| mtio.4 (256281) | mtio.4 (280438) |
|---|---|
| 1.\" Copyright (c) 1996 2.\" Mike Pritchard <mpp@FreeBSD.org>. All rights reserved. 3.\" 4.\" Copyright (c) 1983, 1991, 1993 5.\" The Regents of the University of California. All rights reserved. 6.\" 7.\" Redistribution and use in source and binary forms, with or without 8.\" modification, are permitted provided that the following conditions --- 19 unchanged lines hidden (view full) --- 28.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33.\" SUCH DAMAGE. 34.\" 35.\" @(#)mtio.4 8.1 (Berkeley) 6/5/93 | 1.\" Copyright (c) 1996 2.\" Mike Pritchard <mpp@FreeBSD.org>. All rights reserved. 3.\" 4.\" Copyright (c) 1983, 1991, 1993 5.\" The Regents of the University of California. All rights reserved. 6.\" 7.\" Redistribution and use in source and binary forms, with or without 8.\" modification, are permitted provided that the following conditions --- 19 unchanged lines hidden (view full) --- 28.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33.\" SUCH DAMAGE. 34.\" 35.\" @(#)mtio.4 8.1 (Berkeley) 6/5/93 |
| 36.\" $FreeBSD: stable/10/share/man/man4/mtio.4 231564 2012-02-12 18:29:56Z ed $ | 36.\" $FreeBSD: stable/10/share/man/man4/mtio.4 280438 2015-03-24 14:36:10Z ken $ |
| 37.\" | 37.\" |
| 38.Dd November 11, 2011 | 38.Dd February 12, 2015 |
| 39.Dt MTIO 4 40.Os 41.Sh NAME 42.Nm mtio 43.Nd FreeBSD magtape interface 44.Sh DESCRIPTION 45The special files 46named | 39.Dt MTIO 4 40.Os 41.Sh NAME 42.Nm mtio 43.Nd FreeBSD magtape interface 44.Sh DESCRIPTION 45The special files 46named |
| 47.Pa /dev/[n]sa* | 47.Pa /dev/[en]sa* |
| 48refer to SCSI tape drives, 49which may be attached to the system. | 48refer to SCSI tape drives, 49which may be attached to the system. |
| 50.Pa /dev/[n]sa*.ctl | 50.Pa /dev/sa*.ctl |
| 51are control devices that can be used to issue ioctls to the SCSI 52tape driver to set parameters that are required to last beyond the 53unmounting of a tape. 54.Pp 55The rewind devices automatically rewind 56when the last requested read, write or seek has finished, or the end of the tape 57has been reached. 58The letter 59.Ql n | 51are control devices that can be used to issue ioctls to the SCSI 52tape driver to set parameters that are required to last beyond the 53unmounting of a tape. 54.Pp 55The rewind devices automatically rewind 56when the last requested read, write or seek has finished, or the end of the tape 57has been reached. 58The letter 59.Ql n |
| 60is usually prepended to | 60is prepended to |
| 61the name of the no-rewind devices. | 61the name of the no-rewind devices. |
| 62The letter 63.Ql e 64is prepended to the name of the eject devices. |
|
| 62.Pp 63Tapes can be written with either fixed length records or variable length 64records. 65See 66.Xr sa 4 67for more information. | 65.Pp 66Tapes can be written with either fixed length records or variable length 67records. 68See 69.Xr sa 4 70for more information. |
| 68Two end-of-file markers mark the end of a tape, and 69one end-of-file marker marks the end of a tape file. | 71Two filemarks mark the end of a tape, and 72one filemark marks the end of a tape file. |
