| #ifndef QEMU_HW_SCSI_H |
| #define QEMU_HW_SCSI_H |
| |
| #include "block/aio.h" |
| #include "hw/block/block.h" |
| #include "hw/qdev-core.h" |
| #include "scsi/utils.h" |
| #include "qemu/notify.h" |
| #include "qom/object.h" |
| |
| #define MAX_SCSI_DEVS 255 |
| |
| typedef struct SCSIBus SCSIBus; |
| typedef struct SCSIBusInfo SCSIBusInfo; |
| typedef struct SCSIDevice SCSIDevice; |
| typedef struct SCSIRequest SCSIRequest; |
| typedef struct SCSIReqOps SCSIReqOps; |
| |
| #define SCSI_SENSE_BUF_SIZE_OLD 96 |
| #define SCSI_SENSE_BUF_SIZE 252 |
| #define DEFAULT_IO_TIMEOUT 30 |
| |
| struct SCSIRequest { |
| SCSIBus *bus; |
| SCSIDevice *dev; |
| const SCSIReqOps *ops; |
| uint32_t refcount; |
| uint32_t tag; |
| uint32_t lun; |
| int16_t status; |
| int16_t host_status; |
| void *hba_private; |
| size_t residual; |
| SCSICommand cmd; |
| NotifierList cancel_notifiers; |
| |
| /* Note: |
| * - fields before sense are initialized by scsi_req_alloc; |
| * - sense[] is uninitialized; |
| * - fields after sense are memset to 0 by scsi_req_alloc. |
| * */ |
| |
| uint8_t sense[SCSI_SENSE_BUF_SIZE]; |
| uint32_t sense_len; |
| bool enqueued; |
| bool io_canceled; |
| bool retry; |
| bool dma_started; |
| BlockAIOCB *aiocb; |
| QEMUSGList *sg; |
| QTAILQ_ENTRY(SCSIRequest) next; |
| }; |
| |
| #define TYPE_SCSI_DEVICE "scsi-device" |
| OBJECT_DECLARE_TYPE(SCSIDevice, SCSIDeviceClass, SCSI_DEVICE) |
| |
| struct SCSIDeviceClass { |
| DeviceClass parent_class; |
| void (*realize)(SCSIDevice *dev, Error **errp); |
| void (*unrealize)(SCSIDevice *dev); |
| int (*parse_cdb)(SCSIDevice *dev, SCSICommand *cmd, uint8_t *buf, |
| void *hba_private); |
| SCSIRequest *(*alloc_req)(SCSIDevice *s, uint32_t tag, uint32_t lun, |
| uint8_t *buf, void *hba_private); |
| void (*unit_attention_reported)(SCSIDevice *s); |
| }; |
| |
| 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; |
| uint64_t wwn; |
| uint64_t port_wwn; |
| int scsi_version; |
| int default_scsi_version; |
| uint32_t io_timeout; |
| bool needs_vpd_bl_emulation; |
| bool hba_supports_iothread; |
| }; |
| |
| 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); |
| 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; |
| int (*parse_cdb)(SCSIDevice *dev, SCSICommand *cmd, uint8_t *buf, |
| void *hba_private); |
| void (*transfer_data)(SCSIRequest *req, uint32_t arg); |
| void (*fail)(SCSIRequest *req); |
| void (*complete)(SCSIRequest *req, size_t residual); |
| void (*cancel)(SCSIRequest *req); |
| 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" |
| OBJECT_DECLARE_SIMPLE_TYPE(SCSIBus, SCSI_BUS) |
| |
| struct SCSIBus { |
| BusState qbus; |
| int busnr; |
| |
| SCSISense unit_attention; |
| const SCSIBusInfo *info; |
| }; |
| |
| /** |
| * scsi_bus_init_named: Initialize a SCSI bus with the specified name |
| * @bus: SCSIBus object to initialize |
| * @bus_size: size of @bus object |
| * @host: Device which owns the bus (generally the SCSI controller) |
| * @info: structure defining callbacks etc for the controller |
| * @bus_name: Name to use for this bus |
| * |
| * This in-place initializes @bus as a new SCSI bus with a name |
| * provided by the caller. It is the caller's responsibility to make |
| * sure that name does not clash with the name of any other bus in the |
| * system. Unless you need the new bus to have a specific name, you |
| * should use scsi_bus_init() instead. |
| */ |
| void scsi_bus_init_named(SCSIBus *bus, size_t bus_size, DeviceState *host, |
| const SCSIBusInfo *info, const char *bus_name); |
| |
| /** |
| * scsi_bus_init: Initialize a SCSI bus |
| * |
| * This in-place-initializes @bus as a new SCSI bus and gives it |
| * an automatically generated unique name. |
| */ |
| static inline void scsi_bus_init(SCSIBus *bus, size_t bus_size, |
| DeviceState *host, const SCSIBusInfo *info) |
| { |
| scsi_bus_init_named(bus, bus_size, host, info, NULL); |
| } |
| |
| 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, BlockBackend *blk, |
| int unit, bool removable, int bootindex, |
| bool share_rw, |
| BlockdevOnError rerror, |
| BlockdevOnError werror, |
| const char *serial, Error **errp); |
| void scsi_bus_legacy_handle_cmdline(SCSIBus *bus); |
| void scsi_legacy_handle_cmdline(void); |
| |
| 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); |
| SCSIRequest *scsi_req_ref(SCSIRequest *req); |
| void scsi_req_unref(SCSIRequest *req); |
| |
| int scsi_bus_parse_cdb(SCSIDevice *dev, SCSICommand *cmd, uint8_t *buf, |
| void *hba_private); |
| int scsi_req_parse_cdb(SCSIDevice *dev, SCSICommand *cmd, 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, int status); |
| void scsi_req_complete_failed(SCSIRequest *req, int host_status); |
| uint8_t *scsi_req_get_buf(SCSIRequest *req); |
| int scsi_req_get_sense(SCSIRequest *req, uint8_t *buf, int len); |
| void scsi_req_cancel_complete(SCSIRequest *req); |
| void scsi_req_cancel(SCSIRequest *req); |
| void scsi_req_cancel_async(SCSIRequest *req, Notifier *notifier); |
| 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); |
| void scsi_device_unit_attention_reported(SCSIDevice *dev); |
| void scsi_generic_read_device_inquiry(SCSIDevice *dev); |
| int scsi_device_get_sense(SCSIDevice *dev, uint8_t *buf, int len, bool fixed); |
| int scsi_SG_IO_FROM_DEV(BlockBackend *blk, uint8_t *cmd, uint8_t cmd_size, |
| uint8_t *buf, uint8_t buf_size, uint32_t timeout); |
| SCSIDevice *scsi_device_find(SCSIBus *bus, int channel, int target, int lun); |
| SCSIDevice *scsi_device_get(SCSIBus *bus, int channel, int target, int lun); |
| |
| /* scsi-generic.c. */ |
| extern const SCSIReqOps scsi_generic_req_ops; |
| |
| #endif |