ip_pipeline/pipeline/pipeline_flow_actions_be.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 <string.h>

#include <rte_common.h>
#include <rte_malloc.h>
#include <rte_cycles.h>
#include <rte_table_array.h>
#include <rte_byteorder.h>
#include <rte_ip.h>

#include "pipeline_actions_common.h"
#include "pipeline_flow_actions_be.h"
#include "parser.h"
#include "hash_func.h"

int
pipeline_fa_flow_params_set_default(struct pipeline_fa_flow_params *params)
{
        uint32_t i;

        if (params == NULL)
                return -1;

        for (i = 0; i < PIPELINE_FA_N_TC_MAX; i++) {
                struct rte_meter_trtcm_params *m = &params->m[i];

                m->cir = 1;
                m->cbs = 1;
                m->pir = 1;
                m->pbs = 2;
        }

        for (i = 0; i < PIPELINE_FA_N_TC_MAX; i++) {
                struct pipeline_fa_policer_params *p = &params->p[i];
                uint32_t j;

                for (j = 0; j < e_RTE_METER_COLORS; j++) {
                        struct pipeline_fa_policer_action *a = &p->action[j];

                        a->drop = 0;
                        a->color = (enum rte_meter_color) j;
                }
        }

        params->port_id = 0;

        return 0;
}

struct dscp_entry {
        uint32_t traffic_class;
        enum rte_meter_color color;
};

struct pipeline_flow_actions {
        struct pipeline p;
        struct pipeline_fa_params params;
        pipeline_msg_req_handler custom_handlers[PIPELINE_FA_MSG_REQS];

        struct dscp_entry dscp[PIPELINE_FA_N_DSCP];
} __rte_cache_aligned;

static void *
pipeline_fa_msg_req_custom_handler(struct pipeline *p, void *msg);

static pipeline_msg_req_handler handlers[] = {
        [PIPELINE_MSG_REQ_PING] =
                pipeline_msg_req_ping_handler,
        [PIPELINE_MSG_REQ_STATS_PORT_IN] =
                pipeline_msg_req_stats_port_in_handler,
        [PIPELINE_MSG_REQ_STATS_PORT_OUT] =
                pipeline_msg_req_stats_port_out_handler,
        [PIPELINE_MSG_REQ_STATS_TABLE] =
                pipeline_msg_req_stats_table_handler,
        [PIPELINE_MSG_REQ_PORT_IN_ENABLE] =
                pipeline_msg_req_port_in_enable_handler,
        [PIPELINE_MSG_REQ_PORT_IN_DISABLE] =
                pipeline_msg_req_port_in_disable_handler,
        [PIPELINE_MSG_REQ_CUSTOM] =
                pipeline_fa_msg_req_custom_handler,
};

static void *
pipeline_fa_msg_req_flow_config_handler(struct pipeline *p, void *msg);

static void *
pipeline_fa_msg_req_flow_config_bulk_handler(struct pipeline *p, void *msg);

static void *
pipeline_fa_msg_req_dscp_config_handler(struct pipeline *p, void *msg);

static void *
pipeline_fa_msg_req_policer_stats_read_handler(struct pipeline *p, void *msg);

static pipeline_msg_req_handler custom_handlers[] = {
        [PIPELINE_FA_MSG_REQ_FLOW_CONFIG] =
                pipeline_fa_msg_req_flow_config_handler,
        [PIPELINE_FA_MSG_REQ_FLOW_CONFIG_BULK] =
                pipeline_fa_msg_req_flow_config_bulk_handler,
        [PIPELINE_FA_MSG_REQ_DSCP_CONFIG] =
                pipeline_fa_msg_req_dscp_config_handler,
        [PIPELINE_FA_MSG_REQ_POLICER_STATS_READ] =
                pipeline_fa_msg_req_policer_stats_read_handler,
};

