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.. SPDX-License-Identifier: BSD-3-Clause
Copyright 2017 NXP
NXP DPAA2 Eventdev Driver
=========================
The dpaa2 eventdev is an implementation of the eventdev API, that provides a
wide range of the eventdev features. The eventdev relies on a dpaa2 hw to
perform event scheduling.
More information can be found at `NXP Official Website
<http://www.nxp.com/products/microcontrollers-and-processors/arm-processors/qoriq-arm-processors:QORIQ-ARM>`_.
Features
--------
The DPAA2 EVENTDEV implements many features in the eventdev API;
- Hardware based event scheduler
- 8 event ports
- 8 event queues
- Parallel flows
- Atomic flows
Supported DPAA2 SoCs
--------------------
- LX2160A
- LS2084A/LS2044A
- LS2088A/LS2048A
- LS1088A/LS1048A
Prerequisites
-------------
See :doc:`../platform/dpaa2` for setup information
Currently supported by DPDK:
- NXP SDK **19.09+**.
- MC Firmware version **10.18.0** and higher.
- Supported architectures: **arm64 LE**.
- Follow the DPDK :ref:`Getting Started Guide for Linux <linux_gsg>` to setup the basic DPDK environment.
.. note::
Some part of fslmc bus code (mc flib - object library) routines are
dual licensed (BSD & GPLv2).
Pre-Installation Configuration
------------------------------
Config File Options
~~~~~~~~~~~~~~~~~~~
The following options can be modified in the ``config`` file.
Please note that enabling debugging options may affect system performance.
- ``CONFIG_RTE_LIBRTE_PMD_DPAA2_EVENTDEV`` (default ``y``)
Toggle compilation of the ``lrte_pmd_dpaa2_event`` driver.
Driver Compilation
~~~~~~~~~~~~~~~~~~
To compile the DPAA2 EVENTDEV PMD for Linux arm64 gcc target, run the
following ``make`` command:
.. code-block:: console
cd <DPDK-source-directory>
make config T=arm64-dpaa-linux-gcc install
Initialization
--------------
The dpaa2 eventdev is exposed as a vdev device which consists of a set of dpcon
devices and dpci devices. On EAL initialization, dpcon and dpci devices will be
probed and then vdev device can be created from the application code by
* Invoking ``rte_vdev_init("event_dpaa2")`` from the application
* Using ``--vdev="event_dpaa2"`` in the EAL options, which will call
rte_vdev_init() internally
Example:
.. code-block:: console
./your_eventdev_application --vdev="event_dpaa2"
Enabling logs
-------------
For enabling logs, use the following EAL parameter:
.. code-block:: console
./your_eventdev_application <EAL args> --log-level=pmd.event.dpaa2,<level>
Using ``eventdev.dpaa2`` as log matching criteria, all Event PMD logs can be
enabled which are lower than logging ``level``.
Limitations
-----------
Platform Requirement
~~~~~~~~~~~~~~~~~~~~
DPAA2 drivers for DPDK can only work on NXP SoCs as listed in the
``Supported DPAA2 SoCs``.
Port-core binding
~~~~~~~~~~~~~~~~~
DPAA2 EVENTDEV can support only one eventport per core.
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