Modifying the Interframe Spacing

Michal Kazior michal.kazior at
Fri May 6 00:09:40 PDT 2016

On 6 May 2016 at 00:15, Gaurang Ramesh Naik <gaurang at> wrote:
> Hello,
> I am working on a research project as a part of which I need to modify
> the interframe spacing value (specifically the difs) of all 802.11ac
> nodes (AP as well as STAs) in my test network. In one of the research
> papers, I read that by changing the AIFSN in ath5k drivers, the
> authors had changed the AIFS value. I have been trying to see where
> this has been implemented in the source code under the ath/ath10k/
> directory. Could someone please assist me with the following
> questions,
> (i) Is such a thing even possible in ath10k?
> (ii) Am I looking in the right place (in the ath10k directory)?

FWIW You can influence AIFS via WMM parameters, at least on AP this
should be configurable via hostapd conf file. For client mode you'll
have to override the value programmed in ath10k_conf_tx() in mac.c

Not sure if it'll do what you expect it to though. Could be worth checking out.


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