From: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Date: Wed, 1 Oct 2014 09:49:05 +0000 (+0100)
Subject: examples: use factorized default Rx/Tx configuration
X-Git-Tag: spdx-start~10309
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=81f7ecd934372fc9f592d1322f8eff86350fa4f5;p=dpdk.git

examples: use factorized default Rx/Tx configuration

For apps that were using default rte_eth_rxconf and rte_eth_txconf
structures, these have been removed and now they are obtained by
calling rte_eth_dev_info_get, just before setting up RX/TX queues.

Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Acked-by: David Marchand <david.marchand@6wind.com>
---

diff --git a/examples/dpdk_qat/main.c b/examples/dpdk_qat/main.c
index c130ea3249..59a97bc483 100644
--- a/examples/dpdk_qat/main.c
+++ b/examples/dpdk_qat/main.c
@@ -75,25 +75,6 @@
 #define MBUF_SIZE (2048 + sizeof(struct rte_mbuf) + RTE_PKTMBUF_HEADROOM)
 #define NB_MBUF   (32 * 1024)
 
-/*
- * RX and TX Prefetch, Host, and Write-back threshold values should be
- * carefully set for optimal performance. Consult the network
- * controller's datasheet and supporting DPDK documentation for guidance
- * on how these parameters should be set.
- */
-#define RX_PTHRESH 8 /**< Default values of RX prefetch threshold reg. */
-#define RX_HTHRESH 8 /**< Default values of RX host threshold reg. */
-#define RX_WTHRESH 4 /**< Default values of RX write-back threshold reg. */
-
-/*
- * These default values are optimized for use with the Intel(R) 82599 10 GbE
- * Controller and the DPDK ixgbe PMD. Consider using other values for other
- * network controllers and/or network drivers.
- */
-#define TX_PTHRESH 36 /**< Default values of TX prefetch threshold reg. */
-#define TX_HTHRESH 0  /**< Default values of TX host threshold reg. */
-#define TX_WTHRESH 0  /**< Default values of TX write-back threshold reg. */
-
 #define MAX_PKT_BURST 32
 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
 
@@ -178,24 +159,6 @@ static struct rte_eth_conf port_conf = {
 	},
 };
 
-static const struct rte_eth_rxconf rx_conf = {
-	.rx_thresh = {
-		.pthresh = RX_PTHRESH,
-		.hthresh = RX_HTHRESH,
-		.wthresh = RX_WTHRESH,
-	},
-};
-
-static const struct rte_eth_txconf tx_conf = {
-	.tx_thresh = {
-		.pthresh = TX_PTHRESH,
-		.hthresh = TX_HTHRESH,
-		.wthresh = TX_WTHRESH,
-	},
-	.tx_free_thresh = 0, /* Use PMD default values */
-	.tx_rs_thresh = 0, /* Use PMD default values */
-};
-
 static struct rte_mempool * pktmbuf_pool[RTE_MAX_NUMA_NODES];
 
 struct lcore_conf {
@@ -782,7 +745,8 @@ MAIN(int argc, char **argv)
 			printf("txq=%u,%d,%d ", lcoreid, queueid, socketid);
 			fflush(stdout);
 			ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
-						     socketid, &tx_conf);
+					socketid,
+					NULL);
 			if (ret < 0)
 				rte_panic("rte_eth_tx_queue_setup: err=%d, "
 					"port=%d\n", ret, portid);
@@ -807,7 +771,9 @@ MAIN(int argc, char **argv)
 			fflush(stdout);
 
 			ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,
-				        socketid, &rx_conf, pktmbuf_pool[socketid]);
+					socketid,
+					NULL,
+					pktmbuf_pool[socketid]);
 			if (ret < 0)
 				rte_panic("rte_eth_rx_queue_setup: err=%d,"
 						"port=%d\n", ret, portid);
diff --git a/examples/exception_path/main.c b/examples/exception_path/main.c
index b4859764ad..3f8b1fb896 100644
--- a/examples/exception_path/main.c
+++ b/examples/exception_path/main.c
@@ -109,31 +109,6 @@
  * controller's datasheet and supporting DPDK documentation for guidance
  * on how these parameters should be set.
  */
-/* RX ring configuration */
-static const struct rte_eth_rxconf rx_conf = {
-	.rx_thresh = {
-		.pthresh = 8,   /* Ring prefetch threshold */
-		.hthresh = 8,   /* Ring host threshold */
-		.wthresh = 4,   /* Ring writeback threshold */
-	},
-	.rx_free_thresh = 0,    /* Immediately free RX descriptors */
-};
-
-/*
- * These default values are optimized for use with the Intel(R) 82599 10 GbE
- * Controller and the DPDK ixgbe PMD. Consider using other values for other
- * network controllers and/or network drivers.
- */
-/* TX ring configuration */
-static const struct rte_eth_txconf tx_conf = {
-	.tx_thresh = {
-		.pthresh = 36,  /* Ring prefetch threshold */
-		.hthresh = 0,   /* Ring host threshold */
-		.wthresh = 0,   /* Ring writeback threshold */
-	},
-	.tx_free_thresh = 0,    /* Use PMD default values */
-	.tx_rs_thresh = 0,      /* Use PMD default values */
-};
 
 /* Options for configuring ethernet port */
 static const struct rte_eth_conf port_conf = {
@@ -461,13 +436,14 @@ init_port(uint8_t port)
 		            (unsigned)port, ret);
 
 	ret = rte_eth_rx_queue_setup(port, 0, NB_RXD, rte_eth_dev_socket_id(port),
-                                 &rx_conf, pktmbuf_pool);
+				NULL,
+				pktmbuf_pool);
 	if (ret < 0)
 		FATAL_ERROR("Could not setup up RX queue for port%u (%d)",
 		            (unsigned)port, ret);
 
 	ret = rte_eth_tx_queue_setup(port, 0, NB_TXD, rte_eth_dev_socket_id(port),
-                                 &tx_conf);
+				NULL);
 	if (ret < 0)
 		FATAL_ERROR("Could not setup up TX queue for port%u (%d)",
 		            (unsigned)port, ret);
diff --git a/examples/ip_fragmentation/main.c b/examples/ip_fragmentation/main.c
index 75028aca98..65c4cf6849 100644
--- a/examples/ip_fragmentation/main.c
+++ b/examples/ip_fragmentation/main.c
@@ -106,25 +106,6 @@
 
 #define NB_MBUF   8192
 
-/*
- * RX and TX Prefetch, Host, and Write-back threshold values should be
- * carefully set for optimal performance. Consult the network
- * controller's datasheet and supporting DPDK documentation for guidance
- * on how these parameters should be set.
- */
-#define RX_PTHRESH 8 /**< Default values of RX prefetch threshold reg. */
-#define RX_HTHRESH 8 /**< Default values of RX host threshold reg. */
-#define RX_WTHRESH 4 /**< Default values of RX write-back threshold reg. */
-
-/*
- * These default values are optimized for use with the Intel(R) 82599 10 GbE
- * Controller and the DPDK ixgbe PMD. Consider using other values for other
- * network controllers and/or network drivers.
- */
-#define TX_PTHRESH 36 /**< Default values of TX prefetch threshold reg. */
-#define TX_HTHRESH 0  /**< Default values of TX host threshold reg. */
-#define TX_WTHRESH 0  /**< Default values of TX write-back threshold reg. */
-
 #define MAX_PKT_BURST	32
 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
 
@@ -208,24 +189,6 @@ static const struct rte_eth_conf port_conf = {
 	},
 };
 
-static const struct rte_eth_rxconf rx_conf = {
-	.rx_thresh = {
-		.pthresh = RX_PTHRESH,
-		.hthresh = RX_HTHRESH,
-		.wthresh = RX_WTHRESH,
-	},
-};
-
-static const struct rte_eth_txconf tx_conf = {
-	.tx_thresh = {
-		.pthresh = TX_PTHRESH,
-		.hthresh = TX_HTHRESH,
-		.wthresh = TX_WTHRESH,
-	},
-	.tx_free_thresh = 0, /* Use PMD default values */
-	.tx_rs_thresh = 0, /* Use PMD default values */
-};
-
 /*
  * IPv4 forwarding table
  */
@@ -851,6 +814,8 @@ int
 MAIN(int argc, char **argv)
 {
 	struct lcore_queue_conf *qconf;
+	struct rte_eth_dev_info dev_info;
+	struct rte_eth_txconf *txconf;
 	struct rx_queue *rxq;
 	int socket, ret;
 	unsigned nb_ports;
@@ -939,7 +904,7 @@ MAIN(int argc, char **argv)
 
 		/* init one RX queue */
 		ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
-					     socket, &rx_conf,
+					     socket, NULL,
 					     socket_direct_pool[socket]);
 		if (ret < 0) {
 			printf("\n");
@@ -961,8 +926,12 @@ MAIN(int argc, char **argv)
 			socket = (int) rte_lcore_to_socket_id(lcore_id);
 			printf("txq=%u,%d ", lcore_id, queueid);
 			fflush(stdout);
+
+			rte_eth_dev_info_get(portid, &dev_info);
+			txconf = &dev_info.default_txconf;
+			txconf->txq_flags = 0;
 			ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
-						     socket, &tx_conf);
+						     socket, txconf);
 			if (ret < 0) {
 				printf("\n");
 				rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup: "
diff --git a/examples/ip_reassembly/main.c b/examples/ip_reassembly/main.c
index 9ba3f0a667..0d92b3caf6 100644
--- a/examples/ip_reassembly/main.c
+++ b/examples/ip_reassembly/main.c
@@ -114,25 +114,6 @@
 static uint32_t max_flow_num = DEF_FLOW_NUM;
 static uint32_t max_flow_ttl = DEF_FLOW_TTL;
 
