root / hw / scsi.h @ 0c34459b
History | View | Annotate | Download (4.8 kB)
1 |
#ifndef QEMU_HW_SCSI_H
|
---|---|
2 |
#define QEMU_HW_SCSI_H
|
3 |
|
4 |
#include "qdev.h" |
5 |
#include "block.h" |
6 |
#include "block_int.h" |
7 |
|
8 |
#define MAX_SCSI_DEVS 255 |
9 |
|
10 |
#define SCSI_CMD_BUF_SIZE 16 |
11 |
|
12 |
/* scsi-disk.c */
|
13 |
enum scsi_reason {
|
14 |
SCSI_REASON_DONE, /* Command complete. */
|
15 |
SCSI_REASON_DATA /* Transfer complete, more data required. */
|
16 |
}; |
17 |
|
18 |
typedef struct SCSIBus SCSIBus; |
19 |
typedef struct SCSIBusOps SCSIBusOps; |
20 |
typedef struct SCSIDevice SCSIDevice; |
21 |
typedef struct SCSIDeviceInfo SCSIDeviceInfo; |
22 |
typedef struct SCSIRequest SCSIRequest; |
23 |
|
24 |
enum SCSIXferMode {
|
25 |
SCSI_XFER_NONE, /* TEST_UNIT_READY, ... */
|
26 |
SCSI_XFER_FROM_DEV, /* READ, INQUIRY, MODE_SENSE, ... */
|
27 |
SCSI_XFER_TO_DEV, /* WRITE, MODE_SELECT, ... */
|
28 |
}; |
29 |
|
30 |
typedef struct SCSISense { |
31 |
uint8_t key; |
32 |
uint8_t asc; |
33 |
uint8_t ascq; |
34 |
} SCSISense; |
35 |
|
36 |
struct SCSIRequest {
|
37 |
SCSIBus *bus; |
38 |
SCSIDevice *dev; |
39 |
uint32_t refcount; |
40 |
uint32_t tag; |
41 |
uint32_t lun; |
42 |
uint32_t status; |
43 |
struct {
|
44 |
uint8_t buf[SCSI_CMD_BUF_SIZE]; |
45 |
int len;
|
46 |
size_t xfer; |
47 |
uint64_t lba; |
48 |
enum SCSIXferMode mode;
|
49 |
} cmd; |
50 |
BlockDriverAIOCB *aiocb; |
51 |
bool enqueued;
|
52 |
QTAILQ_ENTRY(SCSIRequest) next; |
53 |
}; |
54 |
|
55 |
struct SCSIDevice
|
56 |
{ |
57 |
DeviceState qdev; |
58 |
uint32_t id; |
59 |
BlockConf conf; |
60 |
SCSIDeviceInfo *info; |
61 |
QTAILQ_HEAD(, SCSIRequest) requests; |
62 |
int blocksize;
|
63 |
int type;
|
64 |
}; |
65 |
|
66 |
/* cdrom.c */
|
67 |
int cdrom_read_toc(int nb_sectors, uint8_t *buf, int msf, int start_track); |
68 |
int cdrom_read_toc_raw(int nb_sectors, uint8_t *buf, int msf, int session_num); |
69 |
|
70 |
/* scsi-bus.c */
|
71 |
typedef int (*scsi_qdev_initfn)(SCSIDevice *dev); |
72 |
struct SCSIDeviceInfo {
|
73 |
DeviceInfo qdev; |
74 |
scsi_qdev_initfn init; |
75 |
void (*destroy)(SCSIDevice *s);
|
76 |
SCSIRequest *(*alloc_req)(SCSIDevice *s, uint32_t tag, uint32_t lun); |
77 |
void (*free_req)(SCSIRequest *req);
|
78 |
int32_t (*send_command)(SCSIRequest *req, uint8_t *buf); |
79 |
void (*read_data)(SCSIRequest *req);
|
80 |
int (*write_data)(SCSIRequest *req);
|
81 |
void (*cancel_io)(SCSIRequest *req);
|
82 |
uint8_t *(*get_buf)(SCSIRequest *req); |
83 |
}; |
84 |
|
85 |
struct SCSIBusOps {
|
86 |
void (*complete)(SCSIRequest *req, int reason, uint32_t arg); |
87 |
void (*cancel)(SCSIRequest *req);
|
88 |
}; |
89 |
|
90 |
struct SCSIBus {
|
91 |
BusState qbus; |
92 |
int busnr;
|
93 |
|
94 |
int tcq, ndev;
|
95 |
const SCSIBusOps *ops;
|
96 |
|
97 |
SCSIDevice *devs[MAX_SCSI_DEVS]; |
98 |
}; |
99 |
|
100 |
