Bug 13141
| Summary: | AR5008/DWA-552 - Very slow | ||
|---|---|---|---|
| Product: | Drivers | Reporter: | paragw (parag.lkml) |
| Component: | network-wireless | Assignee: | Senthil Balasubramanian (senthilkumar) |
| Status: | RESOLVED OBSOLETE | ||
| Severity: | normal | CC: | alan, ath9k-devel, jgm11, jogeedaklown, lameventanas, lkmlist, mcgrof, senthilkumar, stbaker81, sujith, tomasz_czaus |
| Priority: | P1 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Kernel Version: | 2.6.31 | Subsystem: | |
| Regression: | No | Bisected commit-id: | |
| Attachments: |
dmesg output
patches for tx hang |
||
|
Description
paragw
2009-04-20 19:47:14 UTC
lspci -v
01:04.0 Network controller: Atheros Communications Inc. AR5008 Wireless Network Adapter (rev 01)
Subsystem: D-Link System Inc Device 3a6d
Flags: bus master, 66MHz, medium devsel, latency 168, IRQ 16
Memory at f0200000 (32-bit, non-prefetchable) [size=64K]
Capabilities: [40] #80 [0000]
Capabilities: [80] #00 [0000]
Kernel driver in use: ath9k
Kernel modules: ath9k
Parag, if you disable WPA does performance increase? Also, can you provide your AP configuration details? Is it using 11n? If so, can you disable 11n and see how it performs without 11n? Regardless this issue will be addressed, the details above may help though. Also can you please try latest wireless-testing? If that's too much to ask how about testing using compat-wireless? http://wireless.kernel.org/en/users/Download (In reply to comment #2) > Parag, if you disable WPA does performance increase? > > Also, can you provide your AP configuration details? Is it using 11n? If so, > can you disable 11n and see how it performs without 11n? > > Regardless this issue will be addressed, the details above may help though. Apologize for the late response - workload thing.. First the AP configuration details - I have tried with 2 APs with similar results (poor throughput) - a) Apple Airport Express N and b) Linksys WRT310N running DD-WRT. Both were configured in Mixed mode (N and G) - my network only has N and G devices. Next the test setup - I am copying a 450Mb file over SSH. Receiving machine is this xw6600 workstation with this Atheros card in question (PCI mind you), sending machine is a MacBook Pro laptop with N connection (130Mbit) to the AP. For comparison sakes I have another netbook running Windows which is also receiving the same file but it is connected over G (it only has a G adapter) to the same AP. All machines are in same room on the same desk - the AP is in next room. I tested G only, N-only and Mixed modes - with and without Encryption (WPA2/AES). Without needing to go into detailed results - they were equally slow for the Linux machine - I got a worse of around 195 KB/s and best of about 350KB/s - way too slow even for G connection. In contrast the poor Netbook did a consistent 720KB/s+ - often reaching 900KB/s. I am running latest git - will try compat-wireless shortly. Can you please get us the dmesg log with debug mask 0x600? 1) dmesg -c 2) sudo modprobe ath9k debug=0x600 3) <associate with your AP> 4) ping <AP> & copy your dmesg and attach it to this bug report. Also install iw and add the output of 'iw event -t' http://wireless.kernel.org/en/users/Documentation/iw Neither the distro ath9k nor the compat-wireless ath9k seems to know about the debug parameter - do I need to enable any special KConfig options? parag@parag-desktop:~/iw-0.9.14$ sudo ./iw event -t [sudo] password for parag: 1245000999.291924: wlan0 (phy #0): scan finished 1245000999.303256: wlan0 (phy #0): auth 00:1e:e5:6a:2c:c2 -> 00:21:91:fa:f1:29 status: 0: Successful 1245000999.311800: wlan0 (phy #0): assoc 00:1e:e5:6a:2c:c2 -> 00:21:91:fa:f1:29 status: 0: Successful 1245001009.643928: wlan0 (phy #0): scan finished Yes you need to enable CONFIG_ATH9K_DEBUG to get debugging information. Please provide feedback - we want to help you. parag@parag-desktop:~/iw-0.9.14$ sudo ./iw event -t 1245168893.651016: wlan0 (phy #0): scan finished 1245168893.663434: wlan0 (phy #0): auth 00:1e:e5:6a:2c:c2 -> 00:21:91:fa:f1:29 status: 0: Successful 1245168893.671962: wlan0 (phy #0): assoc 00:1e:e5:6a:2c:c2 -> 00:21:91:fa:f1:29 status: 0: Successful dmesg output after modprobe ath9k debug=0x600 and associating with AP is attached. Created attachment 21938 [details]
dmesg output
Output is after specifying debug=0x600 to ath9k and associating with AP.
