diff --git a/drivers/net/ethernet/mellanox/mlx5/core/Makefile b/drivers/net/ethernet/mellanox/mlx5/core/Makefile
index 206223ce63a8..a65ab661375a 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/Makefile
+++ b/drivers/net/ethernet/mellanox/mlx5/core/Makefile
@@ -69,7 +69,7 @@ mlx5_core-$(CONFIG_MLX5_TC_SAMPLE)   += en/tc/sample.o
 # Core extra
 #
 mlx5_core-$(CONFIG_MLX5_ESWITCH)   += eswitch.o eswitch_offloads.o eswitch_offloads_termtbl.o \
-				      ecpf.o rdma.o esw/legacy.o \
+				      ecpf.o rdma.o esw/legacy.o esw/adj_vport.o \
 				      esw/devlink_port.o esw/vporttbl.o esw/qos.o esw/ipsec.o
 
 mlx5_core-$(CONFIG_MLX5_ESWITCH)   += esw/acl/helper.o \
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/esw/adj_vport.c b/drivers/net/ethernet/mellanox/mlx5/core/esw/adj_vport.c
new file mode 100644
index 000000000000..0091ba697bae
--- /dev/null
+++ b/drivers/net/ethernet/mellanox/mlx5/core/esw/adj_vport.c
@@ -0,0 +1,209 @@
+// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
+// Copyright (c) 2025, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+
+#include "fs_core.h"
+#include "eswitch.h"
+
+enum {
+	MLX5_ADJ_VPORT_DISCONNECT = 0x0,
+	MLX5_ADJ_VPORT_CONNECT = 0x1,
+};
+
+static int mlx5_esw_adj_vport_modify(struct mlx5_core_dev *dev,
+				     u16 vport, bool connect)
+{
+	u32 in[MLX5_ST_SZ_DW(modify_vport_state_in)] = {};
+
+	MLX5_SET(modify_vport_state_in, in, opcode,
+		 MLX5_CMD_OP_MODIFY_VPORT_STATE);
+	MLX5_SET(modify_vport_state_in, in, op_mod,
+		 MLX5_VPORT_STATE_OP_MOD_ESW_VPORT);
+	MLX5_SET(modify_vport_state_in, in, other_vport, 1);
+	MLX5_SET(modify_vport_state_in, in, vport_number, vport);
+	MLX5_SET(modify_vport_state_in, in, ingress_connect_valid, 1);
+	MLX5_SET(modify_vport_state_in, in, egress_connect_valid, 1);
+	MLX5_SET(modify_vport_state_in, in, ingress_connect, connect);
+	MLX5_SET(modify_vport_state_in, in, egress_connect, connect);
+
+	return mlx5_cmd_exec_in(dev, modify_vport_state, in);
+}
+
+static void mlx5_esw_destroy_esw_vport(struct mlx5_core_dev *dev, u16 vport)
+{
+	u32 in[MLX5_ST_SZ_DW(destroy_esw_vport_in)] = {};
+
+	MLX5_SET(destroy_esw_vport_in, in, opcode,
+		 MLX5_CMD_OPCODE_DESTROY_ESW_VPORT);
+	MLX5_SET(destroy_esw_vport_in, in, vport_num, vport);
+
+	mlx5_cmd_exec_in(dev, destroy_esw_vport, in);
+}
+
+static int mlx5_esw_create_esw_vport(struct mlx5_core_dev *dev, u16 vhca_id,
+				     u16 *vport_num)
+{
+	u32 out[MLX5_ST_SZ_DW(create_esw_vport_out)] = {};
+	u32 in[MLX5_ST_SZ_DW(create_esw_vport_in)] = {};
+	int err;
+
+	MLX5_SET(create_esw_vport_in, in, opcode,
+		 MLX5_CMD_OPCODE_CREATE_ESW_VPORT);
+	MLX5_SET(create_esw_vport_in, in, managed_vhca_id, vhca_id);
+
+	err = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
+	if (!err)
+		*vport_num = MLX5_GET(create_esw_vport_out, out, vport_num);
+
+	return err;
+}
+
+static int mlx5_esw_adj_vport_create(struct mlx5_eswitch *esw, u16 vhca_id,
+				     const void *rid_info_reg)
+{
+	struct mlx5_vport *vport;
+	u16 vport_num;
+	int err;
+
+	err = mlx5_esw_create_esw_vport(esw->dev, vhca_id, &vport_num);
+	if (err) {
+		esw_warn(esw->dev,
+			 "Failed to create adjacent vport for vhca_id %d, err %d\n",
+			 vhca_id, err);
+		return err;
+	}
+
+	esw_debug(esw->dev, "Created adjacent vport[%d] %d for vhca_id 0x%x\n",
+		  esw->last_vport_idx, vport_num, vhca_id);
+
+	err = mlx5_esw_vport_alloc(esw, esw->last_vport_idx++, vport_num);
+	if (err)
+		goto destroy_esw_vport;
+
+	xa_set_mark(&esw->vports, vport_num, MLX5_ESW_VPT_VF);
+	vport = mlx5_eswitch_get_vport(esw, vport_num);
+	vport->adjacent = true;
+	vport->vhca_id = vhca_id;
+
+	vport->adj_info.parent_pci_devfn =
+		MLX5_GET(function_vhca_rid_info_reg, rid_info_reg,
+			 parent_pci_device_function);
+	vport->adj_info.function_id =
+		MLX5_GET(function_vhca_rid_info_reg, rid_info_reg, function_id);
+
+	mlx5_fs_vport_egress_acl_ns_add(esw->dev->priv.steering, vport->index);
+	mlx5_fs_vport_ingress_acl_ns_add(esw->dev->priv.steering, vport->index);
+	err = mlx5_esw_offloads_rep_add(esw, vport);
+	if (err)
+		goto acl_ns_remove;
+
+	mlx5_esw_adj_vport_modify(esw->dev, vport_num, MLX5_ADJ_VPORT_CONNECT);
+	return 0;
+
+acl_ns_remove:
+	mlx5_fs_vport_ingress_acl_ns_remove(esw->dev->priv.steering,
+					    vport->index);
+	mlx5_fs_vport_egress_acl_ns_remove(esw->dev->priv.steering,
+					   vport->index);
