1 /*- 2 * Implementation of SCSI Sequential Access Peripheral driver for CAM. 3 * 4 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 5 * 6 * Copyright (c) 1999, 2000 Matthew Jacob 7 * Copyright (c) 2013, 2014, 2015 Spectra Logic Corporation 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 #include <sys/cdefs.h> 33 __FBSDID("$FreeBSD$"); 34 35 #include <sys/param.h> 36 #include <sys/queue.h> 37 #ifdef _KERNEL 38 #include <sys/systm.h> 39 #include <sys/kernel.h> 40 #endif 41 #include <sys/types.h> 42 #include <sys/time.h> 43 #include <sys/bio.h> 44 #include <sys/limits.h> 45 #include <sys/malloc.h> 46 #include <sys/mtio.h> 47 #ifdef _KERNEL 48 #include <sys/conf.h> 49 #include <sys/sbuf.h> 50 #include <sys/sysctl.h> 51 #include <sys/taskqueue.h> 52 #endif 53 #include <sys/fcntl.h> 54 #include <sys/devicestat.h> 55 56 #ifndef _KERNEL 57 #include <stdio.h> 58 #include <string.h> 59 #endif 60 61 #include <cam/cam.h> 62 #include <cam/cam_ccb.h> 63 #include <cam/cam_periph.h> 64 #include <cam/cam_xpt_periph.h> 65 #include <cam/cam_debug.h> 66 67 #include <cam/scsi/scsi_all.h> 68 #include <cam/scsi/scsi_message.h> 69 #include <cam/scsi/scsi_sa.h> 70 71 #ifdef _KERNEL 72 73 #include "opt_sa.h" 74 75 #ifndef SA_IO_TIMEOUT 76 #define SA_IO_TIMEOUT 32 77 #endif 78 #ifndef SA_SPACE_TIMEOUT 79 #define SA_SPACE_TIMEOUT 1 * 60 80 #endif 81 #ifndef SA_REWIND_TIMEOUT 82 #define SA_REWIND_TIMEOUT 2 * 60 83 #endif 84 #ifndef SA_ERASE_TIMEOUT 85 #define SA_ERASE_TIMEOUT 4 * 60 86 #endif 87 #ifndef SA_REP_DENSITY_TIMEOUT 88 #define SA_REP_DENSITY_TIMEOUT 90 89 #endif 90 91 #define SCSIOP_TIMEOUT (60 * 1000) /* not an option */ 92 93 #define IO_TIMEOUT (SA_IO_TIMEOUT * 60 * 1000) 94 #define REWIND_TIMEOUT (SA_REWIND_TIMEOUT * 60 * 1000) 95 #define ERASE_TIMEOUT (SA_ERASE_TIMEOUT * 60 * 1000) 96 #define SPACE_TIMEOUT (SA_SPACE_TIMEOUT * 60 * 1000) 97 #define REP_DENSITY_TIMEOUT (SA_REP_DENSITY_TIMEOUT * 60 * 1000) 98 99 /* 100 * Additional options that can be set for config: SA_1FM_AT_EOT 101 */ 102 103 #ifndef UNUSED_PARAMETER 104 #define UNUSED_PARAMETER(x) x = x 105 #endif 106 107 #define QFRLS(ccb) \ 108 if (((ccb)->ccb_h.status & CAM_DEV_QFRZN) != 0) \ 109 cam_release_devq((ccb)->ccb_h.path, 0, 0, 0, FALSE) 110 111 /* 112 * Driver states 113 */ 114 115 static MALLOC_DEFINE(M_SCSISA, "SCSI sa", "SCSI sequential access buffers"); 116 117 typedef enum { 118 SA_STATE_NORMAL, SA_STATE_ABNORMAL 119 } sa_state; 120 121 #define ccb_pflags ppriv_field0 122 #define ccb_bp ppriv_ptr1 123 124 /* bits in ccb_pflags */ 125 #define SA_POSITION_UPDATED 0x1 126 127 128 typedef enum { 129 SA_FLAG_OPEN = 0x0001, 130 SA_FLAG_FIXED = 0x0002, 131 SA_FLAG_TAPE_LOCKED = 0x0004, 132 SA_FLAG_TAPE_MOUNTED = 0x0008, 133 SA_FLAG_TAPE_WP = 0x0010, 134 SA_FLAG_TAPE_WRITTEN = 0x0020, 135 SA_FLAG_EOM_PENDING = 0x0040, 136 SA_FLAG_EIO_PENDING = 0x0080, 137 SA_FLAG_EOF_PENDING = 0x0100, 138 SA_FLAG_ERR_PENDING = (SA_FLAG_EOM_PENDING|SA_FLAG_EIO_PENDING| 139 SA_FLAG_EOF_PENDING), 140 SA_FLAG_INVALID = 0x0200, 141 SA_FLAG_COMP_ENABLED = 0x0400, 142 SA_FLAG_COMP_SUPP = 0x0800, 143 SA_FLAG_COMP_UNSUPP = 0x1000, 144 SA_FLAG_TAPE_FROZEN = 0x2000, 145 SA_FLAG_PROTECT_SUPP = 0x4000, 146 147 SA_FLAG_COMPRESSION = (SA_FLAG_COMP_SUPP|SA_FLAG_COMP_ENABLED| 148 SA_FLAG_COMP_UNSUPP), 149 SA_FLAG_SCTX_INIT = 0x8000 150 } sa_flags; 151 152 typedef enum { 153 SA_MODE_REWIND = 0x00, 154 SA_MODE_NOREWIND = 0x01, 155 SA_MODE_OFFLINE = 0x02 156 } sa_mode; 157 158 typedef enum { 159 SA_PARAM_NONE = 0x000, 160 SA_PARAM_BLOCKSIZE = 0x001, 161 SA_PARAM_DENSITY = 0x002, 162 SA_PARAM_COMPRESSION = 0x004, 163 SA_PARAM_BUFF_MODE = 0x008, 164 SA_PARAM_NUMBLOCKS = 0x010, 165 SA_PARAM_WP = 0x020, 166 SA_PARAM_SPEED = 0x040, 167 SA_PARAM_DENSITY_EXT = 0x080, 168 SA_PARAM_LBP = 0x100, 169 SA_PARAM_ALL = 0x1ff 170 } sa_params; 171 172 typedef enum { 173 SA_QUIRK_NONE = 0x000, 174 SA_QUIRK_NOCOMP = 0x001, /* Can't deal with compression at all*/ 175 SA_QUIRK_FIXED = 0x002, /* Force fixed mode */ 176 SA_QUIRK_VARIABLE = 0x004, /* Force variable mode */ 177 SA_QUIRK_2FM = 0x008, /* Needs Two File Marks at EOD */ 178 SA_QUIRK_1FM = 0x010, /* No more than 1 File Mark at EOD */ 179 SA_QUIRK_NODREAD = 0x020, /* Don't try and dummy read density */ 180 SA_QUIRK_NO_MODESEL = 0x040, /* Don't do mode select at all */ 181 SA_QUIRK_NO_CPAGE = 0x080, /* Don't use DEVICE COMPRESSION page */ 182 SA_QUIRK_NO_LONG_POS = 0x100 /* No long position information */ 183 } sa_quirks; 184 185 #define SA_QUIRK_BIT_STRING \ 186 "\020" \ 187 "\001NOCOMP" \ 188 "\002FIXED" \ 189 "\003VARIABLE" \ 190 "\0042FM" \ 191 "\0051FM" \ 192 "\006NODREAD" \ 193 "\007NO_MODESEL" \ 194 "\010NO_CPAGE" \ 195 "\011NO_LONG_POS" 196 197 #define SAMODE(z) (dev2unit(z) & 0x3) 198 #define SA_IS_CTRL(z) (dev2unit(z) & (1 << 4)) 199 200 #define SA_NOT_CTLDEV 0 201 #define SA_CTLDEV 1 202 203 #define SA_ATYPE_R 0 204 #define SA_ATYPE_NR 1 205 #define SA_ATYPE_ER 2 206 #define SA_NUM_ATYPES 3 207 208 #define SAMINOR(ctl, access) \ 209 ((ctl << 4) | (access & 0x3)) 210 211 struct sa_devs { 212 struct cdev *ctl_dev; 213 struct cdev *r_dev; 214 struct cdev *nr_dev; 215 struct cdev *er_dev; 216 }; 217 218 #define SASBADDBASE(sb, indent, data, xfmt, name, type, xsize, desc) \ 219 sbuf_printf(sb, "%*s<%s type=\"%s\" size=\"%zd\" " \ 220 "fmt=\"%s\" desc=\"%s\">" #xfmt "</%s>\n", indent, "", \ 221 #name, #type, xsize, #xfmt, desc ? desc : "", data, #name); 222 223 #define SASBADDINT(sb, indent, data, fmt, name) \ 224 SASBADDBASE(sb, indent, data, fmt, name, int, sizeof(data), \ 225 NULL) 226 227 #define SASBADDINTDESC(sb, indent, data, fmt, name, desc) \ 228 SASBADDBASE(sb, indent, data, fmt, name, int, sizeof(data), \ 229 desc) 230 231 #define SASBADDUINT(sb, indent, data, fmt, name) \ 232 SASBADDBASE(sb, indent, data, fmt, name, uint, sizeof(data), \ 233 NULL) 234 235 #define SASBADDUINTDESC(sb, indent, data, fmt, name, desc) \ 236 SASBADDBASE(sb, indent, data, fmt, name, uint, sizeof(data), \ 237 desc) 238 239 #define SASBADDFIXEDSTR(sb, indent, data, fmt, name) \ 240 SASBADDBASE(sb, indent, data, fmt, name, str, sizeof(data), \ 241 NULL) 242 243 #define SASBADDFIXEDSTRDESC(sb, indent, data, fmt, name, desc) \ 244 SASBADDBASE(sb, indent, data, fmt, name, str, sizeof(data), \ 245 desc) 246 247 #define SASBADDVARSTR(sb, indent, data, fmt, name, maxlen) \ 248 SASBADDBASE(sb, indent, data, fmt, name, str, maxlen, NULL) 249 250 #define SASBADDVARSTRDESC(sb, indent, data, fmt, name, maxlen, desc) \ 251 SASBADDBASE(sb, indent, data, fmt, name, str, maxlen, desc) 252 253 #define SASBADDNODE(sb, indent, name) { \ 254 sbuf_printf(sb, "%*s<%s type=\"%s\">\n", indent, "", #name, \ 255 "node"); \ 256 indent += 2; \ 257 } 258 259 #define SASBADDNODENUM(sb, indent, name, num) { \ 260 sbuf_printf(sb, "%*s<%s type=\"%s\" num=\"%d\">\n", indent, "", \ 261 #name, "node", num); \ 262 indent += 2; \ 263 } 264 265 #define SASBENDNODE(sb, indent, name) { \ 266 indent -= 2; \ 267 sbuf_printf(sb, "%*s</%s>\n", indent, "", #name); \ 268 } 269 270 #define SA_DENSITY_TYPES 4 271 272 struct sa_prot_state { 273 int initialized; 274 uint32_t prot_method; 275 uint32_t pi_length; 276 uint32_t lbp_w; 277 uint32_t lbp_r; 278 uint32_t rbdp; 279 }; 280 281 struct sa_prot_info { 282 struct sa_prot_state cur_prot_state; 283 struct sa_prot_state pending_prot_state; 284 }; 285 286 /* 287 * A table mapping protection parameters to their types and values. 288 */ 289 struct sa_prot_map { 290 char *name; 291 mt_param_set_type param_type; 292 off_t offset; 293 uint32_t min_val; 294 uint32_t max_val; 295 uint32_t *value; 296 } sa_prot_table[] = { 297 { "prot_method", MT_PARAM_SET_UNSIGNED, 298 __offsetof(struct sa_prot_state, prot_method), 299 /*min_val*/ 0, /*max_val*/ 255, NULL }, 300 { "pi_length", MT_PARAM_SET_UNSIGNED, 301 __offsetof(struct sa_prot_state, pi_length), 302 /*min_val*/ 0, /*max_val*/ SA_CTRL_DP_PI_LENGTH_MASK, NULL }, 303 { "lbp_w", MT_PARAM_SET_UNSIGNED, 304 __offsetof(struct sa_prot_state, lbp_w), 305 /*min_val*/ 0, /*max_val*/ 1, NULL }, 306 { "lbp_r", MT_PARAM_SET_UNSIGNED, 307 __offsetof(struct sa_prot_state, lbp_r), 308 /*min_val*/ 0, /*max_val*/ 1, NULL }, 309 { "rbdp", MT_PARAM_SET_UNSIGNED, 310 __offsetof(struct sa_prot_state, rbdp), 311 /*min_val*/ 0, /*max_val*/ 1, NULL } 312 }; 313 314 #define SA_NUM_PROT_ENTS nitems(sa_prot_table) 315 316 #define SA_PROT_ENABLED(softc) ((softc->flags & SA_FLAG_PROTECT_SUPP) \ 317 && (softc->prot_info.cur_prot_state.initialized != 0) \ 318 && (softc->prot_info.cur_prot_state.prot_method != 0)) 319 320 #define SA_PROT_LEN(softc) softc->prot_info.cur_prot_state.pi_length 321 322 struct sa_softc { 323 sa_state state; 324 sa_flags flags; 325 sa_quirks quirks; 326 u_int si_flags; 327 struct cam_periph *periph; 328 struct bio_queue_head bio_queue; 329 int queue_count; 330 struct devstat *device_stats; 331 struct sa_devs devs; 332 int open_count; 333 int num_devs_to_destroy; 334 int blk_gran; 335 int blk_mask; 336 int blk_shift; 337 u_int32_t max_blk; 338 u_int32_t min_blk; 339 u_int32_t maxio; 340 u_int32_t cpi_maxio; 341 int allow_io_split; 342 int inject_eom; 343 int set_pews_status; 344 u_int32_t comp_algorithm; 345 u_int32_t saved_comp_algorithm; 346 u_int32_t media_blksize; 347 u_int32_t last_media_blksize; 348 u_int32_t media_numblks; 349 u_int8_t media_density; 350 u_int8_t speed; 351 u_int8_t scsi_rev; 352 u_int8_t dsreg; /* mtio mt_dsreg, redux */ 353 int buffer_mode; 354 int filemarks; 355 union ccb saved_ccb; 356 int last_resid_was_io; 357 uint8_t density_type_bits[SA_DENSITY_TYPES]; 358 int density_info_valid[SA_DENSITY_TYPES]; 359 uint8_t density_info[SA_DENSITY_TYPES][SRDS_MAX_LENGTH]; 360 361 struct sa_prot_info prot_info; 362 363 int sili; 364 int eot_warn; 365 366 /* 367 * Current position information. -1 means that the given value is 368 * unknown. fileno and blkno are always calculated. blkno is 369 * relative to the previous file mark. rep_fileno and rep_blkno 370 * are as reported by the drive, if it supports the long form 371 * report for the READ POSITION command. rep_blkno is relative to 372 * the beginning of the partition. 373 * 374 * bop means that the drive is at the beginning of the partition. 375 * eop means that the drive is between early warning and end of 376 * partition, inside the current partition. 377 * bpew means that the position is in a PEWZ (Programmable Early 378 * Warning Zone) 379 */ 380 daddr_t partition; /* Absolute from BOT */ 381 daddr_t fileno; /* Relative to beginning of partition */ 382 daddr_t blkno; /* Relative to last file mark */ 383 daddr_t rep_blkno; /* Relative to beginning of partition */ 384 daddr_t rep_fileno; /* Relative to beginning of partition */ 385 int bop; /* Beginning of Partition */ 386 int eop; /* End of Partition */ 387 int bpew; /* Beyond Programmable Early Warning */ 388 389 /* 390 * Latched Error Info 391 */ 392 struct { 393 struct scsi_sense_data _last_io_sense; 394 u_int64_t _last_io_resid; 395 u_int8_t _last_io_cdb[CAM_MAX_CDBLEN]; 396 struct scsi_sense_data _last_ctl_sense; 397 u_int64_t _last_ctl_resid; 398 u_int8_t _last_ctl_cdb[CAM_MAX_CDBLEN]; 399 #define last_io_sense errinfo._last_io_sense 400 #define last_io_resid errinfo._last_io_resid 401 #define last_io_cdb errinfo._last_io_cdb 402 #define last_ctl_sense errinfo._last_ctl_sense 403 #define last_ctl_resid errinfo._last_ctl_resid 404 #define last_ctl_cdb errinfo._last_ctl_cdb 405 } errinfo; 406 /* 407 * Misc other flags/state 408 */ 409 u_int32_t 410 : 29, 411 open_rdonly : 1, /* open read-only */ 412 open_pending_mount : 1, /* open pending mount */ 413 ctrl_mode : 1; /* control device open */ 414 415 struct task sysctl_task; 416 struct sysctl_ctx_list sysctl_ctx; 417 struct sysctl_oid *sysctl_tree; 418 }; 419 420 struct sa_quirk_entry { 421 struct scsi_inquiry_pattern inq_pat; /* matching pattern */ 422 sa_quirks quirks; /* specific quirk type */ 423 u_int32_t prefblk; /* preferred blocksize when in fixed mode */ 424 }; 425 426 static struct sa_quirk_entry sa_quirk_table[] = 427 { 428 { 429 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "OnStream", 430 "ADR*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_NODREAD | 431 SA_QUIRK_1FM|SA_QUIRK_NO_MODESEL, 32768 432 }, 433 { 434 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE", 435 "Python 06408*", "*"}, SA_QUIRK_NODREAD, 0 436 }, 437 { 438 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE", 439 "Python 25601*", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_NODREAD, 0 440 }, 441 { 442 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE", 443 "Python*", "*"}, SA_QUIRK_NODREAD, 0 444 }, 445 { 446 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE", 447 "VIPER 150*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512 448 }, 449 { 450 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE", 451 "VIPER 2525 25462", "-011"}, 452 SA_QUIRK_NOCOMP|SA_QUIRK_1FM|SA_QUIRK_NODREAD, 0 453 }, 454 { 455 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE", 456 "VIPER 2525*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 1024 457 }, 458 #if 0 459 { 460 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP", 461 "C15*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_NO_CPAGE, 0, 462 }, 463 #endif 464 { 465 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP", 466 "C56*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0 467 }, 468 { 469 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP", 470 "T20*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512 471 }, 472 { 473 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP", 474 "T4000*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512 475 }, 476 { 477 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP", 478 "HP-88780*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0 479 }, 480 { 481 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "KENNEDY", 482 "*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0 483 }, 484 { 485 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "M4 DATA", 486 "123107 SCSI*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0 487 }, 488 { /* jreynold@primenet.com */ 489 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "Seagate", 490 "STT8000N*", "*"}, SA_QUIRK_1FM, 0 491 }, 492 { /* mike@sentex.net */ 493 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "Seagate", 494 "STT20000*", "*"}, SA_QUIRK_1FM, 0 495 }, 496 { 497 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "SEAGATE", 498 "DAT 06241-XXX", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0 499 }, 500 { 501 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG", 502 " TDC 3600", "U07:"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512 503 }, 504 { 505 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG", 506 " TDC 3800", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512 507 }, 508 { 509 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG", 510 " TDC 4100", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512 511 }, 512 { 513 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG", 514 " TDC 4200", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512 515 }, 516 { 517 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG", 518 " SLR*", "*"}, SA_QUIRK_1FM, 0 519 }, 520 { 521 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "WANGTEK", 522 "5525ES*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512 523 }, 524 { 525 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "WANGTEK", 526 "51000*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 1024 527 } 528 }; 529 530 static d_open_t saopen; 531 static d_close_t saclose; 532 static d_strategy_t sastrategy; 533 static d_ioctl_t saioctl; 534 static periph_init_t sainit; 535 static periph_ctor_t saregister; 536 static periph_oninv_t saoninvalidate; 537 static periph_dtor_t sacleanup; 538 static periph_start_t sastart; 539 static void saasync(void *callback_arg, u_int32_t code, 540 struct cam_path *path, void *arg); 541 static void sadone(struct cam_periph *periph, 542 union ccb *start_ccb); 543 static int saerror(union ccb *ccb, u_int32_t cam_flags, 544 u_int32_t sense_flags); 545 static int samarkswanted(struct cam_periph *); 546 static int sacheckeod(struct cam_periph *periph); 547 static int sagetparams(struct cam_periph *periph, 548 sa_params params_to_get, 549 u_int32_t *blocksize, u_int8_t *density, 550 u_int32_t *numblocks, int *buff_mode, 551 u_int8_t *write_protect, u_int8_t *speed, 552 int *comp_supported, int *comp_enabled, 553 u_int32_t *comp_algorithm, 554 sa_comp_t *comp_page, 555 struct scsi_control_data_prot_subpage 556 *prot_page, int dp_size, 557 int prot_changeable); 558 static int sasetprot(struct cam_periph *periph, 559 struct sa_prot_state *new_prot); 560 static int sasetparams(struct cam_periph *periph, 561 sa_params params_to_set, 562 u_int32_t blocksize, u_int8_t density, 563 u_int32_t comp_algorithm, 564 u_int32_t sense_flags); 565 static int sasetsili(struct cam_periph *periph, 566 struct mtparamset *ps, int num_params); 567 static int saseteotwarn(struct cam_periph *periph, 568 struct mtparamset *ps, int num_params); 569 static void safillprot(struct sa_softc *softc, int *indent, 570 struct sbuf *sb); 571 static void sapopulateprots(struct sa_prot_state *cur_state, 572 struct sa_prot_map *new_table, 573 int table_ents); 574 static struct sa_prot_map *safindprotent(char *name, struct sa_prot_map *table, 575 int table_ents); 576 static int sasetprotents(struct cam_periph *periph, 577 struct mtparamset *ps, int num_params); 578 static struct sa_param_ent *safindparament(struct mtparamset *ps); 579 static int saparamsetlist(struct cam_periph *periph, 580 struct mtsetlist *list, int need_copy); 581 static int saextget(struct cdev *dev, struct cam_periph *periph, 582 struct sbuf *sb, struct mtextget *g); 583 static int saparamget(struct sa_softc *softc, struct sbuf *sb); 584 static void saprevent(struct cam_periph *periph, int action); 585 static int sarewind(struct cam_periph *periph); 586 static int saspace(struct cam_periph *periph, int count, 587 scsi_space_code code); 588 static void sadevgonecb(void *arg); 589 static void sasetupdev(struct sa_softc *softc, struct cdev *dev); 590 static int samount(struct cam_periph *, int, struct cdev *); 591 static int saretension(struct cam_periph *periph); 592 static int sareservereleaseunit(struct cam_periph *periph, 593 int reserve); 594 static int saloadunload(struct cam_periph *periph, int load); 595 static int saerase(struct cam_periph *periph, int longerase); 596 static int sawritefilemarks(struct cam_periph *periph, 597 int nmarks, int setmarks, int immed); 598 static int sagetpos(struct cam_periph *periph); 599 static int sardpos(struct cam_periph *periph, int, u_int32_t *); 600 static int sasetpos(struct cam_periph *periph, int, 601 struct mtlocate *); 602 static void safilldenstypesb(struct sbuf *sb, int *indent, 603 uint8_t *buf, int buf_len, 604 int is_density); 605 static void safilldensitysb(struct sa_softc *softc, int *indent, 606 struct sbuf *sb); 607 608 609 #ifndef SA_DEFAULT_IO_SPLIT 610 #define SA_DEFAULT_IO_SPLIT 0 611 #endif 612 613 static int sa_allow_io_split = SA_DEFAULT_IO_SPLIT; 614 615 /* 616 * Tunable to allow the user to set a global allow_io_split value. Note 617 * that this WILL GO AWAY in FreeBSD 11.0. Silently splitting the I/O up 618 * is bad behavior, because it hides the true tape block size from the 619 * application. 620 */ 621 static SYSCTL_NODE(_kern_cam, OID_AUTO, sa, CTLFLAG_RD, 0, 622 "CAM Sequential Access Tape Driver"); 623 SYSCTL_INT(_kern_cam_sa, OID_AUTO, allow_io_split, CTLFLAG_RDTUN, 624 &sa_allow_io_split, 0, "Default I/O split value"); 625 626 static struct periph_driver sadriver = 627 { 628 sainit, "sa", 629 TAILQ_HEAD_INITIALIZER(sadriver.units), /* generation */ 0 630 }; 631 632 PERIPHDRIVER_DECLARE(sa, sadriver); 633 634 /* For 2.2-stable support */ 635 #ifndef D_TAPE 636 #define D_TAPE 0 637 #endif 638 639 640 static struct cdevsw sa_cdevsw = { 641 .d_version = D_VERSION, 642 .d_open = saopen, 643 .d_close = saclose, 644 .d_read = physread, 645 .d_write = physwrite, 646 .d_ioctl = saioctl, 647 .d_strategy = sastrategy, 648 .d_name = "sa", 649 .d_flags = D_TAPE | D_TRACKCLOSE, 650 }; 651 652 static int 653 saopen(struct cdev *dev, int flags, int fmt, struct thread *td) 654 { 655 struct cam_periph *periph; 656 struct sa_softc *softc; 657 int error; 658 659 periph = (struct cam_periph *)dev->si_drv1; 660 if (cam_periph_acquire(periph) != 0) { 661 return (ENXIO); 662 } 663 664 cam_periph_lock(periph); 665 666 softc = (struct sa_softc *)periph->softc; 667 668 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE|CAM_DEBUG_INFO, 669 ("saopen(%s): softc=0x%x\n", devtoname(dev), softc->flags)); 670 671 if (SA_IS_CTRL(dev)) { 672 softc->ctrl_mode = 1; 673 softc->open_count++; 674 cam_periph_unlock(periph); 675 return (0); 676 } 677 678 if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) { 679 cam_periph_unlock(periph); 680 cam_periph_release(periph); 681 return (error); 682 } 683 684 if (softc->flags & SA_FLAG_OPEN) { 685 error = EBUSY; 686 } else if (softc->flags & SA_FLAG_INVALID) { 687 error = ENXIO; 688 } else { 689 /* 690 * Preserve whether this is a read_only open. 691 */ 692 softc->open_rdonly = (flags & O_RDWR) == O_RDONLY; 693 694 /* 695 * The function samount ensures media is loaded and ready. 696 * It also does a device RESERVE if the tape isn't yet mounted. 697 * 698 * If the mount fails and this was a non-blocking open, 699 * make this a 'open_pending_mount' action. 