Re: [PATCH/RFC net-next] tc: allow drivers to accept gact with PIPE when offloading

[Edward Cree <ecree.xilinx@gmail.com>]

On 28/11/2022 13:11, Marcelo Leitner wrote:
> Exactly. Then, when this patchset (or similar) come up, it won't
> update all actions with the same stats anymore. It will require a set
> of stats from hw for the gact with PIPE action here. But if drivers
> are ignoring this action, they can't have specific stats for it. Or am
> I missing something?
> 
> So it is better for the drivers to reject the whole flow instead of
> simply ignoring it, and let vswitchd probe if it should or should not
> use this action.

I agree.  Drivers should only accept a flow with a 'gact pipe' action
 if they are able to perform the stats offload it requests.
Getting userland to autodiscover whether it can make use of this is a
 SMOP, better than having it always try to use it and then sometimes
 get confused that the resulting stats are wrong or meaningless.

-ed