examples/ip_pipeline/thread.c

/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright(c) 2010-2018 Intel Corporation
 */

#include <stdlib.h>

#include <rte_common.h>
#include <rte_cycles.h>
#include <rte_lcore.h>
#include <rte_ring.h>

#include <rte_table_acl.h>
#include <rte_table_array.h>
#include <rte_table_hash.h>
#include <rte_table_lpm.h>
#include <rte_table_lpm_ipv6.h>

#include "common.h"
#include "thread.h"
#include "pipeline.h"

#ifndef THREAD_PIPELINES_MAX
#define THREAD_PIPELINES_MAX                               256
#endif

#ifndef THREAD_MSGQ_SIZE
#define THREAD_MSGQ_SIZE                                   64
#endif

#ifndef THREAD_TIMER_PERIOD_MS
#define THREAD_TIMER_PERIOD_MS                             100
#endif

struct thread {
    struct rte_ring *msgq_req;
    struct rte_ring *msgq_rsp;

    uint32_t enabled;
};

static struct thread thread[RTE_MAX_LCORE];

struct table_data {
    struct rte_table_action *a;
};

struct pipeline_data {
    struct rte_pipeline *p;
    struct table_data table_data[RTE_PIPELINE_TABLE_MAX];
    uint32_t n_tables;

    struct rte_ring *msgq_req;
    struct rte_ring *msgq_rsp;
    uint64_t timer_period; /* Measured in CPU cycles. */
    uint64_t time_next;

    uint8_t buffer[TABLE_RULE_ACTION_SIZE_MAX];
};

struct thread_data {
    struct rte_pipeline *p[THREAD_PIPELINES_MAX];
    uint32_t n_pipelines;

    struct pipeline_data pipeline_data[THREAD_PIPELINES_MAX];
    struct rte_ring *msgq_req;
    struct rte_ring *msgq_rsp;
    uint64_t timer_period; /* Measured in CPU cycles. */
    uint64_t time_next;
    uint64_t time_next_min;
} __rte_cache_aligned;

static struct thread_data thread_data[RTE_MAX_LCORE];

static void
thread_free(void)
{
    uint32_t i;

    for (i = 0; i < RTE_MAX_LCORE; i++) {
        struct thread *t = &thread[i];

        if (!rte_lcore_is_enabled(i))
            continue;

        /* MSGQs */
        if (t->msgq_req)
            rte_ring_free(t->msgq_req);

        if (t->msgq_rsp)
            rte_ring_free(t->msgq_rsp);
    }
}

int
thread_init(void)
{
    uint32_t i;

    RTE_LCORE_FOREACH_SLAVE(i) {
        char name[NAME_MAX];
        struct rte_ring *msgq_req, *msgq_rsp;
        struct thread *t = &thread[i];
        struct thread_data *t_data = &thread_data[i];
        uint32_t cpu_id = rte_lcore_to_socket_id(i);

        /* MSGQs */
        snprintf(name, sizeof(name), "THREAD-%04x-MSGQ-REQ", i);

        msgq_req = rte_ring_create(name,
            THREAD_MSGQ_SIZE,
            cpu_id,
            RING_F_SP_ENQ | RING_F_SC_DEQ);

        if (msgq_req == NULL) {
            thread_free();
            return -1;
        }

        snprintf(name, sizeof(name), "THREAD-%04x-MSGQ-RSP", i);

        msgq_rsp = rte_ring_create(name,
            THREAD_MSGQ_SIZE,
            cpu_id,
            RING_F_SP_ENQ | RING_F_SC_DEQ);

        if (msgq_rsp == NULL) {
            thread_free();
            return -1;
        }

        /* Master thread records */
        t->msgq_req = msgq_req;
        t->msgq_rsp = msgq_rsp;
        t->enabled = 1;

        /* Data plane thread records */
        t_data->n_pipelines = 0;
        t_data->msgq_req = msgq_req;
        t_data->msgq_rsp = msgq_rsp;
        t_data->timer_period =
            (rte_get_tsc_hz() * THREAD_TIMER_PERIOD_MS) / 1000;
        t_data->time_next = rte_get_tsc_cycles() + t_data->timer_period;
        t_data->time_next_min = t_data->time_next;
    }

    return 0;
}

static inline int
thread_is_running(uint32_t thread_id)
{
    enum rte_lcore_state_t thread_state;

    thread_state = rte_eal_get_lcore_state(thread_id);
    return (thread_state == RUNNING) ? 1 : 0;
}

static inline int
pipeline_is_running(struct pipeline *p)
{
    if (p->enabled == 0)
        return 0;

    return thread_is_running(p->thread_id);
}

enum thread_req_type {
    THREAD_REQ_PIPELINE_ENABLE = 0,
    THREAD_REQ_PIPELINE_DISABLE,
    THREAD_REQ_MAX
};

struct thread_msg_req {
    enum thread_req_type type;

    union {
        struct {
            struct rte_pipeline *p;
            struct {
                struct rte_table_action *a;
            } table[RTE_PIPELINE_TABLE_MAX];
            struct rte_ring *msgq_req;
            struct rte_ring *msgq_rsp;
            uint32_t timer_period_ms;
            uint32_t n_tables;
        } pipeline_enable;

        struct {
            struct rte_pipeline *p;
        } pipeline_disable;
    };
};

struct thread_msg_rsp {
    int status;
};

static struct thread_msg_req *
thread_msg_alloc(void)
{
    size_t size = RTE_MAX(sizeof(struct thread_msg_req),
        sizeof(struct thread_msg_rsp));

    return calloc(1, size);
}

static void
thread_msg_free(struct thread_msg_rsp *rsp)
{
    free(rsp);
}

static struct thread_msg_rsp *
thread_msg_send_recv(uint32_t thread_id,
    struct thread_msg_req *req)
{
    struct thread *t = &thread[thread_id];
    struct rte_ring *msgq_req = t->msgq_req;
    struct rte_ring *msgq_rsp = t->msgq_rsp;
    struct thread_msg_rsp *rsp;
    int status;

    /* send */
    do {
        status = rte_ring_sp_enqueue(msgq_req, req);
    } while (status == -ENOBUFS);

    /* recv */
    do {
        status = rte_ring_sc_dequeue(msgq_rsp, (void **) &rsp);
    } while (status != 0);

    return rsp;
}

int
thread_pipeline_enable(uint32_t thread_id,
    const char *pipeline_name)
{
    struct pipeline *p = pipeline_find(pipeline_name);
    struct thread *t;
    struct thread_msg_req *req;
    struct thread_msg_rsp *rsp;
    uint32_t i;
    int status;

    /* Check input params */
    if ((thread_id >= RTE_MAX_LCORE) ||
        (p == NULL) ||
        (p->n_ports_in == 0) ||
        (p->n_ports_out == 0) ||
        (p->n_tables == 0))
        return -1;

    t = &thread[thread_id];
    if ((t->enabled == 0) ||
        p->enabled)
        return -1;

    if (!thread_is_running(thread_id)) {
        struct thread_data *td = &thread_data[thread_id];
        struct pipeline_data *tdp = &td->pipeline_data[td->n_pipelines];

        if (td->n_pipelines >= THREAD_PIPELINES_MAX)
            return -1;

        /* Data plane thread */
        td->p[td->n_pipelines] = p->p;

        tdp->p = p->p;
        for (i = 0; i < p->n_tables; i++)
            tdp->table_data[i].a = p->table[i].a;

        tdp->n_tables = p->n_tables;

        tdp->msgq_req = p->msgq_req;
        tdp->msgq_rsp = p->msgq_rsp;
        tdp->timer_period = (rte_get_tsc_hz() * p->timer_period_ms) / 1000;
        tdp->time_next = rte_get_tsc_cycles() + tdp->timer_period;

        td->n_pipelines++;

        /* Pipeline */
        p->thread_id = thread_id;
        p->enabled = 1;

        return 0;
    }

    /* Allocate request */
    req = thread_msg_alloc();
    if (req == NULL)
        return -1;

    /* Write request */
    req->type = THREAD_REQ_PIPELINE_ENABLE;
    req->pipeline_enable.p = p->p;
    for (i = 0; i < p->n_tables; i++)
        req->pipeline_enable.table[i].a =
            p->table[i].a;
    req->pipeline_enable.msgq_req = p->msgq_req;
    req->pipeline_enable.msgq_rsp = p->msgq_rsp;
    req->pipeline_enable.timer_period_ms = p->timer_period_ms;
    req->pipeline_enable.n_tables = p->n_tables;

    /* Send request and wait for response */
    rsp = thread_msg_send_recv(thread_id, req);

    /* Read response */
    status = rsp->status;

    /* Free response */
    thread_msg_free(rsp);

    /* Request completion */
    if (status)
        return status;

    p->thread_id = thread_id;
    p->enabled = 1;

    return 0;
}

int
thread_pipeline_disable(uint32_t thread_id,
    const char *pipeline_name)
{
    struct pipeline *p = pipeline_find(pipeline_name);
    struct thread *t;
    struct thread_msg_req *req;
    struct thread_msg_rsp *rsp;
    int status;

    /* Check input params */
    if ((thread_id >= RTE_MAX_LCORE) ||
        (p == NULL))
        return -1;

    t = &thread[thread_id];
    if (t->enabled == 0)
        return -1;

    if (p->enabled == 0)
        return 0;

    if (p->thread_id != thread_id)
        return -1;

    if (!thread_is_running(thread_id)) {
        struct thread_data *td = &thread_data[thread_id];
        uint32_t i;

        for (i = 0; i < td->n_pipelines; i++) {
            struct pipeline_data *tdp = &td->pipeline_data[i];

            if (tdp->p != p->p)
                continue;

            /* Data plane thread */
            if (i < td->n_pipelines - 1) {
                struct rte_pipeline *pipeline_last =
                    td->p[td->n_pipelines - 1];
                struct pipeline_data *tdp_last =
                    &td->pipeline_data[td->n_pipelines - 1];

                td->p[i] = pipeline_last;
                memcpy(tdp, tdp_last, sizeof(*tdp));
            }

            td->n_pipelines--;

            /* Pipeline */
            p->enabled = 0;

            break;
        }

        return 0;
    }

    /* Allocate request */
    req = thread_msg_alloc();
    if (req == NULL)
        return -1;

    /* Write request */
    req->type = THREAD_REQ_PIPELINE_DISABLE;
    req->pipeline_disable.p = p->p;

    /* Send request and wait for response */
    rsp = thread_msg_send_recv(thread_id, req);

    /* Read response */
    status = rsp->status;

    /* Free response */
    thread_msg_free(rsp);

