ip_pipeline/init.c

/*-
 *   BSD LICENSE
 *
 *   Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
 *   All rights reserved.
 *
 *   Redistribution and use in source and binary forms, with or without
 *   modification, are permitted provided that the following conditions
 *   are met:
 *
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in
 *       the documentation and/or other materials provided with the
 *       distribution.
 *     * Neither the name of Intel Corporation nor the names of its
 *       contributors may be used to endorse or promote products derived
 *       from this software without specific prior written permission.
 *
 *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <inttypes.h>
#include <stdio.h>
#include <string.h>
#include <netinet/in.h>
#ifdef RTE_EXEC_ENV_LINUXAPP
#include <linux/if.h>
#include <linux/if_tun.h>
#endif
#include <fcntl.h>
#include <sys/ioctl.h>
#include <unistd.h>

#include <rte_cycles.h>
#include <rte_ethdev.h>
#include <rte_ether.h>
#include <rte_ip.h>
#include <rte_eal.h>
#include <rte_malloc.h>

#include "app.h"
#include "pipeline.h"
#include "pipeline_common_fe.h"
#include "pipeline_master.h"
#include "pipeline_passthrough.h"
#include "pipeline_firewall.h"
#include "pipeline_flow_classification.h"
#include "pipeline_flow_actions.h"
#include "pipeline_routing.h"
#include "thread_fe.h"

#define APP_NAME_SIZE   32

#define APP_RETA_SIZE_MAX     (ETH_RSS_RETA_SIZE_512 / RTE_RETA_GROUP_SIZE)

static void
app_init_core_map(struct app_params *app)
{
    APP_LOG(app, HIGH, "Initializing CPU core map ...");
    app->core_map = cpu_core_map_init(4, 32, 4, 0);

    if (app->core_map == NULL)
        rte_panic("Cannot create CPU core map\n");

    if (app->log_level >= APP_LOG_LEVEL_LOW)
        cpu_core_map_print(app->core_map);
}

/* Core Mask String in Hex Representation */
#define APP_CORE_MASK_STRING_SIZE ((64 * APP_CORE_MASK_SIZE) / 8 * 2 + 1)

static void
app_init_core_mask(struct app_params *app)
{
    uint32_t i;
    char core_mask_str[APP_CORE_MASK_STRING_SIZE];

    for (i = 0; i < app->n_pipelines; i++) {
        struct app_pipeline_params *p = &app->pipeline_params[i];
        int lcore_id;

        lcore_id = cpu_core_map_get_lcore_id(app->core_map,
            p->socket_id,
            p->core_id,
            p->hyper_th_id);

        if (lcore_id < 0)
            rte_panic("Cannot create CPU core mask\n");

        app_core_enable_in_core_mask(app, lcore_id);
    }

    app_core_build_core_mask_string(app, core_mask_str);
    APP_LOG(app, HIGH, "CPU core mask = 0x%s", core_mask_str);
}

static void
app_init_eal(struct app_params *app)
{
    char buffer[256];
    char core_mask_str[APP_CORE_MASK_STRING_SIZE];
    struct app_eal_params *p = &app->eal_params;
    uint32_t n_args = 0;
    uint32_t i;
    int status;

    app->eal_argv[n_args++] = strdup(app->app_name);

    app_core_build_core_mask_string(app, core_mask_str);
    snprintf(buffer, sizeof(buffer), "-c%s", core_mask_str);
    app->eal_argv[n_args++] = strdup(buffer);

    if (p->coremap) {
        snprintf(buffer, sizeof(buffer), "--lcores=%s", p->coremap);
        app->eal_argv[n_args++] = strdup(buffer);
    }

    if (p->master_lcore_present) {
        snprintf(buffer,
            sizeof(buffer),
            "--master-lcore=%" PRIu32,
            p->master_lcore);
        app->eal_argv[n_args++] = strdup(buffer);
    }

    snprintf(buffer, sizeof(buffer), "-n%" PRIu32, p->channels);
    app->eal_argv[n_args++] = strdup(buffer);

    if (p->memory_present) {
        snprintf(buffer, sizeof(buffer), "-m%" PRIu32, p->memory);
        app->eal_argv[n_args++] = strdup(buffer);
    }

    if (p->ranks_present) {
        snprintf(buffer, sizeof(buffer), "-r%" PRIu32, p->ranks);
        app->eal_argv[n_args++] = strdup(buffer);
    }

    for (i = 0; i < APP_MAX_LINKS; i++) {
        if (p->pci_blacklist[i] == NULL)
            break;

        snprintf(buffer,
            sizeof(buffer),
            "--pci-blacklist=%s",
            p->pci_blacklist[i]);
        app->eal_argv[n_args++] = strdup(buffer);
    }

    if (app->port_mask != 0)
        for (i = 0; i < APP_MAX_LINKS; i++) {
            if (p->pci_whitelist[i] == NULL)
                break;

            snprintf(buffer,
                sizeof(buffer),
                "--pci-whitelist=%s",
                p->pci_whitelist[i]);
            app->eal_argv[n_args++] = strdup(buffer);
        }
    else
        for (i = 0; i < app->n_links; i++) {
            char *pci_bdf = app->link_params[i].pci_bdf;

            snprintf(buffer,
                sizeof(buffer),
                "--pci-whitelist=%s",
                pci_bdf);
            app->eal_argv[n_args++] = strdup(buffer);
        }

    for (i = 0; i < APP_MAX_LINKS; i++) {
        if (p->vdev[i] == NULL)
            break;

        snprintf(buffer,
            sizeof(buffer),
            "--vdev=%s",
            p->vdev[i]);
        app->eal_argv[n_args++] = strdup(buffer);
    }

    if ((p->vmware_tsc_map_present) && p->vmware_tsc_map) {
        snprintf(buffer, sizeof(buffer), "--vmware-tsc-map");
        app->eal_argv[n_args++] = strdup(buffer);
    }

    if (p->proc_type) {
        snprintf(buffer,
            sizeof(buffer),
            "--proc-type=%s",
            p->proc_type);
        app->eal_argv[n_args++] = strdup(buffer);
    }

    if (p->syslog) {
        snprintf(buffer, sizeof(buffer), "--syslog=%s", p->syslog);
        app->eal_argv[n_args++] = strdup(buffer);
    }

    if (p->log_level_present) {
        snprintf(buffer,
            sizeof(buffer),
            "--log-level=%" PRIu32,
            p->log_level);
        app->eal_argv[n_args++] = strdup(buffer);
    }

    if ((p->version_present) && p->version) {
        snprintf(buffer, sizeof(buffer), "-v");
        app->eal_argv[n_args++] = strdup(buffer);
    }

    if ((p->help_present) && p->help) {
        snprintf(buffer, sizeof(buffer), "--help");
        app->eal_argv[n_args++] = strdup(buffer);
    }

    if ((p->no_huge_present) && p->no_huge) {
        snprintf(buffer, sizeof(buffer), "--no-huge");
        app->eal_argv[n_args++] = strdup(buffer);
    }

    if ((p->no_pci_present) && p->no_pci) {
        snprintf(buffer, sizeof(buffer), "--no-pci");
        app->eal_argv[n_args++] = strdup(buffer);
    }

    if ((p->no_hpet_present) && p->no_hpet) {
        snprintf(buffer, sizeof(buffer), "--no-hpet");
        app->eal_argv[n_args++] = strdup(buffer);
    }

    if ((p->no_shconf_present) && p->no_shconf) {
        snprintf(buffer, sizeof(buffer), "--no-shconf");
        app->eal_argv[n_args++] = strdup(buffer);
    }

    if (p->add_driver) {
        snprintf(buffer, sizeof(buffer), "-d%s", p->add_driver);
        app->eal_argv[n_args++] = strdup(buffer);
    }

    if (p->socket_mem) {
        snprintf(buffer,
            sizeof(buffer),
            "--socket-mem=%s",
            p->socket_mem);
        app->eal_argv[n_args++] = strdup(buffer);
    }

