[ath10k] IBSS mode

Sylvain ROGER RIEUNIER sylvain.roger.rieunier at gmail.com
Tue Jan 27 05:55:47 PST 2015

Dear Michal,

I have already tried the CT firmware. Association between stations
works better, But the rate control update is still broken.
It does not work in HT mode.


2015-01-27 14:18 GMT+01:00 Michal Kazior <michal.kazior at tieto.com>:
> On 27 January 2015 at 14:08, Sylvain ROGER RIEUNIER
> <sylvain.roger.rieunier at gmail.com> wrote:
>> I just made some tests with the ath10k driver in IBSS mode and I found
>> several problems:
>> 1) TSF management can't be done correctly. You can't make GET, SET or
>> RESET actions, because no command is sent to the firmware. However the
>> WMI_RTT_TSF_CMDID command exists. I tried some changes (see patch),
>> but they did not produce any effect.
> This isn't implemented in firmware 636 as far as I know.
>> 2) Rate control update is not functional in the firmware. Data rate is
>> stuck at 25 Mbit/s between an ath10k IBSS station and an ath9k IBSS
>> station. However the rate control update works fine in mac80211 (I
>> checked it thanks to IBSS debug msg) and IE HT settings are correctly
>> transmitted on both side (I checked it using a third interface in
>> monitor mode). The ath10k_wmi_peer_assoc command does not seem to work
>> for reassoc state to update data rate.
> Janusz has done some patches related to the hw rate control issues
> with IBSS recently:
>  https://github.com/kvalo/ath/commit/627d9841eaa623e34657af7af0e6293805e07888
>  https://github.com/kvalo/ath/commit/55884c045d31a29cf69db8332d1064a1b61dd159
>> Conclusion: the firmware seems incomplete for IBSS mode operation. Is
>> there any planned development on the IBSS mode in the firmware?
>> Note: I did my tests with the firmware-2.bin_999.999.0.636 firmware.
> Ben has recently added IBSS support for his 10.1 firmware fork:
>  http://thread.gmane.org/gmane.linux.drivers.ath10k.devel/1023/focus=1026
> You might be interested in giving it a try.
> Michał

More information about the ath10k mailing list