tree bc1fce9b60d284ed0706397cd6dc631a65684453
parent 5c33474d41af09f09c98f1df70f267920587bec0
author Jason Wang <jasowang@redhat.com> 1482503850 +0800
committer David S. Miller <davem@davemloft.net> 1482518935 -0500

virtio-net: forbid XDP when VIRTIO_NET_F_GUEST_UFO is support

When VIRTIO_NET_F_GUEST_UFO is negotiated, host could still send UFO
packet that exceeds a single page which could not be handled
correctly by XDP. So this patch forbids setting XDP when GUEST_UFO is
supported. While at it, forbid XDP for ECN (which comes only from GRO)
too to prevent user from misconfiguration.

Cc: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>