#include "qdev.h"
#include "block.h"
-#include "block_int.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 SCSIBusOps SCSIBusOps;
+typedef struct SCSIBusInfo SCSIBusInfo;
+typedef struct SCSICommand SCSICommand;
typedef struct SCSIDevice SCSIDevice;
-typedef struct SCSIDeviceInfo SCSIDeviceInfo;
typedef struct SCSIRequest SCSIRequest;
+typedef struct SCSIReqOps SCSIReqOps;
enum SCSIXferMode {
SCSI_XFER_NONE, /* TEST_UNIT_READY, ... */
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;
- struct {
- uint8_t buf[SCSI_CMD_BUF_SIZE];
- int len;
- size_t xfer;
- uint64_t lba;
- enum SCSIXferMode mode;
- } cmd;
+ 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;
- SCSIDeviceInfo *info;
+ 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 */
-typedef int (*scsi_qdev_initfn)(SCSIDevice *dev);
-struct SCSIDeviceInfo {
- DeviceInfo qdev;
- scsi_qdev_initfn init;
- void (*destroy)(SCSIDevice *s);
- SCSIRequest *(*alloc_req)(SCSIDevice *s, uint32_t tag, uint32_t lun);
+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);
- int (*get_sense)(SCSIRequest *req, uint8_t *buf, int len);
+
+ void (*save_request)(QEMUFile *f, SCSIRequest *req);
+ void (*load_request)(QEMUFile *f, SCSIRequest *req);
};
-struct SCSIBusOps {
+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);
+ void (*complete)(SCSIRequest *req, uint32_t arg, size_t resid);
void (*cancel)(SCSIRequest *req);
+ 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;
- int tcq, ndev;
- const SCSIBusOps *ops;
-
- SCSIDevice *devs[MAX_SCSI_DEVS];
+ SCSISense unit_attention;
+ const SCSIBusInfo *info;
};
-void scsi_bus_new(SCSIBus *bus, DeviceState *host, int tcq, int ndev,
- const SCSIBusOps *ops);
-void scsi_qdev_register(SCSIDeviceInfo *info);
+void scsi_bus_new(SCSIBus *bus, DeviceState *host, const SCSIBusInfo *info);
static inline SCSIBus *scsi_bus_from_device(SCSIDevice *d)
{
}
SCSIDevice *scsi_bus_legacy_add_drive(SCSIBus *bus, BlockDriverState *bdrv,
- int unit, bool removable);
+ int unit, bool removable, int bootindex);
int scsi_bus_legacy_handle_cmdline(SCSIBus *bus);
/*
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_FIELD;
/* 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, 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;
#define SENSE_CODE(x) sense_code_ ## x
-int scsi_build_sense(SCSISense sense, uint8_t *buf, int len, int fixed);
int scsi_sense_valid(SCSISense sense);
-
-SCSIRequest *scsi_req_alloc(size_t size, SCSIDevice *d, uint32_t tag, uint32_t lun);
-SCSIRequest *scsi_req_new(SCSIDevice *d, uint32_t tag, uint32_t lun);
-int32_t scsi_req_enqueue(SCSIRequest *req, uint8_t *buf);
+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);
-int scsi_req_parse(SCSIRequest *req, uint8_t *buf);
+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);
+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_device_purge_requests(SCSIDevice *sdev);
+void scsi_req_retry(SCSIRequest *req);
+void scsi_device_purge_requests(SCSIDevice *sdev, 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
projects / qemu.git / blobdiff