    if (p->huge_dir) {
        snprintf(buffer, sizeof(buffer), "--huge-dir=%s", p->huge_dir);
        app->eal_argv[n_args++] = strdup(buffer);
    }

    if (p->file_prefix) {
        snprintf(buffer,
            sizeof(buffer),
            "--file-prefix=%s",
            p->file_prefix);
        app->eal_argv[n_args++] = strdup(buffer);
    }

    if (p->base_virtaddr) {
        snprintf(buffer,
            sizeof(buffer),
            "--base-virtaddr=%s",
            p->base_virtaddr);
        app->eal_argv[n_args++] = strdup(buffer);
    }

    if ((p->create_uio_dev_present) && p->create_uio_dev) {
        snprintf(buffer, sizeof(buffer), "--create-uio-dev");
        app->eal_argv[n_args++] = strdup(buffer);
    }

    if (p->vfio_intr) {
        snprintf(buffer,
            sizeof(buffer),
            "--vfio-intr=%s",
            p->vfio_intr);
        app->eal_argv[n_args++] = strdup(buffer);
    }

    if ((p->xen_dom0_present) && (p->xen_dom0)) {
        snprintf(buffer, sizeof(buffer), "--xen-dom0");
        app->eal_argv[n_args++] = strdup(buffer);
    }

    snprintf(buffer, sizeof(buffer), "--");
    app->eal_argv[n_args++] = strdup(buffer);

    app->eal_argc = n_args;

    APP_LOG(app, HIGH, "Initializing EAL ...");
    if (app->log_level >= APP_LOG_LEVEL_LOW) {
        int i;

        fprintf(stdout, "[APP] EAL arguments: \"");
        for (i = 1; i < app->eal_argc; i++)
            fprintf(stdout, "%s ", app->eal_argv[i]);
        fprintf(stdout, "\"\n");
    }

    status = rte_eal_init(app->eal_argc, app->eal_argv);
    if (status < 0)
        rte_panic("EAL init error\n");
}

static void
app_init_mempool(struct app_params *app)
{
    uint32_t i;

    for (i = 0; i < app->n_mempools; i++) {
        struct app_mempool_params *p = &app->mempool_params[i];

        APP_LOG(app, HIGH, "Initializing %s ...", p->name);
        app->mempool[i] = rte_mempool_create(
                p->name,
                p->pool_size,
                p->buffer_size,
                p->cache_size,
                sizeof(struct rte_pktmbuf_pool_private),
                rte_pktmbuf_pool_init, NULL,
                rte_pktmbuf_init, NULL,
                p->cpu_socket_id,
                0);

        if (app->mempool[i] == NULL)
            rte_panic("%s init error\n", p->name);
    }
}

static inline int
app_link_filter_arp_add(struct app_link_params *link)
{
    struct rte_eth_ethertype_filter filter = {
        .ether_type = ETHER_TYPE_ARP,
        .flags = 0,
        .queue = link->arp_q,
    };

    return rte_eth_dev_filter_ctrl(link->pmd_id,
        RTE_ETH_FILTER_ETHERTYPE,
        RTE_ETH_FILTER_ADD,
        &filter);
}

static inline int
app_link_filter_tcp_syn_add(struct app_link_params *link)
{
    struct rte_eth_syn_filter filter = {
        .hig_pri = 1,
        .queue = link->tcp_syn_q,
    };

    return rte_eth_dev_filter_ctrl(link->pmd_id,
        RTE_ETH_FILTER_SYN,
        RTE_ETH_FILTER_ADD,
        &filter);
}

static inline int
app_link_filter_ip_add(struct app_link_params *l1, struct app_link_params *l2)
{
    struct rte_eth_ntuple_filter filter = {
        .flags = RTE_5TUPLE_FLAGS,
        .dst_ip = rte_bswap32(l2->ip),
        .dst_ip_mask = UINT32_MAX, /* Enable */
        .src_ip = 0,
        .src_ip_mask = 0, /* Disable */
        .dst_port = 0,
        .dst_port_mask = 0, /* Disable */
        .src_port = 0,
        .src_port_mask = 0, /* Disable */
        .proto = 0,
        .proto_mask = 0, /* Disable */
        .tcp_flags = 0,
        .priority = 1, /* Lowest */
        .queue = l1->ip_local_q,
    };

    return rte_eth_dev_filter_ctrl(l1->pmd_id,
        RTE_ETH_FILTER_NTUPLE,
        RTE_ETH_FILTER_ADD,
        &filter);
}

static inline int
app_link_filter_ip_del(struct app_link_params *l1, struct app_link_params *l2)
{
    struct rte_eth_ntuple_filter filter = {
        .flags = RTE_5TUPLE_FLAGS,
        .dst_ip = rte_bswap32(l2->ip),
        .dst_ip_mask = UINT32_MAX, /* Enable */
        .src_ip = 0,
        .src_ip_mask = 0, /* Disable */
        .dst_port = 0,
        .dst_port_mask = 0, /* Disable */
        .src_port = 0,
        .src_port_mask = 0, /* Disable */
        .proto = 0,
        .proto_mask = 0, /* Disable */
        .tcp_flags = 0,
        .priority = 1, /* Lowest */
        .queue = l1->ip_local_q,
    };

    return rte_eth_dev_filter_ctrl(l1->pmd_id,
        RTE_ETH_FILTER_NTUPLE,
        RTE_ETH_FILTER_DELETE,
        &filter);
}

static inline int
app_link_filter_tcp_add(struct app_link_params *l1, struct app_link_params *l2)
{
    struct rte_eth_ntuple_filter filter = {
        .flags = RTE_5TUPLE_FLAGS,
        .dst_ip = rte_bswap32(l2->ip),
        .dst_ip_mask = UINT32_MAX, /* Enable */
        .src_ip = 0,
        .src_ip_mask = 0, /* Disable */
        .dst_port = 0,
        .dst_port_mask = 0, /* Disable */
        .src_port = 0,
        .src_port_mask = 0, /* Disable */
        .proto = IPPROTO_TCP,
        .proto_mask = UINT8_MAX, /* Enable */
        .tcp_flags = 0,
        .priority = 2, /* Higher priority than IP */
        .queue = l1->tcp_local_q,
    };

    return rte_eth_dev_filter_ctrl(l1->pmd_id,
        RTE_ETH_FILTER_NTUPLE,
        RTE_ETH_FILTER_ADD,
        &filter);
}

static inline int
app_link_filter_tcp_del(struct app_link_params *l1, struct app_link_params *l2)
{
    struct rte_eth_ntuple_filter filter = {
        .flags = RTE_5TUPLE_FLAGS,
        .dst_ip = rte_bswap32(l2->ip),
        .dst_ip_mask = UINT32_MAX, /* Enable */
        .src_ip = 0,
        .src_ip_mask = 0, /* Disable */
        .dst_port = 0,
        .dst_port_mask = 0, /* Disable */
        .src_port = 0,
        .src_port_mask = 0, /* Disable */
        .proto = IPPROTO_TCP,
        .proto_mask = UINT8_MAX, /* Enable */
        .tcp_flags = 0,
        .priority = 2, /* Higher priority than IP */
        .queue = l1->tcp_local_q,
    };

    return rte_eth_dev_filter_ctrl(l1->pmd_id,
        RTE_ETH_FILTER_NTUPLE,
        RTE_ETH_FILTER_DELETE,
        &filter);
}

static inline int
app_link_filter_udp_add(struct app_link_params *l1, struct app_link_params *l2)
{
    struct rte_eth_ntuple_filter filter = {
        .flags = RTE_5TUPLE_FLAGS,
        .dst_ip = rte_bswap32(l2->ip),
        .dst_ip_mask = UINT32_MAX, /* Enable */
        .src_ip = 0,
        .src_ip_mask = 0, /* Disable */
        .dst_port = 0,
        .dst_port_mask = 0, /* Disable */
        .src_port = 0,
        .src_port_mask = 0, /* Disable */
        .proto = IPPROTO_UDP,
        .proto_mask = UINT8_MAX, /* Enable */
        .tcp_flags = 0,
        .priority = 2, /* Higher priority than IP */
        .queue = l1->udp_local_q,
    };

