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

From: Andrew Lunn
Date: Mon Apr 30 2018 - 19:24:58 EST

> 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.