text: /* SPDX-License-Identifier: BSD-3-Clause
   * Copyright(c) 2010-2017 Intel Corporation
   */
  
  #include <stdarg.h>
  #include <stdio.h>
  #include <stdlib.h>
  #include <signal.h>
  #include <string.h>
  #include <time.h>
  #include <fcntl.h>
  #include <sys/mman.h>
  #include <sys/types.h>
  #include <errno.h>
  #include <stdbool.h>
  
  #include <sys/queue.h>
  #include <sys/stat.h>
  
  #include <stdint.h>
  #include <unistd.h>
  #include <inttypes.h>
  
  #include <rte_common.h>
  #include <rte_errno.h>
  #include <rte_byteorder.h>
  #include <rte_log.h>
  #include <rte_debug.h>
  #include <rte_cycles.h>
  #include <rte_memory.h>
  #include <rte_memcpy.h>
  #include <rte_launch.h>
  #include <rte_eal.h>
  #include <rte_alarm.h>
  #include <rte_per_lcore.h>
  #include <rte_lcore.h>
  #include <rte_atomic.h>
  #include <rte_branch_prediction.h>
  #include <rte_mempool.h>
  #include <rte_malloc.h>
  #include <rte_mbuf.h>
  #include <rte_mbuf_pool_ops.h>
  #include <rte_interrupts.h>
  #include <rte_pci.h>
  #include <rte_ether.h>
  #include <rte_ethdev.h>
  #include <rte_dev.h>
  #include <rte_string_fns.h>
  #ifdef RTE_LIBRTE_IXGBE_PMD
  #include <rte_pmd_ixgbe.h>
  #endif
  #ifdef RTE_LIBRTE_PDUMP
  #include <rte_pdump.h>
  #endif
  #include <rte_flow.h>
  #include <rte_metrics.h>
  #ifdef RTE_LIBRTE_BITRATE
  #include <rte_bitrate.h>
  #endif
  #ifdef RTE_LIBRTE_LATENCY_STATS
  #include <rte_latencystats.h>
  #endif
  
  #include "testpmd.h"
  
  uint16_t verbose_level = 0; /**< Silent by default. */
  int testpmd_logtype; /**< Log type for testpmd logs */
  
  /* use master core for command line ? */
  uint8_t interactive = 0;
  uint8_t auto_start = 0;
  uint8_t tx_first;
  char cmdline_filename[PATH_MAX] = {0};
  
  /*
   * NUMA support configuration.
   * When set, the NUMA support attempts to dispatch the allocation of the
   * RX and TX memory rings, and of the DMA memory buffers (mbufs) for the
   * probed ports among the CPU sockets 0 and 1.
   * Otherwise, all memory is allocated from CPU socket 0.
   */
  uint8_t numa_support = 1; /**< numa enabled by default */
  
  /*
   * In UMA mode,all memory is allocated from socket 0 if --socket-num is
   * not configured.
   */
  uint8_t socket_num = UMA_NO_CONFIG;
  
  /*
   * Use ANONYMOUS mapped memory (might be not physically continuous) for mbufs.
   */
  uint8_t mp_anon = 0;
  
  /*
   * Store specified sockets on which memory pool to be used by ports
   * is allocated.
   */
  uint8_t port_numa[RTE_MAX_ETHPORTS];
  
  /*
   * Store specified sockets on which RX ring to be used by ports
   * is allocated.
   */
  uint8_t rxring_numa[RTE_MAX_ETHPORTS];
  
  /*
   * Store specified sockets on which TX ring to be used by ports
   * is allocated.
   */
  uint8_t txring_numa[RTE_MAX_ETHPORTS];
  
  /*
   * Record the Ethernet address of peer target ports to which packets are
   * forwarded.
   * Must be instantiated with the ethernet addresses of peer traffic generator
   * ports.
   */
  struct ether_addr peer_eth_addrs[RTE_MAX_ETHPORTS];
  portid_t nb_peer_eth_addrs = 0;
  
  /*
   * Probed Target Environment.
   */
  struct rte_port *ports;	       /**< For all probed ethernet ports. */
  portid_t nb_ports;             /**< Number of probed ethernet ports. */
  struct fwd_lcore **fwd_lcores; /**< For all probed logical cores. */
  lcoreid_t nb_lcores;           /**< Number of probed logical cores. */
  
  /*
   * Test Forwarding Configuration.
   *    nb_fwd_lcores <= nb_cfg_lcores <= nb_lcores
   *    nb_fwd_ports  <= nb_cfg_ports  <= nb_ports
   */
  lcoreid_t nb_cfg_lcores; /**< Number of configured logical cores. */
  lcoreid_t nb_fwd_lcores; /**< Number of forwarding logical cores. */
  portid_t  nb_cfg_ports;  /**< Number of configured ports. */
  portid_t  nb_fwd_ports;  /**< Number of forwarding ports. */
  
  unsigned int fwd_lcores_cpuids[RTE_MAX_LCORE]; /**< CPU ids configuration. */
  portid_t fwd_ports_ids[RTE_MAX_ETHPORTS];      /**< Port ids configuration. */
  
  struct fwd_stream **fwd_streams; /**< For each RX queue of each port. */
  streamid_t nb_fwd_streams;       /**< Is equal to (nb_ports * nb_rxq). */
  
  /*
   * Forwarding engines.
   */
  struct fwd_engine * fwd_engines[] = {
  	&io_fwd_engine,
  	&mac_fwd_engine,
  	&mac_swap_engine,
  	&flow_gen_engine,
  	&rx_only_engine,
  	&tx_only_engine,
  	&csum_fwd_engine,
  	&icmp_echo_engine,
  #if defined RTE_LIBRTE_PMD_SOFTNIC && defined RTE_LIBRTE_SCHED
  	&softnic_tm_engine,
  	&softnic_tm_bypass_engine,
  #endif
  #ifdef RTE_LIBRTE_IEEE1588
  	&ieee1588_fwd_engine,
  #endif
  	NULL,
  };
  
  struct fwd_config cur_fwd_config;
  struct fwd_engine *cur_fwd_eng = &io_fwd_engine; /**< IO mode by default. */
  uint32_t retry_enabled;
  uint32_t burst_tx_delay_time = BURST_TX_WAIT_US;
  uint32_t burst_tx_retry_num = BURST_TX_RETRIES;
  
  uint16_t mbuf_data_size = DEFAULT_MBUF_DATA_SIZE; /**< Mbuf data space size. */
  uint32_t param_total_num_mbufs = 0;  /**< number of mbufs in all pools - if
                                        * specified on command-line. */
  uint16_t stats_period; /**< Period to show statistics (disabled by default) */
  
  /*
   * In container, it cannot terminate the process which running with 'stats-period'
   * option. Set flag to exit stats period loop after received SIGINT/SIGTERM.
   */
  uint8_t f_quit;
  
  /*
   * Configuration of packet segments used by the "txonly" processing engine.
   */
  uint16_t tx_pkt_length = TXONLY_DEF_PACKET_LEN; /**< TXONLY packet length. */
  uint16_t tx_pkt_seg_lengths[RTE_MAX_SEGS_PER_PKT] = {
  	TXONLY_DEF_PACKET_LEN,
  };
  uint8_t  tx_pkt_nb_segs = 1; /**< Number of segments in TXONLY packets */
  
  enum tx_pkt_split tx_pkt_split = TX_PKT_SPLIT_OFF;
  /**< Split policy for packets to TX. */
  
  uint16_t nb_pkt_per_burst = DEF_PKT_BURST; /**< Number of packets per burst. */
  uint16_t mb_mempool_cache = DEF_MBUF_CACHE; /**< Size of mbuf mempool cache. */
  
  /* current configuration is in DCB or not,0 means it is not in DCB mode */
  uint8_t dcb_config = 0;
  
  /* Whether the dcb is in testing status */
  uint8_t dcb_test = 0;
  
  /*
   * Configurable number of RX/TX queues.
   */
  queueid_t nb_rxq = 1; /**< Number of RX queues per port. */
  queueid_t nb_txq = 1; /**< Number of TX queues per port. */
  
  /*
   * Configurable number of RX/TX ring descriptors.
   * Defaults are supplied by drivers via ethdev.
   */
  #define RTE_TEST_RX_DESC_DEFAULT 0
  #define RTE_TEST_TX_DESC_DEFAULT 0
  uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT; /**< Number of RX descriptors. */
  uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT; /**< Number of TX descriptors. */
  
  #define RTE_PMD_PARAM_UNSET -1
  /*
   * Configurable values of RX and TX ring threshold registers.
   */
  
  int8_t rx_pthresh = RTE_PMD_PARAM_UNSET;
  int8_t rx_hthresh = RTE_PMD_PARAM_UNSET;
  int8_t rx_wthresh = RTE_PMD_PARAM_UNSET;
  
  int8_t tx_pthresh = RTE_PMD_PARAM_UNSET;
  int8_t tx_hthresh = RTE_PMD_PARAM_UNSET;
  int8_t tx_wthresh = RTE_PMD_PARAM_UNSET;
  
  /*
   * Configurable value of RX free threshold.
   */
  int16_t rx_free_thresh = RTE_PMD_PARAM_UNSET;
  
  /*
   * Configurable value of RX drop enable.
   */
  int8_t rx_drop_en = RTE_PMD_PARAM_UNSET;
  
  /*
   * Configurable value of TX free threshold.
   */
  int16_t tx_free_thresh = RTE_PMD_PARAM_UNSET;
  
  /*
   * Configurable value of TX RS bit threshold.
   */
  int16_t tx_rs_thresh = RTE_PMD_PARAM_UNSET;
  
  /*
   * Receive Side Scaling (RSS) configuration.
   */
  uint64_t rss_hf = ETH_RSS_IP; /* RSS IP by default. */
  
  /*
   * Port topology configuration
   */
  uint16_t port_topology = PORT_TOPOLOGY_PAIRED; /* Ports are paired by default */
  
  /*
   * Avoids to flush all the RX streams before starts forwarding.
   */
  uint8_t no_flush_rx = 0; /* flush by default */
  
  /*
   * Flow API isolated mode.
   */
  uint8_t flow_isolate_all;
  
  /*
   * Avoids to check link status when starting/stopping a port.
   */
  uint8_t no_link_check = 0; /* check by default */
  
  /*
   * Enable link status change notification
   */
  uint8_t lsc_interrupt = 1; /* enabled by default */
  
  /*
   * Enable device removal notification.
   */
  uint8_t rmv_interrupt = 1; /* enabled by default */
  
  uint8_t hot_plug = 0; /**< hotplug disabled by default. */
  
  /*
   * Display or mask ether events
   * Default to all events except VF_MBOX
   */
  uint32_t event_print_mask = (UINT32_C(1) << RTE_ETH_EVENT_UNKNOWN) |
  			    (UINT32_C(1) << RTE_ETH_EVENT_INTR_LSC) |
  			    (UINT32_C(1) << RTE_ETH_EVENT_QUEUE_STATE) |
  			    (UINT32_C(1) << RTE_ETH_EVENT_INTR_RESET) |
  			    (UINT32_C(1) << RTE_ETH_EVENT_IPSEC) |
  			    (UINT32_C(1) << RTE_ETH_EVENT_MACSEC) |
  			    (UINT32_C(1) << RTE_ETH_EVENT_INTR_RMV);
  /*
   * Decide if all memory are locked for performance.
   */
  int do_mlockall = 0;
  
  /*
   * NIC bypass mode configuration options.
   */
  
  #if defined RTE_LIBRTE_IXGBE_PMD && defined RTE_LIBRTE_IXGBE_BYPASS
  /* The NIC bypass watchdog timeout. */
  uint32_t bypass_timeout = RTE_PMD_IXGBE_BYPASS_TMT_OFF;
  #endif
  
  
  #ifdef RTE_LIBRTE_LATENCY_STATS
  
  /*
   * Set when latency stats is enabled in the commandline
   */
  uint8_t latencystats_enabled;
  
  /*
   * Lcore ID to serive latency statistics.
   */
  lcoreid_t latencystats_lcore_id = -1;
  
