examples: check status of getting ethdev info

rte_eth_dev_info_get() return value was changed from void to
int, so this patch modify rte_eth_dev_info_get() usage across
examples according to its new return type.

Signed-off-by: Ivan Ilchenko <ivan.ilchenko@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>

examples/bond/main.c

@@ -148,7 +148,12 @@ slave_port_init(uint16_t portid, struct rte_mempool *mbuf_pool)
 	if (!rte_eth_dev_is_valid_port(portid))
 		rte_exit(EXIT_FAILURE, "Invalid port\n");
 
-	rte_eth_dev_info_get(portid, &dev_info);
+	retval = rte_eth_dev_info_get(portid, &dev_info);
+	if (retval != 0)
+		rte_exit(EXIT_FAILURE,
+			"Error during getting device (port %u) info: %s\n",
+			portid, strerror(-retval));
+
 	if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 		local_port_conf.txmode.offloads |=
 			DEV_TX_OFFLOAD_MBUF_FAST_FREE;
@@ -230,7 +235,12 @@ bond_port_init(struct rte_mempool *mbuf_pool)
 
 	BOND_PORT = retval;
 
-	rte_eth_dev_info_get(BOND_PORT, &dev_info);
+	retval = rte_eth_dev_info_get(BOND_PORT, &dev_info);
+	if (retval != 0)
+		rte_exit(EXIT_FAILURE,
+			"Error during getting device (port %u) info: %s\n",
+			BOND_PORT, strerror(-retval));
+
 	if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 		local_port_conf.txmode.offloads |=
 			DEV_TX_OFFLOAD_MBUF_FAST_FREE;

examples/distributor/main.c

@@ -120,7 +120,13 @@ port_init(uint16_t port, struct rte_mempool *mbuf_pool)
 	if (!rte_eth_dev_is_valid_port(port))
 		return -1;
 
-	rte_eth_dev_info_get(port, &dev_info);
+	retval = rte_eth_dev_info_get(port, &dev_info);
+	if (retval != 0) {
+		printf("Error during getting device (port %u) info: %s\n",
+				port, strerror(-retval));
+		return retval;
+	}
+
 	if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 		port_conf.txmode.offloads |=
 			DEV_TX_OFFLOAD_MBUF_FAST_FREE;

examples/ethtool/ethtool-app/main.c

@@ -95,6 +95,7 @@ static void setup_ports(struct app_config *app_cfg, int cnt_ports)
 	char str_name[16];
 	uint16_t nb_rxd = PORT_RX_QUEUE_SIZE;
 	uint16_t nb_txd = PORT_TX_QUEUE_SIZE;
+	int ret;
 
 	memset(&cfg_port, 0, sizeof(cfg_port));
 	cfg_port.txmode.mq_mode = ETH_MQ_TX_NONE;
@@ -102,7 +103,12 @@ static void setup_ports(struct app_config *app_cfg, int cnt_ports)
 	for (idx_port = 0; idx_port < cnt_ports; idx_port++) {
 		struct app_port *ptr_port = &app_cfg->ports[idx_port];
 
-		rte_eth_dev_info_get(idx_port, &dev_info);
+		ret = rte_eth_dev_info_get(idx_port, &dev_info);
+		if (ret != 0)
+			rte_exit(EXIT_FAILURE,
+				"Error during getting device (port %u) info: %s\n",
+				idx_port, strerror(-ret));
+
 		size_pktpool = dev_info.rx_desc_lim.nb_max +
 			dev_info.tx_desc_lim.nb_max + PKTPOOL_EXTRA_SIZE;
 

examples/ethtool/lib/rte_ethtool.c

@@ -41,7 +41,13 @@ rte_ethtool_get_drvinfo(uint16_t port_id, struct ethtool_drvinfo *drvinfo)
 		printf("Insufficient fw version buffer size, "
 		       "the minimum size should be %d\n", ret);
 
