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android_kernel_xiaomi_sm8350/drivers/scsi/bfa/include/protocol/scsi.h
Jing Huang 7725ccfda5 [SCSI] bfa: Brocade BFA FC SCSI driver 
Add new driver for Brocade Hardware

Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-02 09:47:40 -05:00

1649 lines
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/*
* Copyright (c) 2005-2009 Brocade Communications Systems, Inc.
* All rights reserved
* www.brocade.com
*
* Linux driver for Brocade Fibre Channel Host Bus Adapter.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License (GPL) Version 2 as
* published by the Free Software Foundation
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*/
#ifndef __SCSI_H__
#define __SCSI_H__
#include <protocol/types.h>
#pragma pack(1)
/*
* generic SCSI cdb definition
*/
#define SCSI_MAX_CDBLEN 16
struct scsi_cdb_s{
u8 scsi_cdb[SCSI_MAX_CDBLEN];
};
/*
* scsi lun serial number definition
*/
#define SCSI_LUN_SN_LEN 32
struct scsi_lun_sn_s{
u8 lun_sn[SCSI_LUN_SN_LEN];
};
/*
* SCSI Direct Access Commands
*/
enum {
SCSI_OP_TEST_UNIT_READY = 0x00,
SCSI_OP_REQUEST_SENSE = 0x03,
SCSI_OP_FORMAT_UNIT = 0x04,
SCSI_OP_READ6 = 0x08,
SCSI_OP_WRITE6 = 0x0A,
SCSI_OP_WRITE_FILEMARKS = 0x10,
SCSI_OP_INQUIRY = 0x12,
SCSI_OP_MODE_SELECT6 = 0x15,
SCSI_OP_RESERVE6 = 0x16,
SCSI_OP_RELEASE6 = 0x17,
SCSI_OP_MODE_SENSE6 = 0x1A,
SCSI_OP_START_STOP_UNIT = 0x1B,
SCSI_OP_SEND_DIAGNOSTIC = 0x1D,
SCSI_OP_READ_CAPACITY = 0x25,
SCSI_OP_READ10 = 0x28,
SCSI_OP_WRITE10 = 0x2A,
SCSI_OP_VERIFY10 = 0x2F,
SCSI_OP_READ_DEFECT_DATA = 0x37,
SCSI_OP_LOG_SELECT = 0x4C,
SCSI_OP_LOG_SENSE = 0x4D,
SCSI_OP_MODE_SELECT10 = 0x55,
SCSI_OP_RESERVE10 = 0x56,
SCSI_OP_RELEASE10 = 0x57,
SCSI_OP_MODE_SENSE10 = 0x5A,
SCSI_OP_PER_RESERVE_IN = 0x5E,
SCSI_OP_PER_RESERVE_OUR = 0x5E,
SCSI_OP_READ16 = 0x88,
SCSI_OP_WRITE16 = 0x8A,
SCSI_OP_VERIFY16 = 0x8F,
SCSI_OP_READ_CAPACITY16 = 0x9E,
SCSI_OP_REPORT_LUNS = 0xA0,
SCSI_OP_READ12 = 0xA8,
SCSI_OP_WRITE12 = 0xAA,
SCSI_OP_UNDEF = 0xFF,
};
/*
* SCSI START_STOP_UNIT command
*/
struct scsi_start_stop_unit_s{
u8 opcode;
#ifdef __BIGENDIAN
u8 lun:3;
u8 reserved1:4;
u8 immed:1;
#else
u8 immed:1;
u8 reserved1:4;
u8 lun:3;
#endif
u8 reserved2;
u8 reserved3;
#ifdef __BIGENDIAN
u8 power_conditions:4;
u8 reserved4:2;
u8 loEj:1;
u8 start:1;
#else
u8 start:1;
u8 loEj:1;
u8 reserved4:2;
u8 power_conditions:4;
#endif
u8 control;
};
/*
* SCSI SEND_DIAGNOSTIC command
*/
struct scsi_send_diagnostic_s{
u8 opcode;
#ifdef __BIGENDIAN
u8 self_test_code:3;
u8 pf:1;
u8 reserved1:1;
u8 self_test:1;
u8 dev_offl:1;
u8 unit_offl:1;
#else
u8 unit_offl:1;
u8 dev_offl:1;
u8 self_test:1;
u8 reserved1:1;
u8 pf:1;
u8 self_test_code:3;
#endif
u8 reserved2;
u8 param_list_length[2]; /* MSB first */
u8 control;
};
/*
* SCSI READ10/WRITE10 commands
*/
struct scsi_rw10_s{
u8 opcode;
#ifdef __BIGENDIAN
u8 lun:3;
u8 dpo:1; /* Disable Page Out */
u8 fua:1; /* Force Unit Access */
u8 reserved1:2;
u8 rel_adr:1; /* relative address */
#else
u8 rel_adr:1;
u8 reserved1:2;
u8 fua:1;
u8 dpo:1;
u8 lun:3;
#endif
u8 lba0; /* logical block address - MSB */
u8 lba1;
u8 lba2;
u8 lba3; /* LSB */
u8 reserved3;
u8 xfer_length0; /* transfer length in blocks - MSB */
u8 xfer_length1; /* LSB */
u8 control;
};
#define SCSI_CDB10_GET_LBA(cdb) \
(((cdb)->lba0 << 24) | ((cdb)->lba1 << 16) | \
((cdb)->lba2 << 8) | (cdb)->lba3)
#define SCSI_CDB10_SET_LBA(cdb, lba) { \
(cdb)->lba0 = lba >> 24; \
(cdb)->lba1 = (lba >> 16) & 0xFF; \
(cdb)->lba2 = (lba >> 8) & 0xFF; \
(cdb)->lba3 = lba & 0xFF; \
}
#define SCSI_CDB10_GET_TL(cdb) \
((cdb)->xfer_length0 << 8 | (cdb)->xfer_length1)
#define SCSI_CDB10_SET_TL(cdb, tl) { \
(cdb)->xfer_length0 = tl >> 8; \
(cdb)->xfer_length1 = tl & 0xFF; \
}
/*
* SCSI READ6/WRITE6 commands
*/
struct scsi_rw6_s{
u8 opcode;
#ifdef __BIGENDIAN
u8 lun:3;
u8 lba0:5; /* MSb */
#else
u8 lba0:5; /* MSb */
u8 lun:3;
#endif
u8 lba1;
u8 lba2; /* LSB */
u8 xfer_length;
u8 control;
};
#define SCSI_TAPE_CDB6_GET_TL(cdb) \
(((cdb)->tl0 << 16) | ((cdb)->tl1 << 8) | (cdb)->tl2)
#define SCSI_TAPE_CDB6_SET_TL(cdb, tl) { \
(cdb)->tl0 = tl >> 16; \
(cdb)->tl1 = (tl >> 8) & 0xFF; \
(cdb)->tl2 = tl & 0xFF; \
}
/*
* SCSI sequential (TAPE) wrtie command
*/
struct scsi_tape_wr_s{
u8 opcode;
#ifdef __BIGENDIAN
u8 rsvd:7;
u8 fixed:1; /* MSb */
#else
u8 fixed:1; /* MSb */
