projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 9f95a23c TL |
1 | /* SPDX-License-Identifier: BSD-3-Clause |
| 2 | * Copyright(c) 2010-2016 Intel Corporation | |
| 7c673cae FG |
3 | */ |
| 4 | ||
| 5 | #ifndef _VIRTIO_USER_DEV_H | |
| 6 | #define _VIRTIO_USER_DEV_H | |
| 7 | ||
| 8 | #include <limits.h> | |
| 9f95a23c | 9 | #include <stdbool.h> |
| 7c673cae FG |
10 | #include "../virtio_pci.h" |
| 11 | #include "../virtio_ring.h" | |
| 11fdf7f2 | 12 | #include "vhost.h" |
| 7c673cae | 13 | |
| 9f95a23c TL |
14 | struct virtio_user_queue { |
| 15 | uint16_t used_idx; | |
| 16 | bool avail_wrap_counter; | |
| 17 | bool used_wrap_counter; | |
| 18 | }; | |
| 19 | ||
| 7c673cae | 20 | struct virtio_user_dev { |
| 11fdf7f2 | 21 | /* for vhost_user backend */ |
| 7c673cae | 22 | int vhostfd; |
| 9f95a23c TL |
23 | int listenfd; /* listening fd */ |
| 24 | bool is_server; /* server or client mode */ | |
| 11fdf7f2 TL |
25 | |
| 26 | /* for vhost_kernel backend */ | |
| 27 | char *ifname; | |
| 28 | int *vhostfds; | |
| 29 | int *tapfds; | |
| 30 | ||
| 31 | /* for both vhost_user and vhost_kernel */ | |
| 32 | int callfds[VIRTIO_MAX_VIRTQUEUES]; | |
| 33 | int kickfds[VIRTIO_MAX_VIRTQUEUES]; | |
| 7c673cae FG |
34 | int mac_specified; |
| 35 | uint32_t max_queue_pairs; | |
| 36 | uint32_t queue_pairs; | |
| 37 | uint32_t queue_size; | |
| 11fdf7f2 TL |
38 | uint64_t features; /* the negotiated features with driver, |
| 39 | * and will be sync with device | |
| 40 | */ | |
| 41 | uint64_t device_features; /* supported features by device */ | |
| 9f95a23c TL |
42 | uint64_t frontend_features; /* enabled frontend features */ |
| 43 | uint64_t unsupported_features; /* unsupported features mask */ | |
| 7c673cae | 44 | uint8_t status; |
| 9f95a23c | 45 | uint16_t port_id; |
| 7c673cae FG |
46 | uint8_t mac_addr[ETHER_ADDR_LEN]; |
| 47 | char path[PATH_MAX]; | |
| 9f95a23c TL |
48 | union { |
| 49 | struct vring vrings[VIRTIO_MAX_VIRTQUEUES]; | |
| 50 | struct vring_packed packed_vrings[VIRTIO_MAX_VIRTQUEUES]; | |
| 51 | }; | |
| 52 | struct virtio_user_queue packed_queues[VIRTIO_MAX_VIRTQUEUES]; | |
| 53 | ||
| 11fdf7f2 | 54 | struct virtio_user_backend_ops *ops; |
| 9f95a23c TL |
55 | pthread_mutex_t mutex; |
| 56 | bool started; | |
| 7c673cae FG |
57 | }; |
| 58 | ||
| 11fdf7f2 | 59 | int is_vhost_user_by_type(const char *path); |
| 7c673cae FG |
60 | int virtio_user_start_device(struct virtio_user_dev *dev); |
| 61 | int virtio_user_stop_device(struct virtio_user_dev *dev); | |
| 62 | int virtio_user_dev_init(struct virtio_user_dev *dev, char *path, int queues, | |
| 9f95a23c TL |
63 | int cq, int queue_size, const char *mac, char **ifname, |
| 64 | int server, int mrg_rxbuf, int in_order, | |
| 65 | int packed_vq); | |
| 7c673cae FG |
66 | void virtio_user_dev_uninit(struct virtio_user_dev *dev); |
| 67 | void virtio_user_handle_cq(struct virtio_user_dev *dev, uint16_t queue_idx); | |
| 9f95a23c TL |
68 | void virtio_user_handle_cq_packed(struct virtio_user_dev *dev, |
| 69 | uint16_t queue_idx); | |
| 70 | uint8_t virtio_user_handle_mq(struct virtio_user_dev *dev, uint16_t q_pairs); | |
| 7c673cae | 71 | #endif |