-	rte_eth_dev_info_get(port_id, &dev_info);
+	ret = rte_eth_dev_info_get(port_id, &dev_info);
+	if (ret != 0) {
+		printf("Error during getting device (port %u) info: %s\n",
+		       port_id, strerror(-ret));
+
+		return ret;
+	}
 
 	strlcpy(drvinfo->driver, dev_info.driver_name,
 		sizeof(drvinfo->driver));
@@ -370,8 +376,12 @@ rte_ethtool_net_set_rx_mode(uint16_t port_id)
 	uint16_t num_vfs;
 	struct rte_eth_dev_info dev_info;
 	uint16_t vf;
+	int ret;
+
+	ret = rte_eth_dev_info_get(port_id, &dev_info);
+	if (ret != 0)
+		return ret;
 
-	rte_eth_dev_info_get(port_id, &dev_info);
 	num_vfs = dev_info.max_vfs;
 
 	/* Set VF vf_rx_mode, VF unsupport status is discard */
@@ -397,11 +407,14 @@ rte_ethtool_get_ringparam(uint16_t port_id,
 	struct rte_eth_rxq_info rx_qinfo;
 	struct rte_eth_txq_info tx_qinfo;
 	int stat;
+	int ret;
 
 	if (ring_param == NULL)
 		return -EINVAL;
 
-	rte_eth_dev_info_get(port_id, &dev_info);
+	ret = rte_eth_dev_info_get(port_id, &dev_info);
+	if (ret != 0)
+		return ret;
 
 	stat = rte_eth_rx_queue_info_get(port_id, 0, &rx_qinfo);
 	if (stat != 0)

examples/eventdev_pipeline/main.c

@@ -274,7 +274,13 @@ port_init(uint8_t port, struct rte_mempool *mbuf_pool)
 	if (!rte_eth_dev_is_valid_port(port))
 		return -1;
 
-	rte_eth_dev_info_get(port, &dev_info);
+	retval = rte_eth_dev_info_get(port, &dev_info);
+	if (retval != 0) {
+		printf("Error during getting device (port %u) info: %s\n",
+				port, strerror(-retval));
+		return retval;
+	}
+
 	if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 		port_conf.txmode.offloads |=
 			DEV_TX_OFFLOAD_MBUF_FAST_FREE;

examples/exception_path/main.c

@@ -432,7 +432,12 @@ init_port(uint16_t port)
 	/* Initialise device and RX/TX queues */
 	PRINT_INFO("Initialising port %u ...", port);
 	fflush(stdout);
-	rte_eth_dev_info_get(port, &dev_info);
+
+	ret = rte_eth_dev_info_get(port, &dev_info);
+	if (ret != 0)
+		FATAL_ERROR("Error during getting device (port %u) info: %s\n",
+			port, strerror(-ret));
+
 	if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 		local_port_conf.txmode.offloads |=
 			DEV_TX_OFFLOAD_MBUF_FAST_FREE;

examples/ip_fragmentation/main.c

@@ -903,7 +903,12 @@ main(int argc, char **argv)
 		qconf = &lcore_queue_conf[rx_lcore_id];
 
 		/* limit the frame size to the maximum supported by NIC */
-		rte_eth_dev_info_get(portid, &dev_info);
+		ret = rte_eth_dev_info_get(portid, &dev_info);
+		if (ret != 0)
+			rte_exit(EXIT_FAILURE,
+				"Error during getting device (port %u) info: %s\n",
+				portid, strerror(-ret));
+
 		local_port_conf.rxmode.max_rx_pkt_len = RTE_MIN(
 		    dev_info.max_rx_pktlen,
 		    local_port_conf.rxmode.max_rx_pkt_len);
@@ -984,7 +989,12 @@ main(int argc, char **argv)
 		printf("\n");
 
 		/* init one TX queue per couple (lcore,port) */
-		rte_eth_dev_info_get(portid, &dev_info);
+		ret = rte_eth_dev_info_get(portid, &dev_info);
+		if (ret != 0)
+			rte_exit(EXIT_FAILURE,
+				"Error during getting device (port %u) info: %s\n",
+				portid, strerror(-ret));
+
 		queueid = 0;
 		for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
 			if (rte_lcore_is_enabled(lcore_id) == 0)

examples/ip_pipeline/kni.c

@@ -109,6 +109,7 @@ kni_create(const char *name, struct kni_params *params)
 	struct rte_kni *k;
 	const struct rte_pci_device *pci_dev;
 	const struct rte_bus *bus = NULL;
+	int ret;
 
