ceph/src/seastar/dpdk/doc/guides/conf.py

   1 #   BSD LICENSE
   2 #   Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
   3 #   All rights reserved.
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  17 #   from this software without specific prior written permission.
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  30
  31 from __future__ import print_function
  32 import subprocess
  33 from docutils import nodes
  34 from distutils.version import LooseVersion
  35 from sphinx import __version__ as sphinx_version
  36 from sphinx.highlighting import PygmentsBridge
  37 from pygments.formatters.latex import LatexFormatter
  38 from os import listdir
  39 from os.path import basename
  40 from os.path import dirname
  41 from os.path import join as path_join
  42
  43 try:
  44     # Python 2.
  45     import ConfigParser as configparser
  46 except:
  47     # Python 3.
  48     import configparser
  49
  50
  51 project = 'Data Plane Development Kit'
  52
  53 if LooseVersion(sphinx_version) >= LooseVersion('1.3.1'):
  54     html_theme = "sphinx_rtd_theme"
  55 html_logo = '../logo/DPDK_logo_vertical_rev_small.png'
  56 latex_logo = '../logo/DPDK_logo_horizontal_tag.png'
  57 html_add_permalinks = ""
  58 html_show_copyright = False
  59 highlight_language = 'none'
  60
  61 version = subprocess.check_output(['make', '-sRrC', '../../', 'showversion'])
  62 version = version.decode('utf-8').rstrip()
  63 release = version
  64
  65 master_doc = 'index'
  66
  67 # Maximum feature description string length
  68 feature_str_len = 25
  69
  70 # Figures, tables and code-blocks automatically numbered if they have caption
  71 numfig = True
  72
  73 latex_documents = [
  74     ('index',
  75      'doc.tex',
  76      '',
  77      '',
  78      'manual')
  79 ]
  80
  81 # Latex directives to be included directly in the latex/pdf docs.
  82 custom_latex_preamble = r"""
  83 \usepackage[utf8]{inputenc}
  84 \usepackage[T1]{fontenc}
  85 \usepackage{helvet}
  86 \renewcommand{\familydefault}{\sfdefault}
  87 \RecustomVerbatimEnvironment{Verbatim}{Verbatim}{xleftmargin=5mm}
  88 """
  89
  90 # Configuration for the latex/pdf docs.
  91 latex_elements = {
  92     'papersize': 'a4paper',
  93     'pointsize': '11pt',
  94     # remove blank pages
  95     'classoptions': ',openany,oneside',
  96     'babel': '\\usepackage[english]{babel}',
  97     # customize Latex formatting
  98     'preamble': custom_latex_preamble
  99 }
 100
 101
 102 # Override the default Latex formatter in order to modify the
 103 # code/verbatim blocks.
 104 class CustomLatexFormatter(LatexFormatter):
 105     def __init__(self, **options):
 106         super(CustomLatexFormatter, self).__init__(**options)
 107         # Use the second smallest font size for code/verbatim blocks.
 108         self.verboptions = r'formatcom=\footnotesize'
 109
 110 # Replace the default latex formatter.
 111 PygmentsBridge.latex_formatter = CustomLatexFormatter
 112
 113 # Configuration for man pages
 114 man_pages = [("testpmd_app_ug/run_app", "testpmd",
 115               "tests for dpdk pmds", "", 1),
 116              ("tools/pdump", "dpdk-pdump",
 117               "enable packet capture on dpdk ports", "", 1),
 118              ("tools/proc_info", "dpdk-procinfo",
 119               "access dpdk port stats and memory info", "", 1),
 120              ("tools/pmdinfo", "dpdk-pmdinfo",
 121               "dump a PMDs hardware support info", "", 1),
 122              ("tools/devbind", "dpdk-devbind",
 123               "check device status and bind/unbind them from drivers", "", 8)]
 124
 125
 126 # ####### :numref: fallback ########
 127 # The following hook functions add some simple handling for the :numref:
 128 # directive for Sphinx versions prior to 1.3.1. The functions replace the
 129 # :numref: reference with a link to the target (for all Sphinx doc types).
 130 # It doesn't try to label figures/tables.
 131 def numref_role(reftype, rawtext, text, lineno, inliner):
 132     """
 133     Add a Sphinx role to handle numref references. Note, we can't convert
 134     the link here because the doctree isn't build and the target information
 135     isn't available.
 136     """
 137     # Add an identifier to distinguish numref from other references.
 138     newnode = nodes.reference('',
 139                               '',
 140                               refuri='_local_numref_#%s' % text,
 141                               internal=True)
 142     return [newnode], []
 143
 144
 145 def process_numref(app, doctree, from_docname):
 146     """
 147     Process the numref nodes once the doctree has been built and prior to
 148     writing the files. The processing involves replacing the numref with a
 149     link plus text to indicate if it is a Figure or Table link.
