From: Edward Cree <ec...@solarflare.com> Date: Tue, 4 Apr 2017 17:02:49 +0100
> If the mc_list is longer than 256 addresses, we enter mc_promisc mode. > If we're in mc_promisc mode and the firmware doesn't support cascaded > multicast, normally we also insert our mc_list, to prevent stealing by > another VI. However, if the mc_list was too long, this isn't really > helpful - the MC groups that didn't fit in the list can still get > stolen, and having only some of them stealable will probably cause > more confusing behaviour than having them all stealable. Since > inserting 256 multicast filters takes a long time and can lead to MCDI > state machine timeouts, just skip the mc_list insert in this overflow > condition. > > Signed-off-by: Edward Cree <ec...@solarflare.com> Applied, thanks.