+	mlx5_esw_vport_free(esw, vport);
+destroy_esw_vport:
+	mlx5_esw_destroy_esw_vport(esw->dev, vport_num);
+	return err;
+}
+
+static void mlx5_esw_adj_vport_destroy(struct mlx5_eswitch *esw,
+				       struct mlx5_vport *vport)
+{
+	u16 vport_num = vport->vport;
+
+	esw_debug(esw->dev, "Destroying adjacent vport %d for vhca_id 0x%x\n",
+		  vport_num, vport->vhca_id);
+	mlx5_esw_adj_vport_modify(esw->dev, vport_num,
+				  MLX5_ADJ_VPORT_DISCONNECT);
+	mlx5_esw_offloads_rep_remove(esw, vport);
+	mlx5_fs_vport_egress_acl_ns_remove(esw->dev->priv.steering,
+					   vport->index);
+	mlx5_fs_vport_ingress_acl_ns_remove(esw->dev->priv.steering,
+					    vport->index);
+	mlx5_esw_vport_free(esw, vport);
+	/* Reset the vport index back so new adj vports can use this index.
+	 * When vport count can incrementally change, this needs to be modified.
+	 */
+	esw->last_vport_idx--;
+	mlx5_esw_destroy_esw_vport(esw->dev, vport_num);
+}
+
+void mlx5_esw_adjacent_vhcas_cleanup(struct mlx5_eswitch *esw)
+{
+	struct mlx5_vport *vport;
+	unsigned long i;
+
+	if (!MLX5_CAP_GEN_2(esw->dev, delegated_vhca_max))
+		return;
+
+	mlx5_esw_for_each_vf_vport(esw, i, vport, U16_MAX) {
+		if (!vport->adjacent)
+			continue;
+		mlx5_esw_adj_vport_destroy(esw, vport);
+	}
+}
+
+void mlx5_esw_adjacent_vhcas_setup(struct mlx5_eswitch *esw)
+{
+	u32 delegated_vhca_max = MLX5_CAP_GEN_2(esw->dev, delegated_vhca_max);
+	u32 in[MLX5_ST_SZ_DW(query_delegated_vhca_in)] = {};
+	int outlen, err, i = 0;
+	u8 *out;
+	u32 count;
+
+	if (!delegated_vhca_max)
+		return;
+
+	outlen = MLX5_ST_SZ_BYTES(query_delegated_vhca_out) +
+		 delegated_vhca_max *
+		 MLX5_ST_SZ_BYTES(delegated_function_vhca_rid_info);
+
+	esw_debug(esw->dev, "delegated_vhca_max=%d\n", delegated_vhca_max);
+
+	out = kvzalloc(outlen, GFP_KERNEL);
+	if (!out)
+		return;
+
+	MLX5_SET(query_delegated_vhca_in, in, opcode,
+		 MLX5_CMD_OPCODE_QUERY_DELEGATED_VHCA);
+
+	err = mlx5_cmd_exec(esw->dev, in, sizeof(in), out, outlen);
+	if (err) {
+		kvfree(out);
+		esw_warn(esw->dev, "Failed to query delegated vhca, err %d\n",
+			 err);
+		return;
+	}
+
+	count = MLX5_GET(query_delegated_vhca_out, out, functions_count);
+	esw_debug(esw->dev, "Delegated vhca functions count %d\n", count);
+
+	for (i = 0; i < count; i++) {
+		const void *rid_info, *rid_info_reg;
+		u16 vhca_id;
+
+		rid_info = MLX5_ADDR_OF(query_delegated_vhca_out, out,
+					delegated_function_vhca_rid_info[i]);
+
+		rid_info_reg = MLX5_ADDR_OF(delegated_function_vhca_rid_info,
+					    rid_info, function_vhca_rid_info);
+
+		vhca_id = MLX5_GET(function_vhca_rid_info_reg, rid_info_reg,
+				   vhca_id);
+		esw_debug(esw->dev, "Delegating vhca_id 0x%x\n", vhca_id);
+
+		err = mlx5_esw_adj_vport_create(esw, vhca_id, rid_info_reg);
+		if (err) {
+			esw_warn(esw->dev,
+				 "Failed to init adjacent vhca 0x%x, err %d\n",
+				 vhca_id, err);
+			break;
+		}
+	}
+
+	kvfree(out);
+}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/esw/devlink_port.c b/drivers/net/ethernet/mellanox/mlx5/core/esw/devlink_port.c
index c33accadae0f..cf88a106d80d 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/esw/devlink_port.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/esw/devlink_port.c
@@ -27,6 +27,7 @@ static void mlx5_esw_offloads_pf_vf_devlink_port_attrs_set(struct mlx5_eswitch *
 {
 	struct mlx5_core_dev *dev = esw->dev;
 	struct netdev_phys_item_id ppid = {};
+	struct mlx5_vport *vport;
 	u32 controller_num = 0;
 	bool external;
 	u16 pfnum;
@@ -42,10 +43,18 @@ static void mlx5_esw_offloads_pf_vf_devlink_port_attrs_set(struct mlx5_eswitch *
 		dl_port->attrs.switch_id.id_len = ppid.id_len;
 		devlink_port_attrs_pci_pf_set(dl_port, controller_num, pfnum, external);
 	} else if (mlx5_eswitch_is_vf_vport(esw, vport_num)) {
+		u16 func_id = vport_num - 1;
+
+		vport = mlx5_eswitch_get_vport(esw, vport_num);
 		memcpy(dl_port->attrs.switch_id.id, ppid.id, ppid.id_len);
 		dl_port->attrs.switch_id.id_len = ppid.id_len;
+		if (vport->adjacent) {
+			func_id = vport->adj_info.function_id;
+			pfnum = vport->adj_info.parent_pci_devfn;
+		}
+
 		devlink_port_attrs_pci_vf_set(dl_port, controller_num, pfnum,
-					      vport_num - 1, external);
+					      func_id, external);
 	}  else if (mlx5_core_is_ec_vf_vport(esw->dev, vport_num)) {
 		u16 base_vport = mlx5_core_ec_vf_vport_base(dev);
 
