import 15.2.0 Octopus source

[ceph.git] / ceph / src / seastar / dpdk / examples / l3fwd / main.c

/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright(c) 2010-2016 Intel Corporation
 */

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <inttypes.h>
#include <sys/types.h>
#include <string.h>
#include <sys/queue.h>
#include <stdarg.h>
#include <errno.h>
#include <getopt.h>
#include <signal.h>
#include <stdbool.h>

#include <rte_common.h>
#include <rte_vect.h>
#include <rte_byteorder.h>
#include <rte_log.h>
#include <rte_memory.h>
#include <rte_memcpy.h>
#include <rte_eal.h>
#include <rte_launch.h>
#include <rte_atomic.h>
#include <rte_cycles.h>
#include <rte_prefetch.h>
#include <rte_lcore.h>
#include <rte_per_lcore.h>
#include <rte_branch_prediction.h>
#include <rte_interrupts.h>
#include <rte_random.h>
#include <rte_debug.h>
#include <rte_ether.h>
#include <rte_ethdev.h>
#include <rte_mempool.h>
#include <rte_mbuf.h>
#include <rte_ip.h>
#include <rte_tcp.h>
#include <rte_udp.h>
#include <rte_string_fns.h>
#include <rte_cpuflags.h>

#include <cmdline_parse.h>
#include <cmdline_parse_etheraddr.h>

#include "l3fwd.h"

/*
 * Configurable number of RX/TX ring descriptors
 */
#define RTE_TEST_RX_DESC_DEFAULT 1024
#define RTE_TEST_TX_DESC_DEFAULT 1024

#define MAX_TX_QUEUE_PER_PORT RTE_MAX_ETHPORTS
#define MAX_RX_QUEUE_PER_PORT 128

#define MAX_LCORE_PARAMS 1024

/* Static global variables used within this file. */
static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;

/**< Ports set in promiscuous mode off by default. */
static int promiscuous_on;

/* Select Longest-Prefix or Exact match. */
static int l3fwd_lpm_on;
static int l3fwd_em_on;

/* Global variables. */

static int numa_on = 1; /**< NUMA is enabled by default. */
static int parse_ptype; /**< Parse packet type using rx callback, and */
                        /**< disabled by default */
static int per_port_pool; /**< Use separate buffer pools per port; disabled */
                          /**< by default */

volatile bool force_quit;

/* ethernet addresses of ports */
uint64_t dest_eth_addr[RTE_MAX_ETHPORTS];
struct ether_addr ports_eth_addr[RTE_MAX_ETHPORTS];

xmm_t val_eth[RTE_MAX_ETHPORTS];

/* mask of enabled ports */
uint32_t enabled_port_mask;

/* Used only in exact match mode. */
int ipv6; /**< ipv6 is false by default. */
uint32_t hash_entry_number = HASH_ENTRY_NUMBER_DEFAULT;

struct lcore_conf lcore_conf[RTE_MAX_LCORE];

struct lcore_params {
        uint16_t port_id;
        uint8_t queue_id;
        uint8_t lcore_id;
} __rte_cache_aligned;

static struct lcore_params lcore_params_array[MAX_LCORE_PARAMS];
static struct lcore_params lcore_params_array_default[] = {
        {0, 0, 2},
        {0, 1, 2},
        {0, 2, 2},
        {1, 0, 2},
        {1, 1, 2},
        {1, 2, 2},
        {2, 0, 2},
        {3, 0, 3},
        {3, 1, 3},
};

static struct lcore_params * lcore_params = lcore_params_array_default;
static uint16_t nb_lcore_params = sizeof(lcore_params_array_default) /
                                sizeof(lcore_params_array_default[0]);

static struct rte_eth_conf port_conf = {
        .rxmode = {
                .mq_mode = ETH_MQ_RX_RSS,
                .max_rx_pkt_len = ETHER_MAX_LEN,
                .split_hdr_size = 0,
                .offloads = DEV_RX_OFFLOAD_CHECKSUM,
        },
        .rx_adv_conf = {
                .rss_conf = {
                        .rss_key = NULL,
                        .rss_hf = ETH_RSS_IP,
                },
        },
        .txmode = {
                .mq_mode = ETH_MQ_TX_NONE,
        },
};

static struct rte_mempool *pktmbuf_pool[RTE_MAX_ETHPORTS][NB_SOCKETS];
static uint8_t lkp_per_socket[NB_SOCKETS];

