Return-path: Received: from mail-gx0-f16.google.com ([209.85.217.16]:49303 "EHLO mail-gx0-f16.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752094AbYJWCnA (ORCPT ); Wed, 22 Oct 2008 22:43:00 -0400 Received: by gxk9 with SMTP id 9so607336gxk.13 for ; Wed, 22 Oct 2008 19:42:59 -0700 (PDT) Message-ID: <43e72e890810221942w398fd7aco3042ee5456453ec1@mail.gmail.com> (sfid-20081023_044306_278117_822D4096) Date: Wed, 22 Oct 2008 19:42:59 -0700 From: "Luis R. Rodriguez" To: linux-wireless Subject: Re: Power saving on mac80211 Cc: "Zhu Yi" In-Reply-To: <43e72e890810171810t1c65642g998db601cfe2a390@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 References: <43e72e890810171810t1c65642g998db601cfe2a390@mail.gmail.com> Sender: linux-wireless-owner@vger.kernel.org List-ID: On Fri, Oct 17, 2008 at 6:10 PM, Luis R. Rodriguez wrote: > * What do we have to do, if anything at all, for PCI Express (PCIe) > Active State Power Management (ASPM)? Just FYI I digged into this. Technically speaking we don't have to do anything for this so long as the kernel supports it and we did get the support as of 2.6.26. Its still marked as experimental and won't get this removed until it gets more exposure. When enabled some devices may encounter *interesting* issues and because of this some drivers may have a few routines / checks / do things a bit differently when enabled. See e1000 as an example. Luis