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C-4
External I/O Expansion Unit for SPARC Enterprise M
x
000 Servers Installation and Service Manual • April 2011
C.2.2
Device Map for PCI-X Cards
This is an example of a complete device path for a PCI-X card in a PCI-X boat:
IOU_slot
is the IOU slot to which the link card for a External I/O Expansion Unit is
connected. See
and
shows the device path for a PCI-X card. The device path is the
accumulation of ports from the IOU slot (item 1) to the PCI card (item 5).
TABLE C-3
Parts of a Device Path for a PCI Express I/O Boat
Item
Description
Device Tree Path Example
1
IOU slot
/pci@
xy
,700000
1a
link cards
(Nothing is displayed for link cards. This is normal behavior.
They are not visible to the OpenBoot PROM.)
2
/pci@0
/pci@
xy
,700000/pci@0
3
/pci@9
/pci@
xy
,700000/pci@0/pci@9
4
/pci@0
/pci@
xy
,700000/pci@0/pci@9/pci@0
5
/pci@9
/pci@
xy
,700000/pci@0/pci@9/pci@0/pci@9
6
PCI card
/pci@
xy
,700000/pci@0/pci@9/pci@0/pci@9/
abc@n
/
IOU_slot
/pci@0/pci@8/pci@0/
abc@n
Summary of Contents for SPARC Enterprise M4000
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