rte_eventdev_pmd_vdev.h

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/*
 *
 *   Copyright(c) 2016-2017 Cavium, Inc. 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 Cavium, Inc 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,
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 *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _RTE_EVENTDEV_PMD_VDEV_H_
#define _RTE_EVENTDEV_PMD_VDEV_H_

#ifdef __cplusplus
extern "C" {
#endif

#include <string.h>

#include <rte_config.h>
#include <rte_debug.h>
#include <rte_eal.h>
#include <rte_bus_vdev.h>

#include "rte_eventdev_pmd.h"

static inline struct rte_eventdev *
rte_event_pmd_vdev_init(const char *name, size_t dev_private_size,
        int socket_id)
{

    struct rte_eventdev *eventdev;

    /* Allocate device structure */
    eventdev = rte_event_pmd_allocate(name, socket_id);
    if (eventdev == NULL)
        return NULL;

    /* Allocate private device structure */
    if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
        eventdev->data->dev_private =
                rte_zmalloc_socket("eventdev device private",
                        dev_private_size,
                        RTE_CACHE_LINE_SIZE,
                        socket_id);

        if (eventdev->data->dev_private == NULL)
            rte_panic("Cannot allocate memzone for private device"
                    " data");
    }

    return eventdev;
}

static inline int
rte_event_pmd_vdev_uninit(const char *name)
{
    int ret;
    struct rte_eventdev *eventdev;

    if (name == NULL)
        return -EINVAL;

    eventdev = rte_event_pmd_get_named_dev(name);
    if (eventdev == NULL)
        return -ENODEV;

    ret = rte_event_dev_close(eventdev->data->dev_id);
    if (ret < 0)
        return ret;

    /* Free the event device */
    rte_event_pmd_release(eventdev);

    return 0;
}

#ifdef __cplusplus
}
#endif

#endif /* _RTE_EVENTDEV_PMD_VDEV_H_ */