[PATCH v7 02/26] virtio: queue_reset: add VIRTIO_F_RING_RESET

[Jason Wang]

在 2022/3/8 下午8:34, Xuan Zhuo 写道:
> Added VIRTIO_F_RING_RESET, it came from here
> https://github.com/oasis-tcs/virtio-spec/issues/124


Nit: it's better to explain VIRTIO_F_RING_RESET a little bit here.

Other than this.

Acked-by: Jason Wang <jasowang at redhat.com>


>
> Signed-off-by: Xuan Zhuo <xuanzhuo at linux.alibaba.com>
> ---
>   include/uapi/linux/virtio_config.h | 7 ++++++-
>   1 file changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/include/uapi/linux/virtio_config.h b/include/uapi/linux/virtio_config.h
> index b5eda06f0d57..0862be802ff8 100644
> --- a/include/uapi/linux/virtio_config.h
> +++ b/include/uapi/linux/virtio_config.h
> @@ -52,7 +52,7 @@
>    * rest are per-device feature bits.
>    */
>   #define VIRTIO_TRANSPORT_F_START	28
> -#define VIRTIO_TRANSPORT_F_END		38
> +#define VIRTIO_TRANSPORT_F_END		41
>   
>   #ifndef VIRTIO_CONFIG_NO_LEGACY
>   /* Do we get callbacks when the ring is completely used, even if we've
> @@ -92,4 +92,9 @@
>    * Does the device support Single Root I/O Virtualization?
>    */
>   #define VIRTIO_F_SR_IOV			37
> +
> +/*
> + * This feature indicates that the driver can reset a queue individually.
> + */
> +#define VIRTIO_F_RING_RESET		40
>   #endif /* _UAPI_LINUX_VIRTIO_CONFIG_H */