  #endif
  
  /*
   * Ethernet device configuration.
   */
  struct rte_eth_rxmode rx_mode = {
  	.max_rx_pkt_len = ETHER_MAX_LEN, /**< Default maximum frame length. */
  	.offloads = DEV_RX_OFFLOAD_CRC_STRIP,
  	.ignore_offload_bitfield = 1,
  };
  
  struct rte_eth_txmode tx_mode = {
  	.offloads = DEV_TX_OFFLOAD_MBUF_FAST_FREE,
  };
  
  struct rte_fdir_conf fdir_conf = {
  	.mode = RTE_FDIR_MODE_NONE,
  	.pballoc = RTE_FDIR_PBALLOC_64K,
  	.status = RTE_FDIR_REPORT_STATUS,
  	.mask = {
  		.vlan_tci_mask = 0x0,
  		.ipv4_mask     = {
  			.src_ip = 0xFFFFFFFF,
  			.dst_ip = 0xFFFFFFFF,
  		},
  		.ipv6_mask     = {
  			.src_ip = {0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF},
  			.dst_ip = {0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF},
  		},
  		.src_port_mask = 0xFFFF,
  		.dst_port_mask = 0xFFFF,
  		.mac_addr_byte_mask = 0xFF,
  		.tunnel_type_mask = 1,
  		.tunnel_id_mask = 0xFFFFFFFF,
  	},
  	.drop_queue = 127,
  };
  
  volatile int test_done = 1; /* stop packet forwarding when set to 1. */
  
  struct queue_stats_mappings tx_queue_stats_mappings_array[MAX_TX_QUEUE_STATS_MAPPINGS];
  struct queue_stats_mappings rx_queue_stats_mappings_array[MAX_RX_QUEUE_STATS_MAPPINGS];
  
  struct queue_stats_mappings *tx_queue_stats_mappings = tx_queue_stats_mappings_array;
  struct queue_stats_mappings *rx_queue_stats_mappings = rx_queue_stats_mappings_array;
  
  uint16_t nb_tx_queue_stats_mappings = 0;
  uint16_t nb_rx_queue_stats_mappings = 0;
  
  /*
   * Display zero values by default for xstats
   */
  uint8_t xstats_hide_zero;
  
  unsigned int num_sockets = 0;
  unsigned int socket_ids[RTE_MAX_NUMA_NODES];
  
  #ifdef RTE_LIBRTE_BITRATE
  /* Bitrate statistics */
  struct rte_stats_bitrates *bitrate_data;
  lcoreid_t bitrate_lcore_id;
  uint8_t bitrate_enabled;
  #endif
  
  struct gro_status gro_ports[RTE_MAX_ETHPORTS];
  uint8_t gro_flush_cycles = GRO_DEFAULT_FLUSH_CYCLES;
  
  /* Forward function declarations */
  static void map_port_queue_stats_mapping_registers(portid_t pi,
  						   struct rte_port *port);
  static void check_all_ports_link_status(uint32_t port_mask);
  static int eth_event_callback(portid_t port_id,
  			      enum rte_eth_event_type type,
  			      void *param, void *ret_param);
  static void eth_dev_event_callback(char *device_name,
  				enum rte_dev_event_type type,
  				void *param);
  static int eth_dev_event_callback_register(void);
  static int eth_dev_event_callback_unregister(void);
  
  
  /*
   * Check if all the ports are started.
   * If yes, return positive value. If not, return zero.
   */
  static int all_ports_started(void);
  
  struct gso_status gso_ports[RTE_MAX_ETHPORTS];
  uint16_t gso_max_segment_size = ETHER_MAX_LEN - ETHER_CRC_LEN;
  
  /*
   * Helper function to check if socket is already discovered.
   * If yes, return positive value. If not, return zero.
   */
  int
  new_socket_id(unsigned int socket_id)
  {
  	unsigned int i;
  
  	for (i = 0; i < num_sockets; i++) {
  		if (socket_ids[i] == socket_id)
  			return 0;
  	}
  	return 1;
  }
  
  /*
   * Setup default configuration.
   */
  static void
  set_default_fwd_lcores_config(void)
  {
  	unsigned int i;
  	unsigned int nb_lc;
  	unsigned int sock_num;
  
  	nb_lc = 0;
  	for (i = 0; i < RTE_MAX_LCORE; i++) {
  		sock_num = rte_lcore_to_socket_id(i);
  		if (new_socket_id(sock_num)) {
  			if (num_sockets >= RTE_MAX_NUMA_NODES) {
  				rte_exit(EXIT_FAILURE,
  					 "Total sockets greater than %u\n",
  					 RTE_MAX_NUMA_NODES);
  			}
  			socket_ids[num_sockets++] = sock_num;
  		}
  		if (!rte_lcore_is_enabled(i))
  			continue;
  		if (i == rte_get_master_lcore())
  			continue;
  		fwd_lcores_cpuids[nb_lc++] = i;
  	}
  	nb_lcores = (lcoreid_t) nb_lc;
  	nb_cfg_lcores = nb_lcores;
  	nb_fwd_lcores = 1;
  }
  
  static void
  set_def_peer_eth_addrs(void)
  {
  	portid_t i;
  
  	for (i = 0; i < RTE_MAX_ETHPORTS; i++) {
  		peer_eth_addrs[i].addr_bytes[0] = ETHER_LOCAL_ADMIN_ADDR;
  		peer_eth_addrs[i].addr_bytes[5] = i;
  	}
  }
  
  static void
  set_default_fwd_ports_config(void)
  {
  	portid_t pt_id;
  	int i = 0;
  
  	RTE_ETH_FOREACH_DEV(pt_id)
  		fwd_ports_ids[i++] = pt_id;
  
  	nb_cfg_ports = nb_ports;
  	nb_fwd_ports = nb_ports;
  }
  
  void
  set_def_fwd_config(void)
  {
  	set_default_fwd_lcores_config();
  	set_def_peer_eth_addrs();
  	set_default_fwd_ports_config();
  }
  
  /*
   * Configuration initialisation done once at init time.
   */
  static void
  mbuf_pool_create(uint16_t mbuf_seg_size, unsigned nb_mbuf,
  		 unsigned int socket_id)
  {
  	char pool_name[RTE_MEMPOOL_NAMESIZE];
  	struct rte_mempool *rte_mp = NULL;
  	uint32_t mb_size;
  
  	mb_size = sizeof(struct rte_mbuf) + mbuf_seg_size;
  	mbuf_poolname_build(socket_id, pool_name, sizeof(pool_name));
  
  	TESTPMD_LOG(INFO,
  		"create a new mbuf pool <%s>: n=%u, size=%u, socket=%u\n",
  		pool_name, nb_mbuf, mbuf_seg_size, socket_id);
  
  	if (mp_anon != 0) {
  		rte_mp = rte_mempool_create_empty(pool_name, nb_mbuf,
  			mb_size, (unsigned) mb_mempool_cache,
  			sizeof(struct rte_pktmbuf_pool_private),
  			socket_id, 0);
  		if (rte_mp == NULL)
  			goto err;
  
  		if (rte_mempool_populate_anon(rte_mp) == 0) {
  			rte_mempool_free(rte_mp);
  			rte_mp = NULL;
  			goto err;
  		}
  		rte_pktmbuf_pool_init(rte_mp, NULL);
  		rte_mempool_obj_iter(rte_mp, rte_pktmbuf_init, NULL);
  	} else {
  		/* wrapper to rte_mempool_create() */
  		TESTPMD_LOG(INFO, "preferred mempool ops selected: %s\n",
  				rte_mbuf_best_mempool_ops());
  		rte_mp = rte_pktmbuf_pool_create(pool_name, nb_mbuf,
  			mb_mempool_cache, 0, mbuf_seg_size, socket_id);
  	}
  
  err:
  	if (rte_mp == NULL) {
  		rte_exit(EXIT_FAILURE,
  			"Creation of mbuf pool for socket %u failed: %s\n",
  			socket_id, rte_strerror(rte_errno));
  	} else if (verbose_level > 0) {
  		rte_mempool_dump(stdout, rte_mp);
  	}
  }
  
  /*
   * Check given socket id is valid or not with NUMA mode,
   * if valid, return 0, else return -1
   */
  static int
  check_socket_id(const unsigned int socket_id)
  {
  	static int warning_once = 0;
  
  	if (new_socket_id(socket_id)) {
  		if (!warning_once && numa_support)
  			printf("Warning: NUMA should be configured manually by"
  			       " using --port-numa-config and"
  			       " --ring-numa-config parameters along with"
  			       " --numa.\n");
  		warning_once = 1;
  		return -1;
  	}
  	return 0;
  }
  
  /*
   * Get the allowed maximum number of RX queues.
   * *pid return the port id which has minimal value of
   * max_rx_queues in all ports.
   */
  queueid_t
  get_allowed_max_nb_rxq(portid_t *pid)
  {
  	queueid_t allowed_max_rxq = MAX_QUEUE_ID;
  	portid_t pi;
  	struct rte_eth_dev_info dev_info;
  
  	RTE_ETH_FOREACH_DEV(pi) {
  		rte_eth_dev_info_get(pi, &dev_info);
  		if (dev_info.max_rx_queues < allowed_max_rxq) {
  			allowed_max_rxq = dev_info.max_rx_queues;
  			*pid = pi;
  		}
  	}
  	return allowed_max_rxq;
  }
  
  /*
   * Check input rxq is valid or not.
   * If input rxq is not greater than any of maximum number
   * of RX queues of all ports, it is valid.
   * if valid, return 0, else return -1
   */
  int
  check_nb_rxq(queueid_t rxq)
  {
  	queueid_t allowed_max_rxq;
  	portid_t pid = 0;
  
  	allowed_max_rxq = get_allowed_max_nb_rxq(&pid);
  	if (rxq > allowed_max_rxq) {
  		printf("Fail: input rxq (%u) can't be greater "
  		       "than max_rx_queues (%u) of port %u\n",
  		       rxq,
  		       allowed_max_rxq,
  		       pid);
  		return -1;
  	}
  	return 0;
  }
  
  /*
   * Get the allowed maximum number of TX queues.
   * *pid return the port id which has minimal value of
   * max_tx_queues in all ports.
   */
  queueid_t
  get_allowed_max_nb_txq(portid_t *pid)
  {
  	queueid_t allowed_max_txq = MAX_QUEUE_ID;
  	portid_t pi;
  	struct rte_eth_dev_info dev_info;
  
  	RTE_ETH_FOREACH_DEV(pi) {
  		rte_eth_dev_info_get(pi, &dev_info);
  		if (dev_info.max_tx_queues < allowed_max_txq) {
  			allowed_max_txq = dev_info.max_tx_queues;
  			*pid = pi;
  		}
  	}
  	return allowed_max_txq;
  }
  
  /*
   * Check input txq is valid or not.
   * If input txq is not greater than any of maximum number
   * of TX queues of all ports, it is valid.
   * if valid, return 0, else return -1
   */
  int
  check_nb_txq(queueid_t txq)
  {
  	queueid_t allowed_max_txq;
  	portid_t pid = 0;
  
  	allowed_max_txq = get_allowed_max_nb_txq(&pid);
  	if (txq > allowed_max_txq) {
  		printf("Fail: input txq (%u) can't be greater "
  		       "than max_tx_queues (%u) of port %u\n",
  		       txq,
  		       allowed_max_txq,
  		       pid);
  		return -1;
  	}
  	return 0;
  }
  
  static void
  init_config(void)
  {
  	portid_t pid;
  	struct rte_port *port;
  	struct rte_mempool *mbp;
  	unsigned int nb_mbuf_per_pool;
  	lcoreid_t  lc_id;
  	uint8_t port_per_socket[RTE_MAX_NUMA_NODES];
  	struct rte_gro_param gro_param;
  	uint32_t gso_types;
  	int k;
  
  	memset(port_per_socket,0,RTE_MAX_NUMA_NODES);
  
  	if (numa_support) {
  		memset(port_numa, NUMA_NO_CONFIG, RTE_MAX_ETHPORTS);
  		memset(rxring_numa, NUMA_NO_CONFIG, RTE_MAX_ETHPORTS);
  		memset(txring_numa, NUMA_NO_CONFIG, RTE_MAX_ETHPORTS);
  	}
  
  	/* Configuration of logical cores. */
  	fwd_lcores = rte_zmalloc("testpmd: fwd_lcores",
  				sizeof(struct fwd_lcore *) * nb_lcores,
  				RTE_CACHE_LINE_SIZE);
  	if (fwd_lcores == NULL) {
  		rte_exit(EXIT_FAILURE, "rte_zmalloc(%d (struct fwd_lcore *)) "
  							"failed\n", nb_lcores);
  	}
  	for (lc_id = 0; lc_id < nb_lcores; lc_id++) {
  		fwd_lcores[lc_id] = rte_zmalloc("testpmd: struct fwd_lcore",
  					       sizeof(struct fwd_lcore),
  					       RTE_CACHE_LINE_SIZE);
  		if (fwd_lcores[lc_id] == NULL) {
  			rte_exit(EXIT_FAILURE, "rte_zmalloc(struct fwd_lcore) "
  								"failed\n");
  		}
  		fwd_lcores[lc_id]->cpuid_idx = lc_id;
  	}
  
  	RTE_ETH_FOREACH_DEV(pid) {
  		port = &ports[pid];
  		/* Apply default TxRx configuration for all ports */
  		port->dev_conf.txmode = tx_mode;
  		port->dev_conf.rxmode = rx_mode;
  		rte_eth_dev_info_get(pid, &port->dev_info);
  
  		if (!(port->dev_info.rx_offload_capa &
  					DEV_RX_OFFLOAD_CRC_STRIP))
  			port->dev_conf.rxmode.offloads &=
  				~DEV_RX_OFFLOAD_CRC_STRIP;
  		if (!(port->dev_info.tx_offload_capa &
  		      DEV_TX_OFFLOAD_MBUF_FAST_FREE))
  			port->dev_conf.txmode.offloads &=
  				~DEV_TX_OFFLOAD_MBUF_FAST_FREE;
  		if (numa_support) {
  			if (port_numa[pid] != NUMA_NO_CONFIG)
  				port_per_socket[port_numa[pid]]++;
  			else {
  				uint32_t socket_id = rte_eth_dev_socket_id(pid);
  
