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=-1.0 required=3.0 tests=FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS autolearn=ham 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 9F56CC43387 for ; Thu, 17 Jan 2019 21:24:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7255A20855 for ; Thu, 17 Jan 2019 21:24:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728616AbfAQVYH (ORCPT ); Thu, 17 Jan 2019 16:24:07 -0500 Received: from mout.gmx.net ([212.227.17.20]:35325 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726905AbfAQVYH (ORCPT ); Thu, 17 Jan 2019 16:24:07 -0500 Received: from [10.10.11.100] ([95.88.178.171]) by mail.gmx.com (mrgmx101 [212.227.17.168]) with ESMTPSA (Nemesis) id 0MbsV8-1gUE9t1YNq-00JIAU; Thu, 17 Jan 2019 22:23:55 +0100 Subject: Re: stmmac / meson8b-dwmac To: martin.blumenstingl@googlemail.com, linux-amlogic@lists.infradead.org, netdev@vger.kernel.org, Gpeppe.cavallaro@st.com, alexandre.torgue@st.com References: From: Simon Huelck Openpgp: preference=signencrypt Autocrypt: addr=simonmail@gmx.de; prefer-encrypt=mutual; keydata= mQGiBD/bCNARBACE3URTBXZ/AA03NwRNtz03ewQn3uhvYSTjfqgplBtb3dfC4a79BXDRIWVX xPGH9Ewios1c8gMu3/RI2l3JzXoISfw5b0L/5igyPKV+sGuUA2FD27kYtPaaF/TqEWIv+Yxp 9DCjCX5IQSYyvCfcxcyEkY8eVWxnaAlV3zKRR8wn0wCglWIOtAugBcg1YXmoLpFZE8Ca0fkD /jG+n4U9DPfCgkbgjQ/dv2W2a0ZDHccA9N8AW/FTXGyXXO0e7ql9/kORJnp7jD7/Z9HCKpeS HajgxuX9Vhfx6bH1dAMfsg88+K8pOO9oulNX1+YffQyZWOfdbmnZDUzBt9HKR9Wgh8WoIyw9 TVluclzn6hYz+z9jbqHWMOsiCu8zA/0apHbW8vaIDT4+nNUxNdqU1TKa9kW47vNjwYYL0jZW TXNjDIRpqJVSugYVc/U847GoVoxyvtzre4TAbBV8h0BAOeMdxI5En67RGWzeNaMDJV1bwapj qdfj3e/X8rnGIfwz47rwztLNKoAIUlKrATwroiI7UNT+84G7H5qalu+Eu7QqU2ltb24gSHVl bGNrIDxzaW1vbi5odWVsY2tAZ29vZ2xlbWFpbC5jb20+iGIEExECACIFAlH7wL4CGyMGCwkI BwMCBhUIAgkKCwQWAgMBAh4BAheAAAoJEJNSVvfBt05KlBQAn1JDO7e4H3N0WFJkZnxvObhk 2kiAAJwPdDd6T1TuGo4iDIENRhAX4AH2KrkBDQQ/2wjSEAQAj6JnDDQzIIYzPGsrHRvaq8vw n8VrZCbPRvkngGvtQIss5pH/MLeu9jLepDGO9WHByFSg4QJh8cINYwTLtX8Bu0naA6ZI46hn GyfxdRlxSU9dRqHpU3G0tymL1w3AER6aVSfdXQTmFgf61anKunbIIptkqzZurkjnxkwCE/RM RscABA0D/jhglpj8siSIAxs8XLVfKJrjzbYM9/wS0NfdSXBeQJiYtKrY0WMNsqjY50wDnLMg anORN/odT6mCwKI6xChzxEv/ta4+teZl92aitziSuqmtl+jm23DpOcUC7UBz2W1+TvnrhPR+ MKu8pPKAgsE8AI5uwCcNJx7V3bczYkIGaXybiEYEGBECAAYFAj/bCNIACgkQk1JW98G3Tko6 3wCfZBpZAUhUz/Rcp2rfg/YSKl4YLlEAoJN7e322OvHc2GQ9n1+tKLi6Og4c Message-ID: Date: Thu, 17 Jan 2019 22:23:53 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.4.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Provags-ID: V03:K1:JzXQiyj7YoQP1D+x4rOh+bnzN5vA0b6sOATJ4t+/KoaotmlZ+A5 Zd2VLxiKn3vmQnKpxgP3YXQ+tq3r7Q4ynH//PiNuInNn5cGyfcxnRa2tX9C3Kl1QpSUAo+s 2O8bHuID63Tn7S4dFHljjtMwL00VHYhMd+R0Mlg8Vf7YGKTqEKa2RR+i4/qNKJ4t7dErq45 b3JfYXprFU/4cGb+y27Lg== X-UI-Out-Filterresults: notjunk:1;V03:K0:JkEv7LX2id0=:RuQXAXsDjE10P+cdJBDcN9 Xifsrw0OiLZNTT2NLlx6tDYYaQ3LHEDmVaYwP/Siv3VLXFz7mfHx3I8s7H08XG1Aj3yz5PMgi COUSxKf+R/K5wmI4lS1oAmY0zLr/Xof4tBVmCqJ6H4UjNP3+72QChhHIGBxecElKSoAGtKbnB KJtHOsmuX9OOrFsjv/BkWRCjVbsNxkHjgx6t4t5gRtbqmpEfumvCgVDzNRQxUA4FQ1sCtHpNc G7Y250m1taQ42TJb4LTUOHiZJZabc83nf1twsstyfTqKon3nI68pgb3AS3sSowqB5f5jcx/ur IVX3S97MoGIyk3Q+Z+0BfyHmOzLGsGyDmFdKE5/e8pTtADfMojVW98dwv0Wh25oPAWa9GbkcD SKhXE2Lqa95XP7D8aTcypi2ApsXFPDdYTKUA7eLaRaS9h4l/qQJOa3uGV3gLuKiqPOMeRa+x6 upWSz9X0xTdcJQrfupm1ObuIhtWo6MGSgi9uF0GnCQhRsLLDoalpymiS/O2MIk1kU7MICRK0z fkh0Gl09pH+EbaidRju0yR3zdk9lzOi5uHX2Yof3FclLqWn3xpyoFJHu/A3jXK0Jkm4E1uSdH Hg7ZL+LYXpw/lafl6AUiZpBafNwJSWSjsOSLDkyZ0hz3/PyfngsJKlZHnRUrQzPSe8igETmbM xpWNZASJureBynP2HElKM4Mt+6bfW8pUrTxJHSBaMCAmPUBbyDm63+7aMAs8uMFQ5OLrE+XqM 00Y2lGI/uv2dDHZMLpppnpuPOovOrc4zezPbTdHDNAAsK60WJWvUFfXBahQDEpaoXwrFgCaJT