projects / qemu.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 KF |
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 | 40 | typedef struct VirtIOSCSI { |
| 0ac8e139 | 41 | VirtIODevice parent_obj; |
| 394e2e4c | 42 | VirtIOSCSIConf conf; |
| f1b24e84 KF |
43 | |
| 44 | SCSIBus bus; | |
| 45 | uint32_t sense_size; | |
| 46 | uint32_t cdb_size; | |
| 47 | int resetting; | |
| 48 | bool events_dropped; | |
| 49 | VirtQueue *ctrl_vq; | |
| 50 | VirtQueue *event_vq; | |
| 22219527 | 51 | VirtQueue **cmd_vqs; |
| f1b24e84 KF |
52 | } VirtIOSCSI; |
| 53 | ||
| 4bfeb18a KF |
54 | #define DEFINE_VIRTIO_SCSI_PROPERTIES(_state, _conf_field) \ |
| 55 | DEFINE_PROP_UINT32("num_queues", _state, _conf_field.num_queues, 1), \ | |
| 56 | DEFINE_PROP_UINT32("max_sectors", _state, _conf_field.max_sectors, 0xFFFF),\ | |
| 57 | DEFINE_PROP_UINT32("cmd_per_lun", _state, _conf_field.cmd_per_lun, 128) | |
| 58 | ||
| 59 | #define DEFINE_VIRTIO_SCSI_FEATURES(_state, _feature_field) \ | |
| 60 | DEFINE_VIRTIO_COMMON_FEATURES(_state, _feature_field), \ | |
| 61 | DEFINE_PROP_BIT("hotplug", _state, _feature_field, VIRTIO_SCSI_F_HOTPLUG, \ | |
| 62 | true), \ | |
| 63 | DEFINE_PROP_BIT("param_change", _state, _feature_field, \ | |
| 64 | VIRTIO_SCSI_F_CHANGE, true) | |
| 973abc7f SH |
65 | |
| 66 | #endif /* _QEMU_VIRTIO_SCSI_H */ |