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OpenCloudOS-Kernel/drivers/scsi/3w-xxxx.c

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Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/*
3w-xxxx.c -- 3ware Storage Controller device driver for Linux.
scsi: Update 3ware driver email addresses This change updates the 3ware drivers (3w-xxxx, 3w-9xxx, 3w-sas) email addresses from linuxraid@lsi.com to aradford@gmail.com, since the old email address doesn't exist. This patch was updated to remove www.lsi.com text. [mkp: applied by hand] Signed-off-by: Adam Radford <aradford@gmail.com> Acked-by: Sumit Saxena <sumit.saxena@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-12-10 03:08:05 +08:00
Written By: Adam Radford <aradford@gmail.com>
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
Modifications By: Joel Jacobson <linux@3ware.com>
Arnaldo Carvalho de Melo <acme@conectiva.com.br>
Brad Strand <linux@3ware.com>
[SCSI] 3w-xxxx, 3w-9xxx: force 60 second timeout This small patch forces 60 second timeouts for the older 3w-xxxx & 3w-9xxx drivers for systems that don't contain the udev rule for setting scsi timeouts to 60 seconds. Signed-off-by: Adam Radford <aradford@gmail.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-03-09 04:37:46 +08:00
Copyright (C) 1999-2010 3ware Inc.
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
tree-wide: fix a very frequent spelling mistake something-bility is spelled as something-blity so a grep for 'blit' would find these lines this is so trivial that I didn't split it by subsystem / copy additional maintainers - all changes are to comments The only purpose is to get fewer false positives when grepping around the kernel sources. Signed-off-by: Dirk Hohndel <hohndel@infradead.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-09-29 09:43:57 +08:00
Kernel compatibility By: Andre Hedrick <andre@suse.com>
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
Non-Copyright (C) 2000 Andre Hedrick <andre@suse.com>
Further tiny build fixes and trivial hoovering Alan Cox
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; version 2 of the License.
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.
NO WARRANTY
THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
solely responsible for determining the appropriateness of using and
distributing the Program and assumes all risks associated with its
exercise of rights under this Agreement, including but not limited to
the risks and costs of program errors, damage to or loss of data,
programs or equipment, and unavailability or interruption of operations.
DISCLAIMER OF LIABILITY
NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
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
Bugs/Comments/Suggestions should be mailed to:
scsi: Update 3ware driver email addresses This change updates the 3ware drivers (3w-xxxx, 3w-9xxx, 3w-sas) email addresses from linuxraid@lsi.com to aradford@gmail.com, since the old email address doesn't exist. This patch was updated to remove www.lsi.com text. [mkp: applied by hand] Signed-off-by: Adam Radford <aradford@gmail.com> Acked-by: Sumit Saxena <sumit.saxena@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-12-10 03:08:05 +08:00
aradford@gmail.com
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
History
-------
0.1.000 - Initial release.
0.4.000 - Added support for Asynchronous Event Notification through
ioctls for 3DM.
1.0.000 - Added DPO & FUA bit support for WRITE_10 & WRITE_6 cdb
to disable drive write-cache before writes.
1.1.000 - Fixed performance bug with DPO & FUA not existing for WRITE_6.
1.2.000 - Added support for clean shutdown notification/feature table.
1.02.00.001 - Added support for full command packet posts through ioctls
for 3DM.
Bug fix so hot spare drives don't show up.
1.02.00.002 - Fix bug with tw_setfeature() call that caused oops on some
systems.
08/21/00 - release previously allocated resources on failure at
tw_allocate_memory (acme)
1.02.00.003 - Fix tw_interrupt() to report error to scsi layer when
controller status is non-zero.
Added handling of request_sense opcode.
Fix possible null pointer dereference in
tw_reset_device_extension()
1.02.00.004 - Add support for device id of 3ware 7000 series controllers.
Make tw_setfeature() call with interrupts disabled.
Register interrupt handler before enabling interrupts.
Clear attention interrupt before draining aen queue.
1.02.00.005 - Allocate bounce buffers and custom queue depth for raid5 for
6000 and 5000 series controllers.
Reduce polling mdelays causing problems on some systems.
Fix use_sg = 1 calculation bug.
Check for scsi_register returning NULL.
Add aen count to /proc/scsi/3w-xxxx.
Remove aen code unit masking in tw_aen_complete().
1.02.00.006 - Remove unit from printk in tw_scsi_eh_abort(), causing
possible oops.
Fix possible null pointer dereference in tw_scsi_queue()
if done function pointer was invalid.
1.02.00.007 - Fix possible null pointer dereferences in tw_ioctl().
Remove check for invalid done function pointer from
tw_scsi_queue().
1.02.00.008 - Set max sectors per io to TW_MAX_SECTORS in tw_findcards().
Add tw_decode_error() for printing readable error messages.
Print some useful information on certain aen codes.
Add tw_decode_bits() for interpreting status register output.
Make scsi_set_pci_device() for kernels >= 2.4.4
Fix bug where aen's could be lost before a reset.
Re-add spinlocks in tw_scsi_detect().
Fix possible null pointer dereference in tw_aen_drain_queue()
during initialization.
Clear pci parity errors during initialization and during io.
1.02.00.009 - Remove redundant increment in tw_state_request_start().
Add ioctl support for direct ATA command passthru.
Add entire aen code string list.
1.02.00.010 - Cleanup queueing code, fix jbod thoughput.
Fix get_param for specific units.
1.02.00.011 - Fix bug in tw_aen_complete() where aen's could be lost.
Fix tw_aen_drain_queue() to display useful info at init.
Set tw_host->max_id for 12 port cards.
Add ioctl support for raw command packet post from userspace
with sglist fragments (parameter and io).
1.02.00.012 - Fix read capacity to under report by 1 sector to fix get
last sector ioctl.
1.02.00.013 - Fix bug where more AEN codes weren't coming out during
driver initialization.
Improved handling of PCI aborts.
1.02.00.014 - Fix bug in tw_findcards() where AEN code could be lost.
Increase timeout in tw_aen_drain_queue() to 30 seconds.
1.02.00.015 - Re-write raw command post with data ioctl method.
Remove raid5 bounce buffers for raid5 for 6XXX for kernel 2.5
Add tw_map/unmap_scsi_sg/single_data() for kernel 2.5
Replace io_request_lock with host_lock for kernel 2.5
Set max_cmd_len to 16 for 3dm for kernel 2.5
1.02.00.016 - Set host->max_sectors back up to 256.
1.02.00.017 - Modified pci parity error handling/clearing from config space
during initialization.
1.02.00.018 - Better handling of request sense opcode and sense information
for failed commands. Add tw_decode_sense().
Replace all mdelay()'s with scsi_sleep().
1.02.00.019 - Revert mdelay's and scsi_sleep's, this caused problems on
some SMP systems.
1.02.00.020 - Add pci_set_dma_mask(), rewrite kmalloc()/virt_to_bus() to
pci_alloc/free_consistent().
Better alignment checking in tw_allocate_memory().
Cleanup tw_initialize_device_extension().
1.02.00.021 - Bump cmd_per_lun in SHT to 255 for better jbod performance.
Improve handling of errors in tw_interrupt().
Add handling/clearing of controller queue error.
Empty stale responses before draining aen queue.
Fix tw_scsi_eh_abort() to not reset on every io abort.
Set can_queue in SHT to 255 to prevent hang from AEN.
1.02.00.022 - Fix possible null pointer dereference in tw_scsi_release().
1.02.00.023 - Fix bug in tw_aen_drain_queue() where unit # was always zero.
1.02.00.024 - Add severity levels to AEN strings.
1.02.00.025 - Fix command interrupt spurious error messages.
Fix bug in raw command post with data ioctl method.
Fix bug where rollcall sometimes failed with cable errors.
Print unit # on all command timeouts.
1.02.00.026 - Fix possible infinite retry bug with power glitch induced
drive timeouts.
Cleanup some AEN severity levels.
1.02.00.027 - Add drive not supported AEN code for SATA controllers.
Remove spurious unknown ioctl error message.
1.02.00.028 - Fix bug where multiple controllers with no units were the
same card number.
Fix bug where cards were being shut down more than once.
1.02.00.029 - Add missing pci_free_consistent() in tw_allocate_memory().
Replace pci_map_single() with pci_map_page() for highmem.
Check for tw_setfeature() failure.
1.02.00.030 - Make driver 64-bit clean.
1.02.00.031 - Cleanup polling timeouts/routines in several places.
Add support for mode sense opcode.
Add support for cache mode page.
Add support for synchronize cache opcode.
1.02.00.032 - Fix small multicard rollcall bug.
Make driver stay loaded with no units for hot add/swap.
Add support for "twe" character device for ioctls.
Clean up request_id queueing code.
Fix tw_scsi_queue() spinlocks.
1.02.00.033 - Fix tw_aen_complete() to not queue 'queue empty' AEN's.
Initialize queues correctly when loading with no valid units.
1.02.00.034 - Fix tw_decode_bits() to handle multiple errors.
Add support for user configurable cmd_per_lun.
Add support for sht->slave_configure().
1.02.00.035 - Improve tw_allocate_memory() memory allocation.
Fix tw_chrdev_ioctl() to sleep correctly.
1.02.00.036 - Increase character ioctl timeout to 60 seconds.
1.02.00.037 - Fix tw_ioctl() to handle all non-data ATA passthru cmds
for 'smartmontools' support.
1.26.00.038 - Roll driver minor version to 26 to denote kernel 2.6.
Add support for cmds_per_lun module parameter.
1.26.00.039 - Fix bug in tw_chrdev_ioctl() polling code.
Fix data_buffer_length usage in tw_chrdev_ioctl().
Update contact information.
1.26.02.000 - Convert driver to pci_driver format.
1.26.02.001 - Increase max ioctl buffer size to 512 sectors.
Make tw_scsi_queue() return 0 for 'Unknown scsi opcode'.
Fix tw_remove() to free irq handler/unregister_chrdev()
before shutting down card.
Change to new 'change_queue_depth' api.
Fix 'handled=1' ISR usage, remove bogus IRQ check.
[SCSI] 3ware 8000 serialize reset code The attached patch updates the 3ware 8000 driver: - Free irq handler in __tw_shutdown(). - Turn on RCD bit for caching mode page. - Serialize reset code. Signed-off-by: Adam Radford <linuxraid@amcc.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-01-05 10:16:56 +08:00
1.26.02.002 - Free irq handler in __tw_shutdown().
Turn on RCD bit for caching mode page.
Serialize reset code.
[SCSI] 3w-xxxx, 3w-9xxx: force 60 second timeout This small patch forces 60 second timeouts for the older 3w-xxxx & 3w-9xxx drivers for systems that don't contain the udev rule for setting scsi timeouts to 60 seconds. Signed-off-by: Adam Radford <aradford@gmail.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-03-09 04:37:46 +08:00
1.26.02.003 - Force 60 second timeout default.
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
*/
#include <linux/module.h>
#include <linux/reboot.h>
#include <linux/spinlock.h>
#include <linux/interrupt.h>
#include <linux/moduleparam.h>
#include <linux/errno.h>
#include <linux/types.h>
#include <linux/delay.h>
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-24 16:04:11 +08:00
#include <linux/gfp.h>
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
#include <linux/pci.h>
#include <linux/time.h>
[SCSI] sem2mutex 3w-[x9]xxx Convert a the 3w-9xxx.c and 3w-xxxx.c drivers to use mutexes instead of semaphores. Untested, but compiles and looks obviously correct. Signed-off-by: Jes Sorensen <jes@sgi.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-01-11 21:39:45 +08:00
#include <linux/mutex.h>
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
#include <asm/io.h>
#include <asm/irq.h>
Replace <asm/uaccess.h> with <linux/uaccess.h> globally This was entirely automated, using the script by Al: PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*<asm/uaccess.h>' sed -i -e "s!$PATT!#include <linux/uaccess.h>!" \ $(git grep -l "$PATT"|grep -v ^include/linux/uaccess.h) to do the replacement at the end of the merge window. Requested-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-25 03:46:01 +08:00
#include <linux/uaccess.h>
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
#include <scsi/scsi.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_tcq.h>
#include <scsi/scsi_cmnd.h>
[SCSI] 3w-xxxx: Create sense buffer for unsupported commands Make the driver return appropriate sense data when an unsupported operation is queued. This will cause the SCSI layer to stop issuing the offending command. Reported-by: Florian Westphal <fw@strlen.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Acked-by: Adam Radford <aradford@gmail.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-04-30 00:13:01 +08:00
#include <scsi/scsi_eh.h>
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
#include "3w-xxxx.h"
/* Globals */
[SCSI] 3w-xxxx, 3w-9xxx: force 60 second timeout This small patch forces 60 second timeouts for the older 3w-xxxx & 3w-9xxx drivers for systems that don't contain the udev rule for setting scsi timeouts to 60 seconds. Signed-off-by: Adam Radford <aradford@gmail.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-03-09 04:37:46 +08:00
#define TW_DRIVER_VERSION "1.26.02.003"
scsi: autoconvert trivial BKL users to private mutex All these files use the big kernel lock in a trivial way to serialize their private file operations, typically resulting from an earlier semi-automatic pushdown from VFS. None of these drivers appears to want to lock against other code, and they all use the BKL as the top-level lock in their file operations, meaning that there is no lock-order inversion problem. Consequently, we can remove the BKL completely, replacing it with a per-file mutex in every case. Using a scripted approach means we can avoid typos. file=$1 name=$2 if grep -q lock_kernel ${file} ; then if grep -q 'include.*linux.mutex.h' ${file} ; then sed -i '/include.*<linux\/smp_lock.h>/d' ${file} else sed -i 's/include.*<linux\/smp_lock.h>.*$/include <linux\/mutex.h>/g' ${file} fi sed -i ${file} \ -e "/^#include.*linux.mutex.h/,$ { 1,/^\(static\|int\|long\)/ { /^\(static\|int\|long\)/istatic DEFINE_MUTEX(${name}_mutex); } }" \ -e "s/\(un\)*lock_kernel\>[ ]*()/mutex_\1lock(\&${name}_mutex)/g" \ -e '/[ ]*cycle_kernel_lock();/d' else sed -i -e '/include.*\<smp_lock.h\>/d' ${file} \ -e '/cycle_kernel_lock()/d' fi Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: linux-scsi@vger.kernel.org Cc: "James E.J. Bottomley" <James.Bottomley@suse.de>
2010-06-02 20:28:52 +08:00
static DEFINE_MUTEX(tw_mutex);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
static TW_Device_Extension *tw_device_extension_list[TW_MAX_SLOT];
static int tw_device_extension_count = 0;
static int twe_major = -1;
/* Module parameters */
[SCSI] 3w-xxxx, 3w-9xxx: force 60 second timeout This small patch forces 60 second timeouts for the older 3w-xxxx & 3w-9xxx drivers for systems that don't contain the udev rule for setting scsi timeouts to 60 seconds. Signed-off-by: Adam Radford <aradford@gmail.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-03-09 04:37:46 +08:00
MODULE_AUTHOR("LSI");
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
MODULE_DESCRIPTION("3ware Storage Controller Linux Driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(TW_DRIVER_VERSION);
/* Function prototypes */
[SCSI] 3ware 8000 serialize reset code The attached patch updates the 3ware 8000 driver: - Free irq handler in __tw_shutdown(). - Turn on RCD bit for caching mode page. - Serialize reset code. Signed-off-by: Adam Radford <linuxraid@amcc.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-01-05 10:16:56 +08:00
static int tw_reset_device_extension(TW_Device_Extension *tw_dev);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/* Functions */