After ping 192.168.1.1 - -------------- [ 2291.444532] ath9k: Set HW RX filter: 0x10 [ 2291.476008] ath9k: Set channel: 2412 MHz [ 2291.476012] ath9k: tx chmask: 1, rx chmask: 1 [ 2291.476107] ath9k: (2447 MHz) -> (2412 MHz), chanwidth: 0 [ 2291.534092] ath9k: Set channel: 2417 MHz [ 2291.534094] ath9k: tx chmask: 1, rx chmask: 1 [ 2291.534188] ath9k: (2412 MHz) -> (2417 MHz), chanwidth: 0 [ 2291.588006] ath9k: Set channel: 2422 MHz [ 2291.588008] ath9k: tx chmask: 1, rx chmask: 1 [ 2291.588102] ath9k: (2417 MHz) -> (2422 MHz), chanwidth: 0 [ 2291.644008] ath9k: Set channel: 2427 MHz [ 2291.644011] ath9k: tx chmask: 1, rx chmask: 1 [ 2291.644104] ath9k: (2422 MHz) -> (2427 MHz), chanwidth: 0 [ 2291.700010] ath9k: Set channel: 2432 MHz [ 2291.700012] ath9k: tx chmask: 1, rx chmask: 1 [ 2291.700105] ath9k: (2427 MHz) -> (2432 MHz), chanwidth: 0 [ 2291.756008] ath9k: Set channel: 2437 MHz [ 2291.756011] ath9k: tx chmask: 1, rx chmask: 1 [ 2291.756106] ath9k: (2432 MHz) -> (2437 MHz), chanwidth: 0 [ 2291.816006] ath9k: Set channel: 2442 MHz [ 2291.816009] ath9k: tx chmask: 1, rx chmask: 1 [ 2291.816102] ath9k: (2437 MHz) -> (2442 MHz), chanwidth: 0 [ 2291.876006] ath9k: Set channel: 2447 MHz [ 2291.876009] ath9k: tx chmask: 1, rx chmask: 1 [ 2291.876102] ath9k: (2442 MHz) -> (2447 MHz), chanwidth: 0 [ 2291.936006] ath9k: Set channel: 2452 MHz [ 2291.936008] ath9k: tx chmask: 1, rx chmask: 1 [ 2291.936102] ath9k: (2447 MHz) -> (2452 MHz), chanwidth: 0 [ 2291.996007] ath9k: Set channel: 2457 MHz [ 2291.996009] ath9k: tx chmask: 1, rx chmask: 1 [ 2291.996103] ath9k: (2452 MHz) -> (2457 MHz), chanwidth: 0 [ 2292.056006] ath9k: Set channel: 2462 MHz [ 2292.056009] ath9k: tx chmask: 1, rx chmask: 1 [ 2292.056102] ath9k: (2457 MHz) -> (2462 MHz), chanwidth: 0 [ 2292.116031] ath9k: Set channel: 2447 MHz [ 2292.116034] ath9k: tx chmask: 7, rx chmask: 5 [ 2292.116129] ath9k: (2462 MHz) -> (2447 MHz), chanwidth: 0 [ 2292.117098] ath9k: Set HW RX filter: 0x0 Created attachment 21953 [details]
patches for tx hang
Can you please try the attached two patches and give your feed back?. These patches will apply on top of latest wireless-testing.
Need user info Hello everybody,
I'll jump on this one...
I got a D-Link "DWA-556 Xtreme N PCI Express Desktop Adapter" which shows more or less the same behavior..