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
index 9fe5a45124fd..10eca910a2db 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
@@ -1217,7 +1217,8 @@ void mlx5_eswitch_unload_vf_vports(struct mlx5_eswitch *esw, u16 num_vfs)
 	unsigned long i;
 
 	mlx5_esw_for_each_vf_vport(esw, i, vport, num_vfs) {
-		if (!vport->enabled)
+		/* Adjacent VFs are unloaded separately */
+		if (!vport->enabled || vport->adjacent)
 			continue;
 		mlx5_eswitch_unload_pf_vf_vport(esw, vport->vport);
 	}
@@ -1236,6 +1237,42 @@ static void mlx5_eswitch_unload_ec_vf_vports(struct mlx5_eswitch *esw,
 	}
 }
 
+static void mlx5_eswitch_unload_adj_vf_vports(struct mlx5_eswitch *esw)
+{
+	struct mlx5_vport *vport;
+	unsigned long i;
+
+	mlx5_esw_for_each_vf_vport(esw, i, vport, U16_MAX) {
+		if (!vport->enabled || !vport->adjacent)
+			continue;
+		mlx5_eswitch_unload_pf_vf_vport(esw, vport->vport);
+	}
+}
+
+static int
+mlx5_eswitch_load_adj_vf_vports(struct mlx5_eswitch *esw,
+				enum mlx5_eswitch_vport_event enabled_events)
+{
+	struct mlx5_vport *vport;
+	unsigned long i;
+	int err;
+
+	mlx5_esw_for_each_vf_vport(esw, i, vport, U16_MAX) {
+		if (!vport->adjacent)
+			continue;
+		err = mlx5_eswitch_load_pf_vf_vport(esw, vport->vport,
+						    enabled_events);
+		if (err)
+			goto unload_adj_vf_vport;
+	}
+
+	return 0;
+
+unload_adj_vf_vport:
+	mlx5_eswitch_unload_adj_vf_vports(esw);
+	return err;
+}
+
 int mlx5_eswitch_load_vf_vports(struct mlx5_eswitch *esw, u16 num_vfs,
 				enum mlx5_eswitch_vport_event enabled_events)
 {
@@ -1345,8 +1382,16 @@ mlx5_eswitch_enable_pf_vf_vports(struct mlx5_eswitch *esw,
 					  enabled_events);
 	if (ret)
 		goto vf_err;
+
+	/* Enable adjacent VF vports */
+	ret = mlx5_eswitch_load_adj_vf_vports(esw, enabled_events);
+	if (ret)
+		goto unload_vf_vports;
+
 	return 0;
 
+unload_vf_vports:
+	mlx5_eswitch_unload_vf_vports(esw, esw->esw_funcs.num_vfs);
 vf_err:
 	if (mlx5_core_ec_sriov_enabled(esw->dev))
 		mlx5_eswitch_unload_ec_vf_vports(esw, esw->esw_funcs.num_ec_vfs);
@@ -1367,6 +1412,8 @@ mlx5_eswitch_enable_pf_vf_vports(struct mlx5_eswitch *esw,
  */
 void mlx5_eswitch_disable_pf_vf_vports(struct mlx5_eswitch *esw)
 {
+	mlx5_eswitch_unload_adj_vf_vports(esw);
+
 	mlx5_eswitch_unload_vf_vports(esw, esw->esw_funcs.num_vfs);
 
 	if (mlx5_core_ec_sriov_enabled(esw->dev))
@@ -1439,19 +1486,76 @@ static void mlx5_esw_mode_change_notify(struct mlx5_eswitch *esw, u16 mode)
 	blocking_notifier_call_chain(&esw->n_head, 0, &info);
 }
 
