While using the latest b43legacy driver, I have severe packet loss
originating from the machine using the b43legacy driver. However, when
packets are routed through the machine using NAT, no packet loss
occurs. Ping results are as follows:
using 'ping -c 100 192.168.1.1'
>From local machine (192.168.1.100) to wireless router (192.168.1.1)
43% packet loss, average rtt 13.987ms
>From nat machine(192.168.2.100) to wireless router (192.168.1.1) via
b43legacy router(eth0:192.168.2.1, wlan0:192.168.1.100)
0% packet loss, average rtt 3.621ms
The only logical conclusion I can draw from the above information is
that there is something wrong with how packets are created locally and
delivered to the device. I'm willing to provide any help necessary
needed to correct the issue.
Regards,
David Ellingsworth
On Sun, Jul 6, 2008 at 2:37 PM, Larry Finger <[email protected]> wrote:
> David Ellingsworth wrote:
>>
>> While using the latest b43legacy driver, I have severe packet loss
>> originating from the machine using the b43legacy driver. However, when
>> packets are routed through the machine using NAT, no packet loss
>> occurs. Ping results are as follows:
>>
>> using 'ping -c 100 192.168.1.1'
>>
>>> From local machine (192.168.1.100) to wireless router (192.168.1.1)
>>
>> 43% packet loss, average rtt 13.987ms
>>
>>> From nat machine(192.168.2.100) to wireless router (192.168.1.1) via
>>
>> b43legacy router(eth0:192.168.2.1, wlan0:192.168.1.100)
>> 0% packet loss, average rtt 3.621ms
>>
>> The only logical conclusion I can draw from the above information is
>> that there is something wrong with how packets are created locally and
>> delivered to the device. I'm willing to provide any help necessary
>> needed to correct the issue.
>
> More information please.
>
> 1. Is your "latest b43legacy" from wireless-testing, 2.6.26-rc9, or what?
>
> 2. What BCM43xx card are you using?
>
> 3. What wireless router are you using?
>
> Using the wireless-testing git tree with a BCM4306/2 and working with a
> Linksys WRT54GL router with standard firmware, my statistics for the ping -c
> 100 192.168.1.1 command are 0% packet loss with average rtt of 2.919 ms.
>
> Larry
>
1. I'm using the latest b43legacy driver from wireless-testing as of
this morning, which looks to be 2.6.26-rc8-wl.
2. The card is a BCM4306/2 mini-pci card in a Compaq Presario laptop.
relevant lspci info is as follows:
00:09.0 0280: 14e4:4320 (rev 02)
Subsystem: 0e11:00e7
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: 64
Interrupt: pin A routed to IRQ 10
Region 0: Memory at d0000000 (32-bit, non-prefetchable) [size=8K]
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=2 PME+
Kernel driver in use: b43-pci-bridge
Kernel modules: ssb
dmesg info is as follows:
b43legacy-phy0: Broadcom 4306 WLAN found
b43legacy-phy0 debug: Found PHY: Analog 1, Type 2, Revision 1
b43legacy-phy0 debug: Found Radio: Manuf 0x17F, Version 0x2050, Revision 2
b43legacy-phy0 debug: Radio initialized
firmware: requesting b43legacy/ucode4.fw
firmware: requesting b43legacy/pcm4.fw
firmware: requesting b43legacy/b0g0initvals2.fw
b43legacy-phy0: Loading firmware version 0x127, patch level 14
(2005-04-18 02:36:27)
b43legacy-phy0 debug: Chip initialized
b43legacy-phy0 debug: 30-bit DMA initialized
b43legacy-phy0 debug: Wireless interface started
b43legacy-phy0 debug: Adding Interface type 2
3. I'm using the laptop as the wireless router. My current setup is as follows:
comp(192.168.2.100)->(eth0:192.168.2.1)laptop(wlan0:192.168.1.100)->(192.168.1.1)WRT54G->internet.
Pings from the laptop to the WRT54G experience a high packet loss.
Those from the computer being routed through the laptop to the WRT54G
do not.
Regards,
David Ellingsworth
David Ellingsworth wrote:
> While using the latest b43legacy driver, I have severe packet loss
> originating from the machine using the b43legacy driver. However, when
> packets are routed through the machine using NAT, no packet loss
> occurs. Ping results are as follows:
>
> using 'ping -c 100 192.168.1.1'
>
>>From local machine (192.168.1.100) to wireless router (192.168.1.1)
> 43% packet loss, average rtt 13.987ms
>
>>From nat machine(192.168.2.100) to wireless router (192.168.1.1) via
> b43legacy router(eth0:192.168.2.1, wlan0:192.168.1.100)
> 0% packet loss, average rtt 3.621ms
>
> The only logical conclusion I can draw from the above information is
> that there is something wrong with how packets are created locally and
> delivered to the device. I'm willing to provide any help necessary
> needed to correct the issue.
More information please.
1. Is your "latest b43legacy" from wireless-testing, 2.6.26-rc9, or what?
2. What BCM43xx card are you using?
3. What wireless router are you using?
Using the wireless-testing git tree with a BCM4306/2 and working with a Linksys
WRT54GL router with standard firmware, my statistics for the ping -c 100
192.168.1.1 command are 0% packet loss with average rtt of 2.919 ms.
Larry