linux/drivers/scsi/libfc
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
..
Makefile [SCSI] libfc: add some generic NPIV support routines to libfc 2009-12-04 12:00:56 -06:00
fc_disc.c libfc, fcoe, bnx2fc: Split fc_disc_init into fc_disc_{init, config} 2013-03-25 16:03:03 -07:00
fc_elsct.c [SCSI] libfc: Make the libfc Common Transport(CT) code generic 2012-02-19 08:08:58 -06:00
fc_exch.c libfc: Do not invoke the response handler after fc_exch_done() 2013-09-04 13:45:22 -07:00
fc_fcp.c scsi: don't set tagging state from scsi_adjust_queue_depth 2014-11-12 11:19:43 +01:00
fc_frame.c [SCSI] libfc, fcoe, bnx2fc: cleanup fcoe_dev_stats 2012-07-20 08:31:47 +01:00
fc_libfc.c libfc: Replace rcu_assign_pointer() with RCU_INIT_POINTER() 2014-09-30 09:28:36 +02:00
fc_libfc.h libfc, libfcoe, fcoe: Convert debug_logging macros to pr_info 2012-12-14 10:38:55 -08:00
fc_lport.c libfc: Debug code fixes 2013-09-04 12:55:02 -07:00
fc_npiv.c scsi: Add export.h for EXPORT_SYMBOL/THIS_MODULE as required 2011-10-31 19:31:23 -04:00
fc_rport.c libfc: Source code comment spelling fixes 2013-09-04 12:47:49 -07:00