Scalable Scatter-Gather DMA Intel® FPGA IP Design Example User Guide

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ID 823179
Date 4/30/2025
Public
Document Table of Contents
Document Table of Contents x
1. Design Example Description 2. Quick Start Guide 3. Document Revision History for the Scalable Scatter-Gather DMA Intel® FPGA IP Design Example User Guide
1. Design Example Description x
1.1. H2D ST to D2H ST Loopback Design Example
1.1. H2D ST to D2H ST Loopback Design Example x
1.1.1. DMA PCIe* Mode Design Example 1.1.2. DMA SoC Mode Design Example
2. Quick Start Guide x
2.1. Directory Structure 2.2. Generating the Design Example 2.3. Simulating the Design Example 2.4. Testbench 2.5. Compiling the Design Example 2.6. Hardware and Software Requirements 2.7. Running the Design Example
2.3. Simulating the Design Example x
2.3.1. DMA SoC Mode Example Design 2.3.2. DMA PCIe Mode Example Design
2.3.2. DMA PCIe Mode Example Design x
2.3.2.1. Running Simulation using VCS* MX 2.3.2.2. Running Simulation Using QuestaSim* 2.3.2.3. Running Simulation using Xcelium 2.3.2.4. Running Simulation using Riviera-PRO
2.4. Testbench x
2.4.1. DMA SoC Mode H2D ST to D2H ST Loopback Example Testbench 2.4.2. DMA PCIe Mode H2D ST to D2H ST Loopback & H2D MM Example Testbench
2.4.2. DMA PCIe Mode H2D ST to D2H ST Loopback & H2D MM Example Testbench x
2.4.2.1. Design Example Testbench
2.7. Running the Design Example x
2.7.1. Running the DMA SoC Mode H2D ST to D2H ST Loopback Design Example 2.7.2. Running the DMA PCIe Mode H2D ST to D2H ST Loopback Design Example
2.7.1. Running the DMA SoC Mode H2D ST to D2H ST Loopback Design Example x
2.7.1.1. Building the Software Application Project for Nios® V/m Processor 2.7.1.2. Programming the Example Design into the Development Board
2.7.2. Running the DMA PCIe Mode H2D ST to D2H ST Loopback Design Example x
2.7.2.1. Installing the Linux Kernel Driver 2.7.2.2. Running the Loopback Design Example
2.7.2.2. Running the Loopback Design Example x
2.7.2.2.1. Testing H2D ST to D2H ST Loopback 2.7.2.2.2. Testing H2D MM
1. Design Example Description
2. Quick Start Guide
3. Document Revision History for the Scalable Scatter-Gather DMA Intel® FPGA IP Design Example User Guide

2.3.2. DMA PCIe Mode Example Design

The Enable PIPE Mode Simulation option of GTS AXI Streaming IP is enabled by default for FASTSIM + PIPE mode when you generate the design example.

In the FASTSIM mode, a simplified PMA abstract model, along with strategies for simulation duration reduction, are employed to improve the overall simulation time of GTS AXI Streaming IP-based design. The PMA model has a compile-time switch “IP7521SERDES_UX_SIMSPEED” to use a simplified PMA abstract model. If the switch is not defined by the compile environment, then the mode uses a detailed or existing model.

In PIPE mode, the simulation speed is further enhanced by excluding the transceiver component, where the PIPE interface of the GTS AXI Streaming IP connects to the PIPE interface of the link partner. Additionally, this feature provides the necessary hooks to use third-party PCI Express* VIPs/BFMs instead of the Root Port model provided with the example design.


Section Content
Running Simulation using VCS* MX
Running Simulation Using QuestaSim
Running Simulation using Xcelium
Running Simulation using Riviera-PRO

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