From owner-freebsd-current@FreeBSD.ORG Sun Nov 15 22:40:17 2009 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id E34F510656A3 for ; Sun, 15 Nov 2009 22:40:17 +0000 (UTC) (envelope-from mavbsd@gmail.com) Received: from mail-bw0-f213.google.com (mail-bw0-f213.google.com [209.85.218.213]) by mx1.freebsd.org (Postfix) with ESMTP id 6861D8FC20 for ; Sun, 15 Nov 2009 22:40:16 +0000 (UTC) Received: by bwz5 with SMTP id 5so5404267bwz.3 for ; Sun, 15 Nov 2009 14:40:16 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:sender:message-id:date:from :user-agent:mime-version:to:cc:subject:references:in-reply-to :content-type:content-transfer-encoding; bh=79me7eG/BFbX/5+WqZzMLzH4L5IBhh8gm5lWXhLxIsg=; b=b69g/Lde2Yrekc7lYssnhcYMwItkiEMwlMNlg1C3obDTLZ8h9beDpRvDgTFn0Bc81l UBOWBGR0IzoXsicP/hYQIQSzLOTunNVHorRvsvmuAlJhzp2I9u7+1eojqut7TB9AecS9 Yw0odUzZlQzTZNDQSy2pCnBTc62V0OZ4OxnJo= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=sender:message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:content-type:content-transfer-encoding; b=lIz1CTMMySDyFxBjlMSpyIMCfMJ5WjPLQXP/tlmaQfo5+W0BUT9oplnEw6X6ANM5RL Uj87SbndGLR8bUNunHTomCP+QgROEp0Klu/WmInkP2ly37713XCdNtJiIA6D9WHRBtPW I+uGUYvjobI/Bm5L5EzAVJwlT55IKdjSSE4bg= Received: by 10.204.34.84 with SMTP id k20mr5288228bkd.199.1258324816035; Sun, 15 Nov 2009 14:40:16 -0800 (PST) Received: from mavbook.mavhome.dp.ua (pc.mavhome.dp.ua [212.86.226.226]) by mx.google.com with ESMTPS id 16sm1877116fxm.8.2009.11.15.14.40.14 (version=SSLv3 cipher=RC4-MD5); Sun, 15 Nov 2009 14:40:15 -0800 (PST) Sender: Alexander Motin Message-ID: <4B00834C.5030807@FreeBSD.org> Date: Mon, 16 Nov 2009 00:40:12 +0200 From: Alexander Motin User-Agent: Thunderbird 2.0.0.23 (X11/20090901) MIME-Version: 1.0 To: Michael Butler References: <1258320182.00183757.1258306802@10.7.7.3> In-Reply-To: <1258320182.00183757.1258306802@10.7.7.3> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: freebsd-current Subject: Re: switching from legacy to ahci on intel ICH-7M? X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 15 Nov 2009 22:40:18 -0000 Michael Butler wrote: > My current laptop has an AHCI-capable disk controller and SATA disk but, > it appears, the manufacturer has no interest in implementing AHCI in the > BIOS. > > Is there an example of how one might (re-)initialize the controller to > take advantage of AHCI and the disk's NCQ capabilites somewhere? Intel ICH7 datasheet? AFAIR it was described there. Some other vendors allow enabling AHCI just via one of standard AHCI registers, but Intel doesn't. If SATA is not configured as AHCI or RAID by BIOS via custom register, standard AHCI registers are not available. -- Alexander Motin