diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c
index 36ecc2b2e187..881e2e55840c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c
@@ -40,7 +40,8 @@
 #include "eswitch.h"
 
 int mlx5_cmd_update_root_ft(struct mlx5_core_dev *dev,
-			    struct mlx5_flow_table *ft, u32 underlay_qpn)
+			    struct mlx5_flow_table *ft, u32 underlay_qpn,
+			    bool disconnect)
 {
 	u32 in[MLX5_ST_SZ_DW(set_flow_table_root_in)]   = {0};
 	u32 out[MLX5_ST_SZ_DW(set_flow_table_root_out)] = {0};
@@ -52,7 +53,15 @@ int mlx5_cmd_update_root_ft(struct mlx5_core_dev *dev,
 	MLX5_SET(set_flow_table_root_in, in, opcode,
 		 MLX5_CMD_OP_SET_FLOW_TABLE_ROOT);
 	MLX5_SET(set_flow_table_root_in, in, table_type, ft->type);
-	MLX5_SET(set_flow_table_root_in, in, table_id, ft->id);
+
+	if (disconnect) {
+		MLX5_SET(set_flow_table_root_in, in, op_mod, 1);
+		MLX5_SET(set_flow_table_root_in, in, table_id, 0);
+	} else {
+		MLX5_SET(set_flow_table_root_in, in, op_mod, 0);
+		MLX5_SET(set_flow_table_root_in, in, table_id, ft->id);
+	}
+
 	MLX5_SET(set_flow_table_root_in, in, underlay_qpn, underlay_qpn);
 	if (ft->vport) {
 		MLX5_SET(set_flow_table_root_in, in, vport_number, ft->vport);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.h b/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.h
index c6d7bdf255b6..71e2d0f37ad9 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.h
@@ -71,8 +71,8 @@ int mlx5_cmd_delete_fte(struct mlx5_core_dev *dev,
 			unsigned int index);
 
 int mlx5_cmd_update_root_ft(struct mlx5_core_dev *dev,
-			    struct mlx5_flow_table *ft,
-			    u32 underlay_qpn);
+			    struct mlx5_flow_table *ft, u32 underlay_qpn,
+			    bool disconnect);
 
 int mlx5_cmd_fc_alloc(struct mlx5_core_dev *dev, u32 *id);
 int mlx5_cmd_fc_free(struct mlx5_core_dev *dev, u32 id);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
index 5a7bea688ec8..8a1a7ba9fe53 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
@@ -693,8 +693,10 @@ static int update_root_ft_create(struct mlx5_flow_table *ft, struct fs_prio
 				 *prio)
 {
 	struct mlx5_flow_root_namespace *root = find_root(&prio->node);
+	struct mlx5_ft_underlay_qp *uqp;
 	int min_level = INT_MAX;
 	int err;
+	u32 qpn;
 
 	if (root->root_ft)
 		min_level = root->root_ft->level;
@@ -702,10 +704,24 @@ static int update_root_ft_create(struct mlx5_flow_table *ft, struct fs_prio
 	if (ft->level >= min_level)
 		return 0;
 
-	err = mlx5_cmd_update_root_ft(root->dev, ft, root->underlay_qpn);
+	if (list_empty(&root->underlay_qpns)) {
+		/* Don't set any QPN (zero) in case QPN list is empty */
+		qpn = 0;
+		err = mlx5_cmd_update_root_ft(root->dev, ft, qpn, false);
+	} else {
+		list_for_each_entry(uqp, &root->underlay_qpns, list) {
+			qpn = uqp->qpn;
+			err = mlx5_cmd_update_root_ft(root->dev, ft, qpn,
+						      false);
+			if (err)
+				break;
+		}
+	}
+
 	if (err)
-		mlx5_core_warn(root->dev, "Update root flow table of id=%u failed\n",
-			       ft->id);
+		mlx5_core_warn(root->dev,
+			       "Update root flow table of id(%u) qpn(%d) failed\n",
+			       ft->id, qpn);
 	else
 		root->root_ft = ft;
 
