netdev - Re: [PATCH net-next] net: phy: introduce phydev->port

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Date:   Wed, 10 Feb 2021 02:53:30 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Michael Walle <michael@...le.cc>
Cc:     bcm-kernel-feedback-list@...adcom.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Florian Fainelli <f.fainelli@...il.com>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Subject: Re: [PATCH net-next] net: phy: introduce phydev->port

On Tue, Feb 09, 2021 at 05:38:52PM +0100, Michael Walle wrote:
> At the moment, PORT_MII is reported in the ethtool ops. This is odd
> because it is an interface between the MAC and the PHY and no external
> port. Some network card drivers will overwrite the port to twisted pair
> or fiber, though. Even worse, the MDI/MDIX setting is only used by
> ethtool if the port is twisted pair.
> 
> Set the port to PORT_TP by default because most PHY drivers are copper
> ones. If there is fibre support and it is enabled, the PHY driver will
> set it to PORT_FIBRE.
> 
> This will change reporting PORT_MII to either PORT_TP or PORT_FIBRE;
> except for the genphy fallback driver.
> 
> Suggested-by: Andrew Lunn <andrew@...n.ch>
> Signed-off-by: Michael Walle <michael@...le.cc>

Reviewed-by: Andrew Lunn <andrew@...n.ch>

    Andrew