9db3f52126
Convert the NIC feature table in the overview doc into a set of ini
files and add functions into the Sphinx conf.py file to auto-generate
them back into an RST table.
The reason for doing this is to make it easier for PMD maintainers to
update the feature matrix that makes up the table and to avoid
frequent and hard to resolve conflicts in doc/guides/nics/overview.rst.
A NIC/PMD feature matrix is now an ini file like the following:
$ head doc/guides/nics/nic_features/i40e.ini
;
; Features of the i40e network driver.
;
[Features]
Link status = Y
Link status event = Y
Rx interrupt = Y
Queue start/stop = Y
...
The output RST table matches the existing table with the column
headers sorted.
Signed-off-by: John McNamara <john.mcnamara@intel.com>
Tested-by: Ferruh Yigit <ferruh.yigit@intel.com>
312 lines
11 KiB
Python
312 lines
11 KiB
Python
# BSD LICENSE
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# Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in
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# the documentation and/or other materials provided with the
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# distribution.
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# * Neither the name of Intel Corporation nor the names of its
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# contributors may be used to endorse or promote products derived
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# from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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from __future__ import print_function
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import subprocess
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from docutils import nodes
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from distutils.version import LooseVersion
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from sphinx import __version__ as sphinx_version
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from sphinx.highlighting import PygmentsBridge
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from pygments.formatters.latex import LatexFormatter
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from os import listdir
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from os.path import basename
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from os.path import dirname
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from os.path import join as path_join
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try:
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# Python 2.
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import ConfigParser as configparser
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except:
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# Python 3.
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import configparser
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project = 'Data Plane Development Kit'
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if LooseVersion(sphinx_version) >= LooseVersion('1.3.1'):
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html_theme = "sphinx_rtd_theme"
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html_logo = '../logo/DPDK_logo_vertical_rev_small.png'
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latex_logo = '../logo/DPDK_logo_horizontal_tag.png'
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html_add_permalinks = ""
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html_show_copyright = False
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highlight_language = 'none'
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version = subprocess.check_output(['make', '-sRrC', '../../', 'showversion']).decode('utf-8').rstrip()
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release = version
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master_doc = 'index'
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# Figures, tables and code-blocks automatically numbered if they have caption
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numfig = True
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latex_documents = [
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('index',
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'doc.tex',
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'',
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'',
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'manual')
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]
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# Latex directives to be included directly in the latex/pdf docs.
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latex_preamble = r"""
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\usepackage[utf8]{inputenc}
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\usepackage[T1]{fontenc}
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\usepackage{helvet}
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\renewcommand{\familydefault}{\sfdefault}
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\RecustomVerbatimEnvironment{Verbatim}{Verbatim}{xleftmargin=5mm}
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"""
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# Configuration for the latex/pdf docs.
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latex_elements = {
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'papersize': 'a4paper',
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'pointsize': '11pt',
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# remove blank pages
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'classoptions': ',openany,oneside',
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'babel': '\\usepackage[english]{babel}',
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# customize Latex formatting
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'preamble': latex_preamble
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}
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# Override the default Latex formatter in order to modify the
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# code/verbatim blocks.
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class CustomLatexFormatter(LatexFormatter):
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def __init__(self, **options):
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super(CustomLatexFormatter, self).__init__(**options)
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# Use the second smallest font size for code/verbatim blocks.
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self.verboptions = r'formatcom=\footnotesize'
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# Replace the default latex formatter.
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PygmentsBridge.latex_formatter = CustomLatexFormatter
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######## :numref: fallback ########
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# The following hook functions add some simple handling for the :numref:
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# directive for Sphinx versions prior to 1.3.1. The functions replace the
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# :numref: reference with a link to the target (for all Sphinx doc types).
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# It doesn't try to label figures/tables.
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def numref_role(reftype, rawtext, text, lineno, inliner):
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"""
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Add a Sphinx role to handle numref references. Note, we can't convert
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the link here because the doctree isn't build and the target information
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isn't available.
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"""
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# Add an identifier to distinguish numref from other references.
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newnode = nodes.reference('',
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'',
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refuri='_local_numref_#%s' % text,
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internal=True)
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return [newnode], []
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def process_numref(app, doctree, from_docname):
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"""
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Process the numref nodes once the doctree has been built and prior to
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writing the files. The processing involves replacing the numref with a
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link plus text to indicate if it is a Figure or Table link.
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"""
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# Iterate over the reference nodes in the doctree.
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for node in doctree.traverse(nodes.reference):
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target = node.get('refuri', '')
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# Look for numref nodes.
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if target.startswith('_local_numref_#'):
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target = target.replace('_local_numref_#', '')
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# Get the target label and link information from the Sphinx env.
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data = app.builder.env.domains['std'].data
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docname, label, _ = data['labels'].get(target, ('', '', ''))
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relative_url = app.builder.get_relative_uri(from_docname, docname)
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# Add a text label to the link.
