| /* | |
| * This header file contains public constants and structures used by | |
| * the scsi code for linux. | |
| * | |
| * For documentation on the OPCODES, MESSAGES, and SENSE values, | |
| * please consult the SCSI standard. | |
| */ | |
| #ifndef _SCSI_SCSI_H | |
| #define _SCSI_SCSI_H | |
| #include <linux/types.h> | |
| /* | |
| * The maximum sg list length SCSI can cope with | |
| * (currently must be a power of 2 between 32 and 256) | |
| */ | |
| #define SCSI_MAX_PHYS_SEGMENTS MAX_PHYS_SEGMENTS | |
| /* | |
| * SCSI command lengths | |
| */ | |
| extern const unsigned char scsi_command_size[8]; | |
| #define COMMAND_SIZE(opcode) scsi_command_size[((opcode) >> 5) & 7] | |
| /* | |
| * Special value for scanning to specify scanning or rescanning of all | |
| * possible channels, (target) ids, or luns on a given shost. | |
| */ | |
| #define SCAN_WILD_CARD ~0 | |
| /* | |
| * SCSI opcodes | |
| */ | |
| #define TEST_UNIT_READY 0x00 | |
| #define REZERO_UNIT 0x01 | |
| #define REQUEST_SENSE 0x03 | |
| #define FORMAT_UNIT 0x04 | |
| #define READ_BLOCK_LIMITS 0x05 | |
| #define REASSIGN_BLOCKS 0x07 | |
| #define INITIALIZE_ELEMENT_STATUS 0x07 | |
| #define READ_6 0x08 | |
| #define WRITE_6 0x0a | |
| #define SEEK_6 0x0b | |
| #define READ_REVERSE 0x0f | |
| #define WRITE_FILEMARKS 0x10 | |
| #define SPACE 0x11 | |
| #define INQUIRY 0x12 | |
| #define RECOVER_BUFFERED_DATA 0x14 | |
| #define MODE_SELECT 0x15 | |
| #define RESERVE 0x16 | |
| #define RELEASE 0x17 | |
| #define COPY 0x18 | |
| #define ERASE 0x19 | |
| #define MODE_SENSE 0x1a | |
| #define START_STOP 0x1b | |
| #define RECEIVE_DIAGNOSTIC 0x1c | |
| #define SEND_DIAGNOSTIC 0x1d | |
| #define ALLOW_MEDIUM_REMOVAL 0x1e | |
| #define SET_WINDOW 0x24 | |
| #define READ_CAPACITY 0x25 | |
| #define READ_10 0x28 | |
| #define WRITE_10 0x2a | |
| #define SEEK_10 0x2b | |
| #define POSITION_TO_ELEMENT 0x2b | |
| #define WRITE_VERIFY 0x2e | |
| #define VERIFY 0x2f | |
| #define SEARCH_HIGH 0x30 | |
| #define SEARCH_EQUAL 0x31 | |
| #define SEARCH_LOW 0x32 | |
| #define SET_LIMITS 0x33 | |
| #define PRE_FETCH 0x34 | |
| #define READ_POSITION 0x34 | |
| #define SYNCHRONIZE_CACHE 0x35 | |
| #define LOCK_UNLOCK_CACHE 0x36 | |
| #define READ_DEFECT_DATA 0x37 | |
| #define MEDIUM_SCAN 0x38 | |
| #define COMPARE 0x39 | |
| #define COPY_VERIFY 0x3a | |
| #define WRITE_BUFFER 0x3b | |
| #define READ_BUFFER 0x3c | |
| #define UPDATE_BLOCK 0x3d | |
| #define READ_LONG 0x3e | |
| #define WRITE_LONG 0x3f | |
| #define CHANGE_DEFINITION 0x40 | |
| #define WRITE_SAME 0x41 | |
| #define READ_TOC 0x43 | |
| #define LOG_SELECT 0x4c | |
| #define LOG_SENSE 0x4d | |
| #define MODE_SELECT_10 0x55 | |
| #define RESERVE_10 0x56 | |
| #define RELEASE_10 0x57 | |
| #define MODE_SENSE_10 0x5a | |
