From: "John Stoffel" <john@stoffel.org>
To: Greg KH <greg@kroah.com>
Cc: Anand Kanaginhal <anand_dk@hotmail.com>,
mjg59@srcf.ucam.org, bhelgaas@google.com,
Linux PCI mailing <linux-pci@vger.kernel.org>,
linux kernel mailing <linux-kernel@vger.kernel.org>,
linux hotplug mailing <linux-hotplug@vger.kernel.org>
Subject: Re: PCIe Hotplugging not working
Date: Sat, 10 Dec 2011 14:36:00 -0500 [thread overview]
Message-ID: <20195.46240.112741.353593@quad.stoffel.home> (raw)
In-Reply-To: <20111209222520.GA24786@kroah.com>
>>>>> "Greg" == Greg KH <greg@kroah.com> 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
prev parent reply other threads:[~2011-12-10 19:36 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <BAY163-W52E309F419E3588206D889FBB30@phx.gbl>
2011-11-29 11:56 ` PCIe Hotplugging not working Anand Kanaginhal
2011-11-29 14:22 ` Greg KH
2011-11-29 17:50 ` Anand Kanaginhal
2011-11-29 22:55 ` Greg KH
2011-11-29 15:17 ` Ludvig Petrossian
2011-11-30 15:40 ` Matthew Garrett
2011-11-30 17:18 ` Anand Kanaginhal
2011-11-30 18:24 ` Matthew Garrett
2011-12-07 17:23 ` Bjorn Helgaas
2011-12-09 12:41 ` Anand Kanaginhal
2011-12-09 12:45 ` Matthew Garrett
2011-12-09 15:03 ` Anand Kanaginhal
2011-12-09 16:42 ` Greg KH
2011-12-09 17:19 ` Anand Kanaginhal
2011-12-09 18:07 ` Greg KH
[not found] ` <BAY163-W154A24444BB398F609767CFBB90@phx.gbl>
2011-12-09 22:25 ` Greg KH
[not found] ` <BAY163-W582FC4C5828B20E9487D3EFBB90@phx.gbl>
2011-12-09 23:24 ` Anand Kanaginhal
2011-12-09 23:45 ` Greg KH
2011-12-10 19:36 ` John Stoffel [this message]
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