Re: [PATCH RFC net-next v5 10/14] virtio/vsock: add VIRTIO_VSOCK_F_DGRAM feature bit

From: Stefano Garzarella
Date: Tue Aug 01 2023 - 12:05:51 EST


On Tue, Aug 01, 2023 at 04:30:22AM +0000, Bobby Eshleman wrote:
On Thu, Jul 27, 2023 at 09:48:21AM +0200, Stefano Garzarella wrote:
On Wed, Jul 26, 2023 at 02:38:08PM -0400, Michael S. Tsirkin wrote:
> On Wed, Jul 19, 2023 at 12:50:14AM +0000, Bobby Eshleman wrote:
> > This commit adds a feature bit for virtio vsock to support datagrams.
> >
> > Signed-off-by: Jiang Wang <jiang.wang@xxxxxxxxxxxxx>
> > Signed-off-by: Bobby Eshleman <bobby.eshleman@xxxxxxxxxxxxx>
> > ---
> > include/uapi/linux/virtio_vsock.h | 1 +
> > 1 file changed, 1 insertion(+)
> >
> > diff --git a/include/uapi/linux/virtio_vsock.h b/include/uapi/linux/virtio_vsock.h
> > index 331be28b1d30..27b4b2b8bf13 100644
> > --- a/include/uapi/linux/virtio_vsock.h
> > +++ b/include/uapi/linux/virtio_vsock.h
> > @@ -40,6 +40,7 @@
> >
> > /* The feature bitmap for virtio vsock */
> > #define VIRTIO_VSOCK_F_SEQPACKET 1 /* SOCK_SEQPACKET supported */
> > +#define VIRTIO_VSOCK_F_DGRAM 3 /* SOCK_DGRAM supported */
> >
> > struct virtio_vsock_config {
> > __le64 guest_cid;
>
> pls do not add interface without first getting it accepted in the
> virtio spec.

Yep, fortunatelly this series is still RFC.
I think by now we've seen that the implementation is doable, so we
should discuss the changes to the specification ASAP. Then we can
merge the series.

@Bobby can you start the discussion about spec changes?


No problem at all. Am I right to assume that a new patch to the spec is
the standard starting point for discussion?

Yep, I think so!

Thanks,
Stefano