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1bffcea429
We refer to a TC NIC rule that involves forwarding as "hairpin". Hairpin queues are mlx5 hardware specific implementation for hardware forwarding of such packets. Per the discussion in [1], move the hairpin queues control (number and size) from debugfs to devlink. Expose two devlink params: - hairpin_num_queues: control the number of hairpin queues - hairpin_queue_size: control the size (in packets) of the hairpin queues [1] https://lore.kernel.org/all/20230111194608.7f15b9a1@kernel.org/ Signed-off-by: Gal Pressman <gal@nvidia.com> Reviewed-by: Tariq Toukan <tariqt@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com> Link: https://lore.kernel.org/r/20230314054234.267365-12-saeed@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>