diff options
| author | Christoph Hellwig <hch@lst.de> | 2014-11-03 16:09:02 +0300 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2014-11-12 13:19:43 +0300 |
| commit | 2ecb204d07ac8debe3893c362415919bc78bebd6 (patch) | |
| tree | eef99b324201b21de358dffdab8bfc0453358d5f /drivers/scsi/esp_scsi.c | |
| parent | e2eddf4d530df745019fded0fedfb78f6d3e33ca (diff) | |
| download | linux-2ecb204d07ac8debe3893c362415919bc78bebd6.tar.xz | |
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/esp_scsi.c')
| -rw-r--r-- | drivers/scsi/esp_scsi.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/scsi/esp_scsi.c b/drivers/scsi/esp_scsi.c index b23101b28bfa..66b6ce10b259 100644 --- a/drivers/scsi/esp_scsi.c +++ b/drivers/scsi/esp_scsi.c @@ -2419,10 +2419,9 @@ static int esp_slave_configure(struct scsi_device *dev) queue_depth = dev->host->cmd_per_lun; if (goal_tags) { - scsi_set_tag_type(dev, MSG_ORDERED_TAG); - scsi_activate_tcq(dev, queue_depth); + scsi_adjust_queue_depth(dev, MSG_ORDERED_TAG, queue_depth); } else { - scsi_deactivate_tcq(dev, queue_depth); + scsi_adjust_queue_depth(dev, 0, queue_depth); } tp->flags |= ESP_TGT_DISCONNECT; @@ -2631,6 +2630,7 @@ struct scsi_host_template scsi_esp_template = { .use_clustering = ENABLE_CLUSTERING, .max_sectors = 0xffff, .skip_settle_delay = 1, + .use_blk_tags = 1, }; EXPORT_SYMBOL(scsi_esp_template); |