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

#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <inttypes.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/ip6.h>
#include <string.h>
#include <sys/queue.h>
#include <stdarg.h>
#include <errno.h>
#include <signal.h>
#include <getopt.h>

#include <rte_common.h>
#include <rte_bitmap.h>
#include <rte_byteorder.h>
#include <rte_log.h>
#include <rte_eal.h>
#include <rte_launch.h>
#include <rte_cycles.h>
#include <rte_prefetch.h>
#include <rte_lcore.h>
#include <rte_per_lcore.h>
#include <rte_branch_prediction.h>
#include <rte_interrupts.h>
#include <rte_random.h>
#include <rte_debug.h>
#include <rte_ether.h>
#include <rte_ethdev.h>
#include <rte_mempool.h>
#include <rte_mbuf.h>
#include <rte_acl.h>
#include <rte_lpm.h>
#include <rte_lpm6.h>
#include <rte_hash.h>
#include <rte_jhash.h>
#include <rte_cryptodev.h>
#include <rte_security.h>
#include <rte_eventdev.h>
#include <rte_ip.h>
#include <rte_ip_frag.h>
#include <rte_alarm.h>
#include <rte_telemetry.h>

#include "event_helper.h"
#include "flow.h"
#include "ipsec.h"
#include "ipsec_worker.h"
#include "parser.h"
#include "sad.h"

volatile bool force_quit;

#define MAX_JUMBO_PKT_LEN  9600

#define MEMPOOL_CACHE_SIZE 256

#define CDEV_QUEUE_DESC 2048
#define CDEV_MAP_ENTRIES 16384
#define CDEV_MP_CACHE_SZ 64
#define CDEV_MP_CACHE_MULTIPLIER 1.5 /* from rte_mempool.c */
#define MAX_QUEUE_PAIRS 1

#define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */

/* Configure how many packets ahead to prefetch, when reading packets */
#define PREFETCH_OFFSET 3

#define MAX_RX_QUEUE_PER_LCORE 16

#define MAX_LCORE_PARAMS 1024

/*
 * Configurable number of RX/TX ring descriptors
 */
#define IPSEC_SECGW_RX_DESC_DEFAULT 1024
#define IPSEC_SECGW_TX_DESC_DEFAULT 1024
static uint16_t nb_rxd = IPSEC_SECGW_RX_DESC_DEFAULT;
static uint16_t nb_txd = IPSEC_SECGW_TX_DESC_DEFAULT;

#define ETHADDR_TO_UINT64(addr) __BYTES_TO_UINT64( \
                (addr)->addr_bytes[0], (addr)->addr_bytes[1], \
                (addr)->addr_bytes[2], (addr)->addr_bytes[3], \
                (addr)->addr_bytes[4], (addr)->addr_bytes[5], \
                0, 0)

#define FRAG_TBL_BUCKET_ENTRIES 4
#define MAX_FRAG_TTL_NS         (10LL * NS_PER_S)

#define MTU_TO_FRAMELEN(x)      ((x) + RTE_ETHER_HDR_LEN + RTE_ETHER_CRC_LEN)

struct ethaddr_info ethaddr_tbl[RTE_MAX_ETHPORTS] = {
        { 0, ETHADDR(0x00, 0x16, 0x3e, 0x7e, 0x94, 0x9a) },
        { 0, ETHADDR(0x00, 0x16, 0x3e, 0x22, 0xa1, 0xd9) },
        { 0, ETHADDR(0x00, 0x16, 0x3e, 0x08, 0x69, 0x26) },
        { 0, ETHADDR(0x00, 0x16, 0x3e, 0x49, 0x9e, 0xdd) }
};

struct flow_info flow_info_tbl[RTE_MAX_ETHPORTS];

#define CMD_LINE_OPT_CONFIG             "config"
#define CMD_LINE_OPT_SINGLE_SA          "single-sa"
#define CMD_LINE_OPT_CRYPTODEV_MASK     "cryptodev_mask"
#define CMD_LINE_OPT_TRANSFER_MODE      "transfer-mode"
#define CMD_LINE_OPT_SCHEDULE_TYPE      "event-schedule-type"
#define CMD_LINE_OPT_RX_OFFLOAD         "rxoffload"
#define CMD_LINE_OPT_TX_OFFLOAD         "txoffload"
#define CMD_LINE_OPT_REASSEMBLE         "reassemble"
#define CMD_LINE_OPT_MTU                "mtu"
#define CMD_LINE_OPT_FRAG_TTL           "frag-ttl"
#define CMD_LINE_OPT_EVENT_VECTOR       "event-vector"
#define CMD_LINE_OPT_VECTOR_SIZE        "vector-size"
#define CMD_LINE_OPT_VECTOR_TIMEOUT     "vector-tmo"
#define CMD_LINE_OPT_VECTOR_POOL_SZ     "vector-pool-sz"
#define CMD_LINE_OPT_PER_PORT_POOL      "per-port-pool"

#define CMD_LINE_ARG_EVENT      "event"
#define CMD_LINE_ARG_POLL       "poll"
#define CMD_LINE_ARG_ORDERED    "ordered"
#define CMD_LINE_ARG_ATOMIC     "atomic"
#define CMD_LINE_ARG_PARALLEL   "parallel"

enum {
        /* long options mapped to a short option */

        /* first long only option value must be >= 256, so that we won't
         * conflict with short options
         */
        CMD_LINE_OPT_MIN_NUM = 256,
        CMD_LINE_OPT_CONFIG_NUM,
        CMD_LINE_OPT_SINGLE_SA_NUM,
        CMD_LINE_OPT_CRYPTODEV_MASK_NUM,
        CMD_LINE_OPT_TRANSFER_MODE_NUM,
        CMD_LINE_OPT_SCHEDULE_TYPE_NUM,
        CMD_LINE_OPT_RX_OFFLOAD_NUM,
        CMD_LINE_OPT_TX_OFFLOAD_NUM,
        CMD_LINE_OPT_REASSEMBLE_NUM,
        CMD_LINE_OPT_MTU_NUM,
        CMD_LINE_OPT_FRAG_TTL_NUM,
        CMD_LINE_OPT_EVENT_VECTOR_NUM,
        CMD_LINE_OPT_VECTOR_SIZE_NUM,
        CMD_LINE_OPT_VECTOR_TIMEOUT_NUM,
        CMD_LINE_OPT_VECTOR_POOL_SZ_NUM,
        CMD_LINE_OPT_PER_PORT_POOL_NUM,
};

static const struct option lgopts[] = {
        {CMD_LINE_OPT_CONFIG, 1, 0, CMD_LINE_OPT_CONFIG_NUM},
        {CMD_LINE_OPT_SINGLE_SA, 1, 0, CMD_LINE_OPT_SINGLE_SA_NUM},
        {CMD_LINE_OPT_CRYPTODEV_MASK, 1, 0, CMD_LINE_OPT_CRYPTODEV_MASK_NUM},
        {CMD_LINE_OPT_TRANSFER_MODE, 1, 0, CMD_LINE_OPT_TRANSFER_MODE_NUM},
        {CMD_LINE_OPT_SCHEDULE_TYPE, 1, 0, CMD_LINE_OPT_SCHEDULE_TYPE_NUM},
        {CMD_LINE_OPT_RX_OFFLOAD, 1, 0, CMD_LINE_OPT_RX_OFFLOAD_NUM},
        {CMD_LINE_OPT_TX_OFFLOAD, 1, 0, CMD_LINE_OPT_TX_OFFLOAD_NUM},
        {CMD_LINE_OPT_REASSEMBLE, 1, 0, CMD_LINE_OPT_REASSEMBLE_NUM},
        {CMD_LINE_OPT_MTU, 1, 0, CMD_LINE_OPT_MTU_NUM},
        {CMD_LINE_OPT_FRAG_TTL, 1, 0, CMD_LINE_OPT_FRAG_TTL_NUM},
        {CMD_LINE_OPT_EVENT_VECTOR, 0, 0, CMD_LINE_OPT_EVENT_VECTOR_NUM},
        {CMD_LINE_OPT_VECTOR_SIZE, 1, 0, CMD_LINE_OPT_VECTOR_SIZE_NUM},
        {CMD_LINE_OPT_VECTOR_TIMEOUT, 1, 0, CMD_LINE_OPT_VECTOR_TIMEOUT_NUM},
        {CMD_LINE_OPT_VECTOR_POOL_SZ, 1, 0, CMD_LINE_OPT_VECTOR_POOL_SZ_NUM},
        {CMD_LINE_OPT_PER_PORT_POOL, 0, 0, CMD_LINE_OPT_PER_PORT_POOL_NUM},
        {NULL, 0, 0, 0}
};

uint32_t unprotected_port_mask;
uint32_t single_sa_idx;
/* mask of enabled ports */
static uint32_t enabled_port_mask;
static uint64_t enabled_cryptodev_mask = UINT64_MAX;
static int32_t promiscuous_on = 1;
static int32_t numa_on = 1; /**< NUMA is enabled by default. */
static uint32_t nb_lcores;
static uint32_t single_sa;
uint32_t nb_bufs_in_pool;

/*
 * RX/TX HW offload capabilities to enable/use on ethernet ports.
 * By default all capabilities are enabled.
 */
static uint64_t dev_rx_offload = UINT64_MAX;
static uint64_t dev_tx_offload = UINT64_MAX;

/*
 * global values that determine multi-seg policy
 */
static uint32_t frag_tbl_sz;
static uint32_t frame_buf_size = RTE_MBUF_DEFAULT_BUF_SIZE;
static uint32_t mtu_size = RTE_ETHER_MTU;
static uint64_t frag_ttl_ns = MAX_FRAG_TTL_NS;
static uint32_t stats_interval;

/* application wide librte_ipsec/SA parameters */
struct app_sa_prm app_sa_prm = {
                        .enable = 0,
                        .cache_sz = SA_CACHE_SZ,
                        .udp_encap = 0
                };
static const char *cfgfile;

struct lcore_rx_queue {
        uint16_t port_id;
        uint8_t queue_id;
} __rte_cache_aligned;

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

static struct lcore_params lcore_params_array[MAX_LCORE_PARAMS];

static struct lcore_params *lcore_params;
static uint16_t nb_lcore_params;

static struct rte_hash *cdev_map_in;
static struct rte_hash *cdev_map_out;

struct buffer {
        uint16_t len;
        struct rte_mbuf *m_table[MAX_PKT_BURST] __rte_aligned(sizeof(void *));
};

struct lcore_conf {
        uint16_t nb_rx_queue;
        struct lcore_rx_queue rx_queue_list[MAX_RX_QUEUE_PER_LCORE];
        uint16_t tx_queue_id[RTE_MAX_ETHPORTS];
        struct buffer tx_mbufs[RTE_MAX_ETHPORTS];
        struct ipsec_ctx inbound;
        struct ipsec_ctx outbound;
        struct rt_ctx *rt4_ctx;
        struct rt_ctx *rt6_ctx;
        struct {
                struct rte_ip_frag_tbl *tbl;
                struct rte_mempool *pool_indir;
                struct rte_ip_frag_death_row dr;
        } frag;
} __rte_cache_aligned;

static struct lcore_conf lcore_conf[RTE_MAX_LCORE];

static struct rte_eth_conf port_conf = {
        .rxmode = {
                .mq_mode        = RTE_ETH_MQ_RX_RSS,
                .split_hdr_size = 0,
                .offloads = RTE_ETH_RX_OFFLOAD_CHECKSUM,
        },
        .rx_adv_conf = {
                .rss_conf = {
                        .rss_key = NULL,
                        .rss_hf = RTE_ETH_RSS_IP | RTE_ETH_RSS_UDP |
                                RTE_ETH_RSS_TCP | RTE_ETH_RSS_SCTP,
                },
        },
        .txmode = {
                .mq_mode = RTE_ETH_MQ_TX_NONE,
        },
};

struct socket_ctx socket_ctx[NB_SOCKETS];

bool per_port_pool;

/*
 * Determine is multi-segment support required:
 *  - either frame buffer size is smaller then mtu
 *  - or reassemble support is requested
 */
static int
multi_seg_required(void)
{
        return (MTU_TO_FRAMELEN(mtu_size) + RTE_PKTMBUF_HEADROOM >
                frame_buf_size || frag_tbl_sz != 0);
}

static inline void
adjust_ipv4_pktlen(struct rte_mbuf *m, const struct rte_ipv4_hdr *iph,
        uint32_t l2_len)
{
        uint32_t plen, trim;

        plen = rte_be_to_cpu_16(iph->total_length) + l2_len;
        if (plen < m->pkt_len) {
                trim = m->pkt_len - plen;
                rte_pktmbuf_trim(m, trim);
        }
}

static inline void
adjust_ipv6_pktlen(struct rte_mbuf *m, const struct rte_ipv6_hdr *iph,
        uint32_t l2_len)
{
        uint32_t plen, trim;

        plen = rte_be_to_cpu_16(iph->payload_len) + sizeof(*iph) + l2_len;
        if (plen < m->pkt_len) {
                trim = m->pkt_len - plen;
                rte_pktmbuf_trim(m, trim);
        }
}


struct ipsec_core_statistics core_statistics[RTE_MAX_LCORE];

