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/qla4xxx/ql4_os.c | |
| parent | e2eddf4d530df745019fded0fedfb78f6d3e33ca (diff) | |
| download | linux-2ecb204d07ac8debe3893c362415919bc78bebd6.tar.bz2 | |
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/qla4xxx/ql4_os.c')
| -rw-r--r-- | drivers/scsi/qla4xxx/ql4_os.c | 10 |
1 files changed, 2 insertions, 8 deletions
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index 199fcf79a051..f3119c144e29 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -163,7 +163,6 @@ static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd); static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd); static int qla4xxx_slave_alloc(struct scsi_device *device); static int qla4xxx_slave_configure(struct scsi_device *device); -static void qla4xxx_slave_destroy(struct scsi_device *sdev); static umode_t qla4_attr_is_visible(int param_type, int param); static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type); static int qla4xxx_change_queue_depth(struct scsi_device *sdev, int qdepth, @@ -206,7 +205,6 @@ static struct scsi_host_template qla4xxx_driver_template = { .slave_configure = qla4xxx_slave_configure, .slave_alloc = qla4xxx_slave_alloc, - .slave_destroy = qla4xxx_slave_destroy, .change_queue_depth = qla4xxx_change_queue_depth, .this_id = -1, @@ -218,6 +216,7 @@ static struct scsi_host_template qla4xxx_driver_template = { .shost_attrs = qla4xxx_host_attrs, .host_reset = qla4xxx_host_reset, .vendor_id = SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC, + .use_blk_tags = 1, }; static struct iscsi_transport qla4xxx_iscsi_transport = { @@ -9065,7 +9064,7 @@ static int qla4xxx_slave_alloc(struct scsi_device *sdev) if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU) queue_depth = ql4xmaxqdepth; - scsi_activate_tcq(sdev, queue_depth); + scsi_adjust_queue_depth(sdev, 0, queue_depth); return 0; } @@ -9075,11 +9074,6 @@ static int qla4xxx_slave_configure(struct scsi_device *sdev) return 0; } -static void qla4xxx_slave_destroy(struct scsi_device *sdev) -{ - scsi_deactivate_tcq(sdev, 1); -} - static int qla4xxx_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) { |