Return-path: Received: from an-out-0708.google.com ([209.85.132.243]:20781 "EHLO an-out-0708.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750964AbYFKEck (ORCPT ); Wed, 11 Jun 2008 00:32:40 -0400 Received: by an-out-0708.google.com with SMTP id d40so686918and.103 for ; Tue, 10 Jun 2008 21:32:39 -0700 (PDT) Message-ID: <43e72e890806102132q1aaba42ehd76bdd30b8d4080a@mail.gmail.com> (sfid-20080611_063305_149932_805557A2) Date: Tue, 10 Jun 2008 21:32:38 -0700 From: "Luis R. Rodriguez" To: "Tomas Winkler" Subject: Re: [compat-masters] Backported MQ requirement on 802.11n for older kernels Cc: "Johannes Berg" , linux-wireless , "John W. Linville" , compat-masters@lists.madwifi.org, "Tim Gardner" , "Ron Rindjunsky" In-Reply-To: <1ba2fa240806101657w14599f30x67f58acbc7fe9e80@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 References: <43e72e890806080855p284f85brd0ff1f1dfce96bf8@mail.gmail.com> <1213001797.698.57.camel@johannes.berg> <43e72e890806090201q55bff8e3m694121ebd4befee6@mail.gmail.com> <43e72e890806090325y5a1aebadq68204695044f4b6f@mail.gmail.com> <1ba2fa240806101657w14599f30x67f58acbc7fe9e80@mail.gmail.com> Sender: linux-wireless-owner@vger.kernel.org List-ID: On Tue, Jun 10, 2008 at 4:57 PM, Tomas Winkler wrote: > On Mon, Jun 9, 2008 at 1:25 PM, Luis R. Rodriguez wrote: >> On Mon, Jun 9, 2008 at 2:01 AM, Luis R. Rodriguez wrote: >>> On Mon, Jun 9, 2008 at 1:56 AM, Johannes Berg wrote: >>>> On Mon, 2008-06-09 at 10:53 +0300, Ron Rindjunsky wrote: >>>>> > >>>>> > I just finished trying to backport CONFIG_NETDEVICES_MULTIQUEUE >>>>> > requirement for 802.11n to older kernels by relying on the old >>>>> > internal mac80211 hacked up MQ support. I've tested the build on >>>>> > 2.6.22, 2.6.23, and 2.6.24. Let me know if you get to test this, >>>>> > particularly iwl4965 using 11n on 2.6.22. >>>>> > >>>>> >>>>> in config.mk you put MAC80211_QOS=m, and i guess that the intention was to put >>>>> CONFIG_MAC80211_QOS=m >>>>> if this is the case then the compilation fails >>>> >>>> It should be "y" >>>> >>>> johannes >>>> >>> >>> Danke >> >> OK found some more issues. v4.2 pushed out and new tarball >> regenerated. This has been tested by Intel on 802.11n on iwl4965. > > I couldn't make wme.c compiled for kernels > 22 unless I've added the > else statement bellow into confg.mk > You've reported that it worked for you so what did I wrong? > > ifeq ($(CONFIG_NETDEVICES_MULTIQUEUE),) > $(warning "WARNING: You are running a kernel >= 2.6.23, you should > enable CONFIG_NETDEVICES_MULTIQUEUE for 802.11n support") > else > CONFIG_MAC80211_QOS=y Well this is forcing this option on kernels where it probably was available. I don't recall where we added this but I was relying on your .config. We forced this for older kernels as we are providing the infrastructure within the code but for newer kernels you need MQ support and NET_SCHED. If we force enable it and if those options are not enabled it'll fail. This is why we have this big fat warning if MQ is detected as disabled for >= 2.6.23. Let me know what you think. Luis