/*
 * Flow table
 */
struct meter_policer {
        struct rte_meter_trtcm meter;
        struct pipeline_fa_policer_params policer;
        struct pipeline_fa_policer_stats stats;
};

struct flow_table_entry {
        struct rte_pipeline_table_entry head;
        struct meter_policer mp[PIPELINE_FA_N_TC_MAX];
};

static int
flow_table_entry_set_meter(struct flow_table_entry *entry,
        uint32_t meter_id,
        struct pipeline_fa_flow_params *params)
{
        struct rte_meter_trtcm *meter = &entry->mp[meter_id].meter;
        struct rte_meter_trtcm_params *meter_params = &params->m[meter_id];

        return rte_meter_trtcm_config(meter, meter_params);
}

static void
flow_table_entry_set_policer(struct flow_table_entry *entry,
        uint32_t policer_id,
        struct pipeline_fa_flow_params *params)
{
        struct pipeline_fa_policer_params *p0 = &entry->mp[policer_id].policer;
        struct pipeline_fa_policer_params *p1 = &params->p[policer_id];

        memcpy(p0, p1, sizeof(*p0));
}

static void
flow_table_entry_set_port_id(struct pipeline_flow_actions *p,
        struct flow_table_entry *entry,
        struct pipeline_fa_flow_params *params)
{
        entry->head.action = RTE_PIPELINE_ACTION_PORT;
        entry->head.port_id = p->p.port_out_id[params->port_id];
}

static int
flow_table_entry_set_default(struct pipeline_flow_actions *p,
        struct flow_table_entry *entry)
{
        struct pipeline_fa_flow_params params;
        uint32_t i;

        pipeline_fa_flow_params_set_default(&params);

        memset(entry, 0, sizeof(*entry));

        flow_table_entry_set_port_id(p, entry, &params);

        for (i = 0; i < PIPELINE_FA_N_TC_MAX; i++) {
                int status;

                status = flow_table_entry_set_meter(entry, i, &params);
                if (status)
                        return status;
        }

        for (i = 0; i < PIPELINE_FA_N_TC_MAX; i++)
                flow_table_entry_set_policer(entry, i, &params);

        return 0;
}

static inline uint64_t
pkt_work(
        struct rte_mbuf *pkt,
        struct rte_pipeline_table_entry *table_entry,
        void *arg,
        uint64_t time)
{
        struct pipeline_flow_actions *p = arg;
        struct flow_table_entry *entry =
                (struct flow_table_entry *) table_entry;

        struct ipv4_hdr *pkt_ip = (struct ipv4_hdr *)
                RTE_MBUF_METADATA_UINT32_PTR(pkt, p->params.ip_hdr_offset);
        enum rte_meter_color *pkt_color = (enum rte_meter_color *)
                RTE_MBUF_METADATA_UINT32_PTR(pkt, p->params.color_offset);

        /* Read (IP header) */
        uint32_t total_length = rte_bswap16(pkt_ip->total_length);
        uint32_t dscp = pkt_ip->type_of_service >> 2;

        uint32_t tc = p->dscp[dscp].traffic_class;
        enum rte_meter_color color = p->dscp[dscp].color;

        struct rte_meter_trtcm *meter = &entry->mp[tc].meter;
        struct pipeline_fa_policer_params *policer = &entry->mp[tc].policer;
        struct pipeline_fa_policer_stats *stats = &entry->mp[tc].stats;

        /* Read (entry), compute */
        enum rte_meter_color color2 = rte_meter_trtcm_color_aware_check(meter,
                time,
                total_length,
                color);

        enum rte_meter_color color3 = policer->action[color2].color;
        uint64_t drop = policer->action[color2].drop;

        /* Read (entry), write (entry, color) */
        stats->n_pkts[color3] += drop ^ 1LLU;
        stats->n_pkts_drop += drop;
        *pkt_color = color3;

        return drop;
}

static inline uint64_t
pkt4_work(
        struct rte_mbuf **pkts,
        struct rte_pipeline_table_entry **table_entries,
        void *arg,
        uint64_t time)
{
        struct pipeline_flow_actions *p = arg;

        struct flow_table_entry *entry0 =
                (struct flow_table_entry *) table_entries[0];
        struct flow_table_entry *entry1 =
                (struct flow_table_entry *) table_entries[1];
        struct flow_table_entry *entry2 =
                (struct flow_table_entry *) table_entries[2];
        struct flow_table_entry *entry3 =
                (struct flow_table_entry *) table_entries[3];

