Thanks for the response, Christian. Here is what I am seeing now, using
ar9170usb from compat-wireless (2010_12_02):
usb 2-5: new high speed USB device using ehci_hcd and address 5
usb 2-5: reset high speed USB device using ehci_hcd and address 5
usbcore: registered new interface driver ar9170usb
arusb_lnx: module is from the staging directory, the quality is unknown,
you have been warned.
arusb - version 0.0.0.999
usbcore: registered new interface driver Otus
ath: EEPROM regdomain: 0x0
ath: EEPROM indicates default country code should be used
ath: doing EEPROM country->regdmn map search
ath: country maps to regdmn code: 0x3a
ath: Country alpha2 being used: US
ath: Regpair used: 0x3a
ieee80211 phy1: Selected rate control algorithm 'minstrel_ht'
Registered led device: ar9170-phy1::tx
Registered led device: ar9170-phy1::assoc
usb 2-5: Atheros AR9170 is registered as 'phy1'
# iw dev wlan0 link
Connected to 00:22:3f:07:42:f3 (on wlan0)
SSID: waddles
freq: 2412
RX: 2627575 bytes (16028 packets)
TX: 127342 bytes (600 packets)
signal: -62 dBm
tx bitrate: 54.0 MBit/s
# iw dev wlan1 link
Connected to 00:22:3f:07:42:f3 (on wlan1)
SSID: waddles
freq: 2412
RX: 6208 bytes (43 packets)
TX: 522 bytes (5 packets)
signal: -61 dBm
tx bitrate: 6.5 MBit/s MCS 0
# iw event -f
wlan1 (phy #1): deauth 00:22:3f:07:42:f3 -> 00:22:3f:8d:7b:05 reason 2:
Previous authentication no longer valid [frame: c0 00 40 01 00 22 3f 8d
7b 05 00 22 3f 07 42 f3 00 22 3f 07 42 f3 70 00 02 00]
wlan1 (phy #1): disconnected (by AP) reason: 2: Previous authentication
no longer valid
wlan1 (phy #1): scan started
wlan1 (phy #1): scan finished: 2412 2417 2422 2427 2432 2437 2442 2447
2452 2457 2462, ""
wlan1 (phy #1): auth 00:22:3f:07:42:f3 -> 00:22:3f:8d:7b:05 status: 0:
Successful [frame: b0 00 40 01 00 22 3f 8d 7b 05 00 22 3f 07 42 f3 00 22
3f 07 42 f3 00 00 00 00 02 00 00 00]
wlan1: new station 00:22:3f:07:42:f3
wlan1 (phy #1): assoc 00:22:3f:07:42:f3 -> 00:22:3f:8d:7b:05 status: 0:
Successful [frame: 10 00 40 01 00 22 3f 8d 7b 05 00 22 3f 07 42 f3 00 22
3f 07 42 f3 10 00 31 04 00 00 03 c0 01 08 82 84 8b 0c 12 96 18 24 32 04
30 48 60 6c dd 18 00 50 f2 02 01 01 82 00 03 a4 00 00 27 a4 00 00 42 43
5e 00 62 32 2f 00 dd 09 00 03 7f 01 01 00 00 ff 7f dd 0a 00 03 7f 04 01
00 00 00 00 00 dd 1e 00 90 4c 33 4c 10 1b ff ff 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 2d 1a 4c 10 1b ff ff 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 dd 1a 00 90 4c 34 01
00 1b 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 3d 16 01
00 1b 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00]
wlan1 (phy #1): connected to 00:22:3f:07:42:f3
wlan1 (phy #1): deauth 00:22:3f:07:42:f3 -> 00:22:3f:8d:7b:05 reason 2:
Previous authentication no longer valid [frame: c0 00 40 01 00 22 3f 8d
7b 05 00 22 3f 07 42 f3 00 22 3f 07 42 f3 70 00 02 00]
wlan1 (phy #1): disconnected (by AP) reason: 2: Previous authentication
no longer valid
wlan1 (phy #1): scan started
wlan1 (phy #1): scan finished: 2412 2417 2422 2427 2432 2437 2442 2447
2452 2457 2462, ""
wlan1 (phy #1): auth 00:22:3f:07:42:f3 -> 00:22:3f:8d:7b:05 status: 0:
Successful [frame: b0 00 40 01 00 22 3f 8d 7b 05 00 22 3f 07 42 f3 00 22
3f 07 42 f3 00 00 00 00 02 00 00 00]
wlan1: new station 00:22:3f:07:42:f3
wlan1 (phy #1): assoc 00:22:3f:07:42:f3 -> 00:22:3f:8d:7b:05 status: 0:
Successful [frame: 10 00 40 01 00 22 3f 8d 7b 05 00 22 3f 07 42 f3 00 22
3f 07 42 f3 10 00 31 04 00 00 03 c0 01 08 82 84 8b 0c 12 96 18 24 32 04
30 48 60 6c dd 18 00 50 f2 02 01 01 82 00 03 a4 00 00 27 a4 00 00 42 43
5e 00 62 32 2f 00 dd 09 00 03 7f 01 01 00 00 ff 7f dd 0a 00 03 7f 04 01
00 00 00 00 00 dd 1e 00 90 4c 33 4c 10 1b ff ff 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 2d 1a 4c 10 1b ff ff 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 dd 1a 00 90 4c 34 01
00 1b 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 3d 16 01
00 1b 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00]
wlan1 (phy #1): connected to 00:22:3f:07:42:f3
wlan1 (phy #1): deauth 00:22:3f:07:42:f3 -> 00:22:3f:8d:7b:05 reason 2:
Previous authentication no longer valid [frame: c0 00 40 01 00 22 3f 8d
7b 05 00 22 3f 07 42 f3 00 22 3f 07 42 f3 70 00 02 00]
wlan1 (phy #1): disconnected (by AP) reason: 2: Previous authentication
no longer valid
The wlan1 link is unusable. If I create a host route and ping the modem
over wlan1, all I get is 'Destination Host Unreachable' messages.
