From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6615FC3F2C6 for ; Sun, 1 Mar 2020 00:25:32 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 3FFED20828 for ; Sun, 1 Mar 2020 00:25:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="sdPBSurU" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3FFED20828 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=sntech.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=IZ4+rBSoUM1mRZsg+T2ndAvKWQd+LT0l0+TxEjiFGS4=; b=sdPBSurUASVp+6 gohUCsYz8ArGXR0kvRWr3dIq7nU/Wdb3T2FtTzbAwF7t3S8U0okEB0TRJ9KMskbuAyjrxtWh7ScNj M4xrlbQ09MeKFIY2IiV8sBJRzDHN95DrsjVlfnO3uK35FgZmfF/4opzOcE0mVCyc6wqOv5Ugf5LoY GL9kabPvMuATtAQuuFKUXzxXwd1esVH5pMyMc8BcJqWrkaprd7R4AEvROSuILqQTjK2BZ2nTCWLmh 7O28LyMVi3quGKadF+5Qb/Mt+omUb787s+dvLh7sXPrm3Q6980oCZm50C3oIJRJwRsERtNuXqRp/V A1Hr28LmTBPcqLR9QdmA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1j8CQF-0004Vs-Ps; Sun, 01 Mar 2020 00:25:31 +0000 Received: from gloria.sntech.de ([185.11.138.130]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1j8CQC-0004VH-5t; Sun, 01 Mar 2020 00:25:29 +0000 Received: from p508fcd9d.dip0.t-ipconnect.de ([80.143.205.157] helo=phil.localnet) by gloria.sntech.de with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1j8CQ1-0004xy-6B; Sun, 01 Mar 2020 01:25:17 +0100 From: Heiko Stuebner To: Carlos de Paula Subject: Re: [PATCH] arm64: dts: rockchip: Add txpbl node for RK3399/RK3328 Date: Sun, 01 Mar 2020 01:25:16 +0100 Message-ID: <6132615.msM8OCcsVu@phil> In-Reply-To: <20200218221040.10955-1-me@carlosedp.com> References: <20200218221040.10955-1-me@carlosedp.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200229_162528_369284_4ABC103E X-CRM114-Status: GOOD ( 13.30 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: jose.abreu@synopsys.com, Mark Rutland , Jonas Karlman , Katsuhiro Suzuki , Daniel Lezcano , linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org, Rob Herring , linux-arm-kernel@lists.infradead.org, Peter Geis , Enric Balletbo i Serra , Johan Jonker , Philipp Tomsich , Robin Murphy , papadakospan@gmail.com, Christoph Muellner Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Am Dienstag, 18. Februar 2020, 23:10:37 CET schrieb Carlos de Paula: > Some rockchip SoCs like the RK3399 and RK3328 exhibit an issue > where tx checksumming does not work with packets larger than 1498. > > The default Programmable Buffer Length for TX in these GMAC's is > not suitable for MTUs higher than 1498. The workaround is to disable > TX offloading with 'ethtool -K eth0 tx off rx off' causing performance > impacts as it disables hardware checksumming. > > This patch sets snps,txpbl to 0x4 which is a safe number tested ok for > the most popular MTU value of 1500. > > For reference, see https://lkml.org/lkml/2019/4/1/1382. > > Signed-off-by: Carlos de Paula applied for 5.7 Thanks Heiko _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel