On Thu, Oct 01, 2020 at 03:46:02PM +0100, Stefan Hajnoczi wrote:
> The vhost-user-blk server currently only supports 1 virtqueue. Add a
> 'num-queues' option for multi-queue. Both --device
> vhost-user-blk-pci,num-queues= and --export vhost-user-blk,num-queues= need to
> be set in order for multi-queue to work (otherwise it will fall back to 1
> virtqueue).
> 
> Based-on: 20200924151549.913737-1-stefanha@redhat.com ("[PATCH v2 00/13] block/export: convert vhost-user-blk-server to block exports API")
> 
> Stefan Hajnoczi (2):
>   block/export: add vhost-user-blk multi-queue support
>   tests/qtest: add multi-queue test case to vhost-user-blk-test
> 
>  qapi/block-export.json               |  6 ++-
>  block/export/vhost-user-blk-server.c | 24 ++++++---
>  tests/qtest/vhost-user-blk-test.c    | 81 ++++++++++++++++++++++++++--
>  3 files changed, 99 insertions(+), 12 deletions(-)
> 
> -- 
> 2.26.2
> 

Thanks, applied to my block tree with tab damage fixed:
https://github.com/stefanha/qemu/commits/block

Stefan