386 lines
15 KiB
C
386 lines
15 KiB
C
/*
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* Copyright (c) 1992 The Regents of the University of California.
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* All rights reserved.
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*
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* This software was developed by the Computer Systems Engineering group
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* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
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* contributed to Berkeley.
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*
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* All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Lawrence Berkeley Laboratories.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* %W% (Berkeley) %G%
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*
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* from: Header: disk.h,v 1.4 93/04/30 00:04:10 torek Exp (LBL)
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* $Id: disk.h,v 1.1 1993/10/27 17:48:31 deraadt Exp $
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*/
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/*
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* SCSI definitions for Direct Access Devices (disks).
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* This includes WORMs and CD-ROMs (although a few commands, such as
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* format or write, are nonsensical on some).
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*
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* Commands defined in common headers (scsi.h or disktape.h) appear here
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* as comments.
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*/
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/* group 0 */
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/* CMD_TEST_UNIT_READY 0x00 test unit ready */
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#define CMD_REZERO 0x01 /* rezero unit */
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/* CMD_REQUEST_SENSE 0x03 request sense */
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#define CMD_FORMAT_UNIT 0x04 /* format unit (disk) */
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#define CMD_REASSIGN_BLOCKS 0x07 /* reassign blocks (disk, WORM) */
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#define CMD_READ6 0x08 /* read (6 byte cdb) */
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#define CMD_WRITE6 0x0a /* write (6 byte cdb) */
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#define CMD_SEEK6 0x0b /* seek (6 byte cdb) */
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/* CMD_INQUIRY 0x12 inquiry */
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/* CMD_MODE_SELECT 0x15 mode select */
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#define CMD_RESERVE 0x16 /* reserve */
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#define CMD_RELEASE 0x17 /* release */
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/* CMD_COPY 0x18 copy */
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/* CMD_MODE_SENSE 0x1a mode sense */
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#define CMD_SSU 0x1b /* start/stop unit */
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/* CMD_RECEIVE_DIAG 0x1c receive diagnostic results */
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/* CMD_SEND_DIAG 0x1d send diagnostic */
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#define CMD_PAMR 0x1e /* prevent/allow medium removal */
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/* group 1 */
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#define CMD_READ_CAPACITY 0x25 /* read capacity */
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#define CMD_READ10 0x28 /* read (10 byte cdb) */
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#define CMD_WRITE10 0x2a /* write (10 byte cdb) */
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#define CMD_SEEK10 0x2b /* write (10 byte cdb) */
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#define CMD_WRITE_VERIFY 0x2e /* write and verify */
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#define CMD_VERIFY 0x2f /* verify */
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#define CMD_SEARCH_H 0x30 /* search data high */
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#define CMD_SEARCH_E 0x31 /* search data equal */
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#define CMD_SEARCH_L 0x32 /* search data low */
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#define CMD_SET_LIMITS 0x33 /* set limits */
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/* CMD_COMPARE 0x39 compare */
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#define CMD_COPY_VERIFY 0x3a /* copy and verify */
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/* this one is in van's but not in my 17B documents */
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#define CMD_READ_DEFECT_DATA 0x37 /* read defect data */ /* ??? */
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/*
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* Structure of a FORMAT UNIT command (i.e., the cdb):
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* byte 0: opcode<8>
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* byte 1: lun<3> format_data<1> complete_list<1> defect_list_format<3>
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* byte 2: vendor unique
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* byte 3: interleave (MSB)
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* byte 4: interleave (LSB)
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* byte 5: control
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*/
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struct scsi_cdb_fu {
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u_char cdb_cmd; /* SCSI_CMD_FU */
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u_char cdb_lun_etc; /* lun+FD+CL+DLF */
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u_char cdb_vu; /* vendor unique */
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u_char cdb_ilvh; /* interleave (MSB) */
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u_char cdb_ilvl; /* interleave (LSB) */
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u_char cdb_ctrl; /* control byte */
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};
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/*
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* If format data are supplied, they give either additional (cl=0) or
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* new (cl=1) defect list in one of the following formats.
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* Formats 1, 2, and 3 are the same as 0; formats 6 and 7 are
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* vendor unique and reserved, respectively. (The `backwards'
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* in `backwards compatible'...)
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*/
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#define SCSI_DLF_BLOCK 0 /* dlf = blocks */
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#define SCSI_DLF_BFI 4 /* dlf = bytes from index */
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#define SCSI_DLF_PS 5 /* dlf = physical sectors */
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/*
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* Defect list header, block format (`defect block address').