/* This function will check the status register for unexpected bits */
static int tw_check_bits(u32 status_reg_value)
{
if ((status_reg_value & TW_STATUS_EXPECTED_BITS) != TW_STATUS_EXPECTED_BITS) {
dprintk(KERN_WARNING "3w-xxxx: tw_check_bits(): No expected bits (0x%x).\n", status_reg_value);
return 1;
}
if ((status_reg_value & TW_STATUS_UNEXPECTED_BITS) != 0) {
dprintk(KERN_WARNING "3w-xxxx: tw_check_bits(): Found unexpected bits (0x%x).\n", status_reg_value);
return 1;
}
return 0;
} /* End tw_check_bits() */
/* This function will print readable messages from status register errors */
static int tw_decode_bits(TW_Device_Extension *tw_dev, u32 status_reg_value, int print_host)
{
char host[16];
dprintk(KERN_WARNING "3w-xxxx: tw_decode_bits()\n");
if (print_host)
sprintf(host, " scsi%d:", tw_dev->host->host_no);
else
host[0] = '\0';
if (status_reg_value & TW_STATUS_PCI_PARITY_ERROR) {
printk(KERN_WARNING "3w-xxxx:%s PCI Parity Error: clearing.\n", host);
outl(TW_CONTROL_CLEAR_PARITY_ERROR, TW_CONTROL_REG_ADDR(tw_dev));
}
if (status_reg_value & TW_STATUS_PCI_ABORT) {
printk(KERN_WARNING "3w-xxxx:%s PCI Abort: clearing.\n", host);
outl(TW_CONTROL_CLEAR_PCI_ABORT, TW_CONTROL_REG_ADDR(tw_dev));
pci_write_config_word(tw_dev->tw_pci_dev, PCI_STATUS, TW_PCI_CLEAR_PCI_ABORT);
}
if (status_reg_value & TW_STATUS_QUEUE_ERROR) {
printk(KERN_WARNING "3w-xxxx:%s Controller Queue Error: clearing.\n", host);
outl(TW_CONTROL_CLEAR_QUEUE_ERROR, TW_CONTROL_REG_ADDR(tw_dev));
}
if (status_reg_value & TW_STATUS_SBUF_WRITE_ERROR) {
printk(KERN_WARNING "3w-xxxx:%s SBUF Write Error: clearing.\n", host);
outl(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) {
printk(KERN_WARNING "3w-xxxx:%s Microcontroller Error: clearing.\n", host);
tw_dev->reset_print = 1;
}
return 1;
}
return 0;
} /* End tw_decode_bits() */
/* This function will poll the status register for a flag */
static int tw_poll_status(TW_Device_Extension *tw_dev, u32 flag, int seconds)
{
u32 status_reg_value;
unsigned long before;
int retval = 1;
status_reg_value = inl(TW_STATUS_REG_ADDR(tw_dev));
before = jiffies;
if (tw_check_bits(status_reg_value))
tw_decode_bits(tw_dev, status_reg_value, 0);
while ((status_reg_value & flag) != flag) {
status_reg_value = inl(TW_STATUS_REG_ADDR(tw_dev));
if (tw_check_bits(status_reg_value))
tw_decode_bits(tw_dev, status_reg_value, 0);
if (time_after(jiffies, before + HZ * seconds))
goto out;
msleep(50);
}
retval = 0;
out:
return retval;
} /* End tw_poll_status() */
/* This function will poll the status register for disappearance of a flag */
static int tw_poll_status_gone(TW_Device_Extension *tw_dev, u32 flag, int seconds)
{
u32 status_reg_value;
unsigned long before;
int retval = 1;
status_reg_value = inl(TW_STATUS_REG_ADDR(tw_dev));
before = jiffies;
if (tw_check_bits(status_reg_value))
tw_decode_bits(tw_dev, status_reg_value, 0);
while ((status_reg_value & flag) != 0) {
status_reg_value = inl(TW_STATUS_REG_ADDR(tw_dev));
if (tw_check_bits(status_reg_value))
tw_decode_bits(tw_dev, status_reg_value, 0);
if (time_after(jiffies, before + HZ * seconds))
goto out;
msleep(50);
}
retval = 0;
out:
return retval;
} /* End tw_poll_status_gone() */
/* This function will attempt to post a command packet to the board */
static int tw_post_command_packet(TW_Device_Extension *tw_dev, int request_id)
{
u32 status_reg_value;
unsigned long command_que_value;
dprintk(KERN_NOTICE "3w-xxxx: tw_post_command_packet()\n");
command_que_value = tw_dev->command_packet_physical_address[request_id];
status_reg_value = inl(TW_STATUS_REG_ADDR(tw_dev));
if (tw_check_bits(status_reg_value)) {
dprintk(KERN_WARNING "3w-xxxx: tw_post_command_packet(): Unexpected bits.\n");
tw_decode_bits(tw_dev, status_reg_value, 1);
}
if ((status_reg_value & TW_STATUS_COMMAND_QUEUE_FULL) == 0) {
/* We successfully posted the command packet */
outl(command_que_value, TW_COMMAND_QUEUE_REG_ADDR(tw_dev));
tw_dev->state[request_id] = TW_S_POSTED;
tw_dev->posted_request_count++;
if (tw_dev->posted_request_count > tw_dev->max_posted_request_count) {
tw_dev->max_posted_request_count = tw_dev->posted_request_count;
}
} else {
/* Couldn't post the command packet, so we do it in the isr */
if (tw_dev->state[request_id] != TW_S_PENDING) {
tw_dev->state[request_id] = TW_S_PENDING;
tw_dev->pending_request_count++;
if (tw_dev->pending_request_count > tw_dev->max_pending_request_count) {
tw_dev->max_pending_request_count = tw_dev->pending_request_count;
}
tw_dev->pending_queue[tw_dev->pending_tail] = request_id;
if (tw_dev->pending_tail == TW_Q_LENGTH-1) {
tw_dev->pending_tail = TW_Q_START;
} else {
tw_dev->pending_tail = tw_dev->pending_tail + 1;
}
}
TW_UNMASK_COMMAND_INTERRUPT(tw_dev);
return 1;
}
return 0;
} /* End tw_post_command_packet() */
/* This function will return valid sense buffer information for failed cmds */
static int tw_decode_sense(TW_Device_Extension *tw_dev, int request_id, int fill_sense)
{
int i;
TW_Command *command;
dprintk(KERN_WARNING "3w-xxxx: tw_decode_sense()\n");
command = (TW_Command *)tw_dev->command_packet_virtual_address[request_id];
printk(KERN_WARNING "3w-xxxx: scsi%d: Command failed: status = 0x%x, flags = 0x%x, unit #%d.\n", tw_dev->host->host_no, command->status, command->flags, TW_UNIT_OUT(command->unit__hostid));
/* Attempt to return intelligent sense information */
if (fill_sense) {
if ((command->status == 0xc7) || (command->status == 0xcb)) {
[SCSI] drivers/scsi: Use ARRAY_SIZE macro Use ARRAY_SIZE macro instead of sizeof(x)/sizeof(x[0]) and remove duplicates of the macro. Signed-off-by: Tobias Klauser <tklauser@nuerscht.ch> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-06-09 13:23:48 +08:00
for (i = 0; i < ARRAY_SIZE(tw_sense_table); i++) {
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (command->flags == tw_sense_table[i][0]) {
/* Valid bit and 'current errors' */
tw_dev->srb[request_id]->sense_buffer[0] = (0x1 << 7 | 0x70);
/* Sense key */
tw_dev->srb[request_id]->sense_buffer[2] = tw_sense_table[i][1];
/* Additional sense length */
tw_dev->srb[request_id]->sense_buffer[7] = 0xa; /* 10 bytes */
/* Additional sense code */
tw_dev->srb[request_id]->sense_buffer[12] = tw_sense_table[i][2];
/* Additional sense code qualifier */
tw_dev->srb[request_id]->sense_buffer[13] = tw_sense_table[i][3];
tw_dev->srb[request_id]->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
return TW_ISR_DONT_RESULT; /* Special case for isr to not over-write result */
}
}
}
/* If no table match, error so we get a reset */
return 1;
}
return 0;
} /* End tw_decode_sense() */
/* This function will report controller error status */
static int tw_check_errors(TW_Device_Extension *tw_dev)
{
u32 status_reg_value;
status_reg_value = inl(TW_STATUS_REG_ADDR(tw_dev));
if (TW_STATUS_ERRORS(status_reg_value) || tw_check_bits(status_reg_value)) {
tw_decode_bits(tw_dev, status_reg_value, 0);
return 1;
}
return 0;
} /* End tw_check_errors() */
/* This function will empty the response que */
static void tw_empty_response_que(TW_Device_Extension *tw_dev)
{
u32 status_reg_value, response_que_value;
status_reg_value = inl(TW_STATUS_REG_ADDR(tw_dev));
while ((status_reg_value & TW_STATUS_RESPONSE_QUEUE_EMPTY) == 0) {
response_que_value = inl(TW_RESPONSE_QUEUE_REG_ADDR(tw_dev));
status_reg_value = inl(TW_STATUS_REG_ADDR(tw_dev));
}
} /* End tw_empty_response_que() */
/* This function will free a request_id */
static void tw_state_request_finish(TW_Device_Extension *tw_dev, int request_id)
{
tw_dev->free_queue[tw_dev->free_tail] = request_id;
tw_dev->state[request_id] = TW_S_FINISHED;
tw_dev->free_tail = (tw_dev->free_tail + 1) % TW_Q_LENGTH;
} /* End tw_state_request_finish() */
/* This function will assign an available request_id */
static void tw_state_request_start(TW_Device_Extension *tw_dev, int *request_id)
{
*request_id = tw_dev->free_queue[tw_dev->free_head];
tw_dev->free_head = (tw_dev->free_head + 1) % TW_Q_LENGTH;
tw_dev->state[*request_id] = TW_S_STARTED;
} /* End tw_state_request_start() */
/* Show some statistics about the card */
SCSI: convert struct class_device to struct device It's big, but there doesn't seem to be a way to split it up smaller... Signed-off-by: Tony Jones <tonyj@suse.de> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Cc: Roland Dreier <rolandd@cisco.com> Cc: Sean Hefty <sean.hefty@intel.com> Cc: Hal Rosenstock <hal.rosenstock@gmail.com> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-22 07:13:36 +08:00
static ssize_t tw_show_stats(struct device *dev, struct device_attribute *attr,
char *buf)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
SCSI: convert struct class_device to struct device It's big, but there doesn't seem to be a way to split it up smaller... Signed-off-by: Tony Jones <tonyj@suse.de> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Cc: Roland Dreier <rolandd@cisco.com> Cc: Sean Hefty <sean.hefty@intel.com> Cc: Hal Rosenstock <hal.rosenstock@gmail.com> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-22 07:13:36 +08:00
struct Scsi_Host *host = class_to_shost(dev);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
TW_Device_Extension *tw_dev = (TW_Device_Extension *)host->hostdata;
unsigned long flags = 0;
ssize_t len;
spin_lock_irqsave(tw_dev->host->host_lock, flags);
len = snprintf(buf, PAGE_SIZE, "3w-xxxx Driver version: %s\n"
"Current commands posted: %4d\n"
"Max commands posted: %4d\n"
"Current pending commands: %4d\n"
"Max pending commands: %4d\n"
"Last sgl length: %4d\n"
"Max sgl length: %4d\n"
"Last sector count: %4d\n"
"Max sector count: %4d\n"
"SCSI Host Resets: %4d\n"
"AEN's: %4d\n",
TW_DRIVER_VERSION,
tw_dev->posted_request_count,
tw_dev->max_posted_request_count,
tw_dev->pending_request_count,
tw_dev->max_pending_request_count,
tw_dev->sgl_entries,
tw_dev->max_sgl_entries,
tw_dev->sector_count,
tw_dev->max_sector_count,
tw_dev->num_resets,
tw_dev->aen_count);
spin_unlock_irqrestore(tw_dev->host->host_lock, flags);
return len;
} /* End tw_show_stats() */
/* Create sysfs 'stats' entry */
SCSI: convert struct class_device to struct device It's big, but there doesn't seem to be a way to split it up smaller... Signed-off-by: Tony Jones <tonyj@suse.de> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Cc: Roland Dreier <rolandd@cisco.com> Cc: Sean Hefty <sean.hefty@intel.com> Cc: Hal Rosenstock <hal.rosenstock@gmail.com> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-22 07:13:36 +08:00
static struct device_attribute tw_host_stats_attr = {
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
.attr = {
.name = "stats",
.mode = S_IRUGO,
},
.show = tw_show_stats
};
/* Host attributes initializer */
SCSI: convert struct class_device to struct device It's big, but there doesn't seem to be a way to split it up smaller... Signed-off-by: Tony Jones <tonyj@suse.de> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Cc: Roland Dreier <rolandd@cisco.com> Cc: Sean Hefty <sean.hefty@intel.com> Cc: Hal Rosenstock <hal.rosenstock@gmail.com> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-22 07:13:36 +08:00
static struct device_attribute *tw_host_attrs[] = {
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
&tw_host_stats_attr,
NULL,
};
/* This function will read the aen queue from the isr */
static int tw_aen_read_queue(TW_Device_Extension *tw_dev, int request_id)
{
TW_Command *command_packet;
TW_Param *param;
unsigned long command_que_value;
u32 status_reg_value;
unsigned long param_value = 0;
dprintk(KERN_NOTICE "3w-xxxx: tw_aen_read_queue()\n");
status_reg_value = inl(TW_STATUS_REG_ADDR(tw_dev));
if (tw_check_bits(status_reg_value)) {
dprintk(KERN_WARNING "3w-xxxx: tw_aen_read_queue(): Unexpected bits.\n");
tw_decode_bits(tw_dev, status_reg_value, 1);
return 1;
}
if (tw_dev->command_packet_virtual_address[request_id] == NULL) {
printk(KERN_WARNING "3w-xxxx: tw_aen_read_queue(): Bad command packet virtual address.\n");
return 1;
}
command_packet = (TW_Command *)tw_dev->command_packet_virtual_address[request_id];
memset(command_packet, 0, sizeof(TW_Sector));
command_packet->opcode__sgloffset = TW_OPSGL_IN(2, TW_OP_GET_PARAM);
command_packet->size = 4;
command_packet->request_id = request_id;
command_packet->status = 0;
command_packet->flags = 0;
command_packet->byte6.parameter_count = 1;
command_que_value = tw_dev->command_packet_physical_address[request_id];
if (command_que_value == 0) {
printk(KERN_WARNING "3w-xxxx: tw_aen_read_queue(): Bad command packet physical address.\n");
return 1;
}
/* Now setup the param */
if (tw_dev->alignment_virtual_address[request_id] == NULL) {
printk(KERN_WARNING "3w-xxxx: tw_aen_read_queue(): Bad alignment virtual address.\n");
return 1;
}
param = (TW_Param *)tw_dev->alignment_virtual_address[request_id];
memset(param, 0, sizeof(TW_Sector));
param->table_id = 0x401; /* AEN table */
param->parameter_id = 2; /* Unit code */
param->parameter_size_bytes = 2;
param_value = tw_dev->alignment_physical_address[request_id];
if (param_value == 0) {
printk(KERN_WARNING "3w-xxxx: tw_aen_read_queue(): Bad alignment physical address.\n");
return 1;
}
command_packet->byte8.param.sgl[0].address = param_value;
command_packet->byte8.param.sgl[0].length = sizeof(TW_Sector);
/* Now post the command packet */
if ((status_reg_value & TW_STATUS_COMMAND_QUEUE_FULL) == 0) {
dprintk(KERN_WARNING "3w-xxxx: tw_aen_read_queue(): Post succeeded.\n");
tw_dev->srb[request_id] = NULL; /* Flag internal command */
tw_dev->state[request_id] = TW_S_POSTED;
outl(command_que_value, TW_COMMAND_QUEUE_REG_ADDR(tw_dev));
} else {
printk(KERN_WARNING "3w-xxxx: tw_aen_read_queue(): Post failed, will retry.\n");
return 1;
}
return 0;
} /* End tw_aen_read_queue() */
/* This function will complete an aen request from the isr */
static int tw_aen_complete(TW_Device_Extension *tw_dev, int request_id)
{
TW_Param *param;
unsigned short aen;
int error = 0, table_max = 0;
dprintk(KERN_WARNING "3w-xxxx: tw_aen_complete()\n");
if (tw_dev->alignment_virtual_address[request_id] == NULL) {
printk(KERN_WARNING "3w-xxxx: tw_aen_complete(): Bad alignment virtual address.\n");
return 1;
}
param = (TW_Param *)tw_dev->alignment_virtual_address[request_id];
aen = *(unsigned short *)(param->data);
dprintk(KERN_NOTICE "3w-xxxx: tw_aen_complete(): Queue'd code 0x%x\n", aen);
/* Print some useful info when certain aen codes come out */
if (aen == 0x0ff) {
printk(KERN_WARNING "3w-xxxx: scsi%d: AEN: INFO: AEN queue overflow.\n", tw_dev->host->host_no);
} else {
[SCSI] drivers/scsi: Use ARRAY_SIZE macro Use ARRAY_SIZE macro instead of sizeof(x)/sizeof(x[0]) and remove duplicates of the macro. Signed-off-by: Tobias Klauser <tklauser@nuerscht.ch> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-06-09 13:23:48 +08:00
table_max = ARRAY_SIZE(tw_aen_string);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if ((aen & 0x0ff) < table_max) {
if ((tw_aen_string[aen & 0xff][strlen(tw_aen_string[aen & 0xff])-1]) == '#') {
printk(KERN_WARNING "3w-xxxx: scsi%d: AEN: %s%d.\n", tw_dev->host->host_no, tw_aen_string[aen & 0xff], aen >> 8);
} else {
if (aen != 0x0)
printk(KERN_WARNING "3w-xxxx: scsi%d: AEN: %s.\n", tw_dev->host->host_no, tw_aen_string[aen & 0xff]);
}
} else {
printk(KERN_WARNING "3w-xxxx: scsi%d: Received AEN %d.\n", tw_dev->host->host_no, aen);
}
}
if (aen != TW_AEN_QUEUE_EMPTY) {
tw_dev->aen_count++;
/* Now queue the code */
tw_dev->aen_queue[tw_dev->aen_tail] = aen;
if (tw_dev->aen_tail == TW_Q_LENGTH - 1) {
tw_dev->aen_tail = TW_Q_START;
} else {
tw_dev->aen_tail = tw_dev->aen_tail + 1;
}
if (tw_dev->aen_head == tw_dev->aen_tail) {
if (tw_dev->aen_head == TW_Q_LENGTH - 1) {
tw_dev->aen_head = TW_Q_START;
} else {
tw_dev->aen_head = tw_dev->aen_head + 1;
}
}
error = tw_aen_read_queue(tw_dev, request_id);
if (error) {
printk(KERN_WARNING "3w-xxxx: scsi%d: Error completing AEN.\n", tw_dev->host->host_no);
tw_dev->state[request_id] = TW_S_COMPLETED;
tw_state_request_finish(tw_dev, request_id);
}
} else {
tw_dev->state[request_id] = TW_S_COMPLETED;
tw_state_request_finish(tw_dev, request_id);
