[dpdk-dev] [PATCH 3/4] examples: remove useless debug flags

Thomas Monjalon thomas.monjalon at 6wind.com
Fri Apr 22 15:43:59 CEST 2016


The debug logs must be enabled at compile-time and run-time.
There are also some internal flags in some examples to enable the debug
logs of the applications. They are now enabled in debug configs and
can be disabled thanks to the more generic logtype mechanism:
	rte_set_log_type(RTE_LOGTYPE_USER1, 0);

Removing these #ifdef allows to test these code branches more easily
and avoid dead code pitfalls.

Signed-off-by: Thomas Monjalon <thomas.monjalon at 6wind.com>
---
 examples/distributor/main.c     |  19 ++----
 examples/ipsec-secgw/esp.c      |  14 ++--
 examples/ipsec-secgw/ipsec.c    |   6 +-
 examples/ipsec-secgw/ipsec.h    |   3 -
 examples/l3fwd-acl/main.c       |   3 +
 examples/packet_ordering/main.c |  18 ++---
 examples/tep_termination/main.c |   7 +-
 examples/tep_termination/main.h |   8 ---
 examples/vhost/main.c           | 143 +++++++++++++++++++++-------------------
 examples/vhost/main.h           |  12 ----
 examples/vhost_xen/main.c       |  62 +++++++----------
 examples/vhost_xen/main.h       |  11 ----
 12 files changed, 120 insertions(+), 186 deletions(-)

diff --git a/examples/distributor/main.c b/examples/distributor/main.c
index c0201a9..0266d95 100644
--- a/examples/distributor/main.c
+++ b/examples/distributor/main.c
@@ -52,19 +52,6 @@
 #define BURST_SIZE 32
 #define RTE_RING_SZ 1024
 
-/* uncommnet below line to enable debug logs */
-/* #define DEBUG */
-
-#ifdef DEBUG
-#define LOG_LEVEL RTE_LOG_DEBUG
-#define LOG_DEBUG(log_type, fmt, args...) do {	\
-	RTE_LOG(DEBUG, log_type, fmt, ##args);		\
-} while (0)
-#else
-#define LOG_LEVEL RTE_LOG_INFO
-#define LOG_DEBUG(log_type, fmt, args...) do {} while (0)
-#endif
-
 #define RTE_LOGTYPE_DISTRAPP RTE_LOGTYPE_USER1
 
 /* mask of enabled ports */
@@ -240,7 +227,8 @@ lcore_rx(struct lcore_params *p)
 		uint16_t sent = rte_ring_enqueue_burst(r, (void *)bufs, nb_ret);
 		app_stats.rx.enqueued_pkts += sent;
 		if (unlikely(sent < nb_ret)) {
-			LOG_DEBUG(DISTRAPP, "%s:Packet loss due to full ring\n", __func__);
+			RTE_LOG(DEBUG, DISTRAPP,
+				"%s:Packet loss due to full ring\n", __func__);
 			while (sent < nb_ret)
 				rte_pktmbuf_free(bufs[sent++]);
 		}
@@ -271,7 +259,8 @@ flush_one_port(struct output_buffer *outbuf, uint8_t outp)
 	app_stats.tx.tx_pkts += nb_tx;
 
 	if (unlikely(nb_tx < outbuf->count)) {
-		LOG_DEBUG(DISTRAPP, "%s:Packet loss with tx_burst\n", __func__);
+		RTE_LOG(DEBUG, DISTRAPP,
+			"%s:Packet loss with tx_burst\n", __func__);
 		do {
 			rte_pktmbuf_free(outbuf->mbufs[nb_tx]);
 		} while (++nb_tx < outbuf->count);
diff --git a/examples/ipsec-secgw/esp.c b/examples/ipsec-secgw/esp.c
index 1927380..4611631 100644
--- a/examples/ipsec-secgw/esp.c
+++ b/examples/ipsec-secgw/esp.c
@@ -83,7 +83,7 @@ esp4_tunnel_inbound_pre_crypto(struct rte_mbuf *m, struct ipsec_sa *sa,
 		sa->digest_len;
 
 	if ((payload_len & (sa->block_size - 1)) || (payload_len <= 0)) {
-		IPSEC_LOG(DEBUG, IPSEC_ESP, "payload %d not multiple of %u\n",
+		RTE_LOG(DEBUG, IPSEC_ESP, "payload %d not multiple of %u\n",
 				payload_len, sa->block_size);
 		return -EINVAL;
 	}
@@ -129,7 +129,7 @@ esp4_tunnel_inbound_post_crypto(struct rte_mbuf *m, struct ipsec_sa *sa,
 	IPSEC_ASSERT(cop != NULL);
 
 	if (cop->status != RTE_CRYPTO_OP_STATUS_SUCCESS) {
-		IPSEC_LOG(ERR, IPSEC_ESP, "Failed crypto op\n");
+		RTE_LOG(ERR, IPSEC_ESP, "Failed crypto op\n");
 		return -1;
 	}
 
@@ -140,13 +140,13 @@ esp4_tunnel_inbound_post_crypto(struct rte_mbuf *m, struct ipsec_sa *sa,
 	padding = pad_len - *pad_len;
 	for (i = 0; i < *pad_len; i++) {
 		if (padding[i] != i) {
-			IPSEC_LOG(ERR, IPSEC_ESP, "invalid pad_len field\n");
+			RTE_LOG(ERR, IPSEC_ESP, "invalid pad_len field\n");
 			return -EINVAL;
 		}
 	}
 
 	if (rte_pktmbuf_trim(m, *pad_len + 2 + sa->digest_len)) {
-		IPSEC_LOG(ERR, IPSEC_ESP,
+		RTE_LOG(ERR, IPSEC_ESP,
 				"failed to remove pad_len + digest\n");
 		return -EINVAL;
 	}
@@ -180,7 +180,7 @@ esp4_tunnel_outbound_pre_crypto(struct rte_mbuf *m, struct ipsec_sa *sa,
 	/* Check maximum packet size */
 	if (unlikely(IP_ESP_HDR_SZ + sa->iv_len + pad_payload_len +
 				sa->digest_len > IP_MAXPACKET)) {
-		IPSEC_LOG(DEBUG, IPSEC_ESP, "ipsec packet is too big\n");
+		RTE_LOG(DEBUG, IPSEC_ESP, "ipsec packet is too big\n");
 		return -EINVAL;
 	}
 
@@ -195,7 +195,7 @@ esp4_tunnel_outbound_pre_crypto(struct rte_mbuf *m, struct ipsec_sa *sa,
 	esp->spi = sa->spi;
 	esp->seq = htonl(sa->seq++);
 
-	IPSEC_LOG(DEBUG, IPSEC_ESP, "pktlen %u\n", rte_pktmbuf_pkt_len(m));
+	RTE_LOG(DEBUG, IPSEC_ESP, "pktlen %u\n", rte_pktmbuf_pkt_len(m));
 
