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From: Andrew Lunn <andrew@lunn.ch>
To: Russell King <rmk+kernel@armlinux.org.uk>
Cc: Florian Fainelli <f.fainelli@gmail.com>,
	Heiner Kallweit <hkallweit1@gmail.com>,
	Martin Rowe <martin.p.rowe@gmail.com>,
	"David S. Miller" <davem@davemloft.net>,
	devicetree@vger.kernel.org,
	Gregory Clement <gregory.clement@bootlin.com>,
	Jakub Kicinski <kuba@kernel.org>,
	Jason Cooper <jason@lakedaemon.net>,
	linux-arm-kernel@lists.infradead.org, netdev@vger.kernel.org,
	Rob Herring <robh+dt@kernel.org>,
	Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>,
	Vivien Didelot <vivien.didelot@gmail.com>
Subject: Re: [PATCH net] arm64: dts: clearfog-gt-8k: fix switch link configuration
Date: Sun, 19 Jul 2020 17:27:23 +0200	[thread overview]
Message-ID: <20200719152723.GG1383417@lunn.ch> (raw)
In-Reply-To: <E1jx73g-0006mp-UI@rmk-PC.armlinux.org.uk>

On Sun, Jul 19, 2020 at 12:00:40PM +0100, Russell King wrote:
> The commit below caused a regression for clearfog-gt-8k, where the link
> between the switch and the host does not come up.
> 
> Investigation revealed two issues:
> - MV88E6xxx DSA no longer allows an in-band link to come up as the link
>   is programmed to be forced down. Commit "net: dsa: mv88e6xxx: fix
>   in-band AN link establishment" addresses this.
> 
> - The dts configured dissimilar link modes at each end of the host to
>   switch link; the host was configured using a fixed link (so has no
>   in-band status) and the switch was configured to expect in-band
>   status.
> 
> With both issues fixed, the regression is resolved.
> 
> Fixes: 34b5e6a33c1a ("net: dsa: mv88e6xxx: Configure MAC when using fixed link")
> Reported-by: Martin Rowe <martin.p.rowe@gmail.com>
> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>

Reviewed-by: Andrew Lunn <andrew@lunn.ch>

    Andrew

  reply	other threads:[~2020-07-19 15:27 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-19 11:00 [PATCH net] arm64: dts: clearfog-gt-8k: fix switch link configuration Russell King
2020-07-19 15:27 ` Andrew Lunn [this message]
2020-07-20  1:11 ` David Miller

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