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Date:   Thu, 14 Sep 2023 14:47:44 +0200
From:   Andrew Lunn <andrew@lunn.ch>
To:     Christophe Leroy <christophe.leroy@csgroup.eu>
Cc:     Maxime Chevallier <maxime.chevallier@bootlin.com>,
        "davem@davemloft.net" <davem@davemloft.net>,
        "netdev@vger.kernel.org" <netdev@vger.kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Jakub Kicinski <kuba@kernel.org>,
        Eric Dumazet <edumazet@google.com>,
        Paolo Abeni <pabeni@redhat.com>,
        Florian Fainelli <f.fainelli@gmail.com>,
        Heiner Kallweit <hkallweit1@gmail.com>,
        Russell King <linux@armlinux.org.uk>,
        Vladimir Oltean <vladimir.oltean@nxp.com>,
        Oleksij Rempel <linux@rempel-privat.de>,
        =?iso-8859-1?Q?Nicol=F2?= Veronese <nicveronese@gmail.com>,
        "thomas.petazzoni@bootlin.com" <thomas.petazzoni@bootlin.com>
Subject: Re: [RFC PATCH net-next 0/7] net: phy: introduce phy numbering
Message-ID: <60703503-e592-4467-a942-74400583369d@lunn.ch>
References: <20230907092407.647139-1-maxime.chevallier@bootlin.com>
 <e7b49a60-4422-4f3f-3e77-d924f967e939@csgroup.eu>
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> FWIW when thinking about multiple PHY to a single MAC, what comes to my 
> mind is the SIS 900 board, and its driver net/ethernet/sis/sis900.c
> 
> It has a function sis900_default_phy() that loops over all phys to find 
> one with up-link then to put all but that one in ISOLATE mode. Then when 
> the link goes down it loops again to find another up-link.
> 
> I guess your series would also help in that case, wouldn't it ?

Yes, it would. However, that driver would need its PHY handling
re-written because it is using the old MII code, not phylib.

	Andrew