odp_packet_gen.c

/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright (c) 2020-2026 Nokia
 */
 
/* enable usleep */
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
 
#include <stdio.h>
#include <string.h>
#include <stdint.h>
#include <inttypes.h>
#include <signal.h>
#include <stdlib.h>
#include <getopt.h>
#include <unistd.h>
 
#include <odp_api.h>
#include <odp/helper/odph_api.h>
#include <pktio_common.h>
 
#if ODP_THREAD_COUNT_MAX > 33
/* One control thread, even number of workers */
#define MAX_THREADS  33
#else
#define MAX_THREADS  ODP_THREAD_COUNT_MAX
#endif
 
#define MAX_WORKERS  (MAX_THREADS - 1)
 
/* At least one control and one worker thread */
ODP_STATIC_ASSERT(MAX_WORKERS >= 1, "Too few threads");
 
/* Maximum number of packet IO interfaces */
#define MAX_PKTIOS        16
/* Maximum number of packets to be allocated for
 * one transmit round: bursts * burst_size * bins */
#define MAX_ALLOC_PACKETS (64 * 1024)
/* Maximum number of packet length bins */
#define MAX_BINS          1024
#define MAX_PKTIO_NAME    255
#define RX_THREAD         1
#define TX_THREAD         2
#define MAX_VLANS         4
#define ETH_TYPE_QINQ     0x88a8
/* Number of random 16-bit words used to generate random length packets */
#define RAND_16BIT_WORDS  MAX_BINS
/* Max retries to generate random data */
#define MAX_RAND_RETRIES  1000
#define MAX_HDR_NAME_LEN  32
#define MAX_HDR_FIELDS    16
#define MAX_HDR_VALUE_SZ  8
#define TOKEN_DELIMITER   ","
#define FIELD_DELIMITER   ":"
 
/* Use don't free */
#define TX_MODE_DF        0
/* Use static references */
#define TX_MODE_REF       1
/* Use packet copy */
#define TX_MODE_COPY      2
 
/* Minimum number of packets to receive in CI test */
#define MIN_RX_PACKETS_CI 160
 
/* Identifier for payload-timestamped packets */
#define TS_MAGIC 0xff88ee99ddaaccbb
 
#define S_(x) #x
#define S(x) S_(x)
 
enum {
    L4_PROTO_UDP = 0,
    L4_PROTO_TCP,
    L4_PROTO_NONE
};
 
ODP_STATIC_ASSERT(MAX_PKTIOS <= UINT8_MAX, "Interface index must fit into uint8_t\n");
 
typedef struct {
    char name[MAX_HDR_NAME_LEN + 1];
    uint64_t value;
    int64_t diff;
    uint32_t len;
} hdr_field_t;
 
typedef struct {
    hdr_field_t fields[MAX_HDR_FIELDS];
    uint32_t tot_len;
    uint16_t eth_type;
} hdr_t;
 
typedef struct test_options_t {
    uint64_t gap_nsec;
    uint64_t quit;
    uint64_t update_msec;
    uint32_t num_rx;
    uint32_t num_tx;
    uint32_t num_cpu;
    uint32_t num_pktio;
    uint32_t num_pkt;
    uint32_t pkt_len;
    uint8_t  use_rand_pkt_len;
    uint8_t  direct_rx;
    uint32_t rand_pkt_len_min;
    uint32_t rand_pkt_len_max;
    uint32_t rand_pkt_len_bins;
    uint32_t hdr_len;
    uint32_t burst_size;
    uint32_t bursts;
    uint16_t eth_type;
    uint32_t num_vlan;
    uint32_t l3_len;
    uint32_t ipv4_src;
    uint32_t ipv4_dst;
    uint16_t src_port;
    uint16_t dst_port;
    uint32_t wait_sec;
    uint32_t wait_start_sec;
    uint32_t mtu;
    uint32_t num_custom_l3;
    struct {
        odp_lso_profile_param_t param;
        uint32_t payload_offset;
        uint32_t max_payload_len;
        odp_bool_t enabled;
    } lso;
    uint8_t l4_proto;
    int tx_mode;
    odp_bool_t promisc_mode;
    odp_bool_t calc_latency;
    odp_bool_t calc_cs;
    odp_bool_t cs_offload;
    odp_bool_t fill_pl;
 
    struct vlan_hdr {
        uint16_t tpid;
        uint16_t tci;
    } vlan[MAX_VLANS];
 
    struct {
        uint32_t src_port;
        uint32_t dst_port;
    } c_mode;
 
    char     pktio_name[MAX_PKTIOS][MAX_PKTIO_NAME + 1];
    char     ipv4_src_s[24];
    char     ipv4_dst_s[24];
 
    hdr_t custom_l3;
 
} test_options_t;
 
typedef struct thread_arg_t {
    void *global;
    int tx_thr;
 
    /* pktout queue per pktio interface (per thread) */
    odp_pktout_queue_t pktout[MAX_PKTIOS];
 
    /* In direct_rx mode, pktin queue per pktio interface (per thread) */
    odp_pktin_queue_t pktin[MAX_PKTIOS];
 
    /* LSO profile per pktio interface */
    odp_lso_profile_t lso_profile[MAX_PKTIOS];
 
    /* Pre-built packets for TX thread */
    odp_packet_t packet[MAX_PKTIOS][MAX_ALLOC_PACKETS];
 
} thread_arg_t;
 
typedef struct ODP_ALIGNED_CACHE thread_stat_t {
    uint64_t time_nsec;
    uint64_t rx_timeouts;
    uint64_t rx_packets;
    uint64_t rx_bytes;
    uint64_t rx_lat_nsec;
    uint64_t rx_lat_min_nsec;
    uint64_t rx_lat_max_nsec;
    uint64_t rx_lat_packets;
 
    uint64_t tx_timeouts;
    uint64_t tx_packets;
    uint64_t tx_bytes;
    uint64_t tx_drops;
 
    int      thread_type;
 
    struct {
        uint64_t rx_packets;
        uint64_t tx_packets;
 
    } pktio[MAX_PKTIOS];
 
} thread_stat_t;
 
typedef struct test_global_t {
    test_options_t test_options;
    odp_atomic_u32_t exit_test;
    odp_barrier_t barrier;
    odp_cpumask_t cpumask;
    odp_pool_t pool;
    uint64_t drained;
    odph_thread_t thread_tbl[MAX_THREADS];
    thread_stat_t stat[MAX_THREADS];
    thread_arg_t thread_arg[MAX_THREADS];
 
    struct {
        odph_ethaddr_t eth_src;
        odph_ethaddr_t eth_dst;
        odp_pktio_t pktio;
        odp_lso_profile_t lso_profile;
        odp_pktout_queue_t pktout[MAX_THREADS];
        odp_pktin_queue_t pktin[MAX_THREADS];
        int started;
 
    } pktio[MAX_PKTIOS];
 
    /* Interface lookup table. Table index is pktio_index of the API. */
    uint8_t if_from_pktio_idx[ODP_PKTIO_MAX_INDEX + 1];
 
    uint32_t num_tx_pkt;
    uint32_t num_bins;
    uint32_t len_bin[MAX_BINS];
 
    /* Per thread random data */
    uint16_t rand_data[MAX_THREADS][RAND_16BIT_WORDS];
 
} test_global_t;
 
typedef struct ODP_PACKED {
    uint64_t magic;
    odp_time_t tx_ts;
} ts_data_t;
 
typedef struct {
    uint64_t nsec;
    uint64_t min;
    uint64_t max;
    uint64_t packets;
} rx_lat_data_t;
 
typedef int (*send_fn_t)(odp_pktout_queue_t pktout, odp_packet_t pkt[], uint32_t num,
             int tx_mode, uint64_t *drop_bytes, const odp_packet_lso_opt_t *lso_opt);
 
static test_global_t *test_global;
 
static void print_usage(void)
{
    printf("\n"
           "ODP packet generator\n"
           "\n"
           "Usage: odp_packet_gen [options]\n"
           "\n"
           "  Mandatory:\n"
           "  -i, --interface <name>  Packet IO interfaces. Comma-separated list of\n"
           "                          interface names (no spaces) e.g. eth0,eth1.\n"
           "                          At least one interface is required.\n"
           "\n");
    printf("  Optional:\n"
           "  -e, --eth_dst <mac>       Destination MAC address. Comma-separated list of\n"
           "                            addresses (no spaces), one address per packet IO\n"
           "                            interface e.g. AA:BB:CC:DD:EE:FF,11:22:33:44:55:66\n"
           "                            Default per interface: 02:00:00:A0:B0:CX, where X = 0,1,...\n"
           "  -v, --vlan <tpid:tci>     VLAN configuration. Comma-separated list of VLAN TPID:TCI\n"
           "                            values in hexadecimal, starting from the outer most VLAN.\n"
           "                            For example:\n"
           "                            VLAN 200 (decimal):          0x8100:c8\n"
           "                            Double tagged VLANs 1 and 2: 0x88a8:1,0x8100:2\n"
           "  -r, --num_rx              Number of receive threads. Default: 1\n"
           "  -t, --num_tx              Number of transmit threads. Default: 1\n"
           "  -T, --lso <options>       Transmit packets with Large Send Offload (LSO). Specify\n"
           "                            LSO options as comma-separated list (no spaces) in\n"
           "                            format: protocol,payload_offset(B),max_payload_len(B). E.g.:\n"
           "                              0,34,1500\n"
           "                            In case of ODP_LSO_PROTO_CUSTOM the list is extended by\n"
           "                            up to %d custom modification options. For ODP_LSO_ADD_*\n"
           "                            operations the format is:\n"
           "                              mod_op:offset(B):size(B)\n"
           "                            For ODP_LSO_WRITE_BITS the format is:\n"
           "                              mod_op:offset(B):size(B):fm:fv:mm:mv:lm:lv\n"
           "                            where size must be 1 and fm/fv, mm/mv, lm/lv are the\n"
           "                            mask/value byte pairs to write to the first, middle\n"
           "                            and last segments respectively. Custom modification\n"
           "                            options are separated by commas. E.g.:\n"
           "                              2,22,1500,0:19:1\n"
           "                              2,22,1500,3:19:1:0xff:0x80:0xff:0x00:0xff:0x40\n"
           "                            Supported protocols:\n"
           "                              0: ODP_LSO_PROTO_IPV4\n"
           "                              1: ODP_LSO_PROTO_TCP_IPV4\n"
           "                              2: ODP_LSO_PROTO_CUSTOM\n"
           "                            Custom modification options:\n"
           "                              0: ODP_LSO_ADD_SEGMENT_NUM\n"
           "                              1: ODP_LSO_ADD_PAYLOAD_LEN\n"
           "                              2: ODP_LSO_ADD_PAYLOAD_OFFSET\n"
           "                              3: ODP_LSO_WRITE_BITS\n"
           "                            Depending on the implementation, all listed LSO options\n"
           "                            may not be always supported.\n"
           "  -n, --num_pkt             Number of packets in the pool. Default: 1000\n"
           "  -l, --len                 Packet length. Default: 512\n"
           "  -L, --len_range <min,max,bins>\n"
           "                            Random packet length. Specify the minimum and maximum\n"
           "                            packet lengths and the number of bins. To reduce pool size\n"
           "                            requirement the length range can be divided into even sized\n"
           "                            bins (max %u). Min and max size packets are always used and included\n"
           "                            into the number of bins (bins >= 2). Bin value of 0 means\n"
           "                            that each packet length is used. Comma-separated (no spaces).\n"
           "                            Overrides standard packet length option.\n"
           "  -D, --direct_rx           Direct input mode (default: 0)\n"
           "                              0: Use scheduler for packet input\n"
           "                              1: Poll packet input in direct mode\n",
           ODP_LSO_MAX_CUSTOM, MAX_BINS);
    printf("  -m, --tx_mode             Transmit mode (default 1):\n"
           "                              0: Re-send packets with don't free option\n"
           "                              1: Send static packet references. Some features may\n"
           "                                 not be available with references.\n"
           "                              2: Send copies of packets\n"
           "  -M, --mtu <len>           Interface MTU in bytes.\n"
           "  -b, --burst_size          Transmit burst size. Default: 8\n"
           "  -x, --bursts              Number of bursts per one transmit round. Default: 1\n"
           "  -g, --gap                 Gap between transmit rounds in nsec. Default: 1000000\n"
           "                            Transmit packet rate per interface:\n"
           "                              num_tx * burst_size * bursts * (10^9 / gap)\n"
           "  -s, --ipv4_src            IPv4 source address. Default: 192.168.0.1\n"
           "  -d, --ipv4_dst            IPv4 destination address. Default: 192.168.0.2\n"
           "  -o, --src_port            UDP/TCP source port. Default: 10000\n"
           "  -p, --dst_port            UDP/TCP destination port. Default: 20000\n"
           "  -N, --proto               L4 protocol. Default: 0\n"
           "                              0: UDP\n"
           "                              1: TCP\n"
           "                              2: none\n"
           "  -P, --promisc_mode        Enable promiscuous mode.\n"
           "  -a, --latency             Calculate latency. Cannot be used with packet\n"
           "                            references (see \"--tx_mode\").\n"
           "  -c, --c_mode <counts>     Counter mode for incrementing UDP/TCP port numbers.\n"
           "                            Specify the number of port numbers used starting from\n"
           "                            src_port/dst_port. Comma-separated (no spaces) list of\n"
           "                            count values: <src_port count>,<dst_port count>\n"
           "                            Default value: 0,0\n"
           "  -C, --no_udp_checksum     Do not calculate UDP SW checksum. Instead, set it to\n"
           "                            zero in every packet, this may be overridden by\n"
           "                            '--checksum_offload' option.\n"
           "  -X, --checksum_offload    Enable L4 checksum offloads: checksums are checked\n"
           "                            at input and inserted at output.\n"
           "  -A, --no_payload_fill     Do not fill payload. By default, payload is filled\n"
           "                            with a pattern until the end of first packet\n"
           "                            segment.\n"
           "  -q, --quit                Quit after this many transmit rounds.\n"
           "                            Default: 0 (don't quit)\n"
           "  -u, --update_stat <msec>  Update and print statistics every <msec> milliseconds.\n"
           "                            0: Don't print statistics periodically (default)\n"
           "  -h, --help                This help\n"
           "  -w, --wait <sec>          Wait up to <sec> seconds for network links to be up.\n"
           "                            Default: 0 (don't check link status)\n");
    printf("  -U, --custom_l3 <definition>\n"
           "                            Define a custom L3 header for packets. This\n"
           "                            overrides the default IP header and any related\n"
           "                            options. Elements should be comma-separated (no\n"
           "                            spaces). Definition should begin with an EtherType\n"
           "                            value, followed by field definitions. Each field\n"
           "                            should be in the format\n"
           "                            <name>:<length(B)>:<value>:<diff>, i.e.\n"
           "                            colon-separated (no spaces). Name/length/value\n"
           "                            elements are self-explanatory, the 'diff' element\n"
           "                            defines a value that's added (subtracted if\n"
           "                            negative) to the 'value' element in successive\n"
           "                            packets. Fields are used in the order they are\n"
           "                            defined in the string. E.g.:\n\n"
           "                                0x900,a:4:0xaaaaaaaa:1,b:1:0xff:-2\n\n"
           "                            would result in a header of EtherType 0x900 with\n"
           "                            fields 'a' and 'b' of values and lengths\n"
           "                            '0xaaaaaaaa' (4 bytes) and '0xff' (1 byte)\n"
           "                            respectively. Value 1 is added to '0xaaaaaaaa' and\n"
           "                            -2 to '0xff' in successive packets. EtherType and\n"
           "                            'value' elements should be given in hexadecimals.\n"
           "                            Field names are only for information and debugging\n"
           "                            purposes. Maximum amount of fields supported is %u,\n"
           "                            maximum name length of a field is %u and maximum\n"
           "                            value size is %u bytes.\n"
           "  -W, --wait_start <sec>    Wait <sec> seconds before starting traffic. Default: 0\n"
           "\n", MAX_HDR_FIELDS, MAX_HDR_NAME_LEN, MAX_HDR_VALUE_SZ);
}
 