-/*
- * RX and TX Prefetch, Host, and Write-back threshold values should be
- * carefully set for optimal performance. Consult the network
- * controller's datasheet and supporting DPDK documentation for guidance
- * on how these parameters should be set.
- */
-#define RX_PTHRESH 8 /**< Default values of RX prefetch threshold reg. */
-#define RX_HTHRESH 8 /**< Default values of RX host threshold reg. */
-#define RX_WTHRESH 4 /**< Default values of RX write-back threshold reg. */
-
-/*
- * These default values are optimized for use with the Intel(R) 82599 10 GbE
- * Controller and the DPDK ixgbe PMD. Consider using other values for other
- * network controllers and/or network drivers.
- */
-#define TX_PTHRESH 36 /**< Default values of TX prefetch threshold reg. */
-#define TX_HTHRESH 0  /**< Default values of TX host threshold reg. */
-#define TX_WTHRESH 0  /**< Default values of TX write-back threshold reg. */
-
 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
 
 #define NB_SOCKETS 8
@@ -236,26 +217,6 @@ static struct rte_eth_conf port_conf = {
 	},
 };
 
-static const struct rte_eth_rxconf rx_conf = {
-	.rx_thresh = {
-		.pthresh = RX_PTHRESH,
-		.hthresh = RX_HTHRESH,
-		.wthresh = RX_WTHRESH,
-	},
-	.rx_free_thresh = 32,
-};
-
-static const struct rte_eth_txconf tx_conf = {
-	.tx_thresh = {
-		.pthresh = TX_PTHRESH,
-		.hthresh = TX_HTHRESH,
-		.wthresh = TX_WTHRESH,
-	},
-	.tx_free_thresh = 0, /* Use PMD default values */
-	.tx_rs_thresh = 0, /* Use PMD default values */
-	.txq_flags = 0x0,
-};
-
 /*
  * IPv4 forwarding table
  */
@@ -1058,6 +1019,8 @@ int
 MAIN(int argc, char **argv)
 {
 	struct lcore_queue_conf *qconf;
+	struct rte_eth_dev_info dev_info;
+	struct rte_eth_txconf *txconf;
 	struct rx_queue *rxq;
 	int ret, socket;
 	unsigned nb_ports;
@@ -1146,7 +1109,7 @@ MAIN(int argc, char **argv)
 
 		/* init one RX queue */
 		ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
-					     socket, &rx_conf,
+					     socket, NULL,
 					     rxq->pool);
 		if (ret < 0) {
 			printf("\n");
@@ -1169,8 +1132,13 @@ MAIN(int argc, char **argv)
 
 			printf("txq=%u,%d,%d ", lcore_id, queueid, socket);
 			fflush(stdout);
+
+			rte_eth_dev_info_get(portid, &dev_info);
+			txconf = &dev_info.default_txconf;
+			txconf->txq_flags = 0;
+
 			ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
-					socket, &tx_conf);
+					socket, txconf);
 			if (ret < 0)
 				rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup: err=%d, "
 					"port=%d\n", ret, portid);
diff --git a/examples/ipv4_multicast/main.c b/examples/ipv4_multicast/main.c
index 5c2ab8691c..de5e6be21e 100644
--- a/examples/ipv4_multicast/main.c
+++ b/examples/ipv4_multicast/main.c
@@ -92,25 +92,6 @@
 /* allow max jumbo frame 9.5 KB */
 #define	JUMBO_FRAME_MAX_SIZE	0x2600
 
-/*
- * RX and TX Prefetch, Host, and Write-back threshold values should be
- * carefully set for optimal performance. Consult the network
- * controller's datasheet and supporting DPDK documentation for guidance
- * on how these parameters should be set.
- */
-#define RX_PTHRESH 8 /**< Default values of RX prefetch threshold reg. */
-#define RX_HTHRESH 8 /**< Default values of RX host threshold reg. */
-#define RX_WTHRESH 4 /**< Default values of RX write-back threshold reg. */
-
-/*
- * These default values are optimized for use with the Intel(R) 82599 10 GbE
- * Controller and the DPDK ixgbe PMD. Consider using other values for other
- * network controllers and/or network drivers.
- */
-#define TX_PTHRESH 36 /**< Default values of TX prefetch threshold reg. */
-#define TX_HTHRESH 0  /**< Default values of TX host threshold reg. */
-#define TX_WTHRESH 0  /**< Default values of TX write-back threshold reg. */
-
 #define MAX_PKT_BURST 32
 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
 
@@ -176,24 +157,6 @@ static const struct rte_eth_conf port_conf = {
 	},
 };
 
-static const struct rte_eth_rxconf rx_conf = {
-	.rx_thresh = {
-		.pthresh = RX_PTHRESH,
-		.hthresh = RX_HTHRESH,
-		.wthresh = RX_WTHRESH,
-	},
-};
-
-static const struct rte_eth_txconf tx_conf = {
-	.tx_thresh = {
-		.pthresh = TX_PTHRESH,
-		.hthresh = TX_HTHRESH,
-		.wthresh = TX_WTHRESH,
-	},
-	.tx_free_thresh = 0, /* Use PMD default values */
-	.tx_rs_thresh = 0, /* Use PMD default values */
-};
-
 static struct rte_mempool *packet_pool, *header_pool, *clone_pool;
 
 
@@ -713,6 +676,8 @@ int
 MAIN(int argc, char **argv)
 {
 	struct lcore_queue_conf *qconf;
+	struct rte_eth_dev_info dev_info;
+	struct rte_eth_txconf *txconf;
 	int ret;
 	uint16_t queueid;
 	unsigned lcore_id = 0, rx_lcore_id = 0;
@@ -808,7 +773,8 @@ MAIN(int argc, char **argv)
 		printf("rxq=%hu ", queueid);
 		fflush(stdout);
 		ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,
-					     rte_eth_dev_socket_id(portid), &rx_conf,
+					     rte_eth_dev_socket_id(portid),
+					     NULL,
 					     packet_pool);
 		if (ret < 0)
 			rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup: err=%d, port=%d\n",
@@ -822,8 +788,12 @@ MAIN(int argc, char **argv)
 				continue;
 			printf("txq=%u,%hu ", lcore_id, queueid);
 			fflush(stdout);
+
+			rte_eth_dev_info_get(portid, &dev_info);
+			txconf = &dev_info.default_txconf;
+			txconf->txq_flags = 0;
 			ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
-						     rte_lcore_to_socket_id(lcore_id), &tx_conf);
+						     rte_lcore_to_socket_id(lcore_id), txconf);
 			if (ret < 0)
 				rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup: err=%d, "
 					  "port=%d\n", ret, portid);
diff --git a/examples/kni/main.c b/examples/kni/main.c
index 69d1ef21d3..cb17b43157 100644
--- a/examples/kni/main.c
+++ b/examples/kni/main.c
@@ -125,36 +125,6 @@ struct kni_port_params {
 
 static struct kni_port_params *kni_port_params_array[RTE_MAX_ETHPORTS];
 
-/* RX and TX Prefetch, Host, and Write-back threshold values should be
- * carefully set for optimal performance. Consult the network
- * controller's datasheet and supporting DPDK documentation for guidance
- * on how these parameters should be set.
- */
-/* RX ring configuration */
-static const struct rte_eth_rxconf rx_conf = {
-	.rx_thresh = {
-		.pthresh = 8,   /* Ring prefetch threshold */
-		.hthresh = 8,   /* Ring host threshold */
-		.wthresh = 4,   /* Ring writeback threshold */
-	},
-	.rx_free_thresh = 0,    /* Immediately free RX descriptors */
-};
-
-/*
- * These default values are optimized for use with the Intel(R) 82599 10 GbE
- * Controller and the DPDK ixgbe PMD. Consider using other values for other
- * network controllers and/or network drivers.
- */
-/* TX ring configuration */
-static const struct rte_eth_txconf tx_conf = {
-	.tx_thresh = {
-		.pthresh = 36,  /* Ring prefetch threshold */
-		.hthresh = 0,   /* Ring host threshold */
-		.wthresh = 0,   /* Ring writeback threshold */
-	},
-	.tx_free_thresh = 0,    /* Use PMD default values */
-	.tx_rs_thresh = 0,      /* Use PMD default values */
-};
 
