ip_pipeline/pipeline/pipeline_common_be.c

/*-
 *   BSD LICENSE
 *
 *   Copyright(c) 2010-2015 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 <rte_common.h>
#include <rte_ring.h>
#include <rte_malloc.h>

#include "pipeline_common_be.h"

void *
pipeline_msg_req_ping_handler(__rte_unused struct pipeline *p,
        void *msg)
{
        struct pipeline_msg_rsp *rsp = msg;

        rsp->status = 0; /* OK */

        return rsp;
}

void *
pipeline_msg_req_stats_port_in_handler(struct pipeline *p,
        void *msg)
{
        struct pipeline_stats_msg_req *req = msg;
        struct pipeline_stats_port_in_msg_rsp *rsp = msg;
        uint32_t port_id;

        /* Check request */
        if (req->id >= p->n_ports_in) {
                rsp->status = -1;
                return rsp;
        }
        port_id = p->port_in_id[req->id];

        /* Process request */
        rsp->status = rte_pipeline_port_in_stats_read(p->p,
                port_id,
                &rsp->stats,
                1);

        return rsp;
}

void *
pipeline_msg_req_stats_port_out_handler(struct pipeline *p,
        void *msg)
{
        struct pipeline_stats_msg_req *req = msg;
        struct pipeline_stats_port_out_msg_rsp *rsp = msg;
        uint32_t port_id;

        /* Check request */
        if (req->id >= p->n_ports_out) {
                rsp->status = -1;
                return rsp;
        }
        port_id = p->port_out_id[req->id];

        /* Process request */
        rsp->status = rte_pipeline_port_out_stats_read(p->p,
                port_id,
                &rsp->stats,
                1);

        return rsp;
}

void *
pipeline_msg_req_stats_table_handler(struct pipeline *p,
        void *msg)
{
        struct pipeline_stats_msg_req *req = msg;
        struct pipeline_stats_table_msg_rsp *rsp = msg;
        uint32_t table_id;

        /* Check request */
        if (req->id >= p->n_tables) {
                rsp->status = -1;
                return rsp;
        }
        table_id = p->table_id[req->id];

        /* Process request */
        rsp->status = rte_pipeline_table_stats_read(p->p,
                table_id,
                &rsp->stats,
                1);

        return rsp;
}

void *
pipeline_msg_req_port_in_enable_handler(struct pipeline *p,
        void *msg)
{
        struct pipeline_port_in_msg_req *req = msg;
        struct pipeline_msg_rsp *rsp = msg;
        uint32_t port_id;

        /* Check request */
        if (req->port_id >= p->n_ports_in) {
                rsp->status = -1;
                return rsp;
        }
        port_id = p->port_in_id[req->port_id];

        /* Process request */
        rsp->status = rte_pipeline_port_in_enable(p->p,
                port_id);

        return rsp;
}

void *
pipeline_msg_req_port_in_disable_handler(struct pipeline *p,
        void *msg)
{
        struct pipeline_port_in_msg_req *req = msg;
        struct pipeline_msg_rsp *rsp = msg;
        uint32_t port_id;

        /* Check request */
        if (req->port_id >= p->n_ports_in) {
                rsp->status = -1;
                return rsp;
        }
        port_id = p->port_in_id[req->port_id];

        /* Process request */
        rsp->status = rte_pipeline_port_in_disable(p->p,
                port_id);

        return rsp;
}

void *
pipeline_msg_req_invalid_handler(__rte_unused struct pipeline *p,
        void *msg)
{
        struct pipeline_msg_rsp *rsp = msg;

        rsp->status = -1; /* Error */

        return rsp;
}

int
pipeline_msg_req_handle(struct pipeline *p)
{
        uint32_t msgq_id;

        for (msgq_id = 0; msgq_id < p->n_msgq; msgq_id++) {
                for ( ; ; ) {
                        struct pipeline_msg_req *req;
                        pipeline_msg_req_handler f_handle;

                        req = pipeline_msg_recv(p, msgq_id);
                        if (req == NULL)
                                break;

                        f_handle = (req->type < PIPELINE_MSG_REQS) ?
                                p->handlers[req->type] :
                                pipeline_msg_req_invalid_handler;

                        if (f_handle == NULL)
                                f_handle = pipeline_msg_req_invalid_handler;

                        pipeline_msg_send(p,
                                msgq_id,
                                f_handle(p, (void *) req));
                }
        }

        return 0;
}