static int parse_vlan(const char *str, test_global_t *global)
{
    struct vlan_hdr *vlan;
    const char *start = str;
    char *end;
    int num_vlan = 0;
    intptr_t str_len = strlen(str);
 
    while (num_vlan < MAX_VLANS) {
        vlan = &global->test_options.vlan[num_vlan];
 
        /* TPID in hexadecimal */
        end = NULL;
        vlan->tpid = strtoul(start, &end, 16);
        if (end < start)
            break;
 
        /* Skip ':' */
        start = end + 1;
        if (start - str >= str_len)
            break;
 
        /* TCI in hexadecimal */
        end = NULL;
        vlan->tci = strtoul(start, &end, 16);
        if (end < start)
            break;
 
        num_vlan++;
 
        /* Skip ',' or stop at the string end */
        start = end + 1;
        if (start - str >= str_len)
            break;
    }
 
    return num_vlan;
}
 
static inline uint64_t bswap(uint64_t in, uint32_t len)
{
    uint8_t byte;
    uint64_t result = 0;
 
    if (ODP_BIG_ENDIAN || len == sizeof(uint8_t))
        return in;
 
    for (uint32_t i = 0; i < len; i++) {
        byte = (in >> (8 * i)) & 0xff;
        result |= ((uint64_t)byte << (8 * (len - 1 - i)));
    }
 
    return result;
}
 
static odp_bool_t parse_custom_fields(const char *optarg, test_options_t *opts)
{
    char *tmp_str = strdup(optarg), *tmp;
    uint32_t num_fields = 0;
    char name[MAX_HDR_NAME_LEN + 1];
    uint32_t len;
    uint64_t value;
    int64_t diff;
    hdr_field_t *hdr;
    int ret;
 
    if (tmp_str == NULL)
        return false;
 
    tmp = strtok(tmp_str, TOKEN_DELIMITER);
 
    if (tmp == NULL) {
        free(tmp_str);
        return false;
    }
 
    opts->custom_l3.eth_type = strtoul(tmp, NULL, 16);
    tmp = strtok(NULL, TOKEN_DELIMITER);
 
    while (tmp) {
        if (num_fields == MAX_HDR_FIELDS) {
            ODPH_ERR("Invalid custom header, too many fields: %u\n", num_fields + 1);
            free(tmp_str);
            return false;
        }
 
        ret = sscanf(tmp, "%" S(MAX_HDR_NAME_LEN) "[^" FIELD_DELIMITER "]" FIELD_DELIMITER
                 "%u" FIELD_DELIMITER "%" PRIx64 FIELD_DELIMITER "%" PRIi64 "", name,
                 &len, &value, &diff);
 
        if (ret != 4) {
            ODPH_ERR("Invalid custom header, bad field format\n");
            free(tmp_str);
            return false;
        }
 
        if (len > MAX_HDR_VALUE_SZ) {
            ODPH_ERR("Invalid custom header, field length too long: %u\n", len);
            free(tmp_str);
            return false;
        }
 
        hdr = &opts->custom_l3.fields[num_fields];
        odph_strcpy(hdr->name, name, MAX_HDR_NAME_LEN + 1);
        hdr->value = value;
        hdr->diff = diff;
        hdr->len = len;
        opts->custom_l3.tot_len += len;
        ++num_fields;
        tmp = strtok(NULL, TOKEN_DELIMITER);
    }
 
    opts->num_custom_l3 = num_fields;
    free(tmp_str);
 
    return true;
}
 
static odp_bool_t parse_lso_fields(const char *optarg, test_options_t *opts)
{
    char *tmp_str = strdup(optarg), *tmp;
    uint8_t num_custom = 0;
    uint32_t proto, mod_op, offset, size;
    int ret;
    odp_bool_t ret_val = true;
 
    odp_lso_profile_param_init(&opts->lso.param);
 
    if (tmp_str == NULL) {
        ODPH_ERR("Error: strdup() failed\n");
        return false;
    }
 
    /* Format: proto,payload_offset,max_payload_len[,mod_op:offset:size,mod_op:offset...] */
 
    tmp = strtok(tmp_str, TOKEN_DELIMITER);
    if (tmp == NULL) {
        ODPH_ERR("Error: Unable to parse LSO protocol\n");
        ret_val = false;
        goto exit;
    }
 
    proto = strtoul(tmp, NULL, 0);
 
    switch (proto) {
    case 0:
        opts->lso.param.lso_proto = ODP_LSO_PROTO_IPV4;
        break;
    case 1:
        opts->lso.param.lso_proto = ODP_LSO_PROTO_TCP_IPV4;
        break;
    case 2:
        opts->lso.param.lso_proto = ODP_LSO_PROTO_CUSTOM;
        break;
    default:
        ODPH_ERR("Error: Invalid LSO protocol: %u\n", proto);
        ret_val = false;
        goto exit;
    }
 
    tmp = strtok(NULL, TOKEN_DELIMITER);
    if (tmp == NULL) {
        ODPH_ERR("Error: Unable to parse LSO payload offset\n");
        ret_val = false;
        goto exit;
    }
    opts->lso.payload_offset = strtoul(tmp, NULL, 0);
 
    tmp = strtok(NULL, TOKEN_DELIMITER);
    if (tmp == NULL) {
        ODPH_ERR("Error: Unable to parse LSO max payload length\n");
        ret_val = false;
        goto exit;
    }
    opts->lso.max_payload_len = strtoul(tmp, NULL, 0);
 
    tmp = strtok(NULL, TOKEN_DELIMITER);
    while (opts->lso.param.lso_proto == ODP_LSO_PROTO_CUSTOM && tmp) {
        if (num_custom == ODP_LSO_MAX_CUSTOM) {
            ODPH_ERR("Error: Too many custom LSO operations (max %u)\n",
                 ODP_LSO_MAX_CUSTOM);
            ret_val = false;
            goto exit;
        }
 
        ret = sscanf(tmp, "%" PRIu32 "" FIELD_DELIMITER
                 "%" PRIu32 "" FIELD_DELIMITER "%" PRIu32 "",
                 &mod_op, &offset, &size);
 
        if (ret != 3) {
            ODPH_ERR("Error: Invalid custom LSO operation, bad field format\n");
            ret_val = false;
            goto exit;
        }
 
        switch (mod_op) {
        case 0:
            opts->lso.param.custom.field[num_custom].mod_op = ODP_LSO_ADD_SEGMENT_NUM;
            break;
        case 1:
            opts->lso.param.custom.field[num_custom].mod_op = ODP_LSO_ADD_PAYLOAD_LEN;
            break;
        case 2:
            opts->lso.param.custom.field[num_custom].mod_op =
                ODP_LSO_ADD_PAYLOAD_OFFSET;
            break;
        case 3:
            opts->lso.param.custom.field[num_custom].mod_op = ODP_LSO_WRITE_BITS;
            break;
        default:
            ODPH_ERR("Error: Invalid custom LSO operation: %" PRIu32 "\n", mod_op);
            ret_val = false;
            goto exit;
        }
 
        opts->lso.param.custom.field[num_custom].offset = offset;
 
        if (mod_op == 3 && size != 1) {
            ODPH_ERR("Error: ODP_LSO_WRITE_BITS requires size of 1 byte"
                 " (got %" PRIu32 ")\n", size);
            ret_val = false;
            goto exit;
        } else if (mod_op != 3 && size != 1 && size != 2 && size != 4 && size != 8) {
            ODPH_ERR("Error: Invalid custom field size: %" PRIu32 "\n", size);
            ret_val = false;
            goto exit;
        }
 
        opts->lso.param.custom.field[num_custom].size = size;
 
        if (mod_op == 3) {
            /* Parse first/middle/last mask and value byte pairs */
            int32_t f_mask, f_val, m_mask, m_val, l_mask, l_val;
 
            ret = sscanf(tmp, "%*u" FIELD_DELIMITER "%*u" FIELD_DELIMITER "%*u"
                     FIELD_DELIMITER "%" SCNi32 FIELD_DELIMITER "%" SCNi32
                     FIELD_DELIMITER "%" SCNi32 FIELD_DELIMITER "%" SCNi32
                     FIELD_DELIMITER "%" SCNi32 FIELD_DELIMITER "%" SCNi32,
                     &f_mask, &f_val, &m_mask, &m_val, &l_mask, &l_val);
 
            if (ret != 6) {
                ODPH_ERR("Error: ODP_LSO_WRITE_BITS requires 6 mask/value bytes, "
                     "parsed: %d\n", ret);
                ret_val = false;
                goto exit;
            }
 
            if (f_mask < 0 || f_mask > UINT8_MAX || f_val < 0 || f_val > UINT8_MAX ||
                m_mask < 0 || m_mask > UINT8_MAX || m_val < 0 || m_val > UINT8_MAX ||
                l_mask < 0 || l_mask > UINT8_MAX || l_val < 0 || l_val > UINT8_MAX) {
                ODPH_ERR("Error: ODP_LSO_WRITE_BITS mask/value byte out of "
                     "range\n");
                ret_val = false;
                goto exit;
            }
 
            opts->lso.param.custom.field[num_custom].write_bits.first_seg.mask[0] =
                f_mask;
            opts->lso.param.custom.field[num_custom].write_bits.first_seg.value[0] =
                f_val;
            opts->lso.param.custom.field[num_custom].write_bits.middle_seg.mask[0] =
                m_mask;
            opts->lso.param.custom.field[num_custom].write_bits.middle_seg.value[0] =
                m_val;
            opts->lso.param.custom.field[num_custom].write_bits.last_seg.mask[0] =
                l_mask;
            opts->lso.param.custom.field[num_custom].write_bits.last_seg.value[0] =
                l_val;
        }
 
        num_custom++;
        tmp = strtok(NULL, TOKEN_DELIMITER);
    }
 
    if (opts->lso.param.lso_proto == ODP_LSO_PROTO_CUSTOM && num_custom == 0) {
        ODPH_ERR("Error: Custom LSO protocol requires at least one custom field\n");
        ret_val = false;
        goto exit;
    }
 
    opts->lso.param.custom.num_custom = num_custom;
    opts->lso.enabled = true;
 
exit:
    free(tmp_str);
 
    return ret_val;
}
 
static int init_bins(test_global_t *global)
{
    uint32_t i, bin_size;
    test_options_t *test_options = &global->test_options;
    uint32_t num_bins = test_options->rand_pkt_len_bins;
    uint32_t len_min = test_options->rand_pkt_len_min;
    uint32_t len_max = test_options->rand_pkt_len_max;
    uint32_t num_bytes = len_max - len_min + 1;
 
    if (len_max <= len_min) {
        ODPH_ERR("Error: Bad max packet length\n");
        return -1;
    }
 
    if (num_bins == 0)
        num_bins = num_bytes;
 
    if (num_bins == 1 || num_bins > MAX_BINS || num_bins > num_bytes) {
        ODPH_ERR("Error: Bad number of packet length bins: %u\n", num_bins);
        return -1;
    }
 
    bin_size = (len_max - len_min + 1) / (num_bins - 1);
 
    /* Min length is the first bin */
    for (i = 0; i < num_bins - 1; i++)
        global->len_bin[i] = len_min + (i * bin_size);
 