u8 rsvd:7;
#endif
u8 tl0; /* Msb */
u8 tl1;
u8 tl2; /* Lsb */
u8 control;
};
#define SCSI_CDB6_GET_LBA(cdb) \
(((cdb)->lba0 << 16) | ((cdb)->lba1 << 8) | (cdb)->lba2)
#define SCSI_CDB6_SET_LBA(cdb, lba) { \
(cdb)->lba0 = lba >> 16; \
(cdb)->lba1 = (lba >> 8) & 0xFF; \
(cdb)->lba2 = lba & 0xFF; \
}
#define SCSI_CDB6_GET_TL(cdb) ((cdb)->xfer_length)
#define SCSI_CDB6_SET_TL(cdb, tl) { \
(cdb)->xfer_length = tl; \
}
/*
* SCSI sense data format
*/
struct scsi_sense_s{
#ifdef __BIGENDIAN
u8 valid:1;
u8 rsp_code:7;
#else
u8 rsp_code:7;
u8 valid:1;
#endif
u8 seg_num;
#ifdef __BIGENDIAN
u8 file_mark:1;
u8 eom:1; /* end of media */
u8 ili:1; /* incorrect length indicator */
u8 reserved:1;
u8 sense_key:4;
#else
u8 sense_key:4;
u8 reserved:1;
u8 ili:1; /* incorrect length indicator */
u8 eom:1; /* end of media */
u8 file_mark:1;
#endif
u8 information[4]; /* device-type or command specific info
*/
u8 add_sense_length;
/* additional sense length */
u8 command_info[4];/* command specific information
*/
u8 asc; /* additional sense code */
u8 ascq; /* additional sense code qualifier */
u8 fru_code; /* field replaceable unit code */
#ifdef __BIGENDIAN
u8 sksv:1; /* sense key specific valid */
u8 c_d:1; /* command/data bit */
u8 res1:2;
u8 bpv:1; /* bit pointer valid */
u8 bpointer:3; /* bit pointer */
#else
u8 bpointer:3; /* bit pointer */
u8 bpv:1; /* bit pointer valid */
u8 res1:2;
u8 c_d:1; /* command/data bit */
u8 sksv:1; /* sense key specific valid */
#endif
u8 fpointer[2]; /* field pointer */
};
#define SCSI_SENSE_CUR_ERR 0x70
#define SCSI_SENSE_DEF_ERR 0x71
/*
* SCSI sense key values
*/
#define SCSI_SK_NO_SENSE 0x0
#define SCSI_SK_REC_ERR 0x1 /* recovered error */
#define SCSI_SK_NOT_READY 0x2
#define SCSI_SK_MED_ERR 0x3 /* medium error */
#define SCSI_SK_HW_ERR 0x4 /* hardware error */
#define SCSI_SK_ILLEGAL_REQ 0x5
#define SCSI_SK_UNIT_ATT 0x6 /* unit attention */
#define SCSI_SK_DATA_PROTECT 0x7
#define SCSI_SK_BLANK_CHECK 0x8
#define SCSI_SK_VENDOR_SPEC 0x9
#define SCSI_SK_COPY_ABORTED 0xA
#define SCSI_SK_ABORTED_CMND 0xB
#define SCSI_SK_VOL_OVERFLOW 0xD
#define SCSI_SK_MISCOMPARE 0xE
/*
* SCSI additional sense codes
*/
#define SCSI_ASC_NO_ADD_SENSE 0x00
#define SCSI_ASC_LUN_NOT_READY 0x04
#define SCSI_ASC_LUN_COMMUNICATION 0x08
#define SCSI_ASC_WRITE_ERROR 0x0C
#define SCSI_ASC_INVALID_CMND_CODE 0x20
#define SCSI_ASC_BAD_LBA 0x21
#define SCSI_ASC_INVALID_FIELD_IN_CDB 0x24
#define SCSI_ASC_LUN_NOT_SUPPORTED 0x25
#define SCSI_ASC_LUN_WRITE_PROTECT 0x27
#define SCSI_ASC_POWERON_BDR 0x29 /* power on reset, bus reset,
* bus device reset
*/
#define SCSI_ASC_PARAMS_CHANGED 0x2A
#define SCSI_ASC_CMND_CLEARED_BY_A_I 0x2F
#define SCSI_ASC_SAVING_PARAM_NOTSUPP 0x39
#define SCSI_ASC_TOCC 0x3F /* target operating condtions
* changed
*/
#define SCSI_ASC_PARITY_ERROR 0x47
#define SCSI_ASC_CMND_PHASE_ERROR 0x4A
#define SCSI_ASC_DATA_PHASE_ERROR 0x4B
#define SCSI_ASC_VENDOR_SPEC 0x7F
/*
* SCSI additional sense code qualifiers
*/
#define SCSI_ASCQ_CAUSE_NOT_REPORT 0x00
#define SCSI_ASCQ_BECOMING_READY 0x01
#define SCSI_ASCQ_INIT_CMD_REQ 0x02
#define SCSI_ASCQ_FORMAT_IN_PROGRESS 0x04
#define SCSI_ASCQ_OPERATION_IN_PROGRESS 0x07
#define SCSI_ASCQ_SELF_TEST_IN_PROGRESS 0x09
#define SCSI_ASCQ_WR_UNEXP_UNSOL_DATA 0x0C
#define SCSI_ASCQ_WR_NOTENG_UNSOL_DATA 0x0D
#define SCSI_ASCQ_LBA_OUT_OF_RANGE 0x00
#define SCSI_ASCQ_INVALID_ELEMENT_ADDR 0x01
#define SCSI_ASCQ_LUN_WRITE_PROTECTED 0x00
#define SCSI_ASCQ_LUN_HW_WRITE_PROTECTED 0x01
#define SCSI_ASCQ_LUN_SW_WRITE_PROTECTED 0x02
#define SCSI_ASCQ_POR 0x01 /* power on reset */
#define SCSI_ASCQ_SBR 0x02 /* scsi bus reset */
#define SCSI_ASCQ_BDR 0x03 /* bus device reset */
#define SCSI_ASCQ_DIR 0x04 /* device internal reset */
#define SCSI_ASCQ_MODE_PARAMS_CHANGED 0x01
#define SCSI_ASCQ_LOG_PARAMS_CHANGED 0x02
#define SCSI_ASCQ_RESERVATIONS_PREEMPTED 0x03
#define SCSI_ASCQ_RESERVATIONS_RELEASED 0x04
#define SCSI_ASCQ_REGISTRATIONS_PREEMPTED 0x05
#define SCSI_ASCQ_MICROCODE_CHANGED 0x01
#define SCSI_ASCQ_CHANGED_OPER_COND 0x02
#define SCSI_ASCQ_INQ_CHANGED 0x03 /* inquiry data changed */
#define SCSI_ASCQ_DI_CHANGED 0x05 /* device id changed */
#define SCSI_ASCQ_RL_DATA_CHANGED 0x0E /* report luns data changed */
#define SCSI_ASCQ_DP_CRC_ERR 0x01 /* data phase crc error */