| #define PERSISTENT_RESERVE_IN 0x5e | |
| #define PERSISTENT_RESERVE_OUT 0x5f | |
| #define REPORT_LUNS 0xa0 | |
| #define MOVE_MEDIUM 0xa5 | |
| #define EXCHANGE_MEDIUM 0xa6 | |
| #define READ_12 0xa8 | |
| #define WRITE_12 0xaa | |
| #define WRITE_VERIFY_12 0xae | |
| #define SEARCH_HIGH_12 0xb0 | |
| #define SEARCH_EQUAL_12 0xb1 | |
| #define SEARCH_LOW_12 0xb2 | |
| #define READ_ELEMENT_STATUS 0xb8 | |
| #define SEND_VOLUME_TAG 0xb6 | |
| #define WRITE_LONG_2 0xea | |
| #define READ_16 0x88 | |
| #define WRITE_16 0x8a | |
| #define VERIFY_16 0x8f | |
| #define SERVICE_ACTION_IN 0x9e | |
| /* values for service action in */ | |
| #define SAI_READ_CAPACITY_16 0x10 | |
| /* Values for T10/04-262r7 */ | |
| #define ATA_16 0x85 /* 16-byte pass-thru */ | |
| #define ATA_12 0xa1 /* 12-byte pass-thru */ | |
| /* | |
| * SCSI Architecture Model (SAM) Status codes. Taken from SAM-3 draft | |
| * T10/1561-D Revision 4 Draft dated 7th November 2002. | |
| */ | |
| #define SAM_STAT_GOOD 0x00 | |
| #define SAM_STAT_CHECK_CONDITION 0x02 | |
| #define SAM_STAT_CONDITION_MET 0x04 | |
| #define SAM_STAT_BUSY 0x08 | |
| #define SAM_STAT_INTERMEDIATE 0x10 | |
| #define SAM_STAT_INTERMEDIATE_CONDITION_MET 0x14 | |
| #define SAM_STAT_RESERVATION_CONFLICT 0x18 | |
| #define SAM_STAT_COMMAND_TERMINATED 0x22 /* obsolete in SAM-3 */ | |
| #define SAM_STAT_TASK_SET_FULL 0x28 | |
| #define SAM_STAT_ACA_ACTIVE 0x30 | |
| #define SAM_STAT_TASK_ABORTED 0x40 | |
| /** scsi_status_is_good - check the status return. | |
| * | |
| * @status: the status passed up from the driver (including host and | |
| * driver components) | |
| * | |
| * This returns true for known good conditions that may be treated as | |
| * command completed normally | |
| */ | |
| static inline int scsi_status_is_good(int status) | |
| { | |
| /* | |
| * FIXME: bit0 is listed as reserved in SCSI-2, but is | |
| * significant in SCSI-3. For now, we follow the SCSI-2 | |
| * behaviour and ignore reserved bits. | |
| */ | |
| status &= 0xfe; | |
| return ((status == SAM_STAT_GOOD) || | |
| (status == SAM_STAT_INTERMEDIATE) || | |
| (status == SAM_STAT_INTERMEDIATE_CONDITION_MET) || | |
| /* FIXME: this is obsolete in SAM-3 */ | |
| (status == SAM_STAT_COMMAND_TERMINATED)); | |
| } | |
| /* | |
| * Status codes. These are deprecated as they are shifted 1 bit right | |
| * from those found in the SCSI standards. This causes confusion for | |
| * applications that are ported to several OSes. Prefer SAM Status codes | |
| * above. | |
| */ | |
| #define GOOD 0x00 | |
| #define CHECK_CONDITION 0x01 | |
| #define CONDITION_GOOD 0x02 | |
| #define BUSY 0x04 | |
| #define INTERMEDIATE_GOOD 0x08 | |
| #define INTERMEDIATE_C_GOOD 0x0a | |
| #define RESERVATION_CONFLICT 0x0c | |
| #define COMMAND_TERMINATED 0x11 | |