    /* Request completion */
    if (status)
        return status;

    p->enabled = 0;

    return 0;
}

static inline struct thread_msg_req *
thread_msg_recv(struct rte_ring *msgq_req)
{
    struct thread_msg_req *req;

    int status = rte_ring_sc_dequeue(msgq_req, (void **) &req);

    if (status != 0)
        return NULL;

    return req;
}

static inline void
thread_msg_send(struct rte_ring *msgq_rsp,
    struct thread_msg_rsp *rsp)
{
    int status;

    do {
        status = rte_ring_sp_enqueue(msgq_rsp, rsp);
    } while (status == -ENOBUFS);
}

static struct thread_msg_rsp *
thread_msg_handle_pipeline_enable(struct thread_data *t,
    struct thread_msg_req *req)
{
    struct thread_msg_rsp *rsp = (struct thread_msg_rsp *) req;
    struct pipeline_data *p = &t->pipeline_data[t->n_pipelines];
    uint32_t i;

    /* Request */
    if (t->n_pipelines >= THREAD_PIPELINES_MAX) {
        rsp->status = -1;
        return rsp;
    }

    t->p[t->n_pipelines] = req->pipeline_enable.p;

    p->p = req->pipeline_enable.p;
    for (i = 0; i < req->pipeline_enable.n_tables; i++)
        p->table_data[i].a =
            req->pipeline_enable.table[i].a;

    p->n_tables = req->pipeline_enable.n_tables;

    p->msgq_req = req->pipeline_enable.msgq_req;
    p->msgq_rsp = req->pipeline_enable.msgq_rsp;
    p->timer_period =
        (rte_get_tsc_hz() * req->pipeline_enable.timer_period_ms) / 1000;
    p->time_next = rte_get_tsc_cycles() + p->timer_period;

    t->n_pipelines++;

    /* Response */
    rsp->status = 0;
    return rsp;
}

static struct thread_msg_rsp *
thread_msg_handle_pipeline_disable(struct thread_data *t,
    struct thread_msg_req *req)
{
    struct thread_msg_rsp *rsp = (struct thread_msg_rsp *) req;
    uint32_t n_pipelines = t->n_pipelines;
    struct rte_pipeline *pipeline = req->pipeline_disable.p;
    uint32_t i;

    /* find pipeline */
    for (i = 0; i < n_pipelines; i++) {
        struct pipeline_data *p = &t->pipeline_data[i];

        if (p->p != pipeline)
            continue;

        if (i < n_pipelines - 1) {
            struct rte_pipeline *pipeline_last =
                t->p[n_pipelines - 1];
            struct pipeline_data *p_last =
                &t->pipeline_data[n_pipelines - 1];

            t->p[i] = pipeline_last;
            memcpy(p, p_last, sizeof(*p));
        }

        t->n_pipelines--;

        rsp->status = 0;
        return rsp;
    }

    /* should not get here */
    rsp->status = 0;
    return rsp;
}

static void
thread_msg_handle(struct thread_data *t)
{
    for ( ; ; ) {
        struct thread_msg_req *req;
        struct thread_msg_rsp *rsp;

        req = thread_msg_recv(t->msgq_req);
        if (req == NULL)
            break;

        switch (req->type) {
        case THREAD_REQ_PIPELINE_ENABLE:
            rsp = thread_msg_handle_pipeline_enable(t, req);
            break;

        case THREAD_REQ_PIPELINE_DISABLE:
            rsp = thread_msg_handle_pipeline_disable(t, req);
            break;

        default:
            rsp = (struct thread_msg_rsp *) req;
            rsp->status = -1;
        }

        thread_msg_send(t->msgq_rsp, rsp);
    }
}

enum pipeline_req_type {
    /* Port IN */
    PIPELINE_REQ_PORT_IN_STATS_READ,
    PIPELINE_REQ_PORT_IN_ENABLE,
    PIPELINE_REQ_PORT_IN_DISABLE,

    /* Port OUT */
    PIPELINE_REQ_PORT_OUT_STATS_READ,

    /* Table */
    PIPELINE_REQ_TABLE_STATS_READ,
    PIPELINE_REQ_TABLE_RULE_ADD,
    PIPELINE_REQ_TABLE_RULE_ADD_DEFAULT,
    PIPELINE_REQ_TABLE_RULE_ADD_BULK,
    PIPELINE_REQ_TABLE_RULE_DELETE,
    PIPELINE_REQ_TABLE_RULE_DELETE_DEFAULT,
    PIPELINE_REQ_TABLE_RULE_STATS_READ,
    PIPELINE_REQ_TABLE_MTR_PROFILE_ADD,
    PIPELINE_REQ_TABLE_MTR_PROFILE_DELETE,
    PIPELINE_REQ_TABLE_RULE_MTR_READ,
    PIPELINE_REQ_TABLE_DSCP_TABLE_UPDATE,
    PIPELINE_REQ_TABLE_RULE_TTL_READ,
    PIPELINE_REQ_TABLE_RULE_TIME_READ,
    PIPELINE_REQ_MAX
};

struct pipeline_msg_req_port_in_stats_read {
    int clear;
};

struct pipeline_msg_req_port_out_stats_read {
    int clear;
};

struct pipeline_msg_req_table_stats_read {
    int clear;
};

struct pipeline_msg_req_table_rule_add {
    struct table_rule_match match;
    struct table_rule_action action;
};

struct pipeline_msg_req_table_rule_add_default {
    struct table_rule_action action;
};

struct pipeline_msg_req_table_rule_add_bulk {
    struct table_rule_list *list;
    int bulk;
};

struct pipeline_msg_req_table_rule_delete {
    struct table_rule_match match;
};

struct pipeline_msg_req_table_rule_stats_read {
    void *data;
    int clear;
};

struct pipeline_msg_req_table_mtr_profile_add {
    uint32_t meter_profile_id;
    struct rte_table_action_meter_profile profile;
};

struct pipeline_msg_req_table_mtr_profile_delete {
    uint32_t meter_profile_id;
};

struct pipeline_msg_req_table_rule_mtr_read {
    void *data;
    uint32_t tc_mask;
    int clear;
};

struct pipeline_msg_req_table_dscp_table_update {
    uint64_t dscp_mask;
    struct rte_table_action_dscp_table dscp_table;
};

struct pipeline_msg_req_table_rule_ttl_read {
    void *data;
    int clear;
};

struct pipeline_msg_req_table_rule_time_read {
    void *data;
};

struct pipeline_msg_req {
    enum pipeline_req_type type;
    uint32_t id; /* Port IN, port OUT or table ID */

    RTE_STD_C11
    union {
        struct pipeline_msg_req_port_in_stats_read port_in_stats_read;
        struct pipeline_msg_req_port_out_stats_read port_out_stats_read;
        struct pipeline_msg_req_table_stats_read table_stats_read;
        struct pipeline_msg_req_table_rule_add table_rule_add;
        struct pipeline_msg_req_table_rule_add_default table_rule_add_default;
        struct pipeline_msg_req_table_rule_add_bulk table_rule_add_bulk;
        struct pipeline_msg_req_table_rule_delete table_rule_delete;
        struct pipeline_msg_req_table_rule_stats_read table_rule_stats_read;
        struct pipeline_msg_req_table_mtr_profile_add table_mtr_profile_add;
        struct pipeline_msg_req_table_mtr_profile_delete table_mtr_profile_delete;
        struct pipeline_msg_req_table_rule_mtr_read table_rule_mtr_read;
        struct pipeline_msg_req_table_dscp_table_update table_dscp_table_update;
        struct pipeline_msg_req_table_rule_ttl_read table_rule_ttl_read;
        struct pipeline_msg_req_table_rule_time_read table_rule_time_read;
    };
};

struct pipeline_msg_rsp_port_in_stats_read {
    struct rte_pipeline_port_in_stats stats;
};

struct pipeline_msg_rsp_port_out_stats_read {
    struct rte_pipeline_port_out_stats stats;
};

struct pipeline_msg_rsp_table_stats_read {
    struct rte_pipeline_table_stats stats;
};

struct pipeline_msg_rsp_table_rule_add {
    void *data;
};

struct pipeline_msg_rsp_table_rule_add_default {
    void *data;
};

struct pipeline_msg_rsp_table_rule_add_bulk {
    uint32_t n_rules;
};

struct pipeline_msg_rsp_table_rule_stats_read {
    struct rte_table_action_stats_counters stats;
};

struct pipeline_msg_rsp_table_rule_mtr_read {
    struct rte_table_action_mtr_counters stats;
};

struct pipeline_msg_rsp_table_rule_ttl_read {
    struct rte_table_action_ttl_counters stats;
};

struct pipeline_msg_rsp_table_rule_time_read {
    uint64_t timestamp;
};

struct pipeline_msg_rsp {
    int status;

    RTE_STD_C11
    union {
        struct pipeline_msg_rsp_port_in_stats_read port_in_stats_read;
        struct pipeline_msg_rsp_port_out_stats_read port_out_stats_read;
        struct pipeline_msg_rsp_table_stats_read table_stats_read;
        struct pipeline_msg_rsp_table_rule_add table_rule_add;
        struct pipeline_msg_rsp_table_rule_add_default table_rule_add_default;
        struct pipeline_msg_rsp_table_rule_add_bulk table_rule_add_bulk;
        struct pipeline_msg_rsp_table_rule_stats_read table_rule_stats_read;
        struct pipeline_msg_rsp_table_rule_mtr_read table_rule_mtr_read;
        struct pipeline_msg_rsp_table_rule_ttl_read table_rule_ttl_read;
        struct pipeline_msg_rsp_table_rule_time_read table_rule_time_read;
    };
};

static struct pipeline_msg_req *
pipeline_msg_alloc(void)
{
    size_t size = RTE_MAX(sizeof(struct pipeline_msg_req),
        sizeof(struct pipeline_msg_rsp));

    return calloc(1, size);
}

static void
pipeline_msg_free(struct pipeline_msg_rsp *rsp)
{
    free(rsp);
}

static struct pipeline_msg_rsp *
pipeline_msg_send_recv(struct pipeline *p,
    struct pipeline_msg_req *req)
{
    struct rte_ring *msgq_req = p->msgq_req;
    struct rte_ring *msgq_rsp = p->msgq_rsp;
    struct pipeline_msg_rsp *rsp;
    int status;

    /* send */
    do {
        status = rte_ring_sp_enqueue(msgq_req, req);
    } while (status == -ENOBUFS);

    /* recv */
    do {
        status = rte_ring_sc_dequeue(msgq_rsp, (void **) &rsp);
    } while (status != 0);

    return rsp;
}

int
pipeline_port_in_stats_read(const char *pipeline_name,
    uint32_t port_id,
    struct rte_pipeline_port_in_stats *stats,
    int clear)
{
    struct pipeline *p;
    struct pipeline_msg_req *req;
    struct pipeline_msg_rsp *rsp;
    int status;

