Allocate the buffer and completion ring structures. Do not populate the
rings yet. That will happen in the respective rx and tx datapath
follow-on patches
Signed-off-by: NBailey Forrest <bcf@google.com>
Reviewed-by: NWillem de Bruijn <willemb@google.com>
Reviewed-by: NCatherine Sullivan <csully@google.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>