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=-5.1 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 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 17FF9C00A89 for ; Thu, 5 Nov 2020 07:02:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9149C2080D for ; Thu, 5 Nov 2020 07:01:59 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="mGMRHmoa" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727923AbgKEHB6 (ORCPT ); Thu, 5 Nov 2020 02:01:58 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59244 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725294AbgKEHB6 (ORCPT ); Thu, 5 Nov 2020 02:01:58 -0500 Received: from mail-ed1-x52b.google.com (mail-ed1-x52b.google.com [IPv6:2a00:1450:4864:20::52b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C6DEBC0613CF; Wed, 4 Nov 2020 23:01:57 -0800 (PST) Received: by mail-ed1-x52b.google.com with SMTP id w1so382718edv.11; Wed, 04 Nov 2020 23:01:57 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to:content-language:content-transfer-encoding; bh=j0cItyzXnN05PEymUiVPpxa/gRPBRWPOMzuhzGbrfhs=; b=mGMRHmoakWbpA8XNBnhpRjgaRsK+Cypk5WrDGfifG4aBbuHcSaKJKDSLIUkT4VlkOO f2KaBrW097DjB9qDZ0qD7Vob1ElCRyHyUBdsrqt9lTEBvMw6FHGKB4jUkFNiTSsVRS21 6PmJ8lbrjlnAQpiwNiU/JW9Gh7g2NuU4pq+TD/uSzW8Si17RuiqdZuqBEIOYpm+nNLhj xuFoWGiMWRL0Xxvui2Q0t0VoMAGJHuiBCkzlj6w76tp05kEhIVH5lvKgjAWMif++Hqhw 0Q7PDgZHqW39Etu6DY8UPniSHdRnE5dMA5tBvvSBHBtFFayaV7tEKqW4VhdHi8i/iokX WJZw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=j0cItyzXnN05PEymUiVPpxa/gRPBRWPOMzuhzGbrfhs=; b=brn3utoRVgzmYh7Jpfn60Dm8QjFHQwHYN0XWzlASPqGvFLrD6dMxNb5QvIdBXLS4wR l3OnEIfYBgrHS3hDUmAIaQJpGNjuci9kM9zpTxFqWuOrnQYWbzqOHgK7yKCGZIvoF8zW gmqlKMt0ZF5BYzXxyC6FZhbcuju4F4S6awb9GuwbKoj6Mb/1G7iRaNiMxAScfA7JBcYI RGhYlcjYfnZzsQ6I7F3UP9SU3QG7Gozk7Eo5q0h2BiBsr39XKtg0xDHUyTEnXTRuyZLU 0SF2E38IHUYhSc8Nfyt0PTVm6hE+mofkG9GcjjjAWOF51/E0NRkSJzeItHMFw9q4ycxE ZYIQ== X-Gm-Message-State: AOAM530venIQoxH/YO5yzhQIR8UIkSN1+jbU2YbbT/a+ywWEJ06HKHbY FPw2/QMU7daaTR4vgwTAmrxEu90gu525Bg== X-Google-Smtp-Source: ABdhPJyQUE3RG6WaUUqXf8jbzaWEha3q0KZsE7n8WJ3SFoeXOLGOk6hNri8lt/3zVMmXBsu1w3Sd9w== X-Received: by 2002:a50:e789:: with SMTP id b9mr1153052edn.272.1604559715778; Wed, 04 Nov 2020 23:01:55 -0800 (PST) Received: from ?IPv6:2003:ea:8f23:2800:59d0:7417:1e79:f522? (p200300ea8f23280059d074171e79f522.dip0.t-ipconnect.de. [2003:ea:8f23:2800:59d0:7417:1e79:f522]) by smtp.googlemail.com with ESMTPSA id a17sm330462eda.45.2020.11.04.23.01.55 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 04 Nov 2020 23:01:55 -0800 (PST) Subject: Re: Very slow realtek 8169 ethernet performance, but only one interface, on ThinkPad T14. To: Qu Wenruo , Linux Kernel Mailing List , netdev@vger.kernel.org References: <57f16fe7-2052-72cc-6628-bbb04f146ce0@gmx.com> From: Heiner Kallweit Message-ID: <7ee6a86c-5aca-3931-73cc-2ab72d8dd8a7@gmail.com> Date: Thu, 5 Nov 2020 08:01:49 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.4.0 MIME-Version: 1.0 In-Reply-To: <57f16fe7-2052-72cc-6628-bbb04f146ce0@gmx.