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Diffstat (limited to 'include/hw/virtio/virtio-scsi.h')
| -rw-r--r-- | include/hw/virtio/virtio-scsi.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/include/hw/virtio/virtio-scsi.h b/include/hw/virtio/virtio-scsi.h new file mode 100644 index 0000000000..c9d92ca2e8 --- /dev/null +++ b/include/hw/virtio/virtio-scsi.h @@ -0,0 +1,66 @@ +/* + * Virtio SCSI HBA + * + * Copyright IBM, Corp. 2010 + * + * Authors: + * Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> + * + * This work is licensed under the terms of the GNU GPL, version 2. See + * the COPYING file in the top-level directory. + * + */ + +#ifndef _QEMU_VIRTIO_SCSI_H +#define _QEMU_VIRTIO_SCSI_H + +#include "hw/virtio/virtio.h" +#include "hw/pci/pci.h" +#include "hw/scsi/scsi.h" + +#define TYPE_VIRTIO_SCSI "virtio-scsi" +#define VIRTIO_SCSI(obj) \ + OBJECT_CHECK(VirtIOSCSI, (obj), TYPE_VIRTIO_SCSI) + + +/* The ID for virtio_scsi */ +#define VIRTIO_ID_SCSI 8 + +/* Feature Bits */ +#define VIRTIO_SCSI_F_INOUT 0 +#define VIRTIO_SCSI_F_HOTPLUG 1 +#define VIRTIO_SCSI_F_CHANGE 2 + +struct VirtIOSCSIConf { + uint32_t num_queues; + uint32_t max_sectors; + uint32_t cmd_per_lun; +}; + +typedef struct VirtIOSCSI { + VirtIODevice parent_obj; + VirtIOSCSIConf conf; + + SCSIBus bus; + uint32_t sense_size; + uint32_t cdb_size; + int resetting; + bool events_dropped; + VirtQueue *ctrl_vq; + VirtQueue *event_vq; + VirtQueue **cmd_vqs; +} VirtIOSCSI; + +#define DEFINE_VIRTIO_SCSI_PROPERTIES(_state, _conf_field) \ + DEFINE_PROP_UINT32("num_queues", _state, _conf_field.num_queues, 1), \ + DEFINE_PROP_UINT32("max_sectors", _state, _conf_field.max_sectors, 0xFFFF),\ + DEFINE_PROP_UINT32("cmd_per_lun", _state, _conf_field.cmd_per_lun, 128) + +#define DEFINE_VIRTIO_SCSI_FEATURES(_state, _feature_field) \ + DEFINE_VIRTIO_COMMON_FEATURES(_state, _feature_field), \ + DEFINE_PROP_BIT("hotplug", _state, _feature_field, VIRTIO_SCSI_F_HOTPLUG, \ + true), \ + DEFINE_PROP_BIT("param_change", _state, _feature_field, \ + VIRTIO_SCSI_F_CHANGE, true) + +#endif /* _QEMU_VIRTIO_SCSI_H */ |