 	/* Check input params */
 	if ((name == NULL) ||
@@ -123,7 +124,9 @@ kni_create(const char *name, struct kni_params *params)
 		return NULL;
 
 	/* Resource create */
-	rte_eth_dev_info_get(link->port_id, &dev_info);
+	ret = rte_eth_dev_info_get(link->port_id, &dev_info);
+	if (ret != 0)
+		return NULL;
 
 	memset(&kni_conf, 0, sizeof(kni_conf));
 	strlcpy(kni_conf.name, name, RTE_KNI_NAMESIZE);

examples/ip_pipeline/link.c

@@ -129,7 +129,8 @@ link_create(const char *name, struct link_params *params)
 		if (!rte_eth_dev_is_valid_port(port_id))
 			return NULL;
 
-	rte_eth_dev_info_get(port_id, &port_info);
+	if (rte_eth_dev_info_get(port_id, &port_info) != 0)
+		return NULL;
 
 	mempool = mempool_find(params->rx.mempool_name);
 	if (mempool == NULL)

examples/ip_reassembly/main.c

@@ -1038,7 +1038,12 @@ main(int argc, char **argv)
 		qconf = &lcore_queue_conf[rx_lcore_id];
 
 		/* limit the frame size to the maximum supported by NIC */
-		rte_eth_dev_info_get(portid, &dev_info);
+		ret = rte_eth_dev_info_get(portid, &dev_info);
+		if (ret != 0)
+			rte_exit(EXIT_FAILURE,
+				"Error during getting device (port %u) info: %s\n",
+				portid, strerror(-ret));
+
 		local_port_conf.rxmode.max_rx_pkt_len = RTE_MIN(
 		    dev_info.max_rx_pktlen,
 		    local_port_conf.rxmode.max_rx_pkt_len);

examples/ipv4_multicast/main.c

@@ -686,7 +686,12 @@ main(int argc, char **argv)
 		qconf = &lcore_queue_conf[rx_lcore_id];
 
 		/* limit the frame size to the maximum supported by NIC */
-		rte_eth_dev_info_get(portid, &dev_info);
+		ret = rte_eth_dev_info_get(portid, &dev_info);
+		if (ret != 0)
+			rte_exit(EXIT_FAILURE,
+				"Error during getting device (port %u) info: %s\n",
+				portid, strerror(-ret));
+
 		local_port_conf.rxmode.max_rx_pkt_len = RTE_MIN(
 		    dev_info.max_rx_pktlen,
 		    local_port_conf.rxmode.max_rx_pkt_len);

examples/kni/main.c

@@ -595,7 +595,13 @@ init_port(uint16_t port)
 	/* Initialise device and RX/TX queues */
 	RTE_LOG(INFO, APP, "Initialising port %u ...\n", (unsigned)port);
 	fflush(stdout);
-	rte_eth_dev_info_get(port, &dev_info);
+
+	ret = rte_eth_dev_info_get(port, &dev_info);
+	if (ret != 0)
+		rte_exit(EXIT_FAILURE,
+			"Error during getting device (port %u) info: %s\n",
+			port, strerror(-ret));
+
 	if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 		local_port_conf.txmode.offloads |=
 			DEV_TX_OFFLOAD_MBUF_FAST_FREE;
@@ -780,7 +786,15 @@ kni_change_mtu(uint16_t port_id, unsigned int new_mtu)
 				"for port%u (%d)\n", (unsigned int)port_id,
 				ret);
 
-	rte_eth_dev_info_get(port_id, &dev_info);
+	ret = rte_eth_dev_info_get(port_id, &dev_info);
+	if (ret != 0) {
+		RTE_LOG(ERR, APP,
+			"Error during getting device (port %u) info: %s\n",
+			port_id, strerror(-ret));
+
+		return ret;
+	}
+
 	rxq_conf = dev_info.default_rxconf;
 	rxq_conf.offloads = conf.rxmode.offloads;
 	ret = rte_eth_rx_queue_setup(port_id, 0, nb_rxd,
@@ -869,6 +883,7 @@ kni_alloc(uint16_t port_id)
 	struct rte_kni *kni;
 	struct rte_kni_conf conf;
 	struct kni_port_params **params = kni_port_params_array;
+	int ret;
 
 	if (port_id >= RTE_MAX_ETHPORTS || !params[port_id])
 		return -1;
@@ -898,7 +913,11 @@ kni_alloc(uint16_t port_id)
 			struct rte_kni_ops ops;
 			struct rte_eth_dev_info dev_info;
 
