netdev - Re: Link modes representation in phylib

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Message-ID: <20180619152155.GC26796@lunn.ch>
Date:   Tue, 19 Jun 2018 17:21:55 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Maxime Chevallier <maxime.chevallier@...tlin.com>
Cc:     davem@...emloft.net,
        Russell King - ARM Linux <linux@...linux.org.uk>,
        Florian Fainelli <f.fainelli@...il.com>,
        netdev <netdev@...r.kernel.org>,
        Antoine Tenart <antoine.tenart@...tlin.com>,
        "thomas.petazzoni@...tlin.com" <thomas.petazzoni@...tlin.com>,
        Gregory CLEMENT <gregory.clement@...tlin.com>,
        Miquel Raynal <miquel.raynal@...tlin.com>
Subject: Re: Link modes representation in phylib

> What I propose is that we add 3 link_mode fields in phy_device, and keep
> the legacy fields for now. It would be up to the driver to fill the new
> "supported" field in config_init, kind of like what's done in the
> marvell10g driver.

Hi Maxime

You can do this conversion in the core. If features == 0, and some
bits are set in the features link_mode, do the conversion at probe
time. The same can be done for lp_advertising, when the call into the
drivers read_status() has completed.

> Would that be acceptable ?

It sounds reasonable. Lets see what the code looks like.

   Andrew