linux-kernel - RE: [PATCH 1/2] stmmac: introduce flag to dynamically disable TX offload for rockchip devices

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Message-Id: <1554306954.1328.1@gmail.com>
Date:   Wed, 03 Apr 2019 18:55:54 +0300
From:   "Leonidas P. Papadakos" <papadakospan@...il.com>
To:     Jose Abreu <jose.abreu@...opsys.com>
Cc:     Robin Murphy <robin.murphy@....com>,
        Philipp Tomsich <philipp.tomsich@...obroma-systems.com>,
        Heiko Stübner <heiko@...ech.de>,
        Christoph Müllner 
        <christoph.muellner@...obroma-systems.com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        netdev@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Klaus Goger <klaus.goger@...obroma-systems.com>
Subject: RE: [PATCH 1/2] stmmac: introduce flag to dynamically disable TX
 offload for rockchip devices


> If snps,no-pbl-x8 does indeed have a performace hit, should the 
> workaround be to
> a) turn tx checksumming off or
> b) snps,no-pbl-x8 set?
> 
> I'll test to see the difference

Update: It really seems like snps,no-pbl-x8 is the better option.
So I say, replace snps,force_thresh_dma_mode with it.