[dpdk-dev] [PATCH 20.11 00/12] add max SIMD bitwidth to EAL

[Ciara Power]

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 (12):
  eal: add max SIMD bitwidth
  eal: add default SIMD bitwidth values
  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

 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_ethdev.c             |  3 +-
 drivers/net/virtio/virtio_ethdev.c         | 12 +++--
 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           | 31 +++++++++++
 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 +
 19 files changed, 184 insertions(+), 32 deletions(-)

-- 
2.17.1