| #define QUEUE_FULL 0x14 | |
| #define ACA_ACTIVE 0x18 | |
| #define TASK_ABORTED 0x20 | |
| #define STATUS_MASK 0xfe | |
| /* | |
| * SENSE KEYS | |
| */ | |
| #define NO_SENSE 0x00 | |
| #define RECOVERED_ERROR 0x01 | |
| #define NOT_READY 0x02 | |
| #define MEDIUM_ERROR 0x03 | |
| #define HARDWARE_ERROR 0x04 | |
| #define ILLEGAL_REQUEST 0x05 | |
| #define UNIT_ATTENTION 0x06 | |
| #define DATA_PROTECT 0x07 | |
| #define BLANK_CHECK 0x08 | |
| #define COPY_ABORTED 0x0a | |
| #define ABORTED_COMMAND 0x0b | |
| #define VOLUME_OVERFLOW 0x0d | |
| #define MISCOMPARE 0x0e | |
| /* | |
| * DEVICE TYPES | |
| */ | |
| #define TYPE_DISK 0x00 | |
| #define TYPE_TAPE 0x01 | |
| #define TYPE_PRINTER 0x02 | |
| #define TYPE_PROCESSOR 0x03 /* HP scanners use this */ | |
| #define TYPE_WORM 0x04 /* Treated as ROM by our system */ | |
| #define TYPE_ROM 0x05 | |
| #define TYPE_SCANNER 0x06 | |
| #define TYPE_MOD 0x07 /* Magneto-optical disk - | |
| * - treated as TYPE_DISK */ | |
| #define TYPE_MEDIUM_CHANGER 0x08 | |
| #define TYPE_COMM 0x09 /* Communications device */ | |
| #define TYPE_RAID 0x0c | |
| #define TYPE_ENCLOSURE 0x0d /* Enclosure Services Device */ | |
| #define TYPE_RBC 0x0e | |
| #define TYPE_NO_LUN 0x7f | |
| /* Returns a human-readable name for the device */ | |
| extern const char * scsi_device_type(unsigned type); | |
| /* | |
| * standard mode-select header prepended to all mode-select commands | |
| */ | |
| struct ccs_modesel_head { | |
| __u8 _r1; /* reserved */ | |
| __u8 medium; /* device-specific medium type */ | |
| __u8 _r2; /* reserved */ | |
| __u8 block_desc_length; /* block descriptor length */ | |
| __u8 density; /* device-specific density code */ | |
| __u8 number_blocks_hi; /* number of blocks in this block desc */ | |
| __u8 number_blocks_med; | |
| __u8 number_blocks_lo; | |
| __u8 _r3; | |
| __u8 block_length_hi; /* block length for blocks in this desc */ | |
| __u8 block_length_med; | |
| __u8 block_length_lo; | |
| }; | |
| /* | |
| * ScsiLun: 8 byte LUN. | |
| */ | |
| struct scsi_lun { | |
| __u8 scsi_lun[8]; | |
| }; | |
| /* | |
| * MESSAGE CODES | |
| */ | |
| #define COMMAND_COMPLETE 0x00 | |
| #define EXTENDED_MESSAGE 0x01 | |
| #define EXTENDED_MODIFY_DATA_POINTER 0x00 | |
| #define EXTENDED_SDTR 0x01 | |
| #define EXTENDED_EXTENDED_IDENTIFY 0x02 /* SCSI-I only */ | |
| #define EXTENDED_WDTR 0x03 | |
| #define EXTENDED_PPR 0x04 | |
| #define EXTENDED_MODIFY_BIDI_DATA_PTR 0x05 | |
| #define SAVE_POINTERS 0x02 | |
| #define RESTORE_POINTERS 0x03 | |
| #define DISCONNECT 0x04 | |
| #define INITIATOR_ERROR 0x05 | |
| #define ABORT_TASK_SET 0x06 | |
| #define MESSAGE_REJECT 0x07 | |
| #define NOP 0x08 | |
| #define MSG_PARITY_ERROR 0x09 | |
| #define LINKED_CMD_COMPLETE 0x0a | |
