R-tile Avalon® Streaming Intel® FPGA IP for PCI Express* Design Example User Guide

ID 683544
Date 6/20/2022
Public

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Document Table of Contents

2.7.1. Running the PIO Design Example

  1. Navigate to ./software/user/example under the design example directory.
  2. Compile the design example application:

    $ make

  3. Run the test:

    $ sudo ./intel_fpga_pcie_link_test

    You can run the Intel® FPGA IP PCIe* link test in manual or automatic mode. Choose from:
    • In automatic mode, the application automatically selects the device. The test selects the Intel PCIe* device with the lowest BDF by matching the Vendor ID. The test also selects the lowest available BAR.
    • In manual mode, the test queries you for the bus, device, and function number and BAR.

    For the Intel® Agilex™ Development Kit, you can determine the BDF by typing the following command:

    $ lspci -d 1172:

  4. Here are sample transcripts for automatic and manual modes:

    Automatic mode:

    Intel FPGA PCIe Link Test - Automatic Mode
    Version 2.0
    0: Automatically select a device
    1: Manually select a device
    ***************************************************
    >0
    Opened a handle to BAR 0 of a device with BDF 0x3800
    ***************************************************
    0: Link test - 100 writes and reads
    1: Write memory space
    2: Read memory space
    3: Write configuration space
    4: Read configuration space
    5: Change BAR for PIO
    6: Change device
    7: Quit program
    ***************************************************
    > 0
    Doing 100 writes and 100 reads . . 
    Number of write errors:     0
    Number of read errors:      0
    Number of DWORD mismatches: 0

Manual mode:

Intel FPGA PCIe Link Test
Version 2.0
0: Automatically select a device
1: Manually select a device
****************************************************
> 1
Enter bus number, in hex:
> 4b
Enter device number, in hex:
> 0
BDF is 0x4b00
B:D.F, in hex, is 4b:0.0
Enter BAR number (-1 for none):
> 0
Opened a handle to BAR 0 of a device with BDF 0x4b00