[azure][PATCH 1/3] UBUNTU: SAUCE: scsi: storvsc: Increase cmd_per_lun for higher speed devices

[Marcelo Henrique Cerri]

From: Michael Kelley <mikelley at ntdev.microsoft.com>

BugLink: http://bugs.launchpad.net/bugs/1745261

Increase cmd_per_lun to allow more I/Os in progress per device,
particularly for NVMe's.  The Hyper-V host side can handle the
higher count with no issues.

Signed-off-by: Michael Kelley <mikelley at microsoft.com>
Signed-off-by: Marcelo Henrique Cerri <marcelo.cerri at canonical.com>
---
 drivers/scsi/storvsc_drv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c
index b9f64823dd7a..57a6e16e7741 100644
--- a/drivers/scsi/storvsc_drv.c
+++ b/drivers/scsi/storvsc_drv.c
@@ -1660,7 +1660,7 @@ static struct scsi_host_template scsi_driver = {
 	.eh_timed_out =		storvsc_eh_timed_out,
 	.slave_alloc =		storvsc_device_alloc,
 	.slave_configure =	storvsc_device_configure,
-	.cmd_per_lun =		255,
+	.cmd_per_lun =		2048,
 	.this_id =		-1,
 	.use_clustering =	ENABLE_CLUSTERING,
 	/* Make sure we dont get a sg segment crosses a page boundary */
-- 
2.7.4