Multi Channel DMA for PCI Express* Intel® FPGA IP Design Example User Guide

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ID 683517
Date 2/06/2022
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Document Table of Contents
Document Table of Contents x
1. Terms and Acronyms 2. Design Example Detailed Description 3. Design Example Quick Start Guide 4. Multi Channel DMA for FPGA IP Design Example User Guide Archives 5. Document Revision History for the Multi Channel DMA for FPGA IP Design Example User Guide
2. Design Example Detailed Description x
2.1. Design Example Overview 2.2. Hardware and Software Requirements 2.3. PIO Using MCDMA Bypass Mode 2.4. Avalon-ST Packet Generate/Check 2.5. Avalon-ST Device-side Packet Loopback 2.6. Avalon-MM DMA 2.7. Traffic Generator and Checker 2.8. External Descriptor Controller
2.3. PIO Using MCDMA Bypass Mode x
2.3.1. Avalon-ST PIO Using MCDMA Bypass Mode 2.3.2. Avalon-MM PIO Using MCDMA Bypass mode
2.3.1. Avalon-ST PIO Using MCDMA Bypass Mode x
2.3.1.1. Four-Port Avalon-ST PIO Using MCDMA Bypass Mode 2.3.1.2. Single-Port Avalon-ST PIO Using MCDMA Bypass Mode
2.3.1.1. Four-Port Avalon-ST PIO Using MCDMA Bypass Mode x
2.3.1.1.1. Simulation Result 2.3.1.1.2. Hardware Test Result
2.3.2. Avalon-MM PIO Using MCDMA Bypass mode x
2.3.2.1. Simulation Results 2.3.2.2. Hardware Test Results
2.4. Avalon-ST Packet Generate/Check x
2.4.1. Four-Port Avalon-ST Packet Generate/Check 2.4.2. Single-Port Avalon-ST Packet Generate/Check
2.4.1. Four-Port Avalon-ST Packet Generate/Check x
2.4.1.1. Simulation Results 2.4.1.2. Hardware Test Results
2.4.2. Single-Port Avalon-ST Packet Generate/Check x
2.4.2.1. Simulation Waveforms 2.4.2.2. Simulation Log
2.5. Avalon-ST Device-side Packet Loopback x
2.5.1. Simulation Results 2.5.2. Hardware Test Results
2.6. Avalon-MM DMA x
2.6.1. Simulation Results 2.6.2. Hardware Test Results
2.7. Traffic Generator and Checker x
2.7.1. Traffic Generator and checker Example Design Register Map
2.8. External Descriptor Controller x
2.8.1. Registers
2.8.1. Registers x
2.8.1.1. GCSR Registers (Base address 64’h00000) 2.8.1.2. QCSR Registers(Base address 64’h10000)
3. Design Example Quick Start Guide x
3.1. Design Example Directory Structure 3.2. Generating the Example Design using Intel® Quartus® Prime 3.3. Simulating the Design Example 3.4. Compiling the Example Design in Intel® Quartus® Prime 3.5. Running the Design Example Application on a Hardware Setup
3.2. Generating the Example Design using Intel® Quartus® Prime x
3.2.1. Procedure
3.3. Simulating the Design Example x
3.3.1. Testbench Overview 3.3.2. Supported Simulators 3.3.3. Example Testbench Flow for DMA Test with Avalon-ST Packet Generate/Check Design Example 3.3.4. Run the Simulation Script 3.3.5. View the Results
3.5. Running the Design Example Application on a Hardware Setup x
3.5.1. Program the FPGA 3.5.2. Quick Start Guide
3.5.2. Quick Start Guide x
3.5.2.1. Software Test Setup 3.5.2.2. Driver Support 3.5.2.3. MCDMA Custom Driver 3.5.2.4. MCDMA DPDK Poll Mode Driver 3.5.2.5. MCDMA Kernel Mode Character Device Driver 3.5.2.6. MCDMA Kernel Mode Network Device Driver
3.5.2.3. MCDMA Custom Driver x
3.5.2.3.1. Prerequisites 3.5.2.3.2. Software Setup 3.5.2.3.3. Run the Reference Example Application 3.5.2.3.4. Testing Bitstream Configuration beyond 256 Channels 3.5.2.3.5. External Descriptor Mode Verification
3.5.2.3.1. Prerequisites x
3.5.2.3.1.1. Configuration Changes from BIOS 3.5.2.3.1.2. External Packages 3.5.2.3.1.3. Set the Boot Parameters
3.5.2.3.2. Software Setup x
3.5.2.3.2.1. Installing the Linux Kernel Driver 3.5.2.3.2.2. Build and Install User Space Library 3.5.2.3.2.3. Enabling VFs and Create Guest VM by Using QEMU 3.5.2.3.2.4. Establish Communication Between Host and QEMU
3.5.2.3.3. Run the Reference Example Application x
3.5.2.3.3.1. Meta Data Test 3.5.2.3.3.2. BAM Test 3.5.2.3.3.3. BAS Test 3.5.2.3.3.4. Packet Gen Test
3.5.2.4. MCDMA DPDK Poll Mode Driver x
3.5.2.4.1. Prerequisites 3.5.2.4.2. Install PMD and Test Application 3.5.2.4.3. Run the Reference Example Application
3.5.2.4.1. Prerequisites x
3.5.2.4.1.1. Set the Boot Parameters 3.5.2.4.1.2. Configuration Changes from BIOS 3.5.2.4.1.3. Install and Build Testpmd
3.5.2.4.2. Install PMD and Test Application x
3.5.2.4.2.1. Create VM Environment
3.5.2.4.3. Run the Reference Example Application x
3.5.2.4.3.1. Example of Verifying on an AVMM Design 3.5.2.4.3.2. BAM Test 3.5.2.4.3.3. BAS Test
3.5.2.5. MCDMA Kernel Mode Character Device Driver x
3.5.2.5.1. Prerequisites 3.5.2.5.2. Software Setup 3.5.2.5.3. Examples
3.5.2.5.1. Prerequisites x
3.5.2.5.1.1. Host Configuration 3.5.2.5.1.2. Set the Boot Parameters
3.5.2.5.2. Software Setup x
3.5.2.5.2.1. Build and Install Kernel Driver 3.5.2.5.2.2. Build and Install Libmcmem 3.5.2.5.2.3. Build Testapp 3.5.2.5.2.4. Configure Kernel Driver 3.5.2.5.2.5. Configure Libmcmem 3.5.2.5.2.6. Configure Testapp
3.5.2.6. MCDMA Kernel Mode Network Device Driver x
3.5.2.6.1. Build and Install Netdev Driver 3.5.2.6.2. Enable VFs if SRIOV is Supported 3.5.2.6.3. Configure the Number of Channels Supported on the Device 3.5.2.6.4. Configure the MTU Value 3.5.2.6.5. Configure the Device Communication 3.5.2.6.6. Configure Transmit Queue Selection Mechanism 3.5.2.6.7. Test Procedure by Using Name Space Environment 3.5.2.6.8. PIO Test
3.5.2.6.6. Configure Transmit Queue Selection Mechanism x
3.5.2.6.6.1. MCDMA Queue Selection 3.5.2.6.6.2. Transmit Packet Steering (XPS) 3.5.2.6.6.3. Default
1. Terms and Acronyms
2. Design Example Detailed Description
3. Design Example Quick Start Guide
4. Multi Channel DMA for FPGA IP Design Example User Guide Archives
5. Document Revision History for the Multi Channel DMA for FPGA IP Design Example User Guide