 	/* Fill pad_len using default sequential scheme */
 	for (i = 0; i < pad_len - 2; i++)
@@ -243,7 +243,7 @@ esp4_tunnel_outbound_post_crypto(struct rte_mbuf *m __rte_unused,
 	IPSEC_ASSERT(cop != NULL);
 
 	if (cop->status != RTE_CRYPTO_OP_STATUS_SUCCESS) {
-		IPSEC_LOG(ERR, IPSEC_ESP, "Failed crypto op\n");
+		RTE_LOG(ERR, IPSEC_ESP, "Failed crypto op\n");
 		return -1;
 	}
 
diff --git a/examples/ipsec-secgw/ipsec.c b/examples/ipsec-secgw/ipsec.c
index baf30d4..0654c06 100644
--- a/examples/ipsec-secgw/ipsec.c
+++ b/examples/ipsec-secgw/ipsec.c
@@ -58,13 +58,13 @@ create_session(struct ipsec_ctx *ipsec_ctx __rte_unused, struct ipsec_sa *sa)
 	ret = rte_hash_lookup_data(ipsec_ctx->cdev_map, &key,
 			(void **)&cdev_id_qp);
 	if (ret < 0) {
-		IPSEC_LOG(ERR, IPSEC, "No cryptodev: core %u, cipher_algo %u, "
+		RTE_LOG(ERR, IPSEC, "No cryptodev: core %u, cipher_algo %u, "
 				"auth_algo %u\n", key.lcore_id, key.cipher_algo,
 				key.auth_algo);
 		return -1;
 	}
 
-	IPSEC_LOG(DEBUG, IPSEC, "Create session for SA spi %u on cryptodev "
+	RTE_LOG(DEBUG, IPSEC, "Create session for SA spi %u on cryptodev "
 			"%u qp %u\n", sa->spi, ipsec_ctx->tbl[cdev_id_qp].id,
 			ipsec_ctx->tbl[cdev_id_qp].qp);
 
@@ -87,7 +87,7 @@ enqueue_cop(struct cdev_qp *cqp, struct rte_crypto_op *cop)
 		ret = rte_cryptodev_enqueue_burst(cqp->id, cqp->qp,
 				cqp->buf, cqp->len);
 		if (ret < cqp->len) {
-			IPSEC_LOG(DEBUG, IPSEC, "Cryptodev %u queue %u:"
+			RTE_LOG(DEBUG, IPSEC, "Cryptodev %u queue %u:"
 					" enqueued %u crypto ops out of %u\n",
 					 cqp->id, cqp->qp,
 					 ret, cqp->len);
diff --git a/examples/ipsec-secgw/ipsec.h b/examples/ipsec-secgw/ipsec.h
index a13fdef..50037e2 100644
--- a/examples/ipsec-secgw/ipsec.h
+++ b/examples/ipsec-secgw/ipsec.h
@@ -52,11 +52,8 @@
 if (!(exp)) {                                                        \
 	rte_panic("line%d\tassert \"" #exp "\" failed\n", __LINE__); \
 }
-
-#define IPSEC_LOG RTE_LOG
 #else
 #define IPSEC_ASSERT(exp) do {} while (0)
-#define IPSEC_LOG(...) do {} while (0)
 #endif /* IPSEC_DEBUG */
 
 #define MAX_DIGEST_SIZE 32 /* Bytes -- 256 bits */
diff --git a/examples/l3fwd-acl/main.c b/examples/l3fwd-acl/main.c
index 26d9f5e..c8347a2 100644
--- a/examples/l3fwd-acl/main.c
+++ b/examples/l3fwd-acl/main.c
@@ -72,6 +72,9 @@
 #include <rte_string_fns.h>
 #include <rte_acl.h>
 
+#if RTE_LOG_LEVEL >= RTE_LOG_DEBUG
+#define L3FWDACL_DEBUG
+#endif
 #define DO_RFC_1812_CHECKS
 
 #define RTE_LOGTYPE_L3FWD RTE_LOGTYPE_USER1
diff --git a/examples/packet_ordering/main.c b/examples/packet_ordering/main.c
index 15bb900..3c88b86 100644
--- a/examples/packet_ordering/main.c
+++ b/examples/packet_ordering/main.c
@@ -55,17 +55,6 @@
 
 #define RING_SIZE 16384
 
-/* uncomment below line to enable debug logs */
-/* #define DEBUG */
-
-#ifdef DEBUG
-#define LOG_LEVEL RTE_LOG_DEBUG
-#define LOG_DEBUG(log_type, fmt, args...) RTE_LOG(DEBUG, log_type, fmt, ##args)
-#else
-#define LOG_LEVEL RTE_LOG_INFO
-#define LOG_DEBUG(log_type, fmt, args...) do {} while (0)
-#endif
-
 /* Macros for printing using RTE_LOG */
 #define RTE_LOGTYPE_REORDERAPP          RTE_LOGTYPE_USER1
 
@@ -240,7 +229,7 @@ flush_tx_error_callback(struct rte_mbuf **unsent, uint16_t count,
 
 	/* free the mbufs which failed from transmit */
 	app_stats.tx.ro_tx_failed_pkts += count;
-	LOG_DEBUG(REORDERAPP, "%s:Packet loss with tx_burst\n", __func__);
+	RTE_LOG(DEBUG, REORDERAPP, "%s:Packet loss with tx_burst\n", __func__);
 	pktmbuf_free_bulk(unsent, count);
 
 }
@@ -421,7 +410,7 @@ rx_thread(struct rte_ring *ring_out)
 				nb_rx_pkts = rte_eth_rx_burst(port_id, 0,
 								pkts, MAX_PKTS_BURST);
 				if (nb_rx_pkts == 0) {
-					LOG_DEBUG(REORDERAPP,
+					RTE_LOG(DEBUG, REORDERAPP,
 					"%s():Received zero packets\n",	__func__);
 					continue;
 				}
@@ -533,7 +522,8 @@ send_thread(struct send_thread_args *args)
 
 			if (ret == -1 && rte_errno == ERANGE) {
 				/* Too early pkts should be transmitted out directly */
-				LOG_DEBUG(REORDERAPP, "%s():Cannot reorder early packet "
+				RTE_LOG(DEBUG, REORDERAPP,
+						"%s():Cannot reorder early packet "
 						"direct enqueuing to TX\n", __func__);
 				outp = mbufs[i]->port;
 				if ((portmask & (1 << outp)) == 0) {
diff --git a/examples/tep_termination/main.c b/examples/tep_termination/main.c
index f97d552..9af030d 100644
--- a/examples/tep_termination/main.c
+++ b/examples/tep_termination/main.c
@@ -568,7 +568,7 @@ virtio_tx_route(struct vhost_dev *vdev, struct rte_mbuf *m)
 	const uint16_t lcore_id = rte_lcore_id();
 	struct virtio_net *dev = vdev->dev;
 
-	LOG_DEBUG(VHOST_DATA, "(%"PRIu64") TX: MAC address is external\n",
+	RTE_LOG(DEBUG, VHOST_DATA, "(%" PRIu64 ") TX: MAC address is external\n",
 		dev->device_fh);
 
 	/* Add packet to the port tx queue */
@@ -651,7 +651,7 @@ switch_worker(__rte_unused void *arg)
 		if (unlikely(diff_tsc > drain_tsc)) {
 
 			if (tx_q->len) {
-				LOG_DEBUG(VHOST_DATA, "TX queue drained after "
+				RTE_LOG(DEBUG, VHOST_DATA, "TX queue drained after "
 					"timeout with burst size %u\n",
 					tx_q->len);
 				ret = overlay_options.tx_handle(ports[0],
@@ -1220,9 +1220,6 @@ main(int argc, char *argv[])
 	for (queue_id = 0; queue_id < MAX_QUEUES + 1; queue_id++)
 		vpool_array[queue_id].pool = mbuf_pool;
 
