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Intel AX200 (iwlwifi mvm driver), issues in AP_mode IEEE802.11ax, Linux

RS19104
Beginner
3,337 Views

Hello, we are currently working with different Intel AX200 boards in Linux, both as stations and AP. Unfortunately, we are not able to make IntelAX200 run in AP_mode, IEEE 802.11ax.

Configuration:

Linux Kernel 5.8

2. Iwlwifi-backport core56 (and have also tested other)

3. Hostapd-master (2.9 and 2.10 developer version)

4. Ubuntu 20.04.1

Configuration on STA:

1. Linux Kernel 5.8

2. Iwlwifi-backport core56 (and have also tested other as suggested by Intel)

3. Ubuntu 20.04.1

The support by Intel has lead to several tries, which still do not allow for Intel AX200 to run in AP_mode.

In attach goes a zip with the following docs:

  • 1. Details :   Explanation regarding the crash issues; the types of configuration tested and result.
  • 2. dmesg_AP :  dmesg output of the AP where crash can be observed
  • 3. dmesg_STA : dmesg of the STA trying to connect to AP
  • 4. Wireshark-AP-STA : Wireshark capture of the frames exchanged when crash occurs
  • 5. hostapd :  hostapd logs in debug mode.
  • 6. hostapd_cli : This files contains the output of the stations connected to or trying to connect to AP.
  • 7. Gmail - Configuring WiFi6 in hostapd : This pdf contains the mails exchanged in hostapd mailing list.
  • 7. sample: This folder contains a wireshark capture of a successfull connection between AP and a STA in 802.11n mode.

Note this is a follow-up from @Shm posts between Sep and December 2020.

0 Kudos
11 Replies
Alberto_Sykes
Employee
3,304 Views

RS19104, Thank you for posting in the Intel® Communities Support.

 

In reference to your inquiry, please try the following troubleshooting steps in order to determine if there might be a problem with the Wireless configuration:

 

WiFi troubleshooting steps

 

Step 1: Check whether the kernel version supports this device:

The reference table of Wireless adapters and corresponding kernel versions is available in the following link:

https://wireless.wiki.kernel.org/en/users/drivers/iwlwifi

The latest FWs are available by the following link:​

https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/

If the kernel version corresponds to the Wireless adapter, proceed with step 2.

 

Step 2: Check whether the Wireless adapter is connected correctly:

Type the following command to the terminal: # lspci​ 

Verify that the Intel network controller ​is identified, as on a picture below. If not, then the system doesn't identify the Intel networidentifyk adapter and you will need to make sure it's properly integrated. You may need to request help from the system manufacturer. If the wireless adapter is properly identified - proceed with the step 3.

Alberto_R_Intel_0-1614708652488.png

 

 

Step 3: Check whether this is an iwlwifi issue:

Type the following command to the terminal: # modinfo iwlwifi​ (example of the command output is on the picture below). If there is no output, then the module isn’t installed this is the distribution installation issue.

Alberto_R_Intel_1-1614708686130.png

 

 

Please type: # lsmod | grep iwlwifi​   

Alberto_R_Intel_2-1614708758042.png

 

 

If the result is empty, the driver hasn't been loaded. Most likely to be a distribution issue.

To verify, please type: # dmesg | grep iwlwifi​   

Alberto_R_Intel_3-1614708826776.png

 

 

If the result is empty, the driver wasn’t initialized and this is a distribution issue. If the result is populated as on the above picture, proceeed with the step 4.

 

Step 4: Check whether the suitable firmware is installed:

Please type: # dmesg | grep “no suitable firmware found!”​

Alberto_R_Intel_4-1614708884017.png

 

 

If the result is not empty, it means you don’t have a suitable FW (api mentioned in the dmesg).

Please visit here​ https://wireless.wiki.kernel.org/en/users/drivers/iwlwifi for supported FW, or here​ ​https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/ for the latest versions.

If these steps didn't reveal the issue or didn't solve the problem, proceed with the Step 5: 

 

Step 5: Collect the debug data:

Please type: # dmesg | grep ASSERT​ 

If the output is empty, please follow this wiki: https://wireless.wiki.kernel.org/en/users/drivers/iwlwifi/debugging to extract dmesg and trace-cmd.

If the output has value, please collect from the wiki FW dump too.

