4 * Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * * Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * * Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
17 * * Neither the name of Intel Corporation nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 #ifndef _VIRTIO_USER_DEV_H
35 #define _VIRTIO_USER_DEV_H
38 #include "../virtio_pci.h"
39 #include "../virtio_ring.h"
41 struct virtio_user_dev {
43 int callfds[VIRTIO_MAX_VIRTQUEUES * 2 + 1];
44 int kickfds[VIRTIO_MAX_VIRTQUEUES * 2 + 1];
46 uint32_t max_queue_pairs;
51 uint8_t mac_addr[ETHER_ADDR_LEN];
53 struct vring vrings[VIRTIO_MAX_VIRTQUEUES * 2 + 1];
56 int virtio_user_start_device(struct virtio_user_dev *dev);
57 int virtio_user_stop_device(struct virtio_user_dev *dev);
58 int virtio_user_dev_init(struct virtio_user_dev *dev, char *path, int queues,
59 int cq, int queue_size, const char *mac);
60 void virtio_user_dev_uninit(struct virtio_user_dev *dev);
61 void virtio_user_handle_cq(struct virtio_user_dev *dev, uint16_t queue_idx);