Am 30.07.21 um 23:52 schrieb Justin Mazzola Paluska:
>> On 7/30/21 4:08 PM, wi nk wrote:
>>>> On Fri, Jul 30, 2021 at 10:01 PM Kalle Valo <kvalo at codeaurora.org>> 
>>>> wrote:
>>>>>> Mitchell Nordine <mail at mitchellnordine.com>> writes:
>>>>>>
>>>>>>>> Hi kvalo and wink!
>>>>>>>>
>>>>>>>> It's been a while since I've had a chance to check in on this - have I
>>>>>>>> missed any QCA6390 progress?
>>>>>>>>
>>>>>>>> Currently the nixos-hardware repo is fixed to 5.10.18 along with most
>>>>>>>> of the patches on ath11k-qca6390-bringup, apart from two commits that
>>>>>>>> I'm sure were merged a while ago.
>>>>>>>>
>>>>>>>>
https://github.com/NixOS/nixos-hardware/blob/31f61b90ddb9257b94888ee17ccf96236e180c76/dell/xps/13-9310/default.nix#L14
>>>>>>>>
>>>>>>>>
>>>>>>>> Just wondering if the rest of the patches or some alternative fixes
>>>>>>>> have landed in a more recent version of the kernel yet, and whether
>>>>>>>> it's worth diving in and updating our nix expr yet?
>>>>>> Basically all you need is a BIOS update for XPS 9310 (to get 32 MSI
>>>>>> vectors working) and a recent Linux release. I don't remember the exact
>>>>>> kernel release, and can't check it now, but something like v5.12 or
>>>>>> v5.13 should work without extra patches.
>>>>>>
>>>>>> -- 
>>>>>> https://patchwork.kernel.org/project/linux-wireless/list/
>>>>>>
>>>>>>
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches 
>>>>>>
>>>>>>
>>>>>> -- 
>>>>>> ath11k mailing list
>>>>>> ath11k at lists.infradead.org
>>>>>> http://lists.infradead.org/mailman/listinfo/ath11k
>>>>
>>>> Hey Mitchell!
>>>>
>>>>    Just to add a little, Dell released a BIOS update that now allows
>>>> the driver to obtain all 32 MSI vectors (I posted around the time that
>>>> happened if you need the earliest version, otherwise just grab the
>>>> latest version).  I've been running 5.12 and 5.13 without WIFI issues.
>>>> Occasionally I still have bluetooth problems and the i915 drivers are
>>>> causing video artifacts randomly, but the wireless connection seems
>>>> pretty solid at this point.
>>
>> Which BIOS do you have?  I have 1.2.5.

>Just to add my experience - WiFi and BT are working. I'm on BIOS 3.0.4 
>(upgraded today via fwupdmgr / lvfs) with 5.13.5 / fedora 34 / xps 9310 
>32G dev edition. BT works since BIOS 2.something and kernel 5.12

>No memmap kernel parameter needed.

>>
>> I'm currently running 5.13 with a patch that reverted 
>> 3579994476b65cb5e272ff0f720a1fd31322e53f.  I needed to do that or the 
>> 5.13 kernel wouldn't connect to my access point because the firmware 
>> crashed.  (I got that pointer from 
>> https://bugzilla.kernel.org/show_bug.cgi?id=212059.)  With 357999 
>> reverted, everything works well.
>>
>> I still have the memmap=20M$12M kernel argument set from the old qca 
>> bringup branch days.  Do you also use that?
>>      --Justin
>>

I have the exact same issue as Justin described. I am on Bios 3.0.4 and Kernel
5.13.7 on Manjaro. I also have to revert
3579994476b65cb5e272ff0f720a1fd31322e53f to prevent the firmware from crashing
while connecting to my AP.
I figured out that the Problem is, that my router (Fritzbox), which is very
common in germany provide a (not changable) 160MHZ 5GhZ network. With 80MhZ or
lower there are no problems and ath11k is very stable.
Wen Gong released a patch e6ed929b4140d293bf8523f0376ed9bbdce29c47 for 5.14 to
address this Problem, but this patch caused a very unstable and randomly
crashing wifi on every channel width (20, 40, 80, 160 MhZ). On 5.14 i have now
to revert both mentioned patches to have a stable wifi. I posted this problem to
this list on june, but no one might mentioned it.

Dominik