-			rte_eth_dev_info_get(port_id, &dev_info);
+			ret = rte_eth_dev_info_get(port_id, &dev_info);
+			if (ret != 0)
+				rte_exit(EXIT_FAILURE,
+					"Error during getting device (port %u) info: %s\n",
+					port_id, strerror(-ret));
 
 			/* Get the interface default mac address */
 			rte_eth_macaddr_get(port_id,

examples/l2fwd-crypto/main.c

@@ -2513,7 +2513,14 @@ initialize_ports(struct l2fwd_crypto_options *options)
 		/* init port */
 		printf("Initializing port %u... ", portid);
 		fflush(stdout);
-		rte_eth_dev_info_get(portid, &dev_info);
+
+		retval = rte_eth_dev_info_get(portid, &dev_info);
+		if (retval != 0) {
+			printf("Error during getting device (port %u) info: %s\n",
+					portid, strerror(-retval));
+			return retval;
+		}
+
 		if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 			local_port_conf.txmode.offloads |=
 				DEV_TX_OFFLOAD_MBUF_FAST_FREE;

examples/l2fwd-jobstats/main.c

@@ -842,7 +842,13 @@ main(int argc, char **argv)
 		/* init port */
 		printf("Initializing port %u... ", portid);
 		fflush(stdout);
-		rte_eth_dev_info_get(portid, &dev_info);
+
+		ret = rte_eth_dev_info_get(portid, &dev_info);
+		if (ret != 0)
+			rte_exit(EXIT_FAILURE,
+				"Error during getting device (port %u) info: %s\n",
+				portid, strerror(-ret));
+
 		if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 			local_port_conf.txmode.offloads |=
 				DEV_TX_OFFLOAD_MBUF_FAST_FREE;

examples/l2fwd-keepalive/main.c

@@ -634,7 +634,13 @@ main(int argc, char **argv)
 		/* init port */
 		printf("Initializing port %u... ", portid);
 		fflush(stdout);
-		rte_eth_dev_info_get(portid, &dev_info);
+
+		ret = rte_eth_dev_info_get(portid, &dev_info);
+		if (ret != 0)
+			rte_exit(EXIT_FAILURE,
+				"Error during getting device (port %u) info: %s\n",
+				portid, strerror(-ret));
+
 		if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 			local_port_conf.txmode.offloads |=
 				DEV_TX_OFFLOAD_MBUF_FAST_FREE;

examples/l2fwd/main.c

@@ -635,7 +635,13 @@ main(int argc, char **argv)
 		/* init port */
 		printf("Initializing port %u... ", portid);
 		fflush(stdout);
-		rte_eth_dev_info_get(portid, &dev_info);
+
+		ret = rte_eth_dev_info_get(portid, &dev_info);
+		if (ret != 0)
+			rte_exit(EXIT_FAILURE,
+				"Error during getting device (port %u) info: %s\n",
+				portid, strerror(-ret));
+
 		if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 			local_port_conf.txmode.offloads |=
 				DEV_TX_OFFLOAD_MBUF_FAST_FREE;

examples/l3fwd-acl/main.c

@@ -1924,7 +1924,13 @@ main(int argc, char **argv)
 			n_tx_queue = MAX_TX_QUEUE_PER_PORT;
 		printf("Creating queues: nb_rxq=%d nb_txq=%u... ",
 			nb_rx_queue, (unsigned)n_tx_queue);
-		rte_eth_dev_info_get(portid, &dev_info);
+
+		ret = rte_eth_dev_info_get(portid, &dev_info);
+		if (ret != 0)
+			rte_exit(EXIT_FAILURE,
+				"Error during getting device (port %u) info: %s\n",
+				portid, strerror(-ret));
+
 		if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 			local_port_conf.txmode.offloads |=
 				DEV_TX_OFFLOAD_MBUF_FAST_FREE;
@@ -1994,7 +2000,12 @@ main(int argc, char **argv)
 			printf("txq=%u,%d,%d ", lcore_id, queueid, socketid);
 			fflush(stdout);
 
