RDMA/mlx5: Notify data direct users via a notifier chain on unbind

Currently during unbind, data direct code calls
mlx5_ib_data_direct_unbind() directly. To make the unbind notification
generic and support multiple users, deliver an MLX5_DATA_DIRECT_UNBIND
event through a blocking_notifier chain kept per registration.

Users register a notifier_block via mlx5_data_direct_ib_reg(); mlx5_ib
embeds one in struct mlx5_ib_dev and, from its notifier callback, runs
the existing mlx5_ib_data_direct_unbind() teardown.

This patch doesn't introduce any functional changes.

Signed-off-by: Dragos Tatulea <dtatulea@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Cosmin Ratiu <cratiu@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20260930114227.139274-2-tariqt@nvidia.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>

0 files changed, 0 insertions, 0 deletions