diff options
| author | Ido Schimmel <idosch@mellanox.com> | 2020-05-29 21:36:39 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-06-01 11:49:23 -0700 |
| commit | 9eefeabed6f831018c15bd7e17d34967ee34d9dd (patch) | |
| tree | 2e4fff25c312dd222498fe460c7561f7d223d355 /Documentation | |
| parent | 85176f19f5ff579c8c1676b4c170a6535b782584 (diff) | |
devlink: Add 'mirror' trap action
The action is used by control traps such as IGMP query. The packet is
flooded by the device, but also trapped to the CPU in order for the
software bridge to mark the receiving port as a multicast router port.
Such packets are marked with 'skb->offload_fwd_mark = 1' in order to
prevent the software bridge from flooding them again.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/networking/devlink/devlink-trap.rst | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/networking/devlink/devlink-trap.rst b/Documentation/networking/devlink/devlink-trap.rst index 4ca241e70064..5b97327caefc 100644 --- a/Documentation/networking/devlink/devlink-trap.rst +++ b/Documentation/networking/devlink/devlink-trap.rst @@ -108,6 +108,8 @@ The ``devlink-trap`` mechanism supports the following packet trap actions: * ``trap``: The sole copy of the packet is sent to the CPU. * ``drop``: The packet is dropped by the underlying device and a copy is not sent to the CPU. + * ``mirror``: The packet is forwarded by the underlying device and a copy is + sent to the CPU. Generic Packet Traps ==================== |