Stratix® 10 Configuration via Protocol (CvP) Implementation User Guide

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ID 683704
Date 10/02/2024
Public
Document Table of Contents
Document Table of Contents x
1. Overview 2. CvP Description 3. CvP Topologies 4. Design Considerations 5. CvP Driver and Registers 6. Understanding the Design Steps for CvP Initialization and Update Mode in Stratix® 10 7. Stratix® 10 Configuration via Protocol (CvP) Implementation User Guide Archives 8. Document Revision History
1. Overview x
1.1. Benefits of Using CvP 1.2. CvP System 1.3. CvP Modes
1.3. CvP Modes x
1.3.1. CvP Limitations and Restrictions
1.3.1. CvP Limitations and Restrictions x
1.3.1.1. CvP Error Recovery
2. CvP Description x
2.1. Configuration Images 2.2. CvP Modes 2.3. Compression Features 2.4. Pin Description
2.2. CvP Modes x
2.2.1. CvP Initialization Mode 2.2.2. CvP Update Mode
3. CvP Topologies x
3.1. Single Endpoint 3.2. Multiple Endpoints
4. Design Considerations x
4.1. Designing CvP for an Open System 4.2. Designing CvP for a Closed System
4.1. Designing CvP for an Open System x
4.1.1. FPGA Power Supplies Ramp Time Requirement 4.1.2. PCIe* Wake-Up Time Requirement
4.1.2. PCIe* Wake-Up Time Requirement x
4.1.2.1. For CvP Initialization Mode 4.1.2.2. For CvP Update Mode
5. CvP Driver and Registers x
5.1. CvP Driver Support 5.2. CvP Driver Flow 5.3. VSEC Registers for CvP
5.3. VSEC Registers for CvP x
5.3.1. Vendor Specific Capability Header Register 5.3.2. Vendor Specific Header Register 5.3.3. Intel Marker Register 5.3.4. User Configurable Device/Board ID Register 5.3.5. CvP Status Register 5.3.6. CvP Mode Control Register 5.3.7. CvP Data Registers 5.3.8. CvP Programming Control Register 5.3.9. CvP Credit Register
6. Understanding the Design Steps for CvP Initialization and Update Mode in Stratix® 10 x
6.1. Implementation of CvP Initialization Mode 6.2. Implementation of CvP Update Mode
6.1. Implementation of CvP Initialization Mode x
6.1.1. Generating the Synthesis HDL files for Avalon® Streaming Stratix® 10 Hard IP for PCI Express 6.1.2. Setting up the CvP Parameters in Device and Pin Options 6.1.3. Compiling the Design 6.1.4. Converting the SOF File 6.1.5. Bringing up the Hardware
6.1.5. Bringing up the Hardware x
6.1.5.1. Installing the Upstream Open Source CvP Driver in Linux Systems 6.1.5.2. Modifying MSEL/DIP switch on Stratix® 10 FPGA Development Kit 6.1.5.3. Programming CvP Images
6.2. Implementation of CvP Update Mode x
6.2.1. Instantiating the PCIe* Hard IP 6.2.2. Setting Up the CvP Parameters 6.2.3. Setting up the Base Revision 6.2.4. Setting up and Compile the Updated Revision 6.2.5. Converting the SOF file of the Updated Revision 6.2.6. Programming the Core RBF file from the Updated Revision via PCIe Link
6.2.3. Setting up the Base Revision x
6.2.3.1. Creating a Reserved Core Partition 6.2.3.2. Defining a Logic Lock Region 6.2.3.3. Compiling and Exporting the Root Partition
1. Overview
2. CvP Description
3. CvP Topologies
4. Design Considerations
5. CvP Driver and Registers
6. Understanding the Design Steps for CvP Initialization and Update Mode in Stratix® 10
7. Stratix® 10 Configuration via Protocol (CvP) Implementation User Guide Archives
8. Document Revision History

5.3.9. CvP Credit Register

The credit registers slow down the transmission of the CvP data to handle back pressure when there is no buffer space available within the configuration system. The crediting mechanism handles the back pressure from the configuration system. The total credits register increments each time an additional 4k buffer is available.
Table 13.  CvP Credits Register (Byte Offset: 0xBC8)
Bits Reset Value Access Description
[31:16] 0x00 RO Reserved.
[15:8] 0x00 RO Least significant 8 bits of the total number of 4k credits granted.
[7:0] 0x00 RO Reserved.
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