linux-kernel - Re: [PATCH net-next v1 7/7] net: fec: add support for PHYs with SmartEEE support

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Date:   Thu, 16 Feb 2023 13:49:47 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Oleksij Rempel <o.rempel@...gutronix.de>
Cc:     Larysa Zaremba <larysa.zaremba@...el.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, Wei Fang <wei.fang@....com>,
        Heiner Kallweit <hkallweit1@...il.com>, kernel@...gutronix.de,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        Shenwei Wang <shenwei.wang@....com>,
        Clark Wang <xiaoning.wang@....com>,
        NXP Linux Team <linux-imx@....com>
Subject: Re: [PATCH net-next v1 7/7] net: fec: add support for PHYs with
 SmartEEE support

> I would prefer to not touch phy_init_eee(). At least not in this patch
> set. With this function we have following situation:

We have a complete mess :-(

I spent yesterday re-writing the MAC driver side of EEE. Most get it
completely wrong, as you point out. So i changed the API a bit, making
it more like other negotiated things, so i hope developers will get it
correct in the future.  I will post an RFC/RFT series soon.

> Hm.. I need to admit, EEE should not be advertised by default. Only
> if MAC driver calls something like phy_support_eee(), we should start doing it.

This i've not looked at yet. But i agree.

     Andrew