ath12k: No 6GHz Wireless found

Tue Apr 8 02:16:57 PDT 2025

On 4/8/2025 1:49 AM, Walt Holman wrote:
> Attached is a small packet capture where I did an 'iw wlp99s0 scan'
> and also deactivated and reactivated wireless while the scan was
> ongoing. Hopefully there's something interesting for you in there.
> Also, I've take 3 screenshots showing the configs of the wireless AP
> for the 6ghz network. The first screen is just the definition of the
> network. No advanced settings are used. The 2nd screen shows the
> channels and radio enabled. The 3rd screen has the advanced
> (professional) settings for the network. I believe I changed 'Agile
> Multiband' to enabled, but other settings are their defaults. Hope
> some of this helps. Let me know if you need anything else. Thanks,
> 

Your packets are Ethernet packets. I need wireless packets.

Not sure if you know how to add a seperate monitor interface to capture 
6 G channels' packet on your AP(you can google for specific command).

Also, please capture firmware log:

1. sudo apt install trace-cmd
2. sudo trace-cmd record -e ath12k_wmi_diag
3. run test
4. "ctrl c" to stop recording:
Hit Ctrl^C to stop recording
^CCPU0 data recorded at offset=0xdf5000
     2605056 bytes in size
Then share the trace.dat to us.

So you need to:
1. try to capture wireless packets.
2. capture firmware log(trade.data).
3. save kernel/wpa_supplicant/iw logs.

> -Walt
> 
> On Sun, Apr 6, 2025 at 8:58 PM Kang Yang <quic_kangyang at quicinc.com> wrote:
>>
>>
>>
>> On 4/4/2025 12:04 AM, Walt Holman wrote:
>>> 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).
>>>>
>>
>> Thanks for testing.
>>
>> Could you share your AP configuration?
>>
>>
>>>>
>>>> If you have sniffer, could please capture packets during testing?
>>
>>
>> Can you capture packets during the testing? I need to check probe req
>> and probe resp.
>>
>>>>
>>>> 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
>>