diff --git a/drivers/net/ethernet/freescale/enetc/enetc.h b/drivers/net/ethernet/freescale/enetc/enetc.h
index 3de71669e317..08b283347d9c 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc.h
+++ b/drivers/net/ethernet/freescale/enetc/enetc.h
@@ -237,6 +237,22 @@ static inline bool enetc_si_is_pf(struct enetc_si *si)
 	return !!(si->hw.port);
 }
 
+static inline int enetc_pf_to_port(struct pci_dev *pf_pdev)
+{
+	switch (pf_pdev->devfn) {
+	case 0:
+		return 0;
+	case 1:
+		return 1;
+	case 2:
+		return 2;
+	case 6:
+		return 3;
+	default:
+		return -1;
+	}
+}
+
 #define ENETC_MAX_NUM_TXQS	8
 #define ENETC_INT_NAME_MAX	(IFNAMSIZ + 8)
 
diff --git a/drivers/net/ethernet/freescale/enetc/enetc_qos.c b/drivers/net/ethernet/freescale/enetc/enetc_qos.c
index cb7fa4bceaf2..af699f2ad095 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc_qos.c
+++ b/drivers/net/ethernet/freescale/enetc/enetc_qos.c
@@ -455,11 +455,6 @@ static struct enetc_psfp epsfp = {
 
 static LIST_HEAD(enetc_block_cb_list);
 
-static inline int enetc_get_port(struct enetc_ndev_priv *priv)
-{
-	return priv->si->pdev->devfn & 0x7;
-}
-
 /* Stream Identity Entry Set Descriptor */
 static int enetc_streamid_hw_set(struct enetc_ndev_priv *priv,
 				 struct enetc_streamid *sid,
@@ -504,7 +499,7 @@ static int enetc_streamid_hw_set(struct enetc_ndev_priv *priv,
 
 	si_conf = &cbd.sid_set;
 	/* Only one port supported for one entry, set itself */
-	si_conf->iports = cpu_to_le32(1 << enetc_get_port(priv));
+	si_conf->iports = cpu_to_le32(1 << enetc_pf_to_port(priv->si->pdev));
 	si_conf->id_type = 1;
 	si_conf->oui[2] = 0x0;
 	si_conf->oui[1] = 0x80;
@@ -529,7 +524,7 @@ static int enetc_streamid_hw_set(struct enetc_ndev_priv *priv,
 
 	si_conf->en = 0x80;
 	si_conf->stream_handle = cpu_to_le32(sid->handle);
-	si_conf->iports = cpu_to_le32(1 << enetc_get_port(priv));
+	si_conf->iports = cpu_to_le32(1 << enetc_pf_to_port(priv->si->pdev));
 	si_conf->id_type = sid->filtertype;
 	si_conf->oui[2] = 0x0;
 	si_conf->oui[1] = 0x80;
@@ -591,7 +586,8 @@ static int enetc_streamfilter_hw_set(struct enetc_ndev_priv *priv,
 	}
 
 	sfi_config->sg_inst_table_index = cpu_to_le16(sfi->gate_id);
-	sfi_config->input_ports = cpu_to_le32(1 << enetc_get_port(priv));
+	sfi_config->input_ports =
+		cpu_to_le32(1 << enetc_pf_to_port(priv->si->pdev));
 
 	/* The priority value which may be matched against the
 	 * frame’s priority value to determine a match for this entry.
@@ -1562,10 +1558,10 @@ int enetc_setup_tc_psfp(struct net_device *ndev, void *type_data)
 
 	switch (f->command) {
 	case FLOW_BLOCK_BIND:
-		set_bit(enetc_get_port(priv), &epsfp.dev_bitmap);
+		set_bit(enetc_pf_to_port(priv->si->pdev), &epsfp.dev_bitmap);
 		break;
 	case FLOW_BLOCK_UNBIND:
-		clear_bit(enetc_get_port(priv), &epsfp.dev_bitmap);
+		clear_bit(enetc_pf_to_port(priv->si->pdev), &epsfp.dev_bitmap);
 		if (!epsfp.dev_bitmap)
 			clean_psfp_all();
 		break;