-			rte_eth_dev_info_get(portid, &dev_info);
+			ret = rte_eth_dev_info_get(portid, &dev_info);
+			if (ret != 0)
+				rte_exit(EXIT_FAILURE,
+					"Error during getting device (port %u) info: %s\n",
+					portid, strerror(-ret));
+
 			txconf = &dev_info.default_txconf;
 			txconf->offloads = local_port_conf.txmode.offloads;
 			ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
@@ -2036,7 +2047,12 @@ main(int argc, char **argv)
 			printf("rxq=%d,%d,%d ", portid, queueid, socketid);
 			fflush(stdout);
 
-			rte_eth_dev_info_get(portid, &dev_info);
+			ret = rte_eth_dev_info_get(portid, &dev_info);
+			if (ret != 0)
+				rte_exit(EXIT_FAILURE,
+					"Error during getting device (port %u) info: %s\n",
+					portid, strerror(-ret));
+
 			rxq_conf = dev_info.default_rxconf;
 			rxq_conf.offloads = port_conf.rxmode.offloads;
 			ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,

examples/l3fwd-power/main.c

@@ -2257,7 +2257,12 @@ main(int argc, char **argv)
 		printf("Initializing port %d ... ", portid );
 		fflush(stdout);
 
-		rte_eth_dev_info_get(portid, &dev_info);
+		ret = rte_eth_dev_info_get(portid, &dev_info);
+		if (ret != 0)
+			rte_exit(EXIT_FAILURE,
+				"Error during getting device (port %u) info: %s\n",
+				portid, strerror(-ret));
+
 		dev_rxq_num = dev_info.max_rx_queues;
 		dev_txq_num = dev_info.max_tx_queues;
 
@@ -2275,7 +2280,13 @@ main(int argc, char **argv)
 		/* If number of Rx queue is 0, no need to enable Rx interrupt */
 		if (nb_rx_queue == 0)
 			local_port_conf.intr_conf.rxq = 0;
-		rte_eth_dev_info_get(portid, &dev_info);
+
+		ret = rte_eth_dev_info_get(portid, &dev_info);
+		if (ret != 0)
+			rte_exit(EXIT_FAILURE,
+				"Error during getting device (port %u) info: %s\n",
+				portid, strerror(-ret));
+
 		if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 			local_port_conf.txmode.offloads |=
 				DEV_TX_OFFLOAD_MBUF_FAST_FREE;
@@ -2398,7 +2409,12 @@ main(int argc, char **argv)
 			printf("rxq=%d,%d,%d ", portid, queueid, socketid);
 			fflush(stdout);
 
-			rte_eth_dev_info_get(portid, &dev_info);
+			ret = rte_eth_dev_info_get(portid, &dev_info);
+			if (ret != 0)
+				rte_exit(EXIT_FAILURE,
+					"Error during getting device (port %u) info: %s\n",
+					portid, strerror(-ret));
+
 			rxq_conf = dev_info.default_rxconf;
 			rxq_conf.offloads = port_conf.rxmode.offloads;
 			ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,

examples/l3fwd/main.c

@@ -874,7 +874,12 @@ main(int argc, char **argv)
 		printf("Creating queues: nb_rxq=%d nb_txq=%u... ",
 			nb_rx_queue, (unsigned)n_tx_queue );
 
-		rte_eth_dev_info_get(portid, &dev_info);
+		ret = rte_eth_dev_info_get(portid, &dev_info);
+		if (ret != 0)
+			rte_exit(EXIT_FAILURE,
+				"Error during getting device (port %u) info: %s\n",
+				portid, strerror(-ret));
+
 		if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 			local_port_conf.txmode.offloads |=
 				DEV_TX_OFFLOAD_MBUF_FAST_FREE;
@@ -985,7 +990,12 @@ main(int argc, char **argv)
 			printf("rxq=%d,%d,%d ", portid, queueid, socketid);
 			fflush(stdout);
 