700 */ 701 error = samount(periph, flags, dev); 702 if (error && (flags & O_NONBLOCK)) { 703 softc->flags |= SA_FLAG_OPEN; 704 softc->open_pending_mount = 1; 705 softc->open_count++; 706 cam_periph_unhold(periph); 707 cam_periph_unlock(periph); 708 return (0); 709 } 710 } 711 712 if (error) { 713 cam_periph_unhold(periph); 714 cam_periph_unlock(periph); 715 cam_periph_release(periph); 716 return (error); 717 } 718 719 saprevent(periph, PR_PREVENT); 720 softc->flags |= SA_FLAG_OPEN; 721 softc->open_count++; 722 723 cam_periph_unhold(periph); 724 cam_periph_unlock(periph); 725 return (error); 726 } 727 728 static int 729 saclose(struct cdev *dev, int flag, int fmt, struct thread *td) 730 { 731 struct cam_periph *periph; 732 struct sa_softc *softc; 733 int mode, error, writing, tmp, i; 734 int closedbits = SA_FLAG_OPEN; 735 736 mode = SAMODE(dev); 737 periph = (struct cam_periph *)dev->si_drv1; 738 cam_periph_lock(periph); 739 740 softc = (struct sa_softc *)periph->softc; 741 742 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE|CAM_DEBUG_INFO, 743 ("saclose(%s): softc=0x%x\n", devtoname(dev), softc->flags)); 744 745 746 softc->open_rdonly = 0; 747 if (SA_IS_CTRL(dev)) { 748 softc->ctrl_mode = 0; 749 softc->open_count--; 750 cam_periph_unlock(periph); 751 cam_periph_release(periph); 752 return (0); 753 } 754 755 if (softc->open_pending_mount) { 756 softc->flags &= ~SA_FLAG_OPEN; 757 softc->open_pending_mount = 0; 758 softc->open_count--; 759 cam_periph_unlock(periph); 760 cam_periph_release(periph); 761 return (0); 762 } 763 764 if ((error = cam_periph_hold(periph, PRIBIO)) != 0) { 765 cam_periph_unlock(periph); 766 return (error); 767 } 768 769 /* 770 * Were we writing the tape? 771 */ 772 writing = (softc->flags & SA_FLAG_TAPE_WRITTEN) != 0; 773 774 /* 775 * See whether or not we need to write filemarks. If this 776 * fails, we probably have to assume we've lost tape 777 * position. 778 */ 779 error = sacheckeod(periph); 780 if (error) { 781 xpt_print(periph->path, 782 "failed to write terminating filemark(s)\n"); 783 softc->flags |= SA_FLAG_TAPE_FROZEN; 784 } 785 786 /* 787 * Whatever we end up doing, allow users to eject tapes from here on. 788 */ 789 saprevent(periph, PR_ALLOW); 790 791 /* 792 * Decide how to end... 793 */ 794 if ((softc->flags & SA_FLAG_TAPE_MOUNTED) == 0) { 795 closedbits |= SA_FLAG_TAPE_FROZEN; 796 } else switch (mode) { 797 case SA_MODE_OFFLINE: 798 /* 799 * An 'offline' close is an unconditional release of 800 * frozen && mount conditions, irrespective of whether 801 * these operations succeeded. The reason for this is 802 * to allow at least some kind of programmatic way 803 * around our state getting all fouled up. If somebody 804 * issues an 'offline' command, that will be allowed 805 * to clear state. 806 */ 807 (void) sarewind(periph); 808 (void) saloadunload(periph, FALSE); 809 closedbits |= SA_FLAG_TAPE_MOUNTED|SA_FLAG_TAPE_FROZEN; 810 break; 811 case SA_MODE_REWIND: 812 /* 813 * If the rewind fails, return an error- if anyone cares, 814 * but not overwriting any previous error. 815 * 816 * We don't clear the notion of mounted here, but we do 817 * clear the notion of frozen if we successfully rewound. 818 */ 819 tmp = sarewind(periph); 820 if (tmp) { 821 if (error != 0) 822 error = tmp; 823 } else { 824 closedbits |= SA_FLAG_TAPE_FROZEN; 825 } 826 break; 827 case SA_MODE_NOREWIND: 828 /* 829 * If we're not rewinding/unloading the tape, find out 830 * whether we need to back up over one of two filemarks 831 * we wrote (if we wrote two filemarks) so that appends 832 * from this point on will be sane. 833 */ 834 if (error == 0 && writing && (softc->quirks & SA_QUIRK_2FM)) { 835 tmp = saspace(periph, -1, SS_FILEMARKS); 836 if (tmp) { 837 xpt_print(periph->path, "unable to backspace " 838 "over one of double filemarks at end of " 839 "tape\n"); 840 xpt_print(periph->path, "it is possible that " 841 "this device needs a SA_QUIRK_1FM quirk set" 842 "for it\n"); 843 softc->flags |= SA_FLAG_TAPE_FROZEN; 844 } 845 } 846 break; 847 default: 848 xpt_print(periph->path, "unknown mode 0x%x in saclose\n", mode); 849 /* NOTREACHED */ 850 break; 851 } 852 853 /* 854 * We wish to note here that there are no more filemarks to be written. 855 */ 856 softc->filemarks = 0; 857 softc->flags &= ~SA_FLAG_TAPE_WRITTEN; 858 859 /* 860 * And we are no longer open for business. 861 */ 862 softc->flags &= ~closedbits; 863 softc->open_count--; 864 865 /* 866 * Invalidate any density information that depends on having tape 867 * media in the drive. 868 */ 869 for (i = 0; i < SA_DENSITY_TYPES; i++) { 870 if (softc->density_type_bits[i] & SRDS_MEDIA) 871 softc->density_info_valid[i] = 0; 872 } 873 874 /* 875 * Inform users if tape state if frozen.... 876 */ 877 if (softc->flags & SA_FLAG_TAPE_FROZEN) { 878 xpt_print(periph->path, "tape is now frozen- use an OFFLINE, " 879 "REWIND or MTEOM command to clear this state.\n"); 880 } 881 882 /* release the device if it is no longer mounted */ 883 if ((softc->flags & SA_FLAG_TAPE_MOUNTED) == 0) 884 sareservereleaseunit(periph, FALSE); 885 886 cam_periph_unhold(periph); 887 cam_periph_unlock(periph); 888 cam_periph_release(periph); 889 890 return (error); 891 } 892 893 /* 894 * Actually translate the requested transfer into one the physical driver 895 * can understand. The transfer is described by a buf and will include 896 * only one physical transfer. 897 */ 898 static void 899 sastrategy(struct bio *bp) 900 { 901 struct cam_periph *periph; 902 struct sa_softc *softc; 903 904 bp->bio_resid = bp->bio_bcount; 905 if (SA_IS_CTRL(bp->bio_dev)) { 906 biofinish(bp, NULL, EINVAL); 907 return; 908 } 909 periph = (struct cam_periph *)bp->bio_dev->si_drv1; 910 cam_periph_lock(periph); 911 912 softc = (struct sa_softc *)periph->softc; 913 914 if (softc->flags & SA_FLAG_INVALID) { 915 cam_periph_unlock(periph); 916 biofinish(bp, NULL, ENXIO); 917 return; 918 } 919 920 if (softc->flags & SA_FLAG_TAPE_FROZEN) { 921 cam_periph_unlock(periph); 922 biofinish(bp, NULL, EPERM); 923 return; 924 } 925 926 /* 927 * This should actually never occur as the write(2) 928 * system call traps attempts to write to a read-only 929 * file descriptor. 930 */ 931 if (bp->bio_cmd == BIO_WRITE && softc->open_rdonly) { 932 cam_periph_unlock(periph); 933 biofinish(bp, NULL, EBADF); 934 return; 935 } 936 937 if (softc->open_pending_mount) { 938 int error = samount(periph, 0, bp->bio_dev); 939 if (error) { 940 cam_periph_unlock(periph); 941 biofinish(bp, NULL, ENXIO); 942 return; 943 } 944 saprevent(periph, PR_PREVENT); 945 softc->open_pending_mount = 0; 946 } 947 948 949 /* 950 * If it's a null transfer, return immediately 951 */ 952 if (bp->bio_bcount == 0) { 953 cam_periph_unlock(periph); 954 biodone(bp); 955 return; 956 } 957 958 /* valid request? */ 959 if (softc->flags & SA_FLAG_FIXED) { 960 /* 961 * Fixed block device. The byte count must 962 * be a multiple of our block size. 963 */ 964 if (((softc->blk_mask != ~0) && 965 ((bp->bio_bcount & softc->blk_mask) != 0)) || 966 ((softc->blk_mask == ~0) && 967 ((bp->bio_bcount % softc->min_blk) != 0))) { 968 xpt_print(periph->path, "Invalid request. Fixed block " 969 "device requests must be a multiple of %d bytes\n", 970 softc->min_blk); 971 cam_periph_unlock(periph); 972 biofinish(bp, NULL, EINVAL); 973 return; 974 } 975 } else if ((bp->bio_bcount > softc->max_blk) || 976 (bp->bio_bcount < softc->min_blk) || 977 (bp->bio_bcount & softc->blk_mask) != 0) { 978 979 xpt_print_path(periph->path); 980 printf("Invalid request. Variable block " 981 "device requests must be "); 982 if (softc->blk_mask != 0) { 983 printf("a multiple of %d ", (0x1 << softc->blk_gran)); 984 } 985 printf("between %d and %d bytes\n", softc->min_blk, 986 softc->max_blk); 987 cam_periph_unlock(periph); 988 biofinish(bp, NULL, EINVAL); 989 return; 990 } 991 992 /* 993 * Place it at the end of the queue. 994 */ 995 bioq_insert_tail(&softc->bio_queue, bp); 996 softc->queue_count++; 997 #if 0 998 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, 999 ("sastrategy: queuing a %ld %s byte %s\n", bp->bio_bcount, 1000 (softc->flags & SA_FLAG_FIXED)? "fixed" : "variable", 1001 (bp->bio_cmd == BIO_READ)? "read" : "write")); 1002 #endif 1003 if (softc->queue_count > 1) { 1004 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, 1005 ("sastrategy: queue count now %d\n", softc->queue_count)); 1006 } 1007 1008 /* 1009 * Schedule ourselves for performing the work. 1010 */ 1011 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 1012 cam_periph_unlock(periph); 1013 1014 return; 1015 } 1016 1017 static int 1018 sasetsili(struct cam_periph *periph, struct mtparamset *ps, int num_params) 1019 { 1020 uint32_t sili_blocksize; 1021 struct sa_softc *softc; 1022 int error; 1023 1024 error = 0; 1025 softc = (struct sa_softc *)periph->softc; 1026 1027 if (ps->value_type != MT_PARAM_SET_SIGNED) { 1028 snprintf(ps->error_str, sizeof(ps->error_str), 1029 "sili is a signed parameter"); 1030 goto bailout; 1031 } 1032 if ((ps->value.value_signed < 0) 1033 || (ps->value.value_signed > 1)) { 1034 snprintf(ps->error_str, sizeof(ps->error_str), 1035 "invalid sili value %jd", (intmax_t)ps->value.value_signed); 1036 goto bailout_error; 1037 } 1038 /* 1039 * We only set the SILI flag in variable block 1040 * mode. You'll get a check condition in fixed 1041 * block mode if things don't line up in any case. 1042 */ 1043 if (softc->flags & SA_FLAG_FIXED) { 1044 snprintf(ps->error_str, sizeof(ps->error_str), 1045 "can't set sili bit in fixed block mode"); 1046 goto bailout_error; 1047 } 1048 if (softc->sili == ps->value.value_signed) 1049 goto bailout; 1050 1051 if (ps->value.value_signed == 1) 1052 sili_blocksize = 4; 1053 else 1054 sili_blocksize = 0; 1055 1056 error = sasetparams(periph, SA_PARAM_BLOCKSIZE, 1057 sili_blocksize, 0, 0, SF_QUIET_IR); 1058 if (error != 0) { 1059 snprintf(ps->error_str, sizeof(ps->error_str), 1060 "sasetparams() returned error %d", error); 1061 goto bailout_error; 1062 } 1063 1064 softc->sili = ps->value.value_signed; 1065 1066 bailout: 1067 ps->status = MT_PARAM_STATUS_OK; 1068 return (error); 1069 1070 bailout_error: 1071 ps->status = MT_PARAM_STATUS_ERROR; 1072 if (error == 0) 1073 error = EINVAL; 1074 1075 return (error); 1076 } 1077 1078 static int 1079 saseteotwarn(struct cam_periph *periph, struct mtparamset *ps, int num_params) 1080 { 1081 struct sa_softc *softc; 1082 int error; 1083 1084 error = 0; 1085 softc = (struct sa_softc *)periph->softc; 1086 1087 if (ps->value_type != MT_PARAM_SET_SIGNED) { 1088 snprintf(ps->error_str, sizeof(ps->error_str), 1089 "eot_warn is a signed parameter"); 1090 ps->status = MT_PARAM_STATUS_ERROR; 1091 goto bailout; 1092 } 1093 if ((ps->value.value_signed < 0) 1094 || (ps->value.value_signed > 1)) { 1095 snprintf(ps->error_str, sizeof(ps->error_str), 1096 "invalid eot_warn value %jd\n", 1097 (intmax_t)ps->value.value_signed); 1098 ps->status = MT_PARAM_STATUS_ERROR; 1099 goto bailout; 1100 } 1101 softc->eot_warn = ps->value.value_signed; 1102 ps->status = MT_PARAM_STATUS_OK; 1103 bailout: 1104 if (ps->status != MT_PARAM_STATUS_OK) 1105 error = EINVAL; 1106 1107 return (error); 1108 } 1109 1110 1111 static void 1112 safillprot(struct sa_softc *softc, int *indent, struct sbuf *sb) 1113 { 1114 int tmpint; 1115 1116 SASBADDNODE(sb, *indent, protection); 1117 if (softc->flags & SA_FLAG_PROTECT_SUPP) 1118 tmpint = 1; 1119 else 1120 tmpint = 0; 1121 SASBADDINTDESC(sb, *indent, tmpint, %d, protection_supported, 1122 "Set to 1 if protection information is supported"); 1123 1124 if ((tmpint != 0) 1125 && (softc->prot_info.cur_prot_state.initialized != 0)) { 1126 struct sa_prot_state *prot; 1127 1128 prot = &softc->prot_info.cur_prot_state; 1129 1130 SASBADDUINTDESC(sb, *indent, prot->prot_method, %u, 1131 prot_method, "Current Protection Method"); 1132 SASBADDUINTDESC(sb, *indent, prot->pi_length, %u, 1133 pi_length, "Length of Protection Information"); 1134 SASBADDUINTDESC(sb, *indent, prot->lbp_w, %u, 1135 lbp_w, "Check Protection on Writes"); 1136 SASBADDUINTDESC(sb, *indent, prot->lbp_r, %u, 1137 lbp_r, "Check and Include Protection on Reads"); 1138 SASBADDUINTDESC(sb, *indent, prot->rbdp, %u, 1139 rbdp, "Transfer Protection Information for RECOVER " 1140 "BUFFERED DATA command"); 1141 } 1142 SASBENDNODE(sb, *indent, protection); 1143 } 1144 1145 static void 1146 sapopulateprots(struct sa_prot_state *cur_state, struct sa_prot_map *new_table, 1147 int table_ents) 1148 { 1149 int i; 1150 1151 bcopy(sa_prot_table, new_table, min(table_ents * sizeof(*new_table), 1152 sizeof(sa_prot_table))); 1153 1154 table_ents = min(table_ents, SA_NUM_PROT_ENTS); 1155 1156 for (i = 0; i < table_ents; i++) 1157 new_table[i].value = (uint32_t *)((uint8_t *)cur_state + 1158 new_table[i].offset); 1159 1160 return; 1161 } 1162 1163 static struct sa_prot_map * 1164 safindprotent(char *name, struct sa_prot_map *table, int table_ents) 1165 { 1166 char *prot_name = "protection."; 1167 int i, prot_len; 1168 1169 prot_len = strlen(prot_name); 1170 1171 /* 1172 * This shouldn't happen, but we check just in case. 1173 */ 1174 if (strncmp(name, prot_name, prot_len) != 0) 1175 goto bailout; 1176 1177 for (i = 0; i < table_ents; i++) { 1178 if (strcmp(&name[prot_len], table[i].name) != 0) 1179 continue; 1180 return (&table[i]); 1181 } 1182 bailout: 1183 return (NULL); 1184 } 1185 1186 static int 1187 sasetprotents(struct cam_periph *periph, struct mtparamset *ps, int num_params) 1188 { 1189 struct sa_softc *softc; 1190 struct sa_prot_map prot_ents[SA_NUM_PROT_ENTS]; 1191 struct sa_prot_state new_state; 1192 int error; 1193 int i; 1194 1195 softc = (struct sa_softc *)periph->softc; 1196 error = 0; 1197 1198 /* 1199 * Make sure that this tape drive supports protection information. 1200 * Otherwise we can't set anything. 1201 */ 1202 if ((softc->flags & SA_FLAG_PROTECT_SUPP) == 0) { 1203 snprintf(ps[0].error_str, sizeof(ps[0].error_str), 1204 "Protection information is not supported for this device"); 1205 ps[0].status = MT_PARAM_STATUS_ERROR; 1206 goto bailout; 1207 } 1208 1209 /* 1210 * We can't operate with physio(9) splitting enabled, because there 1211 * is no way to insure (especially in variable block mode) that 1212 * what the user writes (with a checksum block at the end) will 1213 * make it into the sa(4) driver intact. 1214 */ 1215 if ((softc->si_flags & SI_NOSPLIT) == 0) { 1216 snprintf(ps[0].error_str, sizeof(ps[0].error_str), 1217 "Protection information cannot be enabled with I/O " 1218 "splitting"); 1219 ps[0].status = MT_PARAM_STATUS_ERROR; 1220 goto bailout; 1221 } 1222 1223 /* 1224 * Take the current cached protection state and use that as the 1225 * basis for our new entries. 1226 */ 1227 bcopy(&softc->prot_info.cur_prot_state, &new_state, sizeof(new_state)); 1228 1229 /* 1230 * Populate the table mapping property names to pointers into the 1231 * state structure. 1232 */ 1233 sapopulateprots(&new_state, prot_ents, SA_NUM_PROT_ENTS); 1234 1235 /* 1236 * For each parameter the user passed in, make sure the name, type 1237 * and value are valid. 1238 */ 1239 for (i = 0; i < num_params; i++) { 1240 struct sa_prot_map *ent; 1241 1242 ent = safindprotent(ps[i].value_name, prot_ents, 1243 SA_NUM_PROT_ENTS); 1244 if (ent == NULL) { 1245 ps[i].status = MT_PARAM_STATUS_ERROR; 1246 snprintf(ps[i].error_str, sizeof(ps[i].error_str), 1247 "Invalid protection entry name %s", 1248 ps[i].value_name); 1249 error = EINVAL; 1250 goto bailout; 1251 } 1252 if (ent->param_type != ps[i].value_type) { 1253 ps[i].status = MT_PARAM_STATUS_ERROR; 1254 snprintf(ps[i].error_str, sizeof(ps[i].error_str), 1255 "Supplied type %d does not match actual type %d", 1256 ps[i].value_type, ent->param_type); 1257 error = EINVAL; 1258 goto bailout; 1259 } 1260 if ((ps[i].value.value_unsigned < ent->min_val) 1261 || (ps[i].value.value_unsigned > ent->max_val)) { 1262 ps[i].status = MT_PARAM_STATUS_ERROR; 1263 snprintf(ps[i].error_str, sizeof(ps[i].error_str), 1264 "Value %ju is outside valid range %u - %u", 1265 (uintmax_t)ps[i].value.value_unsigned, ent->min_val, 1266 ent->max_val); 1267 error = EINVAL; 1268 goto bailout; 1269 } 1270 *(ent->value) = ps[i].value.value_unsigned; 1271 } 1272 1273 /* 1274 * Actually send the protection settings to the drive. 1275 */ 1276 error = sasetprot(periph, &new_state); 1277 if (error != 0) { 1278 for (i = 0; i < num_params; i++) { 1279 ps[i].status = MT_PARAM_STATUS_ERROR; 1280 snprintf(ps[i].error_str, sizeof(ps[i].error_str), 1281 "Unable to set parameter, see dmesg(8)"); 1282 } 1283 goto bailout; 1284 } 1285 1286 /* 1287 * Let the user know that his settings were stored successfully. 1288 */ 1289 for (i = 0; i < num_params; i++) 1290 ps[i].status = MT_PARAM_STATUS_OK; 1291 1292 bailout: 1293 return (error); 1294 } 1295 /* 1296 * Entry handlers generally only handle a single entry. Node handlers will 1297 * handle a contiguous range of parameters to set in a single call. 1298 */ 1299 typedef enum { 1300 SA_PARAM_TYPE_ENTRY, 1301 SA_PARAM_TYPE_NODE 1302 } sa_param_type; 1303 1304 struct sa_param_ent { 1305 char *name; 1306 sa_param_type param_type; 1307 int (*set_func)(struct cam_periph *periph, struct mtparamset *ps, 1308 int num_params); 1309 } sa_param_table[] = { 1310 {"sili", SA_PARAM_TYPE_ENTRY, sasetsili }, 1311 {"eot_warn", SA_PARAM_TYPE_ENTRY, saseteotwarn }, 1312 {"protection.", SA_PARAM_TYPE_NODE, sasetprotents } 1313 }; 1314 1315 static struct sa_param_ent * 1316 safindparament(struct mtparamset *ps) 1317 { 1318 unsigned int i; 1319 1320 for (i = 0; i < nitems(sa_param_table); i++){ 1321 /* 1322 * For entries, we compare all of the characters. For 1323 * nodes, we only compare the first N characters. The node 1324 * handler will decode the rest. 1325 */ 1326 if (sa_param_table[i].param_type == SA_PARAM_TYPE_ENTRY) { 1327 if (strcmp(ps->value_name, sa_param_table[i].name) != 0) 1328 continue; 1329 } else { 1330 if (strncmp(ps->value_name, sa_param_table[i].name, 1331 strlen(sa_param_table[i].name)) != 0) 1332 continue; 1333 } 1334 return (&sa_param_table[i]); 1335 } 1336 1337 return (NULL); 1338 } 1339 1340 /* 1341 * Go through a list of parameters, coalescing contiguous parameters with 1342 * the same parent node into a single call to a set_func. 1343 */ 1344 static int 1345 saparamsetlist(struct cam_periph *periph, struct mtsetlist *list, 1346 int need_copy) 1347 { 1348 int i, contig_ents; 1349 int error; 1350 struct mtparamset *params, *first; 1351 struct sa_param_ent *first_ent; 1352 1353 error = 0; 1354 params = NULL; 1355 1356 if (list->num_params == 0) 1357 /* Nothing to do */ 1358 goto bailout; 1359 1360 /* 1361 * Verify that the user has the correct structure size. 1362 */ 1363 if ((list->num_params * sizeof(struct mtparamset)) != 1364 list->param_len) { 1365 xpt_print(periph->path, "%s: length of params %d != " 1366 "sizeof(struct mtparamset) %zd * num_params %d\n", 1367 __func__, list->param_len, sizeof(struct mtparamset), 1368 list->num_params); 1369 error = EINVAL; 1370 goto bailout; 1371 } 1372 1373 if (need_copy != 0) { 1374 /* 1375 * XXX KDM will dropping the lock cause an issue here? 1376 */ 1377 cam_periph_unlock(periph); 1378 params = malloc(list->param_len, M_SCSISA, M_WAITOK | M_ZERO); 1379 error = copyin(list->params, params, list->param_len); 1380 cam_periph_lock(periph); 1381 1382 if (error != 0) 1383 goto bailout; 1384 } else { 1385 params = list->params; 1386 } 1387 1388 contig_ents = 0; 1389 first = NULL; 1390 first_ent = NULL; 1391 for (i = 0; i < list->num_params; i++) { 1392 struct sa_param_ent *ent; 1393 1394 ent = safindparament(¶ms[i]); 1395 if (ent == NULL) { 1396 snprintf(params[i].error_str, 1397 sizeof(params[i].error_str), 1398 "%s: cannot find parameter %s", __func__, 1399 params[i].value_name); 1400 params[i].status = MT_PARAM_STATUS_ERROR; 1401 break; 1402 } 1403 1404 if (first != NULL) { 1405 if (first_ent == ent) { 1406 /* 1407 * We're still in a contiguous list of 1408 * parameters that can be handled by one 1409 * node handler. 1410 */ 1411 contig_ents++; 1412 continue; 1413 } else { 1414 error = first_ent->set_func(periph, first, 1415 contig_ents); 1416 first = NULL; 1417 first_ent = NULL; 1418 contig_ents = 0; 1419 if (error != 0) { 1420 error = 0; 1421 break; 1422 } 1423 } 1424 } 1425 if (ent->param_type == SA_PARAM_TYPE_NODE) { 1426 first = ¶ms[i]; 1427 first_ent = ent; 1428 contig_ents = 1; 1429 } else { 1430 error = ent->set_func(periph, ¶ms[i], 1); 1431 if (error != 0) { 1432 error = 0; 1433 break; 1434 } 1435 } 1436 } 1437 if (first != NULL) 1438 first_ent->set_func(periph, first, contig_ents); 1439 1440 bailout: 1441 if (need_copy != 0) { 1442 if (error != EFAULT) { 1443 cam_periph_unlock(periph); 1444 copyout(params, list->params, list->param_len); 1445 cam_periph_lock(periph); 1446 } 1447 free(params, M_SCSISA); 1448 } 1449 return (error); 1450 } 1451 1452 static int 1453 sagetparams_common(struct cdev *dev, struct cam_periph *periph) 1454 { 1455 struct sa_softc *softc; 1456 u_int8_t write_protect; 1457 int comp_enabled, comp_supported, error; 1458 1459 softc = (struct sa_softc *)periph->softc; 1460 1461 if (softc->open_pending_mount) 1462 return (0); 1463 1464 /* The control device may issue getparams() if there are no opens. */ 1465 if (SA_IS_CTRL(dev) && (softc->flags & SA_FLAG_OPEN) != 0) 1466 return (0); 1467 1468 error = sagetparams(periph, SA_PARAM_ALL, &softc->media_blksize, 1469 &softc->media_density, &softc->media_numblks, &softc->buffer_mode, 1470 &write_protect, &softc->speed, &comp_supported, &comp_enabled, 1471 &softc->comp_algorithm, NULL, NULL, 0, 0); 1472 if (error) 1473 return (error); 1474 if (write_protect) 1475 softc->flags |= SA_FLAG_TAPE_WP; 1476 else 1477 softc->flags &= ~SA_FLAG_TAPE_WP; 1478 softc->flags &= ~SA_FLAG_COMPRESSION; 1479 if (comp_supported) { 1480 if (softc->saved_comp_algorithm == 0) 1481 softc->saved_comp_algorithm = 1482 softc->comp_algorithm; 1483 softc->flags |= SA_FLAG_COMP_SUPP; 1484 if (comp_enabled) 1485 softc->flags |= SA_FLAG_COMP_ENABLED; 1486 } else 1487 softc->flags |= SA_FLAG_COMP_UNSUPP; 1488 1489 return (0); 1490 } 1491 1492 #define PENDING_MOUNT_CHECK(softc, periph, dev) \ 1493 if (softc->open_pending_mount) { \ 1494 error = samount(periph, 0, dev); \ 1495 if (error) { \ 1496 break; \ 1497 } \ 1498 saprevent(periph, PR_PREVENT); \ 1499 softc->open_pending_mount = 0; \ 1500 } 1501 1502 static int 1503 saioctl(struct cdev *dev, u_long cmd, caddr_t arg, int flag, struct thread *td) 1504 { 1505 struct cam_periph *periph; 1506 struct sa_softc *softc; 1507 scsi_space_code spaceop; 1508 int didlockperiph = 0; 1509 int mode; 1510 int error = 0; 1511 1512 mode = SAMODE(dev); 1513 error = 0; /* shut up gcc */ 1514 spaceop = 0; /* shut up gcc */ 1515 1516 periph = (struct cam_periph *)dev->si_drv1; 1517 cam_periph_lock(periph); 1518 softc = (struct sa_softc *)periph->softc; 1519 1520 /* 1521 * Check for control mode accesses. We allow MTIOCGET and 1522 * MTIOCERRSTAT (but need to be the only one open in order 1523 * to clear latched status), and MTSETBSIZE, MTSETDNSTY 1524 * and MTCOMP (but need to be the only one accessing this 1525 * device to run those). 