- 01 Dec, 2012 2 commits
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Sreekanth Reddy authored
[jejb: split this core change into a separate patch] Signed-off-by:
Sreekanth Reddy <Sreekanth.Reddy@lsi.com> Reviewed-by:
Nagalakshmi Nandigama <Nagalakshmi.Nandigama@lsi.com> Signed-off-by:
James Bottomley <JBottomley@Parallels.com>
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Sreekanth Reddy authored
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- 30 Nov, 2012 33 commits
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Dan Carpenter authored
No need to memset() this when we just copy over it on the next line. Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Acked-by:
Naresh Kumar Inna <naresh@chelsio.com> Signed-off-by:
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Naresh Kumar Inna authored
This patch fixes sparse warnings related to endian-ness, which were reported by the 0-day kernel build and testing tool. Reported-by:
Fengguang Wu <fengguang.wu@intel.com> Signed-off-by:
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Saurav Kashyap authored
Signed-off-by:
Giridhar Malavali <giridhar.malavali@qlogic.com> Signed-off-by:
Saurav Kashyap <saurav.kashyap@qlogic.com> Signed-off-by:
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Saurav Kashyap authored
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Masanari Iida authored
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Masanari Iida <standby24x7@gmail.com> Signed-off-by:
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Chad Dupuis authored
Update the parameter description for the ql2xextended_error_logging parameter with the following new option: 0x00008000 - Verbose output 0x00004000 - Target mode 0x00002000 - Target mode management 0x00001000 - Target mode task management Signed-off-by:
Chad Dupuis <chad.dupuis@qlogic.com> Signed-off-by:
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Joe Carnuccio authored
Parameterize qla2x00_get_link_speed_str() to be generic on link speed. Signed-off-by:
Joe Carnuccio <joe.carnuccio@qlogic.com> Signed-off-by:
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Joe Carnuccio authored
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Joe Carnuccio authored
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Joe Carnuccio authored
Try to acquire the semaphore; if semaphore is hung then acquire it by force. The ISP reset clears the semaphore, thereby implicitly releasing it. Signed-off-by:
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Saurav Kashyap authored
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Saurav Kashyap authored
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Saurav Kashyap authored
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Andrew Vasquez authored
Original code was not corrected for ISP83xx support. Instead code should used the cached reference from the req_que structure, rather than the legacy 'if (ISP-TYPE(X))... else if (ISP-TYPE(Y))...' codes. Signed-off-by:
Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by:
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Chad Dupuis authored
This message can fill up the system logs and is not a common occurrence so move it to the verbose logging level. Signed-off-by:
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Saurav Kashyap authored
Reported-by:
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Armen Baloyan authored
Signed-off-by:
Armen Baloyan <armen.baloyan@qlogic.com> Signed-off-by:
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Saurav Kashyap authored
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Saurav Kashyap authored
The value of 2 is informational message and it means that port id has changed. The driver should honor the value and continue its normal course. Signed-off-by:
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Chad Dupuis authored
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Andrew Vasquez authored
Rather than returning stale mailbox values. Signed-off-by:
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Saurav Kashyap authored
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Steve Hodgson authored
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Steve Hodgson <steve@purestorage.com> Signed-off-by:
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Giridhar Malavali authored
[SCSI] qla2xxx: Change in setting UNLOADING flag and FC vports logout sequence while unloading qla2xxx driver. Signed-off-by:
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David Jeffery authored
