From: Ivan Khoronzhuk <ivan.khoronzhuk@xxxxxxxxxx> Date: Fri, 12 Oct 2018 19:06:29 +0300 > In dual-emac mode the cpsw driver sends directed packets, that means > that packets go to the directed port, but an ALE lookup is performed > to determine untagged egress only. It means that on tx side no need > to add port bit for ALE mcast entry mask, and basically ALE entry > for port identification is needed only on rx side. > > So, add only host port in dual_emac mode as used directed > transmission, and no need in one more port. For single port boards > and switch mode all ports used, as usual, so no changes for them. > Also it simplifies farther changes. > > In other words, mcast entries for dual-emac should behave exactly > like unicast. It also can help avoid leaking packets between ports > with same vlan on h/w level if ports could became members of same vid. > > So now, for instance, if mcast address 33:33:00:00:00:01 is added then > entries in ALE table: > > vid = 1, addr = 33:33:00:00:00:01, port_mask = 0x1 > vid = 2, addr = 33:33:00:00:00:01, port_mask = 0x1 > > Instead of: > vid = 1, addr = 33:33:00:00:00:01, port_mask = 0x3 > vid = 2, addr = 33:33:00:00:00:01, port_mask = 0x5 > > With the same considerations, set only host port for unregistered > mcast for dual-emac mode in case of IFF_ALLMULTI is set, exactly like > it's done in cpsw_ale_set_allmulti(). > > Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@xxxxxxxxxx> Applied.
