linux-kernel - Re: [PATCH v1 0/4] vduse: Reconnection support in vduse

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Message-ID: <CACGkMEvikhJ2DA5NX4msmhWz6m47v-YfYwaA2K+A-qtX9xj30A@mail.gmail.com>
Date:   Wed, 18 Oct 2023 13:09:47 +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 v1 0/4] vduse: Reconnection support in vduse

On Tue, Oct 17, 2023 at 10:52 AM Cindy Lu <lulu@...hat.com> wrote:
>
> On Tue, Oct 17, 2023 at 10:44 AM Jason Wang <jasowang@...hat.com> wrote:
> >
> > On Wed, Oct 11, 2023 at 2:42 PM Cindy Lu <lulu@...hat.com> wrote:
> > >
> > > Here is the reconnect support in vduse,
> > >
> > > The kernel will allocate pages for reconnection
> > > userspace needs to use ioctl VDUSE_GET_RECONNECT_INFO to
> > > get the mmap related infomation and then map these pages
> > > to userspace.
> > > The kernel and userspace will use these pages to sync
> > > the reconnect information
> > >
> > > Tested in vduse + dpdk test-pmd
> >
> > I would like to see the DPDK part as a reference. Would you mind
> > giving me a pointer?
> >
> > Thanks
> >
> sure, Will send the dpdk patch soon
> thanks
> cindy

Btw, I would expect to add the protocol into the VDUSE doc to describe
the exact step for doing reconnection.

Thanks

> > >
> > > Cindy Lu (4):
> > >   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
> > >
> > >  drivers/vdpa/vdpa_user/vduse_dev.c | 175 +++++++++++++++++++++++++++++
> > >  include/uapi/linux/vduse.h         |  43 +++++++
> > >  2 files changed, 218 insertions(+)
> > >
> > > --
> > > 2.34.3
> > >
> >
>