Re: pci-e hotplug on Intel SE7520HPAF2 board

[Tom Duffy <tduffy@sun.com>]

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[ moving discussion to pcihpd-discuss ]

On Tue, 2005-03-08 at 09:33 -0800, Greg KH wrote:
> So the power is already enabled?

I guess so, although the LED does not illuminate unless I cold boot it
with a card inserted.

> > [root@intlhotp-1 ~]# echo 1 > /sys/bus/pci/slots/3/power
> > acpiphp_glue: No new device found
> > [root@intlhotp-1 ~]# echo 1 > /sys/bus/pci/slots/4/power
> > acpiphp_glue: No new device found
> 
> That's not good.  But you are using the acpi driver, not the pciexpress
> driver, is that what you mean to do?

I was hoping that I could use the ACPI driver since the pci express
native one will not work on the nvidia CK804 which is the real reason I
am trying out pci express hotplug.

But, it seems using the native driver does make the Intel board happier.

[root@intlhotp-1 ~]# rmmod acpiphp
[root@intlhotp-1 ~]# modprobe pciehp
pciehp: add_host_bridge: status 5
pciehp: acpi_pciehprm:\_SB_.PCI0.EPB0 OSHP fails=0x5
pciehp: acpi_pciehprm:\_SB_.PCI0.EPB0 OSHP fails=0x5
pciehp: acpi_pciehprm:\_SB_.PCI0.EPB0 OSHP fails=0x5
pciehp: acpi_pciehprm:\_SB_.PCI0.EPB0 OSHP fails=0x5
pciehp: acpi_pciehprm:\_SB_.PCI0.EPB0 OSHP fails=0x5
pciehp: acpi_pciehprm:\_SB_.PCI0.EPB0 OSHP fails=0x5
pciehp: acpi_pciehprm:\_SB_.PCI0.EPB0 OSHP fails=0x5
pciehp: acpi_pciehprm:\_SB_.PCI0.EPB0 OSHP fails=0x5
pciehp: acpi_pciehprm:\_SB_.PCI0.EPC0 OSHP fails=0x5
pciehp: acpi_pciehprm:\_SB_.PCI0.EPC0 OSHP fails=0x5
pciehp: acpi_pciehprm:\_SB_.PCI0.EPC0 OSHP fails=0x5
pciehp: acpi_pciehprm:\_SB_.PCI0.EPC0 OSHP fails=0x5
pciehp: acpi_pciehprm:\_SB_.PCI0.EPC0 OSHP fails=0x5
pciehp: acpi_pciehprm:\_SB_.PCI0.EPC0 OSHP fails=0x5
pciehp: acpi_pciehprm:\_SB_.PCI0.EPC0 OSHP fails=0x5
pciehp: acpi_pciehprm:\_SB_.PCI0.EPC0 OSHP fails=0x5

Not sure what those messages are telling me...

But, I can enable the slot:
[root@intlhotp-1 ~]# cat /sys/bus/pci/slots/4/power
0
[root@intlhotp-1 ~]# echo 1 > /sys/bus/pci/slots/4/power
PCI: Enabling device 0000:08:00.0 (0000 -> 0003)
PCI: Enabling device 0000:08:00.1 (0000 -> 0003)
[root@intlhotp-1 ~]# cat /sys/bus/pci/slots/4/power
1
[root@intlhotp-1 ~]# lspci
<snip>
08:00.0 Ethernet controller: Intel Corp.: Unknown device 105f (rev 03)
08:00.1 Ethernet controller: Intel Corp.: Unknown device 105f (rev 03)
<snip>

Cool.  The driver loads and works.

But, I would like to get the ACPI driver working...

-tduffy

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