    /* Check input params */
    if ((pipeline_name == NULL) ||
        (stats == NULL))
        return -1;

    p = pipeline_find(pipeline_name);
    if ((p == NULL) ||
        (port_id >= p->n_ports_in))
        return -1;

    if (!pipeline_is_running(p)) {
        status = rte_pipeline_port_in_stats_read(p->p,
            port_id,
            stats,
            clear);

        return status;
    }

    /* Allocate request */
    req = pipeline_msg_alloc();
    if (req == NULL)
        return -1;

    /* Write request */
    req->type = PIPELINE_REQ_PORT_IN_STATS_READ;
    req->id = port_id;
    req->port_in_stats_read.clear = clear;

    /* Send request and wait for response */
    rsp = pipeline_msg_send_recv(p, req);

    /* Read response */
    status = rsp->status;
    if (status == 0)
        memcpy(stats, &rsp->port_in_stats_read.stats, sizeof(*stats));

    /* Free response */
    pipeline_msg_free(rsp);

    return status;
}

int
pipeline_port_in_enable(const char *pipeline_name,
    uint32_t port_id)
{
    struct pipeline *p;
    struct pipeline_msg_req *req;
    struct pipeline_msg_rsp *rsp;
    int status;

    /* Check input params */
    if (pipeline_name == NULL)
        return -1;

    p = pipeline_find(pipeline_name);
    if ((p == NULL) ||
        (port_id >= p->n_ports_in))
        return -1;

    if (!pipeline_is_running(p)) {
        status = rte_pipeline_port_in_enable(p->p, port_id);
        return status;
    }

    /* Allocate request */
    req = pipeline_msg_alloc();
    if (req == NULL)
        return -1;

    /* Write request */
    req->type = PIPELINE_REQ_PORT_IN_ENABLE;
    req->id = port_id;

    /* Send request and wait for response */
    rsp = pipeline_msg_send_recv(p, req);

    /* Read response */
    status = rsp->status;

    /* Free response */
    pipeline_msg_free(rsp);

    return status;
}

int
pipeline_port_in_disable(const char *pipeline_name,
    uint32_t port_id)
{
    struct pipeline *p;
    struct pipeline_msg_req *req;
    struct pipeline_msg_rsp *rsp;
    int status;

    /* Check input params */
    if (pipeline_name == NULL)
        return -1;

    p = pipeline_find(pipeline_name);
    if ((p == NULL) ||
        (port_id >= p->n_ports_in))
        return -1;

    if (!pipeline_is_running(p)) {
        status = rte_pipeline_port_in_disable(p->p, port_id);
        return status;
    }

    /* Allocate request */
    req = pipeline_msg_alloc();
    if (req == NULL)
        return -1;

    /* Write request */
    req->type = PIPELINE_REQ_PORT_IN_DISABLE;
    req->id = port_id;

    /* Send request and wait for response */
    rsp = pipeline_msg_send_recv(p, req);

    /* Read response */
    status = rsp->status;

    /* Free response */
    pipeline_msg_free(rsp);

    return status;
}

int
pipeline_port_out_stats_read(const char *pipeline_name,
    uint32_t port_id,
    struct rte_pipeline_port_out_stats *stats,
    int clear)
{
    struct pipeline *p;
    struct pipeline_msg_req *req;
    struct pipeline_msg_rsp *rsp;
    int status;

    /* Check input params */
    if ((pipeline_name == NULL) ||
        (stats == NULL))
        return -1;

    p = pipeline_find(pipeline_name);
    if ((p == NULL) ||
        (port_id >= p->n_ports_out))
        return -1;

    if (!pipeline_is_running(p)) {
        status = rte_pipeline_port_out_stats_read(p->p,
            port_id,
            stats,
            clear);

        return status;
    }

    /* Allocate request */
    req = pipeline_msg_alloc();
    if (req == NULL)
        return -1;

    /* Write request */
    req->type = PIPELINE_REQ_PORT_OUT_STATS_READ;
    req->id = port_id;
    req->port_out_stats_read.clear = clear;

    /* Send request and wait for response */
    rsp = pipeline_msg_send_recv(p, req);

    /* Read response */
    status = rsp->status;
    if (status == 0)
        memcpy(stats, &rsp->port_out_stats_read.stats, sizeof(*stats));

    /* Free response */
    pipeline_msg_free(rsp);

    return status;
}

int
pipeline_table_stats_read(const char *pipeline_name,
    uint32_t table_id,
    struct rte_pipeline_table_stats *stats,
    int clear)
{
    struct pipeline *p;
    struct pipeline_msg_req *req;
    struct pipeline_msg_rsp *rsp;
    int status;

    /* Check input params */
    if ((pipeline_name == NULL) ||
        (stats == NULL))
        return -1;

    p = pipeline_find(pipeline_name);
    if ((p == NULL) ||
        (table_id >= p->n_tables))
        return -1;

    if (!pipeline_is_running(p)) {
        status = rte_pipeline_table_stats_read(p->p,
            table_id,
            stats,
            clear);

        return status;
    }

    /* Allocate request */
    req = pipeline_msg_alloc();
    if (req == NULL)
        return -1;

    /* Write request */
    req->type = PIPELINE_REQ_TABLE_STATS_READ;
    req->id = table_id;
    req->table_stats_read.clear = clear;

    /* Send request and wait for response */
    rsp = pipeline_msg_send_recv(p, req);

    /* Read response */
    status = rsp->status;
    if (status == 0)
        memcpy(stats, &rsp->table_stats_read.stats, sizeof(*stats));

    /* Free response */
    pipeline_msg_free(rsp);

    return status;
}

static int
match_check(struct table_rule_match *match,
    struct pipeline *p,
    uint32_t table_id)
{
    struct table *table;

    if ((match == NULL) ||
        (p == NULL) ||
        (table_id >= p->n_tables))
        return -1;

    table = &p->table[table_id];
    if (match->match_type != table->params.match_type)
        return -1;

    switch (match->match_type) {
    case TABLE_ACL:
    {
        struct table_acl_params *t = &table->params.match.acl;
        struct table_rule_match_acl *r = &match->match.acl;

        if ((r->ip_version && (t->ip_version == 0)) ||
            ((r->ip_version == 0) && t->ip_version))
            return -1;

        if (r->ip_version) {
            if ((r->sa_depth > 32) ||
                (r->da_depth > 32))
                return -1;
        } else {
            if ((r->sa_depth > 128) ||
                (r->da_depth > 128))
                return -1;
        }
        return 0;
    }

    case TABLE_ARRAY:
        return 0;

    case TABLE_HASH:
        return 0;

    case TABLE_LPM:
    {
        struct table_lpm_params *t = &table->params.match.lpm;
        struct table_rule_match_lpm *r = &match->match.lpm;

        if ((r->ip_version && (t->key_size != 4)) ||
            ((r->ip_version == 0) && (t->key_size != 16)))
            return -1;

        if (r->ip_version) {
            if (r->depth > 32)
                return -1;
        } else {
            if (r->depth > 128)
                return -1;
        }
        return 0;
    }

    case TABLE_STUB:
        return -1;

    default:
        return -1;
    }
}

static int
action_check(struct table_rule_action *action,
    struct pipeline *p,
    uint32_t table_id)
{
    struct table_action_profile *ap;

    if ((action == NULL) ||
        (p == NULL) ||
        (table_id >= p->n_tables))
        return -1;

    ap = p->table[table_id].ap;
    if (action->action_mask != ap->params.action_mask)
        return -1;

    if (action->action_mask & (1LLU << RTE_TABLE_ACTION_FWD)) {
        if ((action->fwd.action == RTE_PIPELINE_ACTION_PORT) &&
            (action->fwd.id >= p->n_ports_out))
            return -1;

        if ((action->fwd.action == RTE_PIPELINE_ACTION_TABLE) &&
            (action->fwd.id >= p->n_tables))
            return -1;
    }

    if (action->action_mask & (1LLU << RTE_TABLE_ACTION_MTR)) {
        uint32_t tc_mask0 = (1 << ap->params.mtr.n_tc) - 1;
        uint32_t tc_mask1 = action->mtr.tc_mask;

        if (tc_mask1 != tc_mask0)
            return -1;
    }

    if (action->action_mask & (1LLU << RTE_TABLE_ACTION_TM)) {
        uint32_t n_subports_per_port =
            ap->params.tm.n_subports_per_port;
        uint32_t n_pipes_per_subport =
            ap->params.tm.n_pipes_per_subport;
        uint32_t subport_id = action->tm.subport_id;
        uint32_t pipe_id = action->tm.pipe_id;

        if ((subport_id >= n_subports_per_port) ||
            (pipe_id >= n_pipes_per_subport))
            return -1;
    }

    if (action->action_mask & (1LLU << RTE_TABLE_ACTION_ENCAP)) {
        uint64_t encap_mask = ap->params.encap.encap_mask;
        enum rte_table_action_encap_type type = action->encap.type;

        if ((encap_mask & (1LLU << type)) == 0)
            return -1;
    }

    if (action->action_mask & (1LLU << RTE_TABLE_ACTION_NAT)) {
        int ip_version0 = ap->params.common.ip_version;
        int ip_version1 = action->nat.ip_version;

        if ((ip_version1 && (ip_version0 == 0)) ||
            ((ip_version1 == 0) && ip_version0))
            return -1;
    }

    return 0;
}

static int
action_default_check(struct table_rule_action *action,
    struct pipeline *p,
    uint32_t table_id)
{
    if ((action == NULL) ||
        (action->action_mask != (1LLU << RTE_TABLE_ACTION_FWD)) ||
        (p == NULL) ||
        (table_id >= p->n_tables))
        return -1;

    if (action->action_mask & (1LLU << RTE_TABLE_ACTION_FWD)) {
        if ((action->fwd.action == RTE_PIPELINE_ACTION_PORT) &&
            (action->fwd.id >= p->n_ports_out))
            return -1;

        if ((action->fwd.action == RTE_PIPELINE_ACTION_TABLE) &&
            (action->fwd.id >= p->n_tables))
            return -1;
    }

    return 0;
}

union table_rule_match_low_level {
    struct rte_table_acl_rule_add_params acl_add;
    struct rte_table_acl_rule_delete_params acl_delete;
    struct rte_table_array_key array;
    uint8_t hash[TABLE_RULE_MATCH_SIZE_MAX];
    struct rte_table_lpm_key lpm_ipv4;
    struct rte_table_lpm_ipv6_key lpm_ipv6;
};

static int
match_convert(struct table_rule_match *mh,
    union table_rule_match_low_level *ml,
    int add);

static int
action_convert(struct rte_table_action *a,
    struct table_rule_action *action,
    struct rte_pipeline_table_entry *data);

struct table_ll {
    struct rte_pipeline *p;
    int table_id;
    struct rte_table_action *a;
    int bulk_supported;
};

static int
table_rule_add_bulk_ll(struct table_ll *table,
    struct table_rule_list *list,
    uint32_t *n_rules)
{
    union table_rule_match_low_level *match_ll = NULL;
    uint8_t *action_ll = NULL;
    void **match_ll_ptr = NULL;
    struct rte_pipeline_table_entry **action_ll_ptr = NULL;
    struct rte_pipeline_table_entry **entries_ptr = NULL;
    int *found = NULL;
    struct table_rule *rule;
    uint32_t n, i;
    int status = 0;

    n = 0;
    TAILQ_FOREACH(rule, list, node)
        n++;

