f-stack/dpdk/drivers/net/virtio/virtio_user/virtio_user_dev.h

90 lines
2.7 KiB
C

/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2010-2016 Intel Corporation
*/
#ifndef _VIRTIO_USER_DEV_H
#define _VIRTIO_USER_DEV_H
#include <limits.h>
#include <stdbool.h>
#include "../virtio.h"
#include "../virtio_ring.h"
enum virtio_user_backend_type {
VIRTIO_USER_BACKEND_UNKNOWN,
VIRTIO_USER_BACKEND_VHOST_USER,
VIRTIO_USER_BACKEND_VHOST_KERNEL,
VIRTIO_USER_BACKEND_VHOST_VDPA,
};
struct virtio_user_queue {
uint16_t used_idx;
bool avail_wrap_counter;
bool used_wrap_counter;
};
struct virtio_user_dev {
struct virtio_hw hw;
enum virtio_user_backend_type backend_type;
bool is_server; /* server or client mode */
int *callfds;
int *kickfds;
int mac_specified;
uint16_t max_queue_pairs;
uint16_t queue_pairs;
uint32_t queue_size;
uint64_t features; /* the negotiated features with driver,
* and will be sync with device
*/
uint64_t device_features; /* supported features by device */
uint64_t frontend_features; /* enabled frontend features */
uint64_t unsupported_features; /* unsupported features mask */
uint8_t status;
uint16_t net_status;
uint8_t mac_addr[RTE_ETHER_ADDR_LEN];
char path[PATH_MAX];
char *ifname;
union {
void *ptr;
struct vring *split;
struct vring_packed *packed;
} vrings;
struct virtio_user_queue *packed_queues;
bool *qp_enabled;
struct virtio_user_backend_ops *ops;
pthread_mutex_t mutex;
bool started;
bool hw_cvq;
struct virtqueue *scvq;
void *backend_data;
};
int virtio_user_dev_set_features(struct virtio_user_dev *dev);
int virtio_user_start_device(struct virtio_user_dev *dev);
int virtio_user_stop_device(struct virtio_user_dev *dev);
int virtio_user_dev_init(struct virtio_user_dev *dev, char *path, uint16_t queues,
int cq, int queue_size, const char *mac, char **ifname,
int server, int mrg_rxbuf, int in_order,
int packed_vq,
enum virtio_user_backend_type backend_type);
void virtio_user_dev_uninit(struct virtio_user_dev *dev);
void virtio_user_handle_cq(struct virtio_user_dev *dev, uint16_t queue_idx);
int virtio_user_dev_create_shadow_cvq(struct virtio_user_dev *dev, struct virtqueue *vq);
void virtio_user_dev_destroy_shadow_cvq(struct virtio_user_dev *dev);
int virtio_user_dev_set_status(struct virtio_user_dev *dev, uint8_t status);
int virtio_user_dev_update_status(struct virtio_user_dev *dev);
int virtio_user_dev_update_link_state(struct virtio_user_dev *dev);
int virtio_user_dev_set_mac(struct virtio_user_dev *dev);
int virtio_user_dev_get_mac(struct virtio_user_dev *dev);
void virtio_user_dev_delayed_disconnect_handler(void *param);
int virtio_user_dev_server_reconnect(struct virtio_user_dev *dev);
extern const char * const virtio_user_backend_strings[];
#endif