        struct ipv4_hdr *pkt0_ip = (struct ipv4_hdr *)
                RTE_MBUF_METADATA_UINT32_PTR(pkts[0], p->params.ip_hdr_offset);
        struct ipv4_hdr *pkt1_ip = (struct ipv4_hdr *)
                RTE_MBUF_METADATA_UINT32_PTR(pkts[1], p->params.ip_hdr_offset);
        struct ipv4_hdr *pkt2_ip = (struct ipv4_hdr *)
                RTE_MBUF_METADATA_UINT32_PTR(pkts[2], p->params.ip_hdr_offset);
        struct ipv4_hdr *pkt3_ip = (struct ipv4_hdr *)
                RTE_MBUF_METADATA_UINT32_PTR(pkts[3], p->params.ip_hdr_offset);

        enum rte_meter_color *pkt0_color = (enum rte_meter_color *)
                RTE_MBUF_METADATA_UINT32_PTR(pkts[0], p->params.color_offset);
        enum rte_meter_color *pkt1_color = (enum rte_meter_color *)
                RTE_MBUF_METADATA_UINT32_PTR(pkts[1], p->params.color_offset);
        enum rte_meter_color *pkt2_color = (enum rte_meter_color *)
                RTE_MBUF_METADATA_UINT32_PTR(pkts[2], p->params.color_offset);
        enum rte_meter_color *pkt3_color = (enum rte_meter_color *)
                RTE_MBUF_METADATA_UINT32_PTR(pkts[3], p->params.color_offset);

        /* Read (IP header) */
        uint32_t total_length0 = rte_bswap16(pkt0_ip->total_length);
        uint32_t dscp0 = pkt0_ip->type_of_service >> 2;

        uint32_t total_length1 = rte_bswap16(pkt1_ip->total_length);
        uint32_t dscp1 = pkt1_ip->type_of_service >> 2;

        uint32_t total_length2 = rte_bswap16(pkt2_ip->total_length);
        uint32_t dscp2 = pkt2_ip->type_of_service >> 2;

        uint32_t total_length3 = rte_bswap16(pkt3_ip->total_length);
        uint32_t dscp3 = pkt3_ip->type_of_service >> 2;

        uint32_t tc0 = p->dscp[dscp0].traffic_class;
        enum rte_meter_color color0 = p->dscp[dscp0].color;

        uint32_t tc1 = p->dscp[dscp1].traffic_class;
        enum rte_meter_color color1 = p->dscp[dscp1].color;

        uint32_t tc2 = p->dscp[dscp2].traffic_class;
        enum rte_meter_color color2 = p->dscp[dscp2].color;

        uint32_t tc3 = p->dscp[dscp3].traffic_class;
        enum rte_meter_color color3 = p->dscp[dscp3].color;

        struct rte_meter_trtcm *meter0 = &entry0->mp[tc0].meter;
        struct pipeline_fa_policer_params *policer0 = &entry0->mp[tc0].policer;
        struct pipeline_fa_policer_stats *stats0 = &entry0->mp[tc0].stats;

        struct rte_meter_trtcm *meter1 = &entry1->mp[tc1].meter;
        struct pipeline_fa_policer_params *policer1 = &entry1->mp[tc1].policer;
        struct pipeline_fa_policer_stats *stats1 = &entry1->mp[tc1].stats;

        struct rte_meter_trtcm *meter2 = &entry2->mp[tc2].meter;
        struct pipeline_fa_policer_params *policer2 = &entry2->mp[tc2].policer;
        struct pipeline_fa_policer_stats *stats2 = &entry2->mp[tc2].stats;

        struct rte_meter_trtcm *meter3 = &entry3->mp[tc3].meter;
        struct pipeline_fa_policer_params *policer3 = &entry3->mp[tc3].policer;
        struct pipeline_fa_policer_stats *stats3 = &entry3->mp[tc3].stats;

