netdev - Re: [PATCH net-next v2 2/7] net: stmmac: Always arm TX Timer at end of transmission start

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Date:   Tue, 17 Dec 2019 23:01:11 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     Jose.Abreu@...opsys.com
Cc:     netdev@...r.kernel.org, Joao.Pinto@...opsys.com,
        jakub.kicinski@...ronome.com, peppe.cavallaro@...com,
        alexandre.torgue@...com, mcoquelin.stm32@...il.com,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next v2 2/7] net: stmmac: Always arm TX Timer at
 end of transmission start

From: Jose Abreu <Jose.Abreu@...opsys.com>
Date: Tue, 17 Dec 2019 13:46:06 +0100

> If TX Coalesce timer is enabled we should always arm it, otherwise we
> may hit the case where an interrupt is missed and the TX Queue will
> timeout.
> 
> Arming the timer does not necessarly mean it will run the tx_clean()
> because this function is wrapped around NAPI launcher.
> 
> Signed-off-by: Jose Abreu <Jose.Abreu@...opsys.com>

This is a bug fix and thus appropriate for net not net-next.