Re: [RFC PATCH v4 2/4] dpll: Add DPLL framework base functions

Tue, Dec 06, 2022 at 01:19:33AM CET, kuba@kernel.org wrote:

On Mon, 5 Dec 2022 11:32:04 +0100 Jiri Pirko wrote:

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I believe we should do it only the other way around. Assign
dpll_pin pointer to struct net_device and expose this over new attr
IFLA_DPLL_PIN over RT netlink.  

The ID table is global, what's the relationship between DPLLs
and net namespaces? We tie DPLLs to a devlink instance which
has a namespace? We pretend namespaces don't exist? :S  

Well, if would be odd to put dpll itself into a namespace. It might not
have anything to do with networking, for example in case of ptp_ocp.
What would mean for a dpll to be in a net namespace?

Yeah, that's a slightly tricky one. We'd probably need some form 
of second order association. Easiest if we link it to a devlink
instance, I reckon. The OCP clock card does not have netdevs so we
can't follow the namespace of netdevs (which would be the second
option).

Why do we need this association at all?