6 #include "hw/block-common.h"
9 #define MAX_SCSI_DEVS 255
11 #define SCSI_CMD_BUF_SIZE 16
13 typedef struct SCSIBus SCSIBus;
14 typedef struct SCSIBusInfo SCSIBusInfo;
15 typedef struct SCSICommand SCSICommand;
16 typedef struct SCSIDevice SCSIDevice;
17 typedef struct SCSIRequest SCSIRequest;
18 typedef struct SCSIReqOps SCSIReqOps;
21 SCSI_XFER_NONE, /* TEST_UNIT_READY, ... */
22 SCSI_XFER_FROM_DEV, /* READ, INQUIRY, MODE_SENSE, ... */
23 SCSI_XFER_TO_DEV, /* WRITE, MODE_SELECT, ... */
26 typedef struct SCSISense {
32 #define SCSI_SENSE_BUF_SIZE 96
35 uint8_t buf[SCSI_CMD_BUF_SIZE];
39 enum SCSIXferMode mode;
45 const SCSIReqOps *ops;
52 BlockDriverAIOCB *aiocb;
55 uint8_t sense[SCSI_SENSE_BUF_SIZE];
61 QTAILQ_ENTRY(SCSIRequest) next;
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)
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);
84 VMChangeStateEntry *vmsentry;
88 SCSISense unit_attention;
90 uint8_t sense[SCSI_SENSE_BUF_SIZE];
92 QTAILQ_HEAD(, SCSIRequest) requests;
100 extern const VMStateDescription vmstate_scsi_device;
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), \
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);
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);
124 void (*save_request)(QEMUFile *f, SCSIRequest *req);
125 void (*load_request)(QEMUFile *f, SCSIRequest *req);
130 int max_channel, max_target, max_lun;
131 void (*transfer_data)(SCSIRequest *req, uint32_t arg);
132 void (*complete)(SCSIRequest *req, uint32_t arg, size_t resid);
133 void (*cancel)(SCSIRequest *req);
134 QEMUSGList *(*get_sg_list)(SCSIRequest *req);
136 void (*save_request)(QEMUFile *f, SCSIRequest *req);
137 void *(*load_request)(QEMUFile *f, SCSIRequest *req);
138 void (*free_request)(SCSIBus *bus, void *priv);
141 #define TYPE_SCSI_BUS "SCSI"
142 #define SCSI_BUS(obj) OBJECT_CHECK(SCSIBus, (obj), TYPE_SCSI_BUS)
148 SCSISense unit_attention;
149 const SCSIBusInfo *info;
152 void scsi_bus_new(SCSIBus *bus, DeviceState *host, const SCSIBusInfo *info);
154 static inline SCSIBus *scsi_bus_from_device(SCSIDevice *d)
156 return DO_UPCAST(SCSIBus, qbus, d->qdev.parent_bus);
159 SCSIDevice *scsi_bus_legacy_add_drive(SCSIBus *bus, BlockDriverState *bdrv,
160 int unit, bool removable, int bootindex);
161 int scsi_bus_legacy_handle_cmdline(SCSIBus *bus);
164 * Predefined sense codes
167 /* No sense data available */
168 extern const struct SCSISense sense_code_NO_SENSE;
169 /* LUN not ready, Manual intervention required */
170 extern const struct SCSISense sense_code_LUN_NOT_READY;
171 /* LUN not ready, Medium not present */
172 extern const struct SCSISense sense_code_NO_MEDIUM;
173 /* LUN not ready, medium removal prevented */
174 extern const struct SCSISense sense_code_NOT_READY_REMOVAL_PREVENTED;
175 /* Hardware error, internal target failure */
176 extern const struct SCSISense sense_code_TARGET_FAILURE;
177 /* Illegal request, invalid command operation code */
178 extern const struct SCSISense sense_code_INVALID_OPCODE;
179 /* Illegal request, LBA out of range */
180 extern const struct SCSISense sense_code_LBA_OUT_OF_RANGE;
181 /* Illegal request, Invalid field in CDB */
182 extern const struct SCSISense sense_code_INVALID_FIELD;
183 /* Illegal request, LUN not supported */
184 extern const struct SCSISense sense_code_LUN_NOT_SUPPORTED;
185 /* Illegal request, Saving parameters not supported */
186 extern const struct SCSISense sense_code_SAVING_PARAMS_NOT_SUPPORTED;
187 /* Illegal request, Incompatible format */
188 extern const struct SCSISense sense_code_INCOMPATIBLE_FORMAT;
189 /* Illegal request, medium removal prevented */
190 extern const struct SCSISense sense_code_ILLEGAL_REQ_REMOVAL_PREVENTED;
191 /* Command aborted, I/O process terminated */
192 extern const struct SCSISense sense_code_IO_ERROR;
193 /* Command aborted, I_T Nexus loss occurred */
194 extern const struct SCSISense sense_code_I_T_NEXUS_LOSS;
195 /* Command aborted, Logical Unit failure */
196 extern const struct SCSISense sense_code_LUN_FAILURE;
197 /* LUN not ready, Medium not present */
198 extern const struct SCSISense sense_code_UNIT_ATTENTION_NO_MEDIUM;
199 /* Unit attention, Power on, reset or bus device reset occurred */
200 extern const struct SCSISense sense_code_RESET;
201 /* Unit attention, Medium may have changed*/
202 extern const struct SCSISense sense_code_MEDIUM_CHANGED;
203 /* Unit attention, Reported LUNs data has changed */
204 extern const struct SCSISense sense_code_REPORTED_LUNS_CHANGED;
205 /* Unit attention, Device internal reset */
206 extern const struct SCSISense sense_code_DEVICE_INTERNAL_RESET;
208 #define SENSE_CODE(x) sense_code_ ## x
210 int scsi_sense_valid(SCSISense sense);
211 int scsi_build_sense(uint8_t *in_buf, int in_len,
212 uint8_t *buf, int len, bool fixed);
214 SCSIRequest *scsi_req_alloc(const SCSIReqOps *reqops, SCSIDevice *d,
215 uint32_t tag, uint32_t lun, void *hba_private);
216 SCSIRequest *scsi_req_new(SCSIDevice *d, uint32_t tag, uint32_t lun,
217 uint8_t *buf, void *hba_private);
218 int32_t scsi_req_enqueue(SCSIRequest *req);
219 void scsi_req_free(SCSIRequest *req);
220 SCSIRequest *scsi_req_ref(SCSIRequest *req);
221 void scsi_req_unref(SCSIRequest *req);
223 void scsi_req_build_sense(SCSIRequest *req, SCSISense sense);
224 void scsi_req_print(SCSIRequest *req);
225 void scsi_req_continue(SCSIRequest *req);
226 void scsi_req_data(SCSIRequest *req, int len);
227 void scsi_req_complete(SCSIRequest *req, int status);
228 uint8_t *scsi_req_get_buf(SCSIRequest *req);
229 int scsi_req_get_sense(SCSIRequest *req, uint8_t *buf, int len);
230 void scsi_req_abort(SCSIRequest *req, int status);
231 void scsi_req_cancel(SCSIRequest *req);
232 void scsi_req_retry(SCSIRequest *req);
233 void scsi_device_purge_requests(SCSIDevice *sdev, SCSISense sense);
234 int scsi_device_get_sense(SCSIDevice *dev, uint8_t *buf, int len, bool fixed);
235 SCSIDevice *scsi_device_find(SCSIBus *bus, int channel, int target, int lun);
237 /* scsi-generic.c. */
238 extern const SCSIReqOps scsi_generic_req_ops;