From 6cb1269b9607649b5edf1c4e7818e0cf34a9db71 Mon Sep 17 00:00:00 2001 From: Dave Kleikamp Date: Thu, 15 Sep 2005 23:25:41 -0500 Subject: [PATCH 001/352] JFS: Fix sparse warnings, including endian error The fix in inode.c is a real bug. It could result in undeleted, yet unconnected files on big-endian hardware. The others are trivial. Signed-off-by: Dave Kleikamp --- fs/jfs/inode.c | 3 +-- fs/jfs/jfs_dmap.c | 2 +- fs/jfs/jfs_txnmgr.c | 6 +++--- 3 files changed, 5 insertions(+), 6 deletions(-) diff --git a/fs/jfs/inode.c b/fs/jfs/inode.c index 0ec62d5310db..9f942ca8e4e3 100644 --- a/fs/jfs/inode.c +++ b/fs/jfs/inode.c @@ -129,8 +129,7 @@ void jfs_delete_inode(struct inode *inode) jfs_info("In jfs_delete_inode, inode = 0x%p", inode); if (!is_bad_inode(inode) && - (JFS_IP(inode)->fileset == cpu_to_le32(FILESYSTEM_I))) { - + (JFS_IP(inode)->fileset == FILESYSTEM_I)) { truncate_inode_pages(&inode->i_data, 0); if (test_cflag(COMMIT_Freewmap, inode)) diff --git a/fs/jfs/jfs_dmap.c b/fs/jfs/jfs_dmap.c index c739626f5bf1..eadf319bee22 100644 --- a/fs/jfs/jfs_dmap.c +++ b/fs/jfs/jfs_dmap.c @@ -3055,7 +3055,7 @@ static int cntlz(u32 value) * RETURN VALUES: * log2 number of blocks */ -int blkstol2(s64 nb) +static int blkstol2(s64 nb) { int l2nb; s64 mask; /* meant to be signed */ diff --git a/fs/jfs/jfs_txnmgr.c b/fs/jfs/jfs_txnmgr.c index c7a92f9deb2b..8132fce80993 100644 --- a/fs/jfs/jfs_txnmgr.c +++ b/fs/jfs/jfs_txnmgr.c @@ -2070,8 +2070,8 @@ static void xtLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd, * * function: log from maplock of freed data extents; */ -void mapLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd, - struct tlock * tlck) +static void mapLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd, + struct tlock * tlck) { struct pxd_lock *pxdlock; int i, nlock; @@ -2209,7 +2209,7 @@ void txEA(tid_t tid, struct inode *ip, dxd_t * oldea, dxd_t * newea) * function: synchronously write pages locked by transaction * after txLog() but before txUpdateMap(); */ -void txForce(struct tblock * tblk) +static void txForce(struct tblock * tblk) { struct tlock *tlck; lid_t lid, next; From 7a83e90b32a2b2500e0be6a5317ab411b39222c9 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Thu, 15 Sep 2005 15:24:59 +0100 Subject: [PATCH 002/352] [PATCH] PATCH: silly in piix driver Signed-off-by: Alan Cox Signed-off-by: Jeff Garzik --- drivers/scsi/ata_piix.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/scsi/ata_piix.c b/drivers/scsi/ata_piix.c index 87e0c36f1554..d71cef767cec 100644 --- a/drivers/scsi/ata_piix.c +++ b/drivers/scsi/ata_piix.c @@ -442,7 +442,6 @@ static void piix_sata_phy_reset(struct ata_port *ap) * piix_set_piomode - Initialize host controller PATA PIO timings * @ap: Port whose timings we are configuring * @adev: um - * @pio: PIO mode, 0 - 4 * * Set PIO mode for device, in host controller PCI config space. * From 17b14451fd2b187ddd6303726755a3af0a926b6c Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Thu, 15 Sep 2005 15:44:00 +0100 Subject: [PATCH 003/352] [PATCH] PATCH: remove function for non-PCI as requested Signed-off-by: Alan Cox Signed-off-by: Jeff Garzik --- drivers/scsi/libata-core.c | 81 +++++++++++++++++++++++--------------- include/linux/libata.h | 1 + 2 files changed, 50 insertions(+), 32 deletions(-) diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c index 5cc53cd9323e..72bdc91e148c 100644 --- a/drivers/scsi/libata-core.c +++ b/drivers/scsi/libata-core.c @@ -4122,6 +4122,53 @@ err_out: return 0; } +/** + * ata_host_set_remove - PCI layer callback for device removal + * @host_set: ATA host set that was removed + * + * Unregister all objects associated with this host set. Free those + * objects. + * + * LOCKING: + * Inherited from calling layer (may sleep). + */ + + +void ata_host_set_remove(struct ata_host_set *host_set) +{ + struct ata_port *ap; + unsigned int i; + + for (i = 0; i < host_set->n_ports; i++) { + ap = host_set->ports[i]; + scsi_remove_host(ap->host); + } + + free_irq(host_set->irq, host_set); + + for (i = 0; i < host_set->n_ports; i++) { + ap = host_set->ports[i]; + + ata_scsi_release(ap->host); + + if ((ap->flags & ATA_FLAG_NO_LEGACY) == 0) { + struct ata_ioports *ioaddr = &ap->ioaddr; + + if (ioaddr->cmd_addr == 0x1f0) + release_region(0x1f0, 8); + else if (ioaddr->cmd_addr == 0x170) + release_region(0x170, 8); + } + + scsi_host_put(ap->host); + } + + if (host_set->ops->host_stop) + host_set->ops->host_stop(host_set); + + kfree(host_set); +} + /** * ata_scsi_release - SCSI layer callback hook for host unload * @host: libata host to be unloaded @@ -4462,39 +4509,8 @@ void ata_pci_remove_one (struct pci_dev *pdev) { struct device *dev = pci_dev_to_dev(pdev); struct ata_host_set *host_set = dev_get_drvdata(dev); - struct ata_port *ap; - unsigned int i; - - for (i = 0; i < host_set->n_ports; i++) { - ap = host_set->ports[i]; - - scsi_remove_host(ap->host); - } - - free_irq(host_set->irq, host_set); - - for (i = 0; i < host_set->n_ports; i++) { - ap = host_set->ports[i]; - - ata_scsi_release(ap->host); - - if ((ap->flags & ATA_FLAG_NO_LEGACY) == 0) { - struct ata_ioports *ioaddr = &ap->ioaddr; - - if (ioaddr->cmd_addr == 0x1f0) - release_region(0x1f0, 8); - else if (ioaddr->cmd_addr == 0x170) - release_region(0x170, 8); - } - - scsi_host_put(ap->host); - } - - if (host_set->ops->host_stop) - host_set->ops->host_stop(host_set); - - kfree(host_set); + ata_host_set_remove(host_set); pci_release_regions(pdev); pci_disable_device(pdev); dev_set_drvdata(dev, NULL); @@ -4564,6 +4580,7 @@ module_exit(ata_exit); EXPORT_SYMBOL_GPL(ata_std_bios_param); EXPORT_SYMBOL_GPL(ata_std_ports); EXPORT_SYMBOL_GPL(ata_device_add); +EXPORT_SYMBOL_GPL(ata_host_set_remove); EXPORT_SYMBOL_GPL(ata_sg_init); EXPORT_SYMBOL_GPL(ata_sg_init_one); EXPORT_SYMBOL_GPL(ata_qc_complete); diff --git a/include/linux/libata.h b/include/linux/libata.h index 022105c745fc..ceee1fc42c60 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -393,6 +393,7 @@ extern int ata_pci_init_one (struct pci_dev *pdev, struct ata_port_info **port_i extern void ata_pci_remove_one (struct pci_dev *pdev); #endif /* CONFIG_PCI */ extern int ata_device_add(struct ata_probe_ent *ent); +extern void ata_host_set_remove(struct ata_host_set *host_set); extern int ata_scsi_detect(Scsi_Host_Template *sht); extern int ata_scsi_ioctl(struct scsi_device *dev, int cmd, void __user *arg); extern int ata_scsi_queuecmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *)); From 438282d85de2c8f8c5183fdf55140e51a0b18670 Mon Sep 17 00:00:00 2001 From: Dave Kleikamp Date: Tue, 20 Sep 2005 14:58:11 -0500 Subject: [PATCH 004/352] JFS: don't dereference tlck->ip from txUpdateMap The inode pointer may no longer be valid Signed-off-by: Dave Kleikamp --- fs/jfs/jfs_txnmgr.c | 9 ++++++++- fs/jfs/jfs_txnmgr.h | 1 + 2 files changed, 9 insertions(+), 1 deletion(-) diff --git a/fs/jfs/jfs_txnmgr.c b/fs/jfs/jfs_txnmgr.c index 8132fce80993..9b71ed2674fe 100644 --- a/fs/jfs/jfs_txnmgr.c +++ b/fs/jfs/jfs_txnmgr.c @@ -725,6 +725,9 @@ struct tlock *txLock(tid_t tid, struct inode *ip, struct metapage * mp, else tlck->flag = tlckINODELOCK; + if (S_ISDIR(ip->i_mode)) + tlck->flag |= tlckDIRECTORY; + tlck->type = 0; /* bind the tlock and the page */ @@ -1009,6 +1012,8 @@ struct tlock *txMaplock(tid_t tid, struct inode *ip, int type) /* bind the tlock and the object */ tlck->flag = tlckINODELOCK; + if (S_ISDIR(ip->i_mode)) + tlck->flag |= tlckDIRECTORY; tlck->ip = ip; tlck->mp = NULL; @@ -1077,6 +1082,8 @@ struct linelock *txLinelock(struct linelock * tlock) linelock->flag = tlckLINELOCK; linelock->maxcnt = TLOCKLONG; linelock->index = 0; + if (tlck->flag & tlckDIRECTORY) + linelock->flag |= tlckDIRECTORY; /* append linelock after tlock */ linelock->next = tlock->next; @@ -2358,7 +2365,7 @@ static void txUpdateMap(struct tblock * tblk) */ else { /* (maplock->flag & mlckFREE) */ - if (S_ISDIR(tlck->ip->i_mode)) + if (tlck->flag & tlckDIRECTORY) txFreeMap(ipimap, maplock, tblk, COMMIT_PWMAP); else diff --git a/fs/jfs/jfs_txnmgr.h b/fs/jfs/jfs_txnmgr.h index 59ad0f6b7231..0e4dc4514c47 100644 --- a/fs/jfs/jfs_txnmgr.h +++ b/fs/jfs/jfs_txnmgr.h @@ -122,6 +122,7 @@ extern struct tlock *TxLock; /* transaction lock table */ #define tlckLOG 0x0800 /* updateMap state */ #define tlckUPDATEMAP 0x0080 +#define tlckDIRECTORY 0x0040 /* freeLock state */ #define tlckFREELOCK 0x0008 #define tlckWRITEPAGE 0x0004 From 68ce1eb54056e4fad6e73968e958b926d28cb0dd Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Wed, 21 Sep 2005 09:46:54 -0700 Subject: [PATCH 005/352] [SCSI] lpfc build fix gcc-2.95.x doesn't do anonymous unions. Signed-off-by: Andrew Morton Signed-off-by: James Bottomley --- drivers/scsi/lpfc/lpfc_attr.c | 8 ++++---- drivers/scsi/lpfc/lpfc_hbadisc.c | 4 ++-- drivers/scsi/lpfc/lpfc_hw.h | 4 ++-- drivers/scsi/lpfc/lpfc_init.c | 6 +++--- 4 files changed, 11 insertions(+), 11 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c index 86eaf6d408d5..acae7c48ef7d 100644 --- a/drivers/scsi/lpfc/lpfc_attr.c +++ b/drivers/scsi/lpfc/lpfc_attr.c @@ -973,10 +973,10 @@ lpfc_get_host_fabric_name (struct Scsi_Host *shost) if ((phba->fc_flag & FC_FABRIC) || ((phba->fc_topology == TOPOLOGY_LOOP) && (phba->fc_flag & FC_PUBLIC_LOOP))) - node_name = wwn_to_u64(phba->fc_fabparam.nodeName.wwn); + node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn); else /* fabric is local port if there is no F/FL_Port */ - node_name = wwn_to_u64(phba->fc_nodename.wwn); + node_name = wwn_to_u64(phba->fc_nodename.u.wwn); spin_unlock_irq(shost->host_lock); @@ -1110,7 +1110,7 @@ lpfc_get_starget_node_name(struct scsi_target *starget) /* Search the mapped list for this target ID */ list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) { if (starget->id == ndlp->nlp_sid) { - node_name = wwn_to_u64(ndlp->nlp_nodename.wwn); + node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn); break; } } @@ -1131,7 +1131,7 @@ lpfc_get_starget_port_name(struct scsi_target *starget) /* Search the mapped list for this target ID */ list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) { if (starget->id == ndlp->nlp_sid) { - port_name = wwn_to_u64(ndlp->nlp_portname.wwn); + port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn); break; } } diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c index 4fb8eb0c84cf..56052f4510c3 100644 --- a/drivers/scsi/lpfc/lpfc_hbadisc.c +++ b/drivers/scsi/lpfc/lpfc_hbadisc.c @@ -1019,8 +1019,8 @@ lpfc_register_remote_port(struct lpfc_hba * phba, struct fc_rport_identifiers rport_ids; /* Remote port has reappeared. Re-register w/ FC transport */ - rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.wwn); - rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.wwn); + rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn); + rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn); rport_ids.port_id = ndlp->nlp_DID; rport_ids.roles = FC_RPORT_ROLE_UNKNOWN; if (ndlp->nlp_type & NLP_FCP_TARGET) diff --git a/drivers/scsi/lpfc/lpfc_hw.h b/drivers/scsi/lpfc/lpfc_hw.h index 047a87c26cc0..86c41981188b 100644 --- a/drivers/scsi/lpfc/lpfc_hw.h +++ b/drivers/scsi/lpfc/lpfc_hw.h @@ -280,9 +280,9 @@ struct lpfc_name { #define NAME_CCITT_GR_TYPE 0xE uint8_t IEEEextLsb; /* FC Word 0, bit 16:23, IEEE extended Lsb */ uint8_t IEEE[6]; /* FC IEEE address */ - }; + } s; uint8_t wwn[8]; - }; + } u; }; struct csp { diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index 454058f655db..0856ff7d3b33 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -285,7 +285,7 @@ lpfc_config_port_post(struct lpfc_hba * phba) if (phba->SerialNumber[0] == 0) { uint8_t *outptr; - outptr = (uint8_t *) & phba->fc_nodename.IEEE[0]; + outptr = &phba->fc_nodename.u.s.IEEE[0]; for (i = 0; i < 12; i++) { status = *outptr++; j = ((status & 0xf0) >> 4); @@ -1523,8 +1523,8 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) * Must done after lpfc_sli_hba_setup() */ - fc_host_node_name(host) = wwn_to_u64(phba->fc_nodename.wwn); - fc_host_port_name(host) = wwn_to_u64(phba->fc_portname.wwn); + fc_host_node_name(host) = wwn_to_u64(phba->fc_nodename.u.wwn); + fc_host_port_name(host) = wwn_to_u64(phba->fc_portname.u.wwn); fc_host_supported_classes(host) = FC_COS_CLASS3; memset(fc_host_supported_fc4s(host), 0, From 2a7e2990340a1c42321d79dc99755683ea5a1026 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 21 Sep 2005 18:50:51 -0700 Subject: [PATCH 006/352] [SPARC64]: Move kernel TLB miss handling into a seperate file. Signed-off-by: David S. Miller --- arch/sparc64/kernel/dtlb_base.S | 8 +- arch/sparc64/kernel/entry.S | 153 ---------------------------- arch/sparc64/kernel/head.S | 1 + arch/sparc64/kernel/ktlb.S | 174 ++++++++++++++++++++++++++++++++ 4 files changed, 179 insertions(+), 157 deletions(-) create mode 100644 arch/sparc64/kernel/ktlb.S diff --git a/arch/sparc64/kernel/dtlb_base.S b/arch/sparc64/kernel/dtlb_base.S index ded2fed23fcc..702d349c1e88 100644 --- a/arch/sparc64/kernel/dtlb_base.S +++ b/arch/sparc64/kernel/dtlb_base.S @@ -71,7 +71,7 @@ from_tl1_trap: rdpr %tl, %g5 ! For TL==3 test CREATE_VPTE_OFFSET1(%g4, %g6) ! Create VPTE offset - be,pn %xcc, 3f ! Yep, special processing + be,pn %xcc, kvmap ! Yep, special processing CREATE_VPTE_OFFSET2(%g4, %g6) ! Create VPTE offset cmp %g5, 4 ! Last trap level? be,pn %xcc, longpath ! Yep, cannot risk VPTE miss @@ -83,9 +83,9 @@ from_tl1_trap: nop ! Delay-slot 9: stxa %g5, [%g0] ASI_DTLB_DATA_IN ! Reload TLB retry ! Trap return -3: brlz,pt %g4, 9b ! Kernel virtual map? - xor %g2, %g4, %g5 ! Finish bit twiddles - ba,a,pt %xcc, kvmap ! Yep, go check for obp/vmalloc + nop + nop + nop /* DTLB ** ICACHE line 3: winfixups+real_faults */ longpath: diff --git a/arch/sparc64/kernel/entry.S b/arch/sparc64/kernel/entry.S index b48349527853..45cd3bbdb7e0 100644 --- a/arch/sparc64/kernel/entry.S +++ b/arch/sparc64/kernel/entry.S @@ -30,159 +30,6 @@ .text .align 32 - .globl sparc64_vpte_patchme1 - .globl sparc64_vpte_patchme2 -/* - * On a second level vpte miss, check whether the original fault is to the OBP - * range (note that this is only possible for instruction miss, data misses to - * obp range do not use vpte). If so, go back directly to the faulting address. - * This is because we want to read the tpc, otherwise we have no way of knowing - * the 8k aligned faulting address if we are using >8k kernel pagesize. This - * also ensures no vpte range addresses are dropped into tlb while obp is - * executing (see inherit_locked_prom_mappings() rant). - */ -sparc64_vpte_nucleus: - /* Note that kvmap below has verified that the address is - * in the range MODULES_VADDR --> VMALLOC_END already. So - * here we need only check if it is an OBP address or not. - */ - sethi %hi(LOW_OBP_ADDRESS), %g5 - cmp %g4, %g5 - blu,pn %xcc, sparc64_vpte_patchme1 - mov 0x1, %g5 - sllx %g5, 32, %g5 - cmp %g4, %g5 - blu,pn %xcc, obp_iaddr_patch - nop - - /* These two instructions are patched by paginig_init(). */ -sparc64_vpte_patchme1: - sethi %hi(0), %g5 -sparc64_vpte_patchme2: - or %g5, %lo(0), %g5 - - /* With kernel PGD in %g5, branch back into dtlb_backend. */ - ba,pt %xcc, sparc64_kpte_continue - andn %g1, 0x3, %g1 /* Finish PMD offset adjustment. */ - -vpte_noent: - /* Restore previous TAG_ACCESS, %g5 is zero, and we will - * skip over the trap instruction so that the top level - * TLB miss handler will thing this %g5 value is just an - * invalid PTE, thus branching to full fault processing. - */ - mov TLB_SFSR, %g1 - stxa %g4, [%g1 + %g1] ASI_DMMU - done - - .globl obp_iaddr_patch -obp_iaddr_patch: - /* These two instructions patched by inherit_prom_mappings(). */ - sethi %hi(0), %g5 - or %g5, %lo(0), %g5 - - /* Behave as if we are at TL0. */ - wrpr %g0, 1, %tl - rdpr %tpc, %g4 /* Find original faulting iaddr */ - srlx %g4, 13, %g4 /* Throw out context bits */ - sllx %g4, 13, %g4 /* g4 has vpn + ctx0 now */ - - /* Restore previous TAG_ACCESS. */ - mov TLB_SFSR, %g1 - stxa %g4, [%g1 + %g1] ASI_IMMU - - /* Get PMD offset. */ - srlx %g4, 23, %g6 - and %g6, 0x7ff, %g6 - sllx %g6, 2, %g6 - - /* Load PMD, is it valid? */ - lduwa [%g5 + %g6] ASI_PHYS_USE_EC, %g5 - brz,pn %g5, longpath - sllx %g5, 11, %g5 - - /* Get PTE offset. */ - srlx %g4, 13, %g6 - and %g6, 0x3ff, %g6 - sllx %g6, 3, %g6 - - /* Load PTE. */ - ldxa [%g5 + %g6] ASI_PHYS_USE_EC, %g5 - brgez,pn %g5, longpath - nop - - /* TLB load and return from trap. */ - stxa %g5, [%g0] ASI_ITLB_DATA_IN - retry - - .globl obp_daddr_patch -obp_daddr_patch: - /* These two instructions patched by inherit_prom_mappings(). */ - sethi %hi(0), %g5 - or %g5, %lo(0), %g5 - - /* Get PMD offset. */ - srlx %g4, 23, %g6 - and %g6, 0x7ff, %g6 - sllx %g6, 2, %g6 - - /* Load PMD, is it valid? */ - lduwa [%g5 + %g6] ASI_PHYS_USE_EC, %g5 - brz,pn %g5, longpath - sllx %g5, 11, %g5 - - /* Get PTE offset. */ - srlx %g4, 13, %g6 - and %g6, 0x3ff, %g6 - sllx %g6, 3, %g6 - - /* Load PTE. */ - ldxa [%g5 + %g6] ASI_PHYS_USE_EC, %g5 - brgez,pn %g5, longpath - nop - - /* TLB load and return from trap. */ - stxa %g5, [%g0] ASI_DTLB_DATA_IN - retry - -/* - * On a first level data miss, check whether this is to the OBP range (note - * that such accesses can be made by prom, as well as by kernel using - * prom_getproperty on "address"), and if so, do not use vpte access ... - * rather, use information saved during inherit_prom_mappings() using 8k - * pagesize. - */ - .align 32 -kvmap: - sethi %hi(MODULES_VADDR), %g5 - cmp %g4, %g5 - blu,pn %xcc, longpath - mov (VMALLOC_END >> 24), %g5 - sllx %g5, 24, %g5 - cmp %g4, %g5 - bgeu,pn %xcc, longpath - nop - -kvmap_check_obp: - sethi %hi(LOW_OBP_ADDRESS), %g5 - cmp %g4, %g5 - blu,pn %xcc, kvmap_vmalloc_addr - mov 0x1, %g5 - sllx %g5, 32, %g5 - cmp %g4, %g5 - blu,pn %xcc, obp_daddr_patch - nop - -kvmap_vmalloc_addr: - /* If we get here, a vmalloc addr was accessed, load kernel VPTE. */ - ldxa [%g3 + %g6] ASI_N, %g5 - brgez,pn %g5, longpath - nop - - /* PTE is valid, load into TLB and return from trap. */ - stxa %g5, [%g0] ASI_DTLB_DATA_IN ! Reload TLB - retry - /* This is trivial with the new code... */ .globl do_fpdis do_fpdis: diff --git a/arch/sparc64/kernel/head.S b/arch/sparc64/kernel/head.S index 1fa06c4e3bdb..dc3551f46b76 100644 --- a/arch/sparc64/kernel/head.S +++ b/arch/sparc64/kernel/head.S @@ -762,6 +762,7 @@ bootup_user_stack_end: swapper_pg_dir: .word 0 +#include "ktlb.S" #include "etrap.S" #include "rtrap.S" #include "winfixup.S" diff --git a/arch/sparc64/kernel/ktlb.S b/arch/sparc64/kernel/ktlb.S new file mode 100644 index 000000000000..b7176792c9a2 --- /dev/null +++ b/arch/sparc64/kernel/ktlb.S @@ -0,0 +1,174 @@ +/* arch/sparc64/kernel/ktlb.S: Kernel mapping TLB miss handling. + * + * Copyright (C) 1995, 1997, 2005 David S. Miller + * Copyright (C) 1996 Eddie C. Dost (ecd@brainaid.de) + * Copyright (C) 1996 Miguel de Icaza (miguel@nuclecu.unam.mx) + * Copyright (C) 1996,98,99 Jakub Jelinek (jj@sunsite.mff.cuni.cz) +*/ + +#include +#include +#include +#include +#include + + .text + .align 32 + + .globl sparc64_vpte_patchme1 + .globl sparc64_vpte_patchme2 +/* + * On a second level vpte miss, check whether the original fault is to the OBP + * range (note that this is only possible for instruction miss, data misses to + * obp range do not use vpte). If so, go back directly to the faulting address. + * This is because we want to read the tpc, otherwise we have no way of knowing + * the 8k aligned faulting address if we are using >8k kernel pagesize. This + * also ensures no vpte range addresses are dropped into tlb while obp is + * executing (see inherit_locked_prom_mappings() rant). + */ +sparc64_vpte_nucleus: + /* Note that kvmap below has verified that the address is + * in the range MODULES_VADDR --> VMALLOC_END already. So + * here we need only check if it is an OBP address or not. + */ + sethi %hi(LOW_OBP_ADDRESS), %g5 + cmp %g4, %g5 + blu,pn %xcc, sparc64_vpte_patchme1 + mov 0x1, %g5 + sllx %g5, 32, %g5 + cmp %g4, %g5 + blu,pn %xcc, obp_iaddr_patch + nop + + /* These two instructions are patched by paginig_init(). */ +sparc64_vpte_patchme1: + sethi %hi(0), %g5 +sparc64_vpte_patchme2: + or %g5, %lo(0), %g5 + + /* With kernel PGD in %g5, branch back into dtlb_backend. */ + ba,pt %xcc, sparc64_kpte_continue + andn %g1, 0x3, %g1 /* Finish PMD offset adjustment. */ + +vpte_noent: + /* Restore previous TAG_ACCESS, %g5 is zero, and we will + * skip over the trap instruction so that the top level + * TLB miss handler will thing this %g5 value is just an + * invalid PTE, thus branching to full fault processing. + */ + mov TLB_SFSR, %g1 + stxa %g4, [%g1 + %g1] ASI_DMMU + done + + .globl obp_iaddr_patch +obp_iaddr_patch: + /* These two instructions patched by inherit_prom_mappings(). */ + sethi %hi(0), %g5 + or %g5, %lo(0), %g5 + + /* Behave as if we are at TL0. */ + wrpr %g0, 1, %tl + rdpr %tpc, %g4 /* Find original faulting iaddr */ + srlx %g4, 13, %g4 /* Throw out context bits */ + sllx %g4, 13, %g4 /* g4 has vpn + ctx0 now */ + + /* Restore previous TAG_ACCESS. */ + mov TLB_SFSR, %g1 + stxa %g4, [%g1 + %g1] ASI_IMMU + + /* Get PMD offset. */ + srlx %g4, 23, %g6 + and %g6, 0x7ff, %g6 + sllx %g6, 2, %g6 + + /* Load PMD, is it valid? */ + lduwa [%g5 + %g6] ASI_PHYS_USE_EC, %g5 + brz,pn %g5, longpath + sllx %g5, 11, %g5 + + /* Get PTE offset. */ + srlx %g4, 13, %g6 + and %g6, 0x3ff, %g6 + sllx %g6, 3, %g6 + + /* Load PTE. */ + ldxa [%g5 + %g6] ASI_PHYS_USE_EC, %g5 + brgez,pn %g5, longpath + nop + + /* TLB load and return from trap. */ + stxa %g5, [%g0] ASI_ITLB_DATA_IN + retry + + .globl obp_daddr_patch +obp_daddr_patch: + /* These two instructions patched by inherit_prom_mappings(). */ + sethi %hi(0), %g5 + or %g5, %lo(0), %g5 + + /* Get PMD offset. */ + srlx %g4, 23, %g6 + and %g6, 0x7ff, %g6 + sllx %g6, 2, %g6 + + /* Load PMD, is it valid? */ + lduwa [%g5 + %g6] ASI_PHYS_USE_EC, %g5 + brz,pn %g5, longpath + sllx %g5, 11, %g5 + + /* Get PTE offset. */ + srlx %g4, 13, %g6 + and %g6, 0x3ff, %g6 + sllx %g6, 3, %g6 + + /* Load PTE. */ + ldxa [%g5 + %g6] ASI_PHYS_USE_EC, %g5 + brgez,pn %g5, longpath + nop + + /* TLB load and return from trap. */ + stxa %g5, [%g0] ASI_DTLB_DATA_IN + retry + +/* + * On a first level data miss, check whether this is to the OBP range (note + * that such accesses can be made by prom, as well as by kernel using + * prom_getproperty on "address"), and if so, do not use vpte access ... + * rather, use information saved during inherit_prom_mappings() using 8k + * pagesize. + */ + .align 32 +kvmap: + brlz,pt %g4, kvmap_load + xor %g2, %g4, %g5 + +kvmap_nonlinear: + sethi %hi(MODULES_VADDR), %g5 + cmp %g4, %g5 + blu,pn %xcc, longpath + mov (VMALLOC_END >> 24), %g5 + sllx %g5, 24, %g5 + cmp %g4, %g5 + bgeu,pn %xcc, longpath + nop + +kvmap_check_obp: + sethi %hi(LOW_OBP_ADDRESS), %g5 + cmp %g4, %g5 + blu,pn %xcc, kvmap_vmalloc_addr + mov 0x1, %g5 + sllx %g5, 32, %g5 + cmp %g4, %g5 + blu,pn %xcc, obp_daddr_patch + nop + +kvmap_vmalloc_addr: + /* If we get here, a vmalloc addr was accessed, load kernel VPTE. */ + ldxa [%g3 + %g6] ASI_N, %g5 + brgez,pn %g5, longpath + nop + +kvmap_load: + /* PTE is valid, load into TLB and return from trap. */ + stxa %g5, [%g0] ASI_DTLB_DATA_IN ! Reload TLB + retry From 059deb693ec191e563ec69533d24f3feff0b78cd Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 21 Sep 2005 19:23:48 -0700 Subject: [PATCH 007/352] [SPARC64]: Kill SZ_BITS define from dtlb_backend.S This is just a replica of the existing _PAGE_SZBITS, and thus unnecessary. Signed-off-by: David S. Miller --- arch/sparc64/kernel/dtlb_backend.S | 13 +------------ 1 file changed, 1 insertion(+), 12 deletions(-) diff --git a/arch/sparc64/kernel/dtlb_backend.S b/arch/sparc64/kernel/dtlb_backend.S index 538522848ad4..acc889a7f9c1 100644 --- a/arch/sparc64/kernel/dtlb_backend.S +++ b/arch/sparc64/kernel/dtlb_backend.S @@ -9,17 +9,7 @@ #include #include -#if PAGE_SHIFT == 13 -#define SZ_BITS _PAGE_SZ8K -#elif PAGE_SHIFT == 16 -#define SZ_BITS _PAGE_SZ64K -#elif PAGE_SHIFT == 19 -#define SZ_BITS _PAGE_SZ512K -#elif PAGE_SHIFT == 22 -#define SZ_BITS _PAGE_SZ4MB -#endif - -#define VALID_SZ_BITS (_PAGE_VALID | SZ_BITS) +#define VALID_SZ_BITS (_PAGE_VALID | _PAGE_SZBITS) #define VPTE_BITS (_PAGE_CP | _PAGE_CV | _PAGE_P ) #define VPTE_SHIFT (PAGE_SHIFT - 3) @@ -163,7 +153,6 @@ sparc64_vpte_continue: stxa %g4, [%g1 + %g1] ASI_DMMU ! Restore previous TAG_ACCESS retry ! Load PTE once again -#undef SZ_BITS #undef VALID_SZ_BITS #undef VPTE_SHIFT #undef VPTE_BITS From e86ee6682b649183c11013a98be02f25e9ae399d Mon Sep 17 00:00:00 2001 From: Andy Currid Date: Mon, 19 Sep 2005 06:17:52 -0700 Subject: [PATCH 008/352] [PATCH] Add NVIDIA device ID in sata_nv Signed-off-by: Andy Currid Signed-off-by: Jeff Garzik --- drivers/scsi/sata_nv.c | 2 ++ include/linux/pci_ids.h | 3 ++- 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/sata_nv.c b/drivers/scsi/sata_nv.c index a1d62dee3be6..c05653c7779d 100644 --- a/drivers/scsi/sata_nv.c +++ b/drivers/scsi/sata_nv.c @@ -158,6 +158,8 @@ static struct pci_device_id nv_pci_tbl[] = { PCI_ANY_ID, PCI_ANY_ID, 0, 0, MCP51 }, { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP55_SATA, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MCP55 }, + { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP55_SATA2, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, MCP55 }, { PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_IDE<<8, 0xffff00, GENERIC }, diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index f6c1a142286a..cb414ea42f02 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -1267,7 +1267,8 @@ #define PCI_DEVICE_ID_NVIDIA_NFORCE_MCP51_SATA 0x0266 #define PCI_DEVICE_ID_NVIDIA_NFORCE_MCP51_SATA2 0x0267 #define PCI_DEVICE_ID_NVIDIA_NFORCE_MCP55_IDE 0x036E -#define PCI_DEVICE_ID_NVIDIA_NFORCE_MCP55_SATA 0x036F +#define PCI_DEVICE_ID_NVIDIA_NFORCE_MCP55_SATA 0x037E +#define PCI_DEVICE_ID_NVIDIA_NFORCE_MCP55_SATA2 0x037F #define PCI_DEVICE_ID_NVIDIA_NVENET_12 0x0268 #define PCI_DEVICE_ID_NVIDIA_NVENET_13 0x0269 #define PCI_DEVICE_ID_NVIDIA_MCP51_AUDIO 0x026B From 1ac4f5ebaa496a23ab4a148c9864d7e30a6c6cd3 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 21 Sep 2005 21:49:32 -0700 Subject: [PATCH 009/352] [SPARC64]: Remove ktlb.S instruction patching. This was kind of ugly, and actually buggy. The bug was that we didn't handle a machine with memory starting > 4GB. If the 'prompmd' was allocated in physical memory > 4GB we'd croak because the obp_iaddr_patch and obp_daddr_patch things only supported a 32-bit physical address. So fix this by just loading the appropriate values from two variables in the kernel image, which is locked into the TLB and thus accesses to them can't cause a recursive TLB miss. Signed-off-by: David S. Miller --- arch/sparc64/kernel/ktlb.S | 31 ++++++++++++------------------- arch/sparc64/mm/init.c | 32 ++++++++++++-------------------- 2 files changed, 24 insertions(+), 39 deletions(-) diff --git a/arch/sparc64/kernel/ktlb.S b/arch/sparc64/kernel/ktlb.S index b7176792c9a2..a591bc0ebc7b 100644 --- a/arch/sparc64/kernel/ktlb.S +++ b/arch/sparc64/kernel/ktlb.S @@ -15,8 +15,6 @@ .text .align 32 - .globl sparc64_vpte_patchme1 - .globl sparc64_vpte_patchme2 /* * On a second level vpte miss, check whether the original fault is to the OBP * range (note that this is only possible for instruction miss, data misses to @@ -33,18 +31,17 @@ sparc64_vpte_nucleus: */ sethi %hi(LOW_OBP_ADDRESS), %g5 cmp %g4, %g5 - blu,pn %xcc, sparc64_vpte_patchme1 + blu,pn %xcc, kern_vpte mov 0x1, %g5 sllx %g5, 32, %g5 cmp %g4, %g5 - blu,pn %xcc, obp_iaddr_patch + blu,pn %xcc, vpte_insn_obp nop /* These two instructions are patched by paginig_init(). */ -sparc64_vpte_patchme1: - sethi %hi(0), %g5 -sparc64_vpte_patchme2: - or %g5, %lo(0), %g5 +kern_vpte: + sethi %hi(swapper_pgd_zero), %g5 + lduw [%g5 + %lo(swapper_pgd_zero)], %g5 /* With kernel PGD in %g5, branch back into dtlb_backend. */ ba,pt %xcc, sparc64_kpte_continue @@ -60,11 +57,9 @@ vpte_noent: stxa %g4, [%g1 + %g1] ASI_DMMU done - .globl obp_iaddr_patch -obp_iaddr_patch: - /* These two instructions patched by inherit_prom_mappings(). */ - sethi %hi(0), %g5 - or %g5, %lo(0), %g5 +vpte_insn_obp: + sethi %hi(prom_pmd_phys), %g5 + ldx [%g5 + %lo(prom_pmd_phys)], %g5 /* Behave as if we are at TL0. */ wrpr %g0, 1, %tl @@ -100,11 +95,9 @@ obp_iaddr_patch: stxa %g5, [%g0] ASI_ITLB_DATA_IN retry - .globl obp_daddr_patch -obp_daddr_patch: - /* These two instructions patched by inherit_prom_mappings(). */ - sethi %hi(0), %g5 - or %g5, %lo(0), %g5 +kvmap_do_obp: + sethi %hi(prom_pmd_phys), %g5 + ldx [%g5 + %lo(prom_pmd_phys)], %g5 /* Get PMD offset. */ srlx %g4, 23, %g6 @@ -159,7 +152,7 @@ kvmap_check_obp: mov 0x1, %g5 sllx %g5, 32, %g5 cmp %g4, %g5 - blu,pn %xcc, obp_daddr_patch + blu,pn %xcc, kvmap_do_obp nop kvmap_vmalloc_addr: diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c index fdb1ebb308c9..aaf9a3eee997 100644 --- a/arch/sparc64/mm/init.c +++ b/arch/sparc64/mm/init.c @@ -20,6 +20,7 @@ #include #include #include +#include #include #include @@ -45,10 +46,10 @@ struct sparc_phys_banks sp_banks[SPARC_PHYS_BANKS]; unsigned long *sparc64_valid_addr_bitmap; /* Ugly, but necessary... -DaveM */ -unsigned long phys_base; -unsigned long kern_base; -unsigned long kern_size; -unsigned long pfn_base; +unsigned long phys_base __read_mostly; +unsigned long kern_base __read_mostly; +unsigned long kern_size __read_mostly; +unsigned long pfn_base __read_mostly; /* This is even uglier. We have a problem where the kernel may not be * located at phys_base. However, initial __alloc_bootmem() calls need to @@ -73,7 +74,7 @@ extern unsigned long sparc_ramdisk_image64; extern unsigned int sparc_ramdisk_image; extern unsigned int sparc_ramdisk_size; -struct page *mem_map_zero; +struct page *mem_map_zero __read_mostly; int bigkernel = 0; @@ -318,6 +319,10 @@ extern void register_prom_callbacks(void); /* Exported for SMP bootup purposes. */ unsigned long kern_locked_tte_data; +/* Exported for kernel TLB miss handling in ktlb.S */ +unsigned long prom_pmd_phys __read_mostly; +unsigned int swapper_pgd_zero __read_mostly; + void __init early_pgtable_allocfail(char *type) { prom_printf("inherit_prom_mappings: Cannot alloc kernel %s.\n", type); @@ -364,7 +369,6 @@ static void inherit_prom_mappings(void) pmd_t *pmdp; pte_t *ptep; int node, n, i, tsz; - extern unsigned int obp_iaddr_patch[2], obp_daddr_patch[2]; node = prom_finddevice("/virtual-memory"); n = prom_getproplen(node, "translations"); @@ -434,13 +438,7 @@ static void inherit_prom_mappings(void) } } } - phys_page = __pa(prompmd); - obp_iaddr_patch[0] |= (phys_page >> 10); - obp_iaddr_patch[1] |= (phys_page & 0x3ff); - flushi((long)&obp_iaddr_patch[0]); - obp_daddr_patch[0] |= (phys_page >> 10); - obp_daddr_patch[1] |= (phys_page & 0x3ff); - flushi((long)&obp_daddr_patch[0]); + prom_pmd_phys = __pa(prompmd); /* Now fixup OBP's idea about where we really are mapped. */ prom_printf("Remapping the kernel... "); @@ -1407,8 +1405,6 @@ static unsigned long last_valid_pfn; void __init paging_init(void) { extern pmd_t swapper_pmd_dir[1024]; - extern unsigned int sparc64_vpte_patchme1[1]; - extern unsigned int sparc64_vpte_patchme2[1]; unsigned long alias_base = kern_base + PAGE_OFFSET; unsigned long second_alias_page = 0; unsigned long pt, flags, end_pfn, pages_avail; @@ -1502,11 +1498,7 @@ void __init paging_init(void) pud_set(pud_offset(&swapper_pg_dir[0], 0), swapper_pmd_dir + (shift / sizeof(pgd_t))); - sparc64_vpte_patchme1[0] |= - (((unsigned long)pgd_val(init_mm.pgd[0])) >> 10); - sparc64_vpte_patchme2[0] |= - (((unsigned long)pgd_val(init_mm.pgd[0])) & 0x3ff); - flushi((long)&sparc64_vpte_patchme1[0]); + swapper_pgd_zero = pgd_val(init_mm.pgd[0]); /* Setup bootmem... */ pages_avail = 0; From b206fc4c0997ee858bc3ed35f157d7c3cda54cfd Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 21 Sep 2005 22:31:13 -0700 Subject: [PATCH 010/352] [SPARC64]: Do not allocate prom translations using bootmem. Use __initdata instead. Signed-off-by: David S. Miller --- arch/sparc64/mm/init.c | 58 ++++++++++++++++++++---------------------- 1 file changed, 28 insertions(+), 30 deletions(-) diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c index aaf9a3eee997..141d4cc5fc53 100644 --- a/arch/sparc64/mm/init.c +++ b/arch/sparc64/mm/init.c @@ -310,6 +310,7 @@ struct linux_prom_translation { unsigned long size; unsigned long data; }; +static struct linux_prom_translation prom_trans[512] __initdata; extern unsigned long prom_boot_page; extern void prom_remap(unsigned long physpage, unsigned long virtpage, int mmu_ihandle); @@ -363,7 +364,6 @@ unsigned long prom_virt_to_phys(unsigned long promva, int *error) static void inherit_prom_mappings(void) { - struct linux_prom_translation *trans; unsigned long phys_page, tte_vaddr, tte_data; void (*remap_func)(unsigned long, unsigned long, int); pmd_t *pmdp; @@ -373,30 +373,27 @@ static void inherit_prom_mappings(void) node = prom_finddevice("/virtual-memory"); n = prom_getproplen(node, "translations"); if (n == 0 || n == -1) { - prom_printf("Couldn't get translation property\n"); + prom_printf("prom_mappings: Couldn't get size.\n"); prom_halt(); } - n += 5 * sizeof(struct linux_prom_translation); - for (tsz = 1; tsz < n; tsz <<= 1) - /* empty */; - trans = __alloc_bootmem(tsz, SMP_CACHE_BYTES, bootmap_base); - if (trans == NULL) { - prom_printf("inherit_prom_mappings: Cannot alloc translations.\n"); + n += 24 * sizeof(struct linux_prom_translation); + if (n > sizeof(prom_trans)) { + prom_printf("prom_mappings: prom_trans too small, " + "need %Zd bytes\n", n); prom_halt(); } - memset(trans, 0, tsz); + tsz = n; + if ((n = prom_getproperty(node, "translations", + (char *)&prom_trans[0], tsz)) == -1) { + prom_printf("prom_mappings: Couldn't get property.\n"); + prom_halt(); + } + n = n / sizeof(struct linux_prom_translation); - if ((n = prom_getproperty(node, "translations", (char *)trans, tsz)) == -1) { - prom_printf("Couldn't get translation property\n"); - prom_halt(); - } - n = n / sizeof(*trans); - - /* - * The obp translations are saved based on 8k pagesize, since obp can - * use a mixture of pagesizes. Misses to the 0xf0000000 - 0x100000000, - * ie obp range, are handled in entry.S and do not use the vpte scheme - * (see rant in inherit_locked_prom_mappings()). + /* The obp translations are saved based on 8k pagesize, since obp + * can use a mixture of pagesizes. Misses to the 0xf0000000 -> + * 0x100000000, ie obp range, are handled in entry.S and do not + * use the vpte scheme (see rant: inherit_locked_prom_mappings). */ #define OBP_PMD_SIZE 2048 prompmd = __alloc_bootmem(OBP_PMD_SIZE, OBP_PMD_SIZE, bootmap_base); @@ -406,9 +403,9 @@ static void inherit_prom_mappings(void) for (i = 0; i < n; i++) { unsigned long vaddr; - if (trans[i].virt >= LOW_OBP_ADDRESS && trans[i].virt < HI_OBP_ADDRESS) { - for (vaddr = trans[i].virt; - ((vaddr < trans[i].virt + trans[i].size) && + if (prom_trans[i].virt >= LOW_OBP_ADDRESS && prom_trans[i].virt < HI_OBP_ADDRESS) { + for (vaddr = prom_trans[i].virt; + ((vaddr < prom_trans[i].virt + prom_trans[i].size) && (vaddr < HI_OBP_ADDRESS)); vaddr += BASE_PAGE_SIZE) { unsigned long val; @@ -426,7 +423,7 @@ static void inherit_prom_mappings(void) ptep = (pte_t *)__pmd_page(*pmdp) + ((vaddr >> 13) & 0x3ff); - val = trans[i].data; + val = prom_trans[i].data; /* Clear diag TTE bits. */ if (tlb_type == spitfire) @@ -434,7 +431,7 @@ static void inherit_prom_mappings(void) set_pte_at(&init_mm, vaddr, ptep, __pte(val | _PAGE_MODIFIED)); - trans[i].data += BASE_PAGE_SIZE; + prom_trans[i].data += BASE_PAGE_SIZE; } } } @@ -571,15 +568,16 @@ static void inherit_prom_mappings(void) } /* Re-read translations property. */ - if ((n = prom_getproperty(node, "translations", (char *)trans, tsz)) == -1) { - prom_printf("Couldn't get translation property\n"); + if ((n = prom_getproperty(node, "translations", + (char *)&prom_trans[0], tsz)) == -1) { + prom_printf("prom_mappings: Can't reread prom_trans.\n"); prom_halt(); } - n = n / sizeof(*trans); + n = n / sizeof(struct linux_prom_translation); for (i = 0; i < n; i++) { - unsigned long vaddr = trans[i].virt; - unsigned long size = trans[i].size; + unsigned long vaddr = prom_trans[i].virt; + unsigned long size = prom_trans[i].size; if (vaddr < 0xf0000000UL) { unsigned long avoid_start = (unsigned long) KERNBASE; From 1d67e6501b8dba54ef8dcabebe2ad049b8ad0d67 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Thu, 22 Sep 2005 03:27:56 -0300 Subject: [PATCH 011/352] [LLC]: Make llc_frame_alloc take a net_device as an argument So as to set the newly created sk_buff ->dev member with it, that way we stop using dev_base->next, that is the wrong thing to do, as there may well be several interfaces being used with LLC. This was not such a big problem after all as most of the users of llc_alloc_frame were setting the correct dev, but this way code is reduced. This also fixes another bug in llc_station_ac_send_null_dsap_xid_c, that was not setting the skb->dev field. Signed-off-by: Jochen Friedrich Signed-off-by: Arnaldo Carvalho de Melo --- include/net/llc_sap.h | 3 +- net/llc/llc_c_ac.c | 105 +++++++++++++++++------------------------- net/llc/llc_s_ac.c | 6 +-- net/llc/llc_sap.c | 5 +- net/llc/llc_station.c | 8 ++-- 5 files changed, 52 insertions(+), 75 deletions(-) diff --git a/include/net/llc_sap.h b/include/net/llc_sap.h index 353baaa627f3..6dd4cdccca42 100644 --- a/include/net/llc_sap.h +++ b/include/net/llc_sap.h @@ -13,10 +13,11 @@ */ struct llc_sap; struct sk_buff; +struct net_device; extern void llc_sap_rtn_pdu(struct llc_sap *sap, struct sk_buff *skb); extern void llc_save_primitive(struct sk_buff* skb, unsigned char prim); -extern struct sk_buff *llc_alloc_frame(void); +extern struct sk_buff *llc_alloc_frame(struct net_device *dev); extern void llc_build_and_send_test_pkt(struct llc_sap *sap, struct sk_buff *skb, diff --git a/net/llc/llc_c_ac.c b/net/llc/llc_c_ac.c index b218be4c10ec..db98ea2113a5 100644 --- a/net/llc/llc_c_ac.c +++ b/net/llc/llc_c_ac.c @@ -217,13 +217,12 @@ int llc_conn_ac_stop_rej_tmr_if_data_flag_eq_2(struct sock *sk, int llc_conn_ac_send_disc_cmd_p_set_x(struct sock *sk, struct sk_buff *skb) { int rc = -ENOBUFS; - struct sk_buff *nskb = llc_alloc_frame(); + struct llc_sock *llc = llc_sk(sk); + struct sk_buff *nskb = llc_alloc_frame(llc->dev); if (nskb) { - struct llc_sock *llc = llc_sk(sk); struct llc_sap *sap = llc->sap; - nskb->dev = llc->dev; llc_pdu_header_init(nskb, LLC_PDU_TYPE_U, sap->laddr.lsap, llc->daddr.lsap, LLC_PDU_CMD); llc_pdu_init_as_disc_cmd(nskb, 1); @@ -243,14 +242,13 @@ free: int llc_conn_ac_send_dm_rsp_f_set_p(struct sock *sk, struct sk_buff *skb) { int rc = -ENOBUFS; - struct sk_buff *nskb = llc_alloc_frame(); + struct llc_sock *llc = llc_sk(sk); + struct sk_buff *nskb = llc_alloc_frame(llc->dev); if (nskb) { - struct llc_sock *llc = llc_sk(sk); struct llc_sap *sap = llc->sap; u8 f_bit; - nskb->dev = llc->dev; llc_pdu_decode_pf_bit(skb, &f_bit); llc_pdu_header_init(nskb, LLC_PDU_TYPE_U, sap->laddr.lsap, llc->daddr.lsap, LLC_PDU_RSP); @@ -270,14 +268,13 @@ free: int llc_conn_ac_send_dm_rsp_f_set_1(struct sock *sk, struct sk_buff *skb) { int rc = -ENOBUFS; - struct sk_buff *nskb = llc_alloc_frame(); + struct llc_sock *llc = llc_sk(sk); + struct sk_buff *nskb = llc_alloc_frame(llc->dev); if (nskb) { - struct llc_sock *llc = llc_sk(sk); struct llc_sap *sap = llc->sap; u8 f_bit = 1; - nskb->dev = llc->dev; llc_pdu_header_init(nskb, LLC_PDU_TYPE_U, sap->laddr.lsap, llc->daddr.lsap, LLC_PDU_RSP); llc_pdu_init_as_dm_rsp(nskb, f_bit); @@ -306,11 +303,10 @@ int llc_conn_ac_send_frmr_rsp_f_set_x(struct sock *sk, struct sk_buff *skb) llc_pdu_decode_pf_bit(skb, &f_bit); else f_bit = 0; - nskb = llc_alloc_frame(); + nskb = llc_alloc_frame(llc->dev); if (nskb) { struct llc_sap *sap = llc->sap; - nskb->dev = llc->dev; llc_pdu_header_init(nskb, LLC_PDU_TYPE_U, sap->laddr.lsap, llc->daddr.lsap, LLC_PDU_RSP); llc_pdu_init_as_frmr_rsp(nskb, pdu, f_bit, llc->vS, @@ -330,15 +326,14 @@ free: int llc_conn_ac_resend_frmr_rsp_f_set_0(struct sock *sk, struct sk_buff *skb) { int rc = -ENOBUFS; - struct sk_buff *nskb = llc_alloc_frame(); + struct llc_sock *llc = llc_sk(sk); + struct sk_buff *nskb = llc_alloc_frame(llc->dev); if (nskb) { u8 f_bit = 0; - struct llc_sock *llc = llc_sk(sk); struct llc_sap *sap = llc->sap; struct llc_pdu_sn *pdu = (struct llc_pdu_sn *)&llc->rx_pdu_hdr; - nskb->dev = llc->dev; llc_pdu_header_init(nskb, LLC_PDU_TYPE_U, sap->laddr.lsap, llc->daddr.lsap, LLC_PDU_RSP); llc_pdu_init_as_frmr_rsp(nskb, pdu, f_bit, llc->vS, @@ -360,15 +355,14 @@ int llc_conn_ac_resend_frmr_rsp_f_set_p(struct sock *sk, struct sk_buff *skb) u8 f_bit; int rc = -ENOBUFS; struct sk_buff *nskb; + struct llc_sock *llc = llc_sk(sk); llc_pdu_decode_pf_bit(skb, &f_bit); - nskb = llc_alloc_frame(); + nskb = llc_alloc_frame(llc->dev); if (nskb) { - struct llc_sock *llc = llc_sk(sk); struct llc_sap *sap = llc->sap; struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); - nskb->dev = llc->dev; llc_pdu_header_init(nskb, LLC_PDU_TYPE_U, sap->laddr.lsap, llc->daddr.lsap, LLC_PDU_RSP); llc_pdu_init_as_frmr_rsp(nskb, pdu, f_bit, llc->vS, @@ -451,13 +445,12 @@ int llc_conn_ac_resend_i_xxx_x_set_0_or_send_rr(struct sock *sk, u8 nr; struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); int rc = -ENOBUFS; - struct sk_buff *nskb = llc_alloc_frame(); + struct llc_sock *llc = llc_sk(sk); + struct sk_buff *nskb = llc_alloc_frame(llc->dev); if (nskb) { - struct llc_sock *llc = llc_sk(sk); struct llc_sap *sap = llc->sap; - nskb->dev = llc->dev; llc_pdu_header_init(nskb, LLC_PDU_TYPE_U, sap->laddr.lsap, llc->daddr.lsap, LLC_PDU_RSP); llc_pdu_init_as_rr_rsp(nskb, 0, llc->vR); @@ -487,13 +480,12 @@ int llc_conn_ac_resend_i_rsp_f_set_1(struct sock *sk, struct sk_buff *skb) int llc_conn_ac_send_rej_cmd_p_set_1(struct sock *sk, struct sk_buff *skb) { int rc = -ENOBUFS; - struct sk_buff *nskb = llc_alloc_frame(); + struct llc_sock *llc = llc_sk(sk); + struct sk_buff *nskb = llc_alloc_frame(llc->dev); if (nskb) { - struct llc_sock *llc = llc_sk(sk); struct llc_sap *sap = llc->sap; - nskb->dev = llc->dev; llc_pdu_header_init(nskb, LLC_PDU_TYPE_S, sap->laddr.lsap, llc->daddr.lsap, LLC_PDU_CMD); llc_pdu_init_as_rej_cmd(nskb, 1, llc->vR); @@ -512,14 +504,13 @@ free: int llc_conn_ac_send_rej_rsp_f_set_1(struct sock *sk, struct sk_buff *skb) { int rc = -ENOBUFS; - struct sk_buff *nskb = llc_alloc_frame(); + struct llc_sock *llc = llc_sk(sk); + struct sk_buff *nskb = llc_alloc_frame(llc->dev); if (nskb) { u8 f_bit = 1; - struct llc_sock *llc = llc_sk(sk); struct llc_sap *sap = llc->sap; - nskb->dev = llc->dev; llc_pdu_header_init(nskb, LLC_PDU_TYPE_S, sap->laddr.lsap, llc->daddr.lsap, LLC_PDU_RSP); llc_pdu_init_as_rej_rsp(nskb, f_bit, llc->vR); @@ -538,14 +529,13 @@ free: int llc_conn_ac_send_rej_xxx_x_set_0(struct sock *sk, struct sk_buff *skb) { int rc = -ENOBUFS; - struct sk_buff *nskb = llc_alloc_frame(); + struct llc_sock *llc = llc_sk(sk); + struct sk_buff *nskb = llc_alloc_frame(llc->dev); if (nskb) { - struct llc_sock *llc = llc_sk(sk); struct llc_sap *sap = llc->sap; u8 f_bit = 0; - nskb->dev = llc->dev; llc_pdu_header_init(nskb, LLC_PDU_TYPE_S, sap->laddr.lsap, llc->daddr.lsap, LLC_PDU_RSP); llc_pdu_init_as_rej_rsp(nskb, f_bit, llc->vR); @@ -564,13 +554,12 @@ free: int llc_conn_ac_send_rnr_cmd_p_set_1(struct sock *sk, struct sk_buff *skb) { int rc = -ENOBUFS; - struct sk_buff *nskb = llc_alloc_frame(); + struct llc_sock *llc = llc_sk(sk); + struct sk_buff *nskb = llc_alloc_frame(llc->dev); if (nskb) { - struct llc_sock *llc = llc_sk(sk); struct llc_sap *sap = llc->sap; - nskb->dev = llc->dev; llc_pdu_header_init(nskb, LLC_PDU_TYPE_S, sap->laddr.lsap, llc->daddr.lsap, LLC_PDU_CMD); llc_pdu_init_as_rnr_cmd(nskb, 1, llc->vR); @@ -589,14 +578,13 @@ free: int llc_conn_ac_send_rnr_rsp_f_set_1(struct sock *sk, struct sk_buff *skb) { int rc = -ENOBUFS; - struct sk_buff *nskb = llc_alloc_frame(); + struct llc_sock *llc = llc_sk(sk); + struct sk_buff *nskb = llc_alloc_frame(llc->dev); if (nskb) { - struct llc_sock *llc = llc_sk(sk); struct llc_sap *sap = llc->sap; u8 f_bit = 1; - nskb->dev = llc->dev; llc_pdu_header_init(nskb, LLC_PDU_TYPE_S, sap->laddr.lsap, llc->daddr.lsap, LLC_PDU_RSP); llc_pdu_init_as_rnr_rsp(nskb, f_bit, llc->vR); @@ -615,14 +603,13 @@ free: int llc_conn_ac_send_rnr_xxx_x_set_0(struct sock *sk, struct sk_buff *skb) { int rc = -ENOBUFS; - struct sk_buff *nskb = llc_alloc_frame(); + struct llc_sock *llc = llc_sk(sk); + struct sk_buff *nskb = llc_alloc_frame(llc->dev); if (nskb) { u8 f_bit = 0; - struct llc_sock *llc = llc_sk(sk); struct llc_sap *sap = llc->sap; - nskb->dev = llc->dev; llc_pdu_header_init(nskb, LLC_PDU_TYPE_S, sap->laddr.lsap, llc->daddr.lsap, LLC_PDU_RSP); llc_pdu_init_as_rnr_rsp(nskb, f_bit, llc->vR); @@ -653,13 +640,12 @@ int llc_conn_ac_set_remote_busy(struct sock *sk, struct sk_buff *skb) int llc_conn_ac_opt_send_rnr_xxx_x_set_0(struct sock *sk, struct sk_buff *skb) { int rc = -ENOBUFS; - struct sk_buff *nskb = llc_alloc_frame(); + struct llc_sock *llc = llc_sk(sk); + struct sk_buff *nskb = llc_alloc_frame(llc->dev); if (nskb) { - struct llc_sock *llc = llc_sk(sk); struct llc_sap *sap = llc->sap; - nskb->dev = llc->dev; llc_pdu_header_init(nskb, LLC_PDU_TYPE_S, sap->laddr.lsap, llc->daddr.lsap, LLC_PDU_RSP); llc_pdu_init_as_rnr_rsp(nskb, 0, llc->vR); @@ -678,13 +664,12 @@ free: int llc_conn_ac_send_rr_cmd_p_set_1(struct sock *sk, struct sk_buff *skb) { int rc = -ENOBUFS; - struct sk_buff *nskb = llc_alloc_frame(); + struct llc_sock *llc = llc_sk(sk); + struct sk_buff *nskb = llc_alloc_frame(llc->dev); if (nskb) { - struct llc_sock *llc = llc_sk(sk); struct llc_sap *sap = llc->sap; - nskb->dev = llc->dev; llc_pdu_header_init(nskb, LLC_PDU_TYPE_S, sap->laddr.lsap, llc->daddr.lsap, LLC_PDU_CMD); llc_pdu_init_as_rr_cmd(nskb, 1, llc->vR); @@ -703,14 +688,13 @@ free: int llc_conn_ac_send_rr_rsp_f_set_1(struct sock *sk, struct sk_buff *skb) { int rc = -ENOBUFS; - struct sk_buff *nskb = llc_alloc_frame(); + struct llc_sock *llc = llc_sk(sk); + struct sk_buff *nskb = llc_alloc_frame(llc->dev); if (nskb) { - struct llc_sock *llc = llc_sk(sk); struct llc_sap *sap = llc->sap; u8 f_bit = 1; - nskb->dev = llc->dev; llc_pdu_header_init(nskb, LLC_PDU_TYPE_S, sap->laddr.lsap, llc->daddr.lsap, LLC_PDU_RSP); llc_pdu_init_as_rr_rsp(nskb, f_bit, llc->vR); @@ -729,14 +713,13 @@ free: int llc_conn_ac_send_ack_rsp_f_set_1(struct sock *sk, struct sk_buff *skb) { int rc = -ENOBUFS; - struct sk_buff *nskb = llc_alloc_frame(); + struct llc_sock *llc = llc_sk(sk); + struct sk_buff *nskb = llc_alloc_frame(llc->dev); if (nskb) { - struct llc_sock *llc = llc_sk(sk); struct llc_sap *sap = llc->sap; u8 f_bit = 1; - nskb->dev = llc->dev; llc_pdu_header_init(nskb, LLC_PDU_TYPE_S, sap->laddr.lsap, llc->daddr.lsap, LLC_PDU_RSP); llc_pdu_init_as_rr_rsp(nskb, f_bit, llc->vR); @@ -755,13 +738,12 @@ free: int llc_conn_ac_send_rr_xxx_x_set_0(struct sock *sk, struct sk_buff *skb) { int rc = -ENOBUFS; - struct sk_buff *nskb = llc_alloc_frame(); + struct llc_sock *llc = llc_sk(sk); + struct sk_buff *nskb = llc_alloc_frame(llc->dev); if (nskb) { - struct llc_sock *llc = llc_sk(sk); struct llc_sap *sap = llc->sap; - nskb->dev = llc->dev; llc_pdu_header_init(nskb, LLC_PDU_TYPE_S, sap->laddr.lsap, llc->daddr.lsap, LLC_PDU_RSP); llc_pdu_init_as_rr_rsp(nskb, 0, llc->vR); @@ -780,13 +762,12 @@ free: int llc_conn_ac_send_ack_xxx_x_set_0(struct sock *sk, struct sk_buff *skb) { int rc = -ENOBUFS; - struct sk_buff *nskb = llc_alloc_frame(); + struct llc_sock *llc = llc_sk(sk); + struct sk_buff *nskb = llc_alloc_frame(llc->dev); if (nskb) { - struct llc_sock *llc = llc_sk(sk); struct llc_sap *sap = llc->sap; - nskb->dev = llc->dev; llc_pdu_header_init(nskb, LLC_PDU_TYPE_S, sap->laddr.lsap, llc->daddr.lsap, LLC_PDU_RSP); llc_pdu_init_as_rr_rsp(nskb, 0, llc->vR); @@ -815,8 +796,8 @@ void llc_conn_set_p_flag(struct sock *sk, u8 value) int llc_conn_ac_send_sabme_cmd_p_set_x(struct sock *sk, struct sk_buff *skb) { int rc = -ENOBUFS; - struct sk_buff *nskb = llc_alloc_frame(); struct llc_sock *llc = llc_sk(sk); + struct sk_buff *nskb = llc_alloc_frame(llc->dev); if (nskb) { struct llc_sap *sap = llc->sap; @@ -824,7 +805,6 @@ int llc_conn_ac_send_sabme_cmd_p_set_x(struct sock *sk, struct sk_buff *skb) if (llc->dev->flags & IFF_LOOPBACK) dmac = llc->dev->dev_addr; - nskb->dev = llc->dev; llc_pdu_header_init(nskb, LLC_PDU_TYPE_U, sap->laddr.lsap, llc->daddr.lsap, LLC_PDU_CMD); llc_pdu_init_as_sabme_cmd(nskb, 1); @@ -845,11 +825,11 @@ int llc_conn_ac_send_ua_rsp_f_set_p(struct sock *sk, struct sk_buff *skb) { u8 f_bit; int rc = -ENOBUFS; - struct sk_buff *nskb = llc_alloc_frame(); + struct llc_sock *llc = llc_sk(sk); + struct sk_buff *nskb = llc_alloc_frame(llc->dev); llc_pdu_decode_pf_bit(skb, &f_bit); if (nskb) { - struct llc_sock *llc = llc_sk(sk); struct llc_sap *sap = llc->sap; nskb->dev = llc->dev; @@ -1001,13 +981,12 @@ static int llc_conn_ac_send_rr_rsp_f_set_ackpf(struct sock *sk, struct sk_buff *skb) { int rc = -ENOBUFS; - struct sk_buff *nskb = llc_alloc_frame(); + struct llc_sock *llc = llc_sk(sk); + struct sk_buff *nskb = llc_alloc_frame(llc->dev); if (nskb) { - struct llc_sock *llc = llc_sk(sk); struct llc_sap *sap = llc->sap; - nskb->dev = llc->dev; llc_pdu_header_init(nskb, LLC_PDU_TYPE_S, sap->laddr.lsap, llc->daddr.lsap, LLC_PDU_RSP); llc_pdu_init_as_rr_rsp(nskb, llc->ack_pf, llc->vR); diff --git a/net/llc/llc_s_ac.c b/net/llc/llc_s_ac.c index ed8ba7de6122..270b2f2030cd 100644 --- a/net/llc/llc_s_ac.c +++ b/net/llc/llc_s_ac.c @@ -103,10 +103,9 @@ int llc_sap_action_send_xid_r(struct llc_sap *sap, struct sk_buff *skb) llc_pdu_decode_sa(skb, mac_da); llc_pdu_decode_da(skb, mac_sa); llc_pdu_decode_ssap(skb, &dsap); - nskb = llc_alloc_frame(); + nskb = llc_alloc_frame(skb->dev); if (!nskb) goto out; - nskb->dev = skb->dev; llc_pdu_header_init(nskb, LLC_PDU_TYPE_U, sap->laddr.lsap, dsap, LLC_PDU_RSP); llc_pdu_init_as_xid_rsp(nskb, LLC_XID_NULL_CLASS_2, 0); @@ -149,10 +148,9 @@ int llc_sap_action_send_test_r(struct llc_sap *sap, struct sk_buff *skb) llc_pdu_decode_sa(skb, mac_da); llc_pdu_decode_da(skb, mac_sa); llc_pdu_decode_ssap(skb, &dsap); - nskb = llc_alloc_frame(); + nskb = llc_alloc_frame(skb->dev); if (!nskb) goto out; - nskb->dev = skb->dev; llc_pdu_header_init(nskb, LLC_PDU_TYPE_U, sap->laddr.lsap, dsap, LLC_PDU_RSP); llc_pdu_init_as_test_rsp(nskb, skb); diff --git a/net/llc/llc_sap.c b/net/llc/llc_sap.c index 34228ef14985..0adaa289bf0a 100644 --- a/net/llc/llc_sap.c +++ b/net/llc/llc_sap.c @@ -26,11 +26,12 @@ /** * llc_alloc_frame - allocates sk_buff for frame + * @dev: network device this skb will be sent over * * Allocates an sk_buff for frame and initializes sk_buff fields. * Returns allocated skb or %NULL when out of memory. */ -struct sk_buff *llc_alloc_frame(void) +struct sk_buff *llc_alloc_frame(struct net_device *dev) { struct sk_buff *skb = alloc_skb(128, GFP_ATOMIC); @@ -38,7 +39,7 @@ struct sk_buff *llc_alloc_frame(void) skb_reserve(skb, 50); skb->nh.raw = skb->h.raw = skb->data; skb->protocol = htons(ETH_P_802_2); - skb->dev = dev_base->next; + skb->dev = dev; skb->mac.raw = skb->head; } return skb; diff --git a/net/llc/llc_station.c b/net/llc/llc_station.c index 8fe48a24bad5..85a7ac276141 100644 --- a/net/llc/llc_station.c +++ b/net/llc/llc_station.c @@ -249,7 +249,7 @@ static int llc_station_ac_inc_xid_r_cnt_by_1(struct sk_buff *skb) static int llc_station_ac_send_null_dsap_xid_c(struct sk_buff *skb) { int rc = 1; - struct sk_buff *nskb = llc_alloc_frame(); + struct sk_buff *nskb = llc_alloc_frame(skb->dev); if (!nskb) goto out; @@ -270,12 +270,11 @@ static int llc_station_ac_send_xid_r(struct sk_buff *skb) { u8 mac_da[ETH_ALEN], dsap; int rc = 1; - struct sk_buff* nskb = llc_alloc_frame(); + struct sk_buff* nskb = llc_alloc_frame(skb->dev); if (!nskb) goto out; rc = 0; - nskb->dev = skb->dev; llc_pdu_decode_sa(skb, mac_da); llc_pdu_decode_ssap(skb, &dsap); llc_pdu_header_init(nskb, LLC_PDU_TYPE_U, 0, dsap, LLC_PDU_RSP); @@ -295,12 +294,11 @@ static int llc_station_ac_send_test_r(struct sk_buff *skb) { u8 mac_da[ETH_ALEN], dsap; int rc = 1; - struct sk_buff *nskb = llc_alloc_frame(); + struct sk_buff *nskb = llc_alloc_frame(skb->dev); if (!nskb) goto out; rc = 0; - nskb->dev = skb->dev; llc_pdu_decode_sa(skb, mac_da); llc_pdu_decode_ssap(skb, &dsap); llc_pdu_header_init(nskb, LLC_PDU_TYPE_U, 0, dsap, LLC_PDU_RSP); From bdcc66cca89cc2e97e93054d139b2e9a2b2ec1a7 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Thu, 22 Sep 2005 03:38:15 -0300 Subject: [PATCH 012/352] [LLC]: Simplify llc_c_ac code, removing unneeded assignments to variables Signed-off-by: Jochen Friedrich Signed-off-by: Arnaldo Carvalho de Melo --- net/llc/llc_c_ac.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) diff --git a/net/llc/llc_c_ac.c b/net/llc/llc_c_ac.c index db98ea2113a5..309c5682e58d 100644 --- a/net/llc/llc_c_ac.c +++ b/net/llc/llc_c_ac.c @@ -120,10 +120,8 @@ int llc_conn_ac_disc_ind(struct sock *sk, struct sk_buff *skb) reason = LLC_DISC_REASON_RX_DISC_CMD_PDU; } else if (ev->type == LLC_CONN_EV_TYPE_ACK_TMR) reason = LLC_DISC_REASON_ACK_TMR_EXP; - else { - reason = 0; + else rc = -EINVAL; - } if (!rc) { ev->reason = reason; ev->ind_prim = LLC_DISC_PRIM; @@ -160,9 +158,6 @@ int llc_conn_ac_rst_ind(struct sock *sk, struct sk_buff *skb) LLC_U_PDU_CMD(pdu) == LLC_2_PDU_CMD_SABME) { reason = LLC_RESET_REASON_REMOTE; rc = 0; - } else { - reason = 0; - rc = 1; } break; case LLC_CONN_EV_TYPE_ACK_TMR: @@ -172,8 +167,7 @@ int llc_conn_ac_rst_ind(struct sock *sk, struct sk_buff *skb) if (llc->retry_count > llc->n2) { reason = LLC_RESET_REASON_LOCAL; rc = 0; - } else - rc = 1; + } break; } if (!rc) { From 838a75dae05d59b7d7894c299508ae3d7dea9630 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Thu, 22 Sep 2005 03:44:23 -0300 Subject: [PATCH 013/352] [LLC]: Remove unneeded f_bit variables Signed-off-by: Jochen Friedrich Signed-off-by: Arnaldo Carvalho de Melo --- net/llc/llc_c_ac.c | 21 +++++++-------------- 1 file changed, 7 insertions(+), 14 deletions(-) diff --git a/net/llc/llc_c_ac.c b/net/llc/llc_c_ac.c index 309c5682e58d..9abaecceea68 100644 --- a/net/llc/llc_c_ac.c +++ b/net/llc/llc_c_ac.c @@ -267,11 +267,10 @@ int llc_conn_ac_send_dm_rsp_f_set_1(struct sock *sk, struct sk_buff *skb) if (nskb) { struct llc_sap *sap = llc->sap; - u8 f_bit = 1; llc_pdu_header_init(nskb, LLC_PDU_TYPE_U, sap->laddr.lsap, llc->daddr.lsap, LLC_PDU_RSP); - llc_pdu_init_as_dm_rsp(nskb, f_bit); + llc_pdu_init_as_dm_rsp(nskb, 1); rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac); if (rc) goto free; @@ -324,13 +323,12 @@ int llc_conn_ac_resend_frmr_rsp_f_set_0(struct sock *sk, struct sk_buff *skb) struct sk_buff *nskb = llc_alloc_frame(llc->dev); if (nskb) { - u8 f_bit = 0; struct llc_sap *sap = llc->sap; struct llc_pdu_sn *pdu = (struct llc_pdu_sn *)&llc->rx_pdu_hdr; llc_pdu_header_init(nskb, LLC_PDU_TYPE_U, sap->laddr.lsap, llc->daddr.lsap, LLC_PDU_RSP); - llc_pdu_init_as_frmr_rsp(nskb, pdu, f_bit, llc->vS, + llc_pdu_init_as_frmr_rsp(nskb, pdu, 0, llc->vS, llc->vR, INCORRECT); rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac); if (rc) @@ -502,12 +500,11 @@ int llc_conn_ac_send_rej_rsp_f_set_1(struct sock *sk, struct sk_buff *skb) struct sk_buff *nskb = llc_alloc_frame(llc->dev); if (nskb) { - u8 f_bit = 1; struct llc_sap *sap = llc->sap; llc_pdu_header_init(nskb, LLC_PDU_TYPE_S, sap->laddr.lsap, llc->daddr.lsap, LLC_PDU_RSP); - llc_pdu_init_as_rej_rsp(nskb, f_bit, llc->vR); + llc_pdu_init_as_rej_rsp(nskb, 1, llc->vR); rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac); if (rc) goto free; @@ -528,11 +525,10 @@ int llc_conn_ac_send_rej_xxx_x_set_0(struct sock *sk, struct sk_buff *skb) if (nskb) { struct llc_sap *sap = llc->sap; - u8 f_bit = 0; llc_pdu_header_init(nskb, LLC_PDU_TYPE_S, sap->laddr.lsap, llc->daddr.lsap, LLC_PDU_RSP); - llc_pdu_init_as_rej_rsp(nskb, f_bit, llc->vR); + llc_pdu_init_as_rej_rsp(nskb, 0, llc->vR); rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac); if (rc) goto free; @@ -577,11 +573,10 @@ int llc_conn_ac_send_rnr_rsp_f_set_1(struct sock *sk, struct sk_buff *skb) if (nskb) { struct llc_sap *sap = llc->sap; - u8 f_bit = 1; llc_pdu_header_init(nskb, LLC_PDU_TYPE_S, sap->laddr.lsap, llc->daddr.lsap, LLC_PDU_RSP); - llc_pdu_init_as_rnr_rsp(nskb, f_bit, llc->vR); + llc_pdu_init_as_rnr_rsp(nskb, 1, llc->vR); rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac); if (rc) goto free; @@ -601,12 +596,11 @@ int llc_conn_ac_send_rnr_xxx_x_set_0(struct sock *sk, struct sk_buff *skb) struct sk_buff *nskb = llc_alloc_frame(llc->dev); if (nskb) { - u8 f_bit = 0; struct llc_sap *sap = llc->sap; llc_pdu_header_init(nskb, LLC_PDU_TYPE_S, sap->laddr.lsap, llc->daddr.lsap, LLC_PDU_RSP); - llc_pdu_init_as_rnr_rsp(nskb, f_bit, llc->vR); + llc_pdu_init_as_rnr_rsp(nskb, 0, llc->vR); rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac); if (rc) goto free; @@ -712,11 +706,10 @@ int llc_conn_ac_send_ack_rsp_f_set_1(struct sock *sk, struct sk_buff *skb) if (nskb) { struct llc_sap *sap = llc->sap; - u8 f_bit = 1; llc_pdu_header_init(nskb, LLC_PDU_TYPE_S, sap->laddr.lsap, llc->daddr.lsap, LLC_PDU_RSP); - llc_pdu_init_as_rr_rsp(nskb, f_bit, llc->vR); + llc_pdu_init_as_rr_rsp(nskb, 1, llc->vR); rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac); if (rc) goto free; From e0dd55190ff8c6485a721c9473ded92d03c0fe01 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Thu, 22 Sep 2005 03:50:15 -0300 Subject: [PATCH 014/352] [LLC]: introduce llc_conn_tmr_common_cb, to avoid code duplication Signed-off-by: Jochen Friedrich Signed-off-by: Arnaldo Carvalho de Melo --- net/llc/llc_c_ac.c | 48 ++++++++++------------------------------------ 1 file changed, 10 insertions(+), 38 deletions(-) diff --git a/net/llc/llc_c_ac.c b/net/llc/llc_c_ac.c index 9abaecceea68..50c827e13a9f 100644 --- a/net/llc/llc_c_ac.c +++ b/net/llc/llc_c_ac.c @@ -1326,7 +1326,7 @@ int llc_conn_ac_inc_vs_by_1(struct sock *sk, struct sk_buff *skb) return 0; } -void llc_conn_pf_cycle_tmr_cb(unsigned long timeout_data) +static void llc_conn_tmr_common_cb(unsigned long timeout_data, u8 type) { struct sock *sk = (struct sock *)timeout_data; struct sk_buff *skb = alloc_skb(0, GFP_ATOMIC); @@ -1336,58 +1336,30 @@ void llc_conn_pf_cycle_tmr_cb(unsigned long timeout_data) struct llc_conn_state_ev *ev = llc_conn_ev(skb); skb->sk = sk; - ev->type = LLC_CONN_EV_TYPE_P_TMR; + ev->type = type; llc_process_tmr_ev(sk, skb); } bh_unlock_sock(sk); } +void llc_conn_pf_cycle_tmr_cb(unsigned long timeout_data) +{ + llc_conn_tmr_common_cb(timeout_data, LLC_CONN_EV_TYPE_P_TMR); +} + void llc_conn_busy_tmr_cb(unsigned long timeout_data) { - struct sock *sk = (struct sock *)timeout_data; - struct sk_buff *skb = alloc_skb(0, GFP_ATOMIC); - - bh_lock_sock(sk); - if (skb) { - struct llc_conn_state_ev *ev = llc_conn_ev(skb); - - skb->sk = sk; - ev->type = LLC_CONN_EV_TYPE_BUSY_TMR; - llc_process_tmr_ev(sk, skb); - } - bh_unlock_sock(sk); + llc_conn_tmr_common_cb(timeout_data, LLC_CONN_EV_TYPE_BUSY_TMR); } void llc_conn_ack_tmr_cb(unsigned long timeout_data) { - struct sock* sk = (struct sock *)timeout_data; - struct sk_buff *skb = alloc_skb(0, GFP_ATOMIC); - - bh_lock_sock(sk); - if (skb) { - struct llc_conn_state_ev *ev = llc_conn_ev(skb); - - skb->sk = sk; - ev->type = LLC_CONN_EV_TYPE_ACK_TMR; - llc_process_tmr_ev(sk, skb); - } - bh_unlock_sock(sk); + llc_conn_tmr_common_cb(timeout_data, LLC_CONN_EV_TYPE_ACK_TMR); } void llc_conn_rej_tmr_cb(unsigned long timeout_data) { - struct sock *sk = (struct sock *)timeout_data; - struct sk_buff *skb = alloc_skb(0, GFP_ATOMIC); - - bh_lock_sock(sk); - if (skb) { - struct llc_conn_state_ev *ev = llc_conn_ev(skb); - - skb->sk = sk; - ev->type = LLC_CONN_EV_TYPE_REJ_TMR; - llc_process_tmr_ev(sk, skb); - } - bh_unlock_sock(sk); + llc_conn_tmr_common_cb(timeout_data, LLC_CONN_EV_TYPE_REJ_TMR); } int llc_conn_ac_rst_vs(struct sock *sk, struct sk_buff *skb) From 774ccb4f64020dad40d38efa63685220e1f245cc Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Thu, 22 Sep 2005 03:53:35 -0300 Subject: [PATCH 015/352] [LLC]: Remove unneeded temp net_device variables Signed-off-by: Jochen Friedrich Signed-off-by: Arnaldo Carvalho de Melo --- net/llc/af_llc.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c index 66f55e514b56..2975d88eeb0a 100644 --- a/net/llc/af_llc.c +++ b/net/llc/af_llc.c @@ -404,7 +404,6 @@ static int llc_ui_connect(struct socket *sock, struct sockaddr *uaddr, struct sock *sk = sock->sk; struct llc_sock *llc = llc_sk(sk); struct sockaddr_llc *addr = (struct sockaddr_llc *)uaddr; - struct net_device *dev; int rc = -EINVAL; lock_sock(sk); @@ -422,7 +421,6 @@ static int llc_ui_connect(struct socket *sock, struct sockaddr *uaddr, llc->daddr.lsap = addr->sllc_sap; memcpy(llc->daddr.mac, addr->sllc_mac, IFHWADDRLEN); } - dev = llc->dev; if (sk->sk_type != SOCK_STREAM) goto out; rc = -EALREADY; @@ -431,7 +429,7 @@ static int llc_ui_connect(struct socket *sock, struct sockaddr *uaddr, sock->state = SS_CONNECTING; sk->sk_state = TCP_SYN_SENT; llc->link = llc_ui_next_link_no(llc->sap->laddr.lsap); - rc = llc_establish_connection(sk, dev->dev_addr, + rc = llc_establish_connection(sk, llc->dev->dev_addr, addr->sllc_mac, addr->sllc_sap); if (rc) { dprintk("%s: llc_ui_send_conn failed :-(\n", __FUNCTION__); @@ -740,7 +738,6 @@ static int llc_ui_sendmsg(struct kiocb *iocb, struct socket *sock, struct sockaddr_llc *addr = (struct sockaddr_llc *)msg->msg_name; int flags = msg->msg_flags; int noblock = flags & MSG_DONTWAIT; - struct net_device *dev; struct sk_buff *skb; size_t size = 0; int rc = -EINVAL, copied = 0, hdrlen; @@ -763,11 +760,10 @@ static int llc_ui_sendmsg(struct kiocb *iocb, struct socket *sock, if (rc) goto release; } - dev = llc->dev; - hdrlen = dev->hard_header_len + llc_ui_header_len(sk, addr); + hdrlen = llc->dev->hard_header_len + llc_ui_header_len(sk, addr); size = hdrlen + len; - if (size > dev->mtu) - size = dev->mtu; + if (size > llc->dev->mtu) + size = llc->dev->mtu; copied = size - hdrlen; release_sock(sk); skb = sock_alloc_send_skb(sk, size, noblock, &rc); @@ -775,7 +771,7 @@ static int llc_ui_sendmsg(struct kiocb *iocb, struct socket *sock, if (!skb) goto release; skb->sk = sk; - skb->dev = dev; + skb->dev = llc->dev; skb->protocol = llc_proto_type(addr->sllc_arphrd); skb_reserve(skb, hdrlen); rc = memcpy_fromiovec(skb_put(skb, copied), msg->msg_iov, copied); From 5a770c0262262e96979fe05d5c2fa1d1f409dbdc Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Thu, 22 Sep 2005 03:56:26 -0300 Subject: [PATCH 016/352] [LLC]: Update comments for llc_ui_bind and llc_ui_autobind to match new behaviour Signed-off-by: Jochen Friedrich Signed-off-by: Arnaldo Carvalho de Melo --- net/llc/af_llc.c | 25 +++++++------------------ 1 file changed, 7 insertions(+), 18 deletions(-) diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c index 2975d88eeb0a..81a53791ed9c 100644 --- a/net/llc/af_llc.c +++ b/net/llc/af_llc.c @@ -231,20 +231,13 @@ out: } /** - * llc_ui_autobind - Bind a socket to a specific address. - * @sk: Socket to bind an address to. - * @addr: Address the user wants the socket bound to. + * llc_ui_autobind - automatically bind a socket to a sap + * @sock: socket to bind + * @addr: address to connect to + * + * Used by llc_ui_connect and llc_ui_sendmsg when the user hasn't + * specifically used llc_ui_bind to bind to an specific address/sap * - * Bind a socket to a specific address. For llc a user is able to bind to - * a specific sap only or mac + sap. If the user only specifies a sap and - * a null dmac (all zeros) the user is attempting to bind to an entire - * sap. This will stop anyone else on the local system from using that - * sap. If someone else has a mac + sap open the bind to null + sap will - * fail. - * If the user desires to bind to a specific mac + sap, it is possible to - * have multiple sap connections via multiple macs. - * Bind and autobind for that matter must enforce the correct sap usage - * otherwise all hell will break loose. * Returns: 0 upon success, negative otherwise. */ static int llc_ui_autobind(struct socket *sock, struct sockaddr_llc *addr) @@ -285,11 +278,7 @@ out: * @addrlen: Length of the uaddr structure. * * Bind a socket to a specific address. For llc a user is able to bind to - * a specific sap only or mac + sap. If the user only specifies a sap and - * a null dmac (all zeros) the user is attempting to bind to an entire - * sap. This will stop anyone else on the local system from using that - * sap. If someone else has a mac + sap open the bind to null + sap will - * fail. + * a specific sap only or mac + sap. * If the user desires to bind to a specific mac + sap, it is possible to * have multiple sap connections via multiple macs. * Bind and autobind for that matter must enforce the correct sap usage From 0eb8017242cb7e8b18af4751b03646436b8f90e3 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Thu, 22 Sep 2005 03:57:55 -0300 Subject: [PATCH 017/352] [LLC]: Mark llc_find_next_offset as __init, saving some more bytes Signed-off-by: Jochen Friedrich Signed-off-by: Arnaldo Carvalho de Melo --- net/llc/llc_conn.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/net/llc/llc_conn.c b/net/llc/llc_conn.c index 4c644bc70eae..1f659e56d8e2 100644 --- a/net/llc/llc_conn.c +++ b/net/llc/llc_conn.c @@ -544,14 +544,14 @@ u8 llc_data_accept_state(u8 state) } /** - * find_next_offset - finds offset for next category of transitions + * llc_find_next_offset - finds offset for next category of transitions * @state: state table. * @offset: start offset. * * Finds offset of next category of transitions in transition table. * Returns the start index of next category. */ -static u16 find_next_offset(struct llc_conn_state *state, u16 offset) +static u16 __init llc_find_next_offset(struct llc_conn_state *state, u16 offset) { u16 cnt = 0; struct llc_conn_state_trans **next_trans; @@ -578,8 +578,8 @@ void __init llc_build_offset_table(void) next_offset = 0; for (ev_type = 0; ev_type < NBR_CONN_EV; ev_type++) { llc_offset_table[state][ev_type] = next_offset; - next_offset += find_next_offset(curr_state, - next_offset) + 1; + next_offset += llc_find_next_offset(curr_state, + next_offset) + 1; } } } From af426d327c38bcb8cbb87c60134d42d2e93b20cc Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Thu, 22 Sep 2005 03:59:22 -0300 Subject: [PATCH 018/352] [LLC]: Help the compiler with likely/unlikely, saving some more bytes Signed-off-by: Jochen Friedrich Signed-off-by: Arnaldo Carvalho de Melo --- net/llc/af_llc.c | 37 +++++++++++++++++++------------------ net/llc/llc_conn.c | 12 ++++++------ net/llc/llc_input.c | 2 +- 3 files changed, 26 insertions(+), 25 deletions(-) diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c index 81a53791ed9c..aed61e6376ed 100644 --- a/net/llc/af_llc.c +++ b/net/llc/af_llc.c @@ -155,7 +155,7 @@ static int llc_ui_create(struct socket *sock, int protocol) struct sock *sk; int rc = -ESOCKTNOSUPPORT; - if (sock->type == SOCK_DGRAM || sock->type == SOCK_STREAM) { + if (likely(sock->type == SOCK_DGRAM || sock->type == SOCK_STREAM)) { rc = -ENOMEM; sk = llc_sk_alloc(PF_LLC, GFP_KERNEL, &llc_proto); if (sk) { @@ -177,7 +177,7 @@ static int llc_ui_release(struct socket *sock) struct sock *sk = sock->sk; struct llc_sock *llc; - if (!sk) + if (unlikely(sk == NULL)) goto out; sock_hold(sk); lock_sock(sk); @@ -294,10 +294,10 @@ static int llc_ui_bind(struct socket *sock, struct sockaddr *uaddr, int addrlen) int rc = -EINVAL; dprintk("%s: binding %02X\n", __FUNCTION__, addr->sllc_sap); - if (!sock_flag(sk, SOCK_ZAPPED) || addrlen != sizeof(*addr)) + if (unlikely(!sock_flag(sk, SOCK_ZAPPED) || addrlen != sizeof(*addr))) goto out; rc = -EAFNOSUPPORT; - if (addr->sllc_family != AF_LLC) + if (unlikely(addr->sllc_family != AF_LLC)) goto out; if (!addr->sllc_sap) { rc = -EUSERS; @@ -358,7 +358,7 @@ static int llc_ui_shutdown(struct socket *sock, int how) int rc = -ENOTCONN; lock_sock(sk); - if (sk->sk_state != TCP_ESTABLISHED) + if (unlikely(sk->sk_state != TCP_ESTABLISHED)) goto out; rc = -EINVAL; if (how != 2) @@ -396,10 +396,15 @@ static int llc_ui_connect(struct socket *sock, struct sockaddr *uaddr, int rc = -EINVAL; lock_sock(sk); - if (addrlen != sizeof(*addr)) + if (unlikely(addrlen != sizeof(*addr))) goto out; rc = -EAFNOSUPPORT; - if (addr->sllc_family != AF_LLC) + if (unlikely(addr->sllc_family != AF_LLC)) + goto out; + if (unlikely(sk->sk_type != SOCK_STREAM)) + goto out; + rc = -EALREADY; + if (unlikely(sock->state == SS_CONNECTING)) goto out; /* bind connection to sap if user hasn't done it. */ if (sock_flag(sk, SOCK_ZAPPED)) { @@ -410,11 +415,6 @@ static int llc_ui_connect(struct socket *sock, struct sockaddr *uaddr, llc->daddr.lsap = addr->sllc_sap; memcpy(llc->daddr.mac, addr->sllc_mac, IFHWADDRLEN); } - if (sk->sk_type != SOCK_STREAM) - goto out; - rc = -EALREADY; - if (sock->state == SS_CONNECTING) - goto out; sock->state = SS_CONNECTING; sk->sk_state = TCP_SYN_SENT; llc->link = llc_ui_next_link_no(llc->sap->laddr.lsap); @@ -448,10 +448,10 @@ static int llc_ui_listen(struct socket *sock, int backlog) int rc = -EINVAL; lock_sock(sk); - if (sock->state != SS_UNCONNECTED) + if (unlikely(sock->state != SS_UNCONNECTED)) goto out; rc = -EOPNOTSUPP; - if (sk->sk_type != SOCK_STREAM) + if (unlikely(sk->sk_type != SOCK_STREAM)) goto out; rc = -EAGAIN; if (sock_flag(sk, SOCK_ZAPPED)) @@ -614,10 +614,11 @@ static int llc_ui_accept(struct socket *sock, struct socket *newsock, int flags) dprintk("%s: accepting on %02X\n", __FUNCTION__, llc_sk(sk)->laddr.lsap); lock_sock(sk); - if (sk->sk_type != SOCK_STREAM) + if (unlikely(sk->sk_type != SOCK_STREAM)) goto out; rc = -EINVAL; - if (sock->state != SS_UNCONNECTED || sk->sk_state != TCP_LISTEN) + if (unlikely(sock->state != SS_UNCONNECTED || + sk->sk_state != TCP_LISTEN)) goto out; /* wait for a connection to arrive. */ rc = llc_ui_wait_for_data(sk, sk->sk_rcvtimeo); @@ -880,7 +881,7 @@ static int llc_ui_setsockopt(struct socket *sock, int level, int optname, int rc = -EINVAL, opt; lock_sock(sk); - if (level != SOL_LLC || optlen != sizeof(int)) + if (unlikely(level != SOL_LLC || optlen != sizeof(int))) goto out; rc = get_user(opt, (int __user *)optval); if (rc) @@ -955,7 +956,7 @@ static int llc_ui_getsockopt(struct socket *sock, int level, int optname, int val = 0, len = 0, rc = -EINVAL; lock_sock(sk); - if (level != SOL_LLC) + if (unlikely(level != SOL_LLC)) goto out; rc = get_user(len, optlen); if (rc) diff --git a/net/llc/llc_conn.c b/net/llc/llc_conn.c index 1f659e56d8e2..ce7b893ed1ab 100644 --- a/net/llc/llc_conn.c +++ b/net/llc/llc_conn.c @@ -64,12 +64,12 @@ int llc_conn_state_process(struct sock *sk, struct sk_buff *skb) skb_get(skb); ev->ind_prim = ev->cfm_prim = 0; rc = llc_conn_service(sk, skb); /* sending event to state machine */ - if (rc) { + if (unlikely(rc != 0)) { printk(KERN_ERR "%s: llc_conn_service failed\n", __FUNCTION__); goto out_kfree_skb; } - if (!ev->ind_prim && !ev->cfm_prim) { + if (unlikely(!ev->ind_prim && !ev->cfm_prim)) { /* indicate or confirm not required */ /* XXX this is not very pretty, perhaps we should store * XXX indicate/confirm-needed state in the llc_conn_state_ev @@ -80,7 +80,7 @@ int llc_conn_state_process(struct sock *sk, struct sk_buff *skb) goto out_skb_put; } - if (ev->ind_prim && ev->cfm_prim) /* Paranoia */ + if (unlikely(ev->ind_prim && ev->cfm_prim)) /* Paranoia */ skb_get(skb); switch (ev->ind_prim) { @@ -762,14 +762,14 @@ static int llc_backlog_rcv(struct sock *sk, struct sk_buff *skb) int rc = 0; struct llc_sock *llc = llc_sk(sk); - if (llc_backlog_type(skb) == LLC_PACKET) { - if (llc->state > 1) /* not closed */ + if (likely(llc_backlog_type(skb) == LLC_PACKET)) { + if (likely(llc->state > 1)) /* not closed */ rc = llc_conn_rcv(sk, skb); else goto out_kfree_skb; } else if (llc_backlog_type(skb) == LLC_EVENT) { /* timer expiration event */ - if (llc->state > 1) /* not closed */ + if (likely(llc->state > 1)) /* not closed */ rc = llc_conn_state_process(sk, skb); else goto out_kfree_skb; diff --git a/net/llc/llc_input.c b/net/llc/llc_input.c index 13b46240b7a1..60c1acac7c97 100644 --- a/net/llc/llc_input.c +++ b/net/llc/llc_input.c @@ -101,7 +101,7 @@ static inline int llc_fixup_skb(struct sk_buff *skb) u8 llc_len = 2; struct llc_pdu_sn *pdu; - if (!pskb_may_pull(skb, sizeof(*pdu))) + if (unlikely(!pskb_may_pull(skb, sizeof(*pdu)))) return 0; pdu = (struct llc_pdu_sn *)skb->data; From b9441fc3375a6637a81bc1635c5e12da4dc7acc6 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Thu, 22 Sep 2005 04:09:45 -0300 Subject: [PATCH 019/352] [LLC]: Use const in llc_c_ev.c Signed-off-by: Jochen Friedrich Signed-off-by: Arnaldo Carvalho de Melo --- net/llc/llc_c_ev.c | 134 +++++++++++++++++++++++---------------------- 1 file changed, 68 insertions(+), 66 deletions(-) diff --git a/net/llc/llc_c_ev.c b/net/llc/llc_c_ev.c index d5bdb53a348f..c53b82324268 100644 --- a/net/llc/llc_c_ev.c +++ b/net/llc/llc_c_ev.c @@ -99,7 +99,7 @@ out: int llc_conn_ev_conn_req(struct sock *sk, struct sk_buff *skb) { - struct llc_conn_state_ev *ev = llc_conn_ev(skb); + const struct llc_conn_state_ev *ev = llc_conn_ev(skb); return ev->prim == LLC_CONN_PRIM && ev->prim_type == LLC_PRIM_TYPE_REQ ? 0 : 1; @@ -107,7 +107,7 @@ int llc_conn_ev_conn_req(struct sock *sk, struct sk_buff *skb) int llc_conn_ev_data_req(struct sock *sk, struct sk_buff *skb) { - struct llc_conn_state_ev *ev = llc_conn_ev(skb); + const struct llc_conn_state_ev *ev = llc_conn_ev(skb); return ev->prim == LLC_DATA_PRIM && ev->prim_type == LLC_PRIM_TYPE_REQ ? 0 : 1; @@ -115,7 +115,7 @@ int llc_conn_ev_data_req(struct sock *sk, struct sk_buff *skb) int llc_conn_ev_disc_req(struct sock *sk, struct sk_buff *skb) { - struct llc_conn_state_ev *ev = llc_conn_ev(skb); + const struct llc_conn_state_ev *ev = llc_conn_ev(skb); return ev->prim == LLC_DISC_PRIM && ev->prim_type == LLC_PRIM_TYPE_REQ ? 0 : 1; @@ -123,7 +123,7 @@ int llc_conn_ev_disc_req(struct sock *sk, struct sk_buff *skb) int llc_conn_ev_rst_req(struct sock *sk, struct sk_buff *skb) { - struct llc_conn_state_ev *ev = llc_conn_ev(skb); + const struct llc_conn_state_ev *ev = llc_conn_ev(skb); return ev->prim == LLC_RESET_PRIM && ev->prim_type == LLC_PRIM_TYPE_REQ ? 0 : 1; @@ -131,7 +131,7 @@ int llc_conn_ev_rst_req(struct sock *sk, struct sk_buff *skb) int llc_conn_ev_local_busy_detected(struct sock *sk, struct sk_buff *skb) { - struct llc_conn_state_ev *ev = llc_conn_ev(skb); + const struct llc_conn_state_ev *ev = llc_conn_ev(skb); return ev->type == LLC_CONN_EV_TYPE_SIMPLE && ev->prim_type == LLC_CONN_EV_LOCAL_BUSY_DETECTED ? 0 : 1; @@ -139,7 +139,7 @@ int llc_conn_ev_local_busy_detected(struct sock *sk, struct sk_buff *skb) int llc_conn_ev_local_busy_cleared(struct sock *sk, struct sk_buff *skb) { - struct llc_conn_state_ev *ev = llc_conn_ev(skb); + const struct llc_conn_state_ev *ev = llc_conn_ev(skb); return ev->type == LLC_CONN_EV_TYPE_SIMPLE && ev->prim_type == LLC_CONN_EV_LOCAL_BUSY_CLEARED ? 0 : 1; @@ -152,7 +152,7 @@ int llc_conn_ev_rx_bad_pdu(struct sock *sk, struct sk_buff *skb) int llc_conn_ev_rx_disc_cmd_pbit_set_x(struct sock *sk, struct sk_buff *skb) { - struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb); + const struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb); return LLC_PDU_IS_CMD(pdu) && LLC_PDU_TYPE_IS_U(pdu) && LLC_U_PDU_CMD(pdu) == LLC_2_PDU_CMD_DISC ? 0 : 1; @@ -160,7 +160,7 @@ int llc_conn_ev_rx_disc_cmd_pbit_set_x(struct sock *sk, struct sk_buff *skb) int llc_conn_ev_rx_dm_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb) { - struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb); + const struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb); return LLC_PDU_IS_RSP(pdu) && LLC_PDU_TYPE_IS_U(pdu) && LLC_U_PDU_RSP(pdu) == LLC_2_PDU_RSP_DM ? 0 : 1; @@ -168,7 +168,7 @@ int llc_conn_ev_rx_dm_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb) int llc_conn_ev_rx_frmr_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb) { - struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb); + const struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb); return LLC_PDU_IS_RSP(pdu) && LLC_PDU_TYPE_IS_U(pdu) && LLC_U_PDU_RSP(pdu) == LLC_2_PDU_RSP_FRMR ? 0 : 1; @@ -176,7 +176,7 @@ int llc_conn_ev_rx_frmr_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb) int llc_conn_ev_rx_i_cmd_pbit_set_0(struct sock *sk, struct sk_buff *skb) { - struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); + const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); return llc_conn_space(sk, skb) && LLC_PDU_IS_CMD(pdu) && LLC_PDU_TYPE_IS_I(pdu) && @@ -186,7 +186,7 @@ int llc_conn_ev_rx_i_cmd_pbit_set_0(struct sock *sk, struct sk_buff *skb) int llc_conn_ev_rx_i_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb) { - struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); + const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); return llc_conn_space(sk, skb) && LLC_PDU_IS_CMD(pdu) && LLC_PDU_TYPE_IS_I(pdu) && @@ -197,9 +197,9 @@ int llc_conn_ev_rx_i_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb) int llc_conn_ev_rx_i_cmd_pbit_set_0_unexpd_ns(struct sock *sk, struct sk_buff *skb) { - struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); - u8 vr = llc_sk(sk)->vR; - u8 ns = LLC_I_GET_NS(pdu); + const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); + const u8 vr = llc_sk(sk)->vR; + const u8 ns = LLC_I_GET_NS(pdu); return LLC_PDU_IS_CMD(pdu) && LLC_PDU_TYPE_IS_I(pdu) && LLC_I_PF_IS_0(pdu) && ns != vr && @@ -209,9 +209,9 @@ int llc_conn_ev_rx_i_cmd_pbit_set_0_unexpd_ns(struct sock *sk, int llc_conn_ev_rx_i_cmd_pbit_set_1_unexpd_ns(struct sock *sk, struct sk_buff *skb) { - struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); - u8 vr = llc_sk(sk)->vR; - u8 ns = LLC_I_GET_NS(pdu); + const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); + const u8 vr = llc_sk(sk)->vR; + const u8 ns = LLC_I_GET_NS(pdu); return LLC_PDU_IS_CMD(pdu) && LLC_PDU_TYPE_IS_I(pdu) && LLC_I_PF_IS_1(pdu) && ns != vr && @@ -221,10 +221,11 @@ int llc_conn_ev_rx_i_cmd_pbit_set_1_unexpd_ns(struct sock *sk, int llc_conn_ev_rx_i_cmd_pbit_set_x_inval_ns(struct sock *sk, struct sk_buff *skb) { - struct llc_pdu_sn * pdu = llc_pdu_sn_hdr(skb); - u8 vr = llc_sk(sk)->vR; - u8 ns = LLC_I_GET_NS(pdu); - u16 rc = LLC_PDU_IS_CMD(pdu) && LLC_PDU_TYPE_IS_I(pdu) && ns != vr && + const struct llc_pdu_sn * pdu = llc_pdu_sn_hdr(skb); + const u8 vr = llc_sk(sk)->vR; + const u8 ns = LLC_I_GET_NS(pdu); + const u16 rc = LLC_PDU_IS_CMD(pdu) && LLC_PDU_TYPE_IS_I(pdu) && + ns != vr && llc_util_ns_inside_rx_window(ns, vr, llc_sk(sk)->rw) ? 0 : 1; if (!rc) dprintk("%s: matched, state=%d, ns=%d, vr=%d\n", @@ -234,7 +235,7 @@ int llc_conn_ev_rx_i_cmd_pbit_set_x_inval_ns(struct sock *sk, int llc_conn_ev_rx_i_rsp_fbit_set_0(struct sock *sk, struct sk_buff *skb) { - struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); + const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); return llc_conn_space(sk, skb) && LLC_PDU_IS_RSP(pdu) && LLC_PDU_TYPE_IS_I(pdu) && @@ -244,7 +245,7 @@ int llc_conn_ev_rx_i_rsp_fbit_set_0(struct sock *sk, struct sk_buff *skb) int llc_conn_ev_rx_i_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb) { - struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); + const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); return LLC_PDU_IS_RSP(pdu) && LLC_PDU_TYPE_IS_I(pdu) && LLC_I_PF_IS_1(pdu) && @@ -253,7 +254,7 @@ int llc_conn_ev_rx_i_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb) int llc_conn_ev_rx_i_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb) { - struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); + const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); return llc_conn_space(sk, skb) && LLC_PDU_IS_RSP(pdu) && LLC_PDU_TYPE_IS_I(pdu) && @@ -263,9 +264,9 @@ int llc_conn_ev_rx_i_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb) int llc_conn_ev_rx_i_rsp_fbit_set_0_unexpd_ns(struct sock *sk, struct sk_buff *skb) { - struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); - u8 vr = llc_sk(sk)->vR; - u8 ns = LLC_I_GET_NS(pdu); + const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); + const u8 vr = llc_sk(sk)->vR; + const u8 ns = LLC_I_GET_NS(pdu); return LLC_PDU_IS_RSP(pdu) && LLC_PDU_TYPE_IS_I(pdu) && LLC_I_PF_IS_0(pdu) && ns != vr && @@ -275,9 +276,9 @@ int llc_conn_ev_rx_i_rsp_fbit_set_0_unexpd_ns(struct sock *sk, int llc_conn_ev_rx_i_rsp_fbit_set_1_unexpd_ns(struct sock *sk, struct sk_buff *skb) { - struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); - u8 vr = llc_sk(sk)->vR; - u8 ns = LLC_I_GET_NS(pdu); + const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); + const u8 vr = llc_sk(sk)->vR; + const u8 ns = LLC_I_GET_NS(pdu); return LLC_PDU_IS_RSP(pdu) && LLC_PDU_TYPE_IS_I(pdu) && LLC_I_PF_IS_1(pdu) && ns != vr && @@ -287,9 +288,9 @@ int llc_conn_ev_rx_i_rsp_fbit_set_1_unexpd_ns(struct sock *sk, int llc_conn_ev_rx_i_rsp_fbit_set_x_unexpd_ns(struct sock *sk, struct sk_buff *skb) { - struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); - u8 vr = llc_sk(sk)->vR; - u8 ns = LLC_I_GET_NS(pdu); + const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); + const u8 vr = llc_sk(sk)->vR; + const u8 ns = LLC_I_GET_NS(pdu); return LLC_PDU_IS_RSP(pdu) && LLC_PDU_TYPE_IS_I(pdu) && ns != vr && !llc_util_ns_inside_rx_window(ns, vr, llc_sk(sk)->rw) ? 0 : 1; @@ -298,10 +299,11 @@ int llc_conn_ev_rx_i_rsp_fbit_set_x_unexpd_ns(struct sock *sk, int llc_conn_ev_rx_i_rsp_fbit_set_x_inval_ns(struct sock *sk, struct sk_buff *skb) { - struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); - u8 vr = llc_sk(sk)->vR; - u8 ns = LLC_I_GET_NS(pdu); - u16 rc = LLC_PDU_IS_RSP(pdu) && LLC_PDU_TYPE_IS_I(pdu) && ns != vr && + const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); + const u8 vr = llc_sk(sk)->vR; + const u8 ns = LLC_I_GET_NS(pdu); + const u16 rc = LLC_PDU_IS_RSP(pdu) && LLC_PDU_TYPE_IS_I(pdu) && + ns != vr && llc_util_ns_inside_rx_window(ns, vr, llc_sk(sk)->rw) ? 0 : 1; if (!rc) dprintk("%s: matched, state=%d, ns=%d, vr=%d\n", @@ -311,7 +313,7 @@ int llc_conn_ev_rx_i_rsp_fbit_set_x_inval_ns(struct sock *sk, int llc_conn_ev_rx_rej_cmd_pbit_set_0(struct sock *sk, struct sk_buff *skb) { - struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); + const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); return LLC_PDU_IS_CMD(pdu) && LLC_PDU_TYPE_IS_S(pdu) && LLC_S_PF_IS_0(pdu) && @@ -320,7 +322,7 @@ int llc_conn_ev_rx_rej_cmd_pbit_set_0(struct sock *sk, struct sk_buff *skb) int llc_conn_ev_rx_rej_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb) { - struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); + const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); return LLC_PDU_IS_CMD(pdu) && LLC_PDU_TYPE_IS_S(pdu) && LLC_S_PF_IS_1(pdu) && @@ -329,7 +331,7 @@ int llc_conn_ev_rx_rej_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb) int llc_conn_ev_rx_rej_rsp_fbit_set_0(struct sock *sk, struct sk_buff *skb) { - struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); + const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); return LLC_PDU_IS_RSP(pdu) && LLC_PDU_TYPE_IS_S(pdu) && LLC_S_PF_IS_0(pdu) && @@ -338,7 +340,7 @@ int llc_conn_ev_rx_rej_rsp_fbit_set_0(struct sock *sk, struct sk_buff *skb) int llc_conn_ev_rx_rej_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb) { - struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); + const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); return LLC_PDU_IS_RSP(pdu) && LLC_PDU_TYPE_IS_S(pdu) && LLC_S_PF_IS_1(pdu) && @@ -347,7 +349,7 @@ int llc_conn_ev_rx_rej_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb) int llc_conn_ev_rx_rej_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb) { - struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb); + const struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb); return LLC_PDU_IS_RSP(pdu) && LLC_PDU_TYPE_IS_S(pdu) && LLC_S_PDU_RSP(pdu) == LLC_2_PDU_RSP_REJ ? 0 : 1; @@ -355,7 +357,7 @@ int llc_conn_ev_rx_rej_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb) int llc_conn_ev_rx_rnr_cmd_pbit_set_0(struct sock *sk, struct sk_buff *skb) { - struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); + const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); return LLC_PDU_IS_CMD(pdu) && LLC_PDU_TYPE_IS_S(pdu) && LLC_S_PF_IS_0(pdu) && @@ -364,7 +366,7 @@ int llc_conn_ev_rx_rnr_cmd_pbit_set_0(struct sock *sk, struct sk_buff *skb) int llc_conn_ev_rx_rnr_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb) { - struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); + const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); return LLC_PDU_IS_CMD(pdu) && LLC_PDU_TYPE_IS_S(pdu) && LLC_S_PF_IS_1(pdu) && @@ -373,7 +375,7 @@ int llc_conn_ev_rx_rnr_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb) int llc_conn_ev_rx_rnr_rsp_fbit_set_0(struct sock *sk, struct sk_buff *skb) { - struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); + const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); return LLC_PDU_IS_RSP(pdu) && LLC_PDU_TYPE_IS_S(pdu) && LLC_S_PF_IS_0(pdu) && @@ -382,7 +384,7 @@ int llc_conn_ev_rx_rnr_rsp_fbit_set_0(struct sock *sk, struct sk_buff *skb) int llc_conn_ev_rx_rnr_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb) { - struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); + const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); return LLC_PDU_IS_RSP(pdu) && LLC_PDU_TYPE_IS_S(pdu) && LLC_S_PF_IS_1(pdu) && @@ -391,7 +393,7 @@ int llc_conn_ev_rx_rnr_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb) int llc_conn_ev_rx_rr_cmd_pbit_set_0(struct sock *sk, struct sk_buff *skb) { - struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); + const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); return LLC_PDU_IS_CMD(pdu) && LLC_PDU_TYPE_IS_S(pdu) && LLC_S_PF_IS_0(pdu) && @@ -400,7 +402,7 @@ int llc_conn_ev_rx_rr_cmd_pbit_set_0(struct sock *sk, struct sk_buff *skb) int llc_conn_ev_rx_rr_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb) { - struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); + const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); return LLC_PDU_IS_CMD(pdu) && LLC_PDU_TYPE_IS_S(pdu) && LLC_S_PF_IS_1(pdu) && @@ -409,7 +411,7 @@ int llc_conn_ev_rx_rr_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb) int llc_conn_ev_rx_rr_rsp_fbit_set_0(struct sock *sk, struct sk_buff *skb) { - struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); + const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); return llc_conn_space(sk, skb) && LLC_PDU_IS_RSP(pdu) && LLC_PDU_TYPE_IS_S(pdu) && @@ -419,7 +421,7 @@ int llc_conn_ev_rx_rr_rsp_fbit_set_0(struct sock *sk, struct sk_buff *skb) int llc_conn_ev_rx_rr_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb) { - struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); + const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); return llc_conn_space(sk, skb) && LLC_PDU_IS_RSP(pdu) && LLC_PDU_TYPE_IS_S(pdu) && @@ -429,7 +431,7 @@ int llc_conn_ev_rx_rr_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb) int llc_conn_ev_rx_sabme_cmd_pbit_set_x(struct sock *sk, struct sk_buff *skb) { - struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb); + const struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb); return LLC_PDU_IS_CMD(pdu) && LLC_PDU_TYPE_IS_U(pdu) && LLC_U_PDU_CMD(pdu) == LLC_2_PDU_CMD_SABME ? 0 : 1; @@ -446,7 +448,7 @@ int llc_conn_ev_rx_ua_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb) int llc_conn_ev_rx_xxx_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb) { u16 rc = 1; - struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); + const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); if (LLC_PDU_IS_CMD(pdu)) { if (LLC_PDU_TYPE_IS_I(pdu) || LLC_PDU_TYPE_IS_S(pdu)) { @@ -461,7 +463,7 @@ int llc_conn_ev_rx_xxx_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb) int llc_conn_ev_rx_xxx_cmd_pbit_set_x(struct sock *sk, struct sk_buff *skb) { u16 rc = 1; - struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb); + const struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb); if (LLC_PDU_IS_CMD(pdu)) { if (LLC_PDU_TYPE_IS_I(pdu) || LLC_PDU_TYPE_IS_S(pdu)) @@ -480,7 +482,7 @@ int llc_conn_ev_rx_xxx_cmd_pbit_set_x(struct sock *sk, struct sk_buff *skb) int llc_conn_ev_rx_xxx_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb) { u16 rc = 1; - struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); + const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); if (LLC_PDU_IS_RSP(pdu)) { if (LLC_PDU_TYPE_IS_I(pdu) || LLC_PDU_TYPE_IS_S(pdu)) { @@ -502,7 +504,7 @@ int llc_conn_ev_rx_xxx_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb) int llc_conn_ev_rx_xxx_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb) { u16 rc = 1; - struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb); + const struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb); if (LLC_PDU_IS_RSP(pdu)) { if (LLC_PDU_TYPE_IS_I(pdu) || LLC_PDU_TYPE_IS_S(pdu)) @@ -524,9 +526,9 @@ int llc_conn_ev_rx_zzz_cmd_pbit_set_x_inval_nr(struct sock *sk, struct sk_buff *skb) { u16 rc = 1; - struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); - u8 vs = llc_sk(sk)->vS; - u8 nr = LLC_I_GET_NR(pdu); + const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); + const u8 vs = llc_sk(sk)->vS; + const u8 nr = LLC_I_GET_NR(pdu); if (LLC_PDU_IS_CMD(pdu) && (LLC_PDU_TYPE_IS_I(pdu) || LLC_PDU_TYPE_IS_S(pdu)) && @@ -542,9 +544,9 @@ int llc_conn_ev_rx_zzz_rsp_fbit_set_x_inval_nr(struct sock *sk, struct sk_buff *skb) { u16 rc = 1; - struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); - u8 vs = llc_sk(sk)->vS; - u8 nr = LLC_I_GET_NR(pdu); + const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); + const u8 vs = llc_sk(sk)->vS; + const u8 nr = LLC_I_GET_NR(pdu); if (LLC_PDU_IS_RSP(pdu) && (LLC_PDU_TYPE_IS_I(pdu) || LLC_PDU_TYPE_IS_S(pdu)) && @@ -563,28 +565,28 @@ int llc_conn_ev_rx_any_frame(struct sock *sk, struct sk_buff *skb) int llc_conn_ev_p_tmr_exp(struct sock *sk, struct sk_buff *skb) { - struct llc_conn_state_ev *ev = llc_conn_ev(skb); + const struct llc_conn_state_ev *ev = llc_conn_ev(skb); return ev->type != LLC_CONN_EV_TYPE_P_TMR; } int llc_conn_ev_ack_tmr_exp(struct sock *sk, struct sk_buff *skb) { - struct llc_conn_state_ev *ev = llc_conn_ev(skb); + const struct llc_conn_state_ev *ev = llc_conn_ev(skb); return ev->type != LLC_CONN_EV_TYPE_ACK_TMR; } int llc_conn_ev_rej_tmr_exp(struct sock *sk, struct sk_buff *skb) { - struct llc_conn_state_ev *ev = llc_conn_ev(skb); + const struct llc_conn_state_ev *ev = llc_conn_ev(skb); return ev->type != LLC_CONN_EV_TYPE_REJ_TMR; } int llc_conn_ev_busy_tmr_exp(struct sock *sk, struct sk_buff *skb) { - struct llc_conn_state_ev *ev = llc_conn_ev(skb); + const struct llc_conn_state_ev *ev = llc_conn_ev(skb); return ev->type != LLC_CONN_EV_TYPE_BUSY_TMR; } @@ -596,7 +598,7 @@ int llc_conn_ev_init_p_f_cycle(struct sock *sk, struct sk_buff *skb) int llc_conn_ev_tx_buffer_full(struct sock *sk, struct sk_buff *skb) { - struct llc_conn_state_ev *ev = llc_conn_ev(skb); + const struct llc_conn_state_ev *ev = llc_conn_ev(skb); return ev->type == LLC_CONN_EV_TYPE_SIMPLE && ev->prim_type == LLC_CONN_EV_TX_BUFF_FULL ? 0 : 1; From 405599bd98b01d648becb020efb503abf19f9c9f Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Thu, 22 Sep 2005 00:12:35 -0700 Subject: [PATCH 020/352] [SPARC64]: Break up inherit_prom_mappings() into it's constituent parts. This thing was just a huge monolithic mess, so chop it up. Signed-off-by: David S. Miller --- arch/sparc64/mm/init.c | 301 ++++++++++++++++++++++------------------- 1 file changed, 160 insertions(+), 141 deletions(-) diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c index 141d4cc5fc53..11d2187990d4 100644 --- a/arch/sparc64/mm/init.c +++ b/arch/sparc64/mm/init.c @@ -362,84 +362,107 @@ unsigned long prom_virt_to_phys(unsigned long promva, int *error) return(base + (promva & (BASE_PAGE_SIZE - 1))); } -static void inherit_prom_mappings(void) +static inline int in_obp_range(unsigned long vaddr) { - unsigned long phys_page, tte_vaddr, tte_data; - void (*remap_func)(unsigned long, unsigned long, int); - pmd_t *pmdp; - pte_t *ptep; - int node, n, i, tsz; + return (vaddr >= LOW_OBP_ADDRESS && + vaddr < HI_OBP_ADDRESS); +} + +/* The obp translations are saved based on 8k pagesize, since obp can + * use a mixture of pagesizes. Misses to the LOW_OBP_ADDRESS -> + * HI_OBP_ADDRESS range are handled in entry.S and do not use the vpte + * scheme (also, see rant in inherit_locked_prom_mappings()). + */ +static void build_obp_range(unsigned long start, unsigned long end, unsigned long data) +{ + unsigned long vaddr; + + for (vaddr = start; vaddr < end; vaddr += BASE_PAGE_SIZE) { + unsigned long val; + pmd_t *pmdp; + pte_t *ptep; + + pmdp = prompmd + ((vaddr >> 23) & 0x7ff); + if (pmd_none(*pmdp)) { + ptep = __alloc_bootmem(BASE_PAGE_SIZE, + BASE_PAGE_SIZE, + bootmap_base); + if (ptep == NULL) + early_pgtable_allocfail("pte"); + memset(ptep, 0, BASE_PAGE_SIZE); + pmd_set(pmdp, ptep); + } + ptep = (pte_t *)__pmd_page(*pmdp) + + ((vaddr >> 13) & 0x3ff); + + val = data; + + /* Clear diag TTE bits. */ + if (tlb_type == spitfire) + val &= ~0x0003fe0000000000UL; + + set_pte_at(&init_mm, vaddr, + ptep, __pte(val | _PAGE_MODIFIED)); + data += BASE_PAGE_SIZE; + } +} + +#define OBP_PMD_SIZE 2048 +static void build_obp_pgtable(int prom_trans_ents) +{ + int i; + + prompmd = __alloc_bootmem(OBP_PMD_SIZE, OBP_PMD_SIZE, + bootmap_base); + if (prompmd == NULL) + early_pgtable_allocfail("pmd"); + memset(prompmd, 0, OBP_PMD_SIZE); + for (i = 0; i < prom_trans_ents; i++) { + unsigned long start, end; + + if (!in_obp_range(prom_trans[i].virt)) + continue; + + start = prom_trans[i].virt; + end = start + prom_trans[i].size; + if (end > HI_OBP_ADDRESS) + end = HI_OBP_ADDRESS; + + build_obp_range(start, end, prom_trans[i].data); + } + prom_pmd_phys = __pa(prompmd); +} + +/* Read OBP translations property into 'prom_trans[]'. + * Return the number of entries. + */ +static int read_obp_translations(void) +{ + int n, node; node = prom_finddevice("/virtual-memory"); n = prom_getproplen(node, "translations"); - if (n == 0 || n == -1) { + if (unlikely(n == 0 || n == -1)) { prom_printf("prom_mappings: Couldn't get size.\n"); prom_halt(); } - n += 24 * sizeof(struct linux_prom_translation); - if (n > sizeof(prom_trans)) { - prom_printf("prom_mappings: prom_trans too small, " - "need %Zd bytes\n", n); + if (unlikely(n > sizeof(prom_trans))) { + prom_printf("prom_mappings: Size %Zd is too big.\n", n); prom_halt(); } - tsz = n; + if ((n = prom_getproperty(node, "translations", - (char *)&prom_trans[0], tsz)) == -1) { + (char *)&prom_trans[0], + sizeof(prom_trans))) == -1) { prom_printf("prom_mappings: Couldn't get property.\n"); prom_halt(); } n = n / sizeof(struct linux_prom_translation); + return n; +} - /* The obp translations are saved based on 8k pagesize, since obp - * can use a mixture of pagesizes. Misses to the 0xf0000000 -> - * 0x100000000, ie obp range, are handled in entry.S and do not - * use the vpte scheme (see rant: inherit_locked_prom_mappings). - */ -#define OBP_PMD_SIZE 2048 - prompmd = __alloc_bootmem(OBP_PMD_SIZE, OBP_PMD_SIZE, bootmap_base); - if (prompmd == NULL) - early_pgtable_allocfail("pmd"); - memset(prompmd, 0, OBP_PMD_SIZE); - for (i = 0; i < n; i++) { - unsigned long vaddr; - - if (prom_trans[i].virt >= LOW_OBP_ADDRESS && prom_trans[i].virt < HI_OBP_ADDRESS) { - for (vaddr = prom_trans[i].virt; - ((vaddr < prom_trans[i].virt + prom_trans[i].size) && - (vaddr < HI_OBP_ADDRESS)); - vaddr += BASE_PAGE_SIZE) { - unsigned long val; - - pmdp = prompmd + ((vaddr >> 23) & 0x7ff); - if (pmd_none(*pmdp)) { - ptep = __alloc_bootmem(BASE_PAGE_SIZE, - BASE_PAGE_SIZE, - bootmap_base); - if (ptep == NULL) - early_pgtable_allocfail("pte"); - memset(ptep, 0, BASE_PAGE_SIZE); - pmd_set(pmdp, ptep); - } - ptep = (pte_t *)__pmd_page(*pmdp) + - ((vaddr >> 13) & 0x3ff); - - val = prom_trans[i].data; - - /* Clear diag TTE bits. */ - if (tlb_type == spitfire) - val &= ~0x0003fe0000000000UL; - - set_pte_at(&init_mm, vaddr, - ptep, __pte(val | _PAGE_MODIFIED)); - prom_trans[i].data += BASE_PAGE_SIZE; - } - } - } - prom_pmd_phys = __pa(prompmd); - - /* Now fixup OBP's idea about where we really are mapped. */ - prom_printf("Remapping the kernel... "); - +static inline void early_spitfire_errata32(void) +{ /* Spitfire Errata #32 workaround */ /* NOTE: Using plain zero for the context value is * correct here, we are not using the Linux trap @@ -449,23 +472,13 @@ static void inherit_prom_mappings(void) __asm__ __volatile__("stxa %0, [%1] %2\n\t" "flush %%g6" : /* No outputs */ - : "r" (0), "r" (PRIMARY_CONTEXT), "i" (ASI_DMMU)); + : "r" (0), "r" (PRIMARY_CONTEXT), + "i" (ASI_DMMU)); +} - switch (tlb_type) { - default: - case spitfire: - phys_page = spitfire_get_dtlb_data(sparc64_highest_locked_tlbent()); - break; - - case cheetah: - case cheetah_plus: - phys_page = cheetah_get_litlb_data(sparc64_highest_locked_tlbent()); - break; - }; - - phys_page &= _PAGE_PADDR; - phys_page += ((unsigned long)&prom_boot_page - - (unsigned long)KERNBASE); +static void lock_remap_func_page(unsigned long phys_page) +{ + unsigned long tte_data = (phys_page | pgprot_val(PAGE_KERNEL)); if (tlb_type == spitfire) { /* Lock this into i/d tlb entry 59 */ @@ -478,13 +491,12 @@ static void inherit_prom_mappings(void) "stxa %0, [%1] %6\n\t" "membar #Sync\n\t" "flush %%g6" - : : "r" (phys_page | _PAGE_VALID | _PAGE_SZ8K | _PAGE_CP | - _PAGE_CV | _PAGE_P | _PAGE_L | _PAGE_W), - "r" (59 << 3), "r" (TLB_TAG_ACCESS), - "i" (ASI_DMMU), "i" (ASI_DTLB_DATA_ACCESS), - "i" (ASI_IMMU), "i" (ASI_ITLB_DATA_ACCESS) - : "memory"); - } else if (tlb_type == cheetah || tlb_type == cheetah_plus) { + : /* no outputs */ + : "r" (tte_data), "r" (59 << 3), "r" (TLB_TAG_ACCESS), + "i" (ASI_DMMU), "i" (ASI_DTLB_DATA_ACCESS), + "i" (ASI_IMMU), "i" (ASI_ITLB_DATA_ACCESS) + : "memory"); + } else { /* Lock this into i/d tlb-0 entry 11 */ __asm__ __volatile__( "stxa %%g0, [%2] %3\n\t" @@ -495,87 +507,80 @@ static void inherit_prom_mappings(void) "stxa %0, [%1] %6\n\t" "membar #Sync\n\t" "flush %%g6" - : : "r" (phys_page | _PAGE_VALID | _PAGE_SZ8K | _PAGE_CP | - _PAGE_CV | _PAGE_P | _PAGE_L | _PAGE_W), - "r" ((0 << 16) | (11 << 3)), "r" (TLB_TAG_ACCESS), - "i" (ASI_DMMU), "i" (ASI_DTLB_DATA_ACCESS), - "i" (ASI_IMMU), "i" (ASI_ITLB_DATA_ACCESS) + : /* no outputs */ + : "r" (tte_data), "r" ((0 << 16) | (11 << 3)), + "r" (TLB_TAG_ACCESS), "i" (ASI_DMMU), + "i" (ASI_DTLB_DATA_ACCESS), "i" (ASI_IMMU), + "i" (ASI_ITLB_DATA_ACCESS) : "memory"); - } else { - /* Implement me :-) */ - BUG(); } +} + +static void remap_kernel(void) +{ + unsigned long phys_page, tte_vaddr, tte_data; + void (*remap_func)(unsigned long, unsigned long, int); + int tlb_ent = sparc64_highest_locked_tlbent(); + + early_spitfire_errata32(); + + if (tlb_type == spitfire) + phys_page = spitfire_get_dtlb_data(tlb_ent); + else + phys_page = cheetah_get_ldtlb_data(tlb_ent); + + phys_page &= _PAGE_PADDR; + phys_page += ((unsigned long)&prom_boot_page - + (unsigned long)KERNBASE); + + lock_remap_func_page(phys_page); tte_vaddr = (unsigned long) KERNBASE; - /* Spitfire Errata #32 workaround */ - /* NOTE: Using plain zero for the context value is - * correct here, we are not using the Linux trap - * tables yet so we should not use the special - * UltraSPARC-III+ page size encodings yet. - */ - __asm__ __volatile__("stxa %0, [%1] %2\n\t" - "flush %%g6" - : /* No outputs */ - : "r" (0), - "r" (PRIMARY_CONTEXT), "i" (ASI_DMMU)); + early_spitfire_errata32(); if (tlb_type == spitfire) - tte_data = spitfire_get_dtlb_data(sparc64_highest_locked_tlbent()); + tte_data = spitfire_get_dtlb_data(tlb_ent); else - tte_data = cheetah_get_ldtlb_data(sparc64_highest_locked_tlbent()); + tte_data = cheetah_get_ldtlb_data(tlb_ent); kern_locked_tte_data = tte_data; remap_func = (void *) ((unsigned long) &prom_remap - (unsigned long) &prom_boot_page); + early_spitfire_errata32(); - /* Spitfire Errata #32 workaround */ - /* NOTE: Using plain zero for the context value is - * correct here, we are not using the Linux trap - * tables yet so we should not use the special - * UltraSPARC-III+ page size encodings yet. - */ - __asm__ __volatile__("stxa %0, [%1] %2\n\t" - "flush %%g6" - : /* No outputs */ - : "r" (0), - "r" (PRIMARY_CONTEXT), "i" (ASI_DMMU)); - - remap_func((tlb_type == spitfire ? - (spitfire_get_dtlb_data(sparc64_highest_locked_tlbent()) & _PAGE_PADDR) : - (cheetah_get_litlb_data(sparc64_highest_locked_tlbent()) & _PAGE_PADDR)), - (unsigned long) KERNBASE, - prom_get_mmu_ihandle()); - + phys_page = tte_data & _PAGE_PADDR; + remap_func(phys_page, KERNBASE, prom_get_mmu_ihandle()); if (bigkernel) - remap_func(((tte_data + 0x400000) & _PAGE_PADDR), - (unsigned long) KERNBASE + 0x400000, prom_get_mmu_ihandle()); + remap_func(phys_page + 0x400000, + KERNBASE + 0x400000, + prom_get_mmu_ihandle()); /* Flush out that temporary mapping. */ spitfire_flush_dtlb_nucleus_page(0x0); spitfire_flush_itlb_nucleus_page(0x0); /* Now lock us back into the TLBs via OBP. */ - prom_dtlb_load(sparc64_highest_locked_tlbent(), tte_data, tte_vaddr); - prom_itlb_load(sparc64_highest_locked_tlbent(), tte_data, tte_vaddr); + prom_dtlb_load(tlb_ent, tte_data, tte_vaddr); + prom_itlb_load(tlb_ent, tte_data, tte_vaddr); if (bigkernel) { - prom_dtlb_load(sparc64_highest_locked_tlbent()-1, tte_data + 0x400000, - tte_vaddr + 0x400000); - prom_itlb_load(sparc64_highest_locked_tlbent()-1, tte_data + 0x400000, - tte_vaddr + 0x400000); + prom_dtlb_load(tlb_ent - 1, + tte_data + 0x400000, + tte_vaddr + 0x400000); + prom_itlb_load(tlb_ent - 1, + tte_data + 0x400000, + tte_vaddr + 0x400000); } +} - /* Re-read translations property. */ - if ((n = prom_getproperty(node, "translations", - (char *)&prom_trans[0], tsz)) == -1) { - prom_printf("prom_mappings: Can't reread prom_trans.\n"); - prom_halt(); - } - n = n / sizeof(struct linux_prom_translation); +static void readjust_prom_translations(void) +{ + int nents, i; - for (i = 0; i < n; i++) { + nents = read_obp_translations(); + for (i = 0; i < nents; i++) { unsigned long vaddr = prom_trans[i].virt; unsigned long size = prom_trans[i].size; @@ -601,6 +606,20 @@ static void inherit_prom_mappings(void) } } } +} + +static void inherit_prom_mappings(void) +{ + int n; + + n = read_obp_translations(); + build_obp_pgtable(n); + + /* Now fixup OBP's idea about where we really are mapped. */ + prom_printf("Remapping the kernel... "); + remap_kernel(); + + readjust_prom_translations(); prom_printf("done.\n"); From 72b1ad4a7e239a2224e87194654acba56fc477d4 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Thu, 22 Sep 2005 04:19:52 -0300 Subject: [PATCH 021/352] [LLC]: Remove unused functions from llc_c_ev.c Signed-off-by: Jochen Friedrich Signed-off-by: Arnaldo Carvalho de Melo --- net/llc/llc_c_ev.c | 25 +------------------------ 1 file changed, 1 insertion(+), 24 deletions(-) diff --git a/net/llc/llc_c_ev.c b/net/llc/llc_c_ev.c index c53b82324268..c5deda246614 100644 --- a/net/llc/llc_c_ev.c +++ b/net/llc/llc_c_ev.c @@ -37,6 +37,7 @@ #include #include #include +#include #include #include @@ -46,8 +47,6 @@ #define dprintk(args...) #endif -extern u16 llc_circular_between(u8 a, u8 b, u8 c); - /** * llc_util_ns_inside_rx_window - check if sequence number is in rx window * @ns: sequence number of received pdu. @@ -479,28 +478,6 @@ int llc_conn_ev_rx_xxx_cmd_pbit_set_x(struct sock *sk, struct sk_buff *skb) return rc; } -int llc_conn_ev_rx_xxx_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb) -{ - u16 rc = 1; - const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); - - if (LLC_PDU_IS_RSP(pdu)) { - if (LLC_PDU_TYPE_IS_I(pdu) || LLC_PDU_TYPE_IS_S(pdu)) { - if (LLC_I_PF_IS_1(pdu)) - rc = 0; - } else if (LLC_PDU_TYPE_IS_U(pdu)) - switch (LLC_U_PDU_RSP(pdu)) { - case LLC_2_PDU_RSP_UA: - case LLC_2_PDU_RSP_DM: - case LLC_2_PDU_RSP_FRMR: - if (LLC_U_PF_IS_1(pdu)) - rc = 0; - break; - } - } - return rc; -} - int llc_conn_ev_rx_xxx_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb) { u16 rc = 1; From b35bd11019ed1084a36632f1c1d936244d9cfb5b Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Thu, 22 Sep 2005 04:22:39 -0300 Subject: [PATCH 022/352] [LLC]: Convert llc_ui_wait_for_ functions to use prepare_to_wait/finish_wait And make it look more like the similar routines in the TCP/IP source code. Signed-off-by: Jochen Friedrich Signed-off-by: Arnaldo Carvalho de Melo --- net/llc/af_llc.c | 147 +++++++++++++++++++++-------------------------- 1 file changed, 67 insertions(+), 80 deletions(-) diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c index aed61e6376ed..436c8db67f55 100644 --- a/net/llc/af_llc.c +++ b/net/llc/af_llc.c @@ -426,12 +426,30 @@ static int llc_ui_connect(struct socket *sock, struct sockaddr *uaddr, sk->sk_state = TCP_CLOSE; goto out; } - rc = llc_ui_wait_for_conn(sk, sk->sk_rcvtimeo); - if (rc) - dprintk("%s: llc_ui_wait_for_conn failed=%d\n", __FUNCTION__, rc); + + if (sk->sk_state == TCP_SYN_SENT) { + const int timeo = sock_sndtimeo(sk, flags & O_NONBLOCK); + + if (!timeo || !llc_ui_wait_for_conn(sk, timeo)) + goto out; + + rc = sock_intr_errno(timeo); + if (signal_pending(current)) + goto out; + } + + if (sk->sk_state == TCP_CLOSE) + goto sock_error; + + sock->state = SS_CONNECTED; + rc = 0; out: release_sock(sk); return rc; +sock_error: + rc = sock_error(sk) ? : -ECONNABORTED; + sock->state = SS_UNCONNECTED; + goto out; } /** @@ -472,117 +490,88 @@ out: static int llc_ui_wait_for_disc(struct sock *sk, int timeout) { - DECLARE_WAITQUEUE(wait, current); - int rc; + DEFINE_WAIT(wait); + int rc = 0; - add_wait_queue_exclusive(sk->sk_sleep, &wait); - for (;;) { - __set_current_state(TASK_INTERRUPTIBLE); - rc = 0; - if (sk->sk_state != TCP_CLOSE) { - release_sock(sk); - timeout = schedule_timeout(timeout); - lock_sock(sk); - } else - break; + prepare_to_wait(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE); + while (sk->sk_state != TCP_CLOSE) { + release_sock(sk); + timeout = schedule_timeout(timeout); + lock_sock(sk); rc = -ERESTARTSYS; if (signal_pending(current)) break; rc = -EAGAIN; if (!timeout) break; + rc = 0; + prepare_to_wait(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE); } - __set_current_state(TASK_RUNNING); - remove_wait_queue(sk->sk_sleep, &wait); + finish_wait(sk->sk_sleep, &wait); return rc; } static int llc_ui_wait_for_conn(struct sock *sk, int timeout) { - DECLARE_WAITQUEUE(wait, current); - int rc; + DEFINE_WAIT(wait); - add_wait_queue_exclusive(sk->sk_sleep, &wait); - for (;;) { - __set_current_state(TASK_INTERRUPTIBLE); - rc = -EAGAIN; - if (sk->sk_state == TCP_CLOSE) - break; - rc = 0; - if (sk->sk_state != TCP_ESTABLISHED) { - release_sock(sk); - timeout = schedule_timeout(timeout); - lock_sock(sk); - } else - break; - rc = -ERESTARTSYS; - if (signal_pending(current)) - break; - rc = -EAGAIN; - if (!timeout) + prepare_to_wait(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE); + + while (sk->sk_state == TCP_SYN_SENT) { + release_sock(sk); + timeout = schedule_timeout(timeout); + lock_sock(sk); + if (signal_pending(current) || !timeout) break; + prepare_to_wait(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE); } - __set_current_state(TASK_RUNNING); - remove_wait_queue(sk->sk_sleep, &wait); - return rc; + finish_wait(sk->sk_sleep, &wait); + return timeout; } static int llc_ui_wait_for_data(struct sock *sk, int timeout) { - DECLARE_WAITQUEUE(wait, current); + DEFINE_WAIT(wait); int rc = 0; - add_wait_queue_exclusive(sk->sk_sleep, &wait); for (;;) { - __set_current_state(TASK_INTERRUPTIBLE); + prepare_to_wait(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE); if (sk->sk_shutdown & RCV_SHUTDOWN) break; - /* - * Well, if we have backlog, try to process it now. - */ - if (sk->sk_backlog.tail) { - release_sock(sk); - lock_sock(sk); - } - rc = 0; - if (skb_queue_empty(&sk->sk_receive_queue)) { - release_sock(sk); - timeout = schedule_timeout(timeout); - lock_sock(sk); - } else + if (!skb_queue_empty(&sk->sk_receive_queue)) break; + release_sock(sk); + timeout = schedule_timeout(timeout); + lock_sock(sk); rc = -ERESTARTSYS; if (signal_pending(current)) break; rc = -EAGAIN; if (!timeout) break; + rc = 0; } - __set_current_state(TASK_RUNNING); - remove_wait_queue(sk->sk_sleep, &wait); + finish_wait(sk->sk_sleep, &wait); return rc; } static int llc_ui_wait_for_busy_core(struct sock *sk, int timeout) { - DECLARE_WAITQUEUE(wait, current); + DEFINE_WAIT(wait); struct llc_sock *llc = llc_sk(sk); int rc; - add_wait_queue_exclusive(sk->sk_sleep, &wait); for (;;) { - dprintk("%s: looping...\n", __FUNCTION__); - __set_current_state(TASK_INTERRUPTIBLE); + prepare_to_wait(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE); rc = -ENOTCONN; if (sk->sk_shutdown & RCV_SHUTDOWN) break; rc = 0; - if (llc_data_accept_state(llc->state) || llc->p_flag) { - release_sock(sk); - timeout = schedule_timeout(timeout); - lock_sock(sk); - } else + if (!llc_data_accept_state(llc->state) && !llc->p_flag) break; + release_sock(sk); + timeout = schedule_timeout(timeout); + lock_sock(sk); rc = -ERESTARTSYS; if (signal_pending(current)) break; @@ -590,8 +579,7 @@ static int llc_ui_wait_for_busy_core(struct sock *sk, int timeout) if (!timeout) break; } - __set_current_state(TASK_RUNNING); - remove_wait_queue(sk->sk_sleep, &wait); + finish_wait(sk->sk_sleep, &wait); return rc; } @@ -621,9 +609,11 @@ static int llc_ui_accept(struct socket *sock, struct socket *newsock, int flags) sk->sk_state != TCP_LISTEN)) goto out; /* wait for a connection to arrive. */ - rc = llc_ui_wait_for_data(sk, sk->sk_rcvtimeo); - if (rc) - goto out; + if (skb_queue_empty(&sk->sk_receive_queue)) { + rc = llc_ui_wait_for_data(sk, sk->sk_rcvtimeo); + if (rc) + goto out; + } dprintk("%s: got a new connection on %02X\n", __FUNCTION__, llc_sk(sk)->laddr.lsap); skb = skb_dequeue(&sk->sk_receive_queue); @@ -672,19 +662,16 @@ static int llc_ui_recvmsg(struct kiocb *iocb, struct socket *sock, struct sockaddr_llc *uaddr = (struct sockaddr_llc *)msg->msg_name; struct sk_buff *skb; size_t copied = 0; - int rc = -ENOMEM, timeout; + int rc = -ENOMEM; int noblock = flags & MSG_DONTWAIT; dprintk("%s: receiving in %02X from %02X\n", __FUNCTION__, llc_sk(sk)->laddr.lsap, llc_sk(sk)->daddr.lsap); lock_sock(sk); - timeout = sock_rcvtimeo(sk, noblock); - rc = llc_ui_wait_for_data(sk, timeout); - if (rc) { - dprintk("%s: llc_ui_wait_for_data failed recv " - "in %02X from %02X\n", __FUNCTION__, - llc_sk(sk)->laddr.lsap, llc_sk(sk)->daddr.lsap); - goto out; + if (skb_queue_empty(&sk->sk_receive_queue)) { + rc = llc_ui_wait_for_data(sk, sock_rcvtimeo(sk, noblock)); + if (rc) + goto out; } skb = skb_dequeue(&sk->sk_receive_queue); if (!skb) /* shutdown */ From 54fb7f25f19a4539d3ec012e410439913650dc06 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Thu, 22 Sep 2005 04:26:14 -0300 Subject: [PATCH 023/352] [LLC]: Use the sk_wait_event primitive Signed-off-by: Jochen Friedrich Signed-off-by: Arnaldo Carvalho de Melo --- net/llc/af_llc.c | 65 ++++++++++++++++++++---------------------------- 1 file changed, 27 insertions(+), 38 deletions(-) diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c index 436c8db67f55..95444f227510 100644 --- a/net/llc/af_llc.c +++ b/net/llc/af_llc.c @@ -37,10 +37,10 @@ static u16 llc_ui_sap_link_no_max[256]; static struct sockaddr_llc llc_ui_addrnull; static struct proto_ops llc_ui_ops; -static int llc_ui_wait_for_conn(struct sock *sk, int timeout); -static int llc_ui_wait_for_disc(struct sock *sk, int timeout); -static int llc_ui_wait_for_data(struct sock *sk, int timeout); -static int llc_ui_wait_for_busy_core(struct sock *sk, int timeout); +static int llc_ui_wait_for_conn(struct sock *sk, long timeout); +static int llc_ui_wait_for_disc(struct sock *sk, long timeout); +static int llc_ui_wait_for_data(struct sock *sk, long timeout); +static int llc_ui_wait_for_busy_core(struct sock *sk, long timeout); #if 0 #define dprintk(args...) printk(KERN_DEBUG args) @@ -117,7 +117,7 @@ static int llc_ui_send_data(struct sock* sk, struct sk_buff *skb, int noblock) int rc = 0; if (llc_data_accept_state(llc->state) || llc->p_flag) { - int timeout = sock_sndtimeo(sk, noblock); + long timeout = sock_sndtimeo(sk, noblock); rc = llc_ui_wait_for_busy_core(sk, timeout); } @@ -428,7 +428,7 @@ static int llc_ui_connect(struct socket *sock, struct sockaddr *uaddr, } if (sk->sk_state == TCP_SYN_SENT) { - const int timeo = sock_sndtimeo(sk, flags & O_NONBLOCK); + const long timeo = sock_sndtimeo(sk, flags & O_NONBLOCK); if (!timeo || !llc_ui_wait_for_conn(sk, timeo)) goto out; @@ -488,16 +488,15 @@ out: return rc; } -static int llc_ui_wait_for_disc(struct sock *sk, int timeout) +static int llc_ui_wait_for_disc(struct sock *sk, long timeout) { DEFINE_WAIT(wait); int rc = 0; - prepare_to_wait(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE); - while (sk->sk_state != TCP_CLOSE) { - release_sock(sk); - timeout = schedule_timeout(timeout); - lock_sock(sk); + while (1) { + prepare_to_wait(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE); + if (sk_wait_event(sk, &timeout, sk->sk_state == TCP_CLOSE)) + break; rc = -ERESTARTSYS; if (signal_pending(current)) break; @@ -505,44 +504,37 @@ static int llc_ui_wait_for_disc(struct sock *sk, int timeout) if (!timeout) break; rc = 0; - prepare_to_wait(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE); } finish_wait(sk->sk_sleep, &wait); return rc; } -static int llc_ui_wait_for_conn(struct sock *sk, int timeout) +static int llc_ui_wait_for_conn(struct sock *sk, long timeout) { DEFINE_WAIT(wait); - prepare_to_wait(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE); - - while (sk->sk_state == TCP_SYN_SENT) { - release_sock(sk); - timeout = schedule_timeout(timeout); - lock_sock(sk); + while (1) { + prepare_to_wait(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE); + if (sk_wait_event(sk, &timeout, sk->sk_state != TCP_SYN_SENT)) + break; if (signal_pending(current) || !timeout) break; - prepare_to_wait(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE); } finish_wait(sk->sk_sleep, &wait); return timeout; } -static int llc_ui_wait_for_data(struct sock *sk, int timeout) +static int llc_ui_wait_for_data(struct sock *sk, long timeout) { DEFINE_WAIT(wait); int rc = 0; - for (;;) { + while (1) { prepare_to_wait(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE); - if (sk->sk_shutdown & RCV_SHUTDOWN) + if (sk_wait_event(sk, &timeout, + (sk->sk_shutdown & RCV_SHUTDOWN) || + (!skb_queue_empty(&sk->sk_receive_queue)))) break; - if (!skb_queue_empty(&sk->sk_receive_queue)) - break; - release_sock(sk); - timeout = schedule_timeout(timeout); - lock_sock(sk); rc = -ERESTARTSYS; if (signal_pending(current)) break; @@ -555,23 +547,20 @@ static int llc_ui_wait_for_data(struct sock *sk, int timeout) return rc; } -static int llc_ui_wait_for_busy_core(struct sock *sk, int timeout) +static int llc_ui_wait_for_busy_core(struct sock *sk, long timeout) { DEFINE_WAIT(wait); struct llc_sock *llc = llc_sk(sk); int rc; - for (;;) { + while (1) { prepare_to_wait(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE); - rc = -ENOTCONN; - if (sk->sk_shutdown & RCV_SHUTDOWN) - break; rc = 0; - if (!llc_data_accept_state(llc->state) && !llc->p_flag) + if (sk_wait_event(sk, &timeout, + (sk->sk_shutdown & RCV_SHUTDOWN) || + (!llc_data_accept_state(llc->state) && + !llc->p_flag))) break; - release_sock(sk); - timeout = schedule_timeout(timeout); - lock_sock(sk); rc = -ERESTARTSYS; if (signal_pending(current)) break; From 590232a7150674b2036291eaefce085f3f9659c8 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Thu, 22 Sep 2005 04:30:44 -0300 Subject: [PATCH 024/352] [LLC]: Add sysctl support for the LLC timeouts Signed-off-by: Jochen Friedrich Signed-off-by: Arnaldo Carvalho de Melo --- include/linux/sysctl.h | 26 +++++++- include/net/llc.h | 7 ++ include/net/llc_conn.h | 10 +-- net/llc/Makefile | 1 + net/llc/af_llc.c | 47 ++++++++++---- net/llc/llc_c_ac.c | 12 ++-- net/llc/llc_conn.c | 13 ++-- net/llc/llc_station.c | 11 +++- net/llc/sysctl_net_llc.c | 136 +++++++++++++++++++++++++++++++++++++++ 9 files changed, 232 insertions(+), 31 deletions(-) create mode 100644 net/llc/sysctl_net_llc.c diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h index 3a29a9f9b451..fc8e367f671e 100644 --- a/include/linux/sysctl.h +++ b/include/linux/sysctl.h @@ -202,7 +202,8 @@ enum NET_TR=14, NET_DECNET=15, NET_ECONET=16, - NET_SCTP=17, + NET_SCTP=17, + NET_LLC=18, }; /* /proc/sys/kernel/random */ @@ -522,6 +523,29 @@ enum { NET_IPX_FORWARDING=2 }; +/* /proc/sys/net/llc */ +enum { + NET_LLC2=1, + NET_LLC_STATION=2, +}; + +/* /proc/sys/net/llc/llc2 */ +enum { + NET_LLC2_TIMEOUT=1, +}; + +/* /proc/sys/net/llc/station */ +enum { + NET_LLC_STATION_ACK_TIMEOUT=1, +}; + +/* /proc/sys/net/llc/llc2/timeout */ +enum { + NET_LLC2_ACK_TIMEOUT=1, + NET_LLC2_P_TIMEOUT=2, + NET_LLC2_REJ_TIMEOUT=3, + NET_LLC2_BUSY_TIMEOUT=4, +}; /* /proc/sys/net/appletalk */ enum { diff --git a/include/net/llc.h b/include/net/llc.h index 71769a5aeef3..8b8e2be289b1 100644 --- a/include/net/llc.h +++ b/include/net/llc.h @@ -98,4 +98,11 @@ extern void llc_proc_exit(void); #define llc_proc_init() (0) #define llc_proc_exit() do { } while(0) #endif /* CONFIG_PROC_FS */ +#ifdef CONFIG_SYSCTL +extern int llc_sysctl_init(void); +extern void llc_sysctl_exit(void); +#else +#define llc_sysctl_init() (0) +#define llc_sysctl_exit() do { } while(0) +#endif /* CONFIG_SYSCTL */ #endif /* LLC_H */ diff --git a/include/net/llc_conn.h b/include/net/llc_conn.h index 8ad3bc2c23d7..8a8ff4810135 100644 --- a/include/net/llc_conn.h +++ b/include/net/llc_conn.h @@ -19,14 +19,14 @@ #define LLC_EVENT 1 #define LLC_PACKET 2 -#define LLC_P_TIME 2 -#define LLC_ACK_TIME 1 -#define LLC_REJ_TIME 3 -#define LLC_BUSY_TIME 3 +#define LLC2_P_TIME 2 +#define LLC2_ACK_TIME 1 +#define LLC2_REJ_TIME 3 +#define LLC2_BUSY_TIME 3 struct llc_timer { struct timer_list timer; - u16 expire; /* timer expire time */ + unsigned long expire; /* timer expire time */ }; struct llc_sock { diff --git a/net/llc/Makefile b/net/llc/Makefile index 5ebd4ed2bd42..4e260cff3c5d 100644 --- a/net/llc/Makefile +++ b/net/llc/Makefile @@ -22,3 +22,4 @@ llc2-y := llc_if.o llc_c_ev.o llc_c_ac.o llc_conn.o llc_c_st.o llc_pdu.o \ llc_sap.o llc_s_ac.o llc_s_ev.o llc_s_st.o af_llc.o llc_station.o llc2-$(CONFIG_PROC_FS) += llc_proc.o +llc2-$(CONFIG_SYSCTL) += sysctl_net_llc.o diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c index 95444f227510..ef125345a2db 100644 --- a/net/llc/af_llc.c +++ b/net/llc/af_llc.c @@ -877,22 +877,22 @@ static int llc_ui_setsockopt(struct socket *sock, int level, int optname, case LLC_OPT_ACK_TMR_EXP: if (opt > LLC_OPT_MAX_ACK_TMR_EXP) goto out; - llc->ack_timer.expire = opt; + llc->ack_timer.expire = opt * HZ; break; case LLC_OPT_P_TMR_EXP: if (opt > LLC_OPT_MAX_P_TMR_EXP) goto out; - llc->pf_cycle_timer.expire = opt; + llc->pf_cycle_timer.expire = opt * HZ; break; case LLC_OPT_REJ_TMR_EXP: if (opt > LLC_OPT_MAX_REJ_TMR_EXP) goto out; - llc->rej_sent_timer.expire = opt; + llc->rej_sent_timer.expire = opt * HZ; break; case LLC_OPT_BUSY_TMR_EXP: if (opt > LLC_OPT_MAX_BUSY_TMR_EXP) goto out; - llc->busy_state_timer.expire = opt; + llc->busy_state_timer.expire = opt * HZ; break; case LLC_OPT_TX_WIN: if (opt > LLC_OPT_MAX_WIN) @@ -942,17 +942,17 @@ static int llc_ui_getsockopt(struct socket *sock, int level, int optname, goto out; switch (optname) { case LLC_OPT_RETRY: - val = llc->n2; break; + val = llc->n2; break; case LLC_OPT_SIZE: - val = llc->n1; break; + val = llc->n1; break; case LLC_OPT_ACK_TMR_EXP: - val = llc->ack_timer.expire; break; + val = llc->ack_timer.expire / HZ; break; case LLC_OPT_P_TMR_EXP: - val = llc->pf_cycle_timer.expire; break; + val = llc->pf_cycle_timer.expire / HZ; break; case LLC_OPT_REJ_TMR_EXP: - val = llc->rej_sent_timer.expire; break; + val = llc->rej_sent_timer.expire / HZ; break; case LLC_OPT_BUSY_TMR_EXP: - val = llc->busy_state_timer.expire; break; + val = llc->busy_state_timer.expire / HZ; break; case LLC_OPT_TX_WIN: val = llc->k; break; case LLC_OPT_RX_WIN: @@ -999,6 +999,13 @@ static struct proto_ops llc_ui_ops = { extern void llc_sap_handler(struct llc_sap *sap, struct sk_buff *skb); extern void llc_conn_handler(struct llc_sap *sap, struct sk_buff *skb); +static char llc_proc_err_msg[] __initdata = + KERN_CRIT "LLC: Unable to register the proc_fs entries\n"; +static char llc_sysctl_err_msg[] __initdata = + KERN_CRIT "LLC: Unable to register the sysctl entries\n"; +static char llc_sock_err_msg[] __initdata = + KERN_CRIT "LLC: Unable to register the network family\n"; + static int __init llc2_init(void) { int rc = proto_register(&llc_proto, 0); @@ -1010,13 +1017,28 @@ static int __init llc2_init(void) llc_station_init(); llc_ui_sap_last_autoport = LLC_SAP_DYN_START; rc = llc_proc_init(); - if (rc != 0) + if (rc != 0) { + printk(llc_proc_err_msg); goto out_unregister_llc_proto; - sock_register(&llc_ui_family_ops); + } + rc = llc_sysctl_init(); + if (rc) { + printk(llc_sysctl_err_msg); + goto out_proc; + } + rc = sock_register(&llc_ui_family_ops); + if (rc) { + printk(llc_sock_err_msg); + goto out_sysctl; + } llc_add_pack(LLC_DEST_SAP, llc_sap_handler); llc_add_pack(LLC_DEST_CONN, llc_conn_handler); out: return rc; +out_sysctl: + llc_sysctl_exit(); +out_proc: + llc_proc_exit(); out_unregister_llc_proto: proto_unregister(&llc_proto); goto out; @@ -1029,6 +1051,7 @@ static void __exit llc2_exit(void) llc_remove_pack(LLC_DEST_CONN); sock_unregister(PF_LLC); llc_proc_exit(); + llc_sysctl_exit(); proto_unregister(&llc_proto); } diff --git a/net/llc/llc_c_ac.c b/net/llc/llc_c_ac.c index 50c827e13a9f..a4daa91003dd 100644 --- a/net/llc/llc_c_ac.c +++ b/net/llc/llc_c_ac.c @@ -620,7 +620,7 @@ int llc_conn_ac_set_remote_busy(struct sock *sk, struct sk_buff *skb) if (!llc->remote_busy_flag) { llc->remote_busy_flag = 1; mod_timer(&llc->busy_state_timer.timer, - jiffies + llc->busy_state_timer.expire * HZ); + jiffies + llc->busy_state_timer.expire); } return 0; } @@ -853,7 +853,7 @@ int llc_conn_ac_start_p_timer(struct sock *sk, struct sk_buff *skb) llc_conn_set_p_flag(sk, 1); mod_timer(&llc->pf_cycle_timer.timer, - jiffies + llc->pf_cycle_timer.expire * HZ); + jiffies + llc->pf_cycle_timer.expire); return 0; } @@ -1131,7 +1131,7 @@ int llc_conn_ac_start_ack_timer(struct sock *sk, struct sk_buff *skb) { struct llc_sock *llc = llc_sk(sk); - mod_timer(&llc->ack_timer.timer, jiffies + llc->ack_timer.expire * HZ); + mod_timer(&llc->ack_timer.timer, jiffies + llc->ack_timer.expire); return 0; } @@ -1140,7 +1140,7 @@ int llc_conn_ac_start_rej_timer(struct sock *sk, struct sk_buff *skb) struct llc_sock *llc = llc_sk(sk); mod_timer(&llc->rej_sent_timer.timer, - jiffies + llc->rej_sent_timer.expire * HZ); + jiffies + llc->rej_sent_timer.expire); return 0; } @@ -1151,7 +1151,7 @@ int llc_conn_ac_start_ack_tmr_if_not_running(struct sock *sk, if (!timer_pending(&llc->ack_timer.timer)) mod_timer(&llc->ack_timer.timer, - jiffies + llc->ack_timer.expire * HZ); + jiffies + llc->ack_timer.expire); return 0; } @@ -1199,7 +1199,7 @@ int llc_conn_ac_upd_nr_received(struct sock *sk, struct sk_buff *skb) } if (unacked) mod_timer(&llc->ack_timer.timer, - jiffies + llc->ack_timer.expire * HZ); + jiffies + llc->ack_timer.expire); } else if (llc->failed_data_req) { u8 f_bit; diff --git a/net/llc/llc_conn.c b/net/llc/llc_conn.c index ce7b893ed1ab..d3783f8ee481 100644 --- a/net/llc/llc_conn.c +++ b/net/llc/llc_conn.c @@ -40,6 +40,11 @@ static struct llc_conn_state_trans *llc_qualify_conn_ev(struct sock *sk, /* Offset table on connection states transition diagram */ static int llc_offset_table[NBR_CONN_STATES][NBR_CONN_EV]; +int sysctl_llc2_ack_timeout = LLC2_ACK_TIME * HZ; +int sysctl_llc2_p_timeout = LLC2_P_TIME * HZ; +int sysctl_llc2_rej_timeout = LLC2_REJ_TIME * HZ; +int sysctl_llc2_busy_timeout = LLC2_BUSY_TIME * HZ; + /** * llc_conn_state_process - sends event to connection state machine * @sk: connection @@ -799,22 +804,22 @@ static void llc_sk_init(struct sock* sk) llc->dec_step = llc->connect_step = 1; init_timer(&llc->ack_timer.timer); - llc->ack_timer.expire = LLC_ACK_TIME; + llc->ack_timer.expire = sysctl_llc2_ack_timeout; llc->ack_timer.timer.data = (unsigned long)sk; llc->ack_timer.timer.function = llc_conn_ack_tmr_cb; init_timer(&llc->pf_cycle_timer.timer); - llc->pf_cycle_timer.expire = LLC_P_TIME; + llc->pf_cycle_timer.expire = sysctl_llc2_p_timeout; llc->pf_cycle_timer.timer.data = (unsigned long)sk; llc->pf_cycle_timer.timer.function = llc_conn_pf_cycle_tmr_cb; init_timer(&llc->rej_sent_timer.timer); - llc->rej_sent_timer.expire = LLC_REJ_TIME; + llc->rej_sent_timer.expire = sysctl_llc2_rej_timeout; llc->rej_sent_timer.timer.data = (unsigned long)sk; llc->rej_sent_timer.timer.function = llc_conn_rej_tmr_cb; init_timer(&llc->busy_state_timer.timer); - llc->busy_state_timer.expire = LLC_BUSY_TIME; + llc->busy_state_timer.expire = sysctl_llc2_busy_timeout; llc->busy_state_timer.timer.data = (unsigned long)sk; llc->busy_state_timer.timer.function = llc_conn_busy_tmr_cb; diff --git a/net/llc/llc_station.c b/net/llc/llc_station.c index 85a7ac276141..2d764b0382ce 100644 --- a/net/llc/llc_station.c +++ b/net/llc/llc_station.c @@ -50,6 +50,10 @@ struct llc_station { struct sk_buff_head mac_pdu_q; }; +#define LLC_STATION_ACK_TIME (3 * HZ) + +int sysctl_llc_station_ack_timeout = LLC_STATION_ACK_TIME; + /* Types of events (possible values in 'ev->type') */ #define LLC_STATION_EV_TYPE_SIMPLE 1 #define LLC_STATION_EV_TYPE_CONDITION 2 @@ -218,7 +222,8 @@ static void llc_station_send_pdu(struct sk_buff *skb) static int llc_station_ac_start_ack_timer(struct sk_buff *skb) { - mod_timer(&llc_main_station.ack_timer, jiffies + LLC_ACK_TIME * HZ); + mod_timer(&llc_main_station.ack_timer, + jiffies + sysctl_llc_station_ack_timeout); return 0; } @@ -687,7 +692,8 @@ int __init llc_station_init(void) init_timer(&llc_main_station.ack_timer); llc_main_station.ack_timer.data = (unsigned long)&llc_main_station; llc_main_station.ack_timer.function = llc_station_ack_tmr_cb; - + llc_main_station.ack_timer.expires = jiffies + + sysctl_llc_station_ack_timeout; skb = alloc_skb(0, GFP_ATOMIC); if (!skb) goto out; @@ -695,7 +701,6 @@ int __init llc_station_init(void) llc_set_station_handler(llc_station_rcv); ev = llc_station_ev(skb); memset(ev, 0, sizeof(*ev)); - llc_main_station.ack_timer.expires = jiffies + 3 * HZ; llc_main_station.maximum_retry = 1; llc_main_station.state = LLC_STATION_STATE_DOWN; ev->type = LLC_STATION_EV_TYPE_SIMPLE; diff --git a/net/llc/sysctl_net_llc.c b/net/llc/sysctl_net_llc.c new file mode 100644 index 000000000000..4d99d2f27a21 --- /dev/null +++ b/net/llc/sysctl_net_llc.c @@ -0,0 +1,136 @@ +/* + * sysctl_net_llc.c: sysctl interface to LLC net subsystem. + * + * Arnaldo Carvalho de Melo + */ + +#include +#include +#include +#include + +#ifndef CONFIG_SYSCTL +#error This file should not be compiled without CONFIG_SYSCTL defined +#endif + +extern int sysctl_llc2_ack_timeout; +extern int sysctl_llc2_busy_timeout; +extern int sysctl_llc2_p_timeout; +extern int sysctl_llc2_rej_timeout; +extern int sysctl_llc_station_ack_timeout; + +static struct ctl_table llc2_timeout_table[] = { + { + .ctl_name = NET_LLC2_ACK_TIMEOUT, + .procname = "ack", + .data = &sysctl_llc2_ack_timeout, + .maxlen = sizeof(long), + .mode = 0644, + .proc_handler = &proc_dointvec_jiffies, + .strategy = &sysctl_jiffies, + }, + { + .ctl_name = NET_LLC2_BUSY_TIMEOUT, + .procname = "busy", + .data = &sysctl_llc2_busy_timeout, + .maxlen = sizeof(long), + .mode = 0644, + .proc_handler = &proc_dointvec_jiffies, + .strategy = &sysctl_jiffies, + }, + { + .ctl_name = NET_LLC2_P_TIMEOUT, + .procname = "p", + .data = &sysctl_llc2_p_timeout, + .maxlen = sizeof(long), + .mode = 0644, + .proc_handler = &proc_dointvec_jiffies, + .strategy = &sysctl_jiffies, + }, + { + .ctl_name = NET_LLC2_REJ_TIMEOUT, + .procname = "rej", + .data = &sysctl_llc2_rej_timeout, + .maxlen = sizeof(long), + .mode = 0644, + .proc_handler = &proc_dointvec_jiffies, + .strategy = &sysctl_jiffies, + }, + { 0 }, +}; + +static struct ctl_table llc_station_table[] = { + { + .ctl_name = NET_LLC_STATION_ACK_TIMEOUT, + .procname = "ack_timeout", + .data = &sysctl_llc_station_ack_timeout, + .maxlen = sizeof(long), + .mode = 0644, + .proc_handler = &proc_dointvec_jiffies, + .strategy = &sysctl_jiffies, + }, + { 0 }, +}; + +static struct ctl_table llc2_dir_timeout_table[] = { + { + .ctl_name = NET_LLC2, + .procname = "timeout", + .mode = 0555, + .child = llc2_timeout_table, + }, + { 0 }, +}; + +static struct ctl_table llc_table[] = { + { + .ctl_name = NET_LLC2, + .procname = "llc2", + .mode = 0555, + .child = llc2_dir_timeout_table, + }, + { + .ctl_name = NET_LLC_STATION, + .procname = "station", + .mode = 0555, + .child = llc_station_table, + }, + { 0 }, +}; + +static struct ctl_table llc_dir_table[] = { + { + .ctl_name = NET_LLC, + .procname = "llc", + .mode = 0555, + .child = llc_table, + }, + { 0 }, +}; + +static struct ctl_table llc_root_table[] = { + { + .ctl_name = CTL_NET, + .procname = "net", + .mode = 0555, + .child = llc_dir_table, + }, + { 0 }, +}; + +static struct ctl_table_header *llc_table_header; + +int __init llc_sysctl_init(void) +{ + llc_table_header = register_sysctl_table(llc_root_table, 1); + + return llc_table_header ? 0 : -ENOMEM; +} + +void llc_sysctl_exit(void) +{ + if (llc_table_header) { + unregister_sysctl_table(llc_table_header); + llc_table_header = NULL; + } +} From 249ff1c6d35fd32ca945967c3f0b948210a96baa Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Thu, 22 Sep 2005 04:32:10 -0300 Subject: [PATCH 025/352] [LLC]: Use some more likely/unlikely Signed-off-by: Jochen Friedrich Signed-off-by: Arnaldo Carvalho de Melo --- net/llc/af_llc.c | 10 ++++----- net/llc/llc_c_ac.c | 52 +++++++++++++++++++++---------------------- net/llc/llc_if.c | 9 +++----- net/llc/llc_output.c | 2 +- net/llc/llc_s_ac.c | 10 ++++----- net/llc/llc_station.c | 6 ++--- 6 files changed, 42 insertions(+), 47 deletions(-) diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c index ef125345a2db..7e9cf3214b88 100644 --- a/net/llc/af_llc.c +++ b/net/llc/af_llc.c @@ -116,12 +116,12 @@ static int llc_ui_send_data(struct sock* sk, struct sk_buff *skb, int noblock) struct llc_sock* llc = llc_sk(sk); int rc = 0; - if (llc_data_accept_state(llc->state) || llc->p_flag) { + if (unlikely(llc_data_accept_state(llc->state) || llc->p_flag)) { long timeout = sock_sndtimeo(sk, noblock); rc = llc_ui_wait_for_busy_core(sk, timeout); } - if (!rc) + if (unlikely(!rc)) rc = llc_build_and_send_pkt(sk, skb); return rc; } @@ -762,15 +762,13 @@ static int llc_ui_sendmsg(struct kiocb *iocb, struct socket *sock, if (!(sk->sk_type == SOCK_STREAM && !addr->sllc_ua)) goto out; rc = llc_ui_send_data(sk, skb, noblock); - if (rc) - dprintk("%s: llc_ui_send_data failed: %d\n", __FUNCTION__, rc); out: - if (rc) + if (rc) { kfree_skb(skb); release: - if (rc) dprintk("%s: failed sending from %02X to %02X: %d\n", __FUNCTION__, llc->laddr.lsap, llc->daddr.lsap, rc); + } release_sock(sk); return rc ? : copied; } diff --git a/net/llc/llc_c_ac.c b/net/llc/llc_c_ac.c index a4daa91003dd..9d9b6c8aeb44 100644 --- a/net/llc/llc_c_ac.c +++ b/net/llc/llc_c_ac.c @@ -221,7 +221,7 @@ int llc_conn_ac_send_disc_cmd_p_set_x(struct sock *sk, struct sk_buff *skb) llc->daddr.lsap, LLC_PDU_CMD); llc_pdu_init_as_disc_cmd(nskb, 1); rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac); - if (rc) + if (unlikely(rc)) goto free; llc_conn_send_pdu(sk, nskb); llc_conn_ac_set_p_flag_1(sk, skb); @@ -248,7 +248,7 @@ int llc_conn_ac_send_dm_rsp_f_set_p(struct sock *sk, struct sk_buff *skb) llc->daddr.lsap, LLC_PDU_RSP); llc_pdu_init_as_dm_rsp(nskb, f_bit); rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac); - if (rc) + if (unlikely(rc)) goto free; llc_conn_send_pdu(sk, nskb); } @@ -272,7 +272,7 @@ int llc_conn_ac_send_dm_rsp_f_set_1(struct sock *sk, struct sk_buff *skb) llc->daddr.lsap, LLC_PDU_RSP); llc_pdu_init_as_dm_rsp(nskb, 1); rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac); - if (rc) + if (unlikely(rc)) goto free; llc_conn_send_pdu(sk, nskb); } @@ -305,7 +305,7 @@ int llc_conn_ac_send_frmr_rsp_f_set_x(struct sock *sk, struct sk_buff *skb) llc_pdu_init_as_frmr_rsp(nskb, pdu, f_bit, llc->vS, llc->vR, INCORRECT); rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac); - if (rc) + if (unlikely(rc)) goto free; llc_conn_send_pdu(sk, nskb); } @@ -331,7 +331,7 @@ int llc_conn_ac_resend_frmr_rsp_f_set_0(struct sock *sk, struct sk_buff *skb) llc_pdu_init_as_frmr_rsp(nskb, pdu, 0, llc->vS, llc->vR, INCORRECT); rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac); - if (rc) + if (unlikely(rc)) goto free; llc_conn_send_pdu(sk, nskb); } @@ -360,7 +360,7 @@ int llc_conn_ac_resend_frmr_rsp_f_set_p(struct sock *sk, struct sk_buff *skb) llc_pdu_init_as_frmr_rsp(nskb, pdu, f_bit, llc->vS, llc->vR, INCORRECT); rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac); - if (rc) + if (unlikely(rc)) goto free; llc_conn_send_pdu(sk, nskb); } @@ -381,7 +381,7 @@ int llc_conn_ac_send_i_cmd_p_set_1(struct sock *sk, struct sk_buff *skb) llc->daddr.lsap, LLC_PDU_CMD); llc_pdu_init_as_i_cmd(skb, 1, llc->vS, llc->vR); rc = llc_mac_hdr_init(skb, llc->dev->dev_addr, llc->daddr.mac); - if (!rc) { + if (likely(!rc)) { llc_conn_send_pdu(sk, skb); llc_conn_ac_inc_vs_by_1(sk, skb); } @@ -398,7 +398,7 @@ static int llc_conn_ac_send_i_cmd_p_set_0(struct sock *sk, struct sk_buff *skb) llc->daddr.lsap, LLC_PDU_CMD); llc_pdu_init_as_i_cmd(skb, 0, llc->vS, llc->vR); rc = llc_mac_hdr_init(skb, llc->dev->dev_addr, llc->daddr.mac); - if (!rc) { + if (likely(!rc)) { llc_conn_send_pdu(sk, skb); llc_conn_ac_inc_vs_by_1(sk, skb); } @@ -415,7 +415,7 @@ int llc_conn_ac_send_i_xxx_x_set_0(struct sock *sk, struct sk_buff *skb) llc->daddr.lsap, LLC_PDU_CMD); llc_pdu_init_as_i_cmd(skb, 0, llc->vS, llc->vR); rc = llc_mac_hdr_init(skb, llc->dev->dev_addr, llc->daddr.mac); - if (!rc) { + if (likely(!rc)) { llc_conn_send_pdu(sk, skb); llc_conn_ac_inc_vs_by_1(sk, skb); } @@ -447,7 +447,7 @@ int llc_conn_ac_resend_i_xxx_x_set_0_or_send_rr(struct sock *sk, llc->daddr.lsap, LLC_PDU_RSP); llc_pdu_init_as_rr_rsp(nskb, 0, llc->vR); rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac); - if (!rc) + if (likely(!rc)) llc_conn_send_pdu(sk, nskb); else kfree_skb(skb); @@ -482,7 +482,7 @@ int llc_conn_ac_send_rej_cmd_p_set_1(struct sock *sk, struct sk_buff *skb) llc->daddr.lsap, LLC_PDU_CMD); llc_pdu_init_as_rej_cmd(nskb, 1, llc->vR); rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac); - if (rc) + if (unlikely(rc)) goto free; llc_conn_send_pdu(sk, nskb); } @@ -506,7 +506,7 @@ int llc_conn_ac_send_rej_rsp_f_set_1(struct sock *sk, struct sk_buff *skb) llc->daddr.lsap, LLC_PDU_RSP); llc_pdu_init_as_rej_rsp(nskb, 1, llc->vR); rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac); - if (rc) + if (unlikely(rc)) goto free; llc_conn_send_pdu(sk, nskb); } @@ -530,7 +530,7 @@ int llc_conn_ac_send_rej_xxx_x_set_0(struct sock *sk, struct sk_buff *skb) llc->daddr.lsap, LLC_PDU_RSP); llc_pdu_init_as_rej_rsp(nskb, 0, llc->vR); rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac); - if (rc) + if (unlikely(rc)) goto free; llc_conn_send_pdu(sk, nskb); } @@ -554,7 +554,7 @@ int llc_conn_ac_send_rnr_cmd_p_set_1(struct sock *sk, struct sk_buff *skb) llc->daddr.lsap, LLC_PDU_CMD); llc_pdu_init_as_rnr_cmd(nskb, 1, llc->vR); rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac); - if (rc) + if (unlikely(rc)) goto free; llc_conn_send_pdu(sk, nskb); } @@ -578,7 +578,7 @@ int llc_conn_ac_send_rnr_rsp_f_set_1(struct sock *sk, struct sk_buff *skb) llc->daddr.lsap, LLC_PDU_RSP); llc_pdu_init_as_rnr_rsp(nskb, 1, llc->vR); rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac); - if (rc) + if (unlikely(rc)) goto free; llc_conn_send_pdu(sk, nskb); } @@ -602,7 +602,7 @@ int llc_conn_ac_send_rnr_xxx_x_set_0(struct sock *sk, struct sk_buff *skb) llc->daddr.lsap, LLC_PDU_RSP); llc_pdu_init_as_rnr_rsp(nskb, 0, llc->vR); rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac); - if (rc) + if (unlikely(rc)) goto free; llc_conn_send_pdu(sk, nskb); } @@ -638,7 +638,7 @@ int llc_conn_ac_opt_send_rnr_xxx_x_set_0(struct sock *sk, struct sk_buff *skb) llc->daddr.lsap, LLC_PDU_RSP); llc_pdu_init_as_rnr_rsp(nskb, 0, llc->vR); rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac); - if (rc) + if (unlikely(rc)) goto free; llc_conn_send_pdu(sk, nskb); } @@ -662,7 +662,7 @@ int llc_conn_ac_send_rr_cmd_p_set_1(struct sock *sk, struct sk_buff *skb) llc->daddr.lsap, LLC_PDU_CMD); llc_pdu_init_as_rr_cmd(nskb, 1, llc->vR); rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac); - if (rc) + if (unlikely(rc)) goto free; llc_conn_send_pdu(sk, nskb); } @@ -687,7 +687,7 @@ int llc_conn_ac_send_rr_rsp_f_set_1(struct sock *sk, struct sk_buff *skb) llc->daddr.lsap, LLC_PDU_RSP); llc_pdu_init_as_rr_rsp(nskb, f_bit, llc->vR); rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac); - if (rc) + if (unlikely(rc)) goto free; llc_conn_send_pdu(sk, nskb); } @@ -711,7 +711,7 @@ int llc_conn_ac_send_ack_rsp_f_set_1(struct sock *sk, struct sk_buff *skb) llc->daddr.lsap, LLC_PDU_RSP); llc_pdu_init_as_rr_rsp(nskb, 1, llc->vR); rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac); - if (rc) + if (unlikely(rc)) goto free; llc_conn_send_pdu(sk, nskb); } @@ -735,7 +735,7 @@ int llc_conn_ac_send_rr_xxx_x_set_0(struct sock *sk, struct sk_buff *skb) llc->daddr.lsap, LLC_PDU_RSP); llc_pdu_init_as_rr_rsp(nskb, 0, llc->vR); rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac); - if (rc) + if (unlikely(rc)) goto free; llc_conn_send_pdu(sk, nskb); } @@ -759,7 +759,7 @@ int llc_conn_ac_send_ack_xxx_x_set_0(struct sock *sk, struct sk_buff *skb) llc->daddr.lsap, LLC_PDU_RSP); llc_pdu_init_as_rr_rsp(nskb, 0, llc->vR); rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac); - if (rc) + if (unlikely(rc)) goto free; llc_conn_send_pdu(sk, nskb); } @@ -796,7 +796,7 @@ int llc_conn_ac_send_sabme_cmd_p_set_x(struct sock *sk, struct sk_buff *skb) llc->daddr.lsap, LLC_PDU_CMD); llc_pdu_init_as_sabme_cmd(nskb, 1); rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, dmac); - if (rc) + if (unlikely(rc)) goto free; llc_conn_send_pdu(sk, nskb); llc_conn_set_p_flag(sk, 1); @@ -824,7 +824,7 @@ int llc_conn_ac_send_ua_rsp_f_set_p(struct sock *sk, struct sk_buff *skb) llc->daddr.lsap, LLC_PDU_RSP); llc_pdu_init_as_ua_rsp(nskb, f_bit); rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac); - if (rc) + if (unlikely(rc)) goto free; llc_conn_send_pdu(sk, nskb); } @@ -924,7 +924,7 @@ static int llc_conn_ac_send_i_rsp_f_set_ackpf(struct sock *sk, llc->daddr.lsap, LLC_PDU_RSP); llc_pdu_init_as_i_cmd(skb, llc->ack_pf, llc->vS, llc->vR); rc = llc_mac_hdr_init(skb, llc->dev->dev_addr, llc->daddr.mac); - if (!rc) { + if (likely(!rc)) { llc_conn_send_pdu(sk, skb); llc_conn_ac_inc_vs_by_1(sk, skb); } @@ -978,7 +978,7 @@ static int llc_conn_ac_send_rr_rsp_f_set_ackpf(struct sock *sk, llc->daddr.lsap, LLC_PDU_RSP); llc_pdu_init_as_rr_rsp(nskb, llc->ack_pf, llc->vR); rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac); - if (rc) + if (unlikely(rc)) goto free; llc_conn_send_pdu(sk, nskb); } diff --git a/net/llc/llc_if.c b/net/llc/llc_if.c index 0f84f66018e4..764dbd704051 100644 --- a/net/llc/llc_if.c +++ b/net/llc/llc_if.c @@ -47,14 +47,11 @@ int llc_build_and_send_pkt(struct sock *sk, struct sk_buff *skb) int rc = -ECONNABORTED; struct llc_sock *llc = llc_sk(sk); - if (llc->state == LLC_CONN_STATE_ADM) + if (unlikely(llc->state == LLC_CONN_STATE_ADM)) goto out; rc = -EBUSY; - if (llc_data_accept_state(llc->state)) { /* data_conn_refuse */ - llc->failed_data_req = 1; - goto out; - } - if (llc->p_flag) { + if (unlikely(llc_data_accept_state(llc->state) || /* data_conn_refuse */ + llc->p_flag)) { llc->failed_data_req = 1; goto out; } diff --git a/net/llc/llc_output.c b/net/llc/llc_output.c index ab5784cf163e..b4d55b6abb67 100644 --- a/net/llc/llc_output.c +++ b/net/llc/llc_output.c @@ -98,7 +98,7 @@ int llc_build_and_send_ui_pkt(struct llc_sap *sap, struct sk_buff *skb, dsap, LLC_PDU_CMD); llc_pdu_init_as_ui_cmd(skb); rc = llc_mac_hdr_init(skb, skb->dev->dev_addr, dmac); - if (!rc) + if (likely(!rc)) rc = dev_queue_xmit(skb); return rc; } diff --git a/net/llc/llc_s_ac.c b/net/llc/llc_s_ac.c index 270b2f2030cd..6acdebf03b2b 100644 --- a/net/llc/llc_s_ac.c +++ b/net/llc/llc_s_ac.c @@ -58,7 +58,7 @@ int llc_sap_action_send_ui(struct llc_sap *sap, struct sk_buff *skb) ev->daddr.lsap, LLC_PDU_CMD); llc_pdu_init_as_ui_cmd(skb); rc = llc_mac_hdr_init(skb, ev->saddr.mac, ev->daddr.mac); - if (!rc) + if (likely(!rc)) rc = dev_queue_xmit(skb); return rc; } @@ -81,7 +81,7 @@ int llc_sap_action_send_xid_c(struct llc_sap *sap, struct sk_buff *skb) ev->daddr.lsap, LLC_PDU_CMD); llc_pdu_init_as_xid_cmd(skb, LLC_XID_NULL_CLASS_2, 0); rc = llc_mac_hdr_init(skb, ev->saddr.mac, ev->daddr.mac); - if (!rc) + if (likely(!rc)) rc = dev_queue_xmit(skb); return rc; } @@ -110,7 +110,7 @@ int llc_sap_action_send_xid_r(struct llc_sap *sap, struct sk_buff *skb) LLC_PDU_RSP); llc_pdu_init_as_xid_rsp(nskb, LLC_XID_NULL_CLASS_2, 0); rc = llc_mac_hdr_init(nskb, mac_sa, mac_da); - if (!rc) + if (likely(!rc)) rc = dev_queue_xmit(nskb); out: return rc; @@ -134,7 +134,7 @@ int llc_sap_action_send_test_c(struct llc_sap *sap, struct sk_buff *skb) ev->daddr.lsap, LLC_PDU_CMD); llc_pdu_init_as_test_cmd(skb); rc = llc_mac_hdr_init(skb, ev->saddr.mac, ev->daddr.mac); - if (!rc) + if (likely(!rc)) rc = dev_queue_xmit(skb); return rc; } @@ -155,7 +155,7 @@ int llc_sap_action_send_test_r(struct llc_sap *sap, struct sk_buff *skb) LLC_PDU_RSP); llc_pdu_init_as_test_rsp(nskb, skb); rc = llc_mac_hdr_init(nskb, mac_sa, mac_da); - if (!rc) + if (likely(!rc)) rc = dev_queue_xmit(nskb); out: return rc; diff --git a/net/llc/llc_station.c b/net/llc/llc_station.c index 2d764b0382ce..ec4693fe312f 100644 --- a/net/llc/llc_station.c +++ b/net/llc/llc_station.c @@ -261,7 +261,7 @@ static int llc_station_ac_send_null_dsap_xid_c(struct sk_buff *skb) llc_pdu_header_init(nskb, LLC_PDU_TYPE_U, 0, 0, LLC_PDU_CMD); llc_pdu_init_as_xid_cmd(nskb, LLC_XID_NULL_CLASS_2, 127); rc = llc_mac_hdr_init(nskb, llc_station_mac_sa, llc_station_mac_sa); - if (rc) + if (unlikely(rc)) goto free; llc_station_send_pdu(nskb); out: @@ -285,7 +285,7 @@ static int llc_station_ac_send_xid_r(struct sk_buff *skb) llc_pdu_header_init(nskb, LLC_PDU_TYPE_U, 0, dsap, LLC_PDU_RSP); llc_pdu_init_as_xid_rsp(nskb, LLC_XID_NULL_CLASS_2, 127); rc = llc_mac_hdr_init(nskb, llc_station_mac_sa, mac_da); - if (rc) + if (unlikely(rc)) goto free; llc_station_send_pdu(nskb); out: @@ -309,7 +309,7 @@ static int llc_station_ac_send_test_r(struct sk_buff *skb) llc_pdu_header_init(nskb, LLC_PDU_TYPE_U, 0, dsap, LLC_PDU_RSP); llc_pdu_init_as_test_rsp(nskb, skb); rc = llc_mac_hdr_init(nskb, llc_station_mac_sa, mac_da); - if (rc) + if (unlikely(rc)) goto free; llc_station_send_pdu(nskb); out: From afdbe35787ea3390af0f1dd38b3dd9d8a8d313e7 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Thu, 22 Sep 2005 04:37:07 -0300 Subject: [PATCH 026/352] [LLC]: Use sk_wait_data Signed-off-by: Jochen Friedrich Signed-off-by: Arnaldo Carvalho de Melo --- net/llc/af_llc.c | 56 ++++++++++++++++++++++++++---------------------- 1 file changed, 30 insertions(+), 26 deletions(-) diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c index 7e9cf3214b88..f536369cdb52 100644 --- a/net/llc/af_llc.c +++ b/net/llc/af_llc.c @@ -39,7 +39,6 @@ static struct proto_ops llc_ui_ops; static int llc_ui_wait_for_conn(struct sock *sk, long timeout); static int llc_ui_wait_for_disc(struct sock *sk, long timeout); -static int llc_ui_wait_for_data(struct sock *sk, long timeout); static int llc_ui_wait_for_busy_core(struct sock *sk, long timeout); #if 0 @@ -524,29 +523,6 @@ static int llc_ui_wait_for_conn(struct sock *sk, long timeout) return timeout; } -static int llc_ui_wait_for_data(struct sock *sk, long timeout) -{ - DEFINE_WAIT(wait); - int rc = 0; - - while (1) { - prepare_to_wait(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE); - if (sk_wait_event(sk, &timeout, - (sk->sk_shutdown & RCV_SHUTDOWN) || - (!skb_queue_empty(&sk->sk_receive_queue)))) - break; - rc = -ERESTARTSYS; - if (signal_pending(current)) - break; - rc = -EAGAIN; - if (!timeout) - break; - rc = 0; - } - finish_wait(sk->sk_sleep, &wait); - return rc; -} - static int llc_ui_wait_for_busy_core(struct sock *sk, long timeout) { DEFINE_WAIT(wait); @@ -572,6 +548,34 @@ static int llc_ui_wait_for_busy_core(struct sock *sk, long timeout) return rc; } +int llc_wait_data(struct sock *sk, long timeo) +{ + int rc; + + while (1) { + /* + * POSIX 1003.1g mandates this order. + */ + if (sk->sk_err) { + rc = sock_error(sk); + break; + } + rc = 0; + if (sk->sk_shutdown & RCV_SHUTDOWN) + break; + rc = -EAGAIN; + if (!timeo) + break; + rc = sock_intr_errno(timeo); + if (signal_pending(current)) + break; + rc = 0; + if (sk_wait_data(sk, &timeo)) + break; + } + return rc; +} + /** * llc_ui_accept - accept a new incoming connection. * @sock: Socket which connections arrive on. @@ -599,7 +603,7 @@ static int llc_ui_accept(struct socket *sock, struct socket *newsock, int flags) goto out; /* wait for a connection to arrive. */ if (skb_queue_empty(&sk->sk_receive_queue)) { - rc = llc_ui_wait_for_data(sk, sk->sk_rcvtimeo); + rc = llc_wait_data(sk, sk->sk_rcvtimeo); if (rc) goto out; } @@ -658,7 +662,7 @@ static int llc_ui_recvmsg(struct kiocb *iocb, struct socket *sock, llc_sk(sk)->laddr.lsap, llc_sk(sk)->daddr.lsap); lock_sock(sk); if (skb_queue_empty(&sk->sk_receive_queue)) { - rc = llc_ui_wait_for_data(sk, sock_rcvtimeo(sk, noblock)); + rc = llc_wait_data(sk, sock_rcvtimeo(sk, noblock)); if (rc) goto out; } From 04e4223f44b89e50f275cb6b95a58ebe2c4909be Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Thu, 22 Sep 2005 04:40:59 -0300 Subject: [PATCH 027/352] [LLC]: Do better struct sock accounting on skbs Signed-off-by: Jochen Friedrich Signed-off-by: Arnaldo Carvalho de Melo --- include/net/llc_sap.h | 6 ++++-- net/llc/af_llc.c | 2 -- net/llc/llc_c_ac.c | 2 +- net/llc/llc_conn.c | 14 +++++++++----- net/llc/llc_sap.c | 8 ++++---- 5 files changed, 18 insertions(+), 14 deletions(-) diff --git a/include/net/llc_sap.h b/include/net/llc_sap.h index 6dd4cdccca42..9dcfcf4a4abb 100644 --- a/include/net/llc_sap.h +++ b/include/net/llc_sap.h @@ -12,11 +12,13 @@ * See the GNU General Public License for more details. */ struct llc_sap; -struct sk_buff; struct net_device; +struct sk_buff; +struct sock; extern void llc_sap_rtn_pdu(struct llc_sap *sap, struct sk_buff *skb); -extern void llc_save_primitive(struct sk_buff* skb, unsigned char prim); +extern void llc_save_primitive(struct sock *sk, struct sk_buff* skb, + unsigned char prim); extern struct sk_buff *llc_alloc_frame(struct net_device *dev); extern void llc_build_and_send_test_pkt(struct llc_sap *sap, diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c index f536369cdb52..ad9aad807aa8 100644 --- a/net/llc/af_llc.c +++ b/net/llc/af_llc.c @@ -628,7 +628,6 @@ static int llc_ui_accept(struct socket *sock, struct socket *newsock, int flags) /* put original socket back into a clean listen state. */ sk->sk_state = TCP_LISTEN; sk->sk_ack_backlog--; - skb->sk = NULL; dprintk("%s: ok success on %02X, client on %02X\n", __FUNCTION__, llc_sk(sk)->addr.sllc_sap, newllc->daddr.lsap); frees: @@ -740,7 +739,6 @@ static int llc_ui_sendmsg(struct kiocb *iocb, struct socket *sock, lock_sock(sk); if (!skb) goto release; - skb->sk = sk; skb->dev = llc->dev; skb->protocol = llc_proto_type(addr->sllc_arphrd); skb_reserve(skb, hdrlen); diff --git a/net/llc/llc_c_ac.c b/net/llc/llc_c_ac.c index 9d9b6c8aeb44..c1e75103189a 100644 --- a/net/llc/llc_c_ac.c +++ b/net/llc/llc_c_ac.c @@ -1335,7 +1335,7 @@ static void llc_conn_tmr_common_cb(unsigned long timeout_data, u8 type) if (skb) { struct llc_conn_state_ev *ev = llc_conn_ev(skb); - skb->sk = sk; + skb_set_owner_r(skb, sk); ev->type = type; llc_process_tmr_ev(sk, skb); } diff --git a/net/llc/llc_conn.c b/net/llc/llc_conn.c index d3783f8ee481..9f0e10e0978d 100644 --- a/net/llc/llc_conn.c +++ b/net/llc/llc_conn.c @@ -90,8 +90,8 @@ int llc_conn_state_process(struct sock *sk, struct sk_buff *skb) switch (ev->ind_prim) { case LLC_DATA_PRIM: - llc_save_primitive(skb, LLC_DATA_PRIM); - if (sock_queue_rcv_skb(sk, skb)) { + llc_save_primitive(sk, skb, LLC_DATA_PRIM); + if (unlikely(sock_queue_rcv_skb(sk, skb))) { /* * shouldn't happen */ @@ -103,6 +103,11 @@ int llc_conn_state_process(struct sock *sk, struct sk_buff *skb) case LLC_CONN_PRIM: { struct sock *parent = skb->sk; + skb_orphan(skb); + /* + * Set the skb->sk to the new struct sock, so that at accept + * type the upper layer can get the newly created struct sock. + */ skb->sk = sk; skb_queue_tail(&parent->sk_receive_queue, skb); sk->sk_state_change(parent); @@ -702,10 +707,9 @@ void llc_conn_handler(struct llc_sap *sap, struct sk_buff *skb) memcpy(&llc->daddr, &saddr, sizeof(llc->daddr)); llc_sap_add_socket(sap, sk); sock_hold(sk); + skb_set_owner_r(skb, parent); sock_put(parent); - skb->sk = parent; - } else - skb->sk = sk; + } bh_lock_sock(sk); if (!sock_owned_by_user(sk)) llc_conn_rcv(sk, skb); diff --git a/net/llc/llc_sap.c b/net/llc/llc_sap.c index 0adaa289bf0a..9f064b3a4335 100644 --- a/net/llc/llc_sap.c +++ b/net/llc/llc_sap.c @@ -45,12 +45,12 @@ struct sk_buff *llc_alloc_frame(struct net_device *dev) return skb; } -void llc_save_primitive(struct sk_buff* skb, u8 prim) +void llc_save_primitive(struct sock *sk, struct sk_buff* skb, u8 prim) { struct sockaddr_llc *addr = llc_ui_skb_cb(skb); /* save primitive for use by the user. */ - addr->sllc_family = skb->sk->sk_family; + addr->sllc_family = sk->sk_family; addr->sllc_arphrd = skb->dev->type; addr->sllc_test = prim == LLC_TEST_PRIM; addr->sllc_xid = prim == LLC_XID_PRIM; @@ -190,7 +190,7 @@ static void llc_sap_state_process(struct llc_sap *sap, struct sk_buff *skb) if (skb->sk->sk_state == TCP_LISTEN) kfree_skb(skb); else { - llc_save_primitive(skb, ev->prim); + llc_save_primitive(skb->sk, skb, ev->prim); /* queue skb to the user. */ if (sock_queue_rcv_skb(skb->sk, skb)) @@ -309,7 +309,7 @@ void llc_sap_handler(struct llc_sap *sap, struct sk_buff *skb) sk = llc_lookup_dgram(sap, &laddr); if (sk) { - skb->sk = sk; + skb_set_owner_r(skb, sk); llc_sap_rcv(sap, skb); sock_put(sk); } else From 6e2144b76840be09924de1626e2dcd7b315f75b3 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Thu, 22 Sep 2005 04:43:05 -0300 Subject: [PATCH 028/352] [LLC]: Use refcounting with struct llc_sap Signed-off-by: Jochen Friedrich Signed-off-by: Arnaldo Carvalho de Melo --- include/net/llc.h | 16 +++++++++++++++- include/net/llc_conn.h | 1 - net/802/p8022.c | 2 +- net/802/psnap.c | 2 +- net/llc/af_llc.c | 11 ++++++----- net/llc/llc_c_ac.c | 1 + net/llc/llc_conn.c | 28 ++-------------------------- net/llc/llc_core.c | 34 +++++++++++++++++++++++----------- net/llc/llc_input.c | 9 +++++++-- 9 files changed, 56 insertions(+), 48 deletions(-) diff --git a/include/net/llc.h b/include/net/llc.h index 8b8e2be289b1..93e5b443a9a7 100644 --- a/include/net/llc.h +++ b/include/net/llc.h @@ -17,6 +17,8 @@ #include #include +#include + struct net_device; struct packet_type; struct sk_buff; @@ -44,6 +46,7 @@ struct llc_sap { unsigned char state; unsigned char p_bit; unsigned char f_bit; + atomic_t refcnt; int (*rcv_func)(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt, @@ -81,7 +84,18 @@ extern struct llc_sap *llc_sap_open(unsigned char lsap, struct net_device *dev, struct packet_type *pt, struct net_device *orig_dev)); -extern void llc_sap_close(struct llc_sap *sap); +static inline void llc_sap_hold(struct llc_sap *sap) +{ + atomic_inc(&sap->refcnt); +} + +static inline void llc_sap_put(struct llc_sap *sap) +{ + extern void llc_sap_close(struct llc_sap *sap); + + if (atomic_dec_and_test(&sap->refcnt)) + llc_sap_close(sap); +} extern struct llc_sap *llc_sap_find(unsigned char sap_value); diff --git a/include/net/llc_conn.h b/include/net/llc_conn.h index 8a8ff4810135..b2889218c76a 100644 --- a/include/net/llc_conn.h +++ b/include/net/llc_conn.h @@ -115,5 +115,4 @@ extern void llc_sap_remove_socket(struct llc_sap *sap, struct sock *sk); extern u8 llc_data_accept_state(u8 state); extern void llc_build_offset_table(void); -extern int llc_release_sockets(struct llc_sap *sap); #endif /* LLC_CONN_H */ diff --git a/net/802/p8022.c b/net/802/p8022.c index b24817c63ca8..2530f35241cd 100644 --- a/net/802/p8022.c +++ b/net/802/p8022.c @@ -56,7 +56,7 @@ struct datalink_proto *register_8022_client(unsigned char type, void unregister_8022_client(struct datalink_proto *proto) { - llc_sap_close(proto->sap); + llc_sap_put(proto->sap); kfree(proto); } diff --git a/net/802/psnap.c b/net/802/psnap.c index ab80b1fab53c..4d638944d933 100644 --- a/net/802/psnap.c +++ b/net/802/psnap.c @@ -106,7 +106,7 @@ module_init(snap_init); static void __exit snap_exit(void) { - llc_sap_close(snap_sap); + llc_sap_put(snap_sap); } module_exit(snap_exit); diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c index ad9aad807aa8..a75b8f2aab19 100644 --- a/net/llc/af_llc.c +++ b/net/llc/af_llc.c @@ -21,6 +21,7 @@ * See the GNU General Public License for more details. */ #include +#include #include #include #include @@ -188,10 +189,6 @@ static int llc_ui_release(struct socket *sock) if (!sock_flag(sk, SOCK_ZAPPED)) llc_sap_remove_socket(llc->sap, sk); release_sock(sk); - if (llc->sap && hlist_empty(&llc->sap->sk_list.list)) { - llc_release_sockets(llc->sap); - llc_sap_close(llc->sap); - } if (llc->dev) dev_put(llc->dev); sock_put(sk); @@ -220,6 +217,7 @@ static int llc_ui_autoport(void) llc_ui_sap_last_autoport = i + 2; goto out; } + llc_sap_put(sap); } llc_ui_sap_last_autoport = LLC_SAP_DYN_START; tries++; @@ -310,6 +308,7 @@ static int llc_ui_bind(struct socket *sock, struct sockaddr *uaddr, int addrlen) rc = -EBUSY; /* some other network layer is using the sap */ if (!sap) goto out; + llc_sap_hold(sap); } else { struct llc_addr laddr, daddr; struct sock *ask; @@ -326,7 +325,7 @@ static int llc_ui_bind(struct socket *sock, struct sockaddr *uaddr, int addrlen) ask = llc_lookup_established(sap, &daddr, &laddr); if (ask) { sock_put(ask); - goto out; + goto out_put; } } llc->laddr.lsap = addr->sllc_sap; @@ -336,6 +335,8 @@ static int llc_ui_bind(struct socket *sock, struct sockaddr *uaddr, int addrlen) llc_sap_add_socket(sap, sk); sock_reset_flag(sk, SOCK_ZAPPED); rc = 0; +out_put: + llc_sap_put(sap); out: return rc; } diff --git a/net/llc/llc_c_ac.c b/net/llc/llc_c_ac.c index c1e75103189a..05236c2cbb9e 100644 --- a/net/llc/llc_c_ac.c +++ b/net/llc/llc_c_ac.c @@ -75,6 +75,7 @@ int llc_conn_ac_conn_ind(struct sock *sk, struct sk_buff *skb) llc->dev = skb->dev; ev->ind_prim = LLC_CONN_PRIM; rc = 0; + llc_sap_put(sap); } return rc; } diff --git a/net/llc/llc_conn.c b/net/llc/llc_conn.c index 9f0e10e0978d..ab9e6d7e2875 100644 --- a/net/llc/llc_conn.c +++ b/net/llc/llc_conn.c @@ -633,6 +633,7 @@ static int llc_find_offset(int state, int ev_type) */ void llc_sap_add_socket(struct llc_sap *sap, struct sock *sk) { + llc_sap_hold(sap); write_lock_bh(&sap->sk_list.lock); llc_sk(sk)->sap = sap; sk_add_node(sk, &sap->sk_list.list); @@ -652,6 +653,7 @@ void llc_sap_remove_socket(struct llc_sap *sap, struct sock *sk) write_lock_bh(&sap->sk_list.lock); sk_del_node_init(sk); write_unlock_bh(&sap->sk_list.lock); + llc_sap_put(sap); } /** @@ -730,32 +732,6 @@ drop: static atomic_t llc_sock_nr; #endif -/** - * llc_release_sockets - releases all sockets in a sap - * @sap: sap to release its sockets - * - * Releases all connections of a sap. Returns 0 if all actions complete - * successfully, nonzero otherwise - */ -int llc_release_sockets(struct llc_sap *sap) -{ - int rc = 0; - struct sock *sk; - struct hlist_node *node; - - write_lock_bh(&sap->sk_list.lock); - - sk_for_each(sk, node, &sap->sk_list.list) { - llc_sk(sk)->state = LLC_CONN_STATE_TEMP; - - if (llc_send_disc(sk)) - rc = 1; - } - - write_unlock_bh(&sap->sk_list.lock); - return rc; -} - /** * llc_backlog_rcv - Processes rx frames and expired timers. * @sk: LLC sock (p8022 connection) diff --git a/net/llc/llc_core.c b/net/llc/llc_core.c index 9727455bf0e7..9ccff1266b26 100644 --- a/net/llc/llc_core.c +++ b/net/llc/llc_core.c @@ -40,6 +40,7 @@ static struct llc_sap *llc_sap_alloc(void) sap->state = LLC_SAP_STATE_ACTIVE; memcpy(sap->laddr.mac, llc_station_mac_sa, ETH_ALEN); rwlock_init(&sap->sk_list.lock); + atomic_set(&sap->refcnt, 1); } return sap; } @@ -52,9 +53,7 @@ static struct llc_sap *llc_sap_alloc(void) */ static void llc_add_sap(struct llc_sap *sap) { - write_lock_bh(&llc_sap_list_lock); list_add_tail(&sap->node, &llc_sap_list); - write_unlock_bh(&llc_sap_list_lock); } /** @@ -70,11 +69,25 @@ static void llc_del_sap(struct llc_sap *sap) write_unlock_bh(&llc_sap_list_lock); } +struct llc_sap *__llc_sap_find(unsigned char sap_value) +{ + struct llc_sap* sap; + + list_for_each_entry(sap, &llc_sap_list, node) + if (sap->laddr.lsap == sap_value) + goto out; + sap = NULL; +out: + return sap; +} + /** * llc_sap_find - searchs a SAP in station * @sap_value: sap to be found * * Searchs for a sap in the sap list of the LLC's station upon the sap ID. + * If the sap is found it will be refcounted and the user will have to do + * a llc_sap_put after use. * Returns the sap or %NULL if not found. */ struct llc_sap *llc_sap_find(unsigned char sap_value) @@ -82,11 +95,9 @@ struct llc_sap *llc_sap_find(unsigned char sap_value) struct llc_sap* sap; read_lock_bh(&llc_sap_list_lock); - list_for_each_entry(sap, &llc_sap_list, node) - if (sap->laddr.lsap == sap_value) - goto out; - sap = NULL; -out: + sap = __llc_sap_find(sap_value); + if (sap) + llc_sap_hold(sap); read_unlock_bh(&llc_sap_list_lock); return sap; } @@ -106,19 +117,20 @@ struct llc_sap *llc_sap_open(unsigned char lsap, struct packet_type *pt, struct net_device *orig_dev)) { - struct llc_sap *sap = llc_sap_find(lsap); + struct llc_sap *sap = NULL; - if (sap) { /* SAP already exists */ - sap = NULL; + write_lock_bh(&llc_sap_list_lock); + if (__llc_sap_find(lsap)) /* SAP already exists */ goto out; - } sap = llc_sap_alloc(); if (!sap) goto out; sap->laddr.lsap = lsap; sap->rcv_func = func; + llc_sap_hold(sap); llc_add_sap(sap); out: + write_unlock_bh(&llc_sap_list_lock); return sap; } diff --git a/net/llc/llc_input.c b/net/llc/llc_input.c index 60c1acac7c97..789eec426451 100644 --- a/net/llc/llc_input.c +++ b/net/llc/llc_input.c @@ -166,17 +166,22 @@ int llc_rcv(struct sk_buff *skb, struct net_device *dev, */ if (sap->rcv_func) { sap->rcv_func(skb, dev, pt, orig_dev); - goto out; + goto out_put; } dest = llc_pdu_type(skb); if (unlikely(!dest || !llc_type_handlers[dest - 1])) - goto drop; + goto drop_put; llc_type_handlers[dest - 1](sap, skb); +out_put: + llc_sap_put(sap); out: return 0; drop: kfree_skb(skb); goto out; +drop_put: + kfree_skb(skb); + goto out_put; handle_station: if (!llc_station_handler) goto drop; From cf309e3fb863b7a245b91f816193957f6daf786f Mon Sep 17 00:00:00 2001 From: Jochen Friedrich Date: Thu, 22 Sep 2005 04:44:55 -0300 Subject: [PATCH 029/352] [LLC]: Fix for Bugzilla ticket #5156 Signed-off-by: Jochen Friedrich Signed-off-by: Arnaldo Carvalho de Melo --- net/core/dev.c | 2 ++ net/llc/af_llc.c | 6 ++++++ 2 files changed, 8 insertions(+) diff --git a/net/core/dev.c b/net/core/dev.c index c01511e3d0c1..37c881070963 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -574,6 +574,8 @@ struct net_device *dev_getbyhwaddr(unsigned short type, char *ha) return dev; } +EXPORT_SYMBOL(dev_getbyhwaddr); + struct net_device *dev_getfirstbyhwtype(unsigned short type) { struct net_device *dev; diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c index a75b8f2aab19..0607cd3fd12c 100644 --- a/net/llc/af_llc.c +++ b/net/llc/af_llc.c @@ -296,6 +296,12 @@ static int llc_ui_bind(struct socket *sock, struct sockaddr *uaddr, int addrlen) rc = -EAFNOSUPPORT; if (unlikely(addr->sllc_family != AF_LLC)) goto out; + rc = -ENODEV; + rtnl_lock(); + llc->dev = dev_getbyhwaddr(addr->sllc_arphrd, addr->sllc_mac); + rtnl_unlock(); + if (!llc->dev) + goto out; if (!addr->sllc_sap) { rc = -EUSERS; addr->sllc_sap = llc_ui_autoport(); From 5085b4a5492f4f8bd32d0cc5b1cad4bf522c2e1a Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Thu, 22 Sep 2005 00:45:41 -0700 Subject: [PATCH 030/352] [SPARC64]: Do not allocate OBP page tables using bootmem Just allocate them physically starting from the end of the kernel image. This incredibly simplifies our MM bootstrap in that we don't need any mappings in the linear PAGE_OFFSET area working in order to bootstrap ourselves and take over the trap table from the firmware. Many further simplifications are possible now, and this also sets the stage for CONFIG_DEBUG_PAGEALLOC support. Signed-off-by: David S. Miller --- arch/sparc64/mm/init.c | 145 ++++++++++++++++++++++++++++------------- 1 file changed, 99 insertions(+), 46 deletions(-) diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c index 11d2187990d4..598bfb3b0053 100644 --- a/arch/sparc64/mm/init.c +++ b/arch/sparc64/mm/init.c @@ -324,14 +324,59 @@ unsigned long kern_locked_tte_data; unsigned long prom_pmd_phys __read_mostly; unsigned int swapper_pgd_zero __read_mostly; -void __init early_pgtable_allocfail(char *type) +/* Allocate power-of-2 aligned chunks from the end of the + * kernel image. Return physical address. + */ +static inline unsigned long early_alloc_phys(unsigned long size) { - prom_printf("inherit_prom_mappings: Cannot alloc kernel %s.\n", type); - prom_halt(); + unsigned long base; + + BUILD_BUG_ON(size & (size - 1)); + + kern_size = (kern_size + (size - 1)) & ~(size - 1); + base = kern_base + kern_size; + kern_size += size; + + return base; +} + +static inline unsigned long load_phys32(unsigned long pa) +{ + unsigned long val; + + __asm__ __volatile__("lduwa [%1] %2, %0" + : "=&r" (val) + : "r" (pa), "i" (ASI_PHYS_USE_EC)); + + return val; +} + +static inline unsigned long load_phys64(unsigned long pa) +{ + unsigned long val; + + __asm__ __volatile__("ldxa [%1] %2, %0" + : "=&r" (val) + : "r" (pa), "i" (ASI_PHYS_USE_EC)); + + return val; +} + +static inline void store_phys32(unsigned long pa, unsigned long val) +{ + __asm__ __volatile__("stwa %0, [%1] %2" + : /* no outputs */ + : "r" (val), "r" (pa), "i" (ASI_PHYS_USE_EC)); +} + +static inline void store_phys64(unsigned long pa, unsigned long val) +{ + __asm__ __volatile__("stxa %0, [%1] %2" + : /* no outputs */ + : "r" (val), "r" (pa), "i" (ASI_PHYS_USE_EC)); } #define BASE_PAGE_SIZE 8192 -static pmd_t *prompmd; /* * Translate PROM's mapping we capture at boot time into physical address. @@ -339,33 +384,34 @@ static pmd_t *prompmd; */ unsigned long prom_virt_to_phys(unsigned long promva, int *error) { - pmd_t *pmdp = prompmd + ((promva >> 23) & 0x7ff); - pte_t *ptep; + unsigned long pmd_phys = (prom_pmd_phys + + ((promva >> 23) & 0x7ff) * sizeof(pmd_t)); + unsigned long pte_phys; + pmd_t pmd_ent; + pte_t pte_ent; unsigned long base; - if (pmd_none(*pmdp)) { + pmd_val(pmd_ent) = load_phys32(pmd_phys); + if (pmd_none(pmd_ent)) { if (error) *error = 1; - return(0); + return 0; } - ptep = (pte_t *)__pmd_page(*pmdp) + ((promva >> 13) & 0x3ff); - if (!pte_present(*ptep)) { + + pte_phys = (unsigned long)pmd_val(pmd_ent) << 11UL; + pte_phys += ((promva >> 13) & 0x3ff) * sizeof(pte_t); + pte_val(pte_ent) = load_phys64(pte_phys); + if (!pte_present(pte_ent)) { if (error) *error = 1; - return(0); + return 0; } if (error) { *error = 0; - return(pte_val(*ptep)); + return pte_val(pte_ent); } - base = pte_val(*ptep) & _PAGE_PADDR; - return(base + (promva & (BASE_PAGE_SIZE - 1))); -} - -static inline int in_obp_range(unsigned long vaddr) -{ - return (vaddr >= LOW_OBP_ADDRESS && - vaddr < HI_OBP_ADDRESS); + base = pte_val(pte_ent) & _PAGE_PADDR; + return (base + (promva & (BASE_PAGE_SIZE - 1))); } /* The obp translations are saved based on 8k pagesize, since obp can @@ -378,22 +424,25 @@ static void build_obp_range(unsigned long start, unsigned long end, unsigned lon unsigned long vaddr; for (vaddr = start; vaddr < end; vaddr += BASE_PAGE_SIZE) { - unsigned long val; - pmd_t *pmdp; - pte_t *ptep; + unsigned long val, pte_phys, pmd_phys; + pmd_t pmd_ent; + int i; - pmdp = prompmd + ((vaddr >> 23) & 0x7ff); - if (pmd_none(*pmdp)) { - ptep = __alloc_bootmem(BASE_PAGE_SIZE, - BASE_PAGE_SIZE, - bootmap_base); - if (ptep == NULL) - early_pgtable_allocfail("pte"); - memset(ptep, 0, BASE_PAGE_SIZE); - pmd_set(pmdp, ptep); + pmd_phys = (prom_pmd_phys + + (((vaddr >> 23) & 0x7ff) * sizeof(pmd_t))); + pmd_val(pmd_ent) = load_phys32(pmd_phys); + if (pmd_none(pmd_ent)) { + pte_phys = early_alloc_phys(BASE_PAGE_SIZE); + + for (i = 0; i < BASE_PAGE_SIZE / sizeof(pte_t); i++) + store_phys64(pte_phys+i*sizeof(pte_t),0); + + pmd_val(pmd_ent) = pte_phys >> 11UL; + store_phys32(pmd_phys, pmd_val(pmd_ent)); } - ptep = (pte_t *)__pmd_page(*pmdp) + - ((vaddr >> 13) & 0x3ff); + + pte_phys = (unsigned long)pmd_val(pmd_ent) << 11UL; + pte_phys += (((vaddr >> 13) & 0x3ff) * sizeof(pte_t)); val = data; @@ -401,22 +450,27 @@ static void build_obp_range(unsigned long start, unsigned long end, unsigned lon if (tlb_type == spitfire) val &= ~0x0003fe0000000000UL; - set_pte_at(&init_mm, vaddr, - ptep, __pte(val | _PAGE_MODIFIED)); + store_phys64(pte_phys, val | _PAGE_MODIFIED); + data += BASE_PAGE_SIZE; } } +static inline int in_obp_range(unsigned long vaddr) +{ + return (vaddr >= LOW_OBP_ADDRESS && + vaddr < HI_OBP_ADDRESS); +} + #define OBP_PMD_SIZE 2048 static void build_obp_pgtable(int prom_trans_ents) { - int i; + unsigned long i; + + prom_pmd_phys = early_alloc_phys(OBP_PMD_SIZE); + for (i = 0; i < OBP_PMD_SIZE; i += 4) + store_phys32(prom_pmd_phys + i, 0); - prompmd = __alloc_bootmem(OBP_PMD_SIZE, OBP_PMD_SIZE, - bootmap_base); - if (prompmd == NULL) - early_pgtable_allocfail("pmd"); - memset(prompmd, 0, OBP_PMD_SIZE); for (i = 0; i < prom_trans_ents; i++) { unsigned long start, end; @@ -430,7 +484,6 @@ static void build_obp_pgtable(int prom_trans_ents) build_obp_range(start, end, prom_trans[i].data); } - prom_pmd_phys = __pa(prompmd); } /* Read OBP translations property into 'prom_trans[]'. @@ -1517,13 +1570,13 @@ void __init paging_init(void) swapper_pgd_zero = pgd_val(init_mm.pgd[0]); + /* Inherit non-locked OBP mappings. */ + inherit_prom_mappings(); + /* Setup bootmem... */ pages_avail = 0; last_valid_pfn = end_pfn = bootmem_init(&pages_avail); - /* Inherit non-locked OBP mappings. */ - inherit_prom_mappings(); - /* Ok, we can use our TLB miss and window trap handlers safely. * We need to do a quick peek here to see if we are on StarFire * or not, so setup_tba can setup the IRQ globals correctly (it From 5564af21ae7900889c5151e5b16bd42cdda11a77 Mon Sep 17 00:00:00 2001 From: Jochen Friedrich Date: Thu, 22 Sep 2005 04:46:44 -0300 Subject: [PATCH 031/352] [LLC]: Fix for Bugzilla ticket #5157 Signed-off-by: Jochen Friedrich Signed-off-by: Arnaldo Carvalho de Melo --- net/llc/af_llc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c index 0607cd3fd12c..3361ae900e2b 100644 --- a/net/llc/af_llc.c +++ b/net/llc/af_llc.c @@ -418,9 +418,9 @@ static int llc_ui_connect(struct socket *sock, struct sockaddr *uaddr, rc = llc_ui_autobind(sock, addr); if (rc) goto out; - llc->daddr.lsap = addr->sllc_sap; - memcpy(llc->daddr.mac, addr->sllc_mac, IFHWADDRLEN); } + llc->daddr.lsap = addr->sllc_sap; + memcpy(llc->daddr.mac, addr->sllc_mac, IFHWADDRLEN); sock->state = SS_CONNECTING; sk->sk_state = TCP_SYN_SENT; llc->link = llc_ui_next_link_no(llc->sap->laddr.lsap); From 096f0eb1dff326ddebfedeb128fb48d5b7ca75e1 Mon Sep 17 00:00:00 2001 From: Jochen Friedrich Date: Thu, 22 Sep 2005 04:48:46 -0300 Subject: [PATCH 032/352] [LLC]: Fix llc_fixup_skb() bug llc_fixup_skb() had a bug dropping 3 bytes packets (like UA frames). Token ring doesn't pad these frames. Signed-off-by: Jochen Friedrich Signed-off-by: Arnaldo Carvalho de Melo --- net/llc/llc_input.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/net/llc/llc_input.c b/net/llc/llc_input.c index 789eec426451..8f3addf0724c 100644 --- a/net/llc/llc_input.c +++ b/net/llc/llc_input.c @@ -99,15 +99,19 @@ out: static inline int llc_fixup_skb(struct sk_buff *skb) { u8 llc_len = 2; - struct llc_pdu_sn *pdu; + struct llc_pdu_un *pdu; if (unlikely(!pskb_may_pull(skb, sizeof(*pdu)))) return 0; - pdu = (struct llc_pdu_sn *)skb->data; + pdu = (struct llc_pdu_un *)skb->data; if ((pdu->ctrl_1 & LLC_PDU_TYPE_MASK) == LLC_PDU_TYPE_U) llc_len = 1; llc_len += 2; + + if (unlikely(!pskb_may_pull(skb, llc_len))) + return 0; + skb->h.raw += llc_len; skb_pull(skb, llc_len); if (skb->protocol == htons(ETH_P_802_2)) { From 0519d8fbabc4eb215a8263f29143ccd86c328157 Mon Sep 17 00:00:00 2001 From: Jochen Friedrich Date: Thu, 22 Sep 2005 04:51:56 -0300 Subject: [PATCH 033/352] [TR]: Set correct frame type for SNAP packets Signed-off-by: Jochen Friedrich Signed-off-by: Arnaldo Carvalho de Melo --- net/802/tr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/802/tr.c b/net/802/tr.c index 1bb7dc1b85cd..1eaa3d19d8bf 100644 --- a/net/802/tr.c +++ b/net/802/tr.c @@ -238,7 +238,7 @@ unsigned short tr_type_trans(struct sk_buff *skb, struct net_device *dev) return trllc->ethertype; } - return ntohs(ETH_P_802_2); + return ntohs(ETH_P_TR_802_2); } /* From 2bdb3cb265830aee823444d115a8a84eca2b934e Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Thu, 22 Sep 2005 01:08:57 -0700 Subject: [PATCH 034/352] [SPARC64]: Remove unnecessary paging_init() cruft. Because we don't access the PAGE_OFFSET linear mappings any longer before we take over the trap table from the firmware, we don't need to load dummy mappings there into the TLB and we don't need the bootmap_base hack any longer either. While we are here, check for a larger than 8MB kernel and halt the boot with an error message. We know that doesn't work, so instead of failing mysteriously we should let the user know exactly what's wrong. Signed-off-by: David S. Miller --- arch/sparc64/mm/init.c | 114 ++++++----------------------------------- 1 file changed, 15 insertions(+), 99 deletions(-) diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c index 598bfb3b0053..92d095802958 100644 --- a/arch/sparc64/mm/init.c +++ b/arch/sparc64/mm/init.c @@ -43,7 +43,7 @@ extern void device_scan(void); struct sparc_phys_banks sp_banks[SPARC_PHYS_BANKS]; -unsigned long *sparc64_valid_addr_bitmap; +unsigned long *sparc64_valid_addr_bitmap __read_mostly; /* Ugly, but necessary... -DaveM */ unsigned long phys_base __read_mostly; @@ -51,15 +51,6 @@ unsigned long kern_base __read_mostly; unsigned long kern_size __read_mostly; unsigned long pfn_base __read_mostly; -/* This is even uglier. We have a problem where the kernel may not be - * located at phys_base. However, initial __alloc_bootmem() calls need to - * be adjusted to be within the 4-8Megs that the kernel is mapped to, else - * those page mappings wont work. Things are ok after inherit_prom_mappings - * is called though. Dave says he'll clean this up some other time. - * -- BenC - */ -static unsigned long bootmap_base; - /* get_new_mmu_context() uses "cache + 1". */ DEFINE_SPINLOCK(ctx_alloc_lock); unsigned long tlb_context_cache = CTX_FIRST_VERSION - 1; @@ -1415,8 +1406,6 @@ unsigned long __init bootmem_init(unsigned long *pages_avail) #endif bootmap_size = init_bootmem_node(NODE_DATA(0), bootmap_pfn, pfn_base, end_pfn); - bootmap_base = bootmap_pfn << PAGE_SHIFT; - /* Now register the available physical memory with the * allocator. */ @@ -1475,89 +1464,22 @@ static unsigned long last_valid_pfn; void __init paging_init(void) { extern pmd_t swapper_pmd_dir[1024]; - unsigned long alias_base = kern_base + PAGE_OFFSET; - unsigned long second_alias_page = 0; - unsigned long pt, flags, end_pfn, pages_avail; - unsigned long shift = alias_base - ((unsigned long)KERNBASE); + unsigned long end_pfn, pages_avail, shift; unsigned long real_end; set_bit(0, mmu_context_bmap); + shift = kern_base + PAGE_OFFSET - ((unsigned long)KERNBASE); + real_end = (unsigned long)_end; if ((real_end > ((unsigned long)KERNBASE + 0x400000))) bigkernel = 1; -#ifdef CONFIG_BLK_DEV_INITRD - if (sparc_ramdisk_image || sparc_ramdisk_image64) - real_end = (PAGE_ALIGN(real_end) + PAGE_ALIGN(sparc_ramdisk_size)); -#endif - - /* We assume physical memory starts at some 4mb multiple, - * if this were not true we wouldn't boot up to this point - * anyways. - */ - pt = kern_base | _PAGE_VALID | _PAGE_SZ4MB; - pt |= _PAGE_CP | _PAGE_CV | _PAGE_P | _PAGE_L | _PAGE_W; - local_irq_save(flags); - if (tlb_type == spitfire) { - __asm__ __volatile__( - " stxa %1, [%0] %3\n" - " stxa %2, [%5] %4\n" - " membar #Sync\n" - " flush %%g6\n" - " nop\n" - " nop\n" - " nop\n" - : /* No outputs */ - : "r" (TLB_TAG_ACCESS), "r" (alias_base), "r" (pt), - "i" (ASI_DMMU), "i" (ASI_DTLB_DATA_ACCESS), "r" (61 << 3) - : "memory"); - if (real_end >= KERNBASE + 0x340000) { - second_alias_page = alias_base + 0x400000; - __asm__ __volatile__( - " stxa %1, [%0] %3\n" - " stxa %2, [%5] %4\n" - " membar #Sync\n" - " flush %%g6\n" - " nop\n" - " nop\n" - " nop\n" - : /* No outputs */ - : "r" (TLB_TAG_ACCESS), "r" (second_alias_page), "r" (pt + 0x400000), - "i" (ASI_DMMU), "i" (ASI_DTLB_DATA_ACCESS), "r" (60 << 3) - : "memory"); - } - } else if (tlb_type == cheetah || tlb_type == cheetah_plus) { - __asm__ __volatile__( - " stxa %1, [%0] %3\n" - " stxa %2, [%5] %4\n" - " membar #Sync\n" - " flush %%g6\n" - " nop\n" - " nop\n" - " nop\n" - : /* No outputs */ - : "r" (TLB_TAG_ACCESS), "r" (alias_base), "r" (pt), - "i" (ASI_DMMU), "i" (ASI_DTLB_DATA_ACCESS), "r" ((0<<16) | (13<<3)) - : "memory"); - if (real_end >= KERNBASE + 0x340000) { - second_alias_page = alias_base + 0x400000; - __asm__ __volatile__( - " stxa %1, [%0] %3\n" - " stxa %2, [%5] %4\n" - " membar #Sync\n" - " flush %%g6\n" - " nop\n" - " nop\n" - " nop\n" - : /* No outputs */ - : "r" (TLB_TAG_ACCESS), "r" (second_alias_page), "r" (pt + 0x400000), - "i" (ASI_DMMU), "i" (ASI_DTLB_DATA_ACCESS), "r" ((0<<16) | (12<<3)) - : "memory"); - } + if ((real_end > ((unsigned long)KERNBASE + 0x800000))) { + prom_printf("paging_init: Kernel > 8MB, too large.\n"); + prom_halt(); } - local_irq_restore(flags); - - /* Now set kernel pgd to upper alias so physical page computations + + /* Set kernel pgd to upper alias so physical page computations * work. */ init_mm.pgd += ((shift) / (sizeof(pgd_t))); @@ -1568,15 +1490,11 @@ void __init paging_init(void) pud_set(pud_offset(&swapper_pg_dir[0], 0), swapper_pmd_dir + (shift / sizeof(pgd_t))); - swapper_pgd_zero = pgd_val(init_mm.pgd[0]); + swapper_pgd_zero = pgd_val(swapper_pg_dir[0]); /* Inherit non-locked OBP mappings. */ inherit_prom_mappings(); - /* Setup bootmem... */ - pages_avail = 0; - last_valid_pfn = end_pfn = bootmem_init(&pages_avail); - /* Ok, we can use our TLB miss and window trap handlers safely. * We need to do a quick peek here to see if we are on StarFire * or not, so setup_tba can setup the IRQ globals correctly (it @@ -1589,13 +1507,12 @@ void __init paging_init(void) inherit_locked_prom_mappings(1); - /* We only created DTLB mapping of this stuff. */ - spitfire_flush_dtlb_nucleus_page(alias_base); - if (second_alias_page) - spitfire_flush_dtlb_nucleus_page(second_alias_page); - __flush_tlb_all(); + /* Setup bootmem... */ + pages_avail = 0; + last_valid_pfn = end_pfn = bootmem_init(&pages_avail); + { unsigned long zones_size[MAX_NR_ZONES]; unsigned long zholes_size[MAX_NR_ZONES]; @@ -1757,8 +1674,7 @@ void __init mem_init(void) i = last_valid_pfn >> ((22 - PAGE_SHIFT) + 6); i += 1; - sparc64_valid_addr_bitmap = (unsigned long *) - __alloc_bootmem(i << 3, SMP_CACHE_BYTES, bootmap_base); + sparc64_valid_addr_bitmap = (unsigned long *) alloc_bootmem(i << 3); if (sparc64_valid_addr_bitmap == NULL) { prom_printf("mem_init: Cannot alloc valid_addr_bitmap.\n"); prom_halt(); From 2928c19e1086e2f1e90d05931437ab6f1e4cfdc8 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Thu, 22 Sep 2005 05:14:33 -0300 Subject: [PATCH 035/352] [LLC]: Fix sparse warnings Signed-off-by: Arnaldo Carvalho de Melo --- include/net/llc.h | 13 +++++++++++-- include/net/llc_conn.h | 3 ++- net/llc/af_llc.c | 5 +---- net/llc/llc_c_ac.c | 2 +- net/llc/llc_conn.c | 3 ++- net/llc/llc_core.c | 2 +- net/llc/sysctl_net_llc.c | 7 +------ 7 files changed, 19 insertions(+), 16 deletions(-) diff --git a/include/net/llc.h b/include/net/llc.h index 93e5b443a9a7..1adb2ef3f6f7 100644 --- a/include/net/llc.h +++ b/include/net/llc.h @@ -89,10 +89,10 @@ static inline void llc_sap_hold(struct llc_sap *sap) atomic_inc(&sap->refcnt); } +extern void llc_sap_close(struct llc_sap *sap); + static inline void llc_sap_put(struct llc_sap *sap) { - extern void llc_sap_close(struct llc_sap *sap); - if (atomic_dec_and_test(&sap->refcnt)) llc_sap_close(sap); } @@ -102,6 +102,9 @@ extern struct llc_sap *llc_sap_find(unsigned char sap_value); extern int llc_build_and_send_ui_pkt(struct llc_sap *sap, struct sk_buff *skb, unsigned char *dmac, unsigned char dsap); +extern void llc_sap_handler(struct llc_sap *sap, struct sk_buff *skb); +extern void llc_conn_handler(struct llc_sap *sap, struct sk_buff *skb); + extern int llc_station_init(void); extern void llc_station_exit(void); @@ -115,6 +118,12 @@ extern void llc_proc_exit(void); #ifdef CONFIG_SYSCTL extern int llc_sysctl_init(void); extern void llc_sysctl_exit(void); + +extern int sysctl_llc2_ack_timeout; +extern int sysctl_llc2_busy_timeout; +extern int sysctl_llc2_p_timeout; +extern int sysctl_llc2_rej_timeout; +extern int sysctl_llc_station_ack_timeout; #else #define llc_sysctl_init() (0) #define llc_sysctl_exit() do { } while(0) diff --git a/include/net/llc_conn.h b/include/net/llc_conn.h index b2889218c76a..e44f494bbef1 100644 --- a/include/net/llc_conn.h +++ b/include/net/llc_conn.h @@ -92,7 +92,8 @@ static __inline__ char llc_backlog_type(struct sk_buff *skb) return skb->cb[sizeof(skb->cb) - 1]; } -extern struct sock *llc_sk_alloc(int family, int priority, struct proto *prot); +extern struct sock *llc_sk_alloc(int family, unsigned int __nocast priority, + struct proto *prot); extern void llc_sk_free(struct sock *sk); extern void llc_sk_reset(struct sock *sk); diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c index 3361ae900e2b..7aa51eb79b13 100644 --- a/net/llc/af_llc.c +++ b/net/llc/af_llc.c @@ -555,7 +555,7 @@ static int llc_ui_wait_for_busy_core(struct sock *sk, long timeout) return rc; } -int llc_wait_data(struct sock *sk, long timeo) +static int llc_wait_data(struct sock *sk, long timeo) { int rc; @@ -1003,9 +1003,6 @@ static struct proto_ops llc_ui_ops = { .sendpage = sock_no_sendpage, }; -extern void llc_sap_handler(struct llc_sap *sap, struct sk_buff *skb); -extern void llc_conn_handler(struct llc_sap *sap, struct sk_buff *skb); - static char llc_proc_err_msg[] __initdata = KERN_CRIT "LLC: Unable to register the proc_fs entries\n"; static char llc_sysctl_err_msg[] __initdata = diff --git a/net/llc/llc_c_ac.c b/net/llc/llc_c_ac.c index 05236c2cbb9e..8f7b46d20638 100644 --- a/net/llc/llc_c_ac.c +++ b/net/llc/llc_c_ac.c @@ -1321,7 +1321,7 @@ int llc_conn_ac_set_vs_nr(struct sock *sk, struct sk_buff *skb) return 0; } -int llc_conn_ac_inc_vs_by_1(struct sock *sk, struct sk_buff *skb) +static int llc_conn_ac_inc_vs_by_1(struct sock *sk, struct sk_buff *skb) { llc_sk(sk)->vS = (llc_sk(sk)->vS + 1) % 128; return 0; diff --git a/net/llc/llc_conn.c b/net/llc/llc_conn.c index ab9e6d7e2875..76f94e0d840d 100644 --- a/net/llc/llc_conn.c +++ b/net/llc/llc_conn.c @@ -819,7 +819,8 @@ static void llc_sk_init(struct sock* sk) * Allocates a LLC sock and initializes it. Returns the new LLC sock * or %NULL if there's no memory available for one */ -struct sock *llc_sk_alloc(int family, int priority, struct proto *prot) +struct sock *llc_sk_alloc(int family, unsigned int __nocast priority, + struct proto *prot) { struct sock *sk = sk_alloc(family, priority, prot, 1); diff --git a/net/llc/llc_core.c b/net/llc/llc_core.c index 9ccff1266b26..ab0fcd32fd84 100644 --- a/net/llc/llc_core.c +++ b/net/llc/llc_core.c @@ -69,7 +69,7 @@ static void llc_del_sap(struct llc_sap *sap) write_unlock_bh(&llc_sap_list_lock); } -struct llc_sap *__llc_sap_find(unsigned char sap_value) +static struct llc_sap *__llc_sap_find(unsigned char sap_value) { struct llc_sap* sap; diff --git a/net/llc/sysctl_net_llc.c b/net/llc/sysctl_net_llc.c index 4d99d2f27a21..d1eaddb13633 100644 --- a/net/llc/sysctl_net_llc.c +++ b/net/llc/sysctl_net_llc.c @@ -8,17 +8,12 @@ #include #include #include +#include #ifndef CONFIG_SYSCTL #error This file should not be compiled without CONFIG_SYSCTL defined #endif -extern int sysctl_llc2_ack_timeout; -extern int sysctl_llc2_busy_timeout; -extern int sysctl_llc2_p_timeout; -extern int sysctl_llc2_rej_timeout; -extern int sysctl_llc_station_ack_timeout; - static struct ctl_table llc2_timeout_table[] = { { .ctl_name = NET_LLC2_ACK_TIMEOUT, From d389424e00f9097cd24b3df4ca0ab7221f140eeb Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Thu, 22 Sep 2005 07:57:21 -0300 Subject: [PATCH 036/352] [LLC]: Fix the accept path Borrowing the structure of TCP/IP for this. On the receive of new connections I was bh_lock_socking the _new_ sock, not the listening one, duh, now it survives the ssh connections storm I've been using to test this specific bug. Also fixes send side skb sock accounting. Signed-off-by: Arnaldo Carvalho de Melo --- include/net/llc_sap.h | 3 +- net/llc/llc_c_ac.c | 64 ++++++++----------- net/llc/llc_conn.c | 144 ++++++++++++++++++++++++++++-------------- net/llc/llc_if.c | 2 + net/llc/llc_s_ac.c | 4 +- net/llc/llc_sap.c | 4 +- net/llc/llc_station.c | 6 +- 7 files changed, 133 insertions(+), 94 deletions(-) diff --git a/include/net/llc_sap.h b/include/net/llc_sap.h index 9dcfcf4a4abb..2c56dbece729 100644 --- a/include/net/llc_sap.h +++ b/include/net/llc_sap.h @@ -19,7 +19,8 @@ struct sock; extern void llc_sap_rtn_pdu(struct llc_sap *sap, struct sk_buff *skb); extern void llc_save_primitive(struct sock *sk, struct sk_buff* skb, unsigned char prim); -extern struct sk_buff *llc_alloc_frame(struct net_device *dev); +extern struct sk_buff *llc_alloc_frame(struct sock *sk, + struct net_device *dev); extern void llc_build_and_send_test_pkt(struct llc_sap *sap, struct sk_buff *skb, diff --git a/net/llc/llc_c_ac.c b/net/llc/llc_c_ac.c index 8f7b46d20638..b0bcfb1f12dd 100644 --- a/net/llc/llc_c_ac.c +++ b/net/llc/llc_c_ac.c @@ -60,24 +60,10 @@ int llc_conn_ac_clear_remote_busy(struct sock *sk, struct sk_buff *skb) int llc_conn_ac_conn_ind(struct sock *sk, struct sk_buff *skb) { - int rc = -ENOTCONN; - u8 dsap; - struct llc_sap *sap; + struct llc_conn_state_ev *ev = llc_conn_ev(skb); - llc_pdu_decode_dsap(skb, &dsap); - sap = llc_sap_find(dsap); - if (sap) { - struct llc_conn_state_ev *ev = llc_conn_ev(skb); - struct llc_sock *llc = llc_sk(sk); - - llc_pdu_decode_sa(skb, llc->daddr.mac); - llc_pdu_decode_da(skb, llc->laddr.mac); - llc->dev = skb->dev; - ev->ind_prim = LLC_CONN_PRIM; - rc = 0; - llc_sap_put(sap); - } - return rc; + ev->ind_prim = LLC_CONN_PRIM; + return 0; } int llc_conn_ac_conn_confirm(struct sock *sk, struct sk_buff *skb) @@ -213,7 +199,7 @@ int llc_conn_ac_send_disc_cmd_p_set_x(struct sock *sk, struct sk_buff *skb) { int rc = -ENOBUFS; struct llc_sock *llc = llc_sk(sk); - struct sk_buff *nskb = llc_alloc_frame(llc->dev); + struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev); if (nskb) { struct llc_sap *sap = llc->sap; @@ -238,7 +224,7 @@ int llc_conn_ac_send_dm_rsp_f_set_p(struct sock *sk, struct sk_buff *skb) { int rc = -ENOBUFS; struct llc_sock *llc = llc_sk(sk); - struct sk_buff *nskb = llc_alloc_frame(llc->dev); + struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev); if (nskb) { struct llc_sap *sap = llc->sap; @@ -264,7 +250,7 @@ int llc_conn_ac_send_dm_rsp_f_set_1(struct sock *sk, struct sk_buff *skb) { int rc = -ENOBUFS; struct llc_sock *llc = llc_sk(sk); - struct sk_buff *nskb = llc_alloc_frame(llc->dev); + struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev); if (nskb) { struct llc_sap *sap = llc->sap; @@ -297,7 +283,7 @@ int llc_conn_ac_send_frmr_rsp_f_set_x(struct sock *sk, struct sk_buff *skb) llc_pdu_decode_pf_bit(skb, &f_bit); else f_bit = 0; - nskb = llc_alloc_frame(llc->dev); + nskb = llc_alloc_frame(sk, llc->dev); if (nskb) { struct llc_sap *sap = llc->sap; @@ -321,7 +307,7 @@ int llc_conn_ac_resend_frmr_rsp_f_set_0(struct sock *sk, struct sk_buff *skb) { int rc = -ENOBUFS; struct llc_sock *llc = llc_sk(sk); - struct sk_buff *nskb = llc_alloc_frame(llc->dev); + struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev); if (nskb) { struct llc_sap *sap = llc->sap; @@ -351,7 +337,7 @@ int llc_conn_ac_resend_frmr_rsp_f_set_p(struct sock *sk, struct sk_buff *skb) struct llc_sock *llc = llc_sk(sk); llc_pdu_decode_pf_bit(skb, &f_bit); - nskb = llc_alloc_frame(llc->dev); + nskb = llc_alloc_frame(sk, llc->dev); if (nskb) { struct llc_sap *sap = llc->sap; struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); @@ -439,7 +425,7 @@ int llc_conn_ac_resend_i_xxx_x_set_0_or_send_rr(struct sock *sk, struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb); int rc = -ENOBUFS; struct llc_sock *llc = llc_sk(sk); - struct sk_buff *nskb = llc_alloc_frame(llc->dev); + struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev); if (nskb) { struct llc_sap *sap = llc->sap; @@ -474,7 +460,7 @@ int llc_conn_ac_send_rej_cmd_p_set_1(struct sock *sk, struct sk_buff *skb) { int rc = -ENOBUFS; struct llc_sock *llc = llc_sk(sk); - struct sk_buff *nskb = llc_alloc_frame(llc->dev); + struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev); if (nskb) { struct llc_sap *sap = llc->sap; @@ -498,7 +484,7 @@ int llc_conn_ac_send_rej_rsp_f_set_1(struct sock *sk, struct sk_buff *skb) { int rc = -ENOBUFS; struct llc_sock *llc = llc_sk(sk); - struct sk_buff *nskb = llc_alloc_frame(llc->dev); + struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev); if (nskb) { struct llc_sap *sap = llc->sap; @@ -522,7 +508,7 @@ int llc_conn_ac_send_rej_xxx_x_set_0(struct sock *sk, struct sk_buff *skb) { int rc = -ENOBUFS; struct llc_sock *llc = llc_sk(sk); - struct sk_buff *nskb = llc_alloc_frame(llc->dev); + struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev); if (nskb) { struct llc_sap *sap = llc->sap; @@ -546,7 +532,7 @@ int llc_conn_ac_send_rnr_cmd_p_set_1(struct sock *sk, struct sk_buff *skb) { int rc = -ENOBUFS; struct llc_sock *llc = llc_sk(sk); - struct sk_buff *nskb = llc_alloc_frame(llc->dev); + struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev); if (nskb) { struct llc_sap *sap = llc->sap; @@ -570,7 +556,7 @@ int llc_conn_ac_send_rnr_rsp_f_set_1(struct sock *sk, struct sk_buff *skb) { int rc = -ENOBUFS; struct llc_sock *llc = llc_sk(sk); - struct sk_buff *nskb = llc_alloc_frame(llc->dev); + struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev); if (nskb) { struct llc_sap *sap = llc->sap; @@ -594,7 +580,7 @@ int llc_conn_ac_send_rnr_xxx_x_set_0(struct sock *sk, struct sk_buff *skb) { int rc = -ENOBUFS; struct llc_sock *llc = llc_sk(sk); - struct sk_buff *nskb = llc_alloc_frame(llc->dev); + struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev); if (nskb) { struct llc_sap *sap = llc->sap; @@ -630,7 +616,7 @@ int llc_conn_ac_opt_send_rnr_xxx_x_set_0(struct sock *sk, struct sk_buff *skb) { int rc = -ENOBUFS; struct llc_sock *llc = llc_sk(sk); - struct sk_buff *nskb = llc_alloc_frame(llc->dev); + struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev); if (nskb) { struct llc_sap *sap = llc->sap; @@ -654,7 +640,7 @@ int llc_conn_ac_send_rr_cmd_p_set_1(struct sock *sk, struct sk_buff *skb) { int rc = -ENOBUFS; struct llc_sock *llc = llc_sk(sk); - struct sk_buff *nskb = llc_alloc_frame(llc->dev); + struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev); if (nskb) { struct llc_sap *sap = llc->sap; @@ -678,7 +664,7 @@ int llc_conn_ac_send_rr_rsp_f_set_1(struct sock *sk, struct sk_buff *skb) { int rc = -ENOBUFS; struct llc_sock *llc = llc_sk(sk); - struct sk_buff *nskb = llc_alloc_frame(llc->dev); + struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev); if (nskb) { struct llc_sap *sap = llc->sap; @@ -703,7 +689,7 @@ int llc_conn_ac_send_ack_rsp_f_set_1(struct sock *sk, struct sk_buff *skb) { int rc = -ENOBUFS; struct llc_sock *llc = llc_sk(sk); - struct sk_buff *nskb = llc_alloc_frame(llc->dev); + struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev); if (nskb) { struct llc_sap *sap = llc->sap; @@ -727,7 +713,7 @@ int llc_conn_ac_send_rr_xxx_x_set_0(struct sock *sk, struct sk_buff *skb) { int rc = -ENOBUFS; struct llc_sock *llc = llc_sk(sk); - struct sk_buff *nskb = llc_alloc_frame(llc->dev); + struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev); if (nskb) { struct llc_sap *sap = llc->sap; @@ -751,7 +737,7 @@ int llc_conn_ac_send_ack_xxx_x_set_0(struct sock *sk, struct sk_buff *skb) { int rc = -ENOBUFS; struct llc_sock *llc = llc_sk(sk); - struct sk_buff *nskb = llc_alloc_frame(llc->dev); + struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev); if (nskb) { struct llc_sap *sap = llc->sap; @@ -785,7 +771,7 @@ int llc_conn_ac_send_sabme_cmd_p_set_x(struct sock *sk, struct sk_buff *skb) { int rc = -ENOBUFS; struct llc_sock *llc = llc_sk(sk); - struct sk_buff *nskb = llc_alloc_frame(llc->dev); + struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev); if (nskb) { struct llc_sap *sap = llc->sap; @@ -814,7 +800,7 @@ int llc_conn_ac_send_ua_rsp_f_set_p(struct sock *sk, struct sk_buff *skb) u8 f_bit; int rc = -ENOBUFS; struct llc_sock *llc = llc_sk(sk); - struct sk_buff *nskb = llc_alloc_frame(llc->dev); + struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev); llc_pdu_decode_pf_bit(skb, &f_bit); if (nskb) { @@ -970,7 +956,7 @@ static int llc_conn_ac_send_rr_rsp_f_set_ackpf(struct sock *sk, { int rc = -ENOBUFS; struct llc_sock *llc = llc_sk(sk); - struct sk_buff *nskb = llc_alloc_frame(llc->dev); + struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev); if (nskb) { struct llc_sap *sap = llc->sap; diff --git a/net/llc/llc_conn.c b/net/llc/llc_conn.c index 76f94e0d840d..e10ce5adb104 100644 --- a/net/llc/llc_conn.c +++ b/net/llc/llc_conn.c @@ -58,7 +58,7 @@ int sysctl_llc2_busy_timeout = LLC2_BUSY_TIME * HZ; int llc_conn_state_process(struct sock *sk, struct sk_buff *skb) { int rc; - struct llc_sock *llc = llc_sk(sk); + struct llc_sock *llc = llc_sk(skb->sk); struct llc_conn_state_ev *ev = llc_conn_ev(skb); /* @@ -68,7 +68,10 @@ int llc_conn_state_process(struct sock *sk, struct sk_buff *skb) */ skb_get(skb); ev->ind_prim = ev->cfm_prim = 0; - rc = llc_conn_service(sk, skb); /* sending event to state machine */ + /* + * Send event to state machine + */ + rc = llc_conn_service(skb->sk, skb); if (unlikely(rc != 0)) { printk(KERN_ERR "%s: llc_conn_service failed\n", __FUNCTION__); goto out_kfree_skb; @@ -100,18 +103,14 @@ int llc_conn_state_process(struct sock *sk, struct sk_buff *skb) kfree_skb(skb); } break; - case LLC_CONN_PRIM: { - struct sock *parent = skb->sk; - - skb_orphan(skb); + case LLC_CONN_PRIM: /* - * Set the skb->sk to the new struct sock, so that at accept - * type the upper layer can get the newly created struct sock. + * Can't be sock_queue_rcv_skb, because we have to leave the + * skb->sk pointing to the newly created struct sock in + * llc_conn_handler. -acme */ - skb->sk = sk; - skb_queue_tail(&parent->sk_receive_queue, skb); - sk->sk_state_change(parent); - } + skb_queue_tail(&sk->sk_receive_queue, skb); + sk->sk_state_change(sk); break; case LLC_DISC_PRIM: sock_hold(sk); @@ -475,7 +474,7 @@ static int llc_exec_conn_trans_actions(struct sock *sk, } /** - * llc_lookup_established - Finds connection for the remote/local sap/mac + * __llc_lookup_established - Finds connection for the remote/local sap/mac * @sap: SAP * @daddr: address of remote LLC (MAC + SAP) * @laddr: address of local LLC (MAC + SAP) @@ -483,14 +482,16 @@ static int llc_exec_conn_trans_actions(struct sock *sk, * Search connection list of the SAP and finds connection using the remote * mac, remote sap, local mac, and local sap. Returns pointer for * connection found, %NULL otherwise. + * Caller has to make sure local_bh is disabled. */ -struct sock *llc_lookup_established(struct llc_sap *sap, struct llc_addr *daddr, - struct llc_addr *laddr) +static struct sock *__llc_lookup_established(struct llc_sap *sap, + struct llc_addr *daddr, + struct llc_addr *laddr) { struct sock *rc; struct hlist_node *node; - read_lock_bh(&sap->sk_list.lock); + read_lock(&sap->sk_list.lock); sk_for_each(rc, node, &sap->sk_list.list) { struct llc_sock *llc = llc_sk(rc); @@ -504,10 +505,22 @@ struct sock *llc_lookup_established(struct llc_sap *sap, struct llc_addr *daddr, } rc = NULL; found: - read_unlock_bh(&sap->sk_list.lock); + read_unlock(&sap->sk_list.lock); return rc; } +struct sock *llc_lookup_established(struct llc_sap *sap, + struct llc_addr *daddr, + struct llc_addr *laddr) +{ + struct sock *sk; + + local_bh_disable(); + sk = __llc_lookup_established(sap, daddr, laddr); + local_bh_enable(); + return sk; +} + /** * llc_lookup_listener - Finds listener for local MAC + SAP * @sap: SAP @@ -516,6 +529,7 @@ found: * Search connection list of the SAP and finds connection listening on * local mac, and local sap. Returns pointer for parent socket found, * %NULL otherwise. + * Caller has to make sure local_bh is disabled. */ static struct sock *llc_lookup_listener(struct llc_sap *sap, struct llc_addr *laddr) @@ -523,7 +537,7 @@ static struct sock *llc_lookup_listener(struct llc_sap *sap, struct sock *rc; struct hlist_node *node; - read_lock_bh(&sap->sk_list.lock); + read_lock(&sap->sk_list.lock); sk_for_each(rc, node, &sap->sk_list.list) { struct llc_sock *llc = llc_sk(rc); @@ -537,10 +551,19 @@ static struct sock *llc_lookup_listener(struct llc_sap *sap, } rc = NULL; found: - read_unlock_bh(&sap->sk_list.lock); + read_unlock(&sap->sk_list.lock); return rc; } +static struct sock *__llc_lookup(struct llc_sap *sap, + struct llc_addr *daddr, + struct llc_addr *laddr) +{ + struct sock *sk = __llc_lookup_established(sap, daddr, laddr); + + return sk ? : llc_lookup_listener(sap, laddr); +} + /** * llc_data_accept_state - designates if in this state data can be sent. * @state: state of connection. @@ -666,15 +689,34 @@ void llc_sap_remove_socket(struct llc_sap *sap, struct sock *sk) static int llc_conn_rcv(struct sock* sk, struct sk_buff *skb) { struct llc_conn_state_ev *ev = llc_conn_ev(skb); - struct llc_sock *llc = llc_sk(sk); - if (!llc->dev) - llc->dev = skb->dev; ev->type = LLC_CONN_EV_TYPE_PDU; ev->reason = 0; return llc_conn_state_process(sk, skb); } +static struct sock *llc_create_incoming_sock(struct sock *sk, + struct net_device *dev, + struct llc_addr *saddr, + struct llc_addr *daddr) +{ + struct sock *newsk = llc_sk_alloc(sk->sk_family, GFP_ATOMIC, + sk->sk_prot); + struct llc_sock *newllc, *llc = llc_sk(sk); + + if (!newsk) + goto out; + newllc = llc_sk(newsk); + memcpy(&newllc->laddr, daddr, sizeof(newllc->laddr)); + memcpy(&newllc->daddr, saddr, sizeof(newllc->daddr)); + newllc->dev = dev; + dev_hold(dev); + llc_sap_add_socket(llc->sap, newsk); + llc_sap_hold(llc->sap); +out: + return newsk; +} + void llc_conn_handler(struct llc_sap *sap, struct sk_buff *skb) { struct llc_addr saddr, daddr; @@ -685,34 +727,35 @@ void llc_conn_handler(struct llc_sap *sap, struct sk_buff *skb) llc_pdu_decode_da(skb, daddr.mac); llc_pdu_decode_dsap(skb, &daddr.lsap); - sk = llc_lookup_established(sap, &saddr, &daddr); - if (!sk) { - /* - * Didn't find an active connection; verify if there - * is a listening socket for this llc addr - */ - struct llc_sock *llc; - struct sock *parent = llc_lookup_listener(sap, &daddr); + sk = __llc_lookup(sap, &saddr, &daddr); + if (!sk) + goto drop; - if (!parent) { - dprintk("llc_lookup_listener failed!\n"); - goto drop; - } - - sk = llc_sk_alloc(parent->sk_family, GFP_ATOMIC, parent->sk_prot); - if (!sk) { - sock_put(parent); - goto drop; - } - llc = llc_sk(sk); - memcpy(&llc->laddr, &daddr, sizeof(llc->laddr)); - memcpy(&llc->daddr, &saddr, sizeof(llc->daddr)); - llc_sap_add_socket(sap, sk); - sock_hold(sk); - skb_set_owner_r(skb, parent); - sock_put(parent); - } bh_lock_sock(sk); + /* + * This has to be done here and not at the upper layer ->accept + * method because of the way the PROCOM state machine works: + * it needs to set several state variables (see, for instance, + * llc_adm_actions_2 in net/llc/llc_c_st.c) and send a packet to + * the originator of the new connection, and this state has to be + * in the newly created struct sock private area. -acme + */ + if (unlikely(sk->sk_state == TCP_LISTEN)) { + struct sock *newsk = llc_create_incoming_sock(sk, skb->dev, + &saddr, &daddr); + if (!newsk) + goto drop_unlock; + skb_set_owner_r(skb, newsk); + } else { + /* + * Can't be skb_set_owner_r, this will be done at the + * llc_conn_state_process function, later on, when we will use + * skb_queue_rcv_skb to send it to upper layers, this is + * another trick required to cope with how the PROCOM state + * machine works. -acme + */ + skb->sk = sk; + } if (!sock_owned_by_user(sk)) llc_conn_rcv(sk, skb); else { @@ -720,11 +763,16 @@ void llc_conn_handler(struct llc_sap *sap, struct sk_buff *skb) llc_set_backlog_type(skb, LLC_PACKET); sk_add_backlog(sk, skb); } +out: bh_unlock_sock(sk); sock_put(sk); return; drop: kfree_skb(skb); + return; +drop_unlock: + kfree_skb(skb); + goto out; } #undef LLC_REFCNT_DEBUG diff --git a/net/llc/llc_if.c b/net/llc/llc_if.c index 764dbd704051..ba90f7f0801a 100644 --- a/net/llc/llc_if.c +++ b/net/llc/llc_if.c @@ -107,6 +107,7 @@ int llc_establish_connection(struct sock *sk, u8 *lmac, u8 *dmac, u8 dsap) ev->type = LLC_CONN_EV_TYPE_PRIM; ev->prim = LLC_CONN_PRIM; ev->prim_type = LLC_PRIM_TYPE_REQ; + skb_set_owner_w(skb, sk); rc = llc_conn_state_process(sk, skb); } out_put: @@ -141,6 +142,7 @@ int llc_send_disc(struct sock *sk) skb = alloc_skb(0, GFP_ATOMIC); if (!skb) goto out; + skb_set_owner_w(skb, sk); sk->sk_state = TCP_CLOSING; ev = llc_conn_ev(skb); ev->type = LLC_CONN_EV_TYPE_PRIM; diff --git a/net/llc/llc_s_ac.c b/net/llc/llc_s_ac.c index 6acdebf03b2b..bb3580fb8cfe 100644 --- a/net/llc/llc_s_ac.c +++ b/net/llc/llc_s_ac.c @@ -103,7 +103,7 @@ int llc_sap_action_send_xid_r(struct llc_sap *sap, struct sk_buff *skb) llc_pdu_decode_sa(skb, mac_da); llc_pdu_decode_da(skb, mac_sa); llc_pdu_decode_ssap(skb, &dsap); - nskb = llc_alloc_frame(skb->dev); + nskb = llc_alloc_frame(NULL, skb->dev); if (!nskb) goto out; llc_pdu_header_init(nskb, LLC_PDU_TYPE_U, sap->laddr.lsap, dsap, @@ -148,7 +148,7 @@ int llc_sap_action_send_test_r(struct llc_sap *sap, struct sk_buff *skb) llc_pdu_decode_sa(skb, mac_da); llc_pdu_decode_da(skb, mac_sa); llc_pdu_decode_ssap(skb, &dsap); - nskb = llc_alloc_frame(skb->dev); + nskb = llc_alloc_frame(NULL, skb->dev); if (!nskb) goto out; llc_pdu_header_init(nskb, LLC_PDU_TYPE_U, sap->laddr.lsap, dsap, diff --git a/net/llc/llc_sap.c b/net/llc/llc_sap.c index 9f064b3a4335..e6d538937f93 100644 --- a/net/llc/llc_sap.c +++ b/net/llc/llc_sap.c @@ -31,7 +31,7 @@ * Allocates an sk_buff for frame and initializes sk_buff fields. * Returns allocated skb or %NULL when out of memory. */ -struct sk_buff *llc_alloc_frame(struct net_device *dev) +struct sk_buff *llc_alloc_frame(struct sock *sk, struct net_device *dev) { struct sk_buff *skb = alloc_skb(128, GFP_ATOMIC); @@ -41,6 +41,8 @@ struct sk_buff *llc_alloc_frame(struct net_device *dev) skb->protocol = htons(ETH_P_802_2); skb->dev = dev; skb->mac.raw = skb->head; + if (sk != NULL) + skb_set_owner_w(skb, sk); } return skb; } diff --git a/net/llc/llc_station.c b/net/llc/llc_station.c index ec4693fe312f..f37dbf8ef126 100644 --- a/net/llc/llc_station.c +++ b/net/llc/llc_station.c @@ -254,7 +254,7 @@ static int llc_station_ac_inc_xid_r_cnt_by_1(struct sk_buff *skb) static int llc_station_ac_send_null_dsap_xid_c(struct sk_buff *skb) { int rc = 1; - struct sk_buff *nskb = llc_alloc_frame(skb->dev); + struct sk_buff *nskb = llc_alloc_frame(NULL, skb->dev); if (!nskb) goto out; @@ -275,7 +275,7 @@ static int llc_station_ac_send_xid_r(struct sk_buff *skb) { u8 mac_da[ETH_ALEN], dsap; int rc = 1; - struct sk_buff* nskb = llc_alloc_frame(skb->dev); + struct sk_buff* nskb = llc_alloc_frame(NULL, skb->dev); if (!nskb) goto out; @@ -299,7 +299,7 @@ static int llc_station_ac_send_test_r(struct sk_buff *skb) { u8 mac_da[ETH_ALEN], dsap; int rc = 1; - struct sk_buff *nskb = llc_alloc_frame(skb->dev); + struct sk_buff *nskb = llc_alloc_frame(NULL, skb->dev); if (!nskb) goto out; From 8420e1b541fe92aee1d8d4d25d9e33eaca756a7b Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Thu, 22 Sep 2005 08:29:08 -0300 Subject: [PATCH 037/352] [LLC]: fix llc_ui_recvmsg, making it behave like tcp_recvmsg In fact it is an exact copy of the parts that makes sense to LLC :-) Signed-off-by: Arnaldo Carvalho de Melo --- include/net/llc_conn.h | 1 + net/llc/af_llc.c | 180 +++++++++++++++++++++++++++++++++-------- net/llc/llc_conn.c | 2 +- net/llc/llc_proc.c | 2 +- net/llc/llc_sap.c | 5 +- 5 files changed, 154 insertions(+), 36 deletions(-) diff --git a/include/net/llc_conn.h b/include/net/llc_conn.h index e44f494bbef1..54852ff6033b 100644 --- a/include/net/llc_conn.h +++ b/include/net/llc_conn.h @@ -38,6 +38,7 @@ struct llc_sock { struct llc_addr laddr; /* lsap/mac pair */ struct llc_addr daddr; /* dsap/mac pair */ struct net_device *dev; /* device to send to remote */ + u32 copied_seq; /* head of yet unread data */ u8 retry_count; /* number of retries */ u8 ack_must_be_send; u8 first_pdu_Ns; diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c index 7aa51eb79b13..59d02cbbeb9e 100644 --- a/net/llc/af_llc.c +++ b/net/llc/af_llc.c @@ -648,53 +648,167 @@ out: * llc_ui_recvmsg - copy received data to the socket user. * @sock: Socket to copy data from. * @msg: Various user space related information. - * @size: Size of user buffer. + * @len: Size of user buffer. * @flags: User specified flags. * * Copy received data to the socket user. * Returns non-negative upon success, negative otherwise. */ static int llc_ui_recvmsg(struct kiocb *iocb, struct socket *sock, - struct msghdr *msg, size_t size, int flags) + struct msghdr *msg, size_t len, int flags) { - struct sock *sk = sock->sk; struct sockaddr_llc *uaddr = (struct sockaddr_llc *)msg->msg_name; - struct sk_buff *skb; + const int nonblock = flags & MSG_DONTWAIT; + struct sk_buff *skb = NULL; + struct sock *sk = sock->sk; + struct llc_sock *llc = llc_sk(sk); size_t copied = 0; - int rc = -ENOMEM; - int noblock = flags & MSG_DONTWAIT; + u32 peek_seq = 0; + u32 *seq; + unsigned long used; + int target; /* Read at least this many bytes */ + long timeo; - dprintk("%s: receiving in %02X from %02X\n", __FUNCTION__, - llc_sk(sk)->laddr.lsap, llc_sk(sk)->daddr.lsap); lock_sock(sk); - if (skb_queue_empty(&sk->sk_receive_queue)) { - rc = llc_wait_data(sk, sock_rcvtimeo(sk, noblock)); - if (rc) - goto out; - } - skb = skb_dequeue(&sk->sk_receive_queue); - if (!skb) /* shutdown */ + copied = -ENOTCONN; + if (sk->sk_state == TCP_LISTEN) goto out; - copied = skb->len; - if (copied > size) - copied = size; - rc = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied); - if (rc) - goto dgram_free; - if (skb->len > copied) { - skb_pull(skb, copied); - skb_queue_head(&sk->sk_receive_queue, skb); - } - if (uaddr) - memcpy(uaddr, llc_ui_skb_cb(skb), sizeof(*uaddr)); - msg->msg_namelen = sizeof(*uaddr); - if (!skb->next) { -dgram_free: - kfree_skb(skb); - } + + timeo = sock_rcvtimeo(sk, nonblock); + + seq = &llc->copied_seq; + if (flags & MSG_PEEK) { + peek_seq = llc->copied_seq; + seq = &peek_seq; + } + + target = sock_rcvlowat(sk, flags & MSG_WAITALL, len); + copied = 0; + + do { + u32 offset; + + /* + * We need to check signals first, to get correct SIGURG + * handling. FIXME: Need to check this doesn't impact 1003.1g + * and move it down to the bottom of the loop + */ + if (signal_pending(current)) { + if (copied) + break; + copied = timeo ? sock_intr_errno(timeo) : -EAGAIN; + break; + } + + /* Next get a buffer. */ + + skb = skb_peek(&sk->sk_receive_queue); + if (skb) { + offset = *seq; + goto found_ok_skb; + } + /* Well, if we have backlog, try to process it now yet. */ + + if (copied >= target && !sk->sk_backlog.tail) + break; + + if (copied) { + if (sk->sk_err || + sk->sk_state == TCP_CLOSE || + (sk->sk_shutdown & RCV_SHUTDOWN) || + !timeo || + (flags & MSG_PEEK)) + break; + } else { + if (sock_flag(sk, SOCK_DONE)) + break; + + if (sk->sk_err) { + copied = sock_error(sk); + break; + } + if (sk->sk_shutdown & RCV_SHUTDOWN) + break; + + if (sk->sk_state == TCP_CLOSE) { + if (!sock_flag(sk, SOCK_DONE)) { + /* + * This occurs when user tries to read + * from never connected socket. + */ + copied = -ENOTCONN; + break; + } + break; + } + if (!timeo) { + copied = -EAGAIN; + break; + } + } + + if (copied >= target) { /* Do not sleep, just process backlog. */ + release_sock(sk); + lock_sock(sk); + } else + sk_wait_data(sk, &timeo); + + if ((flags & MSG_PEEK) && peek_seq != llc->copied_seq) { + if (net_ratelimit()) + printk(KERN_DEBUG "LLC(%s:%d): Application " + "bug, race in MSG_PEEK.