  				/* if socket_id is invalid, set to 0 */
  				if (check_socket_id(socket_id) < 0)
  					socket_id = 0;
  				port_per_socket[socket_id]++;
  			}
  		}
  
  		/* Apply Rx offloads configuration */
  		for (k = 0; k < port->dev_info.max_rx_queues; k++)
  			port->rx_conf[k].offloads =
  				port->dev_conf.rxmode.offloads;
  		/* Apply Tx offloads configuration */
  		for (k = 0; k < port->dev_info.max_tx_queues; k++)
  			port->tx_conf[k].offloads =
  				port->dev_conf.txmode.offloads;
  
  		/* set flag to initialize port/queue */
  		port->need_reconfig = 1;
  		port->need_reconfig_queues = 1;
  	}
  
  	/*
  	 * Create pools of mbuf.
  	 * If NUMA support is disabled, create a single pool of mbuf in
  	 * socket 0 memory by default.
  	 * Otherwise, create a pool of mbuf in the memory of sockets 0 and 1.
  	 *
  	 * Use the maximum value of nb_rxd and nb_txd here, then nb_rxd and
  	 * nb_txd can be configured at run time.
  	 */
  	if (param_total_num_mbufs)
  		nb_mbuf_per_pool = param_total_num_mbufs;
  	else {
  		nb_mbuf_per_pool = RTE_TEST_RX_DESC_MAX +
  			(nb_lcores * mb_mempool_cache) +
  			RTE_TEST_TX_DESC_MAX + MAX_PKT_BURST;
  		nb_mbuf_per_pool *= RTE_MAX_ETHPORTS;
  	}
  
  	if (numa_support) {
  		uint8_t i;
  
  		for (i = 0; i < num_sockets; i++)
  			mbuf_pool_create(mbuf_data_size, nb_mbuf_per_pool,
  					 socket_ids[i]);
  	} else {
  		if (socket_num == UMA_NO_CONFIG)
  			mbuf_pool_create(mbuf_data_size, nb_mbuf_per_pool, 0);
  		else
  			mbuf_pool_create(mbuf_data_size, nb_mbuf_per_pool,
  						 socket_num);
  	}
  
  	init_port_config();
  
  	gso_types = DEV_TX_OFFLOAD_TCP_TSO | DEV_TX_OFFLOAD_VXLAN_TNL_TSO |
  		DEV_TX_OFFLOAD_GRE_TNL_TSO;
  	/*
  	 * Records which Mbuf pool to use by each logical core, if needed.
  	 */
  	for (lc_id = 0; lc_id < nb_lcores; lc_id++) {
  		mbp = mbuf_pool_find(
  			rte_lcore_to_socket_id(fwd_lcores_cpuids[lc_id]));
  
  		if (mbp == NULL)
  			mbp = mbuf_pool_find(0);
  		fwd_lcores[lc_id]->mbp = mbp;
  		/* initialize GSO context */
  		fwd_lcores[lc_id]->gso_ctx.direct_pool = mbp;
  		fwd_lcores[lc_id]->gso_ctx.indirect_pool = mbp;
  		fwd_lcores[lc_id]->gso_ctx.gso_types = gso_types;
  		fwd_lcores[lc_id]->gso_ctx.gso_size = ETHER_MAX_LEN -
  			ETHER_CRC_LEN;
  		fwd_lcores[lc_id]->gso_ctx.flag = 0;
  	}
  
  	/* Configuration of packet forwarding streams. */
  	if (init_fwd_streams() < 0)
  		rte_exit(EXIT_FAILURE, "FAIL from init_fwd_streams()\n");
  
  	fwd_config_setup();
  
  	/* create a gro context for each lcore */
  	gro_param.gro_types = RTE_GRO_TCP_IPV4;
  	gro_param.max_flow_num = GRO_MAX_FLUSH_CYCLES;
  	gro_param.max_item_per_flow = MAX_PKT_BURST;
  	for (lc_id = 0; lc_id < nb_lcores; lc_id++) {
  		gro_param.socket_id = rte_lcore_to_socket_id(
  				fwd_lcores_cpuids[lc_id]);
  		fwd_lcores[lc_id]->gro_ctx = rte_gro_ctx_create(&gro_param);
  		if (fwd_lcores[lc_id]->gro_ctx == NULL) {
  			rte_exit(EXIT_FAILURE,
  					"rte_gro_ctx_create() failed\n");
  		}
  	}
  }
  
  
  void
  reconfig(portid_t new_port_id, unsigned socket_id)
  {
  	struct rte_port *port;
  
  	/* Reconfiguration of Ethernet ports. */
  	port = &ports[new_port_id];
  	rte_eth_dev_info_get(new_port_id, &port->dev_info);
  
  	/* set flag to initialize port/queue */
  	port->need_reconfig = 1;
  	port->need_reconfig_queues = 1;
  	port->socket_id = socket_id;
  
  	init_port_config();
  }
  
  
  int
  init_fwd_streams(void)
  {
  	portid_t pid;
  	struct rte_port *port;
  	streamid_t sm_id, nb_fwd_streams_new;
  	queueid_t q;
  
  	/* set socket id according to numa or not */
  	RTE_ETH_FOREACH_DEV(pid) {
  		port = &ports[pid];
  		if (nb_rxq > port->dev_info.max_rx_queues) {
  			printf("Fail: nb_rxq(%d) is greater than "
  				"max_rx_queues(%d)\n", nb_rxq,
  				port->dev_info.max_rx_queues);
  			return -1;
  		}
  		if (nb_txq > port->dev_info.max_tx_queues) {
  			printf("Fail: nb_txq(%d) is greater than "
  				"max_tx_queues(%d)\n", nb_txq,
  				port->dev_info.max_tx_queues);
  			return -1;
  		}
  		if (numa_support) {
  			if (port_numa[pid] != NUMA_NO_CONFIG)
  				port->socket_id = port_numa[pid];
  			else {
  				port->socket_id = rte_eth_dev_socket_id(pid);
  
  				/* if socket_id is invalid, set to 0 */
  				if (check_socket_id(port->socket_id) < 0)
  					port->socket_id = 0;
  			}
  		}
  		else {
  			if (socket_num == UMA_NO_CONFIG)
  				port->socket_id = 0;
  			else
  				port->socket_id = socket_num;
  		}
  	}
  
  	q = RTE_MAX(nb_rxq, nb_txq);
  	if (q == 0) {
  		printf("Fail: Cannot allocate fwd streams as number of queues is 0\n");
  		return -1;
  	}
  	nb_fwd_streams_new = (streamid_t)(nb_ports * q);
  	if (nb_fwd_streams_new == nb_fwd_streams)
  		return 0;
  	/* clear the old */
  	if (fwd_streams != NULL) {
  		for (sm_id = 0; sm_id < nb_fwd_streams; sm_id++) {
  			if (fwd_streams[sm_id] == NULL)
  				continue;
  			rte_free(fwd_streams[sm_id]);
  			fwd_streams[sm_id] = NULL;
  		}
  		rte_free(fwd_streams);
  		fwd_streams = NULL;
  	}
  
  	/* init new */
  	nb_fwd_streams = nb_fwd_streams_new;
  	if (nb_fwd_streams) {
  		fwd_streams = rte_zmalloc("testpmd: fwd_streams",
  			sizeof(struct fwd_stream *) * nb_fwd_streams,
  			RTE_CACHE_LINE_SIZE);
  		if (fwd_streams == NULL)
  			rte_exit(EXIT_FAILURE, "rte_zmalloc(%d"
  				 " (struct fwd_stream *)) failed\n",
  				 nb_fwd_streams);
  
  		for (sm_id = 0; sm_id < nb_fwd_streams; sm_id++) {
  			fwd_streams[sm_id] = rte_zmalloc("testpmd:"
  				" struct fwd_stream", sizeof(struct fwd_stream),
  				RTE_CACHE_LINE_SIZE);
  			if (fwd_streams[sm_id] == NULL)
  				rte_exit(EXIT_FAILURE, "rte_zmalloc"
  					 "(struct fwd_stream) failed\n");
  		}
  	}
  
  	return 0;
  }
  
  #ifdef RTE_TEST_PMD_RECORD_BURST_STATS
  static void
  pkt_burst_stats_display(const char *rx_tx, struct pkt_burst_stats *pbs)
  {
  	unsigned int total_burst;
  	unsigned int nb_burst;
  	unsigned int burst_stats[3];
  	uint16_t pktnb_stats[3];
  	uint16_t nb_pkt;
  	int burst_percent[3];
  
  	/*
  	 * First compute the total number of packet bursts and the
  	 * two highest numbers of bursts of the same number of packets.
  	 */
  	total_burst = 0;
  	burst_stats[0] = burst_stats[1] = burst_stats[2] = 0;
  	pktnb_stats[0] = pktnb_stats[1] = pktnb_stats[2] = 0;
  	for (nb_pkt = 0; nb_pkt < MAX_PKT_BURST; nb_pkt++) {
  		nb_burst = pbs->pkt_burst_spread[nb_pkt];
  		if (nb_burst == 0)
  			continue;
  		total_burst += nb_burst;
  		if (nb_burst > burst_stats[0]) {
  			burst_stats[1] = burst_stats[0];
  			pktnb_stats[1] = pktnb_stats[0];
  			burst_stats[0] = nb_burst;
  			pktnb_stats[0] = nb_pkt;
  		} else if (nb_burst > burst_stats[1]) {
  			burst_stats[1] = nb_burst;
  			pktnb_stats[1] = nb_pkt;
  		}
  	}
  	if (total_burst == 0)
  		return;
  	burst_percent[0] = (burst_stats[0] * 100) / total_burst;
  	printf("  %s-bursts : %u [%d%% of %d pkts", rx_tx, total_burst,
  	       burst_percent[0], (int) pktnb_stats[0]);
  	if (burst_stats[0] == total_burst) {
  		printf("]\n");
  		return;
  	}
  	if (burst_stats[0] + burst_stats[1] == total_burst) {
  		printf(" + %d%% of %d pkts]\n",
  		       100 - burst_percent[0], pktnb_stats[1]);
  		return;
  	}
  	burst_percent[1] = (burst_stats[1] * 100) / total_burst;
  	burst_percent[2] = 100 - (burst_percent[0] + burst_percent[1]);
  	if ((burst_percent[1] == 0) || (burst_percent[2] == 0)) {
  		printf(" + %d%% of others]\n", 100 - burst_percent[0]);
  		return;
  	}
  	printf(" + %d%% of %d pkts + %d%% of others]\n",
  	       burst_percent[1], (int) pktnb_stats[1], burst_percent[2]);
  }
  #endif /* RTE_TEST_PMD_RECORD_BURST_STATS */
  
  static void
  fwd_port_stats_display(portid_t port_id, struct rte_eth_stats *stats)
  {
  	struct rte_port *port;
  	uint8_t i;
  
  	static const char *fwd_stats_border = "----------------------";
  
  	port = &ports[port_id];
  	printf("\n  %s Forward statistics for port %-2d %s\n",
  	       fwd_stats_border, port_id, fwd_stats_border);
  
  	if ((!port->rx_queue_stats_mapping_enabled) && (!port->tx_queue_stats_mapping_enabled)) {
  		printf("  RX-packets: %-14"PRIu64" RX-dropped: %-14"PRIu64"RX-total: "
  		       "%-"PRIu64"\n",
  		       stats->ipackets, stats->imissed,
  		       (uint64_t) (stats->ipackets + stats->imissed));
  
  		if (cur_fwd_eng == &csum_fwd_engine)
  			printf("  Bad-ipcsum: %-14"PRIu64" Bad-l4csum: %-14"PRIu64" \n",
  			       port->rx_bad_ip_csum, port->rx_bad_l4_csum);
  		if ((stats->ierrors + stats->rx_nombuf) > 0) {
  			printf("  RX-error: %-"PRIu64"\n",  stats->ierrors);
  			printf("  RX-nombufs: %-14"PRIu64"\n", stats->rx_nombuf);
  		}
  
  		printf("  TX-packets: %-14"PRIu64" TX-dropped: %-14"PRIu64"TX-total: "
  		       "%-"PRIu64"\n",
  		       stats->opackets, port->tx_dropped,
  		       (uint64_t) (stats->opackets + port->tx_dropped));
  	}
  	else {
  		printf("  RX-packets:             %14"PRIu64"    RX-dropped:%14"PRIu64"    RX-total:"
  		       "%14"PRIu64"\n",
  		       stats->ipackets, stats->imissed,
  		       (uint64_t) (stats->ipackets + stats->imissed));
  
  		if (cur_fwd_eng == &csum_fwd_engine)
  			printf("  Bad-ipcsum:%14"PRIu64"    Bad-l4csum:%14"PRIu64"\n",
  			       port->rx_bad_ip_csum, port->rx_bad_l4_csum);
  		if ((stats->ierrors + stats->rx_nombuf) > 0) {
  			printf("  RX-error:%"PRIu64"\n", stats->ierrors);
  			printf("  RX-nombufs:             %14"PRIu64"\n",
  			       stats->rx_nombuf);
  		}
  
  		printf("  TX-packets:             %14"PRIu64"    TX-dropped:%14"PRIu64"    TX-total:"
  		       "%14"PRIu64"\n",
  		       stats->opackets, port->tx_dropped,
  		       (uint64_t) (stats->opackets + port->tx_dropped));
  	}
  
