[Bug 1955613] Re: Add basic Wifi support for Qualcomm WCN6856

I've recently bought the new [2022 Razer Blade 14'' with 3070
Ti](https://mysupport.razer.com/app/answers/detail/a_id/5924/~/at-a-
glance%3A-razer-blade-14-%282022%29-%7C-rz09-0427x).

Unfortunately after installing Ubuntu 22.04 Desktop I've quickly come to
realize that neither WiFi nor BT are working.

Information below:

```
uname -a
Linux surveily-wt-04 5.18.0-051800-generic #202205222030 SMP PREEMPT_DYNAMIC Sun May 22 20:33:46 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
```

```
sudo lspci -vqk -s 02:00
02:00.0 Network controller: Qualcomm Atheros QCNFA765 (rev 01)
Subsystem: Lite-On Communications Inc Device a82d
Flags: bus master, fast devsel, latency 0, IRQ 106, IOMMU group 13
Memory at fc200000 (64-bit, non-prefetchable) [size=2M]
Capabilities: [40] Power Management version 3
Capabilities: [50] MSI: Enable+ Count=32/32 Maskable+ 64bit-
Capabilities: [70] Express Endpoint, MSI 00
Capabilities: [100] Advanced Error Reporting
Capabilities: [148] Secondary PCI Express
Capabilities: [158] Transaction Processing Hints
Capabilities: [1e4] Latency Tolerance Reporting
Capabilities: [1ec] L1 PM Substates
Kernel driver in use: ath11k_pci
Kernel modules: ath11k_pci
```
```
sudo dmesg | grep ath
[ 0.000000] Linux version 5.18.0-051800-generic (kernel@kathleen) (gcc (Ubuntu 11.3.0-3ubuntu1) 11.3.0, GNU ld (GNU Binutils for Ubuntu) 2.38) #202205222030 SMP PREEMPT_DYNAMIC Sun May 22 20:33:46 UTC 2022
[ 2.287214] ath11k_pci 0000:02:00.0: BAR 0: assigned [mem 0xfc200000-0xfc3fffff 64bit]
[ 2.287231] ath11k_pci 0000:02:00.0: enabling device (0000 -> 0002)
[ 2.287642] ath11k_pci 0000:02:00.0: MSI vectors: 32
[ 2.287658] ath11k_pci 0000:02:00.0: wcn6855 hw2.1
[ 3.459225] ath11k_pci 0000:02:00.0: chip_id 0x12 chip_family 0xb board_id 0xff soc_id 0x400c1211
[ 3.459229] ath11k_pci 0000:02:00.0: fw_version 0x110d8c35 fw_build_timestamp 2022-01-27 04:01 fw_build_id QC_IMAGE_VERSION_STRING=WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3
[ 3.466553] ath11k_pci 0000:02:00.0: failed to fetch board data for bus=pci,vendor=17cb,device=1103,subsystem-vendor=11ad,subsystem-device=a82d,qmi-chip-id=18,qmi-board-id=255 from ath11k/WCN6855/hw2.1/board-2.bin
[ 3.466588] ath11k_pci 0000:02:00.0: failed to fetch board-2.bin or board.bin from WCN6855/hw2.1
[ 3.466599] ath11k_pci 0000:02:00.0: qmi failed to fetch board file: -2
[ 3.466599] ath11k_pci 0000:02:00.0: failed to load board data file: -2
```

Can anyone help me with resolving this issue?

Edit: I tried Ubuntu 18.x, 20.x, 21.x, 22.x and fedora 36 with all
various kernels and it all shows the same errors. Looks like only
Windows has the drivers for the recent hardware.

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https://bugs.launchpad.net/bugs/1955613

Title:
Add basic Wifi support for Qualcomm WCN6856

Status in linux package in Ubuntu:
Fix Released
Status in linux-firmware package in Ubuntu:
Fix Released
Status in linux-oem-5.14 package in Ubuntu:
Invalid
Status in linux source package in Focal:
Won't Fix
Status in linux-firmware source package in Focal:
Fix Released
Status in linux-oem-5.14 source package in Focal:
Fix Released
Status in linux source package in Jammy:
Fix Released
Status in linux-firmware source package in Jammy:
Fix Released
Status in linux-oem-5.14 source package in Jammy:
Invalid

Bug description:
[Impact]
Qualcomm WCN6856 doens't work.

[Fix]
Backport missing bits to make Wifi 5 work. Wifi 6 support is not in the
scope of this SRU.

[Test]
The system can connect to Wifi. Wifi still works after several rounds of
suspend/resume cycles.

[Where problems could occur]
The change is limited to ath11k, which is also the only user of mhi bus,
so the scope of risk is limited. Let alone it never worked before, so
there's not much room to go wrong.

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