    /* Memory allocation */
    match_ll = calloc(n, sizeof(union table_rule_match_low_level));
    action_ll = calloc(n, TABLE_RULE_ACTION_SIZE_MAX);

    match_ll_ptr = calloc(n, sizeof(void *));
    action_ll_ptr = calloc(n, sizeof(struct rte_pipeline_table_entry *));

    entries_ptr = calloc(n, sizeof(struct rte_pipeline_table_entry *));
    found = calloc(n, sizeof(int));

    if (match_ll == NULL ||
        action_ll == NULL ||
        match_ll_ptr == NULL ||
        action_ll_ptr == NULL ||
        entries_ptr == NULL ||
        found == NULL) {
            status = -ENOMEM;
            goto table_rule_add_bulk_ll_free;
    }

    /* Init */
    for (i = 0; i < n; i++) {
        match_ll_ptr[i] = (void *)&match_ll[i];
        action_ll_ptr[i] = (struct rte_pipeline_table_entry *)
            &action_ll[i * TABLE_RULE_ACTION_SIZE_MAX];
    }

    /* Rule (match, action) conversion */
    i = 0;
    TAILQ_FOREACH(rule, list, node) {
        status = match_convert(&rule->match, match_ll_ptr[i], 1);
        if (status)
            goto table_rule_add_bulk_ll_free;

        status = action_convert(table->a, &rule->action, action_ll_ptr[i]);
        if (status)
            goto table_rule_add_bulk_ll_free;

        i++;
    }

    /* Add rule (match, action) to table */
    if (table->bulk_supported) {
        status = rte_pipeline_table_entry_add_bulk(table->p,
            table->table_id,
            match_ll_ptr,
            action_ll_ptr,
            n,
            found,
            entries_ptr);
        if (status)
            goto table_rule_add_bulk_ll_free;
    } else
        for (i = 0; i < n; i++) {
            status = rte_pipeline_table_entry_add(table->p,
                table->table_id,
                match_ll_ptr[i],
                action_ll_ptr[i],
                &found[i],
                &entries_ptr[i]);
            if (status) {
                if (i == 0)
                    goto table_rule_add_bulk_ll_free;

                /* No roll-back. */
                status = 0;
                n = i;
                break;
            }
        }

    /* Write back to the rule list. */
    i = 0;
    TAILQ_FOREACH(rule, list, node) {
        if (i >= n)
            break;

        rule->data = entries_ptr[i];

        i++;
    }

    *n_rules = n;

    /* Free */
table_rule_add_bulk_ll_free:
    free(found);
    free(entries_ptr);
    free(action_ll_ptr);
    free(match_ll_ptr);
    free(action_ll);
    free(match_ll);

    return status;
}

int
pipeline_table_rule_add(const char *pipeline_name,
    uint32_t table_id,
    struct table_rule_match *match,
    struct table_rule_action *action)
{
    struct pipeline *p;
    struct table *table;
    struct pipeline_msg_req *req;
    struct pipeline_msg_rsp *rsp;
    struct table_rule *rule;
    int status;

    /* Check input params */
    if ((pipeline_name == NULL) ||
        (match == NULL) ||
        (action == NULL))
        return -1;

    p = pipeline_find(pipeline_name);
    if ((p == NULL) ||
        (table_id >= p->n_tables) ||
        match_check(match, p, table_id) ||
        action_check(action, p, table_id))
        return -1;

    table = &p->table[table_id];

    rule = calloc(1, sizeof(struct table_rule));
    if (rule == NULL)
        return -1;

    memcpy(&rule->match, match, sizeof(*match));
    memcpy(&rule->action, action, sizeof(*action));

    if (!pipeline_is_running(p)) {
        union table_rule_match_low_level match_ll;
        struct rte_pipeline_table_entry *data_in, *data_out;
        int key_found;
        uint8_t *buffer;

        buffer = calloc(TABLE_RULE_ACTION_SIZE_MAX, sizeof(uint8_t));
        if (buffer == NULL) {
            free(rule);
            return -1;
        }

        /* Table match-action rule conversion */
        data_in = (struct rte_pipeline_table_entry *)buffer;

        status = match_convert(match, &match_ll, 1);
        if (status) {
            free(buffer);
            free(rule);
            return -1;
        }

        status = action_convert(table->a, action, data_in);
        if (status) {
            free(buffer);
            free(rule);
            return -1;
        }

        /* Add rule (match, action) to table */
        status = rte_pipeline_table_entry_add(p->p,
                table_id,
                &match_ll,
                data_in,
                &key_found,
                &data_out);
        if (status) {
            free(buffer);
            free(rule);
            return -1;
        }

        /* Write Response */
        rule->data = data_out;
        table_rule_add(table, rule);

        free(buffer);
        return 0;
    }

    /* Allocate request */
    req = pipeline_msg_alloc();
    if (req == NULL) {
        free(rule);
        return -1;
    }

    /* Write request */
    req->type = PIPELINE_REQ_TABLE_RULE_ADD;
    req->id = table_id;
    memcpy(&req->table_rule_add.match, match, sizeof(*match));
    memcpy(&req->table_rule_add.action, action, sizeof(*action));

    /* Send request and wait for response */
    rsp = pipeline_msg_send_recv(p, req);

    /* Read response */
    status = rsp->status;
    if (status == 0) {
        rule->data = rsp->table_rule_add.data;
        table_rule_add(table, rule);
    } else
        free(rule);

    /* Free response */
    pipeline_msg_free(rsp);

    return status;
}

int
pipeline_table_rule_add_default(const char *pipeline_name,
    uint32_t table_id,
    struct table_rule_action *action)
{
    struct pipeline *p;
    struct table *table;
    struct pipeline_msg_req *req;
    struct pipeline_msg_rsp *rsp;
    struct table_rule *rule;
    int status;

    /* Check input params */
    if ((pipeline_name == NULL) ||
        (action == NULL))
        return -1;

    p = pipeline_find(pipeline_name);
    if ((p == NULL) ||
        (table_id >= p->n_tables) ||
        action_default_check(action, p, table_id))
        return -1;

    table = &p->table[table_id];

    rule = calloc(1, sizeof(struct table_rule));
    if (rule == NULL)
        return -1;

    memcpy(&rule->action, action, sizeof(*action));

    if (!pipeline_is_running(p)) {
        struct rte_pipeline_table_entry *data_in, *data_out;
        uint8_t *buffer;

        buffer = calloc(TABLE_RULE_ACTION_SIZE_MAX, sizeof(uint8_t));
        if (buffer == NULL) {
            free(rule);
            return -1;
        }

        /* Apply actions */
        data_in = (struct rte_pipeline_table_entry *)buffer;

        data_in->action = action->fwd.action;
        if (action->fwd.action == RTE_PIPELINE_ACTION_PORT)
            data_in->port_id = action->fwd.id;
        if (action->fwd.action == RTE_PIPELINE_ACTION_TABLE)
            data_in->table_id = action->fwd.id;

        /* Add default rule to table */
        status = rte_pipeline_table_default_entry_add(p->p,
                table_id,
                data_in,
                &data_out);
        if (status) {
            free(buffer);
            free(rule);
            return -1;
        }

        /* Write Response */
        rule->data = data_out;
        table_rule_default_add(table, rule);

        free(buffer);
        return 0;
    }

    /* Allocate request */
    req = pipeline_msg_alloc();
    if (req == NULL) {
        free(rule);
        return -1;
    }

    /* Write request */
    req->type = PIPELINE_REQ_TABLE_RULE_ADD_DEFAULT;
    req->id = table_id;
    memcpy(&req->table_rule_add_default.action, action, sizeof(*action));

    /* Send request and wait for response */
    rsp = pipeline_msg_send_recv(p, req);

    /* Read response */
    status = rsp->status;
    if (status == 0) {
        rule->data = rsp->table_rule_add_default.data;
        table_rule_default_add(table, rule);
    } else
        free(rule);

    /* Free response */
    pipeline_msg_free(rsp);

    return status;
}

static uint32_t
table_rule_list_free(struct table_rule_list *list)
{
    uint32_t n = 0;

    if (!list)
        return 0;

    for ( ; ; ) {
        struct table_rule *rule;

        rule = TAILQ_FIRST(list);
        if (rule == NULL)
            break;

        TAILQ_REMOVE(list, rule, node);
        free(rule);
        n++;
    }

    free(list);
    return n;
}

int
pipeline_table_rule_add_bulk(const char *pipeline_name,
    uint32_t table_id,
    struct table_rule_list *list,
    uint32_t *n_rules_added,
    uint32_t *n_rules_not_added)
{
    struct pipeline *p;
    struct table *table;
    struct pipeline_msg_req *req;
    struct pipeline_msg_rsp *rsp;
    struct table_rule *rule;
    int status = 0;

    /* Check input params */
    if ((pipeline_name == NULL) ||
        (list == NULL) ||
        TAILQ_EMPTY(list) ||
        (n_rules_added == NULL) ||
        (n_rules_not_added == NULL)) {
        table_rule_list_free(list);
        return -EINVAL;
    }

    p = pipeline_find(pipeline_name);
    if ((p == NULL) ||
        (table_id >= p->n_tables)) {
        table_rule_list_free(list);
        return -EINVAL;
    }

    table = &p->table[table_id];

    TAILQ_FOREACH(rule, list, node)
        if (match_check(&rule->match, p, table_id) ||
            action_check(&rule->action, p, table_id)) {
            table_rule_list_free(list);
            return -EINVAL;
        }

    if (!pipeline_is_running(p)) {
        struct table_ll table_ll = {
            .p = p->p,
            .table_id = table_id,
            .a = table->a,
            .bulk_supported = table->params.match_type == TABLE_ACL,
        };

        status = table_rule_add_bulk_ll(&table_ll, list, n_rules_added);
        if (status) {
            table_rule_list_free(list);
            return status;
        }

        table_rule_add_bulk(table, list, *n_rules_added);
        *n_rules_not_added = table_rule_list_free(list);
        return 0;
    }

    /* Allocate request */
    req = pipeline_msg_alloc();
    if (req == NULL) {
        table_rule_list_free(list);
        return -ENOMEM;
    }

    /* Write request */
    req->type = PIPELINE_REQ_TABLE_RULE_ADD_BULK;
    req->id = table_id;
    req->table_rule_add_bulk.list = list;
    req->table_rule_add_bulk.bulk = table->params.match_type == TABLE_ACL;