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 05.11.2020 03:48, Qu Wenruo wrote: > Hi, > > Not sure if this is a regression or not, but just find out that after upgrading to v5.9 kernel, one of my ethernet port on my ThinkPad T14 (ryzen version) becomes very slow. > > Only *2~3* Mbps. > > The laptop has two ethernet interfaces, one needs a passive adapter, the other one is a standard RJ45. > > The offending one is the one which needs the adapter (eth0). > While the RJ45 one is completely fine. > > 02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0e) > 05:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15) > > The 02:00.0 one is the affected one. > > The related dmesgs are: > [ 38.110293] r8169 0000:02:00.0: can't disable ASPM; OS doesn't have ASPM control > [ 38.126069] libphy: r8169: probed > [ 38.126250] r8169 0000:02:00.0 eth0: RTL8168ep/8111ep, 00:2b:67:b3:d9:20, XID 502, IRQ 105 > [ 38.126252] r8169 0000:02:00.0 eth0: jumbo features [frames: 9194 bytes, tx checksumming: ko] > [ 38.126294] r8169 0000:05:00.0: can't disable ASPM; OS doesn't have ASPM control > [ 38.126300] r8169 0000:05:00.0: enabling device (0000 -> 0003) > [ 38.139355] libphy: r8169: probed > [ 38.139523] r8169 0000:05:00.0 eth1: RTL8168h/8111h, 00:2b:67:b3:d9:1f, XID 541, IRQ 107 > [ 38.139525] r8169 0000:05:00.0 eth1: jumbo features [frames: 9194 bytes, tx checksumming: ko] > [ 42.120935] Generic FE-GE Realtek PHY r8169-200:00: attached PHY driver [Generic FE-GE Realtek PHY] (mii_bus:phy_addr=r8169-200:00, irq=IGNORE) > [ 42.247646] r8169 0000:02:00.0 eth0: Link is Down > [ 42.280799] Generic FE-GE Realtek PHY r8169-500:00: attached PHY driver [Generic FE-GE Realtek PHY] (mii_bus:phy_addr=r8169-500:00, irq=IGNORE) > [ 42.477616] r8169 0000:05:00.0 eth1: Link is Down > [ 76.479569] r8169 0000:02:00.0 eth0: Link is Up - 1Gbps/Full - flow control rx/tx > [ 91.271894] r8169 0000:02:00.0 eth0: Link is Down > [ 99.873390] r8169 0000:02:00.0 eth0: Link is Up - 1Gbps/Full - flow control rx/tx > [ 99.878938] r8169 0000:02:00.0 eth0: Link is Down > [ 102.579290] r8169 0000:02:00.0 eth0: Link is Up - 1Gbps/Full - flow control rx/tx > [ 185.086002] r8169 0000:02:00.0 eth0: Link is Down > [ 392.884584] r8169 0000:02:00.0 eth0: Link is Up - 1Gbps/Full - flow control rx/tx > [ 392.891208] r8169 0000:02:00.0 eth0: Link is Down > [ 395.889047] r8169 0000:02:00.0 eth0: Link is Up - 1Gbps/Full - flow control rx/tx > [ 406.670738] r8169 0000:02:00.0 eth0: Link is Down > > Really nothing strange, even it negotiates to 1Gbps. > > But during iperf3, it only goes up to miserable 3Mbps. > > Is this some known bug or something special related to the passive adapter? > > Since the adapter is passive, and hasn't experience anything wrong for a long time, I really doubt that. > > Thanks, > Qu > > Thanks for the report. From which kernel version did you upgrade? Please test with the prior kernel version and report behavior (link stability and speed). Under 5.9, does ethtool -S eth0 report packet errors?