From patchwork Sat Oct 14 09:29:54 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christian Marangi X-Patchwork-Id: 152922 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:612c:2908:b0:403:3b70:6f57 with SMTP id ib8csp2386152vqb; Sat, 14 Oct 2023 02:31:53 -0700 (PDT) X-Google-Smtp-Source: AGHT+IGAQ532iN+atDRIoixGt12IpqPp5sVmyCE1kNPKGEQ09SwMzBKp3DhvLKTA5X4GafI7w6xQ X-Received: by 2002:a05:6a20:c18f:b0:16e:26fd:7c02 with SMTP id bg15-20020a056a20c18f00b0016e26fd7c02mr21007674pzb.2.1697275913605; Sat, 14 Oct 2023 02:31:53 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1697275913; cv=none; d=google.com; s=arc-20160816; b=C3giUiHhl57P9MpEdQ0nPeOcUUSph+Ph+hNzQBknwshzD7LIuLKiHXFbQO8PDZG69N 8xdPF22NqUXSkdWXGbTJzHvlktxJclc+Zr5c8Uj2hTt/jGXy+JqTbUUL4AqSkrUJrQCB VphfkTzxKpZfhvHr8N0evToERmqpu8lahiNDXo7Txpz3jME7sDRex4AGexEzvC9n1kaZ 1jm6qgFfypLd6wGe0MNg9fCU8lkXKpJWG4SEOxgK9rgnevknGU3y0hYrALC/oMG2cWOz EXXQ7eE/Ze/5hpGYNkgj5Wi6AORwWeZmzyLWqxO0Xuz3x8Ttwv+WkeV9HbnZGbBkLF9a Fb6A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=SSAhxNCccBDPfEaHOYwSm94ZHYVqbuNn4mUPNvHQg0g=; fh=jvZ7yAidasmFREPdFLzcn6X72yjJtrVlKHskOtM6Gso=; b=1G2XRkVSMvQWpVJn6atgP/DKeDJZKYs0S4SUr0SUrBJmRnsg2MSuuvEA0I/nxwXB78 tzwYoTPfnjICrhsJBOCibMMvmdySFVz0QVkAQnfdEEDhXuVvhXOul4EQZkF8iAdarVnA 0xZvGK8ndy4su7gknQfDvcpJTEzB/wsO7tZvKvuLF4GtDjrrZdrZEkTPECZfeqYwlaqS EUIMgGsI5iaWXZqLxk/odDOEB4OQjvNo4nrz/Xykeswkle/2nH7IiBW3rg4FPFGOTAM6 R0m80E4FcK09TRciXNz3sQU2H7V0SOiZIKrbg+/Ep4WNmrOAk4NI6Q7YrWpED6JD71Q/ Ixgg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gmail.com header.s=20230601 header.b=jNgf+cZ2; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.37 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: from snail.vger.email (snail.vger.email. [23.128.96.37]) by mx.google.com with ESMTPS id g6-20020a63dd46000000b005852a35afeesi6269123pgj.186.2023.10.14.02.31.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 14 Oct 2023 02:31:53 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.37 as permitted sender) client-ip=23.128.96.37; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20230601 header.b=jNgf+cZ2; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.37 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by snail.vger.email (Postfix) with ESMTP id D094E80486A5; Sat, 14 Oct 2023 02:31:03 -0700 (PDT) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.10 at snail.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233060AbjJNJaq (ORCPT + 20 others); Sat, 14 Oct 2023 05:30:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58342 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233072AbjJNJag (ORCPT ); Sat, 14 Oct 2023 05:30:36 -0400 Received: from mail-wr1-x42f.google.com (mail-wr1-x42f.google.com [IPv6:2a00:1450:4864:20::42f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 04D20CF; Sat, 14 Oct 2023 02:30:33 -0700 (PDT) Received: by mail-wr1-x42f.google.com with SMTP id ffacd0b85a97d-32d569e73acso2623937f8f.1; Sat, 14 Oct 2023 02:30:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1697275831; x=1697880631; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=SSAhxNCccBDPfEaHOYwSm94ZHYVqbuNn4mUPNvHQg0g=; b=jNgf+cZ2b3PzrOJdmUcMRYCiTaEQ4UvvU/wqx+0p7vn/FhGwBwK/pLpgY9B+r7aoOl r1RLgxN8tO7AdBzeCJKcoYzsTE7aUy+ITPB5E5wE47zMw4rP1dVEfnDFo4A7xnVRQ+L2 SgUMm0k6ktXLC1NZGhu8G9TtyAim+LOfOxaf1FzyIao4W4RcabqQ3Pm7Pdetymdy1yog