Accelerator Functional Unit Developer’s Guide for Intel® FPGA Programmable Acceleration Card

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ID 683129
Date 7/20/2020
Public
Document Table of Contents
Document Table of Contents x
1. About this Document 2. Introduction 3. Getting Started with Platform Configuration 4. The Accelerator Functional Unit (AFU) 5. Developing AFUs with the OPAE SDK 6. AFU In-System Debug 7. Accelerator Functional Unit Developer's Guide for Intel® FPGA Programmable Acceleration Card Archives 8. Document Revision History for Accelerator Functional Unit Developer's Guide for Intel® FPGA Programmable Acceleration Card
1. About this Document x
1.1. Intended Audience 1.2. Conventions 1.3. Acronym List for Accelerator Functional Unit Developer’s Guide 1.4. Acceleration Glossary 1.5. Related Documentation
2. Introduction x
2.1. Getting Started with AFU Development 2.2. Base Knowledge and Skills Prerequisites
2.1. Getting Started with AFU Development x
2.1.1. Development Environment References 2.1.2. FPGA Tools and IP Requirements
4. The Accelerator Functional Unit (AFU) x
4.1. AFU Design Components 4.2. Basic Building Blocks
5. Developing AFUs with the OPAE SDK x
5.1. Overview of the OPAE SDK 5.2. Overview of the OPAE Platform for AFUs 5.3. OPAE SDK Design Flow for AFU Development
5.2. Overview of the OPAE Platform for AFUs x
5.2.1. Platform Device Classes 5.2.2. The Platform Interface Manager (PIM)
5.2.1. Platform Device Classes x
5.2.1.1. The clocks Device Class 5.2.1.2. The cci-p Device Class 5.2.1.3. The power Device Class 5.2.1.4. The error Device Class 5.2.1.5. The hssi Device Class 5.2.1.6. The local-memory Device Class
5.2.2. The Platform Interface Manager (PIM) x
5.2.2.1. Interface Transforms 5.2.2.2. Pipelining 5.2.2.3. Clock Crossing
5.3. OPAE SDK Design Flow for AFU Development x
5.3.1. Overview of the Design Flow 5.3.2. Design Flow Details
5.3.1. Overview of the Design Flow x
5.3.1.1. Minimal Flow Example 5.3.1.2. General Flow Example
5.3.1.1. Minimal Flow Example x
5.3.1.1.1. Specify the Platform Configuration 5.3.1.1.2. Design the AFU 5.3.1.1.3. Specify the Build Configuration 5.3.1.1.4. Generate the AF Build Environment 5.3.1.1.5. Generate the AF
5.3.1.2. General Flow Example x
5.3.1.2.1. Generate the ASE Build Environment 5.3.1.2.2. Verify the AFU with ASE
5.3.2. Design Flow Details x
5.3.2.1. Specify the Platform Configuration 5.3.2.2. Design the AFU 5.3.2.3. AFU Design Guidelines 5.3.2.4. Partial Reconfiguration Design Guidelines 5.3.2.5. Specify the Build Configuration 5.3.2.6. Generate the ASE Build Environment 5.3.2.7. Verify the AFU with ASE 5.3.2.8. Generate the AF Build Environment 5.3.2.9. Generate the AF
5.3.2.1. Specify the Platform Configuration x
5.3.2.1.1. Specify the AFU's UUID 5.3.2.1.2. Request a Top-level Interface 5.3.2.1.3. Extend a Top-level Interface 5.3.2.1.4. Request Device Interface Pipelining 5.3.2.1.5. Request Device Interface Clock-crossing 5.3.2.1.6. Specify a Requested Device as Optional 5.3.2.1.7. Specify AFU User Clock Timing
5.3.2.2. Design the AFU x
5.3.2.2.1. Start with a Top-level Module Template 5.3.2.2.2. Including the Platform Device Interface Definitions 5.3.2.2.3. Using the AFU UUID Header File 5.3.2.2.4. Clock Abstraction for the cci-p Device Interface 5.3.2.2.5. Generating an AF Build Environment for Source Development
5.3.2.3. AFU Design Guidelines x
5.3.2.3.1. General Guidelines 5.3.2.3.2. Utilizing Clock Resources 5.3.2.3.3. Interfacing with the FPGA Interface Manager (FIM)
6. AFU In-System Debug x
6.1. Remote Signal Tap Setup and Use
6.1. Remote Signal Tap Setup and Use x
6.1.1. Instrumenting the AFU Design for Signal Tap 6.1.2. Enable Remote Debug and Signal Tap 6.1.3. Generate the Remote Debug Enabled AF 6.1.4. Prepare the Remote Debug Host 6.1.5. Running a Remote Debug Session 6.1.6. Remote Debug Guidelines 6.1.7. Troubleshooting Remote Debug Connections
6.1.5. Running a Remote Debug Session x
6.1.5.1. Connect to the AFU Target 6.1.5.2. Using Signal Tap with a Remote Target Connection 6.1.5.3. Stimulating the Target AFU for In-System Debug 6.1.5.4. Disconnect from the AFU Target
6.1.5.3. Stimulating the Target AFU for In-System Debug x
6.1.5.3.1. Accessing the AFU in Shared Mode
1. About this Document
2. Introduction
3. Getting Started with Platform Configuration
4. The Accelerator Functional Unit (AFU)
5. Developing AFUs with the OPAE SDK
6. AFU In-System Debug
7. Accelerator Functional Unit Developer's Guide for Intel® FPGA Programmable Acceleration Card Archives
8. Document Revision History for Accelerator Functional Unit Developer's Guide for Intel® FPGA Programmable Acceleration Card

5.2.1.2. The cci-p Device Class

The Intel® FPGA PAC platform offers the cci-p device class with the struct interface. The structures defined in the following package in the OPAE SDK: 
$OPAE_PLATFORM_ROOT/sw/<opae-version>/platforms/platform_if/rtl/device_if/ccip_if_pkg.sv

To use the structures defined in ccip_if_pkg.sv include platform_if.vh in your AFU source files. For example, `include "platform_if.vh".

The CCI-P interface is used by the AFU to access host memory and to respond to MMIO requests from the host. It is composed of three command/response channels:
  • Channel 0 - It is used by the AFU for host memory read requests and responses. Channel 0’s response port is also used for receiving MMIO read and write requests from the host.
  • Channel 1 - It is used by the AFU for host memory write requests and responses. It is also used for issuing write fences and interrupts.
  • Channel 2 - It is used by the AFU for MMIO read responses back to the host.

The CCI-P interface and protocol are documented in the CCI-P Reference Manual.

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