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Searched refs:bitwidth (Results 1 – 10 of 10) sorted by relevance

/dpdk/doc/guides/howto/
H A Davx512.rst9 and by the user with a commandline argument. DPDK has a setting for max SIMD bitwidth,
17 This can be done by modifying the EAL setting for max SIMD bitwidth to 512, as by default it is 256,
31 The user can select to use AVX-512 at runtime, using the following argument to set the max bitwidth…
33 ./app/dpdk-testpmd --force-max-simd-bitwidth=512
35 This will override any further changes to the max SIMD bitwidth in DPDK,
/dpdk/doc/guides/linux_gsg/
H A Deal_args.include.rst214 * ``--force-max-simd-bitwidth=<val>``:
216 Specify the maximum SIMD bitwidth size to handle. This limits which vector paths,
217 if any, are taken, as any paths taken must use a bitwidth below the max bitwidth limit.
220 --force-max-simd-bitwidth=512
222 The following example shows limiting the bitwidth to 64-bits to disable all vector code::
224 --force-max-simd-bitwidth=64
226 To disable use of max SIMD bitwidth limit::
228 --force-max-simd-bitwidth=0
/dpdk/lib/eal/common/
H A Deal_common_options.c350 internal_cfg->max_simd_bitwidth.bitwidth = RTE_VECT_DEFAULT_SIMD_BITWIDTH; in eal_reset_internal_config()
1474 unsigned long bitwidth; in eal_parse_simd_bitwidth() local
1483 bitwidth = strtoul(arg, &end, 0); in eal_parse_simd_bitwidth()
1486 if (errno != 0 || end == NULL || *end != '\0' || bitwidth > RTE_VECT_SIMD_MAX) in eal_parse_simd_bitwidth()
1489 if (bitwidth == 0) in eal_parse_simd_bitwidth()
1490 bitwidth = (unsigned long) RTE_VECT_SIMD_MAX; in eal_parse_simd_bitwidth()
1491 ret = rte_vect_set_max_simd_bitwidth(bitwidth); in eal_parse_simd_bitwidth()
2129 return internal_conf->max_simd_bitwidth.bitwidth; in rte_vect_get_max_simd_bitwidth()
2133 rte_vect_set_max_simd_bitwidth(uint16_t bitwidth) in rte_vect_set_max_simd_bitwidth() argument
2142 if (bitwidth < RTE_VECT_SIMD_DISABLED || !rte_is_power_of_2(bitwidth)) { in rte_vect_set_max_simd_bitwidth()
[all …]
H A Deal_internal_cfg.h40 uint16_t bitwidth; /**< bitwidth value */ member
/dpdk/doc/guides/prog_guide/
H A Dpacket_classif_access_ctrl.rst371 Requires max SIMD bitwidth to be at least 64.
374 Requires max SIMD bitwidth to be at least 128.
377 Requires max SIMD bitwidth to be at least 256.
380 in parallel. Requires NEON support. Requires max SIMD bitwidth to be at least 128.
383 flows in parallel. Requires ALTIVEC support. Requires max SIMD bitwidth to be at least 128.
387 Requires AVX512 support. Requires max SIMD bitwidth to be at least 256.
391 Requires AVX512 support. Requires max SIMD bitwidth to be at least 512.
399 Runtime algorithm selection obeys EAL max SIMD bitwidth parameter.
H A Denv_abstraction_layer.rst581 Max SIMD bitwidth
584 The EAL provides a single setting to limit the max SIMD bitwidth used by DPDK,
587 'rte_vect_set_max_simd_bitwidth(uint16_t bitwidth)' function,
589 … value can be overridden by the user using the EAL command-line option '--force-max-simd-bitwidth'.
592 the value of the max SIMD bitwidth must also be checked, and can be retrieved using the
/dpdk/app/test-acl/
H A Dtest-acl.sh62 --force-max-simd-bitwidth=0 --no-pci -- \
/dpdk/lib/eal/include/generic/
H A Drte_vect.h233 int rte_vect_set_max_simd_bitwidth(uint16_t bitwidth);
/dpdk/doc/guides/nics/
H A Dice.rst267 If the CPU supports AVX512 and EAL argument ``--force-max-simd-bitwidth``
/dpdk/doc/guides/rel_notes/
H A Drelease_20_11.rst34 * **Added support for limiting maximum SIMD bitwidth.**
39 ``--force-max-simd-bitwidth``.