Xuan Zhuo
2022-Aug-30 02:31 UTC
[PATCH v3 1/2] virtio-net: introduce and use helper function for guest gso support checks
On Tue, 30 Aug 2022 05:26:33 +0300, Gavin Li <gavinl at nvidia.com> wrote:> Probe routine is already several hundred lines. > Use helper function for guest gso support check. > > Signed-off-by: Gavin Li <gavinl at nvidia.com> > Reviewed-by: Gavi Teitz <gavi at nvidia.com> > Reviewed-by: Parav Pandit <parav at nvidia.com>Reviewed-by: Xuan Zhuo <xuanzhuo at linux.alibaba.com>> --- > changelog: > v1->v2 > - Add new patch > --- > drivers/net/virtio_net.c | 13 +++++++++---- > 1 file changed, 9 insertions(+), 4 deletions(-) > > diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c > index 9cce7dec7366..e1904877d461 100644 > --- a/drivers/net/virtio_net.c > +++ b/drivers/net/virtio_net.c > @@ -3682,6 +3682,14 @@ static int virtnet_validate(struct virtio_device *vdev) > return 0; > } > > +static bool virtnet_check_guest_gso(const struct virtnet_info *vi) > +{ > + return (virtio_has_feature(vi->vdev, VIRTIO_NET_F_GUEST_TSO4) || > + virtio_has_feature(vi->vdev, VIRTIO_NET_F_GUEST_TSO6) || > + virtio_has_feature(vi->vdev, VIRTIO_NET_F_GUEST_ECN) || > + virtio_has_feature(vi->vdev, VIRTIO_NET_F_GUEST_UFO)); > +} > + > static int virtnet_probe(struct virtio_device *vdev) > { > int i, err = -ENOMEM; > @@ -3777,10 +3785,7 @@ static int virtnet_probe(struct virtio_device *vdev) > spin_lock_init(&vi->refill_lock); > > /* If we can receive ANY GSO packets, we must allocate large ones. */ > - if (virtio_has_feature(vdev, VIRTIO_NET_F_GUEST_TSO4) || > - virtio_has_feature(vdev, VIRTIO_NET_F_GUEST_TSO6) || > - virtio_has_feature(vdev, VIRTIO_NET_F_GUEST_ECN) || > - virtio_has_feature(vdev, VIRTIO_NET_F_GUEST_UFO)) > + if (virtnet_check_guest_gso(vi)) > vi->big_packets = true; > > if (virtio_has_feature(vdev, VIRTIO_NET_F_MRG_RXBUF)) > -- > 2.31.1 >