It's still missing in the upstream linux-firmware git tree.  Be patient for a while :)

BTW, I didn't backport the support of ath11k for Leap 15.3 / SLE15-SP3 while most of other WiFi are updated to 5.9.  If you're interested, it's still OK to backport those stuff.

we can't package it from https://github.com/kvalo/ath11k-firmware for now? the license looks similar (haven't checked closely)

Why not creating another package on OBS at first?

I'm building a new package ath11k-firmware in my OBS home:tiwai project.
Lars, could you try it later?  Once after it's confirmed to work (more or less), I'll push it to OBS hardware project, then to TW.  Until the files are merged in linux-firmware tree, we can keep using it.

Right now I can't test - I'm relying on DisplayLink so can't upgrade to 5.10rcX, but Amazon willing, the dock will be replaced with a Thunderbolt one soon.

Setting myself to NEEDINFO so I don't forget.

Thanks for making the package available!

# rpm -q ath11k-firmware kernel-default
ath11k-firmware-20201023-5.1.noarch
kernel-default-5.10.rc2-1.1.ga51c4bb.x86_64

[   17.542762] ath11k_pci 0000:55:00.0: WARNING: ath11k PCI support is experimental!
[   17.542955] ath11k_pci 0000:55:00.0: BAR 0: assigned [mem 0x8e300000-0x8e3fffff 64bit]
[   17.542973] ath11k_pci 0000:55:00.0: enabling device (0000 -> 0002)
[   17.612372] intel-lpss 0000:00:1e.0: enabling device (0000 -> 0002)
[   17.612612] idma64 idma64.4: Found Intel integrated DMA 64-bit
[   17.612893] dw-apb-uart.4: ttyS4 at MMIO 0x4017004000 (irq = 16, base_baud = 6250000) is a 16550A
[   17.630662] NET: Registered protocol family 42
[   17.632150] pstore: Efi pstore disabled, enforce via pstore.backend=efi
[   17.632150] pstore: On a broken BIOS, this can severely harm your system
[   17.632151] pstore: Only enable efi based pstore when you know what you are doing
[   17.634876] input: PC Speaker as /devices/platform/pcspkr/input/input19
[   17.639318] snd_hda_intel 0000:00:1f.3: DSP detected with PCI class/subclass/prog-if info 0x040100
[   17.730358] mhi 0000:55:00.0: Requested to power ON
[   17.730475] mhi 0000:55:00.0: Power on setup success
[   17.730775] snd_hda_intel 0000:00:1f.3: Digital mics found on Skylake+ platform, using SOF driver
[   17.730911] input: Dell WMI hotkeys as /devices/platform/PNP0C14:02/wmi_bus/wmi_bus-PNP0C14:02/9DBB5994-A997-11DA-B012-B622A1EF5492/input/input20
[   17.731200] mhi 0000:55:00.0: Direct firmware load for ath11k/QCA6390/hw2.0/amss.bin failed with error -2
[   17.731202] mhi 0000:55:00.0: Error loading firmware: -2

Just a missing symlink, maybe?

Indeed the repo seems to have multiple *.bin files for different versions, and one must copy it somehow to the right place.

In your case, try to find '*.bin' file under /lib/firmware/ath11k/QCA6390/hw2.0, and copy or symlink to /lib/firmware/ath11k/QCA6390/hw2.0 directory.
As far as I see, multiple amss.bin and m3.bin are found:
  QCA6390/hw2.0/msm/1.0.1.c1.2/WLAN.HST.1.0.1.c1.2-00014-QCAHSTSWPL_SILICONZ-1/amss.bin
  QCA6390/hw2.0/msm/1.0.1.c1.2/WLAN.HST.1.0.1.c1.2-00014-QCAHSTSWPL_SILICONZ-1/m3.bin
  QCA6390/hw2.0/1.0.1/WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1/amss.bin
  QCA6390/hw2.0/1.0.1/WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1/m3.bin
  QCA6390/hw2.0/1.0.1/WLAN.HST.1.0.1-01230-QCAHSTSWPLZ_V2_TO_X86-1/m3.bin
and you'll need to choose one of them.

I have no idea what each subidrectory indicates exactly, so it'll be just a guess work.

FWIW, I updated my OBS package to provide *some* symlinks.  Let's cross fingers.

This works fine with the 5.11.0 and kernel-firmware-ath11k-20210208-354.1.noarch.

Excellent! Thanks.