Return-path: Received: from yx-out-2324.google.com ([74.125.44.29]:62671 "EHLO yx-out-2324.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751211AbYJTGeW (ORCPT ); Mon, 20 Oct 2008 02:34:22 -0400 Received: by yx-out-2324.google.com with SMTP id 8so261275yxm.1 for ; Sun, 19 Oct 2008 23:34:21 -0700 (PDT) Message-ID: <43e72e890810192334v24c58998p36325723a6fa156a@mail.gmail.com> (sfid-20081020_083425_741424_E15C8981) Date: Sun, 19 Oct 2008 23:34:21 -0700 From: "Luis R. Rodriguez" To: "Kalle Valo" Subject: Re: Power saving on mac80211 Cc: "Johannes Berg" , linux-wireless , "Zhu Yi" , "Tomas Winkler" In-Reply-To: <87tzb7j0uy.fsf@nokia.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 References: <43e72e890810171810t1c65642g998db601cfe2a390@mail.gmail.com> <87bpxh6t1n.fsf@nokia.com> <87y70l59p4.fsf@nokia.com> <1224412006.6324.45.camel@johannes.berg> <871vyc7st7.fsf@nokia.com> <1224434885.6324.49.camel@johannes.berg> <87myh0a1zd.fsf@nokia.com> <43e72e890810191846h46a6b35br4ad61803a25bdf23@mail.gmail.com> <87tzb7j0uy.fsf@nokia.com> Sender: linux-wireless-owner@vger.kernel.org List-ID: On Sun, Oct 19, 2008 at 10:23 PM, Kalle Valo wrote: > Luis R. Rodriguez writes: > >>>> Right. But we need to program the chip to tell the chip "hey please tell >>>> me if you haven't seen a beacon in X seconds". >>> >>> Ah, you mean that timeout. Sorry, I forgot that one altogether. Yes, >>> we definitely need that timeout. >> >> Is this to configure the firmware to report beacon misses so that in >> those cases we can inform mac80211? > > Yes. > >> And to let mac80211 be aware/be able to set this as a tunable >> parameter? > > Yes. > >> I wanted to note intel hardware seems to handle parsing beacons in >> firmware when is PS mode already and I have no clue when it would >> inform mac80211 of a beacon miss and if it does it. Tomas? > > Oh, cool. I'm not familiar with iwlwifi so I would appreciate any > pointers to the sources so that I could take a look at the > implementation. Its all implemented in firmware. Luis