  #ifdef RTE_TEST_PMD_RECORD_BURST_STATS
  	if (port->rx_stream)
  		pkt_burst_stats_display("RX",
  			&port->rx_stream->rx_burst_stats);
  	if (port->tx_stream)
  		pkt_burst_stats_display("TX",
  			&port->tx_stream->tx_burst_stats);
  #endif
  
  	if (port->rx_queue_stats_mapping_enabled) {
  		printf("\n");
  		for (i = 0; i < RTE_ETHDEV_QUEUE_STAT_CNTRS; i++) {
  			printf("  Stats reg %2d RX-packets:%14"PRIu64
  			       "     RX-errors:%14"PRIu64
  			       "    RX-bytes:%14"PRIu64"\n",
  			       i, stats->q_ipackets[i], stats->q_errors[i], stats->q_ibytes[i]);
  		}
  		printf("\n");
  	}
  	if (port->tx_queue_stats_mapping_enabled) {
  		for (i = 0; i < RTE_ETHDEV_QUEUE_STAT_CNTRS; i++) {
  			printf("  Stats reg %2d TX-packets:%14"PRIu64
  			       "                                 TX-bytes:%14"PRIu64"\n",
  			       i, stats->q_opackets[i], stats->q_obytes[i]);
  		}
  	}
  
  	printf("  %s--------------------------------%s\n",
  	       fwd_stats_border, fwd_stats_border);
  }
  
  static void
  fwd_stream_stats_display(streamid_t stream_id)
  {
  	struct fwd_stream *fs;
  	static const char *fwd_top_stats_border = "-------";
  
  	fs = fwd_streams[stream_id];
  	if ((fs->rx_packets == 0) && (fs->tx_packets == 0) &&
  	    (fs->fwd_dropped == 0))
  		return;
  	printf("\n  %s Forward Stats for RX Port=%2d/Queue=%2d -> "
  	       "TX Port=%2d/Queue=%2d %s\n",
  	       fwd_top_stats_border, fs->rx_port, fs->rx_queue,
  	       fs->tx_port, fs->tx_queue, fwd_top_stats_border);
  	printf("  RX-packets: %-14u TX-packets: %-14u TX-dropped: %-14u",
  	       fs->rx_packets, fs->tx_packets, fs->fwd_dropped);
  
  	/* if checksum mode */
  	if (cur_fwd_eng == &csum_fwd_engine) {
  	       printf("  RX- bad IP checksum: %-14u  Rx- bad L4 checksum: "
  			"%-14u\n", fs->rx_bad_ip_csum, fs->rx_bad_l4_csum);
  	}
  
  #ifdef RTE_TEST_PMD_RECORD_BURST_STATS
  	pkt_burst_stats_display("RX", &fs->rx_burst_stats);
  	pkt_burst_stats_display("TX", &fs->tx_burst_stats);
  #endif
  }
  
  static void
  flush_fwd_rx_queues(void)
  {
  	struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
  	portid_t  rxp;
  	portid_t port_id;
  	queueid_t rxq;
  	uint16_t  nb_rx;
  	uint16_t  i;
  	uint8_t   j;
  	uint64_t prev_tsc = 0, diff_tsc, cur_tsc, timer_tsc = 0;
  	uint64_t timer_period;
  
  	/* convert to number of cycles */
  	timer_period = rte_get_timer_hz(); /* 1 second timeout */
  
  	for (j = 0; j < 2; j++) {
  		for (rxp = 0; rxp < cur_fwd_config.nb_fwd_ports; rxp++) {
  			for (rxq = 0; rxq < nb_rxq; rxq++) {
  				port_id = fwd_ports_ids[rxp];
  				/**
  				* testpmd can stuck in the below do while loop
  				* if rte_eth_rx_burst() always returns nonzero
  				* packets. So timer is added to exit this loop
  				* after 1sec timer expiry.
  				*/
  				prev_tsc = rte_rdtsc();
  				do {
  					nb_rx = rte_eth_rx_burst(port_id, rxq,
  						pkts_burst, MAX_PKT_BURST);
  					for (i = 0; i < nb_rx; i++)
  						rte_pktmbuf_free(pkts_burst[i]);
  
  					cur_tsc = rte_rdtsc();
  					diff_tsc = cur_tsc - prev_tsc;
  					timer_tsc += diff_tsc;
  				} while ((nb_rx > 0) &&
  					(timer_tsc < timer_period));
  				timer_tsc = 0;
  			}
  		}
  		rte_delay_ms(10); /* wait 10 milli-seconds before retrying */
  	}
  }
  
  static void
  run_pkt_fwd_on_lcore(struct fwd_lcore *fc, packet_fwd_t pkt_fwd)
  {
  	struct fwd_stream **fsm;
  	streamid_t nb_fs;
  	streamid_t sm_id;
  #ifdef RTE_LIBRTE_BITRATE
  	uint64_t tics_per_1sec;
  	uint64_t tics_datum;
  	uint64_t tics_current;
  	uint16_t idx_port;
  
  	tics_datum = rte_rdtsc();
  	tics_per_1sec = rte_get_timer_hz();
  #endif
  	fsm = &fwd_streams[fc->stream_idx];
  	nb_fs = fc->stream_nb;
  	do {
  		for (sm_id = 0; sm_id < nb_fs; sm_id++)
  			(*pkt_fwd)(fsm[sm_id]);
  #ifdef RTE_LIBRTE_BITRATE
  		if (bitrate_enabled != 0 &&
  				bitrate_lcore_id == rte_lcore_id()) {
  			tics_current = rte_rdtsc();
  			if (tics_current - tics_datum >= tics_per_1sec) {
  				/* Periodic bitrate calculation */
  				RTE_ETH_FOREACH_DEV(idx_port)
  					rte_stats_bitrate_calc(bitrate_data,
  						idx_port);
  				tics_datum = tics_current;
  			}
  		}
  #endif
  #ifdef RTE_LIBRTE_LATENCY_STATS
  		if (latencystats_enabled != 0 &&
  				latencystats_lcore_id == rte_lcore_id())
  			rte_latencystats_update();
  #endif
  
  	} while (! fc->stopped);
  }
  
  static int
  start_pkt_forward_on_core(void *fwd_arg)
  {
  	run_pkt_fwd_on_lcore((struct fwd_lcore *) fwd_arg,
  			     cur_fwd_config.fwd_eng->packet_fwd);
  	return 0;
  }
  
  /*
   * Run the TXONLY packet forwarding engine to send a single burst of packets.
   * Used to start communication flows in network loopback test configurations.
   */
  static int
  run_one_txonly_burst_on_core(void *fwd_arg)
  {
  	struct fwd_lcore *fwd_lc;
  	struct fwd_lcore tmp_lcore;
  
  	fwd_lc = (struct fwd_lcore *) fwd_arg;
  	tmp_lcore = *fwd_lc;
  	tmp_lcore.stopped = 1;
  	run_pkt_fwd_on_lcore(&tmp_lcore, tx_only_engine.packet_fwd);
  	return 0;
  }
  
  /*
   * Launch packet forwarding:
   *     - Setup per-port forwarding context.
   *     - launch logical cores with their forwarding configuration.
   */
  static void
  launch_packet_forwarding(lcore_function_t *pkt_fwd_on_lcore)
  {
  	port_fwd_begin_t port_fwd_begin;
  	unsigned int i;
  	unsigned int lc_id;
  	int diag;
  
  	port_fwd_begin = cur_fwd_config.fwd_eng->port_fwd_begin;
  	if (port_fwd_begin != NULL) {
  		for (i = 0; i < cur_fwd_config.nb_fwd_ports; i++)
  			(*port_fwd_begin)(fwd_ports_ids[i]);
  	}
  	for (i = 0; i < cur_fwd_config.nb_fwd_lcores; i++) {
  		lc_id = fwd_lcores_cpuids[i];
  		if ((interactive == 0) || (lc_id != rte_lcore_id())) {
  			fwd_lcores[i]->stopped = 0;
  			diag = rte_eal_remote_launch(pkt_fwd_on_lcore,
  						     fwd_lcores[i], lc_id);
  			if (diag != 0)
  				printf("launch lcore %u failed - diag=%d\n",
  				       lc_id, diag);
  		}
  	}
  }
  
  /*
   * Update the forward ports list.
   */
  void
  update_fwd_ports(portid_t new_pid)
  {
  	unsigned int i;
  	unsigned int new_nb_fwd_ports = 0;
  	int move = 0;
  
  	for (i = 0; i < nb_fwd_ports; ++i) {
  		if (port_id_is_invalid(fwd_ports_ids[i], DISABLED_WARN))
  			move = 1;
  		else if (move)
  			fwd_ports_ids[new_nb_fwd_ports++] = fwd_ports_ids[i];
  		else
  			new_nb_fwd_ports++;
  	}
  	if (new_pid < RTE_MAX_ETHPORTS)
  		fwd_ports_ids[new_nb_fwd_ports++] = new_pid;
  
  	nb_fwd_ports = new_nb_fwd_ports;
  	nb_cfg_ports = new_nb_fwd_ports;
  }
  
  /*
   * Launch packet forwarding configuration.
   */
  void
  start_packet_forwarding(int with_tx_first)
  {
  	port_fwd_begin_t port_fwd_begin;
  	port_fwd_end_t  port_fwd_end;
  	struct rte_port *port;
  	unsigned int i;
  	portid_t   pt_id;
  	streamid_t sm_id;
  
  	if (strcmp(cur_fwd_eng->fwd_mode_name, "rxonly") == 0 && !nb_rxq)
  		rte_exit(EXIT_FAILURE, "rxq are 0, cannot use rxonly fwd mode\n");
  
  	if (strcmp(cur_fwd_eng->fwd_mode_name, "txonly") == 0 && !nb_txq)
  		rte_exit(EXIT_FAILURE, "txq are 0, cannot use txonly fwd mode\n");
  
  	if ((strcmp(cur_fwd_eng->fwd_mode_name, "rxonly") != 0 &&
  		strcmp(cur_fwd_eng->fwd_mode_name, "txonly") != 0) &&
  		(!nb_rxq || !nb_txq))
  		rte_exit(EXIT_FAILURE,
  			"Either rxq or txq are 0, cannot use %s fwd mode\n",
  			cur_fwd_eng->fwd_mode_name);
  
  	if (all_ports_started() == 0) {
  		printf("Not all ports were started\n");
  		return;
  	}
  	if (test_done == 0) {
  		printf("Packet forwarding already started\n");
  		return;
  	}
  
  
  	if(dcb_test) {
  		for (i = 0; i < nb_fwd_ports; i++) {
  			pt_id = fwd_ports_ids[i];
  			port = &ports[pt_id];
  			if (!port->dcb_flag) {
  				printf("In DCB mode, all forwarding ports must "
                                         "be configured in this mode.\n");
  				return;
  			}
  		}
  		if (nb_fwd_lcores == 1) {
  			printf("In DCB mode,the nb forwarding cores "
                                 "should be larger than 1.\n");
  			return;
  		}
  	}
  	test_done = 0;
  
  	fwd_config_setup();
  
  	if(!no_flush_rx)
  		flush_fwd_rx_queues();
  
  	pkt_fwd_config_display(&cur_fwd_config);
  	rxtx_config_display();
  
  	for (i = 0; i < cur_fwd_config.nb_fwd_ports; i++) {
  		pt_id = fwd_ports_ids[i];
  		port = &ports[pt_id];
  		rte_eth_stats_get(pt_id, &port->stats);
  		port->tx_dropped = 0;
  
  		map_port_queue_stats_mapping_registers(pt_id, port);
  	}
  	for (sm_id = 0; sm_id < cur_fwd_config.nb_fwd_streams; sm_id++) {
  		fwd_streams[sm_id]->rx_packets = 0;
  		fwd_streams[sm_id]->tx_packets = 0;
  		fwd_streams[sm_id]->fwd_dropped = 0;
  		fwd_streams[sm_id]->rx_bad_ip_csum = 0;
  		fwd_streams[sm_id]->rx_bad_l4_csum = 0;
  