    /* Send request and wait for response */
    rsp = pipeline_msg_send_recv(p, req);

    /* Read response */
    status = rsp->status;
    if (status == 0) {
        *n_rules_added = rsp->table_rule_add_bulk.n_rules;

        table_rule_add_bulk(table, list, *n_rules_added);
        *n_rules_not_added = table_rule_list_free(list);
    } else
        table_rule_list_free(list);


    /* Free response */
    pipeline_msg_free(rsp);

    return status;
}

int
pipeline_table_rule_delete(const char *pipeline_name,
    uint32_t table_id,
    struct table_rule_match *match)
{
    struct pipeline *p;
    struct table *table;
    struct pipeline_msg_req *req;
    struct pipeline_msg_rsp *rsp;
    int status;

    /* Check input params */
    if ((pipeline_name == NULL) ||
        (match == NULL))
        return -1;

    p = pipeline_find(pipeline_name);
    if ((p == NULL) ||
        (table_id >= p->n_tables) ||
        match_check(match, p, table_id))
        return -1;

    table = &p->table[table_id];

    if (!pipeline_is_running(p)) {
        union table_rule_match_low_level match_ll;
        int key_found;

        status = match_convert(match, &match_ll, 0);
        if (status)
            return -1;

        status = rte_pipeline_table_entry_delete(p->p,
                table_id,
                &match_ll,
                &key_found,
                NULL);

        if (status == 0)
            table_rule_delete(table, match);

        return status;
    }

    /* Allocate request */
    req = pipeline_msg_alloc();
    if (req == NULL)
        return -1;

    /* Write request */
    req->type = PIPELINE_REQ_TABLE_RULE_DELETE;
    req->id = table_id;
    memcpy(&req->table_rule_delete.match, match, sizeof(*match));

    /* Send request and wait for response */
    rsp = pipeline_msg_send_recv(p, req);

    /* Read response */
    status = rsp->status;
    if (status == 0)
        table_rule_delete(table, match);

    /* Free response */
    pipeline_msg_free(rsp);

    return status;
}

int
pipeline_table_rule_delete_default(const char *pipeline_name,
    uint32_t table_id)
{
    struct pipeline *p;
    struct table *table;
    struct pipeline_msg_req *req;
    struct pipeline_msg_rsp *rsp;
    int status;

    /* Check input params */
    if (pipeline_name == NULL)
        return -1;

    p = pipeline_find(pipeline_name);
    if ((p == NULL) ||
        (table_id >= p->n_tables))
        return -1;

    table = &p->table[table_id];

    if (!pipeline_is_running(p)) {
        status = rte_pipeline_table_default_entry_delete(p->p,
            table_id,
            NULL);

        if (status == 0)
            table_rule_default_delete(table);

        return status;
    }

    /* Allocate request */
    req = pipeline_msg_alloc();
    if (req == NULL)
        return -1;

    /* Write request */
    req->type = PIPELINE_REQ_TABLE_RULE_DELETE_DEFAULT;
    req->id = table_id;

    /* Send request and wait for response */
    rsp = pipeline_msg_send_recv(p, req);

    /* Read response */
    status = rsp->status;
    if (status == 0)
        table_rule_default_delete(table);

    /* Free response */
    pipeline_msg_free(rsp);

    return status;
}

int
pipeline_table_rule_stats_read(const char *pipeline_name,
    uint32_t table_id,
    struct table_rule_match *match,
    struct rte_table_action_stats_counters *stats,
    int clear)
{
    struct pipeline *p;
    struct table *table;
    struct pipeline_msg_req *req;
    struct pipeline_msg_rsp *rsp;
    struct table_rule *rule;
    int status;

    /* Check input params */
    if ((pipeline_name == NULL) ||
        (match == NULL) ||
        (stats == NULL))
        return -1;

    p = pipeline_find(pipeline_name);
    if ((p == NULL) ||
        (table_id >= p->n_tables) ||
        match_check(match, p, table_id))
        return -1;

    table = &p->table[table_id];
    rule = table_rule_find(table, match);
    if (rule == NULL)
        return -1;

    if (!pipeline_is_running(p)) {
        status = rte_table_action_stats_read(table->a,
            rule->data,
            stats,
            clear);

        return status;
    }

    /* Allocate request */
    req = pipeline_msg_alloc();
    if (req == NULL)
        return -1;

    /* Write request */
    req->type = PIPELINE_REQ_TABLE_RULE_STATS_READ;
    req->id = table_id;
    req->table_rule_stats_read.data = rule->data;
    req->table_rule_stats_read.clear = clear;

    /* Send request and wait for response */
    rsp = pipeline_msg_send_recv(p, req);

    /* Read response */
    status = rsp->status;
    if (status == 0)
        memcpy(stats, &rsp->table_rule_stats_read.stats, sizeof(*stats));

    /* Free response */
    pipeline_msg_free(rsp);

    return status;
}

int
pipeline_table_mtr_profile_add(const char *pipeline_name,
    uint32_t table_id,
    uint32_t meter_profile_id,
    struct rte_table_action_meter_profile *profile)
{
    struct pipeline *p;
    struct pipeline_msg_req *req;
    struct pipeline_msg_rsp *rsp;
    int status;

    /* Check input params */
    if ((pipeline_name == NULL) ||
        (profile == NULL))
        return -1;

    p = pipeline_find(pipeline_name);
    if ((p == NULL) ||
        (table_id >= p->n_tables))
        return -1;

    if (!pipeline_is_running(p)) {
        struct rte_table_action *a = p->table[table_id].a;

        status = rte_table_action_meter_profile_add(a,
            meter_profile_id,
            profile);

        return status;
    }

    /* Allocate request */
    req = pipeline_msg_alloc();
    if (req == NULL)
        return -1;

    /* Write request */
    req->type = PIPELINE_REQ_TABLE_MTR_PROFILE_ADD;
    req->id = table_id;
    req->table_mtr_profile_add.meter_profile_id = meter_profile_id;
    memcpy(&req->table_mtr_profile_add.profile, profile, sizeof(*profile));

    /* Send request and wait for response */
    rsp = pipeline_msg_send_recv(p, req);

    /* Read response */
    status = rsp->status;

    /* Free response */
    pipeline_msg_free(rsp);

    return status;
}

int
pipeline_table_mtr_profile_delete(const char *pipeline_name,
    uint32_t table_id,
    uint32_t meter_profile_id)
{
    struct pipeline *p;
    struct pipeline_msg_req *req;
    struct pipeline_msg_rsp *rsp;
    int status;

    /* Check input params */
    if (pipeline_name == NULL)
        return -1;

    p = pipeline_find(pipeline_name);
    if ((p == NULL) ||
        (table_id >= p->n_tables))
        return -1;

    if (!pipeline_is_running(p)) {
        struct rte_table_action *a = p->table[table_id].a;

        status = rte_table_action_meter_profile_delete(a,
                meter_profile_id);

        return status;
    }

    /* Allocate request */
    req = pipeline_msg_alloc();
    if (req == NULL)
        return -1;

    /* Write request */
    req->type = PIPELINE_REQ_TABLE_MTR_PROFILE_DELETE;
    req->id = table_id;
    req->table_mtr_profile_delete.meter_profile_id = meter_profile_id;

    /* Send request and wait for response */
    rsp = pipeline_msg_send_recv(p, req);

    /* Read response */
    status = rsp->status;

    /* Free response */
    pipeline_msg_free(rsp);

    return status;
}

int
pipeline_table_rule_mtr_read(const char *pipeline_name,
    uint32_t table_id,
    struct table_rule_match *match,
    struct rte_table_action_mtr_counters *stats,
    int clear)
{
    struct pipeline *p;
    struct table *table;
    struct pipeline_msg_req *req;
    struct pipeline_msg_rsp *rsp;
    struct table_rule *rule;
    uint32_t tc_mask;
    int status;

    /* Check input params */
    if ((pipeline_name == NULL) ||
        (match == NULL) ||
        (stats == NULL))
        return -1;

    p = pipeline_find(pipeline_name);
    if ((p == NULL) ||
        (table_id >= p->n_tables) ||
        match_check(match, p, table_id))
        return -1;

    table = &p->table[table_id];
    tc_mask = (1 << table->ap->params.mtr.n_tc) - 1;

    rule = table_rule_find(table, match);
    if (rule == NULL)
        return -1;

    if (!pipeline_is_running(p)) {
        status = rte_table_action_meter_read(table->a,
                rule->data,
                tc_mask,
                stats,
                clear);

        return status;
    }

    /* Allocate request */
    req = pipeline_msg_alloc();
    if (req == NULL)
        return -1;

    /* Write request */
    req->type = PIPELINE_REQ_TABLE_RULE_MTR_READ;
    req->id = table_id;
    req->table_rule_mtr_read.data = rule->data;
    req->table_rule_mtr_read.tc_mask = tc_mask;
    req->table_rule_mtr_read.clear = clear;

    /* Send request and wait for response */
    rsp = pipeline_msg_send_recv(p, req);

    /* Read response */
    status = rsp->status;
    if (status == 0)
        memcpy(stats, &rsp->table_rule_mtr_read.stats, sizeof(*stats));

    /* Free response */
    pipeline_msg_free(rsp);

    return status;
}

int
pipeline_table_dscp_table_update(const char *pipeline_name,
    uint32_t table_id,
    uint64_t dscp_mask,
    struct rte_table_action_dscp_table *dscp_table)
{
    struct pipeline *p;
    struct pipeline_msg_req *req;
    struct pipeline_msg_rsp *rsp;
    int status;

    /* Check input params */
    if ((pipeline_name == NULL) ||
        (dscp_table == NULL))
        return -1;

    p = pipeline_find(pipeline_name);
    if ((p == NULL) ||
        (table_id >= p->n_tables))
        return -1;

    if (!pipeline_is_running(p)) {
        struct rte_table_action *a = p->table[table_id].a;

        status = rte_table_action_dscp_table_update(a,
                dscp_mask,
                dscp_table);

        return status;
    }

    /* Allocate request */
    req = pipeline_msg_alloc();
    if (req == NULL)
        return -1;

    /* Write request */
    req->type = PIPELINE_REQ_TABLE_DSCP_TABLE_UPDATE;
    req->id = table_id;
    req->table_dscp_table_update.dscp_mask = dscp_mask;
    memcpy(&req->table_dscp_table_update.dscp_table,
        dscp_table, sizeof(*dscp_table));

    /* Send request and wait for response */
    rsp = pipeline_msg_send_recv(p, req);

    /* Read response */
    status = rsp->status;

    /* Free response */
    pipeline_msg_free(rsp);

    return status;
}

int
pipeline_table_rule_ttl_read(const char *pipeline_name,
    uint32_t table_id,
    struct table_rule_match *match,
    struct rte_table_action_ttl_counters *stats,
    int clear)
{
    struct pipeline *p;
    struct table *table;
    struct pipeline_msg_req *req;
    struct pipeline_msg_rsp *rsp;
    struct table_rule *rule;
    int status;