#define SCSI_ASCQ_DP_SCSI_PARITY_ERR 0x02 /* data phase scsi parity error
*/
#define SCSI_ASCQ_IU_CRC_ERR 0x03 /* information unit crc error */
#define SCSI_ASCQ_PROTO_SERV_CRC_ERR 0x05
#define SCSI_ASCQ_LUN_TIME_OUT 0x01
/* ------------------------------------------------------------
* SCSI INQUIRY
* ------------------------------------------------------------*/
struct scsi_inquiry_s{
u8 opcode;
#ifdef __BIGENDIAN
u8 lun:3;
u8 reserved1:3;
u8 cmd_dt:1;
u8 evpd:1;
#else
u8 evpd:1;
u8 cmd_dt:1;
u8 reserved1:3;
u8 lun:3;
#endif
u8 page_code;
u8 reserved2;
u8 alloc_length;
u8 control;
};
struct scsi_inquiry_vendor_s{
u8 vendor_id[8];
};
struct scsi_inquiry_prodid_s{
u8 product_id[16];
};
struct scsi_inquiry_prodrev_s{
u8 product_rev[4];
};
struct scsi_inquiry_data_s{
#ifdef __BIGENDIAN
u8 peripheral_qual:3; /* peripheral qualifier */
u8 device_type:5; /* peripheral device type */
u8 rmb:1; /* removable medium bit */
u8 device_type_mod:7; /* device type modifier */
u8 version;
u8 aenc:1; /* async event notification capability
*/
u8 trm_iop:1; /* terminate I/O process */
u8 norm_aca:1; /* normal ACA supported */
u8 hi_support:1; /* SCSI-3: supports REPORT LUNS */
u8 rsp_data_format:4;
u8 additional_len;
u8 sccs:1;
u8 reserved1:7;
u8 reserved2:1;
u8 enc_serv:1; /* enclosure service component */
u8 reserved3:1;
u8 multi_port:1; /* multi-port device */
u8 m_chngr:1; /* device in medium transport element */
u8 ack_req_q:1; /* SIP specific bit */
u8 addr32:1; /* SIP specific bit */
u8 addr16:1; /* SIP specific bit */
u8 rel_adr:1; /* relative address */
u8 w_bus32:1;
u8 w_bus16:1;
u8 synchronous:1;
u8 linked_commands:1;
u8 trans_dis:1;
u8 cmd_queue:1; /* command queueing supported */
u8 soft_reset:1; /* soft reset alternative (VS) */
#else
u8 device_type:5; /* peripheral device type */
u8 peripheral_qual:3;
/* peripheral qualifier */
u8 device_type_mod:7;
/* device type modifier */
u8 rmb:1; /* removable medium bit */
u8 version;
u8 rsp_data_format:4;
u8 hi_support:1; /* SCSI-3: supports REPORT LUNS */
u8 norm_aca:1; /* normal ACA supported */
u8 terminate_iop:1;/* terminate I/O process */
u8 aenc:1; /* async event notification capability
*/
u8 additional_len;
u8 reserved1:7;
u8 sccs:1;
u8 addr16:1; /* SIP specific bit */
u8 addr32:1; /* SIP specific bit */
u8 ack_req_q:1; /* SIP specific bit */
u8 m_chngr:1; /* device in medium transport element */
u8 multi_port:1; /* multi-port device */
u8 reserved3:1; /* TBD - Vendor Specific */
u8 enc_serv:1; /* enclosure service component */
u8 reserved2:1;
u8 soft_seset:1; /* soft reset alternative (VS) */
u8 cmd_queue:1; /* command queueing supported */
u8 trans_dis:1;
u8 linked_commands:1;
u8 synchronous:1;
u8 w_bus16:1;
u8 w_bus32:1;
u8 rel_adr:1; /* relative address */
#endif
struct scsi_inquiry_vendor_s vendor_id;
struct scsi_inquiry_prodid_s product_id;
struct scsi_inquiry_prodrev_s product_rev;
u8 vendor_specific[20];
u8 reserved4[40];
};
/*
* inquiry.peripheral_qual field values
*/
#define SCSI_DEVQUAL_DEFAULT 0
#define SCSI_DEVQUAL_NOT_CONNECTED 1
#define SCSI_DEVQUAL_NOT_SUPPORTED 3
/*
* inquiry.device_type field values
*/
#define SCSI_DEVICE_DIRECT_ACCESS 0x00
#define SCSI_DEVICE_SEQ_ACCESS 0x01
#define SCSI_DEVICE_ARRAY_CONTROLLER 0x0C
#define SCSI_DEVICE_UNKNOWN 0x1F
/*
* inquiry.version
*/
#define SCSI_VERSION_ANSI_X3131 2 /* ANSI X3.131 SCSI-2 */
#define SCSI_VERSION_SPC 3 /* SPC (SCSI-3), ANSI X3.301:1997 */
#define SCSI_VERSION_SPC_2 4 /* SPC-2 */
/*
* response data format
*/
#define SCSI_RSP_DATA_FORMAT 2 /* SCSI-2 & SPC */
/*
* SCSI inquiry page codes
*/
#define SCSI_INQ_PAGE_VPD_PAGES 0x00 /* supported vpd pages */
#define SCSI_INQ_PAGE_USN_PAGE 0x80 /* unit serial number page */
#define SCSI_INQ_PAGE_DEV_IDENT 0x83 /* device indentification page
*/
#define SCSI_INQ_PAGES_MAX 3
/*
* supported vital product data pages
*/
struct scsi_inq_page_vpd_pages_s{
#ifdef __BIGENDIAN
u8 peripheral_qual:3;
u8 device_type:5;
#else
u8 device_type:5;
u8 peripheral_qual:3;
#endif
u8 page_code;
u8 reserved;
u8 page_length;
u8 pages[SCSI_INQ_PAGES_MAX];
};
/*
* Unit serial number page
*/
#define SCSI_INQ_USN_LEN 32
struct scsi_inq_usn_s{
char usn[SCSI_INQ_USN_LEN];
};
struct scsi_inq_page_usn_s{
#ifdef __BIGENDIAN
u8 peripheral_qual:3;
u8 device_type:5;
#else
u8 device_type:5;
u8 peripheral_qual:3;