 /* Options for configuring ethernet port */
 static struct rte_eth_conf port_conf = {
@@ -631,13 +601,13 @@ init_port(uint8_t port)
 		            (unsigned)port, ret);
 
 	ret = rte_eth_rx_queue_setup(port, 0, NB_RXD,
-		rte_eth_dev_socket_id(port), &rx_conf, pktmbuf_pool);
+		rte_eth_dev_socket_id(port), NULL, pktmbuf_pool);
 	if (ret < 0)
 		rte_exit(EXIT_FAILURE, "Could not setup up RX queue for "
 				"port%u (%d)\n", (unsigned)port, ret);
 
 	ret = rte_eth_tx_queue_setup(port, 0, NB_TXD,
-		rte_eth_dev_socket_id(port), &tx_conf);
+		rte_eth_dev_socket_id(port), NULL);
 	if (ret < 0)
 		rte_exit(EXIT_FAILURE, "Could not setup up TX queue for "
 				"port%u (%d)\n", (unsigned)port, ret);
diff --git a/examples/l2fwd-ivshmem/host/host.c b/examples/l2fwd-ivshmem/host/host.c
index 1800b3a19b..4f8d23edb0 100644
--- a/examples/l2fwd-ivshmem/host/host.c
+++ b/examples/l2fwd-ivshmem/host/host.c
@@ -63,25 +63,6 @@
 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
 
-/*
- * RX and TX Prefetch, Host, and Write-back threshold values should be
- * carefully set for optimal performance. Consult the network
- * controller's datasheet and supporting DPDK documentation for guidance
- * on how these parameters should be set.
- */
-#define RX_PTHRESH 8 /**< Default values of RX prefetch threshold reg. */
-#define RX_HTHRESH 8 /**< Default values of RX host threshold reg. */
-#define RX_WTHRESH 4 /**< Default values of RX write-back threshold reg. */
-
-/*
- * These default values are optimized for use with the Intel(R) 82599 10 GbE
- * Controller and the DPDK ixgbe PMD. Consider using other values for other
- * network controllers and/or network drivers.
- */
-#define TX_PTHRESH 36 /**< Default values of TX prefetch threshold reg. */
-#define TX_HTHRESH 0  /**< Default values of TX host threshold reg. */
-#define TX_WTHRESH 0  /**< Default values of TX write-back threshold reg. */
-
 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
 
 /* mask of enabled ports */
@@ -117,24 +98,6 @@ static const struct rte_eth_conf port_conf = {
 	},
 };
 
-static const struct rte_eth_rxconf rx_conf = {
-	.rx_thresh = {
-		.pthresh = RX_PTHRESH,
-		.hthresh = RX_HTHRESH,
-		.wthresh = RX_WTHRESH,
-	},
-};
-
-static const struct rte_eth_txconf tx_conf = {
-	.tx_thresh = {
-		.pthresh = TX_PTHRESH,
-		.hthresh = TX_HTHRESH,
-		.wthresh = TX_WTHRESH,
-	},
-	.tx_free_thresh = 0, /* Use PMD default values */
-	.tx_rs_thresh = 0, /* Use PMD default values */
-};
-
 #define METADATA_NAME "l2fwd_ivshmem"
 #define CMDLINE_OPT_FWD_CONF "fwd-conf"
 
@@ -789,7 +752,8 @@ int main(int argc, char **argv)
 		/* init one RX queue */
 		fflush(stdout);
 		ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
-						 rte_eth_dev_socket_id(portid), &rx_conf,
+						 rte_eth_dev_socket_id(portid),
+						 NULL,
 						 l2fwd_ivshmem_pktmbuf_pool);
 		if (ret < 0)
 			rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup:err=%d, port=%u\n",
@@ -798,7 +762,8 @@ int main(int argc, char **argv)
 		/* init one TX queue on each port */
 		fflush(stdout);
 		ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
-				rte_eth_dev_socket_id(portid), &tx_conf);
+				rte_eth_dev_socket_id(portid),
+				NULL);
 		if (ret < 0)
 			rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup:err=%d, port=%u\n",
 				ret, (unsigned) portid);
diff --git a/examples/l2fwd/main.c b/examples/l2fwd/main.c
index e16c9149f9..24484b5ecf 100644
--- a/examples/l2fwd/main.c
+++ b/examples/l2fwd/main.c
@@ -77,25 +77,6 @@
 #define MBUF_SIZE (2048 + sizeof(struct rte_mbuf) + RTE_PKTMBUF_HEADROOM)
 #define NB_MBUF   8192
 
-/*
- * RX and TX Prefetch, Host, and Write-back threshold values should be
- * carefully set for optimal performance. Consult the network
- * controller's datasheet and supporting DPDK documentation for guidance
- * on how these parameters should be set.
- */
-#define RX_PTHRESH 8 /**< Default values of RX prefetch threshold reg. */
-#define RX_HTHRESH 8 /**< Default values of RX host threshold reg. */
-#define RX_WTHRESH 4 /**< Default values of RX write-back threshold reg. */
-
-/*
- * These default values are optimized for use with the Intel(R) 82599 10 GbE
- * Controller and the DPDK ixgbe PMD. Consider using other values for other
- * network controllers and/or network drivers.
- */
-#define TX_PTHRESH 36 /**< Default values of TX prefetch threshold reg. */
-#define TX_HTHRESH 0  /**< Default values of TX host threshold reg. */
-#define TX_WTHRESH 0  /**< Default values of TX write-back threshold reg. */
-
 #define MAX_PKT_BURST 32
 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
 
@@ -147,29 +128,6 @@ static const struct rte_eth_conf port_conf = {
 	},
 };
 
-static const struct rte_eth_rxconf rx_conf = {
-	.rx_thresh = {
-		.pthresh = RX_PTHRESH,
-		.hthresh = RX_HTHRESH,
-		.wthresh = RX_WTHRESH,
-	},
-};
-
-static const struct rte_eth_txconf tx_conf = {
-	.tx_thresh = {
-		.pthresh = TX_PTHRESH,
-		.hthresh = TX_HTHRESH,
-		.wthresh = TX_WTHRESH,
-	},
-	.tx_free_thresh = 0, /* Use PMD default values */
-	.tx_rs_thresh = 0, /* Use PMD default values */
-	/*
-	* As the example won't handle mult-segments and offload cases,
-	* set the flag by default.
-	*/
-	.txq_flags = ETH_TXQ_FLAGS_NOMULTSEGS | ETH_TXQ_FLAGS_NOOFFLOADS,
-};
-
 struct rte_mempool * l2fwd_pktmbuf_pool = NULL;
 
 /* Per-port statistics struct */
@@ -701,7 +659,8 @@ MAIN(int argc, char **argv)
 		/* init one RX queue */
 		fflush(stdout);
 		ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
-					     rte_eth_dev_socket_id(portid), &rx_conf,
+					     rte_eth_dev_socket_id(portid),
+					     NULL,
 					     l2fwd_pktmbuf_pool);
 		if (ret < 0)
 			rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup:err=%d, port=%u\n",
@@ -710,7 +669,8 @@ MAIN(int argc, char **argv)
 		/* init one TX queue on each port */
 		fflush(stdout);
 		ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
-				rte_eth_dev_socket_id(portid), &tx_conf);
+				rte_eth_dev_socket_id(portid),
+				NULL);
 		if (ret < 0)
 			rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup:err=%d, port=%u\n",
 				ret, (unsigned) portid);
diff --git a/examples/l3fwd-acl/main.c b/examples/l3fwd-acl/main.c
index 4dd6b34191..e31a7d7b35 100644
--- a/examples/l3fwd-acl/main.c
+++ b/examples/l3fwd-acl/main.c
@@ -100,25 +100,6 @@
 	nb_lcores * MEMPOOL_CACHE_SIZE),			\
 	(unsigned)8192)
 
-/*
- * RX and TX Prefetch, Host, and Write-back threshold values should be
- * carefully set for optimal performance. Consult the network
- * controller's datasheet and supporting DPDK documentation for guidance
- * on how these parameters should be set.
- */
-#define RX_PTHRESH 8 /**< Default values of RX prefetch threshold reg. */
-#define RX_HTHRESH 8 /**< Default values of RX host threshold reg. */
-#define RX_WTHRESH 4 /**< Default values of RX write-back threshold reg. */
-
-/*
- * These default values are optimized for use with the Intel(R) 82599 10 GbE
- * Controller and the DPDK ixgbe PMD. Consider using other values for other
- * network controllers and/or network drivers.
- */
-#define TX_PTHRESH 36 /**< Default values of TX prefetch threshold reg. */
-#define TX_HTHRESH 0  /**< Default values of TX host threshold reg. */
-#define TX_WTHRESH 0  /**< Default values of TX write-back threshold reg. */
-
 #define MAX_PKT_BURST 32
 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
 
@@ -207,26 +188,6 @@ static struct rte_eth_conf port_conf = {
 	},
 };
 
-static const struct rte_eth_rxconf rx_conf = {
-	.rx_thresh = {
-		.pthresh = RX_PTHRESH,
-		.hthresh = RX_HTHRESH,
-		.wthresh = RX_WTHRESH,
-	},
-	.rx_free_thresh = 32,
-};
-
-static const struct rte_eth_txconf tx_conf = {
-	.tx_thresh = {
-		.pthresh = TX_PTHRESH,
-		.hthresh = TX_HTHRESH,
-		.wthresh = TX_WTHRESH,
-	},
-	.tx_free_thresh = 0, /* Use PMD default values */
-	.tx_rs_thresh = 0, /* Use PMD default values */
-	.txq_flags = 0x0,
-};
-
 static struct rte_mempool *pktmbuf_pool[NB_SOCKETS];
 