}
return 0;
} /* End tw_aen_complete() */
/* This function will drain the aen queue after a soft reset */
static int tw_aen_drain_queue(TW_Device_Extension *tw_dev)
{
TW_Command *command_packet;
TW_Param *param;
int request_id = 0;
unsigned long command_que_value;
unsigned long param_value;
TW_Response_Queue response_queue;
unsigned short aen;
unsigned short aen_code;
int finished = 0;
int first_reset = 0;
int queue = 0;
int found = 0, table_max = 0;
dprintk(KERN_NOTICE "3w-xxxx: tw_aen_drain_queue()\n");
if (tw_poll_status(tw_dev, TW_STATUS_ATTENTION_INTERRUPT | TW_STATUS_MICROCONTROLLER_READY, 30)) {
dprintk(KERN_WARNING "3w-xxxx: tw_aen_drain_queue(): No attention interrupt for card %d.\n", tw_device_extension_count);
return 1;
}
TW_CLEAR_ATTENTION_INTERRUPT(tw_dev);
/* Empty response queue */
tw_empty_response_que(tw_dev);
/* Initialize command packet */
if (tw_dev->command_packet_virtual_address[request_id] == NULL) {
printk(KERN_WARNING "3w-xxxx: tw_aen_drain_queue(): Bad command packet virtual address.\n");
return 1;
}
command_packet = (TW_Command *)tw_dev->command_packet_virtual_address[request_id];
memset(command_packet, 0, sizeof(TW_Sector));
command_packet->opcode__sgloffset = TW_OPSGL_IN(2, TW_OP_GET_PARAM);
command_packet->size = 4;
command_packet->request_id = request_id;
command_packet->status = 0;
command_packet->flags = 0;
command_packet->byte6.parameter_count = 1;
command_que_value = tw_dev->command_packet_physical_address[request_id];
if (command_que_value == 0) {
printk(KERN_WARNING "3w-xxxx: tw_aen_drain_queue(): Bad command packet physical address.\n");
return 1;
}
/* Now setup the param */
if (tw_dev->alignment_virtual_address[request_id] == NULL) {
printk(KERN_WARNING "3w-xxxx: tw_aen_drain_queue(): Bad alignment virtual address.\n");
return 1;
}
param = (TW_Param *)tw_dev->alignment_virtual_address[request_id];
memset(param, 0, sizeof(TW_Sector));
param->table_id = 0x401; /* AEN table */
param->parameter_id = 2; /* Unit code */
param->parameter_size_bytes = 2;
param_value = tw_dev->alignment_physical_address[request_id];
if (param_value == 0) {
printk(KERN_WARNING "3w-xxxx: tw_aen_drain_queue(): Bad alignment physical address.\n");
return 1;
}
command_packet->byte8.param.sgl[0].address = param_value;
command_packet->byte8.param.sgl[0].length = sizeof(TW_Sector);
/* Now drain the controller's aen queue */
do {
/* Post command packet */
outl(command_que_value, TW_COMMAND_QUEUE_REG_ADDR(tw_dev));
/* Now poll for completion */
if (tw_poll_status_gone(tw_dev, TW_STATUS_RESPONSE_QUEUE_EMPTY, 30) == 0) {
response_queue.value = inl(TW_RESPONSE_QUEUE_REG_ADDR(tw_dev));
request_id = TW_RESID_OUT(response_queue.response_id);
if (request_id != 0) {
/* Unexpected request id */
printk(KERN_WARNING "3w-xxxx: tw_aen_drain_queue(): Unexpected request id.\n");
return 1;
}
if (command_packet->status != 0) {
if (command_packet->flags != TW_AEN_TABLE_UNDEFINED) {
/* Bad response */
tw_decode_sense(tw_dev, request_id, 0);
return 1;
} else {
/* We know this is a 3w-1x00, and doesn't support aen's */
return 0;
}
}
/* Now check the aen */
aen = *(unsigned short *)(param->data);
aen_code = (aen & 0x0ff);
queue = 0;
switch (aen_code) {
case TW_AEN_QUEUE_EMPTY:
dprintk(KERN_WARNING "3w-xxxx: AEN: %s.\n", tw_aen_string[aen & 0xff]);
if (first_reset != 1) {
return 1;
} else {
finished = 1;
}
break;
case TW_AEN_SOFT_RESET:
if (first_reset == 0) {
first_reset = 1;
} else {
printk(KERN_WARNING "3w-xxxx: AEN: %s.\n", tw_aen_string[aen & 0xff]);
tw_dev->aen_count++;
queue = 1;
}
break;
default:
if (aen == 0x0ff) {
printk(KERN_WARNING "3w-xxxx: AEN: INFO: AEN queue overflow.\n");
} else {
[SCSI] drivers/scsi: Use ARRAY_SIZE macro Use ARRAY_SIZE macro instead of sizeof(x)/sizeof(x[0]) and remove duplicates of the macro. Signed-off-by: Tobias Klauser <tklauser@nuerscht.ch> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-06-09 13:23:48 +08:00
table_max = ARRAY_SIZE(tw_aen_string);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if ((aen & 0x0ff) < table_max) {
if ((tw_aen_string[aen & 0xff][strlen(tw_aen_string[aen & 0xff])-1]) == '#') {
printk(KERN_WARNING "3w-xxxx: AEN: %s%d.\n", tw_aen_string[aen & 0xff], aen >> 8);
} else {
printk(KERN_WARNING "3w-xxxx: AEN: %s.\n", tw_aen_string[aen & 0xff]);
}
} else
printk(KERN_WARNING "3w-xxxx: Received AEN %d.\n", aen);
}
tw_dev->aen_count++;
queue = 1;
}
/* Now put the aen on the aen_queue */
if (queue == 1) {
tw_dev->aen_queue[tw_dev->aen_tail] = aen;
if (tw_dev->aen_tail == TW_Q_LENGTH - 1) {
tw_dev->aen_tail = TW_Q_START;
} else {
tw_dev->aen_tail = tw_dev->aen_tail + 1;
}
if (tw_dev->aen_head == tw_dev->aen_tail) {
if (tw_dev->aen_head == TW_Q_LENGTH - 1) {
tw_dev->aen_head = TW_Q_START;
} else {
tw_dev->aen_head = tw_dev->aen_head + 1;
}
}
}
found = 1;
}
if (found == 0) {
printk(KERN_WARNING "3w-xxxx: tw_aen_drain_queue(): Response never received.\n");
return 1;
}
} while (finished == 0);
return 0;
} /* End tw_aen_drain_queue() */
/* This function will allocate memory */
static int tw_allocate_memory(TW_Device_Extension *tw_dev, int size, int which)
{
int i;
dma_addr_t dma_handle;
unsigned long *cpu_addr = NULL;
dprintk(KERN_NOTICE "3w-xxxx: tw_allocate_memory()\n");
scsi: 3w-xxx: fully convert to the generic DMA API The driver is currently using an odd mix of legacy PCI DMA API and generic DMA API calls, switch it over to the generic API entirely. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Adam Radford <aradford@gmail.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-10 23:58:50 +08:00
cpu_addr = dma_alloc_coherent(&tw_dev->tw_pci_dev->dev,
size * TW_Q_LENGTH, &dma_handle, GFP_KERNEL);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (cpu_addr == NULL) {
scsi: 3w-xxx: fully convert to the generic DMA API The driver is currently using an odd mix of legacy PCI DMA API and generic DMA API calls, switch it over to the generic API entirely. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Adam Radford <aradford@gmail.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-10 23:58:50 +08:00
printk(KERN_WARNING "3w-xxxx: dma_alloc_coherent() failed.\n");
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
return 1;
}
if ((unsigned long)cpu_addr % (tw_dev->tw_pci_dev->device == TW_DEVICE_ID ? TW_ALIGNMENT_6000 : TW_ALIGNMENT_7000)) {
printk(KERN_WARNING "3w-xxxx: Couldn't allocate correctly aligned memory.\n");
scsi: 3w-xxx: fully convert to the generic DMA API The driver is currently using an odd mix of legacy PCI DMA API and generic DMA API calls, switch it over to the generic API entirely. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Adam Radford <aradford@gmail.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-10 23:58:50 +08:00
dma_free_coherent(&tw_dev->tw_pci_dev->dev, size * TW_Q_LENGTH,
cpu_addr, dma_handle);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
return 1;
}
memset(cpu_addr, 0, size*TW_Q_LENGTH);
for (i=0;i<TW_Q_LENGTH;i++) {
switch(which) {
case 0:
tw_dev->command_packet_physical_address[i] = dma_handle+(i*size);
tw_dev->command_packet_virtual_address[i] = (unsigned long *)((unsigned char *)cpu_addr + (i*size));
break;
case 1:
tw_dev->alignment_physical_address[i] = dma_handle+(i*size);
tw_dev->alignment_virtual_address[i] = (unsigned long *)((unsigned char *)cpu_addr + (i*size));
break;
default:
printk(KERN_WARNING "3w-xxxx: tw_allocate_memory(): case slip in tw_allocate_memory()\n");
return 1;
}
}
return 0;
} /* End tw_allocate_memory() */
/* This function handles ioctl for the character device */
scsi: Push down BKL into ioctl functions Push down the bkl into ioctl functions on the scsi layer. [jkacur: Forward declaration missing ';'. Conflicting declaraction in megaraid.h changed Fixed missing inodes declarations] Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: John Kacur <jkacur@redhat.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
2010-04-27 06:24:01 +08:00
static long tw_chrdev_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
int request_id;
dma_addr_t dma_handle;
unsigned short tw_aen_code;
unsigned long flags;
unsigned int data_buffer_length = 0;
unsigned long data_buffer_length_adjusted = 0;
new helper: file_inode(file) Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-01-24 06:07:38 +08:00
struct inode *inode = file_inode(file);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
unsigned long *cpu_addr;
long timeout;
TW_New_Ioctl *tw_ioctl;
TW_Passthru *passthru;
TW_Device_Extension *tw_dev = tw_device_extension_list[iminor(inode)];
int retval = -EFAULT;
void __user *argp = (void __user *)arg;
dprintk(KERN_WARNING "3w-xxxx: tw_chrdev_ioctl()\n");
scsi: autoconvert trivial BKL users to private mutex All these files use the big kernel lock in a trivial way to serialize their private file operations, typically resulting from an earlier semi-automatic pushdown from VFS. None of these drivers appears to want to lock against other code, and they all use the BKL as the top-level lock in their file operations, meaning that there is no lock-order inversion problem. Consequently, we can remove the BKL completely, replacing it with a per-file mutex in every case. Using a scripted approach means we can avoid typos. file=$1 name=$2 if grep -q lock_kernel ${file} ; then if grep -q 'include.*linux.mutex.h' ${file} ; then sed -i '/include.*<linux\/smp_lock.h>/d' ${file} else sed -i 's/include.*<linux\/smp_lock.h>.*$/include <linux\/mutex.h>/g' ${file} fi sed -i ${file} \ -e "/^#include.*linux.mutex.h/,$ { 1,/^\(static\|int\|long\)/ { /^\(static\|int\|long\)/istatic DEFINE_MUTEX(${name}_mutex); } }" \ -e "s/\(un\)*lock_kernel\>[ ]*()/mutex_\1lock(\&${name}_mutex)/g" \ -e '/[ ]*cycle_kernel_lock();/d' else sed -i -e '/include.*\<smp_lock.h\>/d' ${file} \ -e '/cycle_kernel_lock()/d' fi Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: linux-scsi@vger.kernel.org Cc: "James E.J. Bottomley" <James.Bottomley@suse.de>
2010-06-02 20:28:52 +08:00
mutex_lock(&tw_mutex);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/* Only let one of these through at a time */
scsi: Push down BKL into ioctl functions Push down the bkl into ioctl functions on the scsi layer. [jkacur: Forward declaration missing ';'. Conflicting declaraction in megaraid.h changed Fixed missing inodes declarations] Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: John Kacur <jkacur@redhat.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
2010-04-27 06:24:01 +08:00
if (mutex_lock_interruptible(&tw_dev->ioctl_lock)) {
scsi: autoconvert trivial BKL users to private mutex All these files use the big kernel lock in a trivial way to serialize their private file operations, typically resulting from an earlier semi-automatic pushdown from VFS. None of these drivers appears to want to lock against other code, and they all use the BKL as the top-level lock in their file operations, meaning that there is no lock-order inversion problem. Consequently, we can remove the BKL completely, replacing it with a per-file mutex in every case. Using a scripted approach means we can avoid typos. file=$1 name=$2 if grep -q lock_kernel ${file} ; then if grep -q 'include.*linux.mutex.h' ${file} ; then sed -i '/include.*<linux\/smp_lock.h>/d' ${file} else sed -i 's/include.*<linux\/smp_lock.h>.*$/include <linux\/mutex.h>/g' ${file} fi sed -i ${file} \ -e "/^#include.*linux.mutex.h/,$ { 1,/^\(static\|int\|long\)/ { /^\(static\|int\|long\)/istatic DEFINE_MUTEX(${name}_mutex); } }" \ -e "s/\(un\)*lock_kernel\>[ ]*()/mutex_\1lock(\&${name}_mutex)/g" \ -e '/[ ]*cycle_kernel_lock();/d' else sed -i -e '/include.*\<smp_lock.h\>/d' ${file} \ -e '/cycle_kernel_lock()/d' fi Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: linux-scsi@vger.kernel.org Cc: "James E.J. Bottomley" <James.Bottomley@suse.de>
2010-06-02 20:28:52 +08:00
mutex_unlock(&tw_mutex);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
return -EINTR;
scsi: Push down BKL into ioctl functions Push down the bkl into ioctl functions on the scsi layer. [jkacur: Forward declaration missing ';'. Conflicting declaraction in megaraid.h changed Fixed missing inodes declarations] Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: John Kacur <jkacur@redhat.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
2010-04-27 06:24:01 +08:00
}
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/* First copy down the buffer length */
if (copy_from_user(&data_buffer_length, argp, sizeof(unsigned int)))
goto out;
/* Check size */
if (data_buffer_length > TW_MAX_IOCTL_SECTORS * 512) {
retval = -EINVAL;
goto out;
}
/* Hardware can only do multiple of 512 byte transfers */
data_buffer_length_adjusted = (data_buffer_length + 511) & ~511;
/* Now allocate ioctl buf memory */
cpu_addr = dma_alloc_coherent(&tw_dev->tw_pci_dev->dev, data_buffer_length_adjusted+sizeof(TW_New_Ioctl) - 1, &dma_handle, GFP_KERNEL);
if (cpu_addr == NULL) {
retval = -ENOMEM;
goto out;
}
tw_ioctl = (TW_New_Ioctl *)cpu_addr;
/* Now copy down the entire ioctl */
if (copy_from_user(tw_ioctl, argp, data_buffer_length + sizeof(TW_New_Ioctl) - 1))
goto out2;
passthru = (TW_Passthru *)&tw_ioctl->firmware_command;
/* See which ioctl we are doing */
switch (cmd) {
case TW_OP_NOP:
dprintk(KERN_WARNING "3w-xxxx: tw_chrdev_ioctl(): caught TW_OP_NOP.\n");
break;
case TW_OP_AEN_LISTEN:
dprintk(KERN_WARNING "3w-xxxx: tw_chrdev_ioctl(): caught TW_AEN_LISTEN.\n");
memset(tw_ioctl->data_buffer, 0, data_buffer_length);
spin_lock_irqsave(tw_dev->host->host_lock, flags);
if (tw_dev->aen_head == tw_dev->aen_tail) {
tw_aen_code = TW_AEN_QUEUE_EMPTY;
} else {
tw_aen_code = tw_dev->aen_queue[tw_dev->aen_head];
if (tw_dev->aen_head == TW_Q_LENGTH - 1) {
tw_dev->aen_head = TW_Q_START;
} else {
tw_dev->aen_head = tw_dev->aen_head + 1;
}
}
spin_unlock_irqrestore(tw_dev->host->host_lock, flags);
memcpy(tw_ioctl->data_buffer, &tw_aen_code, sizeof(tw_aen_code));
break;
case TW_CMD_PACKET_WITH_DATA:
dprintk(KERN_WARNING "3w-xxxx: tw_chrdev_ioctl(): caught TW_CMD_PACKET_WITH_DATA.\n");
spin_lock_irqsave(tw_dev->host->host_lock, flags);
tw_state_request_start(tw_dev, &request_id);
/* Flag internal command */
tw_dev->srb[request_id] = NULL;
/* Flag chrdev ioctl */
tw_dev->chrdev_request_id = request_id;
tw_ioctl->firmware_command.request_id = request_id;
/* Load the sg list */
switch (TW_SGL_OUT(tw_ioctl->firmware_command.opcode__sgloffset)) {
case 2:
tw_ioctl->firmware_command.byte8.param.sgl[0].address = dma_handle + sizeof(TW_New_Ioctl) - 1;
tw_ioctl->firmware_command.byte8.param.sgl[0].length = data_buffer_length_adjusted;
break;
case 3:
tw_ioctl->firmware_command.byte8.io.sgl[0].address = dma_handle + sizeof(TW_New_Ioctl) - 1;
tw_ioctl->firmware_command.byte8.io.sgl[0].length = data_buffer_length_adjusted;
break;
case 5:
passthru->sg_list[0].address = dma_handle + sizeof(TW_New_Ioctl) - 1;
passthru->sg_list[0].length = data_buffer_length_adjusted;
break;
}
memcpy(tw_dev->command_packet_virtual_address[request_id], &(tw_ioctl->firmware_command), sizeof(TW_Command));
/* Now post the command packet to the controller */
tw_post_command_packet(tw_dev, request_id);
spin_unlock_irqrestore(tw_dev->host->host_lock, flags);
timeout = TW_IOCTL_CHRDEV_TIMEOUT*HZ;
/* Now wait for the command to complete */
timeout = wait_event_timeout(tw_dev->ioctl_wqueue, tw_dev->chrdev_request_id == TW_IOCTL_CHRDEV_FREE, timeout);
/* We timed out, and didn't get an interrupt */
if (tw_dev->chrdev_request_id != TW_IOCTL_CHRDEV_FREE) {
/* Now we need to reset the board */
printk(KERN_WARNING "3w-xxxx: scsi%d: Character ioctl (0x%x) timed out, resetting card.\n", tw_dev->host->host_no, cmd);
retval = -EIO;
[SCSI] 3ware 8000 serialize reset code The attached patch updates the 3ware 8000 driver: - Free irq handler in __tw_shutdown(). - Turn on RCD bit for caching mode page. - Serialize reset code. Signed-off-by: Adam Radford <linuxraid@amcc.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-01-05 10:16:56 +08:00
if (tw_reset_device_extension(tw_dev)) {
