Merge tag 'mlx5-next-vhca-id' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux

Saeed Mahameed says:

====================
mlx5-next-vhca-id

A preparation patchset for adjacent function vports.

Adjacent functions can delegate their SR-IOV VFs to sibling PFs,
allowing for more flexible and scalable management in multi-host and
ECPF-to-host scenarios. Adjacent vports can be managed by the management
PF via their unique vhca id and can't be managed by function index as the
index can conflict with the local vports/vfs.

This series provides:

- Use the cached vcha id instead of querying it every time from fw
- Query hca cap using vhca id instead of function id when FW supports it
- Add HW capabilities and required definitions for adjacent function vports

* tag 'mlx5-next-vhca-id' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux:
{rdma,net}/mlx5: export mlx5_vport_get_vhca_id
net/mlx5: E-Switch, Set/Query hca cap via vhca id
net/mlx5: E-Switch, Cache vport vhca id on first cap query
net/mlx5: mlx5_ifc, Add hardware definitions needed for adjacent vports
====================

Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Paolo Abeni <[e-mail]>

drivers/infiniband/hw/mlx5/std_types.c

···
 static int fill_vport_vhca_id(struct mlx5_core_dev *mdev, u16 vport,
 			      struct mlx5_ib_uapi_query_port *info)
 {
-	size_t out_sz = MLX5_ST_SZ_BYTES(query_hca_cap_out);
-	u32 in[MLX5_ST_SZ_DW(query_hca_cap_in)] = {};
-	void *out;
-	int err;
+	int err = mlx5_vport_get_vhca_id(mdev, vport, &info->vport_vhca_id);
 
-	out = kzalloc(out_sz, GFP_KERNEL);
-	if (!out)
-		return -ENOMEM;
-
-	MLX5_SET(query_hca_cap_in, in, opcode, MLX5_CMD_OP_QUERY_HCA_CAP);
-	MLX5_SET(query_hca_cap_in, in, other_function, true);
-	MLX5_SET(query_hca_cap_in, in, function_id, vport);
-	MLX5_SET(query_hca_cap_in, in, op_mod,
-		 MLX5_SET_HCA_CAP_OP_MOD_GENERAL_DEVICE |
-		 HCA_CAP_OPMOD_GET_CUR);
-
-	err = mlx5_cmd_exec(mdev, in, sizeof(in), out, out_sz);
 	if (err)
-		goto out;
-
-	info->vport_vhca_id = MLX5_GET(query_hca_cap_out, out,
-				       capability.cmd_hca_cap.vhca_id);
+		return err;
 
 	info->flags |= MLX5_IB_UAPI_QUERY_PORT_VPORT_VHCA_ID;
-out:
-	kfree(out);
-	return err;
+
+	return 0;
 }
 
 static int fill_multiport_info(struct mlx5_ib_dev *dev, u32 port_num,

drivers/net/ethernet/mellanox/mlx5/core/diag/reporter_vnic.c

···
 // SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
 /* Copyright (c) 2023, NVIDIA CORPORATION & AFFILIATES. */
 
+#include <linux/mlx5/vport.h>
+
 #include "reporter_vnic.h"
 #include "en_stats.h"
 #include "devlink.h"

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

···
 
 	hca_caps = MLX5_ADDR_OF(query_hca_cap_out, query_ctx, capability);
 	vport->info.roce_enabled = MLX5_GET(cmd_hca_cap, hca_caps, roce);
+	vport->vhca_id = MLX5_GET(cmd_hca_cap, hca_caps, vhca_id);
 
 	if (!MLX5_CAP_GEN_MAX(esw->dev, hca_cap_2))
 		goto out_free;
···
 out_free:
 	kfree(query_ctx);
 	return err;
+}
+
+bool mlx5_esw_vport_vhca_id(struct mlx5_eswitch *esw, u16 vportn, u16 *vhca_id)
+{
+	struct mlx5_vport *vport;
+
+	vport = mlx5_eswitch_get_vport(esw, vportn);
+	if (IS_ERR(vport) || MLX5_VPORT_INVAL_VHCA_ID(vport))
+		return false;
+
+	*vhca_id = vport->vhca_id;
+	return true;
 }
 
