Imported Upstream version 16.04

[deb_dpdk.git] / lib / librte_vhost / vhost_user / vhost-net-user.h

diff --git a/lib/librte_vhost/vhost_user/vhost-net-user.h b/lib/librte_vhost/vhost_user/vhost-net-user.h
new file mode 100644 (file)
index 0000000..e3bb413
--- /dev/null
+++ b/lib/librte_vhost/vhost_user/vhost-net-user.h
@@ -0,0 +1,117 @@
+/*-
+ *   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.
+ */
+
+#ifndef _VHOST_NET_USER_H
+#define _VHOST_NET_USER_H
+
+#include <stdint.h>
+#include <linux/vhost.h>
+
+#include "rte_virtio_net.h"
+#include "fd_man.h"
+
+struct vhost_server {
+       char *path; /**< The path the uds is bind to. */
+       int listenfd;     /**< The listener sockfd. */
+};
+
+/* refer to hw/virtio/vhost-user.c */
+
+typedef enum VhostUserRequest {
+       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_SEND_RARP = 19,
+       VHOST_USER_MAX
+} VhostUserRequest;
+
+typedef struct VhostUserMemoryRegion {
+       uint64_t guest_phys_addr;
+       uint64_t memory_size;
+       uint64_t userspace_addr;
+       uint64_t mmap_offset;
+} VhostUserMemoryRegion;
+
+typedef struct VhostUserMemory {
+       uint32_t nregions;
+       uint32_t padding;
+       VhostUserMemoryRegion regions[VHOST_MEMORY_MAX_NREGIONS];
+} VhostUserMemory;
+
+typedef struct VhostUserLog {
+       uint64_t mmap_size;
+       uint64_t mmap_offset;
+} VhostUserLog;
+
+typedef struct VhostUserMsg {
+       VhostUserRequest 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;
+               VhostUserMemory memory;
+               VhostUserLog    log;
+       } payload;
+       int fds[VHOST_MEMORY_MAX_NREGIONS];
+} __attribute((packed)) VhostUserMsg;
+
+#define VHOST_USER_HDR_SIZE offsetof(VhostUserMsg, payload.u64)
+
+/* The version of the protocol we support */
+#define VHOST_USER_VERSION    0x1
+
+/*****************************************************************************/
+#endif