struct l3fwd_lkp_mode {
        void  (*setup)(int);
        int   (*check_ptype)(int);
        rte_rx_callback_fn cb_parse_ptype;
        int   (*main_loop)(void *);
        void* (*get_ipv4_lookup_struct)(int);
        void* (*get_ipv6_lookup_struct)(int);
};

static struct l3fwd_lkp_mode l3fwd_lkp;

static struct l3fwd_lkp_mode l3fwd_em_lkp = {
        .setup                  = setup_hash,
        .check_ptype            = em_check_ptype,
        .cb_parse_ptype         = em_cb_parse_ptype,
        .main_loop              = em_main_loop,
        .get_ipv4_lookup_struct = em_get_ipv4_l3fwd_lookup_struct,
        .get_ipv6_lookup_struct = em_get_ipv6_l3fwd_lookup_struct,
};

static struct l3fwd_lkp_mode l3fwd_lpm_lkp = {
        .setup                  = setup_lpm,
        .check_ptype            = lpm_check_ptype,
        .cb_parse_ptype         = lpm_cb_parse_ptype,
        .main_loop              = lpm_main_loop,
        .get_ipv4_lookup_struct = lpm_get_ipv4_l3fwd_lookup_struct,
        .get_ipv6_lookup_struct = lpm_get_ipv6_l3fwd_lookup_struct,
};

/*
 * Setup lookup methods for forwarding.
 * Currently exact-match and longest-prefix-match
 * are supported ones.
 */
static void
setup_l3fwd_lookup_tables(void)
{
        /* Setup HASH lookup functions. */
        if (l3fwd_em_on)
                l3fwd_lkp = l3fwd_em_lkp;
        /* Setup LPM lookup functions. */
        else
                l3fwd_lkp = l3fwd_lpm_lkp;
}

static int
check_lcore_params(void)
{
        uint8_t queue, lcore;
        uint16_t i;
        int socketid;

        for (i = 0; i < nb_lcore_params; ++i) {
                queue = lcore_params[i].queue_id;
                if (queue >= MAX_RX_QUEUE_PER_PORT) {
                        printf("invalid queue number: %hhu\n", queue);
                        return -1;
                }
                lcore = lcore_params[i].lcore_id;
                if (!rte_lcore_is_enabled(lcore)) {
                        printf("error: lcore %hhu is not enabled in lcore mask\n", lcore);
                        return -1;
                }
                if ((socketid = rte_lcore_to_socket_id(lcore) != 0) &&
                        (numa_on == 0)) {
                        printf("warning: lcore %hhu is on socket %d with numa off \n",
                                lcore, socketid);
                }
        }
        return 0;
}

static int
check_port_config(void)
{
        uint16_t portid;
        uint16_t i;

        for (i = 0; i < nb_lcore_params; ++i) {
                portid = lcore_params[i].port_id;
                if ((enabled_port_mask & (1 << portid)) == 0) {
                        printf("port %u is not enabled in port mask\n", portid);
                        return -1;
                }
                if (!rte_eth_dev_is_valid_port(portid)) {
                        printf("port %u is not present on the board\n", portid);
                        return -1;
                }
        }
        return 0;
}

static uint8_t
get_port_n_rx_queues(const uint16_t port)
{
        int queue = -1;
        uint16_t i;

        for (i = 0; i < nb_lcore_params; ++i) {
                if (lcore_params[i].port_id == port) {
                        if (lcore_params[i].queue_id == queue+1)
                                queue = lcore_params[i].queue_id;
                        else
                                rte_exit(EXIT_FAILURE, "queue ids of the port %d must be"
                                                " in sequence and must start with 0\n",
                                                lcore_params[i].port_id);
                }
        }
        return (uint8_t)(++queue);
}

static int
init_lcore_rx_queues(void)
{
        uint16_t i, nb_rx_queue;
        uint8_t lcore;

        for (i = 0; i < nb_lcore_params; ++i) {
                lcore = lcore_params[i].lcore_id;
                nb_rx_queue = lcore_conf[lcore].n_rx_queue;
                if (nb_rx_queue >= MAX_RX_QUEUE_PER_LCORE) {
                        printf("error: too many queues (%u) for lcore: %u\n",
                                (unsigned)nb_rx_queue + 1, (unsigned)lcore);
                        return -1;
                } else {
                        lcore_conf[lcore].rx_queue_list[nb_rx_queue].port_id =
                                lcore_params[i].port_id;
                        lcore_conf[lcore].rx_queue_list[nb_rx_queue].queue_id =
                                lcore_params[i].queue_id;
                        lcore_conf[lcore].n_rx_queue++;
                }
        }
        return 0;
}

