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path: root/drivers/scsi/lpfc/lpfc_scsi.c
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2016-07-27lpfc: fix oops in lpfc_sli4_scmd_to_wqidx_distr() from lpfc_send_taskmgmt()Mauricio Faria de Oliveira1-1/+1
The lpfc_sli4_scmd_to_wqidx_distr() function expects the scsi_cmnd 'lpfc_cmd->pCmd' not to be null, and point to the midlayer command. That's not true in the .eh_(device|target|bus)_reset_handler path, because lpfc_send_taskmgmt() sends commands not from the midlayer, so does not set 'lpfc_cmd->pCmd'. That is true in the .queuecommand path because lpfc_queuecommand() stores the scsi_cmnd from midlayer in lpfc_cmd->pCmd; and lpfc_cmd is stored by lpfc_scsi_prep_cmnd() in piocbq->context1 -- which is passed to lpfc_sli4_scmd_to_wqidx_distr() as lpfc_cmd parameter. This problem can be hit on SCSI EH, and immediately with sg_reset. These 2 test-cases demonstrate the problem/fix with next-20160601. Test-case 1) sg_reset # strace sg_reset --device /dev/sdm <...> open("/dev/sdm", O_RDWR|O_NONBLOCK) = 3 ioctl(3, SG_SCSI_RESET, 0x3fffde6d0994 <unfinished ...> +++ killed by SIGSEGV +++ Segmentation fault # dmesg Unable to handle kernel paging request for data at address 0x00000000 Faulting instruction address: 0xd00000001c88442c Oops: Kernel access of bad area, sig: 11 [#1] <...> CPU: 104 PID: 16333 Comm: sg_reset Tainted: G W 4.7.0-rc1-next-20160601-00004-g95b89dc #6 <...> NIP [d00000001c88442c] lpfc_sli4_scmd_to_wqidx_distr+0xc/0xd0 [lpfc] LR [d00000001c826fe8] lpfc_sli_calc_ring.part.27+0x98/0xd0 [lpfc] Call Trace: [c000003c9ec876f0] [c000003c9ec87770] 0xc000003c9ec87770 (unreliable) [c000003c9ec87720] [d00000001c82e004] lpfc_sli_issue_iocb+0xd4/0x260 [lpfc] [c000003c9ec87780] [d00000001c831a3c] lpfc_sli_issue_iocb_wait+0x15c/0x5b0 [lpfc] [c000003c9ec87880] [d00000001c87f27c] lpfc_send_taskmgmt+0x24c/0x650 [lpfc] [c000003c9ec87950] [d00000001c87fd7c] lpfc_device_reset_handler+0x10c/0x200 [lpfc] [c000003c9ec87a10] [c000000000610694] scsi_try_bus_device_reset+0x44/0xc0 [c000003c9ec87a40] [c0000000006113e8] scsi_ioctl_reset+0x198/0x2c0 [c000003c9ec87bf0] [c00000000060fe5c] scsi_ioctl+0x13c/0x4b0 [c000003c9ec87c80] [c0000000006629b0] sd_ioctl+0xf0/0x120 [c000003c9ec87cd0] [c00000000046e4f8] blkdev_ioctl+0x248/0xb70 [c000003c9ec87d30] [c0000000002a1f60] block_ioctl+0x70/0x90 [c000003c9ec87d50] [c00000000026d334] do_vfs_ioctl+0xc4/0x890 [c000003c9ec87de0] [c00000000026db60] SyS_ioctl+0x60/0xc0 [c000003c9ec87e30] [c000000000009120] system_call+0x38/0x108 Instruction dump: <...> With fix: # strace sg_reset --device /dev/sdm <...> open("/dev/sdm", O_RDWR|O_NONBLOCK) = 3 ioctl(3, SG_SCSI_RESET, 0x3fffe103c554) = 0 close(3) = 0 exit_group(0) = ? +++ exited with 0 +++ # dmesg [ 424.658649] lpfc 0006:01:00.4: 4:(0):0713 SCSI layer issued Device Reset (1, 0) return x2002 Test-case 2) SCSI EH Using this debug patch to wire an SCSI EH trigger, for lpfc_scsi_cmd_iocb_cmpl(): - cmd->scsi_done(cmd); + if ((phba->pport ? phba->pport->cfg_log_verbose : phba->cfg_log_verbose) == 0x32100000) + printk(KERN_ALERT "lpfc: skip scsi_done()\n"); + else + cmd->scsi_done(cmd); # echo 0x32100000 > /sys/class/scsi_host/host11/lpfc_log_verbose # dd if=/dev/sdm of=/dev/null iflag=direct & <...> After a while: # dmesg lpfc 0006:01:00.4: 4:(0):3053 lpfc_log_verbose changed from 0 (x0) to 839909376 (x32100000) lpfc: skip scsi_done() <...> Unable to handle kernel paging request for data at address 0x00000000 Faulting instruction address: 0xd0000000199e448c Oops: Kernel access of bad area, sig: 11 [#1] <...> CPU: 96 PID: 28556 Comm: scsi_eh_11 Tainted: G W 4.7.0-rc1-next-20160601-00004-g95b89dc #6 <...> NIP [d0000000199e448c] lpfc_sli4_scmd_to_wqidx_distr+0xc/0xd0 [lpfc] LR [d000000019986fe8] lpfc_sli_calc_ring.part.27+0x98/0xd0 [lpfc] Call Trace: [c000000ff0d0b890] [c000000ff0d0b900] 0xc000000ff0d0b900 (unreliable) [c000000ff0d0b8c0] [d00000001998e004] lpfc_sli_issue_iocb+0xd4/0x260 [lpfc] [c000000ff0d0b920] [d000000019991a3c] lpfc_sli_issue_iocb_wait+0x15c/0x5b0 [lpfc] [c000000ff0d0ba20] [d0000000199df27c] lpfc_send_taskmgmt+0x24c/0x650 [lpfc] [c000000ff0d0baf0] [d0000000199dfd7c] lpfc_device_reset_handler+0x10c/0x200 [lpfc] [c000000ff0d0bbb0] [c000000000610694] scsi_try_bus_device_reset+0x44/0xc0 [c000000ff0d0bbe0] [c0000000006126cc] scsi_eh_ready_devs+0x49c/0x9c0 [c000000ff0d0bcb0] [c000000000614160] scsi_error_handler+0x580/0x680 [c000000ff0d0bd80] [c0000000000ae848] kthread+0x108/0x130 [c000000ff0d0be30] [c0000000000094a8] ret_from_kernel_thread+0x5c/0xb4 Instruction dump: <...