diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
index 04736212a21c9eb0f72c9ca7b5a95b8590626f84..f75227222db380148a6e916804f0b43432f161ab 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
@@ -1126,9 +1126,17 @@ static int mlx5e_rep_get_phys_port_name(struct net_device *dev,
 	struct mlx5e_priv *priv = netdev_priv(dev);
 	struct mlx5e_rep_priv *rpriv = priv->ppriv;
 	struct mlx5_eswitch_rep *rep = rpriv->rep;
-	int ret;
+	int ret, pf_num;
+
+	ret = mlx5_lag_get_pf_num(priv->mdev, &pf_num);
+	if (ret)
+		return ret;
+
+	if (rep->vport == FDB_UPLINK_VPORT)
+		ret = snprintf(buf, len, "p%d", pf_num);
+	else
+		ret = snprintf(buf, len, "pf%dvf%d", pf_num, rep->vport - 1);
 
-	ret = snprintf(buf, len, "%d", rep->vport - 1);
 	if (ret >= len)
 		return -EOPNOTSUPP;
 
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lag.c b/drivers/net/ethernet/mellanox/mlx5/core/lag.c
index 3a6baed722d855498254d0970b48fdfb16b784d3..2d223385dc81925e1dbe267f3e54c2b76a7daf19 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lag.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lag.c
@@ -616,6 +616,27 @@ void mlx5_lag_add(struct mlx5_core_dev *dev, struct net_device *netdev)
 	}
 }
 
+int mlx5_lag_get_pf_num(struct mlx5_core_dev *dev, int *pf_num)
+{
+	struct mlx5_lag *ldev;
+	int n;
+
+	ldev = mlx5_lag_dev_get(dev);
+	if (!ldev) {
+		mlx5_core_warn(dev, "no lag device, can't get pf num\n");
+		return -EINVAL;
+	}
+
+	for (n = 0; n < MLX5_MAX_PORTS; n++)
+		if (ldev->pf[n].dev == dev) {
+			*pf_num = n;
+			return 0;
+		}
+
+	mlx5_core_warn(dev, "wasn't able to locate pf in the lag device\n");
+	return -EINVAL;
+}
+
 /* Must be called with intf_mutex held */
 void mlx5_lag_remove(struct mlx5_core_dev *dev)
 {
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h b/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h
index c68dcea5985b9f7fed1ac71e23d978f43446a42f..5300b0b6d836d0a4b5410e341c6e4528316611ca 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h
@@ -187,6 +187,8 @@ static inline int mlx5_lag_is_lacp_owner(struct mlx5_core_dev *dev)
 		    MLX5_CAP_GEN(dev, lag_master);
 }
 
+int mlx5_lag_get_pf_num(struct mlx5_core_dev *dev, int *pf_num);
+
 void mlx5_reload_interface(struct mlx5_core_dev *mdev, int protocol);
 void mlx5_lag_update(struct mlx5_core_dev *dev);