1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _SYS_DKIO_H 27 #define _SYS_DKIO_H 28 29 #pragma ident "%Z%%M% %I% %E% SMI" /* SunOS-4.0 5.19 */ 30 31 #include <sys/dklabel.h> /* Needed for NDKMAP define */ 32 33 #ifdef __cplusplus 34 extern "C" { 35 #endif 36 37 /* 38 * Structures and definitions for disk io control commands 39 */ 40 41 /* 42 * Structures used as data by ioctl calls. 43 */ 44 45 #define DK_DEVLEN 16 /* device name max length, including */ 46 /* unit # & NULL (ie - "xyc1") */ 47 48 /* 49 * Used for controller info 50 */ 51 struct dk_cinfo { 52 char dki_cname[DK_DEVLEN]; /* controller name (no unit #) */ 53 ushort_t dki_ctype; /* controller type */ 54 ushort_t dki_flags; /* flags */ 55 ushort_t dki_cnum; /* controller number */ 56 uint_t dki_addr; /* controller address */ 57 uint_t dki_space; /* controller bus type */ 58 uint_t dki_prio; /* interrupt priority */ 59 uint_t dki_vec; /* interrupt vector */ 60 char dki_dname[DK_DEVLEN]; /* drive name (no unit #) */ 61 uint_t dki_unit; /* unit number */ 62 uint_t dki_slave; /* slave number */ 63 ushort_t dki_partition; /* partition number */ 64 ushort_t dki_maxtransfer; /* max. transfer size in DEV_BSIZE */ 65 }; 66 67 /* 68 * Controller types 69 */ 70 #define DKC_UNKNOWN 0 71 #define DKC_CDROM 1 /* CD-ROM, SCSI or otherwise */ 72 #define DKC_WDC2880 2 73 #define DKC_XXX_0 3 /* unassigned */ 74 #define DKC_XXX_1 4 /* unassigned */ 75 #define DKC_DSD5215 5 76 #define DKC_ACB4000 7 77 #define DKC_MD21 8 78 #define DKC_XXX_2 9 /* unassigned */ 79 #define DKC_NCRFLOPPY 10 80 #define DKC_SMSFLOPPY 12 81 #define DKC_SCSI_CCS 13 /* SCSI CCS compatible */ 82 #define DKC_INTEL82072 14 /* native floppy chip */ 83 #define DKC_MD 16 /* meta-disk (virtual-disk) driver */ 84 #define DKC_INTEL82077 19 /* 82077 floppy disk controller */ 85 #define DKC_DIRECT 20 /* Intel direct attached device i.e. IDE */ 86 #define DKC_PCMCIA_MEM 21 /* PCMCIA memory disk-like type */ 87 #define DKC_PCMCIA_ATA 22 /* PCMCIA AT Attached type */ 88 89 /* 90 * Sun reserves up through 1023 91 */ 92 93 #define DKC_CUSTOMER_BASE 1024 94 95 /* 96 * Flags 97 */ 98 #define DKI_BAD144 0x01 /* use DEC std 144 bad sector fwding */ 99 #define DKI_MAPTRK 0x02 /* controller does track mapping */ 100 #define DKI_FMTTRK 0x04 /* formats only full track at a time */ 101 #define DKI_FMTVOL 0x08 /* formats only full volume at a time */ 102 #define DKI_FMTCYL 0x10 /* formats only full cylinders at a time */ 103 #define DKI_HEXUNIT 0x20 /* unit number is printed as 3 hex digits */ 104 #define DKI_PCMCIA_PFD 0x40 /* PCMCIA pseudo-floppy memory card */ 105 106 /* 107 * Used for all partitions 108 */ 109 struct dk_allmap { 110 struct dk_map dka_map[NDKMAP]; 111 }; 112 113 #if defined(_SYSCALL32) 114 struct dk_allmap32 { 115 struct dk_map32 dka_map[NDKMAP]; 116 }; 117 #endif /* _SYSCALL32 */ 118 119 /* 120 * Definition of a disk's geometry 121 */ 122 struct dk_geom { 123 unsigned short dkg_ncyl; /* # of data cylinders */ 124 unsigned short dkg_acyl; /* # of alternate cylinders */ 125 unsigned short dkg_bcyl; /* cyl offset (for fixed head area) */ 126 unsigned short dkg_nhead; /* # of