/* display usage */
static void
print_usage(const char *prgname)
{
        fprintf(stderr, "%s [EAL options] --"
                " -p PORTMASK"
                " [-P]"
                " [-E]"
                " [-L]"
                " --config (port,queue,lcore)[,(port,queue,lcore)]"
                " [--eth-dest=X,MM:MM:MM:MM:MM:MM]"
                " [--enable-jumbo [--max-pkt-len PKTLEN]]"
                " [--no-numa]"
                " [--hash-entry-num]"
                " [--ipv6]"
                " [--parse-ptype]"
                " [--per-port-pool]\n\n"

                "  -p PORTMASK: Hexadecimal bitmask of ports to configure\n"
                "  -P : Enable promiscuous mode\n"
                "  -E : Enable exact match\n"
                "  -L : Enable longest prefix match (default)\n"
                "  --config (port,queue,lcore): Rx queue configuration\n"
                "  --eth-dest=X,MM:MM:MM:MM:MM:MM: Ethernet destination for port X\n"
                "  --enable-jumbo: Enable jumbo frames\n"
                "  --max-pkt-len: Under the premise of enabling jumbo,\n"
                "                 maximum packet length in decimal (64-9600)\n"
                "  --no-numa: Disable numa awareness\n"
                "  --hash-entry-num: Specify the hash entry number in hexadecimal to be setup\n"
                "  --ipv6: Set if running ipv6 packets\n"
                "  --parse-ptype: Set to use software to analyze packet type\n"
                "  --per-port-pool: Use separate buffer pool per port\n\n",
                prgname);
}

static int
parse_max_pkt_len(const char *pktlen)
{
        char *end = NULL;
        unsigned long len;

        /* parse decimal string */
        len = strtoul(pktlen, &end, 10);
        if ((pktlen[0] == '\0') || (end == NULL) || (*end != '\0'))
                return -1;

        if (len == 0)
                return -1;

        return len;
}

static int
parse_portmask(const char *portmask)
{
        char *end = NULL;
        unsigned long pm;

        /* parse hexadecimal string */
        pm = strtoul(portmask, &end, 16);
        if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
                return -1;

        if (pm == 0)
                return -1;

        return pm;
}

static int
parse_hash_entry_number(const char *hash_entry_num)
{
        char *end = NULL;
        unsigned long hash_en;
        /* parse hexadecimal string */
        hash_en = strtoul(hash_entry_num, &end, 16);
        if ((hash_entry_num[0] == '\0') || (end == NULL) || (*end != '\0'))
                return -1;

        if (hash_en == 0)
                return -1;

        return hash_en;
}

static int
parse_config(const char *q_arg)
{
        char s[256];
        const char *p, *p0 = q_arg;
        char *end;
        enum fieldnames {
                FLD_PORT = 0,
                FLD_QUEUE,
                FLD_LCORE,
                _NUM_FLD
        };
        unsigned long int_fld[_NUM_FLD];
        char *str_fld[_NUM_FLD];
        int i;
        unsigned size;

        nb_lcore_params = 0;

        while ((p = strchr(p0,'(')) != NULL) {
                ++p;
                if((p0 = strchr(p,')')) == NULL)
                        return -1;

                size = p0 - p;
                if(size >= sizeof(s))
                        return -1;

                snprintf(s, sizeof(s), "%.*s", size, p);
                if (rte_strsplit(s, sizeof(s), str_fld, _NUM_FLD, ',') != _NUM_FLD)
                        return -1;
                for (i = 0; i < _NUM_FLD; i++){
                        errno = 0;
                        int_fld[i] = strtoul(str_fld[i], &end, 0);
                        if (errno != 0 || end == str_fld[i] || int_fld[i] > 255)
                                return -1;
                }
                if (nb_lcore_params >= MAX_LCORE_PARAMS) {
                        printf("exceeded max number of lcore params: %hu\n",
                                nb_lcore_params);
                        return -1;
                }
                lcore_params_array[nb_lcore_params].port_id =
                        (uint8_t)int_fld[FLD_PORT];
                lcore_params_array[nb_lcore_params].queue_id =
                        (uint8_t)int_fld[FLD_QUEUE];
                lcore_params_array[nb_lcore_params].lcore_id =
                        (uint8_t)int_fld[FLD_LCORE];
                ++nb_lcore_params;
        }
        lcore_params = lcore_params_array;
        return 0;
}

