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1 /*
2  * Virtio SCSI HBA
3  *
4  * Copyright IBM, Corp. 2010
5  *
6  * Authors:
7  *  Stefan Hajnoczi    <[email protected]>
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
17 #include "virtio.h"
18 #include "pci/pci.h"
19
20 /* The ID for virtio_scsi */
21 #define VIRTIO_ID_SCSI  8
22
23 /* Feature Bits */
24 #define VIRTIO_SCSI_F_INOUT                    0
25 #define VIRTIO_SCSI_F_HOTPLUG                  1
26 #define VIRTIO_SCSI_F_CHANGE                   2
27
28 struct VirtIOSCSIConf {
29     uint32_t num_queues;
30     uint32_t max_sectors;
31     uint32_t cmd_per_lun;
32 };
33
34 #define DEFINE_VIRTIO_SCSI_PROPERTIES(_state, _features_field, _conf_field) \
35     DEFINE_VIRTIO_COMMON_FEATURES(_state, _features_field), \
36     DEFINE_PROP_UINT32("num_queues", _state, _conf_field.num_queues, 1), \
37     DEFINE_PROP_UINT32("max_sectors", _state, _conf_field.max_sectors, 0xFFFF), \
38     DEFINE_PROP_UINT32("cmd_per_lun", _state, _conf_field.cmd_per_lun, 128), \
39     DEFINE_PROP_BIT("hotplug", _state, _features_field, VIRTIO_SCSI_F_HOTPLUG, true), \
40     DEFINE_PROP_BIT("param_change", _state, _features_field, VIRTIO_SCSI_F_CHANGE, true)
41
42 #endif /* _QEMU_VIRTIO_SCSI_H */
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