Re: Dynamic channel Access

[Jose Antonio Delgado Alfonso <jose.delgado@aoifes.com>]

On 26/03/15 07:30, Michal Kazior wrote:
> On 25 March 2015 at 16:34, Jose Antonio Delgado Alfonso
> <jose.delgado@aoifes.com> wrote:
>> Hi all,
>>
>> I would like to ask Qualcomm's collaborators about this topic.
>>
>> We are trying to certify a AP product which uses QCA988x radio module.
>> We are using the ath10k driver (kernel v3.17.8) and firmware from Ben
>> Greear. We are trying to pass the Dynamic Channel test, which consists
>> in setting the radio at 80MHz and, at the same time, setting other
>> signal in the secondary channel. So far, the radio module does not
>> reduce the bandwidth and remains transmitting at 80MHz.
>>
>> Please, Does someone know if Dynamic Channel Access is really supported
>> by ath10k driver in newest kernel versions?
> You haven't really defined what kind of "other signal" you set up.
> ath10k sets/enables dynamic_bw wmi parameter in ath10k_start(). From
> what I know dynamic_bw does enable fw/hw to downgrade traffic from
> 80MHz to 40MHz in case there's other 802.11 traffic on the subband
> happening at least on 10.1.467 - not sure about non-802.11 traffic. I
> suppose newer firmware revisions do that too. I'm not sure about
> 999.999.0.636 though.
>
>
> Michał
>
> _______________________________________________
> ath10k mailing list
> ath10k@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/ath10k
I tested with other AP and also with a signal generator emitting a flat
noise of 20 MHz continuously.

I will check how function ath10k_start is implemented in my kernel tree
and if that parameter is really enabled on my setup.

Thanks.

Jose A. Delgado

_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k