| 1 | /* |
| 2 | * $FreeBSD: src/sys/cam/scsi/scsi_sa.c,v 1.45.2.13 2002/12/17 17:08:50 trhodes Exp $ |
| 3 | * $DragonFly: src/sys/bus/cam/scsi/scsi_sa.c,v 1.6 2003/07/21 05:50:24 dillon Exp $ |
| 4 | * |
| 5 | * Implementation of SCSI Sequential Access Peripheral driver for CAM. |
| 6 | * |
| 7 | * Copyright (c) 1999, 2000 Matthew Jacob |
| 8 | * All rights reserved. |
| 9 | * |
| 10 | * Redistribution and use in source and binary forms, with or without |
| 11 | * modification, are permitted provided that the following conditions |
| 12 | * are met: |
| 13 | * 1. Redistributions of source code must retain the above copyright |
| 14 | * notice, this list of conditions, and the following disclaimer, |
| 15 | * without modification, immediately at the beginning of the file. |
| 16 | * 2. The name of the author may not be used to endorse or promote products |
| 17 | * derived from this software without specific prior written permission. |
| 18 | * |
| 19 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| 20 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 21 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 22 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR |
| 23 | * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 24 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 25 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 26 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 27 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 28 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 29 | * SUCH DAMAGE. |
| 30 | * |
| 31 | */ |
| 32 | |
| 33 | #include <sys/param.h> |
| 34 | #include <sys/queue.h> |
| 35 | #ifdef _KERNEL |
| 36 | #include <sys/systm.h> |
| 37 | #include <sys/kernel.h> |
| 38 | #endif |
| 39 | #include <sys/types.h> |
| 40 | #include <sys/buf.h> |
| 41 | #include <sys/malloc.h> |
| 42 | #include <sys/mtio.h> |
| 43 | #include <sys/conf.h> |
| 44 | #include <sys/proc.h> |
| 45 | #include <sys/buf2.h> |
| 46 | #include <sys/devicestat.h> |
| 47 | #include <machine/limits.h> |
| 48 | |
| 49 | #ifndef _KERNEL |
| 50 | #include <stdio.h> |
| 51 | #include <string.h> |
| 52 | #endif |
| 53 | |
| 54 | #include <cam/cam.h> |
| 55 | #include <cam/cam_ccb.h> |
| 56 | #include <cam/cam_extend.h> |
| 57 | #include <cam/cam_periph.h> |
| 58 | #include <cam/cam_xpt_periph.h> |
| 59 | #include <cam/cam_debug.h> |
| 60 | |
| 61 | #include <cam/scsi/scsi_all.h> |
| 62 | #include <cam/scsi/scsi_message.h> |
| 63 | #include <cam/scsi/scsi_sa.h> |
| 64 | |
| 65 | #ifdef _KERNEL |
| 66 | |
| 67 | #include <opt_sa.h> |
| 68 | |
| 69 | #ifndef SA_IO_TIMEOUT |
| 70 | #define SA_IO_TIMEOUT 4 |
| 71 | #endif |
| 72 | #ifndef SA_SPACE_TIMEOUT |
| 73 | #define SA_SPACE_TIMEOUT 1 * 60 |
| 74 | #endif |
| 75 | #ifndef SA_REWIND_TIMEOUT |
| 76 | #define SA_REWIND_TIMEOUT 2 * 60 |
| 77 | #endif |
| 78 | #ifndef SA_ERASE_TIMEOUT |
| 79 | #define SA_ERASE_TIMEOUT 4 * 60 |
| 80 | #endif |
| 81 | |
| 82 | #define SCSIOP_TIMEOUT (60 * 1000) /* not an option */ |
| 83 | |
| 84 | #define IO_TIMEOUT (SA_IO_TIMEOUT * 60 * 1000) |
| 85 | #define REWIND_TIMEOUT (SA_REWIND_TIMEOUT * 60 * 1000) |
| 86 | #define ERASE_TIMEOUT (SA_ERASE_TIMEOUT * 60 * 1000) |
| 87 | #define SPACE_TIMEOUT (SA_SPACE_TIMEOUT * 60 * 1000) |
| 88 | |
| 89 | /* |
| 90 | * Additional options that can be set for config: SA_1FM_AT_EOT |
| 91 | */ |
| 92 | |
| 93 | #ifndef UNUSED_PARAMETER |
| 94 | #define UNUSED_PARAMETER(x) x = x |
| 95 | #endif |
| 96 | |
| 97 | #define QFRLS(ccb) \ |
| 98 | if (((ccb)->ccb_h.status & CAM_DEV_QFRZN) != 0) \ |
| 99 | cam_release_devq((ccb)->ccb_h.path, 0, 0, 0, FALSE) |
| 100 | |
| 101 | /* |
| 102 | * Driver states |
| 103 | */ |
| 104 | |
| 105 | |
| 106 | typedef enum { |
| 107 | SA_STATE_NORMAL, SA_STATE_ABNORMAL |
| 108 | } sa_state; |
| 109 | |
| 110 | #define ccb_pflags ppriv_field0 |
| 111 | #define ccb_bp ppriv_ptr1 |
| 112 | |
| 113 | #define SA_CCB_BUFFER_IO 0x0 |
| 114 | #define SA_CCB_WAITING 0x1 |
| 115 | #define SA_CCB_TYPEMASK 0x1 |
| 116 | #define SA_POSITION_UPDATED 0x2 |
| 117 | |
| 118 | #define Set_CCB_Type(x, type) \ |
| 119 | x->ccb_h.ccb_pflags &= ~SA_CCB_TYPEMASK; \ |
| 120 | x->ccb_h.ccb_pflags |= type |
| 121 | |
| 122 | #define CCB_Type(x) (x->ccb_h.ccb_pflags & SA_CCB_TYPEMASK) |
| 123 | |
| 124 | |
| 125 | |
| 126 | typedef enum { |
| 127 | SA_FLAG_OPEN = 0x0001, |
| 128 | SA_FLAG_FIXED = 0x0002, |
| 129 | SA_FLAG_TAPE_LOCKED = 0x0004, |
| 130 | SA_FLAG_TAPE_MOUNTED = 0x0008, |
| 131 | SA_FLAG_TAPE_WP = 0x0010, |
| 132 | SA_FLAG_TAPE_WRITTEN = 0x0020, |
| 133 | SA_FLAG_EOM_PENDING = 0x0040, |
| 134 | SA_FLAG_EIO_PENDING = 0x0080, |
| 135 | SA_FLAG_EOF_PENDING = 0x0100, |
| 136 | SA_FLAG_ERR_PENDING = (SA_FLAG_EOM_PENDING|SA_FLAG_EIO_PENDING| |
| 137 | SA_FLAG_EOF_PENDING), |
| 138 | SA_FLAG_INVALID = 0x0200, |
| 139 | SA_FLAG_COMP_ENABLED = 0x0400, |
| 140 | SA_FLAG_COMP_SUPP = 0x0800, |
| 141 | SA_FLAG_COMP_UNSUPP = 0x1000, |
| 142 | SA_FLAG_TAPE_FROZEN = 0x2000 |
| 143 | } sa_flags; |
| 144 | |
| 145 | typedef enum { |
| 146 | SA_MODE_REWIND = 0x00, |
| 147 | SA_MODE_NOREWIND = 0x01, |
| 148 | SA_MODE_OFFLINE = 0x02 |
| 149 | } sa_mode; |
| 150 | |
| 151 | typedef enum { |
| 152 | SA_PARAM_NONE = 0x00, |
| 153 | SA_PARAM_BLOCKSIZE = 0x01, |
| 154 | SA_PARAM_DENSITY = 0x02, |
| 155 | SA_PARAM_COMPRESSION = 0x04, |
| 156 | SA_PARAM_BUFF_MODE = 0x08, |
| 157 | SA_PARAM_NUMBLOCKS = 0x10, |
| 158 | SA_PARAM_WP = 0x20, |
| 159 | SA_PARAM_SPEED = 0x40, |
| 160 | SA_PARAM_ALL = 0x7f |
| 161 | } sa_params; |
| 162 | |
| 163 | typedef enum { |
| 164 | SA_QUIRK_NONE = 0x00, |
| 165 | SA_QUIRK_NOCOMP = 0x01, /* Can't deal with compression at all */ |
| 166 | SA_QUIRK_FIXED = 0x02, /* Force fixed mode */ |
| 167 | SA_QUIRK_VARIABLE = 0x04, /* Force variable mode */ |
| 168 | SA_QUIRK_2FM = 0x08, /* Needs Two File Marks at EOD */ |
| 169 | SA_QUIRK_1FM = 0x10, /* No more than 1 File Mark at EOD */ |
| 170 | SA_QUIRK_NODREAD = 0x20, /* Don't try and dummy read density */ |
| 171 | SA_QUIRK_NO_MODESEL = 0x40, /* Don't do mode select at all */ |
| 172 | SA_QUIRK_NO_CPAGE = 0x80 /* Don't use DEVICE COMPRESSION page */ |
| 173 | } sa_quirks; |
| 174 | |
| 175 | /* units are bits 4-7, 16-21 (1024 units) */ |
| 176 | #define SAUNIT(DEV) \ |
| 177 | (((minor(DEV) & 0xF0) >> 4) | ((minor(DEV) & 0x3f0000) >> 16)) |
| 178 | |
| 179 | #define SAMODE(z) ((minor(z) & 0x3)) |
| 180 | #define SADENSITY(z) (((minor(z) >> 2) & 0x3)) |
| 181 | #define SA_IS_CTRL(z) (minor(z) & (1 << 29)) |
| 182 | |
| 183 | #define SA_NOT_CTLDEV 0 |
| 184 | #define SA_CTLDEV 1 |
| 185 | |
| 186 | #define SA_ATYPE_R 0 |
| 187 | #define SA_ATYPE_NR 1 |
| 188 | #define SA_ATYPE_ER 2 |
| 189 | |
| 190 | #define SAMINOR(ctl, unit, mode, access) \ |
| 191 | ((ctl << 29) | ((unit & 0x3f0) << 16) | ((unit & 0xf) << 4) | \ |
| 192 | (mode << 0x2) | (access & 0x3)) |
| 193 | |
| 194 | #define SA_NUM_MODES 4 |
| 195 | struct sa_devs { |
| 196 | dev_t ctl_dev; |
| 197 | struct sa_mode_devs { |
| 198 | dev_t r_dev; |
| 199 | dev_t nr_dev; |
| 200 | dev_t er_dev; |
| 201 | } mode_devs[SA_NUM_MODES]; |
| 202 | dev_t r_dev; |
| 203 | dev_t nr_dev; |
| 204 | dev_t er_dev; |
| 205 | }; |
| 206 | |
| 207 | struct sa_softc { |
| 208 | sa_state state; |
| 209 | sa_flags flags; |
| 210 | sa_quirks quirks; |
| 211 | struct buf_queue_head buf_queue; |
| 212 | int queue_count; |
| 213 | struct devstat device_stats; |
| 214 | struct sa_devs devs; |
| 215 | int blk_gran; |
| 216 | int blk_mask; |
| 217 | int blk_shift; |
| 218 | u_int32_t max_blk; |
| 219 | u_int32_t min_blk; |
| 220 | u_int32_t comp_algorithm; |
| 221 | u_int32_t saved_comp_algorithm; |
| 222 | u_int32_t media_blksize; |
| 223 | u_int32_t last_media_blksize; |
| 224 | u_int32_t media_numblks; |
| 225 | u_int8_t media_density; |
| 226 | u_int8_t speed; |
| 227 | u_int8_t scsi_rev; |
| 228 | u_int8_t dsreg; /* mtio mt_dsreg, redux */ |
| 229 | int buffer_mode; |
| 230 | int filemarks; |
| 231 | union ccb saved_ccb; |
| 232 | int last_resid_was_io; |
| 233 | |
| 234 | /* |
| 235 | * Relative to BOT Location. |
| 236 | */ |
| 237 | daddr_t fileno; |
| 238 | daddr_t blkno; |
| 239 | |
| 240 | /* |
| 241 | * Latched Error Info |
| 242 | */ |
| 243 | struct { |
| 244 | struct scsi_sense_data _last_io_sense; |
| 245 | u_int32_t _last_io_resid; |
| 246 | u_int8_t _last_io_cdb[CAM_MAX_CDBLEN]; |
| 247 | struct scsi_sense_data _last_ctl_sense; |
| 248 | u_int32_t _last_ctl_resid; |
| 249 | u_int8_t _last_ctl_cdb[CAM_MAX_CDBLEN]; |
| 250 | #define last_io_sense errinfo._last_io_sense |
| 251 | #define last_io_resid errinfo._last_io_resid |
| 252 | #define last_io_cdb errinfo._last_io_cdb |
| 253 | #define last_ctl_sense errinfo._last_ctl_sense |
| 254 | #define last_ctl_resid errinfo._last_ctl_resid |
| 255 | #define last_ctl_cdb errinfo._last_ctl_cdb |
| 256 | } errinfo; |
| 257 | /* |
| 258 | * Misc other flags/state |
| 259 | */ |
| 260 | u_int32_t |
| 261 | : 31, |
| 262 | ctrl_mode : 1; /* control device open */ |
| 263 | }; |
| 264 | |
| 265 | struct sa_quirk_entry { |
| 266 | struct scsi_inquiry_pattern inq_pat; /* matching pattern */ |
| 267 | sa_quirks quirks; /* specific quirk type */ |
| 268 | u_int32_t prefblk; /* preferred blocksize when in fixed mode */ |
| 269 | }; |
| 270 | |
| 271 | static struct sa_quirk_entry sa_quirk_table[] = |
| 272 | { |
| 273 | { |
| 274 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "OnStream", |
| 275 | "ADR*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_NODREAD | |
| 276 | SA_QUIRK_1FM|SA_QUIRK_NO_MODESEL, 32768 |
| 277 | }, |
| 278 | { |
| 279 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE", |
| 280 | "Python 06408*", "*"}, SA_QUIRK_NODREAD, 0 |
| 281 | }, |
| 282 | { |
| 283 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE", |
| 284 | "Python 25601*", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_NODREAD, 0 |
| 285 | }, |
| 286 | { |
| 287 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE", |
| 288 | "Python*", "*"}, SA_QUIRK_NODREAD, 0 |
| 289 | }, |
| 290 | { |
| 291 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE", |
| 292 | "VIPER 150*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512 |
| 293 | }, |
| 294 | { |
| 295 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE", |
| 296 | "VIPER 2525 25462", "-011"}, |
| 297 | SA_QUIRK_NOCOMP|SA_QUIRK_1FM|SA_QUIRK_NODREAD, 0 |
| 298 | }, |
| 299 | { |
| 300 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE", |
| 301 | "VIPER 2525*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 1024 |
| 302 | }, |
| 303 | #if 0 |
| 304 | { |
| 305 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP", |
| 306 | "C15*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_NO_CPAGE, 0, |
| 307 | }, |
| 308 | #endif |
| 309 | { |
| 310 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP", |
| 311 | "C56*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0 |
| 312 | }, |
| 313 | { |
| 314 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP", |
| 315 | "T20*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512 |
| 316 | }, |
| 317 | { |
| 318 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP", |
| 319 | "T4000*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512 |
| 320 | }, |
| 321 | { |
| 322 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP", |
| 323 | "HP-88780*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0 |
| 324 | }, |
| 325 | { |
| 326 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "KENNEDY", |
| 327 | "*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0 |
| 328 | }, |
| 329 | { |
| 330 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "M4 DATA", |
| 331 | "123107 SCSI*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0 |
| 332 | }, |
| 333 | { /* jreynold@primenet.com */ |
| 334 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "Seagate", |
| 335 | "STT8000N*", "*"}, SA_QUIRK_1FM, 0 |
| 336 | }, |
| 337 | { /* mike@sentex.net */ |
| 338 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "Seagate", |
| 339 | "STT20000*", "*"}, SA_QUIRK_1FM, 0 |
| 340 | }, |
| 341 | { |
| 342 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG", |
| 343 | " TDC 3600", "U07:"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512 |
| 344 | }, |
| 345 | { |
| 346 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG", |
| 347 | " TDC 3800", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512 |
| 348 | }, |
| 349 | { |
| 350 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG", |
| 351 | " TDC 4100", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512 |
| 352 | }, |
| 353 | { |
| 354 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG", |
| 355 | " TDC 4200", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512 |
| 356 | }, |
| 357 | { |
| 358 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG", |
| 359 | " SLR*", "*"}, SA_QUIRK_1FM, 0 |
| 360 | }, |
| 361 | { |
| 362 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "WANGTEK", |
| 363 | "5525ES*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512 |
| 364 | }, |
| 365 | { |
| 366 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "WANGTEK", |
| 367 | "51000*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 1024 |
| 368 | } |
| 369 | }; |
| 370 | |
| 371 | static d_open_t saopen; |
| 372 | static d_close_t saclose; |
| 373 | static d_strategy_t sastrategy; |
| 374 | static d_ioctl_t saioctl; |
| 375 | static periph_init_t sainit; |
| 376 | static periph_ctor_t saregister; |
| 377 | static periph_oninv_t saoninvalidate; |
| 378 | static periph_dtor_t sacleanup; |
| 379 | static periph_start_t sastart; |
| 380 | static void saasync(void *callback_arg, u_int32_t code, |
| 381 | struct cam_path *path, void *arg); |
| 382 | static void sadone(struct cam_periph *periph, |
| 383 | union ccb *start_ccb); |
| 384 | static int saerror(union ccb *ccb, u_int32_t cam_flags, |
| 385 | u_int32_t sense_flags); |
| 386 | static int samarkswanted(struct cam_periph *); |
| 387 | static int sacheckeod(struct cam_periph *periph); |
| 388 | static int sagetparams(struct cam_periph *periph, |
| 389 | sa_params params_to_get, |
| 390 | u_int32_t *blocksize, u_int8_t *density, |
| 391 | u_int32_t *numblocks, int *buff_mode, |
| 392 | u_int8_t *write_protect, u_int8_t *speed, |
| 393 | int *comp_supported, int *comp_enabled, |
| 394 | u_int32_t *comp_algorithm, |
| 395 | sa_comp_t *comp_page); |
| 396 | static int sasetparams(struct cam_periph *periph, |
| 397 | sa_params params_to_set, |
| 398 | u_int32_t blocksize, u_int8_t density, |
| 399 | u_int32_t comp_algorithm, |
| 400 | u_int32_t sense_flags); |
| 401 | static void saprevent(struct cam_periph *periph, int action); |
| 402 | static int sarewind(struct cam_periph *periph); |
| 403 | static int saspace(struct cam_periph *periph, int count, |
| 404 | scsi_space_code code); |
| 405 | static int samount(struct cam_periph *, int, dev_t); |
| 406 | static int saretension(struct cam_periph *periph); |
| 407 | static int sareservereleaseunit(struct cam_periph *periph, |
| 408 | int reserve); |
| 409 | static int saloadunload(struct cam_periph *periph, int load); |
| 410 | static int saerase(struct cam_periph *periph, int longerase); |
| 411 | static int sawritefilemarks(struct cam_periph *periph, |
| 412 | int nmarks, int setmarks); |
| 413 | static int sardpos(struct cam_periph *periph, int, u_int32_t *); |
| 414 | static int sasetpos(struct cam_periph *periph, int, u_int32_t *); |
| 415 | |
| 416 | |
| 417 | static struct periph_driver sadriver = |
| 418 | { |
| 419 | sainit, "sa", |
| 420 | TAILQ_HEAD_INITIALIZER(sadriver.units), /* generation */ 0 |
| 421 | }; |
| 422 | |
| 423 | DATA_SET(periphdriver_set, sadriver); |
| 424 | |
| 425 | /* For 2.2-stable support */ |
| 426 | #ifndef D_TAPE |
| 427 | #define D_TAPE 0 |
| 428 | #endif |
| 429 | |
| 430 | #define SA_CDEV_MAJOR 14 |
| 431 | |
| 432 | static struct cdevsw sa_cdevsw = { |
| 433 | /* name */ "sa", |
| 434 | /* maj */ SA_CDEV_MAJOR, |
| 435 | /* flags */ D_TAPE, |
| 436 | /* port */ NULL, |
| 437 | /* autoq */ 0, |