        /* Read (entry), compute, write (entry) */
        enum rte_meter_color color2_0 = rte_meter_trtcm_color_aware_check(
                meter0,
                time,
                total_length0,
                color0);

        enum rte_meter_color color2_1 = rte_meter_trtcm_color_aware_check(
                meter1,
                time,
                total_length1,
                color1);

        enum rte_meter_color color2_2 = rte_meter_trtcm_color_aware_check(
                meter2,
                time,
                total_length2,
                color2);

        enum rte_meter_color color2_3 = rte_meter_trtcm_color_aware_check(
                meter3,
                time,
                total_length3,
                color3);

        enum rte_meter_color color3_0 = policer0->action[color2_0].color;
        enum rte_meter_color color3_1 = policer1->action[color2_1].color;
        enum rte_meter_color color3_2 = policer2->action[color2_2].color;
        enum rte_meter_color color3_3 = policer3->action[color2_3].color;

        uint64_t drop0 = policer0->action[color2_0].drop;
        uint64_t drop1 = policer1->action[color2_1].drop;
        uint64_t drop2 = policer2->action[color2_2].drop;
        uint64_t drop3 = policer3->action[color2_3].drop;

        /* Read (entry), write (entry, color) */
        stats0->n_pkts[color3_0] += drop0 ^ 1LLU;
        stats0->n_pkts_drop += drop0;

        stats1->n_pkts[color3_1] += drop1 ^ 1LLU;
        stats1->n_pkts_drop += drop1;

        stats2->n_pkts[color3_2] += drop2 ^ 1LLU;
        stats2->n_pkts_drop += drop2;

        stats3->n_pkts[color3_3] += drop3 ^ 1LLU;
        stats3->n_pkts_drop += drop3;

        *pkt0_color = color3_0;
        *pkt1_color = color3_1;
        *pkt2_color = color3_2;
        *pkt3_color = color3_3;

        return drop0 | (drop1 << 1) | (drop2 << 2) | (drop3 << 3);
}

PIPELINE_TABLE_AH_HIT_DROP_TIME(fa_table_ah_hit, pkt_work, pkt4_work);

static rte_pipeline_table_action_handler_hit
get_fa_table_ah_hit(__rte_unused struct pipeline_flow_actions *p)
{
        return fa_table_ah_hit;
}

/*
 * Argument parsing
 */
int
pipeline_fa_parse_args(struct pipeline_fa_params *p,
        struct pipeline_params *params)
{
        uint32_t n_flows_present = 0;
        uint32_t n_meters_per_flow_present = 0;
        uint32_t flow_id_offset_present = 0;
        uint32_t ip_hdr_offset_present = 0;
        uint32_t color_offset_present = 0;
        uint32_t i;

        /* Default values */
        p->n_meters_per_flow = 1;
        p->dscp_enabled = 0;

        for (i = 0; i < params->n_args; i++) {
                char *arg_name = params->args_name[i];
                char *arg_value = params->args_value[i];

                /* n_flows */
                if (strcmp(arg_name, "n_flows") == 0) {
                        int status;

                        PIPELINE_PARSE_ERR_DUPLICATE(
                                n_flows_present == 0, params->name,
                                arg_name);
                        n_flows_present = 1;

                        status = parser_read_uint32(&p->n_flows,
                                arg_value);
                        PIPELINE_PARSE_ERR_INV_VAL(((status != -EINVAL) &&
                                (p->n_flows != 0)), params->name,
                                arg_name, arg_value);
                        PIPELINE_PARSE_ERR_OUT_RNG((status != -ERANGE),
                                params->name, arg_name, arg_value);

                        continue;
                }

                /* n_meters_per_flow */
                if (strcmp(arg_name, "n_meters_per_flow") == 0) {
                        int status;

                        PIPELINE_PARSE_ERR_DUPLICATE(
                                n_meters_per_flow_present == 0,
                                params->name, arg_name);
                        n_meters_per_flow_present = 1;

                        status = parser_read_uint32(&p->n_meters_per_flow,
                                arg_value);
                        PIPELINE_PARSE_ERR_INV_VAL(((status != -EINVAL) &&
                                (p->n_meters_per_flow != 0)),
                                params->name, arg_name, arg_value);
                        PIPELINE_PARSE_ERR_OUT_RNG(((status != -ERANGE) &&
                                (p->n_meters_per_flow <=
                                PIPELINE_FA_N_TC_MAX)), params->name,
                                arg_name, arg_value);

