netdev - Re: [PATCH net-next 4/5] net: phy: add Lynx PCS MDIO module

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Date:   Fri, 19 Jun 2020 00:03:31 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Ioana Ciornei <ioana.ciornei@....com>
Cc:     Russell King - ARM Linux admin <linux@...linux.org.uk>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "davem@...emloft.net" <davem@...emloft.net>,
        Vladimir Oltean <vladimir.oltean@....com>,
        Claudiu Manoil <claudiu.manoil@....com>,
        Alexandru Marginean <alexandru.marginean@....com>,
        "michael@...le.cc" <michael@...le.cc>,
        "f.fainelli@...il.com" <f.fainelli@...il.com>
Subject: Re: [PATCH net-next 4/5] net: phy: add Lynx PCS MDIO module

> Are there really instances where the ethernet driver has to manage multiple
> different types of PCSs? I am not sure this type of snippet of code is really
> going to occur.

Hi Ioana

The Marvell mv88e6390 family has three PCS's, one for SGMII/1000BaseX,
a 10Gbase-X4/X2 and a 10GBAse-R. So this sort of code could appear.

  Andrew