| 438 | |
| 439 | /* open */ saopen, |
| 440 | /* close */ saclose, |
| 441 | /* read */ physread, |
| 442 | /* write */ physwrite, |
| 443 | /* ioctl */ saioctl, |
| 444 | /* poll */ nopoll, |
| 445 | /* mmap */ nommap, |
| 446 | /* strategy */ sastrategy, |
| 447 | /* dump */ nodump, |
| 448 | /* psize */ nopsize |
| 449 | }; |
| 450 | |
| 451 | static struct extend_array *saperiphs; |
| 452 | |
| 453 | static int |
| 454 | saopen(dev_t dev, int flags, int fmt, struct thread *td) |
| 455 | { |
| 456 | struct cam_periph *periph; |
| 457 | struct sa_softc *softc; |
| 458 | int unit; |
| 459 | int mode; |
| 460 | int density; |
| 461 | int error; |
| 462 | int s; |
| 463 | |
| 464 | unit = SAUNIT(dev); |
| 465 | mode = SAMODE(dev); |
| 466 | density = SADENSITY(dev); |
| 467 | |
| 468 | s = splsoftcam(); |
| 469 | periph = cam_extend_get(saperiphs, unit); |
| 470 | if (periph == NULL) { |
| 471 | (void) splx(s); |
| 472 | return (ENXIO); |
| 473 | } |
| 474 | softc = (struct sa_softc *)periph->softc; |
| 475 | if ((error = cam_periph_lock(periph, PCATCH)) != 0) { |
| 476 | splx(s); |
| 477 | return (error); |
| 478 | } |
| 479 | splx(s); |
| 480 | |
| 481 | CAM_DEBUG(periph->path, CAM_DEBUG_TRACE|CAM_DEBUG_INFO, |
| 482 | ("saopen(%d): dev=0x%x softc=0x%x\n", unit, unit, softc->flags)); |
| 483 | |
| 484 | if (cam_periph_acquire(periph) != CAM_REQ_CMP) { |
| 485 | cam_periph_unlock(periph); |
| 486 | return (ENXIO); |
| 487 | } |
| 488 | if (SA_IS_CTRL(dev)) { |
| 489 | softc->ctrl_mode = 1; |
| 490 | cam_periph_unlock(periph); |
| 491 | return (0); |
| 492 | } |
| 493 | |
| 494 | |
| 495 | if (softc->flags & SA_FLAG_OPEN) { |
| 496 | error = EBUSY; |
| 497 | } else if (softc->flags & SA_FLAG_INVALID) { |
| 498 | error = ENXIO; |
| 499 | } else { |
| 500 | /* |
| 501 | * The function samount ensures media is loaded and ready. |
| 502 | * It also does a device RESERVE if the tape isn't yet mounted. |
| 503 | */ |
| 504 | error = samount(periph, flags, dev); |
| 505 | } |
| 506 | |
| 507 | if (error) { |
| 508 | cam_periph_release(periph); |
| 509 | } else { |
| 510 | saprevent(periph, PR_PREVENT); |
| 511 | softc->flags |= SA_FLAG_OPEN; |
| 512 | } |
| 513 | cam_periph_unlock(periph); |
| 514 | return (error); |
| 515 | } |
| 516 | |
| 517 | static int |
| 518 | saclose(dev_t dev, int flag, int fmt, struct thread *td) |
| 519 | { |
| 520 | struct cam_periph *periph; |
| 521 | struct sa_softc *softc; |
| 522 | int unit, mode, error, writing, tmp; |
| 523 | int closedbits = SA_FLAG_OPEN; |
| 524 | |
| 525 | unit = SAUNIT(dev); |
| 526 | mode = SAMODE(dev); |
| 527 | periph = cam_extend_get(saperiphs, unit); |
| 528 | if (periph == NULL) |
| 529 | return (ENXIO); |
| 530 | |
| 531 | softc = (struct sa_softc *)periph->softc; |
| 532 | |
| 533 | CAM_DEBUG(periph->path, CAM_DEBUG_TRACE|CAM_DEBUG_INFO, |
| 534 | ("saclose(%d): dev=0x%x softc=0x%x\n", unit, unit, softc->flags)); |
| 535 | |
| 536 | |
| 537 | if ((error = cam_periph_lock(periph, 0)) != 0) { |
| 538 | return (error); |
| 539 | } |
| 540 | |
| 541 | if (SA_IS_CTRL(dev)) { |
| 542 | softc->ctrl_mode = 0; |
| 543 | cam_periph_release(periph); |
| 544 | cam_periph_unlock(periph); |
| 545 | return (0); |
| 546 | } |
| 547 | |
| 548 | /* |
| 549 | * Were we writing the tape? |
| 550 | */ |
| 551 | writing = (softc->flags & SA_FLAG_TAPE_WRITTEN) != 0; |
| 552 | |
| 553 | /* |
| 554 | * See whether or not we need to write filemarks. If this |
| 555 | * fails, we probably have to assume we've lost tape |
| 556 | * position. |
| 557 | */ |
| 558 | error = sacheckeod(periph); |
| 559 | if (error) { |
| 560 | xpt_print_path(periph->path); |
| 561 | printf("failed to write terminating filemark(s)\n"); |
| 562 | softc->flags |= SA_FLAG_TAPE_FROZEN; |
| 563 | } |
| 564 | |
| 565 | /* |
| 566 | * Whatever we end up doing, allow users to eject tapes from here on. |
| 567 | */ |
| 568 | saprevent(periph, PR_ALLOW); |
| 569 | |
| 570 | /* |
| 571 | * Decide how to end... |
| 572 | */ |
| 573 | if ((softc->flags & SA_FLAG_TAPE_MOUNTED) == 0) { |
| 574 | closedbits |= SA_FLAG_TAPE_FROZEN; |
| 575 | } else switch (mode) { |
| 576 | case SA_MODE_OFFLINE: |
| 577 | /* |
| 578 | * An 'offline' close is an unconditional release of |
| 579 | * frozen && mount conditions, irrespective of whether |
| 580 | * these operations succeeded. The reason for this is |
| 581 | * to allow at least some kind of programmatic way |
| 582 | * around our state getting all fouled up. If somebody |
| 583 | * issues an 'offline' command, that will be allowed |
| 584 | * to clear state. |
| 585 | */ |
| 586 | (void) sarewind(periph); |
| 587 | (void) saloadunload(periph, FALSE); |
| 588 | closedbits |= SA_FLAG_TAPE_MOUNTED|SA_FLAG_TAPE_FROZEN; |
| 589 | break; |
| 590 | case SA_MODE_REWIND: |
| 591 | /* |
| 592 | * If the rewind fails, return an error- if anyone cares, |
| 593 | * but not overwriting any previous error. |
| 594 | * |
| 595 | * We don't clear the notion of mounted here, but we do |
| 596 | * clear the notion of frozen if we successfully rewound. |
| 597 | */ |
| 598 | tmp = sarewind(periph); |
| 599 | if (tmp) { |
| 600 | if (error != 0) |
| 601 | error = tmp; |
| 602 | } else { |
| 603 | closedbits |= SA_FLAG_TAPE_FROZEN; |
| 604 | } |
| 605 | break; |
| 606 | case SA_MODE_NOREWIND: |
| 607 | /* |
| 608 | * If we're not rewinding/unloading the tape, find out |
| 609 | * whether we need to back up over one of two filemarks |
| 610 | * we wrote (if we wrote two filemarks) so that appends |
| 611 | * from this point on will be sane. |
| 612 | */ |
| 613 | if (error == 0 && writing && (softc->quirks & SA_QUIRK_2FM)) { |
| 614 | tmp = saspace(periph, -1, SS_FILEMARKS); |
| 615 | if (tmp) { |
| 616 | xpt_print_path(periph->path); |
| 617 | printf("unable to backspace over one of double" |
| 618 | " filemarks at end of tape\n"); |
| 619 | xpt_print_path(periph->path); |
| 620 | printf("it is possible that this device" |
| 621 | " needs a SA_QUIRK_1FM quirk set for it\n"); |
| 622 | softc->flags |= SA_FLAG_TAPE_FROZEN; |
| 623 | } |
| 624 | } |
| 625 | break; |
| 626 | default: |
| 627 | xpt_print_path(periph->path); |
| 628 | panic("unknown mode 0x%x in saclose\n", mode); |
| 629 | /* NOTREACHED */ |
| 630 | break; |
| 631 | } |
| 632 | |
| 633 | /* |
| 634 | * We wish to note here that there are no more filemarks to be written. |
| 635 | */ |
| 636 | softc->filemarks = 0; |
| 637 | softc->flags &= ~SA_FLAG_TAPE_WRITTEN; |
| 638 | |
| 639 | /* |
| 640 | * And we are no longer open for business. |
| 641 | */ |
| 642 | softc->flags &= ~closedbits; |
| 643 | |
| 644 | /* |
| 645 | * Inform users if tape state if frozen.... |
| 646 | */ |
| 647 | if (softc->flags & SA_FLAG_TAPE_FROZEN) { |
| 648 | xpt_print_path(periph->path); |
| 649 | printf("tape is now frozen- use an OFFLINE, REWIND or MTEOM " |
| 650 | "command to clear this state.\n"); |
| 651 | } |
| 652 | |
| 653 | /* release the device if it is no longer mounted */ |
| 654 | if ((softc->flags & SA_FLAG_TAPE_MOUNTED) == 0) |
| 655 | sareservereleaseunit(periph, FALSE); |
| 656 | |
| 657 | cam_periph_unlock(periph); |
| 658 | cam_periph_release(periph); |
| 659 | |
| 660 | return (error); |
| 661 | } |
| 662 | |
| 663 | /* |
| 664 | * Actually translate the requested transfer into one the physical driver |
| 665 | * can understand. The transfer is described by a buf and will include |
| 666 | * only one physical transfer. |
| 667 | */ |
| 668 | static void |
| 669 | sastrategy(struct buf *bp) |
| 670 | { |
| 671 | struct cam_periph *periph; |
| 672 | struct sa_softc *softc; |
| 673 | u_int unit; |
| 674 | int s; |
| 675 | |
| 676 | if (SA_IS_CTRL(bp->b_dev)) { |
| 677 | bp->b_error = EINVAL; |
| 678 | goto bad; |
| 679 | } |
| 680 | unit = SAUNIT(bp->b_dev); |
| 681 | periph = cam_extend_get(saperiphs, unit); |
| 682 | if (periph == NULL) { |
| 683 | bp->b_error = ENXIO; |
| 684 | goto bad; |
| 685 | } |
| 686 | softc = (struct sa_softc *)periph->softc; |
| 687 | |
| 688 | s = splsoftcam(); |
| 689 | |
| 690 | if (softc->flags & SA_FLAG_INVALID) { |
| 691 | splx(s); |
| 692 | bp->b_error = ENXIO; |
| 693 | goto bad; |
| 694 | } |
| 695 | |
| 696 | if (softc->flags & SA_FLAG_TAPE_FROZEN) { |
| 697 | splx(s); |
| 698 | bp->b_error = EPERM; |
| 699 | goto bad; |
| 700 | } |
| 701 | |
| 702 | splx(s); |
| 703 | |
| 704 | /* |
| 705 | * If it's a null transfer, return immediatly |
| 706 | */ |
| 707 | if (bp->b_bcount == 0) |
| 708 | goto done; |
| 709 | |
| 710 | /* valid request? */ |
| 711 | if (softc->flags & SA_FLAG_FIXED) { |
| 712 | /* |
| 713 | * Fixed block device. The byte count must |
| 714 | * be a multiple of our block size. |
| 715 | */ |
| 716 | if (((softc->blk_mask != ~0) && |
| 717 | ((bp->b_bcount & softc->blk_mask) != 0)) || |
| 718 | ((softc->blk_mask == ~0) && |
| 719 | ((bp->b_bcount % softc->min_blk) != 0))) { |
| 720 | xpt_print_path(periph->path); |
| 721 | printf("Invalid request. Fixed block device " |
| 722 | "requests must be a multiple " |
| 723 | "of %d bytes\n", softc->media_blksize); |
| 724 | bp->b_error = EINVAL; |
| 725 | goto bad; |
| 726 | } |
| 727 | } else if ((bp->b_bcount > softc->max_blk) || |
| 728 | (bp->b_bcount < softc->min_blk) || |
| 729 | (bp->b_bcount & softc->blk_mask) != 0) { |
| 730 | |
| 731 | xpt_print_path(periph->path); |
| 732 | printf("Invalid request. Variable block device " |
| 733 | "requests must be "); |
| 734 | if (softc->blk_mask != 0) { |
| 735 | printf("a multiple of %d ", (0x1 << softc->blk_gran)); |
| 736 | } |
| 737 | printf("between %d and %d bytes\n", softc->min_blk, |
| 738 | softc->max_blk); |
| 739 | bp->b_error = EINVAL; |
| 740 | goto bad; |
| 741 | } |
| 742 | |
| 743 | /* |
| 744 | * Mask interrupts so that the device cannot be invalidated until |
| 745 | * after we are in the queue. Otherwise, we might not properly |
| 746 | * clean up one of the buffers. |
| 747 | */ |
| 748 | s = splbio(); |
| 749 | |
| 750 | /* |
| 751 | * Place it at the end of the queue. |
| 752 | */ |
| 753 | bufq_insert_tail(&softc->buf_queue, bp); |
| 754 | |
| 755 | softc->queue_count++; |
| 756 | CAM_DEBUG(periph->path, CAM_DEBUG_INFO, ("sastrategy: enqueuing a %d " |
| 757 | "%s byte %s queue count now %d\n", (int) bp->b_bcount, |
| 758 | (softc->flags & SA_FLAG_FIXED)? "fixed" : "variable", |
| 759 | (bp->b_flags & B_READ)? "read" : "write", softc->queue_count)); |
| 760 | |
| 761 | splx(s); |
| 762 | |
| 763 | /* |
| 764 | * Schedule ourselves for performing the work. |
| 765 | */ |
| 766 | xpt_schedule(periph, 1); |
| 767 | |
| 768 | return; |
| 769 | bad: |
| 770 | bp->b_flags |= B_ERROR; |
| 771 | done: |
| 772 | |
| 773 | /* |
| 774 | * Correctly set the buf to indicate a completed xfer |
| 775 | */ |
| 776 | bp->b_resid = bp->b_bcount; |
| 777 | biodone(bp); |
| 778 | } |
| 779 | |
| 780 | static int |
| 781 | saioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, struct thread *td) |
| 782 | { |
| 783 | struct cam_periph *periph; |
| 784 | struct sa_softc *softc; |
| 785 | scsi_space_code spaceop; |
| 786 | int didlockperiph = 0; |
| 787 | int s; |
| 788 | int unit; |
| 789 | int mode; |
| 790 | int density; |
| 791 | int error = 0; |
| 792 | |
| 793 | unit = SAUNIT(dev); |
| 794 | mode = SAMODE(dev); |
| 795 | density = SADENSITY(dev); |
| 796 | error = 0; /* shut up gcc */ |
| 797 | spaceop = 0; /* shut up gcc */ |
| 798 | |
| 799 | periph = cam_extend_get(saperiphs, unit); |
| 800 | if (periph == NULL) |
| 801 | return (ENXIO); |
| 802 | |
| 803 | softc = (struct sa_softc *)periph->softc; |
| 804 | |
| 805 | /* |
| 806 | * Check for control mode accesses. We allow MTIOCGET and |
| 807 | * MTIOCERRSTAT (but need to be the only one open in order |
| 808 | * to clear latched status), and MTSETBSIZE, MTSETDNSTY |
| 809 | * and MTCOMP (but need to be the only one accessing this |
| 810 | * device to run those). |
| 811 | */ |
| 812 | |
| 813 | if (SA_IS_CTRL(dev)) { |
| 814 | switch (cmd) { |
| 815 | case MTIOCGETEOTMODEL: |
| 816 | case MTIOCGET: |
| 817 | break; |
| 818 | case MTIOCERRSTAT: |
| 819 | /* |
| 820 | * If the periph isn't already locked, lock it |
| 821 | * so our MTIOCERRSTAT can reset latched error stats. |
| 822 | * |
| 823 | * If the periph is already locked, skip it because |
| 824 | * we're just getting status and it'll be up to the |
| 825 | * other thread that has this device open to do |
| 826 | * an MTIOCERRSTAT that would clear latched status. |
| 827 | */ |
| 828 | s = splsoftcam(); |
| 829 | if ((periph->flags & CAM_PERIPH_LOCKED) == 0) { |
| 830 | error = cam_periph_lock(periph, PCATCH); |
| 831 | if (error != 0) { |
| 832 | splx(s); |
| 833 | return (error); |
| 834 | } |
| 835 | didlockperiph = 1; |
| 836 | } |
| 837 | break; |
| 838 | |
| 839 | case MTIOCSETEOTMODEL: |
| 840 | case MTSETBSIZ: |
| 841 | case MTSETDNSTY: |
| 842 | case MTCOMP: |
| 843 | /* |
| 844 | * We need to acquire the peripheral here rather |
| 845 | * than at open time because we are sharing writable |
| 846 | * access to data structures. |
| 847 | */ |
| 848 | s = splsoftcam(); |
| 849 | error = cam_periph_lock(periph, PCATCH); |
| 850 | if (error != 0) { |
| 851 | splx(s); |
| 852 | return (error); |
| 853 | } |
| 854 | didlockperiph = 1; |
| 855 | break; |
| 856 | |
| 857 | default: |
| 858 | return (EINVAL); |
| 859 | } |
| 860 | } |
| 861 | |
| 862 | /* |
| 863 | * Find the device that the user is talking about |
| 864 | */ |
| 865 | switch (cmd) { |
| 866 | case MTIOCGET: |
| 867 | { |
| 868 | struct mtget *g = (struct mtget *)arg; |
| 869 | |
| 870 | /* |
| 871 | * If this isn't the control mode device, actually go out |
| 872 | * and ask the drive again what it's set to. |
| 873 | */ |
| 874 | if (!SA_IS_CTRL(dev)) { |
| 875 | u_int8_t write_protect; |
| 876 | int comp_enabled, comp_supported; |
| 877 | error = sagetparams(periph, SA_PARAM_ALL, |
| 878 | &softc->media_blksize, &softc->media_density, |
| 879 | &softc->media_numblks, &softc->buffer_mode, |
| 880 | &write_protect, &softc->speed, &comp_supported, |
| 881 | &comp_enabled, &softc->comp_algorithm, NULL); |
| 882 | if (error) |
| 883 | break; |
| 884 | if (write_protect) |
| 885 | softc->flags |= SA_FLAG_TAPE_WP; |
| 886 | else |
| 887 | softc->flags &= ~SA_FLAG_TAPE_WP; |
| 888 | softc->flags &= ~(SA_FLAG_COMP_SUPP| |
| 889 | SA_FLAG_COMP_ENABLED|SA_FLAG_COMP_UNSUPP); |
| 890 | if (comp_supported) { |
| 891 | if (softc->saved_comp_algorithm == 0) |
| 892 | softc->saved_comp_algorithm = |
| 893 | softc->comp_algorithm; |
| 894 | softc->flags |= SA_FLAG_COMP_SUPP; |
| 895 | if (comp_enabled) |
| 896 | softc->flags |= SA_FLAG_COMP_ENABLED; |
| 897 | } else |
| 898 | softc->flags |= SA_FLAG_COMP_UNSUPP; |
| 899 | } |
| 900 | bzero(g, sizeof(struct mtget)); |
| 901 | g->mt_type = MT_ISAR; |
| 902 | if (softc->flags & SA_FLAG_COMP_UNSUPP) { |
| 903 | g->mt_comp = MT_COMP_UNSUPP; |
| 904 | g->mt_comp0 = MT_COMP_UNSUPP; |
| 905 | g->mt_comp1 = MT_COMP_UNSUPP; |
| 906 | g->mt_comp2 = MT_COMP_UNSUPP; |
| 907 | g->mt_comp3 = MT_COMP_UNSUPP; |
| 908 | } else { |
| 909 | if ((softc->flags & SA_FLAG_COMP_ENABLED) == 0) { |
| 910 | g->mt_comp = MT_COMP_DISABLED; |
| 911 | } else { |
| 912 | g->mt_comp = softc->comp_algorithm; |
| 913 | } |
| 914 | g->mt_comp0 = softc->comp_algorithm; |
| 915 | g->mt_comp1 = softc->comp_algorithm; |
| 916 | g->mt_comp2 = softc->comp_algorithm; |
| 917 | g->mt_comp3 = softc->comp_algorithm; |
| 918 | } |
| 919 | g->mt_density = softc->media_density; |
| 920 | g->mt_density0 = softc->media_density; |
| 921 | g->mt_density1 = softc->media_density; |
| 922 | g->mt_density2 = softc->media_density; |
| 923 | g->mt_density3 = softc->media_density; |
| 924 | g->mt_blksiz = softc->media_blksize; |
| 925 | g->mt_blksiz0 = softc->media_blksize; |
| 926 | g->mt_blksiz1 = softc->media_blksize; |
| 927 | g->mt_blksiz2 = softc->media_blksize; |
| 928 | g->mt_blksiz3 = softc->media_blksize; |
| 929 | g->mt_fileno = softc->fileno; |
| 930 | g->mt_blkno = softc->blkno; |
| 931 | g->mt_dsreg = (short) softc->dsreg; |
| 932 | /* |
| 933 | * Yes, we know that this is likely to overflow |
