iwlwifi: AX200 wrong regulatory settings not changeable

iwlwifi: AX200 wrong regulatory settings not changeable

[Julian Wollrath]

Hi,

I am on kernel version 5.13 with a Intel AX200 (8086:2723) WLAN
adapter. I am in Switzerland, so the regulations as e.g. detailed in
[1] apply. I am trying to set the correct regulatory limits via

$ iw reg set CH

but apparently the device is self-managed and does not take these
settings into account:

$ iw reg get
global
country CH: DFS-ETSI
	(2400 - 2483 @ 40), (N/A, 20), (N/A)
	(5150 - 5250 @ 80), (N/A, 23), (N/A), NO-OUTDOOR, AUTO-BW
	(5250 - 5350 @ 80), (N/A, 20), (0 ms), NO-OUTDOOR, DFS, AUTO-BW
	(5470 - 5725 @ 160), (N/A, 26), (0 ms), DFS
	(5725 - 5875 @ 80), (N/A, 13), (N/A)
	(57000 - 66000 @ 2160), (N/A, 40), (N/A)

phy#0 (self-managed)
country 00: DFS-UNSET
	(2402 - 2437 @ 40), (6, 22), (N/A), AUTO-BW, NO-HT40MINUS,
NO-80MHZ, NO-160MHZ
	(2422 - 2462 @ 40), (6, 22), (N/A), AUTO-BW, NO-80MHZ, NO-160MHZ
	(2447 - 2482 @ 40), (6, 22), (N/A), AUTO-BW, NO-HT40PLUS,
NO-80MHZ, NO-160MHZ
	(5170 - 5190 @ 160), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW,
IR-CONCURRENT, NO-HT40MINUS, PASSIVE-SCAN
	(5190 - 5210 @ 160), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW,
IR-CONCURRENT, NO-HT40PLUS, PASSIVE-SCAN
	(5210 - 5230 @ 160), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW,
IR-CONCURRENT, NO-HT40MINUS, PASSIVE-SCAN
	(5230 - 5250 @ 160), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW,
IR-CONCURRENT, NO-HT40PLUS, PASSIVE-SCAN
	(5250 - 5270 @ 160), (6, 22), (0 ms), DFS, AUTO-BW,
NO-HT40MINUS, PASSIVE-SCAN
	(5270 - 5290 @ 160), (6, 22), (0 ms), DFS, AUTO-BW,
NO-HT40PLUS, PASSIVE-SCAN
	(5290 - 5310 @ 160), (6, 22), (0 ms), DFS, AUTO-BW,
NO-HT40MINUS, PASSIVE-SCAN
	(5310 - 5330 @ 160), (6, 22), (0 ms), DFS, AUTO-BW,
NO-HT40PLUS, PASSIVE-SCAN
	(5490 - 5510 @ 240), (6, 22), (0 ms), DFS, AUTO-BW,
NO-HT40MINUS, PASSIVE-SCAN
	(5510 - 5530 @ 240), (6, 22), (0 ms), DFS, AUTO-BW,
NO-HT40PLUS, PASSIVE-SCAN
	(5530 - 5550 @ 240), (6, 22), (0 ms), DFS, AUTO-BW,
NO-HT40MINUS, PASSIVE-SCAN
	(5550 - 5570 @ 240), (6, 22), (0 ms), DFS, AUTO-BW,
NO-HT40PLUS, PASSIVE-SCAN
	(5570 - 5590 @ 240), (6, 22), (0 ms), DFS, AUTO-BW,
NO-HT40MINUS, PASSIVE-SCAN
	(5590 - 5610 @ 240), (6, 22), (0 ms), DFS, AUTO-BW,
NO-HT40PLUS, PASSIVE-SCAN
	(5610 - 5630 @ 240), (6, 22), (0 ms), DFS, AUTO-BW,
NO-HT40MINUS, PASSIVE-SCAN
	(5630 - 5650 @ 240), (6, 22), (0 ms), DFS, AUTO-BW,
NO-HT40PLUS, PASSIVE-SCAN
	(5650 - 5670 @ 80), (6, 22), (0 ms), DFS, AUTO-BW,
NO-HT40MINUS, NO-160MHZ, PASSIVE-SCAN
	(5670 - 5690 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS,
NO-160MHZ, PASSIVE-SCAN
	(5690 - 5710 @ 80), (6, 22), (0 ms), DFS, AUTO-BW,
NO-HT40MINUS, NO-160MHZ, PASSIVE-SCAN
	(5710 - 5730 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS,
NO-160MHZ, PASSIVE-SCAN
	(5735 - 5755 @ 80), (6, 22), (N/A), AUTO-BW, IR-CONCURRENT,
NO-HT40MINUS, NO-160MHZ, PASSIVE-SCAN
	(5755 - 5775 @ 80), (6, 22), (N/A), AUTO-BW, IR-CONCURRENT,
NO-HT40PLUS, NO-160MHZ, PASSIVE-SCAN
	(5775 - 5795 @ 80), (6, 22), (N/A), AUTO-BW, IR-CONCURRENT,
NO-HT40MINUS, NO-160MHZ, PASSIVE-SCAN
	(5795 - 5815 @ 80), (6, 22), (N/A), AUTO-BW, IR-CONCURRENT,
NO-HT40PLUS, NO-160MHZ, PASSIVE-SCAN
	(5815 - 5835 @ 20), (6, 22), (N/A), AUTO-BW, IR-CONCURRENT,
	NO-HT40MINUS, NO-HT40PLUS, NO-80MHZ, NO-160MHZ, PASSIVE-SCAN

Unfortunately, the self-managed settings seem incorrect to me, e.g. the
full range from 5150-5350 MHz should be limited to NO-OUTDOOR use (see
the above settings listed under country CH and [2] for the official
text) but this is not the case for the self-managed part, so what the
device is actually using. Also the transmission power limits are not
always correct, e.g. 5725 MHz should be limited to 25mW (compare with
above, [1] or [3]) and not to 22dBm. Is it possible to change the
device to not being self-managed and to set the regulatory limits to
the one of the country I am using it in (as was possible with older
Intel devices as e.g. Intel Centrino Advanced-N 6205 which is using
iwldvm as driver).

Best regards,
Julian Wollrath


[1]
https://git.kernel.org/pub/scm/linux/kernel/git/sforshee/wireless-regdb.git/tree/db.txt#n317
[2] https://www.ofcomnet.ch/api/rir/1010/05
[3] https://www.ofcomnet.ch/api/rir/1008/12

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