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src/sys/scsi/scsi_disk.h

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/* $OpenBSD: scsi_disk.h,v 1.43 2022/01/11 23:10:11 jsg Exp $ */
/* $NetBSD: scsi_disk.h,v 1.10 1996/07/05 16:19:05 christos Exp $ */
/*
* SCSI interface description
*/
/*
* Some lines of this file come from a file of the name "scsi.h"
* distributed by OSF as part of mach2.5,
* so the following disclaimer has been kept.
*
* Copyright 1990 by Open Software Foundation,
* Grenoble, FRANCE
*
* All Rights Reserved
*
* Permission to use, copy, modify, and distribute this software and
* its documentation for any purpose and without fee is hereby granted,
* provided that the above copyright notice appears in all copies and
* that both the copyright notice and this permission notice appear in
* supporting documentation, and that the name of OSF or Open Software
* Foundation not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission.
*
* OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS,
* IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
* NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
* Largely written by Julian Elischer (julian@tfs.com)
* for TRW Financial Systems.
*
* TRW Financial Systems, in accordance with their agreement with Carnegie
* Mellon University, makes this software available to CMU to distribute
* or use in any manner that they see fit as long as this message is kept with
* the software. For this reason TFS also grants any other persons or
* organisations permission to use or modify this software.
*
* TFS supplies this software to be publicly redistributed
* on the understanding that TFS is not responsible for the correct
* functioning of this software in any circumstances.
*
* Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992
*/
/*
* SCSI command format
*/
#ifndef _SCSI_SCSI_DISK_H
#define _SCSI_SCSI_DISK_H
/*
* XXX Is this also used by ATAPI?
*/
#define FORMAT_UNIT 0x04
struct scsi_format_unit {
u_int8_t opcode;
u_int8_t flags;
#define SFU_DLF_MASK 0x07
#define SFU_CMPLST 0x08
#define SFU_FMTDATA 0x10
u_int8_t vendor_specific;
u_int8_t interleave[2];
u_int8_t control;
};
/*
* If the FmtData bit is set, a FORMAT UNIT parameter list is transferred
* to the target during the DATA OUT phase. The parameter list includes
*
* Defect list header
* Initialization pattern descriptor (if any)
* Defect descriptor(s) (if any)
*/
struct scsi_format_unit_defect_list_header {
u_int8_t reserved;
u_int8_t flags;
#define DLH_VS 0x01 /* vendor specific */
#define DLH_IMMED 0x02 /* immediate return */
#define DLH_DSP 0x04 /* disable saving parameters */
#define DLH_IP 0x08 /* initialization pattern */
#define DLH_STPF 0x10 /* stop format */
#define DLH_DCRT 0x20 /* disable certification */
#define DLH_DPRY 0x40 /* disable primary */
#define DLH_FOV 0x80 /* format options valid */
u_int8_t defect_lst_len[2];
};
/*
* See Table 117 of the SCSI-2 specification for a description of
* the IP modifier.
*/
struct scsi_initialization_pattern_descriptor {
u_int8_t ip_modifier;
u_int8_t pattern_type;
#define IP_TYPE_DEFAULT 0x01
#define IP_TYPE_REPEAT 0x01
/* 0x02 -> 0x7f: reserved */
/* 0x80 -> 0xff: vendor-specific */
u_int8_t pattern_length[2];
#if 0
u_int8_t pattern[...];
#endif /* 0 */
};
/*
* Defect descriptors. These are used as the defect lists in the FORMAT UNIT
* and READ DEFECT DATA commands, and as the translate page of the
* SEND DIAGNOSTIC and RECEIVE DIAGNOSTIC RESULTS commands.
*/
/* Block format */
struct scsi_defect_descriptor_bf {
u_int8_t block_address[4];
};
/* Bytes from index format */
struct scsi_defect_descriptor_bfif {
u_int8_t cylinder[2];
u_int8_t head;
u_int8_t bytes_from_index[2];
};
/* Physical sector format */
struct scsi_defect_descriptor_psf {
u_int8_t cylinder[2];
u_int8_t head;
u_int8_t sector[2];
};
struct scsi_reassign_blocks {
u_int8_t opcode;
u_int8_t byte2;
u_int8_t unused[3];
u_int8_t control;
};
/*
* XXX Is this also used by ATAPI?