| 934 | */ |
| 935 | if (softc->last_resid_was_io) { |
| 936 | if ((g->mt_resid = (short) softc->last_io_resid) != 0) { |
| 937 | if (SA_IS_CTRL(dev) == 0 || didlockperiph) { |
| 938 | softc->last_io_resid = 0; |
| 939 | } |
| 940 | } |
| 941 | } else { |
| 942 | if ((g->mt_resid = (short)softc->last_ctl_resid) != 0) { |
| 943 | if (SA_IS_CTRL(dev) == 0 || didlockperiph) { |
| 944 | softc->last_ctl_resid = 0; |
| 945 | } |
| 946 | } |
| 947 | } |
| 948 | error = 0; |
| 949 | break; |
| 950 | } |
| 951 | case MTIOCERRSTAT: |
| 952 | { |
| 953 | struct scsi_tape_errors *sep = |
| 954 | &((union mterrstat *)arg)->scsi_errstat; |
| 955 | |
| 956 | CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, |
| 957 | ("saioctl: MTIOCERRSTAT\n")); |
| 958 | |
| 959 | bzero(sep, sizeof(*sep)); |
| 960 | sep->io_resid = softc->last_io_resid; |
| 961 | bcopy((caddr_t) &softc->last_io_sense, sep->io_sense, |
| 962 | sizeof (sep->io_sense)); |
| 963 | bcopy((caddr_t) &softc->last_io_cdb, sep->io_cdb, |
| 964 | sizeof (sep->io_cdb)); |
| 965 | sep->ctl_resid = softc->last_ctl_resid; |
| 966 | bcopy((caddr_t) &softc->last_ctl_sense, sep->ctl_sense, |
| 967 | sizeof (sep->ctl_sense)); |
| 968 | bcopy((caddr_t) &softc->last_ctl_cdb, sep->ctl_cdb, |
| 969 | sizeof (sep->ctl_cdb)); |
| 970 | |
| 971 | if (SA_IS_CTRL(dev) == 0 || didlockperiph) |
| 972 | bzero((caddr_t) &softc->errinfo, |
| 973 | sizeof (softc->errinfo)); |
| 974 | error = 0; |
| 975 | break; |
| 976 | } |
| 977 | case MTIOCTOP: |
| 978 | { |
| 979 | struct mtop *mt; |
| 980 | int count; |
| 981 | |
| 982 | mt = (struct mtop *)arg; |
| 983 | |
| 984 | CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, |
| 985 | ("saioctl: op=0x%x count=0x%x\n", |
| 986 | mt->mt_op, mt->mt_count)); |
| 987 | |
| 988 | count = mt->mt_count; |
| 989 | switch (mt->mt_op) { |
| 990 | case MTWEOF: /* write an end-of-file marker */ |
| 991 | /* |
| 992 | * We don't need to clear the SA_FLAG_TAPE_WRITTEN |
| 993 | * flag because by keeping track of filemarks |
| 994 | * we have last written we know ehether or not |
| 995 | * we need to write more when we close the device. |
| 996 | */ |
| 997 | error = sawritefilemarks(periph, count, FALSE); |
| 998 | break; |
| 999 | case MTWSS: /* write a setmark */ |
| 1000 | error = sawritefilemarks(periph, count, TRUE); |
| 1001 | break; |
| 1002 | case MTBSR: /* backward space record */ |
| 1003 | case MTFSR: /* forward space record */ |
| 1004 | case MTBSF: /* backward space file */ |
| 1005 | case MTFSF: /* forward space file */ |
| 1006 | case MTBSS: /* backward space setmark */ |
| 1007 | case MTFSS: /* forward space setmark */ |
| 1008 | case MTEOD: /* space to end of recorded medium */ |
| 1009 | { |
| 1010 | int nmarks; |
| 1011 | |
| 1012 | spaceop = SS_FILEMARKS; |
| 1013 | nmarks = softc->filemarks; |
| 1014 | error = sacheckeod(periph); |
| 1015 | if (error) { |
| 1016 | xpt_print_path(periph->path); |
| 1017 | printf("EOD check prior to spacing failed\n"); |
| 1018 | softc->flags |= SA_FLAG_EIO_PENDING; |
| 1019 | break; |
| 1020 | } |
| 1021 | nmarks -= softc->filemarks; |
| 1022 | switch(mt->mt_op) { |
| 1023 | case MTBSR: |
| 1024 | count = -count; |
| 1025 | /* FALLTHROUGH */ |
| 1026 | case MTFSR: |
| 1027 | spaceop = SS_BLOCKS; |
| 1028 | break; |
| 1029 | case MTBSF: |
| 1030 | count = -count; |
| 1031 | /* FALLTHROUGH */ |
| 1032 | case MTFSF: |
| 1033 | break; |
| 1034 | case MTBSS: |
| 1035 | count = -count; |
| 1036 | /* FALLTHROUGH */ |
| 1037 | case MTFSS: |
| 1038 | spaceop = SS_SETMARKS; |
| 1039 | break; |
| 1040 | case MTEOD: |
| 1041 | spaceop = SS_EOD; |
| 1042 | count = 0; |
| 1043 | nmarks = 0; |
| 1044 | break; |
| 1045 | default: |
| 1046 | error = EINVAL; |
| 1047 | break; |
| 1048 | } |
| 1049 | if (error) |
| 1050 | break; |
| 1051 | |
| 1052 | nmarks = softc->filemarks; |
| 1053 | /* |
| 1054 | * XXX: Why are we checking again? |
| 1055 | */ |
| 1056 | error = sacheckeod(periph); |
| 1057 | if (error) |
| 1058 | break; |
| 1059 | nmarks -= softc->filemarks; |
| 1060 | error = saspace(periph, count - nmarks, spaceop); |
| 1061 | /* |
| 1062 | * At this point, clear that we've written the tape |
| 1063 | * and that we've written any filemarks. We really |
| 1064 | * don't know what the applications wishes to do next- |
| 1065 | * the sacheckeod's will make sure we terminated the |
| 1066 | * tape correctly if we'd been writing, but the next |
| 1067 | * action the user application takes will set again |
| 1068 | * whether we need to write filemarks. |
| 1069 | */ |
| 1070 | softc->flags &= |
| 1071 | ~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN); |
| 1072 | softc->filemarks = 0; |
| 1073 | break; |
| 1074 | } |
| 1075 | case MTREW: /* rewind */ |
| 1076 | (void) sacheckeod(periph); |
| 1077 | error = sarewind(periph); |
| 1078 | /* see above */ |
| 1079 | softc->flags &= |
| 1080 | ~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN); |
| 1081 | softc->flags &= ~SA_FLAG_ERR_PENDING; |
| 1082 | softc->filemarks = 0; |
| 1083 | break; |
| 1084 | case MTERASE: /* erase */ |
| 1085 | error = saerase(periph, count); |
| 1086 | softc->flags &= |
| 1087 | ~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN); |
| 1088 | softc->flags &= ~SA_FLAG_ERR_PENDING; |
| 1089 | break; |
| 1090 | case MTRETENS: /* re-tension tape */ |
| 1091 | error = saretension(periph); |
| 1092 | softc->flags &= |
| 1093 | ~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN); |
| 1094 | softc->flags &= ~SA_FLAG_ERR_PENDING; |
| 1095 | break; |
| 1096 | case MTOFFL: /* rewind and put the drive offline */ |
| 1097 | |
| 1098 | (void) sacheckeod(periph); |
| 1099 | /* see above */ |
| 1100 | softc->flags &= ~SA_FLAG_TAPE_WRITTEN; |
| 1101 | softc->filemarks = 0; |
| 1102 | |
| 1103 | error = sarewind(periph); |
| 1104 | /* clear the frozen flag anyway */ |
| 1105 | softc->flags &= ~SA_FLAG_TAPE_FROZEN; |
| 1106 | |
| 1107 | /* |
| 1108 | * Be sure to allow media removal before ejecting. |
| 1109 | */ |
| 1110 | |
| 1111 | saprevent(periph, PR_ALLOW); |
| 1112 | if (error == 0) { |
| 1113 | error = saloadunload(periph, FALSE); |
| 1114 | if (error == 0) { |
| 1115 | softc->flags &= ~SA_FLAG_TAPE_MOUNTED; |
| 1116 | } |
| 1117 | } |
| 1118 | break; |
| 1119 | |
| 1120 | case MTNOP: /* no operation, sets status only */ |
| 1121 | case MTCACHE: /* enable controller cache */ |
| 1122 | case MTNOCACHE: /* disable controller cache */ |
| 1123 | error = 0; |
| 1124 | break; |
| 1125 | |
| 1126 | case MTSETBSIZ: /* Set block size for device */ |
| 1127 | |
| 1128 | error = sasetparams(periph, SA_PARAM_BLOCKSIZE, count, |
| 1129 | 0, 0, 0); |
| 1130 | if (error == 0) { |
| 1131 | softc->last_media_blksize = |
| 1132 | softc->media_blksize; |
| 1133 | softc->media_blksize = count; |
| 1134 | if (count) { |
| 1135 | softc->flags |= SA_FLAG_FIXED; |
| 1136 | if (powerof2(count)) { |
| 1137 | softc->blk_shift = |
| 1138 | ffs(count) - 1; |
| 1139 | softc->blk_mask = count - 1; |
| 1140 | } else { |
| 1141 | softc->blk_mask = ~0; |
| 1142 | softc->blk_shift = 0; |
| 1143 | } |
| 1144 | /* |
| 1145 | * Make the user's desire 'persistent'. |
| 1146 | */ |
| 1147 | softc->quirks &= ~SA_QUIRK_VARIABLE; |
| 1148 | softc->quirks |= SA_QUIRK_FIXED; |
| 1149 | } else { |
| 1150 | softc->flags &= ~SA_FLAG_FIXED; |
| 1151 | if (softc->max_blk == 0) { |
| 1152 | softc->max_blk = ~0; |
| 1153 | } |
| 1154 | softc->blk_shift = 0; |
| 1155 | if (softc->blk_gran != 0) { |
| 1156 | softc->blk_mask = |
| 1157 | softc->blk_gran - 1; |
| 1158 | } else { |
| 1159 | softc->blk_mask = 0; |
| 1160 | } |
| 1161 | /* |
| 1162 | * Make the user's desire 'persistent'. |
| 1163 | */ |
| 1164 | softc->quirks |= SA_QUIRK_VARIABLE; |
| 1165 | softc->quirks &= ~SA_QUIRK_FIXED; |
| 1166 | } |
| 1167 | } |
| 1168 | break; |
| 1169 | case MTSETDNSTY: /* Set density for device and mode */ |
| 1170 | if (count > UCHAR_MAX) { |
| 1171 | error = EINVAL; |
| 1172 | break; |
| 1173 | } else { |
| 1174 | error = sasetparams(periph, SA_PARAM_DENSITY, |
| 1175 | 0, count, 0, 0); |
| 1176 | } |
| 1177 | break; |
| 1178 | case MTCOMP: /* enable compression */ |
| 1179 | /* |
| 1180 | * Some devices don't support compression, and |
| 1181 | * don't like it if you ask them for the |
| 1182 | * compression page. |
| 1183 | */ |
| 1184 | if ((softc->quirks & SA_QUIRK_NOCOMP) || |
| 1185 | (softc->flags & SA_FLAG_COMP_UNSUPP)) { |
| 1186 | error = ENODEV; |
| 1187 | break; |
| 1188 | } |
| 1189 | error = sasetparams(periph, SA_PARAM_COMPRESSION, |
| 1190 | 0, 0, count, SF_NO_PRINT); |
| 1191 | break; |
| 1192 | default: |
| 1193 | error = EINVAL; |
| 1194 | } |
| 1195 | break; |
| 1196 | } |
| 1197 | case MTIOCIEOT: |
| 1198 | case MTIOCEEOT: |
| 1199 | error = 0; |
| 1200 | break; |
| 1201 | case MTIOCRDSPOS: |
| 1202 | error = sardpos(periph, 0, (u_int32_t *) arg); |
| 1203 | break; |
| 1204 | case MTIOCRDHPOS: |
| 1205 | error = sardpos(periph, 1, (u_int32_t *) arg); |
| 1206 | break; |
| 1207 | case MTIOCSLOCATE: |
| 1208 | error = sasetpos(periph, 0, (u_int32_t *) arg); |
| 1209 | break; |
| 1210 | case MTIOCHLOCATE: |
| 1211 | error = sasetpos(periph, 1, (u_int32_t *) arg); |
| 1212 | break; |
| 1213 | case MTIOCGETEOTMODEL: |
| 1214 | error = 0; |
| 1215 | if (softc->quirks & SA_QUIRK_1FM) |
| 1216 | mode = 1; |
| 1217 | else |
| 1218 | mode = 2; |
| 1219 | *((u_int32_t *) arg) = mode; |
| 1220 | break; |
| 1221 | case MTIOCSETEOTMODEL: |
| 1222 | error = 0; |
| 1223 | switch (*((u_int32_t *) arg)) { |
| 1224 | case 1: |
| 1225 | softc->quirks &= ~SA_QUIRK_2FM; |
| 1226 | softc->quirks |= SA_QUIRK_1FM; |
| 1227 | break; |
| 1228 | case 2: |
| 1229 | softc->quirks &= ~SA_QUIRK_1FM; |
| 1230 | softc->quirks |= SA_QUIRK_2FM; |
| 1231 | break; |
| 1232 | default: |
| 1233 | error = EINVAL; |
| 1234 | break; |
| 1235 | } |
| 1236 | break; |
| 1237 | default: |
| 1238 | error = cam_periph_ioctl(periph, cmd, arg, saerror); |
| 1239 | break; |
| 1240 | } |
| 1241 | |
| 1242 | /* |
| 1243 | * Check to see if we cleared a frozen state |
| 1244 | */ |
| 1245 | if (error == 0 && (softc->flags & SA_FLAG_TAPE_FROZEN)) { |
| 1246 | switch(cmd) { |
| 1247 | case MTIOCRDSPOS: |
| 1248 | case MTIOCRDHPOS: |
| 1249 | case MTIOCSLOCATE: |
| 1250 | case MTIOCHLOCATE: |
| 1251 | softc->fileno = (daddr_t) -1; |
| 1252 | softc->blkno = (daddr_t) -1; |
| 1253 | softc->flags &= ~SA_FLAG_TAPE_FROZEN; |
| 1254 | xpt_print_path(periph->path); |
| 1255 | printf("tape state now unfrozen.\n"); |
| 1256 | break; |
| 1257 | default: |
| 1258 | break; |
| 1259 | } |
| 1260 | } |
| 1261 | if (didlockperiph) { |
| 1262 | cam_periph_unlock(periph); |
| 1263 | } |
| 1264 | return (error); |
| 1265 | } |
| 1266 | |
| 1267 | static void |
| 1268 | sainit(void) |
| 1269 | { |
| 1270 | cam_status status; |
| 1271 | struct cam_path *path; |
| 1272 | |
| 1273 | /* |
| 1274 | * Create our extend array for storing the devices we attach to. |
| 1275 | */ |
| 1276 | saperiphs = cam_extend_new(); |
| 1277 | if (saperiphs == NULL) { |
| 1278 | printf("sa: Failed to alloc extend array!\n"); |
| 1279 | return; |
| 1280 | } |
| 1281 | |
| 1282 | /* |
| 1283 | * Install a global async callback. |
| 1284 | */ |
| 1285 | status = xpt_create_path(&path, NULL, CAM_XPT_PATH_ID, |
| 1286 | CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); |
| 1287 | |
| 1288 | if (status == CAM_REQ_CMP) { |
| 1289 | /* Register the async callbacks of interrest */ |
| 1290 | struct ccb_setasync csa; /* |
| 1291 | * This is an immediate CCB, |
| 1292 | * so using the stack is OK |
| 1293 | */ |
| 1294 | xpt_setup_ccb(&csa.ccb_h, path, 5); |
| 1295 | csa.ccb_h.func_code = XPT_SASYNC_CB; |
| 1296 | csa.event_enable = AC_FOUND_DEVICE; |
| 1297 | csa.callback = saasync; |
| 1298 | csa.callback_arg = NULL; |
| 1299 | xpt_action((union ccb *)&csa); |
| 1300 | status = csa.ccb_h.status; |
| 1301 | xpt_free_path(path); |
| 1302 | } |
| 1303 | |
| 1304 | if (status != CAM_REQ_CMP) { |
| 1305 | printf("sa: Failed to attach master async callback " |
| 1306 | "due to status 0x%x!\n", status); |
| 1307 | } |
| 1308 | } |
| 1309 | |
| 1310 | static void |
| 1311 | saoninvalidate(struct cam_periph *periph) |
| 1312 | { |
| 1313 | struct sa_softc *softc; |
| 1314 | struct buf *q_bp; |
| 1315 | struct ccb_setasync csa; |
| 1316 | int s; |
| 1317 | |
| 1318 | softc = (struct sa_softc *)periph->softc; |
| 1319 | |
| 1320 | /* |
| 1321 | * De-register any async callbacks. |
| 1322 | */ |
| 1323 | xpt_setup_ccb(&csa.ccb_h, periph->path, |
| 1324 | /* priority */ 5); |
| 1325 | csa.ccb_h.func_code = XPT_SASYNC_CB; |
| 1326 | csa.event_enable = 0; |
| 1327 | csa.callback = saasync; |
| 1328 | csa.callback_arg = periph; |
| 1329 | xpt_action((union ccb *)&csa); |
| 1330 | |
| 1331 | softc->flags |= SA_FLAG_INVALID; |
| 1332 | |
| 1333 | /* |
| 1334 | * Although the oninvalidate() routines are always called at |
| 1335 | * splsoftcam, we need to be at splbio() here to keep the buffer |
| 1336 | * queue from being modified while we traverse it. |
| 1337 | */ |
| 1338 | s = splbio(); |
| 1339 | |
| 1340 | /* |
| 1341 | * Return all queued I/O with ENXIO. |
| 1342 | * XXX Handle any transactions queued to the card |
| 1343 | * with XPT_ABORT_CCB. |
| 1344 | */ |
| 1345 | while ((q_bp = bufq_first(&softc->buf_queue)) != NULL){ |
| 1346 | bufq_remove(&softc->buf_queue, q_bp); |
| 1347 | q_bp->b_resid = q_bp->b_bcount; |
| 1348 | q_bp->b_error = ENXIO; |
| 1349 | q_bp->b_flags |= B_ERROR; |
| 1350 | biodone(q_bp); |
| 1351 | } |
| 1352 | softc->queue_count = 0; |
| 1353 | splx(s); |
| 1354 | |
| 1355 | xpt_print_path(periph->path); |
| 1356 | printf("lost device\n"); |
| 1357 | |
| 1358 | } |
| 1359 | |
| 1360 | static void |
| 1361 | sacleanup(struct cam_periph *periph) |
| 1362 | { |
| 1363 | struct sa_softc *softc; |
| 1364 | int i; |
| 1365 | |
| 1366 | softc = (struct sa_softc *)periph->softc; |
| 1367 | |
| 1368 | devstat_remove_entry(&softc->device_stats); |
| 1369 | |
| 1370 | destroy_dev(softc->devs.ctl_dev); |
| 1371 | destroy_dev(softc->devs.r_dev); |
| 1372 | destroy_dev(softc->devs.nr_dev); |
| 1373 | destroy_dev(softc->devs.er_dev); |
| 1374 | |
| 1375 | for (i = 0; i < SA_NUM_MODES; i++) { |
| 1376 | destroy_dev(softc->devs.mode_devs[i].r_dev); |
| 1377 | destroy_dev(softc->devs.mode_devs[i].nr_dev); |
| 1378 | destroy_dev(softc->devs.mode_devs[i].er_dev); |
| 1379 | } |
| 1380 | |
| 1381 | cam_extend_release(saperiphs, periph->unit_number); |
| 1382 | xpt_print_path(periph->path); |
| 1383 | printf("removing device entry\n"); |
| 1384 | free(softc, M_DEVBUF); |
| 1385 | } |
| 1386 | |
| 1387 | static void |
| 1388 | saasync(void *callback_arg, u_int32_t code, |
| 1389 | struct cam_path *path, void *arg) |
| 1390 | { |
| 1391 | struct cam_periph *periph; |
| 1392 | |
| 1393 | periph = (struct cam_periph *)callback_arg; |
| 1394 | switch (code) { |
| 1395 | case AC_FOUND_DEVICE: |
| 1396 | { |
| 1397 | struct ccb_getdev *cgd; |
| 1398 | cam_status status; |
| 1399 | |
| 1400 | cgd = (struct ccb_getdev *)arg; |
| 1401 | if (cgd == NULL) |
| 1402 | break; |
| 1403 | |
| 1404 | if (SID_TYPE(&cgd->inq_data) != T_SEQUENTIAL) |
| 1405 | break; |
| 1406 | |
| 1407 | /* |
| 1408 | * Allocate a peripheral instance for |
| 1409 | * this device and start the probe |
| 1410 | * process. |
| 1411 | */ |
| 1412 | status = cam_periph_alloc(saregister, saoninvalidate, |
| 1413 | sacleanup, sastart, |
| 1414 | "sa", CAM_PERIPH_BIO, cgd->ccb_h.path, |
| 1415 | saasync, AC_FOUND_DEVICE, cgd); |
| 1416 | |
| 1417 | if (status != CAM_REQ_CMP |
| 1418 | && status != CAM_REQ_INPROG) |
| 1419 | printf("saasync: Unable to probe new device " |
| 1420 | "due to status 0x%x\n", status); |
| 1421 | break; |
| 1422 | } |
| 1423 | default: |
| 1424 | cam_periph_async(periph, code, path, arg); |
| 1425 | break; |
| 1426 | } |
| 1427 | } |
| 1428 | |
| 1429 | static cam_status |
| 1430 | saregister(struct cam_periph *periph, void *arg) |
| 1431 | { |
| 1432 | struct sa_softc *softc; |
| 1433 | struct ccb_setasync csa; |
| 1434 | struct ccb_getdev *cgd; |
| 1435 | caddr_t match; |
