cxgb3: assign port id to net_device->dev_port

T3 devices have different ports on same PCI function,
so using dev_port to identify ports.

Signed-off-by: Arjun Vynipadath <arjun@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c

@@ -3304,6 +3304,7 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 		netdev->ethtool_ops = &cxgb_ethtool_ops;
 		netdev->min_mtu = 81;
 		netdev->max_mtu = ETH_MAX_MTU;
+		netdev->dev_port = pi->port_id;
 	}
 
 	pci_set_drvdata(pdev, adapter);