User's Manual

AIX Location Codes
The basic formats of the AIX location codes are:
 For non-SCSI devices/drives
AB-CD-EF-GH
 For SCSI devices/drives
AB-CD-EF-G,H
For planars, cards, and non-SCSI devices the location code is defined as:
AB-CD-EF-GH
| | | |
| | | Device/FRU/Port ID
| | Connector ID
| devfunc Number, Adapter Number or Physical Location
Bus Type or PCI Parent Bus
 The AB value identifies a bus type or PCI parent bus as assigned by the
firmware.
 The CD value identifies adapter number, adapter's devfunc number, or physical
location. The devfunc number is defined as the PCI device number times 8, plus
the function number.
 The EF value identifies a connector.
 The GH value identifies a port, address, device, or FRU.
Adapters and cards are identified with just AB-CD.
The possible values for AB are:
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
00 Processor bus
01 ISA bus
02 EISA bus
03 MCA bus
04 PCI bus used in the case where the PCI bus cannot be identified
05 PCMCIA buses
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.
5-4 7043 43P Series Service Guide