    /* Max length is the last bin */
    global->len_bin[i] = len_max;
    global->num_bins   = num_bins;
 
    return 0;
}
 
static int parse_options(int argc, char *argv[], test_global_t *global)
{
    int opt, i, len, str_len, port;
    unsigned long int count;
    uint32_t min_packets, num_tx_pkt, num_tx_alloc, pkt_len, req_len, val, bins;
    char *name, *str, *end;
    test_options_t *test_options = &global->test_options;
    int ret = 0;
    uint8_t default_eth_dst[6] = {0x02, 0x00, 0x00, 0xa0, 0xb0, 0xc0};
 
    static const struct option longopts[] = {
        {"interface",   required_argument, NULL, 'i'},
        {"eth_dst",     required_argument, NULL, 'e'},
        {"num_rx",      required_argument, NULL, 'r'},
        {"num_tx",      required_argument, NULL, 't'},
        {"lso",         required_argument, NULL, 'T'},
        {"num_pkt",     required_argument, NULL, 'n'},
        {"proto",       required_argument, NULL, 'N'},
        {"len",         required_argument, NULL, 'l'},
        {"len_range",   required_argument, NULL, 'L'},
        {"direct_rx",   required_argument, NULL, 'D'},
        {"tx_mode",     required_argument, NULL, 'm'},
        {"burst_size",  required_argument, NULL, 'b'},
        {"bursts",      required_argument, NULL, 'x'},
        {"gap",         required_argument, NULL, 'g'},
        {"vlan",        required_argument, NULL, 'v'},
        {"ipv4_src",    required_argument, NULL, 's'},
        {"ipv4_dst",    required_argument, NULL, 'd'},
        {"src_port",    required_argument, NULL, 'o'},
        {"dst_port",    required_argument, NULL, 'p'},
        {"promisc_mode", no_argument,      NULL, 'P'},
        {"latency",     no_argument,       NULL, 'a'},
        {"c_mode",      required_argument, NULL, 'c'},
        {"no_udp_checksum", no_argument,   NULL, 'C'},
        {"checksum_offload", no_argument,  NULL, 'X'},
        {"no_payload_fill", no_argument,   NULL, 'A'},
        {"mtu",         required_argument, NULL, 'M'},
        {"quit",        required_argument, NULL, 'q'},
        {"wait",        required_argument, NULL, 'w'},
        {"wait_start",  required_argument, NULL, 'W'},
        {"update_stat", required_argument, NULL, 'u'},
        {"custom_l3",   required_argument, NULL, 'U'},
        {"help",        no_argument,       NULL, 'h'},
        {NULL, 0, NULL, 0}
    };
 
    static const char *shortopts = "+i:e:r:t:T:n:N:l:L:D:m:M:b:x:g:v:s:d:o:"
                       "p:c:CXAq:u:w:W:PaU:h";
 
    test_options->num_pktio  = 0;
    test_options->num_rx     = 1;
    test_options->num_tx     = 1;
    test_options->num_pkt    = 1000;
    test_options->pkt_len    = 512;
    test_options->use_rand_pkt_len = 0;
    test_options->direct_rx  = 0;
    test_options->tx_mode    = TX_MODE_REF;
    test_options->burst_size = 8;
    test_options->bursts     = 1;
    test_options->gap_nsec   = 1000000;
    test_options->num_vlan   = 0;
    test_options->promisc_mode = 0;
    test_options->calc_latency = 0;
    test_options->calc_cs    = 1;
    test_options->cs_offload = 0;
    test_options->fill_pl    = 1;
    odph_strcpy(test_options->ipv4_src_s, "192.168.0.1",
            sizeof(test_options->ipv4_src_s));
    odph_strcpy(test_options->ipv4_dst_s, "192.168.0.2",
            sizeof(test_options->ipv4_dst_s));
    if (odph_ipv4_addr_parse(&test_options->ipv4_src, test_options->ipv4_src_s)) {
        ODPH_ERR("Address parse failed\n");
        return -1;
    }
    if (odph_ipv4_addr_parse(&test_options->ipv4_dst, test_options->ipv4_dst_s)) {
        ODPH_ERR("Address parse failed\n");
        return -1;
    }
    test_options->src_port = 10000;
    test_options->dst_port = 20000;
    test_options->c_mode.src_port = 0;
    test_options->c_mode.dst_port = 0;
    test_options->quit = 0;
    test_options->update_msec = 0;
    test_options->wait_sec = 0;
    test_options->wait_start_sec = 0;
    test_options->mtu = 0;
    test_options->l4_proto = L4_PROTO_UDP;
    test_options->lso.enabled = false;
 
    for (i = 0; i < MAX_PKTIOS; i++) {
        memcpy(global->pktio[i].eth_dst.addr, default_eth_dst, 6);
        global->pktio[i].eth_dst.addr[5] += i;
    }
 
    while (1) {
        opt = getopt_long(argc, argv, shortopts, longopts, NULL);
 
        if (opt == -1)
            break;
 
        switch (opt) {
        case 'i':
            i = 0;
            str = optarg;
            str_len = strlen(str);
 
            while (str_len > 0) {
                len = strcspn(str, ",");
                str_len -= len + 1;
 
                if (i == MAX_PKTIOS) {
                    ODPH_ERR("Error: Too many interfaces\n");
                    ret = -1;
                    break;
                }
 
                if (len > MAX_PKTIO_NAME) {
                    ODPH_ERR("Error: Too long interface name %s\n", str);
                    ret = -1;
                    break;
                }
 
                name = test_options->pktio_name[i];
                memcpy(name, str, len);
                str += len + 1;
                i++;
            }
 
            test_options->num_pktio = i;
 
            break;
        case 'e':
            i = 0;
            str = optarg;
            str_len = strlen(str);
 
            while (str_len > 0) {
                odph_ethaddr_t *dst = &global->pktio[i].eth_dst;
 
                len = strcspn(str, ",");
                str_len -= len + 1;
 
                if (i == MAX_PKTIOS) {
                    ODPH_ERR("Error: Too many MAC addresses\n");
                    ret = -1;
                    break;
                }
 
                if (odph_eth_addr_parse(dst, str)) {
                    ODPH_ERR("Error: Bad MAC address: %s\n", str);
                    ret = -1;
                    break;
                }
 
                str += len + 1;
                i++;
            }
            break;
        case 'o':
            port = atoi(optarg);
            if (port < 0 || port > UINT16_MAX) {
                ODPH_ERR("Error: Bad source port: %d\n", port);
                ret = -1;
                break;
            }
            test_options->src_port = port;
            break;
        case 'p':
            port = atoi(optarg);
            if (port < 0 || port > UINT16_MAX) {
                ODPH_ERR("Error: Bad destination port: %d\n", port);
                ret = -1;
                break;
            }
            test_options->dst_port = port;
            break;
        case 'P':
            test_options->promisc_mode = 1;
            break;
        case 'a':
            test_options->calc_latency = 1;
            break;
        case 'r':
            test_options->num_rx = atoi(optarg);
            break;
        case 't':
            test_options->num_tx = atoi(optarg);
            break;
        case 'T':
            if (!parse_lso_fields(optarg, test_options))
                ret = -1;
            break;
        case 'n':
            test_options->num_pkt = atoi(optarg);
            break;
        case 'N':
            test_options->l4_proto = atoi(optarg);
            break;
        case 'l':
            test_options->pkt_len = atoi(optarg);
            break;
        case 'L':
            pkt_len = strtoul(optarg, &end, 0);
            test_options->rand_pkt_len_min = pkt_len;
            end++;
            pkt_len = strtoul(end, &str, 0);
            test_options->rand_pkt_len_max = pkt_len;
            str++;
            val = strtoul(str, NULL, 0);
            test_options->rand_pkt_len_bins = val;
            test_options->use_rand_pkt_len = 1;
            break;
        case 'D':
            test_options->direct_rx = atoi(optarg);
            break;
        case 'm':
            test_options->tx_mode = atoi(optarg);
            break;
        case 'M':
            test_options->mtu = atoi(optarg);
            break;
        case 'b':
            test_options->burst_size = atoi(optarg);
            break;
        case 'x':
            test_options->bursts = atoi(optarg);
            break;
        case 'g':
            test_options->gap_nsec = atoll(optarg);
            break;
        case 'v':
            test_options->num_vlan = parse_vlan(optarg, global);
            if (test_options->num_vlan == 0) {
                ODPH_ERR("Error: Did not find any VLANs\n");
                ret = -1;
            }
            break;
        case 's':
            if (odph_ipv4_addr_parse(&test_options->ipv4_src,
                         optarg)) {
                ODPH_ERR("Error: Bad IPv4 source address: %s\n", optarg);
                ret = -1;
            }
            odph_strcpy(test_options->ipv4_src_s, optarg,
                    sizeof(test_options->ipv4_src_s));
            break;
        case 'd':
            if (odph_ipv4_addr_parse(&test_options->ipv4_dst,
                         optarg)) {
                ODPH_ERR("Error: Bad IPv4 destination address: %s\n", optarg);
                ret = -1;
            }
            odph_strcpy(test_options->ipv4_dst_s, optarg,
                    sizeof(test_options->ipv4_dst_s));
            break;
        case 'c':
            count = strtoul(optarg, &end, 0);
            test_options->c_mode.src_port = count;
 
            end++;
            count = strtoul(end, NULL, 0);
            test_options->c_mode.dst_port = count;
            break;
        case 'C':
            test_options->calc_cs = 0;
            break;
        case 'X':
            test_options->cs_offload = 1;
            break;
        case 'A':
            test_options->fill_pl = 0;
            break;
        case 'q':
            test_options->quit = atoll(optarg);
            break;
        case 'u':
            test_options->update_msec = atoll(optarg);
            break;
        case 'w':
            test_options->wait_sec = atoi(optarg);
            break;
        case 'W':
            test_options->wait_start_sec = atoi(optarg);
            break;
        case 'U':
            if (!parse_custom_fields(optarg, test_options))
                ret = -1;
 
            break;
        case 'h':
            /* fall through */
        default:
            print_usage();
            ret = -1;
            break;
        }
    }
 
    if (ret)
        return -1;
 
    if (test_options->num_pktio == 0) {
        ODPH_ERR("Error: At least one packet IO interface is needed.\n");
        ODPH_ERR("       Use -i <name> to specify interfaces.\n");
        return -1;
    }
 
    if (test_options->num_rx < 1 && test_options->num_tx < 1) {
        ODPH_ERR("Error: At least one rx or tx thread needed.\n");
        return -1;
    }
 
    test_options->num_cpu = test_options->num_rx + test_options->num_tx;
 
    if (test_options->num_cpu > MAX_WORKERS) {
        ODPH_ERR("Error: Too many worker threads\n");
        return -1;
    }
 
    num_tx_pkt = test_options->burst_size * test_options->bursts;
    global->num_tx_pkt = num_tx_pkt;
 
    if (num_tx_pkt == 0) {
        ODPH_ERR("Error: Bad number of tx packets: %u\n", num_tx_pkt);
        return -1;
    }
 
    if (test_options->use_rand_pkt_len) {
        if (init_bins(global))
            return -1;
    }
 
    bins = global->num_bins ? global->num_bins : 1;
    num_tx_alloc = num_tx_pkt * bins;
    if (num_tx_alloc > MAX_ALLOC_PACKETS) {
        ODPH_ERR("Error: Too many tx packets: %u\n", num_tx_alloc);
        return -1;
    }
 
    /* Pool needs to have enough packets for all TX side pre-allocated packets and
     * a burst per thread (for packet copies). RX side needs one burst per thread per pktio. */
    min_packets  = test_options->num_pktio * test_options->num_tx * num_tx_alloc;
    min_packets += test_options->num_tx * test_options->burst_size;
    min_packets += test_options->num_pktio * test_options->num_rx * test_options->burst_size;
 
    if (test_options->num_pkt < min_packets) {
        ODPH_ERR("Error: Pool needs to have at least %u packets\n", min_packets);
        return -1;
    }
 
    if (test_options->calc_latency && test_options->tx_mode == TX_MODE_REF) {
        ODPH_ERR("Error: Latency test is not supported with packet references (--tx_mode 1)\n");
        return -1;
    }
    if (test_options->calc_latency && (test_options->num_rx < 1 || test_options->num_tx < 1)) {
        ODPH_ERR("Error: Latency test requires both rx and tx threads\n");
        return -1;
    }
 
    if (test_options->gap_nsec) {
        double gap_hz = 1000000000.0 / test_options->gap_nsec;
 
        if (gap_hz > (double)odp_time_local_res()) {
            ODPH_ERR("\nWARNING: Burst gap exceeds time counter resolution "
                 "%" PRIu64 "\n\n", odp_time_local_res());
        }
    }
 
    if (global->num_bins) {
        if (num_tx_pkt > global->num_bins && num_tx_pkt % global->num_bins)
            ODPH_ERR("\nWARNING: Transmit packet count is not evenly divisible into packet length bins.\n\n");
 
        if (num_tx_pkt < global->num_bins)
            ODPH_ERR("\nWARNING: Not enough packets for every packet length bin.\n\n");
    }
 
    if (test_options->c_mode.dst_port && num_tx_pkt % test_options->c_mode.dst_port)
        ODPH_ERR("\nWARNING: Transmit packet count is not evenly divisible by destination port count.\n\n");
 
    if (test_options->c_mode.src_port && num_tx_pkt % test_options->c_mode.src_port)
        ODPH_ERR("\nWARNING: Transmit packet count is not evenly divisible by source port count.\n\n");
 
    if (test_options->l4_proto != L4_PROTO_TCP && test_options->l4_proto != L4_PROTO_UDP &&
        test_options->l4_proto != L4_PROTO_NONE) {
        ODPH_ERR("Error: Invalid L4 protocol: %" PRIu8 "\n", test_options->l4_proto);
        return -1;
    }
    if (test_options->l4_proto == L4_PROTO_TCP && test_options->tx_mode != TX_MODE_COPY) {
        ODPH_ERR("Error: TCP protocol supported only with copy transmit mode\n");
        return -1;
    }
 
    test_options->eth_type = test_options->num_custom_l3 ?
        test_options->custom_l3.eth_type : ODPH_ETHTYPE_IPV4;
    test_options->l3_len = test_options->num_custom_l3 ?
        test_options->custom_l3.tot_len : ODPH_IPV4HDR_LEN;
    test_options->hdr_len = ODPH_ETHHDR_LEN + (test_options->num_vlan * ODPH_VLANHDR_LEN) +
                test_options->l3_len;
 
    if (test_options->l4_proto != L4_PROTO_NONE)
        test_options->hdr_len += test_options->l4_proto == L4_PROTO_UDP ?
                        ODPH_UDPHDR_LEN : ODPH_TCPHDR_LEN;
 
    pkt_len = test_options->use_rand_pkt_len ?
            test_options->rand_pkt_len_min : test_options->pkt_len;
 
    req_len = test_options->hdr_len;
    if (test_options->calc_latency)
        req_len += sizeof(ts_data_t);
 
    if (test_options->num_custom_l3 && test_options->cs_offload) {
        ODPH_ERR("Error: Checksum offloading supported only with IP\n");
        return -1;
    }
 
