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