 /***********************start of ACL part******************************/
@@ -1969,6 +1930,8 @@ int
 MAIN(int argc, char **argv)
 {
 	struct lcore_conf *qconf;
+	struct rte_eth_dev_info dev_info;
+	struct rte_eth_txconf *txconf;
 	int ret;
 	unsigned nb_ports;
 	uint16_t queueid;
@@ -2056,8 +2019,13 @@ MAIN(int argc, char **argv)
 
 			printf("txq=%u,%d,%d ", lcore_id, queueid, socketid);
 			fflush(stdout);
+
+			rte_eth_dev_info_get(portid, &dev_info);
+			txconf = &dev_info.default_txconf;
+			if (port_conf.rxmode.jumbo_frame)
+				txconf->txq_flags = 0;
 			ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
-						     socketid, &tx_conf);
+						     socketid, txconf);
 			if (ret < 0)
 				rte_exit(EXIT_FAILURE,
 					"rte_eth_tx_queue_setup: err=%d, "
@@ -2091,7 +2059,7 @@ MAIN(int argc, char **argv)
 			fflush(stdout);
 
 			ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,
-					socketid, &rx_conf,
+					socketid, NULL,
 					pktmbuf_pool[socketid]);
 			if (ret < 0)
 				rte_exit(EXIT_FAILURE,
diff --git a/examples/l3fwd-power/main.c b/examples/l3fwd-power/main.c
index 3bf63ffb9a..12e4fd6b66 100644
--- a/examples/l3fwd-power/main.c
+++ b/examples/l3fwd-power/main.c
@@ -140,25 +140,6 @@
 	nb_lcores*MEMPOOL_CACHE_SIZE), \
 	(unsigned)8192)
 
-/*
- * RX and TX Prefetch, Host, and Write-back threshold values should be
- * carefully set for optimal performance. Consult the network
- * controller's datasheet and supporting DPDK documentation for guidance
- * on how these parameters should be set.
- */
-#define RX_PTHRESH 8 /**< Default values of RX prefetch threshold reg. */
-#define RX_HTHRESH 8 /**< Default values of RX host threshold reg. */
-#define RX_WTHRESH 4 /**< Default values of RX write-back threshold reg. */
-
-/*
- * These default values are optimized for use with the Intel(R) 82599 10 GbE
- * Controller and the DPDK ixgbe PMD. Consider using other values for other
- * network controllers and/or network drivers.
- */
-#define TX_PTHRESH 36 /**< Default values of TX prefetch threshold reg. */
-#define TX_HTHRESH 0  /**< Default values of TX host threshold reg. */
-#define TX_WTHRESH 0  /**< Default values of TX write-back threshold reg. */
-
 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
 
 #define NB_SOCKETS 8
@@ -255,26 +236,6 @@ static struct rte_eth_conf port_conf = {
 	},
 };
 
-static const struct rte_eth_rxconf rx_conf = {
-	.rx_thresh = {
-		.pthresh = RX_PTHRESH,
-		.hthresh = RX_HTHRESH,
-		.wthresh = RX_WTHRESH,
-	},
-	.rx_free_thresh = 32,
-};
-
-static const struct rte_eth_txconf tx_conf = {
-	.tx_thresh = {
-		.pthresh = TX_PTHRESH,
-		.hthresh = TX_HTHRESH,
-		.wthresh = TX_WTHRESH,
-	},
-	.tx_free_thresh = 0, /* Use PMD default values */
-	.tx_rs_thresh = 0, /* Use PMD default values */
-	.txq_flags = 0x0,
-};
-
 static struct rte_mempool * pktmbuf_pool[NB_SOCKETS];
 
 
@@ -1513,6 +1474,8 @@ int
 MAIN(int argc, char **argv)
 {
 	struct lcore_conf *qconf;
+	struct rte_eth_dev_info dev_info;
+	struct rte_eth_txconf *txconf;
 	int ret;
 	unsigned nb_ports;
 	uint16_t queueid;
@@ -1603,8 +1566,13 @@ MAIN(int argc, char **argv)
 
 			printf("txq=%u,%d,%d ", lcore_id, queueid, socketid);
 			fflush(stdout);
+
+			rte_eth_dev_info_get(portid, &dev_info);
+			txconf = &dev_info.default_txconf;
+			if (port_conf.rxmode.jumbo_frame)
+				txconf->txq_flags = 0;
 			ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
-						     socketid, &tx_conf);
+						     socketid, txconf);
 			if (ret < 0)
 				rte_exit(EXIT_FAILURE,
 					"rte_eth_tx_queue_setup: err=%d, "
@@ -1652,7 +1620,8 @@ MAIN(int argc, char **argv)
 			fflush(stdout);
 
 			ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,
-				socketid, &rx_conf, pktmbuf_pool[socketid]);
+				socketid, NULL,
+				pktmbuf_pool[socketid]);
 			if (ret < 0)
 				rte_exit(EXIT_FAILURE,
 					"rte_eth_rx_queue_setup: err=%d, "
diff --git a/examples/l3fwd-vf/main.c b/examples/l3fwd-vf/main.c
index f567aa8b38..0288d99a3e 100644
--- a/examples/l3fwd-vf/main.c
+++ b/examples/l3fwd-vf/main.c
@@ -215,30 +215,6 @@ static struct rte_eth_conf port_conf = {
 	},
 };
 
-static const struct rte_eth_rxconf rx_conf = {
-	.rx_thresh = {
-		.pthresh = RX_PTHRESH,
-		.hthresh = RX_HTHRESH,
-		.wthresh = RX_WTHRESH,
-	},
-	.rx_free_thresh = 32,
-};
-
-static const struct rte_eth_txconf tx_conf = {
-	.tx_thresh = {
-		.pthresh = TX_PTHRESH,
-		.hthresh = TX_HTHRESH,
-		.wthresh = TX_WTHRESH,
-	},
-	.tx_free_thresh = 0, /* Use PMD default values */
-	.tx_rs_thresh = 0, /* Use PMD default values */
-	.txq_flags = (ETH_TXQ_FLAGS_NOMULTSEGS |
-		      ETH_TXQ_FLAGS_NOVLANOFFL |
-		      ETH_TXQ_FLAGS_NOXSUMSCTP |
-		      ETH_TXQ_FLAGS_NOXSUMUDP |
-		      ETH_TXQ_FLAGS_NOXSUMTCP)
-};
-
 static struct rte_mempool * pktmbuf_pool[NB_SOCKETS];
 
 
@@ -979,6 +955,8 @@ int
 MAIN(int argc, char **argv)
 {
 	struct lcore_conf *qconf;
+	struct rte_eth_dev_info dev_info;
+	struct rte_eth_txconf *txconf;
 	int ret;
 	unsigned nb_ports;
 	uint16_t queueid;
@@ -1052,8 +1030,13 @@ MAIN(int argc, char **argv)
 
 		printf("txq=%d,%d,%d ", portid, 0, socketid);
 		fflush(stdout);
+
+		rte_eth_dev_info_get(portid, &dev_info);
+		txconf = &dev_info.default_txconf;
+		if (port_conf.rxmode.jumbo_frame)
+			txconf->txq_flags = 0;
 		ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
-						 socketid, &tx_conf);
+						 socketid, txconf);
 		if (ret < 0)
 			rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup: err=%d, "
 				"port=%d\n", ret, portid);
@@ -1083,7 +1066,8 @@ MAIN(int argc, char **argv)
 			fflush(stdout);
 
 			ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,
-						socketid, &rx_conf, pktmbuf_pool[socketid]);
+						socketid, NULL,
+						pktmbuf_pool[socketid]);
 			if (ret < 0)
 				rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup: err=%d,"
 						"port=%d\n", ret, portid);
diff --git a/examples/l3fwd/main.c b/examples/l3fwd/main.c
index 01220e3be7..181d682895 100644
--- a/examples/l3fwd/main.c
+++ b/examples/l3fwd/main.c
@@ -137,25 +137,6 @@
 				nb_lcores*MEMPOOL_CACHE_SIZE),												\
 				(unsigned)8192)
 
-/*
- * RX and TX Prefetch, Host, and Write-back threshold values should be
- * carefully set for optimal performance. Consult the network
- * controller's datasheet and supporting DPDK documentation for guidance
- * on how these parameters should be set.
- */
-#define RX_PTHRESH 8 /**< Default values of RX prefetch threshold reg. */
-#define RX_HTHRESH 8 /**< Default values of RX host threshold reg. */
-#define RX_WTHRESH 4 /**< Default values of RX write-back threshold reg. */
-
-/*
- * These default values are optimized for use with the Intel(R) 82599 10 GbE
- * Controller and the DPDK ixgbe PMD. Consider using other values for other
- * network controllers and/or network drivers.
- */
-#define TX_PTHRESH 36 /**< Default values of TX prefetch threshold reg. */
-#define TX_HTHRESH 0  /**< Default values of TX host threshold reg. */
-#define TX_WTHRESH 0  /**< Default values of TX write-back threshold reg. */
-
 #define MAX_PKT_BURST     32
 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
 
@@ -259,31 +240,6 @@ static struct rte_eth_conf port_conf = {
 	},
 };
 