/* Print out statistics on packet distribution */
static void
print_stats_cb(__rte_unused void *param)
{
        uint64_t total_packets_dropped, total_packets_tx, total_packets_rx;
        float burst_percent, rx_per_call, tx_per_call;
        unsigned int coreid;

        total_packets_dropped = 0;
        total_packets_tx = 0;
        total_packets_rx = 0;

        const char clr[] = { 27, '[', '2', 'J', '\0' };
        const char topLeft[] = { 27, '[', '1', ';', '1', 'H', '\0' };

        /* Clear screen and move to top left */
        printf("%s%s", clr, topLeft);

        printf("\nCore statistics ====================================");

        for (coreid = 0; coreid < RTE_MAX_LCORE; coreid++) {
                /* skip disabled cores */
                if (rte_lcore_is_enabled(coreid) == 0)
                        continue;
                burst_percent = (float)(core_statistics[coreid].burst_rx * 100)/
                                        core_statistics[coreid].rx;
                rx_per_call =  (float)(core_statistics[coreid].rx)/
                                       core_statistics[coreid].rx_call;
                tx_per_call =  (float)(core_statistics[coreid].tx)/
                                       core_statistics[coreid].tx_call;
                printf("\nStatistics for core %u ------------------------------"
                           "\nPackets received: %20"PRIu64
                           "\nPackets sent: %24"PRIu64
                           "\nPackets dropped: %21"PRIu64
                           "\nBurst percent: %23.2f"
                           "\nPackets per Rx call: %17.2f"
                           "\nPackets per Tx call: %17.2f",
                           coreid,
                           core_statistics[coreid].rx,
                           core_statistics[coreid].tx,
                           core_statistics[coreid].dropped,
                           burst_percent,
                           rx_per_call,
                           tx_per_call);

                total_packets_dropped += core_statistics[coreid].dropped;
                total_packets_tx += core_statistics[coreid].tx;
                total_packets_rx += core_statistics[coreid].rx;
        }
        printf("\nAggregate statistics ==============================="
                   "\nTotal packets received: %14"PRIu64
                   "\nTotal packets sent: %18"PRIu64
                   "\nTotal packets dropped: %15"PRIu64,
                   total_packets_rx,
                   total_packets_tx,
                   total_packets_dropped);
        printf("\n====================================================\n");

        rte_eal_alarm_set(stats_interval * US_PER_S, print_stats_cb, NULL);
}

static inline void
prepare_one_packet(struct rte_mbuf *pkt, struct ipsec_traffic *t)
{
        const struct rte_ether_hdr *eth;
        const struct rte_ipv4_hdr *iph4;
        const struct rte_ipv6_hdr *iph6;
        const struct rte_udp_hdr *udp;
        uint16_t ip4_hdr_len;
        uint16_t nat_port;

        eth = rte_pktmbuf_mtod(pkt, const struct rte_ether_hdr *);
        if (eth->ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4)) {

                iph4 = (const struct rte_ipv4_hdr *)rte_pktmbuf_adj(pkt,
                        RTE_ETHER_HDR_LEN);
                adjust_ipv4_pktlen(pkt, iph4, 0);

                switch (iph4->next_proto_id) {
                case IPPROTO_ESP:
                        t->ipsec.pkts[(t->ipsec.num)++] = pkt;
                        break;
                case IPPROTO_UDP:
                        if (app_sa_prm.udp_encap == 1) {
                                ip4_hdr_len = ((iph4->version_ihl &
                                        RTE_IPV4_HDR_IHL_MASK) *
                                        RTE_IPV4_IHL_MULTIPLIER);
                                udp = rte_pktmbuf_mtod_offset(pkt,
                                        struct rte_udp_hdr *, ip4_hdr_len);
                                nat_port = rte_cpu_to_be_16(IPSEC_NAT_T_PORT);
                                if (udp->src_port == nat_port ||
                                        udp->dst_port == nat_port){
                                        t->ipsec.pkts[(t->ipsec.num)++] = pkt;
                                        pkt->packet_type |=
                                                MBUF_PTYPE_TUNNEL_ESP_IN_UDP;
                                        break;
                                }
                        }
                /* Fall through */
                default:
                        t->ip4.data[t->ip4.num] = &iph4->next_proto_id;
                        t->ip4.pkts[(t->ip4.num)++] = pkt;
                }
                pkt->l2_len = 0;
                pkt->l3_len = sizeof(*iph4);
                pkt->packet_type |= RTE_PTYPE_L3_IPV4;
                if  (pkt->packet_type & RTE_PTYPE_L4_TCP)
                        pkt->l4_len = sizeof(struct rte_tcp_hdr);
                else if (pkt->packet_type & RTE_PTYPE_L4_UDP)
                        pkt->l4_len = sizeof(struct rte_udp_hdr);
        } else if (eth->ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV6)) {
                int next_proto;
                size_t l3len, ext_len;
                uint8_t *p;

                /* get protocol type */
                iph6 = (const struct rte_ipv6_hdr *)rte_pktmbuf_adj(pkt,
                        RTE_ETHER_HDR_LEN);
                adjust_ipv6_pktlen(pkt, iph6, 0);

                next_proto = iph6->proto;

                /* determine l3 header size up to ESP extension */
                l3len = sizeof(struct ip6_hdr);
                p = rte_pktmbuf_mtod(pkt, uint8_t *);
                while (next_proto != IPPROTO_ESP && l3len < pkt->data_len &&
                        (next_proto = rte_ipv6_get_next_ext(p + l3len,
                                                next_proto, &ext_len)) >= 0)
                        l3len += ext_len;

                /* drop packet when IPv6 header exceeds first segment length */
                if (unlikely(l3len > pkt->data_len)) {
                        free_pkts(&pkt, 1);
                        return;
                }

                switch (next_proto) {
                case IPPROTO_ESP:
                        t->ipsec.pkts[(t->ipsec.num)++] = pkt;
                        break;
                case IPPROTO_UDP:
                        if (app_sa_prm.udp_encap == 1) {
                                udp = rte_pktmbuf_mtod_offset(pkt,
                                        struct rte_udp_hdr *, l3len);
                                nat_port = rte_cpu_to_be_16(IPSEC_NAT_T_PORT);
                                if (udp->src_port == nat_port ||
                                        udp->dst_port == nat_port){
                                        t->ipsec.pkts[(t->ipsec.num)++] = pkt;
                                        pkt->packet_type |=
                                                MBUF_PTYPE_TUNNEL_ESP_IN_UDP;
                                        break;
                                }
                        }
                /* Fall through */
                default:
                        t->ip6.data[t->ip6.num] = &iph6->proto;
                        t->ip6.pkts[(t->ip6.num)++] = pkt;
                }
                pkt->l2_len = 0;
                pkt->l3_len = l3len;
                pkt->packet_type |= RTE_PTYPE_L3_IPV6;
        } else {
                /* Unknown/Unsupported type, drop the packet */
                RTE_LOG(ERR, IPSEC, "Unsupported packet type 0x%x\n",
                        rte_be_to_cpu_16(eth->ether_type));
                free_pkts(&pkt, 1);
                return;
        }

        /* Check if the packet has been processed inline. For inline protocol
         * processed packets, the metadata in the mbuf can be used to identify
         * the security processing done on the packet. The metadata will be
         * used to retrieve the application registered userdata associated
         * with the security session.
         */

        if (pkt->ol_flags & RTE_MBUF_F_RX_SEC_OFFLOAD &&
                        rte_security_dynfield_is_registered()) {
                struct ipsec_sa *sa;
                struct ipsec_mbuf_metadata *priv;
                struct rte_security_ctx *ctx = (struct rte_security_ctx *)
                                                rte_eth_dev_get_sec_ctx(
                                                pkt->port);

                /* Retrieve the userdata registered. Here, the userdata
                 * registered is the SA pointer.
                 */
                sa = (struct ipsec_sa *)rte_security_get_userdata(ctx,
                                *rte_security_dynfield(pkt));
                if (sa == NULL) {
                        /* userdata could not be retrieved */
                        return;
                }

                /* Save SA as priv member in mbuf. This will be used in the
                 * IPsec selector(SP-SA) check.
                 */

                priv = get_priv(pkt);
                priv->sa = sa;
        }
}

static inline void
prepare_traffic(struct rte_mbuf **pkts, struct ipsec_traffic *t,
                uint16_t nb_pkts)
{
        int32_t i;

        t->ipsec.num = 0;
        t->ip4.num = 0;
        t->ip6.num = 0;

        for (i = 0; i < (nb_pkts - PREFETCH_OFFSET); i++) {
                rte_prefetch0(rte_pktmbuf_mtod(pkts[i + PREFETCH_OFFSET],
                                        void *));
                prepare_one_packet(pkts[i], t);
        }
        /* Process left packets */
        for (; i < nb_pkts; i++)
                prepare_one_packet(pkts[i], t);
}

static inline void
prepare_tx_pkt(struct rte_mbuf *pkt, uint16_t port,
                const struct lcore_conf *qconf)
{
        struct ip *ip;
        struct rte_ether_hdr *ethhdr;

        ip = rte_pktmbuf_mtod(pkt, struct ip *);

        ethhdr = (struct rte_ether_hdr *)
                rte_pktmbuf_prepend(pkt, RTE_ETHER_HDR_LEN);

        if (ip->ip_v == IPVERSION) {
                pkt->ol_flags |= qconf->outbound.ipv4_offloads;
                pkt->l3_len = sizeof(struct ip);
                pkt->l2_len = RTE_ETHER_HDR_LEN;

                ip->ip_sum = 0;

                /* calculate IPv4 cksum in SW */
                if ((pkt->ol_flags & RTE_MBUF_F_TX_IP_CKSUM) == 0)
                        ip->ip_sum = rte_ipv4_cksum((struct rte_ipv4_hdr *)ip);

                ethhdr->ether_type = rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4);
        } else {
                pkt->ol_flags |= qconf->outbound.ipv6_offloads;
                pkt->l3_len = sizeof(struct ip6_hdr);
                pkt->l2_len = RTE_ETHER_HDR_LEN;

                ethhdr->ether_type = rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV6);
        }

        memcpy(&ethhdr->src_addr, &ethaddr_tbl[port].src,
                        sizeof(struct rte_ether_addr));
        memcpy(&ethhdr->dst_addr, &ethaddr_tbl[port].dst,
                        sizeof(struct rte_ether_addr));
}

static inline void
prepare_tx_burst(struct rte_mbuf *pkts[], uint16_t nb_pkts, uint16_t port,
                const struct lcore_conf *qconf)
{
        int32_t i;
        const int32_t prefetch_offset = 2;

        for (i = 0; i < (nb_pkts - prefetch_offset); i++) {
                rte_mbuf_prefetch_part2(pkts[i + prefetch_offset]);
                prepare_tx_pkt(pkts[i], port, qconf);
        }
        /* Process left packets */
        for (; i < nb_pkts; i++)
                prepare_tx_pkt(pkts[i], port, qconf);
}

/* Send burst of packets on an output interface */
static inline int32_t
send_burst(struct lcore_conf *qconf, uint16_t n, uint16_t port)
{
        struct rte_mbuf **m_table;
        int32_t ret;
        uint16_t queueid;

        queueid = qconf->tx_queue_id[port];
        m_table = (struct rte_mbuf **)qconf->tx_mbufs[port].m_table;

        prepare_tx_burst(m_table, n, port, qconf);

        ret = rte_eth_tx_burst(port, queueid, m_table, n);

        core_stats_update_tx(ret);

        if (unlikely(ret < n)) {
                do {
                        free_pkts(&m_table[ret], 1);
                } while (++ret < n);
        }

        return 0;
}

/*
 * Helper function to fragment and queue for TX one packet.
 */
static inline uint32_t
send_fragment_packet(struct lcore_conf *qconf, struct rte_mbuf *m,
        uint16_t port, uint8_t proto)
{
        struct buffer *tbl;
        uint32_t len, n;
        int32_t rc;

        tbl =  qconf->tx_mbufs + port;
        len = tbl->len;

        /* free space for new fragments */
        if (len + RTE_LIBRTE_IP_FRAG_MAX_FRAG >=  RTE_DIM(tbl->m_table)) {
                send_burst(qconf, len, port);
                len = 0;
        }

        n = RTE_DIM(tbl->m_table) - len;

        if (proto == IPPROTO_IP)
                rc = rte_ipv4_fragment_packet(m, tbl->m_table + len,
                        n, mtu_size, m->pool, qconf->frag.pool_indir);
        else
                rc = rte_ipv6_fragment_packet(m, tbl->m_table + len,
                        n, mtu_size, m->pool, qconf->frag.pool_indir);

        if (rc >= 0)
                len += rc;
        else
                RTE_LOG(ERR, IPSEC,
                        "%s: failed to fragment packet with size %u, "
                        "error code: %d\n",
                        __func__, m->pkt_len, rte_errno);

        free_pkts(&m, 1);
        return len;
}

/* Enqueue a single packet, and send burst if queue is filled */
static inline int32_t
send_single_packet(struct rte_mbuf *m, uint16_t port, uint8_t proto)
{
        uint32_t lcore_id;
        uint16_t len;
        struct lcore_conf *qconf;

        lcore_id = rte_lcore_id();

        qconf = &lcore_conf[lcore_id];
        len = qconf->tx_mbufs[port].len;

        if (m->pkt_len <= mtu_size) {
                qconf->tx_mbufs[port].m_table[len] = m;
                len++;

