Testing 802.11n hostap on AR9220

[Steven Lawrance]

Greetings,

I thought I'd do some testing with a recently acquired AR9220 MiniPCI
card (a Compex WLM200NX) in AP mode.  It seemed to be fine for an SSH
session but locked up as soon as I tried some bigger transfers.  I'm not
sure what I should be prodding to get further details -- nothing
relevant turned up in dmesg.

At bootup:

ath0: <Atheros 9280> mem 0xe0080000-0xe008ffff irq 9 at device 12.0 on pci0
[ath] enabling AN_TOP2_FIXUP
ath0: [HT] enabling HT modes
ath0: [HT] 2 RX streams; 2 TX streams
ath0: AR9280 mac 128.2 RF5133 phy 13.0
ath1: <Atheros 5212> mem 0xe00c0000-0xe00cffff irq 11 at device 14.0 on pci0
ath1: AR5212 mac 5.9 RF2112 phy 4.3

# ifconfig wlan0
wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
    ether 00:80:48:72:63:5f
    inet 192.168.2.1 netmask 0xffffff00 broadcast 192.168.2.255
    inet6 fe80::280:48ff:fe72:635f%wlan0 prefixlen 64 scopeid 0xa 
    nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
    media: IEEE 802.11 Wireless Ethernet autoselect mode 11ng <hostap>
    status: running
    ssid testap channel 4 (2427 MHz 11g ht/20) bssid 00:80:48:72:63:5f
    regdomain ETSI2 country AT ecm authmode OPEN privacy OFF txpower 30
    scanvalid 60 protmode CTS ampdulimit 64k ampdudensity 8 shortgi wme
    burst dtimperiod 1 -dfs

Kernel config:

device          ath             
device          ath_hal         
device          ath_pci         
options         AH_SUPPORT_AR5416       
device          ath_rate_sample 
options         ATH_DIAGAPI
options         ATH_ENABLE_11N

The (Linux) client reported a bit rate of 108Mb/s.

cheers,
-- 
Steven Lawrance
stl at koffein.net