1526 */ 1527 1528 if (SA_IS_CTRL(dev)) { 1529 switch (cmd) { 1530 case MTIOCGETEOTMODEL: 1531 case MTIOCGET: 1532 case MTIOCEXTGET: 1533 case MTIOCPARAMGET: 1534 case MTIOCRBLIM: 1535 break; 1536 case MTIOCERRSTAT: 1537 /* 1538 * If the periph isn't already locked, lock it 1539 * so our MTIOCERRSTAT can reset latched error stats. 1540 * 1541 * If the periph is already locked, skip it because 1542 * we're just getting status and it'll be up to the 1543 * other thread that has this device open to do 1544 * an MTIOCERRSTAT that would clear latched status. 1545 */ 1546 if ((periph->flags & CAM_PERIPH_LOCKED) == 0) { 1547 error = cam_periph_hold(periph, PRIBIO|PCATCH); 1548 if (error != 0) { 1549 cam_periph_unlock(periph); 1550 return (error); 1551 } 1552 didlockperiph = 1; 1553 } 1554 break; 1555 1556 case MTIOCTOP: 1557 { 1558 struct mtop *mt = (struct mtop *) arg; 1559 1560 /* 1561 * Check to make sure it's an OP we can perform 1562 * with no media inserted. 1563 */ 1564 switch (mt->mt_op) { 1565 case MTSETBSIZ: 1566 case MTSETDNSTY: 1567 case MTCOMP: 1568 mt = NULL; 1569 /* FALLTHROUGH */ 1570 default: 1571 break; 1572 } 1573 if (mt != NULL) { 1574 break; 1575 } 1576 /* FALLTHROUGH */ 1577 } 1578 case MTIOCSETEOTMODEL: 1579 /* 1580 * We need to acquire the peripheral here rather 1581 * than at open time because we are sharing writable 1582 * access to data structures. 1583 */ 1584 error = cam_periph_hold(periph, PRIBIO|PCATCH); 1585 if (error != 0) { 1586 cam_periph_unlock(periph); 1587 return (error); 1588 } 1589 didlockperiph = 1; 1590 break; 1591 1592 default: 1593 cam_periph_unlock(periph); 1594 return (EINVAL); 1595 } 1596 } 1597 1598 /* 1599 * Find the device that the user is talking about 1600 */ 1601 switch (cmd) { 1602 case MTIOCGET: 1603 { 1604 struct mtget *g = (struct mtget *)arg; 1605 1606 error = sagetparams_common(dev, periph); 1607 if (error) 1608 break; 1609 bzero(g, sizeof(struct mtget)); 1610 g->mt_type = MT_ISAR; 1611 if (softc->flags & SA_FLAG_COMP_UNSUPP) { 1612 g->mt_comp = MT_COMP_UNSUPP; 1613 g->mt_comp0 = MT_COMP_UNSUPP; 1614 g->mt_comp1 = MT_COMP_UNSUPP; 1615 g->mt_comp2 = MT_COMP_UNSUPP; 1616 g->mt_comp3 = MT_COMP_UNSUPP; 1617 } else { 1618 if ((softc->flags & SA_FLAG_COMP_ENABLED) == 0) { 1619 g->mt_comp = MT_COMP_DISABLED; 1620 } else { 1621 g->mt_comp = softc->comp_algorithm; 1622 } 1623 g->mt_comp0 = softc->comp_algorithm; 1624 g->mt_comp1 = softc->comp_algorithm; 1625 g->mt_comp2 = softc->comp_algorithm; 1626 g->mt_comp3 = softc->comp_algorithm; 1627 } 1628 g->mt_density = softc->media_density; 1629 g->mt_density0 = softc->media_density; 1630 g->mt_density1 = softc->media_density; 1631 g->mt_density2 = softc->media_density; 1632 g->mt_density3 = softc->media_density; 1633 g->mt_blksiz = softc->media_blksize; 1634 g->mt_blksiz0 = softc->media_blksize; 1635 g->mt_blksiz1 = softc->media_blksize; 1636 g->mt_blksiz2 = softc->media_blksize; 1637 g->mt_blksiz3 = softc->media_blksize; 1638 g->mt_fileno = softc->fileno; 1639 g->mt_blkno = softc->blkno; 1640 g->mt_dsreg = (short) softc->dsreg; 1641 /* 1642 * Yes, we know that this is likely to overflow 1643 */ 1644 if (softc->last_resid_was_io) { 1645 if ((g->mt_resid = (short) softc->last_io_resid) != 0) { 1646 if (SA_IS_CTRL(dev) == 0 || didlockperiph) { 1647 softc->last_io_resid = 0; 1648 } 1649 } 1650 } else { 1651 if ((g->mt_resid = (short)softc->last_ctl_resid) != 0) { 1652 if (SA_IS_CTRL(dev) == 0 || didlockperiph) { 1653 softc->last_ctl_resid = 0; 1654 } 1655 } 1656 } 1657 error = 0; 1658 break; 1659 } 1660 case MTIOCEXTGET: 1661 case MTIOCPARAMGET: 1662 { 1663 struct mtextget *g = (struct mtextget *)arg; 1664 char *tmpstr2; 1665 struct sbuf *sb; 1666 1667 /* 1668 * Report drive status using an XML format. 1669 */ 1670 1671 /* 1672 * XXX KDM will dropping the lock cause any problems here? 1673 */ 1674 cam_periph_unlock(periph); 1675 sb = sbuf_new(NULL, NULL, g->alloc_len, SBUF_FIXEDLEN); 1676 if (sb == NULL) { 1677 g->status = MT_EXT_GET_ERROR; 1678 snprintf(g->error_str, sizeof(g->error_str), 1679 "Unable to allocate %d bytes for status info", 1680 g->alloc_len); 1681 cam_periph_lock(periph); 1682 goto extget_bailout; 1683 } 1684 cam_periph_lock(periph); 1685 1686 if (cmd == MTIOCEXTGET) 1687 error = saextget(dev, periph, sb, g); 1688 else 1689 error = saparamget(softc, sb); 1690 1691 if (error != 0) 1692 goto extget_bailout; 1693 1694 error = sbuf_finish(sb); 1695 if (error == ENOMEM) { 1696 g->status = MT_EXT_GET_NEED_MORE_SPACE; 1697 error = 0; 1698 } else if (error != 0) { 1699 g->status = MT_EXT_GET_ERROR; 1700 snprintf(g->error_str, sizeof(g->error_str), 1701 "Error %d returned from sbuf_finish()", error); 1702 } else 1703 g->status = MT_EXT_GET_OK; 1704 1705 error = 0; 1706 tmpstr2 = sbuf_data(sb); 1707 g->fill_len = strlen(tmpstr2) + 1; 1708 cam_periph_unlock(periph); 1709 1710 error = copyout(tmpstr2, g->status_xml, g->fill_len); 1711 1712 cam_periph_lock(periph); 1713 1714 extget_bailout: 1715 sbuf_delete(sb); 1716 break; 1717 } 1718 case MTIOCPARAMSET: 1719 { 1720 struct mtsetlist list; 1721 struct mtparamset *ps = (struct mtparamset *)arg; 1722 1723 bzero(&list, sizeof(list)); 1724 list.num_params = 1; 1725 list.param_len = sizeof(*ps); 1726 list.params = ps; 1727 1728 error = saparamsetlist(periph, &list, /*need_copy*/ 0); 1729 break; 1730 } 1731 case MTIOCSETLIST: 1732 { 1733 struct mtsetlist *list = (struct mtsetlist *)arg; 1734 1735 error = saparamsetlist(periph, list, /*need_copy*/ 1); 1736 break; 1737 } 1738 case MTIOCERRSTAT: 1739 { 1740 struct scsi_tape_errors *sep = 1741 &((union mterrstat *)arg)->scsi_errstat; 1742 1743 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1744 ("saioctl: MTIOCERRSTAT\n")); 1745 1746 bzero(sep, sizeof(*sep)); 1747 sep->io_resid = softc->last_io_resid; 1748 bcopy((caddr_t) &softc->last_io_sense, sep->io_sense, 1749 sizeof (sep->io_sense)); 1750 bcopy((caddr_t) &softc->last_io_cdb, sep->io_cdb, 1751 sizeof (sep->io_cdb)); 1752 sep->ctl_resid = softc->last_ctl_resid; 1753 bcopy((caddr_t) &softc->last_ctl_sense, sep->ctl_sense, 1754 sizeof (sep->ctl_sense)); 1755 bcopy((caddr_t) &softc->last_ctl_cdb, sep->ctl_cdb, 1756 sizeof (sep->ctl_cdb)); 1757 1758 if ((SA_IS_CTRL(dev) == 0 && !softc->open_pending_mount) || 1759 didlockperiph) 1760 bzero((caddr_t) &softc->errinfo, 1761 sizeof (softc->errinfo)); 1762 error = 0; 1763 break; 1764 } 1765 case MTIOCTOP: 1766 { 1767 struct mtop *mt; 1768 int count; 1769 1770 PENDING_MOUNT_CHECK(softc, periph, dev); 1771 1772 mt = (struct mtop *)arg; 1773 1774 1775 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1776 ("saioctl: op=0x%x count=0x%x\n", 1777 mt->mt_op, mt->mt_count)); 1778 1779 count = mt->mt_count; 1780 switch (mt->mt_op) { 1781 case MTWEOF: /* write an end-of-file marker */ 1782 /* 1783 * We don't need to clear the SA_FLAG_TAPE_WRITTEN 1784 * flag because by keeping track of filemarks 1785 * we have last written we know whether or not 1786 * we need to write more when we close the device. 1787 */ 1788 error = sawritefilemarks(periph, count, FALSE, FALSE); 1789 break; 1790 case MTWEOFI: 1791 /* write an end-of-file marker without waiting */ 1792 error = sawritefilemarks(periph, count, FALSE, TRUE); 1793 break; 1794 case MTWSS: /* write a setmark */ 1795 error = sawritefilemarks(periph, count, TRUE, FALSE); 1796 break; 1797 case MTBSR: /* backward space record */ 1798 case MTFSR: /* forward space record */ 1799 case MTBSF: /* backward space file */ 1800 case MTFSF: /* forward space file */ 1801 case MTBSS: /* backward space setmark */ 1802 case MTFSS: /* forward space setmark */ 1803 case MTEOD: /* space to end of recorded medium */ 1804 { 1805 int nmarks; 1806 1807 spaceop = SS_FILEMARKS; 1808 nmarks = softc->filemarks; 1809 error = sacheckeod(periph); 1810 if (error) { 1811 xpt_print(periph->path, 1812 "EOD check prior to spacing failed\n"); 1813 softc->flags |= SA_FLAG_EIO_PENDING; 1814 break; 1815 } 1816 nmarks -= softc->filemarks; 1817 switch(mt->mt_op) { 1818 case MTBSR: 1819 count = -count; 1820 /* FALLTHROUGH */ 1821 case MTFSR: 1822 spaceop = SS_BLOCKS; 1823 break; 1824 case MTBSF: 1825 count = -count; 1826 /* FALLTHROUGH */ 1827 case MTFSF: 1828 break; 1829 case MTBSS: 1830 count = -count; 1831 /* FALLTHROUGH */ 1832 case MTFSS: 1833 spaceop = SS_SETMARKS; 1834 break; 1835 case MTEOD: 1836 spaceop = SS_EOD; 1837 count = 0; 1838 nmarks = 0; 1839 break; 1840 default: 1841 error = EINVAL; 1842 break; 1843 } 1844 if (error) 1845 break; 1846 1847 nmarks = softc->filemarks; 1848 /* 1849 * XXX: Why are we checking again? 1850 */ 1851 error = sacheckeod(periph); 1852 if (error) 1853 break; 1854 nmarks -= softc->filemarks; 1855 error = saspace(periph, count - nmarks, spaceop); 1856 /* 1857 * At this point, clear that we've written the tape 1858 * and that we've written any filemarks. We really 1859 * don't know what the applications wishes to do next- 1860 * the sacheckeod's will make sure we terminated the 1861 * tape correctly if we'd been writing, but the next 1862 * action the user application takes will set again 1863 * whether we need to write filemarks. 1864 */ 1865 softc->flags &= 1866 ~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN); 1867 softc->filemarks = 0; 1868 break; 1869 } 1870 case MTREW: /* rewind */ 1871 PENDING_MOUNT_CHECK(softc, periph, dev); 1872 (void) sacheckeod(periph); 1873 error = sarewind(periph); 1874 /* see above */ 1875 softc->flags &= 1876 ~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN); 1877 softc->flags &= ~SA_FLAG_ERR_PENDING; 1878 softc->filemarks = 0; 1879 break; 1880 case MTERASE: /* erase */ 1881 PENDING_MOUNT_CHECK(softc, periph, dev); 1882 error = saerase(periph, count); 1883 softc->flags &= 1884 ~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN); 1885 softc->flags &= ~SA_FLAG_ERR_PENDING; 1886 break; 1887 case MTRETENS: /* re-tension tape */ 1888 PENDING_MOUNT_CHECK(softc, periph, dev); 1889 error = saretension(periph); 1890 softc->flags &= 1891 ~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN); 1892 softc->flags &= ~SA_FLAG_ERR_PENDING; 1893 break; 1894 case MTOFFL: /* rewind and put the drive offline */ 1895 1896 PENDING_MOUNT_CHECK(softc, periph, dev); 1897 1898 (void) sacheckeod(periph); 1899 /* see above */ 1900 softc->flags &= ~SA_FLAG_TAPE_WRITTEN; 1901 softc->filemarks = 0; 1902 1903 error = sarewind(periph); 1904 /* clear the frozen flag anyway */ 1905 softc->flags &= ~SA_FLAG_TAPE_FROZEN; 1906 1907 /* 1908 * Be sure to allow media removal before ejecting. 1909 */ 1910 1911 saprevent(periph, PR_ALLOW); 1912 if (error == 0) { 1913 error = saloadunload(periph, FALSE); 1914 if (error == 0) { 1915 softc->flags &= ~SA_FLAG_TAPE_MOUNTED; 1916 } 1917 } 1918 break; 1919 1920 case MTLOAD: 1921 error = saloadunload(periph, TRUE); 1922 break; 1923 case MTNOP: /* no operation, sets status only */ 1924 case MTCACHE: /* enable controller cache */ 1925 case MTNOCACHE: /* disable controller cache */ 1926 error = 0; 1927 break; 1928 1929 case MTSETBSIZ: /* Set block size for device */ 1930 1931 PENDING_MOUNT_CHECK(softc, periph, dev); 1932 1933 if ((softc->sili != 0) 1934 && (count != 0)) { 1935 xpt_print(periph->path, "Can't enter fixed " 1936 "block mode with SILI enabled\n"); 1937 error = EINVAL; 1938 break; 1939 } 1940 error = sasetparams(periph, SA_PARAM_BLOCKSIZE, count, 1941 0, 0, 0); 1942 if (error == 0) { 1943 softc->last_media_blksize = 1944 softc->media_blksize; 1945 softc->media_blksize = count; 1946 if (count) { 1947 softc->flags |= SA_FLAG_FIXED; 1948 if (powerof2(count)) { 1949 softc->blk_shift = 1950 ffs(count) - 1; 1951 softc->blk_mask = count - 1; 1952 } else { 1953 softc->blk_mask = ~0; 1954 softc->blk_shift = 0; 1955 } 1956 /* 1957 * Make the user's desire 'persistent'. 1958 */ 1959 softc->quirks &= ~SA_QUIRK_VARIABLE; 1960 softc->quirks |= SA_QUIRK_FIXED; 1961 } else { 1962 softc->flags &= ~SA_FLAG_FIXED; 1963 if (softc->max_blk == 0) { 1964 softc->max_blk = ~0; 1965 } 1966 softc->blk_shift = 0; 1967 if (softc->blk_gran != 0) { 1968 softc->blk_mask = 1969 softc->blk_gran - 1; 1970 } else { 1971 softc->blk_mask = 0; 1972 } 1973 /* 1974 * Make the user's desire 'persistent'. 1975 */ 1976 softc->quirks |= SA_QUIRK_VARIABLE; 1977 softc->quirks &= ~SA_QUIRK_FIXED; 1978 } 1979 } 1980 break; 1981 case MTSETDNSTY: /* Set density for device and mode */ 1982 PENDING_MOUNT_CHECK(softc, periph, dev); 1983 1984 if (count > UCHAR_MAX) { 1985 error = EINVAL; 1986 break; 1987 } else { 1988 error = sasetparams(periph, SA_PARAM_DENSITY, 1989 0, count, 0, 0); 1990 } 1991 break; 1992 case MTCOMP: /* enable compression */ 1993 PENDING_MOUNT_CHECK(softc, periph, dev); 1994 /* 1995 * Some devices don't support compression, and 1996 * don't like it if you ask them for the 1997 * compression page. 1998 */ 1999 if ((softc->quirks & SA_QUIRK_NOCOMP) || 2000 (softc->flags & SA_FLAG_COMP_UNSUPP)) { 2001 error = ENODEV; 2002 break; 2003 } 2004 error = sasetparams(periph, SA_PARAM_COMPRESSION, 2005 0, 0, count, SF_NO_PRINT); 2006 break; 2007 default: 2008 error = EINVAL; 2009 } 2010 break; 2011 } 2012 case MTIOCIEOT: 2013 case MTIOCEEOT: 2014 error = 0; 2015 break; 2016 case MTIOCRDSPOS: 2017 PENDING_MOUNT_CHECK(softc, periph, dev); 2018 error = sardpos(periph, 0, (u_int32_t *) arg); 2019 break; 2020 case MTIOCRDHPOS: 2021 PENDING_MOUNT_CHECK(softc, periph, dev); 2022 error = sardpos(periph, 1, (u_int32_t *) arg); 2023 break; 2024 case MTIOCSLOCATE: 2025 case MTIOCHLOCATE: { 2026 struct mtlocate locate_info; 2027 int hard; 2028 2029 bzero(&locate_info, sizeof(locate_info)); 2030 locate_info.logical_id = *((uint32_t *)arg); 2031 if (cmd == MTIOCSLOCATE) 2032 hard = 0; 2033 else 2034 hard = 1; 2035 2036 PENDING_MOUNT_CHECK(softc, periph, dev); 2037 2038 error = sasetpos(periph, hard, &locate_info); 2039 break; 2040 } 2041 case MTIOCEXTLOCATE: 2042 PENDING_MOUNT_CHECK(softc, periph, dev); 2043 error = sasetpos(periph, /*hard*/ 0, (struct mtlocate *)arg); 2044 softc->flags &= 2045 ~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN); 2046 softc->flags &= ~SA_FLAG_ERR_PENDING; 2047 softc->filemarks = 0; 2048 break; 2049 case MTIOCGETEOTMODEL: 2050 error = 0; 2051 if (softc->quirks & SA_QUIRK_1FM) 2052 mode = 1; 2053 else 2054 mode = 2; 2055 *((u_int32_t *) arg) = mode; 2056 break; 2057 case MTIOCSETEOTMODEL: 2058 error = 0; 2059 switch (*((u_int32_t *) arg)) { 2060 case 1: 2061 softc->quirks &= ~SA_QUIRK_2FM; 2062 softc->quirks |= SA_QUIRK_1FM; 2063 break; 2064 case 2: 2065 softc->quirks &= ~SA_QUIRK_1FM; 2066 softc->quirks |= SA_QUIRK_2FM; 2067 break; 2068 default: 2069 error = EINVAL; 2070 break; 2071 } 2072 break; 2073 case MTIOCRBLIM: { 2074 struct mtrblim *rblim; 2075 2076 rblim = (struct mtrblim *)arg; 2077 2078 rblim->granularity = softc->blk_gran; 2079 rblim->min_block_length = softc->min_blk; 2080 rblim->max_block_length = softc->max_blk; 2081 break; 2082 } 2083 default: 2084 error = cam_periph_ioctl(periph, cmd, arg, saerror); 2085 break; 2086 } 2087 2088 /* 2089 * Check to see if we cleared a frozen state 2090 */ 2091 if (error == 0 && (softc->flags & SA_FLAG_TAPE_FROZEN)) { 2092 switch(cmd) { 2093 case MTIOCRDSPOS: 2094 case MTIOCRDHPOS: 2095 case MTIOCSLOCATE: 2096 case MTIOCHLOCATE: 2097 /* 2098 * XXX KDM look at this. 2099 */ 2100 softc->fileno = (daddr_t) -1; 2101 softc->blkno = (daddr_t) -1; 2102 softc->rep_blkno = (daddr_t) -1; 2103 softc->rep_fileno = (daddr_t) -1; 2104 softc->partition = (daddr_t) -1; 2105 softc->flags &= ~SA_FLAG_TAPE_FROZEN; 2106 xpt_print(periph->path, 2107 "tape state now unfrozen.\n"); 2108 break; 2109 default: 2110 break; 2111 } 2112 } 2113 if (didlockperiph) { 2114 cam_periph_unhold(periph); 2115 } 2116 cam_periph_unlock(periph); 2117 return (error); 2118 } 2119 2120 static void 2121 sainit(void) 2122 { 2123 cam_status status; 2124 2125 /* 2126 * Install a global async callback. 2127 */ 2128 status = xpt_register_async(AC_FOUND_DEVICE, saasync, NULL, NULL); 2129 2130 if (status != CAM_REQ_CMP) { 2131 printf("sa: Failed to attach master async callback " 2132 "due to status 0x%x!\n", status); 2133 } 2134 } 2135 2136 static void 2137 sadevgonecb(void *arg) 2138 { 2139 struct cam_periph *periph; 2140 struct mtx *mtx; 2141 struct sa_softc *softc; 2142 2143 periph = (struct cam_periph *)arg; 2144 softc = (struct sa_softc *)periph->softc; 2145 2146 mtx = cam_periph_mtx(periph); 2147 mtx_lock(mtx); 2148 2149 softc->num_devs_to_destroy--; 2150 if (softc->num_devs_to_destroy == 0) { 2151 int i; 2152 2153 /* 2154 * When we have gotten all of our callbacks, we will get 2155 * no more close calls from devfs. So if we have any 2156 * dangling opens, we need to release the reference held 2157 * for that particular context. 2158 */ 2159 for (i = 0; i < softc->open_count; i++) 2160 cam_periph_release_locked(periph); 2161 2162 softc->open_count = 0; 2163 2164 /* 2165 * Release the reference held for devfs, all of our 2166 * instances are gone now. 2167 */ 2168 cam_periph_release_locked(periph); 2169 } 2170 2171 /* 2172 * We reference the lock directly here, instead of using 2173 * cam_periph_unlock(). The reason is that the final call to 2174 * cam_periph_release_locked() above could result in the periph 2175 * getting freed. If that is the case, dereferencing the periph 2176 * with a cam_periph_unlock() call would cause a page fault. 2177 */ 2178 mtx_unlock(mtx); 2179 } 2180 2181 static void 2182 saoninvalidate(struct cam_periph *periph) 2183 { 2184 struct sa_softc *softc; 2185 2186 softc = (struct sa_softc *)periph->softc; 2187 2188 /* 2189 * De-register any async callbacks. 2190 */ 2191 xpt_register_async(0, saasync, periph, periph->path); 2192 2193 softc->flags |= SA_FLAG_INVALID; 2194 2195 /* 2196 * Return all queued I/O with ENXIO. 2197 * XXX Handle any transactions queued to the card 2198 * with XPT_ABORT_CCB. 2199 */ 2200 bioq_flush(&softc->bio_queue, NULL, ENXIO); 2201 softc->queue_count = 0; 2202 2203 /* 2204 * Tell devfs that all of our devices have gone away, and ask for a 2205 * callback when it has cleaned up its state. 2206 */ 2207 destroy_dev_sched_cb(softc->devs.ctl_dev, sadevgonecb, periph); 2208 destroy_dev_sched_cb(softc->devs.r_dev, sadevgonecb, periph); 2209 destroy_dev_sched_cb(softc->devs.nr_dev, sadevgonecb, periph); 2210 destroy_dev_sched_cb(softc->devs.er_dev, sadevgonecb, periph); 2211 } 2212 2213 static void 2214 sacleanup(struct cam_periph *periph) 2215 { 2216 struct sa_softc *softc; 2217 2218 softc = (struct sa_softc *)periph->softc; 2219 2220 cam_periph_unlock(periph); 2221 2222 if ((softc->flags & SA_FLAG_SCTX_INIT) != 0 2223 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) 2224 xpt_print(periph->path, "can't remove sysctl context\n"); 2225 2226 cam_periph_lock(periph); 2227 2228 devstat_remove_entry(softc->device_stats); 2229 2230 free(softc, M_SCSISA); 2231 } 2232 2233 static void 2234 saasync(void *callback_arg, u_int32_t code, 2235 struct cam_path *path, void *arg) 2236 { 2237 struct cam_periph *periph; 2238 2239 periph = (struct cam_periph *)callback_arg; 2240 switch (code) { 2241 case AC_FOUND_DEVICE: 2242 { 2243 struct ccb_getdev *cgd; 2244 cam_status status; 2245 2246 cgd = (struct ccb_getdev *)arg; 2247 if (cgd == NULL) 2248 break; 2249 2250 if (cgd->protocol != PROTO_SCSI) 2251 break; 2252 if (SID_QUAL(&cgd->inq_data) != SID_QUAL_LU_CONNECTED) 2253 break; 2254 if (SID_TYPE(&cgd->inq_data) != T_SEQUENTIAL) 2255 break; 2256 2257 /* 2258 * Allocate a peripheral instance for 2259 * this device and start the probe 2260 * process. 2261 */ 2262 status = cam_periph_alloc(saregister, saoninvalidate, 2263 sacleanup, sastart, 2264 "sa", CAM_PERIPH_BIO, path, 2265 saasync, AC_FOUND_DEVICE, cgd); 2266 2267 if (status != CAM_REQ_CMP 2268 && status != CAM_REQ_INPROG) 2269 printf("saasync: Unable to probe new device " 2270 "due to status 0x%x\n", status); 2271 break; 2272 } 2273 default: 2274 cam_periph_async(periph, code, path, arg); 2275 break; 2276 } 2277 } 2278 2279 static void 2280 sasetupdev(struct sa_softc *softc, struct cdev *dev) 2281 { 2282 2283 dev->si_iosize_max = softc->maxio; 2284 dev->si_flags |= softc->si_flags; 2285 /* 2286 * Keep a count of how many non-alias devices we have created, 2287 * so we can make sure we clean them all up on shutdown. Aliases 2288 * are cleaned up when we destroy the device they're an alias for. 2289 */ 2290 if ((dev->si_flags & SI_ALIAS) == 0) 2291 softc->num_devs_to_destroy++; 2292 } 2293 2294 static void 2295 sasysctlinit(void *context, int pending) 2296 { 2297 struct cam_periph *periph; 2298 struct sa_softc *softc; 2299 char tmpstr[32], tmpstr2[16]; 2300 2301 periph = (struct cam_periph *)context; 2302 /* 2303 * If the periph is invalid, no need to setup the sysctls. 2304 */ 2305 if (periph->flags & CAM_PERIPH_INVALID) 2306 goto bailout; 2307 2308 softc = (struct sa_softc *)periph->softc; 2309 2310 snprintf(tmpstr, sizeof(tmpstr), "CAM SA unit %d", periph->unit_number); 2311 snprintf(tmpstr2, sizeof(tmpstr2), "%u", periph->unit_number); 2312 2313 sysctl_ctx_init(&softc->sysctl_ctx); 2314 softc->flags |= SA_FLAG_SCTX_INIT; 2315 softc->sysctl_tree = SYSCTL_ADD_NODE_WITH_LABEL(&softc->sysctl_ctx, 2316 SYSCTL_STATIC_CHILDREN(_kern_cam_sa), OID_AUTO, tmpstr2, 2317 CTLFLAG_RD, 0, tmpstr, "device_index"); 2318 if (softc->sysctl_tree == NULL) 2319 goto bailout; 2320 2321 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 2322 OID_AUTO, "allow_io_split", CTLFLAG_RDTUN | CTLFLAG_NOFETCH, 2323 &softc->allow_io_split, 0, "Allow Splitting I/O"); 2324 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 2325 OID_AUTO, "maxio", CTLFLAG_RD, 2326 &softc->maxio, 0, "Maximum I/O size"); 2327 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 2328 OID_AUTO, "cpi_maxio", CTLFLAG_RD, 2329 &softc->cpi_maxio, 0, "Maximum Controller I/O size"); 2330 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 2331 OID_AUTO, "inject_eom", CTLFLAG_RW, 2332 &softc->inject_eom, 0, "Queue EOM for the next write/read"); 2333 2334 bailout: 2335 /* 2336 * Release the reference that was held when this task was enqueued. 