| #define LINKED_FLG_CMD_COMPLETE 0x0b | |
| #define TARGET_RESET 0x0c | |
| #define ABORT_TASK 0x0d | |
| #define CLEAR_TASK_SET 0x0e | |
| #define INITIATE_RECOVERY 0x0f /* SCSI-II only */ | |
| #define RELEASE_RECOVERY 0x10 /* SCSI-II only */ | |
| #define CLEAR_ACA 0x16 | |
| #define LOGICAL_UNIT_RESET 0x17 | |
| #define SIMPLE_QUEUE_TAG 0x20 | |
| #define HEAD_OF_QUEUE_TAG 0x21 | |
| #define ORDERED_QUEUE_TAG 0x22 | |
| #define IGNORE_WIDE_RESIDUE 0x23 | |
| #define ACA 0x24 | |
| #define QAS_REQUEST 0x55 | |
| /* Old SCSI2 names, don't use in new code */ | |
| #define BUS_DEVICE_RESET TARGET_RESET | |
| #define ABORT ABORT_TASK_SET | |
| /* | |
| * Host byte codes | |
| */ | |
| #define DID_OK 0x00 /* NO error */ | |
| #define DID_NO_CONNECT 0x01 /* Couldn't connect before timeout period */ | |
| #define DID_BUS_BUSY 0x02 /* BUS stayed busy through time out period */ | |
| #define DID_TIME_OUT 0x03 /* TIMED OUT for other reason */ | |
| #define DID_BAD_TARGET 0x04 /* BAD target. */ | |
| #define DID_ABORT 0x05 /* Told to abort for some other reason */ | |
| #define DID_PARITY 0x06 /* Parity error */ | |
| #define DID_ERROR 0x07 /* Internal error */ | |
| #define DID_RESET 0x08 /* Reset by somebody. */ | |
| #define DID_BAD_INTR 0x09 /* Got an interrupt we weren't expecting. */ | |
| #define DID_PASSTHROUGH 0x0a /* Force command past mid-layer */ | |
| #define DID_SOFT_ERROR 0x0b /* The low level driver just wish a retry */ | |
| #define DID_IMM_RETRY 0x0c /* Retry without decrementing retry count */ | |
| #define DID_REQUEUE 0x0d /* Requeue command (no immediate retry) also | |
| * without decrementing the retry count */ | |
| #define DRIVER_OK 0x00 /* Driver status */ | |
| /* | |
| * These indicate the error that occurred, and what is available. | |
| */ | |
| #define DRIVER_BUSY 0x01 | |
| #define DRIVER_SOFT 0x02 | |
| #define DRIVER_MEDIA 0x03 | |
| #define DRIVER_ERROR 0x04 | |
| #define DRIVER_INVALID 0x05 | |
| #define DRIVER_TIMEOUT 0x06 | |
| #define DRIVER_HARD 0x07 | |
| #define DRIVER_SENSE 0x08 | |
| #define SUGGEST_RETRY 0x10 | |
| #define SUGGEST_ABORT 0x20 | |
| #define SUGGEST_REMAP 0x30 | |
| #define SUGGEST_DIE 0x40 | |
| #define SUGGEST_SENSE 0x80 | |
| #define SUGGEST_IS_OK 0xff | |
| #define DRIVER_MASK 0x0f | |
| #define SUGGEST_MASK 0xf0 | |
| /* | |
| * Internal return values. | |
| */ | |
| #define NEEDS_RETRY 0x2001 | |
| #define SUCCESS 0x2002 | |
| #define FAILED 0x2003 | |
| #define QUEUED 0x2004 | |
| #define SOFT_ERROR 0x2005 | |
| #define ADD_TO_MLQUEUE 0x2006 | |
| #define TIMEOUT_ERROR 0x2007 | |
| /* | |
| * Midlevel queue return values. | |
| */ | |
| #define SCSI_MLQUEUE_HOST_BUSY 0x1055 | |
| #define SCSI_MLQUEUE_DEVICE_BUSY 0x1056 | |
| #define SCSI_MLQUEUE_EH_RETRY 0x1057 | |
| /* | |