#endif
u8 page_code;
u8 reserved1;
u8 page_length;
struct scsi_inq_usn_s usn;
};
enum {
SCSI_INQ_DIP_CODE_BINARY = 1, /* identifier has binary value */
SCSI_INQ_DIP_CODE_ASCII = 2, /* identifier has ascii value */
};
enum {
SCSI_INQ_DIP_ASSOC_LUN = 0, /* id is associated with device */
SCSI_INQ_DIP_ASSOC_PORT = 1, /* id is associated with port that
* received the request
*/
};
enum {
SCSI_INQ_ID_TYPE_VENDOR = 1,
SCSI_INQ_ID_TYPE_IEEE = 2,
SCSI_INQ_ID_TYPE_FC_FS = 3,
SCSI_INQ_ID_TYPE_OTHER = 4,
};
struct scsi_inq_dip_desc_s{
#ifdef __BIGENDIAN
u8 res0:4;
u8 code_set:4;
u8 res1:2;
u8 association:2;
u8 id_type:4;
#else
u8 code_set:4;
u8 res0:4;
u8 id_type:4;
u8 association:2;
u8 res1:2;
#endif
u8 res2;
u8 id_len;
struct scsi_lun_sn_s id;
};
/*
* Device indentification page
*/
struct scsi_inq_page_dev_ident_s{
#ifdef __BIGENDIAN
u8 peripheral_qual:3;
u8 device_type:5;
#else
u8 device_type:5;
u8 peripheral_qual:3;
#endif
u8 page_code;
u8 reserved1;
u8 page_length;
struct scsi_inq_dip_desc_s desc;
};
/* ------------------------------------------------------------
* READ CAPACITY
* ------------------------------------------------------------
*/
struct scsi_read_capacity_s{
u8 opcode;
#ifdef __BIGENDIAN
u8 lun:3;
u8 reserved1:4;
u8 rel_adr:1;
#else
u8 rel_adr:1;
u8 reserved1:4;
u8 lun:3;
#endif
u8 lba0; /* MSB */
u8 lba1;
u8 lba2;
u8 lba3; /* LSB */
u8 reserved2;
u8 reserved3;
#ifdef __BIGENDIAN
u8 reserved4:7;
u8 pmi:1; /* partial medium indicator */
#else
u8 pmi:1; /* partial medium indicator */
u8 reserved4:7;
#endif
u8 control;
};
struct scsi_read_capacity_data_s{
u32 max_lba; /* maximum LBA available */
u32 block_length; /* in bytes */
};
struct scsi_read_capacity16_data_s{
u64 lba; /* maximum LBA available */
u32 block_length; /* in bytes */
#ifdef __BIGENDIAN
u8 reserved1:4,
p_type:3,
prot_en:1;
u8 reserved2:4,
lb_pbe:4; /* logical blocks per physical block
* exponent */
u16 reserved3:2,
lba_align:14; /* lowest aligned logical block
* address */
#else
u16 lba_align:14, /* lowest aligned logical block
* address */
reserved3:2;
u8 lb_pbe:4, /* logical blocks per physical block
* exponent */
reserved2:4;
u8 prot_en:1,
p_type:3,
reserved1:4;
#endif
u64 reserved4;
u64 reserved5;
};
/* ------------------------------------------------------------
* REPORT LUNS command
* ------------------------------------------------------------
*/
struct scsi_report_luns_s{
u8 opcode; /* A0h - REPORT LUNS opCode */
u8 reserved1[5];
u8 alloc_length[4];/* allocation length MSB first */
u8 reserved2;
u8 control;
};
#define SCSI_REPORT_LUN_ALLOC_LENGTH(rl) \
((rl->alloc_length[0] << 24) | (rl->alloc_length[1] << 16) | \
(rl->alloc_length[2] << 8) | (rl->alloc_length[3]))
#define SCSI_REPORT_LUNS_SET_ALLOCLEN(rl, alloc_len) { \
(rl)->alloc_length[0] = (alloc_len) >> 24; \
(rl)->alloc_length[1] = ((alloc_len) >> 16) & 0xFF; \
(rl)->alloc_length[2] = ((alloc_len) >> 8) & 0xFF; \
(rl)->alloc_length[3] = (alloc_len) & 0xFF; \
}
struct scsi_report_luns_data_s{
u32 lun_list_length; /* length of LUN list length */
u32 reserved;
lun_t lun[1]; /* first LUN in lun list */
};
/* -------------------------------------------------------------
* SCSI mode parameters
* -----------------------------------------------------------
*/
enum {
SCSI_DA_MEDIUM_DEF = 0, /* direct access default medium type */
SCSI_DA_MEDIUM_SS = 1, /* direct access single sided */
SCSI_DA_MEDIUM_DS = 2, /* direct access double sided */
};
/*
* SCSI Mode Select(6) cdb
*/
struct scsi_mode_select6_s{
u8 opcode;
#ifdef __BIGENDIAN
u8 reserved1:3;
u8 pf:1; /* page format */
u8 reserved2:3;
u8 sp:1; /* save pages if set to 1 */
#else
u8 sp:1; /* save pages if set to 1 */
u8 reserved2:3;
u8 pf:1; /* page format */
u8 reserved1:3;
#endif
u8 reserved3[2];
u8 alloc_len;
u8 control;
};
/*
* SCSI Mode Select(10) cdb
*/
struct scsi_mode_select10_s{
u8 opcode;
#ifdef __BIGENDIAN
u8 reserved1:3;
u8 pf:1; /* page format */
u8 reserved2:3;
u8 sp:1; /* save pages if set to 1 */
#else
u8 sp:1; /* save pages if set to 1 */
u8 reserved2:3;
u8 pf:1; /* page format */
u8 reserved1:3;
#endif
u8 reserved3[5];
u8 alloc_len_msb;
u8 alloc_len_lsb;
u8 control;
};
/*
* SCSI Mode Sense(6) cdb
*/
struct scsi_mode_sense6_s{
u8 opcode;
#ifdef __BIGENDIAN
u8 reserved1:4;
u8 dbd:1; /* disable block discriptors if set to 1 */
