v4.19.13 snapshot.
diff --git a/include/linux/mlx5/eswitch.h b/include/linux/mlx5/eswitch.h
new file mode 100644
index 0000000..fab5121
--- /dev/null
+++ b/include/linux/mlx5/eswitch.h
@@ -0,0 +1,60 @@
+/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
+/*
+ * Copyright (c) 2018 Mellanox Technologies. All rights reserved.
+ */
+
+#ifndef _MLX5_ESWITCH_
+#define _MLX5_ESWITCH_
+
+#include <linux/mlx5/driver.h>
+
+#define MLX5_ESWITCH_MANAGER(mdev) MLX5_CAP_GEN(mdev, eswitch_manager)
+
+enum {
+	SRIOV_NONE,
+	SRIOV_LEGACY,
+	SRIOV_OFFLOADS
+};
+
+enum {
+	REP_ETH,
+	REP_IB,
+	NUM_REP_TYPES,
+};
+
+struct mlx5_eswitch_rep;
+struct mlx5_eswitch_rep_if {
+	int		       (*load)(struct mlx5_core_dev *dev,
+				       struct mlx5_eswitch_rep *rep);
+	void		       (*unload)(struct mlx5_eswitch_rep *rep);
+	void		       *(*get_proto_dev)(struct mlx5_eswitch_rep *rep);
+	void			*priv;
+	bool		       valid;
+};
+
+struct mlx5_eswitch_rep {
+	struct mlx5_eswitch_rep_if rep_if[NUM_REP_TYPES];
+	u16		       vport;
+	u8		       hw_id[ETH_ALEN];
+	u16		       vlan;
+	u32		       vlan_refcount;
+};
+
+void mlx5_eswitch_register_vport_rep(struct mlx5_eswitch *esw,
+				     int vport_index,
+				     struct mlx5_eswitch_rep_if *rep_if,
+				     u8 rep_type);
+void mlx5_eswitch_unregister_vport_rep(struct mlx5_eswitch *esw,
+				       int vport_index,
+				       u8 rep_type);
+void *mlx5_eswitch_get_proto_dev(struct mlx5_eswitch *esw,
+				 int vport,
+				 u8 rep_type);
+struct mlx5_eswitch_rep *mlx5_eswitch_vport_rep(struct mlx5_eswitch *esw,
+						int vport);
+void *mlx5_eswitch_uplink_get_proto_dev(struct mlx5_eswitch *esw, u8 rep_type);
+u8 mlx5_eswitch_mode(struct mlx5_eswitch *esw);
+struct mlx5_flow_handle *
+mlx5_eswitch_add_send_to_vport_rule(struct mlx5_eswitch *esw,
+				    int vport, u32 sqn);
+#endif