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
printk(KERN_WARNING "3w-xxxx: tw_chrdev_ioctl(): Reset failed for card %d.\n", tw_dev->host->host_no);
}
goto out2;
}
/* Now copy in the command packet response */
memcpy(&(tw_ioctl->firmware_command), tw_dev->command_packet_virtual_address[request_id], sizeof(TW_Command));
/* Now complete the io */
spin_lock_irqsave(tw_dev->host->host_lock, flags);
tw_dev->posted_request_count--;
tw_dev->state[request_id] = TW_S_COMPLETED;
tw_state_request_finish(tw_dev, request_id);
spin_unlock_irqrestore(tw_dev->host->host_lock, flags);
break;
default:
retval = -ENOTTY;
goto out2;
}
/* Now copy the response to userspace */
if (copy_to_user(argp, tw_ioctl, sizeof(TW_New_Ioctl) + data_buffer_length - 1))
goto out2;
retval = 0;
out2:
/* Now free ioctl buf memory */
dma_free_coherent(&tw_dev->tw_pci_dev->dev, data_buffer_length_adjusted+sizeof(TW_New_Ioctl) - 1, cpu_addr, dma_handle);
out:
[SCSI] sem2mutex 3w-[x9]xxx Convert a the 3w-9xxx.c and 3w-xxxx.c drivers to use mutexes instead of semaphores. Untested, but compiles and looks obviously correct. Signed-off-by: Jes Sorensen <jes@sgi.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-01-11 21:39:45 +08:00
mutex_unlock(&tw_dev->ioctl_lock);
scsi: autoconvert trivial BKL users to private mutex All these files use the big kernel lock in a trivial way to serialize their private file operations, typically resulting from an earlier semi-automatic pushdown from VFS. None of these drivers appears to want to lock against other code, and they all use the BKL as the top-level lock in their file operations, meaning that there is no lock-order inversion problem. Consequently, we can remove the BKL completely, replacing it with a per-file mutex in every case. Using a scripted approach means we can avoid typos. file=$1 name=$2 if grep -q lock_kernel ${file} ; then if grep -q 'include.*linux.mutex.h' ${file} ; then sed -i '/include.*<linux\/smp_lock.h>/d' ${file} else sed -i 's/include.*<linux\/smp_lock.h>.*$/include <linux\/mutex.h>/g' ${file} fi sed -i ${file} \ -e "/^#include.*linux.mutex.h/,$ { 1,/^\(static\|int\|long\)/ { /^\(static\|int\|long\)/istatic DEFINE_MUTEX(${name}_mutex); } }" \ -e "s/\(un\)*lock_kernel\>[ ]*()/mutex_\1lock(\&${name}_mutex)/g" \ -e '/[ ]*cycle_kernel_lock();/d' else sed -i -e '/include.*\<smp_lock.h\>/d' ${file} \ -e '/cycle_kernel_lock()/d' fi Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: linux-scsi@vger.kernel.org Cc: "James E.J. Bottomley" <James.Bottomley@suse.de>
2010-06-02 20:28:52 +08:00
mutex_unlock(&tw_mutex);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
return retval;
} /* End tw_chrdev_ioctl() */
/* This function handles open for the character device */
Add a bunch of cycle_kernel_lock() calls All of the open() functions which don't need the BKL on their face may still depend on its acquisition to serialize opens against driver initialization. So make those functions acquire then release the BKL to be on the safe side. Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2008-05-19 05:32:43 +08:00
/* NOTE that this function races with remove. */
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
static int tw_chrdev_open(struct inode *inode, struct file *file)
{
unsigned int minor_number;
dprintk(KERN_WARNING "3w-xxxx: tw_ioctl_open()\n");
scsi: 3w-xxxx: fix a missing-check bug In tw_chrdev_ioctl(), the length of the data buffer is firstly copied from the userspace pointer 'argp' and saved to the kernel object 'data_buffer_length'. Then a security check is performed on it to make sure that the length is not more than 'TW_MAX_IOCTL_SECTORS * 512'. Otherwise, an error code -EINVAL is returned. If the security check is passed, the entire ioctl command is copied again from the 'argp' pointer and saved to the kernel object 'tw_ioctl'. Then, various operations are performed on 'tw_ioctl' according to the 'cmd'. Given that the 'argp' pointer resides in userspace, a malicious userspace process can race to change the buffer length between the two copies. This way, the user can bypass the security check and inject invalid data buffer length. This can cause potential security issues in the following execution. This patch checks for capable(CAP_SYS_ADMIN) in tw_chrdev_open() to avoid the above issues. Signed-off-by: Wenwen Wang <wang6495@umn.edu> Acked-by: Adam Radford <aradford@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08 08:54:01 +08:00
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
minor_number = iminor(inode);
if (minor_number >= tw_device_extension_count)
return -ENODEV;
return 0;
} /* End tw_chrdev_open() */
/* File operations struct for character device */
[PATCH] mark struct file_operations const 6 Many struct file_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12 16:55:34 +08:00
static const struct file_operations tw_fops = {
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
.owner = THIS_MODULE,
scsi: Push down BKL into ioctl functions Push down the bkl into ioctl functions on the scsi layer. [jkacur: Forward declaration missing ';'. Conflicting declaraction in megaraid.h changed Fixed missing inodes declarations] Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: John Kacur <jkacur@redhat.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
2010-04-27 06:24:01 +08:00
.unlocked_ioctl = tw_chrdev_ioctl,
3w-xxxx: Pass through compat mode ioctls This allows 32-bit userspace tools (tw_cli, smartctl) to work on a 64-bit system. The command buffer is opaque to us, so, no word size problems. Signed-off-by: Ryan C. Underwood <nemesis@icequake.net> Reviewed-by: Shane Seymour <shane.seymour@hpe.com> Reviewed-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-12-25 13:45:27 +08:00
#ifdef CONFIG_COMPAT
.compat_ioctl = tw_chrdev_ioctl,
#endif
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
.open = tw_chrdev_open,
llseek: automatically add .llseek fop All file_operations should get a .llseek operation so we can make nonseekable_open the default for future file operations without a .llseek pointer. The three cases that we can automatically detect are no_llseek, seq_lseek and default_llseek. For cases where we can we can automatically prove that the file offset is always ignored, we use noop_llseek, which maintains the current behavior of not returning an error from a seek. New drivers should normally not use noop_llseek but instead use no_llseek and call nonseekable_open at open time. Existing drivers can be converted to do the same when the maintainer knows for certain that no user code relies on calling seek on the device file. The generated code is often incorrectly indented and right now contains comments that clarify for each added line why a specific variant was chosen. In the version that gets submitted upstream, the comments will be gone and I will manually fix the indentation, because there does not seem to be a way to do that using coccinelle. Some amount of new code is currently sitting in linux-next that should get the same modifications, which I will do at the end of the merge window. Many thanks to Julia Lawall for helping me learn to write a semantic patch that does all this. ===== begin semantic patch ===== // This adds an llseek= method to all file operations, // as a preparation for making no_llseek the default. // // The rules are // - use no_llseek explicitly if we do nonseekable_open // - use seq_lseek for sequential files // - use default_llseek if we know we access f_pos // - use noop_llseek if we know we don't access f_pos, // but we still want to allow users to call lseek // @ open1 exists @ identifier nested_open; @@ nested_open(...) { <+... nonseekable_open(...) ...+> } @ open exists@ identifier open_f; identifier i, f; identifier open1.nested_open; @@ int open_f(struct inode *i, struct file *f) { <+... ( nonseekable_open(...) | nested_open(...) ) ...+> } @ read disable optional_qualifier exists @ identifier read_f; identifier f, p, s, off; type ssize_t, size_t, loff_t; expression E; identifier func; @@ ssize_t read_f(struct file *f, char *p, size_t s, loff_t *off) { <+... ( *off = E | *off += E | func(..., off, ...) | E = *off ) ...+> } @ read_no_fpos disable optional_qualifier exists @ identifier read_f; identifier f, p, s, off; type ssize_t, size_t, loff_t; @@ ssize_t read_f(struct file *f, char *p, size_t s, loff_t *off) { ... when != off } @ write @ identifier write_f; identifier f, p, s, off; type ssize_t, size_t, loff_t; expression E; identifier func; @@ ssize_t write_f(struct file *f, const char *p, size_t s, loff_t *off) { <+... ( *off = E | *off += E | func(..., off, ...) | E = *off ) ...+> } @ write_no_fpos @ identifier write_f; identifier f, p, s, off; type ssize_t, size_t, loff_t; @@ ssize_t write_f(struct file *f, const char *p, size_t s, loff_t *off) { ... when != off } @ fops0 @ identifier fops; @@ struct file_operations fops = { ... }; @ has_llseek depends on fops0 @ identifier fops0.fops; identifier llseek_f; @@ struct file_operations fops = { ... .llseek = llseek_f, ... }; @ has_read depends on fops0 @ identifier fops0.fops; identifier read_f; @@ struct file_operations fops = { ... .read = read_f, ... }; @ has_write depends on fops0 @ identifier fops0.fops; identifier write_f; @@ struct file_operations fops = { ... .write = write_f, ... }; @ has_open depends on fops0 @ identifier fops0.fops; identifier open_f; @@ struct file_operations fops = { ... .open = open_f, ... }; // use no_llseek if we call nonseekable_open //////////////////////////////////////////// @ nonseekable1 depends on !has_llseek && has_open @ identifier fops0.fops; identifier nso ~= "nonseekable_open"; @@ struct file_operations fops = { ... .open = nso, ... +.llseek = no_llseek, /* nonseekable */ }; @ nonseekable2 depends on !has_llseek @ identifier fops0.fops; identifier open.open_f; @@ struct file_operations fops = { ... .open = open_f, ... +.llseek = no_llseek, /* open uses nonseekable */ }; // use seq_lseek for sequential files ///////////////////////////////////// @ seq depends on !has_llseek @ identifier fops0.fops; identifier sr ~= "seq_read"; @@ struct file_operations fops = { ... .read = sr, ... +.llseek = seq_lseek, /* we have seq_read */ }; // use default_llseek if there is a readdir /////////////////////////////////////////// @ fops1 depends on !has_llseek && !nonseekable1 && !nonseekable2 && !seq @ identifier fops0.fops; identifier readdir_e; @@ // any other fop is used that changes pos struct file_operations fops = { ... .readdir = readdir_e, ... +.llseek = default_llseek, /* readdir is present */ }; // use default_llseek if at least one of read/write touches f_pos ///////////////////////////////////////////////////////////////// @ fops2 depends on !fops1 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @ identifier fops0.fops; identifier read.read_f; @@ // read fops use offset struct file_operations fops = { ... .read = read_f, ... +.llseek = default_llseek, /* read accesses f_pos */ }; @ fops3 depends on !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @ identifier fops0.fops; identifier write.write_f; @@ // write fops use offset struct file_operations fops = { ... .write = write_f, ... + .llseek = default_llseek, /* write accesses f_pos */ }; // Use noop_llseek if neither read nor write accesses f_pos /////////////////////////////////////////////////////////// @ fops4 depends on !fops1 && !fops2 && !fops3 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @ identifier fops0.fops; identifier read_no_fpos.read_f; identifier write_no_fpos.write_f; @@ // write fops use offset struct file_operations fops = { ... .write = write_f, .read = read_f, ... +.llseek = noop_llseek, /* read and write both use no f_pos */ }; @ depends on has_write && !has_read && !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @ identifier fops0.fops; identifier write_no_fpos.write_f; @@ struct file_operations fops = { ... .write = write_f, ... +.llseek = noop_llseek, /* write uses no f_pos */ }; @ depends on has_read && !has_write && !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @ identifier fops0.fops; identifier read_no_fpos.read_f; @@ struct file_operations fops = { ... .read = read_f, ... +.llseek = noop_llseek, /* read uses no f_pos */ }; @ depends on !has_read && !has_write && !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @ identifier fops0.fops; @@ struct file_operations fops = { ... +.llseek = noop_llseek, /* no read or write fn */ }; ===== End semantic patch ===== Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Julia Lawall <julia@diku.dk> Cc: Christoph Hellwig <hch@infradead.org>
2010-08-16 00:52:59 +08:00
.release = NULL,
.llseek = noop_llseek,
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
};
/* This function will free up device extension resources */
static void tw_free_device_extension(TW_Device_Extension *tw_dev)
{
dprintk(KERN_NOTICE "3w-xxxx: tw_free_device_extension()\n");
/* Free command packet and generic buffer memory */
if (tw_dev->command_packet_virtual_address[0])
scsi: 3w-xxx: fully convert to the generic DMA API The driver is currently using an odd mix of legacy PCI DMA API and generic DMA API calls, switch it over to the generic API entirely. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Adam Radford <aradford@gmail.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-10 23:58:50 +08:00
dma_free_coherent(&tw_dev->tw_pci_dev->dev,
sizeof(TW_Command) * TW_Q_LENGTH,
tw_dev->command_packet_virtual_address[0],
tw_dev->command_packet_physical_address[0]);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (tw_dev->alignment_virtual_address[0])
scsi: 3w-xxx: fully convert to the generic DMA API The driver is currently using an odd mix of legacy PCI DMA API and generic DMA API calls, switch it over to the generic API entirely. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Adam Radford <aradford@gmail.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-10 23:58:50 +08:00
dma_free_coherent(&tw_dev->tw_pci_dev->dev,
sizeof(TW_Sector) * TW_Q_LENGTH,
tw_dev->alignment_virtual_address[0],
tw_dev->alignment_physical_address[0]);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
} /* End tw_free_device_extension() */
/* This function will send an initconnection command to controller */
static int tw_initconnection(TW_Device_Extension *tw_dev, int message_credits)
{
unsigned long command_que_value;
TW_Command *command_packet;
TW_Response_Queue response_queue;
int request_id = 0;
dprintk(KERN_NOTICE "3w-xxxx: tw_initconnection()\n");
/* Initialize InitConnection command packet */
if (tw_dev->command_packet_virtual_address[request_id] == NULL) {
printk(KERN_WARNING "3w-xxxx: tw_initconnection(): Bad command packet virtual address.\n");
return 1;
}
command_packet = (TW_Command *)tw_dev->command_packet_virtual_address[request_id];
memset(command_packet, 0, sizeof(TW_Sector));
command_packet->opcode__sgloffset = TW_OPSGL_IN(0, TW_OP_INIT_CONNECTION);
command_packet->size = TW_INIT_COMMAND_PACKET_SIZE;
command_packet->request_id = request_id;
command_packet->status = 0x0;
command_packet->flags = 0x0;
command_packet->byte6.message_credits = message_credits;
command_packet->byte8.init_connection.response_queue_pointer = 0x0;
command_que_value = tw_dev->command_packet_physical_address[request_id];
if (command_que_value == 0) {
printk(KERN_WARNING "3w-xxxx: tw_initconnection(): Bad command packet physical address.\n");
return 1;
}
/* Send command packet to the board */
outl(command_que_value, TW_COMMAND_QUEUE_REG_ADDR(tw_dev));
/* Poll for completion */
if (tw_poll_status_gone(tw_dev, TW_STATUS_RESPONSE_QUEUE_EMPTY, 30) == 0) {
response_queue.value = inl(TW_RESPONSE_QUEUE_REG_ADDR(tw_dev));
request_id = TW_RESID_OUT(response_queue.response_id);
if (request_id != 0) {
/* unexpected request id */
printk(KERN_WARNING "3w-xxxx: tw_initconnection(): Unexpected request id.\n");
return 1;
}
if (command_packet->status != 0) {
/* bad response */