heads */ 127 unsigned short dkg_obs1; /* obsolete */ 128 unsigned short dkg_nsect; /* # of data sectors per track */ 129 unsigned short dkg_intrlv; /* interleave factor */ 130 unsigned short dkg_obs2; /* obsolete */ 131 unsigned short dkg_obs3; /* obsolete */ 132 unsigned short dkg_apc; /* alternates per cyl (SCSI only) */ 133 unsigned short dkg_rpm; /* revolutions per minute */ 134 unsigned short dkg_pcyl; /* # of physical cylinders */ 135 unsigned short dkg_write_reinstruct; /* # sectors to skip, writes */ 136 unsigned short dkg_read_reinstruct; /* # sectors to skip, reads */ 137 unsigned short dkg_extra[7]; /* for compatible expansion */ 138 }; 139 140 /* 141 * These defines are for historic compatibility with old drivers. 142 */ 143 #define dkg_bhead dkg_obs1 /* used to be head offset */ 144 #define dkg_gap1 dkg_obs2 /* used to be gap1 */ 145 #define dkg_gap2 dkg_obs3 /* used to be gap2 */ 146 147 /* 148 * Disk io control commands 149 * Warning: some other ioctls with the DIOC prefix exist elsewhere. 150 * The Generic DKIOC numbers are from 0 - 50. 151 * The Floppy Driver uses 51 - 100. 152 * The Hard Disk (except SCSI) 101 - 106. (these are obsolete) 153 * The CDROM Driver 151 - 200. 154 * The USCSI ioctl 201 - 250. 155 */ 156 #define DKIOC (0x04 << 8) 157 158 /* 159 * The following ioctls are generic in nature and need to be 160 * suported as appropriate by all disk drivers 161 */ 162 #define DKIOCGGEOM (DKIOC|1) /* Get geometry */ 163 #define DKIOCINFO (DKIOC|3) /* Get info */ 164 #define DKIOCEJECT (DKIOC|6) /* Generic 'eject' */ 165 #define DKIOCGVTOC (DKIOC|11) /* Get VTOC */ 166 #define DKIOCSVTOC (DKIOC|12) /* Set VTOC & Write to Disk */ 167 168 /* 169 * Disk Cache Controls. These ioctls should be supported by 170 * all disk drivers. 171 * 172 * DKIOCFLUSHWRITECACHE when used from user-mode ignores the ioctl 173 * argument, but it should be passed as NULL to allow for future 174 * reinterpretation. From user-mode, this ioctl request is synchronous. 175 * 176 * When invoked from within the kernel, the arg can be NULL to indicate 177 * a synchronous request or can be the address of a struct dk_callback 178 * to request an asynchronous callback when the flush request is complete. 179 * In this case, the flag to the ioctl must include FKIOCTL and the 180 * dkc_callback field of the pointed to struct must be non-null or the 181 * request is made synchronously. 182 * 183 * In the callback case: if the ioctl returns 0, a callback WILL be performed. 184 * If the ioctl returns non-zero, a callback will NOT be performed. 185 * NOTE: In some cases, the callback may be done BEFORE the ioctl call 186 * returns. The caller's locking strategy should be prepared for this case. 187 */ 188 #define DKIOCFLUSHWRITECACHE (DKIOC|34) /* flush cache to phys medium */ 189 190 struct dk_callback { 191 void (*dkc_callback)(void *dkc_cookie, int error); 192 void *dkc_cookie; 193 }; 194 195 #define DKIOCGETWCE (DKIOC|36) /* Get current write cache */ 196 /* enablement status */ 197 #define DKIOCSETWCE (DKIOC|37) /* Enable/Disable write cache */ 198 199 /* 200 * The following ioctls are used by Sun drivers to