[qemu.git] / hw / scsi.h

#ifndef QEMU_HW_SCSI_H
#define QEMU_HW_SCSI_H

#include "qdev.h"
#include "block.h"
#include "hw/block-common.h"
#include "sysemu.h"

#define MAX_SCSI_DEVS	255

#define SCSI_CMD_BUF_SIZE     16

typedef struct SCSIBus SCSIBus;
typedef struct SCSIBusInfo SCSIBusInfo;
typedef struct SCSICommand SCSICommand;
typedef struct SCSIDevice SCSIDevice;
typedef struct SCSIRequest SCSIRequest;
typedef struct SCSIReqOps SCSIReqOps;

enum SCSIXferMode {
    SCSI_XFER_NONE,      /*  TEST_UNIT_READY, ...            */
    SCSI_XFER_FROM_DEV,  /*  READ, INQUIRY, MODE_SENSE, ...  */
    SCSI_XFER_TO_DEV,    /*  WRITE, MODE_SELECT, ...         */
};

typedef struct SCSISense {
    uint8_t key;
    uint8_t asc;
    uint8_t ascq;
} SCSISense;

#define SCSI_SENSE_BUF_SIZE 96

struct SCSICommand {
    uint8_t buf[SCSI_CMD_BUF_SIZE];
    int len;
    size_t xfer;
    uint64_t lba;
    enum SCSIXferMode mode;
};

struct SCSIRequest {
    SCSIBus           *bus;
    SCSIDevice        *dev;
    const SCSIReqOps  *ops;
    uint32_t          refcount;
    uint32_t          tag;
    uint32_t          lun;
    uint32_t          status;
    size_t            resid;
    SCSICommand       cmd;
    BlockDriverAIOCB  *aiocb;
    QEMUSGList        *sg;
    bool              dma_started;
    uint8_t sense[SCSI_SENSE_BUF_SIZE];
    uint32_t sense_len;
    bool enqueued;
    bool io_canceled;
    bool retry;
    void *hba_private;
    QTAILQ_ENTRY(SCSIRequest) next;
};

#define TYPE_SCSI_DEVICE "scsi-device"
#define SCSI_DEVICE(obj) \
     OBJECT_CHECK(SCSIDevice, (obj), TYPE_SCSI_DEVICE)
#define SCSI_DEVICE_CLASS(klass) \
     OBJECT_CLASS_CHECK(SCSIDeviceClass, (klass), TYPE_SCSI_DEVICE)
#define SCSI_DEVICE_GET_CLASS(obj) \
     OBJECT_GET_CLASS(SCSIDeviceClass, (obj), TYPE_SCSI_DEVICE)

typedef struct SCSIDeviceClass {
    DeviceClass parent_class;
    int (*init)(SCSIDevice *dev);
    void (*destroy)(SCSIDevice *s);
    SCSIRequest *(*alloc_req)(SCSIDevice *s, uint32_t tag, uint32_t lun,
                              uint8_t *buf, void *hba_private);
    void (*unit_attention_reported)(SCSIDevice *s);
} SCSIDeviceClass;

struct SCSIDevice
{
    DeviceState qdev;
    VMChangeStateEntry *vmsentry;
    QEMUBH *bh;
    uint32_t id;
    BlockConf conf;
    SCSISense unit_attention;
    bool sense_is_ua;
    uint8_t sense[SCSI_SENSE_BUF_SIZE];
    uint32_t sense_len;
    QTAILQ_HEAD(, SCSIRequest) requests;
    uint32_t channel;
    uint32_t lun;
    int blocksize;
    int type;
    uint64_t max_lba;
};

extern const VMStateDescription vmstate_scsi_device;

#define VMSTATE_SCSI_DEVICE(_field, _state) {                        \
    .name       = (stringify(_field)),                               \
    .size       = sizeof(SCSIDevice),                                \
    .vmsd       = &vmstate_scsi_device,                              \
    .flags      = VMS_STRUCT,                                        \
    .offset     = vmstate_offset_value(_state, _field, SCSIDevice),  \
}

/* cdrom.c */
int cdrom_read_toc(int nb_sectors, uint8_t *buf, int msf, int start_track);
int cdrom_read_toc_raw(int nb_sectors, uint8_t *buf, int msf, int session_num);

