* Krishna Kothapalli <krishna_sunitha@xxxxxxxxxxx>: > > > o The pciehp's debug output. We can get this as follows. > # /sbin/modprobe pciehp pciehp_debug > # dmesg | grep pciehp > pciehp 0000:00:09.0:pcie02: Hotplug Controller: > pciehp 0000:00:09.0:pcie02: Seg/Bus/Dev/Func/IRQ : 0000:00:09.0 IRQ 2295 > pciehp 0000:00:09.0:pcie02: Vendor ID : 0x8086 > pciehp 0000:00:09.0:pcie02: Device ID : 0x3410 > pciehp 0000:00:09.0:pcie02: Subsystem ID : 0x0000 > pciehp 0000:00:09.0:pcie02: Subsystem Vendor ID : 0x0000 > pciehp 0000:00:09.0:pcie02: PCIe Cap offset : 0x90 > pciehp 0000:00:09.0:pcie02: Slot Capabilities : 0x0302005f > pciehp 0000:00:09.0:pcie02: Physical Slot Number : 96 Hm, this is merely an observation, but the slot number here seems wacky compared to the one that acpiphp reports later below. Did we ever get a dmidecode from this machine? Also, once you insert the card, what happens if you: # echo 1 > /sys/bus/pci/slots/96/power Does that do anything? > [root@localhost test]# /sbin/modprobe acpiphp debug > [root@localhost test]# dmesg | grep acpiphp > acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5 > acpiphp_glue: found PCI-to-PCI bridge at PCI 0000:00:09.0 > acpiphp_glue: found ACPI PCI Hotplug slot 2 at PCI 0000:09:00 > acpiphp: Slot [2] registered Here we see that ACPI thinks it's slot 2, not 96. > acpiphp_glue: Bus 0000:09 has 1 slot > acpiphp_glue: Total 1 slots > [root@localhost test]# > [root@localhost test]# ls -lt /sys/bus/pci/slots > total 0 > drwxr-xr-x 2 root root 0 2009-02-04 09:59 2 > --- Insert PCI express card in the slot > [root@localhost test]# dmesg | grep acpiphp > [root@localhost test]# lspci | wc > 105 1284 9203 > [root@localhost test]# ls -lt /sys/bus/pci/slots/2/ > total 0 > -r--r--r-- 1 root root 4096 2009-02-04 10:01 adapter > -r--r--r-- 1 root root 4096 2009-02-04 10:01 address > -rw-r--r-- 1 root root 4096 2009-02-04 10:01 attention > -r--r--r-- 1 root root 4096 2009-02-04 10:01 latch > -rw-r--r-- 1 root root 4096 2009-02-04 10:01 power Can you echo a 1 into the power file above? > [root@localhost test]# > [root@localhost test]# /sbin/rmmod acpiphp > [root@localhost test]# dmesg | grep acpiphp > acpiphp: Slot [2] unregistered > acpiphp: release_slot - physical_slot = 2 > [root@localhost test]# Thanks. /ac -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
