5566a3e358
Replace the BSD license header with the SPDX tag for files with only an Intel copyright on them. Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
95 lines
2.2 KiB
C
95 lines
2.2 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 _VHOST_NET_USER_H
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#define _VHOST_NET_USER_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 "../virtio_pci.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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enum vhost_user_request {
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VHOST_USER_NONE = 0,
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VHOST_USER_GET_FEATURES = 1,
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VHOST_USER_SET_FEATURES = 2,
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VHOST_USER_SET_OWNER = 3,
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VHOST_USER_RESET_OWNER = 4,
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VHOST_USER_SET_MEM_TABLE = 5,
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VHOST_USER_SET_LOG_BASE = 6,
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VHOST_USER_SET_LOG_FD = 7,
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VHOST_USER_SET_VRING_NUM = 8,
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VHOST_USER_SET_VRING_ADDR = 9,
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VHOST_USER_SET_VRING_BASE = 10,
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VHOST_USER_GET_VRING_BASE = 11,
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VHOST_USER_SET_VRING_KICK = 12,
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VHOST_USER_SET_VRING_CALL = 13,
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VHOST_USER_SET_VRING_ERR = 14,
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VHOST_USER_GET_PROTOCOL_FEATURES = 15,
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VHOST_USER_SET_PROTOCOL_FEATURES = 16,
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VHOST_USER_GET_QUEUE_NUM = 17,
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VHOST_USER_SET_VRING_ENABLE = 18,
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VHOST_USER_MAX
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};
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const char * const vhost_msg_strings[VHOST_USER_MAX];
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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 (*send_request)(struct virtio_user_dev *dev,
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enum vhost_user_request req,
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void *arg);
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int (*enable_qp)(struct virtio_user_dev *dev,
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uint16_t pair_idx,
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int enable);
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};
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struct virtio_user_backend_ops ops_user;
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struct virtio_user_backend_ops ops_kernel;
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#endif
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