2010/12/2 Sedat Dilek <sedat.dilek@xxxxxxxxxxxxxx>:
> On Wed, Dec 1, 2010 at 11:21 AM, Bruno Randolf <br1@xxxxxxxxxxx> wrote:
>> On Wed December 1 2010 19:09:03 Sedat Dilek wrote:
>>> Hi,
>>>
>>> I have built today a linux-next (next-20101201) kernel which includes
>>> wireless-next-2.6 up to master-2010-11-30.
> [...]
>>> Unfortunately, my wlan network connection is totally unstable.
> [...]
>> 1.) For identification of the chipset, please:
>> dmesg |grep "ath5.*chip"
>>
>> 2.) Is there a problem when you don't use encryption?
>>
>> 3.) git bisect might help track it down.
>>
>> bruno
>
> OK, I did not a "classic" git-bisect, I created from linux-next
> (next-20101202) GIT tree a revert-ath5k patchset (30 in total).
>
> [1] VERY GOOD: Revertiing all 30 patches
>
> ...leads to a stable system.
>
> [2] REDUCED DISCONNECTIONS DROPS: Reverting 0001..0008
>
> This stabilizes the system, but... listening to a radio
> broadcast-stream with VLC is a pain in the ass... permanent audio
> dropouts. I had only 2 disconnections in the first 10mins when system
> was up (normally I can see disconnects after loggin into my KDE
> desktop).
>
> [3] GOOD AUDIO STREAMING: Reverting 0001..0014
>
> This is just fine, system like I am used to.
>
> [4] CONCLUSION
>
> So I played a bit with my revert-patchset.
>
> Reverting 0001..0008 + a refreshed v2 of
> 0014-Revert-ath5k-Use-turbo-flag-on-DCU.patch (patch attached) is
> doing the job here.
>
> Having a closer look into 0008 (parts of
> drivers/net/wireless/ath/ath5k/reset.c):
>
> $ grep AR5212 patches/revert-wireless-patches/0008-Revert-ath5k-Support-synth-only-channel-change-for-A.patch
> - Â Â Â if (ah->ah_version == AR5K_AR5212)
> + Â Â Â Â Â Â Â Â Â Â Â Â* On AR5212 TSF is almost preserved across a
> - Â Â Â Â Â Â Â Â* On AR5212 TSF is almost preserved across a
> + Â Â Â Â Â Â Â if (ah->ah_version == AR5K_AR5212) {
> - Â Â Â if (ah->ah_version == AR5K_AR5212 &&
>
> As I mentionned I have a AR5212 wlan device!
> What to do with that parts?
> Any idea?
>
> Kind Regards,
> - Sedat -
>
> P.S.: I have added a list containing all commit-ids (chronological)
> and a script how I reverted (documenting for myself).
>
> $ ls patches/revert-wireless-patches/00*.patch
> patches/revert-wireless-patches/0001-Revert-ath5k-Set-turbo-bit-on-rf-bank-2.patch
> patches/revert-wireless-patches/0002-Revert-ath5k-Clean-up-turbo-mode-initvals-rfregs.patch
> patches/revert-wireless-patches/0003-Revert-ath5k-Cleanup-turbo-channel-flags.patch
> patches/revert-wireless-patches/0004-Revert-ath5k-Use-correct-clock-when-setting-ofdm-tim.patch
> patches/revert-wireless-patches/0005-Revert-ath5k-Skip-tx-power-setting-on-AR5210-for-now.patch
> patches/revert-wireless-patches/0006-Revert-ath5k-Tweak-phy-activate-to-rx-start-delay-ba.patch
> patches/revert-wireless-patches/0007-Revert-ath5k-No-need-to-save-restore-staid-flags-on-.patch
> patches/revert-wireless-patches/0008-Revert-ath5k-Support-synth-only-channel-change-for-A.patch
> patches/revert-wireless-patches/0009-Revert-ath5k-Skip-powertable-setting-when-we-are-on-.patch
> patches/revert-wireless-patches/0010-Revert-ath5k-Update-PLL-programming-for-turbo-half-q.patch
> patches/revert-wireless-patches/0011-Revert-ath5k-Update-spur-mitigation-filter-for-turbo.patch
> patches/revert-wireless-patches/0012-Revert-ath5k-Tweak-power-detector-delays-on-RF5111-R.patch
> patches/revert-wireless-patches/0013-Revert-ath5k-Always-set-IFS-intervals-on-reset.patch
> patches/revert-wireless-patches/0014-Revert-ath5k-Use-turbo-flag-on-DCU.patch
> patches/revert-wireless-patches/0015-Revert-ath5k-Set-all-IFS-intervals-not-just-slot-tim.patch
> patches/revert-wireless-patches/0016-Revert-ath5k-Extend-rate_duration.patch
> patches/revert-wireless-patches/0017-Revert-ath5k-Extend-get_default_sifs-slot_time.patch
> patches/revert-wireless-patches/0018-Revert-ath5k-Move-tx-retries-setting-outside-reset_t.patch
> patches/revert-wireless-patches/0019-Revert-ath5k-Increase-PHY-settling-parameters-for-tu.patch
> patches/revert-wireless-patches/0020-Revert-ath5k-Small-cleanup-on-tweak_initvals.patch
> patches/revert-wireless-patches/0021-Revert-ath5k-Put-core-clock-initialization-on-a-new-.patch
> patches/revert-wireless-patches/0022-Revert-ath5k-Add-new-field-on-ath5k_hw-to-track-band.patch
> patches/revert-wireless-patches/0023-Revert-ath5k-Use-new-function-to-stop-beacon-queue.patch
> patches/revert-wireless-patches/0024-Revert-ath5k-Check-RXE-when-setting-RXDP.patch
> patches/revert-wireless-patches/0025-Revert-ath5k-Use-DCU-early-termination-correctly.patch
> patches/revert-wireless-patches/0026-Revert-ath5k-Debug-DMA-timeouts.patch
> patches/revert-wireless-patches/0027-Revert-ath5k-Use-new-dma_stop-function-on-base.c.patch
> patches/revert-wireless-patches/0028-Revert-ath5k-Stop-PCU-on-reset.patch
> patches/revert-wireless-patches/0029-Revert-ath5k-Add-new-function-to-stop-rx-tx-DMA.patch
> patches/revert-wireless-patches/0030-Revert-ath5k-Reset-cleanup-and-generic-cleanup.patch
>
OK this doesn't make any sense, based on your logs you have an
AR5212+RF5111+RF2111 combination, synth-only channel change (0008) is
only executed on AR2413 and AR5413 so you don't even run that code,
setting turbo flag on DCU (0014) is also unrelated since we never
enable turbo mode and if we did you wouldn't be able to receive
anything non-turbo.
I am going to test 2 cards like yours a CM6 and an older one from
Atheros and come back to you ASAP...
--
GPG ID: 0xD21DB2DB
As you read this post global entropy rises. Have Fun ;-)
Nick
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