scsi: storvsc: Add ability to change scsi queue depth (adfbd028) · Commits · 戴 / test

Adding functionality to allow the SCSI queue depth to be changed by utilizing the "scsi_change_queue_depth" function. [mkp: checkpatch] Signed-off-by:

Branden Bonaby <brandonbonaby94@gmail.com> Reviewed-by:

Michael Kelley <mikelley@microsoft.com> Reviewed-by:

K. Y. Srinivasan <kys@microsoft.com> Signed-off-by:

Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/storvsc_drv.c

+11 −0

Original line number	Diff line number	Diff line
		@@ -387,6 +387,7 @@ enum storvsc_request_type {

		static int storvsc_ringbuffer_size = (128 * 1024);
		static u32 max_outstanding_req_per_channel;
		static int storvsc_change_queue_depth(struct scsi_device *sdev, int queue_depth);

		static int storvsc_vcpus_per_sub_channel = 4;

		@@ -1711,6 +1712,7 @@ static struct scsi_host_template scsi_driver = {
		.dma_boundary = PAGE_SIZE-1,
		.no_write_same = 1,
		.track_queue_depth = 1,
		.change_queue_depth = storvsc_change_queue_depth,
		};

		enum {
		@@ -1917,6 +1919,15 @@ err_out0:
		return ret;
		}

		/* Change a scsi target's queue depth */
		static int storvsc_change_queue_depth(struct scsi_device *sdev, int queue_depth)
		{
		if (queue_depth > scsi_driver.can_queue)
		queue_depth = scsi_driver.can_queue;

		return scsi_change_queue_depth(sdev, queue_depth);
		}

		static int storvsc_remove(struct hv_device *dev)
		{
		struct storvsc_device *stor_device = hv_get_drvdata(dev);

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