2337 */ 2338 cam_periph_release(periph); 2339 } 2340 2341 static cam_status 2342 saregister(struct cam_periph *periph, void *arg) 2343 { 2344 struct sa_softc *softc; 2345 struct ccb_getdev *cgd; 2346 struct ccb_pathinq cpi; 2347 struct make_dev_args args; 2348 caddr_t match; 2349 char tmpstr[80]; 2350 int error; 2351 2352 cgd = (struct ccb_getdev *)arg; 2353 if (cgd == NULL) { 2354 printf("saregister: no getdev CCB, can't register device\n"); 2355 return (CAM_REQ_CMP_ERR); 2356 } 2357 2358 softc = (struct sa_softc *) 2359 malloc(sizeof (*softc), M_SCSISA, M_NOWAIT | M_ZERO); 2360 if (softc == NULL) { 2361 printf("saregister: Unable to probe new device. " 2362 "Unable to allocate softc\n"); 2363 return (CAM_REQ_CMP_ERR); 2364 } 2365 softc->scsi_rev = SID_ANSI_REV(&cgd->inq_data); 2366 softc->state = SA_STATE_NORMAL; 2367 softc->fileno = (daddr_t) -1; 2368 softc->blkno = (daddr_t) -1; 2369 softc->rep_fileno = (daddr_t) -1; 2370 softc->rep_blkno = (daddr_t) -1; 2371 softc->partition = (daddr_t) -1; 2372 softc->bop = -1; 2373 softc->eop = -1; 2374 softc->bpew = -1; 2375 2376 bioq_init(&softc->bio_queue); 2377 softc->periph = periph; 2378 periph->softc = softc; 2379 2380 /* 2381 * See if this device has any quirks. 2382 */ 2383 match = cam_quirkmatch((caddr_t)&cgd->inq_data, 2384 (caddr_t)sa_quirk_table, 2385 nitems(sa_quirk_table), 2386 sizeof(*sa_quirk_table), scsi_inquiry_match); 2387 2388 if (match != NULL) { 2389 softc->quirks = ((struct sa_quirk_entry *)match)->quirks; 2390 softc->last_media_blksize = 2391 ((struct sa_quirk_entry *)match)->prefblk; 2392 } else 2393 softc->quirks = SA_QUIRK_NONE; 2394 2395 /* 2396 * Long format data for READ POSITION was introduced in SSC, which 2397 * was after SCSI-2. (Roughly equivalent to SCSI-3.) If the drive 2398 * reports that it is SCSI-2 or older, it is unlikely to support 2399 * long position data, but it might. Some drives from that era 2400 * claim to be SCSI-2, but do support long position information. 2401 * So, instead of immediately disabling long position information 2402 * for SCSI-2 devices, we'll try one pass through sagetpos(), and 2403 * then disable long position information if we get an error. 2404 */ 2405 if (cgd->inq_data.version <= SCSI_REV_CCS) 2406 softc->quirks |= SA_QUIRK_NO_LONG_POS; 2407 2408 if (cgd->inq_data.spc3_flags & SPC3_SID_PROTECT) { 2409 struct ccb_dev_advinfo cdai; 2410 struct scsi_vpd_extended_inquiry_data ext_inq; 2411 2412 bzero(&ext_inq, sizeof(ext_inq)); 2413 2414 xpt_setup_ccb(&cdai.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 2415 2416 cdai.ccb_h.func_code = XPT_DEV_ADVINFO; 2417 cdai.flags = CDAI_FLAG_NONE; 2418 cdai.buftype = CDAI_TYPE_EXT_INQ; 2419 cdai.bufsiz = sizeof(ext_inq); 2420 cdai.buf = (uint8_t *)&ext_inq; 2421 xpt_action((union ccb *)&cdai); 2422 2423 if ((cdai.ccb_h.status & CAM_DEV_QFRZN) != 0) 2424 cam_release_devq(cdai.ccb_h.path, 0, 0, 0, FALSE); 2425 if ((cdai.ccb_h.status == CAM_REQ_CMP) 2426 && (ext_inq.flags1 & SVPD_EID_SA_SPT_LBP)) 2427 softc->flags |= SA_FLAG_PROTECT_SUPP; 2428 } 2429 2430 xpt_path_inq(&cpi, periph->path); 2431 2432 /* 2433 * The SA driver supports a blocksize, but we don't know the 2434 * blocksize until we media is inserted. So, set a flag to 2435 * indicate that the blocksize is unavailable right now. 2436 */ 2437 cam_periph_unlock(periph); 2438 softc->device_stats = devstat_new_entry("sa", periph->unit_number, 0, 2439 DEVSTAT_BS_UNAVAILABLE, SID_TYPE(&cgd->inq_data) | 2440 XPORT_DEVSTAT_TYPE(cpi.transport), DEVSTAT_PRIORITY_TAPE); 2441 2442 /* 2443 * Load the default value that is either compiled in, or loaded 2444 * in the global kern.cam.sa.allow_io_split tunable. 2445 */ 2446 softc->allow_io_split = sa_allow_io_split; 2447 2448 /* 2449 * Load a per-instance tunable, if it exists. NOTE that this 2450 * tunable WILL GO AWAY in FreeBSD 11.0. 2451 */ 2452 snprintf(tmpstr, sizeof(tmpstr), "kern.cam.sa.%u.allow_io_split", 2453 periph->unit_number); 2454 TUNABLE_INT_FETCH(tmpstr, &softc->allow_io_split); 2455 2456 /* 2457 * If maxio isn't set, we fall back to DFLTPHYS. Otherwise we take 2458 * the smaller of cpi.maxio or MAXPHYS. 2459 */ 2460 if (cpi.maxio == 0) 2461 softc->maxio = DFLTPHYS; 2462 else if (cpi.maxio > MAXPHYS) 2463 softc->maxio = MAXPHYS; 2464 else 2465 softc->maxio = cpi.maxio; 2466 2467 /* 2468 * Record the controller's maximum I/O size so we can report it to 2469 * the user later. 2470 */ 2471 softc->cpi_maxio = cpi.maxio; 2472 2473 /* 2474 * By default we tell physio that we do not want our I/O split. 2475 * The user needs to have a 1:1 mapping between the size of his 2476 * write to a tape character device and the size of the write 2477 * that actually goes down to the drive. 2478 */ 2479 if (softc->allow_io_split == 0) 2480 softc->si_flags = SI_NOSPLIT; 2481 else 2482 softc->si_flags = 0; 2483 2484 TASK_INIT(&softc->sysctl_task, 0, sasysctlinit, periph); 2485 2486 /* 2487 * If the SIM supports unmapped I/O, let physio know that we can 2488 * handle unmapped buffers. 2489 */ 2490 if (cpi.hba_misc & PIM_UNMAPPED) 2491 softc->si_flags |= SI_UNMAPPED; 2492 2493 /* 2494 * Acquire a reference to the periph before we create the devfs 2495 * instances for it. We'll release this reference once the devfs 2496 * instances have been freed. 2497 */ 2498 if (cam_periph_acquire(periph) != 0) { 2499 xpt_print(periph->path, "%s: lost periph during " 2500 "registration!\n", __func__); 2501 cam_periph_lock(periph); 2502 return (CAM_REQ_CMP_ERR); 2503 } 2504 2505 make_dev_args_init(&args); 2506 args.mda_devsw = &sa_cdevsw; 2507 args.mda_si_drv1 = softc->periph; 2508 args.mda_uid = UID_ROOT; 2509 args.mda_gid = GID_OPERATOR; 2510 args.mda_mode = 0660; 2511 2512 args.mda_unit = SAMINOR(SA_CTLDEV, SA_ATYPE_R); 2513 error = make_dev_s(&args, &softc->devs.ctl_dev, "%s%d.ctl", 2514 periph->periph_name, periph->unit_number); 2515 if (error != 0) { 2516 cam_periph_lock(periph); 2517 return (CAM_REQ_CMP_ERR); 2518 } 2519 sasetupdev(softc, softc->devs.ctl_dev); 2520 2521 args.mda_unit = SAMINOR(SA_NOT_CTLDEV, SA_ATYPE_R); 2522 error = make_dev_s(&args, &softc->devs.r_dev, "%s%d", 2523 periph->periph_name, periph->unit_number); 2524 if (error != 0) { 2525 cam_periph_lock(periph); 2526 return (CAM_REQ_CMP_ERR); 2527 } 2528 sasetupdev(softc, softc->devs.r_dev); 2529 2530 args.mda_unit = SAMINOR(SA_NOT_CTLDEV, SA_ATYPE_NR); 2531 error = make_dev_s(&args, &softc->devs.nr_dev, "n%s%d", 2532 periph->periph_name, periph->unit_number); 2533 if (error != 0) { 2534 cam_periph_lock(periph); 2535 return (CAM_REQ_CMP_ERR); 2536 } 2537 sasetupdev(softc, softc->devs.nr_dev); 2538 2539 args.mda_unit = SAMINOR(SA_NOT_CTLDEV, SA_ATYPE_ER); 2540 error = make_dev_s(&args, &softc->devs.er_dev, "e%s%d", 2541 periph->periph_name, periph->unit_number); 2542 if (error != 0) { 2543 cam_periph_lock(periph); 2544 return (CAM_REQ_CMP_ERR); 2545 } 2546 sasetupdev(softc, softc->devs.er_dev); 2547 2548 cam_periph_lock(periph); 2549 2550 softc->density_type_bits[0] = 0; 2551 softc->density_type_bits[1] = SRDS_MEDIA; 2552 softc->density_type_bits[2] = SRDS_MEDIUM_TYPE; 2553 softc->density_type_bits[3] = SRDS_MEDIUM_TYPE | SRDS_MEDIA; 2554 /* 2555 * Bump the peripheral refcount for the sysctl thread, in case we 2556 * get invalidated before the thread has a chance to run. 2557 */ 2558 cam_periph_acquire(periph); 2559 taskqueue_enqueue(taskqueue_thread, &softc->sysctl_task); 2560 2561 /* 2562 * Add an async callback so that we get 2563 * notified if this device goes away. 2564 */ 2565 xpt_register_async(AC_LOST_DEVICE, saasync, periph, periph->path); 2566 2567 xpt_announce_periph(periph, NULL); 2568 xpt_announce_quirks(periph, softc->quirks, SA_QUIRK_BIT_STRING); 2569 2570 return (CAM_REQ_CMP); 2571 } 2572 2573 static void 2574 sastart(struct cam_periph *periph, union ccb *start_ccb) 2575 { 2576 struct sa_softc *softc; 2577 2578 softc = (struct sa_softc *)periph->softc; 2579 2580 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sastart\n")); 2581 2582 2583 switch (softc->state) { 2584 case SA_STATE_NORMAL: 2585 { 2586 /* Pull a buffer from the queue and get going on it */ 2587 struct bio *bp; 2588 2589 /* 2590 * See if there is a buf with work for us to do.. 2591 */ 2592 bp = bioq_first(&softc->bio_queue); 2593 if (bp == NULL) { 2594 xpt_release_ccb(start_ccb); 2595 } else if (((softc->flags & SA_FLAG_ERR_PENDING) != 0) 2596 || (softc->inject_eom != 0)) { 2597 struct bio *done_bp; 2598 2599 if (softc->inject_eom != 0) { 2600 softc->flags |= SA_FLAG_EOM_PENDING; 2601 softc->inject_eom = 0; 2602 /* 2603 * If we're injecting EOM for writes, we 2604 * need to keep PEWS set for 3 queries 2605 * to cover 2 position requests from the 2606 * kernel via sagetpos(), and then allow 2607 * for one for the user to see the BPEW 2608 * flag (e.g. via mt status). After that, 2609 * it will be cleared. 2610 */ 2611 if (bp->bio_cmd == BIO_WRITE) 2612 softc->set_pews_status = 3; 2613 else 2614 softc->set_pews_status = 1; 2615 } 2616 again: 2617 softc->queue_count--; 2618 bioq_remove(&softc->bio_queue, bp); 2619 bp->bio_resid = bp->bio_bcount; 2620 done_bp = bp; 2621 if ((softc->flags & SA_FLAG_EOM_PENDING) != 0) { 2622 /* 2623 * We have two different behaviors for 2624 * writes when we hit either Early Warning 2625 * or the PEWZ (Programmable Early Warning 2626 * Zone). The default behavior is that 2627 * for all writes that are currently 2628 * queued after the write where we saw the 2629 * early warning, we will return the write 2630 * with the residual equal to the count. 2631 * i.e. tell the application that 0 bytes 2632 * were written. 2633 * 2634 * The alternate behavior, which is enabled 2635 * when eot_warn is set, is that in 2636 * addition to setting the residual equal 2637 * to the count, we will set the error 2638 * to ENOSPC. 2639 * 2640 * In either case, once queued writes are 2641 * cleared out, we clear the error flag 2642 * (see below) and the application is free to 2643 * attempt to write more. 2644 */ 2645 if (softc->eot_warn != 0) { 2646 bp->bio_flags |= BIO_ERROR; 2647 bp->bio_error = ENOSPC; 2648 } else 2649 bp->bio_error = 0; 2650 } else if ((softc->flags & SA_FLAG_EOF_PENDING) != 0) { 2651 /* 2652 * This can only happen if we're reading 2653 * in fixed length mode. In this case, 2654 * we dump the rest of the list the 2655 * same way. 2656 */ 2657 bp->bio_error = 0; 2658 if (bioq_first(&softc->bio_queue) != NULL) { 2659 biodone(done_bp); 2660 goto again; 2661 } 2662 } else if ((softc->flags & SA_FLAG_EIO_PENDING) != 0) { 2663 bp->bio_error = EIO; 2664 bp->bio_flags |= BIO_ERROR; 2665 } 2666 bp = bioq_first(&softc->bio_queue); 2667 /* 2668 * Only if we have no other buffers queued up 2669 * do we clear the pending error flag. 2670 */ 2671 if (bp == NULL) 2672 softc->flags &= ~SA_FLAG_ERR_PENDING; 2673 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, 2674 ("sastart- ERR_PENDING now 0x%x, bp is %sNULL, " 2675 "%d more buffers queued up\n", 2676 (softc->flags & SA_FLAG_ERR_PENDING), 2677 (bp != NULL)? "not " : " ", softc->queue_count)); 2678 xpt_release_ccb(start_ccb); 2679 biodone(done_bp); 2680 } else { 2681 u_int32_t length; 2682 2683 bioq_remove(&softc->bio_queue, bp); 2684 softc->queue_count--; 2685 2686 length = bp->bio_bcount; 2687 2688 if ((softc->flags & SA_FLAG_FIXED) != 0) { 2689 if (softc->blk_shift != 0) { 2690 length = length >> softc->blk_shift; 2691 } else if (softc->media_blksize != 0) { 2692 length = length / softc->media_blksize; 2693 } else { 2694 bp->bio_error = EIO; 2695 xpt_print(periph->path, "zero blocksize" 2696 " for FIXED length writes?\n"); 2697 biodone(bp); 2698 break; 2699 } 2700 #if 0 2701 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_INFO, 2702 ("issuing a %d fixed record %s\n", 2703 length, (bp->bio_cmd == BIO_READ)? "read" : 2704 "write")); 2705 #endif 2706 } else { 2707 #if 0 2708 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_INFO, 2709 ("issuing a %d variable byte %s\n", 2710 length, (bp->bio_cmd == BIO_READ)? "read" : 2711 "write")); 2712 #endif 2713 } 2714 devstat_start_transaction_bio(softc->device_stats, bp); 2715 /* 2716 * Some people have theorized that we should 2717 * suppress illegal length indication if we are 2718 * running in variable block mode so that we don't 2719 * have to request sense every time our requested 2720 * block size is larger than the written block. 2721 * The residual information from the ccb allows 2722 * us to identify this situation anyway. The only 2723 * problem with this is that we will not get 2724 * information about blocks that are larger than 2725 * our read buffer unless we set the block size 2726 * in the mode page to something other than 0. 2727 * 2728 * I believe that this is a non-issue. If user apps 2729 * don't adjust their read size to match our record 2730 * size, that's just life. Anyway, the typical usage 2731 * would be to issue, e.g., 64KB reads and occasionally 2732 * have to do deal with 512 byte or 1KB intermediate 2733 * records. 2734 * 2735 * That said, though, we now support setting the 2736 * SILI bit on reads, and we set the blocksize to 4 2737 * bytes when we do that. This gives us 2738 * compatibility with software that wants this, 2739 * although the only real difference between that 2740 * and not setting the SILI bit on reads is that we 2741 * won't get a check condition on reads where our 2742 * request size is larger than the block on tape. 2743 * That probably only makes a real difference in 2744 * non-packetized SCSI, where you have to go back 2745 * to the drive to request sense and thus incur 2746 * more latency. 2747 */ 2748 softc->dsreg = (bp->bio_cmd == BIO_READ)? 2749 MTIO_DSREG_RD : MTIO_DSREG_WR; 2750 scsi_sa_read_write(&start_ccb->csio, 0, sadone, 2751 MSG_SIMPLE_Q_TAG, (bp->bio_cmd == BIO_READ ? 2752 SCSI_RW_READ : SCSI_RW_WRITE) | 2753 ((bp->bio_flags & BIO_UNMAPPED) != 0 ? 2754 SCSI_RW_BIO : 0), softc->sili, 2755 (softc->flags & SA_FLAG_FIXED) != 0, length, 2756 (bp->bio_flags & BIO_UNMAPPED) != 0 ? (void *)bp : 2757 bp->bio_data, bp->bio_bcount, SSD_FULL_SIZE, 2758 IO_TIMEOUT); 2759 start_ccb->ccb_h.ccb_pflags &= ~SA_POSITION_UPDATED; 2760 start_ccb->ccb_h.ccb_bp = bp; 2761 bp = bioq_first(&softc->bio_queue); 2762 xpt_action(start_ccb); 2763 } 2764 2765 if (bp != NULL) { 2766 /* Have more work to do, so ensure we stay scheduled */ 2767 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 2768 } 2769 break; 2770 } 2771 case SA_STATE_ABNORMAL: 2772 default: 2773 panic("state 0x%x in sastart", softc->state); 2774 break; 2775 } 2776 } 2777 2778 2779 static void 2780 sadone(struct cam_periph *periph, union ccb *done_ccb) 2781 { 2782 struct sa_softc *softc; 2783 struct ccb_scsiio *csio; 2784 struct bio *bp; 2785 int error; 2786 2787 softc = (struct sa_softc *)periph->softc; 2788 csio = &done_ccb->csio; 2789 2790 softc->dsreg = MTIO_DSREG_REST; 2791 bp = (struct bio *)done_ccb->ccb_h.ccb_bp; 2792 error = 0; 2793 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 2794 if ((error = saerror(done_ccb, 0, 0)) == ERESTART) { 2795 /* 2796 * A retry was scheduled, so just return. 2797 */ 2798 return; 2799 } 2800 } 2801 2802 if (error == EIO) { 2803 2804 /* 2805 * Catastrophic error. Mark the tape as frozen 2806 * (we no longer know tape position). 2807 * 2808 * Return all queued I/O with EIO, and unfreeze 2809 * our queue so that future transactions that 2810 * attempt to fix this problem can get to the 2811 * device. 2812 * 2813 */ 2814 2815 softc->flags |= SA_FLAG_TAPE_FROZEN; 2816 bioq_flush(&softc->bio_queue, NULL, EIO); 2817 } 2818 if (error != 0) { 2819 bp->bio_resid = bp->bio_bcount; 2820 bp->bio_error = error; 2821 bp->bio_flags |= BIO_ERROR; 2822 /* 2823 * In the error case, position is updated in saerror. 2824 */ 2825 } else { 2826 bp->bio_resid = csio->resid; 2827 bp->bio_error = 0; 2828 if (csio->resid != 0) { 2829 bp->bio_flags |= BIO_ERROR; 2830 } 2831 if (bp->bio_cmd == BIO_WRITE) { 2832 softc->flags |= SA_FLAG_TAPE_WRITTEN; 2833 softc->filemarks = 0; 2834 } 2835 if (!(csio->ccb_h.ccb_pflags & SA_POSITION_UPDATED) && 2836 (softc->blkno != (daddr_t) -1)) { 2837 if ((softc->flags & SA_FLAG_FIXED) != 0) { 2838 u_int32_t l; 2839 if (softc->blk_shift != 0) { 2840 l = bp->bio_bcount >> 2841 softc->blk_shift; 2842 } else { 2843 l = bp->bio_bcount / 2844 softc->media_blksize; 2845 } 2846 softc->blkno += (daddr_t) l; 2847 } else { 2848 softc->blkno++; 2849 } 2850 } 2851 } 2852 /* 2853 * If we had an error (immediate or pending), 2854 * release the device queue now. 2855 */ 2856 if (error || (softc->flags & SA_FLAG_ERR_PENDING)) 2857 cam_release_devq(done_ccb->ccb_h.path, 0, 0, 0, 0); 2858 if (error || bp->bio_resid) { 2859 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, 2860 ("error %d resid %ld count %ld\n", error, 2861 bp->bio_resid, bp->bio_bcount)); 2862 } 2863 biofinish(bp, softc->device_stats, 0); 2864 xpt_release_ccb(done_ccb); 2865 } 2866 2867 /* 2868 * Mount the tape (make sure it's ready for I/O). 2869 */ 2870 static int 2871 samount(struct cam_periph *periph, int oflags, struct cdev *dev) 2872 { 2873 struct sa_softc *softc; 2874 union ccb *ccb; 2875 int error; 2876 2877 /* 2878 * oflags can be checked for 'kind' of open (read-only check) - later 2879 * dev can be checked for a control-mode or compression open - later 2880 */ 2881 UNUSED_PARAMETER(oflags); 2882 UNUSED_PARAMETER(dev); 2883 2884 2885 softc = (struct sa_softc *)periph->softc; 2886 2887 /* 2888 * This should determine if something has happened since the last 2889 * open/mount that would invalidate the mount. We do *not* want 2890 * to retry this command- we just want the status. But we only 2891 * do this if we're mounted already- if we're not mounted, 2892 * we don't care about the unit read state and can instead use 2893 * this opportunity to attempt to reserve the tape unit. 2894 */ 2895 2896 if (softc->flags & SA_FLAG_TAPE_MOUNTED) { 2897 ccb = cam_periph_getccb(periph, 1); 2898 scsi_test_unit_ready(&ccb->csio, 0, NULL, 2899 MSG_SIMPLE_Q_TAG, SSD_FULL_SIZE, IO_TIMEOUT); 2900 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, 2901 softc->device_stats); 2902 if (error == ENXIO) { 2903 softc->flags &= ~SA_FLAG_TAPE_MOUNTED; 2904 scsi_test_unit_ready(&ccb->csio, 0, NULL, 2905 MSG_SIMPLE_Q_TAG, SSD_FULL_SIZE, IO_TIMEOUT); 2906 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, 2907 softc->device_stats); 2908 } else if (error) { 2909 /* 2910 * We don't need to freeze the tape because we 2911 * will now attempt to rewind/load it. 2912 */ 2913 softc->flags &= ~SA_FLAG_TAPE_MOUNTED; 2914 if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) { 2915 xpt_print(periph->path, 2916 "error %d on TUR in samount\n", error); 2917 } 2918 } 2919 } else { 2920 error = sareservereleaseunit(periph, TRUE); 2921 if (error) { 2922 return (error); 2923 } 2924 ccb = cam_periph_getccb(periph, 1); 2925 scsi_test_unit_ready(&ccb->csio, 0, NULL, 2926 MSG_SIMPLE_Q_TAG, SSD_FULL_SIZE, IO_TIMEOUT); 2927 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, 2928 softc->device_stats); 2929 } 2930 2931 if ((softc->flags & SA_FLAG_TAPE_MOUNTED) == 0) { 2932 struct scsi_read_block_limits_data *rblim = NULL; 2933 int comp_enabled, comp_supported; 2934 u_int8_t write_protect, guessing = 0; 2935 2936 /* 2937 * Clear out old state. 2938 */ 2939 softc->flags &= ~(SA_FLAG_TAPE_WP|SA_FLAG_TAPE_WRITTEN| 2940 SA_FLAG_ERR_PENDING|SA_FLAG_COMPRESSION); 2941 softc->filemarks = 0; 2942 2943 /* 2944 * *Very* first off, make sure we're loaded to BOT. 2945 */ 2946 scsi_load_unload(&ccb->csio, 2, NULL, MSG_SIMPLE_Q_TAG, FALSE, 2947 FALSE, FALSE, 1, SSD_FULL_SIZE, REWIND_TIMEOUT); 2948 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, 2949 softc->device_stats); 2950 2951 /* 2952 * In case this doesn't work, do a REWIND instead 2953 */ 2954 if (error) { 2955 scsi_rewind(&ccb->csio, 2, NULL, MSG_SIMPLE_Q_TAG, 2956 FALSE, SSD_FULL_SIZE, REWIND_TIMEOUT); 2957 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, 2958 softc->device_stats); 2959 } 2960 if (error) { 2961 xpt_release_ccb(ccb); 2962 goto exit; 2963 } 2964 2965 /* 2966 * Do a dummy test read to force access to the 2967 * media so that the drive will really know what's 2968 * there. We actually don't really care what the 2969 * blocksize on tape is and don't expect to really 2970 * read a full record. 2971 */ 2972 rblim = (struct scsi_read_block_limits_data *) 2973 malloc(8192, M_SCSISA, M_NOWAIT); 2974 if (rblim == NULL) { 2975 xpt_print(periph->path, "no memory for test read\n"); 2976 xpt_release_ccb(ccb); 2977 error = ENOMEM; 2978 goto exit; 2979 } 2980 2981 if ((softc->quirks & SA_QUIRK_NODREAD) == 0) { 2982 scsi_sa_read_write(&ccb->csio, 0, NULL, 2983 MSG_SIMPLE_Q_TAG, 1, FALSE, 0, 8192, 2984 (void *) rblim, 8192, SSD_FULL_SIZE, 2985 IO_TIMEOUT); 2986 (void) cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, 2987 softc->device_stats); 2988 scsi_rewind(&ccb->csio, 1, NULL, MSG_SIMPLE_Q_TAG, 2989 FALSE, SSD_FULL_SIZE, REWIND_TIMEOUT); 2990 error = cam_periph_runccb(ccb, saerror, CAM_RETRY_SELTO, 2991 SF_NO_PRINT | SF_RETRY_UA, 2992 softc->device_stats); 2993 if (error) { 2994 xpt_print(periph->path, 2995 "unable to rewind after test read\n"); 2996 xpt_release_ccb(ccb); 2997 goto exit; 2998 } 2999 } 3000 3001 /* 3002 * Next off, determine block limits. 3003 */ 3004 scsi_read_block_limits(&ccb->csio, 5, NULL, MSG_SIMPLE_Q_TAG, 3005 rblim, SSD_FULL_SIZE, SCSIOP_TIMEOUT); 3006 3007 error = cam_periph_runccb(ccb, saerror, CAM_RETRY_SELTO, 3008 SF_NO_PRINT | SF_RETRY_UA, softc->device_stats); 3009 3010 xpt_release_ccb(ccb); 3011 3012 if (error != 0) { 3013 /* 3014 * If it's less than SCSI-2, READ BLOCK LIMITS is not 3015 * a MANDATORY command. Anyway- it doesn't matter- 3016 * we can proceed anyway. 