    return rte_eth_dev_filter_ctrl(l1->pmd_id,
        RTE_ETH_FILTER_NTUPLE,
        RTE_ETH_FILTER_ADD,
        &filter);
}

static inline int
app_link_filter_udp_del(struct app_link_params *l1, struct app_link_params *l2)
{
    struct rte_eth_ntuple_filter filter = {
        .flags = RTE_5TUPLE_FLAGS,
        .dst_ip = rte_bswap32(l2->ip),
        .dst_ip_mask = UINT32_MAX, /* Enable */
        .src_ip = 0,
        .src_ip_mask = 0, /* Disable */
        .dst_port = 0,
        .dst_port_mask = 0, /* Disable */
        .src_port = 0,
        .src_port_mask = 0, /* Disable */
        .proto = IPPROTO_UDP,
        .proto_mask = UINT8_MAX, /* Enable */
        .tcp_flags = 0,
        .priority = 2, /* Higher priority than IP */
        .queue = l1->udp_local_q,
    };

    return rte_eth_dev_filter_ctrl(l1->pmd_id,
        RTE_ETH_FILTER_NTUPLE,
        RTE_ETH_FILTER_DELETE,
        &filter);
}

static inline int
app_link_filter_sctp_add(struct app_link_params *l1, struct app_link_params *l2)
{
    struct rte_eth_ntuple_filter filter = {
        .flags = RTE_5TUPLE_FLAGS,
        .dst_ip = rte_bswap32(l2->ip),
        .dst_ip_mask = UINT32_MAX, /* Enable */
        .src_ip = 0,
        .src_ip_mask = 0, /* Disable */
        .dst_port = 0,
        .dst_port_mask = 0, /* Disable */
        .src_port = 0,
        .src_port_mask = 0, /* Disable */
        .proto = IPPROTO_SCTP,
        .proto_mask = UINT8_MAX, /* Enable */
        .tcp_flags = 0,
        .priority = 2, /* Higher priority than IP */
        .queue = l1->sctp_local_q,
    };

    return rte_eth_dev_filter_ctrl(l1->pmd_id,
        RTE_ETH_FILTER_NTUPLE,
        RTE_ETH_FILTER_ADD,
        &filter);
}

static inline int
app_link_filter_sctp_del(struct app_link_params *l1, struct app_link_params *l2)
{
    struct rte_eth_ntuple_filter filter = {
        .flags = RTE_5TUPLE_FLAGS,
        .dst_ip = rte_bswap32(l2->ip),
        .dst_ip_mask = UINT32_MAX, /* Enable */
        .src_ip = 0,
        .src_ip_mask = 0, /* Disable */
        .dst_port = 0,
        .dst_port_mask = 0, /* Disable */
        .src_port = 0,
        .src_port_mask = 0, /* Disable */
        .proto = IPPROTO_SCTP,
        .proto_mask = UINT8_MAX, /* Enable */
        .tcp_flags = 0,
        .priority = 2, /* Higher priority than IP */
        .queue = l1->sctp_local_q,
    };

    return rte_eth_dev_filter_ctrl(l1->pmd_id,
        RTE_ETH_FILTER_NTUPLE,
        RTE_ETH_FILTER_DELETE,
        &filter);
}

static void
app_link_set_arp_filter(struct app_params *app, struct app_link_params *cp)
{
    if (cp->arp_q != 0) {
        int status = app_link_filter_arp_add(cp);

        APP_LOG(app, LOW, "%s (%" PRIu32 "): "
            "Adding ARP filter (queue = %" PRIu32 ")",
            cp->name, cp->pmd_id, cp->arp_q);

        if (status)
            rte_panic("%s (%" PRIu32 "): "
                "Error adding ARP filter "
                "(queue = %" PRIu32 ") (%" PRId32 ")\n",
                cp->name, cp->pmd_id, cp->arp_q, status);
    }
}

static void
app_link_set_tcp_syn_filter(struct app_params *app, struct app_link_params *cp)
{
    if (cp->tcp_syn_q != 0) {
        int status = app_link_filter_tcp_syn_add(cp);

        APP_LOG(app, LOW, "%s (%" PRIu32 "): "
            "Adding TCP SYN filter (queue = %" PRIu32 ")",
            cp->name, cp->pmd_id, cp->tcp_syn_q);

        if (status)
            rte_panic("%s (%" PRIu32 "): "
                "Error adding TCP SYN filter "
                "(queue = %" PRIu32 ") (%" PRId32 ")\n",
                cp->name, cp->pmd_id, cp->tcp_syn_q,
                status);
    }
}

void
app_link_up_internal(struct app_params *app, struct app_link_params *cp)
{
    uint32_t i;
    int status;

    /* For each link, add filters for IP of current link */
    if (cp->ip != 0) {
        for (i = 0; i < app->n_links; i++) {
            struct app_link_params *p = &app->link_params[i];

            /* IP */
            if (p->ip_local_q != 0) {
                int status = app_link_filter_ip_add(p, cp);

                APP_LOG(app, LOW, "%s (%" PRIu32 "): "
                    "Adding IP filter (queue= %" PRIu32
                    ", IP = 0x%08" PRIx32 ")",
                    p->name, p->pmd_id, p->ip_local_q,
                    cp->ip);

                if (status)
                    rte_panic("%s (%" PRIu32 "): "
                        "Error adding IP "
                        "filter (queue= %" PRIu32 ", "
                        "IP = 0x%08" PRIx32
                        ") (%" PRId32 ")\n",
                        p->name, p->pmd_id,
                        p->ip_local_q, cp->ip, status);
            }

            /* TCP */
            if (p->tcp_local_q != 0) {
                int status = app_link_filter_tcp_add(p, cp);

                APP_LOG(app, LOW, "%s (%" PRIu32 "): "
                    "Adding TCP filter "
                    "(queue = %" PRIu32
                    ", IP = 0x%08" PRIx32 ")",
                    p->name, p->pmd_id, p->tcp_local_q,
                    cp->ip);

                if (status)
                    rte_panic("%s (%" PRIu32 "): "
                        "Error adding TCP "
                        "filter (queue = %" PRIu32 ", "
                        "IP = 0x%08" PRIx32
                        ") (%" PRId32 ")\n",
                        p->name, p->pmd_id,
                        p->tcp_local_q, cp->ip, status);
            }

            /* UDP */
            if (p->udp_local_q != 0) {
                int status = app_link_filter_udp_add(p, cp);

                APP_LOG(app, LOW, "%s (%" PRIu32 "): "
                    "Adding UDP filter "
                    "(queue = %" PRIu32
                    ", IP = 0x%08" PRIx32 ")",
                    p->name, p->pmd_id, p->udp_local_q,
                    cp->ip);

                if (status)
                    rte_panic("%s (%" PRIu32 "): "
                        "Error adding UDP "
                        "filter (queue = %" PRIu32 ", "
                        "IP = 0x%08" PRIx32
                        ") (%" PRId32 ")\n",
                        p->name, p->pmd_id,
                        p->udp_local_q, cp->ip, status);
            }

            /* SCTP */
            if (p->sctp_local_q != 0) {
                int status = app_link_filter_sctp_add(p, cp);

                APP_LOG(app, LOW, "%s (%" PRIu32
                    "): Adding SCTP filter "
                    "(queue = %" PRIu32
                    ", IP = 0x%08" PRIx32 ")",
                    p->name, p->pmd_id, p->sctp_local_q,
                    cp->ip);

                if (status)
                    rte_panic("%s (%" PRIu32 "): "
                        "Error adding SCTP "
                        "filter (queue = %" PRIu32 ", "
                        "IP = 0x%08" PRIx32
                        ") (%" PRId32 ")\n",
                        p->name, p->pmd_id,
                        p->sctp_local_q, cp->ip,
                        status);
            }
        }
    }