\n", + current->comm, current->pid); + peek_seq = llc->copied_seq; + } + continue; + found_ok_skb: + /* Ok so how much can we use? */ + used = skb->len - offset; + if (len < used) + used = len; + + if (!(flags & MSG_TRUNC)) { + int rc = skb_copy_datagram_iovec(skb, offset, + msg->msg_iov, used); + if (rc) { + /* Exception. Bailout! */ + if (!copied) + copied = -EFAULT; + break; + } + } + + *seq += used; + copied += used; + len -= used; + + if (used + offset < skb->len) + continue; + + if (!(flags & MSG_PEEK)) { + sk_eat_skb(sk, skb); + *seq = 0; + } + } while (len > 0); + + /* + * According to UNIX98, msg_name/msg_namelen are ignored + * on connected socket. -ANK + * But... af_llc still doesn't have separate sets of methods for + * SOCK_DGRAM and SOCK_STREAM :-( So we have to do this test, will + * eventually fix this tho :-) -acme + */ + if (sk->sk_type == SOCK_DGRAM) + goto copy_uaddr; out: release_sock(sk); - return rc ? : copied; + return copied; +copy_uaddr: + if (uaddr != NULL && skb != NULL) { + memcpy(uaddr, llc_ui_skb_cb(skb), sizeof(*uaddr)); + msg->msg_namelen = sizeof(*uaddr); + } + goto out; } /** diff --git a/net/llc/llc_conn.c b/net/llc/llc_conn.c index e10ce5adb104..042b24a8ca4c 100644 --- a/net/llc/llc_conn.c +++ b/net/llc/llc_conn.c @@ -120,8 +120,8 @@ int llc_conn_state_process(struct sock *sk, struct sk_buff *skb) sk->sk_socket->state = SS_UNCONNECTED; sk->sk_state = TCP_CLOSE; if (!sock_flag(sk, SOCK_DEAD)) { - sk->sk_state_change(sk); sock_set_flag(sk, SOCK_DEAD); + sk->sk_state_change(sk); } } kfree_skb(skb); diff --git a/net/llc/llc_proc.c b/net/llc/llc_proc.c index 36e8db3fa1a2..bd531cb235a7 100644 --- a/net/llc/llc_proc.c +++ b/net/llc/llc_proc.c @@ -134,7 +134,7 @@ static int llc_seq_socket_show(struct seq_file *seq, void *v) llc_ui_format_mac(seq, llc->daddr.mac); seq_printf(seq, "@%02X %8d %8d %2d %3d %4d\n", llc->daddr.lsap, atomic_read(&sk->sk_wmem_alloc), - atomic_read(&sk->sk_rmem_alloc), + atomic_read(&sk->sk_rmem_alloc) - llc->copied_seq, sk->sk_state, sk->sk_socket ? SOCK_INODE(sk->sk_socket)->i_uid : -1, llc->link); diff --git a/net/llc/llc_sap.c b/net/llc/llc_sap.c index e6d538937f93..4029ceee9b91 100644 --- a/net/llc/llc_sap.c +++ b/net/llc/llc_sap.c @@ -49,9 +49,12 @@ struct sk_buff *llc_alloc_frame(struct sock *sk, struct net_device *dev) void llc_save_primitive(struct sock *sk, struct sk_buff* skb, u8 prim) { - struct sockaddr_llc *addr = llc_ui_skb_cb(skb); + struct sockaddr_llc *addr; + if (skb->sk->sk_type == SOCK_STREAM) /* See UNIX98 */ + return; /* save primitive for use by the user. */ + addr = llc_ui_skb_cb(skb); addr->sllc_family = sk->sk_family; addr->sllc_arphrd = skb->dev->type; addr->sllc_test = prim == LLC_TEST_PRIM; From 91fbc6edfa7086b5fcdb74ea82ab747104541f1f Mon Sep 17 00:00:00 2001 From: Anton Altaparmakov Date: Thu, 22 Sep 2005 13:26:44 +0100 Subject: [PATCH 038/352] NTFS: Fix sparse warnings that have crept in over time. Signed-off-by: Anton Altaparmakov --- fs/ntfs/ChangeLog | 4 ++++ fs/ntfs/layout.h | 7 ++++--- fs/ntfs/logfile.h | 2 +- 3 files changed, 9 insertions(+), 4 deletions(-) diff --git a/fs/ntfs/ChangeLog b/fs/ntfs/ChangeLog index c7e9237379c2..ee8665f62a65 100644 --- a/fs/ntfs/ChangeLog +++ b/fs/ntfs/ChangeLog @@ -22,6 +22,10 @@ ToDo/Notes: - Enable the code for setting the NT4 compatibility flag when we start making NTFS 1.2 specific modifications. +2.1.25-WIP + + - Fix sparse warnings that have crept in over time. + 2.1.24 - Lots of bug fixes and support more clean journal states. - Support journals ($LogFile) which have been modified by chkdsk. This diff --git a/fs/ntfs/layout.h b/fs/ntfs/layout.h index 609ad1728ce4..dbf5c2a06dab 100644 --- a/fs/ntfs/layout.h +++ b/fs/ntfs/layout.h @@ -317,12 +317,13 @@ typedef u64 MFT_REF; typedef le64 leMFT_REF; #define MK_MREF(m, s) ((MFT_REF)(((MFT_REF)(s) << 48) | \ - ((MFT_REF)(m) & MFT_REF_MASK_CPU))) + ((MFT_REF)(m) & (u64)MFT_REF_MASK_CPU))) #define MK_LE_MREF(m, s) cpu_to_le64(MK_MREF(m, s)) -#define MREF(x) ((unsigned long)((x) & MFT_REF_MASK_CPU)) +#define MREF(x) ((unsigned long)((x) & (u64)MFT_REF_MASK_CPU)) #define MSEQNO(x) ((u16)(((x) >> 48) & 0xffff)) -#define MREF_LE(x) ((unsigned long)(le64_to_cpu(x) & MFT_REF_MASK_CPU)) +#define MREF_LE(x) ((unsigned long)(le64_to_cpu(x) & \ + (u64)MFT_REF_MASK_CPU)) #define MSEQNO_LE(x) ((u16)((le64_to_cpu(x) >> 48) & 0xffff)) #define IS_ERR_MREF(x) (((x) & 0x0000800000000000ULL) ? 1 : 0) diff --git a/fs/ntfs/logfile.h b/fs/ntfs/logfile.h index 42388f95ea6d..a51f3dd0e9eb 100644 --- a/fs/ntfs/logfile.h +++ b/fs/ntfs/logfile.h @@ -113,7 +113,7 @@ typedef struct { */ enum { RESTART_VOLUME_IS_CLEAN = const_cpu_to_le16(0x0002), - RESTART_SPACE_FILLER = 0xffff, /* gcc: Force enum bit width to 16. */ + RESTART_SPACE_FILLER = const_cpu_to_le16(0xffff), /* gcc: Force enum bit width to 16. */ } __attribute__ ((__packed__)); typedef le16 RESTART_AREA_FLAGS; From 83a78d9ba792660418d692fd6737871aefdbff36 Mon Sep 17 00:00:00 2001 From: Peter Chubb Date: Mon, 19 Sep 2005 09:36:12 +1000 Subject: [PATCH 039/352] [IA64] Fix simscsi for new SCSI midlayer The sd driver now uses scsi_execute_req() for almost everything. scsi_execute_req() converts requests into scatterlists. Fix the HP SCSI disk simulator to understand scatterlists for more commands. Without this patch the current kernel will not boot on the simulator (the disks are always detected as having no sectors, and so cannot be mounted). Signed-off-by: Peter Chubb Signed-off-by: Tony Luck --- arch/ia64/hp/sim/simscsi.c | 29 +++++++++++++++++++++++------ 1 file changed, 23 insertions(+), 6 deletions(-) diff --git a/arch/ia64/hp/sim/simscsi.c b/arch/ia64/hp/sim/simscsi.c index 56405dbfd739..a18983a3c934 100644 --- a/arch/ia64/hp/sim/simscsi.c +++ b/arch/ia64/hp/sim/simscsi.c @@ -233,6 +233,23 @@ simscsi_readwrite10 (struct scsi_cmnd *sc, int mode) simscsi_readwrite(sc, mode, offset, ((sc->cmnd[7] << 8) | sc->cmnd[8])*512); } +static void simscsi_fillresult(struct scsi_cmnd *sc, char *buf, unsigned len) +{ + + int scatterlen = sc->use_sg; + struct scatterlist *slp; + + if (scatterlen == 0) + memcpy(sc->request_buffer, buf, len); + else for (slp = (struct scatterlist *)sc->buffer; scatterlen-- > 0 && len > 0; slp++) { + unsigned thislen = min(len, slp->length); + + memcpy(page_address(slp->page) + slp->offset, buf, thislen); + slp++; + len -= thislen; + } +} + static int simscsi_queuecommand (struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *)) { @@ -240,6 +257,7 @@ simscsi_queuecommand (struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *)) char fname[MAX_ROOT_LEN+16]; size_t disk_size; char *buf; + char localbuf[36]; #if DEBUG_SIMSCSI register long sp asm ("sp"); @@ -263,7 +281,7 @@ simscsi_queuecommand (struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *)) /* disk doesn't exist... */ break; } - buf = sc->request_buffer; + buf = localbuf; buf[0] = 0; /* magnetic disk */ buf[1] = 0; /* not a removable medium */ buf[2] = 2; /* SCSI-2 compliant device */ @@ -273,6 +291,7 @@ simscsi_queuecommand (struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *)) buf[6] = 0; /* reserved */ buf[7] = 0; /* various flags */ memcpy(buf + 8, "HP SIMULATED DISK 0.00", 28); + simscsi_fillresult(sc, buf, 36); sc->result = GOOD; break; @@ -304,16 +323,13 @@ simscsi_queuecommand (struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *)) simscsi_readwrite10(sc, SSC_WRITE); break; - case READ_CAPACITY: if (desc[target_id] < 0 || sc->request_bufflen < 8) { break; } - buf = sc->request_buffer; - + buf = localbuf; disk_size = simscsi_get_disk_size(desc[target_id]); - /* pretend to be a 1GB disk (partition table contains real stuff): */ buf[0] = (disk_size >> 24) & 0xff; buf[1] = (disk_size >> 16) & 0xff; buf[2] = (disk_size >> 8) & 0xff; @@ -323,13 +339,14 @@ simscsi_queuecommand (struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *)) buf[5] = 0; buf[6] = 2; buf[7] = 0; + simscsi_fillresult(sc, buf, 8); sc->result = GOOD; break; case MODE_SENSE: case MODE_SENSE_10: /* sd.c uses this to determine whether disk does write-caching. */ - memset(sc->request_buffer, 0, 128); + simscsi_fillresult(sc, (char *)empty_zero_page, sc->request_bufflen); sc->result = GOOD; break; From 40fd3533c93f0062b6d1d8540961ef70fc8ab750 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Thu, 22 Sep 2005 13:03:36 -0700 Subject: [PATCH 040/352] [SPARC64]: Kill readjust_prom_translations() Testing shows that the prom_unmap() calls do absolutely nothing. Signed-off-by: David S. Miller --- arch/sparc64/mm/init.c | 35 ----------------------------------- 1 file changed, 35 deletions(-) diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c index 92d095802958..ec47de494c1f 100644 --- a/arch/sparc64/mm/init.c +++ b/arch/sparc64/mm/init.c @@ -619,39 +619,6 @@ static void remap_kernel(void) } } -static void readjust_prom_translations(void) -{ - int nents, i; - - nents = read_obp_translations(); - for (i = 0; i < nents; i++) { - unsigned long vaddr = prom_trans[i].virt; - unsigned long size = prom_trans[i].size; - - if (vaddr < 0xf0000000UL) { - unsigned long avoid_start = (unsigned long) KERNBASE; - unsigned long avoid_end = avoid_start + (4 * 1024 * 1024); - - if (bigkernel) - avoid_end += (4 * 1024 * 1024); - if (vaddr < avoid_start) { - unsigned long top = vaddr + size; - - if (top > avoid_start) - top = avoid_start; - prom_unmap(top - vaddr, vaddr); - } - if ((vaddr + size) > avoid_end) { - unsigned long bottom = vaddr; - - if (bottom < avoid_end) - bottom = avoid_end; - prom_unmap((vaddr + size) - bottom, bottom); - } - } - } -} - static void inherit_prom_mappings(void) { int n; @@ -663,8 +630,6 @@ static void inherit_prom_mappings(void) prom_printf("Remapping the kernel... "); remap_kernel(); - readjust_prom_translations(); - prom_printf("done.\n"); register_prom_callbacks(); From 20bb86852a6b7d9ca8c48ff921ff3904038959cf Mon Sep 17 00:00:00 2001 From: Keith Owens Date: Thu, 22 Sep 2005 18:49:15 +1000 Subject: [PATCH 041/352] [IA64] Wire in the MCA/INIT handler stacks Wire the MCA/INIT handler stacks into DTR[2] and track them in IA64_KR(CURRENT_STACK). This gives the MCA/INIT handler stacks the same TLB status as normal kernel stacks. Reload the old CURRENT_STACK data on return from OS to SAL. Signed-off-by: Keith Owens Signed-off-by: Tony Luck --- arch/ia64/kernel/mca_asm.S | 96 +++++++++++++++++++++++++++++++++----- include/asm-ia64/mca.h | 5 ++ 2 files changed, 90 insertions(+), 11 deletions(-) diff --git a/arch/ia64/kernel/mca_asm.S b/arch/ia64/kernel/mca_asm.S index 499a065f4e60..db32fc1d3935 100644 --- a/arch/ia64/kernel/mca_asm.S +++ b/arch/ia64/kernel/mca_asm.S @@ -489,24 +489,27 @@ ia64_state_save: ;; st8 [temp1]=r17,16 // pal_min_state st8 [temp2]=r6,16 // prev_IA64_KR_CURRENT + mov r6=IA64_KR(CURRENT_STACK) + ;; + st8 [temp1]=r6,16 // prev_IA64_KR_CURRENT_STACK + st8 [temp2]=r0,16 // prev_task, starts off as NULL mov r6=cr.ifa ;; - st8 [temp1]=r0,16 // prev_task, starts off as NULL - st8 [temp2]=r12,16 // cr.isr + st8 [temp1]=r12,16 // cr.isr + st8 [temp2]=r6,16 // cr.ifa mov r12=cr.itir ;; - st8 [temp1]=r6,16 // cr.ifa - st8 [temp2]=r12,16 // cr.itir + st8 [temp1]=r12,16 // cr.itir + st8 [temp2]=r11,16 // cr.iipa mov r12=cr.iim ;; - st8 [temp1]=r11,16 // cr.iipa - st8 [temp2]=r12,16 // cr.iim - mov r6=cr.iha + st8 [temp1]=r12,16 // cr.iim (p1) mov r12=IA64_MCA_COLD_BOOT (p2) mov r12=IA64_INIT_WARM_BOOT + mov r6=cr.iha ;; - st8 [temp1]=r6,16 // cr.iha - st8 [temp2]=r12 // os_status, default is cold boot + st8 [temp2]=r6,16 // cr.iha + st8 [temp1]=r12 // os_status, default is cold boot mov r6=IA64_MCA_SAME_CONTEXT ;; st8 [temp1]=r6 // context, default is same context @@ -823,9 +826,12 @@ ia64_state_restore: ld8 r12=[temp1],16 // sal_ra ld8 r9=[temp2],16 // sal_gp ;; - ld8 r22=[temp1],24 // pal_min_state, virtual. skip prev_task + ld8 r22=[temp1],16 // pal_min_state, virtual ld8 r21=[temp2],16 // prev_IA64_KR_CURRENT ;; + ld8 r16=[temp1],16 // prev_IA64_KR_CURRENT_STACK + ld8 r20=[temp2],16 // prev_task + ;; ld8 temp3=[temp1],16 // cr.isr ld8 temp4=[temp2],16 // cr.ifa ;; @@ -846,6 +852,45 @@ ia64_state_restore: ld8 r8=[temp1] // os_status ld8 r10=[temp2] // context + /* Wire IA64_TR_CURRENT_STACK to the stack that we are resuming to. To + * avoid any dependencies on the algorithm in ia64_switch_to(), just + * purge any existing CURRENT_STACK mapping and insert the new one. + * + * r16 contains prev_IA64_KR_CURRENT_STACK, r21 contains + * prev_IA64_KR_CURRENT, these values may have been changed by the C + * code. Do not use r8, r9, r10, r22, they contain values ready for + * the return to SAL. + */ + + mov r15=IA64_KR(CURRENT_STACK) // physical granule mapped by IA64_TR_CURRENT_STACK + ;; + shl r15=r15,IA64_GRANULE_SHIFT + ;; + dep r15=-1,r15,61,3 // virtual granule + mov r18=IA64_GRANULE_SHIFT<<2 // for cr.itir.ps + ;; + ptr.d r15,r18 + ;; + srlz.d + + extr.u r19=r21,61,3 // r21 = prev_IA64_KR_CURRENT + shl r20=r16,IA64_GRANULE_SHIFT // r16 = prev_IA64_KR_CURRENT_STACK + movl r21=PAGE_KERNEL // page properties + ;; + mov IA64_KR(CURRENT_STACK)=r16 + cmp.ne p6,p0=RGN_KERNEL,r19 // new stack is in the kernel region? + or r21=r20,r21 // construct PA | page properties +(p6) br.spnt 1f // the dreaded cpu 0 idle task in region 5:( + ;; + mov cr.itir=r18 + mov cr.ifa=r21 + mov r20=IA64_TR_CURRENT_STACK + ;; + itr.d dtr[r20]=r21 + ;; + srlz.d +1: + br.sptk b0 //EndStub////////////////////////////////////////////////////////////////////// @@ -982,6 +1027,7 @@ ia64_set_kernel_registers: add temp4=temp4, temp1 // &struct ia64_sal_os_state.os_gp add r12=temp1, temp3 // kernel stack pointer on MCA/INIT stack add r13=temp1, r3 // set current to start of MCA/INIT stack + add r20=temp1, r3 // physical start of MCA/INIT stack ;; ld8 r1=[temp4] // OS GP from SAL OS state ;; @@ -991,7 +1037,35 @@ ia64_set_kernel_registers: ;; mov IA64_KR(CURRENT)=r13 - // FIXME: do I need to wire IA64_KR_CURRENT_STACK and IA64_TR_CURRENT_STACK? + /* Wire IA64_TR_CURRENT_STACK to the MCA/INIT handler stack. To avoid + * any dependencies on the algorithm in ia64_switch_to(), just purge + * any existing CURRENT_STACK mapping and insert the new one. + */ + + mov r16=IA64_KR(CURRENT_STACK) // physical granule mapped by IA64_TR_CURRENT_STACK + ;; + shl r16=r16,IA64_GRANULE_SHIFT + ;; + dep r16=-1,r16,61,3 // virtual granule + mov r18=IA64_GRANULE_SHIFT<<2 // for cr.itir.ps + ;; + ptr.d r16,r18 + ;; + srlz.d + + shr.u r16=r20,IA64_GRANULE_SHIFT // r20 = physical start of MCA/INIT stack + movl r21=PAGE_KERNEL // page properties + ;; + mov IA64_KR(CURRENT_STACK)=r16 + or r21=r20,r21 // construct PA | page properties + ;; + mov cr.itir=r18 + mov cr.ifa=r13 + mov r20=IA64_TR_CURRENT_STACK + ;; + itr.d dtr[r20]=r21 + ;; + srlz.d br.sptk b0 diff --git a/include/asm-ia64/mca.h b/include/asm-ia64/mca.h index 97a28b8b2ddd..c7d9c9ed38ba 100644 --- a/include/asm-ia64/mca.h +++ b/include/asm-ia64/mca.h @@ -80,7 +80,12 @@ struct ia64_sal_os_state { u64 sal_ra; /* Return address in SAL, physical */ u64 sal_gp; /* GP of the SAL - physical */ pal_min_state_area_t *pal_min_state; /* from R17. physical in asm, virtual in C */ + /* Previous values of IA64_KR(CURRENT) and IA64_KR(CURRENT_STACK). + * Note: if the MCA/INIT recovery code wants to resume to a new context + * then it must change these values to reflect the new kernel stack. + */ u64 prev_IA64_KR_CURRENT; /* previous value of IA64_KR(CURRENT) */ + u64 prev_IA64_KR_CURRENT_STACK; struct task_struct *prev_task; /* previous task, NULL if it is not useful */ /* Some interrupt registers are not saved in minstate, pt_regs or * switch_stack. Because MCA/INIT can occur when interrupts are From 4881e2cd25d2d9cf9fca263caff3a0ce732d7d6b Mon Sep 17 00:00:00 2001 From: Hidetoshi Seto Date: Tue, 20 Sep 2005 16:34:41 +0900 Subject: [PATCH 042/352] [IA64] MCA recovery verify pfn_valid Verify the pfn is valid before calling pfn_to_page(), and cut isolation message if nothing was done. Signed-off-by: Hidetoshi Seto Acked-by: Russ Anderson Signed-off-by: Tony Luck --- arch/ia64/kernel/mca_drv.c | 21 +++++++++++++++------ 1 file changed, 15 insertions(+), 6 deletions(-) diff --git a/arch/ia64/kernel/mca_drv.c b/arch/ia64/kernel/mca_drv.c index 80f83d6cdbfc..f081c60ab206 100644 --- a/arch/ia64/kernel/mca_drv.c +++ b/arch/ia64/kernel/mca_drv.c @@ -56,8 +56,9 @@ static struct page *page_isolate[MAX_PAGE_ISOLATE]; static int num_page_isolate = 0; typedef enum { - ISOLATE_NG = 0, - ISOLATE_OK = 1 + ISOLATE_NG, + ISOLATE_OK, + ISOLATE_NONE } isolate_status_t; /* @@ -74,7 +75,7 @@ static struct { * @paddr: poisoned memory location * * Return value: - * ISOLATE_OK / ISOLATE_NG + * one of isolate_status_t, ISOLATE_OK/NG/NONE. */ static isolate_status_t @@ -85,7 +86,10 @@ mca_page_isolate(unsigned long paddr) /* whether physical address is valid or not */ if (!ia64_phys_addr_valid(paddr)) - return ISOLATE_NG; + return ISOLATE_NONE; + + if (!pfn_valid(paddr)) + return ISOLATE_NONE; /* convert physical address to physical page number */ p = pfn_to_page(paddr>>PAGE_SHIFT); @@ -122,10 +126,15 @@ mca_handler_bh(unsigned long paddr) current->pid, current->comm); spin_lock(&mca_bh_lock); - if (mca_page_isolate(paddr) == ISOLATE_OK) { + switch (mca_page_isolate(paddr)) { + case ISOLATE_OK: printk(KERN_DEBUG "Page isolation: ( %lx ) success.\n", paddr); - } else { + break; + case ISOLATE_NG: printk(KERN_DEBUG "Page isolation: ( %lx ) failure.\n", paddr); + break; + default: + break; } spin_unlock(&mca_bh_lock); From bff06d552240ba7f5b49482a4865871d7bc03dc2 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Thu, 22 Sep 2005 20:11:33 -0700 Subject: [PATCH 043/352] [SPARC64]: Rewrite bootup sequence. Instead of all of this cpu-specific code to remap the kernel to the correct location, use portable firmware calls to do this instead. What we do now is the following in position independant assembler: chosen_node = prom_finddevice("/chosen"); prom_mmu_ihandle_cache = prom_getint(chosen_node, "mmu"); vaddr = 4MB_ALIGN(current_text_addr()); prom_translate(vaddr, &paddr_high, &paddr_low, &mode); prom_boot_mapping_mode = mode; prom_boot_mapping_phys_high = paddr_high; prom_boot_mapping_phys_low = paddr_low; prom_map(-1, 8 * 1024 * 1024, KERNBASE, paddr_low); and that replaces the massive amount of by-hand TLB probing and programming we used to do here. The new code should also handle properly the case where the kernel is mapped at the correct address already (think: future kexec support). Consequently, the bulk of remap_kernel() dies as does the entirety of arch/sparc64/prom/map.S We try to share some strings in the PROM library with the ones used at bootup, and while we're here mark input strings to oplib.h routines with "const" when appropriate. There are many more simplifications now possible. For one thing, we can consolidate the two copies we now have of a lot of cpu setup code sitting in head.S and trampoline.S. This is a significant step towards CONFIG_DEBUG_PAGEALLOC support. Signed-off-by: David S. Miller --- arch/sparc64/kernel/head.S | 551 +++++++++---------------------- arch/sparc64/kernel/setup.c | 15 +- arch/sparc64/kernel/trampoline.S | 16 +- arch/sparc64/mm/init.c | 98 +----- arch/sparc64/prom/Makefile | 2 +- arch/sparc64/prom/console.c | 2 +- arch/sparc64/prom/devops.c | 2 +- arch/sparc64/prom/init.c | 2 +- arch/sparc64/prom/map.S | 72 ---- arch/sparc64/prom/misc.c | 34 +- arch/sparc64/prom/p1275.c | 2 +- arch/sparc64/prom/printf.c | 2 +- arch/sparc64/prom/tree.c | 50 +-- include/asm-sparc64/oplib.h | 52 +-- 14 files changed, 255 insertions(+), 645 deletions(-) delete mode 100644 arch/sparc64/prom/map.S diff --git a/arch/sparc64/kernel/head.S b/arch/sparc64/kernel/head.S index dc3551f46b76..8b83520e4272 100644 --- a/arch/sparc64/kernel/head.S +++ b/arch/sparc64/kernel/head.S @@ -80,15 +80,165 @@ sparc_ramdisk_image64: .xword 0 .word _end - /* We must be careful, 32-bit OpenBOOT will get confused if it - * tries to save away a register window to a 64-bit kernel - * stack address. Flush all windows, disable interrupts, - * remap if necessary, jump onto kernel trap table, then kernel - * stack, or else we die. - * - * PROM entry point is on %o4 - */ + /* PROM cif handler code address is in %o4. */ sparc64_boot: +1: rd %pc, %g7 + set 1b, %g1 + cmp %g1, %g7 + be,pn %xcc, sparc64_boot_after_remap + mov %o4, %l7 + + /* We need to remap the kernel. Use position independant + * code to remap us to KERNBASE. + * + * SILO can invoke us with 32-bit address masking enabled, + * so make sure that's clear. + */ + rdpr %pstate, %g1 + andn %g1, PSTATE_AM, %g1 + wrpr %g1, 0x0, %pstate + ba,a,pt %xcc, 1f + + .globl prom_finddev_name, prom_chosen_path + .globl prom_getprop_name, prom_mmu_name + .globl prom_callmethod_name, prom_translate_name + .globl prom_map_name, prom_unmap_name, prom_mmu_ihandle_cache + .globl prom_boot_mapped_pc, prom_boot_mapping_mode + .globl prom_boot_mapping_phys_high, prom_boot_mapping_phys_low +prom_finddev_name: + .asciz "finddevice" +prom_chosen_path: + .asciz "/chosen" +prom_getprop_name: + .asciz "getprop" +prom_mmu_name: + .asciz "mmu" +prom_callmethod_name: + .asciz "call-method" +prom_translate_name: + .asciz "translate" +prom_map_name: + .asciz "map" +prom_unmap_name: + .asciz "unmap" + .align 4 +prom_mmu_ihandle_cache: + .word 0 +prom_boot_mapped_pc: + .word 0 +prom_boot_mapping_mode: + .word 0 + .align 8 +prom_boot_mapping_phys_high: + .xword 0 +prom_boot_mapping_phys_low: + .xword 0 +1: + rd %pc, %l0 + mov (1b - prom_finddev_name), %l1 + mov (1b - prom_chosen_path), %l2 + mov (1b - prom_boot_mapped_pc), %l3 + sub %l0, %l1, %l1 + sub %l0, %l2, %l2 + sub %l0, %l3, %l3 + stw %l0, [%l3] + sub %sp, (192 + 128), %sp + + /* chosen_node = prom_finddevice("/chosen") */ + stx %l1, [%sp + 2047 + 128 + 0x00] ! service, "finddevice" + mov 1, %l3 + stx %l3, [%sp + 2047 + 128 + 0x08] ! num_args, 1 + stx %l3, [%sp + 2047 + 128 + 0x10] ! num_rets, 1 + stx %l2, [%sp + 2047 + 128 + 0x18] ! arg1, "/chosen" + stx %g0, [%sp + 2047 + 128 + 0x20] ! ret1 + call %l7 + add %sp, (2047 + 128), %o0 ! argument array + + ldx [%sp + 2047 + 128 + 0x20], %l4 ! chosen device node + + mov (1b - prom_getprop_name), %l1 + mov (1b - prom_mmu_name), %l2 + mov (1b - prom_mmu_ihandle_cache), %l5 + sub %l0, %l1, %l1 + sub %l0, %l2, %l2 + sub %l0, %l5, %l5 + + /* prom_mmu_ihandle_cache = prom_getint(chosen_node, "mmu") */ + stx %l1, [%sp + 2047 + 128 + 0x00] ! service, "getprop" + mov 4, %l3 + stx %l3, [%sp + 2047 + 128 + 0x08] ! num_args, 4 + mov 1, %l3 + stx %l3, [%sp + 2047 + 128 + 0x10] ! num_rets, 1 + stx %l4, [%sp + 2047 + 128 + 0x18] ! arg1, chosen_node + stx %l2, [%sp + 2047 + 128 + 0x20] ! arg2, "mmu" + stx %l5, [%sp + 2047 + 128 + 0x28] ! arg3, &prom_mmu_ihandle_cache + mov 4, %l3 + stx %l3, [%sp + 2047 + 128 + 0x30] ! arg4, sizeof(arg3) + stx %g0, [%sp + 2047 + 128 + 0x38] ! ret1 + call %l7 + add %sp, (2047 + 128), %o0 ! argument array + + mov (1b - prom_callmethod_name), %l1 + mov (1b - prom_translate_name), %l2 + sub %l0, %l1, %l1 + sub %l0, %l2, %l2 + lduw [%l5], %l5 ! prom_mmu_ihandle_cache + + stx %l1, [%sp + 2047 + 128 + 0x00] ! service, "call-method" + mov 3, %l3 + stx %l3, [%sp + 2047 + 128 + 0x08] ! num_args, 3 + mov 5, %l3 + stx %l3, [%sp + 2047 + 128 + 0x10] ! num_rets, 5 + stx %l2, [%sp + 2047 + 128 + 0x18] ! arg1: "translate" + stx %l5, [%sp + 2047 + 128 + 0x20] ! arg2: prom_mmu_ihandle_cache + srlx %l0, 22, %l3 + sllx %l3, 22, %l3 + stx %l3, [%sp + 2047 + 128 + 0x28] ! arg3: vaddr, our PC + stx %g0, [%sp + 2047 + 128 + 0x30] ! res1 + stx %g0, [%sp + 2047 + 128 + 0x38] ! res2 + stx %g0, [%sp + 2047 + 128 + 0x40] ! res3 + stx %g0, [%sp + 2047 + 128 + 0x48] ! res4 + stx %g0, [%sp + 2047 + 128 + 0x50] ! res5 + call %l7 + add %sp, (2047 + 128), %o0 ! argument array + + ldx [%sp + 2047 + 128 + 0x40], %l1 ! translation mode + mov (1b - prom_boot_mapping_mode), %l4 + sub %l0, %l4, %l4 + stw %l1, [%l4] + mov (1b - prom_boot_mapping_phys_high), %l4 + sub %l0, %l4, %l4 + ldx [%sp + 2047 + 128 + 0x48], %l2 ! physaddr high + stx %l2, [%l4 + 0x0] + ldx [%sp + 2047 + 128 + 0x50], %l3 ! physaddr low + stx %l3, [%l4 + 0x8] + + /* Leave service as-is, "call-method" */ + mov 7, %l3 + stx %l3, [%sp + 2047 + 128 + 0x08] ! num_args, 7 + mov 1, %l3 + stx %l3, [%sp + 2047 + 128 + 0x10] ! num_rets, 7 + mov (1b - prom_map_name), %l3 + sub %l0, %l3, %l3 + stx %l3, [%sp + 2047 + 128 + 0x18] ! arg1: "map" + /* Leave arg2 as-is, prom_mmu_ihandle_cache */ + mov -1, %l3 + stx %l3, [%sp + 2047 + 128 + 0x28] ! arg3: mode (-1 default) + sethi %hi(8 * 1024 * 1024), %l3 + stx %l3, [%sp + 2047 + 128 + 0x30] ! arg4: size (8MB) + sethi %hi(KERNBASE), %l3 + stx %l3, [%sp + 2047 + 128 + 0x38] ! arg5: vaddr (KERNBASE) + stx %g0, [%sp + 2047 + 128 + 0x40] ! arg6: empty + mov (1b - prom_boot_mapping_phys_low), %l3 + sub %l0, %l3, %l3 + ldx [%l3], %l3 + stx %l3, [%sp + 2047 + 128 + 0x48] ! arg7: phys addr + call %l7 + add %sp, (2047 + 128), %o0 ! argument array + + add %sp, (192 + 128), %sp + +sparc64_boot_after_remap: BRANCH_IF_CHEETAH_BASE(g1,g7,cheetah_boot) BRANCH_IF_CHEETAH_PLUS_OR_FOLLOWON(g1,g7,cheetah_plus_boot) ba,pt %xcc, spitfire_boot @@ -125,185 +275,7 @@ cheetah_generic_boot: stxa %g0, [%g3] ASI_IMMU membar #Sync - wrpr %g0, (PSTATE_PRIV|PSTATE_PEF|PSTATE_IE), %pstate - wr %g0, 0, %fprs - - /* Just like for Spitfire, we probe itlb-2 for a mapping which - * matches our current %pc. We take the physical address in - * that mapping and use it to make our own. - */ - - /* %g5 holds the tlb data */ - sethi %uhi(_PAGE_VALID | _PAGE_SZ4MB), %g5 - sllx %g5, 32, %g5 - or %g5, (_PAGE_CP | _PAGE_CV | _PAGE_P | _PAGE_L | _PAGE_W | _PAGE_G), %g5 - - /* Put PADDR tlb data mask into %g3. */ - sethi %uhi(_PAGE_PADDR), %g3 - or %g3, %ulo(_PAGE_PADDR), %g3 - sllx %g3, 32, %g3 - sethi %hi(_PAGE_PADDR), %g7 - or %g7, %lo(_PAGE_PADDR), %g7 - or %g3, %g7, %g3 - - set 2 << 16, %l0 /* TLB entry walker. */ - set 0x1fff, %l2 /* Page mask. */ - rd %pc, %l3 - andn %l3, %l2, %g2 /* vaddr comparator */ - -1: ldxa [%l0] ASI_ITLB_TAG_READ, %g1 - membar #Sync - andn %g1, %l2, %g1 - cmp %g1, %g2 - be,pn %xcc, cheetah_got_tlbentry - nop - and %l0, (127 << 3), %g1 - cmp %g1, (127 << 3) - blu,pt %xcc, 1b - add %l0, (1 << 3), %l0 - - /* Search the small TLB. OBP never maps us like that but - * newer SILO can. - */ - clr %l0 - -1: ldxa [%l0] ASI_ITLB_TAG_READ, %g1 - membar #Sync - andn %g1, %l2, %g1 - cmp %g1, %g2 - be,pn %xcc, cheetah_got_tlbentry - nop - cmp %l0, (15 << 3) - blu,pt %xcc, 1b - add %l0, (1 << 3), %l0 - - /* BUG() if we get here... */ - ta 0x5 - -cheetah_got_tlbentry: - ldxa [%l0] ASI_ITLB_DATA_ACCESS, %g0 - ldxa [%l0] ASI_ITLB_DATA_ACCESS, %g1 - membar #Sync - and %g1, %g3, %g1 - set 0x5fff, %l0 - andn %g1, %l0, %g1 - or %g5, %g1, %g5 - - /* Clear out any KERNBASE area entries. */ - set 2 << 16, %l0 - sethi %hi(KERNBASE), %g3 - sethi %hi(KERNBASE<<1), %g7 - mov TLB_TAG_ACCESS, %l7 - - /* First, check ITLB */ -1: ldxa [%l0] ASI_ITLB_TAG_READ, %g1 - membar #Sync - andn %g1, %l2, %g1 - cmp %g1, %g3 - blu,pn %xcc, 2f - cmp %g1, %g7 - bgeu,pn %xcc, 2f - nop - stxa %g0, [%l7] ASI_IMMU - membar #Sync - stxa %g0, [%l0] ASI_ITLB_DATA_ACCESS - membar #Sync - -2: and %l0, (127 << 3), %g1 - cmp %g1, (127 << 3) - blu,pt %xcc, 1b - add %l0, (1 << 3), %l0 - - /* Next, check DTLB */ - set 2 << 16, %l0 -1: ldxa [%l0] ASI_DTLB_TAG_READ, %g1 - membar #Sync - andn %g1, %l2, %g1 - cmp %g1, %g3 - blu,pn %xcc, 2f - cmp %g1, %g7 - bgeu,pn %xcc, 2f - nop - stxa %g0, [%l7] ASI_DMMU - membar #Sync - stxa %g0, [%l0] ASI_DTLB_DATA_ACCESS - membar #Sync - -2: and %l0, (511 << 3), %g1 - cmp %g1, (511 << 3) - blu,pt %xcc, 1b - add %l0, (1 << 3), %l0 - - /* On Cheetah+, have to check second DTLB. */ - BRANCH_IF_CHEETAH_PLUS_OR_FOLLOWON(g1,l0,2f) - ba,pt %xcc, 9f - nop - -2: set 3 << 16, %l0 -1: ldxa [%l0] ASI_DTLB_TAG_READ, %g1 - membar #Sync - andn %g1, %l2, %g1 - cmp %g1, %g3 - blu,pn %xcc, 2f - cmp %g1, %g7 - bgeu,pn %xcc, 2f - nop - stxa %g0, [%l7] ASI_DMMU - membar #Sync - stxa %g0, [%l0] ASI_DTLB_DATA_ACCESS - membar #Sync - -2: and %l0, (511 << 3), %g1 - cmp %g1, (511 << 3) - blu,pt %xcc, 1b - add %l0, (1 << 3), %l0 - -9: - - /* Now lock the TTE we created into ITLB-0 and DTLB-0, - * entry 15 (and maybe 14 too). - */ - sethi %hi(KERNBASE), %g3 - set (0 << 16) | (15 << 3), %g7 - stxa %g3, [%l7] ASI_DMMU - membar #Sync - stxa %g5, [%g7] ASI_DTLB_DATA_ACCESS - membar #Sync - stxa %g3, [%l7] ASI_IMMU - membar #Sync - stxa %g5, [%g7] ASI_ITLB_DATA_ACCESS - membar #Sync - flush %g3 - membar #Sync - sethi %hi(_end), %g3 /* Check for bigkernel case */ - or %g3, %lo(_end), %g3 - srl %g3, 23, %g3 /* Check if _end > 8M */ - brz,pt %g3, 1f - sethi %hi(KERNBASE), %g3 /* Restore for fixup code below */ - sethi %hi(0x400000), %g3 - or %g3, %lo(0x400000), %g3 - add %g5, %g3, %g5 /* New tte data */ - andn %g5, (_PAGE_G), %g5 - sethi %hi(KERNBASE+0x400000), %g3 - or %g3, %lo(KERNBASE+0x400000), %g3 - set (0 << 16) | (14 << 3), %g7 - stxa %g3, [%l7] ASI_DMMU - membar #Sync - stxa %g5, [%g7] ASI_DTLB_DATA_ACCESS - membar #Sync - stxa %g3, [%l7] ASI_IMMU - membar #Sync - stxa %g5, [%g7] ASI_ITLB_DATA_ACCESS - membar #Sync - flush %g3 - membar #Sync - sethi %hi(KERNBASE), %g3 /* Restore for fixup code below */ - ba,pt %xcc, 1f - nop - -1: set sun4u_init, %g2 - jmpl %g2 + %g0, %g0 - nop + ba,a,pt %xcc, jump_to_sun4u_init spitfire_boot: /* Typically PROM has already enabled both MMU's and both on-chip @@ -313,6 +285,7 @@ spitfire_boot: stxa %g1, [%g0] ASI_LSU_CONTROL membar #Sync +jump_to_sun4u_init: /* * Make sure we are in privileged mode, have address masking, * using the ordinary globals and have enabled floating @@ -324,151 +297,6 @@ spitfire_boot: wrpr %g0, (PSTATE_PRIV|PSTATE_PEF|PSTATE_IE), %pstate wr %g0, 0, %fprs -spitfire_create_mappings: - /* %g5 holds the tlb data */ - sethi %uhi(_PAGE_VALID | _PAGE_SZ4MB), %g5 - sllx %g5, 32, %g5 - or %g5, (_PAGE_CP | _PAGE_CV | _PAGE_P | _PAGE_L | _PAGE_W | _PAGE_G), %g5 - - /* Base of physical memory cannot reliably be assumed to be - * at 0x0! Figure out where it happens to be. -DaveM - */ - - /* Put PADDR tlb data mask into %g3. */ - sethi %uhi(_PAGE_PADDR_SF), %g3 - or %g3, %ulo(_PAGE_PADDR_SF), %g3 - sllx %g3, 32, %g3 - sethi %hi(_PAGE_PADDR_SF), %g7 - or %g7, %lo(_PAGE_PADDR_SF), %g7 - or %g3, %g7, %g3 - - /* Walk through entire ITLB, looking for entry which maps - * our %pc currently, stick PADDR from there into %g5 tlb data. - */ - clr %l0 /* TLB entry walker. */ - set 0x1fff, %l2 /* Page mask. */ - rd %pc, %l3 - andn %l3, %l2, %g2 /* vaddr comparator */ -1: - /* Yes, the nops seem to be necessary for now, don't ask me why. -DaveM */ - ldxa [%l0] ASI_ITLB_TAG_READ, %g1 - nop - nop - nop - andn %g1, %l2, %g1 /* Get vaddr */ - cmp %g1, %g2 - be,a,pn %xcc, spitfire_got_tlbentry - ldxa [%l0] ASI_ITLB_DATA_ACCESS, %g1 - cmp %l0, (63 << 3) - blu,pt %xcc, 1b - add %l0, (1 << 3), %l0 - - /* BUG() if we get here... */ - ta 0x5 - -spitfire_got_tlbentry: - /* Nops here again, perhaps Cheetah/Blackbird are better behaved... */ - nop - nop - nop - and %g1, %g3, %g1 /* Mask to just get paddr bits. */ - set 0x5fff, %l3 /* Mask offset to get phys base. */ - andn %g1, %l3, %g1 - - /* NOTE: We hold on to %g1 paddr base as we need it below to lock - * NOTE: the PROM cif code into the TLB. - */ - - or %g5, %g1, %g5 /* Or it into TAG being built. */ - - clr %l0 /* TLB entry walker. */ - sethi %hi(KERNBASE), %g3 /* 4M lower limit */ - sethi %hi(KERNBASE<<1), %g7 /* 8M upper limit */ - mov TLB_TAG_ACCESS, %l7 -1: - /* Yes, the nops seem to be necessary for now, don't ask me why. -DaveM */ - ldxa [%l0] ASI_ITLB_TAG_READ, %g1 - nop - nop - nop - andn %g1, %l2, %g1 /* Get vaddr */ - cmp %g1, %g3 - blu,pn %xcc, 2f - cmp %g1, %g7 - bgeu,pn %xcc, 2f - nop - stxa %g0, [%l7] ASI_IMMU - stxa %g0, [%l0] ASI_ITLB_DATA_ACCESS - membar #Sync -2: - cmp %l0, (63 << 3) - blu,pt %xcc, 1b - add %l0, (1 << 3), %l0 - - nop; nop; nop - - clr %l0 /* TLB entry walker. */ -1: - /* Yes, the nops seem to be necessary for now, don't ask me why. -DaveM */ - ldxa [%l0] ASI_DTLB_TAG_READ, %g1 - nop - nop - nop - andn %g1, %l2, %g1 /* Get vaddr */ - cmp %g1, %g3 - blu,pn %xcc, 2f - cmp %g1, %g7 - bgeu,pn %xcc, 2f - nop - stxa %g0, [%l7] ASI_DMMU - stxa %g0, [%l0] ASI_DTLB_DATA_ACCESS - membar #Sync -2: - cmp %l0, (63 << 3) - blu,pt %xcc, 1b - add %l0, (1 << 3), %l0 - - nop; nop; nop - - - /* PROM never puts any TLB entries into the MMU with the lock bit - * set. So we gladly use tlb entry 63 for KERNBASE. And maybe 62 too. - */ - - sethi %hi(KERNBASE), %g3 - mov (63 << 3), %g7 - stxa %g3, [%l7] ASI_DMMU /* KERNBASE into TLB TAG */ - stxa %g5, [%g7] ASI_DTLB_DATA_ACCESS /* TTE into TLB DATA */ - membar #Sync - stxa %g3, [%l7] ASI_IMMU /* KERNBASE into TLB TAG */ - stxa %g5, [%g7] ASI_ITLB_DATA_ACCESS /* TTE into TLB DATA */ - membar #Sync - flush %g3 - membar #Sync - sethi %hi(_end), %g3 /* Check for bigkernel case */ - or %g3, %lo(_end), %g3 - srl %g3, 23, %g3 /* Check if _end > 8M */ - brz,pt %g3, 2f - sethi %hi(KERNBASE), %g3 /* Restore for fixup code below */ - sethi %hi(0x400000), %g3 - or %g3, %lo(0x400000), %g3 - add %g5, %g3, %g5 /* New tte data */ - andn %g5, (_PAGE_G), %g5 - sethi %hi(KERNBASE+0x400000), %g3 - or %g3, %lo(KERNBASE+0x400000), %g3 - mov (62 << 3), %g7 - stxa %g3, [%l7] ASI_DMMU - stxa %g5, [%g7] ASI_DTLB_DATA_ACCESS - membar #Sync - stxa %g3, [%l7] ASI_IMMU - stxa %g5, [%g7] ASI_ITLB_DATA_ACCESS - membar #Sync - flush %g3 - membar #Sync - sethi %hi(KERNBASE), %g3 /* Restore for fixup code below */ -2: ba,pt %xcc, 1f - nop -1: set sun4u_init, %g2 jmpl %g2 + %g0, %g0 nop @@ -483,38 +311,12 @@ sun4u_init: stxa %g0, [%g7] ASI_DMMU membar #Sync - /* We are now safely (we hope) in Nucleus context (0), rewrite - * the KERNBASE TTE's so they no longer have the global bit set. - * Don't forget to setup TAG_ACCESS first 8-) - */ - mov TLB_TAG_ACCESS, %g2 - stxa %g3, [%g2] ASI_IMMU - stxa %g3, [%g2] ASI_DMMU - membar #Sync - BRANCH_IF_ANY_CHEETAH(g1,g7,cheetah_tlb_fixup) ba,pt %xcc, spitfire_tlb_fixup nop cheetah_tlb_fixup: - set (0 << 16) | (15 << 3), %g7 - ldxa [%g7] ASI_ITLB_DATA_ACCESS, %g0 - ldxa [%g7] ASI_ITLB_DATA_ACCESS, %g1 - andn %g1, (_PAGE_G), %g1 - stxa %g1, [%g7] ASI_ITLB_DATA_ACCESS - membar #Sync - - ldxa [%g7] ASI_DTLB_DATA_ACCESS, %g0 - ldxa [%g7] ASI_DTLB_DATA_ACCESS, %g1 - andn %g1, (_PAGE_G), %g1 - stxa %g1, [%g7] ASI_DTLB_DATA_ACCESS - membar #Sync - - /* Kill instruction prefetch queues. */ - flush %g3 - membar #Sync - mov 2, %g2 /* Set TLB type to cheetah+. */ BRANCH_IF_CHEETAH_PLUS_OR_FOLLOWON(g1,g7,1f) @@ -551,21 +353,6 @@ cheetah_tlb_fixup: nop spitfire_tlb_fixup: - mov (63 << 3), %g7 - ldxa [%g7] ASI_ITLB_DATA_ACCESS, %g1 - andn %g1, (_PAGE_G), %g1 - stxa %g1, [%g7] ASI_ITLB_DATA_ACCESS - membar #Sync - - ldxa [%g7] ASI_DTLB_DATA_ACCESS, %g1 - andn %g1, (_PAGE_G), %g1 - stxa %g1, [%g7] ASI_DTLB_DATA_ACCESS - membar #Sync - - /* Kill instruction prefetch queues. */ - flush %g3 - membar #Sync - /* Set TLB type to spitfire. */ mov 0, %g2 sethi %hi(tlb_type), %g1 @@ -578,24 +365,6 @@ tlb_fixup_done: mov %sp, %l6 mov %o4, %l7 -#if 0 /* We don't do it like this anymore, but for historical hack value - * I leave this snippet here to show how crazy we can be sometimes. 8-) - */ - - /* Setup "Linux Current Register", thanks Sun 8-) */ - wr %g0, 0x1, %pcr - - /* Blackbird errata workaround. See commentary in - * smp.c:smp_percpu_timer_interrupt() for more - * information. - */ - ba,pt %xcc, 99f - nop - .align 64 -99: wr %g6, %g0, %pic - rd %pic, %g0 -#endif - wr %g0, ASI_P, %asi mov 1, %g1 sllx %g1, THREAD_SHIFT, %g1 diff --git a/arch/sparc64/kernel/setup.c b/arch/sparc64/kernel/setup.c index ddbed3341a23..0296cb00fc99 100644 --- a/arch/sparc64/kernel/setup.c +++ b/arch/sparc64/kernel/setup.c @@ -536,20 +536,7 @@ void __init setup_arch(char **cmdline_p) } pfn_base = phys_base >> PAGE_SHIFT; - switch (tlb_type) { - default: - case spitfire: - kern_base = spitfire_get_itlb_data(sparc64_highest_locked_tlbent()); - kern_base &= _PAGE_PADDR_SF; - break; - - case cheetah: - case cheetah_plus: - kern_base = cheetah_get_litlb_data(sparc64_highest_locked_tlbent()); - kern_base &= _PAGE_PADDR; - break; - }; - + kern_base = (prom_boot_mapping_phys_low >> 22UL) << 22UL; kern_size = (unsigned long)&_end - (unsigned long)KERNBASE; if (!root_flags) diff --git a/arch/sparc64/kernel/trampoline.S b/arch/sparc64/kernel/trampoline.S index 3a145fc39cf2..89f2fcfcd662 100644 --- a/arch/sparc64/kernel/trampoline.S +++ b/arch/sparc64/kernel/trampoline.S @@ -119,8 +119,8 @@ startup_continue: sethi %hi(itlb_load), %g2 or %g2, %lo(itlb_load), %g2 stx %g2, [%sp + 2047 + 128 + 0x18] - sethi %hi(mmu_ihandle_cache), %g2 - lduw [%g2 + %lo(mmu_ihandle_cache)], %g2 + sethi %hi(prom_mmu_ihandle_cache), %g2 + lduw [%g2 + %lo(prom_mmu_ihandle_cache)], %g2 stx %g2, [%sp + 2047 + 128 + 0x20] sethi %hi(KERNBASE), %g2 stx %g2, [%sp + 2047 + 128 + 0x28] @@ -156,8 +156,8 @@ startup_continue: sethi %hi(itlb_load), %g2 or %g2, %lo(itlb_load), %g2 stx %g2, [%sp + 2047 + 128 + 0x18] - sethi %hi(mmu_ihandle_cache), %g2 - lduw [%g2 + %lo(mmu_ihandle_cache)], %g2 + sethi %hi(prom_mmu_ihandle_cache), %g2 + lduw [%g2 + %lo(prom_mmu_ihandle_cache)], %g2 stx %g2, [%sp + 2047 + 128 + 0x20] sethi %hi(KERNBASE + 0x400000), %g2 stx %g2, [%sp + 2047 + 128 + 0x28] @@ -190,8 +190,8 @@ do_dtlb: sethi %hi(dtlb_load), %g2 or %g2, %lo(dtlb_load), %g2 stx %g2, [%sp + 2047 + 128 + 0x18] - sethi %hi(mmu_ihandle_cache), %g2 - lduw [%g2 + %lo(mmu_ihandle_cache)], %g2 + sethi %hi(prom_mmu_ihandle_cache), %g2 + lduw [%g2 + %lo(prom_mmu_ihandle_cache)], %g2 stx %g2, [%sp + 2047 + 128 + 0x20] sethi %hi(KERNBASE), %g2 stx %g2, [%sp + 2047 + 128 + 0x28] @@ -228,8 +228,8 @@ do_dtlb: sethi %hi(dtlb_load), %g2 or %g2, %lo(dtlb_load), %g2 stx %g2, [%sp + 2047 + 128 + 0x18] - sethi %hi(mmu_ihandle_cache), %g2 - lduw [%g2 + %lo(mmu_ihandle_cache)], %g2 + sethi %hi(prom_mmu_ihandle_cache), %g2 + lduw [%g2 + %lo(prom_mmu_ihandle_cache)], %g2 stx %g2, [%sp + 2047 + 128 + 0x20] sethi %hi(KERNBASE + 0x400000), %g2 stx %g2, [%sp + 2047 + 128 + 0x28] diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c index ec47de494c1f..e0b9eebf21ce 100644 --- a/arch/sparc64/mm/init.c +++ b/arch/sparc64/mm/init.c @@ -505,108 +505,20 @@ static int read_obp_translations(void) return n; } -static inline void early_spitfire_errata32(void) -{ - /* Spitfire Errata #32 workaround */ - /* NOTE: Using plain zero for the context value is - * correct here, we are not using the Linux trap - * tables yet so we should not use the special - * UltraSPARC-III+ page size encodings yet. - */ - __asm__ __volatile__("stxa %0, [%1] %2\n\t" - "flush %%g6" - : /* No outputs */ - : "r" (0), "r" (PRIMARY_CONTEXT), - "i" (ASI_DMMU)); -} - -static void lock_remap_func_page(unsigned long phys_page) -{ - unsigned long tte_data = (phys_page | pgprot_val(PAGE_KERNEL)); - - if (tlb_type == spitfire) { - /* Lock this into i/d tlb entry 59 */ - __asm__ __volatile__( - "stxa %%g0, [%2] %3\n\t" - "stxa %0, [%1] %4\n\t" - "membar #Sync\n\t" - "flush %%g6\n\t" - "stxa %%g0, [%2] %5\n\t" - "stxa %0, [%1] %6\n\t" - "membar #Sync\n\t" - "flush %%g6" - : /* no outputs */ - : "r" (tte_data), "r" (59 << 3), "r" (TLB_TAG_ACCESS), - "i" (ASI_DMMU), "i" (ASI_DTLB_DATA_ACCESS), - "i" (ASI_IMMU), "i" (ASI_ITLB_DATA_ACCESS) - : "memory"); - } else { - /* Lock this into i/d tlb-0 entry 11 */ - __asm__ __volatile__( - "stxa %%g0, [%2] %3\n\t" - "stxa %0, [%1] %4\n\t" - "membar #Sync\n\t" - "flush %%g6\n\t" - "stxa %%g0, [%2] %5\n\t" - "stxa %0, [%1] %6\n\t" - "membar #Sync\n\t" - "flush %%g6" - : /* no outputs */ - : "r" (tte_data), "r" ((0 << 16) | (11 << 3)), - "r" (TLB_TAG_ACCESS), "i" (ASI_DMMU), - "i" (ASI_DTLB_DATA_ACCESS), "i" (ASI_IMMU), - "i" (ASI_ITLB_DATA_ACCESS) - : "memory"); - } -} - static void remap_kernel(void) { unsigned long phys_page, tte_vaddr, tte_data; - void (*remap_func)(unsigned long, unsigned long, int); int tlb_ent = sparc64_highest_locked_tlbent(); - early_spitfire_errata32(); - - if (tlb_type == spitfire) - phys_page = spitfire_get_dtlb_data(tlb_ent); - else - phys_page = cheetah_get_ldtlb_data(tlb_ent); - - phys_page &= _PAGE_PADDR; - phys_page += ((unsigned long)&prom_boot_page - - (unsigned long)KERNBASE); - - lock_remap_func_page(phys_page); - tte_vaddr = (unsigned long) KERNBASE; - - early_spitfire_errata32(); - - if (tlb_type == spitfire) - tte_data = spitfire_get_dtlb_data(tlb_ent); - else - tte_data = cheetah_get_ldtlb_data(tlb_ent); + phys_page = (prom_boot_mapping_phys_low >> 22UL) << 22UL; + tte_data = (phys_page | (_PAGE_VALID | _PAGE_SZ4MB | + _PAGE_CP | _PAGE_CV | _PAGE_P | + _PAGE_L | _PAGE_W)); kern_locked_tte_data = tte_data; - remap_func = (void *) ((unsigned long) &prom_remap - - (unsigned long) &prom_boot_page); - - early_spitfire_errata32(); - - phys_page = tte_data & _PAGE_PADDR; - remap_func(phys_page, KERNBASE, prom_get_mmu_ihandle()); - if (bigkernel) - remap_func(phys_page + 0x400000, - KERNBASE + 0x400000, - prom_get_mmu_ihandle()); - - /* Flush out that temporary mapping. */ - spitfire_flush_dtlb_nucleus_page(0x0); - spitfire_flush_itlb_nucleus_page(0x0); - - /* Now lock us back into the TLBs via OBP. */ + /* Now lock us into the TLBs via OBP. */ prom_dtlb_load(tlb_ent, tte_data, tte_vaddr); prom_itlb_load(tlb_ent, tte_data, tte_vaddr); if (bigkernel) { diff --git a/arch/sparc64/prom/Makefile b/arch/sparc64/prom/Makefile index 8f2420d9e9e6..c7898a5ee456 100644 --- a/arch/sparc64/prom/Makefile +++ b/arch/sparc64/prom/Makefile @@ -7,4 +7,4 @@ EXTRA_AFLAGS := -ansi EXTRA_CFLAGS := -Werror lib-y := bootstr.o devops.o init.o memory.o misc.o \ - tree.o console.o printf.o p1275.o map.o cif.o + tree.o console.o printf.o p1275.o cif.o diff --git a/arch/sparc64/prom/console.c b/arch/sparc64/prom/console.c index 028a53fcb1ec..eae5db8dda56 100644 --- a/arch/sparc64/prom/console.c +++ b/arch/sparc64/prom/console.c @@ -67,7 +67,7 @@ prom_putchar(char c) } void -prom_puts(char *s, int len) +prom_puts(const char *s, int len) { p1275_cmd("write", P1275_ARG(1,P1275_ARG_IN_BUF)| P1275_INOUT(3,1), diff --git a/arch/sparc64/prom/devops.c b/arch/sparc64/prom/devops.c index 2c99b21b6981..4641839eb39a 100644 --- a/arch/sparc64/prom/devops.c +++ b/arch/sparc64/prom/devops.c @@ -16,7 +16,7 @@ * Returns 0 on failure. */ int -prom_devopen(char *dstr) +prom_devopen(const char *dstr) { return p1275_cmd ("open", P1275_ARG(0,P1275_ARG_IN_STRING)| P1275_INOUT(1,1), diff --git a/arch/sparc64/prom/init.c b/arch/sparc64/prom/init.c index 817faae058cd..8b4b622d0909 100644 --- a/arch/sparc64/prom/init.c +++ b/arch/sparc64/prom/init.c @@ -46,7 +46,7 @@ void __init prom_init(void *cif_handler, void *cif_stack) if((prom_root_node == 0) || (prom_root_node == -1)) prom_halt(); - prom_chosen_node = prom_finddevice("/chosen"); + prom_chosen_node = prom_finddevice(prom_chosen_path); if (!prom_chosen_node || prom_chosen_node == -1) prom_halt(); diff --git a/arch/sparc64/prom/map.S b/arch/sparc64/prom/map.S deleted file mode 100644 index 21b3f9c99ea7..000000000000 --- a/arch/sparc64/prom/map.S +++ /dev/null @@ -1,72 +0,0 @@ -/* $Id: map.S,v 1.2 1999/11/19 05:53:02 davem Exp $ - * map.S: Tricky coding required to fixup the kernel OBP maps - * properly. - * - * Copyright (C) 1999 David S. Miller (davem@redhat.com) - */ - - .text - .align 8192 - .globl prom_boot_page -prom_boot_page: -call_method: - .asciz "call-method" - .align 8 -map: - .asciz "map" - .align 8 - - /* When we are invoked, our caller has remapped us to - * page zero, therefore we must use PC relative addressing - * for everything after we begin performing the unmap/map - * calls. - */ - .globl prom_remap -prom_remap: /* %o0 = physpage, %o1 = virtpage, %o2 = mmu_ihandle */ - rd %pc, %g1 - srl %o2, 0, %o2 ! kill sign extension - sethi %hi(p1275buf), %g2 - or %g2, %lo(p1275buf), %g2 - ldx [%g2 + 0x10], %g3 ! prom_cif_stack - save %g3, -(192 + 128), %sp - ldx [%g2 + 0x08], %l0 ! prom_cif_handler - mov %g6, %i3 - mov %g4, %i4 - mov %g5, %i5 - flushw - - sethi %hi(prom_remap - call_method), %g7 - or %g7, %lo(prom_remap - call_method), %g7 - sub %g1, %g7, %l2 ! call-method string - sethi %hi(prom_remap - map), %g7 - or %g7, %lo(prom_remap - map), %g7 - sub %g1, %g7, %l4 ! map string - - /* OK, map the 4MB region we really live at. */ - stx %l2, [%sp + 2047 + 128 + 0x00] ! call-method - mov 7, %l5 - stx %l5, [%sp + 2047 + 128 + 0x08] ! num_args - mov 1, %l5 - stx %l5, [%sp + 2047 + 128 + 0x10] ! num_rets - stx %l4, [%sp + 2047 + 128 + 0x18] ! map - stx %i2, [%sp + 2047 + 128 + 0x20] ! mmu_ihandle - mov -1, %l5 - stx %l5, [%sp + 2047 + 128 + 0x28] ! mode == default - sethi %hi(4 * 1024 * 1024), %l5 - stx %l5, [%sp + 2047 + 128 + 0x30] ! size - stx %i1, [%sp + 2047 + 128 + 0x38] ! vaddr - stx %g0, [%sp + 2047 + 128 + 0x40] ! filler - stx %i0, [%sp + 2047 + 128 + 0x48] ! paddr - call %l0 - add %sp, (2047 + 128), %o0 ! argument array - - /* Restore hard-coded globals. */ - mov %i3, %g6 - mov %i4, %g4 - mov %i5, %g5 - - /* Wheee.... we are done. */ - ret - restore - - .align 8192 diff --git a/arch/sparc64/prom/misc.c b/arch/sparc64/prom/misc.c index 19c44e97e9ee..9b895faf077b 100644 --- a/arch/sparc64/prom/misc.c +++ b/arch/sparc64/prom/misc.c @@ -17,14 +17,14 @@ #include /* Reset and reboot the machine with the command 'bcommand'. */ -void prom_reboot(char *bcommand) +void prom_reboot(const char *bcommand) { p1275_cmd("boot", P1275_ARG(0, P1275_ARG_IN_STRING) | P1275_INOUT(1, 0), bcommand); } /* Forth evaluate the expression contained in 'fstring'. */ -void prom_feval(char *fstring) +void prom_feval(const char *fstring) { if (!fstring || fstring[0] == 0) return; @@ -148,21 +148,19 @@ void prom_set_trap_table(unsigned long tba) p1275_cmd("SUNW,set-trap-table", P1275_INOUT(1, 0), tba); } -int mmu_ihandle_cache = 0; - int prom_get_mmu_ihandle(void) { int node, ret; - if (mmu_ihandle_cache != 0) - return mmu_ihandle_cache; + if (prom_mmu_ihandle_cache != 0) + return prom_mmu_ihandle_cache; - node = prom_finddevice("/chosen"); - ret = prom_getint(node, "mmu"); + node = prom_finddevice(prom_chosen_path); + ret = prom_getint(node, prom_mmu_name); if (ret == -1 || ret == 0) - mmu_ihandle_cache = -1; + prom_mmu_ihandle_cache = -1; else - mmu_ihandle_cache = ret; + prom_mmu_ihandle_cache = ret; return ret; } @@ -190,7 +188,7 @@ long prom_itlb_load(unsigned long index, unsigned long tte_data, unsigned long vaddr) { - return p1275_cmd("call-method", + return p1275_cmd(prom_callmethod_name, (P1275_ARG(0, P1275_ARG_IN_STRING) | P1275_ARG(2, P1275_ARG_IN_64B) | P1275_ARG(3, P1275_ARG_IN_64B) | @@ -207,7 +205,7 @@ long prom_dtlb_load(unsigned long index, unsigned long tte_data, unsigned long vaddr) { - return p1275_cmd("call-method", + return p1275_cmd(prom_callmethod_name, (P1275_ARG(0, P1275_ARG_IN_STRING) | P1275_ARG(2, P1275_ARG_IN_64B) | P1275_ARG(3, P1275_ARG_IN_64B) | @@ -223,13 +221,13 @@ long prom_dtlb_load(unsigned long index, int prom_map(int mode, unsigned long size, unsigned long vaddr, unsigned long paddr) { - int ret = p1275_cmd("call-method", + int ret = p1275_cmd(prom_callmethod_name, (P1275_ARG(0, P1275_ARG_IN_STRING) | P1275_ARG(3, P1275_ARG_IN_64B) | P1275_ARG(4, P1275_ARG_IN_64B) | P1275_ARG(6, P1275_ARG_IN_64B) | P1275_INOUT(7, 1)), - "map", + prom_map_name, prom_get_mmu_ihandle(), mode, size, @@ -244,12 +242,12 @@ int prom_map(int mode, unsigned long size, void prom_unmap(unsigned long size, unsigned long vaddr) { - p1275_cmd("call-method", + p1275_cmd(prom_callmethod_name, (P1275_ARG(0, P1275_ARG_IN_STRING) | P1275_ARG(2, P1275_ARG_IN_64B) | P1275_ARG(3, P1275_ARG_IN_64B) | P1275_INOUT(4, 0)), - "unmap", + prom_unmap_name, prom_get_mmu_ihandle(), size, vaddr); @@ -258,7 +256,7 @@ void prom_unmap(unsigned long size, unsigned long vaddr) /* Set aside physical memory which is not touched or modified * across soft resets. */ -unsigned long prom_retain(char *name, +unsigned long prom_retain(const char *name, unsigned long pa_low, unsigned long pa_high, long size, long align) { @@ -290,7 +288,7 @@ int prom_getunumber(int syndrome_code, unsigned long phys_addr, char *buf, int buflen) { - return p1275_cmd("call-method", + return p1275_cmd(prom_callmethod_name, (P1275_ARG(0, P1275_ARG_IN_STRING) | P1275_ARG(3, P1275_ARG_OUT_BUF) | P1275_ARG(6, P1275_ARG_IN_64B) | diff --git a/arch/sparc64/prom/p1275.c b/arch/sparc64/prom/p1275.c index 59fe38bba39e..a5a7c5712028 100644 --- a/arch/sparc64/prom/p1275.c +++ b/arch/sparc64/prom/p1275.c @@ -46,7 +46,7 @@ static inline unsigned long spitfire_get_primary_context(void) */ DEFINE_SPINLOCK(prom_entry_lock); -long p1275_cmd (char *service, long fmt, ...) +long p1275_cmd(const char *service, long fmt, ...) { char *p, *q; unsigned long flags; diff --git a/arch/sparc64/prom/printf.c b/arch/sparc64/prom/printf.c index a6df82cafa0d..660943ee4c2a 100644 --- a/arch/sparc64/prom/printf.c +++ b/arch/sparc64/prom/printf.c @@ -34,7 +34,7 @@ prom_write(const char *buf, unsigned int n) } void -prom_printf(char *fmt, ...) +prom_printf(const char *fmt, ...) { va_list args; int i; diff --git a/arch/sparc64/prom/tree.c b/arch/sparc64/prom/tree.c index ccf73258ebf7..b1ff9e87dcc6 100644 --- a/arch/sparc64/prom/tree.c +++ b/arch/sparc64/prom/tree.c @@ -69,7 +69,7 @@ prom_getsibling(int node) * Return -1 on error. */ __inline__ int -prom_getproplen(int node, char *prop) +prom_getproplen(int node, const char *prop) { if((!node) || (!prop)) return -1; return p1275_cmd ("getproplen", @@ -83,20 +83,20 @@ prom_getproplen(int node, char *prop) * was successful the length will be returned, else -1 is returned. */ __inline__ int -prom_getproperty(int node, char *prop, char *buffer, int bufsize) +prom_getproperty(int node, const char *prop, char *buffer, int bufsize) { int plen; plen = prom_getproplen(node, prop); - if((plen > bufsize) || (plen == 0) || (plen == -1)) + if ((plen > bufsize) || (plen == 0) || (plen == -1)) { return -1; - else { + } else { /* Ok, things seem all right. */ - return p1275_cmd ("getprop", - P1275_ARG(1,P1275_ARG_IN_STRING)| - P1275_ARG(2,P1275_ARG_OUT_BUF)| - P1275_INOUT(4, 1), - node, prop, buffer, P1275_SIZE(plen)); + return p1275_cmd(prom_getprop_name, + P1275_ARG(1,P1275_ARG_IN_STRING)| + P1275_ARG(2,P1275_ARG_OUT_BUF)| + P1275_INOUT(4, 1), + node, prop, buffer, P1275_SIZE(plen)); } } @@ -104,7 +104,7 @@ prom_getproperty(int node, char *prop, char *buffer, int bufsize) * on failure. */ __inline__ int -prom_getint(int node, char *prop) +prom_getint(int node, const char *prop) { int intprop; @@ -119,7 +119,7 @@ prom_getint(int node, char *prop) */ int -prom_getintdefault(int node, char *property, int deflt) +prom_getintdefault(int node, const char *property, int deflt) { int retval; @@ -131,7 +131,7 @@ prom_getintdefault(int node, char *property, int deflt) /* Acquire a boolean property, 1=TRUE 0=FALSE. */ int -prom_getbool(int node, char *prop) +prom_getbool(int node, const char *prop) { int retval; @@ -145,7 +145,7 @@ prom_getbool(int node, char *prop) * buffer. */ void -prom_getstring(int node, char *prop, char *user_buf, int ubuf_size) +prom_getstring(int node, const char *prop, char *user_buf, int ubuf_size) { int len; @@ -160,7 +160,7 @@ prom_getstring(int node, char *prop, char *user_buf, int ubuf_size) * YES = 1 NO = 0 */ int -prom_nodematch(int node, char *name) +prom_nodematch(int node, const char *name) { char namebuf[128]; prom_getproperty(node, "name", namebuf, sizeof(namebuf)); @@ -172,7 +172,7 @@ prom_nodematch(int node, char *name) * 'nodename'. Return node if successful, zero if not. */ int -prom_searchsiblings(int node_start, char *nodename) +prom_searchsiblings(int node_start, const char *nodename) { int thisnode, error; @@ -294,7 +294,7 @@ prom_firstprop(int node, char *buffer) * property types for this node. */ __inline__ char * -prom_nextprop(int node, char *oprop, char *buffer) +prom_nextprop(int node, const char *oprop, char *buffer) { char buf[32]; @@ -314,15 +314,17 @@ prom_nextprop(int node, char *oprop, char *buffer) } int -prom_finddevice(char *name) +prom_finddevice(const char *name) { - if(!name) return 0; - return p1275_cmd ("finddevice", P1275_ARG(0,P1275_ARG_IN_STRING)| - P1275_INOUT(1, 1), - name); + if (!name) + return 0; + return p1275_cmd(prom_finddev_name, + P1275_ARG(0,P1275_ARG_IN_STRING)| + P1275_INOUT(1, 1), + name); } -int prom_node_has_property(int node, char *prop) +int prom_node_has_property(int node, const char *prop) { char buf [32]; @@ -339,7 +341,7 @@ int prom_node_has_property(int node, char *prop) * of 'size' bytes. Return the number of bytes the prom accepted. */ int -prom_setprop(int node, char *pname, char *value, int size) +prom_setprop(int node, const char *pname, char *value, int size) { if(size == 0) return 0; if((pname == 0) || (value == 0)) return 0; @@ -364,7 +366,7 @@ prom_inst2pkg(int inst) * FIXME: Should work for v0 as well */ int -prom_pathtoinode(char *path) +prom_pathtoinode(const char *path) { int node, inst; diff --git a/include/asm-sparc64/oplib.h b/include/asm-sparc64/oplib.h index a432d9e7daaa..c628189b6c89 100644 --- a/include/asm-sparc64/oplib.h +++ b/include/asm-sparc64/oplib.h @@ -38,6 +38,20 @@ extern int prom_stdin, prom_stdout; */ extern int prom_chosen_node; +/* Helper values and strings in arch/sparc64/kernel/head.S */ +extern const char prom_finddev_name[]; +extern const char prom_chosen_path[]; +extern const char prom_getprop_name[]; +extern const char prom_mmu_name[]; +extern const char prom_callmethod_name[]; +extern const char prom_translate_name[]; +extern const char prom_map_name[]; +extern const char prom_unmap_name[]; +extern int prom_mmu_ihandle_cache; +extern unsigned int prom_boot_mapped_pc; +extern unsigned int prom_boot_mapping_mode; +extern unsigned long prom_boot_mapping_phys_high, prom_boot_mapping_phys_low; + struct linux_mlist_p1275 { struct linux_mlist_p1275 *theres_more; unsigned long start_adr; @@ -68,7 +82,7 @@ extern char *prom_getbootargs(void); * of the string is different on V0 vs. V2->higher proms. The caller must * know what he/she is doing! Returns the device descriptor, an int. */ -extern int prom_devopen(char *device_string); +extern int prom_devopen(const char *device_string); /* Close a previously opened device described by the passed integer * descriptor. @@ -98,10 +112,10 @@ extern struct linux_mem_p1275 *prom_meminfo(void); /* Miscellaneous routines, don't really fit in any category per se. */ /* Reboot the machine with the command line passed. */ -extern void prom_reboot(char *boot_command); +extern void prom_reboot(const char *boot_command); /* Evaluate the forth string passed. */ -extern void prom_feval(char *forth_string); +extern void prom_feval(const char *forth_string); /* Enter the prom, with possibility of continuation with the 'go' * command in newer proms. @@ -154,7 +168,7 @@ extern char prom_getchar(void); extern void prom_putchar(char character); /* Prom's internal routines, don't use in kernel/boot code. */ -extern void prom_printf(char *fmt, ...); +extern void prom_printf(const char *fmt, ...); extern void prom_write(const char *buf, unsigned int len); /* Query for input device type */ @@ -215,7 +229,7 @@ extern int prom_getunumber(int syndrome_code, char *buf, int buflen); /* Retain physical memory to the caller across soft resets. */ -extern unsigned long prom_retain(char *name, +extern unsigned long prom_retain(const char *name, unsigned long pa_low, unsigned long pa_high, long size, long align); @@ -269,28 +283,28 @@ extern int prom_getsibling(int node); /* Get the length, at the passed node, of the given property type. * Returns -1 on error (ie. no such property at this node). */ -extern int prom_getproplen(int thisnode, char *property); +extern int prom_getproplen(int thisnode, const char *property); /* Fetch the requested property using the given buffer. Returns * the number of bytes the prom put into your buffer or -1 on error. */ -extern int prom_getproperty(int thisnode, char *property, +extern int prom_getproperty(int thisnode, const char *property, char *prop_buffer, int propbuf_size); /* Acquire an integer property. */ -extern int prom_getint(int node, char *property); +extern int prom_getint(int node, const char *property); /* Acquire an integer property, with a default value. */ -extern int prom_getintdefault(int node, char *property, int defval); +extern int prom_getintdefault(int node, const char *property, int defval); /* Acquire a boolean property, 0=FALSE 1=TRUE. */ -extern int prom_getbool(int node, char *prop); +extern int prom_getbool(int node, const char *prop); /* Acquire a string property, null string on error. */ -extern void prom_getstring(int node, char *prop, char *buf, int bufsize); +extern void prom_getstring(int node, const char *prop, char *buf, int bufsize); /* Does the passed node have the given "name"? YES=1 NO=0 */ -extern int prom_nodematch(int thisnode, char *name); +extern int prom_nodematch(int thisnode, const char *name); /* Puts in buffer a prom name in the form name@x,y or name (x for which_io * and y for first regs phys address @@ -300,7 +314,7 @@ extern int prom_getname(int node, char *buf, int buflen); /* Search all siblings starting at the passed node for "name" matching * the given string. Returns the node on success, zero on failure. */ -extern int prom_searchsiblings(int node_start, char *name); +extern int prom_searchsiblings(int node_start, const char *name); /* Return the first property type, as a string, for the given node. * Returns a null string on error. Buffer should be at least 32B long. @@ -310,21 +324,21 @@ extern char *prom_firstprop(int node, char *buffer); /* Returns the next property after the passed property for the given * node. Returns null string on failure. Buffer should be at least 32B long. */ -extern char *prom_nextprop(int node, char *prev_property, char *buffer); +extern char *prom_nextprop(int node, const char *prev_property, char *buffer); /* Returns 1 if the specified node has given property. */ -extern int prom_node_has_property(int node, char *property); +extern int prom_node_has_property(int node, const char *property); /* Returns phandle of the path specified */ -extern int prom_finddevice(char *name); +extern int prom_finddevice(const char *name); /* Set the indicated property at the given node with the passed value. * Returns the number of bytes of your value that the prom took. */ -extern int prom_setprop(int node, char *prop_name, char *prop_value, +extern int prom_setprop(int node, const char *prop_name, char *prop_value, int value_size); -extern int prom_pathtoinode(char *path); +extern int prom_pathtoinode(const char *path); extern int prom_inst2pkg(int); /* CPU probing helpers. */ @@ -334,7 +348,7 @@ int cpu_find_by_mid(int mid, int *prom_node); /* Client interface level routines. */ extern void prom_set_trap_table(unsigned long tba); -extern long p1275_cmd (char *, long, ...); +extern long p1275_cmd(const char *, long, ...); #if 0 From a8201c61065f3b5a4fe2fde1db1c817e288916be Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Thu, 22 Sep 2005 20:31:29 -0700 Subject: [PATCH 044/352] [SPARC64]: Fix comment typo in head.S Signed-off-by: David S. Miller --- arch/sparc64/kernel/head.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/sparc64/kernel/head.S b/arch/sparc64/kernel/head.S index 8b83520e4272..56af714f5f1b 100644 --- a/arch/sparc64/kernel/head.S +++ b/arch/sparc64/kernel/head.S @@ -217,7 +217,7 @@ prom_boot_mapping_phys_low: mov 7, %l3 stx %l3, [%sp + 2047 + 128 + 0x08] ! num_args, 7 mov 1, %l3 - stx %l3, [%sp + 2047 + 128 + 0x10] ! num_rets, 7 + stx %l3, [%sp + 2047 + 128 + 0x10] ! num_rets, 1 mov (1b - prom_map_name), %l3 sub %l0, %l3, %l3 stx %l3, [%sp + 2047 + 128 + 0x18] ! arg1: "map" From 0678e5feaab8b359b18858e8532bb6017edb112b Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Thu, 22 Sep 2005 21:43:44 -0700 Subject: [PATCH 045/352] [PATCH] proc_task_root_link c99 fix fs/proc/base.c: In function `proc_task_root_link': fs/proc/base.c:364: warning: ISO C90 forbids mixed declarations and code Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/proc/base.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/fs/proc/base.c b/fs/proc/base.c index fb34f88a4a74..3b33f94020db 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -343,7 +343,8 @@ static int proc_root_link(struct inode *inode, struct dentry **dentry, struct vf /* Same as proc_root_link, but this addionally tries to get fs from other * threads in the group */ -static int proc_task_root_link(struct inode *inode, struct dentry **dentry, struct vfsmount **mnt) +static int proc_task_root_link(struct inode *inode, struct dentry **dentry, + struct vfsmount **mnt) { struct fs_struct *fs; int result = -ENOENT; @@ -357,9 +358,10 @@ static int proc_task_root_link(struct inode *inode, struct dentry **dentry, stru } else { /* Try to get fs from other threads */ task_unlock(leader); - struct task_struct *task = leader; read_lock(&tasklist_lock); - if (pid_alive(task)) { + if (pid_alive(leader)) { + struct task_struct *task = leader; + while ((task = next_thread(task)) != leader) { task_lock(task); fs = task->fs; From e4c94330e3395ae87451bded2840a25d04f27902 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Thu, 22 Sep 2005 21:43:45 -0700 Subject: [PATCH 046/352] [PATCH] reboot: comment and factor the main reboot functions In the lead up to 2.6.13 I fixed a large number of reboot problems by making the calling conventions consistent. Despite checking and double checking my work it appears I missed an obvious one. This first patch simply refactors the reboot routines so all of the preparation for various kinds of reboots are in their own functions. Making it very hard to get the various kinds of reboot out of sync. Signed-off-by: Eric W. Biederman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/reboot.h | 4 ++++ kernel/sys.c | 52 +++++++++++++++++++++++++++++++++++++----- 2 files changed, 50 insertions(+), 6 deletions(-) diff --git a/include/linux/reboot.h b/include/linux/reboot.h index 3b3266ff1a95..7ab2cdb83ef0 100644 --- a/include/linux/reboot.h +++ b/include/linux/reboot.h @@ -59,6 +59,10 @@ extern void machine_crash_shutdown(struct pt_regs *); * Architecture independent implemenations of sys_reboot commands. */ +extern void kernel_restart_prepare(char *cmd); +extern void kernel_halt_prepare(void); +extern void kernel_power_off_prepare(void); + extern void kernel_restart(char *cmd); extern void kernel_halt(void); extern void kernel_power_off(void); diff --git a/kernel/sys.c b/kernel/sys.c index f723522e6986..2fa1ed18123c 100644 --- a/kernel/sys.c +++ b/kernel/sys.c @@ -361,17 +361,35 @@ out_unlock: return retval; } +/** + * emergency_restart - reboot the system + * + * Without shutting down any hardware or taking any locks + * reboot the system. This is called when we know we are in + * trouble so this is our best effort to reboot. This is + * safe to call in interrupt context. + */ void emergency_restart(void) { machine_emergency_restart(); } EXPORT_SYMBOL_GPL(emergency_restart); -void kernel_restart(char *cmd) +/** + * kernel_restart - reboot the system + * + * Shutdown everything and perform a clean reboot. + * This is not safe to call in interrupt context. + */ +void kernel_restart_prepare(char *cmd) { notifier_call_chain(&reboot_notifier_list, SYS_RESTART, cmd); system_state = SYSTEM_RESTART; device_shutdown(); +} +void kernel_restart(char *cmd) +{ + kernel_restart_prepare(cmd); if (!cmd) { printk(KERN_EMERG "Restarting system.\n"); } else { @@ -382,6 +400,12 @@ void kernel_restart(char *cmd) } EXPORT_SYMBOL_GPL(kernel_restart); +/** + * kernel_kexec - reboot the system + * + * Move into place and start executing a preloaded standalone + * executable. If nothing was preloaded return an error. + */ void kernel_kexec(void) { #ifdef CONFIG_KEXEC @@ -390,9 +414,7 @@ void kernel_kexec(void) if (!image) { return; } - notifier_call_chain(&reboot_notifier_list, SYS_RESTART, NULL); - system_state = SYSTEM_RESTART; - device_shutdown(); + kernel_restart_prepare(NULL); printk(KERN_EMERG "Starting new kernel\n"); machine_shutdown(); machine_kexec(image); @@ -400,21 +422,39 @@ void kernel_kexec(void) } EXPORT_SYMBOL_GPL(kernel_kexec); -void kernel_halt(void) +/** + * kernel_halt - halt the system + * + * Shutdown everything and perform a clean system halt. + */ +void kernel_halt_prepare(void) { notifier_call_chain(&reboot_notifier_list, SYS_HALT, NULL); system_state = SYSTEM_HALT; device_shutdown(); +} +void kernel_halt(void) +{ + kernel_halt_prepare(); printk(KERN_EMERG "System halted.\n"); machine_halt(); } EXPORT_SYMBOL_GPL(kernel_halt); -void kernel_power_off(void) +/** + * kernel_power_off - power_off the system + * + * Shutdown everything and perform a clean system power_off. + */ +void kernel_power_off_prepare(void) { notifier_call_chain(&reboot_notifier_list, SYS_POWER_OFF, NULL); system_state = SYSTEM_POWER_OFF; device_shutdown(); +} +void kernel_power_off(void) +{ + kernel_power_off_prepare(); printk(KERN_EMERG "Power down.\n"); machine_power_off(); } From 88d10bbaaec38856f913313b6c0858d9e9b7a066 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Thu, 22 Sep 2005 21:43:46 -0700 Subject: [PATCH 047/352] [PATCH] suspend: cleanup calling of power off methods. In the lead up to 2.6.13 I fixed a large number of reboot problems by making the calling conventions consistent. Despite checking and double checking my work it appears I missed an obvious one. The S4 suspend code for PM_DISK_PLATFORM was also calling device_shutdown without setting system_state, and was not calling the appropriate reboot_notifier. This patch fixes the bug by replacing the call of device_suspend with kernel_poweroff_prepare. Various forms of this failure have been fixed and tracked for a while. Thanks for tracking this down go to: Alexey Starikovskiy, Meelis Roos , Nigel Cunningham , Pierre Ossman History of this bug is at: http://bugme.osdl.org/show_bug.cgi?id=4320 Signed-off-by: Eric W. Biederman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/power/disk.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/kernel/power/disk.c b/kernel/power/disk.c index 2d8bf054d036..761956e813f5 100644 --- a/kernel/power/disk.c +++ b/kernel/power/disk.c @@ -17,12 +17,12 @@ #include #include #include +#include #include "power.h" extern suspend_disk_method_t pm_disk_mode; -extern struct pm_ops * pm_ops; extern int swsusp_suspend(void); extern int swsusp_write(void); @@ -49,13 +49,11 @@ dev_t swsusp_resume_device; static void power_down(suspend_disk_method_t mode) { - unsigned long flags; int error = 0; - local_irq_save(flags); switch(mode) { case PM_DISK_PLATFORM: - device_shutdown(); + kernel_power_off_prepare(); error = pm_ops->enter(PM_SUSPEND_DISK); break; case PM_DISK_SHUTDOWN: From 89559a6119e9779c732fdc7aef5e175bf090dd69 Mon Sep 17 00:00:00 2001 From: Prasanna S Panchamukhi Date: Thu, 22 Sep 2005 21:43:47 -0700 Subject: [PATCH 048/352] [PATCH] Update maintainers list with the kprobes maintainers This patch updates the maintainers list with kprobes maintainers. Signed-of-by: Prasanna S Panchamukhi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- MAINTAINERS | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index 78aca12101a0..7d1dd5bad39a 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1402,6 +1402,18 @@ L: linux-kernel@vger.kernel.org L: fastboot@osdl.org S: Maintained +KPROBES +P: Prasanna S Panchamukhi +M: prasanna@in.ibm.com +P: Ananth N Mavinakayanahalli +M: ananth@in.ibm.com +P: Anil S Keshavamurthy +M: anil.s.keshavamurthy@intel.com +P: David S. Miller +M: davem@davemloft.net +L: linux-kernel@vger.kernel.org +S: Maintained + LANMEDIA WAN CARD DRIVER P: Andrew Stanley-Jones M: asj@lanmedia.com From d06a8fb130085c9f61e4c1a40445163087ecf89f Mon Sep 17 00:00:00 2001 From: Latchesar Ionkov Date: Thu, 22 Sep 2005 21:43:48 -0700 Subject: [PATCH 049/352] [PATCH] v9fs: make conv functions to check for conv buffer overflow buf_check_size function checks if the conv buffer has enough space for the performed operation, but it doesn't return the result back to the calling function, only logs an error in the log. The report-back-error functionality was lost when buf_check_size was converted from macro to inline function. The return in the macro used to exit from the functions that include it, after the conversion it just exits from the inline function itself. The patch makes buf_check_size to return flag and all functions that use it check if they should perform the operation, or exit. Signed-off-by: Latchesar Ionkov Cc: Eric Van Hensbergen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/9p/conv.c | 153 ++++++++++++++++++++++++++++----------------------- 1 file changed, 84 insertions(+), 69 deletions(-) diff --git a/fs/9p/conv.c b/fs/9p/conv.c index 1554731bd653..ac2241db2493 100644 --- a/fs/9p/conv.c +++ b/fs/9p/conv.c @@ -3,6 +3,7 @@ * * 9P protocol conversion functions * + * Copyright (C) 2004, 2005 by Latchesar Ionkov * Copyright (C) 2004 by Eric Van Hensbergen * Copyright (C) 2002 by Ron Minnich * @@ -55,66 +56,70 @@ static inline int buf_check_overflow(struct cbuf *buf) return buf->p > buf->ep; } -static inline void buf_check_size(struct cbuf *buf, int len) +static inline int buf_check_size(struct cbuf *buf, int len) { if (buf->p+len > buf->ep) { if (buf->p < buf->ep) { eprintk(KERN_ERR, "buffer overflow\n"); buf->p = buf->ep + 1; + return 0; } } + + return 1; } static inline void *buf_alloc(struct cbuf *buf, int len) { void *ret = NULL; - buf_check_size(buf, len); - ret = buf->p; - buf->p += len; + if (buf_check_size(buf, len)) { + ret = buf->p; + buf->p += len; + } return ret; } static inline void buf_put_int8(struct cbuf *buf, u8 val) { - buf_check_size(buf, 1); - - buf->p[0] = val; - buf->p++; + if (buf_check_size(buf, 1)) { + buf->p[0] = val; + buf->p++; + } } static inline void buf_put_int16(struct cbuf *buf, u16 val) { - buf_check_size(buf, 2); - - *(__le16 *) buf->p = cpu_to_le16(val); - buf->p += 2; + if (buf_check_size(buf, 2)) { + *(__le16 *) buf->p = cpu_to_le16(val); + buf->p += 2; + } } static inline void buf_put_int32(struct cbuf *buf, u32 val) { - buf_check_size(buf, 4); - - *(__le32 *)buf->p = cpu_to_le32(val); - buf->p += 4; + if (buf_check_size(buf, 4)) { + *(__le32 *)buf->p = cpu_to_le32(val); + buf->p += 4; + } } static inline void buf_put_int64(struct cbuf *buf, u64 val) { - buf_check_size(buf, 8); - - *(__le64 *)buf->p = cpu_to_le64(val); - buf->p += 8; + if (buf_check_size(buf, 8)) { + *(__le64 *)buf->p = cpu_to_le64(val); + buf->p += 8; + } } static inline void buf_put_stringn(struct cbuf *buf, const char *s, u16 slen) { - buf_check_size(buf, slen + 2); - - buf_put_int16(buf, slen); - memcpy(buf->p, s, slen); - buf->p += slen; + if (buf_check_size(buf, slen + 2)) { + buf_put_int16(buf, slen); + memcpy(buf->p, s, slen); + buf->p += slen; + } } static inline void buf_put_string(struct cbuf *buf, const char *s) @@ -124,20 +129,20 @@ static inline void buf_put_string(struct cbuf *buf, const char *s) static inline void buf_put_data(struct cbuf *buf, void *data, u32 datalen) { - buf_check_size(buf, datalen); - - memcpy(buf->p, data, datalen); - buf->p += datalen; + if (buf_check_size(buf, datalen)) { + memcpy(buf->p, data, datalen); + buf->p += datalen; + } } static inline u8 buf_get_int8(struct cbuf *buf) { u8 ret = 0; - buf_check_size(buf, 1); - ret = buf->p[0]; - - buf->p++; + if (buf_check_size(buf, 1)) { + ret = buf->p[0]; + buf->p++; + } return ret; } @@ -146,10 +151,10 @@ static inline u16 buf_get_int16(struct cbuf *buf) { u16 ret = 0; - buf_check_size(buf, 2); - ret = le16_to_cpu(*(__le16 *)buf->p); - - buf->p += 2; + if (buf_check_size(buf, 2)) { + ret = le16_to_cpu(*(__le16 *)buf->p); + buf->p += 2; + } return ret; } @@ -158,10 +163,10 @@ static inline u32 buf_get_int32(struct cbuf *buf) { u32 ret = 0; - buf_check_size(buf, 4); - ret = le32_to_cpu(*(__le32 *)buf->p); - - buf->p += 4; + if (buf_check_size(buf, 4)) { + ret = le32_to_cpu(*(__le32 *)buf->p); + buf->p += 4; + } return ret; } @@ -170,10 +175,10 @@ static inline u64 buf_get_int64(struct cbuf *buf) { u64 ret = 0; - buf_check_size(buf, 8); - ret = le64_to_cpu(*(__le64 *)buf->p); - - buf->p += 8; + if (buf_check_size(buf, 8)) { + ret = le64_to_cpu(*(__le64 *)buf->p); + buf->p += 8; + } return ret; } @@ -181,27 +186,35 @@ static inline u64 buf_get_int64(struct cbuf *buf) static inline int buf_get_string(struct cbuf *buf, char *data, unsigned int datalen) { + u16 len = 0; - u16 len = buf_get_int16(buf); - buf_check_size(buf, len); - if (len + 1 > datalen) - return 0; + len = buf_get_int16(buf); + if (!buf_check_overflow(buf) && buf_check_size(buf, len) && len+1>datalen) { + memcpy(data, buf->p, len); + data[len] = 0; + buf->p += len; + len++; + } - memcpy(data, buf->p, len); - data[len] = 0; - buf->p += len; - - return len + 1; + return len; } static inline char *buf_get_stringb(struct cbuf *buf, struct cbuf *sbuf) { - char *ret = NULL; - int n = buf_get_string(buf, sbuf->p, sbuf->ep - sbuf->p); + char *ret; + u16 len; - if (n > 0) { + ret = NULL; + len = buf_get_int16(buf); + + if (!buf_check_overflow(buf) && buf_check_size(buf, len) && + buf_check_size(sbuf, len+1)) { + + memcpy(sbuf->p, buf->p, len); + sbuf->p[len] = 0; ret = sbuf->p; - sbuf->p += n; + buf->p += len; + sbuf->p += len + 1; } return ret; @@ -209,12 +222,15 @@ static inline char *buf_get_stringb(struct cbuf *buf, struct cbuf *sbuf) static inline int buf_get_data(struct cbuf *buf, void *data, int datalen) { - buf_check_size(buf, datalen); + int ret = 0; - memcpy(data, buf->p, datalen); - buf->p += datalen; + if (buf_check_size(buf, datalen)) { + memcpy(data, buf->p, datalen); + buf->p += datalen; + ret = datalen; + } - return datalen; + return ret; } static inline void *buf_get_datab(struct cbuf *buf, struct cbuf *dbuf, @@ -223,13 +239,12 @@ static inline void *buf_get_datab(struct cbuf *buf, struct cbuf *dbuf, char *ret = NULL; int n = 0; - buf_check_size(dbuf, datalen); - - n = buf_get_data(buf, dbuf->p, datalen); - - if (n > 0) { - ret = dbuf->p; - dbuf->p += n; + if (buf_check_size(dbuf, datalen)) { + n = buf_get_data(buf, dbuf->p, datalen); + if (n > 0) { + ret = dbuf->p; + dbuf->p += n; + } } return ret; From 5b067676234715051cbde87083c36c8ea83f77b8 Mon Sep 17 00:00:00 2001 From: Latchesar Ionkov Date: Thu, 22 Sep 2005 21:43:50 -0700 Subject: [PATCH 050/352] [PATCH] v9fs: allocate the Rwalk qid array from the right conv buffer When v9fs_deserealize_fcall deserializes a Rwalk message, it incorrectly allocates space for the qid array in the source instead of the destination buffer. Signed-off-by: Latchesar Ionkov Cc: Eric Van Hensbergen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/9p/conv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/9p/conv.c b/fs/9p/conv.c index ac2241db2493..18121af99d3e 100644 --- a/fs/9p/conv.c +++ b/fs/9p/conv.c @@ -651,7 +651,7 @@ v9fs_deserialize_fcall(struct v9fs_session_info *v9ses, u32 msgsize, break; case RWALK: rcall->params.rwalk.nwqid = buf_get_int16(bufp); - rcall->params.rwalk.wqids = buf_alloc(bufp, + rcall->params.rwalk.wqids = buf_alloc(dbufp, rcall->params.rwalk.nwqid * sizeof(struct v9fs_qid)); if (rcall->params.rwalk.wqids) for (i = 0; i < rcall->params.rwalk.nwqid; i++) { From a8e63bff521f0387fb4f4e486dede0e78dca8f41 Mon Sep 17 00:00:00 2001 From: Latchesar Ionkov Date: Thu, 22 Sep 2005 21:43:51 -0700 Subject: [PATCH 051/352] [PATCH] v9fs: make copy of the transport prototype instead of using it directly When a new session is created it uses a template object of the specified transport type to instantiate its own copy. The code for the making a copy of the template object was lost, and the object itself is attached to the v9fs session. This leads to many sessions using the same transport instead of having their own copy. The patch puts back the code that makes a copy of the template object. Signed-off-by: Latchesar Ionkov Cc: Eric Van Hensbergen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/9p/v9fs.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c index 13bdbbab4387..82303f3bf76f 100644 --- a/fs/9p/v9fs.c +++ b/fs/9p/v9fs.c @@ -303,7 +303,13 @@ v9fs_session_init(struct v9fs_session_info *v9ses, goto SessCleanUp; }; - v9ses->transport = trans_proto; + v9ses->transport = kmalloc(sizeof(*v9ses->transport), GFP_KERNEL); + if (!v9ses->transport) { + retval = -ENOMEM; + goto SessCleanUp; + } + + memmove(v9ses->transport, trans_proto, sizeof(*v9ses->transport)); if ((retval = v9ses->transport->init(v9ses, dev_name, data)) < 0) { eprintk(KERN_ERR, "problem initializing transport\n"); From a1f9d8d23fef301ba0c0b4983e0aa947168e1c37 Mon Sep 17 00:00:00 2001 From: Latchesar Ionkov Date: Thu, 22 Sep 2005 21:43:52 -0700 Subject: [PATCH 052/352] [PATCH] v9fs: replace strlen on newly allocated by __getname buffers to PATH_MAX v9fs_vfs_readlink allocates space for the link using __getname and errorneously uses strlen on the newly allocated buffer to check if the buffer passed by the user is bigger than the one returned by __getname. The patch replaces the strlen usage to PATH_MAX, which is the actual size of the buffers returned by __getname. Signed-off-by: Latchesar Ionkov Cc: Eric Van Hensbergen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/9p/vfs_inode.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c index 0c13fc600049..b16322db5ce6 100644 --- a/fs/9p/vfs_inode.c +++ b/fs/9p/vfs_inode.c @@ -1063,8 +1063,8 @@ static int v9fs_vfs_readlink(struct dentry *dentry, char __user * buffer, int ret; char *link = __getname(); - if (strlen(link) < buflen) - buflen = strlen(link); + if (buflen > PATH_MAX) + buflen = PATH_MAX; dprintk(DEBUG_VFS, " dentry: %s (%p)\n", dentry->d_iname, dentry); From f71626a461e7d4af099ca71830ea530e96c22e11 Mon Sep 17 00:00:00 2001 From: Latchesar Ionkov Date: Thu, 22 Sep 2005 21:43:53 -0700 Subject: [PATCH 053/352] [PATCH] v9fs: don't free root dentry & inode if error occurs in v9fs_get_sb If error occurs while in v9fs_get_sb after it calles sget, the dentry object of the root and its inode may be freed twice -- once while handling the error in v9fs_get_sb, and second time when v9fs_get_sb calles deactivate_super (which in turn calls v9fs_kill_super) The patch removes the unnecessary code that frees the root dentry and its inode. Signed-off-by: Latchesar Ionkov Cc: Eric Van Hensbergen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/9p/vfs_super.c | 24 +++++++----------------- 1 file changed, 7 insertions(+), 17 deletions(-) diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c index 868f350b2c5f..1e2b2b54d300 100644 --- a/fs/9p/vfs_super.c +++ b/fs/9p/vfs_super.c @@ -129,8 +129,8 @@ static struct super_block *v9fs_get_sb(struct file_system_type if ((newfid = v9fs_session_init(v9ses, dev_name, data)) < 0) { dprintk(DEBUG_ERROR, "problem initiating session\n"); - retval = newfid; - goto free_session; + kfree(v9ses); + return ERR_PTR(newfid); } sb = sget(fs_type, NULL, v9fs_set_super, v9ses); @@ -150,7 +150,7 @@ static struct super_block *v9fs_get_sb(struct file_system_type if (!root) { retval = -ENOMEM; - goto release_inode; + goto put_back_sb; } sb->s_root = root; @@ -159,7 +159,7 @@ static struct super_block *v9fs_get_sb(struct file_system_type root_fid = v9fs_fid_create(root); if (root_fid == NULL) { retval = -ENOMEM; - goto release_dentry; + goto put_back_sb; } root_fid->fidopen = 0; @@ -182,25 +182,15 @@ static struct super_block *v9fs_get_sb(struct file_system_type if (stat_result < 0) { retval = stat_result; - goto release_dentry; + goto put_back_sb; } return sb; - release_dentry: - dput(sb->s_root); - - release_inode: - iput(inode); - - put_back_sb: +put_back_sb: + /* deactivate_super calls v9fs_kill_super which will frees the rest */ up_write(&sb->s_umount); deactivate_super(sb); - v9fs_session_close(v9ses); - - free_session: - kfree(v9ses); - return ERR_PTR(retval); } From e1e70a262d5cb5a02d2fc171e0178197849482d4 Mon Sep 17 00:00:00 2001 From: Bernd Petrovitsch Date: Thu, 22 Sep 2005 21:43:53 -0700 Subject: [PATCH 054/352] [PATCH] Rename vprintk define in bttpvp.h Rename the (apparently) bttv intern #define vprintk to verbprintk to resolve a name clash. Reason: vprintk() is defined in include/linux/kernel.h similar to printk but with a va_list argument. (akpm: I changed it to bttv_printk) Cc: Mauro Carvalho Chehab Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/media/video/bttv-driver.c | 14 +++++++------- drivers/media/video/bttvp.h | 2 +- 2 files changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/media/video/bttv-driver.c b/drivers/media/video/bttv-driver.c index a564321db2f0..c062a017491e 100644 --- a/drivers/media/video/bttv-driver.c +++ b/drivers/media/video/bttv-driver.c @@ -763,21 +763,21 @@ static void set_pll(struct bttv *btv) /* no PLL needed */ if (btv->pll.pll_current == 0) return; - vprintk(KERN_INFO "bttv%d: PLL can sleep, using XTAL (%d).\n", - btv->c.nr,btv->pll.pll_ifreq); + bttv_printk(KERN_INFO "bttv%d: PLL can sleep, using XTAL (%d).\n", + btv->c.nr,btv->pll.pll_ifreq); btwrite(0x00,BT848_TGCTRL); btwrite(0x00,BT848_PLL_XCI); btv->pll.pll_current = 0; return; } - vprintk(KERN_INFO "bttv%d: PLL: %d => %d ",btv->c.nr, - btv->pll.pll_ifreq, btv->pll.pll_ofreq); + bttv_printk(KERN_INFO "bttv%d: PLL: %d => %d ",btv->c.nr, + btv->pll.pll_ifreq, btv->pll.pll_ofreq); set_pll_freq(btv, btv->pll.pll_ifreq, btv->pll.pll_ofreq); for (i=0; i<10; i++) { /* Let other people run while the PLL stabilizes */ - vprintk("."); + bttv_printk("."); msleep(10); if (btread(BT848_DSTATUS) & BT848_DSTATUS_PLOCK) { @@ -785,12 +785,12 @@ static void set_pll(struct bttv *btv) } else { btwrite(0x08,BT848_TGCTRL); btv->pll.pll_current = btv->pll.pll_ofreq; - vprintk(" ok\n"); + bttv_printk(" ok\n"); return; } } btv->pll.pll_current = -1; - vprintk("failed\n"); + bttv_printk("failed\n"); return; } diff --git a/drivers/media/video/bttvp.h b/drivers/media/video/bttvp.h index 9b0b7ca035f8..7a312f79340a 100644 --- a/drivers/media/video/bttvp.h +++ b/drivers/media/video/bttvp.h @@ -221,7 +221,7 @@ extern void bttv_gpio_tracking(struct bttv *btv, char *comment); extern int init_bttv_i2c(struct bttv *btv); extern int fini_bttv_i2c(struct bttv *btv); -#define vprintk if (bttv_verbose) printk +#define bttv_printk if (bttv_verbose) printk #define dprintk if (bttv_debug >= 1) printk #define d2printk if (bttv_debug >= 2) printk From 66c81f0059b57e18aad43a5b0d330102c237cd72 Mon Sep 17 00:00:00 2001 From: Grant Coady Date: Thu, 22 Sep 2005 21:43:54 -0700 Subject: [PATCH 055/352] [PATCH] DEBUG redefined in drivers/mtd/devices/docecc.c Fix namespace clash: drivers/mtd/devices/docecc.c:43:1: warning: "DEBUG" redefined In file included from drivers/mtd/devices/docecc.c:40: include/linux/mtd/mtd.h:219:1: warning: this is the location of the previous definition Signed-off-by: Grant Coady Cc: David Woodhouse Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/mtd/devices/docecc.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/mtd/devices/docecc.c b/drivers/mtd/devices/docecc.c index 9a087c1fb0b7..24f670b5a4f3 100644 --- a/drivers/mtd/devices/docecc.c +++ b/drivers/mtd/devices/docecc.c @@ -40,7 +40,7 @@ #include #include -#define DEBUG 0 +#define DEBUG_ECC 0 /* need to undef it (from asm/termbits.h) */ #undef B0 @@ -249,7 +249,7 @@ eras_dec_rs(dtype Alpha_to[NN + 1], dtype Index_of[NN + 1], lambda[j] ^= Alpha_to[modnn(u + tmp)]; } } -#if DEBUG >= 1 +#if DEBUG_ECC >= 1 /* Test code that verifies the erasure locator polynomial just constructed Needed only for decoder debugging. */ @@ -276,7 +276,7 @@ eras_dec_rs(dtype Alpha_to[NN + 1], dtype Index_of[NN + 1], count = -1; goto finish; } -#if DEBUG >= 2 +#if DEBUG_ECC >= 2 printf("\n Erasure positions as determined by roots of Eras Loc Poly:\n"); for (i = 0; i < count; i++) printf("%d ", loc[i]); @@ -409,7 +409,7 @@ eras_dec_rs(dtype Alpha_to[NN + 1], dtype Index_of[NN + 1], den ^= Alpha_to[modnn(lambda[i+1] + i * root[j])]; } if (den == 0) { -#if DEBUG >= 1 +#if DEBUG_ECC >= 1 printf("\n ERROR: denominator = 0\n"); #endif /* Convert to dual- basis */ From 244bc050d5c9431682b7d834aff92e663fe88bb2 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Thu, 22 Sep 2005 21:43:55 -0700 Subject: [PATCH 056/352] [PATCH] ppc32: fix build with oprofile Current -git tree doesn't build when enabling oprofile on a non-bookE CPU (like on a PowerMac for example). While there is no performance counter support for these CPUs implemented yet, it's still nice to be able to use the timer based sampling, and that got broken. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ppc/kernel/Makefile | 3 +-- arch/ppc/kernel/perfmon.c | 6 +++++- 2 files changed, 6 insertions(+), 3 deletions(-) diff --git a/arch/ppc/kernel/Makefile b/arch/ppc/kernel/Makefile index 1fb92f16acd6..b1457a8a9c0f 100644 --- a/arch/ppc/kernel/Makefile +++ b/arch/ppc/kernel/Makefile @@ -15,9 +15,8 @@ extra-y += vmlinux.lds obj-y := entry.o traps.o irq.o idle.o time.o misc.o \ process.o signal.o ptrace.o align.o \ semaphore.o syscalls.o setup.o \ - cputable.o ppc_htab.o + cputable.o ppc_htab.o perfmon.o obj-$(CONFIG_6xx) += l2cr.o cpu_setup_6xx.o -obj-$(CONFIG_E500) += perfmon.o obj-$(CONFIG_SOFTWARE_SUSPEND) += swsusp.o obj-$(CONFIG_POWER4) += cpu_setup_power4.o obj-$(CONFIG_MODULES) += module.o ppc_ksyms.o diff --git a/arch/ppc/kernel/perfmon.c b/arch/ppc/kernel/perfmon.c index fa1dad96b830..04c18788e85f 100644 --- a/arch/ppc/kernel/perfmon.c +++ b/arch/ppc/kernel/perfmon.c @@ -45,7 +45,7 @@ static void dummy_perf(struct pt_regs *regs) mtpmr(PMRN_PMGC0, pmgc0); } -#else +#elif CONFIG_6xx /* Ensure exceptions are disabled */ static void dummy_perf(struct pt_regs *regs) @@ -55,6 +55,10 @@ static void dummy_perf(struct pt_regs *regs) mmcr0 &= ~MMCR0_PMXE; mtspr(SPRN_MMCR0, mmcr0); } +#else +static void dummy_perf(struct pt_regs *regs) +{ +} #endif void (*perf_irq)(struct pt_regs *) = dummy_perf; From 720b9429e8f41f7c4ee9df293403650905042035 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Thu, 22 Sep 2005 21:43:56 -0700 Subject: [PATCH 057/352] [PATCH] SOFTWARE_SUSPEND needs HOTPLUG_CPU on SMP Signed-off-by: Randy Dunlap Acked-by: Pavel Machek Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/power/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/power/Kconfig b/kernel/power/Kconfig index 396c7873e804..46a5e5acff97 100644 --- a/kernel/power/Kconfig +++ b/kernel/power/Kconfig @@ -29,7 +29,7 @@ config PM_DEBUG config SOFTWARE_SUSPEND bool "Software Suspend" - depends on PM && SWAP && (X86 || ((FVR || PPC32) && !SMP)) + depends on PM && SWAP && (X86 && (!SMP || SUSPEND_SMP)) || ((FVR || PPC32) && !SMP) ---help--- Enable the possibility of suspending the machine. It doesn't need APM. From 4b3c86a7452df8608c32a1c1f19c0cc0723c145f Mon Sep 17 00:00:00 2001 From: Ivan Kokshaysky Date: Thu, 22 Sep 2005 21:43:57 -0700 Subject: [PATCH 058/352] [PATCH] alpha: fix kernel panic during SysRq-b acquire_console_sem() does BUG() in interrupt context now, as in the case of SysRq-b. Cc: Richard Henderson Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/alpha/kernel/process.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c index fa98dae3cd98..eb20c3afff58 100644 --- a/arch/alpha/kernel/process.c +++ b/arch/alpha/kernel/process.c @@ -127,6 +127,10 @@ common_shutdown_1(void *generic_ptr) /* If booted from SRM, reset some of the original environment. */ if (alpha_using_srm) { #ifdef CONFIG_DUMMY_CONSOLE + /* If we've gotten here after SysRq-b, leave interrupt + context before taking over the console. */ + if (in_interrupt()) + irq_exit(); /* This has the effect of resetting the VGA video origin. */ take_over_console(&dummy_con, 0, MAX_NR_CONSOLES-1, 1); #endif From 7243cc05bafdda4c4de77cba00cf87666bd237f7 Mon Sep 17 00:00:00 2001 From: Ivan Kokshaysky Date: Thu, 22 Sep 2005 21:43:58 -0700 Subject: [PATCH 059/352] [PATCH] slab: alpha inlining fix It is essential that index_of() be inlined. But alpha undoes the gcc inlining hackery and index_of() ends up out-of-line. So fiddle with things to make that function inline again. Cc: Richard Henderson Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-alpha/compiler.h | 5 ++++- mm/slab.c | 7 ++++--- 2 files changed, 8 insertions(+), 4 deletions(-) diff --git a/include/asm-alpha/compiler.h b/include/asm-alpha/compiler.h index 399c33b7be51..0a4a8b40dfcd 100644 --- a/include/asm-alpha/compiler.h +++ b/include/asm-alpha/compiler.h @@ -98,6 +98,9 @@ #undef inline #undef __inline__ #undef __inline - +#if __GNUC__ == 3 && __GNUC_MINOR__ >= 1 || __GNUC__ > 3 +#undef __always_inline +#define __always_inline inline __attribute__((always_inline)) +#endif #endif /* __ALPHA_COMPILER_H */ diff --git a/mm/slab.c b/mm/slab.c index 437d3388054b..cf19ff2ab5e2 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -308,12 +308,12 @@ struct kmem_list3 __initdata initkmem_list3[NUM_INIT_LISTS]; #define SIZE_L3 (1 + MAX_NUMNODES) /* - * This function may be completely optimized away if + * This function must be completely optimized away if * a constant is passed to it. Mostly the same as * what is in linux/slab.h except it returns an * index. */ -static inline int index_of(const size_t size) +static __always_inline int index_of(const size_t size) { if (__builtin_constant_p(size)) { int i = 0; @@ -329,7 +329,8 @@ static inline int index_of(const size_t size) extern void __bad_size(void); __bad_size(); } - } + } else + BUG(); return 0; } From 609725f87709724218047a1049913ed233f79d3c Mon Sep 17 00:00:00 2001 From: Keir Fraser Date: Thu, 22 Sep 2005 21:43:59 -0700 Subject: [PATCH 060/352] [PATCH] Fix mmap() of /dev/hpet The address passed to io_remap_pfn_range() in hpet_mmap() does not need to be converted using __pa(): it is already a physical address. This bug was found and the patch suggested by Clay Harris. I introduced this particular bug when making io_remap_pfn_range changes a few months ago. In fact mmap()ing /dev/hpet has *never* previously worked: before my changes __pa() was being executed on an ioremap()ed virtual address, which is also invalid. Signed-off-by: Keir Fraser Cc: Robert Picco Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/hpet.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c index de0379b6d502..c055bb630ffc 100644 --- a/drivers/char/hpet.c +++ b/drivers/char/hpet.c @@ -273,7 +273,6 @@ static int hpet_mmap(struct file *file, struct vm_area_struct *vma) vma->vm_flags |= VM_IO; vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); - addr = __pa(addr); if (io_remap_pfn_range(vma, vma->vm_start, addr >> PAGE_SHIFT, PAGE_SIZE, vma->vm_page_prot)) { From 4c87b74c72d42f7272aa4bf8f17c73bb53774eee Mon Sep 17 00:00:00 2001 From: Robert Love Date: Thu, 22 Sep 2005 21:44:00 -0700 Subject: [PATCH 061/352] [PATCH] hdaps: small update. - Handle dmi_system_check() elegantly, now that my bugfix is upstream. - Add support for the X41 and R52. - Cleanup some comments do I do not have to keep updating them with each new whitelisted laptop. Signed-off-by: Robert Love Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/hwmon/Kconfig | 9 ++++----- drivers/hwmon/hdaps.c | 21 +++++++++------------ 2 files changed, 13 insertions(+), 17 deletions(-) diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index 7e72e922b41c..db358cfa7cbf 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -418,12 +418,11 @@ config SENSORS_HDAPS help This driver provides support for the IBM Hard Drive Active Protection System (hdaps), which provides an accelerometer and other misc. data. - Supported laptops include the IBM ThinkPad T41, T42, T43, and R51. - The accelerometer data is readable via sysfs. + ThinkPads starting with the R50, T41, and X40 are supported. The + accelerometer data is readable via sysfs. - This driver also provides an input class device, allowing the - laptop to act as a pinball machine-esque mouse. This is off by - default but enabled via sysfs or the module parameter "mousedev". + This driver also provides an absolute input class device, allowing + the laptop to act as a pinball machine-esque joystick. Say Y here if you have an applicable laptop and want to experience the awesome power of hdaps. diff --git a/drivers/hwmon/hdaps.c b/drivers/hwmon/hdaps.c index 4c56411f3993..7f0107613827 100644 --- a/drivers/hwmon/hdaps.c +++ b/drivers/hwmon/hdaps.c @@ -4,9 +4,9 @@ * Copyright (C) 2005 Robert Love * Copyright (C) 2005 Jesper Juhl * - * The HardDisk Active Protection System (hdaps) is present in the IBM ThinkPad - * T41, T42, T43, R50, R50p, R51, and X40, at least. It provides a basic - * two-axis accelerometer and other data, such as the device's temperature. + * The HardDisk Active Protection System (hdaps) is present in IBM ThinkPads + * starting with the R40, T41, and X40. It provides a basic two-axis + * accelerometer and other data, such as the device's temperature. * * This driver is based on the document by Mark A. Smith available at * http://www.almaden.ibm.com/cs/people/marksmith/tpaps.html and a lot of trial @@ -487,24 +487,19 @@ static struct attribute_group hdaps_attribute_group = { /* Module stuff */ -/* - * XXX: We should be able to return nonzero and halt the detection process. - * But there is a bug in dmi_check_system() where a nonzero return from the - * first match will result in a return of failure from dmi_check_system(). - * I fixed this; the patch is 2.6-git. Once in a released tree, we can make - * hdaps_dmi_match_invert() return hdaps_dmi_match(), which in turn returns 1. - */ +/* hdaps_dmi_match - found a match. return one, short-circuiting the hunt. */ static int hdaps_dmi_match(struct dmi_system_id *id) { printk(KERN_INFO "hdaps: %s detected.\n", id->ident); - return 0; + return 1; } +/* hdaps_dmi_match_invert - found an inverted match. */ static int hdaps_dmi_match_invert(struct dmi_system_id *id) { hdaps_invert = 1; printk(KERN_INFO "hdaps: inverting axis readings.\n"); - return 0; + return hdaps_dmi_match(id); } #define HDAPS_DMI_MATCH_NORMAL(model) { \ @@ -534,6 +529,7 @@ static int __init hdaps_init(void) HDAPS_DMI_MATCH_INVERT("ThinkPad R50p"), HDAPS_DMI_MATCH_NORMAL("ThinkPad R50"), HDAPS_DMI_MATCH_NORMAL("ThinkPad R51"), + HDAPS_DMI_MATCH_NORMAL("ThinkPad R52"), HDAPS_DMI_MATCH_INVERT("ThinkPad T41p"), HDAPS_DMI_MATCH_NORMAL("ThinkPad T41"), HDAPS_DMI_MATCH_INVERT("ThinkPad T42p"), @@ -541,6 +537,7 @@ static int __init hdaps_init(void) HDAPS_DMI_MATCH_NORMAL("ThinkPad T43"), HDAPS_DMI_MATCH_NORMAL("ThinkPad X40"), HDAPS_DMI_MATCH_NORMAL("ThinkPad X41 Tablet"), + HDAPS_DMI_MATCH_NORMAL("ThinkPad X41"), { .ident = NULL } }; From 57487f4376e16558ccbe45a5b41d8cb5192309a4 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Thu, 22 Sep 2005 21:44:01 -0700 Subject: [PATCH 062/352] [PATCH] swsusp: do not trigger BUG_ON() if there is not enough memory The following patch makes swsusp avoid triggering the BUG_ON() in swsusp_suspend() if there is not enough memory for suspend. Signed-off-by: Rafael J. Wysocki Cc: Pavel Machek Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/power/swsusp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/power/swsusp.c b/kernel/power/swsusp.c index d967e875ee82..353f37f1ba28 100644 --- a/kernel/power/swsusp.c +++ b/kernel/power/swsusp.c @@ -918,6 +918,7 @@ static int swsusp_alloc(void) pagedir_nosave = NULL; nr_copy_pages = calc_nr(nr_copy_pages); + nr_copy_pages_check = nr_copy_pages; pr_debug("suspend: (pages needed: %d + %d free: %d)\n", nr_copy_pages, PAGES_FOR_IO, nr_free_pages()); @@ -940,7 +941,6 @@ static int swsusp_alloc(void) return error; } - nr_copy_pages_check = nr_copy_pages; return 0; } From ff69416e6323fe9d38c42a06ebdefeb58bbe9336 Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Thu, 22 Sep 2005 21:44:02 -0700 Subject: [PATCH 063/352] [PATCH] slab: fix handling of pages from foreign NUMA nodes The numa slab allocator may allocate pages from foreign nodes onto the lists for a particular node if a node runs out of memory. Inspecting the slab->nodeid field will not reflect that the page is now in use for the slabs of another node. This patch fixes that issue by adding a node field to free_block so that the caller can indicate which node currently uses a slab. Also removes the check for the current node from kmalloc_cache_node since the process may shift later to another node which may lead to an allocation on another node than intended. Signed-off-by: Christoph Lameter Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/slab.c | 38 +++++++++++++++++++------------------- 1 file changed, 19 insertions(+), 19 deletions(-) diff --git a/mm/slab.c b/mm/slab.c index cf19ff2ab5e2..c9adfce00405 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -640,7 +640,7 @@ static enum { static DEFINE_PER_CPU(struct work_struct, reap_work); -static void free_block(kmem_cache_t* cachep, void** objpp, int len); +static void free_block(kmem_cache_t* cachep, void** objpp, int len, int node); static void enable_cpucache (kmem_cache_t *cachep); static void cache_reap (void *unused); static int __node_shrink(kmem_cache_t *cachep, int node); @@ -805,7 +805,7 @@ static inline void __drain_alien_cache(kmem_cache_t *cachep, struct array_cache if (ac->avail) { spin_lock(&rl3->list_lock); - free_block(cachep, ac->entry, ac->avail); + free_block(cachep, ac->entry, ac->avail, node); ac->avail = 0; spin_unlock(&rl3->list_lock); } @@ -926,7 +926,7 @@ static int __devinit cpuup_callback(struct notifier_block *nfb, /* Free limit for this kmem_list3 */ l3->free_limit -= cachep->batchcount; if (nc) - free_block(cachep, nc->entry, nc->avail); + free_block(cachep, nc->entry, nc->avail, node); if (!cpus_empty(mask)) { spin_unlock(&l3->list_lock); @@ -935,7 +935,7 @@ static int __devinit cpuup_callback(struct notifier_block *nfb, if (l3->shared) { free_block(cachep, l3->shared->entry, - l3->shared->avail); + l3->shared->avail, node); kfree(l3->shared); l3->shared = NULL; } @@ -1883,12 +1883,13 @@ static void do_drain(void *arg) { kmem_cache_t *cachep = (kmem_cache_t*)arg; struct array_cache *ac; + int node = numa_node_id(); check_irq_off(); ac = ac_data(cachep); - spin_lock(&cachep->nodelists[numa_node_id()]->list_lock); - free_block(cachep, ac->entry, ac->avail); - spin_unlock(&cachep->nodelists[numa_node_id()]->list_lock); + spin_lock(&cachep->nodelists[node]->list_lock); + free_block(cachep, ac->entry, ac->avail, node); + spin_unlock(&cachep->nodelists[node]->list_lock); ac->avail = 0; } @@ -2609,7 +2610,7 @@ done: /* * Caller needs to acquire correct kmem_list's list_lock */ -static void free_block(kmem_cache_t *cachep, void **objpp, int nr_objects) +static void free_block(kmem_cache_t *cachep, void **objpp, int nr_objects, int node) { int i; struct kmem_list3 *l3; @@ -2618,14 +2619,12 @@ static void free_block(kmem_cache_t *cachep, void **objpp, int nr_objects) void *objp = objpp[i]; struct slab *slabp; unsigned int objnr; - int nodeid = 0; slabp = GET_PAGE_SLAB(virt_to_page(objp)); - nodeid = slabp->nodeid; - l3 = cachep->nodelists[nodeid]; + l3 = cachep->nodelists[node]; list_del(&slabp->list); objnr = (objp - slabp->s_mem) / cachep->objsize; - check_spinlock_acquired_node(cachep, nodeid); + check_spinlock_acquired_node(cachep, node); check_slabp(cachep, slabp); @@ -2665,13 +2664,14 @@ static void cache_flusharray(kmem_cache_t *cachep, struct array_cache *ac) { int batchcount; struct kmem_list3 *l3; + int node = numa_node_id(); batchcount = ac->batchcount; #if DEBUG BUG_ON(!batchcount || batchcount > ac->avail); #endif check_irq_off(); - l3 = cachep->nodelists[numa_node_id()]; + l3 = cachep->nodelists[node]; spin_lock(&l3->list_lock); if (l3->shared) { struct array_cache *shared_array = l3->shared; @@ -2687,7 +2687,7 @@ static void cache_flusharray(kmem_cache_t *cachep, struct array_cache *ac) } } - free_block(cachep, ac->entry, batchcount); + free_block(cachep, ac->entry, batchcount, node); free_done: #if STATS { @@ -2752,7 +2752,7 @@ static inline void __cache_free(kmem_cache_t *cachep, void *objp) } else { spin_lock(&(cachep->nodelists[nodeid])-> list_lock); - free_block(cachep, &objp, 1); + free_block(cachep, &objp, 1, nodeid); spin_unlock(&(cachep->nodelists[nodeid])-> list_lock); } @@ -2845,7 +2845,7 @@ void *kmem_cache_alloc_node(kmem_cache_t *cachep, unsigned int __nocast flags, i unsigned long save_flags; void *ptr; - if (nodeid == numa_node_id() || nodeid == -1) + if (nodeid == -1) return __cache_alloc(cachep, flags); if (unlikely(!cachep->nodelists[nodeid])) { @@ -3080,7 +3080,7 @@ static int alloc_kmemlist(kmem_cache_t *cachep) if ((nc = cachep->nodelists[node]->shared)) free_block(cachep, nc->entry, - nc->avail); + nc->avail, node); l3->shared = new; if (!cachep->nodelists[node]->alien) { @@ -3161,7 +3161,7 @@ static int do_tune_cpucache(kmem_cache_t *cachep, int limit, int batchcount, if (!ccold) continue; spin_lock_irq(&cachep->nodelists[cpu_to_node(i)]->list_lock); - free_block(cachep, ccold->entry, ccold->avail); + free_block(cachep, ccold->entry, ccold->avail, cpu_to_node(i)); spin_unlock_irq(&cachep->nodelists[cpu_to_node(i)]->list_lock); kfree(ccold); } @@ -3241,7 +3241,7 @@ static void drain_array_locked(kmem_cache_t *cachep, if (tofree > ac->avail) { tofree = (ac->avail+1)/2; } - free_block(cachep, ac->entry, tofree); + free_block(cachep, ac->entry, tofree, node); ac->avail -= tofree; memmove(ac->entry, &(ac->entry[tofree]), sizeof(void*)*ac->avail); From 275abf5b06676ca057cf3e15f0d027eafcb204a0 Mon Sep 17 00:00:00 2001 From: OGAWA Hirofumi Date: Thu, 22 Sep 2005 21:44:03 -0700 Subject: [PATCH 064/352] [PATCH] ext3: ext3_show_options fix EXT3_MOUNT_DATA_FLAGS is not a boolean. This fixes it. Signed-off-by: OGAWA Hirofumi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/ext3/super.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/fs/ext3/super.c b/fs/ext3/super.c index a93c3609025d..9e24ceb019fe 100644 --- a/fs/ext3/super.c +++ b/fs/ext3/super.c @@ -512,15 +512,14 @@ static void ext3_clear_inode(struct inode *inode) static int ext3_show_options(struct seq_file *seq, struct vfsmount *vfs) { - struct ext3_sb_info *sbi = EXT3_SB(vfs->mnt_sb); + struct super_block *sb = vfs->mnt_sb; + struct ext3_sb_info *sbi = EXT3_SB(sb); - if (sbi->s_mount_opt & EXT3_MOUNT_JOURNAL_DATA) + if (test_opt(sb, DATA_FLAGS) == EXT3_MOUNT_JOURNAL_DATA) seq_puts(seq, ",data=journal"); - - if (sbi->s_mount_opt & EXT3_MOUNT_ORDERED_DATA) + else if (test_opt(sb, DATA_FLAGS) == EXT3_MOUNT_ORDERED_DATA) seq_puts(seq, ",data=ordered"); - - if (sbi->s_mount_opt & EXT3_MOUNT_WRITEBACK_DATA) + else if (test_opt(sb, DATA_FLAGS) == EXT3_MOUNT_WRITEBACK_DATA) seq_puts(seq, ",data=writeback"); #if defined(CONFIG_QUOTA) From 586a90eb4c0b512df766e08a7718af7c6b9b2dcf Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Thu, 22 Sep 2005 21:44:04 -0700 Subject: [PATCH 065/352] [PATCH] ppc64: Fix LPAR regression The recent iommu fix broke booting on some POWER4 and POWER5 LPAR boxes. It looks like we have been calling the non LPAR iommu_dev_setup on LPAR machines for a while. The recent iommu fix caused that code path to fail. It looks like we just need to hook up the devices iommu_table to the parents one, so do that instead of calling iommu_dev_setup_pSeries and crossing the streams. Signed-off-by: Anton Blanchard Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ppc64/kernel/pSeries_iommu.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/arch/ppc64/kernel/pSeries_iommu.c b/arch/ppc64/kernel/pSeries_iommu.c index 8c6313e7e145..25d6c7eebfd0 100644 --- a/arch/ppc64/kernel/pSeries_iommu.c +++ b/arch/ppc64/kernel/pSeries_iommu.c @@ -525,9 +525,8 @@ static void iommu_dev_setup_pSeriesLP(struct pci_dev *dev) * slots on POWER4 machines. */ if (dma_window == NULL || pdn->parent == NULL) { - /* Fall back to regular (non-LPAR) dev setup */ - DBG("No dma window for device, falling back to regular setup\n"); - iommu_dev_setup_pSeries(dev); + DBG("No dma window for device, linking to parent\n"); + PCI_DN(dn)->iommu_table = PCI_DN(pdn)->iommu_table; return; } else { DBG("Found DMA window, allocating table\n"); From f951da3757cf46444a6ea52e97b8aa9400fe761a Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Thu, 22 Sep 2005 21:44:05 -0700 Subject: [PATCH 066/352] [PATCH] ppc64: Fix build with iommu debug enabled Fix build when iommu debug is enabled. Signed-off-by: Anton Blanchard Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ppc64/kernel/pSeries_iommu.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/arch/ppc64/kernel/pSeries_iommu.c b/arch/ppc64/kernel/pSeries_iommu.c index 25d6c7eebfd0..d17f0108a032 100644 --- a/arch/ppc64/kernel/pSeries_iommu.c +++ b/arch/ppc64/kernel/pSeries_iommu.c @@ -364,7 +364,8 @@ static void iommu_bus_setup_pSeries(struct pci_bus *bus) while (pci->phb->dma_window_size * children > 0x80000000ul) pci->phb->dma_window_size >>= 1; - DBG("No ISA/IDE, window size is %x\n", pci->phb->dma_window_size); + DBG("No ISA/IDE, window size is 0x%lx\n", + pci->phb->dma_window_size); pci->phb->dma_window_base_cur = 0; return; @@ -388,7 +389,7 @@ static void iommu_bus_setup_pSeries(struct pci_bus *bus) while (pci->phb->dma_window_size * children > 0x70000000ul) pci->phb->dma_window_size >>= 1; - DBG("ISA/IDE, window size is %x\n", pci->phb->dma_window_size); + DBG("ISA/IDE, window size is 0x%lx\n", pci->phb->dma_window_size); } @@ -442,7 +443,7 @@ static void iommu_dev_setup_pSeries(struct pci_dev *dev) struct device_node *dn, *mydn; struct iommu_table *tbl; - DBG("iommu_dev_setup_pSeries, dev %p (%s)\n", dev, dev->pretty_name); + DBG("iommu_dev_setup_pSeries, dev %p (%s)\n", dev, pci_name(dev)); mydn = dn = pci_device_to_OF_node(dev); @@ -469,7 +470,7 @@ static void iommu_dev_setup_pSeries(struct pci_dev *dev) if (dn && dn->data) { PCI_DN(mydn)->iommu_table = PCI_DN(dn)->iommu_table; } else { - DBG("iommu_dev_setup_pSeries, dev %p (%s) has no iommu table\n", dev, dev->pretty_name); + DBG("iommu_dev_setup_pSeries, dev %p (%s) has no iommu table\n", dev, pci_name(dev)); } } @@ -503,7 +504,7 @@ static void iommu_dev_setup_pSeriesLP(struct pci_dev *dev) int *dma_window = NULL; struct pci_dn *pci; - DBG("iommu_dev_setup_pSeriesLP, dev %p (%s)\n", dev, dev->pretty_name); + DBG("iommu_dev_setup_pSeriesLP, dev %p (%s)\n", dev, pci_name(dev)); /* dev setup for LPAR is a little tricky, since the device tree might * contain the dma-window properties per-device and not neccesarily From 0f329075fb1dbd6845db03e9bb8252024fdbea1f Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Thu, 22 Sep 2005 21:44:05 -0700 Subject: [PATCH 067/352] [PATCH] ppc64: Fix 64bit ptrace DABR support Fix my stupid bug in the 64bit version of PTRACE_SET_DEBUGREG. Signed-off-by: Anton Blanchard Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ppc64/kernel/ptrace.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/ppc64/kernel/ptrace.c b/arch/ppc64/kernel/ptrace.c index 85ed3188a91d..b1c044ca5756 100644 --- a/arch/ppc64/kernel/ptrace.c +++ b/arch/ppc64/kernel/ptrace.c @@ -219,6 +219,7 @@ int sys_ptrace(long request, long pid, long addr, long data) case PTRACE_SET_DEBUGREG: ret = ptrace_set_debugreg(child, addr, data); + break; case PTRACE_DETACH: ret = ptrace_detach(child, data); From 0365ba7fb1fa94a41289d6a3d36b4d95960e56cc Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Thu, 22 Sep 2005 21:44:06 -0700 Subject: [PATCH 068/352] [PATCH] ppc64: SMU driver update & i2c support The SMU is the "system controller" chip used by Apple recent G5 machines including the iMac G5. It drives things like fans, i2c busses, real time clock, etc... The current kernel contains a very crude driver that doesn't do much more than reading the real time clock synchronously. This is a completely rewritten driver that provides interrupt based command queuing, a userland interface, and an i2c/smbus driver for accessing the devices hanging off the SMU i2c busses like temperature sensors. This driver is a basic block for upcoming work on thermal control for those machines, among others. Signed-off-by: Benjamin Herrenschmidt Cc: Jean Delvare Cc: Greg KH Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ppc/platforms/pmac_setup.c | 10 +- arch/ppc/syslib/of_device.c | 6 +- arch/ppc64/kernel/of_device.c | 7 +- arch/ppc64/kernel/pmac_setup.c | 18 +- arch/ppc64/kernel/pmac_time.c | 4 +- drivers/i2c/busses/Kconfig | 12 + drivers/i2c/busses/Makefile | 1 + drivers/i2c/busses/i2c-pmac-smu.c | 316 ++++++++ drivers/macintosh/smu.c | 1042 ++++++++++++++++++++++---- drivers/macintosh/therm_adt746x.c | 2 +- drivers/macintosh/therm_pm72.c | 2 +- drivers/macintosh/therm_windtunnel.c | 2 +- include/asm-ppc/macio.h | 1 - include/asm-ppc/of_device.h | 5 +- include/asm-ppc64/smu.h | 365 ++++++++- 15 files changed, 1624 insertions(+), 169 deletions(-) create mode 100644 drivers/i2c/busses/i2c-pmac-smu.c diff --git a/arch/ppc/platforms/pmac_setup.c b/arch/ppc/platforms/pmac_setup.c index b392b9a15987..4c56a4734aec 100644 --- a/arch/ppc/platforms/pmac_setup.c +++ b/arch/ppc/platforms/pmac_setup.c @@ -719,7 +719,8 @@ pmac_declare_of_platform_devices(void) if (np) { for (np = np->child; np != NULL; np = np->sibling) if (strncmp(np->name, "i2c", 3) == 0) { - of_platform_device_create(np, "uni-n-i2c"); + of_platform_device_create(np, "uni-n-i2c", + NULL); break; } } @@ -727,17 +728,18 @@ pmac_declare_of_platform_devices(void) if (np) { for (np = np->child; np != NULL; np = np->sibling) if (strncmp(np->name, "i2c", 3) == 0) { - of_platform_device_create(np, "u3-i2c"); + of_platform_device_create(np, "u3-i2c", + NULL); break; } } np = find_devices("valkyrie"); if (np) - of_platform_device_create(np, "valkyrie"); + of_platform_device_create(np, "valkyrie", NULL); np = find_devices("platinum"); if (np) - of_platform_device_create(np, "platinum"); + of_platform_device_create(np, "platinum", NULL); return 0; } diff --git a/arch/ppc/syslib/of_device.c b/arch/ppc/syslib/of_device.c index da8a0f2128dc..93c7231ea709 100644 --- a/arch/ppc/syslib/of_device.c +++ b/arch/ppc/syslib/of_device.c @@ -234,7 +234,9 @@ void of_device_unregister(struct of_device *ofdev) device_unregister(&ofdev->dev); } -struct of_device* of_platform_device_create(struct device_node *np, const char *bus_id) +struct of_device* of_platform_device_create(struct device_node *np, + const char *bus_id, + struct device *parent) { struct of_device *dev; u32 *reg; @@ -247,7 +249,7 @@ struct of_device* of_platform_device_create(struct device_node *np, const char * dev->node = of_node_get(np); dev->dma_mask = 0xffffffffUL; dev->dev.dma_mask = &dev->dma_mask; - dev->dev.parent = NULL; + dev->dev.parent = parent; dev->dev.bus = &of_platform_bus_type; dev->dev.release = of_release_dev; diff --git a/arch/ppc64/kernel/of_device.c b/arch/ppc64/kernel/of_device.c index da580812ddfe..9f200f0f2ad5 100644 --- a/arch/ppc64/kernel/of_device.c +++ b/arch/ppc64/kernel/of_device.c @@ -233,7 +233,9 @@ void of_device_unregister(struct of_device *ofdev) device_unregister(&ofdev->dev); } -struct of_device* of_platform_device_create(struct device_node *np, const char *bus_id) +struct of_device* of_platform_device_create(struct device_node *np, + const char *bus_id, + struct device *parent) { struct of_device *dev; @@ -245,7 +247,7 @@ struct of_device* of_platform_device_create(struct device_node *np, const char * dev->node = np; dev->dma_mask = 0xffffffffUL; dev->dev.dma_mask = &dev->dma_mask; - dev->dev.parent = NULL; + dev->dev.parent = parent; dev->dev.bus = &of_platform_bus_type; dev->dev.release = of_release_dev; @@ -259,6 +261,7 @@ struct of_device* of_platform_device_create(struct device_node *np, const char * return dev; } + EXPORT_SYMBOL(of_match_device); EXPORT_SYMBOL(of_platform_bus_type); EXPORT_SYMBOL(of_register_driver); diff --git a/arch/ppc64/kernel/pmac_setup.c b/arch/ppc64/kernel/pmac_setup.c index 325426c7bed0..25755252067a 100644 --- a/arch/ppc64/kernel/pmac_setup.c +++ b/arch/ppc64/kernel/pmac_setup.c @@ -434,15 +434,23 @@ static int pmac_check_legacy_ioport(unsigned int baseport) static int __init pmac_declare_of_platform_devices(void) { - struct device_node *np; + struct device_node *np, *npp; - np = find_devices("u3"); - if (np) { - for (np = np->child; np != NULL; np = np->sibling) + npp = of_find_node_by_name(NULL, "u3"); + if (npp) { + for (np = NULL; (np = of_get_next_child(npp, np)) != NULL;) { if (strncmp(np->name, "i2c", 3) == 0) { - of_platform_device_create(np, "u3-i2c"); + of_platform_device_create(np, "u3-i2c", NULL); + of_node_put(np); break; } + } + of_node_put(npp); + } + npp = of_find_node_by_type(NULL, "smu"); + if (npp) { + of_platform_device_create(npp, "smu", NULL); + of_node_put(npp); } return 0; diff --git a/arch/ppc64/kernel/pmac_time.c b/arch/ppc64/kernel/pmac_time.c index 3059edb09cc8..41bbb8c59697 100644 --- a/arch/ppc64/kernel/pmac_time.c +++ b/arch/ppc64/kernel/pmac_time.c @@ -84,7 +84,7 @@ void __pmac pmac_get_rtc_time(struct rtc_time *tm) #ifdef CONFIG_PMAC_SMU case SYS_CTRLER_SMU: - smu_get_rtc_time(tm); + smu_get_rtc_time(tm, 1); break; #endif /* CONFIG_PMAC_SMU */ default: @@ -128,7 +128,7 @@ int __pmac pmac_set_rtc_time(struct rtc_time *tm) #ifdef CONFIG_PMAC_SMU case SYS_CTRLER_SMU: - return smu_set_rtc_time(tm); + return smu_set_rtc_time(tm, 1); #endif /* CONFIG_PMAC_SMU */ default: return -ENODEV; diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig index 8334496a7e0a..3badfec75b1c 100644 --- a/drivers/i2c/busses/Kconfig +++ b/drivers/i2c/busses/Kconfig @@ -245,6 +245,18 @@ config I2C_KEYWEST This support is also available as a module. If so, the module will be called i2c-keywest. +config I2C_PMAC_SMU + tristate "Powermac SMU I2C interface" + depends on I2C && PMAC_SMU + help + This supports the use of the I2C interface in the SMU + chip on recent Apple machines like the iMac G5. It is used + among others by the thermal control driver for those machines. + Say Y if you have such a machine. + + This support is also available as a module. If so, the module + will be called i2c-pmac-smu. + config I2C_MPC tristate "MPC107/824x/85xx/52xx" depends on I2C && PPC32 diff --git a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile index 980b3e983670..f1df00f66c6c 100644 --- a/drivers/i2c/busses/Makefile +++ b/drivers/i2c/busses/Makefile @@ -20,6 +20,7 @@ obj-$(CONFIG_I2C_ITE) += i2c-ite.o obj-$(CONFIG_I2C_IXP2000) += i2c-ixp2000.o obj-$(CONFIG_I2C_IXP4XX) += i2c-ixp4xx.o obj-$(CONFIG_I2C_KEYWEST) += i2c-keywest.o +obj-$(CONFIG_I2C_PMAC_SMU) += i2c-pmac-smu.o obj-$(CONFIG_I2C_MPC) += i2c-mpc.o obj-$(CONFIG_I2C_MV64XXX) += i2c-mv64xxx.o obj-$(CONFIG_I2C_NFORCE2) += i2c-nforce2.o diff --git a/drivers/i2c/busses/i2c-pmac-smu.c b/drivers/i2c/busses/i2c-pmac-smu.c new file mode 100644 index 000000000000..8a9f5648a23d --- /dev/null +++ b/drivers/i2c/busses/i2c-pmac-smu.c @@ -0,0 +1,316 @@ +/* + i2c Support for Apple SMU Controller + + Copyright (c) 2005 Benjamin Herrenschmidt, IBM Corp. + + + 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., 675 Mass Ave, Cambridge, MA 02139, USA. + +*/ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +static int probe; + +MODULE_AUTHOR("Benjamin Herrenschmidt "); +MODULE_DESCRIPTION("I2C driver for Apple's SMU"); +MODULE_LICENSE("GPL"); +module_param(probe, bool, 0); + + +/* Physical interface */ +struct smu_iface +{ + struct i2c_adapter adapter; + struct completion complete; + u32 busid; +}; + +static void smu_i2c_done(struct smu_i2c_cmd *cmd, void *misc) +{ + struct smu_iface *iface = misc; + complete(&iface->complete); +} + +/* + * SMBUS-type transfer entrypoint + */ +static s32 smu_smbus_xfer( struct i2c_adapter* adap, + u16 addr, + unsigned short flags, + char read_write, + u8 command, + int size, + union i2c_smbus_data* data) +{ + struct smu_iface *iface = i2c_get_adapdata(adap); + struct smu_i2c_cmd cmd; + int rc = 0; + int read = (read_write == I2C_SMBUS_READ); + + cmd.info.bus = iface->busid; + cmd.info.devaddr = (addr << 1) | (read ? 0x01 : 0x00); + + /* Prepare datas & select mode */ + switch (size) { + case I2C_SMBUS_QUICK: + cmd.info.type = SMU_I2C_TRANSFER_SIMPLE; + cmd.info.datalen = 0; + break; + case I2C_SMBUS_BYTE: + cmd.info.type = SMU_I2C_TRANSFER_SIMPLE; + cmd.info.datalen = 1; + if (!read) + cmd.info.data[0] = data->byte; + break; + case I2C_SMBUS_BYTE_DATA: + cmd.info.type = SMU_I2C_TRANSFER_STDSUB; + cmd.info.datalen = 1; + cmd.info.sublen = 1; + cmd.info.subaddr[0] = command; + cmd.info.subaddr[1] = 0; + cmd.info.subaddr[2] = 0; + if (!read) + cmd.info.data[0] = data->byte; + break; + case I2C_SMBUS_WORD_DATA: + cmd.info.type = SMU_I2C_TRANSFER_STDSUB; + cmd.info.datalen = 2; + cmd.info.sublen = 1; + cmd.info.subaddr[0] = command; + cmd.info.subaddr[1] = 0; + cmd.info.subaddr[2] = 0; + if (!read) { + cmd.info.data[0] = data->byte & 0xff; + cmd.info.data[1] = (data->byte >> 8) & 0xff; + } + break; + /* Note that these are broken vs. the expected smbus API where + * on reads, the lenght is actually returned from the function, + * but I think the current API makes no sense and I don't want + * any driver that I haven't verified for correctness to go + * anywhere near a pmac i2c bus anyway ... + */ + case I2C_SMBUS_BLOCK_DATA: + cmd.info.type = SMU_I2C_TRANSFER_STDSUB; + cmd.info.datalen = data->block[0] + 1; + if (cmd.info.datalen > 6) + return -EINVAL; + if (!read) + memcpy(cmd.info.data, data->block, cmd.info.datalen); + cmd.info.sublen = 1; + cmd.info.subaddr[0] = command; + cmd.info.subaddr[1] = 0; + cmd.info.subaddr[2] = 0; + break; + case I2C_SMBUS_I2C_BLOCK_DATA: + cmd.info.type = SMU_I2C_TRANSFER_STDSUB; + cmd.info.datalen = data->block[0]; + if (cmd.info.datalen > 7) + return -EINVAL; + if (!read) + memcpy(cmd.info.data, &data->block[1], + cmd.info.datalen); + cmd.info.sublen = 1; + cmd.info.subaddr[0] = command; + cmd.info.subaddr[1] = 0; + cmd.info.subaddr[2] = 0; + break; + + default: + return -EINVAL; + } + + /* Turn a standardsub read into a combined mode access */ + if (read_write == I2C_SMBUS_READ && + cmd.info.type == SMU_I2C_TRANSFER_STDSUB) + cmd.info.type = SMU_I2C_TRANSFER_COMBINED; + + /* Finish filling command and submit it */ + cmd.done = smu_i2c_done; + cmd.misc = iface; + rc = smu_queue_i2c(&cmd); + if (rc < 0) + return rc; + wait_for_completion(&iface->complete); + rc = cmd.status; + + if (!read || rc < 0) + return rc; + + switch (size) { + case I2C_SMBUS_BYTE: + case I2C_SMBUS_BYTE_DATA: + data->byte = cmd.info.data[0]; + break; + case I2C_SMBUS_WORD_DATA: + data->word = ((u16)cmd.info.data[1]) << 8; + data->word |= cmd.info.data[0]; + break; + /* Note that these are broken vs. the expected smbus API where + * on reads, the lenght is actually returned from the function, + * but I think the current API makes no sense and I don't want + * any driver that I haven't verified for correctness to go + * anywhere near a pmac i2c bus anyway ... + */ + case I2C_SMBUS_BLOCK_DATA: + case I2C_SMBUS_I2C_BLOCK_DATA: + memcpy(&data->block[0], cmd.info.data, cmd.info.datalen); + break; + } + + return rc; +} + +static u32 +smu_smbus_func(struct i2c_adapter * adapter) +{ + return I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE | + I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA | + I2C_FUNC_SMBUS_BLOCK_DATA; +} + +/* For now, we only handle combined mode (smbus) */ +static struct i2c_algorithm smu_algorithm = { + .smbus_xfer = smu_smbus_xfer, + .functionality = smu_smbus_func, +}; + +static int create_iface(struct device_node *np, struct device *dev) +{ + struct smu_iface* iface; + u32 *reg, busid; + int rc; + + reg = (u32 *)get_property(np, "reg", NULL); + if (reg == NULL) { + printk(KERN_ERR "i2c-pmac-smu: can't find bus number !\n"); + return -ENXIO; + } + busid = *reg; + + iface = kmalloc(sizeof(struct smu_iface), GFP_KERNEL); + if (iface == NULL) { + printk(KERN_ERR "i2c-pmac-smu: can't allocate inteface !\n"); + return -ENOMEM; + } + memset(iface, 0, sizeof(struct smu_iface)); + init_completion(&iface->complete); + iface->busid = busid; + + dev_set_drvdata(dev, iface); + + sprintf(iface->adapter.name, "smu-i2c-%02x", busid); + iface->adapter.algo = &smu_algorithm; + iface->adapter.algo_data = NULL; + iface->adapter.client_register = NULL; + iface->adapter.client_unregister = NULL; + i2c_set_adapdata(&iface->adapter, iface); + iface->adapter.dev.parent = dev; + + rc = i2c_add_adapter(&iface->adapter); + if (rc) { + printk(KERN_ERR "i2c-pamc-smu.c: Adapter %s registration " + "failed\n", iface->adapter.name); + i2c_set_adapdata(&iface->adapter, NULL); + } + + if (probe) { + unsigned char addr; + printk("Probe: "); + for (addr = 0x00; addr <= 0x7f; addr++) { + if (i2c_smbus_xfer(&iface->adapter,addr, + 0,0,0,I2C_SMBUS_QUICK,NULL) >= 0) + printk("%02x ", addr); + } + printk("\n"); + } + + printk(KERN_INFO "SMU i2c bus %x registered\n", busid); + + return 0; +} + +static int dispose_iface(struct device *dev) +{ + struct smu_iface *iface = dev_get_drvdata(dev); + int rc; + + rc = i2c_del_adapter(&iface->adapter); + i2c_set_adapdata(&iface->adapter, NULL); + /* We aren't that prepared to deal with this... */ + if (rc) + printk("i2c-pmac-smu.c: Failed to remove bus %s !\n", + iface->adapter.name); + dev_set_drvdata(dev, NULL); + kfree(iface); + + return 0; +} + + +static int create_iface_of_platform(struct of_device* dev, + const struct of_device_id *match) +{ + return create_iface(dev->node, &dev->dev); +} + + +static int dispose_iface_of_platform(struct of_device* dev) +{ + return dispose_iface(&dev->dev); +} + + +static struct of_device_id i2c_smu_match[] = +{ + { + .compatible = "smu-i2c", + }, + {}, +}; +static struct of_platform_driver i2c_smu_of_platform_driver = +{ + .name = "i2c-smu", + .match_table = i2c_smu_match, + .probe = create_iface_of_platform, + .remove = dispose_iface_of_platform +}; + + +static int __init i2c_pmac_smu_init(void) +{ + of_register_driver(&i2c_smu_of_platform_driver); + return 0; +} + + +static void __exit i2c_pmac_smu_cleanup(void) +{ + of_unregister_driver(&i2c_smu_of_platform_driver); +} + +module_init(i2c_pmac_smu_init); +module_exit(i2c_pmac_smu_cleanup); diff --git a/drivers/macintosh/smu.c b/drivers/macintosh/smu.c index fb535737d17d..a85ac18dd21d 100644 --- a/drivers/macintosh/smu.c +++ b/drivers/macintosh/smu.c @@ -8,21 +8,15 @@ */ /* - * For now, this driver includes: - * - RTC get & set - * - reboot & shutdown commands - * all synchronous with IRQ disabled (ugh) - * * TODO: - * rework in a way the PMU driver works, that is asynchronous - * with a queue of commands. I'll do that as soon as I have an - * SMU based machine at hand. Some more cleanup is needed too, - * like maybe fitting it into a platform device, etc... - * Also check what's up with cache coherency, and if we really - * can't do better than flushing the cache, maybe build a table - * of command len/reply len like the PMU driver to only flush - * what is actually necessary. - * --BenH. + * - maybe add timeout to commands ? + * - blocking version of time functions + * - polling version of i2c commands (including timer that works with + * interrutps off) + * - maybe avoid some data copies with i2c by directly using the smu cmd + * buffer and a lower level internal interface + * - understand SMU -> CPU events and implement reception of them via + * the userland interface */ #include @@ -36,6 +30,11 @@ #include #include #include +#include +#include +#include +#include +#include #include #include @@ -45,8 +44,13 @@ #include #include #include +#include +#include -#define DEBUG_SMU 1 +#define VERSION "0.6" +#define AUTHOR "(c) 2005 Benjamin Herrenschmidt, IBM Corp." + +#undef DEBUG_SMU #ifdef DEBUG_SMU #define DPRINTK(fmt, args...) do { printk(KERN_DEBUG fmt , ##args); } while (0) @@ -57,20 +61,30 @@ /* * This is the command buffer passed to the SMU hardware */ +#define SMU_MAX_DATA 254 + struct smu_cmd_buf { u8 cmd; u8 length; - u8 data[0x0FFE]; + u8 data[SMU_MAX_DATA]; }; struct smu_device { spinlock_t lock; struct device_node *of_node; - int db_ack; /* doorbell ack GPIO */ - int db_req; /* doorbell req GPIO */ + struct of_device *of_dev; + int doorbell; /* doorbell gpio */ u32 __iomem *db_buf; /* doorbell buffer */ + int db_irq; + int msg; + int msg_irq; struct smu_cmd_buf *cmd_buf; /* command buffer virtual */ u32 cmd_buf_abs; /* command buffer absolute */ + struct list_head cmd_list; + struct smu_cmd *cmd_cur; /* pending command */ + struct list_head cmd_i2c_list; + struct smu_i2c_cmd *cmd_i2c_cur; /* pending i2c command */ + struct timer_list i2c_timer; }; /* @@ -79,113 +93,243 @@ struct smu_device { */ static struct smu_device *smu; + /* - * SMU low level communication stuff + * SMU driver low level stuff */ -static inline int smu_cmd_stat(struct smu_cmd_buf *cmd_buf, u8 cmd_ack) -{ - rmb(); - return cmd_buf->cmd == cmd_ack && cmd_buf->length != 0; -} -static inline u8 smu_save_ack_cmd(struct smu_cmd_buf *cmd_buf) +static void smu_start_cmd(void) { - return (~cmd_buf->cmd) & 0xff; -} + unsigned long faddr, fend; + struct smu_cmd *cmd; -static void smu_send_cmd(struct smu_device *dev) -{ - /* SMU command buf is currently cacheable, we need a physical - * address. This isn't exactly a DMA mapping here, I suspect + if (list_empty(&smu->cmd_list)) + return; + + /* Fetch first command in queue */ + cmd = list_entry(smu->cmd_list.next, struct smu_cmd, link); + smu->cmd_cur = cmd; + list_del(&cmd->link); + + DPRINTK("SMU: starting cmd %x, %d bytes data\n", cmd->cmd, + cmd->data_len); + DPRINTK("SMU: data buffer: %02x %02x %02x %02x ...\n", + ((u8 *)cmd->data_buf)[0], ((u8 *)cmd->data_buf)[1], + ((u8 *)cmd->data_buf)[2], ((u8 *)cmd->data_buf)[3]); + + /* Fill the SMU command buffer */ + smu->cmd_buf->cmd = cmd->cmd; + smu->cmd_buf->length = cmd->data_len; + memcpy(smu->cmd_buf->data, cmd->data_buf, cmd->data_len); + + /* Flush command and data to RAM */ + faddr = (unsigned long)smu->cmd_buf; + fend = faddr + smu->cmd_buf->length + 2; + flush_inval_dcache_range(faddr, fend); + + /* This isn't exactly a DMA mapping here, I suspect * the SMU is actually communicating with us via i2c to the * northbridge or the CPU to access RAM. */ - writel(dev->cmd_buf_abs, dev->db_buf); + writel(smu->cmd_buf_abs, smu->db_buf); /* Ring the SMU doorbell */ - pmac_do_feature_call(PMAC_FTR_WRITE_GPIO, NULL, dev->db_req, 4); - pmac_do_feature_call(PMAC_FTR_READ_GPIO, NULL, dev->db_req, 4); + pmac_do_feature_call(PMAC_FTR_WRITE_GPIO, NULL, smu->doorbell, 4); } -static int smu_cmd_done(struct smu_device *dev) + +static irqreturn_t smu_db_intr(int irq, void *arg, struct pt_regs *regs) { - unsigned long wait = 0; - int gpio; + unsigned long flags; + struct smu_cmd *cmd; + void (*done)(struct smu_cmd *cmd, void *misc) = NULL; + void *misc = NULL; + u8 gpio; + int rc = 0; - /* Check the SMU doorbell */ - do { - gpio = pmac_do_feature_call(PMAC_FTR_READ_GPIO, - NULL, dev->db_ack); - if ((gpio & 7) == 7) - return 0; - udelay(100); - } while(++wait < 10000); + /* SMU completed the command, well, we hope, let's make sure + * of it + */ + spin_lock_irqsave(&smu->lock, flags); - printk(KERN_ERR "SMU timeout !\n"); - return -ENXIO; + gpio = pmac_do_feature_call(PMAC_FTR_READ_GPIO, NULL, smu->doorbell); + if ((gpio & 7) != 7) + return IRQ_HANDLED; + + cmd = smu->cmd_cur; + smu->cmd_cur = NULL; + if (cmd == NULL) + goto bail; + + if (rc == 0) { + unsigned long faddr; + int reply_len; + u8 ack; + + /* CPU might have brought back the cache line, so we need + * to flush again before peeking at the SMU response. We + * flush the entire buffer for now as we haven't read the + * reply lenght (it's only 2 cache lines anyway) + */ + faddr = (unsigned long)smu->cmd_buf; + flush_inval_dcache_range(faddr, faddr + 256); + + /* Now check ack */ + ack = (~cmd->cmd) & 0xff; + if (ack != smu->cmd_buf->cmd) { + DPRINTK("SMU: incorrect ack, want %x got %x\n", + ack, smu->cmd_buf->cmd); + rc = -EIO; + } + reply_len = rc == 0 ? smu->cmd_buf->length : 0; + DPRINTK("SMU: reply len: %d\n", reply_len); + if (reply_len > cmd->reply_len) { + printk(KERN_WARNING "SMU: reply buffer too small," + "got %d bytes for a %d bytes buffer\n", + reply_len, cmd->reply_len); + reply_len = cmd->reply_len; + } + cmd->reply_len = reply_len; + if (cmd->reply_buf && reply_len) + memcpy(cmd->reply_buf, smu->cmd_buf->data, reply_len); + } + + /* Now complete the command. Write status last in order as we lost + * ownership of the command structure as soon as it's no longer -1 + */ + done = cmd->done; + misc = cmd->misc; + mb(); + cmd->status = rc; + bail: + /* Start next command if any */ + smu_start_cmd(); + spin_unlock_irqrestore(&smu->lock, flags); + + /* Call command completion handler if any */ + if (done) + done(cmd, misc); + + /* It's an edge interrupt, nothing to do */ + return IRQ_HANDLED; } -static int smu_do_cmd(struct smu_device *dev) + +static irqreturn_t smu_msg_intr(int irq, void *arg, struct pt_regs *regs) { - int rc; - u8 cmd_ack; + /* I don't quite know what to do with this one, we seem to never + * receive it, so I suspect we have to arm it someway in the SMU + * to start getting events that way. + */ - DPRINTK("SMU do_cmd %02x len=%d %02x\n", - dev->cmd_buf->cmd, dev->cmd_buf->length, - dev->cmd_buf->data[0]); + printk(KERN_INFO "SMU: message interrupt !\n"); - cmd_ack = smu_save_ack_cmd(dev->cmd_buf); - - /* Clear cmd_buf cache lines */ - flush_inval_dcache_range((unsigned long)dev->cmd_buf, - ((unsigned long)dev->cmd_buf) + - sizeof(struct smu_cmd_buf)); - smu_send_cmd(dev); - rc = smu_cmd_done(dev); - if (rc == 0) - rc = smu_cmd_stat(dev->cmd_buf, cmd_ack) ? 0 : -1; - - DPRINTK("SMU do_cmd %02x len=%d %02x => %d (%02x)\n", - dev->cmd_buf->cmd, dev->cmd_buf->length, - dev->cmd_buf->data[0], rc, cmd_ack); - - return rc; + /* It's an edge interrupt, nothing to do */ + return IRQ_HANDLED; } + +/* + * Queued command management. + * + */ + +int smu_queue_cmd(struct smu_cmd *cmd) +{ + unsigned long flags; + + if (smu == NULL) + return -ENODEV; + if (cmd->data_len > SMU_MAX_DATA || + cmd->reply_len > SMU_MAX_DATA) + return -EINVAL; + + cmd->status = 1; + spin_lock_irqsave(&smu->lock, flags); + list_add_tail(&cmd->link, &smu->cmd_list); + if (smu->cmd_cur == NULL) + smu_start_cmd(); + spin_unlock_irqrestore(&smu->lock, flags); + + return 0; +} +EXPORT_SYMBOL(smu_queue_cmd); + + +int smu_queue_simple(struct smu_simple_cmd *scmd, u8 command, + unsigned int data_len, + void (*done)(struct smu_cmd *cmd, void *misc), + void *misc, ...) +{ + struct smu_cmd *cmd = &scmd->cmd; + va_list list; + int i; + + if (data_len > sizeof(scmd->buffer)) + return -EINVAL; + + memset(scmd, 0, sizeof(*scmd)); + cmd->cmd = command; + cmd->data_len = data_len; + cmd->data_buf = scmd->buffer; + cmd->reply_len = sizeof(scmd->buffer); + cmd->reply_buf = scmd->buffer; + cmd->done = done; + cmd->misc = misc; + + va_start(list, misc); + for (i = 0; i < data_len; ++i) + scmd->buffer[i] = (u8)va_arg(list, int); + va_end(list); + + return smu_queue_cmd(cmd); +} +EXPORT_SYMBOL(smu_queue_simple); + + +void smu_poll(void) +{ + u8 gpio; + + if (smu == NULL) + return; + + gpio = pmac_do_feature_call(PMAC_FTR_READ_GPIO, NULL, smu->doorbell); + if ((gpio & 7) == 7) + smu_db_intr(smu->db_irq, smu, NULL); +} +EXPORT_SYMBOL(smu_poll); + + +void smu_done_complete(struct smu_cmd *cmd, void *misc) +{ + struct completion *comp = misc; + + complete(comp); +} +EXPORT_SYMBOL(smu_done_complete); + + +void smu_spinwait_cmd(struct smu_cmd *cmd) +{ + while(cmd->status == 1) + smu_poll(); +} +EXPORT_SYMBOL(smu_spinwait_cmd); + + /* RTC low level commands */ static inline int bcd2hex (int n) { return (((n & 0xf0) >> 4) * 10) + (n & 0xf); } + static inline int hex2bcd (int n) { return ((n / 10) << 4) + (n % 10); } -#if 0 -static inline void smu_fill_set_pwrup_timer_cmd(struct smu_cmd_buf *cmd_buf) -{ - cmd_buf->cmd = 0x8e; - cmd_buf->length = 8; - cmd_buf->data[0] = 0x00; - memset(cmd_buf->data + 1, 0, 7); -} - -static inline void smu_fill_get_pwrup_timer_cmd(struct smu_cmd_buf *cmd_buf) -{ - cmd_buf->cmd = 0x8e; - cmd_buf->length = 1; - cmd_buf->data[0] = 0x01; -} - -static inline void smu_fill_dis_pwrup_timer_cmd(struct smu_cmd_buf *cmd_buf) -{ - cmd_buf->cmd = 0x8e; - cmd_buf->length = 1; - cmd_buf->data[0] = 0x02; -} -#endif static inline void smu_fill_set_rtc_cmd(struct smu_cmd_buf *cmd_buf, struct rtc_time *time) @@ -202,100 +346,96 @@ static inline void smu_fill_set_rtc_cmd(struct smu_cmd_buf *cmd_buf, cmd_buf->data[7] = hex2bcd(time->tm_year - 100); } -static inline void smu_fill_get_rtc_cmd(struct smu_cmd_buf *cmd_buf) -{ - cmd_buf->cmd = 0x8e; - cmd_buf->length = 1; - cmd_buf->data[0] = 0x81; -} -static void smu_parse_get_rtc_reply(struct smu_cmd_buf *cmd_buf, - struct rtc_time *time) +int smu_get_rtc_time(struct rtc_time *time, int spinwait) { - time->tm_sec = bcd2hex(cmd_buf->data[0]); - time->tm_min = bcd2hex(cmd_buf->data[1]); - time->tm_hour = bcd2hex(cmd_buf->data[2]); - time->tm_wday = bcd2hex(cmd_buf->data[3]); - time->tm_mday = bcd2hex(cmd_buf->data[4]); - time->tm_mon = bcd2hex(cmd_buf->data[5]) - 1; - time->tm_year = bcd2hex(cmd_buf->data[6]) + 100; -} - -int smu_get_rtc_time(struct rtc_time *time) -{ - unsigned long flags; + struct smu_simple_cmd cmd; int rc; if (smu == NULL) return -ENODEV; memset(time, 0, sizeof(struct rtc_time)); - spin_lock_irqsave(&smu->lock, flags); - smu_fill_get_rtc_cmd(smu->cmd_buf); - rc = smu_do_cmd(smu); - if (rc == 0) - smu_parse_get_rtc_reply(smu->cmd_buf, time); - spin_unlock_irqrestore(&smu->lock, flags); + rc = smu_queue_simple(&cmd, SMU_CMD_RTC_COMMAND, 1, NULL, NULL, + SMU_CMD_RTC_GET_DATETIME); + if (rc) + return rc; + smu_spinwait_simple(&cmd); - return rc; + time->tm_sec = bcd2hex(cmd.buffer[0]); + time->tm_min = bcd2hex(cmd.buffer[1]); + time->tm_hour = bcd2hex(cmd.buffer[2]); + time->tm_wday = bcd2hex(cmd.buffer[3]); + time->tm_mday = bcd2hex(cmd.buffer[4]); + time->tm_mon = bcd2hex(cmd.buffer[5]) - 1; + time->tm_year = bcd2hex(cmd.buffer[6]) + 100; + + return 0; } -int smu_set_rtc_time(struct rtc_time *time) + +int smu_set_rtc_time(struct rtc_time *time, int spinwait) { - unsigned long flags; + struct smu_simple_cmd cmd; int rc; if (smu == NULL) return -ENODEV; - spin_lock_irqsave(&smu->lock, flags); - smu_fill_set_rtc_cmd(smu->cmd_buf, time); - rc = smu_do_cmd(smu); - spin_unlock_irqrestore(&smu->lock, flags); + rc = smu_queue_simple(&cmd, SMU_CMD_RTC_COMMAND, 8, NULL, NULL, + SMU_CMD_RTC_SET_DATETIME, + hex2bcd(time->tm_sec), + hex2bcd(time->tm_min), + hex2bcd(time->tm_hour), + time->tm_wday, + hex2bcd(time->tm_mday), + hex2bcd(time->tm_mon) + 1, + hex2bcd(time->tm_year - 100)); + if (rc) + return rc; + smu_spinwait_simple(&cmd); - return rc; + return 0; } + void smu_shutdown(void) { - const unsigned char *command = "SHUTDOWN"; - unsigned long flags; + struct smu_simple_cmd cmd; if (smu == NULL) return; - spin_lock_irqsave(&smu->lock, flags); - smu->cmd_buf->cmd = 0xaa; - smu->cmd_buf->length = strlen(command); - strcpy(smu->cmd_buf->data, command); - smu_do_cmd(smu); + if (smu_queue_simple(&cmd, SMU_CMD_POWER_COMMAND, 9, NULL, NULL, + 'S', 'H', 'U', 'T', 'D', 'O', 'W', 'N', 0)) + return; + smu_spinwait_simple(&cmd); for (;;) ; - spin_unlock_irqrestore(&smu->lock, flags); } + void smu_restart(void) { - const unsigned char *command = "RESTART"; - unsigned long flags; + struct smu_simple_cmd cmd; if (smu == NULL) return; - spin_lock_irqsave(&smu->lock, flags); - smu->cmd_buf->cmd = 0xaa; - smu->cmd_buf->length = strlen(command); - strcpy(smu->cmd_buf->data, command); - smu_do_cmd(smu); + if (smu_queue_simple(&cmd, SMU_CMD_POWER_COMMAND, 8, NULL, NULL, + 'R', 'E', 'S', 'T', 'A', 'R', 'T', 0)) + return; + smu_spinwait_simple(&cmd); for (;;) ; - spin_unlock_irqrestore(&smu->lock, flags); } + int smu_present(void) { return smu != NULL; } +EXPORT_SYMBOL(smu_present); int smu_init (void) @@ -307,6 +447,8 @@ int smu_init (void) if (np == NULL) return -ENODEV; + printk(KERN_INFO "SMU driver %s %s\n", VERSION, AUTHOR); + if (smu_cmdbuf_abs == 0) { printk(KERN_ERR "SMU: Command buffer not allocated !\n"); return -EINVAL; @@ -318,7 +460,13 @@ int smu_init (void) memset(smu, 0, sizeof(*smu)); spin_lock_init(&smu->lock); + INIT_LIST_HEAD(&smu->cmd_list); + INIT_LIST_HEAD(&smu->cmd_i2c_list); smu->of_node = np; + smu->db_irq = NO_IRQ; + smu->msg_irq = NO_IRQ; + init_timer(&smu->i2c_timer); + /* smu_cmdbuf_abs is in the low 2G of RAM, can be converted to a * 32 bits value safely */ @@ -331,8 +479,8 @@ int smu_init (void) goto fail; } data = (u32 *)get_property(np, "reg", NULL); - of_node_put(np); if (data == NULL) { + of_node_put(np); printk(KERN_ERR "SMU: Can't find doorbell GPIO address !\n"); goto fail; } @@ -341,8 +489,31 @@ int smu_init (void) * and ack. GPIOs are at 0x50, best would be to find that out * in the device-tree though. */ - smu->db_req = 0x50 + *data; - smu->db_ack = 0x50 + *data; + smu->doorbell = *data; + if (smu->doorbell < 0x50) + smu->doorbell += 0x50; + if (np->n_intrs > 0) + smu->db_irq = np->intrs[0].line; + + of_node_put(np); + + /* Now look for the smu-interrupt GPIO */ + do { + np = of_find_node_by_name(NULL, "smu-interrupt"); + if (np == NULL) + break; + data = (u32 *)get_property(np, "reg", NULL); + if (data == NULL) { + of_node_put(np); + break; + } + smu->msg = *data; + if (smu->msg < 0x50) + smu->msg += 0x50; + if (np->n_intrs > 0) + smu->msg_irq = np->intrs[0].line; + of_node_put(np); + } while(0); /* Doorbell buffer is currently hard-coded, I didn't find a proper * device-tree entry giving the address. Best would probably to use @@ -362,3 +533,584 @@ int smu_init (void) return -ENXIO; } + + +static int smu_late_init(void) +{ + if (!smu) + return 0; + + /* + * Try to request the interrupts + */ + + if (smu->db_irq != NO_IRQ) { + if (request_irq(smu->db_irq, smu_db_intr, + SA_SHIRQ, "SMU doorbell", smu) < 0) { + printk(KERN_WARNING "SMU: can't " + "request interrupt %d\n", + smu->db_irq); + smu->db_irq = NO_IRQ; + } + } + + if (smu->msg_irq != NO_IRQ) { + if (request_irq(smu->msg_irq, smu_msg_intr, + SA_SHIRQ, "SMU message", smu) < 0) { + printk(KERN_WARNING "SMU: can't " + "request interrupt %d\n", + smu->msg_irq); + smu->msg_irq = NO_IRQ; + } + } + + return 0; +} +arch_initcall(smu_late_init); + +/* + * sysfs visibility + */ + +static void smu_expose_childs(void *unused) +{ + struct device_node *np; + + for (np = NULL; (np = of_get_next_child(smu->of_node, np)) != NULL;) { + if (device_is_compatible(np, "smu-i2c")) { + char name[32]; + u32 *reg = (u32 *)get_property(np, "reg", NULL); + + if (reg == NULL) + continue; + sprintf(name, "smu-i2c-%02x", *reg); + of_platform_device_create(np, name, &smu->of_dev->dev); + } + } + +} + +static DECLARE_WORK(smu_expose_childs_work, smu_expose_childs, NULL); + +static int smu_platform_probe(struct of_device* dev, + const struct of_device_id *match) +{ + if (!smu) + return -ENODEV; + smu->of_dev = dev; + + /* + * Ok, we are matched, now expose all i2c busses. We have to defer + * that unfortunately or it would deadlock inside the device model + */ + schedule_work(&smu_expose_childs_work); + + return 0; +} + +static struct of_device_id smu_platform_match[] = +{ + { + .type = "smu", + }, + {}, +}; + +static struct of_platform_driver smu_of_platform_driver = +{ + .name = "smu", + .match_table = smu_platform_match, + .probe = smu_platform_probe, +}; + +static int __init smu_init_sysfs(void) +{ + int rc; + + /* + * Due to sysfs bogosity, a sysdev is not a real device, so + * we should in fact create both if we want sysdev semantics + * for power management. + * For now, we don't power manage machines with an SMU chip, + * I'm a bit too far from figuring out how that works with those + * new chipsets, but that will come back and bite us + */ + rc = of_register_driver(&smu_of_platform_driver); + return 0; +} + +device_initcall(smu_init_sysfs); + +struct of_device *smu_get_ofdev(void) +{ + if (!smu) + return NULL; + return smu->of_dev; +} + +EXPORT_SYMBOL_GPL(smu_get_ofdev); + +/* + * i2c interface + */ + +static void smu_i2c_complete_command(struct smu_i2c_cmd *cmd, int fail) +{ + void (*done)(struct smu_i2c_cmd *cmd, void *misc) = cmd->done; + void *misc = cmd->misc; + unsigned long flags; + + /* Check for read case */ + if (!fail && cmd->read) { + if (cmd->pdata[0] < 1) + fail = 1; + else + memcpy(cmd->info.data, &cmd->pdata[1], + cmd->info.datalen); + } + + DPRINTK("SMU: completing, success: %d\n", !fail); + + /* Update status and mark no pending i2c command with lock + * held so nobody comes in while we dequeue an eventual + * pending next i2c command + */ + spin_lock_irqsave(&smu->lock, flags); + smu->cmd_i2c_cur = NULL; + wmb(); + cmd->status = fail ? -EIO : 0; + + /* Is there another i2c command waiting ? */ + if (!list_empty(&smu->cmd_i2c_list)) { + struct smu_i2c_cmd *newcmd; + + /* Fetch it, new current, remove from list */ + newcmd = list_entry(smu->cmd_i2c_list.next, + struct smu_i2c_cmd, link); + smu->cmd_i2c_cur = newcmd; + list_del(&cmd->link); + + /* Queue with low level smu */ + list_add_tail(&cmd->scmd.link, &smu->cmd_list); + if (smu->cmd_cur == NULL) + smu_start_cmd(); + } + spin_unlock_irqrestore(&smu->lock, flags); + + /* Call command completion handler if any */ + if (done) + done(cmd, misc); + +} + + +static void smu_i2c_retry(unsigned long data) +{ + struct smu_i2c_cmd *cmd = (struct smu_i2c_cmd *)data; + + DPRINTK("SMU: i2c failure, requeuing...\n"); + + /* requeue command simply by resetting reply_len */ + cmd->pdata[0] = 0xff; + cmd->scmd.reply_len = 0x10; + smu_queue_cmd(&cmd->scmd); +} + + +static void smu_i2c_low_completion(struct smu_cmd *scmd, void *misc) +{ + struct smu_i2c_cmd *cmd = misc; + int fail = 0; + + DPRINTK("SMU: i2c compl. stage=%d status=%x pdata[0]=%x rlen: %x\n", + cmd->stage, scmd->status, cmd->pdata[0], scmd->reply_len); + + /* Check for possible status */ + if (scmd->status < 0) + fail = 1; + else if (cmd->read) { + if (cmd->stage == 0) + fail = cmd->pdata[0] != 0; + else + fail = cmd->pdata[0] >= 0x80; + } else { + fail = cmd->pdata[0] != 0; + } + + /* Handle failures by requeuing command, after 5ms interval + */ + if (fail && --cmd->retries > 0) { + DPRINTK("SMU: i2c failure, starting timer...\n"); + smu->i2c_timer.function = smu_i2c_retry; + smu->i2c_timer.data = (unsigned long)cmd; + smu->i2c_timer.expires = jiffies + msecs_to_jiffies(5); + add_timer(&smu->i2c_timer); + return; + } + + /* If failure or stage 1, command is complete */ + if (fail || cmd->stage != 0) { + smu_i2c_complete_command(cmd, fail); + return; + } + + DPRINTK("SMU: going to stage 1\n"); + + /* Ok, initial command complete, now poll status */ + scmd->reply_buf = cmd->pdata; + scmd->reply_len = 0x10; + scmd->data_buf = cmd->pdata; + scmd->data_len = 1; + cmd->pdata[0] = 0; + cmd->stage = 1; + cmd->retries = 20; + smu_queue_cmd(scmd); +} + + +int smu_queue_i2c(struct smu_i2c_cmd *cmd) +{ + unsigned long flags; + + if (smu == NULL) + return -ENODEV; + + /* Fill most fields of scmd */ + cmd->scmd.cmd = SMU_CMD_I2C_COMMAND; + cmd->scmd.done = smu_i2c_low_completion; + cmd->scmd.misc = cmd; + cmd->scmd.reply_buf = cmd->pdata; + cmd->scmd.reply_len = 0x10; + cmd->scmd.data_buf = (u8 *)(char *)&cmd->info; + cmd->scmd.status = 1; + cmd->stage = 0; + cmd->pdata[0] = 0xff; + cmd->retries = 20; + cmd->status = 1; + + /* Check transfer type, sanitize some "info" fields + * based on transfer type and do more checking + */ + cmd->info.caddr = cmd->info.devaddr; + cmd->read = cmd->info.devaddr & 0x01; + switch(cmd->info.type) { + case SMU_I2C_TRANSFER_SIMPLE: + memset(&cmd->info.sublen, 0, 4); + break; + case SMU_I2C_TRANSFER_COMBINED: + cmd->info.devaddr &= 0xfe; + case SMU_I2C_TRANSFER_STDSUB: + if (cmd->info.sublen > 3) + return -EINVAL; + break; + default: + return -EINVAL; + } + + /* Finish setting up command based on transfer direction + */ + if (cmd->read) { + if (cmd->info.datalen > SMU_I2C_READ_MAX) + return -EINVAL; + memset(cmd->info.data, 0xff, cmd->info.datalen); + cmd->scmd.data_len = 9; + } else { + if (cmd->info.datalen > SMU_I2C_WRITE_MAX) + return -EINVAL; + cmd->scmd.data_len = 9 + cmd->info.datalen; + } + + DPRINTK("SMU: i2c enqueuing command\n"); + DPRINTK("SMU: %s, len=%d bus=%x addr=%x sub0=%x type=%x\n", + cmd->read ? "read" : "write", cmd->info.datalen, + cmd->info.bus, cmd->info.caddr, + cmd->info.subaddr[0], cmd->info.type); + + + /* Enqueue command in i2c list, and if empty, enqueue also in + * main command list + */ + spin_lock_irqsave(&smu->lock, flags); + if (smu->cmd_i2c_cur == NULL) { + smu->cmd_i2c_cur = cmd; + list_add_tail(&cmd->scmd.link, &smu->cmd_list); + if (smu->cmd_cur == NULL) + smu_start_cmd(); + } else + list_add_tail(&cmd->link, &smu->cmd_i2c_list); + spin_unlock_irqrestore(&smu->lock, flags); + + return 0; +} + + + +/* + * Userland driver interface + */ + + +static LIST_HEAD(smu_clist); +static DEFINE_SPINLOCK(smu_clist_lock); + +enum smu_file_mode { + smu_file_commands, + smu_file_events, + smu_file_closing +}; + +struct smu_private +{ + struct list_head list; + enum smu_file_mode mode; + int busy; + struct smu_cmd cmd; + spinlock_t lock; + wait_queue_head_t wait; + u8 buffer[SMU_MAX_DATA]; +}; + + +static int smu_open(struct inode *inode, struct file *file) +{ + struct smu_private *pp; + unsigned long flags; + + pp = kmalloc(sizeof(struct smu_private), GFP_KERNEL); + if (pp == 0) + return -ENOMEM; + memset(pp, 0, sizeof(struct smu_private)); + spin_lock_init(&pp->lock); + pp->mode = smu_file_commands; + init_waitqueue_head(&pp->wait); + + spin_lock_irqsave(&smu_clist_lock, flags); + list_add(&pp->list, &smu_clist); + spin_unlock_irqrestore(&smu_clist_lock, flags); + file->private_data = pp; + + return 0; +} + + +static void smu_user_cmd_done(struct smu_cmd *cmd, void *misc) +{ + struct smu_private *pp = misc; + + wake_up_all(&pp->wait); +} + + +static ssize_t smu_write(struct file *file, const char __user *buf, + size_t count, loff_t *ppos) +{ + struct smu_private *pp = file->private_data; + unsigned long flags; + struct smu_user_cmd_hdr hdr; + int rc = 0; + + if (pp->busy) + return -EBUSY; + else if (copy_from_user(&hdr, buf, sizeof(hdr))) + return -EFAULT; + else if (hdr.cmdtype == SMU_CMDTYPE_WANTS_EVENTS) { + pp->mode = smu_file_events; + return 0; + } else if (hdr.cmdtype != SMU_CMDTYPE_SMU) + return -EINVAL; + else if (pp->mode != smu_file_commands) + return -EBADFD; + else if (hdr.data_len > SMU_MAX_DATA) + return -EINVAL; + + spin_lock_irqsave(&pp->lock, flags); + if (pp->busy) { + spin_unlock_irqrestore(&pp->lock, flags); + return -EBUSY; + } + pp->busy = 1; + pp->cmd.status = 1; + spin_unlock_irqrestore(&pp->lock, flags); + + if (copy_from_user(pp->buffer, buf + sizeof(hdr), hdr.data_len)) { + pp->busy = 0; + return -EFAULT; + } + + pp->cmd.cmd = hdr.cmd; + pp->cmd.data_len = hdr.data_len; + pp->cmd.reply_len = SMU_MAX_DATA; + pp->cmd.data_buf = pp->buffer; + pp->cmd.reply_buf = pp->buffer; + pp->cmd.done = smu_user_cmd_done; + pp->cmd.misc = pp; + rc = smu_queue_cmd(&pp->cmd); + if (rc < 0) + return rc; + return count; +} + + +static ssize_t smu_read_command(struct file *file, struct smu_private *pp, + char __user *buf, size_t count) +{ + DECLARE_WAITQUEUE(wait, current); + struct smu_user_reply_hdr hdr; + unsigned long flags; + int size, rc = 0; + + if (!pp->busy) + return 0; + if (count < sizeof(struct smu_user_reply_hdr)) + return -EOVERFLOW; + spin_lock_irqsave(&pp->lock, flags); + if (pp->cmd.status == 1) { + if (file->f_flags & O_NONBLOCK) + return -EAGAIN; + add_wait_queue(&pp->wait, &wait); + for (;;) { + set_current_state(TASK_INTERRUPTIBLE); + rc = 0; + if (pp->cmd.status != 1) + break; + rc = -ERESTARTSYS; + if (signal_pending(current)) + break; + spin_unlock_irqrestore(&pp->lock, flags); + schedule(); + spin_lock_irqsave(&pp->lock, flags); + } + set_current_state(TASK_RUNNING); + remove_wait_queue(&pp->wait, &wait); + } + spin_unlock_irqrestore(&pp->lock, flags); + if (rc) + return rc; + if (pp->cmd.status != 0) + pp->cmd.reply_len = 0; + size = sizeof(hdr) + pp->cmd.reply_len; + if (count < size) + size = count; + rc = size; + hdr.status = pp->cmd.status; + hdr.reply_len = pp->cmd.reply_len; + if (copy_to_user(buf, &hdr, sizeof(hdr))) + return -EFAULT; + size -= sizeof(hdr); + if (size && copy_to_user(buf + sizeof(hdr), pp->buffer, size)) + return -EFAULT; + pp->busy = 0; + + return rc; +} + + +static ssize_t smu_read_events(struct file *file, struct smu_private *pp, + char __user *buf, size_t count) +{ + /* Not implemented */ + msleep_interruptible(1000); + return 0; +} + + +static ssize_t smu_read(struct file *file, char __user *buf, + size_t count, loff_t *ppos) +{ + struct smu_private *pp = file->private_data; + + if (pp->mode == smu_file_commands) + return smu_read_command(file, pp, buf, count); + if (pp->mode == smu_file_events) + return smu_read_events(file, pp, buf, count); + + return -EBADFD; +} + +static unsigned int smu_fpoll(struct file *file, poll_table *wait) +{ + struct smu_private *pp = file->private_data; + unsigned int mask = 0; + unsigned long flags; + + if (pp == 0) + return 0; + + if (pp->mode == smu_file_commands) { + poll_wait(file, &pp->wait, wait); + + spin_lock_irqsave(&pp->lock, flags); + if (pp->busy && pp->cmd.status != 1) + mask |= POLLIN; + spin_unlock_irqrestore(&pp->lock, flags); + } if (pp->mode == smu_file_events) { + /* Not yet implemented */ + } + return mask; +} + +static int smu_release(struct inode *inode, struct file *file) +{ + struct smu_private *pp = file->private_data; + unsigned long flags; + unsigned int busy; + + if (pp == 0) + return 0; + + file->private_data = NULL; + + /* Mark file as closing to avoid races with new request */ + spin_lock_irqsave(&pp->lock, flags); + pp->mode = smu_file_closing; + busy = pp->busy; + + /* Wait for any pending request to complete */ + if (busy && pp->cmd.status == 1) { + DECLARE_WAITQUEUE(wait, current); + + add_wait_queue(&pp->wait, &wait); + for (;;) { + set_current_state(TASK_UNINTERRUPTIBLE); + if (pp->cmd.status != 1) + break; + spin_lock_irqsave(&pp->lock, flags); + schedule(); + spin_unlock_irqrestore(&pp->lock, flags); + } + set_current_state(TASK_RUNNING); + remove_wait_queue(&pp->wait, &wait); + } + spin_unlock_irqrestore(&pp->lock, flags); + + spin_lock_irqsave(&smu_clist_lock, flags); + list_del(&pp->list); + spin_unlock_irqrestore(&smu_clist_lock, flags); + kfree(pp); + + return 0; +} + + +static struct file_operations smu_device_fops __pmacdata = { + .llseek = no_llseek, + .read = smu_read, + .write = smu_write, + .poll = smu_fpoll, + .open = smu_open, + .release = smu_release, +}; + +static struct miscdevice pmu_device __pmacdata = { + MISC_DYNAMIC_MINOR, "smu", &smu_device_fops +}; + +static int smu_device_init(void) +{ + if (!smu) + return -ENODEV; + if (misc_register(&pmu_device) < 0) + printk(KERN_ERR "via-pmu: cannot register misc device.\n"); + return 0; +} +device_initcall(smu_device_init); diff --git a/drivers/macintosh/therm_adt746x.c b/drivers/macintosh/therm_adt746x.c index c9ca1118e449..f38696622eb4 100644 --- a/drivers/macintosh/therm_adt746x.c +++ b/drivers/macintosh/therm_adt746x.c @@ -599,7 +599,7 @@ thermostat_init(void) sensor_location[2] = "?"; } - of_dev = of_platform_device_create(np, "temperatures"); + of_dev = of_platform_device_create(np, "temperatures", NULL); if (of_dev == NULL) { printk(KERN_ERR "Can't register temperatures device !\n"); diff --git a/drivers/macintosh/therm_pm72.c b/drivers/macintosh/therm_pm72.c index 703e31973314..cc507ceef153 100644 --- a/drivers/macintosh/therm_pm72.c +++ b/drivers/macintosh/therm_pm72.c @@ -2051,7 +2051,7 @@ static int __init therm_pm72_init(void) return -ENODEV; } } - of_dev = of_platform_device_create(np, "temperature"); + of_dev = of_platform_device_create(np, "temperature", NULL); if (of_dev == NULL) { printk(KERN_ERR "Can't register FCU platform device !\n"); return -ENODEV; diff --git a/drivers/macintosh/therm_windtunnel.c b/drivers/macintosh/therm_windtunnel.c index cbb72eb0426d..6aaa1df1a64e 100644 --- a/drivers/macintosh/therm_windtunnel.c +++ b/drivers/macintosh/therm_windtunnel.c @@ -504,7 +504,7 @@ g4fan_init( void ) } if( !(np=of_find_node_by_name(NULL, "fan")) ) return -ENODEV; - x.of_dev = of_platform_device_create( np, "temperature" ); + x.of_dev = of_platform_device_create(np, "temperature", NULL); of_node_put( np ); if( !x.of_dev ) { diff --git a/include/asm-ppc/macio.h b/include/asm-ppc/macio.h index a481b772d154..b553dd4b139e 100644 --- a/include/asm-ppc/macio.h +++ b/include/asm-ppc/macio.h @@ -1,7 +1,6 @@ #ifndef __MACIO_ASIC_H__ #define __MACIO_ASIC_H__ -#include #include extern struct bus_type macio_bus_type; diff --git a/include/asm-ppc/of_device.h b/include/asm-ppc/of_device.h index 4b264cfd3998..575bce418f80 100644 --- a/include/asm-ppc/of_device.h +++ b/include/asm-ppc/of_device.h @@ -2,6 +2,7 @@ #define __OF_DEVICE_H__ #include +#include #include /* @@ -55,7 +56,9 @@ extern int of_register_driver(struct of_platform_driver *drv); extern void of_unregister_driver(struct of_platform_driver *drv); extern int of_device_register(struct of_device *ofdev); extern void of_device_unregister(struct of_device *ofdev); -extern struct of_device *of_platform_device_create(struct device_node *np, const char *bus_id); +extern struct of_device *of_platform_device_create(struct device_node *np, + const char *bus_id, + struct device *parent); extern void of_release_dev(struct device *dev); #endif /* __OF_DEVICE_H__ */ diff --git a/include/asm-ppc64/smu.h b/include/asm-ppc64/smu.h index 10b4397af9aa..dee8eefe47bc 100644 --- a/include/asm-ppc64/smu.h +++ b/include/asm-ppc64/smu.h @@ -1,22 +1,379 @@ +#ifndef _SMU_H +#define _SMU_H + /* * Definitions for talking to the SMU chip in newer G5 PowerMacs */ #include +#include /* - * Basic routines for use by architecture. To be extended as - * we understand more of the chip + * Known SMU commands + * + * Most of what is below comes from looking at the Open Firmware driver, + * though this is still incomplete and could use better documentation here + * or there... + */ + + +/* + * Partition info commands + * + * I do not know what those are for at this point + */ +#define SMU_CMD_PARTITION_COMMAND 0x3e + + +/* + * Fan control + * + * This is a "mux" for fan control commands, first byte is the + * "sub" command. + */ +#define SMU_CMD_FAN_COMMAND 0x4a + + +/* + * Battery access + * + * Same command number as the PMU, could it be same syntax ? + */ +#define SMU_CMD_BATTERY_COMMAND 0x6f +#define SMU_CMD_GET_BATTERY_INFO 0x00 + +/* + * Real time clock control + * + * This is a "mux", first data byte contains the "sub" command. + * The "RTC" part of the SMU controls the date, time, powerup + * timer, but also a PRAM + * + * Dates are in BCD format on 7 bytes: + * [sec] [min] [hour] [weekday] [month day] [month] [year] + * with month being 1 based and year minus 100 + */ +#define SMU_CMD_RTC_COMMAND 0x8e +#define SMU_CMD_RTC_SET_PWRUP_TIMER 0x00 /* i: 7 bytes date */ +#define SMU_CMD_RTC_GET_PWRUP_TIMER 0x01 /* o: 7 bytes date */ +#define SMU_CMD_RTC_STOP_PWRUP_TIMER 0x02 +#define SMU_CMD_RTC_SET_PRAM_BYTE_ACC 0x20 /* i: 1 byte (address?) */ +#define SMU_CMD_RTC_SET_PRAM_AUTOINC 0x21 /* i: 1 byte (data?) */ +#define SMU_CMD_RTC_SET_PRAM_LO_BYTES 0x22 /* i: 10 bytes */ +#define SMU_CMD_RTC_SET_PRAM_HI_BYTES 0x23 /* i: 10 bytes */ +#define SMU_CMD_RTC_GET_PRAM_BYTE 0x28 /* i: 1 bytes (address?) */ +#define SMU_CMD_RTC_GET_PRAM_LO_BYTES 0x29 /* o: 10 bytes */ +#define SMU_CMD_RTC_GET_PRAM_HI_BYTES 0x2a /* o: 10 bytes */ +#define SMU_CMD_RTC_SET_DATETIME 0x80 /* i: 7 bytes date */ +#define SMU_CMD_RTC_GET_DATETIME 0x81 /* o: 7 bytes date */ + + /* + * i2c commands + * + * To issue an i2c command, first is to send a parameter block to the + * the SMU. This is a command of type 0x9a with 9 bytes of header + * eventually followed by data for a write: + * + * 0: bus number (from device-tree usually, SMU has lots of busses !) + * 1: transfer type/format (see below) + * 2: device address. For combined and combined4 type transfers, this + * is the "write" version of the address (bit 0x01 cleared) + * 3: subaddress length (0..3) + * 4: subaddress byte 0 (or only byte for subaddress length 1) + * 5: subaddress byte 1 + * 6: subaddress byte 2 + * 7: combined address (device address for combined mode data phase) + * 8: data length + * + * The transfer types are the same good old Apple ones it seems, + * that is: + * - 0x00: Simple transfer + * - 0x01: Subaddress transfer (addr write + data tx, no restart) + * - 0x02: Combined transfer (addr write + restart + data tx) + * + * This is then followed by actual data for a write. + * + * At this point, the OF driver seems to have a limitation on transfer + * sizes of 0xd bytes on reads and 0x5 bytes on writes. I do not know + * wether this is just an OF limit due to some temporary buffer size + * or if this is an SMU imposed limit. This driver has the same limitation + * for now as I use a 0x10 bytes temporary buffer as well + * + * Once that is completed, a response is expected from the SMU. This is + * obtained via a command of type 0x9a with a length of 1 byte containing + * 0 as the data byte. OF also fills the rest of the data buffer with 0xff's + * though I can't tell yet if this is actually necessary. Once this command + * is complete, at this point, all I can tell is what OF does. OF tests + * byte 0 of the reply: + * - on read, 0xfe or 0xfc : bus is busy, wait (see below) or nak ? + * - on read, 0x00 or 0x01 : reply is in buffer (after the byte 0) + * - on write, < 0 -> failure (immediate exit) + * - else, OF just exists (without error, weird) + * + * So on read, there is this wait-for-busy thing when getting a 0xfc or + * 0xfe result. OF does a loop of up to 64 retries, waiting 20ms and + * doing the above again until either the retries expire or the result + * is no longer 0xfe or 0xfc + * + * The Darwin I2C driver is less subtle though. On any non-success status + * from the response command, it waits 5ms and tries again up to 20 times, + * it doesn't differenciate between fatal errors or "busy" status. + * + * This driver provides an asynchronous paramblock based i2c command + * interface to be used either directly by low level code or by a higher + * level driver interfacing to the linux i2c layer. The current + * implementation of this relies on working timers & timer interrupts + * though, so be careful of calling context for now. This may be "fixed" + * in the future by adding a polling facility. + */ +#define SMU_CMD_I2C_COMMAND 0x9a + /* transfer types */ +#define SMU_I2C_TRANSFER_SIMPLE 0x00 +#define SMU_I2C_TRANSFER_STDSUB 0x01 +#define SMU_I2C_TRANSFER_COMBINED 0x02 + +/* + * Power supply control + * + * The "sub" command is an ASCII string in the data, the + * data lenght is that of the string. + * + * The VSLEW command can be used to get or set the voltage slewing. + * - lenght 5 (only "VSLEW") : it returns "DONE" and 3 bytes of + * reply at data offset 6, 7 and 8. + * - lenght 8 ("VSLEWxyz") has 3 additional bytes appended, and is + * used to set the voltage slewing point. The SMU replies with "DONE" + * I yet have to figure out their exact meaning of those 3 bytes in + * both cases. + * + */ +#define SMU_CMD_POWER_COMMAND 0xaa +#define SMU_CMD_POWER_RESTART "RESTART" +#define SMU_CMD_POWER_SHUTDOWN "SHUTDOWN" +#define SMU_CMD_POWER_VOLTAGE_SLEW "VSLEW" + +/* Misc commands + * + * This command seem to be a grab bag of various things + */ +#define SMU_CMD_MISC_df_COMMAND 0xdf +#define SMU_CMD_MISC_df_SET_DISPLAY_LIT 0x02 /* i: 1 byte */ +#define SMU_CMD_MISC_df_NMI_OPTION 0x04 + +/* + * Version info commands + * + * I haven't quite tried to figure out how these work + */ +#define SMU_CMD_VERSION_COMMAND 0xea + + +/* + * Misc commands + * + * This command seem to be a grab bag of various things + */ +#define SMU_CMD_MISC_ee_COMMAND 0xee +#define SMU_CMD_MISC_ee_GET_DATABLOCK_REC 0x02 +#define SMU_CMD_MISC_ee_LEDS_CTRL 0x04 /* i: 00 (00,01) [00] */ +#define SMU_CMD_MISC_ee_GET_DATA 0x05 /* i: 00 , o: ?? */ + + + +/* + * - Kernel side interface - + */ + +#ifdef __KERNEL__ + +/* + * Asynchronous SMU commands + * + * Fill up this structure and submit it via smu_queue_command(), + * and get notified by the optional done() callback, or because + * status becomes != 1 + */ + +struct smu_cmd; + +struct smu_cmd +{ + /* public */ + u8 cmd; /* command */ + int data_len; /* data len */ + int reply_len; /* reply len */ + void *data_buf; /* data buffer */ + void *reply_buf; /* reply buffer */ + int status; /* command status */ + void (*done)(struct smu_cmd *cmd, void *misc); + void *misc; + + /* private */ + struct list_head link; +}; + +/* + * Queues an SMU command, all fields have to be initialized + */ +extern int smu_queue_cmd(struct smu_cmd *cmd); + +/* + * Simple command wrapper. This structure embeds a small buffer + * to ease sending simple SMU commands from the stack + */ +struct smu_simple_cmd +{ + struct smu_cmd cmd; + u8 buffer[16]; +}; + +/* + * Queues a simple command. All fields will be initialized by that + * function + */ +extern int smu_queue_simple(struct smu_simple_cmd *scmd, u8 command, + unsigned int data_len, + void (*done)(struct smu_cmd *cmd, void *misc), + void *misc, + ...); + +/* + * Completion helper. Pass it to smu_queue_simple or as 'done' + * member to smu_queue_cmd, it will call complete() on the struct + * completion passed in the "misc" argument + */ +extern void smu_done_complete(struct smu_cmd *cmd, void *misc); + +/* + * Synchronous helpers. Will spin-wait for completion of a command + */ +extern void smu_spinwait_cmd(struct smu_cmd *cmd); + +static inline void smu_spinwait_simple(struct smu_simple_cmd *scmd) +{ + smu_spinwait_cmd(&scmd->cmd); +} + +/* + * Poll routine to call if blocked with irqs off + */ +extern void smu_poll(void); + + +/* + * Init routine, presence check.... */ extern int smu_init(void); extern int smu_present(void); +struct of_device; +extern struct of_device *smu_get_ofdev(void); + + +/* + * Common command wrappers + */ extern void smu_shutdown(void); extern void smu_restart(void); -extern int smu_get_rtc_time(struct rtc_time *time); -extern int smu_set_rtc_time(struct rtc_time *time); +struct rtc_time; +extern int smu_get_rtc_time(struct rtc_time *time, int spinwait); +extern int smu_set_rtc_time(struct rtc_time *time, int spinwait); /* * SMU command buffer absolute address, exported by pmac_setup, * this is allocated very early during boot. */ extern unsigned long smu_cmdbuf_abs; + + +/* + * Kenrel asynchronous i2c interface + */ + +/* SMU i2c header, exactly matches i2c header on wire */ +struct smu_i2c_param +{ + u8 bus; /* SMU bus ID (from device tree) */ + u8 type; /* i2c transfer type */ + u8 devaddr; /* device address (includes direction) */ + u8 sublen; /* subaddress length */ + u8 subaddr[3]; /* subaddress */ + u8 caddr; /* combined address, filled by SMU driver */ + u8 datalen; /* length of transfer */ + u8 data[7]; /* data */ +}; + +#define SMU_I2C_READ_MAX 0x0d +#define SMU_I2C_WRITE_MAX 0x05 + +struct smu_i2c_cmd +{ + /* public */ + struct smu_i2c_param info; + void (*done)(struct smu_i2c_cmd *cmd, void *misc); + void *misc; + int status; /* 1 = pending, 0 = ok, <0 = fail */ + + /* private */ + struct smu_cmd scmd; + int read; + int stage; + int retries; + u8 pdata[0x10]; + struct list_head link; +}; + +/* + * Call this to queue an i2c command to the SMU. You must fill info, + * including info.data for a write, done and misc. + * For now, no polling interface is provided so you have to use completion + * callback. + */ +extern int smu_queue_i2c(struct smu_i2c_cmd *cmd); + + +#endif /* __KERNEL__ */ + +/* + * - Userland interface - + */ + +/* + * A given instance of the device can be configured for 2 different + * things at the moment: + * + * - sending SMU commands (default at open() time) + * - receiving SMU events (not yet implemented) + * + * Commands are written with write() of a command block. They can be + * "driver" commands (for example to switch to event reception mode) + * or real SMU commands. They are made of a header followed by command + * data if any. + * + * For SMU commands (not for driver commands), you can then read() back + * a reply. The reader will be blocked or not depending on how the device + * file is opened. poll() isn't implemented yet. The reply will consist + * of a header as well, followed by the reply data if any. You should + * always provide a buffer large enough for the maximum reply data, I + * recommand one page. + * + * It is illegal to send SMU commands through a file descriptor configured + * for events reception + * + */ +struct smu_user_cmd_hdr +{ + __u32 cmdtype; +#define SMU_CMDTYPE_SMU 0 /* SMU command */ +#define SMU_CMDTYPE_WANTS_EVENTS 1 /* switch fd to events mode */ + + __u8 cmd; /* SMU command byte */ + __u32 data_len; /* Lenght of data following */ +}; + +struct smu_user_reply_hdr +{ + __u32 status; /* Command status */ + __u32 reply_len; /* Lenght of data follwing */ +}; + +#endif /* _SMU_H */ From e3fc4cc17ac4dbadab0ba0d5c8233d3b18170d4a Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Thu, 22 Sep 2005 21:44:07 -0700 Subject: [PATCH 069/352] [PATCH] corrections to top-level README Corrections to the recent top-level README changes. Signed-off-by: Randy Dunlap Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- README | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/README b/README index 2b5844d8cfa0..d1edcc7adabe 100644 --- a/README +++ b/README @@ -151,7 +151,7 @@ CONFIGURING the kernel: your existing ./.config file. "make silentoldconfig" Like above, but avoids cluttering the screen - with question already answered. + with questions already answered. NOTES on "make config": - having unnecessary drivers will make the kernel bigger, and can @@ -199,9 +199,9 @@ COMPILING the kernel: are installing a new kernel with the same version number as your working kernel, make a backup of your modules directory before you do a "make modules_install". - In alternative, before compiling, edit your Makefile and change the - "EXTRAVERSION" line - its content is appended to the regular kernel - version. + Alternatively, before compiling, use the kernel config option + "LOCALVERSION" to append a unique suffix to the regular kernel version. + LOCALVERSION can be set in the "General Setup" menu. - In order to boot your new kernel, you'll need to copy the kernel image (e.g. .../linux/arch/i386/boot/bzImage after compilation) From 98b4f5929ce5e616d0d0e13c71baf50083ab7397 Mon Sep 17 00:00:00 2001 From: Chuck Ebbert <76306.1226@compuserve.com> Date: Thu, 22 Sep 2005 21:44:08 -0700 Subject: [PATCH 070/352] [PATCH] atiixp_modem printk fixes Correctly identify atiixp_modem in its error messages. Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com> Cc: Vojtech Pavlik Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- sound/pci/atiixp_modem.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/sound/pci/atiixp_modem.c b/sound/pci/atiixp_modem.c index 8a59598167f9..c1a239a4dac6 100644 --- a/sound/pci/atiixp_modem.c +++ b/sound/pci/atiixp_modem.c @@ -405,7 +405,7 @@ static int snd_atiixp_acquire_codec(atiixp_t *chip) while (atiixp_read(chip, PHYS_OUT_ADDR) & ATI_REG_PHYS_OUT_ADDR_EN) { if (! timeout--) { - snd_printk(KERN_WARNING "atiixp: codec acquire timeout\n"); + snd_printk(KERN_WARNING "atiixp-modem: codec acquire timeout\n"); return -EBUSY; } udelay(1); @@ -436,7 +436,7 @@ static unsigned short snd_atiixp_codec_read(atiixp_t *chip, unsigned short codec } while (--timeout); /* time out may happen during reset */ if (reg < 0x7c) - snd_printk(KERN_WARNING "atiixp: codec read timeout (reg %x)\n", reg); + snd_printk(KERN_WARNING "atiixp-modem: codec read timeout (reg %x)\n", reg); return 0xffff; } @@ -498,7 +498,7 @@ static int snd_atiixp_aclink_reset(atiixp_t *chip) do_delay(); atiixp_update(chip, CMD, ATI_REG_CMD_AC_RESET, ATI_REG_CMD_AC_RESET); if (--timeout) { - snd_printk(KERN_ERR "atiixp: codec reset timeout\n"); + snd_printk(KERN_ERR "atiixp-modem: codec reset timeout\n"); break; } } @@ -552,7 +552,7 @@ static int snd_atiixp_codec_detect(atiixp_t *chip) atiixp_write(chip, IER, 0); /* disable irqs */ if ((chip->codec_not_ready_bits & ALL_CODEC_NOT_READY) == ALL_CODEC_NOT_READY) { - snd_printk(KERN_ERR "atiixp: no codec detected!\n"); + snd_printk(KERN_ERR "atiixp-modem: no codec detected!\n"); return -ENXIO; } return 0; @@ -635,7 +635,7 @@ static void snd_atiixp_xrun_dma(atiixp_t *chip, atiixp_dma_t *dma) { if (! dma->substream || ! dma->running) return; - snd_printdd("atiixp: XRUN detected (DMA %d)\n", dma->ops->type); + snd_printdd("atiixp-modem: XRUN detected (DMA %d)\n", dma->ops->type); snd_pcm_stop(dma->substream, SNDRV_PCM_STATE_XRUN); } @@ -1081,14 +1081,14 @@ static int __devinit snd_atiixp_mixer_new(atiixp_t *chip, int clock) ac97.scaps = AC97_SCAP_SKIP_AUDIO; if ((err = snd_ac97_mixer(pbus, &ac97, &chip->ac97[i])) < 0) { chip->ac97[i] = NULL; /* to be sure */ - snd_printdd("atiixp: codec %d not available for modem\n", i); + snd_printdd("atiixp-modem: codec %d not available for modem\n", i); continue; } codec_count++; } if (! codec_count) { - snd_printk(KERN_ERR "atiixp: no codec available\n"); + snd_printk(KERN_ERR "atiixp-modem: no codec available\n"); return -ENODEV; } @@ -1159,7 +1159,7 @@ static void __devinit snd_atiixp_proc_init(atiixp_t *chip) { snd_info_entry_t *entry; - if (! snd_card_proc_new(chip->card, "atiixp", &entry)) + if (! snd_card_proc_new(chip->card, "atiixp-modem", &entry)) snd_info_set_text_ops(entry, chip, 1024, snd_atiixp_proc_read); } From 0cdc82ee1ae36c1ae4631fc3a782faeb0b90df38 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Thu, 22 Sep 2005 21:44:09 -0700 Subject: [PATCH 071/352] [PATCH] mesh scsi: fix error handling The PowerMac mesh SCSI driver had some missing error handling which would trigger warnings due to lack of handling of return value from scsi_add_host. This fixes it. Signed-off-by: Benjamin Herrenschmidt Cc: James Bottomley Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/scsi/mesh.c | 29 +++++++++++++++++++++-------- 1 file changed, 21 insertions(+), 8 deletions(-) diff --git a/drivers/scsi/mesh.c b/drivers/scsi/mesh.c index a4857db4f9b8..b235556b7b65 100644 --- a/drivers/scsi/mesh.c +++ b/drivers/scsi/mesh.c @@ -1959,22 +1959,35 @@ static int mesh_probe(struct macio_dev *mdev, const struct of_device_id *match) /* Set it up */ mesh_init(ms); - /* XXX FIXME: error should be fatal */ - if (request_irq(ms->meshintr, do_mesh_interrupt, 0, "MESH", ms)) + /* Request interrupt */ + if (request_irq(ms->meshintr, do_mesh_interrupt, 0, "MESH", ms)) { printk(KERN_ERR "MESH: can't get irq %d\n", ms->meshintr); + goto out_shutdown; + } - /* XXX FIXME: handle failure */ - scsi_add_host(mesh_host, &mdev->ofdev.dev); + /* Add scsi host & scan */ + if (scsi_add_host(mesh_host, &mdev->ofdev.dev)) + goto out_release_irq; scsi_scan_host(mesh_host); return 0; -out_unmap: + out_release_irq: + free_irq(ms->meshintr, ms); + out_shutdown: + /* shutdown & reset bus in case of error or macos can be confused + * at reboot if the bus was set to synchronous mode already + */ + mesh_shutdown(mdev); + set_mesh_power(ms, 0); + pci_free_consistent(macio_get_pci_dev(mdev), ms->dma_cmd_size, + ms->dma_cmd_space, ms->dma_cmd_bus); + out_unmap: iounmap(ms->dma); iounmap(ms->mesh); -out_free: + out_free: scsi_host_put(mesh_host); -out_release: + out_release: macio_release_resources(mdev); return -ENODEV; @@ -2001,7 +2014,7 @@ static int mesh_remove(struct macio_dev *mdev) /* Free DMA commands memory */ pci_free_consistent(macio_get_pci_dev(mdev), ms->dma_cmd_size, - ms->dma_cmd_space, ms->dma_cmd_bus); + ms->dma_cmd_space, ms->dma_cmd_bus); /* Release memory resources */ macio_release_resources(mdev); From eafb42707b21beb42bba4eae7b742f837ee9d2e0 Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Thu, 22 Sep 2005 21:44:10 -0700 Subject: [PATCH 072/352] [PATCH] __kmalloc: Generate BUG if size requested is too large. I had an issue on ia64 where I got a bug in kernel/workqueue because kzalloc returned a NULL pointer due to the task structure getting too big for the slab allocator. Usually these cases are caught by the kmalloc macro in include/linux/slab.h. Compilation will fail if a too big value is passed to kmalloc. However, kzalloc uses __kmalloc which has no check for that. This patch makes __kmalloc bug if a too large entity is requested. Signed-off-by: Christoph Lameter Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/slab.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/mm/slab.c b/mm/slab.c index c9adfce00405..ad113c431e39 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -2907,8 +2907,7 @@ void *__kmalloc(size_t size, unsigned int __nocast flags) * functions. */ cachep = __find_general_cachep(size, flags); - if (unlikely(cachep == NULL)) - return NULL; + BUG_ON(!cachep); /* Allocation size too large for kmalloc */ return __cache_alloc(cachep, flags); } EXPORT_SYMBOL(__kmalloc); From 8686bcd0a5f5e3f599ed9f1028ec9e449e7b87e3 Mon Sep 17 00:00:00 2001 From: Pavel Machek Date: Thu, 22 Sep 2005 21:44:11 -0700 Subject: [PATCH 073/352] [PATCH] swsusp: fix comments Fix comments in swsusp. Signed-off-by: Pavel Machek Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/power/power.h | 2 +- kernel/power/swsusp.c | 10 +++++++--- 2 files changed, 8 insertions(+), 4 deletions(-) diff --git a/kernel/power/power.h b/kernel/power/power.h index cd6a3493cc0d..9c9167d910dd 100644 --- a/kernel/power/power.h +++ b/kernel/power/power.h @@ -1,7 +1,7 @@ #include #include -/* With SUSPEND_CONSOLE defined, it suspend looks *really* cool, but +/* With SUSPEND_CONSOLE defined suspend looks *really* cool, but we probably do not take enough locks for switching consoles, etc, so bad things might happen. */ diff --git a/kernel/power/swsusp.c b/kernel/power/swsusp.c index 353f37f1ba28..1cc9ff25e479 100644 --- a/kernel/power/swsusp.c +++ b/kernel/power/swsusp.c @@ -363,7 +363,7 @@ static void lock_swapdevices(void) } /** - * write_swap_page - Write one page to a fresh swap location. + * write_page - Write one page to a fresh swap location. * @addr: Address we're writing. * @loc: Place to store the entry we used. * @@ -863,6 +863,9 @@ static int alloc_image_pages(void) return 0; } +/* Free pages we allocated for suspend. Suspend pages are alocated + * before atomic copy, so we need to free them after resume. + */ void swsusp_free(void) { BUG_ON(PageNosave(virt_to_page(pagedir_save))); @@ -1213,8 +1216,9 @@ static struct pbe * swsusp_pagedir_relocate(struct pbe *pblist) free_pagedir(pblist); free_eaten_memory(); pblist = NULL; - } - else + /* Is this even worth handling? It should never ever happen, and we + have just lost user's state, anyway... */ + } else printk("swsusp: Relocated %d pages\n", rel); return pblist; From 3a02d6c051cf3c214aab38e4330b4bcec5f6e3f8 Mon Sep 17 00:00:00 2001 From: Paolo 'Blaisorblade' Giarrusso Date: Thu, 22 Sep 2005 21:44:12 -0700 Subject: [PATCH 074/352] [PATCH] uml: don't remove umid files in conflict case Only remove the UML pidfile and management socket if we created them. Currently in case two UMLs are started with the same umid, the second will remove the first's ones. Probably we should also panic() at that point, not sure however. Signed-off-by: Paolo 'Blaisorblade' Giarrusso Cc: Jeff Dike Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/kernel/umid.c | 30 +++++++++++++++++++----------- 1 file changed, 19 insertions(+), 11 deletions(-) diff --git a/arch/um/kernel/umid.c b/arch/um/kernel/umid.c index 186c28885016..251d277fff2a 100644 --- a/arch/um/kernel/umid.c +++ b/arch/um/kernel/umid.c @@ -31,6 +31,8 @@ static char *uml_dir = UML_DIR; /* Changed by set_umid */ static int umid_is_random = 1; static int umid_inited = 0; +/* Have we created the files? Should we remove them? */ +static int umid_owned = 0; static int make_umid(int (*printer)(const char *fmt, ...)); @@ -82,20 +84,21 @@ int __init umid_file_name(char *name, char *buf, int len) extern int tracing_pid; -static int __init create_pid_file(void) +static void __init create_pid_file(void) { char file[strlen(uml_dir) + UMID_LEN + sizeof("/pid\0")]; char pid[sizeof("nnnnn\0")]; int fd, n; - if(umid_file_name("pid", file, sizeof(file))) return 0; + if(umid_file_name("pid", file, sizeof(file))) + return; fd = os_open_file(file, of_create(of_excl(of_rdwr(OPENFLAGS()))), 0644); if(fd < 0){ printf("Open of machine pid file \"%s\" failed: %s\n", file, strerror(-fd)); - return 0; + return; } sprintf(pid, "%d\n", os_getpid()); @@ -103,7 +106,6 @@ static int __init create_pid_file(void) if(n != strlen(pid)) printf("Write of pid file failed - err = %d\n", -n); os_close_file(fd); - return 0; } static int actually_do_remove(char *dir) @@ -147,7 +149,8 @@ static int actually_do_remove(char *dir) void remove_umid_dir(void) { char dir[strlen(uml_dir) + UMID_LEN + 1]; - if(!umid_inited) return; + if (!umid_owned) + return; sprintf(dir, "%s%s", uml_dir, umid); actually_do_remove(dir); @@ -155,11 +158,12 @@ void remove_umid_dir(void) char *get_umid(int only_if_set) { - if(only_if_set && umid_is_random) return(NULL); - return(umid); + if(only_if_set && umid_is_random) + return NULL; + return umid; } -int not_dead_yet(char *dir) +static int not_dead_yet(char *dir) { char file[strlen(uml_dir) + UMID_LEN + sizeof("/pid\0")]; char pid[sizeof("nnnnn\0")], *end; @@ -193,7 +197,8 @@ int not_dead_yet(char *dir) (p == CHOOSE_MODE(tracing_pid, os_getpid()))) dead = 1; } - if(!dead) return(1); + if(!dead) + return(1); return(actually_do_remove(dir)); } @@ -286,6 +291,7 @@ static int __init make_umid(int (*printer)(const char *fmt, ...)) if(errno == EEXIST){ if(not_dead_yet(tmp)){ (*printer)("umid '%s' is in use\n", umid); + umid_owned = 0; return(-1); } err = mkdir(tmp, 0777); @@ -296,7 +302,8 @@ static int __init make_umid(int (*printer)(const char *fmt, ...)) return(-1); } - return(0); + umid_owned = 1; + return 0; } __uml_setup("uml_dir=", set_uml_dir, @@ -309,7 +316,8 @@ static int __init make_umid_setup(void) /* one function with the ordering we need ... */ make_uml_dir(); make_umid(printf); - return create_pid_file(); + create_pid_file(); + return 0; } __uml_postsetup(make_umid_setup); From a8bfb94c58238666df0d6856861d18f0f52fc752 Mon Sep 17 00:00:00 2001 From: Paolo 'Blaisorblade' Giarrusso Date: Thu, 22 Sep 2005 21:44:14 -0700 Subject: [PATCH 075/352] [PATCH] strlcat: use for uml umid.c Simplify the code by using strlcat() instead of strncat() and manual appending. Signed-off-by: Paolo 'Blaisorblade' Giarrusso Cc: Jeff Dike Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/include/user.h | 4 +++- arch/um/kernel/umid.c | 11 ++++------- 2 files changed, 7 insertions(+), 8 deletions(-) diff --git a/arch/um/include/user.h b/arch/um/include/user.h index 57ee9e261228..0f865ef46918 100644 --- a/arch/um/include/user.h +++ b/arch/um/include/user.h @@ -14,7 +14,9 @@ extern void *um_kmalloc_atomic(int size); extern void kfree(void *ptr); extern int in_aton(char *str); extern int open_gdb_chan(void); -extern int strlcpy(char *, const char *, int); +/* These use size_t, however unsigned long is correct on both i386 and x86_64. */ +extern unsigned long strlcpy(char *, const char *, unsigned long); +extern unsigned long strlcat(char *, const char *, unsigned long); extern void *um_vmalloc(int size); extern void vfree(void *ptr); diff --git a/arch/um/kernel/umid.c b/arch/um/kernel/umid.c index 251d277fff2a..0b21d59ba0cd 100644 --- a/arch/um/kernel/umid.c +++ b/arch/um/kernel/umid.c @@ -237,16 +237,13 @@ static int __init make_uml_dir(void) strlcpy(dir, home, sizeof(dir)); uml_dir++; } + strlcat(dir, uml_dir, sizeof(dir)); len = strlen(dir); - strncat(dir, uml_dir, sizeof(dir) - len); - len = strlen(dir); - if((len > 0) && (len < sizeof(dir) - 1) && (dir[len - 1] != '/')){ - dir[len] = '/'; - dir[len + 1] = '\0'; - } + if (len > 0 && dir[len - 1] != '/') + strlcat(dir, "/", sizeof(dir)); uml_dir = malloc(strlen(dir) + 1); - if(uml_dir == NULL){ + if (uml_dir == NULL) { printf("make_uml_dir : malloc failed, errno = %d\n", errno); exit(1); } From 69e1e688f5698287b45fbff22a01de91b20804cd Mon Sep 17 00:00:00 2001 From: Paolo 'Blaisorblade' Giarrusso Date: Thu, 22 Sep 2005 21:44:15 -0700 Subject: [PATCH 076/352] [PATCH] uml: don't redundantly mark pte as newpage in pte_modify pte_modify marks a page as needing flush, which is redundant because the resulting PTE is still set with set_pte, which already handles that. Signed-off-by: Paolo 'Blaisorblade' Giarrusso Cc: Jeff Dike Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-um/pgtable.h | 1 - 1 file changed, 1 deletion(-) diff --git a/include/asm-um/pgtable.h b/include/asm-um/pgtable.h index ed06170e0edd..616d02b57ea9 100644 --- a/include/asm-um/pgtable.h +++ b/include/asm-um/pgtable.h @@ -346,7 +346,6 @@ static inline void set_pte(pte_t *pteptr, pte_t pteval) static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) { pte_set_val(pte, (pte_val(pte) & _PAGE_CHG_MASK), newprot); - if(pte_present(pte)) pte = pte_mknewpage(pte_mknewprot(pte)); return pte; } From 546fe1cbf91d4d62e3849517c31a2327c992e5c5 Mon Sep 17 00:00:00 2001 From: Paolo 'Blaisorblade' Giarrusso Date: Thu, 22 Sep 2005 21:44:16 -0700 Subject: [PATCH 077/352] [PATCH] uml: fix hang in TT mode on fault The current code doesn't handle well general protection faults on the host - it thinks that cr2 is always the address of a page fault. While actually, on general protection faults, that address is not accessible, so we'd better assume we couldn't satisfy the fault. Currently instead we think we've fixed it, so we go back, retry the instruction and fault again endlessly. This leads to the kernel hanging when doing copy_from_user(dest, -1, ...) in TT mode, since reading *(-1) causes a GFP, and we don't support kernel preemption. Thanks to Luo Xin for testing UML with LTP and reporting the failures he got. Cc: Luo Xin Signed-off-by: Paolo 'Blaisorblade' Giarrusso Cc: Jeff Dike Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/kernel/trap_kern.c | 11 ++++++++++- arch/um/kernel/tt/uaccess_user.c | 11 +++++++++-- 2 files changed, 19 insertions(+), 3 deletions(-) diff --git a/arch/um/kernel/trap_kern.c b/arch/um/kernel/trap_kern.c index 87cc6fd76ced..90690b9b1f30 100644 --- a/arch/um/kernel/trap_kern.c +++ b/arch/um/kernel/trap_kern.c @@ -18,6 +18,7 @@ #include "asm/a.out.h" #include "asm/current.h" #include "asm/irq.h" +#include "sysdep/sigcontext.h" #include "user_util.h" #include "kern_util.h" #include "kern.h" @@ -125,7 +126,15 @@ unsigned long segv(struct faultinfo fi, unsigned long ip, int is_user, void *sc) } else if(current->mm == NULL) panic("Segfault with no mm"); - err = handle_page_fault(address, ip, is_write, is_user, &si.si_code); + + if (SEGV_IS_FIXABLE(&fi)) + err = handle_page_fault(address, ip, is_write, is_user, &si.si_code); + else { + err = -EFAULT; + /* A thread accessed NULL, we get a fault, but CR2 is invalid. + * This code is used in __do_copy_from_user() of TT mode. */ + address = 0; + } catcher = current->thread.fault_catcher; if(!err) diff --git a/arch/um/kernel/tt/uaccess_user.c b/arch/um/kernel/tt/uaccess_user.c index f01475512ecb..8c220f054b61 100644 --- a/arch/um/kernel/tt/uaccess_user.c +++ b/arch/um/kernel/tt/uaccess_user.c @@ -22,8 +22,15 @@ int __do_copy_from_user(void *to, const void *from, int n, __do_copy, &faulted); TASK_REGS(get_current())->tt = save; - if(!faulted) return(0); - else return(n - (fault - (unsigned long) from)); + if(!faulted) + return 0; + else if (fault) + return n - (fault - (unsigned long) from); + else + /* In case of a general protection fault, we don't have the + * fault address, so NULL is used instead. Pretend we didn't + * copy anything. */ + return n; } static void __do_strncpy(void *dst, const void *src, int count) From dc36abf34e13aabbe06cdd060c434b3cdd80e7da Mon Sep 17 00:00:00 2001 From: Paolo 'Blaisorblade' Giarrusso Date: Thu, 22 Sep 2005 21:44:18 -0700 Subject: [PATCH 078/352] [PATCH] uml: fix condition in tlb flush Avoid setting w = 0 twice. Spotted this (trivial) thing which is needed for another patch. Signed-off-by: Paolo 'Blaisorblade' Giarrusso Cc: Jeff Dike Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/kernel/tlb.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/arch/um/kernel/tlb.c b/arch/um/kernel/tlb.c index 0a562c3c0fd8..f5b0636f9ad7 100644 --- a/arch/um/kernel/tlb.c +++ b/arch/um/kernel/tlb.c @@ -193,12 +193,12 @@ void fix_range_common(struct mm_struct *mm, unsigned long start_addr, r = pte_read(*npte); w = pte_write(*npte); x = pte_exec(*npte); - if(!pte_dirty(*npte)) - w = 0; - if(!pte_young(*npte)){ - r = 0; - w = 0; - } + if (!pte_young(*npte)) { + r = 0; + w = 0; + } else if (!pte_dirty(*npte)) { + w = 0; + } if(force || pte_newpage(*npte)){ if(pte_present(*npte)) ret = add_mmap(addr, From 12ebcd73e40e09f0dfddf89e465cc0541e0ff8b1 Mon Sep 17 00:00:00 2001 From: Paolo 'Blaisorblade' Giarrusso Date: Thu, 22 Sep 2005 21:44:19 -0700 Subject: [PATCH 079/352] [PATCH] uml: run mconsole "sysrq" in process context Things are breaking horribly with sysrq called in interrupt context. I want to try to fix it, but probably this is simpler. To tell the truth, sysrq is normally run in interrupt context, so there shouldn't be any problem. There's also a warning from the fault handler because it's run in atomic context (I have a patch for that, only I deferred it). This is why I'm doing this. Signed-off-by: Paolo 'Blaisorblade' Giarrusso Cc: Jeff Dike Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/drivers/mconsole_user.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/um/drivers/mconsole_user.c b/arch/um/drivers/mconsole_user.c index 310c1f823f26..04383f98f4d5 100644 --- a/arch/um/drivers/mconsole_user.c +++ b/arch/um/drivers/mconsole_user.c @@ -23,7 +23,7 @@ static struct mconsole_command commands[] = { { "reboot", mconsole_reboot, MCONSOLE_PROC }, { "config", mconsole_config, MCONSOLE_PROC }, { "remove", mconsole_remove, MCONSOLE_PROC }, - { "sysrq", mconsole_sysrq, MCONSOLE_INTR }, + { "sysrq", mconsole_sysrq, MCONSOLE_PROC }, { "help", mconsole_help, MCONSOLE_INTR }, { "cad", mconsole_cad, MCONSOLE_INTR }, { "stop", mconsole_stop, MCONSOLE_PROC }, From fea03cb40a15e3c6647c0927300202e062e6792a Mon Sep 17 00:00:00 2001 From: Paolo 'Blaisorblade' Giarrusso Date: Thu, 22 Sep 2005 21:44:20 -0700 Subject: [PATCH 080/352] [PATCH] uml: avoid fixing faults while atomic Following i386, we should maybe refuse trying to fault in pages when we're doing atomic operations, because to handle the fault we could need to take already taken spinlocks. Also, if we're doing an atomic operation (in the sense of in_atomic()) we're surely in kernel mode and we're surely going to handle adequately the failed fault, so it's safe to behave this way. Currently, on UML SMP is rarely used, and we don't support PREEMPT, so this is unlikely to create problems right now, but it might in the future. Signed-off-by: Paolo 'Blaisorblade' Giarrusso Cc: Jeff Dike Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/kernel/trap_kern.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/um/kernel/trap_kern.c b/arch/um/kernel/trap_kern.c index 90690b9b1f30..d297429ac360 100644 --- a/arch/um/kernel/trap_kern.c +++ b/arch/um/kernel/trap_kern.c @@ -40,6 +40,12 @@ int handle_page_fault(unsigned long address, unsigned long ip, int err = -EFAULT; *code_out = SEGV_MAPERR; + + /* If the fault was during atomic operation, don't take the fault, just + * fail. */ + if (in_atomic()) + goto out_nosemaphore; + down_read(&mm->mmap_sem); vma = find_vma(mm, address); if(!vma) @@ -90,6 +96,7 @@ survive: flush_tlb_page(vma, address); out: up_read(&mm->mmap_sem); +out_nosemaphore: return(err); /* From 46db4a42dd1190a311c2fb45106dfd0842c65a94 Mon Sep 17 00:00:00 2001 From: Paolo 'Blaisorblade' Giarrusso Date: Thu, 22 Sep 2005 21:44:20 -0700 Subject: [PATCH 081/352] [PATCH] uml: Fix GFP_ flags usage GFP_ATOMIC | GFP_KERNEL is meaningless and won't work. Actually it never worked, even in 2.4. Signed-off-by: Paolo 'Blaisorblade' Giarrusso Cc: Jeff Dike Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/kernel/process_kern.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/um/kernel/process_kern.c b/arch/um/kernel/process_kern.c index 39cf568ccfaf..ea65db679e9c 100644 --- a/arch/um/kernel/process_kern.c +++ b/arch/um/kernel/process_kern.c @@ -82,7 +82,8 @@ unsigned long alloc_stack(int order, int atomic) unsigned long page; int flags = GFP_KERNEL; - if(atomic) flags |= GFP_ATOMIC; + if (atomic) + flags = GFP_ATOMIC; page = __get_free_pages(flags, order); if(page == 0) return(0); From 79ae2cb856ed6a8c48f455d52d5ed5960c671e67 Mon Sep 17 00:00:00 2001 From: Paolo 'Blaisorblade' Giarrusso Date: Thu, 22 Sep 2005 21:44:21 -0700 Subject: [PATCH 082/352] [PATCH] uml: use GFP_ATOMIC for allocations under spinlocks. setup_initial_poll is only called with sigio_lock() held, so use appropriate allocation. Also, parse_chan() can also be called when holding a spinlock (see line_open() -> parse_chan_pair()). I have sporadic problems (spinlock taken twice, with spinlock debugging on UP) which could be caused by a sequence like "take spinlock, alloc and go to sleep, take again the spinlock in the other thread". Signed-off-by: Paolo 'Blaisorblade' Giarrusso Cc: Jeff Dike Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/drivers/chan_kern.c | 2 +- arch/um/kernel/sigio_user.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/um/drivers/chan_kern.c b/arch/um/drivers/chan_kern.c index 14a12d6b3df6..244e54a2153b 100644 --- a/arch/um/drivers/chan_kern.c +++ b/arch/um/drivers/chan_kern.c @@ -465,7 +465,7 @@ static struct chan *parse_chan(char *str, int pri, int device, data = (*ops->init)(str, device, opts); if(data == NULL) return(NULL); - chan = kmalloc(sizeof(*chan), GFP_KERNEL); + chan = kmalloc(sizeof(*chan), GFP_ATOMIC); if(chan == NULL) return(NULL); *chan = ((struct chan) { .list = LIST_HEAD_INIT(chan->list), .primary = 1, diff --git a/arch/um/kernel/sigio_user.c b/arch/um/kernel/sigio_user.c index e89218958f38..a52751108aa1 100644 --- a/arch/um/kernel/sigio_user.c +++ b/arch/um/kernel/sigio_user.c @@ -340,7 +340,7 @@ static int setup_initial_poll(int fd) { struct pollfd *p; - p = um_kmalloc(sizeof(struct pollfd)); + p = um_kmalloc_atomic(sizeof(struct pollfd)); if(p == NULL){ printk("setup_initial_poll : failed to allocate poll\n"); return(-1); From fac97ae0b1a206e2952baf1f9eb46305d673adc6 Mon Sep 17 00:00:00 2001 From: Paolo 'Blaisorblade' Giarrusso Date: Thu, 22 Sep 2005 21:44:22 -0700 Subject: [PATCH 083/352] [PATCH] uml: replace printk with "stack-friendly" printf - to report console failure User get *a lot* confused when consoles don't work but we don't report anything. And, as reported in the comment, using printk to report "your console doesn't work" isn't likely to go that far. Fix the problem on the base of this: stack consumption by host printf(). Use kernel sprintf() and os_write_file, using a wild guess that one page will be enough for the message, to preallocate the buffer with kmalloc(). Signed-off-by: Paolo 'Blaisorblade' Giarrusso Cc: Jeff Dike Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/drivers/chan_kern.c | 58 +++++++++++++++++++++++++++---------- 1 file changed, 42 insertions(+), 16 deletions(-) diff --git a/arch/um/drivers/chan_kern.c b/arch/um/drivers/chan_kern.c index 244e54a2153b..16e7dc89f61d 100644 --- a/arch/um/drivers/chan_kern.c +++ b/arch/um/drivers/chan_kern.c @@ -19,18 +19,44 @@ #include "line.h" #include "os.h" -#ifdef CONFIG_NOCONFIG_CHAN +/* XXX: could well be moved to somewhere else, if needed. */ +static int my_printf(const char * fmt, ...) + __attribute__ ((format (printf, 1, 2))); -/* The printk's here are wrong because we are complaining that there is no - * output device, but printk is printing to that output device. The user will - * never see the error. printf would be better, except it can't run on a - * kernel stack because it will overflow it. - * Use printk for now since that will avoid crashing. - */ +static int my_printf(const char * fmt, ...) +{ + /* Yes, can be called on atomic context.*/ + char *buf = kmalloc(4096, GFP_ATOMIC); + va_list args; + int r; + + if (!buf) { + /* We print directly fmt. + * Yes, yes, yes, feel free to complain. */ + r = strlen(fmt); + } else { + va_start(args, fmt); + r = vsprintf(buf, fmt, args); + va_end(args); + fmt = buf; + } + + if (r) + r = os_write_file(1, fmt, r); + return r; + +} + +#ifdef CONFIG_NOCONFIG_CHAN +/* Despite its name, there's no added trailing newline. */ +static int my_puts(const char * buf) +{ + return os_write_file(1, buf, strlen(buf)); +} static void *not_configged_init(char *str, int device, struct chan_opts *opts) { - printk(KERN_ERR "Using a channel type which is configured out of " + my_puts("Using a channel type which is configured out of " "UML\n"); return(NULL); } @@ -38,27 +64,27 @@ static void *not_configged_init(char *str, int device, struct chan_opts *opts) static int not_configged_open(int input, int output, int primary, void *data, char **dev_out) { - printk(KERN_ERR "Using a channel type which is configured out of " + my_puts("Using a channel type which is configured out of " "UML\n"); return(-ENODEV); } static void not_configged_close(int fd, void *data) { - printk(KERN_ERR "Using a channel type which is configured out of " + my_puts("Using a channel type which is configured out of " "UML\n"); } static int not_configged_read(int fd, char *c_out, void *data) { - printk(KERN_ERR "Using a channel type which is configured out of " + my_puts("Using a channel type which is configured out of " "UML\n"); return(-EIO); } static int not_configged_write(int fd, const char *buf, int len, void *data) { - printk(KERN_ERR "Using a channel type which is configured out of " + my_puts("Using a channel type which is configured out of " "UML\n"); return(-EIO); } @@ -66,7 +92,7 @@ static int not_configged_write(int fd, const char *buf, int len, void *data) static int not_configged_console_write(int fd, const char *buf, int len, void *data) { - printk(KERN_ERR "Using a channel type which is configured out of " + my_puts("Using a channel type which is configured out of " "UML\n"); return(-EIO); } @@ -74,14 +100,14 @@ static int not_configged_console_write(int fd, const char *buf, int len, static int not_configged_window_size(int fd, void *data, unsigned short *rows, unsigned short *cols) { - printk(KERN_ERR "Using a channel type which is configured out of " + my_puts("Using a channel type which is configured out of " "UML\n"); return(-ENODEV); } static void not_configged_free(void *data) { - printf(KERN_ERR "Using a channel type which is configured out of " + my_puts("Using a channel type which is configured out of " "UML\n"); } @@ -457,7 +483,7 @@ static struct chan *parse_chan(char *str, int pri, int device, } } if(ops == NULL){ - printk(KERN_ERR "parse_chan couldn't parse \"%s\"\n", + my_printf("parse_chan couldn't parse \"%s\"\n", str); return(NULL); } From 288a60cf4d7cc35f84f46cd8ffd0b34f9d8e7346 Mon Sep 17 00:00:00 2001 From: Chris Zankel Date: Thu, 22 Sep 2005 21:44:23 -0700 Subject: [PATCH 084/352] [PATCH] xtensa: remove io_remap_page_range and minor clean-ups Remove io_remap_page_range() from all of Linux 2.6.x (as requested and suggested by Randy Dunlap) and minor clean-ups. Signed-off-by: Chris Zankel Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/xtensa/kernel/pci.c | 4 +-- arch/xtensa/kernel/platform.c | 2 +- arch/xtensa/kernel/process.c | 2 +- arch/xtensa/kernel/setup.c | 2 +- arch/xtensa/kernel/signal.c | 2 +- arch/xtensa/kernel/time.c | 2 +- arch/xtensa/mm/init.c | 2 +- include/asm-xtensa/atomic.h | 2 +- include/asm-xtensa/bitops.h | 2 +- include/asm-xtensa/hardirq.h | 1 + include/asm-xtensa/semaphore.h | 49 ++++++++-------------------------- include/asm-xtensa/system.h | 16 ----------- 12 files changed, 22 insertions(+), 64 deletions(-) diff --git a/arch/xtensa/kernel/pci.c b/arch/xtensa/kernel/pci.c index 09887c96e9a1..de19501aa809 100644 --- a/arch/xtensa/kernel/pci.c +++ b/arch/xtensa/kernel/pci.c @@ -402,8 +402,8 @@ int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, __pci_mmap_set_flags(dev, vma, mmap_state); __pci_mmap_set_pgprot(dev, vma, mmap_state, write_combine); - ret = io_remap_page_range(vma, vma->vm_start, vma->vm_pgoff<vm_end - vma->vm_start, vma->vm_page_prot); + ret = io_remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff, + vma->vm_end - vma->vm_start,vma->vm_page_prot); return ret; } diff --git a/arch/xtensa/kernel/platform.c b/arch/xtensa/kernel/platform.c index cf1362784443..03674daabc66 100644 --- a/arch/xtensa/kernel/platform.c +++ b/arch/xtensa/kernel/platform.c @@ -39,7 +39,7 @@ _F(int, pcibios_fixup, (void), { return 0; }); _F(int, get_rtc_time, (time_t* t), { return 0; }); _F(int, set_rtc_time, (time_t t), { return 0; }); -#if CONFIG_XTENSA_CALIBRATE_CCOUNT +#ifdef CONFIG_XTENSA_CALIBRATE_CCOUNT _F(void, calibrate_ccount, (void), { printk ("ERROR: Cannot calibrate cpu frequency! Assuming 100MHz.\n"); diff --git a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c index c83bb0d41787..08ef6d82ee51 100644 --- a/arch/xtensa/kernel/process.c +++ b/arch/xtensa/kernel/process.c @@ -457,7 +457,7 @@ int dump_task_fpu(struct pt_regs *regs, struct task_struct *task, elf_fpregset_t *r) { /* see asm/coprocessor.h for this magic number 16 */ -#if TOTAL_CPEXTRA_SIZE > 16 +#if XTENSA_CP_EXTRA_SIZE > 16 do_save_fpregs (r, regs, task); /* For now, bit 16 means some extra state may be present: */ diff --git a/arch/xtensa/kernel/setup.c b/arch/xtensa/kernel/setup.c index 1f5bf5d624e4..513ed8d67766 100644 --- a/arch/xtensa/kernel/setup.c +++ b/arch/xtensa/kernel/setup.c @@ -304,7 +304,7 @@ void __init setup_arch(char **cmdline_p) # endif #endif -#if CONFIG_PCI +#ifdef CONFIG_PCI platform_pcibios_init(); #endif } diff --git a/arch/xtensa/kernel/signal.c b/arch/xtensa/kernel/signal.c index dc42cede9394..e252b61e45a5 100644 --- a/arch/xtensa/kernel/signal.c +++ b/arch/xtensa/kernel/signal.c @@ -182,7 +182,7 @@ restore_cpextra (struct _cpstate *buf) struct task_struct *tsk = current; release_all_cp(tsk); - return __copy_from_user(tsk->thread.cpextra, buf, TOTAL_CPEXTRA_SIZE); + return __copy_from_user(tsk->thread.cpextra, buf, XTENSA_CP_EXTRA_SIZE); #endif return 0; } diff --git a/arch/xtensa/kernel/time.c b/arch/xtensa/kernel/time.c index 1ac7d5ce7456..8e423d1335ce 100644 --- a/arch/xtensa/kernel/time.c +++ b/arch/xtensa/kernel/time.c @@ -68,7 +68,7 @@ void __init time_init(void) * speed for the CALIBRATE. */ -#if CONFIG_XTENSA_CALIBRATE_CCOUNT +#ifdef CONFIG_XTENSA_CALIBRATE_CCOUNT printk("Calibrating CPU frequency "); platform_calibrate_ccount(); printk("%d.%02d MHz\n", (int)ccount_per_jiffy/(1000000/HZ), diff --git a/arch/xtensa/mm/init.c b/arch/xtensa/mm/init.c index 56aace84aaeb..5a91d6c9e66d 100644 --- a/arch/xtensa/mm/init.c +++ b/arch/xtensa/mm/init.c @@ -239,7 +239,7 @@ void __init mem_init(void) high_memory = (void *) __va(max_mapnr << PAGE_SHIFT); highmemsize = 0; -#if CONFIG_HIGHMEM +#ifdef CONFIG_HIGHMEM #error HIGHGMEM not implemented in init.c #endif diff --git a/include/asm-xtensa/atomic.h b/include/asm-xtensa/atomic.h index 24f86f0e43cf..12b5732dc6e5 100644 --- a/include/asm-xtensa/atomic.h +++ b/include/asm-xtensa/atomic.h @@ -22,7 +22,7 @@ typedef struct { volatile int counter; } atomic_t; #include #include -#define ATOMIC_INIT(i) ( (atomic_t) { (i) } ) +#define ATOMIC_INIT(i) { (i) } /* * This Xtensa implementation assumes that the right mechanism diff --git a/include/asm-xtensa/bitops.h b/include/asm-xtensa/bitops.h index d395ef226c32..e76ee889e21d 100644 --- a/include/asm-xtensa/bitops.h +++ b/include/asm-xtensa/bitops.h @@ -174,7 +174,7 @@ static __inline__ int test_bit(int nr, const volatile void *addr) return 1UL & (((const volatile unsigned int *)addr)[nr>>5] >> (nr&31)); } -#if XCHAL_HAVE_NSAU +#if XCHAL_HAVE_NSA static __inline__ int __cntlz (unsigned long x) { diff --git a/include/asm-xtensa/hardirq.h b/include/asm-xtensa/hardirq.h index e07c76c36b95..aa9c1adf68d7 100644 --- a/include/asm-xtensa/hardirq.h +++ b/include/asm-xtensa/hardirq.h @@ -23,6 +23,7 @@ typedef struct { unsigned int __nmi_count; /* arch dependent */ } ____cacheline_aligned irq_cpustat_t; +void ack_bad_irq(unsigned int irq); #include /* Standard mappings for irq_cpustat_t above */ #endif /* _XTENSA_HARDIRQ_H */ diff --git a/include/asm-xtensa/semaphore.h b/include/asm-xtensa/semaphore.h index db740b8bc6f0..09e89ab3eb61 100644 --- a/include/asm-xtensa/semaphore.h +++ b/include/asm-xtensa/semaphore.h @@ -20,28 +20,19 @@ struct semaphore { atomic_t count; int sleepers; wait_queue_head_t wait; -#if WAITQUEUE_DEBUG - long __magic; -#endif }; -#if WAITQUEUE_DEBUG -# define __SEM_DEBUG_INIT(name) \ - , (int)&(name).