3017 */ 3018 softc->blk_gran = 0; 3019 softc->max_blk = ~0; 3020 softc->min_blk = 0; 3021 } else { 3022 if (softc->scsi_rev >= SCSI_REV_SPC) { 3023 softc->blk_gran = RBL_GRAN(rblim); 3024 } else { 3025 softc->blk_gran = 0; 3026 } 3027 /* 3028 * We take max_blk == min_blk to mean a default to 3029 * fixed mode- but note that whatever we get out of 3030 * sagetparams below will actually determine whether 3031 * we are actually *in* fixed mode. 3032 */ 3033 softc->max_blk = scsi_3btoul(rblim->maximum); 3034 softc->min_blk = scsi_2btoul(rblim->minimum); 3035 3036 3037 } 3038 /* 3039 * Next, perform a mode sense to determine 3040 * current density, blocksize, compression etc. 3041 */ 3042 error = sagetparams(periph, SA_PARAM_ALL, 3043 &softc->media_blksize, 3044 &softc->media_density, 3045 &softc->media_numblks, 3046 &softc->buffer_mode, &write_protect, 3047 &softc->speed, &comp_supported, 3048 &comp_enabled, &softc->comp_algorithm, 3049 NULL, NULL, 0, 0); 3050 3051 if (error != 0) { 3052 /* 3053 * We could work a little harder here. We could 3054 * adjust our attempts to get information. It 3055 * might be an ancient tape drive. If someone 3056 * nudges us, we'll do that. 3057 */ 3058 goto exit; 3059 } 3060 3061 /* 3062 * If no quirk has determined that this is a device that is 3063 * preferred to be in fixed or variable mode, now is the time 3064 * to find out. 3065 */ 3066 if ((softc->quirks & (SA_QUIRK_FIXED|SA_QUIRK_VARIABLE)) == 0) { 3067 guessing = 1; 3068 /* 3069 * This could be expensive to find out. Luckily we 3070 * only need to do this once. If we start out in 3071 * 'default' mode, try and set ourselves to one 3072 * of the densities that would determine a wad 3073 * of other stuff. Go from highest to lowest. 3074 */ 3075 if (softc->media_density == SCSI_DEFAULT_DENSITY) { 3076 int i; 3077 static u_int8_t ctry[] = { 3078 SCSI_DENSITY_HALFINCH_PE, 3079 SCSI_DENSITY_HALFINCH_6250C, 3080 SCSI_DENSITY_HALFINCH_6250, 3081 SCSI_DENSITY_HALFINCH_1600, 3082 SCSI_DENSITY_HALFINCH_800, 3083 SCSI_DENSITY_QIC_4GB, 3084 SCSI_DENSITY_QIC_2GB, 3085 SCSI_DENSITY_QIC_525_320, 3086 SCSI_DENSITY_QIC_150, 3087 SCSI_DENSITY_QIC_120, 3088 SCSI_DENSITY_QIC_24, 3089 SCSI_DENSITY_QIC_11_9TRK, 3090 SCSI_DENSITY_QIC_11_4TRK, 3091 SCSI_DENSITY_QIC_1320, 3092 SCSI_DENSITY_QIC_3080, 3093 0 3094 }; 3095 for (i = 0; ctry[i]; i++) { 3096 error = sasetparams(periph, 3097 SA_PARAM_DENSITY, 0, ctry[i], 3098 0, SF_NO_PRINT); 3099 if (error == 0) { 3100 softc->media_density = ctry[i]; 3101 break; 3102 } 3103 } 3104 } 3105 switch (softc->media_density) { 3106 case SCSI_DENSITY_QIC_11_4TRK: 3107 case SCSI_DENSITY_QIC_11_9TRK: 3108 case SCSI_DENSITY_QIC_24: 3109 case SCSI_DENSITY_QIC_120: 3110 case SCSI_DENSITY_QIC_150: 3111 case SCSI_DENSITY_QIC_525_320: 3112 case SCSI_DENSITY_QIC_1320: 3113 case SCSI_DENSITY_QIC_3080: 3114 softc->quirks &= ~SA_QUIRK_2FM; 3115 softc->quirks |= SA_QUIRK_FIXED|SA_QUIRK_1FM; 3116 softc->last_media_blksize = 512; 3117 break; 3118 case SCSI_DENSITY_QIC_4GB: 3119 case SCSI_DENSITY_QIC_2GB: 3120 softc->quirks &= ~SA_QUIRK_2FM; 3121 softc->quirks |= SA_QUIRK_FIXED|SA_QUIRK_1FM; 3122 softc->last_media_blksize = 1024; 3123 break; 3124 default: 3125 softc->last_media_blksize = 3126 softc->media_blksize; 3127 softc->quirks |= SA_QUIRK_VARIABLE; 3128 break; 3129 } 3130 } 3131 3132 /* 3133 * If no quirk has determined that this is a device that needs 3134 * to have 2 Filemarks at EOD, now is the time to find out. 3135 */ 3136 3137 if ((softc->quirks & SA_QUIRK_2FM) == 0) { 3138 switch (softc->media_density) { 3139 case SCSI_DENSITY_HALFINCH_800: 3140 case SCSI_DENSITY_HALFINCH_1600: 3141 case SCSI_DENSITY_HALFINCH_6250: 3142 case SCSI_DENSITY_HALFINCH_6250C: 3143 case SCSI_DENSITY_HALFINCH_PE: 3144 softc->quirks &= ~SA_QUIRK_1FM; 3145 softc->quirks |= SA_QUIRK_2FM; 3146 break; 3147 default: 3148 break; 3149 } 3150 } 3151 3152 /* 3153 * Now validate that some info we got makes sense. 3154 */ 3155 if ((softc->max_blk < softc->media_blksize) || 3156 (softc->min_blk > softc->media_blksize && 3157 softc->media_blksize)) { 3158 xpt_print(periph->path, 3159 "BLOCK LIMITS (%d..%d) could not match current " 3160 "block settings (%d)- adjusting\n", softc->min_blk, 3161 softc->max_blk, softc->media_blksize); 3162 softc->max_blk = softc->min_blk = 3163 softc->media_blksize; 3164 } 3165 3166 /* 3167 * Now put ourselves into the right frame of mind based 3168 * upon quirks... 3169 */ 3170 tryagain: 3171 /* 3172 * If we want to be in FIXED mode and our current blocksize 3173 * is not equal to our last blocksize (if nonzero), try and 3174 * set ourselves to this last blocksize (as the 'preferred' 3175 * block size). The initial quirkmatch at registry sets the 3176 * initial 'last' blocksize. If, for whatever reason, this 3177 * 'last' blocksize is zero, set the blocksize to 512, 3178 * or min_blk if that's larger. 3179 */ 3180 if ((softc->quirks & SA_QUIRK_FIXED) && 3181 (softc->quirks & SA_QUIRK_NO_MODESEL) == 0 && 3182 (softc->media_blksize != softc->last_media_blksize)) { 3183 softc->media_blksize = softc->last_media_blksize; 3184 if (softc->media_blksize == 0) { 3185 softc->media_blksize = 512; 3186 if (softc->media_blksize < softc->min_blk) { 3187 softc->media_blksize = softc->min_blk; 3188 } 3189 } 3190 error = sasetparams(periph, SA_PARAM_BLOCKSIZE, 3191 softc->media_blksize, 0, 0, SF_NO_PRINT); 3192 if (error) { 3193 xpt_print(periph->path, 3194 "unable to set fixed blocksize to %d\n", 3195 softc->media_blksize); 3196 goto exit; 3197 } 3198 } 3199 3200 if ((softc->quirks & SA_QUIRK_VARIABLE) && 3201 (softc->media_blksize != 0)) { 3202 softc->last_media_blksize = softc->media_blksize; 3203 softc->media_blksize = 0; 3204 error = sasetparams(periph, SA_PARAM_BLOCKSIZE, 3205 0, 0, 0, SF_NO_PRINT); 3206 if (error) { 3207 /* 3208 * If this fails and we were guessing, just 3209 * assume that we got it wrong and go try 3210 * fixed block mode. Don't even check against 3211 * density code at this point. 3212 */ 3213 if (guessing) { 3214 softc->quirks &= ~SA_QUIRK_VARIABLE; 3215 softc->quirks |= SA_QUIRK_FIXED; 3216 if (softc->last_media_blksize == 0) 3217 softc->last_media_blksize = 512; 3218 goto tryagain; 3219 } 3220 xpt_print(periph->path, 3221 "unable to set variable blocksize\n"); 3222 goto exit; 3223 } 3224 } 3225 3226 /* 3227 * Now that we have the current block size, 3228 * set up some parameters for sastart's usage. 3229 */ 3230 if (softc->media_blksize) { 3231 softc->flags |= SA_FLAG_FIXED; 3232 if (powerof2(softc->media_blksize)) { 3233 softc->blk_shift = 3234 ffs(softc->media_blksize) - 1; 3235 softc->blk_mask = softc->media_blksize - 1; 3236 } else { 3237 softc->blk_mask = ~0; 3238 softc->blk_shift = 0; 3239 } 3240 } else { 3241 /* 3242 * The SCSI-3 spec allows 0 to mean "unspecified". 3243 * The SCSI-1 spec allows 0 to mean 'infinite'. 3244 * 3245 * Either works here. 3246 */ 3247 if (softc->max_blk == 0) { 3248 softc->max_blk = ~0; 3249 } 3250 softc->blk_shift = 0; 3251 if (softc->blk_gran != 0) { 3252 softc->blk_mask = softc->blk_gran - 1; 3253 } else { 3254 softc->blk_mask = 0; 3255 } 3256 } 3257 3258 if (write_protect) 3259 softc->flags |= SA_FLAG_TAPE_WP; 3260 3261 if (comp_supported) { 3262 if (softc->saved_comp_algorithm == 0) 3263 softc->saved_comp_algorithm = 3264 softc->comp_algorithm; 3265 softc->flags |= SA_FLAG_COMP_SUPP; 3266 if (comp_enabled) 3267 softc->flags |= SA_FLAG_COMP_ENABLED; 3268 } else 3269 softc->flags |= SA_FLAG_COMP_UNSUPP; 3270 3271 if ((softc->buffer_mode == SMH_SA_BUF_MODE_NOBUF) && 3272 (softc->quirks & SA_QUIRK_NO_MODESEL) == 0) { 3273 error = sasetparams(periph, SA_PARAM_BUFF_MODE, 0, 3274 0, 0, SF_NO_PRINT); 3275 if (error == 0) { 3276 softc->buffer_mode = SMH_SA_BUF_MODE_SIBUF; 3277 } else { 3278 xpt_print(periph->path, 3279 "unable to set buffered mode\n"); 3280 } 3281 error = 0; /* not an error */ 3282 } 3283 3284 3285 if (error == 0) { 3286 softc->flags |= SA_FLAG_TAPE_MOUNTED; 3287 } 3288 exit: 3289 if (rblim != NULL) 3290 free(rblim, M_SCSISA); 3291 3292 if (error != 0) { 3293 softc->dsreg = MTIO_DSREG_NIL; 3294 } else { 3295 softc->fileno = softc->blkno = 0; 3296 softc->rep_fileno = softc->rep_blkno = -1; 3297 softc->partition = 0; 3298 softc->dsreg = MTIO_DSREG_REST; 3299 } 3300 #ifdef SA_1FM_AT_EOD 3301 if ((softc->quirks & SA_QUIRK_2FM) == 0) 3302 softc->quirks |= SA_QUIRK_1FM; 3303 #else 3304 if ((softc->quirks & SA_QUIRK_1FM) == 0) 3305 softc->quirks |= SA_QUIRK_2FM; 3306 #endif 3307 } else 3308 xpt_release_ccb(ccb); 3309 3310 /* 3311 * If we return an error, we're not mounted any more, 3312 * so release any device reservation. 3313 */ 3314 if (error != 0) { 3315 (void) sareservereleaseunit(periph, FALSE); 3316 } else { 3317 /* 3318 * Clear I/O residual. 3319 */ 3320 softc->last_io_resid = 0; 3321 softc->last_ctl_resid = 0; 3322 } 3323 return (error); 3324 } 3325 3326 /* 3327 * How many filemarks do we need to write if we were to terminate the 3328 * tape session right now? Note that this can be a negative number 3329 */ 3330 3331 static int 3332 samarkswanted(struct cam_periph *periph) 3333 { 3334 int markswanted; 3335 struct sa_softc *softc; 3336 3337 softc = (struct sa_softc *)periph->softc; 3338 markswanted = 0; 3339 if ((softc->flags & SA_FLAG_TAPE_WRITTEN) != 0) { 3340 markswanted++; 3341 if (softc->quirks & SA_QUIRK_2FM) 3342 markswanted++; 3343 } 3344 markswanted -= softc->filemarks; 3345 return (markswanted); 3346 } 3347 3348 static int 3349 sacheckeod(struct cam_periph *periph) 3350 { 3351 int error; 3352 int markswanted; 3353 3354 markswanted = samarkswanted(periph); 3355 3356 if (markswanted > 0) { 3357 error = sawritefilemarks(periph, markswanted, FALSE, FALSE); 3358 } else { 3359 error = 0; 3360 } 3361 return (error); 3362 } 3363 3364 static int 3365 saerror(union ccb *ccb, u_int32_t cflgs, u_int32_t sflgs) 3366 { 3367 static const char *toobig = 3368 "%d-byte tape record bigger than supplied buffer\n"; 3369 struct cam_periph *periph; 3370 struct sa_softc *softc; 3371 struct ccb_scsiio *csio; 3372 struct scsi_sense_data *sense; 3373 uint64_t resid = 0; 3374 int64_t info = 0; 3375 cam_status status; 3376 int error_code, sense_key, asc, ascq, error, aqvalid, stream_valid; 3377 int sense_len; 3378 uint8_t stream_bits; 3379 3380 periph = xpt_path_periph(ccb->ccb_h.path); 3381 softc = (struct sa_softc *)periph->softc; 3382 csio = &ccb->csio; 3383 sense = &csio->sense_data; 3384 sense_len = csio->sense_len - csio->sense_resid; 3385 scsi_extract_sense_len(sense, sense_len, &error_code, &sense_key, 3386 &asc, &ascq, /*show_errors*/ 1); 3387 if (asc != -1 && ascq != -1) 3388 aqvalid = 1; 3389 else 3390 aqvalid = 0; 3391 if (scsi_get_stream_info(sense, sense_len, NULL, &stream_bits) == 0) 3392 stream_valid = 1; 3393 else 3394 stream_valid = 0; 3395 error = 0; 3396 3397 status = csio->ccb_h.status & CAM_STATUS_MASK; 3398 3399 /* 3400 * Calculate/latch up, any residuals... We do this in a funny 2-step 3401 * so we can print stuff here if we have CAM_DEBUG enabled for this 3402 * unit. 3403 */ 3404 if (status == CAM_SCSI_STATUS_ERROR) { 3405 if (scsi_get_sense_info(sense, sense_len, SSD_DESC_INFO, &resid, 3406 &info) == 0) { 3407 if ((softc->flags & SA_FLAG_FIXED) != 0) 3408 resid *= softc->media_blksize; 3409 } else { 3410 resid = csio->dxfer_len; 3411 info = resid; 3412 if ((softc->flags & SA_FLAG_FIXED) != 0) { 3413 if (softc->media_blksize) 3414 info /= softc->media_blksize; 3415 } 3416 } 3417 if (csio->cdb_io.cdb_bytes[0] == SA_READ || 3418 csio->cdb_io.cdb_bytes[0] == SA_WRITE) { 3419 bcopy((caddr_t) sense, (caddr_t) &softc->last_io_sense, 3420 sizeof (struct scsi_sense_data)); 3421 bcopy(csio->cdb_io.cdb_bytes, softc->last_io_cdb, 3422 (int) csio->cdb_len); 3423 softc->last_io_resid = resid; 3424 softc->last_resid_was_io = 1; 3425 } else { 3426 bcopy((caddr_t) sense, (caddr_t) &softc->last_ctl_sense, 3427 sizeof (struct scsi_sense_data)); 3428 bcopy(csio->cdb_io.cdb_bytes, softc->last_ctl_cdb, 3429 (int) csio->cdb_len); 3430 softc->last_ctl_resid = resid; 3431 softc->last_resid_was_io = 0; 3432 } 3433 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, ("CDB[0]=0x%x Key 0x%x " 3434 "ASC/ASCQ 0x%x/0x%x CAM STATUS 0x%x flags 0x%x resid %jd " 3435 "dxfer_len %d\n", csio->cdb_io.cdb_bytes[0] & 0xff, 3436 sense_key, asc, ascq, status, 3437 (stream_valid) ? stream_bits : 0, (intmax_t)resid, 3438 csio->dxfer_len)); 3439 } else { 3440 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, 3441 ("Cam Status 0x%x\n", status)); 3442 } 3443 3444 switch (status) { 3445 case CAM_REQ_CMP: 3446 return (0); 3447 case CAM_SCSI_STATUS_ERROR: 3448 /* 3449 * If a read/write command, we handle it here. 3450 */ 3451 if (csio->cdb_io.cdb_bytes[0] == SA_READ || 3452 csio->cdb_io.cdb_bytes[0] == SA_WRITE) { 3453 break; 3454 } 3455 /* 3456 * If this was just EOM/EOP, Filemark, Setmark, ILI or 3457 * PEW detected on a non read/write command, we assume 3458 * it's not an error and propagate the residual and return. 3459 */ 3460 if ((aqvalid && asc == 0 && ((ascq > 0 && ascq <= 5) 3461 || (ascq == 0x07))) 3462 || (aqvalid == 0 && sense_key == SSD_KEY_NO_SENSE)) { 3463 csio->resid = resid; 3464 QFRLS(ccb); 3465 return (0); 3466 } 3467 /* 3468 * Otherwise, we let the common code handle this. 3469 */ 3470 return (cam_periph_error(ccb, cflgs, sflgs)); 3471 3472 /* 3473 * XXX: To Be Fixed 3474 * We cannot depend upon CAM honoring retry counts for these. 3475 */ 3476 case CAM_SCSI_BUS_RESET: 3477 case CAM_BDR_SENT: 3478 if (ccb->ccb_h.retry_count <= 0) { 3479 return (EIO); 3480 } 3481 /* FALLTHROUGH */ 3482 default: 3483 return (cam_periph_error(ccb, cflgs, sflgs)); 3484 } 3485 3486 /* 3487 * Handle filemark, end of tape, mismatched record sizes.... 3488 * From this point out, we're only handling read/write cases. 3489 * Handle writes && reads differently. 3490 */ 3491 3492 if (csio->cdb_io.cdb_bytes[0] == SA_WRITE) { 3493 if (sense_key == SSD_KEY_VOLUME_OVERFLOW) { 3494 csio->resid = resid; 3495 error = ENOSPC; 3496 } else if ((stream_valid != 0) && (stream_bits & SSD_EOM)) { 3497 softc->flags |= SA_FLAG_EOM_PENDING; 3498 /* 3499 * Grotesque as it seems, the few times 3500 * I've actually seen a non-zero resid, 3501 * the tape drive actually lied and had 3502 * written all the data!. 3503 */ 3504 csio->resid = 0; 3505 } 3506 } else { 3507 csio->resid = resid; 3508 if (sense_key == SSD_KEY_BLANK_CHECK) { 3509 if (softc->quirks & SA_QUIRK_1FM) { 3510 error = 0; 3511 softc->flags |= SA_FLAG_EOM_PENDING; 3512 } else { 3513 error = EIO; 3514 } 3515 } else if ((stream_valid != 0) && (stream_bits & SSD_FILEMARK)){ 3516 if (softc->flags & SA_FLAG_FIXED) { 3517 error = -1; 3518 softc->flags |= SA_FLAG_EOF_PENDING; 3519 } 3520 /* 3521 * Unconditionally, if we detected a filemark on a read, 3522 * mark that we've run moved a file ahead. 3523 */ 3524 if (softc->fileno != (daddr_t) -1) { 3525 softc->fileno++; 3526 softc->blkno = 0; 3527 csio->ccb_h.ccb_pflags |= SA_POSITION_UPDATED; 3528 } 3529 } 3530 } 3531 3532 /* 3533 * Incorrect Length usually applies to read, but can apply to writes. 3534 */ 3535 if (error == 0 && (stream_valid != 0) && (stream_bits & SSD_ILI)) { 3536 if (info < 0) { 3537 xpt_print(csio->ccb_h.path, toobig, 3538 csio->dxfer_len - info); 3539 csio->resid = csio->dxfer_len; 3540 error = EIO; 3541 } else { 3542 csio->resid = resid; 3543 if (softc->flags & SA_FLAG_FIXED) { 3544 softc->flags |= SA_FLAG_EIO_PENDING; 3545 } 3546 /* 3547 * Bump the block number if we hadn't seen a filemark. 3548 * Do this independent of errors (we've moved anyway). 3549 */ 3550 if ((stream_valid == 0) || 3551 (stream_bits & SSD_FILEMARK) == 0) { 3552 if (softc->blkno != (daddr_t) -1) { 3553 softc->blkno++; 3554 csio->ccb_h.ccb_pflags |= 3555 SA_POSITION_UPDATED; 3556 } 3557 } 3558 } 3559 } 3560 3561 if (error <= 0) { 3562 /* 3563 * Unfreeze the queue if frozen as we're not returning anything 3564 * to our waiters that would indicate an I/O error has occurred 3565 * (yet). 3566 */ 3567 QFRLS(ccb); 3568 error = 0; 3569 } 3570 return (error); 3571 } 3572 3573 static int 3574 sagetparams(struct cam_periph *periph, sa_params params_to_get, 3575 u_int32_t *blocksize, u_int8_t *density, u_int32_t *numblocks, 3576 int *buff_mode, u_int8_t *write_protect, u_int8_t *speed, 3577 int *comp_supported, int *comp_enabled, u_int32_t *comp_algorithm, 3578 sa_comp_t *tcs, struct scsi_control_data_prot_subpage *prot_page, 3579 int dp_size, int prot_changeable) 3580 { 3581 union ccb *ccb; 3582 void *mode_buffer; 3583 struct scsi_mode_header_6 *mode_hdr; 3584 struct scsi_mode_blk_desc *mode_blk; 3585 int mode_buffer_len; 3586 struct sa_softc *softc; 3587 u_int8_t cpage; 3588 int error; 3589 cam_status status; 3590 3591 softc = (struct sa_softc *)periph->softc; 3592 ccb = cam_periph_getccb(periph, 1); 3593 if (softc->quirks & SA_QUIRK_NO_CPAGE) 3594 cpage = SA_DEVICE_CONFIGURATION_PAGE; 3595 else 3596 cpage = SA_DATA_COMPRESSION_PAGE; 3597 3598 retry: 3599 mode_buffer_len = sizeof(*mode_hdr) + sizeof(*mode_blk); 3600 3601 if (params_to_get & SA_PARAM_COMPRESSION) { 3602 if (softc->quirks & SA_QUIRK_NOCOMP) { 3603 *comp_supported = FALSE; 3604 params_to_get &= ~SA_PARAM_COMPRESSION; 3605 } else 3606 mode_buffer_len += sizeof (sa_comp_t); 3607 } 3608 3609 /* XXX Fix M_NOWAIT */ 3610 mode_buffer = malloc(mode_buffer_len, M_SCSISA, M_NOWAIT | M_ZERO); 3611 if (mode_buffer == NULL) { 3612 xpt_release_ccb(ccb); 3613 return (ENOMEM); 3614 } 3615 mode_hdr = (struct scsi_mode_header_6 *)mode_buffer; 3616 mode_blk = (struct scsi_mode_blk_desc *)&mode_hdr[1]; 3617 3618 /* it is safe to retry this */ 3619 scsi_mode_sense(&ccb->csio, 5, NULL, MSG_SIMPLE_Q_TAG, FALSE, 3620 SMS_PAGE_CTRL_CURRENT, (params_to_get & SA_PARAM_COMPRESSION) ? 3621 cpage : SMS_VENDOR_SPECIFIC_PAGE, mode_buffer, mode_buffer_len, 3622 SSD_FULL_SIZE, SCSIOP_TIMEOUT); 3623 3624 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, 3625 softc->device_stats); 3626 3627 status = ccb->ccb_h.status & CAM_STATUS_MASK; 3628 3629 if (error == EINVAL && (params_to_get & SA_PARAM_COMPRESSION) != 0) { 3630 /* 3631 * Hmm. Let's see if we can try another page... 3632 * If we've already done that, give up on compression 3633 * for this device and remember this for the future 3634 * and attempt the request without asking for compression 3635 * info. 3636 */ 3637 if (cpage == SA_DATA_COMPRESSION_PAGE) { 3638 cpage = SA_DEVICE_CONFIGURATION_PAGE; 3639 goto retry; 3640 } 3641 softc->quirks |= SA_QUIRK_NOCOMP; 3642 free(mode_buffer, M_SCSISA); 3643 goto retry; 3644 } else if (status == CAM_SCSI_STATUS_ERROR) { 3645 /* Tell the user about the fatal error. */ 3646 scsi_sense_print(&ccb->csio); 3647 goto sagetparamsexit; 3648 } 3649 3650 /* 3651 * If the user only wants the compression information, and 3652 * the device doesn't send back the block descriptor, it's 3653 * no big deal. If the user wants more than just 3654 * compression, though, and the device doesn't pass back the 3655 * block descriptor, we need to send another mode sense to 3656 * get the block descriptor. 3657 */ 3658 if ((mode_hdr->blk_desc_len == 0) && 3659 (params_to_get & SA_PARAM_COMPRESSION) && 3660 (params_to_get & ~(SA_PARAM_COMPRESSION))) { 3661 3662 /* 3663 * Decrease the mode buffer length by the size of 3664 * the compression page, to make sure the data 3665 * there doesn't get overwritten. 3666 */ 3667 mode_buffer_len -= sizeof (sa_comp_t); 3668 3669 /* 3670 * Now move the compression page that we presumably 3671 * got back down the memory chunk a little bit so 3672 * it doesn't get spammed. 3673 */ 3674 bcopy(&mode_hdr[0], &mode_hdr[1], sizeof (sa_comp_t)); 3675 bzero(&mode_hdr[0], sizeof (mode_hdr[0])); 3676 3677 /* 3678 * Now, we issue another mode sense and just ask 3679 * for the block descriptor, etc. 3680 */ 3681 3682 scsi_mode_sense(&ccb->csio, 2, NULL, MSG_SIMPLE_Q_TAG, FALSE, 3683 SMS_PAGE_CTRL_CURRENT, SMS_VENDOR_SPECIFIC_PAGE, 3684 mode_buffer, mode_buffer_len, SSD_FULL_SIZE, 3685 SCSIOP_TIMEOUT); 3686 3687 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, 3688 softc->device_stats); 3689 3690 if (error != 0) 3691 goto sagetparamsexit; 3692 } 3693 3694 if (params_to_get & SA_PARAM_BLOCKSIZE) 3695 *blocksize = scsi_3btoul(mode_blk->blklen); 3696 3697 if (params_to_get & SA_PARAM_NUMBLOCKS) 3698 *numblocks = scsi_3btoul(mode_blk->nblocks); 3699 3700 if (params_to_get & SA_PARAM_BUFF_MODE) 3701 *buff_mode = mode_hdr->dev_spec & SMH_SA_BUF_MODE_MASK; 3702 3703 if (params_to_get & SA_PARAM_DENSITY) 3704 *density = mode_blk->density; 3705 3706 if (params_to_get & SA_PARAM_WP) 3707 *write_protect = (mode_hdr->dev_spec & SMH_SA_WP)? TRUE : FALSE; 3708 3709 if (params_to_get & SA_PARAM_SPEED) 3710 *speed = mode_hdr->dev_spec & SMH_SA_SPEED_MASK; 3711 3712 if (params_to_get & SA_PARAM_COMPRESSION) { 3713 sa_comp_t *ntcs = (sa_comp_t *) &mode_blk[1]; 3714 if (cpage == SA_DATA_COMPRESSION_PAGE) { 3715 struct scsi_data_compression_page *cp = &ntcs->dcomp; 3716 *comp_supported = 3717 (cp->dce_and_dcc & SA_DCP_DCC)? TRUE : FALSE; 3718 *comp_enabled = 3719 (cp->dce_and_dcc & SA_DCP_DCE)? TRUE : FALSE; 3720 *comp_algorithm = scsi_4btoul(cp->comp_algorithm); 3721 } else { 3722 struct scsi_dev_conf_page *cp = &ntcs->dconf; 3723 /* 3724 * We don't really know whether this device supports 3725 * Data Compression if the algorithm field is 3726 * zero. Just say we do. 3727 */ 3728 *comp_supported = TRUE; 3729 *comp_enabled = 3730 (cp->sel_comp_alg != SA_COMP_NONE)? TRUE : FALSE; 3731 *comp_algorithm = cp->sel_comp_alg; 3732 } 3733 if (tcs != NULL) 3734 bcopy(ntcs, tcs, sizeof (sa_comp_t)); 3735 } 3736 3737 if ((params_to_get & SA_PARAM_DENSITY_EXT) 3738 && (softc->scsi_rev >= SCSI_REV_SPC)) { 3739 int i; 3740 3741 for (i = 0; i < SA_DENSITY_TYPES; i++) { 3742 scsi_report_density_support(&ccb->csio, 3743 /*retries*/ 1, 3744 /*cbfcnp*/ NULL, 3745 /*tag_action*/ MSG_SIMPLE_Q_TAG, 3746 /*media*/ softc->density_type_bits[i] & SRDS_MEDIA, 3747 /*medium_type*/ softc->density_type_bits[i] & 3748 SRDS_MEDIUM_TYPE, 3749 /*data_ptr*/ softc->density_info[i], 3750 /*length*/ sizeof(softc->density_info[i]), 3751 /*sense_len*/ SSD_FULL_SIZE, 3752 /*timeout*/ REP_DENSITY_TIMEOUT); 3753 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, 3754 softc->device_stats); 3755 status = ccb->ccb_h.status & CAM_STATUS_MASK; 3756 3757 /* 3758 * Some tape drives won't support this command at 3759 * all, but hopefully we'll minimize that with the 3760 * check for SPC or greater support above. If they 3761 * don't support the default report (neither the 3762 * MEDIA or MEDIUM_TYPE bits set), then there is 3763 * really no point in continuing on to look for 3764 * other reports. 