| 1 | /* |
| 2 | * $FreeBSD: src/sys/cam/scsi/scsi_sa.c,v 1.45.2.13 2002/12/17 17:08:50 trhodes Exp $ |
| 3 | * $DragonFly: src/sys/bus/cam/scsi/scsi_sa.c,v 1.36 2008/07/18 00:07:23 dillon Exp $ |
| 4 | * |
| 5 | * Implementation of SCSI Sequential Access Peripheral driver for CAM. |
| 6 | * |
| 7 | * Copyright (c) 1999, 2000 Matthew Jacob |
| 8 | * All rights reserved. |
| 9 | * |
| 10 | * Redistribution and use in source and binary forms, with or without |
| 11 | * modification, are permitted provided that the following conditions |
| 12 | * are met: |
| 13 | * 1. Redistributions of source code must retain the above copyright |
| 14 | * notice, this list of conditions, and the following disclaimer, |
| 15 | * without modification, immediately at the beginning of the file. |
| 16 | * 2. The name of the author may not be used to endorse or promote products |
| 17 | * derived from this software without specific prior written permission. |
| 18 | * |
| 19 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| 20 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 21 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 22 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR |
| 23 | * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 24 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 25 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 26 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 27 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 28 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 29 | * SUCH DAMAGE. |
| 30 | * |
| 31 | */ |
| 32 | |
| 33 | #include <sys/param.h> |
| 34 | #include <sys/queue.h> |
| 35 | #ifdef _KERNEL |
| 36 | #include <sys/systm.h> |
| 37 | #include <sys/kernel.h> |
| 38 | #endif |
| 39 | #include <sys/types.h> |
| 40 | #ifdef _KERNEL |
| 41 | #include <sys/buf.h> |
| 42 | #include <sys/malloc.h> |
| 43 | #endif |
| 44 | #include <sys/mtio.h> |
| 45 | #include <sys/conf.h> |
| 46 | #ifdef _KERNEL |
| 47 | #include <sys/proc.h> |
| 48 | #include <sys/buf2.h> |
| 49 | #include <sys/thread2.h> |
| 50 | #endif |
| 51 | #include <sys/fcntl.h> |
| 52 | #include <sys/devicestat.h> |
| 53 | #include <machine/limits.h> |
| 54 | |
| 55 | #ifndef _KERNEL |
| 56 | #include <stdio.h> |
| 57 | #include <string.h> |
| 58 | #endif |
| 59 | |
| 60 | #include "../cam.h" |
| 61 | #include "../cam_ccb.h" |
| 62 | #include "../cam_extend.h" |
| 63 | #include "../cam_periph.h" |
| 64 | #include "../cam_xpt_periph.h" |
| 65 | #include "../cam_debug.h" |
| 66 | |
| 67 | #include "scsi_all.h" |
| 68 | #include "scsi_message.h" |
| 69 | #include "scsi_sa.h" |
| 70 | |
| 71 | #ifdef _KERNEL |
| 72 | |
| 73 | #include <opt_sa.h> |
| 74 | |
| 75 | #ifndef SA_IO_TIMEOUT |
| 76 | #define SA_IO_TIMEOUT 4 |
| 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 | |
| 88 | #define SCSIOP_TIMEOUT (60 * 1000) /* not an option */ |
| 89 | |
| 90 | #define IO_TIMEOUT (SA_IO_TIMEOUT * 60 * 1000) |
| 91 | #define REWIND_TIMEOUT (SA_REWIND_TIMEOUT * 60 * 1000) |
| 92 | #define ERASE_TIMEOUT (SA_ERASE_TIMEOUT * 60 * 1000) |
| 93 | #define SPACE_TIMEOUT (SA_SPACE_TIMEOUT * 60 * 1000) |
| 94 | |
| 95 | /* |
| 96 | * Additional options that can be set for config: SA_1FM_AT_EOT |
| 97 | */ |
| 98 | |
| 99 | #ifndef UNUSED_PARAMETER |
| 100 | #define UNUSED_PARAMETER(x) x = x |
| 101 | #endif |
| 102 | |
| 103 | #define QFRLS(ccb) \ |
| 104 | if (((ccb)->ccb_h.status & CAM_DEV_QFRZN) != 0) \ |
| 105 | cam_release_devq((ccb)->ccb_h.path, 0, 0, 0, FALSE) |
| 106 | |
| 107 | /* |
| 108 | * Driver states |
| 109 | */ |
| 110 | |
| 111 | MALLOC_DEFINE(M_SCSISA, "SCSI sa", "SCSI sequential access buffers"); |
| 112 | |
| 113 | typedef enum { |
| 114 | SA_STATE_NORMAL, SA_STATE_ABNORMAL |
| 115 | } sa_state; |
| 116 | |
| 117 | #define ccb_pflags ppriv_field0 |
| 118 | #define ccb_bio ppriv_ptr1 |
| 119 | |
| 120 | #define SA_CCB_BUFFER_IO 0x0 |
| 121 | #define SA_CCB_WAITING 0x1 |
| 122 | #define SA_CCB_TYPEMASK 0x1 |
| 123 | #define SA_POSITION_UPDATED 0x2 |
| 124 | |
| 125 | #define Set_CCB_Type(x, type) \ |
| 126 | x->ccb_h.ccb_pflags &= ~SA_CCB_TYPEMASK; \ |
| 127 | x->ccb_h.ccb_pflags |= type |
| 128 | |
| 129 | #define CCB_Type(x) (x->ccb_h.ccb_pflags & SA_CCB_TYPEMASK) |
| 130 | |
| 131 | |
| 132 | |
| 133 | typedef enum { |
| 134 | SA_FLAG_OPEN = 0x0001, |
| 135 | SA_FLAG_FIXED = 0x0002, |
| 136 | SA_FLAG_TAPE_LOCKED = 0x0004, |
| