vhost: introduce vring call API

[dpdk.git] / lib / librte_vhost / vhost_user.h

diff --git a/lib/librte_vhost/vhost_user.h b/lib/librte_vhost/vhost_user.h
index ba78d32..d4bd604 100644 (file)
--- a/lib/librte_vhost/vhost_user.h
+++ b/lib/librte_vhost/vhost_user.h
@@ -1,34 +1,5 @@
-/*-
- *   BSD LICENSE
- *
- *   Copyright(c) 2010-2014 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) 2010-2014 Intel Corporation
  */
 
 #ifndef _VHOST_NET_USER_H
@@ -37,7 +8,7 @@
 #include <stdint.h>
 #include <linux/vhost.h>
 
-#include "rte_virtio_net.h"
+#include "rte_vhost.h"
 
 /* refer to hw/virtio/vhost-user.c */
 
@@ -46,10 +17,16 @@
 #define VHOST_USER_PROTOCOL_F_MQ       0
 #define VHOST_USER_PROTOCOL_F_LOG_SHMFD        1
 #define VHOST_USER_PROTOCOL_F_RARP     2
+#define VHOST_USER_PROTOCOL_F_REPLY_ACK        3
+#define VHOST_USER_PROTOCOL_F_NET_MTU 4
+#define VHOST_USER_PROTOCOL_F_SLAVE_REQ 5
 
 #define VHOST_USER_PROTOCOL_FEATURES   ((1ULL << VHOST_USER_PROTOCOL_F_MQ) | \
                                         (1ULL << VHOST_USER_PROTOCOL_F_LOG_SHMFD) |\
-                                        (1ULL << VHOST_USER_PROTOCOL_F_RARP))
+                                        (1ULL << VHOST_USER_PROTOCOL_F_RARP) | \
+                                        (1ULL << VHOST_USER_PROTOCOL_F_REPLY_ACK) | \
+                                        (1ULL << VHOST_USER_PROTOCOL_F_NET_MTU) | \
+                                        (1ULL << VHOST_USER_PROTOCOL_F_SLAVE_REQ))
 
 typedef enum VhostUserRequest {
        VHOST_USER_NONE = 0,
@@ -72,9 +49,18 @@ typedef enum VhostUserRequest {
        VHOST_USER_GET_QUEUE_NUM = 17,
        VHOST_USER_SET_VRING_ENABLE = 18,
        VHOST_USER_SEND_RARP = 19,
+       VHOST_USER_NET_SET_MTU = 20,
+       VHOST_USER_SET_SLAVE_REQ_FD = 21,
+       VHOST_USER_IOTLB_MSG = 22,
        VHOST_USER_MAX
 } VhostUserRequest;
 
+typedef enum VhostUserSlaveRequest {
+       VHOST_USER_SLAVE_NONE = 0,
+       VHOST_USER_SLAVE_IOTLB_MSG = 1,
+       VHOST_USER_SLAVE_MAX
+} VhostUserSlaveRequest;
+
 typedef struct VhostUserMemoryRegion {
        uint64_t guest_phys_addr;
        uint64_t memory_size;
@@ -94,10 +80,14 @@ typedef struct VhostUserLog {
 } VhostUserLog;
 
 typedef struct VhostUserMsg {
-       VhostUserRequest request;
+       union {
+               VhostUserRequest master;
+               VhostUserSlaveRequest slave;
+       } request;
 
 #define VHOST_USER_VERSION_MASK     0x3
 #define VHOST_USER_REPLY_MASK       (0x1 << 2)
+#define VHOST_USER_NEED_REPLY          (0x1 << 3)
        uint32_t flags;
        uint32_t size; /* the following payload size */
        union {
@@ -108,6 +98,7 @@ typedef struct VhostUserMsg {
                struct vhost_vring_addr addr;
                VhostUserMemory memory;
                VhostUserLog    log;
+               struct vhost_iotlb_msg iotlb;
        } payload;
        int fds[VHOST_MEMORY_MAX_NREGIONS];
 } __attribute((packed)) VhostUserMsg;
@@ -120,6 +111,7 @@ typedef struct VhostUserMsg {
 
 /* vhost_user.c */
 int vhost_user_msg_handler(int vid, int fd);
+int vhost_user_iotlb_miss(struct virtio_net *dev, uint64_t iova, uint8_t perm);
 
 /* socket.c */
 int read_fd_message(int sockfd, char *buf, int buflen, int *fds, int fd_num);