PCIe Stream Dispatcher for Dynamic Buffer Load Balancing
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Solution Overview
Problem
Integrated circuits face routing congestion due to communication bandwidth demands, particularly in systems using static routing techniques, which can lead to inefficient packet distribution across multiple streams.
Innovation Solution
Incorporating a load balancing stream dispatcher that monitors congestion metrics to dynamically remap functions across multiple streams, ensuring a more balanced distribution of packets based on real-time traffic conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If static routing techniques are used, then device complexity is reduced, but routing congestion increases due to communication bandwidth demands
Solution Approach 1:
The patent implements dynamic routing by allowing the stream dispatcher to remap functions to different streams based on real-time congestion metrics. The system transitions from static, fixed routing configurations to dynamic, adaptive routing that responds to changing traffic conditions, thereby reducing routing congestion while managing device complexity through automated decision-making.
Solution Approach 2:
The patent introduces feedback mechanisms where the stream dispatcher monitors congestion metrics from multiple streams and uses this information to make informed routing decisions. The feedback loop enables the system to detect congestion conditions and adjust packet distribution accordingly, resolving the contradiction between simplified routing and congestion avoidance.
2Object-affected harmful factors
If dynamic routing is implemented, then routing congestion is reduced, but device complexity increases due to monitoring and remapping requirements
Solution Approach 1:
The stream dispatcher is designed as a multi-functional component that performs packet classification, congestion monitoring, stream selection, and packet redirection. By consolidating these functions into a single universal component, the patent manages device complexity while achieving effective congestion reduction through dynamic routing.
Solution Approach 2:
The system implements self-service routing where the stream dispatcher autonomously monitors congestion metrics and makes routing decisions without external intervention. This automation reduces the need for complex external control mechanisms, managing overall system complexity while maintaining effective dynamic routing capabilities.
3Power
If packets are distributed across multiple streams, then communication bandwidth utilization is improved, but packet distribution efficiency decreases under static routing
Solution Approach 1:
The patent dynamically changes routing parameters based on real-time congestion metrics. The stream dispatcher adjusts packet distribution across multiple streams by modifying routing decisions in response to changing traffic conditions, thereby improving both bandwidth utilization and packet distribution efficiency simultaneously through adaptive parameter adjustment.
Data Source
AI summary
Systems, methods, and circuitry for load balancing on communication interfaces are provided. A receiver may include an integrated circuit device which may include a communication interface, such as a Peripheral Component Interconnect Express (PCIe) interface. The integrated circuit device may receive packets and provide the packets to an application program. The integrated circuit device may include multiple buffers for providing the packets to the application program. The integrated circuit device may distribute the packets to the buffers based on functions associated with the packets. In some cases, a buffer may become overloaded based on an increased volume of packets associated with a function. A load balancing stream dispatcher may monitor each of the buffers, identify congestion metrics, and remap the functions to the buffers based on the congestion metrics. In these ways, the load balancing stream dispatcher may provide a technique for efficiently distributing packets on the communication interface.