+static int mlx5_esw_egress_acls_init(struct mlx5_core_dev *dev)
+{
+	struct mlx5_flow_steering *steering = dev->priv.steering;
+	int total_vports = mlx5_eswitch_get_total_vports(dev);
+	int err;
+	int i;
+
+	for (i = 0; i < total_vports; i++) {
+		err = mlx5_fs_vport_egress_acl_ns_add(steering, i);
+		if (err)
+			goto acl_ns_remove;
+	}
+	return 0;
+
+acl_ns_remove:
+	while (i--)
+		mlx5_fs_vport_egress_acl_ns_remove(steering, i);
+	return err;
+}
+
+static void mlx5_esw_egress_acls_cleanup(struct mlx5_core_dev *dev)
+{
+	struct mlx5_flow_steering *steering = dev->priv.steering;
+	int total_vports = mlx5_eswitch_get_total_vports(dev);
+	int i;
+
+	for (i = total_vports - 1; i >= 0; i--)
+		mlx5_fs_vport_egress_acl_ns_remove(steering, i);
+}
+
+static int mlx5_esw_ingress_acls_init(struct mlx5_core_dev *dev)
+{
+	struct mlx5_flow_steering *steering = dev->priv.steering;
+	int total_vports = mlx5_eswitch_get_total_vports(dev);
+	int err;
+	int i;
+
+	for (i = 0; i < total_vports; i++) {
+		err = mlx5_fs_vport_ingress_acl_ns_add(steering, i);
+		if (err)
+			goto acl_ns_remove;
+	}
+	return 0;
+
+acl_ns_remove:
+	while (i--)
+		mlx5_fs_vport_ingress_acl_ns_remove(steering, i);
+	return err;
+}
+
+static void mlx5_esw_ingress_acls_cleanup(struct mlx5_core_dev *dev)
+{
+	struct mlx5_flow_steering *steering = dev->priv.steering;
+	int total_vports = mlx5_eswitch_get_total_vports(dev);
+	int i;
+
+	for (i = total_vports - 1; i >= 0; i--)
+		mlx5_fs_vport_ingress_acl_ns_remove(steering, i);
+}
+
 static int mlx5_esw_acls_ns_init(struct mlx5_eswitch *esw)
 {
 	struct mlx5_core_dev *dev = esw->dev;
-	int total_vports;
 	int err;
 
 	if (esw->flags & MLX5_ESWITCH_VPORT_ACL_NS_CREATED)
 		return 0;
 
-	total_vports = mlx5_eswitch_get_total_vports(dev);
-
 	if (MLX5_CAP_ESW_EGRESS_ACL(dev, ft_support)) {
-		err = mlx5_fs_egress_acls_init(dev, total_vports);
+		err = mlx5_esw_egress_acls_init(dev);
 		if (err)
 			return err;
 	} else {
@@ -1459,7 +1563,7 @@ static int mlx5_esw_acls_ns_init(struct mlx5_eswitch *esw)
 	}
 
 	if (MLX5_CAP_ESW_INGRESS_ACL(dev, ft_support)) {
-		err = mlx5_fs_ingress_acls_init(dev, total_vports);
+		err = mlx5_esw_ingress_acls_init(dev);
 		if (err)
 			goto err;
 	} else {
@@ -1470,7 +1574,7 @@ static int mlx5_esw_acls_ns_init(struct mlx5_eswitch *esw)
 
 err:
 	if (MLX5_CAP_ESW_EGRESS_ACL(dev, ft_support))
-		mlx5_fs_egress_acls_cleanup(dev);
+		mlx5_esw_egress_acls_cleanup(dev);
 	return err;
 }
 
@@ -1480,9 +1584,9 @@ static void mlx5_esw_acls_ns_cleanup(struct mlx5_eswitch *esw)
 
 	esw->flags &= ~MLX5_ESWITCH_VPORT_ACL_NS_CREATED;
 	if (MLX5_CAP_ESW_INGRESS_ACL(dev, ft_support))
-		mlx5_fs_ingress_acls_cleanup(dev);
+		mlx5_esw_ingress_acls_cleanup(dev);
 	if (MLX5_CAP_ESW_EGRESS_ACL(dev, ft_support))
-		mlx5_fs_egress_acls_cleanup(dev);
+		mlx5_esw_egress_acls_cleanup(dev);
 }
 
 /**
@@ -1734,8 +1838,7 @@ int mlx5_esw_sf_max_hpf_functions(struct mlx5_core_dev *dev, u16 *max_sfs, u16 *
 	return err;
 }
 
-static int mlx5_esw_vport_alloc(struct mlx5_eswitch *esw,
-				int index, u16 vport_num)
+int mlx5_esw_vport_alloc(struct mlx5_eswitch *esw, int index, u16 vport_num)
 {
 	struct mlx5_vport *vport;
 	int err;
@@ -1762,8 +1865,9 @@ static int mlx5_esw_vport_alloc(struct mlx5_eswitch *esw,
 	return err;
 }
 
-static void mlx5_esw_vport_free(struct mlx5_eswitch *esw, struct mlx5_vport *vport)
+void mlx5_esw_vport_free(struct mlx5_eswitch *esw, struct mlx5_vport *vport)
 {
+	esw->total_vports--;
 	xa_erase(&esw->vports, vport->vport);
 	kfree(vport);
 }
@@ -1847,6 +1951,9 @@ static int mlx5_esw_vports_init(struct mlx5_eswitch *esw)
 	err = mlx5_esw_vport_alloc(esw, idx, MLX5_VPORT_UPLINK);
 	if (err)
 		goto err;
+
+	/* Adjacent vports or other dynamically create vports will use this */
+	esw->last_vport_idx = ++idx;
 	return 0;
 
 err:
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
index cfd6b1b8c6f4..4fe285ce32aa 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
@@ -216,6 +216,12 @@ struct mlx5_vport {
 	u32                     metadata;
 	int                     vhca_id;
 
+	bool adjacent; /* delegated vhca from adjacent function */
+	struct {
+		u16 parent_pci_devfn; /* Adjacent parent PCI device function */
+		u16 function_id; /* Function ID of the delegated VPort */
+	} adj_info;
+
 	struct mlx5_vport_info  info;
 
