Re: [ath5k-devel] high and unpredictable transmission delays

2010-04-15 Thread Bruno Randolf
On Friday 16 April 2010 03:43:30 Nabeel Ahmed wrote: > Hi All, > > I'm wondering if someone can provide me some hints to tackle a problem > I've been hitting my head on for the last couple of days. I've been > working with the ath5k code for the last couple of weeks and am running > into some perf

[ath5k-devel] spur mitigation logic?

2010-04-15 Thread Bruno Randolf
hello! we have found the this suspect piece of code in ath5k_hw_reset(): /* Note: According to docs we can have a newer * EEPROM on old hardware, so we need to verify * that our hardware is new enough to have spur

Re: [ath5k-devel] high and unpredictable transmission delays

2010-04-15 Thread Bruno Randolf
On Friday 16 April 2010 03:43:30 Nabeel Ahmed wrote: > Hi All, > > I'm wondering if someone can provide me some hints to tackle a problem > I've been hitting my head on for the last couple of days. I've been > working with the ath5k code for the last couple of weeks and am running > into some perf

[ath5k-devel] [PATCH] ath5k/ath9k: Fix 64 bits TSF reads

2010-04-15 Thread Benoit Papillault
According to tests, both TSF lower and upper registers kept counting, so the higher part could have been updated after the lower part has been read, as shown in the following log where the upper part is read first and the lower part next. tsf = {0003-fffd} tsf = {0003-0001} tsf = {

Re: [ath5k-devel] high and unpredictable transmission delays

2010-04-15 Thread Benoit PAPILLAULT
Nabeel Ahmed a écrit : > Hi Benoit, > > Thanks for your fast response. I did disable virtual carrier sense as > well. But, I still see these unpredictable delays. Can you think of > what possibly the hardware may be doing during these transmission > periods that could introduce such delays? > >

Re: [ath5k-devel] high and unpredictable transmission delays

2010-04-15 Thread Nabeel Ahmed
Hi Benoit, Thanks for your fast response. I did disable virtual carrier sense as well. But, I still see these unpredictable delays. Can you think of what possibly the hardware may be doing during these transmission periods that could introduce such delays? Thanks. - Nabeel Ahmed. Benoit P

Re: [ath5k-devel] high and unpredictable transmission delays

2010-04-15 Thread Benoit PAPILLAULT
Nabeel Ahmed a écrit : > Hi All, > > I'm wondering if someone can provide me some hints to tackle a problem > I've been hitting my head on for the last couple of days. I've been > working with the ath5k code for the last couple of weeks and am running > into some performance issues with the driv

[ath5k-devel] high and unpredictable transmission delays

2010-04-15 Thread Nabeel Ahmed
Hi All, I'm wondering if someone can provide me some hints to tackle a problem I've been hitting my head on for the last couple of days. I've been working with the ath5k code for the last couple of weeks and am running into some performance issues with the driver. My problem involves schedulin