When the qla2xxx driver loses access to multiple, remote ports, there is a race condition which can occur which will keep the request stuck on a scsi request queue indefinitely. This bad state occurred do to a race condition with how the FCPORT_UPDATE_NEEDED bit is set in qla2x00_schedule_rport_del(), and how it is cleared in qla2x00_do_dpc(). The problem port has its drport pointer set, but it has never been processed by the driver to inform the fc transport that the port has been lost. qla2x00_schedule_rport_del() sets drport, and then sets the FCPORT_UPDATE_NEEDED bit. In qla2x00_do_dpc(), the port lists are walked and any drport pointer is handled and the fc transport informed of the port loss, then the FCPORT_UPDATE_NEEDED bit is cleared. This leaves a race where the dpc thread is processing one port removal, another port removal is marked with a call to qla2x00_schedule_rport_del(), and the dpc thread clears the bit for both removals, even though only the first removal was actually handled. Until another event occurs to set FCPORT_UPDATE_NEEDED, the later port removal is never finished and qla2xxx stays in a bad state which causes requests to become stuck on request queues. This patch updates the driver to test and clear FCPORT_UPDATE_NEEDED atomically. This ensures the port state changes are processed and not lost. Signed-off-by:
David Jeffery <djeffery@redhat.com> Signed-off-by:
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Armen Baloyan authored
FC transport on receiving bsg_job submission failure, calls bsg_job->job_done() and sets the bsg_job->reply->result the returned value. In contrast, when the success code (0) is returned fc transport doesn't call bsg_job->job_done() and doesn't populate bsg_job->reply->result. Signed-off-by:
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Aaron Lu authored
Update sd driver to use the callbacks defined in dev_pm_ops. sd_freeze is NULL, the bus level callback has taken care of quiescing the device so there should be nothing needs to be done here. Consequently, sd_thaw is not needed here either. suspend, poweroff and runtime suspend share the same routine sd_suspend, which will sync flush and then stop the drive, this is the same as before. resume, restore and runtime resume share the same routine sd_resume, which will start the drive by putting it into active power state, this is also the same as before. Signed-off-by:
Aaron Lu <aaron.lu@intel.com> Acked-by:
Alan Stern <stern@rowland.harvard.edu> Acked-by:
Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by:
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Aaron Lu authored
Use of pm_message_t is deprecated and device driver is not supposed to use that. This patch migrates the SCSI bus level pm callbacks to call device's pm callbacks defined in its driver's dev_pm_ops. This is achieved by finding out which device pm callback should be used in bus callback function, and then pass that callback function pointer as a param to the scsi_bus_{suspend,resume}_common routine, which will further pass that callback to scsi_dev_type_{suspend,resume} after proper handling. The special case for freeze in scsi_bus_suspend_common is not necessary since there is no high level SCSI driver has implemented freeze, so no need to runtime resume the device if it is in runtime suspended state for system freeze, just return like the system suspend/hibernate case. Since only sd has implemented drv->suspend/drv->resume, and I'll update sd driver to use the new callbacks in the following patch, there is no need to fallback to call drv->suspend/drv->resume if dev_pm_ops is NULL. Signed-off-by: -
Aaron Lu authored
This reverts commit 28fd00d4. With commit 88d26136 (PM: Prevent runtime suspend during system resume), this patch is no longer needed. Signed-off-by:
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Aaron Lu authored
This reverts commit 33a2285d. With commit 88d26136 (PM: Prevent runtime suspend during system resume), this patch is no longer needed. Signed-off-by:
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Aaron Lu authored
