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| author | Christoph Hellwig <hch@lst.de> | 2014-11-24 15:36:19 +0100 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2014-12-04 09:55:46 +0100 |
| commit | b70870c38ede2bb5b0a738f2f69de145a1931a00 (patch) | |
| tree | abab1e4813644f240a46618a3e6af99627da9f11 /drivers/scsi/ipr.c | |
| parent | efc3c1df5fda0aee84f53c226d55804e6dbede4f (diff) | |
| download | lwn-b70870c38ede2bb5b0a738f2f69de145a1931a00.tar.gz lwn-b70870c38ede2bb5b0a738f2f69de145a1931a00.zip | |
scsi: never drop to untagged mode during queue ramp down
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>
Diffstat (limited to 'drivers/scsi/ipr.c')
0 files changed, 0 insertions, 0 deletions