netdev - Re: [RFC net-next 0/5] Support for PHY test modes

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Message-ID: <20180430232448.GB25602@lunn.ch>
Date:   Tue, 1 May 2018 01:24:48 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Florian Fainelli <f.fainelli@...il.com>
Cc:     David Miller <davem@...emloft.net>, netdev@...r.kernel.org,
        rmk@...linux.org.uk, linux-kernel@...r.kernel.org,
        cphealy@...il.com, nikita.yoush@...entembedded.com,
        vivien.didelot@...oirfairelinux.com, Nisar.Sayed@...rochip.com,
        UNGLinuxDriver@...rochip.com
Subject: Re: [RFC net-next 0/5] Support for PHY test modes

> Turning these tests on will typically result in the link partner
> dropping the link with us, and the interface will be non-functional as
> far as the data path is concerned (similar to an isolation mode). This
> might warrant properly reporting that to user-space through e.g: a
> private IFF_* value maybe?

Hi Florian

I think a IFF_* value would be a good idea. We want to give the user
some indicate why they don't have working networking. ip link show
showing PHY-TEST-MODE would help.

	Andrew