3765 */ 3766 if ((error != 0) 3767 || (status != CAM_REQ_CMP)) { 3768 error = 0; 3769 softc->density_info_valid[i] = 0; 3770 if (softc->density_type_bits[i] == 0) 3771 break; 3772 else 3773 continue; 3774 } 3775 softc->density_info_valid[i] = ccb->csio.dxfer_len - 3776 ccb->csio.resid; 3777 } 3778 } 3779 3780 /* 3781 * Get logical block protection parameters if the drive supports it. 3782 */ 3783 if ((params_to_get & SA_PARAM_LBP) 3784 && (softc->flags & SA_FLAG_PROTECT_SUPP)) { 3785 struct scsi_mode_header_10 *mode10_hdr; 3786 struct scsi_control_data_prot_subpage *dp_page; 3787 struct scsi_mode_sense_10 *cdb; 3788 struct sa_prot_state *prot; 3789 int dp_len, returned_len; 3790 3791 if (dp_size == 0) 3792 dp_size = sizeof(*dp_page); 3793 3794 dp_len = sizeof(*mode10_hdr) + dp_size; 3795 mode10_hdr = malloc(dp_len, M_SCSISA, M_NOWAIT | M_ZERO); 3796 if (mode10_hdr == NULL) { 3797 error = ENOMEM; 3798 goto sagetparamsexit; 3799 } 3800 3801 scsi_mode_sense_len(&ccb->csio, 3802 /*retries*/ 5, 3803 /*cbfcnp*/ NULL, 3804 /*tag_action*/ MSG_SIMPLE_Q_TAG, 3805 /*dbd*/ TRUE, 3806 /*page_code*/ (prot_changeable == 0) ? 3807 SMS_PAGE_CTRL_CURRENT : 3808 SMS_PAGE_CTRL_CHANGEABLE, 3809 /*page*/ SMS_CONTROL_MODE_PAGE, 3810 /*param_buf*/ (uint8_t *)mode10_hdr, 3811 /*param_len*/ dp_len, 3812 /*minimum_cmd_size*/ 10, 3813 /*sense_len*/ SSD_FULL_SIZE, 3814 /*timeout*/ SCSIOP_TIMEOUT); 3815 /* 3816 * XXX KDM we need to be able to set the subpage in the 3817 * fill function. 3818 */ 3819 cdb = (struct scsi_mode_sense_10 *)ccb->csio.cdb_io.cdb_bytes; 3820 cdb->subpage = SA_CTRL_DP_SUBPAGE_CODE; 3821 3822 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, 3823 softc->device_stats); 3824 if (error != 0) { 3825 free(mode10_hdr, M_SCSISA); 3826 goto sagetparamsexit; 3827 } 3828 3829 status = ccb->ccb_h.status & CAM_STATUS_MASK; 3830 if (status != CAM_REQ_CMP) { 3831 error = EINVAL; 3832 free(mode10_hdr, M_SCSISA); 3833 goto sagetparamsexit; 3834 } 3835 3836 /* 3837 * The returned data length at least has to be long enough 3838 * for us to look at length in the mode page header. 3839 */ 3840 returned_len = ccb->csio.dxfer_len - ccb->csio.resid; 3841 if (returned_len < sizeof(mode10_hdr->data_length)) { 3842 error = EINVAL; 3843 free(mode10_hdr, M_SCSISA); 3844 goto sagetparamsexit; 3845 } 3846 3847 returned_len = min(returned_len, 3848 sizeof(mode10_hdr->data_length) + 3849 scsi_2btoul(mode10_hdr->data_length)); 3850 3851 dp_page = (struct scsi_control_data_prot_subpage *) 3852 &mode10_hdr[1]; 3853 3854 /* 3855 * We also have to have enough data to include the prot_bits 3856 * in the subpage. 3857 */ 3858 if (returned_len < (sizeof(*mode10_hdr) + 3859 __offsetof(struct scsi_control_data_prot_subpage, prot_bits) 3860 + sizeof(dp_page->prot_bits))) { 3861 error = EINVAL; 3862 free(mode10_hdr, M_SCSISA); 3863 goto sagetparamsexit; 3864 } 3865 3866 prot = &softc->prot_info.cur_prot_state; 3867 prot->prot_method = dp_page->prot_method; 3868 prot->pi_length = dp_page->pi_length & 3869 SA_CTRL_DP_PI_LENGTH_MASK; 3870 prot->lbp_w = (dp_page->prot_bits & SA_CTRL_DP_LBP_W) ? 1 :0; 3871 prot->lbp_r = (dp_page->prot_bits & SA_CTRL_DP_LBP_R) ? 1 :0; 3872 prot->rbdp = (dp_page->prot_bits & SA_CTRL_DP_RBDP) ? 1 :0; 3873 prot->initialized = 1; 3874 3875 if (prot_page != NULL) 3876 bcopy(dp_page, prot_page, min(sizeof(*prot_page), 3877 sizeof(*dp_page))); 3878 3879 free(mode10_hdr, M_SCSISA); 3880 } 3881 3882 if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) { 3883 int idx; 3884 char *xyz = mode_buffer; 3885 xpt_print_path(periph->path); 3886 printf("Mode Sense Data="); 3887 for (idx = 0; idx < mode_buffer_len; idx++) 3888 printf(" 0x%02x", xyz[idx] & 0xff); 3889 printf("\n"); 3890 } 3891 3892 sagetparamsexit: 3893 3894 xpt_release_ccb(ccb); 3895 free(mode_buffer, M_SCSISA); 3896 return (error); 3897 } 3898 3899 /* 3900 * Set protection information to the pending protection information stored 3901 * in the softc. 3902 */ 3903 static int 3904 sasetprot(struct cam_periph *periph, struct sa_prot_state *new_prot) 3905 { 3906 struct sa_softc *softc; 3907 struct scsi_control_data_prot_subpage *dp_page, *dp_changeable; 3908 struct scsi_mode_header_10 *mode10_hdr, *mode10_changeable; 3909 union ccb *ccb; 3910 uint8_t current_speed; 3911 size_t dp_size, dp_page_length; 3912 int dp_len, buff_mode; 3913 int error; 3914 3915 softc = (struct sa_softc *)periph->softc; 3916 mode10_hdr = NULL; 3917 mode10_changeable = NULL; 3918 ccb = NULL; 3919 3920 /* 3921 * Start off with the size set to the actual length of the page 3922 * that we have defined. 3923 */ 3924 dp_size = sizeof(*dp_changeable); 3925 dp_page_length = dp_size - 3926 __offsetof(struct scsi_control_data_prot_subpage, prot_method); 3927 3928 retry_length: 3929 3930 dp_len = sizeof(*mode10_changeable) + dp_size; 3931 mode10_changeable = malloc(dp_len, M_SCSISA, M_NOWAIT | M_ZERO); 3932 if (mode10_changeable == NULL) { 3933 error = ENOMEM; 3934 goto bailout; 3935 } 3936 3937 dp_changeable = 3938 (struct scsi_control_data_prot_subpage *)&mode10_changeable[1]; 3939 3940 /* 3941 * First get the data protection page changeable parameters mask. 3942 * We need to know which parameters the drive supports changing. 3943 * We also need to know what the drive claims that its page length 3944 * is. The reason is that IBM drives in particular are very picky 3945 * about the page length. They want it (the length set in the 3946 * page structure itself) to be 28 bytes, and they want the 3947 * parameter list length specified in the mode select header to be 3948 * 40 bytes. So, to work with IBM drives as well as any other tape 3949 * drive, find out what the drive claims the page length is, and 3950 * make sure that we match that. 3951 */ 3952 error = sagetparams(periph, SA_PARAM_SPEED | SA_PARAM_LBP, 3953 NULL, NULL, NULL, &buff_mode, NULL, ¤t_speed, NULL, NULL, 3954 NULL, NULL, dp_changeable, dp_size, /*prot_changeable*/ 1); 3955 if (error != 0) 3956 goto bailout; 3957 3958 if (scsi_2btoul(dp_changeable->length) > dp_page_length) { 3959 dp_page_length = scsi_2btoul(dp_changeable->length); 3960 dp_size = dp_page_length + 3961 __offsetof(struct scsi_control_data_prot_subpage, 3962 prot_method); 3963 free(mode10_changeable, M_SCSISA); 3964 mode10_changeable = NULL; 3965 goto retry_length; 3966 } 3967 3968 mode10_hdr = malloc(dp_len, M_SCSISA, M_NOWAIT | M_ZERO); 3969 if (mode10_hdr == NULL) { 3970 error = ENOMEM; 3971 goto bailout; 3972 } 3973 3974 dp_page = (struct scsi_control_data_prot_subpage *)&mode10_hdr[1]; 3975 3976 /* 3977 * Now grab the actual current settings in the page. 3978 */ 3979 error = sagetparams(periph, SA_PARAM_SPEED | SA_PARAM_LBP, 3980 NULL, NULL, NULL, &buff_mode, NULL, ¤t_speed, NULL, NULL, 3981 NULL, NULL, dp_page, dp_size, /*prot_changeable*/ 0); 3982 if (error != 0) 3983 goto bailout; 3984 3985 /* These two fields need to be 0 for MODE SELECT */ 3986 scsi_ulto2b(0, mode10_hdr->data_length); 3987 mode10_hdr->medium_type = 0; 3988 /* We are not including a block descriptor */ 3989 scsi_ulto2b(0, mode10_hdr->blk_desc_len); 3990 3991 mode10_hdr->dev_spec = current_speed; 3992 /* if set, set single-initiator buffering mode */ 3993 if (softc->buffer_mode == SMH_SA_BUF_MODE_SIBUF) { 3994 mode10_hdr->dev_spec |= SMH_SA_BUF_MODE_SIBUF; 3995 } 3996 3997 /* 3998 * For each field, make sure that the drive allows changing it 3999 * before bringing in the user's setting. 4000 */ 4001 if (dp_changeable->prot_method != 0) 4002 dp_page->prot_method = new_prot->prot_method; 4003 4004 if (dp_changeable->pi_length & SA_CTRL_DP_PI_LENGTH_MASK) { 4005 dp_page->pi_length &= ~SA_CTRL_DP_PI_LENGTH_MASK; 4006 dp_page->pi_length |= (new_prot->pi_length & 4007 SA_CTRL_DP_PI_LENGTH_MASK); 4008 } 4009 if (dp_changeable->prot_bits & SA_CTRL_DP_LBP_W) { 4010 if (new_prot->lbp_w) 4011 dp_page->prot_bits |= SA_CTRL_DP_LBP_W; 4012 else 4013 dp_page->prot_bits &= ~SA_CTRL_DP_LBP_W; 4014 } 4015 4016 if (dp_changeable->prot_bits & SA_CTRL_DP_LBP_R) { 4017 if (new_prot->lbp_r) 4018 dp_page->prot_bits |= SA_CTRL_DP_LBP_R; 4019 else 4020 dp_page->prot_bits &= ~SA_CTRL_DP_LBP_R; 4021 } 4022 4023 if (dp_changeable->prot_bits & SA_CTRL_DP_RBDP) { 4024 if (new_prot->rbdp) 4025 dp_page->prot_bits |= SA_CTRL_DP_RBDP; 4026 else 4027 dp_page->prot_bits &= ~SA_CTRL_DP_RBDP; 4028 } 4029 4030 ccb = cam_periph_getccb(periph, 1); 4031 4032 scsi_mode_select_len(&ccb->csio, 4033 /*retries*/ 5, 4034 /*cbfcnp*/ NULL, 4035 /*tag_action*/ MSG_SIMPLE_Q_TAG, 4036 /*scsi_page_fmt*/ TRUE, 4037 /*save_pages*/ FALSE, 4038 /*param_buf*/ (uint8_t *)mode10_hdr, 4039 /*param_len*/ dp_len, 4040 /*minimum_cmd_size*/ 10, 4041 /*sense_len*/ SSD_FULL_SIZE, 4042 /*timeout*/ SCSIOP_TIMEOUT); 4043 4044 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats); 4045 if (error != 0) 4046 goto bailout; 4047 4048 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 4049 error = EINVAL; 4050 goto bailout; 4051 } 4052 4053 /* 4054 * The operation was successful. We could just copy the settings 4055 * the user requested, but just in case the drive ignored some of 4056 * our settings, let's ask for status again. 4057 */ 4058 error = sagetparams(periph, SA_PARAM_SPEED | SA_PARAM_LBP, 4059 NULL, NULL, NULL, &buff_mode, NULL, ¤t_speed, NULL, NULL, 4060 NULL, NULL, dp_page, dp_size, 0); 4061 4062 bailout: 4063 if (ccb != NULL) 4064 xpt_release_ccb(ccb); 4065 free(mode10_hdr, M_SCSISA); 4066 free(mode10_changeable, M_SCSISA); 4067 return (error); 4068 } 4069 4070 /* 4071 * The purpose of this function is to set one of four different parameters 4072 * for a tape drive: 4073 * - blocksize 4074 * - density 4075 * - compression / compression algorithm 4076 * - buffering mode 4077 * 4078 * The assumption is that this will be called from saioctl(), and therefore 4079 * from a process context. Thus the waiting malloc calls below. If that 4080 * assumption ever changes, the malloc calls should be changed to be 4081 * NOWAIT mallocs. 4082 * 4083 * Any or all of the four parameters may be set when this function is 4084 * called. It should handle setting more than one parameter at once. 4085 */ 4086 static int 4087 sasetparams(struct cam_periph *periph, sa_params params_to_set, 4088 u_int32_t blocksize, u_int8_t density, u_int32_t calg, 4089 u_int32_t sense_flags) 4090 { 4091 struct sa_softc *softc; 4092 u_int32_t current_blocksize; 4093 u_int32_t current_calg; 4094 u_int8_t current_density; 4095 u_int8_t current_speed; 4096 int comp_enabled, comp_supported; 4097 void *mode_buffer; 4098 int mode_buffer_len; 4099 struct scsi_mode_header_6 *mode_hdr; 4100 struct scsi_mode_blk_desc *mode_blk; 4101 sa_comp_t *ccomp, *cpage; 4102 int buff_mode; 4103 union ccb *ccb = NULL; 4104 int error; 4105 4106 softc = (struct sa_softc *)periph->softc; 4107 4108 ccomp = malloc(sizeof (sa_comp_t), M_SCSISA, M_NOWAIT); 4109 if (ccomp == NULL) 4110 return (ENOMEM); 4111 4112 /* 4113 * Since it doesn't make sense to set the number of blocks, or 4114 * write protection, we won't try to get the current value. We 4115 * always want to get the blocksize, so we can set it back to the 4116 * proper value. 4117 */ 4118 error = sagetparams(periph, 4119 params_to_set | SA_PARAM_BLOCKSIZE | SA_PARAM_SPEED, 4120 ¤t_blocksize, ¤t_density, NULL, &buff_mode, NULL, 4121 ¤t_speed, &comp_supported, &comp_enabled, 4122 ¤t_calg, ccomp, NULL, 0, 0); 4123 4124 if (error != 0) { 4125 free(ccomp, M_SCSISA); 4126 return (error); 4127 } 4128 4129 mode_buffer_len = sizeof(*mode_hdr) + sizeof(*mode_blk); 4130 if (params_to_set & SA_PARAM_COMPRESSION) 4131 mode_buffer_len += sizeof (sa_comp_t); 4132 4133 mode_buffer = malloc(mode_buffer_len, M_SCSISA, M_NOWAIT | M_ZERO); 4134 if (mode_buffer == NULL) { 4135 free(ccomp, M_SCSISA); 4136 return (ENOMEM); 4137 } 4138 4139 mode_hdr = (struct scsi_mode_header_6 *)mode_buffer; 4140 mode_blk = (struct scsi_mode_blk_desc *)&mode_hdr[1]; 4141 4142 ccb = cam_periph_getccb(periph, 1); 4143 4144 retry: 4145 4146 if (params_to_set & SA_PARAM_COMPRESSION) { 4147 if (mode_blk) { 4148 cpage = (sa_comp_t *)&mode_blk[1]; 4149 } else { 4150 cpage = (sa_comp_t *)&mode_hdr[1]; 4151 } 4152 bcopy(ccomp, cpage, sizeof (sa_comp_t)); 4153 cpage->hdr.pagecode &= ~0x80; 4154 } else 4155 cpage = NULL; 4156 4157 /* 4158 * If the caller wants us to set the blocksize, use the one they 4159 * pass in. Otherwise, use the blocksize we got back from the 4160 * mode select above. 4161 */ 4162 if (mode_blk) { 4163 if (params_to_set & SA_PARAM_BLOCKSIZE) 4164 scsi_ulto3b(blocksize, mode_blk->blklen); 4165 else 4166 scsi_ulto3b(current_blocksize, mode_blk->blklen); 4167 4168 /* 4169 * Set density if requested, else preserve old density. 4170 * SCSI_SAME_DENSITY only applies to SCSI-2 or better 4171 * devices, else density we've latched up in our softc. 4172 */ 4173 if (params_to_set & SA_PARAM_DENSITY) { 4174 mode_blk->density = density; 4175 } else if (softc->scsi_rev > SCSI_REV_CCS) { 4176 mode_blk->density = SCSI_SAME_DENSITY; 4177 } else { 4178 mode_blk->density = softc->media_density; 4179 } 4180 } 4181 4182 /* 4183 * For mode selects, these two fields must be zero. 4184 */ 4185 mode_hdr->data_length = 0; 4186 mode_hdr->medium_type = 0; 4187 4188 /* set the speed to the current value */ 4189 mode_hdr->dev_spec = current_speed; 4190 4191 /* if set, set single-initiator buffering mode */ 4192 if (softc->buffer_mode == SMH_SA_BUF_MODE_SIBUF) { 4193 mode_hdr->dev_spec |= SMH_SA_BUF_MODE_SIBUF; 4194 } 4195 4196 if (mode_blk) 4197 mode_hdr->blk_desc_len = sizeof(struct scsi_mode_blk_desc); 4198 else 4199 mode_hdr->blk_desc_len = 0; 4200 4201 /* 4202 * First, if the user wants us to set the compression algorithm or 4203 * just turn compression on, check to make sure that this drive 4204 * supports compression. 4205 */ 4206 if (params_to_set & SA_PARAM_COMPRESSION) { 4207 /* 4208 * If the compression algorithm is 0, disable compression. 4209 * If the compression algorithm is non-zero, enable 4210 * compression and set the compression type to the 4211 * specified compression algorithm, unless the algorithm is 4212 * MT_COMP_ENABLE. In that case, we look at the 4213 * compression algorithm that is currently set and if it is 4214 * non-zero, we leave it as-is. If it is zero, and we have 4215 * saved a compression algorithm from a time when 4216 * compression was enabled before, set the compression to 4217 * the saved value. 4218 */ 4219 switch (ccomp->hdr.pagecode & ~0x80) { 4220 case SA_DEVICE_CONFIGURATION_PAGE: 4221 { 4222 struct scsi_dev_conf_page *dcp = &cpage->dconf; 4223 if (calg == 0) { 4224 dcp->sel_comp_alg = SA_COMP_NONE; 4225 break; 4226 } 4227 if (calg != MT_COMP_ENABLE) { 4228 dcp->sel_comp_alg = calg; 4229 } else if (dcp->sel_comp_alg == SA_COMP_NONE && 4230 softc->saved_comp_algorithm != 0) { 4231 dcp->sel_comp_alg = softc->saved_comp_algorithm; 4232 } 4233 break; 4234 } 4235 case SA_DATA_COMPRESSION_PAGE: 4236 if (ccomp->dcomp.dce_and_dcc & SA_DCP_DCC) { 4237 struct scsi_data_compression_page *dcp = &cpage->dcomp; 4238 if (calg == 0) { 4239 /* 4240 * Disable compression, but leave the 4241 * decompression and the capability bit 4242 * alone. 4243 */ 4244 dcp->dce_and_dcc = SA_DCP_DCC; 4245 dcp->dde_and_red |= SA_DCP_DDE; 4246 break; 4247 } 4248 /* enable compression && decompression */ 4249 dcp->dce_and_dcc = SA_DCP_DCE | SA_DCP_DCC; 4250 dcp->dde_and_red |= SA_DCP_DDE; 4251 /* 4252 * If there, use compression algorithm from caller. 4253 * Otherwise, if there's a saved compression algorithm 4254 * and there is no current algorithm, use the saved 4255 * algorithm. Else parrot back what we got and hope 4256 * for the best. 4257 */ 4258 if (calg != MT_COMP_ENABLE) { 4259 scsi_ulto4b(calg, dcp->comp_algorithm); 4260 scsi_ulto4b(calg, dcp->decomp_algorithm); 4261 } else if (scsi_4btoul(dcp->comp_algorithm) == 0 && 4262 softc->saved_comp_algorithm != 0) { 4263 scsi_ulto4b(softc->saved_comp_algorithm, 4264 dcp->comp_algorithm); 4265 scsi_ulto4b(softc->saved_comp_algorithm, 4266 dcp->decomp_algorithm); 4267 } 4268 break; 4269 } 4270 /* 4271 * Compression does not appear to be supported- 4272 * at least via the DATA COMPRESSION page. It 4273 * would be too much to ask us to believe that 4274 * the page itself is supported, but incorrectly 4275 * reports an ability to manipulate data compression, 4276 * so we'll assume that this device doesn't support 4277 * compression. We can just fall through for that. 4278 */ 4279 /* FALLTHROUGH */ 4280 default: 4281 /* 4282 * The drive doesn't seem to support compression, 4283 * so turn off the set compression bit. 4284 */ 4285 params_to_set &= ~SA_PARAM_COMPRESSION; 4286 xpt_print(periph->path, 4287 "device does not seem to support compression\n"); 4288 4289 /* 4290 * If that was the only thing the user wanted us to set, 4291 * clean up allocated resources and return with 4292 * 'operation not supported'. 4293 */ 4294 if (params_to_set == SA_PARAM_NONE) { 4295 free(mode_buffer, M_SCSISA); 4296 xpt_release_ccb(ccb); 4297 return (ENODEV); 4298 } 4299 4300 /* 4301 * That wasn't the only thing the user wanted us to set. 4302 * So, decrease the stated mode buffer length by the 4303 * size of the compression mode page. 4304 */ 4305 mode_buffer_len -= sizeof(sa_comp_t); 4306 } 4307 } 4308 4309 /* It is safe to retry this operation */ 4310 scsi_mode_select(&ccb->csio, 5, NULL, MSG_SIMPLE_Q_TAG, 4311 (params_to_set & SA_PARAM_COMPRESSION)? TRUE : FALSE, 4312 FALSE, mode_buffer, mode_buffer_len, SSD_FULL_SIZE, SCSIOP_TIMEOUT); 4313 4314 error = cam_periph_runccb(ccb, saerror, 0, 4315 sense_flags, softc->device_stats); 4316 4317 if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) { 4318 int idx; 4319 char *xyz = mode_buffer; 4320 xpt_print_path(periph->path); 4321 printf("Err%d, Mode Select Data=", error); 4322 for (idx = 0; idx < mode_buffer_len; idx++) 4323 printf(" 0x%02x", xyz[idx] & 0xff); 4324 printf("\n"); 4325 } 4326 4327 4328 if (error) { 4329 /* 4330 * If we can, try without setting density/blocksize. 4331 */ 4332 if (mode_blk) { 4333 if ((params_to_set & 4334 (SA_PARAM_DENSITY|SA_PARAM_BLOCKSIZE)) == 0) { 4335 mode_blk = NULL; 4336 goto retry; 4337 } 4338 } else { 4339 mode_blk = (struct scsi_mode_blk_desc *)&mode_hdr[1]; 4340 cpage = (sa_comp_t *)&mode_blk[1]; 4341 } 4342 4343 /* 4344 * If we were setting the blocksize, and that failed, we 4345 * want to set it to its original value. If we weren't 4346 * setting the blocksize, we don't want to change it. 4347 */ 4348 scsi_ulto3b(current_blocksize, mode_blk->blklen); 4349 4350 /* 4351 * Set density if requested, else preserve old density. 4352 * SCSI_SAME_DENSITY only applies to SCSI-2 or better 4353 * devices, else density we've latched up in our softc. 4354 */ 4355 if (params_to_set & SA_PARAM_DENSITY) { 4356 mode_blk->density = current_density; 4357 } else if (softc->scsi_rev > SCSI_REV_CCS) { 4358 mode_blk->density = SCSI_SAME_DENSITY; 4359 } else { 4360 mode_blk->density = softc->media_density; 4361 } 4362 4363 if (params_to_set & SA_PARAM_COMPRESSION) 4364 bcopy(ccomp, cpage, sizeof (sa_comp_t)); 4365 4366 /* 4367 * The retry count is the only CCB field that might have been 4368 * changed that we care about, so reset it back to 1. 4369 */ 4370 ccb->ccb_h.retry_count = 1; 4371 cam_periph_runccb(ccb, saerror, 0, sense_flags, 4372 softc->device_stats); 4373 } 4374 4375 xpt_release_ccb(ccb); 4376 4377 if (ccomp != NULL) 4378 free(ccomp, M_SCSISA); 4379 4380 if (params_to_set & SA_PARAM_COMPRESSION) { 4381 if (error) { 4382 softc->flags &= ~SA_FLAG_COMP_ENABLED; 4383 /* 4384 * Even if we get an error setting compression, 4385 * do not say that we don't support it. We could 4386 * have been wrong, or it may be media specific. 4387 * softc->flags &= ~SA_FLAG_COMP_SUPP; 4388 */ 4389 softc->saved_comp_algorithm = softc->comp_algorithm; 4390 softc->comp_algorithm = 0; 4391 } else { 4392 softc->flags |= SA_FLAG_COMP_ENABLED; 4393 softc->comp_algorithm = calg; 4394 } 4395 } 4396 4397 free(mode_buffer, M_SCSISA); 4398 return (error); 4399 } 4400 4401 static int 4402 saextget(struct cdev *dev, struct cam_periph *periph, struct sbuf *sb, 4403 struct mtextget *g) 4404 { 4405 int indent, error; 4406 char tmpstr[80]; 4407 struct sa_softc *softc; 4408 int tmpint; 4409 uint32_t maxio_tmp; 4410 struct ccb_getdev cgd; 4411 4412 softc = (struct sa_softc *)periph->softc; 4413 4414 error = 0; 4415 4416 error = sagetparams_common(dev, periph); 4417 if (error) 4418 goto extget_bailout; 4419 if (!SA_IS_CTRL(dev) && !softc->open_pending_mount) 4420 sagetpos(periph); 4421 4422 indent = 0; 4423 SASBADDNODE(sb, indent, mtextget); 4424 /* 4425 * Basic CAM peripheral information. 4426 */ 4427 SASBADDVARSTR(sb, indent, periph->periph_name, %s, periph_name, 4428 strlen(periph->periph_name) + 1); 4429 SASBADDUINT(sb, indent, periph->unit_number, %u, unit_number); 4430 xpt_setup_ccb(&cgd.ccb_h, 4431 periph->path, 4432 CAM_PRIORITY_NORMAL); 4433 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 4434 xpt_action((union ccb *)&cgd); 4435 if ((cgd.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 4436 g->status = MT_EXT_GET_ERROR; 4437 snprintf(g->error_str, sizeof(g->error_str), 4438 "Error %#x returned for XPT_GDEV_TYPE CCB", 4439 cgd.ccb_h.status); 4440 goto extget_bailout; 4441 } 4442 4443 cam_strvis(tmpstr, cgd.inq_data.vendor, 4444 sizeof(cgd.inq_data.vendor), sizeof(tmpstr)); 4445 SASBADDVARSTRDESC(sb, indent, tmpstr, %s, vendor, 4446 sizeof(cgd.inq_data.vendor) + 1, "SCSI Vendor ID"); 4447 4448 cam_strvis(tmpstr, cgd.inq_data.product, 4449 sizeof(cgd.inq_data.product), sizeof(tmpstr)); 4450 SASBADDVARSTRDESC(sb, indent, tmpstr, %s, product, 4451 sizeof(cgd.inq_data.product) + 1, "SCSI Product ID"); 4452 4453 cam_strvis(tmpstr, cgd.inq_data.revision, 4454 sizeof(cgd.inq_data.revision), sizeof(tmpstr)); 4455 SASBADDVARSTRDESC(sb, indent, tmpstr, %s, revision, 4456 sizeof(cgd.inq_data.revision) + 1, "SCSI Revision"); 4457 4458 if (cgd.serial_num_len > 0) { 4459 char *tmpstr2; 4460 size_t ts2_len; 4461 int ts2_malloc; 4462 4463 ts2_len = 0; 4464 4465 if (cgd.serial_num_len > sizeof(tmpstr)) { 4466 ts2_len = cgd.serial_num_len + 1; 4467 ts2_malloc = 1; 4468 tmpstr2 = malloc(ts2_len, M_SCSISA, M_NOWAIT | M_ZERO); 4469 /* 4470 * The 80 characters allocated on the stack above 4471 * will handle the vast majority of serial numbers. 