-	/* Set log level. */
-	rte_set_log_level(LOG_LEVEL);
-
 	/* initialize all ports */
 	for (portid = 0; portid < nb_ports; portid++) {
 		/* skip ports that are not enabled */
diff --git a/examples/tep_termination/main.h b/examples/tep_termination/main.h
index a34301a..4b123ab 100644
--- a/examples/tep_termination/main.h
+++ b/examples/tep_termination/main.h
@@ -36,14 +36,6 @@
 
 #include <rte_ether.h>
 
-#ifdef DEBUG
-#define LOG_LEVEL RTE_LOG_DEBUG
-#define LOG_DEBUG(log_type, fmt, args...) RTE_LOG(DEBUG, log_type, fmt, ##args)
-#else
-#define LOG_LEVEL RTE_LOG_INFO
-#define LOG_DEBUG(log_type, fmt, args...) do {} while (0)
-#endif
-
 /* Macros for printing using RTE_LOG */
 #define RTE_LOGTYPE_VHOST_CONFIG RTE_LOGTYPE_USER1
 #define RTE_LOGTYPE_VHOST_DATA   RTE_LOGTYPE_USER2
diff --git a/examples/vhost/main.c b/examples/vhost/main.c
index 28c17af..78fd1ab 100644
--- a/examples/vhost/main.c
+++ b/examples/vhost/main.c
@@ -877,7 +877,7 @@ static unsigned check_ports_num(unsigned nb_ports)
  * Macro to print out packet contents. Wrapped in debug define so that the
  * data path is not effected when debug is disabled.
  */
-#ifdef DEBUG
+#if RTE_LOG_LEVEL >= RTE_LOG_DEBUG
 #define PRINT_PACKET(device, addr, size, header) do {																\
 	char *pkt_addr = (char*)(addr);																					\
 	unsigned int index;																								\
@@ -893,7 +893,7 @@ static unsigned check_ports_num(unsigned nb_ports)
 	}																												\
 	snprintf(packet + strnlen(packet, MAX_PRINT_BUFF), MAX_PRINT_BUFF - strnlen(packet, MAX_PRINT_BUFF), "\n");	\
 																													\
-	LOG_DEBUG(VHOST_DATA, "%s", packet);																					\
+	RTE_LOG(DEBUG, VHOST_DATA, "%s", packet);																					\
 } while(0)
 #else
 #define PRINT_PACKET(device, addr, size, header) do{} while(0)
@@ -927,7 +927,7 @@ gpa_to_hpa(struct vhost_dev  *vdev, uint64_t guest_pa,
 		}
 	}
 
-	LOG_DEBUG(VHOST_DATA, "(%"PRIu64") GPA %p| HPA %p\n",
+	RTE_LOG(DEBUG, VHOST_DATA, "(%" PRIu64 ") GPA %p| HPA %p\n",
 		vdev->dev->device_fh, (void *)(uintptr_t)guest_pa,
 		(void *)(uintptr_t)vhost_pa);
 
@@ -1059,18 +1059,22 @@ virtio_tx_local(struct vhost_dev *vdev, struct rte_mbuf *m)
 
 			/* Drop the packet if the TX packet is destined for the TX device. */
 			if (dev_ll->vdev->dev->device_fh == dev->device_fh) {
-				LOG_DEBUG(VHOST_DATA, "(%"PRIu64") TX: Source and destination MAC addresses are the same. Dropping packet.\n",
-							dev->device_fh);
+				RTE_LOG(DEBUG, VHOST_DATA, "(%" PRIu64 ") TX: "
+					"Source and destination MAC addresses are the same. "
+					"Dropping packet.\n",
+					dev->device_fh);
 				return 0;
 			}
 			tdev = dev_ll->vdev->dev;
 
 
-			LOG_DEBUG(VHOST_DATA, "(%"PRIu64") TX: MAC address is local\n", tdev->device_fh);
+			RTE_LOG(DEBUG, VHOST_DATA, "(%" PRIu64 ") TX: "
+				"MAC address is local\n", tdev->device_fh);
 
 			if (unlikely(dev_ll->vdev->remove)) {
 				/*drop the packet if the device is marked for removal*/
-				LOG_DEBUG(VHOST_DATA, "(%"PRIu64") Device is marked for removal\n", tdev->device_fh);
+				RTE_LOG(DEBUG, VHOST_DATA, "(%" PRIu64 ") "
+					"Device is marked for removal\n", tdev->device_fh);
 			} else {
 				/*send the packet to the local virtio device*/
 				ret = rte_vhost_enqueue_burst(tdev, VIRTIO_RXQ, &m, 1);
@@ -1114,7 +1118,7 @@ find_local_dest(struct virtio_net *dev, struct rte_mbuf *m,
 			 * destined for the TX device.
 			 */
 			if (dev_ll->vdev->dev->device_fh == dev->device_fh) {
-				LOG_DEBUG(VHOST_DATA,
+				RTE_LOG(DEBUG, VHOST_DATA,
 				"(%"PRIu64") TX: Source and destination"
 				" MAC addresses are the same. Dropping "
 				"packet.\n",
@@ -1132,7 +1136,7 @@ find_local_dest(struct virtio_net *dev, struct rte_mbuf *m,
 			(uint16_t)
 			vlan_tags[(uint16_t)dev_ll->vdev->dev->device_fh];
 
-			LOG_DEBUG(VHOST_DATA,
+			RTE_LOG(DEBUG, VHOST_DATA,
 			"(%"PRIu64") TX: pkt to local VM device id:"
 			"(%"PRIu64") vlan tag: %d.\n",
 			dev->device_fh, dev_ll->vdev->dev->device_fh,
@@ -1200,7 +1204,8 @@ virtio_tx_route(struct vhost_dev *vdev, struct rte_mbuf *m, uint16_t vlan_tag)
 		}
 	}
 
-	LOG_DEBUG(VHOST_DATA, "(%"PRIu64") TX: MAC address is external\n", dev->device_fh);
+	RTE_LOG(DEBUG, VHOST_DATA, "(%" PRIu64 ") TX: "
+		"MAC address is external\n", dev->device_fh);
 
 	/*Add packet to the port tx queue*/
 	tx_q = &lcore_tx_queue[lcore_id];
@@ -1310,7 +1315,9 @@ switch_worker(__attribute__((unused)) void *arg)
 		if (unlikely(diff_tsc > drain_tsc)) {
 
 			if (tx_q->len) {
-				LOG_DEBUG(VHOST_DATA, "TX queue drained after timeout with burst size %u \n", tx_q->len);
+				RTE_LOG(DEBUG, VHOST_DATA,
+					"TX queue drained after timeout with burst size %u\n",
+					tx_q->len);
 
 				/*Tx any packets in the queue*/
 				ret = rte_eth_tx_burst(ports[0], (uint16_t)tx_q->txq_id,
@@ -1444,7 +1451,7 @@ get_available_ring_index_zcp(struct virtio_net *dev,
 	avail_idx = *((volatile uint16_t *)&vq->avail->idx);
 	free_entries = (avail_idx - *res_base_idx);
 
