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

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ID 683372
Date 12/17/2021
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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. Programmed Input/Output Design Example Functional Description 2.3. Programmed Input/Output Design Example Simulation Testbench 2.4. Single Root I/O Virtualization (SR-IOV) Design Example 2.5. Single Root I/O Virtualization (SR-IOV) Design Example Functional Description 2.6. Single Root I/O Virtualization (SR-IOV) Design Example Simulation Testbench
2.2. Programmed Input/Output Design Example Functional Description x
2.2.1. F-Tile Avalon-ST IP for PCI Express Hard IP (DUT) 2.2.2. PIO Application (APPS) 2.2.3. On-Chip Memory (MEM) 2.2.4. F-Tile Reference and System PLL Clocks IP 2.2.5. Reset Release IP
2.2.2. PIO Application (APPS) x
2.2.2.1. Scheduler 2.2.2.2. Read Write Module 2.2.2.3. Avalon-MM Interface 2.2.2.4. Completion Module 2.2.2.5. Width Adapter
2.5. Single Root I/O Virtualization (SR-IOV) Design Example Functional Description x
2.5.1. F-Tile Avalon-ST IP for PCI Express Hard IP (DUT) 2.5.2. SR-IOV Applications (APPS)
2.5.2. SR-IOV Applications (APPS) x
2.5.2.1. Access Parser 2.5.2.2. Access Router 2.5.2.3. Completion 2.5.2.4. PF Segram 2.5.2.5. VF Segram 2.5.2.6. F-Tile Reference and System PLL Clocks IP 2.5.2.7. Reset Release IP
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. Installing the Linux Kernel Driver 3.6. 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
3.6. Running the Design Example x
3.6.1. Running the PIO Design Example 3.6.2. Running the SR-IOV 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

2.2.2.2. Read Write Module

Prepare the Avalon-MM write or read sequence for the Avalon-MM Interface.
  • Write sequence: Data is aligned by the Barrel Shifter and passed to aligned data FIFO. The write state machine extracts the address, burst count, FBE/LBE and generate Avalon-MM write command. The command is then stored to the Avalon-MM command FIFO and eventually passed to the Avalon-MM Interface. Maximum write burst count allowed is 8 as decided from the aligned data FIFO depth.
  • Read sequence: The read state machine decodes the combination of Type1 read and Type2 read based on the PREPROC CMD. Next it generates the Avalon-MM command accordingly for each Type1 or Type2 read. Concurrently, the CPL command is generated for each AVMM read command and stored to the CPL CMD FIFO. In the event of waitrequest by the MEM device, Avalon-MM command FIFO can hold up to 16 data cycles.
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