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/block/block.h" 20 #include "chardev/char-fe.h" 21 #include "hw/virtio/vhost.h" 22 #include "hw/virtio/vhost-user.h" 23 #include "qom/object.h" 24 25 #define TYPE_VHOST_USER_BLK "vhost-user-blk" 26 typedef struct VHostUserBlk VHostUserBlk; 27 DECLARE_INSTANCE_CHECKER(VHostUserBlk, VHOST_USER_BLK, 28 TYPE_VHOST_USER_BLK) 29 30 #define VHOST_USER_BLK_AUTO_NUM_QUEUES UINT16_MAX 31 32 struct VHostUserBlk { 33 VirtIODevice parent_obj; 34 CharBackend chardev; 35 int32_t bootindex; 36 struct virtio_blk_config blkcfg; 37 uint16_t num_queues; 38 uint32_t queue_size; 39 uint32_t config_wce; 40 struct vhost_dev dev; 41 struct vhost_inflight *inflight; 42 VhostUserState vhost_user; 43 struct vhost_virtqueue *vhost_vqs; 44 VirtQueue **virtqs; 45 bool connected; 46 }; 47 48 #endif 49