01:00.0 Network controller: Atheros Communications Inc. AR5008 Wireless Network Adapter (rev 01)
01:00.0 Network controller: Atheros Communications Inc. AR5008 Wireless Network Adapter (rev 01)
Subsystem: D-Link System Inc Device 3a70
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 28
Region 0: Memory at dfff0000 (64-bit, non-prefetchable) [size=64K]
Capabilities: [40] Power Management version 2
Flags: PMEClk- DSI- D1+ D2- AuxCurrent=375mA PME(D0+,D1+,D2-,D3hot+,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [50] Message Signalled Interrupts: Mask- 64bit- Count=1/1 Enable-
Address: 00000000 Data: 0000
Capabilities: [60] Express (v1) Legacy Endpoint, MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <128ns, L1 <2us
ExtTag- AttnBtn- AttnInd- PwrInd- RBE- FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop-
MaxPayload 128 bytes, MaxReadReq 512 bytes
DevSta: CorrErr- UncorrErr+ FatalErr- UnsuppReq+ AuxPwr- TransPend-
LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0 <512ns, L1 <64us
ClockPM- Suprise- LLActRep- BwNot-
LnkCtl: ASPM Disabled; RCB 128 bytes Disabled- Retrain- CommClk-
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
Capabilities: [90] MSI-X: Enable- Mask- TabSize=1
Vector table: BAR=0 offset=00000000
PBA: BAR=0 offset=00000000
Capabilities: [100] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq+ ACSVoil-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSVoil-
UESvrt: DLP+ SDES- TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSVoil-
CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
AERCap: First Error Pointer: 14, GenCap+ CGenEn- ChkCap+ ChkEn-
Capabilities: [140] Virtual Channel <?>
Kernel driver in use: ath9k
Kernel modules: ath9k
I am testing with linux-2.6.31-rc5.
What I observe:
It takes uncountable tries to connect to my AP (Fritz!Box 7270 [configured for n/g), I'll post an excerp from /var/log/messages below:
Aug 6 00:58:34 freax [ 213.840275] ath9k 0000:01:00.0: PCI INT A -> GSI 28 (level, low) -> IRQ 28
Aug 6 00:58:34 freax [ 213.840289] ath9k 0000:01:00.0: setting latency timer to 64
Aug 6 00:58:35 freax [ 213.975157] ath: EEPROM regdomain: 0x30
Aug 6 00:58:35 freax [ 213.975160] ath: EEPROM indicates we should expect a direct regpair map
Aug 6 00:58:35 freax [ 213.975163] ath: Country alpha2 being used: AM
Aug 6 00:58:35 freax [ 213.975166] ath: Regpair used: 0x30
Aug 6 00:58:35 freax [ 213.976357] phy1: Selected rate control algorithm 'ath9k_rate_control'
Aug 6 00:58:35 freax [ 213.977172] cfg80211: Calling CRDA for country: AM
Aug 6 00:58:35 freax [ 213.977201] Registered led device: ath9k-phy1::radio
Aug 6 00:58:35 freax [ 213.977219] Registered led device: ath9k-phy1::assoc
Aug 6 00:58:35 freax [ 213.977235] Registered led device: ath9k-phy1::tx
Aug 6 00:58:35 freax [ 213.977254] Registered led device: ath9k-phy1::rx
Aug 6 00:58:35 freax [ 213.977265] phy1: Atheros AR5418 MAC/BB Rev:2 AR2133 RF Rev:81: mem=0xffffc90013ba0000, irq=28
Aug 6 00:58:35 freax [ 214.072483] ADDRCONF(NETDEV_UP): wlan0: link is not ready
Aug 6 00:58:35 freax [ 214.943470] wlan0: authenticate with AP 00:1f:3f:13:5d:81
Aug 6 00:58:35 freax [ 214.946705] wlan0: authenticated
Aug 6 00:58:35 freax [ 214.946709] wlan0: associate with AP 00:1f:3f:13:5d:81
Aug 6 00:58:35 freax [ 214.950569] wlan0: RX AssocResp from 00:1f:3f:13:5d:81 (capab=0x431 status=0 aid=3)
Aug 6 00:58:35 freax [ 214.950574] wlan0: associated
Aug 6 00:58:35 freax [ 214.956424] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
