[Bug 216923] iwi(4): cannot use channels 12 and 13 for DE/ETSI

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=216923

            Bug ID: 216923
           Summary: iwi(4): cannot use channels 12 and 13 for DE/ETSI
           Product: Base System
           Version: 11.0-STABLE
          Hardware: i386
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: wireless
          Assignee: freebsd-wireless at FreeBSD.org
          Reporter: ds at ukrhub.net
                CC: freebsd-i386 at FreeBSD.org
                CC: freebsd-i386 at FreeBSD.org

Hi, folks!

  It is still not possible to use channels 12 and 13 despite setting
country/regdomain to DE/ETSI (or any other which permits usage of channels 12,
13).

  I'm aware of bug #174722.  Applying recommendations from that PR yield no
desired results.  Comparing to that PR -- the driver is the same (iwi(4)),
however, two things differ: the wireless card is 'Intel(R) PRO/Wireless
2915ABG', and the system is FreeBSD 11.0-STABLE (r313440).

  How to reproduce:
Run the following (on a freshly booted system):
------------------------------------------------------------------------
d610# ifconfig wlan0
ifconfig: interface wlan0 does not exist

d610# ifconfig wlan0 create wlandev iwi0

d610# ifconfig wlan0 country DE ecm
d610# ifconfig wlan0
wlan0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 1500
        ether 00:16:6f:89:cc:bb
        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
        media: IEEE 802.11 Wireless Ethernet autoselect (autoselect)
        status: no carrier
        ssid "" channel 1 (2412 MHz 11b)
        regdomain ETSI country DE authmode OPEN privacy OFF txpower 30
        bmiss 24 scanvalid 60 wme bintval 0
        groups: wlan

d610# ifconfig wlan0 list regdomain
:regdomain ETSI country DE anywhere ecm
Channel   1 : 2412      MHz 11b          Channel   7 : 2442      MHz 11g
Channel   1 : 2412      MHz 11g          Channel   8 : 2447      MHz 11b
Channel   2 : 2417      MHz 11b          Channel   8 : 2447      MHz 11g
Channel   2 : 2417      MHz 11g          Channel   9 : 2452      MHz 11b
Channel   3 : 2422      MHz 11b          Channel   9 : 2452      MHz 11g
Channel   3 : 2422      MHz 11g          Channel  10 : 2457      MHz 11b
Channel   4 : 2427      MHz 11b          Channel  10 : 2457      MHz 11g
Channel   4 : 2427      MHz 11g          Channel  11 : 2462      MHz 11b
Channel   5 : 2432      MHz 11b          Channel  11 : 2462      MHz 11g
Channel   5 : 2432      MHz 11g          Channel  36 : 5180      MHz 11a
Channel   6 : 2437      MHz 11b          Channel  40 : 5200      MHz 11a
Channel   6 : 2437      MHz 11g          Channel  44 : 5220      MHz 11a
Channel   7 : 2442      MHz 11b          Channel  48 : 5240      MHz 11a
d610#
------------------------------------------------------------------------
  There are channels 12, 13 missing from the list, thus the command 'ifconfig
wlan0 channel 13' fails.

d610% uname -a
FreeBSD d610.synfin.me 11.0-STABLE FreeBSD 11.0-STABLE #0 r313440: Wed Feb  8
14:50:02 EET 2017    
ds at d610.synfin.me:/usr/local/obj/usr/local/src/sys/GENERIC  i386

d610% dmesg | grep iwi0
iwi0: <Intel(R) PRO/Wireless 2915ABG> mem 0xdfcff000-0xdfcfffff irq 17 at
device 3.0 on pci2

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