scsi: never drop to untagged mode during queue ramp down

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Dropping to untagged mode when ramping down a queue due to QUEUE FULL
events has two problems:

 - nothing in the midlayer or drivers ever moves back to tagged mode
   during queue ramp up.
 - cmd_per_lun isn't the untagged queue depth for many modern drivers
   that can handle multiple untagged commands, and this is the only
   place in the midlayer assuming that.

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>

...

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Christoph Hellwig 2014-11-24 15:36:19 +01:00

parent efc3c1df5f

commit b70870c38e

1 changed files with 0 additions and 6 deletions

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drivers/scsi/scsi.c

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