    /* Check input params */
    if ((pipeline_name == NULL) ||
        (match == NULL) ||
        (stats == NULL))
        return -1;

    p = pipeline_find(pipeline_name);
    if ((p == NULL) ||
        (table_id >= p->n_tables) ||
        match_check(match, p, table_id))
        return -1;

    table = &p->table[table_id];
    if (!table->ap->params.ttl.n_packets_enabled)
        return -1;

    rule = table_rule_find(table, match);
    if (rule == NULL)
        return -1;

    if (!pipeline_is_running(p)) {
        status = rte_table_action_ttl_read(table->a,
                rule->data,
                stats,
                clear);

        return status;
    }

    /* Allocate request */
    req = pipeline_msg_alloc();
    if (req == NULL)
        return -1;

    /* Write request */
    req->type = PIPELINE_REQ_TABLE_RULE_TTL_READ;
    req->id = table_id;
    req->table_rule_ttl_read.data = rule->data;
    req->table_rule_ttl_read.clear = clear;

    /* Send request and wait for response */
    rsp = pipeline_msg_send_recv(p, req);

    /* Read response */
    status = rsp->status;
    if (status == 0)
        memcpy(stats, &rsp->table_rule_ttl_read.stats, sizeof(*stats));

    /* Free response */
    pipeline_msg_free(rsp);

    return status;
}

int
pipeline_table_rule_time_read(const char *pipeline_name,
    uint32_t table_id,
    struct table_rule_match *match,
    uint64_t *timestamp)
{
    struct pipeline *p;
    struct table *table;
    struct pipeline_msg_req *req;
    struct pipeline_msg_rsp *rsp;
    struct table_rule *rule;
    int status;

    /* Check input params */
    if ((pipeline_name == NULL) ||
        (match == NULL) ||
        (timestamp == NULL))
        return -1;

    p = pipeline_find(pipeline_name);
    if ((p == NULL) ||
        (table_id >= p->n_tables) ||
        match_check(match, p, table_id))
        return -1;

    table = &p->table[table_id];

    rule = table_rule_find(table, match);
    if (rule == NULL)
        return -1;

    if (!pipeline_is_running(p)) {
        status = rte_table_action_time_read(table->a,
                rule->data,
                timestamp);

        return status;
    }

    /* Allocate request */
    req = pipeline_msg_alloc();
    if (req == NULL)
        return -1;

    /* Write request */
    req->type = PIPELINE_REQ_TABLE_RULE_TIME_READ;
    req->id = table_id;
    req->table_rule_time_read.data = rule->data;

    /* Send request and wait for response */
    rsp = pipeline_msg_send_recv(p, req);

    /* Read response */
    status = rsp->status;
    if (status == 0)
        *timestamp = rsp->table_rule_time_read.timestamp;

    /* Free response */
    pipeline_msg_free(rsp);

    return status;
}

static inline struct pipeline_msg_req *
pipeline_msg_recv(struct rte_ring *msgq_req)
{
    struct pipeline_msg_req *req;

    int status = rte_ring_sc_dequeue(msgq_req, (void **) &req);

    if (status != 0)
        return NULL;

    return req;
}

static inline void
pipeline_msg_send(struct rte_ring *msgq_rsp,
    struct pipeline_msg_rsp *rsp)
{
    int status;

    do {
        status = rte_ring_sp_enqueue(msgq_rsp, rsp);
    } while (status == -ENOBUFS);
}

static struct pipeline_msg_rsp *
pipeline_msg_handle_port_in_stats_read(struct pipeline_data *p,
    struct pipeline_msg_req *req)
{
    struct pipeline_msg_rsp *rsp = (struct pipeline_msg_rsp *) req;
    uint32_t port_id = req->id;
    int clear = req->port_in_stats_read.clear;

    rsp->status = rte_pipeline_port_in_stats_read(p->p,
        port_id,
        &rsp->port_in_stats_read.stats,
        clear);

    return rsp;
}

static struct pipeline_msg_rsp *
pipeline_msg_handle_port_in_enable(struct pipeline_data *p,
    struct pipeline_msg_req *req)
{
    struct pipeline_msg_rsp *rsp = (struct pipeline_msg_rsp *) req;
    uint32_t port_id = req->id;

    rsp->status = rte_pipeline_port_in_enable(p->p,
        port_id);

    return rsp;
}

static struct pipeline_msg_rsp *
pipeline_msg_handle_port_in_disable(struct pipeline_data *p,
    struct pipeline_msg_req *req)
{
    struct pipeline_msg_rsp *rsp = (struct pipeline_msg_rsp *) req;
    uint32_t port_id = req->id;

    rsp->status = rte_pipeline_port_in_disable(p->p,
        port_id);

    return rsp;
}

static struct pipeline_msg_rsp *
pipeline_msg_handle_port_out_stats_read(struct pipeline_data *p,
    struct pipeline_msg_req *req)
{
    struct pipeline_msg_rsp *rsp = (struct pipeline_msg_rsp *) req;
    uint32_t port_id = req->id;
    int clear = req->port_out_stats_read.clear;

    rsp->status = rte_pipeline_port_out_stats_read(p->p,
        port_id,
        &rsp->port_out_stats_read.stats,
        clear);

    return rsp;
}

static struct pipeline_msg_rsp *
pipeline_msg_handle_table_stats_read(struct pipeline_data *p,
    struct pipeline_msg_req *req)
{
    struct pipeline_msg_rsp *rsp = (struct pipeline_msg_rsp *) req;
    uint32_t port_id = req->id;
    int clear = req->table_stats_read.clear;

    rsp->status = rte_pipeline_table_stats_read(p->p,
        port_id,
        &rsp->table_stats_read.stats,
        clear);

    return rsp;
}

static int
match_convert_ipv6_depth(uint32_t depth, uint32_t *depth32)
{
    if (depth > 128)
        return -1;

    switch (depth / 32) {
    case 0:
        depth32[0] = depth;
        depth32[1] = 0;
        depth32[2] = 0;
        depth32[3] = 0;
        return 0;

    case 1:
        depth32[0] = 32;
        depth32[1] = depth - 32;
        depth32[2] = 0;
        depth32[3] = 0;
        return 0;

    case 2:
        depth32[0] = 32;
        depth32[1] = 32;
        depth32[2] = depth - 64;
        depth32[3] = 0;
        return 0;

    case 3:
        depth32[0] = 32;
        depth32[1] = 32;
        depth32[2] = 32;
        depth32[3] = depth - 96;
        return 0;

    case 4:
        depth32[0] = 32;
        depth32[1] = 32;
        depth32[2] = 32;
        depth32[3] = 32;
        return 0;

    default:
        return -1;
    }
}

static int
match_convert(struct table_rule_match *mh,
    union table_rule_match_low_level *ml,
    int add)
{
    memset(ml, 0, sizeof(*ml));

    switch (mh->match_type) {
    case TABLE_ACL:
        if (mh->match.acl.ip_version)
            if (add) {
                ml->acl_add.field_value[0].value.u8 =
                    mh->match.acl.proto;
                ml->acl_add.field_value[0].mask_range.u8 =
                    mh->match.acl.proto_mask;

                ml->acl_add.field_value[1].value.u32 =
                    mh->match.acl.ipv4.sa;
                ml->acl_add.field_value[1].mask_range.u32 =
                    mh->match.acl.sa_depth;

                ml->acl_add.field_value[2].value.u32 =
                    mh->match.acl.ipv4.da;
                ml->acl_add.field_value[2].mask_range.u32 =
                    mh->match.acl.da_depth;

                ml->acl_add.field_value[3].value.u16 =
                    mh->match.acl.sp0;
                ml->acl_add.field_value[3].mask_range.u16 =
                    mh->match.acl.sp1;

                ml->acl_add.field_value[4].value.u16 =
                    mh->match.acl.dp0;
                ml->acl_add.field_value[4].mask_range.u16 =
                    mh->match.acl.dp1;

                ml->acl_add.priority =
                    (int32_t) mh->match.acl.priority;
            } else {
                ml->acl_delete.field_value[0].value.u8 =
                    mh->match.acl.proto;
                ml->acl_delete.field_value[0].mask_range.u8 =
                    mh->match.acl.proto_mask;

                ml->acl_delete.field_value[1].value.u32 =
                    mh->match.acl.ipv4.sa;
                ml->acl_delete.field_value[1].mask_range.u32 =
                    mh->match.acl.sa_depth;

                ml->acl_delete.field_value[2].value.u32 =
                    mh->match.acl.ipv4.da;
                ml->acl_delete.field_value[2].mask_range.u32 =
                    mh->match.acl.da_depth;

                ml->acl_delete.field_value[3].value.u16 =
                    mh->match.acl.sp0;
                ml->acl_delete.field_value[3].mask_range.u16 =
                    mh->match.acl.sp1;

                ml->acl_delete.field_value[4].value.u16 =
                    mh->match.acl.dp0;
                ml->acl_delete.field_value[4].mask_range.u16 =
                    mh->match.acl.dp1;
            }
        else
            if (add) {
                uint32_t *sa32 =
                    (uint32_t *) mh->match.acl.ipv6.sa;
                uint32_t *da32 =
                    (uint32_t *) mh->match.acl.ipv6.da;
                uint32_t sa32_depth[4], da32_depth[4];
                int status;

                status = match_convert_ipv6_depth(
                    mh->match.acl.sa_depth,
                    sa32_depth);
                if (status)
                    return status;

                status = match_convert_ipv6_depth(
                    mh->match.acl.da_depth,
                    da32_depth);
                if (status)
                    return status;

                ml->acl_add.field_value[0].value.u8 =
                    mh->match.acl.proto;
                ml->acl_add.field_value[0].mask_range.u8 =
                    mh->match.acl.proto_mask;

                ml->acl_add.field_value[1].value.u32 =
                    rte_be_to_cpu_32(sa32[0]);
                ml->acl_add.field_value[1].mask_range.u32 =
                    sa32_depth[0];
                ml->acl_add.field_value[2].value.u32 =
                    rte_be_to_cpu_32(sa32[1]);
                ml->acl_add.field_value[2].mask_range.u32 =
                    sa32_depth[1];
                ml->acl_add.field_value[3].value.u32 =
                    rte_be_to_cpu_32(sa32[2]);
                ml->acl_add.field_value[3].mask_range.u32 =
                    sa32_depth[2];
                ml->acl_add.field_value[4].value.u32 =
                    rte_be_to_cpu_32(sa32[3]);
                ml->acl_add.field_value[4].mask_range.u32 =
                    sa32_depth[3];