@@ -1661,23 +1677,43 @@ static struct mlx5_flow_table *find_next_ft(struct mlx5_flow_table *ft)
 static int update_root_ft_destroy(struct mlx5_flow_table *ft)
 {
 	struct mlx5_flow_root_namespace *root = find_root(&ft->node);
+	struct mlx5_ft_underlay_qp *uqp;
 	struct mlx5_flow_table *new_root_ft = NULL;
+	int err = 0;
+	u32 qpn;
 
 	if (root->root_ft != ft)
 		return 0;
 
 	new_root_ft = find_next_ft(ft);
-	if (new_root_ft) {
-		int err = mlx5_cmd_update_root_ft(root->dev, new_root_ft,
-						  root->underlay_qpn);
 
-		if (err) {
-			mlx5_core_warn(root->dev, "Update root flow table of id=%u failed\n",
-				       ft->id);
-			return err;
+	if (!new_root_ft) {
+		root->root_ft = NULL;
+		return 0;
+	}
+
+	if (list_empty(&root->underlay_qpns)) {
+		/* Don't set any QPN (zero) in case QPN list is empty */
+		qpn = 0;
+		err = mlx5_cmd_update_root_ft(root->dev, new_root_ft, qpn,
+					      false);
+	} else {
+		list_for_each_entry(uqp, &root->underlay_qpns, list) {
+			qpn = uqp->qpn;
+			err = mlx5_cmd_update_root_ft(root->dev, new_root_ft,
+						      qpn, false);
+			if (err)
+				break;
 		}
 	}
-	root->root_ft = new_root_ft;
+
+	if (err)
+		mlx5_core_warn(root->dev,
+			       "Update root flow table of id(%u) qpn(%d) failed\n",
+			       ft->id, qpn);
+	else
+		root->root_ft = new_root_ft;
+
 	return 0;
 }
 
@@ -1965,6 +2001,8 @@ static struct mlx5_flow_root_namespace *create_root_ns(struct mlx5_flow_steering
 	root_ns->dev = steering->dev;
 	root_ns->table_type = table_type;
 
+	INIT_LIST_HEAD(&root_ns->underlay_qpns);
+
 	ns = &root_ns->ns;
 	fs_init_namespace(ns);
 	mutex_init(&root_ns->chain_lock);
@@ -2245,17 +2283,76 @@ int mlx5_init_fs(struct mlx5_core_dev *dev)
 int mlx5_fs_add_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn)
 {
 	struct mlx5_flow_root_namespace *root = dev->priv.steering->root_ns;
+	struct mlx5_ft_underlay_qp *new_uqp;
+	int err = 0;
+
+	new_uqp = kzalloc(sizeof(*new_uqp), GFP_KERNEL);
+	if (!new_uqp)
+		return -ENOMEM;
+
+	mutex_lock(&root->chain_lock);
+
+	if (!root->root_ft) {
+		err = -EINVAL;
+		goto update_ft_fail;
+	}
+
+	err = mlx5_cmd_update_root_ft(dev, root->root_ft, underlay_qpn, false);
+	if (err) {
+		mlx5_core_warn(dev, "Failed adding underlay QPN (%u) to root FT err(%d)\n",
+			       underlay_qpn, err);
+		goto update_ft_fail;
+	}
+
+	new_uqp->qpn = underlay_qpn;
+	list_add_tail(&new_uqp->list, &root->underlay_qpns);
+
+	mutex_unlock(&root->chain_lock);
 
-	root->underlay_qpn = underlay_qpn;
 	return 0;
+
+update_ft_fail:
+	mutex_unlock(&root->chain_lock);
+	kfree(new_uqp);
+	return err;
 }
 EXPORT_SYMBOL(mlx5_fs_add_rx_underlay_qpn);
 
