netdev - Re: No traffic with Marvell switch and latest linux-next

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Message-ID: <c7050314-8af4-b65f-778d-92b9d4a7cc27@gmail.com>
Date:   Sun, 17 Feb 2019 18:06:03 +0100
From:   Heiner Kallweit <hkallweit1@...il.com>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     Russell King - ARM Linux admin <linux@...linux.org.uk>,
        Florian Fainelli <f.fainelli@...il.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: No traffic with Marvell switch and latest linux-next

On 17.02.2019 17:57, Andrew Lunn wrote:
>> There haven't been that many changes to mv88e8xxx since 5.0-rc6.
>> I reverted 7c0db24cc431 ("dsa: mv88e6xxx: Ensure all pending interrupts
>> are handled prior to exit") who looked like a candidate and bingo:
>> network is working again. Obviously something is wrong with this patch.
> 
> O.K. I tested it on an edge interrupt system, but not a level
> interrupt. I wounder if it is related to that somehow? DTU should be
> using level interrupts.
> 
Sorry, I may have been too fast with this statement. With this patch
reverted it worked, but now I have a build with this patch still included,
and it works too. Need to dig deeper ..

>        Andrew
> 

Heiner