* All sub-repositories are merged into main repository for ``-rc1`` and ``-rc2`` versions of the release.
* After the ``-rc2`` release all patches should target the main repository.
-The mailing list for DPDK development is `dev@dpdk.org <http://mails.dpdk.org/archives/dev/>`_.
-Contributors will need to `register for the mailing list <http://mails.dpdk.org/listinfo/dev>`_ in order to submit patches.
-It is also worth registering for the DPDK `Patchwork <http://patches.dpdk.org/project/dpdk/list/>`_
+The mailing list for DPDK development is `dev@dpdk.org <https://mails.dpdk.org/archives/dev/>`_.
+Contributors will need to `register for the mailing list <https://mails.dpdk.org/listinfo/dev>`_ in order to submit patches.
+It is also worth registering for the DPDK `Patchwork <https://patches.dpdk.org/project/dpdk/list/>`_
-If you are using the GitHub service, you can link your repository to
-the ``travis-ci.org`` build service. When you push patches to your GitHub
-repository, the travis service will automatically build your changes.
+If you are using the GitHub service, pushing to a branch will trigger GitHub
+Actions to automatically build your changes and run unit tests and ABI checks.
+
+Additionally, a Travis configuration is available in DPDK but Travis free usage
+is limited to a few builds.
+You can link your repository to the ``travis-ci.com`` build service.
The development process requires some familiarity with the ``git`` version control system.
Refer to the `Pro Git Book <http://www.git-scm.com/book/>`_ for further information.
The maintainer should be confirmed by an ``ack`` from an existing tree maintainer.
Disagreements on trees or maintainers can be brought to the Technical Board.
-The backup maintainer for the master tree should be selected from the existing sub-tree maintainers from the project.
+The backup maintainer for the main tree should be selected
+from the existing sub-tree maintainers of the project.
The backup maintainer for a sub-tree should be selected from among the component maintainers within that sub-tree.
main repository::
git clone git://dpdk.org/dpdk
- git clone http://dpdk.org/git/dpdk
+ git clone https://dpdk.org/git/dpdk
-sub-repositories (`list <http://git.dpdk.org/next>`_)::
+sub-repositories (`list <https://git.dpdk.org/next>`_)::
git clone git://dpdk.org/next/dpdk-next-*
- git clone http://dpdk.org/git/next/dpdk-next-*
+ git clone https://dpdk.org/git/next/dpdk-next-*
Make your Changes
-----------------
applied without dependencies as a backport.
It is better to keep the related documentation changes in the same patch
-file as the code, rather than one big documentation patch at then end of a
+file as the code, rather than one big documentation patch at the end of a
patchset. This makes it easier for future maintenance and development of the
code.
Patch for Stable Releases
~~~~~~~~~~~~~~~~~~~~~~~~~
-All fix patches to the master branch that are candidates for backporting
-should also be CCed to the `stable@dpdk.org <http://mails.dpdk.org/listinfo/stable>`_
+All fix patches to the main branch that are candidates for backporting
+should also be CCed to the `stable@dpdk.org <https://mails.dpdk.org/listinfo/stable>`_
mailing list.
In the commit message body the Cc: stable@dpdk.org should be inserted as follows::
For further information on stable contribution you can go to
:doc:`Stable Contribution Guide <stable>`.
+Patch Dependencies
+~~~~~~~~~~~~~~~~~~
+
+Sometimes a patch or patchset can depend on another one.
+To help the maintainers and automation tasks, please document this dependency in commit log or cover letter
+with the following syntax:
+
+``Depends-on: series-NNNNN ("Title of the series")`` or ``Depends-on: patch-NNNNN ("Title of the patch")``
+
+Where ``NNNNN`` is patchwork ID for patch or series::
+
+ doc: fix some parameter description
+
+ Update the docs, fixing description of some parameter.
+
+ Signed-off-by: Alex Smith <alex.smith@example.com>
+ ---
+ Depends-on: series-10000 ("Title of the series")
Creating Patches
----------------
The path to the original Linux script must be set in the environment variable ``DPDK_CHECKPATCH_PATH``.
-Spell checking of commonly misspelled words
-can be enabled by downloading the codespell dictionary::
+Spell checking of commonly misspelled words is enabled
+by default if installed in ``/usr/share/codespell/dictionary.txt``.
+A different dictionary path can be specified
+in the environment variable ``DPDK_CHECKPATCH_CODESPELL``.
