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Re: [PATCH RFC/RFT] b43: Improve TX power recalculation under load

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Michael Buesch wrote:
On Monday 25 August 2008 21:54:18 Michael Buesch wrote:
The patch is available here:
http://bu3sch.de/patches/wireless-testing/20080825-2146/patches/004-b43-NEW-rewrite-txpower-adjusting.patch

Here's an updated version with a major bug fixed:
http://bu3sch.de/patches/wireless-testing/20080825-2227/patches/004-b43-NEW-rewrite-txpower-adjusting.patch

iperf, wget, speedtest.net, and sftp all show similar performance.

Ehud
0c:00.0 Network controller: Broadcom Corporation BCM4311 802.11b/g WLAN (rev 01)
   Subsystem: Dell Wireless 1390 WLAN Mini-Card
   Flags: bus master, fast devsel, latency 0, IRQ 17
   Memory at ecffc000 (32-bit, non-prefetchable) [size=16K]
   Capabilities: [40] Power Management version 2
Capabilities: [58] Message Signalled Interrupts: Mask- 64bit- Queue=0/0 Enable-
   Capabilities: [d0] Express Legacy Endpoint IRQ 0
   Capabilities: [100] Advanced Error Reporting
   Capabilities: [13c] Virtual Channel

root@egdell:~# uname -a
Linux egdell 2.6.27-rc3-20080825-wl #1 SMP Mon Aug 25 14:08:15 MST 2008 x86_64 GNU/Linux
root@egdell:~# dmesg | grep b43
b43-pci-bridge 0000:0c:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
b43-pci-bridge 0000:0c:00.0: setting latency timer to 64
b43-phy0: Broadcom 4311 WLAN found
b43-phy0 debug: Found PHY: Analog 4, Type 2, Revision 8
b43-phy0 debug: Found Radio: Manuf 0x17F, Version 0x2050, Revision 2
input: b43-phy0 as /class/input/input8
firmware: requesting b43/ucode5.fw
firmware: requesting b43/pcm5.fw
firmware: requesting b43/b0g0initvals5.fw
firmware: requesting b43/b0g0bsinitvals5.fw
b43-phy0: Loading firmware version 410.2160 (2007-05-26 15:32:10)
b43-phy0 debug: Chip initialized
b43-phy0 debug: 32-bit DMA initialized
Registered led device: b43-phy0::tx
Registered led device: b43-phy0::rx
Registered led device: b43-phy0::radio
b43-phy0 debug: Wireless interface started
b43-phy0 debug: Adding Interface type 2
b43-phy0: Radio turned on by software
b43-phy0 debug: Using hardware based encryption for keyidx: 0, mac: ff:ff:ff:ff:ff:ff b43-phy0 debug: Disabling hardware based encryption for keyidx: 0, mac: ff:ff:ff:ff:ff:ff
b43-phy0 debug: Removing Interface type 2
b43-phy0 debug: Wireless interface stopped
b43-phy0 debug: DMA-32 rx_ring: Used slots 32/64, Failed frames 0/0 = 0.0%, Average tries 0.00 b43-phy0 debug: DMA-32 tx_ring_AC_BK: Used slots 0/128, Failed frames 0/0 = 0.0%, Average tries 0.00 b43-phy0 debug: DMA-32 tx_ring_AC_BE: Used slots 128/128, Failed frames 42/41538 = 0.1%, Average tries 1.24 b43-phy0 debug: DMA-32 tx_ring_AC_VI: Used slots 0/128, Failed frames 0/0 = 0.0%, Average tries 0.00 b43-phy0 debug: DMA-32 tx_ring_AC_VO: Used slots 2/128, Failed frames 0/86 = 0.0%, Average tries 1.00 b43-phy0 debug: DMA-32 tx_ring_mcast: Used slots 0/128, Failed frames 0/0 = 0.0%, Average tries 0.00
input: b43-phy0 as /class/input/input9
b43-phy0: Loading firmware version 410.2160 (2007-05-26 15:32:10)
b43-phy0 debug: Chip initialized
b43-phy0 debug: 32-bit DMA initialized
Registered led device: b43-phy0::tx
Registered led device: b43-phy0::rx
Registered led device: b43-phy0::radio
b43-phy0 debug: Wireless interface started
b43-phy0 debug: Adding Interface type 2
b43-phy0 debug: Using hardware based encryption for keyidx: 0, mac: ff:ff:ff:ff:ff:ff

Attachment: smime.p7s
Description: S/MIME Cryptographic Signature


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