linux-kernel - Re: [RFC net-next] net: phy: Add basic support for Synopsys XPCS using a PHY driver

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Message-ID: <CA+h21hpsauapCGEHqVqHpEU2K-VsAh3vKBRJ_N8iq2i35SedOw@mail.gmail.com>
Date:   Mon, 13 Jan 2020 16:55:51 +0200
From:   Vladimir Oltean <olteanv@...il.com>
To:     Jose Abreu <Jose.Abreu@...opsys.com>
Cc:     Russell King - ARM Linux admin <linux@...linux.org.uk>,
        Andrew Lunn <andrew@...n.ch>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Joao Pinto <Joao.Pinto@...opsys.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Heiner Kallweit <hkallweit1@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [RFC net-next] net: phy: Add basic support for Synopsys XPCS
 using a PHY driver

Hi Jose,

On Mon, 13 Jan 2020 at 16:28, Jose Abreu <Jose.Abreu@...opsys.com> wrote:
>
> This uses Clause 73 for Autoneg. I can add that into PHYLINK core if you
> agree.
>

Clauses 72 and 73 describe some PMD link training procedure too, as
part of auto-negotiation for 10GBase-KR. Does the XGPCS do any of
that? Is this series sufficient for link training to work when in the
10GBase-KR copper backplane link mode?

> ---
> Thanks,
> Jose Miguel Abreu

Regards,
-Vladimir