-static const struct rte_eth_rxconf rx_conf = {
-	.rx_thresh = {
-		.pthresh = RX_PTHRESH,
-		.hthresh = RX_HTHRESH,
-		.wthresh = RX_WTHRESH,
-	},
-	.rx_free_thresh = 32,
-};
-
-static struct rte_eth_txconf tx_conf = {
-	.tx_thresh = {
-		.pthresh = TX_PTHRESH,
-		.hthresh = TX_HTHRESH,
-		.wthresh = TX_WTHRESH,
-	},
-	.tx_free_thresh = 0, /* Use PMD default values */
-	.tx_rs_thresh = 0, /* Use PMD default values */
-	.txq_flags = (ETH_TXQ_FLAGS_NOMULTSEGS |
-			ETH_TXQ_FLAGS_NOVLANOFFL |
-			ETH_TXQ_FLAGS_NOXSUMSCTP |
-			ETH_TXQ_FLAGS_NOXSUMUDP |
-			ETH_TXQ_FLAGS_NOXSUMTCP)
-
-};
-
 static struct rte_mempool * pktmbuf_pool[NB_SOCKETS];
 
 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
@@ -1974,7 +1930,6 @@ parse_args(int argc, char **argv)
 
 				printf("jumbo frame is enabled - disabling simple TX path\n");
 				port_conf.rxmode.jumbo_frame = 1;
-				tx_conf.txq_flags = 0;
 
 				/* if no max-pkt-len set, use the default value ETHER_MAX_LEN */
 				if (0 == getopt_long(argc, argvopt, "", &lenopts, &option_index)) {
@@ -2448,6 +2403,8 @@ int
 MAIN(int argc, char **argv)
 {
 	struct lcore_conf *qconf;
+	struct rte_eth_dev_info dev_info;
+	struct rte_eth_txconf *txconf;
 	int ret;
 	unsigned nb_ports;
 	uint16_t queueid;
@@ -2537,8 +2494,13 @@ MAIN(int argc, char **argv)
 
 			printf("txq=%u,%d,%d ", lcore_id, queueid, socketid);
 			fflush(stdout);
+
+			rte_eth_dev_info_get(portid, &dev_info);
+			txconf = &dev_info.default_txconf;
+			if (port_conf.rxmode.jumbo_frame)
+				txconf->txq_flags = 0;
 			ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
-						     socketid, &tx_conf);
+						     socketid, txconf);
 			if (ret < 0)
 				rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup: err=%d, "
 					"port=%d\n", ret, portid);
@@ -2570,7 +2532,9 @@ MAIN(int argc, char **argv)
 			fflush(stdout);
 
 			ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,
-				        socketid, &rx_conf, pktmbuf_pool[socketid]);
+					socketid,
+					NULL,
+					pktmbuf_pool[socketid]);
 			if (ret < 0)
 				rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup: err=%d,"
 						"port=%d\n", ret, portid);
diff --git a/examples/link_status_interrupt/main.c b/examples/link_status_interrupt/main.c
index b8b757120d..786ddc5b73 100644
--- a/examples/link_status_interrupt/main.c
+++ b/examples/link_status_interrupt/main.c
@@ -78,25 +78,6 @@
 #define MBUF_SIZE (2048 + sizeof(struct rte_mbuf) + RTE_PKTMBUF_HEADROOM)
 #define NB_MBUF   8192
 
-/*
- * RX and TX Prefetch, Host, and Write-back threshold values should be
- * carefully set for optimal performance. Consult the network
- * controller's datasheet and supporting DPDK documentation for guidance
- * on how these parameters should be set.
- */
-#define RX_PTHRESH 8 /**< Default values of RX prefetch threshold reg. */
-#define RX_HTHRESH 8 /**< Default values of RX host threshold reg. */
-#define RX_WTHRESH 4 /**< Default values of RX write-back threshold reg. */
-
-/*
- * These default values are optimized for use with the Intel(R) 82599 10 GbE
- * Controller and the DPDK ixgbe PMD. Consider using other values for other
- * network controllers and/or network drivers.
- */
-#define TX_PTHRESH 36 /**< Default values of TX prefetch threshold reg. */
-#define TX_HTHRESH 0  /**< Default values of TX host threshold reg. */
-#define TX_WTHRESH 0  /**< Default values of TX write-back threshold reg. */
-
 #define MAX_PKT_BURST 32
 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
 
@@ -153,24 +134,6 @@ static const struct rte_eth_conf port_conf = {
 	},
 };
 
-static const struct rte_eth_rxconf rx_conf = {
-	.rx_thresh = {
-		.pthresh = RX_PTHRESH,
-		.hthresh = RX_HTHRESH,
-		.wthresh = RX_WTHRESH,
-	},
-};
-
-static const struct rte_eth_txconf tx_conf = {
-	.tx_thresh = {
-		.pthresh = TX_PTHRESH,
-		.hthresh = TX_HTHRESH,
-		.wthresh = TX_WTHRESH,
-	},
-	.tx_free_thresh = 0, /* Use PMD default values */
-	.tx_rs_thresh = 0, /* Use PMD default values */
-};
-
 struct rte_mempool * lsi_pktmbuf_pool = NULL;
 
 /* Per-port statistics struct */
@@ -751,7 +714,8 @@ MAIN(int argc, char **argv)
 		/* init one RX queue */
 		fflush(stdout);
 		ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
-					     rte_eth_dev_socket_id(portid), &rx_conf,
+					     rte_eth_dev_socket_id(portid),
+					     NULL,
 					     lsi_pktmbuf_pool);
 		if (ret < 0)
 			rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup: err=%d, port=%u\n",
@@ -760,7 +724,8 @@ MAIN(int argc, char **argv)
 		/* init one TX queue logical core on each port */
 		fflush(stdout);
 		ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
-				rte_eth_dev_socket_id(portid), &tx_conf);
+				rte_eth_dev_socket_id(portid),
+				NULL);
 		if (ret < 0)
 			rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup: err=%d,port=%u\n",
 				  ret, (unsigned) portid);
diff --git a/examples/load_balancer/init.c b/examples/load_balancer/init.c
index a30070656c..aeff5ca6d8 100644
--- a/examples/load_balancer/init.c
+++ b/examples/load_balancer/init.c
@@ -95,26 +95,6 @@ static struct rte_eth_conf port_conf = {
 	},
 };
 
-static struct rte_eth_rxconf rx_conf = {
-	.rx_thresh = {
-		.pthresh = APP_DEFAULT_NIC_RX_PTHRESH,
-		.hthresh = APP_DEFAULT_NIC_RX_HTHRESH,
-		.wthresh = APP_DEFAULT_NIC_RX_WTHRESH,
-	},
-	.rx_free_thresh = APP_DEFAULT_NIC_RX_FREE_THRESH,
-	.rx_drop_en = APP_DEFAULT_NIC_RX_DROP_EN,
-};
-
-static struct rte_eth_txconf tx_conf = {
-	.tx_thresh = {
-		.pthresh = APP_DEFAULT_NIC_TX_PTHRESH,
-		.hthresh = APP_DEFAULT_NIC_TX_HTHRESH,
-		.wthresh = APP_DEFAULT_NIC_TX_WTHRESH,
-	},
-	.tx_free_thresh = APP_DEFAULT_NIC_TX_FREE_THRESH,
-	.tx_rs_thresh = APP_DEFAULT_NIC_TX_RS_THRESH,
-};
-
 static void
 app_assign_worker_ids(void)
 {
@@ -491,7 +471,7 @@ app_init_nics(void)
 				queue,
 				(uint16_t) app.nic_rx_ring_size,
 				socket,
-				&rx_conf,
+				NULL,
 				pool);
 			if (ret < 0) {
 				rte_panic("Cannot init RX queue %u for port %u (%d)\n",
@@ -512,7 +492,7 @@ app_init_nics(void)
 				0,
 				(uint16_t) app.nic_tx_ring_size,
 				socket,
-				&tx_conf);
+				NULL);
 			if (ret < 0) {
 				rte_panic("Cannot init TX queue 0 for port %d (%d)\n",
 					port,
diff --git a/examples/multi_process/client_server_mp/mp_server/init.c b/examples/multi_process/client_server_mp/mp_server/init.c
index 30518c069b..908c8ddcf0 100644
--- a/examples/multi_process/client_server_mp/mp_server/init.c
+++ b/examples/multi_process/client_server_mp/mp_server/init.c
@@ -83,41 +83,6 @@
 
 #define NO_FLAGS 0
 
-/*
- * RX and TX Prefetch, Host, and Write-back threshold values should be
- * carefully set for optimal performance. Consult the network
- * controller's datasheet and supporting DPDK documentation for guidance
- * on how these parameters should be set.
- */
-/* Default configuration for rx and tx thresholds etc. */
-/*
- * These default values are optimized for use with the Intel(R) 82599 10 GbE
- * Controller and the DPDK ixgbe PMD. Consider using other values for other
- * network controllers and/or network drivers.
- */
-#define MP_DEFAULT_PTHRESH 36
-#define MP_DEFAULT_RX_HTHRESH 8
-#define MP_DEFAULT_TX_HTHRESH 0
-#define MP_DEFAULT_WTHRESH 0
-
-static const struct rte_eth_rxconf rx_conf_default = {
-		.rx_thresh = {
-				.pthresh = MP_DEFAULT_PTHRESH,
-				.hthresh = MP_DEFAULT_RX_HTHRESH,
-				.wthresh = MP_DEFAULT_WTHRESH,
-		},
-};
-
-static const struct rte_eth_txconf tx_conf_default = {
-		.tx_thresh = {
-				.pthresh = MP_DEFAULT_PTHRESH,
-				.hthresh = MP_DEFAULT_TX_HTHRESH,
-				.wthresh = MP_DEFAULT_WTHRESH,
-		},
-		.tx_free_thresh = 0, /* Use PMD default values */
-		.tx_rs_thresh = 0, /* Use PMD default values */
-};
-
 /* The mbuf pool for packet rx */
 struct rte_mempool *pktmbuf_pool;
 