        /* need to fragment the packet */
        } else if (frag_tbl_sz > 0)
                len = send_fragment_packet(qconf, m, port, proto);
        else
                free_pkts(&m, 1);

        /* enough pkts to be sent */
        if (unlikely(len == MAX_PKT_BURST)) {
                send_burst(qconf, MAX_PKT_BURST, port);
                len = 0;
        }

        qconf->tx_mbufs[port].len = len;
        return 0;
}

static inline void
inbound_sp_sa(struct sp_ctx *sp, struct sa_ctx *sa, struct traffic_type *ip,
                uint16_t lim, struct ipsec_spd_stats *stats)
{
        struct rte_mbuf *m;
        uint32_t i, j, res, sa_idx;

        if (ip->num == 0 || sp == NULL)
                return;

        rte_acl_classify((struct rte_acl_ctx *)sp, ip->data, ip->res,
                        ip->num, DEFAULT_MAX_CATEGORIES);

        j = 0;
        for (i = 0; i < ip->num; i++) {
                m = ip->pkts[i];
                res = ip->res[i];
                if (res == BYPASS) {
                        ip->pkts[j++] = m;
                        stats->bypass++;
                        continue;
                }
                if (res == DISCARD) {
                        free_pkts(&m, 1);
                        stats->discard++;
                        continue;
                }

                /* Only check SPI match for processed IPSec packets */
                if (i < lim && ((m->ol_flags & RTE_MBUF_F_RX_SEC_OFFLOAD) == 0)) {
                        stats->discard++;
                        free_pkts(&m, 1);
                        continue;
                }

                sa_idx = res - 1;
                if (!inbound_sa_check(sa, m, sa_idx)) {
                        stats->discard++;
                        free_pkts(&m, 1);
                        continue;
                }
                ip->pkts[j++] = m;
                stats->protect++;
        }
        ip->num = j;
}

static void
split46_traffic(struct ipsec_traffic *trf, struct rte_mbuf *mb[], uint32_t num)
{
        uint32_t i, n4, n6;
        struct ip *ip;
        struct rte_mbuf *m;

        n4 = trf->ip4.num;
        n6 = trf->ip6.num;

        for (i = 0; i < num; i++) {

                m = mb[i];
                ip = rte_pktmbuf_mtod(m, struct ip *);

                if (ip->ip_v == IPVERSION) {
                        trf->ip4.pkts[n4] = m;
                        trf->ip4.data[n4] = rte_pktmbuf_mtod_offset(m,
                                        uint8_t *, offsetof(struct ip, ip_p));
                        n4++;
                } else if (ip->ip_v == IP6_VERSION) {
                        trf->ip6.pkts[n6] = m;
                        trf->ip6.data[n6] = rte_pktmbuf_mtod_offset(m,
                                        uint8_t *,
                                        offsetof(struct ip6_hdr, ip6_nxt));
                        n6++;
                } else
                        free_pkts(&m, 1);
        }

        trf->ip4.num = n4;
        trf->ip6.num = n6;
}


static inline void
process_pkts_inbound(struct ipsec_ctx *ipsec_ctx,
                struct ipsec_traffic *traffic)
{
        unsigned int lcoreid = rte_lcore_id();
        uint16_t nb_pkts_in, n_ip4, n_ip6;

        n_ip4 = traffic->ip4.num;
        n_ip6 = traffic->ip6.num;

        if (app_sa_prm.enable == 0) {
                nb_pkts_in = ipsec_inbound(ipsec_ctx, traffic->ipsec.pkts,
                                traffic->ipsec.num, MAX_PKT_BURST);
                split46_traffic(traffic, traffic->ipsec.pkts, nb_pkts_in);
        } else {
                inbound_sa_lookup(ipsec_ctx->sa_ctx, traffic->ipsec.pkts,
                        traffic->ipsec.saptr, traffic->ipsec.num);
                ipsec_process(ipsec_ctx, traffic);
        }

        inbound_sp_sa(ipsec_ctx->sp4_ctx,
                ipsec_ctx->sa_ctx, &traffic->ip4, n_ip4,
                &core_statistics[lcoreid].inbound.spd4);

        inbound_sp_sa(ipsec_ctx->sp6_ctx,
                ipsec_ctx->sa_ctx, &traffic->ip6, n_ip6,
                &core_statistics[lcoreid].inbound.spd6);
}

static inline void
outbound_spd_lookup(struct sp_ctx *sp,
                struct traffic_type *ip,
                struct traffic_type *ipsec,
                struct ipsec_spd_stats *stats)
{
        struct rte_mbuf *m;
        uint32_t i, j, sa_idx;

        if (ip->num == 0 || sp == NULL)
                return;

        rte_acl_classify((struct rte_acl_ctx *)sp, ip->data, ip->res,
                        ip->num, DEFAULT_MAX_CATEGORIES);

        for (i = 0, j = 0; i < ip->num; i++) {
                m = ip->pkts[i];
                sa_idx = ip->res[i] - 1;

                if (unlikely(ip->res[i] == DISCARD)) {
                        free_pkts(&m, 1);

                        stats->discard++;
                } else if (unlikely(ip->res[i] == BYPASS)) {
                        ip->pkts[j++] = m;

                        stats->bypass++;
                } else {
                        ipsec->res[ipsec->num] = sa_idx;
                        ipsec->pkts[ipsec->num++] = m;

                        stats->protect++;
                }
        }
        ip->num = j;
}

static inline void
process_pkts_outbound(struct ipsec_ctx *ipsec_ctx,
                struct ipsec_traffic *traffic)
{
        struct rte_mbuf *m;
        uint16_t idx, nb_pkts_out, i;
        unsigned int lcoreid = rte_lcore_id();

        /* Drop any IPsec traffic from protected ports */
        free_pkts(traffic->ipsec.pkts, traffic->ipsec.num);

        traffic->ipsec.num = 0;

        outbound_spd_lookup(ipsec_ctx->sp4_ctx,
                &traffic->ip4, &traffic->ipsec,
                &core_statistics[lcoreid].outbound.spd4);

        outbound_spd_lookup(ipsec_ctx->sp6_ctx,
                &traffic->ip6, &traffic->ipsec,
                &core_statistics[lcoreid].outbound.spd6);

        if (app_sa_prm.enable == 0) {

                nb_pkts_out = ipsec_outbound(ipsec_ctx, traffic->ipsec.pkts,
                                traffic->ipsec.res, traffic->ipsec.num,
                                MAX_PKT_BURST);

                for (i = 0; i < nb_pkts_out; i++) {
                        m = traffic->ipsec.pkts[i];
                        struct ip *ip = rte_pktmbuf_mtod(m, struct ip *);
                        if (ip->ip_v == IPVERSION) {
                                idx = traffic->ip4.num++;
                                traffic->ip4.pkts[idx] = m;
                        } else {
                                idx = traffic->ip6.num++;
                                traffic->ip6.pkts[idx] = m;
                        }
                }
        } else {
                outbound_sa_lookup(ipsec_ctx->sa_ctx, traffic->ipsec.res,
                        traffic->ipsec.saptr, traffic->ipsec.num);
                ipsec_process(ipsec_ctx, traffic);
        }
}

static inline void
process_pkts_inbound_nosp(struct ipsec_ctx *ipsec_ctx,
                struct ipsec_traffic *traffic)
{
        struct rte_mbuf *m;
        uint32_t nb_pkts_in, i, idx;

        if (app_sa_prm.enable == 0) {

                nb_pkts_in = ipsec_inbound(ipsec_ctx, traffic->ipsec.pkts,
                                traffic->ipsec.num, MAX_PKT_BURST);

                for (i = 0; i < nb_pkts_in; i++) {
                        m = traffic->ipsec.pkts[i];
                        struct ip *ip = rte_pktmbuf_mtod(m, struct ip *);
                        if (ip->ip_v == IPVERSION) {
                                idx = traffic->ip4.num++;
                                traffic->ip4.pkts[idx] = m;
                        } else {
                                idx = traffic->ip6.num++;
                                traffic->ip6.pkts[idx] = m;
                        }
                }
        } else {
                inbound_sa_lookup(ipsec_ctx->sa_ctx, traffic->ipsec.pkts,
                        traffic->ipsec.saptr, traffic->ipsec.num);
                ipsec_process(ipsec_ctx, traffic);
        }
}

static inline void
process_pkts_outbound_nosp(struct ipsec_ctx *ipsec_ctx,
                struct ipsec_traffic *traffic)
{
        struct rte_mbuf *m;
        uint32_t nb_pkts_out, i, n;
        struct ip *ip;

        /* Drop any IPsec traffic from protected ports */
        free_pkts(traffic->ipsec.pkts, traffic->ipsec.num);

        n = 0;

        for (i = 0; i < traffic->ip4.num; i++) {
                traffic->ipsec.pkts[n] = traffic->ip4.pkts[i];
                traffic->ipsec.res[n++] = single_sa_idx;
        }

        for (i = 0; i < traffic->ip6.num; i++) {
                traffic->ipsec.pkts[n] = traffic->ip6.pkts[i];
                traffic->ipsec.res[n++] = single_sa_idx;
        }

        traffic->ip4.num = 0;
        traffic->ip6.num = 0;
        traffic->ipsec.num = n;

        if (app_sa_prm.enable == 0) {

                nb_pkts_out = ipsec_outbound(ipsec_ctx, traffic->ipsec.pkts,
                                traffic->ipsec.res, traffic->ipsec.num,
                                MAX_PKT_BURST);

                /* They all sue the same SA (ip4 or ip6 tunnel) */
                m = traffic->ipsec.pkts[0];
                ip = rte_pktmbuf_mtod(m, struct ip *);
                if (ip->ip_v == IPVERSION) {
                        traffic->ip4.num = nb_pkts_out;
                        for (i = 0; i < nb_pkts_out; i++)
                                traffic->ip4.pkts[i] = traffic->ipsec.pkts[i];
                } else {
                        traffic->ip6.num = nb_pkts_out;
                        for (i = 0; i < nb_pkts_out; i++)
                                traffic->ip6.pkts[i] = traffic->ipsec.pkts[i];
                }
        } else {
                outbound_sa_lookup(ipsec_ctx->sa_ctx, traffic->ipsec.res,
                        traffic->ipsec.saptr, traffic->ipsec.num);
                ipsec_process(ipsec_ctx, traffic);
        }
}

static inline int32_t
get_hop_for_offload_pkt(struct rte_mbuf *pkt, int is_ipv6)
{
        struct ipsec_mbuf_metadata *priv;
        struct ipsec_sa *sa;

        priv = get_priv(pkt);

        sa = priv->sa;
        if (unlikely(sa == NULL)) {
                RTE_LOG(ERR, IPSEC, "SA not saved in private data\n");
                goto fail;
        }

        if (is_ipv6)
                return sa->portid;

        /* else */
        return (sa->portid | RTE_LPM_LOOKUP_SUCCESS);

fail:
        if (is_ipv6)
                return -1;

        /* else */
        return 0;
}

static inline void
route4_pkts(struct rt_ctx *rt_ctx, struct rte_mbuf *pkts[], uint8_t nb_pkts)
{
        uint32_t hop[MAX_PKT_BURST * 2];
        uint32_t dst_ip[MAX_PKT_BURST * 2];
        int32_t pkt_hop = 0;
        uint16_t i, offset;
        uint16_t lpm_pkts = 0;

        unsigned int lcoreid = rte_lcore_id();

        if (nb_pkts == 0)
                return;

