F-Tile Avalon® Streaming Intel® FPGA IP for PCI Express* Design Example User Guide

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ID 683372
Date 7/14/2022
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Document Table of Contents
Document Table of Contents x
1. Acronyms 2. Design Example Description 3. Quick Start Guide 4. F-Tile Avalon Streaming Intel FPGA IP for PCI Express Design Example User Guide Archives 5. Revision History for the F-Tile Avalon® Streaming Intel® FPGA IP for PCI Express* Design Example User Guide
2. Design Example Description x
2.1. Programmed Input/Output Design Example 2.2. Single Root I/O Virtualization (SR-IOV) Design Example 2.3. Performance Design Example
2.1. Programmed Input/Output Design Example x
2.1.1. Programmed Input/Output Design Example Functional Description 2.1.2. Programmed Input/Output Design Example Simulation Testbench
2.1.1. Programmed Input/Output Design Example Functional Description x
2.1.1.1. F-Tile Avalon-ST IP for PCI Express Hard IP (DUT) 2.1.1.2. PIO Application (APPS) 2.1.1.3. On-Chip Memory (MEM) 2.1.1.4. F-Tile Reference and System PLL Clocks IP 2.1.1.5. Reset Release IP
2.1.1.2. PIO Application (APPS) x
2.1.1.2.1. Scheduler 2.1.1.2.2. Read Write Module 2.1.1.2.3. Avalon-MM Interface 2.1.1.2.4. Completion Module 2.1.1.2.5. Width Adapter
2.2. Single Root I/O Virtualization (SR-IOV) Design Example x
2.2.1. Single Root I/O Virtualization (SR-IOV) Design Example Functional Description 2.2.2. Single Root I/O Virtualization (SR-IOV) Design Example Simulation Testbench
2.2.1. Single Root I/O Virtualization (SR-IOV) Design Example Functional Description x
2.2.1.1. F-Tile Avalon-ST IP for PCI Express Hard IP (DUT) 2.2.1.2. SR-IOV Applications (APPS)
2.2.1.2. SR-IOV Applications (APPS) x
2.2.1.2.1. Access Parser 2.2.1.2.2. Access Router 2.2.1.2.3. Completion 2.2.1.2.4. PF Segram 2.2.1.2.5. VF Segram 2.2.1.2.6. F-Tile Reference and System PLL Clocks IP 2.2.1.2.7. Reset Release IP
2.3. Performance Design Example x
2.3.1. Performance Design Example Functional Description 2.3.2. Performance Design Example Simulation Testbench
3. Quick Start Guide x
3.1. Directory Structure 3.2. Generating the Design Example 3.3. Simulating the Design Example 3.4. Compiling the Design Example 3.5. Hardware and Software Requirements 3.6. Installing the Linux Kernel Driver 3.7. Running the Design Example
3.3. Simulating the Design Example x
3.3.1. Testbench
3.3.1. Testbench x
3.3.1.1. Test Driver Module 3.3.1.2. PIO Design Example Testbench 3.3.1.3. SR-IOV Design Example Testbench 3.3.1.4. Performance Design Example Testbench
3.7. Running the Design Example x
3.7.1. Running the PIO Design Example 3.7.2. Running the SR-IOV Design Example 3.7.3. Running the Performance Design Example
1. Acronyms
2. Design Example Description
3. Quick Start Guide
4. F-Tile Avalon Streaming Intel FPGA IP for PCI Express Design Example User Guide Archives
5. Revision History for the F-Tile Avalon® Streaming Intel® FPGA IP for PCI Express* Design Example User Guide

3.3.1.3. SR-IOV Design Example Testbench

The figure below shows the SR-IOV design example simulation design hierarchy. The tests for the SR-IOV design example are performed by the task called sriov_test, which is defined in altpcietb_bfm_cfbp.sv.

Figure 24. SR-IOV Design Example Simulation Design Hierarchy
The SR-IOV testbench supports up to two Physical Functions (PFs) and 32 Virtual Functions (VFs) per PF. The testbench starts with link training and then accesses the configuration space of the IP for enumeration. After that, it performs the following steps:
  1. Send a memory write request to a PF followed by a memory read request to read back the same data for comparison. If the read data matches the write data, it is a Pass. This test is performed by the task called my_test (defined in altpcietb_bfm_cfbp.v). This test is repeated twice for each PF.
  2. Send a memory write request to a VF followed by a memory read request to read back the same data for comparison. If the read data matches the write data, it is a Pass. This test is performed by the task called cfbp_target_test (defined in altpcietb_bfm_cfbp.v). This test is repeated for each VF.
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