diff options
| author | Christoph Hellwig <hch@lst.de> | 2014-10-02 14:39:55 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2014-11-12 11:19:39 +0100 |
| commit | a62182f338b39a22035531c6afc0a8d2928b1df2 (patch) | |
| tree | 57ca6cea82a09d2655daf5c161024c5015373646 /drivers/scsi/ipr.c | |
| parent | 1d5203284d8acbdfdf9b478d434450b34f338f28 (diff) | |
| download | blackbird-op-linux-a62182f338b39a22035531c6afc0a8d2928b1df2.tar.gz blackbird-op-linux-a62182f338b39a22035531c6afc0a8d2928b1df2.zip | |
scsi: provide a generic change_queue_type method
Most drivers use exactly the same implementation, so provide it as a
library function.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
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/ipr.c')
| -rw-r--r-- | drivers/scsi/ipr.c | 20 |
1 files changed, 3 insertions, 17 deletions
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c index 2a9578c116b7..3d689f6023e9 100644 --- a/drivers/scsi/ipr.c +++ b/drivers/scsi/ipr.c @@ -4364,24 +4364,10 @@ static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type) spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); res = (struct ipr_resource_entry *)sdev->hostdata; - - if (res) { - if (ipr_is_gscsi(res) && sdev->tagged_supported) { - /* - * We don't bother quiescing the device here since the - * adapter firmware does it for us. - */ - scsi_set_tag_type(sdev, tag_type); - - if (tag_type) - scsi_activate_tcq(sdev, sdev->queue_depth); - else - scsi_deactivate_tcq(sdev, sdev->queue_depth); - } else - tag_type = 0; - } else + if (res && ipr_is_gscsi(res)) + tag_type = scsi_change_queue_type(sdev, tag_type); + else tag_type = 0; - spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); return tag_type; } |
