From owner-freebsd-wireless@FreeBSD.ORG Wed Aug 1 06:27:35 2012 Return-Path: Delivered-To: freebsd-wireless@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 282DB1065D26 for ; Wed, 1 Aug 2012 06:27:35 +0000 (UTC) (envelope-from adrian.chadd@gmail.com) Received: from mail-gg0-f182.google.com (mail-gg0-f182.google.com [209.85.161.182]) by mx1.freebsd.org (Postfix) with ESMTP id D1F318FC08 for ; Wed, 1 Aug 2012 06:27:34 +0000 (UTC) Received: by ggnk4 with SMTP id k4so75549ggn.13 for ; Tue, 31 Jul 2012 23:27:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type; bh=hxbKNZASwHTCl4QhQZ6jKymvZm6FmyWeTLfngfvGZNg=; b=t+pOlkJbfWLHFXtFSpt+UBFUB7koAoGFw6U9FHArKG2LAVjfQfMqF0xXJ7iXxWqDgQ SdqroEAJce4YgQqjPaHOLZeTae1+51g/SHRfVvoUBfI1SgS0Hm3KXeFtO+aLlb6hMiAu jhs+MJHaEbN8imFTVYHXfdtMX3I3XPFTSNJoGbqAFVaYp7rAs8MoIorHTP3Y6mmmw+Xd d2bWgSJDj1t08QHwiXiL6zKKHiw+tb8Avi5TE1XufAJLnGxeghY5tCu96F6lyfBphnVL JkTrBvpluh/jIZc333oNk/mrEKKG/8kdaxh+z2/CatuSc455QDiFzzmyo6YXKL3anf0a KgdQ== MIME-Version: 1.0 Received: by 10.68.223.164 with SMTP id qv4mr49500254pbc.20.1343802451605; Tue, 31 Jul 2012 23:27:31 -0700 (PDT) Sender: adrian.chadd@gmail.com Received: by 10.68.66.136 with HTTP; Tue, 31 Jul 2012 23:27:31 -0700 (PDT) In-Reply-To: References: <475A4E02EFF4724A9E58F55A56AC1316063B3323@APEVS1.ap.ci.root> <475A4E02EFF4724A9E58F55A56AC1316063B35EB@APEVS1.ap.ci.root> Date: Tue, 31 Jul 2012 23:27:31 -0700 X-Google-Sender-Auth: wi-Co87ku5ICL1vds-GQE3uUnhU Message-ID: From: Adrian Chadd To: "Wright, Brett" Content-Type: text/plain; charset=ISO-8859-1 Cc: freebsd-wireless@freebsd.org Subject: Re: Atheros DFS radar detection X-BeenThere: freebsd-wireless@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Discussions of 802.11 stack, tools device driver development." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 01 Aug 2012 06:27:35 -0000 .. basically, let's establish that you're using a sane/sensible set of parameters before we go off and try to see why you're seeing such high false detects. It's expected that you'll see quite a few false detects on the AR5212 era NICs, but I don't recall it being quite that bad in my limited testing. So for madwifi-dfs, it'd be here: http://madwifi-project.org/browser/madwifi/branches/madwifi-dfs/ath/if_ath_radar.h Tell me what the value of register 0x9954 is. Are you running the madwifi-dfs code on FreeBSD somehow? Or are you actually doing this with madwifi? It'd be cool if you could bring this up on FreeBSD, as I'm happy to work with the community if they're willing to take charge of porting over the madwifi-dfs pattern matching code and work on false detection avoidance. 2c, Adrian