-			rte_eth_dev_info_get(portid, &dev_info);
+			ret = rte_eth_dev_info_get(portid, &dev_info);
+			if (ret != 0)
+				rte_exit(EXIT_FAILURE,
+					"Error during getting device (port %u) info: %s\n",
+					portid, strerror(-ret));
+
 			rxq_conf = dev_info.default_rxconf;
 			rxq_conf.offloads = port_conf.rxmode.offloads;
 			if (!per_port_pool)

examples/link_status_interrupt/main.c

@@ -609,7 +609,13 @@ main(int argc, char **argv)
 		/* init port */
 		printf("Initializing port %u... ", (unsigned) portid);
 		fflush(stdout);
-		rte_eth_dev_info_get(portid, &dev_info);
+
+		ret = rte_eth_dev_info_get(portid, &dev_info);
+		if (ret != 0)
+			rte_exit(EXIT_FAILURE,
+				"Error during getting device (port %u) info: %s\n",
+				portid, strerror(-ret));
+
 		if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 			local_port_conf.txmode.offloads |=
 				DEV_TX_OFFLOAD_MBUF_FAST_FREE;

examples/load_balancer/init.c

@@ -411,7 +411,12 @@ app_init_nics(void)
 
 		/* Init port */
 		printf("Initializing NIC port %u ...\n", port);
-		rte_eth_dev_info_get(port, &dev_info);
+
+		ret = rte_eth_dev_info_get(port, &dev_info);
+		if (ret != 0)
+			rte_panic("Error during getting device (port %u) info: %s\n",
+				port, strerror(-ret));
+
 		if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 			local_port_conf.txmode.offloads |=
 				DEV_TX_OFFLOAD_MBUF_FAST_FREE;

examples/multi_process/symmetric_mp/main.c

@@ -209,7 +209,13 @@ smp_port_init(uint16_t port, struct rte_mempool *mbuf_pool,
 	printf("# Initialising port %u... ", port);
 	fflush(stdout);
 
-	rte_eth_dev_info_get(port, &info);
+	retval = rte_eth_dev_info_get(port, &info);
+	if (retval != 0) {
+		printf("Error during getting device (port %u) info: %s\n",
+				port, strerror(-retval));
+		return retval;
+	}
+
 	info.default_rxconf.rx_drop_en = 1;
 
 	if (info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)

examples/netmap_compat/lib/compat_netmap.c

@@ -684,7 +684,14 @@ rte_netmap_init_port(uint16_t portid, const struct rte_netmap_port_conf *conf)
 		return -EINVAL;
 	}
 
-	rte_eth_dev_info_get(portid, &dev_info);
+	ret = rte_eth_dev_info_get(portid, &dev_info);
+	if (ret != 0) {
+		RTE_LOG(ERR, USER1,
+			"Error during getting device (port %u) info: %s\n",
+			portid, strerror(-ret));
+		return ret;
+	}
+
 	if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 		conf->eth_conf->txmode.offloads |=
 			DEV_TX_OFFLOAD_MBUF_FAST_FREE;

examples/packet_ordering/main.c

@@ -283,7 +283,13 @@ configure_eth_port(uint16_t port_id)
 	if (!rte_eth_dev_is_valid_port(port_id))
 		return -1;
 
-	rte_eth_dev_info_get(port_id, &dev_info);
+	ret = rte_eth_dev_info_get(port_id, &dev_info);
+	if (ret != 0) {
+		printf("Error during getting device (port %u) info: %s\n",
+				port_id, strerror(-ret));
+		return ret;
+	}
+
 	if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 		port_conf.txmode.offloads |=
 			DEV_TX_OFFLOAD_MBUF_FAST_FREE;

examples/performance-thread/l3fwd-thread/main.c

@@ -3559,7 +3559,13 @@ main(int argc, char **argv)
 			n_tx_queue = MAX_TX_QUEUE_PER_PORT;
 		printf("Creating queues: nb_rxq=%d nb_txq=%u... ",
 			nb_rx_queue, (unsigned)n_tx_queue);
-		rte_eth_dev_info_get(portid, &dev_info);
+
+		ret = rte_eth_dev_info_get(portid, &dev_info);
+		if (ret != 0)
+			rte_exit(EXIT_FAILURE,
+				"Error during getting device (port %u) info: %s\n",
+				portid, strerror(-ret));
+
 		if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 			local_port_conf.txmode.offloads |=
 				DEV_TX_OFFLOAD_MBUF_FAST_FREE;
@@ -3663,7 +3669,12 @@ main(int argc, char **argv)
 			printf("rxq=%d,%d,%d ", portid, queueid, socketid);
 			fflush(stdout);
 