tw_decode_sense(tw_dev, request_id, 0);
return 1;
}
}
return 0;
} /* End tw_initconnection() */
/* Set a value in the features table */
static int tw_setfeature(TW_Device_Extension *tw_dev, int parm, int param_size,
unsigned char *val)
{
TW_Param *param;
TW_Command *command_packet;
TW_Response_Queue response_queue;
int request_id = 0;
unsigned long command_que_value;
unsigned long param_value;
/* Initialize SetParam command packet */
if (tw_dev->command_packet_virtual_address[request_id] == NULL) {
printk(KERN_WARNING "3w-xxxx: tw_setfeature(): Bad command packet virtual address.\n");
return 1;
}
command_packet = (TW_Command *)tw_dev->command_packet_virtual_address[request_id];
memset(command_packet, 0, sizeof(TW_Sector));
param = (TW_Param *)tw_dev->alignment_virtual_address[request_id];
command_packet->opcode__sgloffset = TW_OPSGL_IN(2, TW_OP_SET_PARAM);
param->table_id = 0x404; /* Features table */
param->parameter_id = parm;
param->parameter_size_bytes = param_size;
memcpy(param->data, val, param_size);
param_value = tw_dev->alignment_physical_address[request_id];
if (param_value == 0) {
printk(KERN_WARNING "3w-xxxx: tw_setfeature(): Bad alignment physical address.\n");
tw_dev->state[request_id] = TW_S_COMPLETED;
tw_state_request_finish(tw_dev, request_id);
tw_dev->srb[request_id]->result = (DID_OK << 16);
tw_dev->srb[request_id]->scsi_done(tw_dev->srb[request_id]);
}
command_packet->byte8.param.sgl[0].address = param_value;
command_packet->byte8.param.sgl[0].length = sizeof(TW_Sector);
command_packet->size = 4;
command_packet->request_id = request_id;
command_packet->byte6.parameter_count = 1;
command_que_value = tw_dev->command_packet_physical_address[request_id];
if (command_que_value == 0) {
printk(KERN_WARNING "3w-xxxx: tw_setfeature(): Bad command packet physical address.\n");
scsi: 3w-xxxx: fix indentation issue, add missing tab There is a tab missing on a return statement, add the missing tab. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-12-15 22:17:08 +08:00
return 1;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
/* Send command packet to the board */
outl(command_que_value, TW_COMMAND_QUEUE_REG_ADDR(tw_dev));
/* Poll for completion */
if (tw_poll_status_gone(tw_dev, TW_STATUS_RESPONSE_QUEUE_EMPTY, 30) == 0) {
response_queue.value = inl(TW_RESPONSE_QUEUE_REG_ADDR(tw_dev));
request_id = TW_RESID_OUT(response_queue.response_id);
if (request_id != 0) {
/* unexpected request id */
printk(KERN_WARNING "3w-xxxx: tw_setfeature(): Unexpected request id.\n");
return 1;
}
if (command_packet->status != 0) {
/* bad response */
tw_decode_sense(tw_dev, request_id, 0);
return 1;
}
}
return 0;
} /* End tw_setfeature() */
/* This function will reset a controller */
static int tw_reset_sequence(TW_Device_Extension *tw_dev)
{
int error = 0;
int tries = 0;
unsigned char c = 1;
/* Reset the board */
while (tries < TW_MAX_RESET_TRIES) {
TW_SOFT_RESET(tw_dev);
error = tw_aen_drain_queue(tw_dev);
if (error) {
printk(KERN_WARNING "3w-xxxx: scsi%d: AEN drain failed, retrying.\n", tw_dev->host->host_no);
tries++;
continue;
}
/* Check for controller errors */
if (tw_check_errors(tw_dev)) {
printk(KERN_WARNING "3w-xxxx: scsi%d: Controller errors found, retrying.\n", tw_dev->host->host_no);
tries++;
continue;
}
/* Now the controller is in a good state */
break;
}
if (tries >= TW_MAX_RESET_TRIES) {
printk(KERN_WARNING "3w-xxxx: scsi%d: Controller errors, card not responding, check all cabling.\n", tw_dev->host->host_no);
return 1;
}
error = tw_initconnection(tw_dev, TW_INIT_MESSAGE_CREDITS);
if (error) {
printk(KERN_WARNING "3w-xxxx: scsi%d: Connection initialization failed.\n", tw_dev->host->host_no);
return 1;
}
error = tw_setfeature(tw_dev, 2, 1, &c);
if (error) {
printk(KERN_WARNING "3w-xxxx: Unable to set features for card, probable old firmware or card.\n");
}
return 0;
} /* End tw_reset_sequence() */
/* This function will initialize the fields of a device extension */
static int tw_initialize_device_extension(TW_Device_Extension *tw_dev)
{
int i, error=0;
dprintk(KERN_NOTICE "3w-xxxx: tw_initialize_device_extension()\n");
/* Initialize command packet buffers */
error = tw_allocate_memory(tw_dev, sizeof(TW_Command), 0);
if (error) {
printk(KERN_WARNING "3w-xxxx: Command packet memory allocation failed.\n");
return 1;
}
/* Initialize generic buffer */
error = tw_allocate_memory(tw_dev, sizeof(TW_Sector), 1);
if (error) {
printk(KERN_WARNING "3w-xxxx: Generic memory allocation failed.\n");
return 1;
}
for (i=0;i<TW_Q_LENGTH;i++) {
tw_dev->free_queue[i] = i;
tw_dev->state[i] = TW_S_INITIAL;
}
tw_dev->pending_head = TW_Q_START;
tw_dev->pending_tail = TW_Q_START;
tw_dev->chrdev_request_id = TW_IOCTL_CHRDEV_FREE;
[SCSI] sem2mutex 3w-[x9]xxx Convert a the 3w-9xxx.c and 3w-xxxx.c drivers to use mutexes instead of semaphores. Untested, but compiles and looks obviously correct. Signed-off-by: Jes Sorensen <jes@sgi.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-01-11 21:39:45 +08:00
mutex_init(&tw_dev->ioctl_lock);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
init_waitqueue_head(&tw_dev->ioctl_wqueue);
return 0;
} /* End tw_initialize_device_extension() */
/* This function will reset a device extension */
[SCSI] 3ware 8000 serialize reset code The attached patch updates the 3ware 8000 driver: - Free irq handler in __tw_shutdown(). - Turn on RCD bit for caching mode page. - Serialize reset code. Signed-off-by: Adam Radford <linuxraid@amcc.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-01-05 10:16:56 +08:00
static int tw_reset_device_extension(TW_Device_Extension *tw_dev)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
int i = 0;
struct scsi_cmnd *srb;
unsigned long flags = 0;
dprintk(KERN_NOTICE "3w-xxxx: tw_reset_device_extension()\n");
set_bit(TW_IN_RESET, &tw_dev->flags);
TW_DISABLE_INTERRUPTS(tw_dev);
TW_MASK_COMMAND_INTERRUPT(tw_dev);
spin_lock_irqsave(tw_dev->host->host_lock, flags);
/* Abort all requests that are in progress */
for (i=0;i<TW_Q_LENGTH;i++) {
if ((tw_dev->state[i] != TW_S_FINISHED) &&
(tw_dev->state[i] != TW_S_INITIAL) &&
(tw_dev->state[i] != TW_S_COMPLETED)) {
srb = tw_dev->srb[i];
if (srb != NULL) {
srb->result = (DID_RESET << 16);
3w-xxxx: fix command completion race The 3w-xxxx driver needs to tear down the dma mappings before returning the command to the midlayer, as there is no guarantee the sglist and count are valid after that point. Also remove the dma mapping helpers which have another inherent race due to the request_id index. Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: stable@vger.kernel.org Acked-by: Adam Radford <aradford@gmail.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-04-23 15:48:50 +08:00
scsi_dma_unmap(srb);
srb->scsi_done(srb);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
}
}
/* Reset queues and counts */
for (i=0;i<TW_Q_LENGTH;i++) {
tw_dev->free_queue[i] = i;
tw_dev->state[i] = TW_S_INITIAL;
}
tw_dev->free_head = TW_Q_START;
tw_dev->free_tail = TW_Q_START;
tw_dev->posted_request_count = 0;
tw_dev->pending_request_count = 0;
tw_dev->pending_head = TW_Q_START;
tw_dev->pending_tail = TW_Q_START;
tw_dev->reset_print = 0;
spin_unlock_irqrestore(tw_dev->host->host_lock, flags);
if (tw_reset_sequence(tw_dev)) {
printk(KERN_WARNING "3w-xxxx: scsi%d: Reset sequence failed.\n", tw_dev->host->host_no);
return 1;
}
[SCSI] 3ware 8000 serialize reset code The attached patch updates the 3ware 8000 driver: - Free irq handler in __tw_shutdown(). - Turn on RCD bit for caching mode page. - Serialize reset code. Signed-off-by: Adam Radford <linuxraid@amcc.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-01-05 10:16:56 +08:00
TW_ENABLE_AND_CLEAR_INTERRUPTS(tw_dev);
clear_bit(TW_IN_RESET, &tw_dev->flags);
tw_dev->chrdev_request_id = TW_IOCTL_CHRDEV_FREE;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
return 0;
} /* End tw_reset_device_extension() */
/* This funciton returns unit geometry in cylinders/heads/sectors */
static int tw_scsi_biosparam(struct scsi_device *sdev, struct block_device *bdev,
sector_t capacity, int geom[])
{
int heads, sectors, cylinders;
TW_Device_Extension *tw_dev;
dprintk(KERN_NOTICE "3w-xxxx: tw_scsi_biosparam()\n");
tw_dev = (TW_Device_Extension *)sdev->host->hostdata;
heads = 64;
sectors = 32;
cylinders = sector_div(capacity, heads * sectors);
if (capacity >= 0x200000) {
heads = 255;
sectors = 63;
cylinders = sector_div(capacity, heads * sectors);
}
dprintk(KERN_NOTICE "3w-xxxx: tw_scsi_biosparam(): heads = %d, sectors = %d, cylinders = %d\n", heads, sectors, cylinders);
geom[0] = heads;
geom[1] = sectors;
geom[2] = cylinders;
return 0;
} /* End tw_scsi_biosparam() */
/* This is the new scsi eh reset function */
static int tw_scsi_eh_reset(struct scsi_cmnd *SCpnt)
{
TW_Device_Extension *tw_dev=NULL;
int retval = FAILED;
tw_dev = (TW_Device_Extension *)SCpnt->device->host->hostdata;
tw_dev->num_resets++;
[SCSI] use sfoo_printk() in drivers Rejections fixed up and Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-10-25 06:04:36 +08:00
sdev_printk(KERN_WARNING, SCpnt->device,
"WARNING: Command (0x%x) timed out, resetting card.\n",
SCpnt->cmnd[0]);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
[SCSI] 3ware 8000 serialize reset code The attached patch updates the 3ware 8000 driver: - Free irq handler in __tw_shutdown(). - Turn on RCD bit for caching mode page. - Serialize reset code. Signed-off-by: Adam Radford <linuxraid@amcc.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-01-05 10:16:56 +08:00
/* Make sure we are not issuing an ioctl or resetting from ioctl */
mutex_lock(&tw_dev->ioctl_lock);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/* Now reset the card and some of the device extension data */
[SCSI] 3ware 8000 serialize reset code The attached patch updates the 3ware 8000 driver: - Free irq handler in __tw_shutdown(). - Turn on RCD bit for caching mode page. - Serialize reset code. Signed-off-by: Adam Radford <linuxraid@amcc.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-01-05 10:16:56 +08:00
if (tw_reset_device_extension(tw_dev)) {
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
printk(KERN_WARNING "3w-xxxx: scsi%d: Reset failed.\n", tw_dev->host->host_no);
goto out;
}
retval = SUCCESS;
out:
[SCSI] 3ware 8000 serialize reset code The attached patch updates the 3ware 8000 driver: - Free irq handler in __tw_shutdown(). - Turn on RCD bit for caching mode page. - Serialize reset code. Signed-off-by: Adam Radford <linuxraid@amcc.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-01-05 10:16:56 +08:00
mutex_unlock(&tw_dev->ioctl_lock);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
return retval;
} /* End tw_scsi_eh_reset() */
/* This function handles scsi inquiry commands */
static int tw_scsiop_inquiry(TW_Device_Extension *tw_dev, int request_id)
{
TW_Param *param;
TW_Command *command_packet;
unsigned long command_que_value;
unsigned long param_value;
dprintk(KERN_NOTICE "3w-xxxx: tw_scsiop_inquiry()\n");
/* Initialize command packet */
command_packet = (TW_Command *)tw_dev->command_packet_virtual_address[request_id];
if (command_packet == NULL) {
printk(KERN_WARNING "3w-xxxx: tw_scsiop_inquiry(): Bad command packet virtual address.\n");
return 1;
}
memset(command_packet, 0, sizeof(TW_Sector));
command_packet->opcode__sgloffset = TW_OPSGL_IN(2, TW_OP_GET_PARAM);
command_packet->size = 4;
command_packet->request_id = request_id;
command_packet->status = 0;
command_packet->flags = 0;
command_packet->byte6.parameter_count = 1;
/* Now setup the param */
if (tw_dev->alignment_virtual_address[request_id] == NULL) {
printk(KERN_WARNING "3w-xxxx: tw_scsiop_inquiry(): Bad alignment virtual address.\n");
return 1;
}
param = (TW_Param *)tw_dev->alignment_virtual_address[request_id];
memset(param, 0, sizeof(TW_Sector));
param->table_id = 3; /* unit summary table */
param->parameter_id = 3; /* unitsstatus parameter */
param->parameter_size_bytes = TW_MAX_UNITS;
param_value = tw_dev->alignment_physical_address[request_id];
if (param_value == 0) {
printk(KERN_WARNING "3w-xxxx: tw_scsiop_inquiry(): Bad alignment physical address.\n");
return 1;
}
command_packet->byte8.param.sgl[0].address = param_value;
command_packet->byte8.param.sgl[0].length = sizeof(TW_Sector);
command_que_value = tw_dev->command_packet_physical_address[request_id];
if (command_que_value == 0) {
printk(KERN_WARNING "3w-xxxx: tw_scsiop_inquiry(): Bad command packet physical address.\n");
return 1;
}
/* Now try to post the command packet */
tw_post_command_packet(tw_dev, request_id);
return 0;
} /* End tw_scsiop_inquiry() */
[SCSI] fix 3ware raid emulated commands The 3ware emulated commands all expect they are executing in the use_sg == 0 case, which isn't true either in the block layer rework or an SG_IO ioctl. Fix this by adding the correct kmapping of the first element in the sg list. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-06-28 22:18:21 +08:00
static void tw_transfer_internal(TW_Device_Extension *tw_dev, int request_id,
void *data, unsigned int len)
{
[SCSI] 3w-xxxx: remove unnecessary local_irq_save/restore for scsi sg copy API Since the commit 50bed2e2862a8f3a4f7d683d0d27292e71ef18b9 (sg: disable interrupts inside sg_copy_buffer), no need to disable interrupts before calling scsi_sg_copy_from_buffer. So we can simplify tw_transfer_internal, which disables interrupts just for scsi_sg_copy_from_buffer. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>\ Acked-by: Adam Radford <linuxraid@amcc.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-10-09 10:25:42 +08:00
scsi_sg_copy_from_buffer(tw_dev->srb[request_id], data, len);
[SCSI] fix 3ware raid emulated commands The 3ware emulated commands all expect they are executing in the use_sg == 0 case, which isn't true either in the block layer rework or an SG_IO ioctl. Fix this by adding the correct kmapping of the first element in the sg list. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-06-28 22:18:21 +08:00
}
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/* This function is called by the isr to complete an inquiry command */
static int tw_scsiop_inquiry_complete(TW_Device_Extension *tw_dev, int request_id)
{
unsigned char *is_unit_present;
[SCSI] fix 3ware raid emulated commands The 3ware emulated commands all expect they are executing in the use_sg == 0 case, which isn't true either in the block layer rework or an SG_IO ioctl. Fix this by adding the correct kmapping of the first element in the sg list. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-06-28 22:18:21 +08:00
unsigned char request_buffer[36];
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
TW_Param *param;
dprintk(KERN_NOTICE "3w-xxxx: tw_scsiop_inquiry_complete()\n");
[SCSI] fix 3ware raid emulated commands The 3ware emulated commands all expect they are executing in the use_sg == 0 case, which isn't true either in the block layer rework or an SG_IO ioctl. Fix this by adding the correct kmapping of the first element in the sg list. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-06-28 22:18:21 +08:00
memset(request_buffer, 0, sizeof(request_buffer));
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
request_buffer[0] = TYPE_DISK; /* Peripheral device type */
request_buffer[1] = 0; /* Device type modifier */
request_buffer[2] = 0; /* No ansi/iso compliance */
request_buffer[4] = 31; /* Additional length */
memcpy(&request_buffer[8], "3ware ", 8); /* Vendor ID */
sprintf(&request_buffer[16], "Logical Disk %-2d ", tw_dev->srb[request_id]->device->id);
memcpy(&request_buffer[32], TW_DRIVER_VERSION, 3);
[SCSI] fix 3ware raid emulated commands The 3ware emulated commands all expect they are executing in the use_sg == 0 case, which isn't true either in the block layer rework or an SG_IO ioctl. Fix this by adding the correct kmapping of the first element in the sg list. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-06-28 22:18:21 +08:00
tw_transfer_internal(tw_dev, request_id, request_buffer,
