DPDK  20.05.0
rte_ethdev_vdev.h
1 /* SPDX-License-Identifier: BSD-3-Clause
2  * Copyright(c) 2017 Brocade Communications Systems, Inc.
3  * Author: Jan Blunck <jblunck@infradead.org>
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  *
9  * * Redistributions of source code must retain the above copyright
10  * notice, this list of conditions and the following disclaimer.
11  * * Redistributions in binary form must reproduce the above copyright
12  * notice, this list of conditions and the following disclaimer in
13  * the documentation and/or other materials provided with the
14  * distribution.
15  * * Neither the name of the copyright holder nor the names of its
16  * contributors may be used to endorse or promote products derived
17  * from this software without specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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25  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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29  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 #ifndef _RTE_ETHDEV_VDEV_H_
33 #define _RTE_ETHDEV_VDEV_H_
34 
35 #include <rte_config.h>
36 #include <rte_malloc.h>
37 #include <rte_bus_vdev.h>
38 #include <rte_ethdev_driver.h>
39 
54 static inline struct rte_eth_dev *
55 rte_eth_vdev_allocate(struct rte_vdev_device *dev, size_t private_data_size)
56 {
57  struct rte_eth_dev *eth_dev;
58  const char *name = rte_vdev_device_name(dev);
59 
60  eth_dev = rte_eth_dev_allocate(name);
61  if (!eth_dev)
62  return NULL;
63 
64  if (private_data_size) {
65  eth_dev->data->dev_private = rte_zmalloc_socket(name,
66  private_data_size, RTE_CACHE_LINE_SIZE,
67  dev->device.numa_node);
68  if (!eth_dev->data->dev_private) {
69  rte_eth_dev_release_port(eth_dev);
70  return NULL;
71  }
72  }
73 
74  eth_dev->device = &dev->device;
75  eth_dev->intr_handle = NULL;
76 
77  eth_dev->data->kdrv = RTE_KDRV_NONE;
78  eth_dev->data->numa_node = dev->device.numa_node;
79  return eth_dev;
80 }
81 
82 #endif /* _RTE_ETHDEV_VDEV_H_ */
void * rte_zmalloc_socket(const char *type, size_t size, unsigned align, int socket)