include/hw/virtio/vhost-user-blk.h

   1 /*
   2  * vhost-user-blk host device
   3  * Copyright(C) 2017 Intel Corporation.
   4  *
   5  * Authors:
   6  *  Changpeng Liu <changpeng.liu@intel.com>
   7  *
   8  * Based on vhost-scsi.h, Copyright IBM, Corp. 2011
   9  *
  10  * This work is licensed under the terms of the GNU LGPL, version 2 or later.
  11  * See the COPYING.LIB file in the top-level directory.
  12  *
  13  */
  14
  15 #ifndef VHOST_USER_BLK_H
  16 #define VHOST_USER_BLK_H
  17
  18 #include "standard-headers/linux/virtio_blk.h"
  19 #include "hw/qdev.h"
  20 #include "hw/block/block.h"
  21 #include "chardev/char-fe.h"
  22 #include "hw/virtio/vhost.h"
  23 #include "hw/virtio/vhost-user.h"
  24
  25 #define TYPE_VHOST_USER_BLK "vhost-user-blk"
  26 #define VHOST_USER_BLK(obj) \
  27         OBJECT_CHECK(VHostUserBlk, (obj), TYPE_VHOST_USER_BLK)
  28
  29 typedef struct VHostUserBlk {
  30     VirtIODevice parent_obj;
  31     CharBackend chardev;
  32     int32_t bootindex;
  33     struct virtio_blk_config blkcfg;
  34     uint16_t num_queues;
  35     uint32_t queue_size;
  36     uint32_t config_wce;
  37     struct vhost_dev dev;
  38     struct vhost_inflight *inflight;
  39     VhostUserState vhost_user;
  40     struct vhost_virtqueue *vqs;
  41     guint watch;
  42     bool connected;
  43 } VHostUserBlk;
  44
  45 #endif