From: Greg KH <greg@kroah.com>
To: Anand Kanaginhal <anand_dk@hotmail.com>
Cc: 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: Tue, 29 Nov 2011 14:22:14 +0000 [thread overview]
Message-ID: <20111129142214.GC14845@kroah.com> (raw)
In-Reply-To: <BAY163-W47DD39095DA3EB108AA3F2FBB30@phx.gbl>
On Tue, Nov 29, 2011 at 03:56:12AM -0800, Anand Kanaginhal wrote:
>
>
> I am trying to get PCIe endpoint hot - plugging working
>
> The Set up is such that there is one endpoint (our custom device) connected to PCI switch PLX 8609 8 port 8 lane switch.
> 1. I have my driver module compiled, copied into /lib/modules/`uname -r`/kernel/drivers/char/
Why is a pci driver a "char" driver? Do you have a pointer to the
source of this?
> 2. I run depmod and "modules.pcimap" also got updated with my module.
>
> However
> if I unplug and plug in the endpoint, my driver .probe and .remove functions
> are not being invoked. Is there something more to be done at the bus
> level to get the driver to hot plug ?
You need a pci hotplug controller driver, is that loaded? That is what
is responsible for eventually calling your remove function.
> I have tried various kernel version, Currently I am trying on 2.6.38.12 (UBUNTU flavor).
We can't help you with distro-specific kernels, please use a kernel.org
kernel and we will be glad to help you out.
greg k-h
WARNING: multiple messages have this Message-ID (diff)
From: Greg KH <greg@kroah.com>
To: Anand Kanaginhal <anand_dk@hotmail.com>
Cc: 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: Tue, 29 Nov 2011 23:22:14 +0900 [thread overview]
Message-ID: <20111129142214.GC14845@kroah.com> (raw)
In-Reply-To: <BAY163-W47DD39095DA3EB108AA3F2FBB30@phx.gbl>
On Tue, Nov 29, 2011 at 03:56:12AM -0800, Anand Kanaginhal wrote:
>
>
> I am trying to get PCIe endpoint hot - plugging working
>
> The Set up is such that there is one endpoint (our custom device) connected to PCI switch PLX 8609 8 port 8 lane switch.
> 1. I have my driver module compiled, copied into /lib/modules/`uname -r`/kernel/drivers/char/
Why is a pci driver a "char" driver? Do you have a pointer to the
source of this?
> 2. I run depmod and "modules.pcimap" also got updated with my module.
>
> However
> if I unplug and plug in the endpoint, my driver .probe and .remove functions
> are not being invoked. Is there something more to be done at the bus
> level to get the driver to hot plug ?
You need a pci hotplug controller driver, is that loaded? That is what
is responsible for eventually calling your remove function.
> I have tried various kernel version, Currently I am trying on 2.6.38.12 (UBUNTU flavor).
We can't help you with distro-specific kernels, please use a kernel.org
kernel and we will be glad to help you out.
greg k-h
next prev parent reply other threads:[~2011-11-29 14:22 UTC|newest]
Thread overview: 37+ 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 11:56 ` Anand Kanaginhal
2011-11-29 14:22 ` Greg KH [this message]
2011-11-29 14:22 ` Greg KH
2011-11-29 17:50 ` Anand Kanaginhal
2011-11-29 17:50 ` Anand Kanaginhal
2011-11-29 22:55 ` Greg KH
2011-11-29 22:55 ` Greg KH
2011-11-30 12:00 ` Anand Kanaginhal
2011-11-29 15:17 ` Ludvig Petrossian
2011-11-29 15:17 ` Ludvig Petrossian
2011-11-30 15:40 ` Matthew Garrett
2011-11-30 17:18 ` Anand Kanaginhal
2011-11-30 17:18 ` Anand Kanaginhal
2011-11-30 18:24 ` Matthew Garrett
2011-12-07 17:23 ` Bjorn Helgaas
2011-12-07 17:23 ` Bjorn Helgaas
2011-12-09 12:41 ` Anand Kanaginhal
2011-12-09 12:41 ` Anand Kanaginhal
2011-12-09 12:45 ` Matthew Garrett
2011-12-09 12:45 ` Matthew Garrett
2011-12-09 15:03 ` Anand Kanaginhal
2011-12-09 15:03 ` Anand Kanaginhal
2011-12-09 16:42 ` Greg KH
2011-12-09 16:42 ` Greg KH
2011-12-09 17:19 ` Anand Kanaginhal
2011-12-09 17:19 ` Anand Kanaginhal
2011-12-09 18:07 ` Greg KH
2011-12-09 18:07 ` Greg KH
[not found] ` <BAY163-W154A24444BB398F609767CFBB90@phx.gbl>
2011-12-09 22:25 ` Greg KH
2011-12-09 22:25 ` Greg KH
[not found] ` <BAY163-W582FC4C5828B20E9487D3EFBB90@phx.gbl>
2011-12-09 23:24 ` Anand Kanaginhal
2011-12-09 23:24 ` Anand Kanaginhal
2011-12-09 23:45 ` Greg KH
2011-12-09 23:45 ` Greg KH
2011-12-10 19:36 ` John Stoffel
2011-12-10 19:36 ` John Stoffel
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