u8 reserved2:3;
u8 pc:2; /* page control */
u8 page_code:6;
#else
u8 reserved2:3;
u8 dbd:1; /* disable block descriptors if set to 1 */
u8 reserved1:4;
u8 page_code:6;
u8 pc:2; /* page control */
#endif
u8 reserved3;
u8 alloc_len;
u8 control;
};
/*
* SCSI Mode Sense(10) cdb
*/
struct scsi_mode_sense10_s{
u8 opcode;
#ifdef __BIGENDIAN
u8 reserved1:3;
u8 LLBAA:1; /* long LBA accepted if set to 1 */
u8 dbd:1; /* disable block descriptors if set
* to 1
*/
u8 reserved2:3;
u8 pc:2; /* page control */
u8 page_code:6;
#else
u8 reserved2:3;
u8 dbd:1; /* disable block descriptors if set to
* 1
*/
u8 LLBAA:1; /* long LBA accepted if set to 1 */
u8 reserved1:3;
u8 page_code:6;
u8 pc:2; /* page control */
#endif
u8 reserved3[4];
u8 alloc_len_msb;
u8 alloc_len_lsb;
u8 control;
};
#define SCSI_CDB10_GET_AL(cdb) \
((cdb)->alloc_len_msb << 8 | (cdb)->alloc_len_lsb)
#define SCSI_CDB10_SET_AL(cdb, al) { \
(cdb)->alloc_len_msb = al >> 8; \
(cdb)->alloc_len_lsb = al & 0xFF; \
}
#define SCSI_CDB6_GET_AL(cdb) ((cdb)->alloc_len)
#define SCSI_CDB6_SET_AL(cdb, al) { \
(cdb)->alloc_len = al; \
}
/*
* page control field values
*/
#define SCSI_PC_CURRENT_VALUES 0x0
#define SCSI_PC_CHANGEABLE_VALUES 0x1
#define SCSI_PC_DEFAULT_VALUES 0x2
#define SCSI_PC_SAVED_VALUES 0x3
/*
* SCSI mode page codes
*/
#define SCSI_MP_VENDOR_SPEC 0x00
#define SCSI_MP_DISC_RECN 0x02 /* disconnect-reconnect page */
#define SCSI_MP_FORMAT_DEVICE 0x03
#define SCSI_MP_RDG 0x04 /* rigid disk geometry page */
#define SCSI_MP_FDP 0x05 /* flexible disk page */
#define SCSI_MP_CACHING 0x08 /* caching page */
#define SCSI_MP_CONTROL 0x0A /* control mode page */
#define SCSI_MP_MED_TYPES_SUP 0x0B /* medium types supported page */
#define SCSI_MP_INFO_EXCP_CNTL 0x1C /* informational exception control */
#define SCSI_MP_ALL 0x3F /* return all pages - mode sense only */
/*
* mode parameter header
*/
struct scsi_mode_param_header6_s{
u8 mode_datalen;
u8 medium_type;
/*
* device specific parameters expanded for direct access devices
*/
#ifdef __BIGENDIAN
u32 wp:1; /* write protected */
u32 reserved1:2;
u32 dpofua:1; /* disable page out + force unit access
*/
u32 reserved2:4;
#else
u32 reserved2:4;
u32 dpofua:1; /* disable page out + force unit access
*/
u32 reserved1:2;
u32 wp:1; /* write protected */
#endif
u8 block_desclen;
};
struct scsi_mode_param_header10_s{
u32 mode_datalen:16;
u32 medium_type:8;
/*
* device specific parameters expanded for direct access devices
*/
#ifdef __BIGENDIAN
u32 wp:1; /* write protected */
u32 reserved1:2;
u32 dpofua:1; /* disable page out + force unit access
*/
u32 reserved2:4;
#else
u32 reserved2:4;
u32 dpofua:1; /* disable page out + force unit access
*/
u32 reserved1:2;
u32 wp:1; /* write protected */
#endif
#ifdef __BIGENDIAN
u32 reserved3:7;
u32 longlba:1;
#else
u32 longlba:1;
u32 reserved3:7;
#endif
u32 reserved4:8;
u32 block_desclen:16;
};
/*
* mode parameter block descriptor
*/
struct scsi_mode_param_desc_s{
u32 nblks;
u32 density_code:8;
u32 block_length:24;
};
/*
* Disconnect-reconnect mode page format
*/
struct scsi_mp_disc_recn_s{
#ifdef __BIGENDIAN
u8 ps:1;
u8 reserved1:1;
u8 page_code:6;
#else
u8 page_code:6;
u8 reserved1:1;
u8 ps:1;
#endif
u8 page_len;
u8 buf_full_ratio;
u8 buf_empty_ratio;
u8 bil_msb; /* bus inactivity limit -MSB */
u8 bil_lsb; /* bus inactivity limit -LSB */
u8 dtl_msb; /* disconnect time limit - MSB */
u8 dtl_lsb; /* disconnect time limit - LSB */
u8 ctl_msb; /* connect time limit - MSB */
u8 ctl_lsb; /* connect time limit - LSB */
u8 max_burst_len_msb;
u8 max_burst_len_lsb;
#ifdef __BIGENDIAN
u8 emdp:1; /* enable modify data pointers */
u8 fa:3; /* fair arbitration */
u8 dimm:1; /* disconnect immediate */
u8 dtdc:3; /* data transfer disconnect control */
#else
u8 dtdc:3; /* data transfer disconnect control */
u8 dimm:1; /* disconnect immediate */
u8 fa:3; /* fair arbitration */
u8 emdp:1; /* enable modify data pointers */
#endif
u8 reserved3;
u8 first_burst_len_msb;
u8 first_burst_len_lsb;
};
/*
* SCSI format device mode page
*/
struct scsi_mp_format_device_s{
#ifdef __BIGENDIAN
u32 ps:1;
u32 reserved1:1;
u32 page_code:6;
#else
u32 page_code:6;
u32 reserved1:1;
u32 ps:1;
#endif
u32 page_len:8;
u32 tracks_per_zone:16;
u32 a_sec_per_zone:16;
u32 a_tracks_per_zone:16;
u32 a_tracks_per_lun:16; /* alternate tracks/lun-MSB */
