--- dpdk-2.2.0-rc3/drivers/net/af_packet/rte_eth_af_packet.c.bak	2015-12-09 14:37:47.777957118 +0100
+++ dpdk-2.2.0-rc3/drivers/net/af_packet/rte_eth_af_packet.c	2015-12-09 14:51:10.612877611 +0100
@@ -74,6 +74,7 @@
 	unsigned int framenum;
 
 	struct rte_mempool *mb_pool;
+	uint8_t in_port;
 
 	volatile unsigned long rx_pkts;
 	volatile unsigned long err_pkts;
@@ -160,6 +161,8 @@
 		ppd->tp_status = TP_STATUS_KERNEL;
 		if (++framenum >= framecount)
 			framenum = 0;
+		
+		mbuf->port = pkt_q->in_port;
 
 		/* account for the receive frame */
 		bufs[i] = mbuf;
@@ -365,7 +368,7 @@
 	}
 
 	dev->data->rx_queues[rx_queue_id] = pkt_q;
-
+	pkt_q->in_port = dev->data->port_id;
 	return 0;
 }