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Re: mac80211 QoS/aggregation questions, thoughts

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On Sunday 03 February 2008, Guy Cohen wrote:
> On 2/2/08, Ivo van Doorn <ivdoorn@xxxxxxxxx> wrote:
> > On Saturday 02 February 2008, Tomas Winkler wrote:
> > > 4965 has 4 queues which are used for regular WMM.  Only 11 queues
> > > might be used for aggregation, but in AP mode we might map one of the
> > > queues to after beacon multicast traffic.
> >
> > Just out of interest, and I don't know about the iwl4965 driver specifics,
> > but how will you make sure those frames are send after the beacon?
> > Does the beacon trigger an interrupt after each interval which allows you to queue
> > the frames or is some other approach used?
> 
> For iwl4965, mcast frames are queued into a separate HW TX FIFO (no
> need to buffer at the host). Beacon periodic transmission and
> controling the TX of mcast frames from the mcast FIFO are all timely
> done in real-time by the device.

Thanks for the explanation.

Ivo
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