 static int esw_vport_setup(struct mlx5_eswitch *esw, struct mlx5_vport *vport)
···
 
 	if (!mlx5_esw_is_manager_vport(esw, vport_num) &&
 	    MLX5_CAP_GEN(esw->dev, vhca_resource_manager)) {
-		ret = mlx5_esw_vport_vhca_id_set(esw, vport_num);
+		ret = mlx5_esw_vport_vhca_id_map(esw, vport);
 		if (ret)
 			goto err_vhca_mapping;
 	}
···
 
 	if (!mlx5_esw_is_manager_vport(esw, vport_num) &&
 	    MLX5_CAP_GEN(esw->dev, vhca_resource_manager))
-		mlx5_esw_vport_vhca_id_clear(esw, vport_num);
+		mlx5_esw_vport_vhca_id_unmap(esw, vport);
 
 	if (vport->vport != MLX5_VPORT_PF &&
 	    (vport->info.ipsec_crypto_enabled || vport->info.ipsec_packet_enabled))
···
 	vport->vport = vport_num;
 	vport->index = index;
 	vport->info.link_state = MLX5_VPORT_ADMIN_STATE_AUTO;
+	vport->vhca_id = MLX5_VHCA_ID_INVALID;
 	INIT_WORK(&vport->vport_change_handler, esw_vport_change_handler);
 	err = xa_insert(&esw->vports, vport_num, vport, GFP_KERNEL);
 	if (err)

drivers/net/ethernet/mellanox/mlx5/core/eswitch.h

···
 	return mlx5_devlink_port_get(dl_port)->vport;
 }
 
+#define MLX5_VHCA_ID_INVALID (-1)
+
+#define MLX5_VPORT_INVAL_VHCA_ID(vport) \
+	((vport)->vhca_id == MLX5_VHCA_ID_INVALID)
+
 struct mlx5_vport {
 	struct mlx5_core_dev    *dev;
 	struct hlist_head       uc_list[MLX5_L2_ADDR_HASH_SIZE];
···
 	struct vport_egress     egress;
 	u32                     default_metadata;
 	u32                     metadata;
+	int                     vhca_id;
 
 	struct mlx5_vport_info  info;
 
···
 
 int mlx5_esw_sf_max_hpf_functions(struct mlx5_core_dev *dev, u16 *max_sfs, u16 *sf_base_id);
 
-int mlx5_esw_vport_vhca_id_set(struct mlx5_eswitch *esw, u16 vport_num);
-void mlx5_esw_vport_vhca_id_clear(struct mlx5_eswitch *esw, u16 vport_num);
+int mlx5_esw_vport_vhca_id_map(struct mlx5_eswitch *esw,
+			       struct mlx5_vport *vport);
+void mlx5_esw_vport_vhca_id_unmap(struct mlx5_eswitch *esw,
+				  struct mlx5_vport *vport);
 int mlx5_eswitch_vhca_id_to_vport(struct mlx5_eswitch *esw, u16 vhca_id, u16 *vport_num);
+bool mlx5_esw_vport_vhca_id(struct mlx5_eswitch *esw, u16 vportn, u16 *vhca_id);
 
 /**
  * struct mlx5_esw_event_info - Indicates eswitch mode changed/changing.
···
 {
 	return true;
 }
+
+static inline bool
+mlx5_esw_vport_vhca_id(struct mlx5_eswitch *esw, u16 vportn, u16 *vhca_id)
+{
+	return -EOPNOTSUPP;
+}
+
 #endif /* CONFIG_MLX5_ESWITCH */
 
 #endif /* __MLX5_ESWITCH_H__ */

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

···
 }
 EXPORT_SYMBOL(mlx5_eswitch_get_vport_metadata_for_match);
 
