COMMUNICATION PACKET PROCESSOR WITH A LOOK-UP ENGINE TO RETRIEVE CONTEXT INFORMATION FOR A CORE PROCESSOR

摘要

Circuitry (100) is disclosed for processing a communication packet. The circuitry (100) comprises a content-addressable memory (106), a look-up engine (107), and a processor (103). The look-up engine (107) transfers a first selector to the content-addressable memory (106). The content-addressable memory (106) receives and processes the first selector to generate additional selectors. The content-addressable memory (106) processes the additional selectors for matches, and provides results corresponding to the matches. The look-up engine (107) receives the results from the content-addressable memory (106) and retrieves context structures from a context memory (111) based on the results. The look-up engine (107) builds a summation block using the context structures and transfers the summation block. The processor (103) receives and processes the summation block to control handling of the communication packet.