From mboxrd@z Thu Jan 1 00:00:00 1970 From: Aurelien Jarno Subject: Re: IAMT broken by commit 82776a4bcd7aa5fbcd2e6339b3ce88b727dd40ab Date: Mon, 31 Jan 2011 12:45:58 +0100 Message-ID: <20110131114558.GA28303@volta.aurel32.net> References: <20100530010219.GA20368@volta.aurel32.net> <8DD2590731AB5D4C9DBF71A877482A900118D29D0A@orsmsx509.amr.corp.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: "Kirsher, Jeffrey T" , "netdev@vger.kernel.org" To: "Allan, Bruce W" Return-path: Received: from hall.aurel32.net ([88.191.126.93]:45553 "EHLO hall.aurel32.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752784Ab1AaLp5 (ORCPT ); Mon, 31 Jan 2011 06:45:57 -0500 Content-Disposition: inline In-Reply-To: <8DD2590731AB5D4C9DBF71A877482A900118D29D0A@orsmsx509.amr.corp.intel.com> Sender: netdev-owner@vger.kernel.org List-ID: Hi, On Tue, Jun 01, 2010 at 04:33:27PM -0700, Allan, Bruce W wrote: > I will look into this in the next couple days. >=20 > -----Original Message----- > From: Aurelien Jarno [mailto:aurelien@aurel32.net]=20 > Sent: Saturday, May 29, 2010 6:02 PM > To: Allan, Bruce W; Kirsher, Jeffrey T > Cc: netdev@vger.kernel.org > Subject: IAMT broken by commit 82776a4bcd7aa5fbcd2e6339b3ce88b727dd40= ab >=20 > Hi, >=20 > I have recently upgrade my kernel, and found that Intel AMT support i= s > not working anymore as expected. I have configured IAMT so that is=20 > always available, even when the machine is off ("Desktop: ON in S0, S= 3, > S4-5"). >=20 > On recent kernels, IAMT support does not work after the machine has=20 > been powered-off. Even worse, it also goes into this state when I try > to reboot it. >=20 > I have done a bisect and got this commit: >=20 > |=A0commit 82776a4bcd7aa5fbcd2e6339b3ce88b727dd40ab > | Author: Bruce Allan > | Date: Fri Aug 14 14:35:33 2009 +0000 > |=20 > | e1000e: WoL does not work on 82577/82578 with manageability ena= bled > | =20 > | With manageability (Intel AMT) enabled via BIOS, PHY wakeup doe= s not get > | configured on newer parts which use PHY wakeup vs. MAC wakeup w= hich causes > |=A0 WoL to not work. The driver should configure PHY wakeup whet= her or not > | manageability is enabled. > | =20 > | Signed-off-by: Bruce Allan > | Signed-off-by: Jeff Kirsher > | Signed-off-by: David S. Miller >=20 > I have tried to revert it on recent kernels (2.6.34), and IAMT is the= n > working as expected. My machine is using a Gigabyte EQ45M-S2 motherbo= ard > with an 82567LM-3 ethernet chip (8086:10de), that is a different mode= l > than the one of the original problem. >=20 > I do wonder if the changes in the patch should not only be done on so= me=20 > chip models, and I will appreciate any help in fixing this issue. >=20 Just a short mail to say this problem is still present in 2.6.38-rc2. The same solution still applies, that is reverting the above commit. Note that reverting the first hunk only is enough to get it working again. --=20 Aurelien Jarno GPG: 1024D/F1BCDB73 aurelien@aurel32.net http://www.aurel32.net