    /* Keep '--no_udp_checksum' only if UDP is the L4 protocol */
    if (test_options->l4_proto != L4_PROTO_UDP)
        test_options->calc_cs = 1;
 
    if (test_options->cs_offload)
        test_options->calc_cs = 0;
 
    if (req_len > pkt_len) {
        ODPH_ERR("Error: Headers do not fit into packet length of %" PRIu32 " bytes "
             "(min %" PRIu32 " bytes required)\n", pkt_len, req_len);
        return -1;
    }
 
    if (test_options->lso.enabled) {
        if (test_options->tx_mode != TX_MODE_COPY) {
            ODPH_ERR("Error: LSO supported only with copy transmit mode\n");
            return -1;
        }
 
        if (test_options->num_custom_l3 &&
            test_options->lso.param.lso_proto != ODP_LSO_PROTO_CUSTOM) {
            ODPH_ERR("Error: LSO and L3 protocol mismatch\n");
            return -1;
        }
 
        if (test_options->l4_proto != L4_PROTO_TCP &&
            test_options->lso.param.lso_proto == ODP_LSO_PROTO_TCP_IPV4) {
            ODPH_ERR("Error: LSO and L4 protocol mismatch\n");
            return -1;
        }
    }
    return 0;
}
 
static int set_num_cpu(test_global_t *global)
{
    int ret;
    test_options_t *test_options = &global->test_options;
    int num_cpu = test_options->num_cpu;
 
    ret = odp_cpumask_default_worker(&global->cpumask, num_cpu);
 
    if (ret != num_cpu) {
        int cpu;
 
        /* Normally we want to use only worker threads */
        if (ret > 1) {
            ODPH_ERR("Error: Too many workers. Maximum supported %i.\n", ret);
            return -1;
        }
 
        /* When number of workers is very limited (e.g. ODP project CI),
         * we try to use any CPUs available. */
        ret = odp_cpumask_all_available(&global->cpumask);
        if (ret < num_cpu) {
            ODPH_ERR("Error: Not enough CPUs. Maximum supported %i.\n", ret);
            return -1;
        }
 
        /* Remove extra CPUs from the mask */
        cpu = odp_cpumask_first(&global->cpumask);
        while (ret > num_cpu) {
            odp_cpumask_clr(&global->cpumask, cpu);
            cpu = odp_cpumask_first(&global->cpumask);
            ret--;
        }
    }
 
    odp_barrier_init(&global->barrier, num_cpu + 1);
 
    return 0;
}
 
static int check_lso_capa(char *name, odp_pktio_capability_t *pktio_capa,
              test_options_t *opt, odp_pool_t pool)
{
    odp_packet_t pkt;
    uint32_t max_segments;
    uint32_t pkt_payload;
    const uint32_t max_pkt_len = opt->use_rand_pkt_len ?
                opt->rand_pkt_len_max : opt->pkt_len;
 
    if (pktio_capa->lso.max_profiles < opt->num_pktio ||
        pktio_capa->lso.max_profiles_per_pktio == 0) {
        ODPH_ERR("Error (%s): Not enough LSO profiles (max %" PRIu32 ")\n", name,
             ODPH_MIN(pktio_capa->lso.max_profiles,
                  pktio_capa->lso.max_profiles_per_pktio));
        return -1;
    }
 
    if (opt->lso.param.lso_proto == ODP_LSO_PROTO_TCP_IPV4 && !pktio_capa->lso.proto.tcp_ipv4) {
        ODPH_ERR("Error (%s): ODP_LSO_PROTO_TCP_IPV4 not supported\n", name);
        return -1;
    }
    if (opt->lso.param.lso_proto == ODP_LSO_PROTO_IPV4 && !pktio_capa->lso.proto.ipv4) {
        ODPH_ERR("Error (%s): ODP_LSO_PROTO_IPV4 not supported\n", name);
        return -1;
    }
    if (opt->lso.param.lso_proto == ODP_LSO_PROTO_CUSTOM && !pktio_capa->lso.proto.custom) {
        ODPH_ERR("Error (%s): ODP_LSO_PROTO_CUSTOM not supported\n", name);
        return -1;
    }
 
    /* Check number of segments in a max length packet */
    pkt = odp_packet_alloc(pool, max_pkt_len);
    if (pkt == ODP_PACKET_INVALID) {
        ODPH_ERR("Error (%s): Allocating test packet failed\n", name);
        return -1;
    }
 
    max_segments = odp_packet_num_segs(pkt);
    odp_packet_free(pkt);
 
    if (max_segments > pktio_capa->lso.max_packet_segments) {
        ODPH_ERR("Error (%s): Max LSO packet segments: %" PRIu32 "\n", name,
             pktio_capa->lso.max_packet_segments);
        return -1;
    }
 
    /* Check max number of LSO segments */
    pkt_payload = max_pkt_len - opt->lso.payload_offset;
    max_segments = (pkt_payload + opt->lso.max_payload_len - 1) /
                opt->lso.max_payload_len;
    if (max_segments > pktio_capa->lso.max_segments) {
        ODPH_ERR("Error (%s): Max LSO segments: %" PRIu32 "\n", name,
             pktio_capa->lso.max_segments);
        return -1;
    }
 
    if (opt->lso.max_payload_len > pktio_capa->lso.max_payload_len) {
        ODPH_ERR("Error (%s): Max LSO payload len: %" PRIu32 "\n", name,
             pktio_capa->lso.max_payload_len);
        return -1;
    }
 
    if (opt->lso.payload_offset > pktio_capa->lso.max_payload_offset) {
        ODPH_ERR("Error (%s): Max LSO payload offset: %" PRIu32 "\n", name,
             pktio_capa->lso.max_payload_len);
        return -1;
    }
 
    if (opt->lso.param.lso_proto == ODP_LSO_PROTO_CUSTOM) {
        if (opt->lso.param.custom.num_custom > pktio_capa->lso.max_num_custom) {
            ODPH_ERR("Error (%s): Max LSO custom fields: %" PRIu32 "\n", name,
                 pktio_capa->lso.max_num_custom);
            return -1;
        }
 
        for (uint8_t i = 0; i < opt->lso.param.custom.num_custom; i++) {
            if (opt->lso.param.custom.field[i].mod_op == ODP_LSO_ADD_SEGMENT_NUM &&
                !pktio_capa->lso.mod_op.add_segment_num) {
                ODPH_ERR("Error (%s): ODP_LSO_ADD_SEGMENT_NUM not supported\n",
                     name);
                return -1;
            }
            if (opt->lso.param.custom.field[i].mod_op == ODP_LSO_ADD_PAYLOAD_LEN &&
                !pktio_capa->lso.mod_op.add_payload_len) {
                ODPH_ERR("Error (%s): ODP_LSO_ADD_PAYLOAD_LEN not supported\n",
                     name);
                return -1;
            }
            if (opt->lso.param.custom.field[i].mod_op == ODP_LSO_ADD_PAYLOAD_OFFSET &&
                !pktio_capa->lso.mod_op.add_payload_offset) {
                ODPH_ERR("Error (%s): ODP_LSO_ADD_PAYLOAD_OFFSET not supported\n",
                     name);
                return -1;
            }
            if (opt->lso.param.custom.field[i].mod_op == ODP_LSO_WRITE_BITS &&
                !pktio_capa->lso.mod_op.write_bits) {
                ODPH_ERR("Error (%s): ODP_LSO_WRITE_BITS not supported\n",
                     name);
                return -1;
            }
        }
    }
 
    return 0;
}
 
static int create_packet_pool(test_global_t *global)
{
    test_options_t *test_options = &global->test_options;
    uint32_t num_pkt = test_options->num_pkt;
    uint32_t pkt_len = test_options->use_rand_pkt_len ? test_options->rand_pkt_len_max :
                                test_options->pkt_len;
    uint32_t seg_len;
    odp_pool_capability_t pool_capa;
    odp_pool_param_t  pool_param;
 
    global->pool = ODP_POOL_INVALID;
 
    if (odp_pool_capability(&pool_capa)) {
        ODPH_ERR("Error: Pool capability failed.\n");
        return -1;
    }
 
    if (pool_capa.pkt.max_num && num_pkt > pool_capa.pkt.max_num) {
        ODPH_ERR("Error: Too many packets. Max %u supported.\n", pool_capa.pkt.max_num);
        return -1;
    }
 
    if (pool_capa.pkt.max_len && pkt_len > pool_capa.pkt.max_len) {
        ODPH_ERR("Error: Too large packets. Max %u supported length.\n",
             pool_capa.pkt.max_len);
        return -1;
    }
 
    seg_len = test_options->hdr_len;
    if (pool_capa.pkt.max_seg_len && seg_len > pool_capa.pkt.max_seg_len) {
        ODPH_ERR("Error: Max segment length is too small %u\n", pool_capa.pkt.max_seg_len);
        return -1;
    }
 
    odp_pool_param_init(&pool_param);
    pool_param.type        = ODP_POOL_PACKET;
    pool_param.pkt.num     = num_pkt;
    pool_param.pkt.len     = pkt_len;
    pool_param.pkt.seg_len = seg_len;
 
    global->pool = odp_pool_create("packet gen pool", &pool_param);
 
    if (global->pool == ODP_POOL_INVALID) {
        ODPH_ERR("Error: Pool create failed.\n");
        return -1;
    }
    return 0;
}
 
static int destroy_packet_pool(test_global_t *global)
{
    if (global->pool != ODP_POOL_INVALID && odp_pool_destroy(global->pool)) {
        ODPH_ERR("Error: Pool destroy failed.\n");
        return -1;
    }
    return 0;
}
 
static int open_pktios(test_global_t *global)
{
    odp_pktio_capability_t pktio_capa;
    odp_pktio_param_t pktio_param;
    odp_pktio_t pktio;
    odp_pktio_config_t pktio_config;
    odp_pktin_queue_param_t pktin_param;
    odp_pktout_queue_param_t pktout_param;
    char *name;
    uint32_t i;
    int j, pktio_idx;
    test_options_t *test_options = &global->test_options;
    int num_rx = test_options->num_rx;
    int num_tx = test_options->num_tx;
    uint32_t num_pktio = test_options->num_pktio;
    uint32_t num_pkt = test_options->num_pkt;
    uint32_t pkt_len = test_options->use_rand_pkt_len ?
                test_options->rand_pkt_len_max : test_options->pkt_len;
 
    printf("\nODP packet generator\n");
    printf("  quit test after:   %" PRIu64 " rounds\n",
           test_options->quit);
    printf("  num rx threads:    %i\n", num_rx);
    printf("  num tx threads:    %i\n", num_tx);
    printf("  num packets:       %u\n", num_pkt);
    if (test_options->use_rand_pkt_len)
        printf("  packet length:     %u-%u bytes, %u bins\n",
               test_options->rand_pkt_len_min,
               test_options->rand_pkt_len_max,
               test_options->rand_pkt_len_bins);
    else
        printf("  packet length:     %u bytes\n", pkt_len);
    printf("  MTU:               ");
    if (test_options->mtu)
        printf("%u bytes\n", test_options->mtu);
    else
        printf("interface default\n");
    printf("  packet input mode: %s\n", test_options->direct_rx ? "direct" : "scheduler");
    printf("  promisc mode:      %s\n", test_options->promisc_mode ? "enabled" : "disabled");
    printf("  transmit mode:     %i\n", test_options->tx_mode);
    printf("  measure latency:   %s\n", test_options->calc_latency ? "enabled" : "disabled");
    printf("  UDP SW checksum:   %s\n", test_options->calc_cs ? "enabled" : "disabled");
    printf("  Checksum offload:  %s\n", test_options->cs_offload ? "enabled" : "disabled");
    printf("  payload filling:   %s\n", test_options->fill_pl ? "enabled" : "disabled");
    printf("  tx burst size:     %u\n", test_options->burst_size);
    printf("  tx bursts:         %u\n", test_options->bursts);
    printf("  tx burst gap:      %" PRIu64 " nsec\n",
           test_options->gap_nsec);
 
    if (test_options->lso.enabled) {
        printf("  LSO protocol:      %s\n",
               test_options->lso.param.lso_proto == ODP_LSO_PROTO_IPV4 ?
               "ODP_LSO_PROTO_IPV4" :
               test_options->lso.param.lso_proto == ODP_LSO_PROTO_TCP_IPV4 ?
               "ODP_LSO_PROTO_TCP_IPV4" : "ODP_LSO_PROTO_CUSTOM");
        printf("    max payload offset: %" PRIu32 " bytes\n",
               test_options->lso.payload_offset);
        printf("    max payload len:    %" PRIu32 " bytes\n",
               test_options->lso.max_payload_len);
 
        for (i = 0; i < test_options->lso.param.custom.num_custom; i++) {
            const odp_lso_modify_t mod_op =
                test_options->lso.param.custom.field[i].mod_op;
            const char *mod_op_str;
 
            switch (mod_op) {
            case ODP_LSO_ADD_SEGMENT_NUM:
                mod_op_str = "ODP_LSO_ADD_SEGMENT_NUM";
                break;
            case ODP_LSO_ADD_PAYLOAD_LEN:
                mod_op_str = "ODP_LSO_ADD_PAYLOAD_LEN";
                break;
            case ODP_LSO_ADD_PAYLOAD_OFFSET:
                mod_op_str = "ODP_LSO_ADD_PAYLOAD_OFFSET";
                break;
            case ODP_LSO_WRITE_BITS:
                mod_op_str = "ODP_LSO_WRITE_BITS";
                break;
            default:
                mod_op_str = "UNKNOWN";
                break;
            }
 
            printf("    Custom operation %" PRIu32 ": %s\n", i + 1, mod_op_str);
            printf("      offset:           %" PRIu32 " bytes\n",
                   test_options->lso.param.custom.field[i].offset);
            printf("      size:             %" PRIu32 " bytes\n",
                   test_options->lso.param.custom.field[i].size);
 
            if (mod_op == ODP_LSO_WRITE_BITS) {
                const odp_lso_write_bits_t *fs =
                     &test_options->lso.param.custom.field[i].write_bits.first_seg;
                const odp_lso_write_bits_t *ms =
                    &test_options->lso.param.custom.field[i].write_bits.middle_seg;
                const odp_lso_write_bits_t *ls =
                      &test_options->lso.param.custom.field[i].write_bits.last_seg;
 
                printf("      first seg:        0x%02x/0x%02x\n",
                       fs->value[0], fs->mask[0]);
                printf("      middle seg:       0x%02x/0x%02x\n",
                       ms->value[0], ms->mask[0]);
                printf("      last seg:         0x%02x/0x%02x\n",
                       ls->value[0], ls->mask[0]);
            }
        }
    }
 
