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Elemmire

SMCWUSB-N2 (driver ar9170usb) instable

Bonjour,

je viens d'acquérir une clé USB2 Wifi de marque SMC et de modele SMCWUSB-N2
C'est un matériel qui supporte les normes 802.11 b/g et n draft 2

premiere bonne surprise en la branchant, elle est reconnue et j'arrive a me connecter sans problème à ma freebox (v5)
cette clé wifi est sensée fonctionner jusqu'à 300Mb/s soit environ 35Mo/s ... donc je teste un transfert de fichier et la deception ... ca ne dépasse pas les 3Mo/s !!!

je regarde la config dans un terminal :

# iwconfig wlan0

wlan0     IEEE 802.11bgn  ESSID:"_free_"  
          Mode:Managed  Frequency:2.422 GHz  Access Point: 22:2A:C4:65:D5:D0   
          Bit Rate=1 Mb/s   Tx-Power=20 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=70/70  Signal level=-35 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

je remarque tout de suite le Bit rate à 1Mb/s ...
je force donc le Bit rate (qui étrangement ne veut pas monter au dessus de 54Mb/s):

# sudo iwconfig wlan0 rate 54
# iwconfig  wlan0 
wlan0     IEEE 802.11bgn  ESSID:"_free_"  
          Mode:Managed  Frequency:2.422 GHz  Access Point: 22:2A:C4:65:D5:D0   
          Bit Rate=54 Mb/s   Tx-Power=20 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=70/70  Signal level=-34 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

je teste le transfert de fichier mais pas mieux: des pointes à 3,5Mo/s et ensuite le débit s'écroule puis remonte ...
au finale j'arrive pas à dépasser 1Mo/s en moyenne

bref je sais plus quoi faire ... si quelqu'un a des idées il est bien venu !!!

pour compléter voici quelques informations sur ma config :

# lspci -nn
00:00.0 Host bridge [0600]: Intel Corporation Core Processor DRAM Controller [8086:0040] (rev 12)
00:02.0 VGA compatible controller [0300]: Intel Corporation Core Processor Integrated Graphics Controller [8086:0042] (rev 12)
00:16.0 Communication controller [0780]: Intel Corporation 5 Series/3400 Series Chipset HECI Controller [8086:3b64] (rev 06)
00:1a.0 USB Controller [0c03]: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller [8086:3b3c] (rev 06)
00:1b.0 Audio device [0403]: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio [8086:3b56] (rev 06)
00:1c.0 PCI bridge [0604]: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 1 [8086:3b42] (rev 06)
00:1c.2 PCI bridge [0604]: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 3 [8086:3b46] (rev 06)
00:1d.0 USB Controller [0c03]: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller [8086:3b34] (rev 06)
00:1e.0 PCI bridge [0604]: Intel Corporation 82801 PCI Bridge [8086:244e] (rev a6)
00:1f.0 ISA bridge [0601]: Intel Corporation 5 Series Chipset LPC Interface Controller [8086:3b06] (rev 06)
00:1f.2 IDE interface [0101]: Intel Corporation 5 Series/3400 Series Chipset 4 port SATA IDE Controller [8086:3b20] (rev 06)
00:1f.3 SMBus [0c05]: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller [8086:3b30] (rev 06)
00:1f.5 IDE interface [0101]: Intel Corporation 5 Series/3400 Series Chipset 2 port SATA IDE Controller [8086:3b26] (rev 06)
01:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller [10ec:8168] (rev 03)
02:00.0 IDE interface [0101]: JMicron Technology Corp. JMB368 IDE controller [197b:2368]

root@zeus:/home/matthieu# lsusb
Bus 002 Device 003: ID 0bda:0161 Realtek Semiconductor Corp. Mass Storage Device
Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 006: ID 0cf3:1002 Atheros Communications, Inc. TP-Link TL-WN821N v2 [Atheros AR9001U-(2)NG]
Bus 001 Device 004: ID 046d:c50c Logitech, Inc. Cordless Desktop S510
Bus 001 Device 003: ID 0471:0329 Philips (or NXP) SPC 900NC PC Camera / ORITE CCD Webcam(PC370R)
Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
root@zeus:/# lshw -C Network
  *-network               
       description: Ethernet interface
       product: RTL8111/8168B PCI Express Gigabit Ethernet controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:01:00.0
       logical name: eth0
       version: 03
       serial: 40:61:86:79:dd:58
       size: 10MB/s
       capacity: 1GB/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix vpd bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half latency=0 link=no multicast=yes port=MII speed=10MB/s
       resources: irq:42 ioport:d800(size=256) memory:fafff000-faffffff memory:faff8000-faffbfff memory:fbfe0000-fbffffff
  *-network:0 DISABLED
       description: Ethernet interface
       physical id: 2
       logical name: vboxnet0
       serial: 0a:00:27:00:00:00
       capabilities: ethernet physical
       configuration: broadcast=yes multicast=yes
  *-network:1
       description: Wireless interface
       physical id: 3
       bus info: usb@1:1.6
       logical name: wlan0
       serial: 00:22:2d:28:a4:16
       capabilities: ethernet physical wireless
       configuration: broadcast=yes driver=ar9170usb driverversion=2.6.35-22-generic firmware=N/A ip=192.168.5.11 link=yes multicast=yes wireless=IEEE 802.11bgn

