[PATCH net-next 02/10] net: phy: phylink: allow 10GKR interface to use in-band negotiation

Antoine Tenart antoine.tenart at bootlin.com
Mon Mar 19 06:10:09 PDT 2018


Hi Andrew,

On Mon, Mar 19, 2018 at 01:59:53PM +0100, Andrew Lunn wrote:
> 
> If they don't have PHYs, how are the connected to the outside world?

On 7k/8k you have the following scheme for 10G only interfaces:

   MAC -- Comphy -- PHY -- SFP cage -- ...

Or

   MAC -- Comphy -- SFP cage -- ...

The comphy provides serdes lanes, and can be configured in various
modes (SGMII, 2500SGMII, 10GKR...).

Antoine

-- 
Antoine Ténart, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com



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