@@ -183,13 +148,15 @@ init_port(uint8_t port_num)
 
 	for (q = 0; q < rx_rings; q++) {
 		retval = rte_eth_rx_queue_setup(port_num, q, rx_ring_size,
-				rte_eth_dev_socket_id(port_num), &rx_conf_default, pktmbuf_pool);
+				rte_eth_dev_socket_id(port_num),
+				NULL, pktmbuf_pool);
 		if (retval < 0) return retval;
 	}
 
 	for ( q = 0; q < tx_rings; q ++ ) {
 		retval = rte_eth_tx_queue_setup(port_num, q, tx_ring_size,
-				rte_eth_dev_socket_id(port_num), &tx_conf_default);
+				rte_eth_dev_socket_id(port_num),
+				NULL);
 		if (retval < 0) return retval;
 	}
 
diff --git a/examples/multi_process/l2fwd_fork/main.c b/examples/multi_process/l2fwd_fork/main.c
index c887b633c4..1df9f017d6 100644
--- a/examples/multi_process/l2fwd_fork/main.c
+++ b/examples/multi_process/l2fwd_fork/main.c
@@ -96,25 +96,6 @@ enum l2fwd_cmd{
 	CMD_STOP,
 };
 
-/*
- * RX and TX Prefetch, Host, and Write-back threshold values should be
- * carefully set for optimal performance. Consult the network
- * controller's datasheet and supporting DPDK documentation for guidance
- * on how these parameters should be set.
- */
-#define RX_PTHRESH 8 /**< Default values of RX prefetch threshold reg. */
-#define RX_HTHRESH 8 /**< Default values of RX host threshold reg. */
-#define RX_WTHRESH 4 /**< Default values of RX write-back threshold reg. */
-
-/*
- * These default values are optimized for use with the Intel(R) 82599 10 GbE
- * Controller and the DPDK ixgbe PMD. Consider using other values for other
- * network controllers and/or network drivers.
- */
-#define TX_PTHRESH 36 /**< Default values of TX prefetch threshold reg. */
-#define TX_HTHRESH 0  /**< Default values of TX host threshold reg. */
-#define TX_WTHRESH 0  /**< Default values of TX write-back threshold reg. */
-
 #define MAX_PKT_BURST 32
 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
 
@@ -190,25 +171,6 @@ static const struct rte_eth_conf port_conf = {
 	},
 };
 
-static const struct rte_eth_rxconf rx_conf = {
-	.rx_thresh = {
-		.pthresh = RX_PTHRESH,
-		.hthresh = RX_HTHRESH,
-		.wthresh = RX_WTHRESH,
-	},
-};
-
-static const struct rte_eth_txconf tx_conf = {
-	.tx_thresh = {
-		.pthresh = TX_PTHRESH,
-		.hthresh = TX_HTHRESH,
-		.wthresh = TX_WTHRESH,
-	},
-	.tx_free_thresh = 0, /* Use PMD default values */
-	.tx_rs_thresh = 0, /* Use PMD default values */
-	.txq_flags = ETH_TXQ_FLAGS_NOMULTSEGS | ETH_TXQ_FLAGS_NOOFFLOADS,
-};
-
 static struct rte_mempool * l2fwd_pktmbuf_pool[RTE_MAX_ETHPORTS];
 
 /* Per-port statistics struct */
@@ -1167,7 +1129,8 @@ MAIN(int argc, char **argv)
 		/* init one RX queue */
 		fflush(stdout);
 		ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
-					     rte_eth_dev_socket_id(portid), &rx_conf,
+					     rte_eth_dev_socket_id(portid),
+					     NULL,
 					     l2fwd_pktmbuf_pool[portid]);
 		if (ret < 0)
 			rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup:err=%d, port=%u\n",
@@ -1176,7 +1139,8 @@ MAIN(int argc, char **argv)
 		/* init one TX queue on each port */
 		fflush(stdout);
 		ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
-				rte_eth_dev_socket_id(portid), &tx_conf);
+				rte_eth_dev_socket_id(portid),
+				NULL);
 		if (ret < 0)
 			rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup:err=%d, port=%u\n",
 				ret, (unsigned) portid);
diff --git a/examples/multi_process/symmetric_mp/main.c b/examples/multi_process/symmetric_mp/main.c
index 504a27aae6..ff48f20816 100644
--- a/examples/multi_process/symmetric_mp/main.c
+++ b/examples/multi_process/symmetric_mp/main.c
@@ -89,36 +89,6 @@
 #define PARAM_PROC_ID "proc-id"
 #define PARAM_NUM_PROCS "num-procs"
 
-/*
- * RX and TX Prefetch, Host, and Write-back threshold values should be
- * carefully set for optimal performance. Consult the network
- * controller's datasheet and supporting DPDK documentation for guidance
- * on how these parameters should be set.
- */
-/* Default configuration for rx and tx thresholds etc. */
-static const struct rte_eth_rxconf rx_conf_default = {
-	.rx_thresh = {
-		.pthresh = 8,
-		.hthresh = 8,
-		.wthresh = 4,
-	},
-};
-
-/*
- * These default values are optimized for use with the Intel(R) 82599 10 GbE
- * Controller and the DPDK ixgbe PMD. Consider using other values for other
- * network controllers and/or network drivers.
- */
-static const struct rte_eth_txconf tx_conf_default = {
-	.tx_thresh = {
-		.pthresh = 36,
-		.hthresh = 0,
-		.wthresh = 0,
-	},
-	.tx_free_thresh = 0, /* Use PMD default values */
-	.tx_rs_thresh = 0, /* Use PMD default values */
-};
-
 /* for each lcore, record the elements of the ports array to use */
 struct lcore_ports{
 	unsigned start_port;
@@ -277,7 +247,8 @@ smp_port_init(uint8_t port, struct rte_mempool *mbuf_pool, uint16_t num_queues)
 
 	for (q = 0; q < rx_rings; q ++) {
 		retval = rte_eth_rx_queue_setup(port, q, RX_RING_SIZE,
-				rte_eth_dev_socket_id(port), &rx_conf_default,
+				rte_eth_dev_socket_id(port),
+				NULL,
 				mbuf_pool);
 		if (retval < 0)
 			return retval;
@@ -285,7 +256,8 @@ smp_port_init(uint8_t port, struct rte_mempool *mbuf_pool, uint16_t num_queues)
 
 	for (q = 0; q < tx_rings; q ++) {
 		retval = rte_eth_tx_queue_setup(port, q, TX_RING_SIZE,
-				rte_eth_dev_socket_id(port), &tx_conf_default);
+				rte_eth_dev_socket_id(port),
+				NULL);
 		if (retval < 0)
 			return retval;
 	}
diff --git a/examples/netmap_compat/bridge/bridge.c b/examples/netmap_compat/bridge/bridge.c
index d9ceb423e1..0a8efbebc5 100644
--- a/examples/netmap_compat/bridge/bridge.c
+++ b/examples/netmap_compat/bridge/bridge.c
@@ -67,29 +67,6 @@ struct rte_eth_conf eth_conf = {
 	},
 };
 
-struct rte_eth_txconf tx_conf = {
-	.tx_thresh = {
-	    .pthresh = 36,
-	    .hthresh = 0,
-	    .wthresh = 0,
-	},
-	.tx_free_thresh = 0,
-	.tx_rs_thresh = 0,
-	.txq_flags = (ETH_TXQ_FLAGS_NOMULTSEGS |
-			ETH_TXQ_FLAGS_NOVLANOFFL |
-			ETH_TXQ_FLAGS_NOXSUMSCTP |
-			ETH_TXQ_FLAGS_NOXSUMUDP |
-			ETH_TXQ_FLAGS_NOXSUMTCP)
-};
-
-struct rte_eth_rxconf rx_conf = {
-	.rx_thresh = {
-	    .pthresh = 8,
-	    .hthresh = 8,
-	    .wthresh = 4,
-	},
-};
-
 #define	MAX_QUEUE_NUM	1
 #define	RX_QUEUE_NUM	1
 #define	TX_QUEUE_NUM	1
@@ -103,8 +80,6 @@ struct rte_eth_rxconf rx_conf = {
 
 struct rte_netmap_port_conf port_conf = {
 	.eth_conf = &eth_conf,
-	.tx_conf  = &tx_conf,
-	.rx_conf  = &rx_conf,
 	.socket_id = SOCKET_ID_ANY,
 	.nr_tx_rings = TX_QUEUE_NUM,
 	.nr_rx_rings = RX_QUEUE_NUM,
diff --git a/examples/netmap_compat/lib/compat_netmap.c b/examples/netmap_compat/lib/compat_netmap.c
index 44b3f8e3b6..234836675a 100644
--- a/examples/netmap_compat/lib/compat_netmap.c
+++ b/examples/netmap_compat/lib/compat_netmap.c
@@ -713,7 +713,7 @@ rte_netmap_init_port(uint8_t portid, const struct rte_netmap_port_conf *conf)
 
 	for (i = 0; i < conf->nr_tx_rings; i++) {
 		ret = rte_eth_tx_queue_setup(portid, i, tx_slots,
-			conf->socket_id, conf->tx_conf);
+			conf->socket_id, NULL);
 
 		if (ret < 0) {
 			RTE_LOG(ERR, USER1,
@@ -724,7 +724,7 @@ rte_netmap_init_port(uint8_t portid, const struct rte_netmap_port_conf *conf)
 		}
 
 		ret = rte_eth_rx_queue_setup(portid, i, rx_slots,
-			conf->socket_id, conf->rx_conf, conf->pool);
+			conf->socket_id, NULL, conf->pool);
 
 		if (ret < 0) {
 			RTE_LOG(ERR, USER1,
@@ -737,8 +737,6 @@ rte_netmap_init_port(uint8_t portid, const struct rte_netmap_port_conf *conf)
 