/* scsi-bus.c */
struct SCSIReqOps {
    size_t size;
    void (*free_req)(SCSIRequest *req);
    int32_t (*send_command)(SCSIRequest *req, uint8_t *buf);
    void (*read_data)(SCSIRequest *req);
    void (*write_data)(SCSIRequest *req);
    void (*cancel_io)(SCSIRequest *req);
    uint8_t *(*get_buf)(SCSIRequest *req);

    void (*save_request)(QEMUFile *f, SCSIRequest *req);
    void (*load_request)(QEMUFile *f, SCSIRequest *req);
};

struct SCSIBusInfo {
    int tcq;
    int max_channel, max_target, max_lun;
    void (*transfer_data)(SCSIRequest *req, uint32_t arg);
    void (*complete)(SCSIRequest *req, uint32_t arg, size_t resid);
    void (*cancel)(SCSIRequest *req);
    void (*hotplug)(SCSIBus *bus, SCSIDevice *dev);
    void (*hot_unplug)(SCSIBus *bus, SCSIDevice *dev);
    void (*change)(SCSIBus *bus, SCSIDevice *dev, SCSISense sense);
    QEMUSGList *(*get_sg_list)(SCSIRequest *req);

    void (*save_request)(QEMUFile *f, SCSIRequest *req);
    void *(*load_request)(QEMUFile *f, SCSIRequest *req);
    void (*free_request)(SCSIBus *bus, void *priv);
};

#define TYPE_SCSI_BUS "SCSI"
#define SCSI_BUS(obj) OBJECT_CHECK(SCSIBus, (obj), TYPE_SCSI_BUS)

struct SCSIBus {
    BusState qbus;
    int busnr;

    SCSISense unit_attention;
    const SCSIBusInfo *info;
};

void scsi_bus_new(SCSIBus *bus, DeviceState *host, const SCSIBusInfo *info);

static inline SCSIBus *scsi_bus_from_device(SCSIDevice *d)
{
    return DO_UPCAST(SCSIBus, qbus, d->qdev.parent_bus);
}

SCSIDevice *scsi_bus_legacy_add_drive(SCSIBus *bus, BlockDriverState *bdrv,
                                      int unit, bool removable, int bootindex);
int scsi_bus_legacy_handle_cmdline(SCSIBus *bus);

/*
 * Predefined sense codes
 */

/* No sense data available */
extern const struct SCSISense sense_code_NO_SENSE;
/* LUN not ready, Manual intervention required */
extern const struct SCSISense sense_code_LUN_NOT_READY;
/* LUN not ready, Medium not present */
extern const struct SCSISense sense_code_NO_MEDIUM;
/* LUN not ready, medium removal prevented */
extern const struct SCSISense sense_code_NOT_READY_REMOVAL_PREVENTED;
/* Hardware error, internal target failure */
extern const struct SCSISense sense_code_TARGET_FAILURE;
/* Illegal request, invalid command operation code */
extern const struct SCSISense sense_code_INVALID_OPCODE;
/* Illegal request, LBA out of range */
extern const struct SCSISense sense_code_LBA_OUT_OF_RANGE;
/* Illegal request, Invalid field in CDB */
extern const struct SCSISense sense_code_INVALID_FIELD;
/* Illegal request, Invalid field in parameter list */
extern const struct SCSISense sense_code_INVALID_PARAM;
/* Illegal request, Parameter list length error */
extern const struct SCSISense sense_code_INVALID_PARAM_LEN;
/* Illegal request, LUN not supported */
extern const struct SCSISense sense_code_LUN_NOT_SUPPORTED;
/* Illegal request, Saving parameters not supported */
extern const struct SCSISense sense_code_SAVING_PARAMS_NOT_SUPPORTED;
/* Illegal request, Incompatible format */
extern const struct SCSISense sense_code_INCOMPATIBLE_FORMAT;
/* Illegal request, medium removal prevented */
extern const struct SCSISense sense_code_ILLEGAL_REQ_REMOVAL_PREVENTED;
/* Command aborted, I/O process terminated */
extern const struct SCSISense sense_code_IO_ERROR;
/* Command aborted, I_T Nexus loss occurred */
extern const struct SCSISense sense_code_I_T_NEXUS_LOSS;
/* Command aborted, Logical Unit failure */
extern const struct SCSISense sense_code_LUN_FAILURE;
/* LUN not ready, Capacity data has changed */
extern const struct SCSISense sense_code_CAPACITY_CHANGED;
/* LUN not ready, Medium not present */
extern const struct SCSISense sense_code_UNIT_ATTENTION_NO_MEDIUM;
/* Unit attention, Power on, reset or bus device reset occurred */
extern const struct SCSISense sense_code_RESET;
/* Unit attention, Medium may have changed*/
extern const struct SCSISense sense_code_MEDIUM_CHANGED;
/* Unit attention, Reported LUNs data has changed */
extern const struct SCSISense sense_code_REPORTED_LUNS_CHANGED;
/* Unit attention, Device internal reset */
extern const struct SCSISense sense_code_DEVICE_INTERNAL_RESET;
/* Data Protection, Write Protected */
extern const struct SCSISense sense_code_WRITE_PROTECTED;

