scsi: megaraid_sas: Increase timeout by 1 sec for non-RAID fastpath IOs

[ Upstream commit 3239b8cd28fd849a2023483257d35d68c5876c74 ]

Hardware could time out Fastpath IOs one second earlier than the timeout
provided by the host.

For non-RAID devices, driver provides timeout value based on OS provided
timeout value. Under certain scenarios, if the OS provides a timeout
value of 1 second, due to above behavior hardware will timeout
immediately.

Increase timeout value for non-RAID fastpath IOs by 1 second.

Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c
index a156451..f722a0e 100644 (file)
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.c
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c
@@ -2031,6 +2031,9 @@ megasas_build_syspd_fusion(struct megasas_instance *instance,
                pRAID_Context->timeoutValue = cpu_to_le16(os_timeout_value);
                pRAID_Context->VirtualDiskTgtId = cpu_to_le16(device_id);
        } else {
+               if (os_timeout_value)
+                       os_timeout_value++;
+
                /* system pd Fast Path */
                io_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
                timeout_limit = (scmd->device->type == TYPE_DISK) ?