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| author | Mike Christie <michaelc@cs.wisc.edu> | 2009-04-22 00:32:32 +0400 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2009-04-27 19:09:54 +0400 |
| commit | 6b5d6c443a9b4fd71b633cef66b5db4de8a85787 (patch) | |
| tree | 6b0ca6eaba58d51d3a0715ba9be40bf5449b40ed /drivers/scsi | |
| parent | 9a6510eb3f030cedba32664498a610dc6d084d46 (diff) | |
| download | linux-6b5d6c443a9b4fd71b633cef66b5db4de8a85787.tar.xz | |
[SCSI] cxgb3i, iser, iscsi_tcp: set target can queue
Set target can queue limit to the number of preallocated
session tasks we have.
This along with the cxgb3i can_queue patch will fix a throughput
problem where it could only queue one LU worth of data at a time.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/cxgb3i/cxgb3i_iscsi.c | 1 | ||||
| -rw-r--r-- | drivers/scsi/iscsi_tcp.c | 1 | ||||
| -rw-r--r-- | drivers/scsi/libiscsi.c | 10 |
3 files changed, 12 insertions, 0 deletions
diff --git a/drivers/scsi/cxgb3i/cxgb3i_iscsi.c b/drivers/scsi/cxgb3i/cxgb3i_iscsi.c index fff8e4327644..b3ca3a05f0d9 100644 --- a/drivers/scsi/cxgb3i/cxgb3i_iscsi.c +++ b/drivers/scsi/cxgb3i/cxgb3i_iscsi.c @@ -883,6 +883,7 @@ static struct scsi_host_template cxgb3i_host_template = { .eh_abort_handler = iscsi_eh_abort, .eh_device_reset_handler = iscsi_eh_device_reset, .eh_target_reset_handler = iscsi_eh_target_reset, + .target_alloc = iscsi_target_alloc, .use_clustering = DISABLE_CLUSTERING, .this_id = -1, }; diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c index f97fc7e9de79..b7c092d63bbe 100644 --- a/drivers/scsi/iscsi_tcp.c +++ b/drivers/scsi/iscsi_tcp.c @@ -851,6 +851,7 @@ static struct scsi_host_template iscsi_sw_tcp_sht = { .use_clustering = DISABLE_CLUSTERING, .slave_alloc = iscsi_sw_tcp_slave_alloc, .slave_configure = iscsi_sw_tcp_slave_configure, + .target_alloc = iscsi_target_alloc, .proc_name = "iscsi_tcp", .this_id = -1, }; diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index 689628359169..e72b4ad47d35 100644 --- a/drivers/scsi/libiscsi.c +++ b/drivers/scsi/libiscsi.c @@ -1463,6 +1463,16 @@ int iscsi_change_queue_depth(struct scsi_device *sdev, int depth) } EXPORT_SYMBOL_GPL(iscsi_change_queue_depth); +int iscsi_target_alloc(struct scsi_target *starget) +{ + struct iscsi_cls_session *cls_session = starget_to_session(starget); + struct iscsi_session *session = cls_session->dd_data; + + starget->can_queue = session->scsi_cmds_max; + return 0; +} +EXPORT_SYMBOL_GPL(iscsi_target_alloc); + void iscsi_session_recovery_timedout(struct iscsi_cls_session *cls_session) { struct iscsi_session *session = cls_session->dd_data; |