> With fix: # dmesg lpfc 0006:01:00.4: 4:(0):3053 lpfc_log_verbose changed from 0 (x0) to 839909376 (x32100000) lpfc: skip scsi_done() <...> lpfc 0006:01:00.4: 4:(0):0713 SCSI layer issued Device Reset (0, 0) return x2002 <...> lpfc 0006:01:00.4: 4:(0):0723 SCSI layer issued Target Reset (1, 0) return x2002 <...> lpfc 0006:01:00.4: 4:(0):0714 SCSI layer issued Bus Reset Data: x2002 <...> lpfc 0006:01:00.4: 4:(0):3172 SCSI layer issued Host Reset Data: <...> Fixes: 8b0dff14164d ("lpfc: Add support for using block multi-queue") Cc: <stable@vger.kernel.org> # v4.2+ Signed-off-by: Mauricio Faria de Oliveira <mauricfo@linux.vnet.ibm.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Acked-by: James Smart <james.smart@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-07-15lpfc: Copyright updatesJames Smart1-1/+1
Copyright updates Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-07-15lpfc: Add support for XLane LUN priorityJames Smart1-2/+7
Add support for XLane LUN priority Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-07-15lpfc: Add sysfs proc_name supportJames Smart1-0/+3
Add sysfs proc_name support Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-02-24lpfc: Remove redundant code block in lpfc_scsi_cmd_iocb_cmplJohannes Thumshirn1-17/+0
This removes a redundant code block that will either be executed if the ENABLE_FCP_RING_POLLING flag is set in phba->cfg_poll or not. The code is just duplicated in both cases, hence we unify it again. This probably is a left over from some sort of refactoring. Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Sebastian Herbszt <herbszt@gmx.de> Acked-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-12-22lpfc: Use new FDMI speed definitions for 10G, 25G and 40G FCoE.James Smart1-9/+1
Use new FDMI speed definitions for 10G, 25G and 40G FCoE. Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinicke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-12-22lpfc: Make write check error processing more resilientJames Smart1-6/+21
Make write check error processing more resilient. Checks to catch writes that fw reports weren't fully complete yet SCSI status indicated fine needed correction. Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinicke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-12-22lpfc: Fix crash in fcp command completion path.James Smart1-2/+2
Fix crash in fcp command completion path. Missed null check. Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinicke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-11-10scsi: use host wide tags by defaultChristoph Hellwig1-3/+0
This patch changes the !blk-mq path to the same defaults as the blk-mq I/O path by always enabling block tagging, and always using host wide tags. We've had blk-mq available for a few releases so bugs with this mode should have been ironed out, and this ensures we get better coverage of over tagging setup over different configs. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Jens Axboe <axboe@kernel.dk> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-10-27lpfc: remove set but not used variablesSebastian Herbszt1-13/+1
Remove set but not used variables. Signed-off-by: Sebastian Herbszt <herbszt@gmx.de> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-06-13lpfc: Fix scsi task management error message.James Smart1-8/+10
TMF's were getting error messages on FCP_RSP errors (underrun). Underruns aren't meaningful in the scenario. Change the error message to filter out these response check errors, and don't unconditionally mark the cmd as in error. Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-06-13lpfc: Fix scsi prep dma buf error.James Smart1-1/+1
Didn't check for less-than-or-equal zero. Means we may later call scsi_dma_unmap() even though we don't have valid mappings. Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-06-13lpfc: Add support for using block multi-queueJames Smart1-0/+43
With blk-mq support in the mid-layer, lpfc can do IO steering based on the information in the request tag. This patch allows lpfc to use blk-mq if enabled. If not enabled, we fall back into the emulex-internal affinity mappings. This feature can be turned on via CONFIG_SCSI_MQ_DEFAULT or passing scsi_mod.use_blk_mq=Y as a parameter to the kernel. Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-06-06lpfc: Change buffer pool empty message to miscellaneous categoryJames Smart1-1/+1
Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-05-11lpfc: Fix breakage on big endian kernelsAlexey Kardashevskiy1-20/+21
This reverts 4fbdf9cb it breaks LPFC on POWER7 machine, big endian kernel. Without this, the kernel enters an infinite oops loop. This is the hardware used for verification: 0005:01:00.0 Fibre Channel [0c04]: Emulex Corporation Saturn-X: LightPulse Fibre Channel Host Adapter [10df:f100] (rev 03) 0005:01:00.1 Fibre Channel [0c04]: Emulex Corporation Saturn-X: LightPulse Fibre Channel Host Adapter [10df:f100] (rev 03) Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Reviewed-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-04-10lpfc: Update copyright to 2015James Smart1-1/+1
Update copyright to 2015 Signed-off-by: Dick Kennedy <dick.kennedy@emulex.com> Signed-off-by: James Smart <james.smart@emulex.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-04-10lpfc: Fix for lun discovery issue with saturn adapter.James Smart1-21/+20
FCP_CMD payload was not always properly initialized on SLI-3 devices. Signed-off-by: Dick Kennedy <dick.kennedy@emulex.com> Signed-off-by: James Smart <james.smart@emulex.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-04-10lpfc: Fix crash in device reset handler.James Smart1-2/+3
Signed-off-by: Dick Kennedy <dick.kennedy@emulex.com> Signed-off-by: James Smart <james.smart@emulex.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-04-10lpfc: Fix null ndlp dereference in target_reset_handlerJames Smart1-4/+6
Signed-off-by: Dick Kennedy <dick.kennedy@emulex.com> Signed-off-by: James Smart <james.smart@emulex.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-04-10lpfc: Fix host reset escalation killing all IOs.James Smart1-0/+25
Fix host reset escalation killing all IOs. SLI-3 adapters will use a new host template. The template differs from SLI-4 adapters in that it does not have an eh_host_reset_handler. Lpfc has traditionally never had a host_reset. The host reset handler was added when we ran into a stuck hardware condition on a SLI-4 adapter. The host_reset will reset and reinit the pci function, clearing the hardware condition. Unfortunately, the host reset handler uses attach/detach code paths, which makes scsi_add_host() and scsi_remove_host() calls. Meaning, a host_reset will completely remove the scsi_host from the system. As a new call to scsi_add_host() is made, the shost# changes, which results in completely new scsi_devices and device names. All the older scsi devices on the old shost# are now orphaned and unrecoverable. We realize we need to re-implement the host_reset_handler so the scsi_host stays registered across the host_reset, but that will be a rather lengthy effort. In the short term, we had an immediate need to restore the SLI-3 devices to their working behavior, with the easiest path being to remove their host_reset handler. Signed-off-by: Dick Kennedy <dick.kennedy@emulex.com> Signed-off-by: James Smart <james.smart@emulex.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2014-12-04scsi: remove ->change_queue_type methodChristoph Hellwig1-2/+0
Since we got rid of ordered tag support in 2010 the prime use case of switching on and off ordered tags has been obsolete. The other function of enabling/disabling tagging entirely has only been correctly implemented by the 53c700 driver and isn't generally useful. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com Reviewed-by: Hannes Reinecke <hare@suse.de>
2014-11-24scsi: drop reason argument from ->change_queue_depthChristoph Hellwig1-22/+4
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>
2014-11-24scsi: avoid ->change_queue_depth indirection for queue full trackingChristoph Hellwig1-20/+3
All drivers use the implementation for ramping the queue up and down, so instead of overloading the change_queue_depth method call the implementation diretly if the driver opts into it by setting the track_queue_depth flag in the host template. Note that a few drivers validated the new queue depth in their change_queue_depth method, but as we never go over the queue depth set during slave_configure or the sysfs file this isn't nessecary and can safely be removed. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Venkatesh Srinivas <venkateshs@google.com>
