diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
index 19e9a77c4633..e9d68fdf68f5 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
@@ -263,6 +263,7 @@ struct mlx5_esw_offload {
 	const struct mlx5_eswitch_rep_ops *rep_ops[NUM_REP_TYPES];
 	u8 inline_mode;
 	atomic64_t num_flows;
+	u64 num_block_encap;
 	enum devlink_eswitch_encap_mode encap;
 	struct ida vport_metadata_ida;
 	unsigned int host_number; /* ECPF supports one external host */
@@ -748,6 +749,9 @@ void mlx5_eswitch_offloads_destroy_single_fdb(struct mlx5_eswitch *master_esw,
 					      struct mlx5_eswitch *slave_esw);
 int mlx5_eswitch_reload_reps(struct mlx5_eswitch *esw);
 
+bool mlx5_eswitch_block_encap(struct mlx5_core_dev *dev);
+void mlx5_eswitch_unblock_encap(struct mlx5_core_dev *dev);
+
 static inline int mlx5_eswitch_num_vfs(struct mlx5_eswitch *esw)
 {
 	if (mlx5_esw_allowed(esw))
@@ -761,6 +765,7 @@ mlx5_eswitch_get_slow_fdb(struct mlx5_eswitch *esw)
 {
 	return esw->fdb_table.offloads.slow_fdb;
 }
+
 #else  /* CONFIG_MLX5_ESWITCH */
 /* eswitch API stubs */
 static inline int  mlx5_eswitch_init(struct mlx5_core_dev *dev) { return 0; }
@@ -805,6 +810,15 @@ mlx5_eswitch_reload_reps(struct mlx5_eswitch *esw)
 {
 	return 0;
 }
+
+static inline bool mlx5_eswitch_block_encap(struct mlx5_core_dev *dev)
+{
+	return true;
+}
+
+static inline void mlx5_eswitch_unblock_encap(struct mlx5_core_dev *dev)
+{
+}
 #endif /* CONFIG_MLX5_ESWITCH */
 
 #endif /* __MLX5_ESWITCH_H__ */
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
index 48036dfddd5e..b6e2709c1371 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
@@ -3586,6 +3586,47 @@ int mlx5_devlink_eswitch_inline_mode_get(struct devlink *devlink, u8 *mode)
 	return err;
 }
 
+bool mlx5_eswitch_block_encap(struct mlx5_core_dev *dev)
+{
+	struct devlink *devlink = priv_to_devlink(dev);
+	struct mlx5_eswitch *esw;
+
+	devl_lock(devlink);
+	esw = mlx5_devlink_eswitch_get(devlink);
+	if (IS_ERR(esw)) {
+		devl_unlock(devlink);
+		/* Failure means no eswitch => not possible to change encap */
+		return true;
+	}
+
+	down_write(&esw->mode_lock);
+	if (esw->mode != MLX5_ESWITCH_LEGACY &&
+	    esw->offloads.encap != DEVLINK_ESWITCH_ENCAP_MODE_NONE) {
+		up_write(&esw->mode_lock);
+		devl_unlock(devlink);
+		return false;
+	}
+
+	esw->offloads.num_block_encap++;
+	up_write(&esw->mode_lock);
+	devl_unlock(devlink);
+	return true;
+}
+
+void mlx5_eswitch_unblock_encap(struct mlx5_core_dev *dev)
+{
+	struct devlink *devlink = priv_to_devlink(dev);
+	struct mlx5_eswitch *esw;
+
+	esw = mlx5_devlink_eswitch_get(devlink);
+	if (IS_ERR(esw))
+		return;
+
+	down_write(&esw->mode_lock);
+	esw->offloads.num_block_encap--;
+	up_write(&esw->mode_lock);
+}
+
 int mlx5_devlink_eswitch_encap_mode_set(struct devlink *devlink,
 					enum devlink_eswitch_encap_mode encap,
 					struct netlink_ext_ack *extack)
@@ -3627,6 +3668,13 @@ int mlx5_devlink_eswitch_encap_mode_set(struct devlink *devlink,
 		goto unlock;
 	}
 
+	if (esw->offloads.num_block_encap) {
+		NL_SET_ERR_MSG_MOD(extack,
+				   "Can't set encapsulation when IPsec SA and/or policies are configured");
+		err = -EOPNOTSUPP;
+		goto unlock;
+	}
+
 	esw_destroy_offloads_fdb_tables(esw);
 
 	esw->offloads.encap = encap;