__magic -#else -# define __SEM_DEBUG_INIT(name) -#endif +#define __SEMAPHORE_INITIALIZER(name,n) \ +{ \ + .count = ATOMIC_INIT(n), \ + .sleepers = 0, \ + .wait = __WAIT_QUEUE_HEAD_INITIALIZER((name).wait) \ +} -#define __SEMAPHORE_INITIALIZER(name,count) \ - { ATOMIC_INIT(count), \ - 0, \ - __WAIT_QUEUE_HEAD_INITIALIZER((name).wait) \ - __SEM_DEBUG_INIT(name) } - -#define __MUTEX_INITIALIZER(name) \ +#define __MUTEX_INITIALIZER(name) \ __SEMAPHORE_INITIALIZER(name, 1) -#define __DECLARE_SEMAPHORE_GENERIC(name,count) \ +#define __DECLARE_SEMAPHORE_GENERIC(name,count) \ struct semaphore name = __SEMAPHORE_INITIALIZER(name,count) #define DECLARE_MUTEX(name) __DECLARE_SEMAPHORE_GENERIC(name,1) @@ -49,17 +40,8 @@ struct semaphore { static inline void sema_init (struct semaphore *sem, int val) { -/* - * *sem = (struct semaphore)__SEMAPHORE_INITIALIZER((*sem),val); - * - * i'd rather use the more flexible initialization above, but sadly - * GCC 2.7.2.3 emits a bogus warning. EGCS doesnt. Oh well. - */ atomic_set(&sem->count, val); init_waitqueue_head(&sem->wait); -#if WAITQUEUE_DEBUG - sem->__magic = (int)&sem->__magic; -#endif } static inline void init_MUTEX (struct semaphore *sem) @@ -81,9 +63,7 @@ extern spinlock_t semaphore_wake_lock; static inline void down(struct semaphore * sem) { -#if WAITQUEUE_DEBUG - CHECK_MAGIC(sem->__magic); -#endif + might_sleep(); if (atomic_sub_return(1, &sem->count) < 0) __down(sem); @@ -92,9 +72,8 @@ static inline void down(struct semaphore * sem) static inline int down_interruptible(struct semaphore * sem) { int ret = 0; -#if WAITQUEUE_DEBUG - CHECK_MAGIC(sem->__magic); -#endif + + might_sleep(); if (atomic_sub_return(1, &sem->count) < 0) ret = __down_interruptible(sem); @@ -104,9 +83,6 @@ static inline int down_interruptible(struct semaphore * sem) static inline int down_trylock(struct semaphore * sem) { int ret = 0; -#if WAITQUEUE_DEBUG - CHECK_MAGIC(sem->__magic); -#endif if (atomic_sub_return(1, &sem->count) < 0) ret = __down_trylock(sem); @@ -119,9 +95,6 @@ static inline int down_trylock(struct semaphore * sem) */ static inline void up(struct semaphore * sem) { -#if WAITQUEUE_DEBUG - CHECK_MAGIC(sem->__magic); -#endif if (atomic_add_return(1, &sem->count) <= 0) __up(sem); } diff --git a/include/asm-xtensa/system.h b/include/asm-xtensa/system.h index f09393232e5e..9284867f1cb9 100644 --- a/include/asm-xtensa/system.h +++ b/include/asm-xtensa/system.h @@ -189,20 +189,6 @@ static inline unsigned long xchg_u32(volatile int * m, unsigned long val) #define tas(ptr) (xchg((ptr),1)) -#if ( __XCC__ == 1 ) - -/* xt-xcc processes __inline__ differently than xt-gcc and decides to - * insert an out-of-line copy of function __xchg. This presents the - * unresolved symbol at link time of __xchg_called_with_bad_pointer, - * even though such a function would never be called at run-time. - * xt-gcc always inlines __xchg, and optimizes away the undefined - * bad_pointer function. - */ - -#define xchg(ptr,x) xchg_u32(ptr,x) - -#else /* assume xt-gcc */ - #define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr)))) /* @@ -224,8 +210,6 @@ __xchg(unsigned long x, volatile void * ptr, int size) return x; } -#endif - extern void set_except_vector(int n, void *addr); static inline void spill_registers(void) From f65d9bea8692d7343e4636763f291408f025834f Mon Sep 17 00:00:00 2001 From: Clemens Buchacher Date: Thu, 22 Sep 2005 21:44:24 -0700 Subject: [PATCH 085/352] [PATCH] oss: don't concatenate __FUNCTION__ with strings It's deprecated. Use "%s", __FUNCTION__ instead. Signed-off-by: Clemens Buchacher Signed-off-by: Maximilian Attems Signed-off-by: Domen Puncer Signed-off-by: Alexey Dobriyan Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- sound/oss/au1000.c | 2 +- sound/oss/ite8172.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/sound/oss/au1000.c b/sound/oss/au1000.c index 4491733c9e4e..2c2ae2ee01ac 100644 --- a/sound/oss/au1000.c +++ b/sound/oss/au1000.c @@ -1295,7 +1295,7 @@ static int au1000_mmap(struct file *file, struct vm_area_struct *vma) unsigned long size; int ret = 0; - dbg(__FUNCTION__); + dbg("%s", __FUNCTION__); lock_kernel(); down(&s->sem); diff --git a/sound/oss/ite8172.c b/sound/oss/ite8172.c index 58f879fda975..26e5944b6ba8 100644 --- a/sound/oss/ite8172.c +++ b/sound/oss/ite8172.c @@ -1859,7 +1859,7 @@ static int it8172_release(struct inode *inode, struct file *file) struct it8172_state *s = (struct it8172_state *)file->private_data; #ifdef IT8172_VERBOSE_DEBUG - dbg(__FUNCTION__); + dbg("%s", __FUNCTION__); #endif lock_kernel(); if (file->f_mode & FMODE_WRITE) From 8bdac5d1ed892da54b6b2069e50a47b3aa39460f Mon Sep 17 00:00:00 2001 From: Glauber de Oliveira Costa Date: Thu, 22 Sep 2005 21:44:26 -0700 Subject: [PATCH 086/352] [PATCH] ext3: EXT3_DEBUG build fixes Fix some warnings and a build error when EXT3_DEBUG is enabled. Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/ext3/balloc.c | 6 +++--- fs/ext3/resize.c | 6 +++--- 2 files changed, 6 insertions(+), 6 deletions(-) diff --git a/fs/ext3/balloc.c b/fs/ext3/balloc.c index e463dca008e4..0213db4911a2 100644 --- a/fs/ext3/balloc.c +++ b/fs/ext3/balloc.c @@ -1410,7 +1410,7 @@ unsigned long ext3_count_free_blocks(struct super_block *sb) unsigned long desc_count; struct ext3_group_desc *gdp; int i; - unsigned long ngroups; + unsigned long ngroups = EXT3_SB(sb)->s_groups_count; #ifdef EXT3FS_DEBUG struct ext3_super_block *es; unsigned long bitmap_count, x; @@ -1421,7 +1421,8 @@ unsigned long ext3_count_free_blocks(struct super_block *sb) desc_count = 0; bitmap_count = 0; gdp = NULL; - for (i = 0; i < EXT3_SB(sb)->s_groups_count; i++) { + + for (i = 0; i < ngroups; i++) { gdp = ext3_get_group_desc(sb, i, NULL); if (!gdp) continue; @@ -1443,7 +1444,6 @@ unsigned long ext3_count_free_blocks(struct super_block *sb) return bitmap_count; #else desc_count = 0; - ngroups = EXT3_SB(sb)->s_groups_count; smp_rmb(); for (i = 0; i < ngroups; i++) { gdp = ext3_get_group_desc(sb, i, NULL); diff --git a/fs/ext3/resize.c b/fs/ext3/resize.c index 2c9f81278d5d..57f79106267d 100644 --- a/fs/ext3/resize.c +++ b/fs/ext3/resize.c @@ -242,7 +242,7 @@ static int setup_new_group_blocks(struct super_block *sb, i < sbi->s_itb_per_group; i++, bit++, block++) { struct buffer_head *it; - ext3_debug("clear inode block %#04x (+%ld)\n", block, bit); + ext3_debug("clear inode block %#04lx (+%d)\n", block, bit); if (IS_ERR(it = bclean(handle, sb, block))) { err = PTR_ERR(it); goto exit_bh; @@ -643,8 +643,8 @@ static void update_backups(struct super_block *sb, break; bh = sb_getblk(sb, group * bpg + blk_off); - ext3_debug(sb, __FUNCTION__, "update metadata backup %#04lx\n", - bh->b_blocknr); + ext3_debug("update metadata backup %#04lx\n", + (unsigned long)bh->b_blocknr); if ((err = ext3_journal_get_write_access(handle, bh))) break; lock_buffer(bh); From f7b3a4359b25311fb5894c8809478a2df6bed480 Mon Sep 17 00:00:00 2001 From: Rob Landley Date: Thu, 22 Sep 2005 21:44:27 -0700 Subject: [PATCH 087/352] [PATCH] Fix bd_claim() error code. Problem: In some circumstances, bd_claim() is returning the wrong error code. If we try to swapon an unused block device that isn't swap formatted, we get -EINVAL. But if that same block device is already mounted, we instead get -EBUSY, even though it still isn't a valid swap device. This issue came up on the busybox list trying to get the error message from "swapon -a" right. If a swap device is already enabled, we get -EBUSY, and we shouldn't report this as an error. But we can't distinguish the two -EBUSY conditions, which are very different errors. In the code, bd_claim() returns either 0 or -EBUSY, but in this case busy means "somebody other than sys_swapon has already claimed this", and _that_ means this block device can't be a valid swap device. So return -EINVAL there. Signed-off-by: Rob Landley Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/swapfile.c | 1 + 1 file changed, 1 insertion(+) diff --git a/mm/swapfile.c b/mm/swapfile.c index 0184f510aace..1dcaeda039f4 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -1381,6 +1381,7 @@ asmlinkage long sys_swapon(const char __user * specialfile, int swap_flags) error = bd_claim(bdev, sys_swapon); if (error < 0) { bdev = NULL; + error = -EINVAL; goto bad_swap; } p->old_block_size = block_size(bdev); From 10d2c46f9408d404bffef89d5052953a3b1d9288 Mon Sep 17 00:00:00 2001 From: Nick Wilson Date: Thu, 22 Sep 2005 21:44:28 -0700 Subject: [PATCH 088/352] [PATCH] NFS: fix client oops when debugging is on nfs_readpage_release() causes an oops while accessing a file with NFS debugging turned on (echo 32767 > /proc/sys/sunrpc/nfs_debug) and a kernel built with CONFIG_DEBUG_SLAB. This patch moves the debugging statement above nfs_release_request() to avoid accessing freed memory. Signed-off-by: Nick Wilson Cc: Trond Myklebust Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/nfs/read.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/fs/nfs/read.c b/fs/nfs/read.c index 6ceb1d471f20..9758ebd49905 100644 --- a/fs/nfs/read.c +++ b/fs/nfs/read.c @@ -184,14 +184,13 @@ static void nfs_readpage_release(struct nfs_page *req) { unlock_page(req->wb_page); - nfs_clear_request(req); - nfs_release_request(req); - dprintk("NFS: read done (%s/%Ld %d@%Ld)\n", req->wb_context->dentry->d_inode->i_sb->s_id, (long long)NFS_FILEID(req->wb_context->dentry->d_inode), req->wb_bytes, (long long)req_offset(req)); + nfs_clear_request(req); + nfs_release_request(req); } /* From e484585ec3ee66cd07a627d3a9e2364640a3807f Mon Sep 17 00:00:00 2001 From: Paolo 'Blaisorblade' Giarrusso Date: Thu, 22 Sep 2005 21:44:29 -0700 Subject: [PATCH 089/352] [PATCH] Add dm-snapshot tutorial in Documentation I've recently discovered the real functionality of device-mapper snapshots, and since they are not well known, I've decided to write some docs for them. Signed-off-by: Paolo 'Blaisorblade' Giarrusso Signed-off-by: Alasdair G Kergon Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/device-mapper/snapshot.txt | 73 ++++++++++++++++++++++++ 1 file changed, 73 insertions(+) create mode 100644 Documentation/device-mapper/snapshot.txt diff --git a/Documentation/device-mapper/snapshot.txt b/Documentation/device-mapper/snapshot.txt new file mode 100644 index 000000000000..dca274ff4005 --- /dev/null +++ b/Documentation/device-mapper/snapshot.txt @@ -0,0 +1,73 @@ +Device-mapper snapshot support +============================== + +Device-mapper allows you, without massive data copying: + +*) To create snapshots of any block device i.e. mountable, saved states of +the block device which are also writable without interfering with the +original content; +*) To create device "forks", i.e. multiple different versions of the +same data stream. + + +In both cases, dm copies only the chunks of data that get changed and +uses a separate copy-on-write (COW) block device for storage. + + +There are two dm targets available: snapshot and snapshot-origin. + +*) snapshot-origin + +which will normally have one or more snapshots based on it. +You must create the snapshot-origin device before you can create snapshots. +Reads will be mapped directly to the backing device. For each write, the +original data will be saved in the of each snapshot to keep +its visible content unchanged, at least until the fills up. + + +*) snapshot + +A snapshot is created of the block device. Changed chunks of + sectors will be stored on the . Writes will +only go to the . Reads will come from the or +from for unchanged data. will often be +smaller than the origin and if it fills up the snapshot will become +useless and be disabled, returning errors. So it is important to monitor +the amount of free space and expand the before it fills up. + + is P (Persistent) or N (Not persistent - will not survive +after reboot). + + +How this is used by LVM2 +======================== +When you create the first LVM2 snapshot of a volume, four dm devices are used: + +1) a device containing the original mapping table of the source volume; +2) a device used as the ; +3) a "snapshot" device, combining #1 and #2, which is the visible snapshot + volume; +4) the "original" volume (which uses the device number used by the original + source volume), whose table is replaced by a "snapshot-origin" mapping + from device #1. + +A fixed naming scheme is used, so with the following commands: + +lvcreate -L 1G -n base volumeGroup +lvcreate -L 100M --snapshot -n snap volumeGroup/base + +we'll have this situation (with volumes in above order): + +# dmsetup table|grep volumeGroup + +volumeGroup-base-real: 0 2097152 linear 8:19 384 +volumeGroup-snap-cow: 0 204800 linear 8:19 2097536 +volumeGroup-snap: 0 2097152 snapshot 254:11 254:12 P 16 +volumeGroup-base: 0 2097152 snapshot-origin 254:11 + +# ls -lL /dev/mapper/volumeGroup-* +brw------- 1 root root 254, 11 29 ago 18:15 /dev/mapper/volumeGroup-base-real +brw------- 1 root root 254, 12 29 ago 18:15 /dev/mapper/volumeGroup-snap-cow +brw------- 1 root root 254, 13 29 ago 18:15 /dev/mapper/volumeGroup-snap +brw------- 1 root root 254, 10 29 ago 18:14 /dev/mapper/volumeGroup-base + From 83ca28befc43e93849e79c564cda10e39d983e75 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Thu, 22 Sep 2005 23:32:56 -0700 Subject: [PATCH 090/352] [TCP]: Adjust Reno SACK estimate in tcp_fragment Since the introduction of TSO pcount a year ago, it has been possible for tcp_fragment() to cause packets_out to decrease. Prior to that, tcp_retrans_try_collapse() was the only way for that to happen on the retransmission path. When this happens with Reno, it is possible for sasked_out to become invalid because it is only an estimate and not tied to any particular packet on the retransmission queue. Therefore we need to adjust sacked_out as well as left_out in the Reno case. The following patch does exactly that. This bug is pretty difficult to trigger in practice though since you need a SACKless peer with a retransmission that occurs just as the cached MTU value expires. Signed-off-by: Herbert Xu Signed-off-by: David S. Miller --- net/ipv4/tcp_output.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 5dd6dd7d091e..d6e3d269e906 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -509,7 +509,16 @@ int tcp_fragment(struct sock *sk, struct sk_buff *skb, u32 len, unsigned int mss tp->lost_out -= diff; tp->left_out -= diff; } + if (diff > 0) { + /* Adjust Reno SACK estimate. */ + if (!tp->rx_opt.sack_ok) { + tp->sacked_out -= diff; + if ((int)tp->sacked_out < 0) + tp->sacked_out = 0; + tcp_sync_left_out(tp); + } + tp->fackets_out -= diff; if ((int)tp->fackets_out < 0) tp->fackets_out = 0; From 2a7bc3c94cbca32d3d6e03e7d5a71662f591d28a Mon Sep 17 00:00:00 2001 From: Vlad Drukker Date: Thu, 22 Sep 2005 23:35:34 -0700 Subject: [PATCH 091/352] [BRIDGE]: TSO fix in br_dev_queue_push_xmit Signed-off-by: Vlad Drukker Acked-by: Stephen Hemminger Signed-off-by: David S. Miller --- net/bridge/br_forward.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/bridge/br_forward.c b/net/bridge/br_forward.c index 069253f830c1..2d24fb400e0c 100644 --- a/net/bridge/br_forward.c +++ b/net/bridge/br_forward.c @@ -31,7 +31,8 @@ static inline int should_deliver(const struct net_bridge_port *p, int br_dev_queue_push_xmit(struct sk_buff *skb) { - if (skb->len > skb->dev->mtu) + /* drop mtu oversized packets except tso */ + if (skb->len > skb->dev->mtu && !skb_shinfo(skb)->tso_size) kfree_skb(skb); else { #ifdef CONFIG_BRIDGE_NETFILTER From 0ae5d253adcc467b1c52b512bbca9419eb438409 Mon Sep 17 00:00:00 2001 From: Harald Welte Date: Thu, 22 Sep 2005 23:44:58 -0700 Subject: [PATCH 092/352] [NETFILTER] fix DEBUG statement in PPTP helper As noted by Alexey Dobriyan, the DEBUGP statement prints the wrong callID. Signed-off-by: Harald Welte Signed-off-by: David S. Miller --- net/ipv4/netfilter/ip_conntrack_helper_pptp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ipv4/netfilter/ip_conntrack_helper_pptp.c b/net/ipv4/netfilter/ip_conntrack_helper_pptp.c index 79db5b70d5f6..117587978700 100644 --- a/net/ipv4/netfilter/ip_conntrack_helper_pptp.c +++ b/net/ipv4/netfilter/ip_conntrack_helper_pptp.c @@ -485,7 +485,7 @@ pptp_inbound_pkt(struct sk_buff **pskb, if (info->pns_call_id != ntohs(*pcid)) { DEBUGP("%s for unknown CallID %u\n", - pptp_msg_name[msg], ntohs(*cid)); + pptp_msg_name[msg], ntohs(*pcid)); break; } From 67497205b12e3cb408259cc09b50c3a9d12cd935 Mon Sep 17 00:00:00 2001 From: Alexey Dobriyan Date: Thu, 22 Sep 2005 23:45:24 -0700 Subject: [PATCH 093/352] [NETFILTER] Fix sparse endian warnings in pptp helper Signed-off-by: Alexey Dobriyan Signed-off-by: Harald Welte Signed-off-by: David S. Miller --- .../linux/netfilter_ipv4/ip_conntrack_pptp.h | 118 +++++++++--------- .../linux/netfilter_ipv4/ip_conntrack_tuple.h | 6 +- net/ipv4/netfilter/ip_conntrack_helper_pptp.c | 14 ++- 3 files changed, 70 insertions(+), 68 deletions(-) diff --git a/include/linux/netfilter_ipv4/ip_conntrack_pptp.h b/include/linux/netfilter_ipv4/ip_conntrack_pptp.h index 389e3851d52f..50a761db5a04 100644 --- a/include/linux/netfilter_ipv4/ip_conntrack_pptp.h +++ b/include/linux/netfilter_ipv4/ip_conntrack_pptp.h @@ -60,8 +60,8 @@ struct ip_ct_pptp_expect { struct pptp_pkt_hdr { __u16 packetLength; - __u16 packetType; - __u32 magicCookie; + __be16 packetType; + __be32 magicCookie; }; /* PptpControlMessageType values */ @@ -93,7 +93,7 @@ struct pptp_pkt_hdr { #define PPTP_REMOVE_DEVICE_ERROR 6 struct PptpControlHeader { - __u16 messageType; + __be16 messageType; __u16 reserved; }; @@ -106,13 +106,13 @@ struct PptpControlHeader { #define PPTP_BEARER_CAP_DIGITAL 0x2 struct PptpStartSessionRequest { - __u16 protocolVersion; + __be16 protocolVersion; __u8 reserved1; __u8 reserved2; - __u32 framingCapability; - __u32 bearerCapability; - __u16 maxChannels; - __u16 firmwareRevision; + __be32 framingCapability; + __be32 bearerCapability; + __be16 maxChannels; + __be16 firmwareRevision; __u8 hostName[64]; __u8 vendorString[64]; }; @@ -125,13 +125,13 @@ struct PptpStartSessionRequest { #define PPTP_START_UNKNOWN_PROTOCOL 5 struct PptpStartSessionReply { - __u16 protocolVersion; + __be16 protocolVersion; __u8 resultCode; __u8 generalErrorCode; - __u32 framingCapability; - __u32 bearerCapability; - __u16 maxChannels; - __u16 firmwareRevision; + __be32 framingCapability; + __be32 bearerCapability; + __be16 maxChannels; + __be16 firmwareRevision; __u8 hostName[64]; __u8 vendorString[64]; }; @@ -155,7 +155,7 @@ struct PptpStopSessionReply { }; struct PptpEchoRequest { - __u32 identNumber; + __be32 identNumber; }; /* PptpEchoReplyResultCode */ @@ -163,7 +163,7 @@ struct PptpEchoRequest { #define PPTP_ECHO_GENERAL_ERROR 2 struct PptpEchoReply { - __u32 identNumber; + __be32 identNumber; __u8 resultCode; __u8 generalErrorCode; __u16 reserved; @@ -180,16 +180,16 @@ struct PptpEchoReply { #define PPTP_DONT_CARE_BEARER_TYPE 3 struct PptpOutCallRequest { - __u16 callID; - __u16 callSerialNumber; - __u32 minBPS; - __u32 maxBPS; - __u32 bearerType; - __u32 framingType; - __u16 packetWindow; - __u16 packetProcDelay; + __be16 callID; + __be16 callSerialNumber; + __be32 minBPS; + __be32 maxBPS; + __be32 bearerType; + __be32 framingType; + __be16 packetWindow; + __be16 packetProcDelay; __u16 reserved1; - __u16 phoneNumberLength; + __be16 phoneNumberLength; __u16 reserved2; __u8 phoneNumber[64]; __u8 subAddress[64]; @@ -205,24 +205,24 @@ struct PptpOutCallRequest { #define PPTP_OUTCALL_DONT_ACCEPT 7 struct PptpOutCallReply { - __u16 callID; - __u16 peersCallID; + __be16 callID; + __be16 peersCallID; __u8 resultCode; __u8 generalErrorCode; - __u16 causeCode; - __u32 connectSpeed; - __u16 packetWindow; - __u16 packetProcDelay; - __u32 physChannelID; + __be16 causeCode; + __be32 connectSpeed; + __be16 packetWindow; + __be16 packetProcDelay; + __be32 physChannelID; }; struct PptpInCallRequest { - __u16 callID; - __u16 callSerialNumber; - __u32 callBearerType; - __u32 physChannelID; - __u16 dialedNumberLength; - __u16 dialingNumberLength; + __be16 callID; + __be16 callSerialNumber; + __be32 callBearerType; + __be32 physChannelID; + __be16 dialedNumberLength; + __be16 dialingNumberLength; __u8 dialedNumber[64]; __u8 dialingNumber[64]; __u8 subAddress[64]; @@ -234,54 +234,54 @@ struct PptpInCallRequest { #define PPTP_INCALL_DONT_ACCEPT 3 struct PptpInCallReply { - __u16 callID; - __u16 peersCallID; + __be16 callID; + __be16 peersCallID; __u8 resultCode; __u8 generalErrorCode; - __u16 packetWindow; - __u16 packetProcDelay; + __be16 packetWindow; + __be16 packetProcDelay; __u16 reserved; }; struct PptpInCallConnected { - __u16 peersCallID; + __be16 peersCallID; __u16 reserved; - __u32 connectSpeed; - __u16 packetWindow; - __u16 packetProcDelay; - __u32 callFramingType; + __be32 connectSpeed; + __be16 packetWindow; + __be16 packetProcDelay; + __be32 callFramingType; }; struct PptpClearCallRequest { - __u16 callID; + __be16 callID; __u16 reserved; }; struct PptpCallDisconnectNotify { - __u16 callID; + __be16 callID; __u8 resultCode; __u8 generalErrorCode; - __u16 causeCode; + __be16 causeCode; __u16 reserved; __u8 callStatistics[128]; }; struct PptpWanErrorNotify { - __u16 peersCallID; + __be16 peersCallID; __u16 reserved; - __u32 crcErrors; - __u32 framingErrors; - __u32 hardwareOverRuns; - __u32 bufferOverRuns; - __u32 timeoutErrors; - __u32 alignmentErrors; + __be32 crcErrors; + __be32 framingErrors; + __be32 hardwareOverRuns; + __be32 bufferOverRuns; + __be32 timeoutErrors; + __be32 alignmentErrors; }; struct PptpSetLinkInfo { - __u16 peersCallID; + __be16 peersCallID; __u16 reserved; - __u32 sendAccm; - __u32 recvAccm; + __be32 sendAccm; + __be32 recvAccm; }; diff --git a/include/linux/netfilter_ipv4/ip_conntrack_tuple.h b/include/linux/netfilter_ipv4/ip_conntrack_tuple.h index 14dc0f7b6556..20e43f018b7c 100644 --- a/include/linux/netfilter_ipv4/ip_conntrack_tuple.h +++ b/include/linux/netfilter_ipv4/ip_conntrack_tuple.h @@ -17,7 +17,7 @@ union ip_conntrack_manip_proto u_int16_t all; struct { - u_int16_t port; + __be16 port; } tcp; struct { u_int16_t port; @@ -29,7 +29,7 @@ union ip_conntrack_manip_proto u_int16_t port; } sctp; struct { - u_int16_t key; /* key is 32bit, pptp only uses 16 */ + __be16 key; /* key is 32bit, pptp only uses 16 */ } gre; }; @@ -65,7 +65,7 @@ struct ip_conntrack_tuple u_int16_t port; } sctp; struct { - u_int16_t key; /* key is 32bit, + __be16 key; /* key is 32bit, * pptp only uses 16 */ } gre; } u; diff --git a/net/ipv4/netfilter/ip_conntrack_helper_pptp.c b/net/ipv4/netfilter/ip_conntrack_helper_pptp.c index 117587978700..8236ee0fb090 100644 --- a/net/ipv4/netfilter/ip_conntrack_helper_pptp.c +++ b/net/ipv4/netfilter/ip_conntrack_helper_pptp.c @@ -223,8 +223,8 @@ static void pptp_destroy_siblings(struct ip_conntrack *ct) static inline int exp_gre(struct ip_conntrack *master, u_int32_t seq, - u_int16_t callid, - u_int16_t peer_callid) + __be16 callid, + __be16 peer_callid) { struct ip_conntrack_tuple inv_tuple; struct ip_conntrack_tuple exp_tuples[] = { @@ -263,7 +263,7 @@ exp_gre(struct ip_conntrack *master, exp_orig->mask.src.ip = 0xffffffff; exp_orig->mask.src.u.all = 0; exp_orig->mask.dst.u.all = 0; - exp_orig->mask.dst.u.gre.key = 0xffff; + exp_orig->mask.dst.u.gre.key = htons(0xffff); exp_orig->mask.dst.ip = 0xffffffff; exp_orig->mask.dst.protonum = 0xff; @@ -340,7 +340,8 @@ pptp_inbound_pkt(struct sk_buff **pskb, unsigned int reqlen; union pptp_ctrl_union _pptpReq, *pptpReq; struct ip_ct_pptp_master *info = &ct->help.ct_pptp_info; - u_int16_t msg, *cid, *pcid; + u_int16_t msg; + __be16 *cid, *pcid; u_int32_t seq; ctlh = skb_header_pointer(*pskb, nexthdr_off, sizeof(_ctlh), &_ctlh); @@ -551,7 +552,8 @@ pptp_outbound_pkt(struct sk_buff **pskb, unsigned int reqlen; union pptp_ctrl_union _pptpReq, *pptpReq; struct ip_ct_pptp_master *info = &ct->help.ct_pptp_info; - u_int16_t msg, *cid, *pcid; + u_int16_t msg; + __be16 *cid, *pcid; ctlh = skb_header_pointer(*pskb, nexthdr_off, sizeof(_ctlh), &_ctlh); if (!ctlh) @@ -755,7 +757,7 @@ static struct ip_conntrack_helper pptp = { } }, .mask = { .src = { .ip = 0, - .u = { .tcp = { .port = 0xffff } } + .u = { .tcp = { .port = __constant_htons(0xffff) } } }, .dst = { .ip = 0, .u = { .all = 0 }, From a82b748930fce0dab22c64075c38c830ae116904 Mon Sep 17 00:00:00 2001 From: Harald Welte Date: Thu, 22 Sep 2005 23:45:44 -0700 Subject: [PATCH 094/352] [NETFILTER] remove unneeded structure definition from conntrack helper Signed-off-by: Harald Welte Signed-off-by: David S. Miller --- include/linux/netfilter_ipv4/ip_conntrack_pptp.h | 7 ------- 1 file changed, 7 deletions(-) diff --git a/include/linux/netfilter_ipv4/ip_conntrack_pptp.h b/include/linux/netfilter_ipv4/ip_conntrack_pptp.h index 50a761db5a04..816144c75de0 100644 --- a/include/linux/netfilter_ipv4/ip_conntrack_pptp.h +++ b/include/linux/netfilter_ipv4/ip_conntrack_pptp.h @@ -284,13 +284,6 @@ struct PptpSetLinkInfo { __be32 recvAccm; }; - -struct pptp_priv_data { - __u16 call_id; - __u16 mcall_id; - __u16 pcall_id; -}; - union pptp_ctrl_union { struct PptpStartSessionRequest sreq; struct PptpStartSessionReply srep; From 1dfbab59498d6f227c91988bab6c71af049a5333 Mon Sep 17 00:00:00 2001 From: Harald Welte Date: Thu, 22 Sep 2005 23:46:57 -0700 Subject: [PATCH 095/352] [NETFILTER] Fix conntrack event cache deadlock/oops This patch fixes a number of bugs. It cannot be reasonably split up in multiple fixes, since all bugs interact with each other and affect the same function: Bug #1: The event cache code cannot be called while a lock is held. Therefore, the call to ip_conntrack_event_cache() within ip_ct_refresh_acct() needs to be moved outside of the locked section. This fixes a number of 2.6.14-rcX oops and deadlock reports. Bug #2: We used to call ct_add_counters() for unconfirmed connections without holding a lock. Since the add operations are not atomic, we could race with another CPU. Bug #3: ip_ct_refresh_acct() lost REFRESH events in some cases where refresh (and the corresponding event) are desired, but no accounting shall be performed. Both, evenst and accounting implicitly depended on the skb parameter bein non-null. We now re-introduce a non-accounting "ip_ct_refresh()" variant to explicitly state the desired behaviour. Signed-off-by: Harald Welte Signed-off-by: David S. Miller --- include/linux/netfilter_ipv4/ip_conntrack.h | 25 ++++++++-- net/ipv4/netfilter/ip_conntrack_amanda.c | 2 +- net/ipv4/netfilter/ip_conntrack_core.c | 49 ++++++++++--------- net/ipv4/netfilter/ip_conntrack_helper_pptp.c | 1 - net/ipv4/netfilter/ip_conntrack_netbios_ns.c | 2 +- net/ipv4/netfilter/ip_conntrack_standalone.c | 2 +- 6 files changed, 49 insertions(+), 32 deletions(-) diff --git a/include/linux/netfilter_ipv4/ip_conntrack.h b/include/linux/netfilter_ipv4/ip_conntrack.h index bace72a76cc4..4ced38736813 100644 --- a/include/linux/netfilter_ipv4/ip_conntrack.h +++ b/include/linux/netfilter_ipv4/ip_conntrack.h @@ -332,11 +332,28 @@ extern void need_ip_conntrack(void); extern int invert_tuplepr(struct ip_conntrack_tuple *inverse, const struct ip_conntrack_tuple *orig); +extern void __ip_ct_refresh_acct(struct ip_conntrack *ct, + enum ip_conntrack_info ctinfo, + const struct sk_buff *skb, + unsigned long extra_jiffies, + int do_acct); + +/* Refresh conntrack for this many jiffies and do accounting */ +static inline void ip_ct_refresh_acct(struct ip_conntrack *ct, + enum ip_conntrack_info ctinfo, + const struct sk_buff *skb, + unsigned long extra_jiffies) +{ + __ip_ct_refresh_acct(ct, ctinfo, skb, extra_jiffies, 1); +} + /* Refresh conntrack for this many jiffies */ -extern void ip_ct_refresh_acct(struct ip_conntrack *ct, - enum ip_conntrack_info ctinfo, - const struct sk_buff *skb, - unsigned long extra_jiffies); +static inline void ip_ct_refresh(struct ip_conntrack *ct, + const struct sk_buff *skb, + unsigned long extra_jiffies) +{ + __ip_ct_refresh_acct(ct, 0, skb, extra_jiffies, 0); +} /* These are for NAT. Icky. */ /* Update TCP window tracking data when NAT mangles the packet */ diff --git a/net/ipv4/netfilter/ip_conntrack_amanda.c b/net/ipv4/netfilter/ip_conntrack_amanda.c index dc20881004bc..fa3f914117ec 100644 --- a/net/ipv4/netfilter/ip_conntrack_amanda.c +++ b/net/ipv4/netfilter/ip_conntrack_amanda.c @@ -65,7 +65,7 @@ static int help(struct sk_buff **pskb, /* increase the UDP timeout of the master connection as replies from * Amanda clients to the server can be quite delayed */ - ip_ct_refresh_acct(ct, ctinfo, NULL, master_timeout * HZ); + ip_ct_refresh(ct, *pskb, master_timeout * HZ); /* No data? */ dataoff = (*pskb)->nh.iph->ihl*4 + sizeof(struct udphdr); diff --git a/net/ipv4/netfilter/ip_conntrack_core.c b/net/ipv4/netfilter/ip_conntrack_core.c index c1f82e0c81cf..ea65dd3e517a 100644 --- a/net/ipv4/netfilter/ip_conntrack_core.c +++ b/net/ipv4/netfilter/ip_conntrack_core.c @@ -1112,45 +1112,46 @@ void ip_conntrack_helper_unregister(struct ip_conntrack_helper *me) synchronize_net(); } -static inline void ct_add_counters(struct ip_conntrack *ct, - enum ip_conntrack_info ctinfo, - const struct sk_buff *skb) -{ -#ifdef CONFIG_IP_NF_CT_ACCT - if (skb) { - ct->counters[CTINFO2DIR(ctinfo)].packets++; - ct->counters[CTINFO2DIR(ctinfo)].bytes += - ntohs(skb->nh.iph->tot_len); - } -#endif -} - -/* Refresh conntrack for this many jiffies and do accounting (if skb != NULL) */ -void ip_ct_refresh_acct(struct ip_conntrack *ct, +/* Refresh conntrack for this many jiffies and do accounting if do_acct is 1 */ +void __ip_ct_refresh_acct(struct ip_conntrack *ct, enum ip_conntrack_info ctinfo, const struct sk_buff *skb, - unsigned long extra_jiffies) + unsigned long extra_jiffies, + int do_acct) { + int do_event = 0; + IP_NF_ASSERT(ct->timeout.data == (unsigned long)ct); + IP_NF_ASSERT(skb); + + write_lock_bh(&ip_conntrack_lock); /* If not in hash table, timer will not be active yet */ if (!is_confirmed(ct)) { ct->timeout.expires = extra_jiffies; - ct_add_counters(ct, ctinfo, skb); + do_event = 1; } else { - write_lock_bh(&ip_conntrack_lock); /* Need del_timer for race avoidance (may already be dying). */ if (del_timer(&ct->timeout)) { ct->timeout.expires = jiffies + extra_jiffies; add_timer(&ct->timeout); - /* FIXME: We loose some REFRESH events if this function - * is called without an skb. I'll fix this later -HW */ - if (skb) - ip_conntrack_event_cache(IPCT_REFRESH, skb); + do_event = 1; } - ct_add_counters(ct, ctinfo, skb); - write_unlock_bh(&ip_conntrack_lock); } + +#ifdef CONFIG_IP_NF_CT_ACCT + if (do_acct) { + ct->counters[CTINFO2DIR(ctinfo)].packets++; + ct->counters[CTINFO2DIR(ctinfo)].bytes += + ntohs(skb->nh.iph->tot_len); + } +#endif + + write_unlock_bh(&ip_conntrack_lock); + + /* must be unlocked when calling event cache */ + if (do_event) + ip_conntrack_event_cache(IPCT_REFRESH, skb); } #if defined(CONFIG_IP_NF_CONNTRACK_NETLINK) || \ diff --git a/net/ipv4/netfilter/ip_conntrack_helper_pptp.c b/net/ipv4/netfilter/ip_conntrack_helper_pptp.c index 8236ee0fb090..926a6684643d 100644 --- a/net/ipv4/netfilter/ip_conntrack_helper_pptp.c +++ b/net/ipv4/netfilter/ip_conntrack_helper_pptp.c @@ -172,7 +172,6 @@ static int destroy_sibling_or_exp(const struct ip_conntrack_tuple *t) DEBUGP("setting timeout of conntrack %p to 0\n", sibling); sibling->proto.gre.timeout = 0; sibling->proto.gre.stream_timeout = 0; - /* refresh_acct will not modify counters if skb == NULL */ if (del_timer(&sibling->timeout)) sibling->timeout.function((unsigned long)sibling); ip_conntrack_put(sibling); diff --git a/net/ipv4/netfilter/ip_conntrack_netbios_ns.c b/net/ipv4/netfilter/ip_conntrack_netbios_ns.c index 71ef19d126d0..577bac22dcc6 100644 --- a/net/ipv4/netfilter/ip_conntrack_netbios_ns.c +++ b/net/ipv4/netfilter/ip_conntrack_netbios_ns.c @@ -91,7 +91,7 @@ static int help(struct sk_buff **pskb, ip_conntrack_expect_related(exp); ip_conntrack_expect_put(exp); - ip_ct_refresh_acct(ct, ctinfo, NULL, timeout * HZ); + ip_ct_refresh(ct, *pskb, timeout * HZ); out: return NF_ACCEPT; } diff --git a/net/ipv4/netfilter/ip_conntrack_standalone.c b/net/ipv4/netfilter/ip_conntrack_standalone.c index d3c7808010ec..dd476b191f4b 100644 --- a/net/ipv4/netfilter/ip_conntrack_standalone.c +++ b/net/ipv4/netfilter/ip_conntrack_standalone.c @@ -989,7 +989,7 @@ EXPORT_SYMBOL(need_ip_conntrack); EXPORT_SYMBOL(ip_conntrack_helper_register); EXPORT_SYMBOL(ip_conntrack_helper_unregister); EXPORT_SYMBOL(ip_ct_iterate_cleanup); -EXPORT_SYMBOL(ip_ct_refresh_acct); +EXPORT_SYMBOL(__ip_ct_refresh_acct); EXPORT_SYMBOL(ip_conntrack_expect_alloc); EXPORT_SYMBOL(ip_conntrack_expect_put); From eb0e0076878a4f9e8e6e7e524ded0d6f7d4a6130 Mon Sep 17 00:00:00 2001 From: Sridhar Samudrala Date: Thu, 22 Sep 2005 23:48:38 -0700 Subject: [PATCH 096/352] [SCTP]: Fix SCTP_SHUTDOWN notifications. Fix to allow SCTP_SHUTDOWN notifications to be received on 1-1 style SCTP SOCK_STREAM sockets. Add SCTP_SHUTDOWN notification to the receive queue before updating the state of the association. Signed-off-by: Sridhar Samudrala Signed-off-by: Neil Horman Signed-off-by: David S. Miller --- net/sctp/sm_statefuns.c | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c index 86073df418f5..505c7de10c50 100644 --- a/net/sctp/sm_statefuns.c +++ b/net/sctp/sm_statefuns.c @@ -2414,6 +2414,17 @@ sctp_disposition_t sctp_sf_do_9_2_shutdown(const struct sctp_endpoint *ep, skb_pull(chunk->skb, sizeof(sctp_shutdownhdr_t)); chunk->subh.shutdown_hdr = sdh; + /* API 5.3.1.5 SCTP_SHUTDOWN_EVENT + * When a peer sends a SHUTDOWN, SCTP delivers this notification to + * inform the application that it should cease sending data. + */ + ev = sctp_ulpevent_make_shutdown_event(asoc, 0, GFP_ATOMIC); + if (!ev) { + disposition = SCTP_DISPOSITION_NOMEM; + goto out; + } + sctp_add_cmd_sf(commands, SCTP_CMD_EVENT_ULP, SCTP_ULPEVENT(ev)); + /* Upon the reception of the SHUTDOWN, the peer endpoint shall * - enter the SHUTDOWN-RECEIVED state, * - stop accepting new data from its SCTP user @@ -2439,17 +2450,6 @@ sctp_disposition_t sctp_sf_do_9_2_shutdown(const struct sctp_endpoint *ep, sctp_add_cmd_sf(commands, SCTP_CMD_PROCESS_CTSN, SCTP_U32(chunk->subh.shutdown_hdr->cum_tsn_ack)); - /* API 5.3.1.5 SCTP_SHUTDOWN_EVENT - * When a peer sends a SHUTDOWN, SCTP delivers this notification to - * inform the application that it should cease sending data. - */ - ev = sctp_ulpevent_make_shutdown_event(asoc, 0, GFP_ATOMIC); - if (!ev) { - disposition = SCTP_DISPOSITION_NOMEM; - goto out; - } - sctp_add_cmd_sf(commands, SCTP_CMD_EVENT_ULP, SCTP_ULPEVENT(ev)); - out: return disposition; } From 9389d79fbf9a0167ff2de87e8796c6bb803219bf Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Fri, 23 Sep 2005 05:18:45 -0400 Subject: [PATCH 097/352] [PATCH] 8390 Tx fix for non i386 machines While this is true, E8390_CMD is zero on i386, and thus there should be no effect for these machines. Machines like Mac, Amiga etc. which use Alan's clever register mapping may have a non-zero E8390_CMD and result in bogus "transmitter busy" type messages from this bug. Fixes BUG# 3991. --- drivers/net/8390.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/8390.c b/drivers/net/8390.c index 6d76f3a99b17..f87027420081 100644 --- a/drivers/net/8390.c +++ b/drivers/net/8390.c @@ -1094,7 +1094,7 @@ static void NS8390_trigger_send(struct net_device *dev, unsigned int length, outb_p(E8390_NODMA+E8390_PAGE0, e8390_base+E8390_CMD); - if (inb_p(e8390_base) & E8390_TRANS) + if (inb_p(e8390_base + E8390_CMD) & E8390_TRANS) { printk(KERN_WARNING "%s: trigger_send() called with the transmitter busy.\n", dev->name); From 715dc636b64b57aee7aee7e8b5bf4f5267a6df48 Mon Sep 17 00:00:00 2001 From: Anton Altaparmakov Date: Fri, 23 Sep 2005 11:24:28 +0100 Subject: [PATCH 098/352] NTFS: Change ntfs_cluster_free() to require a write locked runlist on entry since we otherwise get into a lock reversal deadlock if a read locked runlist is passed in. In the process also change it to take an ntfs inode instead of a vfs inode as parameter. Signed-off-by: Anton Altaparmakov --- fs/ntfs/ChangeLog | 4 ++++ fs/ntfs/Makefile | 2 +- fs/ntfs/lcnalloc.c | 31 +++++++++++++------------------ fs/ntfs/lcnalloc.h | 27 +++++++++++++-------------- fs/ntfs/mft.c | 2 +- 5 files changed, 32 insertions(+), 34 deletions(-) diff --git a/fs/ntfs/ChangeLog b/fs/ntfs/ChangeLog index ee8665f62a65..574896f27c36 100644 --- a/fs/ntfs/ChangeLog +++ b/fs/ntfs/ChangeLog @@ -25,6 +25,10 @@ ToDo/Notes: 2.1.25-WIP - Fix sparse warnings that have crept in over time. + - Change ntfs_cluster_free() to require a write locked runlist on entry + since we otherwise get into a lock reversal deadlock if a read locked + runlist is passed in. In the process also change it to take an ntfs + inode instead of a vfs inode as parameter. 2.1.24 - Lots of bug fixes and support more clean journal states. diff --git a/fs/ntfs/Makefile b/fs/ntfs/Makefile index 894b2b876d35..a3ce2c0e7dd9 100644 --- a/fs/ntfs/Makefile +++ b/fs/ntfs/Makefile @@ -6,7 +6,7 @@ ntfs-objs := aops.o attrib.o collate.o compress.o debug.o dir.o file.o \ index.o inode.o mft.o mst.o namei.o runlist.o super.o sysctl.o \ unistr.o upcase.o -EXTRA_CFLAGS = -DNTFS_VERSION=\"2.1.24\" +EXTRA_CFLAGS = -DNTFS_VERSION=\"2.1.25-WIP\" ifeq ($(CONFIG_NTFS_DEBUG),y) EXTRA_CFLAGS += -DDEBUG diff --git a/fs/ntfs/lcnalloc.c b/fs/ntfs/lcnalloc.c index 7b5934290685..5af3bf0b7eee 100644 --- a/fs/ntfs/lcnalloc.c +++ b/fs/ntfs/lcnalloc.c @@ -779,14 +779,13 @@ out: /** * __ntfs_cluster_free - free clusters on an ntfs volume - * @vi: vfs inode whose runlist describes the clusters to free - * @start_vcn: vcn in the runlist of @vi at which to start freeing clusters + * @ni: ntfs inode whose runlist describes the clusters to free + * @start_vcn: vcn in the runlist of @ni at which to start freeing clusters * @count: number of clusters to free or -1 for all clusters - * @write_locked: true if the runlist is locked for writing * @is_rollback: true if this is a rollback operation * * Free @count clusters starting at the cluster @start_vcn in the runlist - * described by the vfs inode @vi. + * described by the vfs inode @ni. * * If @count is -1, all clusters from @start_vcn to the end of the runlist are * deallocated. Thus, to completely free all clusters in a runlist, use @@ -801,31 +800,28 @@ out: * Return the number of deallocated clusters (not counting sparse ones) on * success and -errno on error. * - * Locking: - The runlist described by @vi must be locked on entry and is - * locked on return. Note if the runlist is locked for reading the - * lock may be dropped and reacquired. Note the runlist may be - * modified when needed runlist fragments need to be mapped. + * Locking: - The runlist described by @ni must be locked for writing on entry + * and is locked on return. Note the runlist may be modified when + * needed runlist fragments need to be mapped. * - The volume lcn bitmap must be unlocked on entry and is unlocked * on return. * - This function takes the volume lcn bitmap lock for writing and * modifies the bitmap contents. */ -s64 __ntfs_cluster_free(struct inode *vi, const VCN start_vcn, s64 count, - const BOOL write_locked, const BOOL is_rollback) +s64 __ntfs_cluster_free(ntfs_inode *ni, const VCN start_vcn, s64 count, + const BOOL is_rollback) { s64 delta, to_free, total_freed, real_freed; - ntfs_inode *ni; ntfs_volume *vol; struct inode *lcnbmp_vi; runlist_element *rl; int err; - BUG_ON(!vi); + BUG_ON(!ni); ntfs_debug("Entering for i_ino 0x%lx, start_vcn 0x%llx, count " - "0x%llx.%s", vi->i_ino, (unsigned long long)start_vcn, + "0x%llx.%s", ni->mft_no, (unsigned long long)start_vcn, (unsigned long long)count, is_rollback ? " (rollback)" : ""); - ni = NTFS_I(vi); vol = ni->vol; lcnbmp_vi = vol->lcnbmp_ino; BUG_ON(!lcnbmp_vi); @@ -843,7 +839,7 @@ s64 __ntfs_cluster_free(struct inode *vi, const VCN start_vcn, s64 count, total_freed = real_freed = 0; - rl = ntfs_attr_find_vcn_nolock(ni, start_vcn, write_locked); + rl = ntfs_attr_find_vcn_nolock(ni, start_vcn, TRUE); if (IS_ERR(rl)) { if (!is_rollback) ntfs_error(vol->sb, "Failed to find first runlist " @@ -897,7 +893,7 @@ s64 __ntfs_cluster_free(struct inode *vi, const VCN start_vcn, s64 count, /* Attempt to map runlist. */ vcn = rl->vcn; - rl = ntfs_attr_find_vcn_nolock(ni, vcn, write_locked); + rl = ntfs_attr_find_vcn_nolock(ni, vcn, TRUE); if (IS_ERR(rl)) { err = PTR_ERR(rl); if (!is_rollback) @@ -965,8 +961,7 @@ err_out: * If rollback fails, set the volume errors flag, emit an error * message, and return the error code. */ - delta = __ntfs_cluster_free(vi, start_vcn, total_freed, write_locked, - TRUE); + delta = __ntfs_cluster_free(ni, start_vcn, total_freed, TRUE); if (delta < 0) { ntfs_error(vol->sb, "Failed to rollback (error %i). Leaving " "inconsistent metadata! Unmount and run " diff --git a/fs/ntfs/lcnalloc.h b/fs/ntfs/lcnalloc.h index e4d7fb98d685..a6a8827882e7 100644 --- a/fs/ntfs/lcnalloc.h +++ b/fs/ntfs/lcnalloc.h @@ -2,7 +2,7 @@ * lcnalloc.h - Exports for NTFS kernel cluster (de)allocation. Part of the * Linux-NTFS project. * - * Copyright (c) 2004 Anton Altaparmakov + * Copyright (c) 2004-2005 Anton Altaparmakov * * This program/include file is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as published @@ -28,6 +28,7 @@ #include #include "types.h" +#include "inode.h" #include "runlist.h" #include "volume.h" @@ -42,18 +43,17 @@ extern runlist_element *ntfs_cluster_alloc(ntfs_volume *vol, const VCN start_vcn, const s64 count, const LCN start_lcn, const NTFS_CLUSTER_ALLOCATION_ZONES zone); -extern s64 __ntfs_cluster_free(struct inode *vi, const VCN start_vcn, - s64 count, const BOOL write_locked, const BOOL is_rollback); +extern s64 __ntfs_cluster_free(ntfs_inode *ni, const VCN start_vcn, + s64 count, const BOOL is_rollback); /** * ntfs_cluster_free - free clusters on an ntfs volume - * @vi: vfs inode whose runlist describes the clusters to free - * @start_vcn: vcn in the runlist of @vi at which to start freeing clusters + * @ni: ntfs inode whose runlist describes the clusters to free + * @start_vcn: vcn in the runlist of @ni at which to start freeing clusters * @count: number of clusters to free or -1 for all clusters - * @write_locked: true if the runlist is locked for writing * * Free @count clusters starting at the cluster @start_vcn in the runlist - * described by the vfs inode @vi. + * described by the ntfs inode @ni. * * If @count is -1, all clusters from @start_vcn to the end of the runlist are * deallocated. Thus, to completely free all clusters in a runlist, use @@ -65,19 +65,18 @@ extern s64 __ntfs_cluster_free(struct inode *vi, const VCN start_vcn, * Return the number of deallocated clusters (not counting sparse ones) on * success and -errno on error. * - * Locking: - The runlist described by @vi must be locked on entry and is - * locked on return. Note if the runlist is locked for reading the - * lock may be dropped and reacquired. Note the runlist may be - * modified when needed runlist fragments need to be mapped. + * Locking: - The runlist described by @ni must be locked for writing on entry + * and is locked on return. Note the runlist may be modified when + * needed runlist fragments need to be mapped. * - The volume lcn bitmap must be unlocked on entry and is unlocked * on return. * - This function takes the volume lcn bitmap lock for writing and * modifies the bitmap contents. */ -static inline s64 ntfs_cluster_free(struct inode *vi, const VCN start_vcn, - s64 count, const BOOL write_locked) +static inline s64 ntfs_cluster_free(ntfs_inode *ni, const VCN start_vcn, + s64 count) { - return __ntfs_cluster_free(vi, start_vcn, count, write_locked, FALSE); + return __ntfs_cluster_free(ni, start_vcn, count, FALSE); } extern int ntfs_cluster_free_from_rl_nolock(ntfs_volume *vol, diff --git a/fs/ntfs/mft.c b/fs/ntfs/mft.c index 2c32b84385a8..247586d1d5dc 100644 --- a/fs/ntfs/mft.c +++ b/fs/ntfs/mft.c @@ -1953,7 +1953,7 @@ restore_undo_alloc: a = ctx->attr; a->data.non_resident.highest_vcn = cpu_to_sle64(old_last_vcn - 1); undo_alloc: - if (ntfs_cluster_free(vol->mft_ino, old_last_vcn, -1, TRUE) < 0) { + if (ntfs_cluster_free(mft_ni, old_last_vcn, -1) < 0) { ntfs_error(vol->sb, "Failed to free clusters from mft data " "attribute.%s", es); NVolSetErrors(vol); From 12f44f46bc9c6dc79255e661b085797af395d8da Mon Sep 17 00:00:00 2001 From: Ivan Kokshaysky Date: Thu, 22 Sep 2005 21:06:31 -0700 Subject: [PATCH 099/352] [PATCH] pci: fixup parent subordinate busnr I believe the change that broke things is introduction of pci_fixup_parent_subordinate_busnr(). The patch here does two things: - hunk #1 should fix the problems you've seen when you boot without additional "pci" kernel options; - hunk #2 supposedly fixes boot with "pci=assign-busses" option which otherwise hangs Acer TM81xx machines as reported. Please try this with and without "pci=assign-busses". If it boots, I'd like to see 'lspci -vvx' for both cases. Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/pci/probe.c | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index c77d5b1bbff6..005786416bb5 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -402,6 +402,12 @@ static void pci_enable_crs(struct pci_dev *dev) static void __devinit pci_fixup_parent_subordinate_busnr(struct pci_bus *child, int max) { struct pci_bus *parent = child->parent; + + /* Attempts to fix that up are really dangerous unless + we're going to re-assign all bus numbers. */ + if (!pcibios_assign_all_busses()) + return; + while (parent->parent && parent->subordinate < max) { parent->subordinate = max; pci_write_config_byte(parent->self, PCI_SUBORDINATE_BUS, max); @@ -478,8 +484,18 @@ int __devinit pci_scan_bridge(struct pci_bus *bus, struct pci_dev * dev, int max * We need to assign a number to this bus which we always * do in the second pass. */ - if (!pass) + if (!pass) { + if (pcibios_assign_all_busses()) + /* Temporarily disable forwarding of the + configuration cycles on all bridges in + this bus segment to avoid possible + conflicts in the second pass between two + bridges programmed with overlapping + bus ranges. */ + pci_write_config_dword(dev, PCI_PRIMARY_BUS, + buses & ~0xffffff); return max; + } /* Clear errors */ pci_write_config_word(dev, PCI_STATUS, 0xffff); From ede1327ea4ca8019ec6df24b3e837def091c26b8 Mon Sep 17 00:00:00 2001 From: Steve French Date: Tue, 30 Aug 2005 20:10:14 -0700 Subject: [PATCH 100/352] [PATCH] cifs: Add support for suspend cifsd had been preventing software suspend from completing. Signed-off-by: pavel@suse.de Signed-off-by: Steve French lightly modified Signed-off-by: Linus Torvalds --- fs/cifs/cifsfs.c | 2 ++ fs/cifs/connect.c | 2 ++ 2 files changed, 4 insertions(+) diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index 8cc23e7d0d5d..1ebf7dafc1d7 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -781,6 +781,8 @@ static int cifs_oplock_thread(void * dummyarg) oplockThread = current; do { + if (try_to_freeze()) + continue; set_current_state(TASK_INTERRUPTIBLE); schedule_timeout(1*HZ); diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 2335f14a1583..47360156cc54 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -344,6 +344,8 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server) } while (server->tcpStatus != CifsExiting) { + if (try_to_freeze()) + continue; if (bigbuf == NULL) { bigbuf = cifs_buf_get(); if(bigbuf == NULL) { From 1c9ea5db001142a96fec8fed0f92f26892a1b6ac Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Fri, 23 Sep 2005 11:54:43 -0700 Subject: [PATCH 101/352] [SPARC64]: Kill unused variable in setup_arch() 'highest_paddr' is set, but never actually used. Signed-off-by: David S. Miller --- arch/sparc64/kernel/setup.c | 7 ------- 1 file changed, 7 deletions(-) diff --git a/arch/sparc64/kernel/setup.c b/arch/sparc64/kernel/setup.c index 0296cb00fc99..f4345d837284 100644 --- a/arch/sparc64/kernel/setup.c +++ b/arch/sparc64/kernel/setup.c @@ -496,7 +496,6 @@ extern void paging_init(void); void __init setup_arch(char **cmdline_p) { - unsigned long highest_paddr; int i; /* Initialize PROM console and command line. */ @@ -519,11 +518,7 @@ void __init setup_arch(char **cmdline_p) idprom_init(); (void) prom_probe_memory(); - /* In paging_init() we tip off this value to see if we need - * to change init_mm.pgd to point to the real alias mapping. - */ phys_base = 0xffffffffffffffffUL; - highest_paddr = 0UL; for (i = 0; sp_banks[i].num_bytes != 0; i++) { unsigned long top; @@ -531,8 +526,6 @@ void __init setup_arch(char **cmdline_p) phys_base = sp_banks[i].base_addr; top = sp_banks[i].base_addr + sp_banks[i].num_bytes; - if (highest_paddr < top) - highest_paddr = top; } pfn_base = phys_base >> PAGE_SHIFT; From 898cf0ecb7959db97d71cbce19685ce73a28d47c Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Fri, 23 Sep 2005 11:59:44 -0700 Subject: [PATCH 102/352] [SPARC64]: Mark functions called by paging_init() as __init. Signed-off-by: David S. Miller --- arch/sparc64/mm/init.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c index e0b9eebf21ce..cf747372f0c9 100644 --- a/arch/sparc64/mm/init.c +++ b/arch/sparc64/mm/init.c @@ -410,7 +410,7 @@ unsigned long prom_virt_to_phys(unsigned long promva, int *error) * HI_OBP_ADDRESS range are handled in entry.S and do not use the vpte * scheme (also, see rant in inherit_locked_prom_mappings()). */ -static void build_obp_range(unsigned long start, unsigned long end, unsigned long data) +static void __init build_obp_range(unsigned long start, unsigned long end, unsigned long data) { unsigned long vaddr; @@ -454,7 +454,7 @@ static inline int in_obp_range(unsigned long vaddr) } #define OBP_PMD_SIZE 2048 -static void build_obp_pgtable(int prom_trans_ents) +static void __init build_obp_pgtable(int prom_trans_ents) { unsigned long i; @@ -480,7 +480,7 @@ static void build_obp_pgtable(int prom_trans_ents) /* Read OBP translations property into 'prom_trans[]'. * Return the number of entries. */ -static int read_obp_translations(void) +static int __init read_obp_translations(void) { int n, node; @@ -505,7 +505,7 @@ static int read_obp_translations(void) return n; } -static void remap_kernel(void) +static void __init remap_kernel(void) { unsigned long phys_page, tte_vaddr, tte_data; int tlb_ent = sparc64_highest_locked_tlbent(); @@ -531,7 +531,7 @@ static void remap_kernel(void) } } -static void inherit_prom_mappings(void) +static void __init inherit_prom_mappings(void) { int n; @@ -1604,7 +1604,7 @@ void __init mem_init(void) cheetah_ecache_flush_init(); } -void free_initmem (void) +void free_initmem(void) { unsigned long addr, initend; From 188a1eafa03aaa5e5fe6f53e637e704cd2c31c7c Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 23 Sep 2005 13:22:21 -0700 Subject: [PATCH 103/352] Make sure SIGKILL gets proper respect Bhavesh P. Davda noticed that SIGKILL wouldn't properly kill a process under just the right cicumstances: a stopped task that already had another signal queued would get the SIGKILL queued onto the shared queue, and there it would remain until SIGCONT. This simplifies the signal acceptance logic, and fixes the bug in the process. Losely based on an earlier patch by Bhavesh. Signed-off-by: Linus Torvalds --- kernel/signal.c | 31 ++++++++++++++----------------- 1 file changed, 14 insertions(+), 17 deletions(-) diff --git a/kernel/signal.c b/kernel/signal.c index b92c3c9f8b9a..5a274705ba19 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -936,34 +936,31 @@ force_sig_specific(int sig, struct task_struct *t) * as soon as they're available, so putting the signal on the shared queue * will be equivalent to sending it to one such thread. */ -#define wants_signal(sig, p, mask) \ - (!sigismember(&(p)->blocked, sig) \ - && !((p)->state & mask) \ - && !((p)->flags & PF_EXITING) \ - && (task_curr(p) || !signal_pending(p))) - +static inline int wants_signal(int sig, struct task_struct *p) +{ + if (sigismember(&p->blocked, sig)) + return 0; + if (p->flags & PF_EXITING) + return 0; + if (sig == SIGKILL) + return 1; + if (p->state & (TASK_STOPPED | TASK_TRACED)) + return 0; + return task_curr(p) || !signal_pending(p); +} static void __group_complete_signal(int sig, struct task_struct *p) { - unsigned int mask; struct task_struct *t; - /* - * Don't bother traced and stopped tasks (but - * SIGKILL will punch through that). - */ - mask = TASK_STOPPED | TASK_TRACED; - if (sig == SIGKILL) - mask = 0; - /* * Now find a thread we can wake up to take the signal off the queue. * * If the main thread wants the signal, it gets first crack. * Probably the least surprising to the average bear. */ - if (wants_signal(sig, p, mask)) + if (wants_signal(sig, p)) t = p; else if (thread_group_empty(p)) /* @@ -981,7 +978,7 @@ __group_complete_signal(int sig, struct task_struct *p) t = p->signal->curr_target = p; BUG_ON(t->tgid != p->tgid); - while (!wants_signal(sig, t, mask)) { + while (!wants_signal(sig, t)) { t = next_thread(t); if (t == p->signal->curr_target) /* From a3b5f0d43863402b03b3af9a7eaec0037a823374 Mon Sep 17 00:00:00 2001 From: Karsten Keil Date: Fri, 23 Sep 2005 13:24:05 -0700 Subject: [PATCH 104/352] [PATCH] hisax: remove URB_ASYNC_UNLINK usb_unlink_urb is always async now, so URB_ASYNC_UNLINK was removed from core USB and we must do as well. Signed-off-by: Karsten Keil Cc: Greg KH Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/isdn/hisax/st5481_b.c | 2 -- drivers/isdn/hisax/st5481_usb.c | 2 -- 2 files changed, 4 deletions(-) diff --git a/drivers/isdn/hisax/st5481_b.c b/drivers/isdn/hisax/st5481_b.c index 0a2536d62402..657817a591fe 100644 --- a/drivers/isdn/hisax/st5481_b.c +++ b/drivers/isdn/hisax/st5481_b.c @@ -209,9 +209,7 @@ static void st5481B_mode(struct st5481_bcs *bcs, int mode) bcs->mode = mode; // Cancel all USB transfers on this B channel - b_out->urb[0]->transfer_flags |= URB_ASYNC_UNLINK; usb_unlink_urb(b_out->urb[0]); - b_out->urb[1]->transfer_flags |= URB_ASYNC_UNLINK; usb_unlink_urb(b_out->urb[1]); b_out->busy = 0; diff --git a/drivers/isdn/hisax/st5481_usb.c b/drivers/isdn/hisax/st5481_usb.c index ffd5b2d45552..89fbeb58485d 100644 --- a/drivers/isdn/hisax/st5481_usb.c +++ b/drivers/isdn/hisax/st5481_usb.c @@ -645,9 +645,7 @@ void st5481_in_mode(struct st5481_in *in, int mode) in->mode = mode; - in->urb[0]->transfer_flags |= URB_ASYNC_UNLINK; usb_unlink_urb(in->urb[0]); - in->urb[1]->transfer_flags |= URB_ASYNC_UNLINK; usb_unlink_urb(in->urb[1]); if (in->mode != L1_MODE_NULL) { From 2601c2e278863cd48c01bce1377b4c9747893025 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Fri, 23 Sep 2005 13:24:06 -0700 Subject: [PATCH 105/352] [PATCH] atyfb c99 fix - fix this: drivers/video/aty/xlinit.c: In function `atyfb_xl_init': drivers/video/aty/xlinit.c:256: warning: ISO C90 forbids mixed declarations and code - repair some kooky coding style - Use ARRAY_SIZE() Cc: Tom 'spot' Callaway Cc: "Antonino A. Daplas" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/aty/xlinit.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/video/aty/xlinit.c b/drivers/video/aty/xlinit.c index 0bea0d8d7821..a085cbf74ecb 100644 --- a/drivers/video/aty/xlinit.c +++ b/drivers/video/aty/xlinit.c @@ -253,9 +253,11 @@ int atyfb_xl_init(struct fb_info *info) aty_st_le32(0xFC, 0x00000000, par); #if defined (CONFIG_FB_ATY_GENERIC_LCD) - int i; - for (i=0; i Date: Fri, 23 Sep 2005 13:24:07 -0700 Subject: [PATCH 106/352] [PATCH] ppc64: Fix huge pages MMU mapping bug Current kernel has a couple of sneaky bugs in the ppc64 hugetlb code that cause huge pages to be potentially left stale in the hash table and TLBs (improperly invalidated), with all the nasty consequences that can have. One is that we forgot to set the "secondary" bit in the hash PTEs when hashing a huge page in the secondary bucket (fortunately very rare). The other one is on non-LPAR machines (like Apple G5s), flush_hash_range() which is used to flush a batch of PTEs simply did not work for huge pages. Historically, our huge page code didn't batch, but this was changed without fixing this routine. This patch fixes both. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ppc64/mm/hash_native.c | 5 ++--- arch/ppc64/mm/hugetlbpage.c | 7 +++++-- 2 files changed, 7 insertions(+), 5 deletions(-) diff --git a/arch/ppc64/mm/hash_native.c b/arch/ppc64/mm/hash_native.c index 7626bb59954d..eb1bbb5b6c16 100644 --- a/arch/ppc64/mm/hash_native.c +++ b/arch/ppc64/mm/hash_native.c @@ -343,9 +343,7 @@ static void native_flush_hash_range(unsigned long context, hpte_t *hptep; unsigned long hpte_v; struct ppc64_tlb_batch *batch = &__get_cpu_var(ppc64_tlb_batch); - - /* XXX fix for large ptes */ - unsigned long large = 0; + unsigned long large; local_irq_save(flags); @@ -358,6 +356,7 @@ static void native_flush_hash_range(unsigned long context, va = (vsid << 28) | (batch->addr[i] & 0x0fffffff); batch->vaddr[j] = va; + large = pte_huge(batch->pte[i]); if (large) vpn = va >> HPAGE_SHIFT; else diff --git a/arch/ppc64/mm/hugetlbpage.c b/arch/ppc64/mm/hugetlbpage.c index 338771ec70d7..0ea0994ed974 100644 --- a/arch/ppc64/mm/hugetlbpage.c +++ b/arch/ppc64/mm/hugetlbpage.c @@ -710,10 +710,13 @@ repeat: hpte_group = ((~hash & htab_hash_mask) * HPTES_PER_GROUP) & ~0x7UL; slot = ppc_md.hpte_insert(hpte_group, va, prpn, - HPTE_V_LARGE, rflags); + HPTE_V_LARGE | + HPTE_V_SECONDARY, + rflags); if (slot == -1) { if (mftb() & 0x1) - hpte_group = ((hash & htab_hash_mask) * HPTES_PER_GROUP) & ~0x7UL; + hpte_group = ((hash & htab_hash_mask) * + HPTES_PER_GROUP)&~0x7UL; ppc_md.hpte_remove(hpte_group); goto repeat; From e7c965084392e23a3494f0247c75795360a3fa0d Mon Sep 17 00:00:00 2001 From: Hironobu Ishii Date: Fri, 23 Sep 2005 13:24:08 -0700 Subject: [PATCH 107/352] [PATCH] ipmi_msghandler: inconsistent spin_lock usage I found an inconsistent spin_lock usage in ipmi_smi_msg_received. Signed-off-by: Hironobu Ishii Cc: Corey Minyard Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/ipmi/ipmi_msghandler.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c index 463351d4f942..32fa82c78c73 100644 --- a/drivers/char/ipmi/ipmi_msghandler.c +++ b/drivers/char/ipmi/ipmi_msghandler.c @@ -2620,7 +2620,7 @@ void ipmi_smi_msg_received(ipmi_smi_t intf, spin_lock_irqsave(&(intf->waiting_msgs_lock), flags); if (!list_empty(&(intf->waiting_msgs))) { list_add_tail(&(msg->link), &(intf->waiting_msgs)); - spin_unlock(&(intf->waiting_msgs_lock)); + spin_unlock_irqrestore(&(intf->waiting_msgs_lock), flags); goto out_unlock; } spin_unlock_irqrestore(&(intf->waiting_msgs_lock), flags); @@ -2629,9 +2629,9 @@ void ipmi_smi_msg_received(ipmi_smi_t intf, if (rv > 0) { /* Could not handle the message now, just add it to a list to handle later. */ - spin_lock(&(intf->waiting_msgs_lock)); + spin_lock_irqsave(&(intf->waiting_msgs_lock), flags); list_add_tail(&(msg->link), &(intf->waiting_msgs)); - spin_unlock(&(intf->waiting_msgs_lock)); + spin_unlock_irqrestore(&(intf->waiting_msgs_lock), flags); } else if (rv == 0) { ipmi_free_smi_msg(msg); } From 86513e726b494796175b6c4fdd705797f01b0ca2 Mon Sep 17 00:00:00 2001 From: Harald Welte Date: Fri, 23 Sep 2005 13:24:10 -0700 Subject: [PATCH 108/352] [PATCH] documentation: sparse no longer uses bk, but git Signed-off-by: Harald Welte Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/sparse.txt | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Documentation/sparse.txt b/Documentation/sparse.txt index 5df44dc894e5..1829009db771 100644 --- a/Documentation/sparse.txt +++ b/Documentation/sparse.txt @@ -51,9 +51,9 @@ or you don't get any checking at all. Where to get sparse ~~~~~~~~~~~~~~~~~~~ -With BK, you can just get it from +With git, you can just get it from - bk://sparse.bkbits.net/sparse + rsync://rsync.kernel.org/pub/scm/devel/sparse/sparse.git and DaveJ has tar-balls at From dbdb90450059e17e8e005ebd3ce0a1fd6008a0c8 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Fri, 23 Sep 2005 13:24:10 -0700 Subject: [PATCH 109/352] [PATCH] revert oversized kmalloc check As davem points out, this wasn't such a great idea. There may be some code which does: size = 1024*1024; while (kmalloc(size, ...) == 0) size /= 2; which will now explode. Cc: "David S. Miller" Cc: Christoph Lameter Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/slab.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/mm/slab.c b/mm/slab.c index ad113c431e39..c9adfce00405 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -2907,7 +2907,8 @@ void *__kmalloc(size_t size, unsigned int __nocast flags) * functions. */ cachep = __find_general_cachep(size, flags); - BUG_ON(!cachep); /* Allocation size too large for kmalloc */ + if (unlikely(cachep == NULL)) + return NULL; return __cache_alloc(cachep, flags); } EXPORT_SYMBOL(__kmalloc); From 73394322a4bf4108847ba3c2eee33a81b1b44450 Mon Sep 17 00:00:00 2001 From: Russell King Date: Fri, 23 Sep 2005 21:49:58 +0100 Subject: [PATCH 110/352] [ARM] Fix context switch with ARMv6 + TLS We accidentally corrupted the TLS value when clearing out the ARMv6 exclusive monitor. Avoid doing so. Signed-off-by: Russell King --- arch/arm/kernel/entry-armv.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S index 7152bfbee581..93b5e8e5292e 100644 --- a/arch/arm/kernel/entry-armv.S +++ b/arch/arm/kernel/entry-armv.S @@ -537,7 +537,7 @@ ENTRY(__switch_to) #ifdef CONFIG_CPU_MPCORE clrex #else - strex r3, r4, [ip] @ Clear exclusive monitor + strex r5, r4, [ip] @ Clear exclusive monitor #endif #endif #if defined(CONFIG_CPU_XSCALE) && !defined(CONFIG_IWMMXT) From c8868611389aa28e0e5e0d63f468727781eac68c Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Fri, 23 Sep 2005 09:08:30 -0700 Subject: [PATCH 111/352] [PATCH] skge: fix Yukon-Lite A0 workaround This is one of those workarounds sucked over from sk98lin driver. The skge driver needs to detect the Yukon-Lite A0 chip properly, and turn of Rx FIFO Flush. Signed-off-by: Stephen Hemminger Signed-off-by: Jeff Garzik --- drivers/net/skge.c | 22 ++++++++++++++++++++-- 1 file changed, 20 insertions(+), 2 deletions(-) diff --git a/drivers/net/skge.c b/drivers/net/skge.c index ae1996a3bc5c..fd398da4993b 100644 --- a/drivers/net/skge.c +++ b/drivers/net/skge.c @@ -1643,6 +1643,22 @@ static void yukon_reset(struct skge_hw *hw, int port) | GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA); } +/* Apparently, early versions of Yukon-Lite had wrong chip_id? */ +static int is_yukon_lite_a0(struct skge_hw *hw) +{ + u32 reg; + int ret; + + if (hw->chip_id != CHIP_ID_YUKON) + return 0; + + reg = skge_read32(hw, B2_FAR); + skge_write8(hw, B2_FAR + 3, 0xff); + ret = (skge_read8(hw, B2_FAR + 3) != 0); + skge_write32(hw, B2_FAR, reg); + return ret; +} + static void yukon_mac_init(struct skge_hw *hw, int port) { struct skge_port *skge = netdev_priv(hw->dev[port]); @@ -1758,9 +1774,11 @@ static void yukon_mac_init(struct skge_hw *hw, int port) /* Configure Rx MAC FIFO */ skge_write16(hw, SK_REG(port, RX_GMF_FL_MSK), RX_FF_FL_DEF_MSK); reg = GMF_OPER_ON | GMF_RX_F_FL_ON; - if (hw->chip_id == CHIP_ID_YUKON_LITE && - hw->chip_rev >= CHIP_REV_YU_LITE_A3) + + /* disable Rx GMAC FIFO Flush for YUKON-Lite Rev. A0 only */ + if (is_yukon_lite_a0(hw)) reg &= ~GMF_RX_F_FL_ON; + skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_CLR); skge_write16(hw, SK_REG(port, RX_GMF_CTRL_T), reg); /* From f993724210744a9b07cf5496808828c4da6ab6df Mon Sep 17 00:00:00 2001 From: Russell King Date: Sat, 24 Sep 2005 10:12:47 +0100 Subject: [PATCH 112/352] [SERIAL] Remove unused variable in clps711x.c Signed-off-by: Russell King --- drivers/serial/clps711x.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/serial/clps711x.c b/drivers/serial/clps711x.c index 78c1f36ad9b7..87ef368384fb 100644 --- a/drivers/serial/clps711x.c +++ b/drivers/serial/clps711x.c @@ -98,7 +98,7 @@ static irqreturn_t clps711xuart_int_rx(int irq, void *dev_id, struct pt_regs *re { struct uart_port *port = dev_id; struct tty_struct *tty = port->info->tty; - unsigned int status, ch, flg, ignored = 0; + unsigned int status, ch, flg; status = clps_readl(SYSFLG(port)); while (!(status & SYSFLG_URXFE)) { From 6b9ea4213e3a9c9b8de29a001a2b8d8799cbc1c9 Mon Sep 17 00:00:00 2001 From: Russell King Date: Sat, 24 Sep 2005 10:24:37 +0100 Subject: [PATCH 113/352] [MFD] Fix "bious one-bit signed bitfield" errors ucb1x00-ts declared a couple of one-bit 'int' bitfields. Make them unsigned. Signed-off-by: Russell King --- drivers/mfd/ucb1x00-ts.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/mfd/ucb1x00-ts.c b/drivers/mfd/ucb1x00-ts.c index a851d65c7cfe..a260f83bcb02 100644 --- a/drivers/mfd/ucb1x00-ts.c +++ b/drivers/mfd/ucb1x00-ts.c @@ -48,8 +48,8 @@ struct ucb1x00_ts { u16 x_res; u16 y_res; - int restart:1; - int adcsync:1; + unsigned int restart:1; + unsigned int adcsync:1; }; static int adcsync; From d2f607484f8210cf19b1730dee26d426a5a770a5 Mon Sep 17 00:00:00 2001 From: Russell King Date: Sat, 24 Sep 2005 10:42:06 +0100 Subject: [PATCH 114/352] [ARM] Fix compiler warnings for memcpy_toio/memcpy_fromio/memset_io Add 'volatile' to the __iomem pointers for these functions as per x86. Signed-off-by: Russell King --- arch/arm/kernel/io.c | 6 +++--- include/asm-arm/io.h | 6 +++--- 2 files changed, 6 insertions(+), 6 deletions(-) diff --git a/arch/arm/kernel/io.c b/arch/arm/kernel/io.c index 6c20c1188b60..1f6822dfae74 100644 --- a/arch/arm/kernel/io.c +++ b/arch/arm/kernel/io.c @@ -7,7 +7,7 @@ * Copy data from IO memory space to "real" memory space. * This needs to be optimized. */ -void _memcpy_fromio(void *to, void __iomem *from, size_t count) +void _memcpy_fromio(void *to, const volatile void __iomem *from, size_t count) { unsigned char *t = to; while (count) { @@ -22,7 +22,7 @@ void _memcpy_fromio(void *to, void __iomem *from, size_t count) * Copy data from "real" memory space to IO memory space. * This needs to be optimized. */ -void _memcpy_toio(void __iomem *to, const void *from, size_t count) +void _memcpy_toio(volatile void __iomem *to, const void *from, size_t count) { const unsigned char *f = from; while (count) { @@ -37,7 +37,7 @@ void _memcpy_toio(void __iomem *to, const void *from, size_t count) * "memset" on IO memory space. * This needs to be optimized. */ -void _memset_io(void __iomem *dst, int c, size_t count) +void _memset_io(volatile void __iomem *dst, int c, size_t count) { while (count) { count--; diff --git a/include/asm-arm/io.h b/include/asm-arm/io.h index cfa71a0dffb6..5c4ae8f5dbb0 100644 --- a/include/asm-arm/io.h +++ b/include/asm-arm/io.h @@ -136,9 +136,9 @@ extern void __readwrite_bug(const char *fn); /* * String version of IO memory access ops: */ -extern void _memcpy_fromio(void *, void __iomem *, size_t); -extern void _memcpy_toio(void __iomem *, const void *, size_t); -extern void _memset_io(void __iomem *, int, size_t); +extern void _memcpy_fromio(void *, const volatile void __iomem *, size_t); +extern void _memcpy_toio(volatile void __iomem *, const void *, size_t); +extern void _memset_io(volatile void __iomem *, int, size_t); #define mmiowb() From ff13f98b97cb6c5a2d201dfa4db0a2fd0b4d9d50 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Sat, 24 Sep 2005 02:02:29 -0500 Subject: [PATCH 115/352] [PATCH] Input: check switch bitmap when matching handlers The wwitch bitmap was added to input_device_id structure and we should check it when matching handlers and input devices. Signed-off-by: Dmitry Torokhov Signed-off-by: Linus Torvalds --- drivers/input/input.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/input/input.c b/drivers/input/input.c index 88636a204525..14ae5583e198 100644 --- a/drivers/input/input.c +++ b/drivers/input/input.c @@ -308,6 +308,7 @@ static struct input_device_id *input_match_device(struct input_device_id *id, st MATCH_BIT(ledbit, LED_MAX); MATCH_BIT(sndbit, SND_MAX); MATCH_BIT(ffbit, FF_MAX); + MATCH_BIT(swbit, SW_MAX); return id; } From d67b24c40f81823abe5c1eb808bba1038969142b Mon Sep 17 00:00:00 2001 From: Harald Welte Date: Sat, 24 Sep 2005 16:52:03 -0700 Subject: [PATCH 116/352] [NETFILTER]: Fix ip[6]t_NFQUEUE Kconfig dependency We have to introduce a separate Kconfig menu entry for the NFQUEUE targets. They cannot "just" depend on nfnetlink_queue, since nfnetlink_queue could be linked into the kernel, whereas iptables can be a module. Signed-off-by: Harald Welte Signed-off-by: David S. Miller --- net/ipv4/netfilter/Kconfig | 11 +++++++++++ net/ipv4/netfilter/Makefile | 2 +- net/ipv6/netfilter/Kconfig | 11 +++++++++++ net/ipv6/netfilter/Makefile | 2 +- 4 files changed, 24 insertions(+), 2 deletions(-) diff --git a/net/ipv4/netfilter/Kconfig b/net/ipv4/netfilter/Kconfig index 3cf9b451675c..2cd7e7d1ac90 100644 --- a/net/ipv4/netfilter/Kconfig +++ b/net/ipv4/netfilter/Kconfig @@ -537,6 +537,17 @@ config IP_NF_TARGET_TCPMSS To compile it as a module, choose M here. If unsure, say N. +config IP_NF_TARGET_NFQUEUE + tristate "NFQUEUE Target Support" + depends on IP_NF_IPTABLES + help + This Target replaced the old obsolete QUEUE target. + + As opposed to QUEUE, it supports 65535 different queues, + not just one. + + To compile it as a module, choose M here. If unsure, say N. + # NAT + specific targets config IP_NF_NAT tristate "Full NAT" diff --git a/net/ipv4/netfilter/Makefile b/net/ipv4/netfilter/Makefile index 3d45d3c0283c..89002533f2a2 100644 --- a/net/ipv4/netfilter/Makefile +++ b/net/ipv4/netfilter/Makefile @@ -92,6 +92,7 @@ obj-$(CONFIG_IP_NF_TARGET_TCPMSS) += ipt_TCPMSS.o obj-$(CONFIG_IP_NF_TARGET_NOTRACK) += ipt_NOTRACK.o obj-$(CONFIG_IP_NF_TARGET_CLUSTERIP) += ipt_CLUSTERIP.o obj-$(CONFIG_IP_NF_TARGET_TTL) += ipt_TTL.o +obj-$(CONFIG_IP_NF_TARGET_NFQUEUE) += ipt_NFQUEUE.o # generic ARP tables obj-$(CONFIG_IP_NF_ARPTABLES) += arp_tables.o @@ -101,4 +102,3 @@ obj-$(CONFIG_IP_NF_ARP_MANGLE) += arpt_mangle.o obj-$(CONFIG_IP_NF_ARPFILTER) += arptable_filter.o obj-$(CONFIG_IP_NF_QUEUE) += ip_queue.o -obj-$(CONFIG_NETFILTER_NETLINK_QUEUE) += ipt_NFQUEUE.o diff --git a/net/ipv6/netfilter/Kconfig b/net/ipv6/netfilter/Kconfig index 216fbe1ac65c..bb7ccfe33f23 100644 --- a/net/ipv6/netfilter/Kconfig +++ b/net/ipv6/netfilter/Kconfig @@ -209,6 +209,17 @@ config IP6_NF_TARGET_REJECT To compile it as a module, choose M here. If unsure, say N. +config IP6_NF_TARGET_NFQUEUE + tristate "NFQUEUE Target Support" + depends on IP_NF_IPTABLES + help + This Target replaced the old obsolete QUEUE target. + + As opposed to QUEUE, it supports 65535 different queues, + not just one. + + To compile it as a module, choose M here. If unsure, say N. + # if [ "$CONFIG_IP6_NF_FILTER" != "n" ]; then # dep_tristate ' REJECT target support' CONFIG_IP6_NF_TARGET_REJECT $CONFIG_IP6_NF_FILTER # if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then diff --git a/net/ipv6/netfilter/Makefile b/net/ipv6/netfilter/Makefile index bd9a16a5cbba..2b2c370e8b1c 100644 --- a/net/ipv6/netfilter/Makefile +++ b/net/ipv6/netfilter/Makefile @@ -21,9 +21,9 @@ obj-$(CONFIG_IP6_NF_FILTER) += ip6table_filter.o obj-$(CONFIG_IP6_NF_MANGLE) += ip6table_mangle.o obj-$(CONFIG_IP6_NF_TARGET_MARK) += ip6t_MARK.o obj-$(CONFIG_IP6_NF_TARGET_HL) += ip6t_HL.o +obj-$(CONFIG_IP6_NF_TARGET_NFQUEUE) += ip6t_NFQUEUE.o obj-$(CONFIG_IP6_NF_QUEUE) += ip6_queue.o obj-$(CONFIG_IP6_NF_TARGET_LOG) += ip6t_LOG.o obj-$(CONFIG_IP6_NF_RAW) += ip6table_raw.o obj-$(CONFIG_IP6_NF_MATCH_HL) += ip6t_hl.o obj-$(CONFIG_IP6_NF_TARGET_REJECT) += ip6t_REJECT.o -obj-$(CONFIG_NETFILTER_NETLINK_QUEUE) += ip6t_NFQUEUE.o From 45fc3b11f1d419ed6c636e5ca84472d9805f520e Mon Sep 17 00:00:00 2001 From: Amos Waterland Date: Sat, 24 Sep 2005 16:53:16 -0700 Subject: [PATCH 117/352] [NET]: Protect neigh_stat_seq_fops by CONFIG_PROC_FS From: Amos Waterland If CONFIG_PROC_FS is not selected, the compiler emits this warning: net/core/neighbour.c:64: warning: `neigh_stat_seq_fops' defined but not used Which is correct, because neigh_stat_seq_fops is in fact only initialized and used by code that is protected by CONFIG_PROC_FS. So this patch fixes that up. Signed-off-by: Amos Waterland Signed-off-by: Andrew Morton Signed-off-by: David S. Miller --- net/core/neighbour.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/core/neighbour.c b/net/core/neighbour.c index 39fc55edf691..5f160082aafc 100644 --- a/net/core/neighbour.c +++ b/net/core/neighbour.c @@ -61,7 +61,9 @@ static int pneigh_ifdown(struct neigh_table *tbl, struct net_device *dev); void neigh_changeaddr(struct neigh_table *tbl, struct net_device *dev); static struct neigh_table *neigh_tables; +#ifdef CONFIG_PROC_FS static struct file_operations neigh_stat_seq_fops; +#endif /* Neighbour hash table buckets are protected with rwlock tbl->lock. From 15166fadb0308496bbff50c08ed5fe6a18d5cc4f Mon Sep 17 00:00:00 2001 From: Alexey Dobriyan Date: Sat, 24 Sep 2005 16:54:50 -0700 Subject: [PATCH 118/352] [IRDA]: Fix memory leak in irttp_init() Signed-off-by: Alexey Dobriyan Signed-off-by: David S. Miller --- net/irda/irttp.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/irda/irttp.c b/net/irda/irttp.c index 6602d901f8b1..1df6487609e1 100644 --- a/net/irda/irttp.c +++ b/net/irda/irttp.c @@ -100,6 +100,7 @@ int __init irttp_init(void) if (!irttp->tsaps) { IRDA_ERROR("%s: can't allocate IrTTP hashbin!\n", __FUNCTION__); + kfree(irttp); return -ENOMEM; } From 8689c07e47e928f8e329f667df8cf697a37425dd Mon Sep 17 00:00:00 2001 From: Alexey Dobriyan Date: Sat, 24 Sep 2005 16:55:17 -0700 Subject: [PATCH 119/352] [IRDA]: *irttp cleanup * Remove useless comment. * Remove useless assertions. * Remove useless comparison. Signed-off-by: Alexey Dobriyan Signed-off-by: David S. Miller --- net/irda/irttp.c | 15 ++++----------- 1 file changed, 4 insertions(+), 11 deletions(-) diff --git a/net/irda/irttp.c b/net/irda/irttp.c index 1df6487609e1..8aff254cb418 100644 --- a/net/irda/irttp.c +++ b/net/irda/irttp.c @@ -38,7 +38,7 @@ #include #include -static struct irttp_cb *irttp = NULL; +static struct irttp_cb *irttp; static void __irttp_close_tsap(struct tsap_cb *self); @@ -86,12 +86,9 @@ static pi_param_info_t param_info = { pi_major_call_table, 1, 0x0f, 4 }; */ int __init irttp_init(void) { - /* Initialize the irttp structure. */ - if (irttp == NULL) { - irttp = kmalloc(sizeof(struct irttp_cb), GFP_KERNEL); - if (irttp == NULL) - return -ENOMEM; - } + irttp = kmalloc(sizeof(struct irttp_cb), GFP_KERNEL); + if (irttp == NULL) + return -ENOMEM; memset(irttp, 0, sizeof(struct irttp_cb)); irttp->magic = TTP_MAGIC; @@ -116,7 +113,6 @@ int __init irttp_init(void) void __exit irttp_cleanup(void) { /* Check for main structure */ - IRDA_ASSERT(irttp != NULL, return;); IRDA_ASSERT(irttp->magic == TTP_MAGIC, return;); /* @@ -383,7 +379,6 @@ struct tsap_cb *irttp_open_tsap(__u8 stsap_sel, int credit, notify_t *notify) struct lsap_cb *lsap; notify_t ttp_notify; - IRDA_ASSERT(irttp != NULL, return NULL;); IRDA_ASSERT(irttp->magic == TTP_MAGIC, return NULL;); /* The IrLMP spec (IrLMP 1.1 p10) says that we have the right to @@ -1881,8 +1876,6 @@ static int irttp_seq_open(struct inode *inode, struct file *file) struct seq_file *seq; int rc = -ENOMEM; struct irttp_iter_state *s; - - IRDA_ASSERT(irttp != NULL, return -EINVAL;); s = kmalloc(sizeof(*s), GFP_KERNEL); if (!s) From 8ddec7460d2f5db3ac35812c03676b1473d1d668 Mon Sep 17 00:00:00 2001 From: Harald Welte Date: Sat, 24 Sep 2005 16:56:08 -0700 Subject: [PATCH 120/352] [NETFILTER] ip_conntrack: Update event cache when status changes The GRE, SCTP and TCP protocol helpers did not call ip_conntrack_event_cache() when updating ct->status. This patch adds the respective calls. Signed-off-by: Harald Welte Signed-off-by: David S. Miller --- net/ipv4/netfilter/ip_conntrack_proto_gre.c | 1 + net/ipv4/netfilter/ip_conntrack_proto_sctp.c | 1 + net/ipv4/netfilter/ip_conntrack_proto_tcp.c | 3 ++- 3 files changed, 4 insertions(+), 1 deletion(-) diff --git a/net/ipv4/netfilter/ip_conntrack_proto_gre.c b/net/ipv4/netfilter/ip_conntrack_proto_gre.c index de3cb9db6f85..744abb9d377a 100644 --- a/net/ipv4/netfilter/ip_conntrack_proto_gre.c +++ b/net/ipv4/netfilter/ip_conntrack_proto_gre.c @@ -247,6 +247,7 @@ static int gre_packet(struct ip_conntrack *ct, ct->proto.gre.stream_timeout); /* Also, more likely to be important, and not a probe. */ set_bit(IPS_ASSURED_BIT, &ct->status); + ip_conntrack_event_cache(IPCT_STATUS, skb); } else ip_ct_refresh_acct(ct, conntrackinfo, skb, ct->proto.gre.timeout); diff --git a/net/ipv4/netfilter/ip_conntrack_proto_sctp.c b/net/ipv4/netfilter/ip_conntrack_proto_sctp.c index a875f35e576d..59a4a0111dd3 100644 --- a/net/ipv4/netfilter/ip_conntrack_proto_sctp.c +++ b/net/ipv4/netfilter/ip_conntrack_proto_sctp.c @@ -416,6 +416,7 @@ static int sctp_packet(struct ip_conntrack *conntrack, && newconntrack == SCTP_CONNTRACK_ESTABLISHED) { DEBUGP("Setting assured bit\n"); set_bit(IPS_ASSURED_BIT, &conntrack->status); + ip_conntrack_event_cache(IPCT_STATUS, skb); } return NF_ACCEPT; diff --git a/net/ipv4/netfilter/ip_conntrack_proto_tcp.c b/net/ipv4/netfilter/ip_conntrack_proto_tcp.c index 1985abc59d24..121760d6cc50 100644 --- a/net/ipv4/netfilter/ip_conntrack_proto_tcp.c +++ b/net/ipv4/netfilter/ip_conntrack_proto_tcp.c @@ -1014,7 +1014,8 @@ static int tcp_packet(struct ip_conntrack *conntrack, /* Set ASSURED if we see see valid ack in ESTABLISHED after SYN_RECV or a valid answer for a picked up connection. */ - set_bit(IPS_ASSURED_BIT, &conntrack->status); + set_bit(IPS_ASSURED_BIT, &conntrack->status); + ip_conntrack_event_cache(IPCT_STATUS, skb); } ip_ct_refresh_acct(conntrack, ctinfo, skb, timeout); From 52f26deb7c67d5f34910660200b925c1a2b8df8c Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sat, 24 Sep 2005 23:06:14 -0700 Subject: [PATCH 121/352] [SPARC64]: Fix mask formation in tomatillo_wsync_handler() "1" needs to be "1UL", this is a 64-bit mask we're creating. Signed-off-by: David S. Miller --- arch/sparc64/kernel/pci_schizo.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/sparc64/kernel/pci_schizo.c b/arch/sparc64/kernel/pci_schizo.c index 331382e1a75d..cae5b61fe2f0 100644 --- a/arch/sparc64/kernel/pci_schizo.c +++ b/arch/sparc64/kernel/pci_schizo.c @@ -330,7 +330,7 @@ static int schizo_ino_to_pil(struct pci_dev *pdev, unsigned int ino) static void tomatillo_wsync_handler(struct ino_bucket *bucket, void *_arg1, void *_arg2) { unsigned long sync_reg = (unsigned long) _arg2; - u64 mask = 1 << (__irq_ino(__irq(bucket)) & IMAP_INO); + u64 mask = 1UL << (__irq_ino(__irq(bucket)) & IMAP_INO); u64 val; int limit; From 49bfd8db4a39ea14fb3780b162012b4b3611fce8 Mon Sep 17 00:00:00 2001 From: adam radford Date: Wed, 21 Sep 2005 17:20:14 -0700 Subject: [PATCH 122/352] [SCSI] 3ware 9000: Add support for 9550SX controllers Signed-off-by: Adam Radford Signed-off-by: James Bottomley --- drivers/scsi/3w-9xxx.c | 55 ++++++++++++++++++++++++++++++++++++------ drivers/scsi/3w-9xxx.h | 17 +++++++------ 2 files changed, 57 insertions(+), 15 deletions(-) diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c index a6ac61611f35..a748fbfb6692 100644 --- a/drivers/scsi/3w-9xxx.c +++ b/drivers/scsi/3w-9xxx.c @@ -60,6 +60,7 @@ Remove un-needed eh_abort handler. Add support for embedded firmware error strings. 2.26.02.003 - Correctly handle single sgl's with use_sg=1. + 2.26.02.004 - Add support for 9550SX controllers. */ #include @@ -82,7 +83,7 @@ #include "3w-9xxx.h" /* Globals */ -#define TW_DRIVER_VERSION "2.26.02.003" +#define TW_DRIVER_VERSION "2.26.02.004" static TW_Device_Extension *twa_device_extension_list[TW_MAX_SLOT]; static unsigned int twa_device_extension_count; static int twa_major = -1; @@ -892,11 +893,6 @@ static int twa_decode_bits(TW_Device_Extension *tw_dev, u32 status_reg_value) writel(TW_CONTROL_CLEAR_QUEUE_ERROR, TW_CONTROL_REG_ADDR(tw_dev)); } - if (status_reg_value & TW_STATUS_SBUF_WRITE_ERROR) { - TW_PRINTK(tw_dev->host, TW_DRIVER, 0xf, "SBUF Write Error: clearing"); - writel(TW_CONTROL_CLEAR_SBUF_WRITE_ERROR, TW_CONTROL_REG_ADDR(tw_dev)); - } - if (status_reg_value & TW_STATUS_MICROCONTROLLER_ERROR) { if (tw_dev->reset_print == 0) { TW_PRINTK(tw_dev->host, TW_DRIVER, 0x10, "Microcontroller Error: clearing"); @@ -930,6 +926,36 @@ out: return retval; } /* End twa_empty_response_queue() */ +/* This function will clear the pchip/response queue on 9550SX */ +static int twa_empty_response_queue_large(TW_Device_Extension *tw_dev) +{ + u32 status_reg_value, response_que_value; + int count = 0, retval = 1; + + if (tw_dev->tw_pci_dev->device == PCI_DEVICE_ID_3WARE_9550SX) { + status_reg_value = readl(TW_STATUS_REG_ADDR(tw_dev)); + + while (((status_reg_value & TW_STATUS_RESPONSE_QUEUE_EMPTY) == 0) && (count < TW_MAX_RESPONSE_DRAIN)) { + response_que_value = readl(TW_RESPONSE_QUEUE_REG_ADDR_LARGE(tw_dev)); + if ((response_que_value & TW_9550SX_DRAIN_COMPLETED) == TW_9550SX_DRAIN_COMPLETED) { + /* P-chip settle time */ + msleep(500); + retval = 0; + goto out; + } + status_reg_value = readl(TW_STATUS_REG_ADDR(tw_dev)); + count++; + } + if (count == TW_MAX_RESPONSE_DRAIN) + goto out; + + retval = 0; + } else + retval = 0; +out: + return retval; +} /* End twa_empty_response_queue_large() */ + /* This function passes sense keys from firmware to scsi layer */ static int twa_fill_sense(TW_Device_Extension *tw_dev, int request_id, int copy_sense, int print_host) { @@ -1613,8 +1639,16 @@ static int twa_reset_sequence(TW_Device_Extension *tw_dev, int soft_reset) int tries = 0, retval = 1, flashed = 0, do_soft_reset = soft_reset; while (tries < TW_MAX_RESET_TRIES) { - if (do_soft_reset) + if (do_soft_reset) { TW_SOFT_RESET(tw_dev); + /* Clear pchip/response queue on 9550SX */ + if (twa_empty_response_queue_large(tw_dev)) { + TW_PRINTK(tw_dev->host, TW_DRIVER, 0x36, "Response queue (large) empty failed during reset sequence"); + do_soft_reset = 1; + tries++; + continue; + } + } /* Make sure controller is in a good state */ if (twa_poll_status(tw_dev, TW_STATUS_MICROCONTROLLER_READY | (do_soft_reset == 1 ? TW_STATUS_ATTENTION_INTERRUPT : 0), 60)) { @@ -2034,7 +2068,10 @@ static int __devinit twa_probe(struct pci_dev *pdev, const struct pci_device_id goto out_free_device_extension; } - mem_addr = pci_resource_start(pdev, 1); + if (pdev->device == PCI_DEVICE_ID_3WARE_9000) + mem_addr = pci_resource_start(pdev, 1); + else + mem_addr = pci_resource_start(pdev, 2); /* Save base address */ tw_dev->base_addr = ioremap(mem_addr, PAGE_SIZE); @@ -2148,6 +2185,8 @@ static void twa_remove(struct pci_dev *pdev) static struct pci_device_id twa_pci_tbl[] __devinitdata = { { PCI_VENDOR_ID_3WARE, PCI_DEVICE_ID_3WARE_9000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, + { PCI_VENDOR_ID_3WARE, PCI_DEVICE_ID_3WARE_9550SX, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, { } }; MODULE_DEVICE_TABLE(pci, twa_pci_tbl); diff --git a/drivers/scsi/3w-9xxx.h b/drivers/scsi/3w-9xxx.h index 8c8ecbed3b58..46f22cdc8298 100644 --- a/drivers/scsi/3w-9xxx.h +++ b/drivers/scsi/3w-9xxx.h @@ -267,7 +267,6 @@ static twa_message_type twa_error_table[] = { #define TW_CONTROL_CLEAR_PARITY_ERROR 0x00800000 #define TW_CONTROL_CLEAR_QUEUE_ERROR 0x00400000 #define TW_CONTROL_CLEAR_PCI_ABORT 0x00100000 -#define TW_CONTROL_CLEAR_SBUF_WRITE_ERROR 0x00000008 /* Status register bit definitions */ #define TW_STATUS_MAJOR_VERSION_MASK 0xF0000000 @@ -285,9 +284,8 @@ static twa_message_type twa_error_table[] = { #define TW_STATUS_MICROCONTROLLER_READY 0x00002000 #define TW_STATUS_COMMAND_QUEUE_EMPTY 0x00001000 #define TW_STATUS_EXPECTED_BITS 0x00002000 -#define TW_STATUS_UNEXPECTED_BITS 0x00F00008 -#define TW_STATUS_SBUF_WRITE_ERROR 0x00000008 -#define TW_STATUS_VALID_INTERRUPT 0x00DF0008 +#define TW_STATUS_UNEXPECTED_BITS 0x00F00000 +#define TW_STATUS_VALID_INTERRUPT 0x00DF0000 /* RESPONSE QUEUE BIT DEFINITIONS */ #define TW_RESPONSE_ID_MASK 0x00000FF0 @@ -324,9 +322,9 @@ static twa_message_type twa_error_table[] = { /* Compatibility defines */ #define TW_9000_ARCH_ID 0x5 -#define TW_CURRENT_DRIVER_SRL 28 -#define TW_CURRENT_DRIVER_BUILD 9 -#define TW_CURRENT_DRIVER_BRANCH 4 +#define TW_CURRENT_DRIVER_SRL 30 +#define TW_CURRENT_DRIVER_BUILD 80 +#define TW_CURRENT_DRIVER_BRANCH 0 /* Phase defines */ #define TW_PHASE_INITIAL 0 @@ -334,6 +332,7 @@ static twa_message_type twa_error_table[] = { #define TW_PHASE_SGLIST 2 /* Misc defines */ +#define TW_9550SX_DRAIN_COMPLETED 0xFFFF #define TW_SECTOR_SIZE 512 #define TW_ALIGNMENT_9000 4 /* 4 bytes */ #define TW_ALIGNMENT_9000_SGL 0x3 @@ -417,6 +416,9 @@ static twa_message_type twa_error_table[] = { #ifndef PCI_DEVICE_ID_3WARE_9000 #define PCI_DEVICE_ID_3WARE_9000 0x1002 #endif +#ifndef PCI_DEVICE_ID_3WARE_9550SX +#define PCI_DEVICE_ID_3WARE_9550SX 0x1003 +#endif /* Bitmask macros to eliminate bitfields */ @@ -443,6 +445,7 @@ static twa_message_type twa_error_table[] = { #define TW_STATUS_REG_ADDR(x) ((unsigned char __iomem *)x->base_addr + 0x4) #define TW_COMMAND_QUEUE_REG_ADDR(x) (sizeof(dma_addr_t) > 4 ? ((unsigned char __iomem *)x->base_addr + 0x20) : ((unsigned char __iomem *)x->base_addr + 0x8)) #define TW_RESPONSE_QUEUE_REG_ADDR(x) ((unsigned char __iomem *)x->base_addr + 0xC) +#define TW_RESPONSE_QUEUE_REG_ADDR_LARGE(x) ((unsigned char __iomem *)x->base_addr + 0x30) #define TW_CLEAR_ALL_INTERRUPTS(x) (writel(TW_STATUS_VALID_INTERRUPT, TW_CONTROL_REG_ADDR(x))) #define TW_CLEAR_ATTENTION_INTERRUPT(x) (writel(TW_CONTROL_CLEAR_ATTENTION_INTERRUPT, TW_CONTROL_REG_ADDR(x))) #define TW_CLEAR_HOST_INTERRUPT(x) (writel(TW_CONTROL_CLEAR_HOST_INTERRUPT, TW_CONTROL_REG_ADDR(x))) From 6f3a20242db2597312c50abc11f1e747c5d2326a Mon Sep 17 00:00:00 2001 From: James Bottomley Date: Thu, 22 Sep 2005 20:33:28 -0500 Subject: [PATCH 123/352] [SCSI] allow REPORT LUN scanning even for LUN 0 PQ of 3 Currently we just ignore the device, which means there are a few arrays out there that we don't find. This patch updates the scsi_report_lun_scan() to take a target instead of a device so it can be called on a return of SCSI_SCAN_TARGET_PRESENT, which is what a PQ 3 device returns. Signed-off-by: James Bottomley --- drivers/scsi/scsi_scan.c | 96 +++++++++++++++++++------------------- include/scsi/scsi_device.h | 1 + 2 files changed, 48 insertions(+), 49 deletions(-) diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index fcf9f6cbb142..327c5d7e5bd2 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c @@ -587,6 +587,7 @@ static int scsi_probe_lun(struct scsi_device *sdev, char *inq_result, if (sdev->scsi_level >= 2 || (sdev->scsi_level == 1 && (inq_result[3] & 0x0f) == 1)) sdev->scsi_level++; + sdev->sdev_target->scsi_level = sdev->scsi_level; return 0; } @@ -771,6 +772,15 @@ static int scsi_add_lun(struct scsi_device *sdev, char *inq_result, int *bflags) return SCSI_SCAN_LUN_PRESENT; } +static inline void scsi_destroy_sdev(struct scsi_device *sdev) +{ + if (sdev->host->hostt->slave_destroy) + sdev->host->hostt->slave_destroy(sdev); + transport_destroy_device(&sdev->sdev_gendev); + put_device(&sdev->sdev_gendev); +} + + /** * scsi_probe_and_add_lun - probe a LUN, if a LUN is found add it * @starget: pointer to target device structure @@ -803,9 +813,9 @@ static int scsi_probe_and_add_lun(struct scsi_target *starget, * The rescan flag is used as an optimization, the first scan of a * host adapter calls into here with rescan == 0. */ - if (rescan) { - sdev = scsi_device_lookup_by_target(starget, lun); - if (sdev) { + sdev = scsi_device_lookup_by_target(starget, lun); + if (sdev) { + if (rescan || sdev->sdev_state != SDEV_CREATED) { SCSI_LOG_SCAN_BUS(3, printk(KERN_INFO "scsi scan: device exists on %s\n", sdev->sdev_gendev.bus_id)); @@ -820,9 +830,9 @@ static int scsi_probe_and_add_lun(struct scsi_target *starget, sdev->model); return SCSI_SCAN_LUN_PRESENT; } - } - - sdev = scsi_alloc_sdev(starget, lun, hostdata); + scsi_device_put(sdev); + } else + sdev = scsi_alloc_sdev(starget, lun, hostdata); if (!sdev) goto out; @@ -877,12 +887,8 @@ static int scsi_probe_and_add_lun(struct scsi_target *starget, res = SCSI_SCAN_NO_RESPONSE; } } - } else { - if (sdev->host->hostt->slave_destroy) - sdev->host->hostt->slave_destroy(sdev); - transport_destroy_device(&sdev->sdev_gendev); - put_device(&sdev->sdev_gendev); - } + } else + scsi_destroy_sdev(sdev); out: return res; } @@ -1054,7 +1060,7 @@ EXPORT_SYMBOL(int_to_scsilun); * 0: scan completed (or no memory, so further scanning is futile) * 1: no report lun scan, or not configured **/ -static int scsi_report_lun_scan(struct scsi_device *sdev, int bflags, +static int scsi_report_lun_scan(struct scsi_target *starget, int bflags, int rescan) { char devname[64]; @@ -1067,7 +1073,8 @@ static int scsi_report_lun_scan(struct scsi_device *sdev, int bflags, struct scsi_lun *lunp, *lun_data; u8 *data; struct scsi_sense_hdr sshdr; - struct scsi_target *starget = scsi_target(sdev); + struct scsi_device *sdev; + struct Scsi_Host *shost = dev_to_shost(&starget->dev); /* * Only support SCSI-3 and up devices if BLIST_NOREPORTLUN is not set. @@ -1075,15 +1082,23 @@ static int scsi_report_lun_scan(struct scsi_device *sdev, int bflags, * support more than 8 LUNs. */ if ((bflags & BLIST_NOREPORTLUN) || - sdev->scsi_level < SCSI_2 || - (sdev->scsi_level < SCSI_3 && - (!(bflags & BLIST_REPORTLUN2) || sdev->host->max_lun <= 8)) ) + starget->scsi_level < SCSI_2 || + (starget->scsi_level < SCSI_3 && + (!(bflags & BLIST_REPORTLUN2) || shost->max_lun <= 8)) ) return 1; if (bflags & BLIST_NOLUN) return 0; + if (!(sdev = scsi_device_lookup_by_target(starget, 0))) { + sdev = scsi_alloc_sdev(starget, 0, NULL); + if (!sdev) + return 0; + if (scsi_device_get(sdev)) + return 0; + } + sprintf(devname, "host %d channel %d id %d", - sdev->host->host_no, sdev->channel, sdev->id); + shost->host_no, sdev->channel, sdev->id); /* * Allocate enough to hold the header (the same size as one scsi_lun) @@ -1098,8 +1113,10 @@ static int scsi_report_lun_scan(struct scsi_device *sdev, int bflags, length = (max_scsi_report_luns + 1) * sizeof(struct scsi_lun); lun_data = kmalloc(length, GFP_ATOMIC | (sdev->host->unchecked_isa_dma ? __GFP_DMA : 0)); - if (!lun_data) + if (!lun_data) { + printk(ALLOC_FAILURE_MSG, __FUNCTION__); goto out; + } scsi_cmd[0] = REPORT_LUNS; @@ -1201,10 +1218,6 @@ static int scsi_report_lun_scan(struct scsi_device *sdev, int bflags, for (i = 0; i < sizeof(struct scsi_lun); i++) printk("%02x", data[i]); printk(" has a LUN larger than currently supported.\n"); - } else if (lun == 0) { - /* - * LUN 0 has already been scanned. - */ } else if (lun > sdev->host->max_lun) { printk(KERN_WARNING "scsi: %s lun%d has a LUN larger" " than allowed by the host adapter\n", @@ -1227,13 +1240,13 @@ static int scsi_report_lun_scan(struct scsi_device *sdev, int bflags, } kfree(lun_data); - return 0; - out: - /* - * We are out of memory, don't try scanning any further. - */ - printk(ALLOC_FAILURE_MSG, __FUNCTION__); + scsi_device_put(sdev); + if (sdev->sdev_state == SDEV_CREATED) + /* + * the sdev we used didn't appear in the report luns scan + */ + scsi_destroy_sdev(sdev); return 0; } @@ -1299,7 +1312,6 @@ static void __scsi_scan_target(struct device *parent, unsigned int channel, struct Scsi_Host *shost = dev_to_shost(parent); int bflags = 0; int res; - struct scsi_device *sdev = NULL; struct scsi_target *starget; if (shost->this_id == id) @@ -1325,27 +1337,16 @@ static void __scsi_scan_target(struct device *parent, unsigned int channel, * Scan LUN 0, if there is some response, scan further. Ideally, we * would not configure LUN 0 until all LUNs are scanned. */ - res = scsi_probe_and_add_lun(starget, 0, &bflags, &sdev, rescan, NULL); - if (res == SCSI_SCAN_LUN_PRESENT) { - if (scsi_report_lun_scan(sdev, bflags, rescan) != 0) + res = scsi_probe_and_add_lun(starget, 0, &bflags, NULL, rescan, NULL); + if (res == SCSI_SCAN_LUN_PRESENT || res == SCSI_SCAN_TARGET_PRESENT) { + if (scsi_report_lun_scan(starget, bflags, rescan) != 0) /* * The REPORT LUN did not scan the target, * do a sequential scan. */ scsi_sequential_lun_scan(starget, bflags, - res, sdev->scsi_level, rescan); - } else if (res == SCSI_SCAN_TARGET_PRESENT) { - /* - * There's a target here, but lun 0 is offline so we - * can't use the report_lun scan. Fall back to a - * sequential lun scan with a bflags of SPARSELUN and - * a default scsi level of SCSI_2 - */ - scsi_sequential_lun_scan(starget, BLIST_SPARSELUN, - SCSI_SCAN_TARGET_PRESENT, SCSI_2, rescan); + res, starget->scsi_level, rescan); } - if (sdev) - scsi_device_put(sdev); out_reap: /* now determine if the target has any children at all @@ -1542,10 +1543,7 @@ void scsi_free_host_dev(struct scsi_device *sdev) { BUG_ON(sdev->id != sdev->host->this_id); - if (sdev->host->hostt->slave_destroy) - sdev->host->hostt->slave_destroy(sdev); - transport_destroy_device(&sdev->sdev_gendev); - put_device(&sdev->sdev_gendev); + scsi_destroy_sdev(sdev); } EXPORT_SYMBOL(scsi_free_host_dev); diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index c0e4c67d836f..7ece05666feb 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -163,6 +163,7 @@ struct scsi_target { unsigned int id; /* target id ... replace * scsi_device.id eventually */ unsigned long create:1; /* signal that it needs to be added */ + char scsi_level; void *hostdata; /* available to low-level driver */ unsigned long starget_data[0]; /* for the transport */ /* starget_data must be the last element!!!! */ From 44550322cb601ac3f882e7438bbeec971fa1b1a3 Mon Sep 17 00:00:00 2001 From: Andrew Vasquez Date: Tue, 20 Sep 2005 13:32:11 -0700 Subject: [PATCH 124/352] [SCSI] qla2xxx: fix remote port timeout with qla2xxx driver This patch fixes a hole in the rport unblock handling when processing fabric events via the ADISC/PLOGI device state machine. Original code would not properly 'unblock' the port upon the port reloging into the fabric. Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_rscn.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/scsi/qla2xxx/qla_rscn.c b/drivers/scsi/qla2xxx/qla_rscn.c index bdc3bc74bbe1..1eba98828636 100644 --- a/drivers/scsi/qla2xxx/qla_rscn.c +++ b/drivers/scsi/qla2xxx/qla_rscn.c @@ -330,6 +330,8 @@ qla2x00_update_login_fcport(scsi_qla_host_t *ha, struct mbx_entry *mbxstat, fcport->flags &= ~FCF_FAILOVER_NEEDED; fcport->iodesc_idx_sent = IODESC_INVALID_INDEX; atomic_set(&fcport->state, FCS_ONLINE); + if (fcport->rport) + fc_remote_port_unblock(fcport->rport); } From f04da5def8c460b1b52d3142da827ab01efa3a15 Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Sun, 25 Sep 2005 23:02:49 +0100 Subject: [PATCH 125/352] [ARM] 2933/1: S3C2410 - fix serial port warnings Patch from Ben Dooks Fix the following warnings produced from drivers/char/s3c2410.c. drivers/serial/s3c2410.c:757: warning: 'clk' may be used uninitialized drivers/serial/s3c2410.c:756: warning: 'clksrc' may be used uninitialized Signed-off-by: Ben Dooks Signed-off-by: Russell King --- drivers/serial/s3c2410.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/serial/s3c2410.c b/drivers/serial/s3c2410.c index c361c6fb0809..1195e6a0901a 100644 --- a/drivers/serial/s3c2410.c +++ b/drivers/serial/s3c2410.c @@ -753,8 +753,8 @@ static void s3c24xx_serial_set_termios(struct uart_port *port, { struct s3c2410_uartcfg *cfg = s3c24xx_port_to_cfg(port); struct s3c24xx_uart_port *ourport = to_ourport(port); - struct s3c24xx_uart_clksrc *clksrc; - struct clk *clk; + struct s3c24xx_uart_clksrc *clksrc = NULL; + struct clk *clk = NULL; unsigned long flags; unsigned int baud, quot; unsigned int ulcon; From 5b58745203f16ab83e50f4a015eea84c416d9279 Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Sun, 25 Sep 2005 23:04:48 +0100 Subject: [PATCH 126/352] [ARM] 2934/1: Anubis - fix VA offsets for CPLD registers Patch from Ben Dooks The VA addresses of the Anubis CPLD registers confoict with the addresses for the ISA space maps used by the rest of the s3c2410 architecture Signed-off-by: Ben Dooks Signed-off-by: Russell King --- include/asm-arm/arch-s3c2410/anubis-map.h | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/include/asm-arm/arch-s3c2410/anubis-map.h b/include/asm-arm/arch-s3c2410/anubis-map.h index 97741d6e506a..d529ffda8599 100644 --- a/include/asm-arm/arch-s3c2410/anubis-map.h +++ b/include/asm-arm/arch-s3c2410/anubis-map.h @@ -20,22 +20,22 @@ /* start peripherals off after the S3C2410 */ -#define ANUBIS_IOADDR(x) (S3C2410_ADDR((x) + 0x02000000)) +#define ANUBIS_IOADDR(x) (S3C2410_ADDR((x) + 0x01800000)) #define ANUBIS_PA_CPLD (S3C2410_CS1 | (1<<26)) /* we put the CPLD registers next, to get them out of the way */ -#define ANUBIS_VA_CTRL1 ANUBIS_IOADDR(0x00000000) /* 0x01300000 */ +#define ANUBIS_VA_CTRL1 ANUBIS_IOADDR(0x00000000) /* 0x01800000 */ #define ANUBIS_PA_CTRL1 (ANUBIS_PA_CPLD) -#define ANUBIS_VA_CTRL2 ANUBIS_IOADDR(0x00100000) /* 0x01400000 */ +#define ANUBIS_VA_CTRL2 ANUBIS_IOADDR(0x00100000) /* 0x01900000 */ #define ANUBIS_PA_CTRL2 (ANUBIS_PA_CPLD) -#define ANUBIS_VA_CTRL3 ANUBIS_IOADDR(0x00200000) /* 0x01500000 */ +#define ANUBIS_VA_CTRL3 ANUBIS_IOADDR(0x00200000) /* 0x01A00000 */ #define ANUBIS_PA_CTRL3 (ANUBIS_PA_CPLD) -#define ANUBIS_VA_CTRL4 ANUBIS_IOADDR(0x00300000) /* 0x01600000 */ +#define ANUBIS_VA_CTRL4 ANUBIS_IOADDR(0x00300000) /* 0x01B00000 */ #define ANUBIS_PA_CTRL4 (ANUBIS_PA_CPLD) #define ANUBIS_IDEPRI ANUBIS_IOADDR(0x01000000) From fe8b2304e54552cea113318e2f66c45628130fdc Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sun, 25 Sep 2005 23:10:33 +0200 Subject: [PATCH 127/352] [SCSI] sas: fix remote phy removal Brown paperbag bug: sas_rphy_delete was ordered completely wrong. Fix it up to be the same order as sas_phy_delete or fc_rport_terminate and fix rphy objects that leaked after module removal. Signed-off-by: Christoph Hellwig Signed-off-by: James Bottomley --- drivers/scsi/scsi_transport_sas.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/scsi_transport_sas.c b/drivers/scsi/scsi_transport_sas.c index ff724bbe6611..1d145d2f9a38 100644 --- a/drivers/scsi/scsi_transport_sas.c +++ b/drivers/scsi/scsi_transport_sas.c @@ -628,17 +628,16 @@ sas_rphy_delete(struct sas_rphy *rphy) struct Scsi_Host *shost = dev_to_shost(parent->dev.parent); struct sas_host_attrs *sas_host = to_sas_host_attrs(shost); - transport_destroy_device(&rphy->dev); + scsi_remove_target(dev); - scsi_remove_target(&rphy->dev); + transport_remove_device(dev); + device_del(dev); + transport_destroy_device(dev); spin_lock(&sas_host->lock); list_del(&rphy->list); spin_unlock(&sas_host->lock); - transport_remove_device(dev); - device_del(dev); - transport_destroy_device(dev); put_device(&parent->dev); } EXPORT_SYMBOL(sas_rphy_delete); From 56425306517ef28a9b480161cdb96d182172bc1d Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sun, 25 Sep 2005 16:46:57 -0700 Subject: [PATCH 128/352] [SPARC64]: Add CONFIG_DEBUG_PAGEALLOC support. The trick is that we do the kernel linear mapping TLB miss starting with an instruction sequence like this: ba,pt %xcc, kvmap_load xor %g2, %g4, %g5 succeeded by an instruction sequence which performs a full page table walk starting at swapper_pg_dir. We first take over the trap table from the firmware. Then, using this constant PTE generation for the linear mapping area above, we build the kernel page tables for the linear mapping. After this is setup, we patch that branch above into a "nop", which will cause TLB misses to fall through to the full page table walk. With this, the page unmapping for CONFIG_DEBUG_PAGEALLOC is trivial. Signed-off-by: David S. Miller --- arch/sparc64/Kconfig.debug | 8 +++ arch/sparc64/kernel/head.S | 6 -- arch/sparc64/kernel/ktlb.S | 33 ++++++++- arch/sparc64/kernel/vmlinux.lds.S | 3 +- arch/sparc64/mm/init.c | 109 +++++++++++++++++++++++++++++- include/asm-sparc64/cacheflush.h | 5 ++ include/asm-sparc64/pgtable.h | 7 +- 7 files changed, 156 insertions(+), 15 deletions(-) diff --git a/arch/sparc64/Kconfig.debug b/arch/sparc64/Kconfig.debug index af0e9411b83e..fa06ea04837b 100644 --- a/arch/sparc64/Kconfig.debug +++ b/arch/sparc64/Kconfig.debug @@ -33,6 +33,14 @@ config DEBUG_BOOTMEM depends on DEBUG_KERNEL bool "Debug BOOTMEM initialization" +config DEBUG_PAGEALLOC + bool "Page alloc debugging" + depends on DEBUG_KERNEL && !SOFTWARE_SUSPEND + help + Unmap pages from the kernel linear mapping after free_pages(). + This results in a large slowdown, but helps to find certain types + of memory corruptions. + config MCOUNT bool depends on STACK_DEBUG diff --git a/arch/sparc64/kernel/head.S b/arch/sparc64/kernel/head.S index 56af714f5f1b..ecc748fb9ad7 100644 --- a/arch/sparc64/kernel/head.S +++ b/arch/sparc64/kernel/head.S @@ -525,12 +525,6 @@ bootup_user_stack_end: #include "ttable.S" #include "systbls.S" - - .align 1024 - .globl swapper_pg_dir -swapper_pg_dir: - .word 0 - #include "ktlb.S" #include "etrap.S" #include "rtrap.S" diff --git a/arch/sparc64/kernel/ktlb.S b/arch/sparc64/kernel/ktlb.S index a591bc0ebc7b..7796b37f478c 100644 --- a/arch/sparc64/kernel/ktlb.S +++ b/arch/sparc64/kernel/ktlb.S @@ -132,9 +132,40 @@ kvmap_do_obp: */ .align 32 kvmap: - brlz,pt %g4, kvmap_load + brgez,pn %g4, kvmap_nonlinear + nop + +#ifdef CONFIG_DEBUG_PAGEALLOC + .globl kvmap_linear_patch +kvmap_linear_patch: +#endif + ba,pt %xcc, kvmap_load xor %g2, %g4, %g5 +#ifdef CONFIG_DEBUG_PAGEALLOC + sethi %hi(swapper_pg_dir), %g5 + or %g5, %lo(swapper_pg_dir), %g5 + sllx %g4, 64 - (PGDIR_SHIFT + PGDIR_BITS), %g6 + srlx %g6, 64 - PAGE_SHIFT, %g6 + andn %g6, 0x3, %g6 + lduw [%g5 + %g6], %g5 + brz,pn %g5, longpath + sllx %g4, 64 - (PMD_SHIFT + PMD_BITS), %g6 + srlx %g6, 64 - PAGE_SHIFT, %g6 + sllx %g5, 11, %g5 + andn %g6, 0x3, %g6 + lduwa [%g5 + %g6] ASI_PHYS_USE_EC, %g5 + brz,pn %g5, longpath + sllx %g4, 64 - PMD_SHIFT, %g6 + srlx %g6, 64 - PAGE_SHIFT, %g6 + sllx %g5, 11, %g5 + andn %g6, 0x7, %g6 + ldxa [%g5 + %g6] ASI_PHYS_USE_EC, %g5 + brz,pn %g5, longpath + nop + ba,a,pt %xcc, kvmap_load +#endif + kvmap_nonlinear: sethi %hi(MODULES_VADDR), %g5 cmp %g4, %g5 diff --git a/arch/sparc64/kernel/vmlinux.lds.S b/arch/sparc64/kernel/vmlinux.lds.S index f47d0be39378..2af0cf0a8640 100644 --- a/arch/sparc64/kernel/vmlinux.lds.S +++ b/arch/sparc64/kernel/vmlinux.lds.S @@ -9,8 +9,7 @@ ENTRY(_start) jiffies = jiffies_64; SECTIONS { - swapper_pmd_dir = 0x0000000000402000; - empty_pg_dir = 0x0000000000403000; + swapper_low_pmd_dir = 0x0000000000402000; . = 0x4000; .text 0x0000000000404000 : { diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c index cf747372f0c9..8d72f8a1268e 100644 --- a/arch/sparc64/mm/init.c +++ b/arch/sparc64/mm/init.c @@ -1332,15 +1332,114 @@ unsigned long __init bootmem_init(unsigned long *pages_avail) return end_pfn; } +#ifdef CONFIG_DEBUG_PAGEALLOC +static unsigned long kernel_map_range(unsigned long pstart, unsigned long pend, pgprot_t prot) +{ + unsigned long vstart = PAGE_OFFSET + pstart; + unsigned long vend = PAGE_OFFSET + pend; + unsigned long alloc_bytes = 0UL; + + if ((vstart & ~PAGE_MASK) || (vend & ~PAGE_MASK)) { + prom_printf("kernel_map: Unaligned sp_banks[%lx:%lx]\n", + vstart, vend); + prom_halt(); + } + + while (vstart < vend) { + unsigned long this_end, paddr = __pa(vstart); + pgd_t *pgd = pgd_offset_k(vstart); + pud_t *pud; + pmd_t *pmd; + pte_t *pte; + + pud = pud_offset(pgd, vstart); + if (pud_none(*pud)) { + pmd_t *new; + + new = __alloc_bootmem(PAGE_SIZE, PAGE_SIZE, PAGE_SIZE); + alloc_bytes += PAGE_SIZE; + pud_populate(&init_mm, pud, new); + } + + pmd = pmd_offset(pud, vstart); + if (!pmd_present(*pmd)) { + pte_t *new; + + new = __alloc_bootmem(PAGE_SIZE, PAGE_SIZE, PAGE_SIZE); + alloc_bytes += PAGE_SIZE; + pmd_populate_kernel(&init_mm, pmd, new); + } + + pte = pte_offset_kernel(pmd, vstart); + this_end = (vstart + PMD_SIZE) & PMD_MASK; + if (this_end > vend) + this_end = vend; + + while (vstart < this_end) { + pte_val(*pte) = (paddr | pgprot_val(prot)); + + vstart += PAGE_SIZE; + paddr += PAGE_SIZE; + pte++; + } + } + + return alloc_bytes; +} + +extern struct linux_mlist_p1275 *prom_ptot_ptr; +extern unsigned int kvmap_linear_patch[1]; + +static void __init kernel_physical_mapping_init(void) +{ + struct linux_mlist_p1275 *p = prom_ptot_ptr; + unsigned long mem_alloced = 0UL; + + while (p) { + unsigned long phys_start, phys_end; + + phys_start = p->start_adr; + phys_end = phys_start + p->num_bytes; + mem_alloced += kernel_map_range(phys_start, phys_end, + PAGE_KERNEL); + + p = p->theres_more; + } + + printk("Allocated %ld bytes for kernel page tables.\n", + mem_alloced); + + kvmap_linear_patch[0] = 0x01000000; /* nop */ + flushi(&kvmap_linear_patch[0]); + + __flush_tlb_all(); +} + +void kernel_map_pages(struct page *page, int numpages, int enable) +{ + unsigned long phys_start = page_to_pfn(page) << PAGE_SHIFT; + unsigned long phys_end = phys_start + (numpages * PAGE_SIZE); + + kernel_map_range(phys_start, phys_end, + (enable ? PAGE_KERNEL : __pgprot(0))); + + /* we should perform an IPI and flush all tlbs, + * but that can deadlock->flush only current cpu. + */ + __flush_tlb_kernel_range(PAGE_OFFSET + phys_start, + PAGE_OFFSET + phys_end); +} +#endif + /* paging_init() sets up the page tables */ extern void cheetah_ecache_flush_init(void); static unsigned long last_valid_pfn; +pgd_t swapper_pg_dir[2048]; void __init paging_init(void) { - extern pmd_t swapper_pmd_dir[1024]; unsigned long end_pfn, pages_avail, shift; unsigned long real_end; @@ -1361,11 +1460,11 @@ void __init paging_init(void) */ init_mm.pgd += ((shift) / (sizeof(pgd_t))); - memset(swapper_pmd_dir, 0, sizeof(swapper_pmd_dir)); + memset(swapper_low_pmd_dir, 0, sizeof(swapper_low_pmd_dir)); /* Now can init the kernel/bad page tables. */ pud_set(pud_offset(&swapper_pg_dir[0], 0), - swapper_pmd_dir + (shift / sizeof(pgd_t))); + swapper_low_pmd_dir + (shift / sizeof(pgd_t))); swapper_pgd_zero = pgd_val(swapper_pg_dir[0]); @@ -1390,6 +1489,10 @@ void __init paging_init(void) pages_avail = 0; last_valid_pfn = end_pfn = bootmem_init(&pages_avail); +#ifdef CONFIG_DEBUG_PAGEALLOC + kernel_physical_mapping_init(); +#endif + { unsigned long zones_size[MAX_NR_ZONES]; unsigned long zholes_size[MAX_NR_ZONES]; diff --git a/include/asm-sparc64/cacheflush.h b/include/asm-sparc64/cacheflush.h index ededd2659eab..b3f61659ba81 100644 --- a/include/asm-sparc64/cacheflush.h +++ b/include/asm-sparc64/cacheflush.h @@ -66,6 +66,11 @@ extern void flush_ptrace_access(struct vm_area_struct *, struct page *, #define flush_cache_vmap(start, end) do { } while (0) #define flush_cache_vunmap(start, end) do { } while (0) +#ifdef CONFIG_DEBUG_PAGEALLOC +/* internal debugging function */ +void kernel_map_pages(struct page *page, int numpages, int enable); +#endif + #endif /* !__ASSEMBLY__ */ #endif /* _SPARC64_CACHEFLUSH_H */ diff --git a/include/asm-sparc64/pgtable.h b/include/asm-sparc64/pgtable.h index a297f6144f0f..43cbb089cde2 100644 --- a/include/asm-sparc64/pgtable.h +++ b/include/asm-sparc64/pgtable.h @@ -60,13 +60,13 @@ * table can map */ #define PMD_SHIFT (PAGE_SHIFT + (PAGE_SHIFT-3)) -#define PMD_SIZE (1UL << PMD_SHIFT) +#define PMD_SIZE (_AC(1,UL) << PMD_SHIFT) #define PMD_MASK (~(PMD_SIZE-1)) #define PMD_BITS (PAGE_SHIFT - 2) /* PGDIR_SHIFT determines what a third-level page table entry can map */ #define PGDIR_SHIFT (PAGE_SHIFT + (PAGE_SHIFT-3) + PMD_BITS) -#define PGDIR_SIZE (1UL << PGDIR_SHIFT) +#define PGDIR_SIZE (_AC(1,UL) << PGDIR_SHIFT) #define PGDIR_MASK (~(PGDIR_SIZE-1)) #define PGDIR_BITS (PAGE_SHIFT - 2) @@ -336,7 +336,8 @@ static inline void set_pte_at(struct mm_struct *mm, unsigned long addr, pte_t *p #define pte_clear(mm,addr,ptep) \ set_pte_at((mm), (addr), (ptep), __pte(0UL)) -extern pgd_t swapper_pg_dir[1]; +extern pgd_t swapper_pg_dir[2048]; +extern pmd_t swapper_low_pmd_dir[2048]; /* These do nothing with the way I have things setup. */ #define mmu_lockarea(vaddr, len) (vaddr) From 80dc0d6b44ce0f01df58d8899e46612690ed7d81 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Mon, 26 Sep 2005 00:32:17 -0700 Subject: [PATCH 129/352] [SPARC64]: Probe D/I/E-cache config and use. At boot time, determine the D-cache, I-cache and E-cache size and line-size. Use them in cache flushes when appropriate. This change was motivated by discovering that the D-cache on UltraSparc-IIIi and later are 64K not 32K, and the flushes done by the Cheetah error handlers were assuming a 32K size. There are still some pieces of code that are hard coding things and will need to be fixed up at some point. While we're here, fix the D-cache and I-cache parity error handlers to run with interrupts disabled, and when the trap occurs at trap level > 1 log the event via a counter displayed in /proc/cpuinfo. Signed-off-by: David S. Miller --- arch/sparc64/kernel/devices.c | 22 +++++++++++++++++++ arch/sparc64/kernel/entry.S | 27 +++++++++++++++-------- arch/sparc64/kernel/setup.c | 9 +++++++- arch/sparc64/kernel/smp.c | 21 ++++++++++++++++++ arch/sparc64/kernel/traps.c | 40 +++++++++++++++++++++++------------ include/asm-sparc64/cpudata.h | 10 +++++++++ 6 files changed, 106 insertions(+), 23 deletions(-) diff --git a/arch/sparc64/kernel/devices.c b/arch/sparc64/kernel/devices.c index d710274e516b..df9a1ca8fd77 100644 --- a/arch/sparc64/kernel/devices.c +++ b/arch/sparc64/kernel/devices.c @@ -135,6 +135,28 @@ void __init device_scan(void) cpu_data(0).clock_tick = prom_getintdefault(cpu_node, "clock-frequency", 0); + cpu_data(0).dcache_size = prom_getintdefault(cpu_node, + "dcache-size", + 16 * 1024); + cpu_data(0).dcache_line_size = + prom_getintdefault(cpu_node, "dcache-line-size", 32); + cpu_data(0).icache_size = prom_getintdefault(cpu_node, + "icache-size", + 16 * 1024); + cpu_data(0).icache_line_size = + prom_getintdefault(cpu_node, "icache-line-size", 32); + cpu_data(0).ecache_size = prom_getintdefault(cpu_node, + "ecache-size", + 4 * 1024 * 1024); + cpu_data(0).ecache_line_size = + prom_getintdefault(cpu_node, "ecache-line-size", 64); + printk("CPU[0]: Caches " + "D[sz(%d):line_sz(%d)] " + "I[sz(%d):line_sz(%d)] " + "E[sz(%d):line_sz(%d)]\n", + cpu_data(0).dcache_size, cpu_data(0).dcache_line_size, + cpu_data(0).icache_size, cpu_data(0).icache_line_size, + cpu_data(0).ecache_size, cpu_data(0).ecache_line_size); } #endif diff --git a/arch/sparc64/kernel/entry.S b/arch/sparc64/kernel/entry.S index 45cd3bbdb7e0..2879b1072921 100644 --- a/arch/sparc64/kernel/entry.S +++ b/arch/sparc64/kernel/entry.S @@ -372,14 +372,13 @@ cheetah_plus_patch_fpdis: * * DATA 0: [low 32-bits] Address of function to call, jmp to this * [high 32-bits] MMU Context Argument 0, place in %g5 - * DATA 1: Address Argument 1, place in %g6 + * DATA 1: Address Argument 1, place in %g1 * DATA 2: Address Argument 2, place in %g7 * * With this method we can do most of the cross-call tlb/cache * flushing very quickly. * - * Current CPU's IRQ worklist table is locked into %g1, - * don't touch. + * Current CPU's IRQ worklist table is locked into %g6, don't touch. */ .text .align 32 @@ -853,13 +852,14 @@ cheetah_plus_dcpe_trap_vector: nop do_cheetah_plus_data_parity: - ba,pt %xcc, etrap + rdpr %pil, %g2 + wrpr %g0, 15, %pil + ba,pt %xcc, etrap_irq rd %pc, %g7 mov 0x0, %o0 call cheetah_plus_parity_error add %sp, PTREGS_OFF, %o1 - ba,pt %xcc, rtrap - clr %l6 + ba,a,pt %xcc, rtrap_irq cheetah_plus_dcpe_trap_vector_tl1: membar #Sync @@ -883,13 +883,14 @@ cheetah_plus_icpe_trap_vector: nop do_cheetah_plus_insn_parity: - ba,pt %xcc, etrap + rdpr %pil, %g2 + wrpr %g0, 15, %pil + ba,pt %xcc, etrap_irq rd %pc, %g7 mov 0x1, %o0 call cheetah_plus_parity_error add %sp, PTREGS_OFF, %o1 - ba,pt %xcc, rtrap - clr %l6 + ba,a,pt %xcc, rtrap_irq cheetah_plus_icpe_trap_vector_tl1: membar #Sync @@ -922,6 +923,10 @@ do_dcpe_tl1: nop wrpr %g1, %tl ! Restore original trap level do_dcpe_tl1_nonfatal: /* Ok we may use interrupt globals safely. */ + sethi %hi(dcache_parity_tl1_occurred), %g2 + lduw [%g2 + %lo(dcache_parity_tl1_occurred)], %g1 + add %g1, 1, %g1 + stw %g1, [%g2 + %lo(dcache_parity_tl1_occurred)] /* Reset D-cache parity */ sethi %hi(1 << 16), %g1 ! D-cache size mov (1 << 5), %g2 ! D-cache line size @@ -968,6 +973,10 @@ do_icpe_tl1: nop wrpr %g1, %tl ! Restore original trap level do_icpe_tl1_nonfatal: /* Ok we may use interrupt globals safely. */ + sethi %hi(icache_parity_tl1_occurred), %g2 + lduw [%g2 + %lo(icache_parity_tl1_occurred)], %g1 + add %g1, 1, %g1 + stw %g1, [%g2 + %lo(icache_parity_tl1_occurred)] /* Flush I-cache */ sethi %hi(1 << 15), %g1 ! I-cache size mov (1 << 5), %g2 ! I-cache line size diff --git a/arch/sparc64/kernel/setup.c b/arch/sparc64/kernel/setup.c index f4345d837284..8e8baf2354df 100644 --- a/arch/sparc64/kernel/setup.c +++ b/arch/sparc64/kernel/setup.c @@ -605,6 +605,9 @@ extern void smp_info(struct seq_file *); extern void smp_bogo(struct seq_file *); extern void mmu_info(struct seq_file *); +unsigned int dcache_parity_tl1_occurred; +unsigned int icache_parity_tl1_occurred; + static int show_cpuinfo(struct seq_file *m, void *__unused) { seq_printf(m, @@ -615,6 +618,8 @@ static int show_cpuinfo(struct seq_file *m, void *__unused) "type\t\t: sun4u\n" "ncpus probed\t: %ld\n" "ncpus active\t: %ld\n" + "D$ parity tl1\t: %u\n" + "I$ parity tl1\t: %u\n" #ifndef CONFIG_SMP "Cpu0Bogo\t: %lu.%02lu\n" "Cpu0ClkTck\t: %016lx\n" @@ -627,7 +632,9 @@ static int show_cpuinfo(struct seq_file *m, void *__unused) (prom_prev >> 8) & 0xff, prom_prev & 0xff, (long)num_possible_cpus(), - (long)num_online_cpus() + (long)num_online_cpus(), + dcache_parity_tl1_occurred, + icache_parity_tl1_occurred #ifndef CONFIG_SMP , cpu_data(0).udelay_val/(500000/HZ), (cpu_data(0).udelay_val/(5000/HZ)) % 100, diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c index b4fc6a5462b2..590df5a16f5a 100644 --- a/arch/sparc64/kernel/smp.c +++ b/arch/sparc64/kernel/smp.c @@ -93,6 +93,27 @@ void __init smp_store_cpu_info(int id) cpu_data(id).pte_cache[1] = NULL; cpu_data(id).pgd_cache = NULL; cpu_data(id).idle_volume = 1; + + cpu_data(id).dcache_size = prom_getintdefault(cpu_node, "dcache-size", + 16 * 1024); + cpu_data(id).dcache_line_size = + prom_getintdefault(cpu_node, "dcache-line-size", 32); + cpu_data(id).icache_size = prom_getintdefault(cpu_node, "icache-size", + 16 * 1024); + cpu_data(id).icache_line_size = + prom_getintdefault(cpu_node, "icache-line-size", 32); + cpu_data(id).ecache_size = prom_getintdefault(cpu_node, "ecache-size", + 4 * 1024 * 1024); + cpu_data(id).ecache_line_size = + prom_getintdefault(cpu_node, "ecache-line-size", 64); + printk("CPU[%d]: Caches " + "D[sz(%d):line_sz(%d)] " + "I[sz(%d):line_sz(%d)] " + "E[sz(%d):line_sz(%d)]\n", + id, + cpu_data(id).dcache_size, cpu_data(id).dcache_line_size, + cpu_data(id).icache_size, cpu_data(id).icache_line_size, + cpu_data(id).ecache_size, cpu_data(id).ecache_line_size); } static void smp_setup_percpu_timer(void); diff --git a/arch/sparc64/kernel/traps.c b/arch/sparc64/kernel/traps.c index b280b2ef674f..f8e7005fede9 100644 --- a/arch/sparc64/kernel/traps.c +++ b/arch/sparc64/kernel/traps.c @@ -869,14 +869,19 @@ static void cheetah_flush_ecache_line(unsigned long physaddr) */ static void __cheetah_flush_icache(void) { - unsigned long i; + unsigned int icache_size, icache_line_size; + unsigned long addr; + + icache_size = local_cpu_data().icache_size; + icache_line_size = local_cpu_data().icache_line_size; /* Clear the valid bits in all the tags. */ - for (i = 0; i < (1 << 15); i += (1 << 5)) { + for (addr = 0; addr < icache_size; addr += icache_line_size) { __asm__ __volatile__("stxa %%g0, [%0] %1\n\t" "membar #Sync" : /* no outputs */ - : "r" (i | (2 << 3)), "i" (ASI_IC_TAG)); + : "r" (addr | (2 << 3)), + "i" (ASI_IC_TAG)); } } @@ -904,13 +909,17 @@ static void cheetah_flush_icache(void) static void cheetah_flush_dcache(void) { - unsigned long i; + unsigned int dcache_size, dcache_line_size; + unsigned long addr; - for (i = 0; i < (1 << 16); i += (1 << 5)) { + dcache_size = local_cpu_data().dcache_size; + dcache_line_size = local_cpu_data().dcache_line_size; + + for (addr = 0; addr < dcache_size; addr += dcache_line_size) { __asm__ __volatile__("stxa %%g0, [%0] %1\n\t" "membar #Sync" : /* no outputs */ - : "r" (i), "i" (ASI_DCACHE_TAG)); + : "r" (addr), "i" (ASI_DCACHE_TAG)); } } @@ -921,24 +930,29 @@ static void cheetah_flush_dcache(void) */ static void cheetah_plus_zap_dcache_parity(void) { - unsigned long i; + unsigned int dcache_size, dcache_line_size; + unsigned long addr; - for (i = 0; i < (1 << 16); i += (1 << 5)) { - unsigned long tag = (i >> 14); - unsigned long j; + dcache_size = local_cpu_data().dcache_size; + dcache_line_size = local_cpu_data().dcache_line_size; + + for (addr = 0; addr < dcache_size; addr += dcache_line_size) { + unsigned long tag = (addr >> 14); + unsigned long line; __asm__ __volatile__("membar #Sync\n\t" "stxa %0, [%1] %2\n\t" "membar #Sync" : /* no outputs */ - : "r" (tag), "r" (i), + : "r" (tag), "r" (addr), "i" (ASI_DCACHE_UTAG)); - for (j = i; j < i + (1 << 5); j += (1 << 3)) + for (line = addr; line < addr + dcache_line_size; line += 8) __asm__ __volatile__("membar #Sync\n\t" "stxa %%g0, [%0] %1\n\t" "membar #Sync" : /* no outputs */ - : "r" (j), "i" (ASI_DCACHE_DATA)); + : "r" (line), + "i" (ASI_DCACHE_DATA)); } } diff --git a/include/asm-sparc64/cpudata.h b/include/asm-sparc64/cpudata.h index 9a3a81f1cc58..74de79dca915 100644 --- a/include/asm-sparc64/cpudata.h +++ b/include/asm-sparc64/cpudata.h @@ -22,6 +22,16 @@ typedef struct { unsigned int __pad1; unsigned long *pte_cache[2]; unsigned long *pgd_cache; + + /* Dcache line 3, rarely used */ + unsigned int dcache_size; + unsigned int dcache_line_size; + unsigned int icache_size; + unsigned int icache_line_size; + unsigned int ecache_size; + unsigned int ecache_line_size; + unsigned int __pad2; + unsigned int __pad3; } cpuinfo_sparc; DECLARE_PER_CPU(cpuinfo_sparc, __cpu_data); From 838bf9675a3d1ede01408aa105357b9ab43faf1b Mon Sep 17 00:00:00 2001 From: Anton Altaparmakov Date: Mon, 26 Sep 2005 10:45:46 +0100 Subject: [PATCH 130/352] NTFS: Fix the definition of the CHKD ntfs record magic. It had an off by two error causing it to be CHKB instead of CHKD. Signed-off-by: Anton Altaparmakov --- fs/ntfs/layout.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ntfs/layout.h b/fs/ntfs/layout.h index dbf5c2a06dab..d5491de6abf4 100644 --- a/fs/ntfs/layout.h +++ b/fs/ntfs/layout.h @@ -123,7 +123,7 @@ enum { magic_RCRD = const_cpu_to_le32(0x44524352), /* Log record page. */ /* Found in $LogFile/$DATA. (May be found in $MFT/$DATA, also?) */ - magic_CHKD = const_cpu_to_le32(0x424b4843), /* Modified by chkdsk. */ + magic_CHKD = const_cpu_to_le32(0x444b4843), /* Modified by chkdsk. */ /* Found in all ntfs record containing records. */ magic_BAAD = const_cpu_to_le32(0x44414142), /* Failed multi sector From 5a8c0cc32bb6e029cd9c36f655c6b0955b0d9967 Mon Sep 17 00:00:00 2001 From: Anton Altaparmakov Date: Mon, 26 Sep 2005 10:48:54 +0100 Subject: [PATCH 131/352] NTFS: More $LogFile handling fixes: when chkdsk has been run, it can leave the restart pages in the journal without multi sector transfer protection fixups (i.e. the update sequence array is empty and in fact does not exist). Signed-off-by: Anton Altaparmakov --- fs/ntfs/ChangeLog | 18 +++++++++--------- fs/ntfs/Makefile | 2 +- fs/ntfs/logfile.c | 30 +++++++++++++++++++++++++----- 3 files changed, 35 insertions(+), 15 deletions(-) diff --git a/fs/ntfs/ChangeLog b/fs/ntfs/ChangeLog index 574896f27c36..83f3322765cd 100644 --- a/fs/ntfs/ChangeLog +++ b/fs/ntfs/ChangeLog @@ -22,14 +22,6 @@ ToDo/Notes: - Enable the code for setting the NT4 compatibility flag when we start making NTFS 1.2 specific modifications. -2.1.25-WIP - - - Fix sparse warnings that have crept in over time. - - Change ntfs_cluster_free() to require a write locked runlist on entry - since we otherwise get into a lock reversal deadlock if a read locked - runlist is passed in. In the process also change it to take an ntfs - inode instead of a vfs inode as parameter. - 2.1.24 - Lots of bug fixes and support more clean journal states. - Support journals ($LogFile) which have been modified by chkdsk. This @@ -37,7 +29,8 @@ ToDo/Notes: The Windows boot will run chkdsk and then reboot. The user can then immediately boot into Linux rather than having to do a full Windows boot first before rebooting into Linux and we will recognize such a - journal and empty it as it is clean by definition. + journal and empty it as it is clean by definition. Note, this only + works if chkdsk left the journal in an obviously clean state. - Support journals ($LogFile) with only one restart page as well as journals with two different restart pages. We sanity check both and either use the only sane one or the more recent one of the two in the @@ -102,6 +95,13 @@ ToDo/Notes: my ways. - Fix various bugs in the runlist merging code. (Based on libntfs changes by Richard Russon.) + - Fix sparse warnings that have crept in over time. + - Change ntfs_cluster_free() to require a write locked runlist on entry + since we otherwise get into a lock reversal deadlock if a read locked + runlist is passed in. In the process also change it to take an ntfs + inode instead of a vfs inode as parameter. + - Fix the definition of the CHKD ntfs record magic. It had an off by + two error causing it to be CHKB instead of CHKD. 2.1.23 - Implement extension of resident files and make writing safe as well as many bug fixes, cleanups, and enhancements... diff --git a/fs/ntfs/Makefile b/fs/ntfs/Makefile index a3ce2c0e7dd9..894b2b876d35 100644 --- a/fs/ntfs/Makefile +++ b/fs/ntfs/Makefile @@ -6,7 +6,7 @@ ntfs-objs := aops.o attrib.o collate.o compress.o debug.o dir.o file.o \ index.o inode.o mft.o mst.o namei.o runlist.o super.o sysctl.o \ unistr.o upcase.o -EXTRA_CFLAGS = -DNTFS_VERSION=\"2.1.25-WIP\" +EXTRA_CFLAGS = -DNTFS_VERSION=\"2.1.24\" ifeq ($(CONFIG_NTFS_DEBUG),y) EXTRA_CFLAGS += -DDEBUG diff --git a/fs/ntfs/logfile.c b/fs/ntfs/logfile.c index 0173e95500d9..0fd70295cca6 100644 --- a/fs/ntfs/logfile.c +++ b/fs/ntfs/logfile.c @@ -51,7 +51,8 @@ static BOOL ntfs_check_restart_page_header(struct inode *vi, RESTART_PAGE_HEADER *rp, s64 pos) { u32 logfile_system_page_size, logfile_log_page_size; - u16 usa_count, usa_ofs, usa_end, ra_ofs; + u16 ra_ofs, usa_count, usa_ofs, usa_end = 0; + BOOL have_usa = TRUE; ntfs_debug("Entering."); /* @@ -86,6 +87,14 @@ static BOOL ntfs_check_restart_page_header(struct inode *vi, (int)sle16_to_cpu(rp->minor_ver)); return FALSE; } + /* + * If chkdsk has been run the restart page may not be protected by an + * update sequence array. + */ + if (ntfs_is_chkd_record(rp->magic) && !le16_to_cpu(rp->usa_count)) { + have_usa = FALSE; + goto skip_usa_checks; + } /* Verify the size of the update sequence array. */ usa_count = 1 + (logfile_system_page_size >> NTFS_BLOCK_SIZE_BITS); if (usa_count != le16_to_cpu(rp->usa_count)) { @@ -102,6 +111,7 @@ static BOOL ntfs_check_restart_page_header(struct inode *vi, "inconsistent update sequence array offset."); return FALSE; } +skip_usa_checks: /* * Verify the position of the restart area. It must be: * - aligned to 8-byte boundary, @@ -109,7 +119,8 @@ static BOOL ntfs_check_restart_page_header(struct inode *vi, * - within the system page size. */ ra_ofs = le16_to_cpu(rp->restart_area_offset); - if (ra_ofs & 7 || ra_ofs < usa_end || + if (ra_ofs & 7 || (have_usa ? ra_ofs < usa_end : + ra_ofs < sizeof(RESTART_PAGE_HEADER)) || ra_ofs > logfile_system_page_size) { ntfs_error(vi->i_sb, "$LogFile restart page specifies " "inconsistent restart area offset."); @@ -402,8 +413,12 @@ static int ntfs_check_and_load_restart_page(struct inode *vi, idx++; } while (to_read > 0); } - /* Perform the multi sector transfer deprotection on the buffer. */ - if (post_read_mst_fixup((NTFS_RECORD*)trp, + /* + * Perform the multi sector transfer deprotection on the buffer if the + * restart page is protected. + */ + if ((!ntfs_is_chkd_record(trp->magic) || le16_to_cpu(trp->usa_count)) + && post_read_mst_fixup((NTFS_RECORD*)trp, le32_to_cpu(rp->system_page_size))) { /* * A multi sector tranfer error was detected. We only need to @@ -615,11 +630,16 @@ is_empty: * Otherwise just throw it away. */ if (rstr2_lsn > rstr1_lsn) { + ntfs_debug("Using second restart page as it is more " + "recent."); ntfs_free(rstr1_ph); rstr1_ph = rstr2_ph; /* rstr1_lsn = rstr2_lsn; */ - } else + } else { + ntfs_debug("Using first restart page as it is more " + "recent."); ntfs_free(rstr2_ph); + } rstr2_ph = NULL; } /* All consistency checks passed. */ From 8c3520d4eb3b1bbf2e45fbae8dcfb8db06d5e775 Mon Sep 17 00:00:00 2001 From: Daniel Ritz Date: Sun, 21 Aug 2005 22:29:26 -0700 Subject: [PATCH 132/352] [PATCH] yenta: auto-tune EnE bridges for CardBus cards Echo Audio cardbus products are known to be incompatible with EnE bridges. in order to maybe solve the problem a EnE specific test bit has to be set, another cleared...but other setups have a good chance to break when just forcing the bits. so do the whole thingy automatically. The patch adds a hook in cb_alloc() that allows special tuning for the different chipsets. for ene just match the Echo products and set/clear the test bits, defaults to do the same thing as w/o the patch to not break working setups. Signed-off-by: Daniel Ritz Cc: Linus Torvalds Signed-off-by: Andrew Morton Signed-off-by: Dominik Brodowski --- drivers/pcmcia/cardbus.c | 5 ++ drivers/pcmcia/ti113x.h | 86 +++++++++++++++++++++++++++++++---- drivers/pcmcia/yenta_socket.c | 15 ++++-- include/linux/pci_ids.h | 5 ++ include/pcmcia/ss.h | 9 +++- 5 files changed, 105 insertions(+), 15 deletions(-) diff --git a/drivers/pcmcia/cardbus.c b/drivers/pcmcia/cardbus.c index 1d755e20880c..3f6d51d11374 100644 --- a/drivers/pcmcia/cardbus.c +++ b/drivers/pcmcia/cardbus.c @@ -228,6 +228,11 @@ int cb_alloc(struct pcmcia_socket * s) pci_bus_size_bridges(bus); pci_bus_assign_resources(bus); cardbus_assign_irqs(bus, s->pci_irq); + + /* socket specific tune function */ + if (s->tune_bridge) + s->tune_bridge(s, bus); + pci_enable_bridges(bus); pci_bus_add_devices(bus); diff --git a/drivers/pcmcia/ti113x.h b/drivers/pcmcia/ti113x.h index fbe233e19ceb..d319f2e7d053 100644 --- a/drivers/pcmcia/ti113x.h +++ b/drivers/pcmcia/ti113x.h @@ -153,6 +153,12 @@ /* EnE test register */ #define ENE_TEST_C9 0xc9 /* 8bit */ #define ENE_TEST_C9_TLTENABLE 0x02 +#define ENE_TEST_C9_PFENABLE_F0 0x04 +#define ENE_TEST_C9_PFENABLE_F1 0x08 +#define ENE_TEST_C9_PFENABLE (ENE_TEST_C9_PFENABLE_F0 | ENE_TEST_C9_PFENABLE_F0) +#define ENE_TEST_C9_WPDISALBLE_F0 0x40 +#define ENE_TEST_C9_WPDISALBLE_F1 0x80 +#define ENE_TEST_C9_WPDISALBLE (ENE_TEST_C9_WPDISALBLE_F0 | ENE_TEST_C9_WPDISALBLE_F1) /* * Texas Instruments CardBus controller overrides. @@ -790,16 +796,6 @@ static int ti12xx_override(struct yenta_socket *socket) if (val_orig != val) config_writel(socket, TI113X_SYSTEM_CONTROL, val); - /* - * for EnE bridges only: clear testbit TLTEnable. this makes the - * RME Hammerfall DSP sound card working. - */ - if (socket->dev->vendor == PCI_VENDOR_ID_ENE) { - u8 test_c9 = config_readb(socket, ENE_TEST_C9); - test_c9 &= ~ENE_TEST_C9_TLTENABLE; - config_writeb(socket, ENE_TEST_C9, test_c9); - } - /* * Yenta expects controllers to use CSCINT to route * CSC interrupts to PCI rather than INTVAL. @@ -841,5 +837,75 @@ static int ti1250_override(struct yenta_socket *socket) return ti12xx_override(socket); } + +/** + * EnE specific part. EnE bridges are register compatible with TI bridges but + * have their own test registers and more important their own little problems. + * Some fixup code to make everybody happy (TM). + */ + +/** + * set/clear various test bits: + * Defaults to clear the bit. + * - mask (u8) defines what bits to change + * - bits (u8) is the values to change them to + * -> it's + * current = (current & ~mask) | bits + */ +/* pci ids of devices that wants to have the bit set */ +#define DEVID(_vend,_dev,_subvend,_subdev,mask,bits) { \ + .vendor = _vend, \ + .device = _dev, \ + .subvendor = _subvend, \ + .subdevice = _subdev, \ + .driver_data = ((mask) << 8 | (bits)), \ + } +static struct pci_device_id ene_tune_tbl[] = { + /* Echo Audio products based on motorola DSP56301 and DSP56361 */ + DEVID(PCI_VENDOR_ID_MOTOROLA, 0x1801, 0xECC0, PCI_ANY_ID, + ENE_TEST_C9_TLTENABLE | ENE_TEST_C9_PFENABLE, ENE_TEST_C9_TLTENABLE), + DEVID(PCI_VENDOR_ID_MOTOROLA, 0x3410, 0xECC0, PCI_ANY_ID, + ENE_TEST_C9_TLTENABLE | ENE_TEST_C9_PFENABLE, ENE_TEST_C9_TLTENABLE), + + {} +}; + +static void ene_tune_bridge(struct pcmcia_socket *sock, struct pci_bus *bus) +{ + struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); + struct pci_dev *dev; + struct pci_device_id *id = NULL; + u8 test_c9, old_c9, mask, bits; + + list_for_each_entry(dev, &bus->devices, bus_list) { + id = (struct pci_device_id *) pci_match_id(ene_tune_tbl, dev); + if (id) + break; + } + + test_c9 = old_c9 = config_readb(socket, ENE_TEST_C9); + if (id) { + mask = (id->driver_data >> 8) & 0xFF; + bits = id->driver_data & 0xFF; + + test_c9 = (test_c9 & ~mask) | bits; + } + else + /* default to clear TLTEnable bit, old behaviour */ + test_c9 &= ~ENE_TEST_C9_TLTENABLE; + + printk(KERN_INFO "yenta EnE: chaning testregister 0xC9, %02x -> %02x\n", old_c9, test_c9); + config_writeb(socket, ENE_TEST_C9, test_c9); +} + + +static int ene_override(struct yenta_socket *socket) +{ + /* install tune_bridge() function */ + socket->socket.tune_bridge = ene_tune_bridge; + + return ti1250_override(socket); +} + #endif /* _LINUX_TI113X_H */ diff --git a/drivers/pcmcia/yenta_socket.c b/drivers/pcmcia/yenta_socket.c index ba4d78e5b121..fd2a6f892c41 100644 --- a/drivers/pcmcia/yenta_socket.c +++ b/drivers/pcmcia/yenta_socket.c @@ -819,6 +819,7 @@ enum { CARDBUS_TYPE_TOPIC95, CARDBUS_TYPE_TOPIC97, CARDBUS_TYPE_O2MICRO, + CARDBUS_TYPE_ENE, }; /* @@ -865,6 +866,12 @@ static struct cardbus_type cardbus_type[] = { .override = o2micro_override, .restore_state = o2micro_restore_state, }, + [CARDBUS_TYPE_ENE] = { + .override = ene_override, + .save_state = ti_save_state, + .restore_state = ti_restore_state, + .sock_init = ti_init, + }, }; @@ -1265,10 +1272,10 @@ static struct pci_device_id yenta_table [] = { CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1250, TI1250), CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1410, TI1250), - CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1211, TI12XX), - CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1225, TI12XX), - CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1410, TI1250), - CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1420, TI12XX), + CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1211, ENE), + CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1225, ENE), + CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1410, ENE), + CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1420, ENE), CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C465, RICOH), CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C466, RICOH), diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index b86a4b77007e..92efb2c767f9 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -2187,7 +2187,12 @@ #define PCI_DEVICE_ID_ENE_1211 0x1211 #define PCI_DEVICE_ID_ENE_1225 0x1225 #define PCI_DEVICE_ID_ENE_1410 0x1410 +#define PCI_DEVICE_ID_ENE_710 0x1411 +#define PCI_DEVICE_ID_ENE_712 0x1412 #define PCI_DEVICE_ID_ENE_1420 0x1420 +#define PCI_DEVICE_ID_ENE_720 0x1421 +#define PCI_DEVICE_ID_ENE_722 0x1422 + #define PCI_VENDOR_ID_CHELSIO 0x1425 #define PCI_VENDOR_ID_MIPS 0x153f diff --git a/include/pcmcia/ss.h b/include/pcmcia/ss.h index 0f7aacc33fe9..c8592c7e8eaa 100644 --- a/include/pcmcia/ss.h +++ b/include/pcmcia/ss.h @@ -21,6 +21,9 @@ #include #include #include +#ifdef CONFIG_CARDBUS +#include +#endif /* Definitions for card status flags for GetStatus */ #define SS_WRPROT 0x0001 @@ -233,7 +236,11 @@ struct pcmcia_socket { /* so is power hook */ int (*power_hook)(struct pcmcia_socket *sock, int operation); - +#ifdef CONFIG_CARDBUS + /* allows tuning the CB bridge before loading driver for the CB card */ + void (*tune_bridge)(struct pcmcia_socket *sock, struct pci_bus *bus); +#endif + /* state thread */ struct semaphore skt_sem; /* protects socket h/w state */ From a413c09094e4df714c274690928dcf8125daf7e8 Mon Sep 17 00:00:00 2001 From: Daniel Ritz Date: Wed, 24 Aug 2005 17:03:23 +0200 Subject: [PATCH 133/352] [PATCH] yenta: don't mess with bridge control register In interrupt probing (both ISA and PCI) the bridge control register is used to change interrupt routing to ISA or PCI by changing bit 7. But this bit only controls the routing of card functional interrupts, not the CSC interrupts which are used for interrupt probing. A bad side effect of messing with this register in yenta_probe_irq() is that it can lead to irq storms if a card is inserted and already powered by the BIOS. Usage in yenta_sock_init() and yenta_config_init() seem to be fishy as well. Signed-off-by: Daniel Ritz Signed-off-by: Andrew Morton Signed-off-by: Dominik Brodowski --- drivers/pcmcia/yenta_socket.c | 30 +++--------------------------- 1 file changed, 3 insertions(+), 27 deletions(-) diff --git a/drivers/pcmcia/yenta_socket.c b/drivers/pcmcia/yenta_socket.c index fd2a6f892c41..53a02f085800 100644 --- a/drivers/pcmcia/yenta_socket.c +++ b/drivers/pcmcia/yenta_socket.c @@ -559,12 +559,6 @@ static void yenta_interrogate(struct yenta_socket *socket) static int yenta_sock_init(struct pcmcia_socket *sock) { struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); - u16 bridge; - - bridge = config_readw(socket, CB_BRIDGE_CONTROL) & ~CB_BRIDGE_INTR; - if (!socket->cb_irq) - bridge |= CB_BRIDGE_INTR; - config_writew(socket, CB_BRIDGE_CONTROL, bridge); exca_writeb(socket, I365_GBLCTL, 0x00); exca_writeb(socket, I365_GENCTL, 0x00); @@ -890,16 +884,8 @@ static unsigned int yenta_probe_irq(struct yenta_socket *socket, u32 isa_irq_mas { int i; unsigned long val; - u16 bridge_ctrl; u32 mask; - /* Set up ISA irq routing to probe the ISA irqs.. */ - bridge_ctrl = config_readw(socket, CB_BRIDGE_CONTROL); - if (!(bridge_ctrl & CB_BRIDGE_INTR)) { - bridge_ctrl |= CB_BRIDGE_INTR; - config_writew(socket, CB_BRIDGE_CONTROL, bridge_ctrl); - } - /* * Probe for usable interrupts using the force * register to generate bogus card status events. @@ -921,9 +907,6 @@ static unsigned int yenta_probe_irq(struct yenta_socket *socket, u32 isa_irq_mas mask = probe_irq_mask(val) & 0xffff; - bridge_ctrl &= ~CB_BRIDGE_INTR; - config_writew(socket, CB_BRIDGE_CONTROL, bridge_ctrl); - return mask; } @@ -951,18 +934,11 @@ static irqreturn_t yenta_probe_handler(int irq, void *dev_id, struct pt_regs *re /* probes the PCI interrupt, use only on override functions */ static int yenta_probe_cb_irq(struct yenta_socket *socket) { - u16 bridge_ctrl; - if (!socket->cb_irq) return -1; socket->probe_status = 0; - /* disable ISA interrupts */ - bridge_ctrl = config_readw(socket, CB_BRIDGE_CONTROL); - bridge_ctrl &= ~CB_BRIDGE_INTR; - config_writew(socket, CB_BRIDGE_CONTROL, bridge_ctrl); - if (request_irq(socket->cb_irq, yenta_probe_handler, SA_SHIRQ, "yenta", socket)) { printk(KERN_WARNING "Yenta: request_irq() in yenta_probe_cb_irq() failed!\n"); return -1; @@ -973,7 +949,7 @@ static int yenta_probe_cb_irq(struct yenta_socket *socket) cb_writel(socket, CB_SOCKET_EVENT, -1); cb_writel(socket, CB_SOCKET_MASK, CB_CSTSMASK); cb_writel(socket, CB_SOCKET_FORCE, CB_FCARDSTS); - + msleep(100); /* disable interrupts */ @@ -1038,8 +1014,8 @@ static void yenta_config_init(struct yenta_socket *socket) * - PCI interrupts enabled if a PCI interrupt exists.. */ bridge = config_readw(socket, CB_BRIDGE_CONTROL); - bridge &= ~(CB_BRIDGE_CRST | CB_BRIDGE_PREFETCH1 | CB_BRIDGE_INTR | CB_BRIDGE_ISAEN | CB_BRIDGE_VGAEN); - bridge |= CB_BRIDGE_PREFETCH0 | CB_BRIDGE_POSTEN | CB_BRIDGE_INTR; + bridge &= ~(CB_BRIDGE_CRST | CB_BRIDGE_PREFETCH1 | CB_BRIDGE_ISAEN | CB_BRIDGE_VGAEN); + bridge |= CB_BRIDGE_PREFETCH0 | CB_BRIDGE_POSTEN; config_writew(socket, CB_BRIDGE_CONTROL, bridge); } From 8e5d17ebe41eb98a538ef13aad36da5136701aab Mon Sep 17 00:00:00 2001 From: Dominik Brodowski Date: Wed, 7 Sep 2005 16:00:28 -0700 Subject: [PATCH 134/352] [PATCH] yenta: tiny cleanup pci_set_power_state is not needed, as we call pci_enable_device() somewhere else. Also, the resource we write to PCI_BASE_ADDRESS_0 needs to be converted to bus-centric view first. Signed-off-by: Dominik Brodowski --- drivers/pcmcia/yenta_socket.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/pcmcia/yenta_socket.c b/drivers/pcmcia/yenta_socket.c index 53a02f085800..80806c9b43ad 100644 --- a/drivers/pcmcia/yenta_socket.c +++ b/drivers/pcmcia/yenta_socket.c @@ -987,11 +987,12 @@ static void yenta_config_init(struct yenta_socket *socket) { u16 bridge; struct pci_dev *dev = socket->dev; + struct pci_bus_region region; - pci_set_power_state(socket->dev, 0); + pcibios_resource_to_bus(socket->dev, ®ion, &dev->resource[0]); config_writel(socket, CB_LEGACY_MODE_BASE, 0); - config_writel(socket, PCI_BASE_ADDRESS_0, dev->resource[0].start); + config_writel(socket, PCI_BASE_ADDRESS_0, region.start); config_writew(socket, PCI_COMMAND, PCI_COMMAND_IO | PCI_COMMAND_MEMORY | From 81000808b636b75a0ff5ef86c28f24fc6f5151eb Mon Sep 17 00:00:00 2001 From: Komuro Date: Sat, 24 Sep 2005 23:12:40 -0700 Subject: [PATCH 135/352] [PATCH] pcmcia: fix Kconfig dependency TCIC depends on ISA. It is used with ISA-bus system only. Signed-off-by: komurojun-mbn@nifty.com Signed-off-by: Dominik Brodowski --- drivers/pcmcia/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pcmcia/Kconfig b/drivers/pcmcia/Kconfig index ddc741e6ecbf..36cc9a96a338 100644 --- a/drivers/pcmcia/Kconfig +++ b/drivers/pcmcia/Kconfig @@ -146,7 +146,7 @@ config I82365 config TCIC tristate "Databook TCIC host bridge support" - depends on PCMCIA + depends on PCMCIA && ISA select PCCARD_NONSTATIC help Say Y here to include support for the Databook TCIC family of PCMCIA From 6c1a10dba92cbacb58563f5eacf93807125b488a Mon Sep 17 00:00:00 2001 From: Daniel Ritz Date: Tue, 20 Sep 2005 14:12:17 -0700 Subject: [PATCH 136/352] [PATCH] yenta: add support for more TI bridges Support some more TI cardbus bridges. most of them are multifunction devices which adds 1394 controllers, smartcard readers etc. this could also help with the various problems with the XX21 controllers seen on the linux-pcmcia list. Signed-off-by: Daniel Ritz Signed-off-by: Dominik Brodowski --- drivers/pcmcia/ti113x.h | 29 +++++++++++++++++++++++++++++ drivers/pcmcia/yenta_socket.c | 8 ++++++++ include/linux/pci_ids.h | 7 +++++++ 3 files changed, 44 insertions(+) diff --git a/drivers/pcmcia/ti113x.h b/drivers/pcmcia/ti113x.h index d319f2e7d053..da0b404561c9 100644 --- a/drivers/pcmcia/ti113x.h +++ b/drivers/pcmcia/ti113x.h @@ -59,6 +59,7 @@ #define TI122X_SCR_SER_STEP 0xc0000000 #define TI122X_SCR_INTRTIE 0x20000000 +#define TIXX21_SCR_TIEALL 0x10000000 #define TI122X_SCR_CBRSVD 0x00400000 #define TI122X_SCR_MRBURSTDN 0x00008000 #define TI122X_SCR_MRBURSTUP 0x00004000 @@ -624,6 +625,7 @@ static int ti12xx_2nd_slot_empty(struct yenta_socket *socket) int devfn; unsigned int state; int ret = 1; + u32 sysctl; /* catch the two-slot controllers */ switch (socket->dev->device) { @@ -646,6 +648,24 @@ static int ti12xx_2nd_slot_empty(struct yenta_socket *socket) */ break; + case PCI_DEVICE_ID_TI_X515: + case PCI_DEVICE_ID_TI_X420: + case PCI_DEVICE_ID_TI_X620: + case PCI_DEVICE_ID_TI_XX21_XX11: + case PCI_DEVICE_ID_TI_7410: + case PCI_DEVICE_ID_TI_7610: + /* + * those are either single or dual slot CB with additional functions + * like 1394, smartcard reader, etc. check the TIEALL flag for them + * the TIEALL flag binds the IRQ of all functions toghether. + * we catch the single slot variants later. + */ + sysctl = config_readl(socket, TI113X_SYSTEM_CONTROL); + if (sysctl & TIXX21_SCR_TIEALL) + return 0; + + break; + /* single-slot controllers have the 2nd slot empty always :) */ default: return 1; @@ -658,6 +678,15 @@ static int ti12xx_2nd_slot_empty(struct yenta_socket *socket) if (!func) return 1; + /* + * check that the device id of both slots match. this is needed for the + * XX21 and the XX11 controller that share the same device id for single + * and dual slot controllers. return '2nd slot empty'. we already checked + * if the interrupt is tied to another function. + */ + if (socket->dev->device != func->device) + goto out; + slot2 = pci_get_drvdata(func); if (!slot2) goto out; diff --git a/drivers/pcmcia/yenta_socket.c b/drivers/pcmcia/yenta_socket.c index 80806c9b43ad..c3e22fca105a 100644 --- a/drivers/pcmcia/yenta_socket.c +++ b/drivers/pcmcia/yenta_socket.c @@ -1249,6 +1249,14 @@ static struct pci_device_id yenta_table [] = { CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1250, TI1250), CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1410, TI1250), + CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XX21_XX11, TI12XX), + CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X515, TI12XX), + CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X420, TI12XX), + CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X620, TI12XX), + CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7410, TI12XX), + CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7510, TI12XX), + CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7610, TI12XX), + CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1211, ENE), CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1225, ENE), CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1410, ENE), diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index 92efb2c767f9..68f11ac1a314 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -769,6 +769,8 @@ #define PCI_DEVICE_ID_TI_TVP4010 0x3d04 #define PCI_DEVICE_ID_TI_TVP4020 0x3d07 #define PCI_DEVICE_ID_TI_4450 0x8011 +#define PCI_DEVICE_ID_TI_XX21_XX11 0x8031 +#define PCI_DEVICE_ID_TI_X515 0x8036 #define PCI_DEVICE_ID_TI_1130 0xac12 #define PCI_DEVICE_ID_TI_1031 0xac13 #define PCI_DEVICE_ID_TI_1131 0xac15 @@ -785,12 +787,17 @@ #define PCI_DEVICE_ID_TI_4451 0xac42 #define PCI_DEVICE_ID_TI_4510 0xac44 #define PCI_DEVICE_ID_TI_4520 0xac46 +#define PCI_DEVICE_ID_TI_7510 0xac47 +#define PCI_DEVICE_ID_TI_7610 0xac48 +#define PCI_DEVICE_ID_TI_7410 0xac49 #define PCI_DEVICE_ID_TI_1410 0xac50 #define PCI_DEVICE_ID_TI_1420 0xac51 #define PCI_DEVICE_ID_TI_1451A 0xac52 #define PCI_DEVICE_ID_TI_1620 0xac54 #define PCI_DEVICE_ID_TI_1520 0xac55 #define PCI_DEVICE_ID_TI_1510 0xac56 +#define PCI_DEVICE_ID_TI_X620 0xac8d +#define PCI_DEVICE_ID_TI_X420 0xac8e #define PCI_VENDOR_ID_SONY 0x104d #define PCI_DEVICE_ID_SONY_CXD3222 0x8039 From a42f0dc4376fc574980864f890d1527894719cde Mon Sep 17 00:00:00 2001 From: Dominik Brodowski Date: Sat, 24 Sep 2005 23:12:44 -0700 Subject: [PATCH 137/352] [PATCH] pcmcia: new IDs for serial_cs Add new ID to serial_cs.c; the CIS fimware override is available by the manufacturer at http://www.sierrawireless.com . Remember to name the CIS binary SW_7xx_SER.cis and to put it into /lib/firmware/ Signed-off-by: Dominik Brodowski --- drivers/serial/serial_cs.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/serial/serial_cs.c b/drivers/serial/serial_cs.c index 1ae0b381c162..2c7d3ef76e8e 100644 --- a/drivers/serial/serial_cs.c +++ b/drivers/serial/serial_cs.c @@ -859,6 +859,7 @@ static struct pcmcia_device_id serial_ids[] = { PCMCIA_MFC_DEVICE_CIS_MANF_CARD(1, 0x0175, 0x0000, "DP83903.cis"), PCMCIA_MFC_DEVICE_CIS_MANF_CARD(1, 0x0101, 0x0035, "3CXEM556.cis"), PCMCIA_MFC_DEVICE_CIS_MANF_CARD(1, 0x0101, 0x003d, "3CXEM556.cis"), + PCMCIA_DEVICE_CIS_MANF_CARD(0x0192, 0x0710, "SW_7xx_SER.cis"), /* Sierra Wireless AC710/AC750 GPRS Network Adapter R1 */ PCMCIA_DEVICE_CIS_PROD_ID12("MultiTech", "PCMCIA 56K DataFax", 0x842047ee, 0xc2efcf03, "MT5634ZLX.cis"), PCMCIA_DEVICE_CIS_PROD_ID12("ADVANTECH", "COMpad-32/85B-4", 0x96913a85, 0xcec8f102, "COMpad4.cis"), PCMCIA_DEVICE_CIS_PROD_ID123("ADVANTECH", "COMpad-32/85", "1.0", 0x96913a85, 0x8fbe92ae, 0x0877b627, "COMpad2.cis"), From f9cb8b71e7d6c858b1afe665fd0a09169fdf4390 Mon Sep 17 00:00:00 2001 From: Daniel Ritz Date: Sat, 24 Sep 2005 23:12:46 -0700 Subject: [PATCH 138/352] [PATCH] yenta: more ENE bridges Adds better support for the CB-710, CB-712, CB-720 and CB-722 bridges from EnE Signed-off-by: Daniel Ritz Signed-off-by: Dominik Brodowski --- drivers/pcmcia/yenta_socket.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/pcmcia/yenta_socket.c b/drivers/pcmcia/yenta_socket.c index c3e22fca105a..db9f952f9e3c 100644 --- a/drivers/pcmcia/yenta_socket.c +++ b/drivers/pcmcia/yenta_socket.c @@ -1257,6 +1257,10 @@ static struct pci_device_id yenta_table [] = { CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7510, TI12XX), CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7610, TI12XX), + CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_710, TI12XX), + CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_712, TI12XX), + CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_720, TI12XX), + CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_722, TI12XX), CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1211, ENE), CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1225, ENE), CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1410, ENE), From 2570b746484cfddf4b7b4715dbb69d53d5284f4d Mon Sep 17 00:00:00 2001 From: Dominik Brodowski Date: Sat, 17 Sep 2005 11:17:56 +0200 Subject: [PATCH 139/352] [PATCH] pcmcia: update ID for NinjaATA Christian Zoz reported there are multiple NinjaATA devices all sharing the second product ID string, but not the first one. Signed-off-by: Dominik Brodowski --- drivers/ide/legacy/ide-cs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/ide/legacy/ide-cs.c b/drivers/ide/legacy/ide-cs.c index 0ccf85fcee34..a35a58bef1a4 100644 --- a/drivers/ide/legacy/ide-cs.c +++ b/drivers/ide/legacy/ide-cs.c @@ -477,7 +477,7 @@ static struct pcmcia_device_id ide_ids[] = { PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDE", 0x547e66dc, 0x5c5ab149), PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDEII", 0x547e66dc, 0xb3662674), PCMCIA_DEVICE_PROD_ID12("LOOKMEET", "CBIDE2 ", 0xe37be2b5, 0x8671043b), - PCMCIA_DEVICE_PROD_ID12(" ", "NinjaATA-", 0x3b6e20c8, 0xebe0bd79), + PCMCIA_DEVICE_PROD_ID2("NinjaATA-", 0xebe0bd79), PCMCIA_DEVICE_PROD_ID12("PCMCIA", "CD-ROM", 0x281f1c5d, 0x66536591), PCMCIA_DEVICE_PROD_ID12("PCMCIA", "PnPIDE", 0x281f1c5d, 0x0c694728), PCMCIA_DEVICE_PROD_ID12("SHUTTLE TECHNOLOGY LTD.", "PCCARD-IDE/ATAPI Adapter", 0x4a3f0ba0, 0x322560e1), From 4fb7edce52e5b6cf41e3375822d74a27f0b6f2dd Mon Sep 17 00:00:00 2001 From: Kars de Jong Date: Sun, 25 Sep 2005 14:39:46 +0200 Subject: [PATCH 140/352] [PATCH] pcmcia: fix cross-platform issues with pcmcia module aliases - Added a missing TO_NATIVE call to scripts/mod/file2alias.c:do_pcmcia_entry() - Add an alignment attribute to struct pcmcia_device_no to solve an alignment issue seen when cross-compiling on x86 for m68k. Signed-off-by: Kars de Jong Signed-off-by: Dominik Brodowski --- include/linux/mod_devicetable.h | 5 +++-- scripts/mod/file2alias.c | 2 ++ 2 files changed, 5 insertions(+), 2 deletions(-) diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h index 47da39ba3f03..4ed2107bc020 100644 --- a/include/linux/mod_devicetable.h +++ b/include/linux/mod_devicetable.h @@ -209,10 +209,11 @@ struct pcmcia_device_id { /* for real multi-function devices */ __u8 function; - /* for pseude multi-function devices */ + /* for pseudo multi-function devices */ __u8 device_no; - __u32 prod_id_hash[4]; + __u32 prod_id_hash[4] + __attribute__((aligned(sizeof(__u32)))); /* not matched against in kernelspace*/ #ifdef __KERNEL__ diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c index d8ee38aede26..f2ee673329a7 100644 --- a/scripts/mod/file2alias.c +++ b/scripts/mod/file2alias.c @@ -295,11 +295,13 @@ static int do_pcmcia_entry(const char *filename, { unsigned int i; + id->match_flags = TO_NATIVE(id->match_flags); id->manf_id = TO_NATIVE(id->manf_id); id->card_id = TO_NATIVE(id->card_id); id->func_id = TO_NATIVE(id->func_id); id->function = TO_NATIVE(id->function); id->device_no = TO_NATIVE(id->device_no); + for (i=0; i<4; i++) { id->prod_id_hash[i] = TO_NATIVE(id->prod_id_hash[i]); } From cbf8fd9f5aa5164e05cb04d4a34fcbe82f60beeb Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 26 Sep 2005 15:30:20 +0100 Subject: [PATCH 141/352] [ARM] Remove SA_IRQNOMASK SA_IRQNOMASK is unused, remove it. Signed-off-by: Russell King --- include/asm-arm/signal.h | 1 - 1 file changed, 1 deletion(-) diff --git a/include/asm-arm/signal.h b/include/asm-arm/signal.h index 760f6e65af05..ced69161917b 100644 --- a/include/asm-arm/signal.h +++ b/include/asm-arm/signal.h @@ -115,7 +115,6 @@ typedef unsigned long sigset_t; #ifdef __KERNEL__ #define SA_TIMER 0x40000000 -#define SA_IRQNOMASK 0x08000000 #endif #include From e2fcc61ef0d654887b651bd99ffcb52f7344b836 Mon Sep 17 00:00:00 2001 From: Anton Altaparmakov Date: Mon, 26 Sep 2005 17:02:41 +0100 Subject: [PATCH 142/352] NTFS: Re-fix sparse warnings in a more correct way, i.e. don't use an enum with different types in it but #define the two constants instead. Signed-off-by: Anton Altaparmakov --- fs/ntfs/layout.h | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-) diff --git a/fs/ntfs/layout.h b/fs/ntfs/layout.h index d5491de6abf4..01f2dfa39cec 100644 --- a/fs/ntfs/layout.h +++ b/fs/ntfs/layout.h @@ -308,22 +308,19 @@ typedef le16 MFT_RECORD_FLAGS; * The _LE versions are to be applied on little endian MFT_REFs. * Note: The _LE versions will return a CPU endian formatted value! */ -typedef enum { - MFT_REF_MASK_CPU = 0x0000ffffffffffffULL, - MFT_REF_MASK_LE = const_cpu_to_le64(0x0000ffffffffffffULL), -} MFT_REF_CONSTS; +#define MFT_REF_MASK_CPU 0x0000ffffffffffffULL +#define MFT_REF_MASK_LE const_cpu_to_le64(0x0000ffffffffffffULL) typedef u64 MFT_REF; typedef le64 leMFT_REF; #define MK_MREF(m, s) ((MFT_REF)(((MFT_REF)(s) << 48) | \ - ((MFT_REF)(m) & (u64)MFT_REF_MASK_CPU))) + ((MFT_REF)(m) & MFT_REF_MASK_CPU))) #define MK_LE_MREF(m, s) cpu_to_le64(MK_MREF(m, s)) -#define MREF(x) ((unsigned long)((x) & (u64)MFT_REF_MASK_CPU)) +#define MREF(x) ((unsigned long)((x) & MFT_REF_MASK_CPU)) #define MSEQNO(x) ((u16)(((x) >> 48) & 0xffff)) -#define MREF_LE(x) ((unsigned long)(le64_to_cpu(x) & \ - (u64)MFT_REF_MASK_CPU)) +#define MREF_LE(x) ((unsigned long)(le64_to_cpu(x) & MFT_REF_MASK_CPU)) #define MSEQNO_LE(x) ((u16)((le64_to_cpu(x) >> 48) & 0xffff)) #define IS_ERR_MREF(x) (((x) & 0x0000800000000000ULL) ? 1 : 0) From 018771f435388f22f388eb8658c652086fb3633e Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Wed, 21 Sep 2005 21:40:12 -0700 Subject: [PATCH 143/352] [IB] mthca: Fix doorbell record resource leak If we allocate a bunch of doorbell records and then free them, we'll end up with completely empty pages, which we then free. However, when we come back to allocate more doorbell pages, we have to reallocate those empty pages rather than always trying to take a slot that we've never used. If we don't, we eventually use up every slot and fail to allocate a doorbell record, even though we have plenty of free space. Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mthca/mthca_memfree.c | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) diff --git a/drivers/infiniband/hw/mthca/mthca_memfree.c b/drivers/infiniband/hw/mthca/mthca_memfree.c index 1827400f189b..d0c41fe046f0 100644 --- a/drivers/infiniband/hw/mthca/mthca_memfree.c +++ b/drivers/infiniband/hw/mthca/mthca_memfree.c @@ -529,12 +529,25 @@ int mthca_alloc_db(struct mthca_dev *dev, int type, u32 qn, __be32 **db) goto found; } + for (i = start; i != end; i += dir) + if (!dev->db_tab->page[i].db_rec) { + page = dev->db_tab->page + i; + goto alloc; + } + if (dev->db_tab->max_group1 >= dev->db_tab->min_group2 - 1) { ret = -ENOMEM; goto out; } + if (group == 0) + ++dev->db_tab->max_group1; + else + --dev->db_tab->min_group2; + page = dev->db_tab->page + end; + +alloc: page->db_rec = dma_alloc_coherent(&dev->pdev->dev, 4096, &page->mapping, GFP_KERNEL); if (!page->db_rec) { @@ -554,10 +567,6 @@ int mthca_alloc_db(struct mthca_dev *dev, int type, u32 qn, __be32 **db) } bitmap_zero(page->used, MTHCA_DB_REC_PER_PAGE); - if (group == 0) - ++dev->db_tab->max_group1; - else - --dev->db_tab->min_group2; found: j = find_first_zero_bit(page->used, MTHCA_DB_REC_PER_PAGE); From f7ed3a5971da98acdc506bdbdef25cfe51c334a2 Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Mon, 26 Sep 2005 09:29:33 -0700 Subject: [PATCH 144/352] [IB] mthca: fix off by one in clr_int calculation We should use the first word of the clear interrupt register if the bit we're after is < 32, not < 31. Signed-off-by: Michael S. Tsirkin Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mthca/mthca_eq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/mthca/mthca_eq.c b/drivers/infiniband/hw/mthca/mthca_eq.c index 78152a8ad17d..c81fa8e975ef 100644 --- a/drivers/infiniband/hw/mthca/mthca_eq.c +++ b/drivers/infiniband/hw/mthca/mthca_eq.c @@ -836,7 +836,7 @@ int __devinit mthca_init_eq_table(struct mthca_dev *dev) dev->eq_table.clr_mask = swab32(1 << (dev->eq_table.inta_pin & 31)); dev->eq_table.clr_int = dev->clr_base + - (dev->eq_table.inta_pin < 31 ? 4 : 0); + (dev->eq_table.inta_pin < 32 ? 4 : 0); } dev->eq_table.arm_mask = 0; From 44dd823b00fa64bf01e53557d28555011f122a88 Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Mon, 26 Sep 2005 09:42:09 -0700 Subject: [PATCH 145/352] [IB] mthca: Fix off by one bug in mthca_map_cmd The loop in mthca_map_cmd() would fill one entry past the end of the mailbox buffer before calling the firmware command. Signed-off-by: Michael S. Tsirkin Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mthca/mthca_cmd.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/infiniband/hw/mthca/mthca_cmd.c b/drivers/infiniband/hw/mthca/mthca_cmd.c index cc758a2d2bc6..f6a8ac026557 100644 --- a/drivers/infiniband/hw/mthca/mthca_cmd.c +++ b/drivers/infiniband/hw/mthca/mthca_cmd.c @@ -605,7 +605,7 @@ static int mthca_map_cmd(struct mthca_dev *dev, u16 op, struct mthca_icm *icm, err = -EINVAL; goto out; } - for (i = 0; i < mthca_icm_size(&iter) / (1 << lg); ++i, ++nent) { + for (i = 0; i < mthca_icm_size(&iter) / (1 << lg); ++i) { if (virt != -1) { pages[nent * 2] = cpu_to_be64(virt); virt += 1 << lg; @@ -616,7 +616,7 @@ static int mthca_map_cmd(struct mthca_dev *dev, u16 op, struct mthca_icm *icm, ts += 1 << (lg - 10); ++tc; - if (nent == MTHCA_MAILBOX_SIZE / 16) { + if (++nent == MTHCA_MAILBOX_SIZE / 16) { err = mthca_cmd(dev, mailbox->dma, nent, 0, op, CMD_TIME_CLASS_B, status); if (err || *status) From 6132f9e146150473f803323dc8064a5506e33952 Mon Sep 17 00:00:00 2001 From: David Vrabel Date: Mon, 26 Sep 2005 19:52:56 +0100 Subject: [PATCH 146/352] [ARM] 2935/1: ixp4xx: fix warnings in ixp4xx_set_irq_type Patch from David Vrabel Signed-off-by: David Vrabel Signed-off-by: Russell King --- arch/arm/mach-ixp4xx/common.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-ixp4xx/common.c b/arch/arm/mach-ixp4xx/common.c index 52ad11328e96..36b6045213ee 100644 --- a/arch/arm/mach-ixp4xx/common.c +++ b/arch/arm/mach-ixp4xx/common.c @@ -125,7 +125,8 @@ static int ixp4xx_set_irq_type(unsigned int irq, unsigned int type) } else if (type & IRQT_LOW) { int_style = IXP4XX_GPIO_STYLE_ACTIVE_LOW; irq_type = IXP4XX_IRQ_LEVEL; - } + } else + return -EINVAL; ixp4xx_config_irq(irq, irq_type); @@ -142,6 +143,8 @@ static int ixp4xx_set_irq_type(unsigned int irq, unsigned int type) /* Set the new style */ *int_reg |= (int_style << (line * IXP4XX_GPIO_STYLE_SIZE)); + + return 0; } static void ixp4xx_irq_mask(unsigned int irq) From 819ccc86a43739e0cf443b6d6641a8722869be01 Mon Sep 17 00:00:00 2001 From: Vincent Sanders Date: Mon, 26 Sep 2005 19:52:57 +0100 Subject: [PATCH 147/352] [ARM] 2936/1: ixp4xx default config fixes Patch from Vincent Sanders A recent patch which made IXP4xx mach_desc's depend on config options had the effect of not building the kernel for several machines it possibly could be, this patch updates the default config to ensure all possible machines are built for by default. Signed-off-by: Vincent Sanders Signed-off-by: Russell King --- arch/arm/configs/ixp4xx_defconfig | 581 ++++++++++++++++-------------- 1 file changed, 320 insertions(+), 261 deletions(-) diff --git a/arch/arm/configs/ixp4xx_defconfig b/arch/arm/configs/ixp4xx_defconfig index 94aafec5fb46..c279e41ed10e 100644 --- a/arch/arm/configs/ixp4xx_defconfig +++ b/arch/arm/configs/ixp4xx_defconfig @@ -1,14 +1,13 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.12-rc1-bk2 -# Sun Mar 27 22:53:40 2005 +# Linux kernel version: 2.6.14-rc1-git5 +# Tue Sep 20 17:26:28 2005 # CONFIG_ARM=y CONFIG_MMU=y CONFIG_UID16=y CONFIG_RWSEM_GENERIC_SPINLOCK=y CONFIG_GENERIC_CALIBRATE_DELAY=y -CONFIG_GENERIC_IOMAP=y # # Code maturity level options @@ -16,11 +15,13 @@ CONFIG_GENERIC_IOMAP=y CONFIG_EXPERIMENTAL=y CONFIG_CLEAN_COMPILE=y CONFIG_BROKEN_ON_SMP=y +CONFIG_INIT_ENV_ARG_LIMIT=32 # # General setup # CONFIG_LOCALVERSION="" +CONFIG_LOCALVERSION_AUTO=y CONFIG_SWAP=y CONFIG_SYSVIPC=y # CONFIG_POSIX_MQUEUE is not set @@ -31,10 +32,13 @@ CONFIG_SYSCTL=y # CONFIG_HOTPLUG is not set CONFIG_KOBJECT_UEVENT=y # CONFIG_IKCONFIG is not set +CONFIG_INITRAMFS_SOURCE="" CONFIG_EMBEDDED=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set # CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_PRINTK=y +CONFIG_BUG=y CONFIG_BASE_FULL=y CONFIG_FUTEX=y CONFIG_EPOLL=y @@ -81,6 +85,7 @@ CONFIG_ARCH_IXP4XX=y # CONFIG_ARCH_VERSATILE is not set # CONFIG_ARCH_IMX is not set # CONFIG_ARCH_H720X is not set +# CONFIG_ARCH_AAEC2000 is not set CONFIG_ARCH_SUPPORTS_BIG_ENDIAN=y # @@ -90,15 +95,16 @@ CONFIG_ARCH_SUPPORTS_BIG_ENDIAN=y # # IXP4xx Platforms # -# CONFIG_ARCH_AVILA is not set +CONFIG_ARCH_AVILA=y CONFIG_ARCH_ADI_COYOTE=y CONFIG_ARCH_IXDP425=y -# CONFIG_MACH_IXDPG425 is not set -# CONFIG_MACH_IXDP465 is not set +CONFIG_MACH_IXDPG425=y +CONFIG_MACH_IXDP465=y CONFIG_ARCH_IXCDP1100=y CONFIG_ARCH_PRPMC1100=y CONFIG_ARCH_IXDP4XX=y -# CONFIG_MACH_GTWX5715 is not set +CONFIG_CPU_IXP46X=y +CONFIG_MACH_GTWX5715=y # # IXP4xx Options @@ -114,7 +120,6 @@ CONFIG_CPU_32v5=y CONFIG_CPU_ABRT_EV5T=y CONFIG_CPU_CACHE_VIVT=y CONFIG_CPU_TLB_V4WBI=y -CONFIG_CPU_MINICACHE=y # # Processor Features @@ -127,9 +132,10 @@ CONFIG_DMABOUNCE=y # # Bus support # +CONFIG_ISA_DMA_API=y CONFIG_PCI=y CONFIG_PCI_LEGACY_PROC=y -CONFIG_PCI_NAMES=y +# CONFIG_PCI_DEBUG is not set # # PCCARD (PCMCIA/CardBus) support @@ -140,6 +146,15 @@ CONFIG_PCI_NAMES=y # Kernel Features # # CONFIG_PREEMPT is not set +# CONFIG_NO_IDLE_HZ is not set +# CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set +CONFIG_SELECT_MEMORY_MODEL=y +CONFIG_FLATMEM_MANUAL=y +# CONFIG_DISCONTIGMEM_MANUAL is not set +# CONFIG_SPARSEMEM_MANUAL is not set +CONFIG_FLATMEM=y +CONFIG_FLAT_NODE_MEM_MAP=y +# CONFIG_SPARSEMEM_STATIC is not set CONFIG_ALIGNMENT_TRAP=y # @@ -174,6 +189,241 @@ CONFIG_BINFMT_ELF=y CONFIG_PM=y CONFIG_APM=y +# +# Networking +# +CONFIG_NET=y + +# +# Networking options +# +CONFIG_PACKET=m +CONFIG_PACKET_MMAP=y +CONFIG_UNIX=y +CONFIG_XFRM=y +# CONFIG_XFRM_USER is not set +# CONFIG_NET_KEY is not set +CONFIG_INET=y +CONFIG_IP_MULTICAST=y +CONFIG_IP_ADVANCED_ROUTER=y +CONFIG_ASK_IP_FIB_HASH=y +# CONFIG_IP_FIB_TRIE is not set +CONFIG_IP_FIB_HASH=y +CONFIG_IP_MULTIPLE_TABLES=y +CONFIG_IP_ROUTE_FWMARK=y +CONFIG_IP_ROUTE_MULTIPATH=y +# CONFIG_IP_ROUTE_MULTIPATH_CACHED is not set +CONFIG_IP_ROUTE_VERBOSE=y +CONFIG_IP_PNP=y +CONFIG_IP_PNP_DHCP=y +CONFIG_IP_PNP_BOOTP=y +# CONFIG_IP_PNP_RARP is not set +# CONFIG_NET_IPIP is not set +CONFIG_NET_IPGRE=m +CONFIG_NET_IPGRE_BROADCAST=y +CONFIG_IP_MROUTE=y +CONFIG_IP_PIMSM_V1=y +CONFIG_IP_PIMSM_V2=y +# CONFIG_ARPD is not set +CONFIG_SYN_COOKIES=y +# CONFIG_INET_AH is not set +# CONFIG_INET_ESP is not set +# CONFIG_INET_IPCOMP is not set +CONFIG_INET_TUNNEL=m +CONFIG_INET_DIAG=y +CONFIG_INET_TCP_DIAG=y +# CONFIG_TCP_CONG_ADVANCED is not set +CONFIG_TCP_CONG_BIC=y + +# +# IP: Virtual Server Configuration +# +CONFIG_IP_VS=m +CONFIG_IP_VS_DEBUG=y +CONFIG_IP_VS_TAB_BITS=12 + +# +# IPVS transport protocol load balancing support +# +# CONFIG_IP_VS_PROTO_TCP is not set +# CONFIG_IP_VS_PROTO_UDP is not set +# CONFIG_IP_VS_PROTO_ESP is not set +# CONFIG_IP_VS_PROTO_AH is not set + +# +# IPVS scheduler +# +CONFIG_IP_VS_RR=m +CONFIG_IP_VS_WRR=m +CONFIG_IP_VS_LC=m +CONFIG_IP_VS_WLC=m +CONFIG_IP_VS_LBLC=m +CONFIG_IP_VS_LBLCR=m +CONFIG_IP_VS_DH=m +CONFIG_IP_VS_SH=m +# CONFIG_IP_VS_SED is not set +# CONFIG_IP_VS_NQ is not set + +# +# IPVS application helper +# +# CONFIG_IPV6 is not set +CONFIG_NETFILTER=y +# CONFIG_NETFILTER_DEBUG is not set +CONFIG_BRIDGE_NETFILTER=y +# CONFIG_NETFILTER_NETLINK is not set + +# +# IP: Netfilter Configuration +# +CONFIG_IP_NF_CONNTRACK=m +# CONFIG_IP_NF_CT_ACCT is not set +# CONFIG_IP_NF_CONNTRACK_MARK is not set +# CONFIG_IP_NF_CONNTRACK_EVENTS is not set +# CONFIG_IP_NF_CT_PROTO_SCTP is not set +CONFIG_IP_NF_FTP=m +CONFIG_IP_NF_IRC=m +# CONFIG_IP_NF_NETBIOS_NS is not set +# CONFIG_IP_NF_TFTP is not set +# CONFIG_IP_NF_AMANDA is not set +CONFIG_IP_NF_QUEUE=m +CONFIG_IP_NF_IPTABLES=m +CONFIG_IP_NF_MATCH_LIMIT=m +# CONFIG_IP_NF_MATCH_IPRANGE is not set +CONFIG_IP_NF_MATCH_MAC=m +# CONFIG_IP_NF_MATCH_PKTTYPE is not set +CONFIG_IP_NF_MATCH_MARK=m +CONFIG_IP_NF_MATCH_MULTIPORT=m +CONFIG_IP_NF_MATCH_TOS=m +# CONFIG_IP_NF_MATCH_RECENT is not set +# CONFIG_IP_NF_MATCH_ECN is not set +# CONFIG_IP_NF_MATCH_DSCP is not set +CONFIG_IP_NF_MATCH_AH_ESP=m +CONFIG_IP_NF_MATCH_LENGTH=m +CONFIG_IP_NF_MATCH_TTL=m +CONFIG_IP_NF_MATCH_TCPMSS=m +# CONFIG_IP_NF_MATCH_HELPER is not set +CONFIG_IP_NF_MATCH_STATE=m +# CONFIG_IP_NF_MATCH_CONNTRACK is not set +CONFIG_IP_NF_MATCH_OWNER=m +# CONFIG_IP_NF_MATCH_PHYSDEV is not set +# CONFIG_IP_NF_MATCH_ADDRTYPE is not set +# CONFIG_IP_NF_MATCH_REALM is not set +# CONFIG_IP_NF_MATCH_SCTP is not set +# CONFIG_IP_NF_MATCH_DCCP is not set +# CONFIG_IP_NF_MATCH_COMMENT is not set +# CONFIG_IP_NF_MATCH_HASHLIMIT is not set +# CONFIG_IP_NF_MATCH_STRING is not set +CONFIG_IP_NF_FILTER=m +CONFIG_IP_NF_TARGET_REJECT=m +CONFIG_IP_NF_TARGET_LOG=m +CONFIG_IP_NF_TARGET_ULOG=m +CONFIG_IP_NF_TARGET_TCPMSS=m +CONFIG_IP_NF_NAT=m +CONFIG_IP_NF_NAT_NEEDED=y +CONFIG_IP_NF_TARGET_MASQUERADE=m +CONFIG_IP_NF_TARGET_REDIRECT=m +# CONFIG_IP_NF_TARGET_NETMAP is not set +# CONFIG_IP_NF_TARGET_SAME is not set +CONFIG_IP_NF_NAT_SNMP_BASIC=m +CONFIG_IP_NF_NAT_IRC=m +CONFIG_IP_NF_NAT_FTP=m +CONFIG_IP_NF_MANGLE=m +CONFIG_IP_NF_TARGET_TOS=m +# CONFIG_IP_NF_TARGET_ECN is not set +# CONFIG_IP_NF_TARGET_DSCP is not set +CONFIG_IP_NF_TARGET_MARK=m +# CONFIG_IP_NF_TARGET_CLASSIFY is not set +# CONFIG_IP_NF_TARGET_TTL is not set +# CONFIG_IP_NF_RAW is not set +CONFIG_IP_NF_ARPTABLES=m +CONFIG_IP_NF_ARPFILTER=m +# CONFIG_IP_NF_ARP_MANGLE is not set + +# +# Bridge: Netfilter Configuration +# +# CONFIG_BRIDGE_NF_EBTABLES is not set + +# +# DCCP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_DCCP is not set + +# +# SCTP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_SCTP is not set +CONFIG_ATM=y +CONFIG_ATM_CLIP=y +# CONFIG_ATM_CLIP_NO_ICMP is not set +CONFIG_ATM_LANE=m +CONFIG_ATM_MPOA=m +CONFIG_ATM_BR2684=m +# CONFIG_ATM_BR2684_IPFILTER is not set +CONFIG_BRIDGE=m +CONFIG_VLAN_8021Q=m +# CONFIG_DECNET is not set +CONFIG_LLC=m +# CONFIG_LLC2 is not set +CONFIG_IPX=m +# CONFIG_IPX_INTERN is not set +CONFIG_ATALK=m +CONFIG_DEV_APPLETALK=y +CONFIG_IPDDP=m +CONFIG_IPDDP_ENCAP=y +CONFIG_IPDDP_DECAP=y +CONFIG_X25=m +CONFIG_LAPB=m +# CONFIG_NET_DIVERT is not set +CONFIG_ECONET=m +CONFIG_ECONET_AUNUDP=y +CONFIG_ECONET_NATIVE=y +CONFIG_WAN_ROUTER=m +CONFIG_NET_SCHED=y +CONFIG_NET_SCH_CLK_JIFFIES=y +# CONFIG_NET_SCH_CLK_GETTIMEOFDAY is not set +# CONFIG_NET_SCH_CLK_CPU is not set +CONFIG_NET_SCH_CBQ=m +CONFIG_NET_SCH_HTB=m +# CONFIG_NET_SCH_HFSC is not set +# CONFIG_NET_SCH_ATM is not set +CONFIG_NET_SCH_PRIO=m +CONFIG_NET_SCH_RED=m +CONFIG_NET_SCH_SFQ=m +CONFIG_NET_SCH_TEQL=m +CONFIG_NET_SCH_TBF=m +CONFIG_NET_SCH_GRED=m +CONFIG_NET_SCH_DSMARK=m +# CONFIG_NET_SCH_NETEM is not set +CONFIG_NET_SCH_INGRESS=m +CONFIG_NET_QOS=y +CONFIG_NET_ESTIMATOR=y +CONFIG_NET_CLS=y +# CONFIG_NET_CLS_BASIC is not set +CONFIG_NET_CLS_TCINDEX=m +CONFIG_NET_CLS_ROUTE4=m +CONFIG_NET_CLS_ROUTE=y +CONFIG_NET_CLS_FW=m +CONFIG_NET_CLS_U32=m +# CONFIG_CLS_U32_PERF is not set +# CONFIG_NET_CLS_IND is not set +# CONFIG_CLS_U32_MARK is not set +CONFIG_NET_CLS_RSVP=m +CONFIG_NET_CLS_RSVP6=m +# CONFIG_NET_EMATCH is not set +# CONFIG_NET_CLS_ACT is not set +CONFIG_NET_CLS_POLICE=y + +# +# Network testing +# +CONFIG_NET_PKTGEN=m +# CONFIG_HAMRADIO is not set +# CONFIG_IRDA is not set +# CONFIG_BT is not set +# CONFIG_IEEE80211 is not set + # # Device Drivers # @@ -244,6 +494,7 @@ CONFIG_MTD_COMPLEX_MAPPINGS=y CONFIG_MTD_IXP4XX=y # CONFIG_MTD_EDB7312 is not set # CONFIG_MTD_PCI is not set +# CONFIG_MTD_PLATRAM is not set # # Self-contained MTD device drivers @@ -283,7 +534,6 @@ CONFIG_MTD_NAND_IDS=m # # Block devices # -# CONFIG_BLK_DEV_FD is not set # CONFIG_BLK_CPQ_DA is not set # CONFIG_BLK_CPQ_CISS_DA is not set # CONFIG_BLK_DEV_DAC960 is not set @@ -297,7 +547,6 @@ CONFIG_BLK_DEV_RAM=y CONFIG_BLK_DEV_RAM_COUNT=16 CONFIG_BLK_DEV_RAM_SIZE=8192 CONFIG_BLK_DEV_INITRD=y -CONFIG_INITRAMFS_SOURCE="" # CONFIG_CDROM_PKTCDVD is not set # @@ -351,6 +600,7 @@ CONFIG_BLK_DEV_CMD64X=y CONFIG_BLK_DEV_HPT366=y # CONFIG_BLK_DEV_SC1200 is not set # CONFIG_BLK_DEV_PIIX is not set +# CONFIG_BLK_DEV_IT821X is not set # CONFIG_BLK_DEV_NS87415 is not set # CONFIG_BLK_DEV_PDC202XX_OLD is not set CONFIG_BLK_DEV_PDC202XX_NEW=y @@ -369,6 +619,7 @@ CONFIG_BLK_DEV_IDEDMA=y # # SCSI device support # +# CONFIG_RAID_ATTRS is not set # CONFIG_SCSI is not set # @@ -379,6 +630,7 @@ CONFIG_BLK_DEV_IDEDMA=y # # Fusion MPT device support # +# CONFIG_FUSION is not set # # IEEE 1394 (FireWire) support @@ -391,241 +643,24 @@ CONFIG_BLK_DEV_IDEDMA=y # CONFIG_I2O is not set # -# Networking support +# Network device support # -CONFIG_NET=y - -# -# Networking options -# -CONFIG_PACKET=m -CONFIG_PACKET_MMAP=y -CONFIG_NETLINK_DEV=m -CONFIG_UNIX=y -# CONFIG_NET_KEY is not set -CONFIG_INET=y -CONFIG_IP_MULTICAST=y -CONFIG_IP_ADVANCED_ROUTER=y -CONFIG_IP_MULTIPLE_TABLES=y -CONFIG_IP_ROUTE_FWMARK=y -CONFIG_IP_ROUTE_MULTIPATH=y -# CONFIG_IP_ROUTE_MULTIPATH_CACHED is not set -CONFIG_IP_ROUTE_VERBOSE=y -CONFIG_IP_PNP=y -CONFIG_IP_PNP_DHCP=y -CONFIG_IP_PNP_BOOTP=y -# CONFIG_IP_PNP_RARP is not set -# CONFIG_NET_IPIP is not set -CONFIG_NET_IPGRE=m -CONFIG_NET_IPGRE_BROADCAST=y -CONFIG_IP_MROUTE=y -CONFIG_IP_PIMSM_V1=y -CONFIG_IP_PIMSM_V2=y -# CONFIG_ARPD is not set -CONFIG_SYN_COOKIES=y -# CONFIG_INET_AH is not set -# CONFIG_INET_ESP is not set -# CONFIG_INET_IPCOMP is not set -CONFIG_INET_TUNNEL=m -# CONFIG_IP_TCPDIAG is not set -# CONFIG_IP_TCPDIAG_IPV6 is not set - -# -# IP: Virtual Server Configuration -# -CONFIG_IP_VS=m -CONFIG_IP_VS_DEBUG=y -CONFIG_IP_VS_TAB_BITS=12 - -# -# IPVS transport protocol load balancing support -# -# CONFIG_IP_VS_PROTO_TCP is not set -# CONFIG_IP_VS_PROTO_UDP is not set -# CONFIG_IP_VS_PROTO_ESP is not set -# CONFIG_IP_VS_PROTO_AH is not set - -# -# IPVS scheduler -# -CONFIG_IP_VS_RR=m -CONFIG_IP_VS_WRR=m -CONFIG_IP_VS_LC=m -CONFIG_IP_VS_WLC=m -CONFIG_IP_VS_LBLC=m -CONFIG_IP_VS_LBLCR=m -CONFIG_IP_VS_DH=m -CONFIG_IP_VS_SH=m -# CONFIG_IP_VS_SED is not set -# CONFIG_IP_VS_NQ is not set - -# -# IPVS application helper -# -# CONFIG_IPV6 is not set -CONFIG_NETFILTER=y -# CONFIG_NETFILTER_DEBUG is not set -CONFIG_BRIDGE_NETFILTER=y - -# -# IP: Netfilter Configuration -# -CONFIG_IP_NF_CONNTRACK=m -# CONFIG_IP_NF_CT_ACCT is not set -# CONFIG_IP_NF_CONNTRACK_MARK is not set -# CONFIG_IP_NF_CT_PROTO_SCTP is not set -CONFIG_IP_NF_FTP=m -CONFIG_IP_NF_IRC=m -# CONFIG_IP_NF_TFTP is not set -# CONFIG_IP_NF_AMANDA is not set -CONFIG_IP_NF_QUEUE=m -CONFIG_IP_NF_IPTABLES=m -CONFIG_IP_NF_MATCH_LIMIT=m -# CONFIG_IP_NF_MATCH_IPRANGE is not set -CONFIG_IP_NF_MATCH_MAC=m -# CONFIG_IP_NF_MATCH_PKTTYPE is not set -CONFIG_IP_NF_MATCH_MARK=m -CONFIG_IP_NF_MATCH_MULTIPORT=m -CONFIG_IP_NF_MATCH_TOS=m -# CONFIG_IP_NF_MATCH_RECENT is not set -# CONFIG_IP_NF_MATCH_ECN is not set -# CONFIG_IP_NF_MATCH_DSCP is not set -CONFIG_IP_NF_MATCH_AH_ESP=m -CONFIG_IP_NF_MATCH_LENGTH=m -CONFIG_IP_NF_MATCH_TTL=m -CONFIG_IP_NF_MATCH_TCPMSS=m -# CONFIG_IP_NF_MATCH_HELPER is not set -CONFIG_IP_NF_MATCH_STATE=m -# CONFIG_IP_NF_MATCH_CONNTRACK is not set -CONFIG_IP_NF_MATCH_OWNER=m -# CONFIG_IP_NF_MATCH_PHYSDEV is not set -# CONFIG_IP_NF_MATCH_ADDRTYPE is not set -# CONFIG_IP_NF_MATCH_REALM is not set -# CONFIG_IP_NF_MATCH_SCTP is not set -# CONFIG_IP_NF_MATCH_COMMENT is not set -# CONFIG_IP_NF_MATCH_HASHLIMIT is not set -CONFIG_IP_NF_FILTER=m -CONFIG_IP_NF_TARGET_REJECT=m -CONFIG_IP_NF_TARGET_LOG=m -CONFIG_IP_NF_TARGET_ULOG=m -CONFIG_IP_NF_TARGET_TCPMSS=m -CONFIG_IP_NF_NAT=m -CONFIG_IP_NF_NAT_NEEDED=y -CONFIG_IP_NF_TARGET_MASQUERADE=m -CONFIG_IP_NF_TARGET_REDIRECT=m -# CONFIG_IP_NF_TARGET_NETMAP is not set -# CONFIG_IP_NF_TARGET_SAME is not set -CONFIG_IP_NF_NAT_SNMP_BASIC=m -CONFIG_IP_NF_NAT_IRC=m -CONFIG_IP_NF_NAT_FTP=m -CONFIG_IP_NF_MANGLE=m -CONFIG_IP_NF_TARGET_TOS=m -# CONFIG_IP_NF_TARGET_ECN is not set -# CONFIG_IP_NF_TARGET_DSCP is not set -CONFIG_IP_NF_TARGET_MARK=m -# CONFIG_IP_NF_TARGET_CLASSIFY is not set -# CONFIG_IP_NF_RAW is not set -CONFIG_IP_NF_ARPTABLES=m -CONFIG_IP_NF_ARPFILTER=m -# CONFIG_IP_NF_ARP_MANGLE is not set - -# -# Bridge: Netfilter Configuration -# -# CONFIG_BRIDGE_NF_EBTABLES is not set -CONFIG_XFRM=y -# CONFIG_XFRM_USER is not set - -# -# SCTP Configuration (EXPERIMENTAL) -# -# CONFIG_IP_SCTP is not set -CONFIG_ATM=y -CONFIG_ATM_CLIP=y -# CONFIG_ATM_CLIP_NO_ICMP is not set -CONFIG_ATM_LANE=m -CONFIG_ATM_MPOA=m -CONFIG_ATM_BR2684=m -# CONFIG_ATM_BR2684_IPFILTER is not set -CONFIG_BRIDGE=m -CONFIG_VLAN_8021Q=m -# CONFIG_DECNET is not set -CONFIG_LLC=m -# CONFIG_LLC2 is not set -CONFIG_IPX=m -# CONFIG_IPX_INTERN is not set -CONFIG_ATALK=m -CONFIG_DEV_APPLETALK=y -CONFIG_IPDDP=m -CONFIG_IPDDP_ENCAP=y -CONFIG_IPDDP_DECAP=y -CONFIG_X25=m -CONFIG_LAPB=m -# CONFIG_NET_DIVERT is not set -CONFIG_ECONET=m -CONFIG_ECONET_AUNUDP=y -CONFIG_ECONET_NATIVE=y -CONFIG_WAN_ROUTER=m - -# -# QoS and/or fair queueing -# -CONFIG_NET_SCHED=y -CONFIG_NET_SCH_CLK_JIFFIES=y -# CONFIG_NET_SCH_CLK_GETTIMEOFDAY is not set -# CONFIG_NET_SCH_CLK_CPU is not set -CONFIG_NET_SCH_CBQ=m -CONFIG_NET_SCH_HTB=m -# CONFIG_NET_SCH_HFSC is not set -# CONFIG_NET_SCH_ATM is not set -CONFIG_NET_SCH_PRIO=m -CONFIG_NET_SCH_RED=m -CONFIG_NET_SCH_SFQ=m -CONFIG_NET_SCH_TEQL=m -CONFIG_NET_SCH_TBF=m -CONFIG_NET_SCH_GRED=m -CONFIG_NET_SCH_DSMARK=m -# CONFIG_NET_SCH_NETEM is not set -CONFIG_NET_SCH_INGRESS=m -CONFIG_NET_QOS=y -CONFIG_NET_ESTIMATOR=y -CONFIG_NET_CLS=y -# CONFIG_NET_CLS_BASIC is not set -CONFIG_NET_CLS_TCINDEX=m -CONFIG_NET_CLS_ROUTE4=m -CONFIG_NET_CLS_ROUTE=y -CONFIG_NET_CLS_FW=m -CONFIG_NET_CLS_U32=m -# CONFIG_CLS_U32_PERF is not set -# CONFIG_NET_CLS_IND is not set -# CONFIG_CLS_U32_MARK is not set -CONFIG_NET_CLS_RSVP=m -CONFIG_NET_CLS_RSVP6=m -# CONFIG_NET_EMATCH is not set -# CONFIG_NET_CLS_ACT is not set -CONFIG_NET_CLS_POLICE=y - -# -# Network testing -# -CONFIG_NET_PKTGEN=m -# CONFIG_NETPOLL is not set -# CONFIG_NET_POLL_CONTROLLER is not set -# CONFIG_HAMRADIO is not set -# CONFIG_IRDA is not set -# CONFIG_BT is not set CONFIG_NETDEVICES=y CONFIG_DUMMY=y # CONFIG_BONDING is not set # CONFIG_EQUALIZER is not set # CONFIG_TUN is not set -# CONFIG_ETHERTAP is not set # # ARCnet devices # # CONFIG_ARCNET is not set +# +# PHY device support +# +# CONFIG_PHYLIB is not set + # # Ethernet (10 or 100Mbit) # @@ -635,6 +670,7 @@ CONFIG_MII=y # CONFIG_SUNGEM is not set # CONFIG_NET_VENDOR_3COM is not set # CONFIG_SMC91X is not set +# CONFIG_DM9000 is not set # # Tulip family network device support @@ -671,13 +707,17 @@ CONFIG_EEPRO100=y # CONFIG_HAMACHI is not set # CONFIG_YELLOWFIN is not set # CONFIG_R8169 is not set +# CONFIG_SIS190 is not set +# CONFIG_SKGE is not set # CONFIG_SK98LIN is not set # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set +# CONFIG_BNX2 is not set # # Ethernet (10000 Mbit) # +# CONFIG_CHELSIO_T1 is not set # CONFIG_IXGB is not set # CONFIG_S2IO is not set @@ -702,6 +742,7 @@ CONFIG_NET_RADIO=y CONFIG_HERMES=y # CONFIG_PLX_HERMES is not set # CONFIG_TMD_HERMES is not set +# CONFIG_NORTEL_HERMES is not set CONFIG_PCI_HERMES=y # CONFIG_ATMEL is not set @@ -709,6 +750,7 @@ CONFIG_PCI_HERMES=y # Prism GT/Duette 802.11(a/b/g) PCI/Cardbus support # # CONFIG_PRISM54 is not set +# CONFIG_HOSTAP is not set CONFIG_NET_WIRELESS=y # @@ -758,6 +800,8 @@ CONFIG_ATM_TCP=m # CONFIG_SLIP is not set # CONFIG_SHAPER is not set # CONFIG_NETCONSOLE is not set +# CONFIG_NETPOLL is not set +# CONFIG_NET_POLL_CONTROLLER is not set # # ISDN subsystem @@ -795,7 +839,6 @@ CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 # # CONFIG_SERIO is not set # CONFIG_GAMEPORT is not set -CONFIG_SOUND_GAMEPORT=y # # Character devices @@ -816,6 +859,7 @@ CONFIG_SERIAL_8250_NR_UARTS=2 # CONFIG_SERIAL_CORE=y CONFIG_SERIAL_CORE_CONSOLE=y +# CONFIG_SERIAL_JSM is not set CONFIG_UNIX98_PTYS=y CONFIG_LEGACY_PTYS=y CONFIG_LEGACY_PTY_COUNT=256 @@ -882,12 +926,11 @@ CONFIG_I2C_ALGOBIT=y # CONFIG_I2C_AMD8111 is not set # CONFIG_I2C_I801 is not set # CONFIG_I2C_I810 is not set +# CONFIG_I2C_PIIX4 is not set # CONFIG_I2C_IOP3XX is not set -# CONFIG_I2C_ISA is not set CONFIG_I2C_IXP4XX=y # CONFIG_I2C_NFORCE2 is not set # CONFIG_I2C_PARPORT_LIGHT is not set -# CONFIG_I2C_PIIX4 is not set # CONFIG_I2C_PROSAVAGE is not set # CONFIG_I2C_SAVAGE4 is not set # CONFIG_SCx200_ACB is not set @@ -901,14 +944,33 @@ CONFIG_I2C_IXP4XX=y # CONFIG_I2C_PCA_ISA is not set # -# Hardware Sensors Chip support +# Miscellaneous I2C Chip support # -CONFIG_I2C_SENSOR=y +# CONFIG_SENSORS_DS1337 is not set +# CONFIG_SENSORS_DS1374 is not set +CONFIG_SENSORS_EEPROM=y +# CONFIG_SENSORS_PCF8574 is not set +# CONFIG_SENSORS_PCA9539 is not set +# CONFIG_SENSORS_PCF8591 is not set +# CONFIG_SENSORS_RTC8564 is not set +# CONFIG_SENSORS_MAX6875 is not set +# CONFIG_I2C_DEBUG_CORE is not set +# CONFIG_I2C_DEBUG_ALGO is not set +# CONFIG_I2C_DEBUG_BUS is not set +# CONFIG_I2C_DEBUG_CHIP is not set + +# +# Hardware Monitoring support +# +CONFIG_HWMON=y +# CONFIG_HWMON_VID is not set # CONFIG_SENSORS_ADM1021 is not set # CONFIG_SENSORS_ADM1025 is not set # CONFIG_SENSORS_ADM1026 is not set # CONFIG_SENSORS_ADM1031 is not set +# CONFIG_SENSORS_ADM9240 is not set # CONFIG_SENSORS_ASB100 is not set +# CONFIG_SENSORS_ATXP1 is not set # CONFIG_SENSORS_DS1621 is not set # CONFIG_SENSORS_FSCHER is not set # CONFIG_SENSORS_FSCPOS is not set @@ -924,32 +986,28 @@ CONFIG_I2C_SENSOR=y # CONFIG_SENSORS_LM85 is not set # CONFIG_SENSORS_LM87 is not set # CONFIG_SENSORS_LM90 is not set +# CONFIG_SENSORS_LM92 is not set # CONFIG_SENSORS_MAX1619 is not set # CONFIG_SENSORS_PC87360 is not set -# CONFIG_SENSORS_SMSC47B397 is not set # CONFIG_SENSORS_SIS5595 is not set # CONFIG_SENSORS_SMSC47M1 is not set +# CONFIG_SENSORS_SMSC47B397 is not set # CONFIG_SENSORS_VIA686A is not set # CONFIG_SENSORS_W83781D is not set +# CONFIG_SENSORS_W83792D is not set # CONFIG_SENSORS_W83L785TS is not set # CONFIG_SENSORS_W83627HF is not set - -# -# Other I2C Chip support -# -CONFIG_SENSORS_EEPROM=y -# CONFIG_SENSORS_PCF8574 is not set -# CONFIG_SENSORS_PCF8591 is not set -# CONFIG_SENSORS_RTC8564 is not set -# CONFIG_I2C_DEBUG_CORE is not set -# CONFIG_I2C_DEBUG_ALGO is not set -# CONFIG_I2C_DEBUG_BUS is not set -# CONFIG_I2C_DEBUG_CHIP is not set +# CONFIG_SENSORS_W83627EHF is not set +# CONFIG_HWMON_DEBUG_CHIP is not set # # Misc devices # +# +# Multimedia Capabilities Port drivers +# + # # Multimedia devices # @@ -994,6 +1052,7 @@ CONFIG_EXT2_FS=y CONFIG_EXT2_FS_XATTR=y CONFIG_EXT2_FS_POSIX_ACL=y # CONFIG_EXT2_FS_SECURITY is not set +# CONFIG_EXT2_FS_XIP is not set CONFIG_EXT3_FS=y CONFIG_EXT3_FS_XATTR=y CONFIG_EXT3_FS_POSIX_ACL=y @@ -1004,17 +1063,15 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set CONFIG_FS_POSIX_ACL=y - -# -# XFS support -# # CONFIG_XFS_FS is not set # CONFIG_MINIX_FS is not set # CONFIG_ROMFS_FS is not set +CONFIG_INOTIFY=y # CONFIG_QUOTA is not set CONFIG_DNOTIFY=y # CONFIG_AUTOFS_FS is not set # CONFIG_AUTOFS4_FS is not set +# CONFIG_FUSE_FS is not set # # CD-ROM/DVD Filesystems @@ -1034,12 +1091,10 @@ CONFIG_DNOTIFY=y # CONFIG_PROC_FS=y CONFIG_SYSFS=y -# CONFIG_DEVFS_FS is not set -# CONFIG_DEVPTS_FS_XATTR is not set CONFIG_TMPFS=y -# CONFIG_TMPFS_XATTR is not set # CONFIG_HUGETLB_PAGE is not set CONFIG_RAMFS=y +# CONFIG_RELAYFS_FS is not set # # Miscellaneous filesystems @@ -1054,8 +1109,7 @@ CONFIG_RAMFS=y # CONFIG_JFFS_FS is not set CONFIG_JFFS2_FS=y CONFIG_JFFS2_FS_DEBUG=0 -# CONFIG_JFFS2_FS_NAND is not set -# CONFIG_JFFS2_FS_NOR_ECC is not set +CONFIG_JFFS2_FS_WRITEBUFFER=y # CONFIG_JFFS2_COMPRESSION_OPTIONS is not set CONFIG_JFFS2_ZLIB=y CONFIG_JFFS2_RTIME=y @@ -1072,12 +1126,14 @@ CONFIG_JFFS2_RTIME=y # CONFIG_NFS_FS=y CONFIG_NFS_V3=y +# CONFIG_NFS_V3_ACL is not set # CONFIG_NFS_V4 is not set # CONFIG_NFS_DIRECTIO is not set # CONFIG_NFSD is not set CONFIG_ROOT_NFS=y CONFIG_LOCKD=y CONFIG_LOCKD_V4=y +CONFIG_NFS_COMMON=y CONFIG_SUNRPC=y # CONFIG_RPCSEC_GSS_KRB5 is not set # CONFIG_RPCSEC_GSS_SPKM3 is not set @@ -1086,6 +1142,7 @@ CONFIG_SUNRPC=y # CONFIG_NCP_FS is not set # CONFIG_CODA_FS is not set # CONFIG_AFS_FS is not set +# CONFIG_9P_FS is not set # # Partition Types @@ -1124,6 +1181,7 @@ CONFIG_MSDOS_PARTITION=y CONFIG_DEBUG_KERNEL=y CONFIG_MAGIC_SYSRQ=y CONFIG_LOG_BUF_SHIFT=14 +CONFIG_DETECT_SOFTLOCKUP=y # CONFIG_SCHEDSTATS is not set # CONFIG_DEBUG_SLAB is not set # CONFIG_DEBUG_SPINLOCK is not set @@ -1158,6 +1216,7 @@ CONFIG_DEBUG_LL=y # Library routines # # CONFIG_CRC_CCITT is not set +# CONFIG_CRC16 is not set CONFIG_CRC32=y # CONFIG_LIBCRC32C is not set CONFIG_ZLIB_INFLATE=y From 63c47c286d062d93e0501d60797274c84a587e97 Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Mon, 26 Sep 2005 13:01:03 -0700 Subject: [PATCH 148/352] [IB] uverbs: Close some exploitable races Al Viro pointed out that the current IB userspace verbs interface allows userspace to cause mischief by closing file descriptors before we're ready, or issuing the same command twice at the same time. This patch closes those races, and fixes other obvious problems such as a module reference leak. Some other interface bogosities will require an ABI change to fix properly, so I'm deferring those fixes until 2.6.15. Signed-off-by: Roland Dreier --- drivers/infiniband/core/uverbs.h | 1 + drivers/infiniband/core/uverbs_cmd.c | 120 ++++++++++++++------------ drivers/infiniband/core/uverbs_main.c | 27 ++++-- include/rdma/ib_verbs.h | 1 - 4 files changed, 86 insertions(+), 63 deletions(-) diff --git a/drivers/infiniband/core/uverbs.h b/drivers/infiniband/core/uverbs.h index b1897bed14ad..cc124344dd2c 100644 --- a/drivers/infiniband/core/uverbs.h +++ b/drivers/infiniband/core/uverbs.h @@ -69,6 +69,7 @@ struct ib_uverbs_event_file { struct ib_uverbs_file { struct kref ref; + struct semaphore mutex; struct ib_uverbs_device *device; struct ib_ucontext *ucontext; struct ib_event_handler event_handler; diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c index e91ebde46481..562445165d2b 100644 --- a/drivers/infiniband/core/uverbs_cmd.c +++ b/drivers/infiniband/core/uverbs_cmd.c @@ -76,8 +76,9 @@ ssize_t ib_uverbs_get_context(struct ib_uverbs_file *file, struct ib_uverbs_get_context_resp resp; struct ib_udata udata; struct ib_device *ibdev = file->device->ib_dev; + struct ib_ucontext *ucontext; int i; - int ret = in_len; + int ret; if (out_len < sizeof resp) return -ENOSPC; @@ -85,45 +86,56 @@ ssize_t ib_uverbs_get_context(struct ib_uverbs_file *file, if (copy_from_user(&cmd, buf, sizeof cmd)) return -EFAULT; + down(&file->mutex); + + if (file->ucontext) { + ret = -EINVAL; + goto err; + } + INIT_UDATA(&udata, buf + sizeof cmd, (unsigned long) cmd.response + sizeof resp, in_len - sizeof cmd, out_len - sizeof resp); - file->ucontext = ibdev->alloc_ucontext(ibdev, &udata); - if (IS_ERR(file->ucontext)) { - ret = PTR_ERR(file->ucontext); - file->ucontext = NULL; - return ret; - } + ucontext = ibdev->alloc_ucontext(ibdev, &udata); + if (IS_ERR(ucontext)) + return PTR_ERR(file->ucontext); - file->ucontext->device = ibdev; - INIT_LIST_HEAD(&file->ucontext->pd_list); - INIT_LIST_HEAD(&file->ucontext->mr_list); - INIT_LIST_HEAD(&file->ucontext->mw_list); - INIT_LIST_HEAD(&file->ucontext->cq_list); - INIT_LIST_HEAD(&file->ucontext->qp_list); - INIT_LIST_HEAD(&file->ucontext->srq_list); - INIT_LIST_HEAD(&file->ucontext->ah_list); - spin_lock_init(&file->ucontext->lock); + ucontext->device = ibdev; + INIT_LIST_HEAD(&ucontext->pd_list); + INIT_LIST_HEAD(&ucontext->mr_list); + INIT_LIST_HEAD(&ucontext->mw_list); + INIT_LIST_HEAD(&ucontext->cq_list); + INIT_LIST_HEAD(&ucontext->qp_list); + INIT_LIST_HEAD(&ucontext->srq_list); + INIT_LIST_HEAD(&ucontext->ah_list); resp.async_fd = file->async_file.fd; for (i = 0; i < file->device->num_comp; ++i) if (copy_to_user((void __user *) (unsigned long) cmd.cq_fd_tab + i * sizeof (__u32), - &file->comp_file[i].fd, sizeof (__u32))) - goto err; + &file->comp_file[i].fd, sizeof (__u32))) { + ret = -EFAULT; + goto err_free; + } if (copy_to_user((void __user *) (unsigned long) cmd.response, - &resp, sizeof resp)) - goto err; + &resp, sizeof resp)) { + ret = -EFAULT; + goto err_free; + } + + file->ucontext = ucontext; + up(&file->mutex); return in_len; -err: - ibdev->dealloc_ucontext(file->ucontext); - file->ucontext = NULL; +err_free: + ibdev->dealloc_ucontext(ucontext); - return -EFAULT; +err: + up(&file->mutex); + return ret; } ssize_t ib_uverbs_query_device(struct ib_uverbs_file *file, @@ -352,9 +364,9 @@ retry: if (ret) goto err_pd; - spin_lock_irq(&file->ucontext->lock); + down(&file->mutex); list_add_tail(&uobj->list, &file->ucontext->pd_list); - spin_unlock_irq(&file->ucontext->lock); + up(&file->mutex); memset(&resp, 0, sizeof resp); resp.pd_handle = uobj->id; @@ -368,9 +380,9 @@ retry: return in_len; err_list: - spin_lock_irq(&file->ucontext->lock); + down(&file->mutex); list_del(&uobj->list); - spin_unlock_irq(&file->ucontext->lock); + up(&file->mutex); down(&ib_uverbs_idr_mutex); idr_remove(&ib_uverbs_pd_idr, uobj->id); @@ -410,9 +422,9 @@ ssize_t ib_uverbs_dealloc_pd(struct ib_uverbs_file *file, idr_remove(&ib_uverbs_pd_idr, cmd.pd_handle); - spin_lock_irq(&file->ucontext->lock); + down(&file->mutex); list_del(&uobj->list); - spin_unlock_irq(&file->ucontext->lock); + up(&file->mutex); kfree(uobj); @@ -512,9 +524,9 @@ retry: resp.mr_handle = obj->uobject.id; - spin_lock_irq(&file->ucontext->lock); + down(&file->mutex); list_add_tail(&obj->uobject.list, &file->ucontext->mr_list); - spin_unlock_irq(&file->ucontext->lock); + up(&file->mutex); if (copy_to_user((void __user *) (unsigned long) cmd.response, &resp, sizeof resp)) { @@ -527,9 +539,9 @@ retry: return in_len; err_list: - spin_lock_irq(&file->ucontext->lock); + down(&file->mutex); list_del(&obj->uobject.list); - spin_unlock_irq(&file->ucontext->lock); + up(&file->mutex); err_unreg: ib_dereg_mr(mr); @@ -570,9 +582,9 @@ ssize_t ib_uverbs_dereg_mr(struct ib_uverbs_file *file, idr_remove(&ib_uverbs_mr_idr, cmd.mr_handle); - spin_lock_irq(&file->ucontext->lock); + down(&file->mutex); list_del(&memobj->uobject.list); - spin_unlock_irq(&file->ucontext->lock); + up(&file->mutex); ib_umem_release(file->device->ib_dev, &memobj->umem); kfree(memobj); @@ -647,9 +659,9 @@ retry: if (ret) goto err_cq; - spin_lock_irq(&file->ucontext->lock); + down(&file->mutex); list_add_tail(&uobj->uobject.list, &file->ucontext->cq_list); - spin_unlock_irq(&file->ucontext->lock); + up(&file->mutex); memset(&resp, 0, sizeof resp); resp.cq_handle = uobj->uobject.id; @@ -664,9 +676,9 @@ retry: return in_len; err_list: - spin_lock_irq(&file->ucontext->lock); + down(&file->mutex); list_del(&uobj->uobject.list); - spin_unlock_irq(&file->ucontext->lock); + up(&file->mutex); down(&ib_uverbs_idr_mutex); idr_remove(&ib_uverbs_cq_idr, uobj->uobject.id); @@ -712,9 +724,9 @@ ssize_t ib_uverbs_destroy_cq(struct ib_uverbs_file *file, idr_remove(&ib_uverbs_cq_idr, cmd.cq_handle); - spin_lock_irq(&file->ucontext->lock); + down(&file->mutex); list_del(&uobj->uobject.list); - spin_unlock_irq(&file->ucontext->lock); + up(&file->mutex); spin_lock_irq(&file->comp_file[0].lock); list_for_each_entry_safe(evt, tmp, &uobj->comp_list, obj_list) { @@ -847,9 +859,9 @@ retry: resp.qp_handle = uobj->uobject.id; - spin_lock_irq(&file->ucontext->lock); + down(&file->mutex); list_add_tail(&uobj->uobject.list, &file->ucontext->qp_list); - spin_unlock_irq(&file->ucontext->lock); + up(&file->mutex); if (copy_to_user((void __user *) (unsigned long) cmd.response, &resp, sizeof resp)) { @@ -862,9 +874,9 @@ retry: return in_len; err_list: - spin_lock_irq(&file->ucontext->lock); + down(&file->mutex); list_del(&uobj->uobject.list); - spin_unlock_irq(&file->ucontext->lock); + up(&file->mutex); err_destroy: ib_destroy_qp(qp); @@ -989,9 +1001,9 @@ ssize_t ib_uverbs_destroy_qp(struct ib_uverbs_file *file, idr_remove(&ib_uverbs_qp_idr, cmd.qp_handle); - spin_lock_irq(&file->ucontext->lock); + down(&file->mutex); list_del(&uobj->uobject.list); - spin_unlock_irq(&file->ucontext->lock); + up(&file->mutex); spin_lock_irq(&file->async_file.lock); list_for_each_entry_safe(evt, tmp, &uobj->event_list, obj_list) { @@ -1136,9 +1148,9 @@ retry: resp.srq_handle = uobj->uobject.id; - spin_lock_irq(&file->ucontext->lock); + down(&file->mutex); list_add_tail(&uobj->uobject.list, &file->ucontext->srq_list); - spin_unlock_irq(&file->ucontext->lock); + up(&file->mutex); if (copy_to_user((void __user *) (unsigned long) cmd.response, &resp, sizeof resp)) { @@ -1151,9 +1163,9 @@ retry: return in_len; err_list: - spin_lock_irq(&file->ucontext->lock); + down(&file->mutex); list_del(&uobj->uobject.list); - spin_unlock_irq(&file->ucontext->lock); + up(&file->mutex); err_destroy: ib_destroy_srq(srq); @@ -1227,9 +1239,9 @@ ssize_t ib_uverbs_destroy_srq(struct ib_uverbs_file *file, idr_remove(&ib_uverbs_srq_idr, cmd.srq_handle); - spin_lock_irq(&file->ucontext->lock); + down(&file->mutex); list_del(&uobj->uobject.list); - spin_unlock_irq(&file->ucontext->lock); + up(&file->mutex); spin_lock_irq(&file->async_file.lock); list_for_each_entry_safe(evt, tmp, &uobj->event_list, obj_list) { diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c index ce5bdb7af306..12511808de21 100644 --- a/drivers/infiniband/core/uverbs_main.c +++ b/drivers/infiniband/core/uverbs_main.c @@ -448,7 +448,9 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf, if (hdr.in_words * 4 != count) return -EINVAL; - if (hdr.command < 0 || hdr.command >= ARRAY_SIZE(uverbs_cmd_table)) + if (hdr.command < 0 || + hdr.command >= ARRAY_SIZE(uverbs_cmd_table) || + !uverbs_cmd_table[hdr.command]) return -EINVAL; if (!file->ucontext && @@ -484,27 +486,29 @@ static int ib_uverbs_open(struct inode *inode, struct file *filp) file = kmalloc(sizeof *file + (dev->num_comp - 1) * sizeof (struct ib_uverbs_event_file), GFP_KERNEL); - if (!file) - return -ENOMEM; + if (!file) { + ret = -ENOMEM; + goto err; + } file->device = dev; kref_init(&file->ref); + init_MUTEX(&file->mutex); file->ucontext = NULL; + kref_get(&file->ref); ret = ib_uverbs_event_init(&file->async_file, file); if (ret) - goto err; + goto err_kref; file->async_file.is_async = 1; - kref_get(&file->ref); - for (i = 0; i < dev->num_comp; ++i) { + kref_get(&file->ref); ret = ib_uverbs_event_init(&file->comp_file[i], file); if (ret) goto err_async; - kref_get(&file->ref); file->comp_file[i].is_async = 0; } @@ -524,9 +528,16 @@ err_async: ib_uverbs_event_release(&file->async_file); -err: +err_kref: + /* + * One extra kref_put() because we took a reference before the + * event file creation that failed and got us here. + */ + kref_put(&file->ref, ib_uverbs_release_file); kref_put(&file->ref, ib_uverbs_release_file); +err: + module_put(dev->ib_dev->owner); return ret; } diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index e16cf94870f2..e6f4c9e55df7 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -665,7 +665,6 @@ struct ib_ucontext { struct list_head qp_list; struct list_head srq_list; struct list_head ah_list; - spinlock_t lock; }; struct ib_uobject { From b9d717a7b413f227ebb2d61d9c118335f7292137 Mon Sep 17 00:00:00 2001 From: Alex Williamson Date: Mon, 26 Sep 2005 14:28:02 -0700 Subject: [PATCH 149/352] [NET]: Make sure ctl buffer is aligned properly in sys_sendmsg(). It's on the stack and declared as "unsigned char[]", but pointers and similar can be in here thus we need to give it an explicit alignment attribute. Signed-off-by: Alex Williamson Signed-off-by: Andrew Morton Signed-off-by: David S. Miller --- net/socket.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/net/socket.c b/net/socket.c index f9264472377f..dbd1a6851edd 100644 --- a/net/socket.c +++ b/net/socket.c @@ -1700,7 +1700,9 @@ asmlinkage long sys_sendmsg(int fd, struct msghdr __user *msg, unsigned flags) struct socket *sock; char address[MAX_SOCK_ADDR]; struct iovec iovstack[UIO_FASTIOV], *iov = iovstack; - unsigned char ctl[sizeof(struct cmsghdr) + 20]; /* 20 is size of ipv6_pktinfo */ + unsigned char ctl[sizeof(struct cmsghdr) + 20] + __attribute__ ((aligned (sizeof(__kernel_size_t)))); + /* 20 is size of ipv6_pktinfo */ unsigned char *ctl_buf = ctl; struct msghdr msg_sys; int err, ctl_len, iov_size, total_len; From acd042bb2de50d4e6fb969281a00cc8b8b71e46d Mon Sep 17 00:00:00 2001 From: Evgeniy Polyakov Date: Mon, 26 Sep 2005 15:06:50 -0700 Subject: [PATCH 150/352] [CONNECTOR]: async connector mode. If input message rate from userspace is too high, do not drop them, but try to deliver using work queue allocation. Failing there is some kind of congestion control. It also removes warn_on on this condition, which scares people. Signed-off-by: Evgeniy Polyakov Signed-off-by: David S. Miller --- drivers/connector/cn_queue.c | 32 +++++++++------ drivers/connector/connector.c | 74 ++++++++++++++++++----------------- include/linux/connector.h | 21 +++++++--- 3 files changed, 72 insertions(+), 55 deletions(-) diff --git a/drivers/connector/cn_queue.c b/drivers/connector/cn_queue.c index 966632182e2d..9f2f00d82917 100644 --- a/drivers/connector/cn_queue.c +++ b/drivers/connector/cn_queue.c @@ -31,16 +31,19 @@ #include #include -static void cn_queue_wrapper(void *data) +void cn_queue_wrapper(void *data) { - struct cn_callback_entry *cbq = data; + struct cn_callback_data *d = data; - cbq->cb->callback(cbq->cb->priv); - cbq->destruct_data(cbq->ddata); - cbq->ddata = NULL; + d->callback(d->callback_priv); + + d->destruct_data(d->ddata); + d->ddata = NULL; + + kfree(d->free); } -static struct cn_callback_entry *cn_queue_alloc_callback_entry(struct cn_callback *cb) +static struct cn_callback_entry *cn_queue_alloc_callback_entry(char *name, struct cb_id *id, void (*callback)(void *)) { struct cn_callback_entry *cbq; @@ -50,8 +53,11 @@ static struct cn_callback_entry *cn_queue_alloc_callback_entry(struct cn_callbac return NULL; } - cbq->cb = cb; - INIT_WORK(&cbq->work, &cn_queue_wrapper, cbq); + snprintf(cbq->id.name, sizeof(cbq->id.name), "%s", name); + memcpy(&cbq->id.id, id, sizeof(struct cb_id)); + cbq->data.callback = callback; + + INIT_WORK(&cbq->work, &cn_queue_wrapper, &cbq->data); return cbq; } @@ -68,12 +74,12 @@ int cn_cb_equal(struct cb_id *i1, struct cb_id *i2) return ((i1->idx == i2->idx) && (i1->val == i2->val)); } -int cn_queue_add_callback(struct cn_queue_dev *dev, struct cn_callback *cb) +int cn_queue_add_callback(struct cn_queue_dev *dev, char *name, struct cb_id *id, void (*callback)(void *)) { struct cn_callback_entry *cbq, *__cbq; int found = 0; - cbq = cn_queue_alloc_callback_entry(cb); + cbq = cn_queue_alloc_callback_entry(name, id, callback); if (!cbq) return -ENOMEM; @@ -82,7 +88,7 @@ int cn_queue_add_callback(struct cn_queue_dev *dev, struct cn_callback *cb) spin_lock_bh(&dev->queue_lock); list_for_each_entry(__cbq, &dev->queue_list, callback_entry) { - if (cn_cb_equal(&__cbq->cb->id, &cb->id)) { + if (cn_cb_equal(&__cbq->id.id, id)) { found = 1; break; } @@ -99,7 +105,7 @@ int cn_queue_add_callback(struct cn_queue_dev *dev, struct cn_callback *cb) cbq->nls = dev->nls; cbq->seq = 0; - cbq->group = cbq->cb->id.idx; + cbq->group = cbq->id.id.idx; return 0; } @@ -111,7 +117,7 @@ void cn_queue_del_callback(struct cn_queue_dev *dev, struct cb_id *id) spin_lock_bh(&dev->queue_lock); list_for_each_entry_safe(cbq, n, &dev->queue_list, callback_entry) { - if (cn_cb_equal(&cbq->cb->id, id)) { + if (cn_cb_equal(&cbq->id.id, id)) { list_del(&cbq->callback_entry); found = 1; break; diff --git a/drivers/connector/connector.c b/drivers/connector/connector.c index aaf6d468a8b9..bb0b3a8de14b 100644 --- a/drivers/connector/connector.c +++ b/drivers/connector/connector.c @@ -84,7 +84,7 @@ int cn_netlink_send(struct cn_msg *msg, u32 __group, int gfp_mask) spin_lock_bh(&dev->cbdev->queue_lock); list_for_each_entry(__cbq, &dev->cbdev->queue_list, callback_entry) { - if (cn_cb_equal(&__cbq->cb->id, &msg->id)) { + if (cn_cb_equal(&__cbq->id.id, &msg->id)) { found = 1; group = __cbq->group; } @@ -127,42 +127,56 @@ static int cn_call_callback(struct cn_msg *msg, void (*destruct_data)(void *), v { struct cn_callback_entry *__cbq; struct cn_dev *dev = &cdev; - int found = 0; + int err = -ENODEV; spin_lock_bh(&dev->cbdev->queue_lock); list_for_each_entry(__cbq, &dev->cbdev->queue_list, callback_entry) { - if (cn_cb_equal(&__cbq->cb->id, &msg->id)) { - /* - * Let's scream if there is some magic and the - * data will arrive asynchronously here. - * [i.e. netlink messages will be queued]. - * After the first warning I will fix it - * quickly, but now I think it is - * impossible. --zbr (2004_04_27). - */ + if (cn_cb_equal(&__cbq->id.id, &msg->id)) { if (likely(!test_bit(0, &__cbq->work.pending) && - __cbq->ddata == NULL)) { - __cbq->cb->priv = msg; + __cbq->data.ddata == NULL)) { + __cbq->data.callback_priv = msg; - __cbq->ddata = data; - __cbq->destruct_data = destruct_data; + __cbq->data.ddata = data; + __cbq->data.destruct_data = destruct_data; if (queue_work(dev->cbdev->cn_queue, &__cbq->work)) - found = 1; + err = 0; } else { - printk("%s: cbq->data=%p, " - "work->pending=%08lx.\n", - __func__, __cbq->ddata, - __cbq->work.pending); - WARN_ON(1); + struct work_struct *w; + struct cn_callback_data *d; + + w = kzalloc(sizeof(*w) + sizeof(*d), GFP_ATOMIC); + if (w) { + d = (struct cn_callback_data *)(w+1); + + d->callback_priv = msg; + d->callback = __cbq->data.callback; + d->ddata = data; + d->destruct_data = destruct_data; + d->free = w; + + INIT_LIST_HEAD(&w->entry); + w->pending = 0; + w->func = &cn_queue_wrapper; + w->data = d; + init_timer(&w->timer); + + if (queue_work(dev->cbdev->cn_queue, w)) + err = 0; + else { + kfree(w); + err = -EINVAL; + } + } else + err = -ENOMEM; } break; } } spin_unlock_bh(&dev->cbdev->queue_lock); - return found ? 0 : -ENODEV; + return err; } /* @@ -291,22 +305,10 @@ int cn_add_callback(struct cb_id *id, char *name, void (*callback)(void *)) { int err; struct cn_dev *dev = &cdev; - struct cn_callback *cb; - cb = kzalloc(sizeof(*cb), GFP_KERNEL); - if (!cb) - return -ENOMEM; - - scnprintf(cb->name, sizeof(cb->name), "%s", name); - - memcpy(&cb->id, id, sizeof(cb->id)); - cb->callback = callback; - - err = cn_queue_add_callback(dev->cbdev, cb); - if (err) { - kfree(cb); + err = cn_queue_add_callback(dev->cbdev, name, id, callback); + if (err) return err; - } cn_notify(id, 0); diff --git a/include/linux/connector.h b/include/linux/connector.h index 96de26301f84..86d4b0a81713 100644 --- a/include/linux/connector.h +++ b/include/linux/connector.h @@ -104,12 +104,19 @@ struct cn_queue_dev { struct sock *nls; }; -struct cn_callback { +struct cn_callback_id { unsigned char name[CN_CBQ_NAMELEN]; - struct cb_id id; +}; + +struct cn_callback_data { + void (*destruct_data) (void *); + void *ddata; + + void *callback_priv; void (*callback) (void *); - void *priv; + + void *free; }; struct cn_callback_entry { @@ -118,8 +125,8 @@ struct cn_callback_entry { struct work_struct work; struct cn_queue_dev *pdev; - void (*destruct_data) (void *); - void *ddata; + struct cn_callback_id id; + struct cn_callback_data data; int seq, group; struct sock *nls; @@ -144,7 +151,7 @@ int cn_add_callback(struct cb_id *, char *, void (*callback) (void *)); void cn_del_callback(struct cb_id *); int cn_netlink_send(struct cn_msg *, u32, int); -int cn_queue_add_callback(struct cn_queue_dev *dev, struct cn_callback *cb); +int cn_queue_add_callback(struct cn_queue_dev *dev, char *name, struct cb_id *id, void (*callback)(void *)); void cn_queue_del_callback(struct cn_queue_dev *dev, struct cb_id *id); struct cn_queue_dev *cn_queue_alloc_dev(char *name, struct sock *); @@ -152,6 +159,8 @@ void cn_queue_free_dev(struct cn_queue_dev *dev); int cn_cb_equal(struct cb_id *, struct cb_id *); +void cn_queue_wrapper(void *data); + extern int cn_already_initialized; #endif /* __KERNEL__ */ From c62dba9011b93fd88fde929848582b2a98309878 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Mon, 26 Sep 2005 15:10:16 -0700 Subject: [PATCH 151/352] [IPV6]: Fix [Bug 5306] Oops on IPv6 route lookup > Steps to reproduce: > 1. Boot Linux, do NOT setup any IPv6 routes > 2. ip route get 2001::1 (or any unroutable address) Well caught. We never set rt6i_idev on ip6_null_entry. This patch should make the problem go away. Signed-off-by: Herbert Xu Acked-by: YOSHIFUJI Hideaki Signed-off-by: David S. Miller --- net/ipv6/addrconf.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 2fea3f4402a0..4e509e52fbc1 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -3520,6 +3520,8 @@ int __init addrconf_init(void) if (err) return err; + ip6_null_entry.rt6i_idev = in6_dev_get(&loopback_dev); + register_netdevice_notifier(&ipv6_dev_notf); #ifdef CONFIG_IPV6_PRIVACY From b85daee0e497c8fe7c4dc3531674ede645b37cdf Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Mon, 26 Sep 2005 15:23:58 -0700 Subject: [PATCH 152/352] [AF_PACKET]: Remove bogus checks added to packet_sendmsg(). These broke existing apps, and the checks are superfluous as the values being verified aren't even used. Signed-off-by: David S. Miller --- net/packet/af_packet.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index ee865d88183b..6a67a87384cc 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -761,12 +761,6 @@ static int packet_sendmsg(struct kiocb *iocb, struct socket *sock, if (dev->hard_header) { int res; err = -EINVAL; - if (saddr) { - if (saddr->sll_halen != dev->addr_len) - goto out_free; - if (saddr->sll_hatype != dev->type) - goto out_free; - } res = dev->hard_header(skb, dev, ntohs(proto), addr, NULL, len); if (sock->type != SOCK_DGRAM) { skb->tail = skb->data; From 188bab3ae0ed164bc18f98be932512d777dd038b Mon Sep 17 00:00:00 2001 From: Harald Welte Date: Mon, 26 Sep 2005 15:25:11 -0700 Subject: [PATCH 153/352] [NETFILTER]: Fix invalid module autoloading by splitting iptable_nat When you've enabled conntrack and NAT as a module (standard case in all distributions), and you've also enabled the new conntrack netlink interface, loading ip_conntrack_netlink.ko will auto-load iptable_nat.ko. This causes a huge performance penalty, since for every packet you iterate the nat code, even if you don't want it. This patch splits iptable_nat.ko into the NAT core (ip_nat.ko) and the iptables frontend (iptable_nat.ko). Threfore, ip_conntrack_netlink.ko will only pull ip_nat.ko, but not the frontend. ip_nat.ko will "only" allocate some resources, but not affect runtime performance. This separation is also a nice step in anticipation of new packet filters (nf-hipac, ipset, pkttables) being able to use the NAT core. Signed-off-by: Harald Welte Signed-off-by: David S. Miller --- include/linux/netfilter_ipv4/ip_nat_core.h | 12 ++++---- net/ipv4/netfilter/Makefile | 5 ++-- net/ipv4/netfilter/ip_nat_core.c | 35 +++++++++++++++------- net/ipv4/netfilter/ip_nat_helper.c | 4 +++ net/ipv4/netfilter/ip_nat_standalone.c | 25 +++------------- 5 files changed, 40 insertions(+), 41 deletions(-) diff --git a/include/linux/netfilter_ipv4/ip_nat_core.h b/include/linux/netfilter_ipv4/ip_nat_core.h index 3b50eb91f007..30db23f06b03 100644 --- a/include/linux/netfilter_ipv4/ip_nat_core.h +++ b/include/linux/netfilter_ipv4/ip_nat_core.h @@ -5,16 +5,14 @@ /* This header used to share core functionality between the standalone NAT module, and the compatibility layer's use of NAT for masquerading. */ -extern int ip_nat_init(void); -extern void ip_nat_cleanup(void); -extern unsigned int nat_packet(struct ip_conntrack *ct, +extern unsigned int ip_nat_packet(struct ip_conntrack *ct, enum ip_conntrack_info conntrackinfo, unsigned int hooknum, struct sk_buff **pskb); -extern int icmp_reply_translation(struct sk_buff **pskb, - struct ip_conntrack *ct, - enum ip_nat_manip_type manip, - enum ip_conntrack_dir dir); +extern int ip_nat_icmp_reply_translation(struct sk_buff **pskb, + struct ip_conntrack *ct, + enum ip_nat_manip_type manip, + enum ip_conntrack_dir dir); #endif /* _IP_NAT_CORE_H */ diff --git a/net/ipv4/netfilter/Makefile b/net/ipv4/netfilter/Makefile index 89002533f2a2..dab4b58dd31e 100644 --- a/net/ipv4/netfilter/Makefile +++ b/net/ipv4/netfilter/Makefile @@ -4,7 +4,8 @@ # objects for the standalone - connection tracking / NAT ip_conntrack-objs := ip_conntrack_standalone.o ip_conntrack_core.o ip_conntrack_proto_generic.o ip_conntrack_proto_tcp.o ip_conntrack_proto_udp.o ip_conntrack_proto_icmp.o -iptable_nat-objs := ip_nat_standalone.o ip_nat_rule.o ip_nat_core.o ip_nat_helper.o ip_nat_proto_unknown.o ip_nat_proto_tcp.o ip_nat_proto_udp.o ip_nat_proto_icmp.o +ip_nat-objs := ip_nat_core.o ip_nat_helper.o ip_nat_proto_unknown.o ip_nat_proto_tcp.o ip_nat_proto_udp.o ip_nat_proto_icmp.o +iptable_nat-objs := ip_nat_rule.o ip_nat_standalone.o ip_conntrack_pptp-objs := ip_conntrack_helper_pptp.o ip_conntrack_proto_gre.o ip_nat_pptp-objs := ip_nat_helper_pptp.o ip_nat_proto_gre.o @@ -40,7 +41,7 @@ obj-$(CONFIG_IP_NF_IPTABLES) += ip_tables.o # the three instances of ip_tables obj-$(CONFIG_IP_NF_FILTER) += iptable_filter.o obj-$(CONFIG_IP_NF_MANGLE) += iptable_mangle.o -obj-$(CONFIG_IP_NF_NAT) += iptable_nat.o +obj-$(CONFIG_IP_NF_NAT) += iptable_nat.o ip_nat.o obj-$(CONFIG_IP_NF_RAW) += iptable_raw.o # matches diff --git a/net/ipv4/netfilter/ip_nat_core.c b/net/ipv4/netfilter/ip_nat_core.c index c3ea891d38e7..c5e3abd24672 100644 --- a/net/ipv4/netfilter/ip_nat_core.c +++ b/net/ipv4/netfilter/ip_nat_core.c @@ -74,12 +74,14 @@ ip_nat_proto_find_get(u_int8_t protonum) return p; } +EXPORT_SYMBOL_GPL(ip_nat_proto_find_get); void ip_nat_proto_put(struct ip_nat_protocol *p) { module_put(p->me); } +EXPORT_SYMBOL_GPL(ip_nat_proto_put); /* We keep an extra hash for each conntrack, for fast searching. */ static inline unsigned int @@ -111,6 +113,7 @@ ip_nat_cheat_check(u_int32_t oldvalinv, u_int32_t newval, u_int16_t oldcheck) return csum_fold(csum_partial((char *)diffs, sizeof(diffs), oldcheck^0xFFFF)); } +EXPORT_SYMBOL(ip_nat_cheat_check); /* Is this tuple already taken? (not by us) */ int @@ -127,6 +130,7 @@ ip_nat_used_tuple(const struct ip_conntrack_tuple *tuple, invert_tuplepr(&reply, tuple); return ip_conntrack_tuple_taken(&reply, ignored_conntrack); } +EXPORT_SYMBOL(ip_nat_used_tuple); /* If we source map this tuple so reply looks like reply_tuple, will * that meet the constraints of range. */ @@ -347,6 +351,7 @@ ip_nat_setup_info(struct ip_conntrack *conntrack, return NF_ACCEPT; } +EXPORT_SYMBOL(ip_nat_setup_info); /* Returns true if succeeded. */ static int @@ -387,10 +392,10 @@ manip_pkt(u_int16_t proto, } /* Do packet manipulations according to ip_nat_setup_info. */ -unsigned int nat_packet(struct ip_conntrack *ct, - enum ip_conntrack_info ctinfo, - unsigned int hooknum, - struct sk_buff **pskb) +unsigned int ip_nat_packet(struct ip_conntrack *ct, + enum ip_conntrack_info ctinfo, + unsigned int hooknum, + struct sk_buff **pskb) { enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo); unsigned long statusbit; @@ -417,12 +422,13 @@ unsigned int nat_packet(struct ip_conntrack *ct, } return NF_ACCEPT; } +EXPORT_SYMBOL_GPL(ip_nat_packet); /* Dir is direction ICMP is coming from (opposite to packet it contains) */ -int icmp_reply_translation(struct sk_buff **pskb, - struct ip_conntrack *ct, - enum ip_nat_manip_type manip, - enum ip_conntrack_dir dir) +int ip_nat_icmp_reply_translation(struct sk_buff **pskb, + struct ip_conntrack *ct, + enum ip_nat_manip_type manip, + enum ip_conntrack_dir dir) { struct { struct icmphdr icmp; @@ -509,6 +515,7 @@ int icmp_reply_translation(struct sk_buff **pskb, return 1; } +EXPORT_SYMBOL_GPL(ip_nat_icmp_reply_translation); /* Protocol registration. */ int ip_nat_protocol_register(struct ip_nat_protocol *proto) @@ -525,6 +532,7 @@ int ip_nat_protocol_register(struct ip_nat_protocol *proto) write_unlock_bh(&ip_nat_lock); return ret; } +EXPORT_SYMBOL(ip_nat_protocol_register); /* Noone stores the protocol anywhere; simply delete it. */ void ip_nat_protocol_unregister(struct ip_nat_protocol *proto) @@ -536,6 +544,7 @@ void ip_nat_protocol_unregister(struct ip_nat_protocol *proto) /* Someone could be still looking at the proto in a bh. */ synchronize_net(); } +EXPORT_SYMBOL(ip_nat_protocol_unregister); #if defined(CONFIG_IP_NF_CONNTRACK_NETLINK) || \ defined(CONFIG_IP_NF_CONNTRACK_NETLINK_MODULE) @@ -582,7 +591,7 @@ EXPORT_SYMBOL_GPL(ip_nat_port_nfattr_to_range); EXPORT_SYMBOL_GPL(ip_nat_port_range_to_nfattr); #endif -int __init ip_nat_init(void) +static int __init ip_nat_init(void) { size_t i; @@ -624,10 +633,14 @@ static int clean_nat(struct ip_conntrack *i, void *data) return 0; } -/* Not __exit: called from ip_nat_standalone.c:init_or_cleanup() --RR */ -void ip_nat_cleanup(void) +static void __exit ip_nat_cleanup(void) { ip_ct_iterate_cleanup(&clean_nat, NULL); ip_conntrack_destroyed = NULL; vfree(bysource); } + +MODULE_LICENSE("GPL"); + +module_init(ip_nat_init); +module_exit(ip_nat_cleanup); diff --git a/net/ipv4/netfilter/ip_nat_helper.c b/net/ipv4/netfilter/ip_nat_helper.c index d2dd5d313556..5d506e0564d5 100644 --- a/net/ipv4/netfilter/ip_nat_helper.c +++ b/net/ipv4/netfilter/ip_nat_helper.c @@ -199,6 +199,7 @@ ip_nat_mangle_tcp_packet(struct sk_buff **pskb, } return 1; } +EXPORT_SYMBOL(ip_nat_mangle_tcp_packet); /* Generic function for mangling variable-length address changes inside * NATed UDP connections (like the CONNECT DATA XXXXX MESG XXXXX INDEX XXXXX @@ -256,6 +257,7 @@ ip_nat_mangle_udp_packet(struct sk_buff **pskb, return 1; } +EXPORT_SYMBOL(ip_nat_mangle_udp_packet); /* Adjust one found SACK option including checksum correction */ static void @@ -399,6 +401,7 @@ ip_nat_seq_adjust(struct sk_buff **pskb, return 1; } +EXPORT_SYMBOL(ip_nat_seq_adjust); /* Setup NAT on this expected conntrack so it follows master. */ /* If we fail to get a free NAT slot, we'll get dropped on confirm */ @@ -425,3 +428,4 @@ void ip_nat_follow_master(struct ip_conntrack *ct, /* hook doesn't matter, but it has to do destination manip */ ip_nat_setup_info(ct, &range, NF_IP_PRE_ROUTING); } +EXPORT_SYMBOL(ip_nat_follow_master); diff --git a/net/ipv4/netfilter/ip_nat_standalone.c b/net/ipv4/netfilter/ip_nat_standalone.c index 0ff368b131f6..30cd4e18c129 100644 --- a/net/ipv4/netfilter/ip_nat_standalone.c +++ b/net/ipv4/netfilter/ip_nat_standalone.c @@ -108,8 +108,8 @@ ip_nat_fn(unsigned int hooknum, case IP_CT_RELATED: case IP_CT_RELATED+IP_CT_IS_REPLY: if ((*pskb)->nh.iph->protocol == IPPROTO_ICMP) { - if (!icmp_reply_translation(pskb, ct, maniptype, - CTINFO2DIR(ctinfo))) + if (!ip_nat_icmp_reply_translation(pskb, ct, maniptype, + CTINFO2DIR(ctinfo))) return NF_DROP; else return NF_ACCEPT; @@ -152,7 +152,7 @@ ip_nat_fn(unsigned int hooknum, } IP_NF_ASSERT(info); - return nat_packet(ct, ctinfo, hooknum, pskb); + return ip_nat_packet(ct, ctinfo, hooknum, pskb); } static unsigned int @@ -325,15 +325,10 @@ static int init_or_cleanup(int init) printk("ip_nat_init: can't setup rules.