Stephen Hemminger wrote: > Or Gerlitz <ogerl...@voltaire.com> wrote: >> Looking in macvlan_set_multicast_list() it acts in a similar manner to >> macvlan_set_mac_address() in the sense that it calls dev_mc_sync(). I assume >> what's left is to add macvlan_hash_xxx multicast logic to map/unmap >> multicast groups to what macvlan devices want to receive them and this way >> the flooding can be removed, correct? > The device can just flood all multicast packets, since the filtering is done > on the receive path anyway. for each multicast packet, macvlan_broadcast is invoked and calls skb_clone/ netif_rx for each device, now a smart scheme that takes into account (hash) the multicast list of the different macvlan devices would save the skb_clone call, isn't it?
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