|A P P E N D I X A|
Mapping Device Path Names
The physical address represents a physical characteristic that is unique to the device. Examples of physical addresses include the bus address and the slot number. The slot number indicates where the device is installed.
You reference a physical device by the node identifier--agent ID (AID). The AID ranges from 0 to 31 in decimal notation (0 to 1f in hexadecimal). In the device path beginning with ssm@0,0 the first number, 0, is the node ID.
Each CPU/Memory board can have either two or four CPUs, depending on your configuration. Each CPU/Memory board has up to four banks of memory. Each bank of memory is controlled by one memory management unit (MMU), which is the CPU. The following code example shows a device tree entry for a CPU and its associated memory:
There are up to four CPUs on each CPU/Memory board (TABLE A-1):
TABLE A-2 lists the types of I/O assemblies, the number of slots each I/O assembly has, and the systems the I/O assembly types are supported on.
TABLE A-3 lists the number of I/O assemblies per system and the I/O assembly name.
TABLE A-4 lists the AIDs for the two I/O controllers in each I/O assembly.
TABLE A-5 lists, in hexadecimal notation, the slot number, I/O assembly name, device path of each I/O assembly, the I/O controller number, and the bus.
In TABLE A-5, note the following:
FIGURE A-1 illustrates the Sun Fire 6800 PCI I/O assembly physical slot designations for I/O assemblies IB6 through IB9.
FIGURE A-2 illustrates the comparable information for the Sun Fire 4810/4800/3800 systems.
1. Use TABLE A-6 for Sun Fire 3800 systems or to determine the:
2. Use FIGURE A-3 to locate the slot based on I/O assembly and the physical slot number.
TABLE A-6 lists, in hexadecimal notation, the slot number, I/O assembly name, device path of each I/O assembly, the I/O controller number, and the bus.
In TABLE A-6, note the following:
FIGURE A-3 illustrates the Sun Fire 3800 CompactPCI physical slot designations.
TABLE A-7 lists, in hexadecimal notation, the slot number, I/O assembly name, device path of each I/O assembly, the I/O controller number, and the bus for Sun Fire 6800/4810/4800 systems.
In TABLE A-7 note the following:
FIGURE A-4 illustrates the Sun Fire 4810 and 4800 CompactPCI physical slot designations.