mirror of https://github.com/F-Stack/f-stack.git
58 lines
1.7 KiB
C
58 lines
1.7 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_pci.h"
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#include "../virtio_ring.h"
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#include "vhost.h"
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struct virtio_user_dev {
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/* for vhost_user backend */
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int vhostfd;
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int listenfd; /* listening fd */
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bool is_server; /* server or client mode */
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/* for vhost_kernel backend */
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char *ifname;
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int *vhostfds;
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int *tapfds;
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/* for both vhost_user and vhost_kernel */
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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 port_id;
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uint8_t mac_addr[ETHER_ADDR_LEN];
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char path[PATH_MAX];
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struct vring vrings[VIRTIO_MAX_VIRTQUEUES];
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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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};
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int is_vhost_user_by_type(const char *path);
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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 mrg_rxbuf, int in_order);
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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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uint8_t virtio_user_handle_mq(struct virtio_user_dev *dev, uint16_t q_pairs);
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#endif
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