4472 * If we run into one that is larger than that, and 4473 * we can't malloc the length without blocking, 4474 * bail out with an out of memory error. 4475 */ 4476 if (tmpstr2 == NULL) { 4477 error = ENOMEM; 4478 goto extget_bailout; 4479 } 4480 } else { 4481 ts2_len = sizeof(tmpstr); 4482 ts2_malloc = 0; 4483 tmpstr2 = tmpstr; 4484 } 4485 4486 cam_strvis(tmpstr2, cgd.serial_num, cgd.serial_num_len, 4487 ts2_len); 4488 4489 SASBADDVARSTRDESC(sb, indent, tmpstr2, %s, serial_num, 4490 (ssize_t)cgd.serial_num_len + 1, "Serial Number"); 4491 if (ts2_malloc != 0) 4492 free(tmpstr2, M_SCSISA); 4493 } else { 4494 /* 4495 * We return a serial_num element in any case, but it will 4496 * be empty if the device has no serial number. 4497 */ 4498 tmpstr[0] = '\0'; 4499 SASBADDVARSTRDESC(sb, indent, tmpstr, %s, serial_num, 4500 (ssize_t)0, "Serial Number"); 4501 } 4502 4503 SASBADDUINTDESC(sb, indent, softc->maxio, %u, maxio, 4504 "Maximum I/O size allowed by driver and controller"); 4505 4506 SASBADDUINTDESC(sb, indent, softc->cpi_maxio, %u, cpi_maxio, 4507 "Maximum I/O size reported by controller"); 4508 4509 SASBADDUINTDESC(sb, indent, softc->max_blk, %u, max_blk, 4510 "Maximum block size supported by tape drive and media"); 4511 4512 SASBADDUINTDESC(sb, indent, softc->min_blk, %u, min_blk, 4513 "Minimum block size supported by tape drive and media"); 4514 4515 SASBADDUINTDESC(sb, indent, softc->blk_gran, %u, blk_gran, 4516 "Block granularity supported by tape drive and media"); 4517 4518 maxio_tmp = min(softc->max_blk, softc->maxio); 4519 4520 SASBADDUINTDESC(sb, indent, maxio_tmp, %u, max_effective_iosize, 4521 "Maximum possible I/O size"); 4522 4523 SASBADDINTDESC(sb, indent, softc->flags & SA_FLAG_FIXED ? 1 : 0, %d, 4524 fixed_mode, "Set to 1 for fixed block mode, 0 for variable block"); 4525 4526 /* 4527 * XXX KDM include SIM, bus, target, LUN? 4528 */ 4529 if (softc->flags & SA_FLAG_COMP_UNSUPP) 4530 tmpint = 0; 4531 else 4532 tmpint = 1; 4533 SASBADDINTDESC(sb, indent, tmpint, %d, compression_supported, 4534 "Set to 1 if compression is supported, 0 if not"); 4535 if (softc->flags & SA_FLAG_COMP_ENABLED) 4536 tmpint = 1; 4537 else 4538 tmpint = 0; 4539 SASBADDINTDESC(sb, indent, tmpint, %d, compression_enabled, 4540 "Set to 1 if compression is enabled, 0 if not"); 4541 SASBADDUINTDESC(sb, indent, softc->comp_algorithm, %u, 4542 compression_algorithm, "Numeric compression algorithm"); 4543 4544 safillprot(softc, &indent, sb); 4545 4546 SASBADDUINTDESC(sb, indent, softc->media_blksize, %u, 4547 media_blocksize, "Block size reported by drive or set by user"); 4548 SASBADDINTDESC(sb, indent, (intmax_t)softc->fileno, %jd, 4549 calculated_fileno, "Calculated file number, -1 if unknown"); 4550 SASBADDINTDESC(sb, indent, (intmax_t)softc->blkno, %jd, 4551 calculated_rel_blkno, "Calculated block number relative to file, " 4552 "set to -1 if unknown"); 4553 SASBADDINTDESC(sb, indent, (intmax_t)softc->rep_fileno, %jd, 4554 reported_fileno, "File number reported by drive, -1 if unknown"); 4555 SASBADDINTDESC(sb, indent, (intmax_t)softc->rep_blkno, %jd, 4556 reported_blkno, "Block number relative to BOP/BOT reported by " 4557 "drive, -1 if unknown"); 4558 SASBADDINTDESC(sb, indent, (intmax_t)softc->partition, %jd, 4559 partition, "Current partition number, 0 is the default"); 4560 SASBADDINTDESC(sb, indent, softc->bop, %d, bop, 4561 "Set to 1 if drive is at the beginning of partition/tape, 0 if " 4562 "not, -1 if unknown"); 4563 SASBADDINTDESC(sb, indent, softc->eop, %d, eop, 4564 "Set to 1 if drive is past early warning, 0 if not, -1 if unknown"); 4565 SASBADDINTDESC(sb, indent, softc->bpew, %d, bpew, 4566 "Set to 1 if drive is past programmable early warning, 0 if not, " 4567 "-1 if unknown"); 4568 SASBADDINTDESC(sb, indent, (intmax_t)softc->last_io_resid, %jd, 4569 residual, "Residual for the last I/O"); 4570 /* 4571 * XXX KDM should we send a string with the current driver 4572 * status already decoded instead of a numeric value? 4573 */ 4574 SASBADDINTDESC(sb, indent, softc->dsreg, %d, dsreg, 4575 "Current state of the driver"); 4576 4577 safilldensitysb(softc, &indent, sb); 4578 4579 SASBENDNODE(sb, indent, mtextget); 4580 4581 extget_bailout: 4582 4583 return (error); 4584 } 4585 4586 static int 4587 saparamget(struct sa_softc *softc, struct sbuf *sb) 4588 { 4589 int indent; 4590 4591 indent = 0; 4592 SASBADDNODE(sb, indent, mtparamget); 4593 SASBADDINTDESC(sb, indent, softc->sili, %d, sili, 4594 "Suppress an error on underlength variable reads"); 4595 SASBADDINTDESC(sb, indent, softc->eot_warn, %d, eot_warn, 4596 "Return an error to warn that end of tape is approaching"); 4597 safillprot(softc, &indent, sb); 4598 SASBENDNODE(sb, indent, mtparamget); 4599 4600 return (0); 4601 } 4602 4603 static void 4604 saprevent(struct cam_periph *periph, int action) 4605 { 4606 struct sa_softc *softc; 4607 union ccb *ccb; 4608 int error, sf; 4609 4610 softc = (struct sa_softc *)periph->softc; 4611 4612 if ((action == PR_ALLOW) && (softc->flags & SA_FLAG_TAPE_LOCKED) == 0) 4613 return; 4614 if ((action == PR_PREVENT) && (softc->flags & SA_FLAG_TAPE_LOCKED) != 0) 4615 return; 4616 4617 /* 4618 * We can be quiet about illegal requests. 4619 */ 4620 if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) { 4621 sf = 0; 4622 } else 4623 sf = SF_QUIET_IR; 4624 4625 ccb = cam_periph_getccb(periph, 1); 4626 4627 /* It is safe to retry this operation */ 4628 scsi_prevent(&ccb->csio, 5, NULL, MSG_SIMPLE_Q_TAG, action, 4629 SSD_FULL_SIZE, SCSIOP_TIMEOUT); 4630 4631 error = cam_periph_runccb(ccb, saerror, 0, sf, softc->device_stats); 4632 if (error == 0) { 4633 if (action == PR_ALLOW) 4634 softc->flags &= ~SA_FLAG_TAPE_LOCKED; 4635 else 4636 softc->flags |= SA_FLAG_TAPE_LOCKED; 4637 } 4638 4639 xpt_release_ccb(ccb); 4640 } 4641 4642 static int 4643 sarewind(struct cam_periph *periph) 4644 { 4645 union ccb *ccb; 4646 struct sa_softc *softc; 4647 int error; 4648 4649 softc = (struct sa_softc *)periph->softc; 4650 4651 ccb = cam_periph_getccb(periph, 1); 4652 4653 /* It is safe to retry this operation */ 4654 scsi_rewind(&ccb->csio, 2, NULL, MSG_SIMPLE_Q_TAG, FALSE, 4655 SSD_FULL_SIZE, REWIND_TIMEOUT); 4656 4657 softc->dsreg = MTIO_DSREG_REW; 4658 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats); 4659 softc->dsreg = MTIO_DSREG_REST; 4660 4661 xpt_release_ccb(ccb); 4662 if (error == 0) { 4663 softc->partition = softc->fileno = softc->blkno = (daddr_t) 0; 4664 softc->rep_fileno = softc->rep_blkno = (daddr_t) 0; 4665 } else { 4666 softc->fileno = softc->blkno = (daddr_t) -1; 4667 softc->partition = (daddr_t) -1; 4668 softc->rep_fileno = softc->rep_blkno = (daddr_t) -1; 4669 } 4670 return (error); 4671 } 4672 4673 static int 4674 saspace(struct cam_periph *periph, int count, scsi_space_code code) 4675 { 4676 union ccb *ccb; 4677 struct sa_softc *softc; 4678 int error; 4679 4680 softc = (struct sa_softc *)periph->softc; 4681 4682 ccb = cam_periph_getccb(periph, 1); 4683 4684 /* This cannot be retried */ 4685 4686 scsi_space(&ccb->csio, 0, NULL, MSG_SIMPLE_Q_TAG, code, count, 4687 SSD_FULL_SIZE, SPACE_TIMEOUT); 4688 4689 /* 4690 * Clear residual because we will be using it. 4691 */ 4692 softc->last_ctl_resid = 0; 4693 4694 softc->dsreg = (count < 0)? MTIO_DSREG_REV : MTIO_DSREG_FWD; 4695 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats); 4696 softc->dsreg = MTIO_DSREG_REST; 4697 4698 xpt_release_ccb(ccb); 4699 4700 /* 4701 * If a spacing operation has failed, we need to invalidate 4702 * this mount. 4703 * 4704 * If the spacing operation was setmarks or to end of recorded data, 4705 * we no longer know our relative position. 4706 * 4707 * If the spacing operations was spacing files in reverse, we 4708 * take account of the residual, but still check against less 4709 * than zero- if we've gone negative, we must have hit BOT. 4710 * 4711 * If the spacing operations was spacing records in reverse and 4712 * we have a residual, we've either hit BOT or hit a filemark. 4713 * In the former case, we know our new record number (0). In 4714 * the latter case, we have absolutely no idea what the real 4715 * record number is- we've stopped between the end of the last 4716 * record in the previous file and the filemark that stopped 4717 * our spacing backwards. 4718 */ 4719 if (error) { 4720 softc->fileno = softc->blkno = (daddr_t) -1; 4721 softc->rep_blkno = softc->partition = (daddr_t) -1; 4722 softc->rep_fileno = (daddr_t) -1; 4723 } else if (code == SS_SETMARKS || code == SS_EOD) { 4724 softc->fileno = softc->blkno = (daddr_t) -1; 4725 } else if (code == SS_FILEMARKS && softc->fileno != (daddr_t) -1) { 4726 softc->fileno += (count - softc->last_ctl_resid); 4727 if (softc->fileno < 0) /* we must of hit BOT */ 4728 softc->fileno = 0; 4729 softc->blkno = 0; 4730 } else if (code == SS_BLOCKS && softc->blkno != (daddr_t) -1) { 4731 softc->blkno += (count - softc->last_ctl_resid); 4732 if (count < 0) { 4733 if (softc->last_ctl_resid || softc->blkno < 0) { 4734 if (softc->fileno == 0) { 4735 softc->blkno = 0; 4736 } else { 4737 softc->blkno = (daddr_t) -1; 4738 } 4739 } 4740 } 4741 } 4742 if (error == 0) 4743 sagetpos(periph); 4744 4745 return (error); 4746 } 4747 4748 static int 4749 sawritefilemarks(struct cam_periph *periph, int nmarks, int setmarks, int immed) 4750 { 4751 union ccb *ccb; 4752 struct sa_softc *softc; 4753 int error, nwm = 0; 4754 4755 softc = (struct sa_softc *)periph->softc; 4756 if (softc->open_rdonly) 4757 return (EBADF); 4758 4759 ccb = cam_periph_getccb(periph, 1); 4760 /* 4761 * Clear residual because we will be using it. 4762 */ 4763 softc->last_ctl_resid = 0; 4764 4765 softc->dsreg = MTIO_DSREG_FMK; 4766 /* this *must* not be retried */ 4767 scsi_write_filemarks(&ccb->csio, 0, NULL, MSG_SIMPLE_Q_TAG, 4768 immed, setmarks, nmarks, SSD_FULL_SIZE, IO_TIMEOUT); 4769 softc->dsreg = MTIO_DSREG_REST; 4770 4771 4772 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats); 4773 4774 if (error == 0 && nmarks) { 4775 struct sa_softc *softc = (struct sa_softc *)periph->softc; 4776 nwm = nmarks - softc->last_ctl_resid; 4777 softc->filemarks += nwm; 4778 } 4779 4780 xpt_release_ccb(ccb); 4781 4782 /* 4783 * Update relative positions (if we're doing that). 4784 */ 4785 if (error) { 4786 softc->fileno = softc->blkno = softc->partition = (daddr_t) -1; 4787 } else if (softc->fileno != (daddr_t) -1) { 4788 softc->fileno += nwm; 4789 softc->blkno = 0; 4790 } 4791 4792 /* 4793 * Ask the tape drive for position information. 4794 */ 4795 sagetpos(periph); 4796 4797 /* 4798 * If we got valid position information, since we just wrote a file 4799 * mark, we know we're at the file mark and block 0 after that 4800 * filemark. 4801 */ 4802 if (softc->rep_fileno != (daddr_t) -1) { 4803 softc->fileno = softc->rep_fileno; 4804 softc->blkno = 0; 4805 } 4806 4807 return (error); 4808 } 4809 4810 static int 4811 sagetpos(struct cam_periph *periph) 4812 { 4813 union ccb *ccb; 4814 struct scsi_tape_position_long_data long_pos; 4815 struct sa_softc *softc = (struct sa_softc *)periph->softc; 4816 int error; 4817 4818 if (softc->quirks & SA_QUIRK_NO_LONG_POS) { 4819 softc->rep_fileno = (daddr_t) -1; 4820 softc->rep_blkno = (daddr_t) -1; 4821 softc->bop = softc->eop = softc->bpew = -1; 4822 return (EOPNOTSUPP); 4823 } 4824 4825 bzero(&long_pos, sizeof(long_pos)); 4826 4827 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL); 4828 scsi_read_position_10(&ccb->csio, 4829 /*retries*/ 1, 4830 /*cbfcnp*/ NULL, 4831 /*tag_action*/ MSG_SIMPLE_Q_TAG, 4832 /*service_action*/ SA_RPOS_LONG_FORM, 4833 /*data_ptr*/ (uint8_t *)&long_pos, 4834 /*length*/ sizeof(long_pos), 4835 /*sense_len*/ SSD_FULL_SIZE, 4836 /*timeout*/ SCSIOP_TIMEOUT); 4837 4838 softc->dsreg = MTIO_DSREG_RBSY; 4839 error = cam_periph_runccb(ccb, saerror, 0, SF_QUIET_IR, 4840 softc->device_stats); 4841 softc->dsreg = MTIO_DSREG_REST; 4842 4843 if (error == 0) { 4844 if (long_pos.flags & SA_RPOS_LONG_MPU) { 4845 /* 4846 * If the drive doesn't know what file mark it is 4847 * on, our calculated filemark isn't going to be 4848 * accurate either. 4849 */ 4850 softc->fileno = (daddr_t) -1; 4851 softc->rep_fileno = (daddr_t) -1; 4852 } else { 4853 softc->fileno = softc->rep_fileno = 4854 scsi_8btou64(long_pos.logical_file_num); 4855 } 4856 4857 if (long_pos.flags & SA_RPOS_LONG_LONU) { 4858 softc->partition = (daddr_t) -1; 4859 softc->rep_blkno = (daddr_t) -1; 4860 /* 4861 * If the tape drive doesn't know its block 4862 * position, we can't claim to know it either. 4863 */ 4864 softc->blkno = (daddr_t) -1; 4865 } else { 4866 softc->partition = scsi_4btoul(long_pos.partition); 4867 softc->rep_blkno = 4868 scsi_8btou64(long_pos.logical_object_num); 4869 } 4870 if (long_pos.flags & SA_RPOS_LONG_BOP) 4871 softc->bop = 1; 4872 else 4873 softc->bop = 0; 4874 4875 if (long_pos.flags & SA_RPOS_LONG_EOP) 4876 softc->eop = 1; 4877 else 4878 softc->eop = 0; 4879 4880 if ((long_pos.flags & SA_RPOS_LONG_BPEW) 4881 || (softc->set_pews_status != 0)) { 4882 softc->bpew = 1; 4883 if (softc->set_pews_status > 0) 4884 softc->set_pews_status--; 4885 } else 4886 softc->bpew = 0; 4887 } else if (error == EINVAL) { 4888 /* 4889 * If this drive returned an invalid-request type error, 4890 * then it likely doesn't support the long form report. 4891 */ 4892 softc->quirks |= SA_QUIRK_NO_LONG_POS; 4893 } 4894 4895 if (error != 0) { 4896 softc->rep_fileno = softc->rep_blkno = (daddr_t) -1; 4897 softc->partition = (daddr_t) -1; 4898 softc->bop = softc->eop = softc->bpew = -1; 4899 } 4900 4901 xpt_release_ccb(ccb); 4902 4903 return (error); 4904 } 4905 4906 static int 4907 sardpos(struct cam_periph *periph, int hard, u_int32_t *blkptr) 4908 { 4909 struct scsi_tape_position_data loc; 4910 union ccb *ccb; 4911 struct sa_softc *softc = (struct sa_softc *)periph->softc; 4912 int error; 4913 4914 /* 4915 * We try and flush any buffered writes here if we were writing 4916 * and we're trying to get hardware block position. It eats 4917 * up performance substantially, but I'm wary of drive firmware. 4918 * 4919 * I think that *logical* block position is probably okay- 4920 * but hardware block position might have to wait for data 4921 * to hit media to be valid. Caveat Emptor. 4922 */ 4923 4924 if (hard && (softc->flags & SA_FLAG_TAPE_WRITTEN)) { 4925 error = sawritefilemarks(periph, 0, 0, 0); 4926 if (error && error != EACCES) 4927 return (error); 4928 } 4929 4930 ccb = cam_periph_getccb(periph, 1); 4931 scsi_read_position(&ccb->csio, 1, NULL, MSG_SIMPLE_Q_TAG, 4932 hard, &loc, SSD_FULL_SIZE, SCSIOP_TIMEOUT); 4933 softc->dsreg = MTIO_DSREG_RBSY; 4934 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats); 4935 softc->dsreg = MTIO_DSREG_REST; 4936 4937 if (error == 0) { 4938 if (loc.flags & SA_RPOS_UNCERTAIN) { 4939 error = EINVAL; /* nothing is certain */ 4940 } else { 4941 *blkptr = scsi_4btoul(loc.firstblk); 4942 } 4943 } 4944 4945 xpt_release_ccb(ccb); 4946 return (error); 4947 } 4948 4949 static int 4950 sasetpos(struct cam_periph *periph, int hard, struct mtlocate *locate_info) 4951 { 4952 union ccb *ccb; 4953 struct sa_softc *softc; 4954 int locate16; 4955 int immed, cp; 4956 int error; 4957 4958 /* 4959 * We used to try and flush any buffered writes here. 4960 * Now we push this onto user applications to either 4961 * flush the pending writes themselves (via a zero count 4962 * WRITE FILEMARKS command) or they can trust their tape 4963 * drive to do this correctly for them. 4964 */ 4965 4966 softc = (struct sa_softc *)periph->softc; 4967 ccb = cam_periph_getccb(periph, 1); 4968 4969 cp = locate_info->flags & MT_LOCATE_FLAG_CHANGE_PART ? 1 : 0; 4970 immed = locate_info->flags & MT_LOCATE_FLAG_IMMED ? 1 : 0; 4971 4972 /* 4973 * Determine whether we have to use LOCATE or LOCATE16. The hard 4974 * bit is only possible with LOCATE, but the new ioctls do not 4975 * allow setting that bit. So we can't get into the situation of 4976 * having the hard bit set with a block address that is larger than 4977 * 32-bits. 4978 */ 4979 if (hard != 0) 4980 locate16 = 0; 4981 else if ((locate_info->dest_type != MT_LOCATE_DEST_OBJECT) 4982 || (locate_info->block_address_mode != MT_LOCATE_BAM_IMPLICIT) 4983 || (locate_info->logical_id > SA_SPOS_MAX_BLK)) 4984 locate16 = 1; 4985 else 4986 locate16 = 0; 4987 4988 if (locate16 != 0) { 4989 scsi_locate_16(&ccb->csio, 4990 /*retries*/ 1, 4991 /*cbfcnp*/ NULL, 4992 /*tag_action*/ MSG_SIMPLE_Q_TAG, 4993 /*immed*/ immed, 4994 /*cp*/ cp, 4995 /*dest_type*/ locate_info->dest_type, 4996 /*bam*/ locate_info->block_address_mode, 4997 /*partition*/ locate_info->partition, 4998 /*logical_id*/ locate_info->logical_id, 4999 /*sense_len*/ SSD_FULL_SIZE, 5000 /*timeout*/ SPACE_TIMEOUT); 5001 } else { 5002 scsi_locate_10(&ccb->csio, 5003 /*retries*/ 1, 5004 /*cbfcnp*/ NULL, 5005 /*tag_action*/ MSG_SIMPLE_Q_TAG, 5006 /*immed*/ immed, 5007 /*cp*/ cp, 5008 /*hard*/ hard, 5009 /*partition*/ locate_info->partition, 5010 /*block_address*/ locate_info->logical_id, 5011 /*sense_len*/ SSD_FULL_SIZE, 5012 /*timeout*/ SPACE_TIMEOUT); 5013 } 5014 5015 softc->dsreg = MTIO_DSREG_POS; 5016 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats); 5017 softc->dsreg = MTIO_DSREG_REST; 5018 xpt_release_ccb(ccb); 5019 5020 /* 5021 * We assume the calculated file and block numbers are unknown 5022 * unless we have enough information to populate them. 5023 */ 5024 softc->fileno = softc->blkno = (daddr_t) -1; 5025 5026 /* 5027 * If the user requested changing the partition and the request 5028 * succeeded, note the partition. 5029 */ 5030 if ((error == 0) 5031 && (cp != 0)) 5032 softc->partition = locate_info->partition; 5033 else 5034 softc->partition = (daddr_t) -1; 5035 5036 if (error == 0) { 5037 switch (locate_info->dest_type) { 5038 case MT_LOCATE_DEST_FILE: 5039 /* 5040 * This is the only case where we can reliably 5041 * calculate the file and block numbers. 5042 */ 5043 softc->fileno = locate_info->logical_id; 5044 softc->blkno = 0; 5045 break; 5046 case MT_LOCATE_DEST_OBJECT: 5047 case MT_LOCATE_DEST_SET: 5048 case MT_LOCATE_DEST_EOD: 5049 default: 5050 break; 5051 } 5052 } 5053 5054 /* 5055 * Ask the drive for current position information. 5056 */ 5057 sagetpos(periph); 5058 5059 return (error); 5060 } 5061 5062 static int 5063 saretension(struct cam_periph *periph) 5064 { 5065 union ccb *ccb; 5066 struct sa_softc *softc; 5067 int error; 5068 5069 softc = (struct sa_softc *)periph->softc; 5070 5071 ccb = cam_periph_getccb(periph, 1); 5072 5073 /* It is safe to retry this operation */ 5074 scsi_load_unload(&ccb->csio, 5, NULL, MSG_SIMPLE_Q_TAG, FALSE, 5075 FALSE, TRUE, TRUE, SSD_FULL_SIZE, ERASE_TIMEOUT); 5076 5077 softc->dsreg = MTIO_DSREG_TEN; 5078 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats); 5079 softc->dsreg = MTIO_DSREG_REST; 5080 5081 xpt_release_ccb(ccb); 5082 if (error == 0) { 5083 softc->partition = softc->fileno = softc->blkno = (daddr_t) 0; 5084 sagetpos(periph); 5085 } else 5086 softc->partition = softc->fileno = softc->blkno = (daddr_t) -1; 5087 return (error); 5088 } 5089 5090 static int 5091 sareservereleaseunit(struct cam_periph *periph, int reserve) 5092 { 5093 union ccb *ccb; 5094 struct sa_softc *softc; 5095 int error; 5096 5097 softc = (struct sa_softc *)periph->softc; 5098 ccb = cam_periph_getccb(periph, 1); 5099 5100 /* It is safe to retry this operation */ 5101 scsi_reserve_release_unit(&ccb->csio, 2, NULL, MSG_SIMPLE_Q_TAG, 5102 FALSE, 0, SSD_FULL_SIZE, SCSIOP_TIMEOUT, reserve); 5103 softc->dsreg = MTIO_DSREG_RBSY; 5104 error = cam_periph_runccb(ccb, saerror, 0, 5105 SF_RETRY_UA | SF_NO_PRINT, softc->device_stats); 5106 softc->dsreg = MTIO_DSREG_REST; 5107 xpt_release_ccb(ccb); 5108 5109 /* 5110 * If the error was Illegal Request, then the device doesn't support 5111 * RESERVE/RELEASE. This is not an error. 5112 */ 5113 if (error == EINVAL) { 5114 error = 0; 5115 } 5116 5117 return (error); 5118 } 5119 5120 static int 5121 saloadunload(struct cam_periph *periph, int load) 5122 { 5123 union ccb *ccb; 5124 struct sa_softc *softc; 5125 int error; 5126 5127 softc = (struct sa_softc *)periph->softc; 5128 5129 ccb = cam_periph_getccb(periph, 1); 5130 5131 /* It is safe to retry this operation */ 5132 scsi_load_unload(&ccb->csio, 5, NULL, MSG_SIMPLE_Q_TAG, FALSE, 5133 FALSE, FALSE, load, SSD_FULL_SIZE, REWIND_TIMEOUT); 5134 5135 softc->dsreg = (load)? MTIO_DSREG_LD : MTIO_DSREG_UNL; 5136 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats); 5137 softc->dsreg = MTIO_DSREG_REST; 5138 xpt_release_ccb(ccb); 5139 5140 if (error || load == 0) { 5141 softc->partition = softc->fileno = softc->blkno = (daddr_t) -1; 5142 softc->rep_fileno = softc->rep_blkno = (daddr_t) -1; 5143 } else if (error == 0) { 5144 softc->partition = softc->fileno = softc->blkno = (daddr_t) 0; 5145 sagetpos(periph); 5146 } 5147 return (error); 5148 } 5149 5150 static int 5151 saerase(struct cam_periph *periph, int longerase) 5152 { 5153 5154 union ccb *ccb; 5155 struct sa_softc *softc; 5156 int error; 5157 5158 softc = (struct sa_softc *)periph->softc; 5159 if (softc->open_rdonly) 5160 return (EBADF); 5161 5162 ccb = cam_periph_getccb(periph, 1); 5163 5164 scsi_erase(&ccb->csio, 1, NULL, MSG_SIMPLE_Q_TAG, FALSE, longerase, 5165 SSD_FULL_SIZE, ERASE_TIMEOUT); 5166 5167 softc->dsreg = MTIO_DSREG_ZER; 5168 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats); 5169 softc->dsreg = MTIO_DSREG_REST; 5170 5171 xpt_release_ccb(ccb); 5172 return (error); 5173 } 5174 5175 /* 5176 * Fill an sbuf with density data in XML format. This particular macro 5177 * works for multi-byte integer fields. 