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Date:   Thu, 28 May 2020 20:43:12 +0200
From:   Thomas Bogendoerfer <>
To:     Russell King - ARM Linux admin <>
Cc:     "David S. Miller" <>,
        Jakub Kicinski <>,,
Subject: Re: [PATCH net] net: mvpp2: Enable autoneg bypass for
 1000BaseX/2500BaseX ports

On Thu, 28 May 2020 15:48:05 +0100
Russell King - ARM Linux admin <> wrote:

> On Thu, May 28, 2020 at 04:33:35PM +0200, Thomas Bogendoerfer wrote:
> > below is the dts part for the two network interfaces. The switch to
> > the outside has two ports, which correlate to the two internal ports.
> > And the switch propagates the link state of the external ports to
> > the internal ports.
> Okay, so this DTS hasn't been reviewed...

that's from our partner, I'm just using it. Stripping it down isn't
the point for my now.

> This isn't correct - you are requesting that in-band status is used
> (i.o.w. the in-band control word, see commit 4cba5c210365), but your
> bug report wants to enable AN bypass because there is no in-band
> control word.  This seems to be rather contradictory.
> May I suggest you use a fixed-link here, which will not have any

afaik fixed-link will always be up, and we want to have the link state
from the switch external ports.

> inband status, as there is no in-band control word being sent by
> the switch?  That is also the conventional way of handling switch
> links.

again, we want to propagte the external link state inside to all
the internal nodes. So this will not work anymore with fixed-link.


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