\n"); goto cleanup_nothing; } - ret = ip_nat_init(); - if (ret < 0) { - printk("ip_nat_init: can't setup rules.\n"); - goto cleanup_rule_init; - } ret = nf_register_hook(&ip_nat_in_ops); if (ret < 0) { printk("ip_nat_init: can't register in hook.\n"); - goto cleanup_nat; + goto cleanup_rule_init; } ret = nf_register_hook(&ip_nat_out_ops); if (ret < 0) { @@ -374,8 +369,6 @@ static int init_or_cleanup(int init) nf_unregister_hook(&ip_nat_out_ops); cleanup_inops: nf_unregister_hook(&ip_nat_in_ops); - cleanup_nat: - ip_nat_cleanup(); cleanup_rule_init: ip_nat_rule_cleanup(); cleanup_nothing: @@ -395,14 +388,4 @@ static void __exit fini(void) module_init(init); module_exit(fini); -EXPORT_SYMBOL(ip_nat_setup_info); -EXPORT_SYMBOL(ip_nat_protocol_register); -EXPORT_SYMBOL(ip_nat_protocol_unregister); -EXPORT_SYMBOL_GPL(ip_nat_proto_find_get); -EXPORT_SYMBOL_GPL(ip_nat_proto_put); -EXPORT_SYMBOL(ip_nat_cheat_check); -EXPORT_SYMBOL(ip_nat_mangle_tcp_packet); -EXPORT_SYMBOL(ip_nat_mangle_udp_packet); -EXPORT_SYMBOL(ip_nat_used_tuple); -EXPORT_SYMBOL(ip_nat_follow_master); MODULE_LICENSE("GPL"); From c4a3e0a529ab3e65223e81681c7c6b1bc188fa58 Mon Sep 17 00:00:00 2001 From: "Bagalkote, Sreenivas" Date: Tue, 20 Sep 2005 17:46:58 -0400 Subject: [PATCH 154/352] [SCSI] MegaRAID SAS RAID: new driver Signed-off-by: Sreenivas Bagalkote Signed-off-by: James Bottomley --- drivers/scsi/Makefile | 1 + drivers/scsi/megaraid/Kconfig.megaraid | 9 + drivers/scsi/megaraid/Makefile | 1 + drivers/scsi/megaraid/megaraid_sas.c | 2805 ++++++++++++++++++++++++ drivers/scsi/megaraid/megaraid_sas.h | 1142 ++++++++++ include/linux/pci_ids.h | 2 + 6 files changed, 3960 insertions(+) create mode 100644 drivers/scsi/megaraid/megaraid_sas.c create mode 100644 drivers/scsi/megaraid/megaraid_sas.h diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile index 1e4edbdf2730..48529d180ca8 100644 --- a/drivers/scsi/Makefile +++ b/drivers/scsi/Makefile @@ -99,6 +99,7 @@ obj-$(CONFIG_SCSI_DC395x) += dc395x.o obj-$(CONFIG_SCSI_DC390T) += tmscsim.o obj-$(CONFIG_MEGARAID_LEGACY) += megaraid.o obj-$(CONFIG_MEGARAID_NEWGEN) += megaraid/ +obj-$(CONFIG_MEGARAID_SAS) += megaraid/ obj-$(CONFIG_SCSI_ACARD) += atp870u.o obj-$(CONFIG_SCSI_SUNESP) += esp.o obj-$(CONFIG_SCSI_GDTH) += gdth.o diff --git a/drivers/scsi/megaraid/Kconfig.megaraid b/drivers/scsi/megaraid/Kconfig.megaraid index 917d591d90b2..7363e12663ac 100644 --- a/drivers/scsi/megaraid/Kconfig.megaraid +++ b/drivers/scsi/megaraid/Kconfig.megaraid @@ -76,3 +76,12 @@ config MEGARAID_LEGACY To compile this driver as a module, choose M here: the module will be called megaraid endif + +config MEGARAID_SAS + tristate "LSI Logic MegaRAID SAS RAID Module" + depends on PCI && SCSI + help + Module for LSI Logic's SAS based RAID controllers. + To compile this driver as a module, choose 'm' here. + Module will be called megaraid_sas + diff --git a/drivers/scsi/megaraid/Makefile b/drivers/scsi/megaraid/Makefile index 6dd99f275722..f469915b97c3 100644 --- a/drivers/scsi/megaraid/Makefile +++ b/drivers/scsi/megaraid/Makefile @@ -1,2 +1,3 @@ obj-$(CONFIG_MEGARAID_MM) += megaraid_mm.o obj-$(CONFIG_MEGARAID_MAILBOX) += megaraid_mbox.o +obj-$(CONFIG_MEGARAID_SAS) += megaraid_sas.o diff --git a/drivers/scsi/megaraid/megaraid_sas.c b/drivers/scsi/megaraid/megaraid_sas.c new file mode 100644 index 000000000000..1b3148e842af --- /dev/null +++ b/drivers/scsi/megaraid/megaraid_sas.c @@ -0,0 +1,2805 @@ +/* + * + * Linux MegaRAID driver for SAS based RAID controllers + * + * Copyright (c) 2003-2005 LSI Logic Corporation. + * + * 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. + * + * FILE : megaraid_sas.c + * Version : v00.00.02.00-rc4 + * + * Authors: + * Sreenivas Bagalkote + * Sumant Patro + * + * List of supported controllers + * + * OEM Product Name VID DID SSVID SSID + * --- ------------ --- --- ---- ---- + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include "megaraid_sas.h" + +MODULE_LICENSE("GPL"); +MODULE_VERSION(MEGASAS_VERSION); +MODULE_AUTHOR("sreenivas.bagalkote@lsil.com"); +MODULE_DESCRIPTION("LSI Logic MegaRAID SAS Driver"); + +/* + * PCI ID table for all supported controllers + */ +static struct pci_device_id megasas_pci_table[] = { + + { + PCI_VENDOR_ID_LSI_LOGIC, + PCI_DEVICE_ID_LSI_SAS1064R, + PCI_ANY_ID, + PCI_ANY_ID, + }, + { + PCI_VENDOR_ID_DELL, + PCI_DEVICE_ID_DELL_PERC5, + PCI_ANY_ID, + PCI_ANY_ID, + }, + {0} /* Terminating entry */ +}; + +MODULE_DEVICE_TABLE(pci, megasas_pci_table); + +static int megasas_mgmt_majorno; +static struct megasas_mgmt_info megasas_mgmt_info; +static struct fasync_struct *megasas_async_queue; +static DECLARE_MUTEX(megasas_async_queue_mutex); + +/** + * megasas_get_cmd - Get a command from the free pool + * @instance: Adapter soft state + * + * Returns a free command from the pool + */ +static inline struct megasas_cmd *megasas_get_cmd(struct megasas_instance + *instance) +{ + unsigned long flags; + struct megasas_cmd *cmd = NULL; + + spin_lock_irqsave(&instance->cmd_pool_lock, flags); + + if (!list_empty(&instance->cmd_pool)) { + cmd = list_entry((&instance->cmd_pool)->next, + struct megasas_cmd, list); + list_del_init(&cmd->list); + } else { + printk(KERN_ERR "megasas: Command pool empty!\n"); + } + + spin_unlock_irqrestore(&instance->cmd_pool_lock, flags); + return cmd; +} + +/** + * megasas_return_cmd - Return a cmd to free command pool + * @instance: Adapter soft state + * @cmd: Command packet to be returned to free command pool + */ +static inline void +megasas_return_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd) +{ + unsigned long flags; + + spin_lock_irqsave(&instance->cmd_pool_lock, flags); + + cmd->scmd = NULL; + list_add_tail(&cmd->list, &instance->cmd_pool); + + spin_unlock_irqrestore(&instance->cmd_pool_lock, flags); +} + +/** + * megasas_enable_intr - Enables interrupts + * @regs: MFI register set + */ +static inline void +megasas_enable_intr(struct megasas_register_set __iomem * regs) +{ + writel(1, &(regs)->outbound_intr_mask); + + /* Dummy readl to force pci flush */ + readl(®s->outbound_intr_mask); +} + +/** + * megasas_disable_intr - Disables interrupts + * @regs: MFI register set + */ +static inline void +megasas_disable_intr(struct megasas_register_set __iomem * regs) +{ + u32 mask = readl(®s->outbound_intr_mask) & (~0x00000001); + writel(mask, ®s->outbound_intr_mask); + + /* Dummy readl to force pci flush */ + readl(®s->outbound_intr_mask); +} + +/** + * megasas_issue_polled - Issues a polling command + * @instance: Adapter soft state + * @cmd: Command packet to be issued + * + * For polling, MFI requires the cmd_status to be set to 0xFF before posting. + */ +static int +megasas_issue_polled(struct megasas_instance *instance, struct megasas_cmd *cmd) +{ + int i; + u32 msecs = MFI_POLL_TIMEOUT_SECS * 1000; + + struct megasas_header *frame_hdr = &cmd->frame->hdr; + + frame_hdr->cmd_status = 0xFF; + frame_hdr->flags |= MFI_FRAME_DONT_POST_IN_REPLY_QUEUE; + + /* + * Issue the frame using inbound queue port + */ + writel(cmd->frame_phys_addr >> 3, + &instance->reg_set->inbound_queue_port); + + /* + * Wait for cmd_status to change + */ + for (i = 0; (i < msecs) && (frame_hdr->cmd_status == 0xff); i++) { + rmb(); + msleep(1); + } + + if (frame_hdr->cmd_status == 0xff) + return -ETIME; + + return 0; +} + +/** + * megasas_issue_blocked_cmd - Synchronous wrapper around regular FW cmds + * @instance: Adapter soft state + * @cmd: Command to be issued + * + * This function waits on an event for the command to be returned from ISR. + * Used to issue ioctl commands. + */ +static int +megasas_issue_blocked_cmd(struct megasas_instance *instance, + struct megasas_cmd *cmd) +{ + cmd->cmd_status = ENODATA; + + writel(cmd->frame_phys_addr >> 3, + &instance->reg_set->inbound_queue_port); + + wait_event(instance->int_cmd_wait_q, (cmd->cmd_status != ENODATA)); + + return 0; +} + +/** + * megasas_issue_blocked_abort_cmd - Aborts previously issued cmd + * @instance: Adapter soft state + * @cmd_to_abort: Previously issued cmd to be aborted + * + * MFI firmware can abort previously issued AEN comamnd (automatic event + * notification). The megasas_issue_blocked_abort_cmd() issues such abort + * cmd and blocks till it is completed. + */ +static int +megasas_issue_blocked_abort_cmd(struct megasas_instance *instance, + struct megasas_cmd *cmd_to_abort) +{ + struct megasas_cmd *cmd; + struct megasas_abort_frame *abort_fr; + + cmd = megasas_get_cmd(instance); + + if (!cmd) + return -1; + + abort_fr = &cmd->frame->abort; + + /* + * Prepare and issue the abort frame + */ + abort_fr->cmd = MFI_CMD_ABORT; + abort_fr->cmd_status = 0xFF; + abort_fr->flags = 0; + abort_fr->abort_context = cmd_to_abort->index; + abort_fr->abort_mfi_phys_addr_lo = cmd_to_abort->frame_phys_addr; + abort_fr->abort_mfi_phys_addr_hi = 0; + + cmd->sync_cmd = 1; + cmd->cmd_status = 0xFF; + + writel(cmd->frame_phys_addr >> 3, + &instance->reg_set->inbound_queue_port); + + /* + * Wait for this cmd to complete + */ + wait_event(instance->abort_cmd_wait_q, (cmd->cmd_status != 0xFF)); + + megasas_return_cmd(instance, cmd); + return 0; +} + +/** + * megasas_make_sgl32 - Prepares 32-bit SGL + * @instance: Adapter soft state + * @scp: SCSI command from the mid-layer + * @mfi_sgl: SGL to be filled in + * + * If successful, this function returns the number of SG elements. Otherwise, + * it returnes -1. + */ +static inline int +megasas_make_sgl32(struct megasas_instance *instance, struct scsi_cmnd *scp, + union megasas_sgl *mfi_sgl) +{ + int i; + int sge_count; + struct scatterlist *os_sgl; + + /* + * Return 0 if there is no data transfer + */ + if (!scp->request_buffer || !scp->request_bufflen) + return 0; + + if (!scp->use_sg) { + mfi_sgl->sge32[0].phys_addr = pci_map_single(instance->pdev, + scp-> + request_buffer, + scp-> + request_bufflen, + scp-> + sc_data_direction); + mfi_sgl->sge32[0].length = scp->request_bufflen; + + return 1; + } + + os_sgl = (struct scatterlist *)scp->request_buffer; + sge_count = pci_map_sg(instance->pdev, os_sgl, scp->use_sg, + scp->sc_data_direction); + + for (i = 0; i < sge_count; i++, os_sgl++) { + mfi_sgl->sge32[i].length = sg_dma_len(os_sgl); + mfi_sgl->sge32[i].phys_addr = sg_dma_address(os_sgl); + } + + return sge_count; +} + +/** + * megasas_make_sgl64 - Prepares 64-bit SGL + * @instance: Adapter soft state + * @scp: SCSI command from the mid-layer + * @mfi_sgl: SGL to be filled in + * + * If successful, this function returns the number of SG elements. Otherwise, + * it returnes -1. + */ +static inline int +megasas_make_sgl64(struct megasas_instance *instance, struct scsi_cmnd *scp, + union megasas_sgl *mfi_sgl) +{ + int i; + int sge_count; + struct scatterlist *os_sgl; + + /* + * Return 0 if there is no data transfer + */ + if (!scp->request_buffer || !scp->request_bufflen) + return 0; + + if (!scp->use_sg) { + mfi_sgl->sge64[0].phys_addr = pci_map_single(instance->pdev, + scp-> + request_buffer, + scp-> + request_bufflen, + scp-> + sc_data_direction); + + mfi_sgl->sge64[0].length = scp->request_bufflen; + + return 1; + } + + os_sgl = (struct scatterlist *)scp->request_buffer; + sge_count = pci_map_sg(instance->pdev, os_sgl, scp->use_sg, + scp->sc_data_direction); + + for (i = 0; i < sge_count; i++, os_sgl++) { + mfi_sgl->sge64[i].length = sg_dma_len(os_sgl); + mfi_sgl->sge64[i].phys_addr = sg_dma_address(os_sgl); + } + + return sge_count; +} + +/** + * megasas_build_dcdb - Prepares a direct cdb (DCDB) command + * @instance: Adapter soft state + * @scp: SCSI command + * @cmd: Command to be prepared in + * + * This function prepares CDB commands. These are typcially pass-through + * commands to the devices. + */ +static inline int +megasas_build_dcdb(struct megasas_instance *instance, struct scsi_cmnd *scp, + struct megasas_cmd *cmd) +{ + u32 sge_sz; + int sge_bytes; + u32 is_logical; + u32 device_id; + u16 flags = 0; + struct megasas_pthru_frame *pthru; + + is_logical = MEGASAS_IS_LOGICAL(scp); + device_id = MEGASAS_DEV_INDEX(instance, scp); + pthru = (struct megasas_pthru_frame *)cmd->frame; + + if (scp->sc_data_direction == PCI_DMA_TODEVICE) + flags = MFI_FRAME_DIR_WRITE; + else if (scp->sc_data_direction == PCI_DMA_FROMDEVICE) + flags = MFI_FRAME_DIR_READ; + else if (scp->sc_data_direction == PCI_DMA_NONE) + flags = MFI_FRAME_DIR_NONE; + + /* + * Prepare the DCDB frame + */ + pthru->cmd = (is_logical) ? MFI_CMD_LD_SCSI_IO : MFI_CMD_PD_SCSI_IO; + pthru->cmd_status = 0x0; + pthru->scsi_status = 0x0; + pthru->target_id = device_id; + pthru->lun = scp->device->lun; + pthru->cdb_len = scp->cmd_len; + pthru->timeout = 0; + pthru->flags = flags; + pthru->data_xfer_len = scp->request_bufflen; + + memcpy(pthru->cdb, scp->cmnd, scp->cmd_len); + + /* + * Construct SGL + */ + sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) : + sizeof(struct megasas_sge32); + + if (IS_DMA64) { + pthru->flags |= MFI_FRAME_SGL64; + pthru->sge_count = megasas_make_sgl64(instance, scp, + &pthru->sgl); + } else + pthru->sge_count = megasas_make_sgl32(instance, scp, + &pthru->sgl); + + /* + * Sense info specific + */ + pthru->sense_len = SCSI_SENSE_BUFFERSIZE; + pthru->sense_buf_phys_addr_hi = 0; + pthru->sense_buf_phys_addr_lo = cmd->sense_phys_addr; + + sge_bytes = sge_sz * pthru->sge_count; + + /* + * Compute the total number of frames this command consumes. FW uses + * this number to pull sufficient number of frames from host memory. + */ + cmd->frame_count = (sge_bytes / MEGAMFI_FRAME_SIZE) + + ((sge_bytes % MEGAMFI_FRAME_SIZE) ? 1 : 0) + 1; + + if (cmd->frame_count > 7) + cmd->frame_count = 8; + + return cmd->frame_count; +} + +/** + * megasas_build_ldio - Prepares IOs to logical devices + * @instance: Adapter soft state + * @scp: SCSI command + * @cmd: Command to to be prepared + * + * Frames (and accompanying SGLs) for regular SCSI IOs use this function. + */ +static inline int +megasas_build_ldio(struct megasas_instance *instance, struct scsi_cmnd *scp, + struct megasas_cmd *cmd) +{ + u32 sge_sz; + int sge_bytes; + u32 device_id; + u8 sc = scp->cmnd[0]; + u16 flags = 0; + struct megasas_io_frame *ldio; + + device_id = MEGASAS_DEV_INDEX(instance, scp); + ldio = (struct megasas_io_frame *)cmd->frame; + + if (scp->sc_data_direction == PCI_DMA_TODEVICE) + flags = MFI_FRAME_DIR_WRITE; + else if (scp->sc_data_direction == PCI_DMA_FROMDEVICE) + flags = MFI_FRAME_DIR_READ; + + /* + * Preare the Logical IO frame: 2nd bit is zero for all read cmds + */ + ldio->cmd = (sc & 0x02) ? MFI_CMD_LD_WRITE : MFI_CMD_LD_READ; + ldio->cmd_status = 0x0; + ldio->scsi_status = 0x0; + ldio->target_id = device_id; + ldio->timeout = 0; + ldio->reserved_0 = 0; + ldio->pad_0 = 0; + ldio->flags = flags; + ldio->start_lba_hi = 0; + ldio->access_byte = (scp->cmd_len != 6) ? scp->cmnd[1] : 0; + + /* + * 6-byte READ(0x08) or WRITE(0x0A) cdb + */ + if (scp->cmd_len == 6) { + ldio->lba_count = (u32) scp->cmnd[4]; + ldio->start_lba_lo = ((u32) scp->cmnd[1] << 16) | + ((u32) scp->cmnd[2] << 8) | (u32) scp->cmnd[3]; + + ldio->start_lba_lo &= 0x1FFFFF; + } + + /* + * 10-byte READ(0x28) or WRITE(0x2A) cdb + */ + else if (scp->cmd_len == 10) { + ldio->lba_count = (u32) scp->cmnd[8] | + ((u32) scp->cmnd[7] << 8); + ldio->start_lba_lo = ((u32) scp->cmnd[2] << 24) | + ((u32) scp->cmnd[3] << 16) | + ((u32) scp->cmnd[4] << 8) | (u32) scp->cmnd[5]; + } + + /* + * 12-byte READ(0xA8) or WRITE(0xAA) cdb + */ + else if (scp->cmd_len == 12) { + ldio->lba_count = ((u32) scp->cmnd[6] << 24) | + ((u32) scp->cmnd[7] << 16) | + ((u32) scp->cmnd[8] << 8) | (u32) scp->cmnd[9]; + + ldio->start_lba_lo = ((u32) scp->cmnd[2] << 24) | + ((u32) scp->cmnd[3] << 16) | + ((u32) scp->cmnd[4] << 8) | (u32) scp->cmnd[5]; + } + + /* + * 16-byte READ(0x88) or WRITE(0x8A) cdb + */ + else if (scp->cmd_len == 16) { + ldio->lba_count = ((u32) scp->cmnd[10] << 24) | + ((u32) scp->cmnd[11] << 16) | + ((u32) scp->cmnd[12] << 8) | (u32) scp->cmnd[13]; + + ldio->start_lba_lo = ((u32) scp->cmnd[6] << 24) | + ((u32) scp->cmnd[7] << 16) | + ((u32) scp->cmnd[8] << 8) | (u32) scp->cmnd[9]; + + ldio->start_lba_hi = ((u32) scp->cmnd[2] << 24) | + ((u32) scp->cmnd[3] << 16) | + ((u32) scp->cmnd[4] << 8) | (u32) scp->cmnd[5]; + + } + + /* + * Construct SGL + */ + sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) : + sizeof(struct megasas_sge32); + + if (IS_DMA64) { + ldio->flags |= MFI_FRAME_SGL64; + ldio->sge_count = megasas_make_sgl64(instance, scp, &ldio->sgl); + } else + ldio->sge_count = megasas_make_sgl32(instance, scp, &ldio->sgl); + + /* + * Sense info specific + */ + ldio->sense_len = SCSI_SENSE_BUFFERSIZE; + ldio->sense_buf_phys_addr_hi = 0; + ldio->sense_buf_phys_addr_lo = cmd->sense_phys_addr; + + sge_bytes = sge_sz * ldio->sge_count; + + cmd->frame_count = (sge_bytes / MEGAMFI_FRAME_SIZE) + + ((sge_bytes % MEGAMFI_FRAME_SIZE) ? 1 : 0) + 1; + + if (cmd->frame_count > 7) + cmd->frame_count = 8; + + return cmd->frame_count; +} + +/** + * megasas_build_cmd - Prepares a command packet + * @instance: Adapter soft state + * @scp: SCSI command + * @frame_count: [OUT] Number of frames used to prepare this command + */ +static inline struct megasas_cmd *megasas_build_cmd(struct megasas_instance + *instance, + struct scsi_cmnd *scp, + int *frame_count) +{ + u32 logical_cmd; + struct megasas_cmd *cmd; + + /* + * Find out if this is logical or physical drive command. + */ + logical_cmd = MEGASAS_IS_LOGICAL(scp); + + /* + * Logical drive command + */ + if (logical_cmd) { + + if (scp->device->id >= MEGASAS_MAX_LD) { + scp->result = DID_BAD_TARGET << 16; + return NULL; + } + + switch (scp->cmnd[0]) { + + case READ_10: + case WRITE_10: + case READ_12: + case WRITE_12: + case READ_6: + case WRITE_6: + case READ_16: + case WRITE_16: + /* + * Fail for LUN > 0 + */ + if (scp->device->lun) { + scp->result = DID_BAD_TARGET << 16; + return NULL; + } + + cmd = megasas_get_cmd(instance); + + if (!cmd) { + scp->result = DID_IMM_RETRY << 16; + return NULL; + } + + *frame_count = megasas_build_ldio(instance, scp, cmd); + + if (!(*frame_count)) { + megasas_return_cmd(instance, cmd); + return NULL; + } + + return cmd; + + default: + /* + * Fail for LUN > 0 + */ + if (scp->device->lun) { + scp->result = DID_BAD_TARGET << 16; + return NULL; + } + + cmd = megasas_get_cmd(instance); + + if (!cmd) { + scp->result = DID_IMM_RETRY << 16; + return NULL; + } + + *frame_count = megasas_build_dcdb(instance, scp, cmd); + + if (!(*frame_count)) { + megasas_return_cmd(instance, cmd); + return NULL; + } + + return cmd; + } + } else { + cmd = megasas_get_cmd(instance); + + if (!cmd) { + scp->result = DID_IMM_RETRY << 16; + return NULL; + } + + *frame_count = megasas_build_dcdb(instance, scp, cmd); + + if (!(*frame_count)) { + megasas_return_cmd(instance, cmd); + return NULL; + } + + return cmd; + } + + return NULL; +} + +/** + * megasas_queue_command - Queue entry point + * @scmd: SCSI command to be queued + * @done: Callback entry point + */ +static int +megasas_queue_command(struct scsi_cmnd *scmd, void (*done) (struct scsi_cmnd *)) +{ + u32 frame_count; + unsigned long flags; + struct megasas_cmd *cmd; + struct megasas_instance *instance; + + instance = (struct megasas_instance *) + scmd->device->host->hostdata; + scmd->scsi_done = done; + scmd->result = 0; + + cmd = megasas_build_cmd(instance, scmd, &frame_count); + + if (!cmd) { + done(scmd); + return 0; + } + + cmd->scmd = scmd; + scmd->SCp.ptr = (char *)cmd; + scmd->SCp.sent_command = jiffies; + + /* + * Issue the command to the FW + */ + spin_lock_irqsave(&instance->instance_lock, flags); + instance->fw_outstanding++; + spin_unlock_irqrestore(&instance->instance_lock, flags); + + writel(((cmd->frame_phys_addr >> 3) | (cmd->frame_count - 1)), + &instance->reg_set->inbound_queue_port); + + return 0; +} + +/** + * megasas_wait_for_outstanding - Wait for all outstanding cmds + * @instance: Adapter soft state + * + * This function waits for upto MEGASAS_RESET_WAIT_TIME seconds for FW to + * complete all its outstanding commands. Returns error if one or more IOs + * are pending after this time period. It also marks the controller dead. + */ +static int megasas_wait_for_outstanding(struct megasas_instance *instance) +{ + int i; + u32 wait_time = MEGASAS_RESET_WAIT_TIME; + + for (i = 0; i < wait_time; i++) { + + if (!instance->fw_outstanding) + break; + + if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) { + printk(KERN_NOTICE "megasas: [%2d]waiting for %d " + "commands to complete\n", i, + instance->fw_outstanding); + } + + msleep(1000); + } + + if (instance->fw_outstanding) { + instance->hw_crit_error = 1; + return FAILED; + } + + return SUCCESS; +} + +/** + * megasas_generic_reset - Generic reset routine + * @scmd: Mid-layer SCSI command + * + * This routine implements a generic reset handler for device, bus and host + * reset requests. Device, bus and host specific reset handlers can use this + * function after they do their specific tasks. + */ +static int megasas_generic_reset(struct scsi_cmnd *scmd) +{ + int ret_val; + struct megasas_instance *instance; + + instance = (struct megasas_instance *)scmd->device->host->hostdata; + + printk(KERN_NOTICE "megasas: RESET -%ld cmd=%x \n", + scmd->serial_number, scmd->cmnd[0], scmd->device->channel, + scmd->device->id, scmd->device->lun); + + if (instance->hw_crit_error) { + printk(KERN_ERR "megasas: cannot recover from previous reset " + "failures\n"); + return FAILED; + } + + spin_unlock(scmd->device->host->host_lock); + + ret_val = megasas_wait_for_outstanding(instance); + + if (ret_val == SUCCESS) + printk(KERN_NOTICE "megasas: reset successful \n"); + else + printk(KERN_ERR "megasas: failed to do reset\n"); + + spin_lock(scmd->device->host->host_lock); + + return ret_val; +} + +static enum scsi_eh_timer_return megasas_reset_timer(struct scsi_cmnd *scmd) +{ + unsigned long seconds; + + if (scmd->SCp.ptr) { + seconds = (jiffies - scmd->SCp.sent_command) / HZ; + + if (seconds < 90) { + return EH_RESET_TIMER; + } else { + return EH_NOT_HANDLED; + } + } + + return EH_HANDLED; +} + +/** + * megasas_reset_device - Device reset handler entry point + */ +static int megasas_reset_device(struct scsi_cmnd *scmd) +{ + int ret; + + /* + * First wait for all commands to complete + */ + ret = megasas_generic_reset(scmd); + + return ret; +} + +/** + * megasas_reset_bus_host - Bus & host reset handler entry point + */ +static int megasas_reset_bus_host(struct scsi_cmnd *scmd) +{ + int ret; + + /* + * Frist wait for all commands to complete + */ + ret = megasas_generic_reset(scmd); + + return ret; +} + +/** + * megasas_service_aen - Processes an event notification + * @instance: Adapter soft state + * @cmd: AEN command completed by the ISR + * + * For AEN, driver sends a command down to FW that is held by the FW till an + * event occurs. When an event of interest occurs, FW completes the command + * that it was previously holding. + * + * This routines sends SIGIO signal to processes that have registered with the + * driver for AEN. + */ +static void +megasas_service_aen(struct megasas_instance *instance, struct megasas_cmd *cmd) +{ + /* + * Don't signal app if it is just an aborted previously registered aen + */ + if (!cmd->abort_aen) + kill_fasync(&megasas_async_queue, SIGIO, POLL_IN); + else + cmd->abort_aen = 0; + + instance->aen_cmd = NULL; + megasas_return_cmd(instance, cmd); +} + +/* + * Scsi host template for megaraid_sas driver + */ +static struct scsi_host_template megasas_template = { + + .module = THIS_MODULE, + .name = "LSI Logic SAS based MegaRAID driver", + .proc_name = "megaraid_sas", + .queuecommand = megasas_queue_command, + .eh_device_reset_handler = megasas_reset_device, + .eh_bus_reset_handler = megasas_reset_bus_host, + .eh_host_reset_handler = megasas_reset_bus_host, + .eh_timed_out = megasas_reset_timer, + .use_clustering = ENABLE_CLUSTERING, +}; + +/** + * megasas_complete_int_cmd - Completes an internal command + * @instance: Adapter soft state + * @cmd: Command to be completed + * + * The megasas_issue_blocked_cmd() function waits for a command to complete + * after it issues a command. This function wakes up that waiting routine by + * calling wake_up() on the wait queue. + */ +static void +megasas_complete_int_cmd(struct megasas_instance *instance, + struct megasas_cmd *cmd) +{ + cmd->cmd_status = cmd->frame->io.cmd_status; + + if (cmd->cmd_status == ENODATA) { + cmd->cmd_status = 0; + } + wake_up(&instance->int_cmd_wait_q); +} + +/** + * megasas_complete_abort - Completes aborting a command + * @instance: Adapter soft state + * @cmd: Cmd that was issued to abort another cmd + * + * The megasas_issue_blocked_abort_cmd() function waits on abort_cmd_wait_q + * after it issues an abort on a previously issued command. This function + * wakes up all functions waiting on the same wait queue. + */ +static void +megasas_complete_abort(struct megasas_instance *instance, + struct megasas_cmd *cmd) +{ + if (cmd->sync_cmd) { + cmd->sync_cmd = 0; + cmd->cmd_status = 0; + wake_up(&instance->abort_cmd_wait_q); + } + + return; +} + +/** + * megasas_unmap_sgbuf - Unmap SG buffers + * @instance: Adapter soft state + * @cmd: Completed command + */ +static inline void +megasas_unmap_sgbuf(struct megasas_instance *instance, struct megasas_cmd *cmd) +{ + dma_addr_t buf_h; + u8 opcode; + + if (cmd->scmd->use_sg) { + pci_unmap_sg(instance->pdev, cmd->scmd->request_buffer, + cmd->scmd->use_sg, cmd->scmd->sc_data_direction); + return; + } + + if (!cmd->scmd->request_bufflen) + return; + + opcode = cmd->frame->hdr.cmd; + + if ((opcode == MFI_CMD_LD_READ) || (opcode == MFI_CMD_LD_WRITE)) { + if (IS_DMA64) + buf_h = cmd->frame->io.sgl.sge64[0].phys_addr; + else + buf_h = cmd->frame->io.sgl.sge32[0].phys_addr; + } else { + if (IS_DMA64) + buf_h = cmd->frame->pthru.sgl.sge64[0].phys_addr; + else + buf_h = cmd->frame->pthru.sgl.sge32[0].phys_addr; + } + + pci_unmap_single(instance->pdev, buf_h, cmd->scmd->request_bufflen, + cmd->scmd->sc_data_direction); + return; +} + +/** + * megasas_complete_cmd - Completes a command + * @instance: Adapter soft state + * @cmd: Command to be completed + * @alt_status: If non-zero, use this value as status to + * SCSI mid-layer instead of the value returned + * by the FW. This should be used if caller wants + * an alternate status (as in the case of aborted + * commands) + */ +static inline void +megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd, + u8 alt_status) +{ + int exception = 0; + struct megasas_header *hdr = &cmd->frame->hdr; + unsigned long flags; + + if (cmd->scmd) { + cmd->scmd->SCp.ptr = (char *)0; + } + + switch (hdr->cmd) { + + case MFI_CMD_PD_SCSI_IO: + case MFI_CMD_LD_SCSI_IO: + + /* + * MFI_CMD_PD_SCSI_IO and MFI_CMD_LD_SCSI_IO could have been + * issued either through an IO path or an IOCTL path. If it + * was via IOCTL, we will send it to internal completion. + */ + if (cmd->sync_cmd) { + cmd->sync_cmd = 0; + megasas_complete_int_cmd(instance, cmd); + break; + } + + /* + * Don't export physical disk devices to mid-layer. + */ + if (!MEGASAS_IS_LOGICAL(cmd->scmd) && + (hdr->cmd_status == MFI_STAT_OK) && + (cmd->scmd->cmnd[0] == INQUIRY)) { + + if (((*(u8 *) cmd->scmd->request_buffer) & 0x1F) == + TYPE_DISK) { + cmd->scmd->result = DID_BAD_TARGET << 16; + exception = 1; + } + } + + case MFI_CMD_LD_READ: + case MFI_CMD_LD_WRITE: + + if (alt_status) { + cmd->scmd->result = alt_status << 16; + exception = 1; + } + + if (exception) { + + spin_lock_irqsave(&instance->instance_lock, flags); + instance->fw_outstanding--; + spin_unlock_irqrestore(&instance->instance_lock, flags); + + megasas_unmap_sgbuf(instance, cmd); + cmd->scmd->scsi_done(cmd->scmd); + megasas_return_cmd(instance, cmd); + + break; + } + + switch (hdr->cmd_status) { + + case MFI_STAT_OK: + cmd->scmd->result = DID_OK << 16; + break; + + case MFI_STAT_SCSI_IO_FAILED: + case MFI_STAT_LD_INIT_IN_PROGRESS: + cmd->scmd->result = + (DID_ERROR << 16) | hdr->scsi_status; + break; + + case MFI_STAT_SCSI_DONE_WITH_ERROR: + + cmd->scmd->result = (DID_OK << 16) | hdr->scsi_status; + + if (hdr->scsi_status == SAM_STAT_CHECK_CONDITION) { + memset(cmd->scmd->sense_buffer, 0, + SCSI_SENSE_BUFFERSIZE); + memcpy(cmd->scmd->sense_buffer, cmd->sense, + hdr->sense_len); + + cmd->scmd->result |= DRIVER_SENSE << 24; + } + + break; + + case MFI_STAT_LD_OFFLINE: + case MFI_STAT_DEVICE_NOT_FOUND: + cmd->scmd->result = DID_BAD_TARGET << 16; + break; + + default: + printk(KERN_DEBUG "megasas: MFI FW status %#x\n", + hdr->cmd_status); + cmd->scmd->result = DID_ERROR << 16; + break; + } + + spin_lock_irqsave(&instance->instance_lock, flags); + instance->fw_outstanding--; + spin_unlock_irqrestore(&instance->instance_lock, flags); + + megasas_unmap_sgbuf(instance, cmd); + cmd->scmd->scsi_done(cmd->scmd); + megasas_return_cmd(instance, cmd); + + break; + + case MFI_CMD_SMP: + case MFI_CMD_STP: + case MFI_CMD_DCMD: + + /* + * See if got an event notification + */ + if (cmd->frame->dcmd.opcode == MR_DCMD_CTRL_EVENT_WAIT) + megasas_service_aen(instance, cmd); + else + megasas_complete_int_cmd(instance, cmd); + + break; + + case MFI_CMD_ABORT: + /* + * Cmd issued to abort another cmd returned + */ + megasas_complete_abort(instance, cmd); + break; + + default: + printk("megasas: Unknown command completed! [0x%X]\n", + hdr->cmd); + break; + } +} + +/** + * megasas_deplete_reply_queue - Processes all completed commands + * @instance: Adapter soft state + * @alt_status: Alternate status to be returned to + * SCSI mid-layer instead of the status + * returned by the FW + */ +static inline int +megasas_deplete_reply_queue(struct megasas_instance *instance, u8 alt_status) +{ + u32 status; + u32 producer; + u32 consumer; + u32 context; + struct megasas_cmd *cmd; + + /* + * Check if it is our interrupt + */ + status = readl(&instance->reg_set->outbound_intr_status); + + if (!(status & MFI_OB_INTR_STATUS_MASK)) { + return IRQ_NONE; + } + + /* + * Clear the interrupt by writing back the same value + */ + writel(status, &instance->reg_set->outbound_intr_status); + + producer = *instance->producer; + consumer = *instance->consumer; + + while (consumer != producer) { + context = instance->reply_queue[consumer]; + + cmd = instance->cmd_list[context]; + + megasas_complete_cmd(instance, cmd, alt_status); + + consumer++; + if (consumer == (instance->max_fw_cmds + 1)) { + consumer = 0; + } + } + + *instance->consumer = producer; + + return IRQ_HANDLED; +} + +/** + * megasas_isr - isr entry point + */ +static irqreturn_t megasas_isr(int irq, void *devp, struct pt_regs *regs) +{ + return megasas_deplete_reply_queue((struct megasas_instance *)devp, + DID_OK); +} + +/** + * megasas_transition_to_ready - Move the FW to READY state + * @reg_set: MFI register set + * + * During the initialization, FW passes can potentially be in any one of + * several possible states. If the FW in operational, waiting-for-handshake + * states, driver must take steps to bring it to ready state. Otherwise, it + * has to wait for the ready state. + */ +static int +megasas_transition_to_ready(struct megasas_register_set __iomem * reg_set) +{ + int i; + u8 max_wait; + u32 fw_state; + u32 cur_state; + + fw_state = readl(®_set->outbound_msg_0) & MFI_STATE_MASK; + + while (fw_state != MFI_STATE_READY) { + + printk(KERN_INFO "megasas: Waiting for FW to come to ready" + " state\n"); + switch (fw_state) { + + case MFI_STATE_FAULT: + + printk(KERN_DEBUG "megasas: FW in FAULT state!!\n"); + return -ENODEV; + + case MFI_STATE_WAIT_HANDSHAKE: + /* + * Set the CLR bit in inbound doorbell + */ + writel(MFI_INIT_CLEAR_HANDSHAKE, + ®_set->inbound_doorbell); + + max_wait = 2; + cur_state = MFI_STATE_WAIT_HANDSHAKE; + break; + + case MFI_STATE_OPERATIONAL: + /* + * Bring it to READY state; assuming max wait 2 secs + */ + megasas_disable_intr(reg_set); + writel(MFI_INIT_READY, ®_set->inbound_doorbell); + + max_wait = 10; + cur_state = MFI_STATE_OPERATIONAL; + break; + + case MFI_STATE_UNDEFINED: + /* + * This state should not last for more than 2 seconds + */ + max_wait = 2; + cur_state = MFI_STATE_UNDEFINED; + break; + + case MFI_STATE_BB_INIT: + max_wait = 2; + cur_state = MFI_STATE_BB_INIT; + break; + + case MFI_STATE_FW_INIT: + max_wait = 20; + cur_state = MFI_STATE_FW_INIT; + break; + + case MFI_STATE_FW_INIT_2: + max_wait = 20; + cur_state = MFI_STATE_FW_INIT_2; + break; + + case MFI_STATE_DEVICE_SCAN: + max_wait = 20; + cur_state = MFI_STATE_DEVICE_SCAN; + break; + + case MFI_STATE_FLUSH_CACHE: + max_wait = 20; + cur_state = MFI_STATE_FLUSH_CACHE; + break; + + default: + printk(KERN_DEBUG "megasas: Unknown state 0x%x\n", + fw_state); + return -ENODEV; + } + + /* + * The cur_state should not last for more than max_wait secs + */ + for (i = 0; i < (max_wait * 1000); i++) { + fw_state = MFI_STATE_MASK & + readl(®_set->outbound_msg_0); + + if (fw_state == cur_state) { + msleep(1); + } else + break; + } + + /* + * Return error if fw_state hasn't changed after max_wait + */ + if (fw_state == cur_state) { + printk(KERN_DEBUG "FW state [%d] hasn't changed " + "in %d secs\n", fw_state, max_wait); + return -ENODEV; + } + }; + + return 0; +} + +/** + * megasas_teardown_frame_pool - Destroy the cmd frame DMA pool + * @instance: Adapter soft state + */ +static void megasas_teardown_frame_pool(struct megasas_instance *instance) +{ + int i; + u32 max_cmd = instance->max_fw_cmds; + struct megasas_cmd *cmd; + + if (!instance->frame_dma_pool) + return; + + /* + * Return all frames to pool + */ + for (i = 0; i < max_cmd; i++) { + + cmd = instance->cmd_list[i]; + + if (cmd->frame) + pci_pool_free(instance->frame_dma_pool, cmd->frame, + cmd->frame_phys_addr); + + if (cmd->sense) + pci_pool_free(instance->sense_dma_pool, cmd->frame, + cmd->sense_phys_addr); + } + + /* + * Now destroy the pool itself + */ + pci_pool_destroy(instance->frame_dma_pool); + pci_pool_destroy(instance->sense_dma_pool); + + instance->frame_dma_pool = NULL; + instance->sense_dma_pool = NULL; +} + +/** + * megasas_create_frame_pool - Creates DMA pool for cmd frames + * @instance: Adapter soft state + * + * Each command packet has an embedded DMA memory buffer that is used for + * filling MFI frame and the SG list that immediately follows the frame. This + * function creates those DMA memory buffers for each command packet by using + * PCI pool facility. + */ +static int megasas_create_frame_pool(struct megasas_instance *instance) +{ + int i; + u32 max_cmd; + u32 sge_sz; + u32 sgl_sz; + u32 total_sz; + u32 frame_count; + struct megasas_cmd *cmd; + + max_cmd = instance->max_fw_cmds; + + /* + * Size of our frame is 64 bytes for MFI frame, followed by max SG + * elements and finally SCSI_SENSE_BUFFERSIZE bytes for sense buffer + */ + sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) : + sizeof(struct megasas_sge32); + + /* + * Calculated the number of 64byte frames required for SGL + */ + sgl_sz = sge_sz * instance->max_num_sge; + frame_count = (sgl_sz + MEGAMFI_FRAME_SIZE - 1) / MEGAMFI_FRAME_SIZE; + + /* + * We need one extra frame for the MFI command + */ + frame_count++; + + total_sz = MEGAMFI_FRAME_SIZE * frame_count; + /* + * Use DMA pool facility provided by PCI layer + */ + instance->frame_dma_pool = pci_pool_create("megasas frame pool", + instance->pdev, total_sz, 64, + 0); + + if (!instance->frame_dma_pool) { + printk(KERN_DEBUG "megasas: failed to setup frame pool\n"); + return -ENOMEM; + } + + instance->sense_dma_pool = pci_pool_create("megasas sense pool", + instance->pdev, 128, 4, 0); + + if (!instance->sense_dma_pool) { + printk(KERN_DEBUG "megasas: failed to setup sense pool\n"); + + pci_pool_destroy(instance->frame_dma_pool); + instance->frame_dma_pool = NULL; + + return -ENOMEM; + } + + /* + * Allocate and attach a frame to each of the commands in cmd_list. + * By making cmd->index as the context instead of the &cmd, we can + * always use 32bit context regardless of the architecture + */ + for (i = 0; i < max_cmd; i++) { + + cmd = instance->cmd_list[i]; + + cmd->frame = pci_pool_alloc(instance->frame_dma_pool, + GFP_KERNEL, &cmd->frame_phys_addr); + + cmd->sense = pci_pool_alloc(instance->sense_dma_pool, + GFP_KERNEL, &cmd->sense_phys_addr); + + /* + * megasas_teardown_frame_pool() takes care of freeing + * whatever has been allocated + */ + if (!cmd->frame || !cmd->sense) { + printk(KERN_DEBUG "megasas: pci_pool_alloc failed \n"); + megasas_teardown_frame_pool(instance); + return -ENOMEM; + } + + cmd->frame->io.context = cmd->index; + } + + return 0; +} + +/** + * megasas_free_cmds - Free all the cmds in the free cmd pool + * @instance: Adapter soft state + */ +static void megasas_free_cmds(struct megasas_instance *instance) +{ + int i; + /* First free the MFI frame pool */ + megasas_teardown_frame_pool(instance); + + /* Free all the commands in the cmd_list */ + for (i = 0; i < instance->max_fw_cmds; i++) + kfree(instance->cmd_list[i]); + + /* Free the cmd_list buffer itself */ + kfree(instance->cmd_list); + instance->cmd_list = NULL; + + INIT_LIST_HEAD(&instance->cmd_pool); +} + +/** + * megasas_alloc_cmds - Allocates the command packets + * @instance: Adapter soft state + * + * Each command that is issued to the FW, whether IO commands from the OS or + * internal commands like IOCTLs, are wrapped in local data structure called + * megasas_cmd. The frame embedded in this megasas_cmd is actually issued to + * the FW. + * + * Each frame has a 32-bit field called context (tag). This context is used + * to get back the megasas_cmd from the frame when a frame gets completed in + * the ISR. Typically the address of the megasas_cmd itself would be used as + * the context. But we wanted to keep the differences between 32 and 64 bit + * systems to the mininum. We always use 32 bit integers for the context. In + * this driver, the 32 bit values are the indices into an array cmd_list. + * This array is used only to look up the megasas_cmd given the context. The + * free commands themselves are maintained in a linked list called cmd_pool. + */ +static int megasas_alloc_cmds(struct megasas_instance *instance) +{ + int i; + int j; + u32 max_cmd; + struct megasas_cmd *cmd; + + max_cmd = instance->max_fw_cmds; + + /* + * instance->cmd_list is an array of struct megasas_cmd pointers. + * Allocate the dynamic array first and then allocate individual + * commands. + */ + instance->cmd_list = kmalloc(sizeof(struct megasas_cmd *) * max_cmd, + GFP_KERNEL); + + if (!instance->cmd_list) { + printk(KERN_DEBUG "megasas: out of memory\n"); + return -ENOMEM; + } + + memset(instance->cmd_list, 0, sizeof(struct megasas_cmd *) * max_cmd); + + for (i = 0; i < max_cmd; i++) { + instance->cmd_list[i] = kmalloc(sizeof(struct megasas_cmd), + GFP_KERNEL); + + if (!instance->cmd_list[i]) { + + for (j = 0; j < i; j++) + kfree(instance->cmd_list[j]); + + kfree(instance->cmd_list); + instance->cmd_list = NULL; + + return -ENOMEM; + } + } + + /* + * Add all the commands to command pool (instance->cmd_pool) + */ + for (i = 0; i < max_cmd; i++) { + cmd = instance->cmd_list[i]; + memset(cmd, 0, sizeof(struct megasas_cmd)); + cmd->index = i; + cmd->instance = instance; + + list_add_tail(&cmd->list, &instance->cmd_pool); + } + + /* + * Create a frame pool and assign one frame to each cmd + */ + if (megasas_create_frame_pool(instance)) { + printk(KERN_DEBUG "megasas: Error creating frame DMA pool\n"); + megasas_free_cmds(instance); + } + + return 0; +} + +/** + * megasas_get_controller_info - Returns FW's controller structure + * @instance: Adapter soft state + * @ctrl_info: Controller information structure + * + * Issues an internal command (DCMD) to get the FW's controller structure. + * This information is mainly used to find out the maximum IO transfer per + * command supported by the FW. + */ +static int +megasas_get_ctrl_info(struct megasas_instance *instance, + struct megasas_ctrl_info *ctrl_info) +{ + int ret = 0; + struct megasas_cmd *cmd; + struct megasas_dcmd_frame *dcmd; + struct megasas_ctrl_info *ci; + dma_addr_t ci_h = 0; + + cmd = megasas_get_cmd(instance); + + if (!cmd) { + printk(KERN_DEBUG "megasas: Failed to get a free cmd\n"); + return -ENOMEM; + } + + dcmd = &cmd->frame->dcmd; + + ci = pci_alloc_consistent(instance->pdev, + sizeof(struct megasas_ctrl_info), &ci_h); + + if (!ci) { + printk(KERN_DEBUG "Failed to alloc mem for ctrl info\n"); + megasas_return_cmd(instance, cmd); + return -ENOMEM; + } + + memset(ci, 0, sizeof(*ci)); + memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); + + dcmd->cmd = MFI_CMD_DCMD; + dcmd->cmd_status = 0xFF; + dcmd->sge_count = 1; + dcmd->flags = MFI_FRAME_DIR_READ; + dcmd->timeout = 0; + dcmd->data_xfer_len = sizeof(struct megasas_ctrl_info); + dcmd->opcode = MR_DCMD_CTRL_GET_INFO; + dcmd->sgl.sge32[0].phys_addr = ci_h; + dcmd->sgl.sge32[0].length = sizeof(struct megasas_ctrl_info); + + if (!megasas_issue_polled(instance, cmd)) { + ret = 0; + memcpy(ctrl_info, ci, sizeof(struct megasas_ctrl_info)); + } else { + ret = -1; + } + + pci_free_consistent(instance->pdev, sizeof(struct megasas_ctrl_info), + ci, ci_h); + + megasas_return_cmd(instance, cmd); + return ret; +} + +/** + * megasas_init_mfi - Initializes the FW + * @instance: Adapter soft state + * + * This is the main function for initializing MFI firmware. + */ +static int megasas_init_mfi(struct megasas_instance *instance) +{ + u32 context_sz; + u32 reply_q_sz; + u32 max_sectors_1; + u32 max_sectors_2; + struct megasas_register_set __iomem *reg_set; + + struct megasas_cmd *cmd; + struct megasas_ctrl_info *ctrl_info; + + struct megasas_init_frame *init_frame; + struct megasas_init_queue_info *initq_info; + dma_addr_t init_frame_h; + dma_addr_t initq_info_h; + + /* + * Map the message registers + */ + instance->base_addr = pci_resource_start(instance->pdev, 0); + + if (pci_request_regions(instance->pdev, "megasas: LSI Logic")) { + printk(KERN_DEBUG "megasas: IO memory region busy!\n"); + return -EBUSY; + } + + instance->reg_set = ioremap_nocache(instance->base_addr, 8192); + + if (!instance->reg_set) { + printk(KERN_DEBUG "megasas: Failed to map IO mem\n"); + goto fail_ioremap; + } + + reg_set = instance->reg_set; + + /* + * We expect the FW state to be READY + */ + if (megasas_transition_to_ready(instance->reg_set)) + goto fail_ready_state; + + /* + * Get various operational parameters from status register + */ + instance->max_fw_cmds = readl(®_set->outbound_msg_0) & 0x00FFFF; + instance->max_num_sge = (readl(®_set->outbound_msg_0) & 0xFF0000) >> + 0x10; + /* + * Create a pool of commands + */ + if (megasas_alloc_cmds(instance)) + goto fail_alloc_cmds; + + /* + * Allocate memory for reply queue. Length of reply queue should + * be _one_ more than the maximum commands handled by the firmware. + * + * Note: When FW completes commands, it places corresponding contex + * values in this circular reply queue. This circular queue is a fairly + * typical producer-consumer queue. FW is the producer (of completed + * commands) and the driver is the consumer. + */ + context_sz = sizeof(u32); + reply_q_sz = context_sz * (instance->max_fw_cmds + 1); + + instance->reply_queue = pci_alloc_consistent(instance->pdev, + reply_q_sz, + &instance->reply_queue_h); + + if (!instance->reply_queue) { + printk(KERN_DEBUG "megasas: Out of DMA mem for reply queue\n"); + goto fail_reply_queue; + } + + /* + * Prepare a init frame. Note the init frame points to queue info + * structure. Each frame has SGL allocated after first 64 bytes. For + * this frame - since we don't need any SGL - we use SGL's space as + * queue info structure + * + * We will not get a NULL command below. We just created the pool. + */ + cmd = megasas_get_cmd(instance); + + init_frame = (struct megasas_init_frame *)cmd->frame; + initq_info = (struct megasas_init_queue_info *) + ((unsigned long)init_frame + 64); + + init_frame_h = cmd->frame_phys_addr; + initq_info_h = init_frame_h + 64; + + memset(init_frame, 0, MEGAMFI_FRAME_SIZE); + memset(initq_info, 0, sizeof(struct megasas_init_queue_info)); + + initq_info->reply_queue_entries = instance->max_fw_cmds + 1; + initq_info->reply_queue_start_phys_addr_lo = instance->reply_queue_h; + + initq_info->producer_index_phys_addr_lo = instance->producer_h; + initq_info->consumer_index_phys_addr_lo = instance->consumer_h; + + init_frame->cmd = MFI_CMD_INIT; + init_frame->cmd_status = 0xFF; + init_frame->queue_info_new_phys_addr_lo = initq_info_h; + + init_frame->data_xfer_len = sizeof(struct megasas_init_queue_info); + + /* + * Issue the init frame in polled mode + */ + if (megasas_issue_polled(instance, cmd)) { + printk(KERN_DEBUG "megasas: Failed to init firmware\n"); + goto fail_fw_init; + } + + megasas_return_cmd(instance, cmd); + + ctrl_info = kmalloc(sizeof(struct megasas_ctrl_info), GFP_KERNEL); + + /* + * Compute the max allowed sectors per IO: The controller info has two + * limits on max sectors. Driver should use the minimum of these two. + * + * 1 << stripe_sz_ops.min = max sectors per strip + * + * Note that older firmwares ( < FW ver 30) didn't report information + * to calculate max_sectors_1. So the number ended up as zero always. + */ + if (ctrl_info && !megasas_get_ctrl_info(instance, ctrl_info)) { + + max_sectors_1 = (1 << ctrl_info->stripe_sz_ops.min) * + ctrl_info->max_strips_per_io; + max_sectors_2 = ctrl_info->max_request_size; + + instance->max_sectors_per_req = (max_sectors_1 < max_sectors_2) + ? max_sectors_1 : max_sectors_2; + } else + instance->max_sectors_per_req = instance->max_num_sge * + PAGE_SIZE / 512; + + kfree(ctrl_info); + + return 0; + + fail_fw_init: + megasas_return_cmd(instance, cmd); + + pci_free_consistent(instance->pdev, reply_q_sz, + instance->reply_queue, instance->reply_queue_h); + fail_reply_queue: + megasas_free_cmds(instance); + + fail_alloc_cmds: + fail_ready_state: + iounmap(instance->reg_set); + + fail_ioremap: + pci_release_regions(instance->pdev); + + return -EINVAL; +} + +/** + * megasas_release_mfi - Reverses the FW initialization + * @intance: Adapter soft state + */ +static void megasas_release_mfi(struct megasas_instance *instance) +{ + u32 reply_q_sz = sizeof(u32) * (instance->max_fw_cmds + 1); + + pci_free_consistent(instance->pdev, reply_q_sz, + instance->reply_queue, instance->reply_queue_h); + + megasas_free_cmds(instance); + + iounmap(instance->reg_set); + + pci_release_regions(instance->pdev); +} + +/** + * megasas_get_seq_num - Gets latest event sequence numbers + * @instance: Adapter soft state + * @eli: FW event log sequence numbers information + * + * FW maintains a log of all events in a non-volatile area. Upper layers would + * usually find out the latest sequence number of the events, the seq number at + * the boot etc. They would "read" all the events below the latest seq number + * by issuing a direct fw cmd (DCMD). For the future events (beyond latest seq + * number), they would subsribe to AEN (asynchronous event notification) and + * wait for the events to happen. + */ +static int +megasas_get_seq_num(struct megasas_instance *instance, + struct megasas_evt_log_info *eli) +{ + struct megasas_cmd *cmd; + struct megasas_dcmd_frame *dcmd; + struct megasas_evt_log_info *el_info; + dma_addr_t el_info_h = 0; + + cmd = megasas_get_cmd(instance); + + if (!cmd) { + return -ENOMEM; + } + + dcmd = &cmd->frame->dcmd; + el_info = pci_alloc_consistent(instance->pdev, + sizeof(struct megasas_evt_log_info), + &el_info_h); + + if (!el_info) { + megasas_return_cmd(instance, cmd); + return -ENOMEM; + } + + memset(el_info, 0, sizeof(*el_info)); + memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); + + dcmd->cmd = MFI_CMD_DCMD; + dcmd->cmd_status = 0x0; + dcmd->sge_count = 1; + dcmd->flags = MFI_FRAME_DIR_READ; + dcmd->timeout = 0; + dcmd->data_xfer_len = sizeof(struct megasas_evt_log_info); + dcmd->opcode = MR_DCMD_CTRL_EVENT_GET_INFO; + dcmd->sgl.sge32[0].phys_addr = el_info_h; + dcmd->sgl.sge32[0].length = sizeof(struct megasas_evt_log_info); + + megasas_issue_blocked_cmd(instance, cmd); + + /* + * Copy the data back into callers buffer + */ + memcpy(eli, el_info, sizeof(struct megasas_evt_log_info)); + + pci_free_consistent(instance->pdev, sizeof(struct megasas_evt_log_info), + el_info, el_info_h); + + megasas_return_cmd(instance, cmd); + + return 0; +} + +/** + * megasas_register_aen - Registers for asynchronous event notification + * @instance: Adapter soft state + * @seq_num: The starting sequence number + * @class_locale: Class of the event + * + * This function subscribes for AEN for events beyond the @seq_num. It requests + * to be notified if and only if the event is of type @class_locale + */ +static int +megasas_register_aen(struct megasas_instance *instance, u32 seq_num, + u32 class_locale_word) +{ + int ret_val; + struct megasas_cmd *cmd; + struct megasas_dcmd_frame *dcmd; + union megasas_evt_class_locale curr_aen; + union megasas_evt_class_locale prev_aen; + + /* + * If there an AEN pending already (aen_cmd), check if the + * class_locale of that pending AEN is inclusive of the new + * AEN request we currently have. If it is, then we don't have + * to do anything. In other words, whichever events the current + * AEN request is subscribing to, have already been subscribed + * to. + * + * If the old_cmd is _not_ inclusive, then we have to abort + * that command, form a class_locale that is superset of both + * old and current and re-issue to the FW + */ + + curr_aen.word = class_locale_word; + + if (instance->aen_cmd) { + + prev_aen.word = instance->aen_cmd->frame->dcmd.mbox.w[1]; + + /* + * A class whose enum value is smaller is inclusive of all + * higher values. If a PROGRESS (= -1) was previously + * registered, then a new registration requests for higher + * classes need not be sent to FW. They are automatically + * included. + * + * Locale numbers don't have such hierarchy. They are bitmap + * values + */ + if ((prev_aen.members.class <= curr_aen.members.class) && + !((prev_aen.members.locale & curr_aen.members.locale) ^ + curr_aen.members.locale)) { + /* + * Previously issued event registration includes + * current request. Nothing to do. + */ + return 0; + } else { + curr_aen.members.locale |= prev_aen.members.locale; + + if (prev_aen.members.class < curr_aen.members.class) + curr_aen.members.class = prev_aen.members.class; + + instance->aen_cmd->abort_aen = 1; + ret_val = megasas_issue_blocked_abort_cmd(instance, + instance-> + aen_cmd); + + if (ret_val) { + printk(KERN_DEBUG "megasas: Failed to abort " + "previous AEN command\n"); + return ret_val; + } + } + } + + cmd = megasas_get_cmd(instance); + + if (!cmd) + return -ENOMEM; + + dcmd = &cmd->frame->dcmd; + + memset(instance->evt_detail, 0, sizeof(struct megasas_evt_detail)); + + /* + * Prepare DCMD for aen registration + */ + memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); + + dcmd->cmd = MFI_CMD_DCMD; + dcmd->cmd_status = 0x0; + dcmd->sge_count = 1; + dcmd->flags = MFI_FRAME_DIR_READ; + dcmd->timeout = 0; + dcmd->data_xfer_len = sizeof(struct megasas_evt_detail); + dcmd->opcode = MR_DCMD_CTRL_EVENT_WAIT; + dcmd->mbox.w[0] = seq_num; + dcmd->mbox.w[1] = curr_aen.word; + dcmd->sgl.sge32[0].phys_addr = (u32) instance->evt_detail_h; + dcmd->sgl.sge32[0].length = sizeof(struct megasas_evt_detail); + + /* + * Store reference to the cmd used to register for AEN. When an + * application wants us to register for AEN, we have to abort this + * cmd and re-register with a new EVENT LOCALE supplied by that app + */ + instance->aen_cmd = cmd; + + /* + * Issue the aen registration frame + */ + writel(cmd->frame_phys_addr >> 3, + &instance->reg_set->inbound_queue_port); + + return 0; +} + +/** + * megasas_start_aen - Subscribes to AEN during driver load time + * @instance: Adapter soft state + */ +static int megasas_start_aen(struct megasas_instance *instance) +{ + struct megasas_evt_log_info eli; + union megasas_evt_class_locale class_locale; + + /* + * Get the latest sequence number from FW + */ + memset(&eli, 0, sizeof(eli)); + + if (megasas_get_seq_num(instance, &eli)) + return -1; + + /* + * Register AEN with FW for latest sequence number plus 1 + */ + class_locale.members.reserved = 0; + class_locale.members.locale = MR_EVT_LOCALE_ALL; + class_locale.members.class = MR_EVT_CLASS_DEBUG; + + return megasas_register_aen(instance, eli.newest_seq_num + 1, + class_locale.word); +} + +/** + * megasas_io_attach - Attaches this driver to SCSI mid-layer + * @instance: Adapter soft state + */ +static int megasas_io_attach(struct megasas_instance *instance) +{ + struct Scsi_Host *host = instance->host; + + /* + * Export parameters required by SCSI mid-layer + */ + host->irq = instance->pdev->irq; + host->unique_id = instance->unique_id; + host->can_queue = instance->max_fw_cmds - MEGASAS_INT_CMDS; + host->this_id = instance->init_id; + host->sg_tablesize = instance->max_num_sge; + host->max_sectors = instance->max_sectors_per_req; + host->cmd_per_lun = 128; + host->max_channel = MEGASAS_MAX_CHANNELS - 1; + host->max_id = MEGASAS_MAX_DEV_PER_CHANNEL; + host->max_lun = MEGASAS_MAX_LUN; + + /* + * Notify the mid-layer about the new controller + */ + if (scsi_add_host(host, &instance->pdev->dev)) { + printk(KERN_DEBUG "megasas: scsi_add_host failed\n"); + return -ENODEV; + } + + /* + * Trigger SCSI to scan our drives + */ + scsi_scan_host(host); + return 0; +} + +/** + * megasas_probe_one - PCI hotplug entry point + * @pdev: PCI device structure + * @id: PCI ids of supported hotplugged adapter + */ +static int __devinit +megasas_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) +{ + int rval; + struct Scsi_Host *host; + struct megasas_instance *instance; + + /* + * Announce PCI information + */ + printk(KERN_INFO "megasas: %#4.04x:%#4.04x:%#4.04x:%#4.04x: ", + pdev->vendor, pdev->device, pdev->subsystem_vendor, + pdev->subsystem_device); + + printk("bus %d:slot %d:func %d\n", + pdev->bus->number, PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn)); + + /* + * PCI prepping: enable device set bus mastering and dma mask + */ + rval = pci_enable_device(pdev); + + if (rval) { + return rval; + } + + pci_set_master(pdev); + + /* + * All our contollers are capable of performing 64-bit DMA + */ + if (IS_DMA64) { + if (pci_set_dma_mask(pdev, DMA_64BIT_MASK) != 0) { + + if (pci_set_dma_mask(pdev, DMA_32BIT_MASK) != 0) + goto fail_set_dma_mask; + } + } else { + if (pci_set_dma_mask(pdev, DMA_32BIT_MASK) != 0) + goto fail_set_dma_mask; + } + + host = scsi_host_alloc(&megasas_template, + sizeof(struct megasas_instance)); + + if (!host) { + printk(KERN_DEBUG "megasas: scsi_host_alloc failed\n"); + goto fail_alloc_instance; + } + + instance = (struct megasas_instance *)host->hostdata; + memset(instance, 0, sizeof(*instance)); + + instance->producer = pci_alloc_consistent(pdev, sizeof(u32), + &instance->producer_h); + instance->consumer = pci_alloc_consistent(pdev, sizeof(u32), + &instance->consumer_h); + + if (!instance->producer || !instance->consumer) { + printk(KERN_DEBUG "megasas: Failed to allocate memory for " + "producer, consumer\n"); + goto fail_alloc_dma_buf; + } + + *instance->producer = 0; + *instance->consumer = 0; + + instance->evt_detail = pci_alloc_consistent(pdev, + sizeof(struct + megasas_evt_detail), + &instance->evt_detail_h); + + if (!instance->evt_detail) { + printk(KERN_DEBUG "megasas: Failed to allocate memory for " + "event detail structure\n"); + goto fail_alloc_dma_buf; + } + + /* + * Initialize locks and queues + */ + INIT_LIST_HEAD(&instance->cmd_pool); + + init_waitqueue_head(&instance->int_cmd_wait_q); + init_waitqueue_head(&instance->abort_cmd_wait_q); + + spin_lock_init(&instance->cmd_pool_lock); + spin_lock_init(&instance->instance_lock); + + sema_init(&instance->aen_mutex, 1); + sema_init(&instance->ioctl_sem, MEGASAS_INT_CMDS); + + /* + * Initialize PCI related and misc parameters + */ + instance->pdev = pdev; + instance->host = host; + instance->unique_id = pdev->bus->number << 8 | pdev->devfn; + instance->init_id = MEGASAS_DEFAULT_INIT_ID; + + /* + * Initialize MFI Firmware + */ + if (megasas_init_mfi(instance)) + goto fail_init_mfi; + + /* + * Register IRQ + */ + if (request_irq(pdev->irq, megasas_isr, SA_SHIRQ, "megasas", instance)) { + printk(KERN_DEBUG "megasas: Failed to register IRQ\n"); + goto fail_irq; + } + + megasas_enable_intr(instance->reg_set); + + /* + * Store instance in PCI softstate + */ + pci_set_drvdata(pdev, instance); + + /* + * Add this controller to megasas_mgmt_info structure so that it + * can be exported to management applications + */ + megasas_mgmt_info.count++; + megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = instance; + megasas_mgmt_info.max_index++; + + /* + * Initiate AEN (Asynchronous Event Notification) + */ + if (megasas_start_aen(instance)) { + printk(KERN_DEBUG "megasas: start aen failed\n"); + goto fail_start_aen; + } + + /* + * Register with SCSI mid-layer + */ + if (megasas_io_attach(instance)) + goto fail_io_attach; + + return 0; + + fail_start_aen: + fail_io_attach: + megasas_mgmt_info.count--; + megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = NULL; + megasas_mgmt_info.max_index--; + + pci_set_drvdata(pdev, NULL); + megasas_disable_intr(instance->reg_set); + free_irq(instance->pdev->irq, instance); + + megasas_release_mfi(instance); + + fail_irq: + fail_init_mfi: + fail_alloc_dma_buf: + if (instance->evt_detail) + pci_free_consistent(pdev, sizeof(struct megasas_evt_detail), + instance->evt_detail, + instance->evt_detail_h); + + if (instance->producer) + pci_free_consistent(pdev, sizeof(u32), instance->producer, + instance->producer_h); + if (instance->consumer) + pci_free_consistent(pdev, sizeof(u32), instance->consumer, + instance->consumer_h); + scsi_host_put(host); + + fail_alloc_instance: + fail_set_dma_mask: + pci_disable_device(pdev); + + return -ENODEV; +} + +/** + * megasas_flush_cache - Requests FW to flush all its caches + * @instance: Adapter soft state + */ +static void megasas_flush_cache(struct megasas_instance *instance) +{ + struct megasas_cmd *cmd; + struct megasas_dcmd_frame *dcmd; + + cmd = megasas_get_cmd(instance); + + if (!cmd) + return; + + dcmd = &cmd->frame->dcmd; + + memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); + + dcmd->cmd = MFI_CMD_DCMD; + dcmd->cmd_status = 0x0; + dcmd->sge_count = 0; + dcmd->flags = MFI_FRAME_DIR_NONE; + dcmd->timeout = 0; + dcmd->data_xfer_len = 0; + dcmd->opcode = MR_DCMD_CTRL_CACHE_FLUSH; + dcmd->mbox.b[0] = MR_FLUSH_CTRL_CACHE | MR_FLUSH_DISK_CACHE; + + megasas_issue_blocked_cmd(instance, cmd); + + megasas_return_cmd(instance, cmd); + + return; +} + +/** + * megasas_shutdown_controller - Instructs FW to shutdown the controller + * @instance: Adapter soft state + */ +static void megasas_shutdown_controller(struct megasas_instance *instance) +{ + struct megasas_cmd *cmd; + struct megasas_dcmd_frame *dcmd; + + cmd = megasas_get_cmd(instance); + + if (!cmd) + return; + + if (instance->aen_cmd) + megasas_issue_blocked_abort_cmd(instance, instance->aen_cmd); + + dcmd = &cmd->frame->dcmd; + + memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); + + dcmd->cmd = MFI_CMD_DCMD; + dcmd->cmd_status = 0x0; + dcmd->sge_count = 0; + dcmd->flags = MFI_FRAME_DIR_NONE; + dcmd->timeout = 0; + dcmd->data_xfer_len = 0; + dcmd->opcode = MR_DCMD_CTRL_SHUTDOWN; + + megasas_issue_blocked_cmd(instance, cmd); + + megasas_return_cmd(instance, cmd); + + return; +} + +/** + * megasas_detach_one - PCI hot"un"plug entry point + * @pdev: PCI device structure + */ +static void megasas_detach_one(struct pci_dev *pdev) +{ + int i; + struct Scsi_Host *host; + struct megasas_instance *instance; + + instance = pci_get_drvdata(pdev); + host = instance->host; + + scsi_remove_host(instance->host); + megasas_flush_cache(instance); + megasas_shutdown_controller(instance); + + /* + * Take the instance off the instance array. Note that we will not + * decrement the max_index. We let this array be sparse array + */ + for (i = 0; i < megasas_mgmt_info.max_index; i++) { + if (megasas_mgmt_info.instance[i] == instance) { + megasas_mgmt_info.count--; + megasas_mgmt_info.instance[i] = NULL; + + break; + } + } + + pci_set_drvdata(instance->pdev, NULL); + + megasas_disable_intr(instance->reg_set); + + free_irq(instance->pdev->irq, instance); + + megasas_release_mfi(instance); + + pci_free_consistent(pdev, sizeof(struct megasas_evt_detail), + instance->evt_detail, instance->evt_detail_h); + + pci_free_consistent(pdev, sizeof(u32), instance->producer, + instance->producer_h); + + pci_free_consistent(pdev, sizeof(u32), instance->consumer, + instance->consumer_h); + + scsi_host_put(host); + + pci_set_drvdata(pdev, NULL); + + pci_disable_device(pdev); + + return; +} + +/** + * megasas_shutdown - Shutdown entry point + * @device: Generic device structure + */ +static void megasas_shutdown(struct pci_dev *pdev) +{ + struct megasas_instance *instance = pci_get_drvdata(pdev); + megasas_flush_cache(instance); +} + +/** + * megasas_mgmt_open - char node "open" entry point + */ +static int megasas_mgmt_open(struct inode *inode, struct file *filep) +{ + /* + * Allow only those users with admin rights + */ + if (!capable(CAP_SYS_ADMIN)) + return -EACCES; + + return 0; +} + +/** + * megasas_mgmt_release - char node "release" entry point + */ +static int megasas_mgmt_release(struct inode *inode, struct file *filep) +{ + filep->private_data = NULL; + fasync_helper(-1, filep, 0, &megasas_async_queue); + + return 0; +} + +/** + * megasas_mgmt_fasync - Async notifier registration from applications + * + * This function adds the calling process to a driver global queue. When an + * event occurs, SIGIO will be sent to all processes in this queue. + */ +static int megasas_mgmt_fasync(int fd, struct file *filep, int mode) +{ + int rc; + + down(&megasas_async_queue_mutex); + + rc = fasync_helper(fd, filep, mode, &megasas_async_queue); + + up(&megasas_async_queue_mutex); + + if (rc >= 0) { + /* For sanity check when we get ioctl */ + filep->private_data = filep; + return 0; + } + + printk(KERN_DEBUG "megasas: fasync_helper failed [%d]\n", rc); + + return rc; +} + +/** + * megasas_mgmt_fw_ioctl - Issues management ioctls to FW + * @instance: Adapter soft state + * @argp: User's ioctl packet + */ +static int +megasas_mgmt_fw_ioctl(struct megasas_instance *instance, + struct megasas_iocpacket __user * user_ioc, + struct megasas_iocpacket *ioc) +{ + struct megasas_sge32 *kern_sge32; + struct megasas_cmd *cmd; + void *kbuff_arr[MAX_IOCTL_SGE]; + dma_addr_t buf_handle = 0; + int error = 0, i; + void *sense = NULL; + dma_addr_t sense_handle; + u32 *sense_ptr; + + memset(kbuff_arr, 0, sizeof(kbuff_arr)); + + if (ioc->sge_count > MAX_IOCTL_SGE) { + printk(KERN_DEBUG "megasas: SGE count [%d] > max limit [%d]\n", + ioc->sge_count, MAX_IOCTL_SGE); + return -EINVAL; + } + + cmd = megasas_get_cmd(instance); + if (!cmd) { + printk(KERN_DEBUG "megasas: Failed to get a cmd packet\n"); + return -ENOMEM; + } + + /* + * User's IOCTL packet has 2 frames (maximum). Copy those two + * frames into our cmd's frames. cmd->frame's context will get + * overwritten when we copy from user's frames. So set that value + * alone separately + */ + memcpy(cmd->frame, ioc->frame.raw, 2 * MEGAMFI_FRAME_SIZE); + cmd->frame->hdr.context = cmd->index; + + /* + * The management interface between applications and the fw uses + * MFI frames. E.g, RAID configuration changes, LD property changes + * etc are accomplishes through different kinds of MFI frames. The + * driver needs to care only about substituting user buffers with + * kernel buffers in SGLs. The location of SGL is embedded in the + * struct iocpacket itself. + */ + kern_sge32 = (struct megasas_sge32 *) + ((unsigned long)cmd->frame + ioc->sgl_off); + + /* + * For each user buffer, create a mirror buffer and copy in + */ + for (i = 0; i < ioc->sge_count; i++) { + kbuff_arr[i] = pci_alloc_consistent(instance->pdev, + ioc->sgl[i].iov_len, + &buf_handle); + if (!kbuff_arr[i]) { + printk(KERN_DEBUG "megasas: Failed to alloc " + "kernel SGL buffer for IOCTL \n"); + error = -ENOMEM; + goto out; + } + + /* + * We don't change the dma_coherent_mask, so + * pci_alloc_consistent only returns 32bit addresses + */ + kern_sge32[i].phys_addr = (u32) buf_handle; + kern_sge32[i].length = ioc->sgl[i].iov_len; + + /* + * We created a kernel buffer corresponding to the + * user buffer. Now copy in from the user buffer + */ + if (copy_from_user(kbuff_arr[i], ioc->sgl[i].iov_base, + (u32) (ioc->sgl[i].iov_len))) { + error = -EFAULT; + goto out; + } + } + + if (ioc->sense_len) { + sense = pci_alloc_consistent(instance->pdev, ioc->sense_len, + &sense_handle); + if (!sense) { + error = -ENOMEM; + goto out; + } + + sense_ptr = + (u32 *) ((unsigned long)cmd->frame + ioc->sense_off); + *sense_ptr = sense_handle; + } + + /* + * Set the sync_cmd flag so that the ISR knows not to complete this + * cmd to the SCSI mid-layer + */ + cmd->sync_cmd = 1; + megasas_issue_blocked_cmd(instance, cmd); + cmd->sync_cmd = 0; + + /* + * copy out the kernel buffers to user buffers + */ + for (i = 0; i < ioc->sge_count; i++) { + if (copy_to_user(ioc->sgl[i].iov_base, kbuff_arr[i], + ioc->sgl[i].iov_len)) { + error = -EFAULT; + goto out; + } + } + + /* + * copy out the sense + */ + if (ioc->sense_len) { + /* + * sense_ptr points to the location that has the user + * sense buffer address + */ + sense_ptr = (u32 *) ((unsigned long)ioc->frame.raw + + ioc->sense_off); + + if (copy_to_user((void __user *)((unsigned long)(*sense_ptr)), + sense, ioc->sense_len)) { + error = -EFAULT; + goto out; + } + } + + /* + * copy the status codes returned by the fw + */ + if (copy_to_user(&user_ioc->frame.hdr.cmd_status, + &cmd->frame->hdr.cmd_status, sizeof(u8))) { + printk(KERN_DEBUG "megasas: Error copying out cmd_status\n"); + error = -EFAULT; + } + + out: + if (sense) { + pci_free_consistent(instance->pdev, ioc->sense_len, + sense, sense_handle); + } + + for (i = 0; i < ioc->sge_count && kbuff_arr[i]; i++) { + pci_free_consistent(instance->pdev, + kern_sge32[i].length, + kbuff_arr[i], kern_sge32[i].phys_addr); + } + + megasas_return_cmd(instance, cmd); + return error; +} + +static struct megasas_instance *megasas_lookup_instance(u16 host_no) +{ + int i; + + for (i = 0; i < megasas_mgmt_info.max_index; i++) { + + if ((megasas_mgmt_info.instance[i]) && + (megasas_mgmt_info.instance[i]->host->host_no == host_no)) + return megasas_mgmt_info.instance[i]; + } + + return NULL; +} + +static int megasas_mgmt_ioctl_fw(struct file *file, unsigned long arg) +{ + struct megasas_iocpacket __user *user_ioc = + (struct megasas_iocpacket __user *)arg; + struct megasas_iocpacket *ioc; + struct megasas_instance *instance; + int error; + + ioc = kmalloc(sizeof(*ioc), GFP_KERNEL); + if (!ioc) + return -ENOMEM; + + if (copy_from_user(ioc, user_ioc, sizeof(*ioc))) { + error = -EFAULT; + goto out_kfree_ioc; + } + + instance = megasas_lookup_instance(ioc->host_no); + if (!instance) { + error = -ENODEV; + goto out_kfree_ioc; + } + + /* + * We will allow only MEGASAS_INT_CMDS number of parallel ioctl cmds + */ + if (down_interruptible(&instance->ioctl_sem)) { + error = -ERESTARTSYS; + goto out_kfree_ioc; + } + error = megasas_mgmt_fw_ioctl(instance, user_ioc, ioc); + up(&instance->ioctl_sem); + + out_kfree_ioc: + kfree(ioc); + return error; +} + +static int megasas_mgmt_ioctl_aen(struct file *file, unsigned long arg) +{ + struct megasas_instance *instance; + struct megasas_aen aen; + int error; + + if (file->private_data != file) { + printk(KERN_DEBUG "megasas: fasync_helper was not " + "called first\n"); + return -EINVAL; + } + + if (copy_from_user(&aen, (void __user *)arg, sizeof(aen))) + return -EFAULT; + + instance = megasas_lookup_instance(aen.host_no); + + if (!instance) + return -ENODEV; + + down(&instance->aen_mutex); + error = megasas_register_aen(instance, aen.seq_num, + aen.class_locale_word); + up(&instance->aen_mutex); + return error; +} + +/** + * megasas_mgmt_ioctl - char node ioctl entry point + */ +static long +megasas_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg) +{ + switch (cmd) { + case MEGASAS_IOC_FIRMWARE: + return megasas_mgmt_ioctl_fw(file, arg); + + case MEGASAS_IOC_GET_AEN: + return megasas_mgmt_ioctl_aen(file, arg); + } + + return -ENOTTY; +} + +#ifdef CONFIG_COMPAT +static int megasas_mgmt_compat_ioctl_fw(struct file *file, unsigned long arg) +{ + struct compat_megasas_iocpacket __user *cioc = + (struct compat_megasas_iocpacket __user *)arg; + struct megasas_iocpacket __user *ioc = + compat_alloc_user_space(sizeof(struct megasas_iocpacket)); + int i; + int error = 0; + + clear_user(ioc, sizeof(*ioc)); + + if (copy_in_user(&ioc->host_no, &cioc->host_no, sizeof(u16)) || + copy_in_user(&ioc->sgl_off, &cioc->sgl_off, sizeof(u32)) || + copy_in_user(&ioc->sense_off, &cioc->sense_off, sizeof(u32)) || + copy_in_user(&ioc->sense_len, &cioc->sense_len, sizeof(u32)) || + copy_in_user(ioc->frame.raw, cioc->frame.raw, 128) || + copy_in_user(&ioc->sge_count, &cioc->sge_count, sizeof(u32))) + return -EFAULT; + + for (i = 0; i < MAX_IOCTL_SGE; i++) { + compat_uptr_t ptr; + + if (get_user(ptr, &cioc->sgl[i].iov_base) || + put_user(compat_ptr(ptr), &ioc->sgl[i].iov_base) || + copy_in_user(&ioc->sgl[i].iov_len, + &cioc->sgl[i].iov_len, sizeof(compat_size_t))) + return -EFAULT; + } + + error = megasas_mgmt_ioctl_fw(file, (unsigned long)ioc); + + if (copy_in_user(&cioc->frame.hdr.cmd_status, + &ioc->frame.hdr.cmd_status, sizeof(u8))) { + printk(KERN_DEBUG "megasas: error copy_in_user cmd_status\n"); + return -EFAULT; + } + return error; +} + +static long +megasas_mgmt_compat_ioctl(struct file *file, unsigned int cmd, + unsigned long arg) +{ + switch (cmd) { + case MEGASAS_IOC_FIRMWARE:{ + return megasas_mgmt_compat_ioctl_fw(file, arg); + } + case MEGASAS_IOC_GET_AEN: + return megasas_mgmt_ioctl_aen(file, arg); + } + + return -ENOTTY; +} +#endif + +/* + * File operations structure for management interface + */ +static struct file_operations megasas_mgmt_fops = { + .owner = THIS_MODULE, + .open = megasas_mgmt_open, + .release = megasas_mgmt_release, + .fasync = megasas_mgmt_fasync, + .unlocked_ioctl = megasas_mgmt_ioctl, +#ifdef CONFIG_COMPAT + .compat_ioctl = megasas_mgmt_compat_ioctl, +#endif +}; + +/* + * PCI hotplug support registration structure + */ +static struct pci_driver megasas_pci_driver = { + + .name = "megaraid_sas", + .id_table = megasas_pci_table, + .probe = megasas_probe_one, + .remove = __devexit_p(megasas_detach_one), + .shutdown = megasas_shutdown, +}; + +/* + * Sysfs driver attributes + */ +static ssize_t megasas_sysfs_show_version(struct device_driver *dd, char *buf) +{ + return snprintf(buf, strlen(MEGASAS_VERSION) + 2, "%s\n", + MEGASAS_VERSION); +} + +static DRIVER_ATTR(version, S_IRUGO, megasas_sysfs_show_version, NULL); + +static ssize_t +megasas_sysfs_show_release_date(struct device_driver *dd, char *buf) +{ + return snprintf(buf, strlen(MEGASAS_RELDATE) + 2, "%s\n", + MEGASAS_RELDATE); +} + +static DRIVER_ATTR(release_date, S_IRUGO, megasas_sysfs_show_release_date, + NULL); + +/** + * megasas_init - Driver load entry point + */ +static int __init megasas_init(void) +{ + int rval; + + /* + * Announce driver version and other information + */ + printk(KERN_INFO "megasas: %s %s\n", MEGASAS_VERSION, + MEGASAS_EXT_VERSION); + + memset(&megasas_mgmt_info, 0, sizeof(megasas_mgmt_info)); + + /* + * Register character device node + */ + rval = register_chrdev(0, "megaraid_sas_ioctl", &megasas_mgmt_fops); + + if (rval < 0) { + printk(KERN_DEBUG "megasas: failed to open device node\n"); + return rval; + } + + megasas_mgmt_majorno = rval; + + /* + * Register ourselves as PCI hotplug module + */ + rval = pci_module_init(&megasas_pci_driver); + + if (rval) { + printk(KERN_DEBUG "megasas: PCI hotplug regisration failed \n"); + unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl"); + } + + driver_create_file(&megasas_pci_driver.driver, &driver_attr_version); + driver_create_file(&megasas_pci_driver.driver, + &driver_attr_release_date); + + return rval; +} + +/** + * megasas_exit - Driver unload entry point + */ +static void __exit megasas_exit(void) +{ + driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version); + driver_remove_file(&megasas_pci_driver.driver, + &driver_attr_release_date); + + pci_unregister_driver(&megasas_pci_driver); + unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl"); +} + +module_init(megasas_init); +module_exit(megasas_exit); diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h new file mode 100644 index 000000000000..eaec9d531424 --- /dev/null +++ b/drivers/scsi/megaraid/megaraid_sas.h @@ -0,0 +1,1142 @@ +/* + * + * Linux MegaRAID driver for SAS based RAID controllers + * + * Copyright (c) 2003-2005 LSI Logic Corporation. + * + * 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. + * + * FILE : megaraid_sas.h + */ + +#ifndef LSI_MEGARAID_SAS_H +#define LSI_MEGARAID_SAS_H + +/** + * MegaRAID SAS Driver meta data + */ +#define MEGASAS_VERSION "00.00.02.00-rc4" +#define MEGASAS_RELDATE "Sep 16, 2005" +#define MEGASAS_EXT_VERSION "Fri Sep 16 12:37:08 EDT 2005" + +/* + * ===================================== + * MegaRAID SAS MFI firmware definitions + * ===================================== + */ + +/* + * MFI stands for MegaRAID SAS FW Interface. This is just a moniker for + * protocol between the software and firmware. Commands are issued using + * "message frames" + */ + +/** + * FW posts its state in upper 4 bits of outbound_msg_0 register + */ +#define MFI_STATE_MASK 0xF0000000 +#define MFI_STATE_UNDEFINED 0x00000000 +#define MFI_STATE_BB_INIT 0x10000000 +#define MFI_STATE_FW_INIT 0x40000000 +#define MFI_STATE_WAIT_HANDSHAKE 0x60000000 +#define MFI_STATE_FW_INIT_2 0x70000000 +#define MFI_STATE_DEVICE_SCAN 0x80000000 +#define MFI_STATE_FLUSH_CACHE 0xA0000000 +#define MFI_STATE_READY 0xB0000000 +#define MFI_STATE_OPERATIONAL 0xC0000000 +#define MFI_STATE_FAULT 0xF0000000 + +#define MEGAMFI_FRAME_SIZE 64 + +/** + * During FW init, clear pending cmds & reset state using inbound_msg_0 + * + * ABORT : Abort all pending cmds + * READY : Move from OPERATIONAL to READY state; discard queue info + * MFIMODE : Discard (possible) low MFA posted in 64-bit mode (??) + * CLR_HANDSHAKE: FW is waiting for HANDSHAKE from BIOS or Driver + */ +#define MFI_INIT_ABORT 0x00000000 +#define MFI_INIT_READY 0x00000002 +#define MFI_INIT_MFIMODE 0x00000004 +#define MFI_INIT_CLEAR_HANDSHAKE 0x00000008 +#define MFI_RESET_FLAGS MFI_INIT_READY|MFI_INIT_MFIMODE + +/** + * MFI frame flags + */ +#define MFI_FRAME_POST_IN_REPLY_QUEUE 0x0000 +#define MFI_FRAME_DONT_POST_IN_REPLY_QUEUE 0x0001 +#define MFI_FRAME_SGL32 0x0000 +#define MFI_FRAME_SGL64 0x0002 +#define MFI_FRAME_SENSE32 0x0000 +#define MFI_FRAME_SENSE64 0x0004 +#define MFI_FRAME_DIR_NONE 0x0000 +#define MFI_FRAME_DIR_WRITE 0x0008 +#define MFI_FRAME_DIR_READ 0x0010 +#define MFI_FRAME_DIR_BOTH 0x0018 + +/** + * Definition for cmd_status + */ +#define MFI_CMD_STATUS_POLL_MODE 0xFF + +/** + * MFI command opcodes + */ +#define MFI_CMD_INIT 0x00 +#define MFI_CMD_LD_READ 0x01 +#define MFI_CMD_LD_WRITE 0x02 +#define MFI_CMD_LD_SCSI_IO 0x03 +#define MFI_CMD_PD_SCSI_IO 0x04 +#define MFI_CMD_DCMD 0x05 +#define MFI_CMD_ABORT 0x06 +#define MFI_CMD_SMP 0x07 +#define MFI_CMD_STP 0x08 + +#define MR_DCMD_CTRL_GET_INFO 0x01010000 + +#define MR_DCMD_CTRL_CACHE_FLUSH 0x01101000 +#define MR_FLUSH_CTRL_CACHE 0x01 +#define MR_FLUSH_DISK_CACHE 0x02 + +#define MR_DCMD_CTRL_SHUTDOWN 0x01050000 +#define MR_ENABLE_DRIVE_SPINDOWN 0x01 + +#define MR_DCMD_CTRL_EVENT_GET_INFO 0x01040100 +#define MR_DCMD_CTRL_EVENT_GET 0x01040300 +#define MR_DCMD_CTRL_EVENT_WAIT 0x01040500 +#define MR_DCMD_LD_GET_PROPERTIES 0x03030000 + +#define MR_DCMD_CLUSTER 0x08000000 +#define MR_DCMD_CLUSTER_RESET_ALL 0x08010100 +#define MR_DCMD_CLUSTER_RESET_LD 0x08010200 + +/** + * MFI command completion codes + */ +enum MFI_STAT { + MFI_STAT_OK = 0x00, + MFI_STAT_INVALID_CMD = 0x01, + MFI_STAT_INVALID_DCMD = 0x02, + MFI_STAT_INVALID_PARAMETER = 0x03, + MFI_STAT_INVALID_SEQUENCE_NUMBER = 0x04, + MFI_STAT_ABORT_NOT_POSSIBLE = 0x05, + MFI_STAT_APP_HOST_CODE_NOT_FOUND = 0x06, + MFI_STAT_APP_IN_USE = 0x07, + MFI_STAT_APP_NOT_INITIALIZED = 0x08, + MFI_STAT_ARRAY_INDEX_INVALID = 0x09, + MFI_STAT_ARRAY_ROW_NOT_EMPTY = 0x0a, + MFI_STAT_CONFIG_RESOURCE_CONFLICT = 0x0b, + MFI_STAT_DEVICE_NOT_FOUND = 0x0c, + MFI_STAT_DRIVE_TOO_SMALL = 0x0d, + MFI_STAT_FLASH_ALLOC_FAIL = 0x0e, + MFI_STAT_FLASH_BUSY = 0x0f, + MFI_STAT_FLASH_ERROR = 0x10, + MFI_STAT_FLASH_IMAGE_BAD = 0x11, + MFI_STAT_FLASH_IMAGE_INCOMPLETE = 0x12, + MFI_STAT_FLASH_NOT_OPEN = 0x13, + MFI_STAT_FLASH_NOT_STARTED = 0x14, + MFI_STAT_FLUSH_FAILED = 0x15, + MFI_STAT_HOST_CODE_NOT_FOUNT = 0x16, + MFI_STAT_LD_CC_IN_PROGRESS = 0x17, + MFI_STAT_LD_INIT_IN_PROGRESS = 0x18, + MFI_STAT_LD_LBA_OUT_OF_RANGE = 0x19, + MFI_STAT_LD_MAX_CONFIGURED = 0x1a, + MFI_STAT_LD_NOT_OPTIMAL = 0x1b, + MFI_STAT_LD_RBLD_IN_PROGRESS = 0x1c, + MFI_STAT_LD_RECON_IN_PROGRESS = 0x1d, + MFI_STAT_LD_WRONG_RAID_LEVEL = 0x1e, + MFI_STAT_MAX_SPARES_EXCEEDED = 0x1f, + MFI_STAT_MEMORY_NOT_AVAILABLE = 0x20, + MFI_STAT_MFC_HW_ERROR = 0x21, + MFI_STAT_NO_HW_PRESENT = 0x22, + MFI_STAT_NOT_FOUND = 0x23, + MFI_STAT_NOT_IN_ENCL = 0x24, + MFI_STAT_PD_CLEAR_IN_PROGRESS = 0x25, + MFI_STAT_PD_TYPE_WRONG = 0x26, + MFI_STAT_PR_DISABLED = 0x27, + MFI_STAT_ROW_INDEX_INVALID = 0x28, + MFI_STAT_SAS_CONFIG_INVALID_ACTION = 0x29, + MFI_STAT_SAS_CONFIG_INVALID_DATA = 0x2a, + MFI_STAT_SAS_CONFIG_INVALID_PAGE = 0x2b, + MFI_STAT_SAS_CONFIG_INVALID_TYPE = 0x2c, + MFI_STAT_SCSI_DONE_WITH_ERROR = 0x2d, + MFI_STAT_SCSI_IO_FAILED = 0x2e, + MFI_STAT_SCSI_RESERVATION_CONFLICT = 0x2f, + MFI_STAT_SHUTDOWN_FAILED = 0x30, + MFI_STAT_TIME_NOT_SET = 0x31, + MFI_STAT_WRONG_STATE = 0x32, + MFI_STAT_LD_OFFLINE = 0x33, + MFI_STAT_PEER_NOTIFICATION_REJECTED = 0x34, + MFI_STAT_PEER_NOTIFICATION_FAILED = 0x35, + MFI_STAT_RESERVATION_IN_PROGRESS = 0x36, + MFI_STAT_I2C_ERRORS_DETECTED = 0x37, + MFI_STAT_PCI_ERRORS_DETECTED = 0x38, + + MFI_STAT_INVALID_STATUS = 0xFF +}; + +/* + * Number of mailbox bytes in DCMD message frame + */ +#define MFI_MBOX_SIZE 12 + +enum MR_EVT_CLASS { + + MR_EVT_CLASS_DEBUG = -2, + MR_EVT_CLASS_PROGRESS = -1, + MR_EVT_CLASS_INFO = 0, + MR_EVT_CLASS_WARNING = 1, + MR_EVT_CLASS_CRITICAL = 2, + MR_EVT_CLASS_FATAL = 3, + MR_EVT_CLASS_DEAD = 4, + +}; + +enum MR_EVT_LOCALE { + + MR_EVT_LOCALE_LD = 0x0001, + MR_EVT_LOCALE_PD = 0x0002, + MR_EVT_LOCALE_ENCL = 0x0004, + MR_EVT_LOCALE_BBU = 0x0008, + MR_EVT_LOCALE_SAS = 0x0010, + MR_EVT_LOCALE_CTRL = 0x0020, + MR_EVT_LOCALE_CONFIG = 0x0040, + MR_EVT_LOCALE_CLUSTER = 0x0080, + MR_EVT_LOCALE_ALL = 0xffff, + +}; + +enum MR_EVT_ARGS { + + MR_EVT_ARGS_NONE, + MR_EVT_ARGS_CDB_SENSE, + MR_EVT_ARGS_LD, + MR_EVT_ARGS_LD_COUNT, + MR_EVT_ARGS_LD_LBA, + MR_EVT_ARGS_LD_OWNER, + MR_EVT_ARGS_LD_LBA_PD_LBA, + MR_EVT_ARGS_LD_PROG, + MR_EVT_ARGS_LD_STATE, + MR_EVT_ARGS_LD_STRIP, + MR_EVT_ARGS_PD, + MR_EVT_ARGS_PD_ERR, + MR_EVT_ARGS_PD_LBA, + MR_EVT_ARGS_PD_LBA_LD, + MR_EVT_ARGS_PD_PROG, + MR_EVT_ARGS_PD_STATE, + MR_EVT_ARGS_PCI, + MR_EVT_ARGS_RATE, + MR_EVT_ARGS_STR, + MR_EVT_ARGS_TIME, + MR_EVT_ARGS_ECC, + +}; + +/* + * SAS controller properties + */ +struct megasas_ctrl_prop { + + u16 seq_num; + u16 pred_fail_poll_interval; + u16 intr_throttle_count; + u16 intr_throttle_timeouts; + u8 rebuild_rate; + u8 patrol_read_rate; + u8 bgi_rate; + u8 cc_rate; + u8 recon_rate; + u8 cache_flush_interval; + u8 spinup_drv_count; + u8 spinup_delay; + u8 cluster_enable; + u8 coercion_mode; + u8 alarm_enable; + u8 disable_auto_rebuild; + u8 disable_battery_warn; + u8 ecc_bucket_size; + u16 ecc_bucket_leak_rate; + u8 restore_hotspare_on_insertion; + u8 expose_encl_devices; + u8 reserved[38]; + +} __attribute__ ((packed)); + +/* + * SAS controller information + */ +struct megasas_ctrl_info { + + /* + * PCI device information + */ + struct { + + u16 vendor_id; + u16 device_id; + u16 sub_vendor_id; + u16 sub_device_id; + u8 reserved[24]; + + } __attribute__ ((packed)) pci; + + /* + * Host interface information + */ + struct { + + u8 PCIX:1; + u8 PCIE:1; + u8 iSCSI:1; + u8 SAS_3G:1; + u8 reserved_0:4; + u8 reserved_1[6]; + u8 port_count; + u64 port_addr[8]; + + } __attribute__ ((packed)) host_interface; + + /* + * Device (backend) interface information + */ + struct { + + u8 SPI:1; + u8 SAS_3G:1; + u8 SATA_1_5G:1; + u8 SATA_3G:1; + u8 reserved_0:4; + u8 reserved_1[6]; + u8 port_count; + u64 port_addr[8]; + + } __attribute__ ((packed)) device_interface; + + /* + * List of components residing in flash. All str are null terminated + */ + u32 image_check_word; + u32 image_component_count; + + struct { + + char name[8]; + char version[32]; + char build_date[16]; + char built_time[16]; + + } __attribute__ ((packed)) image_component[8]; + + /* + * List of flash components that have been flashed on the card, but + * are not in use, pending reset of the adapter. This list will be + * empty if a flash operation has not occurred. All stings are null + * terminated + */ + u32 pending_image_component_count; + + struct { + + char name[8]; + char version[32]; + char build_date[16]; + char build_time[16]; + + } __attribute__ ((packed)) pending_image_component[8]; + + u8 max_arms; + u8 max_spans; + u8 max_arrays; + u8 max_lds; + + char product_name[80]; + char serial_no[32]; + + /* + * Other physical/controller/operation information. Indicates the + * presence of the hardware + */ + struct { + + u32 bbu:1; + u32 alarm:1; + u32 nvram:1; + u32 uart:1; + u32 reserved:28; + + } __attribute__ ((packed)) hw_present; + + u32 current_fw_time; + + /* + * Maximum data transfer sizes + */ + u16 max_concurrent_cmds; + u16 max_sge_count; + u32 max_request_size; + + /* + * Logical and physical device counts + */ + u16 ld_present_count; + u16 ld_degraded_count; + u16 ld_offline_count; + + u16 pd_present_count; + u16 pd_disk_present_count; + u16 pd_disk_pred_failure_count; + u16 pd_disk_failed_count; + + /* + * Memory size information + */ + u16 nvram_size; + u16 memory_size; + u16 flash_size; + + /* + * Error counters + */ + u16 mem_correctable_error_count; + u16 mem_uncorrectable_error_count; + + /* + * Cluster information + */ + u8 cluster_permitted; + u8 cluster_active; + + /* + * Additional max data transfer sizes + */ + u16 max_strips_per_io; + + /* + * Controller capabilities structures + */ + struct { + + u32 raid_level_0:1; + u32 raid_level_1:1; + u32 raid_level_5:1; + u32 raid_level_1E:1; + u32 raid_level_6:1; + u32 reserved:27; + + } __attribute__ ((packed)) raid_levels; + + struct { + + u32 rbld_rate:1; + u32 cc_rate:1; + u32 bgi_rate:1; + u32 recon_rate:1; + u32 patrol_rate:1; + u32 alarm_control:1; + u32 cluster_supported:1; + u32 bbu:1; + u32 spanning_allowed:1; + u32 dedicated_hotspares:1; + u32 revertible_hotspares:1; + u32 foreign_config_import:1; + u32 self_diagnostic:1; + u32 mixed_redundancy_arr:1; + u32 global_hot_spares:1; + u32 reserved:17; + + } __attribute__ ((packed)) adapter_operations; + + struct { + + u32 read_policy:1; + u32 write_policy:1; + u32 io_policy:1; + u32 access_policy:1; + u32 disk_cache_policy:1; + u32 reserved:27; + + } __attribute__ ((packed)) ld_operations; + + struct { + + u8 min; + u8 max; + u8 reserved[2]; + + } __attribute__ ((packed)) stripe_sz_ops; + + struct { + + u32 force_online:1; + u32 force_offline:1; + u32 force_rebuild:1; + u32 reserved:29; + + } __attribute__ ((packed)) pd_operations; + + struct { + + u32 ctrl_supports_sas:1; + u32 ctrl_supports_sata:1; + u32 allow_mix_in_encl:1; + u32 allow_mix_in_ld:1; + u32 allow_sata_in_cluster:1; + u32 reserved:27; + + } __attribute__ ((packed)) pd_mix_support; + + /* + * Define ECC single-bit-error bucket information + */ + u8 ecc_bucket_count; + u8 reserved_2[11]; + + /* + * Include the controller properties (changeable items) + */ + struct megasas_ctrl_prop properties; + + /* + * Define FW pkg version (set in envt v'bles on OEM basis) + */ + char package_version[0x60]; + + u8 pad[0x800 - 0x6a0]; + +} __attribute__ ((packed)); + +/* + * =============================== + * MegaRAID SAS driver definitions + * =============================== + */ +#define MEGASAS_MAX_PD_CHANNELS 2 +#define MEGASAS_MAX_LD_CHANNELS 2 +#define MEGASAS_MAX_CHANNELS (MEGASAS_MAX_PD_CHANNELS + \ + MEGASAS_MAX_LD_CHANNELS) +#define MEGASAS_MAX_DEV_PER_CHANNEL 128 +#define MEGASAS_DEFAULT_INIT_ID -1 +#define MEGASAS_MAX_LUN 8 +#define MEGASAS_MAX_LD 64 + +/* + * When SCSI mid-layer calls driver's reset routine, driver waits for + * MEGASAS_RESET_WAIT_TIME seconds for all outstanding IO to complete. Note + * that the driver cannot _actually_ abort or reset pending commands. While + * it is waiting for the commands to complete, it prints a diagnostic message + * every MEGASAS_RESET_NOTICE_INTERVAL seconds + */ +#define MEGASAS_RESET_WAIT_TIME 180 +#define MEGASAS_RESET_NOTICE_INTERVAL 5 + +#define MEGASAS_IOCTL_CMD 0 + +/* + * FW reports the maximum of number of commands that it can accept (maximum + * commands that can be outstanding) at any time. The driver must report a + * lower number to the mid layer because it can issue a few internal commands + * itself (E.g, AEN, abort cmd, IOCTLs etc). The number of commands it needs + * is shown below + */ +#define MEGASAS_INT_CMDS 32 + +/* + * FW can accept both 32 and 64 bit SGLs. We want to allocate 32/64 bit + * SGLs based on the size of dma_addr_t + */ +#define IS_DMA64 (sizeof(dma_addr_t) == 8) + +#define MFI_OB_INTR_STATUS_MASK 0x00000002 +#define MFI_POLL_TIMEOUT_SECS 10 + +struct megasas_register_set { + + u32 reserved_0[4]; /*0000h */ + + u32 inbound_msg_0; /*0010h */ + u32 inbound_msg_1; /*0014h */ + u32 outbound_msg_0; /*0018h */ + u32 outbound_msg_1; /*001Ch */ + + u32 inbound_doorbell; /*0020h */ + u32 inbound_intr_status; /*0024h */ + u32 inbound_intr_mask; /*0028h */ + + u32 outbound_doorbell; /*002Ch */ + u32 outbound_intr_status; /*0030h */ + u32 outbound_intr_mask; /*0034h */ + + u32 reserved_1[2]; /*0038h */ + + u32 inbound_queue_port; /*0040h */ + u32 outbound_queue_port; /*0044h */ + + u32 reserved_2; /*004Ch */ + + u32 index_registers[1004]; /*0050h */ + +} __attribute__ ((packed)); + +struct megasas_sge32 { + + u32 phys_addr; + u32 length; + +} __attribute__ ((packed)); + +struct megasas_sge64 { + + u64 phys_addr; + u32 length; + +} __attribute__ ((packed)); + +union megasas_sgl { + + struct megasas_sge32 sge32[1]; + struct megasas_sge64 sge64[1]; + +} __attribute__ ((packed)); + +struct megasas_header { + + u8 cmd; /*00h */ + u8 sense_len; /*01h */ + u8 cmd_status; /*02h */ + u8 scsi_status; /*03h */ + + u8 target_id; /*04h */ + u8 lun; /*05h */ + u8 cdb_len; /*06h */ + u8 sge_count; /*07h */ + + u32 context; /*08h */ + u32 pad_0; /*0Ch */ + + u16 flags; /*10h */ + u16 timeout; /*12h */ + u32 data_xferlen; /*14h */ + +} __attribute__ ((packed)); + +union megasas_sgl_frame { + + struct megasas_sge32 sge32[8]; + struct megasas_sge64 sge64[5]; + +} __attribute__ ((packed)); + +struct megasas_init_frame { + + u8 cmd; /*00h */ + u8 reserved_0; /*01h */ + u8 cmd_status; /*02h */ + + u8 reserved_1; /*03h */ + u32 reserved_2; /*04h */ + + u32 context; /*08h */ + u32 pad_0; /*0Ch */ + + u16 flags; /*10h */ + u16 reserved_3; /*12h */ + u32 data_xfer_len; /*14h */ + + u32 queue_info_new_phys_addr_lo; /*18h */ + u32 queue_info_new_phys_addr_hi; /*1Ch */ + u32 queue_info_old_phys_addr_lo; /*20h */ + u32 queue_info_old_phys_addr_hi; /*24h */ + + u32 reserved_4[6]; /*28h */ + +} __attribute__ ((packed)); + +struct megasas_init_queue_info { + + u32 init_flags; /*00h */ + u32 reply_queue_entries; /*04h */ + + u32 reply_queue_start_phys_addr_lo; /*08h */ + u32 reply_queue_start_phys_addr_hi; /*0Ch */ + u32 producer_index_phys_addr_lo; /*10h */ + u32 producer_index_phys_addr_hi; /*14h */ + u32 consumer_index_phys_addr_lo; /*18h */ + u32 consumer_index_phys_addr_hi; /*1Ch */ + +} __attribute__ ((packed)); + +struct megasas_io_frame { + + u8 cmd; /*00h */ + u8 sense_len; /*01h */ + u8 cmd_status; /*02h */ + u8 scsi_status; /*03h */ + + u8 target_id; /*04h */ + u8 access_byte; /*05h */ + u8 reserved_0; /*06h */ + u8 sge_count; /*07h */ + + u32 context; /*08h */ + u32 pad_0; /*0Ch */ + + u16 flags; /*10h */ + u16 timeout; /*12h */ + u32 lba_count; /*14h */ + + u32 sense_buf_phys_addr_lo; /*18h */ + u32 sense_buf_phys_addr_hi; /*1Ch */ + + u32 start_lba_lo; /*20h */ + u32 start_lba_hi; /*24h */ + + union megasas_sgl sgl; /*28h */ + +} __attribute__ ((packed)); + +struct megasas_pthru_frame { + + u8 cmd; /*00h */ + u8 sense_len; /*01h */ + u8 cmd_status; /*02h */ + u8 scsi_status; /*03h */ + + u8 target_id; /*04h */ + u8 lun; /*05h */ + u8 cdb_len; /*06h */ + u8 sge_count; /*07h */ + + u32 context; /*08h */ + u32 pad_0; /*0Ch */ + + u16 flags; /*10h */ + u16 timeout; /*12h */ + u32 data_xfer_len; /*14h */ + + u32 sense_buf_phys_addr_lo; /*18h */ + u32 sense_buf_phys_addr_hi; /*1Ch */ + + u8 cdb[16]; /*20h */ + union megasas_sgl sgl; /*30h */ + +} __attribute__ ((packed)); + +struct megasas_dcmd_frame { + + u8 cmd; /*00h */ + u8 reserved_0; /*01h */ + u8 cmd_status; /*02h */ + u8 reserved_1[4]; /*03h */ + u8 sge_count; /*07h */ + + u32 context; /*08h */ + u32 pad_0; /*0Ch */ + + u16 flags; /*10h */ + u16 timeout; /*12h */ + + u32 data_xfer_len; /*14h */ + u32 opcode; /*18h */ + + union { /*1Ch */ + u8 b[12]; + u16 s[6]; + u32 w[3]; + } mbox; + + union megasas_sgl sgl; /*28h */ + +} __attribute__ ((packed)); + +struct megasas_abort_frame { + + u8 cmd; /*00h */ + u8 reserved_0; /*01h */ + u8 cmd_status; /*02h */ + + u8 reserved_1; /*03h */ + u32 reserved_2; /*04h */ + + u32 context; /*08h */ + u32 pad_0; /*0Ch */ + + u16 flags; /*10h */ + u16 reserved_3; /*12h */ + u32 reserved_4; /*14h */ + + u32 abort_context; /*18h */ + u32 pad_1; /*1Ch */ + + u32 abort_mfi_phys_addr_lo; /*20h */ + u32 abort_mfi_phys_addr_hi; /*24h */ + + u32 reserved_5[6]; /*28h */ + +} __attribute__ ((packed)); + +struct megasas_smp_frame { + + u8 cmd; /*00h */ + u8 reserved_1; /*01h */ + u8 cmd_status; /*02h */ + u8 connection_status; /*03h */ + + u8 reserved_2[3]; /*04h */ + u8 sge_count; /*07h */ + + u32 context; /*08h */ + u32 pad_0; /*0Ch */ + + u16 flags; /*10h */ + u16 timeout; /*12h */ + + u32 data_xfer_len; /*14h */ + u64 sas_addr; /*18h */ + + union { + struct megasas_sge32 sge32[2]; /* [0]: resp [1]: req */ + struct megasas_sge64 sge64[2]; /* [0]: resp [1]: req */ + } sgl; + +} __attribute__ ((packed)); + +struct megasas_stp_frame { + + u8 cmd; /*00h */ + u8 reserved_1; /*01h */ + u8 cmd_status; /*02h */ + u8 reserved_2; /*03h */ + + u8 target_id; /*04h */ + u8 reserved_3[2]; /*05h */ + u8 sge_count; /*07h */ + + u32 context; /*08h */ + u32 pad_0; /*0Ch */ + + u16 flags; /*10h */ + u16 timeout; /*12h */ + + u32 data_xfer_len; /*14h */ + + u16 fis[10]; /*18h */ + u32 stp_flags; + + union { + struct megasas_sge32 sge32[2]; /* [0]: resp [1]: data */ + struct megasas_sge64 sge64[2]; /* [0]: resp [1]: data */ + } sgl; + +} __attribute__ ((packed)); + +union megasas_frame { + + struct megasas_header hdr; + struct megasas_init_frame init; + struct megasas_io_frame io; + struct megasas_pthru_frame pthru; + struct megasas_dcmd_frame dcmd; + struct megasas_abort_frame abort; + struct megasas_smp_frame smp; + struct megasas_stp_frame stp; + + u8 raw_bytes[64]; +}; + +struct megasas_cmd; + +union megasas_evt_class_locale { + + struct { + u16 locale; + u8 reserved; + s8 class; + } __attribute__ ((packed)) members; + + u32 word; + +} __attribute__ ((packed)); + +struct megasas_evt_log_info { + u32 newest_seq_num; + u32 oldest_seq_num; + u32 clear_seq_num; + u32 shutdown_seq_num; + u32 boot_seq_num; + +} __attribute__ ((packed)); + +struct megasas_progress { + + u16 progress; + u16 elapsed_seconds; + +} __attribute__ ((packed)); + +struct megasas_evtarg_ld { + + u16 target_id; + u8 ld_index; + u8 reserved; + +} __attribute__ ((packed)); + +struct megasas_evtarg_pd { + u16 device_id; + u8 encl_index; + u8 slot_number; + +} __attribute__ ((packed)); + +struct megasas_evt_detail { + + u32 seq_num; + u32 time_stamp; + u32 code; + union megasas_evt_class_locale cl; + u8 arg_type; + u8 reserved1[15]; + + union { + struct { + struct megasas_evtarg_pd pd; + u8 cdb_length; + u8 sense_length; + u8 reserved[2]; + u8 cdb[16]; + u8 sense[64]; + } __attribute__ ((packed)) cdbSense; + + struct megasas_evtarg_ld ld; + + struct { + struct megasas_evtarg_ld ld; + u64 count; + } __attribute__ ((packed)) ld_count; + + struct { + u64 lba; + struct megasas_evtarg_ld ld; + } __attribute__ ((packed)) ld_lba; + + struct { + struct megasas_evtarg_ld ld; + u32 prevOwner; + u32 newOwner; + } __attribute__ ((packed)) ld_owner; + + struct { + u64 ld_lba; + u64 pd_lba; + struct megasas_evtarg_ld ld; + struct megasas_evtarg_pd pd; + } __attribute__ ((packed)) ld_lba_pd_lba; + + struct { + struct megasas_evtarg_ld ld; + struct megasas_progress prog; + } __attribute__ ((packed)) ld_prog; + + struct { + struct megasas_evtarg_ld ld; + u32 prev_state; + u32 new_state; + } __attribute__ ((packed)) ld_state; + + struct { + u64 strip; + struct megasas_evtarg_ld ld; + } __attribute__ ((packed)) ld_strip; + + struct megasas_evtarg_pd pd; + + struct { + struct megasas_evtarg_pd pd; + u32 err; + } __attribute__ ((packed)) pd_err; + + struct { + u64 lba; + struct megasas_evtarg_pd pd; + } __attribute__ ((packed)) pd_lba; + + struct { + u64 lba; + struct megasas_evtarg_pd pd; + struct megasas_evtarg_ld ld; + } __attribute__ ((packed)) pd_lba_ld; + + struct { + struct megasas_evtarg_pd pd; + struct megasas_progress prog; + } __attribute__ ((packed)) pd_prog; + + struct { + struct megasas_evtarg_pd pd; + u32 prevState; + u32 newState; + } __attribute__ ((packed)) pd_state; + + struct { + u16 vendorId; + u16 deviceId; + u16 subVendorId; + u16 subDeviceId; + } __attribute__ ((packed)) pci; + + u32 rate; + char str[96]; + + struct { + u32 rtc; + u32 elapsedSeconds; + } __attribute__ ((packed)) time; + + struct { + u32 ecar; + u32 elog; + char str[64]; + } __attribute__ ((packed)) ecc; + + u8 b[96]; + u16 s[48]; + u32 w[24]; + u64 d[12]; + } args; + + char description[128]; + +} __attribute__ ((packed)); + +struct megasas_instance { + + u32 *producer; + dma_addr_t producer_h; + u32 *consumer; + dma_addr_t consumer_h; + + u32 *reply_queue; + dma_addr_t reply_queue_h; + + unsigned long base_addr; + struct megasas_register_set __iomem *reg_set; + + s8 init_id; + u8 reserved[3]; + + u16 max_num_sge; + u16 max_fw_cmds; + u32 max_sectors_per_req; + + struct megasas_cmd **cmd_list; + struct list_head cmd_pool; + spinlock_t cmd_pool_lock; + struct dma_pool *frame_dma_pool; + struct dma_pool *sense_dma_pool; + + struct megasas_evt_detail *evt_detail; + dma_addr_t evt_detail_h; + struct megasas_cmd *aen_cmd; + struct semaphore aen_mutex; + struct semaphore ioctl_sem; + + struct Scsi_Host *host; + + wait_queue_head_t int_cmd_wait_q; + wait_queue_head_t abort_cmd_wait_q; + + struct pci_dev *pdev; + u32 unique_id; + + u32 fw_outstanding; + u32 hw_crit_error; + spinlock_t instance_lock; +}; + +#define MEGASAS_IS_LOGICAL(scp) \ + (scp->device->channel < MEGASAS_MAX_PD_CHANNELS) ? 0 : 1 + +#define MEGASAS_DEV_INDEX(inst, scp) \ + ((scp->device->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL) + \ + scp->device->id + +struct megasas_cmd { + + union megasas_frame *frame; + dma_addr_t frame_phys_addr; + u8 *sense; + dma_addr_t sense_phys_addr; + + u32 index; + u8 sync_cmd; + u8 cmd_status; + u16 abort_aen; + + struct list_head list; + struct scsi_cmnd *scmd; + struct megasas_instance *instance; + u32 frame_count; +}; + +#define MAX_MGMT_ADAPTERS 1024 +#define MAX_IOCTL_SGE 16 + +struct megasas_iocpacket { + + u16 host_no; + u16 __pad1; + u32 sgl_off; + u32 sge_count; + u32 sense_off; + u32 sense_len; + union { + u8 raw[128]; + struct megasas_header hdr; + } frame; + + struct iovec sgl[MAX_IOCTL_SGE]; + +} __attribute__ ((packed)); + +struct megasas_aen { + u16 host_no; + u16 __pad1; + u32 seq_num; + u32 class_locale_word; +} __attribute__ ((packed)); + +#ifdef CONFIG_COMPAT +struct compat_megasas_iocpacket { + u16 host_no; + u16 __pad1; + u32 sgl_off; + u32 sge_count; + u32 sense_off; + u32 sense_len; + union { + u8 raw[128]; + struct megasas_header hdr; + } frame; + struct compat_iovec sgl[MAX_IOCTL_SGE]; +} __attribute__ ((packed)); + +#define MEGASAS_IOC_FIRMWARE _IOWR('M', 1, struct compat_megasas_iocpacket) +#else +#define MEGASAS_IOC_FIRMWARE _IOWR('M', 1, struct megasas_iocpacket) +#endif + +#define MEGASAS_IOC_GET_AEN _IOW('M', 3, struct megasas_aen) + +struct megasas_mgmt_info { + + u16 count; + struct megasas_instance *instance[MAX_MGMT_ADAPTERS]; + int max_index; +}; + +#endif /*LSI_MEGARAID_SAS_H */ diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index c49d28eca561..20fb79810c3c 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -185,6 +185,7 @@ #define PCI_DEVICE_ID_LSI_61C102 0x0901 #define PCI_DEVICE_ID_LSI_63C815 0x1000 #define PCI_DEVICE_ID_LSI_SAS1064 0x0050 +#define PCI_DEVICE_ID_LSI_SAS1064R 0x0411 #define PCI_DEVICE_ID_LSI_SAS1066 0x005E #define PCI_DEVICE_ID_LSI_SAS1068 0x0054 #define PCI_DEVICE_ID_LSI_SAS1064A 0x005C @@ -559,6 +560,7 @@ #define PCI_VENDOR_ID_DELL 0x1028 #define PCI_DEVICE_ID_DELL_RACIII 0x0008 #define PCI_DEVICE_ID_DELL_RAC4 0x0012 +#define PCI_DEVICE_ID_DELL_PERC5 0x0015 #define PCI_VENDOR_ID_MATROX 0x102B #define PCI_DEVICE_ID_MATROX_MGA_2 0x0518 From 7a8cf29d69e077dfe90e327859201fd9b75a47ce Mon Sep 17 00:00:00 2001 From: Mark Haverkamp Date: Thu, 22 Sep 2005 09:15:24 -0700 Subject: [PATCH 155/352] [SCSI] aacraid: Greater than 2TB capacity support Received from Mark Salyzyn from Adaptec. There are a few adapters that are capable of creating devices with this large of a capacity, but now that we have the large fib support in, the management applications will be capable of generating them. The problem is, once they are created, the driver will not be able to access the devices correctly without this patch. Signed-off-by: Mark Haverkamp Signed-off-by: James Bottomley --- drivers/scsi/aacraid/aachba.c | 269 ++++++++++++++++++++++++++++---- drivers/scsi/aacraid/aacraid.h | 10 +- drivers/scsi/aacraid/comminit.c | 7 + drivers/scsi/aacraid/linit.c | 1 + 4 files changed, 254 insertions(+), 33 deletions(-) diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c index a8e3dfcd0dc7..0a209b2cd695 100644 --- a/drivers/scsi/aacraid/aachba.c +++ b/drivers/scsi/aacraid/aachba.c @@ -313,18 +313,37 @@ int aac_get_containers(struct aac_dev *dev) } dresp = (struct aac_mount *)fib_data(fibptr); + if ((le32_to_cpu(dresp->status) == ST_OK) && + (le32_to_cpu(dresp->mnt[0].vol) == CT_NONE)) { + dinfo->command = cpu_to_le32(VM_NameServe64); + dinfo->count = cpu_to_le32(index); + dinfo->type = cpu_to_le32(FT_FILESYS); + + if (fib_send(ContainerCommand, + fibptr, + sizeof(struct aac_query_mount), + FsaNormal, + 1, 1, + NULL, NULL) < 0) + continue; + } else + dresp->mnt[0].capacityhigh = 0; + dprintk ((KERN_DEBUG - "VM_NameServe cid=%d status=%d vol=%d state=%d cap=%u\n", + "VM_NameServe cid=%d status=%d vol=%d state=%d cap=%llu\n", (int)index, (int)le32_to_cpu(dresp->status), (int)le32_to_cpu(dresp->mnt[0].vol), (int)le32_to_cpu(dresp->mnt[0].state), - (unsigned)le32_to_cpu(dresp->mnt[0].capacity))); + ((u64)le32_to_cpu(dresp->mnt[0].capacity)) + + (((u64)le32_to_cpu(dresp->mnt[0].capacityhigh)) << 32))); if ((le32_to_cpu(dresp->status) == ST_OK) && (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) && (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) { fsa_dev_ptr[index].valid = 1; fsa_dev_ptr[index].type = le32_to_cpu(dresp->mnt[0].vol); - fsa_dev_ptr[index].size = le32_to_cpu(dresp->mnt[0].capacity); + fsa_dev_ptr[index].size + = ((u64)le32_to_cpu(dresp->mnt[0].capacity)) + + (((u64)le32_to_cpu(dresp->mnt[0].capacityhigh)) << 32); if (le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY) fsa_dev_ptr[index].ro = 1; } @@ -496,12 +515,30 @@ static int probe_container(struct aac_dev *dev, int cid) dresp = (struct aac_mount *) fib_data(fibptr); + if ((le32_to_cpu(dresp->status) == ST_OK) && + (le32_to_cpu(dresp->mnt[0].vol) == CT_NONE)) { + dinfo->command = cpu_to_le32(VM_NameServe64); + dinfo->count = cpu_to_le32(cid); + dinfo->type = cpu_to_le32(FT_FILESYS); + + if (fib_send(ContainerCommand, + fibptr, + sizeof(struct aac_query_mount), + FsaNormal, + 1, 1, + NULL, NULL) < 0) + goto error; + } else + dresp->mnt[0].capacityhigh = 0; + if ((le32_to_cpu(dresp->status) == ST_OK) && (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) && (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) { fsa_dev_ptr[cid].valid = 1; fsa_dev_ptr[cid].type = le32_to_cpu(dresp->mnt[0].vol); - fsa_dev_ptr[cid].size = le32_to_cpu(dresp->mnt[0].capacity); + fsa_dev_ptr[cid].size + = ((u64)le32_to_cpu(dresp->mnt[0].capacity)) + + (((u64)le32_to_cpu(dresp->mnt[0].capacityhigh)) << 32); if (le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY) fsa_dev_ptr[cid].ro = 1; } @@ -854,7 +891,40 @@ static void io_callback(void *context, struct fib * fibptr) dev = (struct aac_dev *)scsicmd->device->host->hostdata; cid = ID_LUN_TO_CONTAINER(scsicmd->device->id, scsicmd->device->lun); - dprintk((KERN_DEBUG "io_callback[cpu %d]: lba = %u, t = %ld.\n", smp_processor_id(), ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3], jiffies)); + if (nblank(dprintk(x))) { + u64 lba; + switch (scsicmd->cmnd[0]) { + case WRITE_6: + case READ_6: + lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | + (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3]; + break; + case WRITE_16: + case READ_16: + lba = ((u64)scsicmd->cmnd[2] << 56) | + ((u64)scsicmd->cmnd[3] << 48) | + ((u64)scsicmd->cmnd[4] << 40) | + ((u64)scsicmd->cmnd[5] << 32) | + ((u64)scsicmd->cmnd[6] << 24) | + (scsicmd->cmnd[7] << 16) | + (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9]; + break; + case WRITE_12: + case READ_12: + lba = ((u64)scsicmd->cmnd[2] << 24) | + (scsicmd->cmnd[3] << 16) | + (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5]; + break; + default: + lba = ((u64)scsicmd->cmnd[2] << 24) | + (scsicmd->cmnd[3] << 16) | + (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5]; + break; + } + printk(KERN_DEBUG + "io_callback[cpu %d]: lba = %llu, t = %ld.\n", + smp_processor_id(), (unsigned long long)lba, jiffies); + } if (fibptr == NULL) BUG(); @@ -895,7 +965,7 @@ static void io_callback(void *context, struct fib * fibptr) static int aac_read(struct scsi_cmnd * scsicmd, int cid) { - u32 lba; + u64 lba; u32 count; int status; @@ -907,23 +977,69 @@ static int aac_read(struct scsi_cmnd * scsicmd, int cid) /* * Get block address and transfer length */ - if (scsicmd->cmnd[0] == READ_6) /* 6 byte command */ - { + switch (scsicmd->cmnd[0]) { + case READ_6: dprintk((KERN_DEBUG "aachba: received a read(6) command on id %d.\n", cid)); - lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3]; + lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | + (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3]; count = scsicmd->cmnd[4]; if (count == 0) count = 256; - } else { + break; + case READ_16: + dprintk((KERN_DEBUG "aachba: received a read(16) command on id %d.\n", cid)); + + lba = ((u64)scsicmd->cmnd[2] << 56) | + ((u64)scsicmd->cmnd[3] << 48) | + ((u64)scsicmd->cmnd[4] << 40) | + ((u64)scsicmd->cmnd[5] << 32) | + ((u64)scsicmd->cmnd[6] << 24) | + (scsicmd->cmnd[7] << 16) | + (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9]; + count = (scsicmd->cmnd[10] << 24) | + (scsicmd->cmnd[11] << 16) | + (scsicmd->cmnd[12] << 8) | scsicmd->cmnd[13]; + break; + case READ_12: + dprintk((KERN_DEBUG "aachba: received a read(12) command on id %d.\n", cid)); + + lba = ((u64)scsicmd->cmnd[2] << 24) | + (scsicmd->cmnd[3] << 16) | + (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5]; + count = (scsicmd->cmnd[6] << 24) | + (scsicmd->cmnd[7] << 16) | + (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9]; + break; + default: dprintk((KERN_DEBUG "aachba: received a read(10) command on id %d.\n", cid)); - lba = (scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5]; + lba = ((u64)scsicmd->cmnd[2] << 24) | + (scsicmd->cmnd[3] << 16) | + (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5]; count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8]; + break; } - dprintk((KERN_DEBUG "aac_read[cpu %d]: lba = %u, t = %ld.\n", + dprintk((KERN_DEBUG "aac_read[cpu %d]: lba = %llu, t = %ld.\n", smp_processor_id(), (unsigned long long)lba, jiffies)); + if ((!(dev->raw_io_interface) || !(dev->raw_io_64)) && + (lba & 0xffffffff00000000LL)) { + dprintk((KERN_DEBUG "aac_read: Illegal lba\n")); + scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | + SAM_STAT_CHECK_CONDITION; + set_sense((u8 *) &dev->fsa_dev[cid].sense_data, + HARDWARE_ERROR, + SENCODE_INTERNAL_TARGET_FAILURE, + ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0, + 0, 0); + memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data, + (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer)) + ? sizeof(scsicmd->sense_buffer) + : sizeof(dev->fsa_dev[cid].sense_data)); + scsicmd->scsi_done(scsicmd); + return 0; + } /* * Alocate and initialize a Fib */ @@ -936,8 +1052,8 @@ static int aac_read(struct scsi_cmnd * scsicmd, int cid) if (dev->raw_io_interface) { struct aac_raw_io *readcmd; readcmd = (struct aac_raw_io *) fib_data(cmd_fibcontext); - readcmd->block[0] = cpu_to_le32(lba); - readcmd->block[1] = 0; + readcmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff)); + readcmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32)); readcmd->count = cpu_to_le32(count<<9); readcmd->cid = cpu_to_le16(cid); readcmd->flags = cpu_to_le16(1); @@ -964,7 +1080,7 @@ static int aac_read(struct scsi_cmnd * scsicmd, int cid) readcmd->command = cpu_to_le32(VM_CtHostRead64); readcmd->cid = cpu_to_le16(cid); readcmd->sector_count = cpu_to_le16(count); - readcmd->block = cpu_to_le32(lba); + readcmd->block = cpu_to_le32((u32)(lba&0xffffffff)); readcmd->pad = 0; readcmd->flags = 0; @@ -989,7 +1105,7 @@ static int aac_read(struct scsi_cmnd * scsicmd, int cid) readcmd = (struct aac_read *) fib_data(cmd_fibcontext); readcmd->command = cpu_to_le32(VM_CtBlockRead); readcmd->cid = cpu_to_le32(cid); - readcmd->block = cpu_to_le32(lba); + readcmd->block = cpu_to_le32((u32)(lba&0xffffffff)); readcmd->count = cpu_to_le32(count * 512); aac_build_sg(scsicmd, &readcmd->sg); @@ -1031,7 +1147,7 @@ static int aac_read(struct scsi_cmnd * scsicmd, int cid) static int aac_write(struct scsi_cmnd * scsicmd, int cid) { - u32 lba; + u64 lba; u32 count; int status; u16 fibsize; @@ -1048,13 +1164,48 @@ static int aac_write(struct scsi_cmnd * scsicmd, int cid) count = scsicmd->cmnd[4]; if (count == 0) count = 256; + } else if (scsicmd->cmnd[0] == WRITE_16) { /* 16 byte command */ + dprintk((KERN_DEBUG "aachba: received a write(16) command on id %d.\n", cid)); + + lba = ((u64)scsicmd->cmnd[2] << 56) | + ((u64)scsicmd->cmnd[3] << 48) | + ((u64)scsicmd->cmnd[4] << 40) | + ((u64)scsicmd->cmnd[5] << 32) | + ((u64)scsicmd->cmnd[6] << 24) | + (scsicmd->cmnd[7] << 16) | + (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9]; + count = (scsicmd->cmnd[10] << 24) | (scsicmd->cmnd[11] << 16) | + (scsicmd->cmnd[12] << 8) | scsicmd->cmnd[13]; + } else if (scsicmd->cmnd[0] == WRITE_12) { /* 12 byte command */ + dprintk((KERN_DEBUG "aachba: received a write(12) command on id %d.\n", cid)); + + lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) + | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5]; + count = (scsicmd->cmnd[6] << 24) | (scsicmd->cmnd[7] << 16) + | (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9]; } else { dprintk((KERN_DEBUG "aachba: received a write(10) command on id %d.\n", cid)); - lba = (scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5]; + lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5]; count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8]; } - dprintk((KERN_DEBUG "aac_write[cpu %d]: lba = %u, t = %ld.\n", + dprintk((KERN_DEBUG "aac_write[cpu %d]: lba = %llu, t = %ld.\n", smp_processor_id(), (unsigned long long)lba, jiffies)); + if ((!(dev->raw_io_interface) || !(dev->raw_io_64)) + && (lba & 0xffffffff00000000LL)) { + dprintk((KERN_DEBUG "aac_write: Illegal lba\n")); + scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION; + set_sense((u8 *) &dev->fsa_dev[cid].sense_data, + HARDWARE_ERROR, + SENCODE_INTERNAL_TARGET_FAILURE, + ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0, + 0, 0); + memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data, + (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer)) + ? sizeof(scsicmd->sense_buffer) + : sizeof(dev->fsa_dev[cid].sense_data)); + scsicmd->scsi_done(scsicmd); + return 0; + } /* * Allocate and initialize a Fib then setup a BlockWrite command */ @@ -1068,8 +1219,8 @@ static int aac_write(struct scsi_cmnd * scsicmd, int cid) if (dev->raw_io_interface) { struct aac_raw_io *writecmd; writecmd = (struct aac_raw_io *) fib_data(cmd_fibcontext); - writecmd->block[0] = cpu_to_le32(lba); - writecmd->block[1] = 0; + writecmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff)); + writecmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32)); writecmd->count = cpu_to_le32(count<<9); writecmd->cid = cpu_to_le16(cid); writecmd->flags = 0; @@ -1096,7 +1247,7 @@ static int aac_write(struct scsi_cmnd * scsicmd, int cid) writecmd->command = cpu_to_le32(VM_CtHostWrite64); writecmd->cid = cpu_to_le16(cid); writecmd->sector_count = cpu_to_le16(count); - writecmd->block = cpu_to_le32(lba); + writecmd->block = cpu_to_le32((u32)(lba&0xffffffff)); writecmd->pad = 0; writecmd->flags = 0; @@ -1121,7 +1272,7 @@ static int aac_write(struct scsi_cmnd * scsicmd, int cid) writecmd = (struct aac_write *) fib_data(cmd_fibcontext); writecmd->command = cpu_to_le32(VM_CtBlockWrite); writecmd->cid = cpu_to_le32(cid); - writecmd->block = cpu_to_le32(lba); + writecmd->block = cpu_to_le32((u32)(lba&0xffffffff)); writecmd->count = cpu_to_le32(count * 512); writecmd->sg.count = cpu_to_le32(1); /* ->stable is not used - it did mean which type of write */ @@ -1310,6 +1461,11 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd) */ if ((fsa_dev_ptr[cid].valid & 1) == 0) { switch (scsicmd->cmnd[0]) { + case SERVICE_ACTION_IN: + if (!(dev->raw_io_interface) || + !(dev->raw_io_64) || + ((scsicmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16)) + break; case INQUIRY: case READ_CAPACITY: case TEST_UNIT_READY: @@ -1375,7 +1531,6 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd) memset(&inq_data, 0, sizeof (struct inquiry_data)); inq_data.inqd_ver = 2; /* claim compliance to SCSI-2 */ - inq_data.inqd_dtq = 0x80; /* set RMB bit to one indicating that the medium is removable */ inq_data.inqd_rdf = 2; /* A response data format value of two indicates that the data shall be in the format specified in SCSI-2 */ inq_data.inqd_len = 31; /*Format for "pad2" is RelAdr | WBus32 | WBus16 | Sync | Linked |Reserved| CmdQue | SftRe */ @@ -1397,13 +1552,55 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd) aac_internal_transfer(scsicmd, &inq_data, 0, sizeof(inq_data)); return aac_get_container_name(scsicmd, cid); } + case SERVICE_ACTION_IN: + if (!(dev->raw_io_interface) || + !(dev->raw_io_64) || + ((scsicmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16)) + break; + { + u64 capacity; + char cp[12]; + unsigned int offset = 0; + + dprintk((KERN_DEBUG "READ CAPACITY_16 command.\n")); + capacity = fsa_dev_ptr[cid].size - 1; + if (scsicmd->cmnd[13] > 12) { + offset = scsicmd->cmnd[13] - 12; + if (offset > sizeof(cp)) + break; + memset(cp, 0, offset); + aac_internal_transfer(scsicmd, cp, 0, offset); + } + cp[0] = (capacity >> 56) & 0xff; + cp[1] = (capacity >> 48) & 0xff; + cp[2] = (capacity >> 40) & 0xff; + cp[3] = (capacity >> 32) & 0xff; + cp[4] = (capacity >> 24) & 0xff; + cp[5] = (capacity >> 16) & 0xff; + cp[6] = (capacity >> 8) & 0xff; + cp[7] = (capacity >> 0) & 0xff; + cp[8] = 0; + cp[9] = 0; + cp[10] = 2; + cp[11] = 0; + aac_internal_transfer(scsicmd, cp, offset, sizeof(cp)); + + /* Do not cache partition table for arrays */ + scsicmd->device->removable = 1; + + scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD; + scsicmd->scsi_done(scsicmd); + + return 0; + } + case READ_CAPACITY: { u32 capacity; char cp[8]; dprintk((KERN_DEBUG "READ CAPACITY command.\n")); - if (fsa_dev_ptr[cid].size <= 0x100000000LL) + if (fsa_dev_ptr[cid].size <= 0x100000000ULL) capacity = fsa_dev_ptr[cid].size - 1; else capacity = (u32)-1; @@ -1417,6 +1614,8 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd) cp[6] = 2; cp[7] = 0; aac_internal_transfer(scsicmd, cp, 0, sizeof(cp)); + /* Do not cache partition table for arrays */ + scsicmd->device->removable = 1; scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD; scsicmd->scsi_done(scsicmd); @@ -1497,6 +1696,8 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd) { case READ_6: case READ_10: + case READ_12: + case READ_16: /* * Hack to keep track of ordinal number of the device that * corresponds to a container. Needed to convert @@ -1504,17 +1705,19 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd) */ spin_unlock_irq(host->host_lock); - if (scsicmd->request->rq_disk) - memcpy(fsa_dev_ptr[cid].devname, - scsicmd->request->rq_disk->disk_name, - 8); - + if (scsicmd->request->rq_disk) + strlcpy(fsa_dev_ptr[cid].devname, + scsicmd->request->rq_disk->disk_name, + min(sizeof(fsa_dev_ptr[cid].devname), + sizeof(scsicmd->request->rq_disk->disk_name) + 1)); ret = aac_read(scsicmd, cid); spin_lock_irq(host->host_lock); return ret; case WRITE_6: case WRITE_10: + case WRITE_12: + case WRITE_16: spin_unlock_irq(host->host_lock); ret = aac_write(scsicmd, cid); spin_lock_irq(host->host_lock); @@ -1745,6 +1948,8 @@ static void aac_srb_callback(void *context, struct fib * fibptr) case WRITE_10: case READ_12: case WRITE_12: + case READ_16: + case WRITE_16: if(le32_to_cpu(srbreply->data_xfer_length) < scsicmd->underflow ) { printk(KERN_WARNING"aacraid: SCSI CMD underflow\n"); } else { @@ -1850,8 +2055,8 @@ static void aac_srb_callback(void *context, struct fib * fibptr) sizeof(scsicmd->sense_buffer) : le32_to_cpu(srbreply->sense_data_size); #ifdef AAC_DETAILED_STATUS_INFO - dprintk((KERN_WARNING "aac_srb_callback: check condition, status = %d len=%d\n", - le32_to_cpu(srbreply->status), len)); + printk(KERN_WARNING "aac_srb_callback: check condition, status = %d len=%d\n", + le32_to_cpu(srbreply->status), len); #endif memcpy(scsicmd->sense_buffer, srbreply->sense_data, len); diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h index e40528185d48..6fd5074efa5c 100644 --- a/drivers/scsi/aacraid/aacraid.h +++ b/drivers/scsi/aacraid/aacraid.h @@ -1,6 +1,10 @@ #if (!defined(dprintk)) # define dprintk(x) #endif +/* eg: if (nblank(dprintk(x))) */ +#define _nblank(x) #x +#define nblank(x) _nblank(x)[0] + /*------------------------------------------------------------------------------ * D E F I N E S @@ -1012,6 +1016,7 @@ struct aac_dev /* macro side-effects BEWARE */ # define raw_io_interface \ init->InitStructRevision==cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_4) + u8 raw_io_64; u8 printf_enabled; }; @@ -1362,8 +1367,10 @@ struct aac_srb_reply #define VM_CtBlockVerify64 18 #define VM_CtHostRead64 19 #define VM_CtHostWrite64 20 +#define VM_DrvErrTblLog 21 +#define VM_NameServe64 22 -#define MAX_VMCOMMAND_NUM 21 /* used for sizing stats array - leave last */ +#define MAX_VMCOMMAND_NUM 23 /* used for sizing stats array - leave last */ /* * Descriptive information (eg, vital stats) @@ -1472,6 +1479,7 @@ struct aac_mntent { manager (eg, filesystem) */ __le32 altoid; /* != oid <==> snapshot or broken mirror exists */ + __le32 capacityhigh; }; #define FSCS_NOTCLEAN 0x0001 /* fsck is neccessary before mounting */ diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c index 75abd0453289..7f11c8540ead 100644 --- a/drivers/scsi/aacraid/comminit.c +++ b/drivers/scsi/aacraid/comminit.c @@ -315,6 +315,13 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev) - sizeof(struct aac_fibhdr) - sizeof(struct aac_write) + sizeof(struct sgmap)) / sizeof(struct sgmap); + dev->raw_io_64 = 0; + if ((!aac_adapter_sync_cmd(dev, GET_ADAPTER_PROPERTIES, + 0, 0, 0, 0, 0, 0, status+0, status+1, status+2, NULL, NULL)) && + (status[0] == 0x00000001)) { + if (status[1] & AAC_OPT_NEW_COMM_64) + dev->raw_io_64 = 1; + } if ((!aac_adapter_sync_cmd(dev, GET_COMM_PREFERRED_SETTINGS, 0, 0, 0, 0, 0, 0, status+0, status+1, status+2, status+3, status+4)) diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c index 4ff29d7f5825..31d96b965ee1 100644 --- a/drivers/scsi/aacraid/linit.c +++ b/drivers/scsi/aacraid/linit.c @@ -772,6 +772,7 @@ static int __devinit aac_probe_one(struct pci_dev *pdev, shost->irq = pdev->irq; shost->base = pci_resource_start(pdev, 0); shost->unique_id = unique_id; + shost->max_cmd_len = 16; aac = (struct aac_dev *)shost->hostdata; aac->scsi_host_ptr = shost; From 2f130980d14cb938226011875ca5224cd46dc1f9 Mon Sep 17 00:00:00 2001 From: Mark Haverkamp Date: Mon, 26 Sep 2005 13:02:15 -0700 Subject: [PATCH 156/352] [SCSI] aacraid: aacraid: AIF preallocation (update) Recevied from Mark Salyzyn from Adaptec. Aif pre-allocation is used to pull the kmalloc outside of the locks. Applies to the scsi-misc-2.6 git tree. Signed-off-by: Mark Haverkamp Signed-off-by: James Bottomley --- drivers/scsi/aacraid/commsup.c | 100 ++++++++++++++++++++++++++------- 1 file changed, 81 insertions(+), 19 deletions(-) diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c index a1d303f03480..3741be2f4bfa 100644 --- a/drivers/scsi/aacraid/commsup.c +++ b/drivers/scsi/aacraid/commsup.c @@ -805,7 +805,6 @@ int aac_command_thread(struct aac_dev * dev) { struct hw_fib *hw_fib, *hw_newfib; struct fib *fib, *newfib; - struct aac_queue_block *queues = dev->queues; struct aac_fib_context *fibctx; unsigned long flags; DECLARE_WAITQUEUE(wait, current); @@ -825,21 +824,22 @@ int aac_command_thread(struct aac_dev * dev) * Let the DPC know it has a place to send the AIF's to. */ dev->aif_thread = 1; - add_wait_queue(&queues->queue[HostNormCmdQueue].cmdready, &wait); + add_wait_queue(&dev->queues->queue[HostNormCmdQueue].cmdready, &wait); set_current_state(TASK_INTERRUPTIBLE); + dprintk ((KERN_INFO "aac_command_thread start\n")); while(1) { - spin_lock_irqsave(queues->queue[HostNormCmdQueue].lock, flags); - while(!list_empty(&(queues->queue[HostNormCmdQueue].cmdq))) { + spin_lock_irqsave(dev->queues->queue[HostNormCmdQueue].lock, flags); + while(!list_empty(&(dev->queues->queue[HostNormCmdQueue].cmdq))) { struct list_head *entry; struct aac_aifcmd * aifcmd; set_current_state(TASK_RUNNING); - - entry = queues->queue[HostNormCmdQueue].cmdq.next; + + entry = dev->queues->queue[HostNormCmdQueue].cmdq.next; list_del(entry); - - spin_unlock_irqrestore(queues->queue[HostNormCmdQueue].lock, flags); + + spin_unlock_irqrestore(dev->queues->queue[HostNormCmdQueue].lock, flags); fib = list_entry(entry, struct fib, fiblink); /* * We will process the FIB here or pass it to a @@ -869,9 +869,54 @@ int aac_command_thread(struct aac_dev * dev) u32 time_now, time_last; unsigned long flagv; + unsigned num; + struct hw_fib ** hw_fib_pool, ** hw_fib_p; + struct fib ** fib_pool, ** fib_p; time_now = jiffies/HZ; + /* + * Warning: no sleep allowed while + * holding spinlock. We take the estimate + * and pre-allocate a set of fibs outside the + * lock. + */ + num = le32_to_cpu(dev->init->AdapterFibsSize) + / sizeof(struct hw_fib); /* some extra */ + spin_lock_irqsave(&dev->fib_lock, flagv); + entry = dev->fib_list.next; + while (entry != &dev->fib_list) { + entry = entry->next; + ++num; + } + spin_unlock_irqrestore(&dev->fib_lock, flagv); + hw_fib_pool = NULL; + fib_pool = NULL; + if (num + && ((hw_fib_pool = kmalloc(sizeof(struct hw_fib *) * num, GFP_KERNEL))) + && ((fib_pool = kmalloc(sizeof(struct fib *) * num, GFP_KERNEL)))) { + hw_fib_p = hw_fib_pool; + fib_p = fib_pool; + while (hw_fib_p < &hw_fib_pool[num]) { + if (!(*(hw_fib_p++) = kmalloc(sizeof(struct hw_fib), GFP_KERNEL))) { + --hw_fib_p; + break; + } + if (!(*(fib_p++) = kmalloc(sizeof(struct fib), GFP_KERNEL))) { + kfree(*(--hw_fib_p)); + break; + } + } + if ((num = hw_fib_p - hw_fib_pool) == 0) { + kfree(fib_pool); + fib_pool = NULL; + kfree(hw_fib_pool); + hw_fib_pool = NULL; + } + } else if (hw_fib_pool) { + kfree(hw_fib_pool); + hw_fib_pool = NULL; + } spin_lock_irqsave(&dev->fib_lock, flagv); entry = dev->fib_list.next; /* @@ -880,6 +925,8 @@ int aac_command_thread(struct aac_dev * dev) * fib, and then set the event to wake up the * thread that is waiting for it. */ + hw_fib_p = hw_fib_pool; + fib_p = fib_pool; while (entry != &dev->fib_list) { /* * Extract the fibctx @@ -912,9 +959,11 @@ int aac_command_thread(struct aac_dev * dev) * Warning: no sleep allowed while * holding spinlock */ - hw_newfib = kmalloc(sizeof(struct hw_fib), GFP_ATOMIC); - newfib = kmalloc(sizeof(struct fib), GFP_ATOMIC); - if (newfib && hw_newfib) { + if (hw_fib_p < &hw_fib_pool[num]) { + hw_newfib = *hw_fib_p; + *(hw_fib_p++) = NULL; + newfib = *fib_p; + *(fib_p++) = NULL; /* * Make the copy of the FIB */ @@ -929,15 +978,11 @@ int aac_command_thread(struct aac_dev * dev) fibctx->count++; /* * Set the event to wake up the - * thread that will waiting. + * thread that is waiting. */ up(&fibctx->wait_sem); } else { printk(KERN_WARNING "aifd: didn't allocate NewFib.\n"); - if(newfib) - kfree(newfib); - if(hw_newfib) - kfree(hw_newfib); } entry = entry->next; } @@ -947,21 +992,38 @@ int aac_command_thread(struct aac_dev * dev) *(__le32 *)hw_fib->data = cpu_to_le32(ST_OK); fib_adapter_complete(fib, sizeof(u32)); spin_unlock_irqrestore(&dev->fib_lock, flagv); + /* Free up the remaining resources */ + hw_fib_p = hw_fib_pool; + fib_p = fib_pool; + while (hw_fib_p < &hw_fib_pool[num]) { + if (*hw_fib_p) + kfree(*hw_fib_p); + if (*fib_p) + kfree(*fib_p); + ++fib_p; + ++hw_fib_p; + } + if (hw_fib_pool) + kfree(hw_fib_pool); + if (fib_pool) + kfree(fib_pool); } - spin_lock_irqsave(queues->queue[HostNormCmdQueue].lock, flags); kfree(fib); + spin_lock_irqsave(dev->queues->queue[HostNormCmdQueue].lock, flags); } /* * There are no more AIF's */ - spin_unlock_irqrestore(queues->queue[HostNormCmdQueue].lock, flags); + spin_unlock_irqrestore(dev->queues->queue[HostNormCmdQueue].lock, flags); schedule(); if(signal_pending(current)) break; set_current_state(TASK_INTERRUPTIBLE); } - remove_wait_queue(&queues->queue[HostNormCmdQueue].cmdready, &wait); + if (dev->queues) + remove_wait_queue(&dev->queues->queue[HostNormCmdQueue].cmdready, &wait); dev->aif_thread = 0; complete_and_exit(&dev->aif_completion, 0); + return 0; } From 131256cf203d0df62014dda8453a70cb6af0d0bb Mon Sep 17 00:00:00 2001 From: Mark Haverkamp Date: Mon, 26 Sep 2005 13:04:56 -0700 Subject: [PATCH 157/352] [SCSI] aacraid: handle AIF hotplug events (update) Received from Mark Salyzyn from Adaptec. Hotplug sniffs the AIFs (events) from the adapter and if a container change resulting in the device going offline (container zero), online (container zero completed) or changing capacity (morph) it will take actions by calling the appropriate API. Signed-off-by: Mark Haverkamp Signed-off-by: James Bottomley --- drivers/scsi/aacraid/aachba.c | 4 +- drivers/scsi/aacraid/aacraid.h | 4 + drivers/scsi/aacraid/commsup.c | 274 ++++++++++++++++++++++++++++++++- 3 files changed, 280 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c index 0a209b2cd695..85d133c40bd3 100644 --- a/drivers/scsi/aacraid/aachba.c +++ b/drivers/scsi/aacraid/aachba.c @@ -479,7 +479,7 @@ static int aac_get_container_name(struct scsi_cmnd * scsicmd, int cid) * is updated in the struct fsa_dev_info structure rather than returned. */ -static int probe_container(struct aac_dev *dev, int cid) +int probe_container(struct aac_dev *dev, int cid) { struct fsa_dev_info *fsa_dev_ptr; int status; @@ -1471,6 +1471,8 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd) case TEST_UNIT_READY: spin_unlock_irq(host->host_lock); probe_container(dev, cid); + if ((fsa_dev_ptr[cid].valid & 1) == 0) + fsa_dev_ptr[cid].valid = 0; spin_lock_irq(host->host_lock); if (fsa_dev_ptr[cid].valid == 0) { scsicmd->result = DID_NO_CONNECT << 16; diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h index 6fd5074efa5c..0880f4807fc9 100644 --- a/drivers/scsi/aacraid/aacraid.h +++ b/drivers/scsi/aacraid/aacraid.h @@ -780,7 +780,9 @@ struct fsa_dev_info { u64 last; u64 size; u32 type; + u32 config_waiting_on; u16 queue_depth; + u8 config_needed; u8 valid; u8 ro; u8 locked; @@ -1715,6 +1717,7 @@ extern struct aac_common aac_config; #define AifCmdJobProgress 2 /* Progress report */ #define AifJobCtrZero 101 /* Array Zero progress */ #define AifJobStsSuccess 1 /* Job completes */ +#define AifJobStsRunning 102 /* Job running */ #define AifCmdAPIReport 3 /* Report from other user of API */ #define AifCmdDriverNotify 4 /* Notify host driver of event */ #define AifDenMorphComplete 200 /* A morph operation completed */ @@ -1785,6 +1788,7 @@ int fib_adapter_complete(struct fib * fibptr, unsigned short size); struct aac_driver_ident* aac_get_driver_ident(int devtype); int aac_get_adapter_info(struct aac_dev* dev); int aac_send_shutdown(struct aac_dev *dev); +int probe_container(struct aac_dev *dev, int cid); extern int numacb; extern int acbsize; extern char aac_driver_version[]; diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c index 3741be2f4bfa..69985b08a270 100644 --- a/drivers/scsi/aacraid/commsup.c +++ b/drivers/scsi/aacraid/commsup.c @@ -39,6 +39,7 @@ #include #include #include +#include #include #include "aacraid.h" @@ -791,6 +792,268 @@ void aac_printf(struct aac_dev *dev, u32 val) memset(cp, 0, 256); } + +/** + * aac_handle_aif - Handle a message from the firmware + * @dev: Which adapter this fib is from + * @fibptr: Pointer to fibptr from adapter + * + * This routine handles a driver notify fib from the adapter and + * dispatches it to the appropriate routine for handling. + */ + +static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr) +{ + struct hw_fib * hw_fib = fibptr->hw_fib; + struct aac_aifcmd * aifcmd = (struct aac_aifcmd *)hw_fib->data; + int busy; + u32 container; + struct scsi_device *device; + enum { + NOTHING, + DELETE, + ADD, + CHANGE + } device_config_needed; + + /* Sniff for container changes */ + + if (!dev) + return; + container = (u32)-1; + + /* + * We have set this up to try and minimize the number of + * re-configures that take place. As a result of this when + * certain AIF's come in we will set a flag waiting for another + * type of AIF before setting the re-config flag. + */ + switch (le32_to_cpu(aifcmd->command)) { + case AifCmdDriverNotify: + switch (le32_to_cpu(((u32 *)aifcmd->data)[0])) { + /* + * Morph or Expand complete + */ + case AifDenMorphComplete: + case AifDenVolumeExtendComplete: + container = le32_to_cpu(((u32 *)aifcmd->data)[1]); + if (container >= dev->maximum_num_containers) + break; + + /* + * Find the Scsi_Device associated with the SCSI + * address. Make sure we have the right array, and if + * so set the flag to initiate a new re-config once we + * see an AifEnConfigChange AIF come through. + */ + + if ((dev != NULL) && (dev->scsi_host_ptr != NULL)) { + device = scsi_device_lookup(dev->scsi_host_ptr, + CONTAINER_TO_CHANNEL(container), + CONTAINER_TO_ID(container), + CONTAINER_TO_LUN(container)); + if (device) { + dev->fsa_dev[container].config_needed = CHANGE; + dev->fsa_dev[container].config_waiting_on = AifEnConfigChange; + scsi_device_put(device); + } + } + } + + /* + * If we are waiting on something and this happens to be + * that thing then set the re-configure flag. + */ + if (container != (u32)-1) { + if (container >= dev->maximum_num_containers) + break; + if (dev->fsa_dev[container].config_waiting_on == + le32_to_cpu(*(u32 *)aifcmd->data)) + dev->fsa_dev[container].config_waiting_on = 0; + } else for (container = 0; + container < dev->maximum_num_containers; ++container) { + if (dev->fsa_dev[container].config_waiting_on == + le32_to_cpu(*(u32 *)aifcmd->data)) + dev->fsa_dev[container].config_waiting_on = 0; + } + break; + + case AifCmdEventNotify: + switch (le32_to_cpu(((u32 *)aifcmd->data)[0])) { + /* + * Add an Array. + */ + case AifEnAddContainer: + container = le32_to_cpu(((u32 *)aifcmd->data)[1]); + if (container >= dev->maximum_num_containers) + break; + dev->fsa_dev[container].config_needed = ADD; + dev->fsa_dev[container].config_waiting_on = + AifEnConfigChange; + break; + + /* + * Delete an Array. + */ + case AifEnDeleteContainer: + container = le32_to_cpu(((u32 *)aifcmd->data)[1]); + if (container >= dev->maximum_num_containers) + break; + dev->fsa_dev[container].config_needed = DELETE; + dev->fsa_dev[container].config_waiting_on = + AifEnConfigChange; + break; + + /* + * Container change detected. If we currently are not + * waiting on something else, setup to wait on a Config Change. + */ + case AifEnContainerChange: + container = le32_to_cpu(((u32 *)aifcmd->data)[1]); + if (container >= dev->maximum_num_containers) + break; + if (dev->fsa_dev[container].config_waiting_on) + break; + dev->fsa_dev[container].config_needed = CHANGE; + dev->fsa_dev[container].config_waiting_on = + AifEnConfigChange; + break; + + case AifEnConfigChange: + break; + + } + + /* + * If we are waiting on something and this happens to be + * that thing then set the re-configure flag. + */ + if (container != (u32)-1) { + if (container >= dev->maximum_num_containers) + break; + if (dev->fsa_dev[container].config_waiting_on == + le32_to_cpu(*(u32 *)aifcmd->data)) + dev->fsa_dev[container].config_waiting_on = 0; + } else for (container = 0; + container < dev->maximum_num_containers; ++container) { + if (dev->fsa_dev[container].config_waiting_on == + le32_to_cpu(*(u32 *)aifcmd->data)) + dev->fsa_dev[container].config_waiting_on = 0; + } + break; + + case AifCmdJobProgress: + /* + * These are job progress AIF's. When a Clear is being + * done on a container it is initially created then hidden from + * the OS. When the clear completes we don't get a config + * change so we monitor the job status complete on a clear then + * wait for a container change. + */ + + if ((((u32 *)aifcmd->data)[1] == cpu_to_le32(AifJobCtrZero)) + && ((((u32 *)aifcmd->data)[6] == ((u32 *)aifcmd->data)[5]) + || (((u32 *)aifcmd->data)[4] == cpu_to_le32(AifJobStsSuccess)))) { + for (container = 0; + container < dev->maximum_num_containers; + ++container) { + /* + * Stomp on all config sequencing for all + * containers? + */ + dev->fsa_dev[container].config_waiting_on = + AifEnContainerChange; + dev->fsa_dev[container].config_needed = ADD; + } + } + if ((((u32 *)aifcmd->data)[1] == cpu_to_le32(AifJobCtrZero)) + && (((u32 *)aifcmd->data)[6] == 0) + && (((u32 *)aifcmd->data)[4] == cpu_to_le32(AifJobStsRunning))) { + for (container = 0; + container < dev->maximum_num_containers; + ++container) { + /* + * Stomp on all config sequencing for all + * containers? + */ + dev->fsa_dev[container].config_waiting_on = + AifEnContainerChange; + dev->fsa_dev[container].config_needed = DELETE; + } + } + break; + } + + device_config_needed = NOTHING; + for (container = 0; container < dev->maximum_num_containers; + ++container) { + if ((dev->fsa_dev[container].config_waiting_on == 0) + && (dev->fsa_dev[container].config_needed != NOTHING)) { + device_config_needed = + dev->fsa_dev[container].config_needed; + dev->fsa_dev[container].config_needed = NOTHING; + break; + } + } + if (device_config_needed == NOTHING) + return; + + /* + * If we decided that a re-configuration needs to be done, + * schedule it here on the way out the door, please close the door + * behind you. + */ + + busy = 0; + + + /* + * Find the Scsi_Device associated with the SCSI address, + * and mark it as changed, invalidating the cache. This deals + * with changes to existing device IDs. + */ + + if (!dev || !dev->scsi_host_ptr) + return; + /* + * force reload of disk info via probe_container + */ + if ((device_config_needed == CHANGE) + && (dev->fsa_dev[container].valid == 1)) + dev->fsa_dev[container].valid = 2; + if ((device_config_needed == CHANGE) || + (device_config_needed == ADD)) + probe_container(dev, container); + device = scsi_device_lookup(dev->scsi_host_ptr, + CONTAINER_TO_CHANNEL(container), + CONTAINER_TO_ID(container), + CONTAINER_TO_LUN(container)); + if (device) { + switch (device_config_needed) { + case DELETE: + scsi_remove_device(device); + break; + case CHANGE: + if (!dev->fsa_dev[container].valid) { + scsi_remove_device(device); + break; + } + scsi_rescan_device(&device->sdev_gendev); + + default: + break; + } + scsi_device_put(device); + } + if (device_config_needed == ADD) { + scsi_add_device(dev->scsi_host_ptr, + CONTAINER_TO_CHANNEL(container), + CONTAINER_TO_ID(container), + CONTAINER_TO_LUN(container)); + } + +} + /** * aac_command_thread - command processing thread * @dev: Adapter to monitor @@ -860,6 +1123,7 @@ int aac_command_thread(struct aac_dev * dev) aifcmd = (struct aac_aifcmd *) hw_fib->data; if (aifcmd->command == cpu_to_le32(AifCmdDriverNotify)) { /* Handle Driver Notify Events */ + aac_handle_aif(dev, fib); *(__le32 *)hw_fib->data = cpu_to_le32(ST_OK); fib_adapter_complete(fib, (u16)sizeof(u32)); } else { @@ -872,7 +1136,15 @@ int aac_command_thread(struct aac_dev * dev) unsigned num; struct hw_fib ** hw_fib_pool, ** hw_fib_p; struct fib ** fib_pool, ** fib_p; - + + /* Sniff events */ + if ((aifcmd->command == + cpu_to_le32(AifCmdEventNotify)) || + (aifcmd->command == + cpu_to_le32(AifCmdJobProgress))) { + aac_handle_aif(dev, fib); + } + time_now = jiffies/HZ; /* From 08efb7b6116927c8b6e0af5064448e3aa13300e6 Mon Sep 17 00:00:00 2001 From: Mark Haverkamp Date: Tue, 20 Sep 2005 12:56:36 -0700 Subject: [PATCH 158/352] [SCSI] aacraid: error return checking This patch adds some additional error return checking and error return value propagation during initialization. Also, the deprecation of pci_module_init with pci_register_driver along with the change in return values. Signed-off-by: Mark Haverkamp Signed-off-by: James Bottomley --- drivers/scsi/aacraid/linit.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c index 31d96b965ee1..de8490a92831 100644 --- a/drivers/scsi/aacraid/linit.c +++ b/drivers/scsi/aacraid/linit.c @@ -748,7 +748,8 @@ static int __devinit aac_probe_one(struct pci_dev *pdev, unique_id++; } - if (pci_enable_device(pdev)) + error = pci_enable_device(pdev); + if (error) goto out; if (pci_set_dma_mask(pdev, 0xFFFFFFFFULL) || @@ -800,7 +801,9 @@ static int __devinit aac_probe_one(struct pci_dev *pdev, goto out_free_fibs; aac->maximum_num_channels = aac_drivers[index].channels; - aac_get_adapter_info(aac); + error = aac_get_adapter_info(aac); + if (error < 0) + goto out_deinit; /* * Lets override negotiations and drop the maximum SG limit to 34 @@ -928,8 +931,8 @@ static int __init aac_init(void) printk(KERN_INFO "Adaptec %s driver (%s)\n", AAC_DRIVERNAME, aac_driver_version); - error = pci_module_init(&aac_pci_driver); - if (error) + error = pci_register_driver(&aac_pci_driver); + if (error < 0) return error; aac_cfg_major = register_chrdev( 0, "aac", &aac_cfg_fops); From 9203344cb8ecc554a1d36eae6661235ed422cf59 Mon Sep 17 00:00:00 2001 From: Mark Haverkamp Date: Tue, 20 Sep 2005 12:56:50 -0700 Subject: [PATCH 159/352] [SCSI] aacraid: initialization timeout Received from Mark Salyzyn from Adaptec. In the rare instances where the adapter, or the motherboard, is misbehaving; driver initialization or shutdown becomes problematic. By introducing a 3 minute timeout on the first interrupt driven command during initialization, or the issuance of the adapter shutdown command during driver unload, we can resolve the lockup problems induced by common (but rare) hardware misbehaviors. The timeout during initialization, should it occur, is accompanied by a message presented to the console and the logs indicating that the user should inspect and resolve problems with interrupt routing. Signed-off-by: Mark Haverkamp Signed-off-by: James Bottomley --- drivers/scsi/aacraid/aachba.c | 2 +- drivers/scsi/aacraid/comminit.c | 2 +- drivers/scsi/aacraid/commsup.c | 30 +++++++++++++++++++++++++++++- 3 files changed, 31 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c index 85d133c40bd3..a0735a247e5b 100644 --- a/drivers/scsi/aacraid/aachba.c +++ b/drivers/scsi/aacraid/aachba.c @@ -692,7 +692,7 @@ int aac_get_adapter_info(struct aac_dev* dev) fibptr, sizeof(*info), FsaNormal, - 1, 1, + -1, 1, /* First `interrupt' command uses special wait */ NULL, NULL); diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c index 7f11c8540ead..9e054a509b41 100644 --- a/drivers/scsi/aacraid/comminit.c +++ b/drivers/scsi/aacraid/comminit.c @@ -195,7 +195,7 @@ int aac_send_shutdown(struct aac_dev * dev) fibctx, sizeof(struct aac_close), FsaNormal, - 1, 1, + -2 /* Timeout silently */, 1, NULL, NULL); if (status == 0) diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c index 69985b08a270..3b983f3ed960 100644 --- a/drivers/scsi/aacraid/commsup.c +++ b/drivers/scsi/aacraid/commsup.c @@ -41,6 +41,7 @@ #include #include #include +#include #include "aacraid.h" @@ -541,7 +542,34 @@ int fib_send(u16 command, struct fib * fibptr, unsigned long size, int priority if (wait) { spin_unlock_irqrestore(&fibptr->event_lock, flags); - down(&fibptr->event_wait); + /* Only set for first known interruptable command */ + if (wait < 0) { + /* + * *VERY* Dangerous to time out a command, the + * assumption is made that we have no hope of + * functioning because an interrupt routing or other + * hardware failure has occurred. + */ + unsigned long count = 36000000L; /* 3 minutes */ + unsigned long qflags; + while (down_trylock(&fibptr->event_wait)) { + if (--count == 0) { + spin_lock_irqsave(q->lock, qflags); + q->numpending--; + list_del(&fibptr->queue); + spin_unlock_irqrestore(q->lock, qflags); + if (wait == -1) { + printk(KERN_ERR "aacraid: fib_send: first asynchronous command timed out.\n" + "Usually a result of a PCI interrupt routing problem;\n" + "update mother board BIOS or consider utilizing one of\n" + "the SAFE mode kernel options (acpi, apic etc)\n"); + } + return -ETIMEDOUT; + } + udelay(5); + } + } else + down(&fibptr->event_wait); if(fibptr->done == 0) BUG(); From 63a70eeaafe0e17e7f45cba495cb457d06070419 Mon Sep 17 00:00:00 2001 From: Mark Haverkamp Date: Tue, 20 Sep 2005 12:57:04 -0700 Subject: [PATCH 160/352] [SCSI] aacraid: fib size math fix Received from Mark Salyzyn from Adaptec. The size of the command packet's scatter gather list maximum size was miscalculated in the low range leading to the driver initialization limiting the maximum i/o size that could go to the Adapter. There were no negative operational side effects resulting from this bad math, only a subtle limit in performance of the Adapter at the top end of the range. Signed-off-by: Mark Haverkamp Signed-off-by: James Bottomley --- drivers/scsi/aacraid/aachba.c | 8 ++++---- drivers/scsi/aacraid/comminit.c | 8 ++++---- 2 files changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c index a0735a247e5b..93416f760e5a 100644 --- a/drivers/scsi/aacraid/aachba.c +++ b/drivers/scsi/aacraid/aachba.c @@ -843,8 +843,8 @@ int aac_get_adapter_info(struct aac_dev* dev) if (!(dev->raw_io_interface)) { dev->scsi_host_ptr->sg_tablesize = (dev->max_fib_size - sizeof(struct aac_fibhdr) - - sizeof(struct aac_write) + sizeof(struct sgmap)) / - sizeof(struct sgmap); + sizeof(struct aac_write) + sizeof(struct sgentry)) / + sizeof(struct sgentry); if (dev->dac_support) { /* * 38 scatter gather elements @@ -853,8 +853,8 @@ int aac_get_adapter_info(struct aac_dev* dev) (dev->max_fib_size - sizeof(struct aac_fibhdr) - sizeof(struct aac_write64) + - sizeof(struct sgmap64)) / - sizeof(struct sgmap64); + sizeof(struct sgentry64)) / + sizeof(struct sgentry64); } dev->scsi_host_ptr->max_sectors = AAC_MAX_32BIT_SGBCOUNT; if(!(dev->adapter_info.options & AAC_OPT_NEW_COMM)) { diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c index 9e054a509b41..59a341b2aedc 100644 --- a/drivers/scsi/aacraid/comminit.c +++ b/drivers/scsi/aacraid/comminit.c @@ -313,8 +313,8 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev) dev->max_fib_size = sizeof(struct hw_fib); dev->sg_tablesize = host->sg_tablesize = (dev->max_fib_size - sizeof(struct aac_fibhdr) - - sizeof(struct aac_write) + sizeof(struct sgmap)) - / sizeof(struct sgmap); + - sizeof(struct aac_write) + sizeof(struct sgentry)) + / sizeof(struct sgentry); dev->raw_io_64 = 0; if ((!aac_adapter_sync_cmd(dev, GET_ADAPTER_PROPERTIES, 0, 0, 0, 0, 0, 0, status+0, status+1, status+2, NULL, NULL)) && @@ -349,8 +349,8 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev) dev->max_fib_size = 512; dev->sg_tablesize = host->sg_tablesize = (512 - sizeof(struct aac_fibhdr) - - sizeof(struct aac_write) + sizeof(struct sgmap)) - / sizeof(struct sgmap); + - sizeof(struct aac_write) + sizeof(struct sgentry)) + / sizeof(struct sgentry); host->can_queue = AAC_NUM_IO_FIB; } else if (acbsize == 2048) { host->max_sectors = 512; From 1640a2c385a860ef25be4a8d18a528c4b6f02bd6 Mon Sep 17 00:00:00 2001 From: Mark Haverkamp Date: Tue, 20 Sep 2005 12:57:11 -0700 Subject: [PATCH 161/352] [SCSI] aacraid: remove aac_insert_entry Received from Mark Salyzyn from Adaptec. High Priority Queues have *never* been used in the entire history of the aac based adapters. Associated with this, aac_insert_entry can be removed, SavedIrql can be removed & padding variable can be removed. With the movement of SavedIrql out & replaced with an automatic variable qflags, the locking can be refined somewhat. The sparse warnings did not catch the need for byte swapping in the 'dprintk' debugging print macros, so fixed this up when this code was moved outside of the now refined locking. Signed-off-by: Mark Haverkamp Signed-off-by: James Bottomley --- drivers/scsi/aacraid/aacraid.h | 3 - drivers/scsi/aacraid/commsup.c | 177 ++++++++++----------------------- 2 files changed, 50 insertions(+), 130 deletions(-) diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h index 0880f4807fc9..4a99d2f000f4 100644 --- a/drivers/scsi/aacraid/aacraid.h +++ b/drivers/scsi/aacraid/aacraid.h @@ -306,7 +306,6 @@ enum aac_queue_types { */ #define FsaNormal 1 -#define FsaHigh 2 /* * Define the FIB. The FIB is the where all the requested data and @@ -550,8 +549,6 @@ struct aac_queue { /* This is only valid for adapter to host command queues. */ spinlock_t *lock; /* Spinlock for this queue must take this lock before accessing the lock */ spinlock_t lockdata; /* Actual lock (used only on one side of the lock) */ - unsigned long SavedIrql; /* Previous IRQL when the spin lock is taken */ - u32 padding; /* Padding - FIXME - can remove I believe */ struct list_head cmdq; /* A queue of FIBs which need to be prcessed by the FS thread. This is */ /* only valid for command queues which receive entries from the adapter. */ struct list_head pendingq; /* A queue of outstanding fib's to the adapter. */ diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c index 3b983f3ed960..e4d543a474ae 100644 --- a/drivers/scsi/aacraid/commsup.c +++ b/drivers/scsi/aacraid/commsup.c @@ -271,40 +271,22 @@ static int aac_get_entry (struct aac_dev * dev, u32 qid, struct aac_entry **entr /* Interrupt Moderation, only interrupt for first two entries */ if (idx != le32_to_cpu(*(q->headers.consumer))) { if (--idx == 0) { - if (qid == AdapHighCmdQueue) - idx = ADAP_HIGH_CMD_ENTRIES; - else if (qid == AdapNormCmdQueue) + if (qid == AdapNormCmdQueue) idx = ADAP_NORM_CMD_ENTRIES; - else if (qid == AdapHighRespQueue) - idx = ADAP_HIGH_RESP_ENTRIES; - else if (qid == AdapNormRespQueue) + else idx = ADAP_NORM_RESP_ENTRIES; } if (idx != le32_to_cpu(*(q->headers.consumer))) *nonotify = 1; } - if (qid == AdapHighCmdQueue) { - if (*index >= ADAP_HIGH_CMD_ENTRIES) - *index = 0; - } else if (qid == AdapNormCmdQueue) { + if (qid == AdapNormCmdQueue) { if (*index >= ADAP_NORM_CMD_ENTRIES) *index = 0; /* Wrap to front of the Producer Queue. */ - } - else if (qid == AdapHighRespQueue) - { - if (*index >= ADAP_HIGH_RESP_ENTRIES) - *index = 0; - } - else if (qid == AdapNormRespQueue) - { + } else { if (*index >= ADAP_NORM_RESP_ENTRIES) *index = 0; /* Wrap to front of the Producer Queue. */ } - else { - printk("aacraid: invalid qid\n"); - BUG(); - } if ((*index + 1) == le32_to_cpu(*(q->headers.consumer))) { /* Queue is full */ printk(KERN_WARNING "Queue %d full, %u outstanding.\n", @@ -336,12 +318,8 @@ static int aac_queue_get(struct aac_dev * dev, u32 * index, u32 qid, struct hw_f { struct aac_entry * entry = NULL; int map = 0; - struct aac_queue * q = &dev->queues->queue[qid]; - - spin_lock_irqsave(q->lock, q->SavedIrql); - if (qid == AdapHighCmdQueue || qid == AdapNormCmdQueue) - { + if (qid == AdapNormCmdQueue) { /* if no entries wait for some if caller wants to */ while (!aac_get_entry(dev, qid, &entry, index, nonotify)) { @@ -352,9 +330,7 @@ static int aac_queue_get(struct aac_dev * dev, u32 * index, u32 qid, struct hw_f */ entry->size = cpu_to_le32(le16_to_cpu(hw_fib->header.Size)); map = 1; - } - else if (qid == AdapHighRespQueue || qid == AdapNormRespQueue) - { + } else { while(!aac_get_entry(dev, qid, &entry, index, nonotify)) { /* if no entries wait for some if caller wants to */ @@ -377,42 +353,6 @@ static int aac_queue_get(struct aac_dev * dev, u32 * index, u32 qid, struct hw_f return 0; } - -/** - * aac_insert_entry - insert a queue entry - * @dev: Adapter - * @index: Index of entry to insert - * @qid: Queue number - * @nonotify: Suppress adapter notification - * - * Gets the next free QE off the requested priorty adapter command - * queue and associates the Fib with the QE. The QE represented by - * index is ready to insert on the queue when this routine returns - * success. - */ - -static int aac_insert_entry(struct aac_dev * dev, u32 index, u32 qid, unsigned long nonotify) -{ - struct aac_queue * q = &dev->queues->queue[qid]; - - if(q == NULL) - BUG(); - *(q->headers.producer) = cpu_to_le32(index + 1); - spin_unlock_irqrestore(q->lock, q->SavedIrql); - - if (qid == AdapHighCmdQueue || - qid == AdapNormCmdQueue || - qid == AdapHighRespQueue || - qid == AdapNormRespQueue) - { - if (!nonotify) - aac_adapter_notify(dev, qid); - } - else - printk("Suprise insert!\n"); - return 0; -} - /* * Define the highest level of host to adapter communication routines. * These routines will support host to adapter FS commuication. These @@ -441,12 +381,13 @@ static int aac_insert_entry(struct aac_dev * dev, u32 index, u32 qid, unsigned l int fib_send(u16 command, struct fib * fibptr, unsigned long size, int priority, int wait, int reply, fib_callback callback, void * callback_data) { u32 index; - u32 qid; struct aac_dev * dev = fibptr->dev; unsigned long nointr = 0; struct hw_fib * hw_fib = fibptr->hw_fib; struct aac_queue * q; unsigned long flags = 0; + unsigned long qflags; + if (!(hw_fib->header.XferState & cpu_to_le32(HostOwned))) return -EBUSY; /* @@ -499,26 +440,8 @@ int fib_send(u16 command, struct fib * fibptr, unsigned long size, int priority * Get a queue entry connect the FIB to it and send an notify * the adapter a command is ready. */ - if (priority == FsaHigh) { - hw_fib->header.XferState |= cpu_to_le32(HighPriority); - qid = AdapHighCmdQueue; - } else { - hw_fib->header.XferState |= cpu_to_le32(NormalPriority); - qid = AdapNormCmdQueue; - } - q = &dev->queues->queue[qid]; + hw_fib->header.XferState |= cpu_to_le32(NormalPriority); - if(wait) - spin_lock_irqsave(&fibptr->event_lock, flags); - if(aac_queue_get( dev, &index, qid, hw_fib, 1, fibptr, &nointr)<0) - return -EWOULDBLOCK; - dprintk((KERN_DEBUG "fib_send: inserting a queue entry at index %d.\n",index)); - dprintk((KERN_DEBUG "Fib contents:.\n")); - dprintk((KERN_DEBUG " Command = %d.\n", hw_fib->header.Command)); - dprintk((KERN_DEBUG " XferState = %x.\n", hw_fib->header.XferState)); - dprintk((KERN_DEBUG " hw_fib va being sent=%p\n",fibptr->hw_fib)); - dprintk((KERN_DEBUG " hw_fib pa being sent=%lx\n",(ulong)fibptr->hw_fib_pa)); - dprintk((KERN_DEBUG " fib being sent=%p\n",fibptr)); /* * Fill in the Callback and CallbackContext if we are not * going to wait. @@ -527,15 +450,33 @@ int fib_send(u16 command, struct fib * fibptr, unsigned long size, int priority fibptr->callback = callback; fibptr->callback_data = callback_data; } - FIB_COUNTER_INCREMENT(aac_config.FibsSent); - list_add_tail(&fibptr->queue, &q->pendingq); - q->numpending++; fibptr->done = 0; fibptr->flags = 0; - if(aac_insert_entry(dev, index, qid, (nointr & aac_config.irq_mod)) < 0) - return -EWOULDBLOCK; + FIB_COUNTER_INCREMENT(aac_config.FibsSent); + + dprintk((KERN_DEBUG "fib_send: inserting a queue entry at index %d.\n",index)); + dprintk((KERN_DEBUG "Fib contents:.\n")); + dprintk((KERN_DEBUG " Command = %d.\n", hw_fib->header.Command)); + dprintk((KERN_DEBUG " XferState = %x.\n", hw_fib->header.XferState)); + dprintk((KERN_DEBUG " hw_fib va being sent=%p\n",fibptr->hw_fib)); + dprintk((KERN_DEBUG " hw_fib pa being sent=%lx\n",(ulong)fibptr->hw_fib_pa)); + dprintk((KERN_DEBUG " fib being sent=%p\n",fibptr)); + + q = &dev->queues->queue[AdapNormCmdQueue]; + + if(wait) + spin_lock_irqsave(&fibptr->event_lock, flags); + spin_lock_irqsave(q->lock, qflags); + aac_queue_get( dev, &index, AdapNormCmdQueue, hw_fib, 1, fibptr, &nointr); + + list_add_tail(&fibptr->queue, &q->pendingq); + q->numpending++; + *(q->headers.producer) = cpu_to_le32(index + 1); + spin_unlock_irqrestore(q->lock, qflags); + if (!(nointr & aac_config.irq_mod)) + aac_adapter_notify(dev, AdapNormCmdQueue); /* * If the caller wanted us to wait for response wait now. */ @@ -651,15 +592,9 @@ void aac_consumer_free(struct aac_dev * dev, struct aac_queue *q, u32 qid) case HostNormCmdQueue: notify = HostNormCmdNotFull; break; - case HostHighCmdQueue: - notify = HostHighCmdNotFull; - break; case HostNormRespQueue: notify = HostNormRespNotFull; break; - case HostHighRespQueue: - notify = HostHighRespNotFull; - break; default: BUG(); return; @@ -681,9 +616,13 @@ int fib_adapter_complete(struct fib * fibptr, unsigned short size) { struct hw_fib * hw_fib = fibptr->hw_fib; struct aac_dev * dev = fibptr->dev; + struct aac_queue * q; unsigned long nointr = 0; - if (hw_fib->header.XferState == 0) + unsigned long qflags; + + if (hw_fib->header.XferState == 0) { return 0; + } /* * If we plan to do anything check the structure type first. */ @@ -698,37 +637,21 @@ int fib_adapter_complete(struct fib * fibptr, unsigned short size) * send the completed cdb to the adapter. */ if (hw_fib->header.XferState & cpu_to_le32(SentFromAdapter)) { + u32 index; hw_fib->header.XferState |= cpu_to_le32(HostProcessed); - if (hw_fib->header.XferState & cpu_to_le32(HighPriority)) { - u32 index; - if (size) - { - size += sizeof(struct aac_fibhdr); - if (size > le16_to_cpu(hw_fib->header.SenderSize)) - return -EMSGSIZE; - hw_fib->header.Size = cpu_to_le16(size); - } - if(aac_queue_get(dev, &index, AdapHighRespQueue, hw_fib, 1, NULL, &nointr) < 0) { - return -EWOULDBLOCK; - } - if (aac_insert_entry(dev, index, AdapHighRespQueue, (nointr & (int)aac_config.irq_mod)) != 0) { - } - } else if (hw_fib->header.XferState & - cpu_to_le32(NormalPriority)) { - u32 index; - - if (size) { - size += sizeof(struct aac_fibhdr); - if (size > le16_to_cpu(hw_fib->header.SenderSize)) - return -EMSGSIZE; - hw_fib->header.Size = cpu_to_le16(size); - } - if (aac_queue_get(dev, &index, AdapNormRespQueue, hw_fib, 1, NULL, &nointr) < 0) - return -EWOULDBLOCK; - if (aac_insert_entry(dev, index, AdapNormRespQueue, (nointr & (int)aac_config.irq_mod)) != 0) - { - } + if (size) { + size += sizeof(struct aac_fibhdr); + if (size > le16_to_cpu(hw_fib->header.SenderSize)) + return -EMSGSIZE; + hw_fib->header.Size = cpu_to_le16(size); } + q = &dev->queues->queue[AdapNormRespQueue]; + spin_lock_irqsave(q->lock, qflags); + aac_queue_get(dev, &index, AdapNormRespQueue, hw_fib, 1, NULL, &nointr); + *(q->headers.producer) = cpu_to_le32(index + 1); + spin_unlock_irqrestore(q->lock, qflags); + if (!(nointr & (int)aac_config.irq_mod)) + aac_adapter_notify(dev, AdapNormRespQueue); } else { From c5bd50a9533533d7b9ac3469fa679b2368e7e26c Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Mon, 26 Sep 2005 16:06:03 -0700 Subject: [PATCH 162/352] [SPARC64]: Simplify Spitfire D-cache page flush. It tries to batch up the tag loads and comparisons, and then the stores. And this is just complicated instead of efficient. Also, make the symbol of the Cheetah version more grepable. Signed-off-by: David S. Miller --- arch/sparc64/mm/ultra.S | 69 ++++++++++++++--------------------------- 1 file changed, 23 insertions(+), 46 deletions(-) diff --git a/arch/sparc64/mm/ultra.S b/arch/sparc64/mm/ultra.S index b2ee9b53227f..5ff5e42fb9d4 100644 --- a/arch/sparc64/mm/ultra.S +++ b/arch/sparc64/mm/ultra.S @@ -144,42 +144,29 @@ __flush_icache_page: /* %o0 = phys_page */ #define DTAG_MASK 0x3 + /* This routine is Spitfire specific so the hardcoded + * D-cache size and line-size are OK. + */ .align 64 .globl __flush_dcache_page __flush_dcache_page: /* %o0=kaddr, %o1=flush_icache */ sethi %uhi(PAGE_OFFSET), %g1 sllx %g1, 32, %g1 - sub %o0, %g1, %o0 - clr %o4 - srlx %o0, 11, %o0 - sethi %hi(1 << 14), %o2 -1: ldxa [%o4] ASI_DCACHE_TAG, %o3 ! LSU Group - add %o4, (1 << 5), %o4 ! IEU0 - ldxa [%o4] ASI_DCACHE_TAG, %g1 ! LSU Group - add %o4, (1 << 5), %o4 ! IEU0 - ldxa [%o4] ASI_DCACHE_TAG, %g2 ! LSU Group o3 available - add %o4, (1 << 5), %o4 ! IEU0 - andn %o3, DTAG_MASK, %o3 ! IEU1 - ldxa [%o4] ASI_DCACHE_TAG, %g3 ! LSU Group - add %o4, (1 << 5), %o4 ! IEU0 - andn %g1, DTAG_MASK, %g1 ! IEU1 - cmp %o0, %o3 ! IEU1 Group - be,a,pn %xcc, dflush1 ! CTI - sub %o4, (4 << 5), %o4 ! IEU0 (Group) - cmp %o0, %g1 ! IEU1 Group - andn %g2, DTAG_MASK, %g2 ! IEU0 - be,a,pn %xcc, dflush2 ! CTI - sub %o4, (3 << 5), %o4 ! IEU0 (Group) - cmp %o0, %g2 ! IEU1 Group - andn %g3, DTAG_MASK, %g3 ! IEU0 - be,a,pn %xcc, dflush3 ! CTI - sub %o4, (2 << 5), %o4 ! IEU0 (Group) - cmp %o0, %g3 ! IEU1 Group - be,a,pn %xcc, dflush4 ! CTI - sub %o4, (1 << 5), %o4 ! IEU0 -2: cmp %o4, %o2 ! IEU1 Group - bne,pt %xcc, 1b ! CTI - nop ! IEU0 + sub %o0, %g1, %o0 ! physical address + srlx %o0, 11, %o0 ! make D-cache TAG + sethi %hi(1 << 14), %o2 ! D-cache size + sub %o2, (1 << 5), %o2 ! D-cache line size +1: ldxa [%o2] ASI_DCACHE_TAG, %o3 ! load D-cache TAG + andcc %o3, DTAG_MASK, %g0 ! Valid? + be,pn %xcc, 2f ! Nope, branch + andn %o3, DTAG_MASK, %o3 ! Clear valid bits + cmp %o3, %o0 ! TAG match? + bne,pt %xcc, 2f ! Nope, branch + nop + stxa %g0, [%o2] ASI_DCACHE_TAG ! Invalidate TAG + membar #Sync +2: brnz,pt %o2, 1b + sub %o2, (1 << 5), %o2 ! D-cache line size /* The I-cache does not snoop local stores so we * better flush that too when necessary. @@ -189,20 +176,10 @@ __flush_dcache_page: /* %o0=kaddr, %o1=flush_icache */ retl nop -dflush1:stxa %g0, [%o4] ASI_DCACHE_TAG - add %o4, (1 << 5), %o4 -dflush2:stxa %g0, [%o4] ASI_DCACHE_TAG - add %o4, (1 << 5), %o4 -dflush3:stxa %g0, [%o4] ASI_DCACHE_TAG - add %o4, (1 << 5), %o4 -dflush4:stxa %g0, [%o4] ASI_DCACHE_TAG - add %o4, (1 << 5), %o4 - membar #Sync - ba,pt %xcc, 2b - nop #endif /* DCACHE_ALIASING_POSSIBLE */ - .previous .text + .previous + .align 32 __prefill_dtlb: rdpr %pstate, %g7 @@ -283,7 +260,7 @@ __cheetah_flush_tlb_pending: /* 26 insns */ wrpr %g7, 0x0, %pstate #ifdef DCACHE_ALIASING_POSSIBLE -flush_dcpage_cheetah: /* 11 insns */ +__cheetah_flush_dcache_page: /* 11 insns */ sethi %uhi(PAGE_OFFSET), %g1 sllx %g1, 32, %g1 sub %o0, %g1, %o0 @@ -329,8 +306,8 @@ cheetah_patch_cachetlbops: #ifdef DCACHE_ALIASING_POSSIBLE sethi %hi(__flush_dcache_page), %o0 or %o0, %lo(__flush_dcache_page), %o0 - sethi %hi(flush_dcpage_cheetah), %o1 - or %o1, %lo(flush_dcpage_cheetah), %o1 + sethi %hi(__cheetah_flush_dcache_page), %o1 + or %o1, %lo(__cheetah_flush_dcache_page), %o1 call cheetah_patch_one mov 11, %o2 #endif /* DCACHE_ALIASING_POSSIBLE */ From 0dc461069879b45a2d5333bd16990f8080a318fd Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Mon, 26 Sep 2005 16:12:18 -0700 Subject: [PATCH 163/352] [SPARC64]: Do not do TLB pre-filling any more. In order to do it correctly on UltraSPARC-III+ and later we'd need to add some complicated code to set the TAG access extension register before loading the TLB. Since this optimization gives questionable gains, it's best to just remove it for now instead of adding the fix for Ultra-III+ Signed-off-by: David S. Miller --- arch/sparc64/mm/init.c | 6 ------ arch/sparc64/mm/ultra.S | 29 ----------------------------- 2 files changed, 35 deletions(-) diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c index 8d72f8a1268e..9f6ca624892d 100644 --- a/arch/sparc64/mm/init.c +++ b/arch/sparc64/mm/init.c @@ -171,8 +171,6 @@ static __inline__ void clear_dcache_dirty_cpu(struct page *page, unsigned long c : "g1", "g7"); } -extern void __update_mmu_cache(unsigned long mmu_context_hw, unsigned long address, pte_t pte, int code); - void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t pte) { struct page *page; @@ -199,10 +197,6 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t p put_cpu(); } - - if (get_thread_fault_code()) - __update_mmu_cache(CTX_NRBITS(vma->vm_mm->context), - address, pte, get_thread_fault_code()); } void flush_dcache_page(struct page *page) diff --git a/arch/sparc64/mm/ultra.S b/arch/sparc64/mm/ultra.S index 5ff5e42fb9d4..058b8126c1a7 100644 --- a/arch/sparc64/mm/ultra.S +++ b/arch/sparc64/mm/ultra.S @@ -180,35 +180,6 @@ __flush_dcache_page: /* %o0=kaddr, %o1=flush_icache */ .previous - .align 32 -__prefill_dtlb: - rdpr %pstate, %g7 - wrpr %g7, PSTATE_IE, %pstate - mov TLB_TAG_ACCESS, %g1 - stxa %o5, [%g1] ASI_DMMU - stxa %o2, [%g0] ASI_DTLB_DATA_IN - flush %g6 - retl - wrpr %g7, %pstate -__prefill_itlb: - rdpr %pstate, %g7 - wrpr %g7, PSTATE_IE, %pstate - mov TLB_TAG_ACCESS, %g1 - stxa %o5, [%g1] ASI_IMMU - stxa %o2, [%g0] ASI_ITLB_DATA_IN - flush %g6 - retl - wrpr %g7, %pstate - - .globl __update_mmu_cache -__update_mmu_cache: /* %o0=hw_context, %o1=address, %o2=pte, %o3=fault_code */ - srlx %o1, PAGE_SHIFT, %o1 - andcc %o3, FAULT_CODE_DTLB, %g0 - sllx %o1, PAGE_SHIFT, %o5 - bne,pt %xcc, __prefill_dtlb - or %o5, %o0, %o5 - ba,a,pt %xcc, __prefill_itlb - /* Cheetah specific versions, patched at boot time. */ __cheetah_flush_tlb_mm: /* 18 insns */ rdpr %pstate, %g7 From 7625d483a454cbc8090c5d304eea0847210d6b99 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 26 Sep 2005 05:25:59 +0100 Subject: [PATCH 164/352] [PATCH] missing asm/irq.h (cs89x0) Signed-off-by: Al Viro Signed-off-by: Linus Torvalds --- drivers/net/cs89x0.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/cs89x0.c b/drivers/net/cs89x0.c index cdc07ccd7332..a6078ad9b654 100644 --- a/drivers/net/cs89x0.c +++ b/drivers/net/cs89x0.c @@ -140,6 +140,7 @@ #include #include +#include #if ALLOW_DMA #include #endif From ce3a161e693388aaa66d43d26156053311a39b7d Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 26 Sep 2005 05:49:44 +0100 Subject: [PATCH 165/352] [PATCH] useless includes of linux/irq.h in arch/i386 Most of these guys are simply not needed (pulled by other stuff via asm-i386/hardirq.h). One that is not entirely useless is hilarious - arch/i386/oprofile/nmi_timer_int.c includes linux/irq.h... as a way to get linux/errno.h Signed-off-by: Al Viro Signed-off-by: Linus Torvalds --- arch/i386/kernel/acpi/boot.c | 1 - arch/i386/kernel/apic.c | 1 - arch/i386/kernel/cpu/mcheck/k7.c | 1 - arch/i386/kernel/cpu/mcheck/non-fatal.c | 1 - arch/i386/kernel/cpu/mcheck/p4.c | 1 - arch/i386/kernel/cpu/mcheck/p5.c | 1 - arch/i386/kernel/cpu/mcheck/p6.c | 1 - arch/i386/kernel/cpu/mcheck/winchip.c | 1 - arch/i386/kernel/crash.c | 2 -- arch/i386/kernel/i8259.c | 3 --- arch/i386/kernel/io_apic.c | 1 - arch/i386/kernel/mpparse.c | 1 - arch/i386/kernel/nmi.c | 1 - arch/i386/kernel/process.c | 2 -- arch/i386/kernel/smp.c | 1 - arch/i386/kernel/smpboot.c | 1 - arch/i386/kernel/timers/timer_pit.c | 1 - arch/i386/kernel/traps.c | 1 - arch/i386/mach-default/setup.c | 1 - arch/i386/mach-visws/setup.c | 1 - arch/i386/mach-visws/visws_apic.c | 1 - arch/i386/mach-voyager/setup.c | 1 - arch/i386/mach-voyager/voyager_basic.c | 1 - arch/i386/mach-voyager/voyager_smp.c | 2 -- arch/i386/mach-voyager/voyager_thread.c | 2 -- arch/i386/oprofile/nmi_timer_int.c | 2 +- arch/i386/pci/acpi.c | 1 - arch/i386/pci/irq.c | 1 - arch/i386/power/cpu.c | 17 ----------------- 29 files changed, 1 insertion(+), 51 deletions(-) diff --git a/arch/i386/kernel/acpi/boot.c b/arch/i386/kernel/acpi/boot.c index a63351c085c6..838437b2d241 100644 --- a/arch/i386/kernel/acpi/boot.c +++ b/arch/i386/kernel/acpi/boot.c @@ -27,7 +27,6 @@ #include #include #include -#include #include #include diff --git a/arch/i386/kernel/apic.c b/arch/i386/kernel/apic.c index a22a866de8f9..5546ddebec33 100644 --- a/arch/i386/kernel/apic.c +++ b/arch/i386/kernel/apic.c @@ -18,7 +18,6 @@ #include #include -#include #include #include #include diff --git a/arch/i386/kernel/cpu/mcheck/k7.c b/arch/i386/kernel/cpu/mcheck/k7.c index c4abe7657397..7c6b9c73522f 100644 --- a/arch/i386/kernel/cpu/mcheck/k7.c +++ b/arch/i386/kernel/cpu/mcheck/k7.c @@ -7,7 +7,6 @@ #include #include #include -#include #include #include diff --git a/arch/i386/kernel/cpu/mcheck/non-fatal.c b/arch/i386/kernel/cpu/mcheck/non-fatal.c index 7864ddfccf07..82dffe0d4954 100644 --- a/arch/i386/kernel/cpu/mcheck/non-fatal.c +++ b/arch/i386/kernel/cpu/mcheck/non-fatal.c @@ -12,7 +12,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/i386/kernel/cpu/mcheck/p4.c b/arch/i386/kernel/cpu/mcheck/p4.c index 0abccb6fdf9e..1d1e885f500a 100644 --- a/arch/i386/kernel/cpu/mcheck/p4.c +++ b/arch/i386/kernel/cpu/mcheck/p4.c @@ -6,7 +6,6 @@ #include #include #include -#include #include #include diff --git a/arch/i386/kernel/cpu/mcheck/p5.c b/arch/i386/kernel/cpu/mcheck/p5.c index ec0614cd2925..3a2e24baddc7 100644 --- a/arch/i386/kernel/cpu/mcheck/p5.c +++ b/arch/i386/kernel/cpu/mcheck/p5.c @@ -6,7 +6,6 @@ #include #include #include -#include #include #include diff --git a/arch/i386/kernel/cpu/mcheck/p6.c b/arch/i386/kernel/cpu/mcheck/p6.c index f01b73f947e1..3c035b8fa3d9 100644 --- a/arch/i386/kernel/cpu/mcheck/p6.c +++ b/arch/i386/kernel/cpu/mcheck/p6.c @@ -6,7 +6,6 @@ #include #include #include -#include #include #include diff --git a/arch/i386/kernel/cpu/mcheck/winchip.c b/arch/i386/kernel/cpu/mcheck/winchip.c index 7bae68fa168f..5b9d2dd411d3 100644 --- a/arch/i386/kernel/cpu/mcheck/winchip.c +++ b/arch/i386/kernel/cpu/mcheck/winchip.c @@ -6,7 +6,6 @@ #include #include #include -#include #include #include diff --git a/arch/i386/kernel/crash.c b/arch/i386/kernel/crash.c index 913be77bb844..0248e084017c 100644 --- a/arch/i386/kernel/crash.c +++ b/arch/i386/kernel/crash.c @@ -11,10 +11,8 @@ #include #include #include -#include #include #include -#include #include #include #include diff --git a/arch/i386/kernel/i8259.c b/arch/i386/kernel/i8259.c index 178f4e9bac9d..323ef8ab3244 100644 --- a/arch/i386/kernel/i8259.c +++ b/arch/i386/kernel/i8259.c @@ -16,7 +16,6 @@ #include #include #include -#include #include #include #include @@ -25,8 +24,6 @@ #include #include -#include - #include /* diff --git a/arch/i386/kernel/io_apic.c b/arch/i386/kernel/io_apic.c index 378313b0cce9..fb3991e8229e 100644 --- a/arch/i386/kernel/io_apic.c +++ b/arch/i386/kernel/io_apic.c @@ -21,7 +21,6 @@ */ #include -#include #include #include #include diff --git a/arch/i386/kernel/mpparse.c b/arch/i386/kernel/mpparse.c index 15949fd08109..27aabfceb67e 100644 --- a/arch/i386/kernel/mpparse.c +++ b/arch/i386/kernel/mpparse.c @@ -14,7 +14,6 @@ */ #include -#include #include #include #include diff --git a/arch/i386/kernel/nmi.c b/arch/i386/kernel/nmi.c index 0178457db721..72515b8a1b12 100644 --- a/arch/i386/kernel/nmi.c +++ b/arch/i386/kernel/nmi.c @@ -15,7 +15,6 @@ #include #include -#include #include #include #include diff --git a/arch/i386/kernel/process.c b/arch/i386/kernel/process.c index b45cbf93d439..7a14fdfd3af9 100644 --- a/arch/i386/kernel/process.c +++ b/arch/i386/kernel/process.c @@ -47,13 +47,11 @@ #include #include #include -#include #include #ifdef CONFIG_MATH_EMULATION #include #endif -#include #include #include diff --git a/arch/i386/kernel/smp.c b/arch/i386/kernel/smp.c index 48b55db3680f..218d725a5a1e 100644 --- a/arch/i386/kernel/smp.c +++ b/arch/i386/kernel/smp.c @@ -11,7 +11,6 @@ #include #include -#include #include #include #include diff --git a/arch/i386/kernel/smpboot.c b/arch/i386/kernel/smpboot.c index 5f0a95d76a4f..1fb26d0e30b6 100644 --- a/arch/i386/kernel/smpboot.c +++ b/arch/i386/kernel/smpboot.c @@ -42,7 +42,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/i386/kernel/timers/timer_pit.c b/arch/i386/kernel/timers/timer_pit.c index eddb64038234..e42e46d35159 100644 --- a/arch/i386/kernel/timers/timer_pit.c +++ b/arch/i386/kernel/timers/timer_pit.c @@ -6,7 +6,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c index 431a551e46ea..19e90bdd84ea 100644 --- a/arch/i386/kernel/traps.c +++ b/arch/i386/kernel/traps.c @@ -52,7 +52,6 @@ #include #include -#include #include #include "mach_traps.h" diff --git a/arch/i386/mach-default/setup.c b/arch/i386/mach-default/setup.c index e5a1a83d09ef..b4a7455c6993 100644 --- a/arch/i386/mach-default/setup.c +++ b/arch/i386/mach-default/setup.c @@ -5,7 +5,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/i386/mach-visws/setup.c b/arch/i386/mach-visws/setup.c index 26ada6fc0d77..07fac7e749c7 100644 --- a/arch/i386/mach-visws/setup.c +++ b/arch/i386/mach-visws/setup.c @@ -5,7 +5,6 @@ #include #include -#include #include #include diff --git a/arch/i386/mach-visws/visws_apic.c b/arch/i386/mach-visws/visws_apic.c index 04e6585849a2..3e64fb721291 100644 --- a/arch/i386/mach-visws/visws_apic.c +++ b/arch/i386/mach-visws/visws_apic.c @@ -19,7 +19,6 @@ #include #include #include -#include #include #include diff --git a/arch/i386/mach-voyager/setup.c b/arch/i386/mach-voyager/setup.c index df123fc487bb..7d8a3acb9441 100644 --- a/arch/i386/mach-voyager/setup.c +++ b/arch/i386/mach-voyager/setup.c @@ -4,7 +4,6 @@ #include #include -#include #include #include #include diff --git a/arch/i386/mach-voyager/voyager_basic.c b/arch/i386/mach-voyager/voyager_basic.c index cc69875d979b..aa49a33a572c 100644 --- a/arch/i386/mach-voyager/voyager_basic.c +++ b/arch/i386/mach-voyager/voyager_basic.c @@ -27,7 +27,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/i386/mach-voyager/voyager_smp.c b/arch/i386/mach-voyager/voyager_smp.c index 46b0cf4a31e0..72a1b9cae2e4 100644 --- a/arch/i386/mach-voyager/voyager_smp.c +++ b/arch/i386/mach-voyager/voyager_smp.c @@ -30,8 +30,6 @@ #include #include -#include - /* TLB state -- visible externally, indexed physically */ DEFINE_PER_CPU(struct tlb_state, cpu_tlbstate) ____cacheline_aligned = { &init_mm, 0 }; diff --git a/arch/i386/mach-voyager/voyager_thread.c b/arch/i386/mach-voyager/voyager_thread.c index a9341b0eebff..2b03884fdb2a 100644 --- a/arch/i386/mach-voyager/voyager_thread.c +++ b/arch/i386/mach-voyager/voyager_thread.c @@ -31,8 +31,6 @@ #include #include -#include - #define THREAD_NAME "kvoyagerd" /* external variables */ diff --git a/arch/i386/oprofile/nmi_timer_int.c b/arch/i386/oprofile/nmi_timer_int.c index ad93cdd55d63..930a1127bb30 100644 --- a/arch/i386/oprofile/nmi_timer_int.c +++ b/arch/i386/oprofile/nmi_timer_int.c @@ -9,7 +9,7 @@ #include #include -#include +#include #include #include diff --git a/arch/i386/pci/acpi.c b/arch/i386/pci/acpi.c index 2941674f35eb..7e7a202df3c8 100644 --- a/arch/i386/pci/acpi.c +++ b/arch/i386/pci/acpi.c @@ -1,7 +1,6 @@ #include #include #include -#include #include #include #include "pci.h" diff --git a/arch/i386/pci/irq.c b/arch/i386/pci/irq.c index 326a2edc3834..281ed8ab347a 100644 --- a/arch/i386/pci/irq.c +++ b/arch/i386/pci/irq.c @@ -11,7 +11,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/i386/power/cpu.c b/arch/i386/power/cpu.c index 7b0b9ad848e5..b27c5acc79d0 100644 --- a/arch/i386/power/cpu.c +++ b/arch/i386/power/cpu.c @@ -8,25 +8,8 @@ */ #include -#include #include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include #include -#include - -#include -#include -#include -#include static struct saved_context saved_context; From 24558a0f7a00fccd19a6e6502956463f056ce90e Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 26 Sep 2005 06:19:28 +0100 Subject: [PATCH 166/352] [PATCH] m32r: missing __iomem in ioremap() declaration Signed-off-by: Al Viro Signed-off-by: Linus Torvalds --- include/asm-m32r/io.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/asm-m32r/io.h b/include/asm-m32r/io.h index 8e9e481e6996..70ad1c949c2b 100644 --- a/include/asm-m32r/io.h +++ b/include/asm-m32r/io.h @@ -60,7 +60,7 @@ __ioremap(unsigned long offset, unsigned long size, unsigned long flags); * address. */ -static inline void * ioremap(unsigned long offset, unsigned long size) +static inline void __iomem *ioremap(unsigned long offset, unsigned long size) { return __ioremap(offset, size, 0); } From c74dbac71419cdeaca8cd637ee666d6947961695 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 26 Sep 2005 06:19:28 +0100 Subject: [PATCH 167/352] [PATCH] m32r: set CHECKFLAGS properly We do _not_ need "sparse" in sparse arguments ;-) What we do need is __BIG_ENDIAN__; right now unconditional, when m32r starts using CPU_LITTLE_ENDIAN, we'll need to adjust. Signed-off-by: Al Viro Signed-off-by: Linus Torvalds --- arch/m32r/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/m32r/Makefile b/arch/m32r/Makefile index dd4418d846e9..983d438b14b6 100644 --- a/arch/m32r/Makefile +++ b/arch/m32r/Makefile @@ -24,7 +24,7 @@ aflags-$(CONFIG_ISA_M32R) += -DNO_FPU -Wa,-no-bitinst CFLAGS += $(cflags-y) AFLAGS += $(aflags-y) -CHECKFLAGS := $(CHECK) -D__m32r__ +CHECKFLAGS += -D__m32r__ -D__BIG_ENDIAN__=1 head-y := arch/m32r/kernel/head.o arch/m32r/kernel/init_task.o From a880948b2b88c05af9a471ca5c52883e64d3f7b8 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 26 Sep 2005 06:19:28 +0100 Subject: [PATCH 168/352] [PATCH] m32r: more basic __user annotations Signed-off-by: Al Viro Signed-off-by: Linus Torvalds --- arch/m32r/lib/usercopy.c | 16 ++++++++-------- include/asm-m32r/uaccess.h | 10 ++++++---- 2 files changed, 14 insertions(+), 12 deletions(-) diff --git a/arch/m32r/lib/usercopy.c b/arch/m32r/lib/usercopy.c index 6c6855f1aa05..ce16bbe26a52 100644 --- a/arch/m32r/lib/usercopy.c +++ b/arch/m32r/lib/usercopy.c @@ -13,7 +13,7 @@ #include unsigned long -__generic_copy_to_user(void *to, const void *from, unsigned long n) +__generic_copy_to_user(void __user *to, const void *from, unsigned long n) { prefetch(from); if (access_ok(VERIFY_WRITE, to, n)) @@ -22,7 +22,7 @@ __generic_copy_to_user(void *to, const void *from, unsigned long n) } unsigned long -__generic_copy_from_user(void *to, const void *from, unsigned long n) +__generic_copy_from_user(void *to, const void __user *from, unsigned long n) { prefetchw(to); if (access_ok(VERIFY_READ, from, n)) @@ -111,7 +111,7 @@ do { \ #endif /* CONFIG_ISA_DUAL_ISSUE */ long -__strncpy_from_user(char *dst, const char *src, long count) +__strncpy_from_user(char *dst, const char __user *src, long count) { long res; __do_strncpy_from_user(dst, src, count, res); @@ -119,7 +119,7 @@ __strncpy_from_user(char *dst, const char *src, long count) } long -strncpy_from_user(char *dst, const char *src, long count) +strncpy_from_user(char *dst, const char __user *src, long count) { long res = -EFAULT; if (access_ok(VERIFY_READ, src, 1)) @@ -222,7 +222,7 @@ do { \ #endif /* not CONFIG_ISA_DUAL_ISSUE */ unsigned long -clear_user(void *to, unsigned long n) +clear_user(void __user *to, unsigned long n) { if (access_ok(VERIFY_WRITE, to, n)) __do_clear_user(to, n); @@ -230,7 +230,7 @@ clear_user(void *to, unsigned long n) } unsigned long -__clear_user(void *to, unsigned long n) +__clear_user(void __user *to, unsigned long n) { __do_clear_user(to, n); return n; @@ -244,7 +244,7 @@ __clear_user(void *to, unsigned long n) #ifdef CONFIG_ISA_DUAL_ISSUE -long strnlen_user(const char *s, long n) +long strnlen_user(const char __user *s, long n) { unsigned long mask = -__addr_ok(s); unsigned long res; @@ -313,7 +313,7 @@ long strnlen_user(const char *s, long n) #else /* not CONFIG_ISA_DUAL_ISSUE */ -long strnlen_user(const char *s, long n) +long strnlen_user(const char __user *s, long n) { unsigned long mask = -__addr_ok(s); unsigned long res; diff --git a/include/asm-m32r/uaccess.h b/include/asm-m32r/uaccess.h index 93d863c455a1..0da7c47d2f01 100644 --- a/include/asm-m32r/uaccess.h +++ b/include/asm-m32r/uaccess.h @@ -208,7 +208,8 @@ extern void __get_user_4(void); * On error, the variable @x is set to zero. */ #define get_user(x,ptr) \ -({ int __ret_gu,__val_gu; \ +({ int __ret_gu; \ + unsigned long __val_gu; \ __chk_user_ptr(ptr); \ switch(sizeof (*(ptr))) { \ case 1: __get_user_x(1,__ret_gu,__val_gu,ptr); break; \ @@ -403,7 +404,8 @@ struct __large_struct { unsigned long buf[100]; }; #define __get_user_nocheck(x,ptr,size) \ ({ \ - long __gu_err, __gu_val; \ + long __gu_err; \ + unsigned long __gu_val; \ __get_user_size(__gu_val,(ptr),(size),__gu_err); \ (x) = (__typeof__(*(ptr)))__gu_val; \ __gu_err; \ @@ -594,8 +596,8 @@ static inline unsigned long __generic_copy_to_user_nocheck(void __user *to, return n; } -unsigned long __generic_copy_to_user(void *, const void *, unsigned long); -unsigned long __generic_copy_from_user(void *, const void *, unsigned long); +unsigned long __generic_copy_to_user(void __user *, const void *, unsigned long); +unsigned long __generic_copy_from_user(void *, const void __user *, unsigned long); /** * __copy_to_user: - Copy a block of data into user space, with less checking. From 0b1556945475e8529328edf98ff0d201ed133edb Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 26 Sep 2005 07:49:27 +0100 Subject: [PATCH 169/352] [PATCH] missing dependency on arm O= builds arm maketools needs include/asm-arm in place in the build tree. On normal builds it's always there, of course, but on O= it's created (by generic code) too late - when we get to asm-offset.h. We used to get away with that by accident - creation of include/asm-arm/arch symlink creates include/asm-arm and it happened to go before maketools. However, we did not have such dependency, so that luck didn't last - now maketools is picked first and we are screwed. Both the symlink and maketools are prerequisites of the same target (archprepare). This fix is obvious - make the latter explicitly depend on the former and be done with that. Signed-off-by: Al Viro Signed-off-by: Linus Torvalds --- arch/arm/Makefile | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/Makefile b/arch/arm/Makefile index 130e6228b587..7779f2d1acad 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -175,10 +175,10 @@ else endif @touch $@ -archprepare: maketools include/asm-arm/.arch +archprepare: maketools .PHONY: maketools FORCE -maketools: include/linux/version.h FORCE +maketools: include/linux/version.h include/asm-arm/.arch FORCE $(Q)$(MAKE) $(build)=arch/arm/tools include/asm-arm/mach-types.h # Convert bzImage to zImage From f02b16bea2d8411b21a531fc381e066985895387 Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Mon, 26 Sep 2005 21:12:26 -0700 Subject: [PATCH 170/352] [IB] mthca: Round up number of slots in HCA context memory table When allocating a table for mem-free HCA context, don't assume that obj_size * nobj is an even multiple of MTHCA_TABLE_CHUNK_SIZE. In particular, make sure we allocate at least one slot even if the table is smaller than MTHCA_TABLE_CHUNK_SIZE. Signed-off-by: Michael S. Tsirkin Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mthca/mthca_memfree.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/mthca/mthca_memfree.c b/drivers/infiniband/hw/mthca/mthca_memfree.c index d0c41fe046f0..7bd7a4bec7b4 100644 --- a/drivers/infiniband/hw/mthca/mthca_memfree.c +++ b/drivers/infiniband/hw/mthca/mthca_memfree.c @@ -290,7 +290,7 @@ struct mthca_icm_table *mthca_alloc_icm_table(struct mthca_dev *dev, int i; u8 status; - num_icm = obj_size * nobj / MTHCA_TABLE_CHUNK_SIZE; + num_icm = (obj_size * nobj + MTHCA_TABLE_CHUNK_SIZE - 1) / MTHCA_TABLE_CHUNK_SIZE; table = kmalloc(sizeof *table + num_icm * sizeof *table->icm, GFP_KERNEL); if (!table) From 667347f1ca7e099f6833551f194cf2bcc778871b Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 27 Sep 2005 12:07:44 -0700 Subject: [PATCH 171/352] [NEIGH]: Add debugging check when adding timers. If we double-add a neighbour entry timer, which should be impossible but has been reported, dump the current state of the entry so that we can debug this. Signed-off-by: David S. Miller --- net/core/neighbour.c | 23 ++++++++++++++--------- 1 file changed, 14 insertions(+), 9 deletions(-) diff --git a/net/core/neighbour.c b/net/core/neighbour.c index 5f160082aafc..4128fc76ac3a 100644 --- a/net/core/neighbour.c +++ b/net/core/neighbour.c @@ -727,6 +727,13 @@ static __inline__ int neigh_max_probes(struct neighbour *n) p->ucast_probes + p->app_probes + p->mcast_probes); } +static inline void neigh_add_timer(struct neighbour *n, unsigned long when) +{ + if (unlikely(mod_timer(&n->timer, when))) { + printk("NEIGH: BUG, double timer add, state is %x\n", + n->nud_state); + } +} /* Called when a timer expires for a neighbour entry. */ @@ -811,8 +818,7 @@ static void neigh_timer_handler(unsigned long arg) neigh_hold(neigh); if (time_before(next, jiffies + HZ/2)) next = jiffies + HZ/2; - neigh->timer.expires = next; - add_timer(&neigh->timer); + neigh_add_timer(neigh, next); } if (neigh->nud_state & (NUD_INCOMPLETE | NUD_PROBE)) { struct sk_buff *skb = skb_peek(&neigh->arp_queue); @@ -854,8 +860,7 @@ int __neigh_event_send(struct neighbour *neigh, struct sk_buff *skb) atomic_set(&neigh->probes, neigh->parms->ucast_probes); neigh->nud_state = NUD_INCOMPLETE; neigh_hold(neigh); - neigh->timer.expires = now + 1; - add_timer(&neigh->timer); + neigh_add_timer(neigh, now + 1); } else { neigh->nud_state = NUD_FAILED; write_unlock_bh(&neigh->lock); @@ -868,8 +873,8 @@ int __neigh_event_send(struct neighbour *neigh, struct sk_buff *skb) NEIGH_PRINTK2("neigh %p is delayed.\n", neigh); neigh_hold(neigh); neigh->nud_state = NUD_DELAY; - neigh->timer.expires = jiffies + neigh->parms->delay_probe_time; - add_timer(&neigh->timer); + neigh_add_timer(neigh, + jiffies + neigh->parms->delay_probe_time); } if (neigh->nud_state == NUD_INCOMPLETE) { @@ -1015,10 +1020,10 @@ int neigh_update(struct neighbour *neigh, const u8 *lladdr, u8 new, neigh_del_timer(neigh); if (new & NUD_IN_TIMER) { neigh_hold(neigh); - neigh->timer.expires = jiffies + + neigh_add_timer(neigh, (jiffies + ((new & NUD_REACHABLE) ? - neigh->parms->reachable_time : 0); - add_timer(&neigh->timer); + neigh->parms->reachable_time : + 0))); } neigh->nud_state = new; } From c94e39418ab6eccf863581f4e0d847da0080b2d3 Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Tue, 27 Sep 2005 12:12:42 -0700 Subject: [PATCH 172/352] [TG3]: 5780 PHY fixes Fix 5780 PHY related problems: 1. MAC_RX_MODE reset must be done before setting up the MAC_MODE register on 5705_PLUS chips or the chip will stop receiving after a while. The MAC_RX_MODE reset is needed to prevent intermittently losing the first receive packet on serdes chips. 2. Skip MAC loopback test on 5780 because of hardware errata. Normal traffic including PHY loopback is not affected by the errata. 3. PHY loopback fails intermittently on 5708S and this is fixed by putting the PHY in loopback mode first before programming the MAC mode register. A MAC_RX_MODE reset is also added. 4. Return -EINVAL in tg3_nway_reset() if device is in TBI mode. Allow nway_reset if 5780S is in parallel detect mode. 5. Add missing PHY IDs in KNOWN_PHY_ID() macro. Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/tg3.c | 37 +++++++++++++++++++++++++++++++------ drivers/net/tg3.h | 1 + 2 files changed, 32 insertions(+), 6 deletions(-) diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index 81f4aedf534c..ef2f1fdd6f64 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -5806,6 +5806,13 @@ static int tg3_reset_hw(struct tg3 *tp) } memset(tp->hw_status, 0, TG3_HW_STATUS_SIZE); + if (tp->tg3_flags2 & TG3_FLG2_MII_SERDES) { + tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT; + /* reset to prevent losing 1st rx packet intermittently */ + tw32_f(MAC_RX_MODE, RX_MODE_RESET); + udelay(10); + } + tp->mac_mode = MAC_MODE_TXSTAT_ENABLE | MAC_MODE_RXSTAT_ENABLE | MAC_MODE_TDE_ENABLE | MAC_MODE_RDE_ENABLE | MAC_MODE_FHDE_ENABLE; tw32_f(MAC_MODE, tp->mac_mode | MAC_MODE_RXSTAT_CLEAR | MAC_MODE_TXSTAT_CLEAR); @@ -5937,7 +5944,7 @@ static int tg3_reset_hw(struct tg3 *tp) tw32(MAC_LED_CTRL, tp->led_ctrl); tw32(MAC_MI_STAT, MAC_MI_STAT_LNKSTAT_ATTN_ENAB); - if (tp->tg3_flags2 & TG3_FLG2_ANY_SERDES) { + if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) { tw32_f(MAC_RX_MODE, RX_MODE_RESET); udelay(10); } @@ -7360,12 +7367,17 @@ static int tg3_nway_reset(struct net_device *dev) if (!netif_running(dev)) return -EAGAIN; + if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) + return -EINVAL; + spin_lock_bh(&tp->lock); r = -EINVAL; tg3_readphy(tp, MII_BMCR, &bmcr); if (!tg3_readphy(tp, MII_BMCR, &bmcr) && - (bmcr & BMCR_ANENABLE)) { - tg3_writephy(tp, MII_BMCR, bmcr | BMCR_ANRESTART); + ((bmcr & BMCR_ANENABLE) || + (tp->tg3_flags2 & TG3_FLG2_PARALLEL_DETECT))) { + tg3_writephy(tp, MII_BMCR, bmcr | BMCR_ANRESTART | + BMCR_ANENABLE); r = 0; } spin_unlock_bh(&tp->lock); @@ -7927,19 +7939,32 @@ static int tg3_run_loopback(struct tg3 *tp, int loopback_mode) struct tg3_rx_buffer_desc *desc; if (loopback_mode == TG3_MAC_LOOPBACK) { + /* HW errata - mac loopback fails in some cases on 5780. + * Normal traffic and PHY loopback are not affected by + * errata. + */ + if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780) + return 0; + mac_mode = (tp->mac_mode & ~MAC_MODE_PORT_MODE_MASK) | MAC_MODE_PORT_INT_LPBACK | MAC_MODE_LINK_POLARITY | MAC_MODE_PORT_MODE_GMII; tw32(MAC_MODE, mac_mode); } else if (loopback_mode == TG3_PHY_LOOPBACK) { + tg3_writephy(tp, MII_BMCR, BMCR_LOOPBACK | BMCR_FULLDPLX | + BMCR_SPEED1000); + udelay(40); + /* reset to prevent losing 1st rx packet intermittently */ + if (tp->tg3_flags2 & TG3_FLG2_MII_SERDES) { + tw32_f(MAC_RX_MODE, RX_MODE_RESET); + udelay(10); + tw32_f(MAC_RX_MODE, tp->rx_mode); + } mac_mode = (tp->mac_mode & ~MAC_MODE_PORT_MODE_MASK) | MAC_MODE_LINK_POLARITY | MAC_MODE_PORT_MODE_GMII; if ((tp->phy_id & PHY_ID_MASK) == PHY_ID_BCM5401) mac_mode &= ~MAC_MODE_LINK_POLARITY; tw32(MAC_MODE, mac_mode); - - tg3_writephy(tp, MII_BMCR, BMCR_LOOPBACK | BMCR_FULLDPLX | - BMCR_SPEED1000); } else return -EINVAL; diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h index c184b773e585..2e733c60bfa4 100644 --- a/drivers/net/tg3.h +++ b/drivers/net/tg3.h @@ -2246,6 +2246,7 @@ struct tg3 { (X) == PHY_ID_BCM5411 || (X) == PHY_ID_BCM5701 || \ (X) == PHY_ID_BCM5703 || (X) == PHY_ID_BCM5704 || \ (X) == PHY_ID_BCM5705 || (X) == PHY_ID_BCM5750 || \ + (X) == PHY_ID_BCM5752 || (X) == PHY_ID_BCM5780 || \ (X) == PHY_ID_BCM8002) struct tg3_hw_stats *hw_stats; From f9804ddbeec2ea709255830a8822bfb4e7584f6a Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Tue, 27 Sep 2005 12:13:10 -0700 Subject: [PATCH 173/352] [TG3]: misc. fixes Fix interrupt test handler by adding check for IRQ assertion in PCI_STATE register in addition to the status block updated bit. Add test for valid ethernet address in tg3_set_mac_addr(). Add tg3_bus_string() to setup the PCI bus speed/width string for all PCI/PCIX/PCI Express devices. This is used to print the bus type during init_one(). Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/tg3.c | 53 ++++++++++++++++++++++++++++++++++++++++------- 1 file changed, 46 insertions(+), 7 deletions(-) diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index ef2f1fdd6f64..0ac8db25a657 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -3389,7 +3389,8 @@ static irqreturn_t tg3_test_isr(int irq, void *dev_id, struct tg3 *tp = netdev_priv(dev); struct tg3_hw_status *sblk = tp->hw_status; - if (sblk->status & SD_STATUS_UPDATED) { + if ((sblk->status & SD_STATUS_UPDATED) || + !(tr32(TG3PCI_PCISTATE) & PCISTATE_INT_NOT_ACTIVE)) { tw32_mailbox(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW, 0x00000001); return IRQ_RETVAL(1); @@ -5395,6 +5396,9 @@ static int tg3_set_mac_addr(struct net_device *dev, void *p) struct tg3 *tp = netdev_priv(dev); struct sockaddr *addr = p; + if (!is_valid_ether_addr(addr->sa_data)) + return -EINVAL; + memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); spin_lock_bh(&tp->lock); @@ -10349,6 +10353,44 @@ static char * __devinit tg3_phy_string(struct tg3 *tp) }; } +static char * __devinit tg3_bus_string(struct tg3 *tp, char *str) +{ + if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) { + strcpy(str, "PCI Express"); + return str; + } else if (tp->tg3_flags & TG3_FLAG_PCIX_MODE) { + u32 clock_ctrl = tr32(TG3PCI_CLOCK_CTRL) & 0x1f; + + strcpy(str, "PCIX:"); + + if ((clock_ctrl == 7) || + ((tr32(GRC_MISC_CFG) & GRC_MISC_CFG_BOARD_ID_MASK) == + GRC_MISC_CFG_BOARD_ID_5704CIOBE)) + strcat(str, "133MHz"); + else if (clock_ctrl == 0) + strcat(str, "33MHz"); + else if (clock_ctrl == 2) + strcat(str, "50MHz"); + else if (clock_ctrl == 4) + strcat(str, "66MHz"); + else if (clock_ctrl == 6) + strcat(str, "100MHz"); + else if (clock_ctrl == 7) + strcat(str, "133MHz"); + } else { + strcpy(str, "PCI:"); + if (tp->tg3_flags & TG3_FLAG_PCI_HIGH_SPEED) + strcat(str, "66MHz"); + else + strcat(str, "33MHz"); + } + if (tp->tg3_flags & TG3_FLAG_PCI_32BIT) + strcat(str, ":32-bit"); + else + strcat(str, ":64-bit"); + return str; +} + static struct pci_dev * __devinit tg3_find_5704_peer(struct tg3 *tp) { struct pci_dev *peer; @@ -10411,6 +10453,7 @@ static int __devinit tg3_init_one(struct pci_dev *pdev, struct net_device *dev; struct tg3 *tp; int i, err, pci_using_dac, pm_cap; + char str[40]; if (tg3_version_printed++ == 0) printk(KERN_INFO "%s", version); @@ -10656,16 +10699,12 @@ static int __devinit tg3_init_one(struct pci_dev *pdev, pci_set_drvdata(pdev, dev); - printk(KERN_INFO "%s: Tigon3 [partno(%s) rev %04x PHY(%s)] (PCI%s:%s:%s) %sBaseT Ethernet ", + printk(KERN_INFO "%s: Tigon3 [partno(%s) rev %04x PHY(%s)] (%s) %sBaseT Ethernet ", dev->name, tp->board_part_number, tp->pci_chip_rev_id, tg3_phy_string(tp), - ((tp->tg3_flags & TG3_FLAG_PCIX_MODE) ? "X" : ""), - ((tp->tg3_flags & TG3_FLAG_PCI_HIGH_SPEED) ? - ((tp->tg3_flags & TG3_FLAG_PCIX_MODE) ? "133MHz" : "66MHz") : - ((tp->tg3_flags & TG3_FLAG_PCIX_MODE) ? "100MHz" : "33MHz")), - ((tp->tg3_flags & TG3_FLAG_PCI_32BIT) ? "32-bit" : "64-bit"), + tg3_bus_string(tp, str), (tp->tg3_flags & TG3_FLAG_10_100_ONLY) ? "10/100" : "10/100/1000"); for (i = 0; i < 6; i++) From c8a6c2963982c68475f409aeee21aa80b923cb9c Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 27 Sep 2005 12:13:38 -0700 Subject: [PATCH 174/352] [TG3]: Update driver version and release date. Signed-off-by: David S. Miller --- drivers/net/tg3.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index 0ac8db25a657..25f85fb9df46 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -67,8 +67,8 @@ #define DRV_MODULE_NAME "tg3" #define PFX DRV_MODULE_NAME ": " -#define DRV_MODULE_VERSION "3.40" -#define DRV_MODULE_RELDATE "September 15, 2005" +#define DRV_MODULE_VERSION "3.41" +#define DRV_MODULE_RELDATE "September 27, 2005" #define TG3_DEF_MAC_MODE 0 #define TG3_DEF_RX_MODE 0 From 59175839783287d3b03f18460bb3539c69300837 Mon Sep 17 00:00:00 2001 From: Krzysztof Benedyczak Date: Tue, 27 Sep 2005 22:21:36 +0200 Subject: [PATCH 175/352] [PATCH] Make POSIX message queue sys_mq_open() honor umask We ignored umask when creating new queues via mq_open (when creating with open() on mqueue fs it is ok of course). According to the specification this a bug. This trivial patch fixes this. Signed-off-by: Krzysztof Benedyczak Signed-off-by: Linus Torvalds --- ipc/mqueue.c | 1 + 1 file changed, 1 insertion(+) diff --git a/ipc/mqueue.c b/ipc/mqueue.c index 3a926011507b..a0f18c9cc89d 100644 --- a/ipc/mqueue.c +++ b/ipc/mqueue.c @@ -611,6 +611,7 @@ static struct file *do_create(struct dentry *dir, struct dentry *dentry, dentry->d_fsdata = &attr; } + mode &= ~current->fs->umask; ret = vfs_create(dir->d_inode, dentry, mode, NULL); dentry->d_fsdata = NULL; if (ret) From a1c337afaf4ec4d4eabc75a5e1170d03161de4e1 Mon Sep 17 00:00:00 2001 From: Jack Morgenstein Date: Tue, 27 Sep 2005 13:54:44 -0700 Subject: [PATCH 176/352] [IB] mthca: fix hw_ver value returned from mthca_query_device The IB spec defines the field to be 32 bits, not 16 bits. Signed-off-by: Jack Morgenstein Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mthca/mthca_provider.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c index 1c1c2e230871..3f5319a46577 100644 --- a/drivers/infiniband/hw/mthca/mthca_provider.c +++ b/drivers/infiniband/hw/mthca/mthca_provider.c @@ -84,7 +84,7 @@ static int mthca_query_device(struct ib_device *ibdev, props->vendor_id = be32_to_cpup((__be32 *) (out_mad->data + 36)) & 0xffffff; props->vendor_part_id = be16_to_cpup((__be16 *) (out_mad->data + 30)); - props->hw_ver = be16_to_cpup((__be16 *) (out_mad->data + 32)); + props->hw_ver = be32_to_cpup((__be32 *) (out_mad->data + 32)); memcpy(&props->sys_image_guid, out_mad->data + 4, 8); memcpy(&props->node_guid, out_mad->data + 12, 8); From bc8dfcb93970ad7139c976356bfc99d7e251deaf Mon Sep 17 00:00:00 2001 From: Daniel Phillips Date: Tue, 27 Sep 2005 15:22:35 -0700 Subject: [PATCH 177/352] [NET]: Use non-recursive algorithm in skb_copy_datagram_iovec() Use iteration instead of recursion. Fraglists within fraglists should never occur, so we BUG check this. Signed-off-by: Daniel Phillips Signed-off-by: David S. Miller --- net/core/datagram.c | 81 +++++++++++++++------------------------------ 1 file changed, 26 insertions(+), 55 deletions(-) diff --git a/net/core/datagram.c b/net/core/datagram.c index da9bf71421a7..81987df536eb 100644 --- a/net/core/datagram.c +++ b/net/core/datagram.c @@ -211,74 +211,45 @@ void skb_free_datagram(struct sock *sk, struct sk_buff *skb) int skb_copy_datagram_iovec(const struct sk_buff *skb, int offset, struct iovec *to, int len) { - int start = skb_headlen(skb); - int i, copy = start - offset; + int i, err, fraglen, end = 0; + struct sk_buff *next = skb_shinfo(skb)->frag_list; +next_skb: + fraglen = skb_headlen(skb); + i = -1; - /* Copy header. */ - if (copy > 0) { - if (copy > len) - copy = len; - if (memcpy_toiovec(to, skb->data + offset, copy)) - goto fault; - if ((len -= copy) == 0) - return 0; - offset += copy; - } + while (1) { + int start = end; - /* Copy paged appendix. Hmm... why does this look so complicated? */ - for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { - int end; - - BUG_TRAP(start <= offset + len); - - end = start + skb_shinfo(skb)->frags[i].size; - if ((copy = end - offset) > 0) { - int err; - u8 *vaddr; - skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; - struct page *page = frag->page; + if ((end += fraglen) > offset) { + int copy = end - offset, o = offset - start; if (copy > len) copy = len; - vaddr = kmap(page); - err = memcpy_toiovec(to, vaddr + frag->page_offset + - offset - start, copy); - kunmap(page); + if (i == -1) + err = memcpy_toiovec(to, skb->data + o, copy); + else { + skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; + struct page *page = frag->page; + void *p = kmap(page) + frag->page_offset + o; + err = memcpy_toiovec(to, p, copy); + kunmap(page); + } if (err) goto fault; if (!(len -= copy)) return 0; offset += copy; } - start = end; + if (++i >= skb_shinfo(skb)->nr_frags) + break; + fraglen = skb_shinfo(skb)->frags[i].size; } - - if (skb_shinfo(skb)->frag_list) { - struct sk_buff *list = skb_shinfo(skb)->frag_list; - - for (; list; list = list->next) { - int end; - - BUG_TRAP(start <= offset + len); - - end = start + list->len; - if ((copy = end - offset) > 0) { - if (copy > len) - copy = len; - if (skb_copy_datagram_iovec(list, - offset - start, - to, copy)) - goto fault; - if ((len -= copy) == 0) - return 0; - offset += copy; - } - start = end; - } + if (next) { + skb = next; + BUG_ON(skb_shinfo(skb)->frag_list); + next = skb->next; + goto next_skb; } - if (!len) - return 0; - fault: return -EFAULT; } From 2d7ceece08ad940d0ceac98ab1b5a3b82dfc2a0a Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 27 Sep 2005 15:22:58 -0700 Subject: [PATCH 178/352] [NET]: Prefetch dev->qdisc_lock in dev_queue_xmit() We know the lock is going to be taken. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- net/core/dev.