net/mlx5: Notify on trap action by blocking event
In order to allow mlx5 core driver to trigger synchronous operations to its consumers, add a blocking events handler. Add wrappers to blocking_notifier_[call_chain/chain_register/chain_unregister]. Add trap callback for action set and notify about this change. Following patches in the set add a listener for this event. Signed-off-by: Aya Levin <ayal@nvidia.com> Reviewed-by: Tariq Toukan <tariqt@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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