Re: [RFC 1/4] vduse: Add the struct to save the vq reconnect info

[Maxime Coquelin]

Hello Cindy,

On 6/28/23 08:59, Cindy Lu wrote:
> From: Your Name <you@xxxxxxxxxxx>
>
> this struct is to save the reconnect info struct, in this
> struct saved the page info that alloc to save the
> reconnect info
>
> Signed-off-by: Cindy Lu <lulu@xxxxxxxxxx>
> ---
>   drivers/vdpa/vdpa_user/vduse_dev.c | 7 +++++++
>   1 file changed, 7 insertions(+)
>
> diff --git a/drivers/vdpa/vdpa_user/vduse_dev.c b/drivers/vdpa/vdpa_user/vduse_dev.c
> index 26b7e29cb900..f845dc46b1db 100644
> --- a/drivers/vdpa/vdpa_user/vduse_dev.c
> +++ b/drivers/vdpa/vdpa_user/vduse_dev.c
> @@ -72,6 +72,12 @@ struct vduse_umem {
>   	struct page **pages;
>   	struct mm_struct *mm;
>   };
> +struct vdpa_reconnect_info {
> +	u32 index;
> +	phys_addr_t addr;
> +	unsigned long vaddr;
> +	phys_addr_t size;
> +};
>   
>   struct vduse_dev {
>   	struct vduse_vdpa *vdev;
> @@ -106,6 +112,7 @@ struct vduse_dev {
>   	u32 vq_align;
>   	struct vduse_umem *umem;
>   	struct mutex mem_lock;
> +	struct vdpa_reconnect_info reconnect_info[64];

Why 64?
Shouldn't it be part of struct vduse_virtqueue instead?

>   };
>   
>   struct vduse_dev_msg {