpc8641_hpcn.h @@ -16,38 +16,6 @@ #include -/* PCI interrupt controller */ -#define PIRQA 3 -#define PIRQB 4 -#define PIRQC 5 -#define PIRQD 6 -#define PIRQ7 7 -#define PIRQE 9 -#define PIRQF 10 -#define PIRQG 11 -#define PIRQH 12 - -/* PCI-Express memory map */ -#define MPC86XX_PCIE_LOWER_IO 0x00000000 -#define MPC86XX_PCIE_UPPER_IO 0x00ffffff - -#define MPC86XX_PCIE_LOWER_MEM 0x80000000 -#define MPC86XX_PCIE_UPPER_MEM 0x9fffffff - -#define MPC86XX_PCIE_IO_BASE 0xe2000000 -#define MPC86XX_PCIE_MEM_OFFSET 0x00000000 - -#define MPC86XX_PCIE_IO_SIZE 0x01000000 - -#define PCIE1_CFG_ADDR_OFFSET (0x8000) -#define PCIE1_CFG_DATA_OFFSET (0x8004) - -#define PCIE2_CFG_ADDR_OFFSET (0x9000) -#define PCIE2_CFG_DATA_OFFSET (0x9004) - -#define MPC86xx_PCIE_OFFSET PCIE1_CFG_ADDR_OFFSET -#define MPC86xx_PCIE_SIZE (0x1000) - #define MPC86XX_RSTCR_OFFSET (0xe00b0) /* Reset Control Register */ #endif /* __MPC8641_HPCN_H__ */ diff --git a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c index ebae73eb0063..146da3001c67 100644 --- a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c +++ b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c @@ -37,6 +37,14 @@ #include "mpc86xx.h" #include "mpc8641_hpcn.h" +#undef DEBUG + +#ifdef DEBUG +#define DBG(fmt...) do { printk(KERN_ERR fmt); } while(0) +#else +#define DBG(fmt...) do { } while(0) +#endif + #ifndef CONFIG_PCI unsigned long isa_io_base = 0; unsigned long isa_mem_base = 0; @@ -44,205 +52,215 @@ unsigned long pci_dram_offset = 0; #endif -/* - * Internal interrupts are all Level Sensitive, and Positive Polarity - */ - -static u_char mpc86xx_hpcn_openpic_initsenses[] __initdata = { - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 0: Reserved */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 1: MCM */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 2: DDR DRAM */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 3: LBIU */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 4: DMA 0 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 5: DMA 1 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 6: DMA 2 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 7: DMA 3 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 8: PCIE1 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 9: PCIE2 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 10: Reserved */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 11: Reserved */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 12: DUART2 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 13: TSEC 1 Transmit */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 14: TSEC 1 Receive */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 15: TSEC 3 transmit */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 16: TSEC 3 receive */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 17: TSEC 3 error */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 18: TSEC 1 Receive/Transmit Error */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 19: TSEC 2 Transmit */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 20: TSEC 2 Receive */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 21: TSEC 4 transmit */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 22: TSEC 4 receive */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 23: TSEC 4 error */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 24: TSEC 2 Receive/Transmit Error */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 25: Unused */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 26: DUART1 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 27: I2C */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 28: Performance Monitor */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 29: Unused */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 30: Unused */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 31: Unused */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 32: SRIO error/write-port unit */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 33: SRIO outbound doorbell */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 34: SRIO inbound doorbell */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 35: Unused */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 36: Unused */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 37: SRIO outbound message unit 1 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 38: SRIO inbound message unit 1 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 39: SRIO outbound message unit 2 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 40: SRIO inbound message unit 2 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 41: Unused */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 42: Unused */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 43: Unused */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 44: Unused */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 45: Unused */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 46: Unused */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 47: Unused */ - 0x0, /* External 0: */ - 0x0, /* External 1: */ - 0x0, /* External 2: */ - 0x0, /* External 3: */ - 0x0, /* External 4: */ - 0x0, /* External 5: */ - 0x0, /* External 6: */ - 0x0, /* External 7: */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* External 8: Pixis FPGA */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* External 9: ULI 8259 INTR Cascade */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* External 10: Quad ETH PHY */ - 0x0, /* External 11: */ - 0x0, - 0x0, - 0x0, - 0x0, -}; - +static void mpc86xx_8259_cascade(unsigned int irq, struct irq_desc *desc, + struct pt_regs *regs) +{ + unsigned int cascade_irq = i8259_irq(regs); + if (cascade_irq != NO_IRQ) + generic_handle_irq(cascade_irq, regs); + desc->chip->eoi(irq); +} void __init mpc86xx_hpcn_init_irq(void) { struct mpic *mpic1; + struct device_node *np, *cascade_node = NULL; + int cascade_irq; phys_addr_t openpic_paddr; + np = of_find_node_by_type(NULL, "open-pic"); + if (np == NULL) + return; + /* Determine the Physical Address of the OpenPIC regs */ openpic_paddr = get_immrbase() + MPC86xx_OPENPIC_OFFSET; /* Alloc mpic structure and per isu has 16 INT entries. */ - mpic1 = mpic_alloc(openpic_paddr, + mpic1 = mpic_alloc(np, openpic_paddr, MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN, - 16, MPC86xx_OPENPIC_IRQ_OFFSET, 0, 250, - mpc86xx_hpcn_openpic_initsenses, - sizeof(mpc86xx_hpcn_openpic_initsenses), + 16, NR_IRQS - 4, " MPIC "); BUG_ON(mpic1 == NULL); - /* 48 Internal Interrupts */ - mpic_assign_isu(mpic1, 0, openpic_paddr + 0x10200); - mpic_assign_isu(mpic1, 1, openpic_paddr + 0x10400); - mpic_assign_isu(mpic1, 2, openpic_paddr + 0x10600); + mpic_assign_isu(mpic1, 0, openpic_paddr + 0x10000); - /* 16 External interrupts */ - mpic_assign_isu(mpic1, 3, openpic_paddr + 0x10000); + /* 48 Internal Interrupts */ + mpic_assign_isu(mpic1, 1, openpic_paddr + 0x10200); + mpic_assign_isu(mpic1, 2, openpic_paddr + 0x10400); + mpic_assign_isu(mpic1, 3, openpic_paddr + 0x10600); + + /* 16 External interrupts + * Moving them from [0 - 15] to [64 - 79] + */ + mpic_assign_isu(mpic1, 4, openpic_paddr + 0x10000); mpic_init(mpic1); #ifdef CONFIG_PCI - mpic_setup_cascade(MPC86xx_IRQ_EXT9, i8259_irq_cascade, NULL); - i8259_init(0, I8259_OFFSET); + /* Initialize i8259 controller */ + for_each_node_by_type(np, "interrupt-controller") + if (device_is_compatible(np, "chrp,iic")) { + cascade_node = np; + break; + } + if (cascade_node == NULL) { + printk(KERN_DEBUG "mpc86xxhpcn: no ISA interrupt controller\n"); + return; + } + + cascade_irq = irq_of_parse_and_map(cascade_node, 0); + if (cascade_irq == NO_IRQ) { + printk(KERN_ERR "mpc86xxhpcn: failed to map cascade interrupt"); + return; + } + DBG("mpc86xxhpcn: cascade mapped to irq %d\n", cascade_irq); + + i8259_init(cascade_node, 0); + set_irq_chained_handler(cascade_irq, mpc86xx_8259_cascade); #endif } - - #ifdef CONFIG_PCI -/* - * interrupt routing - */ -int -mpc86xx_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin) +enum pirq{PIRQA = 8, PIRQB, PIRQC, PIRQD, PIRQE, PIRQF, PIRQG, PIRQH}; +const unsigned char uli1575_irq_route_table[16] = { + 0, /* 0: Reserved */ + 0x8, /* 1: 0b1000 */ + 0, /* 2: Reserved */ + 0x2, /* 3: 0b0010 */ + 0x4, /* 4: 0b0100 */ + 0x5, /* 5: 0b0101 */ + 0x7, /* 6: 0b0111 */ + 0x6, /* 7: 0b0110 */ + 0, /* 8: Reserved */ + 0x1, /* 9: 0b0001 */ + 0x3, /* 10: 0b0011 */ + 0x9, /* 11: 0b1001 */ + 0xb, /* 12: 0b1011 */ + 0, /* 13: Reserved */ + 0xd, /* 14, 0b1101 */ + 0xf, /* 15, 0b1111 */ +}; + +static int __devinit +get_pci_irq_from_of(struct pci_controller *hose, int slot, int pin) { - static char pci_irq_table[][4] = { - /* - * PCI IDSEL/INTPIN->INTLINE - * A B C D - */ - {PIRQA, PIRQB, PIRQC, PIRQD}, /* IDSEL 17 -- PCI Slot 1 */ - {PIRQB, PIRQC, PIRQD, PIRQA}, /* IDSEL 18 -- PCI Slot 2 */ - {0, 0, 0, 0}, /* IDSEL 19 */ - {0, 0, 0, 0}, /* IDSEL 20 */ - {0, 0, 0, 0}, /* IDSEL 21 */ - {0, 0, 0, 0}, /* IDSEL 22 */ - {0, 0, 0, 0}, /* IDSEL 23 */ - {0, 0, 0, 0}, /* IDSEL 24 */ - {0, 0, 0, 0}, /* IDSEL 25 */ - {PIRQD, PIRQA, PIRQB, PIRQC}, /* IDSEL 26 -- PCI Bridge*/ - {PIRQC, 0, 0, 0}, /* IDSEL 27 -- LAN */ - {PIRQE, PIRQF, PIRQH, PIRQ7}, /* IDSEL 28 -- USB 1.1 */ - {PIRQE, PIRQF, PIRQG, 0}, /* IDSEL 29 -- Audio & Modem */ - {PIRQH, 0, 0, 0}, /* IDSEL 30 -- LPC & PMU*/ - {PIRQD, 0, 0, 0}, /* IDSEL 31 -- ATA */ - }; + struct of_irq oirq; + u32 laddr[3]; + struct device_node *hosenode = hose ? hose->arch_data : NULL; - const long min_idsel = 17, max_idsel = 31, irqs_per_slot = 4; - return PCI_IRQ_TABLE_LOOKUP + I8259_OFFSET; + if (!hosenode) return -EINVAL; + + laddr[0] = (hose->first_busno << 16) | (PCI_DEVFN(slot, 0) << 8); + laddr[1] = laddr[2] = 0; + of_irq_map_raw(hosenode, &pin, laddr, &oirq); + DBG("mpc86xx_hpcn: pci irq addr %x, slot %d, pin %d, irq %d\n", + laddr[0], slot, pin, oirq.specifier[0]); + return oirq.specifier[0]; } -static void __devinit quirk_ali1575(struct pci_dev *dev) +static void __devinit quirk_uli1575(struct pci_dev *dev) { unsigned short temp; + struct pci_controller *hose = pci_bus_to_host(dev->bus); + unsigned char irq2pin[16]; + unsigned long pirq_map_word = 0; + u32 irq; + int i; /* - * ALI1575 interrupts route table setup: - * - * IRQ pin IRQ# - * PIRQA ---- 3 - * PIRQB ---- 4 - * PIRQC ---- 5 - * PIRQD ---- 6 - * PIRQE ---- 9 - * PIRQF ---- 10 - * PIRQG ---- 11 - * PIRQH ---- 12 + * ULI1575 interrupts route setup + */ + memset(irq2pin, 0, 16); /* Initialize default value 0 */ + + /* + * PIRQA -> PIRQD mapping read from OF-tree * * interrupts for PCI slot0 -- PIRQA / PIRQB / PIRQC / PIRQD * PCI slot1 -- PIRQB / PIRQC / PIRQD / PIRQA */ - pci_write_config_dword(dev, 0x48, 0xb9317542); + for (i = 0; i < 4; i++){ + irq = get_pci_irq_from_of(hose, 17, i + 1); + if (irq > 0 && irq < 16) + irq2pin[irq] = PIRQA + i; + else + printk(KERN_WARNING "ULI1575 device" + "(slot %d, pin %d) irq %d is invalid.\n", + 17, i, irq); + } - /* USB 1.1 OHCI controller 1, interrupt: PIRQE */ - pci_write_config_byte(dev, 0x86, 0x0c); + /* + * PIRQE -> PIRQF mapping set manually + * + * IRQ pin IRQ# + * PIRQE ---- 9 + * PIRQF ---- 10 + * PIRQG ---- 11 + * PIRQH ---- 12 + */ + for (i = 0; i < 4; i++) irq2pin[i + 9] = PIRQE + i; - /* USB 1.1 OHCI controller 2, interrupt: PIRQF */ - pci_write_config_byte(dev, 0x87, 0x0d); + /* Set IRQ-PIRQ Mapping to ULI1575 */ + for (i = 0; i < 16; i++) + if (irq2pin[i]) + pirq_map_word |= (uli1575_irq_route_table[i] & 0xf) + << ((irq2pin[i] - PIRQA) * 4); - /* USB 1.1 OHCI controller 3, interrupt: PIRQH */ - pci_write_config_byte(dev, 0x88, 0x0f); + /* ULI1575 IRQ mapping conf register default value is 0xb9317542 */ + DBG("Setup ULI1575 IRQ mapping configuration register value = 0x%x\n", + pirq_map_word); + pci_write_config_dword(dev, 0x48, pirq_map_word); - /* USB 2.0 controller, interrupt: PIRQ7 */ - pci_write_config_byte(dev, 0x74, 0x06); +#define ULI1575_SET_DEV_IRQ(slot, pin, reg) \ + do { \ + int irq; \ + irq = get_pci_irq_from_of(hose, slot, pin); \ + if (irq > 0 && irq < 16) \ + pci_write_config_byte(dev, reg, irq2pin[irq]); \ + else \ + printk(KERN_WARNING "ULI1575 device" \ + "(slot %d, pin %d) irq %d is invalid.\n", \ + slot, pin, irq); \ + } while(0) - /* Audio controller, interrupt: PIRQE */ - pci_write_config_byte(dev, 0x8a, 0x0c); + /* USB 1.1 OHCI controller 1, slot 28, pin 1 */ + ULI1575_SET_DEV_IRQ(28, 1, 0x86); - /* Modem controller, interrupt: PIRQF */ - pci_write_config_byte(dev, 0x8b, 0x0d); + /* USB 1.1 OHCI controller 2, slot 28, pin 2 */ + ULI1575_SET_DEV_IRQ(28, 2, 0x87); - /* HD audio controller, interrupt: PIRQG */ - pci_write_config_byte(dev, 0x8c, 0x0e); + /* USB 1.1 OHCI controller 3, slot 28, pin 3 */ + ULI1575_SET_DEV_IRQ(28, 3, 0x88); - /* Serial ATA interrupt: PIRQD */ - pci_write_config_byte(dev, 0x8d, 0x0b); + /* USB 2.0 controller, slot 28, pin 4 */ + irq = get_pci_irq_from_of(hose, 28, 4); + if (irq >= 0 && irq <=15) + pci_write_config_dword(dev, 0x74, uli1575_irq_route_table[irq]); - /* SMB interrupt: PIRQH */ - pci_write_config_byte(dev, 0x8e, 0x0f); + /* Audio controller, slot 29, pin 1 */ + ULI1575_SET_DEV_IRQ(29, 1, 0x8a); - /* PMU ACPI SCI interrupt: PIRQH */ - pci_write_config_byte(dev, 0x8f, 0x0f); + /* Modem controller, slot 29, pin 2 */ + ULI1575_SET_DEV_IRQ(29, 2, 0x8b); + + /* HD audio controller, slot 29, pin 3 */ + ULI1575_SET_DEV_IRQ(29, 3, 0x8c); + + /* SMB interrupt: slot 30, pin 1 */ + ULI1575_SET_DEV_IRQ(30, 1, 0x8e); + + /* PMU ACPI SCI interrupt: slot 30, pin 2 */ + ULI1575_SET_DEV_IRQ(30, 2, 0x8f); + + /* Serial ATA interrupt: slot 31, pin 1 */ + ULI1575_SET_DEV_IRQ(31, 1, 0x8d); /* Primary PATA IDE IRQ: 14 * Secondary PATA IDE IRQ: 15 */ - pci_write_config_byte(dev, 0x44, 0x3d); - pci_write_config_byte(dev, 0x75, 0x0f); + pci_write_config_byte(dev, 0x44, 0x30 | uli1575_irq_route_table[14]); + pci_write_config_byte(dev, 0x75, uli1575_irq_route_table[15]); /* Set IRQ14 and IRQ15 to legacy IRQs */ pci_read_config_word(dev, 0x46, &temp); @@ -264,6 +282,8 @@ static void __devinit quirk_ali1575(struct pci_dev *dev) */ outb(0xfa, 0x4d0); outb(0x1e, 0x4d1); + +#undef ULI1575_SET_DEV_IRQ } static void __devinit quirk_uli5288(struct pci_dev *dev) @@ -306,7 +326,7 @@ static void __devinit early_uli5249(struct pci_dev *dev) dev->class |= 0x1; } -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, 0x1575, quirk_ali1575); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, 0x1575, quirk_uli1575); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, 0x5288, quirk_uli5288); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, 0x5229, quirk_uli5229); DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_AL, 0x5249, early_uli5249); @@ -337,8 +357,6 @@ mpc86xx_hpcn_setup_arch(void) for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;) add_bridge(np); - ppc_md.pci_swizzle = common_swizzle; - ppc_md.pci_map_irq = mpc86xx_map_irq; ppc_md.pci_exclude_device = mpc86xx_exclude_device; #endif @@ -377,6 +395,15 @@ mpc86xx_hpcn_show_cpuinfo(struct seq_file *m) } +void __init mpc86xx_hpcn_pcibios_fixup(void) +{ + struct pci_dev *dev = NULL; + + for_each_pci_dev(dev) + pci_read_irq_line(dev); +} + + /* * Called very early, device-tree isn't unflattened */ @@ -431,6 +458,7 @@ define_machine(mpc86xx_hpcn) { .setup_arch = mpc86xx_hpcn_setup_arch, .init_IRQ = mpc86xx_hpcn_init_irq, .show_cpuinfo = mpc86xx_hpcn_show_cpuinfo, + .pcibios_fixup = mpc86xx_hpcn_pcibios_fixup, .get_irq = mpic_get_irq, .restart = mpc86xx_restart, .time_init = mpc86xx_time_init, diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c index 12b65609c072..ef10bcf2d943 100644 --- a/arch/powerpc/sysdev/fsl_soc.c +++ b/arch/powerpc/sysdev/fsl_soc.c @@ -85,11 +85,8 @@ static int __init gfar_mdio_of_init(void) mdio_data.irq[k] = -1; while ((child = of_get_next_child(np, child)) != NULL) { - if (child->n_intrs) { - u32 *id = - (u32 *) get_property(child, "reg", NULL); - mdio_data.irq[*id] = child->intrs[0].line; - } + u32 *id = get_property(child, "reg", NULL); + mdio_data.irq[*id] = irq_of_parse_and_map(child, 0); } ret = @@ -131,6 +128,7 @@ static int __init gfar_of_init(void) char *model; void *mac_addr; phandle *ph; + int n_res = 1; memset(r, 0, sizeof(r)); memset(&gfar_data, 0, sizeof(gfar_data)); @@ -139,8 +137,7 @@ static int __init gfar_of_init(void) if (ret) goto err; - r[1].start = np->intrs[0].line; - r[1].end = np->intrs[0].line; + r[1].start = r[1].end = irq_of_parse_and_map(np, 0); r[1].flags = IORESOURCE_IRQ; model = get_property(np, "model", NULL); @@ -150,19 +147,19 @@ static int __init gfar_of_init(void) r[1].name = gfar_tx_intr; r[2].name = gfar_rx_intr; - r[2].start = np->intrs[1].line; - r[2].end = np->intrs[1].line; + r[2].start = r[2].end = irq_of_parse_and_map(np, 1); r[2].flags = IORESOURCE_IRQ; r[3].name = gfar_err_intr; - r[3].start = np->intrs[2].line; - r[3].end = np->intrs[2].line; + r[3].start = r[3].end = irq_of_parse_and_map(np, 2); r[3].flags = IORESOURCE_IRQ; + + n_res += 2; } gfar_dev = platform_device_register_simple("fsl-gianfar", i, &r[0], - np->n_intrs + 1); + n_res + 1); if (IS_ERR(gfar_dev)) { ret = PTR_ERR(gfar_dev); @@ -259,8 +256,7 @@ static int __init fsl_i2c_of_init(void) if (ret) goto err; - r[1].start = np->intrs[0].line; - r[1].end = np->intrs[0].line; + r[1].start = r[1].end = irq_of_parse_and_map(np, 0); r[1].flags = IORESOURCE_IRQ; i2c_dev = platform_device_register_simple("fsl-i2c", i, r, 2); @@ -396,8 +392,7 @@ static int __init fsl_usb_of_init(void) if (ret) goto err; - r[1].start = np->intrs[0].line; - r[1].end = np->intrs[0].line; + r[1].start = r[1].end = irq_of_parse_and_map(np, 0); r[1].flags = IORESOURCE_IRQ; usb_dev_mph = @@ -445,8 +440,7 @@ static int __init fsl_usb_of_init(void) if (ret) goto unreg_mph; - r[1].start = np->intrs[0].line; - r[1].end = np->intrs[0].line; + r[1].start = r[1].end = irq_of_parse_and_map(np, 0); r[1].flags = IORESOURCE_IRQ; usb_dev_dr = From aa74a30be971c632d734e487df42278b1cf85151 Mon Sep 17 00:00:00 2001 From: Andy Fleming Date: Mon, 21 Aug 2006 14:29:28 -0500 Subject: [PATCH 270/488] [POWERPC] Fix FEC node in 8540 ADS dts * Fixed the FEC node, and its accompanying PHY * Fixed a spacing issue in the PIC node Signed-off-by: Paul Mackerras --- arch/powerpc/boot/dts/mpc8540ads.dts | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/arch/powerpc/boot/dts/mpc8540ads.dts b/arch/powerpc/boot/dts/mpc8540ads.dts index 93d2c2de6566..5f41c1f7a5f3 100644 --- a/arch/powerpc/boot/dts/mpc8540ads.dts +++ b/arch/powerpc/boot/dts/mpc8540ads.dts @@ -83,11 +83,11 @@ reg = <1>; device_type = "ethernet-phy"; }; - ethernet-phy@2 { - linux,phandle = <2452002>; + ethernet-phy@3 { + linux,phandle = <2452003>; interrupt-parent = <40000>; interrupts = <37 1>; - reg = <2>; + reg = <3>; device_type = "ethernet-phy"; }; }; @@ -124,14 +124,14 @@ #address-cells = <1>; #size-cells = <0>; device_type = "network"; - model = "TSEC"; + model = "FEC"; compatible = "gianfar"; reg = <26000 1000>; address = [ 00 E0 0C 00 73 02 ]; local-mac-address = [ 00 E0 0C 00 73 02 ]; interrupts = <19 2>; interrupt-parent = <40000>; - phy-handle = <2452002>; + phy-handle = <2452003>; }; serial@4500 { @@ -251,7 +251,7 @@ built-in; compatible = "chrp,open-pic"; device_type = "open-pic"; - big-endian; + big-endian; }; }; }; From 5db9fa9593e2ff69f2b95f9d59229dc4faaa564d Mon Sep 17 00:00:00 2001 From: Nathan Lynch Date: Tue, 22 Aug 2006 20:36:05 -0500 Subject: [PATCH 271/488] [POWERPC] Fix gettimeofday inaccuracies There are two problems in the powerpc gettimeofday code which can cause incorrect results to be returned. The first is that there is a race between do_gettimeofday and the timer interrupt: 1. do_gettimeofday does get_tb() 2. decrementer exception on boot cpu which runs timer_recalc_offset, which also samples the timebase and updates the do_gtod structure with a greater timebase value. 3. do_gettimeofday calls __do_gettimeofday, which leads to the negative result from tb_val - temp_varp->tb_orig_stamp. The second is caused by taking the boot cpu offline, which can cause the value of tb_last_jiffy to be increased past the currently available timebase, causing the same underflow as above. [paulus@samba.org - define and use data_barrier() instead of mb().] Signed-off-by: Nathan Lynch Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/time.c | 25 +++++++++++++++++-------- include/asm-powerpc/system.h | 9 +++++++++ 2 files changed, 26 insertions(+), 8 deletions(-) diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c index 774c0a3c5019..18e59e43d2b3 100644 --- a/arch/powerpc/kernel/time.c +++ b/arch/powerpc/kernel/time.c @@ -417,7 +417,7 @@ static __inline__ void timer_check_rtc(void) /* * This version of gettimeofday has microsecond resolution. */ -static inline void __do_gettimeofday(struct timeval *tv, u64 tb_val) +static inline void __do_gettimeofday(struct timeval *tv) { unsigned long sec, usec; u64 tb_ticks, xsec; @@ -431,7 +431,12 @@ static inline void __do_gettimeofday(struct timeval *tv, u64 tb_val) * without a divide (and in fact, without a multiply) */ temp_varp = do_gtod.varp; - tb_ticks = tb_val - temp_varp->tb_orig_stamp; + + /* Sampling the time base must be done after loading + * do_gtod.varp in order to avoid racing with update_gtod. + */ + data_barrier(temp_varp); + tb_ticks = get_tb() - temp_varp->tb_orig_stamp; temp_tb_to_xs = temp_varp->tb_to_xs; temp_stamp_xsec = temp_varp->stamp_xsec; xsec = temp_stamp_xsec + mulhdu(tb_ticks, temp_tb_to_xs); @@ -464,7 +469,7 @@ void do_gettimeofday(struct timeval *tv) tv->tv_usec = usec; return; } - __do_gettimeofday(tv, get_tb()); + __do_gettimeofday(tv); } EXPORT_SYMBOL(do_gettimeofday); @@ -650,6 +655,7 @@ void timer_interrupt(struct pt_regs * regs) int next_dec; int cpu = smp_processor_id(); unsigned long ticks; + u64 tb_next_jiffy; #ifdef CONFIG_PPC32 if (atomic_read(&ppc_n_lost_interrupts) != 0) @@ -691,11 +697,14 @@ void timer_interrupt(struct pt_regs * regs) continue; write_seqlock(&xtime_lock); - tb_last_jiffy += tb_ticks_per_jiffy; - tb_last_stamp = per_cpu(last_jiffy, cpu); - do_timer(regs); - timer_recalc_offset(tb_last_jiffy); - timer_check_rtc(); + tb_next_jiffy = tb_last_jiffy + tb_ticks_per_jiffy; + if (per_cpu(last_jiffy, cpu) >= tb_next_jiffy) { + tb_last_jiffy = tb_next_jiffy; + tb_last_stamp = per_cpu(last_jiffy, cpu); + do_timer(regs); + timer_recalc_offset(tb_last_jiffy); + timer_check_rtc(); + } write_sequnlock(&xtime_lock); } diff --git a/include/asm-powerpc/system.h b/include/asm-powerpc/system.h index 7307aa775671..4c9f5229e833 100644 --- a/include/asm-powerpc/system.h +++ b/include/asm-powerpc/system.h @@ -53,6 +53,15 @@ #define smp_read_barrier_depends() do { } while(0) #endif /* CONFIG_SMP */ +/* + * This is a barrier which prevents following instructions from being + * started until the value of the argument x is known. For example, if + * x is a variable loaded from memory, this prevents following + * instructions from being executed until the load has been performed. + */ +#define data_barrier(x) \ + asm volatile("twi 0,%0,0; isync" : : "r" (x) : "memory"); + struct task_struct; struct pt_regs; From 6cdd2bdfb9e2449f1c8a0f729cdf9cfd733dd63f Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Wed, 23 Aug 2006 11:45:12 +1000 Subject: [PATCH 272/488] [POWERPC] Fix BootX booting with an initrd The bootx_init.c trampoline didn't properly add the ramdisk to the "reserve map" (list of reserved areas of memory), thus causing all sorts of failures when using BootX with an initrd. Also fixes a possible problem if the ramdisk is located before the device-tree passed by BootX. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras --- arch/powerpc/platforms/powermac/bootx_init.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/arch/powerpc/platforms/powermac/bootx_init.c b/arch/powerpc/platforms/powermac/bootx_init.c index 6a026c733f6a..9d73d0234c5d 100644 --- a/arch/powerpc/platforms/powermac/bootx_init.c +++ b/arch/powerpc/platforms/powermac/bootx_init.c @@ -411,8 +411,15 @@ static unsigned long __init bootx_flatten_dt(unsigned long start) DBG("End of boot params: %x\n", mem_end); rsvmap[0] = mem_start; rsvmap[1] = mem_end; - rsvmap[2] = 0; - rsvmap[3] = 0; + if (bootx_info->ramDisk) { + rsvmap[2] = ((unsigned long)bootx_info) + bootx_info->ramDisk; + rsvmap[3] = rsvmap[2] + bootx_info->ramDiskSize; + rsvmap[4] = 0; + rsvmap[5] = 0; + } else { + rsvmap[2] = 0; + rsvmap[3] = 0; + } return (unsigned long)hdr; } @@ -543,12 +550,12 @@ void __init bootx_init(unsigned long r3, unsigned long r4) */ if (bi->version < 5) { space = bi->deviceTreeOffset + bi->deviceTreeSize; - if (bi->ramDisk) + if (bi->ramDisk >= space) space = bi->ramDisk + bi->ramDiskSize; } else space = bi->totalParamsSize; - bootx_printf("Total space used by parameters & ramdisk: %x \n", space); + bootx_printf("Total space used by parameters & ramdisk: 0x%x \n", space); /* New BootX will have flushed all TLBs and enters kernel with * MMU switched OFF, so this should not be useful anymore. From c4342ff92bed26f2e0e3543a9f0fdc5f3a29b8fd Mon Sep 17 00:00:00 2001 From: Zang Roy-r61911 Date: Wed, 23 Aug 2006 10:19:50 +0800 Subject: [PATCH 273/488] [POWERPC] Update mpc7448hpc2 board irq support using device tree The patch rewrites mpc7448hpc2 board irq support according to the new mpic device tree interface. Signed-off-by: Roy Zang Signed-off-by: Paul Mackerras --- .../platforms/embedded6xx/mpc7448_hpc2.c | 73 ++++------- arch/powerpc/sysdev/tsi108_dev.c | 10 +- arch/powerpc/sysdev/tsi108_pci.c | 21 +-- include/asm-powerpc/tsi108.h | 14 +- include/asm-powerpc/tsi108_irq.h | 124 ++++++++++++++++++ 5 files changed, 174 insertions(+), 68 deletions(-) create mode 100644 include/asm-powerpc/tsi108_irq.h diff --git a/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c b/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c index d7a4fc7ca238..ed00ed2455dd 100644 --- a/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c +++ b/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c @@ -1,7 +1,7 @@ /* * mpc7448_hpc2.c * - * Board setup routines for the Freescale Taiga platform + * Board setup routines for the Freescale mpc7448hpc2(taiga) platform * * Author: Jacob Pan * jacob.pan@freescale.com @@ -12,10 +12,10 @@ * * Copyright 2004-2006 Freescale Semiconductor, Inc. * - * This file is licensed under - * the terms of the GNU General Public License version 2. This program - * is licensed "as is" without any warranty of any kind, whether express - * or implied. + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. */ #include @@ -62,43 +62,8 @@ pci_dram_offset = MPC7448_HPC2_PCI_MEM_OFFSET; extern int tsi108_setup_pci(struct device_node *dev); extern void _nmask_and_or_msr(unsigned long nmask, unsigned long or_val); extern void tsi108_pci_int_init(void); -extern int tsi108_irq_cascade(struct pt_regs *regs, void *unused); - -/* - * Define all of the IRQ senses and polarities. Taken from the - * mpc7448hpc manual. - * Note: Likely, this table and the following function should be - * obtained and derived from the OF Device Tree. - */ - -static u_char mpc7448_hpc2_pic_initsenses[] __initdata = { - /* External on-board sources */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* INT[0] XINT0 from FPGA */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* INT[1] XINT1 from FPGA */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* INT[2] PHY_INT from both GIGE */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* INT[3] RESERVED */ - /* Internal Tsi108/109 interrupt sources */ - (IRQ_SENSE_EDGE | IRQ_POLARITY_POSITIVE), /* Reserved IRQ */ - (IRQ_SENSE_EDGE | IRQ_POLARITY_POSITIVE), /* Reserved IRQ */ - (IRQ_SENSE_EDGE | IRQ_POLARITY_POSITIVE), /* Reserved IRQ */ - (IRQ_SENSE_EDGE | IRQ_POLARITY_POSITIVE), /* Reserved IRQ */ - (IRQ_SENSE_EDGE | IRQ_POLARITY_POSITIVE), /* DMA0 */ - (IRQ_SENSE_EDGE | IRQ_POLARITY_POSITIVE), /* DMA1 */ - (IRQ_SENSE_EDGE | IRQ_POLARITY_POSITIVE), /* DMA2 */ - (IRQ_SENSE_EDGE | IRQ_POLARITY_POSITIVE), /* DMA3 */ - (IRQ_SENSE_EDGE | IRQ_POLARITY_POSITIVE), /* UART0 */ - (IRQ_SENSE_EDGE | IRQ_POLARITY_POSITIVE), /* UART1 */ - (IRQ_SENSE_EDGE | IRQ_POLARITY_POSITIVE), /* I2C */ - (IRQ_SENSE_EDGE | IRQ_POLARITY_POSITIVE), /* GPIO */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* GIGE0 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* GIGE1 */ - (IRQ_SENSE_EDGE | IRQ_POLARITY_POSITIVE), /* Reserved IRQ */ - (IRQ_SENSE_EDGE | IRQ_POLARITY_POSITIVE), /* HLP */ - (IRQ_SENSE_EDGE | IRQ_POLARITY_POSITIVE), /* SDC */ - (IRQ_SENSE_EDGE | IRQ_POLARITY_POSITIVE), /* Processor IF */ - (IRQ_SENSE_EDGE | IRQ_POLARITY_POSITIVE), /* Reserved IRQ */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* PCI/X block */ -}; +extern void tsi108_irq_cascade(unsigned int irq, struct irq_desc *desc, + struct pt_regs *regs); int mpc7448_hpc2_exclude_device(u_char bus, u_char devfn) { @@ -229,6 +194,8 @@ static void __init mpc7448_hpc2_init_IRQ(void) { struct mpic *mpic; phys_addr_t mpic_paddr = 0; + unsigned int cascade_pci_irq; + struct device_node *tsi_pci; struct device_node *tsi_pic; tsi_pic = of_find_node_by_type(NULL, "open-pic"); @@ -246,24 +213,31 @@ static void __init mpc7448_hpc2_init_IRQ(void) DBG("%s: tsi108pic phys_addr = 0x%x\n", __FUNCTION__, (u32) mpic_paddr); - mpic = mpic_alloc(mpic_paddr, + mpic = mpic_alloc(tsi_pic, mpic_paddr, MPIC_PRIMARY | MPIC_BIG_ENDIAN | MPIC_WANTS_RESET | MPIC_SPV_EOI | MPIC_MOD_ID(MPIC_ID_TSI108), 0, /* num_sources used */ - TSI108_IRQ_BASE, 0, /* num_sources used */ - NR_IRQS - 4 /* XXXX */, - mpc7448_hpc2_pic_initsenses, - sizeof(mpc7448_hpc2_pic_initsenses), "Tsi108_PIC"); + "Tsi108_PIC"); BUG_ON(mpic == NULL); /* XXXX */ - mpic_init(mpic); - mpic_setup_cascade(IRQ_TSI108_PCI, tsi108_irq_cascade, mpic); + + tsi_pci = of_find_node_by_type(NULL, "pci"); + if (tsi_pci == 0) { + printk("%s: No tsi108 pci node found !\n", __FUNCTION__); + return; + } + + cascade_pci_irq = irq_of_parse_and_map(tsi_pci, 0); + set_irq_data(cascade_pci_irq, mpic); + set_irq_chained_handler(cascade_pci_irq, tsi108_irq_cascade); + tsi108_pci_int_init(); /* Configure MPIC outputs to CPU0 */ tsi108_write_reg(TSI108_MPIC_OFFSET + 0x30c, 0); + of_node_put(tsi_pic); } void mpc7448_hpc2_show_cpuinfo(struct seq_file *m) @@ -320,6 +294,7 @@ static int mpc7448_machine_check_exception(struct pt_regs *regs) return 0; } + define_machine(mpc7448_hpc2){ .name = "MPC7448 HPC2", .probe = mpc7448_hpc2_probe, diff --git a/arch/powerpc/sysdev/tsi108_dev.c b/arch/powerpc/sysdev/tsi108_dev.c index 26a0cc820cde..f3038461d4c0 100644 --- a/arch/powerpc/sysdev/tsi108_dev.c +++ b/arch/powerpc/sysdev/tsi108_dev.c @@ -93,13 +93,15 @@ static int __init tsi108_eth_of_init(void) goto err; r[1].name = "tx"; - r[1].start = np->intrs[0].line; - r[1].end = np->intrs[0].line; + r[1].start = irq_of_parse_and_map(np, 0); + r[1].end = irq_of_parse_and_map(np, 0); r[1].flags = IORESOURCE_IRQ; + DBG("%s: name:start->end = %s:0x%lx-> 0x%lx\n", + __FUNCTION__,r[1].name, r[1].start, r[1].end); tsi_eth_dev = platform_device_register_simple("tsi-ethernet", i, &r[0], - np->n_intrs + 1); + 1); if (IS_ERR(tsi_eth_dev)) { ret = PTR_ERR(tsi_eth_dev); @@ -127,7 +129,7 @@ static int __init tsi108_eth_of_init(void) tsi_eth_data.regs = r[0].start; tsi_eth_data.phyregs = res.start; tsi_eth_data.phy = *phy_id; - tsi_eth_data.irq_num = np->intrs[0].line; + tsi_eth_data.irq_num = irq_of_parse_and_map(np, 0); of_node_put(phy); ret = platform_device_add_data(tsi_eth_dev, &tsi_eth_data, diff --git a/arch/powerpc/sysdev/tsi108_pci.c b/arch/powerpc/sysdev/tsi108_pci.c index 3265d54c82ed..2ab06ed3ae73 100644 --- a/arch/powerpc/sysdev/tsi108_pci.c +++ b/arch/powerpc/sysdev/tsi108_pci.c @@ -26,7 +26,6 @@ #include #include - #include #include #include @@ -228,7 +227,7 @@ int __init tsi108_setup_pci(struct device_node *dev) (hose)->ops = &tsi108_direct_pci_ops; - printk(KERN_INFO "Found tsi108 PCI host bridge at 0x%08lx. " + printk(KERN_INFO "Found tsi108 PCI host bridge at 0x%08x. " "Firmware bus number: %d->%d\n", rsrc.start, hose->first_busno, hose->last_busno); @@ -278,7 +277,7 @@ static void init_pci_source(void) mb(); } -static inline int get_pci_source(void) +static inline unsigned int get_pci_source(void) { u_int temp = 0; int irq = -1; @@ -371,12 +370,12 @@ static void tsi108_pci_irq_end(u_int irq) * Interrupt controller descriptor for cascaded PCI interrupt controller. */ -struct hw_interrupt_type tsi108_pci_irq = { +static struct irq_chip tsi108_pci_irq = { .typename = "tsi108_PCI_int", - .enable = tsi108_pci_irq_enable, - .disable = tsi108_pci_irq_disable, + .mask = tsi108_pci_irq_disable, .ack = tsi108_pci_irq_ack, .end = tsi108_pci_irq_end, + .unmask = tsi108_pci_irq_enable, }; /* @@ -399,14 +398,18 @@ void __init tsi108_pci_int_init(void) DBG("Tsi108_pci_int_init: initializing PCI interrupts\n"); for (i = 0; i < NUM_PCI_IRQS; i++) { - irq_desc[i + IRQ_PCI_INTAD_BASE].handler = &tsi108_pci_irq; + irq_desc[i + IRQ_PCI_INTAD_BASE].chip = &tsi108_pci_irq; irq_desc[i + IRQ_PCI_INTAD_BASE].status |= IRQ_LEVEL; } init_pci_source(); } -int tsi108_irq_cascade(struct pt_regs *regs, void *unused) +void tsi108_irq_cascade(unsigned int irq, struct irq_desc *desc, + struct pt_regs *regs) { - return get_pci_source(); + unsigned int cascade_irq = get_pci_source(); + if (cascade_irq != NO_IRQ) + generic_handle_irq(cascade_irq, regs); + desc->chip->eoi(irq); } diff --git a/include/asm-powerpc/tsi108.h b/include/asm-powerpc/tsi108.h index c4c278d72f71..2c702d35a7cf 100644 --- a/include/asm-powerpc/tsi108.h +++ b/include/asm-powerpc/tsi108.h @@ -1,16 +1,18 @@ /* - * include/asm-ppc/tsi108.h - * * common routine and memory layout for Tundra TSI108(Grendel) host bridge * memory controller. * * Author: Jacob Pan (jacob.pan@freescale.com) * Alex Bounine (alexandreb@tundra.com) - * 2004 (c) Freescale Semiconductor Inc. This file is licensed under - * the terms of the GNU General Public License version 2. This program - * is licensed "as is" without any warranty of any kind, whether express - * or implied. + * + * Copyright 2004-2006 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. */ + #ifndef __PPC_KERNEL_TSI108_H #define __PPC_KERNEL_TSI108_H diff --git a/include/asm-powerpc/tsi108_irq.h b/include/asm-powerpc/tsi108_irq.h new file mode 100644 index 000000000000..3e4d04effa57 --- /dev/null +++ b/include/asm-powerpc/tsi108_irq.h @@ -0,0 +1,124 @@ +/* + * (C) Copyright 2005 Tundra Semiconductor Corp. + * Alex Bounine, Date: Wed, 23 Aug 2006 10:20:27 +0800 Subject: [PATCH 274/488] [POWERPC] Pass UPIO_TSI flag to 8259 serial driver The patch passes the UPIO_TSI flag to general 8259 serial driver Signed-off-by: Roy Zang Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/legacy_serial.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/kernel/legacy_serial.c b/arch/powerpc/kernel/legacy_serial.c index 359ab89748e0..40a39291861f 100644 --- a/arch/powerpc/kernel/legacy_serial.c +++ b/arch/powerpc/kernel/legacy_serial.c @@ -115,6 +115,7 @@ static int __init add_legacy_soc_port(struct device_node *np, u64 addr; u32 *addrp; upf_t flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_SHARE_IRQ; + struct device_node *tsi = of_get_parent(np); /* We only support ports that have a clock frequency properly * encoded in the device-tree. @@ -134,7 +135,10 @@ static int __init add_legacy_soc_port(struct device_node *np, /* Add port, irq will be dealt with later. We passed a translated * IO port value. It will be fixed up later along with the irq */ - return add_legacy_port(np, -1, UPIO_MEM, addr, addr, NO_IRQ, flags, 0); + if (tsi && !strcmp(tsi->type, "tsi-bridge")) + return add_legacy_port(np, -1, UPIO_TSI, addr, addr, NO_IRQ, flags, 0); + else + return add_legacy_port(np, -1, UPIO_MEM, addr, addr, NO_IRQ, flags, 0); } static int __init add_legacy_isa_port(struct device_node *np, @@ -464,7 +468,7 @@ static int __init serial_dev_init(void) fixup_port_irq(i, np, port); if (port->iotype == UPIO_PORT) fixup_port_pio(i, np, port); - if (port->iotype == UPIO_MEM) + if ((port->iotype == UPIO_MEM) || (port->iotype == UPIO_TSI)) fixup_port_mmio(i, np, port); } From 87589f08beaec3e1f8a3af0c72406c845f706821 Mon Sep 17 00:00:00 2001 From: Paul Mackerras Date: Wed, 23 Aug 2006 16:58:39 +1000 Subject: [PATCH 275/488] [POWERPC] Correct masks used in emulating some instructions When we get an illegal instruction exception, we check to see whether the instruction is one that we emulate for the user program. Some of the masks we use in checking whether the offending instruction is one we care about didn't have the top bit set, which is the MSB of the major opcode. Thus some undefined opcodes could get emulated as other (defined but unimplemented) instructions. This corrects the masks. Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/traps.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index 125761aaa40b..4d0b4e74d579 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -585,14 +585,14 @@ static void parse_fpe(struct pt_regs *regs) #define INST_MFSPR_PVR_MASK 0xfc1fffff #define INST_DCBA 0x7c0005ec -#define INST_DCBA_MASK 0x7c0007fe +#define INST_DCBA_MASK 0xfc0007fe #define INST_MCRXR 0x7c000400 -#define INST_MCRXR_MASK 0x7c0007fe +#define INST_MCRXR_MASK 0xfc0007fe #define INST_STRING 0x7c00042a -#define INST_STRING_MASK 0x7c0007fe -#define INST_STRING_GEN_MASK 0x7c00067e +#define INST_STRING_MASK 0xfc0007fe +#define INST_STRING_GEN_MASK 0xfc00067e #define INST_LSWI 0x7c0004aa #define INST_LSWX 0x7c00042a #define INST_STSWI 0x7c0005aa From d55c4a76f26160482158cd43788dcfc96a320a4f Mon Sep 17 00:00:00 2001 From: Li Yang Date: Wed, 23 Aug 2006 14:13:08 +0800 Subject: [PATCH 276/488] [POWERPC] Fix compile problem without CONFIG_PCI Compile fails without defining CONFIG_PCI. The patch fix this. [paulus@samba.org: Moved of_irq_pci_swizzle so we only need one #ifdef] Signed-off-by: Li Yang Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/prom_parse.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/arch/powerpc/kernel/prom_parse.c b/arch/powerpc/kernel/prom_parse.c index 6a7e997c401d..11052c212ad5 100644 --- a/arch/powerpc/kernel/prom_parse.c +++ b/arch/powerpc/kernel/prom_parse.c @@ -598,11 +598,6 @@ static struct device_node *of_irq_find_parent(struct device_node *child) return p; } -static u8 of_irq_pci_swizzle(u8 slot, u8 pin) -{ - return (((pin - 1) + slot) % 4) + 1; -} - /* This doesn't need to be called if you don't have any special workaround * flags to pass */ @@ -891,6 +886,12 @@ int of_irq_map_one(struct device_node *device, int index, struct of_irq *out_irq } EXPORT_SYMBOL_GPL(of_irq_map_one); +#ifdef CONFIG_PCI +static u8 of_irq_pci_swizzle(u8 slot, u8 pin) +{ + return (((pin - 1) + slot) % 4) + 1; +} + int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq) { struct device_node *dn, *ppnode; @@ -967,4 +968,4 @@ int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq) return of_irq_map_raw(ppnode, &lspec, laddr, out_irq); } EXPORT_SYMBOL_GPL(of_irq_map_pci); - +#endif /* CONFIG_PCI */ From 794ccda61c7dc2aa6c66e8ef18a44d865d3c3a7d Mon Sep 17 00:00:00 2001 From: Pavel Roskin Date: Tue, 15 Aug 2006 20:42:20 -0400 Subject: [PATCH 277/488] [PATCH] spectrum_cs: Fix incorrect use of pcmcia_dev_present() This bug was introduced during the PCMCIA API conversion and broke spectrum_cs completely. Tracked down by Fredrik Tolf Signed-off-by: Pavel Roskin Signed-off-by: John W. Linville --- drivers/net/wireless/spectrum_cs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/spectrum_cs.c b/drivers/net/wireless/spectrum_cs.c index 7f78b7801fb3..bcc7038130f6 100644 --- a/drivers/net/wireless/spectrum_cs.c +++ b/drivers/net/wireless/spectrum_cs.c @@ -242,7 +242,7 @@ spectrum_reset(struct pcmcia_device *link, int idle) u_int save_cor; /* Doing it if hardware is gone is guaranteed crash */ - if (pcmcia_dev_present(link)) + if (!pcmcia_dev_present(link)) return -ENODEV; /* Save original COR value */ From 9b5cce07648d059a013444116bd0140b047b25a1 Mon Sep 17 00:00:00 2001 From: Pavel Roskin Date: Tue, 15 Aug 2006 21:41:39 -0400 Subject: [PATCH 278/488] [PATCH] hostap: Restore antenna selection settings after port reset Intersil firmware 1.7.4 (and possibly others) loses the antenna selection settings when the port is reset. Signed-off-by: David Acker Signed-off-by: Pavel Roskin Signed-off-by: John W. Linville --- drivers/net/wireless/hostap/hostap_hw.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/wireless/hostap/hostap_hw.c b/drivers/net/wireless/hostap/hostap_hw.c index dafaa5ff5aa6..d500012fdc7a 100644 --- a/drivers/net/wireless/hostap/hostap_hw.c +++ b/drivers/net/wireless/hostap/hostap_hw.c @@ -1042,6 +1042,9 @@ static int prism2_reset_port(struct net_device *dev) dev->name, local->fragm_threshold); } + /* Some firmwares lose antenna selection settings on reset */ + (void) hostap_set_antsel(local); + return res; } From 834ac73d4bc804db8ccb3f2a517e36db5f6bc4bd Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Tue, 22 Aug 2006 22:45:06 +0300 Subject: [PATCH 279/488] IB/mthca: Update HCA firmware revisions Update the driver's list of HCA firmware revisions to make sure people running Sinai firmware older than 1.1.0 get a message suggesting a firmware upgrade. Update the Arbel versions as well while we are at it. Signed-off-by: Michael S. Tsirkin Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mthca/mthca_main.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/infiniband/hw/mthca/mthca_main.c b/drivers/infiniband/hw/mthca/mthca_main.c index 557cde3a4563..7b82c1907f04 100644 --- a/drivers/infiniband/hw/mthca/mthca_main.c +++ b/drivers/infiniband/hw/mthca/mthca_main.c @@ -967,12 +967,12 @@ static struct { } mthca_hca_table[] = { [TAVOR] = { .latest_fw = MTHCA_FW_VER(3, 4, 0), .flags = 0 }, - [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 7, 400), + [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 7, 600), .flags = MTHCA_FLAG_PCIE }, - [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 1, 0), + [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 1, 400), .flags = MTHCA_FLAG_MEMFREE | MTHCA_FLAG_PCIE }, - [SINAI] = { .latest_fw = MTHCA_FW_VER(1, 0, 800), + [SINAI] = { .latest_fw = MTHCA_FW_VER(1, 1, 0), .flags = MTHCA_FLAG_MEMFREE | MTHCA_FLAG_PCIE | MTHCA_FLAG_SINAI_OPT } From 25848c4e502ec2bb94ee1f3c82709311059d0857 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 23 Aug 2006 15:33:07 -0700 Subject: [PATCH 280/488] [SCSI] esp: Fix build on SUN4. Noted by Alexey Dobriyan. Signed-off-by: David S. Miller --- drivers/scsi/esp.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/esp.c b/drivers/scsi/esp.c index 98bd22714d0d..5630868c1b25 100644 --- a/drivers/scsi/esp.c +++ b/drivers/scsi/esp.c @@ -1146,7 +1146,7 @@ static struct sbus_dev sun4_esp_dev; static int __init esp_sun4_probe(struct scsi_host_template *tpnt) { if (sun4_esp_physaddr) { - memset(&sun4_esp_dev, 0, sizeof(esp_dev)); + memset(&sun4_esp_dev, 0, sizeof(sun4_esp_dev)); sun4_esp_dev.reg_addrs[0].phys_addr = sun4_esp_physaddr; sun4_esp_dev.irqs[0] = 4; sun4_esp_dev.resource[0].start = sun4_esp_physaddr; @@ -1162,6 +1162,7 @@ static int __init esp_sun4_probe(struct scsi_host_template *tpnt) static int __devexit esp_sun4_remove(void) { + struct of_device *dev = &sun4_esp_dev.ofdev; struct esp *esp = dev_get_drvdata(&dev->dev); return esp_remove_common(esp); From 0f4184f73d5233214d3225a94fcf1bd4d6678d74 Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Wed, 23 Aug 2006 15:50:57 -0700 Subject: [PATCH 281/488] [SERIAL] sunsab: Fix E250 console with RSC. This fixes yet another sunsab problem, when console is set to anything but the first port. The console framework calls sunsab_console_setup for each port, and we end up setting up a console on a not yet discovered port, which leads to an Oops. Instead, defer console setup until the requested port is properly initialized. Tested on an E250 through an RSC console. Reported by Daniel Smolik Signed-off-by: Marc Zyngier Signed-off-by: David S. Miller --- drivers/serial/sunsab.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/serial/sunsab.c b/drivers/serial/sunsab.c index dc673e1b6fd9..cfe20f730436 100644 --- a/drivers/serial/sunsab.c +++ b/drivers/serial/sunsab.c @@ -886,6 +886,15 @@ static int sunsab_console_setup(struct console *con, char *options) unsigned long flags; unsigned int baud, quot; + /* + * The console framework calls us for each and every port + * registered. Defer the console setup until the requested + * port has been properly discovered. A bit of a hack, + * though... + */ + if (up->port.type != PORT_SUNSAB) + return -1; + printk("Console: ttyS%d (SAB82532)\n", (sunsab_reg.minor - 64) + con->index); From b8b99e857d0e258b0da17e55466e5142465d35fd Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 23 Aug 2006 15:53:39 -0700 Subject: [PATCH 282/488] [SERIAL] sunzilog: Mirror the sunsab serial setup bug fix. Signed-off-by: David S. Miller --- drivers/serial/sunzilog.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/serial/sunzilog.c b/drivers/serial/sunzilog.c index 47bc3d57e019..d34f336d53d8 100644 --- a/drivers/serial/sunzilog.c +++ b/drivers/serial/sunzilog.c @@ -1146,6 +1146,9 @@ static int __init sunzilog_console_setup(struct console *con, char *options) unsigned long flags; int baud, brg; + if (up->port.type != PORT_SUNZILOG) + return -1; + printk(KERN_INFO "Console: ttyS%d (SunZilog zs%d)\n", (sunzilog_reg.minor - 64) + con->index, con->index); From c9169f8747bb282cbe518132bf7d49755a00b6c1 Mon Sep 17 00:00:00 2001 From: Adam Litke Date: Fri, 18 Aug 2006 11:22:21 -0700 Subject: [PATCH 283/488] [POWERPC] hugepage BUG fix On Tue, 2006-08-15 at 08:22 -0700, Dave Hansen wrote: > kernel BUG in cache_free_debugcheck at mm/slab.c:2748! Alright, this one is only triggered when slab debugging is enabled. The slabs are assumed to be aligned on a HUGEPTE_TABLE_SIZE boundary. The free path makes use of this assumption and uses the lowest nibble to pass around an index into an array of kmem_cache pointers. With slab debugging turned on, the slab is still aligned, but the "working" object pointer is not. This would break the assumption above that a full nibble is available for the PGF_CACHENUM_MASK. The following patch reduces PGF_CACHENUM_MASK to cover only the two least significant bits, which is enough to cover the current number of 4 pgtable cache types. Then use this constant to mask out the appropriate part of the huge pte pointer. Signed-off-by: Adam Litke Signed-off-by: Andrew Morton Signed-off-by: Paul Mackerras --- arch/powerpc/mm/hugetlbpage.c | 2 +- include/asm-powerpc/pgalloc.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c index 266b8b2ceac9..5615acc29527 100644 --- a/arch/powerpc/mm/hugetlbpage.c +++ b/arch/powerpc/mm/hugetlbpage.c @@ -153,7 +153,7 @@ static void free_hugepte_range(struct mmu_gather *tlb, hugepd_t *hpdp) hpdp->pd = 0; tlb->need_flush = 1; pgtable_free_tlb(tlb, pgtable_free_cache(hugepte, HUGEPTE_CACHE_NUM, - HUGEPTE_TABLE_SIZE-1)); + PGF_CACHENUM_MASK)); } #ifdef CONFIG_PPC_64K_PAGES diff --git a/include/asm-powerpc/pgalloc.h b/include/asm-powerpc/pgalloc.h index 9f0917c68659..ae63db7b3e7d 100644 --- a/include/asm-powerpc/pgalloc.h +++ b/include/asm-powerpc/pgalloc.h @@ -117,7 +117,7 @@ static inline void pte_free(struct page *ptepage) pte_free_kernel(page_address(ptepage)); } -#define PGF_CACHENUM_MASK 0xf +#define PGF_CACHENUM_MASK 0x3 typedef struct pgtable_free { unsigned long val; From cb958186ed543d1a4f074ceb1c783fe8b0908437 Mon Sep 17 00:00:00 2001 From: Eric Sesterhenn Date: Sat, 19 Aug 2006 19:37:57 +0200 Subject: [PATCH 284/488] [PATCH] Signedness issue in drivers/net/3c515.c while playing with gcc 4.1 -Wextra warnings, I came across this one: drivers/net/3c515.c:1027: warning: comparison of unsigned expression >= 0 is always true Since i is unsigned the >= 0 check in the for loop is always true, so we might spin there forever unless the if condition triggers. Since i is only used in this loop, this patch changes it to an integer. Signed-off-by: Eric Sesterhenn Signed-off-by: Jeff Garzik --- drivers/net/3c515.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/3c515.c b/drivers/net/3c515.c index 4532b17e40ea..aedfddf20cb3 100644 --- a/drivers/net/3c515.c +++ b/drivers/net/3c515.c @@ -1003,7 +1003,8 @@ static int corkscrew_start_xmit(struct sk_buff *skb, /* Calculate the next Tx descriptor entry. */ int entry = vp->cur_tx % TX_RING_SIZE; struct boom_tx_desc *prev_entry; - unsigned long flags, i; + unsigned long flags; + int i; if (vp->tx_full) /* No room to transmit with */ return 1; From 9a469abe9c6bab3ce237ee433541931bbd827faf Mon Sep 17 00:00:00 2001 From: Joerg Ahrens Date: Sun, 20 Aug 2006 21:51:57 +0100 Subject: [PATCH 285/488] [PATCH] xirc2ps_cs: Cannot reset card in atomic context I am using a Xircom CEM33 pcmcia NIC which has occasional hardware problems. If the netdev watchdog detects a transmit timeout, do_reset is called which msleeps - this is illegal in atomic context. This patch schedules the timeout handling as a workqueue item. Signed-off-by: Daniel Drake Signed-off-by: Jeff Garzik --- drivers/net/pcmcia/xirc2ps_cs.c | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) diff --git a/drivers/net/pcmcia/xirc2ps_cs.c b/drivers/net/pcmcia/xirc2ps_cs.c index 9bae77ce1314..4122bb46f5ff 100644 --- a/drivers/net/pcmcia/xirc2ps_cs.c +++ b/drivers/net/pcmcia/xirc2ps_cs.c @@ -345,6 +345,7 @@ typedef struct local_info_t { void __iomem *dingo_ccr; /* only used for CEM56 cards */ unsigned last_ptr_value; /* last packets transmitted value */ const char *manf_str; + struct work_struct tx_timeout_task; } local_info_t; /**************** @@ -352,6 +353,7 @@ typedef struct local_info_t { */ static int do_start_xmit(struct sk_buff *skb, struct net_device *dev); static void do_tx_timeout(struct net_device *dev); +static void xirc2ps_tx_timeout_task(void *data); static struct net_device_stats *do_get_stats(struct net_device *dev); static void set_addresses(struct net_device *dev); static void set_multicast_list(struct net_device *dev); @@ -589,6 +591,7 @@ xirc2ps_probe(struct pcmcia_device *link) #ifdef HAVE_TX_TIMEOUT dev->tx_timeout = do_tx_timeout; dev->watchdog_timeo = TX_TIMEOUT; + INIT_WORK(&local->tx_timeout_task, xirc2ps_tx_timeout_task, dev); #endif return xirc2ps_config(link); @@ -1341,17 +1344,24 @@ xirc2ps_interrupt(int irq, void *dev_id, struct pt_regs *regs) /*====================================================================*/ static void -do_tx_timeout(struct net_device *dev) +xirc2ps_tx_timeout_task(void *data) { - local_info_t *lp = netdev_priv(dev); - printk(KERN_NOTICE "%s: transmit timed out\n", dev->name); - lp->stats.tx_errors++; + struct net_device *dev = data; /* reset the card */ do_reset(dev,1); dev->trans_start = jiffies; netif_wake_queue(dev); } +static void +do_tx_timeout(struct net_device *dev) +{ + local_info_t *lp = netdev_priv(dev); + lp->stats.tx_errors++; + printk(KERN_NOTICE "%s: transmit timed out\n", dev->name); + schedule_work(&lp->tx_timeout_task); +} + static int do_start_xmit(struct sk_buff *skb, struct net_device *dev) { From 8d91626636ed9ce8b742edb52ae48f2faefd5864 Mon Sep 17 00:00:00 2001 From: Don Fry Date: Tue, 22 Aug 2006 10:22:37 -0700 Subject: [PATCH 286/488] [PATCH] pcnet32: break in 2.6.18-rc1 identified A change I made for 2.6.17 and another for 2.6.18 do not work on older pcnet32 chips which I do not have access to. If the chip is a 79C970 or 79C965, do not try and suspend or check the link status. I have tested with a 79C970A, 79C971, 79C972, 79C973, 79C975, 79C976, and 79C978. Signed-off-by: Don Fry Signed-off-by: Jeff Garzik --- drivers/net/pcnet32.c | 25 +++++++++++++++++-------- 1 file changed, 17 insertions(+), 8 deletions(-) diff --git a/drivers/net/pcnet32.c b/drivers/net/pcnet32.c index 4daafe303358..d50bcb89dd28 100644 --- a/drivers/net/pcnet32.c +++ b/drivers/net/pcnet32.c @@ -202,6 +202,8 @@ static int homepna[MAX_UNITS]; #define CSR15 15 #define PCNET32_MC_FILTER 8 +#define PCNET32_79C970A 0x2621 + /* The PCNET32 Rx and Tx ring descriptors. */ struct pcnet32_rx_head { u32 base; @@ -289,6 +291,7 @@ struct pcnet32_private { /* each bit indicates an available PHY */ u32 phymask; + unsigned short chip_version; /* which variant this is */ }; static int pcnet32_probe_pci(struct pci_dev *, const struct pci_device_id *); @@ -724,9 +727,11 @@ static u32 pcnet32_get_link(struct net_device *dev) spin_lock_irqsave(&lp->lock, flags); if (lp->mii) { r = mii_link_ok(&lp->mii_if); - } else { + } else if (lp->chip_version >= PCNET32_79C970A) { ulong ioaddr = dev->base_addr; /* card base I/O address */ r = (lp->a.read_bcr(ioaddr, 4) != 0xc0); + } else { /* can not detect link on really old chips */ + r = 1; } spin_unlock_irqrestore(&lp->lock, flags); @@ -1091,6 +1096,10 @@ static int pcnet32_suspend(struct net_device *dev, unsigned long *flags, ulong ioaddr = dev->base_addr; int ticks; + /* really old chips have to be stopped. */ + if (lp->chip_version < PCNET32_79C970A) + return 0; + /* set SUSPEND (SPND) - CSR5 bit 0 */ csr5 = a->read_csr(ioaddr, CSR5); a->write_csr(ioaddr, CSR5, csr5 | CSR5_SUSPEND); @@ -1529,6 +1538,7 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev) lp->mii_if.reg_num_mask = 0x1f; lp->dxsuflo = dxsuflo; lp->mii = mii; + lp->chip_version = chip_version; lp->msg_enable = pcnet32_debug; if ((cards_found >= MAX_UNITS) || (options[cards_found] > sizeof(options_mapping))) @@ -1839,10 +1849,7 @@ static int pcnet32_open(struct net_device *dev) val |= 2; } else if (lp->options & PCNET32_PORT_ASEL) { /* workaround of xSeries250, turn on for 79C975 only */ - i = ((lp->a.read_csr(ioaddr, 88) | - (lp->a. - read_csr(ioaddr, 89) << 16)) >> 12) & 0xffff; - if (i == 0x2627) + if (lp->chip_version == 0x2627) val |= 3; } lp->a.write_bcr(ioaddr, 9, val); @@ -1986,9 +1993,11 @@ static int pcnet32_open(struct net_device *dev) netif_start_queue(dev); - /* Print the link status and start the watchdog */ - pcnet32_check_media(dev, 1); - mod_timer(&(lp->watchdog_timer), PCNET32_WATCHDOG_TIMEOUT); + if (lp->chip_version >= PCNET32_79C970A) { + /* Print the link status and start the watchdog */ + pcnet32_check_media(dev, 1); + mod_timer(&(lp->watchdog_timer), PCNET32_WATCHDOG_TIMEOUT); + } i = 0; while (i++ < 100) From c5ab964debe92d0ec7af330f350a3433c1b5b61e Mon Sep 17 00:00:00 2001 From: Richard Purdie Date: Tue, 22 Aug 2006 18:55:44 +0100 Subject: [PATCH 287/488] [PATCH] spectrum_cs: Fix firmware uploading errors spectrum_cs: Fix the logic so we error when the device is *not* present! This fixes firmware upload failures which prevent the driver from working (the bug is also present in 2.6.17). Signed-off-by: Richard Purdie Signed-off-by: Jeff Garzik --- drivers/net/wireless/spectrum_cs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/spectrum_cs.c b/drivers/net/wireless/spectrum_cs.c index 7f78b7801fb3..bcc7038130f6 100644 --- a/drivers/net/wireless/spectrum_cs.c +++ b/drivers/net/wireless/spectrum_cs.c @@ -242,7 +242,7 @@ spectrum_reset(struct pcmcia_device *link, int idle) u_int save_cor; /* Doing it if hardware is gone is guaranteed crash */ - if (pcmcia_dev_present(link)) + if (!pcmcia_dev_present(link)) return -ENODEV; /* Save original COR value */ From f3745a3f9fa39fa3c62f7d5b8549ee787d2c6848 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 22 Aug 2006 21:06:46 +0900 Subject: [PATCH 288/488] [PATCH] ata_piix: ignore PCS on ICH5 There have been a number of reports regarding some ICH5s failing to detect devices since the PCS handling update. Analysis shows that these problems are caused by bogus PCS values from those controllers. Before the PCS update, the driver didn't honor PCS regs exactly and probed them in many cases PCS reports no device. Now that PCS is honored exactly, these hardware problems are visible. This patch makes ICH5 ignore PCS. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/scsi/ata_piix.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/ata_piix.c b/drivers/scsi/ata_piix.c index 01b3530cf6df..3b98f1813356 100644 --- a/drivers/scsi/ata_piix.c +++ b/drivers/scsi/ata_piix.c @@ -390,7 +390,8 @@ static struct ata_port_info piix_port_info[] = { /* ich5_sata */ { .sht = &piix_sht, - .host_flags = ATA_FLAG_SATA | PIIX_FLAG_CHECKINTR, + .host_flags = ATA_FLAG_SATA | PIIX_FLAG_CHECKINTR | + PIIX_FLAG_IGNORE_PCS, .pio_mask = 0x1f, /* pio0-4 */ .mwdma_mask = 0x07, /* mwdma0-2 */ .udma_mask = 0x7f, /* udma0-6 */ From 9dd9c16465c82d1385f97d2a245641464fcb7894 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 22 Aug 2006 21:15:58 +0900 Subject: [PATCH 289/488] [PATCH] ata_piix: implement force_pcs module parameter This patch implements force_pcs module parameter for ata_piix. If 1, PCS is ignored, 2 honored. As there seem to be quite a few ICHs w/ impaired PCS, this option will be useful for cases where the default setting doesn't work. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/scsi/ata_piix.c | 21 ++++++++++++++++++++- 1 file changed, 20 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/ata_piix.c b/drivers/scsi/ata_piix.c index 3b98f1813356..2d20caf377f5 100644 --- a/drivers/scsi/ata_piix.c +++ b/drivers/scsi/ata_piix.c @@ -468,6 +468,11 @@ MODULE_LICENSE("GPL"); MODULE_DEVICE_TABLE(pci, piix_pci_tbl); MODULE_VERSION(DRV_VERSION); +static int force_pcs = 0; +module_param(force_pcs, int, 0444); +MODULE_PARM_DESC(force_pcs, "force honoring or ignoring PCS to work around " + "device mis-detection (0=default, 1=ignore PCS, 2=honor PCS)"); + /** * piix_pata_cbl_detect - Probe host controller cable detect info * @ap: Port for which cable detect info is desired @@ -812,6 +817,7 @@ static int __devinit piix_check_450nx_errata(struct pci_dev *ata_dev) } static void __devinit piix_init_pcs(struct pci_dev *pdev, + struct ata_port_info *pinfo, const struct piix_map_db *map_db) { u16 pcs, new_pcs; @@ -825,6 +831,18 @@ static void __devinit piix_init_pcs(struct pci_dev *pdev, pci_write_config_word(pdev, ICH5_PCS, new_pcs); msleep(150); } + + if (force_pcs == 1) { + dev_printk(KERN_INFO, &pdev->dev, + "force ignoring PCS (0x%x)\n", new_pcs); + pinfo[0].host_flags |= PIIX_FLAG_IGNORE_PCS; + pinfo[1].host_flags |= PIIX_FLAG_IGNORE_PCS; + } else if (force_pcs == 2) { + dev_printk(KERN_INFO, &pdev->dev, + "force honoring PCS (0x%x)\n", new_pcs); + pinfo[0].host_flags &= ~PIIX_FLAG_IGNORE_PCS; + pinfo[1].host_flags &= ~PIIX_FLAG_IGNORE_PCS; + } } static void __devinit piix_init_sata_map(struct pci_dev *pdev, @@ -933,7 +951,8 @@ static int piix_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) if (host_flags & ATA_FLAG_SATA) { piix_init_sata_map(pdev, port_info, piix_map_db_table[ent->driver_data]); - piix_init_pcs(pdev, piix_map_db_table[ent->driver_data]); + piix_init_pcs(pdev, port_info, + piix_map_db_table[ent->driver_data]); } /* On ICH5, some BIOSen disable the interrupt using the From ac2164d5e425fa4755bdbab9641d8dab7239b6f5 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 23 Aug 2006 01:00:27 +0900 Subject: [PATCH 290/488] [PATCH] sata_via: use old SCR access pattern on vt6420 vt6420 has super-fragile SCR registers which can hang the whole machine if accessed with the wrong timings. This patch makes sata_via use SCR registers only during probing and with the same timings as before (pre new EH), which is proven to work. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/scsi/sata_via.c | 117 ++++++++++++++++++++++++++++++++++++++-- 1 file changed, 112 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/sata_via.c b/drivers/scsi/sata_via.c index 03baec2191bf..01d40369a8a5 100644 --- a/drivers/scsi/sata_via.c +++ b/drivers/scsi/sata_via.c @@ -74,6 +74,7 @@ enum { static int svia_init_one (struct pci_dev *pdev, const struct pci_device_id *ent); static u32 svia_scr_read (struct ata_port *ap, unsigned int sc_reg); static void svia_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val); +static void vt6420_error_handler(struct ata_port *ap); static const struct pci_device_id svia_pci_tbl[] = { { 0x1106, 0x3149, PCI_ANY_ID, PCI_ANY_ID, 0, 0, vt6420 }, @@ -107,7 +108,38 @@ static struct scsi_host_template svia_sht = { .bios_param = ata_std_bios_param, }; -static const struct ata_port_operations svia_sata_ops = { +static const struct ata_port_operations vt6420_sata_ops = { + .port_disable = ata_port_disable, + + .tf_load = ata_tf_load, + .tf_read = ata_tf_read, + .check_status = ata_check_status, + .exec_command = ata_exec_command, + .dev_select = ata_std_dev_select, + + .bmdma_setup = ata_bmdma_setup, + .bmdma_start = ata_bmdma_start, + .bmdma_stop = ata_bmdma_stop, + .bmdma_status = ata_bmdma_status, + + .qc_prep = ata_qc_prep, + .qc_issue = ata_qc_issue_prot, + .data_xfer = ata_pio_data_xfer, + + .freeze = ata_bmdma_freeze, + .thaw = ata_bmdma_thaw, + .error_handler = vt6420_error_handler, + .post_internal_cmd = ata_bmdma_post_internal_cmd, + + .irq_handler = ata_interrupt, + .irq_clear = ata_bmdma_irq_clear, + + .port_start = ata_port_start, + .port_stop = ata_port_stop, + .host_stop = ata_host_stop, +}; + +static const struct ata_port_operations vt6421_sata_ops = { .port_disable = ata_port_disable, .tf_load = ata_tf_load, @@ -141,13 +173,13 @@ static const struct ata_port_operations svia_sata_ops = { .host_stop = ata_host_stop, }; -static struct ata_port_info svia_port_info = { +static struct ata_port_info vt6420_port_info = { .sht = &svia_sht, .host_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY, .pio_mask = 0x1f, .mwdma_mask = 0x07, .udma_mask = 0x7f, - .port_ops = &svia_sata_ops, + .port_ops = &vt6420_sata_ops, }; MODULE_AUTHOR("Jeff Garzik"); @@ -170,6 +202,81 @@ static void svia_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val) outl(val, ap->ioaddr.scr_addr + (4 * sc_reg)); } +/** + * vt6420_prereset - prereset for vt6420 + * @ap: target ATA port + * + * SCR registers on vt6420 are pieces of shit and may hang the + * whole machine completely if accessed with the wrong timing. + * To avoid such catastrophe, vt6420 doesn't provide generic SCR + * access operations, but uses SStatus and SControl only during + * boot probing in controlled way. + * + * As the old (pre EH update) probing code is proven to work, we + * strictly follow the access pattern. + * + * LOCKING: + * Kernel thread context (may sleep) + * + * RETURNS: + * 0 on success, -errno otherwise. + */ +static int vt6420_prereset(struct ata_port *ap) +{ + struct ata_eh_context *ehc = &ap->eh_context; + unsigned long timeout = jiffies + (HZ * 5); + u32 sstatus, scontrol; + int online; + + /* don't do any SCR stuff if we're not loading */ + if (!ATA_PFLAG_LOADING) + goto skip_scr; + + /* Resume phy. This is the old resume sequence from + * __sata_phy_reset(). + */ + svia_scr_write(ap, SCR_CONTROL, 0x300); + svia_scr_read(ap, SCR_CONTROL); /* flush */ + + /* wait for phy to become ready, if necessary */ + do { + msleep(200); + if ((svia_scr_read(ap, SCR_STATUS) & 0xf) != 1) + break; + } while (time_before(jiffies, timeout)); + + /* open code sata_print_link_status() */ + sstatus = svia_scr_read(ap, SCR_STATUS); + scontrol = svia_scr_read(ap, SCR_CONTROL); + + online = (sstatus & 0xf) == 0x3; + + ata_port_printk(ap, KERN_INFO, + "SATA link %s 1.5 Gbps (SStatus %X SControl %X)\n", + online ? "up" : "down", sstatus, scontrol); + + /* SStatus is read one more time */ + svia_scr_read(ap, SCR_STATUS); + + if (!online) { + /* tell EH to bail */ + ehc->i.action &= ~ATA_EH_RESET_MASK; + return 0; + } + + skip_scr: + /* wait for !BSY */ + ata_busy_sleep(ap, ATA_TMOUT_BOOT_QUICK, ATA_TMOUT_BOOT); + + return 0; +} + +static void vt6420_error_handler(struct ata_port *ap) +{ + return ata_bmdma_drive_eh(ap, vt6420_prereset, ata_std_softreset, + NULL, ata_std_postreset); +} + static const unsigned int svia_bar_sizes[] = { 8, 4, 8, 4, 16, 256 }; @@ -210,7 +317,7 @@ static void vt6421_init_addrs(struct ata_probe_ent *probe_ent, static struct ata_probe_ent *vt6420_init_probe_ent(struct pci_dev *pdev) { struct ata_probe_ent *probe_ent; - struct ata_port_info *ppi = &svia_port_info; + struct ata_port_info *ppi = &vt6420_port_info; probe_ent = ata_pci_init_native_mode(pdev, &ppi, ATA_PORT_PRIMARY | ATA_PORT_SECONDARY); if (!probe_ent) @@ -239,7 +346,7 @@ static struct ata_probe_ent *vt6421_init_probe_ent(struct pci_dev *pdev) probe_ent->sht = &svia_sht; probe_ent->host_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY; - probe_ent->port_ops = &svia_sata_ops; + probe_ent->port_ops = &vt6421_sata_ops; probe_ent->n_ports = N_PORTS; probe_ent->irq = pdev->irq; probe_ent->irq_flags = IRQF_SHARED; From 8e79a441a4d8a34d64efe93add49b3eefca5cd1c Mon Sep 17 00:00:00 2001 From: Horst Hummel Date: Thu, 24 Aug 2006 13:22:36 +0200 Subject: [PATCH 291/488] [S390] dasd PAV enabling. The subsystem check in the PAV code is incorrect, it enables PAV per device instead of per subsystem. Signed-off-by: Horst Hummel Signed-off-by: Martin Schwidefsky --- drivers/s390/block/dasd_devmap.c | 8 ++++---- drivers/s390/block/dasd_eckd.c | 14 +++++++------- 2 files changed, 11 insertions(+), 11 deletions(-) diff --git a/drivers/s390/block/dasd_devmap.c b/drivers/s390/block/dasd_devmap.c index 9d0c6e1a0e66..9af02c79ce8a 100644 --- a/drivers/s390/block/dasd_devmap.c +++ b/drivers/s390/block/dasd_devmap.c @@ -54,11 +54,11 @@ struct dasd_devmap { */ struct dasd_server_ssid_map { struct list_head list; - struct server_id { + struct system_id { char vendor[4]; char serial[15]; + __u16 ssid; } sid; - __u16 ssid; }; static struct list_head dasd_server_ssid_list; @@ -904,14 +904,14 @@ dasd_set_uid(struct ccw_device *cdev, struct dasd_uid *uid) return -ENOMEM; strncpy(srv->sid.vendor, uid->vendor, sizeof(srv->sid.vendor) - 1); strncpy(srv->sid.serial, uid->serial, sizeof(srv->sid.serial) - 1); - srv->ssid = uid->ssid; + srv->sid.ssid = uid->ssid; /* server is already contained ? */ spin_lock(&dasd_devmap_lock); devmap->uid = *uid; list_for_each_entry(tmp, &dasd_server_ssid_list, list) { if (!memcmp(&srv->sid, &tmp->sid, - sizeof(struct dasd_server_ssid_map))) { + sizeof(struct system_id))) { kfree(srv); srv = NULL; break; diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index 957ed5db98e4..b7a7fac3f7c3 100644 --- a/drivers/s390/block/dasd_eckd.c +++ b/drivers/s390/block/dasd_eckd.c @@ -607,7 +607,7 @@ dasd_eckd_psf_ssc(struct dasd_device *device) * Valide storage server of current device. */ static int -dasd_eckd_validate_server(struct dasd_device *device) +dasd_eckd_validate_server(struct dasd_device *device, struct dasd_uid *uid) { int rc; @@ -616,11 +616,11 @@ dasd_eckd_validate_server(struct dasd_device *device) return 0; rc = dasd_eckd_psf_ssc(device); - if (rc) - /* may be requested feature is not available on server, - * therefore just report error and go ahead */ - DEV_MESSAGE(KERN_INFO, device, - "Perform Subsystem Function returned rc=%d", rc); + /* may be requested feature is not available on server, + * therefore just report error and go ahead */ + DEV_MESSAGE(KERN_INFO, device, + "PSF-SSC on storage subsystem %s.%s.%04x returned rc=%d", + uid->vendor, uid->serial, uid->ssid, rc); /* RE-Read Configuration Data */ return dasd_eckd_read_conf(device); } @@ -666,7 +666,7 @@ dasd_eckd_check_characteristics(struct dasd_device *device) return rc; rc = dasd_set_uid(device->cdev, &uid); if (rc == 1) /* new server found */ - rc = dasd_eckd_validate_server(device); + rc = dasd_eckd_validate_server(device, &uid); if (rc) return rc; From a813213d73bb29d6986c3e93669a9cd5f7984364 Mon Sep 17 00:00:00 2001 From: Paul Jackson Date: Mon, 14 Aug 2006 22:45:49 -0700 Subject: [PATCH 292/488] [IA64] panic if topology_init kzalloc fails There really is no sense trying to continue if the kzalloc of sysfs_cpus[] fails in ia64 topology_init. The code calling into here doesn't check errors very well, and one ends up with a nonobvious boot failure that wastes peoples time debugging. See for example the lkml thread at: http://lkml.org/lkml/2006/3/2/215 Since the system is totally dead when this kzalloc fails, not having yet even booted, might as well announce one's death boldly and plainly. Signed-off-by: Paul Jackson Signed-off-by: Andrew Morton Signed-off-by: Tony Luck --- arch/ia64/kernel/topology.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/arch/ia64/kernel/topology.c b/arch/ia64/kernel/topology.c index d24fa393b182..f648c610b10c 100644 --- a/arch/ia64/kernel/topology.c +++ b/arch/ia64/kernel/topology.c @@ -67,10 +67,8 @@ static int __init topology_init(void) #endif sysfs_cpus = kzalloc(sizeof(struct ia64_cpu) * NR_CPUS, GFP_KERNEL); - if (!sysfs_cpus) { - err = -ENOMEM; - goto out; - } + if (!sysfs_cpus) + panic("kzalloc in topology_init failed - NR_CPUS too big?"); for_each_present_cpu(i) { if((err = arch_register_cpu(i))) From ddeff520f02b92128132c282c350fa72afffb84a Mon Sep 17 00:00:00 2001 From: Nikita Danilov Date: Wed, 9 Aug 2006 13:53:47 -0400 Subject: [PATCH 293/488] NFS: Fix a potential deadlock in nfs_release_page nfs_wb_page() waits on request completion and, as a result, is not safe to be called from nfs_release_page() invoked by VM scanner as part of GFP_NOFS allocation. Fix possible deadlock by analyzing gfp mask and refusing to release page if __GFP_FS is not set. Signed-off-by: Nikita Danilov Signed-off-by: Trond Myklebust (cherry picked from 374d969debfb290bafcb41d28918dc6f7e43ce31 commit) --- fs/nfs/file.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/fs/nfs/file.c b/fs/nfs/file.c index cc2b874ad5a4..48e892880d5b 100644 --- a/fs/nfs/file.c +++ b/fs/nfs/file.c @@ -312,7 +312,13 @@ static void nfs_invalidate_page(struct page *page, unsigned long offset) static int nfs_release_page(struct page *page, gfp_t gfp) { - return !nfs_wb_page(page->mapping->host, page); + if (gfp & __GFP_FS) + return !nfs_wb_page(page->mapping->host, page); + else + /* + * Avoid deadlock on nfs_wait_on_request(). + */ + return 0; } const struct address_space_operations nfs_file_aops = { From a634904a7de0d3a0bc606f608007a34e8c05bfee Mon Sep 17 00:00:00 2001 From: ASANO Masahiro Date: Tue, 22 Aug 2006 20:06:02 -0400 Subject: [PATCH 294/488] VFS: add lookup hint for network file systems I'm trying to speeding up mkdir(2) for network file systems. A typical mkdir(2) calls two inode_operations: lookup and mkdir. The lookup operation would fail with ENOENT in common case. I think it is unnecessary because the subsequent mkdir operation can check it. In case of creat(2), lookup operation is called with the LOOKUP_CREATE flag, so individual filesystem can omit real lookup. e.g. nfs_lookup(). Here is a sample patch which uses LOOKUP_CREATE and O_EXCL on mkdir, symlink and mknod. This uses the gadget for creat(2). And here is the result of a benchmark on NFSv3. mkdir(2) 10,000 times: original 50.5 sec patched 29.0 sec Signed-off-by: ASANO Masahiro Signed-off-by: Andrew Morton Signed-off-by: Trond Myklebust (cherry picked from fab7bf44449b29f9d5572a5dd8adcf7c91d5bf0f commit) --- fs/namei.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/namei.c b/fs/namei.c index 55a131230f94..863166441bf3 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -1767,6 +1767,8 @@ struct dentry *lookup_create(struct nameidata *nd, int is_dir) if (nd->last_type != LAST_NORM) goto fail; nd->flags &= ~LOOKUP_PARENT; + nd->flags |= LOOKUP_CREATE; + nd->intent.open.flags = O_EXCL; /* * Do the final lookup. From 5d67476fff2df6ff12f60b540fd0e74cf2a668f9 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Mon, 31 Jul 2006 14:11:48 -0700 Subject: [PATCH 295/488] SUNRPC: make rpc_unlink() take a dentry argument instead of a path Signe-off-by: Trond Myklebust (cherry picked from 88bf6d811b01a4be7fd507d18bf5f1c527989089 commit) --- fs/nfs/idmap.c | 3 +-- include/linux/sunrpc/rpc_pipe_fs.h | 2 +- net/sunrpc/auth_gss/auth_gss.c | 2 +- net/sunrpc/rpc_pipe.c | 20 ++++++-------------- 4 files changed, 9 insertions(+), 18 deletions(-) diff --git a/fs/nfs/idmap.c b/fs/nfs/idmap.c index b81e7ed3c902..df0be1214358 100644 --- a/fs/nfs/idmap.c +++ b/fs/nfs/idmap.c @@ -130,9 +130,8 @@ nfs_idmap_delete(struct nfs4_client *clp) if (!idmap) return; + rpc_unlink(idmap->idmap_dentry); dput(idmap->idmap_dentry); - idmap->idmap_dentry = NULL; - rpc_unlink(idmap->idmap_path); clp->cl_idmap = NULL; kfree(idmap); } diff --git a/include/linux/sunrpc/rpc_pipe_fs.h b/include/linux/sunrpc/rpc_pipe_fs.h index 2c2189cb30aa..04d2767d5ef7 100644 --- a/include/linux/sunrpc/rpc_pipe_fs.h +++ b/include/linux/sunrpc/rpc_pipe_fs.h @@ -44,7 +44,7 @@ extern int rpc_queue_upcall(struct inode *, struct rpc_pipe_msg *); extern struct dentry *rpc_mkdir(char *, struct rpc_clnt *); extern int rpc_rmdir(char *); extern struct dentry *rpc_mkpipe(char *, void *, struct rpc_pipe_ops *, int flags); -extern int rpc_unlink(char *); +extern int rpc_unlink(struct dentry *); extern struct vfsmount *rpc_get_mount(void); extern void rpc_put_mount(void); diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c index 4a9aa9393b97..beaa7b848246 100644 --- a/net/sunrpc/auth_gss/auth_gss.c +++ b/net/sunrpc/auth_gss/auth_gss.c @@ -718,7 +718,7 @@ gss_destroy(struct rpc_auth *auth) auth, auth->au_flavor); gss_auth = container_of(auth, struct gss_auth, rpc_auth); - rpc_unlink(gss_auth->path); + rpc_unlink(gss_auth->dentry); dput(gss_auth->dentry); gss_auth->dentry = NULL; gss_mech_put(gss_auth->mech); diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c index a3bd2db2e024..9144f2767b66 100644 --- a/net/sunrpc/rpc_pipe.c +++ b/net/sunrpc/rpc_pipe.c @@ -746,22 +746,15 @@ err_dput: } int -rpc_unlink(char *path) +rpc_unlink(struct dentry *dentry) { - struct nameidata nd; - struct dentry *dentry; + struct dentry *parent; struct inode *dir; - int error; + int error = 0; - if ((error = rpc_lookup_parent(path, &nd)) != 0) - return error; - dir = nd.dentry->d_inode; + parent = dget_parent(dentry); + dir = parent->d_inode; mutex_lock_nested(&dir->i_mutex, I_MUTEX_PARENT); - dentry = lookup_one_len(nd.last.name, nd.dentry, nd.last.len); - if (IS_ERR(dentry)) { - error = PTR_ERR(dentry); - goto out_release; - } d_drop(dentry); if (dentry->d_inode) { rpc_close_pipes(dentry->d_inode); @@ -769,9 +762,8 @@ rpc_unlink(char *path) } dput(dentry); inode_dir_notify(dir, DN_DELETE); -out_release: mutex_unlock(&dir->i_mutex); - rpc_release_path(&nd); + dput(parent); return error; } From dff02cc1a34fcb60904a2c57cb351857cc11219e Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Mon, 31 Jul 2006 14:17:18 -0700 Subject: [PATCH 296/488] NFS: clean up rpc_rmdir Make it take a dentry argument instead of a path Signed-off-by: Trond Myklebust (cherry picked from 648d4116eb2509f010f7f34704a650150309b3e7 commit) --- include/linux/sunrpc/rpc_pipe_fs.h | 2 +- net/sunrpc/clnt.c | 6 +++--- net/sunrpc/rpc_pipe.c | 18 +++++------------- 3 files changed, 9 insertions(+), 17 deletions(-) diff --git a/include/linux/sunrpc/rpc_pipe_fs.h b/include/linux/sunrpc/rpc_pipe_fs.h index 04d2767d5ef7..a481472c9484 100644 --- a/include/linux/sunrpc/rpc_pipe_fs.h +++ b/include/linux/sunrpc/rpc_pipe_fs.h @@ -42,7 +42,7 @@ RPC_I(struct inode *inode) extern int rpc_queue_upcall(struct inode *, struct rpc_pipe_msg *); extern struct dentry *rpc_mkdir(char *, struct rpc_clnt *); -extern int rpc_rmdir(char *); +extern int rpc_rmdir(struct dentry *); extern struct dentry *rpc_mkpipe(char *, void *, struct rpc_pipe_ops *, int flags); extern int rpc_unlink(struct dentry *); extern struct vfsmount *rpc_get_mount(void); diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c index d6409e757219..d307556872db 100644 --- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -183,7 +183,7 @@ rpc_new_client(struct rpc_xprt *xprt, char *servname, out_no_auth: if (!IS_ERR(clnt->cl_dentry)) { - rpc_rmdir(clnt->cl_pathname); + rpc_rmdir(clnt->cl_dentry); dput(clnt->cl_dentry); rpc_put_mount(); } @@ -320,8 +320,8 @@ rpc_destroy_client(struct rpc_clnt *clnt) rpc_destroy_client(clnt->cl_parent); goto out_free; } - if (clnt->cl_pathname[0]) - rpc_rmdir(clnt->cl_pathname); + if (!IS_ERR(clnt->cl_dentry)) + rpc_rmdir(clnt->cl_dentry); if (clnt->cl_xprt) { xprt_destroy(clnt->cl_xprt); clnt->cl_xprt = NULL; diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c index 9144f2767b66..9c355e1ae61a 100644 --- a/net/sunrpc/rpc_pipe.c +++ b/net/sunrpc/rpc_pipe.c @@ -684,28 +684,20 @@ err_dput: } int -rpc_rmdir(char *path) +rpc_rmdir(struct dentry *dentry) { - struct nameidata nd; - struct dentry *dentry; + struct dentry *parent; struct inode *dir; int error; - if ((error = rpc_lookup_parent(path, &nd)) != 0) - return error; - dir = nd.dentry->d_inode; + parent = dget_parent(dentry); + dir = parent->d_inode; mutex_lock_nested(&dir->i_mutex, I_MUTEX_PARENT); - dentry = lookup_one_len(nd.last.name, nd.dentry, nd.last.len); - if (IS_ERR(dentry)) { - error = PTR_ERR(dentry); - goto out_release; - } rpc_depopulate(dentry); error = __rpc_rmdir(dir, dentry); dput(dentry); -out_release: mutex_unlock(&dir->i_mutex); - rpc_release_path(&nd); + dput(parent); return error; } From 68adb0af51ebccb72ffb14d49cb8121b1afc4259 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Thu, 10 Aug 2006 17:51:46 -0400 Subject: [PATCH 297/488] SUNRPC: rpc_unlink() must check for unhashed dentries A prior call to rpc_depopulate() by rpc_rmdir() on the parent directory may have already called simple_unlink() on this entry. Add the same check to rpc_rmdir(). Also remove a redundant call to rpc_close_pipes() in rpc_rmdir. Signed-off-by: Trond Myklebust (cherry picked from 0bbfb9d20f6437c4031aa3bf9b4d311a053e58e3 commit) --- net/sunrpc/rpc_pipe.c | 17 ++++++++++------- 1 file changed, 10 insertions(+), 7 deletions(-) diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c index 9c355e1ae61a..0b1a1ac8a4bc 100644 --- a/net/sunrpc/rpc_pipe.c +++ b/net/sunrpc/rpc_pipe.c @@ -539,6 +539,7 @@ repeat: rpc_close_pipes(dentry->d_inode); simple_unlink(dir, dentry); } + inode_dir_notify(dir, DN_DELETE); dput(dentry); } while (n); goto repeat; @@ -610,8 +611,8 @@ __rpc_rmdir(struct inode *dir, struct dentry *dentry) int error; shrink_dcache_parent(dentry); - if (dentry->d_inode) - rpc_close_pipes(dentry->d_inode); + if (d_unhashed(dentry)) + return 0; if ((error = simple_rmdir(dir, dentry)) != 0) return error; if (!error) { @@ -747,13 +748,15 @@ rpc_unlink(struct dentry *dentry) parent = dget_parent(dentry); dir = parent->d_inode; mutex_lock_nested(&dir->i_mutex, I_MUTEX_PARENT); - d_drop(dentry); - if (dentry->d_inode) { - rpc_close_pipes(dentry->d_inode); - error = simple_unlink(dir, dentry); + if (!d_unhashed(dentry)) { + d_drop(dentry); + if (dentry->d_inode) { + rpc_close_pipes(dentry->d_inode); + error = simple_unlink(dir, dentry); + } + inode_dir_notify(dir, DN_DELETE); } dput(dentry); - inode_dir_notify(dir, DN_DELETE); mutex_unlock(&dir->i_mutex); dput(parent); return error; From 8f8e7a50f450fcb86a5b2ffb94543c57a14f8260 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Mon, 14 Aug 2006 13:11:15 -0400 Subject: [PATCH 298/488] SUNRPC: Fix dentry refcounting issues with users of rpc_pipefs rpc_unlink() and rpc_rmdir() will dput the dentry reference for you. Signed-off-by: Trond Myklebust (cherry picked from a05a57effa71a1f67ccbfc52335c10c8b85f3f6a commit) --- fs/nfs/idmap.c | 1 - net/sunrpc/auth_gss/auth_gss.c | 1 - net/sunrpc/clnt.c | 15 ++++++--------- 3 files changed, 6 insertions(+), 11 deletions(-) diff --git a/fs/nfs/idmap.c b/fs/nfs/idmap.c index df0be1214358..07a5dd57646e 100644 --- a/fs/nfs/idmap.c +++ b/fs/nfs/idmap.c @@ -131,7 +131,6 @@ nfs_idmap_delete(struct nfs4_client *clp) if (!idmap) return; rpc_unlink(idmap->idmap_dentry); - dput(idmap->idmap_dentry); clp->cl_idmap = NULL; kfree(idmap); } diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c index beaa7b848246..ef1cf5b476c8 100644 --- a/net/sunrpc/auth_gss/auth_gss.c +++ b/net/sunrpc/auth_gss/auth_gss.c @@ -719,7 +719,6 @@ gss_destroy(struct rpc_auth *auth) gss_auth = container_of(auth, struct gss_auth, rpc_auth); rpc_unlink(gss_auth->dentry); - dput(gss_auth->dentry); gss_auth->dentry = NULL; gss_mech_put(gss_auth->mech); diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c index d307556872db..d9eac7069101 100644 --- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -184,7 +184,6 @@ rpc_new_client(struct rpc_xprt *xprt, char *servname, out_no_auth: if (!IS_ERR(clnt->cl_dentry)) { rpc_rmdir(clnt->cl_dentry); - dput(clnt->cl_dentry); rpc_put_mount(); } out_no_path: @@ -251,10 +250,8 @@ rpc_clone_client(struct rpc_clnt *clnt) new->cl_autobind = 0; new->cl_oneshot = 0; new->cl_dead = 0; - if (!IS_ERR(new->cl_dentry)) { + if (!IS_ERR(new->cl_dentry)) dget(new->cl_dentry); - rpc_get_mount(); - } rpc_init_rtt(&new->cl_rtt_default, clnt->cl_xprt->timeout.to_initval); if (new->cl_auth) atomic_inc(&new->cl_auth->au_count); @@ -317,11 +314,15 @@ rpc_destroy_client(struct rpc_clnt *clnt) clnt->cl_auth = NULL; } if (clnt->cl_parent != clnt) { + if (!IS_ERR(clnt->cl_dentry)) + dput(clnt->cl_dentry); rpc_destroy_client(clnt->cl_parent); goto out_free; } - if (!IS_ERR(clnt->cl_dentry)) + if (!IS_ERR(clnt->cl_dentry)) { rpc_rmdir(clnt->cl_dentry); + rpc_put_mount(); + } if (clnt->cl_xprt) { xprt_destroy(clnt->cl_xprt); clnt->cl_xprt = NULL; @@ -331,10 +332,6 @@ rpc_destroy_client(struct rpc_clnt *clnt) out_free: rpc_free_iostats(clnt->cl_metrics); clnt->cl_metrics = NULL; - if (!IS_ERR(clnt->cl_dentry)) { - dput(clnt->cl_dentry); - rpc_put_mount(); - } kfree(clnt); return 0; } From 01df9c5e918ae5559f2d96da0143f8bfbb9e6171 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Thu, 10 Aug 2006 11:58:57 -0400 Subject: [PATCH 299/488] LOCKD: Fix a deadlock in nlm_traverse_files() nlm_traverse_files() is not allowed to hold the nlm_file_mutex while calling nlm_inspect file, since it may end up calling nlm_release_file() when releaseing the blocks. Signed-off-by: Trond Myklebust (cherry picked from e558d3cde986e04f68afe8c790ad68ef4b94587a commit) --- fs/lockd/svcsubs.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) diff --git a/fs/lockd/svcsubs.c b/fs/lockd/svcsubs.c index 2a4df9b3779a..01b4db9e5466 100644 --- a/fs/lockd/svcsubs.c +++ b/fs/lockd/svcsubs.c @@ -237,19 +237,22 @@ static int nlm_traverse_files(struct nlm_host *host, int action) { struct nlm_file *file, **fp; - int i; + int i, ret = 0; mutex_lock(&nlm_file_mutex); for (i = 0; i < FILE_NRHASH; i++) { fp = nlm_files + i; while ((file = *fp) != NULL) { + file->f_count++; + mutex_unlock(&nlm_file_mutex); + /* Traverse locks, blocks and shares of this file * and update file->f_locks count */ - if (nlm_inspect_file(host, file, action)) { - mutex_unlock(&nlm_file_mutex); - return 1; - } + if (nlm_inspect_file(host, file, action)) + ret = 1; + mutex_lock(&nlm_file_mutex); + file->f_count--; /* No more references to this file. Let go of it. */ if (!file->f_blocks && !file->f_locks && !file->f_shares && !file->f_count) { @@ -262,7 +265,7 @@ nlm_traverse_files(struct nlm_host *host, int action) } } mutex_unlock(&nlm_file_mutex); - return 0; + return ret; } /* From 79558f3610efd7928e8882b2eaca3093b283630e Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 22 Aug 2006 13:44:32 -0400 Subject: [PATCH 300/488] NFS: Fix issue with EIO on NFS read The problem is that we may be caching writes that would extend the file and create a hole in the region that we are reading. In this case, we need to detect the eof from the server, ensure that we zero out the pages that are part of the hole and mark them as up to date. Signed-off-by: Trond Myklebust (cherry picked from 856b603b01b99146918c093969b6cb1b1b0f1c01 commit) --- fs/nfs/read.c | 23 +++++++++++++++-------- 1 file changed, 15 insertions(+), 8 deletions(-) diff --git a/fs/nfs/read.c b/fs/nfs/read.c index 65c0c5b32351..da9cf11c326f 100644 --- a/fs/nfs/read.c +++ b/fs/nfs/read.c @@ -116,10 +116,17 @@ static void nfs_readpage_truncate_uninitialised_page(struct nfs_read_data *data) pages = &data->args.pages[base >> PAGE_CACHE_SHIFT]; base &= ~PAGE_CACHE_MASK; pglen = PAGE_CACHE_SIZE - base; - if (pglen < remainder) + for (;;) { + if (remainder <= pglen) { + memclear_highpage_flush(*pages, base, remainder); + break; + } memclear_highpage_flush(*pages, base, pglen); - else - memclear_highpage_flush(*pages, base, remainder); + pages++; + remainder -= pglen; + pglen = PAGE_CACHE_SIZE; + base = 0; + } } /* @@ -476,6 +483,8 @@ static void nfs_readpage_set_pages_uptodate(struct nfs_read_data *data) unsigned int base = data->args.pgbase; struct page **pages; + if (data->res.eof) + count = data->args.count; if (unlikely(count == 0)) return; pages = &data->args.pages[base >> PAGE_CACHE_SHIFT]; @@ -483,11 +492,7 @@ static void nfs_readpage_set_pages_uptodate(struct nfs_read_data *data) count += base; for (;count >= PAGE_CACHE_SIZE; count -= PAGE_CACHE_SIZE, pages++) SetPageUptodate(*pages); - /* - * Was this an eof or a short read? If the latter, don't mark the page - * as uptodate yet. - */ - if (count > 0 && (data->res.eof || data->args.count == data->res.count)) + if (count != 0) SetPageUptodate(*pages); } @@ -502,6 +507,8 @@ static void nfs_readpage_set_pages_error(struct nfs_read_data *data) count += base; for (;count >= PAGE_CACHE_SIZE; count -= PAGE_CACHE_SIZE, pages++) SetPageError(*pages); + if (count != 0) + SetPageError(*pages); } /* From 8e037094c414172481c5ce903efdab50ce932343 Mon Sep 17 00:00:00 2001 From: Chuck Lever Date: Tue, 22 Aug 2006 20:06:15 -0400 Subject: [PATCH 301/488] SUNRPC: avoid choosing an IPMI port for RPC traffic Some hardware uses port 664 for its hardware-based IPMI listener. Teach the RPC client to avoid using that port by raising the default minimum port number to 665. Test plan: Find a mainboard known to use port 664 for IPMI; enable IPMI; mount NFS servers in a tight loop. Signed-off-by: Chuck Lever Signed-off-by: Trond Myklebust (cherry picked from 58e8cb3a035d22fc386e1c53a5d98c3f219530fb commit) --- include/linux/sunrpc/xprt.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h index 840e47a4ccc5..3a0cca255b76 100644 --- a/include/linux/sunrpc/xprt.h +++ b/include/linux/sunrpc/xprt.h @@ -37,7 +37,7 @@ extern unsigned int xprt_max_resvport; #define RPC_MIN_RESVPORT (1U) #define RPC_MAX_RESVPORT (65535U) -#define RPC_DEF_MIN_RESVPORT (650U) +#define RPC_DEF_MIN_RESVPORT (665U) #define RPC_DEF_MAX_RESVPORT (1023U) /* From 3cedf13af9f7e61aca0dbbd11b601ac93bf93a9f Mon Sep 17 00:00:00 2001 From: "J. Bruce Fields" Date: Thu, 24 Aug 2006 15:44:12 -0400 Subject: [PATCH 302/488] NFSv4: increase client-provided nfs4 clientid size Neil Brown observed that the current limit of 32 bytes isn't enough to hold two ip addresses and the rest of the stuff we're putting in it, so it's often truncated to the point where it's unlikely to be unique. This can cause spurious CLID_INUSE's from the server. Signed-off-by: J. Bruce Fields Signed-off-by: Trond Myklebust (cherry picked from fc8c17ec251e984ab3df9182ed097aa5b577c915 commit) --- include/linux/nfs_xdr.