        /* Need to do an LPM lookup for non-inline packets. Inline packets will
         * have port ID in the SA
         */

        for (i = 0; i < nb_pkts; i++) {
                if (!(pkts[i]->ol_flags & RTE_MBUF_F_TX_SEC_OFFLOAD)) {
                        /* Security offload not enabled. So an LPM lookup is
                         * required to get the hop
                         */
                        offset = offsetof(struct ip, ip_dst);
                        dst_ip[lpm_pkts] = *rte_pktmbuf_mtod_offset(pkts[i],
                                        uint32_t *, offset);
                        dst_ip[lpm_pkts] = rte_be_to_cpu_32(dst_ip[lpm_pkts]);
                        lpm_pkts++;
                }
        }

        rte_lpm_lookup_bulk((struct rte_lpm *)rt_ctx, dst_ip, hop, lpm_pkts);

        lpm_pkts = 0;

        for (i = 0; i < nb_pkts; i++) {
                if (pkts[i]->ol_flags & RTE_MBUF_F_TX_SEC_OFFLOAD) {
                        /* Read hop from the SA */
                        pkt_hop = get_hop_for_offload_pkt(pkts[i], 0);
                } else {
                        /* Need to use hop returned by lookup */
                        pkt_hop = hop[lpm_pkts++];
                }

                if ((pkt_hop & RTE_LPM_LOOKUP_SUCCESS) == 0) {
                        core_statistics[lcoreid].lpm4.miss++;
                        free_pkts(&pkts[i], 1);
                        continue;
                }
                send_single_packet(pkts[i], pkt_hop & 0xff, IPPROTO_IP);
        }
}

static inline void
route6_pkts(struct rt_ctx *rt_ctx, struct rte_mbuf *pkts[], uint8_t nb_pkts)
{
        int32_t hop[MAX_PKT_BURST * 2];
        uint8_t dst_ip[MAX_PKT_BURST * 2][16];
        uint8_t *ip6_dst;
        int32_t pkt_hop = 0;
        uint16_t i, offset;
        uint16_t lpm_pkts = 0;
        unsigned int lcoreid = rte_lcore_id();

        if (nb_pkts == 0)
                return;

        /* Need to do an LPM lookup for non-inline packets. Inline packets will
         * have port ID in the SA
         */

        for (i = 0; i < nb_pkts; i++) {
                if (!(pkts[i]->ol_flags & RTE_MBUF_F_TX_SEC_OFFLOAD)) {
                        /* Security offload not enabled. So an LPM lookup is
                         * required to get the hop
                         */
                        offset = offsetof(struct ip6_hdr, ip6_dst);
                        ip6_dst = rte_pktmbuf_mtod_offset(pkts[i], uint8_t *,
                                        offset);
                        memcpy(&dst_ip[lpm_pkts][0], ip6_dst, 16);
                        lpm_pkts++;
                }
        }

        rte_lpm6_lookup_bulk_func((struct rte_lpm6 *)rt_ctx, dst_ip, hop,
                        lpm_pkts);

        lpm_pkts = 0;

        for (i = 0; i < nb_pkts; i++) {
                if (pkts[i]->ol_flags & RTE_MBUF_F_TX_SEC_OFFLOAD) {
                        /* Read hop from the SA */
                        pkt_hop = get_hop_for_offload_pkt(pkts[i], 1);
                } else {
                        /* Need to use hop returned by lookup */
                        pkt_hop = hop[lpm_pkts++];
                }

                if (pkt_hop == -1) {
                        core_statistics[lcoreid].lpm6.miss++;
                        free_pkts(&pkts[i], 1);
                        continue;
                }
                send_single_packet(pkts[i], pkt_hop & 0xff, IPPROTO_IPV6);
        }
}

static inline void
process_pkts(struct lcore_conf *qconf, struct rte_mbuf **pkts,
                uint8_t nb_pkts, uint16_t portid)
{
        struct ipsec_traffic traffic;

        prepare_traffic(pkts, &traffic, nb_pkts);

        if (unlikely(single_sa)) {
                if (is_unprotected_port(portid))
                        process_pkts_inbound_nosp(&qconf->inbound, &traffic);
                else
                        process_pkts_outbound_nosp(&qconf->outbound, &traffic);
        } else {
                if (is_unprotected_port(portid))
                        process_pkts_inbound(&qconf->inbound, &traffic);
                else
                        process_pkts_outbound(&qconf->outbound, &traffic);
        }

        route4_pkts(qconf->rt4_ctx, traffic.ip4.pkts, traffic.ip4.num);
        route6_pkts(qconf->rt6_ctx, traffic.ip6.pkts, traffic.ip6.num);
}

static inline void
drain_tx_buffers(struct lcore_conf *qconf)
{
        struct buffer *buf;
        uint32_t portid;

        for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
                buf = &qconf->tx_mbufs[portid];
                if (buf->len == 0)
                        continue;
                send_burst(qconf, buf->len, portid);
                buf->len = 0;
        }
}

static inline void
drain_crypto_buffers(struct lcore_conf *qconf)
{
        uint32_t i;
        struct ipsec_ctx *ctx;

        /* drain inbound buffers*/
        ctx = &qconf->inbound;
        for (i = 0; i != ctx->nb_qps; i++) {
                if (ctx->tbl[i].len != 0)
                        enqueue_cop_burst(ctx->tbl  + i);
        }

        /* drain outbound buffers*/
        ctx = &qconf->outbound;
        for (i = 0; i != ctx->nb_qps; i++) {
                if (ctx->tbl[i].len != 0)
                        enqueue_cop_burst(ctx->tbl  + i);
        }
}

static void
drain_inbound_crypto_queues(const struct lcore_conf *qconf,
                struct ipsec_ctx *ctx)
{
        uint32_t n;
        struct ipsec_traffic trf;
        unsigned int lcoreid = rte_lcore_id();

        if (app_sa_prm.enable == 0) {

                /* dequeue packets from crypto-queue */
                n = ipsec_inbound_cqp_dequeue(ctx, trf.ipsec.pkts,
                        RTE_DIM(trf.ipsec.pkts));

                trf.ip4.num = 0;
                trf.ip6.num = 0;

                /* split traffic by ipv4-ipv6 */
                split46_traffic(&trf, trf.ipsec.pkts, n);
        } else
                ipsec_cqp_process(ctx, &trf);

        /* process ipv4 packets */
        if (trf.ip4.num != 0) {
                inbound_sp_sa(ctx->sp4_ctx, ctx->sa_ctx, &trf.ip4, 0,
                        &core_statistics[lcoreid].inbound.spd4);
                route4_pkts(qconf->rt4_ctx, trf.ip4.pkts, trf.ip4.num);
        }

        /* process ipv6 packets */
        if (trf.ip6.num != 0) {
                inbound_sp_sa(ctx->sp6_ctx, ctx->sa_ctx, &trf.ip6, 0,
                        &core_statistics[lcoreid].inbound.spd6);
                route6_pkts(qconf->rt6_ctx, trf.ip6.pkts, trf.ip6.num);
        }
}

static void
drain_outbound_crypto_queues(const struct lcore_conf *qconf,
                struct ipsec_ctx *ctx)
{
        uint32_t n;
        struct ipsec_traffic trf;

        if (app_sa_prm.enable == 0) {

                /* dequeue packets from crypto-queue */
                n = ipsec_outbound_cqp_dequeue(ctx, trf.ipsec.pkts,
                        RTE_DIM(trf.ipsec.pkts));

                trf.ip4.num = 0;
                trf.ip6.num = 0;

                /* split traffic by ipv4-ipv6 */
                split46_traffic(&trf, trf.ipsec.pkts, n);
        } else
                ipsec_cqp_process(ctx, &trf);

        /* process ipv4 packets */
        if (trf.ip4.num != 0)
                route4_pkts(qconf->rt4_ctx, trf.ip4.pkts, trf.ip4.num);

        /* process ipv6 packets */
        if (trf.ip6.num != 0)
                route6_pkts(qconf->rt6_ctx, trf.ip6.pkts, trf.ip6.num);
}

/* main processing loop */
void
ipsec_poll_mode_worker(void)
{
        struct rte_mbuf *pkts[MAX_PKT_BURST];
        uint32_t lcore_id;
        uint64_t prev_tsc, diff_tsc, cur_tsc;
        int32_t i, nb_rx;
        uint16_t portid;
        uint8_t queueid;
        struct lcore_conf *qconf;
        int32_t rc, socket_id;
        const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1)
                        / US_PER_S * BURST_TX_DRAIN_US;
        struct lcore_rx_queue *rxql;

        prev_tsc = 0;
        lcore_id = rte_lcore_id();
        qconf = &lcore_conf[lcore_id];
        rxql = qconf->rx_queue_list;
        socket_id = rte_lcore_to_socket_id(lcore_id);

        qconf->rt4_ctx = socket_ctx[socket_id].rt_ip4;
        qconf->rt6_ctx = socket_ctx[socket_id].rt_ip6;
        qconf->inbound.sp4_ctx = socket_ctx[socket_id].sp_ip4_in;
        qconf->inbound.sp6_ctx = socket_ctx[socket_id].sp_ip6_in;
        qconf->inbound.sa_ctx = socket_ctx[socket_id].sa_in;
        qconf->inbound.cdev_map = cdev_map_in;
        qconf->inbound.session_pool = socket_ctx[socket_id].session_pool;
        qconf->inbound.session_priv_pool =
                        socket_ctx[socket_id].session_priv_pool;
        qconf->outbound.sp4_ctx = socket_ctx[socket_id].sp_ip4_out;
        qconf->outbound.sp6_ctx = socket_ctx[socket_id].sp_ip6_out;
        qconf->outbound.sa_ctx = socket_ctx[socket_id].sa_out;
        qconf->outbound.cdev_map = cdev_map_out;
        qconf->outbound.session_pool = socket_ctx[socket_id].session_pool;
        qconf->outbound.session_priv_pool =
                        socket_ctx[socket_id].session_priv_pool;
        qconf->frag.pool_indir = socket_ctx[socket_id].mbuf_pool_indir;

        rc = ipsec_sad_lcore_cache_init(app_sa_prm.cache_sz);
        if (rc != 0) {
                RTE_LOG(ERR, IPSEC,
                        "SAD cache init on lcore %u, failed with code: %d\n",
                        lcore_id, rc);
                return;
        }

        if (qconf->nb_rx_queue == 0) {
                RTE_LOG(DEBUG, IPSEC, "lcore %u has nothing to do\n",
                        lcore_id);
                return;
        }

        RTE_LOG(INFO, IPSEC, "entering main loop on lcore %u\n", lcore_id);

        for (i = 0; i < qconf->nb_rx_queue; i++) {
                portid = rxql[i].port_id;
                queueid = rxql[i].queue_id;
                RTE_LOG(INFO, IPSEC,
                        " -- lcoreid=%u portid=%u rxqueueid=%hhu\n",
                        lcore_id, portid, queueid);
        }

        while (!force_quit) {
                cur_tsc = rte_rdtsc();

                /* TX queue buffer drain */
                diff_tsc = cur_tsc - prev_tsc;

                if (unlikely(diff_tsc > drain_tsc)) {
                        drain_tx_buffers(qconf);
                        drain_crypto_buffers(qconf);
                        prev_tsc = cur_tsc;
                }

                for (i = 0; i < qconf->nb_rx_queue; ++i) {

                        /* Read packets from RX queues */
                        portid = rxql[i].port_id;
                        queueid = rxql[i].queue_id;
                        nb_rx = rte_eth_rx_burst(portid, queueid,
                                        pkts, MAX_PKT_BURST);

                        if (nb_rx > 0) {
                                core_stats_update_rx(nb_rx);
                                process_pkts(qconf, pkts, nb_rx, portid);
                        }

                        /* dequeue and process completed crypto-ops */
                        if (is_unprotected_port(portid))
                                drain_inbound_crypto_queues(qconf,
                                        &qconf->inbound);
                        else
                                drain_outbound_crypto_queues(qconf,
                                        &qconf->outbound);
                }
        }
}

int
check_flow_params(uint16_t fdir_portid, uint8_t fdir_qid)
{
        uint16_t i;
        uint16_t portid;
        uint8_t queueid;

        for (i = 0; i < nb_lcore_params; ++i) {
                portid = lcore_params_array[i].port_id;
                if (portid == fdir_portid) {
                        queueid = lcore_params_array[i].queue_id;
                        if (queueid == fdir_qid)
                                break;
                }

                if (i == nb_lcore_params - 1)
                        return -1;
        }

        return 1;
}

static int32_t
check_poll_mode_params(struct eh_conf *eh_conf)
{
        uint8_t lcore;
        uint16_t portid;
        uint16_t i;
        int32_t socket_id;

        if (!eh_conf)
                return -EINVAL;

        if (eh_conf->mode != EH_PKT_TRANSFER_MODE_POLL)
                return 0;

        if (lcore_params == NULL) {
                printf("Error: No port/queue/core mappings\n");
                return -1;
        }

        for (i = 0; i < nb_lcore_params; ++i) {
                lcore = lcore_params[i].lcore_id;
                if (!rte_lcore_is_enabled(lcore)) {
                        printf("error: lcore %hhu is not enabled in "
                                "lcore mask\n", lcore);
                        return -1;
                }
                socket_id = rte_lcore_to_socket_id(lcore);
                if (socket_id != 0 && numa_on == 0) {
                        printf("warning: lcore %hhu is on socket %d "
                                "with numa off\n",
                                lcore, socket_id);
                }
                portid = lcore_params[i].port_id;
                if ((enabled_port_mask & (1 << portid)) == 0) {
                        printf("port %u is not enabled in port mask\n", portid);
                        return -1;
                }
                if (!rte_eth_dev_is_valid_port(portid)) {
                        printf("port %u is not present on the board\n", portid);
                        return -1;
                }
        }
        return 0;
}

static uint8_t
get_port_nb_rx_queues(const uint16_t port)
{
        int32_t queue = -1;
        uint16_t i;

        for (i = 0; i < nb_lcore_params; ++i) {
                if (lcore_params[i].port_id == port &&
                                lcore_params[i].queue_id > queue)
                        queue = lcore_params[i].queue_id;
        }
        return (uint8_t)(++queue);
}

static int32_t
init_lcore_rx_queues(void)
{
        uint16_t i, nb_rx_queue;
        uint8_t lcore;