| 1436 | int i; |
| 1437 | |
| 1438 | cgd = (struct ccb_getdev *)arg; |
| 1439 | if (periph == NULL) { |
| 1440 | printf("saregister: periph was NULL!!\n"); |
| 1441 | return (CAM_REQ_CMP_ERR); |
| 1442 | } |
| 1443 | |
| 1444 | if (cgd == NULL) { |
| 1445 | printf("saregister: no getdev CCB, can't register device\n"); |
| 1446 | return (CAM_REQ_CMP_ERR); |
| 1447 | } |
| 1448 | |
| 1449 | softc = (struct sa_softc *)malloc(sizeof (*softc), M_DEVBUF, M_NOWAIT); |
| 1450 | if (softc == NULL) { |
| 1451 | printf("saregister: Unable to probe new device. " |
| 1452 | "Unable to allocate softc\n"); |
| 1453 | return (CAM_REQ_CMP_ERR); |
| 1454 | } |
| 1455 | |
| 1456 | bzero(softc, sizeof(*softc)); |
| 1457 | softc->scsi_rev = SID_ANSI_REV(&cgd->inq_data); |
| 1458 | softc->state = SA_STATE_NORMAL; |
| 1459 | softc->fileno = (daddr_t) -1; |
| 1460 | softc->blkno = (daddr_t) -1; |
| 1461 | |
| 1462 | bufq_init(&softc->buf_queue); |
| 1463 | periph->softc = softc; |
| 1464 | cam_extend_set(saperiphs, periph->unit_number, periph); |
| 1465 | |
| 1466 | /* |
| 1467 | * See if this device has any quirks. |
| 1468 | */ |
| 1469 | match = cam_quirkmatch((caddr_t)&cgd->inq_data, |
| 1470 | (caddr_t)sa_quirk_table, |
| 1471 | sizeof(sa_quirk_table)/sizeof(*sa_quirk_table), |
| 1472 | sizeof(*sa_quirk_table), scsi_inquiry_match); |
| 1473 | |
| 1474 | if (match != NULL) { |
| 1475 | softc->quirks = ((struct sa_quirk_entry *)match)->quirks; |
| 1476 | softc->last_media_blksize = |
| 1477 | ((struct sa_quirk_entry *)match)->prefblk; |
| 1478 | #ifdef CAMDEBUG |
| 1479 | xpt_print_path(periph->path); |
| 1480 | printf("found quirk entry %d\n", (int) |
| 1481 | (((struct sa_quirk_entry *) match) - sa_quirk_table)); |
| 1482 | #endif |
| 1483 | } else |
| 1484 | softc->quirks = SA_QUIRK_NONE; |
| 1485 | |
| 1486 | /* |
| 1487 | * The SA driver supports a blocksize, but we don't know the |
| 1488 | * blocksize until we media is inserted. So, set a flag to |
| 1489 | * indicate that the blocksize is unavailable right now. |
| 1490 | */ |
| 1491 | devstat_add_entry(&softc->device_stats, "sa", periph->unit_number, 0, |
| 1492 | DEVSTAT_BS_UNAVAILABLE, SID_TYPE(&cgd->inq_data) | |
| 1493 | DEVSTAT_TYPE_IF_SCSI, DEVSTAT_PRIORITY_TAPE); |
| 1494 | |
| 1495 | softc->devs.ctl_dev = make_dev(&sa_cdevsw, SAMINOR(SA_CTLDEV, |
| 1496 | periph->unit_number, 0, SA_ATYPE_R), UID_ROOT, GID_OPERATOR, |
| 1497 | 0660, "r%s%d.ctl", periph->periph_name, periph->unit_number); |
| 1498 | |
| 1499 | softc->devs.r_dev = make_dev(&sa_cdevsw, SAMINOR(SA_NOT_CTLDEV, |
| 1500 | periph->unit_number, 0, SA_ATYPE_R), UID_ROOT, GID_OPERATOR, |
| 1501 | 0660, "r%s%d", periph->periph_name, periph->unit_number); |
| 1502 | |
| 1503 | softc->devs.nr_dev = make_dev(&sa_cdevsw, SAMINOR(SA_NOT_CTLDEV, |
| 1504 | periph->unit_number, 0, SA_ATYPE_NR), UID_ROOT, GID_OPERATOR, |
| 1505 | 0660, "nr%s%d", periph->periph_name, periph->unit_number); |
| 1506 | |
| 1507 | softc->devs.er_dev = make_dev(&sa_cdevsw, SAMINOR(SA_NOT_CTLDEV, |
| 1508 | periph->unit_number, 0, SA_ATYPE_ER), UID_ROOT, GID_OPERATOR, |
| 1509 | 0660, "er%s%d", periph->periph_name, periph->unit_number); |
| 1510 | |
| 1511 | for (i = 0; i < SA_NUM_MODES; i++) { |
| 1512 | |
| 1513 | softc->devs.mode_devs[i].r_dev = make_dev(&sa_cdevsw, |
| 1514 | SAMINOR(SA_NOT_CTLDEV, periph->unit_number, i, SA_ATYPE_R), |
| 1515 | UID_ROOT, GID_OPERATOR, 0660, "r%s%d.%d", |
| 1516 | periph->periph_name, periph->unit_number, i); |
| 1517 | |
| 1518 | softc->devs.mode_devs[i].nr_dev = make_dev(&sa_cdevsw, |
| 1519 | SAMINOR(SA_NOT_CTLDEV, periph->unit_number, i, SA_ATYPE_NR), |
| 1520 | UID_ROOT, GID_OPERATOR, 0660, "nr%s%d.%d", |
| 1521 | periph->periph_name, periph->unit_number, i); |
| 1522 | |
| 1523 | |
| 1524 | softc->devs.mode_devs[i].er_dev = make_dev(&sa_cdevsw, |
| 1525 | SAMINOR(SA_NOT_CTLDEV, periph->unit_number, i, SA_ATYPE_ER), |
| 1526 | UID_ROOT, GID_OPERATOR, 0660, "er%s%d.%d", |
| 1527 | periph->periph_name, periph->unit_number, i); |
| 1528 | } |
| 1529 | |
| 1530 | /* |
| 1531 | * Add an async callback so that we get |
| 1532 | * notified if this device goes away. |
| 1533 | */ |
| 1534 | xpt_setup_ccb(&csa.ccb_h, periph->path, /* priority */ 5); |
| 1535 | csa.ccb_h.func_code = XPT_SASYNC_CB; |
| 1536 | csa.event_enable = AC_LOST_DEVICE; |
| 1537 | csa.callback = saasync; |
| 1538 | csa.callback_arg = periph; |
| 1539 | xpt_action((union ccb *)&csa); |
| 1540 | |
| 1541 | xpt_announce_periph(periph, NULL); |
| 1542 | |
| 1543 | return (CAM_REQ_CMP); |
| 1544 | } |
| 1545 | |
| 1546 | static void |
| 1547 | sastart(struct cam_periph *periph, union ccb *start_ccb) |
| 1548 | { |
| 1549 | struct sa_softc *softc; |
| 1550 | |
| 1551 | softc = (struct sa_softc *)periph->softc; |
| 1552 | |
| 1553 | CAM_DEBUG(periph->path, CAM_DEBUG_INFO, ("sastart")); |
| 1554 | |
| 1555 | |
| 1556 | switch (softc->state) { |
| 1557 | case SA_STATE_NORMAL: |
| 1558 | { |
| 1559 | /* Pull a buffer from the queue and get going on it */ |
| 1560 | struct buf *bp; |
| 1561 | int s; |
| 1562 | |
| 1563 | /* |
| 1564 | * See if there is a buf with work for us to do.. |
| 1565 | */ |
| 1566 | s = splbio(); |
| 1567 | bp = bufq_first(&softc->buf_queue); |
| 1568 | if (periph->immediate_priority <= periph->pinfo.priority) { |
| 1569 | CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE, |
| 1570 | ("queuing for immediate ccb\n")); |
| 1571 | Set_CCB_Type(start_ccb, SA_CCB_WAITING); |
| 1572 | SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, |
| 1573 | periph_links.sle); |
| 1574 | periph->immediate_priority = CAM_PRIORITY_NONE; |
| 1575 | splx(s); |
| 1576 | wakeup(&periph->ccb_list); |
| 1577 | } else if (bp == NULL) { |
| 1578 | splx(s); |
| 1579 | xpt_release_ccb(start_ccb); |
| 1580 | } else if ((softc->flags & SA_FLAG_ERR_PENDING) != 0) { |
| 1581 | struct buf *done_bp; |
| 1582 | again: |
| 1583 | softc->queue_count--; |
| 1584 | bufq_remove(&softc->buf_queue, bp); |
| 1585 | bp->b_resid = bp->b_bcount; |
| 1586 | done_bp = bp; |
| 1587 | if ((softc->flags & SA_FLAG_EOM_PENDING) != 0) { |
| 1588 | /* |
| 1589 | * We now just clear errors in this case |
| 1590 | * and let the residual be the notifier. |
| 1591 | */ |
| 1592 | bp->b_error = 0; |
| 1593 | } else if ((softc->flags & SA_FLAG_EOF_PENDING) != 0) { |
| 1594 | /* |
| 1595 | * This can only happen if we're reading |
| 1596 | * in fixed length mode. In this case, |
| 1597 | * we dump the rest of the list the |
| 1598 | * same way. |
| 1599 | */ |
| 1600 | bp->b_error = 0; |
| 1601 | if (bufq_first(&softc->buf_queue) != NULL) { |
| 1602 | biodone(done_bp); |
| 1603 | goto again; |
| 1604 | } |
| 1605 | } else if ((softc->flags & SA_FLAG_EIO_PENDING) != 0) { |
| 1606 | bp->b_error = EIO; |
| 1607 | bp->b_flags |= B_ERROR; |
| 1608 | } |
| 1609 | bp = bufq_first(&softc->buf_queue); |
| 1610 | /* |
| 1611 | * Only if we have no other buffers queued up |
| 1612 | * do we clear the pending error flag. |
| 1613 | */ |
| 1614 | if (bp == NULL) |
| 1615 | softc->flags &= ~SA_FLAG_ERR_PENDING; |
| 1616 | CAM_DEBUG(periph->path, CAM_DEBUG_INFO, |
| 1617 | ("sastart- ERR_PENDING now 0x%x, bp is %sNULL, " |
| 1618 | "%d more buffers queued up\n", |
| 1619 | (softc->flags & SA_FLAG_ERR_PENDING), |
| 1620 | (bp != NULL)? "not " : " ", softc->queue_count)); |
| 1621 | splx(s); |
| 1622 | xpt_release_ccb(start_ccb); |
| 1623 | biodone(done_bp); |
| 1624 | } else { |
| 1625 | u_int32_t length; |
| 1626 | |
| 1627 | bufq_remove(&softc->buf_queue, bp); |
| 1628 | softc->queue_count--; |
| 1629 | |
| 1630 | if ((softc->flags & SA_FLAG_FIXED) != 0) { |
| 1631 | if (softc->blk_shift != 0) { |
| 1632 | length = |
| 1633 | bp->b_bcount >> softc->blk_shift; |
| 1634 | } else if (softc->media_blksize != 0) { |
| 1635 | length = |
| 1636 | bp->b_bcount / softc->media_blksize; |
| 1637 | } else { |
| 1638 | bp->b_error = EIO; |
| 1639 | xpt_print_path(periph->path); |
| 1640 | printf("zero blocksize for " |
| 1641 | "FIXED length writes?\n"); |
| 1642 | splx(s); |
| 1643 | biodone(bp); |
| 1644 | break; |
| 1645 | } |
| 1646 | CAM_DEBUG(periph->path, CAM_DEBUG_INFO, |
| 1647 | ("Fixed Record Count is %d\n", length)); |
| 1648 | } else { |
| 1649 | length = bp->b_bcount; |
| 1650 | CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_INFO, |
| 1651 | ("Variable Record Count is %d\n", length)); |
| 1652 | } |
| 1653 | devstat_start_transaction(&softc->device_stats); |
| 1654 | /* |
| 1655 | * Some people have theorized that we should |
| 1656 | * suppress illegal length indication if we are |
| 1657 | * running in variable block mode so that we don't |
| 1658 | * have to request sense every time our requested |
| 1659 | * block size is larger than the written block. |
| 1660 | * The residual information from the ccb allows |
| 1661 | * us to identify this situation anyway. The only |
| 1662 | * problem with this is that we will not get |
| 1663 | * information about blocks that are larger than |
| 1664 | * our read buffer unless we set the block size |
| 1665 | * in the mode page to something other than 0. |
| 1666 | * |
| 1667 | * I believe that this is a non-issue. If user apps |
| 1668 | * don't adjust their read size to match our record |
| 1669 | * size, that's just life. Anyway, the typical usage |
| 1670 | * would be to issue, e.g., 64KB reads and occasionally |
| 1671 | * have to do deal with 512 byte or 1KB intermediate |
| 1672 | * records. |
| 1673 | */ |
| 1674 | softc->dsreg = (bp->b_flags & B_READ)? |
| 1675 | MTIO_DSREG_RD : MTIO_DSREG_WR; |
| 1676 | scsi_sa_read_write(&start_ccb->csio, 0, sadone, |
| 1677 | MSG_SIMPLE_Q_TAG, (bp->b_flags & B_READ) != 0, |
| 1678 | FALSE, (softc->flags & SA_FLAG_FIXED) != 0, |
| 1679 | length, bp->b_data, bp->b_bcount, SSD_FULL_SIZE, |
| 1680 | IO_TIMEOUT); |
| 1681 | start_ccb->ccb_h.ccb_pflags &= ~SA_POSITION_UPDATED; |
| 1682 | Set_CCB_Type(start_ccb, SA_CCB_BUFFER_IO); |
| 1683 | start_ccb->ccb_h.ccb_bp = bp; |
| 1684 | bp = bufq_first(&softc->buf_queue); |
| 1685 | splx(s); |
| 1686 | xpt_action(start_ccb); |
| 1687 | } |
| 1688 | |
| 1689 | if (bp != NULL) { |
| 1690 | /* Have more work to do, so ensure we stay scheduled */ |
| 1691 | xpt_schedule(periph, 1); |
| 1692 | } |
| 1693 | break; |
| 1694 | } |
| 1695 | case SA_STATE_ABNORMAL: |
| 1696 | default: |
| 1697 | panic("state 0x%x in sastart", softc->state); |
| 1698 | break; |
| 1699 | } |
| 1700 | } |
| 1701 | |
| 1702 | |
| 1703 | static void |
| 1704 | sadone(struct cam_periph *periph, union ccb *done_ccb) |
| 1705 | { |
| 1706 | struct sa_softc *softc; |
| 1707 | struct ccb_scsiio *csio; |
| 1708 | |
| 1709 | softc = (struct sa_softc *)periph->softc; |
| 1710 | csio = &done_ccb->csio; |
| 1711 | switch (CCB_Type(csio)) { |
| 1712 | case SA_CCB_BUFFER_IO: |
| 1713 | { |
| 1714 | struct buf *bp; |
| 1715 | int error; |
| 1716 | |
| 1717 | softc->dsreg = MTIO_DSREG_REST; |
| 1718 | bp = (struct buf *)done_ccb->ccb_h.ccb_bp; |
| 1719 | error = 0; |
| 1720 | if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { |
| 1721 | if ((error = saerror(done_ccb, 0, 0)) == ERESTART) { |
| 1722 | /* |
| 1723 | * A retry was scheduled, so just return. |
| 1724 | */ |
| 1725 | return; |
| 1726 | } |
| 1727 | } |
| 1728 | |
| 1729 | if (error == EIO) { |
| 1730 | int s; |
| 1731 | struct buf *q_bp; |
| 1732 | |
| 1733 | /* |
| 1734 | * Catastrophic error. Mark the tape as frozen |
| 1735 | * (we no longer know tape position). |
| 1736 | * |
| 1737 | * Return all queued I/O with EIO, and unfreeze |
| 1738 | * our queue so that future transactions that |
| 1739 | * attempt to fix this problem can get to the |
| 1740 | * device. |
| 1741 | * |
| 1742 | */ |
| 1743 | |
| 1744 | s = splbio(); |
| 1745 | softc->flags |= SA_FLAG_TAPE_FROZEN; |
| 1746 | while ((q_bp = bufq_first(&softc->buf_queue)) != NULL) { |
| 1747 | bufq_remove(&softc->buf_queue, q_bp); |
| 1748 | q_bp->b_resid = q_bp->b_bcount; |
| 1749 | q_bp->b_error = EIO; |
| 1750 | q_bp->b_flags |= B_ERROR; |
| 1751 | biodone(q_bp); |
| 1752 | } |
| 1753 | splx(s); |
| 1754 | } |
| 1755 | if (error != 0) { |
| 1756 | bp->b_resid = bp->b_bcount; |
| 1757 | bp->b_error = error; |
| 1758 | bp->b_flags |= B_ERROR; |
| 1759 | /* |
| 1760 | * In the error case, position is updated in saerror. |
| 1761 | */ |
| 1762 | } else { |
| 1763 | bp->b_resid = csio->resid; |
| 1764 | bp->b_error = 0; |
| 1765 | if (csio->resid != 0) { |
| 1766 | bp->b_flags |= B_ERROR; |
| 1767 | } |
| 1768 | if ((bp->b_flags & B_READ) == 0) { |
| 1769 | softc->flags |= SA_FLAG_TAPE_WRITTEN; |
| 1770 | softc->filemarks = 0; |
| 1771 | } |
| 1772 | if (!(csio->ccb_h.ccb_pflags & SA_POSITION_UPDATED) && |
| 1773 | (softc->blkno != (daddr_t) -1)) { |
| 1774 | if ((softc->flags & SA_FLAG_FIXED) != 0) { |
| 1775 | u_int32_t l; |
| 1776 | if (softc->blk_shift != 0) { |
| 1777 | l = bp->b_bcount >> |
| 1778 | softc->blk_shift; |
| 1779 | } else { |
| 1780 | l = bp->b_bcount / |
| 1781 | softc->media_blksize; |
| 1782 | } |
| 1783 | softc->blkno += (daddr_t) l; |
| 1784 | } else { |
| 1785 | softc->blkno++; |
| 1786 | } |
| 1787 | } |
| 1788 | } |
| 1789 | /* |
| 1790 | * If we had an error (immediate or pending), |
| 1791 | * release the device queue now. |
| 1792 | */ |
| 1793 | if (error || (softc->flags & SA_FLAG_ERR_PENDING)) |
| 1794 | cam_release_devq(done_ccb->ccb_h.path, 0, 0, 0, 0); |
| 1795 | #ifdef CAMDEBUG |
| 1796 | if (error || bp->b_resid) { |
| 1797 | CAM_DEBUG(periph->path, CAM_DEBUG_INFO, |
| 1798 | ("error %d resid %ld count %ld\n", error, |
| 1799 | bp->b_resid, bp->b_bcount)); |
| 1800 | } |
| 1801 | #endif |
| 1802 | devstat_end_transaction_buf(&softc->device_stats, bp); |
| 1803 | biodone(bp); |
| 1804 | break; |
| 1805 | } |
| 1806 | case SA_CCB_WAITING: |
| 1807 | { |
| 1808 | /* Caller will release the CCB */ |
| 1809 | wakeup(&done_ccb->ccb_h.cbfcnp); |
| 1810 | return; |
| 1811 | } |
| 1812 | } |
| 1813 | xpt_release_ccb(done_ccb); |
| 1814 | } |
| 1815 | |
| 1816 | /* |
| 1817 | * Mount the tape (make sure it's ready for I/O). |
| 1818 | */ |
| 1819 | static int |
| 1820 | samount(struct cam_periph *periph, int oflags, dev_t dev) |
| 1821 | { |
| 1822 | struct sa_softc *softc; |
| 1823 | union ccb *ccb; |
| 1824 | int error; |
| 1825 | |
| 1826 | /* |
| 1827 | * oflags can be checked for 'kind' of open (read-only check) - later |
| 1828 | * dev can be checked for a control-mode or compression open - later |
| 1829 | */ |
| 1830 | UNUSED_PARAMETER(oflags); |
| 1831 | UNUSED_PARAMETER(dev); |
| 1832 | |
| 1833 | |
| 1834 | softc = (struct sa_softc *)periph->softc; |
| 1835 | |
| 1836 | /* |
| 1837 | * This should determine if something has happend since the last |
| 1838 | * open/mount that would invalidate the mount. We do *not* want |
| 1839 | * to retry this command- we just want the status. But we only |
| 1840 | * do this if we're mounted already- if we're not mounted, |
| 1841 | * we don't care about the unit read state and can instead use |
| 1842 | * this opportunity to attempt to reserve the tape unit. |
| 1843 | */ |
| 1844 | |
| 1845 | if (softc->flags & SA_FLAG_TAPE_MOUNTED) { |
| 1846 | ccb = cam_periph_getccb(periph, 1); |
| 1847 | scsi_test_unit_ready(&ccb->csio, 0, sadone, |
| 1848 | MSG_SIMPLE_Q_TAG, SSD_FULL_SIZE, IO_TIMEOUT); |
| 1849 | error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, |
| 1850 | &softc->device_stats); |
| 1851 | QFRLS(ccb); |
| 1852 | if (error == ENXIO) { |
| 1853 | softc->flags &= ~SA_FLAG_TAPE_MOUNTED; |
| 1854 | scsi_test_unit_ready(&ccb->csio, 0, sadone, |
| 1855 | MSG_SIMPLE_Q_TAG, SSD_FULL_SIZE, IO_TIMEOUT); |
| 1856 | error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, |
| 1857 | &softc->device_stats); |
| 1858 | QFRLS(ccb); |
| 1859 | } else if (error) { |
| 1860 | /* |
| 1861 | * We don't need to freeze the tape because we |
| 1862 | * will now attempt to rewind/load it. |
| 1863 | */ |
| 1864 | softc->flags &= ~SA_FLAG_TAPE_MOUNTED; |
| 1865 | if (CAM_DEBUGGED(ccb->ccb_h.path, CAM_DEBUG_INFO)) { |
| 1866 | xpt_print_path(ccb->ccb_h.path); |
| 1867 | printf("error %d on TUR in samount\n", error); |