                        continue;
                }

                /* flow_id_offset */
                if (strcmp(arg_name, "flow_id_offset") == 0) {
                        int status;

                        PIPELINE_PARSE_ERR_DUPLICATE(
                                flow_id_offset_present == 0,
                                params->name, arg_name);
                        flow_id_offset_present = 1;

                        status = parser_read_uint32(&p->flow_id_offset,
                                arg_value);
                        PIPELINE_PARSE_ERR_INV_VAL((status != -EINVAL),
                                params->name, arg_name, arg_value);
                        PIPELINE_PARSE_ERR_OUT_RNG((status != -ERANGE),
                                params->name, arg_name, arg_value);

                        continue;
                }

                /* ip_hdr_offset */
                if (strcmp(arg_name, "ip_hdr_offset") == 0) {
                        int status;

                        PIPELINE_PARSE_ERR_DUPLICATE(
                                ip_hdr_offset_present == 0,
                                params->name, arg_name);
                        ip_hdr_offset_present = 1;

                        status = parser_read_uint32(&p->ip_hdr_offset,
                                arg_value);
                        PIPELINE_PARSE_ERR_INV_VAL((status != -EINVAL),
                                params->name, arg_name, arg_value);
                        PIPELINE_PARSE_ERR_OUT_RNG((status != -ERANGE),
                                params->name, arg_name, arg_value);

                        continue;
                }

                /* color_offset */
                if (strcmp(arg_name, "color_offset") == 0) {
                        int status;

                        PIPELINE_PARSE_ERR_DUPLICATE(
                                color_offset_present == 0, params->name,
                                arg_name);
                        color_offset_present = 1;

                        status = parser_read_uint32(&p->color_offset,
                                arg_value);
                        PIPELINE_PARSE_ERR_INV_VAL((status != -EINVAL),
                                params->name, arg_name, arg_value);
                        PIPELINE_PARSE_ERR_OUT_RNG((status != -ERANGE),
                                params->name, arg_name, arg_value);

                        p->dscp_enabled = 1;

                        continue;
                }

                /* Unknown argument */
                PIPELINE_PARSE_ERR_INV_ENT(0, params->name, arg_name);
        }

        /* Check that mandatory arguments are present */
        PIPELINE_PARSE_ERR_MANDATORY((n_flows_present), params->name,
                "n_flows");
        PIPELINE_PARSE_ERR_MANDATORY((flow_id_offset_present),
                params->name, "flow_id_offset");
        PIPELINE_PARSE_ERR_MANDATORY((ip_hdr_offset_present),
                params->name, "ip_hdr_offset");
        PIPELINE_PARSE_ERR_MANDATORY((color_offset_present), params->name,
                "color_offset");

        return 0;
}

static void
dscp_init(struct pipeline_flow_actions *p)
{
        uint32_t i;

        for (i = 0; i < PIPELINE_FA_N_DSCP; i++) {
                p->dscp[i].traffic_class = 0;
                p->dscp[i].color = e_RTE_METER_GREEN;
        }
}

static void *pipeline_fa_init(struct pipeline_params *params,
        __rte_unused void *arg)
{
        struct pipeline *p;
        struct pipeline_flow_actions *p_fa;
        uint32_t size, i;

        /* Check input arguments */
        if (params == NULL)
                return NULL;

        if (params->n_ports_in != params->n_ports_out)
                return NULL;

        /* Memory allocation */
        size = RTE_CACHE_LINE_ROUNDUP(
                sizeof(struct pipeline_flow_actions));
        p = rte_zmalloc(NULL, size, RTE_CACHE_LINE_SIZE);
        if (p == NULL)
                return NULL;
        p_fa = (struct pipeline_flow_actions *) p;

        strcpy(p->name, params->name);
        p->log_level = params->log_level;

        PLOG(p, HIGH, "Flow actions");

        /* Parse arguments */
        if (pipeline_fa_parse_args(&p_fa->params, params))
                return NULL;

        dscp_init(p_fa);

        /* Pipeline */
        {
                struct rte_pipeline_params pipeline_params = {
                        .name = params->name,
                        .socket_id = params->socket_id,
                        .offset_port_id = 0,
                };

                p->p = rte_pipeline_create(&pipeline_params);
                if (p->p == NULL) {
                        rte_free(p);
                        return NULL;
                }
        }

        /* Input ports */
        p->n_ports_in = params->n_ports_in;
        for (i = 0; i < p->n_ports_in; i++) {
                struct rte_pipeline_port_in_params port_params = {
                        .ops = pipeline_port_in_params_get_ops(
                                &params->port_in[i]),
                        .arg_create = pipeline_port_in_params_convert(
                                &params->port_in[i]),
                        .f_action = NULL,
                        .arg_ah = NULL,
                        .burst_size = params->port_in[i].burst_size,
                };

                int status = rte_pipeline_port_in_create(p->p,
                        &port_params,
                        &p->port_in_id[i]);

                if (status) {
                        rte_pipeline_free(p->p);
                        rte_free(p);
                        return NULL;
                }
        }

        /* Output ports */
        p->n_ports_out = params->n_ports_out;
        for (i = 0; i < p->n_ports_out; i++) {
                struct rte_pipeline_port_out_params port_params = {
                        .ops = pipeline_port_out_params_get_ops(
                                &params->port_out[i]),
                        .arg_create = pipeline_port_out_params_convert(
                                &params->port_out[i]),
                        .f_action = NULL,
                        .arg_ah = NULL,
                };

                int status = rte_pipeline_port_out_create(p->p,
                        &port_params,
                        &p->port_out_id[i]);

                if (status) {
                        rte_pipeline_free(p->p);
                        rte_free(p);
                        return NULL;
                }
        }

        /* Tables */
        p->n_tables = 1;
        {
                struct rte_table_array_params table_array_params = {
                        .n_entries = p_fa->params.n_flows,
                        .offset = p_fa->params.flow_id_offset,
                };

                struct rte_pipeline_table_params table_params = {
                        .ops = &rte_table_array_ops,
                        .arg_create = &table_array_params,
                        .f_action_hit = get_fa_table_ah_hit(p_fa),
                        .f_action_miss = NULL,
                        .arg_ah = p_fa,
                        .action_data_size =
                                sizeof(struct flow_table_entry) -
                                sizeof(struct rte_pipeline_table_entry),
                };

                int status;

                status = rte_pipeline_table_create(p->p,
                        &table_params,
                        &p->table_id[0]);

                if (status) {
                        rte_pipeline_free(p->p);
                        rte_free(p);
                        return NULL;
                }
        }

        /* Connecting input ports to tables */
        for (i = 0; i < p->n_ports_in; i++) {
                int status = rte_pipeline_port_in_connect_to_table(p->p,
                        p->port_in_id[i],
                        p->table_id[0]);

                if (status) {
                        rte_pipeline_free(p->p);
                        rte_free(p);
                        return NULL;
                }
        }

        /* Enable input ports */
        for (i = 0; i < p->n_ports_in; i++) {
                int status = rte_pipeline_port_in_enable(p->p,
                        p->port_in_id[i]);

                if (status) {
                        rte_pipeline_free(p->p);
                        rte_free(p);
                        return NULL;
                }
        }

        /* Initialize table entries */
        for (i = 0; i < p_fa->params.n_flows; i++) {
                struct rte_table_array_key key = {
                        .pos = i,
                };

                struct flow_table_entry entry;
                struct rte_pipeline_table_entry *entry_ptr;
                int key_found, status;

                flow_table_entry_set_default(p_fa, &entry);

                status = rte_pipeline_table_entry_add(p->p,
                        p->table_id[0],
                        &key,
                        (struct rte_pipeline_table_entry *) &entry,
                        &key_found,
                        &entry_ptr);

                if (status) {
                        rte_pipeline_free(p->p);
                        rte_free(p);
                        return NULL;
                }
        }

        /* Check pipeline consistency */
        if (rte_pipeline_check(p->p) < 0) {
                rte_pipeline_free(p->p);
                rte_free(p);
                return NULL;
        }

        /* Message queues */
        p->n_msgq = params->n_msgq;
        for (i = 0; i < p->n_msgq; i++)
                p->msgq_in[i] = params->msgq_in[i];
        for (i = 0; i < p->n_msgq; i++)
                p->msgq_out[i] = params->msgq_out[i];