sizeof(request_buffer));
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
param = (TW_Param *)tw_dev->alignment_virtual_address[request_id];
if (param == NULL) {
printk(KERN_WARNING "3w-xxxx: tw_scsiop_inquiry_complete(): Bad alignment virtual address.\n");
return 1;
}
is_unit_present = &(param->data[0]);
if (is_unit_present[tw_dev->srb[request_id]->device->id] & TW_UNIT_ONLINE) {
tw_dev->is_unit_present[tw_dev->srb[request_id]->device->id] = 1;
} else {
tw_dev->is_unit_present[tw_dev->srb[request_id]->device->id] = 0;
tw_dev->srb[request_id]->result = (DID_BAD_TARGET << 16);
return TW_ISR_DONT_RESULT;
}
return 0;
} /* End tw_scsiop_inquiry_complete() */
/* This function handles scsi mode_sense commands */
static int tw_scsiop_mode_sense(TW_Device_Extension *tw_dev, int request_id)
{
TW_Param *param;
TW_Command *command_packet;
unsigned long command_que_value;
unsigned long param_value;
dprintk(KERN_NOTICE "3w-xxxx: tw_scsiop_mode_sense()\n");
/* Only page control = 0, page code = 0x8 (cache page) supported */
if (tw_dev->srb[request_id]->cmnd[2] != 0x8) {
tw_dev->state[request_id] = TW_S_COMPLETED;
tw_state_request_finish(tw_dev, request_id);
tw_dev->srb[request_id]->result = (DID_OK << 16);
tw_dev->srb[request_id]->scsi_done(tw_dev->srb[request_id]);
return 0;
}
/* Now read firmware cache setting for this unit */
command_packet = (TW_Command *)tw_dev->command_packet_virtual_address[request_id];
if (command_packet == NULL) {
printk(KERN_WARNING "3w-xxxx: tw_scsiop_mode_sense(): Bad command packet virtual address.\n");
return 1;
}
/* Setup the command packet */
memset(command_packet, 0, sizeof(TW_Sector));
command_packet->opcode__sgloffset = TW_OPSGL_IN(2, TW_OP_GET_PARAM);
command_packet->size = 4;
command_packet->request_id = request_id;
command_packet->status = 0;
command_packet->flags = 0;
command_packet->byte6.parameter_count = 1;
/* Setup the param */
if (tw_dev->alignment_virtual_address[request_id] == NULL) {
printk(KERN_WARNING "3w-xxxx: tw_scsiop_mode_sense(): Bad alignment virtual address.\n");
return 1;
}
param = (TW_Param *)tw_dev->alignment_virtual_address[request_id];
memset(param, 0, sizeof(TW_Sector));
param->table_id = TW_UNIT_INFORMATION_TABLE_BASE + tw_dev->srb[request_id]->device->id;
param->parameter_id = 7; /* unit flags */
param->parameter_size_bytes = 1;
param_value = tw_dev->alignment_physical_address[request_id];
if (param_value == 0) {
printk(KERN_WARNING "3w-xxxx: tw_scsiop_mode_sense(): Bad alignment physical address.\n");
return 1;
}
command_packet->byte8.param.sgl[0].address = param_value;
command_packet->byte8.param.sgl[0].length = sizeof(TW_Sector);
command_que_value = tw_dev->command_packet_physical_address[request_id];
if (command_que_value == 0) {
printk(KERN_WARNING "3w-xxxx: tw_scsiop_mode_sense(): Bad command packet physical address.\n");
return 1;
}
/* Now try to post the command packet */
tw_post_command_packet(tw_dev, request_id);
return 0;
} /* End tw_scsiop_mode_sense() */
/* This function is called by the isr to complete a mode sense command */
static int tw_scsiop_mode_sense_complete(TW_Device_Extension *tw_dev, int request_id)
{
TW_Param *param;
unsigned char *flags;
[SCSI] fix 3ware raid emulated commands The 3ware emulated commands all expect they are executing in the use_sg == 0 case, which isn't true either in the block layer rework or an SG_IO ioctl. Fix this by adding the correct kmapping of the first element in the sg list. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-06-28 22:18:21 +08:00
unsigned char request_buffer[8];
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
dprintk(KERN_NOTICE "3w-xxxx: tw_scsiop_mode_sense_complete()\n");
param = (TW_Param *)tw_dev->alignment_virtual_address[request_id];
if (param == NULL) {
printk(KERN_WARNING "3w-xxxx: tw_scsiop_mode_sense_complete(): Bad alignment virtual address.\n");
return 1;
}
flags = (char *)&(param->data[0]);
[SCSI] fix 3ware raid emulated commands The 3ware emulated commands all expect they are executing in the use_sg == 0 case, which isn't true either in the block layer rework or an SG_IO ioctl. Fix this by adding the correct kmapping of the first element in the sg list. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-06-28 22:18:21 +08:00
memset(request_buffer, 0, sizeof(request_buffer));
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
request_buffer[0] = 0xf; /* mode data length */
request_buffer[1] = 0; /* default medium type */
request_buffer[2] = 0x10; /* dpo/fua support on */
request_buffer[3] = 0; /* no block descriptors */
request_buffer[4] = 0x8; /* caching page */
request_buffer[5] = 0xa; /* page length */
if (*flags & 0x1)
[SCSI] 3ware 8000 serialize reset code The attached patch updates the 3ware 8000 driver: - Free irq handler in __tw_shutdown(). - Turn on RCD bit for caching mode page. - Serialize reset code. Signed-off-by: Adam Radford <linuxraid@amcc.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-01-05 10:16:56 +08:00
request_buffer[6] = 0x5; /* WCE on, RCD on */
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
else
[SCSI] 3ware 8000 serialize reset code The attached patch updates the 3ware 8000 driver: - Free irq handler in __tw_shutdown(). - Turn on RCD bit for caching mode page. - Serialize reset code. Signed-off-by: Adam Radford <linuxraid@amcc.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-01-05 10:16:56 +08:00
request_buffer[6] = 0x1; /* WCE off, RCD on */
[SCSI] fix 3ware raid emulated commands The 3ware emulated commands all expect they are executing in the use_sg == 0 case, which isn't true either in the block layer rework or an SG_IO ioctl. Fix this by adding the correct kmapping of the first element in the sg list. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-06-28 22:18:21 +08:00
tw_transfer_internal(tw_dev, request_id, request_buffer,
sizeof(request_buffer));
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
return 0;
} /* End tw_scsiop_mode_sense_complete() */
/* This function handles scsi read_capacity commands */
static int tw_scsiop_read_capacity(TW_Device_Extension *tw_dev, int request_id)
{
TW_Param *param;
TW_Command *command_packet;
unsigned long command_que_value;
unsigned long param_value;
dprintk(KERN_NOTICE "3w-xxxx: tw_scsiop_read_capacity()\n");
/* Initialize command packet */
command_packet = (TW_Command *)tw_dev->command_packet_virtual_address[request_id];
if (command_packet == NULL) {
dprintk(KERN_NOTICE "3w-xxxx: tw_scsiop_read_capacity(): Bad command packet virtual address.\n");
return 1;
}
memset(command_packet, 0, sizeof(TW_Sector));
command_packet->opcode__sgloffset = TW_OPSGL_IN(2, TW_OP_GET_PARAM);
command_packet->size = 4;
command_packet->request_id = request_id;
command_packet->unit__hostid = TW_UNITHOST_IN(0, tw_dev->srb[request_id]->device->id);
command_packet->status = 0;
command_packet->flags = 0;
command_packet->byte6.block_count = 1;
/* Now setup the param */
if (tw_dev->alignment_virtual_address[request_id] == NULL) {
dprintk(KERN_NOTICE "3w-xxxx: tw_scsiop_read_capacity(): Bad alignment virtual address.\n");
return 1;
}
param = (TW_Param *)tw_dev->alignment_virtual_address[request_id];
memset(param, 0, sizeof(TW_Sector));
param->table_id = TW_UNIT_INFORMATION_TABLE_BASE +
tw_dev->srb[request_id]->device->id;
param->parameter_id = 4; /* unitcapacity parameter */
param->parameter_size_bytes = 4;
param_value = tw_dev->alignment_physical_address[request_id];
if (param_value == 0) {
dprintk(KERN_NOTICE "3w-xxxx: tw_scsiop_read_capacity(): Bad alignment physical address.\n");
return 1;
}
command_packet->byte8.param.sgl[0].address = param_value;
command_packet->byte8.param.sgl[0].length = sizeof(TW_Sector);
command_que_value = tw_dev->command_packet_physical_address[request_id];
if (command_que_value == 0) {
dprintk(KERN_NOTICE "3w-xxxx: tw_scsiop_read_capacity(): Bad command packet physical address.\n");
return 1;
}
/* Now try to post the command to the board */
tw_post_command_packet(tw_dev, request_id);
return 0;
} /* End tw_scsiop_read_capacity() */
/* This function is called by the isr to complete a readcapacity command */
static int tw_scsiop_read_capacity_complete(TW_Device_Extension *tw_dev, int request_id)
{
unsigned char *param_data;
u32 capacity;
[SCSI] fix 3ware raid emulated commands The 3ware emulated commands all expect they are executing in the use_sg == 0 case, which isn't true either in the block layer rework or an SG_IO ioctl. Fix this by adding the correct kmapping of the first element in the sg list. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-06-28 22:18:21 +08:00
char buff[8];
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
TW_Param *param;
dprintk(KERN_NOTICE "3w-xxxx: tw_scsiop_read_capacity_complete()\n");
[SCSI] fix 3ware raid emulated commands The 3ware emulated commands all expect they are executing in the use_sg == 0 case, which isn't true either in the block layer rework or an SG_IO ioctl. Fix this by adding the correct kmapping of the first element in the sg list. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-06-28 22:18:21 +08:00
memset(buff, 0, sizeof(buff));
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
param = (TW_Param *)tw_dev->alignment_virtual_address[request_id];
if (param == NULL) {
printk(KERN_WARNING "3w-xxxx: tw_scsiop_read_capacity_complete(): Bad alignment virtual address.\n");
return 1;
}
param_data = &(param->data[0]);
capacity = (param_data[3] << 24) | (param_data[2] << 16) |
(param_data[1] << 8) | param_data[0];
/* Subtract one sector to fix get last sector ioctl */
capacity -= 1;
dprintk(KERN_NOTICE "3w-xxxx: tw_scsiop_read_capacity_complete(): Capacity = 0x%x.\n", capacity);
/* Number of LBA's */
buff[0] = (capacity >> 24);
buff[1] = (capacity >> 16) & 0xff;
buff[2] = (capacity >> 8) & 0xff;
buff[3] = capacity & 0xff;
/* Block size in bytes (512) */
buff[4] = (TW_BLOCK_SIZE >> 24);
buff[5] = (TW_BLOCK_SIZE >> 16) & 0xff;
buff[6] = (TW_BLOCK_SIZE >> 8) & 0xff;
buff[7] = TW_BLOCK_SIZE & 0xff;
[SCSI] fix 3ware raid emulated commands The 3ware emulated commands all expect they are executing in the use_sg == 0 case, which isn't true either in the block layer rework or an SG_IO ioctl. Fix this by adding the correct kmapping of the first element in the sg list. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-06-28 22:18:21 +08:00
tw_transfer_internal(tw_dev, request_id, buff, sizeof(buff));
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
return 0;
} /* End tw_scsiop_read_capacity_complete() */
/* This function handles scsi read or write commands */
static int tw_scsiop_read_write(TW_Device_Extension *tw_dev, int request_id)
{
TW_Command *command_packet;
unsigned long command_que_value;
[SCSI] 3w-xxxx: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Jens Axboe <jens.axboe@oracle.com> did the for_each_sg cleanup. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Adam Radford <linuxraid@amcc.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-14 19:20:27 +08:00
u32 lba = 0x0, num_sectors = 0x0;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
int i, use_sg;
struct scsi_cmnd *srb;
[SCSI] 3w-xxxx: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Jens Axboe <jens.axboe@oracle.com> did the for_each_sg cleanup. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Adam Radford <linuxraid@amcc.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-14 19:20:27 +08:00
struct scatterlist *sglist, *sg;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
dprintk(KERN_NOTICE "3w-xxxx: tw_scsiop_read_write()\n");
[SCSI] 3w-xxxx: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Jens Axboe <jens.axboe@oracle.com> did the for_each_sg cleanup. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Adam Radford <linuxraid@amcc.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-14 19:20:27 +08:00
srb = tw_dev->srb[request_id];
sglist = scsi_sglist(srb);
if (!sglist) {
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
printk(KERN_WARNING "3w-xxxx: tw_scsiop_read_write(): Request buffer NULL.\n");
return 1;
}
/* Initialize command packet */
command_packet = (TW_Command *)tw_dev->command_packet_virtual_address[request_id];
if (command_packet == NULL) {
dprintk(KERN_NOTICE "3w-xxxx: tw_scsiop_read_write(): Bad command packet virtual address.\n");
return 1;
}
if (srb->cmnd[0] == READ_6 || srb->cmnd[0] == READ_10) {
command_packet->opcode__sgloffset = TW_OPSGL_IN(3, TW_OP_READ);
} else {
command_packet->opcode__sgloffset = TW_OPSGL_IN(3, TW_OP_WRITE);
}
command_packet->size = 3;
command_packet->request_id = request_id;
command_packet->unit__hostid = TW_UNITHOST_IN(0, srb->device->id);
command_packet->status = 0;
command_packet->flags = 0;
if (srb->cmnd[0] == WRITE_10) {
if ((srb->cmnd[1] & 0x8) || (srb->cmnd[1] & 0x10))
command_packet->flags = 1;
}
if (srb->cmnd[0] == READ_6 || srb->cmnd[0] == WRITE_6) {
lba = ((u32)srb->cmnd[1] << 16) | ((u32)srb->cmnd[2] << 8) | (u32)srb->cmnd[3];
num_sectors = (u32)srb->cmnd[4];
} else {
lba = ((u32)srb->cmnd[2] << 24) | ((u32)srb->cmnd[3] << 16) | ((u32)srb->cmnd[4] << 8) | (u32)srb->cmnd[5];
num_sectors = (u32)srb->cmnd[8] | ((u32)srb->cmnd[7] << 8);
}
/* Update sector statistic */
tw_dev->sector_count = num_sectors;
if (tw_dev->sector_count > tw_dev->max_sector_count)
tw_dev->max_sector_count = tw_dev->sector_count;
dprintk(KERN_NOTICE "3w-xxxx: tw_scsiop_read_write(): lba = 0x%x num_sectors = 0x%x\n", lba, num_sectors);
command_packet->byte8.io.lba = lba;
command_packet->byte6.block_count = num_sectors;
3w-xxxx: fix command completion race The 3w-xxxx driver needs to tear down the dma mappings before returning the command to the midlayer, as there is no guarantee the sglist and count are valid after that point. Also remove the dma mapping helpers which have another inherent race due to the request_id index. Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: stable@vger.kernel.org Acked-by: Adam Radford <aradford@gmail.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-04-23 15:48:50 +08:00
use_sg = scsi_dma_map(srb);
if (use_sg <= 0)
[SCSI] 3w-xxxx: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Jens Axboe <jens.axboe@oracle.com> did the for_each_sg cleanup. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Adam Radford <linuxraid@amcc.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-14 19:20:27 +08:00
return 1;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
[SCSI] 3w-xxxx: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Jens Axboe <jens.axboe@oracle.com> did the for_each_sg cleanup. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Adam Radford <linuxraid@amcc.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-14 19:20:27 +08:00
scsi_for_each_sg(tw_dev->srb[request_id], sg, use_sg, i) {
command_packet->byte8.io.sgl[i].address = sg_dma_address(sg);
command_packet->byte8.io.sgl[i].length = sg_dma_len(sg);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
command_packet->size+=2;
}
/* Update SG statistics */
[SCSI] 3w-xxxx: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Jens Axboe <jens.axboe@oracle.com> did the for_each_sg cleanup. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Adam Radford <linuxraid@amcc.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-14 19:20:27 +08:00
tw_dev->sgl_entries = scsi_sg_count(tw_dev->srb[request_id]);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (tw_dev->sgl_entries > tw_dev->max_sgl_entries)
tw_dev->max_sgl_entries = tw_dev->sgl_entries;
command_que_value = tw_dev->command_packet_physical_address[request_id];
if (command_que_value == 0) {
dprintk(KERN_WARNING "3w-xxxx: tw_scsiop_read_write(): Bad command packet physical address.\n");
return 1;
}
/* Now try to post the command to the board */
tw_post_command_packet(tw_dev, request_id);
return 0;
} /* End tw_scsiop_read_write() */
/* This function will handle the request sense scsi command */
static int tw_scsiop_request_sense(TW_Device_Extension *tw_dev, int request_id)
{
