net/mlx5: Emit port affinity event for multipath offloads

Under multipath offload scheme, as part of handling fib events, emit
mlx5 port affinity event on the enabled ports which will be handled by
the tc offloads code.
Signed-off-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

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

@@ -6,6 +6,7 @@
 #include "lag_mp.h"
 #include "mlx5_core.h"
 #include "eswitch.h"
+#include "lib/mlx5.h"
 
 static bool mlx5_lag_multipath_check_prereq(struct mlx5_lag *ldev)
 {
@@ -73,6 +74,16 @@ static void mlx5_lag_set_port_affinity(struct mlx5_lag *ldev, int port)
 		return;
 	}
 
+	if (tracker.netdev_state[0].tx_enabled)
+		mlx5_notifier_call_chain(ldev->pf[0].dev->priv.events,
+					 MLX5_DEV_EVENT_PORT_AFFINITY,
+					 (void *)0);
+
+	if (tracker.netdev_state[1].tx_enabled)
+		mlx5_notifier_call_chain(ldev->pf[1].dev->priv.events,
+					 MLX5_DEV_EVENT_PORT_AFFINITY,
+					 (void *)0);
+
 	mlx5_modify_lag(ldev, &tracker);
 }
 

include/linux/mlx5/driver.h

@@ -195,6 +195,7 @@ struct mlx5_rsc_debug {
 
 enum mlx5_dev_event {
 	MLX5_DEV_EVENT_SYS_ERROR = 128, /* 0 - 127 are FW events */
+	MLX5_DEV_EVENT_PORT_AFFINITY = 129,
 };
 
 enum mlx5_port_status {