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index 2d3fb6416d91..db9cbf68e12b 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -659,7 +659,7 @@ struct nfs4_rename_res { struct nfs4_setclientid { const nfs4_verifier * sc_verifier; /* request */ unsigned int sc_name_len; - char sc_name[32]; /* request */ + char sc_name[48]; /* request */ u32 sc_prog; /* request */ unsigned int sc_netid_len; char sc_netid[4]; /* request */ From e8896495bca8490a427409e0886d63d05419ec65 Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 24 Aug 2006 15:44:19 -0400 Subject: [PATCH 303/488] NFS: Check lengths more thoroughly in NFS4 readdir XDR decode Check the bounds of length specifiers more thoroughly in the XDR decoding of NFS4 readdir reply data. Currently, if the server returns a bitmap or attr length that causes the current decode point pointer to wrap, this could go undetected (consider a small "negative" length on a 32-bit machine). Also add a check into the main XDR decode handler to make sure that the amount of data is a multiple of four bytes (as specified by RFC-1014). This makes sure that we can do u32* pointer subtraction in the NFS client without risking an undefined result (the result is undefined if the pointers are not correctly aligned with respect to one another). Signed-Off-By: David Howells Signed-off-by: Trond Myklebust (cherry picked from 5861fddd64a7eaf7e8b1a9997455a24e7f688092 commit) --- fs/nfs/nfs4xdr.c | 21 +++++++++++---------- net/sunrpc/clnt.c | 11 +++++++++++ 2 files changed, 22 insertions(+), 10 deletions(-) diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index 1750d996f49f..730ec8fb31c6 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -3355,7 +3355,7 @@ static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct n struct kvec *iov = rcvbuf->head; unsigned int nr, pglen = rcvbuf->page_len; uint32_t *end, *entry, *p, *kaddr; - uint32_t len, attrlen; + uint32_t len, attrlen, xlen; int hdrlen, recvd, status; status = decode_op_hdr(xdr, OP_READDIR); @@ -3377,10 +3377,10 @@ static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct n BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE); kaddr = p = (uint32_t *) kmap_atomic(page, KM_USER0); - end = (uint32_t *) ((char *)p + pglen + readdir->pgbase); + end = p + ((pglen + readdir->pgbase) >> 2); entry = p; for (nr = 0; *p++; nr++) { - if (p + 3 > end) + if (end - p < 3) goto short_pkt; dprintk("cookie = %Lu, ", *((unsigned long long *)p)); p += 2; /* cookie */ @@ -3389,18 +3389,19 @@ static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct n printk(KERN_WARNING "NFS: giant filename in readdir (len 0x%x)\n", len); goto err_unmap; } + xlen = XDR_QUADLEN(len); + if (end - p < xlen + 1) + goto short_pkt; dprintk("filename = %*s\n", len, (char *)p); - p += XDR_QUADLEN(len); - if (p + 1 > end) - goto short_pkt; + p += xlen; len = ntohl(*p++); /* bitmap length */ + if (end - p < len + 1) + goto short_pkt; p += len; - if (p + 1 > end) - goto short_pkt; attrlen = XDR_QUADLEN(ntohl(*p++)); - p += attrlen; /* attributes */ - if (p + 2 > end) + if (end - p < attrlen + 2) goto short_pkt; + p += attrlen; /* attributes */ entry = p; } if (!nr && (entry[0] != 0 || entry[1] == 0)) diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c index d9eac7069101..3e19d321067a 100644 --- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -1181,6 +1181,17 @@ call_verify(struct rpc_task *task) u32 *p = iov->iov_base, n; int error = -EACCES; + if ((task->tk_rqstp->rq_rcv_buf.len & 3) != 0) { + /* RFC-1014 says that the representation of XDR data must be a + * multiple of four bytes + * - if it isn't pointer subtraction in the NFS client may give + * undefined results + */ + printk(KERN_WARNING + "call_verify: XDR representation not a multiple of" + " 4 bytes: 0x%x\n", task->tk_rqstp->rq_rcv_buf.len); + goto out_eio; + } if ((len -= 3) < 0) goto out_overflow; p += 1; /* skip XID */ From 16b4289c7460ba9c04af40c574949dcca9029658 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Thu, 24 Aug 2006 12:27:15 -0400 Subject: [PATCH 304/488] NFSv4: Add v4 exception handling for the ACL functions. This is needed in order to handle any NFS4ERR_DELAY errors that might be returned by the server. It also ensures that we map the NFSv4 errors before they are returned to userland. Signed-off-by: Trond Myklebust (cherry picked from 71c12b3f0abc7501f6ed231a6d17bc9c05a238dc commit) --- fs/nfs/nfs4proc.c | 29 +++++++++++++++++++++++++++-- 1 file changed, 27 insertions(+), 2 deletions(-) diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index e6ee97f19d81..153898e1331f 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -2668,7 +2668,7 @@ out: nfs4_set_cached_acl(inode, acl); } -static inline ssize_t nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t buflen) +static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t buflen) { struct page *pages[NFS4ACL_MAXPAGES]; struct nfs_getaclargs args = { @@ -2721,6 +2721,19 @@ out_free: return ret; } +static ssize_t nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t buflen) +{ + struct nfs4_exception exception = { }; + ssize_t ret; + do { + ret = __nfs4_get_acl_uncached(inode, buf, buflen); + if (ret >= 0) + break; + ret = nfs4_handle_exception(NFS_SERVER(inode), ret, &exception); + } while (exception.retry); + return ret; +} + static ssize_t nfs4_proc_get_acl(struct inode *inode, void *buf, size_t buflen) { struct nfs_server *server = NFS_SERVER(inode); @@ -2737,7 +2750,7 @@ static ssize_t nfs4_proc_get_acl(struct inode *inode, void *buf, size_t buflen) return nfs4_get_acl_uncached(inode, buf, buflen); } -static int nfs4_proc_set_acl(struct inode *inode, const void *buf, size_t buflen) +static int __nfs4_proc_set_acl(struct inode *inode, const void *buf, size_t buflen) { struct nfs_server *server = NFS_SERVER(inode); struct page *pages[NFS4ACL_MAXPAGES]; @@ -2763,6 +2776,18 @@ static int nfs4_proc_set_acl(struct inode *inode, const void *buf, size_t buflen return ret; } +static int nfs4_proc_set_acl(struct inode *inode, const void *buf, size_t buflen) +{ + struct nfs4_exception exception = { }; + int err; + do { + err = nfs4_handle_exception(NFS_SERVER(inode), + __nfs4_proc_set_acl(inode, buf, buflen), + &exception); + } while (exception.retry); + return err; +} + static int nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server) { From a343bb7750e6a098909c34f5c5dfddbc4fa40053 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 22 Aug 2006 20:06:03 -0400 Subject: [PATCH 305/488] VFS: Fix access("file", X_OK) in the presence of ACLs Currently, the access() call will return incorrect information on NFS if there exists an ACL that grants execute access to the user on a regular file. The reason the information is incorrect is that the VFS overrides this execute access in open_exec() by checking (inode->i_mode & 0111). This patch propagates the VFS execute bit check back into the generic permission() call. Signed-off-by: Trond Myklebust (cherry picked from 64cbae98848c4c99851cb0a405f0b4982cd76c1e commit) --- fs/namei.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/fs/namei.c b/fs/namei.c index 863166441bf3..432d6bc6fab0 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -227,10 +227,10 @@ int generic_permission(struct inode *inode, int mask, int permission(struct inode *inode, int mask, struct nameidata *nd) { + umode_t mode = inode->i_mode; int retval, submask; if (mask & MAY_WRITE) { - umode_t mode = inode->i_mode; /* * Nobody gets write access to a read-only fs. @@ -247,6 +247,13 @@ int permission(struct inode *inode, int mask, struct nameidata *nd) } + /* + * MAY_EXEC on regular files requires special handling: We override + * filesystem execute permissions if the mode bits aren't set. + */ + if ((mask & MAY_EXEC) && S_ISREG(mode) && !(mode & S_IXUGO)) + return -EACCES; + /* Ordinary permission routines do not understand MAY_APPEND. */ submask = mask & ~MAY_APPEND; if (inode->i_op && inode->i_op->permission) From 9167b0b9a0ab7907191523f5a0528e3b9c288e21 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 22 Aug 2006 20:06:03 -0400 Subject: [PATCH 306/488] VFS: Remove redundant open-coded mode bit check in prepare_binfmt(). The check in prepare_binfmt() for inode->i_mode & 0111 is redundant, since open_exec() will already have done that. Signed-off-by: Trond Myklebust (cherry picked from 822dec482ced07af32c378cd936d77345786572b commit) --- fs/exec.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/fs/exec.c b/fs/exec.c index 8344ba73a2a6..a6f64a98ac50 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -922,12 +922,6 @@ int prepare_binprm(struct linux_binprm *bprm) int retval; mode = inode->i_mode; - /* - * Check execute perms again - if the caller has CAP_DAC_OVERRIDE, - * generic_permission lets a non-executable through - */ - if (!(mode & 0111)) /* with at least _one_ execute bit set */ - return -EACCES; if (bprm->file->f_op == NULL) return -EACCES; From a969fd5a4e162c4485ae8f3e49d674656a18fa36 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 22 Aug 2006 20:06:04 -0400 Subject: [PATCH 307/488] VFS: Remove redundant open-coded mode bit checks in open_exec(). The check in open_exec() for inode->i_mode & 0111 has been made redundant by the fix to permission(). Signed-off-by: Trond Myklebust (cherry picked from 1d3741c5d991686699f100b65b9956f7ee7ae0ae commit) --- fs/exec.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/fs/exec.c b/fs/exec.c index a6f64a98ac50..f7aabfeca033 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -486,8 +486,6 @@ struct file *open_exec(const char *name) if (!(nd.mnt->mnt_flags & MNT_NOEXEC) && S_ISREG(inode->i_mode)) { int err = vfs_permission(&nd, MAY_EXEC); - if (!err && !(inode->i_mode & 0111)) - err = -EACCES; file = ERR_PTR(err); if (!err) { file = nameidata_to_filp(&nd, O_RDONLY); From af07ac276af6eec5111a6567cb7eaf4d222bd332 Mon Sep 17 00:00:00 2001 From: Matt Porter Date: Fri, 4 Aug 2006 11:41:51 -0500 Subject: [PATCH 308/488] [POWERPC] Remove flush_dcache_all export Removes the flush_dcache_all export for non coherent platforms. We removed the last in-kernel user of this years ago in arch/ppc so it no longer serves a purpose. Plus, it breaks the build at the moment. Signed-off-by: Matt Porter Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/ppc_ksyms.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/arch/powerpc/kernel/ppc_ksyms.c b/arch/powerpc/kernel/ppc_ksyms.c index f6a05f090b25..39d3bfcabcd2 100644 --- a/arch/powerpc/kernel/ppc_ksyms.c +++ b/arch/powerpc/kernel/ppc_ksyms.c @@ -126,10 +126,6 @@ EXPORT_SYMBOL(pci_bus_mem_base_phys); EXPORT_SYMBOL(pci_bus_to_hose); #endif /* CONFIG_PCI */ -#ifdef CONFIG_NOT_COHERENT_CACHE -EXPORT_SYMBOL(flush_dcache_all); -#endif - EXPORT_SYMBOL(start_thread); EXPORT_SYMBOL(kernel_thread); From 054389f114fc55d525926b55e82b473b783a7d77 Mon Sep 17 00:00:00 2001 From: Matt Porter Date: Fri, 4 Aug 2006 11:44:01 -0500 Subject: [PATCH 309/488] [POWERPC] Fix powerpc 44x_mmu build The PIN_SIZE definition name changed, update 44x_mmu.c accordingly. Signed-off-by: Matt Porter Signed-off-by: Paul Mackerras --- arch/powerpc/mm/44x_mmu.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/mm/44x_mmu.c b/arch/powerpc/mm/44x_mmu.c index 376829ed2211..0a0a0487b334 100644 --- a/arch/powerpc/mm/44x_mmu.c +++ b/arch/powerpc/mm/44x_mmu.c @@ -103,7 +103,7 @@ unsigned long __init mmu_mapin_ram(void) /* Determine number of entries necessary to cover lowmem */ pinned_tlbs = (unsigned int) - (_ALIGN(total_lowmem, PPC44x_PIN_SIZE) >> PPC44x_PIN_SHIFT); + (_ALIGN(total_lowmem, PPC_PIN_SIZE) >> PPC44x_PIN_SHIFT); /* Write upper watermark to save location */ tlb_44x_hwater = PPC44x_LOW_SLOT - pinned_tlbs; @@ -111,7 +111,7 @@ unsigned long __init mmu_mapin_ram(void) /* If necessary, set additional pinned TLBs */ if (pinned_tlbs > 1) for (i = (PPC44x_LOW_SLOT-(pinned_tlbs-1)); i < PPC44x_LOW_SLOT; i++) { - unsigned int phys_addr = (PPC44x_LOW_SLOT-i) * PPC44x_PIN_SIZE; + unsigned int phys_addr = (PPC44x_LOW_SLOT-i) * PPC_PIN_SIZE; ppc44x_pin_tlb(i, phys_addr+PAGE_OFFSET, phys_addr); } From 5dc599c206ad50e1b190edfbc98b7cf8ce361003 Mon Sep 17 00:00:00 2001 From: Jon Loeliger Date: Tue, 15 Aug 2006 16:19:02 -0500 Subject: [PATCH 310/488] [POWERPC] Allow MPC8641 HPCN to build with CONFIG_PCI disabled too. Signed-off-by: Jon Loeliger Signed-off-by: Paul Mackerras --- arch/powerpc/platforms/86xx/mpc86xx_hpcn.c | 9 +++++++-- arch/powerpc/platforms/86xx/pci.c | 3 ++- include/asm-powerpc/mpc86xx.h | 2 -- 3 files changed, 9 insertions(+), 5 deletions(-) diff --git a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c index 146da3001c67..813eb5811eb4 100644 --- a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c +++ b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c @@ -52,6 +52,7 @@ unsigned long pci_dram_offset = 0; #endif +#ifdef CONFIG_PCI static void mpc86xx_8259_cascade(unsigned int irq, struct irq_desc *desc, struct pt_regs *regs) { @@ -60,14 +61,18 @@ static void mpc86xx_8259_cascade(unsigned int irq, struct irq_desc *desc, generic_handle_irq(cascade_irq, regs); desc->chip->eoi(irq); } +#endif /* CONFIG_PCI */ void __init mpc86xx_hpcn_init_irq(void) { struct mpic *mpic1; - struct device_node *np, *cascade_node = NULL; - int cascade_irq; + struct device_node *np; phys_addr_t openpic_paddr; +#ifdef CONFIG_PCI + struct device_node *cascade_node = NULL; + int cascade_irq; +#endif np = of_find_node_by_type(NULL, "open-pic"); if (np == NULL) diff --git a/arch/powerpc/platforms/86xx/pci.c b/arch/powerpc/platforms/86xx/pci.c index bc5139043112..a8c8f0a44055 100644 --- a/arch/powerpc/platforms/86xx/pci.c +++ b/arch/powerpc/platforms/86xx/pci.c @@ -188,7 +188,8 @@ int __init add_bridge(struct device_node *dev) printk(KERN_INFO "Found MPC86xx PCIE host bridge at 0x%08lx. " "Firmware bus number: %d->%d\n", - rsrc.start, hose->first_busno, hose->last_busno); + (unsigned long) rsrc.start, + hose->first_busno, hose->last_busno); DBG(" ->Hose at 0x%p, cfg_addr=0x%p,cfg_data=0x%p\n", hose, hose->cfg_addr, hose->cfg_data); diff --git a/include/asm-powerpc/mpc86xx.h b/include/asm-powerpc/mpc86xx.h index f260382739fa..2d6ad859df7f 100644 --- a/include/asm-powerpc/mpc86xx.h +++ b/include/asm-powerpc/mpc86xx.h @@ -23,8 +23,6 @@ #define _ISA_MEM_BASE isa_mem_base #ifdef CONFIG_PCI #define PCI_DRAM_OFFSET pci_dram_offset -#else -#define PCI_DRAM_OFFSET 0 #endif #define CPU0_BOOT_RELEASE 0x01000000 From c85c41ad73c6db4cf4cc98c595cc5e2fdbdb53d5 Mon Sep 17 00:00:00 2001 From: Jon Loeliger Date: Thu, 17 Aug 2006 14:27:57 -0500 Subject: [PATCH 311/488] [POWERPC] Use mpc8641hpcn PIC base address from dev tree. After going through the trouble of setting up the PIC base address in the pic@40000 device tree node, use it instead of the obsolete hard-coded value. Signed-off-by: Jon Loeliger Signed-off-by: Paul Mackerras --- arch/powerpc/platforms/86xx/mpc86xx_hpcn.c | 19 +++++++++---------- include/asm-powerpc/mpc86xx.h | 1 - 2 files changed, 9 insertions(+), 11 deletions(-) diff --git a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c index 813eb5811eb4..0b1b52168bb7 100644 --- a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c +++ b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c @@ -68,37 +68,36 @@ mpc86xx_hpcn_init_irq(void) { struct mpic *mpic1; struct device_node *np; - phys_addr_t openpic_paddr; + struct resource res; #ifdef CONFIG_PCI struct device_node *cascade_node = NULL; int cascade_irq; #endif + /* Determine PIC address. */ np = of_find_node_by_type(NULL, "open-pic"); if (np == NULL) return; - - /* Determine the Physical Address of the OpenPIC regs */ - openpic_paddr = get_immrbase() + MPC86xx_OPENPIC_OFFSET; + of_address_to_resource(np, 0, &res); /* Alloc mpic structure and per isu has 16 INT entries. */ - mpic1 = mpic_alloc(np, openpic_paddr, + mpic1 = mpic_alloc(np, res.start, MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN, 16, NR_IRQS - 4, " MPIC "); BUG_ON(mpic1 == NULL); - mpic_assign_isu(mpic1, 0, openpic_paddr + 0x10000); + mpic_assign_isu(mpic1, 0, res.start + 0x10000); /* 48 Internal Interrupts */ - mpic_assign_isu(mpic1, 1, openpic_paddr + 0x10200); - mpic_assign_isu(mpic1, 2, openpic_paddr + 0x10400); - mpic_assign_isu(mpic1, 3, openpic_paddr + 0x10600); + mpic_assign_isu(mpic1, 1, res.start + 0x10200); + mpic_assign_isu(mpic1, 2, res.start + 0x10400); + mpic_assign_isu(mpic1, 3, res.start + 0x10600); /* 16 External interrupts * Moving them from [0 - 15] to [64 - 79] */ - mpic_assign_isu(mpic1, 4, openpic_paddr + 0x10000); + mpic_assign_isu(mpic1, 4, res.start + 0x10000); mpic_init(mpic1); diff --git a/include/asm-powerpc/mpc86xx.h b/include/asm-powerpc/mpc86xx.h index 2d6ad859df7f..b85df45b1a84 100644 --- a/include/asm-powerpc/mpc86xx.h +++ b/include/asm-powerpc/mpc86xx.h @@ -31,7 +31,6 @@ #define MCM_PORT_CONFIG_OFFSET 0x1010 /* Offset from CCSRBAR */ -#define MPC86xx_OPENPIC_OFFSET (0x40000) #define MPC86xx_MCM_OFFSET (0x00000) #define MPC86xx_MCM_SIZE (0x02000) From b2155d0417df9f2b4c0d396b6530b864d9f08623 Mon Sep 17 00:00:00 2001 From: Douglas Gilbert Date: Sat, 19 Aug 2006 00:11:34 -0400 Subject: [PATCH 312/488] [SCSI] sg: fix incorrect page problem There's a problem where sg is executing a ->nopage operation on a compound page, it actually calls get_page() on the first page in the compound rather than the page which is being mapped. The fix is to select the correct page by indexing into the compound. Signed-off-by: James Bottomley --- drivers/scsi/sg.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c index 65eef33846bb..34f9343ed0af 100644 --- a/drivers/scsi/sg.c +++ b/drivers/scsi/sg.c @@ -18,8 +18,8 @@ * */ -static int sg_version_num = 30533; /* 2 digits for each component */ -#define SG_VERSION_STR "3.5.33" +static int sg_version_num = 30534; /* 2 digits for each component */ +#define SG_VERSION_STR "3.5.34" /* * D. P. Gilbert (dgilbert@interlog.com, dougg@triode.net.au), notes: @@ -60,7 +60,7 @@ static int sg_version_num = 30533; /* 2 digits for each component */ #ifdef CONFIG_SCSI_PROC_FS #include -static char *sg_version_date = "20050908"; +static char *sg_version_date = "20060818"; static int sg_proc_init(void); static void sg_proc_cleanup(void); @@ -1164,7 +1164,7 @@ sg_vma_nopage(struct vm_area_struct *vma, unsigned long addr, int *type) len = vma->vm_end - sa; len = (len < sg->length) ? len : sg->length; if (offset < len) { - page = sg->page; + page = virt_to_page(page_address(sg->page) + offset); get_page(page); /* increment page count */ break; } From 9c06938aa458843fb71fa35371f23a3b89317252 Mon Sep 17 00:00:00 2001 From: Andrew Vasquez Date: Wed, 23 Aug 2006 14:54:54 -0700 Subject: [PATCH 313/488] [SCSI] qla2xxx: Correct PLOGI retry logic. Original code attempts to retry PLOGIs to fcports that are FCP_TARGETs only. If the driver never performed a successful PLOGI/PRLI, the port-type would never be assigned, and the relogin logic would silently drop the request (and thus the port would not be recognized and registered). The fix is relatively straightforward, drop the FCP_TARGET-only check. Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_os.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 1e2b95bac830..65cbe2f5eea2 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -2238,9 +2238,6 @@ qla2x00_do_dpc(void *data) next_loopid = 0; list_for_each_entry(fcport, &ha->fcports, list) { - if (fcport->port_type != FCT_TARGET) - continue; - /* * If the port is not ONLINE then try to login * to it if we haven't run out of retries. From 476e8978d9ccacfc911bd42e083dd784ad1465b1 Mon Sep 17 00:00:00 2001 From: Andrew Vasquez Date: Wed, 23 Aug 2006 14:54:55 -0700 Subject: [PATCH 314/488] [SCSI] qla2xxx: Properly re-enable EFT support after an ISP abort. Software must explicitely re-enable extended firmware tracing after any ISP abort condition. Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_init.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 9758dba95542..859649160caa 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -3063,6 +3063,7 @@ qla2x00_update_fcports(scsi_qla_host_t *ha) int qla2x00_abort_isp(scsi_qla_host_t *ha) { + int rval; unsigned long flags = 0; uint16_t cnt; srb_t *sp; @@ -3119,6 +3120,16 @@ qla2x00_abort_isp(scsi_qla_host_t *ha) ha->isp_abort_cnt = 0; clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags); + + if (ha->eft) { + rval = qla2x00_trace_control(ha, TC_ENABLE, + ha->eft_dma, EFT_NUM_BUFFERS); + if (rval) { + qla_printk(KERN_WARNING, ha, + "Unable to reinitialize EFT " + "(%d).\n", rval); + } + } } else { /* failed the ISP abort */ ha->flags.online = 1; if (test_bit(ISP_ABORT_RETRY, &ha->dpc_flags)) { From 15a3758dc9e1c9d862e46acdf607de70c302fa6a Mon Sep 17 00:00:00 2001 From: Andrew Vasquez Date: Wed, 23 Aug 2006 14:54:56 -0700 Subject: [PATCH 315/488] [SCSI] qla2xxx: Update version number to 8.01.07-k1. Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_version.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_version.h b/drivers/scsi/qla2xxx/qla_version.h index f5826bf04a24..971259032ef7 100644 --- a/drivers/scsi/qla2xxx/qla_version.h +++ b/drivers/scsi/qla2xxx/qla_version.h @@ -7,9 +7,9 @@ /* * Driver version */ -#define QLA2XXX_VERSION "8.01.05-k4" +#define QLA2XXX_VERSION "8.01.07-k1" #define QLA_DRIVER_MAJOR_VER 8 #define QLA_DRIVER_MINOR_VER 1 -#define QLA_DRIVER_PATCH_VER 5 +#define QLA_DRIVER_PATCH_VER 7 #define QLA_DRIVER_BETA_VER 0 From 0db99e3359234be181590463184b9959059a9ea9 Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Sat, 26 Aug 2006 03:00:22 -0400 Subject: [PATCH 316/488] [SCSI] fix scsi_send_eh_cmnd regression The callers of scsi_send_eh_cmnd are setting the cmnd buffer, and then scsi_send_eh_cmnd is copying that updated buffer to the old_cmnd variable. Then after the command runs, we end up copying that old_cmnd var which has the new cmnd to the scsi command buffer. When this command gets recent, all types of fun things happen like getting TUR or START_STOP commands with data and scatterlists. This patch made against scsi-rc-fixes, has the callers of scsi_send_eh_cmnd pass in the command so scsi_send_eh_cmnd can do the right thing. This should go into 2.6.18 since this fixes a regression added when we removed some of the scsi_cmnd fields and replaced them with local variables. Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- drivers/scsi/scsi_error.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index 6a5b731bd5ba..a8ed5a22009d 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -460,7 +460,8 @@ static void scsi_eh_done(struct scsi_cmnd *scmd) * Return value: * SUCCESS or FAILED or NEEDS_RETRY **/ -static int scsi_send_eh_cmnd(struct scsi_cmnd *scmd, int timeout, int copy_sense) +static int scsi_send_eh_cmnd(struct scsi_cmnd *scmd, unsigned char *cmnd, + int cmnd_size, int timeout, int copy_sense) { struct scsi_device *sdev = scmd->device; struct Scsi_Host *shost = sdev->host; @@ -490,6 +491,9 @@ static int scsi_send_eh_cmnd(struct scsi_cmnd *scmd, int timeout, int copy_sense old_cmd_len = scmd->cmd_len; old_use_sg = scmd->use_sg; + memset(scmd->cmnd, 0, sizeof(scmd->cmnd)); + memcpy(scmd->cmnd, cmnd, cmnd_size); + if (copy_sense) { int gfp_mask = GFP_ATOMIC; @@ -610,8 +614,7 @@ static int scsi_request_sense(struct scsi_cmnd *scmd) static unsigned char generic_sense[6] = {REQUEST_SENSE, 0, 0, 0, 252, 0}; - memcpy(scmd->cmnd, generic_sense, sizeof(generic_sense)); - return scsi_send_eh_cmnd(scmd, SENSE_TIMEOUT, 1); + return scsi_send_eh_cmnd(scmd, generic_sense, 6, SENSE_TIMEOUT, 1); } /** @@ -736,10 +739,7 @@ static int scsi_eh_tur(struct scsi_cmnd *scmd) int retry_cnt = 1, rtn; retry_tur: - memcpy(scmd->cmnd, tur_command, sizeof(tur_command)); - - - rtn = scsi_send_eh_cmnd(scmd, SENSE_TIMEOUT, 0); + rtn = scsi_send_eh_cmnd(scmd, tur_command, 6, SENSE_TIMEOUT, 0); SCSI_LOG_ERROR_RECOVERY(3, printk("%s: scmd %p rtn %x\n", __FUNCTION__, scmd, rtn)); @@ -839,8 +839,8 @@ static int scsi_eh_try_stu(struct scsi_cmnd *scmd) if (scmd->device->allow_restart) { int rtn; - memcpy(scmd->cmnd, stu_command, sizeof(stu_command)); - rtn = scsi_send_eh_cmnd(scmd, START_UNIT_TIMEOUT, 0); + rtn = scsi_send_eh_cmnd(scmd, stu_command, 6, + START_UNIT_TIMEOUT, 0); if (rtn == SUCCESS) return 0; } From 4801bc25f37a969ea773c24d12fd4738541848a1 Mon Sep 17 00:00:00 2001 From: David Brownell Date: Fri, 11 Aug 2006 22:53:08 +0200 Subject: [PATCH 317/488] [PATCH] i2c: tps65010 build fixes The tps65010.c driver in the main tree never got updated with build fixes since the last batch of I2C driver changes; and the genirq trigger flags were updated wierdly too. This also includes a minor tweak to reduce the frequency used to poll for unplug-the-AC-power on the TPS chips that don't provide relevant IRQs. It _would_ be nice to sense whether there's even a battery, but that'd normally be an HDQ/1-wire interface to a smart battery, and such APIs aren't standardized. Signed-off-by: David Brownell Signed-off-by: Jean Delvare Signed-off-by: Greg Kroah-Hartman --- drivers/i2c/chips/tps65010.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/i2c/chips/tps65010.c b/drivers/i2c/chips/tps65010.c index e7e27049fbfa..0be6fd6a267d 100644 --- a/drivers/i2c/chips/tps65010.c +++ b/drivers/i2c/chips/tps65010.c @@ -43,13 +43,12 @@ /*-------------------------------------------------------------------------*/ #define DRIVER_VERSION "2 May 2005" -#define DRIVER_NAME (tps65010_driver.name) +#define DRIVER_NAME (tps65010_driver.driver.name) MODULE_DESCRIPTION("TPS6501x Power Management Driver"); MODULE_LICENSE("GPL"); static unsigned short normal_i2c[] = { 0x48, /* 0x49, */ I2C_CLIENT_END }; -static unsigned short normal_i2c_range[] = { I2C_CLIENT_END }; I2C_CLIENT_INSMOD; @@ -100,7 +99,7 @@ struct tps65010 { /* not currently tracking GPIO state */ }; -#define POWER_POLL_DELAY msecs_to_jiffies(800) +#define POWER_POLL_DELAY msecs_to_jiffies(5000) /*-------------------------------------------------------------------------*/ @@ -520,8 +519,11 @@ tps65010_probe(struct i2c_adapter *bus, int address, int kind) goto fail1; } + /* the IRQ is active low, but many gpio lines can't support that + * so this driver can use falling-edge triggers instead. + */ + irqflags = IRQF_SAMPLE_RANDOM; #ifdef CONFIG_ARM - irqflags = IRQF_SAMPLE_RANDOM | IRQF_TRIGGER_LOW; if (machine_is_omap_h2()) { tps->model = TPS65010; omap_cfg_reg(W4_GPIO58); @@ -543,8 +545,6 @@ tps65010_probe(struct i2c_adapter *bus, int address, int kind) // FIXME set up this board's IRQ ... } -#else - irqflags = IRQF_SAMPLE_RANDOM; #endif if (tps->irq > 0) { From faf9b616325430422fa13fead88ca7843eb249d6 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Fri, 25 Aug 2006 10:24:20 +0200 Subject: [PATCH 318/488] [PATCH] hwmon: abituguru timeout fixes This patch contains 2 sets of fixes for the abituguru: 1) Much improved timeout handling, drasticly reducing the amount of timeout errors on some motherboards 2) Fix the exit paths in the bank1 sensor type detect code to always restore the original settings even on an error. Without this our special test settings could remain seriously confusing the system BIOS's setup menu. Both are very much related and are must haves, to avoid messing up the uguru CMOS settings. Detailed changes: - Much improved timeout / wait for status handling. Many thanks to Sunil Kumar, for all his testing, ideas and patches! The code now first busy waits, polling the uguru for the expected status as this usually succeeds pretty quickly (within 90 reads). To avoid unnecessary CPU burn in timeout conditions, the amount of busy waiting has been halved from previous versions (120 tries instead of 250). This is not a problem, because this version goes to sleep after 120 attemps for 1 jiffy and then tries again, it does this sleep and try again 5 times before finally giving up. This (almost?) completly removes the timeout errors some people have seen regulary. Apparently some older uguru versions sometimes are distracted for a (relatively) long time. This solves this. - These timeout errors not only occur in the sending address part of reading the uguru but also in the wait for read state, so errors in this state are now handled as retryable just like send address state errors and are only logged and reported to userspace if 3 executive tries fail. - Fix a very nasty bug in the bank1 sensor type detection code, where it would not restore the original settings in any of the error paths! - Since not successfully restoring the original settings can seriously confuse the system BIOS (hang when entering the relevant setup menu), we now try restoring them 3 times before giving up. Signed-off-by: Hans de Goede Signed-off-by: Jean Delvare Signed-off-by: Greg Kroah-Hartman --- drivers/hwmon/abituguru.c | 99 ++++++++++++++++++++++++--------------- 1 file changed, 61 insertions(+), 38 deletions(-) diff --git a/drivers/hwmon/abituguru.c b/drivers/hwmon/abituguru.c index cc15c4f2e9ec..35ad1b032726 100644 --- a/drivers/hwmon/abituguru.c +++ b/drivers/hwmon/abituguru.c @@ -26,6 +26,7 @@ #include #include #include +#include #include #include #include @@ -64,17 +65,17 @@ #define ABIT_UGURU_IN_SENSOR 0 #define ABIT_UGURU_TEMP_SENSOR 1 #define ABIT_UGURU_NC 2 -/* Timeouts / Retries, if these turn out to need a lot of fiddling we could - convert them to params. */ -/* 250 was determined by trial and error, 200 works most of the time, but not - always. I assume this is cpu-speed independent, since the ISA-bus and not - the CPU should be the bottleneck. Note that 250 sometimes is still not - enough (only reported on AN7 mb) this is handled by a higher layer. */ -#define ABIT_UGURU_WAIT_TIMEOUT 250 +/* In many cases we need to wait for the uGuru to reach a certain status, most + of the time it will reach this status within 30 - 90 ISA reads, and thus we + can best busy wait. This define gives the total amount of reads to try. */ +#define ABIT_UGURU_WAIT_TIMEOUT 125 +/* However sometimes older versions of the uGuru seem to be distracted and they + do not respond for a long time. To handle this we sleep before each of the + last ABIT_UGURU_WAIT_TIMEOUT_SLEEP tries. */ +#define ABIT_UGURU_WAIT_TIMEOUT_SLEEP 5 /* Normally all expected status in abituguru_ready, are reported after the - first read, but sometimes not and we need to poll, 5 polls was not enough - 50 sofar is. */ -#define ABIT_UGURU_READY_TIMEOUT 50 + first read, but sometimes not and we need to poll. */ +#define ABIT_UGURU_READY_TIMEOUT 5 /* Maximum 3 retries on timedout reads/writes, delay 200 ms before retrying */ #define ABIT_UGURU_MAX_RETRIES 3 #define ABIT_UGURU_RETRY_DELAY (HZ/5) @@ -226,6 +227,10 @@ static int abituguru_wait(struct abituguru_data *data, u8 state) timeout--; if (timeout == 0) return -EBUSY; + /* sleep a bit before our last few tries, see the comment on + this where ABIT_UGURU_WAIT_TIMEOUT_SLEEP is defined. */ + if (timeout <= ABIT_UGURU_WAIT_TIMEOUT_SLEEP) + msleep(0); } return 0; } @@ -256,6 +261,7 @@ static int abituguru_ready(struct abituguru_data *data) "CMD reg does not hold 0xAC after ready command\n"); return -EIO; } + msleep(0); } /* After this the ABIT_UGURU_DATA port should contain @@ -268,6 +274,7 @@ static int abituguru_ready(struct abituguru_data *data) "state != more input after ready command\n"); return -EIO; } + msleep(0); } data->uguru_ready = 1; @@ -331,7 +338,8 @@ static int abituguru_read(struct abituguru_data *data, /* And read the data */ for (i = 0; i < count; i++) { if (abituguru_wait(data, ABIT_UGURU_STATUS_READ)) { - ABIT_UGURU_DEBUG(1, "timeout exceeded waiting for " + ABIT_UGURU_DEBUG(retries ? 1 : 3, + "timeout exceeded waiting for " "read state (bank: %d, sensor: %d)\n", (int)bank_addr, (int)sensor_addr); break; @@ -350,7 +358,9 @@ static int abituguru_read(struct abituguru_data *data, static int abituguru_write(struct abituguru_data *data, u8 bank_addr, u8 sensor_addr, u8 *buf, int count) { - int i; + /* We use the ready timeout as we have to wait for 0xAC just like the + ready function */ + int i, timeout = ABIT_UGURU_READY_TIMEOUT; /* Send the address */ i = abituguru_send_address(data, bank_addr, sensor_addr, @@ -370,7 +380,8 @@ static int abituguru_write(struct abituguru_data *data, } /* Now we need to wait till the chip is ready to be read again, - don't ask why */ + so that we can read 0xAC as confirmation that our write has + succeeded. */ if (abituguru_wait(data, ABIT_UGURU_STATUS_READ)) { ABIT_UGURU_DEBUG(1, "timeout exceeded waiting for read state " "after write (bank: %d, sensor: %d)\n", (int)bank_addr, @@ -379,11 +390,15 @@ static int abituguru_write(struct abituguru_data *data, } /* Cmd port MUST be read now and should contain 0xAC */ - if (inb_p(data->addr + ABIT_UGURU_CMD) != 0xAC) { - ABIT_UGURU_DEBUG(1, "CMD reg does not hold 0xAC after write " - "(bank: %d, sensor: %d)\n", (int)bank_addr, - (int)sensor_addr); - return -EIO; + while (inb_p(data->addr + ABIT_UGURU_CMD) != 0xAC) { + timeout--; + if (timeout == 0) { + ABIT_UGURU_DEBUG(1, "CMD reg does not hold 0xAC after " + "write (bank: %d, sensor: %d)\n", + (int)bank_addr, (int)sensor_addr); + return -EIO; + } + msleep(0); } /* Last put the chip back in ready state */ @@ -403,7 +418,7 @@ abituguru_detect_bank1_sensor_type(struct abituguru_data *data, u8 sensor_addr) { u8 val, buf[3]; - int ret = ABIT_UGURU_NC; + int i, ret = -ENODEV; /* error is the most common used retval :| */ /* If overriden by the user return the user selected type */ if (bank1_types[sensor_addr] >= ABIT_UGURU_IN_SENSOR && @@ -439,7 +454,7 @@ abituguru_detect_bank1_sensor_type(struct abituguru_data *data, buf[2] = 250; if (abituguru_write(data, ABIT_UGURU_SENSOR_BANK1 + 2, sensor_addr, buf, 3) != 3) - return -ENODEV; + goto abituguru_detect_bank1_sensor_type_exit; /* Now we need 20 ms to give the uguru time to read the sensors and raise a voltage alarm */ set_current_state(TASK_UNINTERRUPTIBLE); @@ -447,21 +462,16 @@ abituguru_detect_bank1_sensor_type(struct abituguru_data *data, /* Check for alarm and check the alarm is a volt low alarm. */ if (abituguru_read(data, ABIT_UGURU_ALARM_BANK, 0, buf, 3, ABIT_UGURU_MAX_RETRIES) != 3) - return -ENODEV; + goto abituguru_detect_bank1_sensor_type_exit; if (buf[sensor_addr/8] & (0x01 << (sensor_addr % 8))) { if (abituguru_read(data, ABIT_UGURU_SENSOR_BANK1 + 1, sensor_addr, buf, 3, ABIT_UGURU_MAX_RETRIES) != 3) - return -ENODEV; + goto abituguru_detect_bank1_sensor_type_exit; if (buf[0] & ABIT_UGURU_VOLT_LOW_ALARM_FLAG) { - /* Restore original settings */ - if (abituguru_write(data, ABIT_UGURU_SENSOR_BANK1 + 2, - sensor_addr, - data->bank1_settings[sensor_addr], - 3) != 3) - return -ENODEV; ABIT_UGURU_DEBUG(2, " found volt sensor\n"); - return ABIT_UGURU_IN_SENSOR; + ret = ABIT_UGURU_IN_SENSOR; + goto abituguru_detect_bank1_sensor_type_exit; } else ABIT_UGURU_DEBUG(2, " alarm raised during volt " "sensor test, but volt low flag not set\n"); @@ -477,7 +487,7 @@ abituguru_detect_bank1_sensor_type(struct abituguru_data *data, buf[2] = 10; if (abituguru_write(data, ABIT_UGURU_SENSOR_BANK1 + 2, sensor_addr, buf, 3) != 3) - return -ENODEV; + goto abituguru_detect_bank1_sensor_type_exit; /* Now we need 50 ms to give the uguru time to read the sensors and raise a temp alarm */ set_current_state(TASK_UNINTERRUPTIBLE); @@ -485,15 +495,16 @@ abituguru_detect_bank1_sensor_type(struct abituguru_data *data, /* Check for alarm and check the alarm is a temp high alarm. */ if (abituguru_read(data, ABIT_UGURU_ALARM_BANK, 0, buf, 3, ABIT_UGURU_MAX_RETRIES) != 3) - return -ENODEV; + goto abituguru_detect_bank1_sensor_type_exit; if (buf[sensor_addr/8] & (0x01 << (sensor_addr % 8))) { if (abituguru_read(data, ABIT_UGURU_SENSOR_BANK1 + 1, sensor_addr, buf, 3, ABIT_UGURU_MAX_RETRIES) != 3) - return -ENODEV; + goto abituguru_detect_bank1_sensor_type_exit; if (buf[0] & ABIT_UGURU_TEMP_HIGH_ALARM_FLAG) { - ret = ABIT_UGURU_TEMP_SENSOR; ABIT_UGURU_DEBUG(2, " found temp sensor\n"); + ret = ABIT_UGURU_TEMP_SENSOR; + goto abituguru_detect_bank1_sensor_type_exit; } else ABIT_UGURU_DEBUG(2, " alarm raised during temp " "sensor test, but temp high flag not set\n"); @@ -501,11 +512,23 @@ abituguru_detect_bank1_sensor_type(struct abituguru_data *data, ABIT_UGURU_DEBUG(2, " alarm not raised during temp sensor " "test\n"); - /* Restore original settings */ - if (abituguru_write(data, ABIT_UGURU_SENSOR_BANK1 + 2, sensor_addr, - data->bank1_settings[sensor_addr], 3) != 3) + ret = ABIT_UGURU_NC; +abituguru_detect_bank1_sensor_type_exit: + /* Restore original settings, failing here is really BAD, it has been + reported that some BIOS-es hang when entering the uGuru menu with + invalid settings present in the uGuru, so we try this 3 times. */ + for (i = 0; i < 3; i++) + if (abituguru_write(data, ABIT_UGURU_SENSOR_BANK1 + 2, + sensor_addr, data->bank1_settings[sensor_addr], + 3) == 3) + break; + if (i == 3) { + printk(KERN_ERR ABIT_UGURU_NAME + ": Fatal error could not restore original settings. " + "This should never happen please report this to the " + "abituguru maintainer (see MAINTAINERS)\n"); return -ENODEV; - + } return ret; } @@ -1305,7 +1328,7 @@ static struct abituguru_data *abituguru_update_device(struct device *dev) data->update_timeouts = 0; LEAVE_UPDATE: /* handle timeout condition */ - if (err == -EBUSY) { + if (!success && (err == -EBUSY || err >= 0)) { /* No overflow please */ if (data->update_timeouts < 255u) data->update_timeouts++; From 954c0b7cd5b9aaa11fb67a0c011fcb5e5897385a Mon Sep 17 00:00:00 2001 From: Daniel Ritz Date: Tue, 22 Aug 2006 07:29:08 -0700 Subject: [PATCH 319/488] [PATCH] PCI: use PCBIOS as last fallback there was a change in 2.6.17 which affected the order in which the PCI access methods are probed. this gives regressions on some machines with broken BIOS. the problem is that PCBIOS sometimes reports last bus wrong, leaving cardbus non-funcational. previously those system worked fine with direct access. The patch changes the PCI init code to have PCBIOS as last fallback, yet the PCBIOS code still has to run first to set pcibios_last_bus to the value reported by the BIOS. this is needed in case legacy PCI probing (arch/i386/pci/legacy.c) is used to detect peer busses. using direct access if available fixes the cardbus problems. Signed-off-by: Daniel Ritz Cc: Dave Hansen Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- arch/i386/pci/init.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/arch/i386/pci/init.c b/arch/i386/pci/init.c index c7650a7e0b07..51087a9d9172 100644 --- a/arch/i386/pci/init.c +++ b/arch/i386/pci/init.c @@ -14,8 +14,12 @@ static __init int pci_access_init(void) #ifdef CONFIG_PCI_BIOS pci_pcbios_init(); #endif - if (raw_pci_ops) - return 0; + /* + * don't check for raw_pci_ops here because we want pcbios as last + * fallback, yet it's needed to run first to set pcibios_last_bus + * in case legacy PCI probing is used. otherwise detecting peer busses + * fails. + */ #ifdef CONFIG_PCI_DIRECT pci_direct_init(); #endif From fd4dc27cff15f77cde218613baa36b855c85ad9f Mon Sep 17 00:00:00 2001 From: Daniel Ritz Date: Tue, 22 Aug 2006 07:29:09 -0700 Subject: [PATCH 320/488] [PATCH] PCI: i386 mmconfig: don't forget bus number when setting fallback_slots bits On i386 PCI mmconfig forgets the bus number when setting the fallback_slots bits which means fallback to conf1 only works for bus 0. Signed-off-by: Daniel Ritz Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- arch/i386/pci/mmconfig.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/i386/pci/mmconfig.c b/arch/i386/pci/mmconfig.c index e545b0992c48..972180f738d9 100644 --- a/arch/i386/pci/mmconfig.c +++ b/arch/i386/pci/mmconfig.c @@ -178,7 +178,7 @@ static __init void unreachable_devices(void) pci_exp_set_dev_base(addr, k, PCI_DEVFN(i, 0)); if (addr == 0 || readl((u32 __iomem *)mmcfg_virt_addr) != val1) { - set_bit(i, fallback_slots); + set_bit(i + 32*k, fallback_slots); printk(KERN_NOTICE "PCI: No mmconfig possible on %x:%x\n", k, i); } From 65ae4dddbb56c7415c31e9aae0b3811cb583bbea Mon Sep 17 00:00:00 2001 From: Daniel Ritz Date: Tue, 22 Aug 2006 07:29:10 -0700 Subject: [PATCH 321/488] [PATCH] PCI: fix ICH6 quirks - add the ICH6(R) LPC to the ICH6 ACPI quirks. currently only the ICH6-M is handled. [ PCI_DEVICE_ID_INTEL_ICH6_1 is the ICH6-M LPC, ICH6_0 is the ICH6(R) ] - remove the wrong quirk calling asus_hides_smbus_lpc() for ICH6. the register modified in asus_hides_smbus_lpc() has a different meaning in ICH6. Signed-off-by: Daniel Ritz Acked-by: Jean Delvare Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- drivers/pci/quirks.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 04618d4d7d74..73177429fe74 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -438,6 +438,7 @@ static void __devinit quirk_ich6_lpc_acpi(struct pci_dev *dev) pci_read_config_dword(dev, 0x48, ®ion); quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES+1, "ICH6 GPIO"); } +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_0, quirk_ich6_lpc_acpi ); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, quirk_ich6_lpc_acpi ); /* @@ -1091,7 +1092,6 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asu DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc ); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc ); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc ); -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc ); static void __init asus_hides_smbus_lpc_ich6(struct pci_dev *dev) { From cc702c2c5e5ab51e1b0d3386d447e7b1772879ee Mon Sep 17 00:00:00 2001 From: Scott Murray Date: Tue, 22 Aug 2006 19:55:57 -0400 Subject: [PATCH 322/488] [PATCH] CPCI hotplug: fix resource assignment Here is a patch against the CPCI hotplug core to fix up PCI resource assignment such that things will actually work when a hot inserted device is enabled. I mentioned this patch to you way back in April at ELC, but am only now out from under things enough to clean it up and submit it. I've basically cribbed the corresponding code from shpchp_pci.c, so there are no big surprises. If it's still possible, I wouldn't mind this going into 2.6.18, but it wouldn't be the end of the world if it went into 2.6.19. Signed-off-by: Scott Murray Signed-off-by: Greg Kroah-Hartman --- drivers/pci/hotplug/cpci_hotplug_pci.c | 52 ++++++++++++++++++++------ 1 file changed, 41 insertions(+), 11 deletions(-) diff --git a/drivers/pci/hotplug/cpci_hotplug_pci.c b/drivers/pci/hotplug/cpci_hotplug_pci.c index 02be74caa89f..4afcaffd031c 100644 --- a/drivers/pci/hotplug/cpci_hotplug_pci.c +++ b/drivers/pci/hotplug/cpci_hotplug_pci.c @@ -254,8 +254,8 @@ int cpci_led_off(struct slot* slot) int cpci_configure_slot(struct slot* slot) { - unsigned char busnr; - struct pci_bus *child; + struct pci_bus *parent; + int fn; dbg("%s - enter", __FUNCTION__); @@ -276,23 +276,53 @@ int cpci_configure_slot(struct slot* slot) */ n = pci_scan_slot(slot->bus, slot->devfn); dbg("%s: pci_scan_slot returned %d", __FUNCTION__, n); - if (n > 0) - pci_bus_add_devices(slot->bus); slot->dev = pci_get_slot(slot->bus, slot->devfn); if (slot->dev == NULL) { err("Could not find PCI device for slot %02x", slot->number); - return 1; + return -ENODEV; } } + parent = slot->dev->bus; - if (slot->dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) { - pci_read_config_byte(slot->dev, PCI_SECONDARY_BUS, &busnr); - child = pci_add_new_bus(slot->dev->bus, slot->dev, busnr); - pci_do_scan_bus(child); - pci_bus_size_bridges(child); + for (fn = 0; fn < 8; fn++) { + struct pci_dev *dev; + + dev = pci_get_slot(parent, PCI_DEVFN(PCI_SLOT(slot->devfn), fn)); + if (!dev) + continue; + if ((dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) || + (dev->hdr_type == PCI_HEADER_TYPE_CARDBUS)) { + /* Find an unused bus number for the new bridge */ + struct pci_bus *child; + unsigned char busnr, start = parent->secondary; + unsigned char end = parent->subordinate; + + for (busnr = start; busnr <= end; busnr++) { + if (!pci_find_bus(pci_domain_nr(parent), + busnr)) + break; + } + if (busnr >= end) { + err("No free bus for hot-added bridge\n"); + pci_dev_put(dev); + continue; + } + child = pci_add_new_bus(parent, dev, busnr); + if (!child) { + err("Cannot add new bus for %s\n", + pci_name(dev)); + pci_dev_put(dev); + continue; + } + child->subordinate = pci_do_scan_bus(child); + pci_bus_size_bridges(child); + } + pci_dev_put(dev); } - pci_bus_assign_resources(slot->dev->bus); + pci_bus_assign_resources(parent); + pci_bus_add_devices(parent); + pci_enable_bridges(parent); dbg("%s - exit", __FUNCTION__); return 0; From 39ba487fe22a63b3df7c543c82d01db0f0fed700 Mon Sep 17 00:00:00 2001 From: Henrik Kretzschmar Date: Tue, 15 Aug 2006 10:57:16 +0200 Subject: [PATCH 323/488] [PATCH] PCI: kerneldoc correction in pci-driver Removes an unused kerneldoc entry from pci_match_device and put the others into correct order. Signed-off-by: Henrik Kretzschmar Signed-off-by: Greg Kroah-Hartman --- drivers/pci/pci-driver.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index 10e1a905c144..474e9cd0e9e4 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -139,9 +139,8 @@ const struct pci_device_id *pci_match_id(const struct pci_device_id *ids, /** * pci_match_device - Tell if a PCI device structure has a matching * PCI device id structure - * @ids: array of PCI device id structures to search in - * @dev: the PCI device structure to match against * @drv: the PCI driver to match against + * @dev: the PCI device structure to match against * * Used by a driver to check whether a PCI device present in the * system is in its list of supported devices. Returns the matching From b93b58eea81beacac55770dd39e34fbffdc36000 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Mon, 14 Aug 2006 17:32:51 -0700 Subject: [PATCH 324/488] [PATCH] USB: fix bug in cypress_cy7c63.c driver This was pointed out by Adrian Bunk , as found by the Coverity Checker. Cc: Adrian Bunk Cc: Oliver Bock Signed-off-by: Greg Kroah-Hartman --- drivers/usb/misc/cypress_cy7c63.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/misc/cypress_cy7c63.c b/drivers/usb/misc/cypress_cy7c63.c index a4062a6adbb8..9c46746d5d00 100644 --- a/drivers/usb/misc/cypress_cy7c63.c +++ b/drivers/usb/misc/cypress_cy7c63.c @@ -208,7 +208,7 @@ static int cypress_probe(struct usb_interface *interface, /* allocate memory for our device state and initialize it */ dev = kzalloc(sizeof(*dev), GFP_KERNEL); if (dev == NULL) { - dev_err(&dev->udev->dev, "Out of memory!\n"); + dev_err(&interface->dev, "Out of memory!\n"); goto error; } From be729523369ec7825bde4a0e774ee7932e9d3dff Mon Sep 17 00:00:00 2001 From: Tomasz Kazmierczak Date: Fri, 18 Aug 2006 23:43:29 +0200 Subject: [PATCH 325/488] [PATCH] USB: pl2303: removed support for OTi's DKU-5 clone cable This patch removes support for a clone of Nokia DKU-5 cable made by Ours Technology Inc, as it turned out that the cable does not use the pl2303 chip, but OTI-6858 chip which is not compatible with the pl2303. Signed-off-by: Tomasz Kazmierczak Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/pl2303.c | 1 - drivers/usb/serial/pl2303.h | 4 ---- 2 files changed, 5 deletions(-) diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index efbbc0adb89a..65e4d046951a 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -79,7 +79,6 @@ static struct usb_device_id id_table [] = { { USB_DEVICE(SAGEM_VENDOR_ID, SAGEM_PRODUCT_ID) }, { USB_DEVICE(LEADTEK_VENDOR_ID, LEADTEK_9531_PRODUCT_ID) }, { USB_DEVICE(SPEEDDRAGON_VENDOR_ID, SPEEDDRAGON_PRODUCT_ID) }, - { USB_DEVICE(OTI_VENDOR_ID, OTI_PRODUCT_ID) }, { USB_DEVICE(DATAPILOT_U2_VENDOR_ID, DATAPILOT_U2_PRODUCT_ID) }, { USB_DEVICE(BELKIN_VENDOR_ID, BELKIN_PRODUCT_ID) }, { } /* Terminating entry */ diff --git a/drivers/usb/serial/pl2303.h b/drivers/usb/serial/pl2303.h index a692ac66ca6c..55195e76eb6f 100644 --- a/drivers/usb/serial/pl2303.h +++ b/drivers/usb/serial/pl2303.h @@ -82,10 +82,6 @@ #define SPEEDDRAGON_VENDOR_ID 0x0e55 #define SPEEDDRAGON_PRODUCT_ID 0x110b -/* Ours Technology Inc DKU-5 clone, chipset: Prolific Technology Inc */ -#define OTI_VENDOR_ID 0x0ea0 -#define OTI_PRODUCT_ID 0x6858 - /* DATAPILOT Universal-2 Phone Cable */ #define DATAPILOT_U2_VENDOR_ID 0x0731 #define DATAPILOT_U2_PRODUCT_ID 0x2003 From 94918ff68a7c78fdd3241d13e18444ef80b8ff4a Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Mon, 14 Aug 2006 11:40:46 -0400 Subject: [PATCH 326/488] [PATCH] unusual_devs update for UCR-61S2B The existing unusual_devs entry for the UCR-61S2B appears to have too wide a revision range. It matches at least one device that doesn't respond to the initialization sequence. Perhaps the sequence needs to be updated, or perhaps something else can be done. For now, this patch (as764) restricts the range to include only the revision mentioned in the original comment. This resolves (for now!) Bugzilla entry #6950. Signed-off-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- drivers/usb/storage/unusual_devs.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h index fd158e063c06..4a803d69fa36 100644 --- a/drivers/usb/storage/unusual_devs.h +++ b/drivers/usb/storage/unusual_devs.h @@ -1261,7 +1261,7 @@ UNUSUAL_DEV( 0x0fce, 0xd008, 0x0000, 0x0000, * Tested on hardware version 1.10. * Entry is needed only for the initializer function override. */ -UNUSUAL_DEV( 0x1019, 0x0c55, 0x0000, 0x9999, +UNUSUAL_DEV( 0x1019, 0x0c55, 0x0110, 0x0110, "Desknote", "UCR-61S2B", US_SC_DEVICE, US_PR_DEVICE, usb_stor_ucr61s2b_init, From a23b423ec0573ead85e2c92f2a5df5d4bf47e26b Mon Sep 17 00:00:00 2001 From: Krzysztof Helt Date: Fri, 25 Aug 2006 00:46:02 -0700 Subject: [PATCH 327/488] [SPARC]: enabling of the 2nd CPU in 2.6.18-rc4 smp_setup_cpu_possible_map() needs to run after paging_init() so that the in-kernel device tree is setup. Signed-off-by: Krzysztof Helt Signed-off-by: David S. Miller --- arch/sparc/kernel/setup.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/sparc/kernel/setup.c b/arch/sparc/kernel/setup.c index 35488d6c7457..0251cab4708b 100644 --- a/arch/sparc/kernel/setup.c +++ b/arch/sparc/kernel/setup.c @@ -348,9 +348,9 @@ void __init setup_arch(char **cmdline_p) init_mm.context = (unsigned long) NO_CONTEXT; init_task.thread.kregs = &fake_swapper_regs; - smp_setup_cpu_possible_map(); - paging_init(); + + smp_setup_cpu_possible_map(); } static int __init set_preferred_console(void) From 5fec811e99bb6f537e67b6bcbe9fe6505aa8a114 Mon Sep 17 00:00:00 2001 From: Krzysztof Helt Date: Fri, 25 Aug 2006 16:22:21 -0700 Subject: [PATCH 328/488] [SPARC]: Small smp cleanup. It moves the smp_procesors_ready variable to sun4d_smp.c only. Signed-off-by: Krzysztof Helt (krzysztof.h1@wp.pl) Signed-off-by: David S. Miller --- arch/sparc/kernel/smp.c | 1 - arch/sparc/kernel/sun4d_smp.c | 2 +- arch/sparc/kernel/sun4m_smp.c | 2 -- 3 files changed, 1 insertion(+), 4 deletions(-) diff --git a/arch/sparc/kernel/smp.c b/arch/sparc/kernel/smp.c index e311ade1b490..276f22881d0f 100644 --- a/arch/sparc/kernel/smp.c +++ b/arch/sparc/kernel/smp.c @@ -34,7 +34,6 @@ #include #include -volatile int smp_processors_ready = 0; int smp_num_cpus = 1; volatile unsigned long cpu_callin_map[NR_CPUS] __initdata = {0,}; unsigned char boot_cpu_id = 0; diff --git a/arch/sparc/kernel/sun4d_smp.c b/arch/sparc/kernel/sun4d_smp.c index ba843f6a2832..3ff4edd32815 100644 --- a/arch/sparc/kernel/sun4d_smp.c +++ b/arch/sparc/kernel/sun4d_smp.c @@ -42,7 +42,7 @@ extern ctxd_t *srmmu_ctx_table_phys; extern void calibrate_delay(void); -extern volatile int smp_processors_ready; +static volatile int smp_processors_ready = 0; static int smp_highest_cpu; extern volatile unsigned long cpu_callin_map[NR_CPUS]; extern cpuinfo_sparc cpu_data[NR_CPUS]; diff --git a/arch/sparc/kernel/sun4m_smp.c b/arch/sparc/kernel/sun4m_smp.c index 3b32096134aa..7d4a649138f6 100644 --- a/arch/sparc/kernel/sun4m_smp.c +++ b/arch/sparc/kernel/sun4m_smp.c @@ -39,7 +39,6 @@ extern ctxd_t *srmmu_ctx_table_phys; extern void calibrate_delay(void); -extern volatile int smp_processors_ready; extern volatile unsigned long cpu_callin_map[NR_CPUS]; extern unsigned char boot_cpu_id; @@ -217,7 +216,6 @@ void __init smp4m_smp_done(void) } /* Ok, they are spinning and ready to go. */ - smp_processors_ready = 1; } /* At each hardware IRQ, we get this called to forward IRQ reception From 81a42d298d8bd1b96be4bd459494f25fdd99b594 Mon Sep 17 00:00:00 2001 From: Jeff Mahoney Date: Fri, 25 Aug 2006 15:58:57 -0700 Subject: [PATCH 329/488] [DISKLABEL] SUN: Fix signed int usage for sector count The current sun disklabel code uses a signed int for the sector count. When partitions larger than 1 TB are used, the cast to a sector_t causes the partition sizes to be invalid: # cat /proc/paritions | grep sdan 66 112 2146435072 sdan 66 115 9223372036853660736 sdan3 66 120 9223372036853660736 sdan8 This patch switches the sector count to an unsigned int to fix this. Signed-off-by: Jeff Mahoney Signed-off-by: Andrew Morton Signed-off-by: David S. Miller --- fs/partitions/sun.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/partitions/sun.c b/fs/partitions/sun.c index abe91ca03edf..0a5927c806ca 100644 --- a/fs/partitions/sun.c +++ b/fs/partitions/sun.c @@ -74,7 +74,7 @@ int sun_partition(struct parsed_partitions *state, struct block_device *bdev) spc = be16_to_cpu(label->ntrks) * be16_to_cpu(label->nsect); for (i = 0; i < 8; i++, p++) { unsigned long st_sector; - int num_sectors; + unsigned int num_sectors; st_sector = be32_to_cpu(p->start_cylinder) * spc; num_sectors = be32_to_cpu(p->num_sectors); From 897522ea1c20691b6a65f32f03ae4e77e508b31c Mon Sep 17 00:00:00 2001 From: Evgeniy Polyakov Date: Fri, 25 Aug 2006 00:52:06 -0700 Subject: [PATCH 330/488] [CONNECTOR]: Add userspace example code into Documentation/connector/ I was asked several times to include userspace example code into Documentation, so if there is no policy against it, consider attached patch for 2.6.18. This program works with included Documentation/connector/cn_test.c connector module. Signed-off-by: Evgeniy Polyakov Signed-off-by: David S. Miller --- Documentation/connector/ucon.c | 206 +++++++++++++++++++++++++++++++++ 1 file changed, 206 insertions(+) create mode 100644 Documentation/connector/ucon.c diff --git a/Documentation/connector/ucon.c b/Documentation/connector/ucon.c new file mode 100644 index 000000000000..d738cde2a8d5 --- /dev/null +++ b/Documentation/connector/ucon.c @@ -0,0 +1,206 @@ +/* + * ucon.c + * + * Copyright (c) 2004+ Evgeniy Polyakov + * + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include + +#include +#include +#include + +#include +#include + +#include + +#include +#include +#include +#include +#include +#include + +#include + +#define DEBUG +#define NETLINK_CONNECTOR 11 + +#ifdef DEBUG +#define ulog(f, a...) fprintf(stdout, f, ##a) +#else +#define ulog(f, a...) do {} while (0) +#endif + +static int need_exit; +static __u32 seq; + +static int netlink_send(int s, struct cn_msg *msg) +{ + struct nlmsghdr *nlh; + unsigned int size; + int err; + char buf[128]; + struct cn_msg *m; + + size = NLMSG_SPACE(sizeof(struct cn_msg) + msg->len); + + nlh = (struct nlmsghdr *)buf; + nlh->nlmsg_seq = seq++; + nlh->nlmsg_pid = getpid(); + nlh->nlmsg_type = NLMSG_DONE; + nlh->nlmsg_len = NLMSG_LENGTH(size - sizeof(*nlh)); + nlh->nlmsg_flags = 0; + + m = NLMSG_DATA(nlh); +#if 0 + ulog("%s: [%08x.%08x] len=%u, seq=%u, ack=%u.\n", + __func__, msg->id.idx, msg->id.val, msg->len, msg->seq, msg->ack); +#endif + memcpy(m, msg, sizeof(*m) + msg->len); + + err = send(s, nlh, size, 0); + if (err == -1) + ulog("Failed to send: %s [%d].\n", + strerror(errno), errno); + + return err; +} + +int main(int argc, char *argv[]) +{ + int s; + char buf[1024]; + int len; + struct nlmsghdr *reply; + struct sockaddr_nl l_local; + struct cn_msg *data; + FILE *out; + time_t tm; + struct pollfd pfd; + + if (argc < 2) + out = stdout; + else { + out = fopen(argv[1], "a+"); + if (!out) { + ulog("Unable to open %s for writing: %s\n", + argv[1], strerror(errno)); + out = stdout; + } + } + + memset(buf, 0, sizeof(buf)); + + s = socket(PF_NETLINK, SOCK_DGRAM, NETLINK_CONNECTOR); + if (s == -1) { + perror("socket"); + return -1; + } + + l_local.nl_family = AF_NETLINK; + l_local.nl_groups = 0x123; /* bitmask of requested groups */ + l_local.nl_pid = 0; + + if (bind(s, (struct sockaddr *)&l_local, sizeof(struct sockaddr_nl)) == -1) { + perror("bind"); + close(s); + return -1; + } + +#if 0 + { + int on = 0x57; /* Additional group number */ + setsockopt(s, SOL_NETLINK, NETLINK_ADD_MEMBERSHIP, &on, sizeof(on)); + } +#endif + if (0) { + int i, j; + + memset(buf, 0, sizeof(buf)); + + data = (struct cn_msg *)buf; + + data->id.idx = 0x123; + data->id.val = 0x456; + data->seq = seq++; + data->ack = 0; + data->len = 0; + + for (j=0; j<10; ++j) { + for (i=0; i<1000; ++i) { + len = netlink_send(s, data); + } + + ulog("%d messages have been sent to %08x.%08x.\n", i, data->id.idx, data->id.val); + } + + return 0; + } + + + pfd.fd = s; + + while (!need_exit) { + pfd.events = POLLIN; + pfd.revents = 0; + switch (poll(&pfd, 1, -1)) { + case 0: + need_exit = 1; + break; + case -1: + if (errno != EINTR) { + need_exit = 1; + break; + } + continue; + } + if (need_exit) + break; + + memset(buf, 0, sizeof(buf)); + len = recv(s, buf, sizeof(buf), 0); + if (len == -1) { + perror("recv buf"); + close(s); + return -1; + } + reply = (struct nlmsghdr *)buf; + + switch (reply->nlmsg_type) { + case NLMSG_ERROR: + fprintf(out, "Error message received.\n"); + fflush(out); + break; + case NLMSG_DONE: + data = (struct cn_msg *)NLMSG_DATA(reply); + + time(&tm); + fprintf(out, "%.24s : [%x.%x] [%08u.%08u].\n", + ctime(&tm), data->id.idx, data->id.val, data->seq, data->ack); + fflush(out); + break; + default: + break; + } + } + + close(s); + return 0; +} From 59eed279c5daa88d95e429782ddb8ef87e52c44b Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Fri, 25 Aug 2006 15:55:43 -0700 Subject: [PATCH 331/488] [IPV6]: Segmentation offload not set correctly on TCP children TCP over IPV6 would incorrectly inherit the GSO settings. This would cause kernel to send Tcp Segmentation Offload packets for IPV6 data to devices that can't handle it. It caused the sky2 driver to lock http://bugzilla.kernel.org/show_bug.cgi?id=7050 and the e1000 would generate bogus packets. I can't blame the hardware for gagging if the upper layers feed it garbage. This was a new bug in 2.6.18 introduced with GSO support. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller --- net/ipv6/tcp_ipv6.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index b843a650be71..802a1a6b1037 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -944,7 +944,7 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb, * comment in that function for the gory details. -acme */ - sk->sk_gso_type = SKB_GSO_TCPV6; + newsk->sk_gso_type = SKB_GSO_TCPV6; __ip6_dst_store(newsk, dst, NULL); newtcp6sk = (struct tcp6_sock *)newsk; From f3166c07175c1639687288006aeabed363a921f3 Mon Sep 17 00:00:00 2001 From: Ian McDonald Date: Sat, 26 Aug 2006 19:01:03 -0700 Subject: [PATCH 332/488] [DCCP]: Fix typo This fixes a small typo in net/dccp/libs/packet_history.c Signed off by: Ian McDonald Signed-off-by: David S. Miller --- net/dccp/ccids/lib/packet_history.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/dccp/ccids/lib/packet_history.c b/net/dccp/ccids/lib/packet_history.c index ad98d6a322eb..6739be1681c9 100644 --- a/net/dccp/ccids/lib/packet_history.c +++ b/net/dccp/ccids/lib/packet_history.c @@ -1,5 +1,5 @@ /* - * net/dccp/packet_history.h + * net/dccp/packet_history.c * * Copyright (c) 2005 The University of Waikato, Hamilton, New Zealand. * From e6bccd357343e98db9e1fd0d487f4f924e1a7921 Mon Sep 17 00:00:00 2001 From: Ian McDonald Date: Sat, 26 Aug 2006 19:01:30 -0700 Subject: [PATCH 333/488] [DCCP]: Update contact details and copyright Just updating copyright and contacts Signed off by: Ian McDonald Signed-off-by: David S. Miller --- CREDITS | 2 +- net/dccp/ccids/ccid3.c | 4 ++-- net/dccp/ccids/ccid3.h | 4 ++-- net/dccp/ccids/lib/loss_interval.c | 2 +- net/dccp/ccids/lib/loss_interval.h | 2 +- net/dccp/ccids/lib/packet_history.c | 6 +++--- net/dccp/ccids/lib/packet_history.h | 4 ++-- net/dccp/ccids/lib/tfrc.h | 2 +- net/dccp/ccids/lib/tfrc_equation.c | 2 +- net/dccp/dccp.h | 2 +- net/dccp/options.c | 2 +- 11 files changed, 16 insertions(+), 16 deletions(-) diff --git a/CREDITS b/CREDITS index 29be6d1fdf49..0fe904ebb7c7 100644 --- a/CREDITS +++ b/CREDITS @@ -2209,7 +2209,7 @@ S: (address available on request) S: USA N: Ian McDonald -E: iam4@cs.waikato.ac.nz +E: ian.mcdonald@jandi.co.nz E: imcdnzl@gmail.com W: http://wand.net.nz/~iam4 W: http://imcdnzl.blogspot.com diff --git a/net/dccp/ccids/ccid3.c b/net/dccp/ccids/ccid3.c index c39bff706cfc..0f85970ee6d1 100644 --- a/net/dccp/ccids/ccid3.c +++ b/net/dccp/ccids/ccid3.c @@ -2,7 +2,7 @@ * net/dccp/ccids/ccid3.c * * Copyright (c) 2005 The University of Waikato, Hamilton, New Zealand. - * Copyright (c) 2005-6 Ian McDonald + * Copyright (c) 2005-6 Ian McDonald * * An implementation of the DCCP protocol * @@ -1230,7 +1230,7 @@ static __exit void ccid3_module_exit(void) } module_exit(ccid3_module_exit); -MODULE_AUTHOR("Ian McDonald , " +MODULE_AUTHOR("Ian McDonald , " "Arnaldo Carvalho de Melo "); MODULE_DESCRIPTION("DCCP TFRC CCID3 CCID"); MODULE_LICENSE("GPL"); diff --git a/net/dccp/ccids/ccid3.h b/net/dccp/ccids/ccid3.h index 5ade4f668b22..22cb9f80a09d 100644 --- a/net/dccp/ccids/ccid3.h +++ b/net/dccp/ccids/ccid3.h @@ -1,13 +1,13 @@ /* * net/dccp/ccids/ccid3.h * - * Copyright (c) 2005 The University of Waikato, Hamilton, New Zealand. + * Copyright (c) 2005-6 The University of Waikato, Hamilton, New Zealand. * * An implementation of the DCCP protocol * * This code has been developed by the University of Waikato WAND * research group. For further information please see http://www.wand.net.nz/ - * or e-mail Ian McDonald - iam4@cs.waikato.ac.nz + * or e-mail Ian McDonald - ian.mcdonald@jandi.co.nz * * This code also uses code from Lulea University, rereleased as GPL by its * authors: diff --git a/net/dccp/ccids/lib/loss_interval.c b/net/dccp/ccids/lib/loss_interval.c index 5d7b7d864385..b93d9fc98cb8 100644 --- a/net/dccp/ccids/lib/loss_interval.c +++ b/net/dccp/ccids/lib/loss_interval.c @@ -2,7 +2,7 @@ * net/dccp/ccids/lib/loss_interval.c * * Copyright (c) 2005 The University of Waikato, Hamilton, New Zealand. - * Copyright (c) 2005 Ian McDonald + * Copyright (c) 2005-6 Ian McDonald * Copyright (c) 2005 Arnaldo Carvalho de Melo * * This program is free software; you can redistribute it and/or modify diff --git a/net/dccp/ccids/lib/loss_interval.h b/net/dccp/ccids/lib/loss_interval.h index 43bf78269d1d..dcb370a53f57 100644 --- a/net/dccp/ccids/lib/loss_interval.h +++ b/net/dccp/ccids/lib/loss_interval.h @@ -4,7 +4,7 @@ * net/dccp/ccids/lib/loss_interval.h * * Copyright (c) 2005 The University of Waikato, Hamilton, New Zealand. - * Copyright (c) 2005 Ian McDonald + * Copyright (c) 2005 Ian McDonald * Copyright (c) 2005 Arnaldo Carvalho de Melo * * This program is free software; you can redistribute it and/or modify it diff --git a/net/dccp/ccids/lib/packet_history.c b/net/dccp/ccids/lib/packet_history.c index 6739be1681c9..7b6b03e9271a 100644 --- a/net/dccp/ccids/lib/packet_history.c +++ b/net/dccp/ccids/lib/packet_history.c @@ -1,13 +1,13 @@ /* * net/dccp/packet_history.c * - * Copyright (c) 2005 The University of Waikato, Hamilton, New Zealand. + * Copyright (c) 2005-6 The University of Waikato, Hamilton, New Zealand. * * An implementation of the DCCP protocol * * This code has been developed by the University of Waikato WAND * research group. For further information please see http://www.wand.net.nz/ - * or e-mail Ian McDonald - iam4@cs.waikato.ac.nz + * or e-mail Ian McDonald - ian.mcdonald@jandi.co.nz * * This code also uses code from Lulea University, rereleased as GPL by its * authors: @@ -391,7 +391,7 @@ void dccp_tx_hist_purge(struct dccp_tx_hist *hist, struct list_head *list) EXPORT_SYMBOL_GPL(dccp_tx_hist_purge); -MODULE_AUTHOR("Ian McDonald , " +MODULE_AUTHOR("Ian McDonald , " "Arnaldo Carvalho de Melo "); MODULE_DESCRIPTION("DCCP TFRC library"); MODULE_LICENSE("GPL"); diff --git a/net/dccp/ccids/lib/packet_history.h b/net/dccp/ccids/lib/packet_history.h index 673c209e4e85..27c43092636c 100644 --- a/net/dccp/ccids/lib/packet_history.h +++ b/net/dccp/ccids/lib/packet_history.h @@ -1,13 +1,13 @@ /* * net/dccp/packet_history.h * - * Copyright (c) 2005 The University of Waikato, Hamilton, New Zealand. + * Copyright (c) 2005-6 The University of Waikato, Hamilton, New Zealand. * * An implementation of the DCCP protocol * * This code has been developed by the University of Waikato WAND * research group. For further information please see http://www.wand.net.nz/ - * or e-mail Ian McDonald - iam4@cs.waikato.ac.nz + * or e-mail Ian McDonald - ian.mcdonald@jandi.co.nz * * This code also uses code from Lulea University, rereleased as GPL by its * authors: diff --git a/net/dccp/ccids/lib/tfrc.h b/net/dccp/ccids/lib/tfrc.h index 130c4c40cfe3..45f30f59ea2a 100644 --- a/net/dccp/ccids/lib/tfrc.h +++ b/net/dccp/ccids/lib/tfrc.h @@ -4,7 +4,7 @@ * net/dccp/ccids/lib/tfrc.h * * Copyright (c) 2005 The University of Waikato, Hamilton, New Zealand. - * Copyright (c) 2005 Ian McDonald + * Copyright (c) 2005 Ian McDonald * Copyright (c) 2005 Arnaldo Carvalho de Melo * Copyright (c) 2003 Nils-Erik Mattsson, Joacim Haggmark, Magnus Erixzon * diff --git a/net/dccp/ccids/lib/tfrc_equation.c b/net/dccp/ccids/lib/tfrc_equation.c index 4fd2ebebf5a0..44076e0c6591 100644 --- a/net/dccp/ccids/lib/tfrc_equation.c +++ b/net/dccp/ccids/lib/tfrc_equation.c @@ -2,7 +2,7 @@ * net/dccp/ccids/lib/tfrc_equation.c * * Copyright (c) 2005 The University of Waikato, Hamilton, New Zealand. - * Copyright (c) 2005 Ian McDonald + * Copyright (c) 2005 Ian McDonald * Copyright (c) 2005 Arnaldo Carvalho de Melo * Copyright (c) 2003 Nils-Erik Mattsson, Joacim Haggmark, Magnus Erixzon * diff --git a/net/dccp/dccp.h b/net/dccp/dccp.h index d00a2f4ee5dd..b8931d33bec3 100644 --- a/net/dccp/dccp.h +++ b/net/dccp/dccp.h @@ -5,7 +5,7 @@ * * An implementation of the DCCP protocol * Copyright (c) 2005 Arnaldo Carvalho de Melo - * Copyright (c) 2005 Ian McDonald + * Copyright (c) 2005-6 Ian McDonald * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as diff --git a/net/dccp/options.c b/net/dccp/options.c index daf72bb671f0..07a34696ac97 100644 --- a/net/dccp/options.c +++ b/net/dccp/options.c @@ -4,7 +4,7 @@ * An implementation of the DCCP protocol * Copyright (c) 2005 Aristeu Sergio Rozanski Filho * Copyright (c) 2005 Arnaldo Carvalho de Melo - * Copyright (c) 2005 Ian McDonald + * Copyright (c) 2005 Ian McDonald * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License From 837d107cd101fbf734e9ea2bbb5c7336a329e432 Mon Sep 17 00:00:00 2001 From: Ian McDonald Date: Sat, 26 Aug 2006 19:06:42 -0700 Subject: [PATCH 334/488] [DCCP]: Introduces follows48 function This adds a new function to see if two sequence numbers follow each other. Signed off by: Ian McDonald Signed-off-by: David S. Miller --- net/dccp/dccp.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/net/dccp/dccp.h b/net/dccp/dccp.h index b8931d33bec3..a5c5475724c0 100644 --- a/net/dccp/dccp.h +++ b/net/dccp/dccp.h @@ -81,6 +81,14 @@ static inline u64 max48(const u64 seq1, const u64 seq2) return after48(seq1, seq2) ? seq1 : seq2; } +/* is seq1 next seqno after seq2 */ +static inline int follows48(const u64 seq1, const u64 seq2) +{ + int diff = (seq1 & 0xFFFF) - (seq2 & 0xFFFF); + + return diff==1; +} + enum { DCCP_MIB_NUM = 0, DCCP_MIB_ACTIVEOPENS, /* ActiveOpens */ From 80193aee18bc862e284ba18504f3a3e14706a997 Mon Sep 17 00:00:00 2001 From: Ian McDonald Date: Sat, 26 Aug 2006 19:07:36 -0700 Subject: [PATCH 335/488] [DCCP]: Introduce dccp_rx_hist_find_entry This adds a new function dccp_rx_hist_find_entry. Signed off by: Ian McDonald Signed-off-by: David S. Miller --- net/dccp/ccids/lib/packet_history.c | 19 +++++++++++++++++++ net/dccp/ccids/lib/packet_history.h | 2 ++ 2 files changed, 21 insertions(+) diff --git a/net/dccp/ccids/lib/packet_history.c b/net/dccp/ccids/lib/packet_history.c index 7b6b03e9271a..420c60f8604d 100644 --- a/net/dccp/ccids/lib/packet_history.c +++ b/net/dccp/ccids/lib/packet_history.c @@ -365,6 +365,25 @@ struct dccp_tx_hist_entry * EXPORT_SYMBOL_GPL(dccp_tx_hist_find_entry); +int dccp_rx_hist_find_entry(const struct list_head *list, const u64 seq, + u8 *ccval) +{ + struct dccp_rx_hist_entry *packet = NULL, *entry; + + list_for_each_entry(entry, list, dccphrx_node) + if (entry->dccphrx_seqno == seq) { + packet = entry; + break; + } + + if (packet) + *ccval = packet->dccphrx_ccval; + + return packet != NULL; +} + +EXPORT_SYMBOL_GPL(dccp_rx_hist_find_entry); + void dccp_tx_hist_purge_older(struct dccp_tx_hist *hist, struct list_head *list, struct dccp_tx_hist_entry *packet) diff --git a/net/dccp/ccids/lib/packet_history.h b/net/dccp/ccids/lib/packet_history.h index 27c43092636c..aea9c5d70910 100644 --- a/net/dccp/ccids/lib/packet_history.h +++ b/net/dccp/ccids/lib/packet_history.h @@ -106,6 +106,8 @@ static inline void dccp_tx_hist_entry_delete(struct dccp_tx_hist *hist, extern struct dccp_tx_hist_entry * dccp_tx_hist_find_entry(const struct list_head *list, const u64 seq); +extern int dccp_rx_hist_find_entry(const struct list_head *list, const u64 seq, + u8 *ccval); static inline void dccp_tx_hist_add_entry(struct list_head *list, struct dccp_tx_hist_entry *entry) From 3a13813e6effcfad5910d47b15b724621b50b878 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Sat, 26 Aug 2006 20:28:30 -0700 Subject: [PATCH 336/488] [BRIDGE] netfilter: memory corruption fix The bridge-netfilter code will overwrite memory if there is not headroom in the skb to save the header. This first showed up when using Xen with sky2 driver that doesn't allocate the extra space. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller --- include/linux/netfilter_bridge.h | 14 ++++++++++++-- net/bridge/br_forward.c | 10 +++++++--- 2 files changed, 19 insertions(+), 5 deletions(-) diff --git a/include/linux/netfilter_bridge.h b/include/linux/netfilter_bridge.h index 10c13dc4665b..427c67ff89e9 100644 --- a/include/linux/netfilter_bridge.h +++ b/include/linux/netfilter_bridge.h @@ -48,15 +48,25 @@ enum nf_br_hook_priorities { /* Only used in br_forward.c */ static inline -void nf_bridge_maybe_copy_header(struct sk_buff *skb) +int nf_bridge_maybe_copy_header(struct sk_buff *skb) { + int err; + if (skb->nf_bridge) { if (skb->protocol == __constant_htons(ETH_P_8021Q)) { + err = skb_cow(skb, 18); + if (err) + return err; memcpy(skb->data - 18, skb->nf_bridge->data, 18); skb_push(skb, 4); - } else + } else { + err = skb_cow(skb, 16); + if (err) + return err; memcpy(skb->data - 16, skb->nf_bridge->data, 16); + } } + return 0; } /* This is called by the IP fragmenting code and it ensures there is diff --git a/net/bridge/br_forward.c b/net/bridge/br_forward.c index 6ccd32b30809..864fbbc7b24d 100644 --- a/net/bridge/br_forward.c +++ b/net/bridge/br_forward.c @@ -40,11 +40,15 @@ int br_dev_queue_push_xmit(struct sk_buff *skb) else { #ifdef CONFIG_BRIDGE_NETFILTER /* ip_refrag calls ip_fragment, doesn't copy the MAC header. */ - nf_bridge_maybe_copy_header(skb); + if (nf_bridge_maybe_copy_header(skb)) + kfree_skb(skb); + else #endif - skb_push(skb, ETH_HLEN); + { + skb_push(skb, ETH_HLEN); - dev_queue_xmit(skb); + dev_queue_xmit(skb); + } } return 0; From 66a377c5041e1e399633153c8b500d457281e7c1 Mon Sep 17 00:00:00 2001 From: Ian McDonald Date: Sat, 26 Aug 2006 23:40:50 -0700 Subject: [PATCH 337/488] [DCCP]: Fix CCID3 This fixes CCID3 to give much closer performance to RFC4342. CCID3 is meant to alter sending rate based on RTT and loss. The performance was verified against: http://wand.net.nz/~perry/max_download.php For example I tested with netem and had the following parameters: Delayed Acks 1, MSS 256 bytes, RTT 105 ms, packet loss 5%. This gives a theoretical speed of 71.9 Kbits/s. I measured across three runs with this patch set and got 70.1 Kbits/s. Without this patchset the average was 232 Kbits/s which means Linux can't be used for CCID3 research properly. I also tested with netem turned off so box just acting as router with 1.2 msec RTT. The performance with this is the same with or without the patch at around 30 Mbit/s. Signed off by: Ian McDonald Signed-off-by: David S. Miller --- net/dccp/ccids/ccid3.c | 151 ++++++++++++++++++++++------ net/dccp/ccids/ccid3.h | 5 +- net/dccp/ccids/lib/loss_interval.c | 34 +++---- net/dccp/ccids/lib/loss_interval.h | 7 +- net/dccp/ccids/lib/packet_history.c | 141 ++------------------------ net/dccp/ccids/lib/packet_history.h | 11 +- 6 files changed, 155 insertions(+), 194 deletions(-) diff --git a/net/dccp/ccids/ccid3.c b/net/dccp/ccids/ccid3.c index 0f85970ee6d1..090bc39e8199 100644 --- a/net/dccp/ccids/ccid3.c +++ b/net/dccp/ccids/ccid3.c @@ -342,6 +342,8 @@ static int ccid3_hc_tx_send_packet(struct sock *sk, new_packet->dccphtx_ccval = DCCP_SKB_CB(skb)->dccpd_ccval = hctx->ccid3hctx_last_win_count; + timeval_add_usecs(&hctx->ccid3hctx_t_nom, + hctx->ccid3hctx_t_ipi); } out: return rc; @@ -413,7 +415,8 @@ static void ccid3_hc_tx_packet_sent(struct sock *sk, int more, int len) case TFRC_SSTATE_NO_FBACK: case TFRC_SSTATE_FBACK: if (len > 0) { - hctx->ccid3hctx_t_nom = now; + timeval_sub_usecs(&hctx->ccid3hctx_t_nom, + hctx->ccid3hctx_t_ipi); ccid3_calc_new_t_ipi(hctx); ccid3_calc_new_delta(hctx); timeval_add_usecs(&hctx->ccid3hctx_t_nom, @@ -757,8 +760,7 @@ static void ccid3_hc_rx_send_feedback(struct sock *sk) } hcrx->ccid3hcrx_tstamp_last_feedback = now; - hcrx->ccid3hcrx_last_counter = packet->dccphrx_ccval; - hcrx->ccid3hcrx_seqno_last_counter = packet->dccphrx_seqno; + hcrx->ccid3hcrx_ccval_last_counter = packet->dccphrx_ccval; hcrx->ccid3hcrx_bytes_recv = 0; /* Convert to multiples of 10us */ @@ -782,7 +784,7 @@ static int ccid3_hc_rx_insert_options(struct sock *sk, struct sk_buff *skb) if (!(sk->sk_state == DCCP_OPEN || sk->sk_state == DCCP_PARTOPEN)) return 0; - DCCP_SKB_CB(skb)->dccpd_ccval = hcrx->ccid3hcrx_last_counter; + DCCP_SKB_CB(skb)->dccpd_ccval = hcrx->ccid3hcrx_ccval_last_counter; if (dccp_packet_without_ack(skb)) return 0; @@ -854,6 +856,11 @@ static u32 ccid3_hc_rx_calc_first_li(struct sock *sk) interval = 1; } found: + if (!tail) { + LIMIT_NETDEBUG(KERN_WARNING "%s: tail is null\n", + __FUNCTION__); + return ~0; + } rtt = timeval_delta(&tstamp, &tail->dccphrx_tstamp) * 4 / interval; ccid3_pr_debug("%s, sk=%p, approximated RTT to %uus\n", dccp_role(sk), sk, rtt); @@ -864,9 +871,20 @@ found: delta = timeval_delta(&tstamp, &hcrx->ccid3hcrx_tstamp_last_feedback); x_recv = usecs_div(hcrx->ccid3hcrx_bytes_recv, delta); + if (x_recv == 0) + x_recv = hcrx->ccid3hcrx_x_recv; + tmp1 = (u64)x_recv * (u64)rtt; do_div(tmp1,10000000); tmp2 = (u32)tmp1; + + if (!tmp2) { + LIMIT_NETDEBUG(KERN_WARNING "tmp2 = 0 " + "%s: x_recv = %u, rtt =%u\n", + __FUNCTION__, x_recv, rtt); + return ~0; + } + fval = (hcrx->ccid3hcrx_s * 100000) / tmp2; /* do not alter order above or you will get overflow on 32 bit */ p = tfrc_calc_x_reverse_lookup(fval); @@ -882,31 +900,101 @@ found: static void ccid3_hc_rx_update_li(struct sock *sk, u64 seq_loss, u8 win_loss) { struct ccid3_hc_rx_sock *hcrx = ccid3_hc_rx_sk(sk); + struct dccp_li_hist_entry *next, *head; + u64 seq_temp; - if (seq_loss != DCCP_MAX_SEQNO + 1 && - list_empty(&hcrx->ccid3hcrx_li_hist)) { - struct dccp_li_hist_entry *li_tail; - - li_tail = dccp_li_hist_interval_new(ccid3_li_hist, - &hcrx->ccid3hcrx_li_hist, - seq_loss, win_loss); - if (li_tail == NULL) + if (list_empty(&hcrx->ccid3hcrx_li_hist)) { + if (!dccp_li_hist_interval_new(ccid3_li_hist, + &hcrx->ccid3hcrx_li_hist, seq_loss, win_loss)) return; - li_tail->dccplih_interval = ccid3_hc_rx_calc_first_li(sk); - } else - LIMIT_NETDEBUG(KERN_WARNING "%s: FIXME: find end of " - "interval\n", __FUNCTION__); + + next = (struct dccp_li_hist_entry *) + hcrx->ccid3hcrx_li_hist.next; + next->dccplih_interval = ccid3_hc_rx_calc_first_li(sk); + } else { + struct dccp_li_hist_entry *entry; + struct list_head *tail; + + head = (struct dccp_li_hist_entry *) + hcrx->ccid3hcrx_li_hist.next; + /* FIXME win count check removed as was wrong */ + /* should make this check with receive history */ + /* and compare there as per section 10.2 of RFC4342 */ + + /* new loss event detected */ + /* calculate last interval length */ + seq_temp = dccp_delta_seqno(head->dccplih_seqno, seq_loss); + entry = dccp_li_hist_entry_new(ccid3_li_hist, SLAB_ATOMIC); + + if (entry == NULL) { + printk(KERN_CRIT "%s: out of memory\n",__FUNCTION__); + dump_stack(); + return; + } + + list_add(&entry->dccplih_node, &hcrx->ccid3hcrx_li_hist); + + tail = hcrx->ccid3hcrx_li_hist.prev; + list_del(tail); + kmem_cache_free(ccid3_li_hist->dccplih_slab, tail); + + /* Create the newest interval */ + entry->dccplih_seqno = seq_loss; + entry->dccplih_interval = seq_temp; + entry->dccplih_win_count = win_loss; + } } -static void ccid3_hc_rx_detect_loss(struct sock *sk) +static int ccid3_hc_rx_detect_loss(struct sock *sk, + struct dccp_rx_hist_entry *packet) { struct ccid3_hc_rx_sock *hcrx = ccid3_hc_rx_sk(sk); - u8 win_loss; - const u64 seq_loss = dccp_rx_hist_detect_loss(&hcrx->ccid3hcrx_hist, - &hcrx->ccid3hcrx_li_hist, - &win_loss); + struct dccp_rx_hist_entry *rx_hist = dccp_rx_hist_head(&hcrx->ccid3hcrx_hist); + u64 seqno = packet->dccphrx_seqno; + u64 tmp_seqno; + int loss = 0; + u8 ccval; - ccid3_hc_rx_update_li(sk, seq_loss, win_loss); + + tmp_seqno = hcrx->ccid3hcrx_seqno_nonloss; + + if (!rx_hist || + follows48(packet->dccphrx_seqno, hcrx->ccid3hcrx_seqno_nonloss)) { + hcrx->ccid3hcrx_seqno_nonloss = seqno; + hcrx->ccid3hcrx_ccval_nonloss = packet->dccphrx_ccval; + goto detect_out; + } + + + while (dccp_delta_seqno(hcrx->ccid3hcrx_seqno_nonloss, seqno) + > TFRC_RECV_NUM_LATE_LOSS) { + loss = 1; + ccid3_hc_rx_update_li(sk, hcrx->ccid3hcrx_seqno_nonloss, + hcrx->ccid3hcrx_ccval_nonloss); + tmp_seqno = hcrx->ccid3hcrx_seqno_nonloss; + dccp_inc_seqno(&tmp_seqno); + hcrx->ccid3hcrx_seqno_nonloss = tmp_seqno; + dccp_inc_seqno(&tmp_seqno); + while (dccp_rx_hist_find_entry(&hcrx->ccid3hcrx_hist, + tmp_seqno, &ccval)) { + hcrx->ccid3hcrx_seqno_nonloss = tmp_seqno; + hcrx->ccid3hcrx_ccval_nonloss = ccval; + dccp_inc_seqno(&tmp_seqno); + } + } + + /* FIXME - this code could be simplified with above while */ + /* but works at moment */ + if (follows48(packet->dccphrx_seqno, hcrx->ccid3hcrx_seqno_nonloss)) { + hcrx->ccid3hcrx_seqno_nonloss = seqno; + hcrx->ccid3hcrx_ccval_nonloss = packet->dccphrx_ccval; + } + +detect_out: + dccp_rx_hist_add_packet(ccid3_rx_hist, &hcrx->ccid3hcrx_hist, + &hcrx->ccid3hcrx_li_hist, packet, + hcrx->ccid3hcrx_seqno_nonloss); + return loss; } static void ccid3_hc_rx_packet_recv(struct sock *sk, struct sk_buff *skb) @@ -916,8 +1004,8 @@ static void ccid3_hc_rx_packet_recv(struct sock *sk, struct sk_buff *skb) struct dccp_rx_hist_entry *packet; struct timeval now; u8 win_count; - u32 p_prev, r_sample, t_elapsed; - int ins; + u32 p_prev, rtt_prev, r_sample, t_elapsed; + int loss; BUG_ON(hcrx == NULL || !(hcrx->ccid3hcrx_state == TFRC_RSTATE_NO_DATA || @@ -932,7 +1020,7 @@ static void ccid3_hc_rx_packet_recv(struct sock *sk, struct sk_buff *skb) case DCCP_PKT_DATAACK: if (opt_recv->dccpor_timestamp_echo == 0) break; - p_prev = hcrx->ccid3hcrx_rtt; + rtt_prev = hcrx->ccid3hcrx_rtt; dccp_timestamp(sk, &now); timeval_sub_usecs(&now, opt_recv->dccpor_timestamp_echo * 10); r_sample = timeval_usecs(&now); @@ -951,8 +1039,8 @@ static void ccid3_hc_rx_packet_recv(struct sock *sk, struct sk_buff *skb) hcrx->ccid3hcrx_rtt = (hcrx->ccid3hcrx_rtt * 9) / 10 + r_sample / 10; - if (p_prev != hcrx->ccid3hcrx_rtt) - ccid3_pr_debug("%s, New RTT=%luus, elapsed time=%u\n", + if (rtt_prev != hcrx->ccid3hcrx_rtt) + ccid3_pr_debug("%s, New RTT=%uus, elapsed time=%u\n", dccp_role(sk), hcrx->ccid3hcrx_rtt, opt_recv->dccpor_elapsed_time); break; @@ -973,8 +1061,7 @@ static void ccid3_hc_rx_packet_recv(struct sock *sk, struct sk_buff *skb) win_count = packet->dccphrx_ccval; - ins = dccp_rx_hist_add_packet(ccid3_rx_hist, &hcrx->ccid3hcrx_hist, - &hcrx->ccid3hcrx_li_hist, packet); + loss = ccid3_hc_rx_detect_loss(sk, packet); if (DCCP_SKB_CB(skb)->dccpd_type == DCCP_PKT_ACK) return; @@ -991,7 +1078,7 @@ static void ccid3_hc_rx_packet_recv(struct sock *sk, struct sk_buff *skb) case TFRC_RSTATE_DATA: hcrx->ccid3hcrx_bytes_recv += skb->len - dccp_hdr(skb)->dccph_doff * 4; - if (ins != 0) + if (loss) break; dccp_timestamp(sk, &now); @@ -1012,7 +1099,6 @@ static void ccid3_hc_rx_packet_recv(struct sock *sk, struct sk_buff *skb) ccid3_pr_debug("%s, sk=%p(%s), data loss! Reacting...