-----Original Message-----
From: Andrew Lunn [mailto:andrew-g2DYL2Zd6BY@public.gmane.org]
Sent: Monday, January 18, 2016 11:15 PM
To: Shaohui Xie
Cc: Sebastian Hesselbarth; Florian Fainelli; shh.xie-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org;
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org; netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org; linuxppc-
dev-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org; davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org; Shaohui Xie
Subject: Re: [PATCH 1/3][v2] net: phy: introduce 1000BASE-KX and 10GBASE-KR

quoted

[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.

quoted

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?

Copper is not enough to indicate backplane, since backplane is always copper,
 but copper is not always backplane.

Thank you!
Shaohui
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