#define SENSE_CODE(x) sense_code_ ## x

int scsi_sense_valid(SCSISense sense);
int scsi_build_sense(uint8_t *in_buf, int in_len,
                     uint8_t *buf, int len, bool fixed);

SCSIRequest *scsi_req_alloc(const SCSIReqOps *reqops, SCSIDevice *d,
                            uint32_t tag, uint32_t lun, void *hba_private);
SCSIRequest *scsi_req_new(SCSIDevice *d, uint32_t tag, uint32_t lun,
                          uint8_t *buf, void *hba_private);
int32_t scsi_req_enqueue(SCSIRequest *req);
void scsi_req_free(SCSIRequest *req);
SCSIRequest *scsi_req_ref(SCSIRequest *req);
void scsi_req_unref(SCSIRequest *req);

void scsi_req_build_sense(SCSIRequest *req, SCSISense sense);
void scsi_req_print(SCSIRequest *req);
void scsi_req_continue(SCSIRequest *req);
void scsi_req_data(SCSIRequest *req, int len);
void scsi_req_complete(SCSIRequest *req, int status);
uint8_t *scsi_req_get_buf(SCSIRequest *req);
int scsi_req_get_sense(SCSIRequest *req, uint8_t *buf, int len);
void scsi_req_abort(SCSIRequest *req, int status);
void scsi_req_cancel(SCSIRequest *req);
void scsi_req_retry(SCSIRequest *req);
void scsi_device_purge_requests(SCSIDevice *sdev, SCSISense sense);
void scsi_device_set_ua(SCSIDevice *sdev, SCSISense sense);
void scsi_device_report_change(SCSIDevice *dev, SCSISense sense);
int scsi_device_get_sense(SCSIDevice *dev, uint8_t *buf, int len, bool fixed);
SCSIDevice *scsi_device_find(SCSIBus *bus, int channel, int target, int lun);

/* scsi-generic.c. */
extern const SCSIReqOps scsi_generic_req_ops;

