linux-kernel - Re: [PATCH net-next 07/13] net: phy: Represent PHY-less SFP modules with phy

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Message-ID: <2b7b7c5b-53a4-4a1a-a98d-eac6190b0b55@bootlin.com>
Date: Fri, 30 Jan 2026 14:32:03 +0100
From: Maxime Chevallier <maxime.chevallier@...tlin.com>
To: Romain Gantois <romain.gantois@...tlin.com>, davem@...emloft.net,
 Andrew Lunn <andrew@...n.ch>, Jakub Kicinski <kuba@...nel.org>,
 Eric Dumazet <edumazet@...gle.com>, Paolo Abeni <pabeni@...hat.com>,
 Russell King <linux@...linux.org.uk>, Heiner Kallweit <hkallweit1@...il.com>
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
 thomas.petazzoni@...tlin.com, Christophe Leroy
 <christophe.leroy@...roup.eu>, Herve Codina <herve.codina@...tlin.com>,
 Florian Fainelli <f.fainelli@...il.com>,
 Vladimir Oltean <vladimir.oltean@....com>,
 Köry Maincent <kory.maincent@...tlin.com>,
 Marek Behún <kabel@...nel.org>,
 Oleksij Rempel <o.rempel@...gutronix.de>,
 Nicolò Veronese <nicveronese@...il.com>,
 Simon Horman <horms@...nel.org>, mwojtas@...omium.org,
 Daniel Golle <daniel@...rotopia.org>,
 Dimitri Fedrau <dimitri.fedrau@...bherr.com>
Subject: Re: [PATCH net-next 07/13] net: phy: Represent PHY-less SFP modules
 with phy_port



On 28/01/2026 16:54, Romain Gantois wrote:
> On Tuesday, 27 January 2026 14:41:55 CET Maxime Chevallier wrote:
>> Now that th SFP bus infrastructure notifies when PHY-less modules are
> 
> There's a typo here.

Ack

> 
>> connected, we can create a phy_port to represent it. Instead of letting
>> the SFP subsystem handle that, the Bus' upstream is in charge of
>> maintaining that phy_port and register it to the topology, as the
>> upstream (in this case a phy device) is directly interacting with the
>> underlying net_device.
>>
>> Add a phy_caps helper alongside to get the achievable modes on this
> 
> Alongside what?

Alongside this patch ?

I'll reword.

Maxime

> 
> Thanks,
>