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| author |   Christof Schmitt <christof.schmitt@de.ibm.com> | 2009-10-15 17:47:11 -0700 |
|---|---|---|
| committer |   James Bottomley <James.Bottomley@suse.de> | 2009-12-04 12:00:45 -0600 |
| commit | 42e62a74377bcbb526565a31aa18da8f712b93ee (patch) | |
| tree | 61692fdff92370cb58fbe3fe7a82162ee58de831 /drivers/s390 | |
| parent | [SCSI] libfc: add queue_depth ramp up (diff) | |
| download | linux-dev-42e62a74377bcbb526565a31aa18da8f712b93ee.tar.xz linux-dev-42e62a74377bcbb526565a31aa18da8f712b93ee.zip | |
[SCSI] zfcp: Adapt change_queue_depth for queue full tracking
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@de.ibm.com>
Removes check for (depth <= default_depth) in case of
SCSI_QDEPTH_RAMP_UP call back, not needed after added
max_queue_depth per sdev.
Signed-off-by: Vasu Dev <vasu.dev@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/s390')
| -rw-r--r-- | drivers/s390/scsi/zfcp_scsi.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c index ad1154701729..f54655998bd5 100644 --- a/drivers/s390/scsi/zfcp_scsi.c +++ b/drivers/s390/scsi/zfcp_scsi.c @@ -32,10 +32,19 @@ 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: + 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; } |