5630257fcc
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com> Acked-by: Bruce Richardson <bruce.richardson@intel.com>
119 lines
4.3 KiB
ReStructuredText
119 lines
4.3 KiB
ReStructuredText
.. SPDX-License-Identifier: BSD-3-Clause
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Copyright(c) 2010-2015 Intel Corporation.
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.. _linux_gsg_compiling_dpdk:
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Compiling the DPDK Target from Source
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=====================================
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.. note::
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Parts of this process can also be done using the setup script described in
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the :ref:`linux_setup_script` section of this document.
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Install the DPDK and Browse Sources
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-----------------------------------
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First, uncompress the archive and move to the uncompressed DPDK source directory:
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.. code-block:: console
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tar xJf dpdk-<version>.tar.xz
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cd dpdk-<version>
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The DPDK is composed of several directories:
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* lib: Source code of DPDK libraries
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* drivers: Source code of DPDK poll-mode drivers
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* app: Source code of DPDK applications (automatic tests)
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* examples: Source code of DPDK application examples
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* config, buildtools, mk: Framework-related makefiles, scripts and configuration
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Installation of DPDK Target Environments
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----------------------------------------
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The format of a DPDK target is::
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ARCH-MACHINE-EXECENV-TOOLCHAIN
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where:
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* ``ARCH`` can be: ``i686``, ``x86_64``, ``ppc_64``, ``arm64``
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* ``MACHINE`` can be: ``native``, ``power8``, ``armv8a``
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* ``EXECENV`` can be: ``linuxapp``, ``bsdapp``
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* ``TOOLCHAIN`` can be: ``gcc``, ``icc``
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The targets to be installed depend on the 32-bit and/or 64-bit packages and compilers installed on the host.
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Available targets can be found in the DPDK/config directory.
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The defconfig\_ prefix should not be used.
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.. note::
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Configuration files are provided with the ``RTE_MACHINE`` optimization level set.
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Within the configuration files, the ``RTE_MACHINE`` configuration value is set to native,
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which means that the compiled software is tuned for the platform on which it is built.
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For more information on this setting, and its possible values, see the *DPDK Programmers Guide*.
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When using the Intel® C++ Compiler (icc), one of the following commands should be invoked for 64-bit or 32-bit use respectively.
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Notice that the shell scripts update the ``$PATH`` variable and therefore should not be performed in the same session.
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Also, verify the compiler's installation directory since the path may be different:
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.. code-block:: console
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source /opt/intel/bin/iccvars.sh intel64
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source /opt/intel/bin/iccvars.sh ia32
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To install and make targets, use the ``make install T=<target>`` command in the top-level DPDK directory.
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For example, to compile a 64-bit target using icc, run:
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.. code-block:: console
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make install T=x86_64-native-linuxapp-icc
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To compile a 32-bit build using gcc, the make command should be:
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.. code-block:: console
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make install T=i686-native-linuxapp-gcc
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To prepare a target without building it, for example, if the configuration changes need to be made before compilation,
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use the ``make config T=<target>`` command:
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.. code-block:: console
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make config T=x86_64-native-linuxapp-gcc
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.. warning::
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Any kernel modules to be used, e.g. ``igb_uio``, ``kni``, must be compiled with the
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same kernel as the one running on the target.
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If the DPDK is not being built on the target machine,
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the ``RTE_KERNELDIR`` environment variable should be used to point the compilation at a copy of the kernel version to be used on the target machine.
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Once the target environment is created, the user may move to the target environment directory and continue to make code changes and re-compile.
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The user may also make modifications to the compile-time DPDK configuration by editing the .config file in the build directory.
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(This is a build-local copy of the defconfig file from the top- level config directory).
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.. code-block:: console
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cd x86_64-native-linuxapp-gcc
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vi .config
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make
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In addition, the make clean command can be used to remove any existing compiled files for a subsequent full, clean rebuild of the code.
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Browsing the Installed DPDK Environment Target
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----------------------------------------------
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Once a target is created it contains all libraries, including poll-mode drivers, and header files for the DPDK environment that are required to build customer applications.
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In addition, the test and testpmd applications are built under the build/app directory, which may be used for testing.
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A kmod directory is also present that contains kernel modules which may be loaded if needed.
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