u32 sec_per_track:16; /* sectors/track-MSB */
u32 bytes_per_sector:16;
u32 interleave:16;
u32 tsf:16; /* track skew factor-MSB */
u32 csf:16; /* cylinder skew factor-MSB */
#ifdef __BIGENDIAN
u32 ssec:1; /* soft sector formatting */
u32 hsec:1; /* hard sector formatting */
u32 rmb:1; /* removable media */
u32 surf:1; /* surface */
u32 reserved2:4;
#else
u32 reserved2:4;
u32 surf:1; /* surface */
u32 rmb:1; /* removable media */
u32 hsec:1; /* hard sector formatting */
u32 ssec:1; /* soft sector formatting */
#endif
u32 reserved3:24;
};
/*
* SCSI rigid disk device geometry page
*/
struct scsi_mp_rigid_device_geometry_s{
#ifdef __BIGENDIAN
u32 ps:1;
u32 reserved1:1;
u32 page_code:6;
#else
u32 page_code:6;
u32 reserved1:1;
u32 ps:1;
#endif
u32 page_len:8;
u32 num_cylinders0:8;
u32 num_cylinders1:8;
u32 num_cylinders2:8;
u32 num_heads:8;
u32 scwp0:8;
u32 scwp1:8;
u32 scwp2:8;
u32 scrwc0:8;
u32 scrwc1:8;
u32 scrwc2:8;
u32 dsr:16;
u32 lscyl0:8;
u32 lscyl1:8;
u32 lscyl2:8;
#ifdef __BIGENDIAN
u32 reserved2:6;
u32 rpl:2; /* rotational position locking */
#else
u32 rpl:2; /* rotational position locking */
u32 reserved2:6;
#endif
u32 rot_off:8;
u32 reserved3:8;
u32 med_rot_rate:16;
u32 reserved4:16;
};
/*
* SCSI caching mode page
*/
struct scsi_mp_caching_s{
#ifdef __BIGENDIAN
u8 ps:1;
u8 res1:1;
u8 page_code:6;
#else
u8 page_code:6;
u8 res1:1;
u8 ps:1;
#endif
u8 page_len;
#ifdef __BIGENDIAN
u8 ic:1; /* initiator control */
u8 abpf:1; /* abort pre-fetch */
u8 cap:1; /* caching analysis permitted */
u8 disc:1; /* discontinuity */
u8 size:1; /* size enable */
u8 wce:1; /* write cache enable */
u8 mf:1; /* multiplication factor */
u8 rcd:1; /* read cache disable */
u8 drrp:4; /* demand read retention priority */
u8 wrp:4; /* write retention priority */
#else
u8 rcd:1; /* read cache disable */
u8 mf:1; /* multiplication factor */
u8 wce:1; /* write cache enable */
u8 size:1; /* size enable */
u8 disc:1; /* discontinuity */
u8 cap:1; /* caching analysis permitted */
u8 abpf:1; /* abort pre-fetch */
u8 ic:1; /* initiator control */
u8 wrp:4; /* write retention priority */
u8 drrp:4; /* demand read retention priority */
#endif
u8 dptl[2];/* disable pre-fetch transfer length */
u8 min_prefetch[2];
u8 max_prefetch[2];
u8 max_prefetch_limit[2];
#ifdef __BIGENDIAN
u8 fsw:1; /* force sequential write */
u8 lbcss:1;/* logical block cache segment size */
u8 dra:1; /* disable read ahead */
u8 vs:2; /* vendor specific */
u8 res2:3;
#else
u8 res2:3;
u8 vs:2; /* vendor specific */
u8 dra:1; /* disable read ahead */
u8 lbcss:1;/* logical block cache segment size */
u8 fsw:1; /* force sequential write */
#endif
u8 num_cache_segs;
u8 cache_seg_size[2];
u8 res3;
u8 non_cache_seg_size[3];
};
/*
* SCSI control mode page
*/
struct scsi_mp_control_page_s{
#ifdef __BIGENDIAN
u8 ps:1;
u8 reserved1:1;
u8 page_code:6;
#else
u8 page_code:6;
u8 reserved1:1;
u8 ps:1;
#endif
u8 page_len;
#ifdef __BIGENDIAN
u8 tst:3; /* task set type */
u8 reserved3:3;
u8 gltsd:1; /* global logging target save disable */
u8 rlec:1; /* report log exception condition */
u8 qalgo_mod:4; /* queue alogorithm modifier */
u8 reserved4:1;
u8 qerr:2; /* queue error management */
u8 dque:1; /* disable queuing */
u8 reserved5:1;
u8 rac:1; /* report a check */
u8 reserved6:2;
u8 swp:1; /* software write protect */
u8 raerp:1; /* ready AER permission */
u8 uaaerp:1; /* unit attenstion AER permission */
u8 eaerp:1; /* error AER permission */
u8 reserved7:5;
u8 autoload_mod:3;
#else
u8 rlec:1; /* report log exception condition */
u8 gltsd:1; /* global logging target save disable */
u8 reserved3:3;
u8 tst:3; /* task set type */
u8 dque:1; /* disable queuing */
u8 qerr:2; /* queue error management */
u8 reserved4:1;
u8 qalgo_mod:4; /* queue alogorithm modifier */
u8 eaerp:1; /* error AER permission */
u8 uaaerp:1; /* unit attenstion AER permission */
u8 raerp:1; /* ready AER permission */
u8 swp:1; /* software write protect */
u8 reserved6:2;
u8 rac:1; /* report a check */
u8 reserved5:1;
u8 autoload_mod:3;
u8 reserved7:5;
#endif
u8 rahp_msb; /* ready AER holdoff period - MSB */
u8 rahp_lsb; /* ready AER holdoff period - LSB */
u8 busy_timeout_period_msb;
u8 busy_timeout_period_lsb;
u8 ext_selftest_compl_time_msb;
u8 ext_selftest_compl_time_lsb;
};
/*
* SCSI medium types supported mode page