5178 * 5179 * Note that 1 byte fields aren't supported here. The reason is that the 5180 * compiler does not evaluate the sizeof(), and assumes that any of the 5181 * sizes are possible for a given field. So passing in a multi-byte 5182 * field will result in a warning that the assignment makes an integer 5183 * from a pointer without a cast, if there is an assignment in the 1 byte 5184 * case. 5185 */ 5186 #define SAFILLDENSSB(dens_data, sb, indent, field, desc_remain, \ 5187 len_to_go, cur_offset, desc){ \ 5188 size_t cur_field_len; \ 5189 \ 5190 cur_field_len = sizeof(dens_data->field); \ 5191 if (desc_remain < cur_field_len) { \ 5192 len_to_go -= desc_remain; \ 5193 cur_offset += desc_remain; \ 5194 continue; \ 5195 } \ 5196 len_to_go -= cur_field_len; \ 5197 cur_offset += cur_field_len; \ 5198 desc_remain -= cur_field_len; \ 5199 \ 5200 switch (sizeof(dens_data->field)) { \ 5201 case 1: \ 5202 KASSERT(1 == 0, ("Programmer error, invalid 1 byte " \ 5203 "field width for SAFILLDENSFIELD")); \ 5204 break; \ 5205 case 2: \ 5206 SASBADDUINTDESC(sb, indent, \ 5207 scsi_2btoul(dens_data->field), %u, field, desc); \ 5208 break; \ 5209 case 3: \ 5210 SASBADDUINTDESC(sb, indent, \ 5211 scsi_3btoul(dens_data->field), %u, field, desc); \ 5212 break; \ 5213 case 4: \ 5214 SASBADDUINTDESC(sb, indent, \ 5215 scsi_4btoul(dens_data->field), %u, field, desc); \ 5216 break; \ 5217 case 8: \ 5218 SASBADDUINTDESC(sb, indent, \ 5219 (uintmax_t)scsi_8btou64(dens_data->field), %ju, \ 5220 field, desc); \ 5221 break; \ 5222 default: \ 5223 break; \ 5224 } \ 5225 }; 5226 /* 5227 * Fill an sbuf with density data in XML format. This particular macro 5228 * works for strings. 5229 */ 5230 #define SAFILLDENSSBSTR(dens_data, sb, indent, field, desc_remain, \ 5231 len_to_go, cur_offset, desc){ \ 5232 size_t cur_field_len; \ 5233 char tmpstr[32]; \ 5234 \ 5235 cur_field_len = sizeof(dens_data->field); \ 5236 if (desc_remain < cur_field_len) { \ 5237 len_to_go -= desc_remain; \ 5238 cur_offset += desc_remain; \ 5239 continue; \ 5240 } \ 5241 len_to_go -= cur_field_len; \ 5242 cur_offset += cur_field_len; \ 5243 desc_remain -= cur_field_len; \ 5244 \ 5245 cam_strvis(tmpstr, dens_data->field, \ 5246 sizeof(dens_data->field), sizeof(tmpstr)); \ 5247 SASBADDVARSTRDESC(sb, indent, tmpstr, %s, field, \ 5248 strlen(tmpstr) + 1, desc); \ 5249 }; 5250 5251 /* 5252 * Fill an sbuf with density data descriptors. 5253 */ 5254 static void 5255 safilldenstypesb(struct sbuf *sb, int *indent, uint8_t *buf, int buf_len, 5256 int is_density) 5257 { 5258 struct scsi_density_hdr *hdr; 5259 uint32_t hdr_len; 5260 int len_to_go, cur_offset; 5261 int length_offset; 5262 int num_reports, need_close; 5263 5264 /* 5265 * We need at least the header length. Note that this isn't an 5266 * error, not all tape drives will have every data type. 5267 */ 5268 if (buf_len < sizeof(*hdr)) 5269 goto bailout; 5270 5271 5272 hdr = (struct scsi_density_hdr *)buf; 5273 hdr_len = scsi_2btoul(hdr->length); 5274 len_to_go = min(buf_len - sizeof(*hdr), hdr_len); 5275 if (is_density) { 5276 length_offset = __offsetof(struct scsi_density_data, 5277 bits_per_mm); 5278 } else { 5279 length_offset = __offsetof(struct scsi_medium_type_data, 5280 num_density_codes); 5281 } 5282 cur_offset = sizeof(*hdr); 5283 5284 num_reports = 0; 5285 need_close = 0; 5286 5287 while (len_to_go > length_offset) { 5288 struct scsi_density_data *dens_data; 5289 struct scsi_medium_type_data *type_data; 5290 int desc_remain; 5291 size_t cur_field_len; 5292 5293 dens_data = NULL; 5294 type_data = NULL; 5295 5296 if (is_density) { 5297 dens_data =(struct scsi_density_data *)&buf[cur_offset]; 5298 if (dens_data->byte2 & SDD_DLV) 5299 desc_remain = scsi_2btoul(dens_data->length); 5300 else 5301 desc_remain = SDD_DEFAULT_LENGTH - 5302 length_offset; 5303 } else { 5304 type_data = (struct scsi_medium_type_data *) 5305 &buf[cur_offset]; 5306 desc_remain = scsi_2btoul(type_data->length); 5307 } 5308 5309 len_to_go -= length_offset; 5310 desc_remain = min(desc_remain, len_to_go); 5311 cur_offset += length_offset; 5312 5313 if (need_close != 0) { 5314 SASBENDNODE(sb, *indent, density_entry); 5315 } 5316 5317 SASBADDNODENUM(sb, *indent, density_entry, num_reports); 5318 num_reports++; 5319 need_close = 1; 5320 5321 if (is_density) { 5322 SASBADDUINTDESC(sb, *indent, 5323 dens_data->primary_density_code, %u, 5324 primary_density_code, "Primary Density Code"); 5325 SASBADDUINTDESC(sb, *indent, 5326 dens_data->secondary_density_code, %u, 5327 secondary_density_code, "Secondary Density Code"); 5328 SASBADDUINTDESC(sb, *indent, 5329 dens_data->byte2 & ~SDD_DLV, %#x, density_flags, 5330 "Density Flags"); 5331 5332 SAFILLDENSSB(dens_data, sb, *indent, bits_per_mm, 5333 desc_remain, len_to_go, cur_offset, "Bits per mm"); 5334 SAFILLDENSSB(dens_data, sb, *indent, media_width, 5335 desc_remain, len_to_go, cur_offset, "Media width"); 5336 SAFILLDENSSB(dens_data, sb, *indent, tracks, 5337 desc_remain, len_to_go, cur_offset, 5338 "Number of Tracks"); 5339 SAFILLDENSSB(dens_data, sb, *indent, capacity, 5340 desc_remain, len_to_go, cur_offset, "Capacity"); 5341 5342 SAFILLDENSSBSTR(dens_data, sb, *indent, assigning_org, 5343 desc_remain, len_to_go, cur_offset, 5344 "Assigning Organization"); 5345 5346 SAFILLDENSSBSTR(dens_data, sb, *indent, density_name, 5347 desc_remain, len_to_go, cur_offset, "Density Name"); 5348 5349 SAFILLDENSSBSTR(dens_data, sb, *indent, description, 5350 desc_remain, len_to_go, cur_offset, "Description"); 5351 } else { 5352 int i; 5353 5354 SASBADDUINTDESC(sb, *indent, type_data->medium_type, 5355 %u, medium_type, "Medium Type"); 5356 5357 cur_field_len = 5358 __offsetof(struct scsi_medium_type_data, 5359 media_width) - 5360 __offsetof(struct scsi_medium_type_data, 5361 num_density_codes); 5362 5363 if (desc_remain < cur_field_len) { 5364 len_to_go -= desc_remain; 5365 cur_offset += desc_remain; 5366 continue; 5367 } 5368 len_to_go -= cur_field_len; 5369 cur_offset += cur_field_len; 5370 desc_remain -= cur_field_len; 5371 5372 SASBADDINTDESC(sb, *indent, 5373 type_data->num_density_codes, %d, 5374 num_density_codes, "Number of Density Codes"); 5375 SASBADDNODE(sb, *indent, density_code_list); 5376 for (i = 0; i < type_data->num_density_codes; 5377 i++) { 5378 SASBADDUINTDESC(sb, *indent, 5379 type_data->primary_density_codes[i], %u, 5380 density_code, "Density Code"); 5381 } 5382 SASBENDNODE(sb, *indent, density_code_list); 5383 5384 SAFILLDENSSB(type_data, sb, *indent, media_width, 5385 desc_remain, len_to_go, cur_offset, 5386 "Media width"); 5387 SAFILLDENSSB(type_data, sb, *indent, medium_length, 5388 desc_remain, len_to_go, cur_offset, 5389 "Medium length"); 5390 5391 /* 5392 * Account for the two reserved bytes. 5393 */ 5394 cur_field_len = sizeof(type_data->reserved2); 5395 if (desc_remain < cur_field_len) { 5396 len_to_go -= desc_remain; 5397 cur_offset += desc_remain; 5398 continue; 5399 } 5400 len_to_go -= cur_field_len; 5401 cur_offset += cur_field_len; 5402 desc_remain -= cur_field_len; 5403 5404 SAFILLDENSSBSTR(type_data, sb, *indent, assigning_org, 5405 desc_remain, len_to_go, cur_offset, 5406 "Assigning Organization"); 5407 SAFILLDENSSBSTR(type_data, sb, *indent, 5408 medium_type_name, desc_remain, len_to_go, 5409 cur_offset, "Medium type name"); 5410 SAFILLDENSSBSTR(type_data, sb, *indent, description, 5411 desc_remain, len_to_go, cur_offset, "Description"); 5412 5413 } 5414 } 5415 if (need_close != 0) { 5416 SASBENDNODE(sb, *indent, density_entry); 5417 } 5418 5419 bailout: 5420 return; 5421 } 5422 5423 /* 5424 * Fill an sbuf with density data information 5425 */ 5426 static void 5427 safilldensitysb(struct sa_softc *softc, int *indent, struct sbuf *sb) 5428 { 5429 int i, is_density; 5430 5431 SASBADDNODE(sb, *indent, mtdensity); 5432 SASBADDUINTDESC(sb, *indent, softc->media_density, %u, media_density, 5433 "Current Medium Density"); 5434 is_density = 0; 5435 for (i = 0; i < SA_DENSITY_TYPES; i++) { 5436 int tmpint; 5437 5438 if (softc->density_info_valid[i] == 0) 5439 continue; 5440 5441 SASBADDNODE(sb, *indent, density_report); 5442 if (softc->density_type_bits[i] & SRDS_MEDIUM_TYPE) { 5443 tmpint = 1; 5444 is_density = 0; 5445 } else { 5446 tmpint = 0; 5447 is_density = 1; 5448 } 5449 SASBADDINTDESC(sb, *indent, tmpint, %d, medium_type_report, 5450 "Medium type report"); 5451 5452 if (softc->density_type_bits[i] & SRDS_MEDIA) 5453 tmpint = 1; 5454 else 5455 tmpint = 0; 5456 SASBADDINTDESC(sb, *indent, tmpint, %d, media_report, 5457 "Media report"); 5458 5459 safilldenstypesb(sb, indent, softc->density_info[i], 5460 softc->density_info_valid[i], is_density); 5461 SASBENDNODE(sb, *indent, density_report); 5462 } 5463 SASBENDNODE(sb, *indent, mtdensity); 5464 } 5465 5466 #endif /* _KERNEL */ 5467 5468 /* 5469 * Read tape block limits command. 5470 */ 5471 void 5472 scsi_read_block_limits(struct ccb_scsiio *csio, u_int32_t retries, 5473 void (*cbfcnp)(struct cam_periph *, union ccb *), 5474 u_int8_t tag_action, 5475 struct scsi_read_block_limits_data *rlimit_buf, 5476 u_int8_t sense_len, u_int32_t timeout) 5477 { 5478 struct scsi_read_block_limits *scsi_cmd; 5479 5480 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_IN, tag_action, 5481 (u_int8_t *)rlimit_buf, sizeof(*rlimit_buf), sense_len, 5482 sizeof(*scsi_cmd), timeout); 5483 5484 scsi_cmd = (struct scsi_read_block_limits *)&csio->cdb_io.cdb_bytes; 5485 bzero(scsi_cmd, sizeof(*scsi_cmd)); 5486 scsi_cmd->opcode = READ_BLOCK_LIMITS; 5487 } 5488 5489 void 5490 scsi_sa_read_write(struct ccb_scsiio *csio, u_int32_t retries, 5491 void (*cbfcnp)(struct cam_periph *, union ccb *), 5492 u_int8_t tag_action, int readop, int sli, 5493 int fixed, u_int32_t length, u_int8_t *data_ptr, 5494 u_int32_t dxfer_len, u_int8_t sense_len, u_int32_t timeout) 5495 { 5496 struct scsi_sa_rw *scsi_cmd; 5497 int read; 5498 5499 read = (readop & SCSI_RW_DIRMASK) == SCSI_RW_READ; 5500 5501 scsi_cmd = (struct scsi_sa_rw *)&csio->cdb_io.cdb_bytes; 5502 scsi_cmd->opcode = read ? SA_READ : SA_WRITE; 5503 scsi_cmd->sli_fixed = 0; 5504 if (sli && read) 5505 scsi_cmd->sli_fixed |= SAR_SLI; 5506 if (fixed) 5507 scsi_cmd->sli_fixed |= SARW_FIXED; 5508 scsi_ulto3b(length, scsi_cmd->length); 5509 scsi_cmd->control = 0; 5510 5511 cam_fill_csio(csio, retries, cbfcnp, (read ? CAM_DIR_IN : CAM_DIR_OUT) | 5512 ((readop & SCSI_RW_BIO) != 0 ? CAM_DATA_BIO : 0), 5513 tag_action, data_ptr, dxfer_len, sense_len, 5514 sizeof(*scsi_cmd), timeout); 5515 } 5516 5517 void 5518 scsi_load_unload(struct ccb_scsiio *csio, u_int32_t retries, 5519 void (*cbfcnp)(struct cam_periph *, union ccb *), 5520 u_int8_t tag_action, int immediate, int eot, 5521 int reten, int load, u_int8_t sense_len, 5522 u_int32_t timeout) 5523 { 5524 struct scsi_load_unload *scsi_cmd; 5525 5526 scsi_cmd = (struct scsi_load_unload *)&csio->cdb_io.cdb_bytes; 5527 bzero(scsi_cmd, sizeof(*scsi_cmd)); 5528 scsi_cmd->opcode = LOAD_UNLOAD; 5529 if (immediate) 5530 scsi_cmd->immediate = SLU_IMMED; 5531 if (eot) 5532 scsi_cmd->eot_reten_load |= SLU_EOT; 5533 if (reten) 5534 scsi_cmd->eot_reten_load |= SLU_RETEN; 5535 if (load) 5536 scsi_cmd->eot_reten_load |= SLU_LOAD; 5537 5538 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, 5539 NULL, 0, sense_len, sizeof(*scsi_cmd), timeout); 5540 } 5541 5542 void 5543 scsi_rewind(struct ccb_scsiio *csio, u_int32_t retries, 5544 void (*cbfcnp)(struct cam_periph *, union ccb *), 5545 u_int8_t tag_action, int immediate, u_int8_t sense_len, 5546 u_int32_t timeout) 5547 { 5548 struct scsi_rewind *scsi_cmd; 5549 5550 scsi_cmd = (struct scsi_rewind *)&csio->cdb_io.cdb_bytes; 5551 bzero(scsi_cmd, sizeof(*scsi_cmd)); 5552 scsi_cmd->opcode = REWIND; 5553 if (immediate) 5554 scsi_cmd->immediate = SREW_IMMED; 5555 5556 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL, 5557 0, sense_len, sizeof(*scsi_cmd), timeout); 5558 } 5559 5560 void 5561 scsi_space(struct ccb_scsiio *csio, u_int32_t retries, 5562 void (*cbfcnp)(struct cam_periph *, union ccb *), 5563 u_int8_t tag_action, scsi_space_code code, 5564 u_int32_t count, u_int8_t sense_len, u_int32_t timeout) 5565 { 5566 struct scsi_space *scsi_cmd; 5567 5568 scsi_cmd = (struct scsi_space *)&csio->cdb_io.cdb_bytes; 5569 scsi_cmd->opcode = SPACE; 5570 scsi_cmd->code = code; 5571 scsi_ulto3b(count, scsi_cmd->count); 5572 scsi_cmd->control = 0; 5573 5574 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL, 5575 0, sense_len, sizeof(*scsi_cmd), timeout); 5576 } 5577 5578 void 5579 scsi_write_filemarks(struct ccb_scsiio *csio, u_int32_t retries, 5580 void (*cbfcnp)(struct cam_periph *, union ccb *), 5581 u_int8_t tag_action, int immediate, int setmark, 5582 u_int32_t num_marks, u_int8_t sense_len, 5583 u_int32_t timeout) 5584 { 5585 struct scsi_write_filemarks *scsi_cmd; 5586 5587 scsi_cmd = (struct scsi_write_filemarks *)&csio->cdb_io.cdb_bytes; 5588 bzero(scsi_cmd, sizeof(*scsi_cmd)); 5589 scsi_cmd->opcode = WRITE_FILEMARKS; 5590 if (immediate) 5591 scsi_cmd->byte2 |= SWFMRK_IMMED; 5592 if (setmark) 5593 scsi_cmd->byte2 |= SWFMRK_WSMK; 5594 5595 scsi_ulto3b(num_marks, scsi_cmd->num_marks); 5596 5597 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL, 5598 0, sense_len, sizeof(*scsi_cmd), timeout); 5599 } 5600 5601 /* 5602 * The reserve and release unit commands differ only by their opcodes. 5603 */ 5604 void 5605 scsi_reserve_release_unit(struct ccb_scsiio *csio, u_int32_t retries, 5606 void (*cbfcnp)(struct cam_periph *, union ccb *), 5607 u_int8_t tag_action, int third_party, 5608 int third_party_id, u_int8_t sense_len, 5609 u_int32_t timeout, int reserve) 5610 { 5611 struct scsi_reserve_release_unit *scsi_cmd; 5612 5613 scsi_cmd = (struct scsi_reserve_release_unit *)&csio->cdb_io.cdb_bytes; 5614 bzero(scsi_cmd, sizeof(*scsi_cmd)); 5615 5616 if (reserve) 5617 scsi_cmd->opcode = RESERVE_UNIT; 5618 else 5619 scsi_cmd->opcode = RELEASE_UNIT; 5620 5621 if (third_party) { 5622 scsi_cmd->lun_thirdparty |= SRRU_3RD_PARTY; 5623 scsi_cmd->lun_thirdparty |= 5624 ((third_party_id << SRRU_3RD_SHAMT) & SRRU_3RD_MASK); 5625 } 5626 5627 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL, 5628 0, sense_len, sizeof(*scsi_cmd), timeout); 5629 } 5630 5631 void 5632 scsi_erase(struct ccb_scsiio *csio, u_int32_t retries, 5633 void (*cbfcnp)(struct cam_periph *, union ccb *), 5634 u_int8_t tag_action, int immediate, int long_erase, 5635 u_int8_t sense_len, u_int32_t timeout) 5636 { 5637 struct scsi_erase *scsi_cmd; 5638 5639 scsi_cmd = (struct scsi_erase *)&csio->cdb_io.cdb_bytes; 5640 bzero(scsi_cmd, sizeof(*scsi_cmd)); 5641 5642 scsi_cmd->opcode = ERASE; 5643 5644 if (immediate) 5645 scsi_cmd->lun_imm_long |= SE_IMMED; 5646 5647 if (long_erase) 5648 scsi_cmd->lun_imm_long |= SE_LONG; 5649 5650 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL, 5651 0, sense_len, sizeof(*scsi_cmd), timeout); 5652 } 5653 5654 /* 5655 * Read Tape Position command. 5656 */ 5657 void 5658 scsi_read_position(struct ccb_scsiio *csio, u_int32_t retries, 5659 void (*cbfcnp)(struct cam_periph *, union ccb *), 5660 u_int8_t tag_action, int hardsoft, 5661 struct scsi_tape_position_data *sbp, 5662 u_int8_t sense_len, u_int32_t timeout) 5663 { 5664 struct scsi_tape_read_position *scmd; 5665 5666 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_IN, tag_action, 5667 (u_int8_t *)sbp, sizeof (*sbp), sense_len, sizeof(*scmd), timeout); 5668 scmd = (struct scsi_tape_read_position *)&csio->cdb_io.cdb_bytes; 5669 bzero(scmd, sizeof(*scmd)); 5670 scmd->opcode = READ_POSITION; 5671 scmd->byte1 = hardsoft; 5672 } 5673 5674 /* 5675 * Read Tape Position command. 5676 */ 5677 void 5678 scsi_read_position_10(struct ccb_scsiio *csio, u_int32_t retries, 5679 void (*cbfcnp)(struct cam_periph *, union ccb *), 5680 u_int8_t tag_action, int service_action, 5681 u_int8_t *data_ptr, u_int32_t length, 5682 u_int32_t sense_len, u_int32_t timeout) 5683 { 5684 struct scsi_tape_read_position *scmd; 5685 5686 cam_fill_csio(csio, 5687 retries, 5688 cbfcnp, 5689 /*flags*/CAM_DIR_IN, 5690 tag_action, 5691 /*data_ptr*/data_ptr, 5692 /*dxfer_len*/length, 5693 sense_len, 5694 sizeof(*scmd), 5695 timeout); 5696 5697 5698 scmd = (struct scsi_tape_read_position *)&csio->cdb_io.cdb_bytes; 5699 bzero(scmd, sizeof(*scmd)); 5700 scmd->opcode = READ_POSITION; 5701 scmd->byte1 = service_action; 5702 /* 5703 * The length is only currently set (as of SSC4r03) if the extended 5704 * form is specified. The other forms have fixed lengths. 5705 */ 5706 if (service_action == SA_RPOS_EXTENDED_FORM) 5707 scsi_ulto2b(length, scmd->length); 5708 } 5709 5710 /* 5711 * Set Tape Position command. 5712 */ 5713 void 5714 scsi_set_position(struct ccb_scsiio *csio, u_int32_t retries, 5715 void (*cbfcnp)(struct cam_periph *, union ccb *), 5716 u_int8_t tag_action, int hardsoft, u_int32_t blkno, 5717 u_int8_t sense_len, u_int32_t timeout) 5718 { 5719 struct scsi_tape_locate *scmd; 5720 5721 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, 5722 (u_int8_t *)NULL, 0, sense_len, sizeof(*scmd), timeout); 5723 scmd = (struct scsi_tape_locate *)&csio->cdb_io.cdb_bytes; 5724 bzero(scmd, sizeof(*scmd)); 5725 scmd->opcode = LOCATE; 5726 if (hardsoft) 5727 scmd->byte1 |= SA_SPOS_BT; 5728 scsi_ulto4b(blkno, scmd->blkaddr); 5729 } 5730 5731 /* 5732 * XXX KDM figure out how to make a compatibility function. 5733 */ 5734 void 5735 scsi_locate_10(struct ccb_scsiio *csio, u_int32_t retries, 5736 void (*cbfcnp)(struct cam_periph *, union ccb *), 5737 u_int8_t tag_action, int immed, int cp, int hard, 5738 int64_t partition, u_int32_t block_address, 5739 int sense_len, u_int32_t timeout) 5740 { 5741 struct scsi_tape_locate *scmd; 5742 5743 cam_fill_csio(csio, 5744 retries, 5745 cbfcnp, 5746 CAM_DIR_NONE, 5747 tag_action, 5748 /*data_ptr*/ NULL, 5749 /*dxfer_len*/ 0, 5750 sense_len, 5751 sizeof(*scmd), 5752 timeout); 5753 scmd = (struct scsi_tape_locate *)&csio->cdb_io.cdb_bytes; 5754 bzero(scmd, sizeof(*scmd)); 5755 scmd->opcode = LOCATE; 5756 if (immed) 5757 scmd->byte1 |= SA_SPOS_IMMED; 5758 if (cp) 5759 scmd->byte1 |= SA_SPOS_CP; 5760 if (hard) 5761 scmd->byte1 |= SA_SPOS_BT; 5762 scsi_ulto4b(block_address, scmd->blkaddr); 5763 scmd->partition = partition; 5764 } 5765 5766 void 5767 scsi_locate_16(struct ccb_scsiio *csio, u_int32_t retries, 5768 void (*cbfcnp)(struct cam_periph *, union ccb *), 5769 u_int8_t tag_action, int immed, int cp, u_int8_t dest_type, 5770 int bam, int64_t partition, u_int64_t logical_id, 5771 int sense_len, u_int32_t timeout) 5772 { 5773 5774 struct scsi_locate_16 *scsi_cmd; 5775 5776 cam_fill_csio(csio, 5777 retries, 5778 cbfcnp, 5779 /*flags*/CAM_DIR_NONE, 5780 tag_action, 5781 /*data_ptr*/NULL, 5782 /*dxfer_len*/0, 5783 sense_len, 5784 sizeof(*scsi_cmd), 5785 timeout); 5786 5787 scsi_cmd = (struct scsi_locate_16 *)&csio->cdb_io.cdb_bytes; 5788 bzero(scsi_cmd, sizeof(*scsi_cmd)); 5789 scsi_cmd->opcode = LOCATE_16; 5790 if (immed) 5791 scsi_cmd->byte1 |= SA_LC_IMMEDIATE; 5792 if (cp) 5793 scsi_cmd->byte1 |= SA_LC_CP; 5794 scsi_cmd->byte1 |= (dest_type << SA_LC_DEST_TYPE_SHIFT); 5795 5796 scsi_cmd->byte2 |= bam; 5797 scsi_cmd->partition = partition; 5798 scsi_u64to8b(logical_id, scsi_cmd->logical_id); 5799 } 5800 5801 void 5802 scsi_report_density_support(struct ccb_scsiio *csio, u_int32_t retries, 5803 void (*cbfcnp)(struct cam_periph *, union ccb *), 5804 u_int8_t tag_action, int media, int medium_type, 5805 u_int8_t *data_ptr, u_int32_t length, 5806 u_int32_t sense_len, u_int32_t timeout) 5807 { 5808 struct scsi_report_density_support *scsi_cmd; 5809 5810 scsi_cmd =(struct scsi_report_density_support *)&csio->cdb_io.cdb_bytes; 5811 bzero(scsi_cmd, sizeof(*scsi_cmd)); 5812 5813 scsi_cmd->opcode = REPORT_DENSITY_SUPPORT; 5814 if (media != 0) 5815 scsi_cmd->byte1 |= SRDS_MEDIA; 5816 if (medium_type != 0) 5817 scsi_cmd->byte1 |= SRDS_MEDIUM_TYPE; 5818 5819 scsi_ulto2b(length, scsi_cmd->length); 5820 5821 cam_fill_csio(csio, 5822 retries, 5823 cbfcnp, 5824 /*flags*/CAM_DIR_IN, 5825 tag_action, 5826 /*data_ptr*/data_ptr, 5827 /*dxfer_len*/length, 5828 sense_len, 5829 sizeof(*scsi_cmd), 5830 timeout); 5831 } 5832 5833 void 5834 scsi_set_capacity(struct ccb_scsiio *csio, u_int32_t retries, 5835 void (*cbfcnp)(struct cam_periph *, union ccb *), 5836 u_int8_t tag_action, int byte1, u_int32_t proportion, 5837 u_int32_t sense_len, u_int32_t timeout) 5838 { 5839 struct scsi_set_capacity *scsi_cmd; 5840 5841 scsi_cmd = (struct scsi_set_capacity *)&csio->cdb_io.cdb_bytes; 5842 bzero(scsi_cmd, sizeof(*scsi_cmd)); 5843 5844 scsi_cmd->opcode = SET_CAPACITY; 5845 5846 scsi_cmd->byte1 = byte1; 5847 scsi_ulto2b(proportion, scsi_cmd->cap_proportion); 5848 5849 cam_fill_csio(csio, 5850 retries, 5851 cbfcnp, 5852 /*flags*/CAM_DIR_NONE, 5853 tag_action, 5854 /*data_ptr*/NULL, 5855 /*dxfer_len*/0, 5856 sense_len, 5857 sizeof(*scsi_cmd), 5858 timeout); 5859 } 5860 5861 void 5862 scsi_format_medium(struct ccb_scsiio *csio, u_int32_t retries, 5863 void (*cbfcnp)(struct cam_periph *, union ccb *), 5864 u_int8_t tag_action, int byte1, int byte2, 5865 u_int8_t *data_ptr, u_int32_t dxfer_len, 5866 u_int32_t sense_len, u_int32_t timeout) 5867 { 5868 struct scsi_format_medium *scsi_cmd; 5869 5870 scsi_cmd = (struct scsi_format_medium*)&csio->cdb_io.cdb_bytes; 5871 bzero(scsi_cmd, sizeof(*scsi_cmd)); 5872 5873 scsi_cmd->opcode = FORMAT_MEDIUM; 5874 5875 scsi_cmd->byte1 = byte1; 5876 scsi_cmd->byte2 = byte2; 5877 5878 scsi_ulto2b(dxfer_len, scsi_cmd->length); 5879 5880 cam_fill_csio(csio, 5881 retries, 5882 cbfcnp, 5883 /*flags*/(dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE, 5884 tag_action, 5885 /*data_ptr*/ data_ptr, 5886 /*dxfer_len*/ dxfer_len, 5887 sense_len, 5888 sizeof(*scsi_cmd), 5889 timeout); 5890 } 5891 5892 void 5893 scsi_allow_overwrite(struct ccb_scsiio *csio, u_int32_t retries, 5894 void (*cbfcnp)(struct cam_periph *, union ccb *), 5895 u_int8_t tag_action, int allow_overwrite, int partition, 5896 u_int64_t logical_id, u_int32_t sense_len, u_int32_t timeout) 5897 { 5898 struct scsi_allow_overwrite *scsi_cmd; 5899 5900 scsi_cmd = (struct scsi_allow_overwrite *)&csio->cdb_io.cdb_bytes; 5901 bzero(scsi_cmd, sizeof(*scsi_cmd)); 5902 5903 scsi_cmd->opcode = ALLOW_OVERWRITE; 5904 5905 scsi_cmd->allow_overwrite = allow_overwrite; 5906 scsi_cmd->partition = partition; 5907 scsi_u64to8b(logical_id, scsi_cmd->logical_id); 5908 5909 cam_fill_csio(csio, 5910 retries, 5911 cbfcnp, 5912 CAM_DIR_NONE, 5913 tag_action, 5914 /*data_ptr*/ NULL, 5915 /*dxfer_len*/ 0, 5916 sense_len, 5917 sizeof(*scsi_cmd), 5918 timeout); 5919 } 5920