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

/* display usage */
static void
print_usage(const char *prgname)
{
        fprintf(stderr, "%s [EAL options] --"
                " -p PORTMASK"
                " [-P]"
                " [-u PORTMASK]"
                " [-j FRAMESIZE]"
                " [-l]"
                " [-w REPLAY_WINDOW_SIZE]"
                " [-e]"
                " [-a]"
                " [-c]"
                " [-t STATS_INTERVAL]"
                " [-s NUMBER_OF_MBUFS_IN_PKT_POOL]"
                " -f CONFIG_FILE"
                " --config (port,queue,lcore)[,(port,queue,lcore)]"
                " [--single-sa SAIDX]"
                " [--cryptodev_mask MASK]"
                " [--transfer-mode MODE]"
                " [--event-schedule-type TYPE]"
                " [--" CMD_LINE_OPT_RX_OFFLOAD " RX_OFFLOAD_MASK]"
                " [--" CMD_LINE_OPT_TX_OFFLOAD " TX_OFFLOAD_MASK]"
                " [--" CMD_LINE_OPT_REASSEMBLE " REASSEMBLE_TABLE_SIZE]"
                " [--" CMD_LINE_OPT_MTU " MTU]"
                " [--event-vector]"
                " [--vector-size SIZE]"
                " [--vector-tmo TIMEOUT in ns]"
                "\n\n"
                "  -p PORTMASK: Hexadecimal bitmask of ports to configure\n"
                "  -P : Enable promiscuous mode\n"
                "  -u PORTMASK: Hexadecimal bitmask of unprotected ports\n"
                "  -j FRAMESIZE: Data buffer size, minimum (and default)\n"
                "     value: RTE_MBUF_DEFAULT_BUF_SIZE\n"
                "  -l enables code-path that uses librte_ipsec\n"
                "  -w REPLAY_WINDOW_SIZE specifies IPsec SQN replay window\n"
                "     size for each SA\n"
                "  -e enables ESN\n"
                "  -a enables SA SQN atomic behaviour\n"
                "  -c specifies inbound SAD cache size,\n"
                "     zero value disables the cache (default value: 128)\n"
                "  -t specifies statistics screen update interval,\n"
                "     zero disables statistics screen (default value: 0)\n"
                "  -s number of mbufs in packet pool, if not specified number\n"
                "     of mbufs will be calculated based on number of cores,\n"
                "     ports and crypto queues\n"
                "  -f CONFIG_FILE: Configuration file\n"
                "  --config (port,queue,lcore): Rx queue configuration. In poll\n"
                "                               mode determines which queues from\n"
                "                               which ports are mapped to which cores.\n"
                "                               In event mode this option is not used\n"
                "                               as packets are dynamically scheduled\n"
                "                               to cores by HW.\n"
                "  --single-sa SAIDX: In poll mode use single SA index for\n"
                "                     outbound traffic, bypassing the SP\n"
                "                     In event mode selects driver submode,\n"
                "                     SA index value is ignored\n"
                "  --cryptodev_mask MASK: Hexadecimal bitmask of the crypto\n"
                "                         devices to configure\n"
                "  --transfer-mode MODE\n"
                "               \"poll\"  : Packet transfer via polling (default)\n"
                "               \"event\" : Packet transfer via event device\n"
                "  --event-schedule-type TYPE queue schedule type, used only when\n"
                "                             transfer mode is set to event\n"
                "               \"ordered\"  : Ordered (default)\n"
                "               \"atomic\"   : Atomic\n"
                "               \"parallel\" : Parallel\n"
                "  --" CMD_LINE_OPT_RX_OFFLOAD
                ": bitmask of the RX HW offload capabilities to enable/use\n"
                "                         (RTE_ETH_RX_OFFLOAD_*)\n"
                "  --" CMD_LINE_OPT_TX_OFFLOAD
                ": bitmask of the TX HW offload capabilities to enable/use\n"
                "                         (RTE_ETH_TX_OFFLOAD_*)\n"
                "  --" CMD_LINE_OPT_REASSEMBLE " NUM"
                ": max number of entries in reassemble(fragment) table\n"
                "    (zero (default value) disables reassembly)\n"
                "  --" CMD_LINE_OPT_MTU " MTU"
                ": MTU value on all ports (default value: 1500)\n"
                "    outgoing packets with bigger size will be fragmented\n"
                "    incoming packets with bigger size will be discarded\n"
                "  --" CMD_LINE_OPT_FRAG_TTL " FRAG_TTL_NS"
                ": fragments lifetime in nanoseconds, default\n"
                "    and maximum value is 10.000.000.000 ns (10 s)\n"
                "  --event-vector enables event vectorization\n"
                "  --vector-size Max vector size (default value: 16)\n"
                "  --vector-tmo Max vector timeout in nanoseconds"
                "    (default value: 102400)\n"
                "  --" CMD_LINE_OPT_PER_PORT_POOL " Enable per port mbuf pool\n"
                "  --" CMD_LINE_OPT_VECTOR_POOL_SZ " Vector pool size\n"
                "                    (default value is based on mbuf count)\n"
                "\n",
                prgname);
}

static int
parse_mask(const char *str, uint64_t *val)
{
        char *end;
        unsigned long t;

        errno = 0;
        t = strtoul(str, &end, 0);
        if (errno != 0 || end[0] != 0)
                return -EINVAL;

        *val = t;
        return 0;
}

static int32_t
parse_portmask(const char *portmask)
{
        char *end = NULL;
        unsigned long pm;

        errno = 0;

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

        if ((pm == 0) && errno)
                return -1;

        return pm;
}

static int64_t
parse_decimal(const char *str)
{
        char *end = NULL;
        uint64_t num;

        num = strtoull(str, &end, 10);
        if ((str[0] == '\0') || (end == NULL) || (*end != '\0')
                || num > INT64_MAX)
                return -1;

        return num;
}

static int32_t
parse_config(const char *q_arg)
{
        char s[256];
        const char *p, *p0 = q_arg;
        char *end;
        enum fieldnames {
                FLD_PORT = 0,
                FLD_QUEUE,
                FLD_LCORE,
                _NUM_FLD
        };
        unsigned long int_fld[_NUM_FLD];
        char *str_fld[_NUM_FLD];
        int32_t i;
        uint32_t size;

        nb_lcore_params = 0;

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

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

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

static void
print_app_sa_prm(const struct app_sa_prm *prm)
{
        printf("librte_ipsec usage: %s\n",
                (prm->enable == 0) ? "disabled" : "enabled");

        printf("replay window size: %u\n", prm->window_size);
        printf("ESN: %s\n", (prm->enable_esn == 0) ? "disabled" : "enabled");
        printf("SA flags: %#" PRIx64 "\n", prm->flags);
        printf("Frag TTL: %" PRIu64 " ns\n", frag_ttl_ns);
}

static int
parse_transfer_mode(struct eh_conf *conf, const char *optarg)
{
        if (!strcmp(CMD_LINE_ARG_POLL, optarg))
                conf->mode = EH_PKT_TRANSFER_MODE_POLL;
        else if (!strcmp(CMD_LINE_ARG_EVENT, optarg))
                conf->mode = EH_PKT_TRANSFER_MODE_EVENT;
        else {
                printf("Unsupported packet transfer mode\n");
                return -EINVAL;
        }

        return 0;
}

static int
parse_schedule_type(struct eh_conf *conf, const char *optarg)
{
        struct eventmode_conf *em_conf = NULL;

        /* Get eventmode conf */
        em_conf = conf->mode_params;

        if (!strcmp(CMD_LINE_ARG_ORDERED, optarg))
                em_conf->ext_params.sched_type = RTE_SCHED_TYPE_ORDERED;
        else if (!strcmp(CMD_LINE_ARG_ATOMIC, optarg))
                em_conf->ext_params.sched_type = RTE_SCHED_TYPE_ATOMIC;
        else if (!strcmp(CMD_LINE_ARG_PARALLEL, optarg))
                em_conf->ext_params.sched_type = RTE_SCHED_TYPE_PARALLEL;
        else {
                printf("Unsupported queue schedule type\n");
                return -EINVAL;
        }

        return 0;
}

static int32_t
parse_args(int32_t argc, char **argv, struct eh_conf *eh_conf)
{
        int opt;
        int64_t ret;
        char **argvopt;
        int32_t option_index;
        char *prgname = argv[0];
        int32_t f_present = 0;
        struct eventmode_conf *em_conf = NULL;

        argvopt = argv;

        while ((opt = getopt_long(argc, argvopt, "aelp:Pu:f:j:w:c:t:s:",
                                lgopts, &option_index)) != EOF) {

                switch (opt) {
                case 'p':
                        enabled_port_mask = parse_portmask(optarg);
                        if (enabled_port_mask == 0) {
                                printf("invalid portmask\n");
                                print_usage(prgname);
                                return -1;
                        }
                        break;
                case 'P':
                        printf("Promiscuous mode selected\n");
                        promiscuous_on = 1;
                        break;
                case 'u':
                        unprotected_port_mask = parse_portmask(optarg);
                        if (unprotected_port_mask == 0) {
                                printf("invalid unprotected portmask\n");
                                print_usage(prgname);
                                return -1;
                        }
                        break;
                case 'f':
                        if (f_present == 1) {
                                printf("\"-f\" option present more than "
                                        "once!\n");
                                print_usage(prgname);
                                return -1;
                        }
                        cfgfile = optarg;
                        f_present = 1;
                        break;

                case 's':
                        ret = parse_decimal(optarg);
                        if (ret < 0) {
                                printf("Invalid number of buffers in a pool: "
                                        "%s\n", optarg);
                                print_usage(prgname);
                                return -1;
                        }

                        nb_bufs_in_pool = ret;
                        break;

                case 'j':
                        ret = parse_decimal(optarg);
                        if (ret < RTE_MBUF_DEFAULT_BUF_SIZE ||
                                        ret > UINT16_MAX) {
                                printf("Invalid frame buffer size value: %s\n",
                                        optarg);
                                print_usage(prgname);
                                return -1;
                        }
                        frame_buf_size = ret;
                        printf("Custom frame buffer size %u\n", frame_buf_size);
                        break;
                case 'l':
                        app_sa_prm.enable = 1;
                        break;
                case 'w':
                        app_sa_prm.window_size = parse_decimal(optarg);
                        break;
                case 'e':
                        app_sa_prm.enable_esn = 1;
                        break;
                case 'a':
                        app_sa_prm.enable = 1;
                        app_sa_prm.flags |= RTE_IPSEC_SAFLAG_SQN_ATOM;
                        break;
                case 'c':
                        ret = parse_decimal(optarg);
                        if (ret < 0) {
                                printf("Invalid SA cache size: %s\n", optarg);
                                print_usage(prgname);
                                return -1;
                        }
                        app_sa_prm.cache_sz = ret;
                        break;
                case 't':
                        ret = parse_decimal(optarg);
                        if (ret < 0) {
                                printf("Invalid interval value: %s\n", optarg);
                                print_usage(prgname);
                                return -1;
                        }
                        stats_interval = ret;
                        break;
                case CMD_LINE_OPT_CONFIG_NUM:
                        ret = parse_config(optarg);
                        if (ret) {
                                printf("Invalid config\n");
                                print_usage(prgname);
                                return -1;
                        }
                        break;
                case CMD_LINE_OPT_SINGLE_SA_NUM:
                        ret = parse_decimal(optarg);
                        if (ret == -1 || ret > UINT32_MAX) {
                                printf("Invalid argument[sa_idx]\n");
                                print_usage(prgname);
                                return -1;
                        }

                        /* else */
                        single_sa = 1;
                        single_sa_idx = ret;
                        eh_conf->ipsec_mode = EH_IPSEC_MODE_TYPE_DRIVER;
                        printf("Configured with single SA index %u\n",
                                        single_sa_idx);
                        break;
                case CMD_LINE_OPT_CRYPTODEV_MASK_NUM:
                        ret = parse_portmask(optarg);
                        if (ret == -1) {
                                printf("Invalid argument[portmask]\n");
                                print_usage(prgname);
                                return -1;
                        }

