Re: [PATCH net-next v3 4/4] net: lan966x: Add ptp trap rules

From: Vladimir Oltean
Date: Fri Dec 09 2022 - 09:47:37 EST


On Fri, Dec 09, 2022 at 04:43:28PM +0200, Vladimir Oltean wrote:
> On Fri, Dec 09, 2022 at 03:20:58PM +0100, Horatiu Vultur wrote:
> > On ocelot, the vcap is enabled at port initialization, while on other
> > platforms(lan966x and sparx5) you have the option to enable or disable.
>
> Even if that wasn't the case, I'd still consider enabling/disabling VCAP
> lookups privately in the ocelot driver when there are non-tc users of
> traps, instead of requiring users to do anything with tc. It's simply
> too unfriendly for somebody who just wants PTP. You can use devlink
> traps to show which non-tc traps are active.

To put it differently. Why do you even bother to make the driver
auto-install PTP traps, and not let the user do that? It's the same
argument as asking the user enable the VCAP lookups.