commit 509fda105ba8f9a1a5c6f8b79e4c7fc50b35c1e3
author Jesper Dangaard Brouer <brouer@redhat.com> Mon Jun 25 16:27:48 2018 +0200
committer Daniel Borkmann <daniel@iogearbox.net> Thu Jun 28 23:50:20 2018 +0200
tree c71cfab13dad3b8bab03a29004d286dc514daf07
parent 0d25c43ab988766ad52ff2930af3bf47d92c20ac

samples/bpf: xdp_rxq_info action XDP_TX must adjust MAC-addrs

XDP_TX requires also changing the MAC-addrs, else some hardware
may drop the TX packet before reaching the wire.  This was
observed with driver mlx5.

If xdp_rxq_info select --action XDP_TX the swapmac functionality
is activated.  It is also possible to manually enable via cmdline
option --swapmac.  This is practical if wanting to measure the
overhead of writing/updating payload for other action types.

Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk>
Acked-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>