PCIe Driver for SDN SoC Software Hardware Co-Validation
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Solution Overview
Problem
Traditional methods for verifying Software-Defined Network (SDN) System-on-Chip (SoC) hardware fail to ensure seamless integration with post-silicon hardware and do not effectively verify if the hardware can perform the features defined by SDN, as they lack a robust approach for testing SDN software and hardware together.
Innovation Solution
A method and system for software and hardware co-validation using PCIe with TCP sockets and messages as the communication medium, enabling communication between software and hardware modules, intercepting low-level instructions, generating and managing socket connections, and translating messages into PCIe transmission layer packets for comprehensive testing of SDN SoC.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional verification methods are used for SDN SoC hardware, then hardware verification can be performed, but seamless integration with post-silicon hardware cannot be ensured and SDN software-hardware integration cannot be effectively verified
Solution Approach 1:
The patent introduces a PCIe driver as an intermediary component that bridges software and hardware verification. The driver translates software-defined network instructions into hardware-specific commands, enabling seamless integration verification between SDN software stacks and post-silicon hardware without requiring direct coupling of software and hardware verification environments.
Solution Approach 2:
The verification system is segmented into distinct layers: software stack, PCIe driver, and hardware module. This segmentation allows independent verification of each layer while maintaining integration validation through the PCIe driver interface, enabling both hardware verification and software-hardware integration verification to occur simultaneously in separate but coordinated processes.
2Ease of manufacture
If software and hardware are tested separately, then individual component testing is simplified, but comprehensive SDN functionality verification is compromised
Solution Approach 1:
The PCIe driver serves multiple functions simultaneously: it acts as a communication interface for software-hardware interaction, a translation layer for instruction conversion, and a verification bridge for integrated testing. This multi-functionality enables comprehensive SDN functionality verification while maintaining the simplicity of separate component testing through a unified driver interface.
3Reliability
If a robust software-hardware co-validation approach is implemented, then SDN integration verification is improved, but system complexity increases
Solution Approach 1:
The PCIe driver implements self-service by automatically translating software instructions into hardware-specific commands and managing the communication protocol between software and hardware layers. This automation reduces the complexity of co-validation setup and execution, as the driver handles integration verification tasks without requiring complex external testbench configurations or manual intervention.
Data Source
AI summary
A software and hardware co-validation for SDN SoC method and system are able to be used to test software and hardware using PCIe (or another implementation) utilizing sockets and messages as the communication medium. An entire software stack as well as hardware are able to be tested. Additionally, multiple chips (SoCs) are able to be programmed at the same time, not just one, as in previous implementations.