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/csiostor | |
| 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/csiostor')
| -rw-r--r-- | drivers/scsi/csiostor/csio_scsi.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/scsi/csiostor/csio_scsi.c b/drivers/scsi/csiostor/csio_scsi.c index 8231505cce0a..f73155db80a3 100644 --- a/drivers/scsi/csiostor/csio_scsi.c +++ b/drivers/scsi/csiostor/csio_scsi.c @@ -2241,11 +2241,7 @@ csio_slave_alloc(struct scsi_device *sdev) static int csio_slave_configure(struct scsi_device *sdev) { - if (sdev->tagged_supported) - scsi_activate_tcq(sdev, csio_lun_qdepth); - else - scsi_deactivate_tcq(sdev, csio_lun_qdepth); - + scsi_adjust_queue_depth(sdev, 0, csio_lun_qdepth); return 0; } @@ -2290,6 +2286,7 @@ struct scsi_host_template csio_fcoe_shost_template = { .use_clustering = ENABLE_CLUSTERING, .shost_attrs = csio_fcoe_lport_attrs, .max_sectors = CSIO_MAX_SECTOR_SIZE, + .use_blk_tags = 1, }; struct scsi_host_template csio_fcoe_shost_vport_template = { @@ -2309,6 +2306,7 @@ struct scsi_host_template csio_fcoe_shost_vport_template = { .use_clustering = ENABLE_CLUSTERING, .shost_attrs = csio_fcoe_vport_attrs, .max_sectors = CSIO_MAX_SECTOR_SIZE, + .use_blk_tags = 1, }; /* |