From: Christof Schmitt <christof.schmitt@xxxxxxxxxx>
Adapt the change_queue_depth callback in zfcp for the new reason
parameter. Simply pass each call back to the SCSI midlayer, there are
no resource adjustments necessary for zfcp.
Signed-off-by: Christof Schmitt <christof.schmitt@xxxxxxxxxx>
Signed-off-by: Vasu Dev <vasu.dev@xxxxxxxxx>
---
drivers/s390/scsi/zfcp_scsi.c | 16 ++++++++++++++--
1 files changed, 14 insertions(+), 2 deletions(-)
diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c
index bdff1bf..287ebb8 100644
--- a/drivers/s390/scsi/zfcp_scsi.c
+++ b/drivers/s390/scsi/zfcp_scsi.c
@@ -31,9 +31,21 @@ char *zfcp_get_fcp_sns_info_ptr(struct fcp_rsp_iu *fcp_rsp_iu)
static int zfcp_scsi_change_queue_depth(struct scsi_device *sdev, int depth,
int reason)
{
- if (reason != SCSI_QDEPTH_DEFAULT)
+ switch (reason) {
+ case SCSI_QDEPTH_DEFAULT:
+ scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), depth);
+ break;
+ case SCSI_QDEPTH_QFULL:
+ scsi_track_queue_full(sdev, depth);
+ break;
+ case SCSI_QDEPTH_RAMP_UP:
+ if (depth <= default_depth)
+ scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev),
+ depth);
+ break;
+ default:
return -EOPNOTSUPP;
- scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), depth);
+ }
return sdev->queue_depth;
}
--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