                        /* else */
                        enabled_cryptodev_mask = ret;
                        break;

                case CMD_LINE_OPT_TRANSFER_MODE_NUM:
                        ret = parse_transfer_mode(eh_conf, optarg);
                        if (ret < 0) {
                                printf("Invalid packet transfer mode\n");
                                print_usage(prgname);
                                return -1;
                        }
                        break;

                case CMD_LINE_OPT_SCHEDULE_TYPE_NUM:
                        ret = parse_schedule_type(eh_conf, optarg);
                        if (ret < 0) {
                                printf("Invalid queue schedule type\n");
                                print_usage(prgname);
                                return -1;
                        }
                        break;

                case CMD_LINE_OPT_RX_OFFLOAD_NUM:
                        ret = parse_mask(optarg, &dev_rx_offload);
                        if (ret != 0) {
                                printf("Invalid argument for \'%s\': %s\n",
                                        CMD_LINE_OPT_RX_OFFLOAD, optarg);
                                print_usage(prgname);
                                return -1;
                        }
                        break;
                case CMD_LINE_OPT_TX_OFFLOAD_NUM:
                        ret = parse_mask(optarg, &dev_tx_offload);
                        if (ret != 0) {
                                printf("Invalid argument for \'%s\': %s\n",
                                        CMD_LINE_OPT_TX_OFFLOAD, optarg);
                                print_usage(prgname);
                                return -1;
                        }
                        break;
                case CMD_LINE_OPT_REASSEMBLE_NUM:
                        ret = parse_decimal(optarg);
                        if (ret < 0 || ret > UINT32_MAX) {
                                printf("Invalid argument for \'%s\': %s\n",
                                        CMD_LINE_OPT_REASSEMBLE, optarg);
                                print_usage(prgname);
                                return -1;
                        }
                        frag_tbl_sz = ret;
                        break;
                case CMD_LINE_OPT_MTU_NUM:
                        ret = parse_decimal(optarg);
                        if (ret < 0 || ret > RTE_IPV4_MAX_PKT_LEN) {
                                printf("Invalid argument for \'%s\': %s\n",
                                        CMD_LINE_OPT_MTU, optarg);
                                print_usage(prgname);
                                return -1;
                        }
                        mtu_size = ret;
                        break;
                case CMD_LINE_OPT_FRAG_TTL_NUM:
                        ret = parse_decimal(optarg);
                        if (ret < 0 || ret > MAX_FRAG_TTL_NS) {
                                printf("Invalid argument for \'%s\': %s\n",
                                        CMD_LINE_OPT_MTU, optarg);
                                print_usage(prgname);
                                return -1;
                        }
                        frag_ttl_ns = ret;
                        break;
                case CMD_LINE_OPT_EVENT_VECTOR_NUM:
                        em_conf = eh_conf->mode_params;
                        em_conf->ext_params.event_vector = 1;
                        break;
                case CMD_LINE_OPT_VECTOR_SIZE_NUM:
                        ret = parse_decimal(optarg);

                        if (ret > MAX_PKT_BURST) {
                                printf("Invalid argument for \'%s\': %s\n",
                                        CMD_LINE_OPT_VECTOR_SIZE, optarg);
                                print_usage(prgname);
                                return -1;
                        }
                        em_conf = eh_conf->mode_params;
                        em_conf->ext_params.vector_size = ret;
                        break;
                case CMD_LINE_OPT_VECTOR_TIMEOUT_NUM:
                        ret = parse_decimal(optarg);

                        em_conf = eh_conf->mode_params;
                        em_conf->vector_tmo_ns = ret;
                        break;
                case CMD_LINE_OPT_VECTOR_POOL_SZ_NUM:
                        ret = parse_decimal(optarg);

                        em_conf = eh_conf->mode_params;
                        em_conf->vector_pool_sz = ret;
                        break;
                case CMD_LINE_OPT_PER_PORT_POOL_NUM:
                        per_port_pool = 1;
                        break;
                default:
                        print_usage(prgname);
                        return -1;
                }
        }

        if (f_present == 0) {
                printf("Mandatory option \"-f\" not present\n");
                return -1;
        }

        /* check do we need to enable multi-seg support */
        if (multi_seg_required()) {
                /* legacy mode doesn't support multi-seg */
                app_sa_prm.enable = 1;
                printf("frame buf size: %u, mtu: %u, "
                        "number of reassemble entries: %u\n"
                        "multi-segment support is required\n",
                        frame_buf_size, mtu_size, frag_tbl_sz);
        }

        print_app_sa_prm(&app_sa_prm);

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

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

static void
print_ethaddr(const char *name, const struct rte_ether_addr *eth_addr)
{
        char buf[RTE_ETHER_ADDR_FMT_SIZE];
        rte_ether_format_addr(buf, RTE_ETHER_ADDR_FMT_SIZE, eth_addr);
        printf("%s%s", name, buf);
}

/*
 * Update destination ethaddr for the port.
 */
int
add_dst_ethaddr(uint16_t port, const struct rte_ether_addr *addr)
{
        if (port >= RTE_DIM(ethaddr_tbl))
                return -EINVAL;

        ethaddr_tbl[port].dst = ETHADDR_TO_UINT64(addr);
        return 0;
}

/* Check the link status of all ports in up to 9s, and print them finally */
static void
check_all_ports_link_status(uint32_t port_mask)
{
#define CHECK_INTERVAL 100 /* 100ms */
#define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
        uint16_t portid;
        uint8_t count, all_ports_up, print_flag = 0;
        struct rte_eth_link link;
        int ret;
        char link_status_text[RTE_ETH_LINK_MAX_STR_LEN];

        printf("\nChecking link status");
        fflush(stdout);
        for (count = 0; count <= MAX_CHECK_TIME; count++) {
                all_ports_up = 1;
                RTE_ETH_FOREACH_DEV(portid) {
                        if ((port_mask & (1 << portid)) == 0)
                                continue;
                        memset(&link, 0, sizeof(link));
                        ret = rte_eth_link_get_nowait(portid, &link);
                        if (ret < 0) {
                                all_ports_up = 0;
                                if (print_flag == 1)
                                        printf("Port %u link get failed: %s\n",
                                                portid, rte_strerror(-ret));
                                continue;
                        }
                        /* print link status if flag set */
                        if (print_flag == 1) {
                                rte_eth_link_to_str(link_status_text,
                                        sizeof(link_status_text), &link);
                                printf("Port %d %s\n", portid,
                                       link_status_text);
                                continue;
                        }

                        /* clear all_ports_up flag if any link down */
                        if (link.link_status == RTE_ETH_LINK_DOWN) {
                                all_ports_up = 0;
                                break;
                        }
                }
                /* after finally printing all link status, get out */
                if (print_flag == 1)
                        break;

                if (all_ports_up == 0) {
                        printf(".");
                        fflush(stdout);
                        rte_delay_ms(CHECK_INTERVAL);
                }

                /* set the print_flag if all ports up or timeout */
                if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
                        print_flag = 1;
                        printf("done\n");
                }
        }
}

static int32_t
add_mapping(struct rte_hash *map, const char *str, uint16_t cdev_id,
                uint16_t qp, struct lcore_params *params,
                struct ipsec_ctx *ipsec_ctx,
                const struct rte_cryptodev_capabilities *cipher,
                const struct rte_cryptodev_capabilities *auth,
                const struct rte_cryptodev_capabilities *aead)
{
        int32_t ret = 0;
        unsigned long i;
        struct cdev_key key = { 0 };

        key.lcore_id = params->lcore_id;
        if (cipher)
                key.cipher_algo = cipher->sym.cipher.algo;
        if (auth)
                key.auth_algo = auth->sym.auth.algo;
        if (aead)
                key.aead_algo = aead->sym.aead.algo;

        ret = rte_hash_lookup(map, &key);
        if (ret != -ENOENT)
                return 0;

        for (i = 0; i < ipsec_ctx->nb_qps; i++)
                if (ipsec_ctx->tbl[i].id == cdev_id)
                        break;

        if (i == ipsec_ctx->nb_qps) {
                if (ipsec_ctx->nb_qps == MAX_QP_PER_LCORE) {
                        printf("Maximum number of crypto devices assigned to "
                                "a core, increase MAX_QP_PER_LCORE value\n");
                        return 0;
                }
                ipsec_ctx->tbl[i].id = cdev_id;
                ipsec_ctx->tbl[i].qp = qp;
                ipsec_ctx->nb_qps++;
                printf("%s cdev mapping: lcore %u using cdev %u qp %u "
                                "(cdev_id_qp %lu)\n", str, key.lcore_id,
                                cdev_id, qp, i);
        }

        ret = rte_hash_add_key_data(map, &key, (void *)i);
        if (ret < 0) {
                printf("Failed to insert cdev mapping for (lcore %u, "
                                "cdev %u, qp %u), errno %d\n",
                                key.lcore_id, ipsec_ctx->tbl[i].id,
                                ipsec_ctx->tbl[i].qp, ret);
                return 0;
        }

        return 1;
}

static int32_t
add_cdev_mapping(struct rte_cryptodev_info *dev_info, uint16_t cdev_id,
                uint16_t qp, struct lcore_params *params)
{
        int32_t ret = 0;
        const struct rte_cryptodev_capabilities *i, *j;
        struct rte_hash *map;
        struct lcore_conf *qconf;
        struct ipsec_ctx *ipsec_ctx;
        const char *str;

        qconf = &lcore_conf[params->lcore_id];

        if ((unprotected_port_mask & (1 << params->port_id)) == 0) {
                map = cdev_map_out;
                ipsec_ctx = &qconf->outbound;
                str = "Outbound";
        } else {
                map = cdev_map_in;
                ipsec_ctx = &qconf->inbound;
                str = "Inbound";
        }

        /* Required cryptodevs with operation chaining */
        if (!(dev_info->feature_flags &
                                RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING))
                return ret;

        for (i = dev_info->capabilities;
                        i->op != RTE_CRYPTO_OP_TYPE_UNDEFINED; i++) {
                if (i->op != RTE_CRYPTO_OP_TYPE_SYMMETRIC)
                        continue;

                if (i->sym.xform_type == RTE_CRYPTO_SYM_XFORM_AEAD) {
                        ret |= add_mapping(map, str, cdev_id, qp, params,
                                        ipsec_ctx, NULL, NULL, i);
                        continue;
                }

                if (i->sym.xform_type != RTE_CRYPTO_SYM_XFORM_CIPHER)
                        continue;

                for (j = dev_info->capabilities;
                                j->op != RTE_CRYPTO_OP_TYPE_UNDEFINED; j++) {
                        if (j->op != RTE_CRYPTO_OP_TYPE_SYMMETRIC)
                                continue;

                        if (j->sym.xform_type != RTE_CRYPTO_SYM_XFORM_AUTH)
                                continue;

                        ret |= add_mapping(map, str, cdev_id, qp, params,
                                                ipsec_ctx, i, j, NULL);
                }
        }

        return ret;
}

/* Check if the device is enabled by cryptodev_mask */
static int
check_cryptodev_mask(uint8_t cdev_id)
{
        if (enabled_cryptodev_mask & (1 << cdev_id))
                return 0;

        return -1;
}

static uint16_t
cryptodevs_init(uint16_t req_queue_num)
{
        struct rte_cryptodev_config dev_conf;
        struct rte_cryptodev_qp_conf qp_conf;
        uint16_t idx, max_nb_qps, qp, total_nb_qps, i;
        int16_t cdev_id;
        struct rte_hash_parameters params = { 0 };

        const uint64_t mseg_flag = multi_seg_required() ?
                                RTE_CRYPTODEV_FF_IN_PLACE_SGL : 0;

        params.entries = CDEV_MAP_ENTRIES;
        params.key_len = sizeof(struct cdev_key);
        params.hash_func = rte_jhash;
        params.hash_func_init_val = 0;
        params.socket_id = rte_socket_id();

        params.name = "cdev_map_in";
        cdev_map_in = rte_hash_create(&params);
        if (cdev_map_in == NULL)
                rte_panic("Failed to create cdev_map hash table, errno = %d\n",
                                rte_errno);

        params.name = "cdev_map_out";
        cdev_map_out = rte_hash_create(&params);
        if (cdev_map_out == NULL)
                rte_panic("Failed to create cdev_map hash table, errno = %d\n",
                                rte_errno);

        printf("lcore/cryptodev/qp mappings:\n");

        idx = 0;
        total_nb_qps = 0;
        for (cdev_id = 0; cdev_id < rte_cryptodev_count(); cdev_id++) {
                struct rte_cryptodev_info cdev_info;

                if (check_cryptodev_mask((uint8_t)cdev_id))
                        continue;

                rte_cryptodev_info_get(cdev_id, &cdev_info);

                if ((mseg_flag & cdev_info.feature_flags) != mseg_flag)
                        rte_exit(EXIT_FAILURE,
                                "Device %hd does not support \'%s\' feature\n",
                                cdev_id,
                                rte_cryptodev_get_feature_name(mseg_flag));

                if (nb_lcore_params > cdev_info.max_nb_queue_pairs)
                        max_nb_qps = cdev_info.max_nb_queue_pairs;
                else
                        max_nb_qps = nb_lcore_params;

                qp = 0;
                i = 0;
                while (qp < max_nb_qps && i < nb_lcore_params) {
                        if (add_cdev_mapping(&cdev_info, cdev_id, qp,
                                                &lcore_params[idx]))
                                qp++;
                        idx++;
                        idx = idx % nb_lcore_params;
                        i++;
                }

                qp = RTE_MIN(max_nb_qps, RTE_MAX(req_queue_num, qp));
                if (qp == 0)
                        continue;

                total_nb_qps += qp;
                dev_conf.socket_id = rte_cryptodev_socket_id(cdev_id);
                dev_conf.nb_queue_pairs = qp;
                dev_conf.ff_disable = RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO;

