diff options
| author | Christoph Hellwig <hch@lst.de> | 2014-11-03 14:09:02 +0100 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2014-11-12 11:19:43 +0100 |
| commit | 2ecb204d07ac8debe3893c362415919bc78bebd6 (patch) | |
| tree | eef99b324201b21de358dffdab8bfc0453358d5f /drivers/scsi/tmscsim.c | |
| parent | scsi: remove use_blk_tcq Scsi_Host field (diff) | |
| download | linux-2ecb204d07ac8debe3893c362415919bc78bebd6.tar.xz linux-2ecb204d07ac8debe3893c362415919bc78bebd6.zip | |
scsi: always assign block layer tags if enabled
Allow a driver to ask for block layer tags by setting .use_blk_tags in the
host template, in which case it will always see a valid value in
request->tag, similar to the behavior when using blk-mq. This means even
SCSI "untagged" commands will now have a tag, which is especially useful
when using a host-wide tag map.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Diffstat (limited to 'drivers/scsi/tmscsim.c')
| -rw-r--r-- | drivers/scsi/tmscsim.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/scsi/tmscsim.c b/drivers/scsi/tmscsim.c index 547812437a7c..6369f9a282f1 100644 --- a/drivers/scsi/tmscsim.c +++ b/drivers/scsi/tmscsim.c @@ -2187,7 +2187,7 @@ static int dc390_slave_configure(struct scsi_device *sdev) acb->scan_devices = 0; if (sdev->tagged_supported && (dcb->DevMode & TAG_QUEUEING_)) { dcb->SyncMode |= EN_TAG_QUEUEING; - scsi_activate_tcq(sdev, acb->TagMaxNum); + scsi_adjust_queue_depth(sdev, 0, acb->TagMaxNum); } return 0; @@ -2209,6 +2209,7 @@ static struct scsi_host_template driver_template = { .cmd_per_lun = 1, .use_clustering = ENABLE_CLUSTERING, .max_sectors = 0x4000, /* 8MiB = 16 * 1024 * 512 */ + .use_blk_tags = 1, }; /*********************************************************************** |