From 2ecb204d07ac8debe3893c362415919bc78bebd6 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 3 Nov 2014 14:09:02 +0100 Subject: 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 Reviewed-by: Mike Christie Reviewed-by: Martin K. Petersen Reviewed-by: Hannes Reinecke --- drivers/target/loopback/tcm_loop.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/target') diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c index e30932f989a1..120a851df0d7 100644 --- a/drivers/target/loopback/tcm_loop.c +++ b/drivers/target/loopback/tcm_loop.c @@ -407,7 +407,6 @@ static int tcm_loop_slave_alloc(struct scsi_device *sd) static int tcm_loop_slave_configure(struct scsi_device *sd) { if (sd->tagged_supported) { - scsi_activate_tcq(sd, sd->queue_depth); scsi_adjust_queue_depth(sd, MSG_SIMPLE_TAG, sd->host->cmd_per_lun); } else { @@ -437,6 +436,7 @@ static struct scsi_host_template tcm_loop_driver_template = { .slave_alloc = tcm_loop_slave_alloc, .slave_configure = tcm_loop_slave_configure, .module = THIS_MODULE, + .use_blk_tags = 1, }; static int tcm_loop_driver_probe(struct device *dev) -- cgit v1.2.3