From owner-svn-src-head@FreeBSD.ORG Wed Jun 17 13:00:25 2009 Return-Path: Delivered-To: svn-src-head@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A3EDF106566B; Wed, 17 Jun 2009 13:00:25 +0000 (UTC) (envelope-from alexander@leidinger.net) Received: from mail.ebusiness-leidinger.de (mail.ebusiness-leidinger.de [217.11.53.44]) by mx1.freebsd.org (Postfix) with ESMTP id 40BDB8FC0C; Wed, 17 Jun 2009 13:00:25 +0000 (UTC) (envelope-from alexander@leidinger.net) Received: from outgoing.leidinger.net (pD9E2D393.dip.t-dialin.net [217.226.211.147]) by mail.ebusiness-leidinger.de (Postfix) with ESMTPSA id 5F7408444EC; Wed, 17 Jun 2009 15:00:19 +0200 (CEST) Received: from webmail.leidinger.net (webmail.leidinger.net [192.168.1.102]) by outgoing.leidinger.net (Postfix) with ESMTP id 48993C6D72; Wed, 17 Jun 2009 15:00:16 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=Leidinger.net; s=outgoing-alex; t=1245243616; bh=vX8wb5+G45Xsk78GSV1H4NUoi4iBvNJXNfaZuryc/o4=; h=Message-ID:Date:From:To:Cc:Subject:References:In-Reply-To: MIME-Version:Content-Type:Content-Transfer-Encoding; b=Vgc3eLuNjahE1L8voxlROeUGLtZbXYa+QDbmigxefWBKi050QTrTYeHpH1ajyBWj/ u6emU8sORyqNgHxjG2ZlkYmApcXo8bA7p1KRNqdQQpIfP+UhVXpUbrbu7VjJRRD3fi x0GlKC9y/4wv9jTzSYEllqQTZaONEjUVrOZBXLwCu8tFIskjPEoQZwjEBAQXfvXOmu J5xaLiwczY3MF+Tm1FNFnapgO2XL0rJfcJeVPmQY9TH4AC55QiDBjdjqCIH6kLF9qd VDckSMM1xXtaWmvAfMlpNnBVyEfxuwhDe31Q2Bx0RinjBagtYhsBVF99tsDiCzqepg velaLnU2rUzNw== Received: (from www@localhost) by webmail.leidinger.net (8.14.3/8.13.8/Submit) id n5HD0FMW048543; Wed, 17 Jun 2009 15:00:15 +0200 (CEST) (envelope-from Alexander@Leidinger.net) Received: from pslux.cec.eu.int (pslux.cec.eu.int [158.169.9.14]) by webmail.leidinger.net (Horde Framework) with HTTP; Wed, 17 Jun 2009 15:00:15 +0200 Message-ID: <20090617150015.18455ggwluk5bcgs@webmail.leidinger.net> X-Priority: 3 (Normal) Date: Wed, 17 Jun 2009 15:00:15 +0200 From: Alexander Leidinger To: Alexander Motin References: <200904292117.n3TLHIpt093110@svn.freebsd.org> In-Reply-To: <200904292117.n3TLHIpt093110@svn.freebsd.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; DelSp="Yes"; format="flowed" Content-Disposition: inline Content-Transfer-Encoding: 7bit User-Agent: Internet Messaging Program (IMP) 4.3.3 / FreeBSD-8.0 X-EBL-MailScanner-Information: Please contact the ISP for more information X-EBL-MailScanner-ID: 5F7408444EC.037ED X-EBL-MailScanner: Found to be clean X-EBL-MailScanner-SpamCheck: not spam, spamhaus-ZEN, SpamAssassin (not cached, score=-1.363, required 6, autolearn=disabled, ALL_TRUSTED -1.44, DKIM_SIGNED 0.00, DKIM_VERIFIED -0.00, TW_SV 0.08) X-EBL-MailScanner-From: alexander@leidinger.net X-EBL-MailScanner-Watermark: 1245848421.20595@R6+KGyj8pS1Lev9sJwRtVg X-EBL-Spam-Status: No Cc: svn-src-head@FreeBSD.org, svn-src-all@FreeBSD.org, src-committers@FreeBSD.org Subject: Re: svn commit: r191674 - in head/sys/dev/ata: . chipsets X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 17 Jun 2009 13:00:26 -0000 Quoting Alexander Motin (from Wed, 29 Apr 2009 21:17:18 +0000 (UTC)): > Author: mav > Date: Wed Apr 29 21:17:18 2009 > New Revision: 191674 > URL: http://svn.freebsd.org/changeset/base/191674 > > Log: > Add experimental support for SATA interface power management. > Feature is controlled by hint.ata.X.pm_level tunable: > 0 - PM disabled, old behaviour, default. > 1 - device is allowed to initiate PM state change, host is passive. > 2 - host initiates PARTIAL state transition every time port is idle. > 3 - host initiates SLUMBER state transition every time port is idle. Did I miss a man-page update for this? If yes, where is it, I would have expected it in ata(4). > PARTIAL state has up to 100us (50us for me) wakeup latency, but for my > ICH8M saves 0.5W of power per drive. SLUMBER state has up to 10ms (3.5ms > for me) wakeup latency, but saves 0.8W of power. > > Modes 2 and 3 are implemented only for AHCI driver now. Does this mean it is for SATA devices only, or is this a feature of the complete controller (ICH5 in my case) and also works with PATA drives? Bye, Alexander. -- BOFH excuse #345: Having to manually track the satellite http://www.Leidinger.net Alexander @ Leidinger.net: PGP ID = B0063FE7 http://www.FreeBSD.org netchild @ FreeBSD.org : PGP ID = 72077137