| 70If the tape is not to be rewound it is positioned with the 71head in between the two tape marks, where the next write 72will over write the second end-of-file marker. 73.Pp 74All of the magtape devices may be manipulated with the 75.Xr mt 1 76command. 77.Pp --- 49 unchanged lines hidden (view full) --- 127 128#define MTERASE 12 /* erase to EOM */ 129#define MTEOD 13 /* Space to EOM */ 130#define MTCOMP 14 /* select compression mode 0=off, 1=def */ 131#define MTRETENS 15 /* re-tension tape */ 132#define MTWSS 16 /* write setmark(s) */ 133#define MTFSS 17 /* forward space setmark */ 134#define MTBSS 18 /* backward space setmark */ | 73If the tape is not to be rewound it is positioned with the 74head in between the two tape marks, where the next write 75will over write the second end-of-file marker. 76.Pp 77All of the magtape devices may be manipulated with the 78.Xr mt 1 79command. 80.Pp --- 49 unchanged lines hidden (view full) --- 130 131#define MTERASE 12 /* erase to EOM */ 132#define MTEOD 13 /* Space to EOM */ 133#define MTCOMP 14 /* select compression mode 0=off, 1=def */ 134#define MTRETENS 15 /* re-tension tape */ 135#define MTWSS 16 /* write setmark(s) */ 136#define MTFSS 17 /* forward space setmark */ 137#define MTBSS 18 /* backward space setmark */ |
| 138#define MTLOAD 19 /* load tape in drive */ 139#define MTWEOFI 20 /* write an end-of-file record without waiting*/ |
|
| 135 136#define MT_COMP_ENABLE 0xffffffff 137#define MT_COMP_DISABLED 0xfffffffe 138#define MT_COMP_UNSUPP 0xfffffffd 139 140/* 141 * Values in mt_dsreg that say what the device is doing 142 */ --- 80 unchanged lines hidden (view full) --- 223 } wterr, rderr; 224}; 225 226union mterrstat { 227 struct scsi_tape_errors scsi_errstat; 228 char _reserved_padding[256]; 229}; 230 | 140 141#define MT_COMP_ENABLE 0xffffffff 142#define MT_COMP_DISABLED 0xfffffffe 143#define MT_COMP_UNSUPP 0xfffffffd 144 145/* 146 * Values in mt_dsreg that say what the device is doing 147 */ --- 80 unchanged lines hidden (view full) --- 228 } wterr, rderr; 229}; 230 231union mterrstat { 232 struct scsi_tape_errors scsi_errstat; 233 char _reserved_padding[256]; 234}; 235 |
| 236struct mtrblim { 237 uint32_t granularity; 238 uint32_t min_block_length; 239 uint32_t max_block_length; 240}; 241 242typedef enum { 243 MT_LOCATE_DEST_OBJECT = 0x00, 244 MT_LOCATE_DEST_FILE = 0x01, 245 MT_LOCATE_DEST_SET = 0x02, 246 MT_LOCATE_DEST_EOD = 0x03 247} mt_locate_dest_type; 248 249typedef enum { 250 MT_LOCATE_BAM_IMPLICIT = 0x00, 251 MT_LOCATE_BAM_EXPLICIT = 0x01 252} mt_locate_bam; 253 254typedef enum { 255 MT_LOCATE_FLAG_IMMED = 0x01, 256 MT_LOCATE_FLAG_CHANGE_PART = 0x02 257} mt_locate_flags; 258 259struct mtlocate { 260 mt_locate_flags flags; 261 mt_locate_dest_type dest_type; 262 mt_locate_bam block_address_mode; 263 int64_t partition; 264 uint64_t logical_id; 265 uint8_t reserved[64]; 266}; 267 268typedef enum { 269 MT_EXT_GET_NONE, 270 MT_EXT_GET_OK, 271 MT_EXT_GET_NEED_MORE_SPACE, 272 MT_EXT_GET_ERROR 273} mt_ext_get_status; 274 275struct mtextget { 276 uint32_t alloc_len; 277 char *status_xml; 278 uint32_t fill_len; 279 mt_ext_get_status status; 280 char error_str[128]; 281 uint8_t reserved[64]; 282}; 283 284#define MT_EXT_GET_ROOT_NAME "mtextget" 285#define MT_DENSITY_ROOT_NAME "mtdensity" 286#define MT_MEDIA_DENSITY_NAME "media_density" 287#define MT_DENSITY_REPORT_NAME "density_report" 288#define MT_MEDIUM_TYPE_REPORT_NAME "medium_type_report" 289#define MT_MEDIA_REPORT_NAME "media_report" 290#define MT_DENSITY_ENTRY_NAME "density_entry" 291 292#define MT_DENS_WRITE_OK 0x80 293#define MT_DENS_DUP 0x40 294#define MT_DENS_DEFLT 0x20 295 296 297#define MT_PARAM_FIXED_STR_LEN 32 298union mt_param_value { 299 int64_t value_signed; 300 uint64_t value_unsigned; 301 char *value_var_str; 302 char value_fixed_str[MT_PARAM_FIXED_STR_LEN]; 303 uint8_t reserved[64]; 304}; 305 306typedef enum { 307 MT_PARAM_SET_NONE, 308 MT_PARAM_SET_SIGNED, 309 MT_PARAM_SET_UNSIGNED, 310 MT_PARAM_SET_VAR_STR, 311 MT_PARAM_SET_FIXED_STR 312} mt_param_set_type; 313 314typedef enum { 315 MT_PARAM_STATUS_NONE, 316 MT_PARAM_STATUS_OK, 317 MT_PARAM_STATUS_ERROR 318} mt_param_set_status; 319 320#define MT_PARAM_VALUE_NAME_LEN 64 321struct mtparamset { 322 char value_name[MT_PARAM_VALUE_NAME_LEN]; 323 mt_param_set_type value_type; 324 int value_len; 325 union mt_param_value value; 326 mt_param_set_status status; 327 char error_str[128]; 328}; 329 330#define MT_PARAM_ROOT_NAME "mtparamget" 331#define MT_PROTECTION_NAME "protection" 332 |