#endif
Commit	Line	Data
1e37607b GH	1	#ifndef QEMU_HW_SCSI_H
1e37607b GH	2	#define QEMU_HW_SCSI_H
43b443b6 GH	3
43b443b6 GH	4	#include "qdev.h"
4c41d2ef	5	#include "block.h"
31e404f4	6	#include "hw/block-common.h"
71544d30	7	#include "sysemu.h"
43b443b6	8
27d6bf40 MA	9	#define MAX_SCSI_DEVS 255
27d6bf40 MA	10
29362ebe GH	11	#define SCSI_CMD_BUF_SIZE 16
29362ebe GH	12
43b443b6	13	typedef struct SCSIBus SCSIBus;
afd4030c	14	typedef struct SCSIBusInfo SCSIBusInfo;
2599aece	15	typedef struct SCSICommand SCSICommand;
43b443b6	16	typedef struct SCSIDevice SCSIDevice;
5c6c0e51	17	typedef struct SCSIRequest SCSIRequest;
8dbd4574	18	typedef struct SCSIReqOps SCSIReqOps;
43b443b6	19
97a06435 GH	20	enum SCSIXferMode {
	21	SCSI_XFER_NONE, /* TEST_UNIT_READY, ... */
	22	SCSI_XFER_FROM_DEV, /* READ, INQUIRY, MODE_SENSE, ... */
	23	SCSI_XFER_TO_DEV, /* WRITE, MODE_SELECT, ... */
	24	};
	25
a1f0cce2 HR	26	typedef struct SCSISense {
	27	uint8_t key;
	28	uint8_t asc;
	29	uint8_t ascq;
	30	} SCSISense;
	31
b45ef674 PB	32	#define SCSI_SENSE_BUF_SIZE 96
b45ef674 PB	33
2599aece PB	34	struct SCSICommand {
	35	uint8_t buf[SCSI_CMD_BUF_SIZE];
	36	int len;
	37	size_t xfer;
	38	uint64_t lba;
	39	enum SCSIXferMode mode;
	40	};
	41
5c6c0e51	42	struct SCSIRequest {
4c41d2ef GH	43	SCSIBus *bus;
4c41d2ef GH	44	SCSIDevice *dev;
adcf2754	45	const SCSIReqOps *ops;
ad2d30f7	46	uint32_t refcount;
4c41d2ef	47	uint32_t tag;
89b08ae1	48	uint32_t lun;
ed3a34a3	49	uint32_t status;
01e95455	50	size_t resid;
2599aece	51	SCSICommand cmd;
4c41d2ef	52	BlockDriverAIOCB *aiocb;
3d5aba97 PB	53	QEMUSGList *sg;
3d5aba97 PB	54	bool dma_started;
b45ef674 PB	55	uint8_t sense[SCSI_SENSE_BUF_SIZE];
b45ef674 PB	56	uint32_t sense_len;
e8637c90	57	bool enqueued;
e88c591d	58	bool io_canceled;
71544d30	59	bool retry;
c5bf71a9	60	void *hba_private;
9af99d98	61	QTAILQ_ENTRY(SCSIRequest) next;
5c6c0e51	62	};
4c41d2ef	63
b9eea3e6 AL	64	#define TYPE_SCSI_DEVICE "scsi-device"
	65	#define SCSI_DEVICE(obj) \
	66	OBJECT_CHECK(SCSIDevice, (obj), TYPE_SCSI_DEVICE)
	67	#define SCSI_DEVICE_CLASS(klass) \
	68	OBJECT_CLASS_CHECK(SCSIDeviceClass, (klass), TYPE_SCSI_DEVICE)
	69	#define SCSI_DEVICE_GET_CLASS(obj) \
	70	OBJECT_GET_CLASS(SCSIDeviceClass, (obj), TYPE_SCSI_DEVICE)
	71
	72	typedef struct SCSIDeviceClass {
	73	DeviceClass parent_class;
	74	int (init)(SCSIDevice dev);
	75	void (destroy)(SCSIDevice s);
	76	SCSIRequest (alloc_req)(SCSIDevice *s, uint32_t tag, uint32_t lun,
	77	uint8_t buf, void hba_private);
	78	void (unit_attention_reported)(SCSIDevice s);
	79	} SCSIDeviceClass;
	80
43b443b6 GH	81	struct SCSIDevice
	82	{
	83	DeviceState qdev;
71544d30 PB	84	VMChangeStateEntry *vmsentry;
71544d30 PB	85	QEMUBH *bh;
43b443b6	86	uint32_t id;
428c149b	87	BlockConf conf;
6dc06f08	88	SCSISense unit_attention;
3653d8c4	89	bool sense_is_ua;
b45ef674 PB	90	uint8_t sense[SCSI_SENSE_BUF_SIZE];
b45ef674 PB	91	uint32_t sense_len;
9af99d98	92	QTAILQ_HEAD(, SCSIRequest) requests;
0d3545e7	93	uint32_t channel;
87dcd1b2	94	uint32_t lun;
b07995e3	95	int blocksize;
91376656	96	int type;
7877903a	97	uint64_t max_lba;
43b443b6 GH	98	};
43b443b6 GH	99
63f740dd PB	100	extern const VMStateDescription vmstate_scsi_device;
	101
	102	#define VMSTATE_SCSI_DEVICE(_field, _state) { \
	103	.name = (stringify(_field)), \
	104	.size = sizeof(SCSIDevice), \
	105	.vmsd = &vmstate_scsi_device, \
	106	.flags = VMS_STRUCT, \
	107	.offset = vmstate_offset_value(_state, _field, SCSIDevice), \
	108	}
	109
43b443b6 GH	110	/* cdrom.c */
	111	int cdrom_read_toc(int nb_sectors, uint8_t *buf, int msf, int start_track);
