net/mlx5: DR, Manage definers with refcounts

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In many cases different actions will ask for the same definer format.
Instead of allocating new definer general object and running out of
definers, have an xarray of allocated definers and keep track of their
usage with refcounts: allocate a new definer only when there isn't
one with the same format already created, and destroy definer only
when its refcount runs down to zero.

Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Reviewed-by: Alex Vesker <valex@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

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Yevgeny Kliteynik 2022-08-25 15:35:59 +03:00 • committed by Saeed Mahameed

parent c72a57ad6e

commit 1339678fdd

5 changed files with 163 additions and 2 deletions

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drivers/net/ethernet/mellanox/mlx5/core/Makefile

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drivers/net/ethernet/mellanox/mlx5/core/steering/dr_definer.c

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drivers/net/ethernet/mellanox/mlx5/core/steering/dr_domain.c

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drivers/net/ethernet/mellanox/mlx5/core/steering/dr_types.h

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drivers/net/ethernet/mellanox/mlx5/core/steering/mlx5dr.h

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