1 # SPDX-License-Identifier: BSD-3-Clause
2 # Copyright(c) 2017-2019 Intel Corporation
8 # Defines the order in which the drivers are buit.
9 dpdk_driver_classes = ['common',
11 'mempool', # depends on common and bus.
12 'net', # depends on common, bus and mempool.
13 'crypto', # depends on common, bus and mempool (net in future).
14 'compress', # depends on common, bus, mempool.
15 'event', # depends on common, bus, mempool and net.
16 'baseband', # depends on common and bus.
17 'raw'] # depends on common, bus, mempool, net and event.
19 disabled_drivers = get_option('disable_drivers').split(',')
21 default_cflags = machine_args
22 if cc.has_argument('-Wno-format-truncation')
23 default_cflags += '-Wno-format-truncation'
26 foreach class:dpdk_driver_classes
29 config_flag_fmt = '' # format string used to set the value in dpdk_conf
30 driver_name_fmt = '' # format string for driver name, used to name
31 # the library, the dependency and to find the
32 # version file for linking
38 drv_path = join_paths(class, drv)
40 # set up empty variables used for build
41 build = true # set to false to disable, e.g. missing deps
42 reason = '<unknown reason>' # set if build == false to explain
45 allow_experimental_apis = false
48 cflags = default_cflags
49 includes = [include_directories(drv_path)]
50 # set up internal deps. Drivers can append/override as necessary
52 # ext_deps: Stores external library dependency got
53 # using dependency() (preferred) or find_library().
54 # For the find_library() case (but not with dependency()) we also
55 # need to specify the "-l" flags in pkgconfig_extra_libs variable
56 # too, so that it can be reflected in the pkgconfig output for
59 pkgconfig_extra_libs = []
61 # pull in driver directory which should assign to each of the above
64 if drv_path in disabled_drivers
66 reason = 'Explicitly disabled via build config'
68 # get dependency objs from strings
69 shared_deps = ext_deps
70 static_deps = ext_deps
72 if not is_variable('shared_rte_' + d)
74 reason = 'Missing internal dependency, "@0@"'.format(d)
75 message('Disabling @1@ [@2@]: missing internal dependency "@0@"'
76 .format(d, name, 'drivers/' + drv_path))
78 shared_deps += [get_variable('shared_rte_' + d)]
79 static_deps += [get_variable('static_rte_' + d)]
85 # some driver directories are placeholders which
86 # are never built, so we allow suppression of the
87 # component disable printout in those cases
89 dpdk_drvs_disabled += drv_path
90 set_variable(drv_path.underscorify() +
91 '_disable_reason', reason)
96 dpdk_conf.set(config_flag_fmt.format(name.to_upper()),1)
97 lib_name = driver_name_fmt.format(name)
99 if allow_experimental_apis
100 cflags += '-DALLOW_EXPERIMENTAL_API'
103 dpdk_extra_ldflags += pkgconfig_extra_libs
105 # generate pmdinfo sources by building a temporary
106 # lib and then running pmdinfogen on the contents of
107 # that lib. The final lib reuses the object files and
108 # adds in the new source file.
109 out_filename = lib_name + '.pmd.c'
110 tmp_lib = static_library('tmp_' + lib_name,
112 include_directories: includes,
113 dependencies: static_deps,
115 objs += tmp_lib.extract_all_objects()
116 sources = custom_target(out_filename,
117 command: [pmdinfo, tmp_lib.full_path(),
118 '@OUTPUT@', pmdinfogen],
119 output: out_filename,
120 depends: [pmdinfogen, tmp_lib])
122 if get_option('per_library_versions')
123 lib_version = '@0@.1'.format(version)
124 so_version = '@0@'.format(version)
126 lib_version = major_version
127 so_version = major_version
130 # now build the static driver
131 static_lib = static_library(lib_name,
134 include_directories: includes,
135 dependencies: static_deps,
139 # now build the shared driver
140 version_map = '@0@/@1@/@2@_version.map'.format(
141 meson.current_source_dir(),
143 shared_lib = shared_library(lib_name,
146 include_directories: includes,
147 dependencies: shared_deps,
149 link_args: '-Wl,--version-script=' + version_map,
150 link_depends: version_map,
151 version: lib_version,
152 soversion: so_version,
154 install_dir: driver_install_path)
156 # create a dependency object and add it to the global dictionary so
157 # testpmd or other built-in apps can find it if necessary
158 shared_dep = declare_dependency(link_with: shared_lib,
159 include_directories: includes,
160 dependencies: shared_deps)
161 static_dep = declare_dependency(link_with: static_lib,
162 include_directories: includes,
163 dependencies: static_deps)
165 dpdk_drivers += static_lib
167 set_variable('shared_@0@'.format(lib_name), shared_dep)
168 set_variable('static_@0@'.format(lib_name), static_dep)
169 dependency_name = ''.join(lib_name.split('rte_'))
170 message('drivers/@0@: Defining dependency "@1@"'.format(
171 drv_path, dependency_name))
175 set_variable(class + '_drivers', class_drivers)