	112	int cdrom_read_toc_raw(int nb_sectors, uint8_t *buf, int msf, int session_num);
	113
	114	/* scsi-bus.c */
8dbd4574 PB	115	struct SCSIReqOps {
8dbd4574 PB	116	size_t size;
12010e7b PB	117	void (free_req)(SCSIRequest req);
	118	int32_t (send_command)(SCSIRequest req, uint8_t *buf);
	119	void (read_data)(SCSIRequest req);
	120	void (write_data)(SCSIRequest req);
	121	void (cancel_io)(SCSIRequest req);
	122	uint8_t (get_buf)(SCSIRequest *req);
63f740dd PB	123
	124	void (save_request)(QEMUFile f, SCSIRequest *req);
	125	void (load_request)(QEMUFile f, SCSIRequest *req);
8dbd4574 PB	126	};
8dbd4574 PB	127
afd4030c	128	struct SCSIBusInfo {
7e0380b9	129	int tcq;
0d3545e7	130	int max_channel, max_target, max_lun;
c6df7102	131	void (transfer_data)(SCSIRequest req, uint32_t arg);
01e95455	132	void (complete)(SCSIRequest req, uint32_t arg, size_t resid);
94d3f98a	133	void (cancel)(SCSIRequest req);
350e6e41 CM	134	void (hotplug)(SCSIBus bus, SCSIDevice *dev);
350e6e41 CM	135	void (hot_unplug)(SCSIBus bus, SCSIDevice *dev);
53200fad	136	void (change)(SCSIBus bus, SCSIDevice *dev, SCSISense sense);
3d5aba97	137	QEMUSGList (get_sg_list)(SCSIRequest *req);
63f740dd PB	138
	139	void (save_request)(QEMUFile f, SCSIRequest *req);
	140	void (load_request)(QEMUFile f, SCSIRequest req);
8e86b93c	141	void (free_request)(SCSIBus bus, void *priv);
cfdc1bb0 PB	142	};
cfdc1bb0 PB	143
0d936928 AL	144	#define TYPE_SCSI_BUS "SCSI"
	145	#define SCSI_BUS(obj) OBJECT_CHECK(SCSIBus, (obj), TYPE_SCSI_BUS)
	146
43b443b6 GH	147	struct SCSIBus {
	148	BusState qbus;
	149	int busnr;
	150
6dc06f08	151	SCSISense unit_attention;
afd4030c	152	const SCSIBusInfo *info;
43b443b6 GH	153	};
43b443b6 GH	154
afd4030c	155	void scsi_bus_new(SCSIBus bus, DeviceState host, const SCSIBusInfo *info);
43b443b6 GH	156
	157	static inline SCSIBus scsi_bus_from_device(SCSIDevice d)
	158	{
	159	return DO_UPCAST(SCSIBus, qbus, d->qdev.parent_bus);
	160	}
	161
2d1fd261	162	SCSIDevice scsi_bus_legacy_add_drive(SCSIBus bus, BlockDriverState *bdrv,
ce4e7e46	163	int unit, bool removable, int bootindex);
fa66b909	164	int scsi_bus_legacy_handle_cmdline(SCSIBus *bus);
43b443b6	165
a1f0cce2 HR	166	/*
	167	* Predefined sense codes
	168	*/
	169
	170	/* No sense data available */
	171	extern const struct SCSISense sense_code_NO_SENSE;
	172	/* LUN not ready, Manual intervention required */
	173	extern const struct SCSISense sense_code_LUN_NOT_READY;
	174	/* LUN not ready, Medium not present */
	175	extern const struct SCSISense sense_code_NO_MEDIUM;
68bb01f3 MA	176	/* LUN not ready, medium removal prevented */
68bb01f3 MA	177	extern const struct SCSISense sense_code_NOT_READY_REMOVAL_PREVENTED;
a1f0cce2 HR	178	/* Hardware error, internal target failure */
	179	extern const struct SCSISense sense_code_TARGET_FAILURE;
	180	/* Illegal request, invalid command operation code */
	181	extern const struct SCSISense sense_code_INVALID_OPCODE;
	182	/* Illegal request, LBA out of range */
	183	extern const struct SCSISense sense_code_LBA_OUT_OF_RANGE;
	184	/* Illegal request, Invalid field in CDB */
	185	extern const struct SCSISense sense_code_INVALID_FIELD;
380feaff PB	186	/* Illegal request, Invalid field in parameter list */
	187	extern const struct SCSISense sense_code_INVALID_PARAM;
	188	/* Illegal request, Parameter list length error */
	189	extern const struct SCSISense sense_code_INVALID_PARAM_LEN;
a1f0cce2 HR	190	/* Illegal request, LUN not supported */
a1f0cce2 HR	191	extern const struct SCSISense sense_code_LUN_NOT_SUPPORTED;
