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Mon, 07 Sep 2026 06:20:31 -0700 (PDT) X-Received: by 2002:a05:6122:c2d6:10b0:5c6:2128:7cf8 with SMTP id 71dfb90a1353d-5c7fbb2e565mr1556659e0c.3.1788787231199; Mon, 07 Sep 2026 06:20:31 -0700 (PDT) Received: from [192.168.202.12] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-5b6166ed2b7sm2377474e87.14.2026.09.07.06.20.27 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 07 Sep 2026 06:20:30 -0700 (PDT) Message-ID: Date: Mon, 7 Sep 2026 15:20:26 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 2/3] interconnect: qcom: x1e80100: enable QoS configuration To: Marc Zyngier , Raviteja Laggyshetty Cc: Mostafa Saleh , Georgi Djakov , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Rajendra Nayak , Abel Vesa , Bjorn Andersson , Konrad Dybcio , linux-arm-msm@vger.kernel.org, linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Dmitry Baryshkov , Odelu Kukatla References: <20260527-x1e80100_qos-v2-0-305c6539e6d2@oss.qualcomm.com> <20260527-x1e80100_qos-v2-2-305c6539e6d2@oss.qualcomm.com> <86ld9d4h4n.wl-maz@kernel.org> <86jyox4fas.wl-maz@kernel.org> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <86jyox4fas.wl-maz@kernel.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTA3MDE0NyBTYWx0ZWRfXxAKTsneIX3g5 HkJ8uuY6WZyUtFQxBOly+zm+9fS0dkOwZDvUqzbq8aU0VdLbjme1sk9j11HIvsHb2RqfYQkDaRC DDjoGhRvB0Te7WiWzZbP0Ntp37Fg7T5yqPtB9QRlzN9KrgZ5CtJOj9W2T+A3qE6iBvx2gGjtlb/ HqAHmtROaxzSzepi8QYwgdx6ldUBd6sHfH/L/imPj2PxvwLfQDQTLCy3oIa5qMR+6PhVNw2llUl 0d//K0VJS5MjVw/+BDJawLCVnXqwHcshzpQIFfQeIedmHrnFYdKN91Vpx6wFetLxbh5tWnD2qPc LG01+rsH+z9iEXrnmzT0zJBvC8ael5bwH14x+uf8c52gZfPXBcfXQlXrFs6eOTL3ZXbEEoVAnQU WsxQJaQ4MFji2BVatiATuQqrMlfRo//eR9i1TjAWVftVWy4jEdwZw9/74aZAKid8q8vwuReHQju GBjgZClzNRfJ4MzBUCA== X-Proofpoint-GUID: gn0v4OGORhhCleorili6UYyXYlUbu4GU X-Proofpoint-Spam-Info: AW1haW4tMjYwOTA3MDE0NyBTYWx0ZWRfX1YMmwZxSslFU Otaa8X3BL981o2TAgGDpFjK1QEa6c+wO1yxSMRkSIKYtOQxZrxBAoO+V/kVLi0KHxgDwxz9MXkj UtumkAHTGNv0Jpj0Kg79G/JCPv0IuCE= X-Authority-Analysis: v=2.4 cv=daOwG3Xe c=1 sm=1 tr=0 ts=6a9eba20 cx=c_pps a=JIY1xp/sjQ9K5JH4t62bdg==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=VdqzKS8jKosA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yx91gb_oNiZeI1HMLzn7:22 a=EUspDBNiAAAA:8 a=1XWaLZrsAAAA:8 a=6exlRfS1EnHN7lmZ4RQA:9 a=QEXdDO2ut3YA:10 a=tNoRWFLymzeba-QzToBc:22 X-Proofpoint-ORIG-GUID: gn0v4OGORhhCleorili6UYyXYlUbu4GU X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-09-07_03,2026-09-07_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 priorityscore=1501 bulkscore=0 spamscore=0 phishscore=0 lowpriorityscore=0 adultscore=0 malwarescore=0 impostorscore=0 clxscore=1015 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2609070147 On 9/7/26 10:49 AM, Marc Zyngier wrote: > On Mon, 07 Sep 2026 09:18:38 +0100, > Raviteja Laggyshetty wrote: >> >> >> >> On 9/7/2026 1:39 PM, Marc Zyngier wrote: >>> On Wed, 02 Sep 2026 14:00:52 +0100, >>> Mostafa Saleh wrote: >>>> >>>> On Wed, May 27, 2026 at 05:37:10AM +0000, Raviteja Laggyshetty wrote: >>>>> Enable QoS configuration for master ports with predefined priority >>>>> and urgency forwarding. [...] >>> I'm also seeing spurious resets on my "X1E001DE Snapdragon Devkit for >>> Windows" when doing large file transfers over the network (30GB+). >>> With this patch reverted on top of 7.3-rc1, both machines are as solid >>> as they were before it. >>> >> The current patch enable QoS for Hamoa SoC, which get programmed only during >> driver probe. This shouldn't impact or cause any spurious resets once the >> device is booted up and probe is successful. > > And yet it absolutely does break things. > > With this patch applied, the box resets within 5GB of heavy network > traffic, probably because some transaction get delayed, and a watchdog > fires. With the patch reverted, the box keeps receiving packets, and > everything is hunky dory (100GB+ so far). > > Which makes me think that the set of hardcoded parameters in this > patch is not universal at all. They are, provided the configuration is for the right SoC.. Turns out Purwa has a slightly different topology and that went unnoticed as the platform was brought up upstream. I'll send a fix. Konrad