static void
parse_eth_dest(const char *optarg)
{
        uint16_t portid;
        char *port_end;
        uint8_t c, *dest, peer_addr[6];

        errno = 0;
        portid = strtoul(optarg, &port_end, 10);
        if (errno != 0 || port_end == optarg || *port_end++ != ',')
                rte_exit(EXIT_FAILURE,
                "Invalid eth-dest: %s", optarg);
        if (portid >= RTE_MAX_ETHPORTS)
                rte_exit(EXIT_FAILURE,
                "eth-dest: port %d >= RTE_MAX_ETHPORTS(%d)\n",
                portid, RTE_MAX_ETHPORTS);

        if (cmdline_parse_etheraddr(NULL, port_end,
                &peer_addr, sizeof(peer_addr)) < 0)
                rte_exit(EXIT_FAILURE,
                "Invalid ethernet address: %s\n",
                port_end);
        dest = (uint8_t *)&dest_eth_addr[portid];
        for (c = 0; c < 6; c++)
                dest[c] = peer_addr[c];
        *(uint64_t *)(val_eth + portid) = dest_eth_addr[portid];
}

#define MAX_JUMBO_PKT_LEN  9600
#define MEMPOOL_CACHE_SIZE 256

static const char short_options[] =
        "p:"  /* portmask */
        "P"   /* promiscuous */
        "L"   /* enable long prefix match */
        "E"   /* enable exact match */
        ;

#define CMD_LINE_OPT_CONFIG "config"
#define CMD_LINE_OPT_ETH_DEST "eth-dest"
#define CMD_LINE_OPT_NO_NUMA "no-numa"
#define CMD_LINE_OPT_IPV6 "ipv6"
#define CMD_LINE_OPT_ENABLE_JUMBO "enable-jumbo"
#define CMD_LINE_OPT_HASH_ENTRY_NUM "hash-entry-num"
#define CMD_LINE_OPT_PARSE_PTYPE "parse-ptype"
#define CMD_LINE_OPT_PER_PORT_POOL "per-port-pool"
enum {
        /* long options mapped to a short option */

        /* first long only option value must be >= 256, so that we won't
         * conflict with short options */
        CMD_LINE_OPT_MIN_NUM = 256,
        CMD_LINE_OPT_CONFIG_NUM,
        CMD_LINE_OPT_ETH_DEST_NUM,
        CMD_LINE_OPT_NO_NUMA_NUM,
        CMD_LINE_OPT_IPV6_NUM,
        CMD_LINE_OPT_ENABLE_JUMBO_NUM,
        CMD_LINE_OPT_HASH_ENTRY_NUM_NUM,
        CMD_LINE_OPT_PARSE_PTYPE_NUM,
        CMD_LINE_OPT_PARSE_PER_PORT_POOL,
};

static const struct option lgopts[] = {
        {CMD_LINE_OPT_CONFIG, 1, 0, CMD_LINE_OPT_CONFIG_NUM},
        {CMD_LINE_OPT_ETH_DEST, 1, 0, CMD_LINE_OPT_ETH_DEST_NUM},
        {CMD_LINE_OPT_NO_NUMA, 0, 0, CMD_LINE_OPT_NO_NUMA_NUM},
        {CMD_LINE_OPT_IPV6, 0, 0, CMD_LINE_OPT_IPV6_NUM},
        {CMD_LINE_OPT_ENABLE_JUMBO, 0, 0, CMD_LINE_OPT_ENABLE_JUMBO_NUM},
        {CMD_LINE_OPT_HASH_ENTRY_NUM, 1, 0, CMD_LINE_OPT_HASH_ENTRY_NUM_NUM},
        {CMD_LINE_OPT_PARSE_PTYPE, 0, 0, CMD_LINE_OPT_PARSE_PTYPE_NUM},
        {CMD_LINE_OPT_PER_PORT_POOL, 0, 0, CMD_LINE_OPT_PARSE_PER_PORT_POOL},
        {NULL, 0, 0, 0}
};

