linux-kernel - Re: [PATCH 0/3] vdpa: device feature provisioning

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Message-ID: <CACGkMEshK=GoBivM-mHbFBAtvqTQKF-WMwTKvDRxJ70WjVebdA@mail.gmail.com>
Date:   Wed, 21 Sep 2022 15:45:02 +0800
From:   Jason Wang <jasowang@...hat.com>
To:     Parav Pandit <parav@...dia.com>
Cc:     "mst@...hat.com" <mst@...hat.com>, Eli Cohen <elic@...dia.com>,
        "si-wei.liu@...cle.com" <si-wei.liu@...cle.com>,
        "wuzongyong@...ux.alibaba.com" <wuzongyong@...ux.alibaba.com>,
        "virtualization@...ts.linux-foundation.org" 
        <virtualization@...ts.linux-foundation.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "eperezma@...hat.com" <eperezma@...hat.com>,
        "lingshan.zhu@...el.com" <lingshan.zhu@...el.com>,
        "gdawar@...inx.com" <gdawar@...inx.com>,
        "lulu@...hat.com" <lulu@...hat.com>,
        "xieyongji@...edance.com" <xieyongji@...edance.com>
Subject: Re: [PATCH 0/3] vdpa: device feature provisioning

On Wed, Sep 21, 2022 at 3:17 AM Parav Pandit <parav@...dia.com> wrote:
>
> Hi Jason,
>
> > From: Jason Wang <jasowang@...hat.com>
> > Sent: Thursday, September 15, 2022 4:51 AM
> > To: mst@...hat.com; jasowang@...hat.com
> > Cc: Eli Cohen <elic@...dia.com>; si-wei.liu@...cle.com; Parav Pandit
> > <parav@...dia.com>; wuzongyong@...ux.alibaba.com;
> > virtualization@...ts.linux-foundation.org; linux-kernel@...r.kernel.org;
> > eperezma@...hat.com; lingshan.zhu@...el.com; gdawar@...inx.com;
> > lulu@...hat.com; xieyongji@...edance.com
> > Subject: [PATCH 0/3] vdpa: device feature provisioning
> >
> > Hi All:
> >
> > Virtio features are neogiated between the device and the drivers. This allows
> > the mediation layer like vDPA to hide some features from the driver to
> > faciliate the cross vendor live migration:
> >
> > vDPA on the source supports feature set X vDPA on the destination supports
> > feature set Y
> >
> > Management can simply provision the vDPA instance with features X&Y on
> > both source and destination to let the vDPA can be migrate-able between
> > the two vDPA devies with different features support.
> >
> > This series tries to allow the device features to be provisioned via netlink to
> > achieve this.
> Very useful series.
> Can you please add vdpa example command with and without -jp option in each of the commit logs?

Yes, I will do it in V2.

Thanks

>
> Thanks.
>