29c875cc11
The prerequisite info is already present in the platform guide. No need to repeat it in individual dev guides. Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
90 lines
2.1 KiB
ReStructuredText
90 lines
2.1 KiB
ReStructuredText
.. SPDX-License-Identifier: BSD-3-Clause
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Copyright 2017 NXP
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NXP DPAA2 Eventdev Driver
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=========================
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The dpaa2 eventdev is an implementation of the eventdev API, that provides a
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wide range of the eventdev features. The eventdev relies on a dpaa2 hw to
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perform event scheduling.
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More information can be found at `NXP Official Website
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<http://www.nxp.com/products/microcontrollers-and-processors/arm-processors/qoriq-arm-processors:QORIQ-ARM>`_.
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Features
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--------
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The DPAA2 EVENTDEV implements many features in the eventdev API;
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- Hardware based event scheduler
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- 8 event ports
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- 8 event queues
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- Parallel flows
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- Atomic flows
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Supported DPAA2 SoCs
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--------------------
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- LX2160A
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- LS2084A/LS2044A
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- LS2088A/LS2048A
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- LS1088A/LS1048A
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Prerequisites
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-------------
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See :doc:`../platform/dpaa2` for setup information
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- Follow the DPDK :ref:`Getting Started Guide for Linux <linux_gsg>` to setup the basic DPDK environment.
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.. note::
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Some part of fslmc bus code (mc flib - object library) routines are
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dual licensed (BSD & GPLv2).
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Initialization
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--------------
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The dpaa2 eventdev is exposed as a vdev device which consists of a set of dpcon
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devices and dpci devices. On EAL initialization, dpcon and dpci devices will be
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probed and then vdev device can be created from the application code by
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* Invoking ``rte_vdev_init("event_dpaa2")`` from the application
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* Using ``--vdev="event_dpaa2"`` in the EAL options, which will call
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rte_vdev_init() internally
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Example:
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.. code-block:: console
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./your_eventdev_application --vdev="event_dpaa2"
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Enabling logs
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-------------
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For enabling logs, use the following EAL parameter:
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.. code-block:: console
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./your_eventdev_application <EAL args> --log-level=pmd.event.dpaa2,<level>
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Using ``eventdev.dpaa2`` as log matching criteria, all Event PMD logs can be
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enabled which are lower than logging ``level``.
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Limitations
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-----------
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Platform Requirement
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~~~~~~~~~~~~~~~~~~~~
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DPAA2 drivers for DPDK can only work on NXP SoCs as listed in the
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``Supported DPAA2 SoCs``.
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Port-core binding
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~~~~~~~~~~~~~~~~~
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DPAA2 EVENTDEV can support only one eventport per core.
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