 	/* copy config to the private storage. */
 	ports[portid].eth_conf = conf->eth_conf[0];
-	ports[portid].rx_conf = conf->rx_conf[0];
-	ports[portid].tx_conf = conf->tx_conf[0];
 	ports[portid].pool = conf->pool;
 	ports[portid].socket_id = conf->socket_id;
 	ports[portid].nr_tx_rings = conf->nr_tx_rings;
diff --git a/examples/netmap_compat/lib/compat_netmap.h b/examples/netmap_compat/lib/compat_netmap.h
index f7f2276c78..f8a7812264 100644
--- a/examples/netmap_compat/lib/compat_netmap.h
+++ b/examples/netmap_compat/lib/compat_netmap.h
@@ -56,8 +56,6 @@ struct rte_netmap_conf {
 
 struct rte_netmap_port_conf {
 	struct rte_eth_conf   *eth_conf;
-	struct rte_eth_txconf *tx_conf;
-	struct rte_eth_rxconf *rx_conf;
 	struct rte_mempool    *pool;
 	int32_t socket_id;
 	uint16_t nr_tx_rings;
diff --git a/examples/qos_meter/main.c b/examples/qos_meter/main.c
index c02ac50851..b30bfdef5f 100644
--- a/examples/qos_meter/main.c
+++ b/examples/qos_meter/main.c
@@ -102,26 +102,6 @@ static struct rte_eth_conf port_conf = {
 	},
 };
 
-static const struct rte_eth_rxconf rx_conf = {
-	.rx_thresh = {
-		.pthresh = 8, /* RX prefetch threshold reg */
-		.hthresh = 8, /* RX host threshold reg */
-		.wthresh = 4, /* RX write-back threshold reg */
-	},
-	.rx_free_thresh = 32,
-};
-
-static const struct rte_eth_txconf tx_conf = {
-	.tx_thresh = {
-		.pthresh = 36, /* TX prefetch threshold reg */
-		.hthresh = 0,  /* TX host threshold reg */
-		.wthresh = 0,  /* TX write-back threshold reg */
-	},
-	.tx_free_thresh = 0,
-	.tx_rs_thresh = 0,
-	.txq_flags = 0x0,
-};
-
 #define NIC_RX_QUEUE_DESC               128
 #define NIC_TX_QUEUE_DESC               512
 
@@ -391,11 +371,15 @@ MAIN(int argc, char **argv)
 	if (ret < 0)
 		rte_exit(EXIT_FAILURE, "Port %d configuration error (%d)\n", port_rx, ret);
 
-	ret = rte_eth_rx_queue_setup(port_rx, NIC_RX_QUEUE, NIC_RX_QUEUE_DESC, rte_eth_dev_socket_id(port_rx), &rx_conf, pool);
+	ret = rte_eth_rx_queue_setup(port_rx, NIC_RX_QUEUE, NIC_RX_QUEUE_DESC,
+				rte_eth_dev_socket_id(port_rx),
+				NULL, pool);
 	if (ret < 0)
 		rte_exit(EXIT_FAILURE, "Port %d RX queue setup error (%d)\n", port_rx, ret);
 
-	ret = rte_eth_tx_queue_setup(port_rx, NIC_TX_QUEUE, NIC_TX_QUEUE_DESC, rte_eth_dev_socket_id(port_rx), &tx_conf);
+	ret = rte_eth_tx_queue_setup(port_rx, NIC_TX_QUEUE, NIC_TX_QUEUE_DESC,
+				rte_eth_dev_socket_id(port_rx),
+				NULL);
 	if (ret < 0)
 	rte_exit(EXIT_FAILURE, "Port %d TX queue setup error (%d)\n", port_rx, ret);
 
@@ -403,11 +387,15 @@ MAIN(int argc, char **argv)
 	if (ret < 0)
 		rte_exit(EXIT_FAILURE, "Port %d configuration error (%d)\n", port_tx, ret);
 
-	ret = rte_eth_rx_queue_setup(port_tx, NIC_RX_QUEUE, NIC_RX_QUEUE_DESC, rte_eth_dev_socket_id(port_tx), &rx_conf, pool);
+	ret = rte_eth_rx_queue_setup(port_tx, NIC_RX_QUEUE, NIC_RX_QUEUE_DESC,
+				rte_eth_dev_socket_id(port_tx),
+				NULL, pool);
 	if (ret < 0)
 		rte_exit(EXIT_FAILURE, "Port %d RX queue setup error (%d)\n", port_tx, ret);
 
-	ret = rte_eth_tx_queue_setup(port_tx, NIC_TX_QUEUE, NIC_TX_QUEUE_DESC, rte_eth_dev_socket_id(port_tx), &tx_conf);
+	ret = rte_eth_tx_queue_setup(port_tx, NIC_TX_QUEUE, NIC_TX_QUEUE_DESC,
+				rte_eth_dev_socket_id(port_tx),
+				NULL);
 	if (ret < 0)
 		rte_exit(EXIT_FAILURE, "Port %d TX queue setup error (%d)\n", port_tx, ret);
 
diff --git a/examples/quota_watermark/qw/init.c b/examples/quota_watermark/qw/init.c
index 9bc5db3368..f5f78c7695 100644
--- a/examples/quota_watermark/qw/init.c
+++ b/examples/quota_watermark/qw/init.c
@@ -64,24 +64,6 @@ static const struct rte_eth_conf port_conf = {
 	},
 };
 
-static const struct rte_eth_rxconf rx_conf = {
-    .rx_thresh = {
-        .pthresh = 8,
-        .hthresh = 8,
-        .wthresh = 4,
-    },
-};
-
-static const struct rte_eth_txconf tx_conf = {
-    .tx_thresh = {
-        .pthresh = 36,
-        .hthresh = 0,
-        .wthresh = 0,
-    },
-    .tx_free_thresh = 0,
-    .tx_rs_thresh = 0,
-};
-
 static struct rte_eth_fc_conf fc_conf = {
     .mode       = RTE_FC_TX_PAUSE,
     .high_water = 80 * 510 / 100,
@@ -104,15 +86,17 @@ void configure_eth_port(uint8_t port_id)
 
     /* Initialize the port's RX queue */
     ret = rte_eth_rx_queue_setup(port_id, 0, RX_DESC_PER_QUEUE,
-                                 rte_eth_dev_socket_id(port_id), &rx_conf,
-                                 mbuf_pool);
+				rte_eth_dev_socket_id(port_id),
+				NULL,
+				mbuf_pool);
     if (ret < 0)
         rte_exit(EXIT_FAILURE, "Failed to setup RX queue on "
                                "port %u (error %d)\n", (unsigned) port_id, ret);
 
     /* Initialize the port's TX queue */
     ret = rte_eth_tx_queue_setup(port_id, 0, TX_DESC_PER_QUEUE,
-                                 rte_eth_dev_socket_id(port_id), &tx_conf);
+				rte_eth_dev_socket_id(port_id),
+				NULL);
     if (ret < 0)
         rte_exit(EXIT_FAILURE, "Failed to setup TX queue on "
                                "port %u (error %d)\n", (unsigned) port_id, ret);
diff --git a/examples/vhost_xen/main.c b/examples/vhost_xen/main.c
index 498de06204..0160492870 100644
--- a/examples/vhost_xen/main.c
+++ b/examples/vhost_xen/main.c
@@ -135,31 +135,6 @@ static uint32_t enable_vm2vm = 1;
 /* Enable stats. */
 static uint32_t enable_stats = 0;
 