Aug 6 00:58:39 freax [ 217.985039] wlan0: deauthenticated (Reason: 2)
Aug 6 00:58:40 freax [ 218.984003] wlan0: direct probe to AP 00:1f:3f:13:5d:81 try 1
Aug 6 00:58:40 freax [ 218.987171] wlan0 direct probe responded
Aug 6 00:58:40 freax [ 218.987176] wlan0: authenticate with AP 00:1f:3f:13:5d:81
Aug 6 00:58:40 freax [ 218.990573] wlan0: authenticated
Aug 6 00:58:40 freax [ 218.990577] wlan0: associate with AP 00:1f:3f:13:5d:81
Aug 6 00:58:40 freax [ 218.994428] wlan0: RX ReassocResp from 00:1f:3f:3:5d:81 (capab=0x431 status=0 aid=3)
Aug 6 00:58:40 freax [ 218.994432] wlan0: associated
Aug 6 00:58:43 freax [ 222.024845] wlan0: deauthenticated (Reason: 2)
Aug 6 00:58:44 freax [ 223.024489] wlan0: direct probe to AP 00:1f:3f:13:5d:81 try 1
Aug 6 00:58:44 freax [ 223.027659] wlan0 direct probe responded
Aug 6 00:58:44 freax [ 223.027663] wlan0: authenticate with AP 00:1f:3f:13:5d:81
Aug 6 00:58:44 freax [ 223.030993] wlan0: authenticated
Aug 6 00:58:44 freax [ 223.030997] wlan0: associate with AP 00:1f:3f:13:5d:81
Aug 6 00:58:44 freax [ 223.034841] wlan0: RX ReassocResp from 00:1f:3f:13:5d:81 (capab=0x431 status=0 aid=3)
Aug 6 00:58:44 freax [ 223.034845] wlan0: associated
Aug 6 00:58:46 freax [ 225.702467] wlan0: no IPv6 routers present
Aug 6 00:58:47 freax [ 226.071583] wlan0: deauthenticated (Reason: 2)
Aug 6 00:58:48 freax [ 227.070974] wlan0: direct probe to AP 00:1f:3f:13:5d:81 try 1
Aug 6 00:58:48 freax [ 227.074145] wlan0 direct probe responded
You can find a comlete log here:
http://daten-transport.de/?id=zE6uGGSXVbg5
If it manages to stay associate and retrieve a IP via DHCP the speed is more than poor... My AP reports a connection with 11 MBit/s (WPA2, WMM).
Let me know if you need more information.
I found my way to this bug via the following mail (List of pending ath9k bugs):
http://osdir.com/ml/linux-wireless/2009-06/msg00059.html
Greetings
Bjoern
I have the same problem with a DWA-556 using Atheros chipset. I'm using ath9k from kernel 2.6.30.5, and I get around 100 Kbps speed. If you need any information from my system or hardware, I'm more than happy to provide it. I have the same issue, I filed a bug: https://bugzilla.redhat.com/show_bug.cgi?id=520535 No action on the above to date. I recently installed the latest Compat Wireless: http://www.orbit-lab.org/kernel/compat-wireless-2.6-stable/v2.6.30/compat-wireless-2.6.30.tar.bz2 Which is worse than before in that it associates and shortly after disconnects and refuses to re-associate. The kernel I'm using is 2.6.30.8-64 FC11 I586 The card is not usable in this state. I'm running with my old card using ath5k without issue. Can you try : http://wireless.kernel.org/en/users/Download/stable the newer 2.6.32 based release I can confirm this behaviour on my DWA-556. Please find my logs below: http://www.usaupload.net/d/eqp6ckvi8q9 - full debug output http://pastebin.com/Z80xq0Ba = dmesg log Card: DWA-556 PCI-Express H/W Ver: A1 F/W Ver: 2.11 OS: Archlinux Kernel: 2.6.32 Compat-wireless: 07-02-10 Regards, Jack. With stock kernel 2.6.33 (no compat-wireless) I'm getting between 10 and 16.5 Mbits/sec (reported by iperf) between an Intel 4965AGN and my DWA-556 AR5008 card. I think its not using 802.11N, but 802.11G (I have never been able to use 802.11N even when both cards support it). So this is an improvement, but still no 802.11N. I have the same performance issue with my TP-Link TL-WN951N (kernel 2.6.34, hostapd 0.6.9). My average performance is ~8-15Mbs, one time I saw 25Mbs. It looks like the card works in G mode.
