1 # SPDX-License-Identifier: BSD-3-Clause
2 # Copyright(c) 2017 Intel Corporation
4 # set the machine type and cflags for it
5 if meson.is_cross_build()
6 machine = host_machine.cpu()
8 machine = get_option('machine')
11 # machine type 'default' is special, it defaults to the per arch agreed common
12 # minimal baseline needed for DPDK.
13 # That might not be the most optimized, but the most portable version while
14 # still being able to support the CPU features required for DPDK.
15 # This can be bumped up by the DPDK project, but it can never be an
16 # invariant like 'native'
17 if machine == 'default'
18 if host_machine.cpu_family().startswith('x86')
19 # matches the old pre-meson build systems default
21 elif host_machine.cpu_family().startswith('arm')
23 elif host_machine.cpu_family().startswith('aarch')
24 # arm64 manages defaults in config/arm/meson.build
26 elif host_machine.cpu_family().startswith('ppc')
31 dpdk_conf.set('RTE_MACHINE', machine)
34 # ppc64 does not support -march= at all, use -mcpu and -mtune for that
35 if host_machine.cpu_family().startswith('ppc')
36 machine_args += '-mcpu=' + machine
37 machine_args += '-mtune=' + machine
39 machine_args += '-march=' + machine
42 toolchain = cc.get_id()
43 dpdk_conf.set_quoted('RTE_TOOLCHAIN', toolchain)
44 dpdk_conf.set('RTE_TOOLCHAIN_' + toolchain.to_upper(), 1)
46 dpdk_conf.set('RTE_ARCH_64', cc.sizeof('void *') == 8)
48 add_project_link_arguments('-Wl,--no-as-needed', language: 'c')
49 dpdk_extra_ldflags += '-Wl,--no-as-needed'
52 add_project_link_arguments('-pthread', language: 'c')
53 dpdk_extra_ldflags += '-pthread'
55 # some libs depend on maths lib
56 add_project_link_arguments('-lm', language: 'c')
57 dpdk_extra_ldflags += '-lm'
59 # for linux link against dl, for bsd execinfo
60 if host_machine.system() == 'linux'
65 add_project_link_arguments('-l' + link_lib, language: 'c')
66 dpdk_extra_ldflags += '-l' + link_lib
68 # check for libraries used in multiple places in DPDK
70 numa_dep = cc.find_library('numa', required: false)
71 if numa_dep.found() and cc.has_header('numaif.h')
72 dpdk_conf.set10('RTE_HAS_LIBNUMA', true)
74 add_project_link_arguments('-lnuma', language: 'c')
75 dpdk_extra_ldflags += '-lnuma'
79 if host_machine.system() == 'linux'
80 libbsd = dependency('libbsd', required: false)
82 dpdk_conf.set('RTE_USE_LIBBSD', 1)
86 # add -include rte_config to cflags
87 add_project_arguments('-include', 'rte_config.h', language: 'c')
89 # enable extra warnings and disable any unwanted warnings
93 '-Wno-address-of-packed-member'
95 if not dpdk_conf.get('RTE_ARCH_64')
96 # for 32-bit, don't warn about casting a 32-bit pointer to 64-bit int - it's fine!!
97 warning_flags += '-Wno-pointer-to-int-cast'
99 foreach arg: warning_flags
100 if cc.has_argument(arg)
101 add_project_arguments(arg, language: 'c')
105 # set other values pulled from the build options
106 dpdk_conf.set('RTE_MAX_LCORE', get_option('max_lcores'))
107 dpdk_conf.set('RTE_MAX_NUMA_NODES', get_option('max_numa_nodes'))
108 dpdk_conf.set('RTE_MAX_ETHPORTS', get_option('max_ethports'))
109 dpdk_conf.set('RTE_LIBEAL_USE_HPET', get_option('use_hpet'))
110 dpdk_conf.set('RTE_EAL_ALLOW_INV_SOCKET_ID', get_option('allow_invalid_socket_id'))
111 # values which have defaults which may be overridden
112 dpdk_conf.set('RTE_MAX_VFIO_GROUPS', 64)
113 dpdk_conf.set('RTE_DRIVER_MEMPOOL_BUCKET_SIZE_KB', 64)
114 dpdk_conf.set('RTE_LIBRTE_DPAA2_USE_PHYS_IOVA', true)
117 compile_time_cpuflags = []
118 if host_machine.cpu_family().startswith('x86')
120 elif host_machine.cpu_family().startswith('arm') or host_machine.cpu_family().startswith('aarch')
122 elif host_machine.cpu_family().startswith('ppc')
123 arch_subdir = 'ppc_64'
126 dpdk_conf.set('RTE_COMPILE_TIME_CPUFLAGS', ','.join(compile_time_cpuflags))
128 # set the install path for the drivers
129 dpdk_conf.set_quoted('RTE_EAL_PMD_PATH', eal_pmd_path)
131 install_headers('rte_config.h', subdir: get_option('include_subdir_arch'))
133 # enable VFIO only if it is linux OS
134 dpdk_conf.set('RTE_EAL_VFIO', host_machine.system() == 'linux')