-/* Default configuration for rx and tx thresholds etc. */
-static const struct rte_eth_rxconf rx_conf_default = {
-	.rx_thresh = {
-		.pthresh = RX_PTHRESH,
-		.hthresh = RX_HTHRESH,
-		.wthresh = RX_WTHRESH,
-	},
-	.rx_drop_en = 1,
-};
-
-/*
- * These default values are optimized for use with the Intel(R) 82599 10 GbE
- * Controller and the DPDK ixgbe/igb PMD. Consider using other values for other
- * network controllers and/or network drivers.
- */
-static const struct rte_eth_txconf tx_conf_default = {
-	.tx_thresh = {
-		.pthresh = TX_PTHRESH,
-		.hthresh = TX_HTHRESH,
-		.wthresh = TX_WTHRESH,
-	},
-	.tx_free_thresh = 0, /* Use PMD default values */
-	.tx_rs_thresh = 0, /* Use PMD default values */
-};
-
 /* empty vmdq configuration structure. Filled in programatically */
 static const struct rte_eth_conf vmdq_conf_default = {
 	.rxmode = {
@@ -301,6 +276,7 @@ static inline int
 port_init(uint8_t port, struct rte_mempool *mbuf_pool)
 {
 	struct rte_eth_dev_info dev_info;
+	struct rte_eth_rxconf *rxconf;
 	struct rte_eth_conf port_conf;
 	uint16_t rx_rings, tx_rings = (uint16_t)rte_lcore_count();
 	const uint16_t rx_ring_size = RTE_TEST_RX_DESC_DEFAULT, tx_ring_size = RTE_TEST_TX_DESC_DEFAULT;
@@ -331,17 +307,21 @@ port_init(uint8_t port, struct rte_mempool *mbuf_pool)
 	if (retval != 0)
 		return retval;
 
+	rte_eth_dev_info_get(port, &dev_info);
+	rxconf = &dev_info.default_rxconf;
+	rxconf->rx_drop_en = 1;
 	/* Setup the queues. */
 	for (q = 0; q < rx_rings; q ++) {
 		retval = rte_eth_rx_queue_setup(port, q, rx_ring_size,
-						rte_eth_dev_socket_id(port), &rx_conf_default,
+						rte_eth_dev_socket_id(port), rxconf,
 						mbuf_pool);
 		if (retval < 0)
 			return retval;
 	}
 	for (q = 0; q < tx_rings; q ++) {
 		retval = rte_eth_tx_queue_setup(port, q, tx_ring_size,
-						rte_eth_dev_socket_id(port), &tx_conf_default);
+						rte_eth_dev_socket_id(port),
+						NULL);
 		if (retval < 0)
 			return retval;
 	}
diff --git a/examples/vmdq/main.c b/examples/vmdq/main.c
index a162d8b5d4..c51e2fb29e 100644
--- a/examples/vmdq/main.c
+++ b/examples/vmdq/main.c
@@ -81,25 +81,6 @@
 #define MBUF_CACHE_SIZE 64
 #define MBUF_SIZE (2048 + sizeof(struct rte_mbuf) + RTE_PKTMBUF_HEADROOM)
 
-/*
- * RX and TX Prefetch, Host, and Write-back threshold values should be
- * carefully set for optimal performance. Consult the network
- * controller's datasheet and supporting DPDK documentation for guidance
- * on how these parameters should be set.
- */
-#define RX_PTHRESH 8 /**< Default values of RX prefetch threshold reg. */
-#define RX_HTHRESH 8 /**< Default values of RX host threshold reg. */
-#define RX_WTHRESH 4 /**< Default values of RX write-back threshold reg. */
-
-/*
- * These default values are optimized for use with the Intel(R) 82599 10 GbE
- * Controller and the DPDK ixgbe PMD. Consider using other values for other
- * network controllers and/or network drivers.
- */
-#define TX_PTHRESH 36 /**< Default values of TX prefetch threshold reg. */
-#define TX_HTHRESH 0  /**< Default values of TX host threshold reg. */
-#define TX_WTHRESH 0  /**< Default values of TX write-back threshold reg. */
-
 #define MAX_PKT_BURST 32
 
 /*
@@ -117,37 +98,6 @@ static uint32_t enabled_port_mask = 0;
 static uint32_t num_queues = 8;
 static uint32_t num_pools = 8;
 
-/*
- * RX and TX Prefetch, Host, and Write-back threshold values should be
- * carefully set for optimal performance. Consult the network
- * controller's datasheet and supporting DPDK documentation for guidance
- * on how these parameters should be set.
- */
-/* Default configuration for rx and tx thresholds etc. */
-static const struct rte_eth_rxconf rx_conf_default = {
-	.rx_thresh = {
-		.pthresh = RX_PTHRESH,
-		.hthresh = RX_HTHRESH,
-		.wthresh = RX_WTHRESH,
-	},
-	.rx_drop_en = 1,
-};
-
-/*
- * These default values are optimized for use with the Intel(R) 82599 10 GbE
- * Controller and the DPDK ixgbe/igb PMD. Consider using other values for other
- * network controllers and/or network drivers.
- */
-static const struct rte_eth_txconf tx_conf_default = {
-	.tx_thresh = {
-		.pthresh = TX_PTHRESH,
-		.hthresh = TX_HTHRESH,
-		.wthresh = TX_WTHRESH,
-	},
-	.tx_free_thresh = 0, /* Use PMD default values */
-	.tx_rs_thresh = 0, /* Use PMD default values */
-};
-
 /* empty vmdq configuration structure. Filled in programatically */
 static const struct rte_eth_conf vmdq_conf_default = {
 	.rxmode = {
@@ -283,6 +233,7 @@ static inline int
 port_init(uint8_t port, struct rte_mempool *mbuf_pool)
 {
 	struct rte_eth_dev_info dev_info;
+	struct rte_eth_rxconf *rxconf;
 	struct rte_eth_conf port_conf;
 	uint16_t rxRings, txRings = (uint16_t)rte_lcore_count();
 	const uint16_t rxRingSize = RTE_TEST_RX_DESC_DEFAULT, txRingSize = RTE_TEST_TX_DESC_DEFAULT;
@@ -308,17 +259,22 @@ port_init(uint8_t port, struct rte_mempool *mbuf_pool)
 	if (retval != 0)
 		return retval;
 
+	rte_eth_dev_info_get(port, &dev_info);
+	rxconf = &dev_info.default_rxconf;
+	rxconf->rx_drop_en = 1;
 	for (q = 0; q < rxRings; q ++) {
 		retval = rte_eth_rx_queue_setup(port, q, rxRingSize,
-						rte_eth_dev_socket_id(port), &rx_conf_default,
-						mbuf_pool);
+					rte_eth_dev_socket_id(port),
+					rxconf,
+					mbuf_pool);
 		if (retval < 0)
 			return retval;
 	}
 
 	for (q = 0; q < txRings; q ++) {
 		retval = rte_eth_tx_queue_setup(port, q, txRingSize,
-						rte_eth_dev_socket_id(port), &tx_conf_default);
+					rte_eth_dev_socket_id(port),
+					NULL);
 		if (retval < 0)
 			return retval;
 	}
diff --git a/examples/vmdq_dcb/main.c b/examples/vmdq_dcb/main.c
index 2f708a1543..20726e5cbf 100644
--- a/examples/vmdq_dcb/main.c
+++ b/examples/vmdq_dcb/main.c
@@ -87,36 +87,6 @@ static uint32_t enabled_port_mask = 0;
 /* number of pools (if user does not specify any, 16 by default */
 static enum rte_eth_nb_pools num_pools = ETH_16_POOLS;
 
-/*
- * RX and TX Prefetch, Host, and Write-back threshold values should be
- * carefully set for optimal performance. Consult the network
- * controller's datasheet and supporting DPDK documentation for guidance
- * on how these parameters should be set.
- */
-/* Default configuration for rx and tx thresholds etc. */
-static const struct rte_eth_rxconf rx_conf_default = {
-	.rx_thresh = {
-		.pthresh = 8,
-		.hthresh = 8,
-		.wthresh = 4,
-	},
-};
-
-/*
- * These default values are optimized for use with the Intel(R) 82599 10 GbE
- * Controller and the DPDK ixgbe PMD. Consider using other values for other
- * network controllers and/or network drivers.
- */
-static const struct rte_eth_txconf tx_conf_default = {
-	.tx_thresh = {
-		.pthresh = 36,
-		.hthresh = 0,
-		.wthresh = 0,
-	},
-	.tx_free_thresh = 0, /* Use PMD default values */
-	.tx_rs_thresh = 0, /* Use PMD default values */
-};
-
 /* empty vmdq+dcb configuration structure. Filled in programatically */
 static const struct rte_eth_conf vmdq_dcb_conf_default = {
 	.rxmode = {
@@ -212,7 +182,8 @@ port_init(uint8_t port, struct rte_mempool *mbuf_pool)
 
 	for (q = 0; q < rxRings; q ++) {
 		retval = rte_eth_rx_queue_setup(port, q, rxRingSize,
-						rte_eth_dev_socket_id(port), &rx_conf_default,
+						rte_eth_dev_socket_id(port),
+						NULL,
 						mbuf_pool);
 		if (retval < 0)
 			return retval;
@@ -220,7 +191,8 @@ port_init(uint8_t port, struct rte_mempool *mbuf_pool)
 
 	for (q = 0; q < txRings; q ++) {
 		retval = rte_eth_tx_queue_setup(port, q, txRingSize,
-						rte_eth_dev_socket_id(port), &tx_conf_default);
+						rte_eth_dev_socket_id(port),
+						NULL);
 		if (retval < 0)
 			return retval;
 	}