| 1868 | } |
| 1869 | } |
| 1870 | } else { |
| 1871 | error = sareservereleaseunit(periph, TRUE); |
| 1872 | if (error) { |
| 1873 | return (error); |
| 1874 | } |
| 1875 | ccb = cam_periph_getccb(periph, 1); |
| 1876 | scsi_test_unit_ready(&ccb->csio, 0, sadone, |
| 1877 | MSG_SIMPLE_Q_TAG, SSD_FULL_SIZE, IO_TIMEOUT); |
| 1878 | error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, |
| 1879 | &softc->device_stats); |
| 1880 | QFRLS(ccb); |
| 1881 | } |
| 1882 | |
| 1883 | if ((softc->flags & SA_FLAG_TAPE_MOUNTED) == 0) { |
| 1884 | struct scsi_read_block_limits_data *rblim = NULL; |
| 1885 | int comp_enabled, comp_supported; |
| 1886 | u_int8_t write_protect, guessing = 0; |
| 1887 | |
| 1888 | /* |
| 1889 | * Clear out old state. |
| 1890 | */ |
| 1891 | softc->flags &= ~(SA_FLAG_TAPE_WP|SA_FLAG_TAPE_WRITTEN| |
| 1892 | SA_FLAG_ERR_PENDING|SA_FLAG_COMP_ENABLED| |
| 1893 | SA_FLAG_COMP_SUPP|SA_FLAG_COMP_UNSUPP); |
| 1894 | softc->filemarks = 0; |
| 1895 | |
| 1896 | /* |
| 1897 | * *Very* first off, make sure we're loaded to BOT. |
| 1898 | */ |
| 1899 | scsi_load_unload(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, FALSE, |
| 1900 | FALSE, FALSE, 1, SSD_FULL_SIZE, REWIND_TIMEOUT); |
| 1901 | error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, |
| 1902 | &softc->device_stats); |
| 1903 | QFRLS(ccb); |
| 1904 | |
| 1905 | /* |
| 1906 | * In case this doesn't work, do a REWIND instead |
| 1907 | */ |
| 1908 | if (error) { |
| 1909 | scsi_rewind(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, |
| 1910 | FALSE, SSD_FULL_SIZE, REWIND_TIMEOUT); |
| 1911 | error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, |
| 1912 | &softc->device_stats); |
| 1913 | QFRLS(ccb); |
| 1914 | } |
| 1915 | if (error) { |
| 1916 | xpt_release_ccb(ccb); |
| 1917 | goto exit; |
| 1918 | } |
| 1919 | |
| 1920 | /* |
| 1921 | * Do a dummy test read to force access to the |
| 1922 | * media so that the drive will really know what's |
| 1923 | * there. We actually don't really care what the |
| 1924 | * blocksize on tape is and don't expect to really |
| 1925 | * read a full record. |
| 1926 | */ |
| 1927 | rblim = (struct scsi_read_block_limits_data *) |
| 1928 | malloc(8192, M_TEMP, M_WAITOK); |
| 1929 | if (rblim == NULL) { |
| 1930 | xpt_print_path(ccb->ccb_h.path); |
| 1931 | printf("no memory for test read\n"); |
| 1932 | xpt_release_ccb(ccb); |
| 1933 | error = ENOMEM; |
| 1934 | goto exit; |
| 1935 | } |
| 1936 | |
| 1937 | if ((softc->quirks & SA_QUIRK_NODREAD) == 0) { |
| 1938 | scsi_sa_read_write(&ccb->csio, 0, sadone, |
| 1939 | MSG_SIMPLE_Q_TAG, 1, FALSE, 0, 8192, |
| 1940 | (void *) rblim, 8192, SSD_FULL_SIZE, |
| 1941 | IO_TIMEOUT); |
| 1942 | (void) cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, |
| 1943 | &softc->device_stats); |
| 1944 | QFRLS(ccb); |
| 1945 | scsi_rewind(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG, |
| 1946 | FALSE, SSD_FULL_SIZE, REWIND_TIMEOUT); |
| 1947 | error = cam_periph_runccb(ccb, saerror, 0, |
| 1948 | SF_NO_PRINT | SF_RETRY_SELTO | SF_RETRY_UA, |
| 1949 | &softc->device_stats); |
| 1950 | QFRLS(ccb); |
| 1951 | if (error) { |
| 1952 | xpt_print_path(ccb->ccb_h.path); |
| 1953 | printf("unable to rewind after test read\n"); |
| 1954 | xpt_release_ccb(ccb); |
| 1955 | goto exit; |
| 1956 | } |
| 1957 | } |
| 1958 | |
| 1959 | /* |
| 1960 | * Next off, determine block limits. |
| 1961 | */ |
| 1962 | scsi_read_block_limits(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, |
| 1963 | rblim, SSD_FULL_SIZE, SCSIOP_TIMEOUT); |
| 1964 | |
| 1965 | error = cam_periph_runccb(ccb, saerror, 0, |
| 1966 | SF_NO_PRINT | SF_RETRY_UA | SF_RETRY_SELTO, |
| 1967 | &softc->device_stats); |
| 1968 | QFRLS(ccb); |
| 1969 | xpt_release_ccb(ccb); |
| 1970 | |
| 1971 | if (error != 0) { |
| 1972 | /* |
| 1973 | * If it's less than SCSI-2, READ BLOCK LIMITS is not |
| 1974 | * a MANDATORY command. Anyway- it doesn't matter- |
| 1975 | * we can proceed anyway. |
| 1976 | */ |
| 1977 | softc->blk_gran = 0; |
| 1978 | softc->max_blk = ~0; |
| 1979 | softc->min_blk = 0; |
| 1980 | } else { |
| 1981 | if (softc->scsi_rev >= SCSI_REV_3) { |
| 1982 | softc->blk_gran = RBL_GRAN(rblim); |
| 1983 | } else { |
| 1984 | softc->blk_gran = 0; |
| 1985 | } |
| 1986 | /* |
| 1987 | * We take max_blk == min_blk to mean a default to |
| 1988 | * fixed mode- but note that whatever we get out of |
| 1989 | * sagetparams below will actually determine whether |
| 1990 | * we are actually *in* fixed mode. |
| 1991 | */ |
| 1992 | softc->max_blk = scsi_3btoul(rblim->maximum); |
| 1993 | softc->min_blk = scsi_2btoul(rblim->minimum); |
| 1994 | |
| 1995 | |
| 1996 | } |
| 1997 | /* |
| 1998 | * Next, perform a mode sense to determine |
| 1999 | * current density, blocksize, compression etc. |
| 2000 | */ |
| 2001 | error = sagetparams(periph, SA_PARAM_ALL, |
| 2002 | &softc->media_blksize, |
| 2003 | &softc->media_density, |
| 2004 | &softc->media_numblks, |
| 2005 | &softc->buffer_mode, &write_protect, |
| 2006 | &softc->speed, &comp_supported, |
| 2007 | &comp_enabled, &softc->comp_algorithm, |
| 2008 | NULL); |
| 2009 | |
| 2010 | if (error != 0) { |
| 2011 | /* |
| 2012 | * We could work a little harder here. We could |
| 2013 | * adjust our attempts to get information. It |
| 2014 | * might be an ancient tape drive. If someone |
| 2015 | * nudges us, we'll do that. |
| 2016 | */ |
| 2017 | goto exit; |
| 2018 | } |
| 2019 | |
| 2020 | /* |
| 2021 | * If no quirk has determined that this is a device that is |
| 2022 | * preferred to be in fixed or variable mode, now is the time |
| 2023 | * to find out. |
| 2024 | */ |
| 2025 | if ((softc->quirks & (SA_QUIRK_FIXED|SA_QUIRK_VARIABLE)) == 0) { |
| 2026 | guessing = 1; |
| 2027 | /* |
| 2028 | * This could be expensive to find out. Luckily we |
| 2029 | * only need to do this once. If we start out in |
| 2030 | * 'default' mode, try and set ourselves to one |
| 2031 | * of the densities that would determine a wad |
| 2032 | * of other stuff. Go from highest to lowest. |
| 2033 | */ |
| 2034 | if (softc->media_density == SCSI_DEFAULT_DENSITY) { |
| 2035 | int i; |
| 2036 | static u_int8_t ctry[] = { |
| 2037 | SCSI_DENSITY_HALFINCH_PE, |
| 2038 | SCSI_DENSITY_HALFINCH_6250C, |
| 2039 | SCSI_DENSITY_HALFINCH_6250, |
| 2040 | SCSI_DENSITY_HALFINCH_1600, |
| 2041 | SCSI_DENSITY_HALFINCH_800, |
| 2042 | SCSI_DENSITY_QIC_4GB, |
| 2043 | SCSI_DENSITY_QIC_2GB, |
| 2044 | SCSI_DENSITY_QIC_525_320, |
| 2045 | SCSI_DENSITY_QIC_150, |
| 2046 | SCSI_DENSITY_QIC_120, |
| 2047 | SCSI_DENSITY_QIC_24, |
| 2048 | SCSI_DENSITY_QIC_11_9TRK, |
| 2049 | SCSI_DENSITY_QIC_11_4TRK, |
| 2050 | SCSI_DENSITY_QIC_1320, |
| 2051 | SCSI_DENSITY_QIC_3080, |
| 2052 | 0 |
| 2053 | }; |
| 2054 | for (i = 0; ctry[i]; i++) { |
| 2055 | error = sasetparams(periph, |
| 2056 | SA_PARAM_DENSITY, 0, ctry[i], |
| 2057 | 0, SF_NO_PRINT); |
| 2058 | if (error == 0) { |
| 2059 | softc->media_density = ctry[i]; |
| 2060 | break; |
| 2061 | } |
| 2062 | } |
| 2063 | } |
| 2064 | switch (softc->media_density) { |
| 2065 | case SCSI_DENSITY_QIC_11_4TRK: |
| 2066 | case SCSI_DENSITY_QIC_11_9TRK: |
| 2067 | case SCSI_DENSITY_QIC_24: |
| 2068 | case SCSI_DENSITY_QIC_120: |
| 2069 | case SCSI_DENSITY_QIC_150: |
| 2070 | case SCSI_DENSITY_QIC_525_320: |
| 2071 | case SCSI_DENSITY_QIC_1320: |
| 2072 | case SCSI_DENSITY_QIC_3080: |
| 2073 | softc->quirks &= ~SA_QUIRK_2FM; |
| 2074 | softc->quirks |= SA_QUIRK_FIXED|SA_QUIRK_1FM; |
| 2075 | softc->last_media_blksize = 512; |
| 2076 | break; |
| 2077 | case SCSI_DENSITY_QIC_4GB: |
| 2078 | case SCSI_DENSITY_QIC_2GB: |
| 2079 | softc->quirks &= ~SA_QUIRK_2FM; |
| 2080 | softc->quirks |= SA_QUIRK_FIXED|SA_QUIRK_1FM; |
| 2081 | softc->last_media_blksize = 1024; |
| 2082 | break; |
| 2083 | default: |
| 2084 | softc->last_media_blksize = |
| 2085 | softc->media_blksize; |
| 2086 | softc->quirks |= SA_QUIRK_VARIABLE; |
| 2087 | break; |
| 2088 | } |
| 2089 | } |
| 2090 | |
| 2091 | /* |
| 2092 | * If no quirk has determined that this is a device that needs |
| 2093 | * to have 2 Filemarks at EOD, now is the time to find out. |
| 2094 | */ |
| 2095 | |
| 2096 | if ((softc->quirks & SA_QUIRK_2FM) == 0) { |
| 2097 | switch (softc->media_density) { |
| 2098 | case SCSI_DENSITY_HALFINCH_800: |
| 2099 | case SCSI_DENSITY_HALFINCH_1600: |
| 2100 | case SCSI_DENSITY_HALFINCH_6250: |
| 2101 | case SCSI_DENSITY_HALFINCH_6250C: |
| 2102 | case SCSI_DENSITY_HALFINCH_PE: |
| 2103 | softc->quirks &= ~SA_QUIRK_1FM; |
| 2104 | softc->quirks |= SA_QUIRK_2FM; |
| 2105 | break; |
| 2106 | default: |
| 2107 | break; |
| 2108 | } |
| 2109 | } |
| 2110 | |
| 2111 | /* |
| 2112 | * Now validate that some info we got makes sense. |
| 2113 | */ |
| 2114 | if ((softc->max_blk < softc->media_blksize) || |
| 2115 | (softc->min_blk > softc->media_blksize && |
| 2116 | softc->media_blksize)) { |
| 2117 | xpt_print_path(ccb->ccb_h.path); |
| 2118 | printf("BLOCK LIMITS (%d..%d) could not match current " |
| 2119 | "block settings (%d)- adjusting\n", softc->min_blk, |
| 2120 | softc->max_blk, softc->media_blksize); |
| 2121 | softc->max_blk = softc->min_blk = |
| 2122 | softc->media_blksize; |
| 2123 | } |
| 2124 | |
| 2125 | /* |
| 2126 | * Now put ourselves into the right frame of mind based |
| 2127 | * upon quirks... |
| 2128 | */ |
| 2129 | tryagain: |
| 2130 | /* |
| 2131 | * If we want to be in FIXED mode and our current blocksize |
| 2132 | * is not equal to our last blocksize (if nonzero), try and |
| 2133 | * set ourselves to this last blocksize (as the 'preferred' |
| 2134 | * block size). The initial quirkmatch at registry sets the |
| 2135 | * initial 'last' blocksize. If, for whatever reason, this |
| 2136 | * 'last' blocksize is zero, set the blocksize to 512, |
| 2137 | * or min_blk if that's larger. |
| 2138 | */ |
| 2139 | if ((softc->quirks & SA_QUIRK_FIXED) && |
| 2140 | (softc->quirks & SA_QUIRK_NO_MODESEL) == 0 && |
| 2141 | (softc->media_blksize != softc->last_media_blksize)) { |
| 2142 | softc->media_blksize = softc->last_media_blksize; |
| 2143 | if (softc->media_blksize == 0) { |
| 2144 | softc->media_blksize = 512; |
| 2145 | if (softc->media_blksize < softc->min_blk) { |
| 2146 | softc->media_blksize = softc->min_blk; |
| 2147 | } |
| 2148 | } |
| 2149 | error = sasetparams(periph, SA_PARAM_BLOCKSIZE, |
| 2150 | softc->media_blksize, 0, 0, SF_NO_PRINT); |
| 2151 | if (error) { |
| 2152 | xpt_print_path(ccb->ccb_h.path); |
| 2153 | printf("unable to set fixed blocksize to %d\n", |
| 2154 | softc->media_blksize); |
| 2155 | goto exit; |
| 2156 | } |
| 2157 | } |
| 2158 | |
| 2159 | if ((softc->quirks & SA_QUIRK_VARIABLE) && |
| 2160 | (softc->media_blksize != 0)) { |
| 2161 | softc->last_media_blksize = softc->media_blksize; |
| 2162 | softc->media_blksize = 0; |
| 2163 | error = sasetparams(periph, SA_PARAM_BLOCKSIZE, |
| 2164 | 0, 0, 0, SF_NO_PRINT); |
| 2165 | if (error) { |
| 2166 | /* |
| 2167 | * If this fails and we were guessing, just |
| 2168 | * assume that we got it wrong and go try |
| 2169 | * fixed block mode. Don't even check against |
| 2170 | * density code at this point. |
| 2171 | */ |
| 2172 | if (guessing) { |
| 2173 | softc->quirks &= ~SA_QUIRK_VARIABLE; |
| 2174 | softc->quirks |= SA_QUIRK_FIXED; |
| 2175 | if (softc->last_media_blksize == 0) |
| 2176 | softc->last_media_blksize = 512; |
| 2177 | goto tryagain; |
| 2178 | } |
| 2179 | xpt_print_path(ccb->ccb_h.path); |
| 2180 | printf("unable to set variable blocksize\n"); |
| 2181 | goto exit; |
| 2182 | } |
| 2183 | } |
| 2184 | |
| 2185 | /* |
| 2186 | * Now that we have the current block size, |
| 2187 | * set up some parameters for sastart's usage. |
| 2188 | */ |
| 2189 | if (softc->media_blksize) { |
| 2190 | softc->flags |= SA_FLAG_FIXED; |
| 2191 | if (powerof2(softc->media_blksize)) { |
| 2192 | softc->blk_shift = |
| 2193 | ffs(softc->media_blksize) - 1; |
| 2194 | softc->blk_mask = softc->media_blksize - 1; |
| 2195 | } else { |
| 2196 | softc->blk_mask = ~0; |
| 2197 | softc->blk_shift = 0; |
| 2198 | } |
| 2199 | } else { |
| 2200 | /* |
| 2201 | * The SCSI-3 spec allows 0 to mean "unspecified". |
| 2202 | * The SCSI-1 spec allows 0 to mean 'infinite'. |
| 2203 | * |
| 2204 | * Either works here. |
| 2205 | */ |
| 2206 | if (softc->max_blk == 0) { |
| 2207 | softc->max_blk = ~0; |
| 2208 | } |
| 2209 | softc->blk_shift = 0; |
| 2210 | if (softc->blk_gran != 0) { |
| 2211 | softc->blk_mask = softc->blk_gran - 1; |
| 2212 | } else { |
| 2213 | softc->blk_mask = 0; |
| 2214 | } |
| 2215 | } |
| 2216 | |
| 2217 | if (write_protect) |
| 2218 | softc->flags |= SA_FLAG_TAPE_WP; |
| 2219 | |
| 2220 | if (comp_supported) { |
| 2221 | if (softc->saved_comp_algorithm == 0) |
| 2222 | softc->saved_comp_algorithm = |
| 2223 | softc->comp_algorithm; |
| 2224 | softc->flags |= SA_FLAG_COMP_SUPP; |
| 2225 | if (comp_enabled) |
| 2226 | softc->flags |= SA_FLAG_COMP_ENABLED; |
| 2227 | } else |
| 2228 | softc->flags |= SA_FLAG_COMP_UNSUPP; |
| 2229 | |
| 2230 | if ((softc->buffer_mode == SMH_SA_BUF_MODE_NOBUF) && |
| 2231 | (softc->quirks & SA_QUIRK_NO_MODESEL) == 0) { |
| 2232 | error = sasetparams(periph, SA_PARAM_BUFF_MODE, 0, |
| 2233 | 0, 0, SF_NO_PRINT); |
| 2234 | if (error == 0) { |
| 2235 | softc->buffer_mode = SMH_SA_BUF_MODE_SIBUF; |
| 2236 | } else { |
| 2237 | xpt_print_path(ccb->ccb_h.path); |
| 2238 | printf("unable to set buffered mode\n"); |
| 2239 | } |
| 2240 | error = 0; /* not an error */ |
| 2241 | } |
| 2242 | |
| 2243 | |
| 2244 | if (error == 0) { |
| 2245 | softc->flags |= SA_FLAG_TAPE_MOUNTED; |
| 2246 | } |
| 2247 | exit: |
| 2248 | if (rblim != NULL) |
| 2249 | free(rblim, M_TEMP); |
| 2250 | |
| 2251 | if (error != 0) { |
| 2252 | softc->dsreg = MTIO_DSREG_NIL; |
| 2253 | } else { |
| 2254 | softc->fileno = softc->blkno = 0; |
| 2255 | softc->dsreg = MTIO_DSREG_REST; |
| 2256 | } |
| 2257 | #ifdef SA_1FM_AT_EOD |
| 2258 | if ((softc->quirks & SA_QUIRK_2FM) == 0) |
| 2259 | softc->quirks |= SA_QUIRK_1FM; |
| 2260 | #else |
| 2261 | if ((softc->quirks & SA_QUIRK_1FM) == 0) |
| 2262 | softc->quirks |= SA_QUIRK_2FM; |
| 2263 | #endif |
| 2264 | } else |
| 2265 | xpt_release_ccb(ccb); |
| 2266 | |
| 2267 | /* |
| 2268 | * If we return an error, we're not mounted any more, |
| 2269 | * so release any device reservation. |
| 2270 | */ |
| 2271 | if (error != 0) { |
| 2272 | (void) sareservereleaseunit(periph, FALSE); |
| 2273 | } else { |
| 2274 | /* |
| 2275 | * Clear I/O residual. |
| 2276 | */ |
| 2277 | softc->last_io_resid = 0; |
| 2278 | softc->last_ctl_resid = 0; |
| 2279 | } |
| 2280 | return (error); |
| 2281 | } |
| 2282 | |
| 2283 | /* |
| 2284 | * How many filemarks do we need to write if we were to terminate the |
| 2285 | * tape session right now? Note that this can be a negative number |
| 2286 | */ |
| 2287 | |
| 2288 | static int |
| 2289 | samarkswanted(struct cam_periph *periph) |
| 2290 | { |
| 2291 | int markswanted; |
| 2292 | struct sa_softc *softc; |
| 2293 | |
| 2294 | softc = (struct sa_softc *)periph->softc; |
| 2295 | markswanted = 0; |
| 2296 | if ((softc->flags & SA_FLAG_TAPE_WRITTEN) != 0) { |
| 2297 | markswanted++; |
| 2298 | if (softc->quirks & SA_QUIRK_2FM) |
| 2299 | markswanted++; |
| 2300 | } |
| 2301 | markswanted -= softc->filemarks; |
| 2302 | return (markswanted); |
| 2303 | } |
| 2304 | |
| 2305 | static int |
| 2306 | sacheckeod(struct cam_periph *periph) |
| 2307 | { |
| 2308 | int error; |
| 2309 | int markswanted; |
| 2310 | struct sa_softc *softc; |
| 2311 | |
| 2312 | softc = (struct sa_softc *)periph->softc; |
| 2313 | markswanted = samarkswanted(periph); |
| 2314 | |
| 2315 | if (markswanted > 0) { |
| 2316 | error = sawritefilemarks(periph, markswanted, FALSE); |
| 2317 | } else { |
| 2318 | error = 0; |
| 2319 | } |
| 2320 | return (error); |
| 2321 | } |
| 2322 | |
| 2323 | static int |
| 2324 | saerror(union ccb *ccb, u_int32_t cflgs, u_int32_t sflgs) |
| 2325 | { |
| 2326 | static const char *toobig = |
| 2327 | "%d-byte tape record bigger than supplied buffer\n"; |
