From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.tuxedocomputers.com (mail.tuxedocomputers.com [157.90.84.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E1B9132B9A6; Mon, 19 Jan 2026 17:57:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=157.90.84.7 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768845476; cv=none; b=RERYH08vSvbbtRwajUIVYHg0N3QDVRw75EyD6ZURYzhG/TFp76vJdJHQXDzOAeRkLIUKWyh/qyB5tE0+yc8KimUHQUHUFWaggd6mjV6WI5I3zmTmtBykUxziX5GhTfJ29apXDf91SaWbVXHPV8KKHYLFjeJ3nd+IIuzcOOBf/mo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768845476; c=relaxed/simple; bh=aeAMwDy300xtVjO1yTpgW+rQwqZyPI7I8i814Kjmu6k=; h=Content-Type:Message-ID:Date:MIME-Version:Subject:To:Cc: References:From:In-Reply-To; b=nFy2e3+AAddj9yX8BBuIbGkWlmF0YJKzy7WxywoKvl1LJaj+hr16qKpRwF44DkoUDaiS84QE/WgaRfizu0Wza8C9XJ1aCfr/oh83mZAhzJQXNpS9b8Td4/PbJx34fdmBM4GE/+r+ea02UChS4v2/WYwZoiuJueVzy+9wb47MG8w= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=tuxedocomputers.com; spf=pass smtp.mailfrom=tuxedocomputers.com; dkim=pass (1024-bit key) header.d=tuxedocomputers.com header.i=@tuxedocomputers.com header.b=mPvIMiYO; arc=none smtp.client-ip=157.90.84.7 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=tuxedocomputers.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=tuxedocomputers.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=tuxedocomputers.com header.i=@tuxedocomputers.com header.b="mPvIMiYO" Received: from [192.168.178.76] (business-24-134-207-61.pool2.vodafone-ip.de [24.134.207.61]) (Authenticated sender: g.gottleuber@tuxedocomputers.com) by mail.tuxedocomputers.com (Postfix) with ESMTPSA id 0507B2FC0052; Mon, 19 Jan 2026 18:57:48 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tuxedocomputers.com; s=default; t=1768845469; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=9neysObSDag5TO86XuxLkbvz/mjlkH1pwb0MRj36kJY=; b=mPvIMiYOzVg0ObOlBlitMjIQzlqSrkFae/PwrieuBn0X2NJJRz/UDThIQAeOstVZQ5MBFJ nA2zlPShY78k5srUy8PBEdJ5iRBbNCRyKAgcIwtPmom1dHgO4z2NJXIGIpL/DZpBe1Dpjt V1EaGyMPowt52U6J1za5tU2Wt6ETfn0= Authentication-Results: mail.tuxedocomputers.com; auth=pass smtp.auth=g.gottleuber@tuxedocomputers.com smtp.mailfrom=ggo@tuxedocomputers.com Content-Type: multipart/mixed; boundary="------------eBBAZgy1CXJ4IyGkpFjVDyhb" Message-ID: <24cfefff-1233-4745-8c47-812b502d5d19@tuxedocomputers.com> Date: Mon, 19 Jan 2026 18:57:48 +0100 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH RESEND net-next v6 0/3] Add DWMAC glue driver for Motorcomm YT6801 To: Georg Gottleuber , "Russell King (Oracle)" Cc: Yao Zi , andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, Frank.Sae@motor-comm.com, hkallweit1@gmail.com, vladimir.oltean@nxp.com, wens@csie.org, jszhang@kernel.org, 0x1207@gmail.