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Wed, 28 Oct 2026 05:22:18 -0700 (PDT) Received: from [192.168.226.26] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-6b4960232f0sm1285386a12.10.2026.10.28.05.22.14 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 28 Oct 2026 05:22:17 -0700 (PDT) Message-ID: <80fad9c9-4a90-447e-96cb-b1fb0ed98a36@oss.qualcomm.com> Date: Wed, 28 Oct 2026 13:22:13 +0100 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: phy: qcom: qmp-combo: Glymur USB Gen2 fails on one port (chip rev 2.0) To: Burke Cates , Wesley Cheng , Vinod Koul Cc: Neil Armstrong , Manivannan Sadhasivam , Dmitry Baryshkov , Konrad Dybcio , Abel Vesa , Bjorn Andersson , Nabige Aala , Mahadevan P , linux-phy@lists.infradead.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org References: <5b31ea48-7918-4f0b-b012-6915b384b922@gmail.com> <76e97352-3a54-40de-8ef0-eef0ca27ca73@oss.qualcomm.com> <830ef909-d0d9-4f4f-8b73-0fc0cb7b46eb@gmail.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <830ef909-d0d9-4f4f-8b73-0fc0cb7b46eb@gmail.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-GUID: W68da6B-xdNewyo-yi0RtenXoDGDXSrQ X-Proofpoint-Spam-Info: AW1haW4tMjYxMDI4MDA0OSBTYWx0ZWRfX4joHYF2BulKS Dn1C0+qGu08fZGKNFVpuI427wZB3ir9N0z7bAIBXwOog1jA+p6u+m1yQ2uwqRBKe9XNa2RMEFve wMhsPunFBeSDQbHme3taMAS0NaVooFw= X-Authority-Analysis: v=2.4 cv=Tr1zFzXh c=1 sm=1 tr=0 ts=6ae1e8fb cx=c_pps a=5HAIKLe1ejAbszaTRHs9Ug==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=660iZSQnnn4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=gowsoOTTUOVcmtlkKump:22 a=hTJm5oL54bM-6IUA2lMA:9 a=QEXdDO2ut3YA:10 a=gYDTvv6II1OnSo0itH1n:22 X-Proofpoint-ORIG-GUID: W68da6B-xdNewyo-yi0RtenXoDGDXSrQ X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDI4MDA0OSBTYWx0ZWRfXxcuHWau7JQ6P 3DoCJfWKxj11jD5PHJ8lqUymMLSLYfa6QThuwsq6Y9BTWGim5n6ASdbKIfK+NfvTSsKov87Iu9x g8ZDR4ATX1gDAmlgsYtPsGZhxTtHBpqerLRc6zj6V6Rm0RRoPo2S/lb5wB1rnM0VzYZFyGA677F dYgDGTdnF82gC6/SLzrM0rc/3uJW1YFTN8YWYYz98K93yq0lJIi8MjNeOGWAg9QtjGZjDeBVFSA tgxJpepw57QrbkmStrcVEEN/5Dv8m3DHgfT4ziPE4Ppi9a1jndqkC9ZlZLTMfwEFIs5tvJIm8Jd f8bQ7BWJ0/vLNzXJWjnsOqEbfvcJgtBVWgV774rH8dw7qwg34sp1zO5mF9anoTEOj2qXxiD6fH/ yOZHrhjkw2uPXLSfJ6oI0pciDSf/TtHd5JIUGlWzaYNW7HfncmnVm63f/Nf85Wg2RSBh/KiDotY X0KDlpMlUSl1Eq/arVQ== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.138,FMLib:17.12.100.49 definitions=2026-10-28_04,2026-10-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 bulkscore=0 spamscore=0 clxscore=1015 phishscore=0 impostorscore=0 malwarescore=0 adultscore=0 suspectscore=0 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610190000 definitions=main-2610280049 On 10/28/26 12:55 AM, Burke Cates wrote: > On 27/10/2026 04:07, Konrad Dybcio wrote: >> Please check the attached patch. > > Thanks, Konrad: your patch fixes C2. With it, the RTL8159 10G NIC > enumerates at 10000M on C2 in 8 of 8 tries (both cables, both > orientations, present at boot and hotplugged, including a hotplug > after a cold boot with C2 empty), with no regressions on C1 or DP. > > I tested on the A16 (UX3607OA, SoC ID 662, revision 2.0, BIOS > UX3607OA.312), on v7.3 plus out-of-tree Glymur platform/board patches. > Your patch applied as-is, and I removed my local PHY changes so it > alone programs the USB tables. > > - RTL8159 on C2: 10000M (SuperSpeed Plus Gen 2x1) in 8 of 8 tries, > with both C-C cables from my report, in both orientations, present > at boot and hotplugged. No -71 or resets during SuperSpeed > enumeration. > - Cold boot with C2 empty (my original failure case), then hotplug: > 10000M in both orientations. > - A VIA VL822 USB 3.2 Gen2 hub on C2 (a third cable) enumerates at > 10000M, and the NIC behind it does too. > - C2 stays at Gen2 across s2idle (no disconnect or reset on resume). > - C1 is still Gen2 in both orientations. > - DP alt mode on C2 still trains 4 lanes at HBR (1080p60 monitor). > - With the NIC present at boot on C2, iperf3 to a 10G host gave > about 4.6 Gbit/s each way (TX 4.58, RX 4.71; 4.55 + 4.56 Gbit/s > bidirectional over 60 s). The NIC's link partner is 5GbE. > > Under sustained load I see about one burst of "r8152 ... Tx status > -71" per minute, each followed by an r8152 reset of the device. > Traffic continues and the link stays at Gen2. Is this something you've also seen with your local changes? Konrad