  #ifdef RTE_TEST_PMD_RECORD_BURST_STATS
  		memset(&fwd_streams[sm_id]->rx_burst_stats, 0,
  		       sizeof(fwd_streams[sm_id]->rx_burst_stats));
  		memset(&fwd_streams[sm_id]->tx_burst_stats, 0,
  		       sizeof(fwd_streams[sm_id]->tx_burst_stats));
  #endif
  #ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
  		fwd_streams[sm_id]->core_cycles = 0;
  #endif
  	}
  	if (with_tx_first) {
  		port_fwd_begin = tx_only_engine.port_fwd_begin;
  		if (port_fwd_begin != NULL) {
  			for (i = 0; i < cur_fwd_config.nb_fwd_ports; i++)
  				(*port_fwd_begin)(fwd_ports_ids[i]);
  		}
  		while (with_tx_first--) {
  			launch_packet_forwarding(
  					run_one_txonly_burst_on_core);
  			rte_eal_mp_wait_lcore();
  		}
  		port_fwd_end = tx_only_engine.port_fwd_end;
  		if (port_fwd_end != NULL) {
  			for (i = 0; i < cur_fwd_config.nb_fwd_ports; i++)
  				(*port_fwd_end)(fwd_ports_ids[i]);
  		}
  	}
  	launch_packet_forwarding(start_pkt_forward_on_core);
  }
  
  void
  stop_packet_forwarding(void)
  {
  	struct rte_eth_stats stats;
  	struct rte_port *port;
  	port_fwd_end_t  port_fwd_end;
  	int i;
  	portid_t   pt_id;
  	streamid_t sm_id;
  	lcoreid_t  lc_id;
  	uint64_t total_recv;
  	uint64_t total_xmit;
  	uint64_t total_rx_dropped;
  	uint64_t total_tx_dropped;
  	uint64_t total_rx_nombuf;
  	uint64_t tx_dropped;
  	uint64_t rx_bad_ip_csum;
  	uint64_t rx_bad_l4_csum;
  #ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
  	uint64_t fwd_cycles;
  #endif
  
  	static const char *acc_stats_border = "+++++++++++++++";
  
  	if (test_done) {
  		printf("Packet forwarding not started\n");
  		return;
  	}
  	printf("Telling cores to stop...");
  	for (lc_id = 0; lc_id < cur_fwd_config.nb_fwd_lcores; lc_id++)
  		fwd_lcores[lc_id]->stopped = 1;
  	printf("\nWaiting for lcores to finish...\n");
  	rte_eal_mp_wait_lcore();
  	port_fwd_end = cur_fwd_config.fwd_eng->port_fwd_end;
  	if (port_fwd_end != NULL) {
  		for (i = 0; i < cur_fwd_config.nb_fwd_ports; i++) {
  			pt_id = fwd_ports_ids[i];
  			(*port_fwd_end)(pt_id);
  		}
  	}
  #ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
  	fwd_cycles = 0;
  #endif
  	for (sm_id = 0; sm_id < cur_fwd_config.nb_fwd_streams; sm_id++) {
  		if (cur_fwd_config.nb_fwd_streams >
  		    cur_fwd_config.nb_fwd_ports) {
  			fwd_stream_stats_display(sm_id);
  			ports[fwd_streams[sm_id]->tx_port].tx_stream = NULL;
  			ports[fwd_streams[sm_id]->rx_port].rx_stream = NULL;
  		} else {
  			ports[fwd_streams[sm_id]->tx_port].tx_stream =
  				fwd_streams[sm_id];
  			ports[fwd_streams[sm_id]->rx_port].rx_stream =
  				fwd_streams[sm_id];
  		}
  		tx_dropped = ports[fwd_streams[sm_id]->tx_port].tx_dropped;
  		tx_dropped = (uint64_t) (tx_dropped +
  					 fwd_streams[sm_id]->fwd_dropped);
  		ports[fwd_streams[sm_id]->tx_port].tx_dropped = tx_dropped;
  
  		rx_bad_ip_csum =
  			ports[fwd_streams[sm_id]->rx_port].rx_bad_ip_csum;
  		rx_bad_ip_csum = (uint64_t) (rx_bad_ip_csum +
  					 fwd_streams[sm_id]->rx_bad_ip_csum);
  		ports[fwd_streams[sm_id]->rx_port].rx_bad_ip_csum =
  							rx_bad_ip_csum;
  
  		rx_bad_l4_csum =
  			ports[fwd_streams[sm_id]->rx_port].rx_bad_l4_csum;
  		rx_bad_l4_csum = (uint64_t) (rx_bad_l4_csum +
  					 fwd_streams[sm_id]->rx_bad_l4_csum);
  		ports[fwd_streams[sm_id]->rx_port].rx_bad_l4_csum =
  							rx_bad_l4_csum;
  
  #ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
  		fwd_cycles = (uint64_t) (fwd_cycles +
  					 fwd_streams[sm_id]->core_cycles);
  #endif
  	}
  	total_recv = 0;
  	total_xmit = 0;
  	total_rx_dropped = 0;
  	total_tx_dropped = 0;
  	total_rx_nombuf  = 0;
  	for (i = 0; i < cur_fwd_config.nb_fwd_ports; i++) {
  		pt_id = fwd_ports_ids[i];
  
  		port = &ports[pt_id];
  		rte_eth_stats_get(pt_id, &stats);
  		stats.ipackets -= port->stats.ipackets;
  		port->stats.ipackets = 0;
  		stats.opackets -= port->stats.opackets;
  		port->stats.opackets = 0;
  		stats.ibytes   -= port->stats.ibytes;
  		port->stats.ibytes = 0;
  		stats.obytes   -= port->stats.obytes;
  		port->stats.obytes = 0;
  		stats.imissed  -= port->stats.imissed;
  		port->stats.imissed = 0;
  		stats.oerrors  -= port->stats.oerrors;
  		port->stats.oerrors = 0;
  		stats.rx_nombuf -= port->stats.rx_nombuf;
  		port->stats.rx_nombuf = 0;
  
  		total_recv += stats.ipackets;
  		total_xmit += stats.opackets;
  		total_rx_dropped += stats.imissed;
  		total_tx_dropped += port->tx_dropped;
  		total_rx_nombuf  += stats.rx_nombuf;
  
  		fwd_port_stats_display(pt_id, &stats);
  	}
  
  	printf("\n  %s Accumulated forward statistics for all ports"
  	       "%s\n",
  	       acc_stats_border, acc_stats_border);
  	printf("  RX-packets: %-14"PRIu64" RX-dropped: %-14"PRIu64"RX-total: "
  	       "%-"PRIu64"\n"
  	       "  TX-packets: %-14"PRIu64" TX-dropped: %-14"PRIu64"TX-total: "
  	       "%-"PRIu64"\n",
  	       total_recv, total_rx_dropped, total_recv + total_rx_dropped,
  	       total_xmit, total_tx_dropped, total_xmit + total_tx_dropped);
  	if (total_rx_nombuf > 0)
  		printf("  RX-nombufs: %-14"PRIu64"\n", total_rx_nombuf);
  	printf("  %s++++++++++++++++++++++++++++++++++++++++++++++"
  	       "%s\n",
  	       acc_stats_border, acc_stats_border);
  #ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
  	if (total_recv > 0)
  		printf("\n  CPU cycles/packet=%u (total cycles="
  		       "%"PRIu64" / total RX packets=%"PRIu64")\n",
  		       (unsigned int)(fwd_cycles / total_recv),
  		       fwd_cycles, total_recv);
  #endif
  	printf("\nDone.\n");
  	test_done = 1;
  }
  
  void
  dev_set_link_up(portid_t pid)
  {
  	if (rte_eth_dev_set_link_up(pid) < 0)
  		printf("\nSet link up fail.\n");
  }
  
  void
  dev_set_link_down(portid_t pid)
  {
  	if (rte_eth_dev_set_link_down(pid) < 0)
  		printf("\nSet link down fail.\n");
  }
  
  static int
  all_ports_started(void)
  {
  	portid_t pi;
  	struct rte_port *port;
  
  	RTE_ETH_FOREACH_DEV(pi) {
  		port = &ports[pi];
  		/* Check if there is a port which is not started */
  		if ((port->port_status != RTE_PORT_STARTED) &&
  			(port->slave_flag == 0))
  			return 0;
  	}
  
  	/* No port is not started */
  	return 1;
  }
  
  int
  port_is_stopped(portid_t port_id)
  {
  	struct rte_port *port = &ports[port_id];
  
  	if ((port->port_status != RTE_PORT_STOPPED) &&
  	    (port->slave_flag == 0))
  		return 0;
  	return 1;
  }
  
  int
  all_ports_stopped(void)
  {
  	portid_t pi;
  
  	RTE_ETH_FOREACH_DEV(pi) {
  		if (!port_is_stopped(pi))
  			return 0;
  	}
  
  	return 1;
  }
  
  int
  port_is_started(portid_t port_id)
  {
  	if (port_id_is_invalid(port_id, ENABLED_WARN))
  		return 0;
  
  	if (ports[port_id].port_status != RTE_PORT_STARTED)
  		return 0;
  
  	return 1;
  }
  
  static int
  port_is_closed(portid_t port_id)
  {
  	if (port_id_is_invalid(port_id, ENABLED_WARN))
  		return 0;
  
  	if (ports[port_id].port_status != RTE_PORT_CLOSED)
  		return 0;
  
  	return 1;
  }
  
  int
  start_port(portid_t pid)
  {
  	int diag, need_check_link_status = -1;
  	portid_t pi;
  	queueid_t qi;
  	struct rte_port *port;
  	struct ether_addr mac_addr;
  	enum rte_eth_event_type event_type;
  
  	if (port_id_is_invalid(pid, ENABLED_WARN))
  		return 0;
  
  	if(dcb_config)
  		dcb_test = 1;
  	RTE_ETH_FOREACH_DEV(pi) {
  		if (pid != pi && pid != (portid_t)RTE_PORT_ALL)
  			continue;
  
  		need_check_link_status = 0;
  		port = &ports[pi];
  		if (rte_atomic16_cmpset(&(port->port_status), RTE_PORT_STOPPED,
  						 RTE_PORT_HANDLING) == 0) {
  			printf("Port %d is now not stopped\n", pi);
  			continue;
  		}
  
  		if (port->need_reconfig > 0) {
  			port->need_reconfig = 0;
  
  			if (flow_isolate_all) {
  				int ret = port_flow_isolate(pi, 1);
  				if (ret) {
  					printf("Failed to apply isolated"
  					       " mode on port %d\n", pi);
  					return -1;
  				}
  			}
  
  			printf("Configuring Port %d (socket %u)\n", pi,
  					port->socket_id);
  			/* configure port */
  			diag = rte_eth_dev_configure(pi, nb_rxq, nb_txq,
  						&(port->dev_conf));
  			if (diag != 0) {
  				if (rte_atomic16_cmpset(&(port->port_status),
  				RTE_PORT_HANDLING, RTE_PORT_STOPPED) == 0)
  					printf("Port %d can not be set back "
  							"to stopped\n", pi);
  				printf("Fail to configure port %d\n", pi);
  				/* try to reconfigure port next time */
  				port->need_reconfig = 1;
  				return -1;
  			}
  		}
  		if (port->need_reconfig_queues > 0) {
  			port->need_reconfig_queues = 0;
  			/* setup tx queues */
  			for (qi = 0; qi < nb_txq; qi++) {
  				port->tx_conf[qi].txq_flags =
  					ETH_TXQ_FLAGS_IGNORE;
  				if ((numa_support) &&
  					(txring_numa[pi] != NUMA_NO_CONFIG))
  					diag = rte_eth_tx_queue_setup(pi, qi,
  						port->nb_tx_desc[qi],
  						txring_numa[pi],
  						&(port->tx_conf[qi]));
  				else
  					diag = rte_eth_tx_queue_setup(pi, qi,
  						port->nb_tx_desc[qi],
  						port->socket_id,
  						&(port->tx_conf[qi]));
  
  				if (diag == 0)
  					continue;
  
  				/* Fail to setup tx queue, return */
  				if (rte_atomic16_cmpset(&(port->port_status),
  							RTE_PORT_HANDLING,
  							RTE_PORT_STOPPED) == 0)
  					printf("Port %d can not be set back "
  							"to stopped\n", pi);
  				printf("Fail to configure port %d tx queues\n",
  				       pi);
  				/* try to reconfigure queues next time */
  				port->need_reconfig_queues = 1;
  				return -1;
  			}
  			for (qi = 0; qi < nb_rxq; qi++) {
  				/* setup rx queues */
  				if ((numa_support) &&
  					(rxring_numa[pi] != NUMA_NO_CONFIG)) {
  					struct rte_mempool * mp =
  						mbuf_pool_find(rxring_numa[pi]);
  					if (mp == NULL) {
  						printf("Failed to setup RX queue:"
  							"No mempool allocation"
  							" on the socket %d\n",
  							rxring_numa[pi]);
  						return -1;
  					}
  
  					diag = rte_eth_rx_queue_setup(pi, qi,
  					     port->nb_rx_desc[qi],
  					     rxring_numa[pi],
  					     &(port->rx_conf[qi]),
  					     mp);
  				} else {
  					struct rte_mempool *mp =
  						mbuf_pool_find(port->socket_id);
  					if (mp == NULL) {
  						printf("Failed to setup RX queue:"
  							"No mempool allocation"
  							" on the socket %d\n",
  							port->socket_id);
  						return -1;
  					}
  					diag = rte_eth_rx_queue_setup(pi, qi,
  					     port->nb_rx_desc[qi],
  					     port->socket_id,
  					     &(port->rx_conf[qi]),
  					     mp);
  				}
  				if (diag == 0)
  					continue;
  