[SCSI] 3w-xxxx: fix oops caused by incorrect REQUEST_SENSE handling 3w-xxxx emulates a REQUEST_SENSE response by simply returning nothing. Unfortunately, it's assuming that the REQUEST_SENSE command is implemented with use_sg == 0, which is no longer the case. The oops occurs because it's clearing the scatterlist in request_buffer instead of the memory region. This is fixed by using tw_transfer_internal() to transfer correctly to the scatterlist. Acked-by: adam radford <aradford@gmail.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-04-07 00:14:56 +08:00
char request_buffer[18];
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
dprintk(KERN_NOTICE "3w-xxxx: tw_scsiop_request_sense()\n");
[SCSI] 3w-xxxx: fix oops caused by incorrect REQUEST_SENSE handling 3w-xxxx emulates a REQUEST_SENSE response by simply returning nothing. Unfortunately, it's assuming that the REQUEST_SENSE command is implemented with use_sg == 0, which is no longer the case. The oops occurs because it's clearing the scatterlist in request_buffer instead of the memory region. This is fixed by using tw_transfer_internal() to transfer correctly to the scatterlist. Acked-by: adam radford <aradford@gmail.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-04-07 00:14:56 +08:00
memset(request_buffer, 0, sizeof(request_buffer));
request_buffer[0] = 0x70; /* Immediate fixed format */
request_buffer[7] = 10; /* minimum size per SPC: 18 bytes */
/* leave all other fields zero, giving effectively NO_SENSE return */
tw_transfer_internal(tw_dev, request_id, request_buffer,
sizeof(request_buffer));
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
tw_dev->state[request_id] = TW_S_COMPLETED;
tw_state_request_finish(tw_dev, request_id);
/* If we got a request_sense, we probably want a reset, return error */
tw_dev->srb[request_id]->result = (DID_ERROR << 16);
tw_dev->srb[request_id]->scsi_done(tw_dev->srb[request_id]);
return 0;
} /* End tw_scsiop_request_sense() */
/* This function will handle synchronize cache scsi command */
static int tw_scsiop_synchronize_cache(TW_Device_Extension *tw_dev, int request_id)
{
TW_Command *command_packet;
unsigned long command_que_value;
dprintk(KERN_NOTICE "3w-xxxx: tw_scsiop_synchronize_cache()\n");
/* Send firmware flush command for this unit */
command_packet = (TW_Command *)tw_dev->command_packet_virtual_address[request_id];
if (command_packet == NULL) {
printk(KERN_WARNING "3w-xxxx: tw_scsiop_synchronize_cache(): Bad command packet virtual address.\n");
return 1;
}
/* Setup the command packet */
memset(command_packet, 0, sizeof(TW_Sector));
command_packet->opcode__sgloffset = TW_OPSGL_IN(0, TW_OP_FLUSH_CACHE);
command_packet->size = 2;
command_packet->request_id = request_id;
command_packet->unit__hostid = TW_UNITHOST_IN(0, tw_dev->srb[request_id]->device->id);
command_packet->status = 0;
command_packet->flags = 0;
command_packet->byte6.parameter_count = 1;
command_que_value = tw_dev->command_packet_physical_address[request_id];
if (command_que_value == 0) {
printk(KERN_WARNING "3w-xxxx: tw_scsiop_synchronize_cache(): Bad command packet physical address.\n");
return 1;
}
/* Now try to post the command packet */
tw_post_command_packet(tw_dev, request_id);
return 0;
} /* End tw_scsiop_synchronize_cache() */
/* This function will handle test unit ready scsi command */
static int tw_scsiop_test_unit_ready(TW_Device_Extension *tw_dev, int request_id)
{
TW_Param *param;
TW_Command *command_packet;
unsigned long command_que_value;
unsigned long param_value;
dprintk(KERN_NOTICE "3w-xxxx: tw_scsiop_test_unit_ready()\n");
/* Initialize command packet */
command_packet = (TW_Command *)tw_dev->command_packet_virtual_address[request_id];
if (command_packet == NULL) {
printk(KERN_WARNING "3w-xxxx: tw_scsiop_test_unit_ready(): Bad command packet virtual address.\n");
return 1;
}
memset(command_packet, 0, sizeof(TW_Sector));
command_packet->opcode__sgloffset = TW_OPSGL_IN(2, TW_OP_GET_PARAM);
command_packet->size = 4;
command_packet->request_id = request_id;
command_packet->status = 0;
command_packet->flags = 0;
command_packet->byte6.parameter_count = 1;
/* Now setup the param */
if (tw_dev->alignment_virtual_address[request_id] == NULL) {
printk(KERN_WARNING "3w-xxxx: tw_scsiop_test_unit_ready(): Bad alignment virtual address.\n");
return 1;
}
param = (TW_Param *)tw_dev->alignment_virtual_address[request_id];
memset(param, 0, sizeof(TW_Sector));
param->table_id = 3; /* unit summary table */
param->parameter_id = 3; /* unitsstatus parameter */
param->parameter_size_bytes = TW_MAX_UNITS;
param_value = tw_dev->alignment_physical_address[request_id];
if (param_value == 0) {
printk(KERN_WARNING "3w-xxxx: tw_scsiop_test_unit_ready(): Bad alignment physical address.\n");
return 1;
}
command_packet->byte8.param.sgl[0].address = param_value;
command_packet->byte8.param.sgl[0].length = sizeof(TW_Sector);
command_que_value = tw_dev->command_packet_physical_address[request_id];
if (command_que_value == 0) {
printk(KERN_WARNING "3w-xxxx: tw_scsiop_test_unit_ready(): Bad command packet physical address.\n");
return 1;
}
/* Now try to post the command packet */
tw_post_command_packet(tw_dev, request_id);
return 0;
} /* End tw_scsiop_test_unit_ready() */
/* This function is called by the isr to complete a testunitready command */
static int tw_scsiop_test_unit_ready_complete(TW_Device_Extension *tw_dev, int request_id)
{
unsigned char *is_unit_present;
TW_Param *param;
dprintk(KERN_WARNING "3w-xxxx: tw_scsiop_test_unit_ready_complete()\n");
param = (TW_Param *)tw_dev->alignment_virtual_address[request_id];
if (param == NULL) {
printk(KERN_WARNING "3w-xxxx: tw_scsiop_test_unit_ready_complete(): Bad alignment virtual address.\n");
return 1;
}
is_unit_present = &(param->data[0]);
if (is_unit_present[tw_dev->srb[request_id]->device->id] & TW_UNIT_ONLINE) {
tw_dev->is_unit_present[tw_dev->srb[request_id]->device->id] = 1;
} else {
tw_dev->is_unit_present[tw_dev->srb[request_id]->device->id] = 0;
tw_dev->srb[request_id]->result = (DID_BAD_TARGET << 16);
return TW_ISR_DONT_RESULT;
}
return 0;
} /* End tw_scsiop_test_unit_ready_complete() */
/* This is the main scsi queue function to handle scsi opcodes */
SCSI host lock push-down Move the mid-layer's ->queuecommand() invocation from being locked with the host lock to being unlocked to facilitate speeding up the critical path for drivers who don't need this lock taken anyway. The patch below presents a simple SCSI host lock push-down as an equivalent transformation. No locking or other behavior should change with this patch. All existing bugs and locking orders are preserved. Additionally, add one parameter to queuecommand, struct Scsi_Host * and remove one parameter from queuecommand, void (*done)(struct scsi_cmnd *) Scsi_Host* is a convenient pointer that most host drivers need anyway, and 'done' is redundant to struct scsi_cmnd->scsi_done. Minimal code disturbance was attempted with this change. Most drivers needed only two one-line modifications for their host lock push-down. Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Acked-by: James Bottomley <James.Bottomley@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-16 15:10:29 +08:00
static int tw_scsi_queue_lck(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
unsigned char *command = SCpnt->cmnd;
int request_id = 0;
int retval = 1;
TW_Device_Extension *tw_dev = (TW_Device_Extension *)SCpnt->device->host->hostdata;
[SCSI] 3ware 8000 serialize reset code The attached patch updates the 3ware 8000 driver: - Free irq handler in __tw_shutdown(). - Turn on RCD bit for caching mode page. - Serialize reset code. Signed-off-by: Adam Radford <linuxraid@amcc.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-01-05 10:16:56 +08:00
/* If we are resetting due to timed out ioctl, report as busy */
if (test_bit(TW_IN_RESET, &tw_dev->flags))
return SCSI_MLQUEUE_HOST_BUSY;
scsi: core: remove Scsi_Cmnd typedef This will make subsequent refactoring easier to handle. Note: this patch is nowhere checkpatch clean. Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Bart Van Assche <bart.vanassche@wdc.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-06-13 15:53:47 +08:00
/* Save done function into struct scsi_cmnd */
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
SCpnt->scsi_done = done;
/* Queue the command and get a request id */
tw_state_request_start(tw_dev, &request_id);
/* Save the scsi command for use by the ISR */
tw_dev->srb[request_id] = SCpnt;
switch (*command) {
case READ_10:
case READ_6:
case WRITE_10:
case WRITE_6:
dprintk(KERN_NOTICE "3w-xxxx: tw_scsi_queue(): caught READ/WRITE.\n");
retval = tw_scsiop_read_write(tw_dev, request_id);
break;
case TEST_UNIT_READY:
dprintk(KERN_NOTICE "3w-xxxx: tw_scsi_queue(): caught TEST_UNIT_READY.\n");
retval = tw_scsiop_test_unit_ready(tw_dev, request_id);
break;
case INQUIRY:
dprintk(KERN_NOTICE "3w-xxxx: tw_scsi_queue(): caught INQUIRY.\n");
retval = tw_scsiop_inquiry(tw_dev, request_id);
break;
case READ_CAPACITY:
dprintk(KERN_NOTICE "3w-xxxx: tw_scsi_queue(): caught READ_CAPACITY.\n");
retval = tw_scsiop_read_capacity(tw_dev, request_id);
break;
case REQUEST_SENSE:
dprintk(KERN_NOTICE "3w-xxxx: tw_scsi_queue(): caught REQUEST_SENSE.\n");
retval = tw_scsiop_request_sense(tw_dev, request_id);
break;
case MODE_SENSE:
dprintk(KERN_NOTICE "3w-xxxx: tw_scsi_queue(): caught MODE_SENSE.\n");
retval = tw_scsiop_mode_sense(tw_dev, request_id);
break;
case SYNCHRONIZE_CACHE:
dprintk(KERN_NOTICE "3w-xxxx: tw_scsi_queue(): caught SYNCHRONIZE_CACHE.\n");
retval = tw_scsiop_synchronize_cache(tw_dev, request_id);
break;
case TW_IOCTL:
printk(KERN_WARNING "3w-xxxx: SCSI_IOCTL_SEND_COMMAND deprecated, please update your 3ware tools.\n");
break;
default:
printk(KERN_NOTICE "3w-xxxx: scsi%d: Unknown scsi opcode: 0x%x\n", tw_dev->host->host_no, *command);
tw_dev->state[request_id] = TW_S_COMPLETED;
tw_state_request_finish(tw_dev, request_id);
[SCSI] 3w-xxxx: Create sense buffer for unsupported commands Make the driver return appropriate sense data when an unsupported operation is queued. This will cause the SCSI layer to stop issuing the offending command. Reported-by: Florian Westphal <fw@strlen.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Acked-by: Adam Radford <aradford@gmail.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-04-30 00:13:01 +08:00
SCpnt->result = (DRIVER_SENSE << 24) | SAM_STAT_CHECK_CONDITION;
scsi_build_sense_buffer(1, SCpnt->sense_buffer, ILLEGAL_REQUEST, 0x20, 0);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
done(SCpnt);
retval = 0;
}
if (retval) {
tw_dev->state[request_id] = TW_S_COMPLETED;
tw_state_request_finish(tw_dev, request_id);
SCpnt->result = (DID_ERROR << 16);
done(SCpnt);
retval = 0;
}
return retval;
} /* End tw_scsi_queue() */
SCSI host lock push-down Move the mid-layer's ->queuecommand() invocation from being locked with the host lock to being unlocked to facilitate speeding up the critical path for drivers who don't need this lock taken anyway. The patch below presents a simple SCSI host lock push-down as an equivalent transformation. No locking or other behavior should change with this patch. All existing bugs and locking orders are preserved. Additionally, add one parameter to queuecommand, struct Scsi_Host * and remove one parameter from queuecommand, void (*done)(struct scsi_cmnd *) Scsi_Host* is a convenient pointer that most host drivers need anyway, and 'done' is redundant to struct scsi_cmnd->scsi_done. Minimal code disturbance was attempted with this change. Most drivers needed only two one-line modifications for their host lock push-down. Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Acked-by: James Bottomley <James.Bottomley@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-16 15:10:29 +08:00
static DEF_SCSI_QCMD(tw_scsi_queue)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/* This function is the interrupt service routine */
IRQ: Maintain regs pointer globally rather than passing to IRQ handlers Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-10-05 21:55:46 +08:00
static irqreturn_t tw_interrupt(int irq, void *dev_instance)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
int request_id;
u32 status_reg_value;
TW_Device_Extension *tw_dev = (TW_Device_Extension *)dev_instance;
TW_Response_Queue response_que;
int error = 0, retval = 0;
TW_Command *command_packet;
int handled = 0;
/* Get the host lock for io completions */
spin_lock(tw_dev->host->host_lock);
/* Read the registers */
status_reg_value = inl(TW_STATUS_REG_ADDR(tw_dev));
/* Check if this is our interrupt, otherwise bail */
if (!(status_reg_value & TW_STATUS_VALID_INTERRUPT))
goto tw_interrupt_bail;
handled = 1;
[SCSI] 3ware 8000 serialize reset code The attached patch updates the 3ware 8000 driver: - Free irq handler in __tw_shutdown(). - Turn on RCD bit for caching mode page. - Serialize reset code. Signed-off-by: Adam Radford <linuxraid@amcc.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-01-05 10:16:56 +08:00
/* If we are resetting, bail */
if (test_bit(TW_IN_RESET, &tw_dev->flags))
goto tw_interrupt_bail;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/* Check controller for errors */
if (tw_check_bits(status_reg_value)) {
dprintk(KERN_WARNING "3w-xxxx: tw_interrupt(): Unexpected bits.\n");
if (tw_decode_bits(tw_dev, status_reg_value, 1)) {
TW_CLEAR_ALL_INTERRUPTS(tw_dev);
goto tw_interrupt_bail;
}
}
/* Handle host interrupt */
if (status_reg_value & TW_STATUS_HOST_INTERRUPT) {
dprintk(KERN_NOTICE "3w-xxxx: tw_interrupt(): Received host interrupt.\n");
TW_CLEAR_HOST_INTERRUPT(tw_dev);
}
/* Handle attention interrupt */
if (status_reg_value & TW_STATUS_ATTENTION_INTERRUPT) {
dprintk(KERN_NOTICE "3w-xxxx: tw_interrupt(): Received attention interrupt.\n");
TW_CLEAR_ATTENTION_INTERRUPT(tw_dev);
tw_state_request_start(tw_dev, &request_id);
error = tw_aen_read_queue(tw_dev, request_id);
if (error) {
printk(KERN_WARNING "3w-xxxx: scsi%d: Error reading aen queue.\n", tw_dev->host->host_no);
tw_dev->state[request_id] = TW_S_COMPLETED;
tw_state_request_finish(tw_dev, request_id);
}
}
/* Handle command interrupt */
if (status_reg_value & TW_STATUS_COMMAND_INTERRUPT) {
/* Drain as many pending commands as we can */
while (tw_dev->pending_request_count > 0) {
request_id = tw_dev->pending_queue[tw_dev->pending_head];
if (tw_dev->state[request_id] != TW_S_PENDING) {
printk(KERN_WARNING "3w-xxxx: scsi%d: Found request id that wasn't pending.\n", tw_dev->host->host_no);
break;
}
if (tw_post_command_packet(tw_dev, request_id)==0) {
if (tw_dev->pending_head == TW_Q_LENGTH-1) {
tw_dev->pending_head = TW_Q_START;
} else {
tw_dev->pending_head = tw_dev->pending_head + 1;
}
tw_dev->pending_request_count--;
} else {
/* If we get here, we will continue re-posting on the next command interrupt */
break;
}
}
/* If there are no more pending requests, we mask command interrupt */
if (tw_dev->pending_request_count == 0)
TW_MASK_COMMAND_INTERRUPT(tw_dev);
}
/* Handle response interrupt */
if (status_reg_value & TW_STATUS_RESPONSE_INTERRUPT) {
/* Drain the response queue from the board */
while ((status_reg_value & TW_STATUS_RESPONSE_QUEUE_EMPTY) == 0) {
/* Read response queue register */
response_que.value = inl(TW_RESPONSE_QUEUE_REG_ADDR(tw_dev));
request_id = TW_RESID_OUT(response_que.response_id);
command_packet = (TW_Command *)tw_dev->command_packet_virtual_address[request_id];
error = 0;
/* Check for bad response */
if (command_packet->status != 0) {
/* If internal command, don't error, don't fill sense */
if (tw_dev->srb[request_id] == NULL) {
tw_decode_sense(tw_dev, request_id, 0);
} else {
error = tw_decode_sense(tw_dev, request_id, 1);
}
}
/* Check for correct state */
if (tw_dev->state[request_id] != TW_S_POSTED) {
if (tw_dev->srb[request_id] != NULL) {
printk(KERN_WARNING "3w-xxxx: scsi%d: Received a request id that wasn't posted.\n", tw_dev->host->host_no);
error = 1;
}
}