*/
#define REZERO_UNIT 0x01
struct scsi_rezero_unit {
u_int8_t opcode;
u_int8_t byte2;
u_int8_t reserved[3];
u_int8_t control;
};
struct scsi_rw {
u_int8_t opcode;
u_int8_t addr[3];
#define SRW_TOPADDR 0x1F /* only 5 bits here */
u_int8_t length;
u_int8_t control;
};
struct scsi_rw_10 {
u_int8_t opcode;
u_int8_t byte2;
#define SRWB_RELADDR 0x01
u_int8_t addr[4];
u_int8_t reserved;
u_int8_t length[2];
u_int8_t control;
};
struct scsi_rw_12 {
u_int8_t opcode;
u_int8_t byte2;
u_int8_t addr[4];
u_int8_t length[4];
u_int8_t reserved;
u_int8_t control;
};
struct scsi_rw_16 {
u_int8_t opcode;
u_int8_t byte2;
u_int8_t addr[8];
u_int8_t length[4];
u_int8_t reserved;
u_int8_t control;
};
struct scsi_write_same_10 {
u_int8_t opcode;
u_int8_t flags;
#define WRITE_SAME_F_LBDATA (1 << 1)
#define WRITE_SAME_F_PBDATA (1 << 2)
u_int8_t lba[4];
u_int8_t group_number;
u_int8_t length[2];
u_int8_t control;
};
struct scsi_write_same_16 {
u_int8_t opcode;
u_int8_t flags;
/* includes WRITE SAME 10 flags */
#define WRITE_SAME_F_UNMAP (1 << 3)
#define WRITE_SAME_F_ANCHOR (1 << 4)
u_int8_t lba[8];
u_int8_t length[4];
u_int8_t group_number;
u_int8_t control;
};
struct scsi_unmap {
u_int8_t opcode;
u_int8_t anchor;
u_int8_t _reserved[4];
u_int8_t group_number;
u_int8_t list_len[2];
u_int8_t control;
};
struct scsi_unmap_data {
u_int8_t data_length[2];
u_int8_t desc_length[2];
u_int8_t _reserved[4];
/* followed by struct scsi_unmap_desc */
};
struct scsi_unmap_desc {
u_int8_t logical_addr[8];
u_int8_t logical_blocks[4];
u_int8_t _reserved[4];
};
struct scsi_read_capacity {
u_int8_t opcode;
u_int8_t byte2;
u_int8_t addr[4];
u_int8_t unused[3];
u_int8_t control;
};
struct scsi_read_capacity_16 {
u_int8_t opcode;
u_int8_t byte2;
#define SRC16_SERVICE_ACTION 0x10
u_int8_t addr[8];
u_int8_t length[4];
u_int8_t reserved;
u_int8_t control;
};
struct scsi_start_stop {
u_int8_t opcode;
u_int8_t byte2;
u_int8_t unused[2];
u_int8_t how;
#define SSS_STOP 0x00
#define SSS_START 0x01
#define SSS_LOEJ 0x02
u_int8_t control;
};
/*
* XXX Does ATAPI have an equivalent?
