net/mlx5e: Get or put meter by the index of tc police action

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Add functions to create and destroy flow meter aso object.
This object only supports the range allocation. 64 objects are
allocated at a time, and there are two meters in each object.
Usually only one meter is allocated for a flow, so bitmap is used
to manage these 128 meters.

TC police action is mapped to hardware meter. As the index is unique
for each police action, add APIs to allocate or free hardware meter by
the index. If the meter is already created, increment its refcnt,
otherwise create new one. If police action has different parameters,
update hardware meter accordingly.

Signed-off-by: Jianbo Liu <jianbol@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

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Jianbo Liu 2021-06-07 01:40:16 +00:00 • committed by Saeed Mahameed

parent 6ddac26cf7

commit b8acfd4f21

2 changed files with 226 additions and 0 deletions

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213

drivers/net/ethernet/mellanox/mlx5/core/en/tc/meter.c

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13

drivers/net/ethernet/mellanox/mlx5/core/en/tc/meter.h

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