#include "qdev.h"
#include "block.h"
+#include "sysemu.h"
-#define SCSI_CMD_BUF_SIZE 16
+#define MAX_SCSI_DEVS 255
-/* scsi-disk.c */
-enum scsi_reason {
- SCSI_REASON_DONE, /* Command complete. */
- SCSI_REASON_DATA /* Transfer complete, more data required. */
-};
+#define SCSI_CMD_BUF_SIZE 16
typedef struct SCSIBus SCSIBus;
+typedef struct SCSIBusInfo SCSIBusInfo;
+typedef struct SCSICommand SCSICommand;
typedef struct SCSIDevice SCSIDevice;
-typedef struct SCSIDeviceInfo SCSIDeviceInfo;
-typedef void (*scsi_completionfn)(SCSIBus *bus, int reason, uint32_t tag,
- uint32_t arg);
+typedef struct SCSIRequest SCSIRequest;
+typedef struct SCSIReqOps SCSIReqOps;
enum SCSIXferMode {
SCSI_XFER_NONE, /* TEST_UNIT_READY, ... */
typedef struct SCSISense {
uint8_t key;
+ uint8_t asc;
+ uint8_t ascq;
} SCSISense;
-typedef struct SCSIRequest {
+#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;
- struct {
- uint8_t buf[SCSI_CMD_BUF_SIZE];
- int len;
- size_t xfer;
- uint64_t lba;
- enum SCSIXferMode mode;
- } cmd;
+ uint32_t status;
+ SCSICommand cmd;
BlockDriverAIOCB *aiocb;
+ 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;
-} SCSIRequest;
+};
+
+#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;
- DriveInfo *dinfo;
- SCSIDeviceInfo *info;
+ 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;
- struct SCSISense sense;
+ uint64_t max_lba;
};
/* cdrom.c */
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);
- int32_t (*send_command)(SCSIDevice *s, uint32_t tag, uint8_t *buf,
- int lun);
- void (*read_data)(SCSIDevice *s, uint32_t tag);
- int (*write_data)(SCSIDevice *s, uint32_t tag);
- void (*cancel_io)(SCSIDevice *s, uint32_t tag);
- uint8_t *(*get_buf)(SCSIDevice *s, uint32_t tag);
+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);
+};
+
+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 (*cancel)(SCSIRequest *req);
};
-typedef void (*SCSIAttachFn)(DeviceState *host, BlockDriverState *bdrv,
- int unit);
struct SCSIBus {
BusState qbus;
int busnr;
- int tcq, ndev;
- scsi_completionfn complete;
-
- SCSIDevice *devs[8];
+ SCSISense unit_attention;
+ const SCSIBusInfo *info;
};
-void scsi_bus_new(SCSIBus *bus, DeviceState *host, int tcq, int ndev,
- scsi_completionfn complete);
-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)
{
return DO_UPCAST(SCSIBus, qbus, d->qdev.parent_bus);
}
-SCSIDevice *scsi_bus_legacy_add_drive(SCSIBus *bus, DriveInfo *dinfo, int unit);
-void scsi_bus_legacy_handle_cmdline(SCSIBus *bus);
-
-void scsi_dev_clear_sense(SCSIDevice *dev);
-void scsi_dev_set_sense(SCSIDevice *dev, uint8_t key);
-
-SCSIRequest *scsi_req_alloc(size_t size, SCSIDevice *d, uint32_t tag, uint32_t lun);
-SCSIRequest *scsi_req_find(SCSIDevice *d, uint32_t tag);
+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, 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_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);
-
-int scsi_req_parse(SCSIRequest *req, uint8_t *buf);
+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);
+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