Re: [PATCH v9 27/32] virtio: add helper virtio_find_vqs_ctx_size()

Jason Wang
2022-04-12T08:26:00Z

在 2022/4/6 上午11:43, Xuan Zhuo 写道:
> Introduce helper virtio_find_vqs_ctx_size() to call find_vqs and specify
> the maximum size of each vq ring.
>
> Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>

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

> ---
> include/linux/virtio_config.h | 12 ++++++++++++
> 1 file changed, 12 insertions(+)
>
> diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h
> index 0f7def7ddfd2..22e29c926946 100644
> --- a/include/linux/virtio_config.h
> +++ b/include/linux/virtio_config.h
> @@ -235,6 +235,18 @@ int virtio_find_vqs_ctx(struct virtio_device *vdev, unsigned nvqs,
> ctx, desc);
> }
>
> +static inline
> +int virtio_find_vqs_ctx_size(struct virtio_device *vdev, u32 nvqs,
> + struct virtqueue *vqs[],
> + vq_callback_t *callbacks[],
> + const char * const names[],
> + u32 sizes[],
> + const bool *ctx, struct irq_affinity *desc)
> +{
> + return vdev->config->find_vqs(vdev, nvqs, vqs, callbacks, names, sizes,
> + ctx, desc);
> +}
> +
> /**
> * virtio_device_ready - enable vq use in probe function
> * @vdev: the device