/* SPDX-License-Identifier: GPL-2.0 */
/*
* This header file contains public constants and structures used by
* both the SCSI initiator and the SCSI target code.
*
* For documentation on the OPCODES, MESSAGES, and SENSE values,
* please consult the SCSI standard.
*/
#ifndef _SCSI_PROTO_H_
#define _SCSI_PROTO_H_
#include <linux/build_bug.h>
#include <linux/types.h>
/*
* SCSI opcodes
*/
#define TEST_UNIT_READY 0 x00
#define REZERO_UNIT 0 x01
#define REQUEST_SENSE 0 x03
#define FORMAT_UNIT 0 x04
#define READ_BLOCK_LIMITS 0 x05
#define REASSIGN_BLOCKS 0 x07
#define INITIALIZE_ELEMENT_STATUS 0 x07
#define READ_6 0 x08
#define WRITE_6 0 x0a
#define SEEK_6 0 x0b
#define READ_REVERSE 0 x0f
#define WRITE_FILEMARKS 0 x10
#define SPACE 0 x11
#define INQUIRY 0 x12
#define RECOVER_BUFFERED_DATA 0 x14
#define MODE_SELECT 0 x15
#define RESERVE_6 0 x16
#define RELEASE_6 0 x17
#define COPY 0 x18
#define ERASE 0 x19
#define MODE_SENSE 0 x1a
#define START_STOP 0 x1b
#define RECEIVE_DIAGNOSTIC 0 x1c
#define SEND_DIAGNOSTIC 0 x1d
#define ALLOW_MEDIUM_REMOVAL 0 x1e
#define READ_FORMAT_CAPACITIES 0 x23
#define SET_WINDOW 0 x24
#define READ_CAPACITY 0 x25
#define READ_10 0 x28
#define WRITE_10 0 x2a
#define SEEK_10 0 x2b
#define POSITION_TO_ELEMENT 0 x2b
#define WRITE_VERIFY 0 x2e
#define VERIFY 0 x2f
#define SEARCH_HIGH 0 x30
#define SEARCH_EQUAL 0 x31
#define SEARCH_LOW 0 x32
#define SET_LIMITS 0 x33
#define PRE_FETCH 0 x34
#define READ_POSITION 0 x34
#define SYNCHRONIZE_CACHE 0 x35
#define LOCK_UNLOCK_CACHE 0 x36
#define READ_DEFECT_DATA 0 x37
#define MEDIUM_SCAN 0 x38
#define COMPARE 0 x39
#define COPY_VERIFY 0 x3a
#define WRITE_BUFFER 0 x3b
#define READ_BUFFER 0 x3c
#define UPDATE_BLOCK 0 x3d
#define READ_LONG 0 x3e
#define WRITE_LONG 0 x3f
#define CHANGE_DEFINITION 0 x40
#define WRITE_SAME 0 x41
#define UNMAP 0 x42
#define READ_TOC 0 x43
#define READ_HEADER 0 x44
#define GET_EVENT_STATUS_NOTIFICATION 0 x4a
#define LOG_SELECT 0 x4c
#define LOG_SENSE 0 x4d
#define XDWRITEREAD_10 0 x53
#define MODE_SELECT_10 0 x55
#define RESERVE_10 0 x56
#define RELEASE_10 0 x57
#define MODE_SENSE_10 0 x5a
#define PERSISTENT_RESERVE_IN 0 x5e
#define PERSISTENT_RESERVE_OUT 0 x5f
#define VARIABLE_LENGTH_CMD 0 x7f
#define REPORT_LUNS 0 xa0
#define SECURITY_PROTOCOL_IN 0 xa2
#define MAINTENANCE_IN 0 xa3
#define MAINTENANCE_OUT 0 xa4
#define MOVE_MEDIUM 0 xa5
#define EXCHANGE_MEDIUM 0 xa6
#define READ_12 0 xa8
#define SERVICE_ACTION_OUT_12 0 xa9
#define WRITE_12 0 xaa
#define READ_MEDIA_SERIAL_NUMBER 0 xab /* Obsolete with SPC-2 */
#define SERVICE_ACTION_IN_12 0 xab
#define WRITE_VERIFY_12 0 xae
#define VERIFY_12 0 xaf
#define SEARCH_HIGH_12 0 xb0
#define SEARCH_EQUAL_12 0 xb1
#define SEARCH_LOW_12 0 xb2
#define SECURITY_PROTOCOL_OUT 0 xb5
#define READ_ELEMENT_STATUS 0 xb8