void scsi_bus_new(SCSIBus *bus, DeviceState *host, int tcq, int ndev, |
101 |
const SCSIBusOps *ops);
|
102 |
void scsi_qdev_register(SCSIDeviceInfo *info);
|
103 |
|
104 |
static inline SCSIBus *scsi_bus_from_device(SCSIDevice *d) |
105 |
{ |
106 |
return DO_UPCAST(SCSIBus, qbus, d->qdev.parent_bus);
|
107 |
} |
108 |
|
109 |
SCSIDevice *scsi_bus_legacy_add_drive(SCSIBus *bus, BlockDriverState *bdrv, |
110 |
int unit, bool removable); |
111 |
int scsi_bus_legacy_handle_cmdline(SCSIBus *bus);
|
112 |
|
113 |
/*
|
114 |
* Predefined sense codes
|
115 |
*/
|
116 |
|
117 |
/* No sense data available */
|
118 |
extern const struct SCSISense sense_code_NO_SENSE; |
119 |
/* LUN not ready, Manual intervention required */
|
120 |
extern const struct SCSISense sense_code_LUN_NOT_READY; |
121 |
/* LUN not ready, Medium not present */
|
122 |
extern const struct SCSISense sense_code_NO_MEDIUM; |
123 |
/* Hardware error, internal target failure */
|
124 |
extern const struct SCSISense sense_code_TARGET_FAILURE; |
125 |
/* Illegal request, invalid command operation code */
|
126 |
extern const struct SCSISense sense_code_INVALID_OPCODE; |
127 |
/* Illegal request, LBA out of range */
|
128 |
extern const struct SCSISense sense_code_LBA_OUT_OF_RANGE; |
129 |
/* Illegal request, Invalid field in CDB */
|
130 |
extern const struct SCSISense sense_code_INVALID_FIELD; |
131 |
/* Illegal request, LUN not supported */
|
132 |
extern const struct SCSISense sense_code_LUN_NOT_SUPPORTED; |
133 |
/* Command aborted, I/O process terminated */
|
134 |
extern const struct SCSISense sense_code_IO_ERROR; |
135 |
/* Command aborted, I_T Nexus loss occurred */
|
136 |
extern const struct SCSISense sense_code_I_T_NEXUS_LOSS; |
137 |
/* Command aborted, Logical Unit failure */
|
138 |
extern const struct SCSISense sense_code_LUN_FAILURE; |
139 |
|
140 |
#define SENSE_CODE(x) sense_code_ ## x |
141 |
|
142 |
int scsi_build_sense(SCSISense sense, uint8_t *buf, int len, int fixed); |
143 |
int scsi_sense_valid(SCSISense sense);
|
144 |
|
145 |
SCSIRequest *scsi_req_alloc(size_t size, SCSIDevice *d, uint32_t tag, uint32_t lun); |
146 |
SCSIRequest *scsi_req_new(SCSIDevice *d, uint32_t tag, uint32_t lun); |
147 |
int32_t scsi_req_enqueue(SCSIRequest *req, uint8_t *buf); |
148 |
void scsi_req_free(SCSIRequest *req);
|
149 |
SCSIRequest *scsi_req_ref(SCSIRequest *req); |
150 |
void scsi_req_unref(SCSIRequest *req);
|
151 |
|
152 |
int scsi_req_parse(SCSIRequest *req, uint8_t *buf);
|
153 |
void scsi_req_print(SCSIRequest *req);
|
154 |
void scsi_req_continue(SCSIRequest *req);
|
155 |
void scsi_req_data(SCSIRequest *req, int len); |
156 |
void scsi_req_complete(SCSIRequest *req);
|
157 |
uint8_t *scsi_req_get_buf(SCSIRequest *req); |
158 |
void scsi_req_abort(SCSIRequest *req, int status); |
159 |
void scsi_req_cancel(SCSIRequest *req);
|
160 |
void scsi_device_purge_requests(SCSIDevice *sdev);
|
161 |
|
162 |
#endif
|