Return-path: Received: from mail-qy0-f181.google.com ([209.85.216.181]:49144 "EHLO mail-qy0-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751294Ab1ITSip convert rfc822-to-8bit (ORCPT ); Tue, 20 Sep 2011 14:38:45 -0400 Received: by qyk7 with SMTP id 7so851506qyk.19 for ; Tue, 20 Sep 2011 11:38:44 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <4E78D990.3090601@openwrt.org> References: <35635039ce7d4a79dc62b19d51ccf0d5d4838112.1316297595.git.an.alexsimon@googlemail.com> <1316437459.5995.29.camel@jlt3.sipsolutions.net> <36569806.Rgjanm0GiI@alex-1> <1316521312.3953.27.camel@jlt3.sipsolutions.net> <4E78D990.3090601@openwrt.org> From: "Luis R. Rodriguez" Date: Tue, 20 Sep 2011 11:38:24 -0700 Message-ID: (sfid-20110920_203857_684810_985FDAE3) Subject: Re: [PATCH v3 3/3] mac80211: Add HT operation modes for IBSS To: Felix Fietkau Cc: Johannes Berg , Javier Cardona , Alexander Simon , linux-wireless@vger.kernel.org Content-Type: text/plain; charset=UTF-8 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Tue, Sep 20, 2011 at 11:21 AM, Felix Fietkau wrote: > On 2011-09-20 8:12 PM, Luis R. Rodriguez wrote: >> >> On Tue, Sep 20, 2011 at 5:21 AM, Johannes Berg >>  wrote: >>> >>>  On Mon, 2011-09-19 at 17:46 +0200, Alexander Simon wrote: >>>  That seems pretty complex too ... >>> >>>  I don't really know. As I said, I think I'd be happy with an >>>  implementation that maybe doesn't fully implement everything as long as >>>  it considers the trade-offs. >> >> The same questions come up with HT support and 802.11s, as per Javier >> this is not really well spelled out in the spec. My recommendation is >> to just support for now the most simple case and let us not entangle >> ourselves with the complexities of handling trying to merge different >> setups. So only enable peering up for adhoc or mesh if and only if the >> observed IE matches our own supported HT caps or target configuration. >> If a legacy STA tries to peer up with an HT IBSS, this would simply be >> rejected. We can leave off handling the change in configuration later >> for userspace, but do not see this as being a requirement for >> supporting HT for IBSS or Mesh. The simpler the better, so long as we >> simply respect the spec. > > I disagree. That'll make it useless for real deployments, which are often a > mix of HT and non-HT devices. I'm not saying to not do it at all, I'm saying to start off with basic support *first* and *later* worry about the mixing. Luis