-int mlx5_esw_vport_vhca_id_set(struct mlx5_eswitch *esw, u16 vport_num)
+int mlx5_esw_vport_vhca_id_map(struct mlx5_eswitch *esw,
+			       struct mlx5_vport *vport)
 {
 	u16 *old_entry, *vhca_map_entry, vhca_id;
-	int err;
 
-	err = mlx5_vport_get_vhca_id(esw->dev, vport_num, &vhca_id);
-	if (err) {
-		esw_warn(esw->dev, "Getting vhca_id for vport failed (vport=%u,err=%d)\n",
-			 vport_num, err);
-		return err;
+	if (WARN_ONCE(MLX5_VPORT_INVAL_VHCA_ID(vport),
+		      "vport %d vhca_id is not set", vport->vport)) {
+		int err;
+
+		err = mlx5_vport_get_vhca_id(vport->dev, vport->vport,
+					     &vhca_id);
+		if (err)
+			return err;
+		vport->vhca_id = vhca_id;
 	}
 
+	vhca_id = vport->vhca_id;
 	vhca_map_entry = kmalloc(sizeof(*vhca_map_entry), GFP_KERNEL);
 	if (!vhca_map_entry)
 		return -ENOMEM;
 
-	*vhca_map_entry = vport_num;
+	*vhca_map_entry = vport->vport;
 	old_entry = xa_store(&esw->offloads.vhca_map, vhca_id, vhca_map_entry, GFP_KERNEL);
 	if (xa_is_err(old_entry)) {
 		kfree(vhca_map_entry);
···
 	return 0;
 }
 
-void mlx5_esw_vport_vhca_id_clear(struct mlx5_eswitch *esw, u16 vport_num)
+void mlx5_esw_vport_vhca_id_unmap(struct mlx5_eswitch *esw,
+				  struct mlx5_vport *vport)
 {
-	u16 *vhca_map_entry, vhca_id;
-	int err;
+	u16 *vhca_map_entry;
 
-	err = mlx5_vport_get_vhca_id(esw->dev, vport_num, &vhca_id);
-	if (err)
-		esw_warn(esw->dev, "Getting vhca_id for vport failed (vport=%hu,err=%d)\n",
-			 vport_num, err);
-
-	vhca_map_entry = xa_erase(&esw->offloads.vhca_map, vhca_id);
+	vhca_map_entry = xa_erase(&esw->offloads.vhca_map, vport->vhca_id);
 	kfree(vhca_map_entry);
 }
 

drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h

···
 #define mlx5_vport_get_other_func_general_cap(dev, vport, out)		\
 	mlx5_vport_get_other_func_cap(dev, vport, out, MLX5_CAP_GENERAL)
 
-int mlx5_vport_get_vhca_id(struct mlx5_core_dev *dev, u16 vport, u16 *vhca_id);
-
 static inline u32 mlx5_sriov_get_vf_total_msix(struct pci_dev *pdev)
 {
 	struct mlx5_core_dev *dev = pci_get_drvdata(pdev);

drivers/net/ethernet/mellanox/mlx5/core/steering/hws/cmd.c

···
 int mlx5hws_cmd_query_gvmi(struct mlx5_core_dev *mdev, bool other_function,
 			   u16 vport_number, u16 *gvmi)
 {
-	bool ec_vf_func = other_function ? mlx5_core_is_ec_vf_vport(mdev, vport_number) : false;
 	u32 in[MLX5_ST_SZ_DW(query_hca_cap_in)] = {};
 	int out_size;
 	void *out;
 	int err;
 
+	if (other_function) {
+		err = mlx5_vport_get_vhca_id(mdev, vport_number, gvmi);
+		if  (!err)
+			return 0;
+
+		mlx5_core_err(mdev, "Failed to get vport vhca id for vport %d\n",
+			      vport_number);
+		return err;
+	}
+
+	/* get vhca_id for `this` function */
 	out_size = MLX5_ST_SZ_BYTES(query_hca_cap_out);
 	out = kzalloc(out_size, GFP_KERNEL);
 	if (!out)
 		return -ENOMEM;
 