communicate 201 * with their associated format routines. Support of these ioctls 202 * is not required of foreign drivers 203 */ 204 #define DKIOCSGEOM (DKIOC|2) /* Set geometry */ 205 #define DKIOCSAPART (DKIOC|4) /* Set all partitions */ 206 #define DKIOCGAPART (DKIOC|5) /* Get all partitions */ 207 #define DKIOCG_PHYGEOM (DKIOC|32) /* get physical geometry */ 208 #define DKIOCG_VIRTGEOM (DKIOC|33) /* get virtual geometry */ 209 210 /* 211 * The following ioctl's are removable media support 212 */ 213 #define DKIOCLOCK (DKIOC|7) /* Generic 'lock' */ 214 #define DKIOCUNLOCK (DKIOC|8) /* Generic 'unlock' */ 215 #define DKIOCSTATE (DKIOC|13) /* Inquire insert/eject state */ 216 #define DKIOCREMOVABLE (DKIOC|16) /* is media removable */ 217 218 219 /* 220 * ioctl for hotpluggable devices 221 */ 222 #define DKIOCHOTPLUGGABLE (DKIOC|35) /* is hotpluggable */ 223 224 /* 225 * Ioctl to force driver to re-read the alternate partition and rebuild 226 * the internal defect map. 227 */ 228 #define DKIOCADDBAD (DKIOC|20) /* Re-read the alternate map (IDE) */ 229 #define DKIOCGETDEF (DKIOC|21) /* read defect list (IDE) */ 230 231 /* 232 * Used by applications to get disk defect information from IDE 233 * drives. 234 */ 235 #ifdef _SYSCALL32 236 struct defect_header32 { 237 int head; 238 caddr32_t buffer; 239 }; 240 #endif /* _SYSCALL32 */ 241 242 struct defect_header { 243 int head; 244 caddr_t buffer; 245 }; 246 247 #define DKIOCPARTINFO (DKIOC|22) /* Get partition or slice parameters */ 248 249 /* 250 * Used by applications to get partition or slice information 251 */ 252 #ifdef _SYSCALL32 253 struct part_info32 { 254 daddr32_t p_start; 255 int p_length; 256 }; 257 #endif /* _SYSCALL32 */ 258 259 struct part_info { 260 daddr_t p_start; 261 int p_length; 262 }; 263 264 /* The following ioctls are for Optical Memory Device */ 265 #define DKIOC_EBP_ENABLE (DKIOC|40) /* enable by pass erase on write */ 266 #define DKIOC_EBP_DISABLE (DKIOC|41) /* disable by pass erase on write */ 267 268 /* 269 * This state enum is the argument passed to the DKIOCSTATE ioctl. 270 */ 271 enum dkio_state { DKIO_NONE, DKIO_EJECTED, DKIO_INSERTED, DKIO_DEV_GONE }; 272 273 #define DKIOCGMEDIAINFO (DKIOC|42) /* get information about the media */ 274 275 /* 276 * ioctls to read/write mboot info. 277 */ 278 #define DKIOCGMBOOT (DKIOC|43) /* get mboot info */ 279 #define DKIOCSMBOOT (DKIOC|44) /* set mboot info */ 280 281 /* 282 * ioctl to get the device temperature. 283 */ 284 #define DKIOCGTEMPERATURE (DKIOC|45) /* get temperature */ 285 286 /* 287 * Used for providing the temperature. 288 */ 289 290 struct dk_temperature { 291 uint_t dkt_flags; /* Flags */ 292 short dkt_cur_temp; /* Current disk temperature */ 293 short dkt_ref_temp; /* reference disk temperature */ 294 }; 295 296 #define DKT_BYPASS_PM 0x1 297 #define DKT_INVALID_TEMP 0xFFFF 298 299 300 /* 301 * Used for Media info or the current profile info 302 */ 303 struct dk_minfo { 304 uint_t dki_media_type; /* Media type or profile info */ 305 uint_t dki_lbsize; /* Logical blocksize of media */ 306 diskaddr_t dki_capacity; /* Capacity as # of dki_lbsize blks */ 307 }; 