v2: - Added some documentation. - Modified default max bitwidth for Arm. - Moved mlx5 condition check into existing check vec support function. - Added max SIMD bitwidth checks to some libraries.
A number of components in DPDK have optional AVX-512 or other vector code paths which can be selected at runtime. Rather than having each component provide its own mechanism to select a code path, this patchset adds support for a single setting to control what code paths are used. This can be used to enable some non-default code paths e.g. ones using AVX-512, but also to limit the code paths to certain vector widths, or to scalar code only, which is useful for testing. The max SIMD bitwidth setting can be set by the app itself through use of the available API, or can be overriden by a commandline argument passed by the user. Ciara Power (17): eal: add max SIMD bitwidth eal: add default SIMD bitwidth values doc: add detail on using max SIMD bitwidth net/i40e: add checks for max SIMD bitwidth net/axgbe: add checks for max SIMD bitwidth net/bnxt: add checks for max SIMD bitwidth net/enic: add checks for max SIMD bitwidth net/fm10k: add checks for max SIMD bitwidth net/iavf: add checks for max SIMD bitwidth net/ice: add checks for max SIMD bitwidth net/ixgbe: add checks for max SIMD bitwidth net/mlx5: add checks for max SIMD bitwidth net/virtio: add checks for max SIMD bitwidth distributor: add checks for max SIMD bitwidth member: add checks for max SIMD bitwidth efd: add checks for max SIMD bitwidth net: add checks for max SIMD bitwidth doc/guides/howto/avx512.rst | 36 +++++++++++ doc/guides/linux_gsg/eal_args.include.rst | 12 ++++ .../prog_guide/env_abstraction_layer.rst | 31 +++++++++ drivers/net/axgbe/axgbe_rxtx.c | 3 +- drivers/net/bnxt/bnxt_ethdev.c | 6 +- drivers/net/enic/enic_rxtx_vec_avx2.c | 3 +- drivers/net/fm10k/fm10k_ethdev.c | 11 +++- drivers/net/i40e/i40e_rxtx.c | 19 ++++-- drivers/net/iavf/iavf_rxtx.c | 16 +++-- drivers/net/ice/ice_rxtx.c | 20 ++++-- drivers/net/ixgbe/ixgbe_rxtx.c | 7 ++- drivers/net/mlx5/mlx5_rxtx_vec.c | 2 + drivers/net/virtio/virtio_ethdev.c | 12 ++-- lib/librte_distributor/rte_distributor.c | 3 +- lib/librte_eal/arm/include/rte_vect.h | 2 + lib/librte_eal/common/eal_common_options.c | 63 +++++++++++++++++++ lib/librte_eal/common/eal_internal_cfg.h | 8 +++ lib/librte_eal/common/eal_options.h | 2 + lib/librte_eal/include/generic/rte_vect.h | 2 + lib/librte_eal/include/rte_eal.h | 32 ++++++++++ lib/librte_eal/ppc/include/rte_vect.h | 2 + lib/librte_eal/rte_eal_version.map | 4 ++ lib/librte_eal/x86/include/rte_vect.h | 2 + lib/librte_efd/rte_efd.c | 7 ++- lib/librte_member/rte_member_ht.c | 3 +- lib/librte_net/rte_net_crc.c | 8 +++ 26 files changed, 281 insertions(+), 35 deletions(-) create mode 100644 doc/guides/howto/avx512.rst -- 2.17.1