    /* PMD link up */
    status = rte_eth_dev_set_link_up(cp->pmd_id);
    if (status < 0)
        rte_panic("%s (%" PRIu32 "): PMD set link up error %"
            PRId32 "\n", cp->name, cp->pmd_id, status);

    /* Mark link as UP */
    cp->state = 1;
}

void
app_link_down_internal(struct app_params *app, struct app_link_params *cp)
{
    uint32_t i;
    int status;

    /* PMD link down */
    status = rte_eth_dev_set_link_down(cp->pmd_id);
    if (status < 0)
        rte_panic("%s (%" PRIu32 "): PMD set link down error %"
            PRId32 "\n", cp->name, cp->pmd_id, status);

    /* Mark link as DOWN */
    cp->state = 0;

    /* Return if current link IP is not valid */
    if (cp->ip == 0)
        return;

    /* For each link, remove filters for IP of current link */
    for (i = 0; i < app->n_links; i++) {
        struct app_link_params *p = &app->link_params[i];

        /* IP */
        if (p->ip_local_q != 0) {
            int status = app_link_filter_ip_del(p, cp);

            APP_LOG(app, LOW, "%s (%" PRIu32
                "): Deleting IP filter "
                "(queue = %" PRIu32 ", IP = 0x%" PRIx32 ")",
                p->name, p->pmd_id, p->ip_local_q, cp->ip);

            if (status)
                rte_panic("%s (%" PRIu32
                    "): Error deleting IP filter "
                    "(queue = %" PRIu32
                    ", IP = 0x%" PRIx32
                    ") (%" PRId32 ")\n",
                    p->name, p->pmd_id, p->ip_local_q,
                    cp->ip, status);
        }

        /* TCP */
        if (p->tcp_local_q != 0) {
            int status = app_link_filter_tcp_del(p, cp);

            APP_LOG(app, LOW, "%s (%" PRIu32
                "): Deleting TCP filter "
                "(queue = %" PRIu32
                ", IP = 0x%" PRIx32 ")",
                p->name, p->pmd_id, p->tcp_local_q, cp->ip);

            if (status)
                rte_panic("%s (%" PRIu32
                    "): Error deleting TCP filter "
                    "(queue = %" PRIu32
                    ", IP = 0x%" PRIx32
                    ") (%" PRId32 ")\n",
                    p->name, p->pmd_id, p->tcp_local_q,
                    cp->ip, status);
        }

        /* UDP */
        if (p->udp_local_q != 0) {
            int status = app_link_filter_udp_del(p, cp);

            APP_LOG(app, LOW, "%s (%" PRIu32
                "): Deleting UDP filter "
                "(queue = %" PRIu32 ", IP = 0x%" PRIx32 ")",
                p->name, p->pmd_id, p->udp_local_q, cp->ip);

            if (status)
                rte_panic("%s (%" PRIu32
                    "): Error deleting UDP filter "
                    "(queue = %" PRIu32
                    ", IP = 0x%" PRIx32
                    ") (%" PRId32 ")\n",
                    p->name, p->pmd_id, p->udp_local_q,
                    cp->ip, status);
        }

        /* SCTP */
        if (p->sctp_local_q != 0) {
            int status = app_link_filter_sctp_del(p, cp);

            APP_LOG(app, LOW, "%s (%" PRIu32
                "): Deleting SCTP filter "
                "(queue = %" PRIu32
                ", IP = 0x%" PRIx32 ")",
                p->name, p->pmd_id, p->sctp_local_q, cp->ip);

            if (status)
                rte_panic("%s (%" PRIu32
                    "): Error deleting SCTP filter "
                    "(queue = %" PRIu32
                    ", IP = 0x%" PRIx32
                    ") (%" PRId32 ")\n",
                    p->name, p->pmd_id, p->sctp_local_q,
                    cp->ip, status);
        }
    }
}

static void
app_check_link(struct app_params *app)
{
    uint32_t all_links_up, i;

    all_links_up = 1;

    for (i = 0; i < app->n_links; i++) {
        struct app_link_params *p = &app->link_params[i];
        struct rte_eth_link link_params;

        memset(&link_params, 0, sizeof(link_params));
        rte_eth_link_get(p->pmd_id, &link_params);

        APP_LOG(app, HIGH, "%s (%" PRIu32 ") (%" PRIu32 " Gbps) %s",
            p->name,
            p->pmd_id,
            link_params.link_speed / 1000,
            link_params.link_status ? "UP" : "DOWN");

        if (link_params.link_status == ETH_LINK_DOWN)
            all_links_up = 0;
    }

    if (all_links_up == 0)
        rte_panic("Some links are DOWN\n");
}

static uint32_t
is_any_swq_frag_or_ras(struct app_params *app)
{
    uint32_t i;

    for (i = 0; i < app->n_pktq_swq; i++) {
        struct app_pktq_swq_params *p = &app->swq_params[i];

        if ((p->ipv4_frag == 1) || (p->ipv6_frag == 1) ||
            (p->ipv4_ras == 1) || (p->ipv6_ras == 1))
            return 1;
    }

    return 0;
}

static void
app_init_link_frag_ras(struct app_params *app)
{
    uint32_t i;

    if (is_any_swq_frag_or_ras(app)) {
        for (i = 0; i < app->n_pktq_hwq_out; i++) {
            struct app_pktq_hwq_out_params *p_txq = &app->hwq_out_params[i];

            p_txq->conf.txq_flags &= ~ETH_TXQ_FLAGS_NOMULTSEGS;
        }
    }
}

static inline int
app_get_cpu_socket_id(uint32_t pmd_id)
{
    int status = rte_eth_dev_socket_id(pmd_id);

    return (status != SOCKET_ID_ANY) ? status : 0;
}

static inline int
app_link_rss_enabled(struct app_link_params *cp)
{
    return (cp->n_rss_qs) ? 1 : 0;
}

static void
app_link_rss_setup(struct app_link_params *cp)
{
    struct rte_eth_dev_info dev_info;
    struct rte_eth_rss_reta_entry64 reta_conf[APP_RETA_SIZE_MAX];
    uint32_t i;
    int status;

    /* Get RETA size */
    memset(&dev_info, 0, sizeof(dev_info));
    rte_eth_dev_info_get(cp->pmd_id, &dev_info);

    if (dev_info.reta_size == 0)
        rte_panic("%s (%u): RSS setup error (null RETA size)\n",
            cp->name, cp->pmd_id);

    if (dev_info.reta_size > ETH_RSS_RETA_SIZE_512)
        rte_panic("%s (%u): RSS setup error (RETA size too big)\n",
            cp->name, cp->pmd_id);

    /* Setup RETA contents */
    memset(reta_conf, 0, sizeof(reta_conf));

    for (i = 0; i < dev_info.reta_size; i++)
        reta_conf[i / RTE_RETA_GROUP_SIZE].mask = UINT64_MAX;

    for (i = 0; i < dev_info.reta_size; i++) {
        uint32_t reta_id = i / RTE_RETA_GROUP_SIZE;
        uint32_t reta_pos = i % RTE_RETA_GROUP_SIZE;
        uint32_t rss_qs_pos = i % cp->n_rss_qs;

        reta_conf[reta_id].reta[reta_pos] =
            (uint16_t) cp->rss_qs[rss_qs_pos];
    }

    /* RETA update */
    status = rte_eth_dev_rss_reta_update(cp->pmd_id,
        reta_conf,
        dev_info.reta_size);
    if (status != 0)
        rte_panic("%s (%u): RSS setup error (RETA update failed)\n",
            cp->name, cp->pmd_id);
}

static void
app_init_link_set_config(struct app_link_params *p)
{
    if (p->n_rss_qs) {
        p->conf.rxmode.mq_mode = ETH_MQ_RX_RSS;
        p->conf.rx_adv_conf.rss_conf.rss_hf = p->rss_proto_ipv4 |
            p->rss_proto_ipv6 |
            p->rss_proto_l2;
    }
}

static void
app_init_link(struct app_params *app)
{
    uint32_t i;

    app_init_link_frag_ras(app);

    for (i = 0; i < app->n_links; i++) {
        struct app_link_params *p_link = &app->link_params[i];
        uint32_t link_id, n_hwq_in, n_hwq_out, j;
        int status;

        sscanf(p_link->name, "LINK%" PRIu32, &link_id);
        n_hwq_in = app_link_get_n_rxq(app, p_link);
        n_hwq_out = app_link_get_n_txq(app, p_link);
        app_init_link_set_config(p_link);

