scsi: megaraid_sas: For SRIOV enabled firmware, ensure VF driver waits for 30secs...

For SRIOV enabled firmware, if there is a OCR(online controller reset)
possibility driver set the convert flag to 1, which is not happening if
there are outstanding commands even after 180 seconds.  As driver does
not set convert flag to 1 and still making the OCR to run, VF(Virtual
function) driver is directly writing on to the register instead of
waiting for 30 seconds. Setting convert flag to 1 will cause VF driver
will wait for 30 secs before going for reset.

CC: stable@vger.kernel.org
Signed-off-by: Kiran Kumar Kasturi <kiran-kumar.kasturi@broadcom.com>
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c
index 52d8bbf7feb5c50efe361aa2e57f30277f38a0df..61be7ed73a7c39584247f4238d9687b15f0b7189 100644 (file)
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.c
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c
@@ -2823,6 +2823,7 @@ int megasas_wait_for_outstanding_fusion(struct megasas_instance *instance,
                dev_err(&instance->pdev->dev, "pending commands remain after waiting, "
                       "will reset adapter scsi%d.\n",
                       instance->host->host_no);
+               *convert = 1;
                retval = 1;
        }
 out: