Timing Insulation Circuitry for Stable Partial Reconfiguration
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Solution Overview
Problem
In data center environments, updating a platform for programmable integrated circuits (ICs) often renders previously implemented kernels incompatible, requiring time-consuming re-implementation and affecting multiple users, as changes to the platform disrupt the timing of user kernels.
Innovation Solution
Incorporating timing insulation circuitry between the platform and partial reconfiguration regions to isolate the timing of signals, allowing the platform to be modified without affecting kernel compatibility, ensuring that user-specified kernels remain compatible with updated platform versions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the platform is updated to improve functionality or performance, then the platform's capabilities are enhanced, but user kernels become incompatible and require re-implementation
Solution Approach 1:
The system is divided into two independent segments: the platform and the user kernel. The platform can be updated independently in the first partial reconfiguration region while the user kernel remains isolated in the second partial reconfiguration region, protected by timing insulation circuitry. This segmentation allows platform updates without forcing kernel re-implementation.
Solution Approach 2:
Timing insulation circuitry is introduced as an intermediary between the platform and the user kernel. This intermediary isolates timing signals, preventing timing changes in the updated platform from affecting the user kernel's operation, thereby maintaining kernel compatibility despite platform updates.
2Adaptability or versatility
If the platform is modified to add new features, then the platform's functionality is improved, but the timing of user kernels is disrupted
Solution Approach 1:
The reconfiguration device is segmented into distinct regions: the first partial reconfiguration region for platform updates and the second partial reconfiguration region for user kernels. This spatial segmentation allows platform functionality to be enhanced without disrupting kernel timing, eliminating re-implementation delays.
Solution Approach 2:
Timing insulation circuitry acts as a mediator that blocks timing disruptions from propagating from the platform region to the kernel region. This allows the platform to be modified with new features while the user kernel's timing remains stable and unchanged.
3Reliability
If timing insulation circuitry is added to isolate platform and kernel timing, then kernel compatibility is maintained during platform updates, but device complexity increases
Solution Approach 1:
The device is segmented into two independently reconfigurable regions with clearly defined boundaries. The timing insulation circuitry is placed at the boundary, creating a simple and organized structure that maintains kernel compatibility without excessive complexity.
Solution Approach 2:
Timing insulation circuitry is introduced as a minimal intermediary component at the interface between platform and kernel regions. This simple intermediary structure effectively isolates timing signals and maintains kernel compatibility without significantly increasing overall device complexity.
Data Source
AI summary
A device includes a platform implemented in programmable circuitry of the device. The platform is configured to communicate with a host data processing system. The device includes a first partial reconfiguration region implemented in the programmable circuitry and coupled to the platform. The first partial reconfiguration region is reserved for implementing user-specified circuitry. The device includes timing insulation circuitry implemented in the programmable circuitry and configured to isolate timing of signals passing between the platform and the first partial reconfiguration region.