From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Message-ID: <20195.46240.112741.353593@quad.stoffel.home> Date: Sat, 10 Dec 2011 14:36:00 -0500 From: "John Stoffel" To: Greg KH Cc: Anand Kanaginhal , mjg59@srcf.ucam.org, bhelgaas@google.com, Linux PCI mailing , linux kernel mailing , linux hotplug mailing Subject: Re: PCIe Hotplugging not working In-Reply-To: <20111209222520.GA24786@kroah.com> References: <20111130154022.GA1411@srcf.ucam.org> <20111130182423.GA4831@srcf.ucam.org> <20111209124524.GA3488@srcf.ucam.org> <20111209180708.GA10768@kroah.com> <20111209222520.GA24786@kroah.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: >>>>> "Greg" == Greg KH writes: Greg> 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 :( Greg> As your driver's callbacks aren't being called, that's probably why this Greg> isn't working. Greg> Please make sure your pci hotplug driver is working first. Try turning Greg> on and off the power to the card slot (in the sysfs directory for the Greg> slot) and see if that's working. Greg> You also have failed to say exactly what pci hotplug controller Greg> you have in your system, what is it? You have to have one, and Greg> the driver loaded for it, for any of this to work at all. And it would make sense to test your hotplug setup with a known working card that *does* support hotplugging properly already. Then you know your setup works and you can then concentrate on getting your new card working. John