*/
struct scsi_mp_medium_types_sup_s{
#ifdef __BIGENDIAN
u8 ps:1;
u8 reserved1:1;
u8 page_code:6;
#else
u8 page_code:6;
u8 reserved1:1;
u8 ps:1;
#endif
u8 page_len;
u8 reserved3[2];
u8 med_type1_sup; /* medium type one supported */
u8 med_type2_sup; /* medium type two supported */
u8 med_type3_sup; /* medium type three supported */
u8 med_type4_sup; /* medium type four supported */
};
/*
* SCSI informational exception control mode page
*/
struct scsi_mp_info_excpt_cntl_s{
#ifdef __BIGENDIAN
u8 ps:1;
u8 reserved1:1;
u8 page_code:6;
#else
u8 page_code:6;
u8 reserved1:1;
u8 ps:1;
#endif
u8 page_len;
#ifdef __BIGENDIAN
u8 perf:1; /* performance */
u8 reserved3:1;
u8 ebf:1; /* enable background fucntion */
u8 ewasc:1; /* enable warning */
u8 dexcpt:1; /* disable exception control */
u8 test:1; /* enable test device failure
* notification
*/
u8 reserved4:1;
u8 log_error:1;
u8 reserved5:4;
u8 mrie:4; /* method of reporting info
* exceptions
*/
#else
u8 log_error:1;
u8 reserved4:1;
u8 test:1; /* enable test device failure
* notification
*/
u8 dexcpt:1; /* disable exception control */
u8 ewasc:1; /* enable warning */
u8 ebf:1; /* enable background fucntion */
u8 reserved3:1;
u8 perf:1; /* performance */
u8 mrie:4; /* method of reporting info
* exceptions
*/
u8 reserved5:4;
#endif
u8 interval_timer_msb;
u8 interval_timer_lsb;
u8 report_count_msb;
u8 report_count_lsb;
};
/*
* Methods of reporting informational exceptions
*/
#define SCSI_MP_IEC_NO_REPORT 0x0 /* no reporting of exceptions */
#define SCSI_MP_IEC_AER 0x1 /* async event reporting */
#define SCSI_MP_IEC_UNIT_ATTN 0x2 /* generate unit attenstion */
#define SCSI_MO_IEC_COND_REC_ERR 0x3 /* conditionally generate recovered
* error
*/
#define SCSI_MP_IEC_UNCOND_REC_ERR 0x4 /* unconditionally generate recovered
* error
*/
#define SCSI_MP_IEC_NO_SENSE 0x5 /* generate no sense */
#define SCSI_MP_IEC_ON_REQUEST 0x6 /* only report exceptions on request */
/*
* SCSI flexible disk page
*/
struct scsi_mp_flexible_disk_s{
#ifdef __BIGENDIAN
u8 ps:1;
u8 reserved1:1;
u8 page_code:6;
#else
u8 page_code:6;
u8 reserved1:1;
u8 ps:1;
#endif
u8 page_len;
u8 transfer_rate_msb;
u8 transfer_rate_lsb;
u8 num_heads;
u8 num_sectors;
u8 bytes_per_sector_msb;
u8 bytes_per_sector_lsb;
u8 num_cylinders_msb;
u8 num_cylinders_lsb;
u8 sc_wpc_msb; /* starting cylinder-write
* precompensation msb
*/
u8 sc_wpc_lsb; /* starting cylinder-write
* precompensation lsb
*/
u8 sc_rwc_msb; /* starting cylinder-reduced write
* current msb
*/
u8 sc_rwc_lsb; /* starting cylinder-reduced write
* current lsb
*/
u8 dev_step_rate_msb;
u8 dev_step_rate_lsb;
u8 dev_step_pulse_width;
u8 head_sd_msb; /* head settle delay msb */
u8 head_sd_lsb; /* head settle delay lsb */
u8 motor_on_delay;
u8 motor_off_delay;
#ifdef __BIGENDIAN
u8 trdy:1; /* true ready bit */
u8 ssn:1; /* start sector number bit */
u8 mo:1; /* motor on bit */
u8 reserved3:5;
u8 reserved4:4;
u8 spc:4; /* step pulse per cylinder */
#else
u8 reserved3:5;
u8 mo:1; /* motor on bit */
u8 ssn:1; /* start sector number bit */
u8 trdy:1; /* true ready bit */
u8 spc:4; /* step pulse per cylinder */
u8 reserved4:4;
#endif
u8 write_comp;
u8 head_load_delay;
u8 head_unload_delay;
#ifdef __BIGENDIAN
u8 pin34:4; /* pin34 usage */
u8 pin2:4; /* pin2 usage */
u8 pin4:4; /* pin4 usage */
u8 pin1:4; /* pin1 usage */
#else
u8 pin2:4; /* pin2 usage */
u8 pin34:4; /* pin34 usage */
u8 pin1:4; /* pin1 usage */
u8 pin4:4; /* pin4 usage */
#endif
u8 med_rot_rate_msb;
u8 med_rot_rate_lsb;
u8 reserved5[2];
};
struct scsi_mode_page_format_data6_s{
struct scsi_mode_param_header6_s mph; /* mode page header */
struct scsi_mode_param_desc_s desc; /* block descriptor */
struct scsi_mp_format_device_s format; /* format device data */
};
struct scsi_mode_page_format_data10_s{
struct scsi_mode_param_header10_s mph; /* mode page header */
struct scsi_mode_param_desc_s desc; /* block descriptor */
struct scsi_mp_format_device_s format; /* format device data */
};
struct scsi_mode_page_rdg_data6_s{
struct scsi_mode_param_header6_s mph; /* mode page header */
struct scsi_mode_param_desc_s desc; /* block descriptor */
struct scsi_mp_rigid_device_geometry_s rdg;
/* rigid geometry data */
};
struct scsi_mode_page_rdg_data10_s{
struct scsi_mode_param_header10_s mph; /* mode page header */