 	/* Protected with the E-Switch qos domain lock. The Vport QoS can
@@ -384,6 +390,7 @@ struct mlx5_eswitch {
 
 	struct mlx5_esw_bridge_offloads *br_offloads;
 	struct mlx5_esw_offload offloads;
+	u32 last_vport_idx;
 	int                     mode;
 	u16                     manager_vport;
 	u16                     first_host_vport;
@@ -417,6 +424,8 @@ int mlx5_esw_qos_modify_vport_rate(struct mlx5_eswitch *esw, u16 vport_num, u32
 /* E-Switch API */
 int mlx5_eswitch_init(struct mlx5_core_dev *dev);
 void mlx5_eswitch_cleanup(struct mlx5_eswitch *esw);
+int mlx5_esw_vport_alloc(struct mlx5_eswitch *esw, int index, u16 vport_num);
+void mlx5_esw_vport_free(struct mlx5_eswitch *esw, struct mlx5_vport *vport);
 
 #define MLX5_ESWITCH_IGNORE_NUM_VFS (-1)
 int mlx5_eswitch_enable_locked(struct mlx5_eswitch *esw, int num_vfs);
@@ -622,6 +631,9 @@ bool mlx5_esw_multipath_prereq(struct mlx5_core_dev *dev0,
 
 const u32 *mlx5_esw_query_functions(struct mlx5_core_dev *dev);
 
+void mlx5_esw_adjacent_vhcas_setup(struct mlx5_eswitch *esw);
+void mlx5_esw_adjacent_vhcas_cleanup(struct mlx5_eswitch *esw);
+
 #define MLX5_DEBUG_ESWITCH_MASK BIT(3)
 
 #define esw_info(__dev, format, ...)			\
@@ -831,6 +843,11 @@ void mlx5_esw_vport_vhca_id_unmap(struct mlx5_eswitch *esw,
 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);
 
+void mlx5_esw_offloads_rep_remove(struct mlx5_eswitch *esw,
+				  const struct mlx5_vport *vport);
+int mlx5_esw_offloads_rep_add(struct mlx5_eswitch *esw,
+			      const struct mlx5_vport *vport);
+
 /**
  * struct mlx5_esw_event_info - Indicates eswitch mode changed/changing.
  *
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
index cdba7bc448ee..d57f86d297ab 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
@@ -2378,7 +2378,20 @@ static int esw_offloads_start(struct mlx5_eswitch *esw,
 	return 0;
 }
 
-static int mlx5_esw_offloads_rep_init(struct mlx5_eswitch *esw, const struct mlx5_vport *vport)
+void mlx5_esw_offloads_rep_remove(struct mlx5_eswitch *esw,
+				  const struct mlx5_vport *vport)
+{
+	struct mlx5_eswitch_rep *rep = xa_load(&esw->offloads.vport_reps,
+					       vport->vport);
+
+	if (!rep)
+		return;
+	xa_erase(&esw->offloads.vport_reps, vport->vport);
+	kfree(rep);
+}
+
+int mlx5_esw_offloads_rep_add(struct mlx5_eswitch *esw,
+			      const struct mlx5_vport *vport)
 {
 	struct mlx5_eswitch_rep *rep;
 	int rep_type;
@@ -2390,9 +2403,19 @@ static int mlx5_esw_offloads_rep_init(struct mlx5_eswitch *esw, const struct mlx
 
 	rep->vport = vport->vport;
 	rep->vport_index = vport->index;
-	for (rep_type = 0; rep_type < NUM_REP_TYPES; rep_type++)
-		atomic_set(&rep->rep_data[rep_type].state, REP_UNREGISTERED);
-
+	for (rep_type = 0; rep_type < NUM_REP_TYPES; rep_type++) {
+		if (!esw->offloads.rep_ops[rep_type]) {
+			atomic_set(&rep->rep_data[rep_type].state,
+				   REP_UNREGISTERED);
+			continue;
+		}
+		/* Dynamic/delegated vports add their representors after
+		 * mlx5_eswitch_register_vport_reps, so mark them as registered
+		 * for them to be loaded later with the others.
+		 */
+		rep->esw = esw;
+		atomic_set(&rep->rep_data[rep_type].state, REP_REGISTERED);
+	}
 	err = xa_insert(&esw->offloads.vport_reps, rep->vport, rep, GFP_KERNEL);
 	if (err)
 		goto insert_err;
@@ -2430,7 +2453,7 @@ static int esw_offloads_init_reps(struct mlx5_eswitch *esw)
 	xa_init(&esw->offloads.vport_reps);
 
 	mlx5_esw_for_each_vport(esw, i, vport) {
-		err = mlx5_esw_offloads_rep_init(esw, vport);
+		err = mlx5_esw_offloads_rep_add(esw, vport);
 		if (err)
 			goto err;
 	}
@@ -3538,6 +3561,8 @@ int esw_offloads_enable(struct mlx5_eswitch *esw)
 	int err;
 
 	mutex_init(&esw->offloads.termtbl_mutex);
+	mlx5_esw_adjacent_vhcas_setup(esw);
+
 	err = mlx5_rdma_enable_roce(esw->dev);
 	if (err)
 		goto err_roce;
@@ -3602,6 +3627,7 @@ int esw_offloads_enable(struct mlx5_eswitch *esw)
 err_metadata:
 	mlx5_rdma_disable_roce(esw->dev);
 err_roce:
+	mlx5_esw_adjacent_vhcas_cleanup(esw);
 	mutex_destroy(&esw->offloads.termtbl_mutex);
 	return err;
 }
@@ -3635,6 +3661,7 @@ void esw_offloads_disable(struct mlx5_eswitch *esw)
 	mapping_destroy(esw->offloads.reg_c0_obj_pool);
 	esw_offloads_metadata_uninit(esw);
 	mlx5_rdma_disable_roce(esw->dev);
+	mlx5_esw_adjacent_vhcas_cleanup(esw);
 	mutex_destroy(&esw->offloads.termtbl_mutex);
 }
 
