linux-kernel - Re: [PATCH net-next v2 3/7] net: phy: marvell10g: Use 2500BASEX when using 2.5GBASET

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Message-ID: <20190223153849.GH10693@lunn.ch>
Date:   Sat, 23 Feb 2019 16:38:49 +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 v2 3/7] net: phy: marvell10g: Use 2500BASEX when
 using 2.5GBASET

On Sat, Feb 23, 2019 at 12:37:40AM +0100, Maxime Chevallier wrote:
> The Marvell Alaska family of PHYs supports 2.5GBaseT and 5GBaseT modes,
> as defined in the 802.3bz specification.
> 
> Upon establishing a 2.5GBASET link, the PHY will reconfigure it's MII
> interface to 2500BASEX.
> 
> At 5G, the PHY will reconfigure it's interface to 5GBASE-R, but this
> mode isn't supported by any MAC for now.
> 
> This was tested with :
>  - The 88X3310, which is on the MacchiatoBin
>  - The 88E2010, an Alaska PHY that has no fiber interfaces, and is
>    limited to 5G maximum speed.
> 
> Signed-off-by: Maxime Chevallier <maxime.chevallier@...tlin.com>

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

    Andrew