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/*
* 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.h"
#include "hw/pci/pci.h"
#include "hw/scsi.h"
/* 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 vdev;
DeviceState *qdev;
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 */
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