-			rte_eth_dev_info_get(portid, &dev_info);
+			ret = rte_eth_dev_info_get(portid, &dev_info);
+			if (ret != 0)
+				rte_exit(EXIT_FAILURE,
+					"Error during getting device (port %u) info: %s\n",
+					portid, strerror(-ret));
+
 			rxq_conf = dev_info.default_rxconf;
 			rxq_conf.offloads = port_conf.rxmode.offloads;
 			ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,

examples/ptpclient/ptpclient.c

@@ -189,7 +189,14 @@ port_init(uint16_t port, struct rte_mempool *mbuf_pool)
 	if (!rte_eth_dev_is_valid_port(port))
 		return -1;
 
-	rte_eth_dev_info_get(port, &dev_info);
+	retval = rte_eth_dev_info_get(port, &dev_info);
+	if (retval != 0) {
+		printf("Error during getting device (port %u) info: %s\n",
+				port, strerror(-retval));
+
+		return retval;
+	}
+
 	if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 		port_conf.txmode.offloads |=
 			DEV_TX_OFFLOAD_MBUF_FAST_FREE;

examples/qos_meter/main.c

@@ -329,7 +329,13 @@ main(int argc, char **argv)
 
 	/* NIC init */
 	conf = port_conf;
-	rte_eth_dev_info_get(port_rx, &dev_info);
+
+	ret = rte_eth_dev_info_get(port_rx, &dev_info);
+	if (ret != 0)
+		rte_exit(EXIT_FAILURE,
+			"Error during getting device (port %u) info: %s\n",
+			port_rx, strerror(-ret));
+
 	if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 		conf.txmode.offloads |= DEV_TX_OFFLOAD_MBUF_FAST_FREE;
 
@@ -369,7 +375,13 @@ main(int argc, char **argv)
 	rte_exit(EXIT_FAILURE, "Port %d TX queue setup error (%d)\n", port_rx, ret);
 
 	conf = port_conf;
-	rte_eth_dev_info_get(port_tx, &dev_info);
+
+	ret = rte_eth_dev_info_get(port_tx, &dev_info);
+	if (ret != 0)
+		rte_exit(EXIT_FAILURE,
+			"Error during getting device (port %u) info: %s\n",
+			port_tx, strerror(-ret));
+
 	if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 		conf.txmode.offloads |= DEV_TX_OFFLOAD_MBUF_FAST_FREE;
 

examples/rxtx_callbacks/main.c

@@ -112,7 +112,14 @@ port_init(uint16_t port, struct rte_mempool *mbuf_pool)
 	if (!rte_eth_dev_is_valid_port(port))
 		return -1;
 
-	rte_eth_dev_info_get(port, &dev_info);
+	retval = rte_eth_dev_info_get(port, &dev_info);
+	if (retval != 0) {
+		printf("Error during getting device (port %u) info: %s\n",
+				port, strerror(-retval));
+
+		return retval;
+	}
+
 	if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 		port_conf.txmode.offloads |=
 			DEV_TX_OFFLOAD_MBUF_FAST_FREE;

examples/server_node_efd/server/init.c

@@ -111,7 +111,10 @@ init_port(uint16_t port_num)
 	printf("Port %u init ... ", port_num);
 	fflush(stdout);
 
-	rte_eth_dev_info_get(port_num, &dev_info);
+	retval = rte_eth_dev_info_get(port_num, &dev_info);
+	if (retval != 0)
+		return retval;
+
 	if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 		port_conf.txmode.offloads |=
 			DEV_TX_OFFLOAD_MBUF_FAST_FREE;

examples/skeleton/basicfwd.c

@@ -44,7 +44,13 @@ port_init(uint16_t port, struct rte_mempool *mbuf_pool)
 	if (!rte_eth_dev_is_valid_port(port))
 		return -1;
 