        /* Message handlers */
        memcpy(p->handlers, handlers, sizeof(p->handlers));
        memcpy(p_fa->custom_handlers,
                custom_handlers,
                sizeof(p_fa->custom_handlers));

        return p;
}

static int
pipeline_fa_free(void *pipeline)
{
        struct pipeline *p = (struct pipeline *) pipeline;

        /* Check input arguments */
        if (p == NULL)
                return -1;

        /* Free resources */
        rte_pipeline_free(p->p);
        rte_free(p);
        return 0;
}

static int
pipeline_fa_track(void *pipeline,
        __rte_unused uint32_t port_in,
        uint32_t *port_out)
{
        struct pipeline *p = (struct pipeline *) pipeline;

        /* Check input arguments */
        if ((p == NULL) ||
                (port_in >= p->n_ports_in) ||
                (port_out == NULL))
                return -1;

        if (p->n_ports_in == 1) {
                *port_out = 0;
                return 0;
        }

        return -1;
}

static int
pipeline_fa_timer(void *pipeline)
{
        struct pipeline *p = (struct pipeline *) pipeline;

        pipeline_msg_req_handle(p);
        rte_pipeline_flush(p->p);

        return 0;
}

void *
pipeline_fa_msg_req_custom_handler(struct pipeline *p, void *msg)
{
        struct pipeline_flow_actions *p_fa =
                        (struct pipeline_flow_actions *) p;
        struct pipeline_custom_msg_req *req = msg;
        pipeline_msg_req_handler f_handle;

        f_handle = (req->subtype < PIPELINE_FA_MSG_REQS) ?
                p_fa->custom_handlers[req->subtype] :
                pipeline_msg_req_invalid_handler;

        if (f_handle == NULL)
                f_handle = pipeline_msg_req_invalid_handler;

        return f_handle(p, req);
}

void *
pipeline_fa_msg_req_flow_config_handler(struct pipeline *p, void *msg)
{
        struct pipeline_flow_actions *p_fa = (struct pipeline_flow_actions *) p;
        struct pipeline_fa_flow_config_msg_req *req = msg;
        struct pipeline_fa_flow_config_msg_rsp *rsp = msg;
        struct flow_table_entry *entry;
        uint32_t mask, i;

        /* Set flow table entry to default if not configured before */
        if (req->entry_ptr == NULL) {
                struct rte_table_array_key key = {
                        .pos = req->flow_id % p_fa->params.n_flows,
                };

                struct flow_table_entry default_entry;

                int key_found, status;

                flow_table_entry_set_default(p_fa, &default_entry);

                status = rte_pipeline_table_entry_add(p->p,
                        p->table_id[0],
                        &key,
                        (struct rte_pipeline_table_entry *) &default_entry,
                        &key_found,
                        (struct rte_pipeline_table_entry **) &entry);
                if (status) {
                        rsp->status = -1;
                        return rsp;
                }
        } else
                entry = (struct flow_table_entry *) req->entry_ptr;

        /* Meter */
        for (i = 0, mask = 1; i < PIPELINE_FA_N_TC_MAX; i++, mask <<= 1) {
                int status;

                if ((mask & req->meter_update_mask) == 0)
                        continue;

                status = flow_table_entry_set_meter(entry, i, &req->params);
                if (status) {
                        rsp->status = -1;
                        return rsp;
                }
        }

        /* Policer */
        for (i = 0, mask = 1; i < PIPELINE_FA_N_TC_MAX; i++, mask <<= 1) {
                if ((mask & req->policer_update_mask) == 0)
                        continue;

                flow_table_entry_set_policer(entry, i, &req->params);
        }

        /* Port */
        if (req->port_update)
                flow_table_entry_set_port_id(p_fa, entry, &req->params);

