IBM E10, Service Manual, Page: 19 / 279

02 EISA bus
03 MCA bus
04 PCI bus used in the case where the PCI bus cannot be identified
05 PCMCIA busses
xy For PCI adapters where X is equal to or greater than 1. The x and y are characters in the
range of 0-9, A-H, J-N, P-Z (O, I, and lower case are omitted) and are equal to the parent
bus’s IBM, aix-loc Open Firmware Property.
The possible values for CD depend on the adapter/card.
For pluggable PCI adapters/cards, CD is the device’s devfunc number (PCI device number times 8, plus
the function number). The C and D are characters in the range of 0-9, and A-F (hex numbers). This allows
the location code to uniquely identify multiple adapters on individual PCI cards.
For pluggable ISA adapters, CD is equal to the order the ISA cards defined/configured either by SMIT or
the ISA Adapter Configuration Service Aid.
For integrated ISA adapters, CD is equal to a unique code identifying the ISA adapter. In most cases this
is equal to the adapter’s physical location code. In cases where a physical location code is not available,
CD will be FF.
EF is the connector ID. It is used to identify the adapter’s connector that a resource is attached to.
GH is used to identify a port, device, or FRU. For example:
v
For async devices GH defines the port on the fanout box. The values are 00 to 15.
v
For a diskette drive H defines which diskette drive 1 or 2. G is always 0.
v
For all other devices GH is equal to 00.
For integrated adapter, EF-GH is the same as the definition for a pluggable adapter. For example, the
location code for a diskette drive is 01-D1-00-00. A second diskette drive is 01-D1-00-01.
For SCSI the location code is defined as:
AB-CD-EF-G,H
| | | | |
| | | | Logical Unit address of the SCSI Device
| | | Control Unit Address of the SCSI Device
| | Connector ID
| devfunc Number, Adapter Number or Physical Location
Bus Type or PCI Parent Bus
Where AB-CD-EF are the same as non-SCSI devices.
G defines the control unit address of the device. Values of 0 to 15 are valid.
H defines the logical unit address of the device. Values of 0 to 255 are valid.
There is also a bus location code that is generated as ’00-XXXXXXXX’ where XXXXXXXX is equivalent to
the node’s unit address.
Examples of physical location codes displayed by AIX are:
v
Processor Card in slot 1 of planar 1
P1-C1
v
Memory DIMM in system planar slot 2
Locations
2105 Model Exx/Fxx and Expansion Enclosure Locations, CHAPTER 7
3