a798beb47c
Rename "rte_virtio_net.h" to "rte_vhost.h", to not let it be virtio net specific. Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com> Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
135 lines
4.4 KiB
C
135 lines
4.4 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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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/vhost.h>
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#include "rte_vhost.h"
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/* refer to hw/virtio/vhost-user.c */
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#define VHOST_MEMORY_MAX_NREGIONS 8
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#define VHOST_USER_PROTOCOL_F_MQ 0
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#define VHOST_USER_PROTOCOL_F_LOG_SHMFD 1
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#define VHOST_USER_PROTOCOL_F_RARP 2
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#define VHOST_USER_PROTOCOL_F_REPLY_ACK 3
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#define VHOST_USER_PROTOCOL_F_NET_MTU 4
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#define VHOST_USER_PROTOCOL_FEATURES ((1ULL << VHOST_USER_PROTOCOL_F_MQ) | \
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(1ULL << VHOST_USER_PROTOCOL_F_LOG_SHMFD) |\
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(1ULL << VHOST_USER_PROTOCOL_F_RARP) | \
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(1ULL << VHOST_USER_PROTOCOL_F_REPLY_ACK) | \
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(1ULL << VHOST_USER_PROTOCOL_F_NET_MTU))
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typedef enum VhostUserRequest {
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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_SEND_RARP = 19,
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VHOST_USER_NET_SET_MTU = 20,
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VHOST_USER_MAX
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} VhostUserRequest;
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typedef struct VhostUserMemoryRegion {
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uint64_t guest_phys_addr;
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uint64_t memory_size;
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uint64_t userspace_addr;
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uint64_t mmap_offset;
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} VhostUserMemoryRegion;
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typedef struct VhostUserMemory {
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uint32_t nregions;
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uint32_t padding;
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VhostUserMemoryRegion regions[VHOST_MEMORY_MAX_NREGIONS];
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} VhostUserMemory;
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typedef struct VhostUserLog {
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uint64_t mmap_size;
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uint64_t mmap_offset;
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} VhostUserLog;
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typedef struct VhostUserMsg {
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VhostUserRequest request;
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#define VHOST_USER_VERSION_MASK 0x3
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#define VHOST_USER_REPLY_MASK (0x1 << 2)
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#define VHOST_USER_NEED_REPLY (0x1 << 3)
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uint32_t flags;
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uint32_t size; /* the following payload size */
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union {
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#define VHOST_USER_VRING_IDX_MASK 0xff
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#define VHOST_USER_VRING_NOFD_MASK (0x1<<8)
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uint64_t u64;
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struct vhost_vring_state state;
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struct vhost_vring_addr addr;
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VhostUserMemory memory;
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VhostUserLog log;
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} payload;
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int fds[VHOST_MEMORY_MAX_NREGIONS];
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} __attribute((packed)) VhostUserMsg;
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#define VHOST_USER_HDR_SIZE offsetof(VhostUserMsg, payload.u64)
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/* The version of the protocol we support */
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#define VHOST_USER_VERSION 0x1
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/* vhost_user.c */
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int vhost_user_msg_handler(int vid, int fd);
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/* socket.c */
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int read_fd_message(int sockfd, char *buf, int buflen, int *fds, int fd_num);
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int send_fd_message(int sockfd, char *buf, int buflen, int *fds, int fd_num);
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#endif
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