mirror of https://github.com/F-Stack/f-stack.git
99 lines
3.2 KiB
C
99 lines
3.2 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_VHOST_H
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#define _VIRTIO_USER_VHOST_H
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#include <stdint.h>
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#include <linux/types.h>
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#include <linux/ioctl.h>
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#include <rte_errno.h>
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#include "../virtio.h"
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#include "../virtio_logs.h"
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#include "../virtqueue.h"
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struct vhost_vring_state {
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unsigned int index;
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unsigned int num;
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};
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struct vhost_vring_file {
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unsigned int index;
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int fd;
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};
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struct vhost_vring_addr {
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unsigned int index;
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/* Option flags. */
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unsigned int flags;
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/* Flag values: */
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/* Whether log address is valid. If set enables logging. */
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#define VHOST_VRING_F_LOG 0
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/* Start of array of descriptors (virtually contiguous) */
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uint64_t desc_user_addr;
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/* Used structure address. Must be 32 bit aligned */
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uint64_t used_user_addr;
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/* Available structure address. Must be 16 bit aligned */
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uint64_t avail_user_addr;
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/* Logging support. */
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/* Log writes to used structure, at offset calculated from specified
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* address. Address must be 32 bit aligned.
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*/
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uint64_t log_guest_addr;
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};
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#ifndef VHOST_BACKEND_F_IOTLB_MSG_V2
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#define VHOST_BACKEND_F_IOTLB_MSG_V2 1
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#endif
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#ifndef VHOST_BACKEND_F_IOTLB_BATCH
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#define VHOST_BACKEND_F_IOTLB_BATCH 2
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#endif
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struct vhost_memory_region {
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uint64_t guest_phys_addr;
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uint64_t memory_size; /* bytes */
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uint64_t userspace_addr;
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uint64_t mmap_offset;
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};
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struct virtio_user_dev;
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struct virtio_user_backend_ops {
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int (*setup)(struct virtio_user_dev *dev);
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int (*destroy)(struct virtio_user_dev *dev);
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int (*get_backend_features)(uint64_t *features);
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int (*set_owner)(struct virtio_user_dev *dev);
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int (*get_features)(struct virtio_user_dev *dev, uint64_t *features);
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int (*set_features)(struct virtio_user_dev *dev, uint64_t features);
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int (*set_memory_table)(struct virtio_user_dev *dev);
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int (*set_vring_num)(struct virtio_user_dev *dev, struct vhost_vring_state *state);
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int (*set_vring_base)(struct virtio_user_dev *dev, struct vhost_vring_state *state);
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int (*get_vring_base)(struct virtio_user_dev *dev, struct vhost_vring_state *state);
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int (*set_vring_call)(struct virtio_user_dev *dev, struct vhost_vring_file *file);
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int (*set_vring_kick)(struct virtio_user_dev *dev, struct vhost_vring_file *file);
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int (*set_vring_addr)(struct virtio_user_dev *dev, struct vhost_vring_addr *addr);
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int (*get_status)(struct virtio_user_dev *dev, uint8_t *status);
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int (*set_status)(struct virtio_user_dev *dev, uint8_t status);
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int (*get_config)(struct virtio_user_dev *dev, uint8_t *data, uint32_t off, uint32_t len);
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int (*set_config)(struct virtio_user_dev *dev, const uint8_t *data, uint32_t off,
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uint32_t len);
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int (*enable_qp)(struct virtio_user_dev *dev, uint16_t pair_idx, int enable);
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int (*dma_map)(struct virtio_user_dev *dev, void *addr, uint64_t iova, size_t len);
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int (*dma_unmap)(struct virtio_user_dev *dev, void *addr, uint64_t iova, size_t len);
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int (*update_link_state)(struct virtio_user_dev *dev);
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int (*server_disconnect)(struct virtio_user_dev *dev);
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int (*server_reconnect)(struct virtio_user_dev *dev);
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int (*get_intr_fd)(struct virtio_user_dev *dev);
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};
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extern struct virtio_user_backend_ops virtio_ops_user;
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extern struct virtio_user_backend_ops virtio_ops_kernel;
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extern struct virtio_user_backend_ops virtio_ops_vdpa;
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#endif
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