\n", dccp_role(sk), sk, dccp_state_name(sk->sk_state)); - ccid3_hc_rx_detect_loss(sk); p_prev = hcrx->ccid3hcrx_p; /* Calculate loss event rate */ @@ -1022,6 +1108,9 @@ static void ccid3_hc_rx_packet_recv(struct sock *sk, struct sk_buff *skb) /* Scaling up by 1000000 as fixed decimal */ if (i_mean != 0) hcrx->ccid3hcrx_p = 1000000 / i_mean; + } else { + printk(KERN_CRIT "%s: empty loss hist\n",__FUNCTION__); + dump_stack(); } if (hcrx->ccid3hcrx_p > p_prev) { diff --git a/net/dccp/ccids/ccid3.h b/net/dccp/ccids/ccid3.h index 22cb9f80a09d..0a2cb7536d26 100644 --- a/net/dccp/ccids/ccid3.h +++ b/net/dccp/ccids/ccid3.h @@ -120,9 +120,10 @@ struct ccid3_hc_rx_sock { #define ccid3hcrx_x_recv ccid3hcrx_tfrc.tfrcrx_x_recv #define ccid3hcrx_rtt ccid3hcrx_tfrc.tfrcrx_rtt #define ccid3hcrx_p ccid3hcrx_tfrc.tfrcrx_p - u64 ccid3hcrx_seqno_last_counter:48, + u64 ccid3hcrx_seqno_nonloss:48, + ccid3hcrx_ccval_nonloss:4, ccid3hcrx_state:8, - ccid3hcrx_last_counter:4; + ccid3hcrx_ccval_last_counter:4; u32 ccid3hcrx_bytes_recv; struct timeval ccid3hcrx_tstamp_last_feedback; struct timeval ccid3hcrx_tstamp_last_ack; diff --git a/net/dccp/ccids/lib/loss_interval.c b/net/dccp/ccids/lib/loss_interval.c index b93d9fc98cb8..906c81ab9d4f 100644 --- a/net/dccp/ccids/lib/loss_interval.c +++ b/net/dccp/ccids/lib/loss_interval.c @@ -12,6 +12,7 @@ */ #include +#include #include "loss_interval.h" @@ -90,13 +91,13 @@ u32 dccp_li_hist_calc_i_mean(struct list_head *list) u32 w_tot = 0; list_for_each_entry_safe(li_entry, li_next, list, dccplih_node) { - if (i < DCCP_LI_HIST_IVAL_F_LENGTH) { + if (li_entry->dccplih_interval != ~0) { i_tot0 += li_entry->dccplih_interval * dccp_li_hist_w[i]; w_tot += dccp_li_hist_w[i]; + if (i != 0) + i_tot1 += li_entry->dccplih_interval * dccp_li_hist_w[i - 1]; } - if (i != 0) - i_tot1 += li_entry->dccplih_interval * dccp_li_hist_w[i - 1]; if (++i > DCCP_LI_HIST_IVAL_F_LENGTH) break; @@ -107,37 +108,36 @@ u32 dccp_li_hist_calc_i_mean(struct list_head *list) i_tot = max(i_tot0, i_tot1); - /* FIXME: Why do we do this? -Ian McDonald */ - if (i_tot * 4 < w_tot) - i_tot = w_tot * 4; + if (!w_tot) { + LIMIT_NETDEBUG(KERN_WARNING "%s: w_tot = 0\n", __FUNCTION__); + return 1; + } - return i_tot * 4 / w_tot; + return i_tot / w_tot; } EXPORT_SYMBOL_GPL(dccp_li_hist_calc_i_mean); -struct dccp_li_hist_entry *dccp_li_hist_interval_new(struct dccp_li_hist *hist, - struct list_head *list, - const u64 seq_loss, - const u8 win_loss) +int dccp_li_hist_interval_new(struct dccp_li_hist *hist, + struct list_head *list, const u64 seq_loss, const u8 win_loss) { - struct dccp_li_hist_entry *tail = NULL, *entry; + struct dccp_li_hist_entry *entry; int i; - for (i = 0; i <= DCCP_LI_HIST_IVAL_F_LENGTH; ++i) { + for (i = 0; i < DCCP_LI_HIST_IVAL_F_LENGTH; i++) { entry = dccp_li_hist_entry_new(hist, SLAB_ATOMIC); if (entry == NULL) { dccp_li_hist_purge(hist, list); - return NULL; + dump_stack(); + return 0; } - if (tail == NULL) - tail = entry; + entry->dccplih_interval = ~0; list_add(&entry->dccplih_node, list); } entry->dccplih_seqno = seq_loss; entry->dccplih_win_count = win_loss; - return tail; + return 1; } EXPORT_SYMBOL_GPL(dccp_li_hist_interval_new); diff --git a/net/dccp/ccids/lib/loss_interval.h b/net/dccp/ccids/lib/loss_interval.h index dcb370a53f57..0ae85f0340b2 100644 --- a/net/dccp/ccids/lib/loss_interval.h +++ b/net/dccp/ccids/lib/loss_interval.h @@ -52,9 +52,6 @@ extern void dccp_li_hist_purge(struct dccp_li_hist *hist, extern u32 dccp_li_hist_calc_i_mean(struct list_head *list); -extern struct dccp_li_hist_entry * - dccp_li_hist_interval_new(struct dccp_li_hist *hist, - struct list_head *list, - const u64 seq_loss, - const u8 win_loss); +extern int dccp_li_hist_interval_new(struct dccp_li_hist *hist, + struct list_head *list, const u64 seq_loss, const u8 win_loss); #endif /* _DCCP_LI_HIST_ */ diff --git a/net/dccp/ccids/lib/packet_history.c b/net/dccp/ccids/lib/packet_history.c index 420c60f8604d..b876c9c81c65 100644 --- a/net/dccp/ccids/lib/packet_history.c +++ b/net/dccp/ccids/lib/packet_history.c @@ -112,64 +112,27 @@ struct dccp_rx_hist_entry * EXPORT_SYMBOL_GPL(dccp_rx_hist_find_data_packet); -int dccp_rx_hist_add_packet(struct dccp_rx_hist *hist, +void dccp_rx_hist_add_packet(struct dccp_rx_hist *hist, struct list_head *rx_list, struct list_head *li_list, - struct dccp_rx_hist_entry *packet) + struct dccp_rx_hist_entry *packet, + u64 nonloss_seqno) { - struct dccp_rx_hist_entry *entry, *next, *iter; + struct dccp_rx_hist_entry *entry, *next; u8 num_later = 0; - iter = dccp_rx_hist_head(rx_list); - if (iter == NULL) - dccp_rx_hist_add_entry(rx_list, packet); - else { - const u64 seqno = packet->dccphrx_seqno; + list_add(&packet->dccphrx_node, rx_list); - if (after48(seqno, iter->dccphrx_seqno)) - dccp_rx_hist_add_entry(rx_list, packet); - else { - if (dccp_rx_hist_entry_data_packet(iter)) - num_later = 1; - - list_for_each_entry_continue(iter, rx_list, - dccphrx_node) { - if (after48(seqno, iter->dccphrx_seqno)) { - dccp_rx_hist_add_entry(&iter->dccphrx_node, - packet); - goto trim_history; - } - - if (dccp_rx_hist_entry_data_packet(iter)) - num_later++; - - if (num_later == TFRC_RECV_NUM_LATE_LOSS) { - dccp_rx_hist_entry_delete(hist, packet); - return 1; - } - } - - if (num_later < TFRC_RECV_NUM_LATE_LOSS) - dccp_rx_hist_add_entry(rx_list, packet); - /* - * FIXME: else what? should we destroy the packet - * like above? - */ - } - } - -trim_history: - /* - * Trim history (remove all packets after the NUM_LATE_LOSS + 1 - * data packets) - */ num_later = TFRC_RECV_NUM_LATE_LOSS + 1; if (!list_empty(li_list)) { list_for_each_entry_safe(entry, next, rx_list, dccphrx_node) { if (num_later == 0) { - list_del_init(&entry->dccphrx_node); - dccp_rx_hist_entry_delete(hist, entry); + if (after48(nonloss_seqno, + entry->dccphrx_seqno)) { + list_del_init(&entry->dccphrx_node); + dccp_rx_hist_entry_delete(hist, entry); + } } else if (dccp_rx_hist_entry_data_packet(entry)) --num_later; } @@ -217,94 +180,10 @@ trim_history: --num_later; } } - - return 0; } EXPORT_SYMBOL_GPL(dccp_rx_hist_add_packet); -u64 dccp_rx_hist_detect_loss(struct list_head *rx_list, - struct list_head *li_list, u8 *win_loss) -{ - struct dccp_rx_hist_entry *entry, *next, *packet; - struct dccp_rx_hist_entry *a_loss = NULL; - struct dccp_rx_hist_entry *b_loss = NULL; - u64 seq_loss = DCCP_MAX_SEQNO + 1; - u8 num_later = TFRC_RECV_NUM_LATE_LOSS; - - list_for_each_entry_safe(entry, next, rx_list, dccphrx_node) { - if (num_later == 0) { - b_loss = entry; - break; - } else if (dccp_rx_hist_entry_data_packet(entry)) - --num_later; - } - - if (b_loss == NULL) - goto out; - - num_later = 1; - list_for_each_entry_safe_continue(entry, next, rx_list, dccphrx_node) { - if (num_later == 0) { - a_loss = entry; - break; - } else if (dccp_rx_hist_entry_data_packet(entry)) - --num_later; - } - - if (a_loss == NULL) { - if (list_empty(li_list)) { - /* no loss event have occured yet */ - LIMIT_NETDEBUG("%s: TODO: find a lost data packet by " - "comparing to initial seqno\n", - __FUNCTION__); - goto out; - } else { - LIMIT_NETDEBUG("%s: Less than 4 data pkts in history!", - __FUNCTION__); - goto out; - } - } - - /* Locate a lost data packet */ - entry = packet = b_loss; - list_for_each_entry_safe_continue(entry, next, rx_list, dccphrx_node) { - u64 delta = dccp_delta_seqno(entry->dccphrx_seqno, - packet->dccphrx_seqno); - - if (delta != 0) { - if (dccp_rx_hist_entry_data_packet(packet)) - --delta; - /* - * FIXME: check this, probably this % usage is because - * in earlier drafts the ndp count was just 8 bits - * long, but now it cam be up to 24 bits long. - */ -#if 0 - if (delta % DCCP_NDP_LIMIT != - (packet->dccphrx_ndp - - entry->dccphrx_ndp) % DCCP_NDP_LIMIT) -#endif - if (delta != packet->dccphrx_ndp - entry->dccphrx_ndp) { - seq_loss = entry->dccphrx_seqno; - dccp_inc_seqno(&seq_loss); - } - } - packet = entry; - if (packet == a_loss) - break; - } -out: - if (seq_loss != DCCP_MAX_SEQNO + 1) - *win_loss = a_loss->dccphrx_ccval; - else - *win_loss = 0; /* Paranoia */ - - return seq_loss; -} - -EXPORT_SYMBOL_GPL(dccp_rx_hist_detect_loss); - struct dccp_tx_hist *dccp_tx_hist_new(const char *name) { struct dccp_tx_hist *hist = kmalloc(sizeof(*hist), GFP_ATOMIC); diff --git a/net/dccp/ccids/lib/packet_history.h b/net/dccp/ccids/lib/packet_history.h index aea9c5d70910..067cf1c85a37 100644 --- a/net/dccp/ccids/lib/packet_history.h +++ b/net/dccp/ccids/lib/packet_history.h @@ -166,12 +166,6 @@ static inline void dccp_rx_hist_entry_delete(struct dccp_rx_hist *hist, extern void dccp_rx_hist_purge(struct dccp_rx_hist *hist, struct list_head *list); -static inline void dccp_rx_hist_add_entry(struct list_head *list, - struct dccp_rx_hist_entry *entry) -{ - list_add(&entry->dccphrx_node, list); -} - static inline struct dccp_rx_hist_entry * dccp_rx_hist_head(struct list_head *list) { @@ -190,10 +184,11 @@ static inline int entry->dccphrx_type == DCCP_PKT_DATAACK; } -extern int dccp_rx_hist_add_packet(struct dccp_rx_hist *hist, +extern void dccp_rx_hist_add_packet(struct dccp_rx_hist *hist, struct list_head *rx_list, struct list_head *li_list, - struct dccp_rx_hist_entry *packet); + struct dccp_rx_hist_entry *packet, + u64 nonloss_seqno); extern u64 dccp_rx_hist_detect_loss(struct list_head *rx_list, struct list_head *li_list, u8 *win_loss); From 737c17561fb2c6a72810cca7d7c0b8bdc29bb120 Mon Sep 17 00:00:00 2001 From: Peter Horton Date: Sat, 26 Aug 2006 09:07:36 +0100 Subject: [PATCH 338/488] [SERIAL] Support for Intashield 2 port PCI serial card Here is a patch that adds support for the Instashield IS-200 2 port PCI serial card. Signed-off-by: Peter Horton Signed-off-by: Russell King --- drivers/serial/8250_pci.c | 14 ++++++++++++++ include/linux/pci_ids.h | 3 +++ 2 files changed, 17 insertions(+) diff --git a/drivers/serial/8250_pci.c b/drivers/serial/8250_pci.c index a1d322f8a16c..cd1979daf2b8 100644 --- a/drivers/serial/8250_pci.c +++ b/drivers/serial/8250_pci.c @@ -936,6 +936,7 @@ enum pci_board_num_t { pbn_b1_8_1382400, pbn_b2_1_115200, + pbn_b2_2_115200, pbn_b2_8_115200, pbn_b2_1_460800, @@ -1243,6 +1244,12 @@ static struct pciserial_board pci_boards[] __devinitdata = { .base_baud = 115200, .uart_offset = 8, }, + [pbn_b2_2_115200] = { + .flags = FL_BASE2, + .num_ports = 2, + .base_baud = 115200, + .uart_offset = 8, + }, [pbn_b2_8_115200] = { .flags = FL_BASE2, .num_ports = 8, @@ -2339,6 +2346,13 @@ static struct pci_device_id serial_pci_tbl[] = { PCI_ANY_ID, PCI_ANY_ID, 0, 0, pbn_b0_1_115200 }, + /* + * IntaShield IS-200 + */ + { PCI_VENDOR_ID_INTASHIELD, PCI_DEVICE_ID_INTASHIELD_IS200, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, /* 135a.0811 */ + pbn_b2_2_115200 }, + /* * These entries match devices with class COMMUNICATION_SERIAL, * COMMUNICATION_MODEM or COMMUNICATION_MULTISERIAL diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index 4eae06b08cf2..4c2839eab7f4 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -1726,6 +1726,9 @@ #define PCI_VENDOR_ID_DOMEX 0x134a #define PCI_DEVICE_ID_DOMEX_DMX3191D 0x0001 +#define PCI_VENDOR_ID_INTASHIELD 0x135a +#define PCI_DEVICE_ID_INTASHIELD_IS200 0x0d80 + #define PCI_VENDOR_ID_QUATECH 0x135C #define PCI_DEVICE_ID_QUATECH_QSC100 0x0010 #define PCI_DEVICE_ID_QUATECH_DSC100 0x0020 From 7c6f25141b88b5e926f9d43932ce668602d611ae Mon Sep 17 00:00:00 2001 From: Daniel Jacobowitz Date: Sun, 27 Aug 2006 12:42:08 +0100 Subject: [PATCH 339/488] [ARM] 3748/3: Correct error check in vfp_raise_exceptions Patch from Daniel Jacobowitz The recent fix to hide VFP_NAN_FLAG broke the check in vfp_raise_exceptions; it would attempt to deliver an exception mask of 0xfffffeff instead of reporting a serious error condition using printk. Define a safe constant to use for an invalid exception maskm, and use it at both ends. Signed-off-by: Daniel Jacobowitz Signed-off-by: Russell King --- arch/arm/vfp/vfp.h | 8 ++++++++ arch/arm/vfp/vfpmodule.c | 4 ++-- 2 files changed, 10 insertions(+), 2 deletions(-) diff --git a/arch/arm/vfp/vfp.h b/arch/arm/vfp/vfp.h index 4b97950984e9..5fbdf81a8aaf 100644 --- a/arch/arm/vfp/vfp.h +++ b/arch/arm/vfp/vfp.h @@ -353,3 +353,11 @@ u32 vfp_estimate_sqrt_significand(u32 exponent, u32 significand); * A special flag to tell the normalisation code not to normalise. */ #define VFP_NAN_FLAG 0x100 + +/* + * A bit pattern used to indicate the initial (unset) value of the + * exception mask, in case nothing handles an instruction. This + * doesn't include the NAN flag, which get masked out before + * we check for an error. + */ +#define VFP_EXCEPTION_ERROR ((u32)-1 & ~VFP_NAN_FLAG) diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c index 9d265d5e748c..4178f6cc3d37 100644 --- a/arch/arm/vfp/vfpmodule.c +++ b/arch/arm/vfp/vfpmodule.c @@ -131,7 +131,7 @@ static void vfp_raise_exceptions(u32 exceptions, u32 inst, u32 fpscr, struct pt_ pr_debug("VFP: raising exceptions %08x\n", exceptions); - if (exceptions == (u32)-1) { + if (exceptions == VFP_EXCEPTION_ERROR) { vfp_panic("unhandled bounce"); vfp_raise_sigfpe(0, regs); return; @@ -170,7 +170,7 @@ static void vfp_raise_exceptions(u32 exceptions, u32 inst, u32 fpscr, struct pt_ */ static u32 vfp_emulate_instruction(u32 inst, u32 fpscr, struct pt_regs *regs) { - u32 exceptions = (u32)-1; + u32 exceptions = VFP_EXCEPTION_ERROR; pr_debug("VFP: emulate: INST=0x%08x SCR=0x%08x\n", inst, fpscr); From c29ecac18cb740ae845db14963ac586c53962453 Mon Sep 17 00:00:00 2001 From: Daniel Jacobowitz Date: Sun, 27 Aug 2006 12:42:10 +0100 Subject: [PATCH 340/488] [ARM] 3749/3: Correct VFP single/double conversion emulation Patch from Daniel Jacobowitz The fcvtsd/fcvtds emulation was left behind when the numbering of double precision registers was changed from 0-30 to 0-15. Both conversion instructions were writing their results to the wrong register. Also, the conversion instructions should stop after the first element even if a vector length is specified. Signed-off-by: Daniel Jacobowitz Signed-off-by: Russell King --- arch/arm/vfp/vfpdouble.c | 28 +++++++++++++++++++++------- arch/arm/vfp/vfpsingle.c | 33 ++++++++++++++++++++++----------- 2 files changed, 43 insertions(+), 18 deletions(-) diff --git a/arch/arm/vfp/vfpdouble.c b/arch/arm/vfp/vfpdouble.c index 009038c8113e..021581680e94 100644 --- a/arch/arm/vfp/vfpdouble.c +++ b/arch/arm/vfp/vfpdouble.c @@ -1127,7 +1127,7 @@ u32 vfp_double_cpdo(u32 inst, u32 fpscr) { u32 op = inst & FOP_MASK; u32 exceptions = 0; - unsigned int dd = vfp_get_dd(inst); + unsigned int dest; unsigned int dn = vfp_get_dn(inst); unsigned int dm = vfp_get_dm(inst); unsigned int vecitr, veclen, vecstride; @@ -1136,11 +1136,21 @@ u32 vfp_double_cpdo(u32 inst, u32 fpscr) veclen = fpscr & FPSCR_LENGTH_MASK; vecstride = (1 + ((fpscr & FPSCR_STRIDE_MASK) == FPSCR_STRIDE_MASK)) * 2; + /* + * fcvtds takes an sN register number as destination, not dN. + * It also always operates on scalars. + */ + if ((inst & FEXT_MASK) == FEXT_FCVT) { + veclen = 0; + dest = vfp_get_sd(inst); + } else + dest = vfp_get_dd(inst); + /* * If destination bank is zero, vector length is always '1'. * ARM DDI0100F C5.1.3, C5.3.2. */ - if (FREG_BANK(dd) == 0) + if (FREG_BANK(dest) == 0) veclen = 0; pr_debug("VFP: vecstride=%u veclen=%u\n", vecstride, @@ -1153,16 +1163,20 @@ u32 vfp_double_cpdo(u32 inst, u32 fpscr) for (vecitr = 0; vecitr <= veclen; vecitr += 1 << FPSCR_LENGTH_BIT) { u32 except; - if (op == FOP_EXT) + if (op == FOP_EXT && (inst & FEXT_MASK) == FEXT_FCVT) + pr_debug("VFP: itr%d (s%u) = op[%u] (d%u)\n", + vecitr >> FPSCR_LENGTH_BIT, + dest, dn, dm); + else if (op == FOP_EXT) pr_debug("VFP: itr%d (d%u) = op[%u] (d%u)\n", vecitr >> FPSCR_LENGTH_BIT, - dd, dn, dm); + dest, dn, dm); else pr_debug("VFP: itr%d (d%u) = (d%u) op[%u] (d%u)\n", vecitr >> FPSCR_LENGTH_BIT, - dd, dn, FOP_TO_IDX(op), dm); + dest, dn, FOP_TO_IDX(op), dm); - except = fop(dd, dn, dm, fpscr); + except = fop(dest, dn, dm, fpscr); pr_debug("VFP: itr%d: exceptions=%08x\n", vecitr >> FPSCR_LENGTH_BIT, except); @@ -1180,7 +1194,7 @@ u32 vfp_double_cpdo(u32 inst, u32 fpscr) * we encounter an exception. We continue. */ - dd = FREG_BANK(dd) + ((FREG_IDX(dd) + vecstride) & 6); + dest = FREG_BANK(dest) + ((FREG_IDX(dest) + vecstride) & 6); dn = FREG_BANK(dn) + ((FREG_IDX(dn) + vecstride) & 6); if (FREG_BANK(dm) != 0) dm = FREG_BANK(dm) + ((FREG_IDX(dm) + vecstride) & 6); diff --git a/arch/arm/vfp/vfpsingle.c b/arch/arm/vfp/vfpsingle.c index dae2c2f46052..5bbd5d1c8a5f 100644 --- a/arch/arm/vfp/vfpsingle.c +++ b/arch/arm/vfp/vfpsingle.c @@ -514,10 +514,6 @@ static u32 vfp_single_fcvtd(int dd, int unused, s32 m, u32 fpscr) else vdd.exponent = vsm.exponent + (1023 - 127); - /* - * Technically, if bit 0 of dd is set, this is an invalid - * instruction. However, we ignore this for efficiency. - */ return vfp_double_normaliseround(dd, &vdd, fpscr, exceptions, "fcvtd"); pack_nan: @@ -1174,7 +1170,7 @@ u32 vfp_single_cpdo(u32 inst, u32 fpscr) { u32 op = inst & FOP_MASK; u32 exceptions = 0; - unsigned int sd = vfp_get_sd(inst); + unsigned int dest; unsigned int sn = vfp_get_sn(inst); unsigned int sm = vfp_get_sm(inst); unsigned int vecitr, veclen, vecstride; @@ -1183,11 +1179,23 @@ u32 vfp_single_cpdo(u32 inst, u32 fpscr) veclen = fpscr & FPSCR_LENGTH_MASK; vecstride = 1 + ((fpscr & FPSCR_STRIDE_MASK) == FPSCR_STRIDE_MASK); + /* + * fcvtsd takes a dN register number as destination, not sN. + * Technically, if bit 0 of dd is set, this is an invalid + * instruction. However, we ignore this for efficiency. + * It also only operates on scalars. + */ + if ((inst & FEXT_MASK) == FEXT_FCVT) { + veclen = 0; + dest = vfp_get_dd(inst); + } else + dest = vfp_get_sd(inst); + /* * If destination bank is zero, vector length is always '1'. * ARM DDI0100F C5.1.3, C5.3.2. */ - if (FREG_BANK(sd) == 0) + if (FREG_BANK(dest) == 0) veclen = 0; pr_debug("VFP: vecstride=%u veclen=%u\n", vecstride, @@ -1201,15 +1209,18 @@ u32 vfp_single_cpdo(u32 inst, u32 fpscr) s32 m = vfp_get_float(sm); u32 except; - if (op == FOP_EXT) + if (op == FOP_EXT && (inst & FEXT_MASK) == FEXT_FCVT) + pr_debug("VFP: itr%d (d%u) = op[%u] (s%u=%08x)\n", + vecitr >> FPSCR_LENGTH_BIT, dest, sn, sm, m); + else if (op == FOP_EXT) pr_debug("VFP: itr%d (s%u) = op[%u] (s%u=%08x)\n", - vecitr >> FPSCR_LENGTH_BIT, sd, sn, sm, m); + vecitr >> FPSCR_LENGTH_BIT, dest, sn, sm, m); else pr_debug("VFP: itr%d (s%u) = (s%u) op[%u] (s%u=%08x)\n", - vecitr >> FPSCR_LENGTH_BIT, sd, sn, + vecitr >> FPSCR_LENGTH_BIT, dest, sn, FOP_TO_IDX(op), sm, m); - except = fop(sd, sn, m, fpscr); + except = fop(dest, sn, m, fpscr); pr_debug("VFP: itr%d: exceptions=%08x\n", vecitr >> FPSCR_LENGTH_BIT, except); @@ -1227,7 +1238,7 @@ u32 vfp_single_cpdo(u32 inst, u32 fpscr) * we encounter an exception. We continue. */ - sd = FREG_BANK(sd) + ((FREG_IDX(sd) + vecstride) & 7); + dest = FREG_BANK(dest) + ((FREG_IDX(dest) + vecstride) & 7); sn = FREG_BANK(sn) + ((FREG_IDX(sn) + vecstride) & 7); if (FREG_BANK(sm) != 0) sm = FREG_BANK(sm) + ((FREG_IDX(sm) + vecstride) & 7); From b53a2b41f156a9c9b62c14502037cbc15bc08b54 Mon Sep 17 00:00:00 2001 From: Daniel Jacobowitz Date: Sun, 27 Aug 2006 12:42:14 +0100 Subject: [PATCH 341/488] [ARM] 3758/1: Preserve signalling NaNs in conversion Patch from Daniel Jacobowitz The fcvtds and fcvtsd instructions were generating a qnan bit pattern for both quiet and signalling NaNs. Signed-off-by: Daniel Jacobowitz Signed-off-by: Russell King --- arch/arm/vfp/vfpdouble.c | 2 +- arch/arm/vfp/vfpsingle.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/vfp/vfpdouble.c b/arch/arm/vfp/vfpdouble.c index 021581680e94..04bd3425b29b 100644 --- a/arch/arm/vfp/vfpdouble.c +++ b/arch/arm/vfp/vfpdouble.c @@ -465,7 +465,7 @@ static u32 vfp_double_fcvts(int sd, int unused, int dm, u32 fpscr) */ if (tm & (VFP_INFINITY|VFP_NAN)) { vsd.exponent = 255; - if (tm & VFP_NAN) + if (tm == VFP_QNAN) vsd.significand |= VFP_SINGLE_SIGNIFICAND_QNAN; goto pack_nan; } else if (tm & VFP_ZERO) diff --git a/arch/arm/vfp/vfpsingle.c b/arch/arm/vfp/vfpsingle.c index 5bbd5d1c8a5f..78d7cac5f36b 100644 --- a/arch/arm/vfp/vfpsingle.c +++ b/arch/arm/vfp/vfpsingle.c @@ -506,7 +506,7 @@ static u32 vfp_single_fcvtd(int dd, int unused, s32 m, u32 fpscr) */ if (tm & (VFP_INFINITY|VFP_NAN)) { vdd.exponent = 2047; - if (tm & VFP_NAN) + if (tm == VFP_QNAN) vdd.significand |= VFP_DOUBLE_SIGNIFICAND_QNAN; goto pack_nan; } else if (tm & VFP_ZERO) From 8f1bf8743c459399685f5df43021acd156548c22 Mon Sep 17 00:00:00 2001 From: Paul Sokolovsky Date: Sun, 27 Aug 2006 12:54:56 +0100 Subject: [PATCH 342/488] [ARM] 3760/1: This patch adds timeouts while working with SSP registers. Such timeouts were en Patch from Paul Sokolovsky This patch adds timeouts while working with SSP registers. Such timeouts were envisioned by docstrings in ssp.c, but were not implemented. There were actual lockups while accessing touchscreen for iPaqs h1910, h4000 due to lack of the timeouts. This is updated version of previously submitted patch: 3738/1. Signed-off-by: Paul Sokolovsky Signed-off-by: Russell King --- arch/arm/mach-pxa/corgi_ssp.c | 20 ++++++++------ arch/arm/mach-pxa/ssp.c | 37 ++++++++++++++++++++------ arch/arm/mach-sa1100/ssp.c | 48 +++++++++++++++++++++++++++------- include/asm-arm/arch-pxa/ssp.h | 4 +-- include/asm-arm/hardware/ssp.h | 4 +-- 5 files changed, 84 insertions(+), 29 deletions(-) diff --git a/arch/arm/mach-pxa/corgi_ssp.c b/arch/arm/mach-pxa/corgi_ssp.c index f9421318cb7a..ff6b4ee037f5 100644 --- a/arch/arm/mach-pxa/corgi_ssp.c +++ b/arch/arm/mach-pxa/corgi_ssp.c @@ -47,14 +47,15 @@ static struct corgissp_machinfo *ssp_machinfo; */ unsigned long corgi_ssp_ads7846_putget(ulong data) { - unsigned long ret,flag; + unsigned long flag; + u32 ret = 0; spin_lock_irqsave(&corgi_ssp_lock, flag); if (ssp_machinfo->cs_ads7846 >= 0) GPCR(ssp_machinfo->cs_ads7846) = GPIO_bit(ssp_machinfo->cs_ads7846); ssp_write_word(&corgi_ssp_dev,data); - ret = ssp_read_word(&corgi_ssp_dev); + ssp_read_word(&corgi_ssp_dev, &ret); if (ssp_machinfo->cs_ads7846 >= 0) GPSR(ssp_machinfo->cs_ads7846) = GPIO_bit(ssp_machinfo->cs_ads7846); @@ -88,7 +89,9 @@ void corgi_ssp_ads7846_put(ulong data) unsigned long corgi_ssp_ads7846_get(void) { - return ssp_read_word(&corgi_ssp_dev); + u32 ret = 0; + ssp_read_word(&corgi_ssp_dev, &ret); + return ret; } EXPORT_SYMBOL(corgi_ssp_ads7846_putget); @@ -104,6 +107,7 @@ EXPORT_SYMBOL(corgi_ssp_ads7846_get); unsigned long corgi_ssp_dac_put(ulong data) { unsigned long flag, sscr1 = SSCR1_SPH; + u32 tmp; spin_lock_irqsave(&corgi_ssp_lock, flag); @@ -118,7 +122,7 @@ unsigned long corgi_ssp_dac_put(ulong data) GPCR(ssp_machinfo->cs_lcdcon) = GPIO_bit(ssp_machinfo->cs_lcdcon); ssp_write_word(&corgi_ssp_dev,data); /* Read null data back from device to prevent SSP overflow */ - ssp_read_word(&corgi_ssp_dev); + ssp_read_word(&corgi_ssp_dev, &tmp); if (ssp_machinfo->cs_lcdcon >= 0) GPSR(ssp_machinfo->cs_lcdcon) = GPIO_bit(ssp_machinfo->cs_lcdcon); @@ -150,7 +154,7 @@ EXPORT_SYMBOL(corgi_ssp_blduty_set); int corgi_ssp_max1111_get(ulong data) { unsigned long flag; - int voltage,voltage1,voltage2; + long voltage = 0, voltage1 = 0, voltage2 = 0; spin_lock_irqsave(&corgi_ssp_lock, flag); if (ssp_machinfo->cs_max1111 >= 0) @@ -163,15 +167,15 @@ int corgi_ssp_max1111_get(ulong data) /* TB1/RB1 */ ssp_write_word(&corgi_ssp_dev,data); - ssp_read_word(&corgi_ssp_dev); /* null read */ + ssp_read_word(&corgi_ssp_dev, (u32*)&voltage1); /* null read */ /* TB12/RB2 */ ssp_write_word(&corgi_ssp_dev,0); - voltage1=ssp_read_word(&corgi_ssp_dev); + ssp_read_word(&corgi_ssp_dev, (u32*)&voltage1); /* TB13/RB3*/ ssp_write_word(&corgi_ssp_dev,0); - voltage2=ssp_read_word(&corgi_ssp_dev); + ssp_read_word(&corgi_ssp_dev, (u32*)&voltage2); ssp_disable(&corgi_ssp_dev); ssp_config(&corgi_ssp_dev, (SSCR0_National | (SSCR0_DSS & 0x0b )), 0, 0, SSCR0_SerClkDiv(ssp_machinfo->clk_ads7846)); diff --git a/arch/arm/mach-pxa/ssp.c b/arch/arm/mach-pxa/ssp.c index 93096befd017..1fddfeaa630d 100644 --- a/arch/arm/mach-pxa/ssp.c +++ b/arch/arm/mach-pxa/ssp.c @@ -40,6 +40,8 @@ #define PXA_SSP_PORTS 3 +#define TIMEOUT 100000 + struct ssp_info_ { int irq; u32 clock; @@ -92,13 +94,18 @@ static irqreturn_t ssp_interrupt(int irq, void *dev_id, struct pt_regs *regs) * The caller is expected to perform the necessary locking. * * Returns: - * %-ETIMEDOUT timeout occurred (for future) + * %-ETIMEDOUT timeout occurred * 0 success */ int ssp_write_word(struct ssp_dev *dev, u32 data) { - while (!(SSSR_P(dev->port) & SSSR_TNF)) + int timeout = TIMEOUT; + + while (!(SSSR_P(dev->port) & SSSR_TNF)) { + if (!--timeout) + return -ETIMEDOUT; cpu_relax(); + } SSDR_P(dev->port) = data; @@ -117,15 +124,21 @@ int ssp_write_word(struct ssp_dev *dev, u32 data) * The caller is expected to perform the necessary locking. * * Returns: - * %-ETIMEDOUT timeout occurred (for future) + * %-ETIMEDOUT timeout occurred * 32-bit data success */ -int ssp_read_word(struct ssp_dev *dev) +int ssp_read_word(struct ssp_dev *dev, u32 *data) { - while (!(SSSR_P(dev->port) & SSSR_RNE)) - cpu_relax(); + int timeout = TIMEOUT; - return SSDR_P(dev->port); + while (!(SSSR_P(dev->port) & SSSR_RNE)) { + if (!--timeout) + return -ETIMEDOUT; + cpu_relax(); + } + + *data = SSDR_P(dev->port); + return 0; } /** @@ -136,13 +149,21 @@ int ssp_read_word(struct ssp_dev *dev) * * The caller is expected to perform the necessary locking. */ -void ssp_flush(struct ssp_dev *dev) +int ssp_flush(struct ssp_dev *dev) { + int timeout = TIMEOUT * 2; + do { while (SSSR_P(dev->port) & SSSR_RNE) { + if (!--timeout) + return -ETIMEDOUT; (void) SSDR_P(dev->port); } + if (!--timeout) + return -ETIMEDOUT; } while (SSSR_P(dev->port) & SSSR_BSY); + + return 0; } /** diff --git a/arch/arm/mach-sa1100/ssp.c b/arch/arm/mach-sa1100/ssp.c index 1604dadf27fc..5eba5fbbb561 100644 --- a/arch/arm/mach-sa1100/ssp.c +++ b/arch/arm/mach-sa1100/ssp.c @@ -23,6 +23,8 @@ #include #include +#define TIMEOUT 100000 + static irqreturn_t ssp_interrupt(int irq, void *dev_id, struct pt_regs *regs) { unsigned int status = Ser4SSSR; @@ -47,18 +49,27 @@ static irqreturn_t ssp_interrupt(int irq, void *dev_id, struct pt_regs *regs) * The caller is expected to perform the necessary locking. * * Returns: - * %-ETIMEDOUT timeout occurred (for future) + * %-ETIMEDOUT timeout occurred * 0 success */ int ssp_write_word(u16 data) { - while (!(Ser4SSSR & SSSR_TNF)) + int timeout = TIMEOUT; + + while (!(Ser4SSSR & SSSR_TNF)) { + if (!--timeout) + return -ETIMEDOUT; cpu_relax(); + } Ser4SSDR = data; - while (!(Ser4SSSR & SSSR_BSY)) + timeout = TIMEOUT; + while (!(Ser4SSSR & SSSR_BSY)) { + if (!--timeout) + return -ETIMEDOUT; cpu_relax(); + } return 0; } @@ -75,15 +86,22 @@ int ssp_write_word(u16 data) * The caller is expected to perform the necessary locking. * * Returns: - * %-ETIMEDOUT timeout occurred (for future) + * %-ETIMEDOUT timeout occurred * 16-bit data success */ -int ssp_read_word(void) +int ssp_read_word(u16 *data) { - while (!(Ser4SSSR & SSSR_RNE)) - cpu_relax(); + int timeout = TIMEOUT; - return Ser4SSDR; + while (!(Ser4SSSR & SSSR_RNE)) { + if (!--timeout) + return -ETIMEDOUT; + cpu_relax(); + } + + *data = (u16)Ser4SSDR; + + return 0; } /** @@ -93,14 +111,26 @@ int ssp_read_word(void) * is empty. * * The caller is expected to perform the necessary locking. + * + * Returns: + * %-ETIMEDOUT timeout occurred + * 0 success */ -void ssp_flush(void) +int ssp_flush(void) { + int timeout = TIMEOUT * 2; + do { while (Ser4SSSR & SSSR_RNE) { + if (!--timeout) + return -ETIMEDOUT; (void) Ser4SSDR; } + if (!--timeout) + return -ETIMEDOUT; } while (Ser4SSSR & SSSR_BSY); + + return 0; } /** diff --git a/include/asm-arm/arch-pxa/ssp.h b/include/asm-arm/arch-pxa/ssp.h index 949878c0d908..ea200551a75f 100644 --- a/include/asm-arm/arch-pxa/ssp.h +++ b/include/asm-arm/arch-pxa/ssp.h @@ -40,8 +40,8 @@ struct ssp_dev { }; int ssp_write_word(struct ssp_dev *dev, u32 data); -int ssp_read_word(struct ssp_dev *dev); -void ssp_flush(struct ssp_dev *dev); +int ssp_read_word(struct ssp_dev *dev, u32 *data); +int ssp_flush(struct ssp_dev *dev); void ssp_enable(struct ssp_dev *dev); void ssp_disable(struct ssp_dev *dev); void ssp_save_state(struct ssp_dev *dev, struct ssp_state *ssp); diff --git a/include/asm-arm/hardware/ssp.h b/include/asm-arm/hardware/ssp.h index 28aa11b769cd..3b42e181997c 100644 --- a/include/asm-arm/hardware/ssp.h +++ b/include/asm-arm/hardware/ssp.h @@ -16,8 +16,8 @@ struct ssp_state { }; int ssp_write_word(u16 data); -int ssp_read_word(void); -void ssp_flush(void); +int ssp_read_word(u16 *data); +int ssp_flush(void); void ssp_enable(void); void ssp_disable(void); void ssp_save_state(struct ssp_state *ssp); From 416112f818afcc08aeaba79ebba899aee5ddf571 Mon Sep 17 00:00:00 2001 From: David Brownell Date: Sun, 27 Aug 2006 13:09:14 +0100 Subject: [PATCH 343/488] [ARM] 3741/1: remove sa1111.c build warning on non-sa1100 systems Patch from David Brownell Remove buld warning when building sa1111 on non-sa1100 platforms (e.g. PXA). Signed-off-by: David Brownell Signed-off-by: Russell King --- arch/arm/common/sa1111.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/arm/common/sa1111.c b/arch/arm/common/sa1111.c index a331c12cead9..29818bd3248f 100644 --- a/arch/arm/common/sa1111.c +++ b/arch/arm/common/sa1111.c @@ -618,7 +618,7 @@ __sa1111_probe(struct device *me, struct resource *mem, int irq) { struct sa1111 *sachip; unsigned long id; - unsigned int has_devs, val; + unsigned int has_devs; int i, ret = -ENODEV; sachip = kzalloc(sizeof(struct sa1111), GFP_KERNEL); @@ -669,6 +669,9 @@ __sa1111_probe(struct device *me, struct resource *mem, int irq) sa1111_wake(sachip); #ifdef CONFIG_ARCH_SA1100 + { + unsigned int val; + /* * The SDRAM configuration of the SA1110 and the SA1111 must * match. This is very important to ensure that SA1111 accesses @@ -692,6 +695,7 @@ __sa1111_probe(struct device *me, struct resource *mem, int irq) * Enable the SA1110 memory bus request and grant signals. */ sa1110_mb_enable(); + } #endif /* From 9a654518e1b774b8e8f74a819fd12a931e7672c9 Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Sun, 27 Aug 2006 01:23:22 -0700 Subject: [PATCH 344/488] [PATCH] drivers/rtc: fix rtc-s3c.c In the cleanups of drivers/rtc/s3c-rtc.c, the base address for the registers got broken. This patch fixes that by ensuring the readb/writeb are all prefixed with the base returned from ioremap()ing the registers. Also fix check for valid year range, which was the wrong way around. Signed-off-by: Ben Dooks Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/rtc/rtc-s3c.c | 121 +++++++++++++----------- include/asm-arm/arch-s3c2410/regs-rtc.h | 2 +- 2 files changed, 68 insertions(+), 55 deletions(-) diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c index d6d1bff52b8e..aacbfea98678 100644 --- a/drivers/rtc/rtc-s3c.c +++ b/drivers/rtc/rtc-s3c.c @@ -69,12 +69,12 @@ static void s3c_rtc_setaie(int to) pr_debug("%s: aie=%d\n", __FUNCTION__, to); - tmp = readb(S3C2410_RTCALM) & ~S3C2410_RTCALM_ALMEN; + tmp = readb(s3c_rtc_base + S3C2410_RTCALM) & ~S3C2410_RTCALM_ALMEN; if (to) tmp |= S3C2410_RTCALM_ALMEN; - writeb(tmp, S3C2410_RTCALM); + writeb(tmp, s3c_rtc_base + S3C2410_RTCALM); } static void s3c_rtc_setpie(int to) @@ -84,12 +84,12 @@ static void s3c_rtc_setpie(int to) pr_debug("%s: pie=%d\n", __FUNCTION__, to); spin_lock_irq(&s3c_rtc_pie_lock); - tmp = readb(S3C2410_TICNT) & ~S3C2410_TICNT_ENABLE; + tmp = readb(s3c_rtc_base + S3C2410_TICNT) & ~S3C2410_TICNT_ENABLE; if (to) tmp |= S3C2410_TICNT_ENABLE; - writeb(tmp, S3C2410_TICNT); + writeb(tmp, s3c_rtc_base + S3C2410_TICNT); spin_unlock_irq(&s3c_rtc_pie_lock); } @@ -98,13 +98,13 @@ static void s3c_rtc_setfreq(int freq) unsigned int tmp; spin_lock_irq(&s3c_rtc_pie_lock); - tmp = readb(S3C2410_TICNT) & S3C2410_TICNT_ENABLE; + tmp = readb(s3c_rtc_base + S3C2410_TICNT) & S3C2410_TICNT_ENABLE; s3c_rtc_freq = freq; tmp |= (128 / freq)-1; - writeb(tmp, S3C2410_TICNT); + writeb(tmp, s3c_rtc_base + S3C2410_TICNT); spin_unlock_irq(&s3c_rtc_pie_lock); } @@ -113,14 +113,15 @@ static void s3c_rtc_setfreq(int freq) static int s3c_rtc_gettime(struct device *dev, struct rtc_time *rtc_tm) { unsigned int have_retried = 0; + void __iomem *base = s3c_rtc_base; retry_get_time: - rtc_tm->tm_min = readb(S3C2410_RTCMIN); - rtc_tm->tm_hour = readb(S3C2410_RTCHOUR); - rtc_tm->tm_mday = readb(S3C2410_RTCDATE); - rtc_tm->tm_mon = readb(S3C2410_RTCMON); - rtc_tm->tm_year = readb(S3C2410_RTCYEAR); - rtc_tm->tm_sec = readb(S3C2410_RTCSEC); + rtc_tm->tm_min = readb(base + S3C2410_RTCMIN); + rtc_tm->tm_hour = readb(base + S3C2410_RTCHOUR); + rtc_tm->tm_mday = readb(base + S3C2410_RTCDATE); + rtc_tm->tm_mon = readb(base + S3C2410_RTCMON); + rtc_tm->tm_year = readb(base + S3C2410_RTCYEAR); + rtc_tm->tm_sec = readb(base + S3C2410_RTCSEC); /* the only way to work out wether the system was mid-update * when we read it is to check the second counter, and if it @@ -151,17 +152,25 @@ static int s3c_rtc_gettime(struct device *dev, struct rtc_time *rtc_tm) static int s3c_rtc_settime(struct device *dev, struct rtc_time *tm) { + void __iomem *base = s3c_rtc_base; + /* the rtc gets round the y2k problem by just not supporting it */ - if (tm->tm_year < 100) + if (tm->tm_year > 100) { + dev_err(dev, "rtc only supports 100 years\n"); return -EINVAL; + } - writeb(BIN2BCD(tm->tm_sec), S3C2410_RTCSEC); - writeb(BIN2BCD(tm->tm_min), S3C2410_RTCMIN); - writeb(BIN2BCD(tm->tm_hour), S3C2410_RTCHOUR); - writeb(BIN2BCD(tm->tm_mday), S3C2410_RTCDATE); - writeb(BIN2BCD(tm->tm_mon + 1), S3C2410_RTCMON); - writeb(BIN2BCD(tm->tm_year - 100), S3C2410_RTCYEAR); + pr_debug("set time %02d.%02d.%02d %02d/%02d/%02d\n", + tm->tm_year, tm->tm_mon, tm->tm_mday, + tm->tm_hour, tm->tm_min, tm->tm_sec); + + writeb(BIN2BCD(tm->tm_sec), base + S3C2410_RTCSEC); + writeb(BIN2BCD(tm->tm_min), base + S3C2410_RTCMIN); + writeb(BIN2BCD(tm->tm_hour), base + S3C2410_RTCHOUR); + writeb(BIN2BCD(tm->tm_mday), base + S3C2410_RTCDATE); + writeb(BIN2BCD(tm->tm_mon + 1), base + S3C2410_RTCMON); + writeb(BIN2BCD(tm->tm_year - 100), base + S3C2410_RTCYEAR); return 0; } @@ -169,16 +178,17 @@ static int s3c_rtc_settime(struct device *dev, struct rtc_time *tm) static int s3c_rtc_getalarm(struct device *dev, struct rtc_wkalrm *alrm) { struct rtc_time *alm_tm = &alrm->time; + void __iomem *base = s3c_rtc_base; unsigned int alm_en; - alm_tm->tm_sec = readb(S3C2410_ALMSEC); - alm_tm->tm_min = readb(S3C2410_ALMMIN); - alm_tm->tm_hour = readb(S3C2410_ALMHOUR); - alm_tm->tm_mon = readb(S3C2410_ALMMON); - alm_tm->tm_mday = readb(S3C2410_ALMDATE); - alm_tm->tm_year = readb(S3C2410_ALMYEAR); + alm_tm->tm_sec = readb(base + S3C2410_ALMSEC); + alm_tm->tm_min = readb(base + S3C2410_ALMMIN); + alm_tm->tm_hour = readb(base + S3C2410_ALMHOUR); + alm_tm->tm_mon = readb(base + S3C2410_ALMMON); + alm_tm->tm_mday = readb(base + S3C2410_ALMDATE); + alm_tm->tm_year = readb(base + S3C2410_ALMYEAR); - alm_en = readb(S3C2410_RTCALM); + alm_en = readb(base + S3C2410_RTCALM); pr_debug("read alarm %02x %02x.%02x.%02x %02x/%02x/%02x\n", alm_en, @@ -226,6 +236,7 @@ static int s3c_rtc_getalarm(struct device *dev, struct rtc_wkalrm *alrm) static int s3c_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm) { struct rtc_time *tm = &alrm->time; + void __iomem *base = s3c_rtc_base; unsigned int alrm_en; pr_debug("s3c_rtc_setalarm: %d, %02x/%02x/%02x %02x.%02x.%02x\n", @@ -234,32 +245,32 @@ static int s3c_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm) tm->tm_hour & 0xff, tm->tm_min & 0xff, tm->tm_sec); - alrm_en = readb(S3C2410_RTCALM) & S3C2410_RTCALM_ALMEN; - writeb(0x00, S3C2410_RTCALM); + alrm_en = readb(base + S3C2410_RTCALM) & S3C2410_RTCALM_ALMEN; + writeb(0x00, base + S3C2410_RTCALM); if (tm->tm_sec < 60 && tm->tm_sec >= 0) { alrm_en |= S3C2410_RTCALM_SECEN; - writeb(BIN2BCD(tm->tm_sec), S3C2410_ALMSEC); + writeb(BIN2BCD(tm->tm_sec), base + S3C2410_ALMSEC); } if (tm->tm_min < 60 && tm->tm_min >= 0) { alrm_en |= S3C2410_RTCALM_MINEN; - writeb(BIN2BCD(tm->tm_min), S3C2410_ALMMIN); + writeb(BIN2BCD(tm->tm_min), base + S3C2410_ALMMIN); } if (tm->tm_hour < 24 && tm->tm_hour >= 0) { alrm_en |= S3C2410_RTCALM_HOUREN; - writeb(BIN2BCD(tm->tm_hour), S3C2410_ALMHOUR); + writeb(BIN2BCD(tm->tm_hour), base + S3C2410_ALMHOUR); } pr_debug("setting S3C2410_RTCALM to %08x\n", alrm_en); - writeb(alrm_en, S3C2410_RTCALM); + writeb(alrm_en, base + S3C2410_RTCALM); if (0) { - alrm_en = readb(S3C2410_RTCALM); + alrm_en = readb(base + S3C2410_RTCALM); alrm_en &= ~S3C2410_RTCALM_ALMEN; - writeb(alrm_en, S3C2410_RTCALM); + writeb(alrm_en, base + S3C2410_RTCALM); disable_irq_wake(s3c_rtc_alarmno); } @@ -319,8 +330,8 @@ static int s3c_rtc_ioctl(struct device *dev, static int s3c_rtc_proc(struct device *dev, struct seq_file *seq) { - unsigned int rtcalm = readb(S3C2410_RTCALM); - unsigned int ticnt = readb (S3C2410_TICNT); + unsigned int rtcalm = readb(s3c_rtc_base + S3C2410_RTCALM); + unsigned int ticnt = readb(s3c_rtc_base + S3C2410_TICNT); seq_printf(seq, "alarm_IRQ\t: %s\n", (rtcalm & S3C2410_RTCALM_ALMEN) ? "yes" : "no" ); @@ -387,39 +398,40 @@ static struct rtc_class_ops s3c_rtcops = { static void s3c_rtc_enable(struct platform_device *pdev, int en) { + void __iomem *base = s3c_rtc_base; unsigned int tmp; if (s3c_rtc_base == NULL) return; if (!en) { - tmp = readb(S3C2410_RTCCON); - writeb(tmp & ~S3C2410_RTCCON_RTCEN, S3C2410_RTCCON); + tmp = readb(base + S3C2410_RTCCON); + writeb(tmp & ~S3C2410_RTCCON_RTCEN, base + S3C2410_RTCCON); - tmp = readb(S3C2410_TICNT); - writeb(tmp & ~S3C2410_TICNT_ENABLE, S3C2410_TICNT); + tmp = readb(base + S3C2410_TICNT); + writeb(tmp & ~S3C2410_TICNT_ENABLE, base + S3C2410_TICNT); } else { /* re-enable the device, and check it is ok */ - if ((readb(S3C2410_RTCCON) & S3C2410_RTCCON_RTCEN) == 0){ + if ((readb(base+S3C2410_RTCCON) & S3C2410_RTCCON_RTCEN) == 0){ dev_info(&pdev->dev, "rtc disabled, re-enabling\n"); - tmp = readb(S3C2410_RTCCON); - writeb(tmp | S3C2410_RTCCON_RTCEN , S3C2410_RTCCON); + tmp = readb(base + S3C2410_RTCCON); + writeb(tmp|S3C2410_RTCCON_RTCEN, base+S3C2410_RTCCON); } - if ((readb(S3C2410_RTCCON) & S3C2410_RTCCON_CNTSEL)){ + if ((readb(base + S3C2410_RTCCON) & S3C2410_RTCCON_CNTSEL)){ dev_info(&pdev->dev, "removing RTCCON_CNTSEL\n"); - tmp = readb(S3C2410_RTCCON); - writeb(tmp& ~S3C2410_RTCCON_CNTSEL , S3C2410_RTCCON); + tmp = readb(base + S3C2410_RTCCON); + writeb(tmp& ~S3C2410_RTCCON_CNTSEL, base+S3C2410_RTCCON); } - if ((readb(S3C2410_RTCCON) & S3C2410_RTCCON_CLKRST)){ + if ((readb(base + S3C2410_RTCCON) & S3C2410_RTCCON_CLKRST)){ dev_info(&pdev->dev, "removing RTCCON_CLKRST\n"); - tmp = readb(S3C2410_RTCCON); - writeb(tmp & ~S3C2410_RTCCON_CLKRST, S3C2410_RTCCON); + tmp = readb(base + S3C2410_RTCCON); + writeb(tmp & ~S3C2410_RTCCON_CLKRST, base+S3C2410_RTCCON); } } } @@ -475,8 +487,8 @@ static int s3c_rtc_probe(struct platform_device *pdev) } s3c_rtc_mem = request_mem_region(res->start, - res->end-res->start+1, - pdev->name); + res->end-res->start+1, + pdev->name); if (s3c_rtc_mem == NULL) { dev_err(&pdev->dev, "failed to reserve memory region\n"); @@ -495,7 +507,8 @@ static int s3c_rtc_probe(struct platform_device *pdev) s3c_rtc_enable(pdev, 1); - pr_debug("s3c2410_rtc: RTCCON=%02x\n", readb(S3C2410_RTCCON)); + pr_debug("s3c2410_rtc: RTCCON=%02x\n", + readb(s3c_rtc_base + S3C2410_RTCCON)); s3c_rtc_setfreq(s3c_rtc_freq); @@ -543,7 +556,7 @@ static int s3c_rtc_suspend(struct platform_device *pdev, pm_message_t state) /* save TICNT for anyone using periodic interrupts */ - ticnt_save = readb(S3C2410_TICNT); + ticnt_save = readb(s3c_rtc_base + S3C2410_TICNT); /* calculate time delta for suspend */ @@ -567,7 +580,7 @@ static int s3c_rtc_resume(struct platform_device *pdev) rtc_tm_to_time(&tm, &time.tv_sec); restore_time_delta(&s3c_rtc_delta, &time); - writeb(ticnt_save, S3C2410_TICNT); + writeb(ticnt_save, s3c_rtc_base + S3C2410_TICNT); return 0; } #else diff --git a/include/asm-arm/arch-s3c2410/regs-rtc.h b/include/asm-arm/arch-s3c2410/regs-rtc.h index 228983f89bc8..0fbec07bb6b8 100644 --- a/include/asm-arm/arch-s3c2410/regs-rtc.h +++ b/include/asm-arm/arch-s3c2410/regs-rtc.h @@ -18,7 +18,7 @@ #ifndef __ASM_ARCH_REGS_RTC_H #define __ASM_ARCH_REGS_RTC_H __FILE__ -#define S3C2410_RTCREG(x) ((x) + S3C24XX_VA_RTC) +#define S3C2410_RTCREG(x) (x) #define S3C2410_RTCCON S3C2410_RTCREG(0x40) #define S3C2410_RTCCON_RTCEN (1<<0) From c06aad854fdb9da38fcc22dccfe9d72919453e43 Mon Sep 17 00:00:00 2001 From: Daniel Kobras Date: Sun, 27 Aug 2006 01:23:24 -0700 Subject: [PATCH 345/488] [PATCH] dm: Fix deadlock under high i/o load in raid1 setup. On an nForce4-equipped machine with two SATA disk in raid1 setup using dmraid, we experienced frequent deadlock of the system under high i/o load. 'cat /dev/zero > ~/zero' was the most reliable way to reproduce them: Randomly after a few GB, 'cp' would be left in 'D' state along with kjournald and kmirrord. The functions cp and kjournald were blocked in did vary, but kmirrord's wchan always pointed to 'mempool_alloc()'. We've seen this pattern on 2.6.15 and 2.6.17 kernels. http://lkml.org/lkml/2005/4/20/142 indicates that this problem has been around even before. So much for the facts, here's my interpretation: mempool_alloc() first tries to atomically allocate the requested memory, or falls back to hand out preallocated chunks from the mempool. If both fail, it puts the calling process (kmirrord in this case) on a private waitqueue until somebody refills the pool. Where the only 'somebody' is kmirrord itself, so we have a deadlock. I worked around this problem by falling back to a (blocking) kmalloc when before kmirrord would have ended up on the waitqueue. This defeats part of the benefits of using the mempool, but at least keeps the system running. And it could be done with a two-line change. Note that mempool_alloc() clears the GFP_NOIO flag internally, and only uses it to decide whether to wait or return an error if immediate allocation fails, so the attached patch doesn't change behaviour in the non-deadlocking case. Path is against current git (2.6.18-rc4), but should apply to earlier versions as well. I've tested on 2.6.15, where this patch makes the difference between random lockup and a stable system. Signed-off-by: Daniel Kobras Acked-by: Alasdair G Kergon Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/md/dm-raid1.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c index be48cedf986b..c54de989eb00 100644 --- a/drivers/md/dm-raid1.c +++ b/drivers/md/dm-raid1.c @@ -255,7 +255,9 @@ static struct region *__rh_alloc(struct region_hash *rh, region_t region) struct region *reg, *nreg; read_unlock(&rh->hash_lock); - nreg = mempool_alloc(rh->region_pool, GFP_NOIO); + nreg = mempool_alloc(rh->region_pool, GFP_ATOMIC); + if (unlikely(!nreg)) + nreg = kmalloc(sizeof(struct region), GFP_NOIO); nreg->state = rh->log->type->in_sync(rh->log, region, 1) ? RH_CLEAN : RH_NOSYNC; nreg->rh = rh; From b6b5bce3571e496504a89ee575d32101e0a98b93 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Sun, 27 Aug 2006 01:23:25 -0700 Subject: [PATCH 346/488] [PATCH] swsusp: Fix swap_type_of There is a bug in mm/swapfile.c#swap_type_of() that makes swsusp only be able to use the first active swap partition as the resume device. Fix it. Signed-off-by: Rafael J. Wysocki Cc: Hugh Dickins Acked-by: Pavel Machek Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/swapfile.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/mm/swapfile.c b/mm/swapfile.c index e70d6c6d6fee..f1f5ec783781 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -442,11 +442,12 @@ int swap_type_of(dev_t device) if (!(swap_info[i].flags & SWP_WRITEOK)) continue; + if (!device) { spin_unlock(&swap_lock); return i; } - inode = swap_info->swap_file->f_dentry->d_inode; + inode = swap_info[i].swap_file->f_dentry->d_inode; if (S_ISBLK(inode->i_mode) && device == MKDEV(imajor(inode), iminor(inode))) { spin_unlock(&swap_lock); From 641741e010b615bae417c876a21d17dbd616241f Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Sun, 27 Aug 2006 01:23:27 -0700 Subject: [PATCH 347/488] [PATCH] rtc-s3c.c: fix time setting checks Fix the year check on setting the time with the S3C24XX RTC driver. Also move the debug to before the set to see what is going on if it does fail. Signed-off-by: Ben Dooks Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/rtc/rtc-s3c.c | 17 +++++++++-------- 1 file changed, 9 insertions(+), 8 deletions(-) diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c index aacbfea98678..2c7de79c83b9 100644 --- a/drivers/rtc/rtc-s3c.c +++ b/drivers/rtc/rtc-s3c.c @@ -153,24 +153,25 @@ static int s3c_rtc_gettime(struct device *dev, struct rtc_time *rtc_tm) static int s3c_rtc_settime(struct device *dev, struct rtc_time *tm) { void __iomem *base = s3c_rtc_base; - - /* the rtc gets round the y2k problem by just not supporting it */ - - if (tm->tm_year > 100) { - dev_err(dev, "rtc only supports 100 years\n"); - return -EINVAL; - } + int year = tm->tm_year - 100; pr_debug("set time %02d.%02d.%02d %02d/%02d/%02d\n", tm->tm_year, tm->tm_mon, tm->tm_mday, tm->tm_hour, tm->tm_min, tm->tm_sec); + /* we get around y2k by simply not supporting it */ + + if (year < 0 || year >= 100) { + dev_err(dev, "rtc only supports 100 years\n"); + return -EINVAL; + } + writeb(BIN2BCD(tm->tm_sec), base + S3C2410_RTCSEC); writeb(BIN2BCD(tm->tm_min), base + S3C2410_RTCMIN); writeb(BIN2BCD(tm->tm_hour), base + S3C2410_RTCHOUR); writeb(BIN2BCD(tm->tm_mday), base + S3C2410_RTCDATE); writeb(BIN2BCD(tm->tm_mon + 1), base + S3C2410_RTCMON); - writeb(BIN2BCD(tm->tm_year - 100), base + S3C2410_RTCYEAR); + writeb(BIN2BCD(year), base + S3C2410_RTCYEAR); return 0; } From cc36e7f124da139a819ad316c39d9dbcb5ba1897 Mon Sep 17 00:00:00 2001 From: Rolf Eike Beer Date: Sun, 27 Aug 2006 01:23:27 -0700 Subject: [PATCH 348/488] [PATCH] tty: remove bogus call to cdev_del() When cdev_add() failed there is no reason to call cdev_del(). Signed-off-by: Rolf Eike Beer Cc: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/tty_io.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c index bfdb90242a90..d6e4eaa48538 100644 --- a/drivers/char/tty_io.c +++ b/drivers/char/tty_io.c @@ -3094,7 +3094,6 @@ int tty_register_driver(struct tty_driver *driver) driver->cdev.owner = driver->owner; error = cdev_add(&driver->cdev, dev, driver->num); if (error) { - cdev_del(&driver->cdev); unregister_chrdev_region(dev, driver->num); driver->ttys = NULL; driver->termios = driver->termios_locked = NULL; From a2e0b56316fa90e137802fdad6a7c6a9b85c86c3 Mon Sep 17 00:00:00 2001 From: Alexey Dobriyan Date: Sun, 27 Aug 2006 01:23:28 -0700 Subject: [PATCH 349/488] [PATCH] Fix docs for fs.suid_dumpable Sergey Vlasov noticed that there is not kernel.suid_dumpable, but fs.suid_dumpable. How KERN_SETUID_DUMPABLE ended up in fs_table[]? Hell knows... Signed-off-by: Alexey Dobriyan Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/sysctl/fs.txt | 20 ++++++++++++++++++++ Documentation/sysctl/kernel.txt | 20 -------------------- 2 files changed, 20 insertions(+), 20 deletions(-) diff --git a/Documentation/sysctl/fs.txt b/Documentation/sysctl/fs.txt index 0b62c62142cf..5c3a51905969 100644 --- a/Documentation/sysctl/fs.txt +++ b/Documentation/sysctl/fs.txt @@ -25,6 +25,7 @@ Currently, these files are in /proc/sys/fs: - inode-state - overflowuid - overflowgid +- suid_dumpable - super-max - super-nr @@ -131,6 +132,25 @@ The default is 65534. ============================================================== +suid_dumpable: + +This value can be used to query and set the core dump mode for setuid +or otherwise protected/tainted binaries. The modes are + +0 - (default) - traditional behaviour. Any process which has changed + privilege levels or is execute only will not be dumped +1 - (debug) - all processes dump core when possible. The core dump is + owned by the current user and no security is applied. This is + intended for system debugging situations only. Ptrace is unchecked. +2 - (suidsafe) - any binary which normally would not be dumped is dumped + readable by root only. This allows the end user to remove + such a dump but not access it directly. For security reasons + core dumps in this mode will not overwrite one another or + other files. This mode is appropriate when adminstrators are + attempting to debug problems in a normal environment. + +============================================================== + super-max & super-nr: These numbers control the maximum number of superblocks, and diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt index 7345c338080a..89bf8c20a586 100644 --- a/Documentation/sysctl/kernel.txt +++ b/Documentation/sysctl/kernel.txt @@ -50,7 +50,6 @@ show up in /proc/sys/kernel: - shmmax [ sysv ipc ] - shmmni - stop-a [ SPARC only ] -- suid_dumpable - sysrq ==> Documentation/sysrq.txt - tainted - threads-max @@ -310,25 +309,6 @@ kernel. This value defaults to SHMMAX. ============================================================== -suid_dumpable: - -This value can be used to query and set the core dump mode for setuid -or otherwise protected/tainted binaries. The modes are - -0 - (default) - traditional behaviour. Any process which has changed - privilege levels or is execute only will not be dumped -1 - (debug) - all processes dump core when possible. The core dump is - owned by the current user and no security is applied. This is - intended for system debugging situations only. Ptrace is unchecked. -2 - (suidsafe) - any binary which normally would not be dumped is dumped - readable by root only. This allows the end user to remove - such a dump but not access it directly. For security reasons - core dumps in this mode will not overwrite one another or - other files. This mode is appropriate when adminstrators are - attempting to debug problems in a normal environment. - -============================================================== - tainted: Non-zero if the kernel has been tainted. Numeric values, which From 7334bb4ae931159384acf168eacb0d5d6e0d083c Mon Sep 17 00:00:00 2001 From: Danny Tholen Date: Sun, 27 Aug 2006 01:23:29 -0700 Subject: [PATCH 350/488] [PATCH] 1394: fix for recently added firewire patch that breaks things on ppc Recently a patch was added for preliminary suspend/resume handling on !PPC_PMAC. However, this broke both suspend and firewire on powerpc because it saves the pci state after the device has already been disabled. This moves the save state to before the pmac specific code. Signed-off-by: Danny Tholen Cc: Stefan Richter Acked-by: Benjamin Herrenschmidt Cc: Ben Collins Cc: Jody McIntyre Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/ieee1394/ohci1394.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/ieee1394/ohci1394.c b/drivers/ieee1394/ohci1394.c index d4bad6704bbe..448df2773377 100644 --- a/drivers/ieee1394/ohci1394.c +++ b/drivers/ieee1394/ohci1394.c @@ -3552,6 +3552,8 @@ static int ohci1394_pci_resume (struct pci_dev *pdev) static int ohci1394_pci_suspend (struct pci_dev *pdev, pm_message_t state) { + pci_save_state(pdev); + #ifdef CONFIG_PPC_PMAC if (machine_is(powermac)) { struct device_node *of_node; @@ -3563,8 +3565,6 @@ static int ohci1394_pci_suspend (struct pci_dev *pdev, pm_message_t state) } #endif - pci_save_state(pdev); - return 0; } From 6946bd636364effce06ea46fe8f8cd6e2edb004e Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Sun, 27 Aug 2006 01:23:31 -0700 Subject: [PATCH 351/488] [PATCH] lockdep: fix blkdev_open() warning On Wed, 2006-08-09 at 07:57 +0200, Rolf Eike Beer wrote: > ============================================= > [ INFO: possible recursive locking detected ] > --------------------------------------------- > parted/7929 is trying to acquire lock: > (&bdev->bd_mutex){--..}, at: [] __blkdev_put+0x1e/0x13c > > but task is already holding lock: > (&bdev->bd_mutex){--..}, at: [] do_open+0x72/0x3a8 > > other info that might help us debug this: > 1 lock held by parted/7929: > #0: (&bdev->bd_mutex){--..}, at: [] do_open+0x72/0x3a8 > stack backtrace: > [] show_trace_log_lvl+0x58/0x15b > [] show_trace+0xd/0x10 > [] dump_stack+0x17/0x1a > [] __lock_acquire+0x753/0x99c > [] lock_acquire+0x4a/0x6a > [] mutex_lock_nested+0xc8/0x20c > [] __blkdev_put+0x1e/0x13c > [] blkdev_put+0xa/0xc > [] do_open+0x336/0x3a8 > [] blkdev_open+0x1f/0x4c > [] __dentry_open+0xc7/0x1aa > [] nameidata_to_filp+0x1c/0x2e > [] do_filp_open+0x2e/0x35 > [] do_sys_open+0x38/0x68 > [] sys_open+0x16/0x18 > [] sysenter_past_esp+0x56/0x8d OK, I'm having a look here; its all new to me so bear with me. blkdev_open() calls do_open(bdev, ...,BD_MUTEX_NORMAL) and takes mutex_lock_nested(&bdev->bd_mutex, BD_MUTEX_NORMAL) then something fails, and we're thrown to: out_first: where if (bdev != bdev->bd_contains) blkdev_put(bdev->bd_contains) which is __blkdev_put(bdev->bd_contains, BD_MUTEX_NORMAL) which does mutex_lock_nested(&bdev->bd_contains->bd_mutex, BD_MUTEX_NORMAL) <--- lockdep trigger When going to out_first, dbev->bd_contains is either bdev or whole, and since we take the branch it must be whole. So it seems to me the following patch would be the right one: [akpm@osdl.org: compile fix] Signed-off-by: Peter Zijlstra Cc: Arjan van de Ven Acked-by: NeilBrown Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/block_dev.c | 114 ++++++++++++++++++++++++------------------------- 1 file changed, 56 insertions(+), 58 deletions(-) diff --git a/fs/block_dev.c b/fs/block_dev.c index 37534573960b..045f98854f14 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -884,6 +884,61 @@ void bd_set_size(struct block_device *bdev, loff_t size) } EXPORT_SYMBOL(bd_set_size); +static int __blkdev_put(struct block_device *bdev, unsigned int subclass) +{ + int ret = 0; + struct inode *bd_inode = bdev->bd_inode; + struct gendisk *disk = bdev->bd_disk; + + mutex_lock_nested(&bdev->bd_mutex, subclass); + lock_kernel(); + if (!--bdev->bd_openers) { + sync_blockdev(bdev); + kill_bdev(bdev); + } + if (bdev->bd_contains == bdev) { + if (disk->fops->release) + ret = disk->fops->release(bd_inode, NULL); + } else { + mutex_lock_nested(&bdev->bd_contains->bd_mutex, + subclass + 1); + bdev->bd_contains->bd_part_count--; + mutex_unlock(&bdev->bd_contains->bd_mutex); + } + if (!bdev->bd_openers) { + struct module *owner = disk->fops->owner; + + put_disk(disk); + module_put(owner); + + if (bdev->bd_contains != bdev) { + kobject_put(&bdev->bd_part->kobj); + bdev->bd_part = NULL; + } + bdev->bd_disk = NULL; + bdev->bd_inode->i_data.backing_dev_info = &default_backing_dev_info; + if (bdev != bdev->bd_contains) + __blkdev_put(bdev->bd_contains, subclass + 1); + bdev->bd_contains = NULL; + } + unlock_kernel(); + mutex_unlock(&bdev->bd_mutex); + bdput(bdev); + return ret; +} + +int blkdev_put(struct block_device *bdev) +{ + return __blkdev_put(bdev, BD_MUTEX_NORMAL); +} +EXPORT_SYMBOL(blkdev_put); + +int blkdev_put_partition(struct block_device *bdev) +{ + return __blkdev_put(bdev, BD_MUTEX_PARTITION); +} +EXPORT_SYMBOL(blkdev_put_partition); + static int blkdev_get_whole(struct block_device *bdev, mode_t mode, unsigned flags); @@ -980,7 +1035,7 @@ out_first: bdev->bd_disk = NULL; bdev->bd_inode->i_data.backing_dev_info = &default_backing_dev_info; if (bdev != bdev->bd_contains) - blkdev_put(bdev->bd_contains); + __blkdev_put(bdev->bd_contains, BD_MUTEX_WHOLE); bdev->bd_contains = NULL; put_disk(disk); module_put(owner); @@ -1079,63 +1134,6 @@ static int blkdev_open(struct inode * inode, struct file * filp) return res; } -static int __blkdev_put(struct block_device *bdev, unsigned int subclass) -{ - int ret = 0; - struct inode *bd_inode = bdev->bd_inode; - struct gendisk *disk = bdev->bd_disk; - - mutex_lock_nested(&bdev->bd_mutex, subclass); - lock_kernel(); - if (!--bdev->bd_openers) { - sync_blockdev(bdev); - kill_bdev(bdev); - } - if (bdev->bd_contains == bdev) { - if (disk->fops->release) - ret = disk->fops->release(bd_inode, NULL); - } else { - mutex_lock_nested(&bdev->bd_contains->bd_mutex, - subclass + 1); - bdev->bd_contains->bd_part_count--; - mutex_unlock(&bdev->bd_contains->bd_mutex); - } - if (!bdev->bd_openers) { - struct module *owner = disk->fops->owner; - - put_disk(disk); - module_put(owner); - - if (bdev->bd_contains != bdev) { - kobject_put(&bdev->bd_part->kobj); - bdev->bd_part = NULL; - } - bdev->bd_disk = NULL; - bdev->bd_inode->i_data.backing_dev_info = &default_backing_dev_info; - if (bdev != bdev->bd_contains) - __blkdev_put(bdev->bd_contains, subclass + 1); - bdev->bd_contains = NULL; - } - unlock_kernel(); - mutex_unlock(&bdev->bd_mutex); - bdput(bdev); - return ret; -} - -int blkdev_put(struct block_device *bdev) -{ - return __blkdev_put(bdev, BD_MUTEX_NORMAL); -} - -EXPORT_SYMBOL(blkdev_put); - -int blkdev_put_partition(struct block_device *bdev) -{ - return __blkdev_put(bdev, BD_MUTEX_PARTITION); -} - -EXPORT_SYMBOL(blkdev_put_partition); - static int blkdev_close(struct inode * inode, struct file * filp) { struct block_device *bdev = I_BDEV(filp->f_mapping->host); From 7fd5aecc5d32882f8e29b14370e9ce2520e7e56f Mon Sep 17 00:00:00 2001 From: Richard Purdie Date: Sun, 27 Aug 2006 01:23:33 -0700 Subject: [PATCH 352/488] [PATCH] mtd corruption fix Read the return value before we release the nand device otherwise the value can become corrupted by another user of chip->ops, ultimately resulting in filesystem corruption. Signed-off-by: Richard Purdie Cc: David Woodhouse Acked-by: Josh Boyer Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/mtd/nand/nand_base.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 62b861304e03..c8cbc00243fe 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -1093,9 +1093,10 @@ static int nand_read(struct mtd_info *mtd, loff_t from, size_t len, ret = nand_do_read_ops(mtd, from, &chip->ops); + *retlen = chip->ops.retlen; + nand_release_device(mtd); - *retlen = chip->ops.retlen; return ret; } @@ -1691,9 +1692,10 @@ static int nand_write(struct mtd_info *mtd, loff_t to, size_t len, ret = nand_do_write_ops(mtd, to, &chip->ops); + *retlen = chip->ops.retlen; + nand_release_device(mtd); - *retlen = chip->ops.retlen; return ret; } From cb3e0fe3a5dabdc5eda50b825acb23bdfa2d1d55 Mon Sep 17 00:00:00 2001 From: Thomas Meyer Date: Sun, 27 Aug 2006 01:23:33 -0700 Subject: [PATCH 353/488] [PATCH] x86: Fix dmi detection of MacBookPro and iMac Commit b64ef8afa58f397e1eaba2bd9ecaa6812064d464 ("[PATCH] add imacfb documentation and detection") contained a wrong DMI_MATCH. Signed-off-by: Thomas Meyer Cc: Greg KH Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/imacfb.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/video/imacfb.c b/drivers/video/imacfb.c index b485bece5fc9..18ea4a549105 100644 --- a/drivers/video/imacfb.c +++ b/drivers/video/imacfb.c @@ -71,10 +71,10 @@ static int set_system(struct dmi_system_id *id) static struct dmi_system_id __initdata dmi_system_table[] = { { set_system, "iMac4,1", { DMI_MATCH(DMI_BIOS_VENDOR,"Apple Computer, Inc."), - DMI_MATCH(DMI_BIOS_VERSION,"iMac4,1") }, (void*)M_I17}, + DMI_MATCH(DMI_PRODUCT_NAME,"iMac4,1") }, (void*)M_I17}, { set_system, "MacBookPro1,1", { DMI_MATCH(DMI_BIOS_VENDOR,"Apple Computer, Inc."), - DMI_MATCH(DMI_BIOS_VERSION,"MacBookPro1,1") }, (void*)M_I17}, + DMI_MATCH(DMI_PRODUCT_NAME,"MacBookPro1,1") }, (void*)M_I17}, { set_system, "MacBook1,1", { DMI_MATCH(DMI_BIOS_VENDOR,"Apple Computer, Inc."), DMI_MATCH(DMI_PRODUCT_NAME,"MacBook1,1")}, (void *)M_MACBOOK}, From f8986c241dfd54d51c9eff967129a550ae230144 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Sun, 27 Aug 2006 01:23:34 -0700 Subject: [PATCH 354/488] [PATCH] revert "Drop tasklist lock in do_sched_setscheduler" sched_setscheduler() looks at ->signal->rlim[]. It is unsafe do dereference ->signal unless tasklist_lock or ->siglock is held (or p == current). We pin the task structure, but this can't prevent from release_task()->__exit_signal() which sets ->signal = NULL. Restore tasklist_lock across the setscheduler call. Signed-off-by: Oleg Nesterov Cc: Greg KH Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/sched.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/kernel/sched.c b/kernel/sched.c index a2be2d055299..a234fbee1238 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -4162,10 +4162,8 @@ do_sched_setscheduler(pid_t pid, int policy, struct sched_param __user *param) read_unlock_irq(&tasklist_lock); return -ESRCH; } - get_task_struct(p); - read_unlock_irq(&tasklist_lock); retval = sched_setscheduler(p, policy, &lparam); - put_task_struct(p); + read_unlock_irq(&tasklist_lock); return retval; } From a0cc621f52a4dea10c34eeed6eb4e36b26db63dc Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Sun, 27 Aug 2006 01:23:35 -0700 Subject: [PATCH 355/488] [PATCH] cpufreq: acpi-cpufreq: Ignore failure from acpi_cpufreq_early_init_acpi Ignore the return value of early_init_acpi(), as it can give false error messages. If there is something really wrong, then register_driver will fail cleanly with EINVAL later. [ background: modprobe acpi-cpufreq on systems not capable of speed-scaling started failing with 'invalid argument', where previously it would only ever -ENODEV I'm not 100% happy with the solution. It'd be better to handle failure properly, but this is a low-impact change for 2.6.18 We can always revisit doing this better in .19 --davej.] Signed-off-by: Venkatesh Pallipadi Signed-off-by: Dave Jones Cc: Greg KH Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c index efb41e81351c..e6ea00edcb54 100644 --- a/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c +++ b/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c @@ -567,16 +567,11 @@ static struct cpufreq_driver acpi_cpufreq_driver = { static int __init acpi_cpufreq_init (void) { - int result = 0; - dprintk("acpi_cpufreq_init\n"); - result = acpi_cpufreq_early_init_acpi(); + acpi_cpufreq_early_init_acpi(); - if (!result) - result = cpufreq_register_driver(&acpi_cpufreq_driver); - - return (result); + return cpufreq_register_driver(&acpi_cpufreq_driver); } From 01cfaf0d12ae5fa092cc916ca4066ee1598e857d Mon Sep 17 00:00:00 2001 From: Dirk Eibach Date: Sun, 27 Aug 2006 01:23:36 -0700 Subject: [PATCH 356/488] [PATCH] char/moxa.c: fix endianess and multiple-card issues While testing Moxa C218T/PCI on PowerPC 405EP I found that loading firmware using the linux kernel driver fails because calculation of the checksum is not endianess independent in the original code. After I fixed this I found that uploading firmware in a system with multiple cards causes a kernel oops. I had a look in the recent moxa sources and found that they do some kind of locking there. Applying this lock fixed the problem. Alan sayeth: Checksum changes are clearly correct. Other changes is an improvement but not I think enough to handle malicious firmware attacks. That said such an attacker has CAP_SYS_RAWIO anyway so that part is irrelevant except for neatness. [akpm@osdl.org: cleanups] Signed-off-by: Dirk Eibach Acked-by: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/moxa.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/char/moxa.c b/drivers/char/moxa.c index 4ea7bd5f4f56..a369dd6877d8 100644 --- a/drivers/char/moxa.c +++ b/drivers/char/moxa.c @@ -142,6 +142,7 @@ typedef struct _moxa_board_conf { static moxa_board_conf moxa_boards[MAX_BOARDS]; static void __iomem *moxaBaseAddr[MAX_BOARDS]; +static int loadstat[MAX_BOARDS]; struct moxa_str { int type; @@ -1688,6 +1689,8 @@ int MoxaDriverPoll(void) if (moxaCard == 0) return (-1); for (card = 0; card < MAX_BOARDS; card++) { + if (loadstat[card] == 0) + continue; if ((ports = moxa_boards[card].numPorts) == 0) continue; if (readb(moxaIntPend[card]) == 0xff) { @@ -2903,6 +2906,7 @@ static int moxaloadcode(int cardno, unsigned char __user *tmp, int len) } break; } + loadstat[cardno] = 1; return (0); } @@ -2920,7 +2924,7 @@ static int moxaloadc218(int cardno, void __iomem *baseAddr, int len) len1 = len >> 1; ptr = (ushort *) moxaBuff; for (i = 0; i < len1; i++) - usum += *(ptr + i); + usum += le16_to_cpu(*(ptr + i)); retry = 0; do { len1 = len >> 1; @@ -2992,7 +2996,7 @@ static int moxaloadc320(int cardno, void __iomem *baseAddr, int len, int *numPor wlen = len >> 1; uptr = (ushort *) moxaBuff; for (i = 0; i < wlen; i++) - usum += uptr[i]; + usum += le16_to_cpu(uptr[i]); retry = 0; j = 0; do { From b8cf368944807e29b16b24588a2a35c829bc9d9a Mon Sep 17 00:00:00 2001 From: "Paul A. Clarke" Date: Sun, 27 Aug 2006 01:23:37 -0700 Subject: [PATCH 357/488] [PATCH] matroxfb: fix jittery display on non-ppc systems I wish I was happier about this patch. It'll serve as a placeholder for the moment. I'm still trying to get a G550 working in order to even reproduce the problem this patch introduces. I find that the G450 has jitter even without this patch, so it won't show me what the patch changed. At this point, I'll continue trying to get the G550 to work, and in parallel work with the G450 to work out the kinks. The patch is below. Set XDVICLKCTRL only on PPC, as doing this apparently introduces jitter on the G550, at least on x86 architectures. Signed-off-by: Paul A. Clarke Signed-off-by: Petr Vandrovec Cc: "Antonino A. Daplas" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/matrox/g450_pll.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/video/matrox/g450_pll.c b/drivers/video/matrox/g450_pll.c index 440272ad10e7..7c76e079ca7d 100644 --- a/drivers/video/matrox/g450_pll.c +++ b/drivers/video/matrox/g450_pll.c @@ -331,7 +331,15 @@ static int __g450_setclk(WPMINFO unsigned int fout, unsigned int pll, tmp |= M1064_XPIXCLKCTRL_PLL_UP; } matroxfb_DAC_out(PMINFO M1064_XPIXCLKCTRL, tmp); +#ifdef __powerpc__ + /* This is necessary to avoid jitter on PowerPC + * (OpenFirmware) systems, but apparently + * introduces jitter, at least on a x86-64 + * using DVI. + * A simple workaround is disable for non-PPC. + */ matroxfb_DAC_out(PMINFO M1064_XDVICLKCTRL, 0); +#endif /* __powerpc__ */ matroxfb_DAC_out(PMINFO M1064_XPWRCTRL, xpwrctrl); matroxfb_DAC_unlock_irqrestore(flags); From 533475d3d48eb839be2b57f6b020150abae91063 Mon Sep 17 00:00:00 2001 From: Samuel Thibault Date: Sun, 27 Aug 2006 01:23:39 -0700 Subject: [PATCH 358/488] [PATCH] vcsa attribute bits -> ioctl(VT_GETHIFONTMASK) When reading /dev/vcsa while a font with more than 256 characters is loaded, one of the attribute bits records the 9th bit of the character. But depending on the console driver (vgacon or fbcon for instance), that's bit 3 or bit 0. And there is no way for userland to know that, thus no way for userland to safely grab the screen content. So here is a (tested) patch: Add a VT_GETHIFONTMASK ioctl for knowing which bit is the 9th bit for VC text (vc_hi_font_mask field of the vc_data structure). Signed-off-by: Samuel Thibault Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/vt_ioctl.c | 2 ++ include/linux/compat_ioctl.h | 1 + include/linux/vt.h | 1 + 3 files changed, 4 insertions(+) diff --git a/drivers/char/vt_ioctl.c b/drivers/char/vt_ioctl.c index eccffaf26faa..a5628a8b6620 100644 --- a/drivers/char/vt_ioctl.c +++ b/drivers/char/vt_ioctl.c @@ -1011,6 +1011,8 @@ int vt_ioctl(struct tty_struct *tty, struct file * file, return -EPERM; vt_dont_switch = 0; return 0; + case VT_GETHIFONTMASK: + return put_user(vc->vc_hi_font_mask, (unsigned short __user *)arg); default: return -ENOIOCTLCMD; } diff --git a/include/linux/compat_ioctl.h b/include/linux/compat_ioctl.h index 269d000bb2a3..bea0255196c4 100644 --- a/include/linux/compat_ioctl.h +++ b/include/linux/compat_ioctl.h @@ -216,6 +216,7 @@ COMPATIBLE_IOCTL(VT_RESIZE) COMPATIBLE_IOCTL(VT_RESIZEX) COMPATIBLE_IOCTL(VT_LOCKSWITCH) COMPATIBLE_IOCTL(VT_UNLOCKSWITCH) +COMPATIBLE_IOCTL(VT_GETHIFONTMASK) /* Little p (/dev/rtc, /dev/envctrl, etc.) */ COMPATIBLE_IOCTL(RTC_AIE_ON) COMPATIBLE_IOCTL(RTC_AIE_OFF) diff --git a/include/linux/vt.h b/include/linux/vt.h index 8ab334a48222..ba806e8711be 100644 --- a/include/linux/vt.h +++ b/include/linux/vt.h @@ -60,5 +60,6 @@ struct vt_consize { #define VT_RESIZEX 0x560A /* set kernel's idea of screensize + more */ #define VT_LOCKSWITCH 0x560B /* disallow vt switching */ #define VT_UNLOCKSWITCH 0x560C /* allow vt switching */ +#define VT_GETHIFONTMASK 0x560D /* return hi font mask */ #endif /* _LINUX_VT_H */ From d015baebba44613ef59ddffeae2114fa4ede7104 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Sun, 27 Aug 2006 01:23:40 -0700 Subject: [PATCH 359/488] [PATCH] futex_find_get_task(): remove an obscure EXIT_ZOMBIE check futex_find_get_task: if (p->state == EXIT_ZOMBIE || p->exit_state == EXIT_ZOMBIE) return NULL; I can't understand this. First, p->state can't be EXIT_ZOMBIE. The ->exit_state check looks strange too. Sub-threads or tasks whose ->parent ignores SIGCHLD go directly to EXIT_DEAD state (I am ignoring a ptrace case). Why EXIT_DEAD tasks should be ok? Yes, EXIT_ZOMBIE is more important (a task may stay zombie for a long time), but this doesn't mean we should explicitely ignore other EXIT_XXX states. Signed-off-by: Oleg Nesterov Acked-by: Ingo Molnar Cc: Thomas Gleixner Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/futex.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/futex.c b/kernel/futex.c index d4633c588f33..b9b8aea5389e 100644 --- a/kernel/futex.c +++ b/kernel/futex.c @@ -397,7 +397,7 @@ static struct task_struct * futex_find_get_task(pid_t pid) p = NULL; goto out_unlock; } - if (p->state == EXIT_ZOMBIE || p->exit_state == EXIT_ZOMBIE) { + if (p->exit_state != 0) { p = NULL; goto out_unlock; } From fb8d81e47783f9198f3d6248bd4c0d16a1d5424e Mon Sep 17 00:00:00 2001 From: Jonathan McDowell Date: Sun, 27 Aug 2006 01:23:41 -0700 Subject: [PATCH 360/488] [PATCH] MTD NAND: Fix ams-delta after core conversion The recent hwctrl core conversion for MTD NAND devices broke the Amstrad Delta driver. This fixes it up and uses the existing control line defines rather than unclear magic numbers. Signed-off-by: Jonathan McDowell Acked-by: David Woodhouse Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/mtd/nand/ams-delta.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/mtd/nand/ams-delta.c b/drivers/mtd/nand/ams-delta.c index d7897dc6b3c8..a0ba07c36ee9 100644 --- a/drivers/mtd/nand/ams-delta.c +++ b/drivers/mtd/nand/ams-delta.c @@ -130,11 +130,13 @@ static void ams_delta_hwcontrol(struct mtd_info *mtd, int cmd, if (ctrl & NAND_CTRL_CHANGE) { unsigned long bits; - bits = (~ctrl & NAND_NCE) << 2; - bits |= (ctrl & NAND_CLE) << 7; - bits |= (ctrl & NAND_ALE) << 6; + bits = (~ctrl & NAND_NCE) ? AMS_DELTA_LATCH2_NAND_NCE : 0; + bits |= (ctrl & NAND_CLE) ? AMS_DELTA_LATCH2_NAND_CLE : 0; + bits |= (ctrl & NAND_ALE) ? AMS_DELTA_LATCH2_NAND_ALE : 0; - ams_delta_latch2_write(0xC2, bits); + ams_delta_latch2_write(AMS_DELTA_LATCH2_NAND_CLE | + AMS_DELTA_LATCH2_NAND_ALE | + AMS_DELTA_LATCH2_NAND_NCE, bits); } if (cmd != NAND_CMD_NONE) From f5fb09fa3392ad43fbcfc2f4580752f383ab5996 Mon Sep 17 00:00:00 2001 From: Andries Brouwer Date: Sun, 27 Aug 2006 01:23:42 -0700 Subject: [PATCH 361/488] [PATCH] Fix for minix crash Mounting a (corrupt) minix filesystem with zero s_zmap_blocks gives a spectacular crash on my 2.6.17.8 system, no doubt because minix/inode.c does an unconditional minix_set_bit(0,sbi->s_zmap[0]->b_data); [akpm@osdl.org: make labels conistent while we're there] Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/minix/inode.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/fs/minix/inode.c b/fs/minix/inode.c index 9ea91c5eeb7b..330ff9fc7cf0 100644 --- a/fs/minix/inode.c +++ b/fs/minix/inode.c @@ -204,6 +204,8 @@ static int minix_fill_super(struct super_block *s, void *data, int silent) /* * Allocate the buffer map to keep the superblock small. */ + if (sbi->s_imap_blocks == 0 || sbi->s_zmap_blocks == 0) + goto out_illegal_sb; i = (sbi->s_imap_blocks + sbi->s_zmap_blocks) * sizeof(bh); map = kmalloc(i, GFP_KERNEL); if (!map) @@ -263,7 +265,7 @@ out_no_root: out_no_bitmap: printk("MINIX-fs: bad superblock or unable to read bitmaps\n"); - out_freemap: +out_freemap: for (i = 0; i < sbi->s_imap_blocks; i++) brelse(sbi->s_imap[i]); for (i = 0; i < sbi->s_zmap_blocks; i++) @@ -276,11 +278,16 @@ out_no_map: printk("MINIX-fs: can't allocate map\n"); goto out_release; +out_illegal_sb: + if (!silent) + printk("MINIX-fs: bad superblock\n"); + goto out_release; + out_no_fs: if (!silent) printk("VFS: Can't find a Minix or Minix V2 filesystem " "on device %s\n", s->s_id); - out_release: +out_release: brelse(bh); goto out; @@ -290,7 +297,7 @@ out_bad_hblock: out_bad_sb: printk("MINIX-fs: unable to read superblock\n"); - out: +out: s->s_fs_info = NULL; kfree(sbi); return -EINVAL; From 607eb266aea9dd2abe515985e12c5cd8b32546e8 Mon Sep 17 00:00:00 2001 From: Andries Brouwer Date: Sun, 27 Aug 2006 01:23:43 -0700 Subject: [PATCH 362/488] [PATCH] ext2: prevent div-by-zero on corrupted fs Mounting an ext2 filesystem with zero s_inodes_per_group will cause a divide error. Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/ext2/super.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ext2/super.c b/fs/ext2/super.c index f2702cda9779..681dea8f9532 100644 --- a/fs/ext2/super.c +++ b/fs/ext2/super.c @@ -775,7 +775,7 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent) if (EXT2_INODE_SIZE(sb) == 0) goto cantfind_ext2; sbi->s_inodes_per_block = sb->s_blocksize / EXT2_INODE_SIZE(sb); - if (sbi->s_inodes_per_block == 0) + if (sbi->s_inodes_per_block == 0 || sbi->s_inodes_per_group == 0) goto cantfind_ext2; sbi->s_itb_per_group = sbi->s_inodes_per_group / sbi->s_inodes_per_block; From 08fb306fe63d98eb86e3b16f4cc21816fa47f18e Mon Sep 17 00:00:00 2001 From: Mingming Cao Date: Sun, 27 Aug 2006 01:23:44 -0700 Subject: [PATCH 363/488] [PATCH] ext3 filesystem bogus ENOSPC with reservation fix To handle the earlier bogus ENOSPC error caused by filesystem full of block reservation, current code falls back to non block reservation, starts to allocate block(s) from the goal allocation block group as if there is no block reservation. Current code needs to re-load the corresponding block group descriptor for the initial goal block group in this case. The patch fixes this. Signed-off-by: Mingming Cao Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/ext3/balloc.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/fs/ext3/balloc.c b/fs/ext3/balloc.c index a504a40d6d29..063d994bda0b 100644 --- a/fs/ext3/balloc.c +++ b/fs/ext3/balloc.c @@ -1269,12 +1269,12 @@ ext3_fsblk_t ext3_new_blocks(handle_t *handle, struct inode *inode, goal = le32_to_cpu(es->s_first_data_block); group_no = (goal - le32_to_cpu(es->s_first_data_block)) / EXT3_BLOCKS_PER_GROUP(sb); + goal_group = group_no; +retry_alloc: gdp = ext3_get_group_desc(sb, group_no, &gdp_bh); if (!gdp) goto io_error; - goal_group = group_no; -retry: free_blocks = le16_to_cpu(gdp->bg_free_blocks_count); /* * if there is not enough free blocks to make a new resevation @@ -1349,7 +1349,7 @@ retry: if (my_rsv) { my_rsv = NULL; group_no = goal_group; - goto retry; + goto retry_alloc; } /* No space left on the device */ *errp = -ENOSPC; From c37336b078ba9d2ff38c535b194996a7ad6e69f8 Mon Sep 17 00:00:00 2001 From: Evgeniy Dushistov Date: Sun, 27 Aug 2006 01:23:45 -0700 Subject: [PATCH 364/488] [PATCH] ufs: write to hole in big file On UFS, this scenario: open(O_TRUNC) lseek(1024 * 1024 * 80) write("A") lseek(1024 * 2) write("A") may cause access to invalid address. This happened because of "goal" is calculated in wrong way in block allocation path, as I see this problem exists also in 2.4. We use construction like this i_data[lastfrag], i_data array of pointers to direct blocks, indirect and so on, it has ceratain size ~20 elements, and lastfrag may have value for example 40000. Also this patch fixes related to handling such scenario issues, wrong zeroing metadata, in case of block(not fragment) allocation, and wrong goal calculation, when we allocate block Signed-off-by: Evgeniy Dushistov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/ufs/inode.c | 35 +++++++++++++++++++++-------------- 1 file changed, 21 insertions(+), 14 deletions(-) diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c index e7c8615beb65..30c6e8a9446c 100644 --- a/fs/ufs/inode.c +++ b/fs/ufs/inode.c @@ -169,18 +169,20 @@ static void ufs_clear_frag(struct inode *inode, struct buffer_head *bh) static struct buffer_head * ufs_clear_frags(struct inode *inode, sector_t beg, - unsigned int n) + unsigned int n, sector_t want) { - struct buffer_head *res, *bh; + struct buffer_head *res = NULL, *bh; sector_t end = beg + n; - res = sb_getblk(inode->i_sb, beg); - ufs_clear_frag(inode, res); - for (++beg; beg < end; ++beg) { + for (; beg < end; ++beg) { bh = sb_getblk(inode->i_sb, beg); ufs_clear_frag(inode, bh); - brelse(bh); + if (want != beg) + brelse(bh); + else + res = bh; } + BUG_ON(!res); return res; } @@ -265,7 +267,9 @@ repeat: lastfrag = ufsi->i_lastfrag; } - goal = fs32_to_cpu(sb, ufsi->i_u1.i_data[lastblock]) + uspi->s_fpb; + tmp = fs32_to_cpu(sb, ufsi->i_u1.i_data[lastblock]); + if (tmp) + goal = tmp + uspi->s_fpb; tmp = ufs_new_fragments (inode, p, fragment - blockoff, goal, required + blockoff, err, locked_page); @@ -277,13 +281,15 @@ repeat: tmp = ufs_new_fragments(inode, p, fragment - (blockoff - lastblockoff), fs32_to_cpu(sb, *p), required + (blockoff - lastblockoff), err, locked_page); - } + } else /* (lastblock > block) */ { /* * We will allocate new block before last allocated block */ - else /* (lastblock > block) */ { - if (lastblock && (tmp = fs32_to_cpu(sb, ufsi->i_u1.i_data[lastblock-1]))) - goal = tmp + uspi->s_fpb; + if (block) { + tmp = fs32_to_cpu(sb, ufsi->i_u1.i_data[block-1]); + if (tmp) + goal = tmp + uspi->s_fpb; + } tmp = ufs_new_fragments(inode, p, fragment - blockoff, goal, uspi->s_fpb, err, locked_page); } @@ -296,7 +302,7 @@ repeat: } if (!phys) { - result = ufs_clear_frags(inode, tmp + blockoff, required); + result = ufs_clear_frags(inode, tmp, required, tmp + blockoff); } else { *phys = tmp + blockoff; result = NULL; @@ -383,7 +389,7 @@ repeat: } } - if (block && (tmp = fs32_to_cpu(sb, ((__fs32*)bh->b_data)[block-1]) + uspi->s_fpb)) + if (block && (tmp = fs32_to_cpu(sb, ((__fs32*)bh->b_data)[block-1]))) goal = tmp + uspi->s_fpb; else goal = bh->b_blocknr + uspi->s_fpb; @@ -397,7 +403,8 @@ repeat: if (!phys) { - result = ufs_clear_frags(inode, tmp + blockoff, uspi->s_fpb); + result = ufs_clear_frags(inode, tmp, uspi->s_fpb, + tmp + blockoff); } else { *phys = tmp + blockoff; *new = 1; From ecdc63948763586e101108dfe1ba316ec069fe39 Mon Sep 17 00:00:00 2001 From: Evgeniy Dushistov Date: Sun, 27 Aug 2006 01:23:46 -0700 Subject: [PATCH 365/488] [PATCH] ufs: truncate correction 1) When we allocated last fragment in ufs_truncate, we read page, check if block mapped to address, and if not trying to allocate it. This is wrong behaviour, fragment may be NOT allocated, but mapped, this happened because of "block map" function not checked allocated fragment or not, it just take address of the first fragment in the block, add offset of fragment and return result, this is correct behaviour in almost all situation except call from ufs_truncate. 2) Almost all implementation of UFS, which I can investigate have such "defect": if you have full disk, and try truncate file, for example 3GB to 2MB, and have hole in this region, truncate return -ENOSPC. I tried evade from this problem, but "block allocation" algorithm is tied to right value of i_lastfrag, and fix of this corner case may slow down of ordinaries scenarios, so this patch makes behavior of "truncate" operations similar to what other UFS implementations do. Signed-off-by: Evgeniy Dushistov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/ufs/truncate.c | 73 +++++++++++++++-------------------------------- 1 file changed, 23 insertions(+), 50 deletions(-) diff --git a/fs/ufs/truncate.c b/fs/ufs/truncate.c index c9b55872079b..ea11d04c41a0 100644 --- a/fs/ufs/truncate.c +++ b/fs/ufs/truncate.c @@ -375,17 +375,15 @@ static int ufs_alloc_lastblock(struct inode *inode) int err = 0; struct address_space *mapping = inode->i_mapping; struct ufs_sb_private_info *uspi = UFS_SB(inode->i_sb)->s_uspi; - struct ufs_inode_info *ufsi = UFS_I(inode); unsigned lastfrag, i, end; struct page *lastpage; struct buffer_head *bh; lastfrag = (i_size_read(inode) + uspi->s_fsize - 1) >> uspi->s_fshift; - if (!lastfrag) { - ufsi->i_lastfrag = 0; + if (!lastfrag) goto out; - } + lastfrag--; lastpage = ufs_get_locked_page(mapping, lastfrag >> @@ -400,25 +398,25 @@ static int ufs_alloc_lastblock(struct inode *inode) for (i = 0; i < end; ++i) bh = bh->b_this_page; - if (!buffer_mapped(bh)) { - err = ufs_getfrag_block(inode, lastfrag, bh, 1); - if (unlikely(err)) - goto out_unlock; + err = ufs_getfrag_block(inode, lastfrag, bh, 1); - if (buffer_new(bh)) { - clear_buffer_new(bh); - unmap_underlying_metadata(bh->b_bdev, - bh->b_blocknr); - /* - * we do not zeroize fragment, because of - * if it maped to hole, it already contains zeroes - */ - set_buffer_uptodate(bh); - mark_buffer_dirty(bh); - set_page_dirty(lastpage); - } + if (unlikely(err)) + goto out_unlock; + + if (buffer_new(bh)) { + clear_buffer_new(bh); + unmap_underlying_metadata(bh->b_bdev, + bh->b_blocknr); + /* + * we do not zeroize fragment, because of + * if it maped to hole, it already contains zeroes + */ + set_buffer_uptodate(bh); + mark_buffer_dirty(bh); + set_page_dirty(lastpage); } + out_unlock: ufs_put_locked_page(lastpage); out: @@ -440,23 +438,11 @@ int ufs_truncate(struct inode *inode, loff_t old_i_size) if (IS_APPEND(inode) || IS_IMMUTABLE(inode)) return -EPERM; - if (inode->i_size > old_i_size) { - /* - * if we expand file we should care about - * allocation of block for last byte first of all - */ - err = ufs_alloc_lastblock(inode); + err = ufs_alloc_lastblock(inode); - if (err) { - i_size_write(inode, old_i_size); - goto out; - } - /* - * go away, because of we expand file, and we do not - * need free blocks, and zeroizes page - */ - lock_kernel(); - goto almost_end; + if (err) { + i_size_write(inode, old_i_size); + goto out; } block_truncate_page(inode->i_mapping, inode->i_size, ufs_getfrag_block); @@ -477,21 +463,8 @@ int ufs_truncate(struct inode *inode, loff_t old_i_size) yield(); } - if (inode->i_size < old_i_size) { - /* - * now we should have enough space - * to allocate block for last byte - */ - err = ufs_alloc_lastblock(inode); - if (err) - /* - * looks like all the same - we have no space, - * but we truncate file already - */ - inode->i_size = (ufsi->i_lastfrag - 1) * uspi->s_fsize; - } -almost_end: inode->i_mtime = inode->i_ctime = CURRENT_TIME_SEC; + ufsi->i_lastfrag = DIRECT_FRAGMENT; unlock_kernel(); mark_inode_dirty(inode); out: From 4edb9a143e31d2e191c199262226e1a5923ff8f7 Mon Sep 17 00:00:00 2001 From: Yingchao Zhou Date: Sun, 27 Aug 2006 01:23:46 -0700 Subject: [PATCH 366/488] [PATCH] Remove redundant up() in stop_machine() An up() is called in kernel/stop_machine.c on failure, and also in the caller (unconditionally). Signed-off-by: Zhou Yingchao Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/stop_machine.c | 1 - 1 file changed, 1 deletion(-) diff --git a/kernel/stop_machine.c b/kernel/stop_machine.c index dcfb5d731466..51cacd111dbd 100644 --- a/kernel/stop_machine.c +++ b/kernel/stop_machine.c @@ -111,7 +111,6 @@ static int stop_machine(void) /* If some failed, kill them all. */ if (ret < 0) { stopmachine_set_state(STOPMACHINE_EXIT); - up(&stopmachine_mutex); return ret; } From e88d78f6ba50d773096e26ca3f5c2464853c682d Mon Sep 17 00:00:00 2001 From: Tom Zanussi Date: Sun, 27 Aug 2006 01:23:47 -0700 Subject: [PATCH 367/488] [PATCH] Documentation update for relay interface Here's updated documentation for the relay interface, rewritten to match the relayfs->relay changes. It also moves relayfs.txt to relay.txt in the process. It includes the changes to relayfs.txt previously posted by Randy Dunlap, thanks for those. The relay-apps examples have also been updated to match, and can be found on the sourceforge relayfs website. Signed-off-by: Tom Zanussi Cc: "Randy.Dunlap" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/filesystems/00-INDEX | 4 +- Documentation/filesystems/relay.txt | 479 ++++++++++++++++++++++++++ Documentation/filesystems/relayfs.txt | 442 ------------------------ 3 files changed, 481 insertions(+), 444 deletions(-) create mode 100644 Documentation/filesystems/relay.txt delete mode 100644 Documentation/filesystems/relayfs.txt diff --git a/Documentation/filesystems/00-INDEX b/Documentation/filesystems/00-INDEX index 66fdc0744fe0..16dec61d7671 100644 --- a/Documentation/filesystems/00-INDEX +++ b/Documentation/filesystems/00-INDEX @@ -62,8 +62,8 @@ ramfs-rootfs-initramfs.txt - info on the 'in memory' filesystems ramfs, rootfs and initramfs. reiser4.txt - info on the Reiser4 filesystem based on dancing tree algorithms. -relayfs.txt - - info on relayfs, for efficient streaming from kernel to user space. +relay.txt + - info on relay, for efficient streaming from kernel to user space. romfs.txt - description of the ROMFS filesystem. smbfs.txt diff --git a/Documentation/filesystems/relay.txt b/Documentation/filesystems/relay.txt new file mode 100644 index 000000000000..d6788dae0349 --- /dev/null +++ b/Documentation/filesystems/relay.txt @@ -0,0 +1,479 @@ +relay interface (formerly relayfs) +================================== + +The relay interface provides a means for kernel applications to +efficiently log and transfer large quantities of data from the kernel +to userspace via user-defined 'relay channels'. + +A 'relay channel' is a kernel->user data relay mechanism implemented +as a set of per-cpu kernel buffers ('channel buffers'), each +represented as a regular file ('relay file') in user space. Kernel +clients write into the channel buffers using efficient write +functions; these automatically log into the current cpu's channel +buffer. User space applications mmap() or read() from the relay files +and retrieve the data as it becomes available. The relay files +themselves are files created in a host filesystem, e.g. debugfs, and +are associated with the channel buffers using the API described below. + +The format of the data logged into the channel buffers is completely +up to the kernel client; the relay interface does however provide +hooks which allow kernel clients to impose some structure on the +buffer data. The relay interface doesn't implement any form of data +filtering - this also is left to the kernel client. The purpose is to +keep things as simple as possible. + +This document provides an overview of the relay interface API. The +details of the function parameters are documented along with the +functions in the relay interface code - please see that for details. + +Semantics +========= + +Each relay channel has one buffer per CPU, each buffer has one or more +sub-buffers. Messages are written to the first sub-buffer until it is +too full to contain a new message, in which case it it is written to +the next (if available). Messages are never split across sub-buffers. +At this point, userspace can be notified so it empties the first +sub-buffer, while the kernel continues writing to the next. + +When notified that a sub-buffer is full, the kernel knows how many +bytes of it are padding i.e. unused space occurring because a complete +message couldn't fit into a sub-buffer. Userspace can use this +knowledge to copy only valid data. + +After copying it, userspace can notify the kernel that a sub-buffer +has been consumed. + +A relay channel can operate in a mode where it will overwrite data not +yet collected by userspace, and not wait for it to be consumed. + +The relay channel itself does not provide for communication of such +data between userspace and kernel, allowing the kernel side to remain +simple and not impose a single interface on userspace. It does +provide a set of examples and a separate helper though, described +below. + +The read() interface both removes padding and internally consumes the +read sub-buffers; thus in cases where read(2) is being used to drain +the channel buffers, special-purpose communication between kernel and +user isn't necessary for basic operation. + +One of the major goals of the relay interface is to provide a low +overhead mechanism for conveying kernel data to userspace. While the +read() interface is easy to use, it's not as efficient as the mmap() +approach; the example code attempts to make the tradeoff between the +two approaches as small as possible. + +klog and relay-apps example code +================================ + +The relay interface itself is ready to use, but to make things easier, +a couple simple utility functions and a set of examples are provided. + +The relay-apps example tarball, available on the relay sourceforge +site, contains a set of self-contained examples, each consisting of a +pair of .c files containing boilerplate code for each of the user and +kernel sides of a relay application. When combined these two sets of +boilerplate code provide glue to easily stream data to disk, without +having to bother with mundane housekeeping chores. + +The 'klog debugging functions' patch (klog.patch in the relay-apps +tarball) provides a couple of high-level logging functions to the +kernel which allow writing formatted text or raw data to a channel, +regardless of whether a channel to write into exists or not, or even +whether the relay interface is compiled into the kernel or not. These +functions allow you to put unconditional 'trace' statements anywhere +in the kernel or kernel modules; only when there is a 'klog handler' +registered will data actually be logged (see the klog and kleak +examples for details). + +It is of course possible to use the relay interface from scratch, +i.e. without using any of the relay-apps example code or klog, but +you'll have to implement communication between userspace and kernel, +allowing both to convey the state of buffers (full, empty, amount of +padding). The read() interface both removes padding and internally +consumes the read sub-buffers; thus in cases where read(2) is being +used to drain the channel buffers, special-purpose communication +between kernel and user isn't necessary for basic operation. Things +such as buffer-full conditions would still need to be communicated via +some channel though. + +klog and the relay-apps examples can be found in the relay-apps +tarball on http://relayfs.sourceforge.net + +The relay interface user space API +================================== + +The relay interface implements basic file operations for user space +access to relay channel buffer data. Here are the file operations +that are available and some comments regarding their behavior: + +open() enables user to open an _existing_ channel buffer. + +mmap() results in channel buffer being mapped into the caller's + memory space. Note that you can't do a partial mmap - you + must map the entire file, which is NRBUF * SUBBUFSIZE. + +read() read the contents of a channel buffer. The bytes read are + 'consumed' by the reader, i.e. they won't be available + again to subsequent reads. If the channel is being used + in no-overwrite mode (the default), it can be read at any + time even if there's an active kernel writer. If the + channel is being used in overwrite mode and there are + active channel writers, results may be unpredictable - + users should make sure that all logging to the channel has + ended before using read() with overwrite mode. Sub-buffer + padding is automatically removed and will not be seen by + the reader. + +sendfile() transfer data from a channel buffer to an output file + descriptor. Sub-buffer padding is automatically removed + and will not be seen by the reader. + +poll() POLLIN/POLLRDNORM/POLLERR supported. User applications are + notified when sub-buffer boundaries are crossed. + +close() decrements the channel buffer's refcount. When the refcount + reaches 0, i.e. when no process or kernel client has the + buffer open, the channel buffer is freed. + +In order for a user application to make use of relay files, the +host filesystem must be mounted. For example, + + mount -t debugfs debugfs /debug + +NOTE: the host filesystem doesn't need to be mounted for kernel + clients to create or use channels - it only needs to be + mounted when user space applications need access to the buffer + data. + + +The relay interface kernel API +============================== + +Here's a summary of the API the relay interface provides to in-kernel clients: + +TBD(curr. line MT:/API/) + channel management functions: + + relay_open(base_filename, parent, subbuf_size, n_subbufs, + callbacks) + relay_close(chan) + relay_flush(chan) + relay_reset(chan) + + channel management typically called on instigation of userspace: + + relay_subbufs_consumed(chan, cpu, subbufs_consumed) + + write functions: + + relay_write(chan, data, length) + __relay_write(chan, data, length) + relay_reserve(chan, length) + + callbacks: + + subbuf_start(buf, subbuf, prev_subbuf, prev_padding) + buf_mapped(buf, filp) + buf_unmapped(buf, filp) + create_buf_file(filename, parent, mode, buf, is_global) + remove_buf_file(dentry) + + helper functions: + + relay_buf_full(buf) + subbuf_start_reserve(buf, length) + + +Creating a channel +------------------ + +relay_open() is used to create a channel, along with its per-cpu +channel buffers. Each channel buffer will have an associated file +created for it in the host filesystem, which can be and mmapped or +read from in user space. The files are named basename0...basenameN-1 +where N is the number of online cpus, and by default will be created +in the root of the filesystem (if the parent param is NULL). If you +want a directory structure to contain your relay files, you should +create it using the host filesystem's directory creation function, +e.g. debugfs_create_dir(), and pass the parent directory to +relay_open(). Users are responsible for cleaning up any directory +structure they create, when the channel is closed - again the host +filesystem's directory removal functions should be used for that, +e.g. debugfs_remove(). + +In order for a channel to be created and the host filesystem's files +associated with its channel buffers, the user must provide definitions +for two callback functions, create_buf_file() and remove_buf_file(). +create_buf_file() is called once for each per-cpu buffer from +relay_open() and allows the user to create the file which will be used +to represent the corresponding channel buffer. The callback should +return the dentry of the file created to represent the channel buffer. +remove_buf_file() must also be defined; it's responsible for deleting +the file(s) created in create_buf_file() and is called during +relay_close(). + +Here are some typical definitions for these callbacks, in this case +using debugfs: + +/* + * create_buf_file() callback. Creates relay file in debugfs. + */ +static struct dentry *create_buf_file_handler(const char *filename, + struct dentry *parent, + int mode, + struct rchan_buf *buf, + int *is_global) +{ + return debugfs_create_file(filename, mode, parent, buf, + &relay_file_operations); +} + +/* + * remove_buf_file() callback. Removes relay file from debugfs. + */ +static int remove_buf_file_handler(struct dentry *dentry) +{ + debugfs_remove(dentry); + + return 0; +} + +/* + * relay interface callbacks + */ +static struct rchan_callbacks relay_callbacks = +{ + .create_buf_file = create_buf_file_handler, + .remove_buf_file = remove_buf_file_handler, +}; + +And an example relay_open() invocation using them: + + chan = relay_open("cpu", NULL, SUBBUF_SIZE, N_SUBBUFS, &relay_callbacks); + +If the create_buf_file() callback fails, or isn't defined, channel +creation and thus relay_open() will fail. + +The total size of each per-cpu buffer is calculated by multiplying the +number of sub-buffers by the sub-buffer size passed into relay_open(). +The idea behind sub-buffers is that they're basically an extension of +double-buffering to N buffers, and they also allow applications to +easily implement random-access-on-buffer-boundary schemes, which can +be important for some high-volume applications. The number and size +of sub-buffers is completely dependent on the application and even for +the same application, different conditions will warrant different +values for these parameters at different times. Typically, the right +values to use are best decided after some experimentation; in general, +though, it's safe to assume that having only 1 sub-buffer is a bad +idea - you're guaranteed to either overwrite data or lose events +depending on the channel mode being used. + +The create_buf_file() implementation can also be defined in such a way +as to allow the creation of a single 'global' buffer instead of the +default per-cpu set. This can be useful for applications interested +mainly in seeing the relative ordering of system-wide events without +the need to bother with saving explicit timestamps for the purpose of +merging/sorting per-cpu files in a postprocessing step. + +To have relay_open() create a global buffer, the create_buf_file() +implementation should set the value of the is_global outparam to a +non-zero value in addition to creating the file that will be used to +represent the single buffer. In the case of a global buffer, +create_buf_file() and remove_buf_file() will be called only once. The +normal channel-writing functions, e.g. relay_write(), can still be +used - writes from any cpu will transparently end up in the global +buffer - but since it is a global buffer, callers should make sure +they use the proper locking for such a buffer, either by wrapping +writes in a spinlock, or by copying a write function from relay.h and +creating a local version that internally does the proper locking. + +Channel 'modes' +--------------- + +relay channels can be used in either of two modes - 'overwrite' or +'no-overwrite'. The mode is entirely determined by the implementation +of the subbuf_start() callback, as described below. The default if no +subbuf_start() callback is defined is 'no-overwrite' mode. If the +default mode suits your needs, and you plan to use the read() +interface to retrieve channel data, you can ignore the details of this +section, as it pertains mainly to mmap() implementations. + +In 'overwrite' mode, also known as 