/*
 * This expression is used to calculate the number of mbufs needed
 * depending on user input, taking  into account memory for rx and
 * tx hardware rings, cache per lcore and mtable per port per lcore.
 * RTE_MAX is used to ensure that NB_MBUF never goes below a minimum
 * value of 8192
 */
#define NB_MBUF(nports) RTE_MAX(        \
        (nports*nb_rx_queue*nb_rxd +            \
        nports*nb_lcores*MAX_PKT_BURST +        \
        nports*n_tx_queue*nb_txd +              \
        nb_lcores*MEMPOOL_CACHE_SIZE),          \
        (unsigned)8192)

/* Parse the argument given in the command line of the application */
static int
parse_args(int argc, char **argv)
{
        int opt, ret;
        char **argvopt;
        int option_index;
        char *prgname = argv[0];

        argvopt = argv;

        /* Error or normal output strings. */
        while ((opt = getopt_long(argc, argvopt, short_options,
                                lgopts, &option_index)) != EOF) {

                switch (opt) {
                /* portmask */
                case 'p':
                        enabled_port_mask = parse_portmask(optarg);
                        if (enabled_port_mask == 0) {
                                fprintf(stderr, "Invalid portmask\n");
                                print_usage(prgname);
                                return -1;
                        }
                        break;

                case 'P':
                        promiscuous_on = 1;
                        break;

                case 'E':
                        l3fwd_em_on = 1;
                        break;

                case 'L':
                        l3fwd_lpm_on = 1;
                        break;

                /* long options */
                case CMD_LINE_OPT_CONFIG_NUM:
                        ret = parse_config(optarg);
                        if (ret) {
                                fprintf(stderr, "Invalid config\n");
                                print_usage(prgname);
                                return -1;
                        }
                        break;

                case CMD_LINE_OPT_ETH_DEST_NUM:
                        parse_eth_dest(optarg);
                        break;

                case CMD_LINE_OPT_NO_NUMA_NUM:
                        numa_on = 0;
                        break;

                case CMD_LINE_OPT_IPV6_NUM:
                        ipv6 = 1;
                        break;

                case CMD_LINE_OPT_ENABLE_JUMBO_NUM: {
                        const struct option lenopts = {
                                "max-pkt-len", required_argument, 0, 0
                        };

                        port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
                        port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;

                        /*
                         * if no max-pkt-len set, use the default
                         * value ETHER_MAX_LEN.
                         */
                        if (getopt_long(argc, argvopt, "",
                                        &lenopts, &option_index) == 0) {
                                ret = parse_max_pkt_len(optarg);
                                if (ret < 64 || ret > MAX_JUMBO_PKT_LEN) {
                                        fprintf(stderr,
                                                "invalid maximum packet length\n");
                                        print_usage(prgname);
                                        return -1;
                                }
                                port_conf.rxmode.max_rx_pkt_len = ret;
                        }
                        break;
                }

                case CMD_LINE_OPT_HASH_ENTRY_NUM_NUM:
                        ret = parse_hash_entry_number(optarg);
                        if ((ret > 0) && (ret <= L3FWD_HASH_ENTRIES)) {
                                hash_entry_number = ret;
                        } else {
                                fprintf(stderr, "invalid hash entry number\n");
                                print_usage(prgname);
                                return -1;
                        }
                        break;

                case CMD_LINE_OPT_PARSE_PTYPE_NUM:
                        printf("soft parse-ptype is enabled\n");
                        parse_ptype = 1;
                        break;

                case CMD_LINE_OPT_PARSE_PER_PORT_POOL:
                        printf("per port buffer pool is enabled\n");
                        per_port_pool = 1;
                        break;

                default:
                        print_usage(prgname);
                        return -1;
                }
        }

        /* If both LPM and EM are selected, return error. */
        if (l3fwd_lpm_on && l3fwd_em_on) {
                fprintf(stderr, "LPM and EM are mutually exclusive, select only one\n");
                return -1;
        }

        /*
         * Nothing is selected, pick longest-prefix match
         * as default match.
         */
        if (!l3fwd_lpm_on && !l3fwd_em_on) {
                fprintf(stderr, "LPM or EM none selected, default LPM on\n");
                l3fwd_lpm_on = 1;
        }

