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973abc7f SH |
1 | /* |
2 | * Virtio SCSI HBA | |
3 | * | |
4 | * Copyright IBM, Corp. 2010 | |
5 | * | |
6 | * Authors: | |
7 | * Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> | |
8 | * | |
9 | * This work is licensed under the terms of the GNU GPL, version 2. See | |
10 | * the COPYING file in the top-level directory. | |
11 | * | |
12 | */ | |
13 | ||
14 | #ifndef _QEMU_VIRTIO_SCSI_H | |
15 | #define _QEMU_VIRTIO_SCSI_H | |
16 | ||
83c9f4ca PB |
17 | #include "hw/virtio.h" |
18 | #include "hw/pci/pci.h" | |
f1b24e84 | 19 | #include "hw/scsi.h" |
973abc7f SH |
20 | |
21 | /* The ID for virtio_scsi */ | |
22 | #define VIRTIO_ID_SCSI 8 | |
23 | ||
07a5298c PB |
24 | /* Feature Bits */ |
25 | #define VIRTIO_SCSI_F_INOUT 0 | |
26 | #define VIRTIO_SCSI_F_HOTPLUG 1 | |
27 | #define VIRTIO_SCSI_F_CHANGE 2 | |
28 | ||
973abc7f SH |
29 | struct VirtIOSCSIConf { |
30 | uint32_t num_queues; | |
31 | uint32_t max_sectors; | |
32 | uint32_t cmd_per_lun; | |
33 | }; | |
34 | ||
f1b24e84 FK |
35 | typedef struct VirtIOSCSI { |
36 | VirtIODevice vdev; | |
37 | DeviceState *qdev; | |
394e2e4c | 38 | VirtIOSCSIConf conf; |
f1b24e84 FK |
39 | |
40 | SCSIBus bus; | |
41 | uint32_t sense_size; | |
42 | uint32_t cdb_size; | |
43 | int resetting; | |
44 | bool events_dropped; | |
45 | VirtQueue *ctrl_vq; | |
46 | VirtQueue *event_vq; | |
47 | VirtQueue *cmd_vqs[0]; | |
48 | } VirtIOSCSI; | |
49 | ||
973abc7f SH |
50 | #define DEFINE_VIRTIO_SCSI_PROPERTIES(_state, _features_field, _conf_field) \ |
51 | DEFINE_VIRTIO_COMMON_FEATURES(_state, _features_field), \ | |
52 | DEFINE_PROP_UINT32("num_queues", _state, _conf_field.num_queues, 1), \ | |
53 | DEFINE_PROP_UINT32("max_sectors", _state, _conf_field.max_sectors, 0xFFFF), \ | |
07a5298c PB |
54 | DEFINE_PROP_UINT32("cmd_per_lun", _state, _conf_field.cmd_per_lun, 128), \ |
55 | DEFINE_PROP_BIT("hotplug", _state, _features_field, VIRTIO_SCSI_F_HOTPLUG, true), \ | |
56 | DEFINE_PROP_BIT("param_change", _state, _features_field, VIRTIO_SCSI_F_CHANGE, true) | |
973abc7f SH |
57 | |
58 | #endif /* _QEMU_VIRTIO_SCSI_H */ |