| 2328 | struct cam_periph *periph; |
| 2329 | struct sa_softc *softc; |
| 2330 | struct ccb_scsiio *csio; |
| 2331 | struct scsi_sense_data *sense; |
| 2332 | u_int32_t resid = 0; |
| 2333 | int32_t info = 0; |
| 2334 | cam_status status; |
| 2335 | int error_code, sense_key, asc, ascq, error, aqvalid; |
| 2336 | |
| 2337 | periph = xpt_path_periph(ccb->ccb_h.path); |
| 2338 | softc = (struct sa_softc *)periph->softc; |
| 2339 | csio = &ccb->csio; |
| 2340 | sense = &csio->sense_data; |
| 2341 | scsi_extract_sense(sense, &error_code, &sense_key, &asc, &ascq); |
| 2342 | aqvalid = sense->extra_len >= 6; |
| 2343 | error = 0; |
| 2344 | |
| 2345 | status = csio->ccb_h.status & CAM_STATUS_MASK; |
| 2346 | |
| 2347 | /* |
| 2348 | * Calculate/latch up, any residuals... We do this in a funny 2-step |
| 2349 | * so we can print stuff here if we have CAM_DEBUG enabled for this |
| 2350 | * unit. |
| 2351 | */ |
| 2352 | if (status == CAM_SCSI_STATUS_ERROR) { |
| 2353 | if ((sense->error_code & SSD_ERRCODE_VALID) != 0) { |
| 2354 | info = (int32_t) scsi_4btoul(sense->info); |
| 2355 | resid = info; |
| 2356 | if ((softc->flags & SA_FLAG_FIXED) != 0) |
| 2357 | resid *= softc->media_blksize; |
| 2358 | } else { |
| 2359 | resid = csio->dxfer_len; |
| 2360 | info = resid; |
| 2361 | if ((softc->flags & SA_FLAG_FIXED) != 0) { |
| 2362 | if (softc->media_blksize) |
| 2363 | info /= softc->media_blksize; |
| 2364 | } |
| 2365 | } |
| 2366 | if (CCB_Type(csio) == SA_CCB_BUFFER_IO) { |
| 2367 | bcopy((caddr_t) sense, (caddr_t) &softc->last_io_sense, |
| 2368 | sizeof (struct scsi_sense_data)); |
| 2369 | bcopy(csio->cdb_io.cdb_bytes, softc->last_io_cdb, |
| 2370 | (int) csio->cdb_len); |
| 2371 | softc->last_io_resid = resid; |
| 2372 | softc->last_resid_was_io = 1; |
| 2373 | } else { |
| 2374 | bcopy((caddr_t) sense, (caddr_t) &softc->last_ctl_sense, |
| 2375 | sizeof (struct scsi_sense_data)); |
| 2376 | bcopy(csio->cdb_io.cdb_bytes, softc->last_ctl_cdb, |
| 2377 | (int) csio->cdb_len); |
| 2378 | softc->last_ctl_resid = resid; |
| 2379 | softc->last_resid_was_io = 0; |
| 2380 | } |
| 2381 | CAM_DEBUG(periph->path, CAM_DEBUG_INFO, ("CDB[0]=0x%x Key 0x%x " |
| 2382 | "ASC/ASCQ 0x%x/0x%x CAM STATUS 0x%x flags 0x%x resid %d " |
| 2383 | "dxfer_len %d\n", csio->cdb_io.cdb_bytes[0] & 0xff, |
| 2384 | sense_key, asc, ascq, status, |
| 2385 | sense->flags & ~SSD_KEY_RESERVED, resid, csio->dxfer_len)); |
| 2386 | } else { |
| 2387 | CAM_DEBUG(periph->path, CAM_DEBUG_INFO, |
| 2388 | ("Cam Status 0x%x\n", status)); |
| 2389 | } |
| 2390 | |
| 2391 | switch (status) { |
| 2392 | case CAM_REQ_CMP: |
| 2393 | return (0); |
| 2394 | case CAM_SCSI_STATUS_ERROR: |
| 2395 | /* |
| 2396 | * If a read/write command, we handle it here. |
| 2397 | */ |
| 2398 | if (CCB_Type(csio) != SA_CCB_WAITING) { |
| 2399 | break; |
| 2400 | } |
| 2401 | /* |
| 2402 | * If this was just EOM/EOP, Filemark, Setmark or ILI detected |
| 2403 | * on a non read/write command, we assume it's not an error |
| 2404 | * and propagate the residule and return. |
| 2405 | */ |
| 2406 | if ((aqvalid && asc == 0 && ascq > 0 && ascq <= 5) || |
| 2407 | (aqvalid == 0 && sense_key == SSD_KEY_NO_SENSE)) { |
| 2408 | csio->resid = resid; |
| 2409 | QFRLS(ccb); |
| 2410 | return (0); |
| 2411 | } |
| 2412 | /* |
| 2413 | * Otherwise, we let the common code handle this. |
| 2414 | */ |
| 2415 | return (cam_periph_error(ccb, cflgs, sflgs, &softc->saved_ccb)); |
| 2416 | |
| 2417 | /* |
| 2418 | * XXX: To Be Fixed |
| 2419 | * We cannot depend upon CAM honoring retry counts for these. |
| 2420 | */ |
| 2421 | case CAM_SCSI_BUS_RESET: |
| 2422 | case CAM_BDR_SENT: |
| 2423 | if (ccb->ccb_h.retry_count <= 0) { |
| 2424 | return (EIO); |
| 2425 | break; |
| 2426 | } |
| 2427 | /* FALLTHROUGH */ |
| 2428 | default: |
| 2429 | return (cam_periph_error(ccb, cflgs, sflgs, &softc->saved_ccb)); |
| 2430 | } |
| 2431 | |
| 2432 | /* |
| 2433 | * Handle filemark, end of tape, mismatched record sizes.... |
| 2434 | * From this point out, we're only handling read/write cases. |
| 2435 | * Handle writes && reads differently. |
| 2436 | */ |
| 2437 | |
| 2438 | if (csio->cdb_io.cdb_bytes[0] == SA_WRITE) { |
| 2439 | if (sense_key == SSD_KEY_VOLUME_OVERFLOW) { |
| 2440 | csio->resid = resid; |
| 2441 | error = ENOSPC; |
| 2442 | } else if (sense->flags & SSD_EOM) { |
| 2443 | softc->flags |= SA_FLAG_EOM_PENDING; |
| 2444 | /* |
| 2445 | * Grotesque as it seems, the few times |
| 2446 | * I've actually seen a non-zero resid, |
| 2447 | * the tape drive actually lied and had |
| 2448 | * writtent all the data!. |
| 2449 | */ |
| 2450 | csio->resid = 0; |
| 2451 | } |
| 2452 | } else { |
| 2453 | csio->resid = resid; |
| 2454 | if (sense_key == SSD_KEY_BLANK_CHECK) { |
| 2455 | if (softc->quirks & SA_QUIRK_1FM) { |
| 2456 | error = 0; |
| 2457 | softc->flags |= SA_FLAG_EOM_PENDING; |
| 2458 | } else { |
| 2459 | error = EIO; |
| 2460 | } |
| 2461 | } else if (sense->flags & SSD_FILEMARK) { |
| 2462 | if (softc->flags & SA_FLAG_FIXED) { |
| 2463 | error = -1; |
| 2464 | softc->flags |= SA_FLAG_EOF_PENDING; |
| 2465 | } |
| 2466 | /* |
| 2467 | * Unconditionally, if we detected a filemark on a read, |
| 2468 | * mark that we've run moved a file ahead. |
| 2469 | */ |
| 2470 | if (softc->fileno != (daddr_t) -1) { |
| 2471 | softc->fileno++; |
| 2472 | softc->blkno = 0; |
| 2473 | csio->ccb_h.ccb_pflags |= SA_POSITION_UPDATED; |
| 2474 | } |
| 2475 | } |
| 2476 | } |
| 2477 | |
| 2478 | /* |
| 2479 | * Incorrect Length usually applies to read, but can apply to writes. |
| 2480 | */ |
| 2481 | if (error == 0 && (sense->flags & SSD_ILI)) { |
| 2482 | if (info < 0) { |
| 2483 | xpt_print_path(csio->ccb_h.path); |
| 2484 | printf(toobig, csio->dxfer_len - info); |
| 2485 | csio->resid = csio->dxfer_len; |
| 2486 | error = EIO; |
| 2487 | } else { |
| 2488 | csio->resid = resid; |
| 2489 | if (softc->flags & SA_FLAG_FIXED) { |
| 2490 | softc->flags |= SA_FLAG_EIO_PENDING; |
| 2491 | } |
| 2492 | /* |
| 2493 | * Bump the block number if we hadn't seen a filemark. |
| 2494 | * Do this independent of errors (we've moved anyway). |
| 2495 | */ |
| 2496 | if ((sense->flags & SSD_FILEMARK) == 0) { |
| 2497 | if (softc->blkno != (daddr_t) -1) { |
| 2498 | softc->blkno++; |
| 2499 | csio->ccb_h.ccb_pflags |= |
| 2500 | SA_POSITION_UPDATED; |
| 2501 | } |
| 2502 | } |
| 2503 | } |
| 2504 | } |
| 2505 | |
| 2506 | if (error <= 0) { |
| 2507 | /* |
| 2508 | * Unfreeze the queue if frozen as we're not returning anything |
| 2509 | * to our waiters that would indicate an I/O error has occurred |
| 2510 | * (yet). |
| 2511 | */ |
| 2512 | QFRLS(ccb); |
| 2513 | error = 0; |
| 2514 | } |
| 2515 | return (error); |
| 2516 | } |
| 2517 | |
| 2518 | static int |
| 2519 | sagetparams(struct cam_periph *periph, sa_params params_to_get, |
| 2520 | u_int32_t *blocksize, u_int8_t *density, u_int32_t *numblocks, |
| 2521 | int *buff_mode, u_int8_t *write_protect, u_int8_t *speed, |
| 2522 | int *comp_supported, int *comp_enabled, u_int32_t *comp_algorithm, |
| 2523 | sa_comp_t *tcs) |
| 2524 | { |
| 2525 | union ccb *ccb; |
| 2526 | void *mode_buffer; |
| 2527 | struct scsi_mode_header_6 *mode_hdr; |
| 2528 | struct scsi_mode_blk_desc *mode_blk; |
| 2529 | int mode_buffer_len; |
| 2530 | struct sa_softc *softc; |
| 2531 | u_int8_t cpage; |
| 2532 | int error; |
| 2533 | cam_status status; |
| 2534 | |
| 2535 | softc = (struct sa_softc *)periph->softc; |
| 2536 | ccb = cam_periph_getccb(periph, 1); |
| 2537 | if (softc->quirks & SA_QUIRK_NO_CPAGE) |
| 2538 | cpage = SA_DEVICE_CONFIGURATION_PAGE; |
| 2539 | else |
| 2540 | cpage = SA_DATA_COMPRESSION_PAGE; |
| 2541 | |
| 2542 | retry: |
| 2543 | mode_buffer_len = sizeof(*mode_hdr) + sizeof(*mode_blk); |
| 2544 | |
| 2545 | if (params_to_get & SA_PARAM_COMPRESSION) { |
| 2546 | if (softc->quirks & SA_QUIRK_NOCOMP) { |
| 2547 | *comp_supported = FALSE; |
| 2548 | params_to_get &= ~SA_PARAM_COMPRESSION; |
| 2549 | } else |
| 2550 | mode_buffer_len += sizeof (sa_comp_t); |
| 2551 | } |
| 2552 | |
| 2553 | mode_buffer = malloc(mode_buffer_len, M_TEMP, M_WAITOK); |
| 2554 | bzero(mode_buffer, mode_buffer_len); |
| 2555 | mode_hdr = (struct scsi_mode_header_6 *)mode_buffer; |
| 2556 | mode_blk = (struct scsi_mode_blk_desc *)&mode_hdr[1]; |
| 2557 | |
| 2558 | /* it is safe to retry this */ |
| 2559 | scsi_mode_sense(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, FALSE, |
| 2560 | SMS_PAGE_CTRL_CURRENT, (params_to_get & SA_PARAM_COMPRESSION) ? |
| 2561 | cpage : SMS_VENDOR_SPECIFIC_PAGE, mode_buffer, mode_buffer_len, |
| 2562 | SSD_FULL_SIZE, SCSIOP_TIMEOUT); |
| 2563 | |
| 2564 | error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, |
| 2565 | &softc->device_stats); |
| 2566 | QFRLS(ccb); |
| 2567 | |
| 2568 | status = ccb->ccb_h.status & CAM_STATUS_MASK; |
| 2569 | |
| 2570 | if (error == EINVAL && (params_to_get & SA_PARAM_COMPRESSION) != 0) { |
| 2571 | /* |
| 2572 | * Hmm. Let's see if we can try another page... |
| 2573 | * If we've already done that, give up on compression |
| 2574 | * for this device and remember this for the future |
| 2575 | * and attempt the request without asking for compression |
| 2576 | * info. |
| 2577 | */ |
| 2578 | if (cpage == SA_DATA_COMPRESSION_PAGE) { |
| 2579 | cpage = SA_DEVICE_CONFIGURATION_PAGE; |
| 2580 | goto retry; |
| 2581 | } |
| 2582 | softc->quirks |= SA_QUIRK_NOCOMP; |
| 2583 | free(mode_buffer, M_TEMP); |
| 2584 | goto retry; |
| 2585 | } else if (status == CAM_SCSI_STATUS_ERROR) { |
| 2586 | /* Tell the user about the fatal error. */ |
| 2587 | scsi_sense_print(&ccb->csio); |
| 2588 | goto sagetparamsexit; |
| 2589 | } |
| 2590 | |
| 2591 | /* |
| 2592 | * If the user only wants the compression information, and |
| 2593 | * the device doesn't send back the block descriptor, it's |
| 2594 | * no big deal. If the user wants more than just |
| 2595 | * compression, though, and the device doesn't pass back the |
| 2596 | * block descriptor, we need to send another mode sense to |
| 2597 | * get the block descriptor. |
| 2598 | */ |
| 2599 | if ((mode_hdr->blk_desc_len == 0) && |
| 2600 | (params_to_get & SA_PARAM_COMPRESSION) && |
| 2601 | (params_to_get & ~(SA_PARAM_COMPRESSION))) { |
| 2602 | |
| 2603 | /* |
| 2604 | * Decrease the mode buffer length by the size of |
| 2605 | * the compression page, to make sure the data |
| 2606 | * there doesn't get overwritten. |
| 2607 | */ |
| 2608 | mode_buffer_len -= sizeof (sa_comp_t); |
| 2609 | |
| 2610 | /* |
| 2611 | * Now move the compression page that we presumably |
| 2612 | * got back down the memory chunk a little bit so |
| 2613 | * it doesn't get spammed. |
| 2614 | */ |
| 2615 | bcopy(&mode_hdr[0], &mode_hdr[1], sizeof (sa_comp_t)); |
| 2616 | bzero(&mode_hdr[0], sizeof (mode_hdr[0])); |
| 2617 | |
| 2618 | /* |
| 2619 | * Now, we issue another mode sense and just ask |
| 2620 | * for the block descriptor, etc. |
| 2621 | */ |
| 2622 | |
| 2623 | scsi_mode_sense(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, FALSE, |
| 2624 | SMS_PAGE_CTRL_CURRENT, SMS_VENDOR_SPECIFIC_PAGE, |
| 2625 | mode_buffer, mode_buffer_len, SSD_FULL_SIZE, |
| 2626 | SCSIOP_TIMEOUT); |
| 2627 | |
| 2628 | error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, |
| 2629 | &softc->device_stats); |
| 2630 | QFRLS(ccb); |
| 2631 | |
| 2632 | if (error != 0) |
| 2633 | goto sagetparamsexit; |
| 2634 | } |
| 2635 | |
| 2636 | if (params_to_get & SA_PARAM_BLOCKSIZE) |
| 2637 | *blocksize = scsi_3btoul(mode_blk->blklen); |
| 2638 | |
| 2639 | if (params_to_get & SA_PARAM_NUMBLOCKS) |
| 2640 | *numblocks = scsi_3btoul(mode_blk->nblocks); |
| 2641 | |
| 2642 | if (params_to_get & SA_PARAM_BUFF_MODE) |
| 2643 | *buff_mode = mode_hdr->dev_spec & SMH_SA_BUF_MODE_MASK; |
| 2644 | |
| 2645 | if (params_to_get & SA_PARAM_DENSITY) |
| 2646 | *density = mode_blk->density; |
| 2647 | |
| 2648 | if (params_to_get & SA_PARAM_WP) |
| 2649 | *write_protect = (mode_hdr->dev_spec & SMH_SA_WP)? TRUE : FALSE; |
| 2650 | |
| 2651 | if (params_to_get & SA_PARAM_SPEED) |
| 2652 | *speed = mode_hdr->dev_spec & SMH_SA_SPEED_MASK; |
| 2653 | |
| 2654 | if (params_to_get & SA_PARAM_COMPRESSION) { |
| 2655 | sa_comp_t *ntcs = (sa_comp_t *) &mode_blk[1]; |
| 2656 | if (cpage == SA_DATA_COMPRESSION_PAGE) { |
| 2657 | struct scsi_data_compression_page *cp = &ntcs->dcomp; |
| 2658 | *comp_supported = |
| 2659 | (cp->dce_and_dcc & SA_DCP_DCC)? TRUE : FALSE; |
| 2660 | *comp_enabled = |
| 2661 | (cp->dce_and_dcc & SA_DCP_DCE)? TRUE : FALSE; |
| 2662 | *comp_algorithm = scsi_4btoul(cp->comp_algorithm); |
| 2663 | } else { |
| 2664 | struct scsi_dev_conf_page *cp = &ntcs->dconf; |
| 2665 | /* |
| 2666 | * We don't really know whether this device supports |
| 2667 | * Data Compression if the the algorithm field is |
| 2668 | * zero. Just say we do. |
| 2669 | */ |
| 2670 | *comp_supported = TRUE; |
| 2671 | *comp_enabled = |
| 2672 | (cp->sel_comp_alg != SA_COMP_NONE)? TRUE : FALSE; |
| 2673 | *comp_algorithm = cp->sel_comp_alg; |
| 2674 | } |
| 2675 | if (tcs != NULL) |
| 2676 | bcopy(ntcs, tcs, sizeof (sa_comp_t)); |
| 2677 | } |
| 2678 | |
| 2679 | if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) { |
| 2680 | int idx; |
| 2681 | char *xyz = mode_buffer; |
| 2682 | xpt_print_path(periph->path); |
| 2683 | printf("Mode Sense Data="); |
| 2684 | for (idx = 0; idx < mode_buffer_len; idx++) |
| 2685 | printf(" 0x%02x", xyz[idx] & 0xff); |
| 2686 | printf("\n"); |
| 2687 | } |
| 2688 | |
| 2689 | sagetparamsexit: |
| 2690 | |
| 2691 | xpt_release_ccb(ccb); |
| 2692 | free(mode_buffer, M_TEMP); |
| 2693 | return (error); |
| 2694 | } |
| 2695 | |
| 2696 | /* |
| 2697 | * The purpose of this function is to set one of four different parameters |
| 2698 | * for a tape drive: |
| 2699 | * - blocksize |
| 2700 | * - density |
| 2701 | * - compression / compression algorithm |
| 2702 | * - buffering mode |
| 2703 | * |
| 2704 | * The assumption is that this will be called from saioctl(), and therefore |
| 2705 | * from a process context. Thus the waiting malloc calls below. If that |
| 2706 | * assumption ever changes, the malloc calls should be changed to be |
| 2707 | * NOWAIT mallocs. |
| 2708 | * |
| 2709 | * Any or all of the four parameters may be set when this function is |
| 2710 | * called. It should handle setting more than one parameter at once. |
| 2711 | */ |
| 2712 | static int |
| 2713 | sasetparams(struct cam_periph *periph, sa_params params_to_set, |
| 2714 | u_int32_t blocksize, u_int8_t density, u_int32_t calg, |
| 2715 | u_int32_t sense_flags) |
| 2716 | { |
| 2717 | struct sa_softc *softc; |
| 2718 | u_int32_t current_blocksize; |
| 2719 | u_int32_t current_calg; |
| 2720 | u_int8_t current_density; |
| 2721 | u_int8_t current_speed; |
| 2722 | int comp_enabled, comp_supported; |
| 2723 | void *mode_buffer; |
| 2724 | int mode_buffer_len; |
| 2725 | struct scsi_mode_header_6 *mode_hdr; |
| 2726 | struct scsi_mode_blk_desc *mode_blk; |
| 2727 | sa_comp_t *ccomp, *cpage; |
| 2728 | int buff_mode; |
| 2729 | union ccb *ccb = NULL; |
| 2730 | int error; |
| 2731 | |
| 2732 | softc = (struct sa_softc *)periph->softc; |
| 2733 | |
| 2734 | ccomp = malloc(sizeof (sa_comp_t), M_TEMP, M_WAITOK); |
| 2735 | |
| 2736 | /* |
| 2737 | * Since it doesn't make sense to set the number of blocks, or |
| 2738 | * write protection, we won't try to get the current value. We |
| 2739 | * always want to get the blocksize, so we can set it back to the |
| 2740 | * proper value. |
| 2741 | */ |
| 2742 | error = sagetparams(periph, |
| 2743 | params_to_set | SA_PARAM_BLOCKSIZE | SA_PARAM_SPEED, |
| 2744 | ¤t_blocksize, ¤t_density, NULL, &buff_mode, NULL, |
| 2745 | ¤t_speed, &comp_supported, &comp_enabled, |
| 2746 | ¤t_calg, ccomp); |
| 2747 | |
| 2748 | if (error != 0) { |
| 2749 | free(ccomp, M_TEMP); |
| 2750 | return (error); |
| 2751 | } |
| 2752 | |
| 2753 | mode_buffer_len = sizeof(*mode_hdr) + sizeof(*mode_blk); |
| 2754 | if (params_to_set & SA_PARAM_COMPRESSION) |
| 2755 | mode_buffer_len += sizeof (sa_comp_t); |