'flight recorder' mode, writes +continuously cycle around the buffer and will never fail, but will +unconditionally overwrite old data regardless of whether it's actually +been consumed. In no-overwrite mode, writes will fail, i.e. data will +be lost, if the number of unconsumed sub-buffers equals the total +number of sub-buffers in the channel. It should be clear that if +there is no consumer or if the consumer can't consume sub-buffers fast +enough, data will be lost in either case; the only difference is +whether data is lost from the beginning or the end of a buffer. + +As explained above, a relay channel is made of up one or more +per-cpu channel buffers, each implemented as a circular buffer +subdivided into one or more sub-buffers. Messages are written into +the current sub-buffer of the channel's current per-cpu buffer via the +write functions described below. Whenever a message can't fit into +the current sub-buffer, because there's no room left for it, the +client is notified via the subbuf_start() callback that a switch to a +new sub-buffer is about to occur. The client uses this callback to 1) +initialize the next sub-buffer if appropriate 2) finalize the previous +sub-buffer if appropriate and 3) return a boolean value indicating +whether or not to actually move on to the next sub-buffer. + +To implement 'no-overwrite' mode, the userspace client would provide +an implementation of the subbuf_start() callback something like the +following: + +static int subbuf_start(struct rchan_buf *buf, + void *subbuf, + void *prev_subbuf, + unsigned int prev_padding) +{ + if (prev_subbuf) + *((unsigned *)prev_subbuf) = prev_padding; + + if (relay_buf_full(buf)) + return 0; + + subbuf_start_reserve(buf, sizeof(unsigned int)); + + return 1; +} + +If the current buffer is full, i.e. all sub-buffers remain unconsumed, +the callback returns 0 to indicate that the buffer switch should not +occur yet, i.e. until the consumer has had a chance to read the +current set of ready sub-buffers. For the relay_buf_full() function +to make sense, the consumer is reponsible for notifying the relay +interface when sub-buffers have been consumed via +relay_subbufs_consumed(). Any subsequent attempts to write into the +buffer will again invoke the subbuf_start() callback with the same +parameters; only when the consumer has consumed one or more of the +ready sub-buffers will relay_buf_full() return 0, in which case the +buffer switch can continue. + +The implementation of the subbuf_start() callback for 'overwrite' mode +would be very similar: + +static int subbuf_start(struct rchan_buf *buf, + void *subbuf, + void *prev_subbuf, + unsigned int prev_padding) +{ + if (prev_subbuf) + *((unsigned *)prev_subbuf) = prev_padding; + + subbuf_start_reserve(buf, sizeof(unsigned int)); + + return 1; +} + +In this case, the relay_buf_full() check is meaningless and the +callback always returns 1, causing the buffer switch to occur +unconditionally. It's also meaningless for the client to use the +relay_subbufs_consumed() function in this mode, as it's never +consulted. + +The default subbuf_start() implementation, used if the client doesn't +define any callbacks, or doesn't define the subbuf_start() callback, +implements the simplest possible 'no-overwrite' mode, i.e. it does +nothing but return 0. + +Header information can be reserved at the beginning of each sub-buffer +by calling the subbuf_start_reserve() helper function from within the +subbuf_start() callback. This reserved area can be used to store +whatever information the client wants. In the example above, room is +reserved in each sub-buffer to store the padding count for that +sub-buffer. This is filled in for the previous sub-buffer in the +subbuf_start() implementation; the padding value for the previous +sub-buffer is passed into the subbuf_start() callback along with a +pointer to the previous sub-buffer, since the padding value isn't +known until a sub-buffer is filled. The subbuf_start() callback is +also called for the first sub-buffer when the channel is opened, to +give the client a chance to reserve space in it. In this case the +previous sub-buffer pointer passed into the callback will be NULL, so +the client should check the value of the prev_subbuf pointer before +writing into the previous sub-buffer. + +Writing to a channel +-------------------- + +Kernel clients write data into the current cpu's channel buffer using +relay_write() or __relay_write(). relay_write() is the main logging +function - it uses local_irqsave() to protect the buffer and should be +used if you might be logging from interrupt context. If you know +you'll never be logging from interrupt context, you can use +__relay_write(), which only disables preemption. These functions +don't return a value, so you can't determine whether or not they +failed - the assumption is that you wouldn't want to check a return +value in the fast logging path anyway, and that they'll always succeed +unless the buffer is full and no-overwrite mode is being used, in +which case you can detect a failed write in the subbuf_start() +callback by calling the relay_buf_full() helper function. + +relay_reserve() is used to reserve a slot in a channel buffer which +can be written to later. This would typically be used in applications +that need to write directly into a channel buffer without having to +stage data in a temporary buffer beforehand. Because the actual write +may not happen immediately after the slot is reserved, applications +using relay_reserve() can keep a count of the number of bytes actually +written, either in space reserved in the sub-buffers themselves or as +a separate array. See the 'reserve' example in the relay-apps tarball +at http://relayfs.sourceforge.net for an example of how this can be +done. Because the write is under control of the client and is +separated from the reserve, relay_reserve() doesn't protect the buffer +at all - it's up to the client to provide the appropriate +synchronization when using relay_reserve(). + +Closing a channel +----------------- + +The client calls relay_close() when it's finished using the channel. +The channel and its associated buffers are destroyed when there are no +longer any references to any of the channel buffers. relay_flush() +forces a sub-buffer switch on all the channel buffers, and can be used +to finalize and process the last sub-buffers before the channel is +closed. + +Misc +---- + +Some applications may want to keep a channel around and re-use it +rather than open and close a new channel for each use. relay_reset() +can be used for this purpose - it resets a channel to its initial +state without reallocating channel buffer memory or destroying +existing mappings. It should however only be called when it's safe to +do so, i.e. when the channel isn't currently being written to. + +Finally, there are a couple of utility callbacks that can be used for +different purposes. buf_mapped() is called whenever a channel buffer +is mmapped from user space and buf_unmapped() is called when it's +unmapped. The client can use this notification to trigger actions +within the kernel application, such as enabling/disabling logging to +the channel. + + +Resources +========= + +For news, example code, mailing list, etc. see the relay interface homepage: + + http://relayfs.sourceforge.net + + +Credits +======= + +The ideas and specs for the relay interface came about as a result of +discussions on tracing involving the following: + +Michel Dagenais +Richard Moore +Bob Wisniewski +Karim Yaghmour +Tom Zanussi + +Also thanks to Hubertus Franke for a lot of useful suggestions and bug +reports. diff --git a/Documentation/filesystems/relayfs.txt b/Documentation/filesystems/relayfs.txt deleted file mode 100644 index 5832377b7340..000000000000 --- a/Documentation/filesystems/relayfs.txt +++ /dev/null @@ -1,442 +0,0 @@ - -relayfs - a high-speed data relay filesystem -============================================ - -relayfs is a filesystem designed to provide an efficient mechanism for -tools and facilities to relay large and potentially sustained streams -of data from kernel space to user space. - -The main abstraction of relayfs is the 'channel'. A channel consists -of a set of per-cpu kernel buffers each represented by a file in the -relayfs filesystem. Kernel clients write into a channel using -efficient write functions which automatically log to the current cpu's -channel buffer. User space applications mmap() the per-cpu files and -retrieve the data as it becomes available. - -The format of the data logged into the channel buffers is completely -up to the relayfs client; relayfs does however provide hooks which -allow clients to impose some structure on the buffer data. Nor does -relayfs implement any form of data filtering - this also is left to -the client. The purpose is to keep relayfs as simple as possible. - -This document provides an overview of the relayfs API. The details of -the function parameters are documented along with the functions in the -filesystem code - please see that for details. - -Semantics -========= - -Each relayfs channel has one buffer per CPU, each buffer has one or -more sub-buffers. Messages are written to the first sub-buffer until -it is too full to contain a new message, in which case it it is -written to the next (if available). Messages are never split across -sub-buffers. At this point, userspace can be notified so it empties -the first sub-buffer, while the kernel continues writing to the next. - -When notified that a sub-buffer is full, the kernel knows how many -bytes of it are padding i.e. unused. Userspace can use this knowledge -to copy only valid data. - -After copying it, userspace can notify the kernel that a sub-buffer -has been consumed. - -relayfs can operate in a mode where it will overwrite data not yet -collected by userspace, and not wait for it to consume it. - -relayfs itself does not provide for communication of such data between -userspace and kernel, allowing the kernel side to remain simple and -not impose a single interface on userspace. It does provide a set of -examples and a separate helper though, described below. - -klog and relay-apps example code -================================ - -relayfs itself is ready to use, but to make things easier, a couple -simple utility functions and a set of examples are provided. - -The relay-apps example tarball, available on the relayfs sourceforge -site, contains a set of self-contained examples, each consisting of a -pair of .c files containing boilerplate code for each of the user and -kernel sides of a relayfs application; combined these two sets of -boilerplate code provide glue to easily stream data to disk, without -having to bother with mundane housekeeping chores. - -The 'klog debugging functions' patch (klog.patch in the relay-apps -tarball) provides a couple of high-level logging functions to the -kernel which allow writing formatted text or raw data to a channel, -regardless of whether a channel to write into exists or not, or -whether relayfs is compiled into the kernel or is configured as a -module. These functions allow you to put unconditional 'trace' -statements anywhere in the kernel or kernel modules; only when there -is a 'klog handler' registered will data actually be logged (see the -klog and kleak examples for details). - -It is of course possible to use relayfs from scratch i.e. without -using any of the relay-apps example code or klog, but you'll have to -implement communication between userspace and kernel, allowing both to -convey the state of buffers (full, empty, amount of padding). - -klog and the relay-apps examples can be found in the relay-apps -tarball on http://relayfs.sourceforge.net - - -The relayfs user space API -========================== - -relayfs implements basic file operations for user space access to -relayfs channel buffer data. Here are the file operations that are -available and some comments regarding their behavior: - -open() enables user to open an _existing_ buffer. - -mmap() results in channel buffer being mapped into the caller's - memory space. Note that you can't do a partial mmap - you must - map the entire file, which is NRBUF * SUBBUFSIZE. - -read() read the contents of a channel buffer. The bytes read are - 'consumed' by the reader i.e. they won't be available again - to subsequent reads. If the channel is being used in - no-overwrite mode (the default), it can be read at any time - even if there's an active kernel writer. If the channel is - being used in overwrite mode and there are active channel - writers, results may be unpredictable - users should make - sure that all logging to the channel has ended before using - read() with overwrite mode. - -poll() POLLIN/POLLRDNORM/POLLERR supported. User applications are - notified when sub-buffer boundaries are crossed. - -close() decrements the channel buffer's refcount. When the refcount - reaches 0 i.e. when no process or kernel client has the buffer - open, the channel buffer is freed. - - -In order for a user application to make use of relayfs files, the -relayfs filesystem must be mounted. For example, - - mount -t relayfs relayfs /mnt/relay - -NOTE: relayfs doesn't need to be mounted for kernel clients to create - or use channels - it only needs to be mounted when user space - applications need access to the buffer data. - - -The relayfs kernel API -====================== - -Here's a summary of the API relayfs provides to in-kernel clients: - - - channel management functions: - - relay_open(base_filename, parent, subbuf_size, n_subbufs, - callbacks) - relay_close(chan) - relay_flush(chan) - relay_reset(chan) - relayfs_create_dir(name, parent) - relayfs_remove_dir(dentry) - relayfs_create_file(name, parent, mode, fops, data) - relayfs_remove_file(dentry) - - channel management typically called on instigation of userspace: - - relay_subbufs_consumed(chan, cpu, subbufs_consumed) - - write functions: - - relay_write(chan, data, length) - __relay_write(chan, data, length) - relay_reserve(chan, length) - - callbacks: - - subbuf_start(buf, subbuf, prev_subbuf, prev_padding) - buf_mapped(buf, filp) - buf_unmapped(buf, filp) - create_buf_file(filename, parent, mode, buf, is_global) - remove_buf_file(dentry) - - helper functions: - - relay_buf_full(buf) - subbuf_start_reserve(buf, length) - - -Creating a channel ------------------- - -relay_open() is used to create a channel, along with its per-cpu -channel buffers. Each channel buffer will have an associated file -created for it in the relayfs filesystem, which can be opened and -mmapped from user space if desired. The files are named -basename0...basenameN-1 where N is the number of online cpus, and by -default will be created in the root of the filesystem. If you want a -directory structure to contain your relayfs files, you can create it -with relayfs_create_dir() and pass the parent directory to -relay_open(). Clients are responsible for cleaning up any directory -structure they create when the channel is closed - use -relayfs_remove_dir() for that. - -The total size of each per-cpu buffer is calculated by multiplying the -number of sub-buffers by the sub-buffer size passed into relay_open(). -The idea behind sub-buffers is that they're basically an extension of -double-buffering to N buffers, and they also allow applications to -easily implement random-access-on-buffer-boundary schemes, which can -be important for some high-volume applications. The number and size -of sub-buffers is completely dependent on the application and even for -the same application, different conditions will warrant different -values for these parameters at different times. Typically, the right -values to use are best decided after some experimentation; in general, -though, it's safe to assume that having only 1 sub-buffer is a bad -idea - you're guaranteed to either overwrite data or lose events -depending on the channel mode being used. - -Channel 'modes' ---------------- - -relayfs channels can be used in either of two modes - 'overwrite' or -'no-overwrite'. The mode is entirely determined by the implementation -of the subbuf_start() callback, as described below. In 'overwrite' -mode, also known as 'flight recorder' mode, writes continuously cycle -around the buffer and will never fail, but will unconditionally -overwrite old data regardless of whether it's actually been consumed. -In no-overwrite mode, writes will fail i.e. data will be lost, if the -number of unconsumed sub-buffers equals the total number of -sub-buffers in the channel. It should be clear that if there is no -consumer or if the consumer can't consume sub-buffers fast enought, -data will be lost in either case; the only difference is whether data -is lost from the beginning or the end of a buffer. - -As explained above, a relayfs channel is made of up one or more -per-cpu channel buffers, each implemented as a circular buffer -subdivided into one or more sub-buffers. Messages are written into -the current sub-buffer of the channel's current per-cpu buffer via the -write functions described below. Whenever a message can't fit into -the current sub-buffer, because there's no room left for it, the -client is notified via the subbuf_start() callback that a switch to a -new sub-buffer is about to occur. The client uses this callback to 1) -initialize the next sub-buffer if appropriate 2) finalize the previous -sub-buffer if appropriate and 3) return a boolean value indicating -whether or not to actually go ahead with the sub-buffer switch. - -To implement 'no-overwrite' mode, the userspace client would provide -an implementation of the subbuf_start() callback something like the -following: - -static int subbuf_start(struct rchan_buf *buf, - void *subbuf, - void *prev_subbuf, - unsigned int prev_padding) -{ - if (prev_subbuf) - *((unsigned *)prev_subbuf) = prev_padding; - - if (relay_buf_full(buf)) - return 0; - - subbuf_start_reserve(buf, sizeof(unsigned int)); - - return 1; -} - -If the current buffer is full i.e. all sub-buffers remain unconsumed, -the callback returns 0 to indicate that the buffer switch should not -occur yet i.e. until the consumer has had a chance to read the current -set of ready sub-buffers. For the relay_buf_full() function to make -sense, the consumer is reponsible for notifying relayfs when -sub-buffers have been consumed via relay_subbufs_consumed(). Any -subsequent attempts to write into the buffer will again invoke the -subbuf_start() callback with the same parameters; only when the -consumer has consumed one or more of the ready sub-buffers will -relay_buf_full() return 0, in which case the buffer switch can -continue. - -The implementation of the subbuf_start() callback for 'overwrite' mode -would be very similar: - -static int subbuf_start(struct rchan_buf *buf, - void *subbuf, - void *prev_subbuf, - unsigned int prev_padding) -{ - if (prev_subbuf) - *((unsigned *)prev_subbuf) = prev_padding; - - subbuf_start_reserve(buf, sizeof(unsigned int)); - - return 1; -} - -In this case, the relay_buf_full() check is meaningless and the -callback always returns 1, causing the buffer switch to occur -unconditionally. It's also meaningless for the client to use the -relay_subbufs_consumed() function in this mode, as it's never -consulted. - -The default subbuf_start() implementation, used if the client doesn't -define any callbacks, or doesn't define the subbuf_start() callback, -implements the simplest possible 'no-overwrite' mode i.e. it does -nothing but return 0. - -Header information can be reserved at the beginning of each sub-buffer -by calling the subbuf_start_reserve() helper function from within the -subbuf_start() callback. This reserved area can be used to store -whatever information the client wants. In the example above, room is -reserved in each sub-buffer to store the padding count for that -sub-buffer. This is filled in for the previous sub-buffer in the -subbuf_start() implementation; the padding value for the previous -sub-buffer is passed into the subbuf_start() callback along with a -pointer to the previous sub-buffer, since the padding value isn't -known until a sub-buffer is filled. The subbuf_start() callback is -also called for the first sub-buffer when the channel is opened, to -give the client a chance to reserve space in it. In this case the -previous sub-buffer pointer passed into the callback will be NULL, so -the client should check the value of the prev_subbuf pointer before -writing into the previous sub-buffer. - -Writing to a channel --------------------- - -kernel clients write data into the current cpu's channel buffer using -relay_write() or __relay_write(). relay_write() is the main logging -function - it uses local_irqsave() to protect the buffer and should be -used if you might be logging from interrupt context. If you know -you'll never be logging from interrupt context, you can use -__relay_write(), which only disables preemption. These functions -don't return a value, so you can't determine whether or not they -failed - the assumption is that you wouldn't want to check a return -value in the fast logging path anyway, and that they'll always succeed -unless the buffer is full and no-overwrite mode is being used, in -which case you can detect a failed write in the subbuf_start() -callback by calling the relay_buf_full() helper function. - -relay_reserve() is used to reserve a slot in a channel buffer which -can be written to later. This would typically be used in applications -that need to write directly into a channel buffer without having to -stage data in a temporary buffer beforehand. Because the actual write -may not happen immediately after the slot is reserved, applications -using relay_reserve() can keep a count of the number of bytes actually -written, either in space reserved in the sub-buffers themselves or as -a separate array. See the 'reserve' example in the relay-apps tarball -at http://relayfs.sourceforge.net for an example of how this can be -done. Because the write is under control of the client and is -separated from the reserve, relay_reserve() doesn't protect the buffer -at all - it's up to the client to provide the appropriate -synchronization when using relay_reserve(). - -Closing a channel ------------------ - -The client calls relay_close() when it's finished using the channel. -The channel and its associated buffers are destroyed when there are no -longer any references to any of the channel buffers. relay_flush() -forces a sub-buffer switch on all the channel buffers, and can be used -to finalize and process the last sub-buffers before the channel is -closed. - -Creating non-relay files ------------------------- - -relay_open() automatically creates files in the relayfs filesystem to -represent the per-cpu kernel buffers; it's often useful for -applications to be able to create their own files alongside the relay -files in the relayfs filesystem as well e.g. 'control' files much like -those created in /proc or debugfs for similar purposes, used to -communicate control information between the kernel and user sides of a -relayfs application. For this purpose the relayfs_create_file() and -relayfs_remove_file() API functions exist. For relayfs_create_file(), -the caller passes in a set of user-defined file operations to be used -for the file and an optional void * to a user-specified data item, -which will be accessible via inode->u.generic_ip (see the relay-apps -tarball for examples). The file_operations are a required parameter -to relayfs_create_file() and thus the semantics of these files are -completely defined by the caller. - -See the relay-apps tarball at http://relayfs.sourceforge.net for -examples of how these non-relay files are meant to be used. - -Creating relay files in other filesystems ------------------------------------------ - -By default of course, relay_open() creates relay files in the relayfs -filesystem. Because relay_file_operations is exported, however, it's -also possible to create and use relay files in other pseudo-filesytems -such as debugfs. - -For this purpose, two callback functions are provided, -create_buf_file() and remove_buf_file(). create_buf_file() is called -once for each per-cpu buffer from relay_open() to allow the client to -create a file to be used to represent the corresponding buffer; if -this callback is not defined, the default implementation will create -and return a file in the relayfs filesystem to represent the buffer. -The callback should return the dentry of the file created to represent -the relay buffer. Note that the parent directory passed to -relay_open() (and passed along to the callback), if specified, must -exist in the same filesystem the new relay file is created in. If -create_buf_file() is defined, remove_buf_file() must also be defined; -it's responsible for deleting the file(s) created in create_buf_file() -and is called during relay_close(). - -The create_buf_file() implementation can also be defined in such a way -as to allow the creation of a single 'global' buffer instead of the -default per-cpu set. This can be useful for applications interested -mainly in seeing the relative ordering of system-wide events without -the need to bother with saving explicit timestamps for the purpose of -merging/sorting per-cpu files in a postprocessing step. - -To have relay_open() create a global buffer, the create_buf_file() -implementation should set the value of the is_global outparam to a -non-zero value in addition to creating the file that will be used to -represent the single buffer. In the case of a global buffer, -create_buf_file() and remove_buf_file() will be called only once. The -normal channel-writing functions e.g. relay_write() can still be used -- writes from any cpu will transparently end up in the global buffer - -but since it is a global buffer, callers should make sure they use the -proper locking for such a buffer, either by wrapping writes in a -spinlock, or by copying a write function from relayfs_fs.h and -creating a local version that internally does the proper locking. - -See the 'exported-relayfile' examples in the relay-apps tarball for -examples of creating and using relay files in debugfs. - -Misc ----- - -Some applications may want to keep a channel around and re-use it -rather than open and close a new channel for each use. relay_reset() -can be used for this purpose - it resets a channel to its initial -state without reallocating channel buffer memory or destroying -existing mappings. It should however only be called when it's safe to -do so i.e. when the channel isn't currently being written to. - -Finally, there are a couple of utility callbacks that can be used for -different purposes. buf_mapped() is called whenever a channel buffer -is mmapped from user space and buf_unmapped() is called when it's -unmapped. The client can use this notification to trigger actions -within the kernel application, such as enabling/disabling logging to -the channel. - - -Resources -========= - -For news, example code, mailing list, etc. see the relayfs homepage: - - http://relayfs.sourceforge.net - - -Credits -======= - -The ideas and specs for relayfs came about as a result of discussions -on tracing involving the following: - -Michel Dagenais -Richard Moore -Bob Wisniewski -Karim Yaghmour -Tom Zanussi - -Also thanks to Hubertus Franke for a lot of useful suggestions and bug -reports. From 45f17e0c2ae05c133a348452690de0e5fa863293 Mon Sep 17 00:00:00 2001 From: Masoud Asgharifard Sharbiani Date: Sun, 27 Aug 2006 01:23:48 -0700 Subject: [PATCH 368/488] [PATCH] eventpoll.c compile fix Fix two compile failures in eventpoll.c code which would happen if DEBUG_EPOLL is bigger than zero. Signed-off-by: Masoud Sharbiani Cc: Davide Libenzi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/eventpoll.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/eventpoll.c b/fs/eventpoll.c index 19ffb043abbc..3a3567433b92 100644 --- a/fs/eventpoll.c +++ b/fs/eventpoll.c @@ -1168,7 +1168,7 @@ static int ep_unlink(struct eventpoll *ep, struct epitem *epi) eexit_1: DNPRINTK(3, (KERN_INFO "[%p] eventpoll: ep_unlink(%p, %p) = %d\n", - current, ep, epi->file, error)); + current, ep, epi->ffd.file, error)); return error; } @@ -1236,7 +1236,7 @@ static int ep_poll_callback(wait_queue_t *wait, unsigned mode, int sync, void *k struct eventpoll *ep = epi->ep; DNPRINTK(3, (KERN_INFO "[%p] eventpoll: poll_callback(%p) epi=%p ep=%p\n", - current, epi->file, epi, ep)); + current, epi->ffd.file, epi, ep)); write_lock_irqsave(&ep->lock, flags); From 84692195969b83f0ba57dc33ecf73e6c124dd186 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Sun, 27 Aug 2006 01:23:49 -0700 Subject: [PATCH 369/488] [PATCH] md: avoid backward event updates in md superblock when degraded. If we - shut down a clean array, - restart with one (or more) drive(s) missing - make some changes - pause, so that they array gets marked 'clean', the event count on the superblock of included drives will be the same as that of the removed drives. So adding the removed drive back in will cause it to be included with no resync. To avoid this, we only update the eventcount backwards when the array is not degraded. In this case there can (should) be no non-connected drives that we can get confused with, and this is the particular case where updating-backwards is valuable. Signed-off-by: Neil Brown Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/md/md.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/md/md.c b/drivers/md/md.c index b6d16022a53e..8dbab2ef3885 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -1597,6 +1597,19 @@ void md_update_sb(mddev_t * mddev) repeat: spin_lock_irq(&mddev->write_lock); + + if (mddev->degraded && mddev->sb_dirty == 3) + /* If the array is degraded, then skipping spares is both + * dangerous and fairly pointless. + * Dangerous because a device that was removed from the array + * might have a event_count that still looks up-to-date, + * so it can be re-added without a resync. + * Pointless because if there are any spares to skip, + * then a recovery will happen and soon that array won't + * be degraded any more and the spare can go back to sleep then. + */ + mddev->sb_dirty = 1; + sync_req = mddev->in_sync; mddev->utime = get_seconds(); if (mddev->sb_dirty == 3) From 6394cca54894f6a9bcf927ab78d28985944298ff Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Sun, 27 Aug 2006 01:23:50 -0700 Subject: [PATCH 370/488] [PATCH] md: fix recent breakage of md/raid1 array checking A recent patch broke the ability to do a user-request check of a raid1. This patch fixes the breakage and also moves a comment that was dislocated by the same patch. Signed-off-by: Neil Brown Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/md/raid1.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 1efe22a2d041..87bfe9e7d8ca 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -1625,15 +1625,16 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i return 0; } - /* before building a request, check if we can skip these blocks.. - * This call the bitmap_start_sync doesn't actually record anything - */ if (mddev->bitmap == NULL && mddev->recovery_cp == MaxSector && + !test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery) && conf->fullsync == 0) { *skipped = 1; return max_sector - sector_nr; } + /* before building a request, check if we can skip these blocks.. + * This call the bitmap_start_sync doesn't actually record anything + */ if (!bitmap_start_sync(mddev->bitmap, sector_nr, &sync_blocks, 1) && !conf->fullsync && !test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery)) { /* We can skip this block, and probably several more */ From 4c4d50f7b39cc58f1064b93a61ad617451ae41df Mon Sep 17 00:00:00 2001 From: Paul Jackson Date: Sun, 27 Aug 2006 01:23:51 -0700 Subject: [PATCH 371/488] [PATCH] cpuset: top_cpuset tracks hotplug changes to cpu_online_map Change the list of cpus allowed to tasks in the top (root) cpuset to dynamically track what cpus are online, using a CPU hotplug notifier. Make this top cpus file read-only. On systems that have cpusets configured in their kernel, but that aren't actively using cpusets (for some distros, this covers the majority of systems) all tasks end up in the top cpuset. If that system does support CPU hotplug, then these tasks cannot make use of CPUs that are added after system boot, because the CPUs are not allowed in the top cpuset. This is a surprising regression over earlier kernels that didn't have cpusets enabled. In order to keep the behaviour of cpusets consistent between systems actively making use of them and systems not using them, this patch changes the behaviour of the 'cpus' file in the top (root) cpuset, making it read only, and making it automatically track the value of cpu_online_map. Thus tasks in the top cpuset will have automatic use of hot plugged CPUs allowed by their cpuset. Thanks to Anton Blanchard and Nathan Lynch for reporting this problem, driving the fix, and earlier versions of this patch. Signed-off-by: Paul Jackson Cc: Nathan Lynch Cc: Anton Blanchard Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/cpusets.txt | 6 ++++++ kernel/cpuset.c | 33 +++++++++++++++++++++++++++++++++ 2 files changed, 39 insertions(+) diff --git a/Documentation/cpusets.txt b/Documentation/cpusets.txt index 159e2a0c3e80..76b44290c154 100644 --- a/Documentation/cpusets.txt +++ b/Documentation/cpusets.txt @@ -217,6 +217,12 @@ exclusive cpuset. Also, the use of a Linux virtual file system (vfs) to represent the cpuset hierarchy provides for a familiar permission and name space for cpusets, with a minimum of additional kernel code. +The cpus file in the root (top_cpuset) cpuset is read-only. +It automatically tracks the value of cpu_online_map, using a CPU +hotplug notifier. If and when memory nodes can be hotplugged, +we expect to make the mems file in the root cpuset read-only +as well, and have it track the value of node_online_map. + 1.4 What are exclusive cpusets ? -------------------------------- diff --git a/kernel/cpuset.c b/kernel/cpuset.c index 1a649f2bb9bb..f1dda98bdffe 100644 --- a/kernel/cpuset.c +++ b/kernel/cpuset.c @@ -816,6 +816,10 @@ static int update_cpumask(struct cpuset *cs, char *buf) struct cpuset trialcs; int retval, cpus_unchanged; + /* top_cpuset.cpus_allowed tracks cpu_online_map; it's read-only */ + if (cs == &top_cpuset) + return -EACCES; + trialcs = *cs; retval = cpulist_parse(buf, trialcs.cpus_allowed); if (retval < 0) @@ -2033,6 +2037,33 @@ out: return err; } +/* + * The top_cpuset tracks what CPUs and Memory Nodes are online, + * period. This is necessary in order to make cpusets transparent + * (of no affect) on systems that are actively using CPU hotplug + * but making no active use of cpusets. + * + * This handles CPU hotplug (cpuhp) events. If someday Memory + * Nodes can be hotplugged (dynamically changing node_online_map) + * then we should handle that too, perhaps in a similar way. + */ + +#ifdef CONFIG_HOTPLUG_CPU +static int cpuset_handle_cpuhp(struct notifier_block *nb, + unsigned long phase, void *cpu) +{ + mutex_lock(&manage_mutex); + mutex_lock(&callback_mutex); + + top_cpuset.cpus_allowed = cpu_online_map; + + mutex_unlock(&callback_mutex); + mutex_unlock(&manage_mutex); + + return 0; +} +#endif + /** * cpuset_init_smp - initialize cpus_allowed * @@ -2043,6 +2074,8 @@ void __init cpuset_init_smp(void) { top_cpuset.cpus_allowed = cpu_online_map; top_cpuset.mems_allowed = node_online_map; + + hotcpu_notifier(cpuset_handle_cpuhp, 0); } /** From ea817398e68dfa25612229fda7fc74580cf915fb Mon Sep 17 00:00:00 2001 From: Badari Pulavarty Date: Sun, 27 Aug 2006 01:23:52 -0700 Subject: [PATCH 372/488] [PATCH] Manage jbd allocations from its own slabs JBD currently allocates commit and frozen buffers from slabs. With CONFIG_SLAB_DEBUG, its possible for an allocation to cross the page boundary causing IO problems. https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=200127 So, instead of allocating these from regular slabs - manage allocation from its own slabs and disable slab debug for these slabs. [akpm@osdl.org: cleanups] Signed-off-by: Badari Pulavarty Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/jbd/commit.c | 6 +-- fs/jbd/journal.c | 92 +++++++++++++++++++++++++++++++++++++++++--- fs/jbd/transaction.c | 9 +++-- include/linux/jbd.h | 3 ++ 4 files changed, 97 insertions(+), 13 deletions(-) diff --git a/fs/jbd/commit.c b/fs/jbd/commit.c index 0971814c38b8..42da60784311 100644 --- a/fs/jbd/commit.c +++ b/fs/jbd/commit.c @@ -261,7 +261,7 @@ void journal_commit_transaction(journal_t *journal) struct buffer_head *bh = jh2bh(jh); jbd_lock_bh_state(bh); - kfree(jh->b_committed_data); + jbd_slab_free(jh->b_committed_data, bh->b_size); jh->b_committed_data = NULL; jbd_unlock_bh_state(bh); } @@ -745,14 +745,14 @@ restart_loop: * Otherwise, we can just throw away the frozen data now. */ if (jh->b_committed_data) { - kfree(jh->b_committed_data); + jbd_slab_free(jh->b_committed_data, bh->b_size); jh->b_committed_data = NULL; if (jh->b_frozen_data) { jh->b_committed_data = jh->b_frozen_data; jh->b_frozen_data = NULL; } } else if (jh->b_frozen_data) { - kfree(jh->b_frozen_data); + jbd_slab_free(jh->b_frozen_data, bh->b_size); jh->b_frozen_data = NULL; } diff --git a/fs/jbd/journal.c b/fs/jbd/journal.c index 8c9b28dff119..f66724ce443a 100644 --- a/fs/jbd/journal.c +++ b/fs/jbd/journal.c @@ -84,6 +84,7 @@ EXPORT_SYMBOL(journal_force_commit); static int journal_convert_superblock_v1(journal_t *, journal_superblock_t *); static void __journal_abort_soft (journal_t *journal, int errno); +static int journal_create_jbd_slab(size_t slab_size); /* * Helper function used to manage commit timeouts @@ -328,10 +329,10 @@ repeat: char *tmp; jbd_unlock_bh_state(bh_in); - tmp = jbd_rep_kmalloc(bh_in->b_size, GFP_NOFS); + tmp = jbd_slab_alloc(bh_in->b_size, GFP_NOFS); jbd_lock_bh_state(bh_in); if (jh_in->b_frozen_data) { - kfree(tmp); + jbd_slab_free(tmp, bh_in->b_size); goto repeat; } @@ -1069,17 +1070,17 @@ static int load_superblock(journal_t *journal) int journal_load(journal_t *journal) { int err; + journal_superblock_t *sb; err = load_superblock(journal); if (err) return err; + sb = journal->j_superblock; /* If this is a V2 superblock, then we have to check the * features flags on it. */ if (journal->j_format_version >= 2) { - journal_superblock_t *sb = journal->j_superblock; - if ((sb->s_feature_ro_compat & ~cpu_to_be32(JFS_KNOWN_ROCOMPAT_FEATURES)) || (sb->s_feature_incompat & @@ -1090,6 +1091,13 @@ int journal_load(journal_t *journal) } } + /* + * Create a slab for this blocksize + */ + err = journal_create_jbd_slab(cpu_to_be32(sb->s_blocksize)); + if (err) + return err; + /* Let the recovery code check whether it needs to recover any * data from the journal. */ if (journal_recover(journal)) @@ -1611,6 +1619,77 @@ void * __jbd_kmalloc (const char *where, size_t size, gfp_t flags, int retry) return kmalloc(size, flags | (retry ? __GFP_NOFAIL : 0)); } +/* + * jbd slab management: create 1k, 2k, 4k, 8k slabs as needed + * and allocate frozen and commit buffers from these slabs. + * + * Reason for doing this is to avoid, SLAB_DEBUG - since it could + * cause bh to cross page boundary. + */ + +#define JBD_MAX_SLABS 5 +#define JBD_SLAB_INDEX(size) (size >> 11) + +static kmem_cache_t *jbd_slab[JBD_MAX_SLABS]; +static const char *jbd_slab_names[JBD_MAX_SLABS] = { + "jbd_1k", "jbd_2k", "jbd_4k", NULL, "jbd_8k" +}; + +static void journal_destroy_jbd_slabs(void) +{ + int i; + + for (i = 0; i < JBD_MAX_SLABS; i++) { + if (jbd_slab[i]) + kmem_cache_destroy(jbd_slab[i]); + jbd_slab[i] = NULL; + } +} + +static int journal_create_jbd_slab(size_t slab_size) +{ + int i = JBD_SLAB_INDEX(slab_size); + + BUG_ON(i >= JBD_MAX_SLABS); + + /* + * Check if we already have a slab created for this size + */ + if (jbd_slab[i]) + return 0; + + /* + * Create a slab and force alignment to be same as slabsize - + * this will make sure that allocations won't cross the page + * boundary. + */ + jbd_slab[i] = kmem_cache_create(jbd_slab_names[i], + slab_size, slab_size, 0, NULL, NULL); + if (!jbd_slab[i]) { + printk(KERN_EMERG "JBD: no memory for jbd_slab cache\n"); + return -ENOMEM; + } + return 0; +} + +void * jbd_slab_alloc(size_t size, gfp_t flags) +{ + int idx; + + idx = JBD_SLAB_INDEX(size); + BUG_ON(jbd_slab[idx] == NULL); + return kmem_cache_alloc(jbd_slab[idx], flags | __GFP_NOFAIL); +} + +void jbd_slab_free(void *ptr, size_t size) +{ + int idx; + + idx = JBD_SLAB_INDEX(size); + BUG_ON(jbd_slab[idx] == NULL); + kmem_cache_free(jbd_slab[idx], ptr); +} + /* * Journal_head storage management */ @@ -1799,13 +1878,13 @@ static void __journal_remove_journal_head(struct buffer_head *bh) printk(KERN_WARNING "%s: freeing " "b_frozen_data\n", __FUNCTION__); - kfree(jh->b_frozen_data); + jbd_slab_free(jh->b_frozen_data, bh->b_size); } if (jh->b_committed_data) { printk(KERN_WARNING "%s: freeing " "b_committed_data\n", __FUNCTION__); - kfree(jh->b_committed_data); + jbd_slab_free(jh->b_committed_data, bh->b_size); } bh->b_private = NULL; jh->b_bh = NULL; /* debug, really */ @@ -1961,6 +2040,7 @@ static void journal_destroy_caches(void) journal_destroy_revoke_caches(); journal_destroy_journal_head_cache(); journal_destroy_handle_cache(); + journal_destroy_jbd_slabs(); } static int __init journal_init(void) diff --git a/fs/jbd/transaction.c b/fs/jbd/transaction.c index 508b2ea91f43..de2e4cbbf79a 100644 --- a/fs/jbd/transaction.c +++ b/fs/jbd/transaction.c @@ -666,8 +666,9 @@ repeat: if (!frozen_buffer) { JBUFFER_TRACE(jh, "allocate memory for buffer"); jbd_unlock_bh_state(bh); - frozen_buffer = jbd_kmalloc(jh2bh(jh)->b_size, - GFP_NOFS); + frozen_buffer = + jbd_slab_alloc(jh2bh(jh)->b_size, + GFP_NOFS); if (!frozen_buffer) { printk(KERN_EMERG "%s: OOM for frozen_buffer\n", @@ -879,7 +880,7 @@ int journal_get_undo_access(handle_t *handle, struct buffer_head *bh) repeat: if (!jh->b_committed_data) { - committed_data = jbd_kmalloc(jh2bh(jh)->b_size, GFP_NOFS); + committed_data = jbd_slab_alloc(jh2bh(jh)->b_size, GFP_NOFS); if (!committed_data) { printk(KERN_EMERG "%s: No memory for committed data\n", __FUNCTION__); @@ -906,7 +907,7 @@ repeat: out: journal_put_journal_head(jh); if (unlikely(committed_data)) - kfree(committed_data); + jbd_slab_free(committed_data, bh->b_size); return err; } diff --git a/include/linux/jbd.h b/include/linux/jbd.h index 20eb34403d0c..a04c154c5207 100644 --- a/include/linux/jbd.h +++ b/include/linux/jbd.h @@ -72,6 +72,9 @@ extern int journal_enable_debug; #endif extern void * __jbd_kmalloc (const char *where, size_t size, gfp_t flags, int retry); +extern void * jbd_slab_alloc(size_t size, gfp_t flags); +extern void jbd_slab_free(void *ptr, size_t size); + #define jbd_kmalloc(size, flags) \ __jbd_kmalloc(__FUNCTION__, (size), (flags), journal_oom_retry) #define jbd_rep_kmalloc(size, flags) \ From 36920e069a87c6fccffbc0ec5e74985d94d3bcc4 Mon Sep 17 00:00:00 2001 From: KAMEZAWA Hiroyuki Date: Sun, 27 Aug 2006 01:23:52 -0700 Subject: [PATCH 373/488] [PATCH] register_one_node() compile fix register_one_node()'s should be defined under CONFIG_NUMA=n. fixes following bug. CC init/version.o LD init/built-in.o LD .tmp_vmlinux1 mm/built-in.o: In function `add_memory': undefined reference to `register_one_node' Signed-off-by: KAMEZAWA Hiroyuki Acked-by: Yasunori Goto Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/node.h | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/include/linux/node.h b/include/linux/node.h index 81dcec84cd8f..bc001bc225c3 100644 --- a/include/linux/node.h +++ b/include/linux/node.h @@ -30,12 +30,20 @@ extern struct node node_devices[]; extern int register_node(struct node *, int, struct node *); extern void unregister_node(struct node *node); +#ifdef CONFIG_NUMA extern int register_one_node(int nid); extern void unregister_one_node(int nid); -#ifdef CONFIG_NUMA extern int register_cpu_under_node(unsigned int cpu, unsigned int nid); extern int unregister_cpu_under_node(unsigned int cpu, unsigned int nid); #else +static inline int register_one_node(int nid) +{ + return 0; +} +static inline int unregister_one_node(int nid) +{ + return 0; +} static inline int register_cpu_under_node(unsigned int cpu, unsigned int nid) { return 0; From 0d673a5a4775d3dc565b6668ed75fd2db2ede624 Mon Sep 17 00:00:00 2001 From: Nick Piggin Date: Sun, 27 Aug 2006 01:23:54 -0700 Subject: [PATCH 374/488] [PATCH] cpuset: oom panic fix cpuset_excl_nodes_overlap always returns 0 if current is exiting. This caused customer's systems to panic in the OOM killer when processes were having trouble getting memory for the final put_user in mm_release. Even though there were lots of processes to kill. Change to returning 1 in this case. This achieves parity with !CONFIG_CPUSETS case, and was observed to fix the problem. Signed-off-by: Nick Piggin Acked-by: Paul Jackson Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/cpuset.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/cpuset.c b/kernel/cpuset.c index f1dda98bdffe..4ea6f0dc2fc5 100644 --- a/kernel/cpuset.c +++ b/kernel/cpuset.c @@ -2420,7 +2420,7 @@ EXPORT_SYMBOL_GPL(cpuset_mem_spread_node); int cpuset_excl_nodes_overlap(const struct task_struct *p) { const struct cpuset *cs1, *cs2; /* my and p's cpuset ancestors */ - int overlap = 0; /* do cpusets overlap? */ + int overlap = 1; /* do cpusets overlap? */ task_lock(current); if (current->flags & PF_EXITING) { From 4e54bdaa9cf55d7e74409ea288b705c144b2627e Mon Sep 17 00:00:00 2001 From: KAMEZAWA Hiroyuki Date: Sun, 27 Aug 2006 01:23:55 -0700 Subject: [PATCH 375/488] [PATCH] CONFIG_ACPI_SRAT NUMA build fix In file included from include/asm/mmzone.h:18, from include/linux/mmzone.h:439, include/asm/srat.h:31:2: error: #error CONFIG_ACPI_SRAT not defined, and srat.h header has been included make[1]: *** [arch/i386/kernel/asm-offsets.s] Error 1 This can happen with CONFIG_NUMA && !CONFIG_ACPI && !CONFIG_X86_NUMAQ Signed-off-by: KAMEZAWA Hiroyuki Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-i386/mmzone.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/asm-i386/mmzone.h b/include/asm-i386/mmzone.h index e33e9f9e4c66..22cb07cc8f32 100644 --- a/include/asm-i386/mmzone.h +++ b/include/asm-i386/mmzone.h @@ -14,7 +14,7 @@ extern struct pglist_data *node_data[]; #ifdef CONFIG_X86_NUMAQ #include -#else /* summit or generic arch */ +#elif defined(CONFIG_ACPI_SRAT)/* summit or generic arch */ #include #endif From 36e8e5783297fbb83bdebe7e245ef659958f23cb Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Sun, 27 Aug 2006 01:23:56 -0700 Subject: [PATCH 376/488] [PATCH] lockdep: annotate idescsi_pc_intr() idescsi_pc_intr() uses local_irq_enable() in IRQ context: annotate it. (this has no effect on kernels with lockdep disabled. On kernels with lockdep enabled this means that we wont actually disable interrupts, and the warning message will go away as well.) Signed-off-by: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/scsi/ide-scsi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/ide-scsi.c b/drivers/scsi/ide-scsi.c index f7b5d7372d26..94d1de55607f 100644 --- a/drivers/scsi/ide-scsi.c +++ b/drivers/scsi/ide-scsi.c @@ -517,7 +517,7 @@ static ide_startstop_t idescsi_pc_intr (ide_drive_t *drive) /* No more interrupts */ if (test_bit(IDESCSI_LOG_CMD, &scsi->log)) printk (KERN_INFO "Packet command completed, %d bytes transferred\n", pc->actually_transferred); - local_irq_enable(); + local_irq_enable_in_hardirq(); if (status.b.check) rq->errors++; idescsi_end_request (drive, 1, 0); From 4df46240a1312161e3c794f6ace50ef7eb5ff3d7 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Sun, 27 Aug 2006 01:23:56 -0700 Subject: [PATCH 377/488] [PATCH] lockdep: annotate reiserfs reiserfs seems to have another locking level layer for the i_mutex due to the xattrs-are-a-directory thing. Signed-off-by: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/reiserfs/xattr.c | 2 +- include/linux/fs.h | 3 ++- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c index 39fedaa88a0c..d935fb9394e3 100644 --- a/fs/reiserfs/xattr.c +++ b/fs/reiserfs/xattr.c @@ -424,7 +424,7 @@ int xattr_readdir(struct file *file, filldir_t filler, void *buf) int res = -ENOTDIR; if (!file->f_op || !file->f_op->readdir) goto out; - mutex_lock(&inode->i_mutex); + mutex_lock_nested(&inode->i_mutex, I_MUTEX_XATTR); // down(&inode->i_zombie); res = -ENOENT; if (!IS_DEADDIR(inode)) { diff --git a/include/linux/fs.h b/include/linux/fs.h index 25610205c90d..555bc195c420 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -570,13 +570,14 @@ struct inode { * 3: quota file * * The locking order between these classes is - * parent -> child -> normal -> quota + * parent -> child -> normal -> xattr -> quota */ enum inode_i_mutex_lock_class { I_MUTEX_NORMAL, I_MUTEX_PARENT, I_MUTEX_CHILD, + I_MUTEX_XATTR, I_MUTEX_QUOTA }; From 513627d7fec6fcb7b3d56ce355cb4d192c76b530 Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Sun, 27 Aug 2006 01:23:57 -0700 Subject: [PATCH 378/488] [PATCH] fix up lockdep trace in fs/exec.c This fixes the locking error noticed by lockdep: ============================================= [ INFO: possible recursive locking detected ] --------------------------------------------- init/1 is trying to acquire lock: (&sighand->siglock){....}, at: [] flush_old_exec+0x3ae/0x859 but task is already holding lock: (&sighand->siglock){....}, at: [] flush_old_exec+0x39e/0x859 other info that might help us debug this: 2 locks held by init/1: #0: (tasklist_lock){..--}, at: [] flush_old_exec+0x38e/0x859 #1: (&sighand->siglock){....}, at: [] flush_old_exec+0x39e/0x859 stack backtrace: [] show_trace_log_lvl+0x54/0xfd [] show_trace+0xd/0x10 [] dump_stack+0x19/0x1b [] __lock_acquire+0x773/0x997 [] lock_acquire+0x4b/0x6c [] _spin_lock+0x19/0x28 [] flush_old_exec+0x3ae/0x859 [] load_elf_binary+0x4aa/0x1628 [] search_binary_handler+0xa7/0x24e [] do_execve+0x15b/0x1f9 [] sys_execve+0x29/0x4d [] syscall_call+0x7/0xb Signed-off-by: Arjan van de Ven Signed-off-by: Dave Jones Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/exec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/exec.c b/fs/exec.c index f7aabfeca033..54135df2a966 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -751,7 +751,7 @@ no_thread_group: write_lock_irq(&tasklist_lock); spin_lock(&oldsighand->siglock); - spin_lock(&newsighand->siglock); + spin_lock_nested(&newsighand->siglock, SINGLE_DEPTH_NESTING); rcu_assign_pointer(current->sighand, newsighand); recalc_sigpending(); From f5ef68da5fda5e095b585ea5ecdd42af3c8695f7 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Sun, 27 Aug 2006 01:23:58 -0700 Subject: [PATCH 379/488] [PATCH] /proc/meminfo: don't put spaces in names None of the other /proc/meminfo lines have a space in the identifier. This post-2.6.17 addition has the potential to break existing parsers, so use an underscore instead (like Committed_AS). Cc: Christoph Lameter Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/base/node.c | 2 +- fs/proc/proc_misc.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/base/node.c b/drivers/base/node.c index d7de1753e094..e9b0957f15d1 100644 --- a/drivers/base/node.c +++ b/drivers/base/node.c @@ -64,7 +64,7 @@ static ssize_t node_read_meminfo(struct sys_device * dev, char * buf) "Node %d Mapped: %8lu kB\n" "Node %d AnonPages: %8lu kB\n" "Node %d PageTables: %8lu kB\n" - "Node %d NFS Unstable: %8lu kB\n" + "Node %d NFS_Unstable: %8lu kB\n" "Node %d Bounce: %8lu kB\n" "Node %d Slab: %8lu kB\n", nid, K(i.totalram), diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c index 9f2cfc30f9cf..942156225447 100644 --- a/fs/proc/proc_misc.c +++ b/fs/proc/proc_misc.c @@ -169,7 +169,7 @@ static int meminfo_read_proc(char *page, char **start, off_t off, "Mapped: %8lu kB\n" "Slab: %8lu kB\n" "PageTables: %8lu kB\n" - "NFS Unstable: %8lu kB\n" + "NFS_Unstable: %8lu kB\n" "Bounce: %8lu kB\n" "CommitLimit: %8lu kB\n" "Committed_AS: %8lu kB\n" From 38e716aa016dfd8466c11500c56ab7773344fdf7 Mon Sep 17 00:00:00 2001 From: KAMEZAWA Hiroyuki Date: Sun, 27 Aug 2006 01:24:00 -0700 Subject: [PATCH 380/488] [PATCH] x86: NUMAQ Kconfig fix When we select NUMA with i386, the system is only X86_NUMAQ or using ACPI. Signed-off-by: KAMEZAWA Hiroyuki Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/i386/Kconfig | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig index f71fb4a029cb..b2751eadbc56 100644 --- a/arch/i386/Kconfig +++ b/arch/i386/Kconfig @@ -142,6 +142,7 @@ config X86_SUMMIT In particular, it is needed for the x440. If you don't have one of these computers, you should say N here. + If you want to build a NUMA kernel, you must select ACPI. config X86_BIGSMP bool "Support for other sub-arch SMP systems with more than 8 CPUs" @@ -169,6 +170,7 @@ config X86_GENERICARCH help This option compiles in the Summit, bigsmp, ES7000, default subarchitectures. It is intended for a generic binary kernel. + If you want a NUMA kernel, select ACPI. We need SRAT for NUMA. config X86_ES7000 bool "Support for Unisys ES7000 IA32 series" @@ -542,7 +544,7 @@ config X86_PAE # Common NUMA Features config NUMA bool "Numa Memory Allocation and Scheduler Support" - depends on SMP && HIGHMEM64G && (X86_NUMAQ || X86_GENERICARCH || (X86_SUMMIT && ACPI)) + depends on SMP && HIGHMEM64G && (X86_NUMAQ || (X86_SUMMIT || X86_GENERICARCH) && ACPI) default n if X86_PC default y if (X86_NUMAQ || X86_SUMMIT) From 9c275a8391d96b49fa135d1e4073d4798b7c6445 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Sun, 27 Aug 2006 01:24:00 -0700 Subject: [PATCH 381/488] [PATCH] cdrom/gdsc: fix printk format warning MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix printk format warning: drivers/cdrom/gscd.c:269: warning: format ‘%lu’ expects type ‘long unsigned int’, but argument 2 has type ‘unsigned int’ Signed-off-by: Randy Dunlap Cc: Jens Axboe Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/cdrom/gscd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/cdrom/gscd.c b/drivers/cdrom/gscd.c index b6ee50a2916d..fa7082489765 100644 --- a/drivers/cdrom/gscd.c +++ b/drivers/cdrom/gscd.c @@ -266,7 +266,7 @@ repeat: goto out; if (req->cmd != READ) { - printk("GSCD: bad cmd %lu\n", rq_data_dir(req)); + printk("GSCD: bad cmd %u\n", rq_data_dir(req)); end_request(req, 0); goto repeat; } From af9b897ee639d96b2bd29b65b50cd0a1f2b6d6c9 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Sun, 27 Aug 2006 01:24:01 -0700 Subject: [PATCH 382/488] [PATCH] tty layer comment the locking assumptions and functions somewhat Doesn't fix them but does show up some interesting areas that need review and fixing. Signed-off-by: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/tty_io.c | 718 +++++++++++++++++++++++++++++++++++---- drivers/char/tty_ioctl.c | 59 +++- 2 files changed, 715 insertions(+), 62 deletions(-) diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c index d6e4eaa48538..2cef982585f0 100644 --- a/drivers/char/tty_io.c +++ b/drivers/char/tty_io.c @@ -153,6 +153,15 @@ int tty_ioctl(struct inode * inode, struct file * file, static int tty_fasync(int fd, struct file * filp, int on); static void release_mem(struct tty_struct *tty, int idx); +/** + * alloc_tty_struct - allocate a tty object + * + * Return a new empty tty structure. The data fields have not + * been initialized in any way but has been zeroed + * + * Locking: none + * FIXME: use kzalloc + */ static struct tty_struct *alloc_tty_struct(void) { @@ -166,6 +175,15 @@ static struct tty_struct *alloc_tty_struct(void) static void tty_buffer_free_all(struct tty_struct *); +/** + * free_tty_struct - free a disused tty + * @tty: tty struct to free + * + * Free the write buffers, tty queue and tty memory itself. + * + * Locking: none. Must be called after tty is definitely unused + */ + static inline void free_tty_struct(struct tty_struct *tty) { kfree(tty->write_buf); @@ -175,6 +193,17 @@ static inline void free_tty_struct(struct tty_struct *tty) #define TTY_NUMBER(tty) ((tty)->index + (tty)->driver->name_base) +/** + * tty_name - return tty naming + * @tty: tty structure + * @buf: buffer for output + * + * Convert a tty structure into a name. The name reflects the kernel + * naming policy and if udev is in use may not reflect user space + * + * Locking: none + */ + char *tty_name(struct tty_struct *tty, char *buf) { if (!tty) /* Hmm. NULL pointer. That's fun. */ @@ -235,6 +264,17 @@ static int check_tty_count(struct tty_struct *tty, const char *routine) * Tty buffer allocation management */ + +/** + * tty_buffer_free_all - free buffers used by a tty + * @tty: tty to free from + * + * Remove all the buffers pending on a tty whether queued with data + * or in the free ring. Must be called when the tty is no longer in use + * + * Locking: none + */ + static void tty_buffer_free_all(struct tty_struct *tty) { struct tty_buffer *thead; @@ -347,6 +387,18 @@ int tty_buffer_request_room(struct tty_struct *tty, size_t size) } EXPORT_SYMBOL_GPL(tty_buffer_request_room); +/** + * tty_insert_flip_string - Add characters to the tty buffer + * @tty: tty structure + * @chars: characters + * @size: size + * + * Queue a series of bytes to the tty buffering. All the characters + * passed are marked as without error. Returns the number added. + * + * Locking: Called functions may take tty->buf.lock + */ + int tty_insert_flip_string(struct tty_struct *tty, const unsigned char *chars, size_t size) { @@ -370,6 +422,20 @@ int tty_insert_flip_string(struct tty_struct *tty, const unsigned char *chars, } EXPORT_SYMBOL(tty_insert_flip_string); +/** + * tty_insert_flip_string_flags - Add characters to the tty buffer + * @tty: tty structure + * @chars: characters + * @flags: flag bytes + * @size: size + * + * Queue a series of bytes to the tty buffering. For each character + * the flags array indicates the status of the character. Returns the + * number added. + * + * Locking: Called functions may take tty->buf.lock + */ + int tty_insert_flip_string_flags(struct tty_struct *tty, const unsigned char *chars, const char *flags, size_t size) { @@ -394,6 +460,17 @@ int tty_insert_flip_string_flags(struct tty_struct *tty, } EXPORT_SYMBOL(tty_insert_flip_string_flags); +/** + * tty_schedule_flip - push characters to ldisc + * @tty: tty to push from + * + * Takes any pending buffers and transfers their ownership to the + * ldisc side of the queue. It then schedules those characters for + * processing by the line discipline. + * + * Locking: Takes tty->buf.lock + */ + void tty_schedule_flip(struct tty_struct *tty) { unsigned long flags; @@ -405,12 +482,19 @@ void tty_schedule_flip(struct tty_struct *tty) } EXPORT_SYMBOL(tty_schedule_flip); -/* +/** + * tty_prepare_flip_string - make room for characters + * @tty: tty + * @chars: return pointer for character write area + * @size: desired size + * * Prepare a block of space in the buffer for data. Returns the length * available and buffer pointer to the space which is now allocated and * accounted for as ready for normal characters. This is used for drivers * that need their own block copy routines into the buffer. There is no * guarantee the buffer is a DMA target! + * + * Locking: May call functions taking tty->buf.lock */ int tty_prepare_flip_string(struct tty_struct *tty, unsigned char **chars, size_t size) @@ -427,12 +511,20 @@ int tty_prepare_flip_string(struct tty_struct *tty, unsigned char **chars, size_ EXPORT_SYMBOL_GPL(tty_prepare_flip_string); -/* +/** + * tty_prepare_flip_string_flags - make room for characters + * @tty: tty + * @chars: return pointer for character write area + * @flags: return pointer for status flag write area + * @size: desired size + * * Prepare a block of space in the buffer for data. Returns the length * available and buffer pointer to the space which is now allocated and * accounted for as ready for characters. This is used for drivers * that need their own block copy routines into the buffer. There is no * guarantee the buffer is a DMA target! + * + * Locking: May call functions taking tty->buf.lock */ int tty_prepare_flip_string_flags(struct tty_struct *tty, unsigned char **chars, char **flags, size_t size) @@ -451,10 +543,16 @@ EXPORT_SYMBOL_GPL(tty_prepare_flip_string_flags); -/* +/** + * tty_set_termios_ldisc - set ldisc field + * @tty: tty structure + * @num: line discipline number + * * This is probably overkill for real world processors but * they are not on hot paths so a little discipline won't do * any harm. + * + * Locking: takes termios_sem */ static void tty_set_termios_ldisc(struct tty_struct *tty, int num) @@ -474,6 +572,19 @@ static DEFINE_SPINLOCK(tty_ldisc_lock); static DECLARE_WAIT_QUEUE_HEAD(tty_ldisc_wait); static struct tty_ldisc tty_ldiscs[NR_LDISCS]; /* line disc dispatch table */ +/** + * tty_register_ldisc - install a line discipline + * @disc: ldisc number + * @new_ldisc: pointer to the ldisc object + * + * Installs a new line discipline into the kernel. The discipline + * is set up as unreferenced and then made available to the kernel + * from this point onwards. + * + * Locking: + * takes tty_ldisc_lock to guard against ldisc races + */ + int tty_register_ldisc(int disc, struct tty_ldisc *new_ldisc) { unsigned long flags; @@ -493,6 +604,18 @@ int tty_register_ldisc(int disc, struct tty_ldisc *new_ldisc) } EXPORT_SYMBOL(tty_register_ldisc); +/** + * tty_unregister_ldisc - unload a line discipline + * @disc: ldisc number + * @new_ldisc: pointer to the ldisc object + * + * Remove a line discipline from the kernel providing it is not + * currently in use. + * + * Locking: + * takes tty_ldisc_lock to guard against ldisc races + */ + int tty_unregister_ldisc(int disc) { unsigned long flags; @@ -512,6 +635,19 @@ int tty_unregister_ldisc(int disc) } EXPORT_SYMBOL(tty_unregister_ldisc); +/** + * tty_ldisc_get - take a reference to an ldisc + * @disc: ldisc number + * + * Takes a reference to a line discipline. Deals with refcounts and + * module locking counts. Returns NULL if the discipline is not available. + * Returns a pointer to the discipline and bumps the ref count if it is + * available + * + * Locking: + * takes tty_ldisc_lock to guard against ldisc races + */ + struct tty_ldisc *tty_ldisc_get(int disc) { unsigned long flags; @@ -540,6 +676,17 @@ struct tty_ldisc *tty_ldisc_get(int disc) EXPORT_SYMBOL_GPL(tty_ldisc_get); +/** + * tty_ldisc_put - drop ldisc reference + * @disc: ldisc number + * + * Drop a reference to a line discipline. Manage refcounts and + * module usage counts + * + * Locking: + * takes tty_ldisc_lock to guard against ldisc races + */ + void tty_ldisc_put(int disc) { struct tty_ldisc *ld; @@ -557,6 +704,19 @@ void tty_ldisc_put(int disc) EXPORT_SYMBOL_GPL(tty_ldisc_put); +/** + * tty_ldisc_assign - set ldisc on a tty + * @tty: tty to assign + * @ld: line discipline + * + * Install an instance of a line discipline into a tty structure. The + * ldisc must have a reference count above zero to ensure it remains/ + * The tty instance refcount starts at zero. + * + * Locking: + * Caller must hold references + */ + static void tty_ldisc_assign(struct tty_struct *tty, struct tty_ldisc *ld) { tty->ldisc = *ld; @@ -571,6 +731,8 @@ static void tty_ldisc_assign(struct tty_struct *tty, struct tty_ldisc *ld) * the tty ldisc. Return 0 on failure or 1 on success. This is * used to implement both the waiting and non waiting versions * of tty_ldisc_ref + * + * Locking: takes tty_ldisc_lock */ static int tty_ldisc_try(struct tty_struct *tty) @@ -602,6 +764,8 @@ static int tty_ldisc_try(struct tty_struct *tty) * must also be careful not to hold other locks that will deadlock * against a discipline change, such as an existing ldisc reference * (which we check for) + * + * Locking: call functions take tty_ldisc_lock */ struct tty_ldisc *tty_ldisc_ref_wait(struct tty_struct *tty) @@ -622,6 +786,8 @@ EXPORT_SYMBOL_GPL(tty_ldisc_ref_wait); * Dereference the line discipline for the terminal and take a * reference to it. If the line discipline is in flux then * return NULL. Can be called from IRQ and timer functions. + * + * Locking: called functions take tty_ldisc_lock */ struct tty_ldisc *tty_ldisc_ref(struct tty_struct *tty) @@ -639,6 +805,8 @@ EXPORT_SYMBOL_GPL(tty_ldisc_ref); * * Undoes the effect of tty_ldisc_ref or tty_ldisc_ref_wait. May * be called in IRQ context. + * + * Locking: takes tty_ldisc_lock */ void tty_ldisc_deref(struct tty_ldisc *ld) @@ -683,6 +851,9 @@ static void tty_ldisc_enable(struct tty_struct *tty) * * Set the discipline of a tty line. Must be called from a process * context. + * + * Locking: takes tty_ldisc_lock. + * called functions take termios_sem */ static int tty_set_ldisc(struct tty_struct *tty, int ldisc) @@ -846,9 +1017,17 @@ restart: return retval; } -/* - * This routine returns a tty driver structure, given a device number +/** + * get_tty_driver - find device of a tty + * @dev_t: device identifier + * @index: returns the index of the tty + * + * This routine returns a tty driver structure, given a device number + * and also passes back the index number. + * + * Locking: caller must hold tty_mutex */ + static struct tty_driver *get_tty_driver(dev_t device, int *index) { struct tty_driver *p; @@ -863,11 +1042,17 @@ static struct tty_driver *get_tty_driver(dev_t device, int *index) return NULL; } -/* - * If we try to write to, or set the state of, a terminal and we're - * not in the foreground, send a SIGTTOU. If the signal is blocked or - * ignored, go ahead and perform the operation. (POSIX 7.2) +/** + * tty_check_change - check for POSIX terminal changes + * @tty: tty to check + * + * If we try to write to, or set the state of, a terminal and we're + * not in the foreground, send a SIGTTOU. If the signal is blocked or + * ignored, go ahead and perform the operation. (POSIX 7.2) + * + * Locking: none */ + int tty_check_change(struct tty_struct * tty) { if (current->signal->tty != tty) @@ -1005,10 +1190,27 @@ void tty_ldisc_flush(struct tty_struct *tty) EXPORT_SYMBOL_GPL(tty_ldisc_flush); -/* - * This can be called by the "eventd" kernel thread. That is process synchronous, - * but doesn't hold any locks, so we need to make sure we have the appropriate - * locks for what we're doing.. +/** + * do_tty_hangup - actual handler for hangup events + * @data: tty device + * + * This can be called by the "eventd" kernel thread. That is process + * synchronous but doesn't hold any locks, so we need to make sure we + * have the appropriate locks for what we're doing. + * + * The hangup event clears any pending redirections onto the hung up + * device. It ensures future writes will error and it does the needed + * line discipline hangup and signal delivery. The tty object itself + * remains intact. + * + * Locking: + * BKL + * redirect lock for undoing redirection + * file list lock for manipulating list of ttys + * tty_ldisc_lock from called functions + * termios_sem resetting termios data + * tasklist_lock to walk task list for hangup event + * */ static void do_tty_hangup(void *data) { @@ -1133,6 +1335,14 @@ static void do_tty_hangup(void *data) fput(f); } +/** + * tty_hangup - trigger a hangup event + * @tty: tty to hangup + * + * A carrier loss (virtual or otherwise) has occurred on this like + * schedule a hangup sequence to run after this event. + */ + void tty_hangup(struct tty_struct * tty) { #ifdef TTY_DEBUG_HANGUP @@ -1145,6 +1355,15 @@ void tty_hangup(struct tty_struct * tty) EXPORT_SYMBOL(tty_hangup); +/** + * tty_vhangup - process vhangup + * @tty: tty to hangup + * + * The user has asked via system call for the terminal to be hung up. + * We do this synchronously so that when the syscall returns the process + * is complete. That guarantee is neccessary for security reasons. + */ + void tty_vhangup(struct tty_struct * tty) { #ifdef TTY_DEBUG_HANGUP @@ -1156,6 +1375,14 @@ void tty_vhangup(struct tty_struct * tty) } EXPORT_SYMBOL(tty_vhangup); +/** + * tty_hung_up_p - was tty hung up + * @filp: file pointer of tty + * + * Return true if the tty has been subject to a vhangup or a carrier + * loss + */ + int tty_hung_up_p(struct file * filp) { return (filp->f_op == &hung_up_tty_fops); @@ -1163,19 +1390,28 @@ int tty_hung_up_p(struct file * filp) EXPORT_SYMBOL(tty_hung_up_p); -/* - * This function is typically called only by the session leader, when - * it wants to disassociate itself from its controlling tty. +/** + * disassociate_ctty - disconnect controlling tty + * @on_exit: true if exiting so need to "hang up" the session * - * It performs the following functions: + * This function is typically called only by the session leader, when + * it wants to disassociate itself from its controlling tty. + * + * It performs the following functions: * (1) Sends a SIGHUP and SIGCONT to the foreground process group * (2) Clears the tty from being controlling the session * (3) Clears the controlling tty for all processes in the * session group. * - * The argument on_exit is set to 1 if called when a process is - * exiting; it is 0 if called by the ioctl TIOCNOTTY. + * The argument on_exit is set to 1 if called when a process is + * exiting; it is 0 if called by the ioctl TIOCNOTTY. + * + * Locking: tty_mutex is taken to protect current->signal->tty + * BKL is taken for hysterical raisins + * Tasklist lock is taken (under tty_mutex) to walk process + * lists for the session. */ + void disassociate_ctty(int on_exit) { struct tty_struct *tty; @@ -1222,6 +1458,25 @@ void disassociate_ctty(int on_exit) unlock_kernel(); } + +/** + * stop_tty - propogate flow control + * @tty: tty to stop + * + * Perform flow control to the driver. For PTY/TTY pairs we + * must also propogate the TIOCKPKT status. May be called + * on an already stopped device and will not re-call the driver + * method. + * + * This functionality is used by both the line disciplines for + * halting incoming flow and by the driver. It may therefore be + * called from any context, may be under the tty atomic_write_lock + * but not always. + * + * Locking: + * Broken. Relies on BKL which is unsafe here. + */ + void stop_tty(struct tty_struct *tty) { if (tty->stopped) @@ -1238,6 +1493,19 @@ void stop_tty(struct tty_struct *tty) EXPORT_SYMBOL(stop_tty); +/** + * start_tty - propogate flow control + * @tty: tty to start + * + * Start a tty that has been stopped if at all possible. Perform + * any neccessary wakeups and propogate the TIOCPKT status. If this + * is the tty was previous stopped and is being started then the + * driver start method is invoked and the line discipline woken. + * + * Locking: + * Broken. Relies on BKL which is unsafe here. + */ + void start_tty(struct tty_struct *tty) { if (!tty->stopped || tty->flow_stopped) @@ -1258,6 +1526,23 @@ void start_tty(struct tty_struct *tty) EXPORT_SYMBOL(start_tty); +/** + * tty_read - read method for tty device files + * @file: pointer to tty file + * @buf: user buffer + * @count: size of user buffer + * @ppos: unused + * + * Perform the read system call function on this terminal device. Checks + * for hung up devices before calling the line discipline method. + * + * Locking: + * Locks the line discipline internally while needed + * For historical reasons the line discipline read method is + * invoked under the BKL. This will go away in time so do not rely on it + * in new code. Multiple read calls may be outstanding in parallel. + */ + static ssize_t tty_read(struct file * file, char __user * buf, size_t count, loff_t *ppos) { @@ -1302,6 +1587,7 @@ static inline ssize_t do_tty_write( ssize_t ret = 0, written = 0; unsigned int chunk; + /* FIXME: O_NDELAY ... */ if (mutex_lock_interruptible(&tty->atomic_write_lock)) { return -ERESTARTSYS; } @@ -1318,6 +1604,9 @@ static inline ssize_t do_tty_write( * layer has problems with bigger chunks. It will * claim to be able to handle more characters than * it actually does. + * + * FIXME: This can probably go away now except that 64K chunks + * are too likely to fail unless switched to vmalloc... */ chunk = 2048; if (test_bit(TTY_NO_WRITE_SPLIT, &tty->flags)) @@ -1375,6 +1664,24 @@ static inline ssize_t do_tty_write( } +/** + * tty_write - write method for tty device file + * @file: tty file pointer + * @buf: user data to write + * @count: bytes to write + * @ppos: unused + * + * Write data to a tty device via the line discipline. + * + * Locking: + * Locks the line discipline as required + * Writes to the tty driver are serialized by the atomic_write_lock + * and are then processed in chunks to the device. The line discipline + * write method will not be involked in parallel for each device + * The line discipline write method is called under the big + * kernel lock for historical reasons. New code should not rely on this. + */ + static ssize_t tty_write(struct file * file, const char __user * buf, size_t count, loff_t *ppos) { @@ -1422,7 +1729,18 @@ ssize_t redirected_tty_write(struct file * file, const char __user * buf, size_t static char ptychar[] = "pqrstuvwxyzabcde"; -static inline void pty_line_name(struct tty_driver *driver, int index, char *p) +/** + * pty_line_name - generate name for a pty + * @driver: the tty driver in use + * @index: the minor number + * @p: output buffer of at least 6 bytes + * + * Generate a name from a driver reference and write it to the output + * buffer. + * + * Locking: None + */ +static void pty_line_name(struct tty_driver *driver, int index, char *p) { int i = index + driver->name_base; /* ->name is initialized to "ttyp", but "tty" is expected */ @@ -1431,24 +1749,53 @@ static inline void pty_line_name(struct tty_driver *driver, int index, char *p) ptychar[i >> 4 & 0xf], i & 0xf); } -static inline void tty_line_name(struct tty_driver *driver, int index, char *p) +/** + * pty_line_name - generate name for a tty + * @driver: the tty driver in use + * @index: the minor number + * @p: output buffer of at least 7 bytes + * + * Generate a name from a driver reference and write it to the output + * buffer. + * + * Locking: None + */ +static void tty_line_name(struct tty_driver *driver, int index, char *p) { sprintf(p, "%s%d", driver->name, index + driver->name_base); } -/* +/** + * init_dev - initialise a tty device + * @driver: tty driver we are opening a device on + * @idx: device index + * @tty: returned tty structure + * + * Prepare a tty device. This may not be a "new" clean device but + * could also be an active device. The pty drivers require special + * handling because of this. + * + * Locking: + * The function is called under the tty_mutex, which + * protects us from the tty struct or driver itself going away. + * + * On exit the tty device has the line discipline attached and + * a reference count of 1. If a pair was created for pty/tty use + * and the other was a pty master then it too has a reference count of 1. + * * WSH 06/09/97: Rewritten to remove races and properly clean up after a * failed open. The new code protects the open with a mutex, so it's * really quite straightforward. The mutex locking can probably be * relaxed for the (most common) case of reopening a tty. */ + static int init_dev(struct tty_driver *driver, int idx, struct tty_struct **ret_tty) { struct tty_struct *tty, *o_tty; struct termios *tp, **tp_loc, *o_tp, **o_tp_loc; struct termios *ltp, **ltp_loc, *o_ltp, **o_ltp_loc; - int retval=0; + int retval = 0; /* check whether we're reopening an existing tty */ if (driver->flags & TTY_DRIVER_DEVPTS_MEM) { @@ -1662,10 +2009,20 @@ release_mem_out: goto end_init; } -/* - * Releases memory associated with a tty structure, and clears out the - * driver table slots. +/** + * release_mem - release tty structure memory + * + * Releases memory associated with a tty structure, and clears out the + * driver table slots. This function is called when a device is no longer + * in use. It also gets called when setup of a device fails. + * + * Locking: + * tty_mutex - sometimes only + * takes the file list lock internally when working on the list + * of ttys that the driver keeps. + * FIXME: should we require tty_mutex is held here ?? */ + static void release_mem(struct tty_struct *tty, int idx) { struct tty_struct *o_tty; @@ -2006,18 +2363,27 @@ static void release_dev(struct file * filp) } -/* - * tty_open and tty_release keep up the tty count that contains the - * number of opens done on a tty. We cannot use the inode-count, as - * different inodes might point to the same tty. +/** + * tty_open - open a tty device + * @inode: inode of device file + * @filp: file pointer to tty * - * Open-counting is needed for pty masters, as well as for keeping - * track of serial lines: DTR is dropped when the last close happens. - * (This is not done solely through tty->count, now. - Ted 1/27/92) + * tty_open and tty_release keep up the tty count that contains the + * number of opens done on a tty. We cannot use the inode-count, as + * different inodes might point to the same tty. * - * The termios state of a pty is reset on first open so that - * settings don't persist across reuse. + * Open-counting is needed for pty masters, as well as for keeping + * track of serial lines: DTR is dropped when the last close happens. + * (This is not done solely through tty->count, now. - Ted 1/27/92) + * + * The termios state of a pty is reset on first open so that + * settings don't persist across reuse. + * + * Locking: tty_mutex protects current->signal->tty, get_tty_driver and + * init_dev work. tty->count should protect the rest. + * task_lock is held to update task details for sessions */ + static int tty_open(struct inode * inode, struct file * filp) { struct tty_struct *tty; @@ -2132,6 +2498,18 @@ got_driver: } #ifdef CONFIG_UNIX98_PTYS +/** + * ptmx_open - open a unix 98 pty master + * @inode: inode of device file + * @filp: file pointer to tty + * + * Allocate a unix98 pty master device from the ptmx driver. + * + * Locking: tty_mutex protects theinit_dev work. tty->count should + protect the rest. + * allocated_ptys_lock handles the list of free pty numbers + */ + static int ptmx_open(struct inode * inode, struct file * filp) { struct tty_struct *tty; @@ -2191,6 +2569,18 @@ out: } #endif +/** + * tty_release - vfs callback for close + * @inode: inode of tty + * @filp: file pointer for handle to tty + * + * Called the last time each file handle is closed that references + * this tty. There may however be several such references. + * + * Locking: + * Takes bkl. See release_dev + */ + static int tty_release(struct inode * inode, struct file * filp) { lock_kernel(); @@ -2199,7 +2589,18 @@ static int tty_release(struct inode * inode, struct file * filp) return 0; } -/* No kernel lock held - fine */ +/** + * tty_poll - check tty status + * @filp: file being polled + * @wait: poll wait structures to update + * + * Call the line discipline polling method to obtain the poll + * status of the device. + * + * Locking: locks called line discipline but ldisc poll method + * may be re-entered freely by other callers. + */ + static unsigned int tty_poll(struct file * filp, poll_table * wait) { struct tty_struct * tty; @@ -2243,6 +2644,21 @@ static int tty_fasync(int fd, struct file * filp, int on) return 0; } +/** + * tiocsti - fake input character + * @tty: tty to fake input into + * @p: pointer to character + * + * Fake input to a tty device. Does the neccessary locking and + * input management. + * + * FIXME: does not honour flow control ?? + * + * Locking: + * Called functions take tty_ldisc_lock + * current->signal->tty check is safe without locks + */ + static int tiocsti(struct tty_struct *tty, char __user *p) { char ch, mbz = 0; @@ -2258,6 +2674,18 @@ static int tiocsti(struct tty_struct *tty, char __user *p) return 0; } +/** + * tiocgwinsz - implement window query ioctl + * @tty; tty + * @arg: user buffer for result + * + * Copies the kernel idea of the window size into the user buffer. No + * locking is done. + * + * FIXME: Returning random values racing a window size set is wrong + * should lock here against that + */ + static int tiocgwinsz(struct tty_struct *tty, struct winsize __user * arg) { if (copy_to_user(arg, &tty->winsize, sizeof(*arg))) @@ -2265,6 +2693,24 @@ static int tiocgwinsz(struct tty_struct *tty, struct winsize __user * arg) return 0; } +/** + * tiocswinsz - implement window size set ioctl + * @tty; tty + * @arg: user buffer for result + * + * Copies the user idea of the window size to the kernel. Traditionally + * this is just advisory information but for the Linux console it + * actually has driver level meaning and triggers a VC resize. + * + * Locking: + * The console_sem is used to ensure we do not try and resize + * the console twice at once. + * FIXME: Two racing size sets may leave the console and kernel + * parameters disagreeing. Is this exploitable ? + * FIXME: Random values racing a window size get is wrong + * should lock here against that + */ + static int tiocswinsz(struct tty_struct *tty, struct tty_struct *real_tty, struct winsize __user * arg) { @@ -2294,6 +2740,15 @@ static int tiocswinsz(struct tty_struct *tty, struct tty_struct *real_tty, return 0; } +/** + * tioccons - allow admin to move logical console + * @file: the file to become console + * + * Allow the adminstrator to move the redirected console device + * + * Locking: uses redirect_lock to guard the redirect information + */ + static int tioccons(struct file *file) { if (!capable(CAP_SYS_ADMIN)) @@ -2319,6 +2774,17 @@ static int tioccons(struct file *file) return 0; } +/** + * fionbio - non blocking ioctl + * @file: file to set blocking value + * @p: user parameter + * + * Historical tty interfaces had a blocking control ioctl before + * the generic functionality existed. This piece of history is preserved + * in the expected tty API of posix OS's. + * + * Locking: none, the open fle handle ensures it won't go away. + */ static int fionbio(struct file *file, int __user *p) { @@ -2334,6 +2800,23 @@ static int fionbio(struct file *file, int __user *p) return 0; } +/** + * tiocsctty - set controlling tty + * @tty: tty structure + * @arg: user argument + * + * This ioctl is used to manage job control. It permits a session + * leader to set this tty as the controlling tty for the session. + * + * Locking: + * Takes tasklist lock internally to walk sessions + * Takes task_lock() when updating signal->tty + * + * FIXME: tty_mutex is needed to protect signal->tty references. + * FIXME: why task_lock on the signal->tty reference ?? + * + */ + static int tiocsctty(struct tty_struct *tty, int arg) { struct task_struct *p; @@ -2374,6 +2857,18 @@ static int tiocsctty(struct tty_struct *tty, int arg) return 0; } +/** + * tiocgpgrp - get process group + * @tty: tty passed by user + * @real_tty: tty side of the tty pased by the user if a pty else the tty + * @p: returned pid + * + * Obtain the process group of the tty. If there is no process group + * return an error. + * + * Locking: none. Reference to ->signal->tty is safe. + */ + static int tiocgpgrp(struct tty_struct *tty, struct tty_struct *real_tty, pid_t __user *p) { /* @@ -2385,6 +2880,20 @@ static int tiocgpgrp(struct tty_struct *tty, struct tty_struct *real_tty, pid_t return put_user(real_tty->pgrp, p); } +/** + * tiocspgrp - attempt to set process group + * @tty: tty passed by user + * @real_tty: tty side device matching tty passed by user + * @p: pid pointer + * + * Set the process group of the tty to the session passed. Only + * permitted where the tty session is our session. + * + * Locking: None + * + * FIXME: current->signal->tty referencing is unsafe. + */ + static int tiocspgrp(struct tty_struct *tty, struct tty_struct *real_tty, pid_t __user *p) { pid_t pgrp; @@ -2408,6 +2917,18 @@ static int tiocspgrp(struct tty_struct *tty, struct tty_struct *real_tty, pid_t return 0; } +/** + * tiocgsid - get session id + * @tty: tty passed by user + * @real_tty: tty side of the tty pased by the user if a pty else the tty + * @p: pointer to returned session id + * + * Obtain the session id of the tty. If there is no session + * return an error. + * + * Locking: none. Reference to ->signal->tty is safe. + */ + static int tiocgsid(struct tty_struct *tty, struct tty_struct *real_tty, pid_t __user *p) { /* @@ -2421,6 +2942,16 @@ static int tiocgsid(struct tty_struct *tty, struct tty_struct *real_tty, pid_t _ return put_user(real_tty->session, p); } +/** + * tiocsetd - set line discipline + * @tty: tty device + * @p: pointer to user data + * + * Set the line discipline according to user request. + * + * Locking: see tty_set_ldisc, this function is just a helper + */ + static int tiocsetd(struct tty_struct *tty, int __user *p) { int ldisc; @@ -2430,6 +2961,21 @@ static int tiocsetd(struct tty_struct *tty, int __user *p) return tty_set_ldisc(tty, ldisc); } +/** + * send_break - performed time break + * @tty: device to break on + * @duration: timeout in mS + * + * Perform a timed break on hardware that lacks its own driver level + * timed break functionality. + * + * Locking: + * None + * + * FIXME: + * What if two overlap + */ + static int send_break(struct tty_struct *tty, unsigned int duration) { tty->driver->break_ctl(tty, -1); @@ -2442,8 +2988,19 @@ static int send_break(struct tty_struct *tty, unsigned int duration) return 0; } -static int -tty_tiocmget(struct tty_struct *tty, struct file *file, int __user *p) +/** + * tiocmget - get modem status + * @tty: tty device + * @file: user file pointer + * @p: pointer to result + * + * Obtain the modem status bits from the tty driver if the feature + * is supported. Return -EINVAL if it is not available. + * + * Locking: none (up to the driver) + */ + +static int tty_tiocmget(struct tty_struct *tty, struct file *file, int __user *p) { int retval = -EINVAL; @@ -2456,8 +3013,20 @@ tty_tiocmget(struct tty_struct *tty, struct file *file, int __user *p) return retval; } -static int -tty_tiocmset(struct tty_struct *tty, struct file *file, unsigned int cmd, +/** + * tiocmset - set modem status + * @tty: tty device + * @file: user file pointer + * @cmd: command - clear bits, set bits or set all + * @p: pointer to desired bits + * + * Set the modem status bits from the tty driver if the feature + * is supported. Return -EINVAL if it is not available. + * + * Locking: none (up to the driver) + */ + +static int tty_tiocmset(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned __user *p) { int retval = -EINVAL; @@ -2573,6 +3142,7 @@ int tty_ioctl(struct inode * inode, struct file * file, clear_bit(TTY_EXCLUSIVE, &tty->flags); return 0; case TIOCNOTTY: + /* FIXME: taks lock or tty_mutex ? */ if (current->signal->tty != tty) return -ENOTTY; if (current->signal->leader) @@ -2753,9 +3323,16 @@ void do_SAK(struct tty_struct *tty) EXPORT_SYMBOL(do_SAK); -/* - * This routine is called out of the software interrupt to flush data - * from the buffer chain to the line discipline. +/** + * flush_to_ldisc + * @private_: tty structure passed from work queue. + * + * This routine is called out of the software interrupt to flush data + * from the buffer chain to the line discipline. + * + * Locking: holds tty->buf.lock to guard buffer list. Drops the lock + * while invoking the line discipline receive_buf method. The + * receive_buf method is single threaded for each tty instance. */ static void flush_to_ldisc(void *private_) @@ -2831,6 +3408,8 @@ static int n_baud_table = ARRAY_SIZE(baud_table); * Convert termios baud rate data into a speed. This should be called * with the termios lock held if this termios is a terminal termios * structure. May change the termios data. + * + * Locking: none */ int tty_termios_baud_rate(struct termios *termios) @@ -2859,6 +3438,8 @@ EXPORT_SYMBOL(tty_termios_baud_rate); * Returns the baud rate as an integer for this terminal. The * termios lock must be held by the caller and the terminal bit * flags may be updated. + * + * Locking: none */ int tty_get_baud_rate(struct tty_struct *tty) @@ -2888,6 +3469,8 @@ EXPORT_SYMBOL(tty_get_baud_rate); * * In the event of the queue being busy for flipping the work will be * held off and retried later. + * + * Locking: tty buffer lock. Driver locks in low latency mode. */ void tty_flip_buffer_push(struct tty_struct *tty) @@ -2907,9 +3490,16 @@ void tty_flip_buffer_push(struct tty_struct *tty) EXPORT_SYMBOL(tty_flip_buffer_push); -/* - * This subroutine initializes a tty structure. +/** + * initialize_tty_struct + * @tty: tty to initialize + * + * This subroutine initializes a tty structure that has been newly + * allocated. + * + * Locking: none - tty in question must not be exposed