Subject: Re: [RFC] mac80211 rx filter in mesh mode, rt2x00 mesh point
	operation
From: Johannes Berg <johannes@sipsolutions.net>
To: Javier Cardona <javier@cozybit.com>
Cc: Ivo van Doorn <ivdoorn@gmail.com>,
	Andrey Yurovsky <andrey@cozybit.com>,
	linux-wireless@vger.kernel.org
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	 <445f43ac0810231507l790332b9h2c05e95aa0212392@mail.gmail.com>
	 <200810251228.17562.IvDoorn@gmail.com>
	 <445f43ac0810251820p71e6e330tba6ba9475ca8aa48@mail.gmail.com>
	 <1225008571.3478.14.camel@johannes.berg>
	 <445f43ac0810261334y7c064785gbf83efe3ab00cdf9@mail.gmail.com>
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Date: Thu, 30 Oct 2008 13:26:48 +0100
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On Sun, 2008-10-26 at 13:34 -0700, Javier Cardona wrote:

> >> > For rt2x00 this would turn into:
> >> >        FIF_ALLMULTI | FIF_OTHER_BSS | FIF_PROMISC_IN_BSS
> >>
> >> With the above configuration, will the rt2x00 device acknowledge 1)
> >> unicast frames addressed to itself? 2) unicast frames addressed to
> >> others? 3) none of the above?
> >
> > It should always only be (1), mac80211 might set OTHER_BSS if it (well,
> > the user) wants to see traffic on the same channel from other BSSes.
>=20
> Good.  My concern was that FIF_PROMISC_IN_BSS would disable all
> acknowledgments.  (I've seen some wireless hw with that behavior)

Just for the record, (1) is the behaviour mac80211 needs, and hardware
that behaves as the one you've seen wouldn't support FIF_PROMISC_IN_BSS
at all, and consequently not mesh either, I suppose. I'll add a note to
the API page.

johannes

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