2014-11-24lpfc: remove queue_depth eventsChristoph Hellwig1-66/+0
James Smart said the userspace to consume these events never emerged. Given that these get in the way of the following patches remove support for them. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Reviewed-by: Hannes Reinecke <hare@suse.de> Acked-by: James Smart <james.smart@emulex.com>
2014-11-12scsi: don't set tagging state from scsi_adjust_queue_depthChristoph Hellwig1-2/+2
Remove the tagged argument from scsi_adjust_queue_depth, and just let it handle the queue depth. For most drivers those two are fairly separate, given that most modern drivers don't care about the SCSI "tagged" status of a command at all, and many old drivers allow queuing of multiple untagged commands in the driver. Instead we start out with the ->simple_tags flag set before calling ->slave_configure, which is how all drivers actually looking at ->simple_tags except for one worke anyway. The one other case looks broken, but I've kept the behavior as-is for now. Except for that we only change ->simple_tags from the ->change_queue_type, and when rejecting a tag message in a single driver, so keeping this churn out of scsi_adjust_queue_depth is a clear win. Now that the usage of scsi_adjust_queue_depth is more obvious we can also remove all the trivial instances in ->slave_alloc or ->slave_configure that just set it to the cmd_per_lun default. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
2014-11-12scsi: always assign block layer tags if enabledChristoph Hellwig1-4/+3
Allow a driver to ask for block layer tags by setting .use_blk_tags in the host template, in which case it will always see a valid value in request->tag, similar to the behavior when using blk-mq. This means even SCSI "untagged" commands will now have a tag, which is especially useful when using a host-wide tag map. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Hannes Reinecke <hare@suse.de>
2014-11-12scsi: remove abuses of scsi_populate_tagChristoph Hellwig1-15/+1
Unless we want to build a SPI tag message we should just check SCMD_TAGGED instead of reverse engineering a tag type through the use of scsi_populate_tag_msg. Also rename the function to spi_populate_tag_msg, make it behave like the other spi message helpers, and move it to the spi transport class. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Reviewed-by: Hannes Reinecke <hare@suse.de>
2014-11-12scsi: provide a generic change_queue_type methodChristoph Hellwig1-22/+2
Most drivers use exactly the same implementation, so provide it as a library function. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Hannes Reinecke <hare@suse.de>
2014-09-16lpfc: fix for handling unmapped ndlp in target reset handlerJames Smart1-1/+7
Fix for handling unmapped ndlp in target reset handler Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: Dick Kennedy <dick.kennedy@emulex.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-09-16lpfc: fix locking issues with abort data pathsJames Smart1-1/+11
Fix locking issues with abort data paths Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: Dick Kennedy <dick.kennedy@emulex.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-09-16lpfc: use time_after()Manuel Schölling1-1/+3
To be future-proof and for better readability the time comparisons are modified to use time_after() instead of plain, error-prone math. Signed-off-by: Manuel Schölling <manuel.schoelling@gmx.de> Reviewed-by: James Smart <james.smart@emulex.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-09-16lpfc: mark functions as static in lpfc/lpfc_scsi.cRashika Kheria1-5/+5
Mark functions as static in lpfc/lpfc_scsi.c because they are not used outside this file. This eliminates the following warnings in lpfc/lpfc_scsi.c: drivers/scsi/lpfc/lpfc_scsi.c:299:1: warning: no previous prototype for ‘lpfc_change_queue_depth’ [-Wmissing-prototypes] drivers/scsi/lpfc/lpfc_scsi.c:795:1: warning: no previous prototype for ‘lpfc_sli4_post_scsi_sgl_list’ [-Wmissing-prototypes] drivers/scsi/lpfc/lpfc_scsi.c:3019:1: warning: no previous prototype for ‘lpfc_bg_crc’ [-Wmissing-prototypes] drivers/scsi/lpfc/lpfc_scsi.c:3035:1: warning: no previous prototype for ‘lpfc_bg_csum’ [-Wmissing-prototypes] drivers/scsi/lpfc/lpfc_scsi.c:3048:1: warning: no previous prototype for ‘lpfc_calc_bg_err’ [-Wmissing-prototypes] Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Reviewed-by: James Smart <james.smart@emulex.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-07-18scsi: use 64-bit LUNsHannes Reinecke1-18/+18