 

Any questions, please let me know.

 

Regards,

Albert R.

 

Intel Customer Support Technician

 

 

RS19104
Beginner
3,293 Views

Step1: We are using Kernel 5.9 so the kernel supports the device. ..................

$ uname -a
Linux for1793 5.9.0-050900-generic #202010112230 SMP Sun Oct 11 22:34:01 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

 

Step 2: The NIC can be seen with lspci ............................

wifitsn@for1793:~$ lspci
00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Host Bridge/DRAM Registers (rev 07)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor PCIe Controller (x16) (rev 07)
00:01.2 PCI bridge: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor PCIe Controller (x4) (rev 07)
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 530 (rev 06)
00:14.0 USB controller: Intel Corporation 100 Series/C230 Series Chipset Family USB 3.0 xHCI Controller (rev 31)
00:14.2 Signal processing controller: Intel Corporation 100 Series/C230 Series Chipset Family Thermal Subsystem (rev 31)
00:16.0 Communication controller: Intel Corporation 100 Series/C230 Series Chipset Family MEI Controller #1 (closed) (rev 31)
00:17.0 SATA controller: Intel Corporation HM170/QM170 Chipset SATA Controller [AHCI Mode] (rev 31)
00:1c.0 PCI bridge: Intel Corporation 100 Series/C230 Series Chipset Family PCI Express Root Port #1 (closed) (rev f1)
00:1c.4 PCI bridge: Intel Corporation 100 Series/C230 Series Chipset Family PCI Express Root Port #5 (closed) (rev f1)
00:1f.0 ISA bridge: Intel Corporation QM170 Chipset LPC/eSPI Controller (rev 31)
00:1f.2 Memory controller: Intel Corporation 100 Series/C230 Series Chipset Family Power Management Controller (rev 31)
00:1f.3 Audio device: Intel Corporation 100 Series/C230 Series Chipset Family HD Audio Controller (rev 31)
00:1f.4 SMBus: Intel Corporation 100 Series/C230 Series Chipset Family SMBus (rev 31)
00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (2) I219-LM (rev 31)
02:00.0 3D controller: NVIDIA Corporation GM108M [GeForce 940MX] (rev a2)
03:00.0 Network controller: Intel Corporation Wi-Fi 6 AX200 (rev 1a)
04:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS522A PCI Express Card Reader (rev 01)

 

Step 3: the module is adequately loaded.