-	LOG_DEBUG(VHOST_DATA, "(%"PRIu64") in get_available_ring_index_zcp: "
+	RTE_LOG(DEBUG, VHOST_DATA, "(%" PRIu64 ") in get_available_ring_index_zcp: "
 			"avail idx: %d, "
 			"res base idx:%d, free entries:%d\n",
 			dev->device_fh, avail_idx, *res_base_idx,
@@ -1469,7 +1476,7 @@ get_available_ring_index_zcp(struct virtio_net *dev,
 		count = free_entries;
 
 	if (unlikely(count == 0)) {
-		LOG_DEBUG(VHOST_DATA,
+		RTE_LOG(DEBUG, VHOST_DATA,
 			"(%"PRIu64") Fail in get_available_ring_index_zcp: "
 			"avail idx: %d, res base idx:%d, free entries:%d\n",
 			dev->device_fh, avail_idx,
@@ -1568,7 +1575,7 @@ attach_rxmbuf_zcp(struct virtio_net *dev)
 	rte_ring_sc_dequeue(vpool->ring, &obj);
 	mbuf = obj;
 	if (unlikely(mbuf == NULL)) {
-		LOG_DEBUG(VHOST_DATA,
+		RTE_LOG(DEBUG, VHOST_DATA,
 			"(%"PRIu64") in attach_rxmbuf_zcp: "
 			"ring_sc_dequeue fail.\n",
 			dev->device_fh);
@@ -1577,7 +1584,7 @@ attach_rxmbuf_zcp(struct virtio_net *dev)
 	}
 
 	if (unlikely(vpool->buf_size > desc->len)) {
-		LOG_DEBUG(VHOST_DATA,
+		RTE_LOG(DEBUG, VHOST_DATA,
 			"(%"PRIu64") in attach_rxmbuf_zcp: frame buffer "
 			"length(%d) of descriptor idx: %d less than room "
 			"size required: %d\n",
@@ -1593,7 +1600,7 @@ attach_rxmbuf_zcp(struct virtio_net *dev)
 	mbuf->data_len = desc->len;
 	MBUF_HEADROOM_UINT32(mbuf) = (uint32_t)desc_idx;
 
-	LOG_DEBUG(VHOST_DATA,
+	RTE_LOG(DEBUG, VHOST_DATA,
 		"(%"PRIu64") in attach_rxmbuf_zcp: res base idx:%d, "
 		"descriptor idx:%d\n",
 		dev->device_fh, res_base_idx, desc_idx);
@@ -1644,11 +1651,11 @@ txmbuf_clean_zcp(struct virtio_net *dev, struct vpool *vpool)
 	uint32_t index = 0;
 	uint32_t mbuf_count = rte_mempool_count(vpool->pool);
 
-	LOG_DEBUG(VHOST_DATA,
+	RTE_LOG(DEBUG, VHOST_DATA,
 		"(%"PRIu64") in txmbuf_clean_zcp: mbuf count in mempool before "
 		"clean is: %d\n",
 		dev->device_fh, mbuf_count);
-	LOG_DEBUG(VHOST_DATA,
+	RTE_LOG(DEBUG, VHOST_DATA,
 		"(%"PRIu64") in txmbuf_clean_zcp: mbuf count in  ring before "
 		"clean  is : %d\n",
 		dev->device_fh, rte_ring_count(vpool->ring));
@@ -1666,22 +1673,22 @@ txmbuf_clean_zcp(struct virtio_net *dev, struct vpool *vpool)
 		used_idx = (used_idx + 1) & (vq->size - 1);
 	}
 
-	LOG_DEBUG(VHOST_DATA,
+	RTE_LOG(DEBUG, VHOST_DATA,
 		"(%"PRIu64") in txmbuf_clean_zcp: mbuf count in mempool after "
 		"clean is: %d\n",
 		dev->device_fh, rte_mempool_count(vpool->pool));
-	LOG_DEBUG(VHOST_DATA,
+	RTE_LOG(DEBUG, VHOST_DATA,
 		"(%"PRIu64") in txmbuf_clean_zcp: mbuf count in  ring after "
 		"clean  is : %d\n",
 		dev->device_fh, rte_ring_count(vpool->ring));
-	LOG_DEBUG(VHOST_DATA,
+	RTE_LOG(DEBUG, VHOST_DATA,
 		"(%"PRIu64") in txmbuf_clean_zcp: before updated "
 		"vq->last_used_idx:%d\n",
 		dev->device_fh, vq->last_used_idx);
 
 	vq->last_used_idx += mbuf_count;
 
-	LOG_DEBUG(VHOST_DATA,
+	RTE_LOG(DEBUG, VHOST_DATA,
 		"(%"PRIu64") in txmbuf_clean_zcp: after updated "
 		"vq->last_used_idx:%d\n",
 		dev->device_fh, vq->last_used_idx);
@@ -1706,11 +1713,11 @@ static void mbuf_destroy_zcp(struct vpool *vpool)
 	struct rte_mbuf *mbuf = NULL;
 	uint32_t index, mbuf_count = rte_mempool_count(vpool->pool);
 
-	LOG_DEBUG(VHOST_CONFIG,
+	RTE_LOG(DEBUG, VHOST_CONFIG,
 		"in mbuf_destroy_zcp: mbuf count in mempool before "
 		"mbuf_destroy_zcp is: %d\n",
 		mbuf_count);
-	LOG_DEBUG(VHOST_CONFIG,
+	RTE_LOG(DEBUG, VHOST_CONFIG,
 		"in mbuf_destroy_zcp: mbuf count in  ring before "
 		"mbuf_destroy_zcp  is : %d\n",
 		rte_ring_count(vpool->ring));
@@ -1724,11 +1731,11 @@ static void mbuf_destroy_zcp(struct vpool *vpool)
 		}
 	}
 
-	LOG_DEBUG(VHOST_CONFIG,
+	RTE_LOG(DEBUG, VHOST_CONFIG,
 		"in mbuf_destroy_zcp: mbuf count in mempool after "
 		"mbuf_destroy_zcp is: %d\n",
 		rte_mempool_count(vpool->pool));
-	LOG_DEBUG(VHOST_CONFIG,
+	RTE_LOG(DEBUG, VHOST_CONFIG,
 		"in mbuf_destroy_zcp: mbuf count in ring after "
 		"mbuf_destroy_zcp is : %d\n",
 		rte_ring_count(vpool->ring));
@@ -1752,7 +1759,8 @@ virtio_dev_rx_zcp(struct virtio_net *dev, struct rte_mbuf **pkts,
 	uint32_t head_idx, packet_success = 0;
 	uint16_t res_cur_idx;
 
-	LOG_DEBUG(VHOST_DATA, "(%"PRIu64") virtio_dev_rx()\n", dev->device_fh);
+	RTE_LOG(DEBUG, VHOST_DATA, "(%" PRIu64 ") virtio_dev_rx()\n",
+		dev->device_fh);
 
 	if (count == 0)
 		return 0;
@@ -1761,7 +1769,7 @@ virtio_dev_rx_zcp(struct virtio_net *dev, struct rte_mbuf **pkts,
 	count = (count > MAX_PKT_BURST) ? MAX_PKT_BURST : count;
 
 	res_cur_idx = vq->last_used_idx;
-	LOG_DEBUG(VHOST_DATA, "(%"PRIu64") Current Index %d| End Index %d\n",
+	RTE_LOG(DEBUG, VHOST_DATA, "(%" PRIu64 ") Current Index %d| End Index %d\n",
 		dev->device_fh, res_cur_idx, res_cur_idx + count);
 
