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Date: Wed, 3 Apr 2019 07:55:25 +0000 From: Jose Abreu <jose.abreu@...opsys.com> To: "Leonidas P. Papadakos" <papadakospan@...il.com>, Robin Murphy <robin.murphy@....com> CC: Jose Abreu <jose.abreu@...opsys.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" <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 From: Leonidas P. Papadakos <papadakospan@...il.com> Date: Tue, Apr 02, 2019 at 23:48:16 > I can confirm that snps,no-pbl-x8, currently set by uboot for the fdt > basically fixes the tx-checksumming issue. > I get 700~800 Mbps myself but that might come down to the setup. > You could say it affects performance slightly, as I saw in a previous > email. > > Without the setting The rate consistently drops to 0. > ethtool reports tx-checksumming is on in both cases > > Pretty cool! > Does that give you guys an idea on how to tackle it "officially"? > > > Thank you all for testing ! It's been on my todo list to cook up a patch that limits PBL according to FIFO size but I didn't manage to have the time yet so for now it would be better if you fix it by submitting the DT bindings changes. Thanks, Jose Miguel Abreu
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