a872a304 PB	192	/* Illegal request, Saving parameters not supported */
	193	extern const struct SCSISense sense_code_SAVING_PARAMS_NOT_SUPPORTED;
	194	/* Illegal request, Incompatible format */
	195	extern const struct SCSISense sense_code_INCOMPATIBLE_FORMAT;
68bb01f3 MA	196	/* Illegal request, medium removal prevented */
68bb01f3 MA	197	extern const struct SCSISense sense_code_ILLEGAL_REQ_REMOVAL_PREVENTED;
a1f0cce2 HR	198	/* Command aborted, I/O process terminated */
	199	extern const struct SCSISense sense_code_IO_ERROR;
	200	/* Command aborted, I_T Nexus loss occurred */
	201	extern const struct SCSISense sense_code_I_T_NEXUS_LOSS;
	202	/* Command aborted, Logical Unit failure */
	203	extern const struct SCSISense sense_code_LUN_FAILURE;
aaebacef PB	204	/* LUN not ready, Capacity data has changed */
aaebacef PB	205	extern const struct SCSISense sense_code_CAPACITY_CHANGED;
8a9c16f6 PB	206	/* LUN not ready, Medium not present */
8a9c16f6 PB	207	extern const struct SCSISense sense_code_UNIT_ATTENTION_NO_MEDIUM;
a872a304 PB	208	/* Unit attention, Power on, reset or bus device reset occurred */
	209	extern const struct SCSISense sense_code_RESET;
	210	/* Unit attention, Medium may have changed*/
	211	extern const struct SCSISense sense_code_MEDIUM_CHANGED;
	212	/* Unit attention, Reported LUNs data has changed */
	213	extern const struct SCSISense sense_code_REPORTED_LUNS_CHANGED;
	214	/* Unit attention, Device internal reset */
	215	extern const struct SCSISense sense_code_DEVICE_INTERNAL_RESET;
6a8a685c RS	216	/* Data Protection, Write Protected */
6a8a685c RS	217	extern const struct SCSISense sense_code_WRITE_PROTECTED;
a1f0cce2 HR	218
	219	#define SENSE_CODE(x) sense_code_ ## x
	220
a1f0cce2	221	int scsi_sense_valid(SCSISense sense);
f3b338ef PB	222	int scsi_build_sense(uint8_t *in_buf, int in_len,
f3b338ef PB	223	uint8_t *buf, int len, bool fixed);
a1f0cce2	224
adcf2754 PB	225	SCSIRequest scsi_req_alloc(const SCSIReqOps reqops, SCSIDevice *d,
adcf2754 PB	226	uint32_t tag, uint32_t lun, void *hba_private);
c5bf71a9	227	SCSIRequest scsi_req_new(SCSIDevice d, uint32_t tag, uint32_t lun,
c39ce112 PB	228	uint8_t buf, void hba_private);
c39ce112 PB	229	int32_t scsi_req_enqueue(SCSIRequest *req);
89b08ae1	230	void scsi_req_free(SCSIRequest *req);
ad2d30f7 PB	231	SCSIRequest scsi_req_ref(SCSIRequest req);
ad2d30f7 PB	232	void scsi_req_unref(SCSIRequest *req);
37659e51	233
b45ef674	234	void scsi_req_build_sense(SCSIRequest *req, SCSISense sense);
ec766865	235	void scsi_req_print(SCSIRequest *req);
ad3376cc	236	void scsi_req_continue(SCSIRequest *req);
ab9adc88	237	void scsi_req_data(SCSIRequest *req, int len);
682a9b21	238	void scsi_req_complete(SCSIRequest *req, int status);
0c34459b	239	uint8_t scsi_req_get_buf(SCSIRequest req);
74382217	240	int scsi_req_get_sense(SCSIRequest req, uint8_t buf, int len);
19d110ab	241	void scsi_req_abort(SCSIRequest *req, int status);
94d3f98a	242	void scsi_req_cancel(SCSIRequest *req);
71544d30	243	void scsi_req_retry(SCSIRequest *req);
c7b48872	244	void scsi_device_purge_requests(SCSIDevice *sdev, SCSISense sense);
e48e84ea	245	void scsi_device_set_ua(SCSIDevice *sdev, SCSISense sense);
53200fad	246	void scsi_device_report_change(SCSIDevice *dev, SCSISense sense);
b45ef674	247	int scsi_device_get_sense(SCSIDevice dev, uint8_t buf, int len, bool fixed);
0d3545e7	248	SCSIDevice scsi_device_find(SCSIBus bus, int channel, int target, int lun);
89b08ae1	249
765d1525 PB	250	/* scsi-generic.c. */
	251	extern const SCSIReqOps scsi_generic_req_ops;
	252
43b443b6	253	#endif