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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 | 20 | |
3ab1dfdd FK |
21 | #define TYPE_VIRTIO_SCSI "virtio-scsi" |
22 | #define VIRTIO_SCSI(obj) \ | |
23 | OBJECT_CHECK(VirtIOSCSI, (obj), TYPE_VIRTIO_SCSI) | |
24 | ||
25 | ||
973abc7f SH |
26 | /* The ID for virtio_scsi */ |
27 | #define VIRTIO_ID_SCSI 8 | |
28 | ||
07a5298c PB |
29 | /* Feature Bits */ |
30 | #define VIRTIO_SCSI_F_INOUT 0 | |
31 | #define VIRTIO_SCSI_F_HOTPLUG 1 | |
32 | #define VIRTIO_SCSI_F_CHANGE 2 | |
33 | ||
973abc7f SH |
34 | struct VirtIOSCSIConf { |
35 | uint32_t num_queues; | |
36 | uint32_t max_sectors; | |
37 | uint32_t cmd_per_lun; | |
38 | }; | |
39 | ||
f1b24e84 FK |
40 | typedef struct VirtIOSCSI { |
41 | VirtIODevice vdev; | |
42 | DeviceState *qdev; | |
394e2e4c | 43 | VirtIOSCSIConf conf; |
f1b24e84 FK |
44 | |
45 | SCSIBus bus; | |
46 | uint32_t sense_size; | |
47 | uint32_t cdb_size; | |
48 | int resetting; | |
49 | bool events_dropped; | |
50 | VirtQueue *ctrl_vq; | |
51 | VirtQueue *event_vq; | |
22219527 | 52 | VirtQueue **cmd_vqs; |
f1b24e84 FK |
53 | } VirtIOSCSI; |
54 | ||
4bfeb18a FK |
55 | #define DEFINE_VIRTIO_SCSI_PROPERTIES(_state, _conf_field) \ |
56 | DEFINE_PROP_UINT32("num_queues", _state, _conf_field.num_queues, 1), \ | |
57 | DEFINE_PROP_UINT32("max_sectors", _state, _conf_field.max_sectors, 0xFFFF),\ | |
58 | DEFINE_PROP_UINT32("cmd_per_lun", _state, _conf_field.cmd_per_lun, 128) | |
59 | ||
60 | #define DEFINE_VIRTIO_SCSI_FEATURES(_state, _feature_field) \ | |
61 | DEFINE_VIRTIO_COMMON_FEATURES(_state, _feature_field), \ | |
62 | DEFINE_PROP_BIT("hotplug", _state, _feature_field, VIRTIO_SCSI_F_HOTPLUG, \ | |
63 | true), \ | |
64 | DEFINE_PROP_BIT("param_change", _state, _feature_field, \ | |
65 | VIRTIO_SCSI_F_CHANGE, true) | |
973abc7f SH |
66 | |
67 | #endif /* _QEMU_VIRTIO_SCSI_H */ |