    printf("  clock resolution:  %" PRIu64 " Hz\n", odp_time_local_res());
    for (i = 0; i < test_options->num_vlan; i++) {
        printf("  VLAN[%i]:           %x:%x\n", i,
               test_options->vlan[i].tpid, test_options->vlan[i].tci);
    }
 
    printf("  L3 protocol:       ");
 
    if (test_options->num_custom_l3) {
        printf("custom\n"
               "    ether type:   %x\n"
               "    total length: %u\n"
               "    fields:\n", test_options->custom_l3.eth_type,
               test_options->custom_l3.tot_len);
 
        for (i = 0; i < test_options->num_custom_l3; i++) {
            printf("      name:   %s\n"
                   "      length: %u\n"
                   "      value:  %" PRIx64 "\n"
                   "      diff:   %" PRIi64 "\n\n",
                   test_options->custom_l3.fields[i].name,
                   test_options->custom_l3.fields[i].len,
                   test_options->custom_l3.fields[i].value,
                   test_options->custom_l3.fields[i].diff);
        }
    } else {
        printf("IPv4\n");
        printf("    IPv4 source:      %s\n", test_options->ipv4_src_s);
        printf("    IPv4 destination: %s\n\n", test_options->ipv4_dst_s);
    }
 
    printf("  L4 protocol:       %s\n",
           test_options->l4_proto == L4_PROTO_UDP ?
            "UDP" : test_options->l4_proto == L4_PROTO_TCP ? "TCP" : "none");
    printf("  source port:       %u\n", test_options->src_port);
    printf("  destination port:  %u\n", test_options->dst_port);
    printf("  src port count:    %u\n", test_options->c_mode.src_port);
    printf("  dst port count:    %u\n", test_options->c_mode.dst_port);
    printf("  num pktio:         %u\n", num_pktio);
 
    printf("  interfaces names:  ");
    for (i = 0; i < num_pktio; i++) {
        if (i > 0)
            printf("                      ");
        printf("%s\n", test_options->pktio_name[i]);
    }
 
    printf("  destination MACs:  ");
    for (i = 0; i < num_pktio; i++) {
        uint8_t *eth_dst = global->pktio[i].eth_dst.addr;
 
        if (i > 0)
            printf("                      ");
        printf("%02x:%02x:%02x:%02x:%02x:%02x\n",
               eth_dst[0], eth_dst[1], eth_dst[2],
               eth_dst[3], eth_dst[4], eth_dst[5]);
    }
    printf("\n");
 
    odp_pktio_param_init(&pktio_param);
 
    pktio_param.in_mode = num_rx ? (test_options->direct_rx ?
                    ODP_PKTIN_MODE_DIRECT : ODP_PKTIN_MODE_SCHED) :
                    ODP_PKTIN_MODE_DISABLED;
 
    pktio_param.out_mode = num_tx ? ODP_PKTOUT_MODE_DIRECT : ODP_PKTOUT_MODE_DISABLED;
 
    for (i = 0; i < num_pktio; i++) {
        global->pktio[i].pktio = ODP_PKTIO_INVALID;
        global->pktio[i].lso_profile = ODP_LSO_PROFILE_INVALID;
    }
 
    /* Open and configure interfaces */
    for (i = 0; i < num_pktio; i++) {
        name  = test_options->pktio_name[i];
        pktio = odp_pktio_open(name, global->pool, &pktio_param);
 
        if (pktio == ODP_PKTIO_INVALID) {
            ODPH_ERR("Error (%s): Pktio open failed.\n", name);
            return -1;
        }
 
        global->pktio[i].pktio = pktio;
 
        odp_pktio_print(pktio);
 
        pktio_idx = odp_pktio_index(pktio);
        if (pktio_idx < 0) {
            ODPH_ERR("Error (%s): Reading pktio index failed: %i\n", name, pktio_idx);
            return -1;
        }
        global->if_from_pktio_idx[pktio_idx] = i;
 
        if (odp_pktio_capability(pktio, &pktio_capa)) {
            ODPH_ERR("Error (%s): Pktio capability failed.\n", name);
            return -1;
        }
 
        if (num_rx > (int)pktio_capa.max_input_queues) {
            ODPH_ERR("Error (%s): Too many RX threads. Interface supports max %u input queues.\n",
                 name, pktio_capa.max_input_queues);
            return -1;
        }
 
        if (num_tx > (int)pktio_capa.max_output_queues) {
            ODPH_ERR("Error (%s): Too many TX threads. Interface supports max %u output queues.\n",
                 name, pktio_capa.max_output_queues);
            return -1;
        }
 
        if (odp_pktio_mac_addr(pktio,
                       &global->pktio[i].eth_src.addr,
                       ODPH_ETHADDR_LEN) != ODPH_ETHADDR_LEN) {
            ODPH_ERR("Error (%s): MAC address read failed.\n", name);
            return -1;
        }
 
        if (test_options->mtu) {
            uint32_t maxlen_input = pktio_capa.maxlen.max_input ? test_options->mtu : 0;
            uint32_t maxlen_output = pktio_capa.maxlen.max_output ?
                            test_options->mtu : 0;
 
            if (!pktio_capa.set_op.op.maxlen) {
                ODPH_ERR("Error (%s): modifying interface MTU not supported.\n",
                     name);
                return -1;
            }
 
            if (maxlen_input &&
                (maxlen_input < pktio_capa.maxlen.min_input ||
                 maxlen_input > pktio_capa.maxlen.max_input)) {
                ODPH_ERR("Error (%s): unsupported MTU value %" PRIu32 " "
                     "(min %" PRIu32 ", max %" PRIu32 ")\n", name, maxlen_input,
                     pktio_capa.maxlen.min_input, pktio_capa.maxlen.max_input);
                return -1;
            }
            if (maxlen_output &&
                (maxlen_output < pktio_capa.maxlen.min_output ||
                 maxlen_output > pktio_capa.maxlen.max_output)) {
                ODPH_ERR("Error (%s): unsupported MTU value %" PRIu32 " "
                     "(min %" PRIu32 ", max %" PRIu32 ")\n", name,
                     maxlen_output, pktio_capa.maxlen.min_output,
                     pktio_capa.maxlen.max_output);
                return -1;
            }
 
            if (odp_pktio_maxlen_set(pktio, maxlen_input, maxlen_output)) {
                ODPH_ERR("Error (%s): setting MTU failed\n", name);
                return -1;
            }
        }
 
        if (test_options->tx_mode == TX_MODE_DF && pktio_capa.free_ctrl.dont_free == 0) {
            ODPH_ERR("Error (%s): Don't free mode not supported\n", name);
            return -1;
        }
        if (test_options->tx_mode == TX_MODE_REF && !pktio_capa.packet_ref.static_ref) {
            ODPH_ERR("Error (%s): Static-reference TX mode not supported\n", name);
            return -1;
        }
 
        odp_pktio_config_init(&pktio_config);
 
        if (test_options->cs_offload) {
            if (test_options->l4_proto == L4_PROTO_UDP) {
                if (pktio_capa.config.pktin.bit.udp_chksum &&
                    pktio_capa.config.pktin.bit.drop_udp_err) {
                    pktio_config.pktin.bit.udp_chksum = 1;
                    pktio_config.pktin.bit.drop_udp_err = 1;
                } else {
                    ODPH_ERR("Warning (%s): UDP checksum offload at RX not "
                         "properly supported, leaving it disabled.\n",
                         name);
                }
 
                if (!pktio_capa.config.pktout.bit.udp_chksum) {
                    ODPH_ERR("Error (%s): UDP checksum offload at TX not "
                         "properly supported.\n", name);
                    return -1;
                }
 
                pktio_config.pktout.bit.udp_chksum_ena = 1;
                pktio_config.pktout.bit.udp_chksum = 1;
            }
 
            if (test_options->l4_proto == L4_PROTO_TCP) {
                if (pktio_capa.config.pktin.bit.tcp_chksum &&
                    pktio_capa.config.pktin.bit.drop_tcp_err) {
                    pktio_config.pktin.bit.tcp_chksum = 1;
                    pktio_config.pktin.bit.drop_tcp_err = 1;
                } else {
                    ODPH_ERR("Warning (%s): TCP checksum offload at RX not "
                         "properly supported, leaving it disabled.\n",
                         name);
                }
 
                if (!pktio_capa.config.pktout.bit.tcp_chksum) {
                    ODPH_ERR("Error (%s): TCP checksum offload at TX not "
                         "properly supported.\n", name);
                    return -1;
                }
 
                pktio_config.pktout.bit.tcp_chksum_ena = 1;
                pktio_config.pktout.bit.tcp_chksum = 1;
            }
        }
 
        pktio_config.parser.layer = ODP_PROTO_LAYER_ALL;
 
        if (test_options->lso.enabled) {
            if (check_lso_capa(name, &pktio_capa, test_options, global->pool))
                return -1;
 
            pktio_config.enable_lso = true;
        }
 
        if (odp_pktio_config(pktio, &pktio_config)) {
            ODPH_ERR("Error (%s): Pktio config failed.\n", name);
            return -1;
        }
 
        if (test_options->lso.enabled) {
            const odp_lso_profile_param_t *param = &test_options->lso.param;
 
            global->pktio[i].lso_profile = odp_lso_profile_create(pktio, param);
            if (global->pktio[i].lso_profile == ODP_LSO_PROFILE_INVALID) {
                ODPH_ERR("Error (%s): LSO profile create failed.\n", name);
                return -1;
            }
        }
 
        if (test_options->promisc_mode && odp_pktio_promisc_mode(pktio) != 1) {
            if (!pktio_capa.set_op.op.promisc_mode) {
                ODPH_ERR("Error (%s): promisc mode set not supported\n", name);
                return -1;
            }
 
            if (odp_pktio_promisc_mode_set(pktio, true)) {
                ODPH_ERR("Error (%s): promisc mode enable failed\n", name);
                return -1;
            }
        }
 
        odp_pktin_queue_param_init(&pktin_param);
 
        if (test_options->direct_rx) {
            pktin_param.op_mode = ODP_PKTIO_OP_MT_UNSAFE;
        } else {
            pktin_param.queue_param.sched.prio  = odp_schedule_default_prio();
            pktin_param.queue_param.sched.sync  = ODP_SCHED_SYNC_PARALLEL;
            pktin_param.queue_param.sched.group = ODP_SCHED_GROUP_ALL;
        }
 
        pktin_param.num_queues = num_rx;
 
        if (num_rx > 1) {
            pktin_param.hash_enable = 1;
            pktin_param.hash_proto.proto.ipv4_udp = 1;
        }
 
        if (odp_pktin_queue_config(pktio, &pktin_param)) {
            ODPH_ERR("Error (%s): Pktin config failed.\n", name);
            return -1;
        }
 
        odp_pktout_queue_param_init(&pktout_param);
        pktout_param.op_mode = ODP_PKTIO_OP_MT_UNSAFE;
        pktout_param.num_queues = num_tx;
 
        if (odp_pktout_queue_config(pktio, &pktout_param)) {
            ODPH_ERR("Error (%s): Pktout config failed.\n", name);
            return -1;
        }
 
        if (num_tx > 0) {
            odp_pktout_queue_t pktout[MAX_THREADS];
 
            if (odp_pktout_queue(pktio, pktout, num_tx) != num_tx) {
                ODPH_ERR("Error (%s): Pktout queue request failed.\n", name);
                return -1;
            }
 
            for (j = 0; j < num_tx; j++)
                global->pktio[i].pktout[j] = pktout[j];
        }
 
        if (num_rx > 0 && test_options->direct_rx) {
            odp_pktin_queue_t pktin[MAX_THREADS];
 
            if (odp_pktin_queue(pktio, pktin, num_rx) != num_rx) {
                ODPH_ERR("Error (%s): Pktin queue request failed.\n", name);
                return -1;
            }
 
            for (j = 0; j < num_rx; j++)
                global->pktio[i].pktin[j] = pktin[j];
        }
    }
 
    return 0;
}
 
static int start_pktios(test_global_t *global)
{
    uint32_t i;
    test_options_t *test_options = &global->test_options;
    uint32_t num_pktio = test_options->num_pktio;
    odp_pktio_t pktios[MAX_PKTIOS];
    const char *names[MAX_PKTIOS];
 
    for (i = 0; i < num_pktio; i++) {
        if (odp_pktio_start(global->pktio[i].pktio)) {
            ODPH_ERR("Error (%s): Pktio start failed.\n", test_options->pktio_name[i]);
 
            return -1;
        }
 
        global->pktio[i].started = 1;
        pktios[i] = global->pktio[i].pktio;
        names[i] = test_options->pktio_name[i];
    }
 
