[ovs-dev] OVS + BPF, make sense?

Thomas Graf tgraf at noironetworks.com
Mon Dec 22 09:53:21 UTC 2014


Thanks a lot for sharing these minutes.

On 12/19/14 at 06:49pm, Andy Zhou wrote:
> Possible use cases of BPF in OVS Linux kernel datapath
> ===========================================
>
> [...]
>
> 4. Using BPF to implement overall OVS kernel module functionality
> 
>    Alexei likes this approach the most. The potential benefits are:

This would be my favourite as well long term assuming that the
performance benefits we hope for can be proven. A logical evolutionary
process might be 2, 3 and then go for the full coverage.

A small but: We can't just remove the existing Netlink based action
data path as non-OVS users exist which rely on it. So this would need
to exist in parallel unless we can get all users on board to transition
over to this new architecture.



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