 	/* Retrieve all of the head indexes first to avoid caching issues. */
@@ -1776,7 +1784,7 @@ virtio_dev_rx_zcp(struct virtio_net *dev, struct rte_mbuf **pkts,
 		desc = &vq->desc[head[packet_success]];
 
 		buff = pkts[packet_success];
-		LOG_DEBUG(VHOST_DATA,
+		RTE_LOG(DEBUG, VHOST_DATA,
 			"(%"PRIu64") in dev_rx_zcp: update the used idx for "
 			"pkt[%d] descriptor idx: %d\n",
 			dev->device_fh, packet_success,
@@ -1825,7 +1833,7 @@ virtio_dev_rx_zcp(struct virtio_net *dev, struct rte_mbuf **pkts,
 
 	rte_compiler_barrier();
 
-	LOG_DEBUG(VHOST_DATA,
+	RTE_LOG(DEBUG, VHOST_DATA,
 		"(%"PRIu64") in dev_rx_zcp: before update used idx: "
 		"vq.last_used_idx: %d, vq->used->idx: %d\n",
 		dev->device_fh, vq->last_used_idx, vq->used->idx);
@@ -1833,7 +1841,7 @@ virtio_dev_rx_zcp(struct virtio_net *dev, struct rte_mbuf **pkts,
 	*(volatile uint16_t *)&vq->used->idx += count;
 	vq->last_used_idx += count;
 
-	LOG_DEBUG(VHOST_DATA,
+	RTE_LOG(DEBUG, VHOST_DATA,
 		"(%"PRIu64") in dev_rx_zcp: after  update used idx: "
 		"vq.last_used_idx: %d, vq->used->idx: %d\n",
 		dev->device_fh, vq->last_used_idx, vq->used->idx);
@@ -1918,7 +1926,7 @@ virtio_tx_route_zcp(struct virtio_net *dev, struct rte_mbuf *m,
 	tx_q->m_table[len] = mbuf;
 	len++;
 
-	LOG_DEBUG(VHOST_DATA,
+	RTE_LOG(DEBUG, VHOST_DATA,
 		"(%"PRIu64") in tx_route_zcp: pkt: nb_seg: %d, next:%s\n",
 		dev->device_fh,
 		mbuf->nb_segs,
@@ -1980,7 +1988,8 @@ virtio_dev_tx_zcp(struct virtio_net *dev)
 	if (vq->last_used_idx_res == avail_idx)
 		return;
 
-	LOG_DEBUG(VHOST_DATA, "(%"PRIu64") virtio_dev_tx()\n", dev->device_fh);
+	RTE_LOG(DEBUG, VHOST_DATA, "(%" PRIu64 ") virtio_dev_tx()\n",
+		dev->device_fh);
 
 	/* Prefetch available ring to retrieve head indexes. */
 	rte_prefetch0(&vq->avail->ring[vq->last_used_idx_res & (vq->size - 1)]);
@@ -1992,7 +2001,7 @@ virtio_dev_tx_zcp(struct virtio_net *dev)
 	free_entries
 		= (free_entries > MAX_PKT_BURST) ? MAX_PKT_BURST : free_entries;
 
-	LOG_DEBUG(VHOST_DATA, "(%"PRIu64") Buffers available %d\n",
+	RTE_LOG(DEBUG, VHOST_DATA, "(%" PRIu64 ") Buffers available %d\n",
 		dev->device_fh, free_entries);
 
 	/* Retrieve all of the head indexes first to avoid caching issues. */
@@ -2129,7 +2138,7 @@ switch_worker_zcp(__attribute__((unused)) void *arg)
 				if (likely(!vdev->remove)) {
 					tx_q = &tx_queue_zcp[(uint16_t)vdev->vmdq_rx_q];
 					if (tx_q->len) {
-						LOG_DEBUG(VHOST_DATA,
+						RTE_LOG(DEBUG, VHOST_DATA,
 						"TX queue drained after timeout"
 						" with burst size %u\n",
 						tx_q->len);
@@ -2465,14 +2474,14 @@ destroy_device (volatile struct virtio_net *dev)
 
 		/* Stop the RX queue. */
 		if (rte_eth_dev_rx_queue_stop(ports[0], vdev->vmdq_rx_q) != 0) {
-			LOG_DEBUG(VHOST_CONFIG,
+			RTE_LOG(DEBUG, VHOST_CONFIG,
 				"(%"PRIu64") In destroy_device: Failed to stop "
 				"rx queue:%d\n",
 				dev->device_fh,
 				vdev->vmdq_rx_q);
 		}
 
-		LOG_DEBUG(VHOST_CONFIG,
+		RTE_LOG(DEBUG, VHOST_CONFIG,
 			"(%"PRIu64") in destroy_device: Start put mbuf in "
 			"mempool back to ring for RX queue: %d\n",
 			dev->device_fh, vdev->vmdq_rx_q);
@@ -2481,7 +2490,7 @@ destroy_device (volatile struct virtio_net *dev)
 
 		/* Stop the TX queue. */
 		if (rte_eth_dev_tx_queue_stop(ports[0], vdev->vmdq_rx_q) != 0) {
-			LOG_DEBUG(VHOST_CONFIG,
+			RTE_LOG(DEBUG, VHOST_CONFIG,
 				"(%"PRIu64") In destroy_device: Failed to "
 				"stop tx queue:%d\n",
 				dev->device_fh, vdev->vmdq_rx_q);
@@ -2489,7 +2498,7 @@ destroy_device (volatile struct virtio_net *dev)
 
 		vpool = &vpool_array[vdev->vmdq_rx_q + MAX_QUEUES];
 
