Patent ID: 6820165
Filing Date: 2004-11-16
Classification: G06F

Abstract:
In a computer system having one or more processors and one or more peripheral devices connected to an Input/Output (I/O) bus, an I/O bridge coupled to the I/O bus and configured to interface between the one or more processors and the one or more peripheral devices, the I/O bridge comprising:a queue for buffering information received from the one or more processors; and a transaction engine operably coupled to the queue, the transaction engine configured to place information buffered at the queue onto the I/O bus for receipt by a targeted peripheral device, wherein the transaction engine: generates an attribute message that includes a tag field and a requester function number field, loads the tag field with a selected value, loads the requester function number field with a selected one of a plurality of values, and places the attribute message including the selected tag and requester function number values onto the I/O bus for receipt by the targeted I/O device.