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, jeffbai@aosc.io, kexybiscuit@aosc.io, Christoffer Sandberg References: <20260109093445.46791-2-me@ziyao.cc> <176827502141.1659151.5259885987231026081.git-patchwork-notify@kernel.org> <147b700c-cae2-4286-b532-ec408e00b004@tuxedocomputers.com> Content-Language: en-US From: Georg Gottleuber In-Reply-To: This is a multi-part message in MIME format. --------------eBBAZgy1CXJ4IyGkpFjVDyhb Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Am 19.01.26 um 18:45 schrieb Georg Gottleuber: > Hi, > > thanks for the quick reply. > > Am 19.01.26 um 16:43 schrieb Russell King (Oracle): >> On Mon, Jan 19, 2026 at 04:33:17PM +0100, Georg Gottleuber wrote: >>> Hi, >>> >>> I tested this driver with our TUXEDO InfinityBook Pro AMD Gen9. Iperf >>> revealed that tx is only 100Mbit/s: >>> > ... >>> >>> With our normally used DKMS module, Ethernet works with full-duplex and >>> gigabit. Attached are some logs from lspci and dmesg. Do you have any >>> idea how I can debug this further? >> >> My suggestion would be: >> >> - Look at the statistics, e.g. >> >> ip -s li sh dev enp2s0 > > That looks good (after iperf): > > 2: enp2s0: mtu 1500 qdisc mq state UP > mode DEFAULT group default qlen 1000 > link/ether ba:90:88:24:49:4f brd ff:ff:ff:ff:ff:ff > RX: bytes packets errors dropped missed mcast > 2091654 31556 0 0 0 0 > TX: bytes packets errors dropped carrier collsns > 88532451 1518 0 0 0 0 > > >> - apply >> https://lore.kernel.org/r/E1vgtBc-00000005D6v-040n@rmk-PC.armlinux.org.uk >> to enable more statistics to work, and check the network driver >> statistics: >> >> ethtool --statistics enp2s0 >> >> to see if there's any clues for what is going on. > > That looks also good, I think. I saved it before and after the test with > iperf. See attachments. Oh, there was something else interesting in dmesg. See attachment. > Regards, > Georg --------------eBBAZgy1CXJ4IyGkpFjVDyhb Content-Type: text/plain; charset=UTF-8; name="dmesg_motorcomm.txt" Content-Disposition: attachment; filename="dmesg_motorcomm.txt" Content-Transfer-Encoding: base64 WyAgICAwLjkzMzQ4MF0gZHdtYWMtbW90b3Jjb21tIDAwMDA6MDI6MDAuMDogZXJyb3IgLUVO