Re: [PATCH v2] virtio-blk: support per-device queue depth

On 2021/2/19 11:06 上午, Joseph Qi wrote:

Hi Michael,
Could you take this now?

It has been merged:

https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git/commit/?h=vhost&id=8c6daa79e527a05adb6f5d42cbed2fe36c6b3e83

Thanks

Thanks,
Joseph

On 2/1/21 10:17 AM, Joseph Qi wrote:

quoted

Ping...

On 1/26/21 7:13 PM, Stefan Hajnoczi wrote:

quoted

On Fri, Jan 22, 2021 at 05:21:46PM +0800, Joseph Qi wrote:

quoted

module parameter 'virtblk_queue_depth' was firstly introduced for
testing/benchmarking purposes described in commit fc4324b4597c
("virtio-blk: base queue-depth on virtqueue ringsize or module param").
And currently 'virtblk_queue_depth' is used as a saved value for the
first probed device.
Since we have different virtio-blk devices which have different
capabilities, it requires that we support per-device queue depth instead
of per-module. So defaultly use vq free elements if module parameter
'virtblk_queue_depth' is not set.

Signed-off-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Acked-by: Jason Wang <redacted>
---
  drivers/block/virtio_blk.c | 11 +++++++----
  1 file changed, 7 insertions(+), 4 deletions(-)

quoted

quoted

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>

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