[dpdk-dev] [PATCH v5 02/11] net/virtio: add virtio 1.1 defines

Tiwei Bie tiwei.bie at intel.com
Mon Sep 10 08:07:38 CEST 2018


On Mon, Sep 10, 2018 at 05:22:43AM +0000, Gavin Hu (Arm Technology China) wrote:
> The following 1.1 new defines should be added in this patch or the parent patch.
> VIRTIO_F_IO_BARRIER
> VIRTIO_F_SR_IOV

I don't think we should introduce these defines in this patch
or this series. This series should focus on packed ring. And
the title of this patch should be something about packed ring
instead of virtio 1.1.

Thanks

> 
> > -----Original Message-----
> > From: dev <dev-bounces at dpdk.org> On Behalf Of Jens Freimann
> > Sent: Friday, September 7, 2018 2:20 AM
> > To: dev at dpdk.org
> > Cc: tiwei.bie at intel.com; maxime.coquelin at redhat.com
> > Subject: [dpdk-dev] [PATCH v5 02/11] net/virtio: add virtio 1.1 defines
> >
> > Signed-off-by: Jens Freimann <jfreimann at redhat.com>
> > ---
> >  drivers/net/virtio/virtio_ring.h | 4 ++++
> >  1 file changed, 4 insertions(+)
> >
> > diff --git a/drivers/net/virtio/virtio_ring.h b/drivers/net/virtio/virtio_ring.h
> > index cea4d441e..e2c597434 100644
> > --- a/drivers/net/virtio/virtio_ring.h
> > +++ b/drivers/net/virtio/virtio_ring.h
> > @@ -15,7 +15,11 @@
> >  #define VRING_DESC_F_WRITE      2
> >  /* This means the buffer contains a list of buffer descriptors. */
> >  #define VRING_DESC_F_INDIRECT   4
> > +/* This flag means the descriptor was made available by the driver */
> >
> > +#define VRING_DESC_F_AVAIL(b)   ((uint16_t)(b) << 7)
> > +/* This flag means the descriptor was used by the device */
> > +#define VRING_DESC_F_USED(b)    ((uint16_t)(b) << 15)
> >  /* The Host uses this in used->flags to advise the Guest: don't kick me
> >   * when you add a buffer.  It's unreliable, so it's simply an
> >   * optimization.  Guest will still kick if it's out of buffers. */
> > --
> > 2.17.1
> 
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