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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2C07DC6FA8E for ; Fri, 24 Feb 2023 18:13:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229478AbjBXSNc (ORCPT ); Fri, 24 Feb 2023 13:13:32 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40960 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229379AbjBXSNb (ORCPT ); Fri, 24 Feb 2023 13:13:31 -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 9B8F4168A0 for ; Fri, 24 Feb 2023 10:13:30 -0800 (PST) Received: by mail-ed1-x52b.google.com with SMTP id da10so734633edb.3 for ; Fri, 24 Feb 2023 10:13:30 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=jCGKPWP75PhDWNzrQdgfwZ0I3/xuTZSe9X5l8XId1pI=; b=l1kFBjs9zzT5q12TpXj/AAtEQ9jkhpaLJ92YBnuRnFNqa9K4rqYBrJ4hBbudXMu8mZ I9wsc863zHQ1EjlduYuoqok8E80sszMp38Ls4v3EK1SbznjPF2MdZDpjdfiM50yvv7Qe zui0xhWibh2kIGxMxO8cx+KMfJEAlZtlBztQk70ADywzW17LsY0viTXmdmrGm0nkhs/N /kMbJdD7Zo5GBFz7ajIlYmM38xmW/uk6PYZTn0EdpdcJ7f4hU1pKkCyjSID3o705E169 JjqsC57ZJb9KMRkkH1u7QopndOGbij/AKausFxj+nfTDcda0OuB+U7Lmb68HeFvA4YUW llbw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=jCGKPWP75PhDWNzrQdgfwZ0I3/xuTZSe9X5l8XId1pI=; b=IMzJ32GsI1EVJnxUi+/srMyKELrJK4kL5Yqh6YX1RP8+jR+3WU9sAzvl+L/nUhbAtG 7AbFrxnTifOeEF82UbbnZOVXkzaA0a4ykSi5ZN4OI9tC78VX6YT5i7+ESvxoBmij8vHE 5CUmOShQ80HiQqgaUn72gMI9rsWBlkfdmk2IdQ3TaskhcAVlMeL5PLPSoZC/SBm4XSY1 AFqA2lvnmIo6brxD6QTkHSEW/8HGlrOZEmeKRoa56ZY/xbU7AYoPqLKq+fXRxcdfLgVw kWMaLWExe/eoSdQZA2Qu4HLvE65c1V35ttC4NOYeclj2/zikXcqhd/heCU0rjU7PgRZq liMA== X-Gm-Message-State: AO0yUKUeSWfHXeesX5zS/Ru17QsLxqjKs/4DTfmlB61uqb6O392qLV28 tmIeDQphcWU80lahrTK/CBg= X-Google-Smtp-Source: AK7set8D+8MnpsxPL2ysOKpflFvuybeaDMVqLIF1hFpR+NziqSK/XTgaaIFO1JDjap85jkcIdTsmLw== X-Received: by 2002:a05:6402:291:b0:4ad:5276:8ea4 with SMTP id l17-20020a056402029100b004ad52768ea4mr15392290edv.20.1677262408938; Fri, 24 Feb 2023 10:13:28 -0800 (PST) Received: from skbuf ([188.27.184.189]) by smtp.gmail.com with ESMTPSA id bw10-20020a170906c1ca00b008b133f9b33dsm11084061ejb.169.2023.02.24.10.13.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 24 Feb 2023 10:13:28 -0800 (PST) Date: Fri, 24 Feb 2023 20:13:26 +0200 From: Vladimir Oltean To: Frank Wunderlich Cc: =?utf-8?B?QXLEsW7DpyDDnE5BTA==?= , netdev , erkin.bozoglu@xeront.com, Andrew Lunn , Florian Fainelli , Felix Fietkau , John Crispin , Mark Lee , Lorenzo Bianconi , Matthias Brugger , Landen Chao , Sean Wang , DENG Qingfang Subject: Re: Choose a default DSA CPU port Message-ID: <20230224181326.5lbph42bs566t2ci@skbuf> References: <20230218205204.ie6lxey65pv3mgyh@skbuf> <20230221002713.qdsabxy7y74jpbm4@skbuf> <20230222180623.cct2kbhyqulofzad@skbuf> <9c9ab755-9b5e-4e76-0e3c-119d567fc39d@arinc9.com> <20230222193440.c2vzg7j7r32xwr5l@skbuf> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Fri, Feb 24, 2023 at 07:07:23PM +0100, Frank Wunderlich wrote: > root@bpi-r2:~# ethtool -S eth0 | grep -v ': 0' > NIC statistics: > tx_bytes: 1643364546 > tx_packets: 1121377 > rx_bytes: 1270088499 > rx_packets: 1338400 > p06_TxUnicast: 1338274 > p06_TxMulticast: 120 > p06_TxBroadcast: 6 > p06_TxPktSz65To127: 525948 > p06_TxPktSz128To255: 5 > p06_TxPktSz256To511: 16 > p06_TxPktSz512To1023: 4 > p06_Tx1024ToMax: 812427 > p06_TxBytes: 1275442099 > p06_RxFiltering: 16 > p06_RxUnicast: 1121339 > p06_RxMulticast: 37 > p06_RxBroadcast: 1 > p06_RxPktSz64: 3 > p06_RxPktSz65To127: 43757 > p06_RxPktSz128To255: 3 > p06_RxPktSz256To511: 3 > p06_RxPktSz1024ToMax: 1077611 > p06_RxBytes: 1643364546 Looking at the drivers, I see pause frames aren't counted in ethtool -S, so we wouldn't know this. However the slowdown *is* lossless, so the hypothesis is still not disproved. Could you please test after removing the "pause" property from the switch's port@6 device tree node?