 	MLX5_SET(query_hca_cap_in, in, opcode, MLX5_CMD_OP_QUERY_HCA_CAP);
-	MLX5_SET(query_hca_cap_in, in, other_function, other_function);
-	MLX5_SET(query_hca_cap_in, in, function_id,
-		 mlx5_vport_to_func_id(mdev, vport_number, ec_vf_func));
-	MLX5_SET(query_hca_cap_in, in, ec_vf_function, ec_vf_func);
 	MLX5_SET(query_hca_cap_in, in, op_mod,
 		 MLX5_SET_HCA_CAP_OP_MOD_GENERAL_DEVICE << 1 | HCA_CAP_OPMOD_GET_CUR);
 

drivers/net/ethernet/mellanox/mlx5/core/steering/sws/dr_cmd.c

···
 /* Copyright (c) 2019 Mellanox Technologies. */
 
 #include "dr_types.h"
+#include "eswitch.h"
 
 int mlx5dr_cmd_query_esw_vport_context(struct mlx5_core_dev *mdev,
 				       bool other_vport,
···
 int mlx5dr_cmd_query_gvmi(struct mlx5_core_dev *mdev, bool other_vport,
 			  u16 vport_number, u16 *gvmi)
 {
-	bool ec_vf_func = other_vport ? mlx5_core_is_ec_vf_vport(mdev, vport_number) : false;
 	u32 in[MLX5_ST_SZ_DW(query_hca_cap_in)] = {};
 	int out_size;
 	void *out;
 	int err;
 
+	if (other_vport) {
+		err = mlx5_vport_get_vhca_id(mdev, vport_number, gvmi);
+		if  (!err)
+			return 0;
+
+		mlx5_core_err(mdev, "Failed to get vport vhca id for vport %d\n",
+			      vport_number);
+		return err;
+	}
+
+	/* get vhca_id for `this` function */
 	out_size = MLX5_ST_SZ_BYTES(query_hca_cap_out);
 	out = kzalloc(out_size, GFP_KERNEL);
 	if (!out)
 		return -ENOMEM;
 
 	MLX5_SET(query_hca_cap_in, in, opcode, MLX5_CMD_OP_QUERY_HCA_CAP);
-	MLX5_SET(query_hca_cap_in, in, other_function, other_vport);
-	MLX5_SET(query_hca_cap_in, in, function_id, mlx5_vport_to_func_id(mdev, vport_number, ec_vf_func));
-	MLX5_SET(query_hca_cap_in, in, ec_vf_function, ec_vf_func);
 	MLX5_SET(query_hca_cap_in, in, op_mod,
 		 MLX5_SET_HCA_CAP_OP_MOD_GENERAL_DEVICE << 1 |
 		 HCA_CAP_OPMOD_GET_CUR);

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

···
 #include <linux/mlx5/vport.h>
 #include <linux/mlx5/eswitch.h>
 #include "mlx5_core.h"
+#include "eswitch.h"
 #include "sf/sf.h"
 
 /* Mutex to hold while enabling or disabling RoCE */
···
 }
 EXPORT_SYMBOL_GPL(mlx5_query_nic_system_image_guid);
 