        APP_LOG(app, HIGH, "Initializing %s (%" PRIu32") "
            "(%" PRIu32 " RXQ, %" PRIu32 " TXQ) ...",
            p_link->name,
            p_link->pmd_id,
            n_hwq_in,
            n_hwq_out);

        /* LINK */
        status = rte_eth_dev_configure(
            p_link->pmd_id,
            n_hwq_in,
            n_hwq_out,
            &p_link->conf);
        if (status < 0)
            rte_panic("%s (%" PRId32 "): "
                "init error (%" PRId32 ")\n",
                p_link->name, p_link->pmd_id, status);

        rte_eth_macaddr_get(p_link->pmd_id,
            (struct ether_addr *) &p_link->mac_addr);

        if (p_link->promisc)
            rte_eth_promiscuous_enable(p_link->pmd_id);

        /* RXQ */
        for (j = 0; j < app->n_pktq_hwq_in; j++) {
            struct app_pktq_hwq_in_params *p_rxq =
                &app->hwq_in_params[j];
            uint32_t rxq_link_id, rxq_queue_id;

            sscanf(p_rxq->name, "RXQ%" PRIu32 ".%" PRIu32,
                &rxq_link_id, &rxq_queue_id);
            if (rxq_link_id != link_id)
                continue;

            status = rte_eth_rx_queue_setup(
                p_link->pmd_id,
                rxq_queue_id,
                p_rxq->size,
                app_get_cpu_socket_id(p_link->pmd_id),
                &p_rxq->conf,
                app->mempool[p_rxq->mempool_id]);
            if (status < 0)
                rte_panic("%s (%" PRIu32 "): "
                    "%s init error (%" PRId32 ")\n",
                    p_link->name,
                    p_link->pmd_id,
                    p_rxq->name,
                    status);
        }

        /* TXQ */
        for (j = 0; j < app->n_pktq_hwq_out; j++) {
            struct app_pktq_hwq_out_params *p_txq =
                &app->hwq_out_params[j];
            uint32_t txq_link_id, txq_queue_id;

            sscanf(p_txq->name, "TXQ%" PRIu32 ".%" PRIu32,
                &txq_link_id, &txq_queue_id);
            if (txq_link_id != link_id)
                continue;

            status = rte_eth_tx_queue_setup(
                p_link->pmd_id,
                txq_queue_id,
                p_txq->size,
                app_get_cpu_socket_id(p_link->pmd_id),
                &p_txq->conf);
            if (status < 0)
                rte_panic("%s (%" PRIu32 "): "
                    "%s init error (%" PRId32 ")\n",
                    p_link->name,
                    p_link->pmd_id,
                    p_txq->name,
                    status);
        }

        /* LINK START */
        status = rte_eth_dev_start(p_link->pmd_id);
        if (status < 0)
            rte_panic("Cannot start %s (error %" PRId32 ")\n",
                p_link->name, status);

        /* LINK FILTERS */
        app_link_set_arp_filter(app, p_link);
        app_link_set_tcp_syn_filter(app, p_link);
        if (app_link_rss_enabled(p_link))
            app_link_rss_setup(p_link);

        /* LINK UP */
        app_link_up_internal(app, p_link);
    }

    app_check_link(app);
}

static void
app_init_swq(struct app_params *app)
{
    uint32_t i;

    for (i = 0; i < app->n_pktq_swq; i++) {
        struct app_pktq_swq_params *p = &app->swq_params[i];
        unsigned flags = 0;

        if (app_swq_get_readers(app, p) == 1)
            flags |= RING_F_SC_DEQ;
        if (app_swq_get_writers(app, p) == 1)
            flags |= RING_F_SP_ENQ;

        APP_LOG(app, HIGH, "Initializing %s...", p->name);
        app->swq[i] = rte_ring_create(
                p->name,
                p->size,
                p->cpu_socket_id,
                flags);

        if (app->swq[i] == NULL)
            rte_panic("%s init error\n", p->name);
    }
}

static void
app_init_tm(struct app_params *app)
{
    uint32_t i;

    for (i = 0; i < app->n_pktq_tm; i++) {
        struct app_pktq_tm_params *p_tm = &app->tm_params[i];
        struct app_link_params *p_link;
        struct rte_eth_link link_eth_params;
        struct rte_sched_port *sched;
        uint32_t n_subports, subport_id;
        int status;

        p_link = app_get_link_for_tm(app, p_tm);
        /* LINK */
        rte_eth_link_get(p_link->pmd_id, &link_eth_params);

        /* TM */
        p_tm->sched_port_params.name = p_tm->name;
        p_tm->sched_port_params.socket =
            app_get_cpu_socket_id(p_link->pmd_id);
        p_tm->sched_port_params.rate =
            (uint64_t) link_eth_params.link_speed * 1000 * 1000 / 8;

        APP_LOG(app, HIGH, "Initializing %s ...", p_tm->name);
        sched = rte_sched_port_config(&p_tm->sched_port_params);
        if (sched == NULL)
            rte_panic("%s init error\n", p_tm->name);
        app->tm[i] = sched;

        /* Subport */
        n_subports = p_tm->sched_port_params.n_subports_per_port;
        for (subport_id = 0; subport_id < n_subports; subport_id++) {
            uint32_t n_pipes_per_subport, pipe_id;

            status = rte_sched_subport_config(sched,
                subport_id,
                &p_tm->sched_subport_params[subport_id]);
            if (status)
                rte_panic("%s subport %" PRIu32
                    " init error (%" PRId32 ")\n",
                    p_tm->name, subport_id, status);

            /* Pipe */
            n_pipes_per_subport =
                p_tm->sched_port_params.n_pipes_per_subport;
            for (pipe_id = 0;
                pipe_id < n_pipes_per_subport;
                pipe_id++) {
                int profile_id = p_tm->sched_pipe_to_profile[
                    subport_id * APP_MAX_SCHED_PIPES +
                    pipe_id];

                if (profile_id == -1)
                    continue;

                status = rte_sched_pipe_config(sched,
                    subport_id,
                    pipe_id,
                    profile_id);
                if (status)
                    rte_panic("%s subport %" PRIu32
                        " pipe %" PRIu32
                        " (profile %" PRId32 ") "
                        "init error (% " PRId32 ")\n",
                        p_tm->name, subport_id, pipe_id,
                        profile_id, status);
            }
        }
    }
}

#ifndef RTE_EXEC_ENV_LINUXAPP
static void
app_init_tap(struct app_params *app) {
    if (app->n_pktq_tap == 0)
        return;

    rte_panic("TAP device not supported.\n");
}
#else
static void
app_init_tap(struct app_params *app)
{
    uint32_t i;

    for (i = 0; i < app->n_pktq_tap; i++) {
        struct app_pktq_tap_params *p_tap = &app->tap_params[i];
        struct ifreq ifr;
        int fd, status;

        APP_LOG(app, HIGH, "Initializing %s ...", p_tap->name);

        fd = open("/dev/net/tun", O_RDWR | O_NONBLOCK);
        if (fd < 0)
            rte_panic("Cannot open file /dev/net/tun\n");

        memset(&ifr, 0, sizeof(ifr));
        ifr.ifr_flags = IFF_TAP | IFF_NO_PI; /* No packet information */
        snprintf(ifr.ifr_name, IFNAMSIZ, "%s", p_tap->name);

        status = ioctl(fd, TUNSETIFF, (void *) &ifr);
        if (status < 0)
            rte_panic("TAP setup error\n");

        app->tap[i] = fd;
    }
}
#endif

#ifdef RTE_LIBRTE_KNI
static int
kni_config_network_interface(uint8_t port_id, uint8_t if_up) {
    int ret = 0;

    if (port_id >= rte_eth_dev_count())
        return -EINVAL;

    ret = (if_up) ?
        rte_eth_dev_set_link_up(port_id) :
        rte_eth_dev_set_link_down(port_id);

    return ret;
}

static int
kni_change_mtu(uint8_t port_id, unsigned new_mtu) {
    int ret;

    if (port_id >= rte_eth_dev_count())
        return -EINVAL;

    if (new_mtu > ETHER_MAX_LEN)
        return -EINVAL;