When device is runtime suspended, put it to stopped power state to save some power. This will also make the behaviour consistent with what the scsi_pm.c thinks about sd as the comment says: sd treats runtime suspend, system suspend and system hibernate identical. With this patch, it is now identical. And sd_shutdown will also do nothing when it finds the device has been runtime suspended, if we do not spin down the disk in runtime suspend by putting it into stopped power state, the disk will be shut down incorrectly. And the the same problem can be solved for runtime power off after runtime suspended case by this change. With the current runtime scheme for disk, it will only be runtime suspended when no process opens the disk, so this shouldn't happen a lot, which makes it acceptable to spin down the disk when runtime suspended. If some day a more aggressive runtime scheme is used, like the 'request based runtime pm for disk' that Alan Stern and Lin Ming has been working, we can introduce some policy to control this. But for now, make it simple and correct by spinning down the disk. Signed-off-by:
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Xi Wang authored
The macro bit(n) is defined as ((u32)1 << n), and thus it doesn't work with n >= 32, such as in mvs_94xx_assign_reg_set(): if (i >= 32) { mvi->sata_reg_set |= bit(i); ... } The shift ((u32)1 << n) with n >= 32 also leads to undefined behavior. The result varies depending on the architecture. This patch changes bit(n) to do a 64-bit shift. It also simplifies mv_ffc64() using __ffs64(), since invoking ffz() with ~0 is undefined. Signed-off-by:Xi Wang <xi.wang@gmail.com> Acked-by:
Xiangliang Yu <yuxiangl@marvell.com> Cc: stable@vger.kernel.org Signed-off-by:
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Sasha Levin authored
store_host_reset() has tried to re-invent the wheel to compare sysfs strings. Unfortunately it did so poorly and never bothered to check the input from userspace before overwriting stack with it, so something simple as: echo "WoopsieWoopsie" > /sys/devices/pseudo_0/adapter0/host0/scsi_host/host0/host_reset would result in: [ 316.310101] Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: ffffffff81f5bac7 [ 316.310101] [ 316.320051] Pid: 6655, comm: sh Tainted: G W 3.7.0-rc5-next-20121114-sasha-00016-g5c9d68d-dirty #129 [ 316.320051] Call Trace: [ 316.340058] pps pps0: PPS event at 1352918752.620355751 [ 316.340062] pps pps0: capture assert seq #303 [ 316.320051] [<ffffffff83b3856b>] panic+0xcd/0x1f4 [ 316.320051] [<ffffffff81f5bac7>] ? store_host_reset+0xd7/0x100 [ 316.320051] [<ffffffff8110b996>] __stack_chk_fail+0x16/0x20 [ 316.320051] [<ffffffff81f5bac7>] store_host_reset+0xd7/0x100 [ 316.320051] [<ffffffff81e55bb3>] dev_attr_store+0x13/0x30 [ 316.320051] [<ffffffff812f7db1>] sysfs_write_file+0x101/0x170 [ 316.320051] [<ffffffff8127acc8>] vfs_write+0xb8/0x180 [ 316.320051] [<ffffffff8127ae80>] sys_write+0x50/0xa0 [ 316.320051] [<ffffffff83c03418>] tracesys+0xe1/0xe6 Fix this by uninventing whatever was going on there and just use sysfs_streq. Bug introduced by 29443691 ("[SCSI] scsi: Added support for adapter and firmware reset"). [jejb: added necessary const to prevent compile warnings] Signed-off-by:
Sasha Levin <sasha.levin@oracle.com> Cc: <stable@vger.kernel.org> #3.2+ Signed-off-by:
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- 27 Nov, 2012 5 commits
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Naresh Kumar Inna authored
Signed-off-by:
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Naresh Kumar Inna authored
This patch contains updates to firmware/hardware header files shared between csiostor and cxgb4/cxgb4vf, and the resulting changes to the cxgb4/cxgb4vf source files. Signed-off-by:
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Jason J. Herne authored
Force large capacity (> 0xFFFFFFFF blocks) drives to use READ/WRITE(16) instead of READ/WRITE(10). Some(most/all?) USB enclosures do not like READ(10) commands when a large capacity drive is installed. This issue was reported and discussed here: http://marc.info/?l=linux-usb&m=135247705222324Signed-off-by:
Jason J. Herne <hernejj@gmail.com> Signed-off-by:
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Mahesh Rajashekhara authored
This patch handles SCSI dma mapping failure case. Reporting error code to the upper layer instead of BUG_ON(). Signed-off-by:
Mahesh Rajashekhara <Mahesh_Rajashekhara@pmc-sierra.com> Reviewed-by:
Tomas Henzl <thenzl@redhat.com> Signed-off-by:
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Eric Northup authored
virtscsi_queuecommand was leaking memory when the virtio queue was full. Tested: Guest operates correctly even with very small queue sizes, validated we're not leaking kmalloc-192 sized allocations anymore. Signed-off-by:
Eric Northup <digitaleric@google.com> Acked-by:
Paolo Bonzini <pbonzini@redhat.com> Signed-off-by:
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