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*
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* N.B.: this structure is also used for the Reassign Blocks command;
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* there the `defect block address' becomes a `defect logical block address'.
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*/
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struct scsi_dlf_dba {
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u_short dlf_xxx; /* reserved */
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u_char dlf_lenh, /* defect list length (MSB) */
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dlf_lenl; /* defect list length (LSB) */
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struct scsi_dlf_dba_desc {
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u_char dbah, /* defect block address (MSB) */
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dbahm, /* defect block address */
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dbalm, /* defect block address */
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dbal; /* defect block address (LSB) */
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} dlf_dba[1]; /* actually longer */
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};
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/*
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* Defect list header, Bytes From Index format.
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*/
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struct scsi_dlf_bfi {
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u_short dlf_xxx; /* reserved */
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u_char dlf_lenh, /* defect list length (MSB) */
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dlf_lenl; /* defect list length (LSB) */
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struct scsi_dlf_bfi_desc {
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u_char cylh, /* cylinder number of defect (MSB) */
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cylm, /* cylinder number of defect */
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cyll, /* cylinder number of defect (LSB) */
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head, /* head number of defect */
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bfih, /* defect bytes from index (MSB) */
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bfihm, /* defect bytes from index */
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bfilm, /* defect bytes from index */
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bfil; /* defect bytes from index (LSB) */
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} dlf_bfi[1]; /* actually longer */
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};
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/*
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* Defect list header, Physical Sector format.
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*/
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struct scsi_dlf_ps {
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u_short dlf_xxx; /* reserved */
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u_char dlf_lenh, /* defect list length (MSB) */
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dlf_lenl; /* defect list length (LSB) */
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struct scsi_dlf_ps_desc {
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u_char cylh, /* cylinder number of defect (MSB) */
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cylm, /* cylinder number of defect */
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cyll, /* cylinder number of defect (LSB) */
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head, /* head number of defect */
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dsnh, /* defect sector number (MSB) */
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dsnhm, /* defect sector number */
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dsnlm, /* defect sector number */
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dsnl; /* defect sector number (LSB) */
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} dlf_ps[1]; /* actually longer */
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};
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/*
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* For MODE SENSE and MODE SELECT: Mode page codes for disks.
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*/
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/* 0x00 vendor specific */
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#define SCSI_MS_PC_RWERRREC 0x01 /* r/w error recovery parameters */
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/* SCSI_MS_PC_DR 0x02 disconnect/reconnect control */
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#define SCSI_MS_PC_FMT 0x03 /* format parameters */
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#define SCSI_MS_PC_RDGEOM 0x04 /* Rigid Disk geometry */
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#define SCSI_MS_PC_FD 0x05 /* flexible disk page */
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/* 0x06 reserved */
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#define SCSI_MS_PC_VERRREC 0x07 /* verify error recovery page */
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#define SCSI_MS_PC_CACHE 0x08 /* cache page */
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/* SCSI_MS_PC_PDEV 0x09 peripheral device page */
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/* SCSI_MS_PC_CTLMODE 0x0a control mode page */
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#define SCSI_MS_PC_MTSUPP 0x0b /* medium types supported */
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#define SCSI_MS_PC_NOTCH 0x0c /* notch page */
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/* 0x0d..0x1f reserved */
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/* 0x20..0x3e vendor specific */
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#define SCSI_MS_PC_CDCCACHECTL 0x38 /* CDC (Wren) cache control page */
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/*
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* Structure of a Read/Write Error Recovery mode page.
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* N.B.: CDC Wren V, at least, does not include write retry & time limit.
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*/
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struct scsi_page_rwerrrec {
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u_char rw_flags, /* flags, see below */
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rw_read_retry, /* read retry count */
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rw_corr_span, /* correction span */
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rw_hd_off, /* head offset count */
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rw_ds_off, /* data strobe offset count */
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rw_xxx0, /* reserved */
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rw_write_retry, /* write retry count */
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rw_xxx1, /* reserved */
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rw_rtlh, /* recovery time limit (MSB) */
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rw_rtll; /* recovery time limit (LSB) */
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};
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/* rw_flags */
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#define SCSI_RWE_AWRE 0x80 /* reallocate defective blocks on write */
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#define SCSI_RWE_ARRE 0x40 /* reallocate defective blocks on read */
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#define SCSI_RWE_TB 0x20 /* transfer unrecoverable block */
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#define SCSI_RWE_RC 0x10 /* recovery may not cause delay: may lie */
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#define SCSI_RWE_EER 0x08 /* use most expedient recovery, not best */
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#define SCSI_RWE_PER 0x04 /* report recovered errors */
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#define SCSI_RWE_DTE 0x02 /* stop after recovered error */
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#define SCSI_RWE_DCR 0x01 /* use ECC for detection only */
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/*
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* Structure of a Format Device mode page.