        /*
         * ipv6 and hash flags are valid only for
         * exact macth, reset them to default for
         * longest-prefix match.
         */
        if (l3fwd_lpm_on) {
                ipv6 = 0;
                hash_entry_number = HASH_ENTRY_NUMBER_DEFAULT;
        }

        if (optind >= 0)
                argv[optind-1] = prgname;

        ret = optind-1;
        optind = 1; /* reset getopt lib */
        return ret;
}

static void
print_ethaddr(const char *name, const struct ether_addr *eth_addr)
{
        char buf[ETHER_ADDR_FMT_SIZE];
        ether_format_addr(buf, ETHER_ADDR_FMT_SIZE, eth_addr);
        printf("%s%s", name, buf);
}

static int
init_mem(uint16_t portid, unsigned int nb_mbuf)
{
        struct lcore_conf *qconf;
        int socketid;
        unsigned lcore_id;
        char s[64];

        for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
                if (rte_lcore_is_enabled(lcore_id) == 0)
                        continue;

                if (numa_on)
                        socketid = rte_lcore_to_socket_id(lcore_id);
                else
                        socketid = 0;

                if (socketid >= NB_SOCKETS) {
                        rte_exit(EXIT_FAILURE,
                                "Socket %d of lcore %u is out of range %d\n",
                                socketid, lcore_id, NB_SOCKETS);
                }

                if (pktmbuf_pool[portid][socketid] == NULL) {
                        snprintf(s, sizeof(s), "mbuf_pool_%d:%d",
                                 portid, socketid);
                        pktmbuf_pool[portid][socketid] =
                                rte_pktmbuf_pool_create(s, nb_mbuf,
                                        MEMPOOL_CACHE_SIZE, 0,
                                        RTE_MBUF_DEFAULT_BUF_SIZE, socketid);
                        if (pktmbuf_pool[portid][socketid] == NULL)
                                rte_exit(EXIT_FAILURE,
                                        "Cannot init mbuf pool on socket %d\n",
                                        socketid);
                        else
                                printf("Allocated mbuf pool on socket %d\n",
                                        socketid);

                        /* Setup either LPM or EM(f.e Hash). But, only once per
                         * available socket.
                         */
                        if (!lkp_per_socket[socketid]) {
                                l3fwd_lkp.setup(socketid);
                                lkp_per_socket[socketid] = 1;
                        }
                }
                qconf = &lcore_conf[lcore_id];
                qconf->ipv4_lookup_struct =
                        l3fwd_lkp.get_ipv4_lookup_struct(socketid);
                qconf->ipv6_lookup_struct =
                        l3fwd_lkp.get_ipv6_lookup_struct(socketid);
        }
        return 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 */
        uint16_t portid;
        uint8_t count, all_ports_up, print_flag = 0;
        struct rte_eth_link link;

        printf("\nChecking link status");
        fflush(stdout);
        for (count = 0; count <= MAX_CHECK_TIME; count++) {
                if (force_quit)
                        return;
                all_ports_up = 1;
                RTE_ETH_FOREACH_DEV(portid) {
                        if (force_quit)
                                return;
                        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) {
                        printf(".");
                        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;
                        printf("done\n");
                }
        }
}

static void
signal_handler(int signum)
{
        if (signum == SIGINT || signum == SIGTERM) {
                printf("\n\nSignal %d received, preparing to exit...\n",
                                signum);
                force_quit = true;
        }
}

static int
prepare_ptype_parser(uint16_t portid, uint16_t queueid)
{
        if (parse_ptype) {
                printf("Port %d: softly parse packet type info\n", portid);
                if (rte_eth_add_rx_callback(portid, queueid,
                                            l3fwd_lkp.cb_parse_ptype,
                                            NULL))
                        return 1;

                printf("Failed to add rx callback: port=%d\n", portid);
                return 0;
        }

        if (l3fwd_lkp.check_ptype(portid))
                return 1;

        printf("port %d cannot parse packet type, please add --%s\n",
               portid, CMD_LINE_OPT_PARSE_PTYPE);
        return 0;
}

int
main(int argc, char **argv)
{
        struct lcore_conf *qconf;
        struct rte_eth_dev_info dev_info;
        struct rte_eth_txconf *txconf;
        int ret;
        unsigned nb_ports;
        uint16_t queueid, portid;
        unsigned lcore_id;
        uint32_t n_tx_queue, nb_lcores;
        uint8_t nb_rx_queue, queue, socketid;

        /* init EAL */
        ret = rte_eal_init(argc, argv);
        if (ret < 0)
                rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n");
        argc -= ret;
        argv += ret;

        force_quit = false;
        signal(SIGINT, signal_handler);
        signal(SIGTERM, signal_handler);