 150     """
 151
 152     # Iterate over the reference nodes in the doctree.
 153     for node in doctree.traverse(nodes.reference):
 154         target = node.get('refuri', '')
 155
 156         # Look for numref nodes.
 157         if target.startswith('_local_numref_#'):
 158             target = target.replace('_local_numref_#', '')
 159
 160             # Get the target label and link information from the Sphinx env.
 161             data = app.builder.env.domains['std'].data
 162             docname, label, _ = data['labels'].get(target, ('', '', ''))
 163             relative_url = app.builder.get_relative_uri(from_docname, docname)
 164
 165             # Add a text label to the link.
 166             if target.startswith('figure'):
 167                 caption = 'Figure'
 168             elif target.startswith('table'):
 169                 caption = 'Table'
 170             else:
 171                 caption = 'Link'
 172
 173             # New reference node with the updated link information.
 174             newnode = nodes.reference('',
 175                                       caption,
 176                                       refuri='%s#%s' % (relative_url, label),
 177                                       internal=True)
 178             node.replace_self(newnode)
 179
 180
 181 def generate_overview_table(output_filename, table_id, section, table_name, title):
 182     """
 183     Function to generate the Overview Table from the ini files that define
 184     the features for each driver.
 185
 186     The default features for the table and their order is defined by the
 187     'default.ini' file.
 188
 189     """
 190     # Default warning string.
 191     warning = 'Warning generate_overview_table()'
 192
 193     # Get the default features and order from the 'default.ini' file.
 194     ini_path = path_join(dirname(output_filename), 'features')
 195     config = configparser.ConfigParser()
 196     config.optionxform = str
 197     config.read(path_join(ini_path, 'default.ini'))
 198     default_features = config.items(section)
 199
 200     # Create a dict of the valid features to validate the other ini files.
 201     valid_features = {}
 202     max_feature_length = 0
 203     for feature in default_features:
 204         key = feature[0]
 205         valid_features[key] = ' '
 206         max_feature_length = max(max_feature_length, len(key))
 207
 208     # Get a list of driver ini files, excluding 'default.ini'.
 209     ini_files = [basename(file) for file in listdir(ini_path)
 210                  if file.endswith('.ini') and file != 'default.ini']
 211     ini_files.sort()
 212
 213     # Build up a list of the table header names from the ini filenames.
 214     header_names = []
 215     for ini_filename in ini_files:
 216         name = ini_filename[:-4]
 217         name = name.replace('_vf', 'vf')
 218
 219         # Pad the table header names to match the existing format.
 220         if '_vec' in name:
 221             pmd, vec = name.split('_')
 222             name = '{0:{fill}{align}7}vec'.format(pmd, fill='.', align='<')
 223         else:
 224             name = '{0:{fill}{align}10}'.format(name, fill=' ', align='<')
 225
 226         header_names.append(name)
 227
 228     # Create a dict of the defined features for each driver from the ini files.
 229     ini_data = {}
 230     for ini_filename in ini_files:
 231         config = configparser.ConfigParser()
 232         config.optionxform = str
 233         config.read(path_join(ini_path, ini_filename))
 234
 235         # Initialize the dict with the default.ini value.
 236         ini_data[ini_filename] = valid_features.copy()
 237
 238         # Check for a valid ini section.
 239         if not config.has_section(section):
 240             print("{}: File '{}' has no [{}] secton".format(warning,
 241                                                             ini_filename,
 242                                                             section))
 243             continue
 244
 245         # Check for valid features names.
 246         for name, value in config.items(section):
 247             if name not in valid_features:
 248                 print("{}: Unknown feature '{}' in '{}'".format(warning,
 249                                                                 name,
 250                                                                 ini_filename))
 251                 continue
 252
 253             if value is not '':
 254                 # Get the first letter only.
 255                 ini_data[ini_filename][name] = value[0]
 256
 257     # Print out the RST Driver Overview table from the ini file data.
