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Date:   Fri, 26 May 2023 17:55:48 +0000
To:     linux-wireless <linux-wireless@vger.kernel.org>,
        Gregory Greenman <gregory.greenman@intel.com>
From:   =?utf-8?Q?Barnab=C3=A1s_P=C5=91cze?= <pobrn@protonmail.com>
Subject: iwlwifi: AX201 misdetected as AX101
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Hi all,

I have an Acer Aspire A315-58 laptop[0], which, according to lspci has the =
following intel wireless chip:

   Device:=0900:14.3
    Class:=09Network controller [0280]
   Vendor:=09Intel Corporation [8086]
   Device:=09Wi-Fi 6 AX201 [a0f0]
  SVendor:=09Intel Corporation [8086]
  SDevice:=09Wi-Fi 6 AX201 [0244]
      Rev:=0920
   ProgIf:=0900
   Driver:=09iwlwifi
   Module:=09iwlwifi

However, in the kernel message buffer, the following message is written:

  [    3.633490] iwlwifi 0000:00:14.3: Detected Intel(R) Wi-Fi 6 AX101, REV=
=3D0x351

Also, this chip did not work with the 6.3.3 Arch Linux kernel, the driver l=
oaded the
`QuZ-a0-hr-b0-74.ucode` firmware:

  [    6.516505] iwlwifi 0000:00:14.3: WRT: Collecting data: ini trigger 13=
 fired (delay=3D0ms).
  [    6.517615] iwlwifi 0000:00:14.3: Start IWL Error Log Dump:
  [    6.517616] iwlwifi 0000:00:14.3: Transport status: 0x0000004A, valid:=
 6
  [    6.517617] iwlwifi 0000:00:14.3: Loaded firmware version: 74.a5e9588b=
.0 QuZ-a0-hr-b0-74.ucode
  [    6.517619] iwlwifi 0000:00:14.3: 0x00000084 | NMI_INTERRUPT_UNKNOWN  =
    =20
  ...
  [    6.861510] iwlwifi 0000:00:14.3: Failed to run INIT ucode: -110


I then noticed that firmwares 75-77 are available and that there were recen=
t changes
to the iwlwifi module that increased IWL_22000_UCODE_API_MAX, so I gave it =
a go,
and built the kernel at ae8373a5add4ea39f032563cf12a02946d1e3546 and now fi=
rmware 77
is loaded, and that seems to work, at least I did not notice any issues so =
far.

The full logs and other information about the laptop can be found here[0].


Regards,
Barnab=C3=A1s P=C5=91cze


[0]: https://linux-hardware.org/?probe=3D43069955ee