                uint32_t dev_max_sess = cdev_info.sym.max_nb_sessions;
                if (dev_max_sess != 0 &&
                                dev_max_sess < get_nb_crypto_sessions())
                        rte_exit(EXIT_FAILURE,
                                "Device does not support at least %u "
                                "sessions", get_nb_crypto_sessions());

                if (rte_cryptodev_configure(cdev_id, &dev_conf))
                        rte_panic("Failed to initialize cryptodev %u\n",
                                        cdev_id);

                qp_conf.nb_descriptors = CDEV_QUEUE_DESC;
                qp_conf.mp_session =
                        socket_ctx[dev_conf.socket_id].session_pool;
                qp_conf.mp_session_private =
                        socket_ctx[dev_conf.socket_id].session_priv_pool;
                for (qp = 0; qp < dev_conf.nb_queue_pairs; qp++)
                        if (rte_cryptodev_queue_pair_setup(cdev_id, qp,
                                        &qp_conf, dev_conf.socket_id))
                                rte_panic("Failed to setup queue %u for "
                                                "cdev_id %u\n", 0, cdev_id);

                if (rte_cryptodev_start(cdev_id))
                        rte_panic("Failed to start cryptodev %u\n",
                                        cdev_id);
        }

        printf("\n");

        return total_nb_qps;
}

static void
port_init(uint16_t portid, uint64_t req_rx_offloads, uint64_t req_tx_offloads)
{
        struct rte_eth_dev_info dev_info;
        struct rte_eth_txconf *txconf;
        uint16_t nb_tx_queue, nb_rx_queue;
        uint16_t tx_queueid, rx_queueid, queue, lcore_id;
        int32_t ret, socket_id;
        struct lcore_conf *qconf;
        struct rte_ether_addr ethaddr;
        struct rte_eth_conf local_port_conf = port_conf;

        ret = rte_eth_dev_info_get(portid, &dev_info);
        if (ret != 0)
                rte_exit(EXIT_FAILURE,
                        "Error during getting device (port %u) info: %s\n",
                        portid, strerror(-ret));

        /* limit allowed HW offloads, as user requested */
        dev_info.rx_offload_capa &= dev_rx_offload;
        dev_info.tx_offload_capa &= dev_tx_offload;

        printf("Configuring device port %u:\n", portid);

        ret = rte_eth_macaddr_get(portid, &ethaddr);
        if (ret != 0)
                rte_exit(EXIT_FAILURE,
                        "Error getting MAC address (port %u): %s\n",
                        portid, rte_strerror(-ret));

        ethaddr_tbl[portid].src = ETHADDR_TO_UINT64(&ethaddr);
        print_ethaddr("Address: ", &ethaddr);
        printf("\n");

        nb_rx_queue = get_port_nb_rx_queues(portid);
        nb_tx_queue = nb_lcores;

        if (nb_rx_queue > dev_info.max_rx_queues)
                rte_exit(EXIT_FAILURE, "Error: queue %u not available "
                                "(max rx queue is %u)\n",
                                nb_rx_queue, dev_info.max_rx_queues);

        if (nb_tx_queue > dev_info.max_tx_queues)
                rte_exit(EXIT_FAILURE, "Error: queue %u not available "
                                "(max tx queue is %u)\n",
                                nb_tx_queue, dev_info.max_tx_queues);

        printf("Creating queues: nb_rx_queue=%d nb_tx_queue=%u...\n",
                        nb_rx_queue, nb_tx_queue);

        local_port_conf.rxmode.mtu = mtu_size;

        if (multi_seg_required()) {
                local_port_conf.rxmode.offloads |= RTE_ETH_RX_OFFLOAD_SCATTER;
                local_port_conf.txmode.offloads |= RTE_ETH_TX_OFFLOAD_MULTI_SEGS;
        }

        local_port_conf.rxmode.offloads |= req_rx_offloads;
        local_port_conf.txmode.offloads |= req_tx_offloads;

        /* Check that all required capabilities are supported */
        if ((local_port_conf.rxmode.offloads & dev_info.rx_offload_capa) !=
                        local_port_conf.rxmode.offloads)
                rte_exit(EXIT_FAILURE,
                        "Error: port %u required RX offloads: 0x%" PRIx64
                        ", available RX offloads: 0x%" PRIx64 "\n",
                        portid, local_port_conf.rxmode.offloads,
                        dev_info.rx_offload_capa);

        if ((local_port_conf.txmode.offloads & dev_info.tx_offload_capa) !=
                        local_port_conf.txmode.offloads)
                rte_exit(EXIT_FAILURE,
                        "Error: port %u required TX offloads: 0x%" PRIx64
                        ", available TX offloads: 0x%" PRIx64 "\n",
                        portid, local_port_conf.txmode.offloads,
                        dev_info.tx_offload_capa);

        if (dev_info.tx_offload_capa & RTE_ETH_TX_OFFLOAD_MBUF_FAST_FREE)
                local_port_conf.txmode.offloads |=
                        RTE_ETH_TX_OFFLOAD_MBUF_FAST_FREE;

        if (dev_info.tx_offload_capa & RTE_ETH_TX_OFFLOAD_IPV4_CKSUM)
                local_port_conf.txmode.offloads |= RTE_ETH_TX_OFFLOAD_IPV4_CKSUM;

        printf("port %u configuring rx_offloads=0x%" PRIx64
                ", tx_offloads=0x%" PRIx64 "\n",
                portid, local_port_conf.rxmode.offloads,
                local_port_conf.txmode.offloads);

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

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

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

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

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

                /* init TX queue */
                printf("Setup txq=%u,%d,%d\n", lcore_id, tx_queueid, socket_id);

                txconf = &dev_info.default_txconf;
                txconf->offloads = local_port_conf.txmode.offloads;

                ret = rte_eth_tx_queue_setup(portid, tx_queueid, nb_txd,
                                socket_id, txconf);
                if (ret < 0)
                        rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup: "
                                        "err=%d, port=%d\n", ret, portid);

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

                /* Pre-populate pkt offloads based on capabilities */
                qconf->outbound.ipv4_offloads = RTE_MBUF_F_TX_IPV4;
                qconf->outbound.ipv6_offloads = RTE_MBUF_F_TX_IPV6;
                if (local_port_conf.txmode.offloads & RTE_ETH_TX_OFFLOAD_IPV4_CKSUM)
                        qconf->outbound.ipv4_offloads |= RTE_MBUF_F_TX_IP_CKSUM;

                tx_queueid++;

                /* init RX queues */
                for (queue = 0; queue < qconf->nb_rx_queue; ++queue) {
                        struct rte_eth_rxconf rxq_conf;
                        struct rte_mempool *pool;

                        if (portid != qconf->rx_queue_list[queue].port_id)
                                continue;

                        rx_queueid = qconf->rx_queue_list[queue].queue_id;

                        printf("Setup rxq=%d,%d,%d\n", portid, rx_queueid,
                                        socket_id);

                        rxq_conf = dev_info.default_rxconf;
                        rxq_conf.offloads = local_port_conf.rxmode.offloads;

                        if (per_port_pool)
                                pool = socket_ctx[socket_id].mbuf_pool[portid];
                        else
                                pool = socket_ctx[socket_id].mbuf_pool[0];

                        ret = rte_eth_rx_queue_setup(portid, rx_queueid,
                                        nb_rxd, socket_id, &rxq_conf, pool);
                        if (ret < 0)
                                rte_exit(EXIT_FAILURE,
                                        "rte_eth_rx_queue_setup: err=%d, "
                                        "port=%d\n", ret, portid);
                }
        }
        printf("\n");
}

static size_t
max_session_size(void)
{
        size_t max_sz, sz;
        void *sec_ctx;
        int16_t cdev_id, port_id, n;

        max_sz = 0;
        n =  rte_cryptodev_count();
        for (cdev_id = 0; cdev_id != n; cdev_id++) {
                sz = rte_cryptodev_sym_get_private_session_size(cdev_id);
                if (sz > max_sz)
                        max_sz = sz;
                /*
                 * If crypto device is security capable, need to check the
                 * size of security session as well.
                 */

                /* Get security context of the crypto device */
                sec_ctx = rte_cryptodev_get_sec_ctx(cdev_id);
                if (sec_ctx == NULL)
                        continue;

                /* Get size of security session */
                sz = rte_security_session_get_size(sec_ctx);
                if (sz > max_sz)
                        max_sz = sz;
        }

        RTE_ETH_FOREACH_DEV(port_id) {
                if ((enabled_port_mask & (1 << port_id)) == 0)
                        continue;

                sec_ctx = rte_eth_dev_get_sec_ctx(port_id);
                if (sec_ctx == NULL)
                        continue;

                sz = rte_security_session_get_size(sec_ctx);
                if (sz > max_sz)
                        max_sz = sz;
        }

        return max_sz;
}

static void
session_pool_init(struct socket_ctx *ctx, int32_t socket_id, size_t sess_sz)
{
        char mp_name[RTE_MEMPOOL_NAMESIZE];
        struct rte_mempool *sess_mp;
        uint32_t nb_sess;

        snprintf(mp_name, RTE_MEMPOOL_NAMESIZE,
                        "sess_mp_%u", socket_id);
        nb_sess = (get_nb_crypto_sessions() + CDEV_MP_CACHE_SZ *
                rte_lcore_count());
        nb_sess = RTE_MAX(nb_sess, CDEV_MP_CACHE_SZ *
                        CDEV_MP_CACHE_MULTIPLIER);
        sess_mp = rte_cryptodev_sym_session_pool_create(
                        mp_name, nb_sess, sess_sz, CDEV_MP_CACHE_SZ, 0,
                        socket_id);
        ctx->session_pool = sess_mp;

        if (ctx->session_pool == NULL)
                rte_exit(EXIT_FAILURE,
                        "Cannot init session pool on socket %d\n", socket_id);
        else
                printf("Allocated session pool on socket %d\n", socket_id);
}

static void
session_priv_pool_init(struct socket_ctx *ctx, int32_t socket_id,
        size_t sess_sz)
{
        char mp_name[RTE_MEMPOOL_NAMESIZE];
        struct rte_mempool *sess_mp;
        uint32_t nb_sess;

        snprintf(mp_name, RTE_MEMPOOL_NAMESIZE,
                        "sess_mp_priv_%u", socket_id);
        nb_sess = (get_nb_crypto_sessions() + CDEV_MP_CACHE_SZ *
                rte_lcore_count());
        nb_sess = RTE_MAX(nb_sess, CDEV_MP_CACHE_SZ *
                        CDEV_MP_CACHE_MULTIPLIER);
        sess_mp = rte_mempool_create(mp_name,
                        nb_sess,
                        sess_sz,
                        CDEV_MP_CACHE_SZ,
                        0, NULL, NULL, NULL,
                        NULL, socket_id,
                        0);
        ctx->session_priv_pool = sess_mp;

        if (ctx->session_priv_pool == NULL)
                rte_exit(EXIT_FAILURE,
                        "Cannot init session priv pool on socket %d\n",
                        socket_id);
        else
                printf("Allocated session priv pool on socket %d\n",
                        socket_id);
}

static void
pool_init(struct socket_ctx *ctx, int32_t socket_id, int portid,
          uint32_t nb_mbuf)
{
        char s[64];
        int32_t ms;


        /* mbuf_pool is initialised by the pool_init() function*/
        if (socket_ctx[socket_id].mbuf_pool[portid])
                return;

        snprintf(s, sizeof(s), "mbuf_pool_%d_%d", socket_id, portid);
        ctx->mbuf_pool[portid] = rte_pktmbuf_pool_create(s, nb_mbuf,
                                                         MEMPOOL_CACHE_SIZE,
                                                         ipsec_metadata_size(),
                                                         frame_buf_size,
                                                         socket_id);

        /*
         * if multi-segment support is enabled, then create a pool
         * for indirect mbufs. This is not per-port but global.
         */
        ms = multi_seg_required();
        if (ms != 0 && !ctx->mbuf_pool_indir) {
                snprintf(s, sizeof(s), "mbuf_pool_indir_%d", socket_id);
                ctx->mbuf_pool_indir = rte_pktmbuf_pool_create(s, nb_mbuf,
                        MEMPOOL_CACHE_SIZE, 0, 0, socket_id);
        }

        if (ctx->mbuf_pool[portid] == NULL ||
            (ms != 0 && ctx->mbuf_pool_indir == NULL))
                rte_exit(EXIT_FAILURE, "Cannot init mbuf pool on socket %d\n",
                                socket_id);
        else
                printf("Allocated mbuf pool on socket %d\n", socket_id);
}

static inline int
inline_ipsec_event_esn_overflow(struct rte_security_ctx *ctx, uint64_t md)
{
        struct ipsec_sa *sa;

        /* For inline protocol processing, the metadata in the event will
         * uniquely identify the security session which raised the event.
         * Application would then need the userdata it had registered with the
         * security session to process the event.
         */

        sa = (struct ipsec_sa *)rte_security_get_userdata(ctx, md);

        if (sa == NULL) {
                /* userdata could not be retrieved */
                return -1;
        }

