Method and apparatus for processing commands in a queue coupled to a system or memory

摘要

A queue, either in software or hardware, with a plurality of layers with each layer having a plurality of locations. The queue receives a command, and compares the command with the pending commands in the queue to determine if the command should be processed, and, if the command should be processed then store the command in one of the plurality of locations in one of the plurality of layers; and forward the command to a system or a memory in response to a priority.