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
index cb165085a4c1..4308e89802f3 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
@@ -2793,30 +2793,32 @@ struct mlx5_flow_namespace *mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
 }
 EXPORT_SYMBOL(mlx5_get_flow_namespace);
 
+struct mlx5_vport_acl_root_ns {
+	u16 vport_idx;
+	struct mlx5_flow_root_namespace *root_ns;
+};
+
 struct mlx5_flow_namespace *
 mlx5_get_flow_vport_namespace(struct mlx5_core_dev *dev,
 			      enum mlx5_flow_namespace_type type, int vport_idx)
 {
 	struct mlx5_flow_steering *steering = dev->priv.steering;
+	struct mlx5_vport_acl_root_ns *vport_ns;
 
 	if (!steering)
 		return NULL;
 
 	switch (type) {
 	case MLX5_FLOW_NAMESPACE_ESW_EGRESS:
-		if (vport_idx >= steering->esw_egress_acl_vports)
-			return NULL;
-		if (steering->esw_egress_root_ns &&
-		    steering->esw_egress_root_ns[vport_idx])
-			return &steering->esw_egress_root_ns[vport_idx]->ns;
+		vport_ns = xa_load(&steering->esw_egress_root_ns, vport_idx);
+		if (vport_ns)
+			return &vport_ns->root_ns->ns;
 		else
 			return NULL;
 	case MLX5_FLOW_NAMESPACE_ESW_INGRESS:
-		if (vport_idx >= steering->esw_ingress_acl_vports)
-			return NULL;
-		if (steering->esw_ingress_root_ns &&
-		    steering->esw_ingress_root_ns[vport_idx])
-			return &steering->esw_ingress_root_ns[vport_idx]->ns;
+		vport_ns = xa_load(&steering->esw_ingress_root_ns, vport_idx);
+		if (vport_ns)
+			return &vport_ns->root_ns->ns;
 		else
 			return NULL;
 	case MLX5_FLOW_NAMESPACE_RDMA_TRANSPORT_RX:
@@ -3575,118 +3577,102 @@ static int init_fdb_root_ns(struct mlx5_flow_steering *steering)
 	return err;
 }
 
-static int init_egress_acl_root_ns(struct mlx5_flow_steering *steering, int vport)
+static void
+mlx5_fs_remove_vport_acl_root_ns(struct xarray *esw_acl_root_ns, u16 vport_idx)
 {
-	struct fs_prio *prio;
+	struct mlx5_vport_acl_root_ns *vport_ns;
 
-	steering->esw_egress_root_ns[vport] = create_root_ns(steering, FS_FT_ESW_EGRESS_ACL);
-	if (!steering->esw_egress_root_ns[vport])
-		return -ENOMEM;
-
-	/* create 1 prio*/
-	prio = fs_create_prio(&steering->esw_egress_root_ns[vport]->ns, 0, 1);
-	return PTR_ERR_OR_ZERO(prio);
-}
-
-static int init_ingress_acl_root_ns(struct mlx5_flow_steering *steering, int vport)
-{
-	struct fs_prio *prio;
-
-	steering->esw_ingress_root_ns[vport] = create_root_ns(steering, FS_FT_ESW_INGRESS_ACL);
-	if (!steering->esw_ingress_root_ns[vport])
-		return -ENOMEM;
-
-	/* create 1 prio*/
-	prio = fs_create_prio(&steering->esw_ingress_root_ns[vport]->ns, 0, 1);
-	return PTR_ERR_OR_ZERO(prio);
-}
-
-int mlx5_fs_egress_acls_init(struct mlx5_core_dev *dev, int total_vports)
-{
-	struct mlx5_flow_steering *steering = dev->priv.steering;
-	int err;
-	int i;
-
-	steering->esw_egress_root_ns =
-			kcalloc(total_vports,
-				sizeof(*steering->esw_egress_root_ns),
-				GFP_KERNEL);
-	if (!steering->esw_egress_root_ns)
-		return -ENOMEM;
-
-	for (i = 0; i < total_vports; i++) {
-		err = init_egress_acl_root_ns(steering, i);
-		if (err)
-			goto cleanup_root_ns;
+	vport_ns = xa_erase(esw_acl_root_ns, vport_idx);
+	if (vport_ns) {
+		cleanup_root_ns(vport_ns->root_ns);
+		kfree(vport_ns);
 	}
-	steering->esw_egress_acl_vports = total_vports;
+}
+
+static int
+mlx5_fs_add_vport_acl_root_ns(struct mlx5_flow_steering *steering,
+			      struct xarray *esw_acl_root_ns,
+			      enum fs_flow_table_type table_type,
+			      u16 vport_idx)
+{
+	struct mlx5_vport_acl_root_ns *vport_ns;
+	struct fs_prio *prio;
+	int err;
+
+	/* sanity check, intended xarrays are used */
+	if (WARN_ON(esw_acl_root_ns != &steering->esw_egress_root_ns &&
+		    esw_acl_root_ns != &steering->esw_ingress_root_ns))
+		return -EINVAL;
+
+	if (table_type != FS_FT_ESW_EGRESS_ACL &&
+	    table_type != FS_FT_ESW_INGRESS_ACL) {
+		mlx5_core_err(steering->dev,
+			      "Invalid table type %d for egress/ingress ACLs\n",
+			      table_type);
+		return -EINVAL;
+	}
+
+	if (xa_load(esw_acl_root_ns, vport_idx))
+		return -EEXIST;
+
+	vport_ns = kzalloc(sizeof(*vport_ns), GFP_KERNEL);
+	if (!vport_ns)
+		return -ENOMEM;
+
+	vport_ns->root_ns = create_root_ns(steering, table_type);
+	if (!vport_ns->root_ns) {
+		err = -ENOMEM;
+		goto kfree_vport_ns;
+	}
+
+	/* create 1 prio*/
+	prio = fs_create_prio(&vport_ns->root_ns->ns, 0, 1);
+	if (IS_ERR(prio)) {
+		err = PTR_ERR(prio);
+		goto cleanup_root_ns;
+	}
+
+	vport_ns->vport_idx = vport_idx;
+	err = xa_insert(esw_acl_root_ns, vport_idx, vport_ns, GFP_KERNEL);
+	if (err)
+		goto cleanup_root_ns;
 	return 0;
 