The SCSI standard defines 64-bit values for LUNs, and large arrays employing large or hierarchical LUN numbers become more and more common. So update the linux SCSI stack to use 64-bit LUN numbers. Signed-off-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Christoph Hellwig <hch@infradead.org> Reviewed-by: Ewan Milne <emilne@redhat.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-06-02lpfc: Update Copyright on changed filesJames Smart1-1/+1
Update Copyright on changed files Signed-off-by: James Smart <james.smart@emulex.com> Reviewed-By: Dick Kennedy <dick.kennedy@emulex.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-06-02lpfc: Fixed locking for scsi task management commandsJames Smart1-5/+20
Fixed locking for scsi task management commands. Signed-off-by: James Smart <james.smart@emulex.com> Reviewed-By: Dick Kennedy <dick.kennedy@emulex.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-06-02lpfc: Convert runtime references to old xlane cfg param to fof cfg paramJames Smart1-10/+10
Convert runtime references to old xlane cfg param to fof cfg param Signed-off-by: James Smart <james.smart@emulex.com> Reviewed-By: Dick Kennedy <dick.kennedy@emulex.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-06-02lpfc: Fixed kernel panic in lpfc_abort_handlerJames Smart1-0/+12
Fixed kernel panic in lpfc_abort_handler Signed-off-by: James Smart <james.smart@emulex.com> Reviewed-By: Dick Kennedy <dick.kennedy@emulex.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-06-02lpfc: Fix dynamic transitions of FirstBurst from on to offJames Smart1-0/+1
Fix dynamic transitions of FirstBurst from on to off Signed-off-by: James Smart <james.smart@emulex.com> Reviewed-By: Dick Kennedy <dick.kennedy@emulex.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-03-15[SCSI] lpfc 8.3.45: Fixed missing initialization for task management IOCBsJames Smart1-0/+2
Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-03-15[SCSI] lpfc 8.3.45: Incorporate changes to use reason in change_queue_depth ↵James Smart1-107/+19
function. Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-03-15[SCSI] lpfc 8.3.45: Incorporated support of a low-latency io pathJames Smart1-8/+398
Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-03-15[SCSI] lpfc 8.3.44: Fixed IO hang when in msi mode.James Smart1-0/+18
Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-10-25[SCSI] lpfc 8.3.43: Fixed not processing task management IOCB response statusJames Smart1-18/+94
This patch implements the changes requested by Jeremy Linton: http://marc.info/?l=linux-scsi&m=136242124409687&w=2 The patch revises the command issuing behavior, detecting cases where the Task Mgmt command may have completed but with a non-successful status, which it previously treated as a successful TMF. The patch also corrects a flushing of I/O that was done which should only be done on successful TMF completion. Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-10-25[SCSI] lpfc 8.3.43: Fix crash after xri limit is reached.James Smart1-7/+12
Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-09-11[SCSI] lpfc 8.3.42: Fixed issue of task management commands having a fixed ↵James Smart1-1/+1
timeout Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-09-11[SCSI] lpfc 8.3.42: Fixed inconsistent spin lock usage.James Smart1-14/+12
Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-09-11[SCSI] lpfc 8.3.42: Fix driver's abort loop functionality to skip IOs ↵James Smart1-0/+3
already getting aborted Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-09-11[SCSI] lpfc 8.3.42: Fixed failure to allocate SCSI buffer on PPC64 platform ↵James Smart1-3/+6
for SLI4 devices Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-09-11[SCSI] lpfc 8.3.42: Back out data count,(residual fcfi_parm) fix for bad target.James Smart1-3/+3
Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-09-11[SCSI] lpfc 8.3.42: Fix random errors using first burstJames Smart1-2/+7
Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
generated by cgit v1.2.3 (git 2.39.0) at 2025-09-23 23:41:05 +0300