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

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[ 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>
This commit is contained in:
Shivasharan S 2018-04-06 02:02:11 -07:00 committed by Greg Kroah-Hartman
parent 87812af9bb
commit dd476b5e5b
1 changed files with 3 additions and 0 deletions
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3
drivers/scsi/megaraid/megaraid_sas_fusion.c
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@ -1886,6 +1886,9 @@ 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) ?