*/
struct scsi_synchronize_cache {
u_int8_t opcode;
u_int8_t flags;
#define SSC_RELADR 0x01
#define SSC_IMMED 0x02
u_int8_t addr[4];
u_int8_t reserved;
u_int8_t length[2];
u_int8_t control;
};
/*
* Disk specific opcodes
*/
#define REASSIGN_BLOCKS 0x07
#define READ_COMMAND 0x08
#define WRITE_COMMAND 0x0a
#define READ_CAPACITY 0x25
#define READ_CAPACITY_16 0x9e
#define READ_10 0x28
#define WRITE_10 0x2a
#define READ_12 0xa8
#define WRITE_12 0xaa
#define READ_16 0x88
#define WRITE_16 0x8a
#define SYNCHRONIZE_CACHE 0x35
#define WRITE_SAME_10 0x41
#define WRITE_SAME_16 0x93
#define UNMAP 0x42
struct scsi_reassign_blocks_data {
u_int8_t reserved[2];
u_int8_t length[2];
struct {
u_int8_t dlbaddr[4];
} defect_descriptor[1];
};
/* Only the lower 6 bits of the pg_code field are used for page #. */
#define PAGE_DISK_FORMAT 3
#define PAGE_RIGID_GEOMETRY 4
#define PAGE_FLEX_GEOMETRY 5
#define PAGE_REDUCED_GEOMETRY 6
#define PAGE_CACHING_MODE 8
struct page_disk_format {
u_int8_t pg_code; /* page code (should be 3) */
u_int8_t pg_length; /* page length (should be 0x16) */
u_int8_t trk_z[2]; /* tracks per zone */
u_int8_t alt_sec[2]; /* alternate sectors per zone */
u_int8_t alt_trk_z[2]; /* alternate tracks per zone */
u_int8_t alt_trk_v[2]; /* alternate tracks per volume */
u_int8_t ph_sec_t[2]; /* physical sectors per track */
u_int8_t bytes_s[2]; /* bytes per sector */
u_int8_t interleave[2]; /* interleave */
u_int8_t trk_skew[2]; /* track skew factor */
u_int8_t cyl_skew[2]; /* cylinder skew */
u_int8_t flags; /* various */
#define DISK_FMT_SURF 0x10
#define DISK_FMT_RMB 0x20
#define DISK_FMT_HSEC 0x40
#define DISK_FMT_SSEC 0x80
u_int8_t reserved1;
u_int8_t reserved2;
u_int8_t reserved3;
};
struct page_rigid_geometry {
u_int8_t pg_code; /* page code (should be 4) */
u_int8_t pg_length; /* page length (should be 0x12 or 0x16) */
u_int8_t ncyl[3]; /* number of cylinders */
u_int8_t nheads; /* number of heads */
u_int8_t st_cyl_wp[3]; /* starting cyl., write precomp */
u_int8_t st_cyl_rwc[3]; /* starting cyl., red. write cur */
u_int8_t driv_step[2]; /* drive step rate */
u_int8_t land_zone[3]; /* landing zone cylinder */
u_int8_t sp_sync_ctl; /* spindle synch control */
#define SPINDLE_SYNCH_MASK 0x03 /* mask of valid bits */
#define SPINDLE_SYNCH_NONE 0x00 /* synch disabled or not supported */
#define SPINDLE_SYNCH_SLAVE 0x01 /* disk is a slave */
#define SPINDLE_SYNCH_MASTER 0x02 /* disk is a master */
#define SPINDLE_SYNCH_MCONTROL 0x03 /* disk is a master control */
u_int8_t rot_offset; /* rotational offset (for spindle synch) */
u_int8_t reserved1;
u_int8_t rpm[2]; /* media rotation speed */
u_int8_t reserved2;
u_int8_t reserved3;
};
struct page_flex_geometry {
u_int8_t pg_code; /* page code (should be 5) */
u_int8_t pg_length; /* page length (should be 0x1a or 0x1e) */
u_int8_t xfr_rate[2];
u_int8_t nheads; /* number of heads */
u_int8_t ph_sec_tr; /* physical sectors per track */
u_int8_t bytes_s[2]; /* bytes per sector */
u_int8_t ncyl[2]; /* number of cylinders */
u_int8_t st_cyl_wp[2]; /* start cyl., write precomp */
u_int8_t st_cyl_rwc[2]; /* start cyl., red. write cur */
u_int8_t driv_step[2]; /* drive step rate */
u_int8_t driv_step_w; /* drive step pulse width */
u_int8_t head_settle[2];/* head settle delay */
u_int8_t motor_on; /* motor on delay */
u_int8_t motor_off; /* motor off delay */
u_int8_t flags; /* various flags */
#define MOTOR_ON 0x20 /* motor on (pin 16)? */
#define START_AT_SECTOR_1 0x40 /* start at sector 1 */
#define READY_VALID 0x20 /* RDY (pin 34) valid */
u_int8_t step_p_cyl; /* step pulses per cylinder */
u_int8_t write_pre; /* write precompensation */
u_int8_t head_load; /* head load delay */
u_int8_t head_unload; /* head unload delay */
u_int8_t pin_34_2; /* pin 34 (6) pin 2 (7/11) definition */
u_int8_t pin_4_1; /* pin 4 (8/9) pin 1 (13) definition */
u_int8_t rpm[2]; /* media rotation speed */
u_int8_t reserved1;
u_int8_t reserved2;
};
struct page_reduced_geometry {
u_int8_t pg_code; /* page code (should be 6) */
u_int8_t pg_length; /* page length (should be 0x0B) */
u_int8_t wcd; /* bit 0 = write cache disable */
u_int8_t bytes_s[2]; /* bytes per sector */
u_int8_t sectors[5]; /* total number of sectors */
u_int8_t pow_perf; /* power/performance level */
u_int8_t flags; /* various */
#define LOCK_DISABLED 0x1
#define FORMAT_DISABLED 0x2
#define WRITE_DISABLED 0x4
#define READ_DISABLED 0x8
u_int8_t reserved;
};
struct page_caching_mode {
u_int8_t pg_code; /* page code (should be 8) */
u_int8_t pg_length; /* page length (should be 0x12) */
u_int8_t flags;
#define PG_CACHE_FL_RCD (1<<0)
#define PG_CACHE_FL_MF (1<<1)
#define PG_CACHE_FL_WCE (1<<2)
#define PG_CACHE_FL_SIZE (1<<3)
#define PG_CACHE_FL_DISC (1<<4)
#define PG_CACHE_FL_CAP (1<<5)
#define PG_CACHE_FL_ABPF (1<<6)
#define PG_CACHE_FL_IC (1<<7)
u_int8_t priority;
#define PG_CACHE_PRI_DEMAND(_f) ((_f) & 0x0f)
#define PG_CACHE_PRI_WRITE(_f) (((_f) >> 4) & 0x0f)
u_int8_t dis_prefetch_tl[2];
u_int8_t min_prefetch[2];
u_int8_t max_prefetch[2];
u_int8_t max_prefetch_ceil[2];
};
#define SI_PG_DISK_LIMITS 0xb0 /* block limits */
#define SI_PG_DISK_INFO 0xb1 /* device characteristics */
#define SI_PG_DISK_THIN 0xb2 /* thin provisioning */
struct scsi_vpd_disk_limits {
struct scsi_vpd_hdr hdr;
#define SI_PG_DISK_LIMITS_LEN 0x10
#define SI_PG_DISK_LIMITS_LEN_THIN 0x3c
u_int8_t _reserved1[1];
u_int8_t max_comp_wr_len;
u_int8_t optimal_xfer_granularity[2];
u_int8_t max_xfer_len[4];
u_int8_t optimal_xfer[4];
u_int8_t max_xd_prefetch_len[4];
u_int8_t max_unmap_lba_count[4];
u_int8_t max_unmap_desc_count[4];
u_int8_t optimal_unmap_granularity[4];
u_int8_t unmap_granularity_align[4];
#define SI_PG_DISK_LIMITS_UGAVALID (1U << 31)
u_int8_t _reserved2[28];
};
struct scsi_vpd_disk_info {
struct scsi_vpd_hdr hdr;
u_int8_t rpm[2];
#define VPD_DISK_INFO_RPM_UNDEF 0x0000
#define VPD_DISK_INFO_RPM_NONE 0x0001
u_int8_t _reserved1[1];
u_int8_t form_factor;
#define VPD_DISK_INFO_FORM_MASK 0xf
#define VPD_DISK_INFO_FORM_UNDEF 0x0
#define VPD_DISK_INFO_FORM_5_25 0x1
#define VPD_DISK_INFO_FORM_3_5 0x2
#define VPD_DISK_INFO_FORM_2_5 0x3
#define VPD_DISK_INFO_FORM_1_8 0x4
#define VPD_DISK_INFO_FORM_LT_1_8 0x5
u_int8_t _reserved2[56];
};
struct scsi_vpd_disk_thin {
struct scsi_vpd_hdr hdr;
u_int8_t threshold_exponent;
u_int8_t flags;
#define VPD_DISK_THIN_DP (1 << 0) /* descriptor present */
#define VPD_DISK_THIN_ANC_SUP (0x7 << 1)
#define VPD_DISK_THIN_ANC_SUP_NO (0x0 << 1)
#define VPD_DISK_THIN_ANC_SUP_YES (0x1 << 1)
#define VPD_DISK_THIN_TPWS (1 << 6) /* WRITE SAME 16 */
#define VPD_DISK_THIN_TPU (1 << 7) /* UNMAP */
u_int8_t _reserved1[2];
/* followed by a designation descriptor if DP is set */
};
#endif /* _SCSI_SCSI_DISK_H */
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