Third-Party Tools - 3.0 English

AXI Bridge for PCI Express Gen3 Subsystem Product Guide (PG194)

Document ID
PG194
Release Date
2022-11-16
Version
3.0 English

This section describes third-party software tools that can be useful in debugging.

LSPCI (Linux)

LSPCI is available on Linux platforms and allows you to view the PCI Express® device configuration space. LSPCI is usually found in the /sbin directory. LSPCI displays a list of devices on the PCI buses in the system. See the LSPCI manual for all command options. Some useful commands for debugging include:

  • lspci -x -d [<vendor>]:[<device>]

    This displays the first 64 bytes of configuration space in hexadecimal form for the device with vendor and device ID specified (omit the -d option to display information for all devices). The default Vendor/Device ID for Xilinx cores is 10EE:6012. Here is a sample of a read of the configuration space of a Xilinx device:

    > lspci -x -d 10EE:6012
    81:00.0 Memory controller: Xilinx Corporation: Unknown device 6012
    00: ee 10 12 60 07 00 10 00 00 00 80 05 10 00 00 00
    10: 00 00 80 fa 00 00 00 00 00 00 00 00 00 00 00 00
    20: 00 00 00 00 00 00 00 00 00 00 00 00 ee 10 6f 50
    30: 00 00 00 00 40 00 00 00 00 00 00 00 05 01 00 00
    

    Included in this section of the configuration space are the Device ID, Vendor ID, Class Code, Status and Command, and Base Address Registers.

  • lspci -xxxx -d [<vendor>]:[<device>]

    This displays the extended configuration space of the device. It can be useful to read the extended configuration space on the root and look for the Advanced Error Reporting (AER) registers. These registers provide more information on why the device has flagged an error (for example, it might show that a correctable error was issued because of a replay timer timeout).

  • lspci -k

    Shows kernel drivers handling each device and kernel modules capable of handling it (works with kernel 2.6 or later).