Subject: Re: [PATCH net-next v9 08/13] ptp: Add phc source and helpers to register specific PTP clock or get information

From: Jakub Kicinski <[email-masked]>
Date: Mon, 4 Mar 2024 18:57:34 -0800

On Mon, 26 Feb 2024 14:39:59 +0100 Kory Maincent wrote:
> Prepare for future hardware timestamp selection by adding source and
> corresponding pointers to ptp_clock structure. Additionally, introduce
> helpers for registering specific phydev or netdev PTP clocks, retrieving
> PTP clock information such as hwtstamp source or phydev/netdev pointers,
> and obtaining the ptp_clock structure from the phc index.

Can we assume there's one PHC per netdev?
We both store the netdev/phydev info in the ptp clock
and ptp clock in the netdev. Is there a reason for that?