awx6gBwdElmn3FSfWymENaUk3ggTpUW/wnwX9/n23xQII8RMWIrSxf7r94wjMYBL8KH3NYPfG AF4JlgUC0ucWTnMj9p9dL/l69//b3vNFV/+NoL56eFPUYfrNZD0NVhBb+Rxbl2DEVOAlPrzqp bmTJVQ1qoig== Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Am 17.01.2019 um 21:57 schrieb Martin Blumenstingl: > Hi Simon, > > On Thu, Jan 17, 2019 at 7:53 PM Simon Huelck wrote: >> Hi Martin, >> >> >> deutsch ? > theoretisch: ja, das endet bei mir aber in einem komischen Mix aus > deutsch und englisch, von daher... > >> I got problems with my ODROID c2 running on 4.19.16 ( and some releases >> earlier ). the stmmac / dwmac driver doesnt provide the 800M/900M >> performance that i was used to earlier. >> >> >> Now im stuck near 550M/600M in the same environment. but what really >> confuses me that duplex does hurt even more. > interesting that you see this on the Odroid-C2 as well. > previously I have only observed it on an Odroid-C1 > >> PC --- VLAN3 --> switch --VLAN3--> ODROID >> >> NAS <-- VLAN1 -- switch <-- VLAN1-- ODROID >> >> >> this means when im doing a iperf from PC to NAS, that my ODROID has load >> on RX/TX same time (duplex). this shouldnt be an issue , all is 1GBits >> FD. And in the past that wasnt an issue. >> >> >> Now what happens: >> >> - benchmark between PC - ODROID is roughly 550M >> >> - benchmark between NAS - ODROID is roughly 550M >> >> - benchmark between PC - NAS is only around 300M >> >> >> and like i said i was easliy able to hit 800 or even 900M to my NAS >> earlier. I applied some .dtb fixes for interrupt levels for the >> meson-gx.dtsi and meson-gxbb-odroid-c2.dtb, which will be mainlined , >> but the effect stayed identical. > good that you have the interrupt patches already applied > I believe it don't fix any performance issues - it's a fix for the > Ethernet controller seemingly getting "stuck" (not processing data > anymore). however, that already rules out one potential issue > >> are you aware of this problem ? Earlier kernel versions were all >> perfectly fine and i stepped ( self compiled) kernel through all major >> releases since odroid c2 was mainlined. > I'm not aware of this - so it would be great if you could re-send your mail to: > - the mainline Amlogic mailing list at: linux-amlogic@lists.infradead.org > - the netdev mailing list (where all the networking people discuss > their issues): netdev@vger.kernel.org > - the stmmac maintainers: Gpeppe.cavallaro@st.com, > alexandre.torgue@st.com, joabreu@synopsys.com ok , will do so > > it's great that you stepped through various releases in the past. > you can even help us to get closer to the root cause of the problem > using git bisect. in case you haven't used git bisect yet:: > - git bisect start > - git bisect good v4.18 (assuming v4.18 was good) > - git bisect bad v4.19 (assuming v4.19 is bad) > - the repeat the following: > -- (git will checkout a different revision and ask you to test it) > -- compile, boot the kernel and test whether your problem still exists > -- enter either "git bisect good", "git bisect bad" or "git bisect > skip" (for example if the revision doesn't compile, your board doesn't > start with it, ...) > > git bisect will output one commit which is likely to be the cause (or > at least a puzzle piece which points to the root cause) the problem is that i dont have these kernel sources anymore :-(. but i can provide some testing and numbers. maybe i dig if i got these kernel configs somewhere around but i did not change much during migrating im using a zyxel gs1900-8 switch and a qnap ts231p , and as i said i didnt change my setup. i was able to hit 100MByte/s from my NAS , so close to the benchmarks of 900MBit/s > > > Regards > Martin