linux-kernel - Re: [PATCH net-next 4/4] net: phy: Add generic support for 2.5GBaseT and 5GBaseT

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Date:   Tue, 12 Feb 2019 22:13:21 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Maxime Chevallier <maxime.chevallier@...tlin.com>
Cc:     davem@...emloft.net, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Florian Fainelli <f.fainelli@...il.com>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        linux-arm-kernel@...ts.infradead.org,
        Antoine Tenart <antoine.tenart@...tlin.com>,
        thomas.petazzoni@...tlin.com, gregory.clement@...tlin.com,
        miquel.raynal@...tlin.com, nadavh@...vell.com, stefanc@...vell.com,
        mw@...ihalf.com
Subject: Re: [PATCH net-next 4/4] net: phy: Add generic support for 2.5GBaseT
 and 5GBaseT

On Mon, Feb 11, 2019 at 03:25:29PM +0100, Maxime Chevallier wrote:
> The 802.3bz specification, based on previous by the NBASET alliance,
> defines the 2.5GBaseT and 5GBaseT link modes for ethernet traffic on
> cat5e, cat6 and cat7 cables.
> 
> These mode integrate with the already defined C45 MDIO PMA/PMD registers
> set that added 10G support, by defining some previously reserved bits,
> and adding a new register (2.5G/5G Extended abilities).
> 
> This commit adds the required definitions in include/uapi/linux/mdio.h
> to support these modes, and detect when a link-partner advertises them.
> 
> It also adds support for these mode in the generic C45 PHY
> infrastructure.
> 
> Signed-off-by: Maxime Chevallier <maxime.chevallier@...tlin.com>

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

    Andrew