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Date: Mon, 4 Mar 2024 18:57:34 -0800
From: Jakub Kicinski <kuba@kernel.org>
To: Kory Maincent <kory.maincent@bootlin.com>
Cc: Florian Fainelli <florian.fainelli@broadcom.com>, Broadcom internal
 kernel review list <bcm-kernel-feedback-list@broadcom.com>, Andrew Lunn
 <andrew@lunn.ch>, Heiner Kallweit <hkallweit1@gmail.com>, Russell King
 <linux@armlinux.org.uk>, "David S. Miller" <davem@davemloft.net>, Eric
 Dumazet <edumazet@google.com>, Paolo Abeni <pabeni@redhat.com>, Richard
 Cochran <richardcochran@gmail.com>, Radu Pirea
 <radu-nicolae.pirea@oss.nxp.com>, Jay Vosburgh <j.vosburgh@gmail.com>, Andy
 Gospodarek <andy@greyhouse.net>, Nicolas Ferre
 <nicolas.ferre@microchip.com>, Claudiu Beznea <claudiu.beznea@tuxon.dev>,
 Willem de Bruijn <willemdebruijn.kernel@gmail.com>, Jonathan Corbet
 <corbet@lwn.net>, Horatiu Vultur <horatiu.vultur@microchip.com>,
 UNGLinuxDriver@microchip.com, Simon Horman <horms@kernel.org>, Vladimir
 Oltean <vladimir.oltean@nxp.com>, Thomas Petazzoni
 <thomas.petazzoni@bootlin.com>, netdev@vger.kernel.org,
 linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, Maxime Chevallier
 <maxime.chevallier@bootlin.com>, Rahul Rameshbabu <rrameshbabu@nvidia.com>
Subject: Re: [PATCH net-next v9 08/13] ptp: Add phc source and helpers to
 register specific PTP clock or get information
Message-ID: <20240304185734.5f1a476c@kernel.org>
In-Reply-To: <20240226-feature_ptp_netnext-v9-8-455611549f21@bootlin.com>
References: <20240226-feature_ptp_netnext-v9-0-455611549f21@bootlin.com>
	<20240226-feature_ptp_netnext-v9-8-455611549f21@bootlin.com>
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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?