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Date: Mon, 18 Jan 2016 16:15:00 +0100
From: Andrew Lunn <andrew@lunn.ch>
To: Shaohui Xie <shaohui.xie@nxp.com>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>,
 Florian Fainelli <f.fainelli@gmail.com>,
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 Shaohui Xie <Shaohui.Xie@freescale.com>
Subject: Re: [PATCH 1/3][v2] net: phy: introduce 1000BASE-KX and 10GBASE-KR
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> [S.H] the fsl backplane, e.g. 10GBASE-KR, needs software to handle link training,
> It's to train link partner, and trained by link partner parallel.
> 
> But if media type is not copper, e.g. optical module, we won't need this.

So what we actually need to know is copper vs fibre?

   Andrew