netdev - Re: [PATCH] net: ethernet: mvneta: add support for 2.5G DRSGMII mode

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Message-ID: <20170123181836.GO10895@lunn.ch>
Date:   Mon, 23 Jan 2017 19:18:36 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Jan Luebbe <jlu@...gutronix.de>
Cc:     netdev@...r.kernel.org, devicetree@...r.kernel.org,
        davem@...emloft.net, Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
        Florian Fainelli <f.fainelli@...il.com>
Subject: Re: [PATCH] net: ethernet: mvneta: add support for 2.5G DRSGMII mode

On Mon, Jan 23, 2017 at 03:22:06PM +0100, Jan Luebbe wrote:
> The Marvell MVNETA Ethernet controller supports a 2.5 Gbps SGMII mode
> called DRSGMII.
> 
> This patch adds a corresponding phy-mode string 'drsgmii' and parses it
> from DT. The MVNETA then configures the SERDES protocol value
> accordingly.

Hi Jan

So this sets the PHY to 2.5Gbps. What about the MAC? Currently,
mvneta_adjust_link() knows about SPEED_1000 and SPEED_100. Does it now
need to know about SPEED_2500? mvneta_ethtool_set_link_ksettings()?

Thanks
	Andrew