netdev - Re: [PATCH net-next v2 08/14] net: phylink: support Clause 45 PHYs on SFP+ modules

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Message-ID: <20191210170753.GN27714@lunn.ch>
Date:   Tue, 10 Dec 2019 18:07:53 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Russell King <rmk+kernel@...linux.org.uk>
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        Heiner Kallweit <hkallweit1@...il.com>,
        "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org
Subject: Re: [PATCH net-next v2 08/14] net: phylink: support Clause 45 PHYs
 on SFP+ modules

On Mon, Dec 09, 2019 at 03:19:06PM +0000, Russell King wrote:
> Some SFP+ modules have Clause 45 PHYs embedded on them, which need a
> little more handling in order to ensure that they are correctly setup,
> as they switch the PHY link mode according to the negotiated speed.
> 
> With Clause 22 PHYs, we assumed that they would operate in SGMII mode,
> but this assumption is now false.  Adapt phylink to support Clause 45
> PHYs on SFP+ modules.
> 
> Signed-off-by: Russell King <rmk+kernel@...linux.org.uk>

Reviewed-by: Andrew Lunn <andrew@...n.ch>

    Andrew