hostapd.conf:
interface=wlan0
driver=nl80211
ieee80211n=1
ht_capab=[HT40-][SHORT-GI-40][DSSS_CCK-40][AMPDU]
hw_mode=g
channel=5
wme_enabled=1
wme_ac_bk_cwmin=4
wme_ac_bk_cwmax=10
wme_ac_bk_aifs=7
wme_ac_bk_txop_limit=0
wme_ac_bk_acm=0
wme_ac_be_aifs=3
wme_ac_be_cwmin=4
wme_ac_be_cwmax=10
wme_ac_be_txop_limit=0
wme_ac_be_acm=0
wme_ac_vi_aifs=2
wme_ac_vi_cwmin=3
wme_ac_vi_cwmax=4
wme_ac_vi_txop_limit=94
wme_ac_vi_acm=0
wme_ac_vo_aifs=2
wme_ac_vo_cwmin=2
wme_ac_vo_cwmax=3
wme_ac_vo_txop_limit=47
wme_ac_vo_acm=0
logger_syslog=-1
logger_syslog_level=0
logger_stdout=-1
logger_stdout_level=1
dump_file=/tmp/hostapd.dump
ctrl_interface=/var/run/hostapd
ctrl_interface_group=0
ssid=HOME_WiFi
macaddr_acl=1
accept_mac_file=/etc/hostapd/hostapd.accept
deny_mac_file=/etc/hostapd/hostapd.deny
auth_algs=1
wpa=2
wpa_passphrase=xxxxxxxxxxxxxx
wpa_key_mgmt=WPA-PSK
wpa_pairwise=CCMP
# iw wlan0 info
Interface wlan0
ifindex 25
type AP
# iw list
Wiphy phy1
Band 1:
Capabilities: 0x104e
HT20/HT40
SM Power Save disabled
RX HT40 SGI
No RX STBC
Max AMSDU length: 7935 bytes
DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: 8 usec (0x06)
HT TX/RX MCS rate indexes supported: 0-15
Frequencies:
* 2412 MHz [1] (20.0 dBm)
* 2417 MHz [2] (20.0 dBm)
* 2422 MHz [3] (20.0 dBm)
* 2427 MHz [4] (20.0 dBm)
* 2432 MHz [5] (20.0 dBm)
* 2437 MHz [6] (20.0 dBm)
* 2442 MHz [7] (20.0 dBm)
* 2447 MHz [8] (20.0 dBm)
* 2452 MHz [9] (20.0 dBm)
* 2457 MHz [10] (20.0 dBm)
* 2462 MHz [11] (20.0 dBm)
* 2467 MHz [12] (disabled)
* 2472 MHz [13] (disabled)
* 2484 MHz [14] (disabled)
Bitrates (non-HT):
* 1.0 Mbps
* 2.0 Mbps (short preamble supported)
* 5.5 Mbps (short preamble supported)
* 11.0 Mbps (short preamble supported)
* 6.0 Mbps
* 9.0 Mbps
* 12.0 Mbps
* 18.0 Mbps
* 24.0 Mbps
* 36.0 Mbps
* 48.0 Mbps
* 54.0 Mbps
max # scan SSIDs: 4
Supported interface modes:
* IBSS
* managed
* AP
* AP/VLAN
* monitor
* mesh point
Supported commands:
* new_interface
* set_interface
* new_key
* new_beacon
* new_station
* set_bss
* authenticate
* associate
* deauthenticate
* disassociate
* join_ibss
* Unknown command (55)
* Unknown command (57)
* Unknown command (59)
* set_wiphy_netns
* connect
* disconnect
# lspci -vv
02:01.0 Network controller: Atheros Communications, Inc. AR5416 802.11a/b/g/n Wireless PCI Adapter (rev 01)
Subsystem: Atheros Communications, Inc. Device 3071
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 168, Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 21
Region 0: Memory at e8020000 (32-bit, non-prefetchable) [size=64K]
Capabilities: [40] #80 [0000]
Kernel driver in use: ath9k
Kernel modules: ath9k
If you need more data please let me know.
Regards,
Tomek
I have a AR9285 Wireless Network adapter and I have the exact same problems as well. I am using the ath9k module running on a 2.6.31.12 kernel on OpenSUSE 11.2. Using the latest drivers made the issues worse. If you need more info, let me know. Thanks! Jose If this is still seen on modern kernels then please re-open/update |