#define SEND_VOLUME_TAG 0 xb6
#define WRITE_LONG_2 0 xea
#define EXTENDED_COPY 0 x83
#define RECEIVE_COPY_RESULTS 0 x84
#define ACCESS_CONTROL_IN 0 x86
#define ACCESS_CONTROL_OUT 0 x87
#define READ_16 0 x88
#define COMPARE_AND_WRITE 0 x89
#define WRITE_16 0 x8a
#define READ_ATTRIBUTE 0 x8c
#define WRITE_ATTRIBUTE 0 x8d
#define WRITE_VERIFY_16 0 x8e
#define VERIFY_16 0 x8f
#define SYNCHRONIZE_CACHE_16 0 x91
#define WRITE_SAME_16 0 x93
#define ZBC_OUT 0 x94
#define ZBC_IN 0 x95
#define WRITE_ATOMIC_16 0 x9c
#define SERVICE_ACTION_BIDIRECTIONAL 0 x9d
#define SERVICE_ACTION_IN_16 0 x9e
#define SERVICE_ACTION_OUT_16 0 x9f
/* values for service action in */
#define SAI_READ_CAPACITY_16 0 x10
#define SAI_GET_LBA_STATUS 0 x12
#define SAI_REPORT_REFERRALS 0 x13
#define SAI_GET_STREAM_STATUS 0 x16
/* values for maintenance in */
#define MI_REPORT_IDENTIFYING_INFORMATION 0 x05
#define MI_REPORT_TARGET_PGS 0 x0a
#define MI_REPORT_ALIASES 0 x0b
#define MI_REPORT_SUPPORTED_OPERATION_CODES 0 x0c
#define MI_REPORT_SUPPORTED_TASK_MANAGEMENT_FUNCTIONS 0 x0d
#define MI_REPORT_PRIORITY 0 x0e
#define MI_REPORT_TIMESTAMP 0 x0f
#define MI_MANAGEMENT_PROTOCOL_IN 0 x10
/* value for MI_REPORT_TARGET_PGS ext header */
#define MI_EXT_HDR_PARAM_FMT 0 x20
/* values for maintenance out */
#define MO_SET_IDENTIFYING_INFORMATION 0 x06
#define MO_SET_TARGET_PGS 0 x0a
#define MO_CHANGE_ALIASES 0 x0b
#define MO_SET_PRIORITY 0 x0e
#define MO_SET_TIMESTAMP 0 x0f
#define MO_MANAGEMENT_PROTOCOL_OUT 0 x10
/* values for ZBC_IN */
#define ZI_REPORT_ZONES 0 x00
/* values for ZBC_OUT */
#define ZO_CLOSE_ZONE 0 x01
#define ZO_FINISH_ZONE 0 x02
#define ZO_OPEN_ZONE 0 x03
#define ZO_RESET_WRITE_POINTER 0 x04
/* values for PR in service action */
#define READ_KEYS 0 x00
#define READ_RESERVATION 0 x01
#define REPORT_CAPABILITES 0 x02
#define READ_FULL_STATUS 0 x03
/* values for variable length command */
#define XDREAD_32 0 x03
#define XDWRITE_32 0 x04
#define XPWRITE_32 0 x06
#define XDWRITEREAD_32 0 x07
#define READ_32 0 x09
#define VERIFY_32 0 x0a
#define WRITE_32 0 x0b
#define WRITE_VERIFY_32 0 x0c
#define WRITE_SAME_32 0 x0d
#define ATA_32 0 x1ff0
/* Values for T10/04-262r7 */
#define ATA_16 0 x85 /* 16-byte pass-thru */
#define ATA_12 0 xa1 /* 12-byte pass-thru */
/* Vendor specific CDBs start here */
#define VENDOR_SPECIFIC_CDB 0 xc0
/*
* SCSI command lengths
*/
#define SCSI_MAX_VARLEN_CDB_SIZE 260
/* defined in T10 SCSI Primary Commands-2 (SPC2) */
struct scsi_varlen_cdb_hdr {
__u8 opcode; /* opcode always == VARIABLE_LENGTH_CMD */
__u8 control;
__u8 misc[5 ];
__u8 additional_cdb_length; /* total cdb length - 8 */
__be16 service_action;
/* service specific data follows */
};
/*
* SCSI Architecture Model (SAM) Status codes. Taken from SAM-3 draft
* T10/1561-D Revision 4 Draft dated 7th November 2002.
