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X-MS-Exchange-CrossPremises-SCL: 1 X-MS-Exchange-CrossPremises-Processed-By-Journaling: Journal Agent X-OrganizationHeadersPreserved: GVXP192MB3082.EURP192.PROD.OUTLOOK.COM X-Proofpoint-GUID: TDswQ9AvZsOFESHtBJHlSqtZl8H5IYW1 X-Proofpoint-Spam-Info: AW1haW4tMjYwOTI5MDAzMyBTYWx0ZWRfX1S0gAUj+DsRy 1f4tWzcBa5Cx5S6VVLFquQBfneOeY7GhhHmRX46Yn8wTi69w+XDJgDIcbjNI5QtNsQIapycmNNt cq4DlRx3chyjVysAYKiEzjKnOMA5U6U= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTI5MDAzMyBTYWx0ZWRfX3baTIdHkeI5s HQU1TBGeapIC6OPk4JmYz3MTeJzlpNCLgReu26oeJduyRNvHf9GJC4tGqAD60gkhR+03g6P+Kc8 atpMZulEGYp2YSP3JYkhHf6p/4Cw6ktlQExXRHJzMt6ENwqTAe9AdHkVKPLeiXXIvXem3LH2JQg s3CZ28vUo9e5zgjtvtf8EFbpM0xefrLFtjyF9Pa78bGJjOmyh11SCse1O0qpnOiuVzxJ/VO1+ws fVin+/xlNzABTa3JZmy4PfxVbT7ogMC7K7RxaqeHRk3gwQSTbgxh4QGjhfYuEajBjRojMcBkg0b 3Po/55heebRxt1/aWHp4RIhDBm7PZi6MRm8qvCeK+oQSsYSMAd5sNb2Gr/z8KkMznHsi/QRxden F9nBCe1by2qSrZ1MxbMhhQkS7/3NsHQcCXNw9i0tKFUJJhPvo7QOoUiFYd0yYUYa8p+1iRYL9pf 8qKV60Csia367rUGp4g== X-Authority-Analysis: v=2.4 cv=HcqB3SE8 c=1 sm=1 tr=0 ts=6abb771f cx=c_pps a=TKz6ITTkQb9IZZ8wZUeSgQ==:117 a=6eWqkTHjU83fiwn7nKZWdM+Sl24=:19 a=z/mQ4Ysz8XfWz/Q5cLBRGdckG28=:19 a=lCpzRmAYbLLaTzLvsPZ7Mbvzbb8=:19 a=xqWC_Br6kY4A:10 a=kj9zAlcOel0A:10 a=VdqzKS8jKosA:10 a=8gLI3H-aZtYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=tr3XZvuDWTETL0Uaxejn:22 a=WQ4YJ39tjzx_Hbm9pN5v:22 a=n4ahBwVgq5E5wYkGj10A:9 a=CjuIK1q_8ugA:10 X-Proofpoint-ORIG-GUID: TDswQ9AvZsOFESHtBJHlSqtZl8H5IYW1 On Fri, Sep 25, 2026 at 01:36:39PM +0530, Thirusenthil Kumaran J wrote: > On 9/8/2026 12:16 PM, Alexander Wilhelm wrote: > > > > Hello Developers, > > > > I am using QCN9274 chipsets with the `ath12k` driver on my devices. As far as I > > can tell, the driver uses the regulatory database from the `board-2.bin` file. > > However, some country definitions do not appear to be fully implemented, as the > > values differ from those in Linux's standard `wireless-regdb` repository. I even > > downloaded the latest `linux-firmware-20260810.tar.xz` and do not see any > > related changes there. > > > > For example, when switching to DE, I see the following values: > > * Channels 52-64: 23 dBm; I would expect 20.0 dBm > > * Channels 100-140: 30.0 dBm; I would expect 26.0 dBm > > * Channels 144-173: (disabled); I would expect 13.0 dBm > > > > US also appears to be inconsistent: > > * Channels 36-48: 30.0 dBm; I would expect 23.0 dBm > > * Channels 169-173: (disabled); I would expect 30.0 dBm > > > > I am aware that `wireless-regdb` is intentionally restrictive in some cases. For > > example, there are rules where 26.0 dBm is used instead of 30.0 dBm because it > > is implicitly assumed that TPC is not supported. Therefore, some differences may > > be expected. > > > > However, the values above still appear to be incorrect. Could someone at > > Qualcomm please investigate this and fix the regulatory information if it is > > indeed wrong? If the current behavior is intentional, I would appreciate an > > explanation of how these limits are derived, as they do not seem to match either > > the `wireless-regdb` entries or the applicable regulatory requirements. Thank > > you in advance. > > > > > > Best