[PATCH 1/2] supplicant: Use high-priority queue for management packets.

Janusz Dziedzic janusz.dziedzic at tieto.com
Tue Mar 18 02:10:03 EDT 2014


On 17 March 2014 11:43, Johannes Berg <johannes at sipsolutions.net> wrote:
> On Mon, 2014-03-17 at 11:34 +0100, Janusz Dziedzic wrote:
>
>> > Regarding this mac80211 patch I am just curious what in such case
>> >
>> > AP (UAPSD)   <-->   STA (AC: VO - default we have in mac80211)
>> > STA go to PS
>> > AP send EAP (VO) packet - we will not set PVB
>> > STA will not wake-up ...
>> >
>> > I am not sure about real word here - if vendors/mac80211 allow STA go
>> > to PS during EAP exchange ...
>> >
>>
>> Adding Felix.
>> Did we introduce a possible bug in case of AP UAPSD?
>
> I don't see how any of this is a bug - if the client wants uAPSD then it
> better be prepared to handle VO packets coming to it in some way?
>
You mean HW that support UAPSD in STA mode:
a) "in some" way send trigger frames when goes to PS and expect EAP frame
b) should't go to PS during EAP exchange

Do you know how MVM handle this?

I am asking because mac80211 STA request VO by default (if UAPSD
supported by HW and AP report UAPSD supported) and now we decided to
send EAP also as a VO traffic from AP.

BR
Janusz


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