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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,
* 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.
*/
#ifndef _RTE_EVENTDEV_PMD_VDEV_H_
#define _RTE_EVENTDEV_PMD_VDEV_H_
/** @file
* RTE Eventdev VDEV PMD APIs
*
* @note
* These API are from event VDEV PMD only and user applications should not call
* them directly.
*/
#ifdef __cplusplus
extern "C" {
#endif
#include <string.h>
#include <rte_debug.h>
#include <rte_eal.h>
#include <rte_bus_vdev.h>
#include "rte_eventdev_pmd.h"
/**
* @internal
* Creates a new virtual event device and returns the pointer to that device.
*
* @param name
* PMD type name
* @param dev_private_size
* Size of event PMDs private data
* @param socket_id
* Socket to allocate resources on.
*
* @return
* - Eventdev pointer if device is successfully created.
* - NULL if device cannot be created.
*/
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;
}
/**
* @internal
* Destroy the given virtual event device
*
* @param name
* PMD type name
* @return
* - 0 on success, negative on error
*/
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_ */
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