From: Andrew Lunn <andrew@lunn.ch>
Subject: Re: [RFC net-next 0/5] Support for PHY test modes
Date: Tue, 1 May 2018 21:59:56 +0200
Message-ID: <20180501195956.GC1265@lunn.ch>
References: <20180428003237.1536-1-f.fainelli@gmail.com>
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Cc: David Miller <davem@davemloft.net>, netdev@vger.kernel.org,
        rmk@armlinux.org.uk, linux-kernel@vger.kernel.org,
        cphealy@gmail.com, nikita.yoush@cogentembedded.com,
        vivien.didelot@savoirfairelinux.com, Nisar.Sayed@microchip.com,
        UNGLinuxDriver@microchip.com
To: Florian Fainelli <f.fainelli@gmail.com>
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> # echo 4 > /sys/class/net/gphy/operstate
> # ip link show gphy
> 4: gphy@eth1: <NO-CARRIER,BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500
> qdisc noqueue switchid 00000000 state TESTING mode DEFAULT group default
> qlen 1000
>     link/ether 00:10:18:de:38:1f brd ff:ff:ff:ff:ff:ff

This looks good.

I stopped using ifconfig years ago, so i personally don't care about
it. If you are using old tools, you have to expect some surprises and
missing information.

	Andrew