ath12k: No 6GHz Wireless found
Kang Yang
quic_kangyang at quicinc.com
Tue May 20 23:06:58 PDT 2025
On 5/21/2025 1:05 PM, Walt Holman wrote:
> On Thu, May 15, 2025 at 10:06 PM Kang Yang <quic_kangyang at quicinc.com> wrote:
>>
>>
>>
>> On 5/16/2025 1:47 AM, Walt Holman wrote:
>>> On Thu, May 15, 2025 at 4:22 AM Kang Yang <quic_kangyang at quicinc.com> wrote:
>>>>
>>>>
>>>>
>>>> On 5/15/2025 4:12 PM, Kang Yang wrote:
>>>>>
>>>>> On 4/20/2025 11:18 PM, Walt Holman wrote:
>>>>>> On Fri, Apr 18, 2025 at 4:18 PM Walt Holman <waltholman09 at gmail.com>
>>>>>> wrote:
>>>>>>> On Tue, Apr 15, 2025 at 4:23 PM Walt Holman <waltholman09 at gmail.com>
>>>>>>> wrote:
>>>>>>>> On Thu, Apr 10, 2025 at 10:32 AM Walt Holman
>>>>>>>> <waltholman09 at gmail.com> wrote:
>>>>>>>>> On Thu, Apr 10, 2025 at 3:26 AM Kang Yang
>>>>>>>>> <kang.yang at oss.qualcomm.com> wrote:
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> On 4/10/2025 3:37 AM, Walt Holman wrote:
>>>>>>>>>>> On Tue, Apr 8, 2025 at 4:17 AM Kang Yang
>>>>>>>>>>> <quic_kangyang at quicinc.com> wrote:
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> 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
>>>>>>>>>>>
>>>>>>>>>>> Sorry for the top-post earlier. I can't figure out how to capture
>>>>>>>>>>> the
>>>>>>>>>>> wireless packets as my chip/driver combo doesn't support monitor
>>>>>>>>>>> mode.
>>>>>>>>>> Your AP also cannot capture wireless packets?
>>>>>>>>>> log in AP by usbserial or ssh.
>>>>>>>>>> Try to enter command line. use iw command to create monitor
>>>>>>>>>> interface.
>>>>>>>>>> Then use tcpdump to capture packets.
>>>>>>>>>>
>>>>>>>>>>> I've attached a tarball that contains the trace data and additional
>>>>>>>>>>> firmware logs from the kernel.log file. Anything else you need, just
>>>>>>>>>>> ask. Thanks for your help,
>>>>>>>>>>
>>>>>>>>>> Your AP mac address?
>>>>>>>>>> Need it to help check the fw log.
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>> -Walt
>>>>>>>>> Sorry, the AP doesn't have tcpdump available on it. Also, this is a
>>>>>>>>> mesh setup with 3 nodes total. The main AP and 2 mesh nodes. I'm
>>>>>>>>> within 10 feet of one of the nodes and it's MAC for the wireless 6ghz
>>>>>>>>> network is: 10:7C:61:6F:2A:CA
>>>>>>>>>
>>>>>>>>> -Walt
>>>>>>>> The other 2 node 6ghz mac addresses are:
>>>>>>>> 10:7C:61:6F:1F:11 - Router
>>>>>>>> 10:7C:61:6F:32:92 - Node
>>>>>>>>
>>>>>>>> The first MAC address I gave you earlier was a node located
>>>>>>>> approximately 5 feet from where the laptop is.
>>>>>>>>
>>>>>>>> -Walt
>>>>>>> Well, I'm running into a brick wall it seems trying to get 6Ghz
>>>>>>> enabled on this. I tried the ath-next-20250418 tag just now and still
>>>>>>> don't see or connect to my 6Ghz network. I applied the patches in:
>>>>>>> https://lore.kernel.org/linux-wireless/20250418-ath12k-6g-lp-vlp-
>>>>>>> v1-0-c869c86cad60 at quicinc.com/T/#t
>>>>>>>
>>>>>>> hoping that would help, but alas, no 6Ghz networks. I see that MLO and
>>>>>>> other nice fixes are coming in 6.16, but without 6Ghz, they'll do me
>>>>>>> no good. I'm really wondering if it's a firmware issue that excludes
>>>>>>> my chip or something. Again, anything I can do to help, let me know.
>>>>>>> Thanks,
>>>>>>>
>>>>>>> -Walt
>>>>>> Well, I used the swiss army tools to look at the firmware, and my chip
>>>>>> is listed in the firmware, so it's not excluded or anything. Really
>>>>>> puzzlling issue as my other two laptops connect to the 6Ghz network
>>>>>> just fine, and this laptop does in Windows, just not in Linux. I
>>>>>> really don't use Windows at all though, so that does me no good.
>>>>>>
>>>>>> This laptop used to connect to the 6Ghz network around the Sep. - Oct.
>>>>>> 2024 timeframe. Something has changed and now it doesn't. I'm going to
>>>>>> boot off a live image of Ubuntu 24.10 and see if I can see the
>>>>>> network. It was always hit or miss so we'll see.
>>>>>> -Walt
>>>>>
>>>>>
>>>>> Can you find 6 GHz AP now?
>>>>>
>>>>
>>>> Our firmware team said you station device sent the probe request but
>>>> didn't receive the probe resp or beacon.
>>>>
>>>> Since your current configuration is single 6 GHz AP. Could you change
>>>> your AP configuration to 6 GHz + 2/5 GHz to have a retry?
>>>>
>>> I adedd another network with 2.4 / 5 / 6Ghz settings and still only
>>> connect to the 5Ghz network portion. This is verified through wavemon
>>> and the AP. I saw some patches recently to address 6 Ghz operatoins in
>>> various modes (https://lore.kernel.org/linux-wireless/1692f2f8-c77e-87ce-db70-00b4d9fc7c95@oss.qualcomm.com/),
>>> but the patch doesn't apply cleanly to current or ath-pending. Don't
>>> know that it would help, but it seemed interesting.
>>>
>>> When I went back to the older kernel / distro I still could not see
>>> the 6 Ghz band nor connect to it. I think something has changed on the
>>> AP as well, as this used to work intermittently. I think I have
>>> mentioned this before, but I have a dual-boot setup on this laptop and
>>> in Windows 11, it does see and connect to the 6 Ghz band and MLO works
>>> as well. Also, I have about 5 other devices (phones and laptops) that
>>> can all connect to the 6 Ghz band. I think it's a combination of the
>>> AP and the driver / firmware.
>>
>>
>>
>>
>> Do you have another WCN7850?
>> Our monitor mode is now in pending branch, and one fix is coming so that
>> you can use WCN7850 to capture 6 GHz management packects. So that our
>> firmware team can do further research.
>
> I've successfully put the wifi into monitor mode and captured some
> traffic. I used freq. 6615, which is the frequency my Holman-6G runs
> at with a width of 320Mhz. I can see beacons and other wifi related
> traffic, however, I did not have an encryption key set, so any traffic
> should still be encrypted. Hopefully the beacons and other things
> help.
> I took a chance that the patches were ready and used the most recent
> tag: ath-pending-202505201841 and it appeared to work OK. Let me know
> if this helps and if you need anything else. Thanks,
This is what we needed.
But i didn't see probe req in this file.
Not sure if you didn't run the test?
Can you put this monitor mode device between your test station device
and AP device(Try to ensure that it is on the connection line between
the two device), then start the full test?
Remember run "iw reg set US" before connecting step.
Also, please provide us the host/firmware log and the packets.
All logs/packets come from the same test, will make it easier for our
firmware team to debug.
🙂
>
> -Walt
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