*/
enum sam_status {
SAM_STAT_GOOD = 0 x00,
SAM_STAT_CHECK_CONDITION = 0 x02,
SAM_STAT_CONDITION_MET = 0 x04,
SAM_STAT_BUSY = 0 x08,
SAM_STAT_INTERMEDIATE = 0 x10,
SAM_STAT_INTERMEDIATE_CONDITION_MET = 0 x14,
SAM_STAT_RESERVATION_CONFLICT = 0 x18,
SAM_STAT_COMMAND_TERMINATED = 0 x22, /* obsolete in SAM-3 */
SAM_STAT_TASK_SET_FULL = 0 x28,
SAM_STAT_ACA_ACTIVE = 0 x30,
SAM_STAT_TASK_ABORTED = 0 x40,
};
#define STATUS_MASK 0 xfe
/*
* SENSE KEYS
*/
#define NO_SENSE 0 x00
#define RECOVERED_ERROR 0 x01
#define NOT_READY 0 x02
#define MEDIUM_ERROR 0 x03
#define HARDWARE_ERROR 0 x04
#define ILLEGAL_REQUEST 0 x05
#define UNIT_ATTENTION 0 x06
#define DATA_PROTECT 0 x07
#define BLANK_CHECK 0 x08
#define VENDOR_SPECIFIC 0 x09
#define COPY_ABORTED 0 x0a
#define ABORTED_COMMAND 0 x0b
#define VOLUME_OVERFLOW 0 x0d
#define MISCOMPARE 0 x0e
#define COMPLETED 0 x0f
/*
* DEVICE TYPES
* Please keep them in 0x%02x format for $MODALIAS to work
*/
#define TYPE_DISK 0 x00
#define TYPE_TAPE 0 x01
#define TYPE_PRINTER 0 x02
#define TYPE_PROCESSOR 0 x03 /* HP scanners use this */
#define TYPE_WORM 0 x04 /* Treated as ROM by our system */
#define TYPE_ROM 0 x05
#define TYPE_SCANNER 0 x06
#define TYPE_MOD 0 x07 /* Magneto-optical disk -
* - treated as TYPE_DISK */
#define TYPE_MEDIUM_CHANGER 0 x08
#define TYPE_COMM 0 x09 /* Communications device */
#define TYPE_RAID 0 x0c
#define TYPE_ENCLOSURE 0 x0d /* Enclosure Services Device */
#define TYPE_RBC 0 x0e
#define TYPE_OSD 0 x11
#define TYPE_ZBC 0 x14
#define TYPE_WLUN 0 x1e /* well-known logical unit */
#define TYPE_NO_LUN 0 x7f
/* SCSI protocols; these are taken from SPC-3 section 7.5 */
enum scsi_protocol {
SCSI_PROTOCOL_FCP = 0 , /* Fibre Channel */
SCSI_PROTOCOL_SPI = 1 , /* parallel SCSI */
SCSI_PROTOCOL_SSA = 2 , /* Serial Storage Architecture - Obsolete */
SCSI_PROTOCOL_SBP = 3 , /* firewire */
SCSI_PROTOCOL_SRP = 4 , /* Infiniband RDMA */
SCSI_PROTOCOL_ISCSI = 5 ,
SCSI_PROTOCOL_SAS = 6 ,
SCSI_PROTOCOL_ADT = 7 , /* Media Changers */
SCSI_PROTOCOL_ATA = 8 ,
SCSI_PROTOCOL_UNSPEC = 0 xf, /* No specific protocol */
};
/*
* ScsiLun: 8 byte LUN.