308 309 /* 310 * Media types or profiles known 311 */ 312 #define DK_UNKNOWN 0x00 /* Media inserted - type unknown */ 313 314 315 /* 316 * SFF 8090 Specification Version 3, media types 0x01 - 0xfffe are retained to 317 * maintain compatibility with SFF8090. The following define the 318 * optical media type. 319 */ 320 #define DK_REMOVABLE_DISK 0x02 /* Removable Disk */ 321 #define DK_MO_ERASABLE 0x03 /* MO Erasable */ 322 #define DK_MO_WRITEONCE 0x04 /* MO Write once */ 323 #define DK_AS_MO 0x05 /* AS MO */ 324 #define DK_CDROM 0x08 /* CDROM */ 325 #define DK_CDR 0x09 /* CD-R */ 326 #define DK_CDRW 0x0A /* CD-RW */ 327 #define DK_DVDROM 0x10 /* DVD-ROM */ 328 #define DK_DVDR 0x11 /* DVD-R */ 329 #define DK_DVDRAM 0x12 /* DVD_RAM or DVD-RW */ 330 331 /* 332 * Media types for other rewritable magnetic media 333 */ 334 #define DK_FIXED_DISK 0x10001 /* Fixed disk SCSI or otherwise */ 335 #define DK_FLOPPY 0x10002 /* Floppy media */ 336 #define DK_ZIP 0x10003 /* IOMEGA ZIP media */ 337 #define DK_JAZ 0x10004 /* IOMEGA JAZ media */ 338 339 #define DKIOCSETEFI (DKIOC|17) /* Set EFI info */ 340 #define DKIOCGETEFI (DKIOC|18) /* Get EFI info */ 341 342 #define DKIOCPARTITION (DKIOC|9) /* Get partition info */ 343 344 /* 345 * Ioctls to get/set volume capabilities related to Logical Volume Managers. 346 * They include the ability to get/set capabilities and to issue a read to a 347 * specific underlying device of a replicated device. 348 */ 349 350 #define DKIOCGETVOLCAP (DKIOC | 25) /* Get volume capabilities */ 351 #define DKIOCSETVOLCAP (DKIOC | 26) /* Set volume capabilities */ 352 #define DKIOCDMR (DKIOC | 27) /* Issue a directed read */ 353 354 typedef uint_t volcapinfo_t; 355 356 typedef uint_t volcapset_t; 357 358 #define DKV_ABR_CAP 0x00000001 /* Support Appl.Based Recovery */ 359 #define DKV_DMR_CAP 0x00000002 /* Support Directed Mirror Read */ 360 361 typedef struct volcap { 362 volcapinfo_t vc_info; /* Capabilities available */ 363 volcapset_t vc_set; /* Capabilities set */ 364 } volcap_t; 365 366 #define VOL_SIDENAME 256 367 368 typedef struct vol_directed_rd { 369 int vdr_flags; 370 offset_t vdr_offset; 371 size_t vdr_nbytes; 372 size_t vdr_bytesread; 373 void *vdr_data; 374 int vdr_side; 375 char vdr_side_name[VOL_SIDENAME]; 376 } vol_directed_rd_t; 377 378 #define DKV_SIDE_INIT (-1) 379 #define DKV_DMR_NEXT_SIDE 0x00000001 380 #define DKV_DMR_DONE 0x00000002 381 #define DKV_DMR_ERROR 0x00000004 382 #define DKV_DMR_SUCCESS 0x00000008 383 #define DKV_DMR_SHORT 0x00000010 384 385 #ifdef _MULTI_DATAMODEL 386 #if _LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4 387 #pragma pack(4) 388 #endif 389 typedef struct vol_directed_rd32 { 390 int32_t vdr_flags; 391 offset_t vdr_offset; /* 64-bit element on 32-bit alignment */ 392 size32_t vdr_nbytes; 393 size32_t vdr_bytesread; 394 caddr32_t vdr_data; 395 int32_t vdr_side; 396 char vdr_side_name[VOL_SIDENAME]; 397 } vol_directed_rd32_t; 398 #if _LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4 399 #pragma pack() 400 #endif 401 #endif /* _MULTI_DATAMODEL */ 402 403 #ifdef __cplusplus 404 } 405 #endif 406 407 #endif /* _SYS_DKIO_H */ 408