mlxsw: spectrum_span: Allow bridge for gretap mirror
authorPetr Machata <petrm@mellanox.com>
Sun, 29 Apr 2018 07:56:13 +0000 (10:56 +0300)
committerDavid S. Miller <davem@davemloft.net>
Mon, 30 Apr 2018 16:42:40 +0000 (12:42 -0400)
commit946a11e7408e52a6d9e5f3187c32b6c2a5f88835
tree7c5dfec560ba135a3ef5f6a9efaa8fb369c82df9
parentc520bc6986472621469f9dc1cec1a5dbbb4769bf
mlxsw: spectrum_span: Allow bridge for gretap mirror

When handling mirroring to a gretap or ip6gretap netdevice in mlxsw, the
underlay address (i.e. the remote address of the tunnel) may be routed
to a bridge.

In that case, look up the resolved neighbor Ethernet address in that
bridge's FDB. Then configure the offload to direct the mirrored traffic
to that port, possibly with tagging.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/mellanox/mlxsw/spectrum_span.c
drivers/net/ethernet/mellanox/mlxsw/spectrum_span.h