Adding upstream version 18.2.2.upstream/18.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 118 insertions, 0 deletions

diff --git a/src/spdk/dpdk/doc/guides/eventdevs/dpaa2.rst b/src/spdk/dpdk/doc/guides/eventdevs/dpaa2.rst
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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.