q6cAhf92iKnAcG8IZzYTZ3ZzQ9QGxfLY/46aG6HKeBlzRzWKPsBeQVjBsi2m60A5QW+K bOj0CFFIRi9UffUU1uVcF1Uy1un8+Re5s2Ni3nhwEzrDEq56Z/euz+8KQjcZBn+/5PQg jiKw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1697275831; x=1697880631; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=SSAhxNCccBDPfEaHOYwSm94ZHYVqbuNn4mUPNvHQg0g=; b=dH8jvzEmKrQw6d08FwRQOBgtlRtLPxslcP9zhJyL8uSEDj/Q56G+PgtHGrI0ticUTq Hu3vjK58ldqSo47/YqRbRMOfzCg7WQvKiwe3RzCw+znePvPJ+RivO3BDwcgK7p4AcwXE i05e7D4LcWFApc3EV6ZtrcIw/1WuY7Cq5yWU2RpUtmqKtJA0JBO/J1O1T/sIjgsfil1O n5/9oaST82OkCvGbR5wgMB/pBeSCtaEnRCVIlGi6Jgdq4RIQdXP58Kpa910Bicw6Dyd1 lXw+O0Wxgdft+x9G6wYyJf5pWS8VV7G1/X7OTuNa+wtlrb2923doWTVJk+tSYTHpSLZs DxZQ== X-Gm-Message-State: AOJu0Yx7g9YCQhW4wzCDcZAFCIQo2qbmlTW5eGp7zSQrPXOFPWlNHH0S nA5eeq6ZKPWp39Esyzow9yw= X-Received: by 2002:adf:f084:0:b0:314:a3f:9c08 with SMTP id n4-20020adff084000000b003140a3f9c08mr24141801wro.39.1697275831283; Sat, 14 Oct 2023 02:30:31 -0700 (PDT) Received: from localhost.localdomain (93-34-89-13.ip49.fastwebnet.it. [93.34.89.13]) by smtp.googlemail.com with ESMTPSA id u12-20020adff88c000000b0032d9a1f2ec3sm3691564wrp.27.2023.10.14.02.30.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 14 Oct 2023 02:30:31 -0700 (PDT) From: Christian Marangi To: Raju Rangoju , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Alexandre Torgue , Jose Abreu , Maxime Coquelin , Ping-Ke Shih , Kalle Valo , Simon Horman , Daniel Borkmann , Jiri Pirko , Hangbin Liu , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-wireless@vger.kernel.org Cc: Christian Marangi Subject: [net-next PATCH v3 4/4] net: stmmac: increase TX coalesce timer to 5ms Date: Sat, 14 Oct 2023 11:29:54 +0200 Message-Id: <20231014092954.1850-5-ansuelsmth@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20231014092954.1850-1-ansuelsmth@gmail.com> References: <20231014092954.1850-1-ansuelsmth@gmail.com> MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (snail.vger.email [0.0.0.0]); Sat, 14 Oct 2023 02:31:03 -0700 (PDT) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1779722788216163095 X-GMAIL-MSGID: 1779722788216163095 Commit 8fce33317023 ("net: stmmac: Rework coalesce timer and fix multi-queue races") decreased the TX coalesce timer from 40ms to 1ms. This caused some performance regression on some target (regression was reported at least on ipq806x) in the order of 600mbps dropping from gigabit handling to only 200mbps. The problem was identified in the TX timer getting armed too much time. While this was fixed and improved in another commit, performance can be improved even further by increasing the timer delay a bit moving from 1ms to 5ms. The value is a good balance between battery saving by prevending too much interrupt to be generated and permitting good performance for internet oriented devices. Signed-off-by: Christian Marangi --- drivers/net/ethernet/stmicro/stmmac/common.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/common.h b/drivers/net/ethernet/stmicro/stmmac/common.h index 1e996c29043d..e3f650e88f82 100644 --- a/drivers/net/ethernet/stmicro/stmmac/common.h +++ b/drivers/net/ethernet/stmicro/stmmac/common.h @@ -293,7 +293,7 @@ struct stmmac_safety_stats { #define MIN_DMA_RIWT 0x10 #define DEF_DMA_RIWT 0xa0 /* Tx coalesce parameters */ -#define STMMAC_COAL_TX_TIMER 1000 +#define STMMAC_COAL_TX_TIMER 5000 #define STMMAC_MAX_COAL_TX_TICK 100000 #define STMMAC_TX_MAX_FRAMES 256 #define STMMAC_TX_FRAMES 25