diff options
Diffstat (limited to 'src/seastar/dpdk/config/meson.build')
| -rw-r--r-- | src/seastar/dpdk/config/meson.build | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/src/seastar/dpdk/config/meson.build b/src/seastar/dpdk/config/meson.build new file mode 100644 index 000000000..0d25646f5 --- /dev/null +++ b/src/seastar/dpdk/config/meson.build @@ -0,0 +1,189 @@ +# SPDX-License-Identifier: BSD-3-Clause +# Copyright(c) 2017-2019 Intel Corporation + +# check the OS is supported, rather than going any further +supported_exec_envs = ['freebsd', 'linux', 'windows'] +exec_env = host_machine.system() +if not supported_exec_envs.contains(exec_env) + error('unsupported system type "@0@"'.format(exec_env)) +endif + +# define a handy variable for checking which OS we have. +# gives us "is_windows", "is_freebsd" and "is_linux" +foreach env:supported_exec_envs + set_variable('is_' + env, exec_env == env) +endforeach + +# set the major version, which might be used by drivers and libraries +# depending on the configuration options +pver = meson.project_version().split('.') +major_version = '@0@.@1@'.format(pver.get(0), pver.get(1)) + +# extract all version information into the build configuration +dpdk_conf.set('RTE_VER_YEAR', pver.get(0).to_int()) +dpdk_conf.set('RTE_VER_MONTH', pver.get(1).to_int()) +if pver.get(2).contains('-rc') + rc_ver = pver.get(2).split('-rc') + dpdk_conf.set('RTE_VER_MINOR', rc_ver.get(0).to_int()) + dpdk_conf.set_quoted('RTE_VER_SUFFIX', '-rc') + dpdk_conf.set('RTE_VER_RELEASE', rc_ver.get(1).to_int()) +else + dpdk_conf.set('RTE_VER_MINOR', pver.get(2).to_int()) + dpdk_conf.set_quoted('RTE_VER_SUFFIX', '') +# for actual, non-rc releases, set the release value to 99 to ensure releases +# have higher version numbers than their respective release candidates + dpdk_conf.set('RTE_VER_RELEASE', 99) +endif + +pmd_subdir_opt = get_option('drivers_install_subdir') +if pmd_subdir_opt.contains('<VERSION>') + pmd_subdir_opt = major_version.join(pmd_subdir_opt.split('<VERSION>')) +endif +driver_install_path = join_paths(get_option('libdir'), pmd_subdir_opt) +eal_pmd_path = join_paths(get_option('prefix'), driver_install_path) + +# driver .so files often depend upon the bus drivers for their connect bus, +# e.g. ixgbe depends on librte_bus_pci. This means that the bus drivers need +# to be in the library path, so symlink the drivers from the main lib directory. +meson.add_install_script('../buildtools/symlink-drivers-solibs.sh', + get_option('libdir'), + pmd_subdir_opt) + +# set the machine type and cflags for it +if meson.is_cross_build() + machine = host_machine.cpu() +else + machine = get_option('machine') +endif + +# machine type 'default' is special, it defaults to the per arch agreed common +# minimal baseline needed for DPDK. +# That might not be the most optimized, but the most portable version while +# still being able to support the CPU features required for DPDK. +# This can be bumped up by the DPDK project, but it can never be an +# invariant like 'native' +if machine == 'default' + if host_machine.cpu_family().startswith('x86') + # matches the old pre-meson build systems default + machine = 'corei7' + elif host_machine.cpu_family().startswith('arm') + machine = 'armv7-a' + elif host_machine.cpu_family().startswith('aarch') + # arm64 manages defaults in config/arm/meson.build + machine = 'default' + elif host_machine.cpu_family().startswith('ppc') + machine = 'power8' + endif +endif + +dpdk_conf.set('RTE_MACHINE', machine) +machine_args = [] + +# ppc64 does not support -march= at all, use -mcpu and -mtune for that +if host_machine.cpu_family().startswith('ppc') + machine_args += '-mcpu=' + machine + machine_args += '-mtune=' + machine +else + machine_args += '-march=' + machine +endif + +toolchain = cc.get_id() +dpdk_conf.set_quoted('RTE_TOOLCHAIN', toolchain) +dpdk_conf.set('RTE_TOOLCHAIN_' + toolchain.to_upper(), 1) + +dpdk_conf.set('RTE_ARCH_64', cc.sizeof('void *') == 8) + +add_project_link_arguments('-Wl,--no-as-needed', language: 'c') +dpdk_extra_ldflags += '-Wl,--no-as-needed' + +# use pthreads +add_project_link_arguments('-pthread', language: 'c') +dpdk_extra_ldflags += '-pthread' + +# on some OS, maths functions are in a separate library +if cc.find_library('libm', required : false).found() + # some libs depend on maths lib + add_project_link_arguments('-lm', language: 'c') + dpdk_extra_ldflags += '-lm' +endif + +# for linux link against dl, for bsd execinfo +if is_linux + link_lib = 'dl' +elif is_freebsd + link_lib = 'execinfo' +else + link_lib = '' +endif + +# if link_lib is empty, do not add it to project properties +if link_lib != '' + add_project_link_arguments('-l' + link_lib, language: 'c') + dpdk_extra_ldflags += '-l' + link_lib +endif + +# check for libraries used in multiple places in DPDK +has_libnuma = 0 +numa_dep = cc.find_library('numa', required: false) +if numa_dep.found() and cc.has_header('numaif.h') + dpdk_conf.set10('RTE_HAS_LIBNUMA', true) + has_libnuma = 1 + add_project_link_arguments('-lnuma', language: 'c') + dpdk_extra_ldflags += '-lnuma' +endif + +# check for libbsd +libbsd = dependency('libbsd', required: false) +if libbsd.found() + dpdk_conf.set('RTE_USE_LIBBSD', 1) +endif + +# add -include rte_config to cflags +add_project_arguments('-include', 'rte_config.h', language: 'c') + +# enable extra warnings and disable any unwanted warnings +warning_flags = [ + '-Wsign-compare', + '-Wcast-qual', + '-Wno-address-of-packed-member' +] +if not dpdk_conf.get('RTE_ARCH_64') +# for 32-bit, don't warn about casting a 32-bit pointer to 64-bit int - it's fine!! + warning_flags += '-Wno-pointer-to-int-cast' +endif +foreach arg: warning_flags + if cc.has_argument(arg) + add_project_arguments(arg, language: 'c') + endif +endforeach + +# set other values pulled from the build options +dpdk_conf.set('RTE_MAX_LCORE', get_option('max_lcores')) +dpdk_conf.set('RTE_MAX_NUMA_NODES', get_option('max_numa_nodes')) +dpdk_conf.set('RTE_MAX_ETHPORTS', get_option('max_ethports')) +dpdk_conf.set('RTE_LIBEAL_USE_HPET', get_option('use_hpet')) +dpdk_conf.set('RTE_EAL_ALLOW_INV_SOCKET_ID', get_option('allow_invalid_socket_id')) +# values which have defaults which may be overridden +dpdk_conf.set('RTE_MAX_VFIO_GROUPS', 64) +dpdk_conf.set('RTE_DRIVER_MEMPOOL_BUCKET_SIZE_KB', 64) +dpdk_conf.set('RTE_LIBRTE_DPAA2_USE_PHYS_IOVA', true) + + +compile_time_cpuflags = [] +if host_machine.cpu_family().startswith('x86') + arch_subdir = 'x86' +elif host_machine.cpu_family().startswith('arm') or host_machine.cpu_family().startswith('aarch') + arch_subdir = 'arm' +elif host_machine.cpu_family().startswith('ppc') + arch_subdir = 'ppc_64' +endif +subdir(arch_subdir) +dpdk_conf.set('RTE_COMPILE_TIME_CPUFLAGS', ','.join(compile_time_cpuflags)) + +# set the install path for the drivers +dpdk_conf.set_quoted('RTE_EAL_PMD_PATH', eal_pmd_path) + +install_headers('rte_config.h', subdir: get_option('include_subdir_arch')) + +# enable VFIO only if it is linux OS +dpdk_conf.set('RTE_EAL_VFIO', is_linux) |