Expand MLX5 PMD flows functionality with a match on IPV4 IHL field.
Allow testpmd to cofigure IPv4 IHL values in flow rule.

v2:
- update release notes.
- update MLX5 guide.
- remove tespmd from the series. 

Gregory Etelson (2):
  common/mlx5: query for hardware capability to offload IPv4 IHL field
  net/mlx5: add flow rule match for IPv4 IHL field

 doc/guides/nics/mlx5.rst               |  1 +
 doc/guides/rel_notes/release_21_08.rst |  3 +++
 drivers/common/mlx5/mlx5_devx_cmds.c   |  6 +++++
 drivers/common/mlx5/mlx5_devx_cmds.h   |  2 ++
 drivers/net/mlx5/mlx5_flow_dv.c        | 31 +++++++++++++++++++-------
 5 files changed, 35 insertions(+), 8 deletions(-)

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2.31.1