struct scsi_mode_param_desc_s desc; /* block descriptor */
struct scsi_mp_rigid_device_geometry_s rdg;
/* rigid geometry data */
};
struct scsi_mode_page_cache6_s{
struct scsi_mode_param_header6_s mph; /* mode page header */
struct scsi_mode_param_desc_s desc; /* block descriptor */
struct scsi_mp_caching_s cache; /* cache page data */
};
struct scsi_mode_page_cache10_s{
struct scsi_mode_param_header10_s mph; /* mode page header */
struct scsi_mode_param_desc_s desc; /* block descriptor */
struct scsi_mp_caching_s cache; /* cache page data */
};
/* --------------------------------------------------------------
* Format Unit command
* ------------------------------------------------------------
*/
/*
* Format Unit CDB
*/
struct scsi_format_unit_s{
u8 opcode;
#ifdef __BIGENDIAN
u8 res1:3;
u8 fmtdata:1; /* if set, data out phase has format
* data
*/
u8 cmplst:1; /* if set, defect list is complete */
u8 def_list:3; /* format of defect descriptor is
* fmtdata =1
*/
#else
u8 def_list:3; /* format of defect descriptor is
* fmtdata = 1
*/
u8 cmplst:1; /* if set, defect list is complete */
u8 fmtdata:1; /* if set, data out phase has format
* data
*/
u8 res1:3;
#endif
u8 interleave_msb;
u8 interleave_lsb;
u8 vendor_spec;
u8 control;
};
/*
* h
*/
struct scsi_reserve6_s{
u8 opcode;
#ifdef __BIGENDIAN
u8 reserved:3;
u8 obsolete:4;
u8 extent:1;
#else
u8 extent:1;
u8 obsolete:4;
u8 reserved:3;
#endif
u8 reservation_id;
u16 param_list_len;
u8 control;
};
/*
* h
*/
struct scsi_release6_s{
u8 opcode;
#ifdef __BIGENDIAN
u8 reserved1:3;
u8 obsolete:4;
u8 extent:1;
#else
u8 extent:1;
u8 obsolete:4;
u8 reserved1:3;
#endif
u8 reservation_id;
u16 reserved2;
u8 control;
};
/*
* h
*/
struct scsi_reserve10_s{
u8 opcode;
#ifdef __BIGENDIAN
u8 reserved1:3;
u8 third_party:1;
u8 reserved2:2;
u8 long_id:1;
u8 extent:1;
#else
u8 extent:1;
u8 long_id:1;
u8 reserved2:2;
u8 third_party:1;
u8 reserved1:3;
#endif
u8 reservation_id;
u8 third_pty_dev_id;
u8 reserved3;
u8 reserved4;
u8 reserved5;
u16 param_list_len;
u8 control;
};
struct scsi_release10_s{
u8 opcode;
#ifdef __BIGENDIAN
u8 reserved1:3;
u8 third_party:1;
u8 reserved2:2;
u8 long_id:1;
u8 extent:1;
#else
u8 extent:1;
u8 long_id:1;
u8 reserved2:2;
u8 third_party:1;
u8 reserved1:3;
#endif
u8 reservation_id;
u8 third_pty_dev_id;
u8 reserved3;
u8 reserved4;
u8 reserved5;
u16 param_list_len;
u8 control;
};
struct scsi_verify10_s{
u8 opcode;
#ifdef __BIGENDIAN
u8 lun:3;
u8 dpo:1;
u8 reserved:2;
u8 bytchk:1;
u8 reladdr:1;
#else
u8 reladdr:1;
u8 bytchk:1;
u8 reserved:2;
u8 dpo:1;
u8 lun:3;
#endif
u8 lba0;
u8 lba1;
u8 lba2;
u8 lba3;
u8 reserved1;
u8 verification_len0;
u8 verification_len1;
u8 control_byte;
};
struct scsi_request_sense_s{
u8 opcode;
#ifdef __BIGENDIAN
u8 lun:3;
u8 reserved:5;
#else
u8 reserved:5;
u8 lun:3;
#endif
u8 reserved0;
u8 reserved1;
u8 alloc_len;
u8 control_byte;
};
/* ------------------------------------------------------------
* SCSI status byte values
* ------------------------------------------------------------
*/
#define SCSI_STATUS_GOOD 0x00
#define SCSI_STATUS_CHECK_CONDITION 0x02
#define SCSI_STATUS_CONDITION_MET 0x04
#define SCSI_STATUS_BUSY 0x08
#define SCSI_STATUS_INTERMEDIATE 0x10
#define SCSI_STATUS_ICM 0x14 /* intermediate condition met */
#define SCSI_STATUS_RESERVATION_CONFLICT 0x18
#define SCSI_STATUS_COMMAND_TERMINATED 0x22
#define SCSI_STATUS_QUEUE_FULL 0x28
#define SCSI_STATUS_ACA_ACTIVE 0x30
#define SCSI_MAX_ALLOC_LEN 0xFF /* maximum allocarion length
* in CDBs
*/
#define SCSI_OP_WRITE_VERIFY10 0x2E
#define SCSI_OP_WRITE_VERIFY12 0xAE
#define SCSI_OP_UNDEF 0xFF
/*
* SCSI WRITE-VERIFY(10) command
*/
struct scsi_write_verify10_s{
u8 opcode;
#ifdef __BIGENDIAN
u8 reserved1:3;
u8 dpo:1; /* Disable Page Out */
u8 reserved2:1;
u8 ebp:1; /* erse by-pass */
u8 bytchk:1; /* byte check */
u8 rel_adr:1; /* relative address */
#else
u8 rel_adr:1; /* relative address */
u8 bytchk:1; /* byte check */
u8 ebp:1; /* erse by-pass */
u8 reserved2:1;
u8 dpo:1; /* Disable Page Out */
u8 reserved1:3;
#endif
u8 lba0; /* logical block address - MSB */
u8 lba1;
u8 lba2;
u8 lba3; /* LSB */
u8 reserved3;
u8 xfer_length0; /* transfer length in blocks - MSB */
u8 xfer_length1; /* LSB */
u8 control;
};
#pragma pack()
#endif /* __SCSI_H__ */
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