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authorShivasharan S <shivasharan.srikanteshwara@broadcom.com>2018-04-06 02:02:11 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-08-03 07:50:41 +0200
commit07b2a0d0018381c7b9760e6d3ceb72f683ad46ba (patch)
tree81de2f93ccc483c5f50d7493dc197bfed3a2bf1b
parent0b45eb5a340d100856721c8ba9a49e29e655d7f7 (diff)
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>
-rw-r--r--drivers/scsi/megaraid/megaraid_sas_fusion.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c
index d8f626567f59..06a2e3d9fc5b 100644
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.c
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c
@@ -2677,6 +2677,9 @@ megasas_build_syspd_fusion(struct megasas_instance *instance,
pRAID_Context->timeout_value = cpu_to_le16(os_timeout_value);
pRAID_Context->virtual_disk_tgt_id = 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) ?