linux_dsm_epyc7002/drivers/scsi/ibmvscsi
Christoph Hellwig c8b09f6fb6 scsi: don't set tagging state from scsi_adjust_queue_depth
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>
2014-11-12 11:19:43 +01:00
..
ibmvfc.c scsi: don't set tagging state from scsi_adjust_queue_depth 2014-11-12 11:19:43 +01:00
ibmvfc.h ibmvfc: fix little endian issues 2014-07-25 17:16:55 -04:00
ibmvscsi.c scsi: don't set tagging state from scsi_adjust_queue_depth 2014-11-12 11:19:43 +01:00
ibmvscsi.h [SCSI] ibmvscsi: Remove backend abstraction 2012-09-24 12:11:09 +04:00
Makefile ibmvstgt: remove 2014-07-17 22:07:43 +02:00
viosrp.h [SCSI] ibmvscsi: Fix little endian issues 2013-09-06 11:38:19 -07:00