From owner-freebsd-stable@FreeBSD.ORG Wed Mar 27 21:22:19 2013 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id 8C0442CA; Wed, 27 Mar 2013 21:22:19 +0000 (UTC) (envelope-from mavbsd@gmail.com) Received: from mail-ea0-x22f.google.com (mail-ea0-x22f.google.com [IPv6:2a00:1450:4013:c01::22f]) by mx1.freebsd.org (Postfix) with ESMTP id 02D281AF; Wed, 27 Mar 2013 21:22:18 +0000 (UTC) Received: by mail-ea0-f175.google.com with SMTP id r16so942618ead.34 for ; Wed, 27 Mar 2013 14:22:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=x-received:sender:message-id:date:from:user-agent:mime-version:to :subject:content-type:content-transfer-encoding; bh=MTlu+UZE3yX57RtzoQ2geUxJlRwzGO2jEHD+sFXp0OY=; b=WJCxkl2Jk4UBSYzIVxhX9x/4MJ2+k8TtI9W8oacE/6YedYwpMwBf5hZvSRSAG0BXxu BJ/30KU6kqSbwK3v95AuzkrRYPxxIx+RAAceLdkLUMYyM+q0vS9IQzAPgqK55RI4QkDo jUatO4FOhNZKrH3fkV/8jlUmOy8lExQWVGBIqv8khlw09upONUw2Djt2h9k9p17ZZdB7 q/YPmb4HHhMxtWR0YRY3vuq+7tl51FDQQ0pvL5TpZs/pGmLlTt79Xq+yQUTZNeUR60rx OsC3c5bYH+1M4t6ssOIlZdGS2AM9cc2nDT4hwWUVHPvnypa6++RuHyCoiSMzpyshRChh gg1g== X-Received: by 10.15.36.135 with SMTP id i7mr39357547eev.34.1364419338167; Wed, 27 Mar 2013 14:22:18 -0700 (PDT) Received: from mavbook.mavhome.dp.ua (mavhome.mavhome.dp.ua. [213.227.240.37]) by mx.google.com with ESMTPS id h5sm33867550eem.1.2013.03.27.14.22.16 (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Wed, 27 Mar 2013 14:22:17 -0700 (PDT) Sender: Alexander Motin Message-ID: <51536306.5030907@FreeBSD.org> Date: Wed, 27 Mar 2013 23:22:14 +0200 From: Alexander Motin User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:17.0) Gecko/20130326 Thunderbird/17.0.4 MIME-Version: 1.0 To: freebsd-current@FreeBSD.org, freebsd-stable@FreeBSD.org Subject: Any objections/comments on axing out old ATA stack? Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 27 Mar 2013 21:22:19 -0000 Hi. Since FreeBSD 9.0 we are successfully running on the new CAM-based ATA stack, using only some controller drivers of old ata(4) by having `options ATA_CAM` enabled in all kernels by default. I have a wish to drop non-ATA_CAM ata(4) code, unused since that time from the head branch to allow further ATA code cleanup. Does any one here still uses legacy ATA stack (kernel explicitly built without `options ATA_CAM`) for some reason, for example as workaround for some regression? Does anybody have good ideas why we should not drop it now? -- Alexander Motin