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Date:   Wed, 22 Nov 2023 14:11:24 +0800
From:   Jason Wang <jasowang@...hat.com>
To:     Cindy Lu <lulu@...hat.com>
Cc:     mst@...hat.com, xieyongji@...edance.com,
        linux-kernel@...r.kernel.org, maxime.coquelin@...hat.com
Subject: Re: [PATCH v2 0/5] vduse: Add support for reconnection

On Tue, Nov 21, 2023 at 3:30 PM Cindy Lu <lulu@...hat.com> wrote:
>
> Here is the reconnect support in vduse,
>
> kernel will allocted pages for reconnection
> userspace need use ioctl VDUSE_GET_RECONNECT_INFO to
> get the mmap related information and then mapping these pages
> to userspace.
> kernel and userspace will use these pages to sync
> the reconnect information
> kernel will use VDUSE_VQ_GET_INFO to sync the information
> userspace App  will call during the "user_app_dev_start()".

It would be better to describe the uAPI instead of duplicating the
logic of the codes.

>
> change in V2
> 1. Address the comments from v1

It's better to be more verbose here, people can easily forget the
comments since V1.

Thanks

> 2. Add the document for reconnect process
>
> Cindy Lu (5):
>   vduse: Add function to get/free the pages for reconnection
>   vduse: Add file operation for mmap
>   vduse: Add new ioctl VDUSE_GET_RECONNECT_INFO
>   vduse: update the vq_info in ioctl
>   Documentation: Add reconnect process for VDUSE
>
>  Documentation/userspace-api/vduse.rst |  29 ++++
>  drivers/vdpa/vdpa_user/vduse_dev.c    | 198 +++++++++++++++++++++++++-
>  include/uapi/linux/vduse.h            |  50 +++++++
>  3 files changed, 276 insertions(+), 1 deletion(-)
>
> --
> 2.34.3
>

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