 cleanup_root_ns:
-	for (i--; i >= 0; i--)
-		cleanup_root_ns(steering->esw_egress_root_ns[i]);
-	kfree(steering->esw_egress_root_ns);
-	steering->esw_egress_root_ns = NULL;
+	cleanup_root_ns(vport_ns->root_ns);
+kfree_vport_ns:
+	kfree(vport_ns);
 	return err;
 }
 
-void mlx5_fs_egress_acls_cleanup(struct mlx5_core_dev *dev)
+int mlx5_fs_vport_egress_acl_ns_add(struct mlx5_flow_steering *steering,
+				    u16 vport_idx)
 {
-	struct mlx5_flow_steering *steering = dev->priv.steering;
-	int i;
-
-	if (!steering->esw_egress_root_ns)
-		return;
-
-	for (i = 0; i < steering->esw_egress_acl_vports; i++)
-		cleanup_root_ns(steering->esw_egress_root_ns[i]);
-
-	kfree(steering->esw_egress_root_ns);
-	steering->esw_egress_root_ns = NULL;
+	return mlx5_fs_add_vport_acl_root_ns(steering,
+					     &steering->esw_egress_root_ns,
+					     FS_FT_ESW_EGRESS_ACL, vport_idx);
 }
 
-int mlx5_fs_ingress_acls_init(struct mlx5_core_dev *dev, int total_vports)
+int mlx5_fs_vport_ingress_acl_ns_add(struct mlx5_flow_steering *steering,
+				     u16 vport_idx)
 {
-	struct mlx5_flow_steering *steering = dev->priv.steering;
-	int err;
-	int i;
-
-	steering->esw_ingress_root_ns =
-			kcalloc(total_vports,
-				sizeof(*steering->esw_ingress_root_ns),
-				GFP_KERNEL);
-	if (!steering->esw_ingress_root_ns)
-		return -ENOMEM;
-
-	for (i = 0; i < total_vports; i++) {
-		err = init_ingress_acl_root_ns(steering, i);
-		if (err)
-			goto cleanup_root_ns;
-	}
-	steering->esw_ingress_acl_vports = total_vports;
-	return 0;
-
-cleanup_root_ns:
-	for (i--; i >= 0; i--)
-		cleanup_root_ns(steering->esw_ingress_root_ns[i]);
-	kfree(steering->esw_ingress_root_ns);
-	steering->esw_ingress_root_ns = NULL;
-	return err;
+	return mlx5_fs_add_vport_acl_root_ns(steering,
+					     &steering->esw_ingress_root_ns,
+					     FS_FT_ESW_INGRESS_ACL, vport_idx);
 }
 
-void mlx5_fs_ingress_acls_cleanup(struct mlx5_core_dev *dev)
+void mlx5_fs_vport_egress_acl_ns_remove(struct mlx5_flow_steering *steering,
+					int vport_idx)
 {
-	struct mlx5_flow_steering *steering = dev->priv.steering;
-	int i;
+	mlx5_fs_remove_vport_acl_root_ns(&steering->esw_egress_root_ns,
+					 vport_idx);
+}
 
-	if (!steering->esw_ingress_root_ns)
-		return;
-
-	for (i = 0; i < steering->esw_ingress_acl_vports; i++)
-		cleanup_root_ns(steering->esw_ingress_root_ns[i]);
-
-	kfree(steering->esw_ingress_root_ns);
-	steering->esw_ingress_root_ns = NULL;
+void mlx5_fs_vport_ingress_acl_ns_remove(struct mlx5_flow_steering *steering,
+					 int vport_idx)
+{
+	mlx5_fs_remove_vport_acl_root_ns(&steering->esw_ingress_root_ns,
+					 vport_idx);
 }
 
 u32 mlx5_fs_get_capabilities(struct mlx5_core_dev *dev, enum mlx5_flow_namespace_type type)
@@ -3818,6 +3804,11 @@ void mlx5_fs_core_cleanup(struct mlx5_core_dev *dev)
 {
 	struct mlx5_flow_steering *steering = dev->priv.steering;
 
+	WARN_ON(!xa_empty(&steering->esw_egress_root_ns));
+	WARN_ON(!xa_empty(&steering->esw_ingress_root_ns));
+	xa_destroy(&steering->esw_egress_root_ns);
+	xa_destroy(&steering->esw_ingress_root_ns);
+
 	cleanup_root_ns(steering->root_ns);
 	cleanup_fdb_root_ns(steering);
 	cleanup_root_ns(steering->port_sel_root_ns);
@@ -3908,6 +3899,8 @@ int mlx5_fs_core_init(struct mlx5_core_dev *dev)
 			goto err;
 	}
 
