[Madwifi-devel] different txpower tables on two "virtual identical" CM9 cards
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[Madwifi-devel] different txpower tables on two "virtual identical" CM9 cards
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From: Arnd H. <han...@i4...> - 2007-01-30 16:19:38
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Hi all,
we are seeing the following problem:
we have two cards on identical hardware with identical configuration
(software, hardware, frequency etc.) but two different power tables (see
below). However the regdomain and countrycode proc entries return 0 on
both machines.
We would like to setup txpower on both machines to the same value (i.e.
both to 25 mW), but this is not possible at the moment.
Is it possible to override those txpower tables, or are they generated
in HAL / Hardware ?
Any other idea how to debug this?
Thanks in advance
Arnd Hannemann
mrouter5:~ # iwlist ath0 txpower
ath0 8 available transmit-powers :
0 dBm (1 mW)
8 dBm (6 mW)
10 dBm (10 mW)
12 dBm (15 mW)
14 dBm (25 mW)
16 dBm (39 mW)
18 dBm (63 mW)
20 dBm (100 mW)
Current Tx-Power=14 dBm (25 mW)
mrouter6:~ # iwlist ath0 txpower
ath0 8 available transmit-powers :
0 dBm (1 mW)
7 dBm (5 mW)
9 dBm (7 mW)
11 dBm (12 mW)
13 dBm (19 mW)
15 dBm (31 mW)
17 dBm (50 mW)
19 dBm (79 mW)
Current Tx-Power:13 dBm (19 mW)
mrouter5:~ # cat /proc/sys/dev/wifi0/countrycode
0
mrouter5:~ # cat /proc/sys/dev/wifi0/regdomain
0
mrouter6:~ # cat /proc/sys/dev/wifi0/countrycode
0
mrouter6:~ # cat /proc/sys/dev/wifi0/regdomain
0
mrouter5:~ # lspci -vvv -d 168c:0013
0000:00:0d.0 Ethernet controller: Atheros Communications, Inc. AR5212
802.11abg NIC (rev 01)
Subsystem: Wistron NeWeb Corp.: Unknown device 1012
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR+ FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 168 (2500ns min, 7000ns max), Cache Line Size: 0x08 (32
bytes)
Interrupt: pin A routed to IRQ 12
Region 0: Memory at 80000000 (32-bit, non-prefetchable) [size=64K]
Capabilities: [44] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=2 PME-
mrouter6:~ # lspci -vvv -d 168c:0013
0000:00:0d.0 Ethernet controller: Atheros Communications, Inc. AR5212
802.11abg NIC (rev 01)
Subsystem: Wistron NeWeb Corp.: Unknown device 1012
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR+ FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 168 (2500ns min, 7000ns max), Cache Line Size: 0x08 (32
bytes)
Interrupt: pin A routed to IRQ 12
Region 0: Memory at 80000000 (32-bit, non-prefetchable) [size=64K]
Capabilities: [44] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=2 PME-
dmesg of mrouter5:
ath_hal: module license 'Proprietary' taints kernel.
ath_hal: 0.9.17.2 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413, RF5413)
wlan: 0.8.4.2 (svn r778)
ath_rate_sample: 1.2 (svn r778)
ath_pci: 0.9.4.5 (svn r778)
wifi0: 11a rates: 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps
wifi0: 11b rates: 1Mbps 2Mbps 5.5Mbps 11Mbps
wifi0: 11g rates: 1Mbps 2Mbps 5.5Mbps 11Mbps 6Mbps 9Mbps 12Mbps 18Mbps
24Mbps 36Mbps 48Mbps 54Mbps
wifi0: turboA rates: 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps
wifi0: turboG rates: 6Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps
wifi0: H/W encryption support: WEP AES AES_CCM TKIP
wifi0: mac 5.9 phy 4.3 radio 3.6
wifi0: Use hw queue 1 for WME_AC_BE traffic
wifi0: Use hw queue 0 for WME_AC_BK traffic
wifi0: Use hw queue 2 for WME_AC_VI traffic
wifi0: Use hw queue 3 for WME_AC_VO traffic
wifi0: Use hw queue 8 for CAB traffic
wifi0: Use hw queue 9 for beacons
wifi0: Atheros 5212: mem=0x80000000, irq=12
dmesg of mrouter6:
ath_hal: module license 'Proprietary' taints kernel.
ath_hal: 0.9.17.2 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413, RF5413)
wlan: 0.8.4.2 (svn r778)
ath_rate_sample: 1.2 (svn r778)
ath_pci: 0.9.4.5 (svn r778)
wifi0: 11a rates: 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps
wifi0: 11b rates: 1Mbps 2Mbps 5.5Mbps 11Mbps
wifi0: 11g rates: 1Mbps 2Mbps 5.5Mbps 11Mbps 6Mbps 9Mbps 12Mbps 18Mbps
24Mbps 36Mbps 48Mbps 54Mbps
wifi0: turboA rates: 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps
wifi0: turboG rates: 6Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps
wifi0: H/W encryption support: WEP AES AES_CCM TKIP
wifi0: mac 5.9 phy 4.3 radio 3.6
wifi0: Use hw queue 1 for WME_AC_BE traffic
wifi0: Use hw queue 0 for WME_AC_BK traffic
wifi0: Use hw queue 2 for WME_AC_VI traffic
wifi0: Use hw queue 3 for WME_AC_VO traffic
wifi0: Use hw queue 8 for CAB traffic
wifi0: Use hw queue 9 for beacons
wifi0: Atheros 5212: mem=0x80000000, irq=12
mrouter5:~ # iwconfig ath0
ath0 IEEE 802.11g ESSID:"mcg-mesh"
Mode:Ad-Hoc Frequency:2.412 GHz Cell: Not-Associated
Bit Rate:0 kb/s Tx-Power=14 dBm Sensitivity=0/3
Retry:off RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=0/94 Signal level=-95 dBm Noise level=-95 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
mrouter6:~ # iwconfig ath0
ath0 IEEE 802.11g ESSID:"mcg-mesh"
Mode:Ad-Hoc Frequency:2.412 GHz Cell: Not-Associated
Bit Rate:0 kb/s Tx-Power:13 dBm Sensitivity=0/3
Retry:off RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=0/94 Signal level=-95 dBm Noise level=-95 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
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