| 2756 | |
| 2757 | mode_buffer = malloc(mode_buffer_len, M_TEMP, M_WAITOK); |
| 2758 | bzero(mode_buffer, mode_buffer_len); |
| 2759 | |
| 2760 | mode_hdr = (struct scsi_mode_header_6 *)mode_buffer; |
| 2761 | mode_blk = (struct scsi_mode_blk_desc *)&mode_hdr[1]; |
| 2762 | |
| 2763 | ccb = cam_periph_getccb(periph, 1); |
| 2764 | |
| 2765 | retry: |
| 2766 | |
| 2767 | if (params_to_set & SA_PARAM_COMPRESSION) { |
| 2768 | if (mode_blk) { |
| 2769 | cpage = (sa_comp_t *)&mode_blk[1]; |
| 2770 | } else { |
| 2771 | cpage = (sa_comp_t *)&mode_hdr[1]; |
| 2772 | } |
| 2773 | bcopy(ccomp, cpage, sizeof (sa_comp_t)); |
| 2774 | cpage->hdr.pagecode &= ~0x80; |
| 2775 | } else |
| 2776 | cpage = NULL; |
| 2777 | |
| 2778 | /* |
| 2779 | * If the caller wants us to set the blocksize, use the one they |
| 2780 | * pass in. Otherwise, use the blocksize we got back from the |
| 2781 | * mode select above. |
| 2782 | */ |
| 2783 | if (mode_blk) { |
| 2784 | if (params_to_set & SA_PARAM_BLOCKSIZE) |
| 2785 | scsi_ulto3b(blocksize, mode_blk->blklen); |
| 2786 | else |
| 2787 | scsi_ulto3b(current_blocksize, mode_blk->blklen); |
| 2788 | |
| 2789 | /* |
| 2790 | * Set density if requested, else preserve old density. |
| 2791 | * SCSI_SAME_DENSITY only applies to SCSI-2 or better |
| 2792 | * devices, else density we've latched up in our softc. |
| 2793 | */ |
| 2794 | if (params_to_set & SA_PARAM_DENSITY) { |
| 2795 | mode_blk->density = density; |
| 2796 | } else if (softc->scsi_rev > SCSI_REV_CCS) { |
| 2797 | mode_blk->density = SCSI_SAME_DENSITY; |
| 2798 | } else { |
| 2799 | mode_blk->density = softc->media_density; |
| 2800 | } |
| 2801 | } |
| 2802 | |
| 2803 | /* |
| 2804 | * For mode selects, these two fields must be zero. |
| 2805 | */ |
| 2806 | mode_hdr->data_length = 0; |
| 2807 | mode_hdr->medium_type = 0; |
| 2808 | |
| 2809 | /* set the speed to the current value */ |
| 2810 | mode_hdr->dev_spec = current_speed; |
| 2811 | |
| 2812 | /* set single-initiator buffering mode */ |
| 2813 | mode_hdr->dev_spec |= SMH_SA_BUF_MODE_SIBUF; |
| 2814 | |
| 2815 | if (mode_blk) |
| 2816 | mode_hdr->blk_desc_len = sizeof(struct scsi_mode_blk_desc); |
| 2817 | else |
| 2818 | mode_hdr->blk_desc_len = 0; |
| 2819 | |
| 2820 | /* |
| 2821 | * First, if the user wants us to set the compression algorithm or |
| 2822 | * just turn compression on, check to make sure that this drive |
| 2823 | * supports compression. |
| 2824 | */ |
| 2825 | if (params_to_set & SA_PARAM_COMPRESSION) { |
| 2826 | /* |
| 2827 | * If the compression algorithm is 0, disable compression. |
| 2828 | * If the compression algorithm is non-zero, enable |
| 2829 | * compression and set the compression type to the |
| 2830 | * specified compression algorithm, unless the algorithm is |
| 2831 | * MT_COMP_ENABLE. In that case, we look at the |
| 2832 | * compression algorithm that is currently set and if it is |
| 2833 | * non-zero, we leave it as-is. If it is zero, and we have |
| 2834 | * saved a compression algorithm from a time when |
| 2835 | * compression was enabled before, set the compression to |
| 2836 | * the saved value. |
| 2837 | */ |
| 2838 | switch (ccomp->hdr.pagecode & ~0x80) { |
| 2839 | case SA_DATA_COMPRESSION_PAGE: |
| 2840 | if (ccomp->dcomp.dce_and_dcc & SA_DCP_DCC) { |
| 2841 | struct scsi_data_compression_page *dcp = &cpage->dcomp; |
| 2842 | if (calg == 0) { |
| 2843 | /* |
| 2844 | * Disable compression, but leave the |
| 2845 | * decompression and the capability bit |
| 2846 | * alone. |
| 2847 | */ |
| 2848 | dcp->dce_and_dcc = SA_DCP_DCC; |
| 2849 | dcp->dde_and_red |= SA_DCP_DDE; |
| 2850 | break; |
| 2851 | } |
| 2852 | /* enable compression && decompression */ |
| 2853 | dcp->dce_and_dcc = SA_DCP_DCE | SA_DCP_DCC; |
| 2854 | dcp->dde_and_red |= SA_DCP_DDE; |
| 2855 | /* |
| 2856 | * If there, use compression algorithm from caller. |
| 2857 | * Otherwise, if there's a saved compression algorithm |
| 2858 | * and there is no current algorithm, use the saved |
| 2859 | * algorithm. Else parrot back what we got and hope |
| 2860 | * for the best. |
| 2861 | */ |
| 2862 | if (calg != MT_COMP_ENABLE) { |
| 2863 | scsi_ulto4b(calg, dcp->comp_algorithm); |
| 2864 | scsi_ulto4b(calg, dcp->decomp_algorithm); |
| 2865 | } else if (scsi_4btoul(dcp->comp_algorithm) == 0 && |
| 2866 | softc->saved_comp_algorithm != 0) { |
| 2867 | scsi_ulto4b(softc->saved_comp_algorithm, |
| 2868 | dcp->comp_algorithm); |
| 2869 | scsi_ulto4b(softc->saved_comp_algorithm, |
| 2870 | dcp->decomp_algorithm); |
| 2871 | } |
| 2872 | break; |
| 2873 | } |
| 2874 | case SA_DEVICE_CONFIGURATION_PAGE: |
| 2875 | { |
| 2876 | struct scsi_dev_conf_page *dcp = &cpage->dconf; |
| 2877 | if (calg == 0) { |
| 2878 | dcp->sel_comp_alg = SA_COMP_NONE; |
| 2879 | break; |
| 2880 | } |
| 2881 | if (calg != MT_COMP_ENABLE) { |
| 2882 | dcp->sel_comp_alg = calg; |
| 2883 | } else if (dcp->sel_comp_alg == SA_COMP_NONE && |
| 2884 | softc->saved_comp_algorithm != 0) { |
| 2885 | dcp->sel_comp_alg = softc->saved_comp_algorithm; |
| 2886 | } |
| 2887 | break; |
| 2888 | } |
| 2889 | default: |
| 2890 | /* |
| 2891 | * The drive doesn't seem to support compression, |
| 2892 | * so turn off the set compression bit. |
| 2893 | */ |
| 2894 | params_to_set &= ~SA_PARAM_COMPRESSION; |
| 2895 | xpt_print_path(periph->path); |
| 2896 | printf("device does not seem to support compression\n"); |
| 2897 | |
| 2898 | /* |
| 2899 | * If that was the only thing the user wanted us to set, |
| 2900 | * clean up allocated resources and return with |
| 2901 | * 'operation not supported'. |
| 2902 | */ |
| 2903 | if (params_to_set == SA_PARAM_NONE) { |
| 2904 | free(mode_buffer, M_TEMP); |
| 2905 | xpt_release_ccb(ccb); |
| 2906 | return (ENODEV); |
| 2907 | } |
| 2908 | |
| 2909 | /* |
| 2910 | * That wasn't the only thing the user wanted us to set. |
| 2911 | * So, decrease the stated mode buffer length by the |
| 2912 | * size of the compression mode page. |
| 2913 | */ |
| 2914 | mode_buffer_len -= sizeof(sa_comp_t); |
| 2915 | } |
| 2916 | } |
| 2917 | |
| 2918 | /* It is safe to retry this operation */ |
| 2919 | scsi_mode_select(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, |
| 2920 | (params_to_set & SA_PARAM_COMPRESSION)? TRUE : FALSE, |
| 2921 | FALSE, mode_buffer, mode_buffer_len, SSD_FULL_SIZE, SCSIOP_TIMEOUT); |
| 2922 | |
| 2923 | error = cam_periph_runccb(ccb, saerror, 0, |
| 2924 | sense_flags, &softc->device_stats); |
| 2925 | QFRLS(ccb); |
| 2926 | |
| 2927 | if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) { |
| 2928 | int idx; |
| 2929 | char *xyz = mode_buffer; |
| 2930 | xpt_print_path(periph->path); |
| 2931 | printf("Err%d, Mode Select Data=", error); |
| 2932 | for (idx = 0; idx < mode_buffer_len; idx++) |
| 2933 | printf(" 0x%02x", xyz[idx] & 0xff); |
| 2934 | printf("\n"); |
| 2935 | } |
| 2936 | |
| 2937 | |
| 2938 | if (error) { |
| 2939 | /* |
| 2940 | * If we can, try without setting density/blocksize. |
| 2941 | */ |
| 2942 | if (mode_blk) { |
| 2943 | if ((params_to_set & |
| 2944 | (SA_PARAM_DENSITY|SA_PARAM_BLOCKSIZE)) == 0) { |
| 2945 | mode_blk = NULL; |
| 2946 | goto retry; |
| 2947 | } |
| 2948 | } else { |
| 2949 | mode_blk = (struct scsi_mode_blk_desc *)&mode_hdr[1]; |
| 2950 | cpage = (sa_comp_t *)&mode_blk[1]; |
| 2951 | } |
| 2952 | |
| 2953 | /* |
| 2954 | * If we were setting the blocksize, and that failed, we |
| 2955 | * want to set it to its original value. If we weren't |
| 2956 | * setting the blocksize, we don't want to change it. |
| 2957 | */ |
| 2958 | scsi_ulto3b(current_blocksize, mode_blk->blklen); |
| 2959 | |
| 2960 | /* |
| 2961 | * Set density if requested, else preserve old density. |
| 2962 | * SCSI_SAME_DENSITY only applies to SCSI-2 or better |
| 2963 | * devices, else density we've latched up in our softc. |
| 2964 | */ |
| 2965 | if (params_to_set & SA_PARAM_DENSITY) { |
| 2966 | mode_blk->density = current_density; |
| 2967 | } else if (softc->scsi_rev > SCSI_REV_CCS) { |
| 2968 | mode_blk->density = SCSI_SAME_DENSITY; |
| 2969 | } else { |
| 2970 | mode_blk->density = softc->media_density; |
| 2971 | } |
| 2972 | |
| 2973 | if (params_to_set & SA_PARAM_COMPRESSION) |
| 2974 | bcopy(ccomp, cpage, sizeof (sa_comp_t)); |
| 2975 | |
| 2976 | /* |
| 2977 | * The retry count is the only CCB field that might have been |
| 2978 | * changed that we care about, so reset it back to 1. |
| 2979 | */ |
| 2980 | ccb->ccb_h.retry_count = 1; |
| 2981 | cam_periph_runccb(ccb, saerror, 0, sense_flags, |
| 2982 | &softc->device_stats); |
| 2983 | QFRLS(ccb); |
| 2984 | } |
| 2985 | |
| 2986 | xpt_release_ccb(ccb); |
| 2987 | |
| 2988 | if (ccomp != NULL) |
| 2989 | free(ccomp, M_TEMP); |
| 2990 | |
| 2991 | if (params_to_set & SA_PARAM_COMPRESSION) { |
| 2992 | if (error) { |
| 2993 | softc->flags &= ~SA_FLAG_COMP_ENABLED; |
| 2994 | /* |
| 2995 | * Even if we get an error setting compression, |
| 2996 | * do not say that we don't support it. We could |
| 2997 | * have been wrong, or it may be media specific. |
| 2998 | * softc->flags &= ~SA_FLAG_COMP_SUPP; |
| 2999 | */ |
| 3000 | softc->saved_comp_algorithm = softc->comp_algorithm; |
| 3001 | softc->comp_algorithm = 0; |
| 3002 | } else { |
| 3003 | softc->flags |= SA_FLAG_COMP_ENABLED; |
| 3004 | softc->comp_algorithm = calg; |
| 3005 | } |
| 3006 | } |
| 3007 | |
| 3008 | free(mode_buffer, M_TEMP); |
| 3009 | return (error); |
| 3010 | } |
| 3011 | |
| 3012 | static void |
| 3013 | saprevent(struct cam_periph *periph, int action) |
| 3014 | { |
| 3015 | struct sa_softc *softc; |
| 3016 | union ccb *ccb; |
| 3017 | int error, sf; |
| 3018 | |
| 3019 | softc = (struct sa_softc *)periph->softc; |
| 3020 | |
| 3021 | if ((action == PR_ALLOW) && (softc->flags & SA_FLAG_TAPE_LOCKED) == 0) |
| 3022 | return; |
| 3023 | if ((action == PR_PREVENT) && (softc->flags & SA_FLAG_TAPE_LOCKED) != 0) |
| 3024 | return; |
| 3025 | |
| 3026 | /* |
| 3027 | * We can be quiet about illegal requests. |
| 3028 | */ |
| 3029 | if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) { |
| 3030 | sf = 0; |
| 3031 | } else |
| 3032 | sf = SF_QUIET_IR; |
| 3033 | |
| 3034 | ccb = cam_periph_getccb(periph, 1); |
| 3035 | |
| 3036 | /* It is safe to retry this operation */ |
| 3037 | scsi_prevent(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, action, |
| 3038 | SSD_FULL_SIZE, SCSIOP_TIMEOUT); |
| 3039 | |
| 3040 | error = cam_periph_runccb(ccb, saerror, 0, sf, &softc->device_stats); |
| 3041 | QFRLS(ccb); |
| 3042 | if (error == 0) { |
| 3043 | if (action == PR_ALLOW) |
| 3044 | softc->flags &= ~SA_FLAG_TAPE_LOCKED; |
| 3045 | else |
| 3046 | softc->flags |= SA_FLAG_TAPE_LOCKED; |
| 3047 | } |
| 3048 | |
| 3049 | xpt_release_ccb(ccb); |
| 3050 | } |
| 3051 | |
| 3052 | static int |
| 3053 | sarewind(struct cam_periph *periph) |
| 3054 | { |
| 3055 | union ccb *ccb; |
| 3056 | struct sa_softc *softc; |
| 3057 | int error; |
| 3058 | |
| 3059 | softc = (struct sa_softc *)periph->softc; |
| 3060 | |
| 3061 | ccb = cam_periph_getccb(periph, 1); |
| 3062 | |
| 3063 | /* It is safe to retry this operation */ |
| 3064 | scsi_rewind(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, FALSE, |
| 3065 | SSD_FULL_SIZE, REWIND_TIMEOUT); |
| 3066 | |
| 3067 | softc->dsreg = MTIO_DSREG_REW; |
| 3068 | error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats); |
| 3069 | softc->dsreg = MTIO_DSREG_REST; |
| 3070 | |
| 3071 | if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) |
| 3072 | cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE); |
| 3073 | |
| 3074 | xpt_release_ccb(ccb); |
| 3075 | if (error == 0) |
| 3076 | softc->fileno = softc->blkno = (daddr_t) 0; |
| 3077 | else |
| 3078 | softc->fileno = softc->blkno = (daddr_t) -1; |
| 3079 | return (error); |
| 3080 | } |
| 3081 | |
| 3082 | static int |
| 3083 | saspace(struct cam_periph *periph, int count, scsi_space_code code) |
| 3084 | { |
| 3085 | union ccb *ccb; |
| 3086 | struct sa_softc *softc; |
| 3087 | int error; |
| 3088 | |
| 3089 | softc = (struct sa_softc *)periph->softc; |
| 3090 | |
| 3091 | ccb = cam_periph_getccb(periph, 1); |
| 3092 | |
| 3093 | /* This cannot be retried */ |
| 3094 | |
| 3095 | scsi_space(&ccb->csio, 0, sadone, MSG_SIMPLE_Q_TAG, code, count, |
| 3096 | SSD_FULL_SIZE, SPACE_TIMEOUT); |
| 3097 | |
| 3098 | /* |
| 3099 | * Clear residual because we will be using it. |
| 3100 | */ |
| 3101 | softc->last_ctl_resid = 0; |
| 3102 | |
| 3103 | softc->dsreg = (count < 0)? MTIO_DSREG_REV : MTIO_DSREG_FWD; |
| 3104 | error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats); |
| 3105 | softc->dsreg = MTIO_DSREG_REST; |
| 3106 | |
| 3107 | if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) |
| 3108 | cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE); |
| 3109 | |
| 3110 | xpt_release_ccb(ccb); |
| 3111 | |
| 3112 | /* |
| 3113 | * If a spacing operation has failed, we need to invalidate |
| 3114 | * this mount. |
| 3115 | * |
| 3116 | * If the spacing operation was setmarks or to end of recorded data, |
| 3117 | * we no longer know our relative position. |
| 3118 | * |
| 3119 | * If the spacing operations was spacing files in reverse, we |
| 3120 | * take account of the residual, but still check against less |
| 3121 | * than zero- if we've gone negative, we must have hit BOT. |
| 3122 | * |
| 3123 | * If the spacing operations was spacing records in reverse and |
| 3124 | * we have a residual, we've either hit BOT or hit a filemark. |
| 3125 | * In the former case, we know our new record number (0). In |
| 3126 | * the latter case, we have absolutely no idea what the real |
| 3127 | * record number is- we've stopped between the end of the last |
| 3128 | * record in the previous file and the filemark that stopped |
| 3129 | * our spacing backwards. |
| 3130 | */ |
| 3131 | if (error) { |
| 3132 | softc->fileno = softc->blkno = (daddr_t) -1; |
| 3133 | } else if (code == SS_SETMARKS || code == SS_EOD) { |
| 3134 | softc->fileno = softc->blkno = (daddr_t) -1; |
| 3135 | } else if (code == SS_FILEMARKS && softc->fileno != (daddr_t) -1) { |
| 3136 | softc->fileno += (count - softc->last_ctl_resid); |
| 3137 | if (softc->fileno < 0) /* we must of hit BOT */ |
| 3138 | softc->fileno = 0; |
| 3139 | softc->blkno = 0; |
| 3140 | } else if (code == SS_BLOCKS && softc->blkno != (daddr_t) -1) { |
| 3141 | softc->blkno += (count - softc->last_ctl_resid); |
| 3142 | if (count < 0) { |
| 3143 | if (softc->last_ctl_resid || softc->blkno < 0) { |
| 3144 | if (softc->fileno == 0) { |
| 3145 | softc->blkno = 0; |
| 3146 | } else { |
| 3147 | softc->blkno = (daddr_t) -1; |
| 3148 | } |
| 3149 | } |
| 3150 | } |
| 3151 | } |
| 3152 | return (error); |
| 3153 | } |
| 3154 | |
| 3155 | static int |
| 3156 | sawritefilemarks(struct cam_periph *periph, int nmarks, int setmarks) |
| 3157 | { |
| 3158 | union ccb *ccb; |
| 3159 | struct sa_softc *softc; |
| 3160 | int error, nwm = 0; |
| 3161 | |
| 3162 | softc = (struct sa_softc *)periph->softc; |
| 3163 | |
| 3164 | ccb = cam_periph_getccb(periph, 1); |
| 3165 | /* |
| 3166 | * Clear residual because we will be using it. |
| 3167 | */ |
| 3168 | softc->last_ctl_resid = 0; |
| 3169 | |
| 3170 | softc->dsreg = MTIO_DSREG_FMK; |
| 3171 | /* this *must* not be retried */ |
| 3172 | scsi_write_filemarks(&ccb->csio, 0, sadone, MSG_SIMPLE_Q_TAG, |
| 3173 | FALSE, setmarks, nmarks, SSD_FULL_SIZE, IO_TIMEOUT); |
| 3174 | softc->dsreg = MTIO_DSREG_REST; |
| 3175 | |
| 3176 | |
| 3177 | error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats); |
| 3178 | |
| 3179 | if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) |
| 3180 | cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE); |
| 3181 | |
| 3182 | if (error == 0 && nmarks) { |
| 3183 | struct sa_softc *softc = (struct sa_softc *)periph->softc; |
| 3184 | nwm = nmarks - softc->last_ctl_resid; |
| 3185 | softc->filemarks += nwm; |
| 3186 | } |
| 3187 | |
| 3188 | xpt_release_ccb(ccb); |
| 3189 | |
| 3190 | /* |
| 3191 | * Update relative positions (if we're doing that). |
| 3192 | */ |