    /* Set new MTU */
    ret = rte_eth_dev_set_mtu(port_id, new_mtu);
    if (ret < 0)
        return ret;

    return 0;
}
#endif /* RTE_LIBRTE_KNI */

#ifndef RTE_LIBRTE_KNI
static void
app_init_kni(struct app_params *app) {
    if (app->n_pktq_kni == 0)
        return;

    rte_panic("Can not init KNI without librte_kni support.\n");
}
#else
static void
app_init_kni(struct app_params *app) {
    uint32_t i;

    if (app->n_pktq_kni == 0)
        return;

    rte_kni_init(app->n_pktq_kni);

    for (i = 0; i < app->n_pktq_kni; i++) {
        struct app_pktq_kni_params *p_kni = &app->kni_params[i];
        struct app_link_params *p_link;
        struct rte_eth_dev_info dev_info;
        struct app_mempool_params *mempool_params;
        struct rte_mempool *mempool;
        struct rte_kni_conf conf;
        struct rte_kni_ops ops;

        /* LINK */
        p_link = app_get_link_for_kni(app, p_kni);
        memset(&dev_info, 0, sizeof(dev_info));
        rte_eth_dev_info_get(p_link->pmd_id, &dev_info);

        /* MEMPOOL */
        mempool_params = &app->mempool_params[p_kni->mempool_id];
        mempool = app->mempool[p_kni->mempool_id];

        /* KNI */
        memset(&conf, 0, sizeof(conf));
        snprintf(conf.name, RTE_KNI_NAMESIZE, "%s", p_kni->name);
        conf.force_bind = p_kni->force_bind;
        if (conf.force_bind) {
            int lcore_id;

            lcore_id = cpu_core_map_get_lcore_id(app->core_map,
                p_kni->socket_id,
                p_kni->core_id,
                p_kni->hyper_th_id);

            if (lcore_id < 0)
                rte_panic("%s invalid CPU core\n", p_kni->name);

            conf.core_id = (uint32_t) lcore_id;
        }
        conf.group_id = p_link->pmd_id;
        conf.mbuf_size = mempool_params->buffer_size;
        conf.addr = dev_info.pci_dev->addr;
        conf.id = dev_info.pci_dev->id;

        memset(&ops, 0, sizeof(ops));
        ops.port_id = (uint8_t) p_link->pmd_id;
        ops.change_mtu = kni_change_mtu;
        ops.config_network_if = kni_config_network_interface;

        APP_LOG(app, HIGH, "Initializing %s ...", p_kni->name);
        app->kni[i] = rte_kni_alloc(mempool, &conf, &ops);
        if (!app->kni[i])
            rte_panic("%s init error\n", p_kni->name);
    }
}
#endif /* RTE_LIBRTE_KNI */

static void
app_init_msgq(struct app_params *app)
{
    uint32_t i;

    for (i = 0; i < app->n_msgq; i++) {
        struct app_msgq_params *p = &app->msgq_params[i];

        APP_LOG(app, HIGH, "Initializing %s ...", p->name);
        app->msgq[i] = rte_ring_create(
                p->name,
                p->size,
                p->cpu_socket_id,
                RING_F_SP_ENQ | RING_F_SC_DEQ);

        if (app->msgq[i] == NULL)
            rte_panic("%s init error\n", p->name);
    }
}

void app_pipeline_params_get(struct app_params *app,
    struct app_pipeline_params *p_in,
    struct pipeline_params *p_out)
{
    uint32_t i;

    snprintf(p_out->name, PIPELINE_NAME_SIZE, "%s", p_in->name);

    snprintf(p_out->type, PIPELINE_TYPE_SIZE, "%s", p_in->type);

    p_out->socket_id = (int) p_in->socket_id;

    p_out->log_level = app->log_level;

    /* pktq_in */
    p_out->n_ports_in = p_in->n_pktq_in;
    for (i = 0; i < p_in->n_pktq_in; i++) {
        struct app_pktq_in_params *in = &p_in->pktq_in[i];
        struct pipeline_port_in_params *out = &p_out->port_in[i];

        switch (in->type) {
        case APP_PKTQ_IN_HWQ:
        {
            struct app_pktq_hwq_in_params *p_hwq_in =
                &app->hwq_in_params[in->id];
            struct app_link_params *p_link =
                app_get_link_for_rxq(app, p_hwq_in);
            uint32_t rxq_link_id, rxq_queue_id;

            sscanf(p_hwq_in->name, "RXQ%" SCNu32 ".%" SCNu32,
                &rxq_link_id,
                &rxq_queue_id);

            out->type = PIPELINE_PORT_IN_ETHDEV_READER;
            out->params.ethdev.port_id = p_link->pmd_id;
            out->params.ethdev.queue_id = rxq_queue_id;
            out->burst_size = p_hwq_in->burst;
            break;
        }
        case APP_PKTQ_IN_SWQ:
        {
            struct app_pktq_swq_params *swq_params = &app->swq_params[in->id];

            if ((swq_params->ipv4_frag == 0) && (swq_params->ipv6_frag == 0)) {
                if (app_swq_get_readers(app, swq_params) == 1) {
                    out->type = PIPELINE_PORT_IN_RING_READER;
                    out->params.ring.ring = app->swq[in->id];
                    out->burst_size = app->swq_params[in->id].burst_read;
                } else {
                    out->type = PIPELINE_PORT_IN_RING_MULTI_READER;
                    out->params.ring_multi.ring = app->swq[in->id];
                    out->burst_size = swq_params->burst_read;
                }
            } else {
                if (swq_params->ipv4_frag == 1) {
                    struct rte_port_ring_reader_ipv4_frag_params *params =
                        &out->params.ring_ipv4_frag;

                    out->type = PIPELINE_PORT_IN_RING_READER_IPV4_FRAG;
                    params->ring = app->swq[in->id];
                    params->mtu = swq_params->mtu;
                    params->metadata_size = swq_params->metadata_size;
                    params->pool_direct =
                        app->mempool[swq_params->mempool_direct_id];
                    params->pool_indirect =
                        app->mempool[swq_params->mempool_indirect_id];
                    out->burst_size = swq_params->burst_read;
                } else {
                    struct rte_port_ring_reader_ipv6_frag_params *params =
                        &out->params.ring_ipv6_frag;

                    out->type = PIPELINE_PORT_IN_RING_READER_IPV6_FRAG;
                    params->ring = app->swq[in->id];
                    params->mtu = swq_params->mtu;
                    params->metadata_size = swq_params->metadata_size;
                    params->pool_direct =
                        app->mempool[swq_params->mempool_direct_id];
                    params->pool_indirect =
                        app->mempool[swq_params->mempool_indirect_id];
                    out->burst_size = swq_params->burst_read;
                }
            }
            break;
        }
        case APP_PKTQ_IN_TM:
        {
            out->type = PIPELINE_PORT_IN_SCHED_READER;
            out->params.sched.sched = app->tm[in->id];
            out->burst_size = app->tm_params[in->id].burst_read;
            break;
        }
#ifdef RTE_EXEC_ENV_LINUXAPP
        case APP_PKTQ_IN_TAP:
        {
            struct app_pktq_tap_params *tap_params =
                &app->tap_params[in->id];
            struct app_mempool_params *mempool_params =
                &app->mempool_params[tap_params->mempool_id];
            struct rte_mempool *mempool =
                app->mempool[tap_params->mempool_id];

            out->type = PIPELINE_PORT_IN_FD_READER;
            out->params.fd.fd = app->tap[in->id];
            out->params.fd.mtu = mempool_params->buffer_size;
            out->params.fd.mempool = mempool;
            out->burst_size = app->tap_params[in->id].burst_read;
            break;
        }
#endif
#ifdef RTE_LIBRTE_KNI
        case APP_PKTQ_IN_KNI:
        {
            out->type = PIPELINE_PORT_IN_KNI_READER;
            out->params.kni.kni = app->kni[in->id];
            out->burst_size = app->kni_params[in->id].burst_read;
            break;
        }
#endif /* RTE_LIBRTE_KNI */
        case APP_PKTQ_IN_SOURCE:
        {
            uint32_t mempool_id =
                app->source_params[in->id].mempool_id;

            out->type = PIPELINE_PORT_IN_SOURCE;
            out->params.source.mempool = app->mempool[mempool_id];
            out->burst_size = app->source_params[in->id].burst;
            out->params.source.file_name =
                app->source_params[in->id].file_name;
            out->params.source.n_bytes_per_pkt =
                app->source_params[in->id].n_bytes_per_pkt;
            break;
        }
        default:
            break;
        }
    }