        /* pre-init dst MACs for all ports to 02:00:00:00:00:xx */
        for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
                dest_eth_addr[portid] =
                        ETHER_LOCAL_ADMIN_ADDR + ((uint64_t)portid << 40);
                *(uint64_t *)(val_eth + portid) = dest_eth_addr[portid];
        }

        /* parse application arguments (after the EAL ones) */
        ret = parse_args(argc, argv);
        if (ret < 0)
                rte_exit(EXIT_FAILURE, "Invalid L3FWD parameters\n");

        if (check_lcore_params() < 0)
                rte_exit(EXIT_FAILURE, "check_lcore_params failed\n");

        ret = init_lcore_rx_queues();
        if (ret < 0)
                rte_exit(EXIT_FAILURE, "init_lcore_rx_queues failed\n");

        nb_ports = rte_eth_dev_count_avail();

        if (check_port_config() < 0)
                rte_exit(EXIT_FAILURE, "check_port_config failed\n");

        nb_lcores = rte_lcore_count();

        /* Setup function pointers for lookup method. */
        setup_l3fwd_lookup_tables();

        /* initialize all ports */
        RTE_ETH_FOREACH_DEV(portid) {
                struct rte_eth_conf local_port_conf = port_conf;

                /* skip ports that are not enabled */
                if ((enabled_port_mask & (1 << portid)) == 0) {
                        printf("\nSkipping disabled port %d\n", portid);
                        continue;
                }

                /* init port */
                printf("Initializing port %d ... ", portid );
                fflush(stdout);

                nb_rx_queue = get_port_n_rx_queues(portid);
                n_tx_queue = nb_lcores;
                if (n_tx_queue > MAX_TX_QUEUE_PER_PORT)
                        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);
                if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
                        local_port_conf.txmode.offloads |=
                                DEV_TX_OFFLOAD_MBUF_FAST_FREE;

                local_port_conf.rx_adv_conf.rss_conf.rss_hf &=
                        dev_info.flow_type_rss_offloads;
                if (local_port_conf.rx_adv_conf.rss_conf.rss_hf !=
                                port_conf.rx_adv_conf.rss_conf.rss_hf) {
                        printf("Port %u modified RSS hash function based on hardware support,"
                                "requested:%#"PRIx64" configured:%#"PRIx64"\n",
                                portid,
                                port_conf.rx_adv_conf.rss_conf.rss_hf,
                                local_port_conf.rx_adv_conf.rss_conf.rss_hf);
                }

                ret = rte_eth_dev_configure(portid, nb_rx_queue,
                                        (uint16_t)n_tx_queue, &local_port_conf);
                if (ret < 0)
                        rte_exit(EXIT_FAILURE,
                                "Cannot configure device: err=%d, port=%d\n",
                                ret, portid);

                ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
                                                       &nb_txd);
                if (ret < 0)
                        rte_exit(EXIT_FAILURE,
                                 "Cannot adjust number of descriptors: err=%d, "
                                 "port=%d\n", ret, portid);

                rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
                print_ethaddr(" Address:", &ports_eth_addr[portid]);
                printf(", ");
                print_ethaddr("Destination:",
                        (const struct ether_addr *)&dest_eth_addr[portid]);
                printf(", ");

                /*
                 * prepare src MACs for each port.
                 */
                ether_addr_copy(&ports_eth_addr[portid],
                        (struct ether_addr *)(val_eth + portid) + 1);

                /* init memory */
                if (!per_port_pool) {
                        /* portid = 0; this is *not* signifying the first port,
                         * rather, it signifies that portid is ignored.
                         */
                        ret = init_mem(0, NB_MBUF(nb_ports));
                } else {
                        ret = init_mem(portid, NB_MBUF(1));
                }
                if (ret < 0)
                        rte_exit(EXIT_FAILURE, "init_mem failed\n");

                /* init one TX queue per couple (lcore,port) */
                queueid = 0;
                for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
                        if (rte_lcore_is_enabled(lcore_id) == 0)
                                continue;

                        if (numa_on)
                                socketid =
                                (uint8_t)rte_lcore_to_socket_id(lcore_id);
                        else
                                socketid = 0;

                        printf("txq=%u,%d,%d ", lcore_id, queueid, socketid);
                        fflush(stdout);

