[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 <[email protected]>
Signed-off-by: Andrew Vasquez <[email protected]>
Signed-off-by: James Bottomley <[email protected]>
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index 57d659c..09190ba 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -2171,6 +2171,7 @@
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_chip_state_84xx *cs84xx;
struct qla_statistics qla_stats;
struct isp_operations *isp_ops;
+ struct workqueue_struct *wq;
};
/*