- https://raw.githubusercontent.com/codespell-project/codespell/master/codespell_lib/data/dictionary.txt
+There is a DPDK script to build an adjusted dictionary
+from the multiple codespell dictionaries::
-The path to the downloaded ``dictionary.txt`` must be set
-in the environment variable ``DPDK_CHECKPATCH_CODESPELL``.
+ git clone https://github.com/codespell-project/codespell.git
+ devtools/build-dict.sh codespell/ > codespell-dpdk.txt
Environment variables required by the development tools,
are loaded from the following files, in order of preference::
The script usage is::
- checkpatches.sh [-h] [-q] [-v] [patch1 [patch2] ...]]"
-
-Where:
-
-* ``-h``: help, usage.
-* ``-q``: quiet. Don't output anything for files without issues.
-* ``-v``: verbose.
-* ``patchX``: path to one or more patches.
+ checkpatches.sh [-h] [-q] [-v] [-nX|-r range|patch1 [patch2] ...]
Then the git logs should be checked using the ``check-git-log.sh`` script.
The script usage is::
- check-git-log.sh [range]
-
-Where the range is a ``git log`` option.
+ check-git-log.sh [-h] [-nX|-r range]
+For both of the above scripts, the -n option is used to specify a number of commits from HEAD,
+and the -r option allows the user specify a ``git log`` range.
.. _contrib_check_compilation:
Checking Compilation
--------------------
-Makefile System
-~~~~~~~~~~~~~~~
-
-Compilation of patches and changes should be tested using the ``test-build.sh`` script in the ``devtools``
-directory of the DPDK repo::
-
- devtools/test-build.sh x86_64-native-linux-gcc+next+shared
-
-The script usage is::
-
- test-build.sh [-h] [-jX] [-s] [config1 [config2] ...]]
-
-Where:
-
-* ``-h``: help, usage.
-* ``-jX``: use X parallel jobs in "make".
-* ``-s``: short test with only first config and without examples/doc.
-* ``config``: default config name plus config switches delimited with a ``+`` sign.
-
-Examples of configs are::
-
- x86_64-native-linux-gcc
- x86_64-native-linux-gcc+next+shared
- x86_64-native-linux-clang+shared
-
-The builds can be modified via the following environmental variables:
-
-* ``DPDK_BUILD_TEST_CONFIGS`` (target1+option1+option2 target2)
-* ``DPDK_BUILD_TEST_DIR``
-* ``DPDK_DEP_CFLAGS``
-* ``DPDK_DEP_LDFLAGS``
-* ``DPDK_DEP_PCAP`` (y/[n])
-* ``DPDK_NOTIFY`` (notify-send)
-
-These can be set from the command line or in the config files shown above in the :ref:`contrib_checkpatch`.
-
-The recommended configurations and options to test compilation prior to submitting patches are::
-
- x86_64-native-linux-gcc+shared+next
- x86_64-native-linux-clang+shared
- i686-native-linux-gcc
-
- export DPDK_DEP_ZLIB=y
- export DPDK_DEP_PCAP=y
- export DPDK_DEP_SSL=y
-
-Meson System
-~~~~~~~~~~~~
-
Compilation of patches is to be tested with ``devtools/test-meson-builds.sh`` script.
The script internally checks for dependencies, then builds for several
By default, ABI compatibility checks are disabled.
To enable them, a reference version must be selected via the environment
-variable ``DPDK_ABI_REF_VERSION``.
+variable ``DPDK_ABI_REF_VERSION``. Contributors should ordinarily reference the
+git tag of the most recent release of DPDK in ``DPDK_ABI_REF_VERSION``.
-The ``devtools/test-build.sh`` and ``devtools/test-meson-builds.sh`` scripts
-then build this reference version in a temporary directory and store the
-results in a subfolder of the current working directory.
+The ``devtools/test-meson-builds.sh`` script then build this reference version
+in a temporary directory and store the results in a subfolder of the current
+working directory.
The environment variable ``DPDK_ABI_REF_DIR`` can be set so that the results go
to a different location.
+Sample::
+
+ DPDK_ABI_REF_VERSION=v19.11 DPDK_ABI_REF_DIR=/tmp ./devtools/test-meson-builds.sh
+
Sending Patches
---------------
git send-email --to dev@dpdk.org --in-reply-to <1234-foo@bar.com> 000*.patch
The Message ID can be found in the raw text of emails or at the top of each Patchwork patch,
-`for example <http://patches.dpdk.org/patch/7646/>`_.
+`for example <https://patches.dpdk.org/patch/7646/>`_.
Shallow threading (``--thread --no-chain-reply-to``) is preferred for a patch series.
Once submitted your patches will appear on the mailing list and in Patchwork.