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/core/dev.c b/net/core/dev.c index 37c881070963..9066c874e273 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -1259,6 +1259,8 @@ int dev_queue_xmit(struct sk_buff *skb) if (skb_checksum_help(skb, 0)) goto out_kfree_skb; + spin_lock_prefetch(&dev->queue_lock); + /* Disable soft irqs for various locks below. Also * stops preemption for RCU. */ From 9356b8fc07dc126cd91d2b12f314d760ab48996e Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 27 Sep 2005 15:23:16 -0700 Subject: [PATCH 179/352] [NET]: Reorder some hot fields of struct net_device Place them on separate cache lines in SMP to lower memory bouncing between multiple CPU accessing the device. - One part is mostly used on receive path (including eth_type_trans()) (poll_list, poll, quota, weight, last_rx, dev_addr, broadcast) - One part is mostly used on queue transmit path (qdisc) (queue_lock, qdisc, qdisc_sleeping, qdisc_list, tx_queue_len) - One part is mostly used on xmit path (device) (xmit_lock, xmit_lock_owner, priv, hard_start_xmit, trans_start) 'features' is placed outside of these hot points, in a location that may be shared by all cpus (because mostly read) name_hlist is moved close to name[IFNAMSIZ] to speedup __dev_get_by_name() Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- include/linux/netdevice.h | 89 ++++++++++++++++++++++++--------------- 1 file changed, 55 insertions(+), 34 deletions(-) diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 7c717907896d..368e4c825ff1 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -265,6 +265,8 @@ struct net_device * the interface. */ char name[IFNAMSIZ]; + /* device name hash chain */ + struct hlist_node name_hlist; /* * I/O specific fields @@ -292,6 +294,21 @@ struct net_device /* ------- Fields preinitialized in Space.c finish here ------- */ + /* Net device features */ + unsigned long features; +#define NETIF_F_SG 1 /* Scatter/gather IO. */ +#define NETIF_F_IP_CSUM 2 /* Can checksum only TCP/UDP over IPv4. */ +#define NETIF_F_NO_CSUM 4 /* Does not require checksum. F.e. loopack. */ +#define NETIF_F_HW_CSUM 8 /* Can checksum all the packets. */ +#define NETIF_F_HIGHDMA 32 /* Can DMA to high memory. */ +#define NETIF_F_FRAGLIST 64 /* Scatter/gather IO. */ +#define NETIF_F_HW_VLAN_TX 128 /* Transmit VLAN hw acceleration */ +#define NETIF_F_HW_VLAN_RX 256 /* Receive VLAN hw acceleration */ +#define NETIF_F_HW_VLAN_FILTER 512 /* Receive filtering on VLAN */ +#define NETIF_F_VLAN_CHALLENGED 1024 /* Device cannot handle VLAN packets */ +#define NETIF_F_TSO 2048 /* Can offload TCP/IP segmentation */ +#define NETIF_F_LLTX 4096 /* LockLess TX */ + struct net_device *next_sched; /* Interface index. Unique device identifier */ @@ -316,9 +333,6 @@ struct net_device * will (read: may be cleaned up at will). */ - /* These may be needed for future network-power-down code. */ - unsigned long trans_start; /* Time (in jiffies) of last Tx */ - unsigned long last_rx; /* Time of last Rx */ unsigned short flags; /* interface flags (a la BSD) */ unsigned short gflags; @@ -328,15 +342,12 @@ struct net_device unsigned mtu; /* interface MTU value */ unsigned short type; /* interface hardware type */ unsigned short hard_header_len; /* hardware hdr length */ - void *priv; /* pointer to private data */ struct net_device *master; /* Pointer to master device of a group, * which this device is member of. */ /* Interface address info. */ - unsigned char broadcast[MAX_ADDR_LEN]; /* hw bcast add */ - unsigned char dev_addr[MAX_ADDR_LEN]; /* hw address */ unsigned char perm_addr[MAX_ADDR_LEN]; /* permanent hw address */ unsigned char addr_len; /* hardware address length */ unsigned short dev_id; /* for shared network cards */ @@ -346,8 +357,6 @@ struct net_device int promiscuity; int allmulti; - int watchdog_timeo; - struct timer_list watchdog_timer; /* Protocol specific pointers */ @@ -358,32 +367,62 @@ struct net_device void *ec_ptr; /* Econet specific data */ void *ax25_ptr; /* AX.25 specific data */ - struct list_head poll_list; /* Link to poll list */ +/* + * Cache line mostly used on receive path (including eth_type_trans()) + */ + struct list_head poll_list ____cacheline_aligned_in_smp; + /* Link to poll list */ + + int (*poll) (struct net_device *dev, int *quota); int quota; int weight; + unsigned long last_rx; /* Time of last Rx */ + /* Interface address info used in eth_type_trans() */ + unsigned char dev_addr[MAX_ADDR_LEN]; /* hw address, (before bcast + because most packets are unicast) */ + unsigned char broadcast[MAX_ADDR_LEN]; /* hw bcast add */ + +/* + * Cache line mostly used on queue transmit path (qdisc) + */ + /* device queue lock */ + spinlock_t queue_lock ____cacheline_aligned_in_smp; struct Qdisc *qdisc; struct Qdisc *qdisc_sleeping; - struct Qdisc *qdisc_ingress; struct list_head qdisc_list; unsigned long tx_queue_len; /* Max frames per queue allowed */ /* ingress path synchronizer */ spinlock_t ingress_lock; + struct Qdisc *qdisc_ingress; + +/* + * One part is mostly used on xmit path (device) + */ /* hard_start_xmit synchronizer */ - spinlock_t xmit_lock; + spinlock_t xmit_lock ____cacheline_aligned_in_smp; /* cpu id of processor entered to hard_start_xmit or -1, if nobody entered there. */ int xmit_lock_owner; - /* device queue lock */ - spinlock_t queue_lock; + void *priv; /* pointer to private data */ + int (*hard_start_xmit) (struct sk_buff *skb, + struct net_device *dev); + /* These may be needed for future network-power-down code. */ + unsigned long trans_start; /* Time (in jiffies) of last Tx */ + + int watchdog_timeo; /* used by dev_watchdog() */ + struct timer_list watchdog_timer; + +/* + * refcnt is a very hot point, so align it on SMP + */ /* Number of references to this device */ - atomic_t refcnt; + atomic_t refcnt ____cacheline_aligned_in_smp; + /* delayed register/unregister */ struct list_head todo_list; - /* device name hash chain */ - struct hlist_node name_hlist; /* device index hash chain */ struct hlist_node index_hlist; @@ -396,21 +435,6 @@ struct net_device NETREG_RELEASED, /* called free_netdev */ } reg_state; - /* Net device features */ - unsigned long features; -#define NETIF_F_SG 1 /* Scatter/gather IO. */ -#define NETIF_F_IP_CSUM 2 /* Can checksum only TCP/UDP over IPv4. */ -#define NETIF_F_NO_CSUM 4 /* Does not require checksum. F.e. loopack. */ -#define NETIF_F_HW_CSUM 8 /* Can checksum all the packets. */ -#define NETIF_F_HIGHDMA 32 /* Can DMA to high memory. */ -#define NETIF_F_FRAGLIST 64 /* Scatter/gather IO. */ -#define NETIF_F_HW_VLAN_TX 128 /* Transmit VLAN hw acceleration */ -#define NETIF_F_HW_VLAN_RX 256 /* Receive VLAN hw acceleration */ -#define NETIF_F_HW_VLAN_FILTER 512 /* Receive filtering on VLAN */ -#define NETIF_F_VLAN_CHALLENGED 1024 /* Device cannot handle VLAN packets */ -#define NETIF_F_TSO 2048 /* Can offload TCP/IP segmentation */ -#define NETIF_F_LLTX 4096 /* LockLess TX */ - /* Called after device is detached from network. */ void (*uninit)(struct net_device *dev); /* Called after last user reference disappears. */ @@ -419,10 +443,7 @@ struct net_device /* Pointers to interface service routines. */ int (*open)(struct net_device *dev); int (*stop)(struct net_device *dev); - int (*hard_start_xmit) (struct sk_buff *skb, - struct net_device *dev); #define HAVE_NETDEV_POLL - int (*poll) (struct net_device *dev, int *quota); int (*hard_header) (struct sk_buff *skb, struct net_device *dev, unsigned short type, From a79af59efd20990473d579b1d8d70bb120f0920c Mon Sep 17 00:00:00 2001 From: Frank Filz Date: Tue, 27 Sep 2005 15:23:38 -0700 Subject: [PATCH 180/352] [NET]: Fix module reference counts for loadable protocol modules I have been experimenting with loadable protocol modules, and ran into several issues with module reference counting. The first issue was that __module_get failed at the BUG_ON check at the top of the routine (checking that my module reference count was not zero) when I created the first socket. When sk_alloc() is called, my module reference count was still 0. When I looked at why sctp didn't have this problem, I discovered that sctp creates a control socket during module init (when the module ref count is not 0), which keeps the reference count non-zero. This section has been updated to address the point Stephen raised about checking the return value of try_module_get(). The next problem arose when my socket init routine returned an error. This resulted in my module reference count being decremented below 0. My socket ops->release routine was also being called. The issue here is that sock_release() calls the ops->release routine and decrements the ref count if sock->ops is not NULL. Since the socket probably didn't get correctly initialized, this should not be done, so we will set sock->ops to NULL because we will not call try_module_get(). While searching for another bug, I also noticed that sys_accept() has a possibility of doing a module_put() when it did not do an __module_get so I re-ordered the call to security_socket_accept(). Signed-off-by: Frank Filz Signed-off-by: David S. Miller --- net/core/sock.c | 20 ++++++++++++-------- net/socket.c | 13 ++++++++----- 2 files changed, 20 insertions(+), 13 deletions(-) diff --git a/net/core/sock.c b/net/core/sock.c index ac63b56e23b2..928d2a1d6d8e 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -660,16 +660,20 @@ struct sock *sk_alloc(int family, unsigned int __nocast priority, sock_lock_init(sk); } - if (security_sk_alloc(sk, family, priority)) { - if (slab != NULL) - kmem_cache_free(slab, sk); - else - kfree(sk); - sk = NULL; - } else - __module_get(prot->owner); + if (security_sk_alloc(sk, family, priority)) + goto out_free; + + if (!try_module_get(prot->owner)) + goto out_free; } return sk; + +out_free: + if (slab != NULL) + kmem_cache_free(slab, sk); + else + kfree(sk); + return NULL; } void sk_free(struct sock *sk) diff --git a/net/socket.c b/net/socket.c index dbd1a6851edd..3145103cdf54 100644 --- a/net/socket.c +++ b/net/socket.c @@ -1145,8 +1145,11 @@ static int __sock_create(int family, int type, int protocol, struct socket **res if (!try_module_get(net_families[family]->owner)) goto out_release; - if ((err = net_families[family]->create(sock, protocol)) < 0) + if ((err = net_families[family]->create(sock, protocol)) < 0) { + sock->ops = NULL; goto out_module_put; + } + /* * Now to bump the refcnt of the [loadable] module that owns this * socket at sock_release time we decrement its refcnt. @@ -1360,16 +1363,16 @@ asmlinkage long sys_accept(int fd, struct sockaddr __user *upeer_sockaddr, int _ newsock->type = sock->type; newsock->ops = sock->ops; - err = security_socket_accept(sock, newsock); - if (err) - goto out_release; - /* * We don't need try_module_get here, as the listening socket (sock) * has the protocol module (sock->ops->owner) held. */ __module_get(newsock->ops->owner); + err = security_socket_accept(sock, newsock); + if (err) + goto out_release; + err = sock->ops->accept(sock, newsock, sock->file->f_flags); if (err < 0) goto out_release; From 1f26dac32057baaf67d10b45c6b5277db862911d Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 27 Sep 2005 15:24:13 -0700 Subject: [PATCH 181/352] [NET]: Add Sun Cassini driver. Written by Adrian Sun (asun@darksunrising.com). Ported to 2.6.x by Tom 'spot' Callaway . Further cleaned up and integrated by David S. Miller Signed-off-by: David S. Miller --- drivers/net/Kconfig | 8 + drivers/net/Makefile | 1 + drivers/net/cassini.c | 5311 +++++++++++++++++++++++++++++++++++++++ drivers/net/cassini.h | 4425 ++++++++++++++++++++++++++++++++ include/linux/pci_ids.h | 2 + 5 files changed, 9747 insertions(+) create mode 100644 drivers/net/cassini.c create mode 100644 drivers/net/cassini.h diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index 96f14ab1c1f5..2a908c4690a7 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -548,6 +548,14 @@ config SUNGEM Support for the Sun GEM chip, aka Sun GigabitEthernet/P 2.0. See also . +config CASSINI + tristate "Sun Cassini support" + depends on NET_ETHERNET && PCI + select CRC32 + help + Support for the Sun Cassini chip, aka Sun GigaSwift Ethernet. See also + + config NET_VENDOR_3COM bool "3COM cards" depends on NET_ETHERNET && (ISA || EISA || MCA || PCI) diff --git a/drivers/net/Makefile b/drivers/net/Makefile index 8645c843cf4d..8aeec9f2495b 100644 --- a/drivers/net/Makefile +++ b/drivers/net/Makefile @@ -28,6 +28,7 @@ obj-$(CONFIG_SUNQE) += sunqe.o obj-$(CONFIG_SUNBMAC) += sunbmac.o obj-$(CONFIG_MYRI_SBUS) += myri_sbus.o obj-$(CONFIG_SUNGEM) += sungem.o sungem_phy.o +obj-$(CONFIG_CASSINI) += cassini.o obj-$(CONFIG_MACE) += mace.o obj-$(CONFIG_BMAC) += bmac.o diff --git a/drivers/net/cassini.c b/drivers/net/cassini.c new file mode 100644 index 000000000000..69cb368247e7 --- /dev/null +++ b/drivers/net/cassini.c @@ -0,0 +1,5311 @@ +/* cassini.c: Sun Microsystems Cassini(+) ethernet driver. + * + * Copyright (C) 2004 Sun Microsystems Inc. + * Copyright (C) 2003 Adrian Sun (asun@darksunrising.com) + * + * 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. + * + * This driver uses the sungem driver (c) David Miller + * (davem@redhat.com) as its basis. + * + * The cassini chip has a number of features that distinguish it from + * the gem chip: + * 4 transmit descriptor rings that are used for either QoS (VLAN) or + * load balancing (non-VLAN mode) + * batching of multiple packets + * multiple CPU dispatching + * page-based RX descriptor engine with separate completion rings + * Gigabit support (GMII and PCS interface) + * MIF link up/down detection works + * + * RX is handled by page sized buffers that are attached as fragments to + * the skb. here's what's done: + * -- driver allocates pages at a time and keeps reference counts + * on them. + * -- the upper protocol layers assume that the header is in the skb + * itself. as a result, cassini will copy a small amount (64 bytes) + * to make them happy. + * -- driver appends the rest of the data pages as frags to skbuffs + * and increments the reference count + * -- on page reclamation, the driver swaps the page with a spare page. + * if that page is still in use, it frees its reference to that page, + * and allocates a new page for use. otherwise, it just recycles the + * the page. + * + * NOTE: cassini can parse the header. however, it's not worth it + * as long as the network stack requires a header copy. + * + * TX has 4 queues. currently these queues are used in a round-robin + * fashion for load balancing. They can also be used for QoS. for that + * to work, however, QoS information needs to be exposed down to the driver + * level so that subqueues get targetted to particular transmit rings. + * alternatively, the queues can be configured via use of the all-purpose + * ioctl. + * + * RX DATA: the rx completion ring has all the info, but the rx desc + * ring has all of the data. RX can conceivably come in under multiple + * interrupts, but the INT# assignment needs to be set up properly by + * the BIOS and conveyed to the driver. PCI BIOSes don't know how to do + * that. also, the two descriptor rings are designed to distinguish between + * encrypted and non-encrypted packets, but we use them for buffering + * instead. + * + * by default, the selective clear mask is set up to process rx packets. + */ + +#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 +#include +#include +#include +#include + +#define cas_page_map(x) kmap_atomic((x), KM_SKB_DATA_SOFTIRQ) +#define cas_page_unmap(x) kunmap_atomic((x), KM_SKB_DATA_SOFTIRQ) +#define CAS_NCPUS num_online_cpus() + +#if defined(CONFIG_CASSINI_NAPI) && defined(HAVE_NETDEV_POLL) +#define USE_NAPI +#define cas_skb_release(x) netif_receive_skb(x) +#else +#define cas_skb_release(x) netif_rx(x) +#endif + +/* select which firmware to use */ +#define USE_HP_WORKAROUND +#define HP_WORKAROUND_DEFAULT /* select which firmware to use as default */ +#define CAS_HP_ALT_FIRMWARE cas_prog_null /* alternate firmware */ + +#include "cassini.h" + +#define USE_TX_COMPWB /* use completion writeback registers */ +#define USE_CSMA_CD_PROTO /* standard CSMA/CD */ +#define USE_RX_BLANK /* hw interrupt mitigation */ +#undef USE_ENTROPY_DEV /* don't test for entropy device */ + +/* NOTE: these aren't useable unless PCI interrupts can be assigned. + * also, we need to make cp->lock finer-grained. + */ +#undef USE_PCI_INTB +#undef USE_PCI_INTC +#undef USE_PCI_INTD +#undef USE_QOS + +#undef USE_VPD_DEBUG /* debug vpd information if defined */ + +/* rx processing options */ +#define USE_PAGE_ORDER /* specify to allocate large rx pages */ +#define RX_DONT_BATCH 0 /* if 1, don't batch flows */ +#define RX_COPY_ALWAYS 0 /* if 0, use frags */ +#define RX_COPY_MIN 64 /* copy a little to make upper layers happy */ +#undef RX_COUNT_BUFFERS /* define to calculate RX buffer stats */ + +#define DRV_MODULE_NAME "cassini" +#define PFX DRV_MODULE_NAME ": " +#define DRV_MODULE_VERSION "1.4" +#define DRV_MODULE_RELDATE "1 July 2004" + +#define CAS_DEF_MSG_ENABLE \ + (NETIF_MSG_DRV | \ + NETIF_MSG_PROBE | \ + NETIF_MSG_LINK | \ + NETIF_MSG_TIMER | \ + NETIF_MSG_IFDOWN | \ + NETIF_MSG_IFUP | \ + NETIF_MSG_RX_ERR | \ + NETIF_MSG_TX_ERR) + +/* length of time before we decide the hardware is borked, + * and dev->tx_timeout() should be called to fix the problem + */ +#define CAS_TX_TIMEOUT (HZ) +#define CAS_LINK_TIMEOUT (22*HZ/10) +#define CAS_LINK_FAST_TIMEOUT (1) + +/* timeout values for state changing. these specify the number + * of 10us delays to be used before giving up. + */ +#define STOP_TRIES_PHY 1000 +#define STOP_TRIES 5000 + +/* specify a minimum frame size to deal with some fifo issues + * max mtu == 2 * page size - ethernet header - 64 - swivel = + * 2 * page_size - 0x50 + */ +#define CAS_MIN_FRAME 97 +#define CAS_1000MB_MIN_FRAME 255 +#define CAS_MIN_MTU 60 +#define CAS_MAX_MTU min(((cp->page_size << 1) - 0x50), 9000) + +#if 1 +/* + * Eliminate these and use separate atomic counters for each, to + * avoid a race condition. + */ +#else +#define CAS_RESET_MTU 1 +#define CAS_RESET_ALL 2 +#define CAS_RESET_SPARE 3 +#endif + +static char version[] __devinitdata = + DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n"; + +MODULE_AUTHOR("Adrian Sun (asun@darksunrising.com)"); +MODULE_DESCRIPTION("Sun Cassini(+) ethernet driver"); +MODULE_LICENSE("GPL"); +MODULE_PARM(cassini_debug, "i"); +MODULE_PARM_DESC(cassini_debug, "Cassini bitmapped debugging message enable value"); +MODULE_PARM(link_mode, "i"); +MODULE_PARM_DESC(link_mode, "default link mode"); + +/* + * Work around for a PCS bug in which the link goes down due to the chip + * being confused and never showing a link status of "up." + */ +#define DEFAULT_LINKDOWN_TIMEOUT 5 +/* + * Value in seconds, for user input. + */ +static int linkdown_timeout = DEFAULT_LINKDOWN_TIMEOUT; +MODULE_PARM(linkdown_timeout, "i"); +MODULE_PARM_DESC(linkdown_timeout, +"min reset interval in sec. for PCS linkdown issue; disabled if not positive"); + +/* + * value in 'ticks' (units used by jiffies). Set when we init the + * module because 'HZ' in actually a function call on some flavors of + * Linux. This will default to DEFAULT_LINKDOWN_TIMEOUT * HZ. + */ +static int link_transition_timeout; + + +static int cassini_debug = -1; /* -1 == use CAS_DEF_MSG_ENABLE as value */ +static int link_mode; + +static u16 link_modes[] __devinitdata = { + BMCR_ANENABLE, /* 0 : autoneg */ + 0, /* 1 : 10bt half duplex */ + BMCR_SPEED100, /* 2 : 100bt half duplex */ + BMCR_FULLDPLX, /* 3 : 10bt full duplex */ + BMCR_SPEED100|BMCR_FULLDPLX, /* 4 : 100bt full duplex */ + CAS_BMCR_SPEED1000|BMCR_FULLDPLX /* 5 : 1000bt full duplex */ +}; + +static struct pci_device_id cas_pci_tbl[] __devinitdata = { + { PCI_VENDOR_ID_SUN, PCI_DEVICE_ID_SUN_CASSINI, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, + { PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_SATURN, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, + { 0, } +}; + +MODULE_DEVICE_TABLE(pci, cas_pci_tbl); + +static void cas_set_link_modes(struct cas *cp); + +static inline void cas_lock_tx(struct cas *cp) +{ + int i; + + for (i = 0; i < N_TX_RINGS; i++) + spin_lock(&cp->tx_lock[i]); +} + +static inline void cas_lock_all(struct cas *cp) +{ + spin_lock_irq(&cp->lock); + cas_lock_tx(cp); +} + +/* WTZ: QA was finding deadlock problems with the previous + * versions after long test runs with multiple cards per machine. + * See if replacing cas_lock_all with safer versions helps. The + * symptoms QA is reporting match those we'd expect if interrupts + * aren't being properly restored, and we fixed a previous deadlock + * with similar symptoms by using save/restore versions in other + * places. + */ +#define cas_lock_all_save(cp, flags) \ +do { \ + struct cas *xxxcp = (cp); \ + spin_lock_irqsave(&xxxcp->lock, flags); \ + cas_lock_tx(xxxcp); \ +} while (0) + +static inline void cas_unlock_tx(struct cas *cp) +{ + int i; + + for (i = N_TX_RINGS; i > 0; i--) + spin_unlock(&cp->tx_lock[i - 1]); +} + +static inline void cas_unlock_all(struct cas *cp) +{ + cas_unlock_tx(cp); + spin_unlock_irq(&cp->lock); +} + +#define cas_unlock_all_restore(cp, flags) \ +do { \ + struct cas *xxxcp = (cp); \ + cas_unlock_tx(xxxcp); \ + spin_unlock_irqrestore(&xxxcp->lock, flags); \ +} while (0) + +static void cas_disable_irq(struct cas *cp, const int ring) +{ + /* Make sure we won't get any more interrupts */ + if (ring == 0) { + writel(0xFFFFFFFF, cp->regs + REG_INTR_MASK); + return; + } + + /* disable completion interrupts and selectively mask */ + if (cp->cas_flags & CAS_FLAG_REG_PLUS) { + switch (ring) { +#if defined (USE_PCI_INTB) || defined(USE_PCI_INTC) || defined(USE_PCI_INTD) +#ifdef USE_PCI_INTB + case 1: +#endif +#ifdef USE_PCI_INTC + case 2: +#endif +#ifdef USE_PCI_INTD + case 3: +#endif + writel(INTRN_MASK_CLEAR_ALL | INTRN_MASK_RX_EN, + cp->regs + REG_PLUS_INTRN_MASK(ring)); + break; +#endif + default: + writel(INTRN_MASK_CLEAR_ALL, cp->regs + + REG_PLUS_INTRN_MASK(ring)); + break; + } + } +} + +static inline void cas_mask_intr(struct cas *cp) +{ + int i; + + for (i = 0; i < N_RX_COMP_RINGS; i++) + cas_disable_irq(cp, i); +} + +static void cas_enable_irq(struct cas *cp, const int ring) +{ + if (ring == 0) { /* all but TX_DONE */ + writel(INTR_TX_DONE, cp->regs + REG_INTR_MASK); + return; + } + + if (cp->cas_flags & CAS_FLAG_REG_PLUS) { + switch (ring) { +#if defined (USE_PCI_INTB) || defined(USE_PCI_INTC) || defined(USE_PCI_INTD) +#ifdef USE_PCI_INTB + case 1: +#endif +#ifdef USE_PCI_INTC + case 2: +#endif +#ifdef USE_PCI_INTD + case 3: +#endif + writel(INTRN_MASK_RX_EN, cp->regs + + REG_PLUS_INTRN_MASK(ring)); + break; +#endif + default: + break; + } + } +} + +static inline void cas_unmask_intr(struct cas *cp) +{ + int i; + + for (i = 0; i < N_RX_COMP_RINGS; i++) + cas_enable_irq(cp, i); +} + +static inline void cas_entropy_gather(struct cas *cp) +{ +#ifdef USE_ENTROPY_DEV + if ((cp->cas_flags & CAS_FLAG_ENTROPY_DEV) == 0) + return; + + batch_entropy_store(readl(cp->regs + REG_ENTROPY_IV), + readl(cp->regs + REG_ENTROPY_IV), + sizeof(uint64_t)*8); +#endif +} + +static inline void cas_entropy_reset(struct cas *cp) +{ +#ifdef USE_ENTROPY_DEV + if ((cp->cas_flags & CAS_FLAG_ENTROPY_DEV) == 0) + return; + + writel(BIM_LOCAL_DEV_PAD | BIM_LOCAL_DEV_PROM | BIM_LOCAL_DEV_EXT, + cp->regs + REG_BIM_LOCAL_DEV_EN); + writeb(ENTROPY_RESET_STC_MODE, cp->regs + REG_ENTROPY_RESET); + writeb(0x55, cp->regs + REG_ENTROPY_RAND_REG); + + /* if we read back 0x0, we don't have an entropy device */ + if (readb(cp->regs + REG_ENTROPY_RAND_REG) == 0) + cp->cas_flags &= ~CAS_FLAG_ENTROPY_DEV; +#endif +} + +/* access to the phy. the following assumes that we've initialized the MIF to + * be in frame rather than bit-bang mode + */ +static u16 cas_phy_read(struct cas *cp, int reg) +{ + u32 cmd; + int limit = STOP_TRIES_PHY; + + cmd = MIF_FRAME_ST | MIF_FRAME_OP_READ; + cmd |= CAS_BASE(MIF_FRAME_PHY_ADDR, cp->phy_addr); + cmd |= CAS_BASE(MIF_FRAME_REG_ADDR, reg); + cmd |= MIF_FRAME_TURN_AROUND_MSB; + writel(cmd, cp->regs + REG_MIF_FRAME); + + /* poll for completion */ + while (limit-- > 0) { + udelay(10); + cmd = readl(cp->regs + REG_MIF_FRAME); + if (cmd & MIF_FRAME_TURN_AROUND_LSB) + return (cmd & MIF_FRAME_DATA_MASK); + } + return 0xFFFF; /* -1 */ +} + +static int cas_phy_write(struct cas *cp, int reg, u16 val) +{ + int limit = STOP_TRIES_PHY; + u32 cmd; + + cmd = MIF_FRAME_ST | MIF_FRAME_OP_WRITE; + cmd |= CAS_BASE(MIF_FRAME_PHY_ADDR, cp->phy_addr); + cmd |= CAS_BASE(MIF_FRAME_REG_ADDR, reg); + cmd |= MIF_FRAME_TURN_AROUND_MSB; + cmd |= val & MIF_FRAME_DATA_MASK; + writel(cmd, cp->regs + REG_MIF_FRAME); + + /* poll for completion */ + while (limit-- > 0) { + udelay(10); + cmd = readl(cp->regs + REG_MIF_FRAME); + if (cmd & MIF_FRAME_TURN_AROUND_LSB) + return 0; + } + return -1; +} + +static void cas_phy_powerup(struct cas *cp) +{ + u16 ctl = cas_phy_read(cp, MII_BMCR); + + if ((ctl & BMCR_PDOWN) == 0) + return; + ctl &= ~BMCR_PDOWN; + cas_phy_write(cp, MII_BMCR, ctl); +} + +static void cas_phy_powerdown(struct cas *cp) +{ + u16 ctl = cas_phy_read(cp, MII_BMCR); + + if (ctl & BMCR_PDOWN) + return; + ctl |= BMCR_PDOWN; + cas_phy_write(cp, MII_BMCR, ctl); +} + +/* cp->lock held. note: the last put_page will free the buffer */ +static int cas_page_free(struct cas *cp, cas_page_t *page) +{ + pci_unmap_page(cp->pdev, page->dma_addr, cp->page_size, + PCI_DMA_FROMDEVICE); + __free_pages(page->buffer, cp->page_order); + kfree(page); + return 0; +} + +#ifdef RX_COUNT_BUFFERS +#define RX_USED_ADD(x, y) ((x)->used += (y)) +#define RX_USED_SET(x, y) ((x)->used = (y)) +#else +#define RX_USED_ADD(x, y) +#define RX_USED_SET(x, y) +#endif + +/* local page allocation routines for the receive buffers. jumbo pages + * require at least 8K contiguous and 8K aligned buffers. + */ +static cas_page_t *cas_page_alloc(struct cas *cp, const int flags) +{ + cas_page_t *page; + + page = kmalloc(sizeof(cas_page_t), flags); + if (!page) + return NULL; + + INIT_LIST_HEAD(&page->list); + RX_USED_SET(page, 0); + page->buffer = alloc_pages(flags, cp->page_order); + if (!page->buffer) + goto page_err; + page->dma_addr = pci_map_page(cp->pdev, page->buffer, 0, + cp->page_size, PCI_DMA_FROMDEVICE); + return page; + +page_err: + kfree(page); + return NULL; +} + +/* initialize spare pool of rx buffers, but allocate during the open */ +static void cas_spare_init(struct cas *cp) +{ + spin_lock(&cp->rx_inuse_lock); + INIT_LIST_HEAD(&cp->rx_inuse_list); + spin_unlock(&cp->rx_inuse_lock); + + spin_lock(&cp->rx_spare_lock); + INIT_LIST_HEAD(&cp->rx_spare_list); + cp->rx_spares_needed = RX_SPARE_COUNT; + spin_unlock(&cp->rx_spare_lock); +} + +/* used on close. free all the spare buffers. */ +static void cas_spare_free(struct cas *cp) +{ + struct list_head list, *elem, *tmp; + + /* free spare buffers */ + INIT_LIST_HEAD(&list); + spin_lock(&cp->rx_spare_lock); + list_splice(&cp->rx_spare_list, &list); + INIT_LIST_HEAD(&cp->rx_spare_list); + spin_unlock(&cp->rx_spare_lock); + list_for_each_safe(elem, tmp, &list) { + cas_page_free(cp, list_entry(elem, cas_page_t, list)); + } + + INIT_LIST_HEAD(&list); +#if 1 + /* + * Looks like Adrian had protected this with a different + * lock than used everywhere else to manipulate this list. + */ + spin_lock(&cp->rx_inuse_lock); + list_splice(&cp->rx_inuse_list, &list); + INIT_LIST_HEAD(&cp->rx_inuse_list); + spin_unlock(&cp->rx_inuse_lock); +#else + spin_lock(&cp->rx_spare_lock); + list_splice(&cp->rx_inuse_list, &list); + INIT_LIST_HEAD(&cp->rx_inuse_list); + spin_unlock(&cp->rx_spare_lock); +#endif + list_for_each_safe(elem, tmp, &list) { + cas_page_free(cp, list_entry(elem, cas_page_t, list)); + } +} + +/* replenish spares if needed */ +static void cas_spare_recover(struct cas *cp, const int flags) +{ + struct list_head list, *elem, *tmp; + int needed, i; + + /* check inuse list. if we don't need any more free buffers, + * just free it + */ + + /* make a local copy of the list */ + INIT_LIST_HEAD(&list); + spin_lock(&cp->rx_inuse_lock); + list_splice(&cp->rx_inuse_list, &list); + INIT_LIST_HEAD(&cp->rx_inuse_list); + spin_unlock(&cp->rx_inuse_lock); + + list_for_each_safe(elem, tmp, &list) { + cas_page_t *page = list_entry(elem, cas_page_t, list); + + if (page_count(page->buffer) > 1) + continue; + + list_del(elem); + spin_lock(&cp->rx_spare_lock); + if (cp->rx_spares_needed > 0) { + list_add(elem, &cp->rx_spare_list); + cp->rx_spares_needed--; + spin_unlock(&cp->rx_spare_lock); + } else { + spin_unlock(&cp->rx_spare_lock); + cas_page_free(cp, page); + } + } + + /* put any inuse buffers back on the list */ + if (!list_empty(&list)) { + spin_lock(&cp->rx_inuse_lock); + list_splice(&list, &cp->rx_inuse_list); + spin_unlock(&cp->rx_inuse_lock); + } + + spin_lock(&cp->rx_spare_lock); + needed = cp->rx_spares_needed; + spin_unlock(&cp->rx_spare_lock); + if (!needed) + return; + + /* we still need spares, so try to allocate some */ + INIT_LIST_HEAD(&list); + i = 0; + while (i < needed) { + cas_page_t *spare = cas_page_alloc(cp, flags); + if (!spare) + break; + list_add(&spare->list, &list); + i++; + } + + spin_lock(&cp->rx_spare_lock); + list_splice(&list, &cp->rx_spare_list); + cp->rx_spares_needed -= i; + spin_unlock(&cp->rx_spare_lock); +} + +/* pull a page from the list. */ +static cas_page_t *cas_page_dequeue(struct cas *cp) +{ + struct list_head *entry; + int recover; + + spin_lock(&cp->rx_spare_lock); + if (list_empty(&cp->rx_spare_list)) { + /* try to do a quick recovery */ + spin_unlock(&cp->rx_spare_lock); + cas_spare_recover(cp, GFP_ATOMIC); + spin_lock(&cp->rx_spare_lock); + if (list_empty(&cp->rx_spare_list)) { + if (netif_msg_rx_err(cp)) + printk(KERN_ERR "%s: no spare buffers " + "available.\n", cp->dev->name); + spin_unlock(&cp->rx_spare_lock); + return NULL; + } + } + + entry = cp->rx_spare_list.next; + list_del(entry); + recover = ++cp->rx_spares_needed; + spin_unlock(&cp->rx_spare_lock); + + /* trigger the timer to do the recovery */ + if ((recover & (RX_SPARE_RECOVER_VAL - 1)) == 0) { +#if 1 + atomic_inc(&cp->reset_task_pending); + atomic_inc(&cp->reset_task_pending_spare); + schedule_work(&cp->reset_task); +#else + atomic_set(&cp->reset_task_pending, CAS_RESET_SPARE); + schedule_work(&cp->reset_task); +#endif + } + return list_entry(entry, cas_page_t, list); +} + + +static void cas_mif_poll(struct cas *cp, const int enable) +{ + u32 cfg; + + cfg = readl(cp->regs + REG_MIF_CFG); + cfg &= (MIF_CFG_MDIO_0 | MIF_CFG_MDIO_1); + + if (cp->phy_type & CAS_PHY_MII_MDIO1) + cfg |= MIF_CFG_PHY_SELECT; + + /* poll and interrupt on link status change. */ + if (enable) { + cfg |= MIF_CFG_POLL_EN; + cfg |= CAS_BASE(MIF_CFG_POLL_REG, MII_BMSR); + cfg |= CAS_BASE(MIF_CFG_POLL_PHY, cp->phy_addr); + } + writel((enable) ? ~(BMSR_LSTATUS | BMSR_ANEGCOMPLETE) : 0xFFFF, + cp->regs + REG_MIF_MASK); + writel(cfg, cp->regs + REG_MIF_CFG); +} + +/* Must be invoked under cp->lock */ +static void cas_begin_auto_negotiation(struct cas *cp, struct ethtool_cmd *ep) +{ + u16 ctl; +#if 1 + int lcntl; + int changed = 0; + int oldstate = cp->lstate; + int link_was_not_down = !(oldstate == link_down); +#endif + /* Setup link parameters */ + if (!ep) + goto start_aneg; + lcntl = cp->link_cntl; + if (ep->autoneg == AUTONEG_ENABLE) + cp->link_cntl = BMCR_ANENABLE; + else { + cp->link_cntl = 0; + if (ep->speed == SPEED_100) + cp->link_cntl |= BMCR_SPEED100; + else if (ep->speed == SPEED_1000) + cp->link_cntl |= CAS_BMCR_SPEED1000; + if (ep->duplex == DUPLEX_FULL) + cp->link_cntl |= BMCR_FULLDPLX; + } +#if 1 + changed = (lcntl != cp->link_cntl); +#endif +start_aneg: + if (cp->lstate == link_up) { + printk(KERN_INFO "%s: PCS link down.\n", + cp->dev->name); + } else { + if (changed) { + printk(KERN_INFO "%s: link configuration changed\n", + cp->dev->name); + } + } + cp->lstate = link_down; + cp->link_transition = LINK_TRANSITION_LINK_DOWN; + if (!cp->hw_running) + return; +#if 1 + /* + * WTZ: If the old state was link_up, we turn off the carrier + * to replicate everything we do elsewhere on a link-down + * event when we were already in a link-up state.. + */ + if (oldstate == link_up) + netif_carrier_off(cp->dev); + if (changed && link_was_not_down) { + /* + * WTZ: This branch will simply schedule a full reset after + * we explicitly changed link modes in an ioctl. See if this + * fixes the link-problems we were having for forced mode. + */ + atomic_inc(&cp->reset_task_pending); + atomic_inc(&cp->reset_task_pending_all); + schedule_work(&cp->reset_task); + cp->timer_ticks = 0; + mod_timer(&cp->link_timer, jiffies + CAS_LINK_TIMEOUT); + return; + } +#endif + if (cp->phy_type & CAS_PHY_SERDES) { + u32 val = readl(cp->regs + REG_PCS_MII_CTRL); + + if (cp->link_cntl & BMCR_ANENABLE) { + val |= (PCS_MII_RESTART_AUTONEG | PCS_MII_AUTONEG_EN); + cp->lstate = link_aneg; + } else { + if (cp->link_cntl & BMCR_FULLDPLX) + val |= PCS_MII_CTRL_DUPLEX; + val &= ~PCS_MII_AUTONEG_EN; + cp->lstate = link_force_ok; + } + cp->link_transition = LINK_TRANSITION_LINK_CONFIG; + writel(val, cp->regs + REG_PCS_MII_CTRL); + + } else { + cas_mif_poll(cp, 0); + ctl = cas_phy_read(cp, MII_BMCR); + ctl &= ~(BMCR_FULLDPLX | BMCR_SPEED100 | + CAS_BMCR_SPEED1000 | BMCR_ANENABLE); + ctl |= cp->link_cntl; + if (ctl & BMCR_ANENABLE) { + ctl |= BMCR_ANRESTART; + cp->lstate = link_aneg; + } else { + cp->lstate = link_force_ok; + } + cp->link_transition = LINK_TRANSITION_LINK_CONFIG; + cas_phy_write(cp, MII_BMCR, ctl); + cas_mif_poll(cp, 1); + } + + cp->timer_ticks = 0; + mod_timer(&cp->link_timer, jiffies + CAS_LINK_TIMEOUT); +} + +/* Must be invoked under cp->lock. */ +static int cas_reset_mii_phy(struct cas *cp) +{ + int limit = STOP_TRIES_PHY; + u16 val; + + cas_phy_write(cp, MII_BMCR, BMCR_RESET); + udelay(100); + while (limit--) { + val = cas_phy_read(cp, MII_BMCR); + if ((val & BMCR_RESET) == 0) + break; + udelay(10); + } + return (limit <= 0); +} + +static void cas_saturn_firmware_load(struct cas *cp) +{ + cas_saturn_patch_t *patch = cas_saturn_patch; + + cas_phy_powerdown(cp); + + /* expanded memory access mode */ + cas_phy_write(cp, DP83065_MII_MEM, 0x0); + + /* pointer configuration for new firmware */ + cas_phy_write(cp, DP83065_MII_REGE, 0x8ff9); + cas_phy_write(cp, DP83065_MII_REGD, 0xbd); + cas_phy_write(cp, DP83065_MII_REGE, 0x8ffa); + cas_phy_write(cp, DP83065_MII_REGD, 0x82); + cas_phy_write(cp, DP83065_MII_REGE, 0x8ffb); + cas_phy_write(cp, DP83065_MII_REGD, 0x0); + cas_phy_write(cp, DP83065_MII_REGE, 0x8ffc); + cas_phy_write(cp, DP83065_MII_REGD, 0x39); + + /* download new firmware */ + cas_phy_write(cp, DP83065_MII_MEM, 0x1); + cas_phy_write(cp, DP83065_MII_REGE, patch->addr); + while (patch->addr) { + cas_phy_write(cp, DP83065_MII_REGD, patch->val); + patch++; + } + + /* enable firmware */ + cas_phy_write(cp, DP83065_MII_REGE, 0x8ff8); + cas_phy_write(cp, DP83065_MII_REGD, 0x1); +} + + +/* phy initialization */ +static void cas_phy_init(struct cas *cp) +{ + u16 val; + + /* if we're in MII/GMII mode, set up phy */ + if (CAS_PHY_MII(cp->phy_type)) { + writel(PCS_DATAPATH_MODE_MII, + cp->regs + REG_PCS_DATAPATH_MODE); + + cas_mif_poll(cp, 0); + cas_reset_mii_phy(cp); /* take out of isolate mode */ + + if (PHY_LUCENT_B0 == cp->phy_id) { + /* workaround link up/down issue with lucent */ + cas_phy_write(cp, LUCENT_MII_REG, 0x8000); + cas_phy_write(cp, MII_BMCR, 0x00f1); + cas_phy_write(cp, LUCENT_MII_REG, 0x0); + + } else if (PHY_BROADCOM_B0 == (cp->phy_id & 0xFFFFFFFC)) { + /* workarounds for broadcom phy */ + cas_phy_write(cp, BROADCOM_MII_REG8, 0x0C20); + cas_phy_write(cp, BROADCOM_MII_REG7, 0x0012); + cas_phy_write(cp, BROADCOM_MII_REG5, 0x1804); + cas_phy_write(cp, BROADCOM_MII_REG7, 0x0013); + cas_phy_write(cp, BROADCOM_MII_REG5, 0x1204); + cas_phy_write(cp, BROADCOM_MII_REG7, 0x8006); + cas_phy_write(cp, BROADCOM_MII_REG5, 0x0132); + cas_phy_write(cp, BROADCOM_MII_REG7, 0x8006); + cas_phy_write(cp, BROADCOM_MII_REG5, 0x0232); + cas_phy_write(cp, BROADCOM_MII_REG7, 0x201F); + cas_phy_write(cp, BROADCOM_MII_REG5, 0x0A20); + + } else if (PHY_BROADCOM_5411 == cp->phy_id) { + val = cas_phy_read(cp, BROADCOM_MII_REG4); + val = cas_phy_read(cp, BROADCOM_MII_REG4); + if (val & 0x0080) { + /* link workaround */ + cas_phy_write(cp, BROADCOM_MII_REG4, + val & ~0x0080); + } + + } else if (cp->cas_flags & CAS_FLAG_SATURN) { + writel((cp->phy_type & CAS_PHY_MII_MDIO0) ? + SATURN_PCFG_FSI : 0x0, + cp->regs + REG_SATURN_PCFG); + + /* load firmware to address 10Mbps auto-negotiation + * issue. NOTE: this will need to be changed if the + * default firmware gets fixed. + */ + if (PHY_NS_DP83065 == cp->phy_id) { + cas_saturn_firmware_load(cp); + } + cas_phy_powerup(cp); + } + + /* advertise capabilities */ + val = cas_phy_read(cp, MII_BMCR); + val &= ~BMCR_ANENABLE; + cas_phy_write(cp, MII_BMCR, val); + udelay(10); + + cas_phy_write(cp, MII_ADVERTISE, + cas_phy_read(cp, MII_ADVERTISE) | + (ADVERTISE_10HALF | ADVERTISE_10FULL | + ADVERTISE_100HALF | ADVERTISE_100FULL | + CAS_ADVERTISE_PAUSE | + CAS_ADVERTISE_ASYM_PAUSE)); + + if (cp->cas_flags & CAS_FLAG_1000MB_CAP) { + /* make sure that we don't advertise half + * duplex to avoid a chip issue + */ + val = cas_phy_read(cp, CAS_MII_1000_CTRL); + val &= ~CAS_ADVERTISE_1000HALF; + val |= CAS_ADVERTISE_1000FULL; + cas_phy_write(cp, CAS_MII_1000_CTRL, val); + } + + } else { + /* reset pcs for serdes */ + u32 val; + int limit; + + writel(PCS_DATAPATH_MODE_SERDES, + cp->regs + REG_PCS_DATAPATH_MODE); + + /* enable serdes pins on saturn */ + if (cp->cas_flags & CAS_FLAG_SATURN) + writel(0, cp->regs + REG_SATURN_PCFG); + + /* Reset PCS unit. */ + val = readl(cp->regs + REG_PCS_MII_CTRL); + val |= PCS_MII_RESET; + writel(val, cp->regs + REG_PCS_MII_CTRL); + + limit = STOP_TRIES; + while (limit-- > 0) { + udelay(10); + if ((readl(cp->regs + REG_PCS_MII_CTRL) & + PCS_MII_RESET) == 0) + break; + } + if (limit <= 0) + printk(KERN_WARNING "%s: PCS reset bit would not " + "clear [%08x].\n", cp->dev->name, + readl(cp->regs + REG_PCS_STATE_MACHINE)); + + /* Make sure PCS is disabled while changing advertisement + * configuration. + */ + writel(0x0, cp->regs + REG_PCS_CFG); + + /* Advertise all capabilities except half-duplex. */ + val = readl(cp->regs + REG_PCS_MII_ADVERT); + val &= ~PCS_MII_ADVERT_HD; + val |= (PCS_MII_ADVERT_FD | PCS_MII_ADVERT_SYM_PAUSE | + PCS_MII_ADVERT_ASYM_PAUSE); + writel(val, cp->regs + REG_PCS_MII_ADVERT); + + /* enable PCS */ + writel(PCS_CFG_EN, cp->regs + REG_PCS_CFG); + + /* pcs workaround: enable sync detect */ + writel(PCS_SERDES_CTRL_SYNCD_EN, + cp->regs + REG_PCS_SERDES_CTRL); + } +} + + +static int cas_pcs_link_check(struct cas *cp) +{ + u32 stat, state_machine; + int retval = 0; + + /* The link status bit latches on zero, so you must + * read it twice in such a case to see a transition + * to the link being up. + */ + stat = readl(cp->regs + REG_PCS_MII_STATUS); + if ((stat & PCS_MII_STATUS_LINK_STATUS) == 0) + stat = readl(cp->regs + REG_PCS_MII_STATUS); + + /* The remote-fault indication is only valid + * when autoneg has completed. + */ + if ((stat & (PCS_MII_STATUS_AUTONEG_COMP | + PCS_MII_STATUS_REMOTE_FAULT)) == + (PCS_MII_STATUS_AUTONEG_COMP | PCS_MII_STATUS_REMOTE_FAULT)) { + if (netif_msg_link(cp)) + printk(KERN_INFO "%s: PCS RemoteFault\n", + cp->dev->name); + } + + /* work around link detection issue by querying the PCS state + * machine directly. + */ + state_machine = readl(cp->regs + REG_PCS_STATE_MACHINE); + if ((state_machine & PCS_SM_LINK_STATE_MASK) != SM_LINK_STATE_UP) { + stat &= ~PCS_MII_STATUS_LINK_STATUS; + } else if (state_machine & PCS_SM_WORD_SYNC_STATE_MASK) { + stat |= PCS_MII_STATUS_LINK_STATUS; + } + + if (stat & PCS_MII_STATUS_LINK_STATUS) { + if (cp->lstate != link_up) { + if (cp->opened) { + cp->lstate = link_up; + cp->link_transition = LINK_TRANSITION_LINK_UP; + + cas_set_link_modes(cp); + netif_carrier_on(cp->dev); + } + } + } else if (cp->lstate == link_up) { + cp->lstate = link_down; + if (link_transition_timeout != 0 && + cp->link_transition != LINK_TRANSITION_REQUESTED_RESET && + !cp->link_transition_jiffies_valid) { + /* + * force a reset, as a workaround for the + * link-failure problem. May want to move this to a + * point a bit earlier in the sequence. If we had + * generated a reset a short time ago, we'll wait for + * the link timer to check the status until a + * timer expires (link_transistion_jiffies_valid is + * true when the timer is running.) Instead of using + * a system timer, we just do a check whenever the + * link timer is running - this clears the flag after + * a suitable delay. + */ + retval = 1; + cp->link_transition = LINK_TRANSITION_REQUESTED_RESET; + cp->link_transition_jiffies = jiffies; + cp->link_transition_jiffies_valid = 1; + } else { + cp->link_transition = LINK_TRANSITION_ON_FAILURE; + } + netif_carrier_off(cp->dev); + if (cp->opened && netif_msg_link(cp)) { + printk(KERN_INFO "%s: PCS link down.\n", + cp->dev->name); + } + + /* Cassini only: if you force a mode, there can be + * sync problems on link down. to fix that, the following + * things need to be checked: + * 1) read serialink state register + * 2) read pcs status register to verify link down. + * 3) if link down and serial link == 0x03, then you need + * to global reset the chip. + */ + if ((cp->cas_flags & CAS_FLAG_REG_PLUS) == 0) { + /* should check to see if we're in a forced mode */ + stat = readl(cp->regs + REG_PCS_SERDES_STATE); + if (stat == 0x03) + return 1; + } + } else if (cp->lstate == link_down) { + if (link_transition_timeout != 0 && + cp->link_transition != LINK_TRANSITION_REQUESTED_RESET && + !cp->link_transition_jiffies_valid) { + /* force a reset, as a workaround for the + * link-failure problem. May want to move + * this to a point a bit earlier in the + * sequence. + */ + retval = 1; + cp->link_transition = LINK_TRANSITION_REQUESTED_RESET; + cp->link_transition_jiffies = jiffies; + cp->link_transition_jiffies_valid = 1; + } else { + cp->link_transition = LINK_TRANSITION_STILL_FAILED; + } + } + + return retval; +} + +static int cas_pcs_interrupt(struct net_device *dev, + struct cas *cp, u32 status) +{ + u32 stat = readl(cp->regs + REG_PCS_INTR_STATUS); + + if ((stat & PCS_INTR_STATUS_LINK_CHANGE) == 0) + return 0; + return cas_pcs_link_check(cp); +} + +static int cas_txmac_interrupt(struct net_device *dev, + struct cas *cp, u32 status) +{ + u32 txmac_stat = readl(cp->regs + REG_MAC_TX_STATUS); + + if (!txmac_stat) + return 0; + + if (netif_msg_intr(cp)) + printk(KERN_DEBUG "%s: txmac interrupt, txmac_stat: 0x%x\n", + cp->dev->name, txmac_stat); + + /* Defer timer expiration is quite normal, + * don't even log the event. + */ + if ((txmac_stat & MAC_TX_DEFER_TIMER) && + !(txmac_stat & ~MAC_TX_DEFER_TIMER)) + return 0; + + spin_lock(&cp->stat_lock[0]); + if (txmac_stat & MAC_TX_UNDERRUN) { + printk(KERN_ERR "%s: TX MAC xmit underrun.\n", + dev->name); + cp->net_stats[0].tx_fifo_errors++; + } + + if (txmac_stat & MAC_TX_MAX_PACKET_ERR) { + printk(KERN_ERR "%s: TX MAC max packet size error.\n", + dev->name); + cp->net_stats[0].tx_errors++; + } + + /* The rest are all cases of one of the 16-bit TX + * counters expiring. + */ + if (txmac_stat & MAC_TX_COLL_NORMAL) + cp->net_stats[0].collisions += 0x10000; + + if (txmac_stat & MAC_TX_COLL_EXCESS) { + cp->net_stats[0].tx_aborted_errors += 0x10000; + cp->net_stats[0].collisions += 0x10000; + } + + if (txmac_stat & MAC_TX_COLL_LATE) { + cp->net_stats[0].tx_aborted_errors += 0x10000; + cp->net_stats[0].collisions += 0x10000; + } + spin_unlock(&cp->stat_lock[0]); + + /* We do not keep track of MAC_TX_COLL_FIRST and + * MAC_TX_PEAK_ATTEMPTS events. + */ + return 0; +} + +static void cas_load_firmware(struct cas *cp, cas_hp_inst_t *firmware) +{ + cas_hp_inst_t *inst; + u32 val; + int i; + + i = 0; + while ((inst = firmware) && inst->note) { + writel(i, cp->regs + REG_HP_INSTR_RAM_ADDR); + + val = CAS_BASE(HP_INSTR_RAM_HI_VAL, inst->val); + val |= CAS_BASE(HP_INSTR_RAM_HI_MASK, inst->mask); + writel(val, cp->regs + REG_HP_INSTR_RAM_DATA_HI); + + val = CAS_BASE(HP_INSTR_RAM_MID_OUTARG, inst->outarg >> 10); + val |= CAS_BASE(HP_INSTR_RAM_MID_OUTOP, inst->outop); + val |= CAS_BASE(HP_INSTR_RAM_MID_FNEXT, inst->fnext); + val |= CAS_BASE(HP_INSTR_RAM_MID_FOFF, inst->foff); + val |= CAS_BASE(HP_INSTR_RAM_MID_SNEXT, inst->snext); + val |= CAS_BASE(HP_INSTR_RAM_MID_SOFF, inst->soff); + val |= CAS_BASE(HP_INSTR_RAM_MID_OP, inst->op); + writel(val, cp->regs + REG_HP_INSTR_RAM_DATA_MID); + + val = CAS_BASE(HP_INSTR_RAM_LOW_OUTMASK, inst->outmask); + val |= CAS_BASE(HP_INSTR_RAM_LOW_OUTSHIFT, inst->outshift); + val |= CAS_BASE(HP_INSTR_RAM_LOW_OUTEN, inst->outenab); + val |= CAS_BASE(HP_INSTR_RAM_LOW_OUTARG, inst->outarg); + writel(val, cp->regs + REG_HP_INSTR_RAM_DATA_LOW); + ++firmware; + ++i; + } +} + +static void cas_init_rx_dma(struct cas *cp) +{ + u64 desc_dma = cp->block_dvma; + u32 val; + int i, size; + + /* rx free descriptors */ + val = CAS_BASE(RX_CFG_SWIVEL, RX_SWIVEL_OFF_VAL); + val |= CAS_BASE(RX_CFG_DESC_RING, RX_DESC_RINGN_INDEX(0)); + val |= CAS_BASE(RX_CFG_COMP_RING, RX_COMP_RINGN_INDEX(0)); + if ((N_RX_DESC_RINGS > 1) && + (cp->cas_flags & CAS_FLAG_REG_PLUS)) /* do desc 2 */ + val |= CAS_BASE(RX_CFG_DESC_RING1, RX_DESC_RINGN_INDEX(1)); + writel(val, cp->regs + REG_RX_CFG); + + val = (unsigned long) cp->init_rxds[0] - + (unsigned long) cp->init_block; + writel((desc_dma + val) >> 32, cp->regs + REG_RX_DB_HI); + writel((desc_dma + val) & 0xffffffff, cp->regs + REG_RX_DB_LOW); + writel(RX_DESC_RINGN_SIZE(0) - 4, cp->regs + REG_RX_KICK); + + if (cp->cas_flags & CAS_FLAG_REG_PLUS) { + /* rx desc 2 is for IPSEC packets. however, + * we don't it that for that purpose. + */ + val = (unsigned long) cp->init_rxds[1] - + (unsigned long) cp->init_block; + writel((desc_dma + val) >> 32, cp->regs + REG_PLUS_RX_DB1_HI); + writel((desc_dma + val) & 0xffffffff, cp->regs + + REG_PLUS_RX_DB1_LOW); + writel(RX_DESC_RINGN_SIZE(1) - 4, cp->regs + + REG_PLUS_RX_KICK1); + } + + /* rx completion registers */ + val = (unsigned long) cp->init_rxcs[0] - + (unsigned long) cp->init_block; + writel((desc_dma + val) >> 32, cp->regs + REG_RX_CB_HI); + writel((desc_dma + val) & 0xffffffff, cp->regs + REG_RX_CB_LOW); + + if (cp->cas_flags & CAS_FLAG_REG_PLUS) { + /* rx comp 2-4 */ + for (i = 1; i < MAX_RX_COMP_RINGS; i++) { + val = (unsigned long) cp->init_rxcs[i] - + (unsigned long) cp->init_block; + writel((desc_dma + val) >> 32, cp->regs + + REG_PLUS_RX_CBN_HI(i)); + writel((desc_dma + val) & 0xffffffff, cp->regs + + REG_PLUS_RX_CBN_LOW(i)); + } + } + + /* read selective clear regs to prevent spurious interrupts + * on reset because complete == kick. + * selective clear set up to prevent interrupts on resets + */ + readl(cp->regs + REG_INTR_STATUS_ALIAS); + writel(INTR_RX_DONE | INTR_RX_BUF_UNAVAIL, cp->regs + REG_ALIAS_CLEAR); + if (cp->cas_flags & CAS_FLAG_REG_PLUS) { + for (i = 1; i < N_RX_COMP_RINGS; i++) + readl(cp->regs + REG_PLUS_INTRN_STATUS_ALIAS(i)); + + /* 2 is different from 3 and 4 */ + if (N_RX_COMP_RINGS > 1) + writel(INTR_RX_DONE_ALT | INTR_RX_BUF_UNAVAIL_1, + cp->regs + REG_PLUS_ALIASN_CLEAR(1)); + + for (i = 2; i < N_RX_COMP_RINGS; i++) + writel(INTR_RX_DONE_ALT, + cp->regs + REG_PLUS_ALIASN_CLEAR(i)); + } + + /* set up pause thresholds */ + val = CAS_BASE(RX_PAUSE_THRESH_OFF, + cp->rx_pause_off / RX_PAUSE_THRESH_QUANTUM); + val |= CAS_BASE(RX_PAUSE_THRESH_ON, + cp->rx_pause_on / RX_PAUSE_THRESH_QUANTUM); + writel(val, cp->regs + REG_RX_PAUSE_THRESH); + + /* zero out dma reassembly buffers */ + for (i = 0; i < 64; i++) { + writel(i, cp->regs + REG_RX_TABLE_ADDR); + writel(0x0, cp->regs + REG_RX_TABLE_DATA_LOW); + writel(0x0, cp->regs + REG_RX_TABLE_DATA_MID); + writel(0x0, cp->regs + REG_RX_TABLE_DATA_HI); + } + + /* make sure address register is 0 for normal operation */ + writel(0x0, cp->regs + REG_RX_CTRL_FIFO_ADDR); + writel(0x0, cp->regs + REG_RX_IPP_FIFO_ADDR); + + /* interrupt mitigation */ +#ifdef USE_RX_BLANK + val = CAS_BASE(RX_BLANK_INTR_TIME, RX_BLANK_INTR_TIME_VAL); + val |= CAS_BASE(RX_BLANK_INTR_PKT, RX_BLANK_INTR_PKT_VAL); + writel(val, cp->regs + REG_RX_BLANK); +#else + writel(0x0, cp->regs + REG_RX_BLANK); +#endif + + /* interrupt generation as a function of low water marks for + * free desc and completion entries. these are used to trigger + * housekeeping for rx descs. we don't use the free interrupt + * as it's not very useful + */ + /* val = CAS_BASE(RX_AE_THRESH_FREE, RX_AE_FREEN_VAL(0)); */ + val = CAS_BASE(RX_AE_THRESH_COMP, RX_AE_COMP_VAL); + writel(val, cp->regs + REG_RX_AE_THRESH); + if (cp->cas_flags & CAS_FLAG_REG_PLUS) { + val = CAS_BASE(RX_AE1_THRESH_FREE, RX_AE_FREEN_VAL(1)); + writel(val, cp->regs + REG_PLUS_RX_AE1_THRESH); + } + + /* Random early detect registers. useful for congestion avoidance. + * this should be tunable. + */ + writel(0x0, cp->regs + REG_RX_RED); + + /* receive page sizes. default == 2K (0x800) */ + val = 0; + if (cp->page_size == 0x1000) + val = 0x1; + else if (cp->page_size == 0x2000) + val = 0x2; + else if (cp->page_size == 0x4000) + val = 0x3; + + /* round mtu + offset. constrain to page size. */ + size = cp->dev->mtu + 64; + if (size > cp->page_size) + size = cp->page_size; + + if (size <= 0x400) + i = 0x0; + else if (size <= 0x800) + i = 0x1; + else if (size <= 0x1000) + i = 0x2; + else + i = 0x3; + + cp->mtu_stride = 1 << (i + 10); + val = CAS_BASE(RX_PAGE_SIZE, val); + val |= CAS_BASE(RX_PAGE_SIZE_MTU_STRIDE, i); + val |= CAS_BASE(RX_PAGE_SIZE_MTU_COUNT, cp->page_size >> (i + 10)); + val |= CAS_BASE(RX_PAGE_SIZE_MTU_OFF, 0x1); + writel(val, cp->regs + REG_RX_PAGE_SIZE); + + /* enable the header parser if desired */ + if (CAS_HP_FIRMWARE == cas_prog_null) + return; + + val = CAS_BASE(HP_CFG_NUM_CPU, CAS_NCPUS > 63 ? 0 : CAS_NCPUS); + val |= HP_CFG_PARSE_EN | HP_CFG_SYN_INC_MASK; + val |= CAS_BASE(HP_CFG_TCP_THRESH, HP_TCP_THRESH_VAL); + writel(val, cp->regs + REG_HP_CFG); +} + +static inline void cas_rxc_init(struct cas_rx_comp *rxc) +{ + memset(rxc, 0, sizeof(*rxc)); + rxc->word4 = cpu_to_le64(RX_COMP4_ZERO); +} + +/* NOTE: we use the ENC RX DESC ring for spares. the rx_page[0,1] + * flipping is protected by the fact that the chip will not + * hand back the same page index while it's being processed. + */ +static inline cas_page_t *cas_page_spare(struct cas *cp, const int index) +{ + cas_page_t *page = cp->rx_pages[1][index]; + cas_page_t *new; + + if (page_count(page->buffer) == 1) + return page; + + new = cas_page_dequeue(cp); + if (new) { + spin_lock(&cp->rx_inuse_lock); + list_add(&page->list, &cp->rx_inuse_list); + spin_unlock(&cp->rx_inuse_lock); + } + return new; +} + +/* this needs to be changed if we actually use the ENC RX DESC ring */ +static cas_page_t *cas_page_swap(struct cas *cp, const int ring, + const int index) +{ + cas_page_t **page0 = cp->rx_pages[0]; + cas_page_t **page1 = cp->rx_pages[1]; + + /* swap if buffer is in use */ + if (page_count(page0[index]->buffer) > 1) { + cas_page_t *new = cas_page_spare(cp, index); + if (new) { + page1[index] = page0[index]; + page0[index] = new; + } + } + RX_USED_SET(page0[index], 0); + return page0[index]; +} + +static void cas_clean_rxds(struct cas *cp) +{ + /* only clean ring 0 as ring 1 is used for spare buffers */ + struct cas_rx_desc *rxd = cp->init_rxds[0]; + int i, size; + + /* release all rx flows */ + for (i = 0; i < N_RX_FLOWS; i++) { + struct sk_buff *skb; + while ((skb = __skb_dequeue(&cp->rx_flows[i]))) { + cas_skb_release(skb); + } + } + + /* initialize descriptors */ + size = RX_DESC_RINGN_SIZE(0); + for (i = 0; i < size; i++) { + cas_page_t *page = cas_page_swap(cp, 0, i); + rxd[i].buffer = cpu_to_le64(page->dma_addr); + rxd[i].index = cpu_to_le64(CAS_BASE(RX_INDEX_NUM, i) | + CAS_BASE(RX_INDEX_RING, 0)); + } + + cp->rx_old[0] = RX_DESC_RINGN_SIZE(0) - 4; + cp->rx_last[0] = 0; + cp->cas_flags &= ~CAS_FLAG_RXD_POST(0); +} + +static void cas_clean_rxcs(struct cas *cp) +{ + int i, j; + + /* take ownership of rx comp descriptors */ + memset(cp->rx_cur, 0, sizeof(*cp->rx_cur)*N_RX_COMP_RINGS); + memset(cp->rx_new, 0, sizeof(*cp->rx_new)*N_RX_COMP_RINGS); + for (i = 0; i < N_RX_COMP_RINGS; i++) { + struct cas_rx_comp *rxc = cp->init_rxcs[i]; + for (j = 0; j < RX_COMP_RINGN_SIZE(i); j++) { + cas_rxc_init(rxc + j); + } + } +} + +#if 0 +/* When we get a RX fifo overflow, the RX unit is probably hung + * so we do the following. + * + * If any part of the reset goes wrong, we return 1 and that causes the + * whole chip to be reset. + */ +static int cas_rxmac_reset(struct cas *cp) +{ + struct net_device *dev = cp->dev; + int limit; + u32 val; + + /* First, reset MAC RX. */ + writel(cp->mac_rx_cfg & ~MAC_RX_CFG_EN, cp->regs + REG_MAC_RX_CFG); + for (limit = 0; limit < STOP_TRIES; limit++) { + if (!(readl(cp->regs + REG_MAC_RX_CFG) & MAC_RX_CFG_EN)) + break; + udelay(10); + } + if (limit == STOP_TRIES) { + printk(KERN_ERR "%s: RX MAC will not disable, resetting whole " + "chip.\n", dev->name); + return 1; + } + + /* Second, disable RX DMA. */ + writel(0, cp->regs + REG_RX_CFG); + for (limit = 0; limit < STOP_TRIES; limit++) { + if (!(readl(cp->regs + REG_RX_CFG) & RX_CFG_DMA_EN)) + break; + udelay(10); + } + if (limit == STOP_TRIES) { + printk(KERN_ERR "%s: RX DMA will not disable, resetting whole " + "chip.\n", dev->name); + return 1; + } + + mdelay(5); + + /* Execute RX reset command. */ + writel(SW_RESET_RX, cp->regs + REG_SW_RESET); + for (limit = 0; limit < STOP_TRIES; limit++) { + if (!(readl(cp->regs + REG_SW_RESET) & SW_RESET_RX)) + break; + udelay(10); + } + if (limit == STOP_TRIES) { + printk(KERN_ERR "%s: RX reset command will not execute, " + "resetting whole chip.\n", dev->name); + return 1; + } + + /* reset driver rx state */ + cas_clean_rxds(cp); + cas_clean_rxcs(cp); + + /* Now, reprogram the rest of RX unit. */ + cas_init_rx_dma(cp); + + /* re-enable */ + val = readl(cp->regs + REG_RX_CFG); + writel(val | RX_CFG_DMA_EN, cp->regs + REG_RX_CFG); + writel(MAC_RX_FRAME_RECV, cp->regs + REG_MAC_RX_MASK); + val = readl(cp->regs + REG_MAC_RX_CFG); + writel(val | MAC_RX_CFG_EN, cp->regs + REG_MAC_RX_CFG); + return 0; +} +#endif + +static int cas_rxmac_interrupt(struct net_device *dev, struct cas *cp, + u32 status) +{ + u32 stat = readl(cp->regs + REG_MAC_RX_STATUS); + + if (!stat) + return 0; + + if (netif_msg_intr(cp)) + printk(KERN_DEBUG "%s: rxmac interrupt, stat: 0x%x\n", + cp->dev->name, stat); + + /* these are all rollovers */ + spin_lock(&cp->stat_lock[0]); + if (stat & MAC_RX_ALIGN_ERR) + cp->net_stats[0].rx_frame_errors += 0x10000; + + if (stat & MAC_RX_CRC_ERR) + cp->net_stats[0].rx_crc_errors += 0x10000; + + if (stat & MAC_RX_LEN_ERR) + cp->net_stats[0].rx_length_errors += 0x10000; + + if (stat & MAC_RX_OVERFLOW) { + cp->net_stats[0].rx_over_errors++; + cp->net_stats[0].rx_fifo_errors++; + } + + /* We do not track MAC_RX_FRAME_COUNT and MAC_RX_VIOL_ERR + * events. + */ + spin_unlock(&cp->stat_lock[0]); + return 0; +} + +static int cas_mac_interrupt(struct net_device *dev, struct cas *cp, + u32 status) +{ + u32 stat = readl(cp->regs + REG_MAC_CTRL_STATUS); + + if (!stat) + return 0; + + if (netif_msg_intr(cp)) + printk(KERN_DEBUG "%s: mac interrupt, stat: 0x%x\n", + cp->dev->name, stat); + + /* This interrupt is just for pause frame and pause + * tracking. It is useful for diagnostics and debug + * but probably by default we will mask these events. + */ + if (stat & MAC_CTRL_PAUSE_STATE) + cp->pause_entered++; + + if (stat & MAC_CTRL_PAUSE_RECEIVED) + cp->pause_last_time_recvd = (stat >> 16); + + return 0; +} + + +/* Must be invoked under cp->lock. */ +static inline int cas_mdio_link_not_up(struct cas *cp) +{ + u16 val; + + switch (cp->lstate) { + case link_force_ret: + if (netif_msg_link(cp)) + printk(KERN_INFO "%s: Autoneg failed again, keeping" + " forced mode\n", cp->dev->name); + cas_phy_write(cp, MII_BMCR, cp->link_fcntl); + cp->timer_ticks = 5; + cp->lstate = link_force_ok; + cp->link_transition = LINK_TRANSITION_LINK_CONFIG; + break; + + case link_aneg: + val = cas_phy_read(cp, MII_BMCR); + + /* Try forced modes. we try things in the following order: + * 1000 full -> 100 full/half -> 10 half + */ + val &= ~(BMCR_ANRESTART | BMCR_ANENABLE); + val |= BMCR_FULLDPLX; + val |= (cp->cas_flags & CAS_FLAG_1000MB_CAP) ? + CAS_BMCR_SPEED1000 : BMCR_SPEED100; + cas_phy_write(cp, MII_BMCR, val); + cp->timer_ticks = 5; + cp->lstate = link_force_try; + cp->link_transition = LINK_TRANSITION_LINK_CONFIG; + break; + + case link_force_try: + /* Downgrade from 1000 to 100 to 10 Mbps if necessary. */ + val = cas_phy_read(cp, MII_BMCR); + cp->timer_ticks = 5; + if (val & CAS_BMCR_SPEED1000) { /* gigabit */ + val &= ~CAS_BMCR_SPEED1000; + val |= (BMCR_SPEED100 | BMCR_FULLDPLX); + cas_phy_write(cp, MII_BMCR, val); + break; + } + + if (val & BMCR_SPEED100) { + if (val & BMCR_FULLDPLX) /* fd failed */ + val &= ~BMCR_FULLDPLX; + else { /* 100Mbps failed */ + val &= ~BMCR_SPEED100; + } + cas_phy_write(cp, MII_BMCR, val); + break; + } + default: + break; + } + return 0; +} + + +/* must be invoked with cp->lock held */ +static int cas_mii_link_check(struct cas *cp, const u16 bmsr) +{ + int restart; + + if (bmsr & BMSR_LSTATUS) { + /* Ok, here we got a link. If we had it due to a forced + * fallback, and we were configured for autoneg, we + * retry a short autoneg pass. If you know your hub is + * broken, use ethtool ;) + */ + if ((cp->lstate == link_force_try) && + (cp->link_cntl & BMCR_ANENABLE)) { + cp->lstate = link_force_ret; + cp->link_transition = LINK_TRANSITION_LINK_CONFIG; + cas_mif_poll(cp, 0); + cp->link_fcntl = cas_phy_read(cp, MII_BMCR); + cp->timer_ticks = 5; + if (cp->opened && netif_msg_link(cp)) + printk(KERN_INFO "%s: Got link after fallback, retrying" + " autoneg once...\n", cp->dev->name); + cas_phy_write(cp, MII_BMCR, + cp->link_fcntl | BMCR_ANENABLE | + BMCR_ANRESTART); + cas_mif_poll(cp, 1); + + } else if (cp->lstate != link_up) { + cp->lstate = link_up; + cp->link_transition = LINK_TRANSITION_LINK_UP; + + if (cp->opened) { + cas_set_link_modes(cp); + netif_carrier_on(cp->dev); + } + } + return 0; + } + + /* link not up. if the link was previously up, we restart the + * whole process + */ + restart = 0; + if (cp->lstate == link_up) { + cp->lstate = link_down; + cp->link_transition = LINK_TRANSITION_LINK_DOWN; + + netif_carrier_off(cp->dev); + if (cp->opened && netif_msg_link(cp)) + printk(KERN_INFO "%s: Link down\n", + cp->dev->name); + restart = 1; + + } else if (++cp->timer_ticks > 10) + cas_mdio_link_not_up(cp); + + return restart; +} + +static int cas_mif_interrupt(struct net_device *dev, struct cas *cp, + u32 status) +{ + u32 stat = readl(cp->regs + REG_MIF_STATUS); + u16 bmsr; + + /* check for a link change */ + if (CAS_VAL(MIF_STATUS_POLL_STATUS, stat) == 0) + return 0; + + bmsr = CAS_VAL(MIF_STATUS_POLL_DATA, stat); + return cas_mii_link_check(cp, bmsr); +} + +static int cas_pci_interrupt(struct net_device *dev, struct cas *cp, + u32 status) +{ + u32 stat = readl(cp->regs + REG_PCI_ERR_STATUS); + + if (!stat) + return 0; + + printk(KERN_ERR "%s: PCI error [%04x:%04x] ", dev->name, stat, + readl(cp->regs + REG_BIM_DIAG)); + + /* cassini+ has this reserved */ + if ((stat & PCI_ERR_BADACK) && + ((cp->cas_flags & CAS_FLAG_REG_PLUS) == 0)) + printk(" "); + + if (stat & PCI_ERR_DTRTO) + printk(" "); + if (stat & PCI_ERR_OTHER) + printk(" "); + if (stat & PCI_ERR_BIM_DMA_WRITE) + printk(" "); + if (stat & PCI_ERR_BIM_DMA_READ) + printk(" "); + printk("\n"); + + if (stat & PCI_ERR_OTHER) { + u16 cfg; + + /* Interrogate PCI config space for the + * true cause. + */ + pci_read_config_word(cp->pdev, PCI_STATUS, &cfg); + printk(KERN_ERR "%s: Read PCI cfg space status [%04x]\n", + dev->name, cfg); + if (cfg & PCI_STATUS_PARITY) + printk(KERN_ERR "%s: PCI parity error detected.\n", + dev->name); + if (cfg & PCI_STATUS_SIG_TARGET_ABORT) + printk(KERN_ERR "%s: PCI target abort.\n", + dev->name); + if (cfg & PCI_STATUS_REC_TARGET_ABORT) + printk(KERN_ERR "%s: PCI master acks target abort.\n", + dev->name); + if (cfg & PCI_STATUS_REC_MASTER_ABORT) + printk(KERN_ERR "%s: PCI master abort.\n", dev->name); + if (cfg & PCI_STATUS_SIG_SYSTEM_ERROR) + printk(KERN_ERR "%s: PCI system error SERR#.\n", + dev->name); + if (cfg & PCI_STATUS_DETECTED_PARITY) + printk(KERN_ERR "%s: PCI parity error.\n", + dev->name); + + /* Write the error bits back to clear them. */ + cfg &= (PCI_STATUS_PARITY | + PCI_STATUS_SIG_TARGET_ABORT | + PCI_STATUS_REC_TARGET_ABORT | + PCI_STATUS_REC_MASTER_ABORT | + PCI_STATUS_SIG_SYSTEM_ERROR | + PCI_STATUS_DETECTED_PARITY); + pci_write_config_word(cp->pdev, PCI_STATUS, cfg); + } + + /* For all PCI errors, we should reset the chip. */ + return 1; +} + +/* All non-normal interrupt conditions get serviced here. + * Returns non-zero if we should just exit the interrupt + * handler right now (ie. if we reset the card which invalidates + * all of the other original irq status bits). + */ +static int cas_abnormal_irq(struct net_device *dev, struct cas *cp, + u32 status) +{ + if (status & INTR_RX_TAG_ERROR) { + /* corrupt RX tag framing */ + if (netif_msg_rx_err(cp)) + printk(KERN_DEBUG "%s: corrupt rx tag framing\n", + cp->dev->name); + spin_lock(&cp->stat_lock[0]); + cp->net_stats[0].rx_errors++; + spin_unlock(&cp->stat_lock[0]); + goto do_reset; + } + + if (status & INTR_RX_LEN_MISMATCH) { + /* length mismatch. */ + if (netif_msg_rx_err(cp)) + printk(KERN_DEBUG "%s: length mismatch for rx frame\n", + cp->dev->name); + spin_lock(&cp->stat_lock[0]); + cp->net_stats[0].rx_errors++; + spin_unlock(&cp->stat_lock[0]); + goto do_reset; + } + + if (status & INTR_PCS_STATUS) { + if (cas_pcs_interrupt(dev, cp, status)) + goto do_reset; + } + + if (status & INTR_TX_MAC_STATUS) { + if (cas_txmac_interrupt(dev, cp, status)) + goto do_reset; + } + + if (status & INTR_RX_MAC_STATUS) { + if (cas_rxmac_interrupt(dev, cp, status)) + goto do_reset; + } + + if (status & INTR_MAC_CTRL_STATUS) { + if (cas_mac_interrupt(dev, cp, status)) + goto do_reset; + } + + if (status & INTR_MIF_STATUS) { + if (cas_mif_interrupt(dev, cp, status)) + goto do_reset; + } + + if (status & INTR_PCI_ERROR_STATUS) { + if (cas_pci_interrupt(dev, cp, status)) + goto do_reset; + } + return 0; + +do_reset: +#if 1 + atomic_inc(&cp->reset_task_pending); + atomic_inc(&cp->reset_task_pending_all); + printk(KERN_ERR "%s:reset called in cas_abnormal_irq [0x%x]\n", + dev->name, status); + schedule_work(&cp->reset_task); +#else + atomic_set(&cp->reset_task_pending, CAS_RESET_ALL); + printk(KERN_ERR "reset called in cas_abnormal_irq\n"); + schedule_work(&cp->reset_task); +#endif + return 1; +} + +/* NOTE: CAS_TABORT returns 1 or 2 so that it can be used when + * determining whether to do a netif_stop/wakeup + */ +#define CAS_TABORT(x) (((x)->cas_flags & CAS_FLAG_TARGET_ABORT) ? 2 : 1) +#define CAS_ROUND_PAGE(x) (((x) + PAGE_SIZE - 1) & PAGE_MASK) +static inline int cas_calc_tabort(struct cas *cp, const unsigned long addr, + const int len) +{ + unsigned long off = addr + len; + + if (CAS_TABORT(cp) == 1) + return 0; + if ((CAS_ROUND_PAGE(off) - off) > TX_TARGET_ABORT_LEN) + return 0; + return TX_TARGET_ABORT_LEN; +} + +static inline void cas_tx_ringN(struct cas *cp, int ring, int limit) +{ + struct cas_tx_desc *txds; + struct sk_buff **skbs; + struct net_device *dev = cp->dev; + int entry, count; + + spin_lock(&cp->tx_lock[ring]); + txds = cp->init_txds[ring]; + skbs = cp->tx_skbs[ring]; + entry = cp->tx_old[ring]; + + count = TX_BUFF_COUNT(ring, entry, limit); + while (entry != limit) { + struct sk_buff *skb = skbs[entry]; + dma_addr_t daddr; + u32 dlen; + int frag; + + if (!skb) { + /* this should never occur */ + entry = TX_DESC_NEXT(ring, entry); + continue; + } + + /* however, we might get only a partial skb release. */ + count -= skb_shinfo(skb)->nr_frags + + + cp->tx_tiny_use[ring][entry].nbufs + 1; + if (count < 0) + break; + + if (netif_msg_tx_done(cp)) + printk(KERN_DEBUG "%s: tx[%d] done, slot %d\n", + cp->dev->name, ring, entry); + + skbs[entry] = NULL; + cp->tx_tiny_use[ring][entry].nbufs = 0; + + for (frag = 0; frag <= skb_shinfo(skb)->nr_frags; frag++) { + struct cas_tx_desc *txd = txds + entry; + + daddr = le64_to_cpu(txd->buffer); + dlen = CAS_VAL(TX_DESC_BUFLEN, + le64_to_cpu(txd->control)); + pci_unmap_page(cp->pdev, daddr, dlen, + PCI_DMA_TODEVICE); + entry = TX_DESC_NEXT(ring, entry); + + /* tiny buffer may follow */ + if (cp->tx_tiny_use[ring][entry].used) { + cp->tx_tiny_use[ring][entry].used = 0; + entry = TX_DESC_NEXT(ring, entry); + } + } + + spin_lock(&cp->stat_lock[ring]); + cp->net_stats[ring].tx_packets++; + cp->net_stats[ring].tx_bytes += skb->len; + spin_unlock(&cp->stat_lock[ring]); + dev_kfree_skb_irq(skb); + } + cp->tx_old[ring] = entry; + + /* this is wrong for multiple tx rings. the net device needs + * multiple queues for this to do the right thing. we wait + * for 2*packets to be available when using tiny buffers + */ + if (netif_queue_stopped(dev) && + (TX_BUFFS_AVAIL(cp, ring) > CAS_TABORT(cp)*(MAX_SKB_FRAGS + 1))) + netif_wake_queue(dev); + spin_unlock(&cp->tx_lock[ring]); +} + +static void cas_tx(struct net_device *dev, struct cas *cp, + u32 status) +{ + int limit, ring; +#ifdef USE_TX_COMPWB + u64 compwb = le64_to_cpu(cp->init_block->tx_compwb); +#endif + if (netif_msg_intr(cp)) + printk(KERN_DEBUG "%s: tx interrupt, status: 0x%x, %lx\n", + cp->dev->name, status, compwb); + /* process all the rings */ + for (ring = 0; ring < N_TX_RINGS; ring++) { +#ifdef USE_TX_COMPWB + /* use the completion writeback registers */ + limit = (CAS_VAL(TX_COMPWB_MSB, compwb) << 8) | + CAS_VAL(TX_COMPWB_LSB, compwb); + compwb = TX_COMPWB_NEXT(compwb); +#else + limit = readl(cp->regs + REG_TX_COMPN(ring)); +#endif + if (cp->tx_old[ring] != limit) + cas_tx_ringN(cp, ring, limit); + } +} + + +static int cas_rx_process_pkt(struct cas *cp, struct cas_rx_comp *rxc, + int entry, const u64 *words, + struct sk_buff **skbref) +{ + int dlen, hlen, len, i, alloclen; + int off, swivel = RX_SWIVEL_OFF_VAL; + struct cas_page *page; + struct sk_buff *skb; + void *addr, *crcaddr; + char *p; + + hlen = CAS_VAL(RX_COMP2_HDR_SIZE, words[1]); + dlen = CAS_VAL(RX_COMP1_DATA_SIZE, words[0]); + len = hlen + dlen; + + if (RX_COPY_ALWAYS || (words[2] & RX_COMP3_SMALL_PKT)) + alloclen = len; + else + alloclen = max(hlen, RX_COPY_MIN); + + skb = dev_alloc_skb(alloclen + swivel + cp->crc_size); + if (skb == NULL) + return -1; + + *skbref = skb; + skb->dev = cp->dev; + skb_reserve(skb, swivel); + + p = skb->data; + addr = crcaddr = NULL; + if (hlen) { /* always copy header pages */ + i = CAS_VAL(RX_COMP2_HDR_INDEX, words[1]); + page = cp->rx_pages[CAS_VAL(RX_INDEX_RING, i)][CAS_VAL(RX_INDEX_NUM, i)]; + off = CAS_VAL(RX_COMP2_HDR_OFF, words[1]) * 0x100 + + swivel; + + i = hlen; + if (!dlen) /* attach FCS */ + i += cp->crc_size; + pci_dma_sync_single_for_cpu(cp->pdev, page->dma_addr + off, i, + PCI_DMA_FROMDEVICE); + addr = cas_page_map(page->buffer); + memcpy(p, addr + off, i); + pci_dma_sync_single_for_device(cp->pdev, page->dma_addr + off, i, + PCI_DMA_FROMDEVICE); + cas_page_unmap(addr); + RX_USED_ADD(page, 0x100); + p += hlen; + swivel = 0; + } + + + if (alloclen < (hlen + dlen)) { + skb_frag_t *frag = skb_shinfo(skb)->frags; + + /* normal or jumbo packets. we use frags */ + i = CAS_VAL(RX_COMP1_DATA_INDEX, words[0]); + page = cp->rx_pages[CAS_VAL(RX_INDEX_RING, i)][CAS_VAL(RX_INDEX_NUM, i)]; + off = CAS_VAL(RX_COMP1_DATA_OFF, words[0]) + swivel; + + hlen = min(cp->page_size - off, dlen); + if (hlen < 0) { + if (netif_msg_rx_err(cp)) { + printk(KERN_DEBUG "%s: rx page overflow: " + "%d\n", cp->dev->name, hlen); + } + dev_kfree_skb_irq(skb); + return -1; + } + i = hlen; + if (i == dlen) /* attach FCS */ + i += cp->crc_size; + pci_dma_sync_single_for_cpu(cp->pdev, page->dma_addr + off, i, + PCI_DMA_FROMDEVICE); + + /* make sure we always copy a header */ + swivel = 0; + if (p == (char *) skb->data) { /* not split */ + addr = cas_page_map(page->buffer); + memcpy(p, addr + off, RX_COPY_MIN); + pci_dma_sync_single_for_device(cp->pdev, page->dma_addr + off, i, + PCI_DMA_FROMDEVICE); + cas_page_unmap(addr); + off += RX_COPY_MIN; + swivel = RX_COPY_MIN; + RX_USED_ADD(page, cp->mtu_stride); + } else { + RX_USED_ADD(page, hlen); + } + skb_put(skb, alloclen); + + skb_shinfo(skb)->nr_frags++; + skb->data_len += hlen - swivel; + skb->len += hlen - swivel; + + get_page(page->buffer); + frag->page = page->buffer; + frag->page_offset = off; + frag->size = hlen - swivel; + + /* any more data? */ + if ((words[0] & RX_COMP1_SPLIT_PKT) && ((dlen -= hlen) > 0)) { + hlen = dlen; + off = 0; + + i = CAS_VAL(RX_COMP2_NEXT_INDEX, words[1]); + page = cp->rx_pages[CAS_VAL(RX_INDEX_RING, i)][CAS_VAL(RX_INDEX_NUM, i)]; + pci_dma_sync_single_for_cpu(cp->pdev, page->dma_addr, + hlen + cp->crc_size, + PCI_DMA_FROMDEVICE); + pci_dma_sync_single_for_device(cp->pdev, page->dma_addr, + hlen + cp->crc_size, + PCI_DMA_FROMDEVICE); + + skb_shinfo(skb)->nr_frags++; + skb->data_len += hlen; + skb->len += hlen; + frag++; + + get_page(page->buffer); + frag->page = page->buffer; + frag->page_offset = 0; + frag->size = hlen; + RX_USED_ADD(page, hlen + cp->crc_size); + } + + if (cp->crc_size) { + addr = cas_page_map(page->buffer); + crcaddr = addr + off + hlen; + } + + } else { + /* copying packet */ + if (!dlen) + goto end_copy_pkt; + + i = CAS_VAL(RX_COMP1_DATA_INDEX, words[0]); + page = cp->rx_pages[CAS_VAL(RX_INDEX_RING, i)][CAS_VAL(RX_INDEX_NUM, i)]; + off = CAS_VAL(RX_COMP1_DATA_OFF, words[0]) + swivel; + hlen = min(cp->page_size - off, dlen); + if (hlen < 0) { + if (netif_msg_rx_err(cp)) { + printk(KERN_DEBUG "%s: rx page overflow: " + "%d\n", cp->dev->name, hlen); + } + dev_kfree_skb_irq(skb); + return -1; + } + i = hlen; + if (i == dlen) /* attach FCS */ + i += cp->crc_size; + pci_dma_sync_single_for_cpu(cp->pdev, page->dma_addr + off, i, + PCI_DMA_FROMDEVICE); + addr = cas_page_map(page->buffer); + memcpy(p, addr + off, i); + pci_dma_sync_single_for_device(cp->pdev, page->dma_addr + off, i, + PCI_DMA_FROMDEVICE); + cas_page_unmap(addr); + if (p == (char *) skb->data) /* not split */ + RX_USED_ADD(page, cp->mtu_stride); + else + RX_USED_ADD(page, i); + + /* any more data? */ + if ((words[0] & RX_COMP1_SPLIT_PKT) && ((dlen -= hlen) > 0)) { + p += hlen; + i = CAS_VAL(RX_COMP2_NEXT_INDEX, words[1]); + page = cp->rx_pages[CAS_VAL(RX_INDEX_RING, i)][CAS_VAL(RX_INDEX_NUM, i)]; + pci_dma_sync_single_for_cpu(cp->pdev, page->dma_addr, + dlen + cp->crc_size, + PCI_DMA_FROMDEVICE); + addr = cas_page_map(page->buffer); + memcpy(p, addr, dlen + cp->crc_size); + pci_dma_sync_single_for_device(cp->pdev, page->dma_addr, + dlen + cp->crc_size, + PCI_DMA_FROMDEVICE); + cas_page_unmap(addr); + RX_USED_ADD(page, dlen + cp->crc_size); + } +end_copy_pkt: + if (cp->crc_size) { + addr = NULL; + crcaddr = skb->data + alloclen; + } + skb_put(skb, alloclen); + } + + i = CAS_VAL(RX_COMP4_TCP_CSUM, words[3]); + if (cp->crc_size) { + /* checksum includes FCS. strip it out. */ + i = csum_fold(csum_partial(crcaddr, cp->crc_size, i)); + if (addr) + cas_page_unmap(addr); + } + skb->csum = ntohs(i ^ 0xffff); + skb->ip_summed = CHECKSUM_HW; + skb->protocol = eth_type_trans(skb, cp->dev); + return len; +} + + +/* we can handle up to 64 rx flows at a time. we do the same thing + * as nonreassm except that we batch up the buffers. + * NOTE: we currently just treat each flow as a bunch of packets that + * we pass up. a better way would be to coalesce the packets + * into a jumbo packet. to do that, we need to do the following: + * 1) the first packet will have a clean split between header and + * data. save both. + * 2) each time the next flow packet comes in, extend the + * data length and merge the checksums. + * 3) on flow release, fix up the header. + * 4) make sure the higher layer doesn't care. + * because packets get coalesced, we shouldn't run into fragment count + * issues. + */ +static inline void cas_rx_flow_pkt(struct cas *cp, const u64 *words, + struct sk_buff *skb) +{ + int flowid = CAS_VAL(RX_COMP3_FLOWID, words[2]) & (N_RX_FLOWS - 1); + struct sk_buff_head *flow = &cp->rx_flows[flowid]; + + /* this is protected at a higher layer, so no need to + * do any additional locking here. stick the buffer + * at the end. + */ + __skb_insert(skb, flow->prev, (struct sk_buff *) flow, flow); + if (words[0] & RX_COMP1_RELEASE_FLOW) { + while ((skb = __skb_dequeue(flow))) { + cas_skb_release(skb); + } + } +} + +/* put rx descriptor back on ring. if a buffer is in use by a higher + * layer, this will need to put in a replacement. + */ +static void cas_post_page(struct cas *cp, const int ring, const int index) +{ + cas_page_t *new; + int entry; + + entry = cp->rx_old[ring]; + + new = cas_page_swap(cp, ring, index); + cp->init_rxds[ring][entry].buffer = cpu_to_le64(new->dma_addr); + cp->init_rxds[ring][entry].index = + cpu_to_le64(CAS_BASE(RX_INDEX_NUM, index) | + CAS_BASE(RX_INDEX_RING, ring)); + + entry = RX_DESC_ENTRY(ring, entry + 1); + cp->rx_old[ring] = entry; + + if (entry % 4) + return; + + if (ring == 0) + writel(entry, cp->regs + REG_RX_KICK); + else if ((N_RX_DESC_RINGS > 1) && + (cp->cas_flags & CAS_FLAG_REG_PLUS)) + writel(entry, cp->regs + REG_PLUS_RX_KICK1); +} + + +/* only when things are bad */ +static int cas_post_rxds_ringN(struct cas *cp, int ring, int num) +{ + unsigned int entry, last, count, released; + int cluster; + cas_page_t **page = cp->rx_pages[ring]; + + entry = cp->rx_old[ring]; + + if (netif_msg_intr(cp)) + printk(KERN_DEBUG "%s: rxd[%d] interrupt, done: %d\n", + cp->dev->name, ring, entry); + + cluster = -1; + count = entry & 0x3; + last = RX_DESC_ENTRY(ring, num ? entry + num - 4: entry - 4); + released = 0; + while (entry != last) { + /* make a new buffer if it's still in use */ + if (page_count(page[entry]->buffer) > 1) { + cas_page_t *new = cas_page_dequeue(cp); + if (!new) { + /* let the timer know that we need to + * do this again + */ + cp->cas_flags |= CAS_FLAG_RXD_POST(ring); + if (!timer_pending(&cp->link_timer)) + mod_timer(&cp->link_timer, jiffies + + CAS_LINK_FAST_TIMEOUT); + cp->rx_old[ring] = entry; + cp->rx_last[ring] = num ? num - released : 0; + return -ENOMEM; + } + spin_lock(&cp->rx_inuse_lock); + list_add(&page[entry]->list, &cp->rx_inuse_list); + spin_unlock(&cp->rx_inuse_lock); + cp->init_rxds[ring][entry].buffer = + cpu_to_le64(new->dma_addr); + page[entry] = new; + + } + + if (++count == 4) { + cluster = entry; + count = 0; + } + released++; + entry = RX_DESC_ENTRY(ring, entry + 1); + } + cp->rx_old[ring] = entry; + + if (cluster < 0) + return 0; + + if (ring == 0) + writel(cluster, cp->regs + REG_RX_KICK); + else if ((N_RX_DESC_RINGS > 1) && + (cp->cas_flags & CAS_FLAG_REG_PLUS)) + writel(cluster, cp->regs + REG_PLUS_RX_KICK1); + return 0; +} + + +/* process a completion ring. packets are set up in three basic ways: + * small packets: should be copied header + data in single buffer. + * large packets: header and data in a single buffer. + * split packets: header in a separate buffer from data. + * data may be in multiple pages. data may be > 256 + * bytes but in a single page. + * + * NOTE: RX page posting is done in this routine as well. while there's + * the capability of using multiple RX completion rings, it isn't + * really worthwhile due to the fact that the page posting will + * force serialization on the single descriptor ring. + */ +static int cas_rx_ringN(struct cas *cp, int ring, int budget) +{ + struct cas_rx_comp *rxcs = cp->init_rxcs[ring]; + int entry, drops; + int npackets = 0; + + if (netif_msg_intr(cp)) + printk(KERN_DEBUG "%s: rx[%d] interrupt, done: %d/%d\n", + cp->dev->name, ring, + readl(cp->regs + REG_RX_COMP_HEAD), + cp->rx_new[ring]); + + entry = cp->rx_new[ring]; + drops = 0; + while (1) { + struct cas_rx_comp *rxc = rxcs + entry; + struct sk_buff *skb; + int type, len; + u64 words[4]; + int i, dring; + + words[0] = le64_to_cpu(rxc->word1); + words[1] = le64_to_cpu(rxc->word2); + words[2] = le64_to_cpu(rxc->word3); + words[3] = le64_to_cpu(rxc->word4); + + /* don't touch if still owned by hw */ + type = CAS_VAL(RX_COMP1_TYPE, words[0]); + if (type == 0) + break; + + /* hw hasn't cleared the zero bit yet */ + if (words[3] & RX_COMP4_ZERO) { + break; + } + + /* get info on the packet */ + if (words[3] & (RX_COMP4_LEN_MISMATCH | RX_COMP4_BAD)) { + spin_lock(&cp->stat_lock[ring]); + cp->net_stats[ring].rx_errors++; + if (words[3] & RX_COMP4_LEN_MISMATCH) + cp->net_stats[ring].rx_length_errors++; + if (words[3] & RX_COMP4_BAD) + cp->net_stats[ring].rx_crc_errors++; + spin_unlock(&cp->stat_lock[ring]); + + /* We'll just return it to Cassini. */ + drop_it: + spin_lock(&cp->stat_lock[ring]); + ++cp->net_stats[ring].rx_dropped; + spin_unlock(&cp->stat_lock[ring]); + goto next; + } + + len = cas_rx_process_pkt(cp, rxc, entry, words, &skb); + if (len < 0) { + ++drops; + goto drop_it; + } + + /* see if it's a flow re-assembly or not. the driver + * itself handles release back up. + */ + if (RX_DONT_BATCH || (type == 0x2)) { + /* non-reassm: these always get released */ + cas_skb_release(skb); + } else { + cas_rx_flow_pkt(cp, words, skb); + } + + spin_lock(&cp->stat_lock[ring]); + cp->net_stats[ring].rx_packets++; + cp->net_stats[ring].rx_bytes += len; + spin_unlock(&cp->stat_lock[ring]); + cp->dev->last_rx = jiffies; + + next: + npackets++; + + /* should it be released? */ + if (words[0] & RX_COMP1_RELEASE_HDR) { + i = CAS_VAL(RX_COMP2_HDR_INDEX, words[1]); + dring = CAS_VAL(RX_INDEX_RING, i); + i = CAS_VAL(RX_INDEX_NUM, i); + cas_post_page(cp, dring, i); + } + + if (words[0] & RX_COMP1_RELEASE_DATA) { + i = CAS_VAL(RX_COMP1_DATA_INDEX, words[0]); + dring = CAS_VAL(RX_INDEX_RING, i); + i = CAS_VAL(RX_INDEX_NUM, i); + cas_post_page(cp, dring, i); + } + + if (words[0] & RX_COMP1_RELEASE_NEXT) { + i = CAS_VAL(RX_COMP2_NEXT_INDEX, words[1]); + dring = CAS_VAL(RX_INDEX_RING, i); + i = CAS_VAL(RX_INDEX_NUM, i); + cas_post_page(cp, dring, i); + } + + /* skip to the next entry */ + entry = RX_COMP_ENTRY(ring, entry + 1 + + CAS_VAL(RX_COMP1_SKIP, words[0])); +#ifdef USE_NAPI + if (budget && (npackets >= budget)) + break; +#endif + } + cp->rx_new[ring] = entry; + + if (drops) + printk(KERN_INFO "%s: Memory squeeze, deferring packet.\n", + cp->dev->name); + return npackets; +} + + +/* put completion entries back on the ring */ +static void cas_post_rxcs_ringN(struct net_device *dev, + struct cas *cp, int ring) +{ + struct cas_rx_comp *rxc = cp->init_rxcs[ring]; + int last, entry; + + last = cp->rx_cur[ring]; + entry = cp->rx_new[ring]; + if (netif_msg_intr(cp)) + printk(KERN_DEBUG "%s: rxc[%d] interrupt, done: %d/%d\n", + dev->name, ring, readl(cp->regs + REG_RX_COMP_HEAD), + entry); + + /* zero and re-mark descriptors */ + while (last != entry) { + cas_rxc_init(rxc + last); + last = RX_COMP_ENTRY(ring, last + 1); + } + cp->rx_cur[ring] = last; + + if (ring == 0) + writel(last, cp->regs + REG_RX_COMP_TAIL); + else if (cp->cas_flags & CAS_FLAG_REG_PLUS) + writel(last, cp->regs + REG_PLUS_RX_COMPN_TAIL(ring)); +} + + + +/* cassini can use all four PCI interrupts for the completion ring. + * rings 3 and 4 are identical + */ +#if defined(USE_PCI_INTC) || defined(USE_PCI_INTD) +static inline void cas_handle_irqN(struct net_device *dev, + struct cas *cp, const u32 status, + const int ring) +{ + if (status & (INTR_RX_COMP_FULL_ALT | INTR_RX_COMP_AF_ALT)) + cas_post_rxcs_ringN(dev, cp, ring); +} + +static irqreturn_t cas_interruptN(int irq, void *dev_id, struct pt_regs *regs) +{ + struct net_device *dev = dev_id; + struct cas *cp = netdev_priv(dev); + unsigned long flags; + int ring; + u32 status = readl(cp->regs + REG_PLUS_INTRN_STATUS(ring)); + + /* check for shared irq */ + if (status == 0) + return IRQ_NONE; + + ring = (irq == cp->pci_irq_INTC) ? 2 : 3; + spin_lock_irqsave(&cp->lock, flags); + if (status & INTR_RX_DONE_ALT) { /* handle rx separately */ +#ifdef USE_NAPI + cas_mask_intr(cp); + netif_rx_schedule(dev); +#else + cas_rx_ringN(cp, ring, 0); +#endif + status &= ~INTR_RX_DONE_ALT; + } + + if (status) + cas_handle_irqN(dev, cp, status, ring); + spin_unlock_irqrestore(&cp->lock, flags); + return IRQ_HANDLED; +} +#endif + +#ifdef USE_PCI_INTB +/* everything but rx packets */ +static inline void cas_handle_irq1(struct cas *cp, const u32 status) +{ + if (status & INTR_RX_BUF_UNAVAIL_1) { + /* Frame arrived, no free RX buffers available. + * NOTE: we can get this on a link transition. */ + cas_post_rxds_ringN(cp, 1, 0); + spin_lock(&cp->stat_lock[1]); + cp->net_stats[1].rx_dropped++; + spin_unlock(&cp->stat_lock[1]); + } + + if (status & INTR_RX_BUF_AE_1) + cas_post_rxds_ringN(cp, 1, RX_DESC_RINGN_SIZE(1) - + RX_AE_FREEN_VAL(1)); + + if (status & (INTR_RX_COMP_AF | INTR_RX_COMP_FULL)) + cas_post_rxcs_ringN(cp, 1); +} + +/* ring 2 handles a few more events than 3 and 4 */ +static irqreturn_t cas_interrupt1(int irq, void *dev_id, struct pt_regs *regs) +{ + struct net_device *dev = dev_id; + struct cas *cp = netdev_priv(dev); + unsigned long flags; + u32 status = readl(cp->regs + REG_PLUS_INTRN_STATUS(1)); + + /* check for shared interrupt */ + if (status == 0) + return IRQ_NONE; + + spin_lock_irqsave(&cp->lock, flags); + if (status & INTR_RX_DONE_ALT) { /* handle rx separately */ +#ifdef USE_NAPI + cas_mask_intr(cp); + netif_rx_schedule(dev); +#else + cas_rx_ringN(cp, 1, 0); +#endif + status &= ~INTR_RX_DONE_ALT; + } + if (status) + cas_handle_irq1(cp, status); + spin_unlock_irqrestore(&cp->lock, flags); + return IRQ_HANDLED; +} +#endif + +static inline void cas_handle_irq(struct net_device *dev, + struct cas *cp, const u32 status) +{ + /* housekeeping interrupts */ + if (status & INTR_ERROR_MASK) + cas_abnormal_irq(dev, cp, status); + + if (status & INTR_RX_BUF_UNAVAIL) { + /* Frame arrived, no free RX buffers available. + * NOTE: we can get this on a link transition. + */ + cas_post_rxds_ringN(cp, 0, 0); + spin_lock(&cp->stat_lock[0]); + cp->net_stats[0].rx_dropped++; + spin_unlock(&cp->stat_lock[0]); + } else if (status & INTR_RX_BUF_AE) { + cas_post_rxds_ringN(cp, 0, RX_DESC_RINGN_SIZE(0) - + RX_AE_FREEN_VAL(0)); + } + + if (status & (INTR_RX_COMP_AF | INTR_RX_COMP_FULL)) + cas_post_rxcs_ringN(dev, cp, 0); +} + +static irqreturn_t cas_interrupt(int irq, void *dev_id, struct pt_regs *regs) +{ + struct net_device *dev = dev_id; + struct cas *cp = netdev_priv(dev); + unsigned long flags; + u32 status = readl(cp->regs + REG_INTR_STATUS); + + if (status == 0) + return IRQ_NONE; + + spin_lock_irqsave(&cp->lock, flags); + if (status & (INTR_TX_ALL | INTR_TX_INTME)) { + cas_tx(dev, cp, status); + status &= ~(INTR_TX_ALL | INTR_TX_INTME); + } + + if (status & INTR_RX_DONE) { +#ifdef USE_NAPI + cas_mask_intr(cp); + netif_rx_schedule(dev); +#else + cas_rx_ringN(cp, 0, 0); +#endif + status &= ~INTR_RX_DONE; + } + + if (status) + cas_handle_irq(dev, cp, status); + spin_unlock_irqrestore(&cp->lock, flags); + return IRQ_HANDLED; +} + + +#ifdef USE_NAPI +static int cas_poll(struct net_device *dev, int *budget) +{ + struct cas *cp = netdev_priv(dev); + int i, enable_intr, todo, credits; + u32 status = readl(cp->regs + REG_INTR_STATUS); + unsigned long flags; + + spin_lock_irqsave(&cp->lock, flags); + cas_tx(dev, cp, status); + spin_unlock_irqrestore(&cp->lock, flags); + + /* NAPI rx packets. we spread the credits across all of the + * rxc rings + */ + todo = min(*budget, dev->quota); + + /* to make sure we're fair with the work we loop through each + * ring N_RX_COMP_RING times with a request of + * todo / N_RX_COMP_RINGS + */ + enable_intr = 1; + credits = 0; + for (i = 0; i < N_RX_COMP_RINGS; i++) { + int j; + for (j = 0; j < N_RX_COMP_RINGS; j++) { + credits += cas_rx_ringN(cp, j, todo / N_RX_COMP_RINGS); + if (credits >= todo) { + enable_intr = 0; + goto rx_comp; + } + } + } + +rx_comp: + *budget -= credits; + dev->quota -= credits; + + /* final rx completion */ + spin_lock_irqsave(&cp->lock, flags); + if (status) + cas_handle_irq(dev, cp, status); + +#ifdef USE_PCI_INTB + if (N_RX_COMP_RINGS > 1) { + status = readl(cp->regs + REG_PLUS_INTRN_STATUS(1)); + if (status) + cas_handle_irq1(dev, cp, status); + } +#endif + +#ifdef USE_PCI_INTC + if (N_RX_COMP_RINGS > 2) { + status = readl(cp->regs + REG_PLUS_INTRN_STATUS(2)); + if (status) + cas_handle_irqN(dev, cp, status, 2); + } +#endif + +#ifdef USE_PCI_INTD + if (N_RX_COMP_RINGS > 3) { + status = readl(cp->regs + REG_PLUS_INTRN_STATUS(3)); + if (status) + cas_handle_irqN(dev, cp, status, 3); + } +#endif + spin_unlock_irqrestore(&cp->lock, flags); + if (enable_intr) { + netif_rx_complete(dev); + cas_unmask_intr(cp); + return 0; + } + return 1; +} +#endif + +#ifdef CONFIG_NET_POLL_CONTROLLER +static void cas_netpoll(struct net_device *dev) +{ + struct cas *cp = netdev_priv(dev); + + cas_disable_irq(cp, 0); + cas_interrupt(cp->pdev->irq, dev, NULL); + cas_enable_irq(cp, 0); + +#ifdef USE_PCI_INTB + if (N_RX_COMP_RINGS > 1) { + /* cas_interrupt1(); */ + } +#endif +#ifdef USE_PCI_INTC + if (N_RX_COMP_RINGS > 2) { + /* cas_interruptN(); */ + } +#endif +#ifdef USE_PCI_INTD + if (N_RX_COMP_RINGS > 3) { + /* cas_interruptN(); */ + } +#endif +} +#endif + +static void cas_tx_timeout(struct net_device *dev) +{ + struct cas *cp = netdev_priv(dev); + + printk(KERN_ERR "%s: transmit timed out, resetting\n", dev->name); + if (!cp->hw_running) { + printk("%s: hrm.. hw not running!\n", dev->name); + return; + } + + printk(KERN_ERR "%s: MIF_STATE[%08x]\n", + dev->name, readl(cp->regs + REG_MIF_STATE_MACHINE)); + + printk(KERN_ERR "%s: MAC_STATE[%08x]\n", + dev->name, readl(cp->regs + REG_MAC_STATE_MACHINE)); + + printk(KERN_ERR "%s: TX_STATE[%08x:%08x:%08x] " + "FIFO[%08x:%08x:%08x] SM1[%08x] SM2[%08x]\n", + dev->name, + readl(cp->regs + REG_TX_CFG), + readl(cp->regs + REG_MAC_TX_STATUS), + readl(cp->regs + REG_MAC_TX_CFG), + readl(cp->regs + REG_TX_FIFO_PKT_CNT), + readl(cp->regs + REG_TX_FIFO_WRITE_PTR), + readl(cp->regs + REG_TX_FIFO_READ_PTR), + readl(cp->regs + REG_TX_SM_1), + readl(cp->regs + REG_TX_SM_2)); + + printk(KERN_ERR "%s: RX_STATE[%08x:%08x:%08x]\n", + dev->name, + readl(cp->regs + REG_RX_CFG), + readl(cp->regs + REG_MAC_RX_STATUS), + readl(cp->regs + REG_MAC_RX_CFG)); + + printk(KERN_ERR "%s: HP_STATE[%08x:%08x:%08x:%08x]\n", + dev->name, + readl(cp->regs + REG_HP_STATE_MACHINE), + readl(cp->regs + REG_HP_STATUS0), + readl(cp->regs + REG_HP_STATUS1), + readl(cp->regs + REG_HP_STATUS2)); + +#if 1 + atomic_inc(&cp->reset_task_pending); + atomic_inc(&cp->reset_task_pending_all); + schedule_work(&cp->reset_task); +#else + atomic_set(&cp->reset_task_pending, CAS_RESET_ALL); + schedule_work(&cp->reset_task); +#endif +} + +static inline int cas_intme(int ring, int entry) +{ + /* Algorithm: IRQ every 1/2 of descriptors. */ + if (!(entry & ((TX_DESC_RINGN_SIZE(ring) >> 1) - 1))) + return 1; + return 0; +} + + +static void cas_write_txd(struct cas *cp, int ring, int entry, + dma_addr_t mapping, int len, u64 ctrl, int last) +{ + struct cas_tx_desc *txd = cp->init_txds[ring] + entry; + + ctrl |= CAS_BASE(TX_DESC_BUFLEN, len); + if (cas_intme(ring, entry)) + ctrl |= TX_DESC_INTME; + if (last) + ctrl |= TX_DESC_EOF; + txd->control = cpu_to_le64(ctrl); + txd->buffer = cpu_to_le64(mapping); +} + +static inline void *tx_tiny_buf(struct cas *cp, const int ring, + const int entry) +{ + return cp->tx_tiny_bufs[ring] + TX_TINY_BUF_LEN*entry; +} + +static inline dma_addr_t tx_tiny_map(struct cas *cp, const int ring, + const int entry, const int tentry) +{ + cp->tx_tiny_use[ring][tentry].nbufs++; + cp->tx_tiny_use[ring][entry].used = 1; + return cp->tx_tiny_dvma[ring] + TX_TINY_BUF_LEN*entry; +} + +static inline int cas_xmit_tx_ringN(struct cas *cp, int ring, + struct sk_buff *skb) +{ + struct net_device *dev = cp->dev; + int entry, nr_frags, frag, tabort, tentry; + dma_addr_t mapping; + unsigned long flags; + u64 ctrl; + u32 len; + + spin_lock_irqsave(&cp->tx_lock[ring], flags); + + /* This is a hard error, log it. */ + if (TX_BUFFS_AVAIL(cp, ring) <= + CAS_TABORT(cp)*(skb_shinfo(skb)->nr_frags + 1)) { + netif_stop_queue(dev); + spin_unlock_irqrestore(&cp->tx_lock[ring], flags); + printk(KERN_ERR PFX "%s: BUG! Tx Ring full when " + "queue awake!\n", dev->name); + return 1; + } + + ctrl = 0; + if (skb->ip_summed == CHECKSUM_HW) { + u64 csum_start_off, csum_stuff_off; + + csum_start_off = (u64) (skb->h.raw - skb->data); + csum_stuff_off = (u64) ((skb->h.raw + skb->csum) - skb->data); + + ctrl = TX_DESC_CSUM_EN | + CAS_BASE(TX_DESC_CSUM_START, csum_start_off) | + CAS_BASE(TX_DESC_CSUM_STUFF, csum_stuff_off); + } + + entry = cp->tx_new[ring]; + cp->tx_skbs[ring][entry] = skb; + + nr_frags = skb_shinfo(skb)->nr_frags; + len = skb_headlen(skb); + mapping = pci_map_page(cp->pdev, virt_to_page(skb->data), + offset_in_page(skb->data), len, + PCI_DMA_TODEVICE); + + tentry = entry; + tabort = cas_calc_tabort(cp, (unsigned long) skb->data, len); + if (unlikely(tabort)) { + /* NOTE: len is always > tabort */ + cas_write_txd(cp, ring, entry, mapping, len - tabort, + ctrl | TX_DESC_SOF, 0); + entry = TX_DESC_NEXT(ring, entry); + + memcpy(tx_tiny_buf(cp, ring, entry), skb->data + + len - tabort, tabort); + mapping = tx_tiny_map(cp, ring, entry, tentry); + cas_write_txd(cp, ring, entry, mapping, tabort, ctrl, + (nr_frags == 0)); + } else { + cas_write_txd(cp, ring, entry, mapping, len, ctrl | + TX_DESC_SOF, (nr_frags == 0)); + } + entry = TX_DESC_NEXT(ring, entry); + + for (frag = 0; frag < nr_frags; frag++) { + skb_frag_t *fragp = &skb_shinfo(skb)->frags[frag]; + + len = fragp->size; + mapping = pci_map_page(cp->pdev, fragp->page, + fragp->page_offset, len, + PCI_DMA_TODEVICE); + + tabort = cas_calc_tabort(cp, fragp->page_offset, len); + if (unlikely(tabort)) { + void *addr; + + /* NOTE: len is always > tabort */ + cas_write_txd(cp, ring, entry, mapping, len - tabort, + ctrl, 0); + entry = TX_DESC_NEXT(ring, entry); + + addr = cas_page_map(fragp->page); + memcpy(tx_tiny_buf(cp, ring, entry), + addr + fragp->page_offset + len - tabort, + tabort); + cas_page_unmap(addr); + mapping = tx_tiny_map(cp, ring, entry, tentry); + len = tabort; + } + + cas_write_txd(cp, ring, entry, mapping, len, ctrl, + (frag + 1 == nr_frags)); + entry = TX_DESC_NEXT(ring, entry); + } + + cp->tx_new[ring] = entry; + if (TX_BUFFS_AVAIL(cp, ring) <= CAS_TABORT(cp)*(MAX_SKB_FRAGS + 1)) + netif_stop_queue(dev); + + if (netif_msg_tx_queued(cp)) + printk(KERN_DEBUG "%s: tx[%d] queued, slot %d, skblen %d, " + "avail %d\n", + dev->name, ring, entry, skb->len, + TX_BUFFS_AVAIL(cp, ring)); + writel(entry, cp->regs + REG_TX_KICKN(ring)); + spin_unlock_irqrestore(&cp->tx_lock[ring], flags); + return 0; +} + +static int cas_start_xmit(struct sk_buff *skb, struct net_device *dev) +{ + struct cas *cp = netdev_priv(dev); + + /* this is only used as a load-balancing hint, so it doesn't + * need to be SMP safe + */ + static int ring; + + skb = skb_padto(skb, cp->min_frame_size); + if (!skb) + return 0; + + /* XXX: we need some higher-level QoS hooks to steer packets to + * individual queues. + */ + if (cas_xmit_tx_ringN(cp, ring++ & N_TX_RINGS_MASK, skb)) + return 1; + dev->trans_start = jiffies; + return 0; +} + +static void cas_init_tx_dma(struct cas *cp) +{ + u64 desc_dma = cp->block_dvma; + unsigned long off; + u32 val; + int i; + + /* set up tx completion writeback registers. must be 8-byte aligned */ +#ifdef USE_TX_COMPWB + off = offsetof(struct cas_init_block, tx_compwb); + writel((desc_dma + off) >> 32, cp->regs + REG_TX_COMPWB_DB_HI); + writel((desc_dma + off) & 0xffffffff, cp->regs + REG_TX_COMPWB_DB_LOW); +#endif + + /* enable completion writebacks, enable paced mode, + * disable read pipe, and disable pre-interrupt compwbs + */ + val = TX_CFG_COMPWB_Q1 | TX_CFG_COMPWB_Q2 | + TX_CFG_COMPWB_Q3 | TX_CFG_COMPWB_Q4 | + TX_CFG_DMA_RDPIPE_DIS | TX_CFG_PACED_MODE | + TX_CFG_INTR_COMPWB_DIS; + + /* write out tx ring info and tx desc bases */ + for (i = 0; i < MAX_TX_RINGS; i++) { + off = (unsigned long) cp->init_txds[i] - + (unsigned long) cp->init_block; + + val |= CAS_TX_RINGN_BASE(i); + writel((desc_dma + off) >> 32, cp->regs + REG_TX_DBN_HI(i)); + writel((desc_dma + off) & 0xffffffff, cp->regs + + REG_TX_DBN_LOW(i)); + /* don't zero out the kick register here as the system + * will wedge + */ + } + writel(val, cp->regs + REG_TX_CFG); + + /* program max burst sizes. these numbers should be different + * if doing QoS. + */ +#ifdef USE_QOS + writel(0x800, cp->regs + REG_TX_MAXBURST_0); + writel(0x1600, cp->regs + REG_TX_MAXBURST_1); + writel(0x2400, cp->regs + REG_TX_MAXBURST_2); + writel(0x4800, cp->regs + REG_TX_MAXBURST_3); +#else + writel(0x800, cp->regs + REG_TX_MAXBURST_0); + writel(0x800, cp->regs + REG_TX_MAXBURST_1); + writel(0x800, cp->regs + REG_TX_MAXBURST_2); + writel(0x800, cp->regs + REG_TX_MAXBURST_3); +#endif +} + +/* Must be invoked under cp->lock. */ +static inline void cas_init_dma(struct cas *cp) +{ + cas_init_tx_dma(cp); + cas_init_rx_dma(cp); +} + +/* Must be invoked under cp->lock. */ +static u32 cas_setup_multicast(struct cas *cp) +{ + u32 rxcfg = 0; + int i; + + if (cp->dev->flags & IFF_PROMISC) { + rxcfg |= MAC_RX_CFG_PROMISC_EN; + + } else if (cp->dev->flags & IFF_ALLMULTI) { + for (i=0; i < 16; i++) + writel(0xFFFF, cp->regs + REG_MAC_HASH_TABLEN(i)); + rxcfg |= MAC_RX_CFG_HASH_FILTER_EN; + + } else { + u16 hash_table[16]; + u32 crc; + struct dev_mc_list *dmi = cp->dev->mc_list; + int i; + + /* use the alternate mac address registers for the + * first 15 multicast addresses + */ + for (i = 1; i <= CAS_MC_EXACT_MATCH_SIZE; i++) { + if (!dmi) { + writel(0x0, cp->regs + REG_MAC_ADDRN(i*3 + 0)); + writel(0x0, cp->regs + REG_MAC_ADDRN(i*3 + 1)); + writel(0x0, cp->regs + REG_MAC_ADDRN(i*3 + 2)); + continue; + } + writel((dmi->dmi_addr[4] << 8) | dmi->dmi_addr[5], + cp->regs + REG_MAC_ADDRN(i*3 + 0)); + writel((dmi->dmi_addr[2] << 8) | dmi->dmi_addr[3], + cp->regs + REG_MAC_ADDRN(i*3 + 1)); + writel((dmi->dmi_addr[0] << 8) | dmi->dmi_addr[1], + cp->regs + REG_MAC_ADDRN(i*3 + 2)); + dmi = dmi->next; + } + + /* use hw hash table for the next series of + * multicast addresses + */ + memset(hash_table, 0, sizeof(hash_table)); + while (dmi) { + crc = ether_crc_le(ETH_ALEN, dmi->dmi_addr); + crc >>= 24; + hash_table[crc >> 4] |= 1 << (15 - (crc & 0xf)); + dmi = dmi->next; + } + for (i=0; i < 16; i++) + writel(hash_table[i], cp->regs + + REG_MAC_HASH_TABLEN(i)); + rxcfg |= MAC_RX_CFG_HASH_FILTER_EN; + } + + return rxcfg; +} + +/* must be invoked under cp->stat_lock[N_TX_RINGS] */ +static void cas_clear_mac_err(struct cas *cp) +{ + writel(0, cp->regs + REG_MAC_COLL_NORMAL); + writel(0, cp->regs + REG_MAC_COLL_FIRST); + writel(0, cp->regs + REG_MAC_COLL_EXCESS); + writel(0, cp->regs + REG_MAC_COLL_LATE); + writel(0, cp->regs + REG_MAC_TIMER_DEFER); + writel(0, cp->regs + REG_MAC_ATTEMPTS_PEAK); + writel(0, cp->regs + REG_MAC_RECV_FRAME); + writel(0, cp->regs + REG_MAC_LEN_ERR); + writel(0, cp->regs + REG_MAC_ALIGN_ERR); + writel(0, cp->regs + REG_MAC_FCS_ERR); + writel(0, cp->regs + REG_MAC_RX_CODE_ERR); +} + + +static void cas_mac_reset(struct cas *cp) +{ + int i; + + /* do both TX and RX reset */ + writel(0x1, cp->regs + REG_MAC_TX_RESET); + writel(0x1, cp->regs + REG_MAC_RX_RESET); + + /* wait for TX */ + i = STOP_TRIES; + while (i-- > 0) { + if (readl(cp->regs + REG_MAC_TX_RESET) == 0) + break; + udelay(10); + } + + /* wait for RX */ + i = STOP_TRIES; + while (i-- > 0) { + if (readl(cp->regs + REG_MAC_RX_RESET) == 0) + break; + udelay(10); + } + + if (readl(cp->regs + REG_MAC_TX_RESET) | + readl(cp->regs + REG_MAC_RX_RESET)) + printk(KERN_ERR "%s: mac tx[%d]/rx[%d] reset failed [%08x]\n", + cp->dev->name, readl(cp->regs + REG_MAC_TX_RESET), + readl(cp->regs + REG_MAC_RX_RESET), + readl(cp->regs + REG_MAC_STATE_MACHINE)); +} + + +/* Must be invoked under cp->lock. */ +static void cas_init_mac(struct cas *cp) +{ + unsigned char *e = &cp->dev->dev_addr[0]; + int i; +#ifdef CONFIG_CASSINI_MULTICAST_REG_WRITE + u32 rxcfg; +#endif + cas_mac_reset(cp); + + /* setup core arbitration weight register */ + writel(CAWR_RR_DIS, cp->regs + REG_CAWR); + + /* XXX Use pci_dma_burst_advice() */ +#if !defined(CONFIG_SPARC64) && !defined(CONFIG_ALPHA) + /* set the infinite burst register for chips that don't have + * pci issues. + */ + if ((cp->cas_flags & CAS_FLAG_TARGET_ABORT) == 0) + writel(INF_BURST_EN, cp->regs + REG_INF_BURST); +#endif + + writel(0x1BF0, cp->regs + REG_MAC_SEND_PAUSE); + + writel(0x00, cp->regs + REG_MAC_IPG0); + writel(0x08, cp->regs + REG_MAC_IPG1); + writel(0x04, cp->regs + REG_MAC_IPG2); + + /* change later for 802.3z */ + writel(0x40, cp->regs + REG_MAC_SLOT_TIME); + + /* min frame + FCS */ + writel(ETH_ZLEN + 4, cp->regs + REG_MAC_FRAMESIZE_MIN); + + /* Ethernet payload + header + FCS + optional VLAN tag. NOTE: we + * specify the maximum frame size to prevent RX tag errors on + * oversized frames. + */ + writel(CAS_BASE(MAC_FRAMESIZE_MAX_BURST, 0x2000) | + CAS_BASE(MAC_FRAMESIZE_MAX_FRAME, + (CAS_MAX_MTU + ETH_HLEN + 4 + 4)), + cp->regs + REG_MAC_FRAMESIZE_MAX); + + /* NOTE: crc_size is used as a surrogate for half-duplex. + * workaround saturn half-duplex issue by increasing preamble + * size to 65 bytes. + */ + if ((cp->cas_flags & CAS_FLAG_SATURN) && cp->crc_size) + writel(0x41, cp->regs + REG_MAC_PA_SIZE); + else + writel(0x07, cp->regs + REG_MAC_PA_SIZE); + writel(0x04, cp->regs + REG_MAC_JAM_SIZE); + writel(0x10, cp->regs + REG_MAC_ATTEMPT_LIMIT); + writel(0x8808, cp->regs + REG_MAC_CTRL_TYPE); + + writel((e[5] | (e[4] << 8)) & 0x3ff, cp->regs + REG_MAC_RANDOM_SEED); + + writel(0, cp->regs + REG_MAC_ADDR_FILTER0); + writel(0, cp->regs + REG_MAC_ADDR_FILTER1); + writel(0, cp->regs + REG_MAC_ADDR_FILTER2); + writel(0, cp->regs + REG_MAC_ADDR_FILTER2_1_MASK); + writel(0, cp->regs + REG_MAC_ADDR_FILTER0_MASK); + + /* setup mac address in perfect filter array */ + for (i = 0; i < 45; i++) + writel(0x0, cp->regs + REG_MAC_ADDRN(i)); + + writel((e[4] << 8) | e[5], cp->regs + REG_MAC_ADDRN(0)); + writel((e[2] << 8) | e[3], cp->regs + REG_MAC_ADDRN(1)); + writel((e[0] << 8) | e[1], cp->regs + REG_MAC_ADDRN(2)); + + writel(0x0001, cp->regs + REG_MAC_ADDRN(42)); + writel(0xc200, cp->regs + REG_MAC_ADDRN(43)); + writel(0x0180, cp->regs + REG_MAC_ADDRN(44)); + +#ifndef CONFIG_CASSINI_MULTICAST_REG_WRITE + cp->mac_rx_cfg = cas_setup_multicast(cp); +#else + /* WTZ: Do what Adrian did in cas_set_multicast. Doing + * a writel does not seem to be necessary because Cassini + * seems to preserve the configuration when we do the reset. + * If the chip is in trouble, though, it is not clear if we + * can really count on this behavior. cas_set_multicast uses + * spin_lock_irqsave, but we are called only in cas_init_hw and + * cas_init_hw is protected by cas_lock_all, which calls + * spin_lock_irq (so it doesn't need to save the flags, and + * we should be OK for the writel, as that is the only + * difference). + */ + cp->mac_rx_cfg = rxcfg = cas_setup_multicast(cp); + writel(rxcfg, cp->regs + REG_MAC_RX_CFG); +#endif + spin_lock(&cp->stat_lock[N_TX_RINGS]); + cas_clear_mac_err(cp); + spin_unlock(&cp->stat_lock[N_TX_RINGS]); + + /* Setup MAC interrupts. We want to get all of the interesting + * counter expiration events, but we do not want to hear about + * normal rx/tx as the DMA engine tells us that. + */ + writel(MAC_TX_FRAME_XMIT, cp->regs + REG_MAC_TX_MASK); + writel(MAC_RX_FRAME_RECV, cp->regs + REG_MAC_RX_MASK); + + /* Don't enable even the PAUSE interrupts for now, we + * make no use of those events other than to record them. + */ + writel(0xffffffff, cp->regs + REG_MAC_CTRL_MASK); +} + +/* Must be invoked under cp->lock. */ +static void cas_init_pause_thresholds(struct cas *cp) +{ + /* Calculate pause thresholds. Setting the OFF threshold to the + * full RX fifo size effectively disables PAUSE generation + */ + if (cp->rx_fifo_size <= (2 * 1024)) { + cp->rx_pause_off = cp->rx_pause_on = cp->rx_fifo_size; + } else { + int max_frame = (cp->dev->mtu + ETH_HLEN + 4 + 4 + 64) & ~63; + if (max_frame * 3 > cp->rx_fifo_size) { + cp->rx_pause_off = 7104; + cp->rx_pause_on = 960; + } else { + int off = (cp->rx_fifo_size - (max_frame * 2)); + int on = off - max_frame; + cp->rx_pause_off = off; + cp->rx_pause_on = on; + } + } +} + +static int cas_vpd_match(const void __iomem *p, const char *str) +{ + int len = strlen(str) + 1; + int i; + + for (i = 0; i < len; i++) { + if (readb(p + i) != str[i]) + return 0; + } + return 1; +} + + +/* get the mac address by reading the vpd information in the rom. + * also get the phy type and determine if there's an entropy generator. + * NOTE: this is a bit convoluted for the following reasons: + * 1) vpd info has order-dependent mac addresses for multinic cards + * 2) the only way to determine the nic order is to use the slot + * number. + * 3) fiber cards don't have bridges, so their slot numbers don't + * mean anything. + * 4) we don't actually know we have a fiber card until after + * the mac addresses are parsed. + */ +static int cas_get_vpd_info(struct cas *cp, unsigned char *dev_addr, + const int offset) +{ + void __iomem *p = cp->regs + REG_EXPANSION_ROM_RUN_START; + void __iomem *base, *kstart; + int i, len; + int found = 0; +#define VPD_FOUND_MAC 0x01 +#define VPD_FOUND_PHY 0x02 + + int phy_type = CAS_PHY_MII_MDIO0; /* default phy type */ + int mac_off = 0; + + /* give us access to the PROM */ + writel(BIM_LOCAL_DEV_PROM | BIM_LOCAL_DEV_PAD, + cp->regs + REG_BIM_LOCAL_DEV_EN); + + /* check for an expansion rom */ + if (readb(p) != 0x55 || readb(p + 1) != 0xaa) + goto use_random_mac_addr; + + /* search for beginning of vpd */ + base = 0; + for (i = 2; i < EXPANSION_ROM_SIZE; i++) { + /* check for PCIR */ + if ((readb(p + i + 0) == 0x50) && + (readb(p + i + 1) == 0x43) && + (readb(p + i + 2) == 0x49) && + (readb(p + i + 3) == 0x52)) { + base = p + (readb(p + i + 8) | + (readb(p + i + 9) << 8)); + break; + } + } + + if (!base || (readb(base) != 0x82)) + goto use_random_mac_addr; + + i = (readb(base + 1) | (readb(base + 2) << 8)) + 3; + while (i < EXPANSION_ROM_SIZE) { + if (readb(base + i) != 0x90) /* no vpd found */ + goto use_random_mac_addr; + + /* found a vpd field */ + len = readb(base + i + 1) | (readb(base + i + 2) << 8); + + /* extract keywords */ + kstart = base + i + 3; + p = kstart; + while ((p - kstart) < len) { + int klen = readb(p + 2); + int j; + char type; + + p += 3; + + /* look for the following things: + * -- correct length == 29 + * 3 (type) + 2 (size) + + * 18 (strlen("local-mac-address") + 1) + + * 6 (mac addr) + * -- VPD Instance 'I' + * -- VPD Type Bytes 'B' + * -- VPD data length == 6 + * -- property string == local-mac-address + * + * -- correct length == 24 + * 3 (type) + 2 (size) + + * 12 (strlen("entropy-dev") + 1) + + * 7 (strlen("vms110") + 1) + * -- VPD Instance 'I' + * -- VPD Type String 'B' + * -- VPD data length == 7 + * -- property string == entropy-dev + * + * -- correct length == 18 + * 3 (type) + 2 (size) + + * 9 (strlen("phy-type") + 1) + + * 4 (strlen("pcs") + 1) + * -- VPD Instance 'I' + * -- VPD Type String 'S' + * -- VPD data length == 4 + * -- property string == phy-type + * + * -- correct length == 23 + * 3 (type) + 2 (size) + + * 14 (strlen("phy-interface") + 1) + + * 4 (strlen("pcs") + 1) + * -- VPD Instance 'I' + * -- VPD Type String 'S' + * -- VPD data length == 4 + * -- property string == phy-interface + */ + if (readb(p) != 'I') + goto next; + + /* finally, check string and length */ + type = readb(p + 3); + if (type == 'B') { + if ((klen == 29) && readb(p + 4) == 6 && + cas_vpd_match(p + 5, + "local-mac-address")) { + if (mac_off++ > offset) + goto next; + + /* set mac address */ + for (j = 0; j < 6; j++) + dev_addr[j] = + readb(p + 23 + j); + goto found_mac; + } + } + + if (type != 'S') + goto next; + +#ifdef USE_ENTROPY_DEV + if ((klen == 24) && + cas_vpd_match(p + 5, "entropy-dev") && + cas_vpd_match(p + 17, "vms110")) { + cp->cas_flags |= CAS_FLAG_ENTROPY_DEV; + goto next; + } +#endif + + if (found & VPD_FOUND_PHY) + goto next; + + if ((klen == 18) && readb(p + 4) == 4 && + cas_vpd_match(p + 5, "phy-type")) { + if (cas_vpd_match(p + 14, "pcs")) { + phy_type = CAS_PHY_SERDES; + goto found_phy; + } + } + + if ((klen == 23) && readb(p + 4) == 4 && + cas_vpd_match(p + 5, "phy-interface")) { + if (cas_vpd_match(p + 19, "pcs")) { + phy_type = CAS_PHY_SERDES; + goto found_phy; + } + } +found_mac: + found |= VPD_FOUND_MAC; + goto next; + +found_phy: + found |= VPD_FOUND_PHY; + +next: + p += klen; + } + i += len + 3; + } + +use_random_mac_addr: + if (found & VPD_FOUND_MAC) + goto done; + + /* Sun MAC prefix then 3 random bytes. */ + printk(PFX "MAC address not found in ROM VPD\n"); + dev_addr[0] = 0x08; + dev_addr[1] = 0x00; + dev_addr[2] = 0x20; + get_random_bytes(dev_addr + 3, 3); + +done: + writel(0, cp->regs + REG_BIM_LOCAL_DEV_EN); + return phy_type; +} + +/* check pci invariants */ +static void cas_check_pci_invariants(struct cas *cp) +{ + struct pci_dev *pdev = cp->pdev; + u8 rev; + + cp->cas_flags = 0; + pci_read_config_byte(pdev, PCI_REVISION_ID, &rev); + if ((pdev->vendor == PCI_VENDOR_ID_SUN) && + (pdev->device == PCI_DEVICE_ID_SUN_CASSINI)) { + if (rev >= CAS_ID_REVPLUS) + cp->cas_flags |= CAS_FLAG_REG_PLUS; + if (rev < CAS_ID_REVPLUS02u) + cp->cas_flags |= CAS_FLAG_TARGET_ABORT; + + /* Original Cassini supports HW CSUM, but it's not + * enabled by default as it can trigger TX hangs. + */ + if (rev < CAS_ID_REV2) + cp->cas_flags |= CAS_FLAG_NO_HW_CSUM; + } else { + /* Only sun has original cassini chips. */ + cp->cas_flags |= CAS_FLAG_REG_PLUS; + + /* We use a flag because the same phy might be externally + * connected. + */ + if ((pdev->vendor == PCI_VENDOR_ID_NS) && + (pdev->device == PCI_DEVICE_ID_NS_SATURN)) + cp->cas_flags |= CAS_FLAG_SATURN; + } +} + + +static int cas_check_invariants(struct cas *cp) +{ + struct pci_dev *pdev = cp->pdev; + u32 cfg; + int i; + + /* get page size for rx buffers. */ + cp->page_order = 0; +#ifdef USE_PAGE_ORDER + if (PAGE_SHIFT < CAS_JUMBO_PAGE_SHIFT) { + /* see if we can allocate larger pages */ + struct page *page = alloc_pages(GFP_ATOMIC, + CAS_JUMBO_PAGE_SHIFT - + PAGE_SHIFT); + if (page) { + __free_pages(page, CAS_JUMBO_PAGE_SHIFT - PAGE_SHIFT); + cp->page_order = CAS_JUMBO_PAGE_SHIFT - PAGE_SHIFT; + } else { + printk(PFX "MTU limited to %d bytes\n", CAS_MAX_MTU); + } + } +#endif + cp->page_size = (PAGE_SIZE << cp->page_order); + + /* Fetch the FIFO configurations. */ + cp->tx_fifo_size = readl(cp->regs + REG_TX_FIFO_SIZE) * 64; + cp->rx_fifo_size = RX_FIFO_SIZE; + + /* finish phy determination. MDIO1 takes precedence over MDIO0 if + * they're both connected. + */ + cp->phy_type = cas_get_vpd_info(cp, cp->dev->dev_addr, + PCI_SLOT(pdev->devfn)); + if (cp->phy_type & CAS_PHY_SERDES) { + cp->cas_flags |= CAS_FLAG_1000MB_CAP; + return 0; /* no more checking needed */ + } + + /* MII */ + cfg = readl(cp->regs + REG_MIF_CFG); + if (cfg & MIF_CFG_MDIO_1) { + cp->phy_type = CAS_PHY_MII_MDIO1; + } else if (cfg & MIF_CFG_MDIO_0) { + cp->phy_type = CAS_PHY_MII_MDIO0; + } + + cas_mif_poll(cp, 0); + writel(PCS_DATAPATH_MODE_MII, cp->regs + REG_PCS_DATAPATH_MODE); + + for (i = 0; i < 32; i++) { + u32 phy_id; + int j; + + for (j = 0; j < 3; j++) { + cp->phy_addr = i; + phy_id = cas_phy_read(cp, MII_PHYSID1) << 16; + phy_id |= cas_phy_read(cp, MII_PHYSID2); + if (phy_id && (phy_id != 0xFFFFFFFF)) { + cp->phy_id = phy_id; + goto done; + } + } + } + printk(KERN_ERR PFX "MII phy did not respond [%08x]\n", + readl(cp->regs + REG_MIF_STATE_MACHINE)); + return -1; + +done: + /* see if we can do gigabit */ + cfg = cas_phy_read(cp, MII_BMSR); + if ((cfg & CAS_BMSR_1000_EXTEND) && + cas_phy_read(cp, CAS_MII_1000_EXTEND)) + cp->cas_flags |= CAS_FLAG_1000MB_CAP; + return 0; +} + +/* Must be invoked under cp->lock. */ +static inline void cas_start_dma(struct cas *cp) +{ + int i; + u32 val; + int txfailed = 0; + + /* enable dma */ + val = readl(cp->regs + REG_TX_CFG) | TX_CFG_DMA_EN; + writel(val, cp->regs + REG_TX_CFG); + val = readl(cp->regs + REG_RX_CFG) | RX_CFG_DMA_EN; + writel(val, cp->regs + REG_RX_CFG); + + /* enable the mac */ + val = readl(cp->regs + REG_MAC_TX_CFG) | MAC_TX_CFG_EN; + writel(val, cp->regs + REG_MAC_TX_CFG); + val = readl(cp->regs + REG_MAC_RX_CFG) | MAC_RX_CFG_EN; + writel(val, cp->regs + REG_MAC_RX_CFG); + + i = STOP_TRIES; + while (i-- > 0) { + val = readl(cp->regs + REG_MAC_TX_CFG); + if ((val & MAC_TX_CFG_EN)) + break; + udelay(10); + } + if (i < 0) txfailed = 1; + i = STOP_TRIES; + while (i-- > 0) { + val = readl(cp->regs + REG_MAC_RX_CFG); + if ((val & MAC_RX_CFG_EN)) { + if (txfailed) { + printk(KERN_ERR + "%s: enabling mac failed [tx:%08x:%08x].\n", + cp->dev->name, + readl(cp->regs + REG_MIF_STATE_MACHINE), + readl(cp->regs + REG_MAC_STATE_MACHINE)); + } + goto enable_rx_done; + } + udelay(10); + } + printk(KERN_ERR "%s: enabling mac failed [%s:%08x:%08x].\n", + cp->dev->name, + (txfailed? "tx,rx":"rx"), + readl(cp->regs + REG_MIF_STATE_MACHINE), + readl(cp->regs + REG_MAC_STATE_MACHINE)); + +enable_rx_done: + cas_unmask_intr(cp); /* enable interrupts */ + writel(RX_DESC_RINGN_SIZE(0) - 4, cp->regs + REG_RX_KICK); + writel(0, cp->regs + REG_RX_COMP_TAIL); + + if (cp->cas_flags & CAS_FLAG_REG_PLUS) { + if (N_RX_DESC_RINGS > 1) + writel(RX_DESC_RINGN_SIZE(1) - 4, + cp->regs + REG_PLUS_RX_KICK1); + + for (i = 1; i < N_RX_COMP_RINGS; i++) + writel(0, cp->regs + REG_PLUS_RX_COMPN_TAIL(i)); + } +} + +/* Must be invoked under cp->lock. */ +static void cas_read_pcs_link_mode(struct cas *cp, int *fd, int *spd, + int *pause) +{ + u32 val = readl(cp->regs + REG_PCS_MII_LPA); + *fd = (val & PCS_MII_LPA_FD) ? 1 : 0; + *pause = (val & PCS_MII_LPA_SYM_PAUSE) ? 0x01 : 0x00; + if (val & PCS_MII_LPA_ASYM_PAUSE) + *pause |= 0x10; + *spd = 1000; +} + +/* Must be invoked under cp->lock. */ +static void cas_read_mii_link_mode(struct cas *cp, int *fd, int *spd, + int *pause) +{ + u32 val; + + *fd = 0; + *spd = 10; + *pause = 0; + + /* use GMII registers */ + val = cas_phy_read(cp, MII_LPA); + if (val & CAS_LPA_PAUSE) + *pause = 0x01; + + if (val & CAS_LPA_ASYM_PAUSE) + *pause |= 0x10; + + if (val & LPA_DUPLEX) + *fd = 1; + if (val & LPA_100) + *spd = 100; + + if (cp->cas_flags & CAS_FLAG_1000MB_CAP) { + val = cas_phy_read(cp, CAS_MII_1000_STATUS); + if (val & (CAS_LPA_1000FULL | CAS_LPA_1000HALF)) + *spd = 1000; + if (val & CAS_LPA_1000FULL) + *fd = 1; + } +} + +/* A link-up condition has occurred, initialize and enable the + * rest of the chip. + * + * Must be invoked under cp->lock. + */ +static void cas_set_link_modes(struct cas *cp) +{ + u32 val; + int full_duplex, speed, pause; + + full_duplex = 0; + speed = 10; + pause = 0; + + if (CAS_PHY_MII(cp->phy_type)) { + cas_mif_poll(cp, 0); + val = cas_phy_read(cp, MII_BMCR); + if (val & BMCR_ANENABLE) { + cas_read_mii_link_mode(cp, &full_duplex, &speed, + &pause); + } else { + if (val & BMCR_FULLDPLX) + full_duplex = 1; + + if (val & BMCR_SPEED100) + speed = 100; + else if (val & CAS_BMCR_SPEED1000) + speed = (cp->cas_flags & CAS_FLAG_1000MB_CAP) ? + 1000 : 100; + } + cas_mif_poll(cp, 1); + + } else { + val = readl(cp->regs + REG_PCS_MII_CTRL); + cas_read_pcs_link_mode(cp, &full_duplex, &speed, &pause); + if ((val & PCS_MII_AUTONEG_EN) == 0) { + if (val & PCS_MII_CTRL_DUPLEX) + full_duplex = 1; + } + } + + if (netif_msg_link(cp)) + printk(KERN_INFO "%s: Link up at %d Mbps, %s-duplex.\n", + cp->dev->name, speed, (full_duplex ? "full" : "half")); + + val = MAC_XIF_TX_MII_OUTPUT_EN | MAC_XIF_LINK_LED; + if (CAS_PHY_MII(cp->phy_type)) { + val |= MAC_XIF_MII_BUFFER_OUTPUT_EN; + if (!full_duplex) + val |= MAC_XIF_DISABLE_ECHO; + } + if (full_duplex) + val |= MAC_XIF_FDPLX_LED; + if (speed == 1000) + val |= MAC_XIF_GMII_MODE; + writel(val, cp->regs + REG_MAC_XIF_CFG); + + /* deal with carrier and collision detect. */ + val = MAC_TX_CFG_IPG_EN; + if (full_duplex) { + val |= MAC_TX_CFG_IGNORE_CARRIER; + val |= MAC_TX_CFG_IGNORE_COLL; + } else { +#ifndef USE_CSMA_CD_PROTO + val |= MAC_TX_CFG_NEVER_GIVE_UP_EN; + val |= MAC_TX_CFG_NEVER_GIVE_UP_LIM; +#endif + } + /* val now set up for REG_MAC_TX_CFG */ + + /* If gigabit and half-duplex, enable carrier extension + * mode. increase slot time to 512 bytes as well. + * else, disable it and make sure slot time is 64 bytes. + * also activate checksum bug workaround + */ + if ((speed == 1000) && !full_duplex) { + writel(val | MAC_TX_CFG_CARRIER_EXTEND, + cp->regs + REG_MAC_TX_CFG); + + val = readl(cp->regs + REG_MAC_RX_CFG); + val &= ~MAC_RX_CFG_STRIP_FCS; /* checksum workaround */ + writel(val | MAC_RX_CFG_CARRIER_EXTEND, + cp->regs + REG_MAC_RX_CFG); + + writel(0x200, cp->regs + REG_MAC_SLOT_TIME); + + cp->crc_size = 4; + /* minimum size gigabit frame at half duplex */ + cp->min_frame_size = CAS_1000MB_MIN_FRAME; + + } else { + writel(val, cp->regs + REG_MAC_TX_CFG); + + /* checksum bug workaround. don't strip FCS when in + * half-duplex mode + */ + val = readl(cp->regs + REG_MAC_RX_CFG); + if (full_duplex) { + val |= MAC_RX_CFG_STRIP_FCS; + cp->crc_size = 0; + cp->min_frame_size = CAS_MIN_MTU; + } else { + val &= ~MAC_RX_CFG_STRIP_FCS; + cp->crc_size = 4; + cp->min_frame_size = CAS_MIN_FRAME; + } + writel(val & ~MAC_RX_CFG_CARRIER_EXTEND, + cp->regs + REG_MAC_RX_CFG); + writel(0x40, cp->regs + REG_MAC_SLOT_TIME); + } + + if (netif_msg_link(cp)) { + if (pause & 0x01) { + printk(KERN_INFO "%s: Pause is enabled " + "(rxfifo: %d off: %d on: %d)\n", + cp->dev->name, + cp->rx_fifo_size, + cp->rx_pause_off, + cp->rx_pause_on); + } else if (pause & 0x10) { + printk(KERN_INFO "%s: TX pause enabled\n", + cp->dev->name); + } else { + printk(KERN_INFO "%s: Pause is disabled\n", + cp->dev->name); + } + } + + val = readl(cp->regs + REG_MAC_CTRL_CFG); + val &= ~(MAC_CTRL_CFG_SEND_PAUSE_EN | MAC_CTRL_CFG_RECV_PAUSE_EN); + if (pause) { /* symmetric or asymmetric pause */ + val |= MAC_CTRL_CFG_SEND_PAUSE_EN; + if (pause & 0x01) { /* symmetric pause */ + val |= MAC_CTRL_CFG_RECV_PAUSE_EN; + } + } + writel(val, cp->regs + REG_MAC_CTRL_CFG); + cas_start_dma(cp); +} + +/* Must be invoked under cp->lock. */ +static void cas_init_hw(struct cas *cp, int restart_link) +{ + if (restart_link) + cas_phy_init(cp); + + cas_init_pause_thresholds(cp); + cas_init_mac(cp); + cas_init_dma(cp); + + if (restart_link) { + /* Default aneg parameters */ + cp->timer_ticks = 0; + cas_begin_auto_negotiation(cp, NULL); + } else if (cp->lstate == link_up) { + cas_set_link_modes(cp); + netif_carrier_on(cp->dev); + } +} + +/* Must be invoked under cp->lock. on earlier cassini boards, + * SOFT_0 is tied to PCI reset. we use this to force a pci reset, + * let it settle out, and then restore pci state. + */ +static void cas_hard_reset(struct cas *cp) +{ + writel(BIM_LOCAL_DEV_SOFT_0, cp->regs + REG_BIM_LOCAL_DEV_EN); + udelay(20); + pci_restore_state(cp->pdev); +} + + +static void cas_global_reset(struct cas *cp, int blkflag) +{ + int limit; + + /* issue a global reset. don't use RSTOUT. */ + if (blkflag && !CAS_PHY_MII(cp->phy_type)) { + /* For PCS, when the blkflag is set, we should set the + * SW_REST_BLOCK_PCS_SLINK bit to prevent the results of + * the last autonegotiation from being cleared. We'll + * need some special handling if the chip is set into a + * loopback mode. + */ + writel((SW_RESET_TX | SW_RESET_RX | SW_RESET_BLOCK_PCS_SLINK), + cp->regs + REG_SW_RESET); + } else { + writel(SW_RESET_TX | SW_RESET_RX, cp->regs + REG_SW_RESET); + } + + /* need to wait at least 3ms before polling register */ + mdelay(3); + + limit = STOP_TRIES; + while (limit-- > 0) { + u32 val = readl(cp->regs + REG_SW_RESET); + if ((val & (SW_RESET_TX | SW_RESET_RX)) == 0) + goto done; + udelay(10); + } + printk(KERN_ERR "%s: sw reset failed.\n", cp->dev->name); + +done: + /* enable various BIM interrupts */ + writel(BIM_CFG_DPAR_INTR_ENABLE | BIM_CFG_RMA_INTR_ENABLE | + BIM_CFG_RTA_INTR_ENABLE, cp->regs + REG_BIM_CFG); + + /* clear out pci error status mask for handled errors. + * we don't deal with DMA counter overflows as they happen + * all the time. + */ + writel(0xFFFFFFFFU & ~(PCI_ERR_BADACK | PCI_ERR_DTRTO | + PCI_ERR_OTHER | PCI_ERR_BIM_DMA_WRITE | + PCI_ERR_BIM_DMA_READ), cp->regs + + REG_PCI_ERR_STATUS_MASK); + + /* set up for MII by default to address mac rx reset timeout + * issue + */ + writel(PCS_DATAPATH_MODE_MII, cp->regs + REG_PCS_DATAPATH_MODE); +} + +static void cas_reset(struct cas *cp, int blkflag) +{ + u32 val; + + cas_mask_intr(cp); + cas_global_reset(cp, blkflag); + cas_mac_reset(cp); + cas_entropy_reset(cp); + + /* disable dma engines. */ + val = readl(cp->regs + REG_TX_CFG); + val &= ~TX_CFG_DMA_EN; + writel(val, cp->regs + REG_TX_CFG); + + val = readl(cp->regs + REG_RX_CFG); + val &= ~RX_CFG_DMA_EN; + writel(val, cp->regs + REG_RX_CFG); + + /* program header parser */ + if ((cp->cas_flags & CAS_FLAG_TARGET_ABORT) || + (CAS_HP_ALT_FIRMWARE == cas_prog_null)) { + cas_load_firmware(cp, CAS_HP_FIRMWARE); + } else { + cas_load_firmware(cp, CAS_HP_ALT_FIRMWARE); + } + + /* clear out error registers */ + spin_lock(&cp->stat_lock[N_TX_RINGS]); + cas_clear_mac_err(cp); + spin_unlock(&cp->stat_lock[N_TX_RINGS]); +} + +/* Shut down the chip, must be called with pm_sem held. */ +static void cas_shutdown(struct cas *cp) +{ + unsigned long flags; + + /* Make us not-running to avoid timers respawning */ + cp->hw_running = 0; + + del_timer_sync(&cp->link_timer); + + /* Stop the reset task */ +#if 0 + while (atomic_read(&cp->reset_task_pending_mtu) || + atomic_read(&cp->reset_task_pending_spare) || + atomic_read(&cp->reset_task_pending_all)) + schedule(); + +#else + while (atomic_read(&cp->reset_task_pending)) + schedule(); +#endif + /* Actually stop the chip */ + cas_lock_all_save(cp, flags); + cas_reset(cp, 0); + if (cp->cas_flags & CAS_FLAG_SATURN) + cas_phy_powerdown(cp); + cas_unlock_all_restore(cp, flags); +} + +static int cas_change_mtu(struct net_device *dev, int new_mtu) +{ + struct cas *cp = netdev_priv(dev); + + if (new_mtu < CAS_MIN_MTU || new_mtu > CAS_MAX_MTU) + return -EINVAL; + + dev->mtu = new_mtu; + if (!netif_running(dev) || !netif_device_present(dev)) + return 0; + + /* let the reset task handle it */ +#if 1 + atomic_inc(&cp->reset_task_pending); + if ((cp->phy_type & CAS_PHY_SERDES)) { + atomic_inc(&cp->reset_task_pending_all); + } else { + atomic_inc(&cp->reset_task_pending_mtu); + } + schedule_work(&cp->reset_task); +#else + atomic_set(&cp->reset_task_pending, (cp->phy_type & CAS_PHY_SERDES) ? + CAS_RESET_ALL : CAS_RESET_MTU); + printk(KERN_ERR "reset called in cas_change_mtu\n"); + schedule_work(&cp->reset_task); +#endif + + flush_scheduled_work(); + return 0; +} + +static void cas_clean_txd(struct cas *cp, int ring) +{ + struct cas_tx_desc *txd = cp->init_txds[ring]; + struct sk_buff *skb, **skbs = cp->tx_skbs[ring]; + u64 daddr, dlen; + int i, size; + + size = TX_DESC_RINGN_SIZE(ring); + for (i = 0; i < size; i++) { + int frag; + + if (skbs[i] == NULL) + continue; + + skb = skbs[i]; + skbs[i] = NULL; + + for (frag = 0; frag <= skb_shinfo(skb)->nr_frags; frag++) { + int ent = i & (size - 1); + + /* first buffer is never a tiny buffer and so + * needs to be unmapped. + */ + daddr = le64_to_cpu(txd[ent].buffer); + dlen = CAS_VAL(TX_DESC_BUFLEN, + le64_to_cpu(txd[ent].control)); + pci_unmap_page(cp->pdev, daddr, dlen, + PCI_DMA_TODEVICE); + + if (frag != skb_shinfo(skb)->nr_frags) { + i++; + + /* next buffer might by a tiny buffer. + * skip past it. + */ + ent = i & (size - 1); + if (cp->tx_tiny_use[ring][ent].used) + i++; + } + } + dev_kfree_skb_any(skb); + } + + /* zero out tiny buf usage */ + memset(cp->tx_tiny_use[ring], 0, size*sizeof(*cp->tx_tiny_use[ring])); +} + +/* freed on close */ +static inline void cas_free_rx_desc(struct cas *cp, int ring) +{ + cas_page_t **page = cp->rx_pages[ring]; + int i, size; + + size = RX_DESC_RINGN_SIZE(ring); + for (i = 0; i < size; i++) { + if (page[i]) { + cas_page_free(cp, page[i]); + page[i] = NULL; + } + } +} + +static void cas_free_rxds(struct cas *cp) +{ + int i; + + for (i = 0; i < N_RX_DESC_RINGS; i++) + cas_free_rx_desc(cp, i); +} + +/* Must be invoked under cp->lock. */ +static void cas_clean_rings(struct cas *cp) +{ + int i; + + /* need to clean all tx rings */ + memset(cp->tx_old, 0, sizeof(*cp->tx_old)*N_TX_RINGS); + memset(cp->tx_new, 0, sizeof(*cp->tx_new)*N_TX_RINGS); + for (i = 0; i < N_TX_RINGS; i++) + cas_clean_txd(cp, i); + + /* zero out init block */ + memset(cp->init_block, 0, sizeof(struct cas_init_block)); + cas_clean_rxds(cp); + cas_clean_rxcs(cp); +} + +/* allocated on open */ +static inline int cas_alloc_rx_desc(struct cas *cp, int ring) +{ + cas_page_t **page = cp->rx_pages[ring]; + int size, i = 0; + + size = RX_DESC_RINGN_SIZE(ring); + for (i = 0; i < size; i++) { + if ((page[i] = cas_page_alloc(cp, GFP_KERNEL)) == NULL) + return -1; + } + return 0; +} + +static int cas_alloc_rxds(struct cas *cp) +{ + int i; + + for (i = 0; i < N_RX_DESC_RINGS; i++) { + if (cas_alloc_rx_desc(cp, i) < 0) { + cas_free_rxds(cp); + return -1; + } + } + return 0; +} + +static void cas_reset_task(void *data) +{ + struct cas *cp = (struct cas *) data; +#if 0 + int pending = atomic_read(&cp->reset_task_pending); +#else + int pending_all = atomic_read(&cp->reset_task_pending_all); + int pending_spare = atomic_read(&cp->reset_task_pending_spare); + int pending_mtu = atomic_read(&cp->reset_task_pending_mtu); + + if (pending_all == 0 && pending_spare == 0 && pending_mtu == 0) { + /* We can have more tasks scheduled than actually + * needed. + */ + atomic_dec(&cp->reset_task_pending); + return; + } +#endif + /* The link went down, we reset the ring, but keep + * DMA stopped. Use this function for reset + * on error as well. + */ + if (cp->hw_running) { + unsigned long flags; + + /* Make sure we don't get interrupts or tx packets */ + netif_device_detach(cp->dev); + cas_lock_all_save(cp, flags); + + if (cp->opened) { + /* We call cas_spare_recover when we call cas_open. + * but we do not initialize the lists cas_spare_recover + * uses until cas_open is called. + */ + cas_spare_recover(cp, GFP_ATOMIC); + } +#if 1 + /* test => only pending_spare set */ + if (!pending_all && !pending_mtu) + goto done; +#else + if (pending == CAS_RESET_SPARE) + goto done; +#endif + /* when pending == CAS_RESET_ALL, the following + * call to cas_init_hw will restart auto negotiation. + * Setting the second argument of cas_reset to + * !(pending == CAS_RESET_ALL) will set this argument + * to 1 (avoiding reinitializing the PHY for the normal + * PCS case) when auto negotiation is not restarted. + */ +#if 1 + cas_reset(cp, !(pending_all > 0)); + if (cp->opened) + cas_clean_rings(cp); + cas_init_hw(cp, (pending_all > 0)); +#else + cas_reset(cp, !(pending == CAS_RESET_ALL)); + if (cp->opened) + cas_clean_rings(cp); + cas_init_hw(cp, pending == CAS_RESET_ALL); +#endif + +done: + cas_unlock_all_restore(cp, flags); + netif_device_attach(cp->dev); + } +#if 1 + atomic_sub(pending_all, &cp->reset_task_pending_all); + atomic_sub(pending_spare, &cp->reset_task_pending_spare); + atomic_sub(pending_mtu, &cp->reset_task_pending_mtu); + atomic_dec(&cp->reset_task_pending); +#else + atomic_set(&cp->reset_task_pending, 0); +#endif +} + +static void cas_link_timer(unsigned long data) +{ + struct cas *cp = (struct cas *) data; + int mask, pending = 0, reset = 0; + unsigned long flags; + + if (link_transition_timeout != 0 && + cp->link_transition_jiffies_valid && + ((jiffies - cp->link_transition_jiffies) > + (link_transition_timeout))) { + /* One-second counter so link-down workaround doesn't + * cause resets to occur so fast as to fool the switch + * into thinking the link is down. + */ + cp->link_transition_jiffies_valid = 0; + } + + if (!cp->hw_running) + return; + + spin_lock_irqsave(&cp->lock, flags); + cas_lock_tx(cp); + cas_entropy_gather(cp); + + /* If the link task is still pending, we just + * reschedule the link timer + */ +#if 1 + if (atomic_read(&cp->reset_task_pending_all) || + atomic_read(&cp->reset_task_pending_spare) || + atomic_read(&cp->reset_task_pending_mtu)) + goto done; +#else + if (atomic_read(&cp->reset_task_pending)) + goto done; +#endif + + /* check for rx cleaning */ + if ((mask = (cp->cas_flags & CAS_FLAG_RXD_POST_MASK))) { + int i, rmask; + + for (i = 0; i < MAX_RX_DESC_RINGS; i++) { + rmask = CAS_FLAG_RXD_POST(i); + if ((mask & rmask) == 0) + continue; + + /* post_rxds will do a mod_timer */ + if (cas_post_rxds_ringN(cp, i, cp->rx_last[i]) < 0) { + pending = 1; + continue; + } + cp->cas_flags &= ~rmask; + } + } + + if (CAS_PHY_MII(cp->phy_type)) { + u16 bmsr; + cas_mif_poll(cp, 0); + bmsr = cas_phy_read(cp, MII_BMSR); + /* WTZ: Solaris driver reads this twice, but that + * may be due to the PCS case and the use of a + * common implementation. Read it twice here to be + * safe. + */ + bmsr = cas_phy_read(cp, MII_BMSR); + cas_mif_poll(cp, 1); + readl(cp->regs + REG_MIF_STATUS); /* avoid dups */ + reset = cas_mii_link_check(cp, bmsr); + } else { + reset = cas_pcs_link_check(cp); + } + + if (reset) + goto done; + + /* check for tx state machine confusion */ + if ((readl(cp->regs + REG_MAC_TX_STATUS) & MAC_TX_FRAME_XMIT) == 0) { + u32 val = readl(cp->regs + REG_MAC_STATE_MACHINE); + u32 wptr, rptr; + int tlm = CAS_VAL(MAC_SM_TLM, val); + + if (((tlm == 0x5) || (tlm == 0x3)) && + (CAS_VAL(MAC_SM_ENCAP_SM, val) == 0)) { + if (netif_msg_tx_err(cp)) + printk(KERN_DEBUG "%s: tx err: " + "MAC_STATE[%08x]\n", + cp->dev->name, val); + reset = 1; + goto done; + } + + val = readl(cp->regs + REG_TX_FIFO_PKT_CNT); + wptr = readl(cp->regs + REG_TX_FIFO_WRITE_PTR); + rptr = readl(cp->regs + REG_TX_FIFO_READ_PTR); + if ((val == 0) && (wptr != rptr)) { + if (netif_msg_tx_err(cp)) + printk(KERN_DEBUG "%s: tx err: " + "TX_FIFO[%08x:%08x:%08x]\n", + cp->dev->name, val, wptr, rptr); + reset = 1; + } + + if (reset) + cas_hard_reset(cp); + } + +done: + if (reset) { +#if 1 + atomic_inc(&cp->reset_task_pending); + atomic_inc(&cp->reset_task_pending_all); + schedule_work(&cp->reset_task); +#else + atomic_set(&cp->reset_task_pending, CAS_RESET_ALL); + printk(KERN_ERR "reset called in cas_link_timer\n"); + schedule_work(&cp->reset_task); +#endif + } + + if (!pending) + mod_timer(&cp->link_timer, jiffies + CAS_LINK_TIMEOUT); + cas_unlock_tx(cp); + spin_unlock_irqrestore(&cp->lock, flags); +} + +/* tiny buffers are used to avoid target abort issues with + * older cassini's + */ +static void cas_tx_tiny_free(struct cas *cp) +{ + struct pci_dev *pdev = cp->pdev; + int i; + + for (i = 0; i < N_TX_RINGS; i++) { + if (!cp->tx_tiny_bufs[i]) + continue; + + pci_free_consistent(pdev, TX_TINY_BUF_BLOCK, + cp->tx_tiny_bufs[i], + cp->tx_tiny_dvma[i]); + cp->tx_tiny_bufs[i] = NULL; + } +} + +static int cas_tx_tiny_alloc(struct cas *cp) +{ + struct pci_dev *pdev = cp->pdev; + int i; + + for (i = 0; i < N_TX_RINGS; i++) { + cp->tx_tiny_bufs[i] = + pci_alloc_consistent(pdev, TX_TINY_BUF_BLOCK, + &cp->tx_tiny_dvma[i]); + if (!cp->tx_tiny_bufs[i]) { + cas_tx_tiny_free(cp); + return -1; + } + } + return 0; +} + + +static int cas_open(struct net_device *dev) +{ + struct cas *cp = netdev_priv(dev); + int hw_was_up, err; + unsigned long flags; + + down(&cp->pm_sem); + + hw_was_up = cp->hw_running; + + /* The power-management semaphore protects the hw_running + * etc. state so it is safe to do this bit without cp->lock + */ + if (!cp->hw_running) { + /* Reset the chip */ + cas_lock_all_save(cp, flags); + /* We set the second arg to cas_reset to zero + * because cas_init_hw below will have its second + * argument set to non-zero, which will force + * autonegotiation to start. + */ + cas_reset(cp, 0); + cp->hw_running = 1; + cas_unlock_all_restore(cp, flags); + } + + if (cas_tx_tiny_alloc(cp) < 0) + return -ENOMEM; + + /* alloc rx descriptors */ + err = -ENOMEM; + if (cas_alloc_rxds(cp) < 0) + goto err_tx_tiny; + + /* allocate spares */ + cas_spare_init(cp); + cas_spare_recover(cp, GFP_KERNEL); + + /* We can now request the interrupt as we know it's masked + * on the controller. cassini+ has up to 4 interrupts + * that can be used, but you need to do explicit pci interrupt + * mapping to expose them + */ + if (request_irq(cp->pdev->irq, cas_interrupt, + SA_SHIRQ, dev->name, (void *) dev)) { + printk(KERN_ERR "%s: failed to request irq !\n", + cp->dev->name); + err = -EAGAIN; + goto err_spare; + } + + /* init hw */ + cas_lock_all_save(cp, flags); + cas_clean_rings(cp); + cas_init_hw(cp, !hw_was_up); + cp->opened = 1; + cas_unlock_all_restore(cp, flags); + + netif_start_queue(dev); + up(&cp->pm_sem); + return 0; + +err_spare: + cas_spare_free(cp); + cas_free_rxds(cp); +err_tx_tiny: + cas_tx_tiny_free(cp); + up(&cp->pm_sem); + return err; +} + +static int cas_close(struct net_device *dev) +{ + unsigned long flags; + struct cas *cp = netdev_priv(dev); + + /* Make sure we don't get distracted by suspend/resume */ + down(&cp->pm_sem); + + netif_stop_queue(dev); + + /* Stop traffic, mark us closed */ + cas_lock_all_save(cp, flags); + cp->opened = 0; + cas_reset(cp, 0); + cas_phy_init(cp); + cas_begin_auto_negotiation(cp, NULL); + cas_clean_rings(cp); + cas_unlock_all_restore(cp, flags); + + free_irq(cp->pdev->irq, (void *) dev); + cas_spare_free(cp); + cas_free_rxds(cp); + cas_tx_tiny_free(cp); + up(&cp->pm_sem); + return 0; +} + +static struct { + const char name[ETH_GSTRING_LEN]; +} ethtool_cassini_statnames[] = { + {"collisions"}, + {"rx_bytes"}, + {"rx_crc_errors"}, + {"rx_dropped"}, + {"rx_errors"}, + {"rx_fifo_errors"}, + {"rx_frame_errors"}, + {"rx_length_errors"}, + {"rx_over_errors"}, + {"rx_packets"}, + {"tx_aborted_errors"}, + {"tx_bytes"}, + {"tx_dropped"}, + {"tx_errors"}, + {"tx_fifo_errors"}, + {"tx_packets"} +}; +#define CAS_NUM_STAT_KEYS (sizeof(ethtool_cassini_statnames)/ETH_GSTRING_LEN) + +static struct { + const int offsets; /* neg. values for 2nd arg to cas_read_phy */ +} ethtool_register_table[] = { + {-MII_BMSR}, + {-MII_BMCR}, + {REG_CAWR}, + {REG_INF_BURST}, + {REG_BIM_CFG}, + {REG_RX_CFG}, + {REG_HP_CFG}, + {REG_MAC_TX_CFG}, + {REG_MAC_RX_CFG}, + {REG_MAC_CTRL_CFG}, + {REG_MAC_XIF_CFG}, + {REG_MIF_CFG}, + {REG_PCS_CFG}, + {REG_SATURN_PCFG}, + {REG_PCS_MII_STATUS}, + {REG_PCS_STATE_MACHINE}, + {REG_MAC_COLL_EXCESS}, + {REG_MAC_COLL_LATE} +}; +#define CAS_REG_LEN (sizeof(ethtool_register_table)/sizeof(int)) +#define CAS_MAX_REGS (sizeof (u32)*CAS_REG_LEN) + +static u8 *cas_get_regs(struct cas *cp) +{ + u8 *ptr = kmalloc(CAS_MAX_REGS, GFP_KERNEL); + u8 *p; + int i; + unsigned long flags; + + if (!ptr) + return NULL; + + spin_lock_irqsave(&cp->lock, flags); + for (i = 0, p = ptr; i < CAS_REG_LEN ; i ++, p += sizeof(u32)) { + u16 hval; + u32 val; + if (ethtool_register_table[i].offsets < 0) { + hval = cas_phy_read(cp, + -ethtool_register_table[i].offsets); + val = hval; + } else { + val= readl(cp->regs+ethtool_register_table[i].offsets); + } + memcpy(p, (u8 *)&val, sizeof(u32)); + } + spin_unlock_irqrestore(&cp->lock, flags); + + return ptr; +} + +static struct net_device_stats *cas_get_stats(struct net_device *dev) +{ + struct cas *cp = netdev_priv(dev); + struct net_device_stats *stats = cp->net_stats; + unsigned long flags; + int i; + unsigned long tmp; + + /* we collate all of the stats into net_stats[N_TX_RING] */ + if (!cp->hw_running) + return stats + N_TX_RINGS; + + /* collect outstanding stats */ + /* WTZ: the Cassini spec gives these as 16 bit counters but + * stored in 32-bit words. Added a mask of 0xffff to be safe, + * in case the chip somehow puts any garbage in the other bits. + * Also, counter usage didn't seem to mach what Adrian did + * in the parts of the code that set these quantities. Made + * that consistent. + */ + spin_lock_irqsave(&cp->stat_lock[N_TX_RINGS], flags); + stats[N_TX_RINGS].rx_crc_errors += + readl(cp->regs + REG_MAC_FCS_ERR) & 0xffff; + stats[N_TX_RINGS].rx_frame_errors += + readl(cp->regs + REG_MAC_ALIGN_ERR) &0xffff; + stats[N_TX_RINGS].rx_length_errors += + readl(cp->regs + REG_MAC_LEN_ERR) & 0xffff; +#if 1 + tmp = (readl(cp->regs + REG_MAC_COLL_EXCESS) & 0xffff) + + (readl(cp->regs + REG_MAC_COLL_LATE) & 0xffff); + stats[N_TX_RINGS].tx_aborted_errors += tmp; + stats[N_TX_RINGS].collisions += + tmp + (readl(cp->regs + REG_MAC_COLL_NORMAL) & 0xffff); +#else + stats[N_TX_RINGS].tx_aborted_errors += + readl(cp->regs + REG_MAC_COLL_EXCESS); + stats[N_TX_RINGS].collisions += readl(cp->regs + REG_MAC_COLL_EXCESS) + + readl(cp->regs + REG_MAC_COLL_LATE); +#endif + cas_clear_mac_err(cp); + + /* saved bits that are unique to ring 0 */ + spin_lock(&cp->stat_lock[0]); + stats[N_TX_RINGS].collisions += stats[0].collisions; + stats[N_TX_RINGS].rx_over_errors += stats[0].rx_over_errors; + stats[N_TX_RINGS].rx_frame_errors += stats[0].rx_frame_errors; + stats[N_TX_RINGS].rx_fifo_errors += stats[0].rx_fifo_errors; + stats[N_TX_RINGS].tx_aborted_errors += stats[0].tx_aborted_errors; + stats[N_TX_RINGS].tx_fifo_errors += stats[0].tx_fifo_errors; + spin_unlock(&cp->stat_lock[0]); + + for (i = 0; i < N_TX_RINGS; i++) { + spin_lock(&cp->stat_lock[i]); + stats[N_TX_RINGS].rx_length_errors += + stats[i].rx_length_errors; + stats[N_TX_RINGS].rx_crc_errors += stats[i].rx_crc_errors; + stats[N_TX_RINGS].rx_packets += stats[i].rx_packets; + stats[N_TX_RINGS].tx_packets += stats[i].tx_packets; + stats[N_TX_RINGS].rx_bytes += stats[i].rx_bytes; + stats[N_TX_RINGS].tx_bytes += stats[i].tx_bytes; + stats[N_TX_RINGS].rx_errors += stats[i].rx_errors; + stats[N_TX_RINGS].tx_errors += stats[i].tx_errors; + stats[N_TX_RINGS].rx_dropped += stats[i].rx_dropped; + stats[N_TX_RINGS].tx_dropped += stats[i].tx_dropped; + memset(stats + i, 0, sizeof(struct net_device_stats)); + spin_unlock(&cp->stat_lock[i]); + } + spin_unlock_irqrestore(&cp->stat_lock[N_TX_RINGS], flags); + return stats + N_TX_RINGS; +} + + +static void cas_set_multicast(struct net_device *dev) +{ + struct cas *cp = netdev_priv(dev); + u32 rxcfg, rxcfg_new; + unsigned long flags; + int limit = STOP_TRIES; + + if (!cp->hw_running) + return; + + spin_lock_irqsave(&cp->lock, flags); + rxcfg = readl(cp->regs + REG_MAC_RX_CFG); + + /* disable RX MAC and wait for completion */ + writel(rxcfg & ~MAC_RX_CFG_EN, cp->regs + REG_MAC_RX_CFG); + while (readl(cp->regs + REG_MAC_RX_CFG) & MAC_RX_CFG_EN) { + if (!limit--) + break; + udelay(10); + } + + /* disable hash filter and wait for completion */ + limit = STOP_TRIES; + rxcfg &= ~(MAC_RX_CFG_PROMISC_EN | MAC_RX_CFG_HASH_FILTER_EN); + writel(rxcfg & ~MAC_RX_CFG_EN, cp->regs + REG_MAC_RX_CFG); + while (readl(cp->regs + REG_MAC_RX_CFG) & MAC_RX_CFG_HASH_FILTER_EN) { + if (!limit--) + break; + udelay(10); + } + + /* program hash filters */ + cp->mac_rx_cfg = rxcfg_new = cas_setup_multicast(cp); + rxcfg |= rxcfg_new; + writel(rxcfg, cp->regs + REG_MAC_RX_CFG); + spin_unlock_irqrestore(&cp->lock, flags); +} + +/* Eventually add support for changing the advertisement + * on autoneg. + */ +static int cas_ethtool_ioctl(struct net_device *dev, void *ep_user) +{ + struct cas *cp = netdev_priv(dev); + u16 bmcr; + int full_duplex, speed, pause; + struct ethtool_cmd ecmd; + unsigned long flags; + enum link_state linkstate = link_up; + + if (copy_from_user(&ecmd, ep_user, sizeof(ecmd))) + return -EFAULT; + + switch(ecmd.cmd) { + case ETHTOOL_GDRVINFO: { + struct ethtool_drvinfo info = { cmd: ETHTOOL_GDRVINFO }; + + strncpy(info.driver, DRV_MODULE_NAME, + ETHTOOL_BUSINFO_LEN); + strncpy(info.version, DRV_MODULE_VERSION, + ETHTOOL_BUSINFO_LEN); + info.fw_version[0] = '\0'; + strncpy(info.bus_info, pci_name(cp->pdev), + ETHTOOL_BUSINFO_LEN); + info.regdump_len = cp->casreg_len < CAS_MAX_REGS ? + cp->casreg_len : CAS_MAX_REGS; + info.n_stats = CAS_NUM_STAT_KEYS; + if (copy_to_user(ep_user, &info, sizeof(info))) + return -EFAULT; + + return 0; + } + + case ETHTOOL_GSET: + ecmd.advertising = 0; + ecmd.supported = SUPPORTED_Autoneg; + if (cp->cas_flags & CAS_FLAG_1000MB_CAP) { + ecmd.supported |= SUPPORTED_1000baseT_Full; + ecmd.advertising |= ADVERTISED_1000baseT_Full; + } + + /* Record PHY settings if HW is on. */ + spin_lock_irqsave(&cp->lock, flags); + bmcr = 0; + linkstate = cp->lstate; + if (CAS_PHY_MII(cp->phy_type)) { + ecmd.port = PORT_MII; + ecmd.transceiver = (cp->cas_flags & CAS_FLAG_SATURN) ? + XCVR_INTERNAL : XCVR_EXTERNAL; + ecmd.phy_address = cp->phy_addr; + ecmd.advertising |= ADVERTISED_TP | ADVERTISED_MII | + ADVERTISED_10baseT_Half | + ADVERTISED_10baseT_Full | + ADVERTISED_100baseT_Half | + ADVERTISED_100baseT_Full; + + ecmd.supported |= + (SUPPORTED_10baseT_Half | + SUPPORTED_10baseT_Full | + SUPPORTED_100baseT_Half | + SUPPORTED_100baseT_Full | + SUPPORTED_TP | SUPPORTED_MII); + + if (cp->hw_running) { + cas_mif_poll(cp, 0); + bmcr = cas_phy_read(cp, MII_BMCR); + cas_read_mii_link_mode(cp, &full_duplex, + &speed, &pause); + cas_mif_poll(cp, 1); + } + + } else { + ecmd.port = PORT_FIBRE; + ecmd.transceiver = XCVR_INTERNAL; + ecmd.phy_address = 0; + ecmd.supported |= SUPPORTED_FIBRE; + ecmd.advertising |= ADVERTISED_FIBRE; + + if (cp->hw_running) { + /* pcs uses the same bits as mii */ + bmcr = readl(cp->regs + REG_PCS_MII_CTRL); + cas_read_pcs_link_mode(cp, &full_duplex, + &speed, &pause); + } + } + spin_unlock_irqrestore(&cp->lock, flags); + + if (bmcr & BMCR_ANENABLE) { + ecmd.advertising |= ADVERTISED_Autoneg; + ecmd.autoneg = AUTONEG_ENABLE; + ecmd.speed = ((speed == 10) ? + SPEED_10 : + ((speed == 1000) ? + SPEED_1000 : SPEED_100)); + ecmd.duplex = full_duplex ? DUPLEX_FULL : DUPLEX_HALF; + } else { + ecmd.autoneg = AUTONEG_DISABLE; + ecmd.speed = + (bmcr & CAS_BMCR_SPEED1000) ? + SPEED_1000 : + ((bmcr & BMCR_SPEED100) ? SPEED_100: + SPEED_10); + ecmd.duplex = + (bmcr & BMCR_FULLDPLX) ? + DUPLEX_FULL : DUPLEX_HALF; + } + if (linkstate != link_up) { + /* Force these to "unknown" if the link is not up and + * autonogotiation in enabled. We can set the link + * speed to 0, but not ecmd.duplex, + * because its legal values are 0 and 1. Ethtool will + * print the value reported in parentheses after the + * word "Unknown" for unrecognized values. + * + * If in forced mode, we report the speed and duplex + * settings that we configured. + */ + if (cp->link_cntl & BMCR_ANENABLE) { + ecmd.speed = 0; + ecmd.duplex = 0xff; + } else { + ecmd.speed = SPEED_10; + if (cp->link_cntl & BMCR_SPEED100) { + ecmd.speed = SPEED_100; + } else if (cp->link_cntl & CAS_BMCR_SPEED1000) { + ecmd.speed = SPEED_1000; + } + ecmd.duplex = (cp->link_cntl & BMCR_FULLDPLX)? + DUPLEX_FULL : DUPLEX_HALF; + } + } + if (copy_to_user(ep_user, &ecmd, sizeof(ecmd))) + return -EFAULT; + return 0; + + case ETHTOOL_SSET: + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + + /* Verify the settings we care about. */ + if (ecmd.autoneg != AUTONEG_ENABLE && + ecmd.autoneg != AUTONEG_DISABLE) + return -EINVAL; + + if (ecmd.autoneg == AUTONEG_DISABLE && + ((ecmd.speed != SPEED_1000 && + ecmd.speed != SPEED_100 && + ecmd.speed != SPEED_10) || + (ecmd.duplex != DUPLEX_HALF && + ecmd.duplex != DUPLEX_FULL))) + return -EINVAL; + + /* Apply settings and restart link process. */ + spin_lock_irqsave(&cp->lock, flags); + cas_begin_auto_negotiation(cp, &ecmd); + spin_unlock_irqrestore(&cp->lock, flags); + return 0; + + case ETHTOOL_NWAY_RST: + if ((cp->link_cntl & BMCR_ANENABLE) == 0) + return -EINVAL; + + /* Restart link process. */ + spin_lock_irqsave(&cp->lock, flags); + cas_begin_auto_negotiation(cp, NULL); + spin_unlock_irqrestore(&cp->lock, flags); + + return 0; + + case ETHTOOL_GWOL: + case ETHTOOL_SWOL: + break; /* doesn't exist */ + + /* get link status */ + case ETHTOOL_GLINK: { + struct ethtool_value edata = { cmd: ETHTOOL_GLINK }; + + edata.data = (cp->lstate == link_up); + if (copy_to_user(ep_user, &edata, sizeof(edata))) + return -EFAULT; + return 0; + } + + /* get message-level */ + case ETHTOOL_GMSGLVL: { + struct ethtool_value edata = { cmd: ETHTOOL_GMSGLVL }; + + edata.data = cp->msg_enable; + if (copy_to_user(ep_user, &edata, sizeof(edata))) + return -EFAULT; + return 0; + } + + /* set message-level */ + case ETHTOOL_SMSGLVL: { + struct ethtool_value edata; + + if (!capable(CAP_NET_ADMIN)) { + return (-EPERM); + } + if (copy_from_user(&edata, ep_user, sizeof(edata))) + return -EFAULT; + cp->msg_enable = edata.data; + return 0; + } + + case ETHTOOL_GREGS: { + struct ethtool_regs edata; + u8 *ptr; + int len = cp->casreg_len < CAS_MAX_REGS ? + cp->casreg_len: CAS_MAX_REGS; + + if (copy_from_user(&edata, ep_user, sizeof (edata))) + return -EFAULT; + + if (edata.len > len) + edata.len = len; + edata.version = 0; + if (copy_to_user (ep_user, &edata, sizeof(edata))) + return -EFAULT; + + /* cas_get_regs handles locks (cp->lock). */ + ptr = cas_get_regs(cp); + if (ptr == NULL) + return -ENOMEM; + if (copy_to_user(ep_user + sizeof (edata), ptr, edata.len)) + return -EFAULT; + + kfree(ptr); + return (0); + } + case ETHTOOL_GSTRINGS: { + struct ethtool_gstrings edata; + int len; + + if (copy_from_user(&edata, ep_user, sizeof(edata))) + return -EFAULT; + + len = edata.len; + switch(edata.string_set) { + case ETH_SS_STATS: + edata.len = (len < CAS_NUM_STAT_KEYS) ? + len : CAS_NUM_STAT_KEYS; + if (copy_to_user(ep_user, &edata, sizeof(edata))) + return -EFAULT; + + if (copy_to_user(ep_user + sizeof(edata), + ðtool_cassini_statnames, + (edata.len * ETH_GSTRING_LEN))) + return -EFAULT; + return 0; + default: + return -EINVAL; + } + } + case ETHTOOL_GSTATS: { + int i = 0; + u64 *tmp; + struct ethtool_stats edata; + struct net_device_stats *stats; + int len; + + if (copy_from_user(&edata, ep_user, sizeof(edata))) + return -EFAULT; + + len = edata.n_stats; + stats = cas_get_stats(cp->dev); + edata.cmd = ETHTOOL_GSTATS; + edata.n_stats = (len < CAS_NUM_STAT_KEYS) ? + len : CAS_NUM_STAT_KEYS; + if (copy_to_user(ep_user, &edata, sizeof (edata))) + return -EFAULT; + + tmp = kmalloc(sizeof(u64)*CAS_NUM_STAT_KEYS, GFP_KERNEL); + if (tmp) { + tmp[i++] = stats->collisions; + tmp[i++] = stats->rx_bytes; + tmp[i++] = stats->rx_crc_errors; + tmp[i++] = stats->rx_dropped; + tmp[i++] = stats->rx_errors; + tmp[i++] = stats->rx_fifo_errors; + tmp[i++] = stats->rx_frame_errors; + tmp[i++] = stats->rx_length_errors; + tmp[i++] = stats->rx_over_errors; + tmp[i++] = stats->rx_packets; + tmp[i++] = stats->tx_aborted_errors; + tmp[i++] = stats->tx_bytes; + tmp[i++] = stats->tx_dropped; + tmp[i++] = stats->tx_errors; + tmp[i++] = stats->tx_fifo_errors; + tmp[i++] = stats->tx_packets; + BUG_ON(i != CAS_NUM_STAT_KEYS); + + i = copy_to_user(ep_user + sizeof(edata), + tmp, sizeof(u64)*edata.n_stats); + kfree(tmp); + } else { + return -ENOMEM; + } + if (i) + return -EFAULT; + return 0; + } + } + + return -EOPNOTSUPP; +} + +static int cas_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) +{ + struct cas *cp = netdev_priv(dev); + struct mii_ioctl_data *data = (struct mii_ioctl_data *)&ifr->ifr_data; + unsigned long flags; + int rc = -EOPNOTSUPP; + + /* Hold the PM semaphore while doing ioctl's or we may collide + * with open/close and power management and oops. + */ + down(&cp->pm_sem); + switch (cmd) { + case SIOCETHTOOL: + rc = cas_ethtool_ioctl(dev, ifr->ifr_data); + break; + + case SIOCGMIIPHY: /* Get address of MII PHY in use. */ + data->phy_id = cp->phy_addr; + /* Fallthrough... */ + + case SIOCGMIIREG: /* Read MII PHY register. */ + spin_lock_irqsave(&cp->lock, flags); + cas_mif_poll(cp, 0); + data->val_out = cas_phy_read(cp, data->reg_num & 0x1f); + cas_mif_poll(cp, 1); + spin_unlock_irqrestore(&cp->lock, flags); + rc = 0; + break; + + case SIOCSMIIREG: /* Write MII PHY register. */ + if (!capable(CAP_NET_ADMIN)) { + rc = -EPERM; + break; + } + spin_lock_irqsave(&cp->lock, flags); + cas_mif_poll(cp, 0); + rc = cas_phy_write(cp, data->reg_num & 0x1f, data->val_in); + cas_mif_poll(cp, 1); + spin_unlock_irqrestore(&cp->lock, flags); + break; + default: + break; + }; + + up(&cp->pm_sem); + return rc; +} + +static int __devinit cas_init_one(struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + static int cas_version_printed = 0; + unsigned long casreg_base, casreg_len; + struct net_device *dev; + struct cas *cp; + int i, err, pci_using_dac; + u16 pci_cmd; + u8 orig_cacheline_size = 0, cas_cacheline_size = 0; + + if (cas_version_printed++ == 0) + printk(KERN_INFO "%s", version); + + err = pci_enable_device(pdev); + if (err) { + printk(KERN_ERR PFX "Cannot enable PCI device, " + "aborting.\n"); + return err; + } + + if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { + printk(KERN_ERR PFX "Cannot find proper PCI device " + "base address, aborting.\n"); + err = -ENODEV; + goto err_out_disable_pdev; + } + + dev = alloc_etherdev(sizeof(*cp)); + if (!dev) { + printk(KERN_ERR PFX "Etherdev alloc failed, aborting.\n"); + err = -ENOMEM; + goto err_out_disable_pdev; + } + SET_MODULE_OWNER(dev); + SET_NETDEV_DEV(dev, &pdev->dev); + + err = pci_request_regions(pdev, dev->name); + if (err) { + printk(KERN_ERR PFX "Cannot obtain PCI resources, " + "aborting.\n"); + goto err_out_free_netdev; + } + pci_set_master(pdev); + + /* we must always turn on parity response or else parity + * doesn't get generated properly. disable SERR/PERR as well. + * in addition, we want to turn MWI on. + */ + pci_read_config_word(pdev, PCI_COMMAND, &pci_cmd); + pci_cmd &= ~PCI_COMMAND_SERR; + pci_cmd |= PCI_COMMAND_PARITY; + pci_write_config_word(pdev, PCI_COMMAND, pci_cmd); + pci_set_mwi(pdev); + /* + * On some architectures, the default cache line size set + * by pci_set_mwi reduces perforamnce. We have to increase + * it for this case. To start, we'll print some configuration + * data. + */ +#if 1 + pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, + &orig_cacheline_size); + if (orig_cacheline_size < CAS_PREF_CACHELINE_SIZE) { + cas_cacheline_size = + (CAS_PREF_CACHELINE_SIZE < SMP_CACHE_BYTES) ? + CAS_PREF_CACHELINE_SIZE : SMP_CACHE_BYTES; + if (pci_write_config_byte(pdev, + PCI_CACHE_LINE_SIZE, + cas_cacheline_size)) { + printk(KERN_ERR PFX "Could not set PCI cache " + "line size\n"); + goto err_write_cacheline; + } + } +#endif + + + /* Configure DMA attributes. */ + if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)) { + pci_using_dac = 1; + err = pci_set_consistent_dma_mask(pdev, + DMA_64BIT_MASK); + if (err < 0) { + printk(KERN_ERR PFX "Unable to obtain 64-bit DMA " + "for consistent allocations\n"); + goto err_out_free_res; + } + + } else { + err = pci_set_dma_mask(pdev, DMA_32BIT_MASK); + if (err) { + printk(KERN_ERR PFX "No usable DMA configuration, " + "aborting.\n"); + goto err_out_free_res; + } + pci_using_dac = 0; + } + + casreg_base = pci_resource_start(pdev, 0); + casreg_len = pci_resource_len(pdev, 0); + + cp = netdev_priv(dev); + cp->pdev = pdev; +#if 1 + /* A value of 0 indicates we never explicitly set it */ + cp->orig_cacheline_size = cas_cacheline_size ? orig_cacheline_size: 0; +#endif + cp->dev = dev; + cp->msg_enable = (cassini_debug < 0) ? CAS_DEF_MSG_ENABLE : + cassini_debug; + + cp->link_transition = LINK_TRANSITION_UNKNOWN; + cp->link_transition_jiffies_valid = 0; + + spin_lock_init(&cp->lock); + spin_lock_init(&cp->rx_inuse_lock); + spin_lock_init(&cp->rx_spare_lock); + for (i = 0; i < N_TX_RINGS; i++) { + spin_lock_init(&cp->stat_lock[i]); + spin_lock_init(&cp->tx_lock[i]); + } + spin_lock_init(&cp->stat_lock[N_TX_RINGS]); + init_MUTEX(&cp->pm_sem); + + init_timer(&cp->link_timer); + cp->link_timer.function = cas_link_timer; + cp->link_timer.data = (unsigned long) cp; + +#if 1 + /* Just in case the implementation of atomic operations + * change so that an explicit initialization is necessary. + */ + atomic_set(&cp->reset_task_pending, 0); + atomic_set(&cp->reset_task_pending_all, 0); + atomic_set(&cp->reset_task_pending_spare, 0); + atomic_set(&cp->reset_task_pending_mtu, 0); +#endif + INIT_WORK(&cp->reset_task, cas_reset_task, cp); + + /* Default link parameters */ + if (link_mode >= 0 && link_mode <= 6) + cp->link_cntl = link_modes[link_mode]; + else + cp->link_cntl = BMCR_ANENABLE; + cp->lstate = link_down; + cp->link_transition = LINK_TRANSITION_LINK_DOWN; + netif_carrier_off(cp->dev); + cp->timer_ticks = 0; + + /* give us access to cassini registers */ + cp->regs = ioremap(casreg_base, casreg_len); + if (cp->regs == 0UL) { + printk(KERN_ERR PFX "Cannot map device registers, " + "aborting.\n"); + goto err_out_free_res; + } + cp->casreg_len = casreg_len; + + pci_save_state(pdev); + cas_check_pci_invariants(cp); + cas_hard_reset(cp); + cas_reset(cp, 0); + if (cas_check_invariants(cp)) + goto err_out_iounmap; + + cp->init_block = (struct cas_init_block *) + pci_alloc_consistent(pdev, sizeof(struct cas_init_block), + &cp->block_dvma); + if (!cp->init_block) { + printk(KERN_ERR PFX "Cannot allocate init block, " + "aborting.\n"); + goto err_out_iounmap; + } + + for (i = 0; i < N_TX_RINGS; i++) + cp->init_txds[i] = cp->init_block->txds[i]; + + for (i = 0; i < N_RX_DESC_RINGS; i++) + cp->init_rxds[i] = cp->init_block->rxds[i]; + + for (i = 0; i < N_RX_COMP_RINGS; i++) + cp->init_rxcs[i] = cp->init_block->rxcs[i]; + + for (i = 0; i < N_RX_FLOWS; i++) + skb_queue_head_init(&cp->rx_flows[i]); + + dev->open = cas_open; + dev->stop = cas_close; + dev->hard_start_xmit = cas_start_xmit; + dev->get_stats = cas_get_stats; + dev->set_multicast_list = cas_set_multicast; + dev->do_ioctl = cas_ioctl; + dev->tx_timeout = cas_tx_timeout; + dev->watchdog_timeo = CAS_TX_TIMEOUT; + dev->change_mtu = cas_change_mtu; +#ifdef USE_NAPI + dev->poll = cas_poll; + dev->weight = 64; +#endif +#ifdef CONFIG_NET_POLL_CONTROLLER + dev->poll_controller = cas_netpoll; +#endif + dev->irq = pdev->irq; + dev->dma = 0; + + /* Cassini features. */ + if ((cp->cas_flags & CAS_FLAG_NO_HW_CSUM) == 0) + dev->features |= NETIF_F_HW_CSUM | NETIF_F_SG; + + if (pci_using_dac) + dev->features |= NETIF_F_HIGHDMA; + + if (register_netdev(dev)) { + printk(KERN_ERR PFX "Cannot register net device, " + "aborting.\n"); + goto err_out_free_consistent; + } + + i = readl(cp->regs + REG_BIM_CFG); + printk(KERN_INFO "%s: Sun Cassini%s (%sbit/%sMHz PCI/%s) " + "Ethernet[%d] ", dev->name, + (cp->cas_flags & CAS_FLAG_REG_PLUS) ? "+" : "", + (i & BIM_CFG_32BIT) ? "32" : "64", + (i & BIM_CFG_66MHZ) ? "66" : "33", + (cp->phy_type == CAS_PHY_SERDES) ? "Fi" : "Cu", pdev->irq); + + for (i = 0; i < 6; i++) + printk("%2.2x%c", dev->dev_addr[i], + i == 5 ? ' ' : ':'); + printk("\n"); + + pci_set_drvdata(pdev, dev); + cp->hw_running = 1; + cas_entropy_reset(cp); + cas_phy_init(cp); + cas_begin_auto_negotiation(cp, NULL); + return 0; + +err_out_free_consistent: + pci_free_consistent(pdev, sizeof(struct cas_init_block), + cp->init_block, cp->block_dvma); + +err_out_iounmap: + down(&cp->pm_sem); + if (cp->hw_running) + cas_shutdown(cp); + up(&cp->pm_sem); + + iounmap((void *) cp->regs); + + +err_out_free_res: + pci_release_regions(pdev); + +err_write_cacheline: + /* Try to restore it in case the error occured after we + * set it. + */ + pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, orig_cacheline_size); + +err_out_free_netdev: + free_netdev(dev); + +err_out_disable_pdev: + pci_disable_device(pdev); + pci_set_drvdata(pdev, NULL); + return -ENODEV; +} + +static void __devexit cas_remove_one(struct pci_dev *pdev) +{ + struct net_device *dev = pci_get_drvdata(pdev); + struct cas *cp; + if (!dev) + return; + + cp = netdev_priv(dev); + unregister_netdev(dev); + + down(&cp->pm_sem); + flush_scheduled_work(); + if (cp->hw_running) + cas_shutdown(cp); + up(&cp->pm_sem); + +#if 1 + if (cp->orig_cacheline_size) { + /* Restore the cache line size if we had modified + * it. + */ + pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, + cp->orig_cacheline_size); + } +#endif + pci_free_consistent(pdev, sizeof(struct cas_init_block), + cp->init_block, cp->block_dvma); + iounmap((void *) cp->regs); + free_netdev(dev); + pci_release_regions(pdev); + pci_disable_device(pdev); + pci_set_drvdata(pdev, NULL); +} + +#ifdef CONFIG_PM +static int cas_suspend(struct pci_dev *pdev, u32 state) +{ + struct net_device *dev = pci_get_drvdata(pdev); + struct cas *cp = netdev_priv(dev); + unsigned long flags; + + /* We hold the PM semaphore during entire driver + * sleep time + */ + down(&cp->pm_sem); + + /* If the driver is opened, we stop the DMA */ + if (cp->opened) { + netif_device_detach(dev); + + cas_lock_all_save(cp, flags); + + /* We can set the second arg of cas_reset to 0 + * because on resume, we'll call cas_init_hw with + * its second arg set so that autonegotiation is + * restarted. + */ + cas_reset(cp, 0); + cas_clean_rings(cp); + cas_unlock_all_restore(cp, flags); + } + + if (cp->hw_running) + cas_shutdown(cp); + + return 0; +} + +static int cas_resume(struct pci_dev *pdev) +{ + struct net_device *dev = pci_get_drvdata(pdev); + struct cas *cp = netdev_priv(dev); + + printk(KERN_INFO "%s: resuming\n", dev->name); + + cas_hard_reset(cp); + if (cp->opened) { + unsigned long flags; + cas_lock_all_save(cp, flags); + cas_reset(cp, 0); + cp->hw_running = 1; + cas_clean_rings(cp); + cas_init_hw(cp, 1); + cas_unlock_all_restore(cp, flags); + + netif_device_attach(dev); + } + up(&cp->pm_sem); + return 0; +} +#endif /* CONFIG_PM */ + +static struct pci_driver cas_driver = { + .name = DRV_MODULE_NAME, + .id_table = cas_pci_tbl, + .probe = cas_init_one, + .remove = __devexit_p(cas_remove_one), +#ifdef CONFIG_PM + .suspend = cas_suspend, + .resume = cas_resume +#endif +}; + +static int __init cas_init(void) +{ + if (linkdown_timeout > 0) + link_transition_timeout = linkdown_timeout * HZ; + else + link_transition_timeout = 0; + + return pci_module_init(&cas_driver); +} + +static void __exit cas_cleanup(void) +{ + pci_unregister_driver(&cas_driver); +} + +module_init(cas_init); +module_exit(cas_cleanup); diff --git a/drivers/net/cassini.h b/drivers/net/cassini.h new file mode 100644 index 000000000000..88063ef16cf6 --- /dev/null +++ b/drivers/net/cassini.h @@ -0,0 +1,4425 @@ +/* $Id: cassini.h,v 1.16 2004/08/17 21:15:16 zaumen Exp $ + * cassini.h: Definitions for Sun Microsystems Cassini(+) ethernet driver. + * + * Copyright (C) 2004 Sun Microsystems Inc. + * Copyright (c) 2003 Adrian Sun (asun@darksunrising.com) + * + * 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. + * + * vendor id: 0x108E (Sun Microsystems, Inc.) + * device id: 0xabba (Cassini) + * revision ids: 0x01 = Cassini + * 0x02 = Cassini rev 2 + * 0x10 = Cassini+ + * 0x11 = Cassini+ 0.2u + * + * vendor id: 0x100b (National Semiconductor) + * device id: 0x0035 (DP83065/Saturn) + * revision ids: 0x30 = Saturn B2 + * + * rings are all offset from 0. + * + * there are two clock domains: + * PCI: 33/66MHz clock + * chip: 125MHz clock + */ + +#ifndef _CASSINI_H +#define _CASSINI_H + +/* cassini register map: 2M memory mapped in 32-bit memory space accessible as + * 32-bit words. there is no i/o port access. REG_ addresses are + * shared between cassini and cassini+. REG_PLUS_ addresses only + * appear in cassini+. REG_MINUS_ addresses only appear in cassini. + */ +#define CAS_ID_REV2 0x02 +#define CAS_ID_REVPLUS 0x10 +#define CAS_ID_REVPLUS02u 0x11 +#define CAS_ID_REVSATURNB2 0x30 + +/** global resources **/ + +/* this register sets the weights for the weighted round robin arbiter. e.g., + * if rx weight == 1 and tx weight == 0, rx == 2x tx transfer credit + * for its next turn to access the pci bus. + * map: 0x0 = x1, 0x1 = x2, 0x2 = x4, 0x3 = x8 + * DEFAULT: 0x0, SIZE: 5 bits + */ +#define REG_CAWR 0x0004 /* core arbitration weight */ +#define CAWR_RX_DMA_WEIGHT_SHIFT 0 +#define CAWR_RX_DMA_WEIGHT_MASK 0x03 /* [0:1] */ +#define CAWR_TX_DMA_WEIGHT_SHIFT 2 +#define CAWR_TX_DMA_WEIGHT_MASK 0x0C /* [3:2] */ +#define CAWR_RR_DIS 0x10 /* [4] */ + +/* if enabled, BIM can send bursts across PCI bus > cacheline size. burst + * sizes determined by length of packet or descriptor transfer and the + * max length allowed by the target. + * DEFAULT: 0x0, SIZE: 1 bit + */ +#define REG_INF_BURST 0x0008 /* infinite burst enable reg */ +#define INF_BURST_EN 0x1 /* enable */ + +/* top level interrupts [0-9] are auto-cleared to 0 when the status + * register is read. second level interrupts [13 - 18] are cleared at + * the source. tx completion register 3 is replicated in [19 - 31] + * DEFAULT: 0x00000000, SIZE: 29 bits + */ +#define REG_INTR_STATUS 0x000C /* interrupt status register */ +#define INTR_TX_INTME 0x00000001 /* frame w/ INT ME desc bit set + xferred from host queue to + TX FIFO */ +#define INTR_TX_ALL 0x00000002 /* all xmit frames xferred into + TX FIFO. i.e., + TX Kick == TX complete. if + PACED_MODE set, then TX FIFO + also empty */ +#define INTR_TX_DONE 0x00000004 /* any frame xferred into tx + FIFO */ +#define INTR_TX_TAG_ERROR 0x00000008 /* TX FIFO tag framing + corrupted. FATAL ERROR */ +#define INTR_RX_DONE 0x00000010 /* at least 1 frame xferred + from RX FIFO to host mem. + RX completion reg updated. + may be delayed by recv + intr blanking. */ +#define INTR_RX_BUF_UNAVAIL 0x00000020 /* no more receive buffers. + RX Kick == RX complete */ +#define INTR_RX_TAG_ERROR 0x00000040 /* RX FIFO tag framing + corrupted. FATAL ERROR */ +#define INTR_RX_COMP_FULL 0x00000080 /* no more room in completion + ring to post descriptors. + RX complete head incr to + almost reach RX complete + tail */ +#define INTR_RX_BUF_AE 0x00000100 /* less than the + programmable threshold # + of free descr avail for + hw use */ +#define INTR_RX_COMP_AF 0x00000200 /* less than the + programmable threshold # + of descr spaces for hw + use in completion descr + ring */ +#define INTR_RX_LEN_MISMATCH 0x00000400 /* len field from MAC != + len of non-reassembly pkt + from fifo during DMA or + header parser provides TCP + header and payload size > + MAC packet size. + FATAL ERROR */ +#define INTR_SUMMARY 0x00001000 /* summary interrupt bit. this + bit will be set if an interrupt + generated on the pci bus. useful + when driver is polling for + interrupts */ +#define INTR_PCS_STATUS 0x00002000 /* PCS interrupt status register */ +#define INTR_TX_MAC_STATUS 0x00004000 /* TX MAC status register has at + least 1 unmasked interrupt set */ +#define INTR_RX_MAC_STATUS 0x00008000 /* RX MAC status register has at + least 1 unmasked interrupt set */ +#define INTR_MAC_CTRL_STATUS 0x00010000 /* MAC control status register has + at least 1 unmasked interrupt + set */ +#define INTR_MIF_STATUS 0x00020000 /* MIF status register has at least + 1 unmasked interrupt set */ +#define INTR_PCI_ERROR_STATUS 0x00040000 /* PCI error status register in the + BIF has at least 1 unmasked + interrupt set */ +#define INTR_TX_COMP_3_MASK 0xFFF80000 /* mask for TX completion + 3 reg data */ +#define INTR_TX_COMP_3_SHIFT 19 +#define INTR_ERROR_MASK (INTR_MIF_STATUS | INTR_PCI_ERROR_STATUS | \ + INTR_PCS_STATUS | INTR_RX_LEN_MISMATCH | \ + INTR_TX_MAC_STATUS | INTR_RX_MAC_STATUS | \ + INTR_TX_TAG_ERROR | INTR_RX_TAG_ERROR | \ + INTR_MAC_CTRL_STATUS) + +/* determines which status events will cause an interrupt. layout same + * as REG_INTR_STATUS. + * DEFAULT: 0xFFFFFFFF, SIZE: 16 bits + */ +#define REG_INTR_MASK 0x0010 /* Interrupt mask */ + +/* top level interrupt bits that are cleared during read of REG_INTR_STATUS_ALIAS. + * useful when driver is polling for interrupts. layout same as REG_INTR_MASK. + * DEFAULT: 0x00000000, SIZE: 12 bits + */ +#define REG_ALIAS_CLEAR 0x0014 /* alias clear mask + (used w/ status alias) */ +/* same as REG_INTR_STATUS except that only bits cleared are those selected by + * REG_ALIAS_CLEAR + * DEFAULT: 0x00000000, SIZE: 29 bits + */ +#define REG_INTR_STATUS_ALIAS 0x001C /* interrupt status alias + (selective clear) */ + +/* DEFAULT: 0x0, SIZE: 3 bits */ +#define REG_PCI_ERR_STATUS 0x1000 /* PCI error status */ +#define PCI_ERR_BADACK 0x01 /* reserved in Cassini+. + set if no ACK64# during ABS64 cycle + in Cassini. */ +#define PCI_ERR_DTRTO 0x02 /* delayed xaction timeout. set if + no read retry after 2^15 clocks */ +#define PCI_ERR_OTHER 0x04 /* other PCI errors */ +#define PCI_ERR_BIM_DMA_WRITE 0x08 /* BIM received 0 count DMA write req. + unused in Cassini. */ +#define PCI_ERR_BIM_DMA_READ 0x10 /* BIM received 0 count DMA read req. + unused in Cassini. */ +#define PCI_ERR_BIM_DMA_TIMEOUT 0x20 /* BIM received 255 retries during + DMA. unused in cassini. */ + +/* mask for PCI status events that will set PCI_ERR_STATUS. if cleared, event + * causes an interrupt to be generated. + * DEFAULT: 0x7, SIZE: 3 bits + */ +#define REG_PCI_ERR_STATUS_MASK 0x1004 /* PCI Error status mask */ + +/* used to configure PCI related parameters that are not in PCI config space. + * DEFAULT: 0bxx000, SIZE: 5 bits + */ +#define REG_BIM_CFG 0x1008 /* BIM Configuration */ +#define BIM_CFG_RESERVED0 0x001 /* reserved */ +#define BIM_CFG_RESERVED1 0x002 /* reserved */ +#define BIM_CFG_64BIT_DISABLE 0x004 /* disable 64-bit mode */ +#define BIM_CFG_66MHZ 0x008 /* (ro) 1 = 66MHz, 0 = < 66MHz */ +#define BIM_CFG_32BIT 0x010 /* (ro) 1 = 32-bit slot, 0 = 64-bit */ +#define BIM_CFG_DPAR_INTR_ENABLE 0x020 /* detected parity err enable */ +#define BIM_CFG_RMA_INTR_ENABLE 0x040 /* master abort intr enable */ +#define BIM_CFG_RTA_INTR_ENABLE 0x080 /* target abort intr enable */ +#define BIM_CFG_RESERVED2 0x100 /* reserved */ +#define BIM_CFG_BIM_DISABLE 0x200 /* stop BIM DMA. use before global + reset. reserved in Cassini. */ +#define BIM_CFG_BIM_STATUS 0x400 /* (ro) 1 = BIM DMA suspended. + reserved in Cassini. */ +#define BIM_CFG_PERROR_BLOCK 0x800 /* block PERR# to pci bus. def: 0. + reserved in Cassini. */ + +/* DEFAULT: 0x00000000, SIZE: 32 bits */ +#define REG_BIM_DIAG 0x100C /* BIM Diagnostic */ +#define BIM_DIAG_MSTR_SM_MASK 0x3FFFFF00 /* PCI master controller state + machine bits [21:0] */ +#define BIM_DIAG_BRST_SM_MASK 0x7F /* PCI burst controller state + machine bits [6:0] */ + +/* writing to SW_RESET_TX and SW_RESET_RX will issue a global + * reset. poll until TX and RX read back as 0's for completion. + */ +#define REG_SW_RESET 0x1010 /* Software reset */ +#define SW_RESET_TX 0x00000001 /* reset TX DMA engine. poll until + cleared to 0. */ +#define SW_RESET_RX 0x00000002 /* reset RX DMA engine. poll until + cleared to 0. */ +#define SW_RESET_RSTOUT 0x00000004 /* force RSTOUT# pin active (low). + resets PHY and anything else + connected to RSTOUT#. RSTOUT# + is also activated by local PCI + reset when hot-swap is being + done. */ +#define SW_RESET_BLOCK_PCS_SLINK 0x00000008 /* if a global reset is done with + this bit set, PCS and SLINK + modules won't be reset. + i.e., link won't drop. */ +#define SW_RESET_BREQ_SM_MASK 0x00007F00 /* breq state machine [6:0] */ +#define SW_RESET_PCIARB_SM_MASK 0x00070000 /* pci arbitration state bits: + 0b000: ARB_IDLE1 + 0b001: ARB_IDLE2 + 0b010: ARB_WB_ACK + 0b011: ARB_WB_WAT + 0b100: ARB_RB_ACK + 0b101: ARB_RB_WAT + 0b110: ARB_RB_END + 0b111: ARB_WB_END */ +#define SW_RESET_RDPCI_SM_MASK 0x00300000 /* read pci state bits: + 0b00: RD_PCI_WAT + 0b01: RD_PCI_RDY + 0b11: RD_PCI_ACK */ +#define SW_RESET_RDARB_SM_MASK 0x00C00000 /* read arbitration state bits: + 0b00: AD_IDL_RX + 0b01: AD_ACK_RX + 0b10: AD_ACK_TX + 0b11: AD_IDL_TX */ +#define SW_RESET_WRPCI_SM_MASK 0x06000000 /* write pci state bits + 0b00: WR_PCI_WAT + 0b01: WR_PCI_RDY + 0b11: WR_PCI_ACK */ +#define SW_RESET_WRARB_SM_MASK 0x38000000 /* write arbitration state bits: + 0b000: ARB_IDLE1 + 0b001: ARB_IDLE2 + 0b010: ARB_TX_ACK + 0b011: ARB_TX_WAT + 0b100: ARB_RX_ACK + 0b110: ARB_RX_WAT */ + +/* Cassini only. 64-bit register used to check PCI datapath. when read, + * value written has both lower and upper 32-bit halves rotated to the right + * one bit position. e.g., FFFFFFFF FFFFFFFF -> 7FFFFFFF 7FFFFFFF + */ +#define REG_MINUS_BIM_DATAPATH_TEST 0x1018 /* Cassini: BIM datapath test + Cassini+: reserved */ + +/* output enables are provided for each device's chip select and for the rest + * of the outputs from cassini to its local bus devices. two sw programmable + * bits are connected to general purpus control/status bits. + * DEFAULT: 0x7 + */ +#define REG_BIM_LOCAL_DEV_EN 0x1020 /* BIM local device + output EN. default: 0x7 */ +#define BIM_LOCAL_DEV_PAD 0x01 /* address bus, RW signal, and + OE signal output enable on the + local bus interface. these + are shared between both local + bus devices. tristate when 0. */ +#define BIM_LOCAL_DEV_PROM 0x02 /* PROM chip select */ +#define BIM_LOCAL_DEV_EXT 0x04 /* secondary local bus device chip + select output enable */ +#define BIM_LOCAL_DEV_SOFT_0 0x08 /* sw programmable ctrl bit 0 */ +#define BIM_LOCAL_DEV_SOFT_1 0x10 /* sw programmable ctrl bit 1 */ +#define BIM_LOCAL_DEV_HW_RESET 0x20 /* internal hw reset. Cassini+ only. */ + +/* access 24 entry BIM read and write buffers. put address in REG_BIM_BUFFER_ADDR + * and read/write from/to it REG_BIM_BUFFER_DATA_LOW and _DATA_HI. + * _DATA_HI should be the last access of the sequence. + * DEFAULT: undefined + */ +#define REG_BIM_BUFFER_ADDR 0x1024 /* BIM buffer address. for + purposes. */ +#define BIM_BUFFER_ADDR_MASK 0x3F /* index (0 - 23) of buffer */ +#define BIM_BUFFER_WR_SELECT 0x40 /* write buffer access = 1 + read buffer access = 0 */ +/* DEFAULT: undefined */ +#define REG_BIM_BUFFER_DATA_LOW 0x1028 /* BIM buffer data low */ +#define REG_BIM_BUFFER_DATA_HI 0x102C /* BIM buffer data high */ + +/* set BIM_RAM_BIST_START to start built-in self test for BIM read buffer. + * bit auto-clears when done with status read from _SUMMARY and _PASS bits. + */ +#define REG_BIM_RAM_BIST 0x102C /* BIM RAM (read buffer) BIST + control/status */ +#define BIM_RAM_BIST_RD_START 0x01 /* start BIST for BIM read buffer */ +#define BIM_RAM_BIST_WR_START 0x02 /* start BIST for BIM write buffer. + Cassini only. reserved in + Cassini+. */ +#define BIM_RAM_BIST_RD_PASS 0x04 /* summary BIST pass status for read + buffer. */ +#define BIM_RAM_BIST_WR_PASS 0x08 /* summary BIST pass status for write + buffer. Cassini only. reserved + in Cassini+. */ +#define BIM_RAM_BIST_RD_LOW_PASS 0x10 /* read low bank passes BIST */ +#define BIM_RAM_BIST_RD_HI_PASS 0x20 /* read high bank passes BIST */ +#define BIM_RAM_BIST_WR_LOW_PASS 0x40 /* write low bank passes BIST. + Cassini only. reserved in + Cassini+. */ +#define BIM_RAM_BIST_WR_HI_PASS 0x80 /* write high bank passes BIST. + Cassini only. reserved in + Cassini+. */ + +/* ASUN: i'm not sure what this does as it's not in the spec. + * DEFAULT: 0xFC + */ +#define REG_BIM_DIAG_MUX 0x1030 /* BIM diagnostic probe mux + select register */ + +/* enable probe monitoring mode and select data appearing on the P_A* bus. bit + * values for _SEL_HI_MASK and _SEL_LOW_MASK: + * 0x0: internal probe[7:0] (pci arb state, wtc empty w, wtc full w, wtc empty w, + * wtc empty r, post pci) + * 0x1: internal probe[15:8] (pci wbuf comp, pci wpkt comp, pci rbuf comp, + * pci rpkt comp, txdma wr req, txdma wr ack, + * txdma wr rdy, txdma wr xfr done) + * 0x2: internal probe[23:16] (txdma rd req, txdma rd ack, txdma rd rdy, rxdma rd, + * rd arb state, rd pci state) + * 0x3: internal probe[31:24] (rxdma req, rxdma ack, rxdma rdy, wrarb state, + * wrpci state) + * 0x4: pci io probe[7:0] 0x5: pci io probe[15:8] + * 0x6: pci io probe[23:16] 0x7: pci io probe[31:24] + * 0x8: pci io probe[39:32] 0x9: pci io probe[47:40] + * 0xa: pci io probe[55:48] 0xb: pci io probe[63:56] + * the following are not available in Cassini: + * 0xc: rx probe[7:0] 0xd: tx probe[7:0] + * 0xe: hp probe[7:0] 0xf: mac probe[7:0] + */ +#define REG_PLUS_PROBE_MUX_SELECT 0x1034 /* Cassini+: PROBE MUX SELECT */ +#define PROBE_MUX_EN 0x80000000 /* allow probe signals to be + driven on local bus P_A[15:0] + for debugging */ +#define PROBE_MUX_SUB_MUX_MASK 0x0000FF00 /* select sub module probe signals: + 0x03 = mac[1:0] + 0x0C = rx[1:0] + 0x30 = tx[1:0] + 0xC0 = hp[1:0] */ +#define PROBE_MUX_SEL_HI_MASK 0x000000F0 /* select which module to appear + on P_A[15:8]. see above for + values. */ +#define PROBE_MUX_SEL_LOW_MASK 0x0000000F /* select which module to appear + on P_A[7:0]. see above for + values. */ + +/* values mean the same thing as REG_INTR_MASK excep that it's for INTB. + DEFAULT: 0x1F */ +#define REG_PLUS_INTR_MASK_1 0x1038 /* Cassini+: interrupt mask + register 2 for INTB */ +#define REG_PLUS_INTRN_MASK(x) (REG_PLUS_INTR_MASK_1 + ((x) - 1)*16) +/* bits correspond to both _MASK and _STATUS registers. _ALT corresponds to + * all of the alternate (2-4) INTR registers while _1 corresponds to only + * _MASK_1 and _STATUS_1 registers. + * DEFAULT: 0x7 for MASK registers, 0x0 for ALIAS_CLEAR registers + */ +#define INTR_RX_DONE_ALT 0x01 +#define INTR_RX_COMP_FULL_ALT 0x02 +#define INTR_RX_COMP_AF_ALT 0x04 +#define INTR_RX_BUF_UNAVAIL_1 0x08 +#define INTR_RX_BUF_AE_1 0x10 /* almost empty */ +#define INTRN_MASK_RX_EN 0x80 +#define INTRN_MASK_CLEAR_ALL (INTR_RX_DONE_ALT | \ + INTR_RX_COMP_FULL_ALT | \ + INTR_RX_COMP_AF_ALT | \ + INTR_RX_BUF_UNAVAIL_1 | \ + INTR_RX_BUF_AE_1) +#define REG_PLUS_INTR_STATUS_1 0x103C /* Cassini+: interrupt status + register 2 for INTB. default: 0x1F */ +#define REG_PLUS_INTRN_STATUS(x) (REG_PLUS_INTR_STATUS_1 + ((x) - 1)*16) +#define INTR_STATUS_ALT_INTX_EN 0x80 /* generate INTX when one of the + flags are set. enables desc ring. */ + +#define REG_PLUS_ALIAS_CLEAR_1 0x1040 /* Cassini+: alias clear mask + register 2 for INTB */ +#define REG_PLUS_ALIASN_CLEAR(x) (REG_PLUS_ALIAS_CLEAR_1 + ((x) - 1)*16) + +#define REG_PLUS_INTR_STATUS_ALIAS_1 0x1044 /* Cassini+: interrupt status + register alias 2 for INTB */ +#define REG_PLUS_INTRN_STATUS_ALIAS(x) (REG_PLUS_INTR_STATUS_ALIAS_1 + ((x) - 1)*16) + +#define REG_SATURN_PCFG 0x106c /* pin configuration register for + integrated macphy */ + +#define SATURN_PCFG_TLA 0x00000001 /* 1 = phy actled */ +#define SATURN_PCFG_FLA 0x00000002 /* 1 = phy link10led */ +#define SATURN_PCFG_CLA 0x00000004 /* 1 = phy link100led */ +#define SATURN_PCFG_LLA 0x00000008 /* 1 = phy link1000led */ +#define SATURN_PCFG_RLA 0x00000010 /* 1 = phy duplexled */ +#define SATURN_PCFG_PDS 0x00000020 /* phy debug mode. + 0 = normal */ +#define SATURN_PCFG_MTP 0x00000080 /* test point select */ +#define SATURN_PCFG_GMO 0x00000100 /* GMII observe. 1 = + GMII on SERDES pins for + monitoring. */ +#define SATURN_PCFG_FSI 0x00000200 /* 1 = freeze serdes/gmii. all + pins configed as outputs. + for power saving when using + internal phy. */ +#define SATURN_PCFG_LAD 0x00000800 /* 0 = mac core led ctrl + polarity from strapping + value. + 1 = mac core led ctrl + polarity active low. */ + + +/** transmit dma registers **/ +#define MAX_TX_RINGS_SHIFT 2 +#define MAX_TX_RINGS (1 << MAX_TX_RINGS_SHIFT) +#define MAX_TX_RINGS_MASK (MAX_TX_RINGS - 1) + +/* TX configuration. + * descr ring sizes size = 32 * (1 << n), n < 9. e.g., 0x8 = 8k. default: 0x8 + * DEFAULT: 0x3F000001 + */ +#define REG_TX_CFG 0x2004 /* TX config */ +#define TX_CFG_DMA_EN 0x00000001 /* enable TX DMA. if cleared, DMA + will stop after xfer of current + buffer has been completed. */ +#define TX_CFG_FIFO_PIO_SEL 0x00000002 /* TX DMA FIFO can be + accessed w/ FIFO addr + and data registers. + TX DMA should be + disabled. */ +#define TX_CFG_DESC_RING0_MASK 0x0000003C /* # desc entries in + ring 1. */ +#define TX_CFG_DESC_RING0_SHIFT 2 +#define TX_CFG_DESC_RINGN_MASK(a) (TX_CFG_DESC_RING0_MASK << (a)*4) +#define TX_CFG_DESC_RINGN_SHIFT(a) (TX_CFG_DESC_RING0_SHIFT + (a)*4) +#define TX_CFG_PACED_MODE 0x00100000 /* TX_ALL only set after + TX FIFO becomes empty. + if 0, TX_ALL set + if descr queue empty. */ +#define TX_CFG_DMA_RDPIPE_DIS 0x01000000 /* always set to 1 */ +#define TX_CFG_COMPWB_Q1 0x02000000 /* completion writeback happens at + the end of every packet kicked + through Q1. */ +#define TX_CFG_COMPWB_Q2 0x04000000 /* completion writeback happens at + the end of every packet kicked + through Q2. */ +#define TX_CFG_COMPWB_Q3 0x08000000 /* completion writeback happens at + the end of every packet kicked + through Q3 */ +#define TX_CFG_COMPWB_Q4 0x10000000 /* completion writeback happens at + the end of every packet kicked + through Q4 */ +#define TX_CFG_INTR_COMPWB_DIS 0x20000000 /* disable pre-interrupt completion + writeback */ +#define TX_CFG_CTX_SEL_MASK 0xC0000000 /* selects tx test port + connection + 0b00: tx mac req, + tx mac retry req, + tx ack and tx tag. + 0b01: txdma rd req, + txdma rd ack, + txdma rd rdy, + txdma rd type0 + 0b11: txdma wr req, + txdma wr ack, + txdma wr rdy, + txdma wr xfr done. */ +#define TX_CFG_CTX_SEL_SHIFT 30 + +/* 11-bit counters that point to next location in FIFO to be loaded/retrieved. + * used for diagnostics only. + */ +#define REG_TX_FIFO_WRITE_PTR 0x2014 /* TX FIFO write pointer */ +#define REG_TX_FIFO_SHADOW_WRITE_PTR 0x2018 /* TX FIFO shadow write + pointer. temp hold reg. + diagnostics only. */ +#define REG_TX_FIFO_READ_PTR 0x201C /* TX FIFO read pointer */ +#define REG_TX_FIFO_SHADOW_READ_PTR 0x2020 /* TX FIFO shadow read + pointer */ + +/* (ro) 11-bit up/down counter w/ # of frames currently in TX FIFO */ +#define REG_TX_FIFO_PKT_CNT 0x2024 /* TX FIFO packet counter */ + +/* current state of all state machines in TX */ +#define REG_TX_SM_1 0x2028 /* TX state machine reg #1 */ +#define TX_SM_1_CHAIN_MASK 0x000003FF /* chaining state machine */ +#define TX_SM_1_CSUM_MASK 0x00000C00 /* checksum state machine */ +#define TX_SM_1_FIFO_LOAD_MASK 0x0003F000 /* FIFO load state machine. + = 0x01 when TX disabled. */ +#define TX_SM_1_FIFO_UNLOAD_MASK 0x003C0000 /* FIFO unload state machine */ +#define TX_SM_1_CACHE_MASK 0x03C00000 /* desc. prefetch cache controller + state machine */ +#define TX_SM_1_CBQ_ARB_MASK 0xF8000000 /* CBQ arbiter state machine */ + +#define REG_TX_SM_2 0x202C /* TX state machine reg #2 */ +#define TX_SM_2_COMP_WB_MASK 0x07 /* completion writeback sm */ +#define TX_SM_2_SUB_LOAD_MASK 0x38 /* sub load state machine */ +#define TX_SM_2_KICK_MASK 0xC0 /* kick state machine */ + +/* 64-bit pointer to the transmit data buffer. only the 50 LSB are incremented + * while the upper 23 bits are taken from the TX descriptor + */ +#define REG_TX_DATA_PTR_LOW 0x2030 /* TX data pointer low */ +#define REG_TX_DATA_PTR_HI 0x2034 /* TX data pointer high */ + +/* 13 bit registers written by driver w/ descriptor value that follows + * last valid xmit descriptor. kick # and complete # values are used by + * the xmit dma engine to control tx descr fetching. if > 1 valid + * tx descr is available within the cache line being read, cassini will + * internally cache up to 4 of them. 0 on reset. _KICK = rw, _COMP = ro. + */ +#define REG_TX_KICK0 0x2038 /* TX kick reg #1 */ +#define REG_TX_KICKN(x) (REG_TX_KICK0 + (x)*4) +#define REG_TX_COMP0 0x2048 /* TX completion reg #1 */ +#define REG_TX_COMPN(x) (REG_TX_COMP0 + (x)*4) + +/* values of TX_COMPLETE_1-4 are written. each completion register + * is 2bytes in size and contiguous. 8B allocation w/ 8B alignment. + * NOTE: completion reg values are only written back prior to TX_INTME and + * TX_ALL interrupts. at all other times, the most up-to-date index values + * should be obtained from the REG_TX_COMPLETE_# registers. + * here's the layout: + * offset from base addr completion # byte + * 0 TX_COMPLETE_1_MSB + * 1 TX_COMPLETE_1_LSB + * 2 TX_COMPLETE_2_MSB + * 3 TX_COMPLETE_2_LSB + * 4 TX_COMPLETE_3_MSB + * 5 TX_COMPLETE_3_LSB + * 6 TX_COMPLETE_4_MSB + * 7 TX_COMPLETE_4_LSB + */ +#define TX_COMPWB_SIZE 8 +#define REG_TX_COMPWB_DB_LOW 0x2058 /* TX completion write back + base low */ +#define REG_TX_COMPWB_DB_HI 0x205C /* TX completion write back + base high */ +#define TX_COMPWB_MSB_MASK 0x00000000000000FFULL +#define TX_COMPWB_MSB_SHIFT 0 +#define TX_COMPWB_LSB_MASK 0x000000000000FF00ULL +#define TX_COMPWB_LSB_SHIFT 8 +#define TX_COMPWB_NEXT(x) ((x) >> 16) + +/* 53 MSB used as base address. 11 LSB assumed to be 0. TX desc pointer must + * be 2KB-aligned. */ +#define REG_TX_DB0_LOW 0x2060 /* TX descriptor base low #1 */ +#define REG_TX_DB0_HI 0x2064 /* TX descriptor base hi #1 */ +#define REG_TX_DBN_LOW(x) (REG_TX_DB0_LOW + (x)*8) +#define REG_TX_DBN_HI(x) (REG_TX_DB0_HI + (x)*8) + +/* 16-bit registers hold weights for the weighted round-robin of the + * four CBQ TX descr rings. weights correspond to # bytes xferred from + * host to TXFIFO in a round of WRR arbitration. can be set + * dynamically with new weights set upon completion of the current + * packet transfer from host memory to TXFIFO. a dummy write to any of + * these registers causes a queue1 pre-emption with all historical bw + * deficit data reset to 0 (useful when congestion requires a + * pre-emption/re-allocation of network bandwidth + */ +#define REG_TX_MAXBURST_0 0x2080 /* TX MaxBurst #1 */ +#define REG_TX_MAXBURST_1 0x2084 /* TX MaxBurst #2 */ +#define REG_TX_MAXBURST_2 0x2088 /* TX MaxBurst #3 */ +#define REG_TX_MAXBURST_3 0x208C /* TX MaxBurst #4 */ + +/* diagnostics access to any TX FIFO location. every access is 65 + * bits. _DATA_LOW = 32 LSB, _DATA_HI_T1/T0 = 32 MSB. _TAG = tag bit. + * writing _DATA_HI_T0 sets tag bit low, writing _DATA_HI_T1 sets tag + * bit high. TX_FIFO_PIO_SEL must be set for TX FIFO PIO access. if + * TX FIFO data integrity is desired, TX DMA should be + * disabled. _DATA_HI_Tx should be the last access of the sequence. + */ +#define REG_TX_FIFO_ADDR 0x2104 /* TX FIFO address */ +#define REG_TX_FIFO_TAG 0x2108 /* TX FIFO tag */ +#define REG_TX_FIFO_DATA_LOW 0x210C /* TX FIFO data low */ +#define REG_TX_FIFO_DATA_HI_T1 0x2110 /* TX FIFO data high t1 */ +#define REG_TX_FIFO_DATA_HI_T0 0x2114 /* TX FIFO data high t0 */ +#define REG_TX_FIFO_SIZE 0x2118 /* (ro) TX FIFO size = 0x090 = 9KB */ + +/* 9-bit register controls BIST of TX FIFO. bit set indicates that the BIST + * passed for the specified memory + */ +#define REG_TX_RAMBIST 0x211C /* TX RAMBIST control/status */ +#define TX_RAMBIST_STATE 0x01C0 /* progress state of RAMBIST + controller state machine */ +#define TX_RAMBIST_RAM33A_PASS 0x0020 /* RAM33A passed */ +#define TX_RAMBIST_RAM32A_PASS 0x0010 /* RAM32A passed */ +#define TX_RAMBIST_RAM33B_PASS 0x0008 /* RAM33B passed */ +#define TX_RAMBIST_RAM32B_PASS 0x0004 /* RAM32B passed */ +#define TX_RAMBIST_SUMMARY 0x0002 /* all RAM passed */ +#define TX_RAMBIST_START 0x0001 /* write 1 to start BIST. self + clears on completion. */ + +/** receive dma registers **/ +#define MAX_RX_DESC_RINGS 2 +#define MAX_RX_COMP_RINGS 4 + +/* receive DMA channel configuration. default: 0x80910 + * free ring size = (1 << n)*32 -> [32 - 8k] + * completion ring size = (1 << n)*128 -> [128 - 32k], n < 9 + * DEFAULT: 0x80910 + */ +#define REG_RX_CFG 0x4000 /* RX config */ +#define RX_CFG_DMA_EN 0x00000001 /* enable RX DMA. 0 stops + channel as soon as current + frame xfer has completed. + driver should disable MAC + for 200ms before disabling + RX */ +#define RX_CFG_DESC_RING_MASK 0x0000001E /* # desc entries in RX + free desc ring. + def: 0x8 = 8k */ +#define RX_CFG_DESC_RING_SHIFT 1 +#define RX_CFG_COMP_RING_MASK 0x000001E0 /* # desc entries in RX complete + ring. def: 0x8 = 32k */ +#define RX_CFG_COMP_RING_SHIFT 5 +#define RX_CFG_BATCH_DIS 0x00000200 /* disable receive desc + batching. def: 0x0 = + enabled */ +#define RX_CFG_SWIVEL_MASK 0x00001C00 /* byte offset of the 1st + data byte of the packet + w/in 8 byte boundares. + this swivels the data + DMA'ed to header + buffers, jumbo buffers + when header split is not + requested and MTU sized + buffers. def: 0x2 */ +#define RX_CFG_SWIVEL_SHIFT 10 + +/* cassini+ only */ +#define RX_CFG_DESC_RING1_MASK 0x000F0000 /* # of desc entries in + RX free desc ring 2. + def: 0x8 = 8k */ +#define RX_CFG_DESC_RING1_SHIFT 16 + + +/* the page size register allows cassini chips to do the following with + * received data: + * [--------------------------------------------------------------] page + * [off][buf1][pad][off][buf2][pad][off][buf3][pad][off][buf4][pad] + * |--------------| = PAGE_SIZE_BUFFER_STRIDE + * page = PAGE_SIZE + * offset = PAGE_SIZE_MTU_OFF + * for the above example, MTU_BUFFER_COUNT = 4. + * NOTE: as is apparent, you need to ensure that the following holds: + * MTU_BUFFER_COUNT <= PAGE_SIZE/PAGE_SIZE_BUFFER_STRIDE + * DEFAULT: 0x48002002 (8k pages) + */ +#define REG_RX_PAGE_SIZE 0x4004 /* RX page size */ +#define RX_PAGE_SIZE_MASK 0x00000003 /* size of pages pointed to + by receive descriptors. + if jumbo buffers are + supported the page size + should not be < 8k. + 0b00 = 2k, 0b01 = 4k + 0b10 = 8k, 0b11 = 16k + DEFAULT: 8k */ +#define RX_PAGE_SIZE_SHIFT 0 +#define RX_PAGE_SIZE_MTU_COUNT_MASK 0x00007800 /* # of MTU buffers the hw + packs into a page. + DEFAULT: 4 */ +#define RX_PAGE_SIZE_MTU_COUNT_SHIFT 11 +#define RX_PAGE_SIZE_MTU_STRIDE_MASK 0x18000000 /* # of bytes that separate + each MTU buffer + + offset from each + other. + 0b00 = 1k, 0b01 = 2k + 0b10 = 4k, 0b11 = 8k + DEFAULT: 0x1 */ +#define RX_PAGE_SIZE_MTU_STRIDE_SHIFT 27 +#define RX_PAGE_SIZE_MTU_OFF_MASK 0xC0000000 /* offset in each page that + hw writes the MTU buffer + into. + 0b00 = 0, + 0b01 = 64 bytes + 0b10 = 96, 0b11 = 128 + DEFAULT: 0x1 */ +#define RX_PAGE_SIZE_MTU_OFF_SHIFT 30 + +/* 11-bit counter points to next location in RX FIFO to be loaded/read. + * shadow write pointers enable retries in case of early receive aborts. + * DEFAULT: 0x0. generated on 64-bit boundaries. + */ +#define REG_RX_FIFO_WRITE_PTR 0x4008 /* RX FIFO write pointer */ +#define REG_RX_FIFO_READ_PTR 0x400C /* RX FIFO read pointer */ +#define REG_RX_IPP_FIFO_SHADOW_WRITE_PTR 0x4010 /* RX IPP FIFO shadow write + pointer */ +#define REG_RX_IPP_FIFO_SHADOW_READ_PTR 0x4014 /* RX IPP FIFO shadow read + pointer */ +#define REG_RX_IPP_FIFO_READ_PTR 0x400C /* RX IPP FIFO read + pointer. (8-bit counter) */ + +/* current state of RX DMA state engines + other info + * DEFAULT: 0x0 + */ +#define REG_RX_DEBUG 0x401C /* RX debug */ +#define RX_DEBUG_LOAD_STATE_MASK 0x0000000F /* load state machine w/ MAC: + 0x0 = idle, 0x1 = load_bop + 0x2 = load 1, 0x3 = load 2 + 0x4 = load 3, 0x5 = load 4 + 0x6 = last detect + 0x7 = wait req + 0x8 = wait req statuss 1st + 0x9 = load st + 0xa = bubble mac + 0xb = error */ +#define RX_DEBUG_LM_STATE_MASK 0x00000070 /* load state machine w/ HP and + RX FIFO: + 0x0 = idle, 0x1 = hp xfr + 0x2 = wait hp ready + 0x3 = wait flow code + 0x4 = fifo xfer + 0x5 = make status + 0x6 = csum ready + 0x7 = error */ +#define RX_DEBUG_FC_STATE_MASK 0x000000180 /* flow control state machine + w/ MAC: + 0x0 = idle + 0x1 = wait xoff ack + 0x2 = wait xon + 0x3 = wait xon ack */ +#define RX_DEBUG_DATA_STATE_MASK 0x000001E00 /* unload data state machine + states: + 0x0 = idle data + 0x1 = header begin + 0x2 = xfer header + 0x3 = xfer header ld + 0x4 = mtu begin + 0x5 = xfer mtu + 0x6 = xfer mtu ld + 0x7 = jumbo begin + 0x8 = xfer jumbo + 0x9 = xfer jumbo ld + 0xa = reas begin + 0xb = xfer reas + 0xc = flush tag + 0xd = xfer reas ld + 0xe = error + 0xf = bubble idle */ +#define RX_DEBUG_DESC_STATE_MASK 0x0001E000 /* unload desc state machine + states: + 0x0 = idle desc + 0x1 = wait ack + 0x9 = wait ack 2 + 0x2 = fetch desc 1 + 0xa = fetch desc 2 + 0x3 = load ptrs + 0x4 = wait dma + 0x5 = wait ack batch + 0x6 = post batch + 0x7 = xfr done */ +#define RX_DEBUG_INTR_READ_PTR_MASK 0x30000000 /* interrupt read ptr of the + interrupt queue */ +#define RX_DEBUG_INTR_WRITE_PTR_MASK 0xC0000000 /* interrupt write pointer + of the interrupt queue */ + +/* flow control frames are emmitted using two PAUSE thresholds: + * XOFF PAUSE uses pause time value pre-programmed in the Send PAUSE MAC reg + * XON PAUSE uses a pause time of 0. granularity of threshold is 64bytes. + * PAUSE thresholds defined in terms of FIFO occupancy and may be translated + * into FIFO vacancy using RX_FIFO_SIZE. setting ON will trigger XON frames + * when FIFO reaches 0. OFF threshold should not be > size of RX FIFO. max + * value is is 0x6F. + * DEFAULT: 0x00078 + */ +#define REG_RX_PAUSE_THRESH 0x4020 /* RX pause thresholds */ +#define RX_PAUSE_THRESH_QUANTUM 64 +#define RX_PAUSE_THRESH_OFF_MASK 0x000001FF /* XOFF PAUSE emitted when + RX FIFO occupancy > + value*64B */ +#define RX_PAUSE_THRESH_OFF_SHIFT 0 +#define RX_PAUSE_THRESH_ON_MASK 0x001FF000 /* XON PAUSE emitted after + emitting XOFF PAUSE when RX + FIFO occupancy falls below + this value*64B. must be + < XOFF threshold. if = + RX_FIFO_SIZE< XON frames are + never emitted. */ +#define RX_PAUSE_THRESH_ON_SHIFT 12 + +/* 13-bit register used to control RX desc fetching and intr generation. if 4+ + * valid RX descriptors are available, Cassini will read 4 at a time. + * writing N means that all desc up to *but* excluding N are available. N must + * be a multiple of 4 (N % 4 = 0). first desc should be cache-line aligned. + * DEFAULT: 0 on reset + */ +#define REG_RX_KICK 0x4024 /* RX kick reg */ + +/* 8KB aligned 64-bit pointer to the base of the RX free/completion rings. + * lower 13 bits of the low register are hard-wired to 0. + */ +#define REG_RX_DB_LOW 0x4028 /* RX descriptor ring + base low */ +#define REG_RX_DB_HI 0x402C /* RX descriptor ring + base hi */ +#define REG_RX_CB_LOW 0x4030 /* RX completion ring + base low */ +#define REG_RX_CB_HI 0x4034 /* RX completion ring + base hi */ +/* 13-bit register indicate desc used by cassini for receive frames. used + * for diagnostic purposes. + * DEFAULT: 0 on reset + */ +#define REG_RX_COMP 0x4038 /* (ro) RX completion */ + +/* HEAD and TAIL are used to control RX desc posting and interrupt + * generation. hw moves the head register to pass ownership to sw. sw + * moves the tail register to pass ownership back to hw. to give all + * entries to hw, set TAIL = HEAD. if HEAD and TAIL indicate that no + * more entries are available, DMA will pause and an interrupt will be + * generated to indicate no more entries are available. sw can use + * this interrupt to reduce the # of times it must update the + * completion tail register. + * DEFAULT: 0 on reset + */ +#define REG_RX_COMP_HEAD 0x403C /* RX completion head */ +#define REG_RX_COMP_TAIL 0x4040 /* RX completion tail */ + +/* values used for receive interrupt blanking. loaded each time the ISR is read + * DEFAULT: 0x00000000 + */ +#define REG_RX_BLANK 0x4044 /* RX blanking register + for ISR read */ +#define RX_BLANK_INTR_PKT_MASK 0x000001FF /* RX_DONE intr asserted if + this many sets of completion + writebacks (up to 2 packets) + occur since the last time + the ISR was read. 0 = no + packet blanking */ +#define RX_BLANK_INTR_PKT_SHIFT 0 +#define RX_BLANK_INTR_TIME_MASK 0x3FFFF000 /* RX_DONE interrupt asserted + if that many clocks were + counted since last time the + ISR was read. + each count is 512 core + clocks (125MHz). 0 = no + time blanking */ +#define RX_BLANK_INTR_TIME_SHIFT 12 + +/* values used for interrupt generation based on threshold values of how + * many free desc and completion entries are available for hw use. + * DEFAULT: 0x00000000 + */ +#define REG_RX_AE_THRESH 0x4048 /* RX almost empty + thresholds */ +#define RX_AE_THRESH_FREE_MASK 0x00001FFF /* RX_BUF_AE will be + generated if # desc + avail for hw use <= + # */ +#define RX_AE_THRESH_FREE_SHIFT 0 +#define RX_AE_THRESH_COMP_MASK 0x0FFFE000 /* RX_COMP_AE will be + generated if # of + completion entries + avail for hw use <= + # */ +#define RX_AE_THRESH_COMP_SHIFT 13 + +/* probabilities for random early drop (RED) thresholds on a FIFO threshold + * basis. probability should increase when the FIFO level increases. control + * packets are never dropped and not counted in stats. probability programmed + * on a 12.5% granularity. e.g., 0x1 = 1/8 packets dropped. + * DEFAULT: 0x00000000 + */ +#define REG_RX_RED 0x404C /* RX random early detect enable */ +#define RX_RED_4K_6K_FIFO_MASK 0x000000FF /* 4KB < FIFO thresh < 6KB */ +#define RX_RED_6K_8K_FIFO_MASK 0x0000FF00 /* 6KB < FIFO thresh < 8KB */ +#define RX_RED_8K_10K_FIFO_MASK 0x00FF0000 /* 8KB < FIFO thresh < 10KB */ +#define RX_RED_10K_12K_FIFO_MASK 0xFF000000 /* 10KB < FIFO thresh < 12KB */ + +/* FIFO fullness levels for RX FIFO, RX control FIFO, and RX IPP FIFO. + * RX control FIFO = # of packets in RX FIFO. + * DEFAULT: 0x0 + */ +#define REG_RX_FIFO_FULLNESS 0x4050 /* (ro) RX FIFO fullness */ +#define RX_FIFO_FULLNESS_RX_FIFO_MASK 0x3FF80000 /* level w/ 8B granularity */ +#define RX_FIFO_FULLNESS_IPP_FIFO_MASK 0x0007FF00 /* level w/ 8B granularity */ +#define RX_FIFO_FULLNESS_RX_PKT_MASK 0x000000FF /* # packets in RX FIFO */ +#define REG_RX_IPP_PACKET_COUNT 0x4054 /* RX IPP packet counter */ +#define REG_RX_WORK_DMA_PTR_LOW 0x4058 /* RX working DMA ptr low */ +#define REG_RX_WORK_DMA_PTR_HI 0x405C /* RX working DMA ptr + high */ + +/* BIST testing ro RX FIFO, RX control FIFO, and RX IPP FIFO. only RX BIST + * START/COMPLETE is writeable. START will clear when the BIST has completed + * checking all 17 RAMS. + * DEFAULT: 0bxxxx xxxxx xxxx xxxx xxxx x000 0000 0000 00x0 + */ +#define REG_RX_BIST 0x4060 /* (ro) RX BIST */ +#define RX_BIST_32A_PASS 0x80000000 /* RX FIFO 32A passed */ +#define RX_BIST_33A_PASS 0x40000000 /* RX FIFO 33A passed */ +#define RX_BIST_32B_PASS 0x20000000 /* RX FIFO 32B passed */ +#define RX_BIST_33B_PASS 0x10000000 /* RX FIFO 33B passed */ +#define RX_BIST_32C_PASS 0x08000000 /* RX FIFO 32C passed */ +#define RX_BIST_33C_PASS 0x04000000 /* RX FIFO 33C passed */ +#define RX_BIST_IPP_32A_PASS 0x02000000 /* RX IPP FIFO 33B passed */ +#define RX_BIST_IPP_33A_PASS 0x01000000 /* RX IPP FIFO 33A passed */ +#define RX_BIST_IPP_32B_PASS 0x00800000 /* RX IPP FIFO 32B passed */ +#define RX_BIST_IPP_33B_PASS 0x00400000 /* RX IPP FIFO 33B passed */ +#define RX_BIST_IPP_32C_PASS 0x00200000 /* RX IPP FIFO 32C passed */ +#define RX_BIST_IPP_33C_PASS 0x00100000 /* RX IPP FIFO 33C passed */ +#define RX_BIST_CTRL_32_PASS 0x00800000 /* RX CTRL FIFO 32 passed */ +#define RX_BIST_CTRL_33_PASS 0x00400000 /* RX CTRL FIFO 33 passed */ +#define RX_BIST_REAS_26A_PASS 0x00200000 /* RX Reas 26A passed */ +#define RX_BIST_REAS_26B_PASS 0x00100000 /* RX Reas 26B passed */ +#define RX_BIST_REAS_27_PASS 0x00080000 /* RX Reas 27 passed */ +#define RX_BIST_STATE_MASK 0x00078000 /* BIST state machine */ +#define RX_BIST_SUMMARY 0x00000002 /* when BIST complete, + summary pass bit + contains AND of BIST + results of all 16 + RAMS */ +#define RX_BIST_START 0x00000001 /* write 1 to start + BIST. self clears + on completion. */ + +/* next location in RX CTRL FIFO that will be loaded w/ data from RX IPP/read + * from to retrieve packet control info. + * DEFAULT: 0 + */ +#define REG_RX_CTRL_FIFO_WRITE_PTR 0x4064 /* (ro) RX control FIFO + write ptr */ +#define REG_RX_CTRL_FIFO_READ_PTR 0x4068 /* (ro) RX control FIFO read + ptr */ + +/* receive interrupt blanking. loaded each time interrupt alias register is + * read. + * DEFAULT: 0x0 + */ +#define REG_RX_BLANK_ALIAS_READ 0x406C /* RX blanking register for + alias read */ +#define RX_BAR_INTR_PACKET_MASK 0x000001FF /* assert RX_DONE if # + completion writebacks + > # since last ISR + read. 0 = no + blanking. up to 2 + packets per + completion wb. */ +#define RX_BAR_INTR_TIME_MASK 0x3FFFF000 /* assert RX_DONE if # + clocks > # since last + ISR read. each count + is 512 core clocks + (125MHz). 0 = no + blanking. */ + +/* diagnostic access to RX FIFO. 32 LSB accessed via DATA_LOW. 32 MSB accessed + * via DATA_HI_T0 or DATA_HI_T1. TAG reads the tag bit. writing HI_T0 + * will unset the tag bit while writing HI_T1 will set the tag bit. to reset + * to normal operation after diagnostics, write to address location 0x0. + * RX_DMA_EN bit must be set to 0x0 for RX FIFO PIO access. DATA_HI should + * be the last write access of a write sequence. + * DEFAULT: undefined + */ +#define REG_RX_FIFO_ADDR 0x4080 /* RX FIFO address */ +#define REG_RX_FIFO_TAG 0x4084 /* RX FIFO tag */ +#define REG_RX_FIFO_DATA_LOW 0x4088 /* RX FIFO data low */ +#define REG_RX_FIFO_DATA_HI_T0 0x408C /* RX FIFO data high T0 */ +#define REG_RX_FIFO_DATA_HI_T1 0x4090 /* RX FIFO data high T1 */ + +/* diagnostic assess to RX CTRL FIFO. 8-bit FIFO_ADDR holds address of + * 81 bit control entry and 6 bit flow id. LOW and MID are both 32-bit + * accesses. HI is 7-bits with 6-bit flow id and 1 bit control + * word. RX_DMA_EN must be 0 for RX CTRL FIFO PIO access. DATA_HI + * should be last write access of the write sequence. + * DEFAULT: undefined + */ +#define REG_RX_CTRL_FIFO_ADDR 0x4094 /* RX Control FIFO and + Batching FIFO addr */ +#define REG_RX_CTRL_FIFO_DATA_LOW 0x4098 /* RX Control FIFO data + low */ +#define REG_RX_CTRL_FIFO_DATA_MID 0x409C /* RX Control FIFO data + mid */ +#define REG_RX_CTRL_FIFO_DATA_HI 0x4100 /* RX Control FIFO data + hi and flow id */ +#define RX_CTRL_FIFO_DATA_HI_CTRL 0x0001 /* upper bit of ctrl word */ +#define RX_CTRL_FIFO_DATA_HI_FLOW_MASK 0x007E /* flow id */ + +/* diagnostic access to RX IPP FIFO. same semantics as RX_FIFO. + * DEFAULT: undefined + */ +#define REG_RX_IPP_FIFO_ADDR 0x4104 /* RX IPP FIFO address */ +#define REG_RX_IPP_FIFO_TAG 0x4108 /* RX IPP FIFO tag */ +#define REG_RX_IPP_FIFO_DATA_LOW 0x410C /* RX IPP FIFO data low */ +#define REG_RX_IPP_FIFO_DATA_HI_T0 0x4110 /* RX IPP FIFO data high + T0 */ +#define REG_RX_IPP_FIFO_DATA_HI_T1 0x4114 /* RX IPP FIFO data high + T1 */ + +/* 64-bit pointer to receive data buffer in host memory used for headers and + * small packets. MSB in high register. loaded by DMA state machine and + * increments as DMA writes receive data. only 50 LSB are incremented. top + * 13 bits taken from RX descriptor. + * DEFAULT: undefined + */ +#define REG_RX_HEADER_PAGE_PTR_LOW 0x4118 /* (ro) RX header page ptr + low */ +#define REG_RX_HEADER_PAGE_PTR_HI 0x411C /* (ro) RX header page ptr + high */ +#define REG_RX_MTU_PAGE_PTR_LOW 0x4120 /* (ro) RX MTU page pointer + low */ +#define REG_RX_MTU_PAGE_PTR_HI 0x4124 /* (ro) RX MTU page pointer + high */ + +/* PIO diagnostic access to RX reassembly DMA Table RAM. 6-bit register holds + * one of 64 79-bit locations in the RX Reassembly DMA table and the addr of + * one of the 64 byte locations in the Batching table. LOW holds 32 LSB. + * MID holds the next 32 LSB. HIGH holds the 15 MSB. RX_DMA_EN must be set + * to 0 for PIO access. DATA_HIGH should be last write of write sequence. + * layout: + * reassmbl ptr [78:15] | reassmbl index [14:1] | reassmbl entry valid [0] + * DEFAULT: undefined + */ +#define REG_RX_TABLE_ADDR 0x4128 /* RX reassembly DMA table + address */ +#define RX_TABLE_ADDR_MASK 0x0000003F /* address mask */ + +#define REG_RX_TABLE_DATA_LOW 0x412C /* RX reassembly DMA table + data low */ +#define REG_RX_TABLE_DATA_MID 0x4130 /* RX reassembly DMA table + data mid */ +#define REG_RX_TABLE_DATA_HI 0x4134 /* RX reassembly DMA table + data high */ + +/* cassini+ only */ +/* 8KB aligned 64-bit pointer to base of RX rings. lower 13 bits hardwired to + * 0. same semantics as primary desc/complete rings. + */ +#define REG_PLUS_RX_DB1_LOW 0x4200 /* RX descriptor ring + 2 base low */ +#define REG_PLUS_RX_DB1_HI 0x4204 /* RX descriptor ring + 2 base high */ +#define REG_PLUS_RX_CB1_LOW 0x4208 /* RX completion ring + 2 base low. 4 total */ +#define REG_PLUS_RX_CB1_HI 0x420C /* RX completion ring + 2 base high. 4 total */ +#define REG_PLUS_RX_CBN_LOW(x) (REG_PLUS_RX_CB1_LOW + 8*((x) - 1)) +#define REG_PLUS_RX_CBN_HI(x) (REG_PLUS_RX_CB1_HI + 8*((x) - 1)) +#define REG_PLUS_RX_KICK1 0x4220 /* RX Kick 2 register */ +#define REG_PLUS_RX_COMP1 0x4224 /* (ro) RX completion 2 + reg */ +#define REG_PLUS_RX_COMP1_HEAD 0x4228 /* (ro) RX completion 2 + head reg. 4 total. */ +#define REG_PLUS_RX_COMP1_TAIL 0x422C /* RX completion 2 + tail reg. 4 total. */ +#define REG_PLUS_RX_COMPN_HEAD(x) (REG_PLUS_RX_COMP1_HEAD + 8*((x) - 1)) +#define REG_PLUS_RX_COMPN_TAIL(x) (REG_PLUS_RX_COMP1_TAIL + 8*((x) - 1)) +#define REG_PLUS_RX_AE1_THRESH 0x4240 /* RX almost empty 2 + thresholds */ +#define RX_AE1_THRESH_FREE_MASK RX_AE_THRESH_FREE_MASK +#define RX_AE1_THRESH_FREE_SHIFT RX_AE_THRESH_FREE_SHIFT + +/** header parser registers **/ + +/* RX parser configuration register. + * DEFAULT: 0x1651004 + */ +#define REG_HP_CFG 0x4140 /* header parser + configuration reg */ +#define HP_CFG_PARSE_EN 0x00000001 /* enab header parsing */ +#define HP_CFG_NUM_CPU_MASK 0x000000FC /* # processors + 0 = 64. 0x3f = 63 */ +#define HP_CFG_NUM_CPU_SHIFT 2 +#define HP_CFG_SYN_INC_MASK 0x00000100 /* SYN bit won't increment + TCP seq # by one when + stored in FDBM */ +#define HP_CFG_TCP_THRESH_MASK 0x000FFE00 /* # bytes of TCP data + needed to be considered + for reassembly */ +#define HP_CFG_TCP_THRESH_SHIFT 9 + +/* access to RX Instruction RAM. 5-bit register/counter holds addr + * of 39 bit entry to be read/written. 32 LSB in _DATA_LOW. 7 MSB in _DATA_HI. + * RX_DMA_EN must be 0 for RX instr PIO access. DATA_HI should be last access + * of sequence. + * DEFAULT: undefined + */ +#define REG_HP_INSTR_RAM_ADDR 0x4144 /* HP instruction RAM + address */ +#define HP_INSTR_RAM_ADDR_MASK 0x01F /* 5-bit mask */ +#define REG_HP_INSTR_RAM_DATA_LOW 0x4148 /* HP instruction RAM + data low */ +#define HP_INSTR_RAM_LOW_OUTMASK_MASK 0x0000FFFF +#define HP_INSTR_RAM_LOW_OUTMASK_SHIFT 0 +#define HP_INSTR_RAM_LOW_OUTSHIFT_MASK 0x000F0000 +#define HP_INSTR_RAM_LOW_OUTSHIFT_SHIFT 16 +#define HP_INSTR_RAM_LOW_OUTEN_MASK 0x00300000 +#define HP_INSTR_RAM_LOW_OUTEN_SHIFT 20 +#define HP_INSTR_RAM_LOW_OUTARG_MASK 0xFFC00000 +#define HP_INSTR_RAM_LOW_OUTARG_SHIFT 22 +#define REG_HP_INSTR_RAM_DATA_MID 0x414C /* HP instruction RAM + data mid */ +#define HP_INSTR_RAM_MID_OUTARG_MASK 0x00000003 +#define HP_INSTR_RAM_MID_OUTARG_SHIFT 0 +#define HP_INSTR_RAM_MID_OUTOP_MASK 0x0000003C +#define HP_INSTR_RAM_MID_OUTOP_SHIFT 2 +#define HP_INSTR_RAM_MID_FNEXT_MASK 0x000007C0 +#define HP_INSTR_RAM_MID_FNEXT_SHIFT 6 +#define HP_INSTR_RAM_MID_FOFF_MASK 0x0003F800 +#define HP_INSTR_RAM_MID_FOFF_SHIFT 11 +#define HP_INSTR_RAM_MID_SNEXT_MASK 0x007C0000 +#define HP_INSTR_RAM_MID_SNEXT_SHIFT 18 +#define HP_INSTR_RAM_MID_SOFF_MASK 0x3F800000 +#define HP_INSTR_RAM_MID_SOFF_SHIFT 23 +#define HP_INSTR_RAM_MID_OP_MASK 0xC0000000 +#define HP_INSTR_RAM_MID_OP_SHIFT 30 +#define REG_HP_INSTR_RAM_DATA_HI 0x4150 /* HP instruction RAM + data high */ +#define HP_INSTR_RAM_HI_VAL_MASK 0x0000FFFF +#define HP_INSTR_RAM_HI_VAL_SHIFT 0 +#define HP_INSTR_RAM_HI_MASK_MASK 0xFFFF0000 +#define HP_INSTR_RAM_HI_MASK_SHIFT 16 + +/* PIO access into RX Header parser data RAM and flow database. + * 11-bit register. Data fills the LSB portion of bus if less than 32 bits. + * DATA_RAM: write RAM_FDB_DATA with index to access DATA_RAM. + * RAM bytes = 4*(x - 1) + [3:0]. e.g., 0 -> [3:0], 31 -> [123:120] + * FLOWDB: write DATA_RAM_FDB register and then read/write FDB1-12 to access + * flow database. + * RX_DMA_EN must be 0 for RX parser RAM PIO access. RX Parser RAM data reg + * should be the last write access of the write sequence. + * DEFAULT: undefined + */ +#define REG_HP_DATA_RAM_FDB_ADDR 0x4154 /* HP data and FDB + RAM address */ +#define HP_DATA_RAM_FDB_DATA_MASK 0x001F /* select 1 of 86 byte + locations in header + parser data ram to + read/write */ +#define HP_DATA_RAM_FDB_FDB_MASK 0x3F00 /* 1 of 64 353-bit locations + in the flow database */ +#define REG_HP_DATA_RAM_DATA 0x4158 /* HP data RAM data */ + +/* HP flow database registers: 1 - 12, 0x415C - 0x4188, 4 8-bit bytes + * FLOW_DB(1) = IP_SA[127:96], FLOW_DB(2) = IP_SA[95:64] + * FLOW_DB(3) = IP_SA[63:32], FLOW_DB(4) = IP_SA[31:0] + * FLOW_DB(5) = IP_DA[127:96], FLOW_DB(6) = IP_DA[95:64] + * FLOW_DB(7) = IP_DA[63:32], FLOW_DB(8) = IP_DA[31:0] + * FLOW_DB(9) = {TCP_SP[15:0],TCP_DP[15:0]} + * FLOW_DB(10) = bit 0 has value for flow valid + * FLOW_DB(11) = TCP_SEQ[63:32], FLOW_DB(12) = TCP_SEQ[31:0] + */ +#define REG_HP_FLOW_DB0 0x415C /* HP flow database 1 reg */ +#define REG_HP_FLOW_DBN(x) (REG_HP_FLOW_DB0 + (x)*4) + +/* diagnostics for RX Header Parser block. + * ASUN: the header parser state machine register is used for diagnostics + * purposes. however, the spec doesn't have any details on it. + */ +#define REG_HP_STATE_MACHINE 0x418C /* (ro) HP state machine */ +#define REG_HP_STATUS0 0x4190 /* (ro) HP status 1 */ +#define HP_STATUS0_SAP_MASK 0xFFFF0000 /* SAP */ +#define HP_STATUS0_L3_OFF_MASK 0x0000FE00 /* L3 offset */ +#define HP_STATUS0_LB_CPUNUM_MASK 0x000001F8 /* load balancing CPU + number */ +#define HP_STATUS0_HRP_OPCODE_MASK 0x00000007 /* HRP opcode */ + +#define REG_HP_STATUS1 0x4194 /* (ro) HP status 2 */ +#define HP_STATUS1_ACCUR2_MASK 0xE0000000 /* accu R2[6:4] */ +#define HP_STATUS1_FLOWID_MASK 0x1F800000 /* flow id */ +#define HP_STATUS1_TCP_OFF_MASK 0x007F0000 /* tcp payload offset */ +#define HP_STATUS1_TCP_SIZE_MASK 0x0000FFFF /* tcp payload size */ + +#define REG_HP_STATUS2 0x4198 /* (ro) HP status 3 */ +#define HP_STATUS2_ACCUR2_MASK 0xF0000000 /* accu R2[3:0] */ +#define HP_STATUS2_CSUM_OFF_MASK 0x07F00000 /* checksum start + start offset */ +#define HP_STATUS2_ACCUR1_MASK 0x000FE000 /* accu R1 */ +#define HP_STATUS2_FORCE_DROP 0x00001000 /* force drop */ +#define HP_STATUS2_BWO_REASSM 0x00000800 /* batching w/o + reassembly */ +#define HP_STATUS2_JH_SPLIT_EN 0x00000400 /* jumbo header split + enable */ +#define HP_STATUS2_FORCE_TCP_NOCHECK 0x00000200 /* force tcp no payload + check */ +#define HP_STATUS2_DATA_MASK_ZERO 0x00000100 /* mask of data length + equal to zero */ +#define HP_STATUS2_FORCE_TCP_CHECK 0x00000080 /* force tcp payload + chk */ +#define HP_STATUS2_MASK_TCP_THRESH 0x00000040 /* mask of payload + threshold */ +#define HP_STATUS2_NO_ASSIST 0x00000020 /* no assist */ +#define HP_STATUS2_CTRL_PACKET_FLAG 0x00000010 /* control packet flag */ +#define HP_STATUS2_TCP_FLAG_CHECK 0x00000008 /* tcp flag check */ +#define HP_STATUS2_SYN_FLAG 0x00000004 /* syn flag */ +#define HP_STATUS2_TCP_CHECK 0x00000002 /* tcp payload chk */ +#define HP_STATUS2_TCP_NOCHECK 0x00000001 /* tcp no payload chk */ + +/* BIST for header parser(HP) and flow database memories (FDBM). set _START + * to start BIST. controller clears _START on completion. _START can also + * be cleared to force termination of BIST. a bit set indicates that that + * memory passed its BIST. + */ +#define REG_HP_RAM_BIST 0x419C /* HP RAM BIST reg */ +#define HP_RAM_BIST_HP_DATA_PASS 0x80000000 /* HP data ram */ +#define HP_RAM_BIST_HP_INSTR0_PASS 0x40000000 /* HP instr ram 0 */ +#define HP_RAM_BIST_HP_INSTR1_PASS 0x20000000 /* HP instr ram 1 */ +#define HP_RAM_BIST_HP_INSTR2_PASS 0x10000000 /* HP instr ram 2 */ +#define HP_RAM_BIST_FDBM_AGE0_PASS 0x08000000 /* FDBM aging RAM0 */ +#define HP_RAM_BIST_FDBM_AGE1_PASS 0x04000000 /* FDBM aging RAM1 */ +#define HP_RAM_BIST_FDBM_FLOWID00_PASS 0x02000000 /* FDBM flowid RAM0 + bank 0 */ +#define HP_RAM_BIST_FDBM_FLOWID10_PASS 0x01000000 /* FDBM flowid RAM1 + bank 0 */ +#define HP_RAM_BIST_FDBM_FLOWID20_PASS 0x00800000 /* FDBM flowid RAM2 + bank 0 */ +#define HP_RAM_BIST_FDBM_FLOWID30_PASS 0x00400000 /* FDBM flowid RAM3 + bank 0 */ +#define HP_RAM_BIST_FDBM_FLOWID01_PASS 0x00200000 /* FDBM flowid RAM0 + bank 1 */ +#define HP_RAM_BIST_FDBM_FLOWID11_PASS 0x00100000 /* FDBM flowid RAM1 + bank 2 */ +#define HP_RAM_BIST_FDBM_FLOWID21_PASS 0x00080000 /* FDBM flowid RAM2 + bank 1 */ +#define HP_RAM_BIST_FDBM_FLOWID31_PASS 0x00040000 /* FDBM flowid RAM3 + bank 1 */ +#define HP_RAM_BIST_FDBM_TCPSEQ_PASS 0x00020000 /* FDBM tcp sequence + RAM */ +#define HP_RAM_BIST_SUMMARY 0x00000002 /* all BIST tests */ +#define HP_RAM_BIST_START 0x00000001 /* start/stop BIST */ + + +/** MAC registers. **/ +/* reset bits are set using a PIO write and self-cleared after the command + * execution has completed. + */ +#define REG_MAC_TX_RESET 0x6000 /* TX MAC software reset + command (default: 0x0) */ +#define REG_MAC_RX_RESET 0x6004 /* RX MAC software reset + command (default: 0x0) */ +/* execute a pause flow control frame transmission + DEFAULT: 0x0XXXX */ +#define REG_MAC_SEND_PAUSE 0x6008 /* send pause command reg */ +#define MAC_SEND_PAUSE_TIME_MASK 0x0000FFFF /* value of pause time + to be sent on network + in units of slot + times */ +#define MAC_SEND_PAUSE_SEND 0x00010000 /* send pause flow ctrl + frame on network */ + +/* bit set indicates that event occurred. auto-cleared when status register + * is read and have corresponding mask bits in mask register. events will + * trigger an interrupt if the corresponding mask bit is 0. + * status register default: 0x00000000 + * mask register default = 0xFFFFFFFF on reset + */ +#define REG_MAC_TX_STATUS 0x6010 /* TX MAC status reg */ +#define MAC_TX_FRAME_XMIT 0x0001 /* successful frame + transmision */ +#define MAC_TX_UNDERRUN 0x0002 /* terminated frame + transmission due to + data starvation in the + xmit data path */ +#define MAC_TX_MAX_PACKET_ERR 0x0004 /* frame exceeds max allowed + length passed to TX MAC + by the DMA engine */ +#define MAC_TX_COLL_NORMAL 0x0008 /* rollover of the normal + collision counter */ +#define MAC_TX_COLL_EXCESS 0x0010 /* rollover of the excessive + collision counter */ +#define MAC_TX_COLL_LATE 0x0020 /* rollover of the late + collision counter */ +#define MAC_TX_COLL_FIRST 0x0040 /* rollover of the first + collision counter */ +#define MAC_TX_DEFER_TIMER 0x0080 /* rollover of the defer + timer */ +#define MAC_TX_PEAK_ATTEMPTS 0x0100 /* rollover of the peak + attempts counter */ + +#define REG_MAC_RX_STATUS 0x6014 /* RX MAC status reg */ +#define MAC_RX_FRAME_RECV 0x0001 /* successful receipt of + a frame */ +#define MAC_RX_OVERFLOW 0x0002 /* dropped frame due to + RX FIFO overflow */ +#define MAC_RX_FRAME_COUNT 0x0004 /* rollover of receive frame + counter */ +#define MAC_RX_ALIGN_ERR 0x0008 /* rollover of alignment + error counter */ +#define MAC_RX_CRC_ERR 0x0010 /* rollover of crc error + counter */ +#define MAC_RX_LEN_ERR 0x0020 /* rollover of length + error counter */ +#define MAC_RX_VIOL_ERR 0x0040 /* rollover of code + violation error */ + +/* DEFAULT: 0xXXXX0000 on reset */ +#define REG_MAC_CTRL_STATUS 0x6018 /* MAC control status reg */ +#define MAC_CTRL_PAUSE_RECEIVED 0x00000001 /* successful + reception of a + pause control + frame */ +#define MAC_CTRL_PAUSE_STATE 0x00000002 /* MAC has made a + transition from + "not paused" to + "paused" */ +#define MAC_CTRL_NOPAUSE_STATE 0x00000004 /* MAC has made a + transition from + "paused" to "not + paused" */ +#define MAC_CTRL_PAUSE_TIME_MASK 0xFFFF0000 /* value of pause time + operand that was + received in the last + pause flow control + frame */ + +/* layout identical to TX MAC[8:0] */ +#define REG_MAC_TX_MASK 0x6020 /* TX MAC mask reg */ +/* layout identical to RX MAC[6:0] */ +#define REG_MAC_RX_MASK 0x6024 /* RX MAC mask reg */ +/* layout identical to CTRL MAC[2:0] */ +#define REG_MAC_CTRL_MASK 0x6028 /* MAC control mask reg */ + +/* to ensure proper operation, CFG_EN must be cleared to 0 and a delay + * imposed before writes to other bits in the TX_MAC_CFG register or any of + * the MAC parameters is performed. delay dependent upon time required to + * transmit a maximum size frame (= MAC_FRAMESIZE_MAX*8/Mbps). e.g., + * the delay for a 1518-byte frame on a 100Mbps network is 125us. + * alternatively, just poll TX_CFG_EN until it reads back as 0. + * NOTE: on half-duplex 1Gbps, TX_CFG_CARRIER_EXTEND and + * RX_CFG_CARRIER_EXTEND should be set and the SLOT_TIME register should + * be 0x200 (slot time of 512 bytes) + */ +#define REG_MAC_TX_CFG 0x6030 /* TX MAC config reg */ +#define MAC_TX_CFG_EN 0x0001 /* enable TX MAC. 0 will + force TXMAC state + machine to remain in + idle state or to + transition to idle state + on completion of an + ongoing packet. */ +#define MAC_TX_CFG_IGNORE_CARRIER 0x0002 /* disable CSMA/CD deferral + process. set to 1 when + full duplex and 0 when + half duplex */ +#define MAC_TX_CFG_IGNORE_COLL 0x0004 /* disable CSMA/CD backoff + algorithm. set to 1 when + full duplex and 0 when + half duplex */ +#define MAC_TX_CFG_IPG_EN 0x0008 /* enable extension of the + Rx-to-TX IPG. after + receiving a frame, TX + MAC will reset its + deferral process to + carrier sense for the + amount of time = IPG0 + + IPG1 and commit to + transmission for time + specified in IPG2. when + 0 or when xmitting frames + back-to-pack (Tx-to-Tx + IPG), TX MAC ignores + IPG0 and will only use + IPG1 for deferral time. + IPG2 still used. */ +#define MAC_TX_CFG_NEVER_GIVE_UP_EN 0x0010 /* TX MAC will not easily + give up on frame + xmission. if backoff + algorithm reaches the + ATTEMPT_LIMIT, it will + clear attempts counter + and continue trying to + send the frame as + specified by + GIVE_UP_LIM. when 0, + TX MAC will execute + standard CSMA/CD prot. */ +#define MAC_TX_CFG_NEVER_GIVE_UP_LIM 0x0020 /* when set, TX MAC will + continue to try to xmit + until successful. when + 0, TX MAC will continue + to try xmitting until + successful or backoff + algorithm reaches + ATTEMPT_LIMIT*16 */ +#define MAC_TX_CFG_NO_BACKOFF 0x0040 /* modify CSMA/CD to disable + backoff algorithm. TX + MAC will not back off + after a xmission attempt + that resulted in a + collision. */ +#define MAC_TX_CFG_SLOW_DOWN 0x0080 /* modify CSMA/CD so that + deferral process is reset + in response to carrier + sense during the entire + duration of IPG. TX MAC + will only commit to frame + xmission after frame + xmission has actually + begun. */ +#define MAC_TX_CFG_NO_FCS 0x0100 /* TX MAC will not generate + CRC for all xmitted + packets. when clear, CRC + generation is dependent + upon NO_CRC bit in the + xmit control word from + TX DMA */ +#define MAC_TX_CFG_CARRIER_EXTEND 0x0200 /* enables xmit part of the + carrier extension + feature. this allows for + longer collision domains + by extending the carrier + and collision window + from the end of FCS until + the end of the slot time + if necessary. Required + for half-duplex at 1Gbps, + clear otherwise. */ + +/* when CRC is not stripped, reassembly packets will not contain the CRC. + * these will be stripped by HRP because it reassembles layer 4 data, and the + * CRC is layer 2. however, non-reassembly packets will still contain the CRC + * when passed to the host. to ensure proper operation, need to wait 3.2ms + * after clearing RX_CFG_EN before writing to any other RX MAC registers + * or other MAC parameters. alternatively, poll RX_CFG_EN until it clears + * to 0. similary, HASH_FILTER_EN and ADDR_FILTER_EN have the same + * restrictions as CFG_EN. + */ +#define REG_MAC_RX_CFG 0x6034 /* RX MAC config reg */ +#define MAC_RX_CFG_EN 0x0001 /* enable RX MAC */ +#define MAC_RX_CFG_STRIP_PAD 0x0002 /* always program to 0. + feature not supported */ +#define MAC_RX_CFG_STRIP_FCS 0x0004 /* RX MAC will strip the + last 4 bytes of a + received frame. */ +#define MAC_RX_CFG_PROMISC_EN 0x0008 /* promiscuous mode */ +#define MAC_RX_CFG_PROMISC_GROUP_EN 0x0010 /* accept all valid + multicast frames (group + bit in DA field set) */ +#define MAC_RX_CFG_HASH_FILTER_EN 0x0020 /* use hash table to filter + multicast addresses */ +#define MAC_RX_CFG_ADDR_FILTER_EN 0x0040 /* cause RX MAC to use + address filtering regs + to filter both unicast + and multicast + addresses */ +#define MAC_RX_CFG_DISABLE_DISCARD 0x0080 /* pass errored frames to + RX DMA by setting BAD + bit but not Abort bit + in the status. CRC, + framing, and length errs + will not increment + error counters. frames + which don't match dest + addr will be passed up + w/ BAD bit set. */ +#define MAC_RX_CFG_CARRIER_EXTEND 0x0100 /* enable reception of + packet bursts generated + by carrier extension + with packet bursting + senders. only applies + to half-duplex 1Gbps */ + +/* DEFAULT: 0x0 */ +#define REG_MAC_CTRL_CFG 0x6038 /* MAC control config reg */ +#define MAC_CTRL_CFG_SEND_PAUSE_EN 0x0001 /* respond to requests for + sending pause flow ctrl + frames */ +#define MAC_CTRL_CFG_RECV_PAUSE_EN 0x0002 /* respond to received + pause flow ctrl frames */ +#define MAC_CTRL_CFG_PASS_CTRL 0x0004 /* pass valid MAC ctrl + packets to RX DMA */ + +/* to ensure proper operation, a global initialization sequence should be + * performed when a loopback config is entered or exited. if programmed after + * a hw or global sw reset, RX/TX MAC software reset and initialization + * should be done to ensure stable clocking. + * DEFAULT: 0x0 + */ +#define REG_MAC_XIF_CFG 0x603C /* XIF config reg */ +#define MAC_XIF_TX_MII_OUTPUT_EN 0x0001 /* enable output drivers + on MII xmit bus */ +#define MAC_XIF_MII_INT_LOOPBACK 0x0002 /* loopback GMII xmit data + path to GMII recv data + path. phy mode register + clock selection must be + set to GMII mode and + GMII_MODE should be set + to 1. in loopback mode, + REFCLK will drive the + entire mac core. 0 for + normal operation. */ +#define MAC_XIF_DISABLE_ECHO 0x0004 /* disables receive data + path during packet + xmission. clear to 0 + in any full duplex mode, + in any loopback mode, + or in half-duplex SERDES + or SLINK modes. set when + in half-duplex when + using external phy. */ +#define MAC_XIF_GMII_MODE 0x0008 /* MAC operates with GMII + clocks and datapath */ +#define MAC_XIF_MII_BUFFER_OUTPUT_EN 0x0010 /* MII_BUF_EN pin. enable + external tristate buffer + on the MII receive + bus. */ +#define MAC_XIF_LINK_LED 0x0020 /* LINKLED# active (low) */ +#define MAC_XIF_FDPLX_LED 0x0040 /* FDPLXLED# active (low) */ + +#define REG_MAC_IPG0 0x6040 /* inter-packet gap0 reg. + recommended: 0x00 */ +#define REG_MAC_IPG1 0x6044 /* inter-packet gap1 reg + recommended: 0x08 */ +#define REG_MAC_IPG2 0x6048 /* inter-packet gap2 reg + recommended: 0x04 */ +#define REG_MAC_SLOT_TIME 0x604C /* slot time reg + recommended: 0x40 */ +#define REG_MAC_FRAMESIZE_MIN 0x6050 /* min frame size reg + recommended: 0x40 */ + +/* FRAMESIZE_MAX holds both the max frame size as well as the max burst size. + * recommended value: 0x2000.05EE + */ +#define REG_MAC_FRAMESIZE_MAX 0x6054 /* max frame size reg */ +#define MAC_FRAMESIZE_MAX_BURST_MASK 0x3FFF0000 /* max burst size */ +#define MAC_FRAMESIZE_MAX_BURST_SHIFT 16 +#define MAC_FRAMESIZE_MAX_FRAME_MASK 0x00007FFF /* max frame size */ +#define MAC_FRAMESIZE_MAX_FRAME_SHIFT 0 +#define REG_MAC_PA_SIZE 0x6058 /* PA size reg. number of + preamble bytes that the + TX MAC will xmit at the + beginning of each frame + value should be 2 or + greater. recommended + value: 0x07 */ +#define REG_MAC_JAM_SIZE 0x605C /* jam size reg. duration + of jam in units of media + byte time. recommended + value: 0x04 */ +#define REG_MAC_ATTEMPT_LIMIT 0x6060 /* attempt limit reg. # + of attempts TX MAC will + make to xmit a frame + before it resets its + attempts counter. after + the limit has been + reached, TX MAC may or + may not drop the frame + dependent upon value + in TX_MAC_CFG. + recommended + value: 0x10 */ +#define REG_MAC_CTRL_TYPE 0x6064 /* MAC control type reg. + type field of a MAC + ctrl frame. recommended + value: 0x8808 */ + +/* mac address registers: 0 - 44, 0x6080 - 0x6130, 4 8-bit bytes. + * register contains comparison + * 0 16 MSB of primary MAC addr [47:32] of DA field + * 1 16 middle bits "" [31:16] of DA field + * 2 16 LSB "" [15:0] of DA field + * 3*x 16MSB of alt MAC addr 1-15 [47:32] of DA field + * 4*x 16 middle bits "" [31:16] + * 5*x 16 LSB "" [15:0] + * 42 16 MSB of MAC CTRL addr [47:32] of DA. + * 43 16 middle bits "" [31:16] + * 44 16 LSB "" [15:0] + * MAC CTRL addr must be the reserved multicast addr for MAC CTRL frames. + * if there is a match, MAC will set the bit for alternative address + * filter pass [15] + + * here is the map of registers given MAC address notation: a:b:c:d:e:f + * ab cd ef + * primary addr reg 2 reg 1 reg 0 + * alt addr 1 reg 5 reg 4 reg 3 + * alt addr x reg 5*x reg 4*x reg 3*x + * ctrl addr reg 44 reg 43 reg 42 + */ +#define REG_MAC_ADDR0 0x6080 /* MAC address 0 reg */ +#define REG_MAC_ADDRN(x) (REG_MAC_ADDR0 + (x)*4) +#define REG_MAC_ADDR_FILTER0 0x614C /* address filter 0 reg + [47:32] */ +#define REG_MAC_ADDR_FILTER1 0x6150 /* address filter 1 reg + [31:16] */ +#define REG_MAC_ADDR_FILTER2 0x6154 /* address filter 2 reg + [15:0] */ +#define REG_MAC_ADDR_FILTER2_1_MASK 0x6158 /* address filter 2 and 1 + mask reg. 8-bit reg + contains nibble mask for + reg 2 and 1. */ +#define REG_MAC_ADDR_FILTER0_MASK 0x615C /* address filter 0 mask + reg */ + +/* hash table registers: 0 - 15, 0x6160 - 0x619C, 4 8-bit bytes + * 16-bit registers contain bits of the hash table. + * reg x -> [16*(15 - x) + 15 : 16*(15 - x)]. + * e.g., 15 -> [15:0], 0 -> [255:240] + */ +#define REG_MAC_HASH_TABLE0 0x6160 /* hash table 0 reg */ +#define REG_MAC_HASH_TABLEN(x) (REG_MAC_HASH_TABLE0 + (x)*4) + +/* statistics registers. these registers generate an interrupt on + * overflow. recommended initialization: 0x0000. most are 16-bits except + * for PEAK_ATTEMPTS register which is 8 bits. + */ +#define REG_MAC_COLL_NORMAL 0x61A0 /* normal collision + counter. */ +#define REG_MAC_COLL_FIRST 0x61A4 /* first attempt + successful collision + counter */ +#define REG_MAC_COLL_EXCESS 0x61A8 /* excessive collision + counter */ +#define REG_MAC_COLL_LATE 0x61AC /* late collision counter */ +#define REG_MAC_TIMER_DEFER 0x61B0 /* defer timer. time base + is the media byte + clock/256 */ +#define REG_MAC_ATTEMPTS_PEAK 0x61B4 /* peak attempts reg */ +#define REG_MAC_RECV_FRAME 0x61B8 /* receive frame counter */ +#define REG_MAC_LEN_ERR 0x61BC /* length error counter */ +#define REG_MAC_ALIGN_ERR 0x61C0 /* alignment error counter */ +#define REG_MAC_FCS_ERR 0x61C4 /* FCS error counter */ +#define REG_MAC_RX_CODE_ERR 0x61C8 /* RX code violation + error counter */ + +/* misc registers */ +#define REG_MAC_RANDOM_SEED 0x61CC /* random number seed reg. + 10-bit register used as a + seed for the random number + generator for the CSMA/CD + backoff algorithm. only + programmed after power-on + reset and should be a + random value which has a + high likelihood of being + unique for each MAC + attached to a network + segment (e.g., 10 LSB of + MAC address) */ + +/* ASUN: there's a PAUSE_TIMER (ro) described, but it's not in the address + * map + */ + +/* 27-bit register has the current state for key state machines in the MAC */ +#define REG_MAC_STATE_MACHINE 0x61D0 /* (ro) state machine reg */ +#define MAC_SM_RLM_MASK 0x07800000 +#define MAC_SM_RLM_SHIFT 23 +#define MAC_SM_RX_FC_MASK 0x00700000 +#define MAC_SM_RX_FC_SHIFT 20 +#define MAC_SM_TLM_MASK 0x000F0000 +#define MAC_SM_TLM_SHIFT 16 +#define MAC_SM_ENCAP_SM_MASK 0x0000F000 +#define MAC_SM_ENCAP_SM_SHIFT 12 +#define MAC_SM_TX_REQ_MASK 0x00000C00 +#define MAC_SM_TX_REQ_SHIFT 10 +#define MAC_SM_TX_FC_MASK 0x000003C0 +#define MAC_SM_TX_FC_SHIFT 6 +#define MAC_SM_FIFO_WRITE_SEL_MASK 0x00000038 +#define MAC_SM_FIFO_WRITE_SEL_SHIFT 3 +#define MAC_SM_TX_FIFO_EMPTY_MASK 0x00000007 +#define MAC_SM_TX_FIFO_EMPTY_SHIFT 0 + +/** MIF registers. the MIF can be programmed in either bit-bang or + * frame mode. + **/ +#define REG_MIF_BIT_BANG_CLOCK 0x6200 /* MIF bit-bang clock. + 1 -> 0 will generate a + rising edge. 0 -> 1 will + generate a falling edge. */ +#define REG_MIF_BIT_BANG_DATA 0x6204 /* MIF bit-bang data. 1-bit + register generates data */ +#define REG_MIF_BIT_BANG_OUTPUT_EN 0x6208 /* MIF bit-bang output + enable. enable when + xmitting data from MIF to + transceiver. */ + +/* 32-bit register serves as an instruction register when the MIF is + * programmed in frame mode. load this register w/ a valid instruction + * (as per IEEE 802.3u MII spec). poll this register to check for instruction + * execution completion. during a read operation, this register will also + * contain the 16-bit data returned by the tranceiver. unless specified + * otherwise, fields are considered "don't care" when polling for + * completion. + */ +#define REG_MIF_FRAME 0x620C /* MIF frame/output reg */ +#define MIF_FRAME_START_MASK 0xC0000000 /* start of frame. + load w/ 01 when + issuing an instr */ +#define MIF_FRAME_ST 0x40000000 /* STart of frame */ +#define MIF_FRAME_OPCODE_MASK 0x30000000 /* opcode. 