-	rte_eth_dev_info_get(port, &dev_info);
+	retval = rte_eth_dev_info_get(port, &dev_info);
+	if (retval != 0) {
+		printf("Error during getting device (port %u) info: %s\n",
+				port, strerror(-retval));
+		return retval;
+	}
+
 	if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 		port_conf.txmode.offloads |=
 			DEV_TX_OFFLOAD_MBUF_FAST_FREE;

examples/tep_termination/vxlan_setup.c

@@ -119,7 +119,11 @@ vxlan_port_init(uint16_t port, struct rte_mempool *mbuf_pool)
 
 	pconf->dst_port = udp_port;
 
-	rte_eth_dev_info_get(port, &dev_info);
+	retval = rte_eth_dev_info_get(port, &dev_info);
+	if (retval != 0)
+		rte_exit(EXIT_FAILURE,
+			"Error during getting device (port %u) info: %s\n",
+			port, strerror(-retval));
 
 	if (dev_info.max_rx_queues > MAX_QUEUES) {
 		rte_exit(EXIT_FAILURE,

examples/vm_power_manager/main.c

@@ -71,7 +71,13 @@ port_init(uint16_t port, struct rte_mempool *mbuf_pool)
 	if (!rte_eth_dev_is_valid_port(port))
 		return -1;
 
-	rte_eth_dev_info_get(port, &dev_info);
+	retval = rte_eth_dev_info_get(port, &dev_info);
+	if (retval != 0) {
+		printf("Error during getting device (port %u) info: %s\n",
+				port, strerror(-retval));
+		return retval;
+	}
+
 	if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 		port_conf.txmode.offloads |=
 			DEV_TX_OFFLOAD_MBUF_FAST_FREE;

examples/vmdq/main.c

@@ -169,7 +169,13 @@ port_init(uint16_t port, struct rte_mempool *mbuf_pool)
 	 * The max pool number from dev_info will be used to validate the pool
 	 * number specified in cmd line
 	 */
-	rte_eth_dev_info_get(port, &dev_info);
+	retval = rte_eth_dev_info_get(port, &dev_info);
+	if (retval != 0) {
+		printf("Error during getting device (port %u) info: %s\n",
+				port, strerror(-retval));
+		return retval;
+	}
+
 	max_nb_pools = (uint32_t)dev_info.max_vmdq_pools;
 	/*
 	 * We allow to process part of VMDQ pools specified by num_pools in
@@ -214,7 +220,13 @@ port_init(uint16_t port, struct rte_mempool *mbuf_pool)
 	rxRings = (uint16_t)dev_info.max_rx_queues;
 	txRings = (uint16_t)dev_info.max_tx_queues;
 
-	rte_eth_dev_info_get(port, &dev_info);
+	retval = rte_eth_dev_info_get(port, &dev_info);
+	if (retval != 0) {
+		printf("Error during getting device (port %u) info: %s\n",
+				port, strerror(-retval));
+		return retval;
+	}
+
 	if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 		port_conf.txmode.offloads |=
 			DEV_TX_OFFLOAD_MBUF_FAST_FREE;

examples/vmdq_dcb/main.c

@@ -202,7 +202,14 @@ port_init(uint16_t port, struct rte_mempool *mbuf_pool)
 	 * The max pool number from dev_info will be used to validate the pool
 	 * number specified in cmd line
 	 */
-	rte_eth_dev_info_get(port, &dev_info);
+	retval = rte_eth_dev_info_get(port, &dev_info);
+	if (retval != 0) {
+		printf("Error during getting device (port %u) info: %s\n",
+				port, strerror(-retval));
+
+		return retval;
+	}
+
 	max_nb_pools = (uint32_t)dev_info.max_vmdq_pools;
 	/*
 	 * We allow to process part of VMDQ pools specified by num_pools in
@@ -253,7 +260,14 @@ port_init(uint16_t port, struct rte_mempool *mbuf_pool)
 	if (retval < 0)
 		return retval;
 
-	rte_eth_dev_info_get(port, &dev_info);
+	retval = rte_eth_dev_info_get(port, &dev_info);
+	if (retval != 0) {
+		printf("Error during getting device (port %u) info: %s\n",
+				port, strerror(-retval));
+
+		return retval;
+	}
+
 	if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 		port_conf.txmode.offloads |=
 			DEV_TX_OFFLOAD_MBUF_FAST_FREE;