at this point */ + static void initialize_tty_struct(struct tty_struct *tty) { memset(tty, 0, sizeof(struct tty_struct)); @@ -2935,6 +3525,7 @@ static void initialize_tty_struct(struct tty_struct *tty) /* * The default put_char routine if the driver did not define one. */ + static void tty_default_put_char(struct tty_struct *tty, unsigned char ch) { tty->driver->write(tty, &ch, 1); @@ -2943,19 +3534,23 @@ static void tty_default_put_char(struct tty_struct *tty, unsigned char ch) static struct class *tty_class; /** - * tty_register_device - register a tty device - * @driver: the tty driver that describes the tty device - * @index: the index in the tty driver for this tty device - * @device: a struct device that is associated with this tty device. - * This field is optional, if there is no known struct device for this - * tty device it can be set to NULL safely. + * tty_register_device - register a tty device + * @driver: the tty driver that describes the tty device + * @index: the index in the tty driver for this tty device + * @device: a struct device that is associated with this tty device. + * This field is optional, if there is no known struct device + * for this tty device it can be set to NULL safely. * - * Returns a pointer to the class device (or ERR_PTR(-EFOO) on error). + * Returns a pointer to the class device (or ERR_PTR(-EFOO) on error). * - * This call is required to be made to register an individual tty device if - * the tty driver's flags have the TTY_DRIVER_DYNAMIC_DEV bit set. If that - * bit is not set, this function should not be called by a tty driver. + * This call is required to be made to register an individual tty device + * if the tty driver's flags have the TTY_DRIVER_DYNAMIC_DEV bit set. If + * that bit is not set, this function should not be called by a tty + * driver. + * + * Locking: ?? */ + struct class_device *tty_register_device(struct tty_driver *driver, unsigned index, struct device *device) { @@ -2977,13 +3572,16 @@ struct class_device *tty_register_device(struct tty_driver *driver, } /** - * tty_unregister_device - unregister a tty device - * @driver: the tty driver that describes the tty device - * @index: the index in the tty driver for this tty device + * tty_unregister_device - unregister a tty device + * @driver: the tty driver that describes the tty device + * @index: the index in the tty driver for this tty device * - * If a tty device is registered with a call to tty_register_device() then - * this function must be made when the tty device is gone. + * If a tty device is registered with a call to tty_register_device() then + * this function must be called when the tty device is gone. + * + * Locking: ?? */ + void tty_unregister_device(struct tty_driver *driver, unsigned index) { class_device_destroy(tty_class, MKDEV(driver->major, driver->minor_start) + index); diff --git a/drivers/char/tty_ioctl.c b/drivers/char/tty_ioctl.c index f19cf9d7792d..4ad47d321bd4 100644 --- a/drivers/char/tty_ioctl.c +++ b/drivers/char/tty_ioctl.c @@ -36,6 +36,18 @@ #define TERMIOS_WAIT 2 #define TERMIOS_TERMIO 4 + +/** + * tty_wait_until_sent - wait for I/O to finish + * @tty: tty we are waiting for + * @timeout: how long we will wait + * + * Wait for characters pending in a tty driver to hit the wire, or + * for a timeout to occur (eg due to flow control) + * + * Locking: none + */ + void tty_wait_until_sent(struct tty_struct * tty, long timeout) { DECLARE_WAITQUEUE(wait, current); @@ -94,6 +106,18 @@ static void unset_locked_termios(struct termios *termios, old->c_cc[i] : termios->c_cc[i]; } +/** + * change_termios - update termios values + * @tty: tty to update + * @new_termios: desired new value + * + * Perform updates to the termios values set on this terminal. There + * is a bit of layering violation here with n_tty in terms of the + * internal knowledge of this function. + * + * Locking: termios_sem + */ + static void change_termios(struct tty_struct * tty, struct termios * new_termios) { int canon_change; @@ -155,6 +179,19 @@ static void change_termios(struct tty_struct * tty, struct termios * new_termios up(&tty->termios_sem); } +/** + * set_termios - set termios values for a tty + * @tty: terminal device + * @arg: user data + * @opt: option information + * + * Helper function to prepare termios data and run neccessary other + * functions before using change_termios to do the actual changes. + * + * Locking: + * Called functions take ldisc and termios_sem locks + */ + static int set_termios(struct tty_struct * tty, void __user *arg, int opt) { struct termios tmp_termios; @@ -284,6 +321,17 @@ static void set_sgflags(struct termios * termios, int flags) } } +/** + * set_sgttyb - set legacy terminal values + * @tty: tty structure + * @sgttyb: pointer to old style terminal structure + * + * Updates a terminal from the legacy BSD style terminal information + * structure. + * + * Locking: termios_sem + */ + static int set_sgttyb(struct tty_struct * tty, struct sgttyb __user * sgttyb) { int retval; @@ -369,9 +417,16 @@ static int set_ltchars(struct tty_struct * tty, struct ltchars __user * ltchars) } #endif -/* - * Send a high priority character to the tty. +/** + * send_prio_char - send priority character + * + * Send a high priority character to the tty even if stopped + * + * Locking: none + * + * FIXME: overlapping calls with start/stop tty lose state of tty */ + static void send_prio_char(struct tty_struct *tty, char ch) { int was_stopped = tty->stopped; From 01da5fd83d6b2c5e36b77539f6cbdd8f49849225 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Sun, 27 Aug 2006 01:24:02 -0700 Subject: [PATCH 383/488] [PATCH] Fix tty layer DoS and comment relevant code Unlike the other tty comment patch this one has code changes. Specifically it limits the queue size for a tty to 64K characters (128Kbytes) worst case even if the tty is ignoring tty->throttle. This is because certain drivers don't honour the throttle value correctly, although it is a useful safeguard anyway. Signed-off-by: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/tty_io.c | 89 ++++++++++++++++++++++++++++++++++++++----- include/linux/tty.h | 1 + 2 files changed, 80 insertions(+), 10 deletions(-) diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c index 2cef982585f0..bb0d9199e994 100644 --- a/drivers/char/tty_io.c +++ b/drivers/char/tty_io.c @@ -265,6 +265,17 @@ static int check_tty_count(struct tty_struct *tty, const char *routine) */ +/** + * tty_buffer_free_all - free buffers used by a tty + * @tty: tty to free from + * + * Remove all the buffers pending on a tty whether queued with data + * or in the free ring. Must be called when the tty is no longer in use + * + * Locking: none + */ + + /** * tty_buffer_free_all - free buffers used by a tty * @tty: tty to free from @@ -287,19 +298,47 @@ static void tty_buffer_free_all(struct tty_struct *tty) kfree(thead); } tty->buf.tail = NULL; + tty->buf.memory_used = 0; } +/** + * tty_buffer_init - prepare a tty buffer structure + * @tty: tty to initialise + * + * Set up the initial state of the buffer management for a tty device. + * Must be called before the other tty buffer functions are used. + * + * Locking: none + */ + static void tty_buffer_init(struct tty_struct *tty) { spin_lock_init(&tty->buf.lock); tty->buf.head = NULL; tty->buf.tail = NULL; tty->buf.free = NULL; + tty->buf.memory_used = 0; } -static struct tty_buffer *tty_buffer_alloc(size_t size) +/** + * tty_buffer_alloc - allocate a tty buffer + * @tty: tty device + * @size: desired size (characters) + * + * Allocate a new tty buffer to hold the desired number of characters. + * Return NULL if out of memory or the allocation would exceed the + * per device queue + * + * Locking: Caller must hold tty->buf.lock + */ + +static struct tty_buffer *tty_buffer_alloc(struct tty_struct *tty, size_t size) { - struct tty_buffer *p = kmalloc(sizeof(struct tty_buffer) + 2 * size, GFP_ATOMIC); + struct tty_buffer *p; + + if (tty->buf.memory_used + size > 65536) + return NULL; + p = kmalloc(sizeof(struct tty_buffer) + 2 * size, GFP_ATOMIC); if(p == NULL) return NULL; p->used = 0; @@ -309,17 +348,27 @@ static struct tty_buffer *tty_buffer_alloc(size_t size) p->read = 0; p->char_buf_ptr = (char *)(p->data); p->flag_buf_ptr = (unsigned char *)p->char_buf_ptr + size; -/* printk("Flip create %p\n", p); */ + tty->buf.memory_used += size; return p; } -/* Must be called with the tty_read lock held. This needs to acquire strategy - code to decide if we should kfree or relink a given expired buffer */ +/** + * tty_buffer_free - free a tty buffer + * @tty: tty owning the buffer + * @b: the buffer to free + * + * Free a tty buffer, or add it to the free list according to our + * internal strategy + * + * Locking: Caller must hold tty->buf.lock + */ static void tty_buffer_free(struct tty_struct *tty, struct tty_buffer *b) { /* Dumb strategy for now - should keep some stats */ -/* printk("Flip dispose %p\n", b); */ + tty->buf.memory_used -= b->size; + WARN_ON(tty->buf.memory_used < 0); + if(b->size >= 512) kfree(b); else { @@ -328,6 +377,18 @@ static void tty_buffer_free(struct tty_struct *tty, struct tty_buffer *b) } } +/** + * tty_buffer_find - find a free tty buffer + * @tty: tty owning the buffer + * @size: characters wanted + * + * Locate an existing suitable tty buffer or if we are lacking one then + * allocate a new one. We round our buffers off in 256 character chunks + * to get better allocation behaviour. + * + * Locking: Caller must hold tty->buf.lock + */ + static struct tty_buffer *tty_buffer_find(struct tty_struct *tty, size_t size) { struct tty_buffer **tbh = &tty->buf.free; @@ -339,20 +400,28 @@ static struct tty_buffer *tty_buffer_find(struct tty_struct *tty, size_t size) t->used = 0; t->commit = 0; t->read = 0; - /* DEBUG ONLY */ -/* memset(t->data, '*', size); */ -/* printk("Flip recycle %p\n", t); */ + tty->buf.memory_used += t->size; return t; } tbh = &((*tbh)->next); } /* Round the buffer size out */ size = (size + 0xFF) & ~ 0xFF; - return tty_buffer_alloc(size); + return tty_buffer_alloc(tty, size); /* Should possibly check if this fails for the largest buffer we have queued and recycle that ? */ } +/** + * tty_buffer_request_room - grow tty buffer if needed + * @tty: tty structure + * @size: size desired + * + * Make at least size bytes of linear space available for the tty + * buffer. If we fail return the size we managed to find. + * + * Locking: Takes tty->buf.lock + */ int tty_buffer_request_room(struct tty_struct *tty, size_t size) { struct tty_buffer *b, *n; diff --git a/include/linux/tty.h b/include/linux/tty.h index e421d5e34818..04827ca65781 100644 --- a/include/linux/tty.h +++ b/include/linux/tty.h @@ -59,6 +59,7 @@ struct tty_bufhead { struct tty_buffer *head; /* Queue head */ struct tty_buffer *tail; /* Active buffer */ struct tty_buffer *free; /* Free queue head */ + int memory_used; /* Buffer space used excluding free queue */ }; /* * The pty uses char_buf and flag_buf as a contiguous buffer From 60d4684068ff1eec78f55b5888d0bd2d4cca1520 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 27 Aug 2006 20:41:48 -0700 Subject: [PATCH 384/488] Linux v2.6.18-rc5 --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index 8406d02c6385..33559b566449 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 2 PATCHLEVEL = 6 SUBLEVEL = 18 -EXTRAVERSION = -rc4 +EXTRAVERSION = -rc5 NAME=Crazed Snow-Weasel # *DOCUMENTATION* From 7034b0e60a2ccfab4ee2d3a468cb8cad6de3740d Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 28 Aug 2006 12:44:03 +0100 Subject: [PATCH 385/488] [ARM] Arrange for isa.c to use named initialisers Convert isa.c (the glibc interface for emulating ISA IO) to use named initialisers. Signed-off-by: Russell King --- arch/arm/kernel/isa.c | 63 ++++++++++++++++++++++++++++--------------- 1 file changed, 42 insertions(+), 21 deletions(-) diff --git a/arch/arm/kernel/isa.c b/arch/arm/kernel/isa.c index 685c3e591a7e..54bbd9fe255c 100644 --- a/arch/arm/kernel/isa.c +++ b/arch/arm/kernel/isa.c @@ -3,21 +3,14 @@ * * Copyright (C) 1999 Phil Blundell * - * ISA shared memory and I/O port support - */ - -/* * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. + * + * ISA shared memory and I/O port support, and is required to support + * iopl, inb, outb and friends in userspace via glibc emulation. */ - -/* - * Nothing about this is actually ARM specific. One day we could move - * it into kernel/resource.c or some place like that. - */ - #include #include #include @@ -27,21 +20,49 @@ static unsigned int isa_membase, isa_portbase, isa_portshift; static ctl_table ctl_isa_vars[4] = { - {BUS_ISA_MEM_BASE, "membase", &isa_membase, - sizeof(isa_membase), 0444, NULL, &proc_dointvec}, - {BUS_ISA_PORT_BASE, "portbase", &isa_portbase, - sizeof(isa_portbase), 0444, NULL, &proc_dointvec}, - {BUS_ISA_PORT_SHIFT, "portshift", &isa_portshift, - sizeof(isa_portshift), 0444, NULL, &proc_dointvec}, - {0} + { + .ctl_name = BUS_ISA_MEM_BASE, + .procname = "membase", + .data = &isa_membase, + .maxlen = sizeof(isa_membase), + .mode = 0444, + .proc_handler = &proc_dointvec, + }, { + .ctl_name = BUS_ISA_PORT_BASE, + .procname = "portbase", + .data = &isa_portbase, + .maxlen = sizeof(isa_portbase), + .mode = 0444, + .proc_handler = &proc_dointvec, + }, { + .ctl_name = BUS_ISA_PORT_SHIFT, + .procname = "portshift", + .data = &isa_portshift, + .maxlen = sizeof(isa_portshift), + .mode = 0444, + .proc_handler = &proc_dointvec, + }, {0} }; static struct ctl_table_header *isa_sysctl_header; -static ctl_table ctl_isa[2] = {{CTL_BUS_ISA, "isa", NULL, 0, 0555, ctl_isa_vars}, - {0}}; -static ctl_table ctl_bus[2] = {{CTL_BUS, "bus", NULL, 0, 0555, ctl_isa}, - {0}}; +static ctl_table ctl_isa[2] = { + { + .ctl_name = CTL_BUS_ISA, + .procname = "isa", + .mode = 0555, + .child = ctl_isa_vars, + }, {0} +}; + +static ctl_table ctl_bus[2] = { + { + .ctl_name = CTL_BUS, + .procname = "bus", + .mode = 0555, + .child = ctl_isa, + }, {0} +}; void __init register_isa_ports(unsigned int membase, unsigned int portbase, unsigned int portshift) From 1645f20bc4440d6f67f73f570f3cf873b4e37f3c Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 28 Aug 2006 12:45:16 +0100 Subject: [PATCH 386/488] [ARM] Move prototype for register_isa_ports to asm/io.h Signed-off-by: Russell King --- arch/arm/mach-footbridge/dc21285.c | 1 - include/asm-arm/io.h | 7 +++++++ 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-footbridge/dc21285.c b/arch/arm/mach-footbridge/dc21285.c index 607ed1f5b3f8..823e25d4547e 100644 --- a/arch/arm/mach-footbridge/dc21285.c +++ b/arch/arm/mach-footbridge/dc21285.c @@ -35,7 +35,6 @@ extern int setup_arm_irq(int, struct irqaction *); extern void pcibios_report_status(u_int status_mask, int warn); -extern void register_isa_ports(unsigned int, unsigned int, unsigned int); static unsigned long dc21285_base_address(struct pci_bus *bus, unsigned int devfn) diff --git a/include/asm-arm/io.h b/include/asm-arm/io.h index b3479fc1cc8f..bf7b9dea30f1 100644 --- a/include/asm-arm/io.h +++ b/include/asm-arm/io.h @@ -291,5 +291,12 @@ extern void pci_iounmap(struct pci_dev *dev, void __iomem *addr); */ #define xlate_dev_kmem_ptr(p) p +/* + * Register ISA memory and port locations for glibc iopl/inb/outb + * emulation. + */ +extern void register_isa_ports(unsigned int mmio, unsigned int io, + unsigned int io_shift); + #endif /* __KERNEL__ */ #endif /* __ASM_ARM_IO_H */ From 863dab453b869136453944bda63e20b6ed39c5ef Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 28 Aug 2006 12:47:05 +0100 Subject: [PATCH 387/488] [ARM] Add Integrator support for glibc outb() and friends Add the necessary call to register_isa_ports() so that glibc knows where these are found on Integrator platforms. Signed-off-by: Russell King --- arch/arm/kernel/Makefile | 3 +-- arch/arm/mach-integrator/pci_v3.c | 2 ++ 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/arm/kernel/Makefile b/arch/arm/kernel/Makefile index f0c0cdb1c183..1320a0efca73 100644 --- a/arch/arm/kernel/Makefile +++ b/arch/arm/kernel/Makefile @@ -13,12 +13,11 @@ obj-y := compat.o entry-armv.o entry-common.o irq.o \ obj-$(CONFIG_APM) += apm.o obj-$(CONFIG_ISA_DMA_API) += dma.o obj-$(CONFIG_ARCH_ACORN) += ecard.o -obj-$(CONFIG_FOOTBRIDGE) += isa.o obj-$(CONFIG_FIQ) += fiq.o obj-$(CONFIG_MODULES) += armksyms.o module.o obj-$(CONFIG_ARTHUR) += arthur.o obj-$(CONFIG_ISA_DMA) += dma-isa.o -obj-$(CONFIG_PCI) += bios32.o +obj-$(CONFIG_PCI) += bios32.o isa.o obj-$(CONFIG_SMP) += smp.o obj-$(CONFIG_OABI_COMPAT) += sys_oabi-compat.o diff --git a/arch/arm/mach-integrator/pci_v3.c b/arch/arm/mach-integrator/pci_v3.c index f9043592e299..4418f6d7572d 100644 --- a/arch/arm/mach-integrator/pci_v3.c +++ b/arch/arm/mach-integrator/pci_v3.c @@ -600,4 +600,6 @@ void __init pci_v3_postinit(void) printk(KERN_ERR "PCI: unable to grab local bus timeout " "interrupt: %d\n", ret); #endif + + register_isa_ports(PHYS_PCI_MEM_BASE, PHYS_PCI_IO_BASE, 0); } From 260e98edc8ae8ea862c9c222eeffb1a2eeafa7fc Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Mon, 28 Aug 2006 12:51:20 +0100 Subject: [PATCH 388/488] [ARM] 3761/1: fix armv4t breakage after adding thumb interworking to userspace helpers Patch from Lennert Buytenhek On armv4t systems, we have always compiled the kernel with -march=armv4 instead of -march=armv4t, which means that any use of bx will bomb out. Commit ba9b5d76372dc290b6ca04dad93927a22c2ac49a introduced the use of bx in the kernel, which means we need to compile with -march=armv4t on armv4t systems now. Signed-off-by: Lennert Buytenhek Signed-off-by: Russell King --- arch/arm/Makefile | 3 ++- arch/arm/mm/Kconfig | 13 +++++++++---- 2 files changed, 11 insertions(+), 5 deletions(-) diff --git a/arch/arm/Makefile b/arch/arm/Makefile index 3345c6d0fd1e..92873cdee31f 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -47,7 +47,8 @@ comma = , # testing for a specific architecture or later rather impossible. arch-$(CONFIG_CPU_32v6) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6) arch-$(CONFIG_CPU_32v6K) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k) -arch-$(CONFIG_CPU_32v5) :=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4) +arch-$(CONFIG_CPU_32v5) :=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t) +arch-$(CONFIG_CPU_32v4T) :=-D__LINUX_ARM_ARCH__=4 -march=armv4t arch-$(CONFIG_CPU_32v4) :=-D__LINUX_ARM_ARCH__=4 -march=armv4 arch-$(CONFIG_CPU_32v3) :=-D__LINUX_ARM_ARCH__=3 -march=armv3 diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig index 5f80f184cd32..b4f220dd5eb8 100644 --- a/arch/arm/mm/Kconfig +++ b/arch/arm/mm/Kconfig @@ -46,7 +46,7 @@ config CPU_ARM710 config CPU_ARM720T bool "Support ARM720T processor" if !ARCH_CLPS711X && !ARCH_L7200 && !ARCH_CDB89712 && ARCH_INTEGRATOR default y if ARCH_CLPS711X || ARCH_L7200 || ARCH_CDB89712 || ARCH_H720X - select CPU_32v4 + select CPU_32v4T select CPU_ABRT_LV4T select CPU_CACHE_V4 select CPU_CACHE_VIVT @@ -64,7 +64,7 @@ config CPU_ARM920T bool "Support ARM920T processor" depends on ARCH_EP93XX || ARCH_INTEGRATOR || CPU_S3C2410 || CPU_S3C2440 || CPU_S3C2442 || ARCH_IMX || ARCH_AAEC2000 || ARCH_AT91RM9200 default y if CPU_S3C2410 || CPU_S3C2440 || CPU_S3C2442 || ARCH_AT91RM9200 - select CPU_32v4 + select CPU_32v4T select CPU_ABRT_EV4T select CPU_CACHE_V4WT select CPU_CACHE_VIVT @@ -85,7 +85,7 @@ config CPU_ARM922T bool "Support ARM922T processor" if ARCH_INTEGRATOR depends on ARCH_LH7A40X || ARCH_INTEGRATOR default y if ARCH_LH7A40X - select CPU_32v4 + select CPU_32v4T select CPU_ABRT_EV4T select CPU_CACHE_V4WT select CPU_CACHE_VIVT @@ -104,7 +104,7 @@ config CPU_ARM925T bool "Support ARM925T processor" if ARCH_OMAP1 depends on ARCH_OMAP15XX default y if ARCH_OMAP15XX - select CPU_32v4 + select CPU_32v4T select CPU_ABRT_EV4T select CPU_CACHE_V4WT select CPU_CACHE_VIVT @@ -285,6 +285,11 @@ config CPU_32v4 select TLS_REG_EMUL if SMP || !MMU select NEEDS_SYSCALL_FOR_CMPXCHG if SMP +config CPU_32v4T + bool + select TLS_REG_EMUL if SMP || !MMU + select NEEDS_SYSCALL_FOR_CMPXCHG if SMP + config CPU_32v5 bool select TLS_REG_EMUL if SMP || !MMU From 986e12fa74c837d7fe5bdfe80666e2e2d46711bd Mon Sep 17 00:00:00 2001 From: Russ Anderson Date: Thu, 24 Aug 2006 11:08:52 -0500 Subject: [PATCH 389/488] [IA64] remove redundant local_irq_save() calls from sn_sal.h sn_change_memprotect() does a local_irq_save() then calls ia64_sal_oemcall_nolock() which calls SAL_CALL_NOLOCK() which also does a local_irq_save(). This patch removes the redundant local_irq_save() and local_irq_restore() calls in sn_change_memprotect() and sn_inject_error(). Signed-off-by: Russ Anderson Signed-off-by: Tony Luck --- include/asm-ia64/sn/sn_sal.h | 6 ------ 1 file changed, 6 deletions(-) diff --git a/include/asm-ia64/sn/sn_sal.h b/include/asm-ia64/sn/sn_sal.h index bd4452bda357..ba826b3f75bb 100644 --- a/include/asm-ia64/sn/sn_sal.h +++ b/include/asm-ia64/sn/sn_sal.h @@ -706,12 +706,9 @@ static inline int sn_change_memprotect(u64 paddr, u64 len, u64 perms, u64 *nasid_array) { struct ia64_sal_retval ret_stuff; - unsigned long irq_flags; - local_irq_save(irq_flags); ia64_sal_oemcall_nolock(&ret_stuff, SN_SAL_MEMPROTECT, paddr, len, (u64)nasid_array, perms, 0, 0, 0); - local_irq_restore(irq_flags); return ret_stuff.status; } #define SN_MEMPROT_ACCESS_CLASS_0 0x14a080 @@ -1143,12 +1140,9 @@ static inline int sn_inject_error(u64 paddr, u64 *data, u64 *ecc) { struct ia64_sal_retval ret_stuff; - unsigned long irq_flags; - local_irq_save(irq_flags); ia64_sal_oemcall_nolock(&ret_stuff, SN_SAL_INJECT_ERROR, paddr, (u64)data, (u64)ecc, 0, 0, 0, 0); - local_irq_restore(irq_flags); return ret_stuff.status; } From c57d68caeed7bc335e6d35c951a9abae733a580b Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Tue, 22 Aug 2006 19:43:27 -0700 Subject: [PATCH 390/488] [IA64] Increase default nodes shift to 10, nr_cpus to 1024 Change both the NODES_SHIFT and the NR_CPUS so that even big machines can boot all nodes and processors with a generic kernel. Signed-off-by: Christoph Lameter Signed-off-by: Tony Luck --- arch/ia64/Kconfig | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index 47de9ee6bcd6..674de8943478 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -258,7 +258,7 @@ config NR_CPUS int "Maximum number of CPUs (2-1024)" range 2 1024 depends on SMP - default "64" + default "1024" help You should set this to the number of CPUs in your system, but keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but @@ -354,7 +354,7 @@ config NUMA config NODES_SHIFT int "Max num nodes shift(3-10)" range 3 10 - default "8" + default "10" depends on NEED_MULTIPLE_NODES help This option specifies the maximum number of nodes in your SSI system. From bf4152dd7ccb6c060d786200a893dfe30193a07f Mon Sep 17 00:00:00 2001 From: Kim Phillips Date: Fri, 25 Aug 2006 11:58:53 -0500 Subject: [PATCH 391/488] [POWERPC] back up old school ipic.[hc] to arch/ppc Keep from breaking 83xx arch/ppc build. Back up old school arch/powerpc/sysdev/ipic.[hc] to arch/ppc/syslib. Signed-off-by: Kim Phillips Signed-off-by: Paul Mackerras --- arch/powerpc/sysdev/Makefile | 4 +- arch/ppc/syslib/Makefile | 2 +- arch/ppc/syslib/ipic.c | 646 +++++++++++++++++++++++++++++++++++ arch/ppc/syslib/ipic.h | 47 +++ include/asm-powerpc/ipic.h | 12 +- 5 files changed, 705 insertions(+), 6 deletions(-) create mode 100644 arch/ppc/syslib/ipic.c create mode 100644 arch/ppc/syslib/ipic.h diff --git a/arch/powerpc/sysdev/Makefile b/arch/powerpc/sysdev/Makefile index cebfae242602..e5e999ea891a 100644 --- a/arch/powerpc/sysdev/Makefile +++ b/arch/powerpc/sysdev/Makefile @@ -9,11 +9,11 @@ obj-$(CONFIG_BOOKE) += dcr.o obj-$(CONFIG_40x) += dcr.o obj-$(CONFIG_U3_DART) += dart_iommu.o obj-$(CONFIG_MMIO_NVRAM) += mmio_nvram.o -obj-$(CONFIG_PPC_83xx) += ipic.o obj-$(CONFIG_FSL_SOC) += fsl_soc.o obj-$(CONFIG_PPC_TODC) += todc.o obj-$(CONFIG_TSI108_BRIDGE) += tsi108_pci.o tsi108_dev.o ifeq ($(CONFIG_PPC_MERGE),y) obj-$(CONFIG_PPC_I8259) += i8259.o - endif +obj-$(CONFIG_PPC_83xx) += ipic.o +endif diff --git a/arch/ppc/syslib/Makefile b/arch/ppc/syslib/Makefile index 2497bbc07e76..dca23f2ef851 100644 --- a/arch/ppc/syslib/Makefile +++ b/arch/ppc/syslib/Makefile @@ -93,7 +93,7 @@ obj-$(CONFIG_PCI) += pci_auto.o endif obj-$(CONFIG_RAPIDIO) += ppc85xx_rio.o obj-$(CONFIG_83xx) += ppc83xx_setup.o ppc_sys.o \ - mpc83xx_sys.o mpc83xx_devices.o + mpc83xx_sys.o mpc83xx_devices.o ipic.o ifeq ($(CONFIG_83xx),y) obj-$(CONFIG_PCI) += pci_auto.o endif diff --git a/arch/ppc/syslib/ipic.c b/arch/ppc/syslib/ipic.c new file mode 100644 index 000000000000..46801f5ec03f --- /dev/null +++ b/arch/ppc/syslib/ipic.c @@ -0,0 +1,646 @@ +/* + * include/asm-ppc/ipic.c + * + * IPIC routines implementations. + * + * Copyright 2005 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "ipic.h" + +static struct ipic p_ipic; +static struct ipic * primary_ipic; + +static struct ipic_info ipic_info[] = { + [9] = { + .pend = IPIC_SIPNR_H, + .mask = IPIC_SIMSR_H, + .prio = IPIC_SIPRR_D, + .force = IPIC_SIFCR_H, + .bit = 24, + .prio_mask = 0, + }, + [10] = { + .pend = IPIC_SIPNR_H, + .mask = IPIC_SIMSR_H, + .prio = IPIC_SIPRR_D, + .force = IPIC_SIFCR_H, + .bit = 25, + .prio_mask = 1, + }, + [11] = { + .pend = IPIC_SIPNR_H, + .mask = IPIC_SIMSR_H, + .prio = IPIC_SIPRR_D, + .force = IPIC_SIFCR_H, + .bit = 26, + .prio_mask = 2, + }, + [14] = { + .pend = IPIC_SIPNR_H, + .mask = IPIC_SIMSR_H, + .prio = IPIC_SIPRR_D, + .force = IPIC_SIFCR_H, + .bit = 29, + .prio_mask = 5, + }, + [15] = { + .pend = IPIC_SIPNR_H, + .mask = IPIC_SIMSR_H, + .prio = IPIC_SIPRR_D, + .force = IPIC_SIFCR_H, + .bit = 30, + .prio_mask = 6, + }, + [16] = { + .pend = IPIC_SIPNR_H, + .mask = IPIC_SIMSR_H, + .prio = IPIC_SIPRR_D, + .force = IPIC_SIFCR_H, + .bit = 31, + .prio_mask = 7, + }, + [17] = { + .pend = IPIC_SEPNR, + .mask = IPIC_SEMSR, + .prio = IPIC_SMPRR_A, + .force = IPIC_SEFCR, + .bit = 1, + .prio_mask = 5, + }, + [18] = { + .pend = IPIC_SEPNR, + .mask = IPIC_SEMSR, + .prio = IPIC_SMPRR_A, + .force = IPIC_SEFCR, + .bit = 2, + .prio_mask = 6, + }, + [19] = { + .pend = IPIC_SEPNR, + .mask = IPIC_SEMSR, + .prio = IPIC_SMPRR_A, + .force = IPIC_SEFCR, + .bit = 3, + .prio_mask = 7, + }, + [20] = { + .pend = IPIC_SEPNR, + .mask = IPIC_SEMSR, + .prio = IPIC_SMPRR_B, + .force = IPIC_SEFCR, + .bit = 4, + .prio_mask = 4, + }, + [21] = { + .pend = IPIC_SEPNR, + .mask = IPIC_SEMSR, + .prio = IPIC_SMPRR_B, + .force = IPIC_SEFCR, + .bit = 5, + .prio_mask = 5, + }, + [22] = { + .pend = IPIC_SEPNR, + .mask = IPIC_SEMSR, + .prio = IPIC_SMPRR_B, + .force = IPIC_SEFCR, + .bit = 6, + .prio_mask = 6, + }, + [23] = { + .pend = IPIC_SEPNR, + .mask = IPIC_SEMSR, + .prio = IPIC_SMPRR_B, + .force = IPIC_SEFCR, + .bit = 7, + .prio_mask = 7, + }, + [32] = { + .pend = IPIC_SIPNR_H, + .mask = IPIC_SIMSR_H, + .prio = IPIC_SIPRR_A, + .force = IPIC_SIFCR_H, + .bit = 0, + .prio_mask = 0, + }, + [33] = { + .pend = IPIC_SIPNR_H, + .mask = IPIC_SIMSR_H, + .prio = IPIC_SIPRR_A, + .force = IPIC_SIFCR_H, + .bit = 1, + .prio_mask = 1, + }, + [34] = { + .pend = IPIC_SIPNR_H, + .mask = IPIC_SIMSR_H, + .prio = IPIC_SIPRR_A, + .force = IPIC_SIFCR_H, + .bit = 2, + .prio_mask = 2, + }, + [35] = { + .pend = IPIC_SIPNR_H, + .mask = IPIC_SIMSR_H, + .prio = IPIC_SIPRR_A, + .force = IPIC_SIFCR_H, + .bit = 3, + .prio_mask = 3, + }, + [36] = { + .pend = IPIC_SIPNR_H, + .mask = IPIC_SIMSR_H, + .prio = IPIC_SIPRR_A, + .force = IPIC_SIFCR_H, + .bit = 4, + .prio_mask = 4, + }, + [37] = { + .pend = IPIC_SIPNR_H, + .mask = IPIC_SIMSR_H, + .prio = IPIC_SIPRR_A, + .force = IPIC_SIFCR_H, + .bit = 5, + .prio_mask = 5, + }, + [38] = { + .pend = IPIC_SIPNR_H, + .mask = IPIC_SIMSR_H, + .prio = IPIC_SIPRR_A, + .force = IPIC_SIFCR_H, + .bit = 6, + .prio_mask = 6, + }, + [39] = { + .pend = IPIC_SIPNR_H, + .mask = IPIC_SIMSR_H, + .prio = IPIC_SIPRR_A, + .force = IPIC_SIFCR_H, + .bit = 7, + .prio_mask = 7, + }, + [48] = { + .pend = IPIC_SEPNR, + .mask = IPIC_SEMSR, + .prio = IPIC_SMPRR_A, + .force = IPIC_SEFCR, + .bit = 0, + .prio_mask = 4, + }, + [64] = { + .pend = IPIC_SIPNR_H, + .mask = IPIC_SIMSR_L, + .prio = IPIC_SMPRR_A, + .force = IPIC_SIFCR_L, + .bit = 0, + .prio_mask = 0, + }, + [65] = { + .pend = IPIC_SIPNR_H, + .mask = IPIC_SIMSR_L, + .prio = IPIC_SMPRR_A, + .force = IPIC_SIFCR_L, + .bit = 1, + .prio_mask = 1, + }, + [66] = { + .pend = IPIC_SIPNR_H, + .mask = IPIC_SIMSR_L, + .prio = IPIC_SMPRR_A, + .force = IPIC_SIFCR_L, + .bit = 2, + .prio_mask = 2, + }, + [67] = { + .pend = IPIC_SIPNR_H, + .mask = IPIC_SIMSR_L, + .prio = IPIC_SMPRR_A, + .force = IPIC_SIFCR_L, + .bit = 3, + .prio_mask = 3, + }, + [68] = { + .pend = IPIC_SIPNR_H, + .mask = IPIC_SIMSR_L, + .prio = IPIC_SMPRR_B, + .force = IPIC_SIFCR_L, + .bit = 4, + .prio_mask = 0, + }, + [69] = { + .pend = IPIC_SIPNR_H, + .mask = IPIC_SIMSR_L, + .prio = IPIC_SMPRR_B, + .force = IPIC_SIFCR_L, + .bit = 5, + .prio_mask = 1, + }, + [70] = { + .pend = IPIC_SIPNR_H, + .mask = IPIC_SIMSR_L, + .prio = IPIC_SMPRR_B, + .force = IPIC_SIFCR_L, + .bit = 6, + .prio_mask = 2, + }, + [71] = { + .pend = IPIC_SIPNR_H, + .mask = IPIC_SIMSR_L, + .prio = IPIC_SMPRR_B, + .force = IPIC_SIFCR_L, + .bit = 7, + .prio_mask = 3, + }, + [72] = { + .pend = IPIC_SIPNR_H, + .mask = IPIC_SIMSR_L, + .prio = 0, + .force = IPIC_SIFCR_L, + .bit = 8, + }, + [73] = { + .pend = IPIC_SIPNR_H, + .mask = IPIC_SIMSR_L, + .prio = 0, + .force = IPIC_SIFCR_L, + .bit = 9, + }, + [74] = { + .pend = IPIC_SIPNR_H, + .mask = IPIC_SIMSR_L, + .prio = 0, + .force = IPIC_SIFCR_L, + .bit = 10, + }, + [75] = { + .pend = IPIC_SIPNR_H, + .mask = IPIC_SIMSR_L, + .prio = 0, + .force = IPIC_SIFCR_L, + .bit = 11, + }, + [76] = { + .pend = IPIC_SIPNR_H, + .mask = IPIC_SIMSR_L, + .prio = 0, + .force = IPIC_SIFCR_L, + .bit = 12, + }, + [77] = { + .pend = IPIC_SIPNR_H, + .mask = IPIC_SIMSR_L, + .prio = 0, + .force = IPIC_SIFCR_L, + .bit = 13, + }, + [78] = { + .pend = IPIC_SIPNR_H, + .mask = IPIC_SIMSR_L, + .prio = 0, + .force = IPIC_SIFCR_L, + .bit = 14, + }, + [79] = { + .pend = IPIC_SIPNR_H, + .mask = IPIC_SIMSR_L, + .prio = 0, + .force = IPIC_SIFCR_L, + .bit = 15, + }, + [80] = { + .pend = IPIC_SIPNR_H, + .mask = IPIC_SIMSR_L, + .prio = 0, + .force = IPIC_SIFCR_L, + .bit = 16, + }, + [84] = { + .pend = IPIC_SIPNR_H, + .mask = IPIC_SIMSR_L, + .prio = 0, + .force = IPIC_SIFCR_L, + .bit = 20, + }, + [85] = { + .pend = IPIC_SIPNR_H, + .mask = IPIC_SIMSR_L, + .prio = 0, + .force = IPIC_SIFCR_L, + .bit = 21, + }, + [90] = { + .pend = IPIC_SIPNR_H, + .mask = IPIC_SIMSR_L, + .prio = 0, + .force = IPIC_SIFCR_L, + .bit = 26, + }, + [91] = { + .pend = IPIC_SIPNR_H, + .mask = IPIC_SIMSR_L, + .prio = 0, + .force = IPIC_SIFCR_L, + .bit = 27, + }, +}; + +static inline u32 ipic_read(volatile u32 __iomem *base, unsigned int reg) +{ + return in_be32(base + (reg >> 2)); +} + +static inline void ipic_write(volatile u32 __iomem *base, unsigned int reg, u32 value) +{ + out_be32(base + (reg >> 2), value); +} + +static inline struct ipic * ipic_from_irq(unsigned int irq) +{ + return primary_ipic; +} + +static void ipic_enable_irq(unsigned int irq) +{ + struct ipic *ipic = ipic_from_irq(irq); + unsigned int src = irq - ipic->irq_offset; + u32 temp; + + temp = ipic_read(ipic->regs, ipic_info[src].mask); + temp |= (1 << (31 - ipic_info[src].bit)); + ipic_write(ipic->regs, ipic_info[src].mask, temp); +} + +static void ipic_disable_irq(unsigned int irq) +{ + struct ipic *ipic = ipic_from_irq(irq); + unsigned int src = irq - ipic->irq_offset; + u32 temp; + + temp = ipic_read(ipic->regs, ipic_info[src].mask); + temp &= ~(1 << (31 - ipic_info[src].bit)); + ipic_write(ipic->regs, ipic_info[src].mask, temp); +} + +static void ipic_disable_irq_and_ack(unsigned int irq) +{ + struct ipic *ipic = ipic_from_irq(irq); + unsigned int src = irq - ipic->irq_offset; + u32 temp; + + ipic_disable_irq(irq); + + temp = ipic_read(ipic->regs, ipic_info[src].pend); + temp |= (1 << (31 - ipic_info[src].bit)); + ipic_write(ipic->regs, ipic_info[src].pend, temp); +} + +static void ipic_end_irq(unsigned int irq) +{ + if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) + ipic_enable_irq(irq); +} + +struct hw_interrupt_type ipic = { + .typename = " IPIC ", + .enable = ipic_enable_irq, + .disable = ipic_disable_irq, + .ack = ipic_disable_irq_and_ack, + .end = ipic_end_irq, +}; + +void __init ipic_init(phys_addr_t phys_addr, + unsigned int flags, + unsigned int irq_offset, + unsigned char *senses, + unsigned int senses_count) +{ + u32 i, temp = 0; + + primary_ipic = &p_ipic; + primary_ipic->regs = ioremap(phys_addr, MPC83xx_IPIC_SIZE); + + primary_ipic->irq_offset = irq_offset; + + ipic_write(primary_ipic->regs, IPIC_SICNR, 0x0); + + /* default priority scheme is grouped. If spread mode is required + * configure SICFR accordingly */ + if (flags & IPIC_SPREADMODE_GRP_A) + temp |= SICFR_IPSA; + if (flags & IPIC_SPREADMODE_GRP_D) + temp |= SICFR_IPSD; + if (flags & IPIC_SPREADMODE_MIX_A) + temp |= SICFR_MPSA; + if (flags & IPIC_SPREADMODE_MIX_B) + temp |= SICFR_MPSB; + + ipic_write(primary_ipic->regs, IPIC_SICNR, temp); + + /* handle MCP route */ + temp = 0; + if (flags & IPIC_DISABLE_MCP_OUT) + temp = SERCR_MCPR; + ipic_write(primary_ipic->regs, IPIC_SERCR, temp); + + /* handle routing of IRQ0 to MCP */ + temp = ipic_read(primary_ipic->regs, IPIC_SEMSR); + + if (flags & IPIC_IRQ0_MCP) + temp |= SEMSR_SIRQ0; + else + temp &= ~SEMSR_SIRQ0; + + ipic_write(primary_ipic->regs, IPIC_SEMSR, temp); + + for (i = 0 ; i < NR_IPIC_INTS ; i++) { + irq_desc[i+irq_offset].chip = &ipic; + irq_desc[i+irq_offset].status = IRQ_LEVEL; + } + + temp = 0; + for (i = 0 ; i < senses_count ; i++) { + if ((senses[i] & IRQ_SENSE_MASK) == IRQ_SENSE_EDGE) { + temp |= 1 << (15 - i); + if (i != 0) + irq_desc[i + irq_offset + MPC83xx_IRQ_EXT1 - 1].status = 0; + else + irq_desc[irq_offset + MPC83xx_IRQ_EXT0].status = 0; + } + } + ipic_write(primary_ipic->regs, IPIC_SECNR, temp); + + printk ("IPIC (%d IRQ sources, %d External IRQs) at %p\n", NR_IPIC_INTS, + senses_count, primary_ipic->regs); +} + +int ipic_set_priority(unsigned int irq, unsigned int priority) +{ + struct ipic *ipic = ipic_from_irq(irq); + unsigned int src = irq - ipic->irq_offset; + u32 temp; + + if (priority > 7) + return -EINVAL; + if (src > 127) + return -EINVAL; + if (ipic_info[src].prio == 0) + return -EINVAL; + + temp = ipic_read(ipic->regs, ipic_info[src].prio); + + if (priority < 4) { + temp &= ~(0x7 << (20 + (3 - priority) * 3)); + temp |= ipic_info[src].prio_mask << (20 + (3 - priority) * 3); + } else { + temp &= ~(0x7 << (4 + (7 - priority) * 3)); + temp |= ipic_info[src].prio_mask << (4 + (7 - priority) * 3); + } + + ipic_write(ipic->regs, ipic_info[src].prio, temp); + + return 0; +} + +void ipic_set_highest_priority(unsigned int irq) +{ + struct ipic *ipic = ipic_from_irq(irq); + unsigned int src = irq - ipic->irq_offset; + u32 temp; + + temp = ipic_read(ipic->regs, IPIC_SICFR); + + /* clear and set HPI */ + temp &= 0x7f000000; + temp |= (src & 0x7f) << 24; + + ipic_write(ipic->regs, IPIC_SICFR, temp); +} + +void ipic_set_default_priority(void) +{ + ipic_set_priority(MPC83xx_IRQ_TSEC1_TX, 0); + ipic_set_priority(MPC83xx_IRQ_TSEC1_RX, 1); + ipic_set_priority(MPC83xx_IRQ_TSEC1_ERROR, 2); + ipic_set_priority(MPC83xx_IRQ_TSEC2_TX, 3); + ipic_set_priority(MPC83xx_IRQ_TSEC2_RX, 4); + ipic_set_priority(MPC83xx_IRQ_TSEC2_ERROR, 5); + ipic_set_priority(MPC83xx_IRQ_USB2_DR, 6); + ipic_set_priority(MPC83xx_IRQ_USB2_MPH, 7); + + ipic_set_priority(MPC83xx_IRQ_UART1, 0); + ipic_set_priority(MPC83xx_IRQ_UART2, 1); + ipic_set_priority(MPC83xx_IRQ_SEC2, 2); + ipic_set_priority(MPC83xx_IRQ_IIC1, 5); + ipic_set_priority(MPC83xx_IRQ_IIC2, 6); + ipic_set_priority(MPC83xx_IRQ_SPI, 7); + ipic_set_priority(MPC83xx_IRQ_RTC_SEC, 0); + ipic_set_priority(MPC83xx_IRQ_PIT, 1); + ipic_set_priority(MPC83xx_IRQ_PCI1, 2); + ipic_set_priority(MPC83xx_IRQ_PCI2, 3); + ipic_set_priority(MPC83xx_IRQ_EXT0, 4); + ipic_set_priority(MPC83xx_IRQ_EXT1, 5); + ipic_set_priority(MPC83xx_IRQ_EXT2, 6); + ipic_set_priority(MPC83xx_IRQ_EXT3, 7); + ipic_set_priority(MPC83xx_IRQ_RTC_ALR, 0); + ipic_set_priority(MPC83xx_IRQ_MU, 1); + ipic_set_priority(MPC83xx_IRQ_SBA, 2); + ipic_set_priority(MPC83xx_IRQ_DMA, 3); + ipic_set_priority(MPC83xx_IRQ_EXT4, 4); + ipic_set_priority(MPC83xx_IRQ_EXT5, 5); + ipic_set_priority(MPC83xx_IRQ_EXT6, 6); + ipic_set_priority(MPC83xx_IRQ_EXT7, 7); +} + +void ipic_enable_mcp(enum ipic_mcp_irq mcp_irq) +{ + struct ipic *ipic = primary_ipic; + u32 temp; + + temp = ipic_read(ipic->regs, IPIC_SERMR); + temp |= (1 << (31 - mcp_irq)); + ipic_write(ipic->regs, IPIC_SERMR, temp); +} + +void ipic_disable_mcp(enum ipic_mcp_irq mcp_irq) +{ + struct ipic *ipic = primary_ipic; + u32 temp; + + temp = ipic_read(ipic->regs, IPIC_SERMR); + temp &= (1 << (31 - mcp_irq)); + ipic_write(ipic->regs, IPIC_SERMR, temp); +} + +u32 ipic_get_mcp_status(void) +{ + return ipic_read(primary_ipic->regs, IPIC_SERMR); +} + +void ipic_clear_mcp_status(u32 mask) +{ + ipic_write(primary_ipic->regs, IPIC_SERMR, mask); +} + +/* Return an interrupt vector or -1 if no interrupt is pending. */ +int ipic_get_irq(struct pt_regs *regs) +{ + int irq; + + irq = ipic_read(primary_ipic->regs, IPIC_SIVCR) & 0x7f; + + if (irq == 0) /* 0 --> no irq is pending */ + irq = -1; + + return irq; +} + +static struct sysdev_class ipic_sysclass = { + set_kset_name("ipic"), +}; + +static struct sys_device device_ipic = { + .id = 0, + .cls = &ipic_sysclass, +}; + +static int __init init_ipic_sysfs(void) +{ + int rc; + + if (!primary_ipic->regs) + return -ENODEV; + printk(KERN_DEBUG "Registering ipic with sysfs...\n"); + + rc = sysdev_class_register(&ipic_sysclass); + if (rc) { + printk(KERN_ERR "Failed registering ipic sys class\n"); + return -ENODEV; + } + rc = sysdev_register(&device_ipic); + if (rc) { + printk(KERN_ERR "Failed registering ipic sys device\n"); + return -ENODEV; + } + return 0; +} + +subsys_initcall(init_ipic_sysfs); diff --git a/arch/ppc/syslib/ipic.h b/arch/ppc/syslib/ipic.h new file mode 100644 index 000000000000..a60c9d18bb7f --- /dev/null +++ b/arch/ppc/syslib/ipic.h @@ -0,0 +1,47 @@ +/* + * IPIC private definitions and structure. + * + * Maintainer: Kumar Gala + * + * Copyright 2005 Freescale Semiconductor, Inc + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ +#ifndef __IPIC_H__ +#define __IPIC_H__ + +#include + +#define MPC83xx_IPIC_SIZE (0x00100) + +/* System Global Interrupt Configuration Register */ +#define SICFR_IPSA 0x00010000 +#define SICFR_IPSD 0x00080000 +#define SICFR_MPSA 0x00200000 +#define SICFR_MPSB 0x00400000 + +/* System External Interrupt Mask Register */ +#define SEMSR_SIRQ0 0x00008000 + +/* System Error Control Register */ +#define SERCR_MCPR 0x00000001 + +struct ipic { + volatile u32 __iomem *regs; + unsigned int irq_offset; +}; + +struct ipic_info { + u8 pend; /* pending register offset from base */ + u8 mask; /* mask register offset from base */ + u8 prio; /* priority register offset from base */ + u8 force; /* force register offset from base */ + u8 bit; /* register bit position (as per doc) + bit mask = 1 << (31 - bit) */ + u8 prio_mask; /* priority mask value */ +}; + +#endif /* __IPIC_H__ */ diff --git a/include/asm-powerpc/ipic.h b/include/asm-powerpc/ipic.h index 0fe396a2b666..53079ec3a515 100644 --- a/include/asm-powerpc/ipic.h +++ b/include/asm-powerpc/ipic.h @@ -69,9 +69,6 @@ enum ipic_mcp_irq { IPIC_MCP_MU = 7, }; -extern void ipic_init(phys_addr_t phys_addr, unsigned int flags, - unsigned int irq_offset, - unsigned char *senses, unsigned int senses_count); extern int ipic_set_priority(unsigned int irq, unsigned int priority); extern void ipic_set_highest_priority(unsigned int irq); extern void ipic_set_default_priority(void); @@ -79,7 +76,16 @@ extern void ipic_enable_mcp(enum ipic_mcp_irq mcp_irq); extern void ipic_disable_mcp(enum ipic_mcp_irq mcp_irq); extern u32 ipic_get_mcp_status(void); extern void ipic_clear_mcp_status(u32 mask); + +#ifdef CONFIG_PPC_MERGE +extern void ipic_init(struct device_node *node, unsigned int flags); +extern unsigned int ipic_get_irq(struct pt_regs *regs); +#else +extern void ipic_init(phys_addr_t phys_addr, unsigned int flags, + unsigned int irq_offset, + unsigned char *senses, unsigned int senses_count); extern int ipic_get_irq(struct pt_regs *regs); +#endif #endif /* __ASM_IPIC_H__ */ #endif /* __KERNEL__ */ From b9f0f1bb2bcaae96dd3267f6bd3ad1ca44a1f5ad Mon Sep 17 00:00:00 2001 From: Kim Phillips Date: Fri, 25 Aug 2006 11:59:07 -0500 Subject: [PATCH 392/488] [POWERPC] Adapt ipic driver to new host_ops interface, add set_irq_type to set IRQ sense This converts ipic code to Benh's IRQ mods. For the IPIC, IRQ sense values in the device tree equal those in include/linux/irq.h; that's 8 for low assertion (most internal IRQs on mpc83xx), and 2 for high-to-low change. spinlocks added to [un]mask, ack operations; default handler and type now set in host_map; and redundant condition check eliminated. Signed-off-by: Kim Phillips Signed-off-by: Li Yang Signed-off-by: Paul Mackerras --- arch/powerpc/sysdev/ipic.c | 303 +++++++++++++++++++++++++------------ arch/powerpc/sysdev/ipic.h | 23 ++- 2 files changed, 228 insertions(+), 98 deletions(-) diff --git a/arch/powerpc/sysdev/ipic.c b/arch/powerpc/sysdev/ipic.c index 46801f5ec03f..70e707785d49 100644 --- a/arch/powerpc/sysdev/ipic.c +++ b/arch/powerpc/sysdev/ipic.c @@ -19,15 +19,18 @@ #include #include #include +#include +#include +#include #include #include +#include #include -#include #include "ipic.h" -static struct ipic p_ipic; static struct ipic * primary_ipic; +static DEFINE_SPINLOCK(ipic_lock); static struct ipic_info ipic_info[] = { [9] = { @@ -373,74 +376,220 @@ static inline void ipic_write(volatile u32 __iomem *base, unsigned int reg, u32 out_be32(base + (reg >> 2), value); } -static inline struct ipic * ipic_from_irq(unsigned int irq) +static inline struct ipic * ipic_from_irq(unsigned int virq) { return primary_ipic; } -static void ipic_enable_irq(unsigned int irq) +#define ipic_irq_to_hw(virq) ((unsigned int)irq_map[virq].hwirq) + +static void ipic_unmask_irq(unsigned int virq) { - struct ipic *ipic = ipic_from_irq(irq); - unsigned int src = irq - ipic->irq_offset; + struct ipic *ipic = ipic_from_irq(virq); + unsigned int src = ipic_irq_to_hw(virq); + unsigned long flags; u32 temp; + spin_lock_irqsave(&ipic_lock, flags); + temp = ipic_read(ipic->regs, ipic_info[src].mask); temp |= (1 << (31 - ipic_info[src].bit)); ipic_write(ipic->regs, ipic_info[src].mask, temp); + + spin_unlock_irqrestore(&ipic_lock, flags); } -static void ipic_disable_irq(unsigned int irq) +static void ipic_mask_irq(unsigned int virq) { - struct ipic *ipic = ipic_from_irq(irq); - unsigned int src = irq - ipic->irq_offset; + struct ipic *ipic = ipic_from_irq(virq); + unsigned int src = ipic_irq_to_hw(virq); + unsigned long flags; u32 temp; + spin_lock_irqsave(&ipic_lock, flags); + temp = ipic_read(ipic->regs, ipic_info[src].mask); temp &= ~(1 << (31 - ipic_info[src].bit)); ipic_write(ipic->regs, ipic_info[src].mask, temp); + + spin_unlock_irqrestore(&ipic_lock, flags); } -static void ipic_disable_irq_and_ack(unsigned int irq) +static void ipic_ack_irq(unsigned int virq) { - struct ipic *ipic = ipic_from_irq(irq); - unsigned int src = irq - ipic->irq_offset; + struct ipic *ipic = ipic_from_irq(virq); + unsigned int src = ipic_irq_to_hw(virq); + unsigned long flags; u32 temp; - ipic_disable_irq(irq); + spin_lock_irqsave(&ipic_lock, flags); temp = ipic_read(ipic->regs, ipic_info[src].pend); temp |= (1 << (31 - ipic_info[src].bit)); ipic_write(ipic->regs, ipic_info[src].pend, temp); + + spin_unlock_irqrestore(&ipic_lock, flags); } -static void ipic_end_irq(unsigned int irq) +static void ipic_mask_irq_and_ack(unsigned int virq) { - if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) - ipic_enable_irq(irq); + struct ipic *ipic = ipic_from_irq(virq); + unsigned int src = ipic_irq_to_hw(virq); + unsigned long flags; + u32 temp; + + spin_lock_irqsave(&ipic_lock, flags); + + temp = ipic_read(ipic->regs, ipic_info[src].mask); + temp &= ~(1 << (31 - ipic_info[src].bit)); + ipic_write(ipic->regs, ipic_info[src].mask, temp); + + temp = ipic_read(ipic->regs, ipic_info[src].pend); + temp |= (1 << (31 - ipic_info[src].bit)); + ipic_write(ipic->regs, ipic_info[src].pend, temp); + + spin_unlock_irqrestore(&ipic_lock, flags); } -struct hw_interrupt_type ipic = { - .typename = " IPIC ", - .enable = ipic_enable_irq, - .disable = ipic_disable_irq, - .ack = ipic_disable_irq_and_ack, - .end = ipic_end_irq, +static int ipic_set_irq_type(unsigned int virq, unsigned int flow_type) +{ + struct ipic *ipic = ipic_from_irq(virq); + unsigned int src = ipic_irq_to_hw(virq); + struct irq_desc *desc = get_irq_desc(virq); + unsigned int vold, vnew, edibit; + + if (flow_type == IRQ_TYPE_NONE) + flow_type = IRQ_TYPE_LEVEL_LOW; + + /* ipic supports only low assertion and high-to-low change senses + */ + if (!(flow_type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_EDGE_FALLING))) { + printk(KERN_ERR "ipic: sense type 0x%x not supported\n", + flow_type); + return -EINVAL; + } + + desc->status &= ~(IRQ_TYPE_SENSE_MASK | IRQ_LEVEL); + desc->status |= flow_type & IRQ_TYPE_SENSE_MASK; + if (flow_type & IRQ_TYPE_LEVEL_LOW) { + desc->status |= IRQ_LEVEL; + set_irq_handler(virq, handle_level_irq); + } else { + set_irq_handler(virq, handle_edge_irq); + } + + /* only EXT IRQ senses are programmable on ipic + * internal IRQ senses are LEVEL_LOW + */ + if (src == IPIC_IRQ_EXT0) + edibit = 15; + else + if (src >= IPIC_IRQ_EXT1 && src <= IPIC_IRQ_EXT7) + edibit = (14 - (src - IPIC_IRQ_EXT1)); + else + return (flow_type & IRQ_TYPE_LEVEL_LOW) ? 0 : -EINVAL; + + vold = ipic_read(ipic->regs, IPIC_SECNR); + if ((flow_type & IRQ_TYPE_SENSE_MASK) == IRQ_TYPE_EDGE_FALLING) { + vnew = vold | (1 << edibit); + } else { + vnew = vold & ~(1 << edibit); + } + if (vold != vnew) + ipic_write(ipic->regs, IPIC_SECNR, vnew); + return 0; +} + +static struct irq_chip ipic_irq_chip = { + .typename = " IPIC ", + .unmask = ipic_unmask_irq, + .mask = ipic_mask_irq, + .mask_ack = ipic_mask_irq_and_ack, + .ack = ipic_ack_irq, + .set_type = ipic_set_irq_type, }; -void __init ipic_init(phys_addr_t phys_addr, - unsigned int flags, - unsigned int irq_offset, - unsigned char *senses, - unsigned int senses_count) +static int ipic_host_match(struct irq_host *h, struct device_node *node) { - u32 i, temp = 0; + struct ipic *ipic = h->host_data; - primary_ipic = &p_ipic; - primary_ipic->regs = ioremap(phys_addr, MPC83xx_IPIC_SIZE); + /* Exact match, unless ipic node is NULL */ + return ipic->of_node == NULL || ipic->of_node == node; +} - primary_ipic->irq_offset = irq_offset; +static int ipic_host_map(struct irq_host *h, unsigned int virq, + irq_hw_number_t hw) +{ + struct ipic *ipic = h->host_data; + struct irq_chip *chip; - ipic_write(primary_ipic->regs, IPIC_SICNR, 0x0); + /* Default chip */ + chip = &ipic->hc_irq; + + set_irq_chip_data(virq, ipic); + set_irq_chip_and_handler(virq, chip, handle_level_irq); + + /* Set default irq type */ + set_irq_type(virq, IRQ_TYPE_NONE); + + return 0; +} + +static int ipic_host_xlate(struct irq_host *h, struct device_node *ct, + u32 *intspec, unsigned int intsize, + irq_hw_number_t *out_hwirq, unsigned int *out_flags) + +{ + /* interrupt sense values coming from the device tree equal either + * LEVEL_LOW (low assertion) or EDGE_FALLING (high-to-low change) + */ + *out_hwirq = intspec[0]; + if (intsize > 1) + *out_flags = intspec[1]; + else + *out_flags = IRQ_TYPE_NONE; + return 0; +} + +static struct irq_host_ops ipic_host_ops = { + .match = ipic_host_match, + .map = ipic_host_map, + .xlate = ipic_host_xlate, +}; + +void __init ipic_init(struct device_node *node, + unsigned int flags) +{ + struct ipic *ipic; + struct resource res; + u32 temp = 0, ret; + + ipic = alloc_bootmem(sizeof(struct ipic)); + if (ipic == NULL) + return; + + memset(ipic, 0, sizeof(struct ipic)); + ipic->of_node = node ? of_node_get(node) : NULL; + + ipic->irqhost = irq_alloc_host(IRQ_HOST_MAP_LINEAR, + NR_IPIC_INTS, + &ipic_host_ops, 0); + if (ipic->irqhost == NULL) { + of_node_put(node); + return; + } + + ret = of_address_to_resource(node, 0, &res); + if (ret) + return; + + ipic->regs = ioremap(res.start, res.end - res.start + 1); + + ipic->irqhost->host_data = ipic; + ipic->hc_irq = ipic_irq_chip; + + /* init hw */ + ipic_write(ipic->regs, IPIC_SICNR, 0x0); /* default priority scheme is grouped. If spread mode is required * configure SICFR accordingly */ @@ -453,49 +602,35 @@ void __init ipic_init(phys_addr_t phys_addr, if (flags & IPIC_SPREADMODE_MIX_B) temp |= SICFR_MPSB; - ipic_write(primary_ipic->regs, IPIC_SICNR, temp); + ipic_write(ipic->regs, IPIC_SICNR, temp); /* handle MCP route */ temp = 0; if (flags & IPIC_DISABLE_MCP_OUT) temp = SERCR_MCPR; - ipic_write(primary_ipic->regs, IPIC_SERCR, temp); + ipic_write(ipic->regs, IPIC_SERCR, temp); /* handle routing of IRQ0 to MCP */ - temp = ipic_read(primary_ipic->regs, IPIC_SEMSR); + temp = ipic_read(ipic->regs, IPIC_SEMSR); if (flags & IPIC_IRQ0_MCP) temp |= SEMSR_SIRQ0; else temp &= ~SEMSR_SIRQ0; - ipic_write(primary_ipic->regs, IPIC_SEMSR, temp); + ipic_write(ipic->regs, IPIC_SEMSR, temp); - for (i = 0 ; i < NR_IPIC_INTS ; i++) { - irq_desc[i+irq_offset].chip = &ipic; - irq_desc[i+irq_offset].status = IRQ_LEVEL; - } + primary_ipic = ipic; + irq_set_default_host(primary_ipic->irqhost); - temp = 0; - for (i = 0 ; i < senses_count ; i++) { - if ((senses[i] & IRQ_SENSE_MASK) == IRQ_SENSE_EDGE) { - temp |= 1 << (15 - i); - if (i != 0) - irq_desc[i + irq_offset + MPC83xx_IRQ_EXT1 - 1].status = 0; - else - irq_desc[irq_offset + MPC83xx_IRQ_EXT0].status = 0; - } - } - ipic_write(primary_ipic->regs, IPIC_SECNR, temp); - - printk ("IPIC (%d IRQ sources, %d External IRQs) at %p\n", NR_IPIC_INTS, - senses_count, primary_ipic->regs); + printk ("IPIC (%d IRQ sources) at %p\n", NR_IPIC_INTS, + primary_ipic->regs); } -int ipic_set_priority(unsigned int irq, unsigned int priority) +int ipic_set_priority(unsigned int virq, unsigned int priority) { - struct ipic *ipic = ipic_from_irq(irq); - unsigned int src = irq - ipic->irq_offset; + struct ipic *ipic = ipic_from_irq(virq); + unsigned int src = ipic_irq_to_hw(virq); u32 temp; if (priority > 7) @@ -520,10 +655,10 @@ int ipic_set_priority(unsigned int irq, unsigned int priority) return 0; } -void ipic_set_highest_priority(unsigned int irq) +void ipic_set_highest_priority(unsigned int virq) { - struct ipic *ipic = ipic_from_irq(irq); - unsigned int src = irq - ipic->irq_offset; + struct ipic *ipic = ipic_from_irq(virq); + unsigned int src = ipic_irq_to_hw(virq); u32 temp; temp = ipic_read(ipic->regs, IPIC_SICFR); @@ -537,37 +672,10 @@ void ipic_set_highest_priority(unsigned int irq) void ipic_set_default_priority(void) { - ipic_set_priority(MPC83xx_IRQ_TSEC1_TX, 0); - ipic_set_priority(MPC83xx_IRQ_TSEC1_RX, 1); - ipic_set_priority(MPC83xx_IRQ_TSEC1_ERROR, 2); - ipic_set_priority(MPC83xx_IRQ_TSEC2_TX, 3); - ipic_set_priority(MPC83xx_IRQ_TSEC2_RX, 4); - ipic_set_priority(MPC83xx_IRQ_TSEC2_ERROR, 5); - ipic_set_priority(MPC83xx_IRQ_USB2_DR, 6); - ipic_set_priority(MPC83xx_IRQ_USB2_MPH, 7); - - ipic_set_priority(MPC83xx_IRQ_UART1, 0); - ipic_set_priority(MPC83xx_IRQ_UART2, 1); - ipic_set_priority(MPC83xx_IRQ_SEC2, 2); - ipic_set_priority(MPC83xx_IRQ_IIC1, 5); - ipic_set_priority(MPC83xx_IRQ_IIC2, 6); - ipic_set_priority(MPC83xx_IRQ_SPI, 7); - ipic_set_priority(MPC83xx_IRQ_RTC_SEC, 0); - ipic_set_priority(MPC83xx_IRQ_PIT, 1); - ipic_set_priority(MPC83xx_IRQ_PCI1, 2); - ipic_set_priority(MPC83xx_IRQ_PCI2, 3); - ipic_set_priority(MPC83xx_IRQ_EXT0, 4); - ipic_set_priority(MPC83xx_IRQ_EXT1, 5); - ipic_set_priority(MPC83xx_IRQ_EXT2, 6); - ipic_set_priority(MPC83xx_IRQ_EXT3, 7); - ipic_set_priority(MPC83xx_IRQ_RTC_ALR, 0); - ipic_set_priority(MPC83xx_IRQ_MU, 1); - ipic_set_priority(MPC83xx_IRQ_SBA, 2); - ipic_set_priority(MPC83xx_IRQ_DMA, 3); - ipic_set_priority(MPC83xx_IRQ_EXT4, 4); - ipic_set_priority(MPC83xx_IRQ_EXT5, 5); - ipic_set_priority(MPC83xx_IRQ_EXT6, 6); - ipic_set_priority(MPC83xx_IRQ_EXT7, 7); + ipic_write(primary_ipic->regs, IPIC_SIPRR_A, IPIC_SIPRR_A_DEFAULT); + ipic_write(primary_ipic->regs, IPIC_SIPRR_D, IPIC_SIPRR_D_DEFAULT); + ipic_write(primary_ipic->regs, IPIC_SMPRR_A, IPIC_SMPRR_A_DEFAULT); + ipic_write(primary_ipic->regs, IPIC_SMPRR_B, IPIC_SMPRR_B_DEFAULT); } void ipic_enable_mcp(enum ipic_mcp_irq mcp_irq) @@ -600,17 +708,20 @@ void ipic_clear_mcp_status(u32 mask) ipic_write(primary_ipic->regs, IPIC_SERMR, mask); } -/* Return an interrupt vector or -1 if no interrupt is pending. */ -int ipic_get_irq(struct pt_regs *regs) +/* Return an interrupt vector or NO_IRQ if no interrupt is pending. */ +unsigned int ipic_get_irq(struct pt_regs *regs) { int irq; - irq = ipic_read(primary_ipic->regs, IPIC_SIVCR) & 0x7f; + BUG_ON(primary_ipic == NULL); + +#define IPIC_SIVCR_VECTOR_MASK 0x7f + irq = ipic_read(primary_ipic->regs, IPIC_SIVCR) & IPIC_SIVCR_VECTOR_MASK; if (irq == 0) /* 0 --> no irq is pending */ - irq = -1; + return NO_IRQ; - return irq; + return irq_linear_revmap(primary_ipic->irqhost, irq); } static struct sysdev_class ipic_sysclass = { diff --git a/arch/powerpc/sysdev/ipic.h b/arch/powerpc/sysdev/ipic.h index a60c9d18bb7f..c28e589877eb 100644 --- a/arch/powerpc/sysdev/ipic.h +++ b/arch/powerpc/sysdev/ipic.h @@ -15,7 +15,18 @@ #include -#define MPC83xx_IPIC_SIZE (0x00100) +#define NR_IPIC_INTS 128 + +/* External IRQS */ +#define IPIC_IRQ_EXT0 48 +#define IPIC_IRQ_EXT1 17 +#define IPIC_IRQ_EXT7 23 + +/* Default Priority Registers */ +#define IPIC_SIPRR_A_DEFAULT 0x05309770 +#define IPIC_SIPRR_D_DEFAULT 0x05309770 +#define IPIC_SMPRR_A_DEFAULT 0x05309770 +#define IPIC_SMPRR_B_DEFAULT 0x05309770 /* System Global Interrupt Configuration Register */ #define SICFR_IPSA 0x00010000 @@ -31,7 +42,15 @@ struct ipic { volatile u32 __iomem *regs; - unsigned int irq_offset; + + /* The remapper for this IPIC */ + struct irq_host *irqhost; + + /* The "linux" controller struct */ + struct irq_chip hc_irq; + + /* The device node of the interrupt controller */ + struct device_node *of_node; }; struct ipic_info { From f1f17716d13bfb709809a3f5c84bda105b646b9e Mon Sep 17 00:00:00 2001 From: Kim Phillips Date: Fri, 25 Aug 2006 11:59:22 -0500 Subject: [PATCH 393/488] [POWERPC] modify mpc83xx platforms to use new IRQ layer This fixes MPC834x MDS (formerly SYS) and ITX platform code to get IRQ data (including PCI) from the device tree, and to use the new IPIC code. renamed defconfig (sys -> mds), left one redundant NULL assignment in mpc83xx_pcibios_fixup to keep the compiler happy. Signed-off-by: Kim Phillips Signed-off-by: Li Yang Signed-off-by: Paul Mackerras --- ...4x_sys_defconfig => mpc834x_mds_defconfig} | 0 arch/powerpc/platforms/83xx/mpc834x_itx.c | 49 +++------------- arch/powerpc/platforms/83xx/mpc834x_sys.c | 56 +++---------------- arch/powerpc/platforms/83xx/mpc83xx.h | 1 + arch/powerpc/platforms/83xx/pci.c | 9 +++ 5 files changed, 28 insertions(+), 87 deletions(-) rename arch/powerpc/configs/{mpc834x_sys_defconfig => mpc834x_mds_defconfig} (100%) diff --git a/arch/powerpc/configs/mpc834x_sys_defconfig b/arch/powerpc/configs/mpc834x_mds_defconfig similarity index 100% rename from arch/powerpc/configs/mpc834x_sys_defconfig rename to arch/powerpc/configs/mpc834x_mds_defconfig diff --git a/arch/powerpc/platforms/83xx/mpc834x_itx.c b/arch/powerpc/platforms/83xx/mpc834x_itx.c index b46305645d38..cf3967a66fb5 100644 --- a/arch/powerpc/platforms/83xx/mpc834x_itx.c +++ b/arch/powerpc/platforms/83xx/mpc834x_itx.c @@ -46,26 +46,6 @@ unsigned long isa_io_base = 0; unsigned long isa_mem_base = 0; #endif -#ifdef CONFIG_PCI -static int -mpc83xx_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin) -{ - static char pci_irq_table[][4] = - /* - * PCI IDSEL/INTPIN->INTLINE - * A B C D - */ - { - {PIRQB, PIRQC, PIRQD, PIRQA}, /* idsel 0x0e */ - {PIRQA, PIRQB, PIRQC, PIRQD}, /* idsel 0x0f */ - {PIRQC, PIRQD, PIRQA, PIRQB}, /* idsel 0x10 */ - }; - - const long min_idsel = 0x0e, max_idsel = 0x10, irqs_per_slot = 4; - return PCI_IRQ_TABLE_LOOKUP; -} -#endif /* CONFIG_PCI */ - /* ************************************************************************ * * Setup the architecture @@ -92,8 +72,6 @@ static void __init mpc834x_itx_setup_arch(void) for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;) add_bridge(np); - ppc_md.pci_swizzle = common_swizzle; - ppc_md.pci_map_irq = mpc83xx_map_irq; ppc_md.pci_exclude_device = mpc83xx_exclude_device; #endif @@ -106,25 +84,13 @@ static void __init mpc834x_itx_setup_arch(void) void __init mpc834x_itx_init_IRQ(void) { - u8 senses[8] = { - 0, /* EXT 0 */ - IRQ_SENSE_LEVEL, /* EXT 1 */ - IRQ_SENSE_LEVEL, /* EXT 2 */ - 0, /* EXT 3 */ -#ifdef CONFIG_PCI - IRQ_SENSE_LEVEL, /* EXT 4 */ - IRQ_SENSE_LEVEL, /* EXT 5 */ - IRQ_SENSE_LEVEL, /* EXT 6 */ - IRQ_SENSE_LEVEL, /* EXT 7 */ -#else - 0, /* EXT 4 */ - 0, /* EXT 5 */ - 0, /* EXT 6 */ - 0, /* EXT 7 */ -#endif - }; + struct device_node *np; - ipic_init(get_immrbase() + 0x00700, 0, 0, senses, 8); + np = of_find_node_by_type(NULL, "ipic"); + if (!np) + return; + + ipic_init(np, 0); /* Initialize the default interrupt mapping priorities, * in case the boot rom changed something on us. @@ -153,4 +119,7 @@ define_machine(mpc834x_itx) { .time_init = mpc83xx_time_init, .calibrate_decr = generic_calibrate_decr, .progress = udbg_progress, +#ifdef CONFIG_PCI + .pcibios_fixup = mpc83xx_pcibios_fixup, +#endif }; diff --git a/arch/powerpc/platforms/83xx/mpc834x_sys.c b/arch/powerpc/platforms/83xx/mpc834x_sys.c index 3e1c16eb4a63..32df239d1c48 100644 --- a/arch/powerpc/platforms/83xx/mpc834x_sys.c +++ b/arch/powerpc/platforms/83xx/mpc834x_sys.c @@ -43,33 +43,6 @@ unsigned long isa_io_base = 0; unsigned long isa_mem_base = 0; #endif -#ifdef CONFIG_PCI -static int -mpc83xx_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin) -{ - static char pci_irq_table[][4] = - /* - * PCI IDSEL/INTPIN->INTLINE - * A B C D - */ - { - {PIRQA, PIRQB, PIRQC, PIRQD}, /* idsel 0x11 */ - {PIRQC, PIRQD, PIRQA, PIRQB}, /* idsel 0x12 */ - {PIRQD, PIRQA, PIRQB, PIRQC}, /* idsel 0x13 */ - {0, 0, 0, 0}, - {PIRQA, PIRQB, PIRQC, PIRQD}, /* idsel 0x15 */ - {PIRQD, PIRQA, PIRQB, PIRQC}, /* idsel 0x16 */ - {PIRQC, PIRQD, PIRQA, PIRQB}, /* idsel 0x17 */ - {PIRQB, PIRQC, PIRQD, PIRQA}, /* idsel 0x18 */ - {0, 0, 0, 0}, /* idsel 0x19 */ - {0, 0, 0, 0}, /* idsel 0x20 */ - }; - - const long min_idsel = 0x11, max_idsel = 0x20, irqs_per_slot = 4; - return PCI_IRQ_TABLE_LOOKUP; -} -#endif /* CONFIG_PCI */ - /* ************************************************************************ * * Setup the architecture @@ -96,8 +69,6 @@ static void __init mpc834x_sys_setup_arch(void) for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;) add_bridge(np); - ppc_md.pci_swizzle = common_swizzle; - ppc_md.pci_map_irq = mpc83xx_map_irq; ppc_md.pci_exclude_device = mpc83xx_exclude_device; #endif @@ -110,25 +81,13 @@ static void __init mpc834x_sys_setup_arch(void) void __init mpc834x_sys_init_IRQ(void) { - u8 senses[8] = { - 0, /* EXT 0 */ - IRQ_SENSE_LEVEL, /* EXT 1 */ - IRQ_SENSE_LEVEL, /* EXT 2 */ - 0, /* EXT 3 */ -#ifdef CONFIG_PCI - IRQ_SENSE_LEVEL, /* EXT 4 */ - IRQ_SENSE_LEVEL, /* EXT 5 */ - IRQ_SENSE_LEVEL, /* EXT 6 */ - IRQ_SENSE_LEVEL, /* EXT 7 */ -#else - 0, /* EXT 4 */ - 0, /* EXT 5 */ - 0, /* EXT 6 */ - 0, /* EXT 7 */ -#endif - }; + struct device_node *np; - ipic_init(get_immrbase() + 0x00700, 0, 0, senses, 8); + np = of_find_node_by_type(NULL, "ipic"); + if (!np) + return; + + ipic_init(np, 0); /* Initialize the default interrupt mapping priorities, * in case the boot rom changed something on us. @@ -178,4 +137,7 @@ define_machine(mpc834x_sys) { .time_init = mpc83xx_time_init, .calibrate_decr = generic_calibrate_decr, .progress = udbg_progress, +#ifdef CONFIG_PCI + .pcibios_fixup = mpc83xx_pcibios_fixup, +#endif }; diff --git a/arch/powerpc/platforms/83xx/mpc83xx.h b/arch/powerpc/platforms/83xx/mpc83xx.h index 01cae106912b..2c82bca9bfbb 100644 --- a/arch/powerpc/platforms/83xx/mpc83xx.h +++ b/arch/powerpc/platforms/83xx/mpc83xx.h @@ -11,6 +11,7 @@ extern int add_bridge(struct device_node *dev); extern int mpc83xx_exclude_device(u_char bus, u_char devfn); +extern void mpc83xx_pcibios_fixup(void); extern void mpc83xx_restart(char *cmd); extern long mpc83xx_time_init(void); diff --git a/arch/powerpc/platforms/83xx/pci.c b/arch/powerpc/platforms/83xx/pci.c index 3b5e563c279f..5d84a9ccd103 100644 --- a/arch/powerpc/platforms/83xx/pci.c +++ b/arch/powerpc/platforms/83xx/pci.c @@ -45,6 +45,15 @@ int mpc83xx_exclude_device(u_char bus, u_char devfn) return PCIBIOS_SUCCESSFUL; } +void __init mpc83xx_pcibios_fixup(void) +{ + struct pci_dev *dev = NULL; + + /* map all the PCI irqs */ + for_each_pci_dev(dev) + pci_read_irq_line(dev); +} + int __init add_bridge(struct device_node *dev) { int len; From 1b9a93eb4638dcde0c3af42fd6c05e3911baa7db Mon Sep 17 00:00:00 2001 From: Kim Phillips Date: Tue, 29 Aug 2006 18:13:31 -0500 Subject: [PATCH 394/488] [POWERPC] Add MPC8349E MDS device tree source file to arch/powerpc/boot/dts Add MPC8349E MDS device tree source file to arch/powerpc/boot/dts Signed-off-by: Kim Phillips Signed-off-by: Paul Mackerras --- arch/powerpc/boot/dts/mpc8349emds.dts | 328 ++++++++++++++++++++++++++ 1 file changed, 328 insertions(+) create mode 100644 arch/powerpc/boot/dts/mpc8349emds.dts diff --git a/arch/powerpc/boot/dts/mpc8349emds.dts b/arch/powerpc/boot/dts/mpc8349emds.dts new file mode 100644 index 000000000000..12f5dbf3055f --- /dev/null +++ b/arch/powerpc/boot/dts/mpc8349emds.dts @@ -0,0 +1,328 @@ +/* + * MPC8349E MDS Device Tree Source + * + * Copyright 2005, 2006 Freescale Semiconductor Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +/ { + model = "MPC8349EMDS"; + compatible = "MPC834xMDS"; + #address-cells = <1>; + #size-cells = <1>; + + cpus { + #cpus = <1>; + #address-cells = <1>; + #size-cells = <0>; + + PowerPC,8349@0 { + device_type = "cpu"; + reg = <0>; + d-cache-line-size = <20>; // 32 bytes + i-cache-line-size = <20>; // 32 bytes + d-cache-size = <8000>; // L1, 32K + i-cache-size = <8000>; // L1, 32K + timebase-frequency = <0>; // from bootloader + bus-frequency = <0>; // from bootloader + clock-frequency = <0>; // from bootloader + 32-bit; + }; + }; + + memory { + device_type = "memory"; + reg = <00000000 10000000>; // 256MB at 0 + }; + + soc8349@e0000000 { + #address-cells = <1>; + #size-cells = <1>; + #interrupt-cells = <2>; + device_type = "soc"; + ranges = <0 e0000000 00100000>; + reg = ; + bus-frequency = <0>; + + wdt@200 { + device_type = "watchdog"; + compatible = "mpc83xx_wdt"; + reg = <200 100>; + }; + + i2c@3000 { + device_type = "i2c"; + compatible = "fsl-i2c"; + reg = <3000 100>; + interrupts = ; + interrupt-parent = <700>; + dfsrr; + }; + + i2c@3100 { + device_type = "i2c"; + compatible = "fsl-i2c"; + reg = <3100 100>; + interrupts = ; + interrupt-parent = <700>; + dfsrr; + }; + + spi@7000 { + device_type = "spi"; + compatible = "mpc83xx_spi"; + reg = <7000 1000>; + interrupts = <10 8>; + interrupt-parent = <700>; + mode = <0>; + }; + + /* phy type (ULPI or SERIAL) are only types supportted for MPH */ + /* port = 0 or 1 */ + usb@22000 { + device_type = "usb"; + compatible = "fsl-usb2-mph"; + reg = <22000 1000>; + #address-cells = <1>; + #size-cells = <0>; + interrupt-parent = <700>; + interrupts = <27 2>; + phy_type = "ulpi"; + port1; + }; + /* phy type (ULPI, UTMI, UTMI_WIDE, SERIAL) */ + usb@23000 { + device_type = "usb"; + compatible = "fsl-usb2-dr"; + reg = <23000 1000>; + #address-cells = <1>; + #size-cells = <0>; + interrupt-parent = <700>; + interrupts = <26 2>; + phy_type = "ulpi"; + }; + + mdio@24520 { + device_type = "mdio"; + compatible = "gianfar"; + reg = <24520 20>; + #address-cells = <1>; + #size-cells = <0>; + linux,phandle = <24520>; + ethernet-phy@0 { + linux,phandle = <2452000>; + interrupt-parent = <700>; + interrupts = <11 2>; + reg = <0>; + device_type = "ethernet-phy"; + }; + ethernet-phy@1 { + linux,phandle = <2452001>; + interrupt-parent = <700>; + interrupts = <12 2>; + reg = <1>; + device_type = "ethernet-phy"; + }; + }; + + ethernet@24000 { + device_type = "network"; + model = "TSEC"; + compatible = "gianfar"; + reg = <24000 1000>; + address = [ 00 00 00 00 00 00 ]; + local-mac-address = [ 00 00 00 00 00 00 ]; + interrupts = <20 8 21 8 22 8>; + interrupt-parent = <700>; + phy-handle = <2452000>; + }; + + ethernet@25000 { + #address-cells = <1>; + #size-cells = <0>; + device_type = "network"; + model = "TSEC"; + compatible = "gianfar"; + reg = <25000 1000>; + address = [ 00 00 00 00 00 00 ]; + local-mac-address = [ 00 00 00 00 00 00 ]; + interrupts = <23 8 24 8 25 8>; + interrupt-parent = <700>; + phy-handle = <2452001>; + }; + + serial@4500 { + device_type = "serial"; + compatible = "ns16550"; + reg = <4500 100>; + clock-frequency = <0>; + interrupts = <9 8>; + interrupt-parent = <700>; + }; + + serial@4600 { + device_type = "serial"; + compatible = "ns16550"; + reg = <4600 100>; + clock-frequency = <0>; + interrupts = ; + interrupt-parent = <700>; + }; + + pci@8500 { + interrupt-map-mask = ; + interrupt-map = < + + /* IDSEL 0x11 */ + 8800 0 0 1 700 14 8 + 8800 0 0 2 700 15 8 + 8800 0 0 3 700 16 8 + 8800 0 0 4 700 17 8 + + /* IDSEL 0x12 */ + 9000 0 0 1 700 16 8 + 9000 0 0 2 700 17 8 + 9000 0 0 3 700 14 8 + 9000 0 0 4 700 15 8 + + /* IDSEL 0x13 */ + 9800 0 0 1 700 17 8 + 9800 0 0 2 700 14 8 + 9800 0 0 3 700 15 8 + 9800 0 0 4 700 16 8 + + /* IDSEL 0x15 */ + a800 0 0 1 700 14 8 + a800 0 0 2 700 15 8 + a800 0 0 3 700 16 8 + a800 0 0 4 700 17 8 + + /* IDSEL 0x16 */ + b000 0 0 1 700 17 8 + b000 0 0 2 700 14 8 + b000 0 0 3 700 15 8 + b000 0 0 4 700 16 8 + + /* IDSEL 0x17 */ + b800 0 0 1 700 16 8 + b800 0 0 2 700 17 8 + b800 0 0 3 700 14 8 + b800 0 0 4 700 15 8 + + /* IDSEL 0x18 */ + b000 0 0 1 700 15 8 + b000 0 0 2 700 16 8 + b000 0 0 3 700 17 8 + b000 0 0 4 700 14 8>; + interrupt-parent = <700>; + interrupts = <42 8>; + bus-range = <0 0>; + ranges = <02000000 0 a0000000 a0000000 0 10000000 + 42000000 0 80000000 80000000 0 10000000 + 01000000 0 00000000 e2000000 0 00100000>; + clock-frequency = <3f940aa>; + #interrupt-cells = <1>; + #size-cells = <2>; + #address-cells = <3>; + reg = <8500 100>; + compatible = "83xx"; + device_type = "pci"; + }; + + pci@8600 { + interrupt-map-mask = ; + interrupt-map = < + + /* IDSEL 0x11 */ + 8800 0 0 1 700 14 8 + 8800 0 0 2 700 15 8 + 8800 0 0 3 700 16 8 + 8800 0 0 4 700 17 8 + + /* IDSEL 0x12 */ + 9000 0 0 1 700 16 8 + 9000 0 0 2 700 17 8 + 9000 0 0 3 700 14 8 + 9000 0 0 4 700 15 8 + + /* IDSEL 0x13 */ + 9800 0 0 1 700 17 8 + 9800 0 0 2 700 14 8 + 9800 0 0 3 700 15 8 + 9800 0 0 4 700 16 8 + + /* IDSEL 0x15 */ + a800 0 0 1 700 14 8 + a800 0 0 2 700 15 8 + a800 0 0 3 700 16 8 + a800 0 0 4 700 17 8 + + /* IDSEL 0x16 */ + b000 0 0 1 700 17 8 + b000 0 0 2 700 14 8 + b000 0 0 3 700 15 8 + b000 0 0 4 700 16 8 + + /* IDSEL 0x17 */ + b800 0 0 1 700 16 8 + b800 0 0 2 700 17 8 + b800 0 0 3 700 14 8 + b800 0 0 4 700 15 8 + + /* IDSEL 0x18 */ + b000 0 0 1 700 15 8 + b000 0 0 2 700 16 8 + b000 0 0 3 700 17 8 + b000 0 0 4 700 14 8>; + interrupt-parent = <700>; + interrupts = <42 8>; + bus-range = <0 0>; + ranges = <02000000 0 b0000000 b0000000 0 10000000 + 42000000 0 90000000 90000000 0 10000000 + 01000000 0 00000000 e2100000 0 00100000>; + clock-frequency = <3f940aa>; + #interrupt-cells = <1>; + #size-cells = <2>; + #address-cells = <3>; + reg = <8600 100>; + compatible = "83xx"; + device_type = "pci"; + }; + + /* May need to remove if on a part without crypto engine */ + crypto@30000 { + device_type = "crypto"; + model = "SEC2"; + compatible = "talitos"; + reg = <30000 10000>; + interrupts = ; + interrupt-parent = <700>; + num-channels = <4>; + channel-fifo-len = <18>; + exec-units-mask = <0000007e>; + /* desc mask is for rev2.0, + * we need runtime fixup for >2.0 */ + descriptor-types-mask = <01010ebf>; + }; + + /* IPIC + * interrupts cell = + * sense values match linux IORESOURCE_IRQ_* defines: + * sense == 8: Level, low assertion + * sense == 2: Edge, high-to-low change + */ + pic@700 { + linux,phandle = <700>; + interrupt-controller; + #address-cells = <0>; + #interrupt-cells = <2>; + reg = <700 100>; + built-in; + device_type = "ipic"; + }; + }; +}; From 4b3afca9345f5beb9c607faeb2aef4f91dd91a13 Mon Sep 17 00:00:00 2001 From: Zang Roy-r61911 Date: Fri, 25 Aug 2006 16:43:25 +0800 Subject: [PATCH 395/488] [POWERPC] Add mpc7448hpc2 device tree source file This patch adds the mpc7448hpc2 device tree source file. Signed-off-by: Roy Zang Signed-off-by: Paul Mackerras --- arch/powerpc/boot/dts/mpc7448hpc2.dts | 190 ++++++++++++++++++++++++++ 1 file changed, 190 insertions(+) create mode 100644 arch/powerpc/boot/dts/mpc7448hpc2.dts diff --git a/arch/powerpc/boot/dts/mpc7448hpc2.dts b/arch/powerpc/boot/dts/mpc7448hpc2.dts new file mode 100644 index 000000000000..d7b985e6bd2f --- /dev/null +++ b/arch/powerpc/boot/dts/mpc7448hpc2.dts @@ -0,0 +1,190 @@ +/* + * MPC7448HPC2 (Taiga) board Device Tree Source + * + * Copyright 2006 Freescale Semiconductor Inc. + * 2006 Roy Zang . + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + + +/ { + model = "mpc7448hpc2"; + compatible = "mpc74xx"; + #address-cells = <1>; + #size-cells = <1>; + linux,phandle = <100>; + + cpus { + #cpus = <1>; + #address-cells = <1>; + #size-cells =<0>; + linux,phandle = <200>; + + PowerPC,7448@0 { + device_type = "cpu"; + reg = <0>; + d-cache-line-size = <20>; // 32 bytes + i-cache-line-size = <20>; // 32 bytes + d-cache-size = <8000>; // L1, 32K bytes + i-cache-size = <8000>; // L1, 32K bytes + timebase-frequency = <0>; // 33 MHz, from uboot + clock-frequency = <0>; // From U-Boot + bus-frequency = <0>; // From U-Boot + 32-bit; + linux,phandle = <201>; + linux,boot-cpu; + }; + }; + + memory { + device_type = "memory"; + linux,phandle = <300>; + reg = <00000000 20000000 // DDR2 512M at 0 + >; + }; + + tsi108@c0000000 { + #address-cells = <1>; + #size-cells = <1>; + #interrupt-cells = <2>; + device_type = "tsi-bridge"; + ranges = <00000000 c0000000 00010000>; + reg = ; + bus-frequency = <0>; + + i2c@7000 { + interrupt-parent = <7400>; + interrupts = ; + reg = <7000 400>; + device_type = "i2c"; + compatible = "tsi-i2c"; + }; + + mdio@6000 { + device_type = "mdio"; + compatible = "tsi-ethernet"; + + ethernet-phy@6000 { + linux,phandle = <6000>; + interrupt-parent = <7400>; + interrupts = <2 1>; + reg = <6000 50>; + phy-id = <8>; + device_type = "ethernet-phy"; + }; + + ethernet-phy@6400 { + linux,phandle = <6400>; + interrupt-parent = <7400>; + interrupts = <2 1>; + reg = <6000 50>; + phy-id = <9>; + device_type = "ethernet-phy"; + }; + + }; + + ethernet@6200 { + #size-cells = <0>; + device_type = "network"; + model = "TSI-ETH"; + compatible = "tsi-ethernet"; + reg = <6000 200>; + address = [ 00 06 D2 00 00 01 ]; + interrupts = <10 2>; + interrupt-parent = <7400>; + phy-handle = <6000>; + }; + + ethernet@6600 { + #address-cells = <1>; + #size-cells = <0>; + device_type = "network"; + model = "TSI-ETH"; + compatible = "tsi-ethernet"; + reg = <6400 200>; + address = [ 00 06 D2 00 00 02 ]; + interrupts = <11 2>; + interrupt-parent = <7400>; + phy-handle = <6400>; + }; + + serial@7808 { + device_type = "serial"; + compatible = "ns16550"; + reg = <7808 200>; + clock-frequency = <3f6b5a00>; + interrupts = ; + interrupt-parent = <7400>; + }; + + serial@7c08 { + device_type = "serial"; + compatible = "ns16550"; + reg = <7c08 200>; + clock-frequency = <3f6b5a00>; + interrupts = ; + interrupt-parent = <7400>; + }; + + pic@7400 { + linux,phandle = <7400>; + clock-frequency = <0>; + interrupt-controller; + #address-cells = <0>; + #interrupt-cells = <2>; + reg = <7400 400>; + built-in; + compatible = "chrp,open-pic"; + device_type = "open-pic"; + big-endian; + }; + pci@1000 { + compatible = "tsi10x"; + device_type = "pci"; + linux,phandle = <1000>; + #interrupt-cells = <1>; + #size-cells = <2>; + #address-cells = <3>; + reg = <1000 1000>; + bus-range = <0 0>; + ranges = <02000000 0 e0000000 e0000000 0 1A000000 + 01000000 0 00000000 fa000000 0 00010000>; + clock-frequency = <7f28154>; + interrupt-parent = <7400>; + interrupts = <17 2>; + interrupt-map-mask = ; + interrupt-map = < + + /* IDSEL 0x11 */ + 0800 0 0 1 7400 24 0 + 0800 0 0 2 7400 25 0 + 0800 0 0 3 7400 26 0 + 0800 0 0 4 7400 27 0 + + /* IDSEL 0x12 */ + 1000 0 0 1 7400 25 0 + 1000 0 0 2 7400 26 0 + 1000 0 0 3 7400 27 0 + 1000 0 0 4 7400 24 0 + + /* IDSEL 0x13 */ + 1800 0 0 1 7400 26 0 + 1800 0 0 2 7400 27 0 + 1800 0 0 3 7400 24 0 + 1800 0 0 4 7400 25 0 + + /* IDSEL 0x14 */ + 2000 0 0 1 7400 27 0 + 2000 0 0 2 7400 24 0 + 2000 0 0 3 7400 25 0 + 2000 0 0 4 7400 26 0 + >; + }; + }; + +}; From 8ec8f2e85c6b88b4a1641eb3902275bcf2c6d60a Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Mon, 28 Aug 2006 11:17:37 +1000 Subject: [PATCH 396/488] [POWERPC] Fix performance regression in IRQ radix tree locking When reworking the powerpc irq code, I figured out that we were using the radix tree in a racy way. As a temporary fix, I put a spinlock in there. However, this can have a significant impact on performances. This patch reworks that to use a smarter technique based on the fact that what we need is in fact a rwlock with extremely rare writers (thus optimized for the read path). Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/irq.c | 84 ++++++++++++++++++++++++++++++--------- 1 file changed, 66 insertions(+), 18 deletions(-) diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c index 7ee685433319..12c5971d6565 100644 --- a/arch/powerpc/kernel/irq.c +++ b/arch/powerpc/kernel/irq.c @@ -322,7 +322,8 @@ EXPORT_SYMBOL(do_softirq); static LIST_HEAD(irq_hosts); static spinlock_t irq_big_lock = SPIN_LOCK_UNLOCKED; - +static DEFINE_PER_CPU(unsigned int, irq_radix_reader); +static unsigned int irq_radix_writer; struct irq_map_entry irq_map[NR_IRQS]; static unsigned int irq_virq_count = NR_IRQS; static struct irq_host *irq_default_host; @@ -455,6 +456,58 @@ void irq_set_virq_count(unsigned int count) irq_virq_count = count; } +/* radix tree not lockless safe ! we use a brlock-type mecanism + * for now, until we can use a lockless radix tree + */ +static void irq_radix_wrlock(unsigned long *flags) +{ + unsigned int cpu, ok; + + spin_lock_irqsave(&irq_big_lock, *flags); + irq_radix_writer = 1; + smp_mb(); + do { + barrier(); + ok = 1; + for_each_possible_cpu(cpu) { + if (per_cpu(irq_radix_reader, cpu)) { + ok = 0; + break; + } + } + if (!ok) + cpu_relax(); + } while(!ok); +} + +static void irq_radix_wrunlock(unsigned long flags) +{ + smp_wmb(); + irq_radix_writer = 0; + spin_unlock_irqrestore(&irq_big_lock, flags); +} + +static void irq_radix_rdlock(unsigned long *flags) +{ + local_irq_save(*flags); + __get_cpu_var(irq_radix_reader) = 1; + smp_mb(); + if (likely(irq_radix_writer == 0)) + return; + __get_cpu_var(irq_radix_reader) = 0; + smp_wmb(); + spin_lock(&irq_big_lock); + __get_cpu_var(irq_radix_reader) = 1; + spin_unlock(&irq_big_lock); +} + +static void irq_radix_rdunlock(unsigned long flags) +{ + __get_cpu_var(irq_radix_reader) = 0; + local_irq_restore(flags); +} + + unsigned int irq_create_mapping(struct irq_host *host, irq_hw_number_t hwirq) { @@ -604,13 +657,9 @@ void irq_dispose_mapping(unsigned int virq) /* Check if radix tree allocated yet */ if (host->revmap_data.tree.gfp_mask == 0) break; - /* XXX radix tree not safe ! remove lock whem it becomes safe - * and use some RCU sync to make sure everything is ok before we - * can re-use that map entry - */ - spin_lock_irqsave(&irq_big_lock, flags); + irq_radix_wrlock(&flags); radix_tree_delete(&host->revmap_data.tree, hwirq); - spin_unlock_irqrestore(&irq_big_lock, flags); + irq_radix_wrunlock(flags); break; } @@ -677,25 +726,24 @@ unsigned int irq_radix_revmap(struct irq_host *host, if (tree->gfp_mask == 0) return irq_find_mapping(host, hwirq); - /* XXX Current radix trees are NOT SMP safe !!! Remove that lock - * when that is fixed (when Nick's patch gets in - */ - spin_lock_irqsave(&irq_big_lock, flags); - /* Now try to resolve */ + irq_radix_rdlock(&flags); ptr = radix_tree_lookup(tree, hwirq); + irq_radix_rdunlock(flags); + /* Found it, return */ if (ptr) { virq = ptr - irq_map; - goto bail; + return virq; } /* If not there, try to insert it */ virq = irq_find_mapping(host, hwirq); - if (virq != NO_IRQ) + if (virq != NO_IRQ) { + irq_radix_wrlock(&flags); radix_tree_insert(tree, hwirq, &irq_map[virq]); - bail: - spin_unlock_irqrestore(&irq_big_lock, flags); + irq_radix_wrunlock(flags); + } return virq; } @@ -806,12 +854,12 @@ static int irq_late_init(void) struct irq_host *h; unsigned long flags; - spin_lock_irqsave(&irq_big_lock, flags); + irq_radix_wrlock(&flags); list_for_each_entry(h, &irq_hosts, link) { if (h->revmap_type == IRQ_HOST_MAP_TREE) INIT_RADIX_TREE(&h->revmap_data.tree, GFP_ATOMIC); } - spin_unlock_irqrestore(&irq_big_lock, flags); + irq_radix_wrunlock(flags); return 0; } From 3efbdd136e52ee4028b5bb5b848a6043cf61cd6e Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Wed, 30 Aug 2006 08:58:00 +1000 Subject: [PATCH 397/488] [POWERPC] Fix MPIC sense codes in documentation The booting-without-of.txt had incorrect definition for the sense codes for an OpenPIC controller Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras --- Documentation/powerpc/booting-without-of.txt | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/Documentation/powerpc/booting-without-of.txt b/Documentation/powerpc/booting-without-of.txt index 8c48b8a27b9c..5c0ba235f5a5 100644 --- a/Documentation/powerpc/booting-without-of.txt +++ b/Documentation/powerpc/booting-without-of.txt @@ -1136,10 +1136,10 @@ Sense and level information should be encoded as follows: Devices connected to openPIC-compatible controllers should encode sense and polarity as follows: - 0 = high to low edge sensitive type enabled + 0 = low to high edge sensitive type enabled 1 = active low level sensitive type enabled - 2 = low to high edge sensitive type enabled - 3 = active high level sensitive type enabled + 2 = active high level sensitive type enabled + 3 = high to low edge sensitive type enabled ISA PIC interrupt controllers should adhere to the ISA PIC encodings listed below: From 1ad8f401b6e16e3ba8a70dcda466e7a0986f7e5e Mon Sep 17 00:00:00 2001 From: Nathan Scott Date: Wed, 30 Aug 2006 13:41:23 +1000 Subject: [PATCH 398/488] [XFS] Update the MAINTAINERS file entry for XFS. Signed-off-by: Nathan Scott --- MAINTAINERS | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/MAINTAINERS b/MAINTAINERS index 3bab239e82fe..25cd7073a20b 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -3296,10 +3296,11 @@ S: Maintained XFS FILESYSTEM P: Silicon Graphics Inc +P: Tim Shimmin, David Chatterton M: xfs-masters@oss.sgi.com -M: nathans@sgi.com L: xfs@oss.sgi.com W: http://oss.sgi.com/projects/xfs +T: git git://oss.sgi.com:8090/xfs/xfs-2.6 S: Supported X86 3-LEVEL PAGING (PAE) SUPPORT From 7288026b8671061aff7663b1766037b3f2573627 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Wed, 30 Aug 2006 13:41:58 +1000 Subject: [PATCH 399/488] [XFS] Fix char size overflow in bmap_alloc call for unwritten extent conversion. Since bma.conv is a char and XFS_BMAPI_CONVERT is 0x1000, bma.conv was always assigned zero. Spotted by the GNU C compiler (SVN version). SGI-PV: 947312 SGI-Modid: xfs-linux-melb:xfs-kern:26887a Signed-off-by: Adrian Bunk Signed-off-by: Nathan Scott --- fs/xfs/xfs_bmap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c index 3a6137539064..bf46fae303af 100644 --- a/fs/xfs/xfs_bmap.c +++ b/fs/xfs/xfs_bmap.c @@ -4993,7 +4993,7 @@ xfs_bmapi( bma.firstblock = *firstblock; bma.alen = alen; bma.off = aoff; - bma.conv = (flags & XFS_BMAPI_CONVERT); + bma.conv = !!(flags & XFS_BMAPI_CONVERT); bma.wasdel = wasdelay; bma.minlen = minlen; bma.low = flist->xbf_low; From b9ac86727fc02cc7117ef3fe518a4d51cd573c82 Mon Sep 17 00:00:00 2001 From: Sridhar Samudrala Date: Mon, 28 Aug 2006 13:53:01 -0700 Subject: [PATCH 400/488] [SCTP]: Fix sctp_primitive_ABORT() call in sctp_close(). With the recent fix, the callers of sctp_primitive_ABORT() need to create an ABORT chunk and pass it as an argument rather than msghdr that was passed earlier. Signed-off-by: Sridhar Samudrala Signed-off-by: David S. Miller --- net/sctp/socket.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/net/sctp/socket.c b/net/sctp/socket.c index fde3f55bfd4b..dab15949958e 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -1289,9 +1289,13 @@ SCTP_STATIC void sctp_close(struct sock *sk, long timeout) } } - if (sock_flag(sk, SOCK_LINGER) && !sk->sk_lingertime) - sctp_primitive_ABORT(asoc, NULL); - else + if (sock_flag(sk, SOCK_LINGER) && !sk->sk_lingertime) { + struct sctp_chunk *chunk; + + chunk = sctp_make_abort_user(asoc, NULL, 0); + if (chunk) + sctp_primitive_ABORT(asoc, chunk); + } else sctp_primitive_SHUTDOWN(asoc, NULL); } From 8fb6f732c389847dece403b7470d6d3d2778804a Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Mon, 28 Aug 2006 22:12:54 -0700 Subject: [PATCH 401/488] [E100]: Add module option to ignore bad EEPROM checksums. Several people run into the situation where the E100 EEPROM contents are fine, but the checksum hasn't been set properly. This renders the device useless for them even though it would function correctly. The default is off, which retains the current behavior. Signed-off-by: David S. Miller --- drivers/net/e100.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/net/e100.c b/drivers/net/e100.c index 91ef5f2fd768..ce850f1078b5 100644 --- a/drivers/net/e100.c +++ b/drivers/net/e100.c @@ -173,8 +173,11 @@ MODULE_LICENSE("GPL"); MODULE_VERSION(DRV_VERSION); static int debug = 3; +static int eeprom_bad_csum_allow = 0; module_param(debug, int, 0); +module_param(eeprom_bad_csum_allow, int, 0); MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)"); +MODULE_PARM_DESC(eeprom_bad_csum_allow, "Allow bad eeprom checksums"); #define DPRINTK(nlevel, klevel, fmt, args...) \ (void)((NETIF_MSG_##nlevel & nic->msg_enable) && \ printk(KERN_##klevel PFX "%s: %s: " fmt, nic->netdev->name, \ @@ -756,7 +759,8 @@ static int e100_eeprom_load(struct nic *nic) checksum = le16_to_cpu(0xBABA - checksum); if(checksum != nic->eeprom[nic->eeprom_wc - 1]) { DPRINTK(PROBE, ERR, "EEPROM corrupted\n"); - return -EAGAIN; + if (!eeprom_bad_csum_allow) + return -EAGAIN; } return 0; From 76d0cc1b64e1686b2b53e081c94142dd99f01ec5 Mon Sep 17 00:00:00 2001 From: Lv Liangying Date: Tue, 29 Aug 2006 00:00:47 -0700 Subject: [PATCH 402/488] [IPV6]: SNMPv2 "ipv6IfStatsInAddrErrors" counter error When I tested Linux kernel 2.6.17.7 about statistics "ipv6IfStatsInAddrErrors", found that this counter couldn't increase correctly. The criteria is RFC2465: ipv6IfStatsInAddrErrors OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of input datagrams discarded because the IPv6 address in their IPv6 header's destination field was not a valid address to be received at this entity. This count includes invalid addresses (e.g., ::0) and unsupported addresses (e.g., addresses with unallocated prefixes). For entities which are not IPv6 routers and therefore do not forward datagrams, this counter includes datagrams discarded because the destination address was not a local address." ::= { ipv6IfStatsEntry 5 } When I send packet to host with destination that is ether invalid address(::0) or unsupported addresses(1::1), the Linux kernel just discard the packet, and the counter doesn't increase(in the function ip6_pkt_discard). Signed-off-by: Lv Liangying Signed-off-by: David S. Miller --- net/ipv6/route.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 4b163711f3a8..d9baca062d24 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -1532,6 +1532,10 @@ int ipv6_route_ioctl(unsigned int cmd, void __user *arg) static int ip6_pkt_discard(struct sk_buff *skb) { + int type = ipv6_addr_type(&skb->nh.ipv6h->daddr); + if (type == IPV6_ADDR_ANY || type == IPV6_ADDR_RESERVED) + IP6_INC_STATS(IPSTATS_MIB_INADDRERRORS); + IP6_INC_STATS(IPSTATS_MIB_OUTNOROUTES); icmpv6_send(skb, ICMPV6_DEST_UNREACH, ICMPV6_NOROUTE, 0, skb->dev); kfree_skb(skb); From 3fdf3f0c99e90e167f0d0643fcc8739e27456697 Mon Sep 17 00:00:00 2001 From: Daikichi Osuga Date: Tue, 29 Aug 2006 02:01:44 -0700 Subject: [PATCH 403/488] [TCP]: Two RFC3465 Appropriate Byte Count fixes. 1) fix slow start after retransmit timeout 2) fix case of L=2*SMSS acked bytes comparison Signed-off-by: Daikichi Osuga Signed-off-by: David S. Miller --- net/ipv4/tcp_cong.c | 2 +- net/ipv4/tcp_input.c | 9 +++++++-- 2 files changed, 8 insertions(+), 3 deletions(-) diff --git a/net/ipv4/tcp_cong.c b/net/ipv4/tcp_cong.c index 5765f9d03174..7ff2e4273a7c 100644 --- a/net/ipv4/tcp_cong.c +++ b/net/ipv4/tcp_cong.c @@ -189,7 +189,7 @@ void tcp_slow_start(struct tcp_sock *tp) return; /* We MAY increase by 2 if discovered delayed ack */ - if (sysctl_tcp_abc > 1 && tp->bytes_acked > 2*tp->mss_cache) { + if (sysctl_tcp_abc > 1 && tp->bytes_acked >= 2*tp->mss_cache) { if (tp->snd_cwnd < tp->snd_cwnd_clamp) tp->snd_cwnd++; } diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 104af5d5bcbc..111ff39a08c5 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -2505,8 +2505,13 @@ static int tcp_ack(struct sock *sk, struct sk_buff *skb, int flag) if (before(ack, prior_snd_una)) goto old_ack; - if (sysctl_tcp_abc && icsk->icsk_ca_state < TCP_CA_CWR) - tp->bytes_acked += ack - prior_snd_una; + if (sysctl_tcp_abc) { + if (icsk->icsk_ca_state < TCP_CA_CWR) + tp->bytes_acked += ack - prior_snd_una; + else if (icsk->icsk_ca_state == TCP_CA_Loss) + /* we assume just one segment left network */ + tp->bytes_acked += min(ack - prior_snd_una, tp->mss_cache); + } if (!(flag&FLAG_SLOWPATH) && after(ack, prior_snd_una)) { /* Window is constant, pure forward advance. From fab2caf62ed03d83bd3a3598b859c3c345a8e8b5 Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Tue, 29 Aug 2006 02:15:24 -0700 Subject: [PATCH 404/488] [NETLINK]: Call panic if nl_table allocation fails This patch makes crash happen if initialization of nl_table fails in initcalls. It is better than getting use after free crash later. Signed-off-by: Akinobu Mita Signed-off-by: David S. Miller --- net/netlink/af_netlink.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c index b85c1f9f1288..8b85036ba8e3 100644 --- a/net/netlink/af_netlink.c +++ b/net/netlink/af_netlink.c @@ -1273,8 +1273,7 @@ netlink_kernel_create(int unit, unsigned int groups, struct netlink_sock *nlk; unsigned long *listeners = NULL; - if (!nl_table) - return NULL; + BUG_ON(!nl_table); if (unit<0 || unit>=MAX_LINKS) return NULL; @@ -1745,11 +1744,8 @@ static int __init netlink_proto_init(void) netlink_skb_parms_too_large(); nl_table = kcalloc(MAX_LINKS, sizeof(*nl_table), GFP_KERNEL); - if (!nl_table) { -enomem: - printk(KERN_CRIT "netlink_init: Cannot allocate nl_table\n"); - return -ENOMEM; - } + if (!nl_table) + goto panic; if (num_physpages >= (128 * 1024)) max = num_physpages >> (21 - PAGE_SHIFT); @@ -1769,7 +1765,7 @@ enomem: nl_pid_hash_free(nl_table[i].hash.table, 1 * sizeof(*hash->table)); kfree(nl_table); - goto enomem; + goto panic; } memset(hash->table, 0, 1 * sizeof(*hash->table)); hash->max_shift = order; @@ -1786,6 +1782,8 @@ enomem: rtnetlink_init(); out: return err; +panic: + panic("netlink_init: Cannot allocate nl_table\n"); } core_initcall(netlink_proto_init); From 57f5f544f58ffa1d6c38630d0522c9c0be67c533 Mon Sep 17 00:00:00 2001 From: Keir Fraser Date: Tue, 29 Aug 2006 02:43:49 -0700 Subject: [PATCH 405/488] [IPV6]: ipv6_add_addr should install dstentry earlier ipv6_add_addr allocates a struct inet6_ifaddr and a dstentry, but it doesn't install the dstentry in ifa->rt until after it releases the addrconf_hash_lock. This means other CPUs will be able to see the new address while it hasn't been initialized completely yet. One possible fix would be to grab the ifp->lock spinlock when creating the address struct; a simpler fix is to just move the assignment. Acked-by: jbeulich@novell.com Acked-by: okir@suse.de Acked-by: YOSHIFUJI Hideaki Signed-off-by: David S. Miller --- net/ipv6/addrconf.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 0c5042e7380d..c7852b38e03e 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -578,6 +578,8 @@ ipv6_add_addr(struct inet6_dev *idev, const struct in6_addr *addr, int pfxlen, ifa->flags = flags | IFA_F_TENTATIVE; ifa->cstamp = ifa->tstamp = jiffies; + ifa->rt = rt; + ifa->idev = idev; in6_dev_hold(idev); /* For caller */ @@ -603,8 +605,6 @@ ipv6_add_addr(struct inet6_dev *idev, const struct in6_addr *addr, int pfxlen, } #endif - ifa->rt = rt; - in6_ifa_hold(ifa); write_unlock(&idev->lock); out2: From ee1377c3eef4238d89b2f99fa4d0bbbad3078b64 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Tue, 29 Aug 2006 21:18:45 -0700 Subject: [PATCH 406/488] [STRIP]: Fix neighbour table refcount leak. Found by inspection. The STRIP driver does neigh_lookup() but never releases. This driver shouldn't being doing gratuitous arp anyway. Untested, obviously, because of lack of hardware. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller --- drivers/net/wireless/strip.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/strip.c b/drivers/net/wireless/strip.c index fd31885c6844..ccaf28e8db0a 100644 --- a/drivers/net/wireless/strip.c +++ b/drivers/net/wireless/strip.c @@ -467,6 +467,7 @@ static int arp_query(unsigned char *haddr, u32 paddr, struct net_device *dev) { struct neighbour *neighbor_entry; + int ret = 0; neighbor_entry = neigh_lookup(&arp_tbl, &paddr, dev); @@ -474,10 +475,11 @@ static int arp_query(unsigned char *haddr, u32 paddr, neighbor_entry->used = jiffies; if (neighbor_entry->nud_state & NUD_VALID) { memcpy(haddr, neighbor_entry->ha, dev->addr_len); - return 1; + ret = 1; } + neigh_release(neighbor_entry); } - return 0; + return ret; } static void DumpData(char *msg, struct strip *strip_info, __u8 * ptr, From 47f2c3604f47579ac5c173f8b402dc6cd8e2e8fa Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Mon, 28 Aug 2006 00:33:03 -0700 Subject: [PATCH 407/488] [SPARC64]: Fix X server hangs due to large pages. This problem was introduced by changeset 14778d9072e53d2171f66ffd9657daff41acfaed Unlike the hugetlb code paths, the normal fault code is not setup to propagate PTE changes for large page sizes correctly like the ones we make for I/O mappings in io_remap_pfn_range(). It is absolutely necessary to update all sub-ptes of a largepage mapping on a fault. Adding special handling for this would add considerably complexity to tlb_batch_add(). So let's just side-step the issue and forcefully dirty any writable PTEs created by io_remap_pfn_range(). The only other real option would be to disable to large PTE code of io_remap_pfn_range() and we really don't want to do that. Much thanks to Mikael Pettersson for tracking down this problem and testing debug patches. Signed-off-by: David S. Miller --- arch/sparc64/mm/generic.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/sparc64/mm/generic.c b/arch/sparc64/mm/generic.c index 8cb06205d265..af9d81db0b38 100644 --- a/arch/sparc64/mm/generic.c +++ b/arch/sparc64/mm/generic.c @@ -69,6 +69,8 @@ static inline void io_remap_pte_range(struct mm_struct *mm, pte_t * pte, } else offset += PAGE_SIZE; + if (pte_write(entry)) + entry = pte_mkdirty(entry); do { BUG_ON(!pte_none(*pte)); set_pte_at(mm, address, pte, entry); From 404dda854b8bb04df72405d5088fa3e6100aef36 Mon Sep 17 00:00:00 2001 From: Krzysztof Helt Date: Mon, 28 Aug 2006 23:28:16 -0700 Subject: [PATCH 408/488] [SUNLANCE]: Fix probing problem. The current probe table causes ledma and lebuffer "le" devices to get probed twice which is not what we want. Match just "le" and look directly at the parent to get the correct top-level node information. Signed-off-by: Krzysztof Helt Signed-off-by: David S. Miller --- drivers/net/sunlance.c | 29 ++++++++++++----------------- 1 file changed, 12 insertions(+), 17 deletions(-) diff --git a/drivers/net/sunlance.c b/drivers/net/sunlance.c index 0e3fdf7c6dd3..ec0413609f36 100644 --- a/drivers/net/sunlance.c +++ b/drivers/net/sunlance.c @@ -1566,20 +1566,21 @@ static int __exit sunlance_sun4_remove(void) static int __devinit sunlance_sbus_probe(struct of_device *dev, const struct of_device_id *match) { struct sbus_dev *sdev = to_sbus_device(&dev->dev); - struct device_node *dp = dev->node; int err; - if (!strcmp(dp->name, "le")) { + if (sdev->parent) { + struct of_device *parent = &sdev->parent->ofdev; + + if (!strcmp(parent->node->name, "ledma")) { + struct sbus_dma *ledma = find_ledma(to_sbus_device(&parent->dev)); + + err = sparc_lance_probe_one(sdev, ledma, NULL); + } else if (!strcmp(parent->node->name, "lebuffer")) { + err = sparc_lance_probe_one(sdev, NULL, to_sbus_device(&parent->dev)); + } else + err = sparc_lance_probe_one(sdev, NULL, NULL); + } else err = sparc_lance_probe_one(sdev, NULL, NULL); - } else if (!strcmp(dp->name, "ledma")) { - struct sbus_dma *ledma = find_ledma(sdev); - - err = sparc_lance_probe_one(sdev->child, ledma, NULL); - } else { - BUG_ON(strcmp(dp->name, "lebuffer")); - - err = sparc_lance_probe_one(sdev->child, NULL, sdev); - } return err; } @@ -1604,12 +1605,6 @@ static struct of_device_id sunlance_sbus_match[] = { { .name = "le", }, - { - .name = "ledma", - }, - { - .name = "lebuffer", - }, {}, }; From 7233593b7844c2db930594ee9c0c872a6900bfcc Mon Sep 17 00:00:00 2001 From: Zang Roy-r61911 Date: Fri, 25 Aug 2006 14:16:30 +1000 Subject: [PATCH 409/488] [POWERPC] Support for "weird" MPICs and fixup mpc7448_hpc2 This adds a new hardware information table for mpic. This enables the mpic code to deal with mpic controllers with different register layouts and hardware behaviours. This introduces CONFIG_MPIC_WEIRD. For boards with non standard mpic controllers, select CONFIG_MPIC_WEIRD and add its hardware information in the mpic_infos[] array. TSI108/109 PIC takes the first index of weird hardware information table. :) The table can be extended. The Tsi108/109 PIC looks like standard OpenPIC but, in fact, is different in register mapping and behavior. The patch does not affect the behavior of standard mpic. If CONFIG_MPIC_WEIRD is not defined, the code is essentially identical to the current code. [benh@kernel.crashing.org: This patch is a slightly cleaned up version of Zang Roy's support for the TSI108 MPIC variant. It also fixes up MPC7448_hpc2 to use the new version of the type macros and changes the way MPIC is selected in Kconfig to better match what is done for other system devices. ] Signed-off-by: Roy Zang Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras --- arch/powerpc/Kconfig | 20 +- arch/powerpc/platforms/embedded6xx/Kconfig | 1 + .../platforms/embedded6xx/mpc7448_hpc2.c | 2 +- arch/powerpc/sysdev/mpic.c | 223 +++++++++++++----- include/asm-powerpc/mpic.h | 125 ++++++++++ 5 files changed, 305 insertions(+), 66 deletions(-) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index abb325eb8f75..4d4b6fb156e1 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -354,6 +354,7 @@ endchoice config PPC_PSERIES depends on PPC_MULTIPLATFORM && PPC64 bool "IBM pSeries & new (POWER5-based) iSeries" + select MPIC select PPC_I8259 select PPC_RTAS select RTAS_ERROR_LOGGING @@ -363,6 +364,7 @@ config PPC_PSERIES config PPC_CHRP bool "Common Hardware Reference Platform (CHRP) based machines" depends on PPC_MULTIPLATFORM && PPC32 + select MPIC select PPC_I8259 select PPC_INDIRECT_PCI select PPC_RTAS @@ -373,6 +375,7 @@ config PPC_CHRP config PPC_PMAC bool "Apple PowerMac based machines" depends on PPC_MULTIPLATFORM + select MPIC select PPC_INDIRECT_PCI if PPC32 select PPC_MPC106 if PPC32 default y @@ -380,6 +383,7 @@ config PPC_PMAC config PPC_PMAC64 bool depends on PPC_PMAC && POWER4 + select MPIC select U3_DART select MPIC_BROKEN_U3 select GENERIC_TBSYNC @@ -389,6 +393,7 @@ config PPC_PMAC64 config PPC_PREP bool "PowerPC Reference Platform (PReP) based machines" depends on PPC_MULTIPLATFORM && PPC32 && BROKEN + select MPIC select PPC_I8259 select PPC_INDIRECT_PCI select PPC_UDBG_16550 @@ -397,6 +402,7 @@ config PPC_PREP config PPC_MAPLE depends on PPC_MULTIPLATFORM && PPC64 bool "Maple 970FX Evaluation Board" + select MPIC select U3_DART select MPIC_BROKEN_U3 select GENERIC_TBSYNC @@ -439,12 +445,6 @@ config U3_DART depends on PPC_MULTIPLATFORM && PPC64 default n -config MPIC - depends on PPC_PSERIES || PPC_PMAC || PPC_MAPLE || PPC_CHRP \ - || MPC7448HPC2 - bool - default y - config PPC_RTAS bool default n @@ -812,6 +812,14 @@ config GENERIC_ISA_DMA depends on PPC64 || POWER4 || 6xx && !CPM2 default y +config MPIC + bool + default n + +config MPIC_WEIRD + bool + default n + config PPC_I8259 bool default n diff --git a/arch/powerpc/platforms/embedded6xx/Kconfig b/arch/powerpc/platforms/embedded6xx/Kconfig index ba07a9a7c039..234a861870a8 100644 --- a/arch/powerpc/platforms/embedded6xx/Kconfig +++ b/arch/powerpc/platforms/embedded6xx/Kconfig @@ -80,6 +80,7 @@ config MPC7448HPC2 select DEFAULT_UIMAGE select PPC_UDBG_16550 select MPIC + select MPIC_WEIRD help Select MPC7448HPC2 if configuring for Freescale MPC7448HPC2 (Taiga) platform diff --git a/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c b/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c index ed00ed2455dd..5d393eb94935 100644 --- a/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c +++ b/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c @@ -215,7 +215,7 @@ static void __init mpc7448_hpc2_init_IRQ(void) mpic = mpic_alloc(tsi_pic, mpic_paddr, MPIC_PRIMARY | MPIC_BIG_ENDIAN | MPIC_WANTS_RESET | - MPIC_SPV_EOI | MPIC_MOD_ID(MPIC_ID_TSI108), + MPIC_SPV_EOI | MPIC_NO_PTHROU_DIS | MPIC_REGSET_TSI108, 0, /* num_sources used */ 0, /* num_sources used */ "Tsi108_PIC"); diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c index 6e0281afa6c3..b604926401f5 100644 --- a/arch/powerpc/sysdev/mpic.c +++ b/arch/powerpc/sysdev/mpic.c @@ -54,6 +54,94 @@ static DEFINE_SPINLOCK(mpic_lock); #endif #endif +#ifdef CONFIG_MPIC_WEIRD +static u32 mpic_infos[][MPIC_IDX_END] = { + [0] = { /* Original OpenPIC compatible MPIC */ + MPIC_GREG_BASE, + MPIC_GREG_FEATURE_0, + MPIC_GREG_GLOBAL_CONF_0, + MPIC_GREG_VENDOR_ID, + MPIC_GREG_IPI_VECTOR_PRI_0, + MPIC_GREG_IPI_STRIDE, + MPIC_GREG_SPURIOUS, + MPIC_GREG_TIMER_FREQ, + + MPIC_TIMER_BASE, + MPIC_TIMER_STRIDE, + MPIC_TIMER_CURRENT_CNT, + MPIC_TIMER_BASE_CNT, + MPIC_TIMER_VECTOR_PRI, + MPIC_TIMER_DESTINATION, + + MPIC_CPU_BASE, + MPIC_CPU_STRIDE, + MPIC_CPU_IPI_DISPATCH_0, + MPIC_CPU_IPI_DISPATCH_STRIDE, + MPIC_CPU_CURRENT_TASK_PRI, + MPIC_CPU_WHOAMI, + MPIC_CPU_INTACK, + MPIC_CPU_EOI, + + MPIC_IRQ_BASE, + MPIC_IRQ_STRIDE, + MPIC_IRQ_VECTOR_PRI, + MPIC_VECPRI_VECTOR_MASK, + MPIC_VECPRI_POLARITY_POSITIVE, + MPIC_VECPRI_POLARITY_NEGATIVE, + MPIC_VECPRI_SENSE_LEVEL, + MPIC_VECPRI_SENSE_EDGE, + MPIC_VECPRI_POLARITY_MASK, + MPIC_VECPRI_SENSE_MASK, + MPIC_IRQ_DESTINATION + }, + [1] = { /* Tsi108/109 PIC */ + TSI108_GREG_BASE, + TSI108_GREG_FEATURE_0, + TSI108_GREG_GLOBAL_CONF_0, + TSI108_GREG_VENDOR_ID, + TSI108_GREG_IPI_VECTOR_PRI_0, + TSI108_GREG_IPI_STRIDE, + TSI108_GREG_SPURIOUS, + TSI108_GREG_TIMER_FREQ, + + TSI108_TIMER_BASE, + TSI108_TIMER_STRIDE, + TSI108_TIMER_CURRENT_CNT, + TSI108_TIMER_BASE_CNT, + TSI108_TIMER_VECTOR_PRI, + TSI108_TIMER_DESTINATION, + + TSI108_CPU_BASE, + TSI108_CPU_STRIDE, + TSI108_CPU_IPI_DISPATCH_0, + TSI108_CPU_IPI_DISPATCH_STRIDE, + TSI108_CPU_CURRENT_TASK_PRI, + TSI108_CPU_WHOAMI, + TSI108_CPU_INTACK, + TSI108_CPU_EOI, + + TSI108_IRQ_BASE, + TSI108_IRQ_STRIDE, + TSI108_IRQ_VECTOR_PRI, + TSI108_VECPRI_VECTOR_MASK, + TSI108_VECPRI_POLARITY_POSITIVE, + TSI108_VECPRI_POLARITY_NEGATIVE, + TSI108_VECPRI_SENSE_LEVEL, + TSI108_VECPRI_SENSE_EDGE, + TSI108_VECPRI_POLARITY_MASK, + TSI108_VECPRI_SENSE_MASK, + TSI108_IRQ_DESTINATION + }, +}; + +#define MPIC_INFO(name) mpic->hw_set[MPIC_IDX_##name] + +#else /* CONFIG_MPIC_WEIRD */ + +#define MPIC_INFO(name) MPIC_##name + +#endif /* CONFIG_MPIC_WEIRD */ + /* * Register accessor functions */ @@ -80,7 +168,8 @@ static inline void _mpic_write(unsigned int be, volatile u32 __iomem *base, static inline u32 _mpic_ipi_read(struct mpic *mpic, unsigned int ipi) { unsigned int be = (mpic->flags & MPIC_BIG_ENDIAN) != 0; - unsigned int offset = MPIC_GREG_IPI_VECTOR_PRI_0 + (ipi * 0x10); + unsigned int offset = MPIC_INFO(GREG_IPI_VECTOR_PRI_0) + + (ipi * MPIC_INFO(GREG_IPI_STRIDE)); if (mpic->flags & MPIC_BROKEN_IPI) be = !be; @@ -89,7 +178,8 @@ static inline u32 _mpic_ipi_read(struct mpic *mpic, unsigned int ipi) static inline void _mpic_ipi_write(struct mpic *mpic, unsigned int ipi, u32 value) { - unsigned int offset = MPIC_GREG_IPI_VECTOR_PRI_0 + (ipi * 0x10); + unsigned int offset = MPIC_INFO(GREG_IPI_VECTOR_PRI_0) + + (ipi * MPIC_INFO(GREG_IPI_STRIDE)); _mpic_write(mpic->flags & MPIC_BIG_ENDIAN, mpic->gregs, offset, value); } @@ -120,7 +210,7 @@ static inline u32 _mpic_irq_read(struct mpic *mpic, unsigned int src_no, unsigne unsigned int idx = src_no & mpic->isu_mask; return _mpic_read(mpic->flags & MPIC_BIG_ENDIAN, mpic->isus[isu], - reg + (idx * MPIC_IRQ_STRIDE)); + reg + (idx * MPIC_INFO(IRQ_STRIDE))); } static inline void _mpic_irq_write(struct mpic *mpic, unsigned int src_no, @@ -130,7 +220,7 @@ static inline void _mpic_irq_write(struct mpic *mpic, unsigned int src_no, unsigned int idx = src_no & mpic->isu_mask; _mpic_write(mpic->flags & MPIC_BIG_ENDIAN, mpic->isus[isu], - reg + (idx * MPIC_IRQ_STRIDE), value); + reg + (idx * MPIC_INFO(IRQ_STRIDE)), value); } #define mpic_read(b,r) _mpic_read(mpic->flags & MPIC_BIG_ENDIAN,(b),(r)) @@ -156,8 +246,8 @@ static void __init mpic_test_broken_ipi(struct mpic *mpic) { u32 r; - mpic_write(mpic->gregs, MPIC_GREG_IPI_VECTOR_PRI_0, MPIC_VECPRI_MASK); - r = mpic_read(mpic->gregs, MPIC_GREG_IPI_VECTOR_PRI_0); + mpic_write(mpic->gregs, MPIC_INFO(GREG_IPI_VECTOR_PRI_0), MPIC_VECPRI_MASK); + r = mpic_read(mpic->gregs, MPIC_INFO(GREG_IPI_VECTOR_PRI_0)); if (r == le32_to_cpu(MPIC_VECPRI_MASK)) { printk(KERN_INFO "mpic: Detected reversed IPI registers\n"); @@ -394,8 +484,8 @@ static inline struct mpic * mpic_from_irq(unsigned int irq) /* Send an EOI */ static inline void mpic_eoi(struct mpic *mpic) { - mpic_cpu_write(MPIC_CPU_EOI, 0); - (void)mpic_cpu_read(MPIC_CPU_WHOAMI); + mpic_cpu_write(MPIC_INFO(CPU_EOI), 0); + (void)mpic_cpu_read(MPIC_INFO(CPU_WHOAMI)); } #ifdef CONFIG_SMP @@ -419,8 +509,8 @@ static void mpic_unmask_irq(unsigned int irq) DBG("%p: %s: enable_irq: %d (src %d)\n", mpic, mpic->name, irq, src); - mpic_irq_write(src, MPIC_IRQ_VECTOR_PRI, - mpic_irq_read(src, MPIC_IRQ_VECTOR_PRI) & + mpic_irq_write(src, MPIC_INFO(IRQ_VECTOR_PRI), + mpic_irq_read(src, MPIC_INFO(IRQ_VECTOR_PRI)) & ~MPIC_VECPRI_MASK); /* make sure mask gets to controller before we return to user */ do { @@ -428,7 +518,7 @@ static void mpic_unmask_irq(unsigned int irq) printk(KERN_ERR "mpic_enable_irq timeout\n"); break; } - } while(mpic_irq_read(src, MPIC_IRQ_VECTOR_PRI) & MPIC_VECPRI_MASK); + } while(mpic_irq_read(src, MPIC_INFO(IRQ_VECTOR_PRI)) & MPIC_VECPRI_MASK); } static void mpic_mask_irq(unsigned int irq) @@ -439,8 +529,8 @@ static void mpic_mask_irq(unsigned int irq) DBG("%s: disable_irq: %d (src %d)\n", mpic->name, irq, src); - mpic_irq_write(src, MPIC_IRQ_VECTOR_PRI, - mpic_irq_read(src, MPIC_IRQ_VECTOR_PRI) | + mpic_irq_write(src, MPIC_INFO(IRQ_VECTOR_PRI), + mpic_irq_read(src, MPIC_INFO(IRQ_VECTOR_PRI)) | MPIC_VECPRI_MASK); /* make sure mask gets to controller before we return to user */ @@ -449,7 +539,7 @@ static void mpic_mask_irq(unsigned int irq) printk(KERN_ERR "mpic_enable_irq timeout\n"); break; } - } while(!(mpic_irq_read(src, MPIC_IRQ_VECTOR_PRI) & MPIC_VECPRI_MASK)); + } while(!(mpic_irq_read(src, MPIC_INFO(IRQ_VECTOR_PRI)) & MPIC_VECPRI_MASK)); } static void mpic_end_irq(unsigned int irq) @@ -560,24 +650,28 @@ static void mpic_set_affinity(unsigned int irq, cpumask_t cpumask) cpus_and(tmp, cpumask, cpu_online_map); - mpic_irq_write(src, MPIC_IRQ_DESTINATION, + mpic_irq_write(src, MPIC_INFO(IRQ_DESTINATION), mpic_physmask(cpus_addr(tmp)[0])); } -static unsigned int mpic_type_to_vecpri(unsigned int type) +static unsigned int mpic_type_to_vecpri(struct mpic *mpic, unsigned int type) { /* Now convert sense value */ switch(type & IRQ_TYPE_SENSE_MASK) { case IRQ_TYPE_EDGE_RISING: - return MPIC_VECPRI_SENSE_EDGE | MPIC_VECPRI_POLARITY_POSITIVE; + return MPIC_INFO(VECPRI_SENSE_EDGE) | + MPIC_INFO(VECPRI_POLARITY_POSITIVE); case IRQ_TYPE_EDGE_FALLING: case IRQ_TYPE_EDGE_BOTH: - return MPIC_VECPRI_SENSE_EDGE | MPIC_VECPRI_POLARITY_NEGATIVE; + return MPIC_INFO(VECPRI_SENSE_EDGE) | + MPIC_INFO(VECPRI_POLARITY_NEGATIVE); case IRQ_TYPE_LEVEL_HIGH: - return MPIC_VECPRI_SENSE_LEVEL | MPIC_VECPRI_POLARITY_POSITIVE; + return MPIC_INFO(VECPRI_SENSE_LEVEL) | + MPIC_INFO(VECPRI_POLARITY_POSITIVE); case IRQ_TYPE_LEVEL_LOW: default: - return MPIC_VECPRI_SENSE_LEVEL | MPIC_VECPRI_POLARITY_NEGATIVE; + return MPIC_INFO(VECPRI_SENSE_LEVEL) | + MPIC_INFO(VECPRI_POLARITY_NEGATIVE); } } @@ -609,13 +703,14 @@ static int mpic_set_irq_type(unsigned int virq, unsigned int flow_type) vecpri = MPIC_VECPRI_POLARITY_POSITIVE | MPIC_VECPRI_SENSE_EDGE; else - vecpri = mpic_type_to_vecpri(flow_type); + vecpri = mpic_type_to_vecpri(mpic, flow_type); - vold = mpic_irq_read(src, MPIC_IRQ_VECTOR_PRI); - vnew = vold & ~(MPIC_VECPRI_POLARITY_MASK | MPIC_VECPRI_SENSE_MASK); + vold = mpic_irq_read(src, MPIC_INFO(IRQ_VECTOR_PRI)); + vnew = vold & ~(MPIC_INFO(VECPRI_POLARITY_MASK) | + MPIC_INFO(VECPRI_SENSE_MASK)); vnew |= vecpri; if (vold != vnew) - mpic_irq_write(src, MPIC_IRQ_VECTOR_PRI, vnew); + mpic_irq_write(src, MPIC_INFO(IRQ_VECTOR_PRI), vnew); return 0; } @@ -798,17 +893,22 @@ struct mpic * __init mpic_alloc(struct device_node *node, mpic->irq_count = irq_count; mpic->num_sources = 0; /* so far */ +#ifdef CONFIG_MPIC_WEIRD + mpic->hw_set = mpic_infos[MPIC_GET_REGSET(flags)]; +#endif + /* Map the global registers */ - mpic->gregs = ioremap(phys_addr + MPIC_GREG_BASE, 0x1000); - mpic->tmregs = mpic->gregs + ((MPIC_TIMER_BASE - MPIC_GREG_BASE) >> 2); + mpic->gregs = ioremap(phys_addr + MPIC_INFO(GREG_BASE), 0x1000); + mpic->tmregs = mpic->gregs + + ((MPIC_INFO(TIMER_BASE) - MPIC_INFO(GREG_BASE)) >> 2); BUG_ON(mpic->gregs == NULL); /* Reset */ if (flags & MPIC_WANTS_RESET) { - mpic_write(mpic->gregs, MPIC_GREG_GLOBAL_CONF_0, - mpic_read(mpic->gregs, MPIC_GREG_GLOBAL_CONF_0) + mpic_write(mpic->gregs, MPIC_INFO(GREG_GLOBAL_CONF_0), + mpic_read(mpic->gregs, MPIC_INFO(GREG_GLOBAL_CONF_0)) | MPIC_GREG_GCONF_RESET); - while( mpic_read(mpic->gregs, MPIC_GREG_GLOBAL_CONF_0) + while( mpic_read(mpic->gregs, MPIC_INFO(GREG_GLOBAL_CONF_0)) & MPIC_GREG_GCONF_RESET) mb(); } @@ -817,7 +917,7 @@ struct mpic * __init mpic_alloc(struct device_node *node, * MPICs, num sources as well. On ISU MPICs, sources are counted * as ISUs are added */ - reg = mpic_read(mpic->gregs, MPIC_GREG_FEATURE_0); + reg = mpic_read(mpic->gregs, MPIC_INFO(GREG_FEATURE_0)); mpic->num_cpus = ((reg & MPIC_GREG_FEATURE_LAST_CPU_MASK) >> MPIC_GREG_FEATURE_LAST_CPU_SHIFT) + 1; if (isu_size == 0) @@ -826,16 +926,16 @@ struct mpic * __init mpic_alloc(struct device_node *node, /* Map the per-CPU registers */ for (i = 0; i < mpic->num_cpus; i++) { - mpic->cpuregs[i] = ioremap(phys_addr + MPIC_CPU_BASE + - i * MPIC_CPU_STRIDE, 0x1000); + mpic->cpuregs[i] = ioremap(phys_addr + MPIC_INFO(CPU_BASE) + + i * MPIC_INFO(CPU_STRIDE), 0x1000); BUG_ON(mpic->cpuregs[i] == NULL); } /* Initialize main ISU if none provided */ if (mpic->isu_size == 0) { mpic->isu_size = mpic->num_sources; - mpic->isus[0] = ioremap(phys_addr + MPIC_IRQ_BASE, - MPIC_IRQ_STRIDE * mpic->isu_size); + mpic->isus[0] = ioremap(phys_addr + MPIC_INFO(IRQ_BASE), + MPIC_INFO(IRQ_STRIDE) * mpic->isu_size); BUG_ON(mpic->isus[0] == NULL); } mpic->isu_shift = 1 + __ilog2(mpic->isu_size - 1); @@ -879,7 +979,8 @@ void __init mpic_assign_isu(struct mpic *mpic, unsigned int isu_num, BUG_ON(isu_num >= MPIC_MAX_ISU); - mpic->isus[isu_num] = ioremap(phys_addr, MPIC_IRQ_STRIDE * mpic->isu_size); + mpic->isus[isu_num] = ioremap(phys_addr, + MPIC_INFO(IRQ_STRIDE) * mpic->isu_size); if ((isu_first + mpic->isu_size) > mpic->num_sources) mpic->num_sources = isu_first + mpic->isu_size; } @@ -904,14 +1005,16 @@ void __init mpic_init(struct mpic *mpic) printk(KERN_INFO "mpic: Initializing for %d sources\n", mpic->num_sources); /* Set current processor priority to max */ - mpic_cpu_write(MPIC_CPU_CURRENT_TASK_PRI, 0xf); + mpic_cpu_write(MPIC_INFO(CPU_CURRENT_TASK_PRI), 0xf); /* Initialize timers: just disable them all */ for (i = 0; i < 4; i++) { mpic_write(mpic->tmregs, - i * MPIC_TIMER_STRIDE + MPIC_TIMER_DESTINATION, 0); + i * MPIC_INFO(TIMER_STRIDE) + + MPIC_INFO(TIMER_DESTINATION), 0); mpic_write(mpic->tmregs, - i * MPIC_TIMER_STRIDE + MPIC_TIMER_VECTOR_PRI, + i * MPIC_INFO(TIMER_STRIDE) + + MPIC_INFO(TIMER_VECTOR_PRI), MPIC_VECPRI_MASK | (MPIC_VEC_TIMER_0 + i)); } @@ -940,21 +1043,22 @@ void __init mpic_init(struct mpic *mpic) (8 << MPIC_VECPRI_PRIORITY_SHIFT); /* init hw */ - mpic_irq_write(i, MPIC_IRQ_VECTOR_PRI, vecpri); - mpic_irq_write(i, MPIC_IRQ_DESTINATION, + mpic_irq_write(i, MPIC_INFO(IRQ_VECTOR_PRI), vecpri); + mpic_irq_write(i, MPIC_INFO(IRQ_DESTINATION), 1 << hard_smp_processor_id()); } /* Init spurrious vector */ - mpic_write(mpic->gregs, MPIC_GREG_SPURIOUS, MPIC_VEC_SPURRIOUS); + mpic_write(mpic->gregs, MPIC_INFO(GREG_SPURIOUS), MPIC_VEC_SPURRIOUS); - /* Disable 8259 passthrough */ - mpic_write(mpic->gregs, MPIC_GREG_GLOBAL_CONF_0, - mpic_read(mpic->gregs, MPIC_GREG_GLOBAL_CONF_0) - | MPIC_GREG_GCONF_8259_PTHROU_DIS); + /* Disable 8259 passthrough, if supported */ + if (!(mpic->flags & MPIC_NO_PTHROU_DIS)) + mpic_write(mpic->gregs, MPIC_INFO(GREG_GLOBAL_CONF_0), + mpic_read(mpic->gregs, MPIC_INFO(GREG_GLOBAL_CONF_0)) + | MPIC_GREG_GCONF_8259_PTHROU_DIS); /* Set current processor priority to 0 */ - mpic_cpu_write(MPIC_CPU_CURRENT_TASK_PRI, 0); + mpic_cpu_write(MPIC_INFO(CPU_CURRENT_TASK_PRI), 0); } void __init mpic_set_clk_ratio(struct mpic *mpic, u32 clock_ratio) @@ -997,9 +1101,9 @@ void mpic_irq_set_priority(unsigned int irq, unsigned int pri) mpic_ipi_write(src - MPIC_VEC_IPI_0, reg | (pri << MPIC_VECPRI_PRIORITY_SHIFT)); } else { - reg = mpic_irq_read(src, MPIC_IRQ_VECTOR_PRI) + reg = mpic_irq_read(src, MPIC_INFO(IRQ_VECTOR_PRI)) & ~MPIC_VECPRI_PRIORITY_MASK; - mpic_irq_write(src, MPIC_IRQ_VECTOR_PRI, + mpic_irq_write(src, MPIC_INFO(IRQ_VECTOR_PRI), reg | (pri << MPIC_VECPRI_PRIORITY_SHIFT)); } spin_unlock_irqrestore(&mpic_lock, flags); @@ -1017,7 +1121,7 @@ unsigned int mpic_irq_get_priority(unsigned int irq) if (is_ipi) reg = mpic_ipi_read(src = MPIC_VEC_IPI_0); else - reg = mpic_irq_read(src, MPIC_IRQ_VECTOR_PRI); + reg = mpic_irq_read(src, MPIC_INFO(IRQ_VECTOR_PRI)); spin_unlock_irqrestore(&mpic_lock, flags); return (reg & MPIC_VECPRI_PRIORITY_MASK) >> MPIC_VECPRI_PRIORITY_SHIFT; } @@ -1043,12 +1147,12 @@ void mpic_setup_this_cpu(void) */ if (distribute_irqs) { for (i = 0; i < mpic->num_sources ; i++) - mpic_irq_write(i, MPIC_IRQ_DESTINATION, - mpic_irq_read(i, MPIC_IRQ_DESTINATION) | msk); + mpic_irq_write(i, MPIC_INFO(IRQ_DESTINATION), + mpic_irq_read(i, MPIC_INFO(IRQ_DESTINATION)) | msk); } /* Set current processor priority to 0 */ - mpic_cpu_write(MPIC_CPU_CURRENT_TASK_PRI, 0); + mpic_cpu_write(MPIC_INFO(CPU_CURRENT_TASK_PRI), 0); spin_unlock_irqrestore(&mpic_lock, flags); #endif /* CONFIG_SMP */ @@ -1058,7 +1162,7 @@ int mpic_cpu_get_priority(void) { struct mpic *mpic = mpic_primary; - return mpic_cpu_read(MPIC_CPU_CURRENT_TASK_PRI); + return mpic_cpu_read(MPIC_INFO(CPU_CURRENT_TASK_PRI)); } void mpic_cpu_set_priority(int prio) @@ -1066,7 +1170,7 @@ void mpic_cpu_set_priority(int prio) struct mpic *mpic = mpic_primary; prio &= MPIC_CPU_TASKPRI_MASK; - mpic_cpu_write(MPIC_CPU_CURRENT_TASK_PRI, prio); + mpic_cpu_write(MPIC_INFO(CPU_CURRENT_TASK_PRI), prio); } /* @@ -1088,11 +1192,11 @@ void mpic_teardown_this_cpu(int secondary) /* let the mpic know we don't want intrs. */ for (i = 0; i < mpic->num_sources ; i++) - mpic_irq_write(i, MPIC_IRQ_DESTINATION, - mpic_irq_read(i, MPIC_IRQ_DESTINATION) & ~msk); + mpic_irq_write(i, MPIC_INFO(IRQ_DESTINATION), + mpic_irq_read(i, MPIC_INFO(IRQ_DESTINATION)) & ~msk); /* Set current processor priority to max */ - mpic_cpu_write(MPIC_CPU_CURRENT_TASK_PRI, 0xf); + mpic_cpu_write(MPIC_INFO(CPU_CURRENT_TASK_PRI), 0xf); spin_unlock_irqrestore(&mpic_lock, flags); } @@ -1108,7 +1212,8 @@ void mpic_send_ipi(unsigned int ipi_no, unsigned int cpu_mask) DBG("%s: send_ipi(ipi_no: %d)\n", mpic->name, ipi_no); #endif - mpic_cpu_write(MPIC_CPU_IPI_DISPATCH_0 + ipi_no * 0x10, + mpic_cpu_write(MPIC_INFO(CPU_IPI_DISPATCH_0) + + ipi_no * MPIC_INFO(CPU_IPI_DISPATCH_STRIDE), mpic_physmask(cpu_mask & cpus_addr(cpu_online_map)[0])); } @@ -1116,7 +1221,7 @@ unsigned int mpic_get_one_irq(struct mpic *mpic, struct pt_regs *regs) { u32 src; - src = mpic_cpu_read(MPIC_CPU_INTACK) & MPIC_VECPRI_VECTOR_MASK; + src = mpic_cpu_read(MPIC_INFO(CPU_INTACK)) & MPIC_INFO(VECPRI_VECTOR_MASK); #ifdef DEBUG_LOW DBG("%s: get_one_irq(): %d\n", mpic->name, src); #endif diff --git a/include/asm-powerpc/mpic.h b/include/asm-powerpc/mpic.h index eb241c99c457..a9f9604b9eff 100644 --- a/include/asm-powerpc/mpic.h +++ b/include/asm-powerpc/mpic.h @@ -41,6 +41,7 @@ #define MPIC_GREG_IPI_VECTOR_PRI_1 0x000b0 #define MPIC_GREG_IPI_VECTOR_PRI_2 0x000c0 #define MPIC_GREG_IPI_VECTOR_PRI_3 0x000d0 +#define MPIC_GREG_IPI_STRIDE 0x10 #define MPIC_GREG_SPURIOUS 0x000e0 #define MPIC_GREG_TIMER_FREQ 0x000f0 @@ -68,6 +69,7 @@ #define MPIC_CPU_IPI_DISPATCH_1 0x00050 #define MPIC_CPU_IPI_DISPATCH_2 0x00060 #define MPIC_CPU_IPI_DISPATCH_3 0x00070 +#define MPIC_CPU_IPI_DISPATCH_STRIDE 0x00010 #define MPIC_CPU_CURRENT_TASK_PRI 0x00080 #define MPIC_CPU_TASKPRI_MASK 0x0000000f #define MPIC_CPU_WHOAMI 0x00090 @@ -114,6 +116,103 @@ #define MPIC_VEC_TIMER_1 248 #define MPIC_VEC_TIMER_0 247 +/* + * Tsi108 implementation of MPIC has many differences from the original one + */ + +/* + * Global registers + */ + +#define TSI108_GREG_BASE 0x00000 +#define TSI108_GREG_FEATURE_0 0x00000 +#define TSI108_GREG_GLOBAL_CONF_0 0x00004 +#define TSI108_GREG_VENDOR_ID 0x0000c +#define TSI108_GREG_IPI_VECTOR_PRI_0 0x00204 /* Doorbell 0 */ +#define TSI108_GREG_IPI_STRIDE 0x0c +#define TSI108_GREG_SPURIOUS 0x00010 +#define TSI108_GREG_TIMER_FREQ 0x00014 + +/* + * Timer registers + */ +#define TSI108_TIMER_BASE 0x0030 +#define TSI108_TIMER_STRIDE 0x10 +#define TSI108_TIMER_CURRENT_CNT 0x00000 +#define TSI108_TIMER_BASE_CNT 0x00004 +#define TSI108_TIMER_VECTOR_PRI 0x00008 +#define TSI108_TIMER_DESTINATION 0x0000c + +/* + * Per-Processor registers + */ +#define TSI108_CPU_BASE 0x00300 +#define TSI108_CPU_STRIDE 0x00040 +#define TSI108_CPU_IPI_DISPATCH_0 0x00200 +#define TSI108_CPU_IPI_DISPATCH_STRIDE 0x00000 +#define TSI108_CPU_CURRENT_TASK_PRI 0x00000 +#define TSI108_CPU_WHOAMI 0xffffffff +#define TSI108_CPU_INTACK 0x00004 +#define TSI108_CPU_EOI 0x00008 + +/* + * Per-source registers + */ +#define TSI108_IRQ_BASE 0x00100 +#define TSI108_IRQ_STRIDE 0x00008 +#define TSI108_IRQ_VECTOR_PRI 0x00000 +#define TSI108_VECPRI_VECTOR_MASK 0x000000ff +#define TSI108_VECPRI_POLARITY_POSITIVE 0x01000000 +#define TSI108_VECPRI_POLARITY_NEGATIVE 0x00000000 +#define TSI108_VECPRI_SENSE_LEVEL 0x02000000 +#define TSI108_VECPRI_SENSE_EDGE 0x00000000 +#define TSI108_VECPRI_POLARITY_MASK 0x01000000 +#define TSI108_VECPRI_SENSE_MASK 0x02000000 +#define TSI108_IRQ_DESTINATION 0x00004 + +/* weird mpic register indices and mask bits in the HW info array */ +enum { + MPIC_IDX_GREG_BASE = 0, + MPIC_IDX_GREG_FEATURE_0, + MPIC_IDX_GREG_GLOBAL_CONF_0, + MPIC_IDX_GREG_VENDOR_ID, + MPIC_IDX_GREG_IPI_VECTOR_PRI_0, + MPIC_IDX_GREG_IPI_STRIDE, + MPIC_IDX_GREG_SPURIOUS, + MPIC_IDX_GREG_TIMER_FREQ, + + MPIC_IDX_TIMER_BASE, + MPIC_IDX_TIMER_STRIDE, + MPIC_IDX_TIMER_CURRENT_CNT, + MPIC_IDX_TIMER_BASE_CNT, + MPIC_IDX_TIMER_VECTOR_PRI, + MPIC_IDX_TIMER_DESTINATION, + + MPIC_IDX_CPU_BASE, + MPIC_IDX_CPU_STRIDE, + MPIC_IDX_CPU_IPI_DISPATCH_0, + MPIC_IDX_CPU_IPI_DISPATCH_STRIDE, + MPIC_IDX_CPU_CURRENT_TASK_PRI, + MPIC_IDX_CPU_WHOAMI, + MPIC_IDX_CPU_INTACK, + MPIC_IDX_CPU_EOI, + + MPIC_IDX_IRQ_BASE, + MPIC_IDX_IRQ_STRIDE, + MPIC_IDX_IRQ_VECTOR_PRI, + + MPIC_IDX_VECPRI_VECTOR_MASK, + MPIC_IDX_VECPRI_POLARITY_POSITIVE, + MPIC_IDX_VECPRI_POLARITY_NEGATIVE, + MPIC_IDX_VECPRI_SENSE_LEVEL, + MPIC_IDX_VECPRI_SENSE_EDGE, + MPIC_IDX_VECPRI_POLARITY_MASK, + MPIC_IDX_VECPRI_SENSE_MASK, + MPIC_IDX_IRQ_DESTINATION, + MPIC_IDX_END +}; + + #ifdef CONFIG_MPIC_BROKEN_U3 /* Fixup table entry */ struct mpic_irq_fixup @@ -171,15 +270,29 @@ struct mpic volatile u32 __iomem *cpuregs[MPIC_MAX_CPUS]; volatile u32 __iomem *isus[MPIC_MAX_ISU]; +#ifdef CONFIG_MPIC_WEIRD + /* Pointer to HW info array */ + u32 *hw_set; +#endif + /* link */ struct mpic *next; }; +/* + * MPIC flags (passed to mpic_alloc) + * + * The top 4 bits contain an MPIC bhw id that is used to index the + * register offsets and some masks when CONFIG_MPIC_WEIRD is set. + * Note setting any ID (leaving those bits to 0) means standard MPIC + */ + /* This is the primary controller, only that one has IPIs and * has afinity control. A non-primary MPIC always uses CPU0 * registers only */ #define MPIC_PRIMARY 0x00000001 + /* Set this for a big-endian MPIC */ #define MPIC_BIG_ENDIAN 0x00000002 /* Broken U3 MPIC */ @@ -188,6 +301,18 @@ struct mpic #define MPIC_BROKEN_IPI 0x00000008 /* MPIC wants a reset */ #define MPIC_WANTS_RESET 0x00000010 +/* Spurious vector requires EOI */ +#define MPIC_SPV_EOI 0x00000020 +/* No passthrough disable */ +#define MPIC_NO_PTHROU_DIS 0x00000040 + +/* MPIC HW modification ID */ +#define MPIC_REGSET_MASK 0xf0000000 +#define MPIC_REGSET(val) (((val) & 0xf ) << 28) +#define MPIC_GET_REGSET(flags) (((flags) >> 28) & 0xf) + +#define MPIC_REGSET_STANDARD MPIC_REGSET(0) /* Original MPIC */ +#define MPIC_REGSET_TSI108 MPIC_REGSET(1) /* Tsi108/109 PIC */ /* Allocate the controller structure and setup the linux irq descs * for the range if interrupts passed in. No HW initialization is From 006b64de607f895de2ba1e21d3179cddf059128f Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Fri, 25 Aug 2006 14:46:23 +1000 Subject: [PATCH 410/488] [POWERPC] Make OF irq map code detect more error cases Device-tree bugs on js20 with some versions of SLOF were causing the interrupt for IDE to not be parsed correctly and fail to boot. This patch adds a bit more sanity checking to the parser to detect some of those errors and fail instead of returning bogus information. The powerpc PCI code can then trigger a fallback that works on those machines. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/pci_64.c | 11 +++++++++-- arch/powerpc/kernel/prom_parse.c | 17 +++++++++++++---- include/asm-powerpc/prom.h | 4 +++- 3 files changed, 25 insertions(+), 7 deletions(-) diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c index 2fce7738e9e2..138134c8c17d 100644 --- a/arch/powerpc/kernel/pci_64.c +++ b/arch/powerpc/kernel/pci_64.c @@ -1289,6 +1289,9 @@ int pci_read_irq_line(struct pci_dev *pci_dev) DBG("Try to map irq for %s...\n", pci_name(pci_dev)); +#ifdef DEBUG + memset(&oirq, 0xff, sizeof(oirq)); +#endif /* Try to get a mapping from the device-tree */ if (of_irq_map_pci(pci_dev, &oirq)) { u8 line, pin; @@ -1314,8 +1317,9 @@ int pci_read_irq_line(struct pci_dev *pci_dev) if (virq != NO_IRQ) set_irq_type(virq, IRQ_TYPE_LEVEL_LOW); } else { - DBG(" -> got one, spec %d cells (0x%08x...) on %s\n", - oirq.size, oirq.specifier[0], oirq.controller->full_name); + DBG(" -> got one, spec %d cells (0x%08x 0x%08x...) on %s\n", + oirq.size, oirq.specifier[0], oirq.specifier[1], + oirq.controller->full_name); virq = irq_create_of_mapping(oirq.controller, oirq.specifier, oirq.size); @@ -1324,6 +1328,9 @@ int pci_read_irq_line(struct pci_dev *pci_dev) DBG(" -> failed to map !\n"); return -1; } + + DBG(" -> mapped to linux irq %d\n", virq); + pci_dev->irq = virq; pci_write_config_byte(pci_dev, PCI_INTERRUPT_LINE, virq); diff --git a/arch/powerpc/kernel/prom_parse.c b/arch/powerpc/kernel/prom_parse.c index 11052c212ad5..a10825a5dfe6 100644 --- a/arch/powerpc/kernel/prom_parse.c +++ b/arch/powerpc/kernel/prom_parse.c @@ -639,14 +639,17 @@ void of_irq_map_init(unsigned int flags) } -int of_irq_map_raw(struct device_node *parent, u32 *intspec, u32 *addr, - struct of_irq *out_irq) +int of_irq_map_raw(struct device_node *parent, u32 *intspec, u32 ointsize, + u32 *addr, struct of_irq *out_irq) { struct device_node *ipar, *tnode, *old = NULL, *newpar = NULL; u32 *tmp, *imap, *imask; u32 intsize = 1, addrsize, newintsize = 0, newaddrsize = 0; int imaplen, match, i; + DBG("of_irq_map_raw: par=%s,intspec=[0x%08x 0x%08x...],ointsize=%d\n", + parent->full_name, intspec[0], intspec[1], ointsize); + ipar = of_node_get(parent); /* First get the #interrupt-cells property of the current cursor @@ -670,6 +673,9 @@ int of_irq_map_raw(struct device_node *parent, u32 *intspec, u32 *addr, DBG("of_irq_map_raw: ipar=%s, size=%d\n", ipar->full_name, intsize); + if (ointsize != intsize) + return -EINVAL; + /* Look for this #address-cells. We have to implement the old linux * trick of looking for the parent here as some device-trees rely on it */ @@ -875,12 +881,15 @@ int of_irq_map_one(struct device_node *device, int index, struct of_irq *out_irq } intsize = *tmp; + DBG(" intsize=%d intlen=%d\n", intsize, intlen); + /* Check index */ if ((index + 1) * intsize > intlen) return -EINVAL; /* Get new specifier and map it */ - res = of_irq_map_raw(p, intspec + index * intsize, addr, out_irq); + res = of_irq_map_raw(p, intspec + index * intsize, intsize, + addr, out_irq); of_node_put(p); return res; } @@ -965,7 +974,7 @@ int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq) laddr[0] = (pdev->bus->number << 16) | (pdev->devfn << 8); laddr[1] = laddr[2] = 0; - return of_irq_map_raw(ppnode, &lspec, laddr, out_irq); + return of_irq_map_raw(ppnode, &lspec, 1, laddr, out_irq); } EXPORT_SYMBOL_GPL(of_irq_map_pci); #endif /* CONFIG_PCI */ diff --git a/include/asm-powerpc/prom.h b/include/asm-powerpc/prom.h index b095a285c84b..d0fa1b9aed35 100644 --- a/include/asm-powerpc/prom.h +++ b/include/asm-powerpc/prom.h @@ -276,6 +276,7 @@ extern void of_irq_map_init(unsigned int flags); * of_irq_map_raw - Low level interrupt tree parsing * @parent: the device interrupt parent * @intspec: interrupt specifier ("interrupts" property of the device) + * @ointsize: size of the passed in interrupt specifier * @addr: address specifier (start of "reg" property of the device) * @out_irq: structure of_irq filled by this function * @@ -288,7 +289,8 @@ extern void of_irq_map_init(unsigned int flags); * */ -extern int of_irq_map_raw(struct device_node *parent, u32 *intspec, u32 *addr, +extern int of_irq_map_raw(struct device_node *parent, u32 *intspec, + u32 ointsize, u32 *addr, struct of_irq *out_irq); From 11e9ed43ca8a741c2858c33d12120cf8817d3bff Mon Sep 17 00:00:00 2001 From: Will Schmidt Date: Fri, 25 Aug 2006 15:46:59 -0500 Subject: [PATCH 411/488] [POWERPC] Fix up ibm_architecture_vec definition This problem was noticed by one of the Phyp firmware folks. Our ibm,client-architecture-support call was failing. This corrects the vector length parameters being passed in. Signed-off-by: Will Schmidt Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/prom_init.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c index 462bced40c12..4394e545f9f7 100644 --- a/arch/powerpc/kernel/prom_init.c +++ b/arch/powerpc/kernel/prom_init.c @@ -646,13 +646,13 @@ static unsigned char ibm_architecture_vec[] = { 5 - 1, /* 5 option vectors */ /* option vector 1: processor architectures supported */ - 3 - 1, /* length */ + 3 - 2, /* length */ 0, /* don't ignore, don't halt */ OV1_PPC_2_00 | OV1_PPC_2_01 | OV1_PPC_2_02 | OV1_PPC_2_03 | OV1_PPC_2_04 | OV1_PPC_2_05, /* option vector 2: Open Firmware options supported */ - 34 - 1, /* length */ + 34 - 2, /* length */ OV2_REAL_MODE, 0, 0, W(0xffffffff), /* real_base */ @@ -666,16 +666,16 @@ static unsigned char ibm_architecture_vec[] = { 48, /* max log_2(hash table size) */ /* option vector 3: processor options supported */ - 3 - 1, /* length */ + 3 - 2, /* length */ 0, /* don't ignore, don't halt */ OV3_FP | OV3_VMX, /* option vector 4: IBM PAPR implementation */ - 2 - 1, /* length */ + 2 - 2, /* length */ 0, /* don't halt */ /* option vector 5: PAPR/OF options */ - 3 - 1, /* length */ + 3 - 2, /* length */ 0, /* don't ignore, don't halt */ OV5_LPAR | OV5_SPLPAR | OV5_LARGE_PAGES, }; From fea23bfefb4e98efd3c36f00ccc0b60281dc99da Mon Sep 17 00:00:00 2001 From: Paul Mackerras Date: Wed, 30 Aug 2006 14:45:35 +1000 Subject: [PATCH 412/488] [POWERPC] Restore copyright notice in arch/powerpc/kernel/fpu.S This code got moved from head.S but the copyright notice on head.S didn't get transferred with it. Noticed by Cort Dougan . Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/fpu.S | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/powerpc/kernel/fpu.S b/arch/powerpc/kernel/fpu.S index 7e2c9fe44ac1..821e152e093c 100644 --- a/arch/powerpc/kernel/fpu.S +++ b/arch/powerpc/kernel/fpu.S @@ -2,6 +2,11 @@ * FPU support code, moved here from head.S so that it can be used * by chips which use other head-whatever.S files. * + * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org) + * Copyright (C) 1996 Cort Dougan + * Copyright (C) 1996 Paul Mackerras. + * Copyright (C) 1997 Dan Malek (dmalek@jlc.net). + * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version From e0d872d536bb93335d5905b09fe374a163486d43 Mon Sep 17 00:00:00 2001 From: Paul Mackerras Date: Wed, 30 Aug 2006 15:55:32 +1000 Subject: [PATCH 413/488] [POWERPC] Fix problem with time not advancing on 32-bit platforms This fixes a problem introduced in 5db9fa9593e2ff69f2b95f9d59229dc4faaa564d. The last_jiffy per-cpu variable is only 32 bits on 32-bit machines, but it was being compared with a 64-bit quantity (tb_next_jiffy), which resulted in time not advancing. This fixes it by changing last_jiffy to be 64 bits on all platforms. With this, we no longer need tb_last_stamp as a 32-bit version of tb_last_jiffy, so this gets rid of tb_last_stamp and we just use tb_last_jiffy instead. This also fixes a bug when the boot cpu is not online, because using tb_last_stamp could have caused the wrong timebase origin value to be used when calculating the time of day. Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/time.c | 25 ++++++++----------------- include/asm-powerpc/time.h | 4 ---- 2 files changed, 8 insertions(+), 21 deletions(-) diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c index 18e59e43d2b3..a124499e65d9 100644 --- a/arch/powerpc/kernel/time.c +++ b/arch/powerpc/kernel/time.c @@ -125,15 +125,8 @@ static long timezone_offset; unsigned long ppc_proc_freq; unsigned long ppc_tb_freq; -u64 tb_last_jiffy __cacheline_aligned_in_smp; -unsigned long tb_last_stamp; - -/* - * Note that on ppc32 this only stores the bottom 32 bits of - * the timebase value, but that's enough to tell when a jiffy - * has passed. - */ -DEFINE_PER_CPU(unsigned long, last_jiffy); +static u64 tb_last_jiffy __cacheline_aligned_in_smp; +static DEFINE_PER_CPU(u64, last_jiffy); #ifdef CONFIG_VIRT_CPU_ACCOUNTING /* @@ -458,7 +451,7 @@ void do_gettimeofday(struct timeval *tv) do { seq = read_seqbegin_irqsave(&xtime_lock, flags); sec = xtime.tv_sec; - nsec = xtime.tv_nsec + tb_ticks_since(tb_last_stamp); + nsec = xtime.tv_nsec + tb_ticks_since(tb_last_jiffy); } while (read_seqretry_irqrestore(&xtime_lock, seq, flags)); usec = nsec / 1000; while (usec >= 1000000) { @@ -700,7 +693,6 @@ void timer_interrupt(struct pt_regs * regs) tb_next_jiffy = tb_last_jiffy + tb_ticks_per_jiffy; if (per_cpu(last_jiffy, cpu) >= tb_next_jiffy) { tb_last_jiffy = tb_next_jiffy; - tb_last_stamp = per_cpu(last_jiffy, cpu); do_timer(regs); timer_recalc_offset(tb_last_jiffy); timer_check_rtc(); @@ -749,7 +741,7 @@ void __init smp_space_timers(unsigned int max_cpus) int i; unsigned long half = tb_ticks_per_jiffy / 2; unsigned long offset = tb_ticks_per_jiffy / max_cpus; - unsigned long previous_tb = per_cpu(last_jiffy, boot_cpuid); + u64 previous_tb = per_cpu(last_jiffy, boot_cpuid); /* make sure tb > per_cpu(last_jiffy, cpu) for all cpus always */ previous_tb -= tb_ticks_per_jiffy; @@ -830,7 +822,7 @@ int do_settimeofday(struct timespec *tv) * and therefore the (jiffies - wall_jiffies) computation * has been removed. */ - tb_delta = tb_ticks_since(tb_last_stamp); + tb_delta = tb_ticks_since(tb_last_jiffy); tb_delta = mulhdu(tb_delta, do_gtod.varp->tb_to_xs); /* in xsec */ new_nsec -= SCALE_XSEC(tb_delta, 1000000000); @@ -950,8 +942,7 @@ void __init time_init(void) if (__USE_RTC()) { /* 601 processor: dec counts down by 128 every 128ns */ ppc_tb_freq = 1000000000; - tb_last_stamp = get_rtcl(); - tb_last_jiffy = tb_last_stamp; + tb_last_jiffy = get_rtcl(); } else { /* Normal PowerPC with timebase register */ ppc_md.calibrate_decr(); @@ -959,7 +950,7 @@ void __init time_init(void) ppc_tb_freq / 1000000, ppc_tb_freq % 1000000); printk(KERN_DEBUG "time_init: processor frequency = %lu.%.6lu MHz\n", ppc_proc_freq / 1000000, ppc_proc_freq % 1000000); - tb_last_stamp = tb_last_jiffy = get_tb(); + tb_last_jiffy = get_tb(); } tb_ticks_per_jiffy = ppc_tb_freq / HZ; @@ -1036,7 +1027,7 @@ void __init time_init(void) do_gtod.varp = &do_gtod.vars[0]; do_gtod.var_idx = 0; do_gtod.varp->tb_orig_stamp = tb_last_jiffy; - __get_cpu_var(last_jiffy) = tb_last_stamp; + __get_cpu_var(last_jiffy) = tb_last_jiffy; do_gtod.varp->stamp_xsec = (u64) xtime.tv_sec * XSEC_PER_SEC; do_gtod.tb_ticks_per_sec = tb_ticks_per_sec; do_gtod.varp->tb_to_xs = tb_to_xs; diff --git a/include/asm-powerpc/time.h b/include/asm-powerpc/time.h index dcde4410348d..5785ac4737b5 100644 --- a/include/asm-powerpc/time.h +++ b/include/asm-powerpc/time.h @@ -30,10 +30,6 @@ extern unsigned long tb_ticks_per_usec; extern unsigned long tb_ticks_per_sec; extern u64 tb_to_xs; extern unsigned tb_to_us; -extern unsigned long tb_last_stamp; -extern u64 tb_last_jiffy; - -DECLARE_PER_CPU(unsigned long, last_jiffy); struct rtc_time; extern void to_tm(int tim, struct rtc_time * tm); From 467c37801c453849a2fe243c3226476ee3985868 Mon Sep 17 00:00:00 2001 From: Paul Mackerras Date: Wed, 30 Aug 2006 16:10:47 +1000 Subject: [PATCH 414/488] [POWERPC] Fix irq enable/disable in smp_generic_take_timebase Eran Ben-Avi pointed out that the arch/ppc version of smp_generic_take_timebase disables interrupts on entry but exits without restoring them. However, both it and the arch/powerpc version have another problem, which is that they use local_irq_disable/enable rather than local_irq_save/restore, and they are called with interrupts disabled. This fixes both problems; it changes a return to a break in the arch/ppc version, and changes both versions to use local_irq_save/restore. Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/smp-tbsync.c | 5 +++-- arch/ppc/kernel/smp-tbsync.c | 7 ++++--- 2 files changed, 7 insertions(+), 5 deletions(-) diff --git a/arch/powerpc/kernel/smp-tbsync.c b/arch/powerpc/kernel/smp-tbsync.c index f19e2e0e61e7..de59c6c31a5b 100644 --- a/arch/powerpc/kernel/smp-tbsync.c +++ b/arch/powerpc/kernel/smp-tbsync.c @@ -45,8 +45,9 @@ void __devinit smp_generic_take_timebase(void) { int cmd; u64 tb; + unsigned long flags; - local_irq_disable(); + local_irq_save(flags); while (!running) barrier(); rmb(); @@ -70,7 +71,7 @@ void __devinit smp_generic_take_timebase(void) set_tb(tb >> 32, tb & 0xfffffffful); enter_contest(tbsync->mark, -1); } - local_irq_enable(); + local_irq_restore(flags); } static int __devinit start_contest(int cmd, long offset, int num) diff --git a/arch/ppc/kernel/smp-tbsync.c b/arch/ppc/kernel/smp-tbsync.c index 1576758debaf..d0cf3f86931d 100644 --- a/arch/ppc/kernel/smp-tbsync.c +++ b/arch/ppc/kernel/smp-tbsync.c @@ -47,8 +47,9 @@ void __devinit smp_generic_take_timebase( void ) { int cmd, tbl, tbu; + unsigned long flags; - local_irq_disable(); + local_irq_save(flags); while( !running ) ; rmb(); @@ -64,7 +65,7 @@ smp_generic_take_timebase( void ) tbu = tbsync->tbu; tbsync->ack = 0; if( cmd == kExit ) - return; + break; if( cmd == kSetAndTest ) { while( tbsync->handshake ) @@ -77,7 +78,7 @@ smp_generic_take_timebase( void ) } enter_contest( tbsync->mark, -1 ); } - local_irq_enable(); + local_irq_restore(flags); } static int __devinit From d21b55d30b46c0b43821a2980e4998965fa37e33 Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Mon, 28 Aug 2006 19:49:03 +0400 Subject: [PATCH 415/488] [SERIAL] Make uart_match_port() work with all memory mapped UARTs uart_match_port() always fails with UPIO_MEM32, UPIO_AU, and UPIO_TSI cases. Since they match to the memory mapped UARTs, they should be handled just like UPIO_MEM case. Signed-off-by: Sergei Shtylyov Signed-off-by: Russell King --- drivers/serial/serial_core.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c index 80ef7d482756..372e47f7d596 100644 --- a/drivers/serial/serial_core.c +++ b/drivers/serial/serial_core.c @@ -2377,6 +2377,9 @@ int uart_match_port(struct uart_port *port1, struct uart_port *port2) return (port1->iobase == port2->iobase) && (port1->hub6 == port2->hub6); case UPIO_MEM: + case UPIO_MEM32: + case UPIO_AU: + case UPIO_TSI: return (port1->mapbase == port2->mapbase); } return 0; From e9422e091531c5851da4ffb8ee6dcbc36dc5b7a9 Mon Sep 17 00:00:00 2001 From: Helge Deller Date: Tue, 29 Aug 2006 21:57:29 +0200 Subject: [PATCH 416/488] [SERIAL] 8250: constify some serial structs - some const- ification and usage of ARRAY_SIZE() in serial drivers Signed-off-by: Helge Deller Signed-off-by: Russell King --- drivers/serial/8250_pci.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) diff --git a/drivers/serial/8250_pci.c b/drivers/serial/8250_pci.c index cd1979daf2b8..851e4839d6d9 100644 --- a/drivers/serial/8250_pci.c +++ b/drivers/serial/8250_pci.c @@ -458,11 +458,11 @@ static int pci_siig_setup(struct serial_private *priv, * growing *huge*, we use this function to collapse some 70 entries * in the PCI table into one, for sanity's and compactness's sake. */ -static unsigned short timedia_single_port[] = { +static const unsigned short timedia_single_port[] = { 0x4025, 0x4027, 0x4028, 0x5025, 0x5027, 0 }; -static unsigned short timedia_dual_port[] = { +static const unsigned short timedia_dual_port[] = { 0x0002, 0x4036, 0x4037, 0x4038, 0x4078, 0x4079, 0x4085, 0x4088, 0x4089, 0x5037, 0x5078, 0x5079, 0x5085, 0x6079, 0x7079, 0x8079, 0x8137, 0x8138, 0x8237, 0x8238, 0x9079, @@ -470,35 +470,34 @@ static unsigned short timedia_dual_port[] = { 0xD079, 0 }; -static unsigned short timedia_quad_port[] = { +static const unsigned short timedia_quad_port[] = { 0x4055, 0x4056, 0x4095, 0x4096, 0x5056, 0x8156, 0x8157, 0x8256, 0x8257, 0x9056, 0x9156, 0x9157, 0x9158, 0x9159, 0x9256, 0x9257, 0xA056, 0xA157, 0xA158, 0xA159, 0xB056, 0xB157, 0 }; -static unsigned short timedia_eight_port[] = { +static const unsigned short timedia_eight_port[] = { 0x4065, 0x4066, 0x5065, 0x5066, 0x8166, 0x9066, 0x9166, 0x9167, 0x9168, 0xA066, 0xA167, 0xA168, 0 }; static const struct timedia_struct { int num; - unsigned short *ids; + const unsigned short *ids; } timedia_data[] = { { 1, timedia_single_port }, { 2, timedia_dual_port }, { 4, timedia_quad_port }, - { 8, timedia_eight_port }, - { 0, NULL } + { 8, timedia_eight_port } }; static int pci_timedia_init(struct pci_dev *dev) { - unsigned short *ids; + const unsigned short *ids; int i, j; - for (i = 0; timedia_data[i].num; i++) { + for (i = 0; i < ARRAY_SIZE(timedia_data); i++) { ids = timedia_data[i].ids; for (j = 0; ids[j]; j++) if (dev->subsystem_device == ids[j]) From e7498656b5e2e9e3806d263fecc90b2707d02093 Mon Sep 17 00:00:00 2001 From: Stephen Rothwell Date: Wed, 30 Aug 2006 17:11:34 +1000 Subject: [PATCH 417/488] [POWERPC] iseries: Define insw et al. so libata/ide will compile These are build fixes that enable (for example) libata and the ide code to actually build on iSeries. The associated hardware will never be supported on legacy iSeries, so the code paths don't actually need to work, but it is useful (especially for a combined kernel) if the code can build. Signed-off-by: Stephen Rothwell Signed-off-by: Paul Mackerras --- include/asm-powerpc/io.h | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/include/asm-powerpc/io.h b/include/asm-powerpc/io.h index a9496f34b048..36c4c34bf565 100644 --- a/include/asm-powerpc/io.h +++ b/include/asm-powerpc/io.h @@ -72,6 +72,9 @@ extern unsigned long pci_io_base; * Neither do the standard versions now, these are just here * for older code. */ +#define insb(port, buf, ns) _insb((u8 __iomem *)((port)+pci_io_base), (buf), (ns)) +#define insw(port, buf, ns) _insw_ns((u8 __iomem *)((port)+pci_io_base), (buf), (ns)) +#define insl(port, buf, nl) _insl_ns((u8 __iomem *)((port)+pci_io_base), (buf), (nl)) #define insw_ns(port, buf, ns) _insw_ns((u16 __iomem *)((port)+pci_io_base), (buf), (ns)) #define insl_ns(port, buf, nl) _insl_ns((u32 __iomem *)((port)+pci_io_base), (buf), (nl)) #else @@ -137,12 +140,12 @@ static inline void __raw_writeq(unsigned long v, volatile void __iomem *addr) #define insw_ns(port, buf, ns) eeh_insw_ns((port), (buf), (ns)) #define insl_ns(port, buf, nl) eeh_insl_ns((port), (buf), (nl)) +#endif + #define outsb(port, buf, ns) _outsb((u8 __iomem *)((port)+pci_io_base), (buf), (ns)) #define outsw(port, buf, ns) _outsw_ns((u16 __iomem *)((port)+pci_io_base), (buf), (ns)) #define outsl(port, buf, nl) _outsl_ns((u32 __iomem *)((port)+pci_io_base), (buf), (nl)) -#endif - #define readb_relaxed(addr) readb(addr) #define readw_relaxed(addr) readw(addr) #define readl_relaxed(addr) readl(addr) From af313e5a4f56b248767d667c3c2436dda767df77 Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Wed, 30 Aug 2006 14:33:30 +0200 Subject: [PATCH 418/488] [S390] broken copy_in_user function. The copy_in_user primitive does not work as advertised. If the source and target area are available copy_in_user copies one byte too much. If one of the memory areas is not available it does not copy as much data as it can, but up to 257 bytes less. Signed-off-by: Martin Schwidefsky --- arch/s390/lib/uaccess.S | 33 +++++++++++++++++---------------- arch/s390/lib/uaccess64.S | 37 +++++++++++++++++++------------------ 2 files changed, 36 insertions(+), 34 deletions(-) diff --git a/arch/s390/lib/uaccess.S b/arch/s390/lib/uaccess.S index 5d59e2625048..837275284d9f 100644 --- a/arch/s390/lib/uaccess.S +++ b/arch/s390/lib/uaccess.S @@ -88,30 +88,31 @@ __copy_to_user_asm: .globl __copy_in_user_asm # %r2 = from, %r3 = n, %r4 = to __copy_in_user_asm: + ahi %r3,-1 + jo 6f sacf 256 - bras 1,1f - mvc 0(1,%r4),0(%r2) -0: mvc 0(256,%r4),0(%r2) - la %r2,256(%r2) - la %r4,256(%r4) -1: ahi %r3,-256 - jnm 0b -2: ex %r3,0(%r1) - sacf 0 - slr %r2,%r2 - br 14 -3: mvc 0(1,%r4),0(%r2) + bras %r1,4f +0: ahi %r3,257 +1: mvc 0(1,%r4),0(%r2) la %r2,1(%r2) la %r4,1(%r4) ahi %r3,-1 + jnz 1b +2: lr %r2,%r3 + br %r14 +3: mvc 0(256,%r4),0(%r2) + la %r2,256(%r2) + la %r4,256(%r4) +4: ahi %r3,-256 jnm 3b -4: lr %r2,%r3 +5: ex %r3,4(%r1) sacf 0 +6: slr %r2,%r2 br %r14 .section __ex_table,"a" - .long 0b,3b - .long 2b,3b - .long 3b,4b + .long 1b,2b + .long 3b,0b + .long 5b,0b .previous .align 4 diff --git a/arch/s390/lib/uaccess64.S b/arch/s390/lib/uaccess64.S index 19b41a33c230..1f755be22f92 100644 --- a/arch/s390/lib/uaccess64.S +++ b/arch/s390/lib/uaccess64.S @@ -88,30 +88,31 @@ __copy_to_user_asm: .globl __copy_in_user_asm # %r2 = from, %r3 = n, %r4 = to __copy_in_user_asm: + aghi %r3,-1 + jo 6f sacf 256 - bras 1,1f - mvc 0(1,%r4),0(%r2) -0: mvc 0(256,%r4),0(%r2) - la %r2,256(%r2) - la %r4,256(%r4) -1: aghi %r3,-256 - jnm 0b -2: ex %r3,0(%r1) - sacf 0 - slgr %r2,%r2 - br 14 -3: mvc 0(1,%r4),0(%r2) + bras %r1,4f +0: aghi %r3,257 +1: mvc 0(1,%r4),0(%r2) la %r2,1(%r2) la %r4,1(%r4) aghi %r3,-1 - jnm 3b -4: lgr %r2,%r3 - sacf 0 + jnz 1b +2: lgr %r2,%r3 br %r14 +3: mvc 0(256,%r4),0(%r2) + la %r2,256(%r2) + la %r4,256(%r4) +4: aghi %r3,-256 + jnm 3b +5: ex %r3,4(%r1) + sacf 0 +6: slgr %r2,%r2 + br 14 .section __ex_table,"a" - .quad 0b,3b - .quad 2b,3b - .quad 3b,4b + .quad 1b,2b + .quad 3b,0b + .quad 5b,0b .previous .align 4 From 8f61701bdf536c7a80f0f614bac91c7883804c4c Mon Sep 17 00:00:00 2001 From: Horst Hummel Date: Wed, 30 Aug 2006 14:33:33 +0200 Subject: [PATCH 419/488] [S390] dasd: fix device shutdown process. Fix clear_IO handling (need to wait for interrupt) and introduced error-handling in shutdown processing. Signed-off-by: Horst Hummel Signed-off-by: Martin Schwidefsky --- drivers/s390/block/dasd.c | 192 ++++++++++++++++++++++---------- drivers/s390/block/dasd_genhd.c | 10 +- 2 files changed, 137 insertions(+), 65 deletions(-) diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c index d8e9b95f0a1a..25c1ef6dfd44 100644 --- a/drivers/s390/block/dasd.c +++ b/drivers/s390/block/dasd.c @@ -52,7 +52,7 @@ static void dasd_setup_queue(struct dasd_device * device); static void dasd_free_queue(struct dasd_device * device); static void dasd_flush_request_queue(struct dasd_device *); static void dasd_int_handler(struct ccw_device *, unsigned long, struct irb *); -static void dasd_flush_ccw_queue(struct dasd_device *, int); +static int dasd_flush_ccw_queue(struct dasd_device *, int); static void dasd_tasklet(struct dasd_device *); static void do_kick_device(void *data); @@ -60,6 +60,7 @@ static void do_kick_device(void *data); * SECTION: Operations on the device structure. */ static wait_queue_head_t dasd_init_waitq; +static wait_queue_head_t dasd_flush_wq; /* * Allocate memory for a new device structure. @@ -121,7 +122,7 @@ dasd_free_device(struct dasd_device *device) /* * Make a new device known to the system. */ -static inline int +static int dasd_state_new_to_known(struct dasd_device *device) { int rc; @@ -145,7 +146,7 @@ dasd_state_new_to_known(struct dasd_device *device) /* * Let the system forget about a device. */ -static inline void +static int dasd_state_known_to_new(struct dasd_device * device) { /* Disable extended error reporting for this device. */ @@ -163,12 +164,13 @@ dasd_state_known_to_new(struct dasd_device * device) /* Give up reference we took in dasd_state_new_to_known. */ dasd_put_device(device); + return 0; } /* * Request the irq line for the device. */ -static inline int +static int dasd_state_known_to_basic(struct dasd_device * device) { int rc; @@ -192,17 +194,23 @@ dasd_state_known_to_basic(struct dasd_device * device) /* * Release the irq line for the device. Terminate any running i/o. */ -static inline void +static int dasd_state_basic_to_known(struct dasd_device * device) { + int rc; + dasd_gendisk_free(device); - dasd_flush_ccw_queue(device, 1); + rc = dasd_flush_ccw_queue(device, 1); + if (rc) + return rc; + DBF_DEV_EVENT(DBF_EMERG, device, "%p debug area deleted", device); if (device->debug_area != NULL) { debug_unregister(device->debug_area); device->debug_area = NULL; } device->state = DASD_STATE_KNOWN; + return 0; } /* @@ -219,7 +227,7 @@ dasd_state_basic_to_known(struct dasd_device * device) * In case the analysis returns an error, the device setup is stopped * (a fake disk was already added to allow formatting). */ -static inline int +static int dasd_state_basic_to_ready(struct dasd_device * device) { int rc; @@ -247,25 +255,31 @@ dasd_state_basic_to_ready(struct dasd_device * device) * Forget format information. Check if the target level is basic * and if it is create fake disk for formatting. */ -static inline void +static int dasd_state_ready_to_basic(struct dasd_device * device) { - dasd_flush_ccw_queue(device, 0); + int rc; + + rc = dasd_flush_ccw_queue(device, 0); + if (rc) + return rc; dasd_destroy_partitions(device); dasd_flush_request_queue(device); device->blocks = 0; device->bp_block = 0; device->s2b_shift = 0; device->state = DASD_STATE_BASIC; + return 0; } /* * Back to basic. */ -static inline void +static int dasd_state_unfmt_to_basic(struct dasd_device * device) { device->state = DASD_STATE_BASIC; + return 0; } /* @@ -273,7 +287,7 @@ dasd_state_unfmt_to_basic(struct dasd_device * device) * the requeueing of requests from the linux request queue to the * ccw queue. */ -static inline int +static int dasd_state_ready_to_online(struct dasd_device * device) { device->state = DASD_STATE_ONLINE; @@ -284,16 +298,17 @@ dasd_state_ready_to_online(struct dasd_device * device) /* * Stop the requeueing of requests again. */ -static inline void +static int dasd_state_online_to_ready(struct dasd_device * device) { device->state = DASD_STATE_READY; + return 0; } /* * Device startup state changes. */ -static inline int +static int dasd_increase_state(struct dasd_device *device) { int rc; @@ -329,30 +344,37 @@ dasd_increase_state(struct dasd_device *device) /* * Device shutdown state changes. */ -static inline int +static int dasd_decrease_state(struct dasd_device *device) { + int rc; + + rc = 0; if (device->state == DASD_STATE_ONLINE && device->target <= DASD_STATE_READY) - dasd_state_online_to_ready(device); + rc = dasd_state_online_to_ready(device); - if (device->state == DASD_STATE_READY && + if (!rc && + device->state == DASD_STATE_READY && device->target <= DASD_STATE_BASIC) - dasd_state_ready_to_basic(device); + rc = dasd_state_ready_to_basic(device); - if (device->state == DASD_STATE_UNFMT && + if (!rc && + device->state == DASD_STATE_UNFMT && device->target <= DASD_STATE_BASIC) - dasd_state_unfmt_to_basic(device); + rc = dasd_state_unfmt_to_basic(device); - if (device->state == DASD_STATE_BASIC && + if (!rc && + device->state == DASD_STATE_BASIC && device->target <= DASD_STATE_KNOWN) - dasd_state_basic_to_known(device); + rc = dasd_state_basic_to_known(device); - if (device->state == DASD_STATE_KNOWN && + if (!rc && + device->state == DASD_STATE_KNOWN && device->target <= DASD_STATE_NEW) - dasd_state_known_to_new(device); + rc = dasd_state_known_to_new(device); - return 0; + return rc; } /* @@ -701,6 +723,7 @@ dasd_term_IO(struct dasd_ccw_req * cqr) cqr->retries--; cqr->status = DASD_CQR_CLEAR; cqr->stopclk = get_clock(); + cqr->starttime = 0; DBF_DEV_EVENT(DBF_DEBUG, device, "terminate cqr %p successful", cqr); @@ -978,6 +1001,7 @@ dasd_int_handler(struct ccw_device *cdev, unsigned long intparm, irb->scsw.fctl & SCSW_FCTL_CLEAR_FUNC) { cqr->status = DASD_CQR_QUEUED; dasd_clear_timer(device); + wake_up(&dasd_flush_wq); dasd_schedule_bh(device); return; } @@ -1241,6 +1265,10 @@ __dasd_check_expire(struct dasd_device * device) cqr = list_entry(device->ccw_queue.next, struct dasd_ccw_req, list); if (cqr->status == DASD_CQR_IN_IO && cqr->expires != 0) { if (time_after_eq(jiffies, cqr->expires + cqr->starttime)) { + DEV_MESSAGE(KERN_ERR, device, + "internal error - timeout (%is) expired " + "for cqr %p (%i retries left)", + (cqr->expires/HZ), cqr, cqr->retries); if (device->discipline->term_IO(cqr) != 0) /* Hmpf, try again in 1/10 sec */ dasd_set_timer(device, 10); @@ -1285,46 +1313,100 @@ __dasd_start_head(struct dasd_device * device) dasd_set_timer(device, 50); } +static inline int +_wait_for_clear(struct dasd_ccw_req *cqr) +{ + return (cqr->status == DASD_CQR_QUEUED); +} + /* - * Remove requests from the ccw queue. + * Remove all requests from the ccw queue (all = '1') or only block device + * requests in case all = '0'. + * Take care of the erp-chain (chained via cqr->refers) and remove either + * the whole erp-chain or none of the erp-requests. + * If a request is currently running, term_IO is called and the request + * is re-queued. Prior to removing the terminated request we need to wait + * for the clear-interrupt. + * In case termination is not possible we stop processing and just finishing + * the already moved requests. */ -static void +static int dasd_flush_ccw_queue(struct dasd_device * device, int all) { + struct dasd_ccw_req *cqr, *orig, *n; + int rc, i; + struct list_head flush_queue; - struct list_head *l, *n; - struct dasd_ccw_req *cqr; INIT_LIST_HEAD(&flush_queue); spin_lock_irq(get_ccwdev_lock(device->cdev)); - list_for_each_safe(l, n, &device->ccw_queue) { - cqr = list_entry(l, struct dasd_ccw_req, list); + rc = 0; +restart: + list_for_each_entry_safe(cqr, n, &device->ccw_queue, list) { + /* get original request of erp request-chain */ + for (orig = cqr; orig->refers != NULL; orig = orig->refers); + /* Flush all request or only block device requests? */ - if (all == 0 && cqr->callback == dasd_end_request_cb) + if (all == 0 && cqr->callback != dasd_end_request_cb && + orig->callback != dasd_end_request_cb) { continue; - if (cqr->status == DASD_CQR_IN_IO) - device->discipline->term_IO(cqr); - if (cqr->status != DASD_CQR_DONE || - cqr->status != DASD_CQR_FAILED) { - cqr->status = DASD_CQR_FAILED; + } + /* Check status and move request to flush_queue */ + switch (cqr->status) { + case DASD_CQR_IN_IO: + rc = device->discipline->term_IO(cqr); + if (rc) { + /* unable to terminate requeust */ + DEV_MESSAGE(KERN_ERR, device, + "dasd flush ccw_queue is unable " + " to terminate request %p", + cqr); + /* stop flush processing */ + goto finished; + } + break; + case DASD_CQR_QUEUED: + case DASD_CQR_ERROR: + /* set request to FAILED */ cqr->stopclk = get_clock(); + cqr->status = DASD_CQR_FAILED; + break; + default: /* do not touch the others */ + break; + } + /* Rechain request (including erp chain) */ + for (i = 0; cqr != NULL; cqr = cqr->refers, i++) { + cqr->endclk = get_clock(); + list_move_tail(&cqr->list, &flush_queue); + } + if (i > 1) + /* moved more than one request - need to restart */ + goto restart; + } + +finished: + spin_unlock_irq(get_ccwdev_lock(device->cdev)); + /* Now call the callback function of flushed requests */ +restart_cb: + list_for_each_entry_safe(cqr, n, &flush_queue, list) { + if (cqr->status == DASD_CQR_CLEAR) { + /* wait for clear interrupt! */ + wait_event(dasd_flush_wq, _wait_for_clear(cqr)); + cqr->status = DASD_CQR_FAILED; } /* Process finished ERP request. */ if (cqr->refers) { __dasd_process_erp(device, cqr); - continue; + /* restart list_for_xx loop since dasd_process_erp + * might remove multiple elements */ + goto restart_cb; } - /* Rechain request on device request queue */ + /* call the callback function */ cqr->endclk = get_clock(); - list_move_tail(&cqr->list, &flush_queue); - } - spin_unlock_irq(get_ccwdev_lock(device->cdev)); - /* Now call the callback function of flushed requests */ - list_for_each_safe(l, n, &flush_queue) { - cqr = list_entry(l, struct dasd_ccw_req, list); if (cqr->callback != NULL) (cqr->callback)(cqr, cqr->callback_data); } + return rc; } /* @@ -1510,10 +1592,8 @@ dasd_sleep_on_interruptible(struct dasd_ccw_req * cqr) if (device->discipline->term_IO) { cqr->retries = -1; device->discipline->term_IO(cqr); - /*nished = - * wait (non-interruptible) for final status - * because signal ist still pending - */ + /* wait (non-interruptible) for final status + * because signal ist still pending */ spin_unlock_irq(get_ccwdev_lock(device->cdev)); wait_event(wait_q, _wait_for_wakeup(cqr)); spin_lock_irq(get_ccwdev_lock(device->cdev)); @@ -1546,19 +1626,11 @@ static inline int _dasd_term_running_cqr(struct dasd_device *device) { struct dasd_ccw_req *cqr; - int rc; if (list_empty(&device->ccw_queue)) return 0; cqr = list_entry(device->ccw_queue.next, struct dasd_ccw_req, list); - rc = device->discipline->term_IO(cqr); - if (rc == 0) { - /* termination successful */ - cqr->status = DASD_CQR_QUEUED; - cqr->startclk = cqr->stopclk = 0; - cqr->starttime = 0; - } - return rc; + return device->discipline->term_IO(cqr); } int @@ -1726,10 +1798,7 @@ dasd_flush_request_queue(struct dasd_device * device) return; spin_lock_irq(&device->request_queue_lock); - while (!list_empty(&device->request_queue->queue_head)) { - req = elv_next_request(device->request_queue); - if (req == NULL) - break; + while ((req = elv_next_request(device->request_queue))) { blkdev_dequeue_request(req); dasd_end_request(req, 0); } @@ -2091,6 +2160,7 @@ dasd_init(void) int rc; init_waitqueue_head(&dasd_init_waitq); + init_waitqueue_head(&dasd_flush_wq); /* register 'common' DASD debug area, used for all DBF_XXX calls */ dasd_debug_area = debug_register("dasd", 1, 2, 8 * sizeof (long)); diff --git a/drivers/s390/block/dasd_genhd.c b/drivers/s390/block/dasd_genhd.c index 4c272b70f41a..d163632101d2 100644 --- a/drivers/s390/block/dasd_genhd.c +++ b/drivers/s390/block/dasd_genhd.c @@ -83,10 +83,12 @@ dasd_gendisk_alloc(struct dasd_device *device) void dasd_gendisk_free(struct dasd_device *device) { - del_gendisk(device->gdp); - device->gdp->queue = NULL; - put_disk(device->gdp); - device->gdp = NULL; + if (device->gdp) { + del_gendisk(device->gdp); + device->gdp->queue = NULL; + put_disk(device->gdp); + device->gdp = NULL; + } } /* From 292888c81e74115db5e5a4a838f730a7c3662982 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 30 Aug 2006 14:33:35 +0200 Subject: [PATCH 420/488] [S390] cio: kernel stack overflow. Use different kind of assignment to make sure gcc doesn't create code that creates temp variables on the stack, assigns values to it and copies the content of the whole temp variable to the destination. This reduces stack usage of e.g. ccwgroup_driver_register from 976 to 48 bytes instead. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- drivers/s390/cio/ccwgroup.c | 14 +++++--------- drivers/s390/cio/chsc.c | 6 ++---- drivers/s390/cio/device.c | 19 +++++++------------ drivers/s390/cio/device_fsm.c | 20 ++++++++------------ 4 files changed, 22 insertions(+), 37 deletions(-) diff --git a/drivers/s390/cio/ccwgroup.c b/drivers/s390/cio/ccwgroup.c index 3cba6c9fab11..38954f5cd14c 100644 --- a/drivers/s390/cio/ccwgroup.c +++ b/drivers/s390/cio/ccwgroup.c @@ -183,11 +183,9 @@ ccwgroup_create(struct device *root, gdev->creator_id = creator_id; gdev->count = argc; - gdev->dev = (struct device ) { - .bus = &ccwgroup_bus_type, - .parent = root, - .release = ccwgroup_release, - }; + gdev->dev.bus = &ccwgroup_bus_type; + gdev->dev.parent = root; + gdev->dev.release = ccwgroup_release; snprintf (gdev->dev.bus_id, BUS_ID_SIZE, "%s", gdev->cdev[0]->dev.bus_id); @@ -391,10 +389,8 @@ int ccwgroup_driver_register (struct ccwgroup_driver *cdriver) { /* register our new driver with the core */ - cdriver->driver = (struct device_driver) { - .bus = &ccwgroup_bus_type, - .name = cdriver->name, - }; + cdriver->driver.bus = &ccwgroup_bus_type; + cdriver->driver.name = cdriver->name; return driver_register(&cdriver->driver); } diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c index 61ce3f1d5228..6405e9bd6eb3 100644 --- a/drivers/s390/cio/chsc.c +++ b/drivers/s390/cio/chsc.c @@ -1391,10 +1391,8 @@ new_channel_path(int chpid) /* fill in status, etc. */ chp->id = chpid; chp->state = 1; - chp->dev = (struct device) { - .parent = &css[0]->device, - .release = chp_release, - }; + chp->dev.parent = &css[0]->device; + chp->dev.release = chp_release; snprintf(chp->dev.bus_id, BUS_ID_SIZE, "chp0.%x", chpid); /* Obtain channel path description and fill it in. */ diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c index 585fa04233c3..646da5640401 100644 --- a/drivers/s390/cio/device.c +++ b/drivers/s390/cio/device.c @@ -556,12 +556,11 @@ get_disc_ccwdev_by_devno(unsigned int devno, unsigned int ssid, struct ccw_device *sibling) { struct device *dev; - struct match_data data = { - .devno = devno, - .ssid = ssid, - .sibling = sibling, - }; + struct match_data data; + data.devno = devno; + data.ssid = ssid; + data.sibling = sibling; dev = bus_find_device(&ccw_bus_type, NULL, &data, match_devno); return dev ? to_ccwdev(dev) : NULL; @@ -835,10 +834,8 @@ io_subchannel_probe (struct subchannel *sch) return -ENOMEM; } atomic_set(&cdev->private->onoff, 0); - cdev->dev = (struct device) { - .parent = &sch->dev, - .release = ccw_device_release, - }; + cdev->dev.parent = &sch->dev; + cdev->dev.release = ccw_device_release; INIT_LIST_HEAD(&cdev->private->kick_work.entry); /* Do first half of device_register. */ device_initialize(&cdev->dev); @@ -977,9 +974,7 @@ ccw_device_console_enable (struct ccw_device *cdev, struct subchannel *sch) int rc; /* Initialize the ccw_device structure. */ - cdev->dev = (struct device) { - .parent = &sch->dev, - }; + cdev->dev.parent= &sch->dev; rc = io_subchannel_recog(cdev, sch); if (rc) return rc; diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c index 6d91c2eb205b..35e162ba6d54 100644 --- a/drivers/s390/cio/device_fsm.c +++ b/drivers/s390/cio/device_fsm.c @@ -267,12 +267,10 @@ ccw_device_recog_done(struct ccw_device *cdev, int state) notify = 1; } /* fill out sense information */ - cdev->id = (struct ccw_device_id) { - .cu_type = cdev->private->senseid.cu_type, - .cu_model = cdev->private->senseid.cu_model, - .dev_type = cdev->private->senseid.dev_type, - .dev_model = cdev->private->senseid.dev_model, - }; + cdev->id.cu_type = cdev->private->senseid.cu_type; + cdev->id.cu_model = cdev->private->senseid.cu_model; + cdev->id.dev_type = cdev->private->senseid.dev_type; + cdev->id.dev_model = cdev->private->senseid.dev_model; if (notify) { cdev->private->state = DEV_STATE_OFFLINE; if (same_dev) { @@ -566,12 +564,10 @@ ccw_device_verify_done(struct ccw_device *cdev, int err) /* Deliver fake irb to device driver, if needed. */ if (cdev->private->flags.fake_irb) { memset(&cdev->private->irb, 0, sizeof(struct irb)); - cdev->private->irb.scsw = (struct scsw) { - .cc = 1, - .fctl = SCSW_FCTL_START_FUNC, - .actl = SCSW_ACTL_START_PEND, - .stctl = SCSW_STCTL_STATUS_PEND, - }; + cdev->private->irb.scsw.cc = 1; + cdev->private->irb.scsw.fctl = SCSW_FCTL_START_FUNC; + cdev->private->irb.scsw.actl = SCSW_ACTL_START_PEND; + cdev->private->irb.scsw.stctl = SCSW_STCTL_STATUS_PEND; cdev->private->flags.fake_irb = 0; if (cdev->handler) cdev->handler(cdev, cdev->private->intparm, From 3b88508a31a77eb3487154922e1eff282dc1d863 Mon Sep 17 00:00:00 2001 From: Peter Oberparleiter Date: Wed, 30 Aug 2006 14:33:37 +0200 Subject: [PATCH 421/488] [S390] cio: no path after machine check. Devices enter no-path state after disabling a channel path via the SE even though another path has been reenabled at the SE. The devices are set into no-path state before triggering path verification even though other paths may have become available. To fix this trigger path verification before setting a device into no-path state. Signed-off-by: Peter Oberparleiter Signed-off-by: Martin Schwidefsky --- drivers/s390/cio/chsc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c index 6405e9bd6eb3..c28444af0919 100644 --- a/drivers/s390/cio/chsc.c +++ b/drivers/s390/cio/chsc.c @@ -238,8 +238,6 @@ s390_subchannel_remove_chpid(struct device *dev, void *data) /* Check for single path devices. */ if (sch->schib.pmcw.pim == 0x80) goto out_unreg; - if (sch->vpm == mask) - goto out_unreg; if ((sch->schib.scsw.actl & SCSW_ACTL_DEVACT) && (sch->schib.scsw.actl & SCSW_ACTL_SCHACT) && @@ -258,6 +256,8 @@ s390_subchannel_remove_chpid(struct device *dev, void *data) /* trigger path verification. */ if (sch->driver && sch->driver->verify) sch->driver->verify(&sch->dev); + else if (sch->vpm == mask) + goto out_unreg; out_unlock: spin_unlock_irq(&sch->lock); return 0; From 7b7db1b59563aebe2f4d2ba850468afb2c87c82a Mon Sep 17 00:00:00 2001 From: Stefan Bader Date: Wed, 30 Aug 2006 14:33:39 +0200 Subject: [PATCH 422/488] [S390] cio: unsolicited interrupts during sense pgid. Calls to set a device online with path grouping may get stuck in some cases because certain device conditions where discarded after unsolicited interrupts. Check subchannel activity after unsolicited interrupts and retry the operation if the subchannel is idle. Signed-off-by: Stefan Bader Signed-off-by: Martin Schwidefsky --- drivers/s390/cio/device_pgid.c | 27 +++++++++++++++++++++------ 1 file changed, 21 insertions(+), 6 deletions(-) diff --git a/drivers/s390/cio/device_pgid.c b/drivers/s390/cio/device_pgid.c index 32610fd8868e..1693a102dcfe 100644 --- a/drivers/s390/cio/device_pgid.c +++ b/drivers/s390/cio/device_pgid.c @@ -23,6 +23,21 @@ #include "device.h" #include "ioasm.h" +/* + * Helper function called from interrupt context to decide whether an + * operation should be tried again. + */ +static int __ccw_device_should_retry(struct scsw *scsw) +{ + /* CC is only valid if start function bit is set. */ + if ((scsw->fctl & SCSW_FCTL_START_FUNC) && scsw->cc == 1) + return 1; + /* No more activity. For sense and set PGID we stubbornly try again. */ + if (!scsw->actl) + return 1; + return 0; +} + /* * Start Sense Path Group ID helper function. Used in ccw_device_recog * and ccw_device_sense_pgid. @@ -155,10 +170,10 @@ ccw_device_sense_pgid_irq(struct ccw_device *cdev, enum dev_event dev_event) int ret; irb = (struct irb *) __LC_IRB; - /* Retry sense pgid for cc=1. */ + if (irb->scsw.stctl == (SCSW_STCTL_STATUS_PEND | SCSW_STCTL_ALERT_STATUS)) { - if (irb->scsw.cc == 1) { + if (__ccw_device_should_retry(&irb->scsw)) { ret = __ccw_device_sense_pgid_start(cdev); if (ret && ret != -EBUSY) ccw_device_sense_pgid_done(cdev, ret); @@ -391,10 +406,10 @@ ccw_device_verify_irq(struct ccw_device *cdev, enum dev_event dev_event) int ret; irb = (struct irb *) __LC_IRB; - /* Retry set pgid for cc=1. */ + if (irb->scsw.stctl == (SCSW_STCTL_STATUS_PEND | SCSW_STCTL_ALERT_STATUS)) { - if (irb->scsw.cc == 1) + if (__ccw_device_should_retry(&irb->scsw)) __ccw_device_verify_start(cdev); return; } @@ -494,10 +509,10 @@ ccw_device_disband_irq(struct ccw_device *cdev, enum dev_event dev_event) int ret; irb = (struct irb *) __LC_IRB; - /* Retry set pgid for cc=1. */ + if (irb->scsw.stctl == (SCSW_STCTL_STATUS_PEND | SCSW_STCTL_ALERT_STATUS)) { - if (irb->scsw.cc == 1) + if (__ccw_device_should_retry(&irb->scsw)) __ccw_device_disband_start(cdev); return; } From 0355b3e039c621d15321fd0d5cf72d8bdb8f723d Mon Sep 17 00:00:00 2001 From: Daniel Jacobowitz Date: Wed, 30 Aug 2006 15:06:39 +0100 Subject: [PATCH 423/488] [ARM] 3750/3: Fix double VFP emulation for EABI kernels Patch from Daniel Jacobowitz vfp_put_double didn't work in a CONFIG_AEABI kernel. By swapping the arguments, we arrange for them to be in the same place regardless of ABI. I made the same change to vfp_put_float for consistency. Signed-off-by: Daniel Jacobowitz Signed-off-by: Russell King --- arch/arm/vfp/vfp.h | 10 ++-------- arch/arm/vfp/vfpdouble.c | 20 ++++++++++---------- arch/arm/vfp/vfphw.S | 10 +++++----- arch/arm/vfp/vfpsingle.c | 20 ++++++++++---------- 4 files changed, 27 insertions(+), 33 deletions(-) diff --git a/arch/arm/vfp/vfp.h b/arch/arm/vfp/vfp.h index 5fbdf81a8aaf..96fdf30f6a3b 100644 --- a/arch/arm/vfp/vfp.h +++ b/arch/arm/vfp/vfp.h @@ -156,7 +156,7 @@ struct vfp_single { }; extern s32 vfp_get_float(unsigned int reg); -extern void vfp_put_float(unsigned int reg, s32 val); +extern void vfp_put_float(s32 val, unsigned int reg); /* * VFP_SINGLE_MANTISSA_BITS - number of bits in the mantissa @@ -267,7 +267,7 @@ struct vfp_double { */ #define VFP_REG_ZERO 16 extern u64 vfp_get_double(unsigned int reg); -extern void vfp_put_double(unsigned int reg, u64 val); +extern void vfp_put_double(u64 val, unsigned int reg); #define VFP_DOUBLE_MANTISSA_BITS (52) #define VFP_DOUBLE_EXPONENT_BITS (11) @@ -341,12 +341,6 @@ static inline int vfp_double_type(struct vfp_double *s) u32 vfp_double_normaliseround(int dd, struct vfp_double *vd, u32 fpscr, u32 exceptions, const char *func); -/* - * System registers - */ -extern u32 vfp_get_sys(unsigned int reg); -extern void vfp_put_sys(unsigned int reg, u32 val); - u32 vfp_estimate_sqrt_significand(u32 exponent, u32 significand); /* diff --git a/arch/arm/vfp/vfpdouble.c b/arch/arm/vfp/vfpdouble.c index 04bd3425b29b..add48e36c2dc 100644 --- a/arch/arm/vfp/vfpdouble.c +++ b/arch/arm/vfp/vfpdouble.c @@ -195,7 +195,7 @@ u32 vfp_double_normaliseround(int dd, struct vfp_double *vd, u32 fpscr, u32 exce s64 d = vfp_double_pack(vd); pr_debug("VFP: %s: d(d%d)=%016llx exceptions=%08x\n", func, dd, d, exceptions); - vfp_put_double(dd, d); + vfp_put_double(d, dd); } return exceptions; } @@ -250,19 +250,19 @@ vfp_propagate_nan(struct vfp_double *vdd, struct vfp_double *vdn, */ static u32 vfp_double_fabs(int dd, int unused, int dm, u32 fpscr) { - vfp_put_double(dd, vfp_double_packed_abs(vfp_get_double(dm))); + vfp_put_double(vfp_double_packed_abs(vfp_get_double(dm)), dd); return 0; } static u32 vfp_double_fcpy(int dd, int unused, int dm, u32 fpscr) { - vfp_put_double(dd, vfp_get_double(dm)); + vfp_put_double(vfp_get_double(dm), dd); return 0; } static u32 vfp_double_fneg(int dd, int unused, int dm, u32 fpscr) { - vfp_put_double(dd, vfp_double_packed_negate(vfp_get_double(dm))); + vfp_put_double(vfp_double_packed_negate(vfp_get_double(dm)), dd); return 0; } @@ -287,7 +287,7 @@ static u32 vfp_double_fsqrt(int dd, int unused, int dm, u32 fpscr) vdp = &vfp_double_default_qnan; ret = FPSCR_IOC; } - vfp_put_double(dd, vfp_double_pack(vdp)); + vfp_put_double(vfp_double_pack(vdp), dd); return ret; } @@ -476,7 +476,7 @@ static u32 vfp_double_fcvts(int sd, int unused, int dm, u32 fpscr) return vfp_single_normaliseround(sd, &vsd, fpscr, exceptions, "fcvts"); pack_nan: - vfp_put_float(sd, vfp_single_pack(&vsd)); + vfp_put_float(vfp_single_pack(&vsd), sd); return exceptions; } @@ -573,7 +573,7 @@ static u32 vfp_double_ftoui(int sd, int unused, int dm, u32 fpscr) pr_debug("VFP: ftoui: d(s%d)=%08x exceptions=%08x\n", sd, d, exceptions); - vfp_put_float(sd, d); + vfp_put_float(d, sd); return exceptions; } @@ -648,7 +648,7 @@ static u32 vfp_double_ftosi(int sd, int unused, int dm, u32 fpscr) pr_debug("VFP: ftosi: d(s%d)=%08x exceptions=%08x\n", sd, d, exceptions); - vfp_put_float(sd, (s32)d); + vfp_put_float((s32)d, sd); return exceptions; } @@ -1084,7 +1084,7 @@ static u32 vfp_double_fdiv(int dd, int dn, int dm, u32 fpscr) vdn_nan: exceptions = vfp_propagate_nan(&vdd, &vdn, &vdm, fpscr); pack: - vfp_put_double(dd, vfp_double_pack(&vdd)); + vfp_put_double(vfp_double_pack(&vdd), dd); return exceptions; vdm_nan: @@ -1104,7 +1104,7 @@ static u32 vfp_double_fdiv(int dd, int dn, int dm, u32 fpscr) goto pack; invalid: - vfp_put_double(dd, vfp_double_pack(&vfp_double_default_qnan)); + vfp_put_double(vfp_double_pack(&vfp_double_default_qnan), dd); return FPSCR_IOC; } diff --git a/arch/arm/vfp/vfphw.S b/arch/arm/vfp/vfphw.S index eb683cd77163..e51e6679c402 100644 --- a/arch/arm/vfp/vfphw.S +++ b/arch/arm/vfp/vfphw.S @@ -178,12 +178,12 @@ vfp_get_float: .globl vfp_put_float vfp_put_float: - add pc, pc, r0, lsl #3 + add pc, pc, r1, lsl #3 mov r0, r0 .irp dr,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 - mcr p10, 0, r1, c\dr, c0, 0 @ fmsr r0, s0 + mcr p10, 0, r0, c\dr, c0, 0 @ fmsr r0, s0 mov pc, lr - mcr p10, 0, r1, c\dr, c0, 4 @ fmsr r0, s1 + mcr p10, 0, r0, c\dr, c0, 4 @ fmsr r0, s1 mov pc, lr .endr @@ -203,9 +203,9 @@ vfp_get_double: .globl vfp_put_double vfp_put_double: - add pc, pc, r0, lsl #3 + add pc, pc, r2, lsl #3 mov r0, r0 .irp dr,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 - fmdrr d\dr, r1, r2 + fmdrr d\dr, r0, r1 mov pc, lr .endr diff --git a/arch/arm/vfp/vfpsingle.c b/arch/arm/vfp/vfpsingle.c index 78d7cac5f36b..8f6c179cafbe 100644 --- a/arch/arm/vfp/vfpsingle.c +++ b/arch/arm/vfp/vfpsingle.c @@ -200,7 +200,7 @@ u32 vfp_single_normaliseround(int sd, struct vfp_single *vs, u32 fpscr, u32 exce s32 d = vfp_single_pack(vs); pr_debug("VFP: %s: d(s%d)=%08x exceptions=%08x\n", func, sd, d, exceptions); - vfp_put_float(sd, d); + vfp_put_float(d, sd); } return exceptions; @@ -257,19 +257,19 @@ vfp_propagate_nan(struct vfp_single *vsd, struct vfp_single *vsn, */ static u32 vfp_single_fabs(int sd, int unused, s32 m, u32 fpscr) { - vfp_put_float(sd, vfp_single_packed_abs(m)); + vfp_put_float(vfp_single_packed_abs(m), sd); return 0; } static u32 vfp_single_fcpy(int sd, int unused, s32 m, u32 fpscr) { - vfp_put_float(sd, m); + vfp_put_float(m, sd); return 0; } static u32 vfp_single_fneg(int sd, int unused, s32 m, u32 fpscr) { - vfp_put_float(sd, vfp_single_packed_negate(m)); + vfp_put_float(vfp_single_packed_negate(m), sd); return 0; } @@ -333,7 +333,7 @@ static u32 vfp_single_fsqrt(int sd, int unused, s32 m, u32 fpscr) vsp = &vfp_single_default_qnan; ret = FPSCR_IOC; } - vfp_put_float(sd, vfp_single_pack(vsp)); + vfp_put_float(vfp_single_pack(vsp), sd); return ret; } @@ -517,7 +517,7 @@ static u32 vfp_single_fcvtd(int dd, int unused, s32 m, u32 fpscr) return vfp_double_normaliseround(dd, &vdd, fpscr, exceptions, "fcvtd"); pack_nan: - vfp_put_double(dd, vfp_double_pack(&vdd)); + vfp_put_double(vfp_double_pack(&vdd), dd); return exceptions; } @@ -613,7 +613,7 @@ static u32 vfp_single_ftoui(int sd, int unused, s32 m, u32 fpscr) pr_debug("VFP: ftoui: d(s%d)=%08x exceptions=%08x\n", sd, d, exceptions); - vfp_put_float(sd, d); + vfp_put_float(d, sd); return exceptions; } @@ -692,7 +692,7 @@ static u32 vfp_single_ftosi(int sd, int unused, s32 m, u32 fpscr) pr_debug("VFP: ftosi: d(s%d)=%08x exceptions=%08x\n", sd, d, exceptions); - vfp_put_float(sd, (s32)d); + vfp_put_float((s32)d, sd); return exceptions; } @@ -1127,7 +1127,7 @@ static u32 vfp_single_fdiv(int sd, int sn, s32 m, u32 fpscr) vsn_nan: exceptions = vfp_propagate_nan(&vsd, &vsn, &vsm, fpscr); pack: - vfp_put_float(sd, vfp_single_pack(&vsd)); + vfp_put_float(vfp_single_pack(&vsd), sd); return exceptions; vsm_nan: @@ -1147,7 +1147,7 @@ static u32 vfp_single_fdiv(int sd, int sn, s32 m, u32 fpscr) goto pack; invalid: - vfp_put_float(sd, vfp_single_pack(&vfp_single_default_qnan)); + vfp_put_float(vfp_single_pack(&vfp_single_default_qnan), sd); return FPSCR_IOC; } From ddcf36511d213501a035f168334046ba30a61a11 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Wed, 30 Aug 2006 19:37:05 +0200 Subject: [PATCH 424/488] [PATCH] x86_64: Update defconfig Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds --- arch/x86_64/defconfig | 66 +++++++++++-------------------------------- 1 file changed, 16 insertions(+), 50 deletions(-) diff --git a/arch/x86_64/defconfig b/arch/x86_64/defconfig index 840d5d93d5cc..5fb970715941 100644 --- a/arch/x86_64/defconfig +++ b/arch/x86_64/defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.18-rc2 -# Tue Jul 18 17:13:20 2006 +# Linux kernel version: 2.6.18-rc4 +# Thu Aug 24 21:05:55 2006 # CONFIG_X86_64=y CONFIG_64BIT=y @@ -201,7 +201,7 @@ CONFIG_ACPI_THERMAL=y CONFIG_ACPI_NUMA=y # CONFIG_ACPI_ASUS is not set # CONFIG_ACPI_IBM is not set -CONFIG_ACPI_TOSHIBA=y +# CONFIG_ACPI_TOSHIBA is not set CONFIG_ACPI_BLACKLIST_YEAR=0 # CONFIG_ACPI_DEBUG is not set CONFIG_ACPI_EC=y @@ -216,7 +216,7 @@ CONFIG_ACPI_CONTAINER=y # CONFIG_CPU_FREQ=y CONFIG_CPU_FREQ_TABLE=y -# CONFIG_CPU_FREQ_DEBUG is not set +CONFIG_CPU_FREQ_DEBUG=y CONFIG_CPU_FREQ_STAT=y # CONFIG_CPU_FREQ_STAT_DETAILS is not set CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y @@ -495,8 +495,9 @@ CONFIG_SCSI=y CONFIG_BLK_DEV_SD=y # CONFIG_CHR_DEV_ST is not set # CONFIG_CHR_DEV_OSST is not set -# CONFIG_BLK_DEV_SR is not set -# CONFIG_CHR_DEV_SG is not set +CONFIG_BLK_DEV_SR=y +# CONFIG_BLK_DEV_SR_VENDOR is not set +CONFIG_CHR_DEV_SG=y # CONFIG_CHR_DEV_SCH is not set # @@ -512,7 +513,7 @@ CONFIG_SCSI_CONSTANTS=y CONFIG_SCSI_SPI_ATTRS=y CONFIG_SCSI_FC_ATTRS=y # CONFIG_SCSI_ISCSI_ATTRS is not set -# CONFIG_SCSI_SAS_ATTRS is not set +CONFIG_SCSI_SAS_ATTRS=y # # SCSI low-level drivers @@ -538,7 +539,7 @@ CONFIG_MEGARAID_MAILBOX=y CONFIG_MEGARAID_SAS=y CONFIG_SCSI_SATA=y CONFIG_SCSI_SATA_AHCI=y -# CONFIG_SCSI_SATA_SVW is not set +CONFIG_SCSI_SATA_SVW=y CONFIG_SCSI_ATA_PIIX=y # CONFIG_SCSI_SATA_MV is not set CONFIG_SCSI_SATA_NV=y @@ -589,7 +590,7 @@ CONFIG_BLK_DEV_DM=y CONFIG_FUSION=y CONFIG_FUSION_SPI=y # CONFIG_FUSION_FC is not set -# CONFIG_FUSION_SAS is not set +CONFIG_FUSION_SAS=y CONFIG_FUSION_MAX_SGE=128 # CONFIG_FUSION_CTL is not set @@ -675,7 +676,7 @@ CONFIG_NET_PCI=y # CONFIG_PCNET32 is not set # CONFIG_AMD8111_ETH is not set # CONFIG_ADAPTEC_STARFIRE is not set -# CONFIG_B44 is not set +CONFIG_B44=y CONFIG_FORCEDETH=y # CONFIG_DGRS is not set # CONFIG_EEPRO100 is not set @@ -712,7 +713,7 @@ CONFIG_E1000=y # CONFIG_SK98LIN is not set # CONFIG_VIA_VELOCITY is not set CONFIG_TIGON3=y -# CONFIG_BNX2 is not set +CONFIG_BNX2=y # # Ethernet (10000 Mbit) @@ -842,44 +843,7 @@ CONFIG_LEGACY_PTY_COUNT=256 # # Watchdog Cards # -CONFIG_WATCHDOG=y -# CONFIG_WATCHDOG_NOWAYOUT is not set - -# -# Watchdog Device Drivers -# -CONFIG_SOFT_WATCHDOG=y -# CONFIG_ACQUIRE_WDT is not set -# CONFIG_ADVANTECH_WDT is not set -# CONFIG_ALIM1535_WDT is not set -# CONFIG_ALIM7101_WDT is not set -# CONFIG_SC520_WDT is not set -# CONFIG_EUROTECH_WDT is not set -# CONFIG_IB700_WDT is not set -# CONFIG_IBMASR is not set -# CONFIG_WAFER_WDT is not set -# CONFIG_I6300ESB_WDT is not set -# CONFIG_I8XX_TCO is not set -# CONFIG_SC1200_WDT is not set -# CONFIG_60XX_WDT is not set -# CONFIG_SBC8360_WDT is not set -# CONFIG_CPU5_WDT is not set -# CONFIG_W83627HF_WDT is not set -# CONFIG_W83877F_WDT is not set -# CONFIG_W83977F_WDT is not set -# CONFIG_MACHZ_WDT is not set -# CONFIG_SBC_EPX_C3_WATCHDOG is not set - -# -# PCI-based Watchdog Cards -# -# CONFIG_PCIPCWATCHDOG is not set -# CONFIG_WDTPCI is not set - -# -# USB-based Watchdog Cards -# -# CONFIG_USBPCWATCHDOG is not set +# CONFIG_WATCHDOG is not set CONFIG_HW_RANDOM=y CONFIG_HW_RANDOM_INTEL=y CONFIG_HW_RANDOM_AMD=y @@ -1056,6 +1020,7 @@ CONFIG_VGACON_SOFT_SCROLLBACK=y CONFIG_VGACON_SOFT_SCROLLBACK_SIZE=256 CONFIG_VIDEO_SELECT=y CONFIG_DUMMY_CONSOLE=y +# CONFIG_BACKLIGHT_LCD_SUPPORT is not set # # Sound @@ -1301,7 +1266,7 @@ CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y # CONFIG_QUOTA is not set CONFIG_DNOTIFY=y -CONFIG_AUTOFS_FS=y +# CONFIG_AUTOFS_FS is not set CONFIG_AUTOFS4_FS=y # CONFIG_FUSE_FS is not set @@ -1494,4 +1459,5 @@ CONFIG_DEBUG_STACKOVERFLOW=y # CONFIG_CRC16 is not set CONFIG_CRC32=y # CONFIG_LIBCRC32C is not set +CONFIG_ZLIB_INFLATE=y CONFIG_PLIST=y From 11012d419cfc0e0f78ca356aca03674217910124 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Wed, 30 Aug 2006 19:37:06 +0200 Subject: [PATCH 425/488] [PATCH] x86: Revert e820 MCFG heuristics The check for the MCFG table being reserved in the e820 map was originally added to detect a broken BIOS in a preproduction Intel SDV. However it also breaks the Apple x86 Macs, which can't supply this properly, but need a working MCFG. With this patch they wouldn't use the MCFG and not work. After some discussion I think it's best to remove the heuristic again. It also failed on some other boxes (although it didn't cause much problems there because old style port access for PCI config space still works as fallback), but the preproduction SDVs can just use pci=nommcfg. Supporting production machines properly is more important. Edgar Hucek did all the debugging work. Cc: Arjan van de Ven Cc: Edgar Hucek Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds --- arch/i386/kernel/setup.c | 32 -------------------------------- arch/i386/pci/mmconfig.c | 9 --------- arch/x86_64/kernel/e820.c | 29 ----------------------------- arch/x86_64/pci/mmconfig.c | 9 --------- 4 files changed, 79 deletions(-) diff --git a/arch/i386/kernel/setup.c b/arch/i386/kernel/setup.c index f1682206d304..345ffb7d904d 100644 --- a/arch/i386/kernel/setup.c +++ b/arch/i386/kernel/setup.c @@ -956,38 +956,6 @@ efi_memory_present_wrapper(unsigned long start, unsigned long end, void *arg) return 0; } - /* - * This function checks if the entire range is mapped with type. - * - * Note: this function only works correct if the e820 table is sorted and - * not-overlapping, which is the case - */ -int __init -e820_all_mapped(unsigned long s, unsigned long e, unsigned type) -{ - u64 start = s; - u64 end = e; - int i; - for (i = 0; i < e820.nr_map; i++) { - struct e820entry *ei = &e820.map[i]; - if (type && ei->type != type) - continue; - /* is the region (part) in overlap with the current region ?*/ - if (ei->addr >= end || ei->addr + ei->size <= start) - continue; - /* if the region is at the beginning of we move - * start to the end of the region since it's ok until there - */ - if (ei->addr <= start) - start = ei->addr + ei->size; - /* if start is now at or beyond end, we're done, full - * coverage */ - if (start >= end) - return 1; /* we're done */ - } - return 0; -} - /* * Find the highest page frame number we have available */ diff --git a/arch/i386/pci/mmconfig.c b/arch/i386/pci/mmconfig.c index 972180f738d9..5effb2e663ed 100644 --- a/arch/i386/pci/mmconfig.c +++ b/arch/i386/pci/mmconfig.c @@ -198,15 +198,6 @@ void __init pci_mmcfg_init(void) (pci_mmcfg_config[0].base_address == 0)) return; - if (!e820_all_mapped(pci_mmcfg_config[0].base_address, - pci_mmcfg_config[0].base_address + MMCONFIG_APER_MIN, - E820_RESERVED)) { - printk(KERN_ERR "PCI: BIOS Bug: MCFG area at %x is not E820-reserved\n", - pci_mmcfg_config[0].base_address); - printk(KERN_ERR "PCI: Not using MMCONFIG.\n"); - return; - } - printk(KERN_INFO "PCI: Using MMCONFIG\n"); raw_pci_ops = &pci_mmcfg; pci_probe = (pci_probe & ~PCI_PROBE_MASK) | PCI_PROBE_MMCONF; diff --git a/arch/x86_64/kernel/e820.c b/arch/x86_64/kernel/e820.c index e56c2adf57a4..d81e3d6dd241 100644 --- a/arch/x86_64/kernel/e820.c +++ b/arch/x86_64/kernel/e820.c @@ -104,35 +104,6 @@ e820_any_mapped(unsigned long start, unsigned long end, unsigned type) return 0; } -/* - * This function checks if the entire range is mapped with type. - * - * Note: this function only works correct if the e820 table is sorted and - * not-overlapping, which is the case - */ -int __init e820_all_mapped(unsigned long start, unsigned long end, unsigned type) -{ - int i; - for (i = 0; i < e820.nr_map; i++) { - struct e820entry *ei = &e820.map[i]; - if (type && ei->type != type) - continue; - /* is the region (part) in overlap with the current region ?