On 09/20/2015 12:18 PM, Nieścierowicz Adam wrote: > Hi Matthew, > in near future i want to do exactly the same, if you make progress with > SR-IOV+Bridge+OpenStack please leave here some advice. >
I wrote a shell script which polls (~15s) each bridge /sys/class/net/brq*, and for each bridge figures out the uplink (not named /sys/class/net/brq*/brif/tap*). Then, for each port /sys/class/net/<bridge>/brif/tap*, determine the VM mac address and add an fdb entry if it doesn't already exist. In my environment, it seems the VM mac is the tap mac s/^fe:/fa:/. This is a little messier than the non-promsicuous bridge option, but I wasn't able to get that working on CentOS7/kernel-ml-4.2/iproute-3.10. But either way, this won't work well if you're trying to do nested virt, which thankfully I don't need at this time. If you're interested I can attach the script and systemd unit. Otherwise, I'll be looking to try to get this handled properly by neutron-linuxbridge-agent.
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