4.9-stable review patch. If anyone has any objections, please let me know.
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From: "Michael Kelley (EOSG)" Michael.H.Kelley@microsoft.com
[ 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 --- drivers/scsi/storvsc_drv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/scsi/storvsc_drv.c +++ b/drivers/scsi/storvsc_drv.c @@ -1580,7 +1580,7 @@ static struct scsi_host_template scsi_dr .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 */