Programmable NIC Reconfiguration Without Network Traffic Disruption
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Solution Overview
Problem
Current programmable integrated circuits (ICs) face limitations in dynamically reconfiguring network-attached acceleration functions without disrupting network traffic or requiring extensive recompilation and reconfiguration of user-specified circuits.
Innovation Solution
A programmable IC is implemented with a static region for basic networking functions and a dynamic region that can be reconfigured to insert, remove, or swap user-specified circuits for compute, storage, and networking acceleration functions, allowing for continuous operation and reduced recompilation needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the entire programmable IC is reconfigured to update network acceleration functions, then the functionality can be updated, but network traffic is disrupted and data loss occurs
Solution Approach 1:
The programmable IC is divided into multiple reconfigurable regions, allowing selective reconfiguration of specific acceleration functions without affecting the entire device. This segmentation enables updated functionality while maintaining network traffic continuity in non-reconfigured regions.
Solution Approach 2:
The patent implements dynamic partial reconfiguration capability, where specific regions of the programmable IC can be reconfigured at runtime without shutting down the entire device. This dynamic approach allows network acceleration functions to be updated while the device continues to process network traffic.
2Adaptability or versatility
If comprehensive reconfiguration is performed to implement new acceleration functions, then adaptability improves, but reconfiguration time increases
Solution Approach 1:
By segmenting the programmable IC into independent reconfigurable regions, the patent enables parallel configuration of different regions. This reduces total reconfiguration time compared to configuring the entire device sequentially, while still providing comprehensive adaptability for new acceleration functions.
Solution Approach 2:
The patent implements configuration data preparation and validation processes that occur before actual reconfiguration execution. This preliminary action reduces the time required during the actual reconfiguration event, enabling faster deployment of new acceleration functions.
3Adaptability or versatility
If the programmable IC is reconfigured during operation, then functionality can be updated, but configuration complexity increases
Solution Approach 1:
The patent introduces a configuration management system that acts as an intermediary between the user and the reconfigurable hardware. This intermediary handles the complexity of region selection, configuration data preparation, and reconfiguration coordination, simplifying the user experience while enabling sophisticated runtime reconfiguration capabilities.
Solution Approach 2:
The patent implements status monitoring and feedback mechanisms that track the state of reconfigurable regions and provide information about ongoing reconfiguration processes. This feedback system manages complexity by providing real-time visibility into the reconfiguration state, enabling better coordination and error handling.
Data Source
AI summary
A device includes a platform implemented, at least in part, in a static region of programmable circuitry and a dynamic region of programmable circuitry configured to implement user-specified circuitry in communication with the platform. The platform is configured to establish and maintain a first communication link with a host data processing system and a second communication link with a network while at least a portion of the dynamic region of programmable circuitry is dynamically reconfigured.