Update relative record value for xdp_frame as basis
for multi-buffer xdp transmission.
Signed-off-by: NHeng Qi <hengqi@linux.alibaba.com>
Reviewed-by: NXuan Zhuo <xuanzhuo@linux.alibaba.com>
Acked-by: NJason Wang <jasowang@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>