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Date:      Tue, 30 Sep 2025 20:39:38 -0700
From:      Chris <bsd-lists@bsdforge.com>
To:        =?UTF-8?Q?Goran_Meki=C4=87?= <meka@tilda.center>
Cc:        wireless@freebsd.org
Subject:   Re: Weird (to me) state of iwlwifi 11a
Message-ID:  <74544eb89fd9840e7597c73f9e12365d@bsdforge.com>
In-Reply-To: <ac6177af-8a62-47bd-8361-5b4893131bc3@tilda.center>
References:  <81a04658-69f0-4b5b-bc53-f5cf63d468a3@tilda.center> <rp417378-2on7-7no1-rq2s-71s36q9s9nn1@mnoonqbm.arg> <ac6177af-8a62-47bd-8361-5b4893131bc3@tilda.center>

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[-- Attachment #1 --]
On 2025-09-30 03:39, Goran Mekić wrote:
> On 9/30/25 01:05, Bjoern A. Zeeb wrote:
>> On Mon, 29 Sep 2025, Goran Mekić wrote:
>> 
>>> Hello,
>>> 
>>> After watching bz@ talk at this years EuroBSDCon, I learned that iwlwifi 
>>> supports 11a, but only on newer chipsets. My laptop connects only to 11ng, 
>>> but here's the weird thing: I see at least one WiFi network on channel 36 
>>> through "ifconfig wlan0 scan". I thought that 11a is required to see 
>>> channel 36, but as a total WiFi noob, I might be totally wrong. Anyway, my 
>>> question is how to check if my iwlwifi is new enough and why do I see 
>>> network on channel 36? Thank you!
>> 
>> s/11a/11n and 11ac/    a != ac
>> 
>> /bz
>> 
> I used terminology found in ifconfig(8). Search for "mode mode" in that man 
> page,
> so I really wasn't trying to be smart. Does it mean that man page needs an 
> update?
> 
> Anyway, I guess being tired from EuroBSDCon trip back home made me forget 
> post the
> mandatory data, so I appologize. I run 15.0-RELEASE and the card is
> 
> # pciconf -lv iwlwifi0@pci0:1:0:0:
> iwlwifi0@pci0:1:0:0:    class=0x028000 rev=0x1a hdr=0x00 vendor=0x8086
> device=0x2725 subvendor=0x8086 subdevice=0x0024
>     vendor     = 'Intel Corporation'
>     device     = 'Wi-Fi 6E(802.11ax) AX210/AX1675* 2x2 [Typhoon Peak]'
>     class      = network
> 
> Is it new enough?
Yes. It's new enough. I'm on:
iwlwifi0: Detected Intel(R) Wi-Fi 6 AX201 160MHz
bz@ is on (or testing on) an AX210 (like you).
Mine shows:
wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
	options=0
	ether 3c:e9:f7:ec:63:d7
	inet 192.168.1.3 netmask 0xffffff00 broadcast 192.168.1.255
	inet6 fe80::3ee9:f7ff:feec:63d7%wlan0 prefixlen 64 scopeid 0x2
	groups: wlan
	ssid HighwayToHell channel 157 (5785 MHz 11a vht/80+) bssid 
10:0c:6b:4d:44:27
	regdomain FCC country US authmode WPA2/802.11i privacy ON
	deftxkey UNDEF AES-CCM 2:128-bit txpower 17 bmiss 7 mcastrate 6
	mgmtrate 6 scanvalid 60 -ampdutx ampdurx ampdulimit 64k ampdudensity 4
	-amsdutx amsdurx shortgi -ldpctx ldpcrx -uapsd vht vht40 vht80 vht160
	-vht80p80 wme roaming MANUAL
	parent interface: iwlwifi0
	media: IEEE 802.11 Wireless Ethernet VHT mode 11ac
	status: associated
	nd6 options=23<PERFORMNUD,ACCEPT_RTADV,AUTO_LINKLOCAL>
So you'll easily get the speed and performance you're hoping for.
Install
net/wifi-firmware-iwlwifi-kmod
after installation, perform fwget(8). Which will set your card up in
loader.conf(5) as required for your setup. Enjoy. :)

HTH

--Chris
> 
> Regards,
> meka

-- 
There is no such place as the internet
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