ceph/src/spdk/lib/vhost/linux/virtio_types.h

   1 #ifndef _LINUX_VIRTIO_TYPES_H
   2 #define _LINUX_VIRTIO_TYPES_H
   3 /* Type definitions for virtio implementations.
   4  *
   5  * This header is BSD licensed so anyone can use the definitions to implement
   6  * compatible drivers/servers.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. Neither the name of IBM nor the names of its contributors
  17  *    may be used to endorse or promote products derived from this software
  18  *    without specific prior written permission.
  19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL IBM OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  *
  31  * Copyright (C) 2014 Red Hat, Inc.
  32  * Author: Michael S. Tsirkin <mst@redhat.com>
  33  */
  34 #include <linux/types.h>
  35
  36 /*
  37  * __virtio{16,32,64} have the following meaning:
  38  * - __u{16,32,64} for virtio devices in legacy mode, accessed in native endian
  39  * - __le{16,32,64} for standard-compliant virtio devices
  40  */
  41
  42 typedef __u16 __bitwise__ __virtio16;
  43 typedef __u32 __bitwise__ __virtio32;
  44 typedef __u64 __bitwise__ __virtio64;
  45
  46 #endif /* _LINUX_VIRTIO_TYPES_H */