Re: [PATCH RFC 1/2] virtio: introduce packed ring defines

[Jens Freimann]

On Tue, Feb 27, 2018 at 09:54:58AM +0100, Jens Freimann wrote:
> On Fri, Feb 23, 2018 at 07:18:00PM +0800, Tiwei Bie wrote:
> > Signed-off-by: Tiwei Bie <tiwei.bie@xxxxxxxxx>
> > ---
> > include/uapi/linux/virtio_config.h | 18 +++++++++-
> > include/uapi/linux/virtio_ring.h   | 68 ++++++++++++++++++++++++++++++++++++++
> > 2 files changed, 85 insertions(+), 1 deletion(-)
> >
> > diff --git a/include/uapi/linux/virtio_config.h b/include/uapi/linux/virtio_config.h
> > index 308e2096291f..e3d077ef5207 100644
> > --- a/include/uapi/linux/virtio_config.h
> > +++ b/include/uapi/linux/virtio_config.h
> > @@ -49,7 +49,7 @@
> > * transport being used (eg. virtio_ring), the rest are per-device feature
> > * bits. */
> > #define VIRTIO_TRANSPORT_F_START	28
> > -#define VIRTIO_TRANSPORT_F_END		34
> > +#define VIRTIO_TRANSPORT_F_END		37
> >
> > #ifndef VIRTIO_CONFIG_NO_LEGACY
> > /* Do we get callbacks when the ring is completely used, even if we've
> > @@ -71,4 +71,20 @@
> > * this is for compatibility with legacy systems.
> > */
> > #define VIRTIO_F_IOMMU_PLATFORM		33
> > +
> > +/* This feature indicates support for the packed virtqueue layout. */
> > +#define VIRTIO_F_RING_PACKED		34
>
> Spec says VIRTIO_F_PACKED_RING not RING_PACKED

Ignore this. Seems to have changed.

regards,
Jens