                ml->acl_add.field_value[5].value.u32 =
                    rte_be_to_cpu_32(da32[0]);
                ml->acl_add.field_value[5].mask_range.u32 =
                    da32_depth[0];
                ml->acl_add.field_value[6].value.u32 =
                    rte_be_to_cpu_32(da32[1]);
                ml->acl_add.field_value[6].mask_range.u32 =
                    da32_depth[1];
                ml->acl_add.field_value[7].value.u32 =
                    rte_be_to_cpu_32(da32[2]);
                ml->acl_add.field_value[7].mask_range.u32 =
                    da32_depth[2];
                ml->acl_add.field_value[8].value.u32 =
                    rte_be_to_cpu_32(da32[3]);
                ml->acl_add.field_value[8].mask_range.u32 =
                    da32_depth[3];

                ml->acl_add.field_value[9].value.u16 =
                    mh->match.acl.sp0;
                ml->acl_add.field_value[9].mask_range.u16 =
                    mh->match.acl.sp1;

                ml->acl_add.field_value[10].value.u16 =
                    mh->match.acl.dp0;
                ml->acl_add.field_value[10].mask_range.u16 =
                    mh->match.acl.dp1;

                ml->acl_add.priority =
                    (int32_t) mh->match.acl.priority;
            } else {
                uint32_t *sa32 =
                    (uint32_t *) mh->match.acl.ipv6.sa;
                uint32_t *da32 =
                    (uint32_t *) mh->match.acl.ipv6.da;
                uint32_t sa32_depth[4], da32_depth[4];
                int status;

                status = match_convert_ipv6_depth(
                    mh->match.acl.sa_depth,
                    sa32_depth);
                if (status)
                    return status;

                status = match_convert_ipv6_depth(
                    mh->match.acl.da_depth,
                    da32_depth);
                if (status)
                    return status;

                ml->acl_delete.field_value[0].value.u8 =
                    mh->match.acl.proto;
                ml->acl_delete.field_value[0].mask_range.u8 =
                    mh->match.acl.proto_mask;

                ml->acl_delete.field_value[1].value.u32 =
                    rte_be_to_cpu_32(sa32[0]);
                ml->acl_delete.field_value[1].mask_range.u32 =
                    sa32_depth[0];
                ml->acl_delete.field_value[2].value.u32 =
                    rte_be_to_cpu_32(sa32[1]);
                ml->acl_delete.field_value[2].mask_range.u32 =
                    sa32_depth[1];
                ml->acl_delete.field_value[3].value.u32 =
                    rte_be_to_cpu_32(sa32[2]);
                ml->acl_delete.field_value[3].mask_range.u32 =
                    sa32_depth[2];
                ml->acl_delete.field_value[4].value.u32 =
                    rte_be_to_cpu_32(sa32[3]);
                ml->acl_delete.field_value[4].mask_range.u32 =
                    sa32_depth[3];

                ml->acl_delete.field_value[5].value.u32 =
                    rte_be_to_cpu_32(da32[0]);
                ml->acl_delete.field_value[5].mask_range.u32 =
                    da32_depth[0];
                ml->acl_delete.field_value[6].value.u32 =
                    rte_be_to_cpu_32(da32[1]);
                ml->acl_delete.field_value[6].mask_range.u32 =
                    da32_depth[1];
                ml->acl_delete.field_value[7].value.u32 =
                    rte_be_to_cpu_32(da32[2]);
                ml->acl_delete.field_value[7].mask_range.u32 =
                    da32_depth[2];
                ml->acl_delete.field_value[8].value.u32 =
                    rte_be_to_cpu_32(da32[3]);
                ml->acl_delete.field_value[8].mask_range.u32 =
                    da32_depth[3];

                ml->acl_delete.field_value[9].value.u16 =
                    mh->match.acl.sp0;
                ml->acl_delete.field_value[9].mask_range.u16 =
                    mh->match.acl.sp1;

                ml->acl_delete.field_value[10].value.u16 =
                    mh->match.acl.dp0;
                ml->acl_delete.field_value[10].mask_range.u16 =
                    mh->match.acl.dp1;
            }
        return 0;

    case TABLE_ARRAY:
        ml->array.pos = mh->match.array.pos;
        return 0;

    case TABLE_HASH:
        memcpy(ml->hash, mh->match.hash.key, sizeof(ml->hash));
        return 0;

    case TABLE_LPM:
        if (mh->match.lpm.ip_version) {
            ml->lpm_ipv4.ip = mh->match.lpm.ipv4;
            ml->lpm_ipv4.depth = mh->match.lpm.depth;
        } else {
            memcpy(ml->lpm_ipv6.ip,
                mh->match.lpm.ipv6, sizeof(ml->lpm_ipv6.ip));
            ml->lpm_ipv6.depth = mh->match.lpm.depth;
        }

        return 0;

    default:
        return -1;
    }
}

static int
action_convert(struct rte_table_action *a,
    struct table_rule_action *action,
    struct rte_pipeline_table_entry *data)
{
    int status;

    /* Apply actions */
    if (action->action_mask & (1LLU << RTE_TABLE_ACTION_FWD)) {
        status = rte_table_action_apply(a,
            data,
            RTE_TABLE_ACTION_FWD,
            &action->fwd);

        if (status)
            return status;
    }

    if (action->action_mask & (1LLU << RTE_TABLE_ACTION_LB)) {
        status = rte_table_action_apply(a,
            data,
            RTE_TABLE_ACTION_LB,
            &action->lb);

        if (status)
            return status;
    }

    if (action->action_mask & (1LLU << RTE_TABLE_ACTION_MTR)) {
        status = rte_table_action_apply(a,
            data,
            RTE_TABLE_ACTION_MTR,
            &action->mtr);

        if (status)
            return status;
    }

    if (action->action_mask & (1LLU << RTE_TABLE_ACTION_TM)) {
        status = rte_table_action_apply(a,
            data,
            RTE_TABLE_ACTION_TM,
            &action->tm);

        if (status)
            return status;
    }

    if (action->action_mask & (1LLU << RTE_TABLE_ACTION_ENCAP)) {
        status = rte_table_action_apply(a,
            data,
            RTE_TABLE_ACTION_ENCAP,
            &action->encap);

        if (status)
            return status;
    }

    if (action->action_mask & (1LLU << RTE_TABLE_ACTION_NAT)) {
        status = rte_table_action_apply(a,
            data,
            RTE_TABLE_ACTION_NAT,
            &action->nat);

        if (status)
            return status;
    }

    if (action->action_mask & (1LLU << RTE_TABLE_ACTION_TTL)) {
        status = rte_table_action_apply(a,
            data,
            RTE_TABLE_ACTION_TTL,
            &action->ttl);

        if (status)
            return status;
    }

    if (action->action_mask & (1LLU << RTE_TABLE_ACTION_STATS)) {
        status = rte_table_action_apply(a,
            data,
            RTE_TABLE_ACTION_STATS,
            &action->stats);

        if (status)
            return status;
    }

    if (action->action_mask & (1LLU << RTE_TABLE_ACTION_TIME)) {
        status = rte_table_action_apply(a,
            data,
            RTE_TABLE_ACTION_TIME,
            &action->time);

        if (status)
            return status;
    }

    if (action->action_mask & (1LLU << RTE_TABLE_ACTION_SYM_CRYPTO)) {
        status = rte_table_action_apply(a,
            data,
            RTE_TABLE_ACTION_SYM_CRYPTO,
            &action->sym_crypto);

        if (status)
            return status;
    }

    if (action->action_mask & (1LLU << RTE_TABLE_ACTION_TAG)) {
        status = rte_table_action_apply(a,
            data,
            RTE_TABLE_ACTION_TAG,
            &action->tag);

        if (status)
            return status;
    }

    if (action->action_mask & (1LLU << RTE_TABLE_ACTION_DECAP)) {
        status = rte_table_action_apply(a,
            data,
            RTE_TABLE_ACTION_DECAP,
            &action->decap);

        if (status)
            return status;
    }

    return 0;
}

static struct pipeline_msg_rsp *
pipeline_msg_handle_table_rule_add(struct pipeline_data *p,
    struct pipeline_msg_req *req)
{
    union table_rule_match_low_level match_ll;
    struct pipeline_msg_rsp *rsp = (struct pipeline_msg_rsp *) req;
    struct table_rule_match *match = &req->table_rule_add.match;
    struct table_rule_action *action = &req->table_rule_add.action;
    struct rte_pipeline_table_entry *data_in, *data_out;
    uint32_t table_id = req->id;
    int key_found, status;
    struct rte_table_action *a = p->table_data[table_id].a;

    /* Apply actions */
    memset(p->buffer, 0, sizeof(p->buffer));
    data_in = (struct rte_pipeline_table_entry *) p->buffer;

    status = match_convert(match, &match_ll, 1);
    if (status) {
        rsp->status = -1;
        return rsp;
    }

    status = action_convert(a, action, data_in);
    if (status) {
        rsp->status = -1;
        return rsp;
    }

    status = rte_pipeline_table_entry_add(p->p,
        table_id,
        &match_ll,
        data_in,
        &key_found,
        &data_out);
    if (status) {
        rsp->status = -1;
        return rsp;
    }

    /* Write response */
    rsp->status = 0;
    rsp->table_rule_add.data = data_out;

    return rsp;
}

static struct pipeline_msg_rsp *
pipeline_msg_handle_table_rule_add_default(struct pipeline_data *p,
    struct pipeline_msg_req *req)
{
    struct pipeline_msg_rsp *rsp = (struct pipeline_msg_rsp *) req;
    struct table_rule_action *action = &req->table_rule_add_default.action;
    struct rte_pipeline_table_entry *data_in, *data_out;
    uint32_t table_id = req->id;
    int status;

    /* Apply actions */
    memset(p->buffer, 0, sizeof(p->buffer));
    data_in = (struct rte_pipeline_table_entry *) p->buffer;

    data_in->action = action->fwd.action;
    if (action->fwd.action == RTE_PIPELINE_ACTION_PORT)
        data_in->port_id = action->fwd.id;
    if (action->fwd.action == RTE_PIPELINE_ACTION_TABLE)
        data_in->table_id = action->fwd.id;

    /* Add default rule to table */
    status = rte_pipeline_table_default_entry_add(p->p,
        table_id,
        data_in,
        &data_out);
    if (status) {
        rsp->status = -1;
        return rsp;
    }

