Commit 3930d730 authored Jun 13, 2017 by Long Li Committed by Martin K. Petersen Jun 26, 2017

scsi: storvsc: use default I/O timeout handler for FC devices



FC disks issue I/O directly to the host storage port driver, this is
diffirent to VHD disks where I/O is virtualized and timeout is handled
by the host VSP (Virtualization Service Provider).

FC disks are usually setup in a multipath system, and they don't want to
reset timer on I/O timeout. Timeout is detected by multipath as a good
time to failover and recover.

Signed-off-by: Long Li <longli@microsoft.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

parent 5cc973f0

drivers/scsi/storvsc_drv.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -1495,6 +1495,10 @@ static int storvsc_host_reset_handler(struct scsi_cmnd *scmnd)
		*/
		static enum blk_eh_timer_return storvsc_eh_timed_out(struct scsi_cmnd *scmnd)
		{
		#if IS_ENABLED(CONFIG_SCSI_FC_ATTRS)
		if (scmnd->device->host->transportt == fc_transport_template)
		return fc_eh_timed_out(scmnd);
		#endif
		return BLK_EH_RESET_TIMER;
		}