From: Ido Schimmel <ido...@mellanox.com> Date: Sun, 29 Apr 2018 10:56:07 +0300
> Petr says: > > When mirroring to a gretap or ip6gretap netdevice, the route that > directs the encapsulated packets can reference a bridge. In that case, > in the software model, the packet is switched. > > Thus when offloading mirroring like that, take into consideration FDB, > STP, PVID configured at the bridge, and whether that VLAN ID should be > tagged on egress. > > Patch #1 introduces functions to get bridge PVID, VLAN flags and to look > up an FDB entry. > > Patches #2 and #3 refactor some existing code and introduce a new > accessor function. > > With patches #4 and #5 mlxsw calls mlxsw_sp_span_respin() on switchdev > events as well. There is no impact yet, because bridge as an underlay > device is still not allowed. > > That is implemented in patch #6, which uses the new interfaces to figure > out on which one port the mirroring should be configured, and whether > the mirrored packets should be VLAN-tagged and how. > > Changes from v2 to v3: > > - Rename the suite of bridge accessor function to br_vlan_get_pvid(), > br_vlan_get_info() and br_fdb_find_port(). The _get bit is to avoid > clashing with an existing static function. > > Changes from v1 to v2: > > - Change the suite of bridge accessor functions to br_vlan_pvid_rtnl(), > br_vlan_info_rtnl(), br_fdb_find_port_rtnl(). Series applied, thank you.
