Re: [PATCH 3/5] vhost-user-blk: add VIRTIO_F_RING_PACKED feature bit

[Raphael Norwitz]

On Fri, May 22, 2020 at 1:20 PM Stefan Hajnoczi <address@hidden> wrote:
>
> Vhost devices have a list of feature bits that the device backend is
> allowed to control. The VIRTIO_F_RING_PACKED feature is a feature that
> must be negotiated through all the way to the device backend. Add it so
> the device backend can declare whether or not it supports the packed
> ring layout.
>
> Signed-off-by: Stefan Hajnoczi <address@hidden>

Reviewed-by: Raphael Norwitz <address@hidden>

> ---
>  hw/block/vhost-user-blk.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/hw/block/vhost-user-blk.c b/hw/block/vhost-user-blk.c
> index 9d8c0b3909..10e114a19a 100644
> --- a/hw/block/vhost-user-blk.c
> +++ b/hw/block/vhost-user-blk.c
> @@ -44,6 +44,7 @@ static const int user_feature_bits[] = {
>      VIRTIO_BLK_F_DISCARD,
>      VIRTIO_BLK_F_WRITE_ZEROES,
>      VIRTIO_F_VERSION_1,
> +    VIRTIO_F_RING_PACKED,
>      VIRTIO_RING_F_INDIRECT_DESC,
>      VIRTIO_RING_F_EVENT_IDX,
>      VIRTIO_F_NOTIFY_ON_EMPTY,
> --
> 2.25.3
>