netdev - Re: [PATCH 1/2] net: dsa: allow XAUI phy interface mode

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Date:   Wed, 13 Dec 2017 14:59:34 -0500 (EST)
From:   David Miller <davem@...emloft.net>
To:     rmk+kernel@...linux.org.uk
Cc:     andrew@...n.ch, f.fainelli@...il.com, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, mark.rutland@....com,
        netdev@...r.kernel.org, robh+dt@...nel.org, kernel@...gutronix.de,
        shawnguo@...nel.org, stefan@...er.ch,
        vivien.didelot@...oirfairelinux.com
Subject: Re: [PATCH 1/2] net: dsa: allow XAUI phy interface mode

From: Russell King <rmk+kernel@...linux.org.uk>
Date: Tue, 12 Dec 2017 09:29:46 +0000

> XGMII is a 32-bit bus plus two clock signals per direction.  XAUI is
> four serial lanes per direction.  The 88e6190 supports XAUI but not
> XGMII as it doesn't have enough pins.  The same is true of 88e6176.
> 
> Match on PHY_INTERFACE_MODE_XAUI for the XAUI port type, but keep
> accepting XGMII for backwards compatibility.
> 
> Signed-off-by: Russell King <rmk+kernel@...linux.org.uk>

Applied.