[ath9k-devel] [BUG] P2P setup timeout

[Oleksij Rempel <linux@rempel-privat.de>]

Am 16.12.2013 14:51, schrieb David Herrmann:
> Hi
> 
> On Mon, Dec 16, 2013 at 2:45 PM, Johannes Berg
> <johannes@sipsolutions.net> wrote:
>> On Mon, 2013-12-16 at 14:39 +0100, David Herrmann wrote:
>>
>>>> Can you check in a sniffer what the frame bitrates are that go out? This
>>>> seems suspicious:
>>>>
>>>> nl80211: Set TX rates failed: ret=-100 (Network is down)
>>>
>>> I looked at the sniffer data and all I see is a huge amount of p2p
>>> probe requests from my local device, the successful p2p-invitation and
>>> invitation response and then lots of go-negotiation requests that
>>> never get any response.
>>
>> Right, and I suspect they don't get a response because (as the sniffer
>> trace tells me) they're sent with 1 Mbps (a CCK rate), which is invalid
>> in the P2P spec (must use OFDM).
>>
>> Thus something is wrong with the TX bitrates stuff, but I can't tell you
>> where that would be ...
> 
> Ok, I will try hooking into the ath9k driver then and see why setting
> TX rates fails. Thanks a lot! Maybe Oleksij has some more ideas on
> that.

ath9k_htc has it own rate controller insight of firmware. We wont to
move this functionality to the host and use minstreal-rt, but currently
this project is not started and currently there is no clear start time
:( Beside, there are more problems with FWs rate controller.

David, if you need to fix this bug, i would you suggest you to
investigate in firmware. I will help you as match as i can.

-- 
Regards,
Oleksij