Method, system, and program for determining system configuration

A system for determining the configuration of a computer system, comprising:

• a planar board;
• a planar bus included on the planar board;
• planar devices attached to the planar board via the planar bus;
• one configuration memory for each planar board;
• a planar configuration memory indicating addresses for each planar device capable of being attached to the planar bus;
• means for sending a read command to the address of each planar device indicated in the planar configuration memory to determine if each planar device is available;
• means for reading a configuration memory for each available planar device to determine configuration information and if there are addresses of attached devices accessible through the planar device;
• and
• means for sending a read command to the address of each attached device indicated in the configuration memory of the planar device to determine configuration information for each attached device and if there are further attached devices accessible through the attached device, wherein a read command is sent to the address of any attached device indicated in any configuration memory to determine configuration information and whether there are any further attached devices and accompanying configuration memories to consider.

An article of manufacture for use in determining the configuration of a computer system having a planar board, a planar bus and planar devices attached thereto, the article of manufacture comprising program logic that is capable of causing a configuration processor to perform:

• reading a planar configuration memory indicating addresses for each planar device capable of being attached to the planar board;
• sending a read command to the address of each planar device indicated in the planar configuration memory to determine if each planar device is available;
• reading a configuration memory for each available planar device to determine configuration information and if there are addresses of attached devices accessible through the planar device;
• and
• sending a read command to the address of each attached device indicated in the configuration memory for the planar device to determine configuration information for each attached device and if there are further attached devices accessible through the attached device, wherein a read command is sent to the address of any attached device indicated in any configuration memory to determine configuration information and whether there are any further attached devices and accompanying configuration memories to consider.