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SubjectRE: [RFC net-next] net: phy: Add basic support for Synopsys XPCS using a PHY driver
Date
From: Andrew Lunn <andrew@lunn.ch>
Date: Jan/13/2020, 13:38:45 (UTC+00:00)

> On Mon, Jan 13, 2020 at 02:11:08PM +0100, Jose Abreu wrote:
> > Adds the basic support for XPCS including support for USXGMII.
>
> Hi Jose
>
> Please could you describe the 'big picture'. What comes after the
> XPCS? An SFP? A copper PHY? How in Linux do you combine this PHY and
> whatever comes next using PHYLINK?
>
> Or do only support backplane with this, and the next thing in the line
> is the peers XPCS?

My current setup is this:

Host PC x86 -> PCI -> XGMAC -> XPCS -> SERDES 10G-BASE-R -> QSFP+

The only piece that needs configuration besides XGMAC is the XPCS hereby
I "called" it a PHY ... Anyway, this is an RFC because I'm not entirely
sure about the approach. Hmm ?

---
Thanks,
Jose Miguel Abreu

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