 int mlx5_fs_remove_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn)
 {
 	struct mlx5_flow_root_namespace *root = dev->priv.steering->root_ns;
+	struct mlx5_ft_underlay_qp *uqp;
+	bool found = false;
+	int err = 0;
+
+	mutex_lock(&root->chain_lock);
+	list_for_each_entry(uqp, &root->underlay_qpns, list) {
+		if (uqp->qpn == underlay_qpn) {
+			found = true;
+			break;
+		}
+	}
+
+	if (!found) {
+		mlx5_core_warn(dev, "Failed finding underlay qp (%u) in qpn list\n",
+			       underlay_qpn);
+		err = -EINVAL;
+		goto out;
+	}
+
+	err = mlx5_cmd_update_root_ft(dev, root->root_ft, underlay_qpn, true);
+	if (err)
+		mlx5_core_warn(dev, "Failed removing underlay QPN (%u) from root FT err(%d)\n",
+			       underlay_qpn, err);
+
+	list_del(&uqp->list);
+	mutex_unlock(&root->chain_lock);
+	kfree(uqp);
 
-	root->underlay_qpn = 0;
 	return 0;
+
+out:
+	mutex_unlock(&root->chain_lock);
+	return err;
 }
 EXPORT_SYMBOL(mlx5_fs_remove_rx_underlay_qpn);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h
index 48dd78975062..9bc048a89bc0 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h
@@ -147,6 +147,11 @@ struct mlx5_fc {
 	struct mlx5_fc_cache cache ____cacheline_aligned_in_smp;
 };
 
+struct mlx5_ft_underlay_qp {
+	struct list_head list;
+	u32 qpn;
+};
+
 #define MLX5_FTE_MATCH_PARAM_RESERVED	reserved_at_600
 /* Calculate the fte_match_param length and without the reserved length.
  * Make sure the reserved field is the last.
@@ -212,7 +217,7 @@ struct mlx5_flow_root_namespace {
 	struct mlx5_flow_table		*root_ft;
 	/* Should be held when chaining flow tables */
 	struct mutex			chain_lock;
-	u32				underlay_qpn;
+	struct list_head		underlay_qpns;
 };
 
 int mlx5_init_fc_stats(struct mlx5_core_dev *dev);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c
index feb94db6b921..00f0e6a038bb 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c
@@ -218,12 +218,6 @@ static int mlx5i_init_tx(struct mlx5e_priv *priv)
 		return err;
 	}
 
-	err = mlx5i_init_underlay_qp(priv);
-	if (err) {
-		mlx5_core_warn(priv->mdev, "intilize underlay QP failed, %d\n", err);
-		goto err_destroy_underlay_qp;
-	}
-
 	err = mlx5e_create_tis(priv->mdev, 0 /* tc */, ipriv->qp.qpn, &priv->tisn[0]);
 	if (err) {
 		mlx5_core_warn(priv->mdev, "create tis failed, %d\n", err);
@@ -285,7 +279,6 @@ static void mlx5i_destroy_flow_steering(struct mlx5e_priv *priv)
 
 static int mlx5i_init_rx(struct mlx5e_priv *priv)
 {
-	struct mlx5i_priv *ipriv  = priv->ppriv;
 	int err;
 
 	err = mlx5e_create_indirect_rqt(priv);
@@ -304,18 +297,12 @@ static int mlx5i_init_rx(struct mlx5e_priv *priv)
 	if (err)
 		goto err_destroy_indirect_tirs;
 
-	err = mlx5_fs_add_rx_underlay_qpn(priv->mdev, ipriv->qp.qpn);
-	if (err)
-		goto err_destroy_direct_tirs;
-
 	err = mlx5i_create_flow_steering(priv);
 	if (err)
-		goto err_remove_rx_underlay_qpn;
+		goto err_destroy_direct_tirs;
 
 	return 0;
 
-err_remove_rx_underlay_qpn:
-	mlx5_fs_remove_rx_underlay_qpn(priv->mdev, ipriv->qp.qpn);
 err_destroy_direct_tirs:
 	mlx5e_destroy_direct_tirs(priv);
 err_destroy_indirect_tirs:
@@ -329,9 +316,6 @@ static int mlx5i_init_rx(struct mlx5e_priv *priv)
 
 static void mlx5i_cleanup_rx(struct mlx5e_priv *priv)
 {
-	struct mlx5i_priv *ipriv  = priv->ppriv;
-
-	mlx5_fs_remove_rx_underlay_qpn(priv->mdev, ipriv->qp.qpn);
 	mlx5i_destroy_flow_steering(priv);
 	mlx5e_destroy_direct_tirs(priv);
 	mlx5e_destroy_indirect_tirs(priv);
@@ -423,49 +407,71 @@ static void mlx5i_dev_cleanup(struct net_device *dev)
 
 static int mlx5i_open(struct net_device *netdev)
 {
-	struct mlx5e_priv *priv = mlx5i_epriv(netdev);
+	struct mlx5e_priv *epriv = mlx5i_epriv(netdev);
+	struct mlx5i_priv *ipriv = epriv->ppriv;
+	struct mlx5_core_dev *mdev = epriv->mdev;
 	int err;
 
