Re: net: dsa: mv88e6xxx architecture

Luke Howard
2024-12-21T22:15:51Z

> Doesn't FDB/MDB imply you have a bridge? What about an isolated port
> which is not a member of a bridge, there is only local traffic?

I don’t believe local traffic is an issue (if it were, I imagine one could use cgroups to control which processes could send frames of a particular priority). (Kieran, feel free to correct me.)

What I’ve done in the current patch (behind a Kconfig option) is to assume that static FDB/MDB entries on MQPRIO ports are for AVB alone. But this may be incompatible with IGMP snooping, if that also results in the creation of static MDB entires.

Adding MQPRIO/CBS support without this admission control is definitely an option and perhaps a good first step, the proviso being that when bridging, SRP would not provide a guaranteed bandwidth reservation.