root@zeus:/# iwconfig wlan0
wlan0     IEEE 802.11bgn  ESSID:"_free_"  
          Mode:Managed  Frequency:2.422 GHz  Access Point: 22:2A:C4:65:D5:D0   
          Bit Rate=1 Mb/s   Tx-Power=20 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=70/70  Signal level=-23 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0
root@zeus:/# uname -rm
2.6.35-22-generic x86_64

root@zeus:/# cat /etc/issue
Ubuntu 10.10 \n \l

# modinfo ar9170usb
filename:       /lib/modules/2.6.35-22-generic/kernel/drivers/net/wireless/ath/ar9170/ar9170usb.ko
firmware:       ar9170-2.fw
firmware:       ar9170-1.fw
firmware:       ar9170.fw
description:    Atheros AR9170 802.11n USB wireless
license:        GPL
author:         Christian Lamparter <chunkeey@web.de>
author:         Johannes Berg <johannes@sipsolutions.net>
srcversion:     4788334C6AB157DA3AE5931
alias:          usb:v1668p1200d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v057Cp8402d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v0409p0249d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v057Cp8401d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v04BBp093Fd*dc*dsc*dp*ic*isc*ip*
alias:          usb:v2019p5304d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v083ApF522d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v0CDEp0027d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v0CDEp0026d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v0CDEp0023d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v0586p3417d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1435p0326d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1435p0804d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v0ACEp1221d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v0846p9001d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v0846p9010d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v0846p9040d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v07D1p3A09d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v07D1p3C10d*dc*dsc*dp*ic*isc*ip*
alias:          usb:vCACEp0300d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v0CF3p1011d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v0CF3p1010d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v0CF3p1002d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v0CF3p1001d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v0CF3p9170d*dc*dsc*dp*ic*isc*ip*
depends:        mac80211,led-class,ath,cfg80211
vermagic:       2.6.35-22-generic SMP mod_unload modversions 
parm:           nohwcrypt:Disable hardware encryption. (bool)

(après une déconnexion/reconnexion du réseau avec netwok-manager)
# dmesg

[10408.788212] wlan0: deauthenticating from 22:2a:c4:65:d5:d0 by local choice (reason=3)
[10409.016093] cfg80211: All devices are disconnected, going to restore regulatory settings
[10409.016103] cfg80211: Restoring regulatory settings
[10409.016109] cfg80211: Calling CRDA to update world regulatory domain
[10409.021544] cfg80211: World regulatory domain updated:
[10409.021551]     (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[10409.021559]     (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[10409.021566]     (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[10409.021572]     (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[10409.021578]     (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[10409.021583]     (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[10414.122298] r8169 0000:01:00.0: eth0: link down
[10414.122835] ADDRCONF(NETDEV_UP): eth0: link is not ready
[10415.280114] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[10418.498376] wlan0: authenticate with 22:2a:c4:65:d5:d0 (try 1)
[10418.500050] wlan0: authenticated
[10418.500082] wlan0: associate with 22:2a:c4:65:d5:d0 (try 1)
[10418.508950] wlan0: RX AssocResp from 22:2a:c4:65:d5:d0 (capab=0x411 status=0 aid=1)
[10418.508955] wlan0: associated
[10418.554941] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[10423.077706] Loading iSCSI transport class v2.0-870.
[10423.101569] iscsi: registered transport (tcp)
[10423.137803] iscsi: registered transport (iser)

Dernière modification par Elemmire (Le 10/11/2010, à 00:01)

Elemmire

Re : SMCWUSB-N2 (driver ar9170usb) instable

J'ai trouvé une piste interessante : le nouveau driver carl9170
A tester ...
si certains ont déjà testé je veux bien un avis sur la question !

Elemmire

Re : SMCWUSB-N2 (driver ar9170usb) instable

Bon j'ai pas trop eu le temps de regarder comment installer le nouveau driver ... alors si une bonne âme passant par là peut m'aiguiller, ca me fera gagner pas mal de temps.