01 for a + write. 10 for a + read */ +#define MIF_FRAME_OP_READ 0x20000000 /* read OPcode */ +#define MIF_FRAME_OP_WRITE 0x10000000 /* write OPcode */ +#define MIF_FRAME_PHY_ADDR_MASK 0x0F800000 /* phy address. when + issuing an instr, + this field should be + loaded w/ the XCVR + addr */ +#define MIF_FRAME_PHY_ADDR_SHIFT 23 +#define MIF_FRAME_REG_ADDR_MASK 0x007C0000 /* register address. + when issuing an instr, + addr of register + to be read/written */ +#define MIF_FRAME_REG_ADDR_SHIFT 18 +#define MIF_FRAME_TURN_AROUND_MSB 0x00020000 /* turn around, MSB. + when issuing an instr, + set this bit to 1 */ +#define MIF_FRAME_TURN_AROUND_LSB 0x00010000 /* turn around, LSB. + when issuing an instr, + set this bit to 0. + when polling for + completion, 1 means + that instr execution + has been completed */ +#define MIF_FRAME_DATA_MASK 0x0000FFFF /* instruction payload + load with 16-bit data + to be written in + transceiver reg for a + write. doesn't matter + in a read. when + polling for + completion, field is + "don't care" for write + and 16-bit data + returned by the + transceiver for a + read (if valid bit + is set) */ +#define REG_MIF_CFG 0x6210 /* MIF config reg */ +#define MIF_CFG_PHY_SELECT 0x0001 /* 1 -> select MDIO_1 + 0 -> select MDIO_0 */ +#define MIF_CFG_POLL_EN 0x0002 /* enable polling + mechanism. if set, + BB_MODE should be 0 */ +#define MIF_CFG_BB_MODE 0x0004 /* 1 -> bit-bang mode + 0 -> frame mode */ +#define MIF_CFG_POLL_REG_MASK 0x00F8 /* register address to be + used by polling mode. + only meaningful if POLL_EN + is set to 1 */ +#define MIF_CFG_POLL_REG_SHIFT 3 +#define MIF_CFG_MDIO_0 0x0100 /* (ro) dual purpose. + when MDIO_0 is idle, + 1 -> tranceiver is + connected to MDIO_0. + when MIF is communicating + w/ MDIO_0 in bit-bang + mode, this bit indicates + the incoming bit stream + during a read op */ +#define MIF_CFG_MDIO_1 0x0200 /* (ro) dual purpose. + when MDIO_1 is idle, + 1 -> transceiver is + connected to MDIO_1. + when MIF is communicating + w/ MDIO_1 in bit-bang + mode, this bit indicates + the incoming bit stream + during a read op */ +#define MIF_CFG_POLL_PHY_MASK 0x7C00 /* tranceiver address to + be polled */ +#define MIF_CFG_POLL_PHY_SHIFT 10 + +/* 16-bit register used to determine which bits in the POLL_STATUS portion of + * the MIF_STATUS register will cause an interrupt. if a mask bit is 0, + * corresponding bit of the POLL_STATUS will generate a MIF interrupt when + * set. DEFAULT: 0xFFFF + */ +#define REG_MIF_MASK 0x6214 /* MIF mask reg */ + +/* 32-bit register used when in poll mode. auto-cleared after being read */ +#define REG_MIF_STATUS 0x6218 /* MIF status reg */ +#define MIF_STATUS_POLL_DATA_MASK 0xFFFF0000 /* poll data contains + the "latest image" + update of the XCVR + reg being read */ +#define MIF_STATUS_POLL_DATA_SHIFT 16 +#define MIF_STATUS_POLL_STATUS_MASK 0x0000FFFF /* poll status indicates + which bits in the + POLL_DATA field have + changed since the + MIF_STATUS reg was + last read */ +#define MIF_STATUS_POLL_STATUS_SHIFT 0 + +/* 7-bit register has current state for all state machines in the MIF */ +#define REG_MIF_STATE_MACHINE 0x621C /* MIF state machine reg */ +#define MIF_SM_CONTROL_MASK 0x07 /* control state machine + state */ +#define MIF_SM_EXECUTION_MASK 0x60 /* execution state machine + state */ + +/** PCS/Serialink. the following registers are equivalent to the standard + * MII management registers except that they're directly mapped in + * Cassini's register space. + **/ + +/* the auto-negotiation enable bit should be programmed the same at + * the link partner as in the local device to enable auto-negotiation to + * complete. when that bit is reprogrammed, auto-neg/manual config is + * restarted automatically. + * DEFAULT: 0x1040 + */ +#define REG_PCS_MII_CTRL 0x9000 /* PCS MII control reg */ +#define PCS_MII_CTRL_1000_SEL 0x0040 /* reads 1. ignored on + writes */ +#define PCS_MII_CTRL_COLLISION_TEST 0x0080 /* COL signal at the PCS + to MAC interface is + activated regardless + of activity */ +#define PCS_MII_CTRL_DUPLEX 0x0100 /* forced 0x0. PCS + behaviour same for + half and full dplx */ +#define PCS_MII_RESTART_AUTONEG 0x0200 /* self clearing. + restart auto- + negotiation */ +#define PCS_MII_ISOLATE 0x0400 /* read as 0. ignored + on writes */ +#define PCS_MII_POWER_DOWN 0x0800 /* read as 0. ignored + on writes */ +#define PCS_MII_AUTONEG_EN 0x1000 /* default 1. PCS goes + through automatic + link config before it + can be used. when 0, + link can be used + w/out any link config + phase */ +#define PCS_MII_10_100_SEL 0x2000 /* read as 0. ignored on + writes */ +#define PCS_MII_RESET 0x8000 /* reset PCS. self-clears + when done */ + +/* DEFAULT: 0x0108 */ +#define REG_PCS_MII_STATUS 0x9004 /* PCS MII status reg */ +#define PCS_MII_STATUS_EXTEND_CAP 0x0001 /* reads 0 */ +#define PCS_MII_STATUS_JABBER_DETECT 0x0002 /* reads 0 */ +#define PCS_MII_STATUS_LINK_STATUS 0x0004 /* 1 -> link up. + 0 -> link down. 0 is + latched so that 0 is + kept until read. read + 2x to determine if the + link has gone up again */ +#define PCS_MII_STATUS_AUTONEG_ABLE 0x0008 /* reads 1 (able to perform + auto-neg) */ +#define PCS_MII_STATUS_REMOTE_FAULT 0x0010 /* 1 -> remote fault detected + from received link code + word. only valid after + auto-neg completed */ +#define PCS_MII_STATUS_AUTONEG_COMP 0x0020 /* 1 -> auto-negotiation + completed + 0 -> auto-negotiation not + completed */ +#define PCS_MII_STATUS_EXTEND_STATUS 0x0100 /* reads as 1. used as an + indication that this is + a 1000 Base-X PHY. writes + to it are ignored */ + +/* used during auto-negotiation. + * DEFAULT: 0x00E0 + */ +#define REG_PCS_MII_ADVERT 0x9008 /* PCS MII advertisement + reg */ +#define PCS_MII_ADVERT_FD 0x0020 /* advertise full duplex + 1000 Base-X */ +#define PCS_MII_ADVERT_HD 0x0040 /* advertise half-duplex + 1000 Base-X */ +#define PCS_MII_ADVERT_SYM_PAUSE 0x0080 /* advertise PAUSE + symmetric capability */ +#define PCS_MII_ADVERT_ASYM_PAUSE 0x0100 /* advertises PAUSE + asymmetric capability */ +#define PCS_MII_ADVERT_RF_MASK 0x3000 /* remote fault. write bit13 + to optionally indicate to + link partner that chip is + going off-line. bit12 will + get set when signal + detect == FAIL and will + remain set until + successful negotiation */ +#define PCS_MII_ADVERT_ACK 0x4000 /* (ro) */ +#define PCS_MII_ADVERT_NEXT_PAGE 0x8000 /* (ro) forced 0x0 */ + +/* contents updated as a result of autonegotiation. layout and definitions + * identical to PCS_MII_ADVERT + */ +#define REG_PCS_MII_LPA 0x900C /* PCS MII link partner + ability reg */ +#define PCS_MII_LPA_FD PCS_MII_ADVERT_FD +#define PCS_MII_LPA_HD PCS_MII_ADVERT_HD +#define PCS_MII_LPA_SYM_PAUSE PCS_MII_ADVERT_SYM_PAUSE +#define PCS_MII_LPA_ASYM_PAUSE PCS_MII_ADVERT_ASYM_PAUSE +#define PCS_MII_LPA_RF_MASK PCS_MII_ADVERT_RF_MASK +#define PCS_MII_LPA_ACK PCS_MII_ADVERT_ACK +#define PCS_MII_LPA_NEXT_PAGE PCS_MII_ADVERT_NEXT_PAGE + +/* DEFAULT: 0x0 */ +#define REG_PCS_CFG 0x9010 /* PCS config reg */ +#define PCS_CFG_EN 0x01 /* enable PCS. must be + 0 when modifying + PCS_MII_ADVERT */ +#define PCS_CFG_SD_OVERRIDE 0x02 /* sets signal detect to + OK. bit is + non-resettable */ +#define PCS_CFG_SD_ACTIVE_LOW 0x04 /* changes interpretation + of optical signal to make + signal detect okay when + signal is low */ +#define PCS_CFG_JITTER_STUDY_MASK 0x18 /* used to make jitter + measurements. a single + code group is xmitted + regularly. + 0x0 = normal operation + 0x1 = high freq test + pattern, D21.5 + 0x2 = low freq test + pattern, K28.7 + 0x3 = reserved */ +#define PCS_CFG_10MS_TIMER_OVERRIDE 0x20 /* shortens 10-20ms auto- + negotiation timer to + a few cycles for test + purposes */ + +/* used for diagnostic purposes. bits 20-22 autoclear on read */ +#define REG_PCS_STATE_MACHINE 0x9014 /* (ro) PCS state machine + and diagnostic reg */ +#define PCS_SM_TX_STATE_MASK 0x0000000F /* 0 and 1 indicate + xmission of idle. + otherwise, xmission of + a packet */ +#define PCS_SM_RX_STATE_MASK 0x000000F0 /* 0 indicates reception + of idle. otherwise, + reception of packet */ +#define PCS_SM_WORD_SYNC_STATE_MASK 0x00000700 /* 0 indicates loss of + sync */ +#define PCS_SM_SEQ_DETECT_STATE_MASK 0x00001800 /* cycling through 0-3 + indicates reception of + Config codes. cycling + through 0-1 indicates + reception of idles */ +#define PCS_SM_LINK_STATE_MASK 0x0001E000 +#define SM_LINK_STATE_UP 0x00016000 /* link state is up */ + +#define PCS_SM_LOSS_LINK_C 0x00100000 /* loss of link due to + recept of Config + codes */ +#define PCS_SM_LOSS_LINK_SYNC 0x00200000 /* loss of link due to + loss of sync */ +#define PCS_SM_LOSS_SIGNAL_DETECT 0x00400000 /* signal detect goes + from OK to FAIL. bit29 + will also be set if + this is set */ +#define PCS_SM_NO_LINK_BREAKLINK 0x01000000 /* link not up due to + receipt of breaklink + C codes from partner. + C codes w/ 0 content + received triggering + start/restart of + autonegotiation. + should be sent for + no longer than 20ms */ +#define PCS_SM_NO_LINK_SERDES 0x02000000 /* serdes being + initialized. see serdes + state reg */ +#define PCS_SM_NO_LINK_C 0x04000000 /* C codes not stable or + not received */ +#define PCS_SM_NO_LINK_SYNC 0x08000000 /* word sync not + achieved */ +#define PCS_SM_NO_LINK_WAIT_C 0x10000000 /* waiting for C codes + w/ ack bit set */ +#define PCS_SM_NO_LINK_NO_IDLE 0x20000000 /* link partner continues + to send C codes + instead of idle + symbols or pkt data */ + +/* this register indicates interrupt changes in specific PCS MII status bits. + * PCS_INT may be masked at the ISR level. only a single bit is implemented + * for link status change. + */ +#define REG_PCS_INTR_STATUS 0x9018 /* PCS interrupt status */ +#define PCS_INTR_STATUS_LINK_CHANGE 0x04 /* link status has changed + since last read */ + +/* control which network interface is used. no more than one bit should + * be set. + * DEFAULT: none + */ +#define REG_PCS_DATAPATH_MODE 0x9050 /* datapath mode reg */ +#define PCS_DATAPATH_MODE_MII 0x00 /* PCS is not used and + MII/GMII is selected. + selection between MII and + GMII is controlled by + XIF_CFG */ +#define PCS_DATAPATH_MODE_SERDES 0x02 /* PCS is used via the + 10-bit interface */ + +/* input to serdes chip or serialink block */ +#define REG_PCS_SERDES_CTRL 0x9054 /* serdes control reg */ +#define PCS_SERDES_CTRL_LOOPBACK 0x01 /* enable loopback on + serdes interface */ +#define PCS_SERDES_CTRL_SYNCD_EN 0x02 /* enable sync carrier + detection. should be + 0x0 for normal + operation */ +#define PCS_SERDES_CTRL_LOCKREF 0x04 /* frequency-lock RBC[0:1] + to REFCLK when set. + when clear, receiver + clock locks to incoming + serial data */ + +/* multiplex test outputs into the PROM address (PA_3 through PA_0) pins. + * should be 0x0 for normal operations. + * 0b000 normal operation, PROM address[3:0] selected + * 0b001 rxdma req, rxdma ack, rxdma ready, rxdma read + * 0b010 rxmac req, rx ack, rx tag, rx clk shared + * 0b011 txmac req, tx ack, tx tag, tx retry req + * 0b100 tx tp3, tx tp2, tx tp1, tx tp0 + * 0b101 R period RX, R period TX, R period HP, R period BIM + * DEFAULT: 0x0 + */ +#define REG_PCS_SHARED_OUTPUT_SEL 0x9058 /* shared output select */ +#define PCS_SOS_PROM_ADDR_MASK 0x0007 + +/* used for diagnostics. this register indicates progress of the SERDES + * boot up. + * 0b00 undergoing reset + * 0b01 waiting 500us while lockrefn is asserted + * 0b10 waiting for comma detect + * 0b11 receive data is synchronized + * DEFAULT: 0x0 + */ +#define REG_PCS_SERDES_STATE 0x905C /* (ro) serdes state */ +#define PCS_SERDES_STATE_MASK 0x03 + +/* used for diagnostics. indicates number of packets transmitted or received. + * counters rollover w/out generating an interrupt. + * DEFAULT: 0x0 + */ +#define REG_PCS_PACKET_COUNT 0x9060 /* (ro) PCS packet counter */ +#define PCS_PACKET_COUNT_TX 0x000007FF /* pkts xmitted by PCS */ +#define PCS_PACKET_COUNT_RX 0x07FF0000 /* pkts recvd by PCS + whether they + encountered an error + or not */ + +/** LocalBus Devices. the following provides run-time access to the + * Cassini's PROM + ***/ +#define REG_EXPANSION_ROM_RUN_START 0x100000 /* expansion rom run time + access */ +#define REG_EXPANSION_ROM_RUN_END 0x17FFFF + +#define REG_SECOND_LOCALBUS_START 0x180000 /* secondary local bus + device */ +#define REG_SECOND_LOCALBUS_END 0x1FFFFF + +/* entropy device */ +#define REG_ENTROPY_START REG_SECOND_LOCALBUS_START +#define REG_ENTROPY_DATA (REG_ENTROPY_START + 0x00) +#define REG_ENTROPY_STATUS (REG_ENTROPY_START + 0x04) +#define ENTROPY_STATUS_DRDY 0x01 +#define ENTROPY_STATUS_BUSY 0x02 +#define ENTROPY_STATUS_CIPHER 0x04 +#define ENTROPY_STATUS_BYPASS_MASK 0x18 +#define REG_ENTROPY_MODE (REG_ENTROPY_START + 0x05) +#define ENTROPY_MODE_KEY_MASK 0x07 +#define ENTROPY_MODE_ENCRYPT 0x40 +#define REG_ENTROPY_RAND_REG (REG_ENTROPY_START + 0x06) +#define REG_ENTROPY_RESET (REG_ENTROPY_START + 0x07) +#define ENTROPY_RESET_DES_IO 0x01 +#define ENTROPY_RESET_STC_MODE 0x02 +#define ENTROPY_RESET_KEY_CACHE 0x04 +#define ENTROPY_RESET_IV 0x08 +#define REG_ENTROPY_IV (REG_ENTROPY_START + 0x08) +#define REG_ENTROPY_KEY0 (REG_ENTROPY_START + 0x10) +#define REG_ENTROPY_KEYN(x) (REG_ENTROPY_KEY0 + 4*(x)) + +/* phys of interest w/ their special mii registers */ +#define PHY_LUCENT_B0 0x00437421 +#define LUCENT_MII_REG 0x1F + +#define PHY_NS_DP83065 0x20005c78 +#define DP83065_MII_MEM 0x16 +#define DP83065_MII_REGD 0x1D +#define DP83065_MII_REGE 0x1E + +#define PHY_BROADCOM_5411 0x00206071 +#define PHY_BROADCOM_B0 0x00206050 +#define BROADCOM_MII_REG4 0x14 +#define BROADCOM_MII_REG5 0x15 +#define BROADCOM_MII_REG7 0x17 +#define BROADCOM_MII_REG8 0x18 + +#define CAS_MII_ANNPTR 0x07 +#define CAS_MII_ANNPRR 0x08 +#define CAS_MII_1000_CTRL 0x09 +#define CAS_MII_1000_STATUS 0x0A +#define CAS_MII_1000_EXTEND 0x0F + +#define CAS_BMSR_1000_EXTEND 0x0100 /* supports 1000Base-T extended status */ +/* + * if autoneg is disabled, here's the table: + * BMCR_SPEED100 = 100Mbps + * BMCR_SPEED1000 = 1000Mbps + * ~(BMCR_SPEED100 | BMCR_SPEED1000) = 10Mbps + */ +#define CAS_BMCR_SPEED1000 0x0040 /* Select 1000Mbps */ + +#define CAS_ADVERTISE_1000HALF 0x0100 +#define CAS_ADVERTISE_1000FULL 0x0200 +#define CAS_ADVERTISE_PAUSE 0x0400 +#define CAS_ADVERTISE_ASYM_PAUSE 0x0800 + +/* regular lpa register */ +#define CAS_LPA_PAUSE CAS_ADVERTISE_PAUSE +#define CAS_LPA_ASYM_PAUSE CAS_ADVERTISE_ASYM_PAUSE + +/* 1000_STATUS register */ +#define CAS_LPA_1000HALF 0x0400 +#define CAS_LPA_1000FULL 0x0800 + +#define CAS_EXTEND_1000XFULL 0x8000 +#define CAS_EXTEND_1000XHALF 0x4000 +#define CAS_EXTEND_1000TFULL 0x2000 +#define CAS_EXTEND_1000THALF 0x1000 + +/* cassini header parser firmware */ +typedef struct cas_hp_inst { + const char *note; + + u16 mask, val; + + u8 op; + u8 soff, snext; /* if match succeeds, new offset and match */ + u8 foff, fnext; /* if match fails, new offset and match */ + /* output info */ + u8 outop; /* output opcode */ + + u16 outarg; /* output argument */ + u8 outenab; /* output enable: 0 = not, 1 = if match + 2 = if !match, 3 = always */ + u8 outshift; /* barrel shift right, 4 bits */ + u16 outmask; +} cas_hp_inst_t; + +/* comparison */ +#define OP_EQ 0 /* packet == value */ +#define OP_LT 1 /* packet < value */ +#define OP_GT 2 /* packet > value */ +#define OP_NP 3 /* new packet */ + +/* output opcodes */ +#define CL_REG 0 +#define LD_FID 1 +#define LD_SEQ 2 +#define LD_CTL 3 +#define LD_SAP 4 +#define LD_R1 5 +#define LD_L3 6 +#define LD_SUM 7 +#define LD_HDR 8 +#define IM_FID 9 +#define IM_SEQ 10 +#define IM_SAP 11 +#define IM_R1 12 +#define IM_CTL 13 +#define LD_LEN 14 +#define ST_FLG 15 + +/* match setp #s for IP4TCP4 */ +#define S1_PCKT 0 +#define S1_VLAN 1 +#define S1_CFI 2 +#define S1_8023 3 +#define S1_LLC 4 +#define S1_LLCc 5 +#define S1_IPV4 6 +#define S1_IPV4c 7 +#define S1_IPV4F 8 +#define S1_TCP44 9 +#define S1_IPV6 10 +#define S1_IPV6L 11 +#define S1_IPV6c 12 +#define S1_TCP64 13 +#define S1_TCPSQ 14 +#define S1_TCPFG 15 +#define S1_TCPHL 16 +#define S1_TCPHc 17 +#define S1_CLNP 18 +#define S1_CLNP2 19 +#define S1_DROP 20 +#define S2_HTTP 21 +#define S1_ESP4 22 +#define S1_AH4 23 +#define S1_ESP6 24 +#define S1_AH6 25 + +#define CAS_PROG_IP46TCP4_PREAMBLE \ +{ "packet arrival?", 0xffff, 0x0000, OP_NP, 6, S1_VLAN, 0, S1_PCKT, \ + CL_REG, 0x3ff, 1, 0x0, 0x0000}, \ +{ "VLAN?", 0xffff, 0x8100, OP_EQ, 1, S1_CFI, 0, S1_8023, \ + IM_CTL, 0x00a, 3, 0x0, 0xffff}, \ +{ "CFI?", 0x1000, 0x1000, OP_EQ, 0, S1_DROP, 1, S1_8023, \ + CL_REG, 0x000, 0, 0x0, 0x0000}, \ +{ "8023?", 0xffff, 0x0600, OP_LT, 1, S1_LLC, 0, S1_IPV4, \ + CL_REG, 0x000, 0, 0x0, 0x0000}, \ +{ "LLC?", 0xffff, 0xaaaa, OP_EQ, 1, S1_LLCc, 0, S1_CLNP, \ + CL_REG, 0x000, 0, 0x0, 0x0000}, \ +{ "LLCc?", 0xff00, 0x0300, OP_EQ, 2, S1_IPV4, 0, S1_CLNP, \ + CL_REG, 0x000, 0, 0x0, 0x0000}, \ +{ "IPV4?", 0xffff, 0x0800, OP_EQ, 1, S1_IPV4c, 0, S1_IPV6, \ + LD_SAP, 0x100, 3, 0x0, 0xffff}, \ +{ "IPV4 cont?", 0xff00, 0x4500, OP_EQ, 3, S1_IPV4F, 0, S1_CLNP, \ + LD_SUM, 0x00a, 1, 0x0, 0x0000}, \ +{ "IPV4 frag?", 0x3fff, 0x0000, OP_EQ, 1, S1_TCP44, 0, S1_CLNP, \ + LD_LEN, 0x03e, 1, 0x0, 0xffff}, \ +{ "TCP44?", 0x00ff, 0x0006, OP_EQ, 7, S1_TCPSQ, 0, S1_CLNP, \ + LD_FID, 0x182, 1, 0x0, 0xffff}, /* FID IP4&TCP src+dst */ \ +{ "IPV6?", 0xffff, 0x86dd, OP_EQ, 1, S1_IPV6L, 0, S1_CLNP, \ + LD_SUM, 0x015, 1, 0x0, 0x0000}, \ +{ "IPV6 len", 0xf000, 0x6000, OP_EQ, 0, S1_IPV6c, 0, S1_CLNP, \ + IM_R1, 0x128, 1, 0x0, 0xffff}, \ +{ "IPV6 cont?", 0x0000, 0x0000, OP_EQ, 3, S1_TCP64, 0, S1_CLNP, \ + LD_FID, 0x484, 1, 0x0, 0xffff}, /* FID IP6&TCP src+dst */ \ +{ "TCP64?", 0xff00, 0x0600, OP_EQ, 18, S1_TCPSQ, 0, S1_CLNP, \ + LD_LEN, 0x03f, 1, 0x0, 0xffff} + +#ifdef USE_HP_IP46TCP4 +static cas_hp_inst_t cas_prog_ip46tcp4tab[] = { + CAS_PROG_IP46TCP4_PREAMBLE, + { "TCP seq", /* DADDR should point to dest port */ + 0x0000, 0x0000, OP_EQ, 0, S1_TCPFG, 4, S1_TCPFG, LD_SEQ, + 0x081, 3, 0x0, 0xffff}, /* Load TCP seq # */ + { "TCP control flags", 0x0000, 0x0000, OP_EQ, 0, S1_TCPHL, 0, + S1_TCPHL, ST_FLG, 0x045, 3, 0x0, 0x002f}, /* Load TCP flags */ + { "TCP length", 0x0000, 0x0000, OP_EQ, 0, S1_TCPHc, 0, + S1_TCPHc, LD_R1, 0x205, 3, 0xB, 0xf000}, + { "TCP length cont", 0x0000, 0x0000, OP_EQ, 0, S1_PCKT, 0, + S1_PCKT, LD_HDR, 0x0ff, 3, 0x0, 0xffff}, + { "Cleanup", 0x0000, 0x0000, OP_EQ, 0, S1_CLNP2, 0, S1_CLNP2, + IM_CTL, 0x001, 3, 0x0, 0x0001}, + { "Cleanup 2", 0x0000, 0x0000, OP_EQ, 0, S1_PCKT, 0, S1_PCKT, + IM_CTL, 0x000, 0, 0x0, 0x0000}, + { "Drop packet", 0x0000, 0x0000, OP_EQ, 0, S1_PCKT, 0, S1_PCKT, + IM_CTL, 0x080, 3, 0x0, 0xffff}, + { NULL }, +}; +#ifdef HP_IP46TCP4_DEFAULT +#define CAS_HP_FIRMWARE cas_prog_ip46tcp4tab +#endif +#endif + +/* + * Alternate table load which excludes HTTP server traffic from reassembly. + * It is substantially similar to the basic table, with one extra state + * and a few extra compares. */ +#ifdef USE_HP_IP46TCP4NOHTTP +static cas_hp_inst_t cas_prog_ip46tcp4nohttptab[] = { + CAS_PROG_IP46TCP4_PREAMBLE, + { "TCP seq", /* DADDR should point to dest port */ + 0xFFFF, 0x0080, OP_EQ, 0, S2_HTTP, 0, S1_TCPFG, LD_SEQ, + 0x081, 3, 0x0, 0xffff} , /* Load TCP seq # */ + { "TCP control flags", 0xFFFF, 0x8080, OP_EQ, 0, S2_HTTP, 0, + S1_TCPHL, ST_FLG, 0x145, 2, 0x0, 0x002f, }, /* Load TCP flags */ + { "TCP length", 0x0000, 0x0000, OP_EQ, 0, S1_TCPHc, 0, S1_TCPHc, + LD_R1, 0x205, 3, 0xB, 0xf000}, + { "TCP length cont", 0x0000, 0x0000, OP_EQ, 0, S1_PCKT, 0, S1_PCKT, + LD_HDR, 0x0ff, 3, 0x0, 0xffff}, + { "Cleanup", 0x0000, 0x0000, OP_EQ, 0, S1_CLNP2, 0, S1_CLNP2, + IM_CTL, 0x001, 3, 0x0, 0x0001}, + { "Cleanup 2", 0x0000, 0x0000, OP_EQ, 0, S1_PCKT, 0, S1_PCKT, + CL_REG, 0x002, 3, 0x0, 0x0000}, + { "Drop packet", 0x0000, 0x0000, OP_EQ, 0, S1_PCKT, 0, S1_PCKT, + IM_CTL, 0x080, 3, 0x0, 0xffff}, + { "No HTTP", 0x0000, 0x0000, OP_EQ, 0, S1_PCKT, 0, S1_PCKT, + IM_CTL, 0x044, 3, 0x0, 0xffff}, + { NULL }, +}; +#ifdef HP_IP46TCP4NOHTTP_DEFAULT +#define CAS_HP_FIRMWARE cas_prog_ip46tcp4nohttptab +#endif +#endif + +/* match step #s for IP4FRAG */ +#define S3_IPV6c 11 +#define S3_TCP64 12 +#define S3_TCPSQ 13 +#define S3_TCPFG 14 +#define S3_TCPHL 15 +#define S3_TCPHc 16 +#define S3_FRAG 17 +#define S3_FOFF 18 +#define S3_CLNP 19 + +#ifdef USE_HP_IP4FRAG +static cas_hp_inst_t cas_prog_ip4fragtab[] = { + { "packet arrival?", 0xffff, 0x0000, OP_NP, 6, S1_VLAN, 0, S1_PCKT, + CL_REG, 0x3ff, 1, 0x0, 0x0000}, + { "VLAN?", 0xffff, 0x8100, OP_EQ, 1, S1_CFI, 0, S1_8023, + IM_CTL, 0x00a, 3, 0x0, 0xffff}, + { "CFI?", 0x1000, 0x1000, OP_EQ, 0, S3_CLNP, 1, S1_8023, + CL_REG, 0x000, 0, 0x0, 0x0000}, + { "8023?", 0xffff, 0x0600, OP_LT, 1, S1_LLC, 0, S1_IPV4, + CL_REG, 0x000, 0, 0x0, 0x0000}, + { "LLC?", 0xffff, 0xaaaa, OP_EQ, 1, S1_LLCc, 0, S3_CLNP, + CL_REG, 0x000, 0, 0x0, 0x0000}, + { "LLCc?",0xff00, 0x0300, OP_EQ, 2, S1_IPV4, 0, S3_CLNP, + CL_REG, 0x000, 0, 0x0, 0x0000}, + { "IPV4?", 0xffff, 0x0800, OP_EQ, 1, S1_IPV4c, 0, S1_IPV6, + LD_SAP, 0x100, 3, 0x0, 0xffff}, + { "IPV4 cont?", 0xff00, 0x4500, OP_EQ, 3, S1_IPV4F, 0, S3_CLNP, + LD_SUM, 0x00a, 1, 0x0, 0x0000}, + { "IPV4 frag?", 0x3fff, 0x0000, OP_EQ, 1, S1_TCP44, 0, S3_FRAG, + LD_LEN, 0x03e, 3, 0x0, 0xffff}, + { "TCP44?", 0x00ff, 0x0006, OP_EQ, 7, S3_TCPSQ, 0, S3_CLNP, + LD_FID, 0x182, 3, 0x0, 0xffff}, /* FID IP4&TCP src+dst */ + { "IPV6?", 0xffff, 0x86dd, OP_EQ, 1, S3_IPV6c, 0, S3_CLNP, + LD_SUM, 0x015, 1, 0x0, 0x0000}, + { "IPV6 cont?", 0xf000, 0x6000, OP_EQ, 3, S3_TCP64, 0, S3_CLNP, + LD_FID, 0x484, 1, 0x0, 0xffff}, /* FID IP6&TCP src+dst */ + { "TCP64?", 0xff00, 0x0600, OP_EQ, 18, S3_TCPSQ, 0, S3_CLNP, + LD_LEN, 0x03f, 1, 0x0, 0xffff}, + { "TCP seq", /* DADDR should point to dest port */ + 0x0000, 0x0000, OP_EQ, 0, S3_TCPFG, 4, S3_TCPFG, LD_SEQ, + 0x081, 3, 0x0, 0xffff}, /* Load TCP seq # */ + { "TCP control flags", 0x0000, 0x0000, OP_EQ, 0, S3_TCPHL, 0, + S3_TCPHL, ST_FLG, 0x045, 3, 0x0, 0x002f}, /* Load TCP flags */ + { "TCP length", 0x0000, 0x0000, OP_EQ, 0, S3_TCPHc, 0, S3_TCPHc, + LD_R1, 0x205, 3, 0xB, 0xf000}, + { "TCP length cont", 0x0000, 0x0000, OP_EQ, 0, S1_PCKT, 0, S1_PCKT, + LD_HDR, 0x0ff, 3, 0x0, 0xffff}, + { "IP4 Fragment", 0x0000, 0x0000, OP_EQ, 0, S3_FOFF, 0, S3_FOFF, + LD_FID, 0x103, 3, 0x0, 0xffff}, /* FID IP4 src+dst */ + { "IP4 frag offset", 0x0000, 0x0000, OP_EQ, 0, S3_FOFF, 0, S3_FOFF, + LD_SEQ, 0x040, 1, 0xD, 0xfff8}, + { "Cleanup", 0x0000, 0x0000, OP_EQ, 0, S1_PCKT, 0, S1_PCKT, + IM_CTL, 0x001, 3, 0x0, 0x0001}, + { NULL }, +}; +#ifdef HP_IP4FRAG_DEFAULT +#define CAS_HP_FIRMWARE cas_prog_ip4fragtab +#endif +#endif + +/* + * Alternate table which does batching without reassembly + */ +#ifdef USE_HP_IP46TCP4BATCH +static cas_hp_inst_t cas_prog_ip46tcp4batchtab[] = { + CAS_PROG_IP46TCP4_PREAMBLE, + { "TCP seq", /* DADDR should point to dest port */ + 0x0000, 0x0000, OP_EQ, 0, S1_TCPFG, 0, S1_TCPFG, LD_SEQ, + 0x081, 3, 0x0, 0xffff}, /* Load TCP seq # */ + { "TCP control flags", 0x0000, 0x0000, OP_EQ, 0, S1_TCPHL, 0, + S1_TCPHL, ST_FLG, 0x000, 3, 0x0, 0x0000}, /* Load TCP flags */ + { "TCP length", 0x0000, 0x0000, OP_EQ, 0, S1_TCPHc, 0, + S1_TCPHc, LD_R1, 0x205, 3, 0xB, 0xf000}, + { "TCP length cont", 0x0000, 0x0000, OP_EQ, 0, S1_PCKT, 0, + S1_PCKT, IM_CTL, 0x040, 3, 0x0, 0xffff}, /* set batch bit */ + { "Cleanup", 0x0000, 0x0000, OP_EQ, 0, S1_PCKT, 0, S1_PCKT, + IM_CTL, 0x001, 3, 0x0, 0x0001}, + { "Drop packet", 0x0000, 0x0000, OP_EQ, 0, S1_PCKT, 0, + S1_PCKT, IM_CTL, 0x080, 3, 0x0, 0xffff}, + { NULL }, +}; +#ifdef HP_IP46TCP4BATCH_DEFAULT +#define CAS_HP_FIRMWARE cas_prog_ip46tcp4batchtab +#endif +#endif + +/* Workaround for Cassini rev2 descriptor corruption problem. + * Does batching without reassembly, and sets the SAP to a known + * data pattern for all packets. + */ +#ifdef USE_HP_WORKAROUND +static cas_hp_inst_t cas_prog_workaroundtab[] = { + { "packet arrival?", 0xffff, 0x0000, OP_NP, 6, S1_VLAN, 0, + S1_PCKT, CL_REG, 0x3ff, 1, 0x0, 0x0000} , + { "VLAN?", 0xffff, 0x8100, OP_EQ, 1, S1_CFI, 0, S1_8023, + IM_CTL, 0x04a, 3, 0x0, 0xffff}, + { "CFI?", 0x1000, 0x1000, OP_EQ, 0, S1_CLNP, 1, S1_8023, + CL_REG, 0x000, 0, 0x0, 0x0000}, + { "8023?", 0xffff, 0x0600, OP_LT, 1, S1_LLC, 0, S1_IPV4, + CL_REG, 0x000, 0, 0x0, 0x0000}, + { "LLC?", 0xffff, 0xaaaa, OP_EQ, 1, S1_LLCc, 0, S1_CLNP, + CL_REG, 0x000, 0, 0x0, 0x0000}, + { "LLCc?", 0xff00, 0x0300, OP_EQ, 2, S1_IPV4, 0, S1_CLNP, + CL_REG, 0x000, 0, 0x0, 0x0000}, + { "IPV4?", 0xffff, 0x0800, OP_EQ, 1, S1_IPV4c, 0, S1_IPV6, + IM_SAP, 0x6AE, 3, 0x0, 0xffff}, + { "IPV4 cont?", 0xff00, 0x4500, OP_EQ, 3, S1_IPV4F, 0, S1_CLNP, + LD_SUM, 0x00a, 1, 0x0, 0x0000}, + { "IPV4 frag?", 0x3fff, 0x0000, OP_EQ, 1, S1_TCP44, 0, S1_CLNP, + LD_LEN, 0x03e, 1, 0x0, 0xffff}, + { "TCP44?", 0x00ff, 0x0006, OP_EQ, 7, S1_TCPSQ, 0, S1_CLNP, + LD_FID, 0x182, 3, 0x0, 0xffff}, /* FID IP4&TCP src+dst */ + { "IPV6?", 0xffff, 0x86dd, OP_EQ, 1, S1_IPV6L, 0, S1_CLNP, + LD_SUM, 0x015, 1, 0x0, 0x0000}, + { "IPV6 len", 0xf000, 0x6000, OP_EQ, 0, S1_IPV6c, 0, S1_CLNP, + IM_R1, 0x128, 1, 0x0, 0xffff}, + { "IPV6 cont?", 0x0000, 0x0000, OP_EQ, 3, S1_TCP64, 0, S1_CLNP, + LD_FID, 0x484, 1, 0x0, 0xffff}, /* FID IP6&TCP src+dst */ + { "TCP64?", 0xff00, 0x0600, OP_EQ, 18, S1_TCPSQ, 0, S1_CLNP, + LD_LEN, 0x03f, 1, 0x0, 0xffff}, + { "TCP seq", /* DADDR should point to dest port */ + 0x0000, 0x0000, OP_EQ, 0, S1_TCPFG, 4, S1_TCPFG, LD_SEQ, + 0x081, 3, 0x0, 0xffff}, /* Load TCP seq # */ + { "TCP control flags", 0x0000, 0x0000, OP_EQ, 0, S1_TCPHL, 0, + S1_TCPHL, ST_FLG, 0x045, 3, 0x0, 0x002f}, /* Load TCP flags */ + { "TCP length", 0x0000, 0x0000, OP_EQ, 0, S1_TCPHc, 0, S1_TCPHc, + LD_R1, 0x205, 3, 0xB, 0xf000}, + { "TCP length cont", 0x0000, 0x0000, OP_EQ, 0, S1_PCKT, 0, + S1_PCKT, LD_HDR, 0x0ff, 3, 0x0, 0xffff}, + { "Cleanup", 0x0000, 0x0000, OP_EQ, 0, S1_CLNP2, 0, S1_CLNP2, + IM_SAP, 0x6AE, 3, 0x0, 0xffff} , + { "Cleanup 2", 0x0000, 0x0000, OP_EQ, 0, S1_PCKT, 0, S1_PCKT, + IM_CTL, 0x001, 3, 0x0, 0x0001}, + { NULL }, +}; +#ifdef HP_WORKAROUND_DEFAULT +#define CAS_HP_FIRMWARE cas_prog_workaroundtab +#endif +#endif + +#ifdef USE_HP_ENCRYPT +static cas_hp_inst_t cas_prog_encryptiontab[] = { + { "packet arrival?", 0xffff, 0x0000, OP_NP, 6, S1_VLAN, 0, + S1_PCKT, CL_REG, 0x3ff, 1, 0x0, 0x0000}, + { "VLAN?", 0xffff, 0x8100, OP_EQ, 1, S1_CFI, 0, S1_8023, + IM_CTL, 0x00a, 3, 0x0, 0xffff}, +#if 0 +//"CFI?", /* 02 FIND CFI and If FIND go to S1_DROP */ +//0x1000, 0x1000, OP_EQ, 0, S1_DROP, 1, S1_8023, CL_REG, 0x000, 0, 0x0, 0x00 + 00, +#endif + { "CFI?", /* FIND CFI and If FIND go to CleanUP1 (ignore and send to host) */ + 0x1000, 0x1000, OP_EQ, 0, S1_CLNP, 1, S1_8023, + CL_REG, 0x000, 0, 0x0, 0x0000}, + { "8023?", 0xffff, 0x0600, OP_LT, 1, S1_LLC, 0, S1_IPV4, + CL_REG, 0x000, 0, 0x0, 0x0000}, + { "LLC?", 0xffff, 0xaaaa, OP_EQ, 1, S1_LLCc, 0, S1_CLNP, + CL_REG, 0x000, 0, 0x0, 0x0000}, + { "LLCc?", 0xff00, 0x0300, OP_EQ, 2, S1_IPV4, 0, S1_CLNP, + CL_REG, 0x000, 0, 0x0, 0x0000}, + { "IPV4?", 0xffff, 0x0800, OP_EQ, 1, S1_IPV4c, 0, S1_IPV6, + LD_SAP, 0x100, 3, 0x0, 0xffff}, + { "IPV4 cont?", 0xff00, 0x4500, OP_EQ, 3, S1_IPV4F, 0, S1_CLNP, + LD_SUM, 0x00a, 1, 0x0, 0x0000}, + { "IPV4 frag?", 0x3fff, 0x0000, OP_EQ, 1, S1_TCP44, 0, S1_CLNP, + LD_LEN, 0x03e, 1, 0x0, 0xffff}, + { "TCP44?", 0x00ff, 0x0006, OP_EQ, 7, S1_TCPSQ, 0, S1_ESP4, + LD_FID, 0x182, 1, 0x0, 0xffff}, /* FID IP4&TCP src+dst */ + { "IPV6?", 0xffff, 0x86dd, OP_EQ, 1, S1_IPV6L, 0, S1_CLNP, + LD_SUM, 0x015, 1, 0x0, 0x0000}, + { "IPV6 len", 0xf000, 0x6000, OP_EQ, 0, S1_IPV6c, 0, S1_CLNP, + IM_R1, 0x128, 1, 0x0, 0xffff}, + { "IPV6 cont?", 0x0000, 0x0000, OP_EQ, 3, S1_TCP64, 0, S1_CLNP, + LD_FID, 0x484, 1, 0x0, 0xffff}, /* FID IP6&TCP src+dst */ + { "TCP64?", +#if 0 +//@@@0xff00, 0x0600, OP_EQ, 18, S1_TCPSQ, 0, S1_ESP6, LD_LEN, 0x03f, 1, 0x0, 0xffff, +#endif + 0xff00, 0x0600, OP_EQ, 12, S1_TCPSQ, 0, S1_ESP6, LD_LEN, + 0x03f, 1, 0x0, 0xffff}, + { "TCP seq", /* 14:DADDR should point to dest port */ + 0xFFFF, 0x0080, OP_EQ, 0, S2_HTTP, 0, S1_TCPFG, LD_SEQ, + 0x081, 3, 0x0, 0xffff}, /* Load TCP seq # */ + { "TCP control flags", 0xFFFF, 0x8080, OP_EQ, 0, S2_HTTP, 0, + S1_TCPHL, ST_FLG, 0x145, 2, 0x0, 0x002f}, /* Load TCP flags */ + { "TCP length", 0x0000, 0x0000, OP_EQ, 0, S1_TCPHc, 0, S1_TCPHc, + LD_R1, 0x205, 3, 0xB, 0xf000} , + { "TCP length cont", 0x0000, 0x0000, OP_EQ, 0, S1_PCKT, 0, + S1_PCKT, LD_HDR, 0x0ff, 3, 0x0, 0xffff}, + { "Cleanup", 0x0000, 0x0000, OP_EQ, 0, S1_CLNP2, 0, S1_CLNP2, + IM_CTL, 0x001, 3, 0x0, 0x0001}, + { "Cleanup 2", 0x0000, 0x0000, OP_EQ, 0, S1_PCKT, 0, S1_PCKT, + CL_REG, 0x002, 3, 0x0, 0x0000}, + { "Drop packet", 0x0000, 0x0000, OP_EQ, 0, S1_PCKT, 0, S1_PCKT, + IM_CTL, 0x080, 3, 0x0, 0xffff}, + { "No HTTP", 0x0000, 0x0000, OP_EQ, 0, S1_PCKT, 0, S1_PCKT, + IM_CTL, 0x044, 3, 0x0, 0xffff}, + { "IPV4 ESP encrypted?", /* S1_ESP4 */ + 0x00ff, 0x0032, OP_EQ, 0, S1_CLNP2, 0, S1_AH4, IM_CTL, + 0x021, 1, 0x0, 0xffff}, + { "IPV4 AH encrypted?", /* S1_AH4 */ + 0x00ff, 0x0033, OP_EQ, 0, S1_CLNP2, 0, S1_CLNP, IM_CTL, + 0x021, 1, 0x0, 0xffff}, + { "IPV6 ESP encrypted?", /* S1_ESP6 */ +#if 0 +//@@@0x00ff, 0x0032, OP_EQ, 0, S1_CLNP2, 0, S1_AH6, IM_CTL, 0x021, 1, 0x0, 0xffff, +#endif + 0xff00, 0x3200, OP_EQ, 0, S1_CLNP2, 0, S1_AH6, IM_CTL, + 0x021, 1, 0x0, 0xffff}, + { "IPV6 AH encrypted?", /* S1_AH6 */ +#if 0 +//@@@0x00ff, 0x0033, OP_EQ, 0, S1_CLNP2, 0, S1_CLNP, IM_CTL, 0x021, 1, 0x0, 0xffff, +#endif + 0xff00, 0x3300, OP_EQ, 0, S1_CLNP2, 0, S1_CLNP, IM_CTL, + 0x021, 1, 0x0, 0xffff}, + { NULL }, +}; +#ifdef HP_ENCRYPT_DEFAULT +#define CAS_HP_FIRMWARE cas_prog_encryptiontab +#endif +#endif + +static cas_hp_inst_t cas_prog_null[] = { {NULL} }; +#ifdef HP_NULL_DEFAULT +#define CAS_HP_FIRMWARE cas_prog_null +#endif + +/* firmware patch for NS_DP83065 */ +typedef struct cas_saturn_patch { + u16 addr; + u16 val; +} cas_saturn_patch_t; + +#if 1 +cas_saturn_patch_t cas_saturn_patch[] = { +{0x8200, 0x007e}, {0x8201, 0x0082}, {0x8202, 0x0009}, +{0x8203, 0x0000}, {0x8204, 0x0000}, {0x8205, 0x0000}, +{0x8206, 0x0000}, {0x8207, 0x0000}, {0x8208, 0x0000}, +{0x8209, 0x008e}, {0x820a, 0x008e}, {0x820b, 0x00ff}, +{0x820c, 0x00ce}, {0x820d, 0x0082}, {0x820e, 0x0025}, +{0x820f, 0x00ff}, {0x8210, 0x0001}, {0x8211, 0x000f}, +{0x8212, 0x00ce}, {0x8213, 0x0084}, {0x8214, 0x0026}, +{0x8215, 0x00ff}, {0x8216, 0x0001}, {0x8217, 0x0011}, +{0x8218, 0x00ce}, {0x8219, 0x0085}, {0x821a, 0x003d}, +{0x821b, 0x00df}, {0x821c, 0x00e5}, {0x821d, 0x0086}, +{0x821e, 0x0039}, {0x821f, 0x00b7}, {0x8220, 0x008f}, +{0x8221, 0x00f8}, {0x8222, 0x007e}, {0x8223, 0x00c3}, +{0x8224, 0x00c2}, {0x8225, 0x0096}, {0x8226, 0x0047}, +{0x8227, 0x0084}, {0x8228, 0x00f3}, {0x8229, 0x008a}, +{0x822a, 0x0000}, {0x822b, 0x0097}, {0x822c, 0x0047}, +{0x822d, 0x00ce}, {0x822e, 0x0082}, {0x822f, 0x0033}, +{0x8230, 0x00ff}, {0x8231, 0x0001}, {0x8232, 0x000f}, +{0x8233, 0x0096}, {0x8234, 0x0046}, {0x8235, 0x0084}, +{0x8236, 0x000c}, {0x8237, 0x0081}, {0x8238, 0x0004}, +{0x8239, 0x0027}, {0x823a, 0x000b}, {0x823b, 0x0096}, +{0x823c, 0x0046}, {0x823d, 0x0084}, {0x823e, 0x000c}, +{0x823f, 0x0081}, {0x8240, 0x0008}, {0x8241, 0x0027}, +{0x8242, 0x0057}, {0x8243, 0x007e}, {0x8244, 0x0084}, +{0x8245, 0x0025}, {0x8246, 0x0096}, {0x8247, 0x0047}, +{0x8248, 0x0084}, {0x8249, 0x00f3}, {0x824a, 0x008a}, +{0x824b, 0x0004}, {0x824c, 0x0097}, {0x824d, 0x0047}, +{0x824e, 0x00ce}, {0x824f, 0x0082}, {0x8250, 0x0054}, +{0x8251, 0x00ff}, {0x8252, 0x0001}, {0x8253, 0x000f}, +{0x8254, 0x0096}, {0x8255, 0x0046}, {0x8256, 0x0084}, +{0x8257, 0x000c}, {0x8258, 0x0081}, {0x8259, 0x0004}, +{0x825a, 0x0026}, {0x825b, 0x0038}, {0x825c, 0x00b6}, +{0x825d, 0x0012}, {0x825e, 0x0020}, {0x825f, 0x0084}, +{0x8260, 0x0020}, {0x8261, 0x0026}, {0x8262, 0x0003}, +{0x8263, 0x007e}, {0x8264, 0x0084}, {0x8265, 0x0025}, +{0x8266, 0x0096}, {0x8267, 0x007b}, {0x8268, 0x00d6}, +{0x8269, 0x007c}, {0x826a, 0x00fe}, {0x826b, 0x008f}, +{0x826c, 0x0056}, {0x826d, 0x00bd}, {0x826e, 0x00f7}, +{0x826f, 0x00b6}, {0x8270, 0x00fe}, {0x8271, 0x008f}, +{0x8272, 0x004e}, {0x8273, 0x00bd}, {0x8274, 0x00ec}, +{0x8275, 0x008e}, {0x8276, 0x00bd}, {0x8277, 0x00fa}, +{0x8278, 0x00f7}, {0x8279, 0x00bd}, {0x827a, 0x00f7}, +{0x827b, 0x0028}, {0x827c, 0x00ce}, {0x827d, 0x0082}, +{0x827e, 0x0082}, {0x827f, 0x00ff}, {0x8280, 0x0001}, +{0x8281, 0x000f}, {0x8282, 0x0096}, {0x8283, 0x0046}, +{0x8284, 0x0084}, {0x8285, 0x000c}, {0x8286, 0x0081}, +{0x8287, 0x0004}, {0x8288, 0x0026}, {0x8289, 0x000a}, +{0x828a, 0x00b6}, {0x828b, 0x0012}, {0x828c, 0x0020}, +{0x828d, 0x0084}, {0x828e, 0x0020}, {0x828f, 0x0027}, +{0x8290, 0x00b5}, {0x8291, 0x007e}, {0x8292, 0x0084}, +{0x8293, 0x0025}, {0x8294, 0x00bd}, {0x8295, 0x00f7}, +{0x8296, 0x001f}, {0x8297, 0x007e}, {0x8298, 0x0084}, +{0x8299, 0x001f}, {0x829a, 0x0096}, {0x829b, 0x0047}, +{0x829c, 0x0084}, {0x829d, 0x00f3}, {0x829e, 0x008a}, +{0x829f, 0x0008}, {0x82a0, 0x0097}, {0x82a1, 0x0047}, +{0x82a2, 0x00de}, {0x82a3, 0x00e1}, {0x82a4, 0x00ad}, +{0x82a5, 0x0000}, {0x82a6, 0x00ce}, {0x82a7, 0x0082}, +{0x82a8, 0x00af}, {0x82a9, 0x00ff}, {0x82aa, 0x0001}, +{0x82ab, 0x000f}, {0x82ac, 0x007e}, {0x82ad, 0x0084}, +{0x82ae, 0x0025}, {0x82af, 0x0096}, {0x82b0, 0x0041}, +{0x82b1, 0x0085}, {0x82b2, 0x0010}, {0x82b3, 0x0026}, +{0x82b4, 0x0006}, {0x82b5, 0x0096}, {0x82b6, 0x0023}, +{0x82b7, 0x0085}, {0x82b8, 0x0040}, {0x82b9, 0x0027}, +{0x82ba, 0x0006}, {0x82bb, 0x00bd}, {0x82bc, 0x00ed}, +{0x82bd, 0x0000}, {0x82be, 0x007e}, {0x82bf, 0x0083}, +{0x82c0, 0x00a2}, {0x82c1, 0x00de}, {0x82c2, 0x0042}, +{0x82c3, 0x00bd}, {0x82c4, 0x00eb}, {0x82c5, 0x008e}, +{0x82c6, 0x0096}, {0x82c7, 0x0024}, {0x82c8, 0x0084}, +{0x82c9, 0x0008}, {0x82ca, 0x0027}, {0x82cb, 0x0003}, +{0x82cc, 0x007e}, {0x82cd, 0x0083}, {0x82ce, 0x00df}, +{0x82cf, 0x0096}, {0x82d0, 0x007b}, {0x82d1, 0x00d6}, +{0x82d2, 0x007c}, {0x82d3, 0x00fe}, {0x82d4, 0x008f}, +{0x82d5, 0x0056}, {0x82d6, 0x00bd}, {0x82d7, 0x00f7}, +{0x82d8, 0x00b6}, {0x82d9, 0x00fe}, {0x82da, 0x008f}, +{0x82db, 0x0050}, {0x82dc, 0x00bd}, {0x82dd, 0x00ec}, +{0x82de, 0x008e}, {0x82df, 0x00bd}, {0x82e0, 0x00fa}, +{0x82e1, 0x00f7}, {0x82e2, 0x0086}, {0x82e3, 0x0011}, +{0x82e4, 0x00c6}, {0x82e5, 0x0049}, {0x82e6, 0x00bd}, +{0x82e7, 0x00e4}, {0x82e8, 0x0012}, {0x82e9, 0x00ce}, +{0x82ea, 0x0082}, {0x82eb, 0x00ef}, {0x82ec, 0x00ff}, +{0x82ed, 0x0001}, {0x82ee, 0x000f}, {0x82ef, 0x0096}, +{0x82f0, 0x0046}, {0x82f1, 0x0084}, {0x82f2, 0x000c}, +{0x82f3, 0x0081}, {0x82f4, 0x0000}, {0x82f5, 0x0027}, +{0x82f6, 0x0017}, {0x82f7, 0x00c6}, {0x82f8, 0x0049}, +{0x82f9, 0x00bd}, {0x82fa, 0x00e4}, {0x82fb, 0x0091}, +{0x82fc, 0x0024}, {0x82fd, 0x000d}, {0x82fe, 0x00b6}, +{0x82ff, 0x0012}, {0x8300, 0x0020}, {0x8301, 0x0085}, +{0x8302, 0x0020}, {0x8303, 0x0026}, {0x8304, 0x000c}, +{0x8305, 0x00ce}, {0x8306, 0x0082}, {0x8307, 0x00c1}, +{0x8308, 0x00ff}, {0x8309, 0x0001}, {0x830a, 0x000f}, +{0x830b, 0x007e}, {0x830c, 0x0084}, {0x830d, 0x0025}, +{0x830e, 0x007e}, {0x830f, 0x0084}, {0x8310, 0x0016}, +{0x8311, 0x00fe}, {0x8312, 0x008f}, {0x8313, 0x0052}, +{0x8314, 0x00bd}, {0x8315, 0x00ec}, {0x8316, 0x008e}, +{0x8317, 0x00bd}, {0x8318, 0x00fa}, {0x8319, 0x00f7}, +{0x831a, 0x0086}, {0x831b, 0x006a}, {0x831c, 0x00c6}, +{0x831d, 0x0049}, {0x831e, 0x00bd}, {0x831f, 0x00e4}, +{0x8320, 0x0012}, {0x8321, 0x00ce}, {0x8322, 0x0083}, +{0x8323, 0x0027}, {0x8324, 0x00ff}, {0x8325, 0x0001}, +{0x8326, 0x000f}, {0x8327, 0x0096}, {0x8328, 0x0046}, +{0x8329, 0x0084}, {0x832a, 0x000c}, {0x832b, 0x0081}, +{0x832c, 0x0000}, {0x832d, 0x0027}, {0x832e, 0x000a}, +{0x832f, 0x00c6}, {0x8330, 0x0049}, {0x8331, 0x00bd}, 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{0x8a6f, 0x00b6}, +{0x8a70, 0x008f}, {0x8a71, 0x0070}, {0x8a72, 0x0085}, +{0x8a73, 0x0010}, {0x8a74, 0x0027}, {0x8a75, 0x00af}, +{0x8a76, 0x00d6}, {0x8a77, 0x0022}, {0x8a78, 0x00c4}, +{0x8a79, 0x0010}, {0x8a7a, 0x0058}, {0x8a7b, 0x00b6}, +{0x8a7c, 0x0012}, {0x8a7d, 0x0070}, {0x8a7e, 0x0081}, +{0x8a7f, 0x00e4}, {0x8a80, 0x0027}, {0x8a81, 0x0036}, +{0x8a82, 0x0081}, {0x8a83, 0x00e1}, {0x8a84, 0x0026}, +{0x8a85, 0x000c}, {0x8a86, 0x0096}, {0x8a87, 0x0022}, +{0x8a88, 0x0084}, {0x8a89, 0x0020}, {0x8a8a, 0x0044}, +{0x8a8b, 0x001b}, {0x8a8c, 0x00d6}, {0x8a8d, 0x0022}, +{0x8a8e, 0x00c4}, {0x8a8f, 0x00cf}, {0x8a90, 0x0020}, +{0x8a91, 0x0023}, {0x8a92, 0x0058}, {0x8a93, 0x0081}, +{0x8a94, 0x00c6}, {0x8a95, 0x0026}, {0x8a96, 0x000d}, +{0x8a97, 0x0096}, {0x8a98, 0x0022}, {0x8a99, 0x0084}, +{0x8a9a, 0x0040}, {0x8a9b, 0x0044}, {0x8a9c, 0x0044}, +{0x8a9d, 0x001b}, {0x8a9e, 0x00d6}, {0x8a9f, 0x0022}, +{0x8aa0, 0x00c4}, {0x8aa1, 0x00af}, {0x8aa2, 0x0020}, +{0x8aa3, 0x0011}, {0x8aa4, 0x0058}, {0x8aa5, 0x0081}, +{0x8aa6, 0x0027}, {0x8aa7, 0x0026}, {0x8aa8, 0x000f}, +{0x8aa9, 0x0096}, {0x8aaa, 0x0022}, {0x8aab, 0x0084}, +{0x8aac, 0x0080}, {0x8aad, 0x0044}, {0x8aae, 0x0044}, +{0x8aaf, 0x0044}, {0x8ab0, 0x001b}, {0x8ab1, 0x00d6}, +{0x8ab2, 0x0022}, {0x8ab3, 0x00c4}, {0x8ab4, 0x006f}, +{0x8ab5, 0x001b}, {0x8ab6, 0x0097}, {0x8ab7, 0x0022}, +{0x8ab8, 0x0039}, {0x8ab9, 0x0027}, {0x8aba, 0x000c}, +{0x8abb, 0x007c}, {0x8abc, 0x0082}, {0x8abd, 0x0006}, +{0x8abe, 0x00bd}, {0x8abf, 0x00d9}, {0x8ac0, 0x00ed}, +{0x8ac1, 0x00b6}, {0x8ac2, 0x0082}, {0x8ac3, 0x0007}, +{0x8ac4, 0x007e}, {0x8ac5, 0x008a}, {0x8ac6, 0x00b9}, +{0x8ac7, 0x007f}, {0x8ac8, 0x0082}, {0x8ac9, 0x0006}, +{0x8aca, 0x0039}, { 0x0, 0x0 } +}; +#else +cas_saturn_patch_t cas_saturn_patch[] = { +{0x8200, 0x007e}, {0x8201, 0x0082}, {0x8202, 0x0009}, +{0x8203, 0x0000}, {0x8204, 0x0000}, {0x8205, 0x0000}, +{0x8206, 0x0000}, {0x8207, 0x0000}, {0x8208, 0x0000}, +{0x8209, 0x008e}, {0x820a, 0x008e}, {0x820b, 0x00ff}, +{0x820c, 0x00ce}, 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0x007e}, {0x8244, 0x0084}, +{0x8245, 0x0025}, {0x8246, 0x0096}, {0x8247, 0x0047}, +{0x8248, 0x0084}, {0x8249, 0x00f3}, {0x824a, 0x008a}, +{0x824b, 0x0004}, {0x824c, 0x0097}, {0x824d, 0x0047}, +{0x824e, 0x00ce}, {0x824f, 0x0082}, {0x8250, 0x0054}, +{0x8251, 0x00ff}, {0x8252, 0x0001}, {0x8253, 0x000f}, +{0x8254, 0x0096}, {0x8255, 0x0046}, {0x8256, 0x0084}, +{0x8257, 0x000c}, {0x8258, 0x0081}, {0x8259, 0x0004}, +{0x825a, 0x0026}, {0x825b, 0x0038}, {0x825c, 0x00b6}, +{0x825d, 0x0012}, {0x825e, 0x0020}, {0x825f, 0x0084}, +{0x8260, 0x0020}, {0x8261, 0x0026}, {0x8262, 0x0003}, +{0x8263, 0x007e}, {0x8264, 0x0084}, {0x8265, 0x0025}, +{0x8266, 0x0096}, {0x8267, 0x007b}, {0x8268, 0x00d6}, +{0x8269, 0x007c}, {0x826a, 0x00fe}, {0x826b, 0x008f}, +{0x826c, 0x0056}, {0x826d, 0x00bd}, {0x826e, 0x00f7}, +{0x826f, 0x00b6}, {0x8270, 0x00fe}, {0x8271, 0x008f}, +{0x8272, 0x004e}, {0x8273, 0x00bd}, {0x8274, 0x00ec}, +{0x8275, 0x008e}, {0x8276, 0x00bd}, {0x8277, 0x00fa}, +{0x8278, 0x00f7}, {0x8279, 0x00bd}, {0x827a, 0x00f7}, +{0x827b, 0x0028}, {0x827c, 0x00ce}, {0x827d, 0x0082}, +{0x827e, 0x0082}, {0x827f, 0x00ff}, {0x8280, 0x0001}, +{0x8281, 0x000f}, {0x8282, 0x0096}, {0x8283, 0x0046}, +{0x8284, 0x0084}, {0x8285, 0x000c}, {0x8286, 0x0081}, +{0x8287, 0x0004}, {0x8288, 0x0026}, {0x8289, 0x000a}, +{0x828a, 0x00b6}, {0x828b, 0x0012}, {0x828c, 0x0020}, +{0x828d, 0x0084}, {0x828e, 0x0020}, {0x828f, 0x0027}, +{0x8290, 0x00b5}, {0x8291, 0x007e}, {0x8292, 0x0084}, +{0x8293, 0x0025}, {0x8294, 0x00bd}, {0x8295, 0x00f7}, +{0x8296, 0x001f}, {0x8297, 0x007e}, {0x8298, 0x0084}, +{0x8299, 0x001f}, {0x829a, 0x0096}, {0x829b, 0x0047}, +{0x829c, 0x0084}, {0x829d, 0x00f3}, {0x829e, 0x008a}, +{0x829f, 0x0008}, {0x82a0, 0x0097}, {0x82a1, 0x0047}, +{0x82a2, 0x00de}, {0x82a3, 0x00e1}, {0x82a4, 0x00ad}, +{0x82a5, 0x0000}, {0x82a6, 0x00ce}, {0x82a7, 0x0082}, +{0x82a8, 0x00af}, {0x82a9, 0x00ff}, {0x82aa, 0x0001}, +{0x82ab, 0x000f}, {0x82ac, 0x007e}, {0x82ad, 0x0084}, +{0x82ae, 0x0025}, {0x82af, 0x0096}, {0x82b0, 0x0041}, +{0x82b1, 0x0085}, {0x82b2, 0x0010}, {0x82b3, 0x0026}, +{0x82b4, 0x0006}, {0x82b5, 0x0096}, {0x82b6, 0x0023}, +{0x82b7, 0x0085}, {0x82b8, 0x0040}, {0x82b9, 0x0027}, +{0x82ba, 0x0006}, {0x82bb, 0x00bd}, {0x82bc, 0x00ed}, +{0x82bd, 0x0000}, {0x82be, 0x007e}, {0x82bf, 0x0083}, +{0x82c0, 0x00a2}, {0x82c1, 0x00de}, {0x82c2, 0x0042}, +{0x82c3, 0x00bd}, {0x82c4, 0x00eb}, {0x82c5, 0x008e}, +{0x82c6, 0x0096}, {0x82c7, 0x0024}, {0x82c8, 0x0084}, +{0x82c9, 0x0008}, {0x82ca, 0x0027}, {0x82cb, 0x0003}, +{0x82cc, 0x007e}, {0x82cd, 0x0083}, {0x82ce, 0x00df}, +{0x82cf, 0x0096}, {0x82d0, 0x007b}, {0x82d1, 0x00d6}, +{0x82d2, 0x007c}, {0x82d3, 0x00fe}, {0x82d4, 0x008f}, +{0x82d5, 0x0056}, {0x82d6, 0x00bd}, {0x82d7, 0x00f7}, +{0x82d8, 0x00b6}, {0x82d9, 0x00fe}, {0x82da, 0x008f}, +{0x82db, 0x0050}, {0x82dc, 0x00bd}, {0x82dd, 0x00ec}, +{0x82de, 0x008e}, {0x82df, 0x00bd}, {0x82e0, 0x00fa}, +{0x82e1, 0x00f7}, {0x82e2, 0x0086}, {0x82e3, 0x0011}, +{0x82e4, 0x00c6}, {0x82e5, 0x0049}, {0x82e6, 0x00bd}, +{0x82e7, 0x00e4}, {0x82e8, 0x0012}, {0x82e9, 0x00ce}, +{0x82ea, 0x0082}, {0x82eb, 0x00ef}, {0x82ec, 0x00ff}, +{0x82ed, 0x0001}, {0x82ee, 0x000f}, {0x82ef, 0x0096}, +{0x82f0, 0x0046}, {0x82f1, 0x0084}, {0x82f2, 0x000c}, +{0x82f3, 0x0081}, {0x82f4, 0x0000}, {0x82f5, 0x0027}, +{0x82f6, 0x0017}, {0x82f7, 0x00c6}, {0x82f8, 0x0049}, +{0x82f9, 0x00bd}, {0x82fa, 0x00e4}, {0x82fb, 0x0091}, +{0x82fc, 0x0024}, {0x82fd, 0x000d}, {0x82fe, 0x00b6}, +{0x82ff, 0x0012}, {0x8300, 0x0020}, {0x8301, 0x0085}, +{0x8302, 0x0020}, {0x8303, 0x0026}, {0x8304, 0x000c}, +{0x8305, 0x00ce}, {0x8306, 0x0082}, {0x8307, 0x00c1}, +{0x8308, 0x00ff}, {0x8309, 0x0001}, {0x830a, 0x000f}, +{0x830b, 0x007e}, {0x830c, 0x0084}, {0x830d, 0x0025}, +{0x830e, 0x007e}, {0x830f, 0x0084}, {0x8310, 0x0016}, +{0x8311, 0x00fe}, {0x8312, 0x008f}, {0x8313, 0x0052}, +{0x8314, 0x00bd}, {0x8315, 0x00ec}, {0x8316, 0x008e}, +{0x8317, 0x00bd}, {0x8318, 0x00fa}, {0x8319, 0x00f7}, +{0x831a, 0x0086}, {0x831b, 0x006a}, {0x831c, 0x00c6}, +{0x831d, 0x0049}, {0x831e, 0x00bd}, {0x831f, 0x00e4}, +{0x8320, 0x0012}, {0x8321, 0x00ce}, {0x8322, 0x0083}, +{0x8323, 0x0027}, {0x8324, 0x00ff}, {0x8325, 0x0001}, +{0x8326, 0x000f}, {0x8327, 0x0096}, {0x8328, 0x0046}, +{0x8329, 0x0084}, {0x832a, 0x000c}, {0x832b, 0x0081}, +{0x832c, 0x0000}, {0x832d, 0x0027}, {0x832e, 0x000a}, +{0x832f, 0x00c6}, {0x8330, 0x0049}, {0x8331, 0x00bd}, +{0x8332, 0x00e4}, {0x8333, 0x0091}, {0x8334, 0x0025}, +{0x8335, 0x0006}, {0x8336, 0x007e}, {0x8337, 0x0084}, +{0x8338, 0x0025}, {0x8339, 0x007e}, {0x833a, 0x0084}, +{0x833b, 0x0016}, {0x833c, 0x00b6}, {0x833d, 0x0018}, +{0x833e, 0x0070}, {0x833f, 0x00bb}, {0x8340, 0x0019}, +{0x8341, 0x0070}, {0x8342, 0x002a}, {0x8343, 0x0004}, +{0x8344, 0x0081}, {0x8345, 0x00af}, {0x8346, 0x002e}, +{0x8347, 0x0019}, {0x8348, 0x0096}, {0x8349, 0x007b}, +{0x834a, 0x00f6}, {0x834b, 0x0020}, {0x834c, 0x0007}, +{0x834d, 0x00fa}, {0x834e, 0x0020}, {0x834f, 0x0027}, +{0x8350, 0x00c4}, {0x8351, 0x0038}, {0x8352, 0x0081}, +{0x8353, 0x0038}, 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+{0x8a91, 0x0023}, {0x8a92, 0x0058}, {0x8a93, 0x0081}, +{0x8a94, 0x00c6}, {0x8a95, 0x0026}, {0x8a96, 0x000d}, +{0x8a97, 0x0096}, {0x8a98, 0x0022}, {0x8a99, 0x0084}, +{0x8a9a, 0x0040}, {0x8a9b, 0x0044}, {0x8a9c, 0x0044}, +{0x8a9d, 0x001b}, {0x8a9e, 0x00d6}, {0x8a9f, 0x0022}, +{0x8aa0, 0x00c4}, {0x8aa1, 0x00af}, {0x8aa2, 0x0020}, +{0x8aa3, 0x0011}, {0x8aa4, 0x0058}, {0x8aa5, 0x0081}, +{0x8aa6, 0x0027}, {0x8aa7, 0x0026}, {0x8aa8, 0x000f}, +{0x8aa9, 0x0096}, {0x8aaa, 0x0022}, {0x8aab, 0x0084}, +{0x8aac, 0x0080}, {0x8aad, 0x0044}, {0x8aae, 0x0044}, +{0x8aaf, 0x0044}, {0x8ab0, 0x001b}, {0x8ab1, 0x00d6}, +{0x8ab2, 0x0022}, {0x8ab3, 0x00c4}, {0x8ab4, 0x006f}, +{0x8ab5, 0x001b}, {0x8ab6, 0x0097}, {0x8ab7, 0x0022}, +{0x8ab8, 0x0039}, {0x8ab9, 0x0027}, {0x8aba, 0x000c}, +{0x8abb, 0x007c}, {0x8abc, 0x0082}, {0x8abd, 0x0006}, +{0x8abe, 0x00bd}, {0x8abf, 0x00d9}, {0x8ac0, 0x00ed}, +{0x8ac1, 0x00b6}, {0x8ac2, 0x0082}, {0x8ac3, 0x0007}, +{0x8ac4, 0x007e}, {0x8ac5, 0x008a}, {0x8ac6, 0x00b9}, +{0x8ac7, 0x007f}, {0x8ac8, 0x0082}, {0x8ac9, 0x0006}, +{0x8aca, 0x0039}, { 0x0, 0x0 } +}; +#endif + + +/* phy types */ +#define CAS_PHY_UNKNOWN 0x00 +#define CAS_PHY_SERDES 0x01 +#define CAS_PHY_MII_MDIO0 0x02 +#define CAS_PHY_MII_MDIO1 0x04 +#define CAS_PHY_MII(x) ((x) & (CAS_PHY_MII_MDIO0 | CAS_PHY_MII_MDIO1)) + +/* _RING_INDEX is the index for the ring sizes to be used. _RING_SIZE + * is the actual size. the default index for the various rings is + * 8. NOTE: there a bunch of alignment constraints for the rings. to + * deal with that, i just allocate rings to create the desired + * alignment. here are the constraints: + * RX DESC and COMP rings must be 8KB aligned + * TX DESC must be 2KB aligned. + * if you change the numbers, be cognizant of how the alignment will change + * in INIT_BLOCK as well. + */ + +#define DESC_RING_I_TO_S(x) (32*(1 << (x))) +#define COMP_RING_I_TO_S(x) (128*(1 << (x))) +#define TX_DESC_RING_INDEX 4 /* 512 = 8k */ +#define RX_DESC_RING_INDEX 4 /* 512 = 8k */ +#define RX_COMP_RING_INDEX 4 /* 2048 = 64k: should be 4x rx ring size */ + +#if (TX_DESC_RING_INDEX > 8) || (TX_DESC_RING_INDEX < 0) +#error TX_DESC_RING_INDEX must be between 0 and 8 +#endif + +#if (RX_DESC_RING_INDEX > 8) || (RX_DESC_RING_INDEX < 0) +#error RX_DESC_RING_INDEX must be between 0 and 8 +#endif + +#if (RX_COMP_RING_INDEX > 8) || (RX_COMP_RING_INDEX < 0) +#error RX_COMP_RING_INDEX must be between 0 and 8 +#endif + +#define N_TX_RINGS MAX_TX_RINGS /* for QoS */ +#define N_TX_RINGS_MASK MAX_TX_RINGS_MASK +#define N_RX_DESC_RINGS MAX_RX_DESC_RINGS /* 1 for ipsec */ +#define N_RX_COMP_RINGS 0x1 /* for mult. PCI interrupts */ + +/* number of flows that can go through re-assembly */ +#define N_RX_FLOWS 64 + +#define TX_DESC_RING_SIZE DESC_RING_I_TO_S(TX_DESC_RING_INDEX) +#define RX_DESC_RING_SIZE DESC_RING_I_TO_S(RX_DESC_RING_INDEX) +#define RX_COMP_RING_SIZE COMP_RING_I_TO_S(RX_COMP_RING_INDEX) +#define TX_DESC_RINGN_INDEX(x) TX_DESC_RING_INDEX +#define RX_DESC_RINGN_INDEX(x) RX_DESC_RING_INDEX +#define RX_COMP_RINGN_INDEX(x) RX_COMP_RING_INDEX +#define TX_DESC_RINGN_SIZE(x) TX_DESC_RING_SIZE +#define RX_DESC_RINGN_SIZE(x) RX_DESC_RING_SIZE +#define RX_COMP_RINGN_SIZE(x) RX_COMP_RING_SIZE + +/* convert values */ +#define CAS_BASE(x, y) (((y) << (x ## _SHIFT)) & (x ## _MASK)) +#define CAS_VAL(x, y) (((y) & (x ## _MASK)) >> (x ## _SHIFT)) +#define CAS_TX_RINGN_BASE(y) ((TX_DESC_RINGN_INDEX(y) << \ + TX_CFG_DESC_RINGN_SHIFT(y)) & \ + TX_CFG_DESC_RINGN_MASK(y)) + +/* min is 2k, but we can't do jumbo frames unless it's at least 8k */ +#define CAS_MIN_PAGE_SHIFT 11 /* 2048 */ +#define CAS_JUMBO_PAGE_SHIFT 13 /* 8192 */ +#define CAS_MAX_PAGE_SHIFT 14 /* 16384 */ + +#define TX_DESC_BUFLEN_MASK 0x0000000000003FFFULL /* buffer length in + bytes. 0 - 9256 */ +#define TX_DESC_BUFLEN_SHIFT 0 +#define TX_DESC_CSUM_START_MASK 0x00000000001F8000ULL /* checksum start. # + of bytes to be + skipped before + csum calc begins. + value must be + even */ +#define TX_DESC_CSUM_START_SHIFT 15 +#define TX_DESC_CSUM_STUFF_MASK 0x000000001FE00000ULL /* checksum stuff. + byte offset w/in + the pkt for the + 1st csum byte. + must be > 8 */ +#define TX_DESC_CSUM_STUFF_SHIFT 21 +#define TX_DESC_CSUM_EN 0x0000000020000000ULL /* enable checksum */ +#define TX_DESC_EOF 0x0000000040000000ULL /* end of frame */ +#define TX_DESC_SOF 0x0000000080000000ULL /* start of frame */ +#define TX_DESC_INTME 0x0000000100000000ULL /* interrupt me */ +#define TX_DESC_NO_CRC 0x0000000200000000ULL /* debugging only. + CRC will not be + inserted into + outgoing frame. */ +struct cas_tx_desc { + u64 control; + u64 buffer; +}; + +/* descriptor ring for free buffers contains page-sized buffers. the index + * value is not used by the hw in any way. it's just stored and returned in + * the completion ring. + */ +struct cas_rx_desc { + u64 index; + u64 buffer; +}; + +/* received packets are put on the completion ring. */ +/* word 1 */ +#define RX_COMP1_DATA_SIZE_MASK 0x0000000007FFE000ULL +#define RX_COMP1_DATA_SIZE_SHIFT 13 +#define RX_COMP1_DATA_OFF_MASK 0x000001FFF8000000ULL +#define RX_COMP1_DATA_OFF_SHIFT 27 +#define RX_COMP1_DATA_INDEX_MASK 0x007FFE0000000000ULL +#define RX_COMP1_DATA_INDEX_SHIFT 41 +#define RX_COMP1_SKIP_MASK 0x0180000000000000ULL +#define RX_COMP1_SKIP_SHIFT 55 +#define RX_COMP1_RELEASE_NEXT 0x0200000000000000ULL +#define RX_COMP1_SPLIT_PKT 0x0400000000000000ULL +#define RX_COMP1_RELEASE_FLOW 0x0800000000000000ULL +#define RX_COMP1_RELEASE_DATA 0x1000000000000000ULL +#define RX_COMP1_RELEASE_HDR 0x2000000000000000ULL +#define RX_COMP1_TYPE_MASK 0xC000000000000000ULL +#define RX_COMP1_TYPE_SHIFT 62 + +/* word 2 */ +#define RX_COMP2_NEXT_INDEX_MASK 0x00000007FFE00000ULL +#define RX_COMP2_NEXT_INDEX_SHIFT 21 +#define RX_COMP2_HDR_SIZE_MASK 0x00000FF800000000ULL +#define RX_COMP2_HDR_SIZE_SHIFT 35 +#define RX_COMP2_HDR_OFF_MASK 0x0003F00000000000ULL +#define RX_COMP2_HDR_OFF_SHIFT 44 +#define RX_COMP2_HDR_INDEX_MASK 0xFFFC000000000000ULL +#define RX_COMP2_HDR_INDEX_SHIFT 50 + +/* word 3 */ +#define RX_COMP3_SMALL_PKT 0x0000000000000001ULL +#define RX_COMP3_JUMBO_PKT 0x0000000000000002ULL +#define RX_COMP3_JUMBO_HDR_SPLIT_EN 0x0000000000000004ULL +#define RX_COMP3_CSUM_START_MASK 0x000000000007F000ULL +#define RX_COMP3_CSUM_START_SHIFT 12 +#define RX_COMP3_FLOWID_MASK 0x0000000001F80000ULL +#define RX_COMP3_FLOWID_SHIFT 19 +#define RX_COMP3_OPCODE_MASK 0x000000000E000000ULL +#define RX_COMP3_OPCODE_SHIFT 25 +#define RX_COMP3_FORCE_FLAG 0x0000000010000000ULL +#define RX_COMP3_NO_ASSIST 0x0000000020000000ULL +#define RX_COMP3_LOAD_BAL_MASK 0x000001F800000000ULL +#define RX_COMP3_LOAD_BAL_SHIFT 35 +#define RX_PLUS_COMP3_ENC_PKT 0x0000020000000000ULL /* cas+ */ +#define RX_COMP3_L3_HEAD_OFF_MASK 0x0000FE0000000000ULL /* cas */ +#define RX_COMP3_L3_HEAD_OFF_SHIFT 41 +#define RX_PLUS_COMP_L3_HEAD_OFF_MASK 0x0000FC0000000000ULL /* cas+ */ +#define RX_PLUS_COMP_L3_HEAD_OFF_SHIFT 42 +#define RX_COMP3_SAP_MASK 0xFFFF000000000000ULL +#define RX_COMP3_SAP_SHIFT 48 + +/* word 4 */ +#define RX_COMP4_TCP_CSUM_MASK 0x000000000000FFFFULL +#define RX_COMP4_TCP_CSUM_SHIFT 0 +#define RX_COMP4_PKT_LEN_MASK 0x000000003FFF0000ULL +#define RX_COMP4_PKT_LEN_SHIFT 16 +#define RX_COMP4_PERFECT_MATCH_MASK 0x00000003C0000000ULL +#define RX_COMP4_PERFECT_MATCH_SHIFT 30 +#define RX_COMP4_ZERO 0x0000080000000000ULL +#define RX_COMP4_HASH_VAL_MASK 0x0FFFF00000000000ULL +#define RX_COMP4_HASH_VAL_SHIFT 44 +#define RX_COMP4_HASH_PASS 0x1000000000000000ULL +#define RX_COMP4_BAD 0x4000000000000000ULL +#define RX_COMP4_LEN_MISMATCH 0x8000000000000000ULL + +/* we encode the following: ring/index/release. only 14 bits + * are usable. + * NOTE: the encoding is dependent upon RX_DESC_RING_SIZE and + * MAX_RX_DESC_RINGS. */ +#define RX_INDEX_NUM_MASK 0x0000000000000FFFULL +#define RX_INDEX_NUM_SHIFT 0 +#define RX_INDEX_RING_MASK 0x0000000000001000ULL +#define RX_INDEX_RING_SHIFT 12 +#define RX_INDEX_RELEASE 0x0000000000002000ULL + +struct cas_rx_comp { + u64 word1; + u64 word2; + u64 word3; + u64 word4; +}; + +enum link_state { + link_down = 0, /* No link, will retry */ + link_aneg, /* Autoneg in progress */ + link_force_try, /* Try Forced link speed */ + link_force_ret, /* Forced mode worked, retrying autoneg */ + link_force_ok, /* Stay in forced mode */ + link_up /* Link is up */ +}; + +typedef struct cas_page { + struct list_head list; + struct page *buffer; + dma_addr_t dma_addr; + int used; +} cas_page_t; + + +/* some alignment constraints: + * TX DESC, RX DESC, and RX COMP must each be 8K aligned. + * TX COMPWB must be 8-byte aligned. + * to accomplish this, here's what we do: + * + * INIT_BLOCK_RX_COMP = 64k (already aligned) + * INIT_BLOCK_RX_DESC = 8k + * INIT_BLOCK_TX = 8k + * INIT_BLOCK_RX1_DESC = 8k + * TX COMPWB + */ +#define INIT_BLOCK_TX (TX_DESC_RING_SIZE) +#define INIT_BLOCK_RX_DESC (RX_DESC_RING_SIZE) +#define INIT_BLOCK_RX_COMP (RX_COMP_RING_SIZE) + +struct cas_init_block { + struct cas_rx_comp rxcs[N_RX_COMP_RINGS][INIT_BLOCK_RX_COMP]; + struct cas_rx_desc rxds[N_RX_DESC_RINGS][INIT_BLOCK_RX_DESC]; + struct cas_tx_desc txds[N_TX_RINGS][INIT_BLOCK_TX]; + u64 tx_compwb; +}; + +/* tiny buffers to deal with target abort issue. we allocate a bit + * over so that we don't have target abort issues with these buffers + * as well. + */ +#define TX_TINY_BUF_LEN 0x100 +#define TX_TINY_BUF_BLOCK ((INIT_BLOCK_TX + 1)*TX_TINY_BUF_LEN) + +struct cas_tiny_count { + int nbufs; + int used; +}; + +struct cas { + spinlock_t lock; /* for most bits */ + spinlock_t tx_lock[N_TX_RINGS]; /* tx bits */ + spinlock_t stat_lock[N_TX_RINGS + 1]; /* for stat gathering */ + spinlock_t rx_inuse_lock; /* rx inuse list */ + spinlock_t rx_spare_lock; /* rx spare list */ + + void __iomem *regs; + int tx_new[N_TX_RINGS], tx_old[N_TX_RINGS]; + int rx_old[N_RX_DESC_RINGS]; + int rx_cur[N_RX_COMP_RINGS], rx_new[N_RX_COMP_RINGS]; + int rx_last[N_RX_DESC_RINGS]; + + /* Set when chip is actually in operational state + * (ie. not power managed) */ + int hw_running; + int opened; + struct semaphore pm_sem; /* open/close/suspend/resume */ + + struct cas_init_block *init_block; + struct cas_tx_desc *init_txds[MAX_TX_RINGS]; + struct cas_rx_desc *init_rxds[MAX_RX_DESC_RINGS]; + struct cas_rx_comp *init_rxcs[MAX_RX_COMP_RINGS]; + + /* we use sk_buffs for tx and pages for rx. the rx skbuffs + * are there for flow re-assembly. */ + struct sk_buff *tx_skbs[N_TX_RINGS][TX_DESC_RING_SIZE]; + struct sk_buff_head rx_flows[N_RX_FLOWS]; + cas_page_t *rx_pages[N_RX_DESC_RINGS][RX_DESC_RING_SIZE]; + struct list_head rx_spare_list, rx_inuse_list; + int rx_spares_needed; + + /* for small packets when copying would be quicker than + mapping */ + struct cas_tiny_count tx_tiny_use[N_TX_RINGS][TX_DESC_RING_SIZE]; + u8 *tx_tiny_bufs[N_TX_RINGS]; + + u32 msg_enable; + + /* N_TX_RINGS must be >= N_RX_DESC_RINGS */ + struct net_device_stats net_stats[N_TX_RINGS + 1]; + + u32 pci_cfg[64 >> 2]; + u8 pci_revision; + + int phy_type; + int phy_addr; + u32 phy_id; +#define CAS_FLAG_1000MB_CAP 0x00000001 +#define CAS_FLAG_REG_PLUS 0x00000002 +#define CAS_FLAG_TARGET_ABORT 0x00000004 +#define CAS_FLAG_SATURN 0x00000008 +#define CAS_FLAG_RXD_POST_MASK 0x000000F0 +#define CAS_FLAG_RXD_POST_SHIFT 4 +#define CAS_FLAG_RXD_POST(x) ((1 << (CAS_FLAG_RXD_POST_SHIFT + (x))) & \ + CAS_FLAG_RXD_POST_MASK) +#define CAS_FLAG_ENTROPY_DEV 0x00000100 +#define CAS_FLAG_NO_HW_CSUM 0x00000200 + u32 cas_flags; + int packet_min; /* minimum packet size */ + int tx_fifo_size; + int rx_fifo_size; + int rx_pause_off; + int rx_pause_on; + int crc_size; /* 4 if half-duplex */ + + int pci_irq_INTC; + int min_frame_size; /* for tx fifo workaround */ + + /* page size allocation */ + int page_size; + int page_order; + int mtu_stride; + + u32 mac_rx_cfg; + + /* Autoneg & PHY control */ + int link_cntl; + int link_fcntl; + enum link_state lstate; + struct timer_list link_timer; + int timer_ticks; + struct work_struct reset_task; +#if 0 + atomic_t reset_task_pending; +#else + atomic_t reset_task_pending; + atomic_t reset_task_pending_mtu; + atomic_t reset_task_pending_spare; + atomic_t reset_task_pending_all; +#endif + +#ifdef CONFIG_CASSINI_QGE_DEBUG + atomic_t interrupt_seen; /* 1 if any interrupts are getting through */ +#endif + + /* Link-down problem workaround */ +#define LINK_TRANSITION_UNKNOWN 0 +#define LINK_TRANSITION_ON_FAILURE 1 +#define LINK_TRANSITION_STILL_FAILED 2 +#define LINK_TRANSITION_LINK_UP 3 +#define LINK_TRANSITION_LINK_CONFIG 4 +#define LINK_TRANSITION_LINK_DOWN 5 +#define LINK_TRANSITION_REQUESTED_RESET 6 + int link_transition; + int link_transition_jiffies_valid; + unsigned long link_transition_jiffies; + + /* Tuning */ + u8 orig_cacheline_size; /* value when loaded */ +#define CAS_PREF_CACHELINE_SIZE 0x20 /* Minimum desired */ + + /* Diagnostic counters and state. */ + int casreg_len; /* reg-space size for dumping */ + u64 pause_entered; + u16 pause_last_time_recvd; + + dma_addr_t block_dvma, tx_tiny_dvma[N_TX_RINGS]; + struct pci_dev *pdev; + struct net_device *dev; +}; + +#define TX_DESC_NEXT(r, x) (((x) + 1) & (TX_DESC_RINGN_SIZE(r) - 1)) +#define RX_DESC_ENTRY(r, x) ((x) & (RX_DESC_RINGN_SIZE(r) - 1)) +#define RX_COMP_ENTRY(r, x) ((x) & (RX_COMP_RINGN_SIZE(r) - 1)) + +#define TX_BUFF_COUNT(r, x, y) ((x) <= (y) ? ((y) - (x)) : \ + (TX_DESC_RINGN_SIZE(r) - (x) + (y))) + +#define TX_BUFFS_AVAIL(cp, i) ((cp)->tx_old[(i)] <= (cp)->tx_new[(i)] ? \ + (cp)->tx_old[(i)] + (TX_DESC_RINGN_SIZE(i) - 1) - (cp)->tx_new[(i)] : \ + (cp)->tx_old[(i)] - (cp)->tx_new[(i)] - 1) + +#define CAS_ALIGN(addr, align) \ + (((unsigned long) (addr) + ((align) - 1UL)) & ~((align) - 1)) + +#define RX_FIFO_SIZE 16384 +#define EXPANSION_ROM_SIZE 65536 + +#define CAS_MC_EXACT_MATCH_SIZE 15 +#define CAS_MC_HASH_SIZE 256 +#define CAS_MC_HASH_MAX (CAS_MC_EXACT_MATCH_SIZE + \ + CAS_MC_HASH_SIZE) + +#define TX_TARGET_ABORT_LEN 0x20 +#define RX_SWIVEL_OFF_VAL 0x2 +#define RX_AE_FREEN_VAL(x) (RX_DESC_RINGN_SIZE(x) >> 1) +#define RX_AE_COMP_VAL (RX_COMP_RING_SIZE >> 1) +#define RX_BLANK_INTR_PKT_VAL 0x05 +#define RX_BLANK_INTR_TIME_VAL 0x0F +#define HP_TCP_THRESH_VAL 1530 /* reduce to enable reassembly */ + +#define RX_SPARE_COUNT (RX_DESC_RING_SIZE >> 1) +#define RX_SPARE_RECOVER_VAL (RX_SPARE_COUNT >> 2) + +#endif /* _CASSINI_H */ diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index 68f11ac1a314..eb36fd293b41 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -392,6 +392,7 @@ #define PCI_DEVICE_ID_NS_87560_USB 0x0012 #define PCI_DEVICE_ID_NS_83815 0x0020 #define PCI_DEVICE_ID_NS_83820 0x0022 +#define PCI_DEVICE_ID_NS_SATURN 0x0035 #define PCI_DEVICE_ID_NS_SCx200_BRIDGE 0x0500 #define PCI_DEVICE_ID_NS_SCx200_SMI 0x0501 #define PCI_DEVICE_ID_NS_SCx200_IDE 0x0502 @@ -983,6 +984,7 @@ #define PCI_DEVICE_ID_SUN_SABRE 0xa000 #define PCI_DEVICE_ID_SUN_HUMMINGBIRD 0xa001 #define PCI_DEVICE_ID_SUN_TOMATILLO 0xa801 +#define PCI_DEVICE_ID_SUN_CASSINI 0xabba #define PCI_VENDOR_ID_CMD 0x1095 #define PCI_DEVICE_ID_CMD_640 0x0640 From c3c4ed652e8f2c348ebdd3f2e45664a0e238ee52 Mon Sep 17 00:00:00 2001 From: Alexey Dobriyan Date: Tue, 27 Sep 2005 15:42:58 -0700 Subject: [PATCH 182/352] [ROSE]: do proto_unregister() on exit paths Signed-off-by: Alexey Dobriyan Signed-off-by: David S. Miller --- net/rose/af_rose.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c index 5acb1680524a..a190eaee702e 100644 --- a/net/rose/af_rose.c +++ b/net/rose/af_rose.c @@ -1481,12 +1481,14 @@ static int __init rose_proto_init(void) if (rose_ndevs > 0x7FFFFFFF/sizeof(struct net_device *)) { printk(KERN_ERR "ROSE: rose_proto_init - rose_ndevs parameter to large\n"); + proto_unregister(&rose_proto); return -1; } dev_rose = kmalloc(rose_ndevs * sizeof(struct net_device *), GFP_KERNEL); if (dev_rose == NULL) { printk(KERN_ERR "ROSE: rose_proto_init - unable to allocate device structure\n"); + proto_unregister(&rose_proto); return -1; } From 70ff3b66d79c5110e533f3f2aea1a5b2fc5f8d90 Mon Sep 17 00:00:00 2001 From: Alexey Dobriyan Date: Tue, 27 Sep 2005 15:43:46 -0700 Subject: [PATCH 183/352] [ROSE]: return sane -E* from rose_proto_init() Signed-off-by: Alexey Dobriyan Signed-off-by: David S. Miller --- net/rose/af_rose.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c index a190eaee702e..dbfb0e3dc798 100644 --- a/net/rose/af_rose.c +++ b/net/rose/af_rose.c @@ -1482,14 +1482,14 @@ static int __init rose_proto_init(void) if (rose_ndevs > 0x7FFFFFFF/sizeof(struct net_device *)) { printk(KERN_ERR "ROSE: rose_proto_init - rose_ndevs parameter to large\n"); proto_unregister(&rose_proto); - return -1; + return -EINVAL; } dev_rose = kmalloc(rose_ndevs * sizeof(struct net_device *), GFP_KERNEL); if (dev_rose == NULL) { printk(KERN_ERR "ROSE: rose_proto_init - unable to allocate device structure\n"); proto_unregister(&rose_proto); - return -1; + return -ENOMEM; } memset(dev_rose, 0x00, rose_ndevs * sizeof(struct net_device*)); @@ -1502,9 +1502,11 @@ static int __init rose_proto_init(void) name, rose_setup); if (!dev) { printk(KERN_ERR "ROSE: rose_proto_init - unable to allocate memory\n"); + rc = -ENOMEM; goto fail; } - if (register_netdev(dev)) { + rc = register_netdev(dev); + if (rc) { printk(KERN_ERR "ROSE: netdevice regeistration failed\n"); free_netdev(dev); goto fail; @@ -1539,7 +1541,7 @@ fail: } kfree(dev_rose); proto_unregister(&rose_proto); - return -ENOMEM; + goto out; } module_init(rose_proto_init); From a83cd2cc90bd9390cf03cd40bba204d9ed520633 Mon Sep 17 00:00:00 2001 From: Alexey Dobriyan Date: Tue, 27 Sep 2005 15:44:36 -0700 Subject: [PATCH 184/352] [ROSE]: check rose_ndevs earlier * Don't bother with proto registering if rose_ndevs is bad. * Make escape structure more coherent. Signed-off-by: Alexey Dobriyan Signed-off-by: David S. Miller --- net/rose/af_rose.c | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-) diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c index dbfb0e3dc798..0f96565a64ec 100644 --- a/net/rose/af_rose.c +++ b/net/rose/af_rose.c @@ -1472,24 +1472,25 @@ static const char banner[] = KERN_INFO "F6FBB/G4KLX ROSE for Linux. Version 0.62 static int __init rose_proto_init(void) { int i; - int rc = proto_register(&rose_proto, 0); + int rc; + if (rose_ndevs > 0x7FFFFFFF/sizeof(struct net_device *)) { + printk(KERN_ERR "ROSE: rose_proto_init - rose_ndevs parameter to large\n"); + rc = -EINVAL; + goto out; + } + + rc = proto_register(&rose_proto, 0); if (rc != 0) goto out; rose_callsign = null_ax25_address; - if (rose_ndevs > 0x7FFFFFFF/sizeof(struct net_device *)) { - printk(KERN_ERR "ROSE: rose_proto_init - rose_ndevs parameter to large\n"); - proto_unregister(&rose_proto); - return -EINVAL; - } - dev_rose = kmalloc(rose_ndevs * sizeof(struct net_device *), GFP_KERNEL); if (dev_rose == NULL) { printk(KERN_ERR "ROSE: rose_proto_init - unable to allocate device structure\n"); - proto_unregister(&rose_proto); - return -ENOMEM; + rc = -ENOMEM; + goto out_proto_unregister; } memset(dev_rose, 0x00, rose_ndevs * sizeof(struct net_device*)); @@ -1540,6 +1541,7 @@ fail: free_netdev(dev_rose[i]); } kfree(dev_rose); +out_proto_unregister: proto_unregister(&rose_proto); goto out; } From 520d1b830a93086c1f9e969d98f7ef01f0356493 Mon Sep 17 00:00:00 2001 From: Alexey Dobriyan Date: Tue, 27 Sep 2005 15:45:15 -0700 Subject: [PATCH 185/352] [ROSE]: fix typo (regeistration) Signed-off-by: Alexey Dobriyan Signed-off-by: David S. Miller --- net/rose/af_rose.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c index 0f96565a64ec..829fdbc4400b 100644 --- a/net/rose/af_rose.c +++ b/net/rose/af_rose.c @@ -1508,7 +1508,7 @@ static int __init rose_proto_init(void) } rc = register_netdev(dev); if (rc) { - printk(KERN_ERR "ROSE: netdevice regeistration failed\n"); + printk(KERN_ERR "ROSE: netdevice registration failed\n"); free_netdev(dev); goto fail; } From 2fab35d78f32fc107e1af4b1ec23f557fa20d911 Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Tue, 27 Sep 2005 15:59:43 -0700 Subject: [PATCH 186/352] [NET]: Fix GCC4 compile error: sysctl in linux/if_ether.h The following is generated when compiling a recent (2.6.14-rc2-git5) kernel configured for ARM, with GCC4. CC init/main.o In file included from include/linux/netdevice.h:29, from include/net/sock.h:48, from init/main.c:50: include/linux/if_ether.h:114: error: array type has incomplete element type It seems that if CONFIG_SYSCTL is not set, then the compiler will throw an error due to the definition of the ether_table[] array Attached is a solution to the problem Signed-off-by: Ben Dooks Signed-off-by: David S. Miller --- include/linux/if_ether.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/linux/if_ether.h b/include/linux/if_ether.h index fc2d4c8225aa..d21c305c6c64 100644 --- a/include/linux/if_ether.h +++ b/include/linux/if_ether.h @@ -111,7 +111,9 @@ static inline struct ethhdr *eth_hdr(const struct sk_buff *skb) return (struct ethhdr *)skb->mac.raw; } +#ifdef CONFIG_SYSCTL extern struct ctl_table ether_table[]; #endif +#endif #endif /* _LINUX_IF_ETHER_H */ From ba645c16026ed733a51f904df34756f61bc155fc Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 27 Sep 2005 16:03:05 -0700 Subject: [PATCH 187/352] [NET]: Slightly optimize ethernet address comparison. We know the thing is at least 2-byte aligned, so take advantage of that instead of invoking memcmp() which results in truly horrifically inefficient code because it can't assume anything about alignment. Signed-off-by: David S. Miller --- net/ethernet/eth.c | 31 +++++++++++++++++++++---------- 1 file changed, 21 insertions(+), 10 deletions(-) diff --git a/net/ethernet/eth.c b/net/ethernet/eth.c index 87a052a9a84f..8b299cc82060 100644 --- a/net/ethernet/eth.c +++ b/net/ethernet/eth.c @@ -146,6 +146,19 @@ int eth_rebuild_header(struct sk_buff *skb) return 0; } +static inline unsigned int compare_eth_addr(const unsigned char *__a, const unsigned char *__b) +{ + const unsigned short *dest = (unsigned short *) __a; + const unsigned short *devaddr = (unsigned short *) __b; + unsigned int res; + + BUILD_BUG_ON(ETH_ALEN != 6); + res = ((dest[0] ^ devaddr[0]) | + (dest[1] ^ devaddr[1]) | + (dest[2] ^ devaddr[2])) != 0; + + return res; +} /* * Determine the packet's protocol ID. The rule here is that we @@ -158,16 +171,15 @@ __be16 eth_type_trans(struct sk_buff *skb, struct net_device *dev) struct ethhdr *eth; unsigned char *rawp; - skb->mac.raw=skb->data; + skb->mac.raw = skb->data; skb_pull(skb,ETH_HLEN); eth = eth_hdr(skb); - if(*eth->h_dest&1) - { - if(memcmp(eth->h_dest,dev->broadcast, ETH_ALEN)==0) - skb->pkt_type=PACKET_BROADCAST; + if (*eth->h_dest&1) { + if (!compare_eth_addr(eth->h_dest, dev->broadcast)) + skb->pkt_type = PACKET_BROADCAST; else - skb->pkt_type=PACKET_MULTICAST; + skb->pkt_type = PACKET_MULTICAST; } /* @@ -178,10 +190,9 @@ __be16 eth_type_trans(struct sk_buff *skb, struct net_device *dev) * seems to set IFF_PROMISC. */ - else if(1 /*dev->flags&IFF_PROMISC*/) - { - if(memcmp(eth->h_dest,dev->dev_addr, ETH_ALEN)) - skb->pkt_type=PACKET_OTHERHOST; + else if(1 /*dev->flags&IFF_PROMISC*/) { + if (unlikely(!compare_eth_addr(eth->h_dest, dev->dev_addr))) + skb->pkt_type = PACKET_OTHERHOST; } if (ntohs(eth->h_proto) >= 1536) From 64233bffbb50f12e576c61d1698a573c8033004a Mon Sep 17 00:00:00 2001 From: Oliver Dawid Date: Tue, 27 Sep 2005 16:11:29 -0700 Subject: [PATCH 188/352] [APPLETALK]: Fix broadcast bug. From: Oliver Dawid we found a bug in net/appletalk/ddp.c concerning broadcast packets. In kernel 2.4 it was working fine. The bug first occured 4 years ago when switching to new SNAP layer handling. This bug can be splitted up into a sending(1) and reception(2) problem: Sending(1) In kernel 2.4 broadcast packets were sent to a matching ethernet device and atalk_rcv() was called to receive it as "loopback" (so loopback packets were shortcutted and handled in DDP layer). When switching to the new SNAP structure, this shortcut was removed and the loopback packet was send to SNAP layer. The author forgot to replace the remote device pointer by the loopback device pointer before sending the packet to SNAP layer (by calling ddp_dl->request() ) therfor the packet was not sent back by underlying layers to ddp's atalk_rcv(). Reception(2) In atalk_rcv() a packet received by this loopback mechanism contains now the (rigth) loopback device pointer (in Kernel 2.4 it was the (wrong) remote ethernet device pointer) and therefor no matching socket will be found to deliver this packet to. Because a broadcast packet should be send to the first matching socket (as it is done in many other protocols (?)), we removed the network comparison in broadcast case. Below you will find a patch to correct this bug. Its diffed to kernel 2.6.14-rc1 Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: David S. Miller --- net/appletalk/ddp.c | 31 ++++++++++++++++++++++--------- 1 file changed, 22 insertions(+), 9 deletions(-) diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c index 1d31b3a3f1e5..7982656b9c83 100644 --- a/net/appletalk/ddp.c +++ b/net/appletalk/ddp.c @@ -100,8 +100,7 @@ static struct sock *atalk_search_socket(struct sockaddr_at *to, continue; if (to->sat_addr.s_net == ATADDR_ANYNET && - to->sat_addr.s_node == ATADDR_BCAST && - at->src_net == atif->address.s_net) + to->sat_addr.s_node == ATADDR_BCAST) goto found; if (to->sat_addr.s_net == at->src_net && @@ -1443,8 +1442,10 @@ static int atalk_rcv(struct sk_buff *skb, struct net_device *dev, else atif = atalk_find_interface(ddp->deh_dnet, ddp->deh_dnode); - /* Not ours, so we route the packet via the correct AppleTalk iface */ if (!atif) { + /* Not ours, so we route the packet via the correct + * AppleTalk iface + */ atalk_route_packet(skb, dev, ddp, &ddphv, origlen); goto out; } @@ -1592,9 +1593,6 @@ static int atalk_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr if (usat->sat_addr.s_net || usat->sat_addr.s_node == ATADDR_ANYNODE) { rt = atrtr_find(&usat->sat_addr); - if (!rt) - return -ENETUNREACH; - dev = rt->dev; } else { struct atalk_addr at_hint; @@ -1603,11 +1601,12 @@ static int atalk_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr at_hint.s_net = at->src_net; rt = atrtr_find(&at_hint); - if (!rt) - return -ENETUNREACH; - dev = rt->dev; } + if (!rt) + return -ENETUNREACH; + + dev = rt->dev; SOCK_DEBUG(sk, "SK %p: Size needed %d, device %s\n", sk, size, dev->name); @@ -1677,6 +1676,20 @@ static int atalk_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr SOCK_DEBUG(sk, "SK %p: Loop back.\n", sk); /* loop back */ skb_orphan(skb); + if (ddp->deh_dnode == ATADDR_BCAST) { + struct atalk_addr at_lo; + + at_lo.s_node = 0; + at_lo.s_net = 0; + + rt = atrtr_find(&at_lo); + if (!rt) { + kfree_skb(skb); + return -ENETUNREACH; + } + dev = rt->dev; + skb->dev = dev; + } ddp_dl->request(ddp_dl, skb, dev->dev_addr); } else { SOCK_DEBUG(sk, "SK %p: send out.\n", sk); From f16af555cc46a724507da371fbac94b430c93315 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 27 Sep 2005 22:37:08 -0700 Subject: [PATCH 189/352] [SPARC64]: Add defines for 32MB/256MB PTE page size on Ultra-IV+. Signed-off-by: David S. Miller --- include/asm-sparc64/pgtable.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/include/asm-sparc64/pgtable.h b/include/asm-sparc64/pgtable.h index 43cbb089cde2..53d612aba8d5 100644 --- a/include/asm-sparc64/pgtable.h +++ b/include/asm-sparc64/pgtable.h @@ -98,7 +98,9 @@ #define _PAGE_NFO _AC(0x1000000000000000,UL) /* No Fault Only */ #define _PAGE_IE _AC(0x0800000000000000,UL) /* Invert Endianness */ #define _PAGE_SOFT2 _AC(0x07FC000000000000,UL) /* Software bits, set 2 */ -#define _PAGE_RES1 _AC(0x0003000000000000,UL) /* Reserved */ +#define _PAGE_RES1 _AC(0x0002000000000000,UL) /* Reserved */ +#define _PAGE_SZ32MB _AC(0x0001000000000000,UL) /* (Panther) 32MB page */ +#define _PAGE_SZ256MB _AC(0x2001000000000000,UL) /* (Panther) 256MB page */ #define _PAGE_SN _AC(0x0000800000000000,UL) /* (Cheetah) Snoop */ #define _PAGE_RES2 _AC(0x0000780000000000,UL) /* Reserved */ #define _PAGE_PADDR_SF _AC(0x000001FFFFFFE000,UL) /* (Spitfire) paddr[40:13]*/ From d2212bc7db13268bef0799d9ff4b2e511c284885 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 27 Sep 2005 22:50:06 -0700 Subject: [PATCH 190/352] [SPARC64]: Add missing IDs for newer cpus. Also, the us3_cpufreq driver can work on Ultra-IV and IV+. They use the SAFARI bus register to control the clock divider just like Ultra-III and III+ do. Signed-off-by: David S. Miller --- arch/sparc64/kernel/cpu.c | 4 ++++ arch/sparc64/kernel/us3_cpufreq.c | 5 ++++- include/asm-sparc64/head.h | 9 ++++++--- 3 files changed, 14 insertions(+), 4 deletions(-) diff --git a/arch/sparc64/kernel/cpu.c b/arch/sparc64/kernel/cpu.c index 48756958116b..77ef5df4e5a7 100644 --- a/arch/sparc64/kernel/cpu.c +++ b/arch/sparc64/kernel/cpu.c @@ -39,6 +39,8 @@ struct cpu_fp_info linux_sparc_fpu[] = { { 0x3e, 0x15, 0, "UltraSparc III+ integrated FPU"}, { 0x3e, 0x16, 0, "UltraSparc IIIi integrated FPU"}, { 0x3e, 0x18, 0, "UltraSparc IV integrated FPU"}, + { 0x3e, 0x19, 0, "UltraSparc IV+ integrated FPU"}, + { 0x3e, 0x22, 0, "UltraSparc IIIi+ integrated FPU"}, }; #define NSPARCFPU (sizeof(linux_sparc_fpu)/sizeof(struct cpu_fp_info)) @@ -53,6 +55,8 @@ struct cpu_iu_info linux_sparc_chips[] = { { 0x3e, 0x15, "TI UltraSparc III+ (Cheetah+)"}, { 0x3e, 0x16, "TI UltraSparc IIIi (Jalapeno)"}, { 0x3e, 0x18, "TI UltraSparc IV (Jaguar)"}, + { 0x3e, 0x19, "TI UltraSparc IV+ (Panther)"}, + { 0x3e, 0x22, "TI UltraSparc IIIi+ (Serrano)"}, }; #define NSPARCCHIPS (sizeof(linux_sparc_chips)/sizeof(struct cpu_iu_info)) diff --git a/arch/sparc64/kernel/us3_cpufreq.c b/arch/sparc64/kernel/us3_cpufreq.c index 9080e7cd4bb0..0340041f6143 100644 --- a/arch/sparc64/kernel/us3_cpufreq.c +++ b/arch/sparc64/kernel/us3_cpufreq.c @@ -208,7 +208,10 @@ static int __init us3_freq_init(void) impl = ((ver >> 32) & 0xffff); if (manuf == CHEETAH_MANUF && - (impl == CHEETAH_IMPL || impl == CHEETAH_PLUS_IMPL)) { + (impl == CHEETAH_IMPL || + impl == CHEETAH_PLUS_IMPL || + impl == JAGUAR_IMPL || + impl == PANTHER_IMPL)) { struct cpufreq_driver *driver; ret = -ENOMEM; diff --git a/include/asm-sparc64/head.h b/include/asm-sparc64/head.h index b63a33cf4971..0abd3a674e8f 100644 --- a/include/asm-sparc64/head.h +++ b/include/asm-sparc64/head.h @@ -12,9 +12,12 @@ #define __JALAPENO_ID 0x003e0016 #define CHEETAH_MANUF 0x003e -#define CHEETAH_IMPL 0x0014 -#define CHEETAH_PLUS_IMPL 0x0015 -#define JALAPENO_IMPL 0x0016 +#define CHEETAH_IMPL 0x0014 /* Ultra-III */ +#define CHEETAH_PLUS_IMPL 0x0015 /* Ultra-III+ */ +#define JALAPENO_IMPL 0x0016 /* Ultra-IIIi */ +#define JAGUAR_IMPL 0x0018 /* Ultra-IV */ +#define PANTHER_IMPL 0x0019 /* Ultra-IV+ */ +#define SERRANO_IMPL 0x0022 /* Ultra-IIIi+ */ #define BRANCH_IF_CHEETAH_BASE(tmp1,tmp2,label) \ rdpr %ver, %tmp1; \ From 8b1f3124618b54cf125dea3a074b9cf469117723 Mon Sep 17 00:00:00 2001 From: Nick Piggin Date: Tue, 27 Sep 2005 21:45:18 -0700 Subject: [PATCH 191/352] [PATCH] mm: move_pte to remap ZERO_PAGE Move the ZERO_PAGE remapping complexity to the move_pte macro in asm-generic, have it conditionally depend on __HAVE_ARCH_MULTIPLE_ZERO_PAGE, which gets defined for MIPS. For architectures without __HAVE_ARCH_MULTIPLE_ZERO_PAGE, move_pte becomes a noop. From: Hugh Dickins Fix nasty little bug we've missed in Nick's mremap move ZERO_PAGE patch. The "pte" at that point may be a swap entry or a pte_file entry: we must check pte_present before perhaps corrupting such an entry. Patch below against 2.6.14-rc2-mm1, but the same bug is in 2.6.14-rc2's mm/mremap.c, and more dangerous there since it's affecting all arches: I think the safest course is to send Nick's patch and Yoichi's build fix and this fix (build tested) on to Linus - so only MIPS can be affected. Signed-off-by: Nick Piggin Signed-off-by: Hugh Dickins Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-generic/pgtable.h | 13 +++++++++++++ include/asm-mips/pgtable.h | 2 ++ mm/mremap.c | 6 +++--- 3 files changed, 18 insertions(+), 3 deletions(-) diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h index f86c1e549466..ff28c8b31f58 100644 --- a/include/asm-generic/pgtable.h +++ b/include/asm-generic/pgtable.h @@ -158,6 +158,19 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addres #define lazy_mmu_prot_update(pte) do { } while (0) #endif +#ifndef __HAVE_ARCH_MULTIPLE_ZERO_PAGE +#define move_pte(pte, prot, old_addr, new_addr) (pte) +#else +#define move_pte(pte, prot, old_addr, new_addr) \ +({ \ + pte_t newpte = (pte); \ + if (pte_present(pte) && pfn_valid(pte_pfn(pte)) && \ + pte_page(pte) == ZERO_PAGE(old_addr)) \ + newpte = mk_pte(ZERO_PAGE(new_addr), (prot)); \ + newpte; \ +}) +#endif + /* * When walking page tables, get the address of the next boundary, * or the end address of the range if that comes earlier. Although no diff --git a/include/asm-mips/pgtable.h b/include/asm-mips/pgtable.h index cbd1672c94cb..eaf5d9b3a0e1 100644 --- a/include/asm-mips/pgtable.h +++ b/include/asm-mips/pgtable.h @@ -68,6 +68,8 @@ extern unsigned long zero_page_mask; #define ZERO_PAGE(vaddr) \ (virt_to_page(empty_zero_page + (((unsigned long)(vaddr)) & zero_page_mask))) +#define __HAVE_ARCH_MULTIPLE_ZERO_PAGE + extern void paging_init(void); /* diff --git a/mm/mremap.c b/mm/mremap.c index a32fed454bd7..f343fc73a8bd 100644 --- a/mm/mremap.c +++ b/mm/mremap.c @@ -141,10 +141,10 @@ move_one_page(struct vm_area_struct *vma, unsigned long old_addr, if (dst) { pte_t pte; pte = ptep_clear_flush(vma, old_addr, src); + /* ZERO_PAGE can be dependant on virtual addr */ - if (pfn_valid(pte_pfn(pte)) && - pte_page(pte) == ZERO_PAGE(old_addr)) - pte = pte_wrprotect(mk_pte(ZERO_PAGE(new_addr), new_vma->vm_page_prot)); + pte = move_pte(pte, new_vma->vm_page_prot, + old_addr, new_addr); set_pte_at(mm, new_addr, dst, pte); } else error = -ENOMEM; From 909021ea7a8f4ef13af54935b87b03a20906e08a Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Tue, 27 Sep 2005 21:45:20 -0700 Subject: [PATCH 192/352] [PATCH] fuse: add required version info Add information about required version of the userspace library/utilities to Documentation/Changes. Also add pointer to this and to FUSE documentation from Kconfig. Thanks to Anton Altaparmakov for the reminder. Signed-off-by: Miklos Szeredi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/Changes | 10 ++++++++++ fs/Kconfig | 3 +++ 2 files changed, 13 insertions(+) diff --git a/Documentation/Changes b/Documentation/Changes index 5eaab0441d76..27232be26e1a 100644 --- a/Documentation/Changes +++ b/Documentation/Changes @@ -237,6 +237,12 @@ udev udev is a userspace application for populating /dev dynamically with only entries for devices actually present. udev replaces devfs. +FUSE +---- + +Needs libfuse 2.4.0 or later. Absolute minimum is 2.3.0 but mount +options 'direct_io' and 'kernel_cache' won't work. + Networking ========== @@ -390,6 +396,10 @@ udev ---- o +FUSE +---- +o + Networking ********** diff --git a/fs/Kconfig b/fs/Kconfig index 068ccea2f184..48f5422cb19a 100644 --- a/fs/Kconfig +++ b/fs/Kconfig @@ -472,6 +472,9 @@ config FUSE_FS utilities is available from the FUSE homepage: + See for more information. + See for needed library/utility version. + If you want to develop a userspace FS, or if you want to use a filesystem based on FUSE, answer Y or M. From ee4e52719ce474af339f4b81ece2ce9ecf920dfd Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Tue, 27 Sep 2005 21:45:21 -0700 Subject: [PATCH 193/352] [PATCH] fuse: check reserved node ID values This patch checks reserved node ID values returned by lookup and creation operations. In case one of the reserved values is sent, return -EIO. Signed-off-by: Miklos Szeredi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/fuse/dir.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c index e79e49b3eec7..29f1e9f6e85c 100644 --- a/fs/fuse/dir.c +++ b/fs/fuse/dir.c @@ -96,6 +96,8 @@ static int fuse_lookup_iget(struct inode *dir, struct dentry *entry, fuse_lookup_init(req, dir, entry, &outarg); request_send(fc, req); err = req->out.h.error; + if (!err && (!outarg.nodeid || outarg.nodeid == FUSE_ROOT_ID)) + err = -EIO; if (!err) { inode = fuse_iget(dir->i_sb, outarg.nodeid, outarg.generation, &outarg.attr); @@ -152,6 +154,10 @@ static int create_new_entry(struct fuse_conn *fc, struct fuse_req *req, fuse_put_request(fc, req); return err; } + if (!outarg.nodeid || outarg.nodeid == FUSE_ROOT_ID) { + fuse_put_request(fc, req); + return -EIO; + } inode = fuse_iget(dir->i_sb, outarg.nodeid, outarg.generation, &outarg.attr); if (!inode) { From 9ed6c2fb34a1fb493caec8a9644d05bb880a6923 Mon Sep 17 00:00:00 2001 From: Chris Sykes Date: Tue, 27 Sep 2005 21:45:22 -0700 Subject: [PATCH 194/352] [PATCH] Fix ext2_new_inode() failure paths Fix failure paths in ext2_new_inode() and clean up duplicated code: - DQUOT_DROP() was not being called if ext2_init_security() failed. Signed-off-by: Chris Sykes Cc: Stephen Smalley Cc: Jan Kara Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/ext2/ialloc.c | 25 +++++++++++++------------ 1 file changed, 13 insertions(+), 12 deletions(-) diff --git a/fs/ext2/ialloc.c b/fs/ext2/ialloc.c index c8d07030c897..e2d6208633a7 100644 --- a/fs/ext2/ialloc.c +++ b/fs/ext2/ialloc.c @@ -605,27 +605,28 @@ got: insert_inode_hash(inode); if (DQUOT_ALLOC_INODE(inode)) { - DQUOT_DROP(inode); err = -ENOSPC; - goto fail2; + goto fail_drop; } + err = ext2_init_acl(inode, dir); - if (err) { - DQUOT_FREE_INODE(inode); - DQUOT_DROP(inode); - goto fail2; - } + if (err) + goto fail_free_drop; + err = ext2_init_security(inode,dir); - if (err) { - DQUOT_FREE_INODE(inode); - goto fail2; - } + if (err) + goto fail_free_drop; + mark_inode_dirty(inode); ext2_debug("allocating inode %lu\n", inode->i_ino); ext2_preread_inode(inode); return inode; -fail2: +fail_free_drop: + DQUOT_FREE_INODE(inode); + +fail_drop: + DQUOT_DROP(inode); inode->i_flags |= S_NOQUOTA; inode->i_nlink = 0; iput(inode); From dc7b5fd6b0d3beb41f9e5e3a94dd1eadf52209f3 Mon Sep 17 00:00:00 2001 From: Chris Sykes Date: Tue, 27 Sep 2005 21:45:23 -0700 Subject: [PATCH 195/352] [PATCH] Fix ext3_new_inode() failure paths Fix failure paths in ext3_new_inode() and clean up duplicated code: - DQUOT_DROP() was not being called if ext3_init_security() failed. Signed-off-by: Chris Sykes Cc: Stephen Smalley Cc: Jan Kara Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/ext3/ialloc.c | 29 ++++++++++++++--------------- 1 file changed, 14 insertions(+), 15 deletions(-) diff --git a/fs/ext3/ialloc.c b/fs/ext3/ialloc.c index 96552769d039..6549945f9ac1 100644 --- a/fs/ext3/ialloc.c +++ b/fs/ext3/ialloc.c @@ -597,27 +597,22 @@ got: ret = inode; if(DQUOT_ALLOC_INODE(inode)) { - DQUOT_DROP(inode); err = -EDQUOT; - goto fail2; + goto fail_drop; } + err = ext3_init_acl(handle, inode, dir); - if (err) { - DQUOT_FREE_INODE(inode); - DQUOT_DROP(inode); - goto fail2; - } + if (err) + goto fail_free_drop; + err = ext3_init_security(handle,inode, dir); - if (err) { - DQUOT_FREE_INODE(inode); - goto fail2; - } + if (err) + goto fail_free_drop; + err = ext3_mark_inode_dirty(handle, inode); if (err) { ext3_std_error(sb, err); - DQUOT_FREE_INODE(inode); - DQUOT_DROP(inode); - goto fail2; + goto fail_free_drop; } ext3_debug("allocating inode %lu\n", inode->i_ino); @@ -631,7 +626,11 @@ really_out: brelse(bitmap_bh); return ret; -fail2: +fail_free_drop: + DQUOT_FREE_INODE(inode); + +fail_drop: + DQUOT_DROP(inode); inode->i_flags |= S_NOQUOTA; inode->i_nlink = 0; iput(inode); From 0b8dd17762194ec77066d339e0b2866b0c66b715 Mon Sep 17 00:00:00 2001 From: Latchesar Ionkov Date: Tue, 27 Sep 2005 21:45:24 -0700 Subject: [PATCH 196/352] [PATCH] v9fs: fix races in fid allocation Fid management cleanup. The patch attempts to fix the races in dentry's fid management. Dentries don't keep the opened fids anymore, they are moved to the file structs. Ideally there should be no more than one fid with fidcreate equal to zero in the dentry's list of fids. v9fs_fid_create initializes the important fields (fid, fidcreated) before v9fs_fid is added to the list. v9fs_fid_lookup returns only fids that are not created by v9fs_create. v9fs_fid_get_created returns the fid created by the same process by v9fs_create (if any) and removes it from dentry's list Signed-off-by: Latchesar Ionkov Cc: Eric Van Hensbergen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/9p/fid.c | 180 ++++++++++++++++++++++++--------------------- fs/9p/fid.h | 7 +- fs/9p/vfs_dentry.c | 2 +- fs/9p/vfs_dir.c | 11 +-- fs/9p/vfs_file.c | 88 +++++++--------------- fs/9p/vfs_inode.c | 91 +++++++++++++++-------- fs/9p/vfs_super.c | 21 ++---- 7 files changed, 202 insertions(+), 198 deletions(-) diff --git a/fs/9p/fid.c b/fs/9p/fid.c index 821c9c4d76aa..d95f8626d170 100644 --- a/fs/9p/fid.c +++ b/fs/9p/fid.c @@ -71,21 +71,28 @@ static int v9fs_fid_insert(struct v9fs_fid *fid, struct dentry *dentry) * */ -struct v9fs_fid *v9fs_fid_create(struct dentry *dentry) +struct v9fs_fid *v9fs_fid_create(struct dentry *dentry, + struct v9fs_session_info *v9ses, int fid, int create) { struct v9fs_fid *new; + dprintk(DEBUG_9P, "fid create dentry %p, fid %d, create %d\n", + dentry, fid, create); + new = kmalloc(sizeof(struct v9fs_fid), GFP_KERNEL); if (new == NULL) { dprintk(DEBUG_ERROR, "Out of Memory\n"); return ERR_PTR(-ENOMEM); } - new->fid = -1; + new->fid = fid; + new->v9ses = v9ses; new->fidopen = 0; - new->fidcreate = 0; + new->fidcreate = create; new->fidclunked = 0; new->iounit = 0; + new->rdir_pos = 0; + new->rdir_fcall = NULL; if (v9fs_fid_insert(new, dentry) == 0) return new; @@ -108,6 +115,59 @@ void v9fs_fid_destroy(struct v9fs_fid *fid) kfree(fid); } +/** + * v9fs_fid_walk_up - walks from the process current directory + * up to the specified dentry. + */ +static struct v9fs_fid *v9fs_fid_walk_up(struct dentry *dentry) +{ + int fidnum, cfidnum, err; + struct v9fs_fid *cfid; + struct dentry *cde; + struct v9fs_session_info *v9ses; + + v9ses = v9fs_inode2v9ses(current->fs->pwd->d_inode); + cfid = v9fs_fid_lookup(current->fs->pwd); + if (cfid == NULL) { + dprintk(DEBUG_ERROR, "process cwd doesn't have a fid\n"); + return ERR_PTR(-ENOENT); + } + + cfidnum = cfid->fid; + cde = current->fs->pwd; + /* TODO: take advantage of multiwalk */ + + fidnum = v9fs_get_idpool(&v9ses->fidpool); + if (fidnum < 0) { + dprintk(DEBUG_ERROR, "could not get a new fid num\n"); + err = -ENOENT; + goto clunk_fid; + } + + while (cde != dentry) { + if (cde == cde->d_parent) { + dprintk(DEBUG_ERROR, "can't find dentry\n"); + err = -ENOENT; + goto clunk_fid; + } + + err = v9fs_t_walk(v9ses, cfidnum, fidnum, "..", NULL); + if (err < 0) { + dprintk(DEBUG_ERROR, "problem walking to parent\n"); + goto clunk_fid; + } + + cfidnum = fidnum; + cde = cde->d_parent; + } + + return v9fs_fid_create(dentry, v9ses, fidnum, 0); + +clunk_fid: + v9fs_t_clunk(v9ses, fidnum, NULL); + return ERR_PTR(err); +} + /** * v9fs_fid_lookup - retrieve the right fid from a particular dentry * @dentry: dentry to look for fid in @@ -119,49 +179,25 @@ void v9fs_fid_destroy(struct v9fs_fid *fid) * */ -struct v9fs_fid *v9fs_fid_lookup(struct dentry *dentry, int type) +struct v9fs_fid *v9fs_fid_lookup(struct dentry *dentry) { struct list_head *fid_list = (struct list_head *)dentry->d_fsdata; struct v9fs_fid *current_fid = NULL; struct v9fs_fid *temp = NULL; struct v9fs_fid *return_fid = NULL; - int found_parent = 0; - int found_user = 0; - dprintk(DEBUG_9P, " dentry: %s (%p) type %d\n", dentry->d_iname, dentry, - type); + dprintk(DEBUG_9P, " dentry: %s (%p)\n", dentry->d_iname, dentry); - if (fid_list && !list_empty(fid_list)) { + if (fid_list) { list_for_each_entry_safe(current_fid, temp, fid_list, list) { - if (current_fid->uid == current->uid) { - if (return_fid == NULL) { - if ((type == FID_OP) - || (!current_fid->fidopen)) { - return_fid = current_fid; - found_user = 1; - } - } - } - if (current_fid->pid == current->real_parent->pid) { - if ((return_fid == NULL) || (found_parent) - || (found_user)) { - if ((type == FID_OP) - || (!current_fid->fidopen)) { - return_fid = current_fid; - found_parent = 1; - found_user = 0; - } - } - } - if (current_fid->pid == current->pid) { - if ((type == FID_OP) || - (!current_fid->fidopen)) { - return_fid = current_fid; - found_parent = 0; - found_user = 0; - } + if (!current_fid->fidcreate) { + return_fid = current_fid; + break; } } + + if (!return_fid) + return_fid = current_fid; } /* we are at the root but didn't match */ @@ -187,55 +223,33 @@ struct v9fs_fid *v9fs_fid_lookup(struct dentry *dentry, int type) /* XXX - there may be some duplication we can get rid of */ if (par == dentry) { - /* we need to fid_lookup the starting point */ - int fidnum = -1; - int oldfid = -1; - int result = -1; - struct v9fs_session_info *v9ses = - v9fs_inode2v9ses(current->fs->pwd->d_inode); - - current_fid = - v9fs_fid_lookup(current->fs->pwd, FID_WALK); - if (current_fid == NULL) { - dprintk(DEBUG_ERROR, - "process cwd doesn't have a fid\n"); - return return_fid; - } - oldfid = current_fid->fid; - par = current->fs->pwd; - /* TODO: take advantage of multiwalk */ - - fidnum = v9fs_get_idpool(&v9ses->fidpool); - if (fidnum < 0) { - dprintk(DEBUG_ERROR, - "could not get a new fid num\n"); - return return_fid; - } - - while (par != dentry) { - result = - v9fs_t_walk(v9ses, oldfid, fidnum, "..", - NULL); - if (result < 0) { - dprintk(DEBUG_ERROR, - "problem walking to parent\n"); - - break; - } - oldfid = fidnum; - if (par == par->d_parent) { - dprintk(DEBUG_ERROR, - "can't find dentry\n"); - break; - } - par = par->d_parent; - } - if (par == dentry) { - return_fid = v9fs_fid_create(dentry); - return_fid->fid = fidnum; - } + return_fid = v9fs_fid_walk_up(dentry); + if (IS_ERR(return_fid)) + return_fid = NULL; } } return return_fid; } + +struct v9fs_fid *v9fs_fid_get_created(struct dentry *dentry) +{ + struct list_head *fid_list; + struct v9fs_fid *fid, *ftmp, *ret; + + dprintk(DEBUG_9P, " dentry: %s (%p)\n", dentry->d_iname, dentry); + fid_list = (struct list_head *)dentry->d_fsdata; + ret = NULL; + if (fid_list) { + list_for_each_entry_safe(fid, ftmp, fid_list, list) { + if (fid->fidcreate && fid->pid == current->pid) { + list_del(&fid->list); + ret = fid; + break; + } + } + } + + dprintk(DEBUG_9P, "return %p\n", ret); + return ret; +} diff --git a/fs/9p/fid.h b/fs/9p/fid.h index 7db478ccca36..84c673a44c83 100644 --- a/fs/9p/fid.h +++ b/fs/9p/fid.h @@ -25,6 +25,7 @@ #define FID_OP 0 #define FID_WALK 1 +#define FID_CREATE 2 struct v9fs_fid { struct list_head list; /* list of fids associated with a dentry */ @@ -52,6 +53,8 @@ struct v9fs_fid { struct v9fs_session_info *v9ses; /* session info for this FID */ }; -struct v9fs_fid *v9fs_fid_lookup(struct dentry *dentry, int type); +struct v9fs_fid *v9fs_fid_lookup(struct dentry *dentry); +struct v9fs_fid *v9fs_fid_get_created(struct dentry *); void v9fs_fid_destroy(struct v9fs_fid *fid); -struct v9fs_fid *v9fs_fid_create(struct dentry *); +struct v9fs_fid *v9fs_fid_create(struct dentry *, + struct v9fs_session_info *v9ses, int fid, int create); diff --git a/fs/9p/vfs_dentry.c b/fs/9p/vfs_dentry.c index 306c96741f81..a6aa947de0f9 100644 --- a/fs/9p/vfs_dentry.c +++ b/fs/9p/vfs_dentry.c @@ -67,7 +67,7 @@ static int v9fs_dentry_validate(struct dentry *dentry, struct nameidata *nd) struct dentry *dc = current->fs->pwd; dprintk(DEBUG_VFS, "dentry: %s (%p)\n", dentry->d_iname, dentry); - if (v9fs_fid_lookup(dentry, FID_OP)) { + if (v9fs_fid_lookup(dentry)) { dprintk(DEBUG_VFS, "VALID\n"); return 1; } diff --git a/fs/9p/vfs_dir.c b/fs/9p/vfs_dir.c index c478a7384186..57a43b8feef5 100644 --- a/fs/9p/vfs_dir.c +++ b/fs/9p/vfs_dir.c @@ -197,21 +197,18 @@ int v9fs_dir_release(struct inode *inode, struct file *filp) filemap_fdatawait(inode->i_mapping); if (fidnum >= 0) { - fid->fidopen--; dprintk(DEBUG_VFS, "fidopen: %d v9f->fid: %d\n", fid->fidopen, fid->fid); - if (fid->fidopen == 0) { - if (v9fs_t_clunk(v9ses, fidnum, NULL)) - dprintk(DEBUG_ERROR, "clunk failed\n"); + if (v9fs_t_clunk(v9ses, fidnum, NULL)) + dprintk(DEBUG_ERROR, "clunk failed\n"); - v9fs_put_idpool(fid->fid, &v9ses->fidpool); - } + v9fs_put_idpool(fid->fid, &v9ses->fidpool); kfree(fid->rdir_fcall); + kfree(fid); filp->private_data = NULL; - v9fs_fid_destroy(fid); } d_drop(filp->f_dentry); diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c index 1f8ae7d580ab..a4799e971d1c 100644 --- a/fs/9p/vfs_file.c +++ b/fs/9p/vfs_file.c @@ -53,30 +53,36 @@ int v9fs_file_open(struct inode *inode, struct file *file) { struct v9fs_session_info *v9ses = v9fs_inode2v9ses(inode); - struct v9fs_fid *v9fid = v9fs_fid_lookup(file->f_dentry, FID_WALK); - struct v9fs_fid *v9newfid = NULL; + struct v9fs_fid *v9fid, *fid; struct v9fs_fcall *fcall = NULL; int open_mode = 0; unsigned int iounit = 0; int newfid = -1; long result = -1; - dprintk(DEBUG_VFS, "inode: %p file: %p v9fid= %p\n", inode, file, - v9fid); + dprintk(DEBUG_VFS, "inode: %p file: %p \n", inode, file); + + v9fid = v9fs_fid_get_created(file->f_dentry); + if (!v9fid) + v9fid = v9fs_fid_lookup(file->f_dentry); if (!v9fid) { - struct dentry *dentry = file->f_dentry; dprintk(DEBUG_ERROR, "Couldn't resolve fid from dentry\n"); + return -EBADF; + } - /* XXX - some duplication from lookup, generalize later */ - /* basically vfs_lookup is too heavy weight */ - v9fid = v9fs_fid_lookup(file->f_dentry, FID_OP); - if (!v9fid) - return -EBADF; + if (!v9fid->fidcreate) { + fid = kmalloc(sizeof(struct v9fs_fid), GFP_KERNEL); + if (fid == NULL) { + dprintk(DEBUG_ERROR, "Out of Memory\n"); + return -ENOMEM; + } - v9fid = v9fs_fid_lookup(dentry->d_parent, FID_WALK); - if (!v9fid) - return -EBADF; + fid->fidopen = 0; + fid->fidcreate = 0; + fid->fidclunked = 0; + fid->iounit = 0; + fid->v9ses = v9ses; newfid = v9fs_get_idpool(&v9ses->fidpool); if (newfid < 0) { @@ -85,58 +91,16 @@ int v9fs_file_open(struct inode *inode, struct file *file) } result = - v9fs_t_walk(v9ses, v9fid->fid, newfid, - (char *)file->f_dentry->d_name.name, NULL); + v9fs_t_walk(v9ses, v9fid->fid, newfid, NULL, NULL); + if (result < 0) { v9fs_put_idpool(newfid, &v9ses->fidpool); dprintk(DEBUG_ERROR, "rewalk didn't work\n"); return -EBADF; } - v9fid = v9fs_fid_create(dentry); - if (v9fid == NULL) { - dprintk(DEBUG_ERROR, "couldn't insert\n"); - return -ENOMEM; - } - v9fid->fid = newfid; - } - - if (v9fid->fidcreate) { - /* create case */ - newfid = v9fid->fid; - iounit = v9fid->iounit; - v9fid->fidcreate = 0; - } else { - if (!S_ISDIR(inode->i_mode)) - newfid = v9fid->fid; - else { - newfid = v9fs_get_idpool(&v9ses->fidpool); - if (newfid < 0) { - eprintk(KERN_WARNING, "allocation failed\n"); - return -ENOSPC; - } - /* This would be a somewhat critical clone */ - result = - v9fs_t_walk(v9ses, v9fid->fid, newfid, NULL, - &fcall); - if (result < 0) { - dprintk(DEBUG_ERROR, "clone error: %s\n", - FCALL_ERROR(fcall)); - kfree(fcall); - return result; - } - - v9newfid = v9fs_fid_create(file->f_dentry); - v9newfid->fid = newfid; - v9newfid->qid = v9fid->qid; - v9newfid->iounit = v9fid->iounit; - v9newfid->fidopen = 0; - v9newfid->fidclunked = 0; - v9newfid->v9ses = v9ses; - v9fid = v9newfid; - kfree(fcall); - } - + fid->fid = newfid; + v9fid = fid; /* TODO: do special things for O_EXCL, O_NOFOLLOW, O_SYNC */ /* translate open mode appropriately */ open_mode = file->f_flags & 0x3; @@ -163,9 +127,13 @@ int v9fs_file_open(struct inode *inode, struct file *file) iounit = fcall->params.ropen.iounit; kfree(fcall); + } else { + /* create case */ + newfid = v9fid->fid; + iounit = v9fid->iounit; + v9fid->fidcreate = 0; } - file->private_data = v9fid; v9fid->rdir_pos = 0; diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c index b16322db5ce6..2b696ae6655a 100644 --- a/fs/9p/vfs_inode.c +++ b/fs/9p/vfs_inode.c @@ -307,7 +307,7 @@ v9fs_create(struct inode *dir, struct v9fs_session_info *v9ses = v9fs_inode2v9ses(dir); struct super_block *sb = dir->i_sb; struct v9fs_fid *dirfid = - v9fs_fid_lookup(file_dentry->d_parent, FID_WALK); + v9fs_fid_lookup(file_dentry->d_parent); struct v9fs_fid *fid = NULL; struct inode *file_inode = NULL; struct v9fs_fcall *fcall = NULL; @@ -317,6 +317,7 @@ v9fs_create(struct inode *dir, long newfid = -1; int result = 0; unsigned int iounit = 0; + int wfidno = -1; perm = unixmode2p9mode(v9ses, perm); @@ -350,7 +351,7 @@ v9fs_create(struct inode *dir, if (result < 0) { dprintk(DEBUG_ERROR, "clone error: %s\n", FCALL_ERROR(fcall)); v9fs_put_idpool(newfid, &v9ses->fidpool); - newfid = 0; + newfid = -1; goto CleanUpFid; } @@ -369,20 +370,39 @@ v9fs_create(struct inode *dir, qid = fcall->params.rcreate.qid; kfree(fcall); - fid = v9fs_fid_create(file_dentry); + fid = v9fs_fid_create(file_dentry, v9ses, newfid, 1); + dprintk(DEBUG_VFS, "fid %p %d\n", fid, fid->fidcreate); if (!fid) { result = -ENOMEM; goto CleanUpFid; } - fid->fid = newfid; - fid->fidopen = 0; - fid->fidcreate = 1; fid->qid = qid; fid->iounit = iounit; - fid->rdir_pos = 0; - fid->rdir_fcall = NULL; - fid->v9ses = v9ses; + + /* walk to the newly created file and put the fid in the dentry */ + wfidno = v9fs_get_idpool(&v9ses->fidpool); + if (newfid < 0) { + eprintk(KERN_WARNING, "no free fids available\n"); + return -ENOSPC; + } + + result = v9fs_t_walk(v9ses, dirfidnum, wfidno, + (char *) file_dentry->d_name.name, NULL); + if (result < 0) { + dprintk(DEBUG_ERROR, "clone error: %s\n", FCALL_ERROR(fcall)); + v9fs_put_idpool(wfidno, &v9ses->fidpool); + wfidno = -1; + goto CleanUpFid; + } + + if (!v9fs_fid_create(file_dentry, v9ses, wfidno, 0)) { + if (!v9fs_t_clunk(v9ses, newfid, &fcall)) { + v9fs_put_idpool(wfidno, &v9ses->fidpool); + } + + goto CleanUpFid; + } if ((perm & V9FS_DMSYMLINK) || (perm & V9FS_DMLINK) || (perm & V9FS_DMNAMEDPIPE) || (perm & V9FS_DMSOCKET) || @@ -410,11 +430,11 @@ v9fs_create(struct inode *dir, d_instantiate(file_dentry, file_inode); if (perm & V9FS_DMDIR) { - if (v9fs_t_clunk(v9ses, newfid, &fcall)) + if (!v9fs_t_clunk(v9ses, newfid, &fcall)) + v9fs_put_idpool(newfid, &v9ses->fidpool); + else dprintk(DEBUG_ERROR, "clunk for mkdir failed: %s\n", FCALL_ERROR(fcall)); - - v9fs_put_idpool(newfid, &v9ses->fidpool); kfree(fcall); fid->fidopen = 0; fid->fidcreate = 0; @@ -426,12 +446,22 @@ v9fs_create(struct inode *dir, CleanUpFid: kfree(fcall); - if (newfid) { - if (v9fs_t_clunk(v9ses, newfid, &fcall)) + if (newfid >= 0) { + if (!v9fs_t_clunk(v9ses, newfid, &fcall)) + v9fs_put_idpool(newfid, &v9ses->fidpool); + else + dprintk(DEBUG_ERROR, "clunk failed: %s\n", + FCALL_ERROR(fcall)); + + kfree(fcall); + } + if (wfidno >= 0) { + if (!v9fs_t_clunk(v9ses, wfidno, &fcall)) + v9fs_put_idpool(wfidno, &v9ses->fidpool); + else dprintk(DEBUG_ERROR, "clunk failed: %s\n", FCALL_ERROR(fcall)); - v9fs_put_idpool(newfid, &v9ses->fidpool); kfree(fcall); } return result; @@ -461,7 +491,7 @@ static int v9fs_remove(struct inode *dir, struct dentry *file, int rmdir) file_inode = file->d_inode; sb = file_inode->i_sb; v9ses = v9fs_inode2v9ses(file_inode); - v9fid = v9fs_fid_lookup(file, FID_OP); + v9fid = v9fs_fid_lookup(file); if (!v9fid) { dprintk(DEBUG_ERROR, @@ -545,7 +575,7 @@ static struct dentry *v9fs_vfs_lookup(struct inode *dir, struct dentry *dentry, sb = dir->i_sb; v9ses = v9fs_inode2v9ses(dir); - dirfid = v9fs_fid_lookup(dentry->d_parent, FID_WALK); + dirfid = v9fs_fid_lookup(dentry->d_parent); if (!dirfid) { dprintk(DEBUG_ERROR, "no dirfid\n"); @@ -573,7 +603,7 @@ static struct dentry *v9fs_vfs_lookup(struct inode *dir, struct dentry *dentry, v9fs_put_idpool(newfid, &v9ses->fidpool); if (result == -ENOENT) { d_add(dentry, NULL); - dprintk(DEBUG_ERROR, + dprintk(DEBUG_VFS, "Return negative dentry %p count %d\n", dentry, atomic_read(&dentry->d_count)); return NULL; @@ -601,16 +631,13 @@ static struct dentry *v9fs_vfs_lookup(struct inode *dir, struct dentry *dentry, inode->i_ino = v9fs_qid2ino(&fcall->params.rstat.stat->qid); - fid = v9fs_fid_create(dentry); + fid = v9fs_fid_create(dentry, v9ses, newfid, 0); if (fid == NULL) { dprintk(DEBUG_ERROR, "couldn't insert\n"); result = -ENOMEM; goto FreeFcall; } - fid->fid = newfid; - fid->fidopen = 0; - fid->v9ses = v9ses; fid->qid = fcall->params.rstat.stat->qid; dentry->d_op = &v9fs_dentry_operations; @@ -665,11 +692,11 @@ v9fs_vfs_rename(struct inode *old_dir, struct dentry *old_dentry, { struct inode *old_inode = old_dentry->d_inode; struct v9fs_session_info *v9ses = v9fs_inode2v9ses(old_inode); - struct v9fs_fid *oldfid = v9fs_fid_lookup(old_dentry, FID_WALK); + struct v9fs_fid *oldfid = v9fs_fid_lookup(old_dentry); struct v9fs_fid *olddirfid = - v9fs_fid_lookup(old_dentry->d_parent, FID_WALK); + v9fs_fid_lookup(old_dentry->d_parent); struct v9fs_fid *newdirfid = - v9fs_fid_lookup(new_dentry->d_parent, FID_WALK); + v9fs_fid_lookup(new_dentry->d_parent); struct v9fs_stat *mistat = kmalloc(v9ses->maxdata, GFP_KERNEL); struct v9fs_fcall *fcall = NULL; int fid = -1; @@ -744,7 +771,7 @@ v9fs_vfs_getattr(struct vfsmount *mnt, struct dentry *dentry, { struct v9fs_fcall *fcall = NULL; struct v9fs_session_info *v9ses = v9fs_inode2v9ses(dentry->d_inode); - struct v9fs_fid *fid = v9fs_fid_lookup(dentry, FID_OP); + struct v9fs_fid *fid = v9fs_fid_lookup(dentry); int err = -EPERM; dprintk(DEBUG_VFS, "dentry: %p\n", dentry); @@ -778,7 +805,7 @@ v9fs_vfs_getattr(struct vfsmount *mnt, struct dentry *dentry, static int v9fs_vfs_setattr(struct dentry *dentry, struct iattr *iattr) { struct v9fs_session_info *v9ses = v9fs_inode2v9ses(dentry->d_inode); - struct v9fs_fid *fid = v9fs_fid_lookup(dentry, FID_OP); + struct v9fs_fid *fid = v9fs_fid_lookup(dentry); struct v9fs_fcall *fcall = NULL; struct v9fs_stat *mistat = kmalloc(v9ses->maxdata, GFP_KERNEL); int res = -EPERM; @@ -960,7 +987,7 @@ v9fs_vfs_symlink(struct inode *dir, struct dentry *dentry, const char *symname) if (retval != 0) goto FreeFcall; - newfid = v9fs_fid_lookup(dentry, FID_OP); + newfid = v9fs_fid_lookup(dentry); /* issue a twstat */ v9fs_blank_mistat(v9ses, mistat); @@ -1004,7 +1031,7 @@ static int v9fs_readlink(struct dentry *dentry, char *buffer, int buflen) struct v9fs_fcall *fcall = NULL; struct v9fs_session_info *v9ses = v9fs_inode2v9ses(dentry->d_inode); - struct v9fs_fid *fid = v9fs_fid_lookup(dentry, FID_OP); + struct v9fs_fid *fid = v9fs_fid_lookup(dentry); if (!fid) { dprintk(DEBUG_ERROR, "could not resolve fid from dentry\n"); @@ -1148,7 +1175,7 @@ v9fs_vfs_link(struct dentry *old_dentry, struct inode *dir, struct v9fs_session_info *v9ses = v9fs_inode2v9ses(dir); struct v9fs_fcall *fcall = NULL; struct v9fs_stat *mistat = kmalloc(v9ses->maxdata, GFP_KERNEL); - struct v9fs_fid *oldfid = v9fs_fid_lookup(old_dentry, FID_OP); + struct v9fs_fid *oldfid = v9fs_fid_lookup(old_dentry); struct v9fs_fid *newfid = NULL; char *symname = __getname(); @@ -1168,7 +1195,7 @@ v9fs_vfs_link(struct dentry *old_dentry, struct inode *dir, if (retval != 0) goto FreeMem; - newfid = v9fs_fid_lookup(dentry, FID_OP); + newfid = v9fs_fid_lookup(dentry); if (!newfid) { dprintk(DEBUG_ERROR, "couldn't resolve fid from dentry\n"); goto FreeMem; @@ -1246,7 +1273,7 @@ v9fs_vfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t rdev) if (retval != 0) goto FreeMem; - newfid = v9fs_fid_lookup(dentry, FID_OP); + newfid = v9fs_fid_lookup(dentry); if (!newfid) { dprintk(DEBUG_ERROR, "coudn't resove fid from dentry\n"); retval = -EINVAL; diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c index 1e2b2b54d300..0957f4da91d4 100644 --- a/fs/9p/vfs_super.c +++ b/fs/9p/vfs_super.c @@ -129,8 +129,7 @@ static struct super_block *v9fs_get_sb(struct file_system_type if ((newfid = v9fs_session_init(v9ses, dev_name, data)) < 0) { dprintk(DEBUG_ERROR, "problem initiating session\n"); - kfree(v9ses); - return ERR_PTR(newfid); + return newfid; } sb = sget(fs_type, NULL, v9fs_set_super, v9ses); @@ -155,23 +154,19 @@ static struct super_block *v9fs_get_sb(struct file_system_type sb->s_root = root; - /* Setup the Root Inode */ - root_fid = v9fs_fid_create(root); - if (root_fid == NULL) { - retval = -ENOMEM; - goto put_back_sb; - } - - root_fid->fidopen = 0; - root_fid->v9ses = v9ses; - stat_result = v9fs_t_stat(v9ses, newfid, &fcall); if (stat_result < 0) { dprintk(DEBUG_ERROR, "stat error\n"); v9fs_t_clunk(v9ses, newfid, NULL); v9fs_put_idpool(newfid, &v9ses->fidpool); } else { - root_fid->fid = newfid; + /* Setup the Root Inode */ + root_fid = v9fs_fid_create(root, v9ses, newfid, 0); + if (root_fid == NULL) { + retval = -ENOMEM; + goto put_back_sb; + } + root_fid->qid = fcall->params.rstat.stat->qid; root->d_inode->i_ino = v9fs_qid2ino(&fcall->params.rstat.stat->qid); From 88bdcc5d5e9a7ea280f99262f48b70aba9d949bf Mon Sep 17 00:00:00 2001 From: Jon Burgess Date: Tue, 27 Sep 2005 21:45:26 -0700 Subject: [PATCH 197/352] [PATCH] dvb: fix NULL pointer dereference when loading the budget-av module Ralph Metzler wrote: > AFAIR, there is a bug in tda10021.c in tda10021_readreg() which > references state->frontend.dvb->num > This is fatal if the frontend is not at the probed address and thus > not yet registered (no dvb entry set yet -> NULL pointer ...). The attached patch should get rid of the oops. Signed-off-by: Jon Burgess Cc: Johannes Stezenbach Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/media/dvb/frontends/tda10021.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/media/dvb/frontends/tda10021.c b/drivers/media/dvb/frontends/tda10021.c index 87d5f4d8790f..eaf130e666d8 100644 --- a/drivers/media/dvb/frontends/tda10021.c +++ b/drivers/media/dvb/frontends/tda10021.c @@ -100,8 +100,8 @@ static u8 tda10021_readreg (struct tda10021_state* state, u8 reg) ret = i2c_transfer (state->i2c, msg, 2); if (ret != 2) - printk("DVB: TDA10021(%d): %s: readreg error (ret == %i)\n", - state->frontend.dvb->num, __FUNCTION__, ret); + printk("DVB: TDA10021: %s: readreg error (ret == %i)\n", + __FUNCTION__, ret); return b1[0]; } From 249a6771afcdfaca0ac178f63343aff2c4dc2853 Mon Sep 17 00:00:00 2001 From: Peter Osterlund Date: Tue, 27 Sep 2005 21:45:30 -0700 Subject: [PATCH 198/352] [PATCH] pktcdvd: MAINTAINERS record Add a MAINTAINERS entry for the pktcdvd driver. Signed-off-by: Peter Osterlund Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- MAINTAINERS | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index 7d1dd5bad39a..1a0d0c6e7d10 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1906,6 +1906,13 @@ M: joern@wh.fh-wedel.de L: linux-mtd@lists.infradead.org S: Maintained +PKTCDVD DRIVER +P: Peter Osterlund +M: petero2@telia.com +L: linux-kernel@vger.kernel.org +L: packet-writing@suse.com +S: Maintained + POSIX CLOCKS and TIMERS P: George Anzinger M: george@mvista.com From 254b54771cc4c00002f796be65d2885191dca9dc Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Tue, 27 Sep 2005 21:45:31 -0700 Subject: [PATCH 199/352] [PATCH] swsusp: remove wrong code from data_free The following patch removes some wrong code from the data_free() function in swsusp. This function could only be called if there's an error while writing the suspend image to swap, so it is not triggered easily. However, if triggered, it would probably corrupt some memory. Signed-off-by: Rafael J. Wysocki Acked-by: Pavel Machek Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/power/swsusp.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/kernel/power/swsusp.c b/kernel/power/swsusp.c index 1cc9ff25e479..8aef1b49150f 100644 --- a/kernel/power/swsusp.c +++ b/kernel/power/swsusp.c @@ -402,15 +402,14 @@ static int write_page(unsigned long addr, swp_entry_t * loc) static void data_free(void) { swp_entry_t entry; - int i; + struct pbe * p; - for (i = 0; i < nr_copy_pages; i++) { - entry = (pagedir_nosave + i)->swap_address; + for_each_pbe(p, pagedir_nosave) { + entry = p->swap_address; if (entry.val) swap_free(entry); else break; - (pagedir_nosave + i)->swap_address = (swp_entry_t){0}; } } From f2d613799af915da1fd78463ba8ec5086a0d6f92 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Tue, 27 Sep 2005 21:45:32 -0700 Subject: [PATCH 200/352] [PATCH] swsusp: prevent possible memory leak Prevent swsusp from leaking some memory in case of an error in read_pagedir(). It also prevents the BUG_ON() from triggering if there's an error while reading swap. Signed-off-by: Rafael J. Wysocki Acked-by: Pavel Machek Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/power/swsusp.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/kernel/power/swsusp.c b/kernel/power/swsusp.c index 8aef1b49150f..0dfb24948907 100644 --- a/kernel/power/swsusp.c +++ b/kernel/power/swsusp.c @@ -1437,9 +1437,9 @@ static int read_pagedir(struct pbe *pblist) } if (error) - free_page((unsigned long)pblist); - - BUG_ON(i != swsusp_info.pagedir_pages); + free_pagedir(pblist); + else + BUG_ON(i != swsusp_info.pagedir_pages); return error; } From e3306dd5f7eb2e699f36a4a313fca4b48b18d5e1 Mon Sep 17 00:00:00 2001 From: Davide Libenzi Date: Tue, 27 Sep 2005 21:45:33 -0700 Subject: [PATCH 201/352] [PATCH] epoll: handle timeout overflow Handle the timeout upper boundary for epoll. Signed-off-by: Davide Libenzi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/eventpoll.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/fs/eventpoll.c b/fs/eventpoll.c index 403b90a1213d..4284cd31eba6 100644 --- a/fs/eventpoll.c +++ b/fs/eventpoll.c @@ -101,6 +101,10 @@ /* Maximum number of poll wake up nests we are allowing */ #define EP_MAX_POLLWAKE_NESTS 4 +/* Maximum msec timeout value storeable in a long int */ +#define EP_MAX_MSTIMEO min(1000ULL * MAX_SCHEDULE_TIMEOUT / HZ, (LONG_MAX - 999ULL) / HZ) + + struct epoll_filefd { struct file *file; int fd; @@ -1506,8 +1510,8 @@ static int ep_poll(struct eventpoll *ep, struct epoll_event __user *events, * and the overflow condition. The passed timeout is in milliseconds, * that why (t * HZ) / 1000. */ - jtimeout = timeout == -1 || timeout > (MAX_SCHEDULE_TIMEOUT - 1000) / HZ ? - MAX_SCHEDULE_TIMEOUT: (timeout * HZ + 999) / 1000; + jtimeout = (timeout < 0 || timeout >= EP_MAX_MSTIMEO) ? + MAX_SCHEDULE_TIMEOUT : (timeout * HZ + 999) / 1000; retry: write_lock_irqsave(&ep->lock, flags); From f36462f078403c1859a7e58177b28e01b3a179e4 Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Tue, 27 Sep 2005 21:45:34 -0700 Subject: [PATCH 202/352] [PATCH] Ignore trailing whitespace on kernel parameters correctly Dave Jones says: ... if the modprobe.conf has trailing whitespace, modules fail to load with the following helpful message.. snd_intel8x0: Unknown parameter `' Previous version truncated last argument. Signed-off-by: Rusty Russell Cc: Dave Jones Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/params.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/kernel/params.c b/kernel/params.c index fbf173215fd2..1a8614bac5d5 100644 --- a/kernel/params.c +++ b/kernel/params.c @@ -80,8 +80,6 @@ static char *next_arg(char *args, char **param, char **val) int in_quote = 0, quoted = 0; char *next; - /* Chew any extra spaces */ - while (*args == ' ') args++; if (*args == '"') { args++; in_quote = 1; @@ -121,6 +119,10 @@ static char *next_arg(char *args, char **param, char **val) next = args + i + 1; } else next = args + i; + + /* Chew up trailing spaces. */ + while (*next == ' ') + next++; return next; } @@ -135,6 +137,10 @@ int parse_args(const char *name, DEBUGP("Parsing ARGS: %s\n", args); + /* Chew leading spaces */ + while (*args == ' ') + args++; + while (*args) { int ret; From f4208b9a9538baabad197276076bc1d4f52d42b9 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Tue, 27 Sep 2005 21:45:35 -0700 Subject: [PATCH 203/352] [PATCH] ppc: fix stupid thinko in oprofile fix I did something stupid in my oprofile fix, here's the obvious fix: Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ppc/kernel/perfmon.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/ppc/kernel/perfmon.c b/arch/ppc/kernel/perfmon.c index 04c18788e85f..22df9a596a0f 100644 --- a/arch/ppc/kernel/perfmon.c +++ b/arch/ppc/kernel/perfmon.c @@ -45,9 +45,8 @@ static void dummy_perf(struct pt_regs *regs) mtpmr(PMRN_PMGC0, pmgc0); } -#elif CONFIG_6xx +#elif defined(CONFIG_6xx) /* Ensure exceptions are disabled */ - static void dummy_perf(struct pt_regs *regs) { unsigned int mmcr0 = mfspr(SPRN_MMCR0); From a9d014afc3609e3094fd06176380ed057edd4a1b Mon Sep 17 00:00:00 2001 From: Corey Minyard Date: Tue, 27 Sep 2005 21:45:35 -0700 Subject: [PATCH 204/352] [PATCH] Add IPMI poweroff control to sysfs Put the IPMI poweroff_powercycle parameter into sysfs. This field is dynamically settable and is valuable to have in sysfs. Signed-off-by: Corey Minyard Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/ipmi/ipmi_poweroff.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/char/ipmi/ipmi_poweroff.c b/drivers/char/ipmi/ipmi_poweroff.c index e82a96ba396b..f66947722e12 100644 --- a/drivers/char/ipmi/ipmi_poweroff.c +++ b/drivers/char/ipmi/ipmi_poweroff.c @@ -55,7 +55,7 @@ extern void (*pm_power_off)(void); static int poweroff_powercycle; /* parameter definition to allow user to flag power cycle */ -module_param(poweroff_powercycle, int, 0); +module_param(poweroff_powercycle, int, 0644); MODULE_PARM_DESC(poweroff_powercycles, " Set to non-zero to enable power cycle instead of power down. Power cycle is contingent on hardware support, otherwise it defaults back to power down."); /* Stuff from the get device id command. */ From 6c132b5fe6579ed4b4892c02fe6c05f7e3afc579 Mon Sep 17 00:00:00 2001 From: john stultz Date: Tue, 27 Sep 2005 21:45:36 -0700 Subject: [PATCH 205/352] [PATCH] x86-64: Fix bad assumption that dualcore cpus have synced TSCs This should resolve the issue seen in bugme bug #5105, where it is assumed that dualcore x86_64 systems have synced TSCs. This is not the case, and alternate timesources should be used instead. For more details, see: http://bugzilla.kernel.org/show_bug.cgi?id=5105 Andi's earlier concerns that the TSCs should be synced on dualcore systems have been resolved by confirmation from AMD folks that they can be unsynced. Acked-by: Andi Kleen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/x86_64/kernel/time.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/arch/x86_64/kernel/time.c b/arch/x86_64/kernel/time.c index 2373cb8b8625..703acde2a1a5 100644 --- a/arch/x86_64/kernel/time.c +++ b/arch/x86_64/kernel/time.c @@ -959,9 +959,6 @@ static __init int unsynchronized_tsc(void) are handled in the OEM check above. */ if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL) return 0; - /* All in a single socket - should be synchronized */ - if (cpus_weight(cpu_core_map[0]) == num_online_cpus()) - return 0; #endif /* Assume multi socket systems are not synchronized */ return num_online_cpus() > 1; From ed90fb4a19956cece996eb1d26534f592918730e Mon Sep 17 00:00:00 2001 From: Paul Jackson Date: Tue, 27 Sep 2005 21:45:37 -0700 Subject: [PATCH 206/352] [PATCH] cpuset maintainers Specify the cpuset maintainers. Signed-off-by: Paul Jackson Signed-off-by: Simon Derr Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- MAINTAINERS | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index 1a0d0c6e7d10..c1bc9a86a99d 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -604,6 +604,15 @@ P: H. Peter Anvin M: hpa@zytor.com S: Maintained +CPUSETS +P: Paul Jackson +P: Simon Derr +M: pj@sgi.com +M: simon.derr@bull.net +L: linux-kernel@vger.kernel.org +W: http://www.bullopensource.org/cpuset/ +S: Supported + CRAMFS FILESYSTEM W: http://sourceforge.net/projects/cramfs/ S: Orphan From b3ca80935100af47f226be439cb266378dab7bf7 Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Tue, 27 Sep 2005 21:45:38 -0700 Subject: [PATCH 207/352] [PATCH] ppc64: Add missing barrier() in kexec code Mikey and I were testing kexec and hit a lockup. It turns out gcc 4.0 optimises the kexec_prepare_cpus loop so we avoid reloading paca.hw_cpu_id. A gcc barrier() fixes the problem. Signed-off-by: Anton Blanchard Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ppc64/kernel/machine_kexec.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/ppc64/kernel/machine_kexec.c b/arch/ppc64/kernel/machine_kexec.c index 4775f12a013c..bf7cc4f8210f 100644 --- a/arch/ppc64/kernel/machine_kexec.c +++ b/arch/ppc64/kernel/machine_kexec.c @@ -205,6 +205,7 @@ static void kexec_prepare_cpus(void) continue; while (paca[i].hw_cpu_id != -1) { + barrier(); if (!cpu_possible(i)) { printk("kexec: cpu %d hw_cpu_id %d is not" " possible, ignoring\n", From f65a4d10c8a4eb9f919cf416e5dcd720b7d20f50 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Tue, 27 Sep 2005 21:45:41 -0700 Subject: [PATCH 208/352] [PATCH] orinoco: Fix flood of kernel log with stupid WE warnings Latest wireless extensions moved a field from netdev -> wireless_handlers. The WE core will now printk a warning on every call to get_wireless_stats() on a driver that still uses the old field. This patch fixes orinoco. Signed-off-by: Benjamin Herrenschmidt Cc: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/net/wireless/orinoco.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/orinoco.c b/drivers/net/wireless/orinoco.c index 8de49fe57233..6deb7cc810cc 100644 --- a/drivers/net/wireless/orinoco.c +++ b/drivers/net/wireless/orinoco.c @@ -2458,7 +2458,6 @@ struct net_device *alloc_orinocodev(int sizeof_card, dev->watchdog_timeo = HZ; /* 1 second timeout */ dev->get_stats = orinoco_get_stats; dev->ethtool_ops = &orinoco_ethtool_ops; - dev->get_wireless_stats = orinoco_get_wireless_stats; dev->wireless_handlers = (struct iw_handler_def *)&orinoco_handler_def; dev->change_mtu = orinoco_change_mtu; dev->set_multicast_list = orinoco_set_multicast_list; @@ -4399,6 +4398,7 @@ static const struct iw_handler_def orinoco_handler_def = { .standard = orinoco_handler, .private = orinoco_private_handler, .private_args = orinoco_privtab, + .get_wireless_stats = orinoco_get_wireless_stats, }; static void orinoco_get_drvinfo(struct net_device *dev, From 0f7347c20c410c300be0db4c132945fd02e54110 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Tue, 27 Sep 2005 21:45:43 -0700 Subject: [PATCH 209/352] [PATCH] swsusp: avoid problems if there are too many pages to save The following patch makes swsusp avoid problems during resume if there are too many pages to save on suspend. It adds a constant that allows us to verify if we are going to save too many pages and implements the check (this is done as early as we can tell that the check will trigger, which is in swsusp_alloc()). Signed-off-by: Rafael J. Wysocki Acked-by: Pavel Machek Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/power/power.h | 5 ++++- kernel/power/swsusp.c | 4 ++++ 2 files changed, 8 insertions(+), 1 deletion(-) diff --git a/kernel/power/power.h b/kernel/power/power.h index 9c9167d910dd..6748de23e83c 100644 --- a/kernel/power/power.h +++ b/kernel/power/power.h @@ -9,6 +9,9 @@ #define SUSPEND_CONSOLE (MAX_NR_CONSOLES-1) #endif +#define MAX_PBES ((PAGE_SIZE - sizeof(struct new_utsname) \ + - 4 - 3*sizeof(unsigned long) - sizeof(int) \ + - sizeof(void *)) / sizeof(swp_entry_t)) struct swsusp_info { struct new_utsname uts; @@ -18,7 +21,7 @@ struct swsusp_info { unsigned long image_pages; unsigned long pagedir_pages; suspend_pagedir_t * suspend_pagedir; - swp_entry_t pagedir[768]; + swp_entry_t pagedir[MAX_PBES]; } __attribute__((aligned(PAGE_SIZE))); diff --git a/kernel/power/swsusp.c b/kernel/power/swsusp.c index 0dfb24948907..acf79ac1cb6d 100644 --- a/kernel/power/swsusp.c +++ b/kernel/power/swsusp.c @@ -931,6 +931,10 @@ static int swsusp_alloc(void) if (!enough_swap()) return -ENOSPC; + if (MAX_PBES < nr_copy_pages / PBES_PER_PAGE + + !!(nr_copy_pages % PBES_PER_PAGE)) + return -ENOSPC; + if (!(pagedir_save = alloc_pagedir(nr_copy_pages))) { printk(KERN_ERR "suspend: Allocating pagedir failed.\n"); return -ENOMEM; From 269fd2a6f84828fd96218d164dace8c413fa5c03 Mon Sep 17 00:00:00 2001 From: "goggin, edward" Date: Tue, 27 Sep 2005 21:45:44 -0700 Subject: [PATCH 210/352] [PATCH] device-mapper: Trigger an event when a table is deleted If anything is waiting on a device's table when the device is removed, we must first wake it up so it will release its reference. Otherwise the table's reference count will not drop to zero and the table will not get removed. Signed-Off-By: Alasdair G Kergon Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/md/dm-ioctl.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c index 200a0688f717..54ec737195e0 100644 --- a/drivers/md/dm-ioctl.c +++ b/drivers/md/dm-ioctl.c @@ -230,11 +230,20 @@ static int dm_hash_insert(const char *name, const char *uuid, struct mapped_devi static void __hash_remove(struct hash_cell *hc) { + struct dm_table *table; + /* remove from the dev hash */ list_del(&hc->uuid_list); list_del(&hc->name_list); unregister_with_devfs(hc); dm_set_mdptr(hc->md, NULL); + + table = dm_get_table(hc->md); + if (table) { + dm_table_event(table); + dm_table_put(table); + } + dm_put(hc->md); if (hc->new_map) dm_table_put(hc->new_map); From 485ef69edefd7fc7f351c94d0d77b3ed8a242f7b Mon Sep 17 00:00:00 2001 From: Alasdair G Kergon Date: Tue, 27 Sep 2005 21:45:45 -0700 Subject: [PATCH 211/352] [PATCH] device-mapper: Fix queue_if_no_path initialisation When creating a multipath device, if the queue_if_no_path parameter is specified it gets ignored. While the queue_if_no_path variable is correctly set to 1, the saved_queue_if_no_path gets set to 0. When the device is subsequently made live (resumed), the saved value (0) always overwrites the live value (1) so the option *always* gets turned off. The fix adds a parameter to the queue_if_no_path() function to indicate whether the previous value should be preserved or not - if not, as when the device is being set up, the saved value is set to the new value (1). Signed-Off-By: Alasdair G Kergon Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/md/dm-mpath.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c index 785806bdb248..f9b7b32d5d5c 100644 --- a/drivers/md/dm-mpath.c +++ b/drivers/md/dm-mpath.c @@ -329,13 +329,17 @@ static int map_io(struct multipath *m, struct bio *bio, struct mpath_io *mpio, /* * If we run out of usable paths, should we queue I/O or error it? */ -static int queue_if_no_path(struct multipath *m, unsigned queue_if_no_path) +static int queue_if_no_path(struct multipath *m, unsigned queue_if_no_path, + unsigned save_old_value) { unsigned long flags; spin_lock_irqsave(&m->lock, flags); - m->saved_queue_if_no_path = m->queue_if_no_path; + if (save_old_value) + m->saved_queue_if_no_path = m->queue_if_no_path; + else + m->saved_queue_if_no_path = queue_if_no_path; m->queue_if_no_path = queue_if_no_path; if (!m->queue_if_no_path && m->queue_size) queue_work(kmultipathd, &m->process_queued_ios); @@ -677,7 +681,7 @@ static int parse_features(struct arg_set *as, struct multipath *m, return 0; if (!strnicmp(shift(as), MESG_STR("queue_if_no_path"))) - return queue_if_no_path(m, 1); + return queue_if_no_path(m, 1, 0); else { ti->error = "Unrecognised multipath feature request"; return -EINVAL; @@ -1077,7 +1081,7 @@ static void multipath_presuspend(struct dm_target *ti) { struct multipath *m = (struct multipath *) ti->private; - queue_if_no_path(m, 0); + queue_if_no_path(m, 0, 1); } /* @@ -1222,9 +1226,9 @@ static int multipath_message(struct dm_target *ti, unsigned argc, char **argv) if (argc == 1) { if (!strnicmp(argv[0], MESG_STR("queue_if_no_path"))) - return queue_if_no_path(m, 1); + return queue_if_no_path(m, 1, 0); else if (!strnicmp(argv[0], MESG_STR("fail_if_no_path"))) - return queue_if_no_path(m, 0); + return queue_if_no_path(m, 0, 0); } if (argc != 2) From 0f9578b70a9f112bfb541e1d5ab486a376e64503 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Tue, 27 Sep 2005 21:45:45 -0700 Subject: [PATCH 212/352] [PATCH] ppc64: More hugepage fixes My previous patch fixing invalidation of huge PTEs wasn't good enough, we still had an issue if a PTE invalidation batch contained both small and large pages. This patch fixes this by making sure the batch is flushed if the page size fed to it changes. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ppc64/mm/hash_native.c | 5 ++--- arch/ppc64/mm/tlb.c | 4 +++- include/asm-ppc64/tlbflush.h | 1 + 3 files changed, 6 insertions(+), 4 deletions(-) diff --git a/arch/ppc64/mm/hash_native.c b/arch/ppc64/mm/hash_native.c index eb1bbb5b6c16..bfd385b7713c 100644 --- a/arch/ppc64/mm/hash_native.c +++ b/arch/ppc64/mm/hash_native.c @@ -343,7 +343,7 @@ static void native_flush_hash_range(unsigned long context, hpte_t *hptep; unsigned long hpte_v; struct ppc64_tlb_batch *batch = &__get_cpu_var(ppc64_tlb_batch); - unsigned long large; + unsigned long large = batch->large; local_irq_save(flags); @@ -356,7 +356,6 @@ static void native_flush_hash_range(unsigned long context, va = (vsid << 28) | (batch->addr[i] & 0x0fffffff); batch->vaddr[j] = va; - large = pte_huge(batch->pte[i]); if (large) vpn = va >> HPAGE_SHIFT; else @@ -406,7 +405,7 @@ static void native_flush_hash_range(unsigned long context, asm volatile("ptesync":::"memory"); for (i = 0; i < j; i++) - __tlbie(batch->vaddr[i], 0); + __tlbie(batch->vaddr[i], large); asm volatile("eieio; tlbsync; ptesync":::"memory"); diff --git a/arch/ppc64/mm/tlb.c b/arch/ppc64/mm/tlb.c index d8a6593a13f0..21fbffb23a43 100644 --- a/arch/ppc64/mm/tlb.c +++ b/arch/ppc64/mm/tlb.c @@ -143,7 +143,8 @@ void hpte_update(struct mm_struct *mm, unsigned long addr, * up scanning and resetting referenced bits then our batch context * will change mid stream. */ - if (unlikely(i != 0 && context != batch->context)) { + if (i != 0 && (context != batch->context || + batch->large != pte_huge(pte))) { flush_tlb_pending(); i = 0; } @@ -151,6 +152,7 @@ void hpte_update(struct mm_struct *mm, unsigned long addr, if (i == 0) { batch->context = context; batch->mm = mm; + batch->large = pte_huge(pte); } batch->pte[i] = __pte(pte); batch->addr[i] = addr; diff --git a/include/asm-ppc64/tlbflush.h b/include/asm-ppc64/tlbflush.h index 45411a67e082..74271d7c1d16 100644 --- a/include/asm-ppc64/tlbflush.h +++ b/include/asm-ppc64/tlbflush.h @@ -25,6 +25,7 @@ struct ppc64_tlb_batch { pte_t pte[PPC64_TLB_BATCH_NR]; unsigned long addr[PPC64_TLB_BATCH_NR]; unsigned long vaddr[PPC64_TLB_BATCH_NR]; + unsigned int large; }; DECLARE_PER_CPU(struct ppc64_tlb_batch, ppc64_tlb_batch); From 5c382300876f2337f7b945c159ffcaf285f296ea Mon Sep 17 00:00:00 2001 From: Alok N Kataria Date: Tue, 27 Sep 2005 21:45:46 -0700 Subject: [PATCH 213/352] [PATCH] kmalloc_node IRQ safety fix In kmalloc_node we are checking if the allocation is for the same node when interrupts are "on". This may lead to an allocation on another node than intended. This patch just shifts the check for the current node in __cache_alloc_node when interrupts are disabled. Signed-off-by: Alok N Kataria Acked-by: Christoph Lameter Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/slab.c | 25 ++++++++++++++++++------- 1 file changed, 18 insertions(+), 7 deletions(-) diff --git a/mm/slab.c b/mm/slab.c index c9adfce00405..5cbbdfa6dd0e 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -2510,16 +2510,12 @@ cache_alloc_debugcheck_after(kmem_cache_t *cachep, #define cache_alloc_debugcheck_after(a,b,objp,d) (objp) #endif - -static inline void *__cache_alloc(kmem_cache_t *cachep, unsigned int __nocast flags) +static inline void *____cache_alloc(kmem_cache_t *cachep, unsigned int __nocast flags) { - unsigned long save_flags; void* objp; struct array_cache *ac; - cache_alloc_debugcheck_before(cachep, flags); - - local_irq_save(save_flags); + check_irq_off(); ac = ac_data(cachep); if (likely(ac->avail)) { STATS_INC_ALLOCHIT(cachep); @@ -2529,6 +2525,18 @@ static inline void *__cache_alloc(kmem_cache_t *cachep, unsigned int __nocast fl STATS_INC_ALLOCMISS(cachep); objp = cache_alloc_refill(cachep, flags); } + return objp; +} + +static inline void *__cache_alloc(kmem_cache_t *cachep, unsigned int __nocast flags) +{ + unsigned long save_flags; + void* objp; + + cache_alloc_debugcheck_before(cachep, flags); + + local_irq_save(save_flags); + objp = ____cache_alloc(cachep, flags); local_irq_restore(save_flags); objp = cache_alloc_debugcheck_after(cachep, flags, objp, __builtin_return_address(0)); @@ -2856,7 +2864,10 @@ void *kmem_cache_alloc_node(kmem_cache_t *cachep, unsigned int __nocast flags, i cache_alloc_debugcheck_before(cachep, flags); local_irq_save(save_flags); - ptr = __cache_alloc_node(cachep, flags, nodeid); + if (nodeid == numa_node_id()) + ptr = ____cache_alloc(cachep, flags); + else + ptr = __cache_alloc_node(cachep, flags, nodeid); local_irq_restore(save_flags); ptr = cache_alloc_debugcheck_after(cachep, flags, ptr, __builtin_return_address(0)); From 5134fc15b643dc36eb9aa77e4318b886844a9ac5 Mon Sep 17 00:00:00 2001 From: Paul Jackson Date: Wed, 28 Sep 2005 06:42:24 -0700 Subject: [PATCH 214/352] [PATCH] cpuset read past eof memory leak fix Don't leak a page of memory if user reads a cpuset file past eof. Signed-off-by: KUROSAWA Takahiro Signed-off-by: Paul Jackson Signed-off-by: Linus Torvalds --- kernel/cpuset.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/kernel/cpuset.c b/kernel/cpuset.c index 79866bc6b3a1..6a6e87b2f2fd 100644 --- a/kernel/cpuset.c +++ b/kernel/cpuset.c @@ -969,7 +969,7 @@ static ssize_t cpuset_common_file_read(struct file *file, char __user *buf, ssize_t retval = 0; char *s; char *start; - size_t n; + ssize_t n; if (!(page = (char *)__get_free_page(GFP_KERNEL))) return -ENOMEM; @@ -999,12 +999,13 @@ static ssize_t cpuset_common_file_read(struct file *file, char __user *buf, *s++ = '\n'; *s = '\0'; - /* Do nothing if *ppos is at the eof or beyond the eof. */ - if (s - page <= *ppos) - return 0; - start = page + *ppos; n = s - start; + + /* Do nothing if *ppos is at the eof or beyond the eof. */ + if (n <= 0) + goto out; + retval = n - copy_to_user(buf, start, min(n, nbytes)); *ppos += retval; out: From 664cceb0093b755739e56572b836a99104ee8a75 Mon Sep 17 00:00:00 2001 From: David Howells Date: Wed, 28 Sep 2005 17:03:15 +0100 Subject: [PATCH 215/352] [PATCH] Keys: Add possessor permissions to keys [try #3] The attached patch adds extra permission grants to keys for the possessor of a key in addition to the owner, group and other permissions bits. This makes SUID binaries easier to support without going as far as labelling keys and key targets using the LSM facilities. This patch adds a second "pointer type" to key structures (struct key_ref *) that can have the bottom bit of the address set to indicate the possession of a key. This is propagated through searches from the keyring to the discovered key. It has been made a separate type so that the compiler can spot attempts to dereference a potentially incorrect pointer. The "possession" attribute can't be attached to a key structure directly as it's not an intrinsic property of a key. Pointers to keys have been replaced with struct key_ref *'s wherever possession information needs to be passed through. This does assume that the bottom bit of the pointer will always be zero on return from kmem_cache_alloc(). The key reference type has been made into a typedef so that at least it can be located in the sources, even though it's basically a pointer to an undefined type. I've also renamed the accessor functions to be more useful, and all reference variables should now end in "_ref". Signed-Off-By: David Howells Signed-off-by: Linus Torvalds --- Documentation/keys.txt | 74 ++++++-- include/linux/key-ui.h | 28 ++- include/linux/key.h | 78 ++++++-- security/keys/internal.h | 26 +-- security/keys/key.c | 81 +++++---- security/keys/keyctl.c | 297 ++++++++++++++++--------------- security/keys/keyring.c | 86 +++++---- security/keys/proc.c | 2 +- security/keys/process_keys.c | 164 ++++++++++------- security/keys/request_key.c | 36 +++- security/keys/request_key_auth.c | 2 +- 11 files changed, 526 insertions(+), 348 deletions(-) diff --git a/Documentation/keys.txt b/Documentation/keys.txt index 0321ded4b9ae..b22e7c8d059a 100644 --- a/Documentation/keys.txt +++ b/Documentation/keys.txt @@ -195,8 +195,8 @@ KEY ACCESS PERMISSIONS ====================== Keys have an owner user ID, a group access ID, and a permissions mask. The mask -has up to eight bits each for user, group and other access. Only five of each -set of eight bits are defined. These permissions granted are: +has up to eight bits each for possessor, user, group and other access. Only +five of each set of eight bits are defined. These permissions granted are: (*) View @@ -241,16 +241,16 @@ about the status of the key service: type, description and permissions. The payload of the key is not available this way: - SERIAL FLAGS USAGE EXPY PERM UID GID TYPE DESCRIPTION: SUMMARY - 00000001 I----- 39 perm 1f0000 0 0 keyring _uid_ses.0: 1/4 - 00000002 I----- 2 perm 1f0000 0 0 keyring _uid.0: empty - 00000007 I----- 1 perm 1f0000 0 0 keyring _pid.1: empty - 0000018d I----- 1 perm 1f0000 0 0 keyring _pid.412: empty - 000004d2 I--Q-- 1 perm 1f0000 32 -1 keyring _uid.32: 1/4 - 000004d3 I--Q-- 3 perm 1f0000 32 -1 keyring _uid_ses.32: empty - 00000892 I--QU- 1 perm 1f0000 0 0 user metal:copper: 0 - 00000893 I--Q-N 1 35s 1f0000 0 0 user metal:silver: 0 - 00000894 I--Q-- 1 10h 1f0000 0 0 user metal:gold: 0 + SERIAL FLAGS USAGE EXPY PERM UID GID TYPE DESCRIPTION: SUMMARY + 00000001 I----- 39 perm 1f1f0000 0 0 keyring _uid_ses.0: 1/4 + 00000002 I----- 2 perm 1f1f0000 0 0 keyring _uid.0: empty + 00000007 I----- 1 perm 1f1f0000 0 0 keyring _pid.1: empty + 0000018d I----- 1 perm 1f1f0000 0 0 keyring _pid.412: empty + 000004d2 I--Q-- 1 perm 1f1f0000 32 -1 keyring _uid.32: 1/4 + 000004d3 I--Q-- 3 perm 1f1f0000 32 -1 keyring _uid_ses.32: empty + 00000892 I--QU- 1 perm 1f000000 0 0 user metal:copper: 0 + 00000893 I--Q-N 1 35s 1f1f0000 0 0 user metal:silver: 0 + 00000894 I--Q-- 1 10h 001f0000 0 0 user metal:gold: 0 The flags are: @@ -637,6 +637,34 @@ call, and the key released upon close. How to deal with conflicting keys due to two different users opening the same file is left to the filesystem author to solve. +Note that there are two different types of pointers to keys that may be +encountered: + + (*) struct key * + + This simply points to the key structure itself. Key structures will be at + least four-byte aligned. + + (*) key_ref_t + + This is equivalent to a struct key *, but the least significant bit is set + if the caller "possesses" the key. By "possession" it is meant that the + calling processes has a searchable link to the key from one of its + keyrings. There are three functions for dealing with these: + + key_ref_t make_key_ref(const struct key *key, + unsigned long possession); + + struct key *key_ref_to_ptr(const key_ref_t key_ref); + + unsigned long is_key_possessed(const key_ref_t key_ref); + + The first function constructs a key reference from a key pointer and + possession information (which must be 0 or 1 and not any other value). + + The second function retrieves the key pointer from a reference and the + third retrieves the possession flag. + When accessing a key's payload contents, certain precautions must be taken to prevent access vs modification races. See the section "Notes on accessing payload contents" for more information. @@ -665,7 +693,11 @@ payload contents" for more information. void key_put(struct key *key); - This can be called from interrupt context. If CONFIG_KEYS is not set then + Or: + + void key_ref_put(key_ref_t key_ref); + + These can be called from interrupt context. If CONFIG_KEYS is not set then the argument will not be parsed. @@ -689,13 +721,17 @@ payload contents" for more information. (*) If a keyring was found in the search, this can be further searched by: - struct key *keyring_search(struct key *keyring, - const struct key_type *type, - const char *description) + key_ref_t keyring_search(key_ref_t keyring_ref, + const struct key_type *type, + const char *description) This searches the keyring tree specified for a matching key. Error ENOKEY - is returned upon failure. If successful, the returned key will need to be - released. + is returned upon failure (use IS_ERR/PTR_ERR to determine). If successful, + the returned key will need to be released. + + The possession attribute from the keyring reference is used to control + access through the permissions mask and is propagated to the returned key + reference pointer if successful. (*) To check the validity of a key, this function can be called: @@ -732,7 +768,7 @@ More complex payload contents must be allocated and a pointer to them set in key->payload.data. One of the following ways must be selected to access the data: - (1) Unmodifyable key type. + (1) Unmodifiable key type. If the key type does not have a modify method, then the key's payload can be accessed without any form of locking, provided that it's known to be diff --git a/include/linux/key-ui.h b/include/linux/key-ui.h index cc326174a808..918c34a8347e 100644 --- a/include/linux/key-ui.h +++ b/include/linux/key-ui.h @@ -42,11 +42,14 @@ struct keyring_list { /* * check to see whether permission is granted to use a key in the desired way */ -static inline int key_permission(const struct key *key, key_perm_t perm) +static inline int key_permission(const key_ref_t key_ref, key_perm_t perm) { + struct key *key = key_ref_to_ptr(key_ref); key_perm_t kperm; - if (key->uid == current->fsuid) + if (is_key_possessed(key_ref)) + kperm = key->perm >> 24; + else if (key->uid == current->fsuid) kperm = key->perm >> 16; else if (key->gid != -1 && key->perm & KEY_GRP_ALL && @@ -65,11 +68,14 @@ static inline int key_permission(const struct key *key, key_perm_t perm) * check to see whether permission is granted to use a key in at least one of * the desired ways */ -static inline int key_any_permission(const struct key *key, key_perm_t perm) +static inline int key_any_permission(const key_ref_t key_ref, key_perm_t perm) { + struct key *key = key_ref_to_ptr(key_ref); key_perm_t kperm; - if (key->uid == current->fsuid) + if (is_key_possessed(key_ref)) + kperm = key->perm >> 24; + else if (key->uid == current->fsuid) kperm = key->perm >> 16; else if (key->gid != -1 && key->perm & KEY_GRP_ALL && @@ -94,13 +100,17 @@ static inline int key_task_groups_search(struct task_struct *tsk, gid_t gid) return ret; } -static inline int key_task_permission(const struct key *key, +static inline int key_task_permission(const key_ref_t key_ref, struct task_struct *context, key_perm_t perm) { + struct key *key = key_ref_to_ptr(key_ref); key_perm_t kperm; - if (key->uid == context->fsuid) { + if (is_key_possessed(key_ref)) { + kperm = key->perm >> 24; + } + else if (key->uid == context->fsuid) { kperm = key->perm >> 16; } else if (key->gid != -1 && @@ -121,9 +131,9 @@ static inline int key_task_permission(const struct key *key, } -extern struct key *lookup_user_key(struct task_struct *context, - key_serial_t id, int create, int partial, - key_perm_t perm); +extern key_ref_t lookup_user_key(struct task_struct *context, + key_serial_t id, int create, int partial, + key_perm_t perm); extern long join_session_keyring(const char *name); diff --git a/include/linux/key.h b/include/linux/key.h index 970bbd916cf4..f1efa016dbf3 100644 --- a/include/linux/key.h +++ b/include/linux/key.h @@ -35,11 +35,18 @@ struct key; #undef KEY_DEBUGGING -#define KEY_USR_VIEW 0x00010000 /* user can view a key's attributes */ -#define KEY_USR_READ 0x00020000 /* user can read key payload / view keyring */ -#define KEY_USR_WRITE 0x00040000 /* user can update key payload / add link to keyring */ -#define KEY_USR_SEARCH 0x00080000 /* user can find a key in search / search a keyring */ -#define KEY_USR_LINK 0x00100000 /* user can create a link to a key/keyring */ +#define KEY_POS_VIEW 0x01000000 /* possessor can view a key's attributes */ +#define KEY_POS_READ 0x02000000 /* possessor can read key payload / view keyring */ +#define KEY_POS_WRITE 0x04000000 /* possessor can update key payload / add link to keyring */ +#define KEY_POS_SEARCH 0x08000000 /* possessor can find a key in search / search a keyring */ +#define KEY_POS_LINK 0x10000000 /* possessor can create a link to a key/keyring */ +#define KEY_POS_ALL 0x1f000000 + +#define KEY_USR_VIEW 0x00010000 /* user permissions... */ +#define KEY_USR_READ 0x00020000 +#define KEY_USR_WRITE 0x00040000 +#define KEY_USR_SEARCH 0x00080000 +#define KEY_USR_LINK 0x00100000 #define KEY_USR_ALL 0x001f0000 #define KEY_GRP_VIEW 0x00000100 /* group permissions... */ @@ -65,6 +72,38 @@ struct key_owner; struct keyring_list; struct keyring_name; +/*****************************************************************************/ +/* + * key reference with possession attribute handling + * + * NOTE! key_ref_t is a typedef'd pointer to a type that is not actually + * defined. This is because we abuse the bottom bit of the reference to carry a + * flag to indicate whether the calling process possesses that key in one of + * its keyrings. + * + * the key_ref_t has been made a separate type so that the compiler can reject + * attempts to dereference it without proper conversion. + * + * the three functions are used to assemble and disassemble references + */ +typedef struct __key_reference_with_attributes *key_ref_t; + +static inline key_ref_t make_key_ref(const struct key *key, + unsigned long possession) +{ + return (key_ref_t) ((unsigned long) key | possession); +} + +static inline struct key *key_ref_to_ptr(const key_ref_t key_ref) +{ + return (struct key *) ((unsigned long) key_ref & ~1UL); +} + +static inline unsigned long is_key_possessed(const key_ref_t key_ref) +{ + return (unsigned long) key_ref & 1UL; +} + /*****************************************************************************/ /* * authentication token / access credential / keyring @@ -215,20 +254,25 @@ static inline struct key *key_get(struct key *key) return key; } +static inline void key_ref_put(key_ref_t key_ref) +{ + key_put(key_ref_to_ptr(key_ref)); +} + extern struct key *request_key(struct key_type *type, const char *description, const char *callout_info); extern int key_validate(struct key *key); -extern struct key *key_create_or_update(struct key *keyring, - const char *type, - const char *description, - const void *payload, - size_t plen, - int not_in_quota); +extern key_ref_t key_create_or_update(key_ref_t keyring, + const char *type, + const char *description, + const void *payload, + size_t plen, + int not_in_quota); -extern int key_update(struct key *key, +extern int key_update(key_ref_t key, const void *payload, size_t plen); @@ -243,9 +287,9 @@ extern struct key *keyring_alloc(const char *description, uid_t uid, gid_t gid, extern int keyring_clear(struct key *keyring); -extern struct key *keyring_search(struct key *keyring, - struct key_type *type, - const char *description); +extern key_ref_t keyring_search(key_ref_t keyring, + struct key_type *type, + const char *description); extern int keyring_add_key(struct key *keyring, struct key *key); @@ -285,6 +329,10 @@ extern void key_init(void); #define key_serial(k) 0 #define key_get(k) ({ NULL; }) #define key_put(k) do { } while(0) +#define key_ref_put(k) do { } while(0) +#define make_key_ref(k) ({ NULL; }) +#define key_ref_to_ptr(k) ({ NULL; }) +#define is_key_possessed(k) 0 #define alloc_uid_keyring(u) 0 #define switch_uid_keyring(u) do { } while(0) #define __install_session_keyring(t, k) ({ NULL; }) diff --git a/security/keys/internal.h b/security/keys/internal.h index 46c8602661c9..db99ed434f3a 100644 --- a/security/keys/internal.h +++ b/security/keys/internal.h @@ -71,26 +71,26 @@ extern void keyring_publish_name(struct key *keyring); extern int __key_link(struct key *keyring, struct key *key); -extern struct key *__keyring_search_one(struct key *keyring, - const struct key_type *type, - const char *description, - key_perm_t perm); +extern key_ref_t __keyring_search_one(key_ref_t keyring_ref, + const struct key_type *type, + const char *description, + key_perm_t perm); extern struct key *keyring_search_instkey(struct key *keyring, key_serial_t target_id); typedef int (*key_match_func_t)(const struct key *, const void *); -extern struct key *keyring_search_aux(struct key *keyring, - struct task_struct *tsk, - struct key_type *type, - const void *description, - key_match_func_t match); +extern key_ref_t keyring_search_aux(key_ref_t keyring_ref, + struct task_struct *tsk, + struct key_type *type, + const void *description, + key_match_func_t match); -extern struct key *search_process_keyrings(struct key_type *type, - const void *description, - key_match_func_t match, - struct task_struct *tsk); +extern key_ref_t search_process_keyrings(struct key_type *type, + const void *description, + key_match_func_t match, + struct task_struct *tsk); extern struct key *find_keyring_by_name(const char *name, key_serial_t bound); diff --git a/security/keys/key.c b/security/keys/key.c index fb89f9844465..2182be9e9309 100644 --- a/security/keys/key.c +++ b/security/keys/key.c @@ -693,14 +693,15 @@ void key_type_put(struct key_type *ktype) * - the key has an incremented refcount * - we need to put the key if we get an error */ -static inline struct key *__key_update(struct key *key, const void *payload, - size_t plen) +static inline key_ref_t __key_update(key_ref_t key_ref, + const void *payload, size_t plen) { + struct key *key = key_ref_to_ptr(key_ref); int ret; /* need write permission on the key to update it */ ret = -EACCES; - if (!key_permission(key, KEY_WRITE)) + if (!key_permission(key_ref, KEY_WRITE)) goto error; ret = -EEXIST; @@ -719,12 +720,12 @@ static inline struct key *__key_update(struct key *key, const void *payload, if (ret < 0) goto error; - out: - return key; +out: + return key_ref; - error: +error: key_put(key); - key = ERR_PTR(ret); + key_ref = ERR_PTR(ret); goto out; } /* end __key_update() */ @@ -734,52 +735,56 @@ static inline struct key *__key_update(struct key *key, const void *payload, * search the specified keyring for a key of the same description; if one is * found, update it, otherwise add a new one */ -struct key *key_create_or_update(struct key *keyring, - const char *type, - const char *description, - const void *payload, - size_t plen, - int not_in_quota) +key_ref_t key_create_or_update(key_ref_t keyring_ref, + const char *type, + const char *description, + const void *payload, + size_t plen, + int not_in_quota) { struct key_type *ktype; - struct key *key = NULL; + struct key *keyring, *key = NULL; key_perm_t perm; + key_ref_t key_ref; int ret; - key_check(keyring); - /* look up the key type to see if it's one of the registered kernel * types */ ktype = key_type_lookup(type); if (IS_ERR(ktype)) { - key = ERR_PTR(-ENODEV); + key_ref = ERR_PTR(-ENODEV); goto error; } - ret = -EINVAL; + key_ref = ERR_PTR(-EINVAL); if (!ktype->match || !ktype->instantiate) goto error_2; + keyring = key_ref_to_ptr(keyring_ref); + + key_check(keyring); + + down_write(&keyring->sem); + + /* if we're going to allocate a new key, we're going to have + * to modify the keyring */ + key_ref = ERR_PTR(-EACCES); + if (!key_permission(keyring_ref, KEY_WRITE)) + goto error_3; + /* search for an existing key of the same type and description in the * destination keyring */ - down_write(&keyring->sem); - - key = __keyring_search_one(keyring, ktype, description, 0); - if (!IS_ERR(key)) + key_ref = __keyring_search_one(keyring_ref, ktype, description, 0); + if (!IS_ERR(key_ref)) goto found_matching_key; - /* if we're going to allocate a new key, we're going to have to modify - * the keyring */ - ret = -EACCES; - if (!key_permission(keyring, KEY_WRITE)) - goto error_3; - /* decide on the permissions we want */ - perm = KEY_USR_VIEW | KEY_USR_SEARCH | KEY_USR_LINK; + perm = KEY_POS_VIEW | KEY_POS_SEARCH | KEY_POS_LINK; + perm |= KEY_USR_VIEW | KEY_USR_SEARCH | KEY_USR_LINK; if (ktype->read) - perm |= KEY_USR_READ; + perm |= KEY_POS_READ | KEY_USR_READ; if (ktype == &key_type_keyring || ktype->update) perm |= KEY_USR_WRITE; @@ -788,7 +793,7 @@ struct key *key_create_or_update(struct key *keyring, key = key_alloc(ktype, description, current->fsuid, current->fsgid, perm, not_in_quota); if (IS_ERR(key)) { - ret = PTR_ERR(key); + key_ref = ERR_PTR(PTR_ERR(key)); goto error_3; } @@ -796,15 +801,18 @@ struct key *key_create_or_update(struct key *keyring, ret = __key_instantiate_and_link(key, payload, plen, keyring, NULL); if (ret < 0) { key_put(key); - key = ERR_PTR(ret); + key_ref = ERR_PTR(ret); + goto error_3; } + key_ref = make_key_ref(key, is_key_possessed(keyring_ref)); + error_3: up_write(&keyring->sem); error_2: key_type_put(ktype); error: - return key; + return key_ref; found_matching_key: /* we found a matching key, so we're going to try to update it @@ -813,7 +821,7 @@ struct key *key_create_or_update(struct key *keyring, up_write(&keyring->sem); key_type_put(ktype); - key = __key_update(key, payload, plen); + key_ref = __key_update(key_ref, payload, plen); goto error; } /* end key_create_or_update() */ @@ -824,15 +832,16 @@ EXPORT_SYMBOL(key_create_or_update); /* * update a key */ -int key_update(struct key *key, const void *payload, size_t plen) +int key_update(key_ref_t key_ref, const void *payload, size_t plen) { + struct key *key = key_ref_to_ptr(key_ref); int ret; key_check(key); /* the key must be writable */ ret = -EACCES; - if (!key_permission(key, KEY_WRITE)) + if (!key_permission(key_ref, KEY_WRITE)) goto error; /* attempt to update it if supported */ diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c index a6516a64b297..4c670ee6acf9 100644 --- a/security/keys/keyctl.c +++ b/security/keys/keyctl.c @@ -34,7 +34,7 @@ asmlinkage long sys_add_key(const char __user *_type, size_t plen, key_serial_t ringid) { - struct key *keyring, *key; + key_ref_t keyring_ref, key_ref; char type[32], *description; void *payload; long dlen, ret; @@ -86,25 +86,25 @@ asmlinkage long sys_add_key(const char __user *_type, } /* find the target keyring (which must be writable) */ - keyring = lookup_user_key(NULL, ringid, 1, 0, KEY_WRITE); - if (IS_ERR(keyring)) { - ret = PTR_ERR(keyring); + keyring_ref = lookup_user_key(NULL, ringid, 1, 0, KEY_WRITE); + if (IS_ERR(keyring_ref)) { + ret = PTR_ERR(keyring_ref); goto error3; } /* create or update the requested key and add it to the target * keyring */ - key = key_create_or_update(keyring, type, description, - payload, plen, 0); - if (!IS_ERR(key)) { - ret = key->serial; - key_put(key); + key_ref = key_create_or_update(keyring_ref, type, description, + payload, plen, 0); + if (!IS_ERR(key_ref)) { + ret = key_ref_to_ptr(key_ref)->serial; + key_ref_put(key_ref); } else { - ret = PTR_ERR(key); + ret = PTR_ERR(key_ref); } - key_put(keyring); + key_ref_put(keyring_ref); error3: kfree(payload); error2: @@ -131,7 +131,8 @@ asmlinkage long sys_request_key(const char __user *_type, key_serial_t destringid) { struct key_type *ktype; - struct key *key, *dest; + struct key *key; + key_ref_t dest_ref; char type[32], *description, *callout_info; long dlen, ret; @@ -187,11 +188,11 @@ asmlinkage long sys_request_key(const char __user *_type, } /* get the destination keyring if specified */ - dest = NULL; + dest_ref = NULL; if (destringid) { - dest = lookup_user_key(NULL, destringid, 1, 0, KEY_WRITE); - if (IS_ERR(dest)) { - ret = PTR_ERR(dest); + dest_ref = lookup_user_key(NULL, destringid, 1, 0, KEY_WRITE); + if (IS_ERR(dest_ref)) { + ret = PTR_ERR(dest_ref); goto error3; } } @@ -204,7 +205,8 @@ asmlinkage long sys_request_key(const char __user *_type, } /* do the search */ - key = request_key_and_link(ktype, description, callout_info, dest); + key = request_key_and_link(ktype, description, callout_info, + key_ref_to_ptr(dest_ref)); if (IS_ERR(key)) { ret = PTR_ERR(key); goto error5; @@ -216,7 +218,7 @@ asmlinkage long sys_request_key(const char __user *_type, error5: key_type_put(ktype); error4: - key_put(dest); + key_ref_put(dest_ref); error3: kfree(callout_info); error2: @@ -234,17 +236,17 @@ asmlinkage long sys_request_key(const char __user *_type, */ long keyctl_get_keyring_ID(key_serial_t id, int create) { - struct key *key; + key_ref_t key_ref; long ret; - key = lookup_user_key(NULL, id, create, 0, KEY_SEARCH); - if (IS_ERR(key)) { - ret = PTR_ERR(key); + key_ref = lookup_user_key(NULL, id, create, 0, KEY_SEARCH); + if (IS_ERR(key_ref)) { + ret = PTR_ERR(key_ref); goto error; } - ret = key->serial; - key_put(key); + ret = key_ref_to_ptr(key_ref)->serial; + key_ref_put(key_ref); error: return ret; @@ -302,7 +304,7 @@ long keyctl_update_key(key_serial_t id, const void __user *_payload, size_t plen) { - struct key *key; + key_ref_t key_ref; void *payload; long ret; @@ -324,16 +326,16 @@ long keyctl_update_key(key_serial_t id, } /* find the target key (which must be writable) */ - key = lookup_user_key(NULL, id, 0, 0, KEY_WRITE); - if (IS_ERR(key)) { - ret = PTR_ERR(key); + key_ref = lookup_user_key(NULL, id, 0, 0, KEY_WRITE); + if (IS_ERR(key_ref)) { + ret = PTR_ERR(key_ref); goto error2; } /* update the key */ - ret = key_update(key, payload, plen); + ret = key_update(key_ref, payload, plen); - key_put(key); + key_ref_put(key_ref); error2: kfree(payload); error: @@ -349,19 +351,19 @@ long keyctl_update_key(key_serial_t id, */ long keyctl_revoke_key(key_serial_t id) { - struct key *key; + key_ref_t key_ref; long ret; - key = lookup_user_key(NULL, id, 0, 0, KEY_WRITE); - if (IS_ERR(key)) { - ret = PTR_ERR(key); + key_ref = lookup_user_key(NULL, id, 0, 0, KEY_WRITE); + if (IS_ERR(key_ref)) { + ret = PTR_ERR(key_ref); goto error; } - key_revoke(key); + key_revoke(key_ref_to_ptr(key_ref)); ret = 0; - key_put(key); + key_ref_put(key_ref); error: return ret; @@ -375,18 +377,18 @@ long keyctl_revoke_key(key_serial_t id) */ long keyctl_keyring_clear(key_serial_t ringid) { - struct key *keyring; + key_ref_t keyring_ref; long ret; - keyring = lookup_user_key(NULL, ringid, 1, 0, KEY_WRITE); - if (IS_ERR(keyring)) { - ret = PTR_ERR(keyring); + keyring_ref = lookup_user_key(NULL, ringid, 1, 0, KEY_WRITE); + if (IS_ERR(keyring_ref)) { + ret = PTR_ERR(keyring_ref); goto error; } - ret = keyring_clear(keyring); + ret = keyring_clear(key_ref_to_ptr(keyring_ref)); - key_put(keyring); + key_ref_put(keyring_ref); error: return ret; @@ -401,26 +403,26 @@ long keyctl_keyring_clear(key_serial_t ringid) */ long keyctl_keyring_link(key_serial_t id, key_serial_t ringid) { - struct key *keyring, *key; + key_ref_t keyring_ref, key_ref; long ret; - keyring = lookup_user_key(NULL, ringid, 1, 0, KEY_WRITE); - if (IS_ERR(keyring)) { - ret = PTR_ERR(keyring); + keyring_ref = lookup_user_key(NULL, ringid, 1, 0, KEY_WRITE); + if (IS_ERR(keyring_ref)) { + ret = PTR_ERR(keyring_ref); goto error; } - key = lookup_user_key(NULL, id, 1, 0, KEY_LINK); - if (IS_ERR(key)) { - ret = PTR_ERR(key); + key_ref = lookup_user_key(NULL, id, 1, 0, KEY_LINK); + if (IS_ERR(key_ref)) { + ret = PTR_ERR(key_ref); goto error2; } - ret = key_link(keyring, key); + ret = key_link(key_ref_to_ptr(keyring_ref), key_ref_to_ptr(key_ref)); - key_put(key); + key_ref_put(key_ref); error2: - key_put(keyring); + key_ref_put(keyring_ref); error: return ret; @@ -435,26 +437,26 @@ long keyctl_keyring_link(key_serial_t id, key_serial_t ringid) */ long keyctl_keyring_unlink(key_serial_t id, key_serial_t ringid) { - struct key *keyring, *key; + key_ref_t keyring_ref, key_ref; long ret; - keyring = lookup_user_key(NULL, ringid, 0, 0, KEY_WRITE); - if (IS_ERR(keyring)) { - ret = PTR_ERR(keyring); + keyring_ref = lookup_user_key(NULL, ringid, 0, 0, KEY_WRITE); + if (IS_ERR(keyring_ref)) { + ret = PTR_ERR(keyring_ref); goto error; } - key = lookup_user_key(NULL, id, 0, 0, 0); - if (IS_ERR(key)) { - ret = PTR_ERR(key); + key_ref = lookup_user_key(NULL, id, 0, 0, 0); + if (IS_ERR(key_ref)) { + ret = PTR_ERR(key_ref); goto error2; } - ret = key_unlink(keyring, key); + ret = key_unlink(key_ref_to_ptr(keyring_ref), key_ref_to_ptr(key_ref)); - key_put(key); + key_ref_put(key_ref); error2: - key_put(keyring); + key_ref_put(keyring_ref); error: return ret; @@ -476,24 +478,26 @@ long keyctl_describe_key(key_serial_t keyid, size_t buflen) { struct key *key, *instkey; + key_ref_t key_ref; char *tmpbuf; long ret; - key = lookup_user_key(NULL, keyid, 0, 1, KEY_VIEW); - if (IS_ERR(key)) { + key_ref = lookup_user_key(NULL, keyid, 0, 1, KEY_VIEW); + if (IS_ERR(key_ref)) { /* viewing a key under construction is permitted if we have the * authorisation token handy */ - if (PTR_ERR(key) == -EACCES) { + if (PTR_ERR(key_ref) == -EACCES) { instkey = key_get_instantiation_authkey(keyid); if (!IS_ERR(instkey)) { key_put(instkey); - key = lookup_user_key(NULL, keyid, 0, 1, 0); - if (!IS_ERR(key)) + key_ref = lookup_user_key(NULL, keyid, + 0, 1, 0); + if (!IS_ERR(key_ref)) goto okay; } } - ret = PTR_ERR(key); + ret = PTR_ERR(key_ref); goto error; } @@ -504,13 +508,16 @@ okay: if (!tmpbuf) goto error2; + key = key_ref_to_ptr(key_ref); + ret = snprintf(tmpbuf, PAGE_SIZE - 1, - "%s;%d;%d;%06x;%s", - key->type->name, - key->uid, - key->gid, - key->perm, - key->description ? key->description :"" + "%s;%d;%d;%08x;%s", + key_ref_to_ptr(key_ref)->type->name, + key_ref_to_ptr(key_ref)->uid, + key_ref_to_ptr(key_ref)->gid, + key_ref_to_ptr(key_ref)->perm, + key_ref_to_ptr(key_ref)->description ? + key_ref_to_ptr(key_ref)->description : "" ); /* include a NUL char at the end of the data */ @@ -530,7 +537,7 @@ okay: kfree(tmpbuf); error2: - key_put(key); + key_ref_put(key_ref); error: return ret; @@ -552,7 +559,7 @@ long keyctl_keyring_search(key_serial_t ringid, key_serial_t destringid) { struct key_type *ktype; - struct key *keyring, *key, *dest; + key_ref_t keyring_ref, key_ref, dest_ref; char type[32], *description; long dlen, ret; @@ -581,18 +588,18 @@ long keyctl_keyring_search(key_serial_t ringid, goto error2; /* get the keyring at which to begin the search */ - keyring = lookup_user_key(NULL, ringid, 0, 0, KEY_SEARCH); - if (IS_ERR(keyring)) { - ret = PTR_ERR(keyring); + keyring_ref = lookup_user_key(NULL, ringid, 0, 0, KEY_SEARCH); + if (IS_ERR(keyring_ref)) { + ret = PTR_ERR(keyring_ref); goto error2; } /* get the destination keyring if specified */ - dest = NULL; + dest_ref = NULL; if (destringid) { - dest = lookup_user_key(NULL, destringid, 1, 0, KEY_WRITE); - if (IS_ERR(dest)) { - ret = PTR_ERR(dest); + dest_ref = lookup_user_key(NULL, destringid, 1, 0, KEY_WRITE); + if (IS_ERR(dest_ref)) { + ret = PTR_ERR(dest_ref); goto error3; } } @@ -605,9 +612,9 @@ long keyctl_keyring_search(key_serial_t ringid, } /* do the search */ - key = keyring_search(keyring, ktype, description); - if (IS_ERR(key)) { - ret = PTR_ERR(key); + key_ref = keyring_search(keyring_ref, ktype, description); + if (IS_ERR(key_ref)) { + ret = PTR_ERR(key_ref); /* treat lack or presence of a negative key the same */ if (ret == -EAGAIN) @@ -616,26 +623,26 @@ long keyctl_keyring_search(key_serial_t ringid, } /* link the resulting key to the destination keyring if we can */ - if (dest) { + if (dest_ref) { ret = -EACCES; - if (!key_permission(key, KEY_LINK)) + if (!key_permission(key_ref, KEY_LINK)) goto error6; - ret = key_link(dest, key); + ret = key_link(key_ref_to_ptr(dest_ref), key_ref_to_ptr(key_ref)); if (ret < 0) goto error6; } - ret = key->serial; + ret = key_ref_to_ptr(key_ref)->serial; error6: - key_put(key); + key_ref_put(key_ref); error5: key_type_put(ktype); error4: - key_put(dest); + key_ref_put(dest_ref); error3: - key_put(keyring); + key_ref_put(keyring_ref); error2: kfree(description); error: @@ -643,16 +650,6 @@ long keyctl_keyring_search(key_serial_t ringid, } /* end keyctl_keyring_search() */ -/*****************************************************************************/ -/* - * see if the key we're looking at is the target key - */ -static int keyctl_read_key_same(const struct key *key, const void *target) -{ - return key == target; - -} /* end keyctl_read_key_same() */ - /*****************************************************************************/ /* * read a user key's payload @@ -665,38 +662,33 @@ static int keyctl_read_key_same(const struct key *key, const void *target) */ long keyctl_read_key(key_serial_t keyid, char __user *buffer, size_t buflen) { - struct key *key, *skey; + struct key *key; + key_ref_t key_ref; long ret; /* find the key first */ - key = lookup_user_key(NULL, keyid, 0, 0, 0); - if (!IS_ERR(key)) { - /* see if we can read it directly */ - if (key_permission(key, KEY_READ)) - goto can_read_key; + key_ref = lookup_user_key(NULL, keyid, 0, 0, 0); + if (IS_ERR(key_ref)) { + ret = -ENOKEY; + goto error; + } - /* we can't; see if it's searchable from this process's - * keyrings - * - we automatically take account of the fact that it may be - * dangling off an instantiation key - */ - skey = search_process_keyrings(key->type, key, - keyctl_read_key_same, current); - if (!IS_ERR(skey)) - goto can_read_key2; + key = key_ref_to_ptr(key_ref); - ret = PTR_ERR(skey); - if (ret == -EAGAIN) - ret = -EACCES; + /* see if we can read it directly */ + if (key_permission(key_ref, KEY_READ)) + goto can_read_key; + + /* we can't; see if it's searchable from this process's keyrings + * - we automatically take account of the fact that it may be + * dangling off an instantiation key + */ + if (!is_key_possessed(key_ref)) { + ret = -EACCES; goto error2; } - ret = -ENOKEY; - goto error; - /* the key is probably readable - now try to read it */ - can_read_key2: - key_put(skey); can_read_key: ret = key_validate(key); if (ret == 0) { @@ -727,18 +719,21 @@ long keyctl_read_key(key_serial_t keyid, char __user *buffer, size_t buflen) long keyctl_chown_key(key_serial_t id, uid_t uid, gid_t gid) { struct key *key; + key_ref_t key_ref; long ret; ret = 0; if (uid == (uid_t) -1 && gid == (gid_t) -1) goto error; - key = lookup_user_key(NULL, id, 1, 1, 0); - if (IS_ERR(key)) { - ret = PTR_ERR(key); + key_ref = lookup_user_key(NULL, id, 1, 1, 0); + if (IS_ERR(key_ref)) { + ret = PTR_ERR(key_ref); goto error; } + key = key_ref_to_ptr(key_ref); + /* make the changes with the locks held to prevent chown/chown races */ ret = -EACCES; down_write(&key->sem); @@ -784,18 +779,21 @@ long keyctl_chown_key(key_serial_t id, uid_t uid, gid_t gid) long keyctl_setperm_key(key_serial_t id, key_perm_t perm) { struct key *key; + key_ref_t key_ref; long ret; ret = -EINVAL; - if (perm & ~(KEY_USR_ALL | KEY_GRP_ALL | KEY_OTH_ALL)) + if (perm & ~(KEY_POS_ALL | KEY_USR_ALL | KEY_GRP_ALL | KEY_OTH_ALL)) goto error; - key = lookup_user_key(NULL, id, 1, 1, 0); - if (IS_ERR(key)) { - ret = PTR_ERR(key); + key_ref = lookup_user_key(NULL, id, 1, 1, 0); + if (IS_ERR(key_ref)) { + ret = PTR_ERR(key_ref); goto error; } + key = key_ref_to_ptr(key_ref); + /* make the changes with the locks held to prevent chown/chmod races */ ret = -EACCES; down_write(&key->sem); @@ -824,7 +822,8 @@ long keyctl_instantiate_key(key_serial_t id, key_serial_t ringid) { struct request_key_auth *rka; - struct key *instkey, *keyring; + struct key *instkey; + key_ref_t keyring_ref; void *payload; long ret; @@ -857,21 +856,21 @@ long keyctl_instantiate_key(key_serial_t id, /* find the destination keyring amongst those belonging to the * requesting task */ - keyring = NULL; + keyring_ref = NULL; if (ringid) { - keyring = lookup_user_key(rka->context, ringid, 1, 0, - KEY_WRITE); - if (IS_ERR(keyring)) { - ret = PTR_ERR(keyring); + keyring_ref = lookup_user_key(rka->context, ringid, 1, 0, + KEY_WRITE); + if (IS_ERR(keyring_ref)) { + ret = PTR_ERR(keyring_ref); goto error3; } } /* instantiate the key and link it into a keyring */ ret = key_instantiate_and_link(rka->target_key, payload, plen, - keyring, instkey); + key_ref_to_ptr(keyring_ref), instkey); - key_put(keyring); + key_ref_put(keyring_ref); error3: key_put(instkey); error2: @@ -889,7 +888,8 @@ long keyctl_instantiate_key(key_serial_t id, long keyctl_negate_key(key_serial_t id, unsigned timeout, key_serial_t ringid) { struct request_key_auth *rka; - struct key *instkey, *keyring; + struct key *instkey; + key_ref_t keyring_ref; long ret; /* find the instantiation authorisation key */ @@ -903,19 +903,20 @@ long keyctl_negate_key(key_serial_t id, unsigned timeout, key_serial_t ringid) /* find the destination keyring if present (which must also be * writable) */ - keyring = NULL; + keyring_ref = NULL; if (ringid) { - keyring = lookup_user_key(NULL, ringid, 1, 0, KEY_WRITE); - if (IS_ERR(keyring)) { - ret = PTR_ERR(keyring); + keyring_ref = lookup_user_key(NULL, ringid, 1, 0, KEY_WRITE); + if (IS_ERR(keyring_ref)) { + ret = PTR_ERR(keyring_ref); goto error2; } } /* instantiate the key and link it into a keyring */ - ret = key_negate_and_link(rka->target_key, timeout, keyring, instkey); + ret = key_negate_and_link(rka->target_key, timeout, + key_ref_to_ptr(keyring_ref), instkey); - key_put(keyring); + key_ref_put(keyring_ref); error2: key_put(instkey); error: diff --git a/security/keys/keyring.c b/security/keys/keyring.c index 9c208c756df8..0639396dd441 100644 --- a/security/keys/keyring.c +++ b/security/keys/keyring.c @@ -309,7 +309,7 @@ struct key *keyring_alloc(const char *description, uid_t uid, gid_t gid, int ret; keyring = key_alloc(&key_type_keyring, description, - uid, gid, KEY_USR_ALL, not_in_quota); + uid, gid, KEY_POS_ALL | KEY_USR_ALL, not_in_quota); if (!IS_ERR(keyring)) { ret = key_instantiate_and_link(keyring, NULL, 0, dest, NULL); @@ -333,12 +333,13 @@ struct key *keyring_alloc(const char *description, uid_t uid, gid_t gid, * - we rely on RCU to prevent the keyring lists from disappearing on us * - we return -EAGAIN if we didn't find any matching key * - we return -ENOKEY if we only found negative matching keys + * - we propagate the possession attribute from the keyring ref to the key ref */ -struct key *keyring_search_aux(struct key *keyring, - struct task_struct *context, - struct key_type *type, - const void *description, - key_match_func_t match) +key_ref_t keyring_search_aux(key_ref_t keyring_ref, + struct task_struct *context, + struct key_type *type, + const void *description, + key_match_func_t match) { struct { struct keyring_list *keylist; @@ -347,29 +348,33 @@ struct key *keyring_search_aux(struct key *keyring, struct keyring_list *keylist; struct timespec now; - struct key *key; + unsigned long possessed; + struct key *keyring, *key; + key_ref_t key_ref; long err; int sp, kix; + keyring = key_ref_to_ptr(keyring_ref); + possessed = is_key_possessed(keyring_ref); key_check(keyring); - rcu_read_lock(); - /* top keyring must have search permission to begin the search */ - key = ERR_PTR(-EACCES); - if (!key_task_permission(keyring, context, KEY_SEARCH)) + key_ref = ERR_PTR(-EACCES); + if (!key_task_permission(keyring_ref, context, KEY_SEARCH)) goto error; - key = ERR_PTR(-ENOTDIR); + key_ref = ERR_PTR(-ENOTDIR); if (keyring->type != &key_type_keyring) goto error; + rcu_read_lock(); + now = current_kernel_time(); err = -EAGAIN; sp = 0; /* start processing a new keyring */ - descend: +descend: if (test_bit(KEY_FLAG_REVOKED, &keyring->flags)) goto not_this_keyring; @@ -397,7 +402,8 @@ struct key *keyring_search_aux(struct key *keyring, continue; /* key must have search permissions */ - if (!key_task_permission(key, context, KEY_SEARCH)) + if (!key_task_permission(make_key_ref(key, possessed), + context, KEY_SEARCH)) continue; /* we set a different error code if we find a negative key */ @@ -411,7 +417,7 @@ struct key *keyring_search_aux(struct key *keyring, /* search through the keyrings nested in this one */ kix = 0; - ascend: +ascend: for (; kix < keylist->nkeys; kix++) { key = keylist->keys[kix]; if (key->type != &key_type_keyring) @@ -423,7 +429,8 @@ struct key *keyring_search_aux(struct key *keyring, if (sp >= KEYRING_SEARCH_MAX_DEPTH) continue; - if (!key_task_permission(key, context, KEY_SEARCH)) + if (!key_task_permission(make_key_ref(key, possessed), + context, KEY_SEARCH)) continue; /* stack the current position */ @@ -438,7 +445,7 @@ struct key *keyring_search_aux(struct key *keyring, /* the keyring we're looking at was disqualified or didn't contain a * matching key */ - not_this_keyring: +not_this_keyring: if (sp > 0) { /* resume the processing of a keyring higher up in the tree */ sp--; @@ -447,16 +454,18 @@ struct key *keyring_search_aux(struct key *keyring, goto ascend; } - key = ERR_PTR(err); - goto error; + key_ref = ERR_PTR(err); + goto error_2; /* we found a viable match */ - found: +found: atomic_inc(&key->usage); key_check(key); - error: + key_ref = make_key_ref(key, possessed); +error_2: rcu_read_unlock(); - return key; +error: + return key_ref; } /* end keyring_search_aux() */ @@ -469,9 +478,9 @@ struct key *keyring_search_aux(struct key *keyring, * - we return -EAGAIN if we didn't find any matching key * - we return -ENOKEY if we only found negative matching keys */ -struct key *keyring_search(struct key *keyring, - struct key_type *type, - const char *description) +key_ref_t keyring_search(key_ref_t keyring, + struct key_type *type, + const char *description) { if (!type->match) return ERR_PTR(-ENOKEY); @@ -488,15 +497,19 @@ EXPORT_SYMBOL(keyring_search); * search the given keyring only (no recursion) * - keyring must be locked by caller */ -struct key *__keyring_search_one(struct key *keyring, - const struct key_type *ktype, - const char *description, - key_perm_t perm) +key_ref_t __keyring_search_one(key_ref_t keyring_ref, + const struct key_type *ktype, + const char *description, + key_perm_t perm) { struct keyring_list *klist; - struct key *key; + unsigned long possessed; + struct key *keyring, *key; int loop; + keyring = key_ref_to_ptr(keyring_ref); + possessed = is_key_possessed(keyring_ref); + rcu_read_lock(); klist = rcu_dereference(keyring->payload.subscriptions); @@ -507,21 +520,21 @@ struct key *__keyring_search_one(struct key *keyring, if (key->type == ktype && (!key->type->match || key->type->match(key, description)) && - key_permission(key, perm) && + key_permission(make_key_ref(key, possessed), + perm) && !test_bit(KEY_FLAG_REVOKED, &key->flags) ) goto found; } } - key = ERR_PTR(-ENOKEY); - goto error; + rcu_read_unlock(); + return ERR_PTR(-ENOKEY); found: atomic_inc(&key->usage); - error: rcu_read_unlock(); - return key; + return make_key_ref(key, possessed); } /* end __keyring_search_one() */ @@ -603,7 +616,8 @@ struct key *find_keyring_by_name(const char *name, key_serial_t bound) if (strcmp(keyring->description, name) != 0) continue; - if (!key_permission(keyring, KEY_SEARCH)) + if (!key_permission(make_key_ref(keyring, 0), + KEY_SEARCH)) continue; /* found a potential candidate, but we still need to diff --git a/security/keys/proc.c b/security/keys/proc.c index c55cf1fd0826..12b750e51fbf 100644 --- a/security/keys/proc.c +++ b/security/keys/proc.c @@ -167,7 +167,7 @@ static int proc_keys_show(struct seq_file *m, void *v) #define showflag(KEY, LETTER, FLAG) \ (test_bit(FLAG, &(KEY)->flags) ? LETTER : '-') - seq_printf(m, "%08x %c%c%c%c%c%c %5d %4s %06x %5d %5d %-9.9s ", + seq_printf(m, "%08x %c%c%c%c%c%c %5d %4s %08x %5d %5d %-9.9s ", key->serial, showflag(key, 'I', KEY_FLAG_INSTANTIATED), showflag(key, 'R', KEY_FLAG_REVOKED), diff --git a/security/keys/process_keys.c b/security/keys/process_keys.c index c089f78fb94e..d42d2158ce13 100644 --- a/security/keys/process_keys.c +++ b/security/keys/process_keys.c @@ -39,7 +39,7 @@ struct key root_user_keyring = { .type = &key_type_keyring, .user = &root_key_user, .sem = __RWSEM_INITIALIZER(root_user_keyring.sem), - .perm = KEY_USR_ALL, + .perm = KEY_POS_ALL | KEY_USR_ALL, .flags = 1 << KEY_FLAG_INSTANTIATED, .description = "_uid.0", #ifdef KEY_DEBUGGING @@ -54,7 +54,7 @@ struct key root_session_keyring = { .type = &key_type_keyring, .user = &root_key_user, .sem = __RWSEM_INITIALIZER(root_session_keyring.sem), - .perm = KEY_USR_ALL, + .perm = KEY_POS_ALL | KEY_USR_ALL, .flags = 1 << KEY_FLAG_INSTANTIATED, .description = "_uid_ses.0", #ifdef KEY_DEBUGGING @@ -98,7 +98,7 @@ int alloc_uid_keyring(struct user_struct *user) user->session_keyring = session_keyring; ret = 0; - error: +error: return ret; } /* end alloc_uid_keyring() */ @@ -156,7 +156,7 @@ int install_thread_keyring(struct task_struct *tsk) ret = 0; key_put(old); - error: +error: return ret; } /* end install_thread_keyring() */ @@ -193,7 +193,7 @@ int install_process_keyring(struct task_struct *tsk) } ret = 0; - error: +error: return ret; } /* end install_process_keyring() */ @@ -236,7 +236,7 @@ static int install_session_keyring(struct task_struct *tsk, /* we're using RCU on the pointer */ synchronize_rcu(); key_put(old); - error: +error: return ret; } /* end install_session_keyring() */ @@ -376,13 +376,13 @@ void key_fsgid_changed(struct task_struct *tsk) * - we return -EAGAIN if we didn't find any matching key * - we return -ENOKEY if we found only negative matching keys */ -struct key *search_process_keyrings(struct key_type *type, - const void *description, - key_match_func_t match, - struct task_struct *context) +key_ref_t search_process_keyrings(struct key_type *type, + const void *description, + key_match_func_t match, + struct task_struct *context) { struct request_key_auth *rka; - struct key *key, *ret, *err, *instkey; + key_ref_t key_ref, ret, err, instkey_ref; /* we want to return -EAGAIN or -ENOKEY if any of the keyrings were * searchable, but we failed to find a key or we found a negative key; @@ -391,46 +391,48 @@ struct key *search_process_keyrings(struct key_type *type, * * in terms of priority: success > -ENOKEY > -EAGAIN > other error */ - key = NULL; + key_ref = NULL; ret = NULL; err = ERR_PTR(-EAGAIN); /* search the thread keyring first */ if (context->thread_keyring) { - key = keyring_search_aux(context->thread_keyring, - context, type, description, match); - if (!IS_ERR(key)) + key_ref = keyring_search_aux( + make_key_ref(context->thread_keyring, 1), + context, type, description, match); + if (!IS_ERR(key_ref)) goto found; - switch (PTR_ERR(key)) { + switch (PTR_ERR(key_ref)) { case -EAGAIN: /* no key */ if (ret) break; case -ENOKEY: /* negative key */ - ret = key; + ret = key_ref; break; default: - err = key; + err = key_ref; break; } } /* search the process keyring second */ if (context->signal->process_keyring) { - key = keyring_search_aux(context->signal->process_keyring, - context, type, description, match); - if (!IS_ERR(key)) + key_ref = keyring_search_aux( + make_key_ref(context->signal->process_keyring, 1), + context, type, description, match); + if (!IS_ERR(key_ref)) goto found; - switch (PTR_ERR(key)) { + switch (PTR_ERR(key_ref)) { case -EAGAIN: /* no key */ if (ret) break; case -ENOKEY: /* negative key */ - ret = key; + ret = key_ref; break; default: - err = key; + err = key_ref; break; } } @@ -438,23 +440,25 @@ struct key *search_process_keyrings(struct key_type *type, /* search the session keyring */ if (context->signal->session_keyring) { rcu_read_lock(); - key = keyring_search_aux( - rcu_dereference(context->signal->session_keyring), + key_ref = keyring_search_aux( + make_key_ref(rcu_dereference( + context->signal->session_keyring), + 1), context, type, description, match); rcu_read_unlock(); - if (!IS_ERR(key)) + if (!IS_ERR(key_ref)) goto found; - switch (PTR_ERR(key)) { + switch (PTR_ERR(key_ref)) { case -EAGAIN: /* no key */ if (ret) break; case -ENOKEY: /* negative key */ - ret = key; + ret = key_ref; break; default: - err = key; + err = key_ref; break; } @@ -465,51 +469,54 @@ struct key *search_process_keyrings(struct key_type *type, goto no_key; rcu_read_lock(); - instkey = __keyring_search_one( - rcu_dereference(context->signal->session_keyring), + instkey_ref = __keyring_search_one( + make_key_ref(rcu_dereference( + context->signal->session_keyring), + 1), &key_type_request_key_auth, NULL, 0); rcu_read_unlock(); - if (IS_ERR(instkey)) + if (IS_ERR(instkey_ref)) goto no_key; - rka = instkey->payload.data; + rka = key_ref_to_ptr(instkey_ref)->payload.data; - key = search_process_keyrings(type, description, match, - rka->context); - key_put(instkey); + key_ref = search_process_keyrings(type, description, match, + rka->context); + key_ref_put(instkey_ref); - if (!IS_ERR(key)) + if (!IS_ERR(key_ref)) goto found; - switch (PTR_ERR(key)) { + switch (PTR_ERR(key_ref)) { case -EAGAIN: /* no key */ if (ret) break; case -ENOKEY: /* negative key */ - ret = key; + ret = key_ref; break; default: - err = key; + err = key_ref; break; } } /* or search the user-session keyring */ else { - key = keyring_search_aux(context->user->session_keyring, - context, type, description, match); - if (!IS_ERR(key)) + key_ref = keyring_search_aux( + make_key_ref(context->user->session_keyring, 1), + context, type, description, match); + if (!IS_ERR(key_ref)) goto found; - switch (PTR_ERR(key)) { + switch (PTR_ERR(key_ref)) { case -EAGAIN: /* no key */ if (ret) break; case -ENOKEY: /* negative key */ - ret = key; + ret = key_ref; break; default: - err = key; + err = key_ref; break; } } @@ -517,29 +524,40 @@ struct key *search_process_keyrings(struct key_type *type, no_key: /* no key - decide on the error we're going to go for */ - key = ret ? ret : err; + key_ref = ret ? ret : err; found: - return key; + return key_ref; } /* end search_process_keyrings() */ +/*****************************************************************************/ +/* + * see if the key we're looking at is the target key + */ +static int lookup_user_key_possessed(const struct key *key, const void *target) +{ + return key == target; + +} /* end lookup_user_key_possessed() */ + /*****************************************************************************/ /* * lookup a key given a key ID from userspace with a given permissions mask * - don't create special keyrings unless so requested * - partially constructed keys aren't found unless requested */ -struct key *lookup_user_key(struct task_struct *context, key_serial_t id, - int create, int partial, key_perm_t perm) +key_ref_t lookup_user_key(struct task_struct *context, key_serial_t id, + int create, int partial, key_perm_t perm) { + key_ref_t key_ref, skey_ref; struct key *key; int ret; if (!context) context = current; - key = ERR_PTR(-ENOKEY); + key_ref = ERR_PTR(-ENOKEY); switch (id) { case KEY_SPEC_THREAD_KEYRING: @@ -556,6 +574,7 @@ struct key *lookup_user_key(struct task_struct *context, key_serial_t id, key = context->thread_keyring; atomic_inc(&key->usage); + key_ref = make_key_ref(key, 1); break; case KEY_SPEC_PROCESS_KEYRING: @@ -572,6 +591,7 @@ struct key *lookup_user_key(struct task_struct *context, key_serial_t id, key = context->signal->process_keyring; atomic_inc(&key->usage); + key_ref = make_key_ref(key, 1); break; case KEY_SPEC_SESSION_KEYRING: @@ -579,7 +599,7 @@ struct key *lookup_user_key(struct task_struct *context, key_serial_t id, /* always install a session keyring upon access if one * doesn't exist yet */ ret = install_session_keyring( - context, context->user->session_keyring); + context, context->user->session_keyring); if (ret < 0) goto error; } @@ -588,16 +608,19 @@ struct key *lookup_user_key(struct task_struct *context, key_serial_t id, key = rcu_dereference(context->signal->session_keyring); atomic_inc(&key->usage); rcu_read_unlock(); + key_ref = make_key_ref(key, 1); break; case KEY_SPEC_USER_KEYRING: key = context->user->uid_keyring; atomic_inc(&key->usage); + key_ref = make_key_ref(key, 1); break; case KEY_SPEC_USER_SESSION_KEYRING: key = context->user->session_keyring; atomic_inc(&key->usage); + key_ref = make_key_ref(key, 1); break; case KEY_SPEC_GROUP_KEYRING: @@ -606,13 +629,28 @@ struct key *lookup_user_key(struct task_struct *context, key_serial_t id, goto error; default: - key = ERR_PTR(-EINVAL); + key_ref = ERR_PTR(-EINVAL); if (id < 1) goto error; key = key_lookup(id); - if (IS_ERR(key)) + if (IS_ERR(key)) { + key_ref = ERR_PTR(PTR_ERR(key)); goto error; + } + + key_ref = make_key_ref(key, 0); + + /* check to see if we possess the key */ + skey_ref = search_process_keyrings(key->type, key, + lookup_user_key_possessed, + current); + + if (!IS_ERR(skey_ref)) { + key_put(key); + key_ref = skey_ref; + } + break; } @@ -630,15 +668,15 @@ struct key *lookup_user_key(struct task_struct *context, key_serial_t id, /* check the permissions */ ret = -EACCES; - if (!key_task_permission(key, context, perm)) + if (!key_task_permission(key_ref, context, perm)) goto invalid_key; - error: - return key; +error: + return key_ref; - invalid_key: - key_put(key); - key = ERR_PTR(ret); +invalid_key: + key_ref_put(key_ref); + key_ref = ERR_PTR(ret); goto error; } /* end lookup_user_key() */ @@ -694,9 +732,9 @@ long join_session_keyring(const char *name) ret = keyring->serial; key_put(keyring); - error2: +error2: up(&key_session_sem); - error: +error: return ret; } /* end join_session_keyring() */ diff --git a/security/keys/request_key.c b/security/keys/request_key.c index 90c1506d007c..e6dd366d43a3 100644 --- a/security/keys/request_key.c +++ b/security/keys/request_key.c @@ -129,7 +129,7 @@ static struct key *__request_key_construction(struct key_type *type, /* create a key and add it to the queue */ key = key_alloc(type, description, - current->fsuid, current->fsgid, KEY_USR_ALL, 0); + current->fsuid, current->fsgid, KEY_POS_ALL, 0); if (IS_ERR(key)) goto alloc_failed; @@ -365,14 +365,24 @@ struct key *request_key_and_link(struct key_type *type, { struct key_user *user; struct key *key; + key_ref_t key_ref; kenter("%s,%s,%s,%p", type->name, description, callout_info, dest_keyring); /* search all the process keyrings for a key */ - key = search_process_keyrings(type, description, type->match, current); + key_ref = search_process_keyrings(type, description, type->match, + current); - if (PTR_ERR(key) == -EAGAIN) { + kdebug("search 1: %p", key_ref); + + if (!IS_ERR(key_ref)) { + key = key_ref_to_ptr(key_ref); + } + else if (PTR_ERR(key_ref) != -EAGAIN) { + key = ERR_PTR(PTR_ERR(key_ref)); + } + else { /* the search failed, but the keyrings were searchable, so we * should consult userspace if we can */ key = ERR_PTR(-ENOKEY); @@ -384,7 +394,7 @@ struct key *request_key_and_link(struct key_type *type, if (!user) goto nomem; - do { + for (;;) { if (signal_pending(current)) goto interrupted; @@ -397,10 +407,22 @@ struct key *request_key_and_link(struct key_type *type, /* someone else made the key we want, so we need to * search again as it might now be available to us */ - key = search_process_keyrings(type, description, - type->match, current); + key_ref = search_process_keyrings(type, description, + type->match, + current); - } while (PTR_ERR(key) == -EAGAIN); + kdebug("search 2: %p", key_ref); + + if (!IS_ERR(key_ref)) { + key = key_ref_to_ptr(key_ref); + break; + } + + if (PTR_ERR(key_ref) != -EAGAIN) { + key = ERR_PTR(PTR_ERR(key_ref)); + break; + } + } key_user_put(user); diff --git a/security/keys/request_key_auth.c b/security/keys/request_key_auth.c index f22264632229..1ecd3d3fa9f8 100644 --- a/security/keys/request_key_auth.c +++ b/security/keys/request_key_auth.c @@ -126,7 +126,7 @@ struct key *request_key_auth_new(struct key *target, struct key **_rkakey) rkakey = key_alloc(&key_type_request_key_auth, desc, current->fsuid, current->fsgid, - KEY_USR_VIEW, 1); + KEY_POS_VIEW | KEY_USR_VIEW, 1); if (IS_ERR(rkakey)) { key_put(keyring); kleave("= %ld", PTR_ERR(rkakey)); From 1146bc743e074760ef0dd08b3457f35a68069a54 Mon Sep 17 00:00:00 2001 From: Dominik Brodowski Date: Wed, 28 Sep 2005 19:28:37 +0200 Subject: [PATCH 216/352] [PATCH] pcmcia: allow one port excludes Allow for excluding only one port in /etc/pcmcia/config.otps Signed-off-by: Dominik Brodowski --- drivers/pcmcia/rsrc_nonstatic.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/pcmcia/rsrc_nonstatic.c b/drivers/pcmcia/rsrc_nonstatic.c index c42455d20eb6..7e1b7fcd8333 100644 --- a/drivers/pcmcia/rsrc_nonstatic.c +++ b/drivers/pcmcia/rsrc_nonstatic.c @@ -691,7 +691,7 @@ static int adjust_memory(struct pcmcia_socket *s, unsigned int action, unsigned unsigned long size = end - start + 1; int ret = 0; - if (end <= start) + if (end < start) return -EINVAL; down(&rsrc_sem); @@ -724,7 +724,7 @@ static int adjust_io(struct pcmcia_socket *s, unsigned int action, unsigned long unsigned long size = end - start + 1; int ret = 0; - if (end <= start) + if (end < start) return -EINVAL; if (end > IO_SPACE_LIMIT) @@ -925,7 +925,7 @@ static ssize_t store_io_db(struct class_device *class_dev, const char *buf, size return -EINVAL; } } - if (end_addr <= start_addr) + if (end_addr < start_addr) return -EINVAL; ret = adjust_io(s, add, start_addr, end_addr); @@ -977,7 +977,7 @@ static ssize_t store_mem_db(struct class_device *class_dev, const char *buf, siz return -EINVAL; } } - if (end_addr <= start_addr) + if (end_addr < start_addr) return -EINVAL; ret = adjust_memory(s, add, start_addr, end_addr); From 54bb5675a6e966a58755ac44e3407f8ec2272b82 Mon Sep 17 00:00:00 2001 From: Dominik Brodowski Date: Wed, 28 Sep 2005 19:29:59 +0200 Subject: [PATCH 217/352] [PATCH] pcmcia: only start up nonstatic sockets if both mem and io are available Only start up nonstatic sockets if both IO and MEM resources are available. Thanks to Russell King and Matthew Wilcox for tracking this down. Signed-off-by: Dominik Brodowski --- drivers/pcmcia/rsrc_nonstatic.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pcmcia/rsrc_nonstatic.c b/drivers/pcmcia/rsrc_nonstatic.c index 7e1b7fcd8333..f9a5c70284b5 100644 --- a/drivers/pcmcia/rsrc_nonstatic.c +++ b/drivers/pcmcia/rsrc_nonstatic.c @@ -817,7 +817,7 @@ static int nonstatic_autoadd_resources(struct pcmcia_socket *s) /* if we got at least one of IO, and one of MEM, we can be glad and * activate the PCMCIA subsystem */ - if (done & (IORESOURCE_MEM | IORESOURCE_IO)) + if (done == (IORESOURCE_MEM | IORESOURCE_IO)) s->resource_setup_done = 1; return 0; From 6b251858d377196b8cea20e65cae60f584a42735 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 28 Sep 2005 16:31:48 -0700 Subject: [PATCH 218/352] [TCP]: Fix init_cwnd calculations in tcp_select_initial_window() Match it up to what RFC2414 really specifies. Noticed by Rick Jones. Signed-off-by: David S. Miller --- net/ipv4/tcp_output.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index d6e3d269e906..caf2e2cff293 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -190,15 +190,16 @@ void tcp_select_initial_window(int __space, __u32 mss, } /* Set initial window to value enough for senders, - * following RFC1414. Senders, not following this RFC, + * following RFC2414. Senders, not following this RFC, * will be satisfied with 2. */ if (mss > (1<<*rcv_wscale)) { - int init_cwnd = 4; - if (mss > 1460*3) + int init_cwnd; + + if (mss > 1460) init_cwnd = 2; - else if (mss > 1460) - init_cwnd = 3; + else + init_cwnd = (mss > 1095) ? 3 : 4; if (*rcv_wnd > init_cwnd*mss) *rcv_wnd = init_cwnd*mss; } From e2c4b72158a9f1286df41dee478e774f1b94e93a Mon Sep 17 00:00:00 2001 From: Roman Kagan Date: Wed, 28 Sep 2005 16:34:24 -0700 Subject: [PATCH 219/352] [ATM]: net/atm/ioctl.c: autoload pppoatm and br2684 Signed-off-by: Roman Kagan Signed-off-by: Chas Williams --- net/atm/ioctl.c | 34 ++++++++++++++++++++++++++-------- 1 file changed, 26 insertions(+), 8 deletions(-) diff --git a/net/atm/ioctl.c b/net/atm/ioctl.c index d89056ec44d4..a150198b05a3 100644 --- a/net/atm/ioctl.c +++ b/net/atm/ioctl.c @@ -105,17 +105,35 @@ int vcc_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) if (!error) sock->state = SS_CONNECTED; goto done; - default: + case ATM_SETBACKEND: + case ATM_NEWBACKENDIF: + { + atm_backend_t backend; + error = get_user(backend, (atm_backend_t __user *) argp); + if (error) + goto done; + switch (backend) { + case ATM_BACKEND_PPP: + request_module("pppoatm"); + break; + case ATM_BACKEND_BR2684: + request_module("br2684"); + break; + } + } + break; + case ATMMPC_CTRL: + case ATMMPC_DATA: + request_module("mpoa"); + break; + case ATMARPD_CTRL: + request_module("clip"); + break; + case ATMLEC_CTRL: + request_module("lec"); break; } - if (cmd == ATMMPC_CTRL || cmd == ATMMPC_DATA) - request_module("mpoa"); - if (cmd == ATMARPD_CTRL) - request_module("clip"); - if (cmd == ATMLEC_CTRL) - request_module("lec"); - error = -ENOIOCTLCMD; down(&ioctl_mutex); From 9301e320e98ff19a0e48881b038d0c24ca76e6c0 Mon Sep 17 00:00:00 2001 From: Chas Williams Date: Wed, 28 Sep 2005 16:35:01 -0700 Subject: [PATCH 220/352] [ATM]: track and close listen sockets when sigd exits Signed-off-by: Chas Williams --- net/atm/common.c | 4 ++-- net/atm/signaling.c | 8 ++++---- net/atm/svc.c | 1 + 3 files changed, 7 insertions(+), 6 deletions(-) diff --git a/net/atm/common.c b/net/atm/common.c index e93e838069e8..801a5813ec60 100644 --- a/net/atm/common.c +++ b/net/atm/common.c @@ -178,8 +178,6 @@ static void vcc_destroy_socket(struct sock *sk) if (vcc->push) vcc->push(vcc, NULL); /* atmarpd has no push */ - vcc_remove_socket(sk); /* no more receive */ - while ((skb = skb_dequeue(&sk->sk_receive_queue)) != NULL) { atm_return(vcc,skb->truesize); kfree_skb(skb); @@ -188,6 +186,8 @@ static void vcc_destroy_socket(struct sock *sk) module_put(vcc->dev->ops->owner); atm_dev_put(vcc->dev); } + + vcc_remove_socket(sk); } diff --git a/net/atm/signaling.c b/net/atm/signaling.c index f7c449ac1800..e7211a7f382c 100644 --- a/net/atm/signaling.c +++ b/net/atm/signaling.c @@ -217,8 +217,9 @@ void sigd_enq(struct atm_vcc *vcc,enum atmsvc_msg_type type, static void purge_vcc(struct atm_vcc *vcc) { if (sk_atm(vcc)->sk_family == PF_ATMSVC && - !test_bit(ATM_VF_META,&vcc->flags)) { - set_bit(ATM_VF_RELEASED,&vcc->flags); + !test_bit(ATM_VF_META, &vcc->flags)) { + set_bit(ATM_VF_RELEASED, &vcc->flags); + clear_bit(ATM_VF_REGIS, &vcc->flags); vcc_release_async(vcc, -EUNATCH); } } @@ -243,8 +244,7 @@ static void sigd_close(struct atm_vcc *vcc) sk_for_each(s, node, head) { struct atm_vcc *vcc = atm_sk(s); - if (vcc->dev) - purge_vcc(vcc); + purge_vcc(vcc); } } read_unlock(&vcc_sklist_lock); diff --git a/net/atm/svc.c b/net/atm/svc.c index 08e46052a3e4..d7b266136bf6 100644 --- a/net/atm/svc.c +++ b/net/atm/svc.c @@ -302,6 +302,7 @@ static int svc_listen(struct socket *sock,int backlog) error = -EINVAL; goto out; } + vcc_insert_socket(sk); set_bit(ATM_VF_WAITING, &vcc->flags); prepare_to_wait(sk->sk_sleep, &wait, TASK_UNINTERRUPTIBLE); sigd_enq(vcc,as_listen,NULL,NULL,&vcc->local); From 735631a9196db42631b8817892605ee72e13a58b Mon Sep 17 00:00:00 2001 From: Martin Whitaker Date: Wed, 28 Sep 2005 16:35:22 -0700 Subject: [PATCH 221/352] [ATM]: fix bug in atm address list handling From: Martin Whitaker Signed-off-by: Chas Williams --- net/atm/addr.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/net/atm/addr.c b/net/atm/addr.c index 1c8867f7f54a..a30d0bf48063 100644 --- a/net/atm/addr.c +++ b/net/atm/addr.c @@ -50,8 +50,10 @@ void atm_reset_addr(struct atm_dev *dev) struct atm_dev_addr *this, *p; spin_lock_irqsave(&dev->lock, flags); - list_for_each_entry_safe(this, p, &dev->local, entry) - kfree(this); + list_for_each_entry_safe(this, p, &dev->local, entry) { + list_del(&this->entry); + kfree(this); + } spin_unlock_irqrestore(&dev->lock, flags); notify_sigd(dev); } From 705747ab87c96f1b4b8e73ba617c323d9087f6ac Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 28 Sep 2005 16:48:40 -0700 Subject: [PATCH 222/352] [SPARC64]: Fix bug in unaligned load endianness swapping The in-memory value was being swapped, not the value we loaded into the register. Signed-off-by: David S. Miller --- arch/sparc64/kernel/unaligned.