How to activate 802.11n on Intel Dual Band Wireless AC 8260?

[Alexandr Krivulya]

Hi,
IIRC we do not have 802.11n support for iwm now.

08.06.20 09:10, Páli Gábor пишет:
> Hi there,
>
> I have just got a new machine with an Intel Wireless 8260 chip inside,
> but the highest performance I could get from it is 54 Mpbs.
>
> ~~~~
> $ dmesg | fgrep iwm
> iwm0: <Intel(R) Dual Band Wireless AC 8260> mem 0xe1000000-0xe1001fff
> at device 0.0 on pci2
> iwm0: hw rev 0x200, fw ver 22.361476.0, address XX:XX:XX:XX:XX:XX
> $ pciconf -lv pci0:3:0:0
> iwm0 at pci0:3:0:0:        class=0x028000 card=0x00108086 chip=0x24f38086
> rev=0x3a hdr=0x00
>      vendor     = 'Intel Corporation'
>      device     = 'Wireless 8260'
>      class      = network
> $ ifconfig -m wlan0
> wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
>          ether XX:XX:XX:XX:XX:XX
>          inet X.X.X.X netmask XXXXXXX broadcast X.X.X.X
>          groups: wlan
>          ssid XXXXXXX channel XX (XXXX MHz 11a) bssid XX:XX:XX:XX:XX:XX
>          regdomain ETSI country HU authmode WPA2/802.11i privacy ON
>          deftxkey UNDEF AES-CCM 2:128-bit AES-CCM 3:128-bit txpower 17 bmiss 10
>          mcastrate 6 mgmtrate 6 scanvalid 60 wme roaming MANUAL
>          media: IEEE 802.11 Wireless Ethernet OFDM/54Mbps mode 11a
>          status: associated
>          supported media:
>                  media DS/11Mbps mode autoselect
>                  media DS/5.5Mbps mode autoselect
>                  media DS/2Mbps mode autoselect
>                  media DS/1Mbps mode autoselect
>                  media OFDM/54Mbps mode autoselect
>                  media OFDM/48Mbps mode autoselect
>                  media OFDM/36Mbps mode autoselect
>                  media OFDM/24Mbps mode autoselect
>                  media OFDM/18Mbps mode autoselect
>                  media OFDM/12Mbps mode autoselect
>                  media OFDM/9Mbps mode autoselect
>                  media OFDM/6Mbps mode autoselect
>                  media OFDM/54Mbps mode 11g
>                  media OFDM/48Mbps mode 11g
>                  media OFDM/36Mbps mode 11g
>                  media OFDM/24Mbps mode 11g
>                  media OFDM/18Mbps mode 11g
>                  media OFDM/12Mbps mode 11g
>                  media OFDM/9Mbps mode 11g
>                  media OFDM/6Mbps mode 11g
>                  media DS/11Mbps mode 11g
>                  media DS/5.5Mbps mode 11g
>                  media DS/2Mbps mode 11g
>                  media DS/1Mbps mode 11g
>                  media autoselect mode 11g
>                  media DS/11Mbps mode 11b
>                  media DS/5.5Mbps mode 11b
>                  media DS/2Mbps mode 11b
>                  media DS/1Mbps mode 11b
>                  media autoselect mode 11b
>                  media OFDM/54Mbps mode 11a
>                  media OFDM/48Mbps mode 11a
>                  media OFDM/36Mbps mode 11a
>                  media OFDM/24Mbps mode 11a
>                  media OFDM/18Mbps mode 11a
>                  media OFDM/12Mbps mode 11a
>                  media OFDM/9Mbps mode 11a
>                  media OFDM/6Mbps mode 11a
>                  media autoselect mode 11a
>                  media autoselect mode autoselect
>          nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
> ~~~~
>
> According to the iwm(4) man page, 802.11ac is supported for this
> driver, but unfortunately the wireless router I use does not support
> that, but 802.11a/b/g/n only.  The tech specs for Intel Wireless 8260
> [1] tell me that 802.11n is supported by the hardware.
>
> Is there a way to use this card under FreeBSD in 802.11n mode?  I
> could not find any documentation on that.
>
> Thanks,
> Gábor
>
> [1] https://www.intel.com/content/dam/www/public/us/en/documents/product-briefs/dual-band-wireless-ac-8260-brief-v2.pdf
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