Note that wlan0 (the RTL8187) also has updated drivers but is stable
throughout this.
Any more suggestions?
Regards,
Wade.
On 07/12/10 00:14, Christian Lamparter wrote:
On Monday 06 December 2010 09:51:34 Wade Fitzpatrick wrote:
I have 2 USB wireless dongles:
- Generic Realtek RTL8187 using rtl8187 driver
- Netgear WN111v2 [Atheros AR9001-U(2)NG] using ar9170usb driver
Performance of the Netgear has degraded severely since updating to Arch
Linux kernel 2.6.36.1-3 from 2.6.35.4-2, also reported by
http://article.gmane.org/gmane.linux.kernel.wireless.general/59911
here's a list of all changes to ar9170usb during 2.6.35-2.6.36:
git log v2.6.35..v2.6.36 --format=oneline drivers/net/wireless/ath/ar9170/ ->
5db5584441c drivers/net/wireless: Restore upper case words in wiphy_<level> messages
a55427e8284 ar9170: add get_survey callback in order to get channel noise
c96c31e499b drivers/net/wireless: Use wiphy_<level>
I don't think any of these changes would cause such problems.
# iwconfig
Don't use iwconfig. iwconfig and other tools like iwlist, iwspy and
iwevent are obsolete and deprecated.
What you want is: "iw dev wlanX link" instead.
<http://wireless.kernel.org/en/users/Documentation/iw/replace-iwconfig>
<http://wireless.kernel.org/en/users/Documentation/iw>
wlan0 IEEE 802.11bgn ESSID:"waddles"
Mode:Managed Frequency:2.412 GHz Access Point: 00:22:3F:07:42:F3
Bit Rate=117 Mb/s Tx-Power=20 dBm
Link Quality=34/70 Signal level=-76 dBm
117 MBits/s, so ar9170usb? must be sending with 802.11n MCS rates.
wlan1 IEEE 802.11bg ESSID:"waddles"
Mode:Managed Frequency:2.412 GHz Access Point: 00:22:3F:07:42:F3
Bit Rate=36 Mb/s Tx-Power=20 dBm
Link Quality=44/70 Signal level=-66 dBm
where as rtl8187 only sticks to b/g rates.
for a fair comparison, I would recommend that both drivers should
stick to b/g. So you could either disable minstrel_ht, or patch
the driver (patch attached... just scroll down).
Or is it the other way round and ar9170usb is wlan1?
I have also tried using the carl9170 driver (2010_12_02) with
compat-wireless and carl9170-fw (1.9.1-1) but I found 'iwconfig' would
segfault when it tried to display ath0.
ath0? neither ar9170usb nor carl9170 (in fact no mac80211 driver)
names the interface "ath0". Only the original vendor driver "otus"
did that.
Regards,
Chr
---
diff --git a/drivers/net/wireless/ath/ar9170/main.c b/drivers/net/wireless/ath/ar9170/main.c
index 32bf79e..cb2d1a7 100644
--- a/drivers/net/wireless/ath/ar9170/main.c
+++ b/drivers/net/wireless/ath/ar9170/main.c
@@ -145,7 +145,7 @@ static struct ieee80211_channel ar9170_5ghz_chantable[] = {
#define AR9170_HT_CAP \
{ \
- .ht_supported = true, \
+ .ht_supported = false, \
.cap = IEEE80211_HT_CAP_MAX_AMSDU | \
IEEE80211_HT_CAP_SUP_WIDTH_20_40 | \
IEEE80211_HT_CAP_SGI_40 | \
--
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