diff options
| author | Anirban Chakraborty <anirban.chakraborty@qlogic.com> | 2009-04-06 22:33:41 -0700 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2009-05-20 17:21:08 -0500 |
| commit | 68ca949cdb04b4dc71451a999148fbc5f187a220 (patch) | |
| tree | d1d06940e8f128804529386ccea9c0757e61db0f /drivers/scsi/qla2xxx/qla_attr.c | |
| parent | 2afa19a9377ca61b9489e44bf50029574fbe63be (diff) | |
[SCSI] qla2xxx: Add CPU affinity support.
Set the module parameter ql2xmultique_tag to 1 to enable this
feature. In this mode, the total number of response queues
created is equal to the number of online cpus. Turning the block
layer's rq_affinity mode on enables requests to be routed to the
proper cpu and at the same time it enables completion of the IO
in a response queue that is affined to the cpu in the request
path.
Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_attr.c')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_attr.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c index bda6658d4fb..f3536e56dce 100644 --- a/drivers/scsi/qla2xxx/qla_attr.c +++ b/drivers/scsi/qla2xxx/qla_attr.c @@ -1531,7 +1531,7 @@ qla24xx_vport_create(struct fc_vport *fc_vport, bool disable) qla24xx_vport_disable(fc_vport, disable); ret = 0; - if (ha->cur_vport_count <= ha->flex_port_count + if (ha->cur_vport_count <= ha->flex_port_count || ql2xmultique_tag || ha->max_req_queues == 1 || !ha->npiv_info) goto vport_queue; /* Create a request queue in QoS mode for the vport */ @@ -1599,7 +1599,7 @@ qla24xx_vport_delete(struct fc_vport *fc_vport) vha->host_no, vha->vp_idx, vha)); } - if (vha->req->id) { + if (vha->req->id && !ql2xmultique_tag) { if (qla25xx_delete_req_que(vha, vha->req) != QLA_SUCCESS) qla_printk(KERN_WARNING, ha, "Queue delete failed.\n"); |