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path: root/drivers/scsi/lpfc/lpfc_scsi.c
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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>
2013-08-23[SCSI] lpfc 8.3.41: Add first burst support to driverJames Smart1-0/+5
Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-08-23[SCSI] lpfc 8.3.41: Fixed SLI3 failing FCP write on check-condition no-sense ↵James Smart1-6/+1
with residual zero Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-08-23[SCSI] lpfc 8.3.41: Fixed freeing of iocb when internal loopback times outJames Smart1-1/+1
Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-26[SCSI] lpfc 8.3.40: Update Copyrights to 2013 for 8.3.38, 8.3.39, and 8.3.40 ↵James Smart1-1/+1
modifications Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-26[SCSI] lpfc 8.3.40: Fixed system panic due to unsafe walking and deleting ↵James Smart1-4/+5
linked list Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-26[SCSI] lpfc 8.3.40: Fix starting reference tag when calculating BG errorJames Smart1-1/+1
Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-26[SCSI] lpfc 8.3.40: Fix BlockGuard error checkingJames Smart1-47/+62
Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-26[SCSI] lpfc 8.3.40: Fixed crash during FCoE failover testing.James Smart1-1/+2
Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-05-03[SCSI] lpfc 8.3.39: Fixed iocb flags not being reset for scsi commandsJames Smart1-0/+2
Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-05-03[SCSI] lpfc 8.3.39: Fixed not returning FAILED status when SCSI invoking ↵James Smart1-3/+11
host reset handler failed Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-05-03[SCSI] lpfc 8.3.39: Fixed BlockGuard to take advantage of ↵James Smart1-66/+115
rdprotect/wrprotect info when available Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-05-03[SCSI] lpfc 8.3.39: Reduced spinlock contention on SCSI buffer listJames Smart1-33/+60
Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-05-02[SCSI] lpfc 8.3.39: Fix driver issues with large s/g lists for BlockGuardJames Smart1-85/+144
Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-05-02[SCSI] lpfc 8.3.39: Remove driver dependency on HZJames Smart1-1/+1
Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-05-02[SCSI] lpfc 8.3.39: Fixed BlockGuard error reportingJames Smart1-25/+254
Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-04-10[SCSI] lpfc 8.3.38: Fixed circular locking dependency and inconsistent lock ↵James Smart1-2/+2
state issues Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-04-10[SCSI] lpfc 8.3.38: Fixed NMI watch dog panic's when resetting the hba.James Smart1-2/+2
Fixed NMI watch dog panic's when resetting the hba. Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-01-30[SCSI] lpfc 8.3.37: Provide support for change_queue_typeJames Smart1-1/+23
Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-11-27[SCSI] lpfc 8.3.36: Update DIF support for passthru/strip/insertJames Smart1-1/+15
Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-11-27[SCSI] lpfc 8.3.36: Fix bug with Target Resets and FCP2 devicesJames Smart1-0/+3
Fix bug with Target Resets and FCP2 devices Create module parameter to disable Target Reset on FCP-Tape devices when a "bus reset" is requested. Default is to reset all devices on bus reset. Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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