|
| 231/* | 333/* |
| 334 * Set a list of parameters. 335 */ 336struct mtsetlist { 337 int num_params; 338 int param_len; 339 struct mtparamset *params; 340}; 341 342/* |
|
| 232 * Constants for mt_type byte. These are the same 233 * for controllers compatible with the types listed. 234 */ 235#define MT_ISTS 0x01 /* TS-11 */ 236#define MT_ISHT 0x02 /* TM03 Massbus: TE16, TU45, TU77 */ 237#define MT_ISTM 0x03 /* TM11/TE10 Unibus */ 238#define MT_ISMT 0x04 /* TM78/TU78 Massbus */ 239#define MT_ISUT 0x05 /* SI TU-45 emulation on Unibus */ --- 32 unchanged lines hidden (view full) --- 272#define MTIOCERRSTAT _IOR('m', 7, union mterrstat) /* get tape errors */ 273/* 274 * Set EOT model- argument is number of filemarks to end a tape with. 275 * Note that not all possible values will be accepted. 276 */ 277#define MTIOCSETEOTMODEL _IOW('m', 8, uint32_t) 278/* Get current EOT model */ 279#define MTIOCGETEOTMODEL _IOR('m', 8, uint32_t) | 343 * Constants for mt_type byte. These are the same 344 * for controllers compatible with the types listed. 345 */ 346#define MT_ISTS 0x01 /* TS-11 */ 347#define MT_ISHT 0x02 /* TM03 Massbus: TE16, TU45, TU77 */ 348#define MT_ISTM 0x03 /* TM11/TE10 Unibus */ 349#define MT_ISMT 0x04 /* TM78/TU78 Massbus */ 350#define MT_ISUT 0x05 /* SI TU-45 emulation on Unibus */ --- 32 unchanged lines hidden (view full) --- 383#define MTIOCERRSTAT _IOR('m', 7, union mterrstat) /* get tape errors */ 384/* 385 * Set EOT model- argument is number of filemarks to end a tape with. 386 * Note that not all possible values will be accepted. 387 */ 388#define MTIOCSETEOTMODEL _IOW('m', 8, uint32_t) 389/* Get current EOT model */ 390#define MTIOCGETEOTMODEL _IOR('m', 8, uint32_t) |
| 391#define MTIOCRBLIM _IOR('m', 9, struct mtrblim) /* get block limits */ 392#define MTIOCEXTLOCATE _IOW('m', 10, struct mtlocate) /* seek to position */ 393#define MTIOCEXTGET _IOWR('m', 11, struct mtextget) /* get tape status */ 394#define MTIOCPARAMGET _IOWR('m', 12, struct mtextget) /* get tape params */ 395#define MTIOCPARAMSET _IOWR('m', 13, struct mtparamset) /* set tape params */ 396#define MTIOCSETLIST _IOWR('m', 14, struct mtsetlist) /* set N params */ |
|
| 280 281#ifndef _KERNEL 282#define DEFTAPE "/dev/nsa0" 283#endif 284 285#endif /* !_SYS_MTIO_H_ */ 286.Ed 287.Sh FILES | 397 398#ifndef _KERNEL 399#define DEFTAPE "/dev/nsa0" 400#endif 401 402#endif /* !_SYS_MTIO_H_ */ 403.Ed 404.Sh FILES |
| 288.Bl -tag -width /dev/[n]sa* -compact 289.It Pa /dev/[n]sa* | 405.Bl -tag -width /dev/[en]sa* -compact 406.It Pa /dev/[en]sa* |
| 290.El 291.Sh SEE ALSO 292.Xr mt 1 , 293.Xr tar 1 , | 407.El 408.Sh SEE ALSO 409.Xr mt 1 , 410.Xr tar 1 , |
| 294.Xr ast 4 , | |
| 295.Xr sa 4 296.Sh HISTORY 297The 298.Nm 299manual appeared in 300.Bx 4.2 . 301An i386 version first appeared in 302.Fx 2.2 . | 411.Xr sa 4 412.Sh HISTORY 413The 414.Nm 415manual appeared in 416.Bx 4.2 . 417An i386 version first appeared in 418.Fx 2.2 . |
| 303.Sh BUGS 304The status should be returned in a device independent format. 305.Pp 306The special file naming should be redone in a more consistent and 307understandable manner. | |