    /* pktq_out */
    p_out->n_ports_out = p_in->n_pktq_out;
    for (i = 0; i < p_in->n_pktq_out; i++) {
        struct app_pktq_out_params *in = &p_in->pktq_out[i];
        struct pipeline_port_out_params *out = &p_out->port_out[i];

        switch (in->type) {
        case APP_PKTQ_OUT_HWQ:
        {
            struct app_pktq_hwq_out_params *p_hwq_out =
                &app->hwq_out_params[in->id];
            struct app_link_params *p_link =
                app_get_link_for_txq(app, p_hwq_out);
            uint32_t txq_link_id, txq_queue_id;

            sscanf(p_hwq_out->name,
                "TXQ%" SCNu32 ".%" SCNu32,
                &txq_link_id,
                &txq_queue_id);

            if (p_hwq_out->dropless == 0) {
                struct rte_port_ethdev_writer_params *params =
                    &out->params.ethdev;

                out->type = PIPELINE_PORT_OUT_ETHDEV_WRITER;
                params->port_id = p_link->pmd_id;
                params->queue_id = txq_queue_id;
                params->tx_burst_sz =
                    app->hwq_out_params[in->id].burst;
            } else {
                struct rte_port_ethdev_writer_nodrop_params
                    *params = &out->params.ethdev_nodrop;

                out->type =
                    PIPELINE_PORT_OUT_ETHDEV_WRITER_NODROP;
                params->port_id = p_link->pmd_id;
                params->queue_id = txq_queue_id;
                params->tx_burst_sz = p_hwq_out->burst;
                params->n_retries = p_hwq_out->n_retries;
            }
            break;
        }
        case APP_PKTQ_OUT_SWQ:
        {
            struct app_pktq_swq_params *swq_params = &app->swq_params[in->id];

            if ((swq_params->ipv4_ras == 0) && (swq_params->ipv6_ras == 0)) {
                if (app_swq_get_writers(app, swq_params) == 1) {
                    if (app->swq_params[in->id].dropless == 0) {
                        struct rte_port_ring_writer_params *params =
                            &out->params.ring;

                        out->type = PIPELINE_PORT_OUT_RING_WRITER;
                        params->ring = app->swq[in->id];
                        params->tx_burst_sz =
                            app->swq_params[in->id].burst_write;
                    } else {
                        struct rte_port_ring_writer_nodrop_params
                            *params = &out->params.ring_nodrop;

                        out->type =
                            PIPELINE_PORT_OUT_RING_WRITER_NODROP;
                        params->ring = app->swq[in->id];
                        params->tx_burst_sz =
                            app->swq_params[in->id].burst_write;
                        params->n_retries =
                            app->swq_params[in->id].n_retries;
                    }
                } else {
                    if (swq_params->dropless == 0) {
                        struct rte_port_ring_multi_writer_params *params =
                            &out->params.ring_multi;

                        out->type = PIPELINE_PORT_OUT_RING_MULTI_WRITER;
                        params->ring = app->swq[in->id];
                        params->tx_burst_sz = swq_params->burst_write;
                    } else {
                        struct rte_port_ring_multi_writer_nodrop_params
                            *params = &out->params.ring_multi_nodrop;

                        out->type = PIPELINE_PORT_OUT_RING_MULTI_WRITER_NODROP;
                        params->ring = app->swq[in->id];
                        params->tx_burst_sz = swq_params->burst_write;
                        params->n_retries = swq_params->n_retries;
                    }
                }
            } else {
                if (swq_params->ipv4_ras == 1) {
                    struct rte_port_ring_writer_ipv4_ras_params *params =
                        &out->params.ring_ipv4_ras;

                    out->type = PIPELINE_PORT_OUT_RING_WRITER_IPV4_RAS;
                    params->ring = app->swq[in->id];
                    params->tx_burst_sz = swq_params->burst_write;
                } else {
                    struct rte_port_ring_writer_ipv6_ras_params *params =
                        &out->params.ring_ipv6_ras;

                    out->type = PIPELINE_PORT_OUT_RING_WRITER_IPV6_RAS;
                    params->ring = app->swq[in->id];
                    params->tx_burst_sz = swq_params->burst_write;
                }
            }
            break;
        }
        case APP_PKTQ_OUT_TM:
        {
            struct rte_port_sched_writer_params *params =
                &out->params.sched;

            out->type = PIPELINE_PORT_OUT_SCHED_WRITER;
            params->sched = app->tm[in->id];
            params->tx_burst_sz =
                app->tm_params[in->id].burst_write;
            break;
        }
#ifdef RTE_EXEC_ENV_LINUXAPP
        case APP_PKTQ_OUT_TAP:
        {
            struct rte_port_fd_writer_params *params =
                &out->params.fd;

            out->type = PIPELINE_PORT_OUT_FD_WRITER;
            params->fd = app->tap[in->id];
            params->tx_burst_sz =
                app->tap_params[in->id].burst_write;
            break;
        }
#endif
#ifdef RTE_LIBRTE_KNI
        case APP_PKTQ_OUT_KNI:
        {
            struct app_pktq_kni_params *p_kni =
                &app->kni_params[in->id];

            if (p_kni->dropless == 0) {
                struct rte_port_kni_writer_params *params =
                    &out->params.kni;

                out->type = PIPELINE_PORT_OUT_KNI_WRITER;
                params->kni = app->kni[in->id];
                params->tx_burst_sz =
                    app->kni_params[in->id].burst_write;
            } else {
                struct rte_port_kni_writer_nodrop_params
                    *params = &out->params.kni_nodrop;

                out->type = PIPELINE_PORT_OUT_KNI_WRITER_NODROP;
                params->kni = app->kni[in->id];
                params->tx_burst_sz =
                    app->kni_params[in->id].burst_write;
                params->n_retries =
                    app->kni_params[in->id].n_retries;
            }
            break;
        }
#endif /* RTE_LIBRTE_KNI */
        case APP_PKTQ_OUT_SINK:
        {
            out->type = PIPELINE_PORT_OUT_SINK;
            out->params.sink.file_name =
                app->sink_params[in->id].file_name;
            out->params.sink.max_n_pkts =
                app->sink_params[in->id].
                n_pkts_to_dump;

            break;
        }
        default:
            break;
        }
    }

    /* msgq */
    p_out->n_msgq = p_in->n_msgq_in;

    for (i = 0; i < p_in->n_msgq_in; i++)
        p_out->msgq_in[i] = app->msgq[p_in->msgq_in[i]];

    for (i = 0; i < p_in->n_msgq_out; i++)
        p_out->msgq_out[i] = app->msgq[p_in->msgq_out[i]];

