Daily update - iwlwifi / LinuxKPI bsaed wireless

Hi,

thanks to all who tested the various changes and reported back!

The changes are in main and I'll MFC them in 3-4 days to stable/14.


If you cannot get onto 11ac but 11a (and possibly 11an) work fine, then
check what
 	ifconifig -v wlan0 list regdomain
says.  I got reminded that FCC (likely mostly) and ETSI are the
regdomains which have 11ac entries.  I tried to sort TW out today[1]
for someone but I won't have the time to do it for every country.
It's a painful, long and error prone process.


We got one new firmware crash report [2].

What may be sorted:
- bapt's report for AX101 should get further now (combination of the
   chnage he tested and the next item)
- What I thought was a firmware crash reported presumably when
   switching bands or due to VHT on 2.4Ghz was in fact a crash due to
   STA bandwidth > Channel Context channel width which got solved.
   Please note:  there was a follow-up chnage compared to the original
   patch for testing to not provoke other problems with locking or
   firmware.  If you tested the origial version please update!
- The "BT Coex" crash may be solved now .. or not.  I'll wait for
   feedback.

Work in progress:
- Adjustments to 802.11-2020 for VHT160 -- I didn't get the logic
   right for the fallback;  I'll update that patch the next days.
- LinuxKPI alloc changes and dma sync;  most in review; waiting for
   at least one more to be accepted hopefully so half that batch can
   go in.

Next open items:
- WEP, TKIP
- A panic on reboot due to inconsistent net80211 locking

If you think I need t pay special attention to anything for 14.3-RELEASE
please let me know sooner than later.


Have a blessed weekend,
Bjoern


[1] https://reviews.freebsd.org/D49776
[2] https://lists.freebsd.org/archives/freebsd-wireless/2025-April/003148.html

-- 
Bjoern A. Zeeb                                                     r15:7