+static bool mlx5_vport_use_vhca_id_as_func_id(struct mlx5_core_dev *dev,
+					      u16 vport_num, u16 *vhca_id)
+{
+	if (!MLX5_CAP_GEN_2(dev, function_id_type_vhca_id))
+		return false;
+
+	return mlx5_esw_vport_vhca_id(dev->priv.eswitch, vport_num, vhca_id);
+}
+
 int mlx5_vport_get_other_func_cap(struct mlx5_core_dev *dev, u16 vport, void *out,
 				  u16 opmod)
 {
-	bool ec_vf_func = mlx5_core_is_ec_vf_vport(dev, vport);
 	u8 in[MLX5_ST_SZ_BYTES(query_hca_cap_in)] = {};
+	u16 vhca_id = 0, function_id = 0;
+	bool ec_vf_func = false;
+
+	/* if this vport is referring to a vport on the ec PF (embedded cpu )
+	 * let the FW know which domain we are querying since vport numbers or
+	 * function_ids are not unique across the different PF domains,
+	 * unless we use vhca_id as the function_id below.
+	 */
+	ec_vf_func = mlx5_core_is_ec_vf_vport(dev, vport);
+	function_id = mlx5_vport_to_func_id(dev, vport, ec_vf_func);
+
+	if (mlx5_vport_use_vhca_id_as_func_id(dev, vport, &vhca_id)) {
+		MLX5_SET(query_hca_cap_in, in, function_id_type, 1);
+		function_id = vhca_id;
+		ec_vf_func = false;
+		mlx5_core_dbg(dev, "%s using vhca_id as function_id for vport %d vhca_id 0x%x\n",
+			      __func__, vport, vhca_id);
+	}
 
 	opmod = (opmod << 1) | (HCA_CAP_OPMOD_GET_MAX & 0x01);
 	MLX5_SET(query_hca_cap_in, in, opcode, MLX5_CMD_OP_QUERY_HCA_CAP);
 	MLX5_SET(query_hca_cap_in, in, op_mod, opmod);
-	MLX5_SET(query_hca_cap_in, in, function_id, mlx5_vport_to_func_id(dev, vport, ec_vf_func));
 	MLX5_SET(query_hca_cap_in, in, other_function, true);
 	MLX5_SET(query_hca_cap_in, in, ec_vf_function, ec_vf_func);
+	MLX5_SET(query_hca_cap_in, in, function_id, function_id);
 	return mlx5_cmd_exec_inout(dev, query_hca_cap, in, out);
 }
 EXPORT_SYMBOL_GPL(mlx5_vport_get_other_func_cap);
···
 	void *hca_caps;
 	int err;
 
-	*vhca_id = 0;
+	/* try get vhca_id via eswitch */
+	if (mlx5_esw_vport_vhca_id(dev->priv.eswitch, vport, vhca_id))
+		return 0;
 
 	query_ctx = kzalloc(query_out_sz, GFP_KERNEL);
 	if (!query_ctx)
···
 	kfree(query_ctx);
 	return err;
 }
+EXPORT_SYMBOL_GPL(mlx5_vport_get_vhca_id);
 
 int mlx5_vport_set_other_func_cap(struct mlx5_core_dev *dev, const void *hca_cap,
 				  u16 vport, u16 opmod)
 {
-	bool ec_vf_func = mlx5_core_is_ec_vf_vport(dev, vport);
 	int set_sz = MLX5_ST_SZ_BYTES(set_hca_cap_in);
+	u16 vhca_id = 0, function_id = 0;
+	bool ec_vf_func = false;
 	void *set_hca_cap;
 	void *set_ctx;
 	int ret;
···
 	if (!set_ctx)
 		return -ENOMEM;
 