wifitsn@for1793:~$ modinfo iwlwifi
filename:       /lib/modules/5.9.0-050900-generic/updates/drivers/net/wireless/intel/iwlwifi/iwlwifi.ko
version:        iwlwifi-stack-public:release/core56:8758:f9a85a73
license:        GPL
author:         Intel Corporation linuxwifi@intel.com
description:    Intel(R) Wireless WiFi driver for Linux
firmware:       iwlwifi-7265D-29.ucode
firmware:       iwlwifi-7265-17.ucode
firmware:       iwlwifi-3168-29.ucode
firmware:       iwlwifi-3160-17.ucode
firmware:       iwlwifi-7260-17.ucode
firmware:       iwlwifi-8265-36.ucode
firmware:       iwlwifi-8000C-36.ucode
firmware:       iwlwifi-9260-th-b0-jf-b0-46.ucode
firmware:       iwlwifi-9000-pu-b0-jf-b0-46.ucode
firmware:       iwlwifi-ma-a0-mr-a0-59.ucode
firmware:       iwlwifi-ma-a0-gf-a0-59.ucode
firmware:       iwlwifi-SoSnj-a0-hr-b0-59.ucode
firmware:       iwlwifi-SoSnj-a0-gf-a0-59.ucode
firmware:       iwlwifi-SoSnj-a0-gf4-a0-59.ucode
firmware:       iwlwifi-ty-a0-gf-a0-59.ucode
firmware:       iwlwifi-so-a0-gf-a0-59.ucode
firmware:       iwlwifi-so-a0-hr-b0-59.ucode
firmware:       iwlwifi-so-a0-jf-b0-59.ucode
firmware:       iwlwifi-cc-a0-59.ucode
firmware:       iwlwifi-QuQnj-b0-jf-b0-59.ucode
firmware:       iwlwifi-QuZ-a0-jf-b0-59.ucode
firmware:       iwlwifi-QuZ-a0-hr-b0-59.ucode
firmware:       iwlwifi-Qu-b0-jf-b0-59.ucode
firmware:       iwlwifi-Qu-c0-hr-b0-59.ucode
firmware:       iwlwifi-QuQnj-b0-hr-b0-59.ucode
firmware:       iwlwifi-Qu-b0-hr-b0-59.ucode
srcversion:     EF18F85B887E2FE0D687ACC
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alias:          pci:v00008086d00007AF0svsd000000B0bcsci
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alias:          pci:v00008086d000030DCsvsdbcsci*
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alias:          pci:v00008086d000024FDsvsd00008110bcsci
alias:          pci:v00008086d000024FDsvsd00009010bcsci
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alias:          pci:v00008086d000024F3svsd00000000bcsci
alias:          pci:v00008086d000024F3svsd00000930bcsci
alias:          pci:v00008086d000024F3svsd00000950bcsci
alias:          pci:v00008086d000024F3svsd00000850bcsci
alias:          pci:v00008086d000024F3svsd00000910bcsci
alias:          pci:v00008086d000024F3svsd00000810bcsci
alias:          pci:v00008086d000024F6svsd00000030bcsci
alias:          pci:v00008086d000024F5svsd00000010bcsci
alias:          pci:v00008086d000024F3svsd00000044bcsci
alias:          pci:v00008086d000024F3svsd00000004bcsci
alias:          pci:v00008086d000024F3svsd00009150bcsci
alias:          pci:v00008086d000024F3svsd00009050bcsci
alias:          pci:v00008086d000024F3svsd00008150bcsci
alias:          pci:v00008086d000024F3svsd00008050bcsci
alias:          pci:v00008086d000024F3svsd00009132bcsci
alias:          pci:v00008086d000024F3svsd00008132bcsci
alias:          pci:v00008086d000024F3svsd00009130bcsci
alias:          pci:v00008086d000024F3svsd00008130bcsci
alias:          pci:v00008086d000024F4svsd0000D030bcsci
alias:          pci:v00008086d000024F4svsd0000C030bcsci
alias:          pci:v00008086d000024F4svsd00009030bcsci
alias:          pci:v00008086d000024F4svsd00008030bcsci
alias:          pci:v00008086d000024F3svsd00009110bcsci
alias:          pci:v00008086d000024F3svsd00009010bcsci
alias:          pci:v00008086d000024F3svsd00008110bcsci
alias:          pci:v00008086d000024F3svsd00008010bcsci
alias:          pci:v00008086d000024F3svsd0000B0B0bcsci
alias:          pci:v00008086d000024F3svsd0000D0B0bcsci
alias:          pci:v00008086d000024F3svsd0000D050bcsci
alias:          pci:v00008086d000024F3svsd0000C050bcsci
alias:          pci:v00008086d000024F3svsd0000D010bcsci
alias:          pci:v00008086d000024F3svsd0000C110bcsci
alias:          pci:v00008086d000024F3svsd0000C010bcsci
alias:          pci:v00008086d000024F4svsd00001030bcsci
alias:          pci:v00008086d000024F4svsd00000030bcsci
alias:          pci:v00008086d000024F3svsd00001150bcsci
alias:          pci:v00008086d000024F3svsd00000150bcsci
alias:          pci:v00008086d000024F3svsd00001050bcsci
alias:          pci:v00008086d000024F3svsd00000250bcsci
alias:          pci:v00008086d000024F3svsd00000050bcsci
alias:          pci:v00008086d000024F3svsd00001110bcsci
alias:          pci:v00008086d000024F3svsd00001012bcsci
alias:          pci:v00008086d000024F3svsd00000012bcsci
alias:          pci:v00008086d000024F3svsd000001F0bcsci
