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Re: [PATCH 7/9] rt2x00: Fix rt2800 USB TX Path DMA issue

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On Tue, Nov 16, 2010 at 05:42:08PM +0100, Helmut Schaa wrote:
> Am Dienstag 16 November 2010 schrieb Johannes Stezenbach:
> > 
> > Hm, yes, rt2x00mac_conf_tx() has the same issue that it calls
> > rt2x00queue_get_queue() with an argument which is a mac80211 AC,
> > but expects an enum data_queue_qid.  So one could says one
> > bug cancels the other out.
> 
> Right. We could of course add a mac80211-queue <-> rt2x00-queue mapping in
> the appropriate places or rename the QID_* identifiers accordingly. Not sure
> if it's worth it ...

Hm, reducing confusion enhances maintainability.

> > > And btw. queue 0 is used for managment frames as well.
> > 
> > Queue 0 means QID_AC_BE?  Or AC_VI?
> 
> It's AC_VO.

Ah, right got it now.  This explains the output of
/sys/kernel/debug/ieee80211/phy0/rt2800usb/queue/queue,
qid 0 is used by management frames and queue 2 for BE data.


Thanks,
Johannes
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