*/ - if (ei->addr >= end || ei->addr + ei->size <= start) - continue; - - /* if the region is at the beginning of we move - * start to the end of the region since it's ok until there - */ - if (ei->addr <= start) - start = ei->addr + ei->size; - /* if start is now at or beyond end, we're done, full coverage */ - if (start >= end) - return 1; /* we're done */ - } - return 0; -} - /* * Find a free area in a specific range. */ diff --git a/arch/x86_64/pci/mmconfig.c b/arch/x86_64/pci/mmconfig.c index 3c55c76c6fd5..8a4a0f9263ce 100644 --- a/arch/x86_64/pci/mmconfig.c +++ b/arch/x86_64/pci/mmconfig.c @@ -177,15 +177,6 @@ void __init pci_mmcfg_init(void) (pci_mmcfg_config[0].base_address == 0)) return; - if (!e820_all_mapped(pci_mmcfg_config[0].base_address, - pci_mmcfg_config[0].base_address + MMCONFIG_APER_MIN, - E820_RESERVED)) { - printk(KERN_ERR "PCI: BIOS Bug: MCFG area at %x is not E820-reserved\n", - pci_mmcfg_config[0].base_address); - printk(KERN_ERR "PCI: Not using MMCONFIG.\n"); - return; - } - /* RED-PEN i386 doesn't do _nocache right now */ pci_mmcfg_virt = kmalloc(sizeof(*pci_mmcfg_virt) * pci_mmcfg_config_num, GFP_KERNEL); if (pci_mmcfg_virt == NULL) { From c05991ed12fd71e539dd8de8f5663450cd0c934c Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Wed, 30 Aug 2006 19:37:08 +0200 Subject: [PATCH 426/488] [PATCH] x86_64: Add kernel thread stack frame termination for properly stopping stack unwinds. One open question: Should these added pushes perhaps be made conditional upon CONFIG_STACK_UNWIND or CONFIG_UNWIND_INFO? [AK: Not needed -- these are all very slow paths] Signed-off-by: Jan Beulich Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds --- arch/x86_64/kernel/entry.S | 3 +++ arch/x86_64/kernel/head.S | 1 + 2 files changed, 4 insertions(+) diff --git a/arch/x86_64/kernel/entry.S b/arch/x86_64/kernel/entry.S index 6f810424df44..aa8d8939abc1 100644 --- a/arch/x86_64/kernel/entry.S +++ b/arch/x86_64/kernel/entry.S @@ -973,6 +973,8 @@ ENTRY(kernel_thread) ENDPROC(kernel_thread) child_rip: + pushq $0 # fake return address + CFI_STARTPROC /* * Here we are in the child and the registers are set as they were * at kernel_thread() invocation in the parent. @@ -983,6 +985,7 @@ child_rip: # exit xorl %edi, %edi call do_exit + CFI_ENDPROC ENDPROC(child_rip) /* diff --git a/arch/x86_64/kernel/head.S b/arch/x86_64/kernel/head.S index 6df05e6034fa..c9739ca81d06 100644 --- a/arch/x86_64/kernel/head.S +++ b/arch/x86_64/kernel/head.S @@ -191,6 +191,7 @@ startup_64: * jump */ movq initial_code(%rip),%rax + pushq $0 # fake return address jmp *%rax /* SMP bootup changes these two */ From 29fe5f3bafb644c33269fb0f2a719d4809a07332 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Wed, 30 Aug 2006 19:37:09 +0200 Subject: [PATCH 427/488] [PATCH] i386: Add kernel thread stack frame termination for properly stopping stack unwinds. One open question: Should this added push perhaps be made conditional upon CONFIG_STACK_UNWIND or CONFIG_UNWIND_INFO? [AK: not needed, these are all very slow paths] Signed-off-by: Jan Beulich Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds --- arch/i386/kernel/head.S | 14 ++++---------- 1 file changed, 4 insertions(+), 10 deletions(-) diff --git a/arch/i386/kernel/head.S b/arch/i386/kernel/head.S index eb79aa2fa8bb..a6b8bd89aa27 100644 --- a/arch/i386/kernel/head.S +++ b/arch/i386/kernel/head.S @@ -317,20 +317,14 @@ is386: movl $2,%ecx # set MP movl %eax,%gs lldt %ax cld # gcc2 wants the direction flag cleared at all times + pushl %eax # fake return address #ifdef CONFIG_SMP movb ready, %cl movb $1, ready - cmpb $0,%cl - je 1f # the first CPU calls start_kernel - # all other CPUs call initialize_secondary - call initialize_secondary - jmp L6 -1: + cmpb $0,%cl # the first CPU calls start_kernel + jne initialize_secondary # all other CPUs call initialize_secondary #endif /* CONFIG_SMP */ - call start_kernel -L6: - jmp L6 # main should never return here, but - # just in case, we know what happens. + jmp start_kernel /* * We depend on ET to be correct. This checks for 287/387. From 61171b8dbd36b0cc34d3813a59a8e4dc2984414d Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Wed, 30 Aug 2006 19:37:10 +0200 Subject: [PATCH 428/488] [PATCH] x86: fix x86 cpuid keys used in alternative_smp() By hard-coding the cpuid keys for alternative_smp() rather than using the symbolic constant it turned out that incorrect values were used on both i386 (0x68 instead of 0x69) and x86-64 (0x66 instead of 0x68). Signed-off-by: Jan Beulich Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds --- include/asm-i386/alternative.h | 2 +- include/asm-x86_64/alternative.h | 3 ++- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/include/asm-i386/alternative.h b/include/asm-i386/alternative.h index 96adbabec740..bb3b6317c810 100644 --- a/include/asm-i386/alternative.h +++ b/include/asm-i386/alternative.h @@ -116,7 +116,7 @@ static inline void alternatives_smp_switch(int smp) {} " .align 4\n" \ " .long 661b\n" /* label */ \ " .long 663f\n" /* new instruction */ \ - " .byte 0x68\n" /* X86_FEATURE_UP */ \ + " .byte " __stringify(X86_FEATURE_UP) "\n" \ " .byte 662b-661b\n" /* sourcelen */ \ " .byte 664f-663f\n" /* replacementlen */ \ ".previous\n" \ diff --git a/include/asm-x86_64/alternative.h b/include/asm-x86_64/alternative.h index aa67bfd1b3ce..709ad3f0d354 100644 --- a/include/asm-x86_64/alternative.h +++ b/include/asm-x86_64/alternative.h @@ -4,6 +4,7 @@ #ifdef __KERNEL__ #include +#include struct alt_instr { u8 *instr; /* original instruction */ @@ -130,7 +131,7 @@ static inline void alternatives_smp_switch(int smp) {} " .align 8\n" \ " .quad 661b\n" /* label */ \ " .quad 663f\n" /* new instruction */ \ - " .byte 0x66\n" /* X86_FEATURE_UP */ \ + " .byte " __stringify(X86_FEATURE_UP) "\n" \ " .byte 662b-661b\n" /* sourcelen */ \ " .byte 664f-663f\n" /* replacementlen */ \ ".previous\n" \ From ea424055b771a165c9abd3ae109255a3b825c745 Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Wed, 30 Aug 2006 19:37:11 +0200 Subject: [PATCH 429/488] [PATCH] x86: Make backtracer fallback logic more bullet-proof The unwinder fallback logic still had potential for falling through to the legacy stack trace code without printing an indication (at once serving as a separator) of this. Further, the stack pointer retrieval for the fallback should be as restrictive as possible (in order to avoid having the legacy stack tracer try to access invalid memory). The patch tightens that, but this could certainly be further improved. Also making the call_trace command line option now conditional upon CONFIG_STACK_UNWIND (as it's meaningless otherwise). Signed-off-by: Jan Beulich Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds --- arch/i386/kernel/traps.c | 27 ++++++++++++++++----------- arch/x86_64/kernel/traps.c | 28 +++++++++++++++++----------- include/asm-i386/unwind.h | 1 + include/asm-x86_64/unwind.h | 1 + 4 files changed, 35 insertions(+), 22 deletions(-) diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c index 82e0fd02af1c..7e9edafffd8a 100644 --- a/arch/i386/kernel/traps.c +++ b/arch/i386/kernel/traps.c @@ -92,7 +92,11 @@ asmlinkage void spurious_interrupt_bug(void); asmlinkage void machine_check(void); static int kstack_depth_to_print = 24; +#ifdef CONFIG_STACK_UNWIND static int call_trace = 1; +#else +#define call_trace (-1) +#endif ATOMIC_NOTIFIER_HEAD(i386die_chain); int register_die_notifier(struct notifier_block *nb) @@ -187,22 +191,21 @@ static void show_trace_log_lvl(struct task_struct *task, struct pt_regs *regs, if (unwind_init_blocked(&info, task) == 0) unw_ret = show_trace_unwind(&info, log_lvl); } - if (unw_ret > 0 && !arch_unw_user_mode(&info)) { -#ifdef CONFIG_STACK_UNWIND - print_symbol("DWARF2 unwinder stuck at %s\n", - UNW_PC(&info)); - if (call_trace == 1) { - printk("Leftover inexact backtrace:\n"); - if (UNW_SP(&info)) + if (unw_ret > 0) { + if (call_trace == 1 && !arch_unw_user_mode(&info)) { + print_symbol("DWARF2 unwinder stuck at %s\n", + UNW_PC(&info)); + if (UNW_SP(&info) >= PAGE_OFFSET) { + printk("Leftover inexact backtrace:\n"); stack = (void *)UNW_SP(&info); - } else if (call_trace > 1) + } else + printk("Full inexact backtrace again:\n"); + } else if (call_trace >= 1) return; else printk("Full inexact backtrace again:\n"); -#else + } else printk("Inexact backtrace:\n"); -#endif - } } if (task == current) { @@ -1241,6 +1244,7 @@ static int __init kstack_setup(char *s) } __setup("kstack=", kstack_setup); +#ifdef CONFIG_STACK_UNWIND static int __init call_trace_setup(char *s) { if (strcmp(s, "old") == 0) @@ -1254,3 +1258,4 @@ static int __init call_trace_setup(char *s) return 1; } __setup("call_trace=", call_trace_setup); +#endif diff --git a/arch/x86_64/kernel/traps.c b/arch/x86_64/kernel/traps.c index 14052f089814..5e00af54af65 100644 --- a/arch/x86_64/kernel/traps.c +++ b/arch/x86_64/kernel/traps.c @@ -107,7 +107,11 @@ static inline void preempt_conditional_cli(struct pt_regs *regs) } static int kstack_depth_to_print = 12; +#ifdef CONFIG_STACK_UNWIND static int call_trace = 1; +#else +#define call_trace (-1) +#endif #ifdef CONFIG_KALLSYMS # include @@ -274,21 +278,21 @@ void show_trace(struct task_struct *tsk, struct pt_regs *regs, unsigned long * s if (unwind_init_blocked(&info, tsk) == 0) unw_ret = show_trace_unwind(&info, NULL); } - if (unw_ret > 0 && !arch_unw_user_mode(&info)) { -#ifdef CONFIG_STACK_UNWIND - unsigned long rip = info.regs.rip; - print_symbol("DWARF2 unwinder stuck at %s\n", rip); - if (call_trace == 1) { - printk("Leftover inexact backtrace:\n"); - stack = (unsigned long *)info.regs.rsp; - } else if (call_trace > 1) + if (unw_ret > 0) { + if (call_trace == 1 && !arch_unw_user_mode(&info)) { + print_symbol("DWARF2 unwinder stuck at %s\n", + UNW_PC(&info)); + if ((long)UNW_SP(&info) < 0) { + printk("Leftover inexact backtrace:\n"); + stack = (unsigned long *)UNW_SP(&info); + } else + printk("Full inexact backtrace again:\n"); + } else if (call_trace >= 1) return; else printk("Full inexact backtrace again:\n"); -#else + } else printk("Inexact backtrace:\n"); -#endif - } } /* @@ -1120,6 +1124,7 @@ static int __init kstack_setup(char *s) } __setup("kstack=", kstack_setup); +#ifdef CONFIG_STACK_UNWIND static int __init call_trace_setup(char *s) { if (strcmp(s, "old") == 0) @@ -1133,3 +1138,4 @@ static int __init call_trace_setup(char *s) return 1; } __setup("call_trace=", call_trace_setup); +#endif diff --git a/include/asm-i386/unwind.h b/include/asm-i386/unwind.h index 69f0f1df6722..4c1a0b968569 100644 --- a/include/asm-i386/unwind.h +++ b/include/asm-i386/unwind.h @@ -87,6 +87,7 @@ static inline int arch_unw_user_mode(const struct unwind_frame_info *info) #else #define UNW_PC(frame) ((void)(frame), 0) +#define UNW_SP(frame) ((void)(frame), 0) static inline int arch_unw_user_mode(const void *info) { diff --git a/include/asm-x86_64/unwind.h b/include/asm-x86_64/unwind.h index f3e7124effe3..1f6e9bfb569e 100644 --- a/include/asm-x86_64/unwind.h +++ b/include/asm-x86_64/unwind.h @@ -95,6 +95,7 @@ static inline int arch_unw_user_mode(const struct unwind_frame_info *info) #else #define UNW_PC(frame) ((void)(frame), 0) +#define UNW_SP(frame) ((void)(frame), 0) static inline int arch_unw_user_mode(const void *info) { From ceee88223047749ad683d397b19904c3dfb6adeb Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Wed, 30 Aug 2006 19:37:12 +0200 Subject: [PATCH 430/488] [PATCH] x86_64: Recover 1MB of kernel memory Noticed by Jan Beulich. When the kernel was moved from 1MB to 2MB in 2.6.17 the kernel reservation code wasn't adjusted and it still reserved starting with 1MB. This means 1MB always were lost. This patch fixes this by reserving only starting with _text. Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds --- arch/x86_64/kernel/e820.c | 6 +++++- arch/x86_64/kernel/setup.c | 6 ++---- 2 files changed, 7 insertions(+), 5 deletions(-) diff --git a/arch/x86_64/kernel/e820.c b/arch/x86_64/kernel/e820.c index d81e3d6dd241..764bf23c7103 100644 --- a/arch/x86_64/kernel/e820.c +++ b/arch/x86_64/kernel/e820.c @@ -71,7 +71,11 @@ static inline int bad_addr(unsigned long *addrp, unsigned long size) #endif /* kernel code + 640k memory hole (later should not be needed, but be paranoid for now) */ - if (last >= 640*1024 && addr < __pa_symbol(&_end)) { + if (last >= 640*1024 && addr < 1024*1024) { + *addrp = 1024*1024; + return 1; + } + if (last >= __pa_symbol(&_text) && last < __pa_symbol(&_end)) { *addrp = __pa_symbol(&_end); return 1; } diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c index 8a099ff1f8bc..34afad704824 100644 --- a/arch/x86_64/kernel/setup.c +++ b/arch/x86_64/kernel/setup.c @@ -521,8 +521,6 @@ static void discover_ebda(void) void __init setup_arch(char **cmdline_p) { - unsigned long kernel_end; - ROOT_DEV = old_decode_dev(ORIG_ROOT_DEV); screen_info = SCREEN_INFO; edid_info = EDID_INFO; @@ -596,8 +594,8 @@ void __init setup_arch(char **cmdline_p) (table_end - table_start) << PAGE_SHIFT); /* reserve kernel */ - kernel_end = round_up(__pa_symbol(&_end),PAGE_SIZE); - reserve_bootmem_generic(HIGH_MEMORY, kernel_end - HIGH_MEMORY); + reserve_bootmem_generic(__pa_symbol(&_text), + __pa_symbol(&_end) - __pa_symbol(&_text)); /* * reserve physical page 0 - it's a special BIOS page on many boxes, From 841be8ddf92578e5b481ed9f9abb85649fc13238 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Wed, 30 Aug 2006 19:37:13 +0200 Subject: [PATCH 431/488] [PATCH] x86_64: Remove alternative_smp The .fill causes miscompilations with some binutils version. Instead just patch the lock prefix in the lock constructs. That is the majority of the cost and should be good enough. Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds --- include/asm-x86_64/alternative.h | 20 -------------------- include/asm-x86_64/spinlock.h | 11 ++++------- 2 files changed, 4 insertions(+), 27 deletions(-) diff --git a/include/asm-x86_64/alternative.h b/include/asm-x86_64/alternative.h index 709ad3f0d354..a584826cc570 100644 --- a/include/asm-x86_64/alternative.h +++ b/include/asm-x86_64/alternative.h @@ -103,9 +103,6 @@ static inline void alternatives_smp_switch(int smp) {} /* * Alternative inline assembly for SMP. * - * alternative_smp() takes two versions (SMP first, UP second) and is - * for more complex stuff such as spinlocks. - * * The LOCK_PREFIX macro defined here replaces the LOCK and * LOCK_PREFIX macros used everywhere in the source tree. * @@ -125,21 +122,6 @@ static inline void alternatives_smp_switch(int smp) {} */ #ifdef CONFIG_SMP -#define alternative_smp(smpinstr, upinstr, args...) \ - asm volatile ("661:\n\t" smpinstr "\n662:\n" \ - ".section .smp_altinstructions,\"a\"\n" \ - " .align 8\n" \ - " .quad 661b\n" /* label */ \ - " .quad 663f\n" /* new instruction */ \ - " .byte " __stringify(X86_FEATURE_UP) "\n" \ - " .byte 662b-661b\n" /* sourcelen */ \ - " .byte 664f-663f\n" /* replacementlen */ \ - ".previous\n" \ - ".section .smp_altinstr_replacement,\"awx\"\n" \ - "663:\n\t" upinstr "\n" /* replacement */ \ - "664:\n\t.fill 662b-661b,1,0x42\n" /* space for original */ \ - ".previous" : args) - #define LOCK_PREFIX \ ".section .smp_locks,\"a\"\n" \ " .align 8\n" \ @@ -148,8 +130,6 @@ static inline void alternatives_smp_switch(int smp) {} "661:\n\tlock; " #else /* ! CONFIG_SMP */ -#define alternative_smp(smpinstr, upinstr, args...) \ - asm volatile (upinstr : args) #define LOCK_PREFIX "" #endif diff --git a/include/asm-x86_64/spinlock.h b/include/asm-x86_64/spinlock.h index 8d3421996f94..248a79f0eaff 100644 --- a/include/asm-x86_64/spinlock.h +++ b/include/asm-x86_64/spinlock.h @@ -21,7 +21,7 @@ #define __raw_spin_lock_string \ "\n1:\t" \ - "lock ; decl %0\n\t" \ + LOCK_PREFIX " ; decl %0\n\t" \ "js 2f\n" \ LOCK_SECTION_START("") \ "2:\t" \ @@ -40,10 +40,7 @@ static inline void __raw_spin_lock(raw_spinlock_t *lock) { - alternative_smp( - __raw_spin_lock_string, - __raw_spin_lock_string_up, - "=m" (lock->slock) : : "memory"); + asm volatile(__raw_spin_lock_string : "=m" (lock->slock) : : "memory"); } #define __raw_spin_lock_flags(lock, flags) __raw_spin_lock(lock) @@ -125,12 +122,12 @@ static inline int __raw_write_trylock(raw_rwlock_t *lock) static inline void __raw_read_unlock(raw_rwlock_t *rw) { - asm volatile("lock ; incl %0" :"=m" (rw->lock) : : "memory"); + asm volatile(LOCK_PREFIX " ; incl %0" :"=m" (rw->lock) : : "memory"); } static inline void __raw_write_unlock(raw_rwlock_t *rw) { - asm volatile("lock ; addl $" RW_LOCK_BIAS_STR ",%0" + asm volatile(LOCK_PREFIX " ; addl $" RW_LOCK_BIAS_STR ",%0" : "=m" (rw->lock) : : "memory"); } From 8c74932779fc6f61b4c30145863a17125c1a296c Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Wed, 30 Aug 2006 19:37:14 +0200 Subject: [PATCH 432/488] [PATCH] i386: Remove alternative_smp The .fill causes miscompilations with some binutils version. Instead just patch the lock prefix in the lock constructs. That is the majority of the cost and should be good enough. Cc: Gerd Hoffmann Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds --- include/asm-i386/alternative.h | 20 -------------------- include/asm-i386/rwlock.h | 14 ++++++-------- include/asm-i386/spinlock.h | 17 ++++------------- 3 files changed, 10 insertions(+), 41 deletions(-) diff --git a/include/asm-i386/alternative.h b/include/asm-i386/alternative.h index bb3b6317c810..b01a7ec409ce 100644 --- a/include/asm-i386/alternative.h +++ b/include/asm-i386/alternative.h @@ -88,9 +88,6 @@ static inline void alternatives_smp_switch(int smp) {} /* * Alternative inline assembly for SMP. * - * alternative_smp() takes two versions (SMP first, UP second) and is - * for more complex stuff such as spinlocks. - * * The LOCK_PREFIX macro defined here replaces the LOCK and * LOCK_PREFIX macros used everywhere in the source tree. * @@ -110,21 +107,6 @@ static inline void alternatives_smp_switch(int smp) {} */ #ifdef CONFIG_SMP -#define alternative_smp(smpinstr, upinstr, args...) \ - asm volatile ("661:\n\t" smpinstr "\n662:\n" \ - ".section .smp_altinstructions,\"a\"\n" \ - " .align 4\n" \ - " .long 661b\n" /* label */ \ - " .long 663f\n" /* new instruction */ \ - " .byte " __stringify(X86_FEATURE_UP) "\n" \ - " .byte 662b-661b\n" /* sourcelen */ \ - " .byte 664f-663f\n" /* replacementlen */ \ - ".previous\n" \ - ".section .smp_altinstr_replacement,\"awx\"\n" \ - "663:\n\t" upinstr "\n" /* replacement */ \ - "664:\n\t.fill 662b-661b,1,0x42\n" /* space for original */ \ - ".previous" : args) - #define LOCK_PREFIX \ ".section .smp_locks,\"a\"\n" \ " .align 4\n" \ @@ -133,8 +115,6 @@ static inline void alternatives_smp_switch(int smp) {} "661:\n\tlock; " #else /* ! CONFIG_SMP */ -#define alternative_smp(smpinstr, upinstr, args...) \ - asm volatile (upinstr : args) #define LOCK_PREFIX "" #endif diff --git a/include/asm-i386/rwlock.h b/include/asm-i386/rwlock.h index 96b0bef2ea56..3ac1ba98b1bc 100644 --- a/include/asm-i386/rwlock.h +++ b/include/asm-i386/rwlock.h @@ -21,22 +21,20 @@ #define RW_LOCK_BIAS_STR "0x01000000" #define __build_read_lock_ptr(rw, helper) \ - alternative_smp("lock; subl $1,(%0)\n\t" \ + asm volatile(LOCK_PREFIX " ; subl $1,(%0)\n\t" \ "jns 1f\n" \ "call " helper "\n\t" \ - "1:\n", \ - "subl $1,(%0)\n\t", \ + "1:\n" \ :"a" (rw) : "memory") #define __build_read_lock_const(rw, helper) \ - alternative_smp("lock; subl $1,%0\n\t" \ + asm volatile(LOCK_PREFIX " ; subl $1,%0\n\t" \ "jns 1f\n" \ "pushl %%eax\n\t" \ "leal %0,%%eax\n\t" \ "call " helper "\n\t" \ "popl %%eax\n\t" \ - "1:\n", \ - "subl $1,%0\n\t", \ + "1:\n" : \ "+m" (*(volatile int *)rw) : : "memory") #define __build_read_lock(rw, helper) do { \ @@ -47,7 +45,7 @@ } while (0) #define __build_write_lock_ptr(rw, helper) \ - alternative_smp("lock; subl $" RW_LOCK_BIAS_STR ",(%0)\n\t" \ + asm volatile(LOCK_PREFIX " ; subl $" RW_LOCK_BIAS_STR ",(%0)\n\t" \ "jz 1f\n" \ "call " helper "\n\t" \ "1:\n", \ @@ -55,7 +53,7 @@ :"a" (rw) : "memory") #define __build_write_lock_const(rw, helper) \ - alternative_smp("lock; subl $" RW_LOCK_BIAS_STR ",%0\n\t" \ + asm volatile(LOCK_PREFIX " ; subl $" RW_LOCK_BIAS_STR ",%0\n\t" \ "jz 1f\n" \ "pushl %%eax\n\t" \ "leal %0,%%eax\n\t" \ diff --git a/include/asm-i386/spinlock.h b/include/asm-i386/spinlock.h index d816c62a7a1d..d1020363c41a 100644 --- a/include/asm-i386/spinlock.h +++ b/include/asm-i386/spinlock.h @@ -22,7 +22,7 @@ #define __raw_spin_lock_string \ "\n1:\t" \ - "lock ; decb %0\n\t" \ + LOCK_PREFIX " ; decb %0\n\t" \ "jns 3f\n" \ "2:\t" \ "rep;nop\n\t" \ @@ -38,7 +38,7 @@ */ #define __raw_spin_lock_string_flags \ "\n1:\t" \ - "lock ; decb %0\n\t" \ + LOCK_PREFIX " ; decb %0\n\t" \ "jns 5f\n" \ "2:\t" \ "testl $0x200, %1\n\t" \ @@ -57,15 +57,9 @@ "jmp 4b\n" \ "5:\n\t" -#define __raw_spin_lock_string_up \ - "\n\tdecb %0" - static inline void __raw_spin_lock(raw_spinlock_t *lock) { - alternative_smp( - __raw_spin_lock_string, - __raw_spin_lock_string_up, - "+m" (lock->slock) : : "memory"); + asm(__raw_spin_lock_string : "+m" (lock->slock) : : "memory"); } /* @@ -76,10 +70,7 @@ static inline void __raw_spin_lock(raw_spinlock_t *lock) #ifndef CONFIG_PROVE_LOCKING static inline void __raw_spin_lock_flags(raw_spinlock_t *lock, unsigned long flags) { - alternative_smp( - __raw_spin_lock_string_flags, - __raw_spin_lock_string_up, - "+m" (lock->slock) : "r" (flags) : "memory"); + asm(__raw_spin_lock_string_flags : "+m" (lock->slock) : "r" (flags) : "memory"); } #endif From 40dd2d20f220eda1cd0da8ea3f0f9db8971ba237 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Wed, 30 Aug 2006 19:37:15 +0200 Subject: [PATCH 433/488] [PATCH] x86: Disable MMCONFIG on Intel SDV using DMI blacklist As a replacement for the earlier removal of the e820 MCFG check we blacklist the Intel SDV with the original BIOS bug that motivated that check. On those machines don't use MMCONFIG. This also adds a new pci=mmconf parameter to override the blacklist. Cc: Greg KH Cc: Arjan van de Ven Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds --- Documentation/kernel-parameters.txt | 2 ++ arch/i386/pci/common.c | 5 +++++ arch/i386/pci/mmconfig.c | 25 ++++++++++++++++++++++++- arch/i386/pci/pci.h | 3 ++- arch/x86_64/pci/mmconfig.c | 25 ++++++++++++++++++++++++- 5 files changed, 57 insertions(+), 3 deletions(-) diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index b50595a0550f..7947cede8712 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -1183,6 +1183,8 @@ running once the system is up. Mechanism 2. nommconf [IA-32,X86_64] Disable use of MMCONFIG for PCI Configuration + mmconf [IA-32,X86_64] Force MMCONFIG. This is useful + to override the builtin blacklist. nomsi [MSI] If the PCI_MSI kernel config parameter is enabled, this kernel boot option can be used to disable the use of MSI interrupts system-wide. diff --git a/arch/i386/pci/common.c b/arch/i386/pci/common.c index 0a362e3aeac5..1220dd828ce3 100644 --- a/arch/i386/pci/common.c +++ b/arch/i386/pci/common.c @@ -237,6 +237,11 @@ char * __devinit pcibios_setup(char *str) pci_probe &= ~PCI_PROBE_MMCONF; return NULL; } + /* override DMI blacklist */ + else if (!strcmp(str, "mmconf")) { + pci_probe |= PCI_PROBE_MMCONF_FORCE; + return NULL; + } #endif else if (!strcmp(str, "noacpi")) { acpi_noirq_set(); diff --git a/arch/i386/pci/mmconfig.c b/arch/i386/pci/mmconfig.c index 5effb2e663ed..ef5a2faa7d82 100644 --- a/arch/i386/pci/mmconfig.c +++ b/arch/i386/pci/mmconfig.c @@ -12,6 +12,7 @@ #include #include #include +#include #include #include "pci.h" @@ -187,9 +188,31 @@ static __init void unreachable_devices(void) } } +static int disable_mcfg(struct dmi_system_id *d) +{ + printk("PCI: %s detected. Disabling MCFG.\n", d->ident); + pci_probe &= ~PCI_PROBE_MMCONF; + return 0; +} + +static struct dmi_system_id __initdata dmi_bad_mcfg[] = { + /* Has broken MCFG table that makes the system hang when used */ + { + .callback = disable_mcfg, + .ident = "Intel D3C5105 SDV", + .matches = { + DMI_MATCH(DMI_BIOS_VENDOR, "Intel"), + DMI_MATCH(DMI_BOARD_NAME, "D26928"), + }, + }, + {} +}; + void __init pci_mmcfg_init(void) { - if ((pci_probe & PCI_PROBE_MMCONF) == 0) + dmi_check_system(dmi_bad_mcfg); + + if ((pci_probe & (PCI_PROBE_MMCONF_FORCE|PCI_PROBE_MMCONF)) == 0) return; acpi_table_parse(ACPI_MCFG, acpi_parse_mcfg); diff --git a/arch/i386/pci/pci.h b/arch/i386/pci/pci.h index bf4e79335388..49a849b3a241 100644 --- a/arch/i386/pci/pci.h +++ b/arch/i386/pci/pci.h @@ -16,7 +16,8 @@ #define PCI_PROBE_CONF1 0x0002 #define PCI_PROBE_CONF2 0x0004 #define PCI_PROBE_MMCONF 0x0008 -#define PCI_PROBE_MASK 0x000f +#define PCI_PROBE_MMCONF_FORCE 0x0010 +#define PCI_PROBE_MASK 0x00ff #define PCI_NO_SORT 0x0100 #define PCI_BIOS_SORT 0x0200 diff --git a/arch/x86_64/pci/mmconfig.c b/arch/x86_64/pci/mmconfig.c index 8a4a0f9263ce..2d48a7941d48 100644 --- a/arch/x86_64/pci/mmconfig.c +++ b/arch/x86_64/pci/mmconfig.c @@ -9,6 +9,7 @@ #include #include #include +#include #include #include "pci.h" @@ -164,11 +165,33 @@ static __init void unreachable_devices(void) } } +static int disable_mcfg(struct dmi_system_id *d) +{ + printk("PCI: %s detected. Disabling MCFG.\n", d->ident); + pci_probe &= ~PCI_PROBE_MMCONF; + return 0; +} + +static struct dmi_system_id __initdata dmi_bad_mcfg[] = { + /* Has broken MCFG table that makes the system hang when used */ + { + .callback = disable_mcfg, + .ident = "Intel D3C5105 SDV", + .matches = { + DMI_MATCH(DMI_BIOS_VENDOR, "Intel"), + DMI_MATCH(DMI_BOARD_NAME, "D26928"), + }, + }, + {} +}; + void __init pci_mmcfg_init(void) { int i; - if ((pci_probe & PCI_PROBE_MMCONF) == 0) + dmi_check_system(dmi_bad_mcfg); + + if ((pci_probe & (PCI_PROBE_MMCONF|PCI_PROBE_MMCONF_FORCE)) == 0) return; acpi_table_parse(ACPI_MCFG, acpi_parse_mcfg); From bbad0b669d33f3023cfe70ec79ba5ea487afca59 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Wed, 30 Aug 2006 19:37:16 +0200 Subject: [PATCH 434/488] [PATCH] x86_64: Remove __KERNEL__ ifdef around _syscall*() After all their only point is having them in user space. On x86-64 they don't even work in kernel space. Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds --- include/asm-x86_64/unistd.h | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/include/asm-x86_64/unistd.h b/include/asm-x86_64/unistd.h index 94387c915e53..2d89d309a2a8 100644 --- a/include/asm-x86_64/unistd.h +++ b/include/asm-x86_64/unistd.h @@ -620,8 +620,6 @@ __SYSCALL(__NR_vmsplice, sys_vmsplice) #define __NR_move_pages 279 __SYSCALL(__NR_move_pages, sys_move_pages) -#ifdef __KERNEL__ - #define __NR_syscall_max __NR_move_pages #ifndef __NO_STUBS @@ -746,6 +744,8 @@ __syscall_return(type,__res); \ #else /* __KERNEL_SYSCALLS__ */ +#ifdef __KERNEL__ + #include #include @@ -838,9 +838,9 @@ asmlinkage long sys_rt_sigaction(int sig, struct sigaction __user *oact, size_t sigsetsize); -#endif /* __ASSEMBLY__ */ +#endif -#endif /* __NO_STUBS */ +#endif /* * "Conditional" syscalls @@ -850,5 +850,6 @@ asmlinkage long sys_rt_sigaction(int sig, */ #define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall") -#endif /* __KERNEL__ */ +#endif + #endif From 266f0566761cf88906d634727b3d9fc2556f5cbd Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Wed, 30 Aug 2006 19:37:17 +0200 Subject: [PATCH 435/488] [PATCH] i386: Fix stack switching in do_IRQ There was a bogus hunk from the genirq merge that essentially broke stack switching for hard interrupts. Remove it since it isn't needed. Cc: Thomas Gleixner Cc: Ingo Molnar Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds --- arch/i386/kernel/irq.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/arch/i386/kernel/irq.c b/arch/i386/kernel/irq.c index 6cb529f60dcc..5fe547cd8f9f 100644 --- a/arch/i386/kernel/irq.c +++ b/arch/i386/kernel/irq.c @@ -82,10 +82,6 @@ fastcall unsigned int do_IRQ(struct pt_regs *regs) } #endif - if (!irq_desc[irq].handle_irq) { - __do_IRQ(irq, regs); - goto out_exit; - } #ifdef CONFIG_4KSTACKS curctx = (union irq_ctx *) current_thread_info(); @@ -125,7 +121,6 @@ fastcall unsigned int do_IRQ(struct pt_regs *regs) #endif __do_IRQ(irq, regs); -out_exit: irq_exit(); return 1; From 386dcafaacd212ef4a8aeed67a7db3ffbb44c7b2 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Wed, 30 Aug 2006 19:37:18 +0200 Subject: [PATCH 436/488] [PATCH] i386: Remove __KERNEL__ ifdef around _syscall*() After all their only point is having them in user space. Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds --- include/asm-i386/unistd.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/asm-i386/unistd.h b/include/asm-i386/unistd.h index fc1c8ddae149..d983b74e4d9f 100644 --- a/include/asm-i386/unistd.h +++ b/include/asm-i386/unistd.h @@ -324,8 +324,6 @@ #define __NR_vmsplice 316 #define __NR_move_pages 317 -#ifdef __KERNEL__ - #define NR_syscalls 318 /* @@ -425,6 +423,8 @@ __asm__ volatile ("push %%ebp ; push %%ebx ; movl 4(%2),%%ebp ; " \ __syscall_return(type,__res); \ } +#ifdef __KERNEL__ + #define __ARCH_WANT_IPC_PARSE_VERSION #define __ARCH_WANT_OLD_READDIR #define __ARCH_WANT_OLD_STAT From 01ebb77b31149d847726a8847ad0d37631d7f049 Mon Sep 17 00:00:00 2001 From: Keith Owens Date: Wed, 30 Aug 2006 19:37:19 +0200 Subject: [PATCH 437/488] [PATCH] x86_64: Save original IST values for checking stack addresses The values in init_tss.ist[] can change when an IST event occurs. Save the original IST values for checking stack addresses when debugging or doing stack traces. Signed-off-by: Keith Owens Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds --- arch/x86_64/kernel/init_task.c | 5 +++++ arch/x86_64/kernel/setup64.c | 3 ++- arch/x86_64/kernel/traps.c | 2 +- include/asm-x86_64/processor.h | 6 ++++++ 4 files changed, 14 insertions(+), 2 deletions(-) diff --git a/arch/x86_64/kernel/init_task.c b/arch/x86_64/kernel/init_task.c index ce31d904d601..3dc5854ba21e 100644 --- a/arch/x86_64/kernel/init_task.c +++ b/arch/x86_64/kernel/init_task.c @@ -46,4 +46,9 @@ EXPORT_SYMBOL(init_task); */ DEFINE_PER_CPU(struct tss_struct, init_tss) ____cacheline_internodealigned_in_smp = INIT_TSS; +/* Copies of the original ist values from the tss are only accessed during + * debugging, no special alignment required. + */ +DEFINE_PER_CPU(struct orig_ist, orig_ist); + #define ALIGN_TO_4K __attribute__((section(".data.init_task"))) diff --git a/arch/x86_64/kernel/setup64.c b/arch/x86_64/kernel/setup64.c index 6fe58a634b5f..417de564456e 100644 --- a/arch/x86_64/kernel/setup64.c +++ b/arch/x86_64/kernel/setup64.c @@ -189,6 +189,7 @@ void __cpuinit cpu_init (void) { int cpu = stack_smp_processor_id(); struct tss_struct *t = &per_cpu(init_tss, cpu); + struct orig_ist *orig_ist = &per_cpu(orig_ist, cpu); unsigned long v; char *estacks = NULL; struct task_struct *me; @@ -256,7 +257,7 @@ void __cpuinit cpu_init (void) estacks += EXCEPTION_STKSZ; break; } - t->ist[v] = (unsigned long)estacks; + orig_ist->ist[v] = t->ist[v] = (unsigned long)estacks; } t->io_bitmap_base = offsetof(struct tss_struct, io_bitmap); diff --git a/arch/x86_64/kernel/traps.c b/arch/x86_64/kernel/traps.c index 5e00af54af65..b1249774d1e8 100644 --- a/arch/x86_64/kernel/traps.c +++ b/arch/x86_64/kernel/traps.c @@ -178,7 +178,7 @@ static unsigned long *in_exception_stack(unsigned cpu, unsigned long stack, break; #endif default: - end = per_cpu(init_tss, cpu).ist[k]; + end = per_cpu(orig_ist, cpu).ist[k]; break; } /* diff --git a/include/asm-x86_64/processor.h b/include/asm-x86_64/processor.h index 3b3c1217fe61..de9c3147ee4c 100644 --- a/include/asm-x86_64/processor.h +++ b/include/asm-x86_64/processor.h @@ -232,8 +232,14 @@ struct tss_struct { unsigned long io_bitmap[IO_BITMAP_LONGS + 1]; } __attribute__((packed)) ____cacheline_aligned; + extern struct cpuinfo_x86 boot_cpu_data; DECLARE_PER_CPU(struct tss_struct,init_tss); +/* Save the original ist values for checking stack pointers during debugging */ +struct orig_ist { + unsigned long ist[7]; +}; +DECLARE_PER_CPU(struct orig_ist, orig_ist); #ifdef CONFIG_X86_VSMP #define ARCH_MIN_TASKALIGN (1 << INTERNODE_CACHE_SHIFT) From ec0063b40a2291e095faf07fbeb94be92e525c54 Mon Sep 17 00:00:00 2001 From: Suleiman Souhlal Date: Wed, 30 Aug 2006 19:37:20 +0200 Subject: [PATCH 438/488] [PATCH] x86_64: Don't write out segments from vsyscall32 DSO if it is not mapped It's possible to get an invalid page fault in kernel mode when we try to write out segments from vsyscall32 when dumping core for a 32bit process if the vsyscall32 DSO is not mapped in its address space (which can happen if, for example, ulimit -v 100 is run). Signed-off-by: Suleiman Souhlal Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds --- arch/x86_64/ia32/ia32_binfmt.c | 57 ++++++++++++++++++---------------- 1 file changed, 31 insertions(+), 26 deletions(-) diff --git a/arch/x86_64/ia32/ia32_binfmt.c b/arch/x86_64/ia32/ia32_binfmt.c index a9dc0f3b5b51..2fd5a67fd435 100644 --- a/arch/x86_64/ia32/ia32_binfmt.c +++ b/arch/x86_64/ia32/ia32_binfmt.c @@ -73,39 +73,44 @@ typedef elf_greg_t elf_gregset_t[ELF_NGREG]; * Dumping its extra ELF program headers includes all the other information * a debugger needs to easily find how the vsyscall DSO was being used. */ -#define ELF_CORE_EXTRA_PHDRS (VSYSCALL32_EHDR->e_phnum) +#define ELF_CORE_EXTRA_PHDRS (find_vma(current->mm, VSYSCALL32_BASE) ? \ + (VSYSCALL32_EHDR->e_phnum) : 0) #define ELF_CORE_WRITE_EXTRA_PHDRS \ do { \ - const struct elf32_phdr *const vsyscall_phdrs = \ - (const struct elf32_phdr *) (VSYSCALL32_BASE \ - + VSYSCALL32_EHDR->e_phoff); \ - int i; \ - Elf32_Off ofs = 0; \ - for (i = 0; i < VSYSCALL32_EHDR->e_phnum; ++i) { \ - struct elf32_phdr phdr = vsyscall_phdrs[i]; \ - if (phdr.p_type == PT_LOAD) { \ - BUG_ON(ofs != 0); \ - ofs = phdr.p_offset = offset; \ - phdr.p_memsz = PAGE_ALIGN(phdr.p_memsz); \ - phdr.p_filesz = phdr.p_memsz; \ - offset += phdr.p_filesz; \ + if (find_vma(current->mm, VSYSCALL32_BASE)) { \ + const struct elf32_phdr *const vsyscall_phdrs = \ + (const struct elf32_phdr *) (VSYSCALL32_BASE \ + + VSYSCALL32_EHDR->e_phoff);\ + int i; \ + Elf32_Off ofs = 0; \ + for (i = 0; i < VSYSCALL32_EHDR->e_phnum; ++i) { \ + struct elf32_phdr phdr = vsyscall_phdrs[i]; \ + if (phdr.p_type == PT_LOAD) { \ + BUG_ON(ofs != 0); \ + ofs = phdr.p_offset = offset; \ + phdr.p_memsz = PAGE_ALIGN(phdr.p_memsz); \ + phdr.p_filesz = phdr.p_memsz; \ + offset += phdr.p_filesz; \ + } \ + else \ + phdr.p_offset += ofs; \ + phdr.p_paddr = 0; /* match other core phdrs */ \ + DUMP_WRITE(&phdr, sizeof(phdr)); \ } \ - else \ - phdr.p_offset += ofs; \ - phdr.p_paddr = 0; /* match other core phdrs */ \ - DUMP_WRITE(&phdr, sizeof(phdr)); \ } \ } while (0) #define ELF_CORE_WRITE_EXTRA_DATA \ do { \ - const struct elf32_phdr *const vsyscall_phdrs = \ - (const struct elf32_phdr *) (VSYSCALL32_BASE \ - + VSYSCALL32_EHDR->e_phoff); \ - int i; \ - for (i = 0; i < VSYSCALL32_EHDR->e_phnum; ++i) { \ - if (vsyscall_phdrs[i].p_type == PT_LOAD) \ - DUMP_WRITE((void *) (u64) vsyscall_phdrs[i].p_vaddr, \ - PAGE_ALIGN(vsyscall_phdrs[i].p_memsz)); \ + if (find_vma(current->mm, VSYSCALL32_BASE)) { \ + const struct elf32_phdr *const vsyscall_phdrs = \ + (const struct elf32_phdr *) (VSYSCALL32_BASE \ + + VSYSCALL32_EHDR->e_phoff); \ + int i; \ + for (i = 0; i < VSYSCALL32_EHDR->e_phnum; ++i) { \ + if (vsyscall_phdrs[i].p_type == PT_LOAD) \ + DUMP_WRITE((void *) (u64) vsyscall_phdrs[i].p_vaddr,\ + PAGE_ALIGN(vsyscall_phdrs[i].p_memsz)); \ + } \ } \ } while (0) From a7dec1e0dbb9e8e032b56a62d07ab6ac009109d3 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Wed, 30 Aug 2006 19:14:25 +0100 Subject: [PATCH 439/488] [PATCH] Missing PCI id update for VIA IDE The following change from -mm is important to 2.6.18 (actually to 2.6.17 but its too late for that). This was contributed over three months ago by VIA to Bartlomiej and nothing happened. As a result the new chipset is now out and Linux won't run on it. By the time 2.6.18 is finalised this will be the defacto standard VIA chipset so support would be a good plan. Tested in -mm for a while, its essentially a PCI ident update but for the bridge chip because VIA do things in weird ways. Signed-off-by: Linus Torvalds --- drivers/ide/pci/via82cxxx.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/ide/pci/via82cxxx.c b/drivers/ide/pci/via82cxxx.c index afdaee3c15c9..9b7589e8e93e 100644 --- a/drivers/ide/pci/via82cxxx.c +++ b/drivers/ide/pci/via82cxxx.c @@ -6,7 +6,7 @@ * * vt82c576, vt82c586, vt82c586a, vt82c586b, vt82c596a, vt82c596b, * vt82c686, vt82c686a, vt82c686b, vt8231, vt8233, vt8233c, vt8233a, - * vt8235, vt8237 + * vt8235, vt8237, vt8237a * * Copyright (c) 2000-2002 Vojtech Pavlik * @@ -81,6 +81,7 @@ static struct via_isa_bridge { { "vt6410", PCI_DEVICE_ID_VIA_6410, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST }, { "vt8251", PCI_DEVICE_ID_VIA_8251, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST }, { "vt8237", PCI_DEVICE_ID_VIA_8237, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST }, + { "vt8237a", PCI_DEVICE_ID_VIA_8237A, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST }, { "vt8235", PCI_DEVICE_ID_VIA_8235, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST }, { "vt8233a", PCI_DEVICE_ID_VIA_8233A, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST }, { "vt8233c", PCI_DEVICE_ID_VIA_8233C_0, 0x00, 0x2f, VIA_UDMA_100 }, From 18f2905fcec3e06deafd25a02e37eabaaaaef744 Mon Sep 17 00:00:00 2001 From: Roland Scheidegger Date: Wed, 30 Aug 2006 23:17:55 +0100 Subject: [PATCH 440/488] [PATCH] drm: radeon flush TCL VAP for vertex program enable/disable The radeon requires a VAP state flush when enabling/disabling vertex programs on the r200 cards. Signed-off-by: Dave Airlie Signed-off-by: Linus Torvalds --- drivers/char/drm/radeon_state.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/char/drm/radeon_state.c b/drivers/char/drm/radeon_state.c index 5bb2234a9094..39a7f685e3fd 100644 --- a/drivers/char/drm/radeon_state.c +++ b/drivers/char/drm/radeon_state.c @@ -175,6 +175,14 @@ static __inline__ int radeon_check_and_fixup_packets(drm_radeon_private_t * } break; + case R200_EMIT_VAP_CTL:{ + RING_LOCALS; + BEGIN_RING(2); + OUT_RING_REG(RADEON_SE_TCL_STATE_FLUSH, 0); + ADVANCE_RING(); + } + break; + case RADEON_EMIT_RB3D_COLORPITCH: case RADEON_EMIT_RE_LINE_PATTERN: case RADEON_EMIT_SE_LINE_WIDTH: @@ -202,7 +210,6 @@ static __inline__ int radeon_check_and_fixup_packets(drm_radeon_private_t * case R200_EMIT_TCL_LIGHT_MODEL_CTL_0: case R200_EMIT_TFACTOR_0: case R200_EMIT_VTX_FMT_0: - case R200_EMIT_VAP_CTL: case R200_EMIT_MATRIX_SELECT_0: case R200_EMIT_TEX_PROC_CTL_2: case R200_EMIT_TCL_UCP_VERT_BLEND_CTL: From d0027bf09f09d95a23b8f476ba8cea28f2576781 Mon Sep 17 00:00:00 2001 From: Paul Mackerras Date: Thu, 31 Aug 2006 13:22:58 +1000 Subject: [PATCH 441/488] [POWERPC] Fix return value from memcpy As pointed out by Herbert Xu , our memcpy implementation didn't return the destination pointer as its return value, and there is code in the kernel that expects that. This fixes it. Signed-off-by: Paul Mackerras --- arch/powerpc/lib/memcpy_64.S | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/arch/powerpc/lib/memcpy_64.S b/arch/powerpc/lib/memcpy_64.S index fd66acfd3e3e..7173ba98f427 100644 --- a/arch/powerpc/lib/memcpy_64.S +++ b/arch/powerpc/lib/memcpy_64.S @@ -11,6 +11,7 @@ .align 7 _GLOBAL(memcpy) + std r3,48(r1) /* save destination pointer for return value */ mtcrf 0x01,r5 cmpldi cr1,r5,16 neg r6,r3 # LS 3 bits = # bytes to 8-byte dest bdry @@ -38,7 +39,7 @@ _GLOBAL(memcpy) stdu r9,16(r3) bdnz 1b 3: std r8,8(r3) - beqlr + beq 3f addi r3,r3,16 ld r9,8(r4) .Ldo_tail: @@ -53,7 +54,8 @@ _GLOBAL(memcpy) 2: bf cr7*4+3,3f rotldi r9,r9,8 stb r9,0(r3) -3: blr +3: ld r3,48(r1) /* return dest pointer */ + blr .Lsrc_unaligned: srdi r6,r5,3 @@ -115,7 +117,7 @@ _GLOBAL(memcpy) 5: srd r12,r9,r11 or r12,r8,r12 std r12,24(r3) - beqlr + beq 4f cmpwi cr1,r5,8 addi r3,r3,32 sld r9,r9,r10 @@ -167,4 +169,5 @@ _GLOBAL(memcpy) 3: bf cr7*4+3,4f lbz r0,0(r4) stb r0,0(r3) -4: blr +4: ld r3,48(r1) /* return dest pointer */ + blr From 98a3c781057fa43494e7e8b39d639e93fca0ecbf Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Thu, 31 Aug 2006 14:04:34 +1000 Subject: [PATCH 442/488] [PATCH] fbdev: Fix crashes in various fbdev's blank routines The backlight changes that went in had a bug where they could cause the kernel to access an unitialized pointer when blanking if there is no backlight control on a machine. The bug affects atyfb, aty128fb, nvidiafb and rivafb. radeonfb seems to be ok. This fixes it. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Linus Torvalds --- drivers/video/aty/aty128fb.c | 5 ++++- drivers/video/aty/atyfb_base.c | 5 ++++- drivers/video/nvidia/nv_backlight.c | 4 +++- drivers/video/riva/fbdev.c | 5 ++++- 4 files changed, 15 insertions(+), 4 deletions(-) diff --git a/drivers/video/aty/aty128fb.c b/drivers/video/aty/aty128fb.c index 3e827e04a2aa..106d428b72c9 100644 --- a/drivers/video/aty/aty128fb.c +++ b/drivers/video/aty/aty128fb.c @@ -1800,6 +1800,9 @@ static struct backlight_properties aty128_bl_data = { static void aty128_bl_set_power(struct fb_info *info, int power) { + if (info->bl_dev == NULL) + return; + mutex_lock(&info->bl_mutex); up(&info->bl_dev->sem); info->bl_dev->props->power = power; @@ -1828,7 +1831,7 @@ static void aty128_bl_init(struct aty128fb_par *par) bd = backlight_device_register(name, par, &aty128_bl_data); if (IS_ERR(bd)) { info->bl_dev = NULL; - printk("aty128: Backlight registration failed\n"); + printk(KERN_WARNING "aty128: Backlight registration failed\n"); goto error; } diff --git a/drivers/video/aty/atyfb_base.c b/drivers/video/aty/atyfb_base.c index 053ff63365b7..510e4ea296ed 100644 --- a/drivers/video/aty/atyfb_base.c +++ b/drivers/video/aty/atyfb_base.c @@ -2199,6 +2199,9 @@ static struct backlight_properties aty_bl_data = { static void aty_bl_set_power(struct fb_info *info, int power) { + if (info->bl_dev == NULL) + return; + mutex_lock(&info->bl_mutex); up(&info->bl_dev->sem); info->bl_dev->props->power = power; @@ -2223,7 +2226,7 @@ static void aty_bl_init(struct atyfb_par *par) bd = backlight_device_register(name, par, &aty_bl_data); if (IS_ERR(bd)) { info->bl_dev = NULL; - printk("aty: Backlight registration failed\n"); + printk(KERN_WARNING "aty: Backlight registration failed\n"); goto error; } diff --git a/drivers/video/nvidia/nv_backlight.c b/drivers/video/nvidia/nv_backlight.c index b45f577094ac..14c37c42191c 100644 --- a/drivers/video/nvidia/nv_backlight.c +++ b/drivers/video/nvidia/nv_backlight.c @@ -112,6 +112,8 @@ static struct backlight_properties nvidia_bl_data = { void nvidia_bl_set_power(struct fb_info *info, int power) { + if (info->bl_dev == NULL) + return; mutex_lock(&info->bl_mutex); up(&info->bl_dev->sem); info->bl_dev->props->power = power; @@ -140,7 +142,7 @@ void nvidia_bl_init(struct nvidia_par *par) bd = backlight_device_register(name, par, &nvidia_bl_data); if (IS_ERR(bd)) { info->bl_dev = NULL; - printk("nvidia: Backlight registration failed\n"); + printk(KERN_WARNING "nvidia: Backlight registration failed\n"); goto error; } diff --git a/drivers/video/riva/fbdev.c b/drivers/video/riva/fbdev.c index 76fc9d355eb7..90363943bd57 100644 --- a/drivers/video/riva/fbdev.c +++ b/drivers/video/riva/fbdev.c @@ -354,6 +354,9 @@ static struct backlight_properties riva_bl_data = { static void riva_bl_set_power(struct fb_info *info, int power) { + if (info->bl_dev == NULL) + return; + mutex_lock(&info->bl_mutex); up(&info->bl_dev->sem); info->bl_dev->props->power = power; @@ -382,7 +385,7 @@ static void riva_bl_init(struct riva_par *par) bd = backlight_device_register(name, par, &riva_bl_data); if (IS_ERR(bd)) { info->bl_dev = NULL; - printk("riva: Backlight registration failed\n"); + printk(KERN_WARNING "riva: Backlight registration failed\n"); goto error; } From eb36c2884a1a2190791afe65fd833b2d3cd4b999 Mon Sep 17 00:00:00 2001 From: Paul Mackerras Date: Wed, 30 Aug 2006 16:13:16 +1000 Subject: [PATCH 443/488] [PATCH] ppc32: fix last_jiffy time comparison This fixes a hang on ppc32. The problem was that I was comparing a 32-bit quantity with a 64-bit quantity, and consequently time wasn't advancing. This makes us use a 64-bit quantity on all platforms, which ends up simplifying the code since we can now get rid of the tb_last_stamp variable (which actually fixes another bug that Ben H and I noticed while going carefully through the code). This works fine on my G4 tibook. Let me know how it goes on your machines. Acked-by: Olaf Hering Acked-by: Mikael Pettersson Signed-off-by: Linus Torvalds --- arch/powerpc/kernel/time.c | 25 ++++++++----------------- include/asm-powerpc/time.h | 4 ---- 2 files changed, 8 insertions(+), 21 deletions(-) diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c index 18e59e43d2b3..a124499e65d9 100644 --- a/arch/powerpc/kernel/time.c +++ b/arch/powerpc/kernel/time.c @@ -125,15 +125,8 @@ static long timezone_offset; unsigned long ppc_proc_freq; unsigned long ppc_tb_freq; -u64 tb_last_jiffy __cacheline_aligned_in_smp; -unsigned long tb_last_stamp; - -/* - * Note that on ppc32 this only stores the bottom 32 bits of - * the timebase value, but that's enough to tell when a jiffy - * has passed. - */ -DEFINE_PER_CPU(unsigned long, last_jiffy); +static u64 tb_last_jiffy __cacheline_aligned_in_smp; +static DEFINE_PER_CPU(u64, last_jiffy); #ifdef CONFIG_VIRT_CPU_ACCOUNTING /* @@ -458,7 +451,7 @@ void do_gettimeofday(struct timeval *tv) do { seq = read_seqbegin_irqsave(&xtime_lock, flags); sec = xtime.tv_sec; - nsec = xtime.tv_nsec + tb_ticks_since(tb_last_stamp); + nsec = xtime.tv_nsec + tb_ticks_since(tb_last_jiffy); } while (read_seqretry_irqrestore(&xtime_lock, seq, flags)); usec = nsec / 1000; while (usec >= 1000000) { @@ -700,7 +693,6 @@ void timer_interrupt(struct pt_regs * regs) tb_next_jiffy = tb_last_jiffy + tb_ticks_per_jiffy; if (per_cpu(last_jiffy, cpu) >= tb_next_jiffy) { tb_last_jiffy = tb_next_jiffy; - tb_last_stamp = per_cpu(last_jiffy, cpu); do_timer(regs); timer_recalc_offset(tb_last_jiffy); timer_check_rtc(); @@ -749,7 +741,7 @@ void __init smp_space_timers(unsigned int max_cpus) int i; unsigned long half = tb_ticks_per_jiffy / 2; unsigned long offset = tb_ticks_per_jiffy / max_cpus; - unsigned long previous_tb = per_cpu(last_jiffy, boot_cpuid); + u64 previous_tb = per_cpu(last_jiffy, boot_cpuid); /* make sure tb > per_cpu(last_jiffy, cpu) for all cpus always */ previous_tb -= tb_ticks_per_jiffy; @@ -830,7 +822,7 @@ int do_settimeofday(struct timespec *tv) * and therefore the (jiffies - wall_jiffies) computation * has been removed. */ - tb_delta = tb_ticks_since(tb_last_stamp); + tb_delta = tb_ticks_since(tb_last_jiffy); tb_delta = mulhdu(tb_delta, do_gtod.varp->tb_to_xs); /* in xsec */ new_nsec -= SCALE_XSEC(tb_delta, 1000000000); @@ -950,8 +942,7 @@ void __init time_init(void) if (__USE_RTC()) { /* 601 processor: dec counts down by 128 every 128ns */ ppc_tb_freq = 1000000000; - tb_last_stamp = get_rtcl(); - tb_last_jiffy = tb_last_stamp; + tb_last_jiffy = get_rtcl(); } else { /* Normal PowerPC with timebase register */ ppc_md.calibrate_decr(); @@ -959,7 +950,7 @@ void __init time_init(void) ppc_tb_freq / 1000000, ppc_tb_freq % 1000000); printk(KERN_DEBUG "time_init: processor frequency = %lu.%.6lu MHz\n", ppc_proc_freq / 1000000, ppc_proc_freq % 1000000); - tb_last_stamp = tb_last_jiffy = get_tb(); + tb_last_jiffy = get_tb(); } tb_ticks_per_jiffy = ppc_tb_freq / HZ; @@ -1036,7 +1027,7 @@ void __init time_init(void) do_gtod.varp = &do_gtod.vars[0]; do_gtod.var_idx = 0; do_gtod.varp->tb_orig_stamp = tb_last_jiffy; - __get_cpu_var(last_jiffy) = tb_last_stamp; + __get_cpu_var(last_jiffy) = tb_last_jiffy; do_gtod.varp->stamp_xsec = (u64) xtime.tv_sec * XSEC_PER_SEC; do_gtod.tb_ticks_per_sec = tb_ticks_per_sec; do_gtod.varp->tb_to_xs = tb_to_xs; diff --git a/include/asm-powerpc/time.h b/include/asm-powerpc/time.h index dcde4410348d..5785ac4737b5 100644 --- a/include/asm-powerpc/time.h +++ b/include/asm-powerpc/time.h @@ -30,10 +30,6 @@ extern unsigned long tb_ticks_per_usec; extern unsigned long tb_ticks_per_sec; extern u64 tb_to_xs; extern unsigned tb_to_us; -extern unsigned long tb_last_stamp; -extern u64 tb_last_jiffy; - -DECLARE_PER_CPU(unsigned long, last_jiffy); struct rtc_time; extern void to_tm(int tim, struct rtc_time * tm); From 8e34703b9315688305306d26148088b0a8292563 Mon Sep 17 00:00:00 2001 From: Russell King Date: Thu, 31 Aug 2006 15:09:30 +0100 Subject: [PATCH 444/488] [ARM] Fix ARM __raw_read_trylock() implementation Matthew Wilcox pointed out that the generic implementation of this is unfit for use. Here's an ARM optimised version instead. Signed-off-by: Russell King --- include/asm-arm/spinlock.h | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/include/asm-arm/spinlock.h b/include/asm-arm/spinlock.h index 406ca97a8ab2..e2f1d75171df 100644 --- a/include/asm-arm/spinlock.h +++ b/include/asm-arm/spinlock.h @@ -199,7 +199,21 @@ static inline void __raw_read_unlock(raw_rwlock_t *rw) : "cc"); } -#define __raw_read_trylock(lock) generic__raw_read_trylock(lock) +static inline int __raw_read_trylock(raw_rwlock_t *rw) +{ + unsigned long tmp tmp2 = 1; + + __asm__ __volatile__( +"1: ldrex %0, [%2]\n" +" adds %0, %0, #1\n" +" strexpl %1, %0, [%2]\n" + : "=&r" (tmp), "+r" (tmp2) + : "r" (&rw->lock) + : "cc"); + + smp_mb(); + return tmp2 == 0; +} /* read_can_lock - would read_trylock() succeed? */ #define __raw_read_can_lock(x) ((x)->lock < 0x80000000) From 851fb304b510fc1e5dc5852cda25361219c1c4b1 Mon Sep 17 00:00:00 2001 From: David Brownell Date: Thu, 31 Aug 2006 15:26:35 +0100 Subject: [PATCH 445/488] [ARM] 3763/1: add both rtcs to csb337 defconfig Patch from David Brownell This adds RTC support to the csb337 default config. Both the AT91 and the ds1307 RTCs are enabled (rtc0 and rtc1 respectively). The ds1307 is used to initialize the system time, since it's battery-backed. From then on the AT91 RTC is used, since it's more capable (with both alarm and update irqs, and system wakeup capability) even though it needs manual initialization (symlink /dev/rtc to /dev/rtc0 for older versions of hwclock, then "hwclock --systohc") in an rc script or from inittab. Signed-off-by: David Brownell Signed-off-by: Russell King --- arch/arm/configs/csb337_defconfig | 37 ++++++++++++++++++++++++++++--- 1 file changed, 34 insertions(+), 3 deletions(-) diff --git a/arch/arm/configs/csb337_defconfig b/arch/arm/configs/csb337_defconfig index 3594155a8137..cf3fa5cb26e4 100644 --- a/arch/arm/configs/csb337_defconfig +++ b/arch/arm/configs/csb337_defconfig @@ -621,9 +621,8 @@ CONFIG_AT91_WATCHDOG=y # USB-based Watchdog Cards # # CONFIG_USBPCWATCHDOG is not set +# CONFIG_HW_RANDOM is not set # CONFIG_NVRAM is not set -CONFIG_RTC=y -# CONFIG_AT91_RTC is not set # CONFIG_DTLK is not set # CONFIG_R3964 is not set @@ -956,9 +955,41 @@ CONFIG_USB_AT91=y CONFIG_MMC=y # CONFIG_MMC_DEBUG is not set CONFIG_MMC_BLOCK=y -# CONFIG_MMC_WBSD is not set CONFIG_MMC_AT91RM9200=y +# +# Real Time Clock +# +CONFIG_RTC_LIB=y +CONFIG_RTC_CLASS=y +CONFIG_RTC_HCTOSYS=y +CONFIG_RTC_HCTOSYS_DEVICE="rtc1" + +# +# RTC interfaces +# +# CONFIG_RTC_INTF_SYSFS is not set +CONFIG_RTC_INTF_PROC=y +CONFIG_RTC_INTF_DEV=y +# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set + +# +# RTC drivers +# +# CONFIG_RTC_DRV_X1205 is not set +CONFIG_RTC_DRV_DS1307=y +# CONFIG_RTC_DRV_DS1553 is not set +# CONFIG_RTC_DRV_ISL1208 is not set +# CONFIG_RTC_DRV_DS1672 is not set +# CONFIG_RTC_DRV_DS1742 is not set +# CONFIG_RTC_DRV_PCF8563 is not set +# CONFIG_RTC_DRV_PCF8583 is not set +# CONFIG_RTC_DRV_RS5C372 is not set +# CONFIG_RTC_DRV_M48T86 is not set +CONFIG_RTC_DRV_AT91=y +# CONFIG_RTC_DRV_TEST is not set +# CONFIG_RTC_DRV_V3020 is not set + # # File systems # From f105a7dfc5e81c28dd23ebf2328e42972e2cf240 Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Thu, 31 Aug 2006 15:26:37 +0100 Subject: [PATCH 446/488] [ARM] 3764/1: S3C24XX: change type naming to kernel style Patch from Ben Dooks The type naming in the s3c24xx dma code is riddled with typedefs creating _t types, from the code import from 2.4 which is contrary to the current Kernel coding style. This patch cleans this up, removing the typedefs and and fixing up the resultant code changes. Signed-off-by: Ben Dooks Signed-off-by: Russell King --- arch/arm/mach-s3c2410/dma.c | 88 +++++++++++++++--------------- include/asm-arm/arch-s3c2410/dma.h | 80 ++++++++++++--------------- 2 files changed, 80 insertions(+), 88 deletions(-) diff --git a/arch/arm/mach-s3c2410/dma.c b/arch/arm/mach-s3c2410/dma.c index 25855452fe8c..cc92a7b2db88 100644 --- a/arch/arm/mach-s3c2410/dma.c +++ b/arch/arm/mach-s3c2410/dma.c @@ -60,7 +60,7 @@ static void __iomem *dma_base; static kmem_cache_t *dma_kmem; /* dma channel state information */ -s3c2410_dma_chan_t s3c2410_chans[S3C2410_DMA_CHANNELS]; +struct s3c2410_dma_chan s3c2410_chans[S3C2410_DMA_CHANNELS]; /* debugging functions */ @@ -74,7 +74,7 @@ s3c2410_dma_chan_t s3c2410_chans[S3C2410_DMA_CHANNELS]; #define dma_wrreg(chan, reg, val) writel((val), (chan)->regs + (reg)) #else static inline void -dma_wrreg(s3c2410_dma_chan_t *chan, int reg, unsigned long val) +dma_wrreg(struct s3c2410_dma_chan *chan, int reg, unsigned long val) { pr_debug("writing %08x to register %08x\n",(unsigned int)val,reg); writel(val, dma_regaddr(chan, reg)); @@ -102,7 +102,7 @@ struct s3c2410_dma_regstate { */ static void -dmadbg_capture(s3c2410_dma_chan_t *chan, struct s3c2410_dma_regstate *regs) +dmadbg_capture(struct s3c2410_dma_chan *chan, struct s3c2410_dma_regstate *regs) { regs->dcsrc = dma_rdreg(chan, S3C2410_DMA_DCSRC); regs->disrc = dma_rdreg(chan, S3C2410_DMA_DISRC); @@ -112,7 +112,7 @@ dmadbg_capture(s3c2410_dma_chan_t *chan, struct s3c2410_dma_regstate *regs) } static void -dmadbg_dumpregs(const char *fname, int line, s3c2410_dma_chan_t *chan, +dmadbg_dumpregs(const char *fname, int line, struct s3c2410_dma_chan *chan, struct s3c2410_dma_regstate *regs) { printk(KERN_DEBUG "dma%d: %s:%d: DCSRC=%08lx, DISRC=%08lx, DSTAT=%08lx DMT=%02lx, DCON=%08lx\n", @@ -122,7 +122,7 @@ dmadbg_dumpregs(const char *fname, int line, s3c2410_dma_chan_t *chan, } static void -dmadbg_showchan(const char *fname, int line, s3c2410_dma_chan_t *chan) +dmadbg_showchan(const char *fname, int line, struct s3c2410_dma_chan *chan) { struct s3c2410_dma_regstate state; @@ -136,7 +136,7 @@ dmadbg_showchan(const char *fname, int line, s3c2410_dma_chan_t *chan) } static void -dmadbg_showregs(const char *fname, int line, s3c2410_dma_chan_t *chan) +dmadbg_showregs(const char *fname, int line, struct s3c2410_dma_chan *chan) { struct s3c2410_dma_regstate state; @@ -164,7 +164,7 @@ dmadbg_showregs(const char *fname, int line, s3c2410_dma_chan_t *chan) */ static void -s3c2410_dma_stats_timeout(s3c2410_dma_stats_t *stats, int val) +s3c2410_dma_stats_timeout(struct s3c2410_dma_stats *stats, int val) { if (stats == NULL) return; @@ -183,7 +183,7 @@ s3c2410_dma_stats_timeout(s3c2410_dma_stats_t *stats, int val) */ static int -s3c2410_dma_waitforload(s3c2410_dma_chan_t *chan, int line) +s3c2410_dma_waitforload(struct s3c2410_dma_chan *chan, int line) { int timeout = chan->load_timeout; int took; @@ -230,8 +230,8 @@ s3c2410_dma_waitforload(s3c2410_dma_chan_t *chan, int line) */ static inline int -s3c2410_dma_loadbuffer(s3c2410_dma_chan_t *chan, - s3c2410_dma_buf_t *buf) +s3c2410_dma_loadbuffer(struct s3c2410_dma_chan *chan, + struct s3c2410_dma_buf *buf) { unsigned long reload; @@ -304,7 +304,7 @@ s3c2410_dma_loadbuffer(s3c2410_dma_chan_t *chan, */ static void -s3c2410_dma_call_op(s3c2410_dma_chan_t *chan, s3c2410_chan_op_t op) +s3c2410_dma_call_op(struct s3c2410_dma_chan *chan, enum s3c2410_chan_op op) { if (chan->op_fn != NULL) { (chan->op_fn)(chan, op); @@ -318,8 +318,8 @@ s3c2410_dma_call_op(s3c2410_dma_chan_t *chan, s3c2410_chan_op_t op) */ static inline void -s3c2410_dma_buffdone(s3c2410_dma_chan_t *chan, s3c2410_dma_buf_t *buf, - s3c2410_dma_buffresult_t result) +s3c2410_dma_buffdone(struct s3c2410_dma_chan *chan, struct s3c2410_dma_buf *buf, + enum s3c2410_dma_buffresult result) { pr_debug("callback_fn=%p, buf=%p, id=%p, size=%d, result=%d\n", chan->callback_fn, buf, buf->id, buf->size, result); @@ -334,7 +334,7 @@ s3c2410_dma_buffdone(s3c2410_dma_chan_t *chan, s3c2410_dma_buf_t *buf, * start a dma channel going */ -static int s3c2410_dma_start(s3c2410_dma_chan_t *chan) +static int s3c2410_dma_start(struct s3c2410_dma_chan *chan) { unsigned long tmp; unsigned long flags; @@ -430,7 +430,7 @@ static int s3c2410_dma_start(s3c2410_dma_chan_t *chan) */ static int -s3c2410_dma_canload(s3c2410_dma_chan_t *chan) +s3c2410_dma_canload(struct s3c2410_dma_chan *chan) { if (chan->load_state == S3C2410_DMALOAD_NONE || chan->load_state == S3C2410_DMALOAD_1RUNNING) @@ -460,8 +460,8 @@ s3c2410_dma_canload(s3c2410_dma_chan_t *chan) int s3c2410_dma_enqueue(unsigned int channel, void *id, dma_addr_t data, int size) { - s3c2410_dma_chan_t *chan = &s3c2410_chans[channel]; - s3c2410_dma_buf_t *buf; + struct s3c2410_dma_chan *chan = &s3c2410_chans[channel]; + struct s3c2410_dma_buf *buf; unsigned long flags; check_channel(channel); @@ -540,7 +540,7 @@ int s3c2410_dma_enqueue(unsigned int channel, void *id, EXPORT_SYMBOL(s3c2410_dma_enqueue); static inline void -s3c2410_dma_freebuf(s3c2410_dma_buf_t *buf) +s3c2410_dma_freebuf(struct s3c2410_dma_buf *buf) { int magicok = (buf->magic == BUF_MAGIC); @@ -560,7 +560,7 @@ s3c2410_dma_freebuf(s3c2410_dma_buf_t *buf) */ static inline void -s3c2410_dma_lastxfer(s3c2410_dma_chan_t *chan) +s3c2410_dma_lastxfer(struct s3c2410_dma_chan *chan) { pr_debug("dma%d: s3c2410_dma_lastxfer: load_state %d\n", chan->number, chan->load_state); @@ -601,8 +601,8 @@ s3c2410_dma_lastxfer(s3c2410_dma_chan_t *chan) static irqreturn_t s3c2410_dma_irq(int irq, void *devpw, struct pt_regs *regs) { - s3c2410_dma_chan_t *chan = (s3c2410_dma_chan_t *)devpw; - s3c2410_dma_buf_t *buf; + struct s3c2410_dma_chan *chan = (struct s3c2410_dma_chan *)devpw; + struct s3c2410_dma_buf *buf; buf = chan->curr; @@ -731,10 +731,10 @@ s3c2410_dma_irq(int irq, void *devpw, struct pt_regs *regs) * get control of an dma channel */ -int s3c2410_dma_request(unsigned int channel, s3c2410_dma_client_t *client, +int s3c2410_dma_request(unsigned int channel, struct s3c2410_dma_client *client, void *dev) { - s3c2410_dma_chan_t *chan = &s3c2410_chans[channel]; + struct s3c2410_dma_chan *chan = &s3c2410_chans[channel]; unsigned long flags; int err; @@ -807,9 +807,9 @@ EXPORT_SYMBOL(s3c2410_dma_request); * allowed to go through. */ -int s3c2410_dma_free(dmach_t channel, s3c2410_dma_client_t *client) +int s3c2410_dma_free(dmach_t channel, struct s3c2410_dma_client *client) { - s3c2410_dma_chan_t *chan = &s3c2410_chans[channel]; + struct s3c2410_dma_chan *chan = &s3c2410_chans[channel]; unsigned long flags; check_channel(channel); @@ -846,7 +846,7 @@ int s3c2410_dma_free(dmach_t channel, s3c2410_dma_client_t *client) EXPORT_SYMBOL(s3c2410_dma_free); -static int s3c2410_dma_dostop(s3c2410_dma_chan_t *chan) +static int s3c2410_dma_dostop(struct s3c2410_dma_chan *chan) { unsigned long tmp; unsigned long flags; @@ -880,7 +880,7 @@ static int s3c2410_dma_dostop(s3c2410_dma_chan_t *chan) return 0; } -void s3c2410_dma_waitforstop(s3c2410_dma_chan_t *chan) +void s3c2410_dma_waitforstop(struct s3c2410_dma_chan *chan) { unsigned long tmp; unsigned int timeout = 0x10000; @@ -901,9 +901,9 @@ void s3c2410_dma_waitforstop(s3c2410_dma_chan_t *chan) * stop the channel, and remove all current and pending transfers */ -static int s3c2410_dma_flush(s3c2410_dma_chan_t *chan) +static int s3c2410_dma_flush(struct s3c2410_dma_chan *chan) { - s3c2410_dma_buf_t *buf, *next; + struct s3c2410_dma_buf *buf, *next; unsigned long flags; pr_debug("%s: chan %p (%d)\n", __FUNCTION__, chan, chan->number); @@ -958,7 +958,7 @@ static int s3c2410_dma_flush(s3c2410_dma_chan_t *chan) } int -s3c2410_dma_started(s3c2410_dma_chan_t *chan) +s3c2410_dma_started(struct s3c2410_dma_chan *chan) { unsigned long flags; @@ -995,9 +995,9 @@ s3c2410_dma_started(s3c2410_dma_chan_t *chan) } int -s3c2410_dma_ctrl(dmach_t channel, s3c2410_chan_op_t op) +s3c2410_dma_ctrl(dmach_t channel, enum s3c2410_chan_op op) { - s3c2410_dma_chan_t *chan = &s3c2410_chans[channel]; + struct s3c2410_dma_chan *chan = &s3c2410_chans[channel]; check_channel(channel); @@ -1046,7 +1046,7 @@ int s3c2410_dma_config(dmach_t channel, int xferunit, int dcon) { - s3c2410_dma_chan_t *chan = &s3c2410_chans[channel]; + struct s3c2410_dma_chan *chan = &s3c2410_chans[channel]; pr_debug("%s: chan=%d, xfer_unit=%d, dcon=%08x\n", __FUNCTION__, channel, xferunit, dcon); @@ -1086,7 +1086,7 @@ EXPORT_SYMBOL(s3c2410_dma_config); int s3c2410_dma_setflags(dmach_t channel, unsigned int flags) { - s3c2410_dma_chan_t *chan = &s3c2410_chans[channel]; + struct s3c2410_dma_chan *chan = &s3c2410_chans[channel]; check_channel(channel); @@ -1106,7 +1106,7 @@ EXPORT_SYMBOL(s3c2410_dma_setflags); int s3c2410_dma_set_opfn(dmach_t channel, s3c2410_dma_opfn_t rtn) { - s3c2410_dma_chan_t *chan = &s3c2410_chans[channel]; + struct s3c2410_dma_chan *chan = &s3c2410_chans[channel]; check_channel(channel); @@ -1121,7 +1121,7 @@ EXPORT_SYMBOL(s3c2410_dma_set_opfn); int s3c2410_dma_set_buffdone_fn(dmach_t channel, s3c2410_dma_cbfn_t rtn) { - s3c2410_dma_chan_t *chan = &s3c2410_chans[channel]; + struct s3c2410_dma_chan *chan = &s3c2410_chans[channel]; check_channel(channel); @@ -1149,11 +1149,11 @@ EXPORT_SYMBOL(s3c2410_dma_set_buffdone_fn); */ int s3c2410_dma_devconfig(int channel, - s3c2410_dmasrc_t source, + enum s3c2410_dmasrc source, int hwcfg, unsigned long devaddr) { - s3c2410_dma_chan_t *chan = &s3c2410_chans[channel]; + struct s3c2410_dma_chan *chan = &s3c2410_chans[channel]; check_channel(channel); @@ -1200,7 +1200,7 @@ EXPORT_SYMBOL(s3c2410_dma_devconfig); int s3c2410_dma_getposition(dmach_t channel, dma_addr_t *src, dma_addr_t *dst) { - s3c2410_dma_chan_t *chan = &s3c2410_chans[channel]; + struct s3c2410_dma_chan *chan = &s3c2410_chans[channel]; check_channel(channel); @@ -1222,7 +1222,7 @@ EXPORT_SYMBOL(s3c2410_dma_getposition); static int s3c2410_dma_suspend(struct sys_device *dev, pm_message_t state) { - s3c2410_dma_chan_t *cp = container_of(dev, s3c2410_dma_chan_t, dev); + struct s3c2410_dma_chan *cp = container_of(dev, struct s3c2410_dma_chan, dev); printk(KERN_DEBUG "suspending dma channel %d\n", cp->number); @@ -1262,7 +1262,7 @@ static struct sysdev_class dma_sysclass = { static void s3c2410_dma_cache_ctor(void *p, kmem_cache_t *c, unsigned long f) { - memset(p, 0, sizeof(s3c2410_dma_buf_t)); + memset(p, 0, sizeof(struct s3c2410_dma_buf)); } @@ -1270,7 +1270,7 @@ static void s3c2410_dma_cache_ctor(void *p, kmem_cache_t *c, unsigned long f) static int __init s3c2410_init_dma(void) { - s3c2410_dma_chan_t *cp; + struct s3c2410_dma_chan *cp; int channel; int ret; @@ -1288,7 +1288,7 @@ static int __init s3c2410_init_dma(void) goto err; } - dma_kmem = kmem_cache_create("dma_desc", sizeof(s3c2410_dma_buf_t), 0, + dma_kmem = kmem_cache_create("dma_desc", sizeof(struct s3c2410_dma_buf), 0, SLAB_HWCACHE_ALIGN, s3c2410_dma_cache_ctor, NULL); @@ -1301,7 +1301,7 @@ static int __init s3c2410_init_dma(void) for (channel = 0; channel < S3C2410_DMA_CHANNELS; channel++) { cp = &s3c2410_chans[channel]; - memset(cp, 0, sizeof(s3c2410_dma_chan_t)); + memset(cp, 0, sizeof(struct s3c2410_dma_chan)); /* dma channel irqs are in order.. */ cp->number = channel; diff --git a/include/asm-arm/arch-s3c2410/dma.h b/include/asm-arm/arch-s3c2410/dma.h index 7463fd5252ce..46e65409fcc5 100644 --- a/include/asm-arm/arch-s3c2410/dma.h +++ b/include/asm-arm/arch-s3c2410/dma.h @@ -35,14 +35,14 @@ /* types */ -typedef enum { +enum s3c2410_dma_state { S3C2410_DMA_IDLE, S3C2410_DMA_RUNNING, S3C2410_DMA_PAUSED -} s3c2410_dma_state_t; +}; -/* s3c2410_dma_loadst_t +/* enum s3c2410_dma_loadst * * This represents the state of the DMA engine, wrt to the loaded / running * transfers. Since we don't have any way of knowing exactly the state of @@ -70,34 +70,32 @@ typedef enum { * currently running. */ -typedef enum { +enum s3c2410_dma_loadst { S3C2410_DMALOAD_NONE, S3C2410_DMALOAD_1LOADED, S3C2410_DMALOAD_1RUNNING, S3C2410_DMALOAD_1LOADED_1RUNNING, -} s3c2410_dma_loadst_t; +}; -typedef enum { +enum s3c2410_dma_buffresult { S3C2410_RES_OK, S3C2410_RES_ERR, S3C2410_RES_ABORT -} s3c2410_dma_buffresult_t; +}; -typedef enum s3c2410_dmasrc_e s3c2410_dmasrc_t; - -enum s3c2410_dmasrc_e { +enum s3c2410_dmasrc { S3C2410_DMASRC_HW, /* source is memory */ S3C2410_DMASRC_MEM /* source is hardware */ }; -/* enum s3c2410_chan_op_e +/* enum s3c2410_chan_op * * operation codes passed to the DMA code by the user, and also used * to inform the current channel owner of any changes to the system state */ -enum s3c2410_chan_op_e { +enum s3c2410_chan_op { S3C2410_DMAOP_START, S3C2410_DMAOP_STOP, S3C2410_DMAOP_PAUSE, @@ -107,8 +105,6 @@ enum s3c2410_chan_op_e { S3C2410_DMAOP_STARTED, /* indicate channel started */ }; -typedef enum s3c2410_chan_op_e s3c2410_chan_op_t; - /* flags */ #define S3C2410_DMAF_SLOW (1<<0) /* slow, so don't worry about @@ -117,22 +113,19 @@ typedef enum s3c2410_chan_op_e s3c2410_chan_op_t; /* dma buffer */ -typedef struct s3c2410_dma_buf_s s3c2410_dma_buf_t; - struct s3c2410_dma_client { char *name; }; -typedef struct s3c2410_dma_client s3c2410_dma_client_t; - /* s3c2410_dma_buf_s * * internally used buffer structure to describe a queued or running * buffer. */ -struct s3c2410_dma_buf_s { - s3c2410_dma_buf_t *next; +struct s3c2410_dma_buf; +struct s3c2410_dma_buf { + struct s3c2410_dma_buf *next; int magic; /* magic */ int size; /* buffer size in bytes */ dma_addr_t data; /* start of DMA data */ @@ -142,20 +135,21 @@ struct s3c2410_dma_buf_s { /* [1] is this updated for both recv/send modes? */ -typedef struct s3c2410_dma_chan_s s3c2410_dma_chan_t; +struct s3c2410_dma_chan; /* s3c2410_dma_cbfn_t * * buffer callback routine type */ -typedef void (*s3c2410_dma_cbfn_t)(s3c2410_dma_chan_t *, void *buf, int size, - s3c2410_dma_buffresult_t result); +typedef void (*s3c2410_dma_cbfn_t)(struct s3c2410_dma_chan *, + void *buf, int size, + enum s3c2410_dma_buffresult result); -typedef int (*s3c2410_dma_opfn_t)(s3c2410_dma_chan_t *, - s3c2410_chan_op_t ); +typedef int (*s3c2410_dma_opfn_t)(struct s3c2410_dma_chan *, + enum s3c2410_chan_op ); -struct s3c2410_dma_stats_s { +struct s3c2410_dma_stats { unsigned long loads; unsigned long timeout_longest; unsigned long timeout_shortest; @@ -163,14 +157,12 @@ struct s3c2410_dma_stats_s { unsigned long timeout_failed; }; -typedef struct s3c2410_dma_stats_s s3c2410_dma_stats_t; - -/* struct s3c2410_dma_chan_s +/* struct s3c2410_dma_chan * * full state information for each DMA channel */ -struct s3c2410_dma_chan_s { +struct s3c2410_dma_chan { /* channel state flags and information */ unsigned char number; /* number of this dma channel */ unsigned char in_use; /* channel allocated */ @@ -180,12 +172,12 @@ struct s3c2410_dma_chan_s { /* channel state */ - s3c2410_dma_state_t state; - s3c2410_dma_loadst_t load_state; - s3c2410_dma_client_t *client; + enum s3c2410_dma_state state; + enum s3c2410_dma_loadst load_state; + struct s3c2410_dma_client *client; /* channel configuration */ - s3c2410_dmasrc_t source; + enum s3c2410_dmasrc source; unsigned long dev_addr; unsigned long load_timeout; unsigned int flags; /* channel flags */ @@ -201,20 +193,20 @@ struct s3c2410_dma_chan_s { s3c2410_dma_opfn_t op_fn; /* channel operation callback */ /* stats gathering */ - s3c2410_dma_stats_t *stats; - s3c2410_dma_stats_t stats_store; + struct s3c2410_dma_stats *stats; + struct s3c2410_dma_stats stats_store; /* buffer list and information */ - s3c2410_dma_buf_t *curr; /* current dma buffer */ - s3c2410_dma_buf_t *next; /* next buffer to load */ - s3c2410_dma_buf_t *end; /* end of queue */ + struct s3c2410_dma_buf *curr; /* current dma buffer */ + struct s3c2410_dma_buf *next; /* next buffer to load */ + struct s3c2410_dma_buf *end; /* end of queue */ /* system device */ struct sys_device dev; }; /* the currently allocated channel information */ -extern s3c2410_dma_chan_t s3c2410_chans[]; +extern struct s3c2410_dma_chan s3c2410_chans[]; /* note, we don't really use dma_device_t at the moment */ typedef unsigned long dma_device_t; @@ -227,7 +219,7 @@ typedef unsigned long dma_device_t; */ extern int s3c2410_dma_request(dmach_t channel, - s3c2410_dma_client_t *, void *dev); + struct s3c2410_dma_client *, void *dev); /* s3c2410_dma_ctrl @@ -235,7 +227,7 @@ extern int s3c2410_dma_request(dmach_t channel, * change the state of the dma channel */ -extern int s3c2410_dma_ctrl(dmach_t channel, s3c2410_chan_op_t op); +extern int s3c2410_dma_ctrl(dmach_t channel, enum s3c2410_chan_op op); /* s3c2410_dma_setflags * @@ -250,7 +242,7 @@ extern int s3c2410_dma_setflags(dmach_t channel, * free the dma channel (will also abort any outstanding operations) */ -extern int s3c2410_dma_free(dmach_t channel, s3c2410_dma_client_t *); +extern int s3c2410_dma_free(dmach_t channel, struct s3c2410_dma_client *); /* s3c2410_dma_enqueue * @@ -274,7 +266,7 @@ extern int s3c2410_dma_config(dmach_t channel, int xferunit, int dcon); * configure the device we're talking to */ -extern int s3c2410_dma_devconfig(int channel, s3c2410_dmasrc_t source, +extern int s3c2410_dma_devconfig(int channel, enum s3c2410_dmasrc source, int hwcfg, unsigned long devaddr); /* s3c2410_dma_getposition From 57bcdafcb1e0782e7ae13471d9223c69e3a6cba2 Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Thu, 31 Aug 2006 15:26:41 +0100 Subject: [PATCH 447/488] [ARM] 3765/1: S3C24XX: cleanup include/asm-arm/arch-s3c2410/dma.h Patch from Ben Dooks Cleanup for include/asm-arma/arch-s3c2410/dma.h, by using tab characters to indent items, remove the now un-necessary changelog, and update the copyright information. Signed-off-by: Ben Dooks Signed-off-by: Russell King --- include/asm-arm/arch-s3c2410/dma.h | 90 ++++++++++++++---------------- 1 file changed, 41 insertions(+), 49 deletions(-) diff --git a/include/asm-arm/arch-s3c2410/dma.h b/include/asm-arm/arch-s3c2410/dma.h index 46e65409fcc5..3661e465b0a5 100644 --- a/include/asm-arm/arch-s3c2410/dma.h +++ b/include/asm-arm/arch-s3c2410/dma.h @@ -1,18 +1,13 @@ -/* linux/include/asm-arm/arch-bast/dma.h +/* linux/include/asm-arm/arch-s3c2410/dma.h * - * Copyright (C) 2003,2004 Simtec Electronics + * Copyright (C) 2003,2004,2006 Simtec Electronics * Ben Dooks * - * Samsung S3C2410X DMA support + * Samsung S3C241XX DMA support * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. - * - * Changelog: - * ??-May-2003 BJD Created file - * ??-Jun-2003 BJD Added more dma functionality to go with arch - * 10-Nov-2004 BJD Added sys_device support */ #ifndef __ASM_ARCH_DMA_H @@ -21,15 +16,13 @@ #include #include "hardware.h" - /* * This is the maximum DMA address(physical address) that can be DMAd to. * */ -#define MAX_DMA_ADDRESS 0x20000000 +#define MAX_DMA_ADDRESS 0x40000000 #define MAX_DMA_TRANSFER_SIZE 0x100000 /* Data Unit is half word */ - /* we have 4 dma channels */ #define S3C2410_DMA_CHANNELS (4) @@ -83,10 +76,9 @@ enum s3c2410_dma_buffresult { S3C2410_RES_ABORT }; - enum s3c2410_dmasrc { - S3C2410_DMASRC_HW, /* source is memory */ - S3C2410_DMASRC_MEM /* source is hardware */ + S3C2410_DMASRC_HW, /* source is memory */ + S3C2410_DMASRC_MEM /* source is hardware */ }; /* enum s3c2410_chan_op @@ -101,7 +93,7 @@ enum s3c2410_chan_op { S3C2410_DMAOP_PAUSE, S3C2410_DMAOP_RESUME, S3C2410_DMAOP_FLUSH, - S3C2410_DMAOP_TIMEOUT, /* internal signal to handler */ + S3C2410_DMAOP_TIMEOUT, /* internal signal to handler */ S3C2410_DMAOP_STARTED, /* indicate channel started */ }; @@ -125,12 +117,12 @@ struct s3c2410_dma_client { struct s3c2410_dma_buf; struct s3c2410_dma_buf { - struct s3c2410_dma_buf *next; - int magic; /* magic */ - int size; /* buffer size in bytes */ - dma_addr_t data; /* start of DMA data */ - dma_addr_t ptr; /* where the DMA got to [1] */ - void *id; /* client's id */ + struct s3c2410_dma_buf *next; + int magic; /* magic */ + int size; /* buffer size in bytes */ + dma_addr_t data; /* start of DMA data */ + dma_addr_t ptr; /* where the DMA got to [1] */ + void *id; /* client's id */ }; /* [1] is this updated for both recv/send modes? */ @@ -150,11 +142,11 @@ typedef int (*s3c2410_dma_opfn_t)(struct s3c2410_dma_chan *, enum s3c2410_chan_op ); struct s3c2410_dma_stats { - unsigned long loads; - unsigned long timeout_longest; - unsigned long timeout_shortest; - unsigned long timeout_avg; - unsigned long timeout_failed; + unsigned long loads; + unsigned long timeout_longest; + unsigned long timeout_shortest; + unsigned long timeout_avg; + unsigned long timeout_failed; }; /* struct s3c2410_dma_chan @@ -164,42 +156,42 @@ struct s3c2410_dma_stats { struct s3c2410_dma_chan { /* channel state flags and information */ - unsigned char number; /* number of this dma channel */ - unsigned char in_use; /* channel allocated */ - unsigned char irq_claimed; /* irq claimed for channel */ - unsigned char irq_enabled; /* irq enabled for channel */ - unsigned char xfer_unit; /* size of an transfer */ + unsigned char number; /* number of this dma channel */ + unsigned char in_use; /* channel allocated */ + unsigned char irq_claimed; /* irq claimed for channel */ + unsigned char irq_enabled; /* irq enabled for channel */ + unsigned char xfer_unit; /* size of an transfer */ /* channel state */ - enum s3c2410_dma_state state; - enum s3c2410_dma_loadst load_state; - struct s3c2410_dma_client *client; + enum s3c2410_dma_state state; + enum s3c2410_dma_loadst load_state; + struct s3c2410_dma_client *client; /* channel configuration */ - enum s3c2410_dmasrc source; - unsigned long dev_addr; - unsigned long load_timeout; - unsigned int flags; /* channel flags */ + enum s3c2410_dmasrc source; + unsigned long dev_addr; + unsigned long load_timeout; + unsigned int flags; /* channel flags */ /* channel's hardware position and configuration */ - void __iomem *regs; /* channels registers */ - void __iomem *addr_reg; /* data address register */ - unsigned int irq; /* channel irq */ - unsigned long dcon; /* default value of DCON */ + void __iomem *regs; /* channels registers */ + void __iomem *addr_reg; /* data address register */ + unsigned int irq; /* channel irq */ + unsigned long dcon; /* default value of DCON */ /* driver handles */ - s3c2410_dma_cbfn_t callback_fn; /* buffer done callback */ - s3c2410_dma_opfn_t op_fn; /* channel operation callback */ + s3c2410_dma_cbfn_t callback_fn; /* buffer done callback */ + s3c2410_dma_opfn_t op_fn; /* channel op callback */ /* stats gathering */ - struct s3c2410_dma_stats *stats; - struct s3c2410_dma_stats stats_store; + struct s3c2410_dma_stats *stats; + struct s3c2410_dma_stats stats_store; /* buffer list and information */ - struct s3c2410_dma_buf *curr; /* current dma buffer */ - struct s3c2410_dma_buf *next; /* next buffer to load */ - struct s3c2410_dma_buf *end; /* end of queue */ + struct s3c2410_dma_buf *curr; /* current dma buffer */ + struct s3c2410_dma_buf *next; /* next buffer to load */ + struct s3c2410_dma_buf *end; /* end of queue */ /* system device */ struct sys_device dev; From 22db37ec5fd51b0c77b1dd5751b1cdc2672c08d6 Mon Sep 17 00:00:00 2001 From: Chris Wright Date: Thu, 31 Aug 2006 00:53:22 -0700 Subject: [PATCH 448/488] [PATCH] i386: rwlock.h fix smp alternatives fix Commit 8c74932779fc6f61b4c30145863a17125c1a296c ("i386: Remove alternative_smp") did not actually compile on x86 with CONFIG_SMP. This fixes the __build_read/write_lock helpers. I've boot tested on SMP. [ Andi: "Oops, I think that was a quilt unrefreshed patch. Sorry. I fixed those before testing, but then still send out the old patch." ] Signed-off-by: Chris Wright Cc: Gerd Hoffmann Acked-by: Andi Kleen Signed-off-by: Linus Torvalds --- include/asm-i386/rwlock.h | 24 +++++++++++------------- 1 file changed, 11 insertions(+), 13 deletions(-) diff --git a/include/asm-i386/rwlock.h b/include/asm-i386/rwlock.h index 3ac1ba98b1bc..87c069ccba08 100644 --- a/include/asm-i386/rwlock.h +++ b/include/asm-i386/rwlock.h @@ -21,21 +21,21 @@ #define RW_LOCK_BIAS_STR "0x01000000" #define __build_read_lock_ptr(rw, helper) \ - asm volatile(LOCK_PREFIX " ; subl $1,(%0)\n\t" \ + asm volatile(LOCK_PREFIX " subl $1,(%0)\n\t" \ "jns 1f\n" \ "call " helper "\n\t" \ "1:\n" \ - :"a" (rw) : "memory") + ::"a" (rw) : "memory") #define __build_read_lock_const(rw, helper) \ - asm volatile(LOCK_PREFIX " ; subl $1,%0\n\t" \ + asm volatile(LOCK_PREFIX " subl $1,%0\n\t" \ "jns 1f\n" \ "pushl %%eax\n\t" \ "leal %0,%%eax\n\t" \ "call " helper "\n\t" \ "popl %%eax\n\t" \ - "1:\n" : \ - "+m" (*(volatile int *)rw) : : "memory") + "1:\n" \ + :"+m" (*(volatile int *)rw) : : "memory") #define __build_read_lock(rw, helper) do { \ if (__builtin_constant_p(rw)) \ @@ -45,23 +45,21 @@ } while (0) #define __build_write_lock_ptr(rw, helper) \ - asm volatile(LOCK_PREFIX " ; subl $" RW_LOCK_BIAS_STR ",(%0)\n\t" \ + asm volatile(LOCK_PREFIX " subl $" RW_LOCK_BIAS_STR ",(%0)\n\t" \ "jz 1f\n" \ "call " helper "\n\t" \ - "1:\n", \ - "subl $" RW_LOCK_BIAS_STR ",(%0)\n\t", \ - :"a" (rw) : "memory") + "1:\n" \ + ::"a" (rw) : "memory") #define __build_write_lock_const(rw, helper) \ - asm volatile(LOCK_PREFIX " ; subl $" RW_LOCK_BIAS_STR ",%0\n\t" \ + asm volatile(LOCK_PREFIX " subl $" RW_LOCK_BIAS_STR ",%0\n\t" \ "jz 1f\n" \ "pushl %%eax\n\t" \ "leal %0,%%eax\n\t" \ "call " helper "\n\t" \ "popl %%eax\n\t" \ - "1:\n", \ - "subl $" RW_LOCK_BIAS_STR ",%0\n\t", \ - "+m" (*(volatile int *)rw) : : "memory") + "1:\n" \ + :"+m" (*(volatile int *)rw) : : "memory") #define __build_write_lock(rw, helper) do { \ if (__builtin_constant_p(rw)) \ From 99c7bc0133b875280fdd2bf78e4ffbd58cc609e3 Mon Sep 17 00:00:00 2001 From: YOSHIFUJI Hideaki Date: Thu, 31 Aug 2006 14:52:17 -0700 Subject: [PATCH 449/488] [IPV6]: Fix kernel OOPs when setting sticky socket options. Bug noticed by Remi Denis-Courmont . Signed-off-by: YOSHIFUJI Hideaki Signed-off-by: David S. Miller --- net/ipv6/exthdrs.c | 29 ++++++++++++++++------------- 1 file changed, 16 insertions(+), 13 deletions(-) diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c index 9d0ee7f0eeb5..86dac106873b 100644 --- a/net/ipv6/exthdrs.c +++ b/net/ipv6/exthdrs.c @@ -635,14 +635,17 @@ ipv6_renew_options(struct sock *sk, struct ipv6_txoptions *opt, struct ipv6_txoptions *opt2; int err; - if (newtype != IPV6_HOPOPTS && opt->hopopt) - tot_len += CMSG_ALIGN(ipv6_optlen(opt->hopopt)); - if (newtype != IPV6_RTHDRDSTOPTS && opt->dst0opt) - tot_len += CMSG_ALIGN(ipv6_optlen(opt->dst0opt)); - if (newtype != IPV6_RTHDR && opt->srcrt) - tot_len += CMSG_ALIGN(ipv6_optlen(opt->srcrt)); - if (newtype != IPV6_DSTOPTS && opt->dst1opt) - tot_len += CMSG_ALIGN(ipv6_optlen(opt->dst1opt)); + if (opt) { + if (newtype != IPV6_HOPOPTS && opt->hopopt) + tot_len += CMSG_ALIGN(ipv6_optlen(opt->hopopt)); + if (newtype != IPV6_RTHDRDSTOPTS && opt->dst0opt) + tot_len += CMSG_ALIGN(ipv6_optlen(opt->dst0opt)); + if (newtype != IPV6_RTHDR && opt->srcrt) + tot_len += CMSG_ALIGN(ipv6_optlen(opt->srcrt)); + if (newtype != IPV6_DSTOPTS && opt->dst1opt) + tot_len += CMSG_ALIGN(ipv6_optlen(opt->dst1opt)); + } + if (newopt && newoptlen) tot_len += CMSG_ALIGN(newoptlen); @@ -659,25 +662,25 @@ ipv6_renew_options(struct sock *sk, struct ipv6_txoptions *opt, opt2->tot_len = tot_len; p = (char *)(opt2 + 1); - err = ipv6_renew_option(opt->hopopt, newopt, newoptlen, + err = ipv6_renew_option(opt ? opt->hopopt : NULL, newopt, newoptlen, newtype != IPV6_HOPOPTS, &opt2->hopopt, &p); if (err) goto out; - err = ipv6_renew_option(opt->dst0opt, newopt, newoptlen, + err = ipv6_renew_option(opt ? opt->dst0opt : NULL, newopt, newoptlen, newtype != IPV6_RTHDRDSTOPTS, &opt2->dst0opt, &p); if (err) goto out; - err = ipv6_renew_option(opt->srcrt, newopt, newoptlen, + err = ipv6_renew_option(opt ? opt->srcrt : NULL, newopt, newoptlen, newtype != IPV6_RTHDR, - (struct ipv6_opt_hdr **)opt2->srcrt, &p); + (struct ipv6_opt_hdr **)&opt2->srcrt, &p); if (err) goto out; - err = ipv6_renew_option(opt->dst1opt, newopt, newoptlen, + err = ipv6_renew_option(opt ? opt->dst1opt : NULL, newopt, newoptlen, newtype != IPV6_DSTOPTS, &opt2->dst1opt, &p); if (err) From 5991c84421f3ea1e281954610a39e4993e5c39e4 Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Thu, 31 Aug 2006 15:21:50 -0700 Subject: [PATCH 450/488] [NET]: Rate limiting for socket allocation failure messages. This patch limits the warning messages when socket allocation failures happen. It happens under memory pressure. Signed-off-by: Akinobu Mita Signed-off-by: David S. Miller --- net/socket.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/socket.c b/net/socket.c index b4848ce0d6ac..6d261bf206fc 100644 --- a/net/socket.c +++ b/net/socket.c @@ -1178,7 +1178,8 @@ static int __sock_create(int family, int type, int protocol, struct socket **res */ if (!(sock = sock_alloc())) { - printk(KERN_WARNING "socket: no more sockets\n"); + if (net_ratelimit()) + printk(KERN_WARNING "socket: no more sockets\n"); err = -ENFILE; /* Not exactly a match, but its the closest posix thing */ goto out; From 0668b47205e42c04e9c1b594573be5a822ac7f09 Mon Sep 17 00:00:00 2001 From: Wei Dong Date: Thu, 31 Aug 2006 15:24:48 -0700 Subject: [PATCH 451/488] [IPV4]: Fix SNMPv2 "ipFragFails" counter error When I tested Linux kernel 2.6.17.7 about statistics "ipFragFails",found that this counter couldn't increase correctly. The criteria is RFC2011: RFC2011 ipFragFails OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of IP datagrams that have been discarded because they needed to be fragmented at this entity but could not be, e.g., because their Don't Fragment flag was set." ::= { ip 18 } When I send big IP packet to a router with DF bit set to 1 which need to be fragmented, and router just sends an ICMP error message ICMP_FRAG_NEEDED but no increments for this counter(in the function ip_fragment). Signed-off-by: Wei Dong Signed-off-by: David S. Miller --- net/ipv4/ip_output.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c index 4c20f5546893..a2ede167e045 100644 --- a/net/ipv4/ip_output.c +++ b/net/ipv4/ip_output.c @@ -440,6 +440,7 @@ int ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff*)) iph = skb->nh.iph; if (unlikely((iph->frag_off & htons(IP_DF)) && !skb->local_df)) { + IP_INC_STATS(IPSTATS_MIB_FRAGFAILS); icmp_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED, htonl(dst_mtu(&rt->u.dst))); kfree_skb(skb); From 5a4e6dccbc0cd1b726820b782daebf887dcb95e9 Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Thu, 31 Aug 2006 16:43:06 -0700 Subject: [PATCH 452/488] IB/mthca: Use IRQ safe locks to protect allocation bitmaps It is supposed to be OK to call mthca_create_ah() and mthca_destroy_ah() from any context. However, for mem-full HCAs, these functions use the mthca_alloc() and mthca_free() bitmap helpers, and those helpers use non-IRQ-safe spin_lock() internally. Lockdep correctly warns that this could lead to a deadlock. Fix this by changing mthca_alloc() and mthca_free() to use spin_lock_irqsave(). Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mthca/mthca_allocator.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/drivers/infiniband/hw/mthca/mthca_allocator.c b/drivers/infiniband/hw/mthca/mthca_allocator.c index 25157f57a6d0..f930e55b58fc 100644 --- a/drivers/infiniband/hw/mthca/mthca_allocator.c +++ b/drivers/infiniband/hw/mthca/mthca_allocator.c @@ -41,9 +41,11 @@ /* Trivial bitmap-based allocator */ u32 mthca_alloc(struct mthca_alloc *alloc) { + unsigned long flags; u32 obj; - spin_lock(&alloc->lock); + spin_lock_irqsave(&alloc->lock, flags); + obj = find_next_zero_bit(alloc->table, alloc->max, alloc->last); if (obj >= alloc->max) { alloc->top = (alloc->top + alloc->max) & alloc->mask; @@ -56,19 +58,24 @@ u32 mthca_alloc(struct mthca_alloc *alloc) } else obj = -1; - spin_unlock(&alloc->lock); + spin_unlock_irqrestore(&alloc->lock, flags); return obj; } void mthca_free(struct mthca_alloc *alloc, u32 obj) { + unsigned long flags; + obj &= alloc->max - 1; - spin_lock(&alloc->lock); + + spin_lock_irqsave(&alloc->lock, flags); + clear_bit(obj, alloc->table); alloc->last = min(alloc->last, obj); alloc->top = (alloc->top + alloc->max) & alloc->mask; - spin_unlock(&alloc->lock); + + spin_unlock_irqrestore(&alloc->lock, flags); } int mthca_alloc_init(struct mthca_alloc *alloc, u32 num, u32 mask, From 082fdd12b15c28ab74e5f6559fb3ba15bf9fd393 Mon Sep 17 00:00:00 2001 From: "juergen.mell@t-online.de" Date: Mon, 28 Aug 2006 13:53:53 -0700 Subject: [PATCH 453/488] USB floppy drive SAMSUNG SFD-321U/EP detected 8 times USB floppy drive SAMSUNG SFD-321U/EP detected 8 times Acked-by: mantel@suse.de Signed-off-by: Greg Kroah-Hartman --- drivers/usb/storage/unusual_devs.