    /* args */
    p_out->n_args = p_in->n_args;
    for (i = 0; i < p_in->n_args; i++) {
        p_out->args_name[i] = p_in->args_name[i];
        p_out->args_value[i] = p_in->args_value[i];
    }
}

static void
app_init_pipelines(struct app_params *app)
{
    uint32_t p_id;

    for (p_id = 0; p_id < app->n_pipelines; p_id++) {
        struct app_pipeline_params *params =
            &app->pipeline_params[p_id];
        struct app_pipeline_data *data = &app->pipeline_data[p_id];
        struct pipeline_type *ptype;
        struct pipeline_params pp;

        APP_LOG(app, HIGH, "Initializing %s ...", params->name);

        ptype = app_pipeline_type_find(app, params->type);
        if (ptype == NULL)
            rte_panic("Init error: Unknown pipeline type \"%s\"\n",
                params->type);

        app_pipeline_params_get(app, params, &pp);

        /* Back-end */
        data->be = NULL;
        if (ptype->be_ops->f_init) {
            data->be = ptype->be_ops->f_init(&pp, (void *) app);

            if (data->be == NULL)
                rte_panic("Pipeline instance \"%s\" back-end "
                    "init error\n", params->name);
        }

        /* Front-end */
        data->fe = NULL;
        if (ptype->fe_ops->f_init) {
            data->fe = ptype->fe_ops->f_init(&pp, (void *) app);

            if (data->fe == NULL)
                rte_panic("Pipeline instance \"%s\" front-end "
                "init error\n", params->name);
        }

        data->ptype = ptype;

        data->timer_period = (rte_get_tsc_hz() *
            params->timer_period) / 1000;
    }
}

static void
app_post_init_pipelines(struct app_params *app)
{
    uint32_t p_id;

    for (p_id = 0; p_id < app->n_pipelines; p_id++) {
        struct app_pipeline_params *params =
            &app->pipeline_params[p_id];
        struct app_pipeline_data *data = &app->pipeline_data[p_id];
        int status;

        if (data->ptype->fe_ops->f_post_init == NULL)
            continue;

        status = data->ptype->fe_ops->f_post_init(data->fe);
        if (status)
            rte_panic("Pipeline instance \"%s\" front-end "
                "post-init error\n", params->name);
    }
}

static void
app_init_threads(struct app_params *app)
{
    uint64_t time = rte_get_tsc_cycles();
    uint32_t p_id;

    for (p_id = 0; p_id < app->n_pipelines; p_id++) {
        struct app_pipeline_params *params =
            &app->pipeline_params[p_id];
        struct app_pipeline_data *data = &app->pipeline_data[p_id];
        struct pipeline_type *ptype;
        struct app_thread_data *t;
        struct app_thread_pipeline_data *p;
        int lcore_id;

        lcore_id = cpu_core_map_get_lcore_id(app->core_map,
            params->socket_id,
            params->core_id,
            params->hyper_th_id);

        if (lcore_id < 0)
            rte_panic("Invalid core s%" PRIu32 "c%" PRIu32 "%s\n",
                params->socket_id,
                params->core_id,
                (params->hyper_th_id) ? "h" : "");

        t = &app->thread_data[lcore_id];

        t->timer_period = (rte_get_tsc_hz() * APP_THREAD_TIMER_PERIOD) / 1000;
        t->thread_req_deadline = time + t->timer_period;

        t->headroom_cycles = 0;
        t->headroom_time = rte_get_tsc_cycles();
        t->headroom_ratio = 0.0;

        t->msgq_in = app_thread_msgq_in_get(app,
                params->socket_id,
                params->core_id,
                params->hyper_th_id);
        if (t->msgq_in == NULL)
            rte_panic("Init error: Cannot find MSGQ_IN for thread %" PRId32,
                lcore_id);

        t->msgq_out = app_thread_msgq_out_get(app,
                params->socket_id,
                params->core_id,
                params->hyper_th_id);
        if (t->msgq_out == NULL)
            rte_panic("Init error: Cannot find MSGQ_OUT for thread %" PRId32,
                lcore_id);

        ptype = app_pipeline_type_find(app, params->type);
        if (ptype == NULL)
            rte_panic("Init error: Unknown pipeline "
                "type \"%s\"\n", params->type);

        p = (ptype->be_ops->f_run == NULL) ?
            &t->regular[t->n_regular] :
            &t->custom[t->n_custom];

        p->pipeline_id = p_id;
        p->be = data->be;
        p->f_run = ptype->be_ops->f_run;
        p->f_timer = ptype->be_ops->f_timer;
        p->timer_period = data->timer_period;
        p->deadline = time + data->timer_period;

        data->enabled = 1;

        if (ptype->be_ops->f_run == NULL)
            t->n_regular++;
        else
            t->n_custom++;
    }
}

int app_init(struct app_params *app)
{
    app_init_core_map(app);
    app_init_core_mask(app);

    app_init_eal(app);
    app_init_mempool(app);
    app_init_link(app);
    app_init_swq(app);
    app_init_tm(app);
    app_init_tap(app);
    app_init_kni(app);
    app_init_msgq(app);

    app_pipeline_common_cmd_push(app);
    app_pipeline_thread_cmd_push(app);
    app_pipeline_type_register(app, &pipeline_master);
    app_pipeline_type_register(app, &pipeline_passthrough);
    app_pipeline_type_register(app, &pipeline_flow_classification);
    app_pipeline_type_register(app, &pipeline_flow_actions);
    app_pipeline_type_register(app, &pipeline_firewall);
    app_pipeline_type_register(app, &pipeline_routing);

    app_init_pipelines(app);
    app_init_threads(app);

    return 0;
}

int app_post_init(struct app_params *app)
{
    app_post_init_pipelines(app);

    return 0;
}

static int
app_pipeline_type_cmd_push(struct app_params *app,
    struct pipeline_type *ptype)
{
    cmdline_parse_ctx_t *cmds;
    uint32_t n_cmds, i;

    /* Check input arguments */
    if ((app == NULL) ||
        (ptype == NULL))
        return -EINVAL;

    n_cmds = pipeline_type_cmds_count(ptype);
    if (n_cmds == 0)
        return 0;

    cmds = ptype->fe_ops->cmds;

    /* Check for available slots in the application commands array */
    if (n_cmds > APP_MAX_CMDS - app->n_cmds)
        return -ENOMEM;

    /* Push pipeline commands into the application */
    memcpy(&app->cmds[app->n_cmds],
        cmds,
        n_cmds * sizeof(cmdline_parse_ctx_t));

    for (i = 0; i < n_cmds; i++)
        app->cmds[app->n_cmds + i]->data = app;

    app->n_cmds += n_cmds;
    app->cmds[app->n_cmds] = NULL;

    return 0;
}

int
app_pipeline_type_register(struct app_params *app, struct pipeline_type *ptype)
{
    uint32_t n_cmds, i;

    /* Check input arguments */
    if ((app == NULL) ||
        (ptype == NULL) ||
        (ptype->name == NULL) ||
        (strlen(ptype->name) == 0) ||
        (ptype->be_ops->f_init == NULL) ||
        (ptype->be_ops->f_timer == NULL))
        return -EINVAL;

    /* Check for duplicate entry */
    for (i = 0; i < app->n_pipeline_types; i++)
        if (strcmp(app->pipeline_type[i].name, ptype->name) == 0)
            return -EEXIST;

    /* Check for resource availability */
    n_cmds = pipeline_type_cmds_count(ptype);
    if ((app->n_pipeline_types == APP_MAX_PIPELINE_TYPES) ||
        (n_cmds > APP_MAX_CMDS - app->n_cmds))
        return -ENOMEM;

    /* Copy pipeline type */
    memcpy(&app->pipeline_type[app->n_pipeline_types++],
        ptype,
        sizeof(struct pipeline_type));

    /* Copy CLI commands */
    if (n_cmds)
        app_pipeline_type_cmd_push(app, ptype);

    return 0;
}

struct
pipeline_type *app_pipeline_type_find(struct app_params *app, char *name)
{
    uint32_t i;

    for (i = 0; i < app->n_pipeline_types; i++)
        if (strcmp(app->pipeline_type[i].name, name) == 0)
            return &app->pipeline_type[i];

    return NULL;
}