net/mlx5: DR, Free unused buddy ICM memory
Track buddy's used ICM memory, and free it if all of the buddy's memory bacame unused. Do this only for STEs. MODIFY_ACTION buddies are much smaller, so in case there is a large amount of modify_header actions, which result in large amount of MODIFY_ACTION buddies, doing this cleanup during sync will result in performance hit while not freeing significant amount of memory. Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com> Reviewed-by: Alex Vesker <valex@nvidia.com> Reviewed-by: Mark Bloch <mbloch@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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