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Commit 6e8738c1 authored by Shivasharan S's avatar Shivasharan S Committed by Greg Kroah-Hartman
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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: default avatarShivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: default avatarSasha Levin <alexander.levin@microsoft.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 6337861a

drivers/scsi/megaraid/megaraid_sas_fusion.c

+3 −0
Original line number Diff line number Diff line
@@ -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) ?