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

Jason Wang
2022-03-09T06:14:55Z

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@redhat.com>

>
> Signed-off-by: Xuan Zhuo <xuanzhuo@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 */