-		LOG_DEBUG(VHOST_CONFIG,
+		RTE_LOG(DEBUG, VHOST_CONFIG,
 			"(%"PRIu64") destroy_device: Start put mbuf in mempool "
 			"back to ring for TX queue: %d, dev:(%"PRIu64")\n",
 			dev->device_fh, (vdev->vmdq_rx_q + MAX_QUEUES),
@@ -2513,14 +2522,14 @@ check_hpa_regions(uint64_t vva_start, uint64_t size)
 	uint32_t i, nregions = 0, page_size = getpagesize();
 	uint64_t cur_phys_addr = 0, next_phys_addr = 0;
 	if (vva_start % page_size) {
-		LOG_DEBUG(VHOST_CONFIG,
+		RTE_LOG(DEBUG, VHOST_CONFIG,
 			"in check_countinous: vva start(%p) mod page_size(%d) "
 			"has remainder\n",
 			(void *)(uintptr_t)vva_start, page_size);
 		return 0;
 	}
 	if (size % page_size) {
-		LOG_DEBUG(VHOST_CONFIG,
+		RTE_LOG(DEBUG, VHOST_CONFIG,
 			"in check_countinous: "
 			"size((%"PRIu64")) mod page_size(%d) has remainder\n",
 			size, page_size);
@@ -2533,13 +2542,13 @@ check_hpa_regions(uint64_t vva_start, uint64_t size)
 			(void *)(uintptr_t)(vva_start + i + page_size));
 		if ((cur_phys_addr + page_size) != next_phys_addr) {
 			++nregions;
-			LOG_DEBUG(VHOST_CONFIG,
+			RTE_LOG(DEBUG, VHOST_CONFIG,
 				"in check_continuous: hva addr:(%p) is not "
 				"continuous with hva addr:(%p), diff:%d\n",
 				(void *)(uintptr_t)(vva_start + (uint64_t)i),
 				(void *)(uintptr_t)(vva_start + (uint64_t)i
 				+ page_size), page_size);
-			LOG_DEBUG(VHOST_CONFIG,
+			RTE_LOG(DEBUG, VHOST_CONFIG,
 				"in check_continuous: hpa addr:(%p) is not "
 				"continuous with hpa addr:(%p), "
 				"diff:(%"PRIu64")\n",
@@ -2574,12 +2583,12 @@ fill_hpa_memory_regions(struct virtio_memory_regions_hpa *mem_region_hpa, struct
 		mem_region_hpa[regionidx_hpa].host_phys_addr_offset =
 			rte_mem_virt2phy((void *)(uintptr_t)(vva_start)) -
 			mem_region_hpa[regionidx_hpa].guest_phys_address;
-		LOG_DEBUG(VHOST_CONFIG,
+		RTE_LOG(DEBUG, VHOST_CONFIG,
 			"in fill_hpa_regions: guest phys addr start[%d]:(%p)\n",
 			regionidx_hpa,
 			(void *)(uintptr_t)
 			(mem_region_hpa[regionidx_hpa].guest_phys_address));
-		LOG_DEBUG(VHOST_CONFIG,
+		RTE_LOG(DEBUG, VHOST_CONFIG,
 			"in fill_hpa_regions: host  phys addr start[%d]:(%p)\n",
 			regionidx_hpa,
 			(void *)(uintptr_t)
@@ -2599,12 +2608,12 @@ fill_hpa_memory_regions(struct virtio_memory_regions_hpa *mem_region_hpa, struct
 					k + page_size;
 				mem_region_hpa[regionidx_hpa].memory_size
 					= k + page_size;
-				LOG_DEBUG(VHOST_CONFIG, "in fill_hpa_regions: guest "
+				RTE_LOG(DEBUG, VHOST_CONFIG, "in fill_hpa_regions: guest "
 					"phys addr end  [%d]:(%p)\n",
 					regionidx_hpa,
 					(void *)(uintptr_t)
 					(mem_region_hpa[regionidx_hpa].guest_phys_address_end));
-				LOG_DEBUG(VHOST_CONFIG,
+				RTE_LOG(DEBUG, VHOST_CONFIG,
 					"in fill_hpa_regions: guest phys addr "
 					"size [%d]:(%p)\n",
 					regionidx_hpa,
@@ -2616,12 +2625,12 @@ fill_hpa_memory_regions(struct virtio_memory_regions_hpa *mem_region_hpa, struct
 				mem_region_hpa[regionidx_hpa].host_phys_addr_offset =
 					next_phys_addr -
 					mem_region_hpa[regionidx_hpa].guest_phys_address;
-				LOG_DEBUG(VHOST_CONFIG, "in fill_hpa_regions: guest"
+				RTE_LOG(DEBUG, VHOST_CONFIG, "in fill_hpa_regions: guest"
 					" phys addr start[%d]:(%p)\n",
 					regionidx_hpa,
 					(void *)(uintptr_t)
 					(mem_region_hpa[regionidx_hpa].guest_phys_address));
-				LOG_DEBUG(VHOST_CONFIG,
+				RTE_LOG(DEBUG, VHOST_CONFIG,
 					"in fill_hpa_regions: host  phys addr "
 					"start[%d]:(%p)\n",
 					regionidx_hpa,
@@ -2636,11 +2645,11 @@ fill_hpa_memory_regions(struct virtio_memory_regions_hpa *mem_region_hpa, struct
 			= mem_region_hpa[regionidx_hpa].guest_phys_address
 			+ k + page_size;
 		mem_region_hpa[regionidx_hpa].memory_size = k + page_size;
-		LOG_DEBUG(VHOST_CONFIG, "in fill_hpa_regions: guest phys addr end  "
+		RTE_LOG(DEBUG, VHOST_CONFIG, "in fill_hpa_regions: guest phys addr end  "
 			"[%d]:(%p)\n", regionidx_hpa,
 			(void *)(uintptr_t)
 			(mem_region_hpa[regionidx_hpa].guest_phys_address_end));
-		LOG_DEBUG(VHOST_CONFIG, "in fill_hpa_regions: guest phys addr size "
+		RTE_LOG(DEBUG, VHOST_CONFIG, "in fill_hpa_regions: guest phys addr size "
 			"[%d]:(%p)\n", regionidx_hpa,
 			(void *)(uintptr_t)
 			(mem_region_hpa[regionidx_hpa].memory_size));
@@ -2730,12 +2739,12 @@ new_device (struct virtio_net *dev)
 
 		count_in_ring = rte_ring_count(vpool_array[index].ring);
 
-		LOG_DEBUG(VHOST_CONFIG,
+		RTE_LOG(DEBUG, VHOST_CONFIG,
 			"(%"PRIu64") in new_device: mbuf count in mempool "
 			"before attach is: %d\n",
 			dev->device_fh,
 			rte_mempool_count(vpool_array[index].pool));
-		LOG_DEBUG(VHOST_CONFIG,
+		RTE_LOG(DEBUG, VHOST_CONFIG,
 			"(%"PRIu64") in new_device: mbuf count in  ring "
 			"before attach  is : %d\n",
 			dev->device_fh, count_in_ring);
@@ -2746,12 +2755,12 @@ new_device (struct virtio_net *dev)
 		for (i = 0; i < count_in_ring; i++)
 			attach_rxmbuf_zcp(dev);
 
-		LOG_DEBUG(VHOST_CONFIG, "(%"PRIu64") in new_device: mbuf count in "
-			"mempool after attach is: %d\n",
+		RTE_LOG(DEBUG, VHOST_CONFIG, "(%" PRIu64 ") in new_device: "
+			"mbuf count in mempool after attach is: %d\n",
 			dev->device_fh,
 			rte_mempool_count(vpool_array[index].pool));
-		LOG_DEBUG(VHOST_CONFIG, "(%"PRIu64") in new_device: mbuf count in "
-			"ring after attach  is : %d\n",
+		RTE_LOG(DEBUG, VHOST_CONFIG, "(%" PRIu64 ") in new_device: "
+			"mbuf count in ring after attach  is : %d\n",
 			dev->device_fh,
 			rte_ring_count(vpool_array[index].ring));
 
@@ -2761,7 +2770,7 @@ new_device (struct virtio_net *dev)
 		if (rte_eth_dev_tx_queue_start(ports[0], vdev->vmdq_rx_q) != 0) {
 			struct vpool *vpool = &vpool_array[vdev->vmdq_rx_q];
 