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*/
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struct scsi_page_fmt {
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u_char fmt_tpzh, /* tracks per zone (MSB) */
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fmt_tpzl, /* tracks per zone (LSB) */
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fmt_aspzh, /* alternate sectors per zone (MSB) */
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fmt_aspzl, /* alternate sectors per zone (LSB) */
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fmt_atpzh, /* alternate tracks per zone (MSB) */
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fmt_atpzl, /* alternate tracks per zone (LSB) */
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fmt_atpvh, /* alternate tracks per volume (MSB) */
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fmt_atpvl, /* alternate tracks per volume (LSB) */
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fmt_spth, /* sectors per track (MSB) */
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fmt_sptl, /* sectors per track (LSB) */
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fmt_dbppsh, /* data bytes per physical sector (MSB) */
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fmt_dbppsl, /* data bytes per physical sector (LSB) */
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fmt_ilh, /* interleave (MSB) */
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fmt_ill, /* interleave (LSB) */
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fmt_tsfh, /* track skew factor (MSB) */
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fmt_tsfl, /* track skew factor (LSB) */
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fmt_csfh, /* cylinder skew factor (MSB) */
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fmt_csfl, /* cylinder skew factor (LSB) */
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fmt_flags, /* flags, see below */
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fmt_xxx[3]; /* reserved */
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};
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/* fmt_flags. Note, HSEC|SSEC meaning varies all over the map! */
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#define SCSI_FMT_HSEC 0x80 /* hard sector */
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#define SCSI_FMT_SSEC 0x40 /* soft sector */
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#define SCSI_FMT_RMB 0x20 /* removable media */
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#define SCSI_FMT_SURF 0x10 /* format by surface (vs. by cylinder) */
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/* 0x0f reserved */
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/*
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* Structure of a Rigid Disk Geometry mode page.
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* N.B.: CDC Wren V, at least, does not include rpm.
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*/
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struct scsi_page_rdgeom {
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u_char rd_ncylh, /* number of cylinders (MSB) */
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rd_ncylm, /* number of cylinders */
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rd_ncyll, /* number of cylinders (LSB) */
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rd_nheads, /* number of heads */
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rd_wpcylh, /* start cyl for write precomp. (MSB) */
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rd_wpcylm, /* start cyl for write precomp. */
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rd_wpcyll, /* start cyl for write precomp. (LSB) */
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rd_rwcylh, /* start cyl for reduced write current (MSB) */
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rd_rwcylm, /* start cyl for reduced write current */
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rd_rwcyll, /* start cyl for reduced write current (LSB) */
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rd_steph, /* drive step rate (.1 us units) (MSB) */
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rd_stepl, /* drive step rate (LSB) */
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rd_lcylh, /* landing zone cylinder (MSB) */
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rd_lcylm, /* landing zone cylinder */
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rd_lcyll, /* landing zone cylinder (LSB) */
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rd_rpl, /* spindle synch control, see below */
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rd_roff, /* rotational offset (for rpl) */
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rd_xxx1, /* reserved */
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rd_rpmh, /* medium rotation rate (rpm) (MSB) */
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rd_rpml, /* medium rotation rate (rpm) (LSB) */
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rd_xxx2[2]; /* reserved */
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};
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/* values for rd_rpl. */
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#define SCSI_RD_RPL_MASK 0x03 /* mask for RPL field */
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#define SCSI_RD_RPL_NONE 0x00 /* sync disabled or not supported */
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#define SCSI_RD_RPL_SLAVE 0x01 /* disk is a Slave */
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#define SCSI_RD_RPL_MASTER 0x02 /* disk is a Master */
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#define SCSI_RD_RPL_MCONTROL 0x03 /* disk is a Master Control */
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/*
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* Structure of a Verify Error Recovery mode page.
