netdev - Re: Realtek NIC uses over 1 Watt with no traffic

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Message-ID: <20181120203758.GF2649@lunn.ch>
Date:   Tue, 20 Nov 2018 21:37:58 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Paul Menzel <pmenzel@...gen.mpg.de>
Cc:     Realtek linux nic maintainers <nic_swsd@...ltek.com>,
        "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Heiner Kallweit <hkallweit1@...il.com>
Subject: Re: Realtek NIC uses over 1 Watt with no traffic

> >This sounds like Energy Efficient Ethernet, EEE, is not enabled.
> 
> No, idea if the router from my provider supports that.

It is pretty standard these days. But it requires both local and
remove MAC and PHY support it.

> >What does ethtool --show-eee ethX say?
> 
>     $ sudo ethtool --show-eee enp3s0f1
>     Cannot get EEE settings: Operation not supported

It would be nice to support this. Maybe Heiner can put it onto his
TODO list.

     Andrew