*/
struct scsi_lun {
__u8 scsi_lun[8 ];
};
/* SBC-5 IO advice hints group descriptor */
struct scsi_io_group_descriptor {
#if defined (__BIG_ENDIAN)
u8 io_advice_hints_mode: 2 ;
u8 reserved1: 3 ;
u8 st_enble: 1 ;
u8 cs_enble: 1 ;
u8 ic_enable: 1 ;
#elif defined (__LITTLE_ENDIAN)
u8 ic_enable: 1 ;
u8 cs_enble: 1 ;
u8 st_enble: 1 ;
u8 reserved1: 3 ;
u8 io_advice_hints_mode: 2 ;
#else
#error
#endif
u8 reserved2[3 ];
/* Logical block markup descriptor */
#if defined (__BIG_ENDIAN)
u8 acdlu: 1 ;
u8 reserved3: 1 ;
u8 rlbsr: 2 ;
u8 lbm_descriptor_type: 4 ;
#elif defined (__LITTLE_ENDIAN)
u8 lbm_descriptor_type: 4 ;
u8 rlbsr: 2 ;
u8 reserved3: 1 ;
u8 acdlu: 1 ;
#else
#error
#endif
u8 params[2 ];
u8 reserved4;
u8 reserved5[8 ];
};
static_assert(sizeof (struct scsi_io_group_descriptor) == 16 );
/* SCSI stream status descriptor */
struct scsi_stream_status {
#if defined (__BIG_ENDIAN)
u8 perm: 1 ;
u8 reserved1: 7 ;
#elif defined (__LITTLE_ENDIAN)
u8 reserved1: 7 ;
u8 perm: 1 ;
#else
#error
#endif
u8 reserved2;
__be16 stream_identifier;
#if defined (__BIG_ENDIAN)
u8 reserved3: 2 ;
u8 rel_lifetime: 6 ;
#elif defined (__LITTLE_ENDIAN)
u8 rel_lifetime: 6 ;
u8 reserved3: 2 ;
#else
#error
#endif
u8 reserved4[3 ];
};
static_assert(sizeof (struct scsi_stream_status) == 8 );
/* GET STREAM STATUS parameter data */
struct scsi_stream_status_header {
__be32 len; /* length in bytes of following payload */
u16 reserved;
__be16 number_of_open_streams;
};
static_assert(sizeof (struct scsi_stream_status_header) == 8 );
/* SPC asymmetric access states */
#define SCSI_ACCESS_STATE_OPTIMAL 0 x00
#define SCSI_ACCESS_STATE_ACTIVE 0 x01
#define SCSI_ACCESS_STATE_STANDBY 0 x02
#define SCSI_ACCESS_STATE_UNAVAILABLE 0 x03
#define SCSI_ACCESS_STATE_LBA 0 x04
#define SCSI_ACCESS_STATE_OFFLINE 0 x0e
#define SCSI_ACCESS_STATE_TRANSITIONING 0 x0f
/* Values for REPORT TARGET GROUP STATES */
#define SCSI_ACCESS_STATE_MASK 0 x0f
#define SCSI_ACCESS_STATE_PREFERRED 0 x80
/* Reporting options for REPORT ZONES */
