-/*-
- * BSD LICENSE
- *
- * Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2016 Intel Corporation
*/
-#ifndef _VHOST_NET_USER_H
-#define _VHOST_NET_USER_H
+#ifndef _VIRTIO_USER_VHOST_H
+#define _VIRTIO_USER_VHOST_H
#include <stdint.h>
#include <linux/types.h>
#include <linux/ioctl.h>
-#include "../virtio_pci.h"
+#include <rte_errno.h>
+
+#include "../virtio.h"
#include "../virtio_logs.h"
#include "../virtqueue.h"
-#define VHOST_MEMORY_MAX_NREGIONS 8
-
struct vhost_vring_state {
unsigned int index;
unsigned int num;
uint64_t log_guest_addr;
};
-enum vhost_user_request {
- VHOST_USER_NONE = 0,
- VHOST_USER_GET_FEATURES = 1,
- VHOST_USER_SET_FEATURES = 2,
- VHOST_USER_SET_OWNER = 3,
- VHOST_USER_RESET_OWNER = 4,
- VHOST_USER_SET_MEM_TABLE = 5,
- VHOST_USER_SET_LOG_BASE = 6,
- VHOST_USER_SET_LOG_FD = 7,
- VHOST_USER_SET_VRING_NUM = 8,
- VHOST_USER_SET_VRING_ADDR = 9,
- VHOST_USER_SET_VRING_BASE = 10,
- VHOST_USER_GET_VRING_BASE = 11,
- VHOST_USER_SET_VRING_KICK = 12,
- VHOST_USER_SET_VRING_CALL = 13,
- VHOST_USER_SET_VRING_ERR = 14,
- VHOST_USER_GET_PROTOCOL_FEATURES = 15,
- VHOST_USER_SET_PROTOCOL_FEATURES = 16,
- VHOST_USER_GET_QUEUE_NUM = 17,
- VHOST_USER_SET_VRING_ENABLE = 18,
- VHOST_USER_MAX
-};
+#ifndef VHOST_BACKEND_F_IOTLB_MSG_V2
+#define VHOST_BACKEND_F_IOTLB_MSG_V2 1
+#endif
+
+#ifndef VHOST_BACKEND_F_IOTLB_BATCH
+#define VHOST_BACKEND_F_IOTLB_BATCH 2
+#endif
struct vhost_memory_region {
uint64_t guest_phys_addr;
uint64_t mmap_offset;
};
-struct vhost_memory {
- uint32_t nregions;
- uint32_t padding;
- struct vhost_memory_region regions[VHOST_MEMORY_MAX_NREGIONS];
+struct virtio_user_dev;
+
+struct virtio_user_backend_ops {
+ int (*setup)(struct virtio_user_dev *dev);
+ int (*destroy)(struct virtio_user_dev *dev);
+ int (*get_backend_features)(uint64_t *features);
+ int (*set_owner)(struct virtio_user_dev *dev);
+ int (*get_features)(struct virtio_user_dev *dev, uint64_t *features);
+ int (*set_features)(struct virtio_user_dev *dev, uint64_t features);
+ int (*set_memory_table)(struct virtio_user_dev *dev);
+ int (*set_vring_num)(struct virtio_user_dev *dev, struct vhost_vring_state *state);
+ int (*set_vring_base)(struct virtio_user_dev *dev, struct vhost_vring_state *state);
+ int (*get_vring_base)(struct virtio_user_dev *dev, struct vhost_vring_state *state);
+ int (*set_vring_call)(struct virtio_user_dev *dev, struct vhost_vring_file *file);
+ int (*set_vring_kick)(struct virtio_user_dev *dev, struct vhost_vring_file *file);
+ int (*set_vring_addr)(struct virtio_user_dev *dev, struct vhost_vring_addr *addr);
+ int (*get_status)(struct virtio_user_dev *dev, uint8_t *status);
+ int (*set_status)(struct virtio_user_dev *dev, uint8_t status);
+ int (*enable_qp)(struct virtio_user_dev *dev, uint16_t pair_idx, int enable);
+ int (*dma_map)(struct virtio_user_dev *dev, void *addr, uint64_t iova, size_t len);
+ int (*dma_unmap)(struct virtio_user_dev *dev, void *addr, uint64_t iova, size_t len);
+ int (*update_link_state)(struct virtio_user_dev *dev);
+ int (*server_disconnect)(struct virtio_user_dev *dev);
+ int (*server_reconnect)(struct virtio_user_dev *dev);
+ int (*get_intr_fd)(struct virtio_user_dev *dev);
};
-struct vhost_user_msg {
- enum vhost_user_request request;
-
-#define VHOST_USER_VERSION_MASK 0x3
-#define VHOST_USER_REPLY_MASK (0x1 << 2)
- uint32_t flags;
- uint32_t size; /* the following payload size */
- union {
-#define VHOST_USER_VRING_IDX_MASK 0xff
-#define VHOST_USER_VRING_NOFD_MASK (0x1 << 8)
- uint64_t u64;
- struct vhost_vring_state state;
- struct vhost_vring_addr addr;
- struct vhost_memory memory;
- } payload;
- int fds[VHOST_MEMORY_MAX_NREGIONS];
-} __attribute((packed));
-
-#define VHOST_USER_HDR_SIZE offsetof(struct vhost_user_msg, payload.u64)
-#define VHOST_USER_PAYLOAD_SIZE \
- (sizeof(struct vhost_user_msg) - VHOST_USER_HDR_SIZE)
-
-/* The version of the protocol we support */
-#define VHOST_USER_VERSION 0x1
-
-#define VHOST_USER_F_PROTOCOL_FEATURES 30
-#define VHOST_USER_MQ (1ULL << VHOST_USER_F_PROTOCOL_FEATURES)
-
-int vhost_user_sock(int vhostfd, uint64_t req, void *arg);
-int vhost_user_setup(const char *path);
-int vhost_user_enable_queue_pair(int vhostfd, uint16_t pair_idx, int enable);
+extern struct virtio_user_backend_ops virtio_ops_user;
+extern struct virtio_user_backend_ops virtio_ops_kernel;
+extern struct virtio_user_backend_ops virtio_ops_vdpa;
#endif