alias:          pci:v00008086d000024F3svsd00000110bcsci
alias:          pci:v00008086d000024F3svsd00001132bcsci
alias:          pci:v00008086d000024F3svsd00000132bcsci
alias:          pci:v00008086d000024F3svsd00001130bcsci
alias:          pci:v00008086d000024F3svsd00000130bcsci
alias:          pci:v00008086d000024F3svsd000010B0bcsci
alias:          pci:v00008086d000024F3svsd00001010bcsci
alias:          pci:v00008086d000024F3svsd00000010bcsci
alias:          pci:v00008086d0000095Asvsd00009E10bcsci
alias:          pci:v00008086d0000095Asvsd00009400bcsci
alias:          pci:v00008086d0000095Asvsd00009000bcsci
alias:          pci:v00008086d0000095Bsvsd0000520Abcsci
alias:          pci:v00008086d0000095Bsvsd00005212bcsci
alias:          pci:v00008086d0000095Asvsd00005F10bcsci
alias:          pci:v00008086d0000095Asvsd00005490bcsci
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alias:          pci:v00008086d0000095Asvsd00005510bcsci
alias:          pci:v00008086d0000095Asvsd00005410bcsci
alias:          pci:v00008086d0000095Asvsd00005412bcsci
alias:          pci:v00008086d0000095Asvsd00005012bcsci
alias:          pci:v00008086d0000095Asvsd00005C10bcsci
alias:          pci:v00008086d0000095Bsvsd00005210bcsci
alias:          pci:v00008086d0000095Bsvsd00005302bcsci
alias:          pci:v00008086d0000095Bsvsd00005310bcsci
alias:          pci:v00008086d0000095Asvsd00005100bcsci
alias:          pci:v00008086d0000095Asvsd00005110bcsci
alias:          pci:v00008086d0000095Asvsd00005010bcsci
alias:          pci:v00008086d000024FBsvsd00000000bcsci
alias:          pci:v00008086d000024FBsvsd00002150bcsci
alias:          pci:v00008086d000024FBsvsd00002050bcsci
alias:          pci:v00008086d000024FBsvsd00002110bcsci
alias:          pci:v00008086d000024FBsvsd00002010bcsci
alias:          pci:v00008086d00003165svsd00008110bcsci
alias:          pci:v00008086d00003165svsd00008010bcsci
alias:          pci:v00008086d00003166svsd00004210bcsci
alias:          pci:v00008086d00003166svsd00004310bcsci
alias:          pci:v00008086d00003165svsd00004110bcsci
alias:          pci:v00008086d00003165svsd00004510bcsci
alias:          pci:v00008086d00003165svsd00004410bcsci
alias:          pci:v00008086d00003166svsd00004212bcsci
alias:          pci:v00008086d00003165svsd00004012bcsci
alias:          pci:v00008086d00003165svsd00004010bcsci
alias:          pci:v00008086d000008B3svsd00001170bcsci
alias:          pci:v00008086d000008B3svsd00001070bcsci
alias:          pci:v00008086d000008B3svsd00008570bcsci
alias:          pci:v00008086d000008B3svsd00008470bcsci
alias:          pci:v00008086d000008B4svsd00008272bcsci
alias:          pci:v00008086d000008B4svsd00008370bcsci
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depends:        compat,cfg80211
retpoline:      Y
name:           iwlwifi
vermagic:       5.9.0-050900-generic SMP mod_unload
parm:           debug:debug output mask (uint)
parm:           xvt_default_mode:xVT is the default operation mode (default: false) (bool)
parm:           swcrypto:using crypto in software (default 0 [hardware]) (int)
parm:           11n_disable:disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX (uint)
parm:           amsdu_size:amsdu size 0: 12K for multi Rx queue devices, 2K for AX210 devices, 4K for other devices 1:4K 2:8K 3:12K (16K buffers) 4: 2K (default 0) (int)
parm:           fw_restart:restart firmware in case of error (default true) (bool)
parm:           nvm_file:NVM file name (charp)
parm:           uapsd_disable:disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3) (uint)
parm:           enable_ini:Enable debug INI TLV FW debug infrastructure (default: true (bool)
parm:           bt_coex_active:enable wifi/bt co-exist (default: enable) (bool)
parm:           led_mode:0=system default, 1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0) (int)
parm:           power_save:enable WiFi power management (default: disable) (bool)
parm:           power_level:default power save level (range from 1 - 5, default: 1) (int)
parm:           disable_11ac:Disable VHT capabilities (default: false) (bool)
parm:           disable_11ax:Disable HE capabilities (default: false) (bool)
parm:           disable_msix:Disable MSI-X and use MSI instead (default: false) (bool)
parm:           remove_when_gone:Remove dev from PCIe bus if it is deemed inaccessible (default: false) (bool)