| 3193 | if (error) { |
| 3194 | softc->fileno = softc->blkno = (daddr_t) -1; |
| 3195 | } else if (softc->fileno != (daddr_t) -1) { |
| 3196 | softc->fileno += nwm; |
| 3197 | softc->blkno = 0; |
| 3198 | } |
| 3199 | return (error); |
| 3200 | } |
| 3201 | |
| 3202 | static int |
| 3203 | sardpos(struct cam_periph *periph, int hard, u_int32_t *blkptr) |
| 3204 | { |
| 3205 | struct scsi_tape_position_data loc; |
| 3206 | union ccb *ccb; |
| 3207 | struct sa_softc *softc = (struct sa_softc *)periph->softc; |
| 3208 | int error; |
| 3209 | |
| 3210 | /* |
| 3211 | * We try and flush any buffered writes here if we were writing |
| 3212 | * and we're trying to get hardware block position. It eats |
| 3213 | * up performance substantially, but I'm wary of drive firmware. |
| 3214 | * |
| 3215 | * I think that *logical* block position is probably okay- |
| 3216 | * but hardware block position might have to wait for data |
| 3217 | * to hit media to be valid. Caveat Emptor. |
| 3218 | */ |
| 3219 | |
| 3220 | if (hard && (softc->flags & SA_FLAG_TAPE_WRITTEN)) { |
| 3221 | error = sawritefilemarks(periph, 0, 0); |
| 3222 | if (error && error != EACCES) |
| 3223 | return (error); |
| 3224 | } |
| 3225 | |
| 3226 | ccb = cam_periph_getccb(periph, 1); |
| 3227 | scsi_read_position(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG, |
| 3228 | hard, &loc, SSD_FULL_SIZE, SCSIOP_TIMEOUT); |
| 3229 | softc->dsreg = MTIO_DSREG_RBSY; |
| 3230 | error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats); |
| 3231 | softc->dsreg = MTIO_DSREG_REST; |
| 3232 | if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) |
| 3233 | cam_release_devq(ccb->ccb_h.path, 0, 0, 0, 0); |
| 3234 | |
| 3235 | if (error == 0) { |
| 3236 | if (loc.flags & SA_RPOS_UNCERTAIN) { |
| 3237 | error = EINVAL; /* nothing is certain */ |
| 3238 | } else { |
| 3239 | *blkptr = scsi_4btoul(loc.firstblk); |
| 3240 | } |
| 3241 | } |
| 3242 | |
| 3243 | xpt_release_ccb(ccb); |
| 3244 | return (error); |
| 3245 | } |
| 3246 | |
| 3247 | static int |
| 3248 | sasetpos(struct cam_periph *periph, int hard, u_int32_t *blkptr) |
| 3249 | { |
| 3250 | union ccb *ccb; |
| 3251 | struct sa_softc *softc; |
| 3252 | int error; |
| 3253 | |
| 3254 | /* |
| 3255 | * We used to try and flush any buffered writes here. |
| 3256 | * Now we push this onto user applications to either |
| 3257 | * flush the pending writes themselves (via a zero count |
| 3258 | * WRITE FILEMARKS command) or they can trust their tape |
| 3259 | * drive to do this correctly for them. |
| 3260 | */ |
| 3261 | |
| 3262 | softc = (struct sa_softc *)periph->softc; |
| 3263 | ccb = cam_periph_getccb(periph, 1); |
| 3264 | |
| 3265 | |
| 3266 | scsi_set_position(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG, |
| 3267 | hard, *blkptr, SSD_FULL_SIZE, SPACE_TIMEOUT); |
| 3268 | |
| 3269 | |
| 3270 | softc->dsreg = MTIO_DSREG_POS; |
| 3271 | error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats); |
| 3272 | softc->dsreg = MTIO_DSREG_REST; |
| 3273 | if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) |
| 3274 | cam_release_devq(ccb->ccb_h.path, 0, 0, 0, 0); |
| 3275 | xpt_release_ccb(ccb); |
| 3276 | /* |
| 3277 | * Note relative file && block number position as now unknown. |
| 3278 | */ |
| 3279 | softc->fileno = softc->blkno = (daddr_t) -1; |
| 3280 | return (error); |
| 3281 | } |
| 3282 | |
| 3283 | static int |
| 3284 | saretension(struct cam_periph *periph) |
| 3285 | { |
| 3286 | union ccb *ccb; |
| 3287 | struct sa_softc *softc; |
| 3288 | int error; |
| 3289 | |
| 3290 | softc = (struct sa_softc *)periph->softc; |
| 3291 | |
| 3292 | ccb = cam_periph_getccb(periph, 1); |
| 3293 | |
| 3294 | /* It is safe to retry this operation */ |
| 3295 | scsi_load_unload(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, FALSE, |
| 3296 | FALSE, TRUE, TRUE, SSD_FULL_SIZE, ERASE_TIMEOUT); |
| 3297 | |
| 3298 | softc->dsreg = MTIO_DSREG_TEN; |
| 3299 | error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats); |
| 3300 | softc->dsreg = MTIO_DSREG_REST; |
| 3301 | |
| 3302 | if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) |
| 3303 | cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE); |
| 3304 | xpt_release_ccb(ccb); |
| 3305 | if (error == 0) |
| 3306 | softc->fileno = softc->blkno = (daddr_t) 0; |
| 3307 | else |
| 3308 | softc->fileno = softc->blkno = (daddr_t) -1; |
| 3309 | return (error); |
| 3310 | } |
| 3311 | |
| 3312 | static int |
| 3313 | sareservereleaseunit(struct cam_periph *periph, int reserve) |
| 3314 | { |
| 3315 | union ccb *ccb; |
| 3316 | struct sa_softc *softc; |
| 3317 | int error; |
| 3318 | |
| 3319 | softc = (struct sa_softc *)periph->softc; |
| 3320 | ccb = cam_periph_getccb(periph, 1); |
| 3321 | |
| 3322 | /* It is safe to retry this operation */ |
| 3323 | scsi_reserve_release_unit(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, |
| 3324 | FALSE, 0, SSD_FULL_SIZE, SCSIOP_TIMEOUT, reserve); |
| 3325 | softc->dsreg = MTIO_DSREG_RBSY; |
| 3326 | error = cam_periph_runccb(ccb, saerror, 0, |
| 3327 | SF_RETRY_UA | SF_NO_PRINT, &softc->device_stats); |
| 3328 | softc->dsreg = MTIO_DSREG_REST; |
| 3329 | QFRLS(ccb); |
| 3330 | xpt_release_ccb(ccb); |
| 3331 | |
| 3332 | /* |
| 3333 | * If the error was Illegal Request, then the device doesn't support |
| 3334 | * RESERVE/RELEASE. This is not an error. |
| 3335 | */ |
| 3336 | if (error == EINVAL) { |
| 3337 | error = 0; |
| 3338 | } |
| 3339 | |
| 3340 | return (error); |
| 3341 | } |
| 3342 | |
| 3343 | static int |
| 3344 | saloadunload(struct cam_periph *periph, int load) |
| 3345 | { |
| 3346 | union ccb *ccb; |
| 3347 | struct sa_softc *softc; |
| 3348 | int error; |
| 3349 | |
| 3350 | softc = (struct sa_softc *)periph->softc; |
| 3351 | |
| 3352 | ccb = cam_periph_getccb(periph, 1); |
| 3353 | |
| 3354 | /* It is safe to retry this operation */ |
| 3355 | scsi_load_unload(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, FALSE, |
| 3356 | FALSE, FALSE, load, SSD_FULL_SIZE, REWIND_TIMEOUT); |
| 3357 | |
| 3358 | softc->dsreg = (load)? MTIO_DSREG_LD : MTIO_DSREG_UNL; |
| 3359 | error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats); |
| 3360 | softc->dsreg = MTIO_DSREG_REST; |
| 3361 | QFRLS(ccb); |
| 3362 | xpt_release_ccb(ccb); |
| 3363 | |
| 3364 | if (error || load == 0) |
| 3365 | softc->fileno = softc->blkno = (daddr_t) -1; |
| 3366 | else if (error == 0) |
| 3367 | softc->fileno = softc->blkno = (daddr_t) 0; |
| 3368 | return (error); |
| 3369 | } |
| 3370 | |
| 3371 | static int |
| 3372 | saerase(struct cam_periph *periph, int longerase) |
| 3373 | { |
| 3374 | |
| 3375 | union ccb *ccb; |
| 3376 | struct sa_softc *softc; |
| 3377 | int error; |
| 3378 | |
| 3379 | softc = (struct sa_softc *)periph->softc; |
| 3380 | |
| 3381 | ccb = cam_periph_getccb(periph, 1); |
| 3382 | |
| 3383 | scsi_erase(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG, FALSE, longerase, |
| 3384 | SSD_FULL_SIZE, ERASE_TIMEOUT); |
| 3385 | |
| 3386 | softc->dsreg = MTIO_DSREG_ZER; |
| 3387 | error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats); |
| 3388 | softc->dsreg = MTIO_DSREG_REST; |
| 3389 | |
| 3390 | if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) |
| 3391 | cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE); |
| 3392 | xpt_release_ccb(ccb); |
| 3393 | return (error); |
| 3394 | } |
| 3395 | |
| 3396 | #endif /* _KERNEL */ |
| 3397 | |
| 3398 | /* |
| 3399 | * Read tape block limits command. |
| 3400 | */ |
| 3401 | void |
| 3402 | scsi_read_block_limits(struct ccb_scsiio *csio, u_int32_t retries, |
| 3403 | void (*cbfcnp)(struct cam_periph *, union ccb *), |
| 3404 | u_int8_t tag_action, |
| 3405 | struct scsi_read_block_limits_data *rlimit_buf, |
| 3406 | u_int8_t sense_len, u_int32_t timeout) |
| 3407 | { |
| 3408 | struct scsi_read_block_limits *scsi_cmd; |
| 3409 | |
| 3410 | cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_IN, tag_action, |
| 3411 | (u_int8_t *)rlimit_buf, sizeof(*rlimit_buf), sense_len, |
| 3412 | sizeof(*scsi_cmd), timeout); |
| 3413 | |
| 3414 | scsi_cmd = (struct scsi_read_block_limits *)&csio->cdb_io.cdb_bytes; |
| 3415 | bzero(scsi_cmd, sizeof(*scsi_cmd)); |
| 3416 | scsi_cmd->opcode = READ_BLOCK_LIMITS; |
| 3417 | } |
| 3418 | |
| 3419 | void |
| 3420 | scsi_sa_read_write(struct ccb_scsiio *csio, u_int32_t retries, |
| 3421 | void (*cbfcnp)(struct cam_periph *, union ccb *), |
| 3422 | u_int8_t tag_action, int readop, int sli, |
| 3423 | int fixed, u_int32_t length, u_int8_t *data_ptr, |
| 3424 | u_int32_t dxfer_len, u_int8_t sense_len, u_int32_t timeout) |
| 3425 | { |
| 3426 | struct scsi_sa_rw *scsi_cmd; |
| 3427 | |
| 3428 | scsi_cmd = (struct scsi_sa_rw *)&csio->cdb_io.cdb_bytes; |
| 3429 | scsi_cmd->opcode = readop ? SA_READ : SA_WRITE; |
| 3430 | scsi_cmd->sli_fixed = 0; |
| 3431 | if (sli && readop) |
| 3432 | scsi_cmd->sli_fixed |= SAR_SLI; |
| 3433 | if (fixed) |
| 3434 | scsi_cmd->sli_fixed |= SARW_FIXED; |
| 3435 | scsi_ulto3b(length, scsi_cmd->length); |
| 3436 | scsi_cmd->control = 0; |
| 3437 | |
| 3438 | cam_fill_csio(csio, retries, cbfcnp, readop ? CAM_DIR_IN : CAM_DIR_OUT, |
| 3439 | tag_action, data_ptr, dxfer_len, sense_len, |
| 3440 | sizeof(*scsi_cmd), timeout); |
| 3441 | } |
| 3442 | |
| 3443 | void |
| 3444 | scsi_load_unload(struct ccb_scsiio *csio, u_int32_t retries, |
| 3445 | void (*cbfcnp)(struct cam_periph *, union ccb *), |
| 3446 | u_int8_t tag_action, int immediate, int eot, |
| 3447 | int reten, int load, u_int8_t sense_len, |
| 3448 | u_int32_t timeout) |
| 3449 | { |
| 3450 | struct scsi_load_unload *scsi_cmd; |
| 3451 | |
| 3452 | scsi_cmd = (struct scsi_load_unload *)&csio->cdb_io.cdb_bytes; |
| 3453 | bzero(scsi_cmd, sizeof(*scsi_cmd)); |
| 3454 | scsi_cmd->opcode = LOAD_UNLOAD; |
| 3455 | if (immediate) |
| 3456 | scsi_cmd->immediate = SLU_IMMED; |
| 3457 | if (eot) |
| 3458 | scsi_cmd->eot_reten_load |= SLU_EOT; |
| 3459 | if (reten) |
| 3460 | scsi_cmd->eot_reten_load |= SLU_RETEN; |
| 3461 | if (load) |
| 3462 | scsi_cmd->eot_reten_load |= SLU_LOAD; |
| 3463 | |
| 3464 | cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, |
| 3465 | NULL, 0, sense_len, sizeof(*scsi_cmd), timeout); |
| 3466 | } |
| 3467 | |
| 3468 | void |
| 3469 | scsi_rewind(struct ccb_scsiio *csio, u_int32_t retries, |
| 3470 | void (*cbfcnp)(struct cam_periph *, union ccb *), |
| 3471 | u_int8_t tag_action, int immediate, u_int8_t sense_len, |
| 3472 | u_int32_t timeout) |
| 3473 | { |
| 3474 | struct scsi_rewind *scsi_cmd; |
| 3475 | |
| 3476 | scsi_cmd = (struct scsi_rewind *)&csio->cdb_io.cdb_bytes; |
| 3477 | bzero(scsi_cmd, sizeof(*scsi_cmd)); |
| 3478 | scsi_cmd->opcode = REWIND; |
| 3479 | if (immediate) |
| 3480 | scsi_cmd->immediate = SREW_IMMED; |
| 3481 | |
| 3482 | cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL, |
| 3483 | 0, sense_len, sizeof(*scsi_cmd), timeout); |
| 3484 | } |
| 3485 | |
| 3486 | void |
| 3487 | scsi_space(struct ccb_scsiio *csio, u_int32_t retries, |
| 3488 | void (*cbfcnp)(struct cam_periph *, union ccb *), |
| 3489 | u_int8_t tag_action, scsi_space_code code, |
| 3490 | u_int32_t count, u_int8_t sense_len, u_int32_t timeout) |
| 3491 | { |
| 3492 | struct scsi_space *scsi_cmd; |
| 3493 | |
| 3494 | scsi_cmd = (struct scsi_space *)&csio->cdb_io.cdb_bytes; |
| 3495 | scsi_cmd->opcode = SPACE; |
| 3496 | scsi_cmd->code = code; |
| 3497 | scsi_ulto3b(count, scsi_cmd->count); |
| 3498 | scsi_cmd->control = 0; |
| 3499 | |
| 3500 | cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL, |
| 3501 | 0, sense_len, sizeof(*scsi_cmd), timeout); |
| 3502 | } |
| 3503 | |
| 3504 | void |
| 3505 | scsi_write_filemarks(struct ccb_scsiio *csio, u_int32_t retries, |
| 3506 | void (*cbfcnp)(struct cam_periph *, union ccb *), |
| 3507 | u_int8_t tag_action, int immediate, int setmark, |
| 3508 | u_int32_t num_marks, u_int8_t sense_len, |
| 3509 | u_int32_t timeout) |
| 3510 | { |
| 3511 | struct scsi_write_filemarks *scsi_cmd; |
| 3512 | |
| 3513 | scsi_cmd = (struct scsi_write_filemarks *)&csio->cdb_io.cdb_bytes; |
| 3514 | bzero(scsi_cmd, sizeof(*scsi_cmd)); |
| 3515 | scsi_cmd->opcode = WRITE_FILEMARKS; |
| 3516 | if (immediate) |
| 3517 | scsi_cmd->byte2 |= SWFMRK_IMMED; |
| 3518 | if (setmark) |
| 3519 | scsi_cmd->byte2 |= SWFMRK_WSMK; |
| 3520 | |
| 3521 | scsi_ulto3b(num_marks, scsi_cmd->num_marks); |
| 3522 | |
| 3523 | cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL, |
| 3524 | 0, sense_len, sizeof(*scsi_cmd), timeout); |
| 3525 | } |
| 3526 | |
| 3527 | /* |
| 3528 | * The reserve and release unit commands differ only by their opcodes. |
| 3529 | */ |
| 3530 | void |
| 3531 | scsi_reserve_release_unit(struct ccb_scsiio *csio, u_int32_t retries, |
| 3532 | void (*cbfcnp)(struct cam_periph *, union ccb *), |
| 3533 | u_int8_t tag_action, int third_party, |
| 3534 | int third_party_id, u_int8_t sense_len, |
| 3535 | u_int32_t timeout, int reserve) |
| 3536 | { |
| 3537 | struct scsi_reserve_release_unit *scsi_cmd; |
| 3538 | |
| 3539 | scsi_cmd = (struct scsi_reserve_release_unit *)&csio->cdb_io.cdb_bytes; |
| 3540 | bzero(scsi_cmd, sizeof(*scsi_cmd)); |
| 3541 | |
| 3542 | if (reserve) |
| 3543 | scsi_cmd->opcode = RESERVE_UNIT; |
| 3544 | else |
| 3545 | scsi_cmd->opcode = RELEASE_UNIT; |
| 3546 | |
| 3547 | if (third_party) { |
| 3548 | scsi_cmd->lun_thirdparty |= SRRU_3RD_PARTY; |
| 3549 | scsi_cmd->lun_thirdparty |= |
| 3550 | ((third_party_id << SRRU_3RD_SHAMT) & SRRU_3RD_MASK); |
| 3551 | } |
| 3552 | |
| 3553 | cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL, |
| 3554 | 0, sense_len, sizeof(*scsi_cmd), timeout); |
| 3555 | } |
| 3556 | |
| 3557 | void |
| 3558 | scsi_erase(struct ccb_scsiio *csio, u_int32_t retries, |
| 3559 | void (*cbfcnp)(struct cam_periph *, union ccb *), |
| 3560 | u_int8_t tag_action, int immediate, int long_erase, |
| 3561 | u_int8_t sense_len, u_int32_t timeout) |
| 3562 | { |
| 3563 | struct scsi_erase *scsi_cmd; |
| 3564 | |
| 3565 | scsi_cmd = (struct scsi_erase *)&csio->cdb_io.cdb_bytes; |
| 3566 | bzero(scsi_cmd, sizeof(*scsi_cmd)); |
| 3567 | |
| 3568 | scsi_cmd->opcode = ERASE; |
| 3569 | |
| 3570 | if (immediate) |
| 3571 | scsi_cmd->lun_imm_long |= SE_IMMED; |
| 3572 | |
| 3573 | if (long_erase) |
| 3574 | scsi_cmd->lun_imm_long |= SE_LONG; |
| 3575 | |
| 3576 | cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL, |
| 3577 | 0, sense_len, sizeof(*scsi_cmd), timeout); |
| 3578 | } |
| 3579 | |
| 3580 | /* |
| 3581 | * Read Tape Position command. |
| 3582 | */ |
| 3583 | void |
| 3584 | scsi_read_position(struct ccb_scsiio *csio, u_int32_t retries, |
| 3585 | void (*cbfcnp)(struct cam_periph *, union ccb *), |
| 3586 | u_int8_t tag_action, int hardsoft, |
| 3587 | struct scsi_tape_position_data *sbp, |
| 3588 | u_int8_t sense_len, u_int32_t timeout) |
| 3589 | { |
| 3590 | struct scsi_tape_read_position *scmd; |
| 3591 | |
| 3592 | cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_IN, tag_action, |
| 3593 | (u_int8_t *)sbp, sizeof (*sbp), sense_len, sizeof(*scmd), timeout); |
| 3594 | scmd = (struct scsi_tape_read_position *)&csio->cdb_io.cdb_bytes; |
| 3595 | bzero(scmd, sizeof(*scmd)); |
| 3596 | scmd->opcode = READ_POSITION; |
| 3597 | scmd->byte1 = hardsoft; |
| 3598 | } |
| 3599 | |
| 3600 | /* |
| 3601 | * Set Tape Position command. |
| 3602 | */ |
| 3603 | void |
| 3604 | scsi_set_position(struct ccb_scsiio *csio, u_int32_t retries, |
| 3605 | void (*cbfcnp)(struct cam_periph *, union ccb *), |
| 3606 | u_int8_t tag_action, int hardsoft, u_int32_t blkno, |
| 3607 | u_int8_t sense_len, u_int32_t timeout) |
| 3608 | { |
| 3609 | struct scsi_tape_locate *scmd; |
| 3610 | |
| 3611 | cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, |
| 3612 | (u_int8_t *)NULL, 0, sense_len, sizeof(*scmd), timeout); |
| 3613 | scmd = (struct scsi_tape_locate *)&csio->cdb_io.cdb_bytes; |
| 3614 | bzero(scmd, sizeof(*scmd)); |
| 3615 | scmd->opcode = LOCATE; |
| 3616 | if (hardsoft) |
| 3617 | scmd->byte1 |= SA_SPOS_BT; |
| 3618 | scsi_ulto4b(blkno, scmd->blkaddr); |
| 3619 | } |