    /* Wait until all links are up */
    if (test_options->wait_sec &&
        pktio_common_check_link_status_wait(pktios, names, num_pktio,
                        test_options->wait_sec) == -1)
        return -1;
 
    pktio_common_print_link_info_multi(pktios, names, num_pktio);
 
    if (test_options->wait_start_sec)
        odp_time_wait_ns(test_options->wait_start_sec * ODP_TIME_SEC_IN_NS);
 
    return 0;
}
 
static int stop_pktios(test_global_t *global)
{
    uint32_t i;
    odp_pktio_t pktio;
    int ret = 0;
    test_options_t *test_options = &global->test_options;
    uint32_t num_pktio = test_options->num_pktio;
 
    for (i = 0; i < num_pktio; i++) {
        pktio = global->pktio[i].pktio;
 
        if (pktio == ODP_PKTIO_INVALID || global->pktio[i].started == 0)
            continue;
 
        if (odp_pktio_stop(pktio)) {
            ODPH_ERR("Error (%s): Pktio stop failed.\n", test_options->pktio_name[i]);
            ret = -1;
        }
    }
 
    return ret;
}
 
static int close_pktios(test_global_t *global)
{
    uint32_t i;
    odp_pktio_t pktio;
    test_options_t *test_options = &global->test_options;
    uint32_t num_pktio = test_options->num_pktio;
    int ret = 0;
 
    for (i = 0; i < num_pktio; i++) {
        pktio = global->pktio[i].pktio;
 
        if (pktio == ODP_PKTIO_INVALID)
            continue;
 
        if (global->pktio[i].lso_profile != ODP_LSO_PROFILE_INVALID &&
            odp_lso_profile_destroy(global->pktio[i].lso_profile)) {
            ODPH_ERR("Error (%s): LSO profile destroy failed.\n",
                 test_options->pktio_name[i]);
            ret = -1;
        }
 
        if (odp_pktio_close(pktio)) {
            ODPH_ERR("Error (%s): Pktio close failed.\n", test_options->pktio_name[i]);
            ret = -1;
        }
    }
 
    return ret;
}
 
static inline void get_timestamp(odp_packet_t pkt, uint32_t ts_off, rx_lat_data_t *lat_data,
                 odp_time_t rx_ts)
{
    ts_data_t ts_data;
    uint64_t nsec;
 
    if (odp_unlikely(odp_packet_copy_to_mem(pkt, ts_off, sizeof(ts_data), &ts_data) < 0 ||
             ts_data.magic != TS_MAGIC))
        return;
 
    nsec = odp_time_diff_ns(rx_ts, ts_data.tx_ts);
 
    if (nsec < lat_data->min)
        lat_data->min = nsec;
 
    if (nsec > lat_data->max)
        lat_data->max = nsec;
 
    lat_data->nsec += nsec;
    lat_data->packets++;
}
 
static int rx_thread(void *arg)
{
    int i, thr, num;
    uint32_t exit_test;
    uint64_t bytes;
    odp_time_t t1, t2, exit_time;
    thread_arg_t *thread_arg = arg;
    test_global_t *global = thread_arg->global;
    int direct_rx = global->test_options.direct_rx;
    int periodic_stat = global->test_options.update_msec ? 1 : 0;
    uint64_t rx_timeouts = 0;
    uint64_t rx_packets = 0;
    uint64_t rx_bytes = 0;
    uint64_t nsec = 0;
    int ret = 0;
    int clock_started = 0;
    int exit_timer_started = 0;
    int paused = 0;
    const int max_num = 32;
    int pktin = 0;
    int num_pktio = global->test_options.num_pktio;
    odp_pktin_queue_t pktin_queue[num_pktio];
    odp_packet_t pkt[max_num];
    uint32_t ts_off = global->test_options.calc_latency ? global->test_options.hdr_len : 0;
    odp_time_t rx_ts = ODP_TIME_NULL;
    rx_lat_data_t rx_lat_data = { .nsec = 0, .min = UINT64_MAX, .max = 0, .packets = 0 };
 
    thr = odp_thread_id();
    global->stat[thr].thread_type = RX_THREAD;
 
    if (direct_rx) {
        for (i = 0; i < num_pktio; i++)
            pktin_queue[i] = thread_arg->pktin[i];
    }
 
    /* Start all workers at the same time */
    odp_barrier_wait(&global->barrier);
 
    while (1) {
        if (direct_rx) {
            num = odp_pktin_recv(pktin_queue[pktin], pkt, max_num);
 
            if (odp_unlikely(num < 0)) {
                ODPH_ERR("pktin (%i) recv failed: %i\n", pktin, num);
                ret = -1;
                num = 0;
                break;
            }
 
            pktin++;
            if (pktin >= num_pktio)
                pktin = 0;
        } else {
            odp_event_t ev[max_num];
 
            num = odp_schedule_multi_no_wait(NULL, ev, max_num);
 
            if (num)
                odp_packet_from_event_multi(pkt, ev, num);
        }
 
        if (ts_off && num)
            rx_ts = odp_time_global_strict();
 
        exit_test = odp_atomic_load_u32(&global->exit_test);
        if (exit_test) {
            /* Wait 0.1 seconds for possible in flight packets sent by the tx threads */
            if (exit_timer_started == 0) {
                exit_time = odp_time_local();
                t2 = exit_time;
                exit_timer_started = 1;
            } else if (odp_time_diff_ns(odp_time_local(), exit_time) >
                   ODP_TIME_SEC_IN_NS / 10) {
                if (direct_rx == 0 && paused == 0) {
                    odp_schedule_pause();
                    paused = 1;
                } else if (num == 0) {
                    /* Exit main loop after (schedule paused and) no more
                     * packets received */
                    break;
                }
            }
            /* Use last received packet as stop time and don't increase rx_timeouts
             * counter since tx threads have already been stopped */
            if (num)
                t2 = odp_time_local();
            else
                continue;
        }
 
        if (num == 0) {
            if (direct_rx == 0)
                rx_timeouts++;
 
            continue;
        }
 
        if (!clock_started) {
            t1 = odp_time_local();
            clock_started = 1;
        }
 
        bytes = 0;
        for (i = 0; i < num; i++) {
            bytes += odp_packet_len(pkt[i]);
 
            if (ts_off)
                get_timestamp(pkt[i], ts_off, &rx_lat_data, rx_ts);
        }
 
        rx_packets += num;
        rx_bytes   += bytes;
 
        if (odp_unlikely(periodic_stat)) {
            /* All packets from the same queue are from the same pktio interface */
            int index = odp_packet_input_index(pkt[0]);
 
            if (index >= 0) {
                int if_idx = global->if_from_pktio_idx[index];
 
                global->stat[thr].pktio[if_idx].rx_packets += num;
            }
        }
 
        odp_packet_free_multi(pkt, num);
    }
 
    if (clock_started)
        nsec = odp_time_diff_ns(t2, t1);
 
    /* Update stats*/
    global->stat[thr].time_nsec       = nsec;
    global->stat[thr].rx_timeouts     = rx_timeouts;
    global->stat[thr].rx_packets      = rx_packets;
    global->stat[thr].rx_bytes        = rx_bytes;
    global->stat[thr].rx_lat_nsec     = rx_lat_data.nsec;
    global->stat[thr].rx_lat_min_nsec = rx_lat_data.min;
    global->stat[thr].rx_lat_max_nsec = rx_lat_data.max;
    global->stat[thr].rx_lat_packets  = rx_lat_data.packets;
 
    return ret;
}
 
static void drain_scheduler(test_global_t *global)
{
    odp_event_t ev;
    uint64_t wait_time;
 
    if (!global->test_options.num_rx)
        return;
 
    wait_time = odp_schedule_wait_time(100 * ODP_TIME_MSEC_IN_NS);
 
    while ((ev = odp_schedule(NULL, wait_time)) != ODP_EVENT_INVALID) {
        global->drained++;
        odp_event_free(ev);
    }
}
 
static void drain_direct_input(test_global_t *global)
{
    odp_pktin_queue_t pktin;
    odp_packet_t pkt;
    int i, j;
    int num_pktio = global->test_options.num_pktio;
    int num_rx = global->test_options.num_rx;
 
    for (i = 0; i < num_pktio; i++) {
        for (j = 0; j < num_rx; j++) {
            pktin = global->pktio[i].pktin[j];
 
            while (odp_pktin_recv(pktin, &pkt, 1) == 1) {
                global->drained++;
                odp_packet_free(pkt);
            }
        }
    }
}
 
static inline uint8_t *copy_field(uint8_t *dst, uint8_t *src, uint32_t len)
{
    return (uint8_t *)memcpy(dst, src, len) + len;
}
 
static int init_packets(test_global_t *global, int pktio,
            odp_packet_t packet[], uint32_t num, uint16_t seq)
{
    odp_packet_t pkt;
    uint32_t i, j, pkt_len, seg_len, payload_len, l2_len;
    void *data;
    uint8_t *u8;
    odph_ethhdr_t *eth;
    odph_ipv4hdr_t *ip;
    uint16_t tpid;
    test_options_t *test_options = &global->test_options;
    const int proto = test_options->l4_proto;
    uint32_t num_vlan = test_options->num_vlan;
    uint32_t num_custom_l3 = test_options->num_custom_l3;
    uint32_t hdr_len = test_options->hdr_len;
    uint16_t src_port = test_options->src_port;
    uint16_t dst_port = test_options->dst_port;
    uint32_t src_cnt = 0;
    uint32_t dst_cnt = 0;
    uint32_t tcp_seqnum = 0x1234;
    uint64_t value;
    odph_vlanhdr_t *vlan = NULL; /* Fixes bogus compiler warning */
    hdr_field_t *c_hdr = NULL;
 
    if (num_vlan > MAX_VLANS)
        num_vlan = MAX_VLANS;
 
    for (i = 0; i < num; i++) {
        pkt = packet[i];
        pkt_len = odp_packet_len(pkt);
        seg_len = odp_packet_seg_len(pkt);
        data = odp_packet_data(pkt);
        payload_len = pkt_len - hdr_len;
 
        if (seg_len < hdr_len) {
            ODPH_ERR("Error: First segment too short %u\n", seg_len);
            return -1;
        }
 
        /* Ethernet */
        eth = data;
        memcpy(eth->dst.addr, global->pktio[pktio].eth_dst.addr, 6);
        memcpy(eth->src.addr, global->pktio[pktio].eth_src.addr, 6);
        eth->type = odp_cpu_to_be_16(test_options->eth_type);
        l2_len = ODPH_ETHHDR_LEN;
        odp_packet_has_eth_set(pkt, 1);
 
        /* VLAN(s) */
        if (num_vlan) {
            tpid = test_options->vlan[0].tpid;
            eth->type = odp_cpu_to_be_16(tpid);
 
            if (tpid == ETH_TYPE_QINQ)
                odp_packet_has_vlan_qinq_set(pkt, 1);
            else
                odp_packet_has_vlan_set(pkt, 1);
        }
 
        for (j = 0; j < num_vlan; j++) {
            vlan = (odph_vlanhdr_t *)((uint8_t *)data + l2_len);
            vlan->tci = odp_cpu_to_be_16(test_options->vlan[j].tci);
            if (j < num_vlan - 1) {
                tpid = test_options->vlan[j + 1].tpid;
                vlan->type = odp_cpu_to_be_16(tpid);
            }
 
            l2_len += ODPH_VLANHDR_LEN;
        }
 
        if (num_vlan)
            vlan->type = odp_cpu_to_be_16(test_options->eth_type);
 
        odp_packet_l3_offset_set(pkt, l2_len);
 
        /* L3 */
        if (num_custom_l3) {
            /* Custom */
            u8 = (uint8_t *)data + l2_len;
 
            for (j = 0; j < num_custom_l3; j++) {
                c_hdr = &test_options->custom_l3.fields[j];
                value = bswap(c_hdr->value, c_hdr->len);
                u8 = copy_field(u8, (uint8_t *)&value, c_hdr->len);
                c_hdr->value += c_hdr->diff;
            }
        } else {
            /* IPv4 */
            ip = (odph_ipv4hdr_t *)((uint8_t *)data + l2_len);
            memset(ip, 0, ODPH_IPV4HDR_LEN);
            ip->ver_ihl = ODPH_IPV4 << 4 | ODPH_IPV4HDR_IHL_MIN;
            ip->tot_len = odp_cpu_to_be_16(pkt_len - l2_len);
            ip->id = odp_cpu_to_be_16(seq + i);
            ip->ttl = 64;
            /* Use experimental protocol number if L4 proto is none. */
            ip->proto = proto == L4_PROTO_UDP ?
                        ODPH_IPPROTO_UDP : proto == L4_PROTO_TCP ?
                            ODPH_IPPROTO_TCP : 0xFE;
            ip->src_addr = odp_cpu_to_be_32(test_options->ipv4_src);
            ip->dst_addr = odp_cpu_to_be_32(test_options->ipv4_dst);
            ip->chksum = ~odp_chksum_ones_comp16(ip, ODPH_IPV4HDR_LEN);
            odp_packet_has_ipv4_set(pkt, 1);
 
            u8 = ((uint8_t *)data + l2_len + ODPH_IPV4HDR_LEN);
        }
 
        odp_packet_l4_offset_set(pkt, l2_len + test_options->l3_len);
 
        if (proto == L4_PROTO_TCP) {
            odph_tcphdr_t *tcp = (odph_tcphdr_t *)u8;
 
            memset(tcp, 0, ODPH_TCPHDR_LEN);
            tcp->src_port = odp_cpu_to_be_16(src_port);
            tcp->dst_port = odp_cpu_to_be_16(dst_port);
            tcp->seq_no   = odp_cpu_to_be_32(tcp_seqnum);
            tcp->ack_no   = odp_cpu_to_be_32(0x12345678);
            tcp->window   = odp_cpu_to_be_16(0x4000);
            tcp->hl       = 5;
            tcp->ack      = 1;
            tcp_seqnum   += payload_len;
            odp_packet_has_tcp_set(pkt, 1);
        } else if (proto == L4_PROTO_UDP) {
            odph_udphdr_t *udp = (odph_udphdr_t *)u8;
 
            memset(udp, 0, ODPH_UDPHDR_LEN);
            udp->src_port = odp_cpu_to_be_16(src_port);
            udp->dst_port = odp_cpu_to_be_16(dst_port);
            udp->length   = odp_cpu_to_be_16(payload_len + ODPH_UDPHDR_LEN);
            udp->chksum   = 0;
            odp_packet_has_udp_set(pkt, 1);
        }
 
        u8  = data;
        u8 += hdr_len;
 
        if (test_options->fill_pl) {
            /* Init payload until the end of the first segment */
            for (j = 0; j < seg_len - hdr_len; j++)
                u8[j] = j;
        }
 
        /* Insert checksum (TCP checksum is updated before TX) */
        if (proto == L4_PROTO_UDP && !test_options->calc_latency && test_options->calc_cs)
            odph_udp_chksum_set(pkt);
 
        /* Increment port numbers */
        if (test_options->c_mode.src_port) {
            src_cnt++;
            if (src_cnt < test_options->c_mode.src_port) {
                src_port++;
            } else {
                src_port = test_options->src_port;
                src_cnt = 0;
            }
        }
        if (test_options->c_mode.dst_port) {
            dst_cnt++;
            if (dst_cnt < test_options->c_mode.dst_port) {
                dst_port++;
            } else {
                dst_port = test_options->dst_port;
                dst_cnt = 0;
            }
        }
    }
 
    return 0;
}
 
static inline void update_tcp_hdr(odp_packet_t pkt, odp_packet_t base_pkt, uint32_t hdr_len,
                  odp_bool_t calc_cs)
{
    odph_tcphdr_t *tcp = odp_packet_l4_ptr(pkt, NULL);
    odph_tcphdr_t *tcp_base = odp_packet_l4_ptr(base_pkt, NULL);
    uint32_t prev_seqnum = odp_be_to_cpu_32(tcp_base->seq_no);
 
    tcp->seq_no = odp_cpu_to_be_32(prev_seqnum + (odp_packet_len(pkt) - hdr_len));
 