dprintk(KERN_NOTICE "3w-xxxx: tw_interrupt(): Response queue request id: %d.\n", request_id);
/* Check for internal command completion */
if (tw_dev->srb[request_id] == NULL) {
dprintk(KERN_WARNING "3w-xxxx: tw_interrupt(): Found internally posted command.\n");
/* Check for chrdev ioctl completion */
if (request_id != tw_dev->chrdev_request_id) {
retval = tw_aen_complete(tw_dev, request_id);
if (retval) {
printk(KERN_WARNING "3w-xxxx: scsi%d: Error completing aen.\n", tw_dev->host->host_no);
}
} else {
tw_dev->chrdev_request_id = TW_IOCTL_CHRDEV_FREE;
wake_up(&tw_dev->ioctl_wqueue);
}
} else {
switch (tw_dev->srb[request_id]->cmnd[0]) {
case READ_10:
case READ_6:
dprintk(KERN_NOTICE "3w-xxxx: tw_interrupt(): caught READ_10/READ_6\n");
break;
case WRITE_10:
case WRITE_6:
dprintk(KERN_NOTICE "3w-xxxx: tw_interrupt(): caught WRITE_10/WRITE_6\n");
break;
case TEST_UNIT_READY:
dprintk(KERN_NOTICE "3w-xxxx: tw_interrupt(): caught TEST_UNIT_READY\n");
error = tw_scsiop_test_unit_ready_complete(tw_dev, request_id);
break;
case INQUIRY:
dprintk(KERN_NOTICE "3w-xxxx: tw_interrupt(): caught INQUIRY\n");
error = tw_scsiop_inquiry_complete(tw_dev, request_id);
break;
case READ_CAPACITY:
dprintk(KERN_NOTICE "3w-xxxx: tw_interrupt(): caught READ_CAPACITY\n");
error = tw_scsiop_read_capacity_complete(tw_dev, request_id);
break;
case MODE_SENSE:
dprintk(KERN_NOTICE "3w-xxxx: tw_interrupt(): caught MODE_SENSE\n");
error = tw_scsiop_mode_sense_complete(tw_dev, request_id);
break;
case SYNCHRONIZE_CACHE:
dprintk(KERN_NOTICE "3w-xxxx: tw_interrupt(): caught SYNCHRONIZE_CACHE\n");
break;
default:
printk(KERN_WARNING "3w-xxxx: case slip in tw_interrupt()\n");
error = 1;
}
/* If no error command was a success */
if (error == 0) {
tw_dev->srb[request_id]->result = (DID_OK << 16);
}
/* If error, command failed */
if (error == 1) {
/* Ask for a host reset */
tw_dev->srb[request_id]->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
}
/* Now complete the io */
if ((error != TW_ISR_DONT_COMPLETE)) {
3w-xxxx: fix command completion race The 3w-xxxx driver needs to tear down the dma mappings before returning the command to the midlayer, as there is no guarantee the sglist and count are valid after that point. Also remove the dma mapping helpers which have another inherent race due to the request_id index. Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: stable@vger.kernel.org Acked-by: Adam Radford <aradford@gmail.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-04-23 15:48:50 +08:00
scsi_dma_unmap(tw_dev->srb[request_id]);
tw_dev->srb[request_id]->scsi_done(tw_dev->srb[request_id]);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
tw_dev->state[request_id] = TW_S_COMPLETED;
tw_state_request_finish(tw_dev, request_id);
tw_dev->posted_request_count--;
}
}
/* Check for valid status after each drain */
status_reg_value = inl(TW_STATUS_REG_ADDR(tw_dev));
if (tw_check_bits(status_reg_value)) {
dprintk(KERN_WARNING "3w-xxxx: tw_interrupt(): Unexpected bits.\n");
if (tw_decode_bits(tw_dev, status_reg_value, 1)) {
TW_CLEAR_ALL_INTERRUPTS(tw_dev);
goto tw_interrupt_bail;
}
}
}
}
tw_interrupt_bail:
spin_unlock(tw_dev->host->host_lock);
return IRQ_RETVAL(handled);
} /* End tw_interrupt() */
/* This function tells the controller to shut down */
static void __tw_shutdown(TW_Device_Extension *tw_dev)
{
/* Disable interrupts */
TW_DISABLE_INTERRUPTS(tw_dev);
[SCSI] 3ware 8000 serialize reset code The attached patch updates the 3ware 8000 driver: - Free irq handler in __tw_shutdown(). - Turn on RCD bit for caching mode page. - Serialize reset code. Signed-off-by: Adam Radford <linuxraid@amcc.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-01-05 10:16:56 +08:00
/* Free up the IRQ */
free_irq(tw_dev->tw_pci_dev->irq, tw_dev);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
printk(KERN_WARNING "3w-xxxx: Shutting down host %d.\n", tw_dev->host->host_no);
/* Tell the card we are shutting down */
if (tw_initconnection(tw_dev, 1)) {
printk(KERN_WARNING "3w-xxxx: Connection shutdown failed.\n");
} else {
printk(KERN_WARNING "3w-xxxx: Shutdown complete.\n");
}
/* Clear all interrupts just before exit */
TW_ENABLE_AND_CLEAR_INTERRUPTS(tw_dev);
} /* End __tw_shutdown() */
/* Wrapper for __tw_shutdown */
[PATCH] PCI: make drivers use the pci shutdown callback instead of the driver core callback. Now we can change the pci core to always set this pointer, as pci drivers should use it, not the driver core callback. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-06-24 08:35:56 +08:00
static void tw_shutdown(struct pci_dev *pdev)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
[PATCH] PCI: make drivers use the pci shutdown callback instead of the driver core callback. Now we can change the pci core to always set this pointer, as pci drivers should use it, not the driver core callback. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-06-24 08:35:56 +08:00
struct Scsi_Host *host = pci_get_drvdata(pdev);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
TW_Device_Extension *tw_dev = (TW_Device_Extension *)host->hostdata;
__tw_shutdown(tw_dev);
} /* End tw_shutdown() */
[SCSI] 3w-xxxx, 3w-9xxx: force 60 second timeout This small patch forces 60 second timeouts for the older 3w-xxxx & 3w-9xxx drivers for systems that don't contain the udev rule for setting scsi timeouts to 60 seconds. Signed-off-by: Adam Radford <aradford@gmail.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-03-09 04:37:46 +08:00
/* This function gets called when a disk is coming online */
static int tw_slave_configure(struct scsi_device *sdev)
{
/* Force 60 second timeout */
blk_queue_rq_timeout(sdev->request_queue, 60 * HZ);
return 0;
} /* End tw_slave_configure() */
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
static struct scsi_host_template driver_template = {
.module = THIS_MODULE,
.name = "3ware Storage Controller",
.queuecommand = tw_scsi_queue,
.eh_host_reset_handler = tw_scsi_eh_reset,
.bios_param = tw_scsi_biosparam,
scsi: drop reason argument from ->change_queue_depth Drop the now unused reason argument from the ->change_queue_depth method. Also add a return value to scsi_adjust_queue_depth, and rename it to scsi_change_queue_depth now that it can be used as the default ->change_queue_depth implementation. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Reviewed-by: Hannes Reinecke <hare@suse.de>
2014-11-13 22:08:42 +08:00
.change_queue_depth = scsi_change_queue_depth,
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
.can_queue = TW_Q_LENGTH-2,
[SCSI] 3w-xxxx, 3w-9xxx: force 60 second timeout This small patch forces 60 second timeouts for the older 3w-xxxx & 3w-9xxx drivers for systems that don't contain the udev rule for setting scsi timeouts to 60 seconds. Signed-off-by: Adam Radford <aradford@gmail.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-03-09 04:37:46 +08:00
.slave_configure = tw_slave_configure,
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
.this_id = -1,
.sg_tablesize = TW_MAX_SGL_LENGTH,
.max_sectors = TW_MAX_SECTORS,
.cmd_per_lun = TW_MAX_CMDS_PER_LUN,
.shost_attrs = tw_host_attrs,
[SCSI] Disable WRITE SAME for RAID and virtual host adapter drivers Some host adapters do not pass commands through to the target disk directly. Instead they provide an emulated target which may or may not accurately report its capabilities. In some cases the physical device characteristics are reported even when the host adapter is processing commands on the device's behalf. This can lead to adapter firmware hangs or excessive I/O errors. This patch disables WRITE SAME for devices connected to host adapters that provide an emulated target. Driver writers can disable WRITE SAME by setting the no_write_same flag in the host adapter template. [jejb: fix up rejections due to eh_deadline patch] Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Cc: stable@kernel.org Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-10-23 18:25:40 +08:00
.emulated = 1,
.no_write_same = 1,
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
};
/* This function will probe and initialize a card */
Drivers: scsi: remove __dev* attributes. CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: Adam Radford <linuxraid@lsi.com> Cc: "James E.J. Bottomley" <JBottomley@parallels.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-12-22 05:08:55 +08:00
static int tw_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
struct Scsi_Host *host = NULL;
TW_Device_Extension *tw_dev;
int retval = -ENODEV;
retval = pci_enable_device(pdev);
if (retval) {
printk(KERN_WARNING "3w-xxxx: Failed to enable pci device.");
goto out_disable_device;
}
pci_set_master(pdev);
scsi: 3w-xxx: fully convert to the generic DMA API The driver is currently using an odd mix of legacy PCI DMA API and generic DMA API calls, switch it over to the generic API entirely. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Adam Radford <aradford@gmail.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-10 23:58:50 +08:00
retval = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (retval) {
printk(KERN_WARNING "3w-xxxx: Failed to set dma mask.");
goto out_disable_device;
}
host = scsi_host_alloc(&driver_template, sizeof(TW_Device_Extension));
if (!host) {
printk(KERN_WARNING "3w-xxxx: Failed to allocate memory for device extension.");
retval = -ENOMEM;
goto out_disable_device;
}
tw_dev = (TW_Device_Extension *)host->hostdata;
/* Save values to device extension */
tw_dev->host = host;
tw_dev->tw_pci_dev = pdev;
if (tw_initialize_device_extension(tw_dev)) {
printk(KERN_WARNING "3w-xxxx: Failed to initialize device extension.");
scsi: 3ware: fix return 0 on the error path of probe tw_probe() returns 0 in case of fail of tw_initialize_device_extension(), pci_resource_start() or tw_reset_sequence() and releases resources. twl_probe() returns 0 in case of fail of twl_initialize_device_extension(), pci_iomap() and twl_reset_sequence(). twa_probe() returns 0 in case of fail of tw_initialize_device_extension(), ioremap() and twa_reset_sequence(). The patch adds retval initialization for these cases. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Anton Vasilyev <vasilyev@ispras.ru> Acked-by: Adam Radford <aradford@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-07-27 21:51:57 +08:00
retval = -ENOMEM;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
goto out_free_device_extension;
}
/* Request IO regions */
retval = pci_request_regions(pdev, "3w-xxxx");
if (retval) {
printk(KERN_WARNING "3w-xxxx: Failed to get mem region.");
goto out_free_device_extension;
}
/* Save base address */
tw_dev->base_addr = pci_resource_start(pdev, 0);
if (!tw_dev->base_addr) {
printk(KERN_WARNING "3w-xxxx: Failed to get io address.");
scsi: 3ware: fix return 0 on the error path of probe tw_probe() returns 0 in case of fail of tw_initialize_device_extension(), pci_resource_start() or tw_reset_sequence() and releases resources. twl_probe() returns 0 in case of fail of twl_initialize_device_extension(), pci_iomap() and twl_reset_sequence(). twa_probe() returns 0 in case of fail of tw_initialize_device_extension(), ioremap() and twa_reset_sequence(). The patch adds retval initialization for these cases. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Anton Vasilyev <vasilyev@ispras.ru> Acked-by: Adam Radford <aradford@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-07-27 21:51:57 +08:00
retval = -ENOMEM;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
goto out_release_mem_region;
}
/* Disable interrupts on the card */
TW_DISABLE_INTERRUPTS(tw_dev);
/* Initialize the card */
if (tw_reset_sequence(tw_dev))
goto out_release_mem_region;
/* Set host specific parameters */
host->max_id = TW_MAX_UNITS;
host->max_cmd_len = TW_MAX_CDB_LEN;
/* Luns and channels aren't supported by adapter */
host->max_lun = 0;
host->max_channel = 0;
/* Register the card with the kernel SCSI layer */
retval = scsi_add_host(host, &pdev->dev);
if (retval) {
printk(KERN_WARNING "3w-xxxx: scsi add host failed");
goto out_release_mem_region;
}
pci_set_drvdata(pdev, host);
printk(KERN_WARNING "3w-xxxx: scsi%d: Found a 3ware Storage Controller at 0x%x, IRQ: %d.\n", host->host_no, tw_dev->base_addr, pdev->irq);
/* Now setup the interrupt handler */
[PATCH] irq-flags: scsi: Use the new IRQF_ constants Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: "David S. Miller" <davem@davemloft.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: James Bottomley <James.Bottomley@steeleye.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-02 10:29:42 +08:00
retval = request_irq(pdev->irq, tw_interrupt, IRQF_SHARED, "3w-xxxx", tw_dev);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (retval) {
printk(KERN_WARNING "3w-xxxx: Error requesting IRQ.");
goto out_remove_host;
}
tw_device_extension_list[tw_device_extension_count] = tw_dev;
tw_device_extension_count++;
/* Re-enable interrupts on the card */
TW_ENABLE_AND_CLEAR_INTERRUPTS(tw_dev);
/* Finally, scan the host */
scsi_scan_host(host);
if (twe_major == -1) {
if ((twe_major = register_chrdev (0, "twe", &tw_fops)) < 0)
printk(KERN_WARNING "3w-xxxx: Failed to register character device.");
}
return 0;
out_remove_host:
scsi_remove_host(host);
out_release_mem_region:
pci_release_regions(pdev);
out_free_device_extension:
tw_free_device_extension(tw_dev);
scsi_host_put(host);
out_disable_device:
pci_disable_device(pdev);
return retval;
} /* End tw_probe() */
/* This function is called to remove a device */
static void tw_remove(struct pci_dev *pdev)
{
struct Scsi_Host *host = pci_get_drvdata(pdev);
TW_Device_Extension *tw_dev = (TW_Device_Extension *)host->hostdata;
scsi_remove_host(tw_dev->host);
/* Unregister character device */
if (twe_major >= 0) {
unregister_chrdev(twe_major, "twe");
twe_major = -1;
}
/* Shutdown the card */
__tw_shutdown(tw_dev);
/* Free up the mem region */
pci_release_regions(pdev);
/* Free up device extension resources */
tw_free_device_extension(tw_dev);
scsi_host_put(tw_dev->host);
pci_disable_device(pdev);
tw_device_extension_count--;
} /* End tw_remove() */
/* PCI Devices supported by this driver */
Drivers: scsi: remove __dev* attributes. CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: Adam Radford <linuxraid@lsi.com> Cc: "James E.J. Bottomley" <JBottomley@parallels.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-12-22 05:08:55 +08:00
static struct pci_device_id tw_pci_tbl[] = {
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{ PCI_VENDOR_ID_3WARE, PCI_DEVICE_ID_3WARE_1000,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{ PCI_VENDOR_ID_3WARE, PCI_DEVICE_ID_3WARE_7000,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{ }
};
MODULE_DEVICE_TABLE(pci, tw_pci_tbl);
/* pci_driver initializer */
static struct pci_driver tw_driver = {
.name = "3w-xxxx",
.id_table = tw_pci_tbl,
.probe = tw_probe,
.remove = tw_remove,
[PATCH] PCI: make drivers use the pci shutdown callback instead of the driver core callback. Now we can change the pci core to always set this pointer, as pci drivers should use it, not the driver core callback. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-06-24 08:35:56 +08:00
.shutdown = tw_shutdown,
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
};
/* This function is called on driver initialization */
static int __init tw_init(void)
{
printk(KERN_WARNING "3ware Storage Controller device driver for Linux v%s.\n", TW_DRIVER_VERSION);
[SCSI] pci_module_init conversion in scsi subsystem Converts pci_module_init() to pci_register_driver() in the scsi subsys on 23 drivers which only return the value of pci_module_init(). Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-09-26 07:58:58 +08:00
return pci_register_driver(&tw_driver);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
} /* End tw_init() */
/* This function is called on driver exit */
static void __exit tw_exit(void)
{
pci_unregister_driver(&tw_driver);
} /* End tw_exit() */
module_init(tw_init);
module_exit(tw_exit);