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.. SPDX-License-Identifier: BSD-3-Clause
Copyright(c) 2016 Canonical Limited. All rights reserved.
dpdk-pmdinfo Application
========================
The ``dpdk-pmdinfo.py`` tool is a Data Plane Development Kit (DPDK) utility that
can dump a PMDs hardware support info in the JSON format.
Synopsis
--------
::
dpdk-pmdinfo.py [-h] [-p] [-v] ELF_FILE [ELF_FILE ...]
Arguments
---------
.. program:: dpdk-pmdinfo.py
.. option:: -h, --help
Show the inline help.
.. option:: -p, --search-plugins
In addition of ``ELF_FILE``\s and their linked dynamic libraries,
also scan the DPDK plugins path.
.. option:: -v, --verbose
Display warnings due to linked libraries not found
or ELF/JSON parsing errors in these libraries.
Use twice to show debug messages.
.. option:: ELF_FILE
DPDK application binary or dynamic library.
Any linked ``librte_*.so`` library (as reported by ``ldd``) will also be analyzed.
Can be specified multiple times.
Environment Variables
---------------------
.. envvar:: LD_LIBRARY_PATH
If specified, the linked ``librte_*.so`` libraries will be looked up here first.
Examples
--------
Get the complete info for a given driver:
.. code-block:: console
$ dpdk-pmdinfo.py /usr/bin/dpdk-testpmd | \
jq '.[] | select(.name == "net_ice_dcf")'
{
"name": "net_ice_dcf",
"params": "cap=dcf",
"kmod": "* igb_uio | vfio-pci",
"pci_ids": [
{
"vendor": "8086",
"device": "1889"
}
]
}
Get only the required kernel modules for a given driver:
.. code-block:: console
$ dpdk-pmdinfo.py /usr/bin/dpdk-testpmd | \
jq '.[] | select(.name == "net_cn10k").kmod'
"vfio-pci"
Get only the required kernel modules for a given device:
.. code-block:: console
$ dpdk-pmdinfo.py /usr/bin/dpdk-testpmd | \
jq '.[] | select(.pci_ids[]? | .vendor == "15b3" and .device == "1013").kmod'
"* ib_uverbs & mlx5_core & mlx5_ib"
|
