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authorAnirban Chakraborty2009-04-06 22:33:41 -0700
committerJames Bottomley2009-05-20 17:21:08 -0500
commit68ca949cdb04b4dc71451a999148fbc5f187a220 (patch)
treed1d06940e8f128804529386ccea9c0757e61db0f /drivers/scsi/qla2xxx/qla_def.h
parent2afa19a9377ca61b9489e44bf50029574fbe63be (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_def.h')
-rw-r--r--drivers/scsi/qla2xxx/qla_def.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index 57d659cf99ee..09190ba411fd 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -2171,6 +2171,7 @@ struct rsp_que {
struct qla_msix_entry *msix;
struct req_que *req;
srb_t *status_srb; /* status continuation entry */
+ struct work_struct q_work;
};
/* Request queue data structure */
@@ -2539,6 +2540,7 @@ struct qla_hw_data {
struct qla_chip_state_84xx *cs84xx;
struct qla_statistics qla_stats;
struct isp_operations *isp_ops;
+ struct workqueue_struct *wq;
};
/*