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*/
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struct scsi_page_verrrec {
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u_char v_flags, /* flags, see below */
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v_verify_retry, /* verify retry count */
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v_corr_span, /* verify correction span */
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v_xxx[5], /* reserved */
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v_rtlh, /* verify recovery time limit (MSB) */
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v_rtll; /* verify recovery time limit (LSB) */
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};
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#define SCSI_V_EER 0x08 /* use most expedient recovery, not best */
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#define SCSI_V_PER 0x04 /* report recovered errors */
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#define SCSI_V_DTE 0x02 /* stop after recovered error */
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#define SCSI_V_DCR 0x01 /* use ECC for detection only */
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/*
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* Structure of a Caching mode page.
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*/
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struct scsi_page_cache {
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u_char cache_flags, /* flags, see below */
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cache_reten, /* cache retention priorities (rd + wr) */
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cache_dptlh, /* disable prefetch transfer length (MSB) */
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cache_dptll, /* disable prefetch transfer length (LSB) */
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cache_minpfh, /* minimum prefetch (MSB) */
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cache_minpfl, /* minimum prefetch (LSB) */
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cache_maxpfh, /* maximum prefetch (MSB) */
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cache_maxpfl, /* maximum prefetch (LSB) */
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cache_mpch, /* maximum prefetch ceiling (MSB) */
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cache_mpcl; /* maximum prefetch ceiling (LSB) */
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};
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#define SCSI_CACHE_WCE 0x04 /* write cache enable */
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#define SCSI_CACHE_MF 0x02 /* if set, prefetch depends on xfer length */
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#define SCSI_CACHE_RCD 0x01 /* read cache disable */
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#define SCSI_CACHE_RDPOLICY(x) ((x) >> 4)
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#define SCSI_CACHE_WRPOLICY(x) ((x) & 0xf)
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#define SCSI_CACHE_DEFAULT 0 /* use target default */
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#define SCSI_CACHE_KEEPPF 1 /* keep prefetch data over cmd data */
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#define SCSI_CACHE_KEEPCMD 15 /* keep cmd data over prefetch data */
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/*
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* Structure of a Control Mode mode page.
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*/
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struct scsi_page_ctlmode {
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u_char cm_rlec, /* report log-activity exception condition */
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cm_qctl, /* queue control (below) */
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cm_ecaaen, /* ECA and AEN flags (below) */
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cm_xxx, /* reserved */
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cm_aenholdh, /* AEN holdoff period (ms) (MSB) */
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cm_aenholdl; /* AEN holdoff period (ms) (LSB) */
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};
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#define SCSI_CM_RLEC 0x01 /* RLEC flag occupies only low bit */
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#define SCSI_CM_QMOD(x) ((x) >> 4) /* queue algorithm modifier */
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#define SCSI_CM_QERR 0x02 /* abort cmd queue after error */
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#define SCSI_CM_DQUE 0x01 /* disable tagged queueing */
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#define SCSI_CM_ECA 0x80 /* enable Extended Contingent Alliance */
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#define SCSI_CM_RAENP 0x04 /* target may do Async Err Notif after init */
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#define SCSI_CM_UAAENP 0x02 /* target may do AEN for Unit Attention */
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#define SCSI_CM_EAENP 0x01 /* target may do AEN for deferred errors */
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/*
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* Structure of a CDC-specific Cache Control mode page.
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*/
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struct scsi_page_CDCcachectlmode {
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u_char ccm_flags, /* flags (below) */
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ccm_pfthresh, /* prefetch threshold */
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ccm_maxthresh, /* maximum threshold (?) */
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ccm_maxpfmult, /* maximum prefetch multiplier */
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ccm_minthresh, /* minimum thresold (?) */
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ccm_minpfmult, /* minimum prefetch multiplier */
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ccm_xxx[8]; /* reserved */
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};
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#define SCSI_CDC_CCM_WIE 0x40 /* write index enable */
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#define SCSI_CDC_CCM_CE 0x10 /* cache enable */
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#define SCSI_CDC_CCM_TBLSZ(x) ((x) & 0xf) /* table size */
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/*
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* Bits in cdb_lenl for a READ CAPACITY command,
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* and structure returned as data.
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*
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* If PMI is off, the lba in the cdb must be 0.
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*/
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#define SCSI_CMD_RC_PMI 0x01 /* Partial Medium Indicator */
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struct scsi_rc {
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u_char rc_lbah; /* logical block address (MSB) */
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u_char rc_lbahm; /* logical block address */
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u_char rc_lbalm; /* logical block address */
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u_char rc_lbal; /* logical block address (LSB) */
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u_char rc_blh; /* block length (MSB) */
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u_char rc_blhm; /* block length */
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u_char rc_bllm; /* block length */
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u_char rc_bll; /* block length (LSB) */
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};
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