[PATCH v7 01/26] virtio_pci: struct virtio_pci_common_cfg add queue_notify_data

[Jason Wang]

在 2022/3/8 下午8:34, Xuan Zhuo 写道:
> Add queue_notify_data in struct virtio_pci_common_cfg, which comes from
> here https://github.com/oasis-tcs/virtio-spec/issues/89
>
> For not breaks uABI, add a new struct virtio_pci_common_cfg_notify.
>
> Since I want to add queue_reset after queue_notify_data, I submitted
> this patch first.
>
> Signed-off-by: Xuan Zhuo <xuanzhuo at linux.alibaba.com>


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


> ---
>   include/uapi/linux/virtio_pci.h | 7 +++++++
>   1 file changed, 7 insertions(+)
>
> diff --git a/include/uapi/linux/virtio_pci.h b/include/uapi/linux/virtio_pci.h
> index 3a86f36d7e3d..22bec9bd0dfc 100644
> --- a/include/uapi/linux/virtio_pci.h
> +++ b/include/uapi/linux/virtio_pci.h
> @@ -166,6 +166,13 @@ struct virtio_pci_common_cfg {
>   	__le32 queue_used_hi;		/* read-write */
>   };
>   
> +struct virtio_pci_common_cfg_notify {
> +	struct virtio_pci_common_cfg cfg;
> +
> +	__le16 queue_notify_data;	/* read-write */
> +	__le16 padding;
> +};
> +
>   /* Fields in VIRTIO_PCI_CAP_PCI_CFG: */
>   struct virtio_pci_cfg_cap {
>   	struct virtio_pci_cap cap;