scsi: storvsc: Increase cmd_per_lun for higher speed devices

[ Upstream commit cabe92a55e3a12005a4ac4d3954c9a174b0efe2a ]

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@microsoft.com>
Reviewed-by: K. Y. Srinivasan <kys@microsoft.com>
Acked-by: K. Y. Srinivasan <kys@microsoft.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>

diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c
index 0dd1984..d92b280 100644 (file)
--- a/drivers/scsi/storvsc_drv.c
+++ b/drivers/scsi/storvsc_drv.c
@@ -1580,7 +1580,7 @@ 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 */