From: Ludvig Petrossian <lyudvig.petrosyan@desy.de>
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 15:17:44 +0000 [thread overview]
Message-ID: <4ED4F798.9020106@desy.de> (raw)
In-Reply-To: <BAY163-W47DD39095DA3EB108AA3F2FBB30@phx.gbl>
On 29/11/11 12:56, 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/
> 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 ?
>
> I have tried various kernel version, Currently I am trying on 2.6.38.12 (UBUNTU flavor).
> First is there anything missing ? Also Please give me some pointers and debug direction.
>
> Thanks
> Anand
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-pci" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
Hi Anand
Did You enable the pcie hotplug driver (pciehp)
One can do it adding the next options to the /boot/grub/menu.lst
pciehp.pciehp_force=1 pciehp.pciehp_debug=1
(example of my menu.lst: kernel /boot/vmlinuz-2.6.32-28-generic
root=UUID30631e1-99a3-46d3-bf52-f4ca23c6b6ef ro pciehp.pciehp_force=1
pciehp.pciehp_debug=1 acpi=off noapic console=tty0 console=ttyS0 quiet )
so You can see the pciehp outputs in /var/log/kern.log
regards
Ludwig
WARNING: multiple messages have this Message-ID (diff)
From: Ludvig Petrossian <lyudvig.petrosyan@desy.de>
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 16:17:44 +0100 [thread overview]
Message-ID: <4ED4F798.9020106@desy.de> (raw)
In-Reply-To: <BAY163-W47DD39095DA3EB108AA3F2FBB30@phx.gbl>
On 29/11/11 12:56, 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/
> 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 ?
>
> I have tried various kernel version, Currently I am trying on 2.6.38.12 (UBUNTU flavor).
> First is there anything missing ? Also Please give me some pointers and debug direction.
>
> Thanks
> Anand
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-pci" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
Hi Anand
Did You enable the pcie hotplug driver (pciehp)
One can do it adding the next options to the /boot/grub/menu.lst
pciehp.pciehp_force=1 pciehp.pciehp_debug=1
(example of my menu.lst: kernel /boot/vmlinuz-2.6.32-28-generic
root=UUID=330631e1-99a3-46d3-bf52-f4ca23c6b6ef ro pciehp.pciehp_force=1
pciehp.pciehp_debug=1 acpi=off noapic console=tty0 console=ttyS0 quiet )
so You can see the pciehp outputs in /var/log/kern.log
regards
Ludwig
next prev parent reply other threads:[~2011-11-29 15:17 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
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 [this message]
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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