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if target.startswith('figure'):
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caption = 'Figure'
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elif target.startswith('table'):
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caption = 'Table'
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else:
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caption = 'Link'
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# New reference node with the updated link information.
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newnode = nodes.reference('',
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caption,
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refuri='%s#%s' % (relative_url, label),
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internal=True)
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node.replace_self(newnode)
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def generate_nic_overview_table(output_filename):
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"""
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Function to generate the NIC Overview Table from the ini files that define
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the features for each NIC.
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The default features for the table and their order is defined by the
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'default.ini' file.
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"""
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# Default worning string.
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warning = 'Warning generate_nic_overview_table()'
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# Get the default features and order from the 'default.ini' file.
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ini_path = path_join(dirname(output_filename), 'features')
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config = configparser.ConfigParser()
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config.optionxform = str
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config.read(path_join(ini_path, 'default.ini'))
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default_section = 'Features'
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default_features = config.items(default_section)
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# Create a dict of the valid features to validate the other ini files.
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valid_features = {}
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max_feature_length = 0
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for feature in default_features:
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key = feature[0]
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valid_features[key] = ' '
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max_feature_length = max(max_feature_length, len(key))
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# Get a list of NIC ini files, excluding 'default.ini'.
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ini_files = [basename(file) for file in listdir(ini_path)
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if file.endswith('.ini') and file != 'default.ini']
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ini_files.sort()
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# Build up a list of the table header names from the ini filenames.
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header_names = []
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for ini_filename in ini_files:
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name = ini_filename[:-4]
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name = name.replace('_vf', 'vf')
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# Pad the table header names to match the existing format.
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if '_vec' in name:
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pmd, vec = name.split('_')
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name = '{0:{fill}{align}7}vec'.format(pmd, fill='.', align='<')
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else:
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name = '{0:{fill}{align}10}'.format(name, fill=' ', align='<')
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header_names.append(name)
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# Create a dict of the defined features for each NIC from the ini files.
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ini_data = {}
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for ini_filename in ini_files:
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config = configparser.ConfigParser()
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config.optionxform = str
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config.read(path_join(ini_path, ini_filename))
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# Initialize the dict with the default.ini value.
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ini_data[ini_filename] = valid_features.copy()
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# Check for a valid ini section.
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if not config.has_section(default_section):
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print("{}: File '{}' has no [{}] secton".format(warning,
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ini_filename,
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default_section))
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continue
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# Check for valid features names.
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for name, value in config.items(default_section):
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if name not in valid_features:
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print("{}: Unknown feature '{}' in '{}'".format(warning,
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name,
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ini_filename))
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continue
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if value is not '':
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# Get the first letter only.
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ini_data[ini_filename][name] = value[0]
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# Print out the RST NIC Overview table from the ini file data.
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outfile = open(output_filename, 'w')
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num_cols = len(header_names)
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print('.. table:: Features availability in networking drivers\n',
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file=outfile)
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print_table_header(outfile, num_cols, header_names)
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print_table_body(outfile, num_cols, ini_files, ini_data, default_features)
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def print_table_header(outfile, num_cols, header_names):
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""" Print the RST table header. The header names are vertical. """
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print_table_divider(outfile, num_cols)
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line = ''
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for name in header_names:
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line += ' ' + name[0]
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print_table_row(outfile, 'Feature', line)
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for i in range(1, 10):
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line = ''
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for name in header_names:
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line += ' ' + name[i]
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print_table_row(outfile, '', line)
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print_table_divider(outfile, num_cols)
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def print_table_body(outfile, num_cols, ini_files, ini_data, default_features):
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""" Print out the body of the table. Each row is a NIC feature. """
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for feature, _ in default_features:
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line = ''
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for ini_filename in ini_files:
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line += ' ' + ini_data[ini_filename][feature]
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print_table_row(outfile, feature, line)
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print_table_divider(outfile, num_cols)
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def print_table_row(outfile, feature, line):
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""" Print a single row of the table with fixed formatting. """
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line = line.rstrip()
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print(' {:<20}{}'.format(feature, line), file=outfile)
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def print_table_divider(outfile, num_cols):
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""" Print the table divider line. """
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line = ' '
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column_dividers = ['='] * num_cols
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line += ' '.join(column_dividers)
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feature = '=' * 20
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print_table_row(outfile, feature, line)
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def setup(app):
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generate_nic_overview_table('doc/guides/nics/overview_table.txt')
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if LooseVersion(sphinx_version) < LooseVersion('1.3.1'):
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print('Upgrade sphinx to version >= 1.3.1 for '
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'improved Figure/Table number handling.')
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# Add a role to handle :numref: references.
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app.add_role('numref', numref_role)
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# Process the numref references once the doctree has been created.
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app.connect('doctree-resolved', process_numref)
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