[PATCH v2 08/11] qla2xxx: Check if FW supports MQ before enabling

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From: Saurav Kashyap <skashyap@xxxxxxxxxxx>

OS boot during Boot from SAN was stuck at dracut emergency shell
after enabling nvme driver parameter. For non MQ support the driver
was enabling MQ. Add a check to confirm if FW supports MQ.

Signed-off-by: Saurav Kashyap <skashyap@xxxxxxxxxxx>
Signed-off-by: Nilesh Javali <njavali@xxxxxxxxxxx>
---
 drivers/scsi/qla2xxx/qla_os.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 9b59f032a569..fda812b9b564 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -2017,6 +2017,11 @@ qla2x00_iospace_config(struct qla_hw_data *ha)
 	/* Determine queue resources */
 	ha->max_req_queues = ha->max_rsp_queues = 1;
 	ha->msix_count = QLA_BASE_VECTORS;
+
+	/* Check if FW supports MQ or not */
+	if (!(ha->fw_attributes & BIT_6))
+		goto mqiobase_exit;
+
 	if (!ql2xmqsupport || !ql2xnvmeenable ||
 	    (!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
 		goto mqiobase_exit;
-- 
2.19.0.rc0




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