    /* Last used sequence number is stored in the base packet */
    tcp_base->seq_no = tcp->seq_no;
 
    if (calc_cs)
        odph_tcp_chksum_set(pkt);
}
 
static inline int update_rand_data(uint8_t *data, uint32_t data_len)
{
    uint32_t generated = 0;
    uint32_t retries = 0;
 
    while (generated < data_len) {
        int32_t  ret = odp_random_data(data, data_len - generated, ODP_RANDOM_BASIC);
 
        if (odp_unlikely(ret < 0)) {
            ODPH_ERR("Error: odp_random_data() failed: %" PRId32 "\n", ret);
            return -1;
        } else if (odp_unlikely(ret == 0)) {
            retries++;
            if (odp_unlikely(retries > MAX_RAND_RETRIES)) {
                ODPH_ERR("Error: Failed to create random data\n");
                return -1;
            }
            continue;
        }
        data += ret;
        generated += ret;
    }
    return 0;
}
 
static int init_global_data(test_global_t *global)
{
    memset(global, 0, sizeof(test_global_t));
    odp_atomic_init_u32(&global->exit_test, 0);
 
    for (int i = 0; i < MAX_THREADS; i++) {
        uint8_t *rand_data = (uint8_t *)global->rand_data[i];
 
        if (odp_unlikely(update_rand_data(rand_data, RAND_16BIT_WORDS * 2)))
            return -1;
 
        global->thread_arg[i].global = global;
    }
    return 0;
}
 
static inline void set_timestamp(odp_packet_t pkt, uint32_t ts_off)
{
    const ts_data_t ts_data = { .magic = TS_MAGIC, .tx_ts = odp_time_global_strict() };
 
    (void)odp_packet_copy_from_mem(pkt, ts_off, sizeof(ts_data), &ts_data);
}
 
static int alloc_packets(odp_pool_t pool, odp_packet_t *pkt_tbl, uint32_t num,
             test_global_t *global)
{
    uint32_t i, pkt_len;
    test_options_t *test_options = &global->test_options;
    uint32_t num_bins = global->num_bins;
 
    pkt_len = test_options->pkt_len;
 
    for (i = 0; i < num; i++) {
        if (num_bins)
            pkt_len = global->len_bin[i % num_bins];
 
        pkt_tbl[i] = odp_packet_alloc(pool, pkt_len);
        if (pkt_tbl[i] == ODP_PACKET_INVALID) {
            ODPH_ERR("Error: Alloc of %uB packet failed\n", pkt_len);
            break;
        }
    }
 
    if (i == 0)
        return -1;
 
    if (i != num) {
        odp_packet_free_multi(pkt_tbl, i);
        return -1;
    }
 
    return 0;
}
 
static inline uint32_t form_burst(odp_packet_t out_pkt[], uint32_t burst_size, uint32_t num_bins,
                  uint32_t burst, odp_packet_t *pkt_tbl, odp_pool_t pool,
                  int tx_mode, odp_bool_t calc_latency, uint32_t hdr_len,
                  odp_bool_t calc_cs, uint64_t *total_bytes, uint8_t l4_proto,
                  const uint16_t *rand_data)
{
    uint32_t i, idx;
    odp_packet_t pkt;
    static __thread int rand_idx;
    uint64_t bytes = 0;
 
    idx = burst * burst_size;
    if (num_bins)
        idx = burst * burst_size * num_bins;
 
    for (i = 0; i < burst_size; i++) {
        if (num_bins) {
            uint32_t bin;
 
            if (odp_unlikely(rand_idx >= RAND_16BIT_WORDS))
                rand_idx = 0;
 
            /* Select random length bin */
            bin = rand_data[rand_idx++] % num_bins;
            pkt = pkt_tbl[idx + bin];
            idx += num_bins;
        } else {
            pkt = pkt_tbl[idx];
            idx++;
        }
 
        if (tx_mode == TX_MODE_DF) {
            out_pkt[i] = pkt;
        } else if (tx_mode == TX_MODE_REF) {
            out_pkt[i] = odp_packet_ref_static(pkt);
 
            if (odp_unlikely(out_pkt[i] == ODP_PACKET_INVALID))
                break;
        } else {
            out_pkt[i] = odp_packet_copy(pkt, pool);
 
            if (odp_unlikely(out_pkt[i] == ODP_PACKET_INVALID))
                break;
 
            if (calc_latency)
                set_timestamp(out_pkt[i], hdr_len);
 
            if (l4_proto == L4_PROTO_TCP)
                update_tcp_hdr(out_pkt[i], pkt, hdr_len, calc_cs);
            else if (l4_proto == L4_PROTO_UDP && calc_latency && calc_cs)
                odph_udp_chksum_set(out_pkt[i]);
        }
 
        bytes += odp_packet_len(out_pkt[i]);
    }
 
    *total_bytes = bytes;
 
    return i;
}
 
static inline int send_burst(odp_pktout_queue_t pktout, odp_packet_t pkt[],
                 uint32_t num, int tx_mode, uint64_t *drop_bytes,
                 const odp_packet_lso_opt_t *lso_opt ODP_UNUSED)
{
    int ret;
    uint32_t sent;
    uint64_t bytes = 0;
 
    ret = odp_pktout_send(pktout, pkt, num);
 
    sent = ret;
    if (odp_unlikely(ret < 0))
        sent = 0;
 
    if (odp_unlikely(sent != num)) {
        uint32_t i;
        uint32_t num_drop = num - sent;
 
        for (i = sent; i < num; i++)
            bytes += odp_packet_len(pkt[i]);
 
        if (tx_mode != TX_MODE_DF)
            odp_packet_free_multi(&pkt[sent], num_drop);
    }
 
    *drop_bytes = bytes;
 
    return ret;
}
 
static inline int send_burst_lso(odp_pktout_queue_t pktout, odp_packet_t pkt[], uint32_t num,
                 int tx_mode ODP_UNUSED, uint64_t *drop_bytes,
                 const odp_packet_lso_opt_t *lso_opt)
{
    int ret;
    uint32_t sent;
    uint64_t bytes = 0;
 
    ret = odp_pktout_send_lso(pktout, pkt, num, lso_opt);
 
    sent = ret;
    if (odp_unlikely(ret < 0))
        sent = 0;
 
    if (odp_unlikely(sent != num)) {
        uint32_t i;
        uint32_t num_drop = num - sent;
 
        for (i = sent; i < num; i++)
            bytes += odp_packet_len(pkt[i]);
 
        odp_packet_free_multi(&pkt[sent], num_drop);
    }
 
    *drop_bytes = bytes;
 
    return ret;
}
 
static int tx_thread(void *arg)
{
    int i, tx_thr;
    uint32_t exit_test, num_alloc, j;
    odp_time_t t1, t2, next_tmo;
    uint64_t diff_ns, t1_nsec;
    odp_packet_t *pkt_tbl;
    thread_arg_t *thread_arg = arg;
    test_global_t *global = thread_arg->global;
    test_options_t *test_options = &global->test_options;
    int periodic_stat = test_options->update_msec ? 1 : 0;
    odp_pool_t pool = global->pool;
    uint64_t gap_nsec = test_options->gap_nsec;
    uint64_t quit = test_options->quit;
    uint64_t tx_timeouts = 0;
    uint64_t tx_bytes = 0;
    uint64_t tx_packets = 0;
    uint64_t tx_drops = 0;
    int ret = 0;
    const int thr = odp_thread_id();
    const uint32_t hdr_len = test_options->hdr_len;
    const uint32_t burst_size = test_options->burst_size;
    const uint32_t bursts = test_options->bursts;
    const uint32_t num_tx = test_options->num_tx;
    const uint16_t *rand_data = global->rand_data[thr];
    const uint8_t l4_proto = test_options->l4_proto;
    const int tx_mode = test_options->tx_mode;
    const odp_bool_t calc_cs = test_options->calc_cs;
    const odp_bool_t calc_latency = test_options->calc_latency;
    int num_pktio = test_options->num_pktio;
    odp_pktout_queue_t pktout[num_pktio];
    odp_packet_lso_opt_t lso_opt[num_pktio];
    uint32_t tot_packets = 0;
    uint32_t num_bins = global->num_bins;
    const send_fn_t send_burst_fn = test_options->lso.enabled ? send_burst_lso : send_burst;
 
    tx_thr = thread_arg->tx_thr;
    global->stat[thr].thread_type = TX_THREAD;
 
    num_alloc = global->num_tx_pkt;
    if (num_bins)
        num_alloc = global->num_tx_pkt * num_bins;
 
    for (i = 0; i < num_pktio; i++) {
        int seq = i * num_alloc;
 
        pktout[i] = thread_arg->pktout[i];
        pkt_tbl = thread_arg->packet[i];
 
        lso_opt[i].lso_profile = thread_arg->lso_profile[i];
        lso_opt[i].payload_offset = test_options->lso.payload_offset;
        lso_opt[i].max_payload_len = test_options->lso.max_payload_len;
 
        if (alloc_packets(pool, pkt_tbl, num_alloc, global)) {
            ret = -1;
            break;
        }
 
        tot_packets += num_alloc;
 
        if (init_packets(global, i, pkt_tbl, num_alloc, seq)) {
            ret = -1;
            break;
        }
 
        if (tx_mode == TX_MODE_DF) {
            for (j = 0; j < num_alloc; j++)
                odp_packet_free_ctrl_set(pkt_tbl[j],
                             ODP_PACKET_FREE_CTRL_DONT_FREE);
        }
    }
 
    /* Start all workers at the same time */
    odp_barrier_wait(&global->barrier);
 
    t1 = odp_time_local();
 
    /* Start TX burst at different per thread offset */
    t1_nsec = odp_time_to_ns(t1) + gap_nsec + (tx_thr * gap_nsec / num_tx);
 
    while (ret == 0) {
        exit_test = odp_atomic_load_u32(&global->exit_test);
        if (exit_test)
            break;
 
        if (quit && tx_timeouts >= quit) {
            odp_atomic_inc_u32(&global->exit_test);
            break;
        }
 
        if (gap_nsec) {
            uint64_t nsec = t1_nsec + tx_timeouts * gap_nsec;
 
            next_tmo = odp_time_local_from_ns(nsec);
            odp_time_wait_until(next_tmo);
        }
        tx_timeouts++;
 
        /* Send bursts to each pktio */
        for (i = 0; i < num_pktio; i++) {
            uint32_t num;
            int sent;
            uint64_t total_bytes, drop_bytes;
            odp_packet_t pkt[burst_size];
 
            pkt_tbl = thread_arg->packet[i];
 
            for (j = 0; j < bursts; j++) {
                num = form_burst(pkt, burst_size, num_bins, j, pkt_tbl, pool,
                         tx_mode, calc_latency, hdr_len, calc_cs,
                         &total_bytes, l4_proto, rand_data);
 
                if (odp_unlikely(num == 0)) {
                    tx_drops += burst_size;
                    continue;
                }
 
                sent = send_burst_fn(pktout[i], pkt, num, tx_mode, &drop_bytes,
                             &lso_opt[i]);
 
                if (odp_unlikely(sent < 0)) {
                    ret = -1;
                    tx_drops += burst_size;
                    break;
                }
 
                tx_bytes   += total_bytes - drop_bytes;
                tx_packets += sent;
                if (odp_unlikely(sent < (int)burst_size))
                    tx_drops += burst_size - sent;
 
                if (odp_unlikely(periodic_stat))
                    global->stat[thr].pktio[i].tx_packets += sent;
            }
        }
    }
 
    t2 = odp_time_local();
    diff_ns = odp_time_diff_ns(t2, t1);
 
    for (i = 0; i < num_pktio; i++) {
        pkt_tbl = thread_arg->packet[i];
 
        if (tot_packets == 0)
            break;
 
        odp_packet_free_multi(pkt_tbl, num_alloc);
        tot_packets -= num_alloc;
    }
 
    /* Update stats */
    global->stat[thr].time_nsec   = diff_ns;
    global->stat[thr].tx_timeouts = tx_timeouts;
    global->stat[thr].tx_bytes    = tx_bytes;
    global->stat[thr].tx_packets  = tx_packets;
    global->stat[thr].tx_drops    = tx_drops;
 
    return ret;
}
 
static int start_workers(test_global_t *global, odp_instance_t instance)
{
    odph_thread_common_param_t thr_common;
    int i, j, ret, tx_thr;
    test_options_t *test_options = &global->test_options;
    int num_pktio = test_options->num_pktio;
    int num_rx  = test_options->num_rx;
    int num_cpu = test_options->num_cpu;
    odph_thread_param_t thr_param[num_cpu];
 
    memset(global->thread_tbl, 0, sizeof(global->thread_tbl));
    odph_thread_common_param_init(&thr_common);
 
    thr_common.instance = instance;
    thr_common.cpumask  = &global->cpumask;
 
    /* Receive threads */
    for (i = 0; i < num_rx; i++) {
        /* In direct mode, dedicate a pktin queue per pktio interface (per RX thread) */
        for (j = 0; test_options->direct_rx && j < num_pktio; j++)
            global->thread_arg[i].pktin[j] = global->pktio[j].pktin[i];
 
        odph_thread_param_init(&thr_param[i]);
        thr_param[i].start    = rx_thread;
        thr_param[i].arg      = &global->thread_arg[i];
        thr_param[i].thr_type = ODP_THREAD_WORKER;
    }
 
    /* Transmit threads */
    tx_thr = 0;
    for (i = num_rx; i < num_cpu; i++) {
        for (j = 0; j < num_pktio; j++) {
            odp_pktout_queue_t pktout;
 
            global->thread_arg[i].tx_thr = tx_thr;
 
