Re: [PATCH net-next v7 2/2] net: dsa: mv88e6xxx: add support for credit based shaper

[Jakub Kicinski]

On Sat, 13 Jun 2026 13:37:08 +1000 Luke Howard wrote:
> On egress, one can use the switch chips’ AVB support, but this limits
> the number of TCs to three (corresponding to SR class A, B, and
> ‘legacy’ traffic). I have a submitted MQPRIO offload patch that does
> this. This matches how MQPRIO and CBS are used on end station NICs,
> but is not flexible enough to support an arbitrary number of TCs.
> Because of this, offloading PRIO may be cleaner.

Yes, it's been a while since I worked on qdisc offload, but the NIC /
host-centric offloads operate quite differently than the switch-centric
ones. Offloading MQPRIO to a switch is likely to lead to technical debt.