  				/* Fail to setup rx queue, return */
  				if (rte_atomic16_cmpset(&(port->port_status),
  							RTE_PORT_HANDLING,
  							RTE_PORT_STOPPED) == 0)
  					printf("Port %d can not be set back "
  							"to stopped\n", pi);
  				printf("Fail to configure port %d rx queues\n",
  				       pi);
  				/* try to reconfigure queues next time */
  				port->need_reconfig_queues = 1;
  				return -1;
  			}
  		}
  
  		/* start port */
  		if (rte_eth_dev_start(pi) < 0) {
  			printf("Fail to start port %d\n", pi);
  
  			/* Fail to setup rx queue, return */
  			if (rte_atomic16_cmpset(&(port->port_status),
  				RTE_PORT_HANDLING, RTE_PORT_STOPPED) == 0)
  				printf("Port %d can not be set back to "
  							"stopped\n", pi);
  			continue;
  		}
  
  		if (rte_atomic16_cmpset(&(port->port_status),
  			RTE_PORT_HANDLING, RTE_PORT_STARTED) == 0)
  			printf("Port %d can not be set into started\n", pi);
  
  		rte_eth_macaddr_get(pi, &mac_addr);
  		printf("Port %d: %02X:%02X:%02X:%02X:%02X:%02X\n", pi,
  				mac_addr.addr_bytes[0], mac_addr.addr_bytes[1],
  				mac_addr.addr_bytes[2], mac_addr.addr_bytes[3],
  				mac_addr.addr_bytes[4], mac_addr.addr_bytes[5]);
  
  		/* at least one port started, need checking link status */
  		need_check_link_status = 1;
  	}
  
  	for (event_type = RTE_ETH_EVENT_UNKNOWN;
  	     event_type < RTE_ETH_EVENT_MAX;
  	     event_type++) {
  		diag = rte_eth_dev_callback_register(RTE_ETH_ALL,
  						event_type,
  						eth_event_callback,
  						NULL);
  		if (diag) {
  			printf("Failed to setup even callback for event %d\n",
  				event_type);
  			return -1;
  		}
  	}
  
  	if (need_check_link_status == 1 && !no_link_check)
  		check_all_ports_link_status(RTE_PORT_ALL);
  	else if (need_check_link_status == 0)
  		printf("Please stop the ports first\n");
  
  	printf("Done\n");
  	return 0;
  }
  
  void
  stop_port(portid_t pid)
  {
  	portid_t pi;
  	struct rte_port *port;
  	int need_check_link_status = 0;
  
  	if (dcb_test) {
  		dcb_test = 0;
  		dcb_config = 0;
  	}
  
  	if (port_id_is_invalid(pid, ENABLED_WARN))
  		return;
  
  	printf("Stopping ports...\n");
  
  	RTE_ETH_FOREACH_DEV(pi) {
  		if (pid != pi && pid != (portid_t)RTE_PORT_ALL)
  			continue;
  
  		if (port_is_forwarding(pi) != 0 && test_done == 0) {
  			printf("Please remove port %d from forwarding configuration.\n", pi);
  			continue;
  		}
  
  		if (port_is_bonding_slave(pi)) {
  			printf("Please remove port %d from bonded device.\n", pi);
  			continue;
  		}
  
  		port = &ports[pi];
  		if (rte_atomic16_cmpset(&(port->port_status), RTE_PORT_STARTED,
  						RTE_PORT_HANDLING) == 0)
  			continue;
  
  		rte_eth_dev_stop(pi);
  
  		if (rte_atomic16_cmpset(&(port->port_status),
  			RTE_PORT_HANDLING, RTE_PORT_STOPPED) == 0)
  			printf("Port %d can not be set into stopped\n", pi);
  		need_check_link_status = 1;
  	}
  	if (need_check_link_status && !no_link_check)
  		check_all_ports_link_status(RTE_PORT_ALL);
  
  	printf("Done\n");
  }
  
  void
  close_port(portid_t pid)
  {
  	portid_t pi;
  	struct rte_port *port;
  
  	if (port_id_is_invalid(pid, ENABLED_WARN))
  		return;
  
  	printf("Closing ports...\n");
  
  	RTE_ETH_FOREACH_DEV(pi) {
  		if (pid != pi && pid != (portid_t)RTE_PORT_ALL)
  			continue;
  
  		if (port_is_forwarding(pi) != 0 && test_done == 0) {
  			printf("Please remove port %d from forwarding configuration.\n", pi);
  			continue;
  		}
  
  		if (port_is_bonding_slave(pi)) {
  			printf("Please remove port %d from bonded device.\n", pi);
  			continue;
  		}
  
  		port = &ports[pi];
  		if (rte_atomic16_cmpset(&(port->port_status),
  			RTE_PORT_CLOSED, RTE_PORT_CLOSED) == 1) {
  			printf("Port %d is already closed\n", pi);
  			continue;
  		}
  
  		if (rte_atomic16_cmpset(&(port->port_status),
  			RTE_PORT_STOPPED, RTE_PORT_HANDLING) == 0) {
  			printf("Port %d is now not stopped\n", pi);
  			continue;
  		}
  
  		if (port->flow_list)
  			port_flow_flush(pi);
  		rte_eth_dev_close(pi);
  
  		if (rte_atomic16_cmpset(&(port->port_status),
  			RTE_PORT_HANDLING, RTE_PORT_CLOSED) == 0)
  			printf("Port %d cannot be set to closed\n", pi);
  	}
  
  	printf("Done\n");
  }
  
  void
  reset_port(portid_t pid)
  {
  	int diag;
  	portid_t pi;
  	struct rte_port *port;
  
  	if (port_id_is_invalid(pid, ENABLED_WARN))
  		return;
  
  	printf("Resetting ports...\n");
  
  	RTE_ETH_FOREACH_DEV(pi) {
  		if (pid != pi && pid != (portid_t)RTE_PORT_ALL)
  			continue;
  
  		if (port_is_forwarding(pi) != 0 && test_done == 0) {
  			printf("Please remove port %d from forwarding "
  			       "configuration.\n", pi);
  			continue;
  		}
  
  		if (port_is_bonding_slave(pi)) {
  			printf("Please remove port %d from bonded device.\n",
  			       pi);
  			continue;
  		}
  
  		diag = rte_eth_dev_reset(pi);
  		if (diag == 0) {
  			port = &ports[pi];
  			port->need_reconfig = 1;
  			port->need_reconfig_queues = 1;
  		} else {
  			printf("Failed to reset port %d. diag=%d\n", pi, diag);
  		}
  	}
  
  	printf("Done\n");
  }
  
  static int
  eth_dev_event_callback_register(void)
  {
  	int ret;
  
  	/* register the device event callback */
  	ret = rte_dev_event_callback_register(NULL,
  		eth_dev_event_callback, NULL);
  	if (ret) {
  		printf("Failed to register device event callback\n");
  		return -1;
  	}
  
  	return 0;
  }
  
  
  static int
  eth_dev_event_callback_unregister(void)
  {
  	int ret;
  
  	/* unregister the device event callback */
  	ret = rte_dev_event_callback_unregister(NULL,
  		eth_dev_event_callback, NULL);
  	if (ret < 0) {
  		printf("Failed to unregister device event callback\n");
  		return -1;
  	}
  
  	return 0;
  }
  
  void
  attach_port(char *identifier)
  {
  	portid_t pi = 0;
  	unsigned int socket_id;
  
  	printf("Attaching a new port...\n");
  
  	if (identifier == NULL) {
  		printf("Invalid parameters are specified\n");
  		return;
  	}
  
  	if (rte_eth_dev_attach(identifier, &pi))
  		return;
  
  	socket_id = (unsigned)rte_eth_dev_socket_id(pi);
  	/* if socket_id is invalid, set to 0 */
  	if (check_socket_id(socket_id) < 0)
  		socket_id = 0;
  	reconfig(pi, socket_id);
  	rte_eth_promiscuous_enable(pi);
  
  	nb_ports = rte_eth_dev_count_avail();
  
  	ports[pi].port_status = RTE_PORT_STOPPED;
  
  	update_fwd_ports(pi);
  
  	printf("Port %d is attached. Now total ports is %d\n", pi, nb_ports);
  	printf("Done\n");
  }
  
  void
  detach_port(portid_t port_id)
  {
  	char name[RTE_ETH_NAME_MAX_LEN];
  
  	printf("Detaching a port...\n");
  
  	if (!port_is_closed(port_id)) {
  		printf("Please close port first\n");
  		return;
  	}
  
  	if (ports[port_id].flow_list)
  		port_flow_flush(port_id);
  
  	if (rte_eth_dev_detach(port_id, name)) {
  		TESTPMD_LOG(ERR, "Failed to detach port %u\n", port_id);
  		return;
  	}
  
  	nb_ports = rte_eth_dev_count_avail();
  
  	update_fwd_ports(RTE_MAX_ETHPORTS);
  
  	printf("Port %u is detached. Now total ports is %d\n",
  			port_id, nb_ports);
  	printf("Done\n");
  	return;
  }
  
  void
  pmd_test_exit(void)
  {
  	struct rte_device *device;
  	portid_t pt_id;
  	int ret;
  
  	if (test_done == 0)
  		stop_packet_forwarding();
  
  	if (ports != NULL) {
  		no_link_check = 1;
  		RTE_ETH_FOREACH_DEV(pt_id) {
  			printf("\nShutting down port %d...\n", pt_id);
  			fflush(stdout);
  			stop_port(pt_id);
  			close_port(pt_id);
  
  			/*
  			 * This is a workaround to fix a virtio-user issue that
  			 * requires to call clean-up routine to remove existing
  			 * socket.
  			 * This workaround valid only for testpmd, needs a fix
  			 * valid for all applications.
  			 * TODO: Implement proper resource cleanup
  			 */
  			device = rte_eth_devices[pt_id].device;
  			if (device && !strcmp(device->driver->name, "net_virtio_user"))
  				detach_port(pt_id);
  		}
  	}
  
  	if (hot_plug) {
  		ret = rte_dev_event_monitor_stop();
  		if (ret)
  			RTE_LOG(ERR, EAL,
  				"fail to stop device event monitor.");
  
  		ret = eth_dev_event_callback_unregister();
  		if (ret)
  			RTE_LOG(ERR, EAL,
  				"fail to unregister all event callbacks.");
  	}
  
  	printf("\nBye...\n");
  }
  
  typedef void (*cmd_func_t)(void);
  struct pmd_test_command {
  	const char *cmd_name;
  	cmd_func_t cmd_func;
  };
  
  #define PMD_TEST_CMD_NB (sizeof(pmd_test_menu) / sizeof(pmd_test_menu[0]))
  
  /* Check the link status of all ports in up to 9s, and print them finally */
  static void
  check_all_ports_link_status(uint32_t port_mask)
  {
  #define CHECK_INTERVAL 100 /* 100ms */
  #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
  	portid_t portid;
  	uint8_t count, all_ports_up, print_flag = 0;
  	struct rte_eth_link link;
  
  	printf("Checking link statuses...\n");
  	fflush(stdout);
  	for (count = 0; count <= MAX_CHECK_TIME; count++) {
  		all_ports_up = 1;
  		RTE_ETH_FOREACH_DEV(portid) {
  			if ((port_mask & (1 << portid)) == 0)
  				continue;
  			memset(&link, 0, sizeof(link));
  			rte_eth_link_get_nowait(portid, &link);
  			/* print link status if flag set */
  			if (print_flag == 1) {
  				if (link.link_status)
  					printf(
  					"Port%d Link Up. speed %u Mbps- %s\n",
  					portid, link.link_speed,
  				(link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
  					("full-duplex") : ("half-duplex\n"));
  				else
  					printf("Port %d Link Down\n", portid);
  				continue;
  			}
  			/* clear all_ports_up flag if any link down */
  			if (link.link_status == ETH_LINK_DOWN) {
  				all_ports_up = 0;
  				break;
  			}
  		}
  		/* after finally printing all link status, get out */
  		if (print_flag == 1)
  			break;
  
  		if (all_ports_up == 0) {
  			fflush(stdout);
  			rte_delay_ms(CHECK_INTERVAL);
  		}
  
  		/* set the print_flag if all ports up or timeout */
  		if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
  			print_flag = 1;
  		}
  
  		if (lsc_interrupt)
  			break;
  	}
  }
  
  static void
  rmv_event_callback(void *arg)
  {
  	int need_to_start = 0;
  	int org_no_link_check = no_link_check;
  	portid_t port_id = (intptr_t)arg;
  