            /* Dedicate a pktout queue per pktio interface
             * (per TX thread) */
            pktout = global->pktio[j].pktout[tx_thr];
            global->thread_arg[i].pktout[j] = pktout;
 
            global->thread_arg[i].lso_profile[j] = global->pktio[j].lso_profile;
        }
 
        odph_thread_param_init(&thr_param[i]);
        thr_param[i].start    = tx_thread;
        thr_param[i].arg      = &global->thread_arg[i];
        thr_param[i].thr_type = ODP_THREAD_WORKER;
        tx_thr++;
    }
 
    ret = odph_thread_create(global->thread_tbl, &thr_common, thr_param,
                 num_cpu);
 
    if (ret != num_cpu) {
        ODPH_ERR("Error: thread create failed %i\n", ret);
        return -1;
    }
 
    return 0;
}
 
static void print_periodic_stat(test_global_t *global, uint64_t nsec)
{
    int i, j;
    int num_pktio = global->test_options.num_pktio;
    double sec  = nsec / 1000000000.0;
    uint64_t num_tx[num_pktio];
    uint64_t num_rx[num_pktio];
 
    for (i = 0; i < num_pktio; i++) {
        num_tx[i] = 0;
        num_rx[i] = 0;
 
        for (j = 0; j < MAX_THREADS; j++) {
            if (global->stat[j].thread_type == RX_THREAD)
                num_rx[i] += global->stat[j].pktio[i].rx_packets;
            else if (global->stat[j].thread_type == TX_THREAD)
                num_tx[i] += global->stat[j].pktio[i].tx_packets;
        }
    }
    if (global->test_options.num_tx) {
        printf("  TX: %12.6fs", sec);
        for (i = 0; i < num_pktio; i++)
            printf(" %10" PRIu64 "", num_tx[i]);
        printf("\n");
    }
 
    if (global->test_options.num_rx) {
        printf("  RX: %12.6fs", sec);
        for (i = 0; i < num_pktio; i++)
            printf(" %10" PRIu64 "", num_rx[i]);
        printf("\n");
    }
}
 
static void periodic_print_loop(test_global_t *global)
{
    odp_time_t t1, t2;
    uint64_t nsec;
    int i;
    int num_pktio = global->test_options.num_pktio;
 
    printf("\n\nPackets per interface\n");
    printf("  Dir          Time");
    for (i = 0; i < num_pktio; i++)
        printf(" %10i", i);
 
    printf("\n  -----------------");
    for (i = 0; i < num_pktio; i++)
        printf("-----------");
 
    printf("\n");
 
    t1 = odp_time_local();
    while (odp_atomic_load_u32(&global->exit_test) == 0) {
        usleep(1000 * global->test_options.update_msec);
        t2 = odp_time_local();
        nsec = odp_time_diff_ns(t2, t1);
        print_periodic_stat(global, nsec);
    }
}
 
static void print_humanised_time(double time_nsec)
{
    if (time_nsec > ODP_TIME_SEC_IN_NS)
        printf("%.2f s\n", time_nsec / ODP_TIME_SEC_IN_NS);
    else if (time_nsec > ODP_TIME_MSEC_IN_NS)
        printf("%.2f ms\n", time_nsec / ODP_TIME_MSEC_IN_NS);
    else if (time_nsec > ODP_TIME_USEC_IN_NS)
        printf("%.2f us\n", time_nsec / ODP_TIME_USEC_IN_NS);
    else
        printf("%.0f ns\n", time_nsec);
}
 
static void print_humanised_latency(double lat_nsec, double lat_min_nsec, double lat_max_nsec)
{
    printf("  rx ave packet latency:      ");
    print_humanised_time(lat_nsec);
    printf("  rx min packet latency:      ");
    print_humanised_time(lat_min_nsec);
    printf("  rx max packet latency:      ");
    print_humanised_time(lat_max_nsec);
}
 
static int print_final_stat(test_global_t *global)
{
    int i, num_thr;
    double rx_mbit_per_sec, tx_mbit_per_sec;
    test_options_t *test_options = &global->test_options;
    int num_rx = test_options->num_rx;
    int num_tx = test_options->num_tx;
    uint64_t rx_nsec_sum = 0;
    uint64_t rx_pkt_sum = 0;
    uint64_t rx_byte_sum = 0;
    uint64_t rx_tmo_sum = 0;
    uint64_t rx_lat_nsec_sum = 0;
    uint64_t rx_lat_min_nsec = UINT64_MAX;
    uint64_t rx_lat_max_nsec = 0;
    uint64_t rx_lat_pkt_sum = 0;
    uint64_t tx_nsec_sum = 0;
    uint64_t tx_pkt_sum = 0;
    uint64_t tx_byte_sum = 0;
    uint64_t tx_drop_sum = 0;
    uint64_t tx_tmo_sum = 0;
    double rx_pkt_ave = 0.0;
    double rx_pkt_per_sec = 0.0;
    double rx_byte_per_sec = 0.0;
    double rx_pkt_len = 0.0;
    double rx_sec = 0.0;
    double rx_ave_lat_nsec = 0.0;
    double tx_pkt_per_sec = 0.0;
    double tx_byte_per_sec = 0.0;
    double tx_sec = 0.0;
 
    printf("\nRESULTS PER THREAD\n");
    printf("  rx thread:\n");
    printf("           1          2          3          4          5          6          7          8\n");
    printf("  ---------------------------------------------------------------------------------------\n");
    printf("  ");
 
    num_thr = 0;
    for (i = 0; i < MAX_THREADS; i++) {
        if (global->stat[i].thread_type != RX_THREAD)
            continue;
 
        if (num_thr && (num_thr % 8) == 0)
            printf("\n  ");
 
        printf("%10" PRIu64 " ", global->stat[i].rx_packets);
        num_thr++;
    }
 
    printf("\n\n");
 
    printf("  tx thread:\n");
    printf("           1          2          3          4          5          6          7          8\n");
    printf("  ---------------------------------------------------------------------------------------\n");
    printf("  ");
 
    num_thr = 0;
    for (i = 0; i < MAX_THREADS; i++) {
        if (global->stat[i].thread_type != TX_THREAD)
            continue;
 
        if (num_thr && (num_thr % 8) == 0)
            printf("\n  ");
 
        printf("%10" PRIu64 " ", global->stat[i].tx_packets);
        num_thr++;
    }
 
    printf("\n\n");
 
    for (i = 0; i < MAX_THREADS; i++) {
        if (global->stat[i].thread_type == RX_THREAD) {
            rx_tmo_sum      += global->stat[i].rx_timeouts;
            rx_pkt_sum      += global->stat[i].rx_packets;
            rx_byte_sum     += global->stat[i].rx_bytes;
            rx_nsec_sum     += global->stat[i].time_nsec;
            rx_lat_nsec_sum += global->stat[i].rx_lat_nsec;
            rx_lat_pkt_sum  += global->stat[i].rx_lat_packets;
 
            if (global->stat[i].rx_lat_min_nsec < rx_lat_min_nsec)
                rx_lat_min_nsec = global->stat[i].rx_lat_min_nsec;
 
            if (global->stat[i].rx_lat_max_nsec > rx_lat_max_nsec)
                rx_lat_max_nsec = global->stat[i].rx_lat_max_nsec;
        } else if (global->stat[i].thread_type == TX_THREAD) {
            tx_tmo_sum  += global->stat[i].tx_timeouts;
            tx_pkt_sum  += global->stat[i].tx_packets;
            tx_byte_sum += global->stat[i].tx_bytes;
            tx_drop_sum += global->stat[i].tx_drops;
            tx_nsec_sum += global->stat[i].time_nsec;
        }
    }
 
    if (num_rx)
        rx_pkt_ave = (double)rx_pkt_sum / num_rx;
    rx_sec = rx_nsec_sum / 1000000000.0;
    tx_sec = tx_nsec_sum / 1000000000.0;
 
    /* Packets and bytes per thread per sec */
    if (rx_nsec_sum) {
        rx_pkt_per_sec = (1000000000.0 * (double)rx_pkt_sum) /
                 (double)rx_nsec_sum;
 
        rx_byte_per_sec  = 1000000000.0;
        rx_byte_per_sec *= (rx_byte_sum + 24 * rx_pkt_sum);
        rx_byte_per_sec /= (double)rx_nsec_sum;
    }
 
    if (tx_nsec_sum) {
        tx_pkt_per_sec = (1000000000.0 * (double)tx_pkt_sum) /
                 (double)tx_nsec_sum;
 
        tx_byte_per_sec  = 1000000000.0;
        tx_byte_per_sec *= (tx_byte_sum + 24 * tx_pkt_sum);
        tx_byte_per_sec /= (double)tx_nsec_sum;
    }
 
    /* Total Mbit/s */
    rx_mbit_per_sec = (num_rx * 8 * rx_byte_per_sec) / 1000000.0;
    tx_mbit_per_sec = (num_tx * 8 * tx_byte_per_sec) / 1000000.0;
 
    if (rx_pkt_sum)
        rx_pkt_len = (double)rx_byte_sum / rx_pkt_sum;
 
    if (rx_lat_pkt_sum)
        rx_ave_lat_nsec = (double)rx_lat_nsec_sum / rx_lat_pkt_sum;
 
    printf("TOTAL (%i rx and %i tx threads)\n", num_rx, num_tx);
    printf("  rx timeouts:                %" PRIu64 "\n", rx_tmo_sum);
    printf("  rx time spent (sec):        %.3f\n", rx_sec);
    printf("  rx packets:                 %" PRIu64 "\n", rx_pkt_sum);
    printf("  rx packets drained:         %" PRIu64 "\n", global->drained);
    printf("  rx packets per thr:         %.1f\n", rx_pkt_ave);
    printf("  rx packets per thr per sec: %.1f\n", rx_pkt_per_sec);
    printf("  rx packets per sec:         %.1f\n", num_rx * rx_pkt_per_sec);
    printf("  rx ave packet len:          %.1f\n", rx_pkt_len);
 
    if (rx_lat_pkt_sum)
        print_humanised_latency(rx_ave_lat_nsec, rx_lat_min_nsec, rx_lat_max_nsec);
 
    printf("  rx Mbit/s:                  %.1f\n", rx_mbit_per_sec);
    printf("\n");
    printf("  tx timeouts:                %" PRIu64 "\n", tx_tmo_sum);
    printf("  tx time spent (sec):        %.3f\n", tx_sec);
    printf("  tx packets:                 %" PRIu64 "\n", tx_pkt_sum);
    printf("  tx dropped packets:         %" PRIu64 "\n", tx_drop_sum);
    printf("  tx packets per thr per sec: %.1f\n", tx_pkt_per_sec);
    printf("  tx packets per sec:         %.1f\n", num_tx * tx_pkt_per_sec);
    printf("  tx Mbit/s:                  %.1f\n", tx_mbit_per_sec);
    printf("\n");
 
    if (rx_pkt_sum < MIN_RX_PACKETS_CI)
        return -1;
 
    return 0;
}
 
static void sig_handler(int signo)
{
    (void)signo;
 
    if (test_global == NULL)
        return;
 
    odp_atomic_add_u32(&test_global->exit_test, 1);
}
 
int main(int argc, char **argv)
{
    odph_helper_options_t helper_options;
    odp_instance_t instance;
    odp_init_t init;
    test_global_t *global;
    odp_shm_t shm;
    int ret = 0;
 
    signal(SIGINT, sig_handler);
 
    /* Let helper collect its own arguments (e.g. --odph_proc) */
    argc = odph_parse_options(argc, argv);
    if (odph_options(&helper_options)) {
        ODPH_ERR("Error: reading ODP helper options failed.\n");
        exit(EXIT_FAILURE);
    }
 
    /* List features not to be used */
    odp_init_param_init(&init);
    init.not_used.feat.cls      = 1;
    init.not_used.feat.compress = 1;
    init.not_used.feat.crypto   = 1;
    init.not_used.feat.ipsec    = 1;
    init.not_used.feat.timer    = 1;
    init.not_used.feat.tm       = 1;
 
    init.mem_model = helper_options.mem_model;
 
    /* Init ODP before calling anything else */
    if (odp_init_global(&instance, &init, NULL)) {
        ODPH_ERR("Error: Global init failed.\n");
        return 1;
    }
 
    /* Init this thread */
    if (odp_init_local(instance, ODP_THREAD_CONTROL)) {
        ODPH_ERR("Error: Local init failed.\n");
        return 1;
    }
 
    shm = odp_shm_reserve("packet_gen_global", sizeof(test_global_t),
                  ODP_CACHE_LINE_SIZE, 0);
 
    if (shm == ODP_SHM_INVALID) {
        ODPH_ERR("Error: SHM reserve failed.\n");
        return 1;
    }
 
    global = odp_shm_addr(shm);
    test_global = global;
 
    if (init_global_data(global)) {
        ret = 1;
        goto term;
    }
 
    if (parse_options(argc, argv, global)) {
        ret = 1;
        goto term;
    }
 
    odp_sys_info_print();
 
    /* Avoid all scheduler API calls in direct input mode */
    if (global->test_options.direct_rx == 0)
        odp_schedule_config(NULL);
 
    if (set_num_cpu(global)) {
        ret = 1;
        goto term;
    }
 
    if (create_packet_pool(global)) {
        ret = 1;
        goto term;
    }
 
    if (open_pktios(global)) {
        ret = 1;
        goto term;
    }
 
    if (start_pktios(global)) {
        ret = 1;
        goto term;
    }
 
    /* Start worker threads */
    start_workers(global, instance);
 
    /* Wait until workers have started. */
    odp_barrier_wait(&global->barrier);
 
    /* Periodic statistics printing */
    if (global->test_options.update_msec)
        periodic_print_loop(global);
 
    /* Wait workers to exit */
    odph_thread_join(global->thread_tbl,
             global->test_options.num_cpu);
 
    if (stop_pktios(global))
        ret = 1;
 
    if (global->test_options.direct_rx)
        drain_direct_input(global);
    else
        drain_scheduler(global);
 
    if (close_pktios(global))
        ret = 1;
 
    if (print_final_stat(global))
        ret = 2;
 
term:
    if (destroy_packet_pool(global)) {
        ODPH_ERR("Error: destroy_packet_pool() failed.\n");
        return 1;
    }
 
    if (odp_shm_free(shm)) {
        ODPH_ERR("Error: SHM free failed.\n");
        return 1;
    }
 
    if (odp_term_local()) {
        ODPH_ERR("Error: term local failed.\n");
        return 1;
    }
 
    if (odp_term_global(instance)) {
        ODPH_ERR("Error: term global failed.\n");
        return 1;
    }
 
    return ret;
}