    /* Write response */
    rsp->status = 0;
    rsp->table_rule_add_default.data = data_out;

    return rsp;
}

static struct pipeline_msg_rsp *
pipeline_msg_handle_table_rule_add_bulk(struct pipeline_data *p,
    struct pipeline_msg_req *req)
{
    struct pipeline_msg_rsp *rsp = (struct pipeline_msg_rsp *) req;

    uint32_t table_id = req->id;
    struct table_rule_list *list = req->table_rule_add_bulk.list;
    uint32_t bulk = req->table_rule_add_bulk.bulk;

    uint32_t n_rules_added;
    int status;

    struct table_ll table_ll = {
        .p = p->p,
        .table_id = table_id,
        .a = p->table_data[table_id].a,
        .bulk_supported = bulk,
    };

    status = table_rule_add_bulk_ll(&table_ll, list, &n_rules_added);
    if (status) {
        rsp->status = -1;
        rsp->table_rule_add_bulk.n_rules = 0;
        return rsp;
    }

    /* Write response */
    rsp->status = 0;
    rsp->table_rule_add_bulk.n_rules = n_rules_added;
    return rsp;
}

static struct pipeline_msg_rsp *
pipeline_msg_handle_table_rule_delete(struct pipeline_data *p,
    struct pipeline_msg_req *req)
{
    union table_rule_match_low_level match_ll;
    struct pipeline_msg_rsp *rsp = (struct pipeline_msg_rsp *) req;
    struct table_rule_match *match = &req->table_rule_delete.match;
    uint32_t table_id = req->id;
    int key_found, status;

    status = match_convert(match, &match_ll, 0);
    if (status) {
        rsp->status = -1;
        return rsp;
    }

    rsp->status = rte_pipeline_table_entry_delete(p->p,
        table_id,
        &match_ll,
        &key_found,
        NULL);

    return rsp;
}

static struct pipeline_msg_rsp *
pipeline_msg_handle_table_rule_delete_default(struct pipeline_data *p,
    struct pipeline_msg_req *req)
{
    struct pipeline_msg_rsp *rsp = (struct pipeline_msg_rsp *) req;
    uint32_t table_id = req->id;

    rsp->status = rte_pipeline_table_default_entry_delete(p->p,
        table_id,
        NULL);

    return rsp;
}

static struct pipeline_msg_rsp *
pipeline_msg_handle_table_rule_stats_read(struct pipeline_data *p,
    struct pipeline_msg_req *req)
{
    struct pipeline_msg_rsp *rsp = (struct pipeline_msg_rsp *) req;
    uint32_t table_id = req->id;
    void *data = req->table_rule_stats_read.data;
    int clear = req->table_rule_stats_read.clear;
    struct rte_table_action *a = p->table_data[table_id].a;

    rsp->status = rte_table_action_stats_read(a,
        data,
        &rsp->table_rule_stats_read.stats,
        clear);

    return rsp;
}

static struct pipeline_msg_rsp *
pipeline_msg_handle_table_mtr_profile_add(struct pipeline_data *p,
    struct pipeline_msg_req *req)
{
    struct pipeline_msg_rsp *rsp = (struct pipeline_msg_rsp *) req;
    uint32_t table_id = req->id;
    uint32_t meter_profile_id = req->table_mtr_profile_add.meter_profile_id;
    struct rte_table_action_meter_profile *profile =
        &req->table_mtr_profile_add.profile;
    struct rte_table_action *a = p->table_data[table_id].a;

    rsp->status = rte_table_action_meter_profile_add(a,
        meter_profile_id,
        profile);

    return rsp;
}

static struct pipeline_msg_rsp *
pipeline_msg_handle_table_mtr_profile_delete(struct pipeline_data *p,
    struct pipeline_msg_req *req)
{
    struct pipeline_msg_rsp *rsp = (struct pipeline_msg_rsp *) req;
    uint32_t table_id = req->id;
    uint32_t meter_profile_id =
        req->table_mtr_profile_delete.meter_profile_id;
    struct rte_table_action *a = p->table_data[table_id].a;

    rsp->status = rte_table_action_meter_profile_delete(a,
        meter_profile_id);

    return rsp;
}

static struct pipeline_msg_rsp *
pipeline_msg_handle_table_rule_mtr_read(struct pipeline_data *p,
    struct pipeline_msg_req *req)
{
    struct pipeline_msg_rsp *rsp = (struct pipeline_msg_rsp *) req;
    uint32_t table_id = req->id;
    void *data = req->table_rule_mtr_read.data;
    uint32_t tc_mask = req->table_rule_mtr_read.tc_mask;
    int clear = req->table_rule_mtr_read.clear;
    struct rte_table_action *a = p->table_data[table_id].a;

    rsp->status = rte_table_action_meter_read(a,
        data,
        tc_mask,
        &rsp->table_rule_mtr_read.stats,
        clear);

    return rsp;
}

static struct pipeline_msg_rsp *
pipeline_msg_handle_table_dscp_table_update(struct pipeline_data *p,
    struct pipeline_msg_req *req)
{
    struct pipeline_msg_rsp *rsp = (struct pipeline_msg_rsp *) req;
    uint32_t table_id = req->id;
    uint64_t dscp_mask = req->table_dscp_table_update.dscp_mask;
    struct rte_table_action_dscp_table *dscp_table =
        &req->table_dscp_table_update.dscp_table;
    struct rte_table_action *a = p->table_data[table_id].a;

    rsp->status = rte_table_action_dscp_table_update(a,
        dscp_mask,
        dscp_table);

    return rsp;
}

static struct pipeline_msg_rsp *
pipeline_msg_handle_table_rule_ttl_read(struct pipeline_data *p,
    struct pipeline_msg_req *req)
{
    struct pipeline_msg_rsp *rsp = (struct pipeline_msg_rsp *) req;
    uint32_t table_id = req->id;
    void *data = req->table_rule_ttl_read.data;
    int clear = req->table_rule_ttl_read.clear;
    struct rte_table_action *a = p->table_data[table_id].a;

    rsp->status = rte_table_action_ttl_read(a,
        data,
        &rsp->table_rule_ttl_read.stats,
        clear);

    return rsp;
}

static struct pipeline_msg_rsp *
pipeline_msg_handle_table_rule_time_read(struct pipeline_data *p,
    struct pipeline_msg_req *req)
{
    struct pipeline_msg_rsp *rsp = (struct pipeline_msg_rsp *) req;
    uint32_t table_id = req->id;
    void *data = req->table_rule_time_read.data;
    struct rte_table_action *a = p->table_data[table_id].a;

    rsp->status = rte_table_action_time_read(a,
        data,
        &rsp->table_rule_time_read.timestamp);

    return rsp;
}

static void
pipeline_msg_handle(struct pipeline_data *p)
{
    for ( ; ; ) {
        struct pipeline_msg_req *req;
        struct pipeline_msg_rsp *rsp;

        req = pipeline_msg_recv(p->msgq_req);
        if (req == NULL)
            break;

        switch (req->type) {
        case PIPELINE_REQ_PORT_IN_STATS_READ:
            rsp = pipeline_msg_handle_port_in_stats_read(p, req);
            break;

        case PIPELINE_REQ_PORT_IN_ENABLE:
            rsp = pipeline_msg_handle_port_in_enable(p, req);
            break;

        case PIPELINE_REQ_PORT_IN_DISABLE:
            rsp = pipeline_msg_handle_port_in_disable(p, req);
            break;

        case PIPELINE_REQ_PORT_OUT_STATS_READ:
            rsp = pipeline_msg_handle_port_out_stats_read(p, req);
            break;

        case PIPELINE_REQ_TABLE_STATS_READ:
            rsp = pipeline_msg_handle_table_stats_read(p, req);
            break;

        case PIPELINE_REQ_TABLE_RULE_ADD:
            rsp = pipeline_msg_handle_table_rule_add(p, req);
            break;

        case PIPELINE_REQ_TABLE_RULE_ADD_DEFAULT:
            rsp = pipeline_msg_handle_table_rule_add_default(p, req);
            break;

        case PIPELINE_REQ_TABLE_RULE_ADD_BULK:
            rsp = pipeline_msg_handle_table_rule_add_bulk(p, req);
            break;

        case PIPELINE_REQ_TABLE_RULE_DELETE:
            rsp = pipeline_msg_handle_table_rule_delete(p, req);
            break;

        case PIPELINE_REQ_TABLE_RULE_DELETE_DEFAULT:
            rsp = pipeline_msg_handle_table_rule_delete_default(p, req);
            break;

        case PIPELINE_REQ_TABLE_RULE_STATS_READ:
            rsp = pipeline_msg_handle_table_rule_stats_read(p, req);
            break;

        case PIPELINE_REQ_TABLE_MTR_PROFILE_ADD:
            rsp = pipeline_msg_handle_table_mtr_profile_add(p, req);
            break;

        case PIPELINE_REQ_TABLE_MTR_PROFILE_DELETE:
            rsp = pipeline_msg_handle_table_mtr_profile_delete(p, req);
            break;

        case PIPELINE_REQ_TABLE_RULE_MTR_READ:
            rsp = pipeline_msg_handle_table_rule_mtr_read(p, req);
            break;

        case PIPELINE_REQ_TABLE_DSCP_TABLE_UPDATE:
            rsp = pipeline_msg_handle_table_dscp_table_update(p, req);
            break;

        case PIPELINE_REQ_TABLE_RULE_TTL_READ:
            rsp = pipeline_msg_handle_table_rule_ttl_read(p, req);
            break;

        case PIPELINE_REQ_TABLE_RULE_TIME_READ:
            rsp = pipeline_msg_handle_table_rule_time_read(p, req);
            break;

        default:
            rsp = (struct pipeline_msg_rsp *) req;
            rsp->status = -1;
        }

        pipeline_msg_send(p->msgq_rsp, rsp);
    }
}

int
thread_main(void *arg __rte_unused)
{
    struct thread_data *t;
    uint32_t thread_id, i;

    thread_id = rte_lcore_id();
    t = &thread_data[thread_id];

    /* Dispatch loop */
    for (i = 0; ; i++) {
        uint32_t j;

        /* Data Plane */
        for (j = 0; j < t->n_pipelines; j++)
            rte_pipeline_run(t->p[j]);

        /* Control Plane */
        if ((i & 0xF) == 0) {
            uint64_t time = rte_get_tsc_cycles();
            uint64_t time_next_min = UINT64_MAX;

            if (time < t->time_next_min)
                continue;

            /* Pipeline message queues */
            for (j = 0; j < t->n_pipelines; j++) {
                struct pipeline_data *p =
                    &t->pipeline_data[j];
                uint64_t time_next = p->time_next;

                if (time_next <= time) {
                    pipeline_msg_handle(p);
                    rte_pipeline_flush(p->p);
                    time_next = time + p->timer_period;
                    p->time_next = time_next;
                }

                if (time_next < time_next_min)
                    time_next_min = time_next;
            }

            /* Thread message queues */
            {
                uint64_t time_next = t->time_next;

                if (time_next <= time) {
                    thread_msg_handle(t);
                    time_next = time + t->timer_period;
                    t->time_next = time_next;
                }

                if (time_next < time_next_min)
                    time_next_min = time_next;
            }

            t->time_next_min = time_next_min;
        }
    }

    return 0;
}