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Subject: [dpdk-dev] [PATCH v2 8/9] doc: add DPAA2 CMDIF rawdev guide
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Signed-off-by: Nipun Gupta <nipun.gupta@nxp.com>
---
MAINTAINERS | 1 +
doc/guides/rawdevs/dpaa2_cmdif.rst | 132 +++++++++++++++++++++++++++++++++++++
2 files changed, 133 insertions(+)
create mode 100644 doc/guides/rawdevs/dpaa2_cmdif.rst
diff --git a/MAINTAINERS b/MAINTAINERS
index e97da7f..9ef5902 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -732,6 +732,7 @@ Rawdev Drivers
DPAA2 CMDIF
M: Nipun Gupta <nipun.gupta@nxp.com>
F: drivers/raw/dpaa2_cmdif/
+F: doc/guides/rawdevs/dpaa2_cmdif.rst
Eventdev Drivers
diff --git a/doc/guides/rawdevs/dpaa2_cmdif.rst b/doc/guides/rawdevs/dpaa2_cmdif.rst
new file mode 100644
index 0000000..b0aec2a
--- /dev/null
+++ b/doc/guides/rawdevs/dpaa2_cmdif.rst
@@ -0,0 +1,132 @@
+.. SPDX-License-Identifier: BSD-3-Clause
+ Copyright 2018 NXP
+
+NXP DPAA2 CMDIF Driver
+======================
+
+The DPAA2 CMDIF is an implementation of the rawdev API, that provides
+communication between the GPP and AIOP (Firmware). This is achieved
+via using the DPCI devices exposed by MC for GPP <--> AIOP interaction.
+
+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 CMDIF implements following features in the rawdev API;
+
+- Getting the object ID of the device (DPCI) using attributes
+- I/O to and from the AIOP device using DPCI
+
+Supported DPAA2 SoCs
+--------------------
+
+- LS2084A/LS2044A
+- LS2088A/LS2048A
+- LS1088A/LS1048A
+
+Prerequisites
+-------------
+
+There are three main pre-requisities for executing DPAA2 CMDIF on a DPAA2
+compatible board:
+
+1. **ARM 64 Tool Chain**
+
+ For example, the `*aarch64* Linaro Toolchain <https://releases.linaro.org/components/toolchain/binaries/6.3-2017.02/aarch64-linux-gnu>`_.
+
+2. **Linux Kernel**
+
+ It can be obtained from `NXP's Github hosting <https://github.com/qoriq-open-source/linux>`_.
+
+3. **Rootfile system**
+
+ Any *aarch64* supporting filesystem can be used. For example,
+ Ubuntu 15.10 (Wily) or 16.04 LTS (Xenial) userland which can be obtained
+ from `here <http://cdimage.ubuntu.com/ubuntu-base/releases/16.04/release/ubuntu-base-16.04.1-base-arm64.tar.gz>`_.
+
+As an alternative method, DPAA2 CMDIF can also be executed using images provided
+as part of SDK from NXP. The SDK includes all the above prerequisites necessary
+to bring up a DPAA2 board.
+
+The following dependencies are not part of DPDK and must be installed
+separately:
+
+- **NXP Linux SDK**
+
+ NXP Linux software development kit (SDK) includes support for family
+ of QorIQ® ARM-Architecture-based system on chip (SoC) processors
+ and corresponding boards.
+
+ It includes the Linux board support packages (BSPs) for NXP SoCs,
+ a fully operational tool chain, kernel and board specific modules.
+
+ SDK and related information can be obtained from: `NXP QorIQ SDK <http://www.nxp.com/products/software-and-tools/run-time-software/linux-sdk/linux-sdk-for-qoriq-processors:SDKLINUX>`_.
+
+- **DPDK Extra Scripts**
+
+ DPAA2 based resources can be configured easily with the help of ready scripts
+ as provided in the DPDK Extra repository.
+
+ `DPDK Extras Scripts <https://github.com/qoriq-open-source/dpdk-extras>`_.
+
+Currently supported by DPDK:
+
+- NXP SDK **2.0+**.
+- MC Firmware version **10.0.0** 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.
+
+- ``CONFIG_RTE_LIBRTE_PMD_DPAA2_CMDIF`` (default ``y``)
+
+ Toggle compilation of the ``lrte_pmd_dpaa2_cmdif`` driver.
+
+Driver Compilation
+~~~~~~~~~~~~~~~~~~
+
+To compile the DPAA2 CMDIF PMD for Linux arm64 gcc target, run the
+following ``make`` command:
+
+.. code-block:: console
+
+ cd <DPDK-source-directory>
+ make config T=arm64-dpaa2-linuxapp-gcc install
+
+Initialization
+--------------
+
+The DPAA2 CMDIF is exposed as a vdev device which consists of dpci devices.
+On EAL initialization, dpci devices will be probed and then vdev device
+can be created from the application code by
+
+* Invoking ``rte_vdev_init("dpaa2_dpci")`` from the application
+
+* Using ``--vdev="dpaa2_dpci"`` in the EAL options, which will call
+ rte_vdev_init() internally
+
+Example:
+
+.. code-block:: console
+
+ ./your_cmdif_application --vdev="dpaa2_dpci"
+
+Platform Requirement
+~~~~~~~~~~~~~~~~~~~~
+
+DPAA2 drivers for DPDK can only work on NXP SoCs as listed in the
+``Supported DPAA2 SoCs``.
--
1.9.1