Atheros 9220 in 11a mode
Johann Hugo
jhugo at meraka.csir.co.za
Tue Jul 29 07:39:24 UTC 2014
Hi
Are there any special settings needed to operate a 11n adapter in 11a mode ?
e.g. dev.ath.0.rxantenna
I've managed to get it into 11a mode, but for some reason more that 80% of all
big packets are dropped, small packets works fine.
mesh-6c9a:~ # uname -a
FreeBSD mesh-6c9a 11.0-CURRENT FreeBSD 11.0-CURRENT #16 r268838M: Thu Jul 24
14:41:29 SAST 2014
jhay at dolphin.meraka.csir.co.za:/usr/obj/arm.armeb/snaps/arm/11-
tst/src/sys/SMALL-CAMBRIA arm
dmesg:
ath0: <Atheros 9220> irq 28 at device 1.0 on pci0
[ath] enabling AN_TOP2_FIXUP
ath0: [HT] enabling HT modes
ath0: [HT] 1 stream STBC receive enabled
ath0: [HT] 1 stream STBC transmit enabled
ath0: [HT] 2 RX streams; 2 TX streams
ath0: AR9220 mac 128.2 RF5133 phy 13.0
ath0: 2GHz radio: 0x0000; 5GHz radio: 0x00c0
mesh-6c9a:~ # ifconfig wlan0 channel 112:a/20
mesh-6c9a:~ # ifconfig wlan0
wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
ether 00:21:a4:35:6c:9a
inet6 fe80::221:a4ff:fe35:6c9a%wlan0 prefixlen 64 scopeid 0x7
inet6 fde4:7b85:9218:10:221:a4ff:fe35:6c9a prefixlen 64
inet6 fde4:7b85:9218:10:: prefixlen 64 anycast
ssid ptabb channel 112 (5560 MHz 11a ht/40-) bssid 02:02:ca:fe:12:34
regdomain NONE country ZA ecm authmode OPEN privacy OFF txpower 27
mcastrate 6 mgmtrate 6 scanvalid 60 ampdulimit 8k ampdudensity 8
shortgi wme burst
media: IEEE 802.11 Wireless Ethernet autoselect mode 11na <adhoc>
status: running
nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
mesh-6c9a:~ # ifconfig wlan0 mode 11a
mesh-6c9a:~ # ifconfig wlan0
wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
ether 00:21:a4:35:6c:9a
inet6 fe80::221:a4ff:fe35:6c9a%wlan0 prefixlen 64 scopeid 0x7
inet6 fde4:7b85:9218:10:221:a4ff:fe35:6c9a prefixlen 64
inet6 fde4:7b85:9218:10:: prefixlen 64 anycast
ssid ptabb channel 112 (5560 MHz 11a ht/40-) bssid 02:02:ca:fe:12:34
regdomain NONE country ZA ecm authmode OPEN privacy OFF txpower 27
mcastrate 6 mgmtrate 6 scanvalid 60 ampdulimit 8k ampdudensity 8
shortgi wme burst
media: IEEE 802.11 Wireless Ethernet autoselect mode 11na <adhoc>
status: running
nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
This one does the trick.