  	RTE_ETH_VALID_PORTID_OR_RET(port_id);
  
  	if (!test_done && port_is_forwarding(port_id)) {
  		need_to_start = 1;
  		stop_packet_forwarding();
  	}
  	no_link_check = 1;
  	stop_port(port_id);
  	no_link_check = org_no_link_check;
  	close_port(port_id);
  	detach_port(port_id);
  	if (need_to_start)
  		start_packet_forwarding(0);
  }
  
  /* This function is used by the interrupt thread */
  static int
  eth_event_callback(portid_t port_id, enum rte_eth_event_type type, void *param,
  		  void *ret_param)
  {
  	static const char * const event_desc[] = {
  		[RTE_ETH_EVENT_UNKNOWN] = "Unknown",
  		[RTE_ETH_EVENT_INTR_LSC] = "LSC",
  		[RTE_ETH_EVENT_QUEUE_STATE] = "Queue state",
  		[RTE_ETH_EVENT_INTR_RESET] = "Interrupt reset",
  		[RTE_ETH_EVENT_VF_MBOX] = "VF Mbox",
  		[RTE_ETH_EVENT_IPSEC] = "IPsec",
  		[RTE_ETH_EVENT_MACSEC] = "MACsec",
  		[RTE_ETH_EVENT_INTR_RMV] = "device removal",
  		[RTE_ETH_EVENT_NEW] = "device probed",
  		[RTE_ETH_EVENT_DESTROY] = "device released",
  		[RTE_ETH_EVENT_MAX] = NULL,
  	};
  
  	RTE_SET_USED(param);
  	RTE_SET_USED(ret_param);
  
  	if (type >= RTE_ETH_EVENT_MAX) {
  		fprintf(stderr, "\nPort %" PRIu8 ": %s called upon invalid event %d\n",
  			port_id, __func__, type);
  		fflush(stderr);
  	} else if (event_print_mask & (UINT32_C(1) << type)) {
  		printf("\nPort %" PRIu8 ": %s event\n", port_id,
  			event_desc[type]);
  		fflush(stdout);
  	}
  
  	if (port_id_is_invalid(port_id, DISABLED_WARN))
  		return 0;
  
  	switch (type) {
  	case RTE_ETH_EVENT_INTR_RMV:
  		if (rte_eal_alarm_set(100000,
  				rmv_event_callback, (void *)(intptr_t)port_id))
  			fprintf(stderr, "Could not set up deferred device removal\n");
  		break;
  	default:
  		break;
  	}
  	return 0;
  }
  
  /* This function is used by the interrupt thread */
  static void
  eth_dev_event_callback(char *device_name, enum rte_dev_event_type type,
  			     __rte_unused void *arg)
  {
  	if (type >= RTE_DEV_EVENT_MAX) {
  		fprintf(stderr, "%s called upon invalid event %d\n",
  			__func__, type);
  		fflush(stderr);
  	}
  
  	switch (type) {
  	case RTE_DEV_EVENT_REMOVE:
  		RTE_LOG(ERR, EAL, "The device: %s has been removed!\n",
  			device_name);
  		/* TODO: After finish failure handle, begin to stop
  		 * packet forward, stop port, close port, detach port.
  		 */
  		break;
  	case RTE_DEV_EVENT_ADD:
  		RTE_LOG(ERR, EAL, "The device: %s has been added!\n",
  			device_name);
  		/* TODO: After finish kernel driver binding,
  		 * begin to attach port.
  		 */
  		break;
  	default:
  		break;
  	}
  }
  
  static int
  set_tx_queue_stats_mapping_registers(portid_t port_id, struct rte_port *port)
  {
  	uint16_t i;
  	int diag;
  	uint8_t mapping_found = 0;
  
  	for (i = 0; i < nb_tx_queue_stats_mappings; i++) {
  		if ((tx_queue_stats_mappings[i].port_id == port_id) &&
  				(tx_queue_stats_mappings[i].queue_id < nb_txq )) {
  			diag = rte_eth_dev_set_tx_queue_stats_mapping(port_id,
  					tx_queue_stats_mappings[i].queue_id,
  					tx_queue_stats_mappings[i].stats_counter_id);
  			if (diag != 0)
  				return diag;
  			mapping_found = 1;
  		}
  	}
  	if (mapping_found)
  		port->tx_queue_stats_mapping_enabled = 1;
  	return 0;
  }
  
  static int
  set_rx_queue_stats_mapping_registers(portid_t port_id, struct rte_port *port)
  {
  	uint16_t i;
  	int diag;
  	uint8_t mapping_found = 0;
  
  	for (i = 0; i < nb_rx_queue_stats_mappings; i++) {
  		if ((rx_queue_stats_mappings[i].port_id == port_id) &&
  				(rx_queue_stats_mappings[i].queue_id < nb_rxq )) {
  			diag = rte_eth_dev_set_rx_queue_stats_mapping(port_id,
  					rx_queue_stats_mappings[i].queue_id,
  					rx_queue_stats_mappings[i].stats_counter_id);
  			if (diag != 0)
  				return diag;
  			mapping_found = 1;
  		}
  	}
  	if (mapping_found)
  		port->rx_queue_stats_mapping_enabled = 1;
  	return 0;
  }
  
  static void
  map_port_queue_stats_mapping_registers(portid_t pi, struct rte_port *port)
  {
  	int diag = 0;
  
  	diag = set_tx_queue_stats_mapping_registers(pi, port);
  	if (diag != 0) {
  		if (diag == -ENOTSUP) {
  			port->tx_queue_stats_mapping_enabled = 0;
  			printf("TX queue stats mapping not supported port id=%d\n", pi);
  		}
  		else
  			rte_exit(EXIT_FAILURE,
  					"set_tx_queue_stats_mapping_registers "
  					"failed for port id=%d diag=%d\n",
  					pi, diag);
  	}
  
  	diag = set_rx_queue_stats_mapping_registers(pi, port);
  	if (diag != 0) {
  		if (diag == -ENOTSUP) {
  			port->rx_queue_stats_mapping_enabled = 0;
  			printf("RX queue stats mapping not supported port id=%d\n", pi);
  		}
  		else
  			rte_exit(EXIT_FAILURE,
  					"set_rx_queue_stats_mapping_registers "
  					"failed for port id=%d diag=%d\n",
  					pi, diag);
  	}
  }
  
  static void
  rxtx_port_config(struct rte_port *port)
  {
  	uint16_t qid;
  
  	for (qid = 0; qid < nb_rxq; qid++) {
  		port->rx_conf[qid] = port->dev_info.default_rxconf;
  
  		/* Check if any Rx parameters have been passed */
  		if (rx_pthresh != RTE_PMD_PARAM_UNSET)
  			port->rx_conf[qid].rx_thresh.pthresh = rx_pthresh;
  
  		if (rx_hthresh != RTE_PMD_PARAM_UNSET)
  			port->rx_conf[qid].rx_thresh.hthresh = rx_hthresh;
  
  		if (rx_wthresh != RTE_PMD_PARAM_UNSET)
  			port->rx_conf[qid].rx_thresh.wthresh = rx_wthresh;
  
  		if (rx_free_thresh != RTE_PMD_PARAM_UNSET)
  			port->rx_conf[qid].rx_free_thresh = rx_free_thresh;
  
  		if (rx_drop_en != RTE_PMD_PARAM_UNSET)
  			port->rx_conf[qid].rx_drop_en = rx_drop_en;
  
  		port->nb_rx_desc[qid] = nb_rxd;
  	}
  
  	for (qid = 0; qid < nb_txq; qid++) {
  		port->tx_conf[qid] = port->dev_info.default_txconf;
  
  		/* Check if any Tx parameters have been passed */
  		if (tx_pthresh != RTE_PMD_PARAM_UNSET)
  			port->tx_conf[qid].tx_thresh.pthresh = tx_pthresh;
  
  		if (tx_hthresh != RTE_PMD_PARAM_UNSET)
  			port->tx_conf[qid].tx_thresh.hthresh = tx_hthresh;
  
  		if (tx_wthresh != RTE_PMD_PARAM_UNSET)
  			port->tx_conf[qid].tx_thresh.wthresh = tx_wthresh;
  
  		if (tx_rs_thresh != RTE_PMD_PARAM_UNSET)
  			port->tx_conf[qid].tx_rs_thresh = tx_rs_thresh;
  
  		if (tx_free_thresh != RTE_PMD_PARAM_UNSET)
  			port->tx_conf[qid].tx_free_thresh = tx_free_thresh;
  
  		port->nb_tx_desc[qid] = nb_txd;
  	}
  }
  
  void
  init_port_config(void)
  {
  	portid_t pid;
  	struct rte_port *port;
  	struct rte_eth_dev_info dev_info;
  
  	RTE_ETH_FOREACH_DEV(pid) {
  		port = &ports[pid];
  		port->dev_conf.fdir_conf = fdir_conf;
  		if (nb_rxq > 1) {
  			rte_eth_dev_info_get(pid, &dev_info);
  			port->dev_conf.rx_adv_conf.rss_conf.rss_key = NULL;
  			port->dev_conf.rx_adv_conf.rss_conf.rss_hf =
  				rss_hf & dev_info.flow_type_rss_offloads;
  		} else {
  			port->dev_conf.rx_adv_conf.rss_conf.rss_key = NULL;
  			port->dev_conf.rx_adv_conf.rss_conf.rss_hf = 0;
  		}
  
  		if (port->dcb_flag == 0) {
  			if( port->dev_conf.rx_adv_conf.rss_conf.rss_hf != 0)
  				port->dev_conf.rxmode.mq_mode = ETH_MQ_RX_RSS;
  			else
  				port->dev_conf.rxmode.mq_mode = ETH_MQ_RX_NONE;
  		}
  
  		rxtx_port_config(port);
  
  		rte_eth_macaddr_get(pid, &port->eth_addr);
  
  		map_port_queue_stats_mapping_registers(pid, port);
  #if defined RTE_LIBRTE_IXGBE_PMD && defined RTE_LIBRTE_IXGBE_BYPASS
  		rte_pmd_ixgbe_bypass_init(pid);
  #endif
  
  		if (lsc_interrupt &&
  		    (rte_eth_devices[pid].data->dev_flags &
  		     RTE_ETH_DEV_INTR_LSC))
  			port->dev_conf.intr_conf.lsc = 1;
  		if (rmv_interrupt &&
  		    (rte_eth_devices[pid].data->dev_flags &
  		     RTE_ETH_DEV_INTR_RMV))
  			port->dev_conf.intr_conf.rmv = 1;
  
  #if defined RTE_LIBRTE_PMD_SOFTNIC && defined RTE_LIBRTE_SCHED
  		/* Detect softnic port */
  		if (!strcmp(port->dev_info.driver_name, "net_softnic")) {
  			port->softnic_enable = 1;
  			memset(&port->softport, 0, sizeof(struct softnic_port));
  
  			if (!strcmp(cur_fwd_eng->fwd_mode_name, "tm"))
  				port->softport.tm_flag = 1;
  		}
  #endif
  	}
  }
  
  void set_port_slave_flag(portid_t slave_pid)
  {
  	struct rte_port *port;
  
  	port = &ports[slave_pid];
  	port->slave_flag = 1;
  }
  
  void clear_port_slave_flag(portid_t slave_pid)
  {
  	struct rte_port *port;
  
  	port = &ports[slave_pid];
  	port->slave_flag = 0;
  }
  
  uint8_t port_is_bonding_slave(portid_t slave_pid)
  {
  	struct rte_port *port;
  
  	port = &ports[slave_pid];
  	if ((rte_eth_devices[slave_pid].data->dev_flags &
  	    RTE_ETH_DEV_BONDED_SLAVE) || (port->slave_flag == 1))
  		return 1;
  	return 0;
  }
  
  const uint16_t vlan_tags[] = {
  		0,  1,  2,  3,  4,  5,  6,  7,
  		8,  9, 10, 11,  12, 13, 14, 15,
  		16, 17, 18, 19, 20, 21, 22, 23,
  		24, 25, 26, 27, 28, 29, 30, 31
  };
  
  static  int
  get_eth_dcb_conf(struct rte_eth_conf *eth_conf,
  		 enum dcb_mode_enable dcb_mode,
  		 enum rte_eth_nb_tcs num_tcs,
  		 uint8_t pfc_en)
  {
  	uint8_t i;
  
  	/*
  	 * Builds up the correct configuration for dcb+vt based on the vlan tags array
  	 * given above, and the number of traffic classes available for use.
  	 */
  	if (dcb_mode == DCB_VT_ENABLED) {
  		struct rte_eth_vmdq_dcb_conf *vmdq_rx_conf =
  				&eth_conf->rx_adv_conf.vmdq_dcb_conf;
  		struct rte_eth_vmdq_dcb_tx_conf *vmdq_tx_conf =
  				&eth_conf->tx_adv_conf.vmdq_dcb_tx_conf;
  