enum zbc_zone_reporting_options {
ZBC_ZONE_REPORTING_OPTION_ALL = 0 x00,
ZBC_ZONE_REPORTING_OPTION_EMPTY = 0 x01,
ZBC_ZONE_REPORTING_OPTION_IMPLICIT_OPEN = 0 x02,
ZBC_ZONE_REPORTING_OPTION_EXPLICIT_OPEN = 0 x03,
ZBC_ZONE_REPORTING_OPTION_CLOSED = 0 x04,
ZBC_ZONE_REPORTING_OPTION_FULL = 0 x05,
ZBC_ZONE_REPORTING_OPTION_READONLY = 0 x06,
ZBC_ZONE_REPORTING_OPTION_OFFLINE = 0 x07,
/* 0x08 to 0x0f are reserved */
ZBC_ZONE_REPORTING_OPTION_NEED_RESET_WP = 0 x10,
ZBC_ZONE_REPORTING_OPTION_NON_SEQWRITE = 0 x11,
/* 0x12 to 0x3e are reserved */
ZBC_ZONE_REPORTING_OPTION_NON_WP = 0 x3f,
};
#define ZBC_REPORT_ZONE_PARTIAL 0 x80
/* Zone types of REPORT ZONES zone descriptors */
enum zbc_zone_type {
ZBC_ZONE_TYPE_CONV = 0 x1,
ZBC_ZONE_TYPE_SEQWRITE_REQ = 0 x2,
ZBC_ZONE_TYPE_SEQWRITE_PREF = 0 x3,
ZBC_ZONE_TYPE_SEQ_OR_BEFORE_REQ = 0 x4,
ZBC_ZONE_TYPE_GAP = 0 x5,
/* 0x6 to 0xf are reserved */
};
/* Zone conditions of REPORT ZONES zone descriptors */
enum zbc_zone_cond {
ZBC_ZONE_COND_NO_WP = 0 x0,
ZBC_ZONE_COND_EMPTY = 0 x1,
ZBC_ZONE_COND_IMP_OPEN = 0 x2,
ZBC_ZONE_COND_EXP_OPEN = 0 x3,
ZBC_ZONE_COND_CLOSED = 0 x4,
/* 0x5 to 0xc are reserved */
ZBC_ZONE_COND_READONLY = 0 xd,
ZBC_ZONE_COND_FULL = 0 xe,
ZBC_ZONE_COND_OFFLINE = 0 xf,
};
enum zbc_zone_alignment_method {
ZBC_CONSTANT_ZONE_LENGTH = 0 x1,
ZBC_CONSTANT_ZONE_START_OFFSET = 0 x8,
};
/* Version descriptor values for INQUIRY */
enum scsi_version_descriptor {
SCSI_VERSION_DESCRIPTOR_FCP4 = 0 x0a40,
SCSI_VERSION_DESCRIPTOR_ISCSI = 0 x0960,
SCSI_VERSION_DESCRIPTOR_SAM5 = 0 x00a0,
SCSI_VERSION_DESCRIPTOR_SAS3 = 0 x0c60,
SCSI_VERSION_DESCRIPTOR_SBC3 = 0 x04c0,
SCSI_VERSION_DESCRIPTOR_SBP3 = 0 x0980,
SCSI_VERSION_DESCRIPTOR_SPC4 = 0 x0460,
SCSI_VERSION_DESCRIPTOR_SRP = 0 x0940
};
enum scsi_support_opcode {
SCSI_SUPPORT_NO_INFO = 0 ,
SCSI_SUPPORT_NOT_SUPPORTED = 1 ,
SCSI_SUPPORT_FULL = 3 ,
SCSI_SUPPORT_VENDOR = 5 ,
};
#define SCSI_CONTROL_MASK 0
#define SCSI_GROUP_NUMBER_MASK 0
#endif /* _SCSI_PROTO_H_ */
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