mesh-6c9a:~ # ifconfig wlan0 -ht
mesh-6c9a:~ # ifconfig -v wlan0
wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
ether 00:21:a4:35:6c:9a
inet6 fe80::221:a4ff:fe35:6c9a%wlan0 prefixlen 64 scopeid 0x7
inet6 fde4:7b85:9218:10:221:a4ff:fe35:6c9a prefixlen 64
inet6 fde4:7b85:9218:10:: prefixlen 64 anycast
groups: wlan
ssid ptabb channel 112 (5560 MHz 11a) bssid 02:02:ca:fe:12:34
regdomain NONE country ZA anywhere ecm authmode OPEN -wps -tsn
privacy OFF deftxkey UNDEF powersavemode OFF powersavesleep 100
txpower 27 txpowmax 50.0 -dotd rtsthreshold 2346 fragthreshold 2346
bmiss 7
11a ucast NONE mgmt 6 Mb/s mcast 6 Mb/s maxretry 6
11b ucast NONE mgmt 1 Mb/s mcast 1 Mb/s maxretry 6
11g ucast NONE mgmt 1 Mb/s mcast 1 Mb/s maxretry 6
turboA ucast NONE mgmt 6 Mb/s mcast 6 Mb/s maxretry 6
turboG ucast NONE mgmt 1 Mb/s mcast 1 Mb/s maxretry 6
sturbo ucast NONE mgmt 6 Mb/s mcast 6 Mb/s maxretry 6
11na ucast NONE mgmt 12 MCS mcast 12 MCS maxretry 6
11ng ucast NONE mgmt 2 MCS mcast 2 MCS maxretry 6
half ucast NONE mgmt 3 Mb/s mcast 3 Mb/s maxretry 6
quarter ucast NONE mgmt 1 Mb/s mcast 1 Mb/s maxretry 6
scanvalid 60 -bgscan bgscanintvl 300 bgscanidle 250
roam:11a rssi 7dBm rate 12 Mb/s
roam:11b rssi 7dBm rate 1 Mb/s
roam:11g rssi 7dBm rate 5 Mb/s
roam:turboA rssi 7dBm rate 12 Mb/s
roam:turboG rssi 7dBm rate 12 Mb/s
roam:sturbo rssi 7dBm rate 12 Mb/s
roam:11na rssi 7dBm MCS 1
roam:11ng rssi 7dBm MCS 1
roam:half rssi 7dBm rate 6 Mb/s
roam:quarter rssi 7dBm rate 3 Mb/s
-pureg protmode CTS -ht htcompat ampdu ampdulimit 8k ampdudensity 8
amsdu shortgi htprotmode RTSCTS -puren -smps -rifs wme burst -dwds
roaming AUTO bintval 100
AC_BE cwmin 4 cwmax 10 aifs 3 txopLimit 0 -acm ack
cwmin 4 cwmax 10 aifs 3 txopLimit 0 -acm
AC_BK cwmin 4 cwmax 10 aifs 7 txopLimit 0 -acm ack
cwmin 4 cwmax 10 aifs 7 txopLimit 0 -acm
AC_VI cwmin 3 cwmax 4 aifs 2 txopLimit 94 -acm ack
cwmin 3 cwmax 4 aifs 2 txopLimit 94 -acm
AC_VO cwmin 2 cwmax 3 aifs 2 txopLimit 47 -acm ack
cwmin 2 cwmax 3 aifs 2 txopLimit 47 -acm
media: IEEE 802.11 Wireless Ethernet autoselect mode 11a <adhoc>
status: running
nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
mesh-6c9a:~ # ping6 -i 0.1 -s 1450 fe80::221:a4ff:fe31:2a55%wlan0
PING6(1498=40+8+1450 bytes) fe80::221:a4ff:fe35:6c9a%wlan0 -->
fe80::221:a4ff:fe31:2a55%wlan0
1458 bytes from fe80::221:a4ff:fe31:2a55%wlan0, icmp_seq=4 hlim=64 time=5.141
ms
1458 bytes from fe80::221:a4ff:fe31:2a55%wlan0, icmp_seq=9 hlim=64 time=7.357
ms
1458 bytes from fe80::221:a4ff:fe31:2a55%wlan0, icmp_seq=14 hlim=64 time=6.035
ms
1458 bytes from fe80::221:a4ff:fe31:2a55%wlan0, icmp_seq=92 hlim=64
time=10.437 ms
1458 bytes from fe80::221:a4ff:fe31:2a55%wlan0, icmp_seq=102 hlim=64
time=17.306 ms
1458 bytes from fe80::221:a4ff:fe31:2a55%wlan0, icmp_seq=103 hlim=64
time=7.724 ms
1458 bytes from fe80::221:a4ff:fe31:2a55%wlan0, icmp_seq=104 hlim=64
time=13.918 ms
1458 bytes from fe80::221:a4ff:fe31:2a55%wlan0, icmp_seq=202 hlim=64
time=7.162 ms
1458 bytes from fe80::221:a4ff:fe31:2a55%wlan0, icmp_seq=206 hlim=64
time=9.092 ms
^C
--- fe80::221:a4ff:fe31:2a55%wlan0 ping6 statistics ---
209 packets transmitted, 9 packets received, 95.7% packet loss
round-trip min/avg/max/std-dev = 5.141/9.352/17.306/3.735 ms
B.t.w the same setup works fine if I swap the 11n adapter with a 11a adapter
(Atheros 5413 chipset)
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