| * Use these to separate status msg and our bytes | |
| * | |
| * These are set by: | |
| * | |
| * status byte = set from target device | |
| * msg_byte = return status from host adapter itself. | |
| * host_byte = set by low-level driver to indicate status. | |
| * driver_byte = set by mid-level. | |
| */ | |
| #define status_byte(result) (((result) >> 1) & 0x7f) | |
| #define msg_byte(result) (((result) >> 8) & 0xff) | |
| #define host_byte(result) (((result) >> 16) & 0xff) | |
| #define driver_byte(result) (((result) >> 24) & 0xff) | |
| #define suggestion(result) (driver_byte(result) & SUGGEST_MASK) | |
| #define sense_class(sense) (((sense) >> 4) & 0x7) | |
| #define sense_error(sense) ((sense) & 0xf) | |
| #define sense_valid(sense) ((sense) & 0x80); | |
| /* | |
| * default timeouts | |
| */ | |
| #define FORMAT_UNIT_TIMEOUT (2 * 60 * 60 * HZ) | |
| #define START_STOP_TIMEOUT (60 * HZ) | |
| #define MOVE_MEDIUM_TIMEOUT (5 * 60 * HZ) | |
| #define READ_ELEMENT_STATUS_TIMEOUT (5 * 60 * HZ) | |
| #define READ_DEFECT_DATA_TIMEOUT (60 * HZ ) | |
| #define IDENTIFY_BASE 0x80 | |
| #define IDENTIFY(can_disconnect, lun) (IDENTIFY_BASE |\ | |
| ((can_disconnect) ? 0x40 : 0) |\ | |
| ((lun) & 0x07)) | |
| /* | |
| * struct scsi_device::scsi_level values. For SCSI devices other than those | |
| * prior to SCSI-2 (i.e. over 12 years old) this value is (resp[2] + 1) | |
| * where "resp" is a byte array of the response to an INQUIRY. The scsi_level | |
| * variable is visible to the user via sysfs. | |
| */ | |
| #define SCSI_UNKNOWN 0 | |
| #define SCSI_1 1 | |
| #define SCSI_1_CCS 2 | |
| #define SCSI_2 3 | |
| #define SCSI_3 4 /* SPC */ | |
| #define SCSI_SPC_2 5 | |
| #define SCSI_SPC_3 6 | |
| /* | |
| * INQ PERIPHERAL QUALIFIERS | |
| */ | |
| #define SCSI_INQ_PQ_CON 0x00 | |
| #define SCSI_INQ_PQ_NOT_CON 0x01 | |
| #define SCSI_INQ_PQ_NOT_CAP 0x03 | |
| /* | |
| * Here are some scsi specific ioctl commands which are sometimes useful. | |
| * | |
| * Note that include/linux/cdrom.h also defines IOCTL 0x5300 - 0x5395 | |
| */ | |
| /* Used to obtain PUN and LUN info. Conflicts with CDROMAUDIOBUFSIZ */ | |
| #define SCSI_IOCTL_GET_IDLUN 0x5382 | |
| /* 0x5383 and 0x5384 were used for SCSI_IOCTL_TAGGED_{ENABLE,DISABLE} */ | |
| /* Used to obtain the host number of a device. */ | |
| #define SCSI_IOCTL_PROBE_HOST 0x5385 | |
| /* Used to obtain the bus number for a device */ | |
| #define SCSI_IOCTL_GET_BUS_NUMBER 0x5386 | |
| /* Used to obtain the PCI location of a device */ | |
| #define SCSI_IOCTL_GET_PCI 0x5387 | |
| /* Pull a u32 out of a SCSI message (using BE SCSI conventions) */ | |
| static inline u32 scsi_to_u32(u8 *ptr) | |
| { | |
| return (ptr[0]<<24) + (ptr[1]<<16) + (ptr[2]<<8) + ptr[3]; | |
| } | |
| #endif /* _SCSI_SCSI_H */ |