+	/* if this vport is referring to a vport on the ec PF (embedded cpu )
+	 * let the FW know which domain we are querying since vport numbers or
+	 * function_ids are not unique across the different PF domains,
+	 * unless we use vhca_id as the function_id below.
+	 */
+	ec_vf_func = mlx5_core_is_ec_vf_vport(dev, vport);
+	function_id = mlx5_vport_to_func_id(dev, vport, ec_vf_func);
+
+	if (mlx5_vport_use_vhca_id_as_func_id(dev, vport, &vhca_id)) {
+		MLX5_SET(set_hca_cap_in, set_ctx, function_id_type, 1);
+		function_id = vhca_id;
+		ec_vf_func = false;
+		mlx5_core_dbg(dev, "%s using vhca_id as function_id for vport %d vhca_id 0x%x\n",
+			      __func__, vport, vhca_id);
+	}
+
 	MLX5_SET(set_hca_cap_in, set_ctx, opcode, MLX5_CMD_OP_SET_HCA_CAP);
 	MLX5_SET(set_hca_cap_in, set_ctx, op_mod, opmod << 1);
 	set_hca_cap = MLX5_ADDR_OF(set_hca_cap_in, set_ctx, capability);
 	memcpy(set_hca_cap, hca_cap, MLX5_ST_SZ_BYTES(cmd_hca_cap));
-	MLX5_SET(set_hca_cap_in, set_ctx, function_id,
-		 mlx5_vport_to_func_id(dev, vport, ec_vf_func));
 	MLX5_SET(set_hca_cap_in, set_ctx, other_function, true);
 	MLX5_SET(set_hca_cap_in, set_ctx, ec_vf_function, ec_vf_func);
+	MLX5_SET(set_hca_cap_in, set_ctx, function_id, function_id);
 	ret = mlx5_cmd_exec_in(dev, set_hca_cap, set_ctx);
 
 	kfree(set_ctx);

include/linux/mlx5/mlx5_ifc.h

···
 	MLX5_CMD_OP_QUERY_XRQ_ERROR_PARAMS        = 0x727,
 	MLX5_CMD_OP_RELEASE_XRQ_ERROR             = 0x729,
 	MLX5_CMD_OP_MODIFY_XRQ                    = 0x72a,
+	MLX5_CMD_OPCODE_QUERY_DELEGATED_VHCA      = 0x732,
+	MLX5_CMD_OPCODE_CREATE_ESW_VPORT          = 0x733,
+	MLX5_CMD_OPCODE_DESTROY_ESW_VPORT         = 0x734,
 	MLX5_CMD_OP_QUERY_ESW_FUNCTIONS           = 0x740,
 	MLX5_CMD_OP_QUERY_VPORT_STATE             = 0x750,
 	MLX5_CMD_OP_MODIFY_VPORT_STATE            = 0x751,
···
 
 	u8	   reserved_at_440[0x8];
 	u8	   max_num_eqs_24b[0x18];
-	u8	   reserved_at_460[0x3a0];
+
+	u8         reserved_at_460[0x160];
+
+	u8         query_adjacent_functions_id[0x1];
+	u8         ingress_egress_esw_vport_connect[0x1];
+	u8         function_id_type_vhca_id[0x1];
+	u8         reserved_at_5c3[0xd];
+	u8         delegate_vhca_management_profiles[0x10];
+
+	u8         delegated_vhca_max[0x10];
+	u8         delegate_vhca_max[0x10];
+
+	u8         reserved_at_600[0x200];
 };
 
 enum mlx5_ifc_flow_destination_type {
···
 
 	u8         other_function[0x1];
 	u8         ec_vf_function[0x1];
-	u8         reserved_at_42[0xe];
+	u8         reserved_at_42[0x1];
+	u8         function_id_type[0x1];
+	u8         reserved_at_44[0xc];
 	u8         function_id[0x10];
 
 	u8         reserved_at_60[0x20];
···
 
 	u8         other_function[0x1];
 	u8         ec_vf_function[0x1];
-	u8         reserved_at_42[0xe];
+	u8         reserved_at_42[0x1];
+	u8         function_id_type[0x1];
+	u8         reserved_at_44[0xc];
 	u8         function_id[0x10];
 
 	u8         reserved_at_60[0x20];
···
 	u8         reserved_at_60[0x20];
 };
 
+struct mlx5_ifc_destroy_esw_vport_out_bits {
+	u8         status[0x8];
+	u8         reserved_at_8[0x18];
+
+	u8         syndrome[0x20];
+
+	u8         reserved_at_40[0x20];
+};
+
+struct mlx5_ifc_destroy_esw_vport_in_bits {
+	u8         opcode[0x10];
+	u8         uid[0x10];
+
+	u8         reserved_at_20[0x10];
+	u8         op_mod[0x10];
+
+	u8         reserved_at_40[0x10];
+	u8         vport_num[0x10];
+
+	u8         reserved_at_60[0x20];
+};
+
 struct mlx5_ifc_modify_esw_vport_context_out_bits {
 	u8         status[0x8];
 	u8         reserved_at_8[0x18];
···
 	u8         reserved_at_40[0x40];
 };
 
