netdev - Re: [PATCH 5/6] net: phy: add XAUI and 10GBASE-KR PHY connection types

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Message-ID: <187fd723-55b0-3a94-1ad0-62b696eb4a90@gmail.com>
Date:   Mon, 5 Jun 2017 09:24:35 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Russell King <rmk+kernel@...linux.org.uk>,
        Andrew Lunn <andrew@...n.ch>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>, netdev@...r.kernel.org,
        devicetree@...r.kernel.org
Subject: Re: [PATCH 5/6] net: phy: add XAUI and 10GBASE-KR PHY connection
 types

On 06/05/2017 04:23 AM, Russell King wrote:
> XAUI allows XGMII to reach an extended distance by using a XGXS layer at
> each end of the MAC to PHY link, operating over four Serdes lanes.
> 
> 10GBASE-KR is a single lane Serdes backplane ethernet connection method
> with autonegotiation on the link.  Some PHYs use this to connect to the
> ethernet interface at 10G speeds, switching to other connection types
> when utilising slower speeds.
> 
> 10GBASE-KR is also used for XFI and SFI to connect to XFP and SFP fiber
> modules.
> 
> Signed-off-by: Russell King <rmk+kernel@...linux.org.uk>

Reviewed-by: Florian Fainelli <f.fainelli@...il.com>
-- 
Florian