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Subject[PATCH 4.10 065/167] scsi: qla2xxx: Fix response queue count for Target mode.
Date
4.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Michael Hernandez <michael.hernandez@cavium.com>

commit d0d2c68b759bbf678e078fd0c71b5fde65a9392c upstream.

Target mode initialization was not calculating response queue values
correctly resulting into one less MSI-X vector.

[mkp: fixed Fixes: hash]

Fixes: 093df73771ba ("scsi: qla2xxx: Fix Target mode handling with Multiqueue changes.")
Signed-off-by: Michael Hernandez <michael.hernandez@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
drivers/scsi/qla2xxx/qla_os.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -1915,12 +1915,13 @@ qla83xx_iospace_config(struct qla_hw_dat
if (ql2xmqsupport) {
/* MB interrupt uses 1 vector */
ha->max_req_queues = ha->msix_count - 1;
- ha->max_rsp_queues = ha->max_req_queues;

/* ATIOQ needs 1 vector. That's 1 less QPair */
if (QLA_TGT_MODE_ENABLED())
ha->max_req_queues--;

+ ha->max_rsp_queues = ha->max_req_queues;
+
/* Queue pairs is the max value minus
* the base queue pair */
ha->max_qpairs = ha->max_req_queues - 1;

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