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[04/22] qla2xxx: Skip IRQ affinity for Target QPairs

Message ID 20171128193503.13695-5-himanshu.madhani@cavium.com (mailing list archive)
State Superseded
Headers show

Commit Message

Madhani, Himanshu Nov. 28, 2017, 7:34 p.m. UTC 
From: Quinn Tran <quinn.tran@cavium.com>

Fix co-existence between Block MQ and Target Mode. Block MQ
and initiator mode requires midlayer queue mapping to check
for IRQ to be affinitize. For target mode, it's not the case.

Fixes: 09620eeb62c41 ("scsi: qla2xxx: Add debug knob for user control workload")
Cc: <stable@vger.kernel.org> # 4.12+
Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
---
 drivers/scsi/qla2xxx/qla_os.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
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Patch

diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index dfbf82e716b0..428e1bfaa83b 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -6609,9 +6609,14 @@  qla83xx_disable_laser(scsi_qla_host_t *vha)
 
 static int qla2xxx_map_queues(struct Scsi_Host *shost)
 {
+	int rc;
 	scsi_qla_host_t *vha = (scsi_qla_host_t *)shost->hostdata;
 
-	return blk_mq_pci_map_queues(&shost->tag_set, vha->hw->pdev);
+	if (USER_CTRL_IRQ(vha->hw))
+		rc = blk_mq_map_queues(&shost->tag_set);
+	else
+		rc = blk_mq_pci_map_queues(&shost->tag_set, vha->hw->pdev);
+	return rc;
 }
 
 static const struct pci_error_handlers qla2xxx_err_handler = {