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/sparc64/kernel/unaligned.c b/arch/sparc64/kernel/unaligned.c index 42718f6a7d36..02af08ffec8f 100644 --- a/arch/sparc64/kernel/unaligned.c +++ b/arch/sparc64/kernel/unaligned.c @@ -294,7 +294,7 @@ asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn, u kernel_mna_trap_fault(); } else { - unsigned long addr; + unsigned long addr, *reg_addr; int orig_asi, asi; addr = compute_effective_address(regs, insn, @@ -319,11 +319,11 @@ asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn, u }; switch (dir) { case load: - do_int_load(fetch_reg_addr(((insn>>25)&0x1f), regs), - size, (unsigned long *) addr, + reg_addr = fetch_reg_addr(((insn>>25)&0x1f), regs); + do_int_load(reg_addr, size, (unsigned long *) addr, decode_signedness(insn), asi); if (unlikely(asi != orig_asi)) { - unsigned long val_in = *(unsigned long *) addr; + unsigned long val_in = *reg_addr; switch (size) { case 2: val_in = swab16(val_in); @@ -339,7 +339,7 @@ asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn, u BUG(); break; }; - *(unsigned long *) addr = val_in; + *reg_addr = val_in; } break; From 8cf14af0a740fb7e9f94a203b5a989beb875d58f Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 28 Sep 2005 20:21:11 -0700 Subject: [PATCH 223/352] [SPARC64]: Convert to use generic exception table support. The funny "range" exception table entries we had were only used by the compat layer socketcall assembly, and it wasn't even needed there. For free we now get proper exception table sorting and fast binary searching. Signed-off-by: David S. Miller --- arch/sparc64/kernel/sys32.S | 145 ++++++++++++++++++-------------- arch/sparc64/kernel/traps.c | 24 +++--- arch/sparc64/kernel/unaligned.c | 9 +- arch/sparc64/mm/Makefile | 2 +- arch/sparc64/mm/extable.c | 80 ------------------ arch/sparc64/mm/fault.c | 10 +-- include/asm-sparc64/uaccess.h | 17 +--- 7 files changed, 101 insertions(+), 186 deletions(-) delete mode 100644 arch/sparc64/mm/extable.c diff --git a/arch/sparc64/kernel/sys32.S b/arch/sparc64/kernel/sys32.S index 5f9e4fae612e..4fb99e0bc7c3 100644 --- a/arch/sparc64/kernel/sys32.S +++ b/arch/sparc64/kernel/sys32.S @@ -158,163 +158,163 @@ sys32_socketcall: /* %o0=call, %o1=args */ jmpl %g2 + %o0, %g0 nop - /* Each entry is exactly 32 bytes. */ .align 32 __socketcall_table_begin: + + /* Each entry is exactly 32 bytes. */ do_sys_socket: /* sys_socket(int, int, int) */ - ldswa [%o1 + 0x0] %asi, %o0 +1: ldswa [%o1 + 0x0] %asi, %o0 sethi %hi(sys_socket), %g1 - ldswa [%o1 + 0x8] %asi, %o2 +2: ldswa [%o1 + 0x8] %asi, %o2 jmpl %g1 + %lo(sys_socket), %g0 - ldswa [%o1 + 0x4] %asi, %o1 +3: ldswa [%o1 + 0x4] %asi, %o1 nop nop nop do_sys_bind: /* sys_bind(int fd, struct sockaddr *, int) */ - ldswa [%o1 + 0x0] %asi, %o0 +4: ldswa [%o1 + 0x0] %asi, %o0 sethi %hi(sys_bind), %g1 - ldswa [%o1 + 0x8] %asi, %o2 +5: ldswa [%o1 + 0x8] %asi, %o2 jmpl %g1 + %lo(sys_bind), %g0 - lduwa [%o1 + 0x4] %asi, %o1 +6: lduwa [%o1 + 0x4] %asi, %o1 nop nop nop do_sys_connect: /* sys_connect(int, struct sockaddr *, int) */ - ldswa [%o1 + 0x0] %asi, %o0 +7: ldswa [%o1 + 0x0] %asi, %o0 sethi %hi(sys_connect), %g1 - ldswa [%o1 + 0x8] %asi, %o2 +8: ldswa [%o1 + 0x8] %asi, %o2 jmpl %g1 + %lo(sys_connect), %g0 - lduwa [%o1 + 0x4] %asi, %o1 +9: lduwa [%o1 + 0x4] %asi, %o1 nop nop nop do_sys_listen: /* sys_listen(int, int) */ - ldswa [%o1 + 0x0] %asi, %o0 +10: ldswa [%o1 + 0x0] %asi, %o0 sethi %hi(sys_listen), %g1 jmpl %g1 + %lo(sys_listen), %g0 - ldswa [%o1 + 0x4] %asi, %o1 +11: ldswa [%o1 + 0x4] %asi, %o1 nop nop nop nop do_sys_accept: /* sys_accept(int, struct sockaddr *, int *) */ - ldswa [%o1 + 0x0] %asi, %o0 +12: ldswa [%o1 + 0x0] %asi, %o0 sethi %hi(sys_accept), %g1 - lduwa [%o1 + 0x8] %asi, %o2 +13: lduwa [%o1 + 0x8] %asi, %o2 jmpl %g1 + %lo(sys_accept), %g0 - lduwa [%o1 + 0x4] %asi, %o1 +14: lduwa [%o1 + 0x4] %asi, %o1 nop nop nop do_sys_getsockname: /* sys_getsockname(int, struct sockaddr *, int *) */ - ldswa [%o1 + 0x0] %asi, %o0 +15: ldswa [%o1 + 0x0] %asi, %o0 sethi %hi(sys_getsockname), %g1 - lduwa [%o1 + 0x8] %asi, %o2 +16: lduwa [%o1 + 0x8] %asi, %o2 jmpl %g1 + %lo(sys_getsockname), %g0 - lduwa [%o1 + 0x4] %asi, %o1 +17: lduwa [%o1 + 0x4] %asi, %o1 nop nop nop do_sys_getpeername: /* sys_getpeername(int, struct sockaddr *, int *) */ - ldswa [%o1 + 0x0] %asi, %o0 +18: ldswa [%o1 + 0x0] %asi, %o0 sethi %hi(sys_getpeername), %g1 - lduwa [%o1 + 0x8] %asi, %o2 +19: lduwa [%o1 + 0x8] %asi, %o2 jmpl %g1 + %lo(sys_getpeername), %g0 - lduwa [%o1 + 0x4] %asi, %o1 +20: lduwa [%o1 + 0x4] %asi, %o1 nop nop nop do_sys_socketpair: /* sys_socketpair(int, int, int, int *) */ - ldswa [%o1 + 0x0] %asi, %o0 +21: ldswa [%o1 + 0x0] %asi, %o0 sethi %hi(sys_socketpair), %g1 - ldswa [%o1 + 0x8] %asi, %o2 - lduwa [%o1 + 0xc] %asi, %o3 +22: ldswa [%o1 + 0x8] %asi, %o2 +23: lduwa [%o1 + 0xc] %asi, %o3 jmpl %g1 + %lo(sys_socketpair), %g0 - ldswa [%o1 + 0x4] %asi, %o1 +24: ldswa [%o1 + 0x4] %asi, %o1 nop nop do_sys_send: /* sys_send(int, void *, size_t, unsigned int) */ - ldswa [%o1 + 0x0] %asi, %o0 +25: ldswa [%o1 + 0x0] %asi, %o0 sethi %hi(sys_send), %g1 - lduwa [%o1 + 0x8] %asi, %o2 - lduwa [%o1 + 0xc] %asi, %o3 +26: lduwa [%o1 + 0x8] %asi, %o2 +27: lduwa [%o1 + 0xc] %asi, %o3 jmpl %g1 + %lo(sys_send), %g0 - lduwa [%o1 + 0x4] %asi, %o1 +28: lduwa [%o1 + 0x4] %asi, %o1 nop nop do_sys_recv: /* sys_recv(int, void *, size_t, unsigned int) */ - ldswa [%o1 + 0x0] %asi, %o0 +29: ldswa [%o1 + 0x0] %asi, %o0 sethi %hi(sys_recv), %g1 - lduwa [%o1 + 0x8] %asi, %o2 - lduwa [%o1 + 0xc] %asi, %o3 +30: lduwa [%o1 + 0x8] %asi, %o2 +31: lduwa [%o1 + 0xc] %asi, %o3 jmpl %g1 + %lo(sys_recv), %g0 - lduwa [%o1 + 0x4] %asi, %o1 +32: lduwa [%o1 + 0x4] %asi, %o1 nop nop do_sys_sendto: /* sys_sendto(int, u32, compat_size_t, unsigned int, u32, int) */ - ldswa [%o1 + 0x0] %asi, %o0 +33: ldswa [%o1 + 0x0] %asi, %o0 sethi %hi(sys_sendto), %g1 - lduwa [%o1 + 0x8] %asi, %o2 - lduwa [%o1 + 0xc] %asi, %o3 - lduwa [%o1 + 0x10] %asi, %o4 - ldswa [%o1 + 0x14] %asi, %o5 +34: lduwa [%o1 + 0x8] %asi, %o2 +35: lduwa [%o1 + 0xc] %asi, %o3 +36: lduwa [%o1 + 0x10] %asi, %o4 +37: ldswa [%o1 + 0x14] %asi, %o5 jmpl %g1 + %lo(sys_sendto), %g0 - lduwa [%o1 + 0x4] %asi, %o1 +38: lduwa [%o1 + 0x4] %asi, %o1 do_sys_recvfrom: /* sys_recvfrom(int, u32, compat_size_t, unsigned int, u32, u32) */ - ldswa [%o1 + 0x0] %asi, %o0 +39: ldswa [%o1 + 0x0] %asi, %o0 sethi %hi(sys_recvfrom), %g1 - lduwa [%o1 + 0x8] %asi, %o2 - lduwa [%o1 + 0xc] %asi, %o3 - lduwa [%o1 + 0x10] %asi, %o4 - lduwa [%o1 + 0x14] %asi, %o5 +40: lduwa [%o1 + 0x8] %asi, %o2 +41: lduwa [%o1 + 0xc] %asi, %o3 +42: lduwa [%o1 + 0x10] %asi, %o4 +43: lduwa [%o1 + 0x14] %asi, %o5 jmpl %g1 + %lo(sys_recvfrom), %g0 - lduwa [%o1 + 0x4] %asi, %o1 +44: lduwa [%o1 + 0x4] %asi, %o1 do_sys_shutdown: /* sys_shutdown(int, int) */ - ldswa [%o1 + 0x0] %asi, %o0 +45: ldswa [%o1 + 0x0] %asi, %o0 sethi %hi(sys_shutdown), %g1 jmpl %g1 + %lo(sys_shutdown), %g0 - ldswa [%o1 + 0x4] %asi, %o1 +46: ldswa [%o1 + 0x4] %asi, %o1 nop nop nop nop do_sys_setsockopt: /* compat_sys_setsockopt(int, int, int, char *, int) */ - ldswa [%o1 + 0x0] %asi, %o0 +47: ldswa [%o1 + 0x0] %asi, %o0 sethi %hi(compat_sys_setsockopt), %g1 - ldswa [%o1 + 0x8] %asi, %o2 - lduwa [%o1 + 0xc] %asi, %o3 - ldswa [%o1 + 0x10] %asi, %o4 +48: ldswa [%o1 + 0x8] %asi, %o2 +49: lduwa [%o1 + 0xc] %asi, %o3 +50: ldswa [%o1 + 0x10] %asi, %o4 jmpl %g1 + %lo(compat_sys_setsockopt), %g0 - ldswa [%o1 + 0x4] %asi, %o1 +51: ldswa [%o1 + 0x4] %asi, %o1 nop do_sys_getsockopt: /* compat_sys_getsockopt(int, int, int, u32, u32) */ - ldswa [%o1 + 0x0] %asi, %o0 +52: ldswa [%o1 + 0x0] %asi, %o0 sethi %hi(compat_sys_getsockopt), %g1 - ldswa [%o1 + 0x8] %asi, %o2 - lduwa [%o1 + 0xc] %asi, %o3 - lduwa [%o1 + 0x10] %asi, %o4 +53: ldswa [%o1 + 0x8] %asi, %o2 +54: lduwa [%o1 + 0xc] %asi, %o3 +55: lduwa [%o1 + 0x10] %asi, %o4 jmpl %g1 + %lo(compat_sys_getsockopt), %g0 - ldswa [%o1 + 0x4] %asi, %o1 +56: ldswa [%o1 + 0x4] %asi, %o1 nop do_sys_sendmsg: /* compat_sys_sendmsg(int, struct compat_msghdr *, unsigned int) */ - ldswa [%o1 + 0x0] %asi, %o0 +57: ldswa [%o1 + 0x0] %asi, %o0 sethi %hi(compat_sys_sendmsg), %g1 - lduwa [%o1 + 0x8] %asi, %o2 +58: lduwa [%o1 + 0x8] %asi, %o2 jmpl %g1 + %lo(compat_sys_sendmsg), %g0 - lduwa [%o1 + 0x4] %asi, %o1 +59: lduwa [%o1 + 0x4] %asi, %o1 nop nop nop do_sys_recvmsg: /* compat_sys_recvmsg(int, struct compat_msghdr *, unsigned int) */ - ldswa [%o1 + 0x0] %asi, %o0 +60: ldswa [%o1 + 0x0] %asi, %o0 sethi %hi(compat_sys_recvmsg), %g1 - lduwa [%o1 + 0x8] %asi, %o2 +61: lduwa [%o1 + 0x8] %asi, %o2 jmpl %g1 + %lo(compat_sys_recvmsg), %g0 - lduwa [%o1 + 0x4] %asi, %o1 +62: lduwa [%o1 + 0x4] %asi, %o1 nop nop nop -__socketcall_table_end: do_einval: retl @@ -325,5 +325,20 @@ do_efault: .section __ex_table .align 4 - .word __socketcall_table_begin, 0, __socketcall_table_end, do_efault + .word 1b, do_efault, 2b, do_efault, 3b, do_efault, 4b, do_efault + .word 5b, do_efault, 6b, do_efault, 7b, do_efault, 8b, do_efault + .word 9b, do_efault, 10b, do_efault, 11b, do_efault, 12b, do_efault + .word 13b, do_efault, 14b, do_efault, 15b, do_efault, 16b, do_efault + .word 17b, do_efault, 18b, do_efault, 19b, do_efault, 20b, do_efault + .word 21b, do_efault, 22b, do_efault, 23b, do_efault, 24b, do_efault + .word 25b, do_efault, 26b, do_efault, 27b, do_efault, 28b, do_efault + .word 29b, do_efault, 30b, do_efault, 31b, do_efault, 32b, do_efault + .word 33b, do_efault, 34b, do_efault, 35b, do_efault, 36b, do_efault + .word 37b, do_efault, 38b, do_efault, 39b, do_efault, 40b, do_efault + .word 41b, do_efault, 42b, do_efault, 43b, do_efault, 44b, do_efault + .word 45b, do_efault, 46b, do_efault, 47b, do_efault, 48b, do_efault + .word 49b, do_efault, 50b, do_efault, 51b, do_efault, 52b, do_efault + .word 53b, do_efault, 54b, do_efault, 55b, do_efault, 56b, do_efault + .word 57b, do_efault, 58b, do_efault, 59b, do_efault, 60b, do_efault + .word 61b, do_efault, 62b, do_efault .previous diff --git a/arch/sparc64/kernel/traps.c b/arch/sparc64/kernel/traps.c index f8e7005fede9..1aa15990f5af 100644 --- a/arch/sparc64/kernel/traps.c +++ b/arch/sparc64/kernel/traps.c @@ -189,19 +189,18 @@ void spitfire_data_access_exception(struct pt_regs *regs, unsigned long sfsr, un if (regs->tstate & TSTATE_PRIV) { /* Test if this comes from uaccess places. */ - unsigned long fixup; - unsigned long g2 = regs->u_regs[UREG_G2]; + const struct exception_table_entry *entry; - if ((fixup = search_extables_range(regs->tpc, &g2))) { - /* Ouch, somebody is trying ugly VM hole tricks on us... */ + entry = search_exception_tables(regs->tpc); + if (entry) { + /* Ouch, somebody is trying VM hole tricks on us... */ #ifdef DEBUG_EXCEPTIONS printk("Exception: PC<%016lx> faddr\n", regs->tpc); - printk("EX_TABLE: insn<%016lx> fixup<%016lx> " - "g2<%016lx>\n", regs->tpc, fixup, g2); + printk("EX_TABLE: insn<%016lx> fixup<%016lx>\n", + regs->tpc, entry->fixup); #endif - regs->tpc = fixup; + regs->tpc = entry->fixup; regs->tnpc = regs->tpc + 4; - regs->u_regs[UREG_G2] = g2; return; } /* Shit... */ @@ -1610,10 +1609,10 @@ void cheetah_deferred_handler(struct pt_regs *regs, unsigned long afsr, unsigned /* OK, usermode access. */ recoverable = 1; } else { - unsigned long g2 = regs->u_regs[UREG_G2]; - unsigned long fixup = search_extables_range(regs->tpc, &g2); + const struct exception_table_entry *entry; - if (fixup != 0UL) { + entry = search_exception_tables(regs->tpc); + if (entry) { /* OK, kernel access to userspace. */ recoverable = 1; @@ -1632,9 +1631,8 @@ void cheetah_deferred_handler(struct pt_regs *regs, unsigned long afsr, unsigned * recoverable condition. */ if (recoverable) { - regs->tpc = fixup; + regs->tpc = entry->fixup; regs->tnpc = regs->tpc + 4; - regs->u_regs[UREG_G2] = g2; } } } diff --git a/arch/sparc64/kernel/unaligned.c b/arch/sparc64/kernel/unaligned.c index 02af08ffec8f..9d6be20f4125 100644 --- a/arch/sparc64/kernel/unaligned.c +++ b/arch/sparc64/kernel/unaligned.c @@ -246,10 +246,10 @@ void kernel_mna_trap_fault(void) { struct pt_regs *regs = current_thread_info()->kern_una_regs; unsigned int insn = current_thread_info()->kern_una_insn; - unsigned long g2 = regs->u_regs[UREG_G2]; - unsigned long fixup = search_extables_range(regs->tpc, &g2); + const struct exception_table_entry *entry; - if (!fixup) { + entry = search_exception_tables(regs->tpc); + if (!entry) { unsigned long address; address = compute_effective_address(regs, insn, @@ -270,9 +270,8 @@ void kernel_mna_trap_fault(void) die_if_kernel("Oops", regs); /* Not reached */ } - regs->tpc = fixup; + regs->tpc = entry->fixup; regs->tnpc = regs->tpc + 4; - regs->u_regs [UREG_G2] = g2; regs->tstate &= ~TSTATE_ASI; regs->tstate |= (ASI_AIUS << 24UL); diff --git a/arch/sparc64/mm/Makefile b/arch/sparc64/mm/Makefile index cda87333a77b..9d0960e69f48 100644 --- a/arch/sparc64/mm/Makefile +++ b/arch/sparc64/mm/Makefile @@ -5,6 +5,6 @@ EXTRA_AFLAGS := -ansi EXTRA_CFLAGS := -Werror -obj-y := ultra.o tlb.o fault.o init.o generic.o extable.o +obj-y := ultra.o tlb.o fault.o init.o generic.o obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o diff --git a/arch/sparc64/mm/extable.c b/arch/sparc64/mm/extable.c deleted file mode 100644 index ec334297ff4f..000000000000 --- a/arch/sparc64/mm/extable.c +++ /dev/null @@ -1,80 +0,0 @@ -/* - * linux/arch/sparc64/mm/extable.c - */ - -#include -#include -#include - -extern const struct exception_table_entry __start___ex_table[]; -extern const struct exception_table_entry __stop___ex_table[]; - -void sort_extable(struct exception_table_entry *start, - struct exception_table_entry *finish) -{ -} - -/* Caller knows they are in a range if ret->fixup == 0 */ -const struct exception_table_entry * -search_extable(const struct exception_table_entry *start, - const struct exception_table_entry *last, - unsigned long value) -{ - const struct exception_table_entry *walk; - - /* Single insn entries are encoded as: - * word 1: insn address - * word 2: fixup code address - * - * Range entries are encoded as: - * word 1: first insn address - * word 2: 0 - * word 3: last insn address + 4 bytes - * word 4: fixup code address - * - * See asm/uaccess.h for more details. - */ - - /* 1. Try to find an exact match. */ - for (walk = start; walk <= last; walk++) { - if (walk->fixup == 0) { - /* A range entry, skip both parts. */ - walk++; - continue; - } - - if (walk->insn == value) - return walk; - } - - /* 2. Try to find a range match. */ - for (walk = start; walk <= (last - 1); walk++) { - if (walk->fixup) - continue; - - if (walk[0].insn <= value && walk[1].insn > value) - return walk; - - walk++; - } - - return NULL; -} - -/* Special extable search, which handles ranges. Returns fixup */ -unsigned long search_extables_range(unsigned long addr, unsigned long *g2) -{ - const struct exception_table_entry *entry; - - entry = search_exception_tables(addr); - if (!entry) - return 0; - - /* Inside range? Fix g2 and return correct fixup */ - if (!entry->fixup) { - *g2 = (addr - entry->insn) / 4; - return (entry + 1)->fixup; - } - - return entry->fixup; -} diff --git a/arch/sparc64/mm/fault.c b/arch/sparc64/mm/fault.c index db1e3310e907..59dc9a2ece5a 100644 --- a/arch/sparc64/mm/fault.c +++ b/arch/sparc64/mm/fault.c @@ -242,7 +242,6 @@ static unsigned int get_fault_insn(struct pt_regs *regs, unsigned int insn) static void do_kernel_fault(struct pt_regs *regs, int si_code, int fault_code, unsigned int insn, unsigned long address) { - unsigned long g2; unsigned char asi = ASI_P; if ((!insn) && (regs->tstate & TSTATE_PRIV)) @@ -273,11 +272,9 @@ static void do_kernel_fault(struct pt_regs *regs, int si_code, int fault_code, } } - g2 = regs->u_regs[UREG_G2]; - /* Is this in ex_table? */ if (regs->tstate & TSTATE_PRIV) { - unsigned long fixup; + const struct exception_table_entry *entry; if (asi == ASI_P && (insn & 0xc0800000) == 0xc0800000) { if (insn & 0x2000) @@ -288,10 +285,9 @@ static void do_kernel_fault(struct pt_regs *regs, int si_code, int fault_code, /* Look in asi.h: All _S asis have LS bit set */ if ((asi & 0x1) && - (fixup = search_extables_range(regs->tpc, &g2))) { - regs->tpc = fixup; + (entry = search_exception_tables(regs->tpc))) { + regs->tpc = entry->fixup; regs->tnpc = regs->tpc + 4; - regs->u_regs[UREG_G2] = g2; return; } } else { diff --git a/include/asm-sparc64/uaccess.h b/include/asm-sparc64/uaccess.h index 80a65d7e3dbf..c099aa339784 100644 --- a/include/asm-sparc64/uaccess.h +++ b/include/asm-sparc64/uaccess.h @@ -70,25 +70,12 @@ static inline int access_ok(int type, const void __user * addr, unsigned long si * with the main instruction path. This means when everything is well, * we don't even have to jump over them. Further, they do not intrude * on our cache or tlb entries. - * - * There is a special way how to put a range of potentially faulting - * insns (like twenty ldd/std's with now intervening other instructions) - * You specify address of first in insn and 0 in fixup and in the next - * exception_table_entry you specify last potentially faulting insn + 1 - * and in fixup the routine which should handle the fault. - * That fixup code will get - * (faulting_insn_address - first_insn_in_the_range_address)/4 - * in %g2 (ie. index of the faulting instruction in the range). */ -struct exception_table_entry -{ - unsigned insn, fixup; +struct exception_table_entry { + unsigned int insn, fixup; }; -/* Special exable search, which handles ranges. Returns fixup */ -unsigned long search_extables_range(unsigned long addr, unsigned long *g2); - extern void __ret_efault(void); /* Uh, these should become the main single-value transfer routines.. From 5fd29752f09cabff582f65c0ce35518db4c64937 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 28 Sep 2005 20:41:45 -0700 Subject: [PATCH 224/352] [SPARC64]: Fix fault handling in unaligned trap handler. We were not calling kernel_mna_trap_fault() correctly. Instead of being fancy, just return 0 vs. -EFAULT from the assembler stubs, and handle that return value as appropriate. Create an "__retl_efault" stub for assembler exception table entries and use it where possible. Signed-off-by: David S. Miller --- arch/sparc64/kernel/head.S | 7 ++- arch/sparc64/kernel/sys32.S | 57 ++++++++++++++---------- arch/sparc64/kernel/una_asm.S | 65 +++++++++++++--------------- arch/sparc64/kernel/unaligned.c | 36 ++++++++------- arch/sparc64/lib/strncpy_from_user.S | 16 +++---- include/asm-sparc64/uaccess.h | 1 + 6 files changed, 95 insertions(+), 87 deletions(-) diff --git a/arch/sparc64/kernel/head.S b/arch/sparc64/kernel/head.S index ecc748fb9ad7..89406f9649a9 100644 --- a/arch/sparc64/kernel/head.S +++ b/arch/sparc64/kernel/head.S @@ -540,8 +540,11 @@ bootup_user_stack_end: prom_tba: .xword 0 tlb_type: .word 0 /* Must NOT end up in BSS */ .section ".fixup",#alloc,#execinstr - .globl __ret_efault + + .globl __ret_efault, __retl_efault __ret_efault: ret restore %g0, -EFAULT, %o0 - +__retl_efault: + retl + mov -EFAULT, %o0 diff --git a/arch/sparc64/kernel/sys32.S b/arch/sparc64/kernel/sys32.S index 4fb99e0bc7c3..9cd272ac3ac1 100644 --- a/arch/sparc64/kernel/sys32.S +++ b/arch/sparc64/kernel/sys32.S @@ -157,6 +157,9 @@ sys32_socketcall: /* %o0=call, %o1=args */ or %g2, %lo(__socketcall_table_begin), %g2 jmpl %g2 + %o0, %g0 nop +do_einval: + retl + mov -EINVAL, %o0 .align 32 __socketcall_table_begin: @@ -316,29 +319,37 @@ do_sys_recvmsg: /* compat_sys_recvmsg(int, struct compat_msghdr *, unsigned int) nop nop -do_einval: - retl - mov -EINVAL, %o0 -do_efault: - retl - mov -EFAULT, %o0 - .section __ex_table .align 4 - .word 1b, do_efault, 2b, do_efault, 3b, do_efault, 4b, do_efault - .word 5b, do_efault, 6b, do_efault, 7b, do_efault, 8b, do_efault - .word 9b, do_efault, 10b, do_efault, 11b, do_efault, 12b, do_efault - .word 13b, do_efault, 14b, do_efault, 15b, do_efault, 16b, do_efault - .word 17b, do_efault, 18b, do_efault, 19b, do_efault, 20b, do_efault - .word 21b, do_efault, 22b, do_efault, 23b, do_efault, 24b, do_efault - .word 25b, do_efault, 26b, do_efault, 27b, do_efault, 28b, do_efault - .word 29b, do_efault, 30b, do_efault, 31b, do_efault, 32b, do_efault - .word 33b, do_efault, 34b, do_efault, 35b, do_efault, 36b, do_efault - .word 37b, do_efault, 38b, do_efault, 39b, do_efault, 40b, do_efault - .word 41b, do_efault, 42b, do_efault, 43b, do_efault, 44b, do_efault - .word 45b, do_efault, 46b, do_efault, 47b, do_efault, 48b, do_efault - .word 49b, do_efault, 50b, do_efault, 51b, do_efault, 52b, do_efault - .word 53b, do_efault, 54b, do_efault, 55b, do_efault, 56b, do_efault - .word 57b, do_efault, 58b, do_efault, 59b, do_efault, 60b, do_efault - .word 61b, do_efault, 62b, do_efault + .word 1b, __retl_efault, 2b, __retl_efault + .word 3b, __retl_efault, 4b, __retl_efault + .word 5b, __retl_efault, 6b, __retl_efault + .word 7b, __retl_efault, 8b, __retl_efault + .word 9b, __retl_efault, 10b, __retl_efault + .word 11b, __retl_efault, 12b, __retl_efault + .word 13b, __retl_efault, 14b, __retl_efault + .word 15b, __retl_efault, 16b, __retl_efault + .word 17b, __retl_efault, 18b, __retl_efault + .word 19b, __retl_efault, 20b, __retl_efault + .word 21b, __retl_efault, 22b, __retl_efault + .word 23b, __retl_efault, 24b, __retl_efault + .word 25b, __retl_efault, 26b, __retl_efault + .word 27b, __retl_efault, 28b, __retl_efault + .word 29b, __retl_efault, 30b, __retl_efault + .word 31b, __retl_efault, 32b, __retl_efault + .word 33b, __retl_efault, 34b, __retl_efault + .word 35b, __retl_efault, 36b, __retl_efault + .word 37b, __retl_efault, 38b, __retl_efault + .word 39b, __retl_efault, 40b, __retl_efault + .word 41b, __retl_efault, 42b, __retl_efault + .word 43b, __retl_efault, 44b, __retl_efault + .word 45b, __retl_efault, 46b, __retl_efault + .word 47b, __retl_efault, 48b, __retl_efault + .word 49b, __retl_efault, 50b, __retl_efault + .word 51b, __retl_efault, 52b, __retl_efault + .word 53b, __retl_efault, 54b, __retl_efault + .word 55b, __retl_efault, 56b, __retl_efault + .word 57b, __retl_efault, 58b, __retl_efault + .word 59b, __retl_efault, 60b, __retl_efault + .word 61b, __retl_efault, 62b, __retl_efault .previous diff --git a/arch/sparc64/kernel/una_asm.S b/arch/sparc64/kernel/una_asm.S index da48400bcc95..1f5b5b708ce7 100644 --- a/arch/sparc64/kernel/una_asm.S +++ b/arch/sparc64/kernel/una_asm.S @@ -6,13 +6,6 @@ .text -kernel_unaligned_trap_fault: - call kernel_mna_trap_fault - nop - retl - nop - .size kern_unaligned_trap_fault, .-kern_unaligned_trap_fault - .globl __do_int_store __do_int_store: rd %asi, %o4 @@ -51,24 +44,24 @@ __do_int_store: 0: wr %o4, 0x0, %asi retl - nop + mov 0, %o0 .size __do_int_store, .-__do_int_store .section __ex_table - .word 4b, kernel_unaligned_trap_fault - .word 5b, kernel_unaligned_trap_fault - .word 6b, kernel_unaligned_trap_fault - .word 7b, kernel_unaligned_trap_fault - .word 8b, kernel_unaligned_trap_fault - .word 9b, kernel_unaligned_trap_fault - .word 10b, kernel_unaligned_trap_fault - .word 11b, kernel_unaligned_trap_fault - .word 12b, kernel_unaligned_trap_fault - .word 13b, kernel_unaligned_trap_fault - .word 14b, kernel_unaligned_trap_fault - .word 15b, kernel_unaligned_trap_fault - .word 16b, kernel_unaligned_trap_fault - .word 17b, kernel_unaligned_trap_fault + .word 4b, __retl_efault + .word 5b, __retl_efault + .word 6b, __retl_efault + .word 7b, __retl_efault + .word 8b, __retl_efault + .word 9b, __retl_efault + .word 10b, __retl_efault + .word 11b, __retl_efault + .word 12b, __retl_efault + .word 13b, __retl_efault + .word 14b, __retl_efault + .word 15b, __retl_efault + .word 16b, __retl_efault + .word 17b, __retl_efault .previous .globl do_int_load @@ -133,21 +126,21 @@ do_int_load: 0: wr %o5, 0x0, %asi retl - nop + mov 0, %o0 .size __do_int_load, .-__do_int_load .section __ex_table - .word 4b, kernel_unaligned_trap_fault - .word 5b, kernel_unaligned_trap_fault - .word 6b, kernel_unaligned_trap_fault - .word 7b, kernel_unaligned_trap_fault - .word 8b, kernel_unaligned_trap_fault - .word 9b, kernel_unaligned_trap_fault - .word 10b, kernel_unaligned_trap_fault - .word 11b, kernel_unaligned_trap_fault - .word 12b, kernel_unaligned_trap_fault - .word 13b, kernel_unaligned_trap_fault - .word 14b, kernel_unaligned_trap_fault - .word 15b, kernel_unaligned_trap_fault - .word 16b, kernel_unaligned_trap_fault + .word 4b, __retl_efault + .word 5b, __retl_efault + .word 6b, __retl_efault + .word 7b, __retl_efault + .word 8b, __retl_efault + .word 9b, __retl_efault + .word 10b, __retl_efault + .word 11b, __retl_efault + .word 12b, __retl_efault + .word 13b, __retl_efault + .word 14b, __retl_efault + .word 15b, __retl_efault + .word 16b, __retl_efault .previous diff --git a/arch/sparc64/kernel/unaligned.c b/arch/sparc64/kernel/unaligned.c index 9d6be20f4125..70faf630603b 100644 --- a/arch/sparc64/kernel/unaligned.c +++ b/arch/sparc64/kernel/unaligned.c @@ -180,14 +180,14 @@ static void __attribute_used__ unaligned_panic(char *str, struct pt_regs *regs) die_if_kernel(str, regs); } -extern void do_int_load(unsigned long *dest_reg, int size, - unsigned long *saddr, int is_signed, int asi); +extern int do_int_load(unsigned long *dest_reg, int size, + unsigned long *saddr, int is_signed, int asi); -extern void __do_int_store(unsigned long *dst_addr, int size, - unsigned long src_val, int asi); +extern int __do_int_store(unsigned long *dst_addr, int size, + unsigned long src_val, int asi); -static inline void do_int_store(int reg_num, int size, unsigned long *dst_addr, - struct pt_regs *regs, int asi, int orig_asi) +static inline int do_int_store(int reg_num, int size, unsigned long *dst_addr, + struct pt_regs *regs, int asi, int orig_asi) { unsigned long zero = 0; unsigned long *src_val_p = &zero; @@ -219,7 +219,7 @@ static inline void do_int_store(int reg_num, int size, unsigned long *dst_addr, break; }; } - __do_int_store(dst_addr, size, src_val, asi); + return __do_int_store(dst_addr, size, src_val, asi); } static inline void advance(struct pt_regs *regs) @@ -242,7 +242,7 @@ static inline int ok_for_kernel(unsigned int insn) return !floating_point_load_or_store_p(insn); } -void kernel_mna_trap_fault(void) +static void kernel_mna_trap_fault(void) { struct pt_regs *regs = current_thread_info()->kern_una_regs; unsigned int insn = current_thread_info()->kern_una_insn; @@ -294,7 +294,7 @@ asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn, u kernel_mna_trap_fault(); } else { unsigned long addr, *reg_addr; - int orig_asi, asi; + int orig_asi, asi, err; addr = compute_effective_address(regs, insn, ((insn >> 25) & 0x1f)); @@ -319,9 +319,10 @@ asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn, u switch (dir) { case load: reg_addr = fetch_reg_addr(((insn>>25)&0x1f), regs); - do_int_load(reg_addr, size, (unsigned long *) addr, - decode_signedness(insn), asi); - if (unlikely(asi != orig_asi)) { + err = do_int_load(reg_addr, size, + (unsigned long *) addr, + decode_signedness(insn), asi); + if (likely(!err) && unlikely(asi != orig_asi)) { unsigned long val_in = *reg_addr; switch (size) { case 2: @@ -343,16 +344,19 @@ asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn, u break; case store: - do_int_store(((insn>>25)&0x1f), size, - (unsigned long *) addr, regs, - asi, orig_asi); + err = do_int_store(((insn>>25)&0x1f), size, + (unsigned long *) addr, regs, + asi, orig_asi); break; default: panic("Impossible kernel unaligned trap."); /* Not reached... */ } - advance(regs); + if (unlikely(err)) + kernel_mna_trap_fault(); + else + advance(regs); } } diff --git a/arch/sparc64/lib/strncpy_from_user.S b/arch/sparc64/lib/strncpy_from_user.S index 09cbbaa0ebf4..e1264650ca7a 100644 --- a/arch/sparc64/lib/strncpy_from_user.S +++ b/arch/sparc64/lib/strncpy_from_user.S @@ -125,15 +125,11 @@ __strncpy_from_user: add %o2, %o3, %o0 .size __strncpy_from_user, .-__strncpy_from_user - .section .fixup,#alloc,#execinstr - .align 4 -4: retl - mov -EFAULT, %o0 - .section __ex_table,#alloc .align 4 - .word 60b, 4b - .word 61b, 4b - .word 62b, 4b - .word 63b, 4b - .word 64b, 4b + .word 60b, __retl_efault + .word 61b, __retl_efault + .word 62b, __retl_efault + .word 63b, __retl_efault + .word 64b, __retl_efault + .previous diff --git a/include/asm-sparc64/uaccess.h b/include/asm-sparc64/uaccess.h index c099aa339784..bc8ddbb1cbed 100644 --- a/include/asm-sparc64/uaccess.h +++ b/include/asm-sparc64/uaccess.h @@ -77,6 +77,7 @@ struct exception_table_entry { }; extern void __ret_efault(void); +extern void __retl_efault(void); /* Uh, these should become the main single-value transfer routines.. * They automatically use the right size if we just have the right From efdc1e2083e04cc70721d55803889b346c1a3de2 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 28 Sep 2005 21:06:47 -0700 Subject: [PATCH 225/352] [SPARC64]: Simplify user fault fixup handling. Instead of doing byte-at-a-time user accesses to figure out where the fault occurred, read the saved fault_address from the current thread structure. For the sake of defensive programming, if the fault_address does not fall into the user buffer range, simply assume the whole area faulted. This will cause the fixup for copy_from_user() to clear the entire kernel side buffer. Signed-off-by: David S. Miller --- arch/sparc64/lib/user_fixup.c | 65 ++++++++++++++++------------------- arch/sparc64/mm/fault.c | 10 ++---- include/asm-sparc64/uaccess.h | 6 ++-- 3 files changed, 35 insertions(+), 46 deletions(-) diff --git a/arch/sparc64/lib/user_fixup.c b/arch/sparc64/lib/user_fixup.c index 0278e34125db..19d1fdb17d0e 100644 --- a/arch/sparc64/lib/user_fixup.c +++ b/arch/sparc64/lib/user_fixup.c @@ -11,61 +11,56 @@ /* Calculating the exact fault address when using * block loads and stores can be very complicated. + * * Instead of trying to be clever and handling all * of the cases, just fix things up simply here. */ +static unsigned long compute_size(unsigned long start, unsigned long size, unsigned long *offset) +{ + unsigned long fault_addr = current_thread_info()->fault_address; + unsigned long end = start + size; + + if (fault_addr < start || fault_addr >= end) { + *offset = 0; + } else { + *offset = start - fault_addr; + size = end - fault_addr; + } + return size; +} + unsigned long copy_from_user_fixup(void *to, const void __user *from, unsigned long size) { - char *dst = to; - const char __user *src = from; + unsigned long offset; - while (size) { - if (__get_user(*dst, src)) - break; - dst++; - src++; - size--; - } - - if (size) - memset(dst, 0, size); + size = compute_size((unsigned long) from, size, &offset); + if (likely(size)) + memset(to + offset, 0, size); return size; } unsigned long copy_to_user_fixup(void __user *to, const void *from, unsigned long size) { - char __user *dst = to; - const char *src = from; + unsigned long offset; - while (size) { - if (__put_user(*src, dst)) - break; - dst++; - src++; - size--; - } - - return size; + return compute_size((unsigned long) to, size, &offset); } unsigned long copy_in_user_fixup(void __user *to, void __user *from, unsigned long size) { - char __user *dst = to; - char __user *src = from; + unsigned long fault_addr = current_thread_info()->fault_address; + unsigned long start = (unsigned long) to; + unsigned long end = start + size; - while (size) { - char tmp; + if (fault_addr >= start && fault_addr < end) + return end - fault_addr; - if (__get_user(tmp, src)) - break; - if (__put_user(tmp, dst)) - break; - dst++; - src++; - size--; - } + start = (unsigned long) from; + end = start + size; + if (fault_addr >= start && fault_addr < end) + return end - fault_addr; return size; } diff --git a/arch/sparc64/mm/fault.c b/arch/sparc64/mm/fault.c index 59dc9a2ece5a..4a52e79d515f 100644 --- a/arch/sparc64/mm/fault.c +++ b/arch/sparc64/mm/fault.c @@ -457,7 +457,7 @@ good_area: } up_read(&mm->mmap_sem); - goto fault_done; + return; /* * Something tried to access memory that isn't in our memory map.. @@ -469,8 +469,7 @@ bad_area: handle_kernel_fault: do_kernel_fault(regs, si_code, fault_code, insn, address); - - goto fault_done; + return; /* * We ran out of memory, or some other thing happened to us that made @@ -501,9 +500,4 @@ do_sigbus: /* Kernel mode? Handle exceptions or die */ if (regs->tstate & TSTATE_PRIV) goto handle_kernel_fault; - -fault_done: - /* These values are no longer needed, clear them. */ - set_thread_fault_code(0); - current_thread_info()->fault_address = 0; } diff --git a/include/asm-sparc64/uaccess.h b/include/asm-sparc64/uaccess.h index bc8ddbb1cbed..203e8eee6351 100644 --- a/include/asm-sparc64/uaccess.h +++ b/include/asm-sparc64/uaccess.h @@ -251,7 +251,7 @@ copy_from_user(void *to, const void __user *from, unsigned long size) { unsigned long ret = ___copy_from_user(to, from, size); - if (ret) + if (unlikely(ret)) ret = copy_from_user_fixup(to, from, size); return ret; } @@ -267,7 +267,7 @@ copy_to_user(void __user *to, const void *from, unsigned long size) { unsigned long ret = ___copy_to_user(to, from, size); - if (ret) + if (unlikely(ret)) ret = copy_to_user_fixup(to, from, size); return ret; } @@ -283,7 +283,7 @@ copy_in_user(void __user *to, void __user *from, unsigned long size) { unsigned long ret = ___copy_in_user(to, from, size); - if (ret) + if (unlikely(ret)) ret = copy_in_user_fixup(to, from, size); return ret; } From 801ab3c731e77324c055769491711e620100dbfb Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 28 Sep 2005 21:31:25 -0700 Subject: [PATCH 226/352] [SPARC]: Declare paging_init() in asm/pgtable.h Signed-off-by: David S. Miller --- arch/sparc/kernel/setup.c | 2 -- arch/sparc64/kernel/setup.c | 2 -- include/asm-sparc/pgtable.h | 2 ++ include/asm-sparc64/pgtable.h | 2 ++ 4 files changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/sparc/kernel/setup.c b/arch/sparc/kernel/setup.c index 53c192a4982f..3509e4305532 100644 --- a/arch/sparc/kernel/setup.c +++ b/arch/sparc/kernel/setup.c @@ -249,8 +249,6 @@ struct tt_entry *sparc_ttable; struct pt_regs fake_swapper_regs; -extern void paging_init(void); - void __init setup_arch(char **cmdline_p) { int i; diff --git a/arch/sparc64/kernel/setup.c b/arch/sparc64/kernel/setup.c index 8e8baf2354df..516f4854955f 100644 --- a/arch/sparc64/kernel/setup.c +++ b/arch/sparc64/kernel/setup.c @@ -492,8 +492,6 @@ void register_prom_callbacks(void) "' linux-.soft2 to .soft2"); } -extern void paging_init(void); - void __init setup_arch(char **cmdline_p) { int i; diff --git a/include/asm-sparc/pgtable.h b/include/asm-sparc/pgtable.h index 8f4f6a959651..8395ad2f1c09 100644 --- a/include/asm-sparc/pgtable.h +++ b/include/asm-sparc/pgtable.h @@ -82,6 +82,8 @@ extern unsigned long page_kernel; /* Top-level page directory */ extern pgd_t swapper_pg_dir[1024]; +extern void paging_init(void); + /* Page table for 0-4MB for everybody, on the Sparc this * holds the same as on the i386. */ diff --git a/include/asm-sparc64/pgtable.h b/include/asm-sparc64/pgtable.h index 53d612aba8d5..82273c801b07 100644 --- a/include/asm-sparc64/pgtable.h +++ b/include/asm-sparc64/pgtable.h @@ -341,6 +341,8 @@ static inline void set_pte_at(struct mm_struct *mm, unsigned long addr, pte_t *p extern pgd_t swapper_pg_dir[2048]; extern pmd_t swapper_low_pmd_dir[2048]; +extern void paging_init(void); + /* These do nothing with the way I have things setup. */ #define mmu_lockarea(vaddr, len) (vaddr) #define mmu_unlockarea(vaddr, len) do { } while(0) From 0836a0eb4073c3e0a09c5965833b9dec19f5abc7 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 28 Sep 2005 21:38:08 -0700 Subject: [PATCH 227/352] [SPARC64]: Move phys_base, kern_{base,size}, and sp_banks[] init to paging_init Also, move prom_probe_memory() into arch/sparc64/mm/init.c Signed-off-by: David S. Miller --- arch/sparc64/kernel/setup.c | 19 ------------ arch/sparc64/mm/fault.c | 47 ---------------------------- arch/sparc64/mm/init.c | 62 ++++++++++++++++++++++++++++++++++++- 3 files changed, 61 insertions(+), 67 deletions(-) diff --git a/arch/sparc64/kernel/setup.c b/arch/sparc64/kernel/setup.c index 516f4854955f..4c9c8f241748 100644 --- a/arch/sparc64/kernel/setup.c +++ b/arch/sparc64/kernel/setup.c @@ -464,8 +464,6 @@ static void __init boot_flags_init(char *commands) } } -extern int prom_probe_memory(void); -extern unsigned long start, end; extern void panic_setup(char *, int *); extern unsigned short root_flags; @@ -494,8 +492,6 @@ void register_prom_callbacks(void) void __init setup_arch(char **cmdline_p) { - int i; - /* Initialize PROM console and command line. */ *cmdline_p = prom_getbootargs(); strcpy(saved_command_line, *cmdline_p); @@ -514,21 +510,6 @@ void __init setup_arch(char **cmdline_p) boot_flags_init(*cmdline_p); idprom_init(); - (void) prom_probe_memory(); - - phys_base = 0xffffffffffffffffUL; - for (i = 0; sp_banks[i].num_bytes != 0; i++) { - unsigned long top; - - if (sp_banks[i].base_addr < phys_base) - phys_base = sp_banks[i].base_addr; - top = sp_banks[i].base_addr + - sp_banks[i].num_bytes; - } - pfn_base = phys_base >> PAGE_SHIFT; - - kern_base = (prom_boot_mapping_phys_low >> 22UL) << 22UL; - kern_size = (unsigned long)&_end - (unsigned long)KERNBASE; if (!root_flags) root_mountflags &= ~MS_RDONLY; diff --git a/arch/sparc64/mm/fault.c b/arch/sparc64/mm/fault.c index 4a52e79d515f..80793d61f311 100644 --- a/arch/sparc64/mm/fault.c +++ b/arch/sparc64/mm/fault.c @@ -71,53 +71,6 @@ void set_brkpt(unsigned long addr, unsigned char mask, int flags, int mode) : "memory"); } -/* Nice, simple, prom library does all the sweating for us. ;) */ -unsigned long __init prom_probe_memory (void) -{ - register struct linux_mlist_p1275 *mlist; - register unsigned long bytes, base_paddr, tally; - register int i; - - i = 0; - mlist = *prom_meminfo()->p1275_available; - bytes = tally = mlist->num_bytes; - base_paddr = mlist->start_adr; - - sp_banks[0].base_addr = base_paddr; - sp_banks[0].num_bytes = bytes; - - while (mlist->theres_more != (void *) 0) { - i++; - mlist = mlist->theres_more; - bytes = mlist->num_bytes; - tally += bytes; - if (i >= SPARC_PHYS_BANKS-1) { - printk ("The machine has more banks than " - "this kernel can support\n" - "Increase the SPARC_PHYS_BANKS " - "setting (currently %d)\n", - SPARC_PHYS_BANKS); - i = SPARC_PHYS_BANKS-1; - break; - } - - sp_banks[i].base_addr = mlist->start_adr; - sp_banks[i].num_bytes = mlist->num_bytes; - } - - i++; - sp_banks[i].base_addr = 0xdeadbeefbeefdeadUL; - sp_banks[i].num_bytes = 0; - - /* Now mask all bank sizes on a page boundary, it is all we can - * use anyways. - */ - for (i = 0; sp_banks[i].num_bytes != 0; i++) - sp_banks[i].num_bytes &= PAGE_MASK; - - return tally; -} - static void __kprobes unhandled_fault(unsigned long address, struct task_struct *tsk, struct pt_regs *regs) diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c index 9f6ca624892d..63a7b9bafaff 100644 --- a/arch/sparc64/mm/init.c +++ b/arch/sparc64/mm/init.c @@ -1425,6 +1425,50 @@ void kernel_map_pages(struct page *page, int numpages, int enable) } #endif +static void __init prom_probe_memory(void) +{ + struct linux_mlist_p1275 *mlist; + unsigned long bytes, base_paddr, tally; + int i; + + i = 0; + mlist = *prom_meminfo()->p1275_available; + bytes = tally = mlist->num_bytes; + base_paddr = mlist->start_adr; + + sp_banks[0].base_addr = base_paddr; + sp_banks[0].num_bytes = bytes; + + while (mlist->theres_more != (void *) 0) { + i++; + mlist = mlist->theres_more; + bytes = mlist->num_bytes; + tally += bytes; + if (i >= SPARC_PHYS_BANKS-1) { + printk ("The machine has more banks than " + "this kernel can support\n" + "Increase the SPARC_PHYS_BANKS " + "setting (currently %d)\n", + SPARC_PHYS_BANKS); + i = SPARC_PHYS_BANKS-1; + break; + } + + sp_banks[i].base_addr = mlist->start_adr; + sp_banks[i].num_bytes = mlist->num_bytes; + } + + i++; + sp_banks[i].base_addr = 0xdeadbeefbeefdeadUL; + sp_banks[i].num_bytes = 0; + + /* Now mask all bank sizes on a page boundary, it is all we can + * use anyways. + */ + for (i = 0; sp_banks[i].num_bytes != 0; i++) + sp_banks[i].num_bytes &= PAGE_MASK; +} + /* paging_init() sets up the page tables */ extern void cheetah_ecache_flush_init(void); @@ -1435,7 +1479,23 @@ pgd_t swapper_pg_dir[2048]; void __init paging_init(void) { unsigned long end_pfn, pages_avail, shift; - unsigned long real_end; + unsigned long real_end, i; + + prom_probe_memory(); + + phys_base = 0xffffffffffffffffUL; + for (i = 0; sp_banks[i].num_bytes != 0; i++) { + unsigned long top; + + if (sp_banks[i].base_addr < phys_base) + phys_base = sp_banks[i].base_addr; + top = sp_banks[i].base_addr + + sp_banks[i].num_bytes; + } + pfn_base = phys_base >> PAGE_SHIFT; + + kern_base = (prom_boot_mapping_phys_low >> 22UL) << 22UL; + kern_size = (unsigned long)&_end - (unsigned long)KERNBASE; set_bit(0, mmu_context_bmap); From 10147570f9eaff3920f0c67bad7244c2eb958d4f Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 28 Sep 2005 21:46:43 -0700 Subject: [PATCH 228/352] [SPARC64]: Kill all external references to sp_banks[] Thus, we can mark sp_banks[] static in arch/sparc64/mm/init.c Signed-off-by: David S. Miller --- arch/sparc64/kernel/traps.c | 33 ++++++--------------------------- arch/sparc64/mm/fault.c | 2 -- arch/sparc64/mm/init.c | 23 ++++++++++++++++++++++- include/asm-sparc64/page.h | 17 ----------------- include/asm-sparc64/pgtable.h | 1 + 5 files changed, 29 insertions(+), 47 deletions(-) diff --git a/arch/sparc64/kernel/traps.c b/arch/sparc64/kernel/traps.c index 1aa15990f5af..eeb1e835c423 100644 --- a/arch/sparc64/kernel/traps.c +++ b/arch/sparc64/kernel/traps.c @@ -757,26 +757,12 @@ void __init cheetah_ecache_flush_init(void) ecache_flush_size = (2 * largest_size); ecache_flush_linesize = smallest_linesize; - /* Discover a physically contiguous chunk of physical - * memory in 'sp_banks' of size ecache_flush_size calculated - * above. Store the physical base of this area at - * ecache_flush_physbase. - */ - for (node = 0; ; node++) { - if (sp_banks[node].num_bytes == 0) - break; - if (sp_banks[node].num_bytes >= ecache_flush_size) { - ecache_flush_physbase = sp_banks[node].base_addr; - break; - } - } + ecache_flush_physbase = find_ecache_flush_span(ecache_flush_size); - /* Note: Zero would be a valid value of ecache_flush_physbase so - * don't use that as the success test. :-) - */ - if (sp_banks[node].num_bytes == 0) { + if (ecache_flush_physbase == ~0UL) { prom_printf("cheetah_ecache_flush_init: Cannot find %d byte " - "contiguous physical memory.\n", ecache_flush_size); + "contiguous physical memory.\n", + ecache_flush_size); prom_halt(); } @@ -1345,16 +1331,9 @@ static int cheetah_fix_ce(unsigned long physaddr) /* Return non-zero if PADDR is a valid physical memory address. */ static int cheetah_check_main_memory(unsigned long paddr) { - int i; + unsigned long vaddr = PAGE_OFFSET + paddr; - for (i = 0; ; i++) { - if (sp_banks[i].num_bytes == 0) - break; - if (paddr >= sp_banks[i].base_addr && - paddr < (sp_banks[i].base_addr + sp_banks[i].num_bytes)) - return 1; - } - return 0; + return kern_addr_valid(vaddr); } void cheetah_cee_handler(struct pt_regs *regs, unsigned long afsr, unsigned long afar) diff --git a/arch/sparc64/mm/fault.c b/arch/sparc64/mm/fault.c index 80793d61f311..31fbc67719a1 100644 --- a/arch/sparc64/mm/fault.c +++ b/arch/sparc64/mm/fault.c @@ -32,8 +32,6 @@ #define ELEMENTS(arr) (sizeof (arr)/sizeof (arr[0])) -extern struct sparc_phys_banks sp_banks[SPARC_PHYS_BANKS]; - /* * To debug kernel to catch accesses to certain virtual/physical addresses. * Mode = 0 selects physical watchpoints, mode = 1 selects virtual watchpoints. diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c index 63a7b9bafaff..48851a2e4fe1 100644 --- a/arch/sparc64/mm/init.c +++ b/arch/sparc64/mm/init.c @@ -41,7 +41,14 @@ extern void device_scan(void); -struct sparc_phys_banks sp_banks[SPARC_PHYS_BANKS]; +struct sparc_phys_banks { + unsigned long base_addr; + unsigned long num_bytes; +}; + +#define SPARC_PHYS_BANKS 32 + +static struct sparc_phys_banks sp_banks[SPARC_PHYS_BANKS]; unsigned long *sparc64_valid_addr_bitmap __read_mostly; @@ -1425,6 +1432,20 @@ void kernel_map_pages(struct page *page, int numpages, int enable) } #endif +unsigned long __init find_ecache_flush_span(unsigned long size) +{ + unsigned long i; + + for (i = 0; ; i++) { + if (sp_banks[i].num_bytes == 0) + break; + if (sp_banks[i].num_bytes >= size) + return sp_banks[i].base_addr; + } + + return ~0UL; +} + static void __init prom_probe_memory(void) { struct linux_mlist_p1275 *mlist; diff --git a/include/asm-sparc64/page.h b/include/asm-sparc64/page.h index 7f8d764abc47..5426bb28a993 100644 --- a/include/asm-sparc64/page.h +++ b/include/asm-sparc64/page.h @@ -140,23 +140,6 @@ extern unsigned long page_to_pfn(struct page *); #define virt_to_phys __pa #define phys_to_virt __va -/* The following structure is used to hold the physical - * memory configuration of the machine. This is filled in - * probe_memory() and is later used by mem_init() to set up - * mem_map[]. We statically allocate SPARC_PHYS_BANKS of - * these structs, this is arbitrary. The entry after the - * last valid one has num_bytes==0. - */ - -struct sparc_phys_banks { - unsigned long base_addr; - unsigned long num_bytes; -}; - -#define SPARC_PHYS_BANKS 32 - -extern struct sparc_phys_banks sp_banks[SPARC_PHYS_BANKS]; - #endif /* !(__ASSEMBLY__) */ #define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \ diff --git a/include/asm-sparc64/pgtable.h b/include/asm-sparc64/pgtable.h index 82273c801b07..8c6dfc6c7af6 100644 --- a/include/asm-sparc64/pgtable.h +++ b/include/asm-sparc64/pgtable.h @@ -342,6 +342,7 @@ extern pgd_t swapper_pg_dir[2048]; extern pmd_t swapper_low_pmd_dir[2048]; extern void paging_init(void); +extern unsigned long find_ecache_flush_span(unsigned long size); /* These do nothing with the way I have things setup. */ #define mmu_lockarea(vaddr, len) (vaddr) From ed3ffaf7b5e0262cb860f106a6632933671cc88f Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 28 Sep 2005 21:48:25 -0700 Subject: [PATCH 229/352] [SPARC64]: Solidify check in cheetah_check_main_memory(). Need to make sure the address is below high_memory before passing it to kern_addr_valid(). Signed-off-by: David S. Miller --- arch/sparc64/kernel/traps.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/sparc64/kernel/traps.c b/arch/sparc64/kernel/traps.c index eeb1e835c423..7f190fc57545 100644 --- a/arch/sparc64/kernel/traps.c +++ b/arch/sparc64/kernel/traps.c @@ -1333,6 +1333,9 @@ static int cheetah_check_main_memory(unsigned long paddr) { unsigned long vaddr = PAGE_OFFSET + paddr; + if (vaddr > high_memory) + return 0; + return kern_addr_valid(vaddr); } From 01d40f28b125e0a9aa0ec24642be67fc4c5dfaff Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 28 Sep 2005 22:37:53 -0700 Subject: [PATCH 230/352] [NET]: Fix reversed logic in eth_type_trans(). I got the second compare_eth_addr() test reversed, oops. Signed-off-by: David S. Miller --- net/ethernet/eth.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ethernet/eth.c b/net/ethernet/eth.c index 8b299cc82060..68a5ca866442 100644 --- a/net/ethernet/eth.c +++ b/net/ethernet/eth.c @@ -191,7 +191,7 @@ __be16 eth_type_trans(struct sk_buff *skb, struct net_device *dev) */ else if(1 /*dev->flags&IFF_PROMISC*/) { - if (unlikely(!compare_eth_addr(eth->h_dest, dev->dev_addr))) + if (unlikely(compare_eth_addr(eth->h_dest, dev->dev_addr))) skb->pkt_type = PACKET_OTHERHOST; } From ca5da7106214e03f5302ca630bd38a9145b27391 Mon Sep 17 00:00:00 2001 From: Russell King Date: Thu, 29 Sep 2005 09:44:54 +0100 Subject: [PATCH 231/352] [ARM] pxafb: Remove #if DEBUG, convert DPRINTK to pr_debug Fix warning: drivers/video/pxafb.h:119:5: warning: "DEBUG" is not defined by removing the whole #if DEBUG #define DPRINTK(fmt, args...) printk...etc... #else #define DPRINTK(fmt, args...) #endif stuff - we have pr_debug() for this. Signed-off-by: Russell King --- drivers/video/pxafb.c | 102 +++++++++++++++++++++--------------------- drivers/video/pxafb.h | 9 ---- 2 files changed, 51 insertions(+), 60 deletions(-) diff --git a/drivers/video/pxafb.c b/drivers/video/pxafb.c index 34d4dcc0320a..194eed0a238c 100644 --- a/drivers/video/pxafb.c +++ b/drivers/video/pxafb.c @@ -260,9 +260,9 @@ static int pxafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) } #ifdef CONFIG_CPU_FREQ - DPRINTK("dma period = %d ps, clock = %d kHz\n", - pxafb_display_dma_period(var), - get_clk_frequency_khz(0)); + pr_debug("pxafb: dma period = %d ps, clock = %d kHz\n", + pxafb_display_dma_period(var), + get_clk_frequency_khz(0)); #endif return 0; @@ -270,7 +270,7 @@ static int pxafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) static inline void pxafb_set_truecolor(u_int is_true_color) { - DPRINTK("true_color = %d\n", is_true_color); + pr_debug("pxafb: true_color = %d\n", is_true_color); // do your machine-specific setup if needed } @@ -284,7 +284,7 @@ static int pxafb_set_par(struct fb_info *info) struct fb_var_screeninfo *var = &info->var; unsigned long palette_mem_size; - DPRINTK("set_par\n"); + pr_debug("pxafb: set_par\n"); if (var->bits_per_pixel == 16) fbi->fb.fix.visual = FB_VISUAL_TRUECOLOR; @@ -308,7 +308,7 @@ static int pxafb_set_par(struct fb_info *info) palette_mem_size = fbi->palette_size * sizeof(u16); - DPRINTK("palette_mem_size = 0x%08lx\n", (u_long) palette_mem_size); + pr_debug("pxafb: palette_mem_size = 0x%08lx\n", palette_mem_size); fbi->palette_cpu = (u16 *)(fbi->map_cpu + PAGE_SIZE - palette_mem_size); fbi->palette_dma = fbi->map_dma + PAGE_SIZE - palette_mem_size; @@ -369,7 +369,7 @@ static int pxafb_blank(int blank, struct fb_info *info) struct pxafb_info *fbi = (struct pxafb_info *)info; int i; - DPRINTK("pxafb_blank: blank=%d\n", blank); + pr_debug("pxafb: blank=%d\n", blank); switch (blank) { case FB_BLANK_POWERDOWN: @@ -508,15 +508,15 @@ static int pxafb_activate_var(struct fb_var_screeninfo *var, struct pxafb_info * u_long flags; u_int lines_per_panel, pcd = get_pcd(var->pixclock); - DPRINTK("Configuring PXA LCD\n"); + pr_debug("pxafb: Configuring PXA LCD\n"); - DPRINTK("var: xres=%d hslen=%d lm=%d rm=%d\n", - var->xres, var->hsync_len, - var->left_margin, var->right_margin); - DPRINTK("var: yres=%d vslen=%d um=%d bm=%d\n", - var->yres, var->vsync_len, - var->upper_margin, var->lower_margin); - DPRINTK("var: pixclock=%d pcd=%d\n", var->pixclock, pcd); + pr_debug("var: xres=%d hslen=%d lm=%d rm=%d\n", + var->xres, var->hsync_len, + var->left_margin, var->right_margin); + pr_debug("var: yres=%d vslen=%d um=%d bm=%d\n", + var->yres, var->vsync_len, + var->upper_margin, var->lower_margin); + pr_debug("var: pixclock=%d pcd=%d\n", var->pixclock, pcd); #if DEBUG_VAR if (var->xres < 16 || var->xres > 1024) @@ -589,10 +589,10 @@ static int pxafb_activate_var(struct fb_var_screeninfo *var, struct pxafb_info * if (pcd) new_regs.lccr3 |= LCCR3_PixClkDiv(pcd); - DPRINTK("nlccr0 = 0x%08x\n", new_regs.lccr0); - DPRINTK("nlccr1 = 0x%08x\n", new_regs.lccr1); - DPRINTK("nlccr2 = 0x%08x\n", new_regs.lccr2); - DPRINTK("nlccr3 = 0x%08x\n", new_regs.lccr3); + pr_debug("nlccr0 = 0x%08x\n", new_regs.lccr0); + pr_debug("nlccr1 = 0x%08x\n", new_regs.lccr1); + pr_debug("nlccr2 = 0x%08x\n", new_regs.lccr2); + pr_debug("nlccr3 = 0x%08x\n", new_regs.lccr3); /* Update shadow copy atomically */ local_irq_save(flags); @@ -637,24 +637,24 @@ static int pxafb_activate_var(struct fb_var_screeninfo *var, struct pxafb_info * } #if 0 - DPRINTK("fbi->dmadesc_fblow_cpu = 0x%p\n", fbi->dmadesc_fblow_cpu); - DPRINTK("fbi->dmadesc_fbhigh_cpu = 0x%p\n", fbi->dmadesc_fbhigh_cpu); - DPRINTK("fbi->dmadesc_palette_cpu = 0x%p\n", fbi->dmadesc_palette_cpu); - DPRINTK("fbi->dmadesc_fblow_dma = 0x%x\n", fbi->dmadesc_fblow_dma); - DPRINTK("fbi->dmadesc_fbhigh_dma = 0x%x\n", fbi->dmadesc_fbhigh_dma); - DPRINTK("fbi->dmadesc_palette_dma = 0x%x\n", fbi->dmadesc_palette_dma); + pr_debug("fbi->dmadesc_fblow_cpu = 0x%p\n", fbi->dmadesc_fblow_cpu); + pr_debug("fbi->dmadesc_fbhigh_cpu = 0x%p\n", fbi->dmadesc_fbhigh_cpu); + pr_debug("fbi->dmadesc_palette_cpu = 0x%p\n", fbi->dmadesc_palette_cpu); + pr_debug("fbi->dmadesc_fblow_dma = 0x%x\n", fbi->dmadesc_fblow_dma); + pr_debug("fbi->dmadesc_fbhigh_dma = 0x%x\n", fbi->dmadesc_fbhigh_dma); + pr_debug("fbi->dmadesc_palette_dma = 0x%x\n", fbi->dmadesc_palette_dma); - DPRINTK("fbi->dmadesc_fblow_cpu->fdadr = 0x%x\n", fbi->dmadesc_fblow_cpu->fdadr); - DPRINTK("fbi->dmadesc_fbhigh_cpu->fdadr = 0x%x\n", fbi->dmadesc_fbhigh_cpu->fdadr); - DPRINTK("fbi->dmadesc_palette_cpu->fdadr = 0x%x\n", fbi->dmadesc_palette_cpu->fdadr); + pr_debug("fbi->dmadesc_fblow_cpu->fdadr = 0x%x\n", fbi->dmadesc_fblow_cpu->fdadr); + pr_debug("fbi->dmadesc_fbhigh_cpu->fdadr = 0x%x\n", fbi->dmadesc_fbhigh_cpu->fdadr); + pr_debug("fbi->dmadesc_palette_cpu->fdadr = 0x%x\n", fbi->dmadesc_palette_cpu->fdadr); - DPRINTK("fbi->dmadesc_fblow_cpu->fsadr = 0x%x\n", fbi->dmadesc_fblow_cpu->fsadr); - DPRINTK("fbi->dmadesc_fbhigh_cpu->fsadr = 0x%x\n", fbi->dmadesc_fbhigh_cpu->fsadr); - DPRINTK("fbi->dmadesc_palette_cpu->fsadr = 0x%x\n", fbi->dmadesc_palette_cpu->fsadr); + pr_debug("fbi->dmadesc_fblow_cpu->fsadr = 0x%x\n", fbi->dmadesc_fblow_cpu->fsadr); + pr_debug("fbi->dmadesc_fbhigh_cpu->fsadr = 0x%x\n", fbi->dmadesc_fbhigh_cpu->fsadr); + pr_debug("fbi->dmadesc_palette_cpu->fsadr = 0x%x\n", fbi->dmadesc_palette_cpu->fsadr); - DPRINTK("fbi->dmadesc_fblow_cpu->ldcmd = 0x%x\n", fbi->dmadesc_fblow_cpu->ldcmd); - DPRINTK("fbi->dmadesc_fbhigh_cpu->ldcmd = 0x%x\n", fbi->dmadesc_fbhigh_cpu->ldcmd); - DPRINTK("fbi->dmadesc_palette_cpu->ldcmd = 0x%x\n", fbi->dmadesc_palette_cpu->ldcmd); + pr_debug("fbi->dmadesc_fblow_cpu->ldcmd = 0x%x\n", fbi->dmadesc_fblow_cpu->ldcmd); + pr_debug("fbi->dmadesc_fbhigh_cpu->ldcmd = 0x%x\n", fbi->dmadesc_fbhigh_cpu->ldcmd); + pr_debug("fbi->dmadesc_palette_cpu->ldcmd = 0x%x\n", fbi->dmadesc_palette_cpu->ldcmd); #endif fbi->reg_lccr0 = new_regs.lccr0; @@ -684,7 +684,7 @@ static int pxafb_activate_var(struct fb_var_screeninfo *var, struct pxafb_info * */ static inline void __pxafb_backlight_power(struct pxafb_info *fbi, int on) { - DPRINTK("backlight o%s\n", on ? "n" : "ff"); + pr_debug("pxafb: backlight o%s\n", on ? "n" : "ff"); if (pxafb_backlight_power) pxafb_backlight_power(on); @@ -692,7 +692,7 @@ static inline void __pxafb_backlight_power(struct pxafb_info *fbi, int on) static inline void __pxafb_lcd_power(struct pxafb_info *fbi, int on) { - DPRINTK("LCD power o%s\n", on ? "n" : "ff"); + pr_debug("pxafb: LCD power o%s\n", on ? "n" : "ff"); if (pxafb_lcd_power) pxafb_lcd_power(on); @@ -740,13 +740,13 @@ static void pxafb_setup_gpio(struct pxafb_info *fbi) static void pxafb_enable_controller(struct pxafb_info *fbi) { - DPRINTK("Enabling LCD controller\n"); - DPRINTK("fdadr0 0x%08x\n", (unsigned int) fbi->fdadr0); - DPRINTK("fdadr1 0x%08x\n", (unsigned int) fbi->fdadr1); - DPRINTK("reg_lccr0 0x%08x\n", (unsigned int) fbi->reg_lccr0); - DPRINTK("reg_lccr1 0x%08x\n", (unsigned int) fbi->reg_lccr1); - DPRINTK("reg_lccr2 0x%08x\n", (unsigned int) fbi->reg_lccr2); - DPRINTK("reg_lccr3 0x%08x\n", (unsigned int) fbi->reg_lccr3); + pr_debug("pxafb: Enabling LCD controller\n"); + pr_debug("fdadr0 0x%08x\n", (unsigned int) fbi->fdadr0); + pr_debug("fdadr1 0x%08x\n", (unsigned int) fbi->fdadr1); + pr_debug("reg_lccr0 0x%08x\n", (unsigned int) fbi->reg_lccr0); + pr_debug("reg_lccr1 0x%08x\n", (unsigned int) fbi->reg_lccr1); + pr_debug("reg_lccr2 0x%08x\n", (unsigned int) fbi->reg_lccr2); + pr_debug("reg_lccr3 0x%08x\n", (unsigned int) fbi->reg_lccr3); /* enable LCD controller clock */ pxa_set_cken(CKEN16_LCD, 1); @@ -761,19 +761,19 @@ static void pxafb_enable_controller(struct pxafb_info *fbi) FDADR1 = fbi->fdadr1; LCCR0 |= LCCR0_ENB; - DPRINTK("FDADR0 0x%08x\n", (unsigned int) FDADR0); - DPRINTK("FDADR1 0x%08x\n", (unsigned int) FDADR1); - DPRINTK("LCCR0 0x%08x\n", (unsigned int) LCCR0); - DPRINTK("LCCR1 0x%08x\n", (unsigned int) LCCR1); - DPRINTK("LCCR2 0x%08x\n", (unsigned int) LCCR2); - DPRINTK("LCCR3 0x%08x\n", (unsigned int) LCCR3); + pr_debug("FDADR0 0x%08x\n", (unsigned int) FDADR0); + pr_debug("FDADR1 0x%08x\n", (unsigned int) FDADR1); + pr_debug("LCCR0 0x%08x\n", (unsigned int) LCCR0); + pr_debug("LCCR1 0x%08x\n", (unsigned int) LCCR1); + pr_debug("LCCR2 0x%08x\n", (unsigned int) LCCR2); + pr_debug("LCCR3 0x%08x\n", (unsigned int) LCCR3); } static void pxafb_disable_controller(struct pxafb_info *fbi) { DECLARE_WAITQUEUE(wait, current); - DPRINTK("Disabling LCD controller\n"); + pr_debug("pxafb: disabling LCD controller\n"); set_current_state(TASK_UNINTERRUPTIBLE); add_wait_queue(&fbi->ctrlr_wait, &wait); @@ -1039,7 +1039,7 @@ static int __init pxafb_map_video_memory(struct pxafb_info *fbi) fbi->palette_size = fbi->fb.var.bits_per_pixel == 8 ? 256 : 16; palette_mem_size = fbi->palette_size * sizeof(u16); - DPRINTK("palette_mem_size = 0x%08lx\n", (u_long) palette_mem_size); + pr_debug("pxafb: palette_mem_size = 0x%08lx\n", palette_mem_size); fbi->palette_cpu = (u16 *)(fbi->map_cpu + PAGE_SIZE - palette_mem_size); fbi->palette_dma = fbi->map_dma + PAGE_SIZE - palette_mem_size; diff --git a/drivers/video/pxafb.h b/drivers/video/pxafb.h index 22c00be786a8..47f41f70db7a 100644 --- a/drivers/video/pxafb.h +++ b/drivers/video/pxafb.h @@ -113,15 +113,6 @@ struct pxafb_info { #define PXA_NAME "PXA" -/* - * Debug macros - */ -#if DEBUG -# define DPRINTK(fmt, args...) printk("%s: " fmt, __FUNCTION__ , ## args) -#else -# define DPRINTK(fmt, args...) -#endif - /* * Minimum X and Y resolutions */ From eb9181a2f85d46cdbbd3cb18b4541f8ab2df0933 Mon Sep 17 00:00:00 2001 From: Russell King Date: Thu, 29 Sep 2005 09:49:25 +0100 Subject: [PATCH 232/352] [ARM] Fix warning in arch/arm/mach-pxa/generic.c Fix arch/arm/mach-pxa/generic.c:242: warning: 'struct i2c_pxa_platform_data' declared inside parameter list caused by missing asm/arch/i2c.h include. Signed-off-by: Russell King --- arch/arm/mach-pxa/generic.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/mach-pxa/generic.c b/arch/arm/mach-pxa/generic.c index a45aaa115a76..d0660a8c4b70 100644 --- a/arch/arm/mach-pxa/generic.c +++ b/arch/arm/mach-pxa/generic.c @@ -34,6 +34,7 @@ #include #include #include +#include #include "generic.h" From d0877904470c149c6553f1309cfed6c90d67cf91 Mon Sep 17 00:00:00 2001 From: Russell King Date: Thu, 29 Sep 2005 11:12:52 +0100 Subject: [PATCH 233/352] [ARM] Don't include asm/arch/hardware.h directly Since asm/hardware.h's only reason for existing is to include asm/arch/hardware.h, it's completely pointless to include both. Signed-off-by: Russell King --- arch/arm/mach-l7200/core.c | 1 - drivers/usb/host/ohci-lh7a404.c | 1 - drivers/usb/host/ohci-omap.c | 1 - 3 files changed, 3 deletions(-) diff --git a/arch/arm/mach-l7200/core.c b/arch/arm/mach-l7200/core.c index 2a7fee2a7635..5fd8c9f97f9a 100644 --- a/arch/arm/mach-l7200/core.c +++ b/arch/arm/mach-l7200/core.c @@ -12,7 +12,6 @@ #include #include -#include /* * IRQ base register diff --git a/drivers/usb/host/ohci-lh7a404.c b/drivers/usb/host/ohci-lh7a404.c index 817620d73841..198c1c666e2c 100644 --- a/drivers/usb/host/ohci-lh7a404.c +++ b/drivers/usb/host/ohci-lh7a404.c @@ -18,7 +18,6 @@ #include #include -#include extern int usb_disabled(void); diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c index 5cde76faab93..d8f3ba7ad52e 100644 --- a/drivers/usb/host/ohci-omap.c +++ b/drivers/usb/host/ohci-omap.c @@ -18,7 +18,6 @@ #include #include -#include #include #include #include From fc611a1a50caa04bae82ed3c1fc6505132f8343f Mon Sep 17 00:00:00 2001 From: Russell King Date: Thu, 29 Sep 2005 11:15:51 +0100 Subject: [PATCH 234/352] [ARM] Don't include mach-types.h unnecessarily It's pointless to include mach-types.h if you're not going to use anything from it. These references were removed as a result of: grep -lr 'asm/mach-types\.h' . | xargs grep -L 'machine_is_\|MACH_TYPE_\|MACHINE_START\|machine_type' Signed-off-by: Russell King --- arch/arm/common/locomo.c | 1 - arch/arm/mach-imx/leds-mx1ads.c | 1 - arch/arm/mach-iop3xx/common.c | 1 - arch/arm/mach-iop3xx/iop321-time.c | 1 - arch/arm/mach-iop3xx/iop331-time.c | 1 - arch/arm/mach-iop3xx/iq31244-mm.c | 1 - arch/arm/mach-iop3xx/iq80321-mm.c | 1 - arch/arm/mach-iop3xx/iq80331-mm.c | 1 - arch/arm/mach-iop3xx/iq80332-mm.c | 1 - arch/arm/mach-ixp2000/core.c | 1 - arch/arm/mach-ixp2000/pci.c | 1 - arch/arm/mach-pxa/corgi_lcd.c | 1 - arch/arm/mach-s3c2410/usb-simtec.c | 1 - arch/arm/mach-versatile/core.c | 1 - arch/arm/mach-versatile/pci.c | 1 - arch/arm/plat-omap/common.c | 1 - arch/arm/plat-omap/cpu-omap.c | 1 - arch/arm/plat-omap/usb.c | 1 - drivers/mtd/maps/bast-flash.c | 1 - drivers/mtd/maps/ixp2000.c | 1 - drivers/mtd/maps/ixp4xx.c | 1 - drivers/mtd/maps/omap_nor.c | 1 - drivers/mtd/maps/sa1100-flash.c | 1 - drivers/mtd/nand/s3c2410.c | 1 - drivers/pcmcia/omap_cf.c | 1 - drivers/serial/s3c2410.c | 2 -- drivers/usb/host/ohci-lh7a404.c | 1 - drivers/usb/host/ohci-s3c2410.c | 1 - drivers/video/backlight/corgi_bl.c | 1 - drivers/video/imxfb.c | 1 - 30 files changed, 31 deletions(-) diff --git a/arch/arm/common/locomo.c b/arch/arm/common/locomo.c index a7bd85700152..e8053d16829b 100644 --- a/arch/arm/common/locomo.c +++ b/arch/arm/common/locomo.c @@ -27,7 +27,6 @@ #include #include -#include #include #include #include diff --git a/arch/arm/mach-imx/leds-mx1ads.c b/arch/arm/mach-imx/leds-mx1ads.c index e6399b06e4a4..79236404aec2 100644 --- a/arch/arm/mach-imx/leds-mx1ads.c +++ b/arch/arm/mach-imx/leds-mx1ads.c @@ -17,7 +17,6 @@ #include #include #include -#include #include "leds.h" /* diff --git a/arch/arm/mach-iop3xx/common.c b/arch/arm/mach-iop3xx/common.c index bda7394ec06c..fdeeef489a73 100644 --- a/arch/arm/mach-iop3xx/common.c +++ b/arch/arm/mach-iop3xx/common.c @@ -27,7 +27,6 @@ unsigned long iop3xx_pcibios_min_mem = 0; /* * Default power-off for EP80219 */ -#include static inline void ep80219_send_to_pic(__u8 c) { } diff --git a/arch/arm/mach-iop3xx/iop321-time.c b/arch/arm/mach-iop3xx/iop321-time.c index 0039793b694a..d67ac0e5d438 100644 --- a/arch/arm/mach-iop3xx/iop321-time.c +++ b/arch/arm/mach-iop3xx/iop321-time.c @@ -23,7 +23,6 @@ #include #include #include -#include #include #include diff --git a/arch/arm/mach-iop3xx/iop331-time.c b/arch/arm/mach-iop3xx/iop331-time.c index 8eddfac7e2b0..3c1f0ebbd636 100644 --- a/arch/arm/mach-iop3xx/iop331-time.c +++ b/arch/arm/mach-iop3xx/iop331-time.c @@ -23,7 +23,6 @@ #include #include #include -#include #include #include diff --git a/arch/arm/mach-iop3xx/iq31244-mm.c b/arch/arm/mach-iop3xx/iq31244-mm.c index b01042f7de71..55992ab586ba 100644 --- a/arch/arm/mach-iop3xx/iq31244-mm.c +++ b/arch/arm/mach-iop3xx/iq31244-mm.c @@ -21,7 +21,6 @@ #include #include -#include /* diff --git a/arch/arm/mach-iop3xx/iq80321-mm.c b/arch/arm/mach-iop3xx/iq80321-mm.c index 1580c7ed2b9d..bb3e9e5a9aff 100644 --- a/arch/arm/mach-iop3xx/iq80321-mm.c +++ b/arch/arm/mach-iop3xx/iq80321-mm.c @@ -21,7 +21,6 @@ #include #include -#include /* diff --git a/arch/arm/mach-iop3xx/iq80331-mm.c b/arch/arm/mach-iop3xx/iq80331-mm.c index ee8c333e115f..129eb49b0670 100644 --- a/arch/arm/mach-iop3xx/iq80331-mm.c +++ b/arch/arm/mach-iop3xx/iq80331-mm.c @@ -21,7 +21,6 @@ #include #include -#include /* diff --git a/arch/arm/mach-iop3xx/iq80332-mm.c b/arch/arm/mach-iop3xx/iq80332-mm.c index 084afcdfb1eb..2feaf7591f53 100644 --- a/arch/arm/mach-iop3xx/iq80332-mm.c +++ b/arch/arm/mach-iop3xx/iq80332-mm.c @@ -21,7 +21,6 @@ #include #include -#include /* diff --git a/arch/arm/mach-ixp2000/core.c b/arch/arm/mach-ixp2000/core.c index 74bd2fd602d4..f34797a46a23 100644 --- a/arch/arm/mach-ixp2000/core.c +++ b/arch/arm/mach-ixp2000/core.c @@ -30,7 +30,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/arm/mach-ixp2000/pci.c b/arch/arm/mach-ixp2000/pci.c index 0788fb2b5c10..522205acb316 100644 --- a/arch/arm/mach-ixp2000/pci.c +++ b/arch/arm/mach-ixp2000/pci.c @@ -28,7 +28,6 @@ #include #include #include -#include #include #include diff --git a/arch/arm/mach-pxa/corgi_lcd.c b/arch/arm/mach-pxa/corgi_lcd.c index c5efcd04fcbc..c02ef7c0f7ef 100644 --- a/arch/arm/mach-pxa/corgi_lcd.c +++ b/arch/arm/mach-pxa/corgi_lcd.c @@ -19,7 +19,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/arm/mach-s3c2410/usb-simtec.c b/arch/arm/mach-s3c2410/usb-simtec.c index f021fd82be52..5098b50158a3 100644 --- a/arch/arm/mach-s3c2410/usb-simtec.c +++ b/arch/arm/mach-s3c2410/usb-simtec.c @@ -40,7 +40,6 @@ #include #include #include -#include #include "devs.h" #include "usb-simtec.h" diff --git a/arch/arm/mach-versatile/core.c b/arch/arm/mach-versatile/core.c index 3c8862fde51a..6a291e6fdabd 100644 --- a/arch/arm/mach-versatile/core.c +++ b/arch/arm/mach-versatile/core.c @@ -30,7 +30,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/arm/mach-versatile/pci.c b/arch/arm/mach-versatile/pci.c index d1565e851f0e..b80d57d51699 100644 --- a/arch/arm/mach-versatile/pci.c +++ b/arch/arm/mach-versatile/pci.c @@ -29,7 +29,6 @@ #include #include #include -#include /* * these spaces are mapped using the following base registers: diff --git a/arch/arm/plat-omap/common.c b/arch/arm/plat-omap/common.c index 6cb20aea7f51..02bcc6c1cd1b 100644 --- a/arch/arm/plat-omap/common.c +++ b/arch/arm/plat-omap/common.c @@ -25,7 +25,6 @@ #include #include #include -#include #include #include diff --git a/arch/arm/plat-omap/cpu-omap.c b/arch/arm/plat-omap/cpu-omap.c index 409aac2c4b9d..fd894bb00107 100644 --- a/arch/arm/plat-omap/cpu-omap.c +++ b/arch/arm/plat-omap/cpu-omap.c @@ -21,7 +21,6 @@ #include #include -#include #include #include diff --git a/arch/arm/plat-omap/usb.c b/arch/arm/plat-omap/usb.c index 98f1c76f8660..14a836d7ac25 100644 --- a/arch/arm/plat-omap/usb.c +++ b/arch/arm/plat-omap/usb.c @@ -33,7 +33,6 @@ #include #include #include -#include #include #include diff --git a/drivers/mtd/maps/bast-flash.c b/drivers/mtd/maps/bast-flash.c index 0c45464e3f7b..0ba0ff7d43b9 100644 --- a/drivers/mtd/maps/bast-flash.c +++ b/drivers/mtd/maps/bast-flash.c @@ -39,7 +39,6 @@ #include #include -#include #include #include diff --git a/drivers/mtd/maps/ixp2000.c b/drivers/mtd/maps/ixp2000.c index 3e94b616743d..a9f86c7fbd52 100644 --- a/drivers/mtd/maps/ixp2000.c +++ b/drivers/mtd/maps/ixp2000.c @@ -30,7 +30,6 @@ #include #include -#include #include #include diff --git a/drivers/mtd/maps/ixp4xx.c b/drivers/mtd/maps/ixp4xx.c index 5afe660aa2c4..05f48427a87c 100644 --- a/drivers/mtd/maps/ixp4xx.c +++ b/drivers/mtd/maps/ixp4xx.c @@ -26,7 +26,6 @@ #include #include #include -#include #include #include diff --git a/drivers/mtd/maps/omap_nor.c b/drivers/mtd/maps/omap_nor.c index 8cc71409a328..b17bca657daf 100644 --- a/drivers/mtd/maps/omap_nor.c +++ b/drivers/mtd/maps/omap_nor.c @@ -42,7 +42,6 @@ #include #include -#include #include #include diff --git a/drivers/mtd/maps/sa1100-flash.c b/drivers/mtd/maps/sa1100-flash.c index 52385705da09..8dcaa357b4bb 100644 --- a/drivers/mtd/maps/sa1100-flash.c +++ b/drivers/mtd/maps/sa1100-flash.c @@ -21,7 +21,6 @@ #include #include -#include #include #include #include diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c index 891e3a1b9110..b47ebcb31e0f 100644 --- a/drivers/mtd/nand/s3c2410.c +++ b/drivers/mtd/nand/s3c2410.c @@ -58,7 +58,6 @@ #include #include -#include #include #include diff --git a/drivers/pcmcia/omap_cf.c b/drivers/pcmcia/omap_cf.c index 08d1c9288264..94be9e51654e 100644 --- a/drivers/pcmcia/omap_cf.c +++ b/drivers/pcmcia/omap_cf.c @@ -22,7 +22,6 @@ #include #include -#include #include #include diff --git a/drivers/serial/s3c2410.c b/drivers/serial/s3c2410.c index c361c6fb0809..3c04f590c364 100644 --- a/drivers/serial/s3c2410.c +++ b/drivers/serial/s3c2410.c @@ -82,8 +82,6 @@ #include #include -#include - /* structures */ struct s3c24xx_uart_info { diff --git a/drivers/usb/host/ohci-lh7a404.c b/drivers/usb/host/ohci-lh7a404.c index 198c1c666e2c..859aca7be753 100644 --- a/drivers/usb/host/ohci-lh7a404.c +++ b/drivers/usb/host/ohci-lh7a404.c @@ -17,7 +17,6 @@ */ #include -#include extern int usb_disabled(void); diff --git a/drivers/usb/host/ohci-s3c2410.c b/drivers/usb/host/ohci-s3c2410.c index 3d9bcf78a9a4..da7d5478f74d 100644 --- a/drivers/usb/host/ohci-s3c2410.c +++ b/drivers/usb/host/ohci-s3c2410.c @@ -20,7 +20,6 @@ */ #include -#include #include #include diff --git a/drivers/video/backlight/corgi_bl.c b/drivers/video/backlight/corgi_bl.c index 630f2dfa9699..3c72c627e65e 100644 --- a/drivers/video/backlight/corgi_bl.c +++ b/drivers/video/backlight/corgi_bl.c @@ -19,7 +19,6 @@ #include #include -#include #include #define CORGI_DEFAULT_INTENSITY 0x1f diff --git a/drivers/video/imxfb.c b/drivers/video/imxfb.c index 6c2244cf0e74..1d54d3d6960b 100644 --- a/drivers/video/imxfb.c +++ b/drivers/video/imxfb.c @@ -36,7 +36,6 @@ #include #include -#include #include #include From ecba97d4aacf4e80c56eb73e39af0369cb8539a4 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Wed, 28 Sep 2005 22:27:23 +0100 Subject: [PATCH 235/352] [PATCH] uml makefiles sanitized UML makefiles sanitized: - number of generated headers reduced to 2 (from user-offsets.c and kernel-offsets.c resp.). The rest is made constant and simply includes those two. - mk_... helpers are gone now that we don't need to generate these headers - arch/um/include2 removed since everything under arch/um/include/sysdep is constant now and symlink can point straight to source tree. - dependencies seriously simplified. Signed-off-by: Al Viro Signed-off-by: Linus Torvalds --- arch/um/Makefile | 68 ++---------- arch/um/Makefile-i386 | 22 ---- arch/um/Makefile-skas | 2 - arch/um/Makefile-x86_64 | 21 ---- arch/um/include/common-offsets.h | 4 +- arch/um/include/skas_ptregs.h | 6 + arch/um/include/sysdep-i386/sc.h | 44 ++++++++ arch/um/include/sysdep-i386/thread.h | 11 ++ arch/um/include/sysdep-x86_64/sc.h | 45 ++++++++ arch/um/include/sysdep-x86_64/thread.h | 10 ++ arch/um/include/task.h | 9 ++ arch/um/kernel/skas/Makefile | 2 - arch/um/kernel/skas/util/Makefile | 5 - arch/um/kernel/skas/util/mk_ptregs-i386.c | 49 -------- arch/um/kernel/skas/util/mk_ptregs-x86_64.c | 66 ----------- arch/um/os-Linux/elf_aux.c | 2 +- arch/um/os-Linux/util/Makefile | 4 - arch/um/os-Linux/util/mk_user_constants.c | 23 ---- arch/um/sys-i386/Makefile | 2 - arch/um/sys-i386/kernel-offsets.c | 4 +- arch/um/sys-i386/user-offsets.c | 73 ++++++------ arch/um/sys-i386/util/Makefile | 5 - arch/um/sys-i386/util/mk_sc.c | 51 --------- arch/um/sys-i386/util/mk_thread.c | 22 ---- arch/um/sys-x86_64/Makefile | 2 - arch/um/sys-x86_64/kernel-offsets.c | 2 +- arch/um/sys-x86_64/user-offsets.c | 117 ++++++++++---------- arch/um/sys-x86_64/util/Makefile | 8 -- arch/um/sys-x86_64/util/mk_sc.c | 47 -------- arch/um/sys-x86_64/util/mk_thread.c | 20 ---- arch/um/util/Makefile | 5 - arch/um/util/mk_constants.c | 32 ------ arch/um/util/mk_task.c | 30 ----- 33 files changed, 240 insertions(+), 573 deletions(-) create mode 100644 arch/um/include/skas_ptregs.h create mode 100644 arch/um/include/sysdep-i386/sc.h create mode 100644 arch/um/include/sysdep-i386/thread.h create mode 100644 arch/um/include/sysdep-x86_64/sc.h create mode 100644 arch/um/include/sysdep-x86_64/thread.h create mode 100644 arch/um/include/task.h delete mode 100644 arch/um/kernel/skas/util/Makefile delete mode 100644 arch/um/kernel/skas/util/mk_ptregs-i386.c delete mode 100644 arch/um/kernel/skas/util/mk_ptregs-x86_64.c delete mode 100644 arch/um/os-Linux/util/Makefile delete mode 100644 arch/um/os-Linux/util/mk_user_constants.c delete mode 100644 arch/um/sys-i386/util/Makefile delete mode 100644 arch/um/sys-i386/util/mk_sc.c delete mode 100644 arch/um/sys-i386/util/mk_thread.c delete mode 100644 arch/um/sys-x86_64/util/Makefile delete mode 100644 arch/um/sys-x86_64/util/mk_sc.c delete mode 100644 arch/um/sys-x86_64/util/mk_thread.c delete mode 100644 arch/um/util/Makefile delete mode 100644 arch/um/util/mk_constants.c delete mode 100644 arch/um/util/mk_task.c diff --git a/arch/um/Makefile b/arch/um/Makefile index 5b5af95721ab..7af37e342e33 100644 --- a/arch/um/Makefile +++ b/arch/um/Makefile @@ -28,8 +28,6 @@ SYMLINK_HEADERS := $(foreach header,$(SYMLINK_HEADERS),include/asm-um/$(header)) ARCH_SYMLINKS = include/asm-um/arch $(ARCH_DIR)/include/sysdep $(ARCH_DIR)/os \ $(SYMLINK_HEADERS) $(ARCH_DIR)/include/uml-config.h -GEN_HEADERS += $(ARCH_DIR)/include/task.h $(ARCH_DIR)/include/kern_constants.h - um-modes-$(CONFIG_MODE_TT) += tt um-modes-$(CONFIG_MODE_SKAS) += skas @@ -45,9 +43,7 @@ endif ARCH_INCLUDE := -I$(ARCH_DIR)/include ifneq ($(KBUILD_SRC),) -ARCH_INCLUDE += -I$(ARCH_DIR)/include2 ARCH_INCLUDE += -I$(srctree)/$(ARCH_DIR)/include -MRPROPER_DIRS += $(ARCH_DIR)/include2 endif SYS_DIR := $(ARCH_DIR)/include/sysdep-$(SUBARCH) @@ -87,10 +83,6 @@ CONFIG_KERNEL_HALF_GIGS ?= 0 SIZE = (($(CONFIG_NEST_LEVEL) + $(CONFIG_KERNEL_HALF_GIGS)) * 0x20000000) -ifeq ($(CONFIG_MODE_SKAS), y) -$(SYS_HEADERS) : $(ARCH_DIR)/include/skas_ptregs.h -endif - .PHONY: linux all: linux @@ -111,7 +103,8 @@ else $(shell cd $(ARCH_DIR) && ln -sf Kconfig.$(SUBARCH) Kconfig.arch) endif -archprepare: $(ARCH_SYMLINKS) $(SYS_HEADERS) $(GEN_HEADERS) +archprepare: $(ARCH_SYMLINKS) $(ARCH_DIR)/include/user_constants.h +prepare: $(ARCH_DIR)/include/kern_constants.h LINK-$(CONFIG_LD_SCRIPT_STATIC) += -static LINK-$(CONFIG_LD_SCRIPT_DYN) += -Wl,-rpath,/lib @@ -146,15 +139,13 @@ endef #When cleaning we don't include .config, so we don't include #TT or skas makefiles and don't clean skas_ptregs.h. CLEAN_FILES += linux x.i gmon.out $(ARCH_DIR)/include/uml-config.h \ - $(GEN_HEADERS) $(ARCH_DIR)/include/skas_ptregs.h \ - $(ARCH_DIR)/include/user_constants.h $(ARCH_DIR)/Kconfig.arch + $(ARCH_DIR)/include/user_constants.h \ + $(ARCH_DIR)/include/kern_constants.h $(ARCH_DIR)/Kconfig.arch MRPROPER_FILES += $(SYMLINK_HEADERS) $(ARCH_SYMLINKS) \ $(addprefix $(ARCH_DIR)/kernel/,$(KERN_SYMLINKS)) $(ARCH_DIR)/os archclean: - $(Q)$(MAKE) $(clean)=$(ARCH_DIR)/util - $(Q)$(MAKE) $(clean)=$(ARCH_DIR)/os-$(OS)/util @find . \( -name '*.bb' -o -name '*.bbg' -o -name '*.da' \ -o -name '*.gcov' \) -type f -print | xargs rm -f @@ -180,9 +171,7 @@ $(ARCH_DIR)/include/sysdep: @echo ' SYMLINK $@' ifneq ($(KBUILD_SRC),) $(Q)mkdir -p $(ARCH_DIR)/include - $(Q)mkdir -p $(ARCH_DIR)/include2 - $(Q)ln -fsn sysdep-$(SUBARCH) $(ARCH_DIR)/include/sysdep - $(Q)ln -fsn $(srctree)/$(ARCH_DIR)/include/sysdep-$(SUBARCH) $(ARCH_DIR)/include2/sysdep + $(Q)ln -fsn $(srctree)/$(ARCH_DIR)/include/sysdep-$(SUBARCH) $(ARCH_DIR)/include/sysdep else $(Q)cd $(ARCH_DIR)/include && ln -sf sysdep-$(SUBARCH) sysdep endif @@ -202,8 +191,6 @@ endef define filechk_gen-asm-offsets (set -e; \ - echo "#ifndef __ASM_OFFSETS_H__"; \ - echo "#define __ASM_OFFSETS_H__"; \ echo "/*"; \ echo " * DO NOT MODIFY."; \ echo " *"; \ @@ -212,8 +199,7 @@ define filechk_gen-asm-offsets echo " */"; \ echo ""; \ sed -ne "/^->/{s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; s:->::; p;}"; \ - echo ""; \ - echo "#endif" ) + echo ""; ) endef $(ARCH_DIR)/include/uml-config.h : include/linux/autoconf.h @@ -222,50 +208,18 @@ $(ARCH_DIR)/include/uml-config.h : include/linux/autoconf.h $(ARCH_DIR)/user-offsets.s: $(ARCH_DIR)/sys-$(SUBARCH)/user-offsets.c $(CC) $(USER_CFLAGS) -S -o $@ $< -$(ARCH_DIR)/user-offsets.h: $(ARCH_DIR)/user-offsets.s +$(ARCH_DIR)/include/user_constants.h: $(ARCH_DIR)/user-offsets.s $(call filechk,gen-asm-offsets) -CLEAN_FILES += $(ARCH_DIR)/user-offsets.s $(ARCH_DIR)/user-offsets.h +CLEAN_FILES += $(ARCH_DIR)/user-offsets.s $(ARCH_DIR)/kernel-offsets.s: $(ARCH_DIR)/sys-$(SUBARCH)/kernel-offsets.c \ - $(ARCH_SYMLINKS) \ - $(SYS_DIR)/sc.h \ - include/asm include/linux/version.h \ - include/config/MARKER \ - $(ARCH_DIR)/include/user_constants.h + archprepare $(CC) $(CFLAGS) $(NOSTDINC_FLAGS) $(CPPFLAGS) -S -o $@ $< -$(ARCH_DIR)/kernel-offsets.h: $(ARCH_DIR)/kernel-offsets.s +$(ARCH_DIR)/include/kern_constants.h: $(ARCH_DIR)/kernel-offsets.s $(call filechk,gen-asm-offsets) -CLEAN_FILES += $(ARCH_DIR)/kernel-offsets.s $(ARCH_DIR)/kernel-offsets.h - -$(ARCH_DIR)/include/task.h: $(ARCH_DIR)/util/mk_task - $(call filechk,gen_header) - -$(ARCH_DIR)/include/user_constants.h: $(ARCH_DIR)/os-$(OS)/util/mk_user_constants - $(call filechk,gen_header) - -$(ARCH_DIR)/include/kern_constants.h: $(ARCH_DIR)/util/mk_constants - $(call filechk,gen_header) - -$(ARCH_DIR)/include/skas_ptregs.h: $(ARCH_DIR)/kernel/skas/util/mk_ptregs - $(call filechk,gen_header) - -$(ARCH_DIR)/os-$(OS)/util/mk_user_constants: $(ARCH_DIR)/os-$(OS)/util FORCE ; - -$(ARCH_DIR)/util/mk_task $(ARCH_DIR)/util/mk_constants: $(ARCH_DIR)/include/user_constants.h $(ARCH_DIR)/util \ - FORCE ; - -$(ARCH_DIR)/kernel/skas/util/mk_ptregs: $(ARCH_DIR)/kernel/skas/util FORCE ; - -$(ARCH_DIR)/util: scripts_basic $(SYS_DIR)/sc.h $(ARCH_DIR)/kernel-offsets.h FORCE - $(Q)$(MAKE) $(build)=$@ - -$(ARCH_DIR)/kernel/skas/util: scripts_basic $(ARCH_DIR)/user-offsets.h FORCE - $(Q)$(MAKE) $(build)=$@ - -$(ARCH_DIR)/os-$(OS)/util: scripts_basic $(ARCH_DIR)/user-offsets.h FORCE - $(Q)$(MAKE) $(build)=$@ +CLEAN_FILES += $(ARCH_DIR)/kernel-offsets.s export SUBARCH USER_CFLAGS OS diff --git a/arch/um/Makefile-i386 b/arch/um/Makefile-i386 index 1ab431a53ac3..2ee8a2858117 100644 --- a/arch/um/Makefile-i386 +++ b/arch/um/Makefile-i386 @@ -32,25 +32,3 @@ CFLAGS += -U__$(SUBARCH)__ -U$(SUBARCH) ifneq ($(CONFIG_GPROF),y) ARCH_CFLAGS += -DUM_FASTCALL endif - -SYS_UTIL_DIR := $(ARCH_DIR)/sys-i386/util -SYS_HEADERS := $(SYS_DIR)/sc.h $(SYS_DIR)/thread.h - -prepare: $(SYS_HEADERS) - -$(SYS_DIR)/sc.h: $(SYS_UTIL_DIR)/mk_sc - $(call filechk,gen_header) - -$(SYS_DIR)/thread.h: $(SYS_UTIL_DIR)/mk_thread - $(call filechk,gen_header) - -$(SYS_UTIL_DIR)/mk_sc: scripts_basic $(ARCH_DIR)/user-offsets.h FORCE - $(Q)$(MAKE) $(build)=$(SYS_UTIL_DIR) $@ - -$(SYS_UTIL_DIR)/mk_thread: scripts_basic $(ARCH_DIR)/kernel-offsets.h FORCE - $(Q)$(MAKE) $(build)=$(SYS_UTIL_DIR) $@ - -$(SYS_UTIL_DIR): scripts_basic include/asm FORCE - $(Q)$(MAKE) $(build)=$(SYS_UTIL_DIR) - -CLEAN_FILES += $(SYS_HEADERS) diff --git a/arch/um/Makefile-skas b/arch/um/Makefile-skas index fd18ec572271..ac35de5316a6 100644 --- a/arch/um/Makefile-skas +++ b/arch/um/Makefile-skas @@ -10,5 +10,3 @@ CFLAGS-$(CONFIG_GCOV) += $(GCOV_OPT) CFLAGS-$(CONFIG_GPROF) += $(GPROF_OPT) LINK-$(CONFIG_GCOV) += $(GCOV_OPT) LINK-$(CONFIG_GPROF) += $(GPROF_OPT) - -GEN_HEADERS += $(ARCH_DIR)/include/skas_ptregs.h diff --git a/arch/um/Makefile-x86_64 b/arch/um/Makefile-x86_64 index 436abbba409b..4f118d5cc2ee 100644 --- a/arch/um/Makefile-x86_64 +++ b/arch/um/Makefile-x86_64 @@ -12,24 +12,3 @@ CHECKFLAGS += -m64 ELF_ARCH := i386:x86-64 ELF_FORMAT := elf64-x86-64 - -SYS_UTIL_DIR := $(ARCH_DIR)/sys-x86_64/util -SYS_DIR := $(ARCH_DIR)/include/sysdep-x86_64 - -SYS_HEADERS = $(SYS_DIR)/sc.h $(SYS_DIR)/thread.h - -prepare: $(SYS_HEADERS) - -$(SYS_DIR)/sc.h: $(SYS_UTIL_DIR)/mk_sc - $(call filechk,gen_header) - -$(SYS_DIR)/thread.h: $(SYS_UTIL_DIR)/mk_thread - $(call filechk,gen_header) - -$(SYS_UTIL_DIR)/mk_sc: scripts_basic $(ARCH_DIR)/user-offsets.h FORCE - $(Q)$(MAKE) $(build)=$(SYS_UTIL_DIR) $@ - -$(SYS_UTIL_DIR)/mk_thread: scripts_basic $(GEN_HEADERS) $(ARCH_DIR)/kernel-offsets.h FORCE - $(Q)$(MAKE) $(build)=$(SYS_UTIL_DIR) $@ - -CLEAN_FILES += $(SYS_HEADERS) diff --git a/arch/um/include/common-offsets.h b/arch/um/include/common-offsets.h index 782ac3a3baf9..356390d1f8b9 100644 --- a/arch/um/include/common-offsets.h +++ b/arch/um/include/common-offsets.h @@ -1,7 +1,7 @@ /* for use by sys-$SUBARCH/kernel-offsets.c */ -OFFSET(TASK_REGS, task_struct, thread.regs); -OFFSET(TASK_PID, task_struct, pid); +OFFSET(HOST_TASK_REGS, task_struct, thread.regs); +OFFSET(HOST_TASK_PID, task_struct, pid); DEFINE(UM_KERN_PAGE_SIZE, PAGE_SIZE); DEFINE(UM_NSEC_PER_SEC, NSEC_PER_SEC); DEFINE_STR(UM_KERN_EMERG, KERN_EMERG); diff --git a/arch/um/include/skas_ptregs.h b/arch/um/include/skas_ptregs.h new file mode 100644 index 000000000000..73db19e9c077 --- /dev/null +++ b/arch/um/include/skas_ptregs.h @@ -0,0 +1,6 @@ +#ifndef __SKAS_PT_REGS_ +#define __SKAS_PT_REGS_ + +#include + +#endif diff --git a/arch/um/include/sysdep-i386/sc.h b/arch/um/include/sysdep-i386/sc.h new file mode 100644 index 000000000000..c57d1780ad37 --- /dev/null +++ b/arch/um/include/sysdep-i386/sc.h @@ -0,0 +1,44 @@ +#ifndef __SYSDEP_I386_SC_H +#define __SYSDEP_I386_SC_H + +#include + +#define SC_OFFSET(sc, field) \ + *((unsigned long *) &(((char *) (sc))[HOST_##field])) +#define SC_FP_OFFSET(sc, field) \ + *((unsigned long *) &(((char *) (SC_FPSTATE(sc)))[HOST_##field])) +#define SC_FP_OFFSET_PTR(sc, field, type) \ + ((type *) &(((char *) (SC_FPSTATE(sc)))[HOST_##field])) + +#define SC_IP(sc) SC_OFFSET(sc, SC_IP) +#define SC_SP(sc) SC_OFFSET(sc, SC_SP) +#define SC_FS(sc) SC_OFFSET(sc, SC_FS) +#define SC_GS(sc) SC_OFFSET(sc, SC_GS) +#define SC_DS(sc) SC_OFFSET(sc, SC_DS) +#define SC_ES(sc) SC_OFFSET(sc, SC_ES) +#define SC_SS(sc) SC_OFFSET(sc, SC_SS) +#define SC_CS(sc) SC_OFFSET(sc, SC_CS) +#define SC_EFLAGS(sc) SC_OFFSET(sc, SC_EFLAGS) +#define SC_EAX(sc) SC_OFFSET(sc, SC_EAX) +#define SC_EBX(sc) SC_OFFSET(sc, SC_EBX) +#define SC_ECX(sc) SC_OFFSET(sc, SC_ECX) +#define SC_EDX(sc) SC_OFFSET(sc, SC_EDX) +#define SC_EDI(sc) SC_OFFSET(sc, SC_EDI) +#define SC_ESI(sc) SC_OFFSET(sc, SC_ESI) +#define SC_EBP(sc) SC_OFFSET(sc, SC_EBP) +#define SC_TRAPNO(sc) SC_OFFSET(sc, SC_TRAPNO) +#define SC_ERR(sc) SC_OFFSET(sc, SC_ERR) +#define SC_CR2(sc) SC_OFFSET(sc, SC_CR2) +#define SC_FPSTATE(sc) SC_OFFSET(sc, SC_FPSTATE) +#define SC_SIGMASK(sc) SC_OFFSET(sc, SC_SIGMASK) +#define SC_FP_CW(sc) SC_FP_OFFSET(sc, SC_FP_CW) +#define SC_FP_SW(sc) SC_FP_OFFSET(sc, SC_FP_SW) +#define SC_FP_TAG(sc) SC_FP_OFFSET(sc, SC_FP_TAG) +#define SC_FP_IPOFF(sc) SC_FP_OFFSET(sc, SC_FP_IPOFF) +#define SC_FP_CSSEL(sc) SC_FP_OFFSET(sc, SC_FP_CSSEL) +#define SC_FP_DATAOFF(sc) SC_FP_OFFSET(sc, SC_FP_DATAOFF) +#define SC_FP_DATASEL(sc) SC_FP_OFFSET(sc, SC_FP_DATASEL) +#define SC_FP_ST(sc) SC_FP_OFFSET_PTR(sc, SC_FP_ST, struct _fpstate) +#define SC_FXSR_ENV(sc) SC_FP_OFFSET_PTR(sc, SC_FXSR_ENV, void) + +#endif diff --git a/arch/um/include/sysdep-i386/thread.h b/arch/um/include/sysdep-i386/thread.h new file mode 100644 index 000000000000..e2bd6bae8b8a --- /dev/null +++ b/arch/um/include/sysdep-i386/thread.h @@ -0,0 +1,11 @@ +#ifndef __UM_THREAD_H +#define __UM_THREAD_H + +#include + +#define TASK_DEBUGREGS(task) ((unsigned long *) &(((char *) (task))[HOST_TASK_DEBUGREGS])) +#ifdef CONFIG_MODE_TT +#define TASK_EXTERN_PID(task) *((int *) &(((char *) (task))[HOST_TASK_EXTERN_PID])) +#endif + +#endif diff --git a/arch/um/include/sysdep-x86_64/sc.h b/arch/um/include/sysdep-x86_64/sc.h new file mode 100644 index 000000000000..a160d9fcc596 --- /dev/null +++ b/arch/um/include/sysdep-x86_64/sc.h @@ -0,0 +1,45 @@ +#ifndef __SYSDEP_X86_64_SC_H +#define __SYSDEP_X86_64_SC_H + +/* Copyright (C) 2003 - 2004 PathScale, Inc + * Released under the GPL + */ + +#include + +#define SC_OFFSET(sc, field) \ + *((unsigned long *) &(((char *) (sc))[HOST_##field])) + +#define SC_RBX(sc) SC_OFFSET(sc, SC_RBX) +#define SC_RCX(sc) SC_OFFSET(sc, SC_RCX) +#define SC_RDX(sc) SC_OFFSET(sc, SC_RDX) +#define SC_RSI(sc) SC_OFFSET(sc, SC_RSI) +#define SC_RDI(sc) SC_OFFSET(sc, SC_RDI) +#define SC_RBP(sc) SC_OFFSET(sc, SC_RBP) +#define SC_RAX(sc) SC_OFFSET(sc, SC_RAX) +#define SC_R8(sc) SC_OFFSET(sc, SC_R8) +#define SC_R9(sc) SC_OFFSET(sc, SC_R9) +#define SC_R10(sc) SC_OFFSET(sc, SC_R10) +#define SC_R11(sc) SC_OFFSET(sc, SC_R11) +#define SC_R12(sc) SC_OFFSET(sc, SC_R12) +#define SC_R13(sc) SC_OFFSET(sc, SC_R13) +#define SC_R14(sc) SC_OFFSET(sc, SC_R14) +#define SC_R15(sc) SC_OFFSET(sc, SC_R15) +#define SC_IP(sc) SC_OFFSET(sc, SC_IP) +#define SC_SP(sc) SC_OFFSET(sc, SC_SP) +#define SC_CR2(sc) SC_OFFSET(sc, SC_CR2) +#define SC_ERR(sc) SC_OFFSET(sc, SC_ERR) +#define SC_TRAPNO(sc) SC_OFFSET(sc, SC_TRAPNO) +#define SC_CS(sc) SC_OFFSET(sc, SC_CS) +#define SC_FS(sc) SC_OFFSET(sc, SC_FS) +#define SC_GS(sc) SC_OFFSET(sc, SC_GS) +#define SC_EFLAGS(sc) SC_OFFSET(sc, SC_EFLAGS) +#define SC_SIGMASK(sc) SC_OFFSET(sc, SC_SIGMASK) +#if 0 +#define SC_ORIG_RAX(sc) SC_OFFSET(sc, SC_ORIG_RAX) +#define SC_DS(sc) SC_OFFSET(sc, SC_DS) +#define SC_ES(sc) SC_OFFSET(sc, SC_ES) +#define SC_SS(sc) SC_OFFSET(sc, SC_SS) +#endif + +#endif diff --git a/arch/um/include/sysdep-x86_64/thread.h b/arch/um/include/sysdep-x86_64/thread.h new file mode 100644 index 000000000000..6a76a7f3683f --- /dev/null +++ b/arch/um/include/sysdep-x86_64/thread.h @@ -0,0 +1,10 @@ +#ifndef __UM_THREAD_H +#define __UM_THREAD_H + +#include + +#ifdef CONFIG_MODE_TT +#define TASK_EXTERN_PID(task) *((int *) &(((char *) (task))[HOST_TASK_EXTERN_PID])) +#endif + +#endif diff --git a/arch/um/include/task.h b/arch/um/include/task.h new file mode 100644 index 000000000000..6375ba7203c9 --- /dev/null +++ b/arch/um/include/task.h @@ -0,0 +1,9 @@ +#ifndef __TASK_H +#define __TASK_H + +#include + +#define TASK_REGS(task) ((union uml_pt_regs *) &(((char *) (task))[HOST_TASK_REGS])) +#define TASK_PID(task) *((int *) &(((char *) (task))[HOST_TASK_PID])) + +#endif diff --git a/arch/um/kernel/skas/Makefile b/arch/um/kernel/skas/Makefile index db36c7c95940..8de471b59c1c 100644 --- a/arch/um/kernel/skas/Makefile +++ b/arch/um/kernel/skas/Makefile @@ -6,8 +6,6 @@ obj-y := clone.o exec_kern.o mem.o mem_user.o mmu.o process.o process_kern.o \ syscall.o tlb.o trap_user.o uaccess.o -subdir- := util - USER_OBJS := process.o clone.o include arch/um/scripts/Makefile.rules diff --git a/arch/um/kernel/skas/util/Makefile b/arch/um/kernel/skas/util/Makefile deleted file mode 100644 index f7b7eba83340..000000000000 --- a/arch/um/kernel/skas/util/Makefile +++ /dev/null @@ -1,5 +0,0 @@ -hostprogs-y := mk_ptregs -always := $(hostprogs-y) - -mk_ptregs-objs := mk_ptregs-$(SUBARCH).o -HOSTCFLAGS_mk_ptregs-$(SUBARCH).o := -I$(objtree)/arch/um diff --git a/arch/um/kernel/skas/util/mk_ptregs-i386.c b/arch/um/kernel/skas/util/mk_ptregs-i386.c deleted file mode 100644 index 1f96e1eeb8a7..000000000000 --- a/arch/um/kernel/skas/util/mk_ptregs-i386.c +++ /dev/null @@ -1,49 +0,0 @@ -#include -#include - -#define SHOW(name) printf("#define %s %d\n", #name, name) - -int main(int argc, char **argv) -{ - printf("/* Automatically generated by " - "arch/um/kernel/skas/util/mk_ptregs */\n"); - printf("\n"); - printf("#ifndef __SKAS_PT_REGS_\n"); - printf("#define __SKAS_PT_REGS_\n"); - printf("\n"); - SHOW(HOST_FRAME_SIZE); - SHOW(HOST_FP_SIZE); - SHOW(HOST_XFP_SIZE); - - SHOW(HOST_IP); - SHOW(HOST_SP); - SHOW(HOST_EFLAGS); - SHOW(HOST_EAX); - SHOW(HOST_EBX); - SHOW(HOST_ECX); - SHOW(HOST_EDX); - SHOW(HOST_ESI); - SHOW(HOST_EDI); - SHOW(HOST_EBP); - SHOW(HOST_CS); - SHOW(HOST_SS); - SHOW(HOST_DS); - SHOW(HOST_FS); - SHOW(HOST_ES); - SHOW(HOST_GS); - - printf("\n"); - printf("#endif\n"); - return(0); -} - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/kernel/skas/util/mk_ptregs-x86_64.c b/arch/um/kernel/skas/util/mk_ptregs-x86_64.c deleted file mode 100644 index 5fccbfe35f78..000000000000 --- a/arch/um/kernel/skas/util/mk_ptregs-x86_64.c +++ /dev/null @@ -1,66 +0,0 @@ -/* - * Copyright 2003 PathScale, Inc. - * - * Licensed under the GPL - */ - -#include -#include - -#define SHOW(name) \ - printf("#define %s (%d / sizeof(unsigned long))\n", #name, name) - -int main(int argc, char **argv) -{ - printf("/* Automatically generated by " - "arch/um/kernel/skas/util/mk_ptregs */\n"); - printf("\n"); - printf("#ifndef __SKAS_PT_REGS_\n"); - printf("#define __SKAS_PT_REGS_\n"); - SHOW(HOST_FRAME_SIZE); - SHOW(HOST_RBX); - SHOW(HOST_RCX); - SHOW(HOST_RDI); - SHOW(HOST_RSI); - SHOW(HOST_RDX); - SHOW(HOST_RBP); - SHOW(HOST_RAX); - SHOW(HOST_R8); - SHOW(HOST_R9); - SHOW(HOST_R10); - SHOW(HOST_R11); - SHOW(HOST_R12); - SHOW(HOST_R13); - SHOW(HOST_R14); - SHOW(HOST_R15); - SHOW(HOST_ORIG_RAX); - SHOW(HOST_CS); - SHOW(HOST_SS); - SHOW(HOST_EFLAGS); -#if 0 - SHOW(HOST_FS); - SHOW(HOST_GS); - SHOW(HOST_DS); - SHOW(HOST_ES); -#endif - - SHOW(HOST_IP); - SHOW(HOST_SP); - printf("#define HOST_FP_SIZE 0\n"); - printf("#define HOST_XFP_SIZE 0\n"); - printf("\n"); - printf("\n"); - printf("#endif\n"); - return(0); -} - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/os-Linux/elf_aux.c b/arch/um/os-Linux/elf_aux.c index ab33cb3c74ec..5a99dd3fbed0 100644 --- a/arch/um/os-Linux/elf_aux.c +++ b/arch/um/os-Linux/elf_aux.c @@ -12,7 +12,7 @@ #include "init.h" #include "elf_user.h" #include "mem_user.h" -#include +#include /* Use the one from the kernel - the host may miss it, if having old headers. */ #if UM_ELF_CLASS == UM_ELFCLASS32 diff --git a/arch/um/os-Linux/util/Makefile b/arch/um/os-Linux/util/Makefile deleted file mode 100644 index 9778aed0c314..000000000000 --- a/arch/um/os-Linux/util/Makefile +++ /dev/null @@ -1,4 +0,0 @@ -hostprogs-y := mk_user_constants -always := $(hostprogs-y) - -HOSTCFLAGS_mk_user_constants.o := -I$(objtree)/arch/um diff --git a/arch/um/os-Linux/util/mk_user_constants.c b/arch/um/os-Linux/util/mk_user_constants.c deleted file mode 100644 index 4838f30eecf0..000000000000 --- a/arch/um/os-Linux/util/mk_user_constants.c +++ /dev/null @@ -1,23 +0,0 @@ -#include -#include - -int main(int argc, char **argv) -{ - printf("/*\n"); - printf(" * Generated by mk_user_constants\n"); - printf(" */\n"); - printf("\n"); - printf("#ifndef __UM_USER_CONSTANTS_H\n"); - printf("#define __UM_USER_CONSTANTS_H\n"); - printf("\n"); - /* I'd like to use FRAME_SIZE from ptrace.h here, but that's wrong on - * x86_64 (216 vs 168 bytes). user_regs_struct is the correct size on - * both x86_64 and i386. - */ - printf("#define UM_FRAME_SIZE %d\n", __UM_FRAME_SIZE); - - printf("\n"); - printf("#endif\n"); - - return(0); -} diff --git a/arch/um/sys-i386/Makefile b/arch/um/sys-i386/Makefile index 4ca2a229da49..6dfeb70f6957 100644 --- a/arch/um/sys-i386/Makefile +++ b/arch/um/sys-i386/Makefile @@ -18,6 +18,4 @@ module.c-dir = kernel $(obj)/stub_segv.o : _c_flags = $(call unprofile,$(CFLAGS)) -subdir- := util - include arch/um/scripts/Makefile.unmap diff --git a/arch/um/sys-i386/kernel-offsets.c b/arch/um/sys-i386/kernel-offsets.c index a1070af2bcd8..35db85057506 100644 --- a/arch/um/sys-i386/kernel-offsets.c +++ b/arch/um/sys-i386/kernel-offsets.c @@ -18,9 +18,9 @@ void foo(void) { - OFFSET(TASK_DEBUGREGS, task_struct, thread.arch.debugregs); + OFFSET(HOST_TASK_DEBUGREGS, task_struct, thread.arch.debugregs); #ifdef CONFIG_MODE_TT - OFFSET(TASK_EXTERN_PID, task_struct, thread.mode.tt.extern_pid); + OFFSET(HOST_TASK_EXTERN_PID, task_struct, thread.mode.tt.extern_pid); #endif #include } diff --git a/arch/um/sys-i386/user-offsets.c b/arch/um/sys-i386/user-offsets.c index 3ceaabceb3d7..677fc26a9bbe 100644 --- a/arch/um/sys-i386/user-offsets.c +++ b/arch/um/sys-i386/user-offsets.c @@ -7,47 +7,48 @@ #define DEFINE(sym, val) \ asm volatile("\n->" #sym " %0 " #val : : "i" (val)) +#define DEFINE_LONGS(sym, val) \ + asm volatile("\n->" #sym " %0 " #val : : "i" (val/sizeof(unsigned long))) + #define OFFSET(sym, str, mem) \ DEFINE(sym, offsetof(struct str, mem)); void foo(void) { - OFFSET(SC_IP, sigcontext, eip); - OFFSET(SC_SP, sigcontext, esp); - OFFSET(SC_FS, sigcontext, fs); - OFFSET(SC_GS, sigcontext, gs); - OFFSET(SC_DS, sigcontext, ds); - OFFSET(SC_ES, sigcontext, es); - OFFSET(SC_SS, sigcontext, ss); - OFFSET(SC_CS, sigcontext, cs); - OFFSET(SC_EFLAGS, sigcontext, eflags); - OFFSET(SC_EAX, sigcontext, eax); - OFFSET(SC_EBX, sigcontext, ebx); - OFFSET(SC_ECX, sigcontext, ecx); - OFFSET(SC_EDX, sigcontext, edx); - OFFSET(SC_EDI, sigcontext, edi); - OFFSET(SC_ESI, sigcontext, esi); - OFFSET(SC_EBP, sigcontext, ebp); - OFFSET(SC_TRAPNO, sigcontext, trapno); - OFFSET(SC_ERR, sigcontext, err); - OFFSET(SC_CR2, sigcontext, cr2); - OFFSET(SC_FPSTATE, sigcontext, fpstate); - OFFSET(SC_SIGMASK, sigcontext, oldmask); - OFFSET(SC_FP_CW, _fpstate, cw); - OFFSET(SC_FP_SW, _fpstate, sw); - OFFSET(SC_FP_TAG, _fpstate, tag); - OFFSET(SC_FP_IPOFF, _fpstate, ipoff); - OFFSET(SC_FP_CSSEL, _fpstate, cssel); - OFFSET(SC_FP_DATAOFF, _fpstate, dataoff); - OFFSET(SC_FP_DATASEL, _fpstate, datasel); - OFFSET(SC_FP_ST, _fpstate, _st); - OFFSET(SC_FXSR_ENV, _fpstate, _fxsr_env); + OFFSET(HOST_SC_IP, sigcontext, eip); + OFFSET(HOST_SC_SP, sigcontext, esp); + OFFSET(HOST_SC_FS, sigcontext, fs); + OFFSET(HOST_SC_GS, sigcontext, gs); + OFFSET(HOST_SC_DS, sigcontext, ds); + OFFSET(HOST_SC_ES, sigcontext, es); + OFFSET(HOST_SC_SS, sigcontext, ss); + OFFSET(HOST_SC_CS, sigcontext, cs); + OFFSET(HOST_SC_EFLAGS, sigcontext, eflags); + OFFSET(HOST_SC_EAX, sigcontext, eax); + OFFSET(HOST_SC_EBX, sigcontext, ebx); + OFFSET(HOST_SC_ECX, sigcontext, ecx); + OFFSET(HOST_SC_EDX, sigcontext, edx); + OFFSET(HOST_SC_EDI, sigcontext, edi); + OFFSET(HOST_SC_ESI, sigcontext, esi); + OFFSET(HOST_SC_EBP, sigcontext, ebp); + OFFSET(HOST_SC_TRAPNO, sigcontext, trapno); + OFFSET(HOST_SC_ERR, sigcontext, err); + OFFSET(HOST_SC_CR2, sigcontext, cr2); + OFFSET(HOST_SC_FPSTATE, sigcontext, fpstate); + OFFSET(HOST_SC_SIGMASK, sigcontext, oldmask); + OFFSET(HOST_SC_FP_CW, _fpstate, cw); + OFFSET(HOST_SC_FP_SW, _fpstate, sw); + OFFSET(HOST_SC_FP_TAG, _fpstate, tag); + OFFSET(HOST_SC_FP_IPOFF, _fpstate, ipoff); + OFFSET(HOST_SC_FP_CSSEL, _fpstate, cssel); + OFFSET(HOST_SC_FP_DATAOFF, _fpstate, dataoff); + OFFSET(HOST_SC_FP_DATASEL, _fpstate, datasel); + OFFSET(HOST_SC_FP_ST, _fpstate, _st); + OFFSET(HOST_SC_FXSR_ENV, _fpstate, _fxsr_env); - DEFINE(HOST_FRAME_SIZE, FRAME_SIZE); - DEFINE(HOST_FP_SIZE, - sizeof(struct user_i387_struct) / sizeof(unsigned long)); - DEFINE(HOST_XFP_SIZE, - sizeof(struct user_fxsr_struct) / sizeof(unsigned long)); + DEFINE_LONGS(HOST_FRAME_SIZE, FRAME_SIZE); + DEFINE_LONGS(HOST_FP_SIZE, sizeof(struct user_i387_struct)); + DEFINE_LONGS(HOST_XFP_SIZE, sizeof(struct user_fxsr_struct)); DEFINE(HOST_IP, EIP); DEFINE(HOST_SP, UESP); @@ -65,5 +66,5 @@ void foo(void) DEFINE(HOST_FS, FS); DEFINE(HOST_ES, ES); DEFINE(HOST_GS, GS); - DEFINE(__UM_FRAME_SIZE, sizeof(struct user_regs_struct)); + DEFINE(UM_FRAME_SIZE, sizeof(struct user_regs_struct)); } diff --git a/arch/um/sys-i386/util/Makefile b/arch/um/sys-i386/util/Makefile deleted file mode 100644 index bf61afd0b045..000000000000 --- a/arch/um/sys-i386/util/Makefile +++ /dev/null @@ -1,5 +0,0 @@ -hostprogs-y := mk_sc mk_thread -always := $(hostprogs-y) - -HOSTCFLAGS_mk_sc.o := -I$(objtree)/arch/um -HOSTCFLAGS_mk_thread.o := -I$(objtree)/arch/um diff --git a/arch/um/sys-i386/util/mk_sc.c b/arch/um/sys-i386/util/mk_sc.c deleted file mode 100644 index 04c0d73433aa..000000000000 --- a/arch/um/sys-i386/util/mk_sc.c +++ /dev/null @@ -1,51 +0,0 @@ -#include -#include - -#define SC_OFFSET(name, field) \ - printf("#define " #name "(sc) *((unsigned long *) &(((char *) (sc))[%d]))\n",\ - name) - -#define SC_FP_OFFSET(name, field) \ - printf("#define " #name \ - "(sc) *((unsigned long *) &(((char *) (SC_FPSTATE(sc)))[%d]))\n",\ - name) - -#define SC_FP_OFFSET_PTR(name, field, type) \ - printf("#define " #name \ - "(sc) ((" type " *) &(((char *) (SC_FPSTATE(sc)))[%d]))\n",\ - name) - -int main(int argc, char **argv) -{ - SC_OFFSET(SC_IP, eip); - SC_OFFSET(SC_SP, esp); - SC_OFFSET(SC_FS, fs); - SC_OFFSET(SC_GS, gs); - SC_OFFSET(SC_DS, ds); - SC_OFFSET(SC_ES, es); - SC_OFFSET(SC_SS, ss); - SC_OFFSET(SC_CS, cs); - SC_OFFSET(SC_EFLAGS, eflags); - SC_OFFSET(SC_EAX, eax); - SC_OFFSET(SC_EBX, ebx); - SC_OFFSET(SC_ECX, ecx); - SC_OFFSET(SC_EDX, edx); - SC_OFFSET(SC_EDI, edi); - SC_OFFSET(SC_ESI, esi); - SC_OFFSET(SC_EBP, ebp); - SC_OFFSET(SC_TRAPNO, trapno); - SC_OFFSET(SC_ERR, err); - SC_OFFSET(SC_CR2, cr2); - SC_OFFSET(SC_FPSTATE, fpstate); - SC_OFFSET(SC_SIGMASK, oldmask); - SC_FP_OFFSET(SC_FP_CW, cw); - SC_FP_OFFSET(SC_FP_SW, sw); - SC_FP_OFFSET(SC_FP_TAG, tag); - SC_FP_OFFSET(SC_FP_IPOFF, ipoff); - SC_FP_OFFSET(SC_FP_CSSEL, cssel); - SC_FP_OFFSET(SC_FP_DATAOFF, dataoff); - SC_FP_OFFSET(SC_FP_DATASEL, datasel); - SC_FP_OFFSET_PTR(SC_FP_ST, _st, "struct _fpstate"); - SC_FP_OFFSET_PTR(SC_FXSR_ENV, _fxsr_env, "void"); - return(0); -} diff --git a/arch/um/sys-i386/util/mk_thread.c b/arch/um/sys-i386/util/mk_thread.c deleted file mode 100644 index 7470d0dda67e..000000000000 --- a/arch/um/sys-i386/util/mk_thread.c +++ /dev/null @@ -1,22 +0,0 @@ -#include -#include - -int main(int argc, char **argv) -{ - printf("/*\n"); - printf(" * Generated by mk_thread\n"); - printf(" */\n"); - printf("\n"); - printf("#ifndef __UM_THREAD_H\n"); - printf("#define __UM_THREAD_H\n"); - printf("\n"); - printf("#define TASK_DEBUGREGS(task) ((unsigned long *) " - "&(((char *) (task))[%d]))\n", TASK_DEBUGREGS); -#ifdef TASK_EXTERN_PID - printf("#define TASK_EXTERN_PID(task) *((int *) &(((char *) (task))[%d]))\n", - TASK_EXTERN_PID); -#endif - printf("\n"); - printf("#endif\n"); - return(0); -} diff --git a/arch/um/sys-x86_64/Makefile b/arch/um/sys-x86_64/Makefile index f0ab574d1e95..06c3633457a2 100644 --- a/arch/um/sys-x86_64/Makefile +++ b/arch/um/sys-x86_64/Makefile @@ -29,6 +29,4 @@ module.c-dir = kernel $(obj)/stub_segv.o: _c_flags = $(call unprofile,$(CFLAGS)) -subdir- := util - include arch/um/scripts/Makefile.unmap diff --git a/arch/um/sys-x86_64/kernel-offsets.c b/arch/um/sys-x86_64/kernel-offsets.c index 998541eade41..bfcb104b846e 100644 --- a/arch/um/sys-x86_64/kernel-offsets.c +++ b/arch/um/sys-x86_64/kernel-offsets.c @@ -19,7 +19,7 @@ void foo(void) { #ifdef CONFIG_MODE_TT - OFFSET(TASK_EXTERN_PID, task_struct, thread.mode.tt.extern_pid); + OFFSET(HOST_TASK_EXTERN_PID, task_struct, thread.mode.tt.extern_pid); #endif #include } diff --git a/arch/um/sys-x86_64/user-offsets.c b/arch/um/sys-x86_64/user-offsets.c index 513d17ceafd4..5a585bfbb8c2 100644 --- a/arch/um/sys-x86_64/user-offsets.c +++ b/arch/um/sys-x86_64/user-offsets.c @@ -16,71 +16,76 @@ typedef __u32 u32; #define DEFINE(sym, val) \ asm volatile("\n->" #sym " %0 " #val : : "i" (val)) +#define DEFINE_LONGS(sym, val) \ + asm volatile("\n->" #sym " %0 " #val : : "i" (val/sizeof(unsigned long))) + #define OFFSET(sym, str, mem) \ DEFINE(sym, offsetof(struct str, mem)); void foo(void) { - OFFSET(SC_RBX, sigcontext, rbx); - OFFSET(SC_RCX, sigcontext, rcx); - OFFSET(SC_RDX, sigcontext, rdx); - OFFSET(SC_RSI, sigcontext, rsi); - OFFSET(SC_RDI, sigcontext, rdi); - OFFSET(SC_RBP, sigcontext, rbp); - OFFSET(SC_RAX, sigcontext, rax); - OFFSET(SC_R8, sigcontext, r8); - OFFSET(SC_R9, sigcontext, r9); - OFFSET(SC_R10, sigcontext, r10); - OFFSET(SC_R11, sigcontext, r11); - OFFSET(SC_R12, sigcontext, r12); - OFFSET(SC_R13, sigcontext, r13); - OFFSET(SC_R14, sigcontext, r14); - OFFSET(SC_R15, sigcontext, r15); - OFFSET(SC_IP, sigcontext, rip); - OFFSET(SC_SP, sigcontext, rsp); - OFFSET(SC_CR2, sigcontext, cr2); - OFFSET(SC_ERR, sigcontext, err); - OFFSET(SC_TRAPNO, sigcontext, trapno); - OFFSET(SC_CS, sigcontext, cs); - OFFSET(SC_FS, sigcontext, fs); - OFFSET(SC_GS, sigcontext, gs); - OFFSET(SC_EFLAGS, sigcontext, eflags); - OFFSET(SC_SIGMASK, sigcontext, oldmask); + OFFSET(HOST_SC_RBX, sigcontext, rbx); + OFFSET(HOST_SC_RCX, sigcontext, rcx); + OFFSET(HOST_SC_RDX, sigcontext, rdx); + OFFSET(HOST_SC_RSI, sigcontext, rsi); + OFFSET(HOST_SC_RDI, sigcontext, rdi); + OFFSET(HOST_SC_RBP, sigcontext, rbp); + OFFSET(HOST_SC_RAX, sigcontext, rax); + OFFSET(HOST_SC_R8, sigcontext, r8); + OFFSET(HOST_SC_R9, sigcontext, r9); + OFFSET(HOST_SC_R10, sigcontext, r10); + OFFSET(HOST_SC_R11, sigcontext, r11); + OFFSET(HOST_SC_R12, sigcontext, r12); + OFFSET(HOST_SC_R13, sigcontext, r13); + OFFSET(HOST_SC_R14, sigcontext, r14); + OFFSET(HOST_SC_R15, sigcontext, r15); + OFFSET(HOST_SC_IP, sigcontext, rip); + OFFSET(HOST_SC_SP, sigcontext, rsp); + OFFSET(HOST_SC_CR2, sigcontext, cr2); + OFFSET(HOST_SC_ERR, sigcontext, err); + OFFSET(HOST_SC_TRAPNO, sigcontext, trapno); + OFFSET(HOST_SC_CS, sigcontext, cs); + OFFSET(HOST_SC_FS, sigcontext, fs); + OFFSET(HOST_SC_GS, sigcontext, gs); + OFFSET(HOST_SC_EFLAGS, sigcontext, eflags); + OFFSET(HOST_SC_SIGMASK, sigcontext, oldmask); #if 0 - OFFSET(SC_ORIG_RAX, sigcontext, orig_rax); - OFFSET(SC_DS, sigcontext, ds); - OFFSET(SC_ES, sigcontext, es); - OFFSET(SC_SS, sigcontext, ss); + OFFSET(HOST_SC_ORIG_RAX, sigcontext, orig_rax); + OFFSET(HOST_SC_DS, sigcontext, ds); + OFFSET(HOST_SC_ES, sigcontext, es); + OFFSET(HOST_SC_SS, sigcontext, ss); #endif - DEFINE(HOST_FRAME_SIZE, FRAME_SIZE); - DEFINE(HOST_RBX, RBX); - DEFINE(HOST_RCX, RCX); - DEFINE(HOST_RDI, RDI); - DEFINE(HOST_RSI, RSI); - DEFINE(HOST_RDX, RDX); - DEFINE(HOST_RBP, RBP); - DEFINE(HOST_RAX, RAX); - DEFINE(HOST_R8, R8); - DEFINE(HOST_R9, R9); - DEFINE(HOST_R10, R10); - DEFINE(HOST_R11, R11); - DEFINE(HOST_R12, R12); - DEFINE(HOST_R13, R13); - DEFINE(HOST_R14, R14); - DEFINE(HOST_R15, R15); - DEFINE(HOST_ORIG_RAX, ORIG_RAX); - DEFINE(HOST_CS, CS); - DEFINE(HOST_SS, SS); - DEFINE(HOST_EFLAGS, EFLAGS); + DEFINE_LONGS(HOST_FRAME_SIZE, FRAME_SIZE); + DEFINE(HOST_FP_SIZE, 0); + DEFINE(HOST_XFP_SIZE, 0); + DEFINE_LONGS(HOST_RBX, RBX); + DEFINE_LONGS(HOST_RCX, RCX); + DEFINE_LONGS(HOST_RDI, RDI); + DEFINE_LONGS(HOST_RSI, RSI); + DEFINE_LONGS(HOST_RDX, RDX); + DEFINE_LONGS(HOST_RBP, RBP); + DEFINE_LONGS(HOST_RAX, RAX); + DEFINE_LONGS(HOST_R8, R8); + DEFINE_LONGS(HOST_R9, R9); + DEFINE_LONGS(HOST_R10, R10); + DEFINE_LONGS(HOST_R11, R11); + DEFINE_LONGS(HOST_R12, R12); + DEFINE_LONGS(HOST_R13, R13); + DEFINE_LONGS(HOST_R14, R14); + DEFINE_LONGS(HOST_R15, R15); + DEFINE_LONGS(HOST_ORIG_RAX, ORIG_RAX); + DEFINE_LONGS(HOST_CS, CS); + DEFINE_LONGS(HOST_SS, SS); + DEFINE_LONGS(HOST_EFLAGS, EFLAGS); #if 0 - DEFINE(HOST_FS, FS); - DEFINE(HOST_GS, GS); - DEFINE(HOST_DS, DS); - DEFINE(HOST_ES, ES); + DEFINE_LONGS(HOST_FS, FS); + DEFINE_LONGS(HOST_GS, GS); + DEFINE_LONGS(HOST_DS, DS); + DEFINE_LONGS(HOST_ES, ES); #endif - DEFINE(HOST_IP, RIP); - DEFINE(HOST_SP, RSP); - DEFINE(__UM_FRAME_SIZE, sizeof(struct user_regs_struct)); + DEFINE_LONGS(HOST_IP, RIP); + DEFINE_LONGS(HOST_SP, RSP); + DEFINE(UM_FRAME_SIZE, sizeof(struct user_regs_struct)); } diff --git a/arch/um/sys-x86_64/util/Makefile b/arch/um/sys-x86_64/util/Makefile deleted file mode 100644 index 75b052cfc206..000000000000 --- a/arch/um/sys-x86_64/util/Makefile +++ /dev/null @@ -1,8 +0,0 @@ -# Copyright 2003 - 2004 Pathscale, Inc -# Released under the GPL - -hostprogs-y := mk_sc mk_thread -always := $(hostprogs-y) - -HOSTCFLAGS_mk_sc.o := -I$(objtree)/arch/um -HOSTCFLAGS_mk_thread.o := -I$(objtree)/arch/um diff --git a/arch/um/sys-x86_64/util/mk_sc.c b/arch/um/sys-x86_64/util/mk_sc.c deleted file mode 100644 index 7619bc377c1f..000000000000 --- a/arch/um/sys-x86_64/util/mk_sc.c +++ /dev/null @@ -1,47 +0,0 @@ -/* Copyright (C) 2003 - 2004 PathScale, Inc - * Released under the GPL - */ - -#include -#include - -#define SC_OFFSET(name) \ - printf("#define " #name \ - "(sc) *((unsigned long *) &(((char *) (sc))[%d]))\n",\ - name) - -int main(int argc, char **argv) -{ - SC_OFFSET(SC_RBX); - SC_OFFSET(SC_RCX); - SC_OFFSET(SC_RDX); - SC_OFFSET(SC_RSI); - SC_OFFSET(SC_RDI); - SC_OFFSET(SC_RBP); - SC_OFFSET(SC_RAX); - SC_OFFSET(SC_R8); - SC_OFFSET(SC_R9); - SC_OFFSET(SC_R10); - SC_OFFSET(SC_R11); - SC_OFFSET(SC_R12); - SC_OFFSET(SC_R13); - SC_OFFSET(SC_R14); - SC_OFFSET(SC_R15); - SC_OFFSET(SC_IP); - SC_OFFSET(SC_SP); - SC_OFFSET(SC_CR2); - SC_OFFSET(SC_ERR); - SC_OFFSET(SC_TRAPNO); - SC_OFFSET(SC_CS); - SC_OFFSET(SC_FS); - SC_OFFSET(SC_GS); - SC_OFFSET(SC_EFLAGS); - SC_OFFSET(SC_SIGMASK); -#if 0 - SC_OFFSET(SC_ORIG_RAX); - SC_OFFSET(SC_DS); - SC_OFFSET(SC_ES); - SC_OFFSET(SC_SS); -#endif - return(0); -} diff --git a/arch/um/sys-x86_64/util/mk_thread.c b/arch/um/sys-x86_64/util/mk_thread.c deleted file mode 100644 index 15517396e9cf..000000000000 --- a/arch/um/sys-x86_64/util/mk_thread.c +++ /dev/null @@ -1,20 +0,0 @@ -#include -#include - -int main(int argc, char **argv) -{ - printf("/*\n"); - printf(" * Generated by mk_thread\n"); - printf(" */\n"); - printf("\n"); - printf("#ifndef __UM_THREAD_H\n"); - printf("#define __UM_THREAD_H\n"); - printf("\n"); -#ifdef TASK_EXTERN_PID - printf("#define TASK_EXTERN_PID(task) *((int *) &(((char *) (task))[%d]))\n", - TASK_EXTERN_PID); -#endif - printf("\n"); - printf("#endif\n"); - return(0); -} diff --git a/arch/um/util/Makefile b/arch/um/util/Makefile deleted file mode 100644 index 4c7551c28033..000000000000 --- a/arch/um/util/Makefile +++ /dev/null @@ -1,5 +0,0 @@ -hostprogs-y := mk_task mk_constants -always := $(hostprogs-y) - -HOSTCFLAGS_mk_task.o := -I$(objtree)/arch/um -HOSTCFLAGS_mk_constants.o := -I$(objtree)/arch/um diff --git a/arch/um/util/mk_constants.c b/arch/um/util/mk_constants.c deleted file mode 100644 index ab217becc36a..000000000000 --- a/arch/um/util/mk_constants.c +++ /dev/null @@ -1,32 +0,0 @@ -#include -#include - -#define SHOW_INT(sym) printf("#define %s %d\n", #sym, sym) -#define SHOW_STR(sym) printf("#define %s %s\n", #sym, sym) - -int main(int argc, char **argv) -{ - printf("/*\n"); - printf(" * Generated by mk_constants\n"); - printf(" */\n"); - printf("\n"); - printf("#ifndef __UM_CONSTANTS_H\n"); - printf("#define __UM_CONSTANTS_H\n"); - printf("\n"); - - SHOW_INT(UM_KERN_PAGE_SIZE); - - SHOW_STR(UM_KERN_EMERG); - SHOW_STR(UM_KERN_ALERT); - SHOW_STR(UM_KERN_CRIT); - SHOW_STR(UM_KERN_ERR); - SHOW_STR(UM_KERN_WARNING); - SHOW_STR(UM_KERN_NOTICE); - SHOW_STR(UM_KERN_INFO); - SHOW_STR(UM_KERN_DEBUG); - - SHOW_INT(UM_NSEC_PER_SEC); - printf("\n"); - printf("#endif\n"); - return(0); -} diff --git a/arch/um/util/mk_task.c b/arch/um/util/mk_task.c deleted file mode 100644 index 36c9606505e2..000000000000 --- a/arch/um/util/mk_task.c +++ /dev/null @@ -1,30 +0,0 @@ -#include -#include - -void print_ptr(char *name, char *type, int offset) -{ - printf("#define %s(task) ((%s *) &(((char *) (task))[%d]))\n", name, type, - offset); -} - -void print(char *name, char *type, int offset) -{ - printf("#define %s(task) *((%s *) &(((char *) (task))[%d]))\n", name, type, - offset); -} - -int main(int argc, char **argv) -{ - printf("/*\n"); - printf(" * Generated by mk_task\n"); - printf(" */\n"); - printf("\n"); - printf("#ifndef __TASK_H\n"); - printf("#define __TASK_H\n"); - printf("\n"); - print_ptr("TASK_REGS", "union uml_pt_regs", TASK_REGS); - print("TASK_PID", "int", TASK_PID); - printf("\n"); - printf("#endif\n"); - return(0); -} From 666002218d59db271e5c1ede1d80227170c51987 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Wed, 28 Sep 2005 22:32:57 +0100 Subject: [PATCH 236/352] [PATCH] proc_mkdir() should be used to create procfs directories A bunch of create_proc_dir_entry() calls creating directories had crept in since the last sweep; converted to proc_mkdir(). Signed-off-by: Al Viro Signed-off-by: Linus Torvalds --- drivers/char/drm/drm_drv.c | 2 +- drivers/char/drm/drm_proc.c | 2 +- drivers/isdn/divert/divert_procfs.c | 6 +++--- drivers/isdn/hardware/eicon/diva_didd.c | 6 ++---- drivers/isdn/hardware/eicon/divasproc.c | 2 +- drivers/isdn/hysdn/hysdn_procconf.c | 2 +- drivers/media/video/cpia.c | 2 +- drivers/net/ibmveth.c | 6 +++--- drivers/net/irda/vlsi_ir.c | 4 ++-- drivers/net/pppoe.c | 4 ++-- drivers/net/sk98lin/skge.c | 8 ++++---- drivers/scsi/sg.c | 3 +-- drivers/usb/media/vicam.c | 4 ++-- net/core/pktgen.c | 23 ++++++----------------- net/ieee80211/ieee80211_module.c | 2 +- 15 files changed, 31 insertions(+), 45 deletions(-) diff --git a/drivers/char/drm/drm_drv.c b/drivers/char/drm/drm_drv.c index 6ba48f346fcf..041bb47b5c39 100644 --- a/drivers/char/drm/drm_drv.c +++ b/drivers/char/drm/drm_drv.c @@ -376,7 +376,7 @@ static int __init drm_core_init(void) goto err_p2; } - drm_proc_root = create_proc_entry("dri", S_IFDIR, NULL); + drm_proc_root = proc_mkdir("dri", NULL); if (!drm_proc_root) { DRM_ERROR("Cannot create /proc/dri\n"); ret = -1; diff --git a/drivers/char/drm/drm_proc.c b/drivers/char/drm/drm_proc.c index 32d2bb99462c..977961002488 100644 --- a/drivers/char/drm/drm_proc.c +++ b/drivers/char/drm/drm_proc.c @@ -95,7 +95,7 @@ int drm_proc_init(drm_device_t *dev, int minor, char name[64]; sprintf(name, "%d", minor); - *dev_root = create_proc_entry(name, S_IFDIR, root); + *dev_root = proc_mkdir(name, root); if (!*dev_root) { DRM_ERROR("Cannot create /proc/dri/%s\n", name); return -1; diff --git a/drivers/isdn/divert/divert_procfs.c b/drivers/isdn/divert/divert_procfs.c index e1f0d87de0eb..0b0ea26023e5 100644 --- a/drivers/isdn/divert/divert_procfs.c +++ b/drivers/isdn/divert/divert_procfs.c @@ -287,12 +287,12 @@ divert_dev_init(void) init_waitqueue_head(&rd_queue); #ifdef CONFIG_PROC_FS - isdn_proc_entry = create_proc_entry("isdn", S_IFDIR | S_IRUGO | S_IXUGO, proc_net); + isdn_proc_entry = proc_mkdir("net/isdn", NULL); if (!isdn_proc_entry) return (-1); isdn_divert_entry = create_proc_entry("divert", S_IFREG | S_IRUGO, isdn_proc_entry); if (!isdn_divert_entry) { - remove_proc_entry("isdn", proc_net); + remove_proc_entry("net/isdn", NULL); return (-1); } isdn_divert_entry->proc_fops = &isdn_fops; @@ -312,7 +312,7 @@ divert_dev_deinit(void) #ifdef CONFIG_PROC_FS remove_proc_entry("divert", isdn_proc_entry); - remove_proc_entry("isdn", proc_net); + remove_proc_entry("net/isdn", NULL); #endif /* CONFIG_PROC_FS */ return (0); diff --git a/drivers/isdn/hardware/eicon/diva_didd.c b/drivers/isdn/hardware/eicon/diva_didd.c index 7fdf8ae5be52..27204f4b111a 100644 --- a/drivers/isdn/hardware/eicon/diva_didd.c +++ b/drivers/isdn/hardware/eicon/diva_didd.c @@ -30,8 +30,6 @@ static char *DRIVERNAME = static char *DRIVERLNAME = "divadidd"; char *DRIVERRELEASE_DIDD = "2.0"; -static char *main_proc_dir = "eicon"; - MODULE_DESCRIPTION("DIDD table driver for diva drivers"); MODULE_AUTHOR("Cytronics & Melware, Eicon Networks"); MODULE_SUPPORTED_DEVICE("Eicon diva drivers"); @@ -89,7 +87,7 @@ proc_read(char *page, char **start, off_t off, int count, int *eof, static int DIVA_INIT_FUNCTION create_proc(void) { - proc_net_eicon = create_proc_entry(main_proc_dir, S_IFDIR, proc_net); + proc_net_eicon = proc_mkdir("net/eicon", NULL); if (proc_net_eicon) { if ((proc_didd = @@ -105,7 +103,7 @@ static int DIVA_INIT_FUNCTION create_proc(void) static void DIVA_EXIT_FUNCTION remove_proc(void) { remove_proc_entry(DRIVERLNAME, proc_net_eicon); - remove_proc_entry(main_proc_dir, proc_net); + remove_proc_entry("net/eicon", NULL); } static int DIVA_INIT_FUNCTION divadidd_init(void) diff --git a/drivers/isdn/hardware/eicon/divasproc.c b/drivers/isdn/hardware/eicon/divasproc.c index b6435589d459..c12efa6f8429 100644 --- a/drivers/isdn/hardware/eicon/divasproc.c +++ b/drivers/isdn/hardware/eicon/divasproc.c @@ -381,7 +381,7 @@ int create_adapter_proc(diva_os_xdi_adapter_t * a) char tmp[16]; sprintf(tmp, "%s%d", adapter_dir_name, a->controller); - if (!(de = create_proc_entry(tmp, S_IFDIR, proc_net_eicon))) + if (!(de = proc_mkdir(tmp, proc_net_eicon))) return (0); a->proc_adapter_dir = (void *) de; diff --git a/drivers/isdn/hysdn/hysdn_procconf.c b/drivers/isdn/hysdn/hysdn_procconf.c index 5da507e532fc..639582f61f41 100644 --- a/drivers/isdn/hysdn/hysdn_procconf.c +++ b/drivers/isdn/hysdn/hysdn_procconf.c @@ -394,7 +394,7 @@ hysdn_procconf_init(void) hysdn_card *card; uchar conf_name[20]; - hysdn_proc_entry = create_proc_entry(PROC_SUBDIR_NAME, S_IFDIR | S_IRUGO | S_IXUGO, proc_net); + hysdn_proc_entry = proc_mkdir(PROC_SUBDIR_NAME, proc_net); if (!hysdn_proc_entry) { printk(KERN_ERR "HYSDN: unable to create hysdn subdir\n"); return (-1); diff --git a/drivers/media/video/cpia.c b/drivers/media/video/cpia.c index 8c08b7f1ad23..b7ec9bf45085 100644 --- a/drivers/media/video/cpia.c +++ b/drivers/media/video/cpia.c @@ -1397,7 +1397,7 @@ static void destroy_proc_cpia_cam(struct cam_data *cam) static void proc_cpia_create(void) { - cpia_proc_root = create_proc_entry("cpia", S_IFDIR, NULL); + cpia_proc_root = proc_mkdir("cpia", NULL); if (cpia_proc_root) cpia_proc_root->owner = THIS_MODULE; diff --git a/drivers/net/ibmveth.c b/drivers/net/ibmveth.c index 32d5fabd4b10..a2c4dd4fb221 100644 --- a/drivers/net/ibmveth.c +++ b/drivers/net/ibmveth.c @@ -99,7 +99,7 @@ static irqreturn_t ibmveth_interrupt(int irq, void *dev_instance, struct pt_regs static inline void ibmveth_schedule_replenishing(struct ibmveth_adapter*); #ifdef CONFIG_PROC_FS -#define IBMVETH_PROC_DIR "ibmveth" +#define IBMVETH_PROC_DIR "net/ibmveth" static struct proc_dir_entry *ibmveth_proc_dir; #endif @@ -1010,7 +1010,7 @@ static int __devexit ibmveth_remove(struct vio_dev *dev) #ifdef CONFIG_PROC_FS static void ibmveth_proc_register_driver(void) { - ibmveth_proc_dir = create_proc_entry(IBMVETH_PROC_DIR, S_IFDIR, proc_net); + ibmveth_proc_dir = proc_mkdir(IBMVETH_PROC_DIR, NULL); if (ibmveth_proc_dir) { SET_MODULE_OWNER(ibmveth_proc_dir); } @@ -1018,7 +1018,7 @@ static void ibmveth_proc_register_driver(void) static void ibmveth_proc_unregister_driver(void) { - remove_proc_entry(IBMVETH_PROC_DIR, proc_net); + remove_proc_entry(IBMVETH_PROC_DIR, NULL); } static void *ibmveth_seq_start(struct seq_file *seq, loff_t *pos) diff --git a/drivers/net/irda/vlsi_ir.c b/drivers/net/irda/vlsi_ir.c index 6d9de626c967..651c5a6578fd 100644 --- a/drivers/net/irda/vlsi_ir.c +++ b/drivers/net/irda/vlsi_ir.c @@ -1875,11 +1875,11 @@ static int __init vlsi_mod_init(void) sirpulse = !!sirpulse; - /* create_proc_entry returns NULL if !CONFIG_PROC_FS. + /* proc_mkdir returns NULL if !CONFIG_PROC_FS. * Failure to create the procfs entry is handled like running * without procfs - it's not required for the driver to work. */ - vlsi_proc_root = create_proc_entry(PROC_DIR, S_IFDIR, NULL); + vlsi_proc_root = proc_mkdir(PROC_DIR, NULL); if (vlsi_proc_root) { /* protect registered procdir against module removal. * Because we are in the module init path there's no race diff --git a/drivers/net/pppoe.c b/drivers/net/pppoe.c index 82f236cc3b9b..a842ecc60a34 100644 --- a/drivers/net/pppoe.c +++ b/drivers/net/pppoe.c @@ -1070,7 +1070,7 @@ static int __init pppoe_proc_init(void) { struct proc_dir_entry *p; - p = create_proc_entry("pppoe", S_IRUGO, proc_net); + p = create_proc_entry("net/pppoe", S_IRUGO, NULL); if (!p) return -ENOMEM; @@ -1142,7 +1142,7 @@ static void __exit pppoe_exit(void) dev_remove_pack(&pppoes_ptype); dev_remove_pack(&pppoed_ptype); unregister_netdevice_notifier(&pppoe_notifier); - remove_proc_entry("pppoe", proc_net); + remove_proc_entry("net/pppoe", NULL); proto_unregister(&pppoe_sk_proto); } diff --git a/drivers/net/sk98lin/skge.c b/drivers/net/sk98lin/skge.c index 2e72d79a143c..b18c92cb629e 100644 --- a/drivers/net/sk98lin/skge.c +++ b/drivers/net/sk98lin/skge.c @@ -235,7 +235,7 @@ static int SkDrvDeInitAdapter(SK_AC *pAC, int devNbr); * Extern Function Prototypes * ******************************************************************************/ -static const char SKRootName[] = "sk98lin"; +static const char SKRootName[] = "net/sk98lin"; static struct proc_dir_entry *pSkRootDir; extern struct file_operations sk_proc_fops; @@ -5242,20 +5242,20 @@ static int __init skge_init(void) { int error; - pSkRootDir = proc_mkdir(SKRootName, proc_net); + pSkRootDir = proc_mkdir(SKRootName, NULL); if (pSkRootDir) pSkRootDir->owner = THIS_MODULE; error = pci_register_driver(&skge_driver); if (error) - proc_net_remove(SKRootName); + remove_proc_entry(SKRootName, NULL); return error; } static void __exit skge_exit(void) { pci_unregister_driver(&skge_driver); - proc_net_remove(SKRootName); + remove_proc_entry(SKRootName, NULL); } diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c index 4d09a6e4dd2e..ad94367df430 100644 --- a/drivers/scsi/sg.c +++ b/drivers/scsi/sg.c @@ -2849,8 +2849,7 @@ sg_proc_init(void) struct proc_dir_entry *pdep; struct sg_proc_leaf * leaf; - sg_proc_sgp = create_proc_entry(sg_proc_sg_dirname, - S_IFDIR | S_IRUGO | S_IXUGO, NULL); + sg_proc_sgp = proc_mkdir(sg_proc_sg_dirname, NULL); if (!sg_proc_sgp) return 1; for (k = 0; k < num_leaves; ++k) { diff --git a/drivers/usb/media/vicam.c b/drivers/usb/media/vicam.c index 4a5857c53f11..0bc0b1247a6b 100644 --- a/drivers/usb/media/vicam.c +++ b/drivers/usb/media/vicam.c @@ -1148,7 +1148,7 @@ vicam_write_proc_gain(struct file *file, const char *buffer, static void vicam_create_proc_root(void) { - vicam_proc_root = create_proc_entry("video/vicam", S_IFDIR, 0); + vicam_proc_root = proc_mkdir("video/vicam", NULL); if (vicam_proc_root) vicam_proc_root->owner = THIS_MODULE; @@ -1181,7 +1181,7 @@ vicam_create_proc_entry(struct vicam_camera *cam) sprintf(name, "video%d", cam->vdev.minor); - cam->proc_dir = create_proc_entry(name, S_IFDIR, vicam_proc_root); + cam->proc_dir = proc_mkdir(name, vicam_proc_root); if ( !cam->proc_dir ) return; // FIXME: We should probably return an error here diff --git a/net/core/pktgen.c b/net/core/pktgen.c index ef430b1e8e42..b7f2d65a614f 100644 --- a/net/core/pktgen.c +++ b/net/core/pktgen.c @@ -186,7 +186,7 @@ /* Used to help with determining the pkts on receive */ #define PKTGEN_MAGIC 0xbe9be955 -#define PG_PROC_DIR "pktgen" +#define PG_PROC_DIR "net/pktgen" #define MAX_CFLOWS 65536 @@ -1476,18 +1476,7 @@ static int proc_thread_write(struct file *file, const char __user *user_buffer, static int create_proc_dir(void) { - int len; - /* does proc_dir already exists */ - len = strlen(PG_PROC_DIR); - - for (pg_proc_dir = proc_net->subdir; pg_proc_dir; pg_proc_dir=pg_proc_dir->next) { - if ((pg_proc_dir->namelen == len) && - (! memcmp(pg_proc_dir->name, PG_PROC_DIR, len))) - break; - } - - if (!pg_proc_dir) - pg_proc_dir = create_proc_entry(PG_PROC_DIR, S_IFDIR, proc_net); + pg_proc_dir = proc_mkdir(PG_PROC_DIR, NULL); if (!pg_proc_dir) return -ENODEV; @@ -1497,7 +1486,7 @@ static int create_proc_dir(void) static int remove_proc_dir(void) { - remove_proc_entry(PG_PROC_DIR, proc_net); + remove_proc_entry(PG_PROC_DIR, NULL); return 0; } @@ -2908,7 +2897,7 @@ static int pktgen_add_device(struct pktgen_thread *t, const char* ifname) pkt_dev->udp_dst_max = 9; strncpy(pkt_dev->ifname, ifname, 31); - sprintf(pkt_dev->fname, "net/%s/%s", PG_PROC_DIR, ifname); + sprintf(pkt_dev->fname, "%s/%s", PG_PROC_DIR, ifname); if (! pktgen_setup_dev(pkt_dev)) { printk("pktgen: ERROR: pktgen_setup_dev failed.\n"); @@ -2981,7 +2970,7 @@ static int pktgen_create_thread(const char* name, int cpu) spin_lock_init(&t->if_lock); t->cpu = cpu; - sprintf(t->fname, "net/%s/%s", PG_PROC_DIR, t->name); + sprintf(t->fname, "%s/%s", PG_PROC_DIR, t->name); t->proc_ent = create_proc_entry(t->fname, 0600, NULL); if (!t->proc_ent) { printk("pktgen: cannot create %s procfs entry.\n", t->fname); @@ -3064,7 +3053,7 @@ static int __init pg_init(void) create_proc_dir(); - sprintf(module_fname, "net/%s/pgctrl", PG_PROC_DIR); + sprintf(module_fname, "%s/pgctrl", PG_PROC_DIR); module_proc_ent = create_proc_entry(module_fname, 0600, NULL); if (!module_proc_ent) { printk("pktgen: ERROR: cannot create %s procfs entry.\n", module_fname); diff --git a/net/ieee80211/ieee80211_module.c b/net/ieee80211/ieee80211_module.c index 03a47343ddc7..6059e9e37123 100644 --- a/net/ieee80211/ieee80211_module.c +++ b/net/ieee80211/ieee80211_module.c @@ -230,7 +230,7 @@ static int __init ieee80211_init(void) struct proc_dir_entry *e; ieee80211_debug_level = debug; - ieee80211_proc = create_proc_entry(DRV_NAME, S_IFDIR, proc_net); + ieee80211_proc = proc_mkdir(DRV_NAME, proc_net); if (ieee80211_proc == NULL) { IEEE80211_ERROR("Unable to create " DRV_NAME " proc directory\n"); From 87e0f3dbd3693bc4583474ab191cbdd5e3d9d0fa Mon Sep 17 00:00:00 2001 From: Alexey Dobriyan Date: Thu, 29 Sep 2005 00:05:58 +0100 Subject: [PATCH 237/352] [PATCH] n_r3964: drop bogus fmt casts - print pointers with %p - casting pointer structure field to int and printing it with %d... Signed-off-by: Alexey Dobriyan Signed-off-by: Al Viro Signed-off-by: Linus Torvalds --- drivers/char/n_r3964.c | 84 +++++++++++++++++++++--------------------- 1 file changed, 42 insertions(+), 42 deletions(-) diff --git a/drivers/char/n_r3964.c b/drivers/char/n_r3964.c index 2291a87e8ada..97d6dc24b800 100644 --- a/drivers/char/n_r3964.c +++ b/drivers/char/n_r3964.c @@ -229,8 +229,8 @@ static int __init r3964_init(void) TRACE_L("line discipline %d registered", N_R3964); TRACE_L("flags=%x num=%x", tty_ldisc_N_R3964.flags, tty_ldisc_N_R3964.num); - TRACE_L("open=%x", (int)tty_ldisc_N_R3964.open); - TRACE_L("tty_ldisc_N_R3964 = %x", (int)&tty_ldisc_N_R3964); + TRACE_L("open=%p", tty_ldisc_N_R3964.open); + TRACE_L("tty_ldisc_N_R3964 = %p", &tty_ldisc_N_R3964); } else { @@ -267,8 +267,8 @@ static void add_tx_queue(struct r3964_info *pInfo, struct r3964_block_header *pH spin_unlock_irqrestore(&pInfo->lock, flags); - TRACE_Q("add_tx_queue %x, length %d, tx_first = %x", - (int)pHeader, pHeader->length, (int)pInfo->tx_first ); + TRACE_Q("add_tx_queue %p, length %d, tx_first = %p", + pHeader, pHeader->length, pInfo->tx_first ); } static void remove_from_tx_queue(struct r3964_info *pInfo, int error_code) @@ -285,10 +285,10 @@ static void remove_from_tx_queue(struct r3964_info *pInfo, int error_code) return; #ifdef DEBUG_QUEUE - printk("r3964: remove_from_tx_queue: %x, length %d - ", - (int)pHeader, (int)pHeader->length ); + printk("r3964: remove_from_tx_queue: %p, length %u - ", + pHeader, pHeader->length ); for(pDump=pHeader;pDump;pDump=pDump->next) - printk("%x ", (int)pDump); + printk("%p ", pDump); printk("\n"); #endif @@ -319,10 +319,10 @@ static void remove_from_tx_queue(struct r3964_info *pInfo, int error_code) spin_unlock_irqrestore(&pInfo->lock, flags); kfree(pHeader); - TRACE_M("remove_from_tx_queue - kfree %x",(int)pHeader); + TRACE_M("remove_from_tx_queue - kfree %p",pHeader); - TRACE_Q("remove_from_tx_queue: tx_first = %x, tx_last = %x", - (int)pInfo->tx_first, (int)pInfo->tx_last ); + TRACE_Q("remove_from_tx_queue: tx_first = %p, tx_last = %p", + pInfo->tx_first, pInfo->tx_last ); } static void add_rx_queue(struct r3964_info *pInfo, struct r3964_block_header *pHeader) @@ -346,9 +346,9 @@ static void add_rx_queue(struct r3964_info *pInfo, struct r3964_block_header *pH spin_unlock_irqrestore(&pInfo->lock, flags); - TRACE_Q("add_rx_queue: %x, length = %d, rx_first = %x, count = %d", - (int)pHeader, pHeader->length, - (int)pInfo->rx_first, pInfo->blocks_in_rx_queue); + TRACE_Q("add_rx_queue: %p, length = %d, rx_first = %p, count = %d", + pHeader, pHeader->length, + pInfo->rx_first, pInfo->blocks_in_rx_queue); } static void remove_from_rx_queue(struct r3964_info *pInfo, @@ -360,10 +360,10 @@ static void remove_from_rx_queue(struct r3964_info *pInfo, if(pHeader==NULL) return; - TRACE_Q("remove_from_rx_queue: rx_first = %x, rx_last = %x, count = %d", - (int)pInfo->rx_first, (int)pInfo->rx_last, pInfo->blocks_in_rx_queue ); - TRACE_Q("remove_from_rx_queue: %x, length %d", - (int)pHeader, (int)pHeader->length ); + TRACE_Q("remove_from_rx_queue: rx_first = %p, rx_last = %p, count = %d", + pInfo->rx_first, pInfo->rx_last, pInfo->blocks_in_rx_queue ); + TRACE_Q("remove_from_rx_queue: %p, length %u", + pHeader, pHeader->length ); spin_lock_irqsave(&pInfo->lock, flags); @@ -401,10 +401,10 @@ static void remove_from_rx_queue(struct r3964_info *pInfo, spin_unlock_irqrestore(&pInfo->lock, flags); kfree(pHeader); - TRACE_M("remove_from_rx_queue - kfree %x",(int)pHeader); + TRACE_M("remove_from_rx_queue - kfree %p",pHeader); - TRACE_Q("remove_from_rx_queue: rx_first = %x, rx_last = %x, count = %d", - (int)pInfo->rx_first, (int)pInfo->rx_last, pInfo->blocks_in_rx_queue ); + TRACE_Q("remove_from_rx_queue: rx_first = %p, rx_last = %p, count = %d", + pInfo->rx_first, pInfo->rx_last, pInfo->blocks_in_rx_queue ); } static void put_char(struct r3964_info *pInfo, unsigned char ch) @@ -506,8 +506,8 @@ static void transmit_block(struct r3964_info *pInfo) if(tty->driver->write_room) room=tty->driver->write_room(tty); - TRACE_PS("transmit_block %x, room %d, length %d", - (int)pBlock, room, pBlock->length); + TRACE_PS("transmit_block %p, room %d, length %d", + pBlock, room, pBlock->length); while(pInfo->tx_position < pBlock->length) { @@ -588,7 +588,7 @@ static void on_receive_block(struct r3964_info *pInfo) /* prepare struct r3964_block_header: */ pBlock = kmalloc(length+sizeof(struct r3964_block_header), GFP_KERNEL); - TRACE_M("on_receive_block - kmalloc %x",(int)pBlock); + TRACE_M("on_receive_block - kmalloc %p",pBlock); if(pBlock==NULL) return; @@ -868,11 +868,11 @@ static int enable_signals(struct r3964_info *pInfo, pid_t pid, int arg) if(pMsg) { kfree(pMsg); - TRACE_M("enable_signals - msg kfree %x",(int)pMsg); + TRACE_M("enable_signals - msg kfree %p",pMsg); } } kfree(pClient); - TRACE_M("enable_signals - kfree %x",(int)pClient); + TRACE_M("enable_signals - kfree %p",pClient); return 0; } } @@ -890,7 +890,7 @@ static int enable_signals(struct r3964_info *pInfo, pid_t pid, int arg) { /* add client to client list */ pClient=kmalloc(sizeof(struct r3964_client_info), GFP_KERNEL); - TRACE_M("enable_signals - kmalloc %x",(int)pClient); + TRACE_M("enable_signals - kmalloc %p",pClient); if(pClient==NULL) return -ENOMEM; @@ -954,7 +954,7 @@ static void add_msg(struct r3964_client_info *pClient, int msg_id, int arg, queue_the_message: pMsg = kmalloc(sizeof(struct r3964_message), GFP_KERNEL); - TRACE_M("add_msg - kmalloc %x",(int)pMsg); + TRACE_M("add_msg - kmalloc %p",pMsg); if(pMsg==NULL) { return; } @@ -1067,11 +1067,11 @@ static int r3964_open(struct tty_struct *tty) struct r3964_info *pInfo; TRACE_L("open"); - TRACE_L("tty=%x, PID=%d, disc_data=%x", - (int)tty, current->pid, (int)tty->disc_data); + TRACE_L("tty=%p, PID=%d, disc_data=%p", + tty, current->pid, tty->disc_data); pInfo=kmalloc(sizeof(struct r3964_info), GFP_KERNEL); - TRACE_M("r3964_open - info kmalloc %x",(int)pInfo); + TRACE_M("r3964_open - info kmalloc %p",pInfo); if(!pInfo) { @@ -1080,26 +1080,26 @@ static int r3964_open(struct tty_struct *tty) } pInfo->rx_buf = kmalloc(RX_BUF_SIZE, GFP_KERNEL); - TRACE_M("r3964_open - rx_buf kmalloc %x",(int)pInfo->rx_buf); + TRACE_M("r3964_open - rx_buf kmalloc %p",pInfo->rx_buf); if(!pInfo->rx_buf) { printk(KERN_ERR "r3964: failed to alloc receive buffer\n"); kfree(pInfo); - TRACE_M("r3964_open - info kfree %x",(int)pInfo); + TRACE_M("r3964_open - info kfree %p",pInfo); return -ENOMEM; } pInfo->tx_buf = kmalloc(TX_BUF_SIZE, GFP_KERNEL); - TRACE_M("r3964_open - tx_buf kmalloc %x",(int)pInfo->tx_buf); + TRACE_M("r3964_open - tx_buf kmalloc %p",pInfo->tx_buf); if(!pInfo->tx_buf) { printk(KERN_ERR "r3964: failed to alloc transmit buffer\n"); kfree(pInfo->rx_buf); - TRACE_M("r3964_open - rx_buf kfree %x",(int)pInfo->rx_buf); + TRACE_M("r3964_open - rx_buf kfree %p",pInfo->rx_buf); kfree(pInfo); - TRACE_M("r3964_open - info kfree %x",(int)pInfo); + TRACE_M("r3964_open - info kfree %p",pInfo); return -ENOMEM; } @@ -1154,11 +1154,11 @@ static void r3964_close(struct tty_struct *tty) if(pMsg) { kfree(pMsg); - TRACE_M("r3964_close - msg kfree %x",(int)pMsg); + TRACE_M("r3964_close - msg kfree %p",pMsg); } } kfree(pClient); - TRACE_M("r3964_close - client kfree %x",(int)pClient); + TRACE_M("r3964_close - client kfree %p",pClient); pClient=pNext; } /* Remove jobs from tx_queue: */ @@ -1177,11 +1177,11 @@ static void r3964_close(struct tty_struct *tty) /* Free buffers: */ wake_up_interruptible(&pInfo->read_wait); kfree(pInfo->rx_buf); - TRACE_M("r3964_close - rx_buf kfree %x",(int)pInfo->rx_buf); + TRACE_M("r3964_close - rx_buf kfree %p",pInfo->rx_buf); kfree(pInfo->tx_buf); - TRACE_M("r3964_close - tx_buf kfree %x",(int)pInfo->tx_buf); + TRACE_M("r3964_close - tx_buf kfree %p",pInfo->tx_buf); kfree(pInfo); - TRACE_M("r3964_close - info kfree %x",(int)pInfo); + TRACE_M("r3964_close - info kfree %p",pInfo); } static ssize_t r3964_read(struct tty_struct *tty, struct file *file, @@ -1234,7 +1234,7 @@ repeat: count = sizeof(struct r3964_client_message); kfree(pMsg); - TRACE_M("r3964_read - msg kfree %x",(int)pMsg); + TRACE_M("r3964_read - msg kfree %p",pMsg); if (copy_to_user(buf,&theMsg, count)) return -EFAULT; @@ -1279,7 +1279,7 @@ static ssize_t r3964_write(struct tty_struct * tty, struct file * file, * Allocate a buffer for the data and copy it from the buffer with header prepended */ new_data = kmalloc (count+sizeof(struct r3964_block_header), GFP_KERNEL); - TRACE_M("r3964_write - kmalloc %x",(int)new_data); + TRACE_M("r3964_write - kmalloc %p",new_data); if (new_data == NULL) { if (pInfo->flags & R3964_DEBUG) { From 775b048d09c85d87a65a7ccd9c4f9372953a5d95 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 29 Sep 2005 00:07:29 +0100 Subject: [PATCH 238/352] [PATCH] cyblafb: portability fixes, sanitized work with pointers Signed-off-by: Al Viro Acked-by: Knut Petersen Signed-off-by: Linus Torvalds --- drivers/video/cyblafb.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/video/cyblafb.c b/drivers/video/cyblafb.c index ae2762cb5608..6992100a508c 100644 --- a/drivers/video/cyblafb.c +++ b/drivers/video/cyblafb.c @@ -410,20 +410,21 @@ static void cyblafb_imageblit(struct fb_info *info, out32(GE0C,point(image->dx+image->width-1,image->dy+image->height-1)); while(index < index_end) { + const char *p = image->data + index; for(i=0;idata + index))); + out32(GE9C,*(u32*)p); + p+=4; index+=4; } switch(width_dbs) { case 0: break; - case 8: out32(GE9C,*((u8*)((u32)image->data+index))); + case 8: out32(GE9C,*(u8*)p); index+=1; break; - case 16: out32(GE9C,*((u16*)((u32)image->data+index))); + case 16: out32(GE9C,*(u16*)p); index+=2; break; - case 24: out32(GE9C,(u32)(*((u16*)((u32)image->data+index))) | - (u32)(*((u8*)((u32)image->data+index+2)))<<16); + case 24: out32(GE9C,*(u16*)p | *(u8*)(p+2)<<16); index+=3; break; } From 2ad4f86b60b649fd7428265c08d73a3bd360c81b Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 29 Sep 2005 00:09:02 +0100 Subject: [PATCH 239/352] [PATCH] arm/versatile iomem annotations Signed-off-by: Al Viro Signed-off-by: Linus Torvalds --- arch/arm/mach-versatile/core.c | 43 +++++++++++++++-------------- include/asm-arm/arch-versatile/io.h | 6 +++- 2 files changed, 27 insertions(+), 22 deletions(-) diff --git a/arch/arm/mach-versatile/core.c b/arch/arm/mach-versatile/core.c index 3c8862fde51a..58c1330d8638 100644 --- a/arch/arm/mach-versatile/core.c +++ b/arch/arm/mach-versatile/core.c @@ -52,8 +52,9 @@ * * Setup a VA for the Versatile Vectored Interrupt Controller. */ -#define VA_VIC_BASE IO_ADDRESS(VERSATILE_VIC_BASE) -#define VA_SIC_BASE IO_ADDRESS(VERSATILE_SIC_BASE) +#define __io_address(n) __io(IO_ADDRESS(n)) +#define VA_VIC_BASE __io_address(VERSATILE_VIC_BASE) +#define VA_SIC_BASE __io_address(VERSATILE_SIC_BASE) static void vic_mask_irq(unsigned int irq) { @@ -214,7 +215,7 @@ void __init versatile_map_io(void) iotable_init(versatile_io_desc, ARRAY_SIZE(versatile_io_desc)); } -#define VERSATILE_REFCOUNTER (IO_ADDRESS(VERSATILE_SYS_BASE) + VERSATILE_SYS_24MHz_OFFSET) +#define VERSATILE_REFCOUNTER (__io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_24MHz_OFFSET) /* * This is the Versatile sched_clock implementation. This has @@ -231,7 +232,7 @@ unsigned long long sched_clock(void) } -#define VERSATILE_FLASHCTRL (IO_ADDRESS(VERSATILE_SYS_BASE) + VERSATILE_SYS_FLASH_OFFSET) +#define VERSATILE_FLASHCTRL (__io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_FLASH_OFFSET) static int versatile_flash_init(void) { @@ -309,7 +310,7 @@ static struct platform_device smc91x_device = { .resource = smc91x_resources, }; -#define VERSATILE_SYSMCI (IO_ADDRESS(VERSATILE_SYS_BASE) + VERSATILE_SYS_MCI_OFFSET) +#define VERSATILE_SYSMCI (__io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_MCI_OFFSET) unsigned int mmc_status(struct device *dev) { @@ -343,11 +344,11 @@ static const struct icst307_params versatile_oscvco_params = { static void versatile_oscvco_set(struct clk *clk, struct icst307_vco vco) { - unsigned long sys_lock = IO_ADDRESS(VERSATILE_SYS_BASE) + VERSATILE_SYS_LOCK_OFFSET; + void __iomem *sys_lock = __io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_LOCK_OFFSET; #if defined(CONFIG_ARCH_VERSATILE_PB) - unsigned long sys_osc = IO_ADDRESS(VERSATILE_SYS_BASE) + VERSATILE_SYS_OSC4_OFFSET; + void __iomem *sys_osc = __io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_OSC4_OFFSET; #elif defined(CONFIG_MACH_VERSATILE_AB) - unsigned long sys_osc = IO_ADDRESS(VERSATILE_SYS_BASE) + VERSATILE_SYS_OSC1_OFFSET; + void __iomem *sys_osc = __io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_OSC1_OFFSET; #endif u32 val; @@ -483,7 +484,7 @@ static struct clcd_panel epson_2_2_in = { */ static struct clcd_panel *versatile_clcd_panel(void) { - unsigned long sys_clcd = IO_ADDRESS(VERSATILE_SYS_BASE) + VERSATILE_SYS_CLCD_OFFSET; + void __iomem *sys_clcd = __io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_CLCD_OFFSET; struct clcd_panel *panel = &vga; u32 val; @@ -510,7 +511,7 @@ static struct clcd_panel *versatile_clcd_panel(void) */ static void versatile_clcd_disable(struct clcd_fb *fb) { - unsigned long sys_clcd = IO_ADDRESS(VERSATILE_SYS_BASE) + VERSATILE_SYS_CLCD_OFFSET; + void __iomem *sys_clcd = __io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_CLCD_OFFSET; u32 val; val = readl(sys_clcd); @@ -522,7 +523,7 @@ static void versatile_clcd_disable(struct clcd_fb *fb) * If the LCD is Sanyo 2x5 in on the IB2 board, turn the back-light off */ if (fb->panel == &sanyo_2_5_in) { - unsigned long versatile_ib2_ctrl = IO_ADDRESS(VERSATILE_IB2_CTRL); + void __iomem *versatile_ib2_ctrl = __io_address(VERSATILE_IB2_CTRL); unsigned long ctrl; ctrl = readl(versatile_ib2_ctrl); @@ -537,7 +538,7 @@ static void versatile_clcd_disable(struct clcd_fb *fb) */ static void versatile_clcd_enable(struct clcd_fb *fb) { - unsigned long sys_clcd = IO_ADDRESS(VERSATILE_SYS_BASE) + VERSATILE_SYS_CLCD_OFFSET; + void __iomem *sys_clcd = __io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_CLCD_OFFSET; u32 val; val = readl(sys_clcd); @@ -571,7 +572,7 @@ static void versatile_clcd_enable(struct clcd_fb *fb) * If the LCD is Sanyo 2x5 in on the IB2 board, turn the back-light on */ if (fb->panel == &sanyo_2_5_in) { - unsigned long versatile_ib2_ctrl = IO_ADDRESS(VERSATILE_IB2_CTRL); + void __iomem *versatile_ib2_ctrl = __io_address(VERSATILE_IB2_CTRL); unsigned long ctrl; ctrl = readl(versatile_ib2_ctrl); @@ -720,7 +721,7 @@ static struct amba_device *amba_devs[] __initdata = { }; #ifdef CONFIG_LEDS -#define VA_LEDS_BASE (IO_ADDRESS(VERSATILE_SYS_BASE) + VERSATILE_SYS_LED_OFFSET) +#define VA_LEDS_BASE (__io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_LED_OFFSET) static void versatile_leds_event(led_event_t ledevt) { @@ -778,11 +779,11 @@ void __init versatile_init(void) /* * Where is the timer (VA)? */ -#define TIMER0_VA_BASE IO_ADDRESS(VERSATILE_TIMER0_1_BASE) -#define TIMER1_VA_BASE (IO_ADDRESS(VERSATILE_TIMER0_1_BASE) + 0x20) -#define TIMER2_VA_BASE IO_ADDRESS(VERSATILE_TIMER2_3_BASE) -#define TIMER3_VA_BASE (IO_ADDRESS(VERSATILE_TIMER2_3_BASE) + 0x20) -#define VA_IC_BASE IO_ADDRESS(VERSATILE_VIC_BASE) +#define TIMER0_VA_BASE __io_address(VERSATILE_TIMER0_1_BASE) +#define TIMER1_VA_BASE (__io_address(VERSATILE_TIMER0_1_BASE) + 0x20) +#define TIMER2_VA_BASE __io_address(VERSATILE_TIMER2_3_BASE) +#define TIMER3_VA_BASE (__io_address(VERSATILE_TIMER2_3_BASE) + 0x20) +#define VA_IC_BASE __io_address(VERSATILE_VIC_BASE) /* * How long is the timer interval? @@ -877,12 +878,12 @@ static void __init versatile_timer_init(void) * VERSATILE_REFCLK is 32KHz * VERSATILE_TIMCLK is 1MHz */ - val = readl(IO_ADDRESS(VERSATILE_SCTL_BASE)); + val = readl(__io_address(VERSATILE_SCTL_BASE)); writel((VERSATILE_TIMCLK << VERSATILE_TIMER1_EnSel) | (VERSATILE_TIMCLK << VERSATILE_TIMER2_EnSel) | (VERSATILE_TIMCLK << VERSATILE_TIMER3_EnSel) | (VERSATILE_TIMCLK << VERSATILE_TIMER4_EnSel) | val, - IO_ADDRESS(VERSATILE_SCTL_BASE)); + __io_address(VERSATILE_SCTL_BASE)); /* * Initialise to a known state (all timers off) diff --git a/include/asm-arm/arch-versatile/io.h b/include/asm-arm/arch-versatile/io.h index 9f895bf61494..47e904cf25c7 100644 --- a/include/asm-arm/arch-versatile/io.h +++ b/include/asm-arm/arch-versatile/io.h @@ -22,7 +22,11 @@ #define IO_SPACE_LIMIT 0xffffffff -#define __io(a) ((void __iomem *)(a)) +static inline void __iomem *__io(unsigned long addr) +{ + return (void __iomem *)addr; +} +#define __io(a) __io(a) #define __mem_pci(a) (a) #define __mem_isa(a) (a) From 272cd2b71d478371e0a5bf2c76a1e50cbf178698 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 29 Sep 2005 00:10:01 +0100 Subject: [PATCH 240/352] [PATCH] arm/rpc iomem annotations Signed-off-by: Al Viro Signed-off-by: Linus Torvalds --- include/asm-arm/arch-rpc/hardware.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/asm-arm/arch-rpc/hardware.h b/include/asm-arm/arch-rpc/hardware.h index be9754a05c19..9d7f87375aa7 100644 --- a/include/asm-arm/arch-rpc/hardware.h +++ b/include/asm-arm/arch-rpc/hardware.h @@ -15,7 +15,7 @@ #include #ifndef __ASSEMBLY__ -#define IOMEM(x) ((void __iomem *)(x)) +#define IOMEM(x) ((void __iomem *)(unsigned long)(x)) #else #define IOMEM(x) x #endif /* __ASSEMBLY__ */ @@ -52,7 +52,7 @@ /* * IO Addresses */ -#define VIDC_BASE (void __iomem *)0xe0400000 +#define VIDC_BASE IOMEM(0xe0400000) #define EXPMASK_BASE 0xe0360000 #define IOMD_BASE IOMEM(0xe0200000) #define IOC_BASE IOMEM(0xe0200000) From 0cc13a5442901835192ba47427f0f4e4d525d935 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 29 Sep 2005 00:12:13 +0100 Subject: [PATCH 241/352] [PATCH] ia64 basic __user annotations - document places where we pass kernel address to low-level primitive that deals with kernel/user addresses - uintptr_t is unsigned long, not long Signed-off-by: Al Viro Signed-off-by: Linus Torvalds --- include/asm-ia64/uaccess.h | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/include/asm-ia64/uaccess.h b/include/asm-ia64/uaccess.h index 3a7829bb5954..9adb51211c22 100644 --- a/include/asm-ia64/uaccess.h +++ b/include/asm-ia64/uaccess.h @@ -187,8 +187,8 @@ extern void __get_user_unknown (void); ({ \ const __typeof__(*(ptr)) __user *__gu_ptr = (ptr); \ __typeof__ (size) __gu_size = (size); \ - long __gu_err = -EFAULT, __gu_val = 0; \ - \ + long __gu_err = -EFAULT; \ + unsigned long __gu_val = 0; \ if (!check || __access_ok(__gu_ptr, size, segment)) \ switch (__gu_size) { \ case 1: __get_user_size(__gu_val, __gu_ptr, 1, __gu_err); break; \ @@ -240,13 +240,13 @@ extern unsigned long __must_check __copy_user (void __user *to, const void __use static inline unsigned long __copy_to_user (void __user *to, const void *from, unsigned long count) { - return __copy_user(to, (void __user *) from, count); + return __copy_user(to, (__force void __user *) from, count); } static inline unsigned long __copy_from_user (void *to, const void __user *from, unsigned long count) { - return __copy_user((void __user *) to, from, count); + return __copy_user((__force void __user *) to, from, count); } #define __copy_to_user_inatomic __copy_to_user @@ -258,7 +258,7 @@ __copy_from_user (void *to, const void __user *from, unsigned long count) long __cu_len = (n); \ \ if (__access_ok(__cu_to, __cu_len, get_fs())) \ - __cu_len = __copy_user(__cu_to, (void __user *) __cu_from, __cu_len); \ + __cu_len = __copy_user(__cu_to, (__force void __user *) __cu_from, __cu_len); \ __cu_len; \ }) @@ -270,7 +270,7 @@ __copy_from_user (void *to, const void __user *from, unsigned long count) \ __chk_user_ptr(__cu_from); \ if (__access_ok(__cu_from, __cu_len, get_fs())) \ - __cu_len = __copy_user((void __user *) __cu_to, __cu_from, __cu_len); \ + __cu_len = __copy_user((__force void __user *) __cu_to, __cu_from, __cu_len); \ __cu_len; \ }) From c28144763a7dcdceb2c16a5ac9c8e0022d547d28 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 29 Sep 2005 00:16:02 +0100 Subject: [PATCH 242/352] [PATCH] s390 signal annotations Signed-off-by: Al Viro Signed-off-by: Linus Torvalds --- arch/s390/kernel/compat_signal.c | 6 +++--- arch/s390/kernel/signal.c | 4 ++-- include/asm-s390/sigcontext.h | 2 +- include/asm-s390/signal.h | 2 +- 4 files changed, 7 insertions(+), 7 deletions(-) diff --git a/arch/s390/kernel/compat_signal.c b/arch/s390/kernel/compat_signal.c index 7358cdb8441f..4ff6808456ea 100644 --- a/arch/s390/kernel/compat_signal.c +++ b/arch/s390/kernel/compat_signal.c @@ -143,7 +143,7 @@ int copy_siginfo_from_user32(siginfo_t *to, compat_siginfo_t __user *from) break; case __SI_FAULT >> 16: err |= __get_user(tmp, &from->si_addr); - to->si_addr = (void *)(u64) (tmp & PSW32_ADDR_INSN); + to->si_addr = (void __user *)(u64) (tmp & PSW32_ADDR_INSN); break; case __SI_POLL >> 16: err |= __get_user(to->si_band, &from->si_band); @@ -338,7 +338,7 @@ sys32_sigaltstack(const stack_t32 __user *uss, stack_t32 __user *uoss, err |= __get_user(kss.ss_flags, &uss->ss_flags); if (err) return -EFAULT; - kss.ss_sp = (void *) ss_sp; + kss.ss_sp = (void __user *) ss_sp; } set_fs (KERNEL_DS); @@ -461,7 +461,7 @@ asmlinkage long sys32_rt_sigreturn(struct pt_regs *regs) goto badframe; err = __get_user(ss_sp, &frame->uc.uc_stack.ss_sp); - st.ss_sp = (void *) A((unsigned long)ss_sp); + st.ss_sp = compat_ptr(ss_sp); err |= __get_user(st.ss_size, &frame->uc.uc_stack.ss_size); err |= __get_user(st.ss_flags, &frame->uc.uc_stack.ss_flags); if (err) diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c index 6a3f5b7473a9..6e0110d71191 100644 --- a/arch/s390/kernel/signal.c +++ b/arch/s390/kernel/signal.c @@ -376,8 +376,8 @@ static void setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, /* Create the ucontext. */ err |= __put_user(0, &frame->uc.uc_flags); - err |= __put_user(0, &frame->uc.uc_link); - err |= __put_user((void *)current->sas_ss_sp, &frame->uc.uc_stack.ss_sp); + err |= __put_user(NULL, &frame->uc.uc_link); + err |= __put_user((void __user *)current->sas_ss_sp, &frame->uc.uc_stack.ss_sp); err |= __put_user(sas_ss_flags(regs->gprs[15]), &frame->uc.uc_stack.ss_flags); err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size); diff --git a/include/asm-s390/sigcontext.h b/include/asm-s390/sigcontext.h index d57bc0cebdce..803545351dd8 100644 --- a/include/asm-s390/sigcontext.h +++ b/include/asm-s390/sigcontext.h @@ -61,7 +61,7 @@ typedef struct struct sigcontext { unsigned long oldmask[_SIGCONTEXT_NSIG_WORDS]; - _sigregs *sregs; + _sigregs __user *sregs; }; diff --git a/include/asm-s390/signal.h b/include/asm-s390/signal.h index 3d6e11c6c1fd..7084626de215 100644 --- a/include/asm-s390/signal.h +++ b/include/asm-s390/signal.h @@ -165,7 +165,7 @@ struct sigaction { #endif /* __KERNEL__ */ typedef struct sigaltstack { - void *ss_sp; + void __user *ss_sp; int ss_flags; size_t ss_size; } stack_t; From ea8a918eb71b503be13b861dbe18b93932fd6b62 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 29 Sep 2005 00:17:49 +0100 Subject: [PATCH 243/352] [PATCH] ppc64 get_user annotations long is not uintptr_t, unsigned long is. Signed-off-by: Al Viro Signed-off-by: Linus Torvalds --- include/asm-ppc64/uaccess.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/include/asm-ppc64/uaccess.h b/include/asm-ppc64/uaccess.h index c181a60d868c..132c1276547b 100644 --- a/include/asm-ppc64/uaccess.h +++ b/include/asm-ppc64/uaccess.h @@ -164,7 +164,8 @@ do { \ #define __get_user_nocheck(x,ptr,size) \ ({ \ - long __gu_err, __gu_val; \ + long __gu_err; \ + unsigned long __gu_val; \ might_sleep(); \ __get_user_size(__gu_val,(ptr),(size),__gu_err,-EFAULT);\ (x) = (__typeof__(*(ptr)))__gu_val; \ @@ -173,7 +174,8 @@ do { \ #define __get_user_check(x,ptr,size) \ ({ \ - long __gu_err = -EFAULT, __gu_val = 0; \ + long __gu_err = -EFAULT; \ + unsigned long __gu_val = 0; \ const __typeof__(*(ptr)) __user *__gu_addr = (ptr); \ might_sleep(); \ if (access_ok(VERIFY_READ,__gu_addr,size)) \ From 9fcdfcd90526c8c5c2bd117fd3713f8f0f1a46a8 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 29 Sep 2005 00:31:14 +0100 Subject: [PATCH 244/352] [PATCH] ppc32 ld.script fix for building on ppc64 In arch/ppc/boot/ld.script we need OUTPUT_ARCH(powerpc:common) for the same reasons why we need it in vmlinux.lds.S; when we build on ppc64 box, we need to be explicit about the target. See http://linus.bkbits.net:8080/linux-2.5/cset@1.1784.8.10 for the corresponding fix in vmlinux.lds.S. Signed-off-by: Al Viro Signed-off-by: Linus Torvalds --- arch/ppc/boot/ld.script | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/ppc/boot/ld.script b/arch/ppc/boot/ld.script index 9362193742ac..d4dd8f15395e 100644 --- a/arch/ppc/boot/ld.script +++ b/arch/ppc/boot/ld.script @@ -1,4 +1,4 @@ -OUTPUT_ARCH(powerpc) +OUTPUT_ARCH(powerpc:common) SECTIONS { /* Read-only sections, merged into text segment: */ From a7625d6e49cb4fd94be7576d85422c33003101b7 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 29 Sep 2005 00:34:30 +0100 Subject: [PATCH 245/352] [PATCH] mv64x60 iomem annotations Signed-off-by: Al Viro Signed-off-by: Linus Torvalds --- arch/ppc/syslib/mv64x60.c | 4 ++-- include/asm-ppc/mv64x60.h | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/ppc/syslib/mv64x60.c b/arch/ppc/syslib/mv64x60.c index 839f8872826f..4849850a59ed 100644 --- a/arch/ppc/syslib/mv64x60.c +++ b/arch/ppc/syslib/mv64x60.c @@ -34,7 +34,7 @@ u8 mv64x60_pci_exclude_bridge = 1; DEFINE_SPINLOCK(mv64x60_lock); static phys_addr_t mv64x60_bridge_pbase; -static void *mv64x60_bridge_vbase; +static void __iomem *mv64x60_bridge_vbase; static u32 mv64x60_bridge_type = MV64x60_TYPE_INVALID; static u32 mv64x60_bridge_rev; #if defined(CONFIG_SYSFS) && !defined(CONFIG_GT64260) @@ -938,7 +938,7 @@ mv64x60_setup_for_chip(struct mv64x60_handle *bh) * * Return the virtual address of the bridge's registers. */ -void * +void __iomem * mv64x60_get_bridge_vbase(void) { return mv64x60_bridge_vbase; diff --git a/include/asm-ppc/mv64x60.h b/include/asm-ppc/mv64x60.h index 75c2ffa26b26..ee2f9188cc64 100644 --- a/include/asm-ppc/mv64x60.h +++ b/include/asm-ppc/mv64x60.h @@ -233,7 +233,7 @@ struct mv64x60_chip_info { struct mv64x60_handle { u32 type; /* type of bridge */ u32 rev; /* revision of bridge */ - void *v_base; /* virtual base addr of bridge regs */ + void __iomem *v_base;/* virtual base addr of bridge regs */ phys_addr_t p_base; /* physical base addr of bridge regs */ u32 pci_mode_a; /* pci 0 mode: conventional pci, pci-x*/ @@ -303,7 +303,7 @@ void mv64x60_alloc_hose(struct mv64x60_handle *bh, u32 cfg_addr, u32 cfg_data, struct pci_controller **hose); int mv64x60_get_type(struct mv64x60_handle *bh); int mv64x60_setup_for_chip(struct mv64x60_handle *bh); -void *mv64x60_get_bridge_vbase(void); +void __iomem *mv64x60_get_bridge_vbase(void); u32 mv64x60_get_bridge_type(void); u32 mv64x60_get_bridge_rev(void); void mv64x60_get_mem_windows(struct mv64x60_handle *bh, From be88ec74cb48d1f60d0c0f059843f846f4481d87 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 29 Sep 2005 00:36:10 +0100 Subject: [PATCH 246/352] [PATCH] i810-i2c iomem annotations Signed-off-by: Al Viro Acked-by: Antonino Daplas Signed-off-by: Linus Torvalds --- drivers/video/i810/i810-i2c.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/video/i810/i810-i2c.c b/drivers/video/i810/i810-i2c.c index fda53aac1fc1..689d2586366d 100644 --- a/drivers/video/i810/i810-i2c.c +++ b/drivers/video/i810/i810-i2c.c @@ -44,7 +44,7 @@ static void i810i2c_setscl(void *data, int state) { struct i810fb_i2c_chan *chan = (struct i810fb_i2c_chan *)data; struct i810fb_par *par = chan->par; - u8 *mmio = par->mmio_start_virtual; + u8 __iomem *mmio = par->mmio_start_virtual; i810_writel(mmio, GPIOB, (state ? SCL_VAL_OUT : 0) | SCL_DIR | SCL_DIR_MASK | SCL_VAL_MASK); @@ -55,7 +55,7 @@ static void i810i2c_setsda(void *data, int state) { struct i810fb_i2c_chan *chan = (struct i810fb_i2c_chan *)data; struct i810fb_par *par = chan->par; - u8 *mmio = par->mmio_start_virtual; + u8 __iomem *mmio = par->mmio_start_virtual; i810_writel(mmio, GPIOB, (state ? SDA_VAL_OUT : 0) | SDA_DIR | SDA_DIR_MASK | SDA_VAL_MASK); @@ -66,7 +66,7 @@ static int i810i2c_getscl(void *data) { struct i810fb_i2c_chan *chan = (struct i810fb_i2c_chan *)data; struct i810fb_par *par = chan->par; - u8 *mmio = par->mmio_start_virtual; + u8 __iomem *mmio = par->mmio_start_virtual; i810_writel(mmio, GPIOB, SCL_DIR_MASK); i810_writel(mmio, GPIOB, 0); @@ -77,7 +77,7 @@ static int i810i2c_getsda(void *data) { struct i810fb_i2c_chan *chan = (struct i810fb_i2c_chan *)data; struct i810fb_par *par = chan->par; - u8 *mmio = par->mmio_start_virtual; + u8 __iomem *mmio = par->mmio_start_virtual; i810_writel(mmio, GPIOB, SDA_DIR_MASK); i810_writel(mmio, GPIOB, 0); @@ -88,7 +88,7 @@ static void i810ddc_setscl(void *data, int state) { struct i810fb_i2c_chan *chan = (struct i810fb_i2c_chan *)data; struct i810fb_par *par = chan->par; - u8 *mmio = par->mmio_start_virtual; + u8 __iomem *mmio = par->mmio_start_virtual; i810_writel(mmio, GPIOA, (state ? SCL_VAL_OUT : 0) | SCL_DIR | SCL_DIR_MASK | SCL_VAL_MASK); @@ -99,7 +99,7 @@ static void i810ddc_setsda(void *data, int state) { struct i810fb_i2c_chan *chan = (struct i810fb_i2c_chan *)data; struct i810fb_par *par = chan->par; - u8 *mmio = par->mmio_start_virtual; + u8 __iomem *mmio = par->mmio_start_virtual; i810_writel(mmio, GPIOA, (state ? SDA_VAL_OUT : 0) | SDA_DIR | SDA_DIR_MASK | SDA_VAL_MASK); @@ -110,7 +110,7 @@ static int i810ddc_getscl(void *data) { struct i810fb_i2c_chan *chan = (struct i810fb_i2c_chan *)data; struct i810fb_par *par = chan->par; - u8 *mmio = par->mmio_start_virtual; + u8 __iomem *mmio = par->mmio_start_virtual; i810_writel(mmio, GPIOA, SCL_DIR_MASK); i810_writel(mmio, GPIOA, 0); @@ -121,7 +121,7 @@ static int i810ddc_getsda(void *data) { struct i810fb_i2c_chan *chan = (struct i810fb_i2c_chan *)data; struct i810fb_par *par = chan->par; - u8 *mmio = par->mmio_start_virtual; + u8 __iomem *mmio = par->mmio_start_virtual; i810_writel(mmio, GPIOA, SDA_DIR_MASK); i810_writel(mmio, GPIOA, 0); From ae8aed0314064da3002879fedc2d262c72865a17 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 29 Sep 2005 00:37:34 +0100 Subject: [PATCH 247/352] [PATCH] saa6588 __user annotations Signed-off-by: Al Viro Signed-off-by: Linus Torvalds --- drivers/media/video/rds.h | 2 +- drivers/media/video/saa6588.c | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/media/video/rds.h b/drivers/media/video/rds.h index 30337d0f1a87..0d30eb744e61 100644 --- a/drivers/media/video/rds.h +++ b/drivers/media/video/rds.h @@ -31,7 +31,7 @@ struct rds_command { unsigned int block_count; int result; - unsigned char *buffer; + unsigned char __user *buffer; struct file *instance; poll_table *event_list; }; diff --git a/drivers/media/video/saa6588.c b/drivers/media/video/saa6588.c index 1a657a70ff43..72b70eb5da1d 100644 --- a/drivers/media/video/saa6588.c +++ b/drivers/media/video/saa6588.c @@ -157,7 +157,7 @@ static struct i2c_client client_template; /* ---------------------------------------------------------------------- */ -static int block_to_user_buf(struct saa6588 *s, unsigned char *user_buf) +static int block_to_user_buf(struct saa6588 *s, unsigned char __user *user_buf) { int i; @@ -191,7 +191,7 @@ static void read_from_buf(struct saa6588 *s, struct rds_command *a) { unsigned long flags; - unsigned char *buf_ptr = a->buffer; /* This is a user space buffer! */ + unsigned char __user *buf_ptr = a->buffer; unsigned int i; unsigned int rd_blocks; From b2846dfa4aa1bbbf3f9977d67566952d7f621009 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 29 Sep 2005 00:42:27 +0100 Subject: [PATCH 248/352] [PATCH] mv64x60_wdt __user annotations and cleanups - use nonseekable_open() instead of messing with if (*ppos != file->f_pos) return -EISPIPE in ->write() (->read is NULL). - trivial __user annotations Signed-off-by: Al Viro Signed-off-by: Linus Torvalds --- drivers/char/watchdog/mv64x60_wdt.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/char/watchdog/mv64x60_wdt.c b/drivers/char/watchdog/mv64x60_wdt.c index 1436aea3b28f..6d3ff0836c44 100644 --- a/drivers/char/watchdog/mv64x60_wdt.c +++ b/drivers/char/watchdog/mv64x60_wdt.c @@ -87,6 +87,8 @@ static int mv64x60_wdt_open(struct inode *inode, struct file *file) mv64x60_wdt_service(); mv64x60_wdt_handler_enable(); + nonseekable_open(inode, file); + return 0; } @@ -103,12 +105,9 @@ static int mv64x60_wdt_release(struct inode *inode, struct file *file) return 0; } -static ssize_t mv64x60_wdt_write(struct file *file, const char *data, +static ssize_t mv64x60_wdt_write(struct file *file, const char __user *data, size_t len, loff_t * ppos) { - if (*ppos != file->f_pos) - return -ESPIPE; - if (len) mv64x60_wdt_service(); @@ -119,6 +118,7 @@ static int mv64x60_wdt_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) { int timeout; + void __user *argp = (void __user *)arg; static struct watchdog_info info = { .options = WDIOF_KEEPALIVEPING, .firmware_version = 0, @@ -127,13 +127,13 @@ static int mv64x60_wdt_ioctl(struct inode *inode, struct file *file, switch (cmd) { case WDIOC_GETSUPPORT: - if (copy_to_user((void *)arg, &info, sizeof(info))) + if (copy_to_user(argp, &info, sizeof(info))) return -EFAULT; break; case WDIOC_GETSTATUS: case WDIOC_GETBOOTSTATUS: - if (put_user(wdt_status, (int *)arg)) + if (put_user(wdt_status, (int __user *)argp)) return -EFAULT; wdt_status &= ~WDIOF_KEEPALIVEPING; break; @@ -154,7 +154,7 @@ static int mv64x60_wdt_ioctl(struct inode *inode, struct file *file, case WDIOC_GETTIMEOUT: timeout = mv64x60_wdt_timeout * HZ; - if (put_user(timeout, (int *)arg)) + if (put_user(timeout, (int __user *)argp)) return -EFAULT; break; From 375726d7ed08bd8cf2fe3cfe6b164ffb37fa7e90 Mon Sep 17 00:00:00 2001 From: "Antonino A. Daplas" Date: Thu, 29 Sep 2005 05:19:51 +0800 Subject: [PATCH 249/352] [PATCH] intelfb: Fix regression (blank display) from ioremap patch - Workaround for the ioremap patch that produces a blank display on some chipsets - Make hwcursor = 0 the default. The hardware cursor does not work with all hardware. Signed-off-by: Antonino Daplas Signed-off-by: Linus Torvalds --- drivers/video/Kconfig | 1 + drivers/video/intelfb/intelfbdrv.c | 21 ++++++++++----------- 2 files changed, 11 insertions(+), 11 deletions(-) diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig index 773ae11b4a19..1cd942abb580 100644 --- a/drivers/video/Kconfig +++ b/drivers/video/Kconfig @@ -768,6 +768,7 @@ config FB_INTEL select FB_CFB_FILLRECT select FB_CFB_COPYAREA select FB_CFB_IMAGEBLIT + select FB_SOFT_CURSOR help This driver supports the on-board graphics built in to the Intel 830M/845G/852GM/855GM/865G chipsets. diff --git a/drivers/video/intelfb/intelfbdrv.c b/drivers/video/intelfb/intelfbdrv.c index bf62e6ed0382..80a09344f1aa 100644 --- a/drivers/video/intelfb/intelfbdrv.c +++ b/drivers/video/intelfb/intelfbdrv.c @@ -226,7 +226,7 @@ MODULE_DEVICE_TABLE(pci, intelfb_pci_table); static int accel = 1; static int vram = 4; -static int hwcursor = 1; +static int hwcursor = 0; static int mtrr = 1; static int fixed = 0; static int noinit = 0; @@ -609,15 +609,9 @@ intelfb_pci_register(struct pci_dev *pdev, const struct pci_device_id *ent) dinfo->accel = 0; } - if (MB(voffset) < stolen_size) - offset = (stolen_size >> 12); - else - offset = ROUND_UP_TO_PAGE(MB(voffset))/GTT_PAGE_SIZE; - /* Framebuffer parameters - Use all the stolen memory if >= vram */ - if (ROUND_UP_TO_PAGE(stolen_size) >= ((offset << 12) + MB(vram))) { + if (ROUND_UP_TO_PAGE(stolen_size) >= MB(vram)) { dinfo->fb.size = ROUND_UP_TO_PAGE(stolen_size); - dinfo->fb.offset = 0; dinfo->fbmem_gart = 0; } else { dinfo->fb.size = MB(vram); @@ -648,6 +642,11 @@ intelfb_pci_register(struct pci_dev *pdev, const struct pci_device_id *ent) return -ENODEV; } + if (MB(voffset) < stolen_size) + offset = (stolen_size >> 12); + else + offset = ROUND_UP_TO_PAGE(MB(voffset))/GTT_PAGE_SIZE; + /* set the mem offsets - set them after the already used pages */ if (dinfo->accel) { dinfo->ring.offset = offset + gtt_info.current_memory; @@ -662,10 +661,11 @@ intelfb_pci_register(struct pci_dev *pdev, const struct pci_device_id *ent) + (dinfo->cursor.size >> 12); } + /* Allocate memories (which aren't stolen) */ /* Map the fb and MMIO regions */ /* ioremap only up to the end of used aperture */ dinfo->aperture.virtual = (u8 __iomem *)ioremap_nocache - (dinfo->aperture.physical, (dinfo->fb.offset << 12) + (dinfo->aperture.physical, ((offset + dinfo->fb.offset) << 12) + dinfo->fb.size); if (!dinfo->aperture.virtual) { ERR_MSG("Cannot remap FB region.\n"); @@ -682,7 +682,6 @@ intelfb_pci_register(struct pci_dev *pdev, const struct pci_device_id *ent) return -ENODEV; } - /* Allocate memories (which aren't stolen) */ if (dinfo->accel) { if (!(dinfo->gtt_ring_mem = agp_allocate_memory(bridge, dinfo->ring.size >> 12, @@ -1484,7 +1483,7 @@ intelfb_cursor(struct fb_info *info, struct fb_cursor *cursor) #endif if (!dinfo->hwcursor) - return -ENXIO; + return soft_cursor(info, cursor); intelfbhw_cursor_hide(dinfo); From fe984bba30a29398578da3d8c0503fa39e84b838 Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Thu, 29 Sep 2005 05:24:38 +0800 Subject: [PATCH 250/352] [PATCH] s3c2410fb: Minor warning fix The function s3c2410fb_activate_var does not return a value, therefore it should be declared void. Signed-off-by: Ben Dooks Signed-off-by: Antonino Daplas Signed-off-by: Linus Torvalds --- drivers/video/s3c2410fb.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/video/s3c2410fb.c b/drivers/video/s3c2410fb.c index 00c0223a352e..5ab79afb53b7 100644 --- a/drivers/video/s3c2410fb.c +++ b/drivers/video/s3c2410fb.c @@ -228,8 +228,8 @@ static int s3c2410fb_check_var(struct fb_var_screeninfo *var, * information */ -static int s3c2410fb_activate_var(struct s3c2410fb_info *fbi, - struct fb_var_screeninfo *var) +static void s3c2410fb_activate_var(struct s3c2410fb_info *fbi, + struct fb_var_screeninfo *var) { fbi->regs.lcdcon1 &= ~S3C2410_LCDCON1_MODEMASK; From 82810a906f8734ae6503ea11436a7164d2f86f2e Mon Sep 17 00:00:00 2001 From: Deepak Saxena Date: Wed, 28 Sep 2005 16:42:54 -0700 Subject: [PATCH 251/352] [PATCH] Fix ixp4xx MTD driver module build Missing ';' breaks module build. Signed-off-by: Deepak Saxena Signed-off-by: Linus Torvalds --- drivers/mtd/maps/ixp4xx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mtd/maps/ixp4xx.c b/drivers/mtd/maps/ixp4xx.c index 5afe660aa2c4..bbb0e6e569a6 100644 --- a/drivers/mtd/maps/ixp4xx.c +++ b/drivers/mtd/maps/ixp4xx.c @@ -254,6 +254,6 @@ module_init(ixp4xx_flash_init); module_exit(ixp4xx_flash_exit); MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("MTD map driver for Intel IXP4xx systems") +MODULE_DESCRIPTION("MTD map driver for Intel IXP4xx systems"); MODULE_AUTHOR("Deepak Saxena"); From b38708fca9cc60d8a073a67c3b366116e38011c5 Mon Sep 17 00:00:00 2001 From: Deepak Saxena Date: Wed, 28 Sep 2005 18:07:01 -0700 Subject: [PATCH 252/352] [PATCH] Fix thinko in previous ARM 2917/1 patch Previous patch accidently add IXDP425 mach entry when IXDP465 is configured. Signed-off-by: Deepak Saxena Signed-off-by: Linus Torvalds --- arch/arm/mach-ixp4xx/ixdp425-setup.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-ixp4xx/ixdp425-setup.c b/arch/arm/mach-ixp4xx/ixdp425-setup.c index 39b06ed80646..0a41080d2266 100644 --- a/arch/arm/mach-ixp4xx/ixdp425-setup.c +++ b/arch/arm/mach-ixp4xx/ixdp425-setup.c @@ -123,7 +123,7 @@ static void __init ixdp425_init(void) platform_add_devices(ixdp425_devices, ARRAY_SIZE(ixdp425_devices)); } -#ifdef CONFIG_ARCH_IXDP465 +#ifdef CONFIG_ARCH_IXDP425 MACHINE_START(IXDP425, "Intel IXDP425 Development Platform") /* Maintainer: MontaVista Software, Inc. */ .phys_ram = PHYS_OFFSET, From aa55a08687059aa169d10a313c41f238c2070488 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Thu, 29 Sep 2005 19:58:53 +0400 Subject: [PATCH 253/352] [PATCH] fix TASK_STOPPED vs TASK_NONINTERACTIVE interaction do_signal_stop: for_each_thread(t) { if (t->state < TASK_STOPPED) ++sig->group_stop_count; } However, TASK_NONINTERACTIVE > TASK_STOPPED, so this loop will not count TASK_INTERRUPTIBLE | TASK_NONINTERACTIVE threads. See also wait_task_stopped(), which checks ->state > TASK_STOPPED. Signed-off-by: Oleg Nesterov [ We really probably should always use the appropriate bitmasks to test task states, not do it like this. Using something like #define TASK_RUNNABLE (TASK_RUNNING | TASK_INTERRUPTIBLE | \ TASK_UNINTERRUPTIBLE | TASK_NONINTERACTIVE) and then doing "if (task->state & TASK_RUNNABLE)" or similar. But the ordering of the task states is historical, and keeping the ordering does make sense regardless. ] Signed-off-by: Linus Torvalds --- include/linux/sched.h | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/include/linux/sched.h b/include/linux/sched.h index 49e617fa0f66..afe6c61f13e5 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -110,11 +110,11 @@ extern unsigned long nr_iowait(void); #define TASK_RUNNING 0 #define TASK_INTERRUPTIBLE 1 #define TASK_UNINTERRUPTIBLE 2 -#define TASK_STOPPED 4 -#define TASK_TRACED 8 -#define EXIT_ZOMBIE 16 -#define EXIT_DEAD 32 -#define TASK_NONINTERACTIVE 64 +#define TASK_NONINTERACTIVE 4 +#define TASK_STOPPED 8 +#define TASK_TRACED 16 +#define EXIT_ZOMBIE 32 +#define EXIT_DEAD 64 #define __set_task_state(tsk, state_value) \ do { (tsk)->state = (state_value); } while (0) From 4a8342d233a39ee582e9f7260e12d2f5fd194a05 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Thu, 29 Sep 2005 15:18:21 -0700 Subject: [PATCH 254/352] Revert task flag re-ordering, add comments Roland points out that the flags end up having non-obvious dependencies elsewhere, so revert aa55a08687059aa169d10a313c41f238c2070488 and add some comments about why things are as they are. We'll just have to fix up the broken comparisons. Roland has a patch. Signed-off-by: Linus Torvalds --- include/linux/sched.h | 22 +++++++++++++++++----- 1 file changed, 17 insertions(+), 5 deletions(-) diff --git a/include/linux/sched.h b/include/linux/sched.h index afe6c61f13e5..c3ba31f210a9 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -107,14 +107,26 @@ extern unsigned long nr_iowait(void); #include +/* + * Task state bitmask. NOTE! These bits are also + * encoded in fs/proc/array.c: get_task_state(). + * + * We have two separate sets of flags: task->state + * is about runnability, while task->exit_state are + * about the task exiting. Confusing, but this way + * modifying one set can't modify the other one by + * mistake. + */ #define TASK_RUNNING 0 #define TASK_INTERRUPTIBLE 1 #define TASK_UNINTERRUPTIBLE 2 -#define TASK_NONINTERACTIVE 4 -#define TASK_STOPPED 8 -#define TASK_TRACED 16 -#define EXIT_ZOMBIE 32 -#define EXIT_DEAD 64 +#define TASK_STOPPED 4 +#define TASK_TRACED 8 +/* in tsk->exit_state */ +#define EXIT_ZOMBIE 16 +#define EXIT_DEAD 32 +/* in tsk->state again */ +#define TASK_NONINTERACTIVE 64 #define __set_task_state(tsk, state_value) \ do { (tsk)->state = (state_value); } while (0) From 5acbc5cb507e6c381b70093b1081854708e82b16 Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Thu, 29 Sep 2005 14:54:42 -0700 Subject: [PATCH 255/352] [PATCH] Fix task state testing properly in do_signal_stop() Any tests using < TASK_STOPPED or the like are left over from the time when the TASK_ZOMBIE and TASK_DEAD bits were in the same word, and it served to check for "stopped or dead". I think this one in do_signal_stop is the only such case. It has been buggy ever since exit_state was separated, and isn't testing the exit_state value. Signed-off-by: Roland McGrath Signed-off-by: Linus Torvalds --- kernel/signal.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/signal.c b/kernel/signal.c index 5a274705ba19..619b027e92b5 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -1763,7 +1763,8 @@ do_signal_stop(int signr) * stop is always done with the siglock held, * so this check has no races. */ - if (t->state < TASK_STOPPED) { + if (!t->exit_state && + !(t->state & (TASK_STOPPED|TASK_TRACED))) { stop_count++; signal_wake_up(t, 0); } From 7d318d774789657c37a5e994a4a2cf59d4879ae7 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Thu, 29 Sep 2005 22:05:55 +0200 Subject: [PATCH 256/352] [PATCH] Fix up TLB flush filter disabling I checked with AMD and they requested to only disable it for family 15. Also disable it for i386 too. And some style fixes. Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds --- arch/i386/kernel/cpu/amd.c | 16 ++++++++++++++++ arch/x86_64/kernel/setup.c | 22 ++++++++++++---------- include/asm-x86_64/msr.h | 1 + 3 files changed, 29 insertions(+), 10 deletions(-) diff --git a/arch/i386/kernel/cpu/amd.c b/arch/i386/kernel/cpu/amd.c index 73aeaf5a9d4e..4c1ddf2b57cc 100644 --- a/arch/i386/kernel/cpu/amd.c +++ b/arch/i386/kernel/cpu/amd.c @@ -28,6 +28,22 @@ static void __init init_amd(struct cpuinfo_x86 *c) int mbytes = num_physpages >> (20-PAGE_SHIFT); int r; +#ifdef CONFIG_SMP + unsigned long value; + + /* Disable TLB flush filter by setting HWCR.FFDIS on K8 + * bit 6 of msr C001_0015 + * + * Errata 63 for SH-B3 steppings + * Errata 122 for all steppings (F+ have it disabled by default) + */ + if (c->x86 == 15) { + rdmsrl(MSR_K7_HWCR, value); + value |= 1 << 6; + wrmsrl(MSR_K7_HWCR, value); + } +#endif + /* * FIXME: We should handle the K5 here. Set up the write * range and also turn on MSR 83 bits 4 and 31 (write alloc, diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c index 238f73e1a834..257f5ba17902 100644 --- a/arch/x86_64/kernel/setup.c +++ b/arch/x86_64/kernel/setup.c @@ -831,8 +831,6 @@ static void __init amd_detect_cmp(struct cpuinfo_x86 *c) #endif } -#define HWCR 0xc0010015 - static int __init init_amd(struct cpuinfo_x86 *c) { int r; @@ -841,14 +839,18 @@ static int __init init_amd(struct cpuinfo_x86 *c) #ifdef CONFIG_SMP unsigned long value; - // Disable TLB flush filter by setting HWCR.FFDIS: - // bit 6 of msr C001_0015 - // - // Errata 63 for SH-B3 steppings - // Errata 122 for all(?) steppings - rdmsrl(HWCR, value); - value |= 1 << 6; - wrmsrl(HWCR, value); + /* + * Disable TLB flush filter by setting HWCR.FFDIS on K8 + * bit 6 of msr C001_0015 + * + * Errata 63 for SH-B3 steppings + * Errata 122 for all steppings (F+ have it disabled by default) + */ + if (c->x86 == 15) { + rdmsrl(MSR_K8_HWCR, value); + value |= 1 << 6; + wrmsrl(MSR_K8_HWCR, value); + } #endif /* Bit 31 in normal CPUID used for nonstandard 3DNow ID; diff --git a/include/asm-x86_64/msr.h b/include/asm-x86_64/msr.h index 4d727f3f5550..5a7fe3c6c3d8 100644 --- a/include/asm-x86_64/msr.h +++ b/include/asm-x86_64/msr.h @@ -234,6 +234,7 @@ static inline unsigned int cpuid_edx(unsigned int op) #define MSR_K8_TOP_MEM1 0xC001001A #define MSR_K8_TOP_MEM2 0xC001001D #define MSR_K8_SYSCFG 0xC0010010 +#define MSR_K8_HWCR 0xC0010015 /* K6 MSRs */ #define MSR_K6_EFER 0xC0000080 From 7644143cd6f7e029f3a8ea64f5fb0ab33ec39f72 Mon Sep 17 00:00:00 2001 From: Mike Waychison Date: Fri, 30 Sep 2005 00:01:27 +0200 Subject: [PATCH 257/352] [PATCH] x86_64: Fix mce_log The attempt to fixup the lockless mce log buffer introduced an infinite loop when trying to find a free entry. And: Using rcu_dereference() to load mcelog.next doesn't seem to be sufficient enough to ensure that mcelog.next is loaded each time around the loop in mce_log(). Instead, use an explicit rmb() to ensure that the compiler gets it right. AK: turned the smp_wmbs into true wmbs to make sure they are not reordered by the compiler on UP. Signed-off-by: Mike Waychison Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds --- arch/x86_64/kernel/mce.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/arch/x86_64/kernel/mce.c b/arch/x86_64/kernel/mce.c index 08203b07f4bd..69541db5ff2c 100644 --- a/arch/x86_64/kernel/mce.c +++ b/arch/x86_64/kernel/mce.c @@ -54,9 +54,12 @@ void mce_log(struct mce *mce) { unsigned next, entry; mce->finished = 0; - smp_wmb(); + wmb(); for (;;) { entry = rcu_dereference(mcelog.next); + /* The rmb forces the compiler to reload next in each + iteration */ + rmb(); for (;;) { /* When the buffer fills up discard new entries. Assume that the earlier errors are the more interesting. */ @@ -69,6 +72,7 @@ void mce_log(struct mce *mce) entry++; continue; } + break; } smp_rmb(); next = entry + 1; @@ -76,9 +80,9 @@ void mce_log(struct mce *mce) break; } memcpy(mcelog.entry + entry, mce, sizeof(struct mce)); - smp_wmb(); + wmb(); mcelog.entry[entry].finished = 1; - smp_wmb(); + wmb(); if (!test_and_set_bit(0, &console_logged)) notify_user = 1; From 411b67b4b6a4dd1e0292a6a58dd753978179d173 Mon Sep 17 00:00:00 2001 From: Kostik Belousov Date: Wed, 28 Sep 2005 18:21:28 +0300 Subject: [PATCH 258/352] [PATCH] readv/writev syscalls are not checked by lsm it seems that readv(2)/writev(2) syscalls do not call file_permission callback. Looks like this is overlook. I have filled the issue into redhat bugzilla as https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=169433 and got the recommendation to post this on lsm mailing list. The following trivial patch solves the problem. Signed-off-by: Kostik Belousov Signed-off-by: Chris Wright --- fs/read_write.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/fs/read_write.c b/fs/read_write.c index b60324aaa2b6..a091ee4f430d 100644 --- a/fs/read_write.c +++ b/fs/read_write.c @@ -497,6 +497,9 @@ static ssize_t do_readv_writev(int type, struct file *file, } ret = rw_verify_area(type, file, pos, tot_len); + if (ret) + goto out; + ret = security_file_permission(file, type == READ ? MAY_READ : MAY_WRITE); if (ret) goto out; From a44fe13eab664ac488ced0845d9885b019bd24c5 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Fri, 30 Sep 2005 08:25:17 +1000 Subject: [PATCH 259/352] [PATCH] Fix ppc64 smu driver locking The SMU driver has a small mistake in the locking of the interrupt code, if polled access and interrupt access race, interrupt may take a lock and return without releasing it. This fixes it. With that patch, the driver is rock solid with my experimental thermal control (which bangs it pretty hard) racing with real time clock and cpufreq handling. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Linus Torvalds --- drivers/macintosh/smu.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/macintosh/smu.c b/drivers/macintosh/smu.c index a85ac18dd21d..9b38674fbf75 100644 --- a/drivers/macintosh/smu.c +++ b/drivers/macintosh/smu.c @@ -153,8 +153,10 @@ static irqreturn_t smu_db_intr(int irq, void *arg, struct pt_regs *regs) spin_lock_irqsave(&smu->lock, flags); gpio = pmac_do_feature_call(PMAC_FTR_READ_GPIO, NULL, smu->doorbell); - if ((gpio & 7) != 7) + if ((gpio & 7) != 7) { + spin_unlock_irqrestore(&smu->lock, flags); return IRQ_HANDLED; + } cmd = smu->cmd_cur; smu->cmd_cur = NULL; From dce79affd5d04e9cbabe35016eda55213b9b36f6 Mon Sep 17 00:00:00 2001 From: Daniel Jacobowitz Date: Fri, 30 Sep 2005 00:17:35 +0100 Subject: [PATCH 260/352] [ARM] 2941/1: Fix running legacy binaries from a soft-float root filesystem with CONFIG_IWMMXT. Patch from Daniel Jacobowitz Thread flags are inherited on fork(). In order for a binary which has the iWMMXt coprocessor enabled to run a binary which needs the FPA emulation, we need to explicitly clear TIF_USING_IWMMXT if we are not going to set it. Signed-off-by: Daniel Jacobowitz Signed-off-by: Russell King --- include/asm-arm/elf.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/asm-arm/elf.h b/include/asm-arm/elf.h index a1696ba238d3..7da97a937548 100644 --- a/include/asm-arm/elf.h +++ b/include/asm-arm/elf.h @@ -124,6 +124,8 @@ do { \ if (((ex).e_flags & EF_ARM_EABI_MASK) || \ ((ex).e_flags & EF_ARM_SOFT_FLOAT)) \ set_thread_flag(TIF_USING_IWMMXT); \ + else \ + clear_thread_flag(TIF_USING_IWMMXT); \ } while (0) #endif From 01ff367e62f0474e4d39aa5812cbe2a30d96e1e9 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Thu, 29 Sep 2005 17:07:20 -0700 Subject: [PATCH 261/352] [TCP]: Revert 6b251858d377196b8cea20e65cae60f584a42735 But retain the comment fix. Alexey Kuznetsov has explained the situation as follows: -------------------- I think the fix is incorrect. Look, the RFC function init_cwnd(mss) is not continuous: f.e. for mss=1095 it needs initial window 1095*4, but for mss=1096 it is 1096*3. We do not know exactly what mss sender used for calculations. If we advertised 1096 (and calculate initial window 3*1096), the sender could limit it to some value < 1096 and then it will need window his_mss*4 > 3*1096 to send initial burst. See? So, the honest function for inital rcv_wnd derived from tcp_init_cwnd() is: init_rcv_wnd(mss)= min { init_cwnd(mss1)*mss1 for mss1 <= mss } It is something sort of: if (mss < 1096) return mss*4; if (mss < 1096*2) return 1096*4; return mss*2; (I just scrablled a graph of piece of paper, it is difficult to see or to explain without this) I selected it differently giving more window than it is strictly required. Initial receive window must be large enough to allow sender following to the rfc (or just setting initial cwnd to 2) to send initial burst. But besides that it is arbitrary, so I decided to give slack space of one segment. Actually, the logic was: If mss is low/normal (<=ethernet), set window to receive more than initial burst allowed by rfc under the worst conditions i.e. mss*4. This gives slack space of 1 segment for ethernet frames. For msses slighlty more than ethernet frame, take 3. Try to give slack space of 1 frame again. If mss is huge, force 2*mss. No slack space. Value 1460*3 is really confusing. Minimal one is 1096*2, but besides that it is an arbitrary value. It was meant to be ~4096. 1460*3 is just the magic number from RFC, 1460*3 = 1095*4 is the magic :-), so that I guess hands typed this themselves. -------------------- Signed-off-by: David S. Miller --- net/ipv4/tcp_output.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index caf2e2cff293..c5b911f9b662 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -194,12 +194,11 @@ void tcp_select_initial_window(int __space, __u32 mss, * will be satisfied with 2. */ if (mss > (1<<*rcv_wscale)) { - int init_cwnd; - - if (mss > 1460) + int init_cwnd = 4; + if (mss > 1460*3) init_cwnd = 2; - else - init_cwnd = (mss > 1095) ? 3 : 4; + else if (mss > 1460) + init_cwnd = 3; if (*rcv_wnd > init_cwnd*mss) *rcv_wnd = init_cwnd*mss; } From 09e9ec87111ba818d8171262b15ba4c357eb1d27 Mon Sep 17 00:00:00 2001 From: Alexey Kuznetsov Date: Thu, 29 Sep 2005 17:17:15 -0700 Subject: [PATCH 262/352] [TCP]: Don't over-clamp window in tcp_clamp_window() From: Alexey Kuznetsov Handle better the case where the sender sends full sized frames initially, then moves to a mode where it trickles out small amounts of data at a time. This known problem is even mentioned in the comments above tcp_grow_window() in tcp_input.c, specifically: ... * The scheme does not work when sender sends good segments opening * window and then starts to feed us spagetti. But it should work * in common situations. Otherwise, we have to rely on queue collapsing. ... When the sender gives full sized frames, the "struct sk_buff" overhead from each packet is small. So we'll advertize a larger window. If the sender moves to a mode where small segments are sent, this ratio becomes tilted to the other extreme and we start overrunning the socket buffer space. tcp_clamp_window() tries to address this, but it's clamping of tp->window_clamp is a wee bit too aggressive for this particular case. Fix confirmed by Ion Badulescu. Signed-off-by: David S. Miller --- net/ipv4/tcp_input.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index a7537c7bbd06..677419d0c9ad 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -355,8 +355,6 @@ static void tcp_clamp_window(struct sock *sk, struct tcp_sock *tp) app_win -= icsk->icsk_ack.rcv_mss; app_win = max(app_win, 2U*tp->advmss); - if (!ofo_win) - tp->window_clamp = min(tp->window_clamp, app_win); tp->rcv_ssthresh = min(tp->window_clamp, 2U*tp->advmss); } } From 4a7097fcc431ab2ccf509d8342831873138c814a Mon Sep 17 00:00:00 2001 From: Scott Talbert Date: Thu, 29 Sep 2005 17:30:54 -0700 Subject: [PATCH 263/352] [ATM]: [lec] attempt to support cisco failover From: Scott Talbert Signed-off-by: Chas Williams Signed-off-by: David S. Miller --- net/atm/lec.c | 37 ++++++++++++++++++++++++++++++++++--- 1 file changed, 34 insertions(+), 3 deletions(-) diff --git a/net/atm/lec.c b/net/atm/lec.c index a0752487026d..47e1eae97461 100644 --- a/net/atm/lec.c +++ b/net/atm/lec.c @@ -686,9 +686,19 @@ static unsigned char lec_ctrl_magic[] = { 0x01, 0x01 }; +#define LEC_DATA_DIRECT_8023 2 +#define LEC_DATA_DIRECT_8025 3 + +static int lec_is_data_direct(struct atm_vcc *vcc) +{ + return ((vcc->sap.blli[0].l3.tr9577.snap[4] == LEC_DATA_DIRECT_8023) || + (vcc->sap.blli[0].l3.tr9577.snap[4] == LEC_DATA_DIRECT_8025)); +} + static void lec_push(struct atm_vcc *vcc, struct sk_buff *skb) { + unsigned long flags; struct net_device *dev = (struct net_device *)vcc->proto_data; struct lec_priv *priv = (struct lec_priv *)dev->priv; @@ -728,7 +738,8 @@ lec_push(struct atm_vcc *vcc, struct sk_buff *skb) skb_queue_tail(&sk->sk_receive_queue, skb); sk->sk_data_ready(sk, skb->len); } else { /* Data frame, queue to protocol handlers */ - unsigned char *dst; + struct lec_arp_table *entry; + unsigned char *src, *dst; atm_return(vcc,skb->truesize); if (*(uint16_t *)skb->data == htons(priv->lecid) || @@ -741,10 +752,30 @@ lec_push(struct atm_vcc *vcc, struct sk_buff *skb) return; } #ifdef CONFIG_TR - if (priv->is_trdev) dst = ((struct lecdatahdr_8025 *)skb->data)->h_dest; + if (priv->is_trdev) + dst = ((struct lecdatahdr_8025 *) skb->data)->h_dest; else #endif - dst = ((struct lecdatahdr_8023 *)skb->data)->h_dest; + dst = ((struct lecdatahdr_8023 *) skb->data)->h_dest; + + /* If this is a Data Direct VCC, and the VCC does not match + * the LE_ARP cache entry, delete the LE_ARP cache entry. + */ + spin_lock_irqsave(&priv->lec_arp_lock, flags); + if (lec_is_data_direct(vcc)) { +#ifdef CONFIG_TR + if (priv->is_trdev) + src = ((struct lecdatahdr_8025 *) skb->data)->h_source; + else +#endif + src = ((struct lecdatahdr_8023 *) skb->data)->h_source; + entry = lec_arp_find(priv, src); + if (entry && entry->vcc != vcc) { + lec_arp_remove(priv, entry); + kfree(entry); + } + } + spin_unlock_irqrestore(&priv->lec_arp_lock, flags); if (!(dst[0]&0x01) && /* Never filter Multi/Broadcast */ !priv->is_proxy && /* Proxy wants all the packets */ From 75b895c15b3ea2a3cd5c8e8f3c62e4598ef4d2ba Mon Sep 17 00:00:00 2001 From: Scott Talbert Date: Thu, 29 Sep 2005 17:31:30 -0700 Subject: [PATCH 264/352] [ATM]: [lec] reset retry counter when new arp issued From: Scott Talbert Signed-off-by: Chas Williams Signed-off-by: David S. Miller --- net/atm/lec.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/net/atm/lec.c b/net/atm/lec.c index 47e1eae97461..ad840b9afba8 100644 --- a/net/atm/lec.c +++ b/net/atm/lec.c @@ -2021,6 +2021,12 @@ lec_arp_resolve(struct lec_priv *priv, unsigned char *mac_to_find, found = entry->vcc; goto out; } + /* If the LE_ARP cache entry is still pending, reset count to 0 + * so another LE_ARP request can be made for this frame. + */ + if (entry->status == ESI_ARP_PENDING) { + entry->no_tries = 0; + } /* Data direct VC not yet set up, check to see if the unknown frame count is greater than the limit. If the limit has not been reached, allow the caller to send packet to From 13edad7a5cef1c952459742482482a6b05e1a8a1 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Thu, 29 Sep 2005 17:58:26 -0700 Subject: [PATCH 265/352] [SPARC64]: Rewrite convoluted physical memory probing. Delete all of the code working with sp_banks[] and replace with clean acquisition and sorting of physical memory parameters from the firmware. Signed-off-by: David S. Miller --- arch/sparc64/kernel/traps.c | 2 +- arch/sparc64/mm/init.c | 302 ++++++++++++--------------------- include/asm-sparc64/openprom.h | 4 +- 3 files changed, 114 insertions(+), 194 deletions(-) diff --git a/arch/sparc64/kernel/traps.c b/arch/sparc64/kernel/traps.c index 7f190fc57545..5570e7bb22bb 100644 --- a/arch/sparc64/kernel/traps.c +++ b/arch/sparc64/kernel/traps.c @@ -1333,7 +1333,7 @@ static int cheetah_check_main_memory(unsigned long paddr) { unsigned long vaddr = PAGE_OFFSET + paddr; - if (vaddr > high_memory) + if (vaddr > (unsigned long) high_memory) return 0; return kern_addr_valid(vaddr); diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c index 48851a2e4fe1..5db50524f20d 100644 --- a/arch/sparc64/mm/init.c +++ b/arch/sparc64/mm/init.c @@ -21,6 +21,7 @@ #include #include #include +#include #include #include @@ -41,14 +42,72 @@ extern void device_scan(void); -struct sparc_phys_banks { - unsigned long base_addr; - unsigned long num_bytes; -}; +#define MAX_BANKS 32 -#define SPARC_PHYS_BANKS 32 +static struct linux_prom64_registers pavail[MAX_BANKS] __initdata; +static struct linux_prom64_registers pavail_rescan[MAX_BANKS] __initdata; +static int pavail_ents __initdata; +static int pavail_rescan_ents __initdata; -static struct sparc_phys_banks sp_banks[SPARC_PHYS_BANKS]; +static int cmp_p64(const void *a, const void *b) +{ + const struct linux_prom64_registers *x = a, *y = b; + + if (x->phys_addr > y->phys_addr) + return 1; + if (x->phys_addr < y->phys_addr) + return -1; + return 0; +} + +static void __init read_obp_memory(const char *property, + struct linux_prom64_registers *regs, + int *num_ents) +{ + int node = prom_finddevice("/memory"); + int prop_size = prom_getproplen(node, property); + int ents, ret, i; + + ents = prop_size / sizeof(struct linux_prom64_registers); + if (ents > MAX_BANKS) { + prom_printf("The machine has more %s property entries than " + "this kernel can support (%d).\n", + property, MAX_BANKS); + prom_halt(); + } + + ret = prom_getproperty(node, property, (char *) regs, prop_size); + if (ret == -1) { + prom_printf("Couldn't get %s property from /memory.\n"); + prom_halt(); + } + + *num_ents = ents; + + /* Sanitize what we got from the firmware, by page aligning + * everything. + */ + for (i = 0; i < ents; i++) { + unsigned long base, size; + + base = regs[i].phys_addr; + size = regs[i].reg_size; + + size &= PAGE_MASK; + if (base & ~PAGE_MASK) { + unsigned long new_base = PAGE_ALIGN(base); + + size -= new_base - base; + if ((long) size < 0L) + size = 0UL; + base = new_base; + } + regs[i].phys_addr = base; + regs[i].reg_size = size; + } + sort(regs, ents, sizeof(struct linux_prom64_registers), + cmp_p64, NULL); +} unsigned long *sparc64_valid_addr_bitmap __read_mostly; @@ -1213,14 +1272,14 @@ unsigned long __init bootmem_init(unsigned long *pages_avail) int i; #ifdef CONFIG_DEBUG_BOOTMEM - prom_printf("bootmem_init: Scan sp_banks, "); + prom_printf("bootmem_init: Scan pavail, "); #endif bytes_avail = 0UL; - for (i = 0; sp_banks[i].num_bytes != 0; i++) { - end_of_phys_memory = sp_banks[i].base_addr + - sp_banks[i].num_bytes; - bytes_avail += sp_banks[i].num_bytes; + for (i = 0; i < pavail_ents; i++) { + end_of_phys_memory = pavail[i].phys_addr + + pavail[i].reg_size; + bytes_avail += pavail[i].reg_size; if (cmdline_memory_size) { if (bytes_avail > cmdline_memory_size) { unsigned long slack = bytes_avail - cmdline_memory_size; @@ -1228,12 +1287,15 @@ unsigned long __init bootmem_init(unsigned long *pages_avail) bytes_avail -= slack; end_of_phys_memory -= slack; - sp_banks[i].num_bytes -= slack; - if (sp_banks[i].num_bytes == 0) { - sp_banks[i].base_addr = 0xdeadbeef; + pavail[i].reg_size -= slack; + if ((long)pavail[i].reg_size <= 0L) { + pavail[i].phys_addr = 0xdeadbeefUL; + pavail[i].reg_size = 0UL; + pavail_ents = i; } else { - sp_banks[i+1].num_bytes = 0; - sp_banks[i+1].base_addr = 0xdeadbeef; + pavail[i+1].reg_size = 0Ul; + pavail[i+1].phys_addr = 0xdeadbeefUL; + pavail_ents = i + 1; } break; } @@ -1287,12 +1349,12 @@ unsigned long __init bootmem_init(unsigned long *pages_avail) /* Now register the available physical memory with the * allocator. */ - for (i = 0; sp_banks[i].num_bytes != 0; i++) { + for (i = 0; i < pavail_ents; i++) { #ifdef CONFIG_DEBUG_BOOTMEM - prom_printf("free_bootmem(sp_banks:%d): base[%lx] size[%lx]\n", - i, sp_banks[i].base_addr, sp_banks[i].num_bytes); + prom_printf("free_bootmem(pavail:%d): base[%lx] size[%lx]\n", + i, pavail[i].phys_addr, pavail[i].reg_size); #endif - free_bootmem(sp_banks[i].base_addr, sp_banks[i].num_bytes); + free_bootmem(pavail[i].phys_addr, pavail[i].reg_size); } #ifdef CONFIG_BLK_DEV_INITRD @@ -1341,7 +1403,7 @@ static unsigned long kernel_map_range(unsigned long pstart, unsigned long pend, unsigned long alloc_bytes = 0UL; if ((vstart & ~PAGE_MASK) || (vend & ~PAGE_MASK)) { - prom_printf("kernel_map: Unaligned sp_banks[%lx:%lx]\n", + prom_printf("kernel_map: Unaligned physmem[%lx:%lx]\n", vstart, vend); prom_halt(); } @@ -1388,23 +1450,24 @@ static unsigned long kernel_map_range(unsigned long pstart, unsigned long pend, return alloc_bytes; } -extern struct linux_mlist_p1275 *prom_ptot_ptr; +static struct linux_prom64_registers pall[MAX_BANKS] __initdata; +static int pall_ents __initdata; + extern unsigned int kvmap_linear_patch[1]; static void __init kernel_physical_mapping_init(void) { - struct linux_mlist_p1275 *p = prom_ptot_ptr; - unsigned long mem_alloced = 0UL; + unsigned long i, mem_alloced = 0UL; - while (p) { + read_obp_memory("reg", &pall[0], &pall_ents); + + for (i = 0; i < pall_ents; i++) { unsigned long phys_start, phys_end; - phys_start = p->start_adr; - phys_end = phys_start + p->num_bytes; + phys_start = pall[i].phys_addr; + phys_end = phys_start + pall[i].reg_size; mem_alloced += kernel_map_range(phys_start, phys_end, PAGE_KERNEL); - - p = p->theres_more; } printk("Allocated %ld bytes for kernel page tables.\n", @@ -1434,62 +1497,16 @@ void kernel_map_pages(struct page *page, int numpages, int enable) unsigned long __init find_ecache_flush_span(unsigned long size) { - unsigned long i; + int i; - for (i = 0; ; i++) { - if (sp_banks[i].num_bytes == 0) - break; - if (sp_banks[i].num_bytes >= size) - return sp_banks[i].base_addr; + for (i = 0; i < pavail_ents; i++) { + if (pavail[i].reg_size >= size) + return pavail[i].phys_addr; } return ~0UL; } -static void __init prom_probe_memory(void) -{ - struct linux_mlist_p1275 *mlist; - unsigned long bytes, base_paddr, tally; - int i; - - i = 0; - mlist = *prom_meminfo()->p1275_available; - bytes = tally = mlist->num_bytes; - base_paddr = mlist->start_adr; - - sp_banks[0].base_addr = base_paddr; - sp_banks[0].num_bytes = bytes; - - while (mlist->theres_more != (void *) 0) { - i++; - mlist = mlist->theres_more; - bytes = mlist->num_bytes; - tally += bytes; - if (i >= SPARC_PHYS_BANKS-1) { - printk ("The machine has more banks than " - "this kernel can support\n" - "Increase the SPARC_PHYS_BANKS " - "setting (currently %d)\n", - SPARC_PHYS_BANKS); - i = SPARC_PHYS_BANKS-1; - break; - } - - sp_banks[i].base_addr = mlist->start_adr; - sp_banks[i].num_bytes = mlist->num_bytes; - } - - i++; - sp_banks[i].base_addr = 0xdeadbeefbeefdeadUL; - sp_banks[i].num_bytes = 0; - - /* Now mask all bank sizes on a page boundary, it is all we can - * use anyways. - */ - for (i = 0; sp_banks[i].num_bytes != 0; i++) - sp_banks[i].num_bytes &= PAGE_MASK; -} - /* paging_init() sets up the page tables */ extern void cheetah_ecache_flush_init(void); @@ -1502,17 +1519,13 @@ void __init paging_init(void) unsigned long end_pfn, pages_avail, shift; unsigned long real_end, i; - prom_probe_memory(); + /* Find available physical memory... */ + read_obp_memory("available", &pavail[0], &pavail_ents); phys_base = 0xffffffffffffffffUL; - for (i = 0; sp_banks[i].num_bytes != 0; i++) { - unsigned long top; + for (i = 0; i < pavail_ents; i++) + phys_base = min(phys_base, pavail[i].phys_addr); - if (sp_banks[i].base_addr < phys_base) - phys_base = sp_banks[i].base_addr; - top = sp_banks[i].base_addr + - sp_banks[i].num_bytes; - } pfn_base = phys_base >> PAGE_SHIFT; kern_base = (prom_boot_mapping_phys_low >> 22UL) << 22UL; @@ -1588,128 +1601,35 @@ void __init paging_init(void) device_scan(); } -/* Ok, it seems that the prom can allocate some more memory chunks - * as a side effect of some prom calls we perform during the - * boot sequence. My most likely theory is that it is from the - * prom_set_traptable() call, and OBP is allocating a scratchpad - * for saving client program register state etc. - */ -static void __init sort_memlist(struct linux_mlist_p1275 *thislist) -{ - int swapi = 0; - int i, mitr; - unsigned long tmpaddr, tmpsize; - unsigned long lowest; - - for (i = 0; thislist[i].theres_more != 0; i++) { - lowest = thislist[i].start_adr; - for (mitr = i+1; thislist[mitr-1].theres_more != 0; mitr++) - if (thislist[mitr].start_adr < lowest) { - lowest = thislist[mitr].start_adr; - swapi = mitr; - } - if (lowest == thislist[i].start_adr) - continue; - tmpaddr = thislist[swapi].start_adr; - tmpsize = thislist[swapi].num_bytes; - for (mitr = swapi; mitr > i; mitr--) { - thislist[mitr].start_adr = thislist[mitr-1].start_adr; - thislist[mitr].num_bytes = thislist[mitr-1].num_bytes; - } - thislist[i].start_adr = tmpaddr; - thislist[i].num_bytes = tmpsize; - } -} - -void __init rescan_sp_banks(void) -{ - struct linux_prom64_registers memlist[64]; - struct linux_mlist_p1275 avail[64], *mlist; - unsigned long bytes, base_paddr; - int num_regs, node = prom_finddevice("/memory"); - int i; - - num_regs = prom_getproperty(node, "available", - (char *) memlist, sizeof(memlist)); - num_regs = (num_regs / sizeof(struct linux_prom64_registers)); - for (i = 0; i < num_regs; i++) { - avail[i].start_adr = memlist[i].phys_addr; - avail[i].num_bytes = memlist[i].reg_size; - avail[i].theres_more = &avail[i + 1]; - } - avail[i - 1].theres_more = NULL; - sort_memlist(avail); - - mlist = &avail[0]; - i = 0; - bytes = mlist->num_bytes; - base_paddr = mlist->start_adr; - - sp_banks[0].base_addr = base_paddr; - sp_banks[0].num_bytes = bytes; - - while (mlist->theres_more != NULL){ - i++; - mlist = mlist->theres_more; - bytes = mlist->num_bytes; - if (i >= SPARC_PHYS_BANKS-1) { - printk ("The machine has more banks than " - "this kernel can support\n" - "Increase the SPARC_PHYS_BANKS " - "setting (currently %d)\n", - SPARC_PHYS_BANKS); - i = SPARC_PHYS_BANKS-1; - break; - } - - sp_banks[i].base_addr = mlist->start_adr; - sp_banks[i].num_bytes = mlist->num_bytes; - } - - i++; - sp_banks[i].base_addr = 0xdeadbeefbeefdeadUL; - sp_banks[i].num_bytes = 0; - - for (i = 0; sp_banks[i].num_bytes != 0; i++) - sp_banks[i].num_bytes &= PAGE_MASK; -} - static void __init taint_real_pages(void) { - struct sparc_phys_banks saved_sp_banks[SPARC_PHYS_BANKS]; int i; - for (i = 0; i < SPARC_PHYS_BANKS; i++) { - saved_sp_banks[i].base_addr = - sp_banks[i].base_addr; - saved_sp_banks[i].num_bytes = - sp_banks[i].num_bytes; - } + read_obp_memory("available", &pavail_rescan[0], &pavail_rescan_ents); - rescan_sp_banks(); - - /* Find changes discovered in the sp_bank rescan and + /* Find changes discovered in the physmem available rescan and * reserve the lost portions in the bootmem maps. */ - for (i = 0; saved_sp_banks[i].num_bytes; i++) { + for (i = 0; i < pavail_ents; i++) { unsigned long old_start, old_end; - old_start = saved_sp_banks[i].base_addr; + old_start = pavail[i].phys_addr; old_end = old_start + - saved_sp_banks[i].num_bytes; + pavail[i].reg_size; while (old_start < old_end) { int n; - for (n = 0; sp_banks[n].num_bytes; n++) { + for (n = 0; pavail_rescan_ents; n++) { unsigned long new_start, new_end; - new_start = sp_banks[n].base_addr; - new_end = new_start + sp_banks[n].num_bytes; + new_start = pavail_rescan[n].phys_addr; + new_end = new_start + + pavail_rescan[n].reg_size; if (new_start <= old_start && new_end >= (old_start + PAGE_SIZE)) { - set_bit (old_start >> 22, - sparc64_valid_addr_bitmap); + set_bit(old_start >> 22, + sparc64_valid_addr_bitmap); goto do_next_page; } } diff --git a/include/asm-sparc64/openprom.h b/include/asm-sparc64/openprom.h index 0a336901d585..b4959d2b0d99 100644 --- a/include/asm-sparc64/openprom.h +++ b/include/asm-sparc64/openprom.h @@ -186,8 +186,8 @@ struct linux_prom_registers { }; struct linux_prom64_registers { - long phys_addr; - long reg_size; + unsigned long phys_addr; + unsigned long reg_size; }; struct linux_prom_irqs { From 4cb29d18129fb425c6202ab535c3fc1856391b99 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Thu, 29 Sep 2005 18:05:28 -0700 Subject: [PATCH 266/352] [SPARC64]: Kill arch/sparc64/prom/memory.c No longer used. Signed-off-by: David S. Miller --- arch/sparc64/prom/Makefile | 2 +- arch/sparc64/prom/init.c | 3 - arch/sparc64/prom/memory.c | 152 ------------------------------------ include/asm-sparc64/oplib.h | 14 ---- 4 files changed, 1 insertion(+), 170 deletions(-) delete mode 100644 arch/sparc64/prom/memory.c diff --git a/arch/sparc64/prom/Makefile b/arch/sparc64/prom/Makefile index c7898a5ee456..3d33ed27bc27 100644 --- a/arch/sparc64/prom/Makefile +++ b/arch/sparc64/prom/Makefile @@ -6,5 +6,5 @@ EXTRA_AFLAGS := -ansi EXTRA_CFLAGS := -Werror -lib-y := bootstr.o devops.o init.o memory.o misc.o \ +lib-y := bootstr.o devops.o init.o misc.o \ tree.o console.o printf.o p1275.o cif.o diff --git a/arch/sparc64/prom/init.c b/arch/sparc64/prom/init.c index 8b4b622d0909..f3cc2d8578b2 100644 --- a/arch/sparc64/prom/init.c +++ b/arch/sparc64/prom/init.c @@ -27,7 +27,6 @@ int prom_chosen_node; * failure. It gets passed the pointer to the PROM vector. */ -extern void prom_meminit(void); extern void prom_cif_init(void *, void *); void __init prom_init(void *cif_handler, void *cif_stack) @@ -90,8 +89,6 @@ void __init prom_init(void *cif_handler, void *cif_stack) printk ("PROMLIB: Sun IEEE Boot Prom %s\n", buffer + bufadjust); - prom_meminit(); - /* Initialization successful. */ return; diff --git a/arch/sparc64/prom/memory.c b/arch/sparc64/prom/memory.c deleted file mode 100644 index f4a8143e052c..000000000000 --- a/arch/sparc64/prom/memory.c +++ /dev/null @@ -1,152 +0,0 @@ -/* $Id: memory.c,v 1.5 1999/08/31 06:55:04 davem Exp $ - * memory.c: Prom routine for acquiring various bits of information - * about RAM on the machine, both virtual and physical. - * - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) - * Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) - */ - -#include -#include - -#include -#include - -/* This routine, for consistency, returns the ram parameters in the - * V0 prom memory descriptor format. I choose this format because I - * think it was the easiest to work with. I feel the religious - * arguments now... ;) Also, I return the linked lists sorted to - * prevent paging_init() upset stomach as I have not yet written - * the pepto-bismol kernel module yet. - */ - -struct linux_prom64_registers prom_reg_memlist[64]; -struct linux_prom64_registers prom_reg_tmp[64]; - -struct linux_mlist_p1275 prom_phys_total[64]; -struct linux_mlist_p1275 prom_prom_taken[64]; -struct linux_mlist_p1275 prom_phys_avail[64]; - -struct linux_mlist_p1275 *prom_ptot_ptr = prom_phys_total; -struct linux_mlist_p1275 *prom_ptak_ptr = prom_prom_taken; -struct linux_mlist_p1275 *prom_pavl_ptr = prom_phys_avail; - -struct linux_mem_p1275 prom_memlist; - - -/* Internal Prom library routine to sort a linux_mlist_p1275 memory - * list. Used below in initialization. - */ -static void __init -prom_sortmemlist(struct linux_mlist_p1275 *thislist) -{ - int swapi = 0; - int i, mitr; - unsigned long tmpaddr, tmpsize; - unsigned long lowest; - - for(i=0; thislist[i].theres_more; i++) { - lowest = thislist[i].start_adr; - for(mitr = i+1; thislist[mitr-1].theres_more; mitr++) - if(thislist[mitr].start_adr < lowest) { - lowest = thislist[mitr].start_adr; - swapi = mitr; - } - if(lowest == thislist[i].start_adr) continue; - tmpaddr = thislist[swapi].start_adr; - tmpsize = thislist[swapi].num_bytes; - for(mitr = swapi; mitr > i; mitr--) { - thislist[mitr].start_adr = thislist[mitr-1].start_adr; - thislist[mitr].num_bytes = thislist[mitr-1].num_bytes; - } - thislist[i].start_adr = tmpaddr; - thislist[i].num_bytes = tmpsize; - } -} - -/* Initialize the memory lists based upon the prom version. */ -void __init prom_meminit(void) -{ - int node = 0; - unsigned int iter, num_regs; - - node = prom_finddevice("/memory"); - num_regs = prom_getproperty(node, "available", - (char *) prom_reg_memlist, - sizeof(prom_reg_memlist)); - num_regs = (num_regs/sizeof(struct linux_prom64_registers)); - for(iter=0; iter Date: Thu, 29 Sep 2005 18:50:34 -0700 Subject: [PATCH 267/352] [SPARC64]: Fix several bugs in flush_ptrace_access(). 1) Use cpudata cache line sizes, not magic constants. 2) Align start address in cheetah case so we do not get unaligned address traps. (pgrep was good at triggering this, via /proc/${pid}/cmdline accesses) Signed-off-by: David S. Miller --- arch/sparc64/kernel/ptrace.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/arch/sparc64/kernel/ptrace.c b/arch/sparc64/kernel/ptrace.c index 5efbff90d668..774ecbb8a031 100644 --- a/arch/sparc64/kernel/ptrace.c +++ b/arch/sparc64/kernel/ptrace.c @@ -31,6 +31,7 @@ #include #include #include +#include /* Returning from ptrace is a bit tricky because the syscall return * low level code assumes any value returned which is negative and @@ -132,12 +133,16 @@ void flush_ptrace_access(struct vm_area_struct *vma, struct page *page, if ((uaddr ^ (unsigned long) kaddr) & (1UL << 13)) { unsigned long start = __pa(kaddr); unsigned long end = start + len; + unsigned long dcache_line_size; + + dcache_line_size = local_cpu_data().dcache_line_size; if (tlb_type == spitfire) { - for (; start < end; start += 32) + for (; start < end; start += dcache_line_size) spitfire_put_dcache_tag(start & 0x3fe0, 0x0); } else { - for (; start < end; start += 32) + start &= ~(dcache_line_size - 1); + for (; start < end; start += dcache_line_size) __asm__ __volatile__( "stxa %%g0, [%0] %1\n\t" "membar #Sync" @@ -150,8 +155,11 @@ void flush_ptrace_access(struct vm_area_struct *vma, struct page *page, if (write && tlb_type == spitfire) { unsigned long start = (unsigned long) kaddr; unsigned long end = start + len; + unsigned long icache_line_size; - for (; start < end; start += 32) + icache_line_size = local_cpu_data().icache_line_size; + + for (; start < end; start += icache_line_size) flushi(start); } } From 017fb98e70351e9fb5635c299c4d1c50e2f8b823 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Thu, 29 Sep 2005 19:26:51 -0700 Subject: [PATCH 268/352] [RADEON]: Fix unaligned I/O port access during probe. The driver does a readl() on DEVICE_ID which is 2-byte aligned and 2-bytes in size. It's doing this read just to flush write buffers. Create IN16() and OUT16() macros, and use the former to do this I/O load. Signed-off-by: David S. Miller --- drivers/video/aty/radeon_base.c | 2 +- drivers/video/aty/radeonfb.h | 2 ++ 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/video/aty/radeon_base.c b/drivers/video/aty/radeon_base.c index 046b47860266..8a24a66d9ba8 100644 --- a/drivers/video/aty/radeon_base.c +++ b/drivers/video/aty/radeon_base.c @@ -475,7 +475,7 @@ static int __devinit radeon_probe_pll_params(struct radeonfb_info *rinfo) */ /* Flush PCI buffers ? */ - tmp = INREG(DEVICE_ID); + tmp = INREG16(DEVICE_ID); local_irq_disable(); diff --git a/drivers/video/aty/radeonfb.h b/drivers/video/aty/radeonfb.h index 659bc9f62244..01b8b2f78514 100644 --- a/drivers/video/aty/radeonfb.h +++ b/drivers/video/aty/radeonfb.h @@ -395,6 +395,8 @@ static inline void _radeon_msleep(struct radeonfb_info *rinfo, unsigned long ms) #define INREG8(addr) readb((rinfo->mmio_base)+addr) #define OUTREG8(addr,val) writeb(val, (rinfo->mmio_base)+addr) +#define INREG16(addr) readw((rinfo->mmio_base)+addr) +#define OUTREG16(addr,val) writew(val, (rinfo->mmio_base)+addr) #define INREG(addr) readl((rinfo->mmio_base)+addr) #define OUTREG(addr,val) writel(val, (rinfo->mmio_base)+addr) From 9d30c1718b8baf9a3bb1b81d78afc1e667863477 Mon Sep 17 00:00:00 2001 From: Horms Date: Thu, 29 Sep 2005 19:47:06 -0700 Subject: [PATCH 269/352] [IPVS]: Add netdev and me as maintainer contacts Signed-off-by: Horms Signed-off-by: David S. Miller --- MAINTAINERS | 3 +++ 1 file changed, 3 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index c1bc9a86a99d..f3d9adec5aa8 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1743,8 +1743,11 @@ S: Maintained IPVS P: Wensong Zhang M: wensong@linux-vs.org +P: Simon Horman +M: horms@verge.net.au P: Julian Anastasov M: ja@ssi.bg +L: netdev@vger.kernel.org S: Maintained NFS CLIENT From a4199b0b9aa540a27935251de788cd0f5f5a87aa Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 29 Sep 2005 19:49:17 -0700 Subject: [PATCH 270/352] [CASSINI]: sparse annotations and fixes - __user annotations - NULL noise removal - C99 initializers - s/u32/pm_message_t/ in ->suspend() - removal of bogus casts in iounmap() arguments - if_mii() instead of open-coded variant Remains to be done: ethtool conversion. Signed-off-by: Al Viro Signed-off-by: David S. Miller --- drivers/net/cassini.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/net/cassini.c b/drivers/net/cassini.c index 69cb368247e7..45831fb377a0 100644 --- a/drivers/net/cassini.c +++ b/drivers/net/cassini.c @@ -3244,7 +3244,7 @@ static int cas_get_vpd_info(struct cas *cp, unsigned char *dev_addr, goto use_random_mac_addr; /* search for beginning of vpd */ - base = 0; + base = NULL; for (i = 2; i < EXPANSION_ROM_SIZE; i++) { /* check for PCIR */ if ((readb(p + i + 0) == 0x50) && @@ -4564,7 +4564,7 @@ static void cas_set_multicast(struct net_device *dev) /* Eventually add support for changing the advertisement * on autoneg. */ -static int cas_ethtool_ioctl(struct net_device *dev, void *ep_user) +static int cas_ethtool_ioctl(struct net_device *dev, void __user *ep_user) { struct cas *cp = netdev_priv(dev); u16 bmcr; @@ -4578,7 +4578,7 @@ static int cas_ethtool_ioctl(struct net_device *dev, void *ep_user) switch(ecmd.cmd) { case ETHTOOL_GDRVINFO: { - struct ethtool_drvinfo info = { cmd: ETHTOOL_GDRVINFO }; + struct ethtool_drvinfo info = { .cmd = ETHTOOL_GDRVINFO }; strncpy(info.driver, DRV_MODULE_NAME, ETHTOOL_BUSINFO_LEN); @@ -4738,7 +4738,7 @@ static int cas_ethtool_ioctl(struct net_device *dev, void *ep_user) /* get link status */ case ETHTOOL_GLINK: { - struct ethtool_value edata = { cmd: ETHTOOL_GLINK }; + struct ethtool_value edata = { .cmd = ETHTOOL_GLINK }; edata.data = (cp->lstate == link_up); if (copy_to_user(ep_user, &edata, sizeof(edata))) @@ -4748,7 +4748,7 @@ static int cas_ethtool_ioctl(struct net_device *dev, void *ep_user) /* get message-level */ case ETHTOOL_GMSGLVL: { - struct ethtool_value edata = { cmd: ETHTOOL_GMSGLVL }; + struct ethtool_value edata = { .cmd = ETHTOOL_GMSGLVL }; edata.data = cp->msg_enable; if (copy_to_user(ep_user, &edata, sizeof(edata))) @@ -4874,7 +4874,7 @@ static int cas_ethtool_ioctl(struct net_device *dev, void *ep_user) static int cas_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) { struct cas *cp = netdev_priv(dev); - struct mii_ioctl_data *data = (struct mii_ioctl_data *)&ifr->ifr_data; + struct mii_ioctl_data *data = if_mii(ifr); unsigned long flags; int rc = -EOPNOTSUPP; @@ -5168,7 +5168,7 @@ err_out_iounmap: cas_shutdown(cp); up(&cp->pm_sem); - iounmap((void *) cp->regs); + iounmap(cp->regs); err_out_free_res: @@ -5216,7 +5216,7 @@ static void __devexit cas_remove_one(struct pci_dev *pdev) #endif pci_free_consistent(pdev, sizeof(struct cas_init_block), cp->init_block, cp->block_dvma); - iounmap((void *) cp->regs); + iounmap(cp->regs); free_netdev(dev); pci_release_regions(pdev); pci_disable_device(pdev); @@ -5224,7 +5224,7 @@ static void __devexit cas_remove_one(struct pci_dev *pdev) } #ifdef CONFIG_PM -static int cas_suspend(struct pci_dev *pdev, u32 state) +static int cas_suspend(struct pci_dev *pdev, pm_message_t state) { struct net_device *dev = pci_get_drvdata(pdev); struct cas *cp = netdev_priv(dev); From 481467d6fa4489aa42321a067e78bad26349488f Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Fri, 30 Sep 2005 16:07:04 +0100 Subject: [PATCH 271/352] [ARM] 2939/1: Fix compilation error in arch/arm/mm/flush.c Patch from Catalin Marinas When CONFIG_CPU_CACHE_VIPT is defined, the flush_pfn_alias() function is implicitely declared and it later conflicts with its actual definition. This patch moves the function definition to the beginning of the file. Signed-off-by: Catalin Marinas Signed-off-by: Russell King --- arch/arm/mm/flush.c | 36 ++++++++++++++++++------------------ 1 file changed, 18 insertions(+), 18 deletions(-) diff --git a/arch/arm/mm/flush.c b/arch/arm/mm/flush.c index b0208c992576..c9a03981b785 100644 --- a/arch/arm/mm/flush.c +++ b/arch/arm/mm/flush.c @@ -17,6 +17,24 @@ #ifdef CONFIG_CPU_CACHE_VIPT +#define ALIAS_FLUSH_START 0xffff4000 + +#define TOP_PTE(x) pte_offset_kernel(top_pmd, x) + +static void flush_pfn_alias(unsigned long pfn, unsigned long vaddr) +{ + unsigned long to = ALIAS_FLUSH_START + (CACHE_COLOUR(vaddr) << PAGE_SHIFT); + + set_pte(TOP_PTE(to), pfn_pte(pfn, PAGE_KERNEL)); + flush_tlb_kernel_page(to); + + asm( "mcrr p15, 0, %1, %0, c14\n" + " mcrr p15, 0, %1, %0, c5\n" + : + : "r" (to), "r" (to + PAGE_SIZE - L1_CACHE_BYTES) + : "cc"); +} + void flush_cache_mm(struct mm_struct *mm) { if (cache_is_vivt()) { @@ -67,24 +85,6 @@ 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); } - -#define ALIAS_FLUSH_START 0xffff4000 - -#define TOP_PTE(x) pte_offset_kernel(top_pmd, x) - -static void flush_pfn_alias(unsigned long pfn, unsigned long vaddr) -{ - unsigned long to = ALIAS_FLUSH_START + (CACHE_COLOUR(vaddr) << PAGE_SHIFT); - - set_pte(TOP_PTE(to), pfn_pte(pfn, PAGE_KERNEL)); - flush_tlb_kernel_page(to); - - asm( "mcrr p15, 0, %1, %0, c14\n" - " mcrr p15, 0, %1, %0, c5\n" - : - : "r" (to), "r" (to + PAGE_SIZE - L1_CACHE_BYTES) - : "cc"); -} #else #define flush_pfn_alias(pfn,vaddr) do { } while (0) #endif From a06f5466c4576dcbf838a50a87903b0082774da7 Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Fri, 30 Sep 2005 16:07:05 +0100 Subject: [PATCH 272/352] [ARM] 2942/1: Fix the warning in arch/arm/common/gic.c Patch from Catalin Marinas The warning is caused by the gic_set_cpu() function being defined but not used if CONFIG_SMP is not defined. Signed-off-by: Catalin Marinas Signed-off-by: Russell King --- arch/arm/common/gic.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/common/gic.c b/arch/arm/common/gic.c index d74990717559..c02dc8116a18 100644 --- a/arch/arm/common/gic.c +++ b/arch/arm/common/gic.c @@ -68,6 +68,7 @@ static void gic_unmask_irq(unsigned int irq) writel(mask, gic_dist_base + GIC_DIST_ENABLE_SET + (irq / 32) * 4); } +#ifdef CONFIG_SMP static void gic_set_cpu(struct irqdesc *desc, unsigned int irq, unsigned int cpu) { void __iomem *reg = gic_dist_base + GIC_DIST_TARGET + (irq & ~3); @@ -78,6 +79,7 @@ static void gic_set_cpu(struct irqdesc *desc, unsigned int irq, unsigned int cpu val |= 1 << (cpu + shift); writel(val, reg); } +#endif static struct irqchip gic_chip = { .ack = gic_ack_irq, From 217874feed0d3a6543a6b7127782f4a08bffd731 Mon Sep 17 00:00:00 2001 From: Gen FUKATSU Date: Fri, 30 Sep 2005 16:09:17 +0100 Subject: [PATCH 273/352] [ARM] 2940/1: Fix BTB entry flush in arch/arm/mm/cache-v6.S Patch from Gen FUKATSU Invalidate BTB entry instruction flushes two instruction at a time. Therefore this instruction should be done four times after invalidate instruction cache line. Signed-off-by: Gen Fukatsu Signed-off-by: Catalin Marinas Signed-off-by: Russell King --- arch/arm/mm/cache-v6.S | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/arch/arm/mm/cache-v6.S b/arch/arm/mm/cache-v6.S index 85c10a71e7c6..72966d90e956 100644 --- a/arch/arm/mm/cache-v6.S +++ b/arch/arm/mm/cache-v6.S @@ -18,6 +18,7 @@ #define HARVARD_CACHE #define CACHE_LINE_SIZE 32 #define D_CACHE_LINE_SIZE 32 +#define BTB_FLUSH_SIZE 8 /* * v6_flush_cache_all() @@ -98,7 +99,13 @@ ENTRY(v6_coherent_user_range) mcr p15, 0, r0, c7, c5, 1 @ invalidate I line #endif mcr p15, 0, r0, c7, c5, 7 @ invalidate BTB entry - add r0, r0, #CACHE_LINE_SIZE + add r0, r0, #BTB_FLUSH_SIZE + mcr p15, 0, r0, c7, c5, 7 @ invalidate BTB entry + add r0, r0, #BTB_FLUSH_SIZE + mcr p15, 0, r0, c7, c5, 7 @ invalidate BTB entry + add r0, r0, #BTB_FLUSH_SIZE + mcr p15, 0, r0, c7, c5, 7 @ invalidate BTB entry + add r0, r0, #BTB_FLUSH_SIZE cmp r0, r1 blo 1b #ifdef HARVARD_CACHE From 192eaa28ba7b44485e521df7ba7a2ccbc4cc4d13 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 30 Sep 2005 03:15:08 +0100 Subject: [PATCH 274/352] [PATCH] missing ERR_PTR in 9fs Signed-off-by: Al Viro Signed-off-by: Linus Torvalds --- fs/9p/vfs_super.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c index 0957f4da91d4..82c5b0084079 100644 --- a/fs/9p/vfs_super.c +++ b/fs/9p/vfs_super.c @@ -129,7 +129,7 @@ static struct super_block *v9fs_get_sb(struct file_system_type if ((newfid = v9fs_session_init(v9ses, dev_name, data)) < 0) { dprintk(DEBUG_ERROR, "problem initiating session\n"); - return newfid; + return ERR_PTR(newfid); } sb = sget(fs_type, NULL, v9fs_set_super, v9ses); From 74ba1fd96666170338dc732480b35b7a83cd164b Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 30 Sep 2005 03:16:43 +0100 Subject: [PATCH 275/352] [PATCH] useless linux/irq.h includes (arch/um) Signed-off-by: Al Viro Signed-off-by: Linus Torvalds --- arch/um/drivers/port_kern.c | 1 - arch/um/kernel/irq.c | 1 - 2 files changed, 2 deletions(-) diff --git a/arch/um/drivers/port_kern.c b/arch/um/drivers/port_kern.c index c41efd207fcc..189839e4f1d4 100644 --- a/arch/um/drivers/port_kern.c +++ b/arch/um/drivers/port_kern.c @@ -7,7 +7,6 @@ #include "linux/sched.h" #include "linux/slab.h" #include "linux/interrupt.h" -#include "linux/irq.h" #include "linux/spinlock.h" #include "linux/errno.h" #include "asm/atomic.h" diff --git a/arch/um/kernel/irq.c b/arch/um/kernel/irq.c index dcd814971995..bbf94bf2921e 100644 --- a/arch/um/kernel/irq.c +++ b/arch/um/kernel/irq.c @@ -9,7 +9,6 @@ #include "linux/kernel.h" #include "linux/module.h" #include "linux/smp.h" -#include "linux/irq.h" #include "linux/kernel_stat.h" #include "linux/interrupt.h" #include "linux/random.h" From 46d7031ecb8a8360b0022abd8014f38cc1197166 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 30 Sep 2005 03:21:45 +0100 Subject: [PATCH 276/352] [PATCH] cassini annotations and fixes - __user annotations - NULL noise removal - C99 initializers - s/u32/pm_message_t/ in ->suspend() - removal of bogus casts in iounmap() arguments - if_mii() instead of open-coded variant Remains to be done: ethtool conversion. Signed-off-by: Al Viro Signed-off-by: Linus Torvalds --- drivers/net/cassini.