[PATCH v6] app/testpmd: add Host Shaper command

[Spike Du]

this patch is taken out from series of "introduce per-queue available descriptor threshold and host shaper"
to simplify the review, and it's the last one for non-PMD change.
However it depends on a PMD commit for host shaper config API, should be merged after PMD patches. 

--
v6:
 - add 'static' keyword for cmdline structs
 - in AVAIL_THRESH event callback, add check to ensure it's mlx5 port

Spike Du (1):
  app/testpmd: add Host Shaper command

 app/test-pmd/testpmd.c          |  11 +++
 doc/guides/nics/mlx5.rst        |  46 +++++++++
 drivers/net/mlx5/meson.build    |   4 +
 drivers/net/mlx5/mlx5_testpmd.c | 206 ++++++++++++++++++++++++++++++++++++++++
 drivers/net/mlx5/mlx5_testpmd.h |  26 +++++
 5 files changed, 293 insertions(+)
 create mode 100644 drivers/net/mlx5/mlx5_testpmd.c
 create mode 100644 drivers/net/mlx5/mlx5_testpmd.h

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1.8.3.1