From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pb0-f46.google.com ([209.85.160.46]:55118 "EHLO mail-pb0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755501Ab2EJDpI (ORCPT ); Wed, 9 May 2012 23:45:08 -0400 Received: by pbbrp8 with SMTP id rp8so1333994pbb.19 for ; Wed, 09 May 2012 20:45:07 -0700 (PDT) Date: Wed, 9 May 2012 20:45:03 -0700 From: Greg KH To: Francois Rigaut Cc: Jiang Liu , Nico Schottelius , Yinghai Lu , linux-pci@vger.kernel.org, LKML Subject: Re: Linux Support for Thunderbolt using Apple Monitor Message-ID: <20120510034503.GB18543@kroah.com> References: <4FA358ED.1080705@gmail.com> <20120504184851.GB11223@kroah.com> <4FA4AA3E.1070903@gmail.com> <4FA544B1.3070705@gmail.com> <20120505164819.GA21599@schottelius.org> <4FA5EE63.1050208@gmail.com> <20120509160555.GA13437@kroah.com> <4FAB1EAF.2090305@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <4FAB1EAF.2090305@gmail.com> Sender: linux-pci-owner@vger.kernel.org List-ID: On Thu, May 10, 2012 at 11:49:35AM +1000, Francois Rigaut wrote: > Greg, > > I went ahead and contacted John Ronciak at intel. > He gave a presentation on thunderbolt at the 2011 linux plumber conference. > Here is his answer: > > "You are correct that most if not all issues related to Thunderbolt > on Linux is due to BIOS problems. We have not seen anything other > BIOS issues regarding Thunderbolt issues on Linux. When the BIOS is > working correctly the hot-plug PCIe works fine wrt the kernel. These > are things that cannot be fixed in the drivers or in kernel > infrastructure. So newer systems are going to be better than older > ones due to these BIOS issues." Thanks for letting us know, so there's nothing we can do for these machines, and we just have to hope the next-generation machines get this correct. greg k-h