net/mlx5: Forward QP/WorkQueues resource events

Allow forwarding QP and WQ events to mlx5_core interfaces, e.g. mlx5_ib

Use mlx5_notifier_register/unregister in qp.c in order to allow seamless
transition of qp.c to infiniband subsystem.
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

drivers/net/ethernet/mellanox/mlx5/core/events.c

@@ -34,6 +34,16 @@ static struct mlx5_nb events_nbs_ref[] = {
 	/* Events to be forwarded (as is) to mlx5 core interfaces (mlx5e/mlx5_ib) */
 	{.nb.notifier_call = forward_event,   .event_type = MLX5_EVENT_TYPE_PORT_CHANGE },
 	{.nb.notifier_call = forward_event,   .event_type = MLX5_EVENT_TYPE_GENERAL_EVENT },
+	/* QP/WQ resource events to forward */
+	{.nb.notifier_call = forward_event,   .event_type = MLX5_EVENT_TYPE_DCT_DRAINED },
+	{.nb.notifier_call = forward_event,   .event_type = MLX5_EVENT_TYPE_PATH_MIG },
+	{.nb.notifier_call = forward_event,   .event_type = MLX5_EVENT_TYPE_COMM_EST },
+	{.nb.notifier_call = forward_event,   .event_type = MLX5_EVENT_TYPE_SQ_DRAINED },
+	{.nb.notifier_call = forward_event,   .event_type = MLX5_EVENT_TYPE_SRQ_LAST_WQE },
+	{.nb.notifier_call = forward_event,   .event_type = MLX5_EVENT_TYPE_WQ_CATAS_ERROR },
+	{.nb.notifier_call = forward_event,   .event_type = MLX5_EVENT_TYPE_PATH_MIG_FAILED },
+	{.nb.notifier_call = forward_event,   .event_type = MLX5_EVENT_TYPE_WQ_INVAL_REQ_ERROR },
+	{.nb.notifier_call = forward_event,   .event_type = MLX5_EVENT_TYPE_WQ_ACCESS_ERROR },
 };
 
 struct mlx5_events {

drivers/net/ethernet/mellanox/mlx5/core/qp.c

@@ -150,7 +150,7 @@ static int rsc_event_notifier(struct notifier_block *nb,
 		return NOTIFY_DONE;
 	}
 
-	table = mlx5_nb_cof(nb, struct mlx5_qp_table, nb);
+	table = container_of(nb, struct mlx5_qp_table, nb);
 	priv  = container_of(table, struct mlx5_priv, qp_table);
 	dev   = container_of(priv, struct mlx5_core_dev, priv);
 
@@ -523,15 +523,15 @@ void mlx5_init_qp_table(struct mlx5_core_dev *dev)
 	INIT_RADIX_TREE(&table->tree, GFP_ATOMIC);
 	mlx5_qp_debugfs_init(dev);
 
-	MLX5_NB_INIT(&table->nb, rsc_event_notifier, NOTIFY_ANY);
-	mlx5_eq_notifier_register(dev, &table->nb);
+	table->nb.notifier_call = rsc_event_notifier;
+	mlx5_notifier_register(dev, &table->nb);
 }
 
 void mlx5_cleanup_qp_table(struct mlx5_core_dev *dev)
 {
 	struct mlx5_qp_table *table = &dev->priv.qp_table;
 
-	mlx5_eq_notifier_unregister(dev, &table->nb);
+	mlx5_notifier_unregister(dev, &table->nb);
 	mlx5_qp_debugfs_cleanup(dev);
 }
 

include/linux/mlx5/driver.h

@@ -456,7 +456,7 @@ struct mlx5_core_health {
 };
 
 struct mlx5_qp_table {
-	struct mlx5_nb          nb;
+	struct notifier_block   nb;
 
 	/* protect radix tree
 	 */