netdev - Re: Synopsys Ethernet QoS

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Date:   Thu, 15 Dec 2016 12:09:17 +0100
From:   Pavel Machek <pavel@....cz>
To:     Joao Pinto <Joao.Pinto@...opsys.com>
Cc:     Niklas Cassel <niklas.cassel@...s.com>,
        Giuseppe CAVALLARO <peppe.cavallaro@...com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        David Miller <davem@...emloft.net>, larper@...s.com,
        rabinv@...s.com, netdev <netdev@...r.kernel.org>,
        CARLOS.PALMINHA@...opsys.com, Jie.Deng1@...opsys.com,
        Stephen Warren <swarren@...dia.com>
Subject: Re: Synopsys Ethernet QoS

Hi!

> I know that this is completely of topic, but I am facing a dificulty with
> stmmac. I have interrupts, mac well configured rx packets being received
> successfully, but TX is not working, resulting in Tx errors = Total TX packets.
> I have made a lot of debug and my conclusions is that by some reason when using
> stmmac after starting tx dma, the hw state machine enters a deadend state
> resulting in those errors. Anyone faced this trouble?

Actually, I see you have address @synopsys.com, would you have
documentation for the chip?

I'm trying to understand stmmac_tx_clean() and docs would help...

Thanks,
								Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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