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h index 4a803d69fa36..43ed6b19535d 100644 --- a/drivers/usb/storage/unusual_devs.h +++ b/drivers/usb/storage/unusual_devs.h @@ -599,6 +599,13 @@ UNUSUAL_DEV( 0x054c, 0x0099, 0x0000, 0x9999, US_SC_DEVICE, US_PR_DEVICE, NULL, US_FL_FIX_INQUIRY ), +/* floppy reports multiple luns */ +UNUSUAL_DEV( 0x055d, 0x2020, 0x0000, 0x0210, + "SAMSUNG", + "SFD-321U [FW 0C]", + US_SC_DEVICE, US_PR_DEVICE, NULL, + US_FL_SINGLE_LUN ), + UNUSUAL_DEV( 0x057b, 0x0000, 0x0000, 0x0299, "Y-E Data", From 6f8d9e26e7deecb1296c221aa979542bc5d63f20 Mon Sep 17 00:00:00 2001 From: Jeremy Roberson Date: Mon, 28 Aug 2006 19:58:28 -0700 Subject: [PATCH 454/488] hid-core.c: Adds all GTCO CalComp Digitizers and InterWrite School Products to blacklist Adds all GTCO CalComp Digitizers and InterWrite School Products to hid-core.c blacklist. Signed-off-by: Jeremy A. Roberson Signed-off-by: Greg Kroah-Hartman --- drivers/usb/input/hid-core.c | 92 ++++++++++++++++++++++++++++++++++++ 1 file changed, 92 insertions(+) diff --git a/drivers/usb/input/hid-core.c b/drivers/usb/input/hid-core.c index 8ea9c915fbf9..59a92149a0dc 100644 --- a/drivers/usb/input/hid-core.c +++ b/drivers/usb/input/hid-core.c @@ -1411,6 +1411,53 @@ void hid_init_reports(struct hid_device *hid) warn("timeout initializing reports"); } +#define USB_VENDOR_ID_GTCO 0x078c +#define USB_DEVICE_ID_GTCO_90 0x0090 +#define USB_DEVICE_ID_GTCO_100 0x0100 +#define USB_DEVICE_ID_GTCO_101 0x0101 +#define USB_DEVICE_ID_GTCO_103 0x0103 +#define USB_DEVICE_ID_GTCO_104 0x0104 +#define USB_DEVICE_ID_GTCO_105 0x0105 +#define USB_DEVICE_ID_GTCO_106 0x0106 +#define USB_DEVICE_ID_GTCO_107 0x0107 +#define USB_DEVICE_ID_GTCO_108 0x0108 +#define USB_DEVICE_ID_GTCO_200 0x0200 +#define USB_DEVICE_ID_GTCO_201 0x0201 +#define USB_DEVICE_ID_GTCO_202 0x0202 +#define USB_DEVICE_ID_GTCO_203 0x0203 +#define USB_DEVICE_ID_GTCO_204 0x0204 +#define USB_DEVICE_ID_GTCO_205 0x0205 +#define USB_DEVICE_ID_GTCO_206 0x0206 +#define USB_DEVICE_ID_GTCO_207 0x0207 +#define USB_DEVICE_ID_GTCO_300 0x0300 +#define USB_DEVICE_ID_GTCO_301 0x0301 +#define USB_DEVICE_ID_GTCO_302 0x0302 +#define USB_DEVICE_ID_GTCO_303 0x0303 +#define USB_DEVICE_ID_GTCO_304 0x0304 +#define USB_DEVICE_ID_GTCO_305 0x0305 +#define USB_DEVICE_ID_GTCO_306 0x0306 +#define USB_DEVICE_ID_GTCO_307 0x0307 +#define USB_DEVICE_ID_GTCO_308 0x0308 +#define USB_DEVICE_ID_GTCO_309 0x0309 +#define USB_DEVICE_ID_GTCO_400 0x0400 +#define USB_DEVICE_ID_GTCO_401 0x0401 +#define USB_DEVICE_ID_GTCO_402 0x0402 +#define USB_DEVICE_ID_GTCO_403 0x0403 +#define USB_DEVICE_ID_GTCO_404 0x0404 +#define USB_DEVICE_ID_GTCO_404 0x0405 +#define USB_DEVICE_ID_GTCO_500 0x0500 +#define USB_DEVICE_ID_GTCO_501 0x0501 +#define USB_DEVICE_ID_GTCO_502 0x0502 +#define USB_DEVICE_ID_GTCO_503 0x0503 +#define USB_DEVICE_ID_GTCO_504 0x0504 +#define USB_DEVICE_ID_GTCO_1000 0x1000 +#define USB_DEVICE_ID_GTCO_1001 0x1001 +#define USB_DEVICE_ID_GTCO_1002 0x1002 +#define USB_DEVICE_ID_GTCO_1003 0x1003 +#define USB_DEVICE_ID_GTCO_1004 0x1004 +#define USB_DEVICE_ID_GTCO_1005 0x1005 +#define USB_DEVICE_ID_GTCO_1006 0x1006 + #define USB_VENDOR_ID_WACOM 0x056a #define USB_DEVICE_ID_WACOM_PENPARTNER 0x0000 #define USB_DEVICE_ID_WACOM_GRAPHIRE 0x0010 @@ -1588,6 +1635,51 @@ static const struct hid_blacklist { { USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_8_IF_KIT, HID_QUIRK_IGNORE }, { USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE, HID_QUIRK_IGNORE }, { USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_90, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_100, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_101, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_103, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_104, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_105, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_106, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_107, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_108, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_200, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_201, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_202, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_203, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_204, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_205, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_206, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_207, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_300, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_301, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_302, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_303, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_304, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_305, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_306, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_307, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_308, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_309, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_400, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_401, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_402, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_403, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_404, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_404, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_500, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_501, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_502, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_503, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_504, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1000, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1001, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1002, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1003, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1004, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1005, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1006, HID_QUIRK_IGNORE }, { USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO, HID_QUIRK_IGNORE }, { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY, HID_QUIRK_IGNORE }, { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY, HID_QUIRK_IGNORE }, From ea186651d5a7b822c855de5de505c5c19812bf0b Mon Sep 17 00:00:00 2001 From: Ping Cheng Date: Fri, 14 Jul 2006 16:50:04 -0700 Subject: [PATCH 455/488] USB: add all wacom device to hid-core.c blacklist Add all Wacom devices to hid-core.c blacklist Signed-off-by: Ping Cheng Signed-off-by: Greg Kroah-Hartman --- drivers/usb/input/hid-core.c | 57 +++--------------------------------- 1 file changed, 4 insertions(+), 53 deletions(-) diff --git a/drivers/usb/input/hid-core.c b/drivers/usb/input/hid-core.c index 59a92149a0dc..acb24c6219d9 100644 --- a/drivers/usb/input/hid-core.c +++ b/drivers/usb/input/hid-core.c @@ -1459,16 +1459,6 @@ void hid_init_reports(struct hid_device *hid) #define USB_DEVICE_ID_GTCO_1006 0x1006 #define USB_VENDOR_ID_WACOM 0x056a -#define USB_DEVICE_ID_WACOM_PENPARTNER 0x0000 -#define USB_DEVICE_ID_WACOM_GRAPHIRE 0x0010 -#define USB_DEVICE_ID_WACOM_INTUOS 0x0020 -#define USB_DEVICE_ID_WACOM_PL 0x0030 -#define USB_DEVICE_ID_WACOM_INTUOS2 0x0040 -#define USB_DEVICE_ID_WACOM_VOLITO 0x0060 -#define USB_DEVICE_ID_WACOM_PTU 0x0003 -#define USB_DEVICE_ID_WACOM_INTUOS3 0x00B0 -#define USB_DEVICE_ID_WACOM_CINTIQ 0x003F -#define USB_DEVICE_ID_WACOM_DTF 0x00C0 #define USB_VENDOR_ID_ACECAD 0x0460 #define USB_DEVICE_ID_ACECAD_FLAIR 0x0004 @@ -1709,49 +1699,6 @@ static const struct hid_blacklist { { USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP, HID_QUIRK_IGNORE }, { USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP, HID_QUIRK_IGNORE }, { USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PENPARTNER, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE + 1, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE + 2, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE + 3, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE + 4, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS + 1, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS + 2, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS + 3, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS + 4, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 1, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 2, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 3, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 4, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 5, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 7, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 8, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 9, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 1, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 2, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 3, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 4, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 5, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 7, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_VOLITO, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_VOLITO + 1, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_VOLITO + 2, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_VOLITO + 3, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_VOLITO + 4, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE + 5, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE + 6, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PTU, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS3, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS3 + 1, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS3 + 2, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS3 + 3, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS3 + 4, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS3 + 5, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_CINTIQ, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_DTF, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_DTF + 3, HID_QUIRK_IGNORE }, { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20, HID_QUIRK_IGNORE }, { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20, HID_QUIRK_IGNORE }, { USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K, HID_QUIRK_IGNORE }, @@ -1870,6 +1817,10 @@ static struct hid_device *usb_hid_configure(struct usb_interface *intf) char *rdesc; int n, len, insize = 0; + /* Ignore all Wacom devices */ + if (dev->descriptor.idVendor == USB_VENDOR_ID_WACOM) + return NULL; + for (n = 0; hid_blacklist[n].idVendor; n++) if ((hid_blacklist[n].idVendor == le16_to_cpu(dev->descriptor.idVendor)) && (hid_blacklist[n].idProduct == le16_to_cpu(dev->descriptor.idProduct))) From 789851cf0005b946557340c9bbfc7728906cdbfc Mon Sep 17 00:00:00 2001 From: David Brownell Date: Mon, 21 Aug 2006 15:26:38 -0700 Subject: [PATCH 456/488] usb gadget: g_ether spinlock recursion fix The new spinlock debug code turned up a spinlock recursion bug in the Ethernet gadget driver on a disconnect path; it would show up with any UDC driver where the cancellation of active requests was synchronous, rather than e.g. delayed until a controller's completion IRQ. That recursion is fixed here by creating and using a new spinlock to protect the relevant lists. Signed-off-by: David Brownell Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/ether.c | 45 ++++++++++++++++++++++++++------------ 1 file changed, 31 insertions(+), 14 deletions(-) diff --git a/drivers/usb/gadget/ether.c b/drivers/usb/gadget/ether.c index 4fe1bec1c255..30299c620d97 100644 --- a/drivers/usb/gadget/ether.c +++ b/drivers/usb/gadget/ether.c @@ -117,6 +117,8 @@ struct eth_dev { struct usb_ep *in_ep, *out_ep, *status_ep; const struct usb_endpoint_descriptor *in, *out, *status; + + spinlock_t req_lock; struct list_head tx_reqs, rx_reqs; struct net_device *net; @@ -1066,21 +1068,31 @@ static void eth_reset_config (struct eth_dev *dev) */ if (dev->in) { usb_ep_disable (dev->in_ep); + spin_lock(&dev->req_lock); while (likely (!list_empty (&dev->tx_reqs))) { req = container_of (dev->tx_reqs.next, struct usb_request, list); list_del (&req->list); + + spin_unlock(&dev->req_lock); usb_ep_free_request (dev->in_ep, req); + spin_lock(&dev->req_lock); } + spin_unlock(&dev->req_lock); } if (dev->out) { usb_ep_disable (dev->out_ep); + spin_lock(&dev->req_lock); while (likely (!list_empty (&dev->rx_reqs))) { req = container_of (dev->rx_reqs.next, struct usb_request, list); list_del (&req->list); + + spin_unlock(&dev->req_lock); usb_ep_free_request (dev->out_ep, req); + spin_lock(&dev->req_lock); } + spin_unlock(&dev->req_lock); } if (dev->status) { @@ -1659,9 +1671,9 @@ enomem: if (retval) { DEBUG (dev, "rx submit --> %d\n", retval); dev_kfree_skb_any (skb); - spin_lock (&dev->lock); + spin_lock(&dev->req_lock); list_add (&req->list, &dev->rx_reqs); - spin_unlock (&dev->lock); + spin_unlock(&dev->req_lock); } return retval; } @@ -1730,8 +1742,9 @@ quiesce: dev_kfree_skb_any (skb); if (!netif_running (dev->net)) { clean: - /* nobody reading rx_reqs, so no dev->lock */ + spin_lock(&dev->req_lock); list_add (&req->list, &dev->rx_reqs); + spin_unlock(&dev->req_lock); req = NULL; } if (req) @@ -1782,15 +1795,18 @@ static int alloc_requests (struct eth_dev *dev, unsigned n, gfp_t gfp_flags) { int status; + spin_lock(&dev->req_lock); status = prealloc (&dev->tx_reqs, dev->in_ep, n, gfp_flags); if (status < 0) goto fail; status = prealloc (&dev->rx_reqs, dev->out_ep, n, gfp_flags); if (status < 0) goto fail; - return 0; + goto done; fail: DEBUG (dev, "can't alloc requests\n"); +done: + spin_unlock(&dev->req_lock); return status; } @@ -1800,21 +1816,21 @@ static void rx_fill (struct eth_dev *dev, gfp_t gfp_flags) unsigned long flags; /* fill unused rxq slots with some skb */ - spin_lock_irqsave (&dev->lock, flags); + spin_lock_irqsave(&dev->req_lock, flags); while (!list_empty (&dev->rx_reqs)) { req = container_of (dev->rx_reqs.next, struct usb_request, list); list_del_init (&req->list); - spin_unlock_irqrestore (&dev->lock, flags); + spin_unlock_irqrestore(&dev->req_lock, flags); if (rx_submit (dev, req, gfp_flags) < 0) { defer_kevent (dev, WORK_RX_MEMORY); return; } - spin_lock_irqsave (&dev->lock, flags); + spin_lock_irqsave(&dev->req_lock, flags); } - spin_unlock_irqrestore (&dev->lock, flags); + spin_unlock_irqrestore(&dev->req_lock, flags); } static void eth_work (void *_dev) @@ -1848,9 +1864,9 @@ static void tx_complete (struct usb_ep *ep, struct usb_request *req) } dev->stats.tx_packets++; - spin_lock (&dev->lock); + spin_lock(&dev->req_lock); list_add (&req->list, &dev->tx_reqs); - spin_unlock (&dev->lock); + spin_unlock(&dev->req_lock); dev_kfree_skb_any (skb); atomic_dec (&dev->tx_qlen); @@ -1896,12 +1912,12 @@ static int eth_start_xmit (struct sk_buff *skb, struct net_device *net) /* ignores USB_CDC_PACKET_TYPE_DIRECTED */ } - spin_lock_irqsave (&dev->lock, flags); + spin_lock_irqsave(&dev->req_lock, flags); req = container_of (dev->tx_reqs.next, struct usb_request, list); list_del (&req->list); if (list_empty (&dev->tx_reqs)) netif_stop_queue (net); - spin_unlock_irqrestore (&dev->lock, flags); + spin_unlock_irqrestore(&dev->req_lock, flags); /* no buffer copies needed, unless the network stack did it * or the hardware can't use skb buffers. @@ -1955,11 +1971,11 @@ static int eth_start_xmit (struct sk_buff *skb, struct net_device *net) drop: dev->stats.tx_dropped++; dev_kfree_skb_any (skb); - spin_lock_irqsave (&dev->lock, flags); + spin_lock_irqsave(&dev->req_lock, flags); if (list_empty (&dev->tx_reqs)) netif_start_queue (net); list_add (&req->list, &dev->tx_reqs); - spin_unlock_irqrestore (&dev->lock, flags); + spin_unlock_irqrestore(&dev->req_lock, flags); } return 0; } @@ -2378,6 +2394,7 @@ autoconf_fail: return status; dev = netdev_priv(net); spin_lock_init (&dev->lock); + spin_lock_init (&dev->req_lock); INIT_WORK (&dev->work, eth_work, dev); INIT_LIST_HEAD (&dev->tx_reqs); INIT_LIST_HEAD (&dev->rx_reqs); From 7ceb932f489e86b555258e5f7d7f061f9c1863eb Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Mon, 21 Aug 2006 11:58:50 -0400 Subject: [PATCH 457/488] UHCI: don't stop at an Iso error Unlike other sorts of endpoint queues, Isochronous queues don't stop when an error is encountered. This patch (as772) fixes the scanning routine in uhci-hcd, to make it keep on going when it finds an Iso error. Signed-off-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/uhci-q.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/host/uhci-q.c b/drivers/usb/host/uhci-q.c index 66c3f61bc9d1..026dad06f82b 100644 --- a/drivers/usb/host/uhci-q.c +++ b/drivers/usb/host/uhci-q.c @@ -1348,7 +1348,7 @@ static void uhci_scan_qh(struct uhci_hcd *uhci, struct uhci_qh *qh, } uhci_giveback_urb(uhci, qh, urb, regs); - if (status < 0) + if (status < 0 && qh->type != USB_ENDPOINT_XFER_ISOC) break; } From f84c749f1ce6a54b84b098f5fa53a01686401fac Mon Sep 17 00:00:00 2001 From: Phil Dibowitz Date: Wed, 23 Aug 2006 21:11:01 -0700 Subject: [PATCH 458/488] USB Storage: Remove the finecam3 unusual_devs entry This patch removes the Kyocera Finecam L3 entry in unusual devices originally submitted by Michael Krauth and Alessandro Fracchetti given that Gerriet finds he doesn't need it and Alessandro confirms it isn't needed anymore as well. Signed-off-by: Phil Dibowitz Signed-off-by: Greg Kroah-Hartman --- drivers/usb/storage/unusual_devs.h | 10 ---------- 1 file changed, 10 deletions(-) diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h index 43ed6b19535d..793045167af7 100644 --- a/drivers/usb/storage/unusual_devs.h +++ b/drivers/usb/storage/unusual_devs.h @@ -241,16 +241,6 @@ UNUSUAL_DEV( 0x0482, 0x0103, 0x0100, 0x0100, "Finecam S5", US_SC_DEVICE, US_PR_DEVICE, NULL, US_FL_FIX_INQUIRY), -/* Patch for Kyocera Finecam L3 - * Submitted by Michael Krauth - * and Alessandro Fracchetti - */ -UNUSUAL_DEV( 0x0482, 0x0105, 0x0100, 0x0100, - "Kyocera", - "Finecam L3", - US_SC_SCSI, US_PR_BULK, NULL, - US_FL_FIX_INQUIRY), - /* Reported by Paul Stewart * This entry is needed because the device reports Sub=ff */ UNUSUAL_DEV( 0x04a4, 0x0004, 0x0001, 0x0001, From c9c770ed1fe2698c9a3b18e5fc12d1262e099c0c Mon Sep 17 00:00:00 2001 From: Phil Dibowitz Date: Sun, 27 Aug 2006 23:54:37 -0700 Subject: [PATCH 459/488] USB Storage: unusual_devs.h for Sony Ericsson M600i This entry was sent in by Emmanuel Vasilakis , turned into a patch by yours truly. Signed-off-by: Phil Dibowitz Signed-off-by: Greg Kroah-Hartman --- drivers/usb/storage/unusual_devs.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h index 793045167af7..b130e170b4a8 100644 --- a/drivers/usb/storage/unusual_devs.h +++ b/drivers/usb/storage/unusual_devs.h @@ -1254,6 +1254,13 @@ UNUSUAL_DEV( 0x0fce, 0xd008, 0x0000, 0x0000, US_SC_DEVICE, US_PR_DEVICE, NULL, US_FL_NO_WP_DETECT ), +/* Reported by Emmanuel Vasilakis */ +UNUSUAL_DEV( 0x0fce, 0xe031, 0x0000, 0x0000, + "Sony Ericsson", + "M600i", + US_SC_DEVICE, US_PR_DEVICE, NULL, + US_FL_FIX_CAPACITY ), + /* Reported by Kevin Cernekee * Tested on hardware version 1.10. * Entry is needed only for the initializer function override. From eff674a514bd3f59e0cae9b843e0665b576a5ed8 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Mon, 14 Aug 2006 23:11:09 -0700 Subject: [PATCH 460/488] USB: rtl8150_disconnect() needs tasklet_kill() We need to wait until any currently-running handler has completed. Fixes an unplug-time oops reported by "Miles Lane" . Cc: "Petko Manolov" Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- drivers/usb/net/rtl8150.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/usb/net/rtl8150.c b/drivers/usb/net/rtl8150.c index bd09232ce13c..a72685b96061 100644 --- a/drivers/usb/net/rtl8150.c +++ b/drivers/usb/net/rtl8150.c @@ -972,6 +972,7 @@ static void rtl8150_disconnect(struct usb_interface *intf) if (dev) { set_bit(RTL8150_UNPLUG, &dev->flags); tasklet_disable(&dev->tl); + tasklet_kill(&dev->tl); unregister_netdev(dev->netdev); unlink_all_urbs(dev); free_all_urbs(dev); From 1ae4f9ba84b94b85d995a6ae0064b869ff15b080 Mon Sep 17 00:00:00 2001 From: Mark Hindley Date: Mon, 28 Aug 2006 20:43:25 +0100 Subject: [PATCH 461/488] USB: Add VIA quirk fixup for VT8235 usb2 Patch to add VIA PCI quirk for Enhanced/Extended USB on VT8235 southbridge. It is needed in order to use EHCI/USB 2.0 with ACPI. Without it IRQs are not routed correctly, you get an "Unlink after no-IRQ?" error and the device is unusable. I belive this could also be a fix for Bugzilla Bug 5835. Signed-off-by: Mark Hindley Signed-off-by: Greg Kroah-Hartman --- drivers/pci/quirks.c | 1 + include/linux/pci_ids.h | 1 + 2 files changed, 2 insertions(+) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 73177429fe74..17e709e7d72a 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -667,6 +667,7 @@ DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_0, quirk_vi DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_1, quirk_via_irq); DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_2, quirk_via_irq); DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_via_irq); +DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235_USB_2, quirk_via_irq); DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_irq); DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_via_irq); DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_5, quirk_via_irq); diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index 4c2839eab7f4..c91164ea3dec 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -1292,6 +1292,7 @@ #define PCI_DEVICE_ID_VIA_8367_0 0x3099 #define PCI_DEVICE_ID_VIA_8653_0 0x3101 #define PCI_DEVICE_ID_VIA_8622 0x3102 +#define PCI_DEVICE_ID_VIA_8235_USB_2 0x3104 #define PCI_DEVICE_ID_VIA_8233C_0 0x3109 #define PCI_DEVICE_ID_VIA_8361 0x3112 #define PCI_DEVICE_ID_VIA_XM266 0x3116 From 5df3d8b53f436a26fad8077b1ceb39a7708e95ec Mon Sep 17 00:00:00 2001 From: Nobuhiro Iwamatsu Date: Tue, 29 Aug 2006 10:47:41 +0300 Subject: [PATCH 462/488] USB: Support for ELECOM LD-USB20 in pegasus This patch is support LD-USB20 of the USB LAN device. http://www2.elecom.co.jp/products/LD-USB20.html ( Japanese only ) I am using this device. And, I confirmed work by using this patch. Signed-off-by: Nobuhiro Iwamatsu Acked-by: Petko Manolov Signed-off-by: Greg Kroah-Hartman --- drivers/usb/net/pegasus.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/usb/net/pegasus.h b/drivers/usb/net/pegasus.h index a54752ce1493..006438069b66 100644 --- a/drivers/usb/net/pegasus.h +++ b/drivers/usb/net/pegasus.h @@ -131,6 +131,7 @@ struct usb_eth_dev { #define VENDOR_COREGA 0x07aa #define VENDOR_DLINK 0x2001 #define VENDOR_ELCON 0x0db7 +#define VENDOR_ELECOM 0x056e #define VENDOR_ELSA 0x05cc #define VENDOR_GIGABYTE 0x1044 #define VENDOR_HAWKING 0x0e66 @@ -233,6 +234,8 @@ PEGASUS_DEV( "D-Link DSB-650", VENDOR_DLINK, 0xabc1, DEFAULT_GPIO_RESET ) PEGASUS_DEV( "GOLDPFEIL USB Adapter", VENDOR_ELCON, 0x0002, DEFAULT_GPIO_RESET | PEGASUS_II | HAS_HOME_PNA ) +PEGASUS_DEV( "ELECOM USB Ethernet LD-USB20", VENDOR_ELECOM, 0x4010, + DEFAULT_GPIO_RESET | PEGASUS_II ) PEGASUS_DEV( "EasiDock Ethernet", VENDOR_MOBILITY, 0x0304, DEFAULT_GPIO_RESET ) PEGASUS_DEV( "Elsa Micolink USB2Ethernet", VENDOR_ELSA, 0x3000, From db59b464f8708cdba857f16b183cff0b7466d6b5 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Thu, 31 Aug 2006 14:18:39 -0400 Subject: [PATCH 463/488] uhci-hcd: fix list access bug When skipping to the last TD of an URB, go to the _last_ entry in the list instead of the _first_ entry (as780). This fixes Bugzilla #6747 and possibly others. Signed-off-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/uhci-q.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/host/uhci-q.c b/drivers/usb/host/uhci-q.c index 026dad06f82b..431e8f31f1a9 100644 --- a/drivers/usb/host/uhci-q.c +++ b/drivers/usb/host/uhci-q.c @@ -372,7 +372,7 @@ static void uhci_fixup_toggles(struct uhci_qh *qh, int skip_first) * need to change any toggles in this URB */ td = list_entry(urbp->td_list.next, struct uhci_td, list); if (toggle > 1 || uhci_toggle(td_token(td)) == toggle) { - td = list_entry(urbp->td_list.next, struct uhci_td, + td = list_entry(urbp->td_list.prev, struct uhci_td, list); toggle = uhci_toggle(td_token(td)) ^ 1; From a302eb4e4602d6444ae75a0e516fb2f2c62d6642 Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Thu, 31 Aug 2006 21:27:34 -0700 Subject: [PATCH 464/488] [PATCH] ZVC: Overstep counters Increments and decrements are usually grouped rather than mixed. We can optimize the inc and dec functions for that case. Increment and decrement the counters by 50% more than the threshold in those cases and set the differential accordingly. This decreases the need to update the atomic counters. The idea came originally from Andrew Morton. The overstepping alone was sufficient to address the contention issue found when updating the global and the per zone counters from 160 processors. Also remove some code in dec_zone_page_state. Signed-off-by: Christoph Lameter Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/vmstat.c | 20 +++++--------------- 1 file changed, 5 insertions(+), 15 deletions(-) diff --git a/mm/vmstat.c b/mm/vmstat.c index dfdf24133901..3799a0f7543a 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -190,8 +190,8 @@ static void __inc_zone_state(struct zone *zone, enum zone_stat_item item) (*p)++; if (unlikely(*p > STAT_THRESHOLD)) { - zone_page_state_add(*p, zone, item); - *p = 0; + zone_page_state_add(*p + STAT_THRESHOLD / 2, zone, item); + *p = -STAT_THRESHOLD / 2; } } @@ -209,8 +209,8 @@ void __dec_zone_page_state(struct page *page, enum zone_stat_item item) (*p)--; if (unlikely(*p < -STAT_THRESHOLD)) { - zone_page_state_add(*p, zone, item); - *p = 0; + zone_page_state_add(*p - STAT_THRESHOLD / 2, zone, item); + *p = STAT_THRESHOLD /2; } } EXPORT_SYMBOL(__dec_zone_page_state); @@ -239,19 +239,9 @@ EXPORT_SYMBOL(inc_zone_page_state); void dec_zone_page_state(struct page *page, enum zone_stat_item item) { unsigned long flags; - struct zone *zone; - s8 *p; - zone = page_zone(page); local_irq_save(flags); - p = diff_pointer(zone, item); - - (*p)--; - - if (unlikely(*p < -STAT_THRESHOLD)) { - zone_page_state_add(*p, zone, item); - *p = 0; - } + __dec_zone_page_state(page, item); local_irq_restore(flags); } EXPORT_SYMBOL(dec_zone_page_state); From df9ecaba3f152d1ea79f2a5e0b87505e03f47590 Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Thu, 31 Aug 2006 21:27:35 -0700 Subject: [PATCH 465/488] [PATCH] ZVC: Scale thresholds depending on the size of the system The ZVC counter update threshold is currently set to a fixed value of 32. This patch sets up the threshold depending on the number of processors and the sizes of the zones in the system. With the current threshold of 32, I was able to observe slight contention when more than 130-140 processors concurrently updated the counters. The contention vanished when I either increased the threshold to 64 or used Andrew's idea of overstepping the interval (see ZVC overstep patch). However, we saw contention again at 220-230 processors. So we need higher values for larger systems. But the current default is already a bit of an overkill for smaller systems. Some systems have tiny zones where precision matters. For example i386 and x86_64 have 16M DMA zones and either 900M ZONE_NORMAL or ZONE_DMA32. These are even present on SMP and NUMA systems. The patch here sets up a threshold based on the number of processors in the system and the size of the zone that these counters are used for. The threshold should grow logarithmically, so we use fls() as an easy approximation. Results of tests on a system with 1024 processors (4TB RAM) The following output is from a test allocating 1GB of memory concurrently on each processor (Forking the process. So contention on mmap_sem and the pte locks is not a factor): X MIN TYPE: CPUS WALL WALL SYS USER TOTCPU fork 1 0.552 0.552 0.540 0.012 0.552 fork 4 0.552 0.548 2.164 0.036 2.200 fork 16 0.564 0.548 8.812 0.164 8.976 fork 128 0.580 0.572 72.204 1.208 73.412 fork 256 1.300 0.660 310.400 2.160 312.560 fork 512 3.512 0.696 1526.836 4.816 1531.652 fork 1020 20.024 0.700 17243.176 6.688 17249.863 So a threshold of 32 is fine up to 128 processors. At 256 processors contention becomes a factor. Overstepping the counter (earlier patch) improves the numbers a bit: fork 4 0.552 0.548 2.164 0.040 2.204 fork 16 0.552 0.548 8.640 0.148 8.788 fork 128 0.556 0.548 69.676 0.956 70.632 fork 256 0.876 0.636 212.468 2.108 214.576 fork 512 2.276 0.672 997.324 4.260 1001.584 fork 1020 13.564 0.680 11586.436 6.088 11592.523 Still contention at 512 and 1020. Contention at 1020 is down by a third. 256 still has a slight bit of contention. After this patch the counter threshold will be set to 125 which reduces contention significantly: fork 128 0.560 0.548 69.776 0.932 70.708 fork 256 0.636 0.556 143.460 2.036 145.496 fork 512 0.640 0.548 284.244 4.236 288.480 fork 1020 1.500 0.588 1326.152 8.892 1335.044 [akpm@osdl.org: !SMP build fix] Signed-off-by: Christoph Lameter Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mmzone.h | 1 + mm/vmstat.c | 139 +++++++++++++++++++++++++++++++++++------ 2 files changed, 120 insertions(+), 20 deletions(-) diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 656b588a9f96..f45163c528e8 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -77,6 +77,7 @@ struct per_cpu_pages { struct per_cpu_pageset { struct per_cpu_pages pcp[2]; /* 0: hot. 1: cold */ #ifdef CONFIG_SMP + s8 stat_threshold; s8 vm_stat_diff[NR_VM_ZONE_STAT_ITEMS]; #endif } ____cacheline_aligned_in_smp; diff --git a/mm/vmstat.c b/mm/vmstat.c index 3799a0f7543a..c1b5f4106b38 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -12,6 +12,7 @@ #include #include #include +#include void __get_zone_counts(unsigned long *active, unsigned long *inactive, unsigned long *free, struct pglist_data *pgdat) @@ -114,17 +115,72 @@ EXPORT_SYMBOL(vm_stat); #ifdef CONFIG_SMP -#define STAT_THRESHOLD 32 +static int calculate_threshold(struct zone *zone) +{ + int threshold; + int mem; /* memory in 128 MB units */ + + /* + * The threshold scales with the number of processors and the amount + * of memory per zone. More memory means that we can defer updates for + * longer, more processors could lead to more contention. + * fls() is used to have a cheap way of logarithmic scaling. + * + * Some sample thresholds: + * + * Threshold Processors (fls) Zonesize fls(mem+1) + * ------------------------------------------------------------------ + * 8 1 1 0.9-1 GB 4 + * 16 2 2 0.9-1 GB 4 + * 20 2 2 1-2 GB 5 + * 24 2 2 2-4 GB 6 + * 28 2 2 4-8 GB 7 + * 32 2 2 8-16 GB 8 + * 4 2 2 <128M 1 + * 30 4 3 2-4 GB 5 + * 48 4 3 8-16 GB 8 + * 32 8 4 1-2 GB 4 + * 32 8 4 0.9-1GB 4 + * 10 16 5 <128M 1 + * 40 16 5 900M 4 + * 70 64 7 2-4 GB 5 + * 84 64 7 4-8 GB 6 + * 108 512 9 4-8 GB 6 + * 125 1024 10 8-16 GB 8 + * 125 1024 10 16-32 GB 9 + */ + + mem = zone->present_pages >> (27 - PAGE_SHIFT); + + threshold = 2 * fls(num_online_cpus()) * (1 + fls(mem)); + + /* + * Maximum threshold is 125 + */ + threshold = min(125, threshold); + + return threshold; +} /* - * Determine pointer to currently valid differential byte given a zone and - * the item number. - * - * Preemption must be off + * Refresh the thresholds for each zone. */ -static inline s8 *diff_pointer(struct zone *zone, enum zone_stat_item item) +static void refresh_zone_stat_thresholds(void) { - return &zone_pcp(zone, smp_processor_id())->vm_stat_diff[item]; + struct zone *zone; + int cpu; + int threshold; + + for_each_zone(zone) { + + if (!zone->present_pages) + continue; + + threshold = calculate_threshold(zone); + + for_each_online_cpu(cpu) + zone_pcp(zone, cpu)->stat_threshold = threshold; + } } /* @@ -133,17 +189,16 @@ static inline s8 *diff_pointer(struct zone *zone, enum zone_stat_item item) void __mod_zone_page_state(struct zone *zone, enum zone_stat_item item, int delta) { - s8 *p; + struct per_cpu_pageset *pcp = zone_pcp(zone, smp_processor_id()); + s8 *p = pcp->vm_stat_diff + item; long x; - p = diff_pointer(zone, item); x = delta + *p; - if (unlikely(x > STAT_THRESHOLD || x < -STAT_THRESHOLD)) { + if (unlikely(x > pcp->stat_threshold || x < -pcp->stat_threshold)) { zone_page_state_add(x, zone, item); x = 0; } - *p = x; } EXPORT_SYMBOL(__mod_zone_page_state); @@ -172,10 +227,12 @@ EXPORT_SYMBOL(mod_zone_page_state); * No overflow check is necessary and therefore the differential can be * incremented or decremented in place which may allow the compilers to * generate better code. - * * The increment or decrement is known and therefore one boundary check can * be omitted. * + * NOTE: These functions are very performance sensitive. Change only + * with care. + * * Some processors have inc/dec instructions that are atomic vs an interrupt. * However, the code must first determine the differential location in a zone * based on the processor number and then inc/dec the counter. There is no @@ -185,13 +242,16 @@ EXPORT_SYMBOL(mod_zone_page_state); */ static void __inc_zone_state(struct zone *zone, enum zone_stat_item item) { - s8 *p = diff_pointer(zone, item); + struct per_cpu_pageset *pcp = zone_pcp(zone, smp_processor_id()); + s8 *p = pcp->vm_stat_diff + item; (*p)++; - if (unlikely(*p > STAT_THRESHOLD)) { - zone_page_state_add(*p + STAT_THRESHOLD / 2, zone, item); - *p = -STAT_THRESHOLD / 2; + if (unlikely(*p > pcp->stat_threshold)) { + int overstep = pcp->stat_threshold / 2; + + zone_page_state_add(*p + overstep, zone, item); + *p = -overstep; } } @@ -204,13 +264,16 @@ EXPORT_SYMBOL(__inc_zone_page_state); void __dec_zone_page_state(struct page *page, enum zone_stat_item item) { struct zone *zone = page_zone(page); - s8 *p = diff_pointer(zone, item); + struct per_cpu_pageset *pcp = zone_pcp(zone, smp_processor_id()); + s8 *p = pcp->vm_stat_diff + item; (*p)--; - if (unlikely(*p < -STAT_THRESHOLD)) { - zone_page_state_add(*p - STAT_THRESHOLD / 2, zone, item); - *p = STAT_THRESHOLD /2; + if (unlikely(*p < - pcp->stat_threshold)) { + int overstep = pcp->stat_threshold / 2; + + zone_page_state_add(*p - overstep, zone, item); + *p = overstep; } } EXPORT_SYMBOL(__dec_zone_page_state); @@ -515,6 +578,10 @@ static int zoneinfo_show(struct seq_file *m, void *arg) pageset->pcp[j].high, pageset->pcp[j].batch); } +#ifdef CONFIG_SMP + seq_printf(m, "\n vm stats threshold: %d", + pageset->stat_threshold); +#endif } seq_printf(m, "\n all_unreclaimable: %u" @@ -603,3 +670,35 @@ struct seq_operations vmstat_op = { #endif /* CONFIG_PROC_FS */ +#ifdef CONFIG_SMP +/* + * Use the cpu notifier to insure that the thresholds are recalculated + * when necessary. + */ +static int __cpuinit vmstat_cpuup_callback(struct notifier_block *nfb, + unsigned long action, + void *hcpu) +{ + switch (action) { + case CPU_UP_PREPARE: + case CPU_UP_CANCELED: + case CPU_DEAD: + refresh_zone_stat_thresholds(); + break; + default: + break; + } + return NOTIFY_OK; +} + +static struct notifier_block __cpuinitdata vmstat_notifier = + { &vmstat_cpuup_callback, NULL, 0 }; + +int __init setup_vmstat(void) +{ + refresh_zone_stat_thresholds(); + register_cpu_notifier(&vmstat_notifier); + return 0; +} +module_init(setup_vmstat) +#endif From ddac7c7e3a0fe9cfdcef0de24476b8d69f8cf3e7 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Thu, 31 Aug 2006 21:27:36 -0700 Subject: [PATCH 466/488] [PATCH] md: Fix issues with referencing rdev in md/raid1 We need to be careful when referencing mirrors[i].rdev. It can disappear under us at various times. So: fix a couple of problem places. comment a couple of non-problem places move an 'atomic_add' which deferences rdev down a little way to some where where it is sure to not be NULL. Signed-off-by: Neil Brown Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/md/raid1.c | 57 ++++++++++++++++++++++++++++------------------ 1 file changed, 35 insertions(+), 22 deletions(-) diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 87bfe9e7d8ca..3b4d69c05623 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -930,10 +930,13 @@ static void status(struct seq_file *seq, mddev_t *mddev) seq_printf(seq, " [%d/%d] [", conf->raid_disks, conf->working_disks); - for (i = 0; i < conf->raid_disks; i++) + rcu_read_lock(); + for (i = 0; i < conf->raid_disks; i++) { + mdk_rdev_t *rdev = rcu_dereference(conf->mirrors[i].rdev); seq_printf(seq, "%s", - conf->mirrors[i].rdev && - test_bit(In_sync, &conf->mirrors[i].rdev->flags) ? "U" : "_"); + rdev && test_bit(In_sync, &rdev->flags) ? "U" : "_"); + } + rcu_read_unlock(); seq_printf(seq, "]"); } @@ -975,7 +978,6 @@ static void error(mddev_t *mddev, mdk_rdev_t *rdev) static void print_conf(conf_t *conf) { int i; - mirror_info_t *tmp; printk("RAID1 conf printout:\n"); if (!conf) { @@ -985,14 +987,17 @@ static void print_conf(conf_t *conf) printk(" --- wd:%d rd:%d\n", conf->working_disks, conf->raid_disks); + rcu_read_lock(); for (i = 0; i < conf->raid_disks; i++) { char b[BDEVNAME_SIZE]; - tmp = conf->mirrors + i; - if (tmp->rdev) + mdk_rdev_t *rdev = rcu_dereference(conf->mirrors[i].rdev); + if (rdev) printk(" disk %d, wo:%d, o:%d, dev:%s\n", - i, !test_bit(In_sync, &tmp->rdev->flags), !test_bit(Faulty, &tmp->rdev->flags), - bdevname(tmp->rdev->bdev,b)); + i, !test_bit(In_sync, &rdev->flags), + !test_bit(Faulty, &rdev->flags), + bdevname(rdev->bdev,b)); } + rcu_read_unlock(); } static void close_sync(conf_t *conf) @@ -1008,20 +1013,20 @@ static int raid1_spare_active(mddev_t *mddev) { int i; conf_t *conf = mddev->private; - mirror_info_t *tmp; /* * Find all failed disks within the RAID1 configuration - * and mark them readable + * and mark them readable. + * Called under mddev lock, so rcu protection not needed. */ for (i = 0; i < conf->raid_disks; i++) { - tmp = conf->mirrors + i; - if (tmp->rdev - && !test_bit(Faulty, &tmp->rdev->flags) - && !test_bit(In_sync, &tmp->rdev->flags)) { + mdk_rdev_t *rdev = conf->mirrors[i].rdev; + if (rdev + && !test_bit(Faulty, &rdev->flags) + && !test_bit(In_sync, &rdev->flags)) { conf->working_disks++; mddev->degraded--; - set_bit(In_sync, &tmp->rdev->flags); + set_bit(In_sync, &rdev->flags); } } @@ -1237,7 +1242,7 @@ static void sync_request_write(mddev_t *mddev, r1bio_t *r1_bio) /* ouch - failed to read all of that. * Try some synchronous reads of other devices to get * good data, much like with normal read errors. Only - * read into the pages we already have so they we don't + * read into the pages we already have so we don't * need to re-issue the read request. * We don't need to freeze the array, because being in an * active sync request, there is no normal IO, and @@ -1257,6 +1262,10 @@ static void sync_request_write(mddev_t *mddev, r1bio_t *r1_bio) s = PAGE_SIZE >> 9; do { if (r1_bio->bios[d]->bi_end_io == end_sync_read) { + /* No rcu protection needed here devices + * can only be removed when no resync is + * active, and resync is currently active + */ rdev = conf->mirrors[d].rdev; if (sync_page_io(rdev->bdev, sect + rdev->data_offset, @@ -1463,6 +1472,11 @@ static void raid1d(mddev_t *mddev) s = PAGE_SIZE >> 9; do { + /* Note: no rcu protection needed here + * as this is synchronous in the raid1d thread + * which is the thread that might remove + * a device. If raid1d ever becomes multi-threaded.... + */ rdev = conf->mirrors[d].rdev; if (rdev && test_bit(In_sync, &rdev->flags) && @@ -1486,7 +1500,6 @@ static void raid1d(mddev_t *mddev) d = conf->raid_disks; d--; rdev = conf->mirrors[d].rdev; - atomic_add(s, &rdev->corrected_errors); if (rdev && test_bit(In_sync, &rdev->flags)) { if (sync_page_io(rdev->bdev, @@ -1509,9 +1522,11 @@ static void raid1d(mddev_t *mddev) s<<9, conf->tmppage, READ) == 0) /* Well, this device is dead */ md_error(mddev, rdev); - else + else { + atomic_add(s, &rdev->corrected_errors); printk(KERN_INFO "raid1:%s: read error corrected (%d sectors at %llu on %s)\n", mdname(mddev), s, (unsigned long long)(sect + rdev->data_offset), bdevname(rdev->bdev, b)); + } } } } else { @@ -1787,19 +1802,17 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i for (i=0; iraid_disks; i++) { bio = r1_bio->bios[i]; if (bio->bi_end_io == end_sync_read) { - md_sync_acct(conf->mirrors[i].rdev->bdev, nr_sectors); + md_sync_acct(bio->bi_bdev, nr_sectors); generic_make_request(bio); } } } else { atomic_set(&r1_bio->remaining, 1); bio = r1_bio->bios[r1_bio->read_disk]; - md_sync_acct(conf->mirrors[r1_bio->read_disk].rdev->bdev, - nr_sectors); + md_sync_acct(bio->bi_bdev, nr_sectors); generic_make_request(bio); } - return nr_sectors; } From 202af6d50155f8594ba01d8e0a54d77facc0152a Mon Sep 17 00:00:00 2001 From: Paul Fulghum Date: Thu, 31 Aug 2006 21:27:36 -0700 Subject: [PATCH 467/488] [PATCH] synclink_gt: fix receive tty error handling Fix receive tty error handling in synclink_gt driver. Adrian reported compiler warning for incorrect bit test against char variable. I determined these and other device specific error bits were incorrectly defined. Signed-off-by: Paul Fulghum Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/synclink_gt.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/char/synclink_gt.c b/drivers/char/synclink_gt.c index b2dbbdb1bf81..2f07b085536b 100644 --- a/drivers/char/synclink_gt.c +++ b/drivers/char/synclink_gt.c @@ -391,8 +391,8 @@ static MGSL_PARAMS default_params = { #define DESC_LIST_SIZE 4096 #define MASK_PARITY BIT1 -#define MASK_FRAMING BIT2 -#define MASK_BREAK BIT3 +#define MASK_FRAMING BIT0 +#define MASK_BREAK BIT14 #define MASK_OVERRUN BIT4 #define GSR 0x00 /* global status */ @@ -1800,17 +1800,17 @@ static void rx_async(struct slgt_info *info) stat = 0; - if ((status = *(p+1) & (BIT9 + BIT8))) { - if (status & BIT9) + if ((status = *(p+1) & (BIT1 + BIT0))) { + if (status & BIT1) icount->parity++; - else if (status & BIT8) + else if (status & BIT0) icount->frame++; /* discard char if tty control flags say so */ if (status & info->ignore_status_mask) continue; - if (status & BIT9) + if (status & BIT1) stat = TTY_PARITY; - else if (status & BIT8) + else if (status & BIT0) stat = TTY_FRAME; } if (tty) { From 30f3174d1c506db2c6d2c1dddc9c064e741d6b76 Mon Sep 17 00:00:00 2001 From: john stultz Date: Thu, 31 Aug 2006 21:27:37 -0700 Subject: [PATCH 468/488] [PATCH] Fix faulty HPET clocksource usage (fix for bug #7062) Apparently some systems export valid HPET addresses, but hpet_enable() fails. Then when the HPET clocksource starts up, it only checks for a valid HPET address, and the result is a system where time does not advance. See http://bugme.osdl.org/show_bug.cgi?id=7062 for details. This patch just makes sure we better check that the HPET is functional before registering the HPET clocksource. Signed-off-by: John Stultz Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/i386/kernel/hpet.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/i386/kernel/hpet.c b/arch/i386/kernel/hpet.c index c6737c35815d..17647a530b2f 100644 --- a/arch/i386/kernel/hpet.c +++ b/arch/i386/kernel/hpet.c @@ -35,7 +35,7 @@ static int __init init_hpet_clocksource(void) void __iomem* hpet_base; u64 tmp; - if (!hpet_address) + if (!is_hpet_enabled()) return -ENODEV; /* calculate the hpet address: */ From 35df17c57cecb08f0120fb18926325f1093dc429 Mon Sep 17 00:00:00 2001 From: Shailabh Nagar Date: Thu, 31 Aug 2006 21:27:38 -0700 Subject: [PATCH 469/488] [PATCH] task delay accounting fixes Cleanup allocation and freeing of tsk->delays used by delay accounting. This solves two problems reported for delay accounting: 1. oops in __delayacct_blkio_ticks http://www.uwsg.indiana.edu/hypermail/linux/kernel/0608.2/1844.html Currently tsk->delays is getting freed too early in task exit which can cause a NULL tsk->delays to get accessed via reading of /proc//stats. The patch fixes this problem by freeing tsk->delays closer to when task_struct itself is freed up. As a result, it also eliminates the use of tsk->delays_lock which was only being used (inadequately) to safeguard access to tsk->delays while a task was exiting. 2. Possible memory leak in kernel/delayacct.c http://www.uwsg.indiana.edu/hypermail/linux/kernel/0608.2/1389.html The patch cleans up tsk->delays allocations after a bad fork which was missing earlier. The patch has been tested to fix the problems listed above and stress tested with rapid calls to delay accounting's taskstats command interface (which is the other path that can access the same data, besides the /proc interface causing the oops above). Signed-off-by: Shailabh Nagar Cc: Balbir Singh Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/delayacct.h | 10 +++++++--- include/linux/sched.h | 1 - kernel/delayacct.c | 16 ---------------- kernel/exit.c | 1 - kernel/fork.c | 6 ++++-- 5 files changed, 11 insertions(+), 23 deletions(-) diff --git a/include/linux/delayacct.h b/include/linux/delayacct.h index 11487b6e7127..561e2a77805c 100644 --- a/include/linux/delayacct.h +++ b/include/linux/delayacct.h @@ -59,10 +59,14 @@ static inline void delayacct_tsk_init(struct task_struct *tsk) __delayacct_tsk_init(tsk); } -static inline void delayacct_tsk_exit(struct task_struct *tsk) +/* Free tsk->delays. Called from bad fork and __put_task_struct + * where there's no risk of tsk->delays being accessed elsewhere + */ +static inline void delayacct_tsk_free(struct task_struct *tsk) { if (tsk->delays) - __delayacct_tsk_exit(tsk); + kmem_cache_free(delayacct_cache, tsk->delays); + tsk->delays = NULL; } static inline void delayacct_blkio_start(void) @@ -101,7 +105,7 @@ static inline void delayacct_init(void) {} static inline void delayacct_tsk_init(struct task_struct *tsk) {} -static inline void delayacct_tsk_exit(struct task_struct *tsk) +static inline void delayacct_tsk_free(struct task_struct *tsk) {} static inline void delayacct_blkio_start(void) {} diff --git a/include/linux/sched.h b/include/linux/sched.h index 6674fc1e51bf..34ed0d99b1bd 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -994,7 +994,6 @@ struct task_struct { */ struct pipe_inode_info *splice_pipe; #ifdef CONFIG_TASK_DELAY_ACCT - spinlock_t delays_lock; struct task_delay_info *delays; #endif }; diff --git a/kernel/delayacct.c b/kernel/delayacct.c index 57ca3730205d..36752f124c6a 100644 --- a/kernel/delayacct.c +++ b/kernel/delayacct.c @@ -41,24 +41,11 @@ void delayacct_init(void) void __delayacct_tsk_init(struct task_struct *tsk) { - spin_lock_init(&tsk->delays_lock); - /* No need to acquire tsk->delays_lock for allocation here unless - __delayacct_tsk_init called after tsk is attached to tasklist - */ tsk->delays = kmem_cache_zalloc(delayacct_cache, SLAB_KERNEL); if (tsk->delays) spin_lock_init(&tsk->delays->lock); } -void __delayacct_tsk_exit(struct task_struct *tsk) -{ - struct task_delay_info *delays = tsk->delays; - spin_lock(&tsk->delays_lock); - tsk->delays = NULL; - spin_unlock(&tsk->delays_lock); - kmem_cache_free(delayacct_cache, delays); -} - /* * Start accounting for a delay statistic using * its starting timestamp (@start) @@ -118,8 +105,6 @@ int __delayacct_add_tsk(struct taskstats *d, struct task_struct *tsk) struct timespec ts; unsigned long t1,t2,t3; - spin_lock(&tsk->delays_lock); - /* Though tsk->delays accessed later, early exit avoids * unnecessary returning of other data */ @@ -161,7 +146,6 @@ int __delayacct_add_tsk(struct taskstats *d, struct task_struct *tsk) spin_unlock(&tsk->delays->lock); done: - spin_unlock(&tsk->delays_lock); return 0; } diff --git a/kernel/exit.c b/kernel/exit.c index dba194a8d416..a4c19a52ce46 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -908,7 +908,6 @@ fastcall NORET_TYPE void do_exit(long code) audit_free(tsk); taskstats_exit_send(tsk, tidstats, group_dead, mycpu); taskstats_exit_free(tidstats); - delayacct_tsk_exit(tsk); exit_mm(tsk); diff --git a/kernel/fork.c b/kernel/fork.c index aa36c43783cc..f9b014e3e700 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -117,6 +117,7 @@ void __put_task_struct(struct task_struct *tsk) security_task_free(tsk); free_uid(tsk->user); put_group_info(tsk->group_info); + delayacct_tsk_free(tsk); if (!profile_handoff_task(tsk)) free_task(tsk); @@ -1011,7 +1012,7 @@ static struct task_struct *copy_process(unsigned long clone_flags, retval = -EFAULT; if (clone_flags & CLONE_PARENT_SETTID) if (put_user(p->pid, parent_tidptr)) - goto bad_fork_cleanup; + goto bad_fork_cleanup_delays_binfmt; INIT_LIST_HEAD(&p->children); INIT_LIST_HEAD(&p->sibling); @@ -1277,7 +1278,8 @@ bad_fork_cleanup_policy: bad_fork_cleanup_cpuset: #endif cpuset_exit(p); -bad_fork_cleanup: +bad_fork_cleanup_delays_binfmt: + delayacct_tsk_free(p); if (p->binfmt) module_put(p->binfmt->module); bad_fork_cleanup_put_domain: From d742eae8e2655a960b2e07f3f622d78546c14031 Mon Sep 17 00:00:00 2001 From: "Bill Huey (hui" Date: Thu, 31 Aug 2006 21:27:39 -0700 Subject: [PATCH 470/488] [PATCH] xtensa: ptrace: EXIT_ZOMBIE fix We're testing the wrong task_struct field. Acked-by: Chris Zankel Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/xtensa/kernel/ptrace.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/xtensa/kernel/ptrace.c b/arch/xtensa/kernel/ptrace.c index 5064d9383963..9aea23cc0dc5 100644 --- a/arch/xtensa/kernel/ptrace.c +++ b/arch/xtensa/kernel/ptrace.c @@ -212,7 +212,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) */ case PTRACE_KILL: ret = 0; - if (child->state == EXIT_ZOMBIE) /* already dead */ + if (child->exit_state == EXIT_ZOMBIE) /* already dead */ break; child->exit_code = SIGKILL; child->ptrace &= ~PT_SINGLESTEP; From a9aa141cfc2e08470bba3b9a8328bc50ac457488 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Thu, 31 Aug 2006 21:27:40 -0700 Subject: [PATCH 471/488] [PATCH] x86: increase MAX_MP_BUSSES on default arch Vitezslav Samel reports that an HP DL380 g4 fails using the default arch due to the ISA bus having an ID of 32. It would have worked OK with the generic arch - for some reason the default arch doesn't support as many busses. So bump that up to support 256 busses, but leave it at 32 if we're building a tiny system to save a bit of memory. Cc: Vitezslav Samel Acked-by: Andi Kleen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-i386/mach-default/mach_mpspec.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/include/asm-i386/mach-default/mach_mpspec.h b/include/asm-i386/mach-default/mach_mpspec.h index 6b5dadcf1d0e..51c9a9775932 100644 --- a/include/asm-i386/mach-default/mach_mpspec.h +++ b/include/asm-i386/mach-default/mach_mpspec.h @@ -3,6 +3,10 @@ #define MAX_IRQ_SOURCES 256 +#if CONFIG_BASE_SMALL == 0 +#define MAX_MP_BUSSES 256 +#else #define MAX_MP_BUSSES 32 +#endif #endif /* __ASM_MACH_MPSPEC_H */ From ef16b5194f3233a11851180cd82eafb76542047d Mon Sep 17 00:00:00 2001 From: Olaf Hering Date: Thu, 31 Aug 2006 21:27:41 -0700 Subject: [PATCH 472/488] [PATCH] exit early in floppy_init when no floppy exists modprobe -v floppy on a Apple G5 writes incorrect stuff to dmesg: Floppy drive(s): fd0 is 2.88M The reason is that the legacy io check happens very late, when part of the floppy stuff is already initialized. check_legacy_ioport() returns either -ENODEV right away, or it walks the device-tree looking for a floppy node. Signed-off-by: Olaf Hering Acked-by: Benjamin Herrenschmidt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/block/floppy.c | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index 5109fa37c662..ad1d7065a1b2 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -4177,6 +4177,11 @@ static int __init floppy_init(void) int i, unit, drive; int err, dr; +#if defined(CONFIG_PPC_MERGE) + if (check_legacy_ioport(FDC1)) + return -ENODEV; +#endif + raw_cmd = NULL; for (dr = 0; dr < N_DRIVE; dr++) { @@ -4234,13 +4239,6 @@ static int __init floppy_init(void) } use_virtual_dma = can_use_virtual_dma & 1; -#if defined(CONFIG_PPC_MERGE) - if (check_legacy_ioport(FDC1)) { - del_timer(&fd_timeout); - err = -ENODEV; - goto out_unreg_region; - } -#endif fdc_state[0].address = FDC1; if (fdc_state[0].address == -1) { del_timer(&fd_timeout); From 290995fc3c06c0548ae303dd0b1371a8727f4fad Mon Sep 17 00:00:00 2001 From: "Ian E. Morgan" Date: Thu, 31 Aug 2006 21:27:42 -0700 Subject: [PATCH 473/488] [PATCH] SBC8360: module_param() permission fixes The last argument of module_param is permissions, not default value. Acked-by: Wim Van Sebroeck Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/watchdog/sbc8360.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/char/watchdog/sbc8360.c b/drivers/char/watchdog/sbc8360.c index 1035be5b5019..41fc6f80c493 100644 --- a/drivers/char/watchdog/sbc8360.c +++ b/drivers/char/watchdog/sbc8360.c @@ -200,7 +200,7 @@ static int wd_margin = 0xB; static int wd_multiplier = 2; static int nowayout = WATCHDOG_NOWAYOUT; -module_param(timeout, int, 27); +module_param(timeout, int, 0); MODULE_PARM_DESC(timeout, "Index into timeout table (0-63) (default=27 (60s))"); module_param(nowayout, int, 0); MODULE_PARM_DESC(nowayout, @@ -407,7 +407,7 @@ module_exit(sbc8360_exit); MODULE_AUTHOR("Ian E. Morgan "); MODULE_DESCRIPTION("SBC8360 watchdog driver"); MODULE_LICENSE("GPL"); -MODULE_VERSION("1.0"); +MODULE_VERSION("1.01"); MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); /* end of sbc8360.c */ From 43a1dd502f40fdb644402f64cd06cf8016cd9780 Mon Sep 17 00:00:00 2001 From: Henrik Kretzschmar Date: Thu, 31 Aug 2006 21:27:44 -0700 Subject: [PATCH 474/488] [PATCH] kerneldoc for handle_bad_irq() Adds the description of the parameters from handle_bad_irq(). Signed-off-by: Henrik Kretzschmar Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/irq/handle.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c index fc4e906aedbd..48a53f68af96 100644 --- a/kernel/irq/handle.c +++ b/kernel/irq/handle.c @@ -20,6 +20,11 @@ /** * handle_bad_irq - handle spurious and unhandled irqs + * @irq: the interrupt number + * @desc: description of the interrupt + * @regs: pointer to a register structure + * + * Handles spurious and unhandled IRQ's. It also prints a debugmessage. */ void fastcall handle_bad_irq(unsigned int irq, struct irq_desc *desc, struct pt_regs *regs) From a9eec55623f5aedfcef745d3a0e0f97f5d4f74be Mon Sep 17 00:00:00 2001 From: Corey Minyard Date: Thu, 31 Aug 2006 21:27:45 -0700 Subject: [PATCH 475/488] [PATCH] IPMI: fix occasional oops on module unload Olaf Kirch of SuSE tracked down a problem where module unloads of the IPMI driver would occasionally result in Oopses. He tracked that down to a variable that wasn't always initialized properly in some situations. This patch initializes that variable. Olaf sent a patch that kzalloc-ed the data, but this structure is large enough that I would perfer to not do that. Thanks Olaf! Signed-off-by: Corey Minyard Cc: Olaf Kirch Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/ipmi/ipmi_msghandler.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c index 0aa5d608fe6f..843d34c8627c 100644 --- a/drivers/char/ipmi/ipmi_msghandler.c +++ b/drivers/char/ipmi/ipmi_msghandler.c @@ -3428,6 +3428,7 @@ struct ipmi_recv_msg *ipmi_alloc_recv_msg(void) rv = kmalloc(sizeof(struct ipmi_recv_msg), GFP_ATOMIC); if (rv) { + rv->user = NULL; rv->done = free_recv_msg; atomic_inc(&recv_msg_inuse_count); } From 1e5f5e5cd65eec6ce5c24a9c29f3e52673b121a6 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Thu, 31 Aug 2006 21:27:46 -0700 Subject: [PATCH 476/488] [PATCH] schedule obsolete OSS drivers for removal, 2nd round This patch schedules obsolete OSS drivers (with ALSA drivers that support the same hardware) for removal. A rationale of the patch is in http://lkml.org/lkml/2006/7/11/186 Signed-off-by: Adrian Bunk Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/feature-removal-schedule.txt | 7 +++++ sound/oss/Kconfig | 30 ++++++++++++++++------ 2 files changed, 29 insertions(+), 8 deletions(-) diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index 87851efb0228..d1cd5f93e028 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -120,6 +120,13 @@ Who: Adrian Bunk --------------------------- +What: drivers depending on OSS_OBSOLETE_DRIVER +When: options in 2.6.20, code in 2.6.22 +Why: OSS drivers with ALSA replacements +Who: Adrian Bunk + +--------------------------- + What: pci_module_init(driver) When: January 2007 Why: Is replaced by pci_register_driver(pci_driver). diff --git a/sound/oss/Kconfig b/sound/oss/Kconfig index 1b7c3dfc2b41..97e38b665587 100644 --- a/sound/oss/Kconfig +++ b/sound/oss/Kconfig @@ -5,6 +5,20 @@ # # Prompt user for primary drivers. +config OSS_OBSOLETE_DRIVER + bool "Obsolete OSS drivers" + depends on SOUND_PRIME + help + This option enables support for obsolete OSS drivers that + are scheduled for removal in the near future since there + are ALSA drivers for the same hardware. + + Please contact Adrian Bunk if you had to + say Y here because your soundcard is not properly supported + by ALSA. + + If unsure, say N. + config SOUND_BT878 tristate "BT878 audio dma" depends on SOUND_PRIME && PCI @@ -23,7 +37,7 @@ config SOUND_BT878 config SOUND_EMU10K1 tristate "Creative SBLive! (EMU10K1)" - depends on SOUND_PRIME && PCI + depends on SOUND_PRIME && PCI && OSS_OBSOLETE_DRIVER ---help--- Say Y or M if you have a PCI sound card using the EMU10K1 chipset, such as the Creative SBLive!, SB PCI512 or Emu-APS. @@ -49,7 +63,7 @@ config MIDI_EMU10K1 config SOUND_FUSION tristate "Crystal SoundFusion (CS4280/461x)" - depends on SOUND_PRIME && PCI + depends on SOUND_PRIME && PCI && OSS_OBSOLETE_DRIVER help This module drives the Crystal SoundFusion devices (CS4280/46xx series) when wired as native sound drivers with AC97 codecs. If @@ -440,7 +454,7 @@ config SOUND_DMAP config SOUND_AD1816 tristate "AD1816(A) based cards (EXPERIMENTAL)" - depends on EXPERIMENTAL && SOUND_OSS + depends on EXPERIMENTAL && SOUND_OSS && OSS_OBSOLETE_DRIVER help Say M here if you have a sound card based on the Analog Devices AD1816(A) chip. @@ -450,21 +464,21 @@ config SOUND_AD1816 config SOUND_AD1889 tristate "AD1889 based cards (AD1819 codec) (EXPERIMENTAL)" - depends on EXPERIMENTAL && SOUND_OSS && PCI + depends on EXPERIMENTAL && SOUND_OSS && PCI && OSS_OBSOLETE_DRIVER help Say M here if you have a sound card based on the Analog Devices AD1889 chip. config SOUND_ADLIB tristate "Adlib Cards" - depends on SOUND_OSS + depends on SOUND_OSS && OSS_OBSOLETE_DRIVER help Includes ASB 64 4D. Information on programming AdLib cards is available at . config SOUND_ACI_MIXER tristate "ACI mixer (miroSOUND PCM1-pro/PCM12/PCM20)" - depends on SOUND_OSS + depends on SOUND_OSS && OSS_OBSOLETE_DRIVER ---help--- ACI (Audio Command Interface) is a protocol used to communicate with the microcontroller on some sound cards produced by miro and @@ -586,7 +600,7 @@ config SOUND_MPU401 config SOUND_NM256 tristate "NM256AV/NM256ZX audio support" - depends on SOUND_OSS + depends on SOUND_OSS && OSS_OBSOLETE_DRIVER help Say M here to include audio support for the NeoMagic 256AV/256ZX chipsets. These are the audio chipsets found in the Sony @@ -706,7 +720,7 @@ config SOUND_YM3812 config SOUND_OPL3SA2 tristate "Yamaha OPL3-SA2 and SA3 based PnP cards" - depends on SOUND_OSS + depends on SOUND_OSS && OSS_OBSOLETE_DRIVER help Say Y or M if you have a card based on one of these Yamaha sound chipsets or the "SAx", which is actually a SA3. Read From 0b1d647a02c5a1b67d45287eeb6cb3b2219c41c3 Mon Sep 17 00:00:00 2001 From: Pavel Mironchik Date: Thu, 31 Aug 2006 21:27:47 -0700 Subject: [PATCH 477/488] [PATCH] dm: work around mempool_alloc, bio_alloc_bioset deadlocks This patch works around a complex dm-related deadlock/livelock down in the mempool allocator. Alasdair said: Several dm targets suffer from this. Mempools are not yet used correctly everywhere in device-mapper: they can get shared when devices are stacked, and some targets share them across multiple instances. I made fixing this one of the prerequisites for this patch: md-dm-reduce-stack-usage-with-stacked-block-devices.patch which in some cases makes people more likely to hit the problem. There's been some progress on this recently with (unfinished) dm-crypt patches at: http://www.kernel.org/pub/linux/kernel/people/agk/patches/2.6/editing/ (dm-crypt-move-io-to-workqueue.patch plus dependencies) and: I've no problems with a temporary workaround like that, but Milan Broz (a new Redhat developer in the Czech Republic) has started reviewing all the mempool usage in device-mapper so I'm expecting we'll soon have a proper fix for this associated problems. [He's back from holiday at the start of next week.] For now, this sad-but-safe little patch will allow the machine to recover. [akpm@osdl.org: rewrote changelog] Cc: Alasdair G Kergon Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/mempool.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/mm/mempool.c b/mm/mempool.c index fe6e05289cc5..ccd8cb8cd41f 100644 --- a/mm/mempool.c +++ b/mm/mempool.c @@ -238,8 +238,13 @@ repeat_alloc: init_wait(&wait); prepare_to_wait(&pool->wait, &wait, TASK_UNINTERRUPTIBLE); smp_mb(); - if (!pool->curr_nr) - io_schedule(); + if (!pool->curr_nr) { + /* + * FIXME: this should be io_schedule(). The timeout is there + * as a workaround for some DM problems in 2.6.18. + */ + io_schedule_timeout(5*HZ); + } finish_wait(&pool->wait, &wait); goto repeat_alloc; From d565dd3b0824b67a8442df4de83cc44f7c726fc9 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Thu, 31 Aug 2006 21:27:49 -0700 Subject: [PATCH 478/488] [PATCH] powerpc: More via-pmu backlight fixes The via-pmu backlight code (introduced in 2.6.18) has various design issues causing crashes on machines using it like the old Wallstreet powerbook (Michael, the author, never managed to test on these and I just got my hand on one of those old beasts). This fixes them by no longer trying to hijack the backlight device of the frontmost framebuffer (causing that framebuffer to crash) but having it's own local bits instead. Might look weird but it's better that way on those old machines, at least as a last-minute fix for 2.6.18. We might rework the whole thing later. This patch also changes the way it gets notified of sleep and wakeup in order to properly shut the backlight down on sleep and bring it back on wakeup. Signed-off-by: Benjamin Herrenschmidt Cc: "Antonino A. Daplas" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/macintosh/via-pmu-backlight.c | 95 +++++++++++++-------------- drivers/macintosh/via-pmu.c | 12 ++++ 2 files changed, 57 insertions(+), 50 deletions(-) diff --git a/drivers/macintosh/via-pmu-backlight.c b/drivers/macintosh/via-pmu-backlight.c index d3f8d75bcbb4..4397fac55ba0 100644 --- a/drivers/macintosh/via-pmu-backlight.c +++ b/drivers/macintosh/via-pmu-backlight.c @@ -18,17 +18,48 @@ static struct backlight_properties pmu_backlight_data; static spinlock_t pmu_backlight_lock; static int sleeping; +static u8 bl_curve[FB_BACKLIGHT_LEVELS]; -static int pmu_backlight_get_level_brightness(struct fb_info *info, - int level) +static void pmu_backlight_init_curve(u8 off, u8 min, u8 max) +{ + unsigned int i, flat, count, range = (max - min); + + bl_curve[0] = off; + + for (flat = 1; flat < (FB_BACKLIGHT_LEVELS / 16); ++flat) + bl_curve[flat] = min; + + count = FB_BACKLIGHT_LEVELS * 15 / 16; + for (i = 0; i < count; ++i) + bl_curve[flat + i] = min + (range * (i + 1) / count); +} + +static int pmu_backlight_curve_lookup(int value) +{ + int level = (FB_BACKLIGHT_LEVELS - 1); + int i, max = 0; + + /* Look for biggest value */ + for (i = 0; i < FB_BACKLIGHT_LEVELS; i++) + max = max((int)bl_curve[i], max); + + /* Look for nearest value */ + for (i = 0; i < FB_BACKLIGHT_LEVELS; i++) { + int diff = abs(bl_curve[i] - value); + if (diff < max) { + max = diff; + level = i; + } + } + return level; +} + +static int pmu_backlight_get_level_brightness(int level) { int pmulevel; /* Get and convert the value */ - mutex_lock(&info->bl_mutex); - pmulevel = info->bl_curve[level] * FB_BACKLIGHT_MAX / MAX_PMU_LEVEL; - mutex_unlock(&info->bl_mutex); - + pmulevel = bl_curve[level] * FB_BACKLIGHT_MAX / MAX_PMU_LEVEL; if (pmulevel < 0) pmulevel = 0; else if (pmulevel > MAX_PMU_LEVEL) @@ -39,7 +70,6 @@ static int pmu_backlight_get_level_brightness(struct fb_info *info, static int pmu_backlight_update_status(struct backlight_device *bd) { - struct fb_info *info = class_get_devdata(&bd->class_dev); struct adb_request req; unsigned long flags; int level = bd->props->brightness; @@ -55,7 +85,7 @@ static int pmu_backlight_update_status(struct backlight_device *bd) level = 0; if (level > 0) { - int pmulevel = pmu_backlight_get_level_brightness(info, level); + int pmulevel = pmu_backlight_get_level_brightness(level); pmu_request(&req, NULL, 2, PMU_BACKLIGHT_BRIGHT, pmulevel); pmu_wait_complete(&req); @@ -88,35 +118,19 @@ static struct backlight_properties pmu_backlight_data = { }; #ifdef CONFIG_PM -static int pmu_backlight_sleep_call(struct pmu_sleep_notifier *self, int when) +void pmu_backlight_set_sleep(int sleep) { unsigned long flags; spin_lock_irqsave(&pmu_backlight_lock, flags); - - switch (when) { - case PBOOK_SLEEP_REQUEST: - sleeping = 1; - break; - case PBOOK_WAKE: - sleeping = 0; - break; - } - + sleeping = sleep; spin_unlock_irqrestore(&pmu_backlight_lock, flags); - - return PBOOK_SLEEP_OK; } - -static struct pmu_sleep_notifier pmu_backlight_sleep_notif = { - .notifier_call = pmu_backlight_sleep_call, -}; -#endif +#endif /* CONFIG_PM */ void __init pmu_backlight_init() { struct backlight_device *bd; - struct fb_info *info; char name[10]; int level, autosave; @@ -131,27 +145,14 @@ void __init pmu_backlight_init() !machine_is_compatible("PowerBook1,1")) return; - /* Actually, this is a hack, but I don't know of a better way - * to get the first framebuffer device. - */ - info = registered_fb[0]; - if (!info) { - printk("pmubl: No framebuffer found\n"); - goto error; - } + snprintf(name, sizeof(name), "pmubl"); - snprintf(name, sizeof(name), "pmubl%d", info->node); - - bd = backlight_device_register(name, info, &pmu_backlight_data); + bd = backlight_device_register(name, NULL, &pmu_backlight_data); if (IS_ERR(bd)) { printk("pmubl: Backlight registration failed\n"); goto error; } - - mutex_lock(&info->bl_mutex); - info->bl_dev = bd; - fb_bl_default_curve(info, 0x7F, 0x46, 0x0E); - mutex_unlock(&info->bl_mutex); + pmu_backlight_init_curve(0x7F, 0x46, 0x0E); level = pmu_backlight_data.max_brightness; @@ -161,11 +162,9 @@ void __init pmu_backlight_init() pmu_request(&req, NULL, 2, 0xd9, 0); pmu_wait_complete(&req); - mutex_lock(&info->bl_mutex); - level = pmac_backlight_curve_lookup(info, + level = pmu_backlight_curve_lookup( (req.reply[0] >> 4) * pmu_backlight_data.max_brightness / 15); - mutex_unlock(&info->bl_mutex); } up(&bd->sem); @@ -179,10 +178,6 @@ void __init pmu_backlight_init() pmac_backlight = bd; mutex_unlock(&pmac_backlight_mutex); -#ifdef CONFIG_PM - pmu_register_sleep_notifier(&pmu_backlight_sleep_notif); -#endif - printk("pmubl: Backlight initialized (%s)\n", name); return; diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c index ea386801e215..14610a63f580 100644 --- a/drivers/macintosh/via-pmu.c +++ b/drivers/macintosh/via-pmu.c @@ -1995,6 +1995,8 @@ restore_via_state(void) out_8(&via[IER], IER_SET | SR_INT | CB1_INT); } +extern void pmu_backlight_set_sleep(int sleep); + static int pmac_suspend_devices(void) { @@ -2032,6 +2034,11 @@ pmac_suspend_devices(void) return -EBUSY; } +#ifdef CONFIG_PMAC_BACKLIGHT + /* Tell backlight code not to muck around with the chip anymore */ + pmu_backlight_set_sleep(1); +#endif + /* Call platform functions marked "on sleep" */ pmac_pfunc_i2c_suspend(); pmac_pfunc_base_suspend(); @@ -2090,6 +2097,11 @@ pmac_wakeup_devices(void) { mdelay(100); +#ifdef CONFIG_PMAC_BACKLIGHT + /* Tell backlight code it can use the chip again */ + pmu_backlight_set_sleep(0); +#endif + /* Power back up system devices (including the PIC) */ device_power_up(); From ca72945d2d0981299035bd9d40a08ff06e74b5b8 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Thu, 31 Aug 2006 21:27:50 -0700 Subject: [PATCH 479/488] [PATCH] powerpc: Fix PowerMac IRQ handling bug The port to genirq & the new powerpc interrupt model in 2.6.18 introduced a bug in the legacy PowerMac PIC code (used on older machines) because of a typo potentially causing hangs due to interrupt storms. This fixes it, along with a performance issue causing us to do spurrious retriggers after masking an interrupt. Signed-off-by: Benjamin Herrenschmidt Cc: "Antonino A. Daplas" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/powerpc/platforms/powermac/pic.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/platforms/powermac/pic.c b/arch/powerpc/platforms/powermac/pic.c index 060789e31c67..39f7ddb554ea 100644 --- a/arch/powerpc/platforms/powermac/pic.c +++ b/arch/powerpc/platforms/powermac/pic.c @@ -87,8 +87,8 @@ static void __pmac_retrigger(unsigned int irq_nr) static void pmac_mask_and_ack_irq(unsigned int virq) { unsigned int src = irq_map[virq].hwirq; - unsigned long bit = 1UL << (virq & 0x1f); - int i = virq >> 5; + unsigned long bit = 1UL << (src & 0x1f); + int i = src >> 5; unsigned long flags; spin_lock_irqsave(&pmac_pic_lock, flags); @@ -175,7 +175,7 @@ static void pmac_mask_irq(unsigned int virq) spin_lock_irqsave(&pmac_pic_lock, flags); __clear_bit(src, ppc_cached_irq_mask); - __pmac_set_irq_mask(src, 0); + __pmac_set_irq_mask(src, 1); spin_unlock_irqrestore(&pmac_pic_lock, flags); } From 7931e2a92b4de23093362308087daa8aabd3848a Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 31 Aug 2006 21:27:50 -0700 Subject: [PATCH 480/488] [PATCH] ALSA: ac97: correct some Mic mixer elements Revert the mixer element names of some Mic controls to the state of 2.6.17. This should fix the name mismatch in alsactl. Signed-off-by: Takashi Iwai Cc: Jaroslav Kysela Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- sound/pci/ac97/ac97_codec.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sound/pci/ac97/ac97_codec.c b/sound/pci/ac97/ac97_codec.c index 0abf2808d59f..51e83d7a839a 100644 --- a/sound/pci/ac97/ac97_codec.c +++ b/sound/pci/ac97/ac97_codec.c @@ -573,7 +573,7 @@ AC97_SINGLE("PC Speaker Playback Volume", AC97_PC_BEEP, 1, 15, 1) }; static const struct snd_kcontrol_new snd_ac97_controls_mic_boost = - AC97_SINGLE("Mic Boost (+20dB) Switch", AC97_MIC, 6, 1, 0); + AC97_SINGLE("Mic Boost (+20dB)", AC97_MIC, 6, 1, 0); static const char* std_rec_sel[] = {"Mic", "CD", "Video", "Aux", "Line", "Mix", "Mix Mono", "Phone"}; @@ -615,7 +615,7 @@ AC97_SINGLE("Simulated Stereo Enhancement", AC97_GENERAL_PURPOSE, 14, 1, 0), AC97_SINGLE("3D Control - Switch", AC97_GENERAL_PURPOSE, 13, 1, 0), AC97_SINGLE("Loudness (bass boost)", AC97_GENERAL_PURPOSE, 12, 1, 0), AC97_ENUM("Mono Output Select", std_enum[2]), -AC97_ENUM("Mic Select Capture Switch", std_enum[3]), +AC97_ENUM("Mic Select", std_enum[3]), AC97_SINGLE("ADC/DAC Loopback", AC97_GENERAL_PURPOSE, 7, 1, 0) }; From 1678df37be8abbb381becdc40242ed915e775550 Mon Sep 17 00:00:00 2001 From: John Keller Date: Thu, 31 Aug 2006 21:27:51 -0700 Subject: [PATCH 481/488] [PATCH] sgiioc4: fixup use of mmio ops Fix some bugs in the patch that converted the IOC4 driver from port IO ops to memio ops. http://marc.theaimsgroup.com/?l=linux-ide&m=114895892231438&w=2 Problems fixed are: - Call to default_hwif_mmiops() was not being done until _after_ first IO operation, resulting in the first IO operation being done as a port IO op, instead of memio. - request_region() calls needed to be request_mem_region() - Incomplete error case handling. - Non-usage of ioremap() and __iomem. Signed-off-by: John Keller Signed-off-by: Jeremy Higdon Cc: Alan Cox Cc: Bartlomiej Zolnierkiewicz Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/ide/pci/sgiioc4.c | 60 +++++++++++++++++++++++++++------------ 1 file changed, 42 insertions(+), 18 deletions(-) diff --git a/drivers/ide/pci/sgiioc4.c b/drivers/ide/pci/sgiioc4.c index e125032bb403..d8a0d87df734 100644 --- a/drivers/ide/pci/sgiioc4.c +++ b/drivers/ide/pci/sgiioc4.c @@ -367,12 +367,13 @@ sgiioc4_INB(unsigned long port) static void __devinit ide_dma_sgiioc4(ide_hwif_t * hwif, unsigned long dma_base) { + void __iomem *virt_dma_base; int num_ports = sizeof (ioc4_dma_regs_t); printk(KERN_INFO "%s: BM-DMA at 0x%04lx-0x%04lx\n", hwif->name, dma_base, dma_base + num_ports - 1); - if (!request_region(dma_base, num_ports, hwif->name)) { + if (!request_mem_region(dma_base, num_ports, hwif->name)) { printk(KERN_ERR "%s(%s) -- ERROR, Addresses 0x%p to 0x%p " "ALREADY in use\n", @@ -381,13 +382,21 @@ ide_dma_sgiioc4(ide_hwif_t * hwif, unsigned long dma_base) goto dma_alloc_failure; } - hwif->dma_base = dma_base; + virt_dma_base = ioremap(dma_base, num_ports); + if (virt_dma_base == NULL) { + printk(KERN_ERR + "%s(%s) -- ERROR, Unable to map addresses 0x%lx to 0x%lx\n", + __FUNCTION__, hwif->name, dma_base, dma_base + num_ports - 1); + goto dma_remap_failure; + } + hwif->dma_base = (unsigned long) virt_dma_base; + hwif->dmatable_cpu = pci_alloc_consistent(hwif->pci_dev, IOC4_PRD_ENTRIES * IOC4_PRD_BYTES, &hwif->dmatable_dma); if (!hwif->dmatable_cpu) - goto dma_alloc_failure; + goto dma_pci_alloc_failure; hwif->sg_max_nents = IOC4_PRD_ENTRIES; @@ -411,6 +420,12 @@ dma_base2alloc_failure: printk(KERN_INFO "Changing from DMA to PIO mode for Drive %s\n", hwif->name); +dma_pci_alloc_failure: + iounmap(virt_dma_base); + +dma_remap_failure: + release_mem_region(dma_base, num_ports); + dma_alloc_failure: /* Disable DMA because we couldnot allocate any DMA maps */ hwif->autodma = 0; @@ -607,18 +622,15 @@ ide_init_sgiioc4(ide_hwif_t * hwif) hwif->ide_dma_lostirq = &sgiioc4_ide_dma_lostirq; hwif->ide_dma_timeout = &__ide_dma_timeout; - /* - * The IOC4 uses MMIO rather than Port IO. - * It also needs special workarounds for INB. - */ - default_hwif_mmiops(hwif); hwif->INB = &sgiioc4_INB; } static int __devinit sgiioc4_ide_setup_pci_device(struct pci_dev *dev, ide_pci_device_t * d) { - unsigned long base, ctl, dma_base, irqport; + unsigned long cmd_base, dma_base, irqport; + unsigned long bar0, cmd_phys_base, ctl; + void __iomem *virt_base; ide_hwif_t *hwif; int h; @@ -636,23 +648,32 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev, ide_pci_device_t * d) } /* Get the CmdBlk and CtrlBlk Base Registers */ - base = pci_resource_start(dev, 0) + IOC4_CMD_OFFSET; - ctl = pci_resource_start(dev, 0) + IOC4_CTRL_OFFSET; - irqport = pci_resource_start(dev, 0) + IOC4_INTR_OFFSET; + bar0 = pci_resource_start(dev, 0); + virt_base = ioremap(bar0, pci_resource_len(dev, 0)); + if (virt_base == NULL) { + printk(KERN_ERR "%s: Unable to remap BAR 0 address: 0x%lx\n", + d->name, bar0); + return -ENOMEM; + } + cmd_base = (unsigned long) virt_base + IOC4_CMD_OFFSET; + ctl = (unsigned long) virt_base + IOC4_CTRL_OFFSET; + irqport = (unsigned long) virt_base + IOC4_INTR_OFFSET; dma_base = pci_resource_start(dev, 0) + IOC4_DMA_OFFSET; - if (!request_region(base, IOC4_CMD_CTL_BLK_SIZE, hwif->name)) { + cmd_phys_base = bar0 + IOC4_CMD_OFFSET; + if (!request_mem_region(cmd_phys_base, IOC4_CMD_CTL_BLK_SIZE, + hwif->name)) { printk(KERN_ERR - "%s : %s -- ERROR, Port Addresses " + "%s : %s -- ERROR, Addresses " "0x%p to 0x%p ALREADY in use\n", - __FUNCTION__, hwif->name, (void *) base, - (void *) base + IOC4_CMD_CTL_BLK_SIZE); + __FUNCTION__, hwif->name, (void *) cmd_phys_base, + (void *) cmd_phys_base + IOC4_CMD_CTL_BLK_SIZE); return -ENOMEM; } - if (hwif->io_ports[IDE_DATA_OFFSET] != base) { + if (hwif->io_ports[IDE_DATA_OFFSET] != cmd_base) { /* Initialize the IO registers */ - sgiioc4_init_hwif_ports(&hwif->hw, base, ctl, irqport); + sgiioc4_init_hwif_ports(&hwif->hw, cmd_base, ctl, irqport); memcpy(hwif->io_ports, hwif->hw.io_ports, sizeof (hwif->io_ports)); hwif->noprobe = !hwif->io_ports[IDE_DATA_OFFSET]; @@ -665,6 +686,9 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev, ide_pci_device_t * d) hwif->cds = (struct ide_pci_device_s *) d; hwif->gendev.parent = &dev->dev;/* setup proper ancestral information */ + /* The IOC4 uses MMIO rather than Port IO. */ + default_hwif_mmiops(hwif); + /* Initializing chipset IRQ Registers */ hwif->OUTL(0x03, irqport + IOC4_INTR_SET * 4); From 3b98b087fc2daab67518d2baa8aef19a6ad82723 Mon Sep 17 00:00:00 2001 From: Nishanth Aravamudan Date: Thu, 31 Aug 2006 21:27:53 -0700 Subject: [PATCH 482/488] [PATCH] fix NUMA interleaving for huge pages Since vma->vm_pgoff is in units of smallpages, VMAs for huge pages have the lower HPAGE_SHIFT - PAGE_SHIFT bits always cleared, which results in badd offsets to the interleave functions. Take this difference from small pages into account when calculating the offset. This does add a 0-bit shift into the small-page path (via alloc_page_vma()), but I think that is negligible. Also add a BUG_ON to prevent the offset from growing due to a negative right-shift, which probably shouldn't be allowed anyways. Tested on an 8-memory node ppc64 NUMA box and got the interleaving I expected. Signed-off-by: Nishanth Aravamudan Signed-off-by: Adam Litke Cc: Andi Kleen Acked-by: Christoph Lameter Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/mempolicy.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/mm/mempolicy.c b/mm/mempolicy.c index e07e27e846a2..a9963ceddd65 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -1176,7 +1176,15 @@ static inline unsigned interleave_nid(struct mempolicy *pol, if (vma) { unsigned long off; - off = vma->vm_pgoff; + /* + * for small pages, there is no difference between + * shift and PAGE_SHIFT, so the bit-shift is safe. + * for huge pages, since vm_pgoff is in units of small + * pages, we need to shift off the always 0 bits to get + * a useful offset. + */ + BUG_ON(shift < PAGE_SHIFT); + off = vma->vm_pgoff >> (shift - PAGE_SHIFT); off += (addr - vma->vm_start) >> shift; return offset_il_node(pol, vma, off); } else From 4cfb04a9d3d6865d932d02616b27b89d3a634026 Mon Sep 17 00:00:00 2001 From: Badari Pulavarty Date: Thu, 31 Aug 2006 21:27:54 -0700 Subject: [PATCH 483/488] [PATCH] manage-jbd-its-own-slab fix Missed a place where I forgot to convert kfree() to kmem_cache_free() as part of jbd-manage-its-own-slab changes. Signed-off-by: Badari Pulavarty Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/jbd/transaction.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/jbd/transaction.c b/fs/jbd/transaction.c index de2e4cbbf79a..f5169a96260e 100644 --- a/fs/jbd/transaction.c +++ b/fs/jbd/transaction.c @@ -727,7 +727,7 @@ done: out: if (unlikely(frozen_buffer)) /* It's usually NULL */ - kfree(frozen_buffer); + jbd_slab_free(frozen_buffer, bh->b_size); JBUFFER_TRACE(jh, "exit"); return error; From a930363881c225fb52824145d1ba8f1a8c447dd8 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Thu, 31 Aug 2006 21:27:54 -0700 Subject: [PATCH 484/488] [PATCH] backlight last round of fixes Fix some more problems (inverted use of semaphores in some places). He also moved my checks into within the protected section which is better. Signed-off-by: Michael Hanselmann Signed-off-by: Benjamin Herrenschmidt Cc: "Antonino A. Daplas" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/macintosh/via-pmu-backlight.c | 4 ++-- drivers/video/aty/aty128fb.c | 19 ++++++++++--------- drivers/video/aty/atyfb_base.c | 19 ++++++++++--------- drivers/video/aty/radeon_backlight.c | 4 ++-- drivers/video/nvidia/nv_backlight.c | 18 ++++++++++-------- drivers/video/riva/fbdev.c | 19 ++++++++++--------- 6 files changed, 44 insertions(+), 39 deletions(-) diff --git a/drivers/macintosh/via-pmu-backlight.c b/drivers/macintosh/via-pmu-backlight.c index 4397fac55ba0..a82f313d9dc9 100644 --- a/drivers/macintosh/via-pmu-backlight.c +++ b/drivers/macintosh/via-pmu-backlight.c @@ -167,11 +167,11 @@ void __init pmu_backlight_init() pmu_backlight_data.max_brightness / 15); } - up(&bd->sem); + down(&bd->sem); bd->props->brightness = level; bd->props->power = FB_BLANK_UNBLANK; bd->props->update_status(bd); - down(&bd->sem); + up(&bd->sem); mutex_lock(&pmac_backlight_mutex); if (!pmac_backlight) diff --git a/drivers/video/aty/aty128fb.c b/drivers/video/aty/aty128fb.c index 106d428b72c9..276a21530b95 100644 --- a/drivers/video/aty/aty128fb.c +++ b/drivers/video/aty/aty128fb.c @@ -1800,14 +1800,15 @@ static struct backlight_properties aty128_bl_data = { static void aty128_bl_set_power(struct fb_info *info, int power) { - if (info->bl_dev == NULL) - return; - mutex_lock(&info->bl_mutex); - up(&info->bl_dev->sem); - info->bl_dev->props->power = power; - __aty128_bl_update_status(info->bl_dev); - down(&info->bl_dev->sem); + + if (info->bl_dev) { + down(&info->bl_dev->sem); + info->bl_dev->props->power = power; + __aty128_bl_update_status(info->bl_dev); + up(&info->bl_dev->sem); + } + mutex_unlock(&info->bl_mutex); } @@ -1842,11 +1843,11 @@ static void aty128_bl_init(struct aty128fb_par *par) 219 * FB_BACKLIGHT_MAX / MAX_LEVEL); mutex_unlock(&info->bl_mutex); - up(&bd->sem); + down(&bd->sem); bd->props->brightness = aty128_bl_data.max_brightness; bd->props->power = FB_BLANK_UNBLANK; bd->props->update_status(bd); - down(&bd->sem); + up(&bd->sem); #ifdef CONFIG_PMAC_BACKLIGHT mutex_lock(&pmac_backlight_mutex); diff --git a/drivers/video/aty/atyfb_base.c b/drivers/video/aty/atyfb_base.c index 510e4ea296ed..19a71f045784 100644 --- a/drivers/video/aty/atyfb_base.c +++ b/drivers/video/aty/atyfb_base.c @@ -2199,14 +2199,15 @@ static struct backlight_properties aty_bl_data = { static void aty_bl_set_power(struct fb_info *info, int power) { - if (info->bl_dev == NULL) - return; - mutex_lock(&info->bl_mutex); - up(&info->bl_dev->sem); - info->bl_dev->props->power = power; - __aty_bl_update_status(info->bl_dev); - down(&info->bl_dev->sem); + + if (info->bl_dev) { + down(&info->bl_dev->sem); + info->bl_dev->props->power = power; + __aty_bl_update_status(info->bl_dev); + up(&info->bl_dev->sem); + } + mutex_unlock(&info->bl_mutex); } @@ -2237,11 +2238,11 @@ static void aty_bl_init(struct atyfb_par *par) 0xFF * FB_BACKLIGHT_MAX / MAX_LEVEL); mutex_unlock(&info->bl_mutex); - up(&bd->sem); + down(&bd->sem); bd->props->brightness = aty_bl_data.max_brightness; bd->props->power = FB_BLANK_UNBLANK; bd->props->update_status(bd); - down(&bd->sem); + up(&bd->sem); #ifdef CONFIG_PMAC_BACKLIGHT mutex_lock(&pmac_backlight_mutex); diff --git a/drivers/video/aty/radeon_backlight.c b/drivers/video/aty/radeon_backlight.c index 1755dddf1899..585eb7b9e636 100644 --- a/drivers/video/aty/radeon_backlight.c +++ b/drivers/video/aty/radeon_backlight.c @@ -195,11 +195,11 @@ void radeonfb_bl_init(struct radeonfb_info *rinfo) 217 * FB_BACKLIGHT_MAX / MAX_RADEON_LEVEL); mutex_unlock(&rinfo->info->bl_mutex); - up(&bd->sem); + down(&bd->sem); bd->props->brightness = radeon_bl_data.max_brightness; bd->props->power = FB_BLANK_UNBLANK; bd->props->update_status(bd); - down(&bd->sem); + up(&bd->sem); #ifdef CONFIG_PMAC_BACKLIGHT mutex_lock(&pmac_backlight_mutex); diff --git a/drivers/video/nvidia/nv_backlight.c b/drivers/video/nvidia/nv_backlight.c index 14c37c42191c..5b75ae4e9457 100644 --- a/drivers/video/nvidia/nv_backlight.c +++ b/drivers/video/nvidia/nv_backlight.c @@ -112,13 +112,15 @@ static struct backlight_properties nvidia_bl_data = { void nvidia_bl_set_power(struct fb_info *info, int power) { - if (info->bl_dev == NULL) - return; mutex_lock(&info->bl_mutex); - up(&info->bl_dev->sem); - info->bl_dev->props->power = power; - __nvidia_bl_update_status(info->bl_dev); - down(&info->bl_dev->sem); + + if (info->bl_dev) { + down(&info->bl_dev->sem); + info->bl_dev->props->power = power; + __nvidia_bl_update_status(info->bl_dev); + up(&info->bl_dev->sem); + } + mutex_unlock(&info->bl_mutex); } @@ -153,11 +155,11 @@ void nvidia_bl_init(struct nvidia_par *par) 0x534 * FB_BACKLIGHT_MAX / MAX_LEVEL); mutex_unlock(&info->bl_mutex); - up(&bd->sem); + down(&bd->sem); bd->props->brightness = nvidia_bl_data.max_brightness; bd->props->power = FB_BLANK_UNBLANK; bd->props->update_status(bd); - down(&bd->sem); + up(&bd->sem); #ifdef CONFIG_PMAC_BACKLIGHT mutex_lock(&pmac_backlight_mutex); diff --git a/drivers/video/riva/fbdev.c b/drivers/video/riva/fbdev.c index 90363943bd57..8ddb47a56b07 100644 --- a/drivers/video/riva/fbdev.c +++ b/drivers/video/riva/fbdev.c @@ -354,14 +354,15 @@ static struct backlight_properties riva_bl_data = { static void riva_bl_set_power(struct fb_info *info, int power) { - if (info->bl_dev == NULL) - return; - mutex_lock(&info->bl_mutex); - up(&info->bl_dev->sem); - info->bl_dev->props->power = power; - __riva_bl_update_status(info->bl_dev); - down(&info->bl_dev->sem); + + if (info->bl_dev) { + down(&info->bl_dev->sem); + info->bl_dev->props->power = power; + __riva_bl_update_status(info->bl_dev); + up(&info->bl_dev->sem); + } + mutex_unlock(&info->bl_mutex); } @@ -396,11 +397,11 @@ static void riva_bl_init(struct riva_par *par) 0x534 * FB_BACKLIGHT_MAX / MAX_LEVEL); mutex_unlock(&info->bl_mutex); - up(&bd->sem); + down(&bd->sem); bd->props->brightness = riva_bl_data.max_brightness; bd->props->power = FB_BLANK_UNBLANK; bd->props->update_status(bd); - down(&bd->sem); + up(&bd->sem); #ifdef CONFIG_PMAC_BACKLIGHT mutex_lock(&pmac_backlight_mutex); From a188ad2bc7dbfa16ccdcaa8d43ade185b969baff Mon Sep 17 00:00:00 2001 From: "George G. Davis" Date: Sat, 2 Sep 2006 18:43:20 +0100 Subject: [PATCH 485/488] [ARM] 3762/1: Fix ptrace cache coherency bug for ARM1136 VIPT nonaliasing Harvard caches Patch from George G. Davis Resolve ARM1136 VIPT non-aliasing cache coherency issues observed when using ptrace to set breakpoints and cleanup copy_{to,from}_user_page() while we're here as requested by Russell King because "it's also far too heavy on non-v6 CPUs". NOTES: 1. Only access_process_vm() calls copy_{to,from}_user_page(). 2. access_process_vm() calls get_user_pages() to pin down the "page". 3. get_user_pages() calls flush_dcache_page(page) which ensures cache coherency between kernel and userspace mappings of "page". However flush_dcache_page(page) may not invalidate I-Cache over this range for all cases, specifically, I-Cache is not invalidated for the VIPT non-aliasing case. So memory is consistent between kernel and user space mappings of "page" but I-Cache may still be hot over this range. IOW, we don't have to worry about flush_cache_page() before memcpy(). 4. Now, for the copy_to_user_page() case, after memcpy(), we must flush the caches so memory is consistent with kernel cache entries and invalidate the I-Cache if this mm region is executable. We don't need to do anything after memcpy() for the copy_from_user_page() case since kernel cache entries will be invalidated via the same process above if we access "page" again. The flush_ptrace_access() function (borrowed from SPARC64 implementation) is added to handle cache flushing after memcpy() for the copy_to_user_page() case. Signed-off-by: George G. Davis Signed-off-by: Russell King --- arch/arm/mm/flush.c | 26 ++++++++++++++++++++++++++ include/asm-arm/cacheflush.h | 18 +++++++++++++++--- 2 files changed, 41 insertions(+), 3 deletions(-) diff --git a/arch/arm/mm/flush.c b/arch/arm/mm/flush.c index b103e56806bd..d438ce41cdd5 100644 --- a/arch/arm/mm/flush.c +++ b/arch/arm/mm/flush.c @@ -87,6 +87,32 @@ void flush_cache_page(struct vm_area_struct *vma, unsigned long user_addr, unsig if (cache_is_vipt_aliasing()) flush_pfn_alias(pfn, user_addr); } + +void flush_ptrace_access(struct vm_area_struct *vma, struct page *page, + unsigned long uaddr, void *kaddr, + unsigned long len, int write) +{ + if (cache_is_vivt()) { + if (cpu_isset(smp_processor_id(), vma->vm_mm->cpu_vm_mask)) { + unsigned long addr = (unsigned long)kaddr; + __cpuc_coherent_kern_range(addr, addr + len); + } + return; + } + + if (cache_is_vipt_aliasing()) { + flush_pfn_alias(page_to_pfn(page), uaddr); + return; + } + + /* VIPT non-aliasing cache */ + if (cpu_isset(smp_processor_id(), vma->vm_mm->cpu_vm_mask) && + vma->vm_flags | VM_EXEC) { + unsigned long addr = (unsigned long)kaddr; + /* only flushing the kernel mapping on non-aliasing VIPT */ + __cpuc_coherent_kern_range(addr, addr + len); + } +} #else #define flush_pfn_alias(pfn,vaddr) do { } while (0) #endif diff --git a/include/asm-arm/cacheflush.h b/include/asm-arm/cacheflush.h index fe0c744e0266..e4a2569c636c 100644 --- a/include/asm-arm/cacheflush.h +++ b/include/asm-arm/cacheflush.h @@ -247,14 +247,12 @@ extern void dmac_flush_range(unsigned long, unsigned long); */ #define copy_to_user_page(vma, page, vaddr, dst, src, len) \ do { \ - flush_cache_page(vma, vaddr, page_to_pfn(page));\ memcpy(dst, src, len); \ - flush_dcache_page(page); \ + flush_ptrace_access(vma, page, vaddr, dst, len, 1);\ } while (0) #define copy_from_user_page(vma, page, vaddr, dst, src, len) \ do { \ - flush_cache_page(vma, vaddr, page_to_pfn(page));\ memcpy(dst, src, len); \ } while (0) @@ -285,10 +283,24 @@ flush_cache_page(struct vm_area_struct *vma, unsigned long user_addr, unsigned l __cpuc_flush_user_range(addr, addr + PAGE_SIZE, vma->vm_flags); } } + +static inline void +flush_ptrace_access(struct vm_area_struct *vma, struct page *page, + unsigned long uaddr, void *kaddr, + unsigned long len, int write) +{ + if (cpu_isset(smp_processor_id(), vma->vm_mm->cpu_vm_mask)) { + unsigned long addr = (unsigned long)kaddr; + __cpuc_coherent_kern_range(addr, addr + len); + } +} #else extern void flush_cache_mm(struct mm_struct *mm); extern void flush_cache_range(struct vm_area_struct *vma, unsigned long start, unsigned long end); extern void flush_cache_page(struct vm_area_struct *vma, unsigned long user_addr, unsigned long pfn); +extern void flush_ptrace_access(struct vm_area_struct *vma, struct page *page, + unsigned long uaddr, void *kaddr, + unsigned long len, int write); #endif /* From 3b6362b833b9f7a9d4222cf1bb35f99c411abb31 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Sat, 2 Sep 2006 21:22:16 +0400 Subject: [PATCH 486/488] [PATCH] eligible_child: remove an obsolete ->tgid check It is not possible to find a sub-thread in ->children/->ptrace_children lists, ptrace_attach() does not allow to attach to sub-threads. Even if it was possible to ptrace the task from the same thread group, we can't allow to release ->group_leader while there are others (ptracer) threads in the same group. Signed-off-by: Oleg Nesterov Signed-off-by: Linus Torvalds --- kernel/exit.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/exit.c b/kernel/exit.c index a4c19a52ce46..d891883420f7 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -1053,7 +1053,7 @@ static int eligible_child(pid_t pid, int options, struct task_struct *p) * Do not consider thread group leaders that are * in a non-empty thread group: */ - if (current->tgid != p->tgid && delay_group_leader(p)) + if (delay_group_leader(p)) return 2; if (security_task_wait(p)) From 8f2779491abe57b8f0f27d96b6a3edd5a8775a58 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Mon, 4 Sep 2006 10:36:15 +1000 Subject: [PATCH 487/488] [PATCH] powerpc: Fix typo in powermac platform functions New sparse caught that typo which could have caused erratic hardware behaviour on some machines if the platform functions are used by the firmware to change bits in some FCR registers. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Linus Torvalds --- arch/powerpc/platforms/powermac/pfunc_base.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/platforms/powermac/pfunc_base.c b/arch/powerpc/platforms/powermac/pfunc_base.c index 6d66359ec8c8..aacfa59595d1 100644 --- a/arch/powerpc/platforms/powermac/pfunc_base.c +++ b/arch/powerpc/platforms/powermac/pfunc_base.c @@ -256,7 +256,7 @@ static struct pmf_handlers macio_mmio_handlers = { .write_reg32 = macio_do_write_reg32, .read_reg32 = macio_do_read_reg32, .write_reg8 = macio_do_write_reg8, - .read_reg32 = macio_do_read_reg8, + .read_reg8 = macio_do_read_reg8, .read_reg32_msrx = macio_do_read_reg32_msrx, .read_reg8_msrx = macio_do_read_reg8_msrx, .write_reg32_slm = macio_do_write_reg32_slm, From c336923b668fdcf0312efbec3b44895d713f4d81 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 3 Sep 2006 19:19:48 -0700 Subject: [PATCH 488/488] Linux 2.6.18-rc6 --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index 33559b566449..c9ed7b42873a 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 2 PATCHLEVEL = 6 SUBLEVEL = 18 -EXTRAVERSION = -rc5 +EXTRAVERSION = -rc6 NAME=Crazed Snow-Weasel # *DOCUMENTATION*