                        txconf = &dev_info.default_txconf;
                        txconf->offloads = local_port_conf.txmode.offloads;
                        ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
                                                     socketid, txconf);
                        if (ret < 0)
                                rte_exit(EXIT_FAILURE,
                                        "rte_eth_tx_queue_setup: err=%d, "
                                        "port=%d\n", ret, portid);

                        qconf = &lcore_conf[lcore_id];
                        qconf->tx_queue_id[portid] = queueid;
                        queueid++;

                        qconf->tx_port_id[qconf->n_tx_port] = portid;
                        qconf->n_tx_port++;
                }
                printf("\n");
        }

        for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
                if (rte_lcore_is_enabled(lcore_id) == 0)
                        continue;
                qconf = &lcore_conf[lcore_id];
                printf("\nInitializing rx queues on lcore %u ... ", lcore_id );
                fflush(stdout);
                /* init RX queues */
                for(queue = 0; queue < qconf->n_rx_queue; ++queue) {
                        struct rte_eth_dev *dev;
                        struct rte_eth_conf *conf;
                        struct rte_eth_rxconf rxq_conf;

                        portid = qconf->rx_queue_list[queue].port_id;
                        queueid = qconf->rx_queue_list[queue].queue_id;
                        dev = &rte_eth_devices[portid];
                        conf = &dev->data->dev_conf;

                        if (numa_on)
                                socketid =
                                (uint8_t)rte_lcore_to_socket_id(lcore_id);
                        else
                                socketid = 0;

                        printf("rxq=%d,%d,%d ", portid, queueid, socketid);
                        fflush(stdout);

                        rte_eth_dev_info_get(portid, &dev_info);
                        rxq_conf = dev_info.default_rxconf;
                        rxq_conf.offloads = conf->rxmode.offloads;
                        if (!per_port_pool)
                                ret = rte_eth_rx_queue_setup(portid, queueid,
                                                nb_rxd, socketid,
                                                &rxq_conf,
                                                pktmbuf_pool[0][socketid]);
                        else
                                ret = rte_eth_rx_queue_setup(portid, queueid,
                                                nb_rxd, socketid,
                                                &rxq_conf,
                                                pktmbuf_pool[portid][socketid]);
                        if (ret < 0)
                                rte_exit(EXIT_FAILURE,
                                "rte_eth_rx_queue_setup: err=%d, port=%d\n",
                                ret, portid);
                }
        }

        printf("\n");

        /* start ports */
        RTE_ETH_FOREACH_DEV(portid) {
                if ((enabled_port_mask & (1 << portid)) == 0) {
                        continue;
                }
                /* Start device */
                ret = rte_eth_dev_start(portid);
                if (ret < 0)
                        rte_exit(EXIT_FAILURE,
                                "rte_eth_dev_start: err=%d, port=%d\n",
                                ret, portid);

                /*
                 * If enabled, put device in promiscuous mode.
                 * This allows IO forwarding mode to forward packets
                 * to itself through 2 cross-connected  ports of the
                 * target machine.
                 */
                if (promiscuous_on)
                        rte_eth_promiscuous_enable(portid);
        }

        printf("\n");

        for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
                if (rte_lcore_is_enabled(lcore_id) == 0)
                        continue;
                qconf = &lcore_conf[lcore_id];
                for (queue = 0; queue < qconf->n_rx_queue; ++queue) {
                        portid = qconf->rx_queue_list[queue].port_id;
                        queueid = qconf->rx_queue_list[queue].queue_id;
                        if (prepare_ptype_parser(portid, queueid) == 0)
                                rte_exit(EXIT_FAILURE, "ptype check fails\n");
                }
        }


        check_all_ports_link_status(enabled_port_mask);

        ret = 0;
        /* launch per-lcore init on every lcore */
        rte_eal_mp_remote_launch(l3fwd_lkp.main_loop, NULL, CALL_MASTER);
        RTE_LCORE_FOREACH_SLAVE(lcore_id) {
                if (rte_eal_wait_lcore(lcore_id) < 0) {
                        ret = -1;
                        break;
                }
        }

        /* stop ports */
        RTE_ETH_FOREACH_DEV(portid) {
                if ((enabled_port_mask & (1 << portid)) == 0)
                        continue;
                printf("Closing port %d...", portid);
                rte_eth_dev_stop(portid);
                rte_eth_dev_close(portid);
                printf(" Done\n");
        }
        printf("Bye...\n");

        return ret;
}