-	mutex_lock(&priv->state_lock);
+	mutex_lock(&epriv->state_lock);
 
-	set_bit(MLX5E_STATE_OPENED, &priv->state);
+	set_bit(MLX5E_STATE_OPENED, &epriv->state);
 
-	err = mlx5e_open_channels(priv, &priv->channels);
-	if (err)
+	err = mlx5i_init_underlay_qp(epriv);
+	if (err) {
+		mlx5_core_warn(mdev, "prepare underlay qp state failed, %d\n", err);
 		goto err_clear_state_opened_flag;
+	}
 
-	mlx5e_refresh_tirs(priv, false);
-	mlx5e_activate_priv_channels(priv);
-	mlx5e_timestamp_set(priv);
+	err = mlx5_fs_add_rx_underlay_qpn(mdev, ipriv->qp.qpn);
+	if (err) {
+		mlx5_core_warn(mdev, "attach underlay qp to ft failed, %d\n", err);
+		goto err_reset_qp;
+	}
 
-	mutex_unlock(&priv->state_lock);
+	err = mlx5e_open_channels(epriv, &epriv->channels);
+	if (err)
+		goto err_remove_fs_underlay_qp;
+
+	mlx5e_refresh_tirs(epriv, false);
+	mlx5e_activate_priv_channels(epriv);
+	mlx5e_timestamp_set(epriv);
+
+	mutex_unlock(&epriv->state_lock);
 	return 0;
 
+err_remove_fs_underlay_qp:
+	mlx5_fs_remove_rx_underlay_qpn(mdev, ipriv->qp.qpn);
+err_reset_qp:
+	mlx5i_uninit_underlay_qp(epriv);
 err_clear_state_opened_flag:
-	clear_bit(MLX5E_STATE_OPENED, &priv->state);
-	mutex_unlock(&priv->state_lock);
+	clear_bit(MLX5E_STATE_OPENED, &epriv->state);
+	mutex_unlock(&epriv->state_lock);
 	return err;
 }
 
 static int mlx5i_close(struct net_device *netdev)
 {
-	struct mlx5e_priv *priv = mlx5i_epriv(netdev);
+	struct mlx5e_priv *epriv = mlx5i_epriv(netdev);
+	struct mlx5i_priv *ipriv = epriv->ppriv;
+	struct mlx5_core_dev *mdev = epriv->mdev;
 
 	/* May already be CLOSED in case a previous configuration operation
 	 * (e.g RX/TX queue size change) that involves close&open failed.
 	 */
-	mutex_lock(&priv->state_lock);
+	mutex_lock(&epriv->state_lock);
 
-	if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
+	if (!test_bit(MLX5E_STATE_OPENED, &epriv->state))
 		goto unlock;
 
-	clear_bit(MLX5E_STATE_OPENED, &priv->state);
+	clear_bit(MLX5E_STATE_OPENED, &epriv->state);
 
-	netif_carrier_off(priv->netdev);
-	mlx5e_deactivate_priv_channels(priv);
-	mlx5e_close_channels(&priv->channels);
+	netif_carrier_off(epriv->netdev);
+	mlx5_fs_remove_rx_underlay_qpn(mdev, ipriv->qp.qpn);
+	mlx5i_uninit_underlay_qp(epriv);
+	mlx5e_deactivate_priv_channels(epriv);
+	mlx5e_close_channels(&epriv->channels);;
 unlock:
-	mutex_unlock(&priv->state_lock);
+	mutex_unlock(&epriv->state_lock);
 	return 0;
 }
 
