From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751611Ab1LIWZk (ORCPT ); Fri, 9 Dec 2011 17:25:40 -0500 Received: from out2.smtp.messagingengine.com ([66.111.4.26]:46700 "EHLO out2.smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750785Ab1LIWZi (ORCPT ); Fri, 9 Dec 2011 17:25:38 -0500 X-Sasl-enc: n4jjKykcZRe8dcL8hF8H7DK1YuE/HNOupvHVnNGvePXZ 1323469537 Date: Fri, 9 Dec 2011 14:25:20 -0800 From: Greg KH To: Anand Kanaginhal Cc: mjg59@srcf.ucam.org, bhelgaas@google.com, Linux PCI mailing , linux kernel mailing , linux hotplug mailing Subject: Re: PCIe Hotplugging not working Message-ID: <20111209222520.GA24786@kroah.com> References: <20111130154022.GA1411@srcf.ucam.org> <20111130182423.GA4831@srcf.ucam.org> <20111209124524.GA3488@srcf.ucam.org> <20111209180708.GA10768@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Dec 09, 2011 at 01:17:53PM -0800, Anand Kanaginhal wrote: > > > > Date: Fri, 9 Dec 2011 10:07:08 -0800 > > From: greg@kroah.com > > To: anand_dk@hotmail.com > > CC: mjg59@srcf.ucam.org; bhelgaas@google.com; linux-pci@vger.kernel.org; > linux-kernel@vger.kernel.org; linux-hotplug@vger.kernel.org > > Subject: Re: PCIe Hotplugging not working > > > > On Fri, Dec 09, 2011 at 09:19:39AM -0800, Anand Kanaginhal wrote: > > > 1. With the above setup, If I hotplug card c1 and/or c2, will my driver > probe > > > get invoked. > > > > Stop right here. Please get your pci hotplug controller driver working > > first, for your platform. That seems to be the problem. After that, > > the rest of your questions should just resolve themselves. > Thank you Greg for your assistance, perhaps it would be little more helpful, if > you could tell me the basis on which you drew the conclusion. I am no kernel > expert :( As your driver's callbacks aren't being called, that's probably why this isn't working. Please make sure your pci hotplug driver is working first. Try turning on and off the power to the card slot (in the sysfs directory for the slot) and see if that's working. You also have failed to say exactly what pci hotplug controller you have in your system, what is it? You have to have one, and the driver loaded for it, for any of this to work at all. greg k-h