        /* Sequence number over flow. SA need to be re-established */
        RTE_SET_USED(sa);
        return 0;
}

static int
inline_ipsec_event_callback(uint16_t port_id, enum rte_eth_event_type type,
                 void *param, void *ret_param)
{
        uint64_t md;
        struct rte_eth_event_ipsec_desc *event_desc = NULL;
        struct rte_security_ctx *ctx = (struct rte_security_ctx *)
                                        rte_eth_dev_get_sec_ctx(port_id);

        RTE_SET_USED(param);

        if (type != RTE_ETH_EVENT_IPSEC)
                return -1;

        event_desc = ret_param;
        if (event_desc == NULL) {
                printf("Event descriptor not set\n");
                return -1;
        }

        md = event_desc->metadata;

        if (event_desc->subtype == RTE_ETH_EVENT_IPSEC_ESN_OVERFLOW)
                return inline_ipsec_event_esn_overflow(ctx, md);
        else if (event_desc->subtype >= RTE_ETH_EVENT_IPSEC_MAX) {
                printf("Invalid IPsec event reported\n");
                return -1;
        }

        return -1;
}

static int
ethdev_reset_event_callback(uint16_t port_id,
                enum rte_eth_event_type type,
                 void *param __rte_unused, void *ret_param __rte_unused)
{
        printf("Reset Event on port id %d type %d\n", port_id, type);
        printf("Force quit application");
        force_quit = true;
        return 0;
}

static uint16_t
rx_callback(__rte_unused uint16_t port, __rte_unused uint16_t queue,
        struct rte_mbuf *pkt[], uint16_t nb_pkts,
        __rte_unused uint16_t max_pkts, void *user_param)
{
        uint64_t tm;
        uint32_t i, k;
        struct lcore_conf *lc;
        struct rte_mbuf *mb;
        struct rte_ether_hdr *eth;

        lc = user_param;
        k = 0;
        tm = 0;

        for (i = 0; i != nb_pkts; i++) {

                mb = pkt[i];
                eth = rte_pktmbuf_mtod(mb, struct rte_ether_hdr *);
                if (eth->ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4)) {

                        struct rte_ipv4_hdr *iph;

                        iph = (struct rte_ipv4_hdr *)(eth + 1);
                        if (rte_ipv4_frag_pkt_is_fragmented(iph)) {

                                mb->l2_len = sizeof(*eth);
                                mb->l3_len = sizeof(*iph);
                                tm = (tm != 0) ? tm : rte_rdtsc();
                                mb = rte_ipv4_frag_reassemble_packet(
                                        lc->frag.tbl, &lc->frag.dr,
                                        mb, tm, iph);

                                if (mb != NULL) {
                                        /* fix ip cksum after reassemble. */
                                        iph = rte_pktmbuf_mtod_offset(mb,
                                                struct rte_ipv4_hdr *,
                                                mb->l2_len);
                                        iph->hdr_checksum = 0;
                                        iph->hdr_checksum = rte_ipv4_cksum(iph);
                                }
                        }
                } else if (eth->ether_type ==
                                rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV6)) {

                        struct rte_ipv6_hdr *iph;
                        struct rte_ipv6_fragment_ext *fh;

                        iph = (struct rte_ipv6_hdr *)(eth + 1);
                        fh = rte_ipv6_frag_get_ipv6_fragment_header(iph);
                        if (fh != NULL) {
                                mb->l2_len = sizeof(*eth);
                                mb->l3_len = (uintptr_t)fh - (uintptr_t)iph +
                                        sizeof(*fh);
                                tm = (tm != 0) ? tm : rte_rdtsc();
                                mb = rte_ipv6_frag_reassemble_packet(
                                        lc->frag.tbl, &lc->frag.dr,
                                        mb, tm, iph, fh);
                                if (mb != NULL)
                                        /* fix l3_len after reassemble. */
                                        mb->l3_len = mb->l3_len - sizeof(*fh);
                        }
                }

                pkt[k] = mb;
                k += (mb != NULL);
        }

        /* some fragments were encountered, drain death row */
        if (tm != 0)
                rte_ip_frag_free_death_row(&lc->frag.dr, 0);

        return k;
}


static int
reassemble_lcore_init(struct lcore_conf *lc, uint32_t cid)
{
        int32_t sid;
        uint32_t i;
        uint64_t frag_cycles;
        const struct lcore_rx_queue *rxq;
        const struct rte_eth_rxtx_callback *cb;

        /* create fragment table */
        sid = rte_lcore_to_socket_id(cid);
        frag_cycles = (rte_get_tsc_hz() + NS_PER_S - 1) /
                NS_PER_S * frag_ttl_ns;

        lc->frag.tbl = rte_ip_frag_table_create(frag_tbl_sz,
                FRAG_TBL_BUCKET_ENTRIES, frag_tbl_sz, frag_cycles, sid);
        if (lc->frag.tbl == NULL) {
                printf("%s(%u): failed to create fragment table of size: %u, "
                        "error code: %d\n",
                        __func__, cid, frag_tbl_sz, rte_errno);
                return -ENOMEM;
        }

        /* setup reassemble RX callbacks for all queues */
        for (i = 0; i != lc->nb_rx_queue; i++) {

                rxq = lc->rx_queue_list + i;
                cb = rte_eth_add_rx_callback(rxq->port_id, rxq->queue_id,
                        rx_callback, lc);
                if (cb == NULL) {
                        printf("%s(%u): failed to install RX callback for "
                                "portid=%u, queueid=%u, error code: %d\n",
                                __func__, cid,
                                rxq->port_id, rxq->queue_id, rte_errno);
                        return -ENOMEM;
                }
        }

        return 0;
}

static int
reassemble_init(void)
{
        int32_t rc;
        uint32_t i, lc;

        rc = 0;
        for (i = 0; i != nb_lcore_params; i++) {
                lc = lcore_params[i].lcore_id;
                rc = reassemble_lcore_init(lcore_conf + lc, lc);
                if (rc != 0)
                        break;
        }

        return rc;
}

static void
create_default_ipsec_flow(uint16_t port_id, uint64_t rx_offloads)
{
        struct rte_flow_action action[2];
        struct rte_flow_item pattern[2];
        struct rte_flow_attr attr = {0};
        struct rte_flow_error err;
        struct rte_flow *flow;
        int ret;

        if (!(rx_offloads & RTE_ETH_RX_OFFLOAD_SECURITY))
                return;

        /* Add the default rte_flow to enable SECURITY for all ESP packets */

        pattern[0].type = RTE_FLOW_ITEM_TYPE_ESP;
        pattern[0].spec = NULL;
        pattern[0].mask = NULL;
        pattern[0].last = NULL;
        pattern[1].type = RTE_FLOW_ITEM_TYPE_END;

        action[0].type = RTE_FLOW_ACTION_TYPE_SECURITY;
        action[0].conf = NULL;
        action[1].type = RTE_FLOW_ACTION_TYPE_END;
        action[1].conf = NULL;

        attr.ingress = 1;

        ret = rte_flow_validate(port_id, &attr, pattern, action, &err);
        if (ret)
                return;

        flow = rte_flow_create(port_id, &attr, pattern, action, &err);
        if (flow == NULL)
                return;

        flow_info_tbl[port_id].rx_def_flow = flow;
        RTE_LOG(INFO, IPSEC,
                "Created default flow enabling SECURITY for all ESP traffic on port %d\n",
                port_id);
}

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

static void
ev_mode_sess_verify(struct ipsec_sa *sa, int nb_sa)
{
        struct rte_ipsec_session *ips;
        int32_t i;

        if (!sa || !nb_sa)
                return;

        for (i = 0; i < nb_sa; i++) {
                ips = ipsec_get_primary_session(&sa[i]);
                if (ips->type != RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL)
                        rte_exit(EXIT_FAILURE, "Event mode supports only "
                                 "inline protocol sessions\n");
        }

}

static int32_t
check_event_mode_params(struct eh_conf *eh_conf)
{
        struct eventmode_conf *em_conf = NULL;
        struct lcore_params *params;
        uint16_t portid;

        if (!eh_conf || !eh_conf->mode_params)
                return -EINVAL;

        /* Get eventmode conf */
        em_conf = eh_conf->mode_params;

        if (eh_conf->mode == EH_PKT_TRANSFER_MODE_POLL &&
            em_conf->ext_params.sched_type != SCHED_TYPE_NOT_SET) {
                printf("error: option --event-schedule-type applies only to "
                       "event mode\n");
                return -EINVAL;
        }

        if (eh_conf->mode != EH_PKT_TRANSFER_MODE_EVENT)
                return 0;

        /* Set schedule type to ORDERED if it wasn't explicitly set by user */
        if (em_conf->ext_params.sched_type == SCHED_TYPE_NOT_SET)
                em_conf->ext_params.sched_type = RTE_SCHED_TYPE_ORDERED;

        /*
         * Event mode currently supports only inline protocol sessions.
         * If there are other types of sessions configured then exit with
         * error.
         */
        ev_mode_sess_verify(sa_in, nb_sa_in);
        ev_mode_sess_verify(sa_out, nb_sa_out);


        /* Option --config does not apply to event mode */
        if (nb_lcore_params > 0) {
                printf("error: option --config applies only to poll mode\n");
                return -EINVAL;
        }

        /*
         * In order to use the same port_init routine for both poll and event
         * modes initialize lcore_params with one queue for each eth port
         */
        lcore_params = lcore_params_array;
        RTE_ETH_FOREACH_DEV(portid) {
                if ((enabled_port_mask & (1 << portid)) == 0)
                        continue;

                params = &lcore_params[nb_lcore_params++];
                params->port_id = portid;
                params->queue_id = 0;
                params->lcore_id = rte_get_next_lcore(0, 0, 1);
        }

        return 0;
}

static void
inline_sessions_free(struct sa_ctx *sa_ctx)
{
        struct rte_ipsec_session *ips;
        struct ipsec_sa *sa;
        int32_t ret;
        uint32_t i;

        if (!sa_ctx)
                return;

        for (i = 0; i < sa_ctx->nb_sa; i++) {

                sa = &sa_ctx->sa[i];
                if (!sa->spi)
                        continue;

                ips = ipsec_get_primary_session(sa);
                if (ips->type != RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL &&
                    ips->type != RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO)
                        continue;

                if (!rte_eth_dev_is_valid_port(sa->portid))
                        continue;

                ret = rte_security_session_destroy(
                                rte_eth_dev_get_sec_ctx(sa->portid),
                                ips->security.ses);
                if (ret)
                        RTE_LOG(ERR, IPSEC, "Failed to destroy security "
                                            "session type %d, spi %d\n",
                                            ips->type, sa->spi);
        }
}

static uint32_t
calculate_nb_mbufs(uint16_t nb_ports, uint16_t nb_crypto_qp, uint32_t nb_rxq,
                uint32_t nb_txq)
{
        return RTE_MAX((nb_rxq * nb_rxd +
                        nb_ports * nb_lcores * MAX_PKT_BURST +
                        nb_ports * nb_txq * nb_txd +
                        nb_lcores * MEMPOOL_CACHE_SIZE +
                        nb_crypto_qp * CDEV_QUEUE_DESC +
                        nb_lcores * frag_tbl_sz *
                        FRAG_TBL_BUCKET_ENTRIES),
                       8192U);
}


static int
handle_telemetry_cmd_ipsec_secgw_stats(const char *cmd __rte_unused,
                const char *params, struct rte_tel_data *data)
{
        uint64_t total_pkts_dropped = 0, total_pkts_tx = 0, total_pkts_rx = 0;
        unsigned int coreid;

        rte_tel_data_start_dict(data);

        if (params) {
                coreid = (uint32_t)atoi(params);
                if (rte_lcore_is_enabled(coreid) == 0)
                        return -EINVAL;

                total_pkts_dropped = core_statistics[coreid].dropped;
                total_pkts_tx = core_statistics[coreid].tx;
                total_pkts_rx = core_statistics[coreid].rx;

        } else {
                for (coreid = 0; coreid < RTE_MAX_LCORE; coreid++) {

                        /* skip disabled cores */
                        if (rte_lcore_is_enabled(coreid) == 0)
                                continue;

                        total_pkts_dropped += core_statistics[coreid].dropped;
                        total_pkts_tx += core_statistics[coreid].tx;
                        total_pkts_rx += core_statistics[coreid].rx;
                }
        }

        /* add telemetry key/values pairs */
        rte_tel_data_add_dict_u64(data, "packets received",
                                total_pkts_rx);

        rte_tel_data_add_dict_u64(data, "packets transmitted",
                                total_pkts_tx);

        rte_tel_data_add_dict_u64(data, "packets dropped",
                                total_pkts_dropped);


        return 0;
}

static void
update_lcore_statistics(struct ipsec_core_statistics *total, uint32_t coreid)
{
        struct ipsec_core_statistics *lcore_stats;

        /* skip disabled cores */
        if (rte_lcore_is_enabled(coreid) == 0)