END-TO-END FLOW CONTROL IN SYSTEM ON CHIP INTERCONNECTS

摘要

Provided is an end-to-end flow control management for a system on chip interface. As tokens are injected into agents arranged in a computer network, the input point for the token is dynamically changed such that tokens are not always injected into the same agent. Additionally or alternatively, as tokens are injected into a token ring, the tokens are initially not activated until a predetermined event occurs (e.g., after a specific number of hops). Additionally or alternatively, also provided is a free pool manager that can keep at least some high priority slots available by consuming lower priority slots first.

主权项

1. A system, comprising:
a processor configured to select a first agent and a second agent from a plurality of agents in a computer network; and a token allocator configured to inject a first token into the first agent and a second token into the second agent, wherein the first token and the second token comprise respective priority request identifiers and the processor is further configured to process the first token and the second token based on its priority request identifier.