From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Hemminger Subject: Re: [PATCH] e1000: the power down when running ifdown command Date: Sat, 31 Oct 2009 10:58:38 -0700 Message-ID: <20091031105838.0d4b59a2@nehalam> References: <4AEC05E8.40600@miraclelinux.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: e1000-devel@lists.sourceforge.net, netdev@vger.kernel.org, jesse.brandeburg@intel.com, john.ronciak@intel.com, jeffrey.t.kirsher@intel.com, Andrew Morton , svaidy@linux.vnet.ibm.com, davem@davemloft.net To: Naohiro Ooiwa Return-path: In-Reply-To: <4AEC05E8.40600@miraclelinux.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: e1000-devel-bounces@lists.sourceforge.net List-Id: netdev.vger.kernel.org On Sat, 31 Oct 2009 18:39:52 +0900 Naohiro Ooiwa wrote: > Hi All > > I resend my patch. > Sorry, my previous mail lacked an explanation. > > > The e1000 driver doesn't let the power down when running ifdown command. > So, I set to the D3hot state of a PCI device at the end of e1000_close(). > > With this modification, e1000 driver reduces power by ifdown. > It's about 6 watts when I measured a total power of one server machine > in my environment. > > I tested this patch. The result is good enough to me. > > Could you please check my patch ? > If I should have other considerations, please tell me. > Does this work with Wake On Lan? ------------------------------------------------------------------------------ Come build with us! The BlackBerry(R) Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9 - 12, 2009. Register now! http://p.sf.net/sfu/devconference