3.5.2.4.3. Run the Reference Example Application

  1. After the reference application is built, run it:

    $ ./build/mcdma-test -- -h

  2. This command will display the available options in the application as shown in the image below:
  3. Do a PIO test to check if the setup is correct. If successful, the application will show a Pass status.

    [root@BAPVENC011T perfq]# ./build/mcdma-test -- -b 0000:01:00.0 -o

    Here -b should be provided with the correct BDF in the system.

  4. The DPDK driver can be used with the Avalon-ST Packet Generate/Check design example to test the packet generator and checker design.

    The following diagram shows the testing strategy.

    Configuration in examples/mcdma-test/perfq/perfq_app.h

    In the case of static channel mapping, modify the following parameters (ignore these parameters in the case of dynamic channel mapping): 
    • /* PF count starts from 1 */
#define IFC_QDMA_CUR_PF <pf number>
• /* VF count starts from 1. Zero implies PF was used instead of VF */
#define IFC_QDMA_CUR_VF <vf number>
• /* Number of PFs */
#define IFC_QDMA_PFS <number of PFs>
/* Channels available per PF */
#define IFC_QDMA_PER_PF_CHNLS <number of channels per PF>
• /* Channels available per VF */
#define IFC_QDMA_PER_VF_CHNLS <number of channels per VF>
• /* Number of VFs per PF */
#define IFC_QDMA_PER_PF_VFS <number of VFs per PF>

    perfq_app command line parameters:

    Command: 
    $ ./build/mcdma-test -m 8192 --file-prefix=pf0 --\
 -b 0000:01:00.0 -p 32768 -d 2 -c 1 -a 2 -l 5 -z -n
    Configuration:
    1. 1 channel (-c 1)
    2. Packet generator bidirectional (-z)
    3. Payload length of 64 bytes in each descriptor (-p 32768)
    4. Transfer the data every 5 seconds (-l 5)
    5. Dump the progress log every second (-d 2)
    6. Configure the number of channels in ED (-n)
    7. Number of threads to be used for DMA purpose. (-a 2)
    Note: This hardware test was run with the Intel® Stratix® 10 GX H-tile PCIe Gen3 x16 configuration.
  5. The DPDK driver can also be used with the Avalon-ST Device-side Packet Loopback design example to test loopback.

    The following diagram shows the testing strategy.

    Command: $ ./build/mcdma-test -m 8192 --file-prefix=pf0 -l 0-15 -- -b 0000:01:00.0 -p 32768 -d 2 -c 1 -a 2 -l 5 -i

    Configuration:
    1. 1 channel (-c 1)
    2. Packet generator bidirectional (-i)
    3. Payload length of 64 bytes in each descriptor (-p 32768)
    4. Transfer the data every 5 seconds (-l 5)
    5. Dump the progress log every second (-d 2)
    Note: This hardware test was run with the Intel® Stratix® 10 GX H-tile PCIe Gen3 x16 configuration.
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