c04e679e86
Add the machine definition 'default' which is special compared to 'native' (most optimized for current system) or any explicit type (external entity has to decide on the type). It defaults to the per arch agreed common minimal baseline needed for DPDK to reasonable work. That might not be the most optimized, but the most portable version while still being able to support the CPU features required for DPDK. Going forward this can be bumped up by the DPDK project, but it can never be an invariant like 'native'. Distributions and other needing portable code are expected to define the machine as 'default'. Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com> Acked-by: Luca Boccassi <bluca@debian.org> Acked-by: Bruce Richardson <bruce.richardson@intel.com>
131 lines
4.2 KiB
Meson
131 lines
4.2 KiB
Meson
# SPDX-License-Identifier: BSD-3-Clause
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# Copyright(c) 2017 Intel Corporation
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# set the machine type and cflags for it
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if meson.is_cross_build()
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machine = host_machine.cpu()
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else
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machine = get_option('machine')
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endif
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# machine type 'default' is special, it defaults to the per arch agreed common
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# minimal baseline needed for DPDK.
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# That might not be the most optimized, but the most portable version while
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# still being able to support the CPU features required for DPDK.
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# This can be bumped up by the DPDK project, but it can never be an
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# invariant like 'native'
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if machine == 'default'
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if host_machine.cpu_family().startswith('x86')
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# matches the old pre-meson build systems default
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machine = 'corei7'
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elif host_machine.cpu_family().startswith('arm')
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machine = 'armv7-a'
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elif host_machine.cpu_family().startswith('aarch')
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# arm64 manages defaults in config/arm/meson.build
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machine = 'default'
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elif host_machine.cpu_family().startswith('ppc')
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machine = 'power8'
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endif
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endif
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dpdk_conf.set('RTE_MACHINE', machine)
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machine_args = []
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# ppc64 does not support -march= at all, use -mcpu and -mtune for that
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if host_machine.cpu_family().startswith('ppc')
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machine_args += '-mcpu=' + machine
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machine_args += '-mtune=' + machine
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else
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machine_args += '-march=' + machine
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endif
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toolchain = cc.get_id()
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dpdk_conf.set_quoted('RTE_TOOLCHAIN', toolchain)
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dpdk_conf.set('RTE_TOOLCHAIN_' + toolchain.to_upper(), 1)
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add_project_link_arguments('-Wl,--no-as-needed', language: 'c')
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dpdk_extra_ldflags += '-Wl,--no-as-needed'
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# use pthreads
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add_project_link_arguments('-pthread', language: 'c')
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dpdk_extra_ldflags += '-pthread'
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# some libs depend on maths lib
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add_project_link_arguments('-lm', language: 'c')
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dpdk_extra_ldflags += '-lm'
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# for linux link against dl, for bsd execinfo
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if host_machine.system() == 'linux'
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link_lib = 'dl'
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else
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link_lib = 'execinfo'
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endif
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add_project_link_arguments('-l' + link_lib, language: 'c')
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dpdk_extra_ldflags += '-l' + link_lib
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# check for libraries used in multiple places in DPDK
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has_libnuma = 0
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numa_dep = cc.find_library('numa', required: false)
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if numa_dep.found() and cc.has_header('numaif.h')
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dpdk_conf.set10('RTE_HAS_LIBNUMA', true)
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has_libnuma = 1
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add_project_link_arguments('-lnuma', language: 'c')
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dpdk_extra_ldflags += '-lnuma'
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endif
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# check for strlcpy
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if host_machine.system() == 'linux' and cc.find_library('bsd',
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required: false).found() and cc.has_header('bsd/string.h')
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dpdk_conf.set('RTE_USE_LIBBSD', 1)
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add_project_link_arguments('-lbsd', language: 'c')
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dpdk_extra_ldflags += '-lbsd'
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endif
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# add -include rte_config to cflags
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add_project_arguments('-include', 'rte_config.h', language: 'c')
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# enable extra warnings and disable any unwanted warnings
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warning_flags = [
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'-Wsign-compare',
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'-Wcast-qual',
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'-Wno-address-of-packed-member'
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]
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if cc.sizeof('void *') == 4
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# for 32-bit, don't warn about casting a 32-bit pointer to 64-bit int - it's fine!!
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warning_flags += '-Wno-pointer-to-int-cast'
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endif
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foreach arg: warning_flags
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if cc.has_argument(arg)
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add_project_arguments(arg, language: 'c')
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endif
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endforeach
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# set other values pulled from the build options
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dpdk_conf.set('RTE_MAX_LCORE', get_option('max_lcores'))
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dpdk_conf.set('RTE_MAX_NUMA_NODES', get_option('max_numa_nodes'))
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dpdk_conf.set('RTE_LIBEAL_USE_HPET', get_option('use_hpet'))
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dpdk_conf.set('RTE_EAL_ALLOW_INV_SOCKET_ID', get_option('allow_invalid_socket_id'))
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# values which have defaults which may be overridden
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dpdk_conf.set('RTE_MAX_VFIO_GROUPS', 64)
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dpdk_conf.set('RTE_DRIVER_MEMPOOL_BUCKET_SIZE_KB', 64)
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dpdk_conf.set('RTE_LIBRTE_DPAA2_USE_PHYS_IOVA', true)
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compile_time_cpuflags = []
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if host_machine.cpu_family().startswith('x86')
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arch_subdir = 'x86'
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elif host_machine.cpu_family().startswith('arm') or host_machine.cpu_family().startswith('aarch')
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arch_subdir = 'arm'
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elif host_machine.cpu_family().startswith('ppc')
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arch_subdir = 'ppc_64'
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endif
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subdir(arch_subdir)
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dpdk_conf.set('RTE_COMPILE_TIME_CPUFLAGS', ','.join(compile_time_cpuflags))
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# set the install path for the drivers
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dpdk_conf.set_quoted('RTE_EAL_PMD_PATH', eal_pmd_path)
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install_headers('rte_config.h', subdir: get_option('include_subdir_arch'))
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# enable VFIO only if it is linux OS
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dpdk_conf.set('RTE_EAL_VFIO', host_machine.system() == 'linux')
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