  		/* VMDQ+DCB RX and TX configurations */
  		vmdq_rx_conf->enable_default_pool = 0;
  		vmdq_rx_conf->default_pool = 0;
  		vmdq_rx_conf->nb_queue_pools =
  			(num_tcs ==  ETH_4_TCS ? ETH_32_POOLS : ETH_16_POOLS);
  		vmdq_tx_conf->nb_queue_pools =
  			(num_tcs ==  ETH_4_TCS ? ETH_32_POOLS : ETH_16_POOLS);
  
  		vmdq_rx_conf->nb_pool_maps = vmdq_rx_conf->nb_queue_pools;
  		for (i = 0; i < vmdq_rx_conf->nb_pool_maps; i++) {
  			vmdq_rx_conf->pool_map[i].vlan_id = vlan_tags[i];
  			vmdq_rx_conf->pool_map[i].pools =
  				1 << (i % vmdq_rx_conf->nb_queue_pools);
  		}
  		for (i = 0; i < ETH_DCB_NUM_USER_PRIORITIES; i++) {
  			vmdq_rx_conf->dcb_tc[i] = i % num_tcs;
  			vmdq_tx_conf->dcb_tc[i] = i % num_tcs;
  		}
  
  		/* set DCB mode of RX and TX of multiple queues */
  		eth_conf->rxmode.mq_mode = ETH_MQ_RX_VMDQ_DCB;
  		eth_conf->txmode.mq_mode = ETH_MQ_TX_VMDQ_DCB;
  	} else {
  		struct rte_eth_dcb_rx_conf *rx_conf =
  				&eth_conf->rx_adv_conf.dcb_rx_conf;
  		struct rte_eth_dcb_tx_conf *tx_conf =
  				&eth_conf->tx_adv_conf.dcb_tx_conf;
  
  		rx_conf->nb_tcs = num_tcs;
  		tx_conf->nb_tcs = num_tcs;
  
  		for (i = 0; i < ETH_DCB_NUM_USER_PRIORITIES; i++) {
  			rx_conf->dcb_tc[i] = i % num_tcs;
  			tx_conf->dcb_tc[i] = i % num_tcs;
  		}
  		eth_conf->rxmode.mq_mode = ETH_MQ_RX_DCB_RSS;
  		eth_conf->rx_adv_conf.rss_conf.rss_hf = rss_hf;
  		eth_conf->txmode.mq_mode = ETH_MQ_TX_DCB;
  	}
  
  	if (pfc_en)
  		eth_conf->dcb_capability_en =
  				ETH_DCB_PG_SUPPORT | ETH_DCB_PFC_SUPPORT;
  	else
  		eth_conf->dcb_capability_en = ETH_DCB_PG_SUPPORT;
  
  	return 0;
  }
  
  int
  init_port_dcb_config(portid_t pid,
  		     enum dcb_mode_enable dcb_mode,
  		     enum rte_eth_nb_tcs num_tcs,
  		     uint8_t pfc_en)
  {
  	struct rte_eth_conf port_conf;
  	struct rte_port *rte_port;
  	int retval;
  	uint16_t i;
  
  	rte_port = &ports[pid];
  
  	memset(&port_conf, 0, sizeof(struct rte_eth_conf));
  	/* Enter DCB configuration status */
  	dcb_config = 1;
  
  	port_conf.rxmode = rte_port->dev_conf.rxmode;
  	port_conf.txmode = rte_port->dev_conf.txmode;
  
  	/*set configuration of DCB in vt mode and DCB in non-vt mode*/
  	retval = get_eth_dcb_conf(&port_conf, dcb_mode, num_tcs, pfc_en);
  	if (retval < 0)
  		return retval;
  	port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_VLAN_FILTER;
  
  	/* re-configure the device . */
  	rte_eth_dev_configure(pid, nb_rxq, nb_rxq, &port_conf);
  
  	rte_eth_dev_info_get(pid, &rte_port->dev_info);
  
  	/* If dev_info.vmdq_pool_base is greater than 0,
  	 * the queue id of vmdq pools is started after pf queues.
  	 */
  	if (dcb_mode == DCB_VT_ENABLED &&
  	    rte_port->dev_info.vmdq_pool_base > 0) {
  		printf("VMDQ_DCB multi-queue mode is nonsensical"
  			" for port %d.", pid);
  		return -1;
  	}
  
  	/* Assume the ports in testpmd have the same dcb capability
  	 * and has the same number of rxq and txq in dcb mode
  	 */
  	if (dcb_mode == DCB_VT_ENABLED) {
  		if (rte_port->dev_info.max_vfs > 0) {
  			nb_rxq = rte_port->dev_info.nb_rx_queues;
  			nb_txq = rte_port->dev_info.nb_tx_queues;
  		} else {
  			nb_rxq = rte_port->dev_info.max_rx_queues;
  			nb_txq = rte_port->dev_info.max_tx_queues;
  		}
  	} else {
  		/*if vt is disabled, use all pf queues */
  		if (rte_port->dev_info.vmdq_pool_base == 0) {
  			nb_rxq = rte_port->dev_info.max_rx_queues;
  			nb_txq = rte_port->dev_info.max_tx_queues;
  		} else {
  			nb_rxq = (queueid_t)num_tcs;
  			nb_txq = (queueid_t)num_tcs;
  
  		}
  	}
  	rx_free_thresh = 64;
  
  	memcpy(&rte_port->dev_conf, &port_conf, sizeof(struct rte_eth_conf));
  
  	rxtx_port_config(rte_port);
  	/* VLAN filter */
  	rte_port->dev_conf.rxmode.offloads |= DEV_RX_OFFLOAD_VLAN_FILTER;
  	for (i = 0; i < RTE_DIM(vlan_tags); i++)
  		rx_vft_set(pid, vlan_tags[i], 1);
  
  	rte_eth_macaddr_get(pid, &rte_port->eth_addr);
  	map_port_queue_stats_mapping_registers(pid, rte_port);
  
  	rte_port->dcb_flag = 1;
  
  	return 0;
  }
  
  static void
  init_port(void)
  {
  	/* Configuration of Ethernet ports. */
  	ports = rte_zmalloc("testpmd: ports",
  			    sizeof(struct rte_port) * RTE_MAX_ETHPORTS,
  			    RTE_CACHE_LINE_SIZE);
  	if (ports == NULL) {
  		rte_exit(EXIT_FAILURE,
  				"rte_zmalloc(%d struct rte_port) failed\n",
  				RTE_MAX_ETHPORTS);
  	}
  }
  
  static void
  force_quit(void)
  {
  	pmd_test_exit();
  	prompt_exit();
  }
  
  static void
  print_stats(void)
  {
  	uint8_t i;
  	const char clr[] = { 27, '[', '2', 'J', '\0' };
  	const char top_left[] = { 27, '[', '1', ';', '1', 'H', '\0' };
  
  	/* Clear screen and move to top left */
  	printf("%s%s", clr, top_left);
  
  	printf("\nPort statistics ====================================");
  	for (i = 0; i < cur_fwd_config.nb_fwd_ports; i++)
  		nic_stats_display(fwd_ports_ids[i]);
  }
  
  static void
  signal_handler(int signum)
  {
  	if (signum == SIGINT || signum == SIGTERM) {
  		printf("\nSignal %d received, preparing to exit...\n",
  				signum);
  #ifdef RTE_LIBRTE_PDUMP
  		/* uninitialize packet capture framework */
  		rte_pdump_uninit();
  #endif
  #ifdef RTE_LIBRTE_LATENCY_STATS
  		rte_latencystats_uninit();
  #endif
  		force_quit();
  		/* Set flag to indicate the force termination. */
  		f_quit = 1;
  		/* exit with the expected status */
  		signal(signum, SIG_DFL);
  		kill(getpid(), signum);
  	}
  }
  
  int
  main(int argc, char** argv)
  {
  	int diag;
  	portid_t port_id;
  	int ret;
  
  	signal(SIGINT, signal_handler);
  	signal(SIGTERM, signal_handler);
  
  	diag = rte_eal_init(argc, argv);
  	if (diag < 0)
  		rte_panic("Cannot init EAL\n");
  
  	testpmd_logtype = rte_log_register("testpmd");
  	if (testpmd_logtype < 0)
  		rte_panic("Cannot register log type");
  	rte_log_set_level(testpmd_logtype, RTE_LOG_DEBUG);
  
  #ifdef RTE_LIBRTE_PDUMP
  	/* initialize packet capture framework */
  	rte_pdump_init(NULL);
  #endif
  
  	nb_ports = (portid_t) rte_eth_dev_count_avail();
  	if (nb_ports == 0)
  		TESTPMD_LOG(WARNING, "No probed ethernet devices\n");
  
  	/* allocate port structures, and init them */
  	init_port();
  
  	set_def_fwd_config();
  	if (nb_lcores == 0)
  		rte_panic("Empty set of forwarding logical cores - check the "
  			  "core mask supplied in the command parameters\n");
  
  	/* Bitrate/latency stats disabled by default */
  #ifdef RTE_LIBRTE_BITRATE
  	bitrate_enabled = 0;
  #endif
  #ifdef RTE_LIBRTE_LATENCY_STATS
  	latencystats_enabled = 0;
  #endif
  
  	/* on FreeBSD, mlockall() is disabled by default */
  #ifdef RTE_EXEC_ENV_BSDAPP
  	do_mlockall = 0;
  #else
  	do_mlockall = 1;
  #endif
  
  	argc -= diag;
  	argv += diag;
  	if (argc > 1)
  		launch_args_parse(argc, argv);
  
  	if (do_mlockall && mlockall(MCL_CURRENT | MCL_FUTURE)) {
  		TESTPMD_LOG(NOTICE, "mlockall() failed with error \"%s\"\n",
  			strerror(errno));
  	}
  
  	if (tx_first && interactive)
  		rte_exit(EXIT_FAILURE, "--tx-first cannot be used on "
  				"interactive mode.\n");
  
  	if (tx_first && lsc_interrupt) {
  		printf("Warning: lsc_interrupt needs to be off when "
  				" using tx_first. Disabling.\n");
  		lsc_interrupt = 0;
  	}
  
  	if (!nb_rxq && !nb_txq)
  		printf("Warning: Either rx or tx queues should be non-zero\n");
  
  	if (nb_rxq > 1 && nb_rxq > nb_txq)
  		printf("Warning: nb_rxq=%d enables RSS configuration, "
  		       "but nb_txq=%d will prevent to fully test it.\n",
  		       nb_rxq, nb_txq);
  
  	init_config();
  
  	if (hot_plug) {
  		/* enable hot plug monitoring */
  		ret = rte_dev_event_monitor_start();
  		if (ret) {
  			rte_errno = EINVAL;
  			return -1;
  		}
  		eth_dev_event_callback_register();
  
  	}
  
  	if (start_port(RTE_PORT_ALL) != 0)
  		rte_exit(EXIT_FAILURE, "Start ports failed\n");
  
  	/* set all ports to promiscuous mode by default */
  	RTE_ETH_FOREACH_DEV(port_id)
  		rte_eth_promiscuous_enable(port_id);
  
  	/* Init metrics library */
  	rte_metrics_init(rte_socket_id());
  
  #ifdef RTE_LIBRTE_LATENCY_STATS
  	if (latencystats_enabled != 0) {
  		int ret = rte_latencystats_init(1, NULL);
  		if (ret)
  			printf("Warning: latencystats init()"
  				" returned error %d\n",	ret);
  		printf("Latencystats running on lcore %d\n",
  			latencystats_lcore_id);
  	}
  #endif
  
  	/* Setup bitrate stats */
  #ifdef RTE_LIBRTE_BITRATE
  	if (bitrate_enabled != 0) {
  		bitrate_data = rte_stats_bitrate_create();
  		if (bitrate_data == NULL)
  			rte_exit(EXIT_FAILURE,
  				"Could not allocate bitrate data.\n");
  		rte_stats_bitrate_reg(bitrate_data);
  	}
  #endif
  
  #ifdef RTE_LIBRTE_CMDLINE
  	if (strlen(cmdline_filename) != 0)
  		cmdline_read_from_file(cmdline_filename);
  
  	if (interactive == 1) {
  		if (auto_start) {
  			printf("Start automatic packet forwarding\n");
  			start_packet_forwarding(0);
  		}
  		prompt();
  		pmd_test_exit();
  	} else
  #endif
  	{
  		char c;
  		int rc;
  
  		f_quit = 0;
  
  		printf("No commandline core given, start packet forwarding\n");
  		start_packet_forwarding(tx_first);
  		if (stats_period != 0) {
  			uint64_t prev_time = 0, cur_time, diff_time = 0;
  			uint64_t timer_period;
  
  			/* Convert to number of cycles */
  			timer_period = stats_period * rte_get_timer_hz();
  
  			while (f_quit == 0) {
  				cur_time = rte_get_timer_cycles();
  				diff_time += cur_time - prev_time;
  
  				if (diff_time >= timer_period) {
  					print_stats();
  					/* Reset the timer */
  					diff_time = 0;
  				}
  				/* Sleep to avoid unnecessary checks */
  				prev_time = cur_time;
  				sleep(1);
  			}
  		}
  
  		printf("Press enter to exit\n");
  		rc = read(0, &c, 1);
  		pmd_test_exit();
  		if (rc < 0)
  			return 1;
  	}
  
  	return 0;
  }
  