wifitsn@for1793:~$ lsmod | grep iwlwifi
iwlwifi               393216  1 iwlmvm
cfg80211              753664  3 iwlmvm,iwlwifi,mac80211
compat                 16384  4 iwlmvm,iwlwifi,mac80211,cfg80211

Step 4: ...................................................................

wifitsn@for1793:~$ sudo dmesg | grep "no suitable firmware found!"
wifitsn@for1793:~$

No Output. So suitable firmware is being used
5.wifitsn@for1793:~$ sudo dmesg | grep ASSERT
wifitsn@for1793:~$
No output. So attached a trace-cmd output (Step5)

 

 

Alberto_Sykes
Employee
3,289 Views

Hello RS19104, Thank you very much for providing that information and the reports.

 

We will do further research on this matter, as soon as I get any updates I will post all the details on this thread.

 

Regards,

Albert R.

 

Intel Customer Support Technician

 

Alberto_Sykes
Employee
3,191 Views

Hello RS19104, I just received an update on this matter.


I sent you an email, please verify your inbox.


Regards,

Albert R.


Intel Customer Support Technician


Alberto_Sykes
Employee
3,169 Views

Hello RS19104, I just wanted to check if you received the email that I sent you and if you need further assistance on this matter?


Regards,

Albert R.


Intel Customer Support Technician


RS19104
Beginner
3,161 Views

Dear Alberto,

I confirm that the problem has been solved. The board now works well. We have upgraded the kernels to 5.11.6 and the microcode to .59.

 

Best Regards and thank you,

Rute Sofia

 

Alberto_Sykes
Employee
3,155 Views

Hi RS19104, Thank you very much for sharing those updates.


Perfect, excellent, it is great to hear that the problem got fixed after upgrading the kernels to 5.11.6 and the microcode to .59. Thank you also for sharing the solution on this forum, we are sure it will be very helpful for all the peers viewing this thread.


Any other inquires, do not hesitate to contact us again.


Regards,

Albert R.


Intel Customer Support Technician


Tremain
Beginner
2,804 Views

What was the fix for this? I am trying to get an AX201 to work on a system where AX200 and AX210 failed also. Thanks.

RS19104
Beginner
2,767 Views

Hello

 

upgrade to kernel 5.11.6

upgrade the used microcode to .59 (iwlwifi-mvm)

We see some problems with the rates sometimes (not clear if it is a problem with the boards or hostapd as the documentation does not help), but it works.

Tremain
Beginner
2,752 Views

I might have found the problem but I don't know how to test it. Ubuntu is trying to load the iwlwifi-QuZ- microcode instead of iwlwifi-Qu-. I attempted to delete all of the iwlwifi-QuZ but then the AX201 isn't recognized at all and no firmware is loaded until I restore the iwlwifi-QuZ. Dmesg shows that it's failing to load QuZ but then loads it anyways, apparently never bothering with the Qu. 

 

[ 260.680868] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-QuZ-a0-hr-b0-39.ucode failed with error -2
[ 260.680871] iwlwifi 0000:00:14.3: minimum version required: iwlwifi-QuZ-a0-hr-b0-39
[ 260.680872] iwlwifi 0000:00:14.3: maximum version supported: iwlwifi-QuZ-a0-hr-b0-59
[ 431.980657] iwlwifi 0000:00:14.3: loaded firmware version 59.601f3a66.0 QuZ-a0-hr-b0-59.ucode op_mode iwlmvm
[ 628.057550] iwlwifi 0000:00:14.3: Queue 4 is stuck 2 4
[ 628.057584] iwlwifi 0000:00:14.3: Queue 5 is stuck 1 153
[ 628.057836] iwlwifi 0000:00:14.3: Loaded firmware version: 59.601f3a66.0 QuZ-a0-hr-b0-59.ucode

 

Btw, dmesg shows that it is being detected as an AX201:

 

[ 432.012713] iwlwifi 0000:00:14.3: Detected Intel(R) Wi-Fi 6 AX201 160MHz, REV=0x354

 

 

gusarg81
Beginner
2,082 Views

Hi, in my case using that kernel and even that firmware does not work. Reg domain can't be changed and then, AP mode for 5Ghz will not work.

There must be a way to disable DRS/LAR in Linux with newer kernels...

Anyway in Intel can reply to this please? @Alberto_Sykes 

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