regards > > Alexander Wilhelm > > > > Hi Alexander, > > Our internal regulatory team is reviewing the source and rationale for > these values. We would also like to confirm which BDF was selected on > your platform during boot. Hi Thirusenthil, Thank you for your response. I am using a WLE7002Exx cards from "Compex Systems" and have also received the corresponding custom BDFs. I then added them to board-2.bin using qca-swiss-army-knife. For the regdb, I am using the default version that comes with the kernel (the one with ID 255). > Could you please share the following details from the affected platform? > - The exact platform/board model, or RDP number if applicable which is > used with the QCN9274. > - The complete dmesg output from the affected boot. > > In particular, please include the ath12k QMI target-capability messages > containing information similar to: > > chip_id, chip_family, board_id, soc_id, fw_version, > > These messages are printed from the 'ath12k_qmi_request_target_cap()' > function. They will help us identify the chipset, board ID, SoC, and > firmware version, and correlate the selected BDF with the regulatory data. > > For a quick filtered view, you may also run: > > dmesg | grep -i -E 'ath12k|board|bdf|chip_id|fw_version|fw_build|soc_id' > > With these details, we can verify whether the reported channels are > included in the selected BDF and continue investigating the regulatory > limits. The wireless modules are running on our in-house board based on a PowerPC64 T1023 platform. I am using OpenWrt v25.12.5 with wireless driver backports from v6.18.26. The board-2.bin currently originates from v6.12.94. The dmesg output (without debug messages) is provided below: user@host-A:~# logread -e ath12k ath12k_pci 0001:01:00.0: BAR 0 [mem 0xc00000000-0xc001fffff 64bit]: assigned ath12k_pci 0001:01:00.0: MSI vectors: 1 ath12k_pci 0001:01:00.0: Hardware name: qcn9274 hw2.0 ath12k_pci 0002:01:00.0: BAR 0 [mem 0xc10000000-0xc101fffff 64bit]: assigned ath12k_pci 0002:01:00.0: MSI vectors: 1 ath12k_pci 0002:01:00.0: Hardware name: qcn9274 hw2.0 ath12k_pci 0001:01:00.0: qmi dma allocation failed (29360128 B type 1), will try later with small size ath12k_pci 0001:01:00.0: memory type 10 not supported ath12k_pci 0001:01:00.0: chip_id 0x0 chip_family 0xb board_id 0x1005 soc_id 0x401a2200 ath12k_pci 0001:01:00.0: fw_version 0x160484db fw_build_timestamp 2025-12-09 20:09 fw_build_id QC_IMAGE_VERSION_STRING=WLAN.WBE.1.6-01243-QCAHKSWPL_SILICONZ-1 ath12k_pci 0002:01:00.0: qmi dma allocation failed (29360128 B type 1), will try later with small size ath12k_pci 0002:01:00.0: memory type 10 not supported ath12k_pci 0002:01:00.0: chip_id 0x0 chip_family 0xb board_id 0x1008 soc_id 0x401a2200 ath12k_pci 0002:01:00.0: fw_version 0x160484db fw_build_timestamp 2025-12-09 20:09 fw_build_id QC_IMAGE_VERSION_STRING=WLAN.WBE.1.6-01243-QCAHKSWPL_SILICONZ-1 ath12k_pci 0001:01:00.0: leaving PCI ASPM disabled to avoid MHI M2 problems debugfs: File 'ath12k' in directory 'phy0' already present! ath12k_pci 0002:01:00.0: leaving PCI ASPM disabled to avoid MHI M2 problems debugfs: File 'ath12k' in directory 'phy1' already present! Best regards Alexander Wilhelm