 258     outfile = open(output_filename, 'w')
 259     num_cols = len(header_names)
 260
 261     print_table_css(outfile, table_id)
 262     print('.. table:: ' + table_name + '\n', file=outfile)
 263     print_table_header(outfile, num_cols, header_names, title)
 264     print_table_body(outfile, num_cols, ini_files, ini_data, default_features)
 265
 266
 267 def print_table_header(outfile, num_cols, header_names, title):
 268     """ Print the RST table header. The header names are vertical. """
 269     print_table_divider(outfile, num_cols)
 270
 271     line = ''
 272     for name in header_names:
 273         line += ' ' + name[0]
 274
 275     print_table_row(outfile, title, line)
 276
 277     for i in range(1, 10):
 278         line = ''
 279         for name in header_names:
 280             line += ' ' + name[i]
 281
 282         print_table_row(outfile, '', line)
 283
 284     print_table_divider(outfile, num_cols)
 285
 286
 287 def print_table_body(outfile, num_cols, ini_files, ini_data, default_features):
 288     """ Print out the body of the table. Each row is a NIC feature. """
 289
 290     for feature, _ in default_features:
 291         line = ''
 292
 293         for ini_filename in ini_files:
 294             line += ' ' + ini_data[ini_filename][feature]
 295
 296         print_table_row(outfile, feature, line)
 297
 298     print_table_divider(outfile, num_cols)
 299
 300
 301 def print_table_row(outfile, feature, line):
 302     """ Print a single row of the table with fixed formatting. """
 303     line = line.rstrip()
 304     print('   {:<{}}{}'.format(feature, feature_str_len, line), file=outfile)
 305
 306
 307 def print_table_divider(outfile, num_cols):
 308     """ Print the table divider line. """
 309     line = ' '
 310     column_dividers = ['='] * num_cols
 311     line += ' '.join(column_dividers)
 312
 313     feature = '=' * feature_str_len
 314
 315     print_table_row(outfile, feature, line)
 316
 317
 318 def print_table_css(outfile, table_id):
 319     template = """
 320 .. raw:: html
 321
 322    <style>
 323       .wy-nav-content {
 324          opacity: .99;
 325       }
 326       table#idx {
 327          cursor: default;
 328          overflow: hidden;
 329       }
 330       table#idx th, table#idx td {
 331          text-align: center;
 332       }
 333       table#idx th {
 334          font-size: 80%;
 335          white-space: pre-wrap;
 336          vertical-align: top;
 337          padding: 2px;
 338       }
 339       table#idx th:first-child {
 340          vertical-align: bottom;
 341       }
 342       table#idx td {
 343          font-size: 70%;
 344          padding: 1px;
 345       }
 346       table#idx td:first-child {
 347          padding-left: 1em;
 348          text-align: left;
 349       }
 350       table#idx tr:nth-child(2n-1) td {
 351          background-color: rgba(210, 210, 210, 0.2);
 352       }
 353       table#idx th:not(:first-child):hover,
 354       table#idx td:not(:first-child):hover {
 355          position: relative;
 356       }
 357       table#idx th:not(:first-child):hover::after,
 358       table#idx td:not(:first-child):hover::after {
 359          content: '';
 360          height: 6000px;
 361          top: -3000px;
 362          width: 100%;
 363          left: 0;
 364          position: absolute;
 365          z-index: -1;
 366          background-color: #ffb;
 367       }
 368       table#idx tr:hover td {
 369          background-color: #ffb;
 370       }
 371    </style>
 372 """
 373     print(template.replace("idx", "id%d" % (table_id)), file=outfile)
 374
 375
 376 def setup(app):
 377     table_file = dirname(__file__) + '/nics/overview_table.txt'
 378     generate_overview_table(table_file, 1,
 379                             'Features',
 380                             'Features availability in networking drivers',
 381                             'Feature')
 382     table_file = dirname(__file__) + '/cryptodevs/overview_feature_table.txt'
 383     generate_overview_table(table_file, 1,
 384                             'Features',
 385                             'Features availability in crypto drivers',
 386                             'Feature')
 387     table_file = dirname(__file__) + '/cryptodevs/overview_cipher_table.txt'
 388     generate_overview_table(table_file, 2,
 389                             'Cipher',
 390                             'Cipher algorithms in crypto drivers',
 391                             'Cipher algorithm')
 392     table_file = dirname(__file__) + '/cryptodevs/overview_auth_table.txt'
 393     generate_overview_table(table_file, 3,
 394                             'Auth',
 395                             'Authentication algorithms in crypto drivers',
 396                             'Authentication algorithm')
 397     table_file = dirname(__file__) + '/cryptodevs/overview_aead_table.txt'
 398     generate_overview_table(table_file, 4,
 399                             'AEAD',
 400                             'AEAD algorithms in crypto drivers',
 401                             'AEAD algorithm')
 402
 403     if LooseVersion(sphinx_version) < LooseVersion('1.3.1'):
 404         print('Upgrade sphinx to version >= 1.3.1 for '
 405               'improved Figure/Table number handling.')
 406         # Add a role to handle :numref: references.
 407         app.add_role('numref', numref_role)
 408         # Process the numref references once the doctree has been created.
 409         app.connect('doctree-resolved', process_numref)