        /* Response */
        rsp->status = 0;
        rsp->entry_ptr = (void *) entry;
        return rsp;
}

void *
pipeline_fa_msg_req_flow_config_bulk_handler(struct pipeline *p, void *msg)
{
        struct pipeline_flow_actions *p_fa = (struct pipeline_flow_actions *) p;
        struct pipeline_fa_flow_config_bulk_msg_req *req = msg;
        struct pipeline_fa_flow_config_bulk_msg_rsp *rsp = msg;
        uint32_t i;

        for (i = 0; i < req->n_flows; i++) {
                struct flow_table_entry *entry;
                uint32_t j, mask;

                /* Set flow table entry to default if not configured before */
                if (req->entry_ptr[i] == NULL) {
                        struct rte_table_array_key key = {
                                .pos = req->flow_id[i] % p_fa->params.n_flows,
                        };

                        struct flow_table_entry entry_to_add;

                        int key_found, status;

                        flow_table_entry_set_default(p_fa, &entry_to_add);

                        status = rte_pipeline_table_entry_add(p->p,
                         p->table_id[0],
                         &key,
                         (struct rte_pipeline_table_entry *) &entry_to_add,
                         &key_found,
                         (struct rte_pipeline_table_entry **) &entry);
                        if (status) {
                                rsp->n_flows = i;
                                return rsp;
                        }

                        req->entry_ptr[i] = (void *) entry;
                } else
                        entry = (struct flow_table_entry *) req->entry_ptr[i];

                /* Meter */
                for (j = 0, mask = 1;
                        j < PIPELINE_FA_N_TC_MAX;
                        j++, mask <<= 1) {
                        int status;

                        if ((mask & req->meter_update_mask) == 0)
                                continue;

                        status = flow_table_entry_set_meter(entry,
                                j, &req->params[i]);
                        if (status) {
                                rsp->n_flows = i;
                                return rsp;
                        }
                }

                /* Policer */
                for (j = 0, mask = 1;
                        j < PIPELINE_FA_N_TC_MAX;
                        j++, mask <<= 1) {
                        if ((mask & req->policer_update_mask) == 0)
                                continue;

                        flow_table_entry_set_policer(entry,
                         j, &req->params[i]);
                }

                /* Port */
                if (req->port_update)
                        flow_table_entry_set_port_id(p_fa,
                         entry, &req->params[i]);
        }

        /* Response */
        rsp->n_flows = i;
        return rsp;
}

void *
pipeline_fa_msg_req_dscp_config_handler(struct pipeline *p, void *msg)
{
        struct pipeline_flow_actions *p_fa = (struct pipeline_flow_actions *) p;
        struct pipeline_fa_dscp_config_msg_req *req = msg;
        struct pipeline_fa_dscp_config_msg_rsp *rsp = msg;

        /* Check request */
        if ((req->dscp >= PIPELINE_FA_N_DSCP) ||
                (req->traffic_class >= PIPELINE_FA_N_TC_MAX) ||
                (req->color >= e_RTE_METER_COLORS)) {
                rsp->status = -1;
                return rsp;
        }

        p_fa->dscp[req->dscp].traffic_class = req->traffic_class;
        p_fa->dscp[req->dscp].color = req->color;
        rsp->status = 0;
        return rsp;
}

void *
pipeline_fa_msg_req_policer_stats_read_handler(__rte_unused struct pipeline *p,
        void *msg)
{
        struct pipeline_fa_policer_stats_msg_req *req = msg;
        struct pipeline_fa_policer_stats_msg_rsp *rsp = msg;

        struct flow_table_entry *entry = req->entry_ptr;
        uint32_t policer_id = req->policer_id;
        int clear = req->clear;

        /* Check request */
        if ((req->entry_ptr == NULL) ||
                (req->policer_id >= PIPELINE_FA_N_TC_MAX)) {
                rsp->status = -1;
                return rsp;
        }

        memcpy(&rsp->stats,
                &entry->mp[policer_id].stats,
                sizeof(rsp->stats));
        if (clear)
                memset(&entry->mp[policer_id].stats,
                        0, sizeof(entry->mp[policer_id].stats));
        rsp->status = 0;
        return rsp;
}

struct pipeline_be_ops pipeline_flow_actions_be_ops = {
        .f_init = pipeline_fa_init,
        .f_free = pipeline_fa_free,
        .f_run = NULL,
        .f_timer = pipeline_fa_timer,
        .f_track = pipeline_fa_track,
};