netdev - Re: [PATCH 1/6] net: phy: add interface modes for XFI, SFI

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Message-ID: <20191220092900.GB24174@lunn.ch>
Date:   Fri, 20 Dec 2019 10:29:00 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Russell King - ARM Linux admin <linux@...linux.org.uk>
Cc:     "Madalin Bucur (OSS)" <madalin.bucur@....nxp.com>,
        "antoine.tenart@...e-electrons.com" 
        <antoine.tenart@...e-electrons.com>,
        "jaz@...ihalf.com" <jaz@...ihalf.com>,
        "baruch@...s.co.il" <baruch@...s.co.il>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "f.fainelli@...il.com" <f.fainelli@...il.com>,
        "hkallweit1@...il.com" <hkallweit1@...il.com>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
Subject: Re: [PATCH 1/6] net: phy: add interface modes for XFI, SFI

> How does this help us when we can't simply change the existing usage?
> We can update the DT but we can't free up the usage of "10gbase-kr".

Agreed. Code needs to keep on interpreting "10gbase-kr" as any 10G
link. If we ever have a true 10gbase-kr, 802.3ap, one meter of copper
and two connectors, we are going to have to add a new mode to
represent true 10gbase-kr.

	Andrew