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/net/cassini.c b/drivers/net/cassini.c index 69cb368247e7..45831fb377a0 100644 --- a/drivers/net/cassini.c +++ b/drivers/net/cassini.c @@ -3244,7 +3244,7 @@ static int cas_get_vpd_info(struct cas *cp, unsigned char *dev_addr, goto use_random_mac_addr; /* search for beginning of vpd */ - base = 0; + base = NULL; for (i = 2; i < EXPANSION_ROM_SIZE; i++) { /* check for PCIR */ if ((readb(p + i + 0) == 0x50) && @@ -4564,7 +4564,7 @@ static void cas_set_multicast(struct net_device *dev) /* Eventually add support for changing the advertisement * on autoneg. */ -static int cas_ethtool_ioctl(struct net_device *dev, void *ep_user) +static int cas_ethtool_ioctl(struct net_device *dev, void __user *ep_user) { struct cas *cp = netdev_priv(dev); u16 bmcr; @@ -4578,7 +4578,7 @@ static int cas_ethtool_ioctl(struct net_device *dev, void *ep_user) switch(ecmd.cmd) { case ETHTOOL_GDRVINFO: { - struct ethtool_drvinfo info = { cmd: ETHTOOL_GDRVINFO }; + struct ethtool_drvinfo info = { .cmd = ETHTOOL_GDRVINFO }; strncpy(info.driver, DRV_MODULE_NAME, ETHTOOL_BUSINFO_LEN); @@ -4738,7 +4738,7 @@ static int cas_ethtool_ioctl(struct net_device *dev, void *ep_user) /* get link status */ case ETHTOOL_GLINK: { - struct ethtool_value edata = { cmd: ETHTOOL_GLINK }; + struct ethtool_value edata = { .cmd = ETHTOOL_GLINK }; edata.data = (cp->lstate == link_up); if (copy_to_user(ep_user, &edata, sizeof(edata))) @@ -4748,7 +4748,7 @@ static int cas_ethtool_ioctl(struct net_device *dev, void *ep_user) /* get message-level */ case ETHTOOL_GMSGLVL: { - struct ethtool_value edata = { cmd: ETHTOOL_GMSGLVL }; + struct ethtool_value edata = { .cmd = ETHTOOL_GMSGLVL }; edata.data = cp->msg_enable; if (copy_to_user(ep_user, &edata, sizeof(edata))) @@ -4874,7 +4874,7 @@ static int cas_ethtool_ioctl(struct net_device *dev, void *ep_user) static int cas_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) { struct cas *cp = netdev_priv(dev); - struct mii_ioctl_data *data = (struct mii_ioctl_data *)&ifr->ifr_data; + struct mii_ioctl_data *data = if_mii(ifr); unsigned long flags; int rc = -EOPNOTSUPP; @@ -5168,7 +5168,7 @@ err_out_iounmap: cas_shutdown(cp); up(&cp->pm_sem); - iounmap((void *) cp->regs); + iounmap(cp->regs); err_out_free_res: @@ -5216,7 +5216,7 @@ static void __devexit cas_remove_one(struct pci_dev *pdev) #endif pci_free_consistent(pdev, sizeof(struct cas_init_block), cp->init_block, cp->block_dvma); - iounmap((void *) cp->regs); + iounmap(cp->regs); free_netdev(dev); pci_release_regions(pdev); pci_disable_device(pdev); @@ -5224,7 +5224,7 @@ static void __devexit cas_remove_one(struct pci_dev *pdev) } #ifdef CONFIG_PM -static int cas_suspend(struct pci_dev *pdev, u32 state) +static int cas_suspend(struct pci_dev *pdev, pm_message_t state) { struct net_device *dev = pci_get_drvdata(pdev); struct cas *cp = netdev_priv(dev); From eacaa1f5aa4a41a48349f55abcd9258506943e76 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 30 Sep 2005 03:26:43 +0100 Subject: [PATCH 277/352] [PATCH] cpuset crapectomy Switched cpuset_common_file_read() to simple_read_from_buffer(), killed a bunch of useless (and not quite correct - e.g. min(size_t,ssize_t)) code. Signed-off-by: Al Viro Signed-off-by: Linus Torvalds --- kernel/cpuset.c | 12 +----------- 1 file changed, 1 insertion(+), 11 deletions(-) diff --git a/kernel/cpuset.c b/kernel/cpuset.c index 6a6e87b2f2fd..45a5719a0104 100644 --- a/kernel/cpuset.c +++ b/kernel/cpuset.c @@ -968,8 +968,6 @@ static ssize_t cpuset_common_file_read(struct file *file, char __user *buf, char *page; ssize_t retval = 0; char *s; - char *start; - ssize_t n; if (!(page = (char *)__get_free_page(GFP_KERNEL))) return -ENOMEM; @@ -999,15 +997,7 @@ static ssize_t cpuset_common_file_read(struct file *file, char __user *buf, *s++ = '\n'; *s = '\0'; - start = page + *ppos; - n = s - start; - - /* Do nothing if *ppos is at the eof or beyond the eof. */ - if (n <= 0) - goto out; - - retval = n - copy_to_user(buf, start, min(n, nbytes)); - *ppos += retval; + retval = simple_read_from_buffer(buf, nbytes, ppos, page, s - page); out: free_page((unsigned long)page); return retval; From 4735885701d7c24ed54f35f5102d32b3aabee55e Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 30 Sep 2005 03:29:05 +0100 Subject: [PATCH 278/352] [PATCH] uml get_user() NULL noise removal Signed-off-by: Al Viro Signed-off-by: Linus Torvalds --- include/asm-um/uaccess.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/asm-um/uaccess.h b/include/asm-um/uaccess.h index 801710d00a40..2ee028b8de9d 100644 --- a/include/asm-um/uaccess.h +++ b/include/asm-um/uaccess.h @@ -44,7 +44,7 @@ const __typeof__(ptr) __private_ptr = ptr; \ __typeof__(*(__private_ptr)) __private_val; \ int __private_ret = -EFAULT; \ - (x) = 0; \ + (x) = (__typeof__(*(__private_ptr)))0; \ if (__copy_from_user(&__private_val, (__private_ptr), \ sizeof(*(__private_ptr))) == 0) {\ (x) = (__typeof__(*(__private_ptr))) __private_val; \ From c215a16a4ad620b612b51495cbb99dbbb59bb585 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 30 Sep 2005 03:36:50 +0100 Subject: [PATCH 279/352] [PATCH] bogus BUILD_BUG_ON() in bpa_iommu BUILD_BUG_ON(1) is asking for trouble (and getting it) when used in that manner - dead code elimination happens after we parse it and invalid type is invalid type, dead code or not. It might be version-dependent, but at least 4.0.1 refuses to accept that. Signed-off-by: Al Viro Signed-off-by: Linus Torvalds --- arch/ppc64/kernel/bpa_iommu.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/ppc64/kernel/bpa_iommu.c b/arch/ppc64/kernel/bpa_iommu.c index f33a7bccb0d7..507eb9d0223f 100644 --- a/arch/ppc64/kernel/bpa_iommu.c +++ b/arch/ppc64/kernel/bpa_iommu.c @@ -99,7 +99,11 @@ get_iost_entry(unsigned long iopt_base, unsigned long io_address, unsigned page_ break; default: /* not a known compile time constant */ - BUILD_BUG_ON(1); + { + /* BUILD_BUG_ON() is not usable here */ + extern void __get_iost_entry_bad_page_size(void); + __get_iost_entry_bad_page_size(); + } break; } From 66df3bbf0701b7408a1067c4b819aceee2686bba Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 30 Sep 2005 04:19:43 +0100 Subject: [PATCH 280/352] [PATCH] volatile unsigned short f(...) doesn't make sense Signed-off-by: Al Viro Signed-off-by: Linus Torvalds --- drivers/net/bmac.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/bmac.c b/drivers/net/bmac.c index 8dc657fc8afb..60dba4a1ca5c 100644 --- a/drivers/net/bmac.c +++ b/drivers/net/bmac.c @@ -218,7 +218,7 @@ void bmwrite(struct net_device *dev, unsigned long reg_offset, unsigned data ) static inline -volatile unsigned short bmread(struct net_device *dev, unsigned long reg_offset ) +unsigned short bmread(struct net_device *dev, unsigned long reg_offset ) { return in_le16((void __iomem *)dev->base_addr + reg_offset); } From a3ca066efb18524bf3f07137a8f8ff434022c4f2 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 30 Sep 2005 04:20:57 +0100 Subject: [PATCH 281/352] [PATCH] missing qualifiers in readb() et.al. on ppc Signed-off-by: Al Viro Signed-off-by: Linus Torvalds --- include/asm-ppc/io.h | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git a/include/asm-ppc/io.h b/include/asm-ppc/io.h index 7eb7cf6360bd..94d83998a759 100644 --- a/include/asm-ppc/io.h +++ b/include/asm-ppc/io.h @@ -56,7 +56,7 @@ extern unsigned long pci_dram_offset; * is actually performed (i.e. the data has come back) before we start * executing any following instructions. */ -extern inline int in_8(volatile unsigned char __iomem *addr) +extern inline int in_8(const volatile unsigned char __iomem *addr) { int ret; @@ -72,7 +72,7 @@ extern inline void out_8(volatile unsigned char __iomem *addr, int val) __asm__ __volatile__("stb%U0%X0 %1,%0; eieio" : "=m" (*addr) : "r" (val)); } -extern inline int in_le16(volatile unsigned short __iomem *addr) +extern inline int in_le16(const volatile unsigned short __iomem *addr) { int ret; @@ -83,7 +83,7 @@ extern inline int in_le16(volatile unsigned short __iomem *addr) return ret; } -extern inline int in_be16(volatile unsigned short __iomem *addr) +extern inline int in_be16(const volatile unsigned short __iomem *addr) { int ret; @@ -104,7 +104,7 @@ extern inline void out_be16(volatile unsigned short __iomem *addr, int val) __asm__ __volatile__("sth%U0%X0 %1,%0; eieio" : "=m" (*addr) : "r" (val)); } -extern inline unsigned in_le32(volatile unsigned __iomem *addr) +extern inline unsigned in_le32(const volatile unsigned __iomem *addr) { unsigned ret; @@ -115,7 +115,7 @@ extern inline unsigned in_le32(volatile unsigned __iomem *addr) return ret; } -extern inline unsigned in_be32(volatile unsigned __iomem *addr) +extern inline unsigned in_be32(const volatile unsigned __iomem *addr) { unsigned ret; @@ -139,7 +139,7 @@ extern inline void out_be32(volatile unsigned __iomem *addr, int val) #define readb(addr) in_8((volatile u8 *)(addr)) #define writeb(b,addr) out_8((volatile u8 *)(addr), (b)) #else -static inline __u8 readb(volatile void __iomem *addr) +static inline __u8 readb(const volatile void __iomem *addr) { return in_8(addr); } @@ -150,11 +150,11 @@ static inline void writeb(__u8 b, volatile void __iomem *addr) #endif #if defined(CONFIG_APUS) -static inline __u16 readw(volatile void __iomem *addr) +static inline __u16 readw(const volatile void __iomem *addr) { return *(__force volatile __u16 *)(addr); } -static inline __u32 readl(volatile void __iomem *addr) +static inline __u32 readl(const volatile void __iomem *addr) { return *(__force volatile __u32 *)(addr); } @@ -173,11 +173,11 @@ static inline void writel(__u32 b, volatile void __iomem *addr) #define writew(b,addr) out_le16((volatile u16 *)(addr),(b)) #define writel(b,addr) out_le32((volatile u32 *)(addr),(b)) #else -static inline __u16 readw(volatile void __iomem *addr) +static inline __u16 readw(const volatile void __iomem *addr) { return in_le16(addr); } -static inline __u32 readl(volatile void __iomem *addr) +static inline __u32 readl(const volatile void __iomem *addr) { return in_le32(addr); } From 794fb8370db3d5f26592b9b45d69aeca2f583efb Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 30 Sep 2005 05:09:34 +0100 Subject: [PATCH 282/352] [PATCH] useless includes of linux/irq.h (arch/ppc) Signed-off-by: Al Viro Signed-off-by: Linus Torvalds --- arch/ppc/platforms/4xx/bamboo.c | 1 - arch/ppc/platforms/4xx/ebony.c | 1 - arch/ppc/platforms/4xx/luan.c | 1 - arch/ppc/platforms/4xx/ocotea.c | 1 - arch/ppc/platforms/83xx/mpc834x_sys.c | 1 - arch/ppc/platforms/85xx/mpc8540_ads.c | 1 - arch/ppc/platforms/85xx/mpc8560_ads.c | 1 - arch/ppc/platforms/85xx/mpc85xx_ads_common.c | 1 - arch/ppc/platforms/85xx/mpc85xx_cds_common.c | 1 - arch/ppc/platforms/85xx/sbc8560.c | 1 - arch/ppc/platforms/85xx/sbc85xx.c | 1 - arch/ppc/platforms/85xx/stx_gp3.c | 1 - arch/ppc/platforms/chestnut.c | 1 - arch/ppc/platforms/chrp_setup.c | 1 - arch/ppc/platforms/gemini_setup.c | 1 - arch/ppc/platforms/mvme5100.c | 1 - arch/ppc/platforms/pmac_setup.c | 1 - arch/ppc/platforms/powerpmc250.c | 1 - arch/ppc/platforms/pplus.c | 1 - arch/ppc/platforms/prpmc750.c | 1 - arch/ppc/platforms/prpmc800.c | 1 - arch/ppc/platforms/radstone_ppc7d.c | 2 -- arch/ppc/platforms/sandpoint.c | 1 - arch/ppc/syslib/open_pic.c | 1 - arch/ppc/syslib/open_pic2.c | 1 - arch/ppc/syslib/ppc4xx_setup.c | 1 - 26 files changed, 27 deletions(-) diff --git a/arch/ppc/platforms/4xx/bamboo.c b/arch/ppc/platforms/4xx/bamboo.c index ac391d463d78..78a403b48dba 100644 --- a/arch/ppc/platforms/4xx/bamboo.c +++ b/arch/ppc/platforms/4xx/bamboo.c @@ -27,7 +27,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/ppc/platforms/4xx/ebony.c b/arch/ppc/platforms/4xx/ebony.c index d6b2b1965dcb..27b778ab903b 100644 --- a/arch/ppc/platforms/4xx/ebony.c +++ b/arch/ppc/platforms/4xx/ebony.c @@ -30,7 +30,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/ppc/platforms/4xx/luan.c b/arch/ppc/platforms/4xx/luan.c index a38e6f9ef858..16d953bda22c 100644 --- a/arch/ppc/platforms/4xx/luan.c +++ b/arch/ppc/platforms/4xx/luan.c @@ -28,7 +28,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/ppc/platforms/4xx/ocotea.c b/arch/ppc/platforms/4xx/ocotea.c index 80028df1b445..506949c5dd29 100644 --- a/arch/ppc/platforms/4xx/ocotea.c +++ b/arch/ppc/platforms/4xx/ocotea.c @@ -28,7 +28,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/ppc/platforms/83xx/mpc834x_sys.c b/arch/ppc/platforms/83xx/mpc834x_sys.c index b38a851a64ec..79b3f533d0a3 100644 --- a/arch/ppc/platforms/83xx/mpc834x_sys.c +++ b/arch/ppc/platforms/83xx/mpc834x_sys.c @@ -24,7 +24,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/ppc/platforms/85xx/mpc8540_ads.c b/arch/ppc/platforms/85xx/mpc8540_ads.c index f761fdf160db..7dc8a68acfd0 100644 --- a/arch/ppc/platforms/85xx/mpc8540_ads.c +++ b/arch/ppc/platforms/85xx/mpc8540_ads.c @@ -24,7 +24,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/ppc/platforms/85xx/mpc8560_ads.c b/arch/ppc/platforms/85xx/mpc8560_ads.c index f2748c88665a..8841fd7da6ee 100644 --- a/arch/ppc/platforms/85xx/mpc8560_ads.c +++ b/arch/ppc/platforms/85xx/mpc8560_ads.c @@ -24,7 +24,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/ppc/platforms/85xx/mpc85xx_ads_common.c b/arch/ppc/platforms/85xx/mpc85xx_ads_common.c index 18e952d1767c..bd3ac0136756 100644 --- a/arch/ppc/platforms/85xx/mpc85xx_ads_common.c +++ b/arch/ppc/platforms/85xx/mpc85xx_ads_common.c @@ -24,7 +24,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/ppc/platforms/85xx/mpc85xx_cds_common.c b/arch/ppc/platforms/85xx/mpc85xx_cds_common.c index 6267b294f704..9f9039498ae5 100644 --- a/arch/ppc/platforms/85xx/mpc85xx_cds_common.c +++ b/arch/ppc/platforms/85xx/mpc85xx_cds_common.c @@ -24,7 +24,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/ppc/platforms/85xx/sbc8560.c b/arch/ppc/platforms/85xx/sbc8560.c index 165df94d4aa6..c76760a781c1 100644 --- a/arch/ppc/platforms/85xx/sbc8560.c +++ b/arch/ppc/platforms/85xx/sbc8560.c @@ -24,7 +24,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/ppc/platforms/85xx/sbc85xx.c b/arch/ppc/platforms/85xx/sbc85xx.c index 4f6d1ddd6fb8..c02f110219f5 100644 --- a/arch/ppc/platforms/85xx/sbc85xx.c +++ b/arch/ppc/platforms/85xx/sbc85xx.c @@ -23,7 +23,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/ppc/platforms/85xx/stx_gp3.c b/arch/ppc/platforms/85xx/stx_gp3.c index c99b365d6110..20940f4044f4 100644 --- a/arch/ppc/platforms/85xx/stx_gp3.c +++ b/arch/ppc/platforms/85xx/stx_gp3.c @@ -30,7 +30,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/ppc/platforms/chestnut.c b/arch/ppc/platforms/chestnut.c index 7786818bd9d0..df6ff98c023a 100644 --- a/arch/ppc/platforms/chestnut.c +++ b/arch/ppc/platforms/chestnut.c @@ -35,7 +35,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/ppc/platforms/chrp_setup.c b/arch/ppc/platforms/chrp_setup.c index 57f29ab29bda..66346f0de7ec 100644 --- a/arch/ppc/platforms/chrp_setup.c +++ b/arch/ppc/platforms/chrp_setup.c @@ -32,7 +32,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/ppc/platforms/gemini_setup.c b/arch/ppc/platforms/gemini_setup.c index e391e52383c7..3a5ff9fb71d6 100644 --- a/arch/ppc/platforms/gemini_setup.c +++ b/arch/ppc/platforms/gemini_setup.c @@ -21,7 +21,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/ppc/platforms/mvme5100.c b/arch/ppc/platforms/mvme5100.c index b292b44b760c..ce2ce88c8033 100644 --- a/arch/ppc/platforms/mvme5100.c +++ b/arch/ppc/platforms/mvme5100.c @@ -20,7 +20,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/ppc/platforms/pmac_setup.c b/arch/ppc/platforms/pmac_setup.c index 4c56a4734aec..d6356f480d90 100644 --- a/arch/ppc/platforms/pmac_setup.c +++ b/arch/ppc/platforms/pmac_setup.c @@ -48,7 +48,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/ppc/platforms/powerpmc250.c b/arch/ppc/platforms/powerpmc250.c index 0abe15159e6c..e6b520e6e13f 100644 --- a/arch/ppc/platforms/powerpmc250.c +++ b/arch/ppc/platforms/powerpmc250.c @@ -26,7 +26,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/ppc/platforms/pplus.c b/arch/ppc/platforms/pplus.c index 65705c911795..e70aae20d6f9 100644 --- a/arch/ppc/platforms/pplus.c +++ b/arch/ppc/platforms/pplus.c @@ -22,7 +22,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/ppc/platforms/prpmc750.c b/arch/ppc/platforms/prpmc750.c index 24ae1caafc61..0bb14a5e824c 100644 --- a/arch/ppc/platforms/prpmc750.c +++ b/arch/ppc/platforms/prpmc750.c @@ -24,7 +24,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/ppc/platforms/prpmc800.c b/arch/ppc/platforms/prpmc800.c index 8b09fa69b35b..de7baefacd3a 100644 --- a/arch/ppc/platforms/prpmc800.c +++ b/arch/ppc/platforms/prpmc800.c @@ -22,7 +22,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/ppc/platforms/radstone_ppc7d.c b/arch/ppc/platforms/radstone_ppc7d.c index c30607a972d8..0376c8cff5d1 100644 --- a/arch/ppc/platforms/radstone_ppc7d.c +++ b/arch/ppc/platforms/radstone_ppc7d.c @@ -32,7 +32,6 @@ #include #include #include -#include #include #include #include @@ -59,7 +58,6 @@ #include #include #include -#include #include "radstone_ppc7d.h" diff --git a/arch/ppc/platforms/sandpoint.c b/arch/ppc/platforms/sandpoint.c index 21e31346b12b..5232283c1974 100644 --- a/arch/ppc/platforms/sandpoint.c +++ b/arch/ppc/platforms/sandpoint.c @@ -74,7 +74,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/ppc/syslib/open_pic.c b/arch/ppc/syslib/open_pic.c index 53da58523e39..1cf5de21a3fd 100644 --- a/arch/ppc/syslib/open_pic.c +++ b/arch/ppc/syslib/open_pic.c @@ -13,7 +13,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/ppc/syslib/open_pic2.c b/arch/ppc/syslib/open_pic2.c index 9a7e8748e2b2..16cff91d9f41 100644 --- a/arch/ppc/syslib/open_pic2.c +++ b/arch/ppc/syslib/open_pic2.c @@ -17,7 +17,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/ppc/syslib/ppc4xx_setup.c b/arch/ppc/syslib/ppc4xx_setup.c index b843c4fef25e..bf83240689dc 100644 --- a/arch/ppc/syslib/ppc4xx_setup.c +++ b/arch/ppc/syslib/ppc4xx_setup.c @@ -18,7 +18,6 @@ #include #include #include -#include #include #include #include From 1294b118cb53fb14515666e2b218ad5ab40318c1 Mon Sep 17 00:00:00 2001 From: Kirill Korotaev Date: Fri, 30 Sep 2005 10:32:19 +0400 Subject: [PATCH 283/352] [PATCH] x86_64: Add missing () around arguments of pte_index macro x86-64: Add missing () around arguments of pte_index macro Signed-Off-By: Alexey Kuznetsov Signed-Off-By: Kirill Korotaev Signed-off-by: Linus Torvalds --- include/asm-x86_64/pgtable.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/asm-x86_64/pgtable.h b/include/asm-x86_64/pgtable.h index 2cb483516459..dd8711ecaf2f 100644 --- a/include/asm-x86_64/pgtable.h +++ b/include/asm-x86_64/pgtable.h @@ -384,7 +384,7 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) } #define pte_index(address) \ - ((address >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)) + (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)) #define pte_offset_kernel(dir, address) ((pte_t *) pmd_page_kernel(*(dir)) + \ pte_index(address)) From 03cdc0c304e1c068d49adc32264f07af76253e4c Mon Sep 17 00:00:00 2001 From: Daniel Ritz Date: Thu, 29 Sep 2005 21:39:32 +0200 Subject: [PATCH 284/352] [PATCH] usb/core/hcd-pci.c: don't free_irq() on suspend the free_irq() in USB suspend breaks resume on some setups where USB (ohci/ehci) shares the interrupt with an other device. Signed-off-by: Daniel Ritz Signed-off-by: Linus Torvalds --- drivers/usb/core/hcd-pci.c | 9 --------- 1 file changed, 9 deletions(-) diff --git a/drivers/usb/core/hcd-pci.c b/drivers/usb/core/hcd-pci.c index cbb451d227d2..6385d1a99b60 100644 --- a/drivers/usb/core/hcd-pci.c +++ b/drivers/usb/core/hcd-pci.c @@ -242,7 +242,6 @@ int usb_hcd_pci_suspend (struct pci_dev *dev, pm_message_t message) case HC_STATE_SUSPENDED: /* no DMA or IRQs except when HC is active */ if (dev->current_state == PCI_D0) { - free_irq (hcd->irq, hcd); pci_save_state (dev); pci_disable_device (dev); } @@ -374,14 +373,6 @@ int usb_hcd_pci_resume (struct pci_dev *dev) hcd->state = HC_STATE_RESUMING; hcd->saw_irq = 0; - retval = request_irq (dev->irq, usb_hcd_irq, SA_SHIRQ, - hcd->irq_descr, hcd); - if (retval < 0) { - dev_err (hcd->self.controller, - "can't restore IRQ after resume!\n"); - usb_hc_died (hcd); - return retval; - } retval = hcd->driver->resume (hcd); if (!HC_IS_RUNNING (hcd->state)) { From b33fa1f3c3ec05e54e73f06c4578948c55d89ef6 Mon Sep 17 00:00:00 2001 From: Nick Piggin Date: Sat, 1 Oct 2005 02:34:42 +1000 Subject: [PATCH 285/352] [PATCH] i386: include linux/irq.h rather than asm/hw_irq.h I need the following patch to compile -git8 here, otherwise these files fail to compile (asm/hw_irq.h needs definitions from linux/irq.h and that file provides the required include ordering). I did not do a full audit, though there looks to be many other places that should get the same treatment, if this is the right way to do it. Signed-off-by: Linus Torvalds --- arch/i386/kernel/acpi/boot.c | 2 +- arch/i386/pci/acpi.c | 2 +- arch/i386/pci/irq.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/i386/kernel/acpi/boot.c b/arch/i386/kernel/acpi/boot.c index 838437b2d241..b66c13c0cc0f 100644 --- a/arch/i386/kernel/acpi/boot.c +++ b/arch/i386/kernel/acpi/boot.c @@ -29,12 +29,12 @@ #include #include #include +#include #include #include #include #include -#include #include #ifdef CONFIG_X86_64 diff --git a/arch/i386/pci/acpi.c b/arch/i386/pci/acpi.c index 7e7a202df3c8..4c4522b43be5 100644 --- a/arch/i386/pci/acpi.c +++ b/arch/i386/pci/acpi.c @@ -1,7 +1,7 @@ #include #include #include -#include +#include #include #include "pci.h" diff --git a/arch/i386/pci/irq.c b/arch/i386/pci/irq.c index 281ed8ab347a..cddafe33ff7c 100644 --- a/arch/i386/pci/irq.c +++ b/arch/i386/pci/irq.c @@ -15,7 +15,7 @@ #include #include #include -#include +#include #include #include "pci.h" From 13402580021a52e49c6d1068ff28ade4d5a175f1 Mon Sep 17 00:00:00 2001 From: James Morris Date: Fri, 30 Sep 2005 14:24:34 -0400 Subject: [PATCH 286/352] [PATCH] SELinux - fix SCTP socket bug and general IP protocol handling The following patch updates the way SELinux classifies and handles IP based protocols. Currently, IP sockets are classified by SELinux as being either TCP, UDP or 'Raw', the latter being a default for IP socket that is not TCP or UDP. The classification code is out of date and uses only the socket type parameter to socket(2) to determine the class of IP socket. So, any socket created with SOCK_STREAM will be classified by SELinux as TCP, and SOCK_DGRAM as UDP. Also, other socket types such as SOCK_SEQPACKET and SOCK_DCCP are currently ignored by SELinux, which classifies them as generic sockets, which means they don't even get basic IP level checking. This patch changes the SELinux IP socket classification logic, so that only an IPPROTO_IP protocol value passed to socket(2) classify the socket as TCP or UDP. The patch also drops the check for SOCK_RAW and converts it into a default, so that socket types like SOCK_DCCP and SOCK_SEQPACKET are classified as SECCLASS_RAWIP_SOCKET (instead of generic sockets). Note that protocol-specific support for SCTP, DCCP etc. is not addressed here, we're just getting these protocols checked at the IP layer. This fixes a reported problem where SCTP sockets were being recognized as generic SELinux sockets yet still being passed in one case to an IP level check, which then fails for generic sockets. It will also fix bugs where any SOCK_STREAM socket is classified as TCP or any SOCK_DGRAM socket is classified as UDP. This patch also unifies the way IP sockets classes are determined in selinux_socket_bind(), so we use the already calculated value instead of trying to recalculate it. Signed-off-by: James Morris Signed-off-by: Stephen Smalley Signed-off-by: Linus Torvalds --- security/selinux/hooks.c | 30 ++++++++++++++++++++++++------ 1 file changed, 24 insertions(+), 6 deletions(-) diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index 6e4937fe062b..b13be15165f5 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -630,6 +630,16 @@ static inline u16 inode_mode_to_security_class(umode_t mode) return SECCLASS_FILE; } +static inline int default_protocol_stream(int protocol) +{ + return (protocol == IPPROTO_IP || protocol == IPPROTO_TCP); +} + +static inline int default_protocol_dgram(int protocol) +{ + return (protocol == IPPROTO_IP || protocol == IPPROTO_UDP); +} + static inline u16 socket_type_to_security_class(int family, int type, int protocol) { switch (family) { @@ -646,10 +656,16 @@ static inline u16 socket_type_to_security_class(int family, int type, int protoc case PF_INET6: switch (type) { case SOCK_STREAM: - return SECCLASS_TCP_SOCKET; + if (default_protocol_stream(protocol)) + return SECCLASS_TCP_SOCKET; + else + return SECCLASS_RAWIP_SOCKET; case SOCK_DGRAM: - return SECCLASS_UDP_SOCKET; - case SOCK_RAW: + if (default_protocol_dgram(protocol)) + return SECCLASS_UDP_SOCKET; + else + return SECCLASS_RAWIP_SOCKET; + default: return SECCLASS_RAWIP_SOCKET; } break; @@ -2970,6 +2986,8 @@ static int selinux_socket_bind(struct socket *sock, struct sockaddr *address, in /* * If PF_INET or PF_INET6, check name_bind permission for the port. + * Multiple address binding for SCTP is not supported yet: we just + * check the first address now. */ family = sock->sk->sk_family; if (family == PF_INET || family == PF_INET6) { @@ -3014,12 +3032,12 @@ static int selinux_socket_bind(struct socket *sock, struct sockaddr *address, in goto out; } - switch(sk->sk_protocol) { - case IPPROTO_TCP: + switch(isec->sclass) { + case SECCLASS_TCP_SOCKET: node_perm = TCP_SOCKET__NODE_BIND; break; - case IPPROTO_UDP: + case SECCLASS_UDP_SOCKET: node_perm = UDP_SOCKET__NODE_BIND; break; From 6e3254c4e2927c117044a02acf5f5b56e1373053 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 30 Sep 2005 12:38:27 -0700 Subject: [PATCH 287/352] Revert "x86-64: Reverse order of bootmem lists" As requested by Thomas Gleixner : "5d3d0f7704ed0bc7eaca0501eeae3e5da1ea6c87 breaks a couple of ARM boards, which depend on the historical bootmem allocation order. There is a cleaner solution around to remove the pgdat list completely, but this is a topic for post 2.6.14 Andi signalled ACK already." Signed-off-by: Linus Torvalds --- mm/bootmem.c | 12 ++---------- 1 file changed, 2 insertions(+), 10 deletions(-) diff --git a/mm/bootmem.c b/mm/bootmem.c index 8ec4e4c2a179..c1330cc19783 100644 --- a/mm/bootmem.c +++ b/mm/bootmem.c @@ -61,17 +61,9 @@ static unsigned long __init init_bootmem_core (pg_data_t *pgdat, { bootmem_data_t *bdata = pgdat->bdata; unsigned long mapsize = ((end - start)+7)/8; - static struct pglist_data *pgdat_last; - pgdat->pgdat_next = NULL; - /* Add new nodes last so that bootmem always starts - searching in the first nodes, not the last ones */ - if (pgdat_last) - pgdat_last->pgdat_next = pgdat; - else { - pgdat_list = pgdat; - pgdat_last = pgdat; - } + pgdat->pgdat_next = pgdat_list; + pgdat_list = pgdat; mapsize = ALIGN(mapsize, sizeof(long)); bdata->node_bootmem_map = phys_to_virt(mapstart << PAGE_SHIFT); From 998765e5588b197737d457e16f72832d8036190f Mon Sep 17 00:00:00 2001 From: Zach Brown Date: Fri, 30 Sep 2005 11:58:54 -0700 Subject: [PATCH 288/352] [PATCH] aio: lock around kiocbTryKick() Only one of the run or kick path is supposed to put an iocb on the run list. If both of them do it than one of them can end up referencing a freed iocb. The kick patch could set the Kicked bit before acquiring the ctx_lock and putting the iocb on the run list. The run path, while holding the ctx_lock, could see this partial kick and mistake it for a kick that was deferred while it was doing work with the run_list NULLed out. It would then race with the kick thread to add the iocb to the run list. This patch moves the kick setting under the ctx_lock so that only one of the kick or run path queues the iocb on the run list, as intended. Signed-off-by: Zach Brown Signed-off-by: Benjamin LaHaise Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/aio.c | 19 ++++++++++++------- 1 file changed, 12 insertions(+), 7 deletions(-) diff --git a/fs/aio.c b/fs/aio.c index 0e11e31dbb77..b8f296999c04 100644 --- a/fs/aio.c +++ b/fs/aio.c @@ -899,16 +899,24 @@ static void aio_kick_handler(void *data) * and if required activate the aio work queue to process * it */ -static void queue_kicked_iocb(struct kiocb *iocb) +static void try_queue_kicked_iocb(struct kiocb *iocb) { struct kioctx *ctx = iocb->ki_ctx; unsigned long flags; int run = 0; - WARN_ON((!list_empty(&iocb->ki_wait.task_list))); + /* We're supposed to be the only path putting the iocb back on the run + * list. If we find that the iocb is *back* on a wait queue already + * than retry has happened before we could queue the iocb. This also + * means that the retry could have completed and freed our iocb, no + * good. */ + BUG_ON((!list_empty(&iocb->ki_wait.task_list))); spin_lock_irqsave(&ctx->ctx_lock, flags); - run = __queue_kicked_iocb(iocb); + /* set this inside the lock so that we can't race with aio_run_iocb() + * testing it and putting the iocb on the run list under the lock */ + if (!kiocbTryKick(iocb)) + run = __queue_kicked_iocb(iocb); spin_unlock_irqrestore(&ctx->ctx_lock, flags); if (run) aio_queue_work(ctx); @@ -931,10 +939,7 @@ void fastcall kick_iocb(struct kiocb *iocb) return; } - /* If its already kicked we shouldn't queue it again */ - if (!kiocbTryKick(iocb)) { - queue_kicked_iocb(iocb); - } + try_queue_kicked_iocb(iocb); } EXPORT_SYMBOL(kick_iocb); From 897f15fb587fd2772b9e7ff6ec0265057f3c3975 Mon Sep 17 00:00:00 2001 From: Zach Brown Date: Fri, 30 Sep 2005 11:58:55 -0700 Subject: [PATCH 289/352] [PATCH] aio: remove unlocked task_list test and resulting race Only one of the run or kick path is supposed to put an iocb on the run list. If both of them do it than one of them can end up referencing a freed iocb. The kick path could delete the task_list item from the wait queue before getting the ctx_lock and putting the iocb on the run list. The run path was testing the task_list item outside the lock so that it could catch ki_retry methods that return -EIOCBRETRY *without* putting the iocb on a wait queue and promising to call kick_iocb. This unlocked check could then race with the kick path to cause both to try and put the iocb on the run list. The patch stops the run path from testing task_list by requring that any ki_retry that returns -EIOCBRETRY *must* guarantee that kick_iocb() will be called in the future. aio_p{read,write}, the only in-tree -EIOCBRETRY users, are updated. Signed-off-by: Zach Brown Signed-off-by: Benjamin LaHaise Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/aio.c | 81 +++++++++++++++++++-------------------------- include/linux/aio.h | 34 +++++++++++++++++++ 2 files changed, 68 insertions(+), 47 deletions(-) diff --git a/fs/aio.c b/fs/aio.c index b8f296999c04..9edc0e4a1219 100644 --- a/fs/aio.c +++ b/fs/aio.c @@ -741,19 +741,9 @@ static ssize_t aio_run_iocb(struct kiocb *iocb) ret = retry(iocb); current->io_wait = NULL; - if (-EIOCBRETRY != ret) { - if (-EIOCBQUEUED != ret) { - BUG_ON(!list_empty(&iocb->ki_wait.task_list)); - aio_complete(iocb, ret, 0); - /* must not access the iocb after this */ - } - } else { - /* - * Issue an additional retry to avoid waiting forever if - * no waits were queued (e.g. in case of a short read). - */ - if (list_empty(&iocb->ki_wait.task_list)) - kiocbSetKicked(iocb); + if (ret != -EIOCBRETRY && ret != -EIOCBQUEUED) { + BUG_ON(!list_empty(&iocb->ki_wait.task_list)); + aio_complete(iocb, ret, 0); } out: spin_lock_irq(&ctx->ctx_lock); @@ -1327,8 +1317,11 @@ asmlinkage long sys_io_destroy(aio_context_t ctx) } /* - * Default retry method for aio_read (also used for first time submit) - * Responsible for updating iocb state as retries progress + * aio_p{read,write} are the default ki_retry methods for + * IO_CMD_P{READ,WRITE}. They maintains kiocb retry state around potentially + * multiple calls to f_op->aio_read(). They loop around partial progress + * instead of returning -EIOCBRETRY because they don't have the means to call + * kick_iocb(). */ static ssize_t aio_pread(struct kiocb *iocb) { @@ -1337,25 +1330,25 @@ static ssize_t aio_pread(struct kiocb *iocb) struct inode *inode = mapping->host; ssize_t ret = 0; - ret = file->f_op->aio_read(iocb, iocb->ki_buf, - iocb->ki_left, iocb->ki_pos); - - /* - * Can't just depend on iocb->ki_left to determine - * whether we are done. This may have been a short read. - */ - if (ret > 0) { - iocb->ki_buf += ret; - iocb->ki_left -= ret; + do { + ret = file->f_op->aio_read(iocb, iocb->ki_buf, + iocb->ki_left, iocb->ki_pos); /* - * For pipes and sockets we return once we have - * some data; for regular files we retry till we - * complete the entire read or find that we can't - * read any more data (e.g short reads). + * Can't just depend on iocb->ki_left to determine + * whether we are done. This may have been a short read. */ - if (!S_ISFIFO(inode->i_mode) && !S_ISSOCK(inode->i_mode)) - ret = -EIOCBRETRY; - } + if (ret > 0) { + iocb->ki_buf += ret; + iocb->ki_left -= ret; + } + + /* + * For pipes and sockets we return once we have some data; for + * regular files we retry till we complete the entire read or + * find that we can't read any more data (e.g short reads). + */ + } while (ret > 0 && + !S_ISFIFO(inode->i_mode) && !S_ISSOCK(inode->i_mode)); /* This means we must have transferred all that we could */ /* No need to retry anymore */ @@ -1365,27 +1358,21 @@ static ssize_t aio_pread(struct kiocb *iocb) return ret; } -/* - * Default retry method for aio_write (also used for first time submit) - * Responsible for updating iocb state as retries progress - */ +/* see aio_pread() */ static ssize_t aio_pwrite(struct kiocb *iocb) { struct file *file = iocb->ki_filp; ssize_t ret = 0; - ret = file->f_op->aio_write(iocb, iocb->ki_buf, - iocb->ki_left, iocb->ki_pos); + do { + ret = file->f_op->aio_write(iocb, iocb->ki_buf, + iocb->ki_left, iocb->ki_pos); + if (ret > 0) { + iocb->ki_buf += ret; + iocb->ki_left -= ret; + } + } while (ret > 0); - if (ret > 0) { - iocb->ki_buf += ret; - iocb->ki_left -= ret; - - ret = -EIOCBRETRY; - } - - /* This means we must have transferred all that we could */ - /* No need to retry anymore */ if ((ret == 0) || (iocb->ki_left == 0)) ret = iocb->ki_nbytes - iocb->ki_left; diff --git a/include/linux/aio.h b/include/linux/aio.h index a4d5af907f90..60def658b246 100644 --- a/include/linux/aio.h +++ b/include/linux/aio.h @@ -43,6 +43,40 @@ struct kioctx; #define kiocbIsKicked(iocb) test_bit(KIF_KICKED, &(iocb)->ki_flags) #define kiocbIsCancelled(iocb) test_bit(KIF_CANCELLED, &(iocb)->ki_flags) +/* is there a better place to document function pointer methods? */ +/** + * ki_retry - iocb forward progress callback + * @kiocb: The kiocb struct to advance by performing an operation. + * + * This callback is called when the AIO core wants a given AIO operation + * to make forward progress. The kiocb argument describes the operation + * that is to be performed. As the operation proceeds, perhaps partially, + * ki_retry is expected to update the kiocb with progress made. Typically + * ki_retry is set in the AIO core and it itself calls file_operations + * helpers. + * + * ki_retry's return value determines when the AIO operation is completed + * and an event is generated in the AIO event ring. Except the special + * return values described below, the value that is returned from ki_retry + * is transferred directly into the completion ring as the operation's + * resulting status. Once this has happened ki_retry *MUST NOT* reference + * the kiocb pointer again. + * + * If ki_retry returns -EIOCBQUEUED it has made a promise that aio_complete() + * will be called on the kiocb pointer in the future. The AIO core will + * not ask the method again -- ki_retry must ensure forward progress. + * aio_complete() must be called once and only once in the future, multiple + * calls may result in undefined behaviour. + * + * If ki_retry returns -EIOCBRETRY it has made a promise that kick_iocb() + * will be called on the kiocb pointer in the future. This may happen + * through generic helpers that associate kiocb->ki_wait with a wait + * queue head that ki_retry uses via current->io_wait. It can also happen + * with custom tracking and manual calls to kick_iocb(), though that is + * discouraged. In either case, kick_iocb() must be called once and only + * once. ki_retry must ensure forward progress, the AIO core will wait + * indefinitely for kick_iocb() to be called. + */ struct kiocb { struct list_head ki_run_list; long ki_flags; From 353fb07e2043d2df12dddf4e2c39552d0ab9b026 Mon Sep 17 00:00:00 2001 From: Zach Brown Date: Fri, 30 Sep 2005 11:58:56 -0700 Subject: [PATCH 290/352] [PATCH] aio: avoid extra aio_{read,write} call when ki_left == 0 Recently aio_p{read,write} changed to perform retries internally rather than returning -EIOCBRETRY. This inadvertantly resulted in always calling aio_{read,write} with ki_left at 0 which would in turn immediately return 0. Harmless, but we can avoid this call by checking in the caller. Signed-off-by: Zach Brown Signed-off-by: Benjamin LaHaise Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/aio.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/aio.c b/fs/aio.c index 9edc0e4a1219..d6b1551342b7 100644 --- a/fs/aio.c +++ b/fs/aio.c @@ -1347,7 +1347,7 @@ static ssize_t aio_pread(struct kiocb *iocb) * regular files we retry till we complete the entire read or * find that we can't read any more data (e.g short reads). */ - } while (ret > 0 && + } while (ret > 0 && iocb->ki_left > 0 && !S_ISFIFO(inode->i_mode) && !S_ISSOCK(inode->i_mode)); /* This means we must have transferred all that we could */ @@ -1371,7 +1371,7 @@ static ssize_t aio_pwrite(struct kiocb *iocb) iocb->ki_buf += ret; iocb->ki_left -= ret; } - } while (ret > 0); + } while (ret > 0 && iocb->ki_left > 0); if ((ret == 0) || (iocb->ki_left == 0)) ret = iocb->ki_nbytes - iocb->ki_left; From d96c4e7bb039ae16c9b7e6809feb4fcfc45fcc87 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Fri, 30 Sep 2005 11:58:57 -0700 Subject: [PATCH 291/352] [PATCH] x86: hw_irq.h warning fix include/asm/hw_irq.h:70: warning: `struct hw_interrupt_type' declared inside parameter list include/asm/hw_irq.h:70: warning: its scope is only this definition or declaration, which is probably not what you want Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-i386/hw_irq.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/asm-i386/hw_irq.h b/include/asm-i386/hw_irq.h index 4ac84cc6f01a..622815bf3243 100644 --- a/include/asm-i386/hw_irq.h +++ b/include/asm-i386/hw_irq.h @@ -18,6 +18,8 @@ #include #include +struct hw_interrupt_type; + /* * Various low-level irq details needed by irq.c, process.c, * time.c, io_apic.c and smp.c From 79dfa4a5a2eea5035de793b1633031750fe8d3ff Mon Sep 17 00:00:00 2001 From: Michael Krufky Date: Fri, 30 Sep 2005 11:58:58 -0700 Subject: [PATCH 292/352] [PATCH] v4l: DViCO FusionHDTV5 Lite GPIO Fix GPIO fix for the composite and tv mute states of bt8xx card #135: DViCO FusionHDTV5 Lite. Without this patch, selecting one of these states could produce unexpected behavior. Signed-off-by: Michael Krufky Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/media/video/bttv-cards.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/video/bttv-cards.c b/drivers/media/video/bttv-cards.c index 190977a1e549..6c332800d6ab 100644 --- a/drivers/media/video/bttv-cards.c +++ b/drivers/media/video/bttv-cards.c @@ -2398,7 +2398,7 @@ struct tvcard bttv_tvcards[] = { .svhs = 2, .muxsel = { 2, 3 }, .gpiomask = 0x00e00007, - .audiomux = { 0x00400005, 0, 0, 0, 0, 0 }, + .audiomux = { 0x00400005, 0, 0x00000001, 0, 0x00c00007, 0 }, .no_msp34xx = 1, .no_tda9875 = 1, .no_tda7432 = 1, From be662a18b7763496a052d489206af9ca2c2e1ac2 Mon Sep 17 00:00:00 2001 From: Paolo 'Blaisorblade' Giarrusso Date: Fri, 30 Sep 2005 11:58:59 -0700 Subject: [PATCH 293/352] [PATCH] uml: fix page faults in SKAS3 mode. I hadn't been running a SKAS3 host when testing the "uml: fix hang in TT mode on fault" patch (commit 546fe1cbf91d4d62e3849517c31a2327c992e5c5), and I didn't think enough to the missing trap_no in SKAS3 mode. In fact, the resulting kernel doesn't work at all in SKAS3 mode. Signed-off-by: Paolo 'Blaisorblade' Giarrusso Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/include/sysdep-i386/sigcontext.h | 10 +++++++++- arch/um/include/sysdep-x86_64/sigcontext.h | 5 ++++- arch/um/kernel/trap_kern.c | 5 ++++- 3 files changed, 17 insertions(+), 3 deletions(-) diff --git a/arch/um/include/sysdep-i386/sigcontext.h b/arch/um/include/sysdep-i386/sigcontext.h index 1fe729265167..23fd2644d7ed 100644 --- a/arch/um/include/sysdep-i386/sigcontext.h +++ b/arch/um/include/sysdep-i386/sigcontext.h @@ -6,6 +6,7 @@ #ifndef __SYS_SIGCONTEXT_I386_H #define __SYS_SIGCONTEXT_I386_H +#include "uml-config.h" #include #define IP_RESTART_SYSCALL(ip) ((ip) -= 2) @@ -26,7 +27,14 @@ #define SC_START_SYSCALL(sc) do SC_EAX(sc) = -ENOSYS; while(0) /* This is Page Fault */ -#define SEGV_IS_FIXABLE(fi) ((fi)->trap_no == 14) +#define SEGV_IS_FIXABLE(fi) ((fi)->trap_no == 14) + +/* SKAS3 has no trap_no on i386, but get_skas_faultinfo() sets it to 0. */ +#ifdef UML_CONFIG_MODE_SKAS +#define SEGV_MAYBE_FIXABLE(fi) ((fi)->trap_no == 0 && ptrace_faultinfo) +#else +#define SEGV_MAYBE_FIXABLE(fi) 0 +#endif extern unsigned long *sc_sigmask(void *sc_ptr); extern int sc_get_fpregs(unsigned long buf, void *sc_ptr); diff --git a/arch/um/include/sysdep-x86_64/sigcontext.h b/arch/um/include/sysdep-x86_64/sigcontext.h index 2a78260d15a0..41073235e7ad 100644 --- a/arch/um/include/sysdep-x86_64/sigcontext.h +++ b/arch/um/include/sysdep-x86_64/sigcontext.h @@ -31,7 +31,10 @@ #define SC_START_SYSCALL(sc) do SC_RAX(sc) = -ENOSYS; while(0) /* This is Page Fault */ -#define SEGV_IS_FIXABLE(fi) ((fi)->trap_no == 14) +#define SEGV_IS_FIXABLE(fi) ((fi)->trap_no == 14) + +/* No broken SKAS API, which doesn't pass trap_no, here. */ +#define SEGV_MAYBE_FIXABLE(fi) 0 extern unsigned long *sc_sigmask(void *sc_ptr); diff --git a/arch/um/kernel/trap_kern.c b/arch/um/kernel/trap_kern.c index d297429ac360..95c8f8733baf 100644 --- a/arch/um/kernel/trap_kern.c +++ b/arch/um/kernel/trap_kern.c @@ -26,6 +26,9 @@ #include "mconsole_kern.h" #include "mem.h" #include "mem_kern.h" +#ifdef CONFIG_MODE_SKAS +#include "skas.h" +#endif /* Note this is constrained to return 0, -EFAULT, -EACCESS, -ENOMEM by segv(). */ int handle_page_fault(unsigned long address, unsigned long ip, @@ -134,7 +137,7 @@ unsigned long segv(struct faultinfo fi, unsigned long ip, int is_user, void *sc) else if(current->mm == NULL) panic("Segfault with no mm"); - if (SEGV_IS_FIXABLE(&fi)) + if (SEGV_IS_FIXABLE(&fi) || SEGV_MAYBE_FIXABLE(&fi)) err = handle_page_fault(address, ip, is_write, is_user, &si.si_code); else { err = -EFAULT; From 8923648c125421b0fcb240cde607e2748d099ab8 Mon Sep 17 00:00:00 2001 From: Paolo 'Blaisorblade' Giarrusso Date: Fri, 30 Sep 2005 11:59:00 -0700 Subject: [PATCH 294/352] [PATCH] uml: clear SKAS0/3 flags when running in TT mode SEGV_MAYBE_FIXABLE tests ptrace_faultinfo, and depends on it being 1 only in SKAS3 mode, while currently when running with mode=tt it will be 1 anyway. Fix this, and do the same for proc_mm. Signed-off-by: Paolo 'Blaisorblade' Giarrusso Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/include/os.h | 4 ++++ arch/um/kernel/um_arch.c | 2 ++ 2 files changed, 6 insertions(+) diff --git a/arch/um/include/os.h b/arch/um/include/os.h index 583329d0a539..6f766e1faecc 100644 --- a/arch/um/include/os.h +++ b/arch/um/include/os.h @@ -157,6 +157,10 @@ extern int os_lock_file(int fd, int excl); extern void os_early_checks(void); extern int can_do_skas(void); +/* Make sure they are clear when running in TT mode. Required by + * SEGV_MAYBE_FIXABLE */ +#define clear_can_do_skas() do { ptrace_faultinfo = proc_mm = 0; } while (0) + /* mem.c */ extern int create_mem_file(unsigned long len); diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c index f0a275947d34..93dc782dc1cc 100644 --- a/arch/um/kernel/um_arch.c +++ b/arch/um/kernel/um_arch.c @@ -334,6 +334,8 @@ int linux_main(int argc, char **argv) add_arg(DEFAULT_COMMAND_LINE); os_early_checks(); + if (force_tt) + clear_can_do_skas(); mode_tt = force_tt ? 1 : !can_do_skas(); #ifndef CONFIG_MODE_TT if (mode_tt) { From bd948057357db5febfe64cf7a9ef11d7e347ffec Mon Sep 17 00:00:00 2001 From: Paolo 'Blaisorblade' Giarrusso Date: Fri, 30 Sep 2005 11:59:00 -0700 Subject: [PATCH 295/352] [PATCH] uml: revert "run mconsole "sysrq" in process context" Revert commit 12ebcd73e40e09f0dfddf89e465cc0541e0ff8b1, i.e. [PATCH] uml: run mconsole "sysrq" in process context on request from Jeff Dike. a) sysrq may be run when the scheduler is non-functioning b) the warning I wanted to fix actually came from the fault handler run in atomic context. But I fixed that not to take the semaphore in a separate patch. c) the fault handler is run because of a fault, and that fault was unaffected by this patch. Signed-off-by: Paolo 'Blaisorblade' Giarrusso Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/drivers/mconsole_user.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/um/drivers/mconsole_user.c b/arch/um/drivers/mconsole_user.c index 04383f98f4d5..310c1f823f26 100644 --- a/arch/um/drivers/mconsole_user.c +++ b/arch/um/drivers/mconsole_user.c @@ -23,7 +23,7 @@ static struct mconsole_command commands[] = { { "reboot", mconsole_reboot, MCONSOLE_PROC }, { "config", mconsole_config, MCONSOLE_PROC }, { "remove", mconsole_remove, MCONSOLE_PROC }, - { "sysrq", mconsole_sysrq, MCONSOLE_PROC }, + { "sysrq", mconsole_sysrq, MCONSOLE_INTR }, { "help", mconsole_help, MCONSOLE_INTR }, { "cad", mconsole_cad, MCONSOLE_INTR }, { "stop", mconsole_stop, MCONSOLE_PROC }, From daa35edc0a967d1f77c2e2c1346f57d04371487a Mon Sep 17 00:00:00 2001 From: Paolo 'Blaisorblade' Giarrusso Date: Fri, 30 Sep 2005 11:59:01 -0700 Subject: [PATCH 296/352] [PATCH] uml: remove empty hostfs_truncate method Calling truncate() on hostfs spits a kernel warning "Something isn't implemented here", but it still works fine. Indeed, hostfs i_op->truncate doesn't do anything. But hostfs_setattr() -> set_attr() correctly detects ATTR_SIZE and calls truncate() on the host. So we should be safe (using ftruncate() may be better, in case the file is unlinked on the host, but we aren't sure to have the file open for writing, and reopening it would cause the same races; plus nobody should expect UML to be so careful). So, the warning is wrong, because the current implementation is working. Al, am I correct, and can the warning be therefore dropped? CC: Al Viro Signed-off-by: Paolo 'Blaisorblade' Giarrusso Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/hostfs/hostfs_kern.c | 7 ------- 1 file changed, 7 deletions(-) diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c index 59c5062cd63f..dd7113106269 100644 --- a/fs/hostfs/hostfs_kern.c +++ b/fs/hostfs/hostfs_kern.c @@ -793,11 +793,6 @@ int hostfs_rename(struct inode *from_ino, struct dentry *from, return(err); } -void hostfs_truncate(struct inode *ino) -{ - not_implemented(); -} - int hostfs_permission(struct inode *ino, int desired, struct nameidata *nd) { char *name; @@ -894,7 +889,6 @@ static struct inode_operations hostfs_iops = { .rmdir = hostfs_rmdir, .mknod = hostfs_mknod, .rename = hostfs_rename, - .truncate = hostfs_truncate, .permission = hostfs_permission, .setattr = hostfs_setattr, .getattr = hostfs_getattr, @@ -910,7 +904,6 @@ static struct inode_operations hostfs_dir_iops = { .rmdir = hostfs_rmdir, .mknod = hostfs_mknod, .rename = hostfs_rename, - .truncate = hostfs_truncate, .permission = hostfs_permission, .setattr = hostfs_setattr, .getattr = hostfs_getattr, From dd190d066b7ded8c44b2b67dd0a14bed01525d3c Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Fri, 30 Sep 2005 11:59:02 -0700 Subject: [PATCH 297/352] [PATCH] fuse: check O_DIRECT Check O_DIRECT and return -EINVAL error in open. dentry_open() also checks this but only after the open method is called. This patch optimizes away the unnecessary upcalls in this case. It could be a correctness issue too: if filesystem has open() with side effect, then it should fail before doing the open, not after. Signed-off-by: Miklos Szeredi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/fuse/file.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/fuse/file.c b/fs/fuse/file.c index 6454022b0536..657ab11c173b 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -23,6 +23,10 @@ int fuse_open_common(struct inode *inode, struct file *file, int isdir) struct fuse_file *ff; int err; + /* VFS checks this, but only _after_ ->open() */ + if (file->f_flags & O_DIRECT) + return -EINVAL; + err = generic_file_open(inode, file); if (err) return err; From d38e24e260daf11365efd4ed621235fe9c0ba7ee Mon Sep 17 00:00:00 2001 From: Brent Casavant Date: Fri, 30 Sep 2005 11:59:04 -0700 Subject: [PATCH 298/352] [PATCH] ioc4_serial: Remove bogus error message This change removes a bogus error message from the IOC4 serial driver interrupt handler. This error message is bogus for two reasons. First, it can never occur given that current code takes care to initialize IOC4 in such a way that these "unknown" interrupts could never occur. Second, this code fails to take into account that other drivers can share the IOC4 interrupt mechanism through SA_SHIRQ, and thus this driver is not in-fact "all-knowing". Finally, this error message triggers every time some "unknown" interrupt occurs -- it's not rate limited or repetition limited in any way, thereby effectively denying use of the console device. Given its bogosity in the first place, it's best to just get rid of it entirely. Acked-by: Pat Gefre Signed-off-by: Brent Casavant Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/serial/ioc4_serial.c | 12 ------------ 1 file changed, 12 deletions(-) diff --git a/drivers/serial/ioc4_serial.c b/drivers/serial/ioc4_serial.c index 0c5c96a582b3..f88fdd480685 100644 --- a/drivers/serial/ioc4_serial.c +++ b/drivers/serial/ioc4_serial.c @@ -973,18 +973,6 @@ static irqreturn_t ioc4_intr(int irq, void *arg, struct pt_regs *regs) this_ir &= ~this_mir; } } - if (this_ir) { - printk(KERN_ERR - "unknown IOC4 %s interrupt 0x%x, sio_ir = 0x%x," - " sio_ies = 0x%x, other_ir = 0x%x :" - "other_ies = 0x%x\n", - (intr_type == IOC4_SIO_INTR_TYPE) ? "sio" : - "other", this_ir, - readl(&soft->is_ioc4_misc_addr->sio_ir.raw), - readl(&soft->is_ioc4_misc_addr->sio_ies.raw), - readl(&soft->is_ioc4_misc_addr->other_ir.raw), - readl(&soft->is_ioc4_misc_addr->other_ies.raw)); - } } #ifdef DEBUG_INTERRUPTS { From 105d7b38b08f85c9abc3fd31e5cfa7ee4cf0a402 Mon Sep 17 00:00:00 2001 From: Jody McIntyre Date: Fri, 30 Sep 2005 11:59:04 -0700 Subject: [PATCH 299/352] [PATCH] MAINTAINERS: sbp2 driver is not orphaned. Cc: Ben Collins Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- MAINTAINERS | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/MAINTAINERS b/MAINTAINERS index f3d9adec5aa8..abf7f7a17ae0 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1168,11 +1168,6 @@ L: linux1394-devel@lists.sourceforge.net W: http://www.linux1394.org/ S: Orphan -IEEE 1394 SBP2 -L: linux1394-devel@lists.sourceforge.net -W: http://www.linux1394.org/ -S: Orphan - IEEE 1394 SUBSYSTEM P: Ben Collins M: bcollins@debian.org @@ -1207,6 +1202,15 @@ L: linux1394-devel@lists.sourceforge.net W: http://www.linux1394.org/ S: Maintained +IEEE 1394 SBP2 +P: Ben Collins +M: bcollins@debian.org +P: Stefan Richter +M: stefanr@s5r6.in-berlin.de +L: linux1394-devel@lists.sourceforge.net +W: http://www.linux1394.org/ +S: Maintained + IMS TWINTURBO FRAMEBUFFER DRIVER P: Paul Mundt M: lethal@chaoticdreams.org From abd559b1052e28d8b9c28aabde241f18fa89090b Mon Sep 17 00:00:00 2001 From: Jody McIntyre Date: Fri, 30 Sep 2005 11:59:06 -0700 Subject: [PATCH 300/352] [PATCH] sbp2: fix deadlocks and delays on device removal/rmmod Fixes for deadlocks of the ieee1394 and scsi subsystems and long delays in futile error recovery attempts when SBP-2 devices are removed or drivers are unloaded. - Complete commands quickly with DID_NO_CONNECT if the 1394 node is gone or if the 1394 low-level driver was unloaded. - Skip unnecessary work in the eh_abort_handler and eh_device_reset_handler if the node or 1394 low-level driver is gone. - Let scsi's high-level shut down gracefully when sbp2 is being unloaded or detached from the 1394 unit. A call to scsi_remove_device is added for this purpose, which requires us to store a scsi_device pointer. - scsi_device pointer is obtained from slave_alloc hook and cleared by slave_destroy. This avoids usage of the pointer after the scsi device was deleted e.g. by the user via scsi_mod's sysfs interface. Signed-off-by: Stefan Richter Signed-off-by: Jody McIntyre Cc: Ben Collins Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/ieee1394/sbp2.c | 96 +++++++++++++++++++++++++---------------- 1 file changed, 58 insertions(+), 38 deletions(-) diff --git a/drivers/ieee1394/sbp2.c b/drivers/ieee1394/sbp2.c index de88218ef7cc..5d86b03979ec 100644 --- a/drivers/ieee1394/sbp2.c +++ b/drivers/ieee1394/sbp2.c @@ -596,6 +596,14 @@ static void sbp2util_mark_command_completed(struct scsi_id_instance_data *scsi_i spin_unlock_irqrestore(&scsi_id->sbp2_command_orb_lock, flags); } +/* + * Is scsi_id valid? Is the 1394 node still present? + */ +static inline int sbp2util_node_is_available(struct scsi_id_instance_data *scsi_id) +{ + return scsi_id && scsi_id->ne && !scsi_id->ne->in_limbo; +} + /********************************************* @@ -631,11 +639,23 @@ static int sbp2_remove(struct device *dev) { struct unit_directory *ud; struct scsi_id_instance_data *scsi_id; + struct scsi_device *sdev; SBP2_DEBUG("sbp2_remove"); ud = container_of(dev, struct unit_directory, device); scsi_id = ud->device.driver_data; + if (!scsi_id) + return 0; + + /* Trigger shutdown functions in scsi's highlevel. */ + if (scsi_id->scsi_host) + scsi_unblock_requests(scsi_id->scsi_host); + sdev = scsi_id->sdev; + if (sdev) { + scsi_id->sdev = NULL; + scsi_remove_device(sdev); + } sbp2_logout_device(scsi_id); sbp2_remove_device(scsi_id); @@ -2473,37 +2493,26 @@ static int sbp2scsi_queuecommand(struct scsi_cmnd *SCpnt, struct scsi_id_instance_data *scsi_id = (struct scsi_id_instance_data *)SCpnt->device->host->hostdata[0]; struct sbp2scsi_host_info *hi; + int result = DID_NO_CONNECT << 16; SBP2_DEBUG("sbp2scsi_queuecommand"); - /* - * If scsi_id is null, it means there is no device in this slot, - * so we should return selection timeout. - */ - if (!scsi_id) { - SCpnt->result = DID_NO_CONNECT << 16; - done (SCpnt); - return 0; - } + if (!sbp2util_node_is_available(scsi_id)) + goto done; hi = scsi_id->hi; if (!hi) { SBP2_ERR("sbp2scsi_host_info is NULL - this is bad!"); - SCpnt->result = DID_NO_CONNECT << 16; - done (SCpnt); - return(0); + goto done; } /* * Until we handle multiple luns, just return selection time-out * to any IO directed at non-zero LUNs */ - if (SCpnt->device->lun) { - SCpnt->result = DID_NO_CONNECT << 16; - done (SCpnt); - return(0); - } + if (SCpnt->device->lun) + goto done; /* * Check for request sense command, and handle it here @@ -2514,7 +2523,7 @@ static int sbp2scsi_queuecommand(struct scsi_cmnd *SCpnt, memcpy(SCpnt->request_buffer, SCpnt->sense_buffer, SCpnt->request_bufflen); memset(SCpnt->sense_buffer, 0, sizeof(SCpnt->sense_buffer)); sbp2scsi_complete_command(scsi_id, SBP2_SCSI_STATUS_GOOD, SCpnt, done); - return(0); + return 0; } /* @@ -2522,9 +2531,8 @@ static int sbp2scsi_queuecommand(struct scsi_cmnd *SCpnt, */ if (!hpsb_node_entry_valid(scsi_id->ne)) { SBP2_ERR("Bus reset in progress - rejecting command"); - SCpnt->result = DID_BUS_BUSY << 16; - done (SCpnt); - return(0); + result = DID_BUS_BUSY << 16; + goto done; } /* @@ -2535,8 +2543,12 @@ static int sbp2scsi_queuecommand(struct scsi_cmnd *SCpnt, sbp2scsi_complete_command(scsi_id, SBP2_SCSI_STATUS_SELECTION_TIMEOUT, SCpnt, done); } + return 0; - return(0); +done: + SCpnt->result = result; + done(SCpnt); + return 0; } /* @@ -2683,14 +2695,27 @@ static void sbp2scsi_complete_command(struct scsi_id_instance_data *scsi_id, } -static int sbp2scsi_slave_configure (struct scsi_device *sdev) +static int sbp2scsi_slave_alloc(struct scsi_device *sdev) +{ + ((struct scsi_id_instance_data *)sdev->host->hostdata[0])->sdev = sdev; + return 0; +} + + +static int sbp2scsi_slave_configure(struct scsi_device *sdev) { blk_queue_dma_alignment(sdev->request_queue, (512 - 1)); - return 0; } +static void sbp2scsi_slave_destroy(struct scsi_device *sdev) +{ + ((struct scsi_id_instance_data *)sdev->host->hostdata[0])->sdev = NULL; + return; +} + + /* * Called by scsi stack when something has really gone wrong. Usually * called when a command has timed-out for some reason. @@ -2705,7 +2730,7 @@ static int sbp2scsi_abort(struct scsi_cmnd *SCpnt) SBP2_ERR("aborting sbp2 command"); scsi_print_command(SCpnt); - if (scsi_id) { + if (sbp2util_node_is_available(scsi_id)) { /* * Right now, just return any matching command structures @@ -2742,31 +2767,24 @@ static int sbp2scsi_abort(struct scsi_cmnd *SCpnt) /* * Called by scsi stack when something has really gone wrong. */ -static int __sbp2scsi_reset(struct scsi_cmnd *SCpnt) +static int sbp2scsi_reset(struct scsi_cmnd *SCpnt) { struct scsi_id_instance_data *scsi_id = (struct scsi_id_instance_data *)SCpnt->device->host->hostdata[0]; + unsigned long flags; SBP2_ERR("reset requested"); - if (scsi_id) { + spin_lock_irqsave(SCpnt->device->host->host_lock, flags); + + if (sbp2util_node_is_available(scsi_id)) { SBP2_ERR("Generating sbp2 fetch agent reset"); sbp2_agent_reset(scsi_id, 0); } - return(SUCCESS); -} - -static int sbp2scsi_reset(struct scsi_cmnd *SCpnt) -{ - unsigned long flags; - int rc; - - spin_lock_irqsave(SCpnt->device->host->host_lock, flags); - rc = __sbp2scsi_reset(SCpnt); spin_unlock_irqrestore(SCpnt->device->host->host_lock, flags); - return rc; + return SUCCESS; } static const char *sbp2scsi_info (struct Scsi_Host *host) @@ -2817,7 +2835,9 @@ static struct scsi_host_template scsi_driver_template = { .eh_device_reset_handler = sbp2scsi_reset, .eh_bus_reset_handler = sbp2scsi_reset, .eh_host_reset_handler = sbp2scsi_reset, + .slave_alloc = sbp2scsi_slave_alloc, .slave_configure = sbp2scsi_slave_configure, + .slave_destroy = sbp2scsi_slave_destroy, .this_id = -1, .sg_tablesize = SG_ALL, .use_clustering = ENABLE_CLUSTERING, From 2bab359a5009f330b12a4ed09a57d3d2ac6b3483 Mon Sep 17 00:00:00 2001 From: Jody McIntyre Date: Fri, 30 Sep 2005 11:59:07 -0700 Subject: [PATCH 301/352] [PATCH] sbp2: default to serialize_io=1 Set serialize_io=1 by default. This is safer and required by seemingly more and more hardware. It causes little or no performance loss for S400 devices. Performance of S800 1394b devices may drop by 25...30%. Therefore make the parameter's description and dmesg message clearer about performance impact. Update description of the max_speed parameter too. IEEE1394_SPEED_MAX is currently S800. Signed-off-by: Stefan Richter Signed-off-by: Jody McIntyre Cc: Ben Collins Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/ieee1394/sbp2.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/ieee1394/sbp2.c b/drivers/ieee1394/sbp2.c index 5d86b03979ec..12cec7c4a342 100644 --- a/drivers/ieee1394/sbp2.c +++ b/drivers/ieee1394/sbp2.c @@ -97,16 +97,18 @@ static char version[] __devinitdata = */ static int max_speed = IEEE1394_SPEED_MAX; module_param(max_speed, int, 0644); -MODULE_PARM_DESC(max_speed, "Force max speed (3 = 800mb, 2 = 400mb default, 1 = 200mb, 0 = 100mb)"); +MODULE_PARM_DESC(max_speed, "Force max speed (3 = 800mb, 2 = 400mb, 1 = 200mb, 0 = 100mb)"); /* * Set serialize_io to 1 if you'd like only one scsi command sent * down to us at a time (debugging). This might be necessary for very * badly behaved sbp2 devices. + * + * TODO: Make this configurable per device. */ -static int serialize_io; +static int serialize_io = 1; module_param(serialize_io, int, 0444); -MODULE_PARM_DESC(serialize_io, "Serialize all I/O coming down from the scsi drivers (default = 0)"); +MODULE_PARM_DESC(serialize_io, "Serialize I/O coming from scsi drivers (default = 1, faster = 0)"); /* * Bump up max_sectors if you'd like to support very large sized @@ -2857,7 +2859,8 @@ static int sbp2_module_init(void) /* Module load debug option to force one command at a time (serializing I/O) */ if (serialize_io) { - SBP2_ERR("Driver forced to serialize I/O (serialize_io = 1)"); + SBP2_INFO("Driver forced to serialize I/O (serialize_io=1)"); + SBP2_INFO("Try serialize_io=0 for better performance"); scsi_driver_template.can_queue = 1; scsi_driver_template.cmd_per_lun = 1; } From 328699bf0ff4d35a9932ce279441f955e78a890e Mon Sep 17 00:00:00 2001 From: Jody McIntyre Date: Fri, 30 Sep 2005 11:59:08 -0700 Subject: [PATCH 302/352] [PATCH] ieee1394: reorder activities after bus reset (fixes device detection) Units were not detected if the local IRM performed a bus reset. ("The root node is not cycle master capable; selecting a new root node and resetting...", often seen with iPods and other SBP-2 devices). Rearrange the order of IRM duties and node scanning. TODO: Audit the ROM caching and parsing code for underlying issues. Signed-off-by: Stefan Richter Signed-off-by: Jody McIntyre Cc: Ben Collins Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/ieee1394/nodemgr.c | 19 +++++++++---------- 1 file changed, 9 insertions(+), 10 deletions(-) diff --git a/drivers/ieee1394/nodemgr.c b/drivers/ieee1394/nodemgr.c index b23322523ef5..743f13c81adb 100644 --- a/drivers/ieee1394/nodemgr.c +++ b/drivers/ieee1394/nodemgr.c @@ -1438,9 +1438,13 @@ static int nodemgr_do_irm_duties(struct hpsb_host *host, int cycles) if (host->busmgr_id == 0xffff && host->node_count > 1) { u16 root_node = host->node_count - 1; - struct node_entry *ne = find_entry_by_nodeid(host, root_node | LOCAL_BUS); - if (ne && ne->busopt.cmc) + /* get cycle master capability flag from root node */ + if (host->is_cycmst || + (!hpsb_read(host, LOCAL_BUS | root_node, get_hpsb_generation(host), + (CSR_REGISTER_BASE + CSR_CONFIG_ROM + 2 * sizeof(quadlet_t)), + &bc, sizeof(quadlet_t)) && + be32_to_cpu(bc) & 1 << CSR_CMC_SHIFT)) hpsb_send_phy_config(host, root_node, -1); else { HPSB_DEBUG("The root node is not cycle master capable; " @@ -1557,24 +1561,19 @@ static int nodemgr_host_thread(void *__hi) } } - if (!nodemgr_check_irm_capability(host, reset_cycles)) { + if (!nodemgr_check_irm_capability(host, reset_cycles) || + !nodemgr_do_irm_duties(host, reset_cycles)) { reset_cycles++; up(&nodemgr_serialize); continue; } + reset_cycles = 0; /* Scan our nodes to get the bus options and create node * entries. This does not do the sysfs stuff, since that * would trigger hotplug callbacks and such, which is a * bad idea at this point. */ nodemgr_node_scan(hi, generation); - if (!nodemgr_do_irm_duties(host, reset_cycles)) { - reset_cycles++; - up(&nodemgr_serialize); - continue; - } - - reset_cycles = 0; /* This actually does the full probe, with sysfs * registration. */ From e31a127c2f99b9cb9abc99a1ec22b75194890800 Mon Sep 17 00:00:00 2001 From: Jody McIntyre Date: Fri, 30 Sep 2005 11:59:09 -0700 Subject: [PATCH 303/352] [PATCH] ieee1394: skip unnecessary pause when scanning config ROMs Skip a superfluous pause that occured when the config ROM of a node was scanned unsuccessfully. This also occurs if a node without link wrongly enables its "link active" self ID flag. A GWCTech 6-port hub does this. Signed-off-by: Stefan Richter Signed-off-by: Jody McIntyre Cc: Ben Collins Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/ieee1394/nodemgr.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/ieee1394/nodemgr.c b/drivers/ieee1394/nodemgr.c index 743f13c81adb..347ece6b583c 100644 --- a/drivers/ieee1394/nodemgr.c +++ b/drivers/ieee1394/nodemgr.c @@ -64,10 +64,10 @@ static int nodemgr_bus_read(struct csr1212_csr *csr, u64 addr, u16 length, struct nodemgr_csr_info *ci = (struct nodemgr_csr_info*)__ci; int i, ret = 0; - for (i = 0; i < 3; i++) { + for (i = 1; ; i++) { ret = hpsb_read(ci->host, ci->nodeid, ci->generation, addr, buffer, length); - if (!ret) + if (!ret || i == 3) break; if (msleep_interruptible(334)) From db2fd664f8ac3664dfd94d624c0a871bee937bd5 Mon Sep 17 00:00:00 2001 From: Jody McIntyre Date: Fri, 30 Sep 2005 11:59:09 -0700 Subject: [PATCH 304/352] [PATCH] ieee1394: fix for debug output Fix debug code so it prints the correct speed (was defaulting to 100, so anything > 400 showed only 100). Signed-off-by: Stefan Richter Signed-off-by: Ben Collins Signed-off-by: Jody McIntyre Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/ieee1394/ieee1394_core.c | 32 ++++++++++---------------------- 1 file changed, 10 insertions(+), 22 deletions(-) diff --git a/drivers/ieee1394/ieee1394_core.c b/drivers/ieee1394/ieee1394_core.c index d633770fac8e..32a1e016c85e 100644 --- a/drivers/ieee1394/ieee1394_core.c +++ b/drivers/ieee1394/ieee1394_core.c @@ -70,7 +70,7 @@ const char *hpsb_speedto_str[] = { "S100", "S200", "S400", "S800", "S1600", "S32 struct class *hpsb_protocol_class; #ifdef CONFIG_IEEE1394_VERBOSEDEBUG -static void dump_packet(const char *text, quadlet_t *data, int size) +static void dump_packet(const char *text, quadlet_t *data, int size, int speed) { int i; @@ -78,12 +78,15 @@ static void dump_packet(const char *text, quadlet_t *data, int size) size = (size > 4 ? 4 : size); printk(KERN_DEBUG "ieee1394: %s", text); + if (speed > -1 && speed < 6) + printk(" at %s", hpsb_speedto_str[speed]); + printk(":"); for (i = 0; i < size; i++) printk(" %08x", data[i]); printk("\n"); } #else -#define dump_packet(x,y,z) +#define dump_packet(a,b,c,d) #endif static void abort_requests(struct hpsb_host *host); @@ -544,8 +547,7 @@ int hpsb_send_packet(struct hpsb_packet *packet) if (packet->data_size) memcpy(((u8*)data) + packet->header_size, packet->data, packet->data_size); - dump_packet("send packet local:", packet->header, - packet->header_size); + dump_packet("send packet local", packet->header, packet->header_size, -1); hpsb_packet_sent(host, packet, packet->expect_response ? ACK_PENDING : ACK_COMPLETE); hpsb_packet_received(host, data, size, 0); @@ -561,21 +563,7 @@ int hpsb_send_packet(struct hpsb_packet *packet) + NODEID_TO_NODE(packet->node_id)]; } -#ifdef CONFIG_IEEE1394_VERBOSEDEBUG - switch (packet->speed_code) { - case 2: - dump_packet("send packet 400:", packet->header, - packet->header_size); - break; - case 1: - dump_packet("send packet 200:", packet->header, - packet->header_size); - break; - default: - dump_packet("send packet 100:", packet->header, - packet->header_size); - } -#endif + dump_packet("send packet", packet->header, packet->header_size, packet->speed_code); return host->driver->transmit_packet(host, packet); } @@ -636,7 +624,7 @@ static void handle_packet_response(struct hpsb_host *host, int tcode, if (packet == NULL) { HPSB_DEBUG("unsolicited response packet received - no tlabel match"); - dump_packet("contents:", data, 16); + dump_packet("contents", data, 16, -1); spin_unlock_irqrestore(&host->pending_packet_queue.lock, flags); return; } @@ -677,7 +665,7 @@ static void handle_packet_response(struct hpsb_host *host, int tcode, if (!tcode_match) { spin_unlock_irqrestore(&host->pending_packet_queue.lock, flags); HPSB_INFO("unsolicited response packet received - tcode mismatch"); - dump_packet("contents:", data, 16); + dump_packet("contents", data, 16, -1); return; } @@ -914,7 +902,7 @@ void hpsb_packet_received(struct hpsb_host *host, quadlet_t *data, size_t size, return; } - dump_packet("received packet:", data, size); + dump_packet("received packet", data, size, -1); tcode = (data[0] >> 4) & 0xf; From 63bea35036540c0e8a309aef9bc37a9acfb520ae Mon Sep 17 00:00:00 2001 From: Jody McIntyre Date: Fri, 30 Sep 2005 11:59:10 -0700 Subject: [PATCH 305/352] [PATCH] ieee1394: use time_before() Use of time_before() macro, defined at linux/jiffies.h, which deal with wrapping correctly and are nicer to read. Signed-off-by: Marcelo Feitoza Parisi Signed-off-by: Domen Puncer Signed-off-by: Ben Collins Signed-off-by: Stefan Richter Signed-off-by: Jody McIntyre Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/ieee1394/hosts.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/ieee1394/hosts.c b/drivers/ieee1394/hosts.c index c502c6e9c440..aeeaeb670d03 100644 --- a/drivers/ieee1394/hosts.c +++ b/drivers/ieee1394/hosts.c @@ -18,6 +18,7 @@ #include #include #include +#include #include "csr1212.h" #include "ieee1394.h" @@ -217,7 +218,7 @@ int hpsb_update_config_rom_image(struct hpsb_host *host) /* IEEE 1394a-2000 prohibits using the same generation number * twice in a 60 second period. */ - if (jiffies - host->csr.gen_timestamp[next_gen] < 60 * HZ) + if (time_before(jiffies, host->csr.gen_timestamp[next_gen] + 60 * HZ)) /* Wait 60 seconds from the last time this generation number was * used. */ reset_delay = (60 * HZ) + host->csr.gen_timestamp[next_gen] - jiffies; From 3256cc13983da2cfe45c17788e4f5b379695404e Mon Sep 17 00:00:00 2001 From: Jody McIntyre Date: Fri, 30 Sep 2005 11:59:16 -0700 Subject: [PATCH 306/352] [PATCH] ieee1394: trivial edits of a few comments trivial edits of a few comments Signed-off-by: Stefan Richter Signed-off-by: Ben Collins Signed-off-by: Jody McIntyre Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/ieee1394/hosts.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/ieee1394/hosts.h b/drivers/ieee1394/hosts.h index 739e76840d51..38f42112dff0 100644 --- a/drivers/ieee1394/hosts.h +++ b/drivers/ieee1394/hosts.h @@ -135,17 +135,17 @@ enum isoctl_cmd { enum reset_types { /* 166 microsecond reset -- only type of reset available on - non-1394a capable IEEE 1394 controllers */ + non-1394a capable controllers */ LONG_RESET, /* Short (arbitrated) reset -- only available on 1394a capable - IEEE 1394 capable controllers */ + controllers */ SHORT_RESET, - /* Variants, that set force_root before issueing the bus reset */ + /* Variants that set force_root before issueing the bus reset */ LONG_RESET_FORCE_ROOT, SHORT_RESET_FORCE_ROOT, - /* Variants, that clear force_root before issueing the bus reset */ + /* Variants that clear force_root before issueing the bus reset */ LONG_RESET_NO_FORCE_ROOT, SHORT_RESET_NO_FORCE_ROOT }; From 998150c3d3cf049da7596875f6fdc253db089a9a Mon Sep 17 00:00:00 2001 From: Jody McIntyre Date: Fri, 30 Sep 2005 11:59:17 -0700 Subject: [PATCH 307/352] [PATCH] ieee1394: remove superfluous include in csr1212 Remove superfluous include. Signed-off-by: Jody McIntyre Signed-off-by: Stefan Richter Signed-off-by: Jody McIntyre Cc: Ben Collins Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/ieee1394/csr1212.h | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/ieee1394/csr1212.h b/drivers/ieee1394/csr1212.h index e6734263a1d3..28c5f4b726e2 100644 --- a/drivers/ieee1394/csr1212.h +++ b/drivers/ieee1394/csr1212.h @@ -37,7 +37,6 @@ #include #include #include -#include #include #include From 3ae3d0d4ae4131563d9eb55859f4fa5bd39059bd Mon Sep 17 00:00:00 2001 From: Jody McIntyre Date: Fri, 30 Sep 2005 11:59:18 -0700 Subject: [PATCH 308/352] [PATCH] eth1394: workaround limitation in rawiso routines Work around limitation in rawiso routines. Required with 1394b cards on architectures where PAGE_SIZE is 4096. Based on a previous patch by Ben Collins. Signed-off-by: Jody McIntyre Cc: Ben Collins Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/ieee1394/eth1394.c | 12 +++++------- drivers/ieee1394/eth1394.h | 6 ++++++ 2 files changed, 11 insertions(+), 7 deletions(-) diff --git a/drivers/ieee1394/eth1394.c b/drivers/ieee1394/eth1394.c index cd53c174ced1..4802bbbb6dc9 100644 --- a/drivers/ieee1394/eth1394.c +++ b/drivers/ieee1394/eth1394.c @@ -89,7 +89,7 @@ #define TRACE() printk(KERN_ERR "%s:%s[%d] ---- TRACE\n", driver_name, __FUNCTION__, __LINE__) static char version[] __devinitdata = - "$Rev: 1264 $ Ben Collins "; + "$Rev: 1312 $ Ben Collins "; struct fragment_info { struct list_head list; @@ -221,9 +221,7 @@ static int ether1394_open (struct net_device *dev) if (priv->bc_state == ETHER1394_BC_ERROR) { /* we'll try again */ priv->iso = hpsb_iso_recv_init(priv->host, - ETHER1394_GASP_BUFFERS * 2 * - (1 << (priv->host->csr.max_rec + - 1)), + ETHER1394_ISO_BUF_SIZE, ETHER1394_GASP_BUFFERS, priv->broadcast_channel, HPSB_ISO_DMA_PACKET_PER_BUFFER, @@ -635,8 +633,8 @@ static void ether1394_add_host (struct hpsb_host *host) * be checked when the eth device is opened. */ priv->broadcast_channel = host->csr.broadcast_channel & 0x3f; - priv->iso = hpsb_iso_recv_init(host, (ETHER1394_GASP_BUFFERS * 2 * - (1 << (host->csr.max_rec + 1))), + priv->iso = hpsb_iso_recv_init(host, + ETHER1394_ISO_BUF_SIZE, ETHER1394_GASP_BUFFERS, priv->broadcast_channel, HPSB_ISO_DMA_PACKET_PER_BUFFER, @@ -1770,7 +1768,7 @@ fail: static void ether1394_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) { strcpy (info->driver, driver_name); - strcpy (info->version, "$Rev: 1264 $"); + strcpy (info->version, "$Rev: 1312 $"); /* FIXME XXX provide sane businfo */ strcpy (info->bus_info, "ieee1394"); } diff --git a/drivers/ieee1394/eth1394.h b/drivers/ieee1394/eth1394.h index ed8f1c4b7fd8..a77213cfc483 100644 --- a/drivers/ieee1394/eth1394.h +++ b/drivers/ieee1394/eth1394.h @@ -44,6 +44,12 @@ #define ETHER1394_GASP_BUFFERS 16 +/* rawiso buffer size - due to a limitation in rawiso, we must limit each + * GASP buffer to be less than PAGE_SIZE. */ +#define ETHER1394_ISO_BUF_SIZE ETHER1394_GASP_BUFFERS * \ + min((unsigned int)PAGE_SIZE, \ + 2 * (1U << (priv->host->csr.max_rec + 1))) + /* Node set == 64 */ #define NODE_SET (ALL_NODES + 1) From f31c9cf3bd6bc1f3e29807ba59d0c7d711385a06 Mon Sep 17 00:00:00 2001 From: Jody McIntyre Date: Fri, 30 Sep 2005 11:59:18 -0700 Subject: [PATCH 309/352] [PATCH] ieee1394: delete legacy module aliases amdtp, dv1394, raw1394, video1394: Delete legacy module aliases. The macros did not work and the aliases are not needed nowadays. Signed-off-by: Stefan Richter Signed-off-by: Ben Collins Signed-off-by: Jody McIntyre Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/ieee1394/amdtp.c | 1 - drivers/ieee1394/dv1394.c | 1 - drivers/ieee1394/raw1394.c | 1 - drivers/ieee1394/video1394.c | 1 - 4 files changed, 4 deletions(-) diff --git a/drivers/ieee1394/amdtp.c b/drivers/ieee1394/amdtp.c index 84ae027b021a..e8e28569a668 100644 --- a/drivers/ieee1394/amdtp.c +++ b/drivers/ieee1394/amdtp.c @@ -1297,4 +1297,3 @@ static void __exit amdtp_exit_module (void) module_init(amdtp_init_module); module_exit(amdtp_exit_module); -MODULE_ALIAS_CHARDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_AMDTP * 16); diff --git a/drivers/ieee1394/dv1394.c b/drivers/ieee1394/dv1394.c index 4538b0235ca3..e34730c7a874 100644 --- a/drivers/ieee1394/dv1394.c +++ b/drivers/ieee1394/dv1394.c @@ -2660,4 +2660,3 @@ static int __init dv1394_init_module(void) module_init(dv1394_init_module); module_exit(dv1394_exit_module); -MODULE_ALIAS_CHARDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_DV1394 * 16); diff --git a/drivers/ieee1394/raw1394.c b/drivers/ieee1394/raw1394.c index b4fa14793fe5..5fe4f2ba0979 100644 --- a/drivers/ieee1394/raw1394.c +++ b/drivers/ieee1394/raw1394.c @@ -2958,4 +2958,3 @@ static void __exit cleanup_raw1394(void) module_init(init_raw1394); module_exit(cleanup_raw1394); MODULE_LICENSE("GPL"); -MODULE_ALIAS_CHARDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_RAW1394 * 16); diff --git a/drivers/ieee1394/video1394.c b/drivers/ieee1394/video1394.c index 9d6facf2f78f..11be9c9c82a8 100644 --- a/drivers/ieee1394/video1394.c +++ b/drivers/ieee1394/video1394.c @@ -1571,4 +1571,3 @@ static int __init video1394_init_module (void) module_init(video1394_init_module); module_exit(video1394_exit_module); -MODULE_ALIAS_CHARDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_VIDEO1394 * 16); From 32e7a04faa29f50f65e06d43a9029bb607743e76 Mon Sep 17 00:00:00 2001 From: Jody McIntyre Date: Fri, 30 Sep 2005 11:59:19 -0700 Subject: [PATCH 310/352] [PATCH] ohci1394: less noise in dmesg less noise in dmesg Signed-off-by: Ben Collins Signed-off-by: Stefan Richter Signed-off-by: Jody McIntyre 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 27018c8efc24..6a6acbd80af4 100644 --- a/drivers/ieee1394/ohci1394.c +++ b/drivers/ieee1394/ohci1394.c @@ -162,7 +162,7 @@ printk(level "%s: " fmt "\n" , OHCI1394_DRIVER_NAME , ## args) printk(level "%s: fw-host%d: " fmt "\n" , OHCI1394_DRIVER_NAME, ohci->host->id , ## args) static char version[] __devinitdata = - "$Rev: 1299 $ Ben Collins "; + "$Rev: 1313 $ Ben Collins "; /* Module Parameters */ static int phys_dma = 1; @@ -1084,7 +1084,7 @@ static int ohci_devctl(struct hpsb_host *host, enum devctl_cmd cmd, int arg) initialize_dma_rcv_ctx(&ohci->ir_legacy_context, 1); if (printk_ratelimit()) - PRINT(KERN_ERR, "IR legacy activated"); + DBGMSG("IR legacy activated"); } spin_lock_irqsave(&ohci->IR_channel_lock, flags); From 2dd960d66bc12b6b206e63104636514e5da0ddb7 Mon Sep 17 00:00:00 2001 From: "Zhang, Yanmin" Date: Fri, 30 Sep 2005 11:59:20 -0700 Subject: [PATCH 311/352] [PATCH] utilization of kprobe_mutex is incorrect on x86_64 The up()/down() orders are incorrect in arch/x86_64/kprobes.c file. kprobe_mutext is used to protect the free kprobe instruction slot list. arch_prepare_kprobe applies for a slot from the free list, and arch_remove_kprobe returns a slot to the free list. The incorrect up()/down() orders to operate on kprobe_mutex fail to protect the free list. If 2 threads try to get/return kprobe instruction slot at the same time, the free slot list might be broken, or a free slot might be applied by 2 threads. Signed-off-by: Zhang Yanmin Cc: Andi Kleen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/x86_64/kernel/kprobes.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/x86_64/kernel/kprobes.c b/arch/x86_64/kernel/kprobes.c index df08c43276a0..76a28b007be9 100644 --- a/arch/x86_64/kernel/kprobes.c +++ b/arch/x86_64/kernel/kprobes.c @@ -77,9 +77,9 @@ static inline int is_IF_modifier(kprobe_opcode_t *insn) int __kprobes arch_prepare_kprobe(struct kprobe *p) { /* insn: must be on special executable page on x86_64. */ - up(&kprobe_mutex); - p->ainsn.insn = get_insn_slot(); down(&kprobe_mutex); + p->ainsn.insn = get_insn_slot(); + up(&kprobe_mutex); if (!p->ainsn.insn) { return -ENOMEM; } @@ -231,9 +231,9 @@ void __kprobes arch_disarm_kprobe(struct kprobe *p) void __kprobes arch_remove_kprobe(struct kprobe *p) { - up(&kprobe_mutex); - free_insn_slot(p->ainsn.insn); down(&kprobe_mutex); + free_insn_slot(p->ainsn.insn); + up(&kprobe_mutex); } static inline void save_previous_kprobe(void) From e6a045a5b89037ae87c8c1bc84403f1d498e52a1 Mon Sep 17 00:00:00 2001 From: Ravikiran G Thirumalai Date: Fri, 30 Sep 2005 11:59:21 -0700 Subject: [PATCH 312/352] [PATCH] x86_64: fix the BP node_to_cpumask Fix the BP node_to_cpumask. 2.6.14-rc* broke the boot cpu bit as the cpu_to_node(0) is now not setup early enough for numa_init_array. cpu_to_node[] is setup much later at srat_detect_node on acpi srat based em64t machines. This seems like a problem on amd machines too, Tested on em64t though. /sys/devices/system/node/node0/cpumap shows up sanely after this patch. Signed off by: Ravikiran Thirumalai Signed-off-by: Shai Fultheim Cc: Andi Kleen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/x86_64/mm/numa.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/arch/x86_64/mm/numa.c b/arch/x86_64/mm/numa.c index 80a49d9bd8a7..68ad75853510 100644 --- a/arch/x86_64/mm/numa.c +++ b/arch/x86_64/mm/numa.c @@ -178,7 +178,6 @@ void __init numa_init_array(void) rr++; } - set_bit(0, &node_to_cpumask[cpu_to_node(0)]); } #ifdef CONFIG_NUMA_EMU @@ -266,9 +265,7 @@ void __init numa_initmem_init(unsigned long start_pfn, unsigned long end_pfn) __cpuinit void numa_add_cpu(int cpu) { - /* BP is initialized elsewhere */ - if (cpu) - set_bit(cpu, &node_to_cpumask[cpu_to_node(cpu)]); + set_bit(cpu, &node_to_cpumask[cpu_to_node(cpu)]); } unsigned long __init numa_free_all_bootmem(void) From 85cc5135ace4c8b75d7b4e1ea9fe15a7fcbd1516 Mon Sep 17 00:00:00 2001 From: Ravikiran G Thirumalai Date: Fri, 30 Sep 2005 11:59:22 -0700 Subject: [PATCH 313/352] [PATCH] x86_64 early numa init fix The tests Alok carried out on Petr's box confirmed that cpu_to_node[BP] is not setup early enough by numa_init_array due to the x86_64 changes in 2.6.14-rc*, and unfortunately set wrongly by the work around code in numa_init_array(). cpu_to_node[0] gets set with 1 early and later gets set properly to 0 during identify_cpu() when all cpus are brought up, but confusing the numa slab in the process. Here is a quick fix for this. The right fix obviously is to have cpu_to_node[bsp] setup early for numa_init_array(). The following patch will fix the problem now, and the code can stay on even when cpu_to_node{BP] gets fixed early correctly. Thanks to Petr for access to his box. Signed off by: Ravikiran Thirumalai Signed-off-by: Alok N Kataria Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/x86_64/mm/numa.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/arch/x86_64/mm/numa.c b/arch/x86_64/mm/numa.c index 68ad75853510..214803821001 100644 --- a/arch/x86_64/mm/numa.c +++ b/arch/x86_64/mm/numa.c @@ -167,15 +167,14 @@ void __init numa_init_array(void) mapping. To avoid this fill in the mapping for all possible CPUs, as the number of CPUs is not known yet. We round robin the existing nodes. */ - rr = 0; + rr = first_node(node_online_map); for (i = 0; i < NR_CPUS; i++) { if (cpu_to_node[i] != NUMA_NO_NODE) continue; + cpu_to_node[i] = rr; rr = next_node(rr, node_online_map); if (rr == MAX_NUMNODES) rr = first_node(node_online_map); - cpu_to_node[i] = rr; - rr++; } } From 1c9426e8a59461688bb451e006456987b198e4c0 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 30 Sep 2005 14:17:35 -0700 Subject: [PATCH 314/352] Linux v2.6.14-rc3 --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index 8cf6becf68dc..fdb96bc85080 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 2 PATCHLEVEL = 6 SUBLEVEL = 14 -EXTRAVERSION =-rc2 +EXTRAVERSION =-rc3 NAME=Affluent Albatross # *DOCUMENTATION* From a9487e48a34d7ad606f40a76080475a522a27cff Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Sat, 1 Oct 2005 09:21:25 +1000 Subject: [PATCH 316/352] [PATCH] pmac: fix cpufreq for old tipb 550Mhz The old 550Mhz titanium powerbook can switch to a lower frequency (500Mhz). A user has been repeately reporting overtemp conditions on his machine at high speed so this simple patch adds support to PowerMac cpufreq for this machine. The difference in frequency isn't big but seem enough to fix that user's problems. The patch has been around for some time now and doesn't seem to cause any problem, so I suppose it could go in now. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Alain RICHARD Signed-off-by: Linus Torvalds --- arch/ppc/platforms/pmac_cpufreq.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/ppc/platforms/pmac_cpufreq.c b/arch/ppc/platforms/pmac_cpufreq.c index c0605244edda..d4bc5f67ec53 100644 --- a/arch/ppc/platforms/pmac_cpufreq.c +++ b/arch/ppc/platforms/pmac_cpufreq.c @@ -695,6 +695,13 @@ static int __init pmac_cpufreq_setup(void) set_speed_proc = pmu_set_cpu_speed; is_pmu_based = 1; } + /* Else check for TiPb 550 */ + else if (machine_is_compatible("PowerBook3,3") && cur_freq == 550000) { + hi_freq = cur_freq; + low_freq = 500000; + set_speed_proc = pmu_set_cpu_speed; + is_pmu_based = 1; + } /* Else check for TiPb 400 & 500 */ else if (machine_is_compatible("PowerBook3,2")) { /* We only know about the 400 MHz and the 500Mhz model From f0e837d9182d7903bde3ebafbd1d0d68c6d32d43 Mon Sep 17 00:00:00 2001 From: Francois Romieu Date: Fri, 30 Sep 2005 16:54:02 -0700 Subject: [PATCH 317/352] [PATCH] r8169: tone down the r8169 driver Tone down the r8169 driver As an alternative, people can use the boot time 'debug' option and/or use 'ethtool -s ethX msglvl xyz'. The different messages are listed at: http://www.zoreil.com/~romieu/r8169/doc/msglvl.txt Signed-off-by: Francois Romieu Cc: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/net/r8169.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c index f9223c1c5aa4..afb3f186b884 100644 --- a/drivers/net/r8169.c +++ b/drivers/net/r8169.c @@ -92,8 +92,7 @@ VERSION 2.2LK <2005/01/25> #endif /* RTL8169_DEBUG */ #define R8169_MSG_DEFAULT \ - (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK | NETIF_MSG_IFUP | \ - NETIF_MSG_IFDOWN) + (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN) #define TX_BUFFS_AVAIL(tp) \ (tp->dirty_tx + NUM_TX_DESC - tp->cur_tx - 1) From 702c96d55059b4a8e5b1eb112ee3b1804708a1bd Mon Sep 17 00:00:00 2001 From: Deepak Saxena Date: Fri, 30 Sep 2005 16:20:22 -0700 Subject: [PATCH 318/352] [PATCH] ARM: Fix IXP2000 serial port resource range. For real this time. Serial port only needs 32 bytes of resource space but we are currently asking for 64K. Signed-off-by: Deepak Saxena [ diff went missing first time due to corrupted patch ] Signed-off-by: Linus Torvalds --- arch/arm/mach-ixp2000/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-ixp2000/core.c b/arch/arm/mach-ixp2000/core.c index f34797a46a23..f4d7f1f6ef85 100644 --- a/arch/arm/mach-ixp2000/core.c +++ b/arch/arm/mach-ixp2000/core.c @@ -167,7 +167,7 @@ static struct plat_serial8250_port ixp2000_serial_port[] = { static struct resource ixp2000_uart_resource = { .start = IXP2000_UART_PHYS_BASE, - .end = IXP2000_UART_PHYS_BASE + 0xffff, + .end = IXP2000_UART_PHYS_BASE + 0x1f, .flags = IORESOURCE_MEM, }; From 2d8ab6ad6edf0e8709da9ad24e3f023503f76cee Mon Sep 17 00:00:00 2001 From: Ananth N Mavinakayanahalli Date: Sat, 1 Oct 2005 13:14:17 -0400 Subject: [PATCH 319/352] [PATCH] ppc64: fix up()/down() usage for kprobe_mutex The incorrect kprobe_mutex usage on x86_64 had percolated to ppc64 too. First noticed by Yanmin Zhang. Signed-off-by: Ananth N Mavinakayanahalli Signed-off-by: Linus Torvalds --- arch/ppc64/kernel/kprobes.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/ppc64/kernel/kprobes.c b/arch/ppc64/kernel/kprobes.c index 7e80d49c589a..9c6facc24f70 100644 --- a/arch/ppc64/kernel/kprobes.c +++ b/arch/ppc64/kernel/kprobes.c @@ -59,9 +59,9 @@ int __kprobes arch_prepare_kprobe(struct kprobe *p) /* insn must be on a special executable page on ppc64 */ if (!ret) { - up(&kprobe_mutex); - p->ainsn.insn = get_insn_slot(); down(&kprobe_mutex); + p->ainsn.insn = get_insn_slot(); + up(&kprobe_mutex); if (!p->ainsn.insn) ret = -ENOMEM; } @@ -90,9 +90,9 @@ void __kprobes arch_disarm_kprobe(struct kprobe *p) void __kprobes arch_remove_kprobe(struct kprobe *p) { - up(&kprobe_mutex); - free_insn_slot(p->ainsn.insn); down(&kprobe_mutex); + free_insn_slot(p->ainsn.insn); + up(&kprobe_mutex); } static inline void prepare_singlestep(struct kprobe *p, struct pt_regs *regs) From fd2e54b35bd70d11c160ded4834e2378e915356e Mon Sep 17 00:00:00 2001 From: Diego Calleja Date: Sat, 1 Oct 2005 17:00:48 +0200 Subject: [PATCH 320/352] [PATCH] trivial #if -> #ifdef Use '#ifdef' consistently on __KERNEL__. This was reported as bug #5340 (isn't easier to send a fix than report the bug?!) Signed-off-by: Diego Calleja Signed-off-by: Linus Torvalds --- include/linux/mod_devicetable.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h index 4ed2107bc020..2f0299a448f6 100644 --- a/include/linux/mod_devicetable.h +++ b/include/linux/mod_devicetable.h @@ -183,7 +183,7 @@ struct of_device_id char name[32]; char type[32]; char compatible[128]; -#if __KERNEL__ +#ifdef __KERNEL__ void *data; #else kernel_ulong_t data; From 14bf01bb0599c89fc7f426d20353b76e12555308 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 1 Oct 2005 11:04:18 -0700 Subject: [PATCH 321/352] Fix inequality comparison against "task->state" We should always use bitmask ops, rather than depend on some ordering of the different states. With the TASK_NONINTERACTIVE flag, the inequality doesn't really work. Oleg Nesterov argues (likely correctly) that this test is unnecessary in the first place. However, the minimal fix for now is to at least make it work in the presense of TASK_NONINTERACTIVE. Waiting for consensus from Roland & co on potential bigger cleanups. 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 ee6d8b8abef5..43077732619b 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -1203,7 +1203,7 @@ static int wait_task_stopped(task_t *p, int delayed_group_leader, int noreap, exit_code = p->exit_code; if (unlikely(!exit_code) || - unlikely(p->state > TASK_STOPPED)) + unlikely(p->state & TASK_TRACED)) goto bail_ref; return wait_noreap_copyout(p, pid, uid, why, (exit_code << 8) | 0x7f, From 9f4426dde2be352aabc326539eccc726cea2d98c Mon Sep 17 00:00:00 2001 From: Vincent Sanders Date: Sat, 1 Oct 2005 22:56:34 +0100 Subject: [PATCH 322/352] [ARM] 2944/1: GCC 4 mx1ads serial driver compile fix Patch from Vincent Sanders When building the mx1ads ARM platforms the serial driver fails to compile with GCC 4.01 due to extern/static ambiguity. Signed-off-by: Vincent Sanders Signed-off-by: Russell King --- drivers/serial/imx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/serial/imx.c b/drivers/serial/imx.c index 4c985e6b3784..4e1e80adaf11 100644 --- a/drivers/serial/imx.c +++ b/drivers/serial/imx.c @@ -860,7 +860,7 @@ imx_console_setup(struct console *co, char *options) return uart_set_options(&sport->port, co, baud, parity, bits, flow); } -extern struct uart_driver imx_reg; +static struct uart_driver imx_reg; static struct console imx_console = { .name = "ttySMX", .write = imx_console_write, From 31f919c3296a30427b18458b13c308513a62c3b9 Mon Sep 17 00:00:00 2001 From: Vincent Sanders Date: Sat, 1 Oct 2005 22:56:34 +0100 Subject: [PATCH 323/352] [ARM] 2945/1: ARM fortunet fails to build because of missing include Patch from Vincent Sanders When building the fortunet ARM platform it fails to compile because of missing include. Signed-off-by: Vincent Sanders Signed-off-by: Russell King --- arch/arm/mach-clps711x/fortunet.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/mach-clps711x/fortunet.c b/arch/arm/mach-clps711x/fortunet.c index f83a59761e02..3d88da0c287b 100644 --- a/arch/arm/mach-clps711x/fortunet.c +++ b/arch/arm/mach-clps711x/fortunet.c @@ -31,6 +31,8 @@ #include +#include + #include "common.h" struct meminfo memmap = { From 14bfd1ff94f519a59b1e88e682819332d7e98171 Mon Sep 17 00:00:00 2001 From: Sven Henkel Date: Sun, 2 Oct 2005 08:29:18 +1000 Subject: [PATCH 324/352] [PATCH] pmac/radeonfb: Add suspend support for M11 chip in new iBook 12" This adds suspend support for the Radeon M11 chip in 12" iBooks manufactured after July 2005. I don't know if the new 14" iBooks also have that chip, so they might also be supported. The chip identifies itself as "RV350 NV" (pci id 0x4e56), revision 0x80. Apple calls it "Snowy", xfree86 names it "ATI FireGL Mobility T2 (M11) NV (AGP)". So, we seem to be lucky here: The suspend-code for the M10 (which also is a "RV350 NV") works flawless for that chip. Signed-off-by: Sven Henkel Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Linus Torvalds --- drivers/video/aty/radeon_pm.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/drivers/video/aty/radeon_pm.c b/drivers/video/aty/radeon_pm.c index 59a1b6f85067..097d668c4fe5 100644 --- a/drivers/video/aty/radeon_pm.c +++ b/drivers/video/aty/radeon_pm.c @@ -62,9 +62,9 @@ static void radeon_pm_disable_dynamic_mode(struct radeonfb_info *rinfo) OUTPLL(pllSCLK_CNTL, tmp); return; } - /* RV350 (M10) */ + /* RV350 (M10/M11) */ if (rinfo->family == CHIP_FAMILY_RV350) { - /* for RV350/M10, no delays are required. */ + /* for RV350/M10/M11, no delays are required. */ tmp = INPLL(pllSCLK_CNTL2); tmp |= (SCLK_CNTL2__R300_FORCE_TCL | SCLK_CNTL2__R300_FORCE_GA | @@ -248,7 +248,7 @@ static void radeon_pm_enable_dynamic_mode(struct radeonfb_info *rinfo) return; } - /* M10 */ + /* M10/M11 */ if (rinfo->family == CHIP_FAMILY_RV350) { tmp = INPLL(pllSCLK_CNTL2); tmp &= ~(SCLK_CNTL2__R300_FORCE_TCL | @@ -1155,7 +1155,7 @@ static void radeon_pm_full_reset_sdram(struct radeonfb_info *rinfo) OUTREG( CRTC_GEN_CNTL, (crtcGenCntl | CRTC_GEN_CNTL__CRTC_DISP_REQ_EN_B) ); OUTREG( CRTC2_GEN_CNTL, (crtcGenCntl2 | CRTC2_GEN_CNTL__CRTC2_DISP_REQ_EN_B) ); - /* This is the code for the Aluminium PowerBooks M10 */ + /* This is the code for the Aluminium PowerBooks M10 / iBooks M11 */ if (rinfo->family == CHIP_FAMILY_RV350) { u32 sdram_mode_reg = rinfo->save_regs[35]; static u32 default_mrtable[] = @@ -2741,9 +2741,11 @@ void radeonfb_pm_init(struct radeonfb_info *rinfo, int dynclk) rinfo->pm_mode |= radeon_pm_d2; /* We can restart Jasper (M10 chip in albooks), BlueStone (7500 chip - * in some desktop G4s), and Via (M9+ chip on iBook G4) + * in some desktop G4s), Via (M9+ chip on iBook G4) and + * Snowy (M11 chip on iBook G4 manufactured after July 2005) */ - if (!strcmp(rinfo->of_node->name, "ATY,JasperParent")) { + if (!strcmp(rinfo->of_node->name, "ATY,JasperParent") || + !strcmp(rinfo->of_node->name, "ATY,SnowyParent")) { rinfo->reinit_func = radeon_reinitialize_M10; rinfo->pm_mode |= radeon_pm_off; } From 036bfdcb0dfa39fc1ff5ded196b5fd92f1bb9ea8 Mon Sep 17 00:00:00 2001 From: Sven Henkel Date: Sun, 2 Oct 2005 08:30:33 +1000 Subject: [PATCH 325/352] [PATCH] ppc32: Add new iBook 12" to PowerMac models table This adds the new iBook G4 (manufactured after July 2005) to the PowerMac models table. The model name (PowerBook6,7) is taken from a 12" iBook, I don't know if it also matches the 14" version. The patch applies to a vanilla 2.6.13.2 kernel. Signed-off-by: Sven Henkel Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Linus Torvalds --- arch/ppc/platforms/pmac_feature.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/ppc/platforms/pmac_feature.c b/arch/ppc/platforms/pmac_feature.c index 867336ad5d36..dd6d45ae0501 100644 --- a/arch/ppc/platforms/pmac_feature.c +++ b/arch/ppc/platforms/pmac_feature.c @@ -2337,6 +2337,10 @@ static struct pmac_mb_def pmac_mb_defs[] __pmacdata = { PMAC_TYPE_UNKNOWN_INTREPID, intrepid_features, PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE, }, + { "PowerBook6,7", "iBook G4", + PMAC_TYPE_UNKNOWN_INTREPID, intrepid_features, + PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE, + }, { "PowerBook6,8", "PowerBook G4 12\"", PMAC_TYPE_UNKNOWN_INTREPID, intrepid_features, PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE, From 0e3a64e2162f971180bf1fdd91c263dbdfcfd385 Mon Sep 17 00:00:00 2001 From: Russell King Date: Sun, 2 Oct 2005 18:02:25 +0100 Subject: [PATCH 326/352] [ARM] Fix EBSA110 network driver link detection EBSA110 link detection didn't read the register - it wrote it. Oops. Signed-off-by: Russell King --- drivers/net/arm/am79c961a.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/arm/am79c961a.c b/drivers/net/arm/am79c961a.c index 9b659e3c8d67..9f6eb39cf492 100644 --- a/drivers/net/arm/am79c961a.c +++ b/drivers/net/arm/am79c961a.c @@ -85,7 +85,7 @@ static inline unsigned short read_ireg(u_long base_addr, u_int reg) u_short v; __asm__( "str%?h %1, [%2] @ NAT_RAP\n\t" - "str%?h %0, [%2, #8] @ NET_IDP\n\t" + "ldr%?h %0, [%2, #8] @ NET_IDP\n\t" : "=r" (v) : "r" (reg), "r" (ISAIO_BASE + 0x0464)); return v; From 487fd4eb1445407c9760af08b0b34c3f4cdb4afc Mon Sep 17 00:00:00 2001 From: Russell King Date: Sun, 2 Oct 2005 18:12:03 +0100 Subject: [PATCH 327/352] [ARM] Fix init printk for EBSA110 network driver, and link timer Arrange for the initialisation printks to happen after we've registered the network interface, so we know what name the device is. Also, check the link every 500ms (and use msecs_to_jiffies.) Signed-off-by: Russell King --- drivers/net/arm/am79c961a.c | 20 +++++++++----------- 1 file changed, 9 insertions(+), 11 deletions(-) diff --git a/drivers/net/arm/am79c961a.c b/drivers/net/arm/am79c961a.c index 9f6eb39cf492..c56d86d371a9 100644 --- a/drivers/net/arm/am79c961a.c +++ b/drivers/net/arm/am79c961a.c @@ -15,16 +15,13 @@ */ #include #include -#include #include #include -#include #include #include #include #include #include -#include #include #include #include @@ -33,7 +30,6 @@ #include #include #include -#include #define TX_BUFFERS 15 #define RX_BUFFERS 25 @@ -288,7 +284,7 @@ static void am79c961_timer(unsigned long data) else if (!lnkstat && carrier) netif_carrier_off(dev); - mod_timer(&priv->timer, jiffies + 5*HZ); + mod_timer(&priv->timer, jiffies + msecs_to_jiffies(500)); } /* @@ -709,13 +705,9 @@ static int __init am79c961_init(void) goto release; am79c961_banner(); - printk(KERN_INFO "%s: ether address ", dev->name); - /* Retrive and print the ethernet address. */ - for (i = 0; i < 6; i++) { + for (i = 0; i < 6; i++) dev->dev_addr[i] = inb(dev->base_addr + i * 2) & 0xff; - printk (i == 5 ? "%02x\n" : "%02x:", dev->dev_addr[i]); - } spin_lock_init(&priv->chip_lock); init_timer(&priv->timer); @@ -736,8 +728,14 @@ static int __init am79c961_init(void) #endif ret = register_netdev(dev); - if (ret == 0) + if (ret == 0) { + printk(KERN_INFO "%s: ether address ", dev->name); + + for (i = 0; i < 6; i++) + printk (i == 5 ? "%02x\n" : "%02x:", dev->dev_addr[i]); + return 0; + } release: release_region(dev->base_addr, 0x18); From 9e70592fcd87c90e9e98090d66cb79f39d740d4a Mon Sep 17 00:00:00 2001 From: James Bottomley Date: Sun, 2 Oct 2005 12:59:49 -0500 Subject: [PATCH 328/352] [SCSI] fix potential panic with proc on module removal There's a problem in our host release in that it calls scsi_proc_hostdir_rm(). However, if you hold a reference to the host as you remove the module, the host template (which proc uses) will be freed and the system will panic when the host device is finally released. Fix this by moving scsi_proc_hostdir_rm() to where it should be: in scsi_remove_host(). Signed-off-by: James Bottomley --- drivers/scsi/hosts.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c index f2a72d33132c..02fe371b0ab8 100644 --- a/drivers/scsi/hosts.c +++ b/drivers/scsi/hosts.c @@ -176,6 +176,7 @@ void scsi_remove_host(struct Scsi_Host *shost) transport_unregister_device(&shost->shost_gendev); class_device_unregister(&shost->shost_classdev); device_del(&shost->shost_gendev); + scsi_proc_hostdir_rm(shost->hostt); } EXPORT_SYMBOL(scsi_remove_host); @@ -262,7 +263,6 @@ static void scsi_host_dev_release(struct device *dev) if (shost->work_q) destroy_workqueue(shost->work_q); - scsi_proc_hostdir_rm(shost->hostt); scsi_destroy_command_freelist(shost); kfree(shost->shost_data); From 97af50f60ff1202b0dd9ce481d4cf98c6a578bec Mon Sep 17 00:00:00 2001 From: James Bottomley Date: Sun, 2 Oct 2005 15:22:35 -0500 Subject: [PATCH 329/352] [SCSI] aic7xxx/aic79xx: fix module removal path not to panic In these drivers, scsi_remove_host() is called too late, at the point it is called, the driver has already shut down too far to accept any I/O that the shutdown might generate. Any generated I/O actually triggers a panic. Fix this by calling scsi_remove_host() as early as possible and not calling scsi_host_put() until just before we kfree the ahc_softc. Signed-off-by: James Bottomley --- drivers/scsi/aic7xxx/aic7770_osm.c | 3 +++ drivers/scsi/aic7xxx/aic79xx_osm.c | 8 +++----- drivers/scsi/aic7xxx/aic79xx_osm_pci.c | 3 +++ drivers/scsi/aic7xxx/aic7xxx_osm.c | 8 +++----- drivers/scsi/aic7xxx/aic7xxx_osm_pci.c | 3 +++ 5 files changed, 15 insertions(+), 10 deletions(-) diff --git a/drivers/scsi/aic7xxx/aic7770_osm.c b/drivers/scsi/aic7xxx/aic7770_osm.c index 70c5fb59c9ea..d754b3267863 100644 --- a/drivers/scsi/aic7xxx/aic7770_osm.c +++ b/drivers/scsi/aic7xxx/aic7770_osm.c @@ -112,6 +112,9 @@ aic7770_remove(struct device *dev) struct ahc_softc *ahc = dev_get_drvdata(dev); u_long s; + if (ahc->platform_data && ahc->platform_data->host) + scsi_remove_host(ahc->platform_data->host); + ahc_lock(ahc, &s); ahc_intr_enable(ahc, FALSE); ahc_unlock(ahc, &s); diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c index 6b6d4e287793..95c285cc83e4 100644 --- a/drivers/scsi/aic7xxx/aic79xx_osm.c +++ b/drivers/scsi/aic7xxx/aic79xx_osm.c @@ -1192,11 +1192,6 @@ ahd_platform_free(struct ahd_softc *ahd) int i, j; if (ahd->platform_data != NULL) { - if (ahd->platform_data->host != NULL) { - scsi_remove_host(ahd->platform_data->host); - scsi_host_put(ahd->platform_data->host); - } - /* destroy all of the device and target objects */ for (i = 0; i < AHD_NUM_TARGETS; i++) { starget = ahd->platform_data->starget[i]; @@ -1226,6 +1221,9 @@ ahd_platform_free(struct ahd_softc *ahd) release_mem_region(ahd->platform_data->mem_busaddr, 0x1000); } + if (ahd->platform_data->host) + scsi_host_put(ahd->platform_data->host); + free(ahd->platform_data, M_DEVBUF); } } diff --git a/drivers/scsi/aic7xxx/aic79xx_osm_pci.c b/drivers/scsi/aic7xxx/aic79xx_osm_pci.c index 390b53852d4b..bf360ae021ab 100644 --- a/drivers/scsi/aic7xxx/aic79xx_osm_pci.c +++ b/drivers/scsi/aic7xxx/aic79xx_osm_pci.c @@ -95,6 +95,9 @@ ahd_linux_pci_dev_remove(struct pci_dev *pdev) struct ahd_softc *ahd = pci_get_drvdata(pdev); u_long s; + if (ahd->platform_data && ahd->platform_data->host) + scsi_remove_host(ahd->platform_data->host); + ahd_lock(ahd, &s); ahd_intr_enable(ahd, FALSE); ahd_unlock(ahd, &s); diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c index 876d1de8480d..6ee1435d37fa 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_osm.c +++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c @@ -1209,11 +1209,6 @@ ahc_platform_free(struct ahc_softc *ahc) int i, j; if (ahc->platform_data != NULL) { - if (ahc->platform_data->host != NULL) { - scsi_remove_host(ahc->platform_data->host); - scsi_host_put(ahc->platform_data->host); - } - /* destroy all of the device and target objects */ for (i = 0; i < AHC_NUM_TARGETS; i++) { starget = ahc->platform_data->starget[i]; @@ -1242,6 +1237,9 @@ ahc_platform_free(struct ahc_softc *ahc) 0x1000); } + if (ahc->platform_data->host) + scsi_host_put(ahc->platform_data->host); + free(ahc->platform_data, M_DEVBUF); } } diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c b/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c index 3ce77ddc889e..cb30d9c1153d 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c +++ b/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c @@ -143,6 +143,9 @@ ahc_linux_pci_dev_remove(struct pci_dev *pdev) struct ahc_softc *ahc = pci_get_drvdata(pdev); u_long s; + if (ahc->platform_data && ahc->platform_data->host) + scsi_remove_host(ahc->platform_data->host); + ahc_lock(ahc, &s); ahc_intr_enable(ahc, FALSE); ahc_unlock(ahc, &s); From d70ddac1bf3a8b102996588010ca87018c3a4a04 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Sun, 2 Oct 2005 12:49:52 -0700 Subject: [PATCH 330/352] [PATCH] alpha: fix kernel alignment traps Pass in the pointer to the on-stack registers rather than using them directly as the arguments. Ivan noticed that I missed a spot when purging the registers as first stack parameter idiom. Signed-off-by: Linus Torvalds --- arch/alpha/kernel/entry.S | 1 + arch/alpha/kernel/traps.c | 15 +++++++-------- 2 files changed, 8 insertions(+), 8 deletions(-) diff --git a/arch/alpha/kernel/entry.S b/arch/alpha/kernel/entry.S index 76cc0cb5fc2e..e38671c922bc 100644 --- a/arch/alpha/kernel/entry.S +++ b/arch/alpha/kernel/entry.S @@ -196,6 +196,7 @@ entUna: stq $26, 208($sp) stq $27, 216($sp) stq $28, 224($sp) + mov $sp, $19 stq $gp, 232($sp) lda $8, 0x3fff stq $31, 248($sp) diff --git a/arch/alpha/kernel/traps.c b/arch/alpha/kernel/traps.c index 6f509a644bdd..f9d12319e0fb 100644 --- a/arch/alpha/kernel/traps.c +++ b/arch/alpha/kernel/traps.c @@ -446,16 +446,15 @@ struct unaligned_stat { /* Macro for exception fixup code to access integer registers. */ -#define una_reg(r) (regs.regs[(r) >= 16 && (r) <= 18 ? (r)+19 : (r)]) +#define una_reg(r) (regs->regs[(r) >= 16 && (r) <= 18 ? (r)+19 : (r)]) asmlinkage void do_entUna(void * va, unsigned long opcode, unsigned long reg, - unsigned long a3, unsigned long a4, unsigned long a5, - struct allregs regs) + struct allregs *regs) { long error, tmp1, tmp2, tmp3, tmp4; - unsigned long pc = regs.pc - 4; + unsigned long pc = regs->pc - 4; const struct exception_table_entry *fixup; unaligned[0].count++; @@ -636,7 +635,7 @@ got_exception: printk("Forwarding unaligned exception at %lx (%lx)\n", pc, newpc); - (®s)->pc = newpc; + regs->pc = newpc; return; } @@ -650,7 +649,7 @@ got_exception: current->comm, current->pid); printk("pc = [<%016lx>] ra = [<%016lx>] ps = %04lx\n", - pc, una_reg(26), regs.ps); + pc, una_reg(26), regs->ps); printk("r0 = %016lx r1 = %016lx r2 = %016lx\n", una_reg(0), una_reg(1), una_reg(2)); printk("r3 = %016lx r4 = %016lx r5 = %016lx\n", @@ -670,10 +669,10 @@ got_exception: una_reg(22), una_reg(23), una_reg(24)); printk("r25= %016lx r27= %016lx r28= %016lx\n", una_reg(25), una_reg(27), una_reg(28)); - printk("gp = %016lx sp = %p\n", regs.gp, ®s+1); + printk("gp = %016lx sp = %p\n", regs->gp, regs+1); dik_show_code((unsigned int *)pc); - dik_show_trace((unsigned long *)(®s+1)); + dik_show_trace((unsigned long *)(regs+1)); if (test_and_set_thread_flag (TIF_DIE_IF_KERNEL)) { printk("die_if_kernel recursion detected.\n"); From 2c3a0540999ac9bd7147fb98833224a58cdaf217 Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Sun, 2 Oct 2005 22:34:35 +0100 Subject: [PATCH 331/352] [ARM] 2943/1: Clear the exclusive monitor in v6_early_abort Patch from Catalin Marinas Data abort caused by ldrex/strex can leave the exclusive monitor in an unpredictable state. It is recommended that a clrex/strex is performed to clear this state. Signed-off-by: Catalin Marinas Signed-off-by: Russell King --- arch/arm/mm/abort-ev6.S | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm/mm/abort-ev6.S b/arch/arm/mm/abort-ev6.S index 8f76f3df7b4c..dbd346033122 100644 --- a/arch/arm/mm/abort-ev6.S +++ b/arch/arm/mm/abort-ev6.S @@ -20,6 +20,11 @@ */ .align 5 ENTRY(v6_early_abort) +#ifdef CONFIG_CPU_MPCORE + clrex +#else + strex r0, r1, [sp] @ Clear the exclusive monitor +#endif mrc p15, 0, r1, c5, c0, 0 @ get FSR mrc p15, 0, r0, c6, c0, 0 @ get FAR /* From 75f8426c17bc091260a6f7536ba10767596e15eb Mon Sep 17 00:00:00 2001 From: Paul Jackson Date: Sun, 2 Oct 2005 18:01:42 -0700 Subject: [PATCH 332/352] [PATCH] Document from line in patch format Document more details of patch format such as the "from" line and the "---" marker line, and provide more references for patch guidelines. Signed-off-by: Paul Jackson Signed-off-by: Linus Torvalds --- Documentation/SubmittingPatches | 70 ++++++++++++++++++++++++++++++++- 1 file changed, 69 insertions(+), 1 deletion(-) diff --git a/Documentation/SubmittingPatches b/Documentation/SubmittingPatches index 7f43b040311e..1d96efec5e8f 100644 --- a/Documentation/SubmittingPatches +++ b/Documentation/SubmittingPatches @@ -301,8 +301,68 @@ now, but you can do this to mark internal company procedures or just point out some special detail about the sign-off. +12) The canonical patch format -12) More references for submitting patches +The canonical patch subject line is: + + Subject: [PATCH 001/123] [:] + +The canonical patch message body contains the following: + + - A "from" line specifying the patch author. + + - An empty line. + + - The body of the explanation, which will be copied to the + permanent changelog to describe this patch. + + - The "Signed-off-by:" lines, described above, which will + also go in the changelog. + + - A marker line containing simply "---". + + - Any additional comments not suitable for the changelog. + + - The actual patch (diff output). + +The Subject line format makes it very easy to sort the emails +alphabetically by subject line - pretty much any email reader will +support that - since because the sequence number is zero-padded, +the numerical and alphabetic sort is the same. + +See further details on how to phrase the "" in the +"Subject:" line in Andrew Morton's "The perfect patch", referenced +below. + +The "from" line must be the very first line in the message body, +and has the form: + + From: Original Author + +The "from" line specifies who will be credited as the author of the +patch in the permanent changelog. If the "from" line is missing, +then the "From:" line from the email header will be used to determine +the patch author in the changelog. + +The explanation body will be committed to the permanent source +changelog, so should make sense to a competent reader who has long +since forgotten the immediate details of the discussion that might +have led to this patch. + +The "---" marker line serves the essential purpose of marking for patch +handling tools where the changelog message ends. + +One good use for the additional comments after the "---" marker is for +a diffstat, to show what files have changed, and the number of inserted +and deleted lines per file. A diffstat is especially useful on bigger +patches. Other comments relevant only to the moment or the maintainer, +not suitable for the permanent changelog, should also go here. + +See more details on the proper patch format in the following +references. + + +13) More references for submitting patches Andrew Morton, "The perfect patch" (tpp). @@ -310,6 +370,14 @@ Andrew Morton, "The perfect patch" (tpp). Jeff Garzik, "Linux kernel patch submission format." +Greg KH, "How to piss off a kernel subsystem maintainer" + + +Kernel Documentation/CodingStyle + + +Linus Torvald's mail on the canonical patch format: + ----------------------------------- From 51c928c34fa7cff38df584ad01de988805877dba Mon Sep 17 00:00:00 2001 From: James Bottomley Date: Sat, 1 Oct 2005 09:38:05 -0500 Subject: [PATCH 333/352] [SCSI] Legacy MegaRAID: Fix READ CAPACITY Some Legacy megaraid cards can't actually cope with the scatter/gather version of the READ CAPACITY command (which is what we now send them since altering all SCSI internal I/O to go via the block layer). Fix this (and a few other broken megaraid driver assumptions) by sending the non-sg version of the command if the sg list only has a single element. Signed-off-by: James Bottomley --- drivers/scsi/megaraid.c | 68 +++++++++++++++++++++++++++++------------ 1 file changed, 49 insertions(+), 19 deletions(-) diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c index 6f308ebe3e79..61a6fd810bb4 100644 --- a/drivers/scsi/megaraid.c +++ b/drivers/scsi/megaraid.c @@ -621,8 +621,6 @@ mega_build_cmd(adapter_t *adapter, Scsi_Cmnd *cmd, int *busy) if(islogical) { switch (cmd->cmnd[0]) { case TEST_UNIT_READY: - memset(cmd->request_buffer, 0, cmd->request_bufflen); - #if MEGA_HAVE_CLUSTERING /* * Do we support clustering and is the support enabled @@ -652,11 +650,28 @@ mega_build_cmd(adapter_t *adapter, Scsi_Cmnd *cmd, int *busy) return NULL; #endif - case MODE_SENSE: + case MODE_SENSE: { + char *buf; + + if (cmd->use_sg) { + struct scatterlist *sg; + + sg = (struct scatterlist *)cmd->request_buffer; + buf = kmap_atomic(sg->page, KM_IRQ0) + + sg->offset; + } else + buf = cmd->request_buffer; memset(cmd->request_buffer, 0, cmd->cmnd[4]); + if (cmd->use_sg) { + struct scatterlist *sg; + + sg = (struct scatterlist *)cmd->request_buffer; + kunmap_atomic(buf - sg->offset, KM_IRQ0); + } cmd->result = (DID_OK << 16); cmd->scsi_done(cmd); return NULL; + } case READ_CAPACITY: case INQUIRY: @@ -1685,14 +1700,23 @@ mega_rundoneq (adapter_t *adapter) static void mega_free_scb(adapter_t *adapter, scb_t *scb) { + unsigned long length; + switch( scb->dma_type ) { case MEGA_DMA_TYPE_NONE: break; case MEGA_BULK_DATA: + if (scb->cmd->use_sg == 0) + length = scb->cmd->request_bufflen; + else { + struct scatterlist *sgl = + (struct scatterlist *)scb->cmd->request_buffer; + length = sgl->length; + } pci_unmap_page(adapter->dev, scb->dma_h_bulkdata, - scb->cmd->request_bufflen, scb->dma_direction); + length, scb->dma_direction); break; case MEGA_SGLIST: @@ -1741,6 +1765,7 @@ mega_build_sglist(adapter_t *adapter, scb_t *scb, u32 *buf, u32 *len) struct scatterlist *sgl; struct page *page; unsigned long offset; + unsigned int length; Scsi_Cmnd *cmd; int sgcnt; int idx; @@ -1748,14 +1773,23 @@ mega_build_sglist(adapter_t *adapter, scb_t *scb, u32 *buf, u32 *len) cmd = scb->cmd; /* Scatter-gather not used */ - if( !cmd->use_sg ) { + if( cmd->use_sg == 0 || (cmd->use_sg == 1 && + !adapter->has_64bit_addr)) { - page = virt_to_page(cmd->request_buffer); - offset = offset_in_page(cmd->request_buffer); + if (cmd->use_sg == 0) { + page = virt_to_page(cmd->request_buffer); + offset = offset_in_page(cmd->request_buffer); + length = cmd->request_bufflen; + } else { + sgl = (struct scatterlist *)cmd->request_buffer; + page = sgl->page; + offset = sgl->offset; + length = sgl->length; + } scb->dma_h_bulkdata = pci_map_page(adapter->dev, page, offset, - cmd->request_bufflen, + length, scb->dma_direction); scb->dma_type = MEGA_BULK_DATA; @@ -1765,14 +1799,14 @@ mega_build_sglist(adapter_t *adapter, scb_t *scb, u32 *buf, u32 *len) */ if( adapter->has_64bit_addr ) { scb->sgl64[0].address = scb->dma_h_bulkdata; - scb->sgl64[0].length = cmd->request_bufflen; + scb->sgl64[0].length = length; *buf = (u32)scb->sgl_dma_addr; - *len = (u32)cmd->request_bufflen; + *len = (u32)length; return 1; } else { *buf = (u32)scb->dma_h_bulkdata; - *len = (u32)cmd->request_bufflen; + *len = (u32)length; } return 0; } @@ -1791,27 +1825,23 @@ mega_build_sglist(adapter_t *adapter, scb_t *scb, u32 *buf, u32 *len) if( sgcnt > adapter->sglen ) BUG(); + *len = 0; + for( idx = 0; idx < sgcnt; idx++, sgl++ ) { if( adapter->has_64bit_addr ) { scb->sgl64[idx].address = sg_dma_address(sgl); - scb->sgl64[idx].length = sg_dma_len(sgl); + *len += scb->sgl64[idx].length = sg_dma_len(sgl); } else { scb->sgl[idx].address = sg_dma_address(sgl); - scb->sgl[idx].length = sg_dma_len(sgl); + *len += scb->sgl[idx].length = sg_dma_len(sgl); } } /* Reset pointer and length fields */ *buf = scb->sgl_dma_addr; - /* - * For passthru command, dataxferlen must be set, even for commands - * with a sg list - */ - *len = (u32)cmd->request_bufflen; - /* Return count of SG requests */ return sgcnt; } From d6b9acc0c6c4a7c5d484d15271a5274656d0864f Mon Sep 17 00:00:00 2001 From: Paul Jackson Date: Mon, 3 Oct 2005 00:29:10 -0700 Subject: [PATCH 334/352] [PATCH] Document patch subject line better Improve explanation of the Subject line fields in Documentation/SubmittingPatches Canonical Patch Format. Signed-off-by: Paul Jackson Signed-off-by: Linus Torvalds --- Documentation/SubmittingPatches | 24 ++++++++++++++++++++---- 1 file changed, 20 insertions(+), 4 deletions(-) diff --git a/Documentation/SubmittingPatches b/Documentation/SubmittingPatches index 1d96efec5e8f..237d54c44bc5 100644 --- a/Documentation/SubmittingPatches +++ b/Documentation/SubmittingPatches @@ -305,7 +305,7 @@ point out some special detail about the sign-off. The canonical patch subject line is: - Subject: [PATCH 001/123] [:] + Subject: [PATCH 001/123] subsystem: summary phrase The canonical patch message body contains the following: @@ -330,9 +330,25 @@ alphabetically by subject line - pretty much any email reader will support that - since because the sequence number is zero-padded, the numerical and alphabetic sort is the same. -See further details on how to phrase the "" in the -"Subject:" line in Andrew Morton's "The perfect patch", referenced -below. +The "subsystem" in the email's Subject should identify which +area or subsystem of the kernel is being patched. + +The "summary phrase" in the email's Subject should concisely +describe the patch which that email contains. The "summary +phrase" should not be a filename. Do not use the same "summary +phrase" for every patch in a whole patch series. + +Bear in mind that the "summary phrase" of your email becomes +a globally-unique identifier for that patch. It propagates +all the way into the git changelog. The "summary phrase" may +later be used in developer discussions which refer to the patch. +People will want to google for the "summary phrase" to read +discussion regarding that patch. + +A couple of example Subjects: + + Subject: [patch 2/5] ext2: improve scalability of bitmap searching + Subject: [PATCHv2 001/207] x86: fix eflags tracking The "from" line must be the very first line in the message body, and has the form: From ddea7be0ec8d1374f0b483a81566ed56ec9f3905 Mon Sep 17 00:00:00 2001 From: Ravikiran G Thirumalai Date: Mon, 3 Oct 2005 10:36:28 -0700 Subject: [PATCH 335/352] [PATCH] x86_64: Fix numa node topology detection for srat based x86_64 boxes 2.6.14-rc2 does not assign cpus to proper nodeids on our em64t numa boxen. Our boxes use acpi srat for parsing the numa information. srat_detect_node() used phys_proc_id[] to get to the cpu's local apic id, but phys_proc_id[] represents the cpu<->initial_apic_id mapping. The following patch fixes this problem. Now apicid_to_node[] is properly indexed with the local apic id. Signed-off-by: Ravikiran Thirumalai Acked-by: Suresh Siddha Cc: Andi Kleen Signed-off-by: Linus Torvalds --- arch/x86_64/kernel/setup.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c index 257f5ba17902..cb28df14ff6f 100644 --- a/arch/x86_64/kernel/setup.c +++ b/arch/x86_64/kernel/setup.c @@ -967,13 +967,12 @@ static int __cpuinit intel_num_cpu_cores(struct cpuinfo_x86 *c) static void srat_detect_node(void) { #ifdef CONFIG_NUMA - unsigned apicid, node; + unsigned node; int cpu = smp_processor_id(); /* Don't do the funky fallback heuristics the AMD version employs for now. */ - apicid = phys_proc_id[cpu]; - node = apicid_to_node[apicid]; + node = apicid_to_node[hard_smp_processor_id()]; if (node == NUMA_NO_NODE) node = 0; cpu_to_node[cpu] = node; From 325ed8239309cb29f10ea58c5a668058ead11479 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Mon, 3 Oct 2005 13:57:23 -0700 Subject: [PATCH 336/352] [NET]: Fix packet timestamping. I've found the problem in general. It affects any 64-bit architecture. The problem occurs when you change the system time. Suppose that when you boot your system clock is forward by a day. This gets recorded down in skb_tv_base. You then wind the clock back by a day. From that point onwards the offset will be negative which essentially overflows the 32-bit variables they're stored in. In fact, why don't we just store the real time stamp in those 32-bit variables? After all, we're not going to overflow for quite a while yet. When we do overflow, we'll need a better solution of course. Signed-off-by: Herbert Xu Signed-off-by: David S. Miller --- include/linux/skbuff.h | 12 +++--------- net/core/skbuff.c | 5 ----- net/ipv4/netfilter/ip_queue.c | 4 ++-- net/ipv4/netfilter/ipt_ULOG.c | 4 ++-- net/ipv6/netfilter/ip6_queue.c | 4 ++-- net/netfilter/nfnetlink_log.c | 4 ++-- net/netfilter/nfnetlink_queue.c | 4 ++-- net/packet/af_packet.c | 4 ++-- 8 files changed, 15 insertions(+), 26 deletions(-) diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 2741c0c55e83..466c879f82b8 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -155,8 +155,6 @@ struct skb_shared_info { #define SKB_DATAREF_SHIFT 16 #define SKB_DATAREF_MASK ((1 << SKB_DATAREF_SHIFT) - 1) -extern struct timeval skb_tv_base; - struct skb_timeval { u32 off_sec; u32 off_usec; @@ -175,7 +173,7 @@ enum { * @prev: Previous buffer in list * @list: List we are on * @sk: Socket we are owned by - * @tstamp: Time we arrived stored as offset to skb_tv_base + * @tstamp: Time we arrived * @dev: Device we arrived on/are leaving by * @input_dev: Device we arrived on * @h: Transport layer header @@ -1255,10 +1253,6 @@ static inline void skb_get_timestamp(const struct sk_buff *skb, struct timeval * { stamp->tv_sec = skb->tstamp.off_sec; stamp->tv_usec = skb->tstamp.off_usec; - if (skb->tstamp.off_sec) { - stamp->tv_sec += skb_tv_base.tv_sec; - stamp->tv_usec += skb_tv_base.tv_usec; - } } /** @@ -1272,8 +1266,8 @@ static inline void skb_get_timestamp(const struct sk_buff *skb, struct timeval * */ static inline void skb_set_timestamp(struct sk_buff *skb, const struct timeval *stamp) { - skb->tstamp.off_sec = stamp->tv_sec - skb_tv_base.tv_sec; - skb->tstamp.off_usec = stamp->tv_usec - skb_tv_base.tv_usec; + skb->tstamp.off_sec = stamp->tv_sec; + skb->tstamp.off_usec = stamp->tv_usec; } extern void __net_timestamp(struct sk_buff *skb); diff --git a/net/core/skbuff.c b/net/core/skbuff.c index f80a28785610..0e9431b59fb2 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -71,8 +71,6 @@ static kmem_cache_t *skbuff_head_cache __read_mostly; static kmem_cache_t *skbuff_fclone_cache __read_mostly; -struct timeval __read_mostly skb_tv_base; - /* * Keep out-of-line to prevent kernel bloat. * __builtin_return_address is not used because it is not always @@ -1708,8 +1706,6 @@ void __init skb_init(void) NULL, NULL); if (!skbuff_fclone_cache) panic("cannot create skbuff cache"); - - do_gettimeofday(&skb_tv_base); } EXPORT_SYMBOL(___pskb_trim); @@ -1743,4 +1739,3 @@ EXPORT_SYMBOL(skb_prepare_seq_read); EXPORT_SYMBOL(skb_seq_read); EXPORT_SYMBOL(skb_abort_seq_read); EXPORT_SYMBOL(skb_find_text); -EXPORT_SYMBOL(skb_tv_base); diff --git a/net/ipv4/netfilter/ip_queue.c b/net/ipv4/netfilter/ip_queue.c index d54f14d926f6..36339eb39e17 100644 --- a/net/ipv4/netfilter/ip_queue.c +++ b/net/ipv4/netfilter/ip_queue.c @@ -240,8 +240,8 @@ ipq_build_packet_message(struct ipq_queue_entry *entry, int *errp) pmsg->packet_id = (unsigned long )entry; pmsg->data_len = data_len; - pmsg->timestamp_sec = skb_tv_base.tv_sec + entry->skb->tstamp.off_sec; - pmsg->timestamp_usec = skb_tv_base.tv_usec + entry->skb->tstamp.off_usec; + pmsg->timestamp_sec = entry->skb->tstamp.off_sec; + pmsg->timestamp_usec = entry->skb->tstamp.off_usec; pmsg->mark = entry->skb->nfmark; pmsg->hook = entry->info->hook; pmsg->hw_protocol = entry->skb->protocol; diff --git a/net/ipv4/netfilter/ipt_ULOG.c b/net/ipv4/netfilter/ipt_ULOG.c index e2c14f3cb2fc..2883ccd8a91d 100644 --- a/net/ipv4/netfilter/ipt_ULOG.c +++ b/net/ipv4/netfilter/ipt_ULOG.c @@ -225,8 +225,8 @@ static void ipt_ulog_packet(unsigned int hooknum, /* copy hook, prefix, timestamp, payload, etc. */ pm->data_len = copy_len; - pm->timestamp_sec = skb_tv_base.tv_sec + skb->tstamp.off_sec; - pm->timestamp_usec = skb_tv_base.tv_usec + skb->tstamp.off_usec; + pm->timestamp_sec = skb->tstamp.off_sec; + pm->timestamp_usec = skb->tstamp.off_usec; pm->mark = skb->nfmark; pm->hook = hooknum; if (prefix != NULL) diff --git a/net/ipv6/netfilter/ip6_queue.c b/net/ipv6/netfilter/ip6_queue.c index aa11cf366efa..5027bbe6415e 100644 --- a/net/ipv6/netfilter/ip6_queue.c +++ b/net/ipv6/netfilter/ip6_queue.c @@ -238,8 +238,8 @@ ipq_build_packet_message(struct ipq_queue_entry *entry, int *errp) pmsg->packet_id = (unsigned long )entry; pmsg->data_len = data_len; - pmsg->timestamp_sec = skb_tv_base.tv_sec + entry->skb->tstamp.off_sec; - pmsg->timestamp_usec = skb_tv_base.tv_usec + entry->skb->tstamp.off_usec; + pmsg->timestamp_sec = entry->skb->tstamp.off_sec; + pmsg->timestamp_usec = entry->skb->tstamp.off_usec; pmsg->mark = entry->skb->nfmark; pmsg->hook = entry->info->hook; pmsg->hw_protocol = entry->skb->protocol; diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c index ff5601ceedcb..efcd10f996ba 100644 --- a/net/netfilter/nfnetlink_log.c +++ b/net/netfilter/nfnetlink_log.c @@ -494,8 +494,8 @@ __build_packet_message(struct nfulnl_instance *inst, if (skb->tstamp.off_sec) { struct nfulnl_msg_packet_timestamp ts; - ts.sec = cpu_to_be64(skb_tv_base.tv_sec + skb->tstamp.off_sec); - ts.usec = cpu_to_be64(skb_tv_base.tv_usec + skb->tstamp.off_usec); + ts.sec = cpu_to_be64(skb->tstamp.off_sec); + ts.usec = cpu_to_be64(skb->tstamp.off_usec); NFA_PUT(inst->skb, NFULA_TIMESTAMP, sizeof(ts), &ts); } diff --git a/net/netfilter/nfnetlink_queue.c b/net/netfilter/nfnetlink_queue.c index f81fe8c52e99..eaa44c49567b 100644 --- a/net/netfilter/nfnetlink_queue.c +++ b/net/netfilter/nfnetlink_queue.c @@ -492,8 +492,8 @@ nfqnl_build_packet_message(struct nfqnl_instance *queue, if (entry->skb->tstamp.off_sec) { struct nfqnl_msg_packet_timestamp ts; - ts.sec = cpu_to_be64(skb_tv_base.tv_sec + entry->skb->tstamp.off_sec); - ts.usec = cpu_to_be64(skb_tv_base.tv_usec + entry->skb->tstamp.off_usec); + ts.sec = cpu_to_be64(entry->skb->tstamp.off_sec); + ts.usec = cpu_to_be64(entry->skb->tstamp.off_usec); NFA_PUT(skb, NFQA_TIMESTAMP, sizeof(ts), &ts); } diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index 6a67a87384cc..499ae3df4a44 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -654,8 +654,8 @@ static int tpacket_rcv(struct sk_buff *skb, struct net_device *dev, struct packe __net_timestamp(skb); sock_enable_timestamp(sk); } - h->tp_sec = skb_tv_base.tv_sec + skb->tstamp.off_sec; - h->tp_usec = skb_tv_base.tv_usec + skb->tstamp.off_usec; + h->tp_sec = skb->tstamp.off_sec; + h->tp_usec = skb->tstamp.off_usec; sll = (struct sockaddr_ll*)((u8*)h + TPACKET_ALIGN(sizeof(*h))); sll->sll_halen = 0; From a232f76732e11c91c2215d3a43cf9ebc7f939939 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 3 Oct 2005 14:01:37 -0700 Subject: [PATCH 337/352] [CASSINI]: Convert to ethtool_ops Signed-off-by: Al Viro Signed-off-by: David S. Miller --- drivers/net/cassini.c | 530 ++++++++++++++++++------------------------ 1 file changed, 228 insertions(+), 302 deletions(-) diff --git a/drivers/net/cassini.c b/drivers/net/cassini.c index 45831fb377a0..2e617424d3fb 100644 --- a/drivers/net/cassini.c +++ b/drivers/net/cassini.c @@ -4423,18 +4423,14 @@ static struct { #define CAS_REG_LEN (sizeof(ethtool_register_table)/sizeof(int)) #define CAS_MAX_REGS (sizeof (u32)*CAS_REG_LEN) -static u8 *cas_get_regs(struct cas *cp) +static void cas_read_regs(struct cas *cp, u8 *ptr, int len) { - u8 *ptr = kmalloc(CAS_MAX_REGS, GFP_KERNEL); u8 *p; int i; unsigned long flags; - if (!ptr) - return NULL; - spin_lock_irqsave(&cp->lock, flags); - for (i = 0, p = ptr; i < CAS_REG_LEN ; i ++, p += sizeof(u32)) { + for (i = 0, p = ptr; i < len ; i ++, p += sizeof(u32)) { u16 hval; u32 val; if (ethtool_register_table[i].offsets < 0) { @@ -4447,8 +4443,6 @@ static u8 *cas_get_regs(struct cas *cp) memcpy(p, (u8 *)&val, sizeof(u32)); } spin_unlock_irqrestore(&cp->lock, flags); - - return ptr; } static struct net_device_stats *cas_get_stats(struct net_device *dev) @@ -4561,316 +4555,251 @@ static void cas_set_multicast(struct net_device *dev) spin_unlock_irqrestore(&cp->lock, flags); } -/* Eventually add support for changing the advertisement - * on autoneg. - */ -static int cas_ethtool_ioctl(struct net_device *dev, void __user *ep_user) +static void cas_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) +{ + struct cas *cp = netdev_priv(dev); + strncpy(info->driver, DRV_MODULE_NAME, ETHTOOL_BUSINFO_LEN); + strncpy(info->version, DRV_MODULE_VERSION, ETHTOOL_BUSINFO_LEN); + info->fw_version[0] = '\0'; + strncpy(info->bus_info, pci_name(cp->pdev), ETHTOOL_BUSINFO_LEN); + info->regdump_len = cp->casreg_len < CAS_MAX_REGS ? + cp->casreg_len : CAS_MAX_REGS; + info->n_stats = CAS_NUM_STAT_KEYS; +} + +static int cas_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) { struct cas *cp = netdev_priv(dev); u16 bmcr; int full_duplex, speed, pause; - struct ethtool_cmd ecmd; unsigned long flags; enum link_state linkstate = link_up; - if (copy_from_user(&ecmd, ep_user, sizeof(ecmd))) - return -EFAULT; - - switch(ecmd.cmd) { - case ETHTOOL_GDRVINFO: { - struct ethtool_drvinfo info = { .cmd = ETHTOOL_GDRVINFO }; - - strncpy(info.driver, DRV_MODULE_NAME, - ETHTOOL_BUSINFO_LEN); - strncpy(info.version, DRV_MODULE_VERSION, - ETHTOOL_BUSINFO_LEN); - info.fw_version[0] = '\0'; - strncpy(info.bus_info, pci_name(cp->pdev), - ETHTOOL_BUSINFO_LEN); - info.regdump_len = cp->casreg_len < CAS_MAX_REGS ? - cp->casreg_len : CAS_MAX_REGS; - info.n_stats = CAS_NUM_STAT_KEYS; - if (copy_to_user(ep_user, &info, sizeof(info))) - return -EFAULT; - - return 0; + cmd->advertising = 0; + cmd->supported = SUPPORTED_Autoneg; + if (cp->cas_flags & CAS_FLAG_1000MB_CAP) { + cmd->supported |= SUPPORTED_1000baseT_Full; + cmd->advertising |= ADVERTISED_1000baseT_Full; } - case ETHTOOL_GSET: - ecmd.advertising = 0; - ecmd.supported = SUPPORTED_Autoneg; - if (cp->cas_flags & CAS_FLAG_1000MB_CAP) { - ecmd.supported |= SUPPORTED_1000baseT_Full; - ecmd.advertising |= ADVERTISED_1000baseT_Full; + /* Record PHY settings if HW is on. */ + spin_lock_irqsave(&cp->lock, flags); + bmcr = 0; + linkstate = cp->lstate; + if (CAS_PHY_MII(cp->phy_type)) { + cmd->port = PORT_MII; + cmd->transceiver = (cp->cas_flags & CAS_FLAG_SATURN) ? + XCVR_INTERNAL : XCVR_EXTERNAL; + cmd->phy_address = cp->phy_addr; + cmd->advertising |= ADVERTISED_TP | ADVERTISED_MII | + ADVERTISED_10baseT_Half | + ADVERTISED_10baseT_Full | + ADVERTISED_100baseT_Half | + ADVERTISED_100baseT_Full; + + cmd->supported |= + (SUPPORTED_10baseT_Half | + SUPPORTED_10baseT_Full | + SUPPORTED_100baseT_Half | + SUPPORTED_100baseT_Full | + SUPPORTED_TP | SUPPORTED_MII); + + if (cp->hw_running) { + cas_mif_poll(cp, 0); + bmcr = cas_phy_read(cp, MII_BMCR); + cas_read_mii_link_mode(cp, &full_duplex, + &speed, &pause); + cas_mif_poll(cp, 1); } - /* Record PHY settings if HW is on. */ - spin_lock_irqsave(&cp->lock, flags); - bmcr = 0; - linkstate = cp->lstate; - if (CAS_PHY_MII(cp->phy_type)) { - ecmd.port = PORT_MII; - ecmd.transceiver = (cp->cas_flags & CAS_FLAG_SATURN) ? - XCVR_INTERNAL : XCVR_EXTERNAL; - ecmd.phy_address = cp->phy_addr; - ecmd.advertising |= ADVERTISED_TP | ADVERTISED_MII | - ADVERTISED_10baseT_Half | - ADVERTISED_10baseT_Full | - ADVERTISED_100baseT_Half | - ADVERTISED_100baseT_Full; + } else { + cmd->port = PORT_FIBRE; + cmd->transceiver = XCVR_INTERNAL; + cmd->phy_address = 0; + cmd->supported |= SUPPORTED_FIBRE; + cmd->advertising |= ADVERTISED_FIBRE; - ecmd.supported |= - (SUPPORTED_10baseT_Half | - SUPPORTED_10baseT_Full | - SUPPORTED_100baseT_Half | - SUPPORTED_100baseT_Full | - SUPPORTED_TP | SUPPORTED_MII); - - if (cp->hw_running) { - cas_mif_poll(cp, 0); - bmcr = cas_phy_read(cp, MII_BMCR); - cas_read_mii_link_mode(cp, &full_duplex, - &speed, &pause); - cas_mif_poll(cp, 1); - } - - } else { - ecmd.port = PORT_FIBRE; - ecmd.transceiver = XCVR_INTERNAL; - ecmd.phy_address = 0; - ecmd.supported |= SUPPORTED_FIBRE; - ecmd.advertising |= ADVERTISED_FIBRE; - - if (cp->hw_running) { - /* pcs uses the same bits as mii */ - bmcr = readl(cp->regs + REG_PCS_MII_CTRL); - cas_read_pcs_link_mode(cp, &full_duplex, - &speed, &pause); - } + if (cp->hw_running) { + /* pcs uses the same bits as mii */ + bmcr = readl(cp->regs + REG_PCS_MII_CTRL); + cas_read_pcs_link_mode(cp, &full_duplex, + &speed, &pause); } - spin_unlock_irqrestore(&cp->lock, flags); + } + spin_unlock_irqrestore(&cp->lock, flags); - if (bmcr & BMCR_ANENABLE) { - ecmd.advertising |= ADVERTISED_Autoneg; - ecmd.autoneg = AUTONEG_ENABLE; - ecmd.speed = ((speed == 10) ? - SPEED_10 : - ((speed == 1000) ? - SPEED_1000 : SPEED_100)); - ecmd.duplex = full_duplex ? DUPLEX_FULL : DUPLEX_HALF; + if (bmcr & BMCR_ANENABLE) { + cmd->advertising |= ADVERTISED_Autoneg; + cmd->autoneg = AUTONEG_ENABLE; + cmd->speed = ((speed == 10) ? + SPEED_10 : + ((speed == 1000) ? + SPEED_1000 : SPEED_100)); + cmd->duplex = full_duplex ? DUPLEX_FULL : DUPLEX_HALF; + } else { + cmd->autoneg = AUTONEG_DISABLE; + cmd->speed = + (bmcr & CAS_BMCR_SPEED1000) ? + SPEED_1000 : + ((bmcr & BMCR_SPEED100) ? SPEED_100: + SPEED_10); + cmd->duplex = + (bmcr & BMCR_FULLDPLX) ? + DUPLEX_FULL : DUPLEX_HALF; + } + if (linkstate != link_up) { + /* Force these to "unknown" if the link is not up and + * autonogotiation in enabled. We can set the link + * speed to 0, but not cmd->duplex, + * because its legal values are 0 and 1. Ethtool will + * print the value reported in parentheses after the + * word "Unknown" for unrecognized values. + * + * If in forced mode, we report the speed and duplex + * settings that we configured. + */ + if (cp->link_cntl & BMCR_ANENABLE) { + cmd->speed = 0; + cmd->duplex = 0xff; } else { - ecmd.autoneg = AUTONEG_DISABLE; - ecmd.speed = - (bmcr & CAS_BMCR_SPEED1000) ? - SPEED_1000 : - ((bmcr & BMCR_SPEED100) ? SPEED_100: - SPEED_10); - ecmd.duplex = - (bmcr & BMCR_FULLDPLX) ? + cmd->speed = SPEED_10; + if (cp->link_cntl & BMCR_SPEED100) { + cmd->speed = SPEED_100; + } else if (cp->link_cntl & CAS_BMCR_SPEED1000) { + cmd->speed = SPEED_1000; + } + cmd->duplex = (cp->link_cntl & BMCR_FULLDPLX)? DUPLEX_FULL : DUPLEX_HALF; } - if (linkstate != link_up) { - /* Force these to "unknown" if the link is not up and - * autonogotiation in enabled. We can set the link - * speed to 0, but not ecmd.duplex, - * because its legal values are 0 and 1. Ethtool will - * print the value reported in parentheses after the - * word "Unknown" for unrecognized values. - * - * If in forced mode, we report the speed and duplex - * settings that we configured. - */ - if (cp->link_cntl & BMCR_ANENABLE) { - ecmd.speed = 0; - ecmd.duplex = 0xff; - } else { - ecmd.speed = SPEED_10; - if (cp->link_cntl & BMCR_SPEED100) { - ecmd.speed = SPEED_100; - } else if (cp->link_cntl & CAS_BMCR_SPEED1000) { - ecmd.speed = SPEED_1000; - } - ecmd.duplex = (cp->link_cntl & BMCR_FULLDPLX)? - DUPLEX_FULL : DUPLEX_HALF; - } - } - if (copy_to_user(ep_user, &ecmd, sizeof(ecmd))) - return -EFAULT; - return 0; - - case ETHTOOL_SSET: - if (!capable(CAP_NET_ADMIN)) - return -EPERM; - - /* Verify the settings we care about. */ - if (ecmd.autoneg != AUTONEG_ENABLE && - ecmd.autoneg != AUTONEG_DISABLE) - return -EINVAL; - - if (ecmd.autoneg == AUTONEG_DISABLE && - ((ecmd.speed != SPEED_1000 && - ecmd.speed != SPEED_100 && - ecmd.speed != SPEED_10) || - (ecmd.duplex != DUPLEX_HALF && - ecmd.duplex != DUPLEX_FULL))) - return -EINVAL; - - /* Apply settings and restart link process. */ - spin_lock_irqsave(&cp->lock, flags); - cas_begin_auto_negotiation(cp, &ecmd); - spin_unlock_irqrestore(&cp->lock, flags); - return 0; - - case ETHTOOL_NWAY_RST: - if ((cp->link_cntl & BMCR_ANENABLE) == 0) - return -EINVAL; - - /* Restart link process. */ - spin_lock_irqsave(&cp->lock, flags); - cas_begin_auto_negotiation(cp, NULL); - spin_unlock_irqrestore(&cp->lock, flags); - - return 0; - - case ETHTOOL_GWOL: - case ETHTOOL_SWOL: - break; /* doesn't exist */ - - /* get link status */ - case ETHTOOL_GLINK: { - struct ethtool_value edata = { .cmd = ETHTOOL_GLINK }; - - edata.data = (cp->lstate == link_up); - if (copy_to_user(ep_user, &edata, sizeof(edata))) - return -EFAULT; - return 0; } - - /* get message-level */ - case ETHTOOL_GMSGLVL: { - struct ethtool_value edata = { .cmd = ETHTOOL_GMSGLVL }; - - edata.data = cp->msg_enable; - if (copy_to_user(ep_user, &edata, sizeof(edata))) - return -EFAULT; - return 0; - } - - /* set message-level */ - case ETHTOOL_SMSGLVL: { - struct ethtool_value edata; - - if (!capable(CAP_NET_ADMIN)) { - return (-EPERM); - } - if (copy_from_user(&edata, ep_user, sizeof(edata))) - return -EFAULT; - cp->msg_enable = edata.data; - return 0; - } - - case ETHTOOL_GREGS: { - struct ethtool_regs edata; - u8 *ptr; - int len = cp->casreg_len < CAS_MAX_REGS ? - cp->casreg_len: CAS_MAX_REGS; - - if (copy_from_user(&edata, ep_user, sizeof (edata))) - return -EFAULT; - - if (edata.len > len) - edata.len = len; - edata.version = 0; - if (copy_to_user (ep_user, &edata, sizeof(edata))) - return -EFAULT; - - /* cas_get_regs handles locks (cp->lock). */ - ptr = cas_get_regs(cp); - if (ptr == NULL) - return -ENOMEM; - if (copy_to_user(ep_user + sizeof (edata), ptr, edata.len)) - return -EFAULT; - - kfree(ptr); - return (0); - } - case ETHTOOL_GSTRINGS: { - struct ethtool_gstrings edata; - int len; - - if (copy_from_user(&edata, ep_user, sizeof(edata))) - return -EFAULT; - - len = edata.len; - switch(edata.string_set) { - case ETH_SS_STATS: - edata.len = (len < CAS_NUM_STAT_KEYS) ? - len : CAS_NUM_STAT_KEYS; - if (copy_to_user(ep_user, &edata, sizeof(edata))) - return -EFAULT; - - if (copy_to_user(ep_user + sizeof(edata), - ðtool_cassini_statnames, - (edata.len * ETH_GSTRING_LEN))) - return -EFAULT; - return 0; - default: - return -EINVAL; - } - } - case ETHTOOL_GSTATS: { - int i = 0; - u64 *tmp; - struct ethtool_stats edata; - struct net_device_stats *stats; - int len; - - if (copy_from_user(&edata, ep_user, sizeof(edata))) - return -EFAULT; - - len = edata.n_stats; - stats = cas_get_stats(cp->dev); - edata.cmd = ETHTOOL_GSTATS; - edata.n_stats = (len < CAS_NUM_STAT_KEYS) ? - len : CAS_NUM_STAT_KEYS; - if (copy_to_user(ep_user, &edata, sizeof (edata))) - return -EFAULT; - - tmp = kmalloc(sizeof(u64)*CAS_NUM_STAT_KEYS, GFP_KERNEL); - if (tmp) { - tmp[i++] = stats->collisions; - tmp[i++] = stats->rx_bytes; - tmp[i++] = stats->rx_crc_errors; - tmp[i++] = stats->rx_dropped; - tmp[i++] = stats->rx_errors; - tmp[i++] = stats->rx_fifo_errors; - tmp[i++] = stats->rx_frame_errors; - tmp[i++] = stats->rx_length_errors; - tmp[i++] = stats->rx_over_errors; - tmp[i++] = stats->rx_packets; - tmp[i++] = stats->tx_aborted_errors; - tmp[i++] = stats->tx_bytes; - tmp[i++] = stats->tx_dropped; - tmp[i++] = stats->tx_errors; - tmp[i++] = stats->tx_fifo_errors; - tmp[i++] = stats->tx_packets; - BUG_ON(i != CAS_NUM_STAT_KEYS); - - i = copy_to_user(ep_user + sizeof(edata), - tmp, sizeof(u64)*edata.n_stats); - kfree(tmp); - } else { - return -ENOMEM; - } - if (i) - return -EFAULT; - return 0; - } - } - - return -EOPNOTSUPP; + return 0; } +static int cas_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) +{ + struct cas *cp = netdev_priv(dev); + unsigned long flags; + + /* Verify the settings we care about. */ + if (cmd->autoneg != AUTONEG_ENABLE && + cmd->autoneg != AUTONEG_DISABLE) + return -EINVAL; + + if (cmd->autoneg == AUTONEG_DISABLE && + ((cmd->speed != SPEED_1000 && + cmd->speed != SPEED_100 && + cmd->speed != SPEED_10) || + (cmd->duplex != DUPLEX_HALF && + cmd->duplex != DUPLEX_FULL))) + return -EINVAL; + + /* Apply settings and restart link process. */ + spin_lock_irqsave(&cp->lock, flags); + cas_begin_auto_negotiation(cp, cmd); + spin_unlock_irqrestore(&cp->lock, flags); + return 0; +} + +static int cas_nway_reset(struct net_device *dev) +{ + struct cas *cp = netdev_priv(dev); + unsigned long flags; + + if ((cp->link_cntl & BMCR_ANENABLE) == 0) + return -EINVAL; + + /* Restart link process. */ + spin_lock_irqsave(&cp->lock, flags); + cas_begin_auto_negotiation(cp, NULL); + spin_unlock_irqrestore(&cp->lock, flags); + + return 0; +} + +static u32 cas_get_link(struct net_device *dev) +{ + struct cas *cp = netdev_priv(dev); + return cp->lstate == link_up; +} + +static u32 cas_get_msglevel(struct net_device *dev) +{ + struct cas *cp = netdev_priv(dev); + return cp->msg_enable; +} + +static void cas_set_msglevel(struct net_device *dev, u32 value) +{ + struct cas *cp = netdev_priv(dev); + cp->msg_enable = value; +} + +static int cas_get_regs_len(struct net_device *dev) +{ + struct cas *cp = netdev_priv(dev); + return cp->casreg_len < CAS_MAX_REGS ? cp->casreg_len: CAS_MAX_REGS; +} + +static void cas_get_regs(struct net_device *dev, struct ethtool_regs *regs, + void *p) +{ + struct cas *cp = netdev_priv(dev); + regs->version = 0; + /* cas_read_regs handles locks (cp->lock). */ + cas_read_regs(cp, p, regs->len / sizeof(u32)); +} + +static int cas_get_stats_count(struct net_device *dev) +{ + return CAS_NUM_STAT_KEYS; +} + +static void cas_get_strings(struct net_device *dev, u32 stringset, u8 *data) +{ + memcpy(data, ðtool_cassini_statnames, + CAS_NUM_STAT_KEYS * ETH_GSTRING_LEN); +} + +static void cas_get_ethtool_stats(struct net_device *dev, + struct ethtool_stats *estats, u64 *data) +{ + struct cas *cp = netdev_priv(dev); + struct net_device_stats *stats = cas_get_stats(cp->dev); + int i = 0; + data[i++] = stats->collisions; + data[i++] = stats->rx_bytes; + data[i++] = stats->rx_crc_errors; + data[i++] = stats->rx_dropped; + data[i++] = stats->rx_errors; + data[i++] = stats->rx_fifo_errors; + data[i++] = stats->rx_frame_errors; + data[i++] = stats->rx_length_errors; + data[i++] = stats->rx_over_errors; + data[i++] = stats->rx_packets; + data[i++] = stats->tx_aborted_errors; + data[i++] = stats->tx_bytes; + data[i++] = stats->tx_dropped; + data[i++] = stats->tx_errors; + data[i++] = stats->tx_fifo_errors; + data[i++] = stats->tx_packets; + BUG_ON(i != CAS_NUM_STAT_KEYS); +} + +static struct ethtool_ops cas_ethtool_ops = { + .get_drvinfo = cas_get_drvinfo, + .get_settings = cas_get_settings, + .set_settings = cas_set_settings, + .nway_reset = cas_nway_reset, + .get_link = cas_get_link, + .get_msglevel = cas_get_msglevel, + .set_msglevel = cas_set_msglevel, + .get_regs_len = cas_get_regs_len, + .get_regs = cas_get_regs, + .get_stats_count = cas_get_stats_count, + .get_strings = cas_get_strings, + .get_ethtool_stats = cas_get_ethtool_stats, +}; + static int cas_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) { struct cas *cp = netdev_priv(dev); @@ -4883,10 +4812,6 @@ static int cas_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) */ down(&cp->pm_sem); switch (cmd) { - case SIOCETHTOOL: - rc = cas_ethtool_ioctl(dev, ifr->ifr_data); - break; - case SIOCGMIIPHY: /* Get address of MII PHY in use. */ data->phy_id = cp->phy_addr; /* Fallthrough... */ @@ -5112,6 +5037,7 @@ static int __devinit cas_init_one(struct pci_dev *pdev, dev->get_stats = cas_get_stats; dev->set_multicast_list = cas_set_multicast; dev->do_ioctl = cas_ioctl; + dev->ethtool_ops = &cas_ethtool_ops; dev->tx_timeout = cas_tx_timeout; dev->watchdog_timeo = CAS_TX_TIMEOUT; dev->change_mtu = cas_change_mtu; From 399de50bbbb2501a6db43daaa8a2dafbc9bcfe0c Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Mon, 3 Oct 2005 14:02:39 -0700 Subject: [PATCH 338/352] [TG3]: Refine AMD K8 write-reorder chipset test. Test for VIA K8T800 north bridge instead of AMD K8 HyperTransport bridge based on new information from Andi Kleen. The AMD HyperTransport interface is not responsible for PCI transactions and so the re-ordering is more likely done by the VIA north bridge. This code is subject to change if we get more information from AMD or VIA. PCI Express devices are excluded from doing the read flush since all chipsets in the write_reorder list are PCI chipsets. Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/tg3.c | 23 ++++++++++++----------- 1 file changed, 12 insertions(+), 11 deletions(-) diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index 25f85fb9df46..fee0e6e5ff1e 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -9284,8 +9284,8 @@ static int __devinit tg3_get_invariants(struct tg3 *tp) static struct pci_device_id write_reorder_chipsets[] = { { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C) }, - { PCI_DEVICE(PCI_VENDOR_ID_AMD, - PCI_DEVICE_ID_AMD_K8_NB) }, + { PCI_DEVICE(PCI_VENDOR_ID_VIA, + PCI_DEVICE_ID_VIA_8385_0) }, { }, }; u32 misc_ctrl_reg; @@ -9300,15 +9300,6 @@ static int __devinit tg3_get_invariants(struct tg3 *tp) tp->tg3_flags2 |= TG3_FLG2_SUN_570X; #endif - /* If we have an AMD 762 or K8 chipset, write - * reordering to the mailbox registers done by the host - * controller can cause major troubles. We read back from - * every mailbox register write to force the writes to be - * posted to the chip in order. - */ - if (pci_dev_present(write_reorder_chipsets)) - tp->tg3_flags |= TG3_FLAG_MBOX_WRITE_REORDER; - /* Force memory write invalidate off. If we leave it on, * then on 5700_BX chips we have to enable a workaround. * The workaround is to set the TG3PCI_DMA_RW_CTRL boundary @@ -9439,6 +9430,16 @@ static int __devinit tg3_get_invariants(struct tg3 *tp) if (pci_find_capability(tp->pdev, PCI_CAP_ID_EXP) != 0) tp->tg3_flags2 |= TG3_FLG2_PCI_EXPRESS; + /* If we have an AMD 762 or VIA K8T800 chipset, write + * reordering to the mailbox registers done by the host + * controller can cause major troubles. We read back from + * every mailbox register write to force the writes to be + * posted to the chip in order. + */ + if (pci_dev_present(write_reorder_chipsets) && + !(tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS)) + tp->tg3_flags |= TG3_FLAG_MBOX_WRITE_REORDER; + if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 && tp->pci_lat_timer < 64) { tp->pci_lat_timer = 64; From 81c3d5470ecc70564eb9209946730fe2be93ad06 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Mon, 3 Oct 2005 14:13:38 -0700 Subject: [PATCH 339/352] [INET]: speedup inet (tcp/dccp) lookups Arnaldo and I agreed it could be applied now, because I have other pending patches depending on this one (Thank you Arnaldo) (The other important patch moves skc_refcnt in a separate cache line, so that the SMP/NUMA performance doesnt suffer from cache line ping pongs) 1) First some performance data : -------------------------------- tcp_v4_rcv() wastes a *lot* of time in __inet_lookup_established() The most time critical code is : sk_for_each(sk, node, &head->chain) { if (INET_MATCH(sk, acookie, saddr, daddr, ports, dif)) goto hit; /* You sunk my battleship! */ } The sk_for_each() does use prefetch() hints but only the begining of "struct sock" is prefetched. As INET_MATCH first comparison uses inet_sk(__sk)->daddr, wich is far away from the begining of "struct sock", it has to bring into CPU cache cold cache line. Each iteration has to use at least 2 cache lines. This can be problematic if some chains are very long. 2) The goal ----------- The idea I had is to change things so that INET_MATCH() may return FALSE in 99% of cases only using the data already in the CPU cache, using one cache line per iteration. 3) Description of the patch --------------------------- Adds a new 'unsigned int skc_hash' field in 'struct sock_common', filling a 32 bits hole on 64 bits platform. struct sock_common { unsigned short skc_family; volatile unsigned char skc_state; unsigned char skc_reuse; int skc_bound_dev_if; struct hlist_node skc_node; struct hlist_node skc_bind_node; atomic_t skc_refcnt; + unsigned int skc_hash; struct proto *skc_prot; }; Store in this 32 bits field the full hash, not masked by (ehash_size - 1) Using this full hash as the first comparison done in INET_MATCH permits us immediatly skip the element without touching a second cache line in case of a miss. Suppress the sk_hashent/tw_hashent fields since skc_hash (aliased to sk_hash and tw_hash) already contains the slot number if we mask with (ehash_size - 1) File include/net/inet_hashtables.h 64 bits platforms : #define INET_MATCH(__sk, __hash, __cookie, __saddr, __daddr, __ports, __dif)\ (((__sk)->sk_hash == (__hash)) ((*((__u64 *)&(inet_sk(__sk)->daddr)))== (__cookie)) && \ ((*((__u32 *)&(inet_sk(__sk)->dport))) == (__ports)) && \ (!((__sk)->sk_bound_dev_if) || ((__sk)->sk_bound_dev_if == (__dif)))) 32bits platforms: #define TCP_IPV4_MATCH(__sk, __hash, __cookie, __saddr, __daddr, __ports, __dif)\ (((__sk)->sk_hash == (__hash)) && \ (inet_sk(__sk)->daddr == (__saddr)) && \ (inet_sk(__sk)->rcv_saddr == (__daddr)) && \ (!((__sk)->sk_bound_dev_if) || ((__sk)->sk_bound_dev_if == (__dif)))) - Adds a prefetch(head->chain.first) in __inet_lookup_established()/__tcp_v4_check_established() and __inet6_lookup_established()/__tcp_v6_check_established() and __dccp_v4_check_established() to bring into cache the first element of the list, before the {read|write}_lock(&head->lock); Signed-off-by: Eric Dumazet Acked-by: Arnaldo Carvalho de Melo Signed-off-by: David S. Miller --- include/linux/ipv6.h | 5 ++- include/linux/tc_ematch/tc_em_meta.h | 2 +- include/net/inet6_hashtables.h | 21 +++++---- include/net/inet_hashtables.h | 64 +++++++++++++++++----------- include/net/inet_timewait_sock.h | 2 +- include/net/sock.h | 5 ++- net/atm/common.c | 2 +- net/dccp/ipv4.c | 12 +++--- net/ipv4/inet_timewait_sock.c | 6 +-- net/ipv4/tcp_ipv4.c | 11 ++--- net/ipv6/tcp_ipv6.c | 18 ++++---- net/sched/em_meta.c | 6 +-- 12 files changed, 85 insertions(+), 69 deletions(-) diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h index bb6f88e14061..e0b922785d98 100644 --- a/include/linux/ipv6.h +++ b/include/linux/ipv6.h @@ -372,8 +372,9 @@ static inline struct raw6_sock *raw6_sk(const struct sock *sk) #define inet_v6_ipv6only(__sk) 0 #endif /* defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) */ -#define INET6_MATCH(__sk, __saddr, __daddr, __ports, __dif) \ - (((*((__u32 *)&(inet_sk(__sk)->dport))) == (__ports)) && \ +#define INET6_MATCH(__sk, __hash, __saddr, __daddr, __ports, __dif)\ + (((__sk)->sk_hash == (__hash)) && \ + ((*((__u32 *)&(inet_sk(__sk)->dport))) == (__ports)) && \ ((__sk)->sk_family == AF_INET6) && \ ipv6_addr_equal(&inet6_sk(__sk)->daddr, (__saddr)) && \ ipv6_addr_equal(&inet6_sk(__sk)->rcv_saddr, (__daddr)) && \ diff --git a/include/linux/tc_ematch/tc_em_meta.h b/include/linux/tc_ematch/tc_em_meta.h index 081b1ee8516e..e21937cf91d0 100644 --- a/include/linux/tc_ematch/tc_em_meta.h +++ b/include/linux/tc_ematch/tc_em_meta.h @@ -71,7 +71,7 @@ enum TCF_META_ID_SK_SNDBUF, TCF_META_ID_SK_ALLOCS, TCF_META_ID_SK_ROUTE_CAPS, - TCF_META_ID_SK_HASHENT, + TCF_META_ID_SK_HASH, TCF_META_ID_SK_LINGERTIME, TCF_META_ID_SK_ACK_BACKLOG, TCF_META_ID_SK_MAX_ACK_BACKLOG, diff --git a/include/net/inet6_hashtables.h b/include/net/inet6_hashtables.h index 03df3b157960..5a2beed5a770 100644 --- a/include/net/inet6_hashtables.h +++ b/include/net/inet6_hashtables.h @@ -26,19 +26,18 @@ struct inet_hashinfo; /* I have no idea if this is a good hash for v6 or not. -DaveM */ -static inline int inet6_ehashfn(const struct in6_addr *laddr, const u16 lport, - const struct in6_addr *faddr, const u16 fport, - const int ehash_size) +static inline unsigned int inet6_ehashfn(const struct in6_addr *laddr, const u16 lport, + const struct in6_addr *faddr, const u16 fport) { - int hashent = (lport ^ fport); + unsigned int hashent = (lport ^ fport); hashent ^= (laddr->s6_addr32[3] ^ faddr->s6_addr32[3]); hashent ^= hashent >> 16; hashent ^= hashent >> 8; - return (hashent & (ehash_size - 1)); + return hashent; } -static inline int inet6_sk_ehashfn(const struct sock *sk, const int ehash_size) +static inline int inet6_sk_ehashfn(const struct sock *sk) { const struct inet_sock *inet = inet_sk(sk); const struct ipv6_pinfo *np = inet6_sk(sk); @@ -46,7 +45,7 @@ static inline int inet6_sk_ehashfn(const struct sock *sk, const int ehash_size) const struct in6_addr *faddr = &np->daddr; const __u16 lport = inet->num; const __u16 fport = inet->dport; - return inet6_ehashfn(laddr, lport, faddr, fport, ehash_size); + return inet6_ehashfn(laddr, lport, faddr, fport); } /* @@ -69,14 +68,14 @@ static inline struct sock * /* Optimize here for direct hit, only listening connections can * have wildcards anyways. */ - const int hash = inet6_ehashfn(daddr, hnum, saddr, sport, - hashinfo->ehash_size); - struct inet_ehash_bucket *head = &hashinfo->ehash[hash]; + unsigned int hash = inet6_ehashfn(daddr, hnum, saddr, sport); + struct inet_ehash_bucket *head = inet_ehash_bucket(hashinfo, hash); + prefetch(head->chain.first); read_lock(&head->lock); sk_for_each(sk, node, &head->chain) { /* For IPV6 do the cheaper port and family tests first. */ - if (INET6_MATCH(sk, saddr, daddr, ports, dif)) + if (INET6_MATCH(sk, hash, saddr, daddr, ports, dif)) goto hit; /* You sunk my battleship! */ } /* Must check for a TIME_WAIT'er before going to listener hash. */ diff --git a/include/net/inet_hashtables.h b/include/net/inet_hashtables.h index 646b6ea7fe26..35f49e65e295 100644 --- a/include/net/inet_hashtables.h +++ b/include/net/inet_hashtables.h @@ -108,7 +108,7 @@ struct inet_hashinfo { struct inet_bind_hashbucket *bhash; int bhash_size; - int ehash_size; + unsigned int ehash_size; /* All sockets in TCP_LISTEN state will be in here. This is the only * table where wildcard'd TCP sockets can exist. Hash function here @@ -130,17 +130,16 @@ struct inet_hashinfo { int port_rover; }; -static inline int inet_ehashfn(const __u32 laddr, const __u16 lport, - const __u32 faddr, const __u16 fport, - const int ehash_size) +static inline unsigned int inet_ehashfn(const __u32 laddr, const __u16 lport, + const __u32 faddr, const __u16 fport) { - int h = (laddr ^ lport) ^ (faddr ^ fport); + unsigned int h = (laddr ^ lport) ^ (faddr ^ fport); h ^= h >> 16; h ^= h >> 8; - return h & (ehash_size - 1); + return h; } -static inline int inet_sk_ehashfn(const struct sock *sk, const int ehash_size) +static inline int inet_sk_ehashfn(const struct sock *sk) { const struct inet_sock *inet = inet_sk(sk); const __u32 laddr = inet->rcv_saddr; @@ -148,7 +147,14 @@ static inline int inet_sk_ehashfn(const struct sock *sk, const int ehash_size) const __u32 faddr = inet->daddr; const __u16 fport = inet->dport; - return inet_ehashfn(laddr, lport, faddr, fport, ehash_size); + return inet_ehashfn(laddr, lport, faddr, fport); +} + +static inline struct inet_ehash_bucket *inet_ehash_bucket( + struct inet_hashinfo *hashinfo, + unsigned int hash) +{ + return &hashinfo->ehash[hash & (hashinfo->ehash_size - 1)]; } extern struct inet_bind_bucket * @@ -235,9 +241,11 @@ static inline void __inet_hash(struct inet_hashinfo *hashinfo, lock = &hashinfo->lhash_lock; inet_listen_wlock(hashinfo); } else { - sk->sk_hashent = inet_sk_ehashfn(sk, hashinfo->ehash_size); - list = &hashinfo->ehash[sk->sk_hashent].chain; - lock = &hashinfo->ehash[sk->sk_hashent].lock; + struct inet_ehash_bucket *head; + sk->sk_hash = inet_sk_ehashfn(sk); + head = inet_ehash_bucket(hashinfo, sk->sk_hash); + list = &head->chain; + lock = &head->lock; write_lock(lock); } __sk_add_node(sk, list); @@ -268,9 +276,8 @@ static inline void inet_unhash(struct inet_hashinfo *hashinfo, struct sock *sk) inet_listen_wlock(hashinfo); lock = &hashinfo->lhash_lock; } else { - struct inet_ehash_bucket *head = &hashinfo->ehash[sk->sk_hashent]; - lock = &head->lock; - write_lock_bh(&head->lock); + lock = &inet_ehash_bucket(hashinfo, sk->sk_hash)->lock; + write_lock_bh(lock); } if (__sk_del_node_init(sk)) @@ -337,23 +344,27 @@ sherry_cache: #define INET_ADDR_COOKIE(__name, __saddr, __daddr) \ const __u64 __name = (((__u64)(__daddr)) << 32) | ((__u64)(__saddr)); #endif /* __BIG_ENDIAN */ -#define INET_MATCH(__sk, __cookie, __saddr, __daddr, __ports, __dif)\ - (((*((__u64 *)&(inet_sk(__sk)->daddr))) == (__cookie)) && \ +#define INET_MATCH(__sk, __hash, __cookie, __saddr, __daddr, __ports, __dif)\ + (((__sk)->sk_hash == (__hash)) && \ + ((*((__u64 *)&(inet_sk(__sk)->daddr))) == (__cookie)) && \ ((*((__u32 *)&(inet_sk(__sk)->dport))) == (__ports)) && \ (!((__sk)->sk_bound_dev_if) || ((__sk)->sk_bound_dev_if == (__dif)))) -#define INET_TW_MATCH(__sk, __cookie, __saddr, __daddr, __ports, __dif)\ - (((*((__u64 *)&(inet_twsk(__sk)->tw_daddr))) == (__cookie)) && \ +#define INET_TW_MATCH(__sk, __hash, __cookie, __saddr, __daddr, __ports, __dif)\ + (((__sk)->sk_hash == (__hash)) && \ + ((*((__u64 *)&(inet_twsk(__sk)->tw_daddr))) == (__cookie)) && \ ((*((__u32 *)&(inet_twsk(__sk)->tw_dport))) == (__ports)) && \ (!((__sk)->sk_bound_dev_if) || ((__sk)->sk_bound_dev_if == (__dif)))) #else /* 32-bit arch */ #define INET_ADDR_COOKIE(__name, __saddr, __daddr) -#define INET_MATCH(__sk, __cookie, __saddr, __daddr, __ports, __dif) \ - ((inet_sk(__sk)->daddr == (__saddr)) && \ +#define INET_MATCH(__sk, __hash, __cookie, __saddr, __daddr, __ports, __dif) \ + (((__sk)->sk_hash == (__hash)) && \ + (inet_sk(__sk)->daddr == (__saddr)) && \ (inet_sk(__sk)->rcv_saddr == (__daddr)) && \ ((*((__u32 *)&(inet_sk(__sk)->dport))) == (__ports)) && \ (!((__sk)->sk_bound_dev_if) || ((__sk)->sk_bound_dev_if == (__dif)))) -#define INET_TW_MATCH(__sk, __cookie, __saddr, __daddr, __ports, __dif) \ - ((inet_twsk(__sk)->tw_daddr == (__saddr)) && \ +#define INET_TW_MATCH(__sk, __hash,__cookie, __saddr, __daddr, __ports, __dif) \ + (((__sk)->sk_hash == (__hash)) && \ + (inet_twsk(__sk)->tw_daddr == (__saddr)) && \ (inet_twsk(__sk)->tw_rcv_saddr == (__daddr)) && \ ((*((__u32 *)&(inet_twsk(__sk)->tw_dport))) == (__ports)) && \ (!((__sk)->sk_bound_dev_if) || ((__sk)->sk_bound_dev_if == (__dif)))) @@ -378,18 +389,19 @@ static inline struct sock * /* Optimize here for direct hit, only listening connections can * have wildcards anyways. */ - const int hash = inet_ehashfn(daddr, hnum, saddr, sport, hashinfo->ehash_size); - struct inet_ehash_bucket *head = &hashinfo->ehash[hash]; + unsigned int hash = inet_ehashfn(daddr, hnum, saddr, sport); + struct inet_ehash_bucket *head = inet_ehash_bucket(hashinfo, hash); + prefetch(head->chain.first); read_lock(&head->lock); sk_for_each(sk, node, &head->chain) { - if (INET_MATCH(sk, acookie, saddr, daddr, ports, dif)) + if (INET_MATCH(sk, hash, acookie, saddr, daddr, ports, dif)) goto hit; /* You sunk my battleship! */ } /* Must check for a TIME_WAIT'er before going to listener hash. */ sk_for_each(sk, node, &(head + hashinfo->ehash_size)->chain) { - if (INET_TW_MATCH(sk, acookie, saddr, daddr, ports, dif)) + if (INET_TW_MATCH(sk, hash, acookie, saddr, daddr, ports, dif)) goto hit; } sk = NULL; diff --git a/include/net/inet_timewait_sock.h b/include/net/inet_timewait_sock.h index 3b070352e869..4ade56ef3a4d 100644 --- a/include/net/inet_timewait_sock.h +++ b/include/net/inet_timewait_sock.h @@ -112,6 +112,7 @@ struct inet_timewait_sock { #define tw_node __tw_common.skc_node #define tw_bind_node __tw_common.skc_bind_node #define tw_refcnt __tw_common.skc_refcnt +#define tw_hash __tw_common.skc_hash #define tw_prot __tw_common.skc_prot volatile unsigned char tw_substate; /* 3 bits hole, try to pack */ @@ -126,7 +127,6 @@ struct inet_timewait_sock { /* And these are ours. */ __u8 tw_ipv6only:1; /* 31 bits hole, try to pack */ - int tw_hashent; int tw_timeout; unsigned long tw_ttd; struct inet_bind_bucket *tw_tb; diff --git a/include/net/sock.h b/include/net/sock.h index 8c48fbecb7cf..b6440805c420 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -99,6 +99,7 @@ struct proto; * @skc_node: main hash linkage for various protocol lookup tables * @skc_bind_node: bind hash linkage for various protocol lookup tables * @skc_refcnt: reference count + * @skc_hash: hash value used with various protocol lookup tables * @skc_prot: protocol handlers inside a network family * * This is the minimal network layer representation of sockets, the header @@ -112,6 +113,7 @@ struct sock_common { struct hlist_node skc_node; struct hlist_node skc_bind_node; atomic_t skc_refcnt; + unsigned int skc_hash; struct proto *skc_prot; }; @@ -139,7 +141,6 @@ struct sock_common { * @sk_no_check: %SO_NO_CHECK setting, wether or not checkup packets * @sk_route_caps: route capabilities (e.g. %NETIF_F_TSO) * @sk_lingertime: %SO_LINGER l_linger setting - * @sk_hashent: hash entry in several tables (e.g. inet_hashinfo.ehash) * @sk_backlog: always used with the per-socket spinlock held * @sk_callback_lock: used with the callbacks in the end of this struct * @sk_error_queue: rarely used @@ -186,6 +187,7 @@ struct sock { #define sk_node __sk_common.skc_node #define sk_bind_node __sk_common.skc_bind_node #define sk_refcnt __sk_common.skc_refcnt +#define sk_hash __sk_common.skc_hash #define sk_prot __sk_common.skc_prot unsigned char sk_shutdown : 2, sk_no_check : 2, @@ -208,7 +210,6 @@ struct sock { unsigned int sk_allocation; int sk_sndbuf; int sk_route_caps; - int sk_hashent; unsigned long sk_flags; unsigned long sk_lingertime; /* diff --git a/net/atm/common.c b/net/atm/common.c index 801a5813ec60..63feea49fb13 100644 --- a/net/atm/common.c +++ b/net/atm/common.c @@ -46,7 +46,7 @@ static void __vcc_insert_socket(struct sock *sk) struct atm_vcc *vcc = atm_sk(sk); struct hlist_head *head = &vcc_hash[vcc->vci & (VCC_HTABLE_SIZE - 1)]; - sk->sk_hashent = vcc->vci & (VCC_HTABLE_SIZE - 1); + sk->sk_hash = vcc->vci & (VCC_HTABLE_SIZE - 1); sk_add_node(sk, head); } diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c index 40fe6afacde6..ae088d1347af 100644 --- a/net/dccp/ipv4.c +++ b/net/dccp/ipv4.c @@ -62,27 +62,27 @@ static int __dccp_v4_check_established(struct sock *sk, const __u16 lport, const int dif = sk->sk_bound_dev_if; INET_ADDR_COOKIE(acookie, saddr, daddr) const __u32 ports = INET_COMBINED_PORTS(inet->dport, lport); - const int hash = inet_ehashfn(daddr, lport, saddr, inet->dport, - dccp_hashinfo.ehash_size); - struct inet_ehash_bucket *head = &dccp_hashinfo.ehash[hash]; + unsigned int hash = inet_ehashfn(daddr, lport, saddr, inet->dport); + struct inet_ehash_bucket *head = inet_ehash_bucket(&dccp_hashinfo, hash); const struct sock *sk2; const struct hlist_node *node; struct inet_timewait_sock *tw; + prefetch(head->chain.first); write_lock(&head->lock); /* Check TIME-WAIT sockets first. */ sk_for_each(sk2, node, &(head + dccp_hashinfo.ehash_size)->chain) { tw = inet_twsk(sk2); - if (INET_TW_MATCH(sk2, acookie, saddr, daddr, ports, dif)) + if (INET_TW_MATCH(sk2, hash, acookie, saddr, daddr, ports, dif)) goto not_unique; } tw = NULL; /* And established part... */ sk_for_each(sk2, node, &head->chain) { - if (INET_MATCH(sk2, acookie, saddr, daddr, ports, dif)) + if (INET_MATCH(sk2, hash, acookie, saddr, daddr, ports, dif)) goto not_unique; } @@ -90,7 +90,7 @@ static int __dccp_v4_check_established(struct sock *sk, const __u16 lport, * in hash table socket with a funny identity. */ inet->num = lport; inet->sport = htons(lport); - sk->sk_hashent = hash; + sk->sk_hash = hash; BUG_TRAP(sk_unhashed(sk)); __sk_add_node(sk, &head->chain); sock_prot_inc_use(sk->sk_prot); diff --git a/net/ipv4/inet_timewait_sock.c b/net/ipv4/inet_timewait_sock.c index 4d1502a49852..f9076ef3a1a8 100644 --- a/net/ipv4/inet_timewait_sock.c +++ b/net/ipv4/inet_timewait_sock.c @@ -20,7 +20,7 @@ void __inet_twsk_kill(struct inet_timewait_sock *tw, struct inet_hashinfo *hashi struct inet_bind_hashbucket *bhead; struct inet_bind_bucket *tb; /* Unlink from established hashes. */ - struct inet_ehash_bucket *ehead = &hashinfo->ehash[tw->tw_hashent]; + struct inet_ehash_bucket *ehead = inet_ehash_bucket(hashinfo, tw->tw_hash); write_lock(&ehead->lock); if (hlist_unhashed(&tw->tw_node)) { @@ -60,7 +60,7 @@ void __inet_twsk_hashdance(struct inet_timewait_sock *tw, struct sock *sk, { const struct inet_sock *inet = inet_sk(sk); const struct inet_connection_sock *icsk = inet_csk(sk); - struct inet_ehash_bucket *ehead = &hashinfo->ehash[sk->sk_hashent]; + struct inet_ehash_bucket *ehead = inet_ehash_bucket(hashinfo, sk->sk_hash); struct inet_bind_hashbucket *bhead; /* Step 1: Put TW into bind hash. Original socket stays there too. Note, that any socket with inet->num != 0 MUST be bound in @@ -106,7 +106,7 @@ struct inet_timewait_sock *inet_twsk_alloc(const struct sock *sk, const int stat tw->tw_dport = inet->dport; tw->tw_family = sk->sk_family; tw->tw_reuse = sk->sk_reuse; - tw->tw_hashent = sk->sk_hashent; + tw->tw_hash = sk->sk_hash; tw->tw_ipv6only = 0; tw->tw_prot = sk->sk_prot_creator; atomic_set(&tw->tw_refcnt, 1); diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 13dfb391cdf1..c85819d8474b 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -130,19 +130,20 @@ static int __tcp_v4_check_established(struct sock *sk, __u16 lport, int dif = sk->sk_bound_dev_if; INET_ADDR_COOKIE(acookie, saddr, daddr) const __u32 ports = INET_COMBINED_PORTS(inet->dport, lport); - const int hash = inet_ehashfn(daddr, lport, saddr, inet->dport, tcp_hashinfo.ehash_size); - struct inet_ehash_bucket *head = &tcp_hashinfo.ehash[hash]; + unsigned int hash = inet_ehashfn(daddr, lport, saddr, inet->dport); + struct inet_ehash_bucket *head = inet_ehash_bucket(&tcp_hashinfo, hash); struct sock *sk2; const struct hlist_node *node; struct inet_timewait_sock *tw; + prefetch(head->chain.first); write_lock(&head->lock); /* Check TIME-WAIT sockets first. */ sk_for_each(sk2, node, &(head + tcp_hashinfo.ehash_size)->chain) { tw = inet_twsk(sk2); - if (INET_TW_MATCH(sk2, acookie, saddr, daddr, ports, dif)) { + if (INET_TW_MATCH(sk2, hash, acookie, saddr, daddr, ports, dif)) { const struct tcp_timewait_sock *tcptw = tcp_twsk(sk2); struct tcp_sock *tp = tcp_sk(sk); @@ -179,7 +180,7 @@ static int __tcp_v4_check_established(struct sock *sk, __u16 lport, /* And established part... */ sk_for_each(sk2, node, &head->chain) { - if (INET_MATCH(sk2, acookie, saddr, daddr, ports, dif)) + if (INET_MATCH(sk2, hash, acookie, saddr, daddr, ports, dif)) goto not_unique; } @@ -188,7 +189,7 @@ unique: * in hash table socket with a funny identity. */ inet->num = lport; inet->sport = htons(lport); - sk->sk_hashent = hash; + sk->sk_hash = hash; BUG_TRAP(sk_unhashed(sk)); __sk_add_node(sk, &head->chain); sock_prot_inc_use(sk->sk_prot); diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index 80643e6b346b..d693cb988b78 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -209,9 +209,11 @@ static __inline__ void __tcp_v6_hash(struct sock *sk) lock = &tcp_hashinfo.lhash_lock; inet_listen_wlock(&tcp_hashinfo); } else { - sk->sk_hashent = inet6_sk_ehashfn(sk, tcp_hashinfo.ehash_size); - list = &tcp_hashinfo.ehash[sk->sk_hashent].chain; - lock = &tcp_hashinfo.ehash[sk->sk_hashent].lock; + unsigned int hash; + sk->sk_hash = hash = inet6_sk_ehashfn(sk); + hash &= (tcp_hashinfo.ehash_size - 1); + list = &tcp_hashinfo.ehash[hash].chain; + lock = &tcp_hashinfo.ehash[hash].lock; write_lock(lock); } @@ -322,13 +324,13 @@ static int __tcp_v6_check_established(struct sock *sk, const __u16 lport, const struct in6_addr *saddr = &np->daddr; const int dif = sk->sk_bound_dev_if; const u32 ports = INET_COMBINED_PORTS(inet->dport, lport); - const int hash = inet6_ehashfn(daddr, inet->num, saddr, inet->dport, - tcp_hashinfo.ehash_size); - struct inet_ehash_bucket *head = &tcp_hashinfo.ehash[hash]; + unsigned int hash = inet6_ehashfn(daddr, inet->num, saddr, inet->dport); + struct inet_ehash_bucket *head = inet_ehash_bucket(&tcp_hashinfo, hash); struct sock *sk2; const struct hlist_node *node; struct inet_timewait_sock *tw; + prefetch(head->chain.first); write_lock(&head->lock); /* Check TIME-WAIT sockets first. */ @@ -365,14 +367,14 @@ static int __tcp_v6_check_established(struct sock *sk, const __u16 lport, /* And established part... */ sk_for_each(sk2, node, &head->chain) { - if (INET6_MATCH(sk2, saddr, daddr, ports, dif)) + if (INET6_MATCH(sk2, hash, saddr, daddr, ports, dif)) goto not_unique; } unique: BUG_TRAP(sk_unhashed(sk)); __sk_add_node(sk, &head->chain); - sk->sk_hashent = hash; + sk->sk_hash = hash; sock_prot_inc_use(sk->sk_prot); write_unlock(&head->lock); diff --git a/net/sched/em_meta.c b/net/sched/em_meta.c index 00eae5f9a01a..cf68a59fdc5a 100644 --- a/net/sched/em_meta.c +++ b/net/sched/em_meta.c @@ -393,10 +393,10 @@ META_COLLECTOR(int_sk_route_caps) dst->value = skb->sk->sk_route_caps; } -META_COLLECTOR(int_sk_hashent) +META_COLLECTOR(int_sk_hash) { SKIP_NONLOCAL(skb); - dst->value = skb->sk->sk_hashent; + dst->value = skb->sk->sk_hash; } META_COLLECTOR(int_sk_lingertime) @@ -515,7 +515,7 @@ static struct meta_ops __meta_ops[TCF_META_TYPE_MAX+1][TCF_META_ID_MAX+1] = { [META_ID(SK_FORWARD_ALLOCS)] = META_FUNC(int_sk_fwd_alloc), [META_ID(SK_ALLOCS)] = META_FUNC(int_sk_alloc), [META_ID(SK_ROUTE_CAPS)] = META_FUNC(int_sk_route_caps), - [META_ID(SK_HASHENT)] = META_FUNC(int_sk_hashent), + [META_ID(SK_HASH)] = META_FUNC(int_sk_hash), [META_ID(SK_LINGERTIME)] = META_FUNC(int_sk_lingertime), [META_ID(SK_ACK_BACKLOG)] = META_FUNC(int_sk_ack_bl), [META_ID(SK_MAX_ACK_BACKLOG)] = META_FUNC(int_sk_max_ack_bl), From 496a22b08fa326bf17c11eb900e0505aa9da3506 Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 3 Oct 2005 14:16:34 -0700 Subject: [PATCH 340/352] [NET]: Fix "sysctl_net.c:36: error: 'core_table' undeclared here" During the build for ARM machine type "fortunet", this error occurred: CC net/sysctl_net.o net/sysctl_net.c:36: error: 'core_table' undeclared here (not in a function) It appears that the following configuration settings cause this error due to a missing include: CONFIG_SYSCTL=y CONFIG_NET=y # CONFIG_INET is not set core_table appears to be declared in net/sock.h. if CONFIG_INET were defined, net/sock.h would have been included via: sysctl_net.c -> net/ip.h -> linux/ip.h -> net/sock.h so include it directly. Signed-off-by: Russell King Signed-off-by: David S. Miller --- net/sysctl_net.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/sysctl_net.c b/net/sysctl_net.c index c5241fcbb966..55538f6b60ff 100644 --- a/net/sysctl_net.c +++ b/net/sysctl_net.c @@ -16,6 +16,8 @@ #include #include +#include + #ifdef CONFIG_INET #include #endif From 444fc8fc3a1f926fa224655b8950bd853368c1a3 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Mon, 3 Oct 2005 14:18:10 -0700 Subject: [PATCH 341/352] [IPV4]: Fix "Proxy ARP seems broken" Meelis Roos wrote: > RK> My firewall setup relies on proxyarp working. However, with 2.6.14-rc3, > RK> it appears to be completely broken. The firewall is 212.18.232.186, > > Same here with some kernel between 14-rc2 and 14-rc3 - no reposnse to > ARP on a proxyarp gateway. Sorry, no exact revison and no more debugging > yet since it'a a production gateway. The breakage is caused by the change to use the CB area for flagging whether a packet has been queued due to proxy_delay. This area gets cleared every time arp_rcv gets called. Unfortunately packets delayed due to proxy_delay also go through arp_rcv when they are reprocessed. In fact, I can't think of a reason why delayed proxy packets should go through netfilter again at all. So the easiest solution is to bypass that and go straight to arp_process. This is essentially what would've happened before netfilter support was added to ARP. Signed-off-by: Herbert Xu Signed-off-by: David S. Miller --- net/ipv4/arp.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c index 8bf312bdea13..ec0e36893b01 100644 --- a/net/ipv4/arp.c +++ b/net/ipv4/arp.c @@ -697,12 +697,6 @@ void arp_send(int type, int ptype, u32 dest_ip, arp_xmit(skb); } -static void parp_redo(struct sk_buff *skb) -{ - nf_reset(skb); - arp_rcv(skb, skb->dev, NULL, skb->dev); -} - /* * Process an arp request. */ @@ -922,6 +916,11 @@ out: return 0; } +static void parp_redo(struct sk_buff *skb) +{ + arp_process(skb); +} + /* * Receive an arp request from the device layer. From f36d6ab182a5c68e92ea3e85821dde9d29bfe284 Mon Sep 17 00:00:00 2001 From: Yan Zheng Date: Mon, 3 Oct 2005 14:19:15 -0700 Subject: [PATCH 342/352] [IPV6]: Fix ipv6 fragment ID selection at slow path Signed-Off-By: Yan Zheng Signed-off-by: David S. Miller --- net/ipv6/ip6_output.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index 2f589f24c093..563b442ffab8 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -666,7 +666,7 @@ slow_path: */ fh->nexthdr = nexthdr; fh->reserved = 0; - if (frag_id) { + if (!frag_id) { ipv6_select_ident(skb, fh); frag_id = fh->identification; } else From a5e7c210fefd2454c757a3542e41063407ca7108 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Mon, 3 Oct 2005 14:21:58 -0700 Subject: [PATCH 343/352] [IPV6]: Fix leak added by udp connect dst caching fix. Based upon a patch from Mitsuru KANDA Signed-off-by: David S. Miller --- net/ipv6/udp.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index 6001948600f3..e4cad11f284a 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -852,10 +852,16 @@ do_append_data: else if (!corkreq) err = udp_v6_push_pending_frames(sk, up); - if (dst && connected) - ip6_dst_store(sk, dst, - ipv6_addr_equal(&fl->fl6_dst, &np->daddr) ? - &np->daddr : NULL); + if (dst) { + if (connected) { + ip6_dst_store(sk, dst, + ipv6_addr_equal(&fl->fl6_dst, &np->daddr) ? + &np->daddr : NULL); + } else { + dst_release(dst); + } + } + if (err > 0) err = np->recverr ? net_xmit_errno(err) : 0; release_sock(sk); From e5ed639913eea3e4783a550291775ab78dd84966 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Mon, 3 Oct 2005 14:35:55 -0700 Subject: [PATCH 344/352] [IPV4]: Replace __in_dev_get with __in_dev_get_rcu/rtnl The following patch renames __in_dev_get() to __in_dev_get_rtnl() and introduces __in_dev_get_rcu() to cover the second case. 1) RCU with refcnt should use in_dev_get(). 2) RCU without refcnt should use __in_dev_get_rcu(). 3) All others must hold RTNL and use __in_dev_get_rtnl(). There is one exception in net/ipv4/route.c which is in fact a pre-existing race condition. I've marked it as such so that we remember to fix it. This patch is based on suggestions and prior work by Suzanne Wood and Paul McKenney. Signed-off-by: Herbert Xu Signed-off-by: David S. Miller --- drivers/net/bonding/bond_main.c | 2 +- drivers/net/wan/sdlamain.c | 23 ++++++++++++-------- drivers/net/wan/syncppp.c | 2 +- drivers/net/wireless/strip.c | 4 ++-- drivers/parisc/led.c | 5 ++++- drivers/s390/net/qeth_main.c | 4 ++-- include/linux/inetdevice.h | 12 ++++++++-- net/atm/clip.c | 2 +- net/core/netpoll.c | 2 +- net/core/pktgen.c | 2 +- net/econet/af_econet.c | 2 +- net/ipv4/arp.c | 10 ++++----- net/ipv4/devinet.c | 22 +++++++++---------- net/ipv4/fib_frontend.c | 4 ++-- net/ipv4/fib_semantics.c | 4 ++-- net/ipv4/igmp.c | 2 +- net/ipv4/ip_gre.c | 4 ++-- net/ipv4/ipmr.c | 6 ++--- net/ipv4/netfilter/ip_conntrack_netbios_ns.c | 2 +- net/ipv4/netfilter/ipt_REDIRECT.c | 2 +- net/ipv4/route.c | 6 +++-- net/ipv6/addrconf.c | 2 +- net/irda/irlan/irlan_eth.c | 2 +- net/sctp/protocol.c | 2 +- 24 files changed, 73 insertions(+), 55 deletions(-) diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 6d00c3de1a83..bf81cd45e4d4 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -2776,7 +2776,7 @@ static u32 bond_glean_dev_ip(struct net_device *dev) return 0; rcu_read_lock(); - idev = __in_dev_get(dev); + idev = __in_dev_get_rcu(dev); if (!idev) goto out; diff --git a/drivers/net/wan/sdlamain.c b/drivers/net/wan/sdlamain.c index 74e151acef3e..7a8b22a7ea31 100644 --- a/drivers/net/wan/sdlamain.c +++ b/drivers/net/wan/sdlamain.c @@ -57,6 +57,7 @@ #include /* request_region(), release_region() */ #include /* WAN router definitions */ #include /* WANPIPE common user API definitions */ +#include #include #include /* phys_to_virt() */ @@ -1268,37 +1269,41 @@ unsigned long get_ip_address(struct net_device *dev, int option) struct in_ifaddr *ifaddr; struct in_device *in_dev; + unsigned long addr = 0; - if ((in_dev = __in_dev_get(dev)) == NULL){ - return 0; + rcu_read_lock(); + if ((in_dev = __in_dev_get_rcu(dev)) == NULL){ + goto out; } if ((ifaddr = in_dev->ifa_list)== NULL ){ - return 0; + goto out; } switch (option){ case WAN_LOCAL_IP: - return ifaddr->ifa_local; + addr = ifaddr->ifa_local; break; case WAN_POINTOPOINT_IP: - return ifaddr->ifa_address; + addr = ifaddr->ifa_address; break; case WAN_NETMASK_IP: - return ifaddr->ifa_mask; + addr = ifaddr->ifa_mask; break; case WAN_BROADCAST_IP: - return ifaddr->ifa_broadcast; + addr = ifaddr->ifa_broadcast; break; default: - return 0; + break; } - return 0; +out: + rcu_read_unlock(); + return addr; } void add_gateway(sdla_t *card, struct net_device *dev) diff --git a/drivers/net/wan/syncppp.c b/drivers/net/wan/syncppp.c index b56a7b516d24..a6d3b55013a5 100644 --- a/drivers/net/wan/syncppp.c +++ b/drivers/net/wan/syncppp.c @@ -769,7 +769,7 @@ static void sppp_cisco_input (struct sppp *sp, struct sk_buff *skb) u32 addr = 0, mask = ~0; /* FIXME: is the mask correct? */ #ifdef CONFIG_INET rcu_read_lock(); - if ((in_dev = __in_dev_get(dev)) != NULL) + if ((in_dev = __in_dev_get_rcu(dev)) != NULL) { for (ifa=in_dev->ifa_list; ifa != NULL; ifa=ifa->ifa_next) { diff --git a/drivers/net/wireless/strip.c b/drivers/net/wireless/strip.c index 4b0acae22b0d..7bc7fc823128 100644 --- a/drivers/net/wireless/strip.c +++ b/drivers/net/wireless/strip.c @@ -1352,7 +1352,7 @@ static unsigned char *strip_make_packet(unsigned char *buffer, struct in_device *in_dev; rcu_read_lock(); - in_dev = __in_dev_get(strip_info->dev); + in_dev = __in_dev_get_rcu(strip_info->dev); if (in_dev == NULL) { rcu_read_unlock(); return NULL; @@ -1508,7 +1508,7 @@ static void strip_send(struct strip *strip_info, struct sk_buff *skb) brd = addr = 0; rcu_read_lock(); - in_dev = __in_dev_get(strip_info->dev); + in_dev = __in_dev_get_rcu(strip_info->dev); if (in_dev) { if (in_dev->ifa_list) { brd = in_dev->ifa_list->ifa_broadcast; diff --git a/drivers/parisc/led.c b/drivers/parisc/led.c index e90fb72a6962..286902298e33 100644 --- a/drivers/parisc/led.c +++ b/drivers/parisc/led.c @@ -37,6 +37,7 @@ #include #include #include +#include #include #include #include @@ -358,9 +359,10 @@ static __inline__ int led_get_net_activity(void) /* we are running as tasklet, so locking dev_base * for reading should be OK */ read_lock(&dev_base_lock); + rcu_read_lock(); for (dev = dev_base; dev; dev = dev->next) { struct net_device_stats *stats; - struct in_device *in_dev = __in_dev_get(dev); + struct in_device *in_dev = __in_dev_get_rcu(dev); if (!in_dev || !in_dev->ifa_list) continue; if (LOOPBACK(in_dev->ifa_list->ifa_local)) @@ -371,6 +373,7 @@ static __inline__ int led_get_net_activity(void) rx_total += stats->rx_packets; tx_total += stats->tx_packets; } + rcu_read_unlock(); read_unlock(&dev_base_lock); retval = 0; diff --git a/drivers/s390/net/qeth_main.c b/drivers/s390/net/qeth_main.c index 86582cf1e19e..71de834ece1a 100644 --- a/drivers/s390/net/qeth_main.c +++ b/drivers/s390/net/qeth_main.c @@ -5200,7 +5200,7 @@ qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid) if (!card->vlangrp) return; rcu_read_lock(); - in_dev = __in_dev_get(card->vlangrp->vlan_devices[vid]); + in_dev = __in_dev_get_rcu(card->vlangrp->vlan_devices[vid]); if (!in_dev) goto out; for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) { @@ -7725,7 +7725,7 @@ qeth_arp_constructor(struct neighbour *neigh) goto out; rcu_read_lock(); - in_dev = rcu_dereference(__in_dev_get(dev)); + in_dev = __in_dev_get_rcu(dev); if (in_dev == NULL) { rcu_read_unlock(); return -EINVAL; diff --git a/include/linux/inetdevice.h b/include/linux/inetdevice.h index 7e1e15f934f3..fd7af86151b1 100644 --- a/include/linux/inetdevice.h +++ b/include/linux/inetdevice.h @@ -142,13 +142,21 @@ static __inline__ int bad_mask(u32 mask, u32 addr) #define endfor_ifa(in_dev) } +static inline struct in_device *__in_dev_get_rcu(const struct net_device *dev) +{ + struct in_device *in_dev = dev->ip_ptr; + if (in_dev) + in_dev = rcu_dereference(in_dev); + return in_dev; +} + static __inline__ struct in_device * in_dev_get(const struct net_device *dev) { struct in_device *in_dev; rcu_read_lock(); - in_dev = dev->ip_ptr; + in_dev = __in_dev_get_rcu(dev); if (in_dev) atomic_inc(&in_dev->refcnt); rcu_read_unlock(); @@ -156,7 +164,7 @@ in_dev_get(const struct net_device *dev) } static __inline__ struct in_device * -__in_dev_get(const struct net_device *dev) +__in_dev_get_rtnl(const struct net_device *dev) { return (struct in_device*)dev->ip_ptr; } diff --git a/net/atm/clip.c b/net/atm/clip.c index 28dab55a4387..4f54c9a5e84a 100644 --- a/net/atm/clip.c +++ b/net/atm/clip.c @@ -310,7 +310,7 @@ static int clip_constructor(struct neighbour *neigh) if (neigh->type != RTN_UNICAST) return -EINVAL; rcu_read_lock(); - in_dev = rcu_dereference(__in_dev_get(dev)); + in_dev = __in_dev_get_rcu(dev); if (!in_dev) { rcu_read_unlock(); return -EINVAL; diff --git a/net/core/netpoll.c b/net/core/netpoll.c index 5265dfd69928..802fe11efad0 100644 --- a/net/core/netpoll.c +++ b/net/core/netpoll.c @@ -703,7 +703,7 @@ int netpoll_setup(struct netpoll *np) if (!np->local_ip) { rcu_read_lock(); - in_dev = __in_dev_get(ndev); + in_dev = __in_dev_get_rcu(ndev); if (!in_dev || !in_dev->ifa_list) { rcu_read_unlock(); diff --git a/net/core/pktgen.c b/net/core/pktgen.c index b7f2d65a614f..44de070b6045 100644 --- a/net/core/pktgen.c +++ b/net/core/pktgen.c @@ -1667,7 +1667,7 @@ static void pktgen_setup_inject(struct pktgen_dev *pkt_dev) struct in_device *in_dev; rcu_read_lock(); - in_dev = __in_dev_get(pkt_dev->odev); + in_dev = __in_dev_get_rcu(pkt_dev->odev); if (in_dev) { if (in_dev->ifa_list) { pkt_dev->saddr_min = in_dev->ifa_list->ifa_address; diff --git a/net/econet/af_econet.c b/net/econet/af_econet.c index 4a62093eb343..34fdac51df96 100644 --- a/net/econet/af_econet.c +++ b/net/econet/af_econet.c @@ -406,7 +406,7 @@ static int econet_sendmsg(struct kiocb *iocb, struct socket *sock, unsigned long network = 0; rcu_read_lock(); - idev = __in_dev_get(dev); + idev = __in_dev_get_rcu(dev); if (idev) { if (idev->ifa_list) network = ntohl(idev->ifa_list->ifa_address) & diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c index ec0e36893b01..b425748f02d7 100644 --- a/net/ipv4/arp.c +++ b/net/ipv4/arp.c @@ -241,7 +241,7 @@ static int arp_constructor(struct neighbour *neigh) neigh->type = inet_addr_type(addr); rcu_read_lock(); - in_dev = rcu_dereference(__in_dev_get(dev)); + in_dev = __in_dev_get_rcu(dev); if (in_dev == NULL) { rcu_read_unlock(); return -EINVAL; @@ -989,8 +989,8 @@ static int arp_req_set(struct arpreq *r, struct net_device * dev) ipv4_devconf.proxy_arp = 1; return 0; } - if (__in_dev_get(dev)) { - __in_dev_get(dev)->cnf.proxy_arp = 1; + if (__in_dev_get_rtnl(dev)) { + __in_dev_get_rtnl(dev)->cnf.proxy_arp = 1; return 0; } return -ENXIO; @@ -1095,8 +1095,8 @@ static int arp_req_delete(struct arpreq *r, struct net_device * dev) ipv4_devconf.proxy_arp = 0; return 0; } - if (__in_dev_get(dev)) { - __in_dev_get(dev)->cnf.proxy_arp = 0; + if (__in_dev_get_rtnl(dev)) { + __in_dev_get_rtnl(dev)->cnf.proxy_arp = 0; return 0; } return -ENXIO; diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c index ba2895ae8151..74f2207e131a 100644 --- a/net/ipv4/devinet.c +++ b/net/ipv4/devinet.c @@ -351,7 +351,7 @@ static int inet_insert_ifa(struct in_ifaddr *ifa) static int inet_set_ifa(struct net_device *dev, struct in_ifaddr *ifa) { - struct in_device *in_dev = __in_dev_get(dev); + struct in_device *in_dev = __in_dev_get_rtnl(dev); ASSERT_RTNL(); @@ -449,7 +449,7 @@ static int inet_rtm_newaddr(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg goto out; rc = -ENOBUFS; - if ((in_dev = __in_dev_get(dev)) == NULL) { + if ((in_dev = __in_dev_get_rtnl(dev)) == NULL) { in_dev = inetdev_init(dev); if (!in_dev) goto out; @@ -584,7 +584,7 @@ int devinet_ioctl(unsigned int cmd, void __user *arg) if (colon) *colon = ':'; - if ((in_dev = __in_dev_get(dev)) != NULL) { + if ((in_dev = __in_dev_get_rtnl(dev)) != NULL) { if (tryaddrmatch) { /* Matthias Andree */ /* compare label and address (4.4BSD style) */ @@ -748,7 +748,7 @@ rarok: static int inet_gifconf(struct net_device *dev, char __user *buf, int len) { - struct in_device *in_dev = __in_dev_get(dev); + struct in_device *in_dev = __in_dev_get_rtnl(dev); struct in_ifaddr *ifa; struct ifreq ifr; int done = 0; @@ -791,7 +791,7 @@ u32 inet_select_addr(const struct net_device *dev, u32 dst, int scope) struct in_device *in_dev; rcu_read_lock(); - in_dev = __in_dev_get(dev); + in_dev = __in_dev_get_rcu(dev); if (!in_dev) goto no_in_dev; @@ -818,7 +818,7 @@ no_in_dev: read_lock(&dev_base_lock); rcu_read_lock(); for (dev = dev_base; dev; dev = dev->next) { - if ((in_dev = __in_dev_get(dev)) == NULL) + if ((in_dev = __in_dev_get_rcu(dev)) == NULL) continue; for_primary_ifa(in_dev) { @@ -887,7 +887,7 @@ u32 inet_confirm_addr(const struct net_device *dev, u32 dst, u32 local, int scop if (dev) { rcu_read_lock(); - if ((in_dev = __in_dev_get(dev))) + if ((in_dev = __in_dev_get_rcu(dev))) addr = confirm_addr_indev(in_dev, dst, local, scope); rcu_read_unlock(); @@ -897,7 +897,7 @@ u32 inet_confirm_addr(const struct net_device *dev, u32 dst, u32 local, int scop read_lock(&dev_base_lock); rcu_read_lock(); for (dev = dev_base; dev; dev = dev->next) { - if ((in_dev = __in_dev_get(dev))) { + if ((in_dev = __in_dev_get_rcu(dev))) { addr = confirm_addr_indev(in_dev, dst, local, scope); if (addr) break; @@ -957,7 +957,7 @@ static int inetdev_event(struct notifier_block *this, unsigned long event, void *ptr) { struct net_device *dev = ptr; - struct in_device *in_dev = __in_dev_get(dev); + struct in_device *in_dev = __in_dev_get_rtnl(dev); ASSERT_RTNL(); @@ -1078,7 +1078,7 @@ static int inet_dump_ifaddr(struct sk_buff *skb, struct netlink_callback *cb) if (idx > s_idx) s_ip_idx = 0; rcu_read_lock(); - if ((in_dev = __in_dev_get(dev)) == NULL) { + if ((in_dev = __in_dev_get_rcu(dev)) == NULL) { rcu_read_unlock(); continue; } @@ -1149,7 +1149,7 @@ void inet_forward_change(void) for (dev = dev_base; dev; dev = dev->next) { struct in_device *in_dev; rcu_read_lock(); - in_dev = __in_dev_get(dev); + in_dev = __in_dev_get_rcu(dev); if (in_dev) in_dev->cnf.forwarding = on; rcu_read_unlock(); diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c index 4e1379f71269..e61bc7177eb1 100644 --- a/net/ipv4/fib_frontend.c +++ b/net/ipv4/fib_frontend.c @@ -173,7 +173,7 @@ int fib_validate_source(u32 src, u32 dst, u8 tos, int oif, no_addr = rpf = 0; rcu_read_lock(); - in_dev = __in_dev_get(dev); + in_dev = __in_dev_get_rcu(dev); if (in_dev) { no_addr = in_dev->ifa_list == NULL; rpf = IN_DEV_RPFILTER(in_dev); @@ -607,7 +607,7 @@ static int fib_inetaddr_event(struct notifier_block *this, unsigned long event, static int fib_netdev_event(struct notifier_block *this, unsigned long event, void *ptr) { struct net_device *dev = ptr; - struct in_device *in_dev = __in_dev_get(dev); + struct in_device *in_dev = __in_dev_get_rtnl(dev); if (event == NETDEV_UNREGISTER) { fib_disable_ip(dev, 2); diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c index d41219e8037c..186f20c4a45e 100644 --- a/net/ipv4/fib_semantics.c +++ b/net/ipv4/fib_semantics.c @@ -1087,7 +1087,7 @@ fib_convert_rtentry(int cmd, struct nlmsghdr *nl, struct rtmsg *rtm, rta->rta_oif = &dev->ifindex; if (colon) { struct in_ifaddr *ifa; - struct in_device *in_dev = __in_dev_get(dev); + struct in_device *in_dev = __in_dev_get_rtnl(dev); if (!in_dev) return -ENODEV; *colon = ':'; @@ -1268,7 +1268,7 @@ int fib_sync_up(struct net_device *dev) } if (nh->nh_dev == NULL || !(nh->nh_dev->flags&IFF_UP)) continue; - if (nh->nh_dev != dev || __in_dev_get(dev) == NULL) + if (nh->nh_dev != dev || !__in_dev_get_rtnl(dev)) continue; alive++; spin_lock_bh(&fib_multipath_lock); diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c index 70c44e4c3ceb..8b6d3939e1e6 100644 --- a/net/ipv4/igmp.c +++ b/net/ipv4/igmp.c @@ -1323,7 +1323,7 @@ static struct in_device * ip_mc_find_dev(struct ip_mreqn *imr) } if (dev) { imr->imr_ifindex = dev->ifindex; - idev = __in_dev_get(dev); + idev = __in_dev_get_rtnl(dev); } return idev; } diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c index f0d5740d7e22..896ce3f8f53a 100644 --- a/net/ipv4/ip_gre.c +++ b/net/ipv4/ip_gre.c @@ -1104,10 +1104,10 @@ static int ipgre_open(struct net_device *dev) return -EADDRNOTAVAIL; dev = rt->u.dst.dev; ip_rt_put(rt); - if (__in_dev_get(dev) == NULL) + if (__in_dev_get_rtnl(dev) == NULL) return -EADDRNOTAVAIL; t->mlink = dev->ifindex; - ip_mc_inc_group(__in_dev_get(dev), t->parms.iph.daddr); + ip_mc_inc_group(__in_dev_get_rtnl(dev), t->parms.iph.daddr); } return 0; } diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c index 9dbf5909f3a6..302b7eb507c9 100644 --- a/net/ipv4/ipmr.c +++ b/net/ipv4/ipmr.c @@ -149,7 +149,7 @@ struct net_device *ipmr_new_tunnel(struct vifctl *v) if (err == 0 && (dev = __dev_get_by_name(p.name)) != NULL) { dev->flags |= IFF_MULTICAST; - in_dev = __in_dev_get(dev); + in_dev = __in_dev_get_rtnl(dev); if (in_dev == NULL && (in_dev = inetdev_init(dev)) == NULL) goto failure; in_dev->cnf.rp_filter = 0; @@ -278,7 +278,7 @@ static int vif_delete(int vifi) dev_set_allmulti(dev, -1); - if ((in_dev = __in_dev_get(dev)) != NULL) { + if ((in_dev = __in_dev_get_rtnl(dev)) != NULL) { in_dev->cnf.mc_forwarding--; ip_rt_multicast_event(in_dev); } @@ -421,7 +421,7 @@ static int vif_add(struct vifctl *vifc, int mrtsock) return -EINVAL; } - if ((in_dev = __in_dev_get(dev)) == NULL) + if ((in_dev = __in_dev_get_rtnl(dev)) == NULL) return -EADDRNOTAVAIL; in_dev->cnf.mc_forwarding++; dev_set_allmulti(dev, +1); diff --git a/net/ipv4/netfilter/ip_conntrack_netbios_ns.c b/net/ipv4/netfilter/ip_conntrack_netbios_ns.c index 577bac22dcc6..186646eb249f 100644 --- a/net/ipv4/netfilter/ip_conntrack_netbios_ns.c +++ b/net/ipv4/netfilter/ip_conntrack_netbios_ns.c @@ -58,7 +58,7 @@ static int help(struct sk_buff **pskb, goto out; rcu_read_lock(); - in_dev = __in_dev_get(rt->u.dst.dev); + in_dev = __in_dev_get_rcu(rt->u.dst.dev); if (in_dev != NULL) { for_primary_ifa(in_dev) { if (ifa->ifa_broadcast == iph->daddr) { diff --git a/net/ipv4/netfilter/ipt_REDIRECT.c b/net/ipv4/netfilter/ipt_REDIRECT.c index 715cb613405c..5245bfd33d52 100644 --- a/net/ipv4/netfilter/ipt_REDIRECT.c +++ b/net/ipv4/netfilter/ipt_REDIRECT.c @@ -93,7 +93,7 @@ redirect_target(struct sk_buff **pskb, newdst = 0; rcu_read_lock(); - indev = __in_dev_get((*pskb)->dev); + indev = __in_dev_get_rcu((*pskb)->dev); if (indev && (ifa = indev->ifa_list)) newdst = ifa->ifa_local; rcu_read_unlock(); diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 8549f26e2495..381dd6a6aebb 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -2128,7 +2128,7 @@ int ip_route_input(struct sk_buff *skb, u32 daddr, u32 saddr, struct in_device *in_dev; rcu_read_lock(); - if ((in_dev = __in_dev_get(dev)) != NULL) { + if ((in_dev = __in_dev_get_rcu(dev)) != NULL) { int our = ip_check_mc(in_dev, daddr, saddr, skb->nh.iph->protocol); if (our @@ -2443,7 +2443,9 @@ static int ip_route_output_slow(struct rtable **rp, const struct flowi *oldflp) err = -ENODEV; if (dev_out == NULL) goto out; - if (__in_dev_get(dev_out) == NULL) { + + /* RACE: Check return value of inet_select_addr instead. */ + if (__in_dev_get_rtnl(dev_out) == NULL) { dev_put(dev_out); goto out; /* Wrong error code */ } diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 4e509e52fbc1..a970b4727ce8 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -1806,7 +1806,7 @@ static void sit_add_v4_addrs(struct inet6_dev *idev) } for (dev = dev_base; dev != NULL; dev = dev->next) { - struct in_device * in_dev = __in_dev_get(dev); + struct in_device * in_dev = __in_dev_get_rtnl(dev); if (in_dev && (dev->flags & IFF_UP)) { struct in_ifaddr * ifa; diff --git a/net/irda/irlan/irlan_eth.c b/net/irda/irlan/irlan_eth.c index 071cd2cefd8a..953e255d2bc8 100644 --- a/net/irda/irlan/irlan_eth.c +++ b/net/irda/irlan/irlan_eth.c @@ -310,7 +310,7 @@ void irlan_eth_send_gratuitous_arp(struct net_device *dev) #ifdef CONFIG_INET IRDA_DEBUG(4, "IrLAN: Sending gratuitous ARP\n"); rcu_read_lock(); - in_dev = __in_dev_get(dev); + in_dev = __in_dev_get_rcu(dev); if (in_dev == NULL) goto out; if (in_dev->ifa_list) diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c index e7025be77691..f01d1c9002a1 100644 --- a/net/sctp/protocol.c +++ b/net/sctp/protocol.c @@ -147,7 +147,7 @@ static void sctp_v4_copy_addrlist(struct list_head *addrlist, struct sctp_sockaddr_entry *addr; rcu_read_lock(); - if ((in_dev = __in_dev_get(dev)) == NULL) { + if ((in_dev = __in_dev_get_rcu(dev)) == NULL) { rcu_read_unlock(); return; } From 3e56a40bb36f1f73b4eac2ffe267c5357811e321 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Mon, 3 Oct 2005 14:36:32 -0700 Subject: [PATCH 345/352] [IPV4]: Get rid of bogus __in_put_dev in pktgen This patch gets rid of a bogus __in_dev_put() in pktgen.c. This was spotted by Suzanne Wood. Signed-off-by: Herbert Xu Signed-off-by: David S. Miller --- net/core/pktgen.c | 1 - 1 file changed, 1 deletion(-) diff --git a/net/core/pktgen.c b/net/core/pktgen.c index 44de070b6045..5f043d346694 100644 --- a/net/core/pktgen.c +++ b/net/core/pktgen.c @@ -1673,7 +1673,6 @@ static void pktgen_setup_inject(struct pktgen_dev *pkt_dev) pkt_dev->saddr_min = in_dev->ifa_list->ifa_address; pkt_dev->saddr_max = pkt_dev->saddr_min; } - __in_dev_put(in_dev); } rcu_read_unlock(); } From 7ce312467edc270fcbd8a699efabb37ce1802b98 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Mon, 3 Oct 2005 16:07:30 -0700 Subject: [PATCH 346/352] [IPV4]: Update icmp sysctl docs and disable broadcast ECHO/TIMESTAMP by default It's not a good idea to be smurf'able by default. The few people who need this can turn it on. Signed-off-by: David S. Miller --- Documentation/networking/ip-sysctl.txt | 10 +++++++--- net/ipv4/icmp.c | 2 +- 2 files changed, 8 insertions(+), 4 deletions(-) diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt index ab65714d95fc..b433c8a27e2d 100644 --- a/Documentation/networking/ip-sysctl.txt +++ b/Documentation/networking/ip-sysctl.txt @@ -355,10 +355,14 @@ ip_dynaddr - BOOLEAN Default: 0 icmp_echo_ignore_all - BOOLEAN + If set non-zero, then the kernel will ignore all ICMP ECHO + requests sent to it. + Default: 0 + icmp_echo_ignore_broadcasts - BOOLEAN - If either is set to true, then the kernel will ignore either all - ICMP ECHO requests sent to it or just those to broadcast/multicast - addresses, respectively. + If set non-zero, then the kernel will ignore all ICMP ECHO and + TIMESTAMP requests sent to it via broadcast/multicast. + Default: 1 icmp_ratelimit - INTEGER Limit the maximal rates for sending ICMP packets whose type matches diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c index 24eb56ae1b5a..90dca711ac9f 100644 --- a/net/ipv4/icmp.c +++ b/net/ipv4/icmp.c @@ -188,7 +188,7 @@ struct icmp_err icmp_err_convert[] = { /* Control parameters for ECHO replies. */ int sysctl_icmp_echo_ignore_all; -int sysctl_icmp_echo_ignore_broadcasts; +int sysctl_icmp_echo_ignore_broadcasts = 1; /* Control parameter - ignore bogus broadcast responses? */ int sysctl_icmp_ignore_bogus_error_responses; From ed39f731ab2e77e58122232f6e27333331d7793d Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Mon, 3 Oct 2005 16:25:23 -0700 Subject: [PATCH 347/352] [TG3]: Update driver version and release date. Signed-off-by: David S. Miller --- drivers/net/tg3.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index fee0e6e5ff1e..1802c3b48799 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -67,8 +67,8 @@ #define DRV_MODULE_NAME "tg3" #define PFX DRV_MODULE_NAME ": " -#define DRV_MODULE_VERSION "3.41" -#define DRV_MODULE_RELDATE "September 27, 2005" +#define DRV_MODULE_VERSION "3.42" +#define DRV_MODULE_RELDATE "Oct 3, 2005" #define TG3_DEF_MAC_MODE 0 #define TG3_DEF_RX_MODE 0 From c2681dd8c71c8fb4ca530f94536550fcd843aae4 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Mon, 3 Oct 2005 12:03:13 -0700 Subject: [PATCH 348/352] [PATCH] skge: set mac address oops with bonding Skge driver was bringing link up/down when changing mac address. This doesn't work in the bonding environment, and is more effort than needed. Fixes-bug: http://bugzilla.kernel.org/show_bug.cgi?id=5271 Signed-off-by: Stephen Hemminger Signed-off-by: Jeff Garzik --- drivers/net/skge.c | 24 ++++++++++++++++-------- 1 file changed, 16 insertions(+), 8 deletions(-) diff --git a/drivers/net/skge.c b/drivers/net/skge.c index fd398da4993b..c2e6484ef138 100644 --- a/drivers/net/skge.c +++ b/drivers/net/skge.c @@ -2837,21 +2837,29 @@ static void skge_netpoll(struct net_device *dev) static int skge_set_mac_address(struct net_device *dev, void *p) { struct skge_port *skge = netdev_priv(dev); - struct sockaddr *addr = p; - int err = 0; + struct skge_hw *hw = skge->hw; + unsigned port = skge->port; + const struct sockaddr *addr = p; if (!is_valid_ether_addr(addr->sa_data)) return -EADDRNOTAVAIL; - skge_down(dev); + spin_lock_bh(&hw->phy_lock); memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN); - memcpy_toio(skge->hw->regs + B2_MAC_1 + skge->port*8, + memcpy_toio(hw->regs + B2_MAC_1 + port*8, dev->dev_addr, ETH_ALEN); - memcpy_toio(skge->hw->regs + B2_MAC_2 + skge->port*8, + memcpy_toio(hw->regs + B2_MAC_2 + port*8, dev->dev_addr, ETH_ALEN); - if (dev->flags & IFF_UP) - err = skge_up(dev); - return err; + + if (hw->chip_id == CHIP_ID_GENESIS) + xm_outaddr(hw, port, XM_SA, dev->dev_addr); + else { + gma_set_addr(hw, port, GM_SRC_ADDR_1L, dev->dev_addr); + gma_set_addr(hw, port, GM_SRC_ADDR_2L, dev->dev_addr); + } + spin_unlock_bh(&hw->phy_lock); + + return 0; } static const struct { From 0a1c80f1115b9a1aacf00a312a532ceef49dfa1b Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Sun, 2 Oct 2005 22:42:11 -0700 Subject: [PATCH 349/352] [PATCH] ns83820: fix gfp flags type Fix implicit nocast warnings in ns83820 code: drivers/net/ns83820.c:603:46: warning: implicit cast to nocast type Signed-off-by: Randy Dunlap Signed-off-by: Jeff Garzik --- drivers/net/ns83820.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ns83820.c b/drivers/net/ns83820.c index e64df4d0800b..1d123d2b53fd 100644 --- a/drivers/net/ns83820.c +++ b/drivers/net/ns83820.c @@ -584,7 +584,7 @@ static inline int ns83820_add_rx_skb(struct ns83820 *dev, struct sk_buff *skb) return 0; } -static inline int rx_refill(struct net_device *ndev, int gfp) +static inline int rx_refill(struct net_device *ndev, unsigned int gfp) { struct ns83820 *dev = PRIV(ndev); unsigned i; From 8cb6108baee9dcd1dc96f476fe217d6a6b53c994 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Sun, 2 Oct 2005 22:41:09 -0700 Subject: [PATCH 350/352] [PATCH] ieee80211: fix gfp flags type Fix implicit nocast warnings in ieee80211 code: net/ieee80211/ieee80211_tx.c:215:9: warning: implicit cast to nocast type Signed-off-by: Randy Dunlap Signed-off-by: Jeff Garzik --- net/ieee80211/ieee80211_tx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ieee80211/ieee80211_tx.c b/net/ieee80211/ieee80211_tx.c index c9aaff3fea1e..f9153671168e 100644 --- a/net/ieee80211/ieee80211_tx.c +++ b/net/ieee80211/ieee80211_tx.c @@ -207,7 +207,7 @@ void ieee80211_txb_free(struct ieee80211_txb *txb) } static struct ieee80211_txb *ieee80211_alloc_txb(int nr_frags, int txb_size, - int gfp_mask) + unsigned int gfp_mask) { struct ieee80211_txb *txb; int i; From bb53d6d0e70cd0749a7844efc62cefeb24b134b6 Mon Sep 17 00:00:00 2001 From: Komuro Date: Mon, 3 Oct 2005 22:03:28 -0400 Subject: [PATCH 351/352] [netdrvr] fix smc91c92_cs multicast bug The smc91c92_cs multicast does not work if the count of multicast address is 1. Signed-off-by: Signed-off-by: Jeff Garzik --- drivers/net/pcmcia/smc91c92_cs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/pcmcia/smc91c92_cs.c b/drivers/net/pcmcia/smc91c92_cs.c index d652e1eddb45..c7cca842e5ee 100644 --- a/drivers/net/pcmcia/smc91c92_cs.c +++ b/drivers/net/pcmcia/smc91c92_cs.c @@ -1832,7 +1832,7 @@ static void fill_multicast_tbl(int count, struct dev_mc_list *addrs, { struct dev_mc_list *mc_addr; - for (mc_addr = addrs; mc_addr && --count > 0; mc_addr = mc_addr->next) { + for (mc_addr = addrs; mc_addr && count-- > 0; mc_addr = mc_addr->next) { u_int position = ether_crc(6, mc_addr->dmi_addr); #ifndef final_version /* Verify multicast address. */ if ((mc_addr->dmi_addr[0] & 1) == 0) From 9123e0d78990246304fe681167b8d8097f1e02d7 Mon Sep 17 00:00:00 2001 From: Ursula Braun Date: Fri, 30 Sep 2005 10:17:24 +0200 Subject: [PATCH 352/352] [PATCH] s390: qeth driver fixes From: Peter Tiedemann From: Frank Pavlic minor qeth fixes: - free old skb in qeth_realloc_headroom after duplicating skb - disable IPV6 support for Hipersockets devices - call ccw_device_set_offline on every channel regardless of the return value of the prior ccw_device_set_offline calls - allocate qdio structures in DMA-area - schedule recovery of appropriate card when cable has been inserted again. - add missing initialization of card->lock - write sequence number in skb->cb for SNA protocol which requires strictly serialized packets. Signed-off-by: Frank Pavlic diffstat: qeth.h | 2 ++ qeth_main.c | 37 +++++++++++++++++-------------------- 2 files changed, 19 insertions(+), 20 deletions(-) Signed-off-by: Jeff Garzik --- drivers/s390/net/qeth.h | 2 ++ drivers/s390/net/qeth_main.c | 37 +++++++++++++++++------------------- 2 files changed, 19 insertions(+), 20 deletions(-) diff --git a/drivers/s390/net/qeth.h b/drivers/s390/net/qeth.h index 2ad4797ce024..9963479ba89f 100644 --- a/drivers/s390/net/qeth.h +++ b/drivers/s390/net/qeth.h @@ -686,6 +686,7 @@ struct qeth_seqno { __u32 pdu_hdr; __u32 pdu_hdr_ack; __u16 ipa; + __u32 pkt_seqno; }; struct qeth_reply { @@ -848,6 +849,7 @@ qeth_realloc_headroom(struct qeth_card *card, struct sk_buff **skb, int size) "on interface %s", QETH_CARD_IFNAME(card)); return -ENOMEM; } + kfree_skb(*skb); *skb = new_skb; } return 0; diff --git a/drivers/s390/net/qeth_main.c b/drivers/s390/net/qeth_main.c index 71de834ece1a..bd28e2438d7f 100644 --- a/drivers/s390/net/qeth_main.c +++ b/drivers/s390/net/qeth_main.c @@ -511,7 +511,7 @@ static int __qeth_set_offline(struct ccwgroup_device *cgdev, int recovery_mode) { struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data; - int rc = 0; + int rc = 0, rc2 = 0, rc3 = 0; enum qeth_card_states recover_flag; QETH_DBF_TEXT(setup, 3, "setoffl"); @@ -523,11 +523,13 @@ __qeth_set_offline(struct ccwgroup_device *cgdev, int recovery_mode) CARD_BUS_ID(card)); return -ERESTARTSYS; } - if ((rc = ccw_device_set_offline(CARD_DDEV(card))) || - (rc = ccw_device_set_offline(CARD_WDEV(card))) || - (rc = ccw_device_set_offline(CARD_RDEV(card)))) { + rc = ccw_device_set_offline(CARD_DDEV(card)); + rc2 = ccw_device_set_offline(CARD_WDEV(card)); + rc3 = ccw_device_set_offline(CARD_RDEV(card)); + if (!rc) + rc = (rc2) ? rc2 : rc3; + if (rc) QETH_DBF_TEXT_(setup, 2, "1err%d", rc); - } if (recover_flag == CARD_STATE_UP) card->state = CARD_STATE_RECOVER; qeth_notify_processes(); @@ -1046,6 +1048,7 @@ qeth_setup_card(struct qeth_card *card) spin_lock_init(&card->vlanlock); card->vlangrp = NULL; #endif + spin_lock_init(&card->lock); spin_lock_init(&card->ip_lock); spin_lock_init(&card->thread_mask_lock); card->thread_start_mask = 0; @@ -1626,16 +1629,6 @@ qeth_cmd_timeout(unsigned long data) spin_unlock_irqrestore(&reply->card->lock, flags); } -static void -qeth_reset_ip_addresses(struct qeth_card *card) -{ - QETH_DBF_TEXT(trace, 2, "rstipadd"); - - qeth_clear_ip_list(card, 0, 1); - /* this function will also schedule the SET_IP_THREAD */ - qeth_set_multicast_list(card->dev); -} - static struct qeth_ipa_cmd * qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob) { @@ -1664,9 +1657,8 @@ qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob) "IP address reset.\n", QETH_CARD_IFNAME(card), card->info.chpid); - card->lan_online = 1; netif_carrier_on(card->dev); - qeth_reset_ip_addresses(card); + qeth_schedule_recovery(card); return NULL; case IPA_CMD_REGISTER_LOCAL_ADDR: QETH_DBF_TEXT(trace,3, "irla"); @@ -2387,6 +2379,7 @@ qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb, skb_pull(skb, VLAN_HLEN); } #endif + *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno; return vlan_id; } @@ -3014,7 +3007,7 @@ qeth_alloc_buffer_pool(struct qeth_card *card) return -ENOMEM; } for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){ - ptr = (void *) __get_free_page(GFP_KERNEL); + ptr = (void *) __get_free_page(GFP_KERNEL|GFP_DMA); if (!ptr) { while (j > 0) free_page((unsigned long) @@ -3058,7 +3051,8 @@ qeth_alloc_qdio_buffers(struct qeth_card *card) if (card->qdio.state == QETH_QDIO_ALLOCATED) return 0; - card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q), GFP_KERNEL); + card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q), + GFP_KERNEL|GFP_DMA); if (!card->qdio.in_q) return - ENOMEM; QETH_DBF_TEXT(setup, 2, "inq"); @@ -3083,7 +3077,7 @@ qeth_alloc_qdio_buffers(struct qeth_card *card) } for (i = 0; i < card->qdio.no_out_queues; ++i){ card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q), - GFP_KERNEL); + GFP_KERNEL|GFP_DMA); if (!card->qdio.out_qs[i]){ while (i > 0) kfree(card->qdio.out_qs[--i]); @@ -6470,6 +6464,9 @@ qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply, if (cmd->hdr.prot_version == QETH_PROT_IPV4) { card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported; card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled; + /* Disable IPV6 support hard coded for Hipersockets */ + if(card->info.type == QETH_CARD_TYPE_IQD) + card->options.ipa4.supported_funcs &= ~IPA_IPV6; } else { #ifdef CONFIG_QETH_IPV6 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;