+struct mlx5_ifc_function_vhca_rid_info_reg_bits {
+	u8         host_number[0x8];
+	u8         host_pci_device_function[0x8];
+	u8         host_pci_bus[0x8];
+	u8         reserved_at_18[0x3];
+	u8         pci_bus_assigned[0x1];
+	u8         function_type[0x4];
+
+	u8         parent_pci_device_function[0x8];
+	u8         parent_pci_bus[0x8];
+	u8         vhca_id[0x10];
+
+	u8         reserved_at_40[0x10];
+	u8         function_id[0x10];
+
+	u8         reserved_at_60[0x20];
+};
+
+struct mlx5_ifc_delegated_function_vhca_rid_info_bits {
+	struct mlx5_ifc_function_vhca_rid_info_reg_bits function_vhca_rid_info;
+
+	u8         reserved_at_80[0x18];
+	u8         manage_profile[0x8];
+
+	u8         reserved_at_a0[0x60];
+};
+
+struct mlx5_ifc_query_delegated_vhca_out_bits {
+	u8         status[0x8];
+	u8         reserved_at_8[0x18];
+
+	u8         syndrome[0x20];
+
+	u8         reserved_at_40[0x20];
+
+	u8         reserved_at_60[0x10];
+	u8         functions_count[0x10];
+
+	u8         reserved_at_80[0x80];
+
+	struct mlx5_ifc_delegated_function_vhca_rid_info_bits
+			delegated_function_vhca_rid_info[];
+};
+
+struct mlx5_ifc_query_delegated_vhca_in_bits {
+	u8         opcode[0x10];
+	u8         uid[0x10];
+
+	u8         reserved_at_20[0x10];
+	u8         op_mod[0x10];
+
+	u8         reserved_at_40[0x40];
+};
+
+struct mlx5_ifc_create_esw_vport_out_bits {
+	u8         status[0x8];
+	u8         reserved_at_8[0x18];
+
+	u8         syndrome[0x20];
+
+	u8         reserved_at_40[0x20];
+
+	u8         reserved_at_60[0x10];
+	u8         vport_num[0x10];
+};
+
+struct mlx5_ifc_create_esw_vport_in_bits {
+	u8         opcode[0x10];
+	u8         reserved_at_10[0x10];
+
+	u8         reserved_at_20[0x10];
+	u8         op_mod[0x10];
+
+	u8         reserved_at_40[0x10];
+	u8         managed_vhca_id[0x10];
+
+	u8         reserved_at_60[0x20];
+};
+
 struct mlx5_ifc_qp_2rst_out_bits {
 	u8         status[0x8];
 	u8         reserved_at_8[0x18];
···
 	u8         reserved_at_41[0xf];
 	u8         vport_number[0x10];
 
-	u8         reserved_at_60[0x18];
+	u8         reserved_at_60[0x10];
+	u8         ingress_connect[0x1];
+	u8         egress_connect[0x1];
+	u8         ingress_connect_valid[0x1];
+	u8         egress_connect_valid[0x1];
+	u8         reserved_at_74[0x4];
 	u8         admin_state[0x4];
 	u8         reserved_at_7c[0x4];
 };

include/linux/mlx5/vport.h

···
 u64 mlx5_query_nic_system_image_guid(struct mlx5_core_dev *mdev);
 int mlx5_vport_get_other_func_cap(struct mlx5_core_dev *dev, u16 vport, void *out,
 				  u16 opmod);
+int mlx5_vport_get_vhca_id(struct mlx5_core_dev *dev, u16 vport, u16 *vhca_id);
+
 #endif /* __MLX5_VPORT_H__ */