+	xa_init(&steering->esw_egress_root_ns);
+	xa_init(&steering->esw_ingress_root_ns);
 	return 0;
 
 err:
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h
index 500826229b0b..7877d9a2118d 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h
@@ -151,16 +151,14 @@ struct mlx5_flow_steering {
 	struct mlx5_flow_root_namespace *root_ns;
 	struct mlx5_flow_root_namespace *fdb_root_ns;
 	struct mlx5_flow_namespace	**fdb_sub_ns;
-	struct mlx5_flow_root_namespace **esw_egress_root_ns;
-	struct mlx5_flow_root_namespace **esw_ingress_root_ns;
+	struct xarray			esw_egress_root_ns;
+	struct xarray			esw_ingress_root_ns;
 	struct mlx5_flow_root_namespace	*sniffer_tx_root_ns;
 	struct mlx5_flow_root_namespace	*sniffer_rx_root_ns;
 	struct mlx5_flow_root_namespace	*rdma_rx_root_ns;
 	struct mlx5_flow_root_namespace	*rdma_tx_root_ns;
 	struct mlx5_flow_root_namespace	*egress_root_ns;
 	struct mlx5_flow_root_namespace	*port_sel_root_ns;
-	int esw_egress_acl_vports;
-	int esw_ingress_acl_vports;
 	struct mlx5_flow_root_namespace **rdma_transport_rx_root_ns;
 	struct mlx5_flow_root_namespace **rdma_transport_tx_root_ns;
 	int rdma_transport_rx_vports;
@@ -378,10 +376,14 @@ void mlx5_fs_core_free(struct mlx5_core_dev *dev);
 int mlx5_fs_core_init(struct mlx5_core_dev *dev);
 void mlx5_fs_core_cleanup(struct mlx5_core_dev *dev);
 
-int mlx5_fs_egress_acls_init(struct mlx5_core_dev *dev, int total_vports);
-void mlx5_fs_egress_acls_cleanup(struct mlx5_core_dev *dev);
-int mlx5_fs_ingress_acls_init(struct mlx5_core_dev *dev, int total_vports);
-void mlx5_fs_ingress_acls_cleanup(struct mlx5_core_dev *dev);
+int mlx5_fs_vport_egress_acl_ns_add(struct mlx5_flow_steering *steering,
+				    u16 vport_idx);
+int mlx5_fs_vport_ingress_acl_ns_add(struct mlx5_flow_steering *steering,
+				     u16 vport_idx);
+void mlx5_fs_vport_egress_acl_ns_remove(struct mlx5_flow_steering *steering,
+					int vport_idx);
+void mlx5_fs_vport_ingress_acl_ns_remove(struct mlx5_flow_steering *steering,
+					 int vport_idx);
 
 u32 mlx5_fs_get_capabilities(struct mlx5_core_dev *dev, enum mlx5_flow_namespace_type type);
 
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/cmd.c
index acb0317f930b..f22eaf506d28 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/cmd.c
@@ -1200,40 +1200,20 @@ int mlx5hws_cmd_query_caps(struct mlx5_core_dev *mdev,
 int mlx5hws_cmd_query_gvmi(struct mlx5_core_dev *mdev, bool other_function,
 			   u16 vport_number, u16 *gvmi)
 {
-	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;
+	if (!other_function) {
+		/* self vhca_id */
+		*gvmi = MLX5_CAP_GEN(mdev, vhca_id);
+		return 0;
+	}
 
+	err = mlx5_vport_get_vhca_id(mdev, vport_number, gvmi);
+	if (err) {
 		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, op_mod,
-		 MLX5_SET_HCA_CAP_OP_MOD_GENERAL_DEVICE << 1 | HCA_CAP_OPMOD_GET_CUR);
-
-	err = mlx5_cmd_exec_inout(mdev, query_hca_cap, in, out);
-	if (err) {
-		kfree(out);
-		return err;
-	}
-
-	*gvmi = MLX5_GET(query_hca_cap_out, out, capability.cmd_hca_cap.vhca_id);
-
-	kfree(out);
-
 	return 0;
 }
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/sws/dr_cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/sws/dr_cmd.c
index bf99b933fd14..1ebb2b15c080 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/steering/sws/dr_cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/sws/dr_cmd.c
@@ -35,41 +35,21 @@ int mlx5dr_cmd_query_esw_vport_context(struct mlx5_core_dev *mdev,
 int mlx5dr_cmd_query_gvmi(struct mlx5_core_dev *mdev, bool other_vport,
 			  u16 vport_number, u16 *gvmi)
 {
-	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;
+	if (!other_vport) {
+		/* self vhca_id */
+		*gvmi = MLX5_CAP_GEN(mdev, vhca_id);
+		return 0;
+	}
 
+	err = mlx5_vport_get_vhca_id(mdev, vport_number, gvmi);
+	if (err) {
 		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, op_mod,
-		 MLX5_SET_HCA_CAP_OP_MOD_GENERAL_DEVICE << 1 |
-		 HCA_CAP_OPMOD_GET_CUR);
-
-	err = mlx5_cmd_exec_inout(mdev, query_hca_cap, in, out);
-	if (err) {
-		kfree(out);
-		return err;
-	}
-
-	*gvmi = MLX5_GET(query_hca_cap_out, out, capability.cmd_hca_cap.vhca_id);
-
-	kfree(out);
 	return 0;
 }