config: enable/disable drivers in Arm builds
Add support for enabling or disabling drivers for Arm cross build. Do not implement any enable/disable lists yet. Enabling drivers is useful when building for an SoC where we only want to build a few drivers. That way the list won't be too long. Similarly, disabling drivers is useful when we want to disable only a few drivers. Both of these are advantageous mainly in aarch64 -> aarch64 (or arch -> same arch) builds, where the build machine may have the required driver dependencies, yet we don't want to build drivers for a specific SoC. If enable_drivers is a non-empty list, build only those drivers, otherwise build all drivers and add them to enable_drivers. If disable_drivers is non-empty list, build all drivers specified in enable_drivers except those in disable_drivers. There are two drivers, bus/pci and bus/vdev, which break the build if not enabled. Address this by always enabling these if the user disables them or doesn't specify in their allowlist. Also remove the old Makefile arm configuration options which don't do anything in Meson. Signed-off-by: Juraj Linkeš <juraj.linkes@pantheon.tech> Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com> Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com> Acked-by: Bruce Richardson <bruce.richardson@intel.com>
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@ -14,6 +14,7 @@
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os.getenv('MESON_SUBDIR', '.'))
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for path in sys.argv[1].split(','):
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for p in iglob(os.path.join(root, path)):
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if os.path.isdir(p):
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print(os.path.relpath(p))
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if path:
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for p in iglob(os.path.join(root, path)):
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if os.path.isdir(p):
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print(os.path.relpath(p))
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@ -17,9 +17,6 @@ flags_common = [
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# ['RTE_ARM64_MEMCPY_ALIGN_MASK', 0xF],
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# ['RTE_ARM64_MEMCPY_STRICT_ALIGN', false],
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['RTE_NET_FM10K', false],
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['RTE_NET_AVP', false],
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['RTE_SCHED_VECTOR', false],
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['RTE_ARM_USE_WFE', false],
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['RTE_ARCH_ARM64', true],
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@ -126,7 +123,6 @@ implementer_cavium = {
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['RTE_MACHINE', '"octeontx2"'],
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['RTE_ARM_FEATURE_ATOMICS', true],
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['RTE_USE_C11_MEM_MODEL', true],
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['RTE_EAL_IGB_UIO', false],
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['RTE_MAX_LCORE', 36],
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['RTE_MAX_NUMA_NODES', 1]
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]
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@ -63,6 +63,10 @@ if not is_windows
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pmd_subdir_opt)
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endif
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# init disable/enable driver lists that will be populated in different places
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disable_drivers = ''
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enable_drivers = ''
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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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@ -234,3 +234,11 @@ There are other options you may specify in a cross file to tailor the build::
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numa = false # set to false to force building for a non-NUMA system
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# if not set or set to true, the build system will build for a NUMA
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# system only if libnuma is installed
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disable_drivers = 'bus/dpaa,crypto/*' # add disabled drivers
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# valid values are dir/subdirs in the drivers directory
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# wildcards are allowed
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enable_drivers = 'common/*,bus/*' # build only these drivers
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# valid values are dir/subdirs in the drivers directory
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# wildcards are allowed
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@ -14,13 +14,13 @@ qat_compress = true
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qat_compress_path = 'compress/qat'
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qat_compress_relpath = '../../' + qat_compress_path
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if disabled_drivers.contains(qat_crypto_path)
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if disable_drivers.contains(qat_crypto_path)
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qat_crypto = false
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dpdk_drvs_disabled += qat_crypto_path
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set_variable(qat_crypto_path.underscorify() + '_disable_reason',
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'Explicitly disabled via build config')
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endif
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if disabled_drivers.contains(qat_compress_path)
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if disable_drivers.contains(qat_compress_path)
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qat_compress = false
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dpdk_drvs_disabled += qat_compress_path
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set_variable(qat_compress_path.underscorify() + '_disable_reason',
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@ -20,8 +20,25 @@ subdirs = [
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'baseband', # depends on common and bus.
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]
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disabled_drivers = run_command(list_dir_globs, get_option('disable_drivers'),
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).stdout().split()
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if meson.is_cross_build()
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disable_drivers += ',' + meson.get_cross_property('disable_drivers', '')
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enable_drivers += ',' + meson.get_cross_property('enable_drivers', '')
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endif
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# add cmdline disabled drivers and meson disabled drivers together
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disable_drivers += ',' + get_option('disable_drivers')
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disable_drivers = run_command(list_dir_globs, disable_drivers).stdout().split()
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# add cmdline enabled drivers and meson enabled drivers together
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enable_drivers = ',' + get_option('enable_drivers')
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enable_drivers = run_command(list_dir_globs, enable_drivers).stdout().split()
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if enable_drivers.length() == 0
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enable_drivers = run_command(list_dir_globs, '*/*').stdout().split()
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endif
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# these drivers must always be enabled, otherwise the build breaks
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always_enable = ['bus/pci', 'bus/vdev']
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enable_drivers += always_enable
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default_cflags = machine_args
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default_cflags += ['-DALLOW_EXPERIMENTAL_API']
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@ -75,9 +92,16 @@ foreach subpath:subdirs
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ext_deps = []
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pkgconfig_extra_libs = []
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if disabled_drivers.contains(drv_path)
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if not enable_drivers.contains(drv_path)
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build = false
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reason = 'explicitly disabled via build config'
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reason = 'not in enabled drivers build config'
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elif disable_drivers.contains(drv_path)
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if always_enable.contains(drv_path)
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message('Driver @0@ cannot be disabled, not disabling.'.format(drv_path))
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else
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build = false
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reason = 'explicitly disabled via build config'
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endif
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else
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# pull in driver directory which should update all the local variables
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subdir(drv_path)
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@ -10,6 +10,8 @@ option('drivers_install_subdir', type: 'string', value: 'dpdk/pmds-<VERSION>',
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description: 'Subdirectory of libdir where to install PMDs. Defaults to using a versioned subdirectory.')
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option('enable_docs', type: 'boolean', value: false,
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description: 'build documentation')
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option('enable_drivers', type: 'string', value: '',
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description: 'Comma-separated list of drivers to build. If unspecified, build all drivers.')
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option('enable_driver_sdk', type: 'boolean', value: false,
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description: 'Install headers to build drivers.')
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option('enable_kmods', type: 'boolean', value: false,
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