-			LOG_DEBUG(VHOST_CONFIG,
+			RTE_LOG(DEBUG, VHOST_CONFIG,
 				"(%"PRIu64") In new_device: Failed to start "
 				"tx queue:%d\n",
 				dev->device_fh, vdev->vmdq_rx_q);
@@ -2775,7 +2784,7 @@ new_device (struct virtio_net *dev)
 		if (rte_eth_dev_rx_queue_start(ports[0], vdev->vmdq_rx_q) != 0) {
 			struct vpool *vpool = &vpool_array[vdev->vmdq_rx_q];
 
-			LOG_DEBUG(VHOST_CONFIG,
+			RTE_LOG(DEBUG, VHOST_CONFIG,
 				"(%"PRIu64") In new_device: Failed to start "
 				"rx queue:%d\n",
 				dev->device_fh, vdev->vmdq_rx_q);
@@ -2783,7 +2792,7 @@ new_device (struct virtio_net *dev)
 			/* Stop the TX queue. */
 			if (rte_eth_dev_tx_queue_stop(ports[0],
 				vdev->vmdq_rx_q) != 0) {
-				LOG_DEBUG(VHOST_CONFIG,
+				RTE_LOG(DEBUG, VHOST_CONFIG,
 					"(%"PRIu64") In new_device: Failed to "
 					"stop tx queue:%d\n",
 					dev->device_fh, vdev->vmdq_rx_q);
@@ -2919,11 +2928,11 @@ setup_mempool_tbl(int socket, uint32_t index, char *pool_name,
 				rte_align32pow2(nb_mbuf + 1),
 				socket, RING_F_SP_ENQ | RING_F_SC_DEQ);
 		if (likely(vpool_array[index].ring != NULL)) {
-			LOG_DEBUG(VHOST_CONFIG,
+			RTE_LOG(DEBUG, VHOST_CONFIG,
 				"in setup_mempool_tbl: mbuf count in "
 				"mempool is: %d\n",
 				rte_mempool_count(vpool_array[index].pool));
-			LOG_DEBUG(VHOST_CONFIG,
+			RTE_LOG(DEBUG, VHOST_CONFIG,
 				"in setup_mempool_tbl: mbuf count in "
 				"ring   is: %d\n",
 				rte_ring_count(vpool_array[index].ring));
@@ -3021,7 +3030,7 @@ main(int argc, char *argv[])
 		if (vm2vm_mode == VM2VM_HARDWARE) {
 			/* Enable VT loop back to let L2 switch to do it. */
 			vmdq_conf_default.rx_adv_conf.vmdq_rx_conf.enable_loop_back = 1;
-			LOG_DEBUG(VHOST_CONFIG,
+			RTE_LOG(DEBUG, VHOST_CONFIG,
 				"Enable loop back for L2 switch in vmdq.\n");
 		}
 	} else {
@@ -3059,12 +3068,10 @@ main(int argc, char *argv[])
 		if (vm2vm_mode == VM2VM_HARDWARE) {
 			/* Enable VT loop back to let L2 switch to do it. */
 			vmdq_conf_default.rx_adv_conf.vmdq_rx_conf.enable_loop_back = 1;
-			LOG_DEBUG(VHOST_CONFIG,
+			RTE_LOG(DEBUG, VHOST_CONFIG,
 				"Enable loop back for L2 switch in vmdq.\n");
 		}
 	}
-	/* Set log level. */
-	rte_set_log_level(LOG_LEVEL);
 
 	/* initialize all ports */
 	for (portid = 0; portid < nb_ports; portid++) {
@@ -3126,10 +3133,10 @@ main(int argc, char *argv[])
 						(void *)mbuf);
 			}
 
-			LOG_DEBUG(VHOST_CONFIG,
+			RTE_LOG(DEBUG, VHOST_CONFIG,
 				"in main: mbuf count in mempool at initial "
 				"is: %d\n", count_in_mempool);
-			LOG_DEBUG(VHOST_CONFIG,
+			RTE_LOG(DEBUG, VHOST_CONFIG,
 				"in main: mbuf count in  ring at initial  is :"
 				" %d\n",
 				rte_ring_count(vpool_array[index].ring));
diff --git a/examples/vhost/main.h b/examples/vhost/main.h
index d04e2be..4f5ccf5 100644
--- a/examples/vhost/main.h
+++ b/examples/vhost/main.h
@@ -34,18 +34,6 @@
 #ifndef _MAIN_H_
 #define _MAIN_H_
 
-//#define DEBUG
-
-#ifdef DEBUG
-#define LOG_LEVEL RTE_LOG_DEBUG
-#define LOG_DEBUG(log_type, fmt, args...) do {	\
-	RTE_LOG(DEBUG, log_type, fmt, ##args);		\
-} while (0)
-#else
-#define LOG_LEVEL RTE_LOG_INFO
-#define LOG_DEBUG(log_type, fmt, args...) do{} while(0)
-#endif
-
 /* Macros for printing using RTE_LOG */
 #define RTE_LOGTYPE_VHOST_CONFIG RTE_LOGTYPE_USER1
 #define RTE_LOGTYPE_VHOST_DATA   RTE_LOGTYPE_USER2
diff --git a/examples/vhost_xen/main.c b/examples/vhost_xen/main.c
index d83138d..8018677 100644
--- a/examples/vhost_xen/main.c
+++ b/examples/vhost_xen/main.c
@@ -507,32 +507,6 @@ static unsigned check_ports_num(unsigned nb_ports)
 }
 
 /*
- * Macro to print out packet contents. Wrapped in debug define so that the
- * data path is not effected when debug is disabled.
- */
-#ifdef DEBUG
-#define PRINT_PACKET(device, addr, size, header) do {																\
-	char *pkt_addr = (char*)(addr);																					\
-	unsigned int index;																								\
-	char packet[MAX_PRINT_BUFF];																					\
-																													\
-	if ((header))																									\
-		snprintf(packet, MAX_PRINT_BUFF, "(%"PRIu64") Header size %d: ", (device->device_fh), (size));				\
-	else																											\
-		snprintf(packet, MAX_PRINT_BUFF, "(%"PRIu64") Packet size %d: ", (device->device_fh), (size));				\
-	for (index = 0; index < (size); index++) {																		\
-		snprintf(packet + strnlen(packet, MAX_PRINT_BUFF), MAX_PRINT_BUFF - strnlen(packet, MAX_PRINT_BUFF),	\
-			"%02hhx ", pkt_addr[index]);																			\
-	}																												\
-	snprintf(packet + strnlen(packet, MAX_PRINT_BUFF), MAX_PRINT_BUFF - strnlen(packet, MAX_PRINT_BUFF), "\n");	\
-																													\
-	LOG_DEBUG(VHOST_DATA, "%s", packet);																					\
-} while(0)
-#else
-#define PRINT_PACKET(device, addr, size, header) do{} while(0)
-#endif
-
-/*
  * Function to convert guest physical addresses to vhost virtual addresses. This
  * is used to convert virtio buffer addresses.
  */
@@ -551,7 +525,7 @@ gpa_to_vva(struct virtio_net *dev, uint64_t guest_pa)
 			break;
 		}
 	}
-	LOG_DEBUG(VHOST_DATA, "(%"PRIu64") GPA %p| VVA %p\n",
+	RTE_LOG(DEBUG, VHOST_DATA, "(%" PRIu64 ") GPA %p| VVA %p\n",
 		dev->device_fh, (void*)(uintptr_t)guest_pa, (void*)(uintptr_t)vhost_va);
 
 	return vhost_va;
@@ -581,7 +555,7 @@ virtio_dev_rx(struct virtio_net *dev, struct rte_mbuf **pkts, uint32_t count)
 	uint8_t success = 0;
 	void *userdata;
 
