linux_dsm_epyc7002/drivers/scsi/mpt2sas
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
..
mpi mpt2sas: MPI2 Rev Y (2.00.17) and Rev Z (2.00.18) specifications 2014-09-16 09:14:13 -07:00
Kconfig mpt2sas: Copyright in driver sources is updated for year the 2014 2014-09-16 09:14:14 -07:00
Makefile
mpt2sas_base.c mpt2sas: Get IOC_FACTS information using handshake protocol only after HBA card gets into READY or Operational state. 2014-09-16 09:14:16 -07:00
mpt2sas_base.h mpt2sas: Bump mpt2sas driver version to 18.100.00.00 2014-09-16 09:14:17 -07:00
mpt2sas_config.c mpt2sas: Copyright in driver sources is updated for year the 2014 2014-09-16 09:14:14 -07:00
mpt2sas_ctl.c mpt2sas: Copyright in driver sources is updated for year the 2014 2014-09-16 09:14:14 -07:00
mpt2sas_ctl.h mpt2sas: Copyright in driver sources is updated for year the 2014 2014-09-16 09:14:14 -07:00
mpt2sas_debug.h mpt2sas: Copyright in driver sources is updated for year the 2014 2014-09-16 09:14:14 -07:00
mpt2sas_scsih.c scsi: don't set tagging state from scsi_adjust_queue_depth 2014-11-12 11:19:43 +01:00
mpt2sas_transport.c mpt2sas: Copyright in driver sources is updated for year the 2014 2014-09-16 09:14:14 -07:00