> ----------------------------------------------------------------------
> On Wed, Dec 13, 2023 at 04:27:40PM +0000, Srujana Challa wrote:
> > Hi Michael,
> >
> > While verifying virtio frontend drivers of guest OS on qemu with
> > vhost-vdpa backend, we came across feature bits VIRTIO_F_IN_ORDER and
> > VIRTIO_F_NOTIFICATION_DATA, which are introduced in virtio 1.1 spec,
> > are not yet enabled in qemu. These feature flags are very much useful
> > for achieving better virtio-net performance and most of the latest
> hardware VDPA devices supports these feature flags as per of virtio spec.
>
> Could you share more about which device do you mean? Does Marvell ship
> or intends to ship one?
>
We are planning to ship virtio compliant devices (Marvell CN103/106 DPUs).
> > Could you let us know if there are any plans, to add support for these
> > features in upcoming qemu releases.
> > I guess there was some discussion on VIRTIO_F_IN_ORDER feature bit
> > long ago,
> > https://urldefense.proofpoint.com/v2/url?u=https-
> 3A__patchew.org_QEMU_
> > 1533833677-2D27512-2D1-2Dgit-2Dsend-2Demail-2Di.maximets-
> 40samsung.com
> >
> _&d=DwIBAg&c=nKjWec2b6R0mOyPaz7xtfQ&r=Fj4OoD5hcKFpANhTWdwQzj
> T1Jpf7veC5
> > 263T47JVpnc&m=f_dkNKw4UhQulkhjHzd-
> 2YuAvT5n_l_7yuu2r6wSNY2cRHCHnkEM1w2m
> > BEX6Y_yv&s=E3PwNom0AdGnh6dp0WsFPANXX5qH3gAcUYucDyZ6_7Q&e=
> > Seems like that discussion has not reached any conclusion or further work.
> >
> > Thanks,
> > Srujana.
>
> Yes that patch got comments and these were not addressed.
> Feel free to address them so this can proceed.
>
We are planning to address the concerns discussed in that mail chain.
> --
> MST