-	LOG_DEBUG(VHOST_DATA, "(%"PRIu64") virtio_dev_rx()\n", dev->device_fh);
+	RTE_LOG(DEBUG, VHOST_DATA, "(%" PRIu64 ") virtio_dev_rx()\n", dev->device_fh);
 	vq = dev->virtqueue_rx;
 	count = (count > MAX_PKT_BURST) ? MAX_PKT_BURST : count;
 	/* As many data cores may want access to available buffers, they need to be reserved. */
@@ -606,7 +580,8 @@ virtio_dev_rx(struct virtio_net *dev, struct rte_mbuf **pkts, uint32_t count)
 									res_end_idx);
 	} while (unlikely(success == 0));
 	res_cur_idx = res_base_idx;
-	LOG_DEBUG(VHOST_DATA, "(%"PRIu64") Current Index %d| End Index %d\n", dev->device_fh, res_cur_idx, res_end_idx);
+	RTE_LOG(DEBUG, VHOST_DATA, "(%" PRIu64 ") Current Index %d| End Index %d\n",
+		dev->device_fh, res_cur_idx, res_end_idx);
 
 	/* Prefetch available ring to retrieve indexes. */
 	rte_prefetch0(&vq->avail->ring[res_cur_idx & (vq->size - 1)]);
@@ -800,17 +775,22 @@ virtio_tx_local(struct virtio_net *dev, struct rte_mbuf *m)
 
 			/* Drop the packet if the TX packet is destined for the TX device. */
 			if (dev_ll->dev->device_fh == dev->device_fh) {
-				LOG_DEBUG(VHOST_DATA, "(%"PRIu64") TX: Source and destination MAC addresses are the same. Dropping packet.\n",
-							dev_ll->dev->device_fh);
+				RTE_LOG(DEBUG, VHOST_DATA, "(%" PRIu64 ") TX: "
+					"Source and destination MAC addresses are the same. "
+					"Dropping packet.\n",
+					dev_ll->dev->device_fh);
 				return 0;
 			}
 
 
-			LOG_DEBUG(VHOST_DATA, "(%"PRIu64") TX: MAC address is local\n", dev_ll->dev->device_fh);
+			RTE_LOG(DEBUG, VHOST_DATA, "(%" PRIu64 ") TX: "
+				"MAC address is local\n", dev_ll->dev->device_fh);
 
 			if (dev_ll->dev->remove) {
 				/*drop the packet if the device is marked for removal*/
-				LOG_DEBUG(VHOST_DATA, "(%"PRIu64") Device is marked for removal\n", dev_ll->dev->device_fh);
+				RTE_LOG(DEBUG, VHOST_DATA, "(%" PRIu64 ") "
+					"Device is marked for removal\n",
+					dev_ll->dev->device_fh);
 			} else {
 				/*send the packet to the local virtio device*/
 				ret = virtio_dev_rx(dev_ll->dev, &m, 1);
@@ -849,7 +829,8 @@ virtio_tx_route(struct virtio_net* dev, struct rte_mbuf *m, struct rte_mempool *
 		return;
 	}
 
-	LOG_DEBUG(VHOST_DATA, "(%"PRIu64") TX: MAC address is external\n", dev->device_fh);
+	RTE_LOG(DEBUG, VHOST_DATA, "(%" PRIu64 ") TX: "
+		"MAC address is external\n", dev->device_fh);
 
 	/*Add packet to the port tx queue*/
 	tx_q = &lcore_tx_queue[lcore_id];
@@ -922,7 +903,8 @@ virtio_dev_tx(struct virtio_net* dev, struct rte_mempool *mbuf_pool)
 	if (vq->last_used_idx == avail_idx)
 		return;
 
-	LOG_DEBUG(VHOST_DATA, "(%"PRIu64") virtio_dev_tx()\n", dev->device_fh);
+	RTE_LOG(DEBUG, VHOST_DATA, "(%" PRIu64 ") virtio_dev_tx()\n",
+		dev->device_fh);
 
 	/* Prefetch available ring to retrieve head indexes. */
 	rte_prefetch0(&vq->avail->ring[vq->last_used_idx & (vq->size - 1)]);
@@ -931,7 +913,8 @@ virtio_dev_tx(struct virtio_net* dev, struct rte_mempool *mbuf_pool)
 	free_entries = avail_idx - vq->last_used_idx;
 	free_entries = unlikely(free_entries < MAX_PKT_BURST) ? free_entries : MAX_PKT_BURST;
 
-	LOG_DEBUG(VHOST_DATA, "(%"PRIu64") Buffers available %d\n", dev->device_fh, free_entries);
+	RTE_LOG(DEBUG, VHOST_DATA, "(%" PRIu64 ") Buffers available %d\n",
+		dev->device_fh, free_entries);
 	/* Retrieve all of the head indexes first to avoid caching issues. */
 	for (i = 0; i < free_entries; i++)
 		head[i] = vq->avail->ring[(vq->last_used_idx + i) & (vq->size - 1)];
@@ -1020,7 +1003,9 @@ switch_worker(__attribute__((unused)) void *arg)
 		if (unlikely(diff_tsc > drain_tsc)) {
 
 			if (tx_q->len) {
-				LOG_DEBUG(VHOST_DATA, "TX queue drained after timeout with burst size %u \n", tx_q->len);
+				RTE_LOG(DEBUG, VHOST_DATA,
+					"TX queue drained after timeout with burst size %u\n",
+					tx_q->len);
 
 				/*Tx any packets in the queue*/
 				ret = rte_eth_tx_burst(ports[0], (uint16_t)tx_q->txq_id,
@@ -1482,9 +1467,6 @@ main(int argc, char *argv[])
 	if (mbuf_pool == NULL)
 		rte_exit(EXIT_FAILURE, "Cannot create mbuf pool\n");
 
-	/* Set log level. */
-	rte_set_log_level(LOG_LEVEL);
-
 	/* initialize all ports */
 	for (portid = 0; portid < nb_ports; portid++) {
 		/* skip ports that are not enabled */
diff --git a/examples/vhost_xen/main.h b/examples/vhost_xen/main.h
index 481572e..5ff48fd 100644
--- a/examples/vhost_xen/main.h
+++ b/examples/vhost_xen/main.h
@@ -34,17 +34,6 @@
 #ifndef _MAIN_H_
 #define _MAIN_H_
 
-//#define DEBUG
-
-#ifdef DEBUG
-#define LOG_LEVEL RTE_LOG_DEBUG
-#define LOG_DEBUG(log_type, fmt, args...) \
-	RTE_LOG(DEBUG, log_type, fmt, ##args)
-#else
-#define LOG_LEVEL RTE_LOG_INFO
-#define LOG_DEBUG(log_type, fmt, args...) do{} while(0)
-#endif
-
 /* Macros for printing using RTE_LOG */
 #define RTE_LOGTYPE_VHOST_CONFIG RTE_LOGTYPE_USER1
 #define RTE_LOGTYPE_VHOST_DATA   RTE_LOGTYPE_USER2
-- 
2.7.0



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