ath12k: No 6GHz Wireless found

Thu Apr 3 09:04:39 PDT 2025

On Thu, Apr 3, 2025 at 3:20 AM Kang Yang <quic_kangyang at quicinc.com> wrote:
>
>
>
> On 4/3/2025 1:48 AM, Walt Holman wrote:
> > On Tue, Apr 1, 2025 at 9:48 PM Kang Yang <quic_kangyang at quicinc.com> wrote:
>
> >>
> >> Test on 6.14.0-rc5-wt-ath+, with the firmware you used.
> >> I can get 6 GHz AP and connect to it.
> >>
> >> ath12k_pci 0000:03:00.0: fw_version 0x100301e1 fw_build_timestamp
> >> 2023-12-06 04:05 fw_build_id
> >> QC_IMAGE_VERSION_STRING=WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
> >>
> >> yk at yk-Mayan:~$ sudo iw wls1 scan | tee iw_scan.log:
> >> BSS 62:03:7f:12:64:64(on wls1) -- associated
> >>           TSF: 606308271476 usec (7d, 00:25:08)
> >>           freq: 6275
> >>           beacon interval: 100 TUs
> >>           capability: ESS Privacy SpectrumMgmt ShortSlotTime (0x0511)
> >>           signal: -17.00 dBm
> >>           last seen: 52 ms ago
> >>           Information elements from Probe Response frame:
> >>           SSID: MLO-KANG-6G
> >> and other 6 GHz APs:
> >>          SSID: 6G-gxia
> >>          SSID: NETGEAR97-6G
> >>          ……
> >>
> >>
> >> kernel log:
> >> [88158.033218] wls1: Inserted STA 62:03:7f:12:64:64
> >> [88158.033232] wls1: authenticate with 62:03:7f:12:64:64 (local
> >> address=00:03:7f:37:12:54)
> >> [88158.033242] wls1: send auth to 62:03:7f:12:64:64 (try 1/3)
> >> [88158.041895] wls1: authenticated
> >> [88158.041914] wls1: moving STA 62:03:7f:12:64:64 to state 2
> >> [88158.044291] wls1: determined local STA to be EHT, BW limited to 320 MHz
> >> [88158.045719] wls1: associate with 62:03:7f:12:64:64 (try 1/3)
> >> [88158.067045] wls1: RX AssocResp from 62:03:7f:12:64:64 (capab=0x511
> >> status=0 aid=4)
> >> [88158.089090] wls1: associated
> >>
> >> I can even connect to it by Ubuntu GUI.
> >>
> >> Can you update to 6.14.0-rc5-wt-ath+ and have a retry? Also please make
> >> sure that your wpa_supplicant/iw support 6 GHz(or directly update to the
> >> latest version).
> >>
> >> If you still cannot find 6 GHz AP, you can set debug_mask to 0xffffffff
> >> to get ath12k logs. Then give it to us.
> >>
> >>
> >>> -Walt
> >>>
> >>
> >
> > OK, I retested with the wt-ath 033125 tagged build. This included the
> > patch the Jeff suggested I try, but the rest of the tree was clean.
> > Still no 6ghz Wifi. I'm attaching a log file of the boot and first few
> > seconds with the debug mask turned on. I noticed that if I rmmod the
> > module and then modprobe it, it complains about not finding
> > firmware-2.bin, however, I thought that was only for the qcn based
> > chip? The HW info from dmesg looks like this:
> >
>
> I cannot find this tag...
>
>
>  From the log, the 6 GHz channel should work. When scan is triggered, FW
> shall send probe req on these channels. If AP send probe resp, station
> shall find the AP.
>
>
>
>
> > [    6.070282] ath12k_pci 0000:63:00.0: BAR 0 [mem
> > 0xdd800000-0xdd9fffff 64bit]: assigned
> > [    6.070310] ath12k_pci 0000:63:00.0: enabling device (0000 -> 0002)
> > [    6.071249] ath12k_pci 0000:63:00.0: MSI vectors: 16
> > [    6.071254] ath12k_pci 0000:63:00.0: Hardware name: wcn7850 hw2.0
> > [    6.596331] ath12k_pci 0000:63:00.0: qmi dma allocation failed
> > (7077888 B type 1), will try later with sma
> > ll size
> > [    6.604041] ath12k_pci 0000:63:00.0: chip_id 0x2 chip_family 0x4
> > board_id 0xff soc_id 0x40170200
> > [    6.604044] ath12k_pci 0000:63:00.0: fw_version 0x100301e1
> > fw_build_timestamp 2023-12-06 04:05 fw_build_id
> > QC_IMAGE_VERSION_STRING=WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-
> >
> > Also, I noticed when looking through the debug logs there are the
> > occasional WARNING statements from a BUG it appears. They trace back
> > to the mac.c file inside the ath12k code. There should be some in the
> > debug log that's attached. Let me know if I can do anything else.
> > Thanks,
> >
>
>
> I have never seen this warning on my upstream setup...Not sure if you
> have changed anything or using the correct code base.
>
> Jeff merged this patch-set into ath-202504021602. Can you try on this
> branch?
>
> git clone https://git.kernel.org/pub/scm/linux/kernel/git/ath/ath.git/
> git pull
> git reset --hard ath-202504021602
> compile and install...
>
> Also make sure that the firmware you used is from the same folder, don't
> mix with other folders:
> linux-firmware/ath12k/WCN7850/hw2.0
>
> 1. rmmod/insmod(debug_mask=0xffff)
> 2. iw reg get
> 3. iw reg set US
> 4. iw xxx scan
> wait and collect logs.
>
> don't do anything else.
>
>
> Also, can you show me your AP configuration.
> If you have another 6 GHz AP, you can have a try(better different brands).
>
>
> If you have sniffer, could please capture packets during testing?
>
> Thanks!
>
> > -Walt
>
OK, I cloned and built the kernel based on your instructions in your
last email. Originally, the result was identical to my last email,
including the WARNINGS. The .config I use is configured for a fully RT
PREEMPT kernel, which I wondered if that was why I was receiving the
WARNING. So I configured it as a Low Latency PREEMPT Desktop without
the RT_PREEMPT and that eliminated the WARNING. However, still no 6Ghz
networks. The firmware I'm using is straight from kernel.org GIT and I
do a 'make install; make dedup' to install it. I believe it should be
good. Attached is the latest log file.

-Walt
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