T0VOVDogZmFpbGVkIHRvIHJlYWQgbWFjYTBsciBmcm9tIGVGdXNlClsgICAgMC45MzM0ODNd IGR3bWFjLW1vdG9yY29tbSAwMDAwOjAyOjAwLjA6IGVGdXNlIGNvbnRhaW5zIG5vIHZhbGlk IE1BQyBhZGRyZXNzClsgICAgMC45MzM0ODVdIGR3bWFjLW1vdG9yY29tbSAwMDAwOjAyOjAw LjA6IGZhbGxiYWNrIHRvIHJhbmRvbSBNQUMgYWRkcmVzcwpbICAgIDAuOTMzOTQxXSBkd21h Yy1tb3RvcmNvbW0gMDAwMDowMjowMC4wOiBVc2VyIElEOiAweDEwLCBTeW5vcHN5cyBJRDog MHg1MgpbICAgIDAuOTMzOTQzXSBkd21hYy1tb3RvcmNvbW0gMDAwMDowMjowMC4wOiAJRFdN QUM0LzUKWyAgICAwLjkzMzk1NV0gZHdtYWMtbW90b3Jjb21tIDAwMDA6MDI6MDAuMDogRE1B IEhXIGNhcGFiaWxpdHkgcmVnaXN0ZXIgc3VwcG9ydGVkClsgICAgMC45MzM5NTZdIGR3bWFj LW1vdG9yY29tbSAwMDAwOjAyOjAwLjA6IFJYIENoZWNrc3VtIE9mZmxvYWQgRW5naW5lIHN1 cHBvcnRlZApbICAgIDAuOTMzOTU3XSBkd21hYy1tb3RvcmNvbW0gMDAwMDowMjowMC4wOiBU WCBDaGVja3N1bSBpbnNlcnRpb24gc3VwcG9ydGVkClsgICAgMC45MzM5NThdIGR3bWFjLW1v dG9yY29tbSAwMDAwOjAyOjAwLjA6IFdha2UtVXAgT24gTGFuIHN1cHBvcnRlZApbICAgIDAu OTMzOTYxXSBkd21hYy1tb3RvcmNvbW0gMDAwMDowMjowMC4wOiBUU08gc3VwcG9ydGVkClsg ICAgMC45MzM5NjJdIGR3bWFjLW1vdG9yY29tbSAwMDAwOjAyOjAwLjA6IEVuYWJsZSBSWCBN aXRpZ2F0aW9uIHZpYSBIVyBXYXRjaGRvZyBUaW1lcgpbICAgIDAuOTMzOTY0XSBkd21hYy1t b3RvcmNvbW0gMDAwMDowMjowMC4wOiBFbmFibGVkIEwzTDQgRmxvdyBUQyAoZW50cmllcz0y KQpbICAgIDAuOTMzOTY1XSBkd21hYy1tb3RvcmNvbW0gMDAwMDowMjowMC4wOiBFbmFibGVk IFJGUyBGbG93IFRDIChlbnRyaWVzPTEwKQpbICAgIDAuOTMzOTY2XSBkd21hYy1tb3RvcmNv bW0gMDAwMDowMjowMC4wOiBUU08gZmVhdHVyZSBlbmFibGVkClsgICAgMC45MzM5NjddIGR3 bWFjLW1vdG9yY29tbSAwMDAwOjAyOjAwLjA6IFNQSCBmZWF0dXJlIGVuYWJsZWQKWyAgICAw LjkzMzk2OF0gZHdtYWMtbW90b3Jjb21tIDAwMDA6MDI6MDAuMDogVXNpbmcgNDgvNDggYml0 cyBETUEgaG9zdC9kZXZpY2Ugd2lkdGgKWyAgICAxLjMwMjAxNF0gZHdtYWMtbW90b3Jjb21t IDAwMDA6MDI6MDAuMCBlbnAyczA6IHJlbmFtZWQgZnJvbSBldGgwClsgICAgNS43NTMyNTld IGR3bWFjLW1vdG9yY29tbSAwMDAwOjAyOjAwLjAgZW5wMnMwOiBSZWdpc3RlciBNRU1fVFlQ RV9QQUdFX1BPT0wgUnhRLTAKWyAgICA1Ljc1NzUyOV0gZHdtYWMtbW90b3Jjb21tIDAwMDA6 MDI6MDAuMCBlbnAyczA6IFBIWSBbc3RtbWFjLTIwMDowMF0gZHJpdmVyIFtZVDg1MzFTIEdp Z2FiaXQgRXRoZXJuZXRdIChpcnE9UE9MTCkKWyAgICA1Ljc2ODQ0Ml0gZHdtYWMtbW90b3Jj b21tIDAwMDA6MDI6MDAuMCBlbnAyczA6IEVuYWJsaW5nIFNhZmV0eSBGZWF0dXJlcwpbICAg IDUuNzY4NjY5XSBkd21hYy1tb3RvcmNvbW0gMDAwMDowMjowMC4wIGVucDJzMDogUFRQIG5v dCBzdXBwb3J0ZWQgYnkgSFcKWyAgICA1Ljc2ODY3M10gZHdtYWMtbW90b3Jjb21tIDAwMDA6 MDI6MDAuMCBlbnAyczA6IGNvbmZpZ3VyaW5nIGZvciBwaHkvZ21paSBsaW5rIG1vZGUKWyAg ICA4Ljg0NzAwOV0gZHdtYWMtbW90b3Jjb21tIDAwMDA6MDI6MDAuMCBlbnAyczA6IExpbmsg aXMgVXAgLSAxR2Jwcy9GdWxsIC0gZmxvdyBjb250cm9sIHJ4L3R4Cg== --------------eBBAZgy1CXJ4IyGkpFjVDyhb--