9036180f61
The AVX512 packed ring datapath selection was only done
at build time, but it should also be checked at runtime
that the CPU supports it.
This patch add a CPU flags check so that non-vectorized
path is selected at runtime if AVX512 is not supported.
Also in meson build enable vectorization only for relevant file, not for
all driver.
Fixes: ccb10995c2 ("net/virtio: add election for vectorized path")
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Maxime Coquelin <maxime.coquelin@redhat.com>
48 lines
1.6 KiB
Meson
48 lines
1.6 KiB
Meson
# SPDX-License-Identifier: BSD-3-Clause
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# Copyright(c) 2018 Intel Corporation
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sources += files('virtio_ethdev.c',
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'virtio_pci.c',
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'virtio_rxtx.c',
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'virtio_rxtx_simple.c',
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'virtqueue.c')
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deps += ['kvargs', 'bus_pci']
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if arch_subdir == 'x86'
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if not machine_args.contains('-mno-avx512f')
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if cc.has_argument('-mavx512f') and cc.has_argument('-mavx512vl') and cc.has_argument('-mavx512bw')
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cflags += ['-DCC_AVX512_SUPPORT']
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virtio_avx512_lib = static_library('virtio_avx512_lib',
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'virtio_rxtx_packed_avx.c',
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dependencies: [static_rte_ethdev,
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static_rte_kvargs, static_rte_bus_pci],
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include_directories: includes,
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c_args: [cflags, '-mavx512f', '-mavx512bw', '-mavx512vl'])
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objs += virtio_avx512_lib.extract_objects('virtio_rxtx_packed_avx.c')
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if (toolchain == 'gcc' and cc.version().version_compare('>=8.3.0'))
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cflags += '-DVHOST_GCC_UNROLL_PRAGMA'
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elif (toolchain == 'clang' and cc.version().version_compare('>=3.7.0'))
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cflags += '-DVHOST_CLANG_UNROLL_PRAGMA'
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elif (toolchain == 'icc' and cc.version().version_compare('>=16.0.0'))
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cflags += '-DVHOST_ICC_UNROLL_PRAGMA'
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endif
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endif
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endif
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sources += files('virtio_rxtx_simple_sse.c')
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elif arch_subdir == 'ppc'
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sources += files('virtio_rxtx_simple_altivec.c')
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elif arch_subdir == 'arm' and host_machine.cpu_family().startswith('aarch64')
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sources += files('virtio_rxtx_simple_neon.c')
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endif
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if is_linux
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dpdk_conf.set('RTE_VIRTIO_USER', 1)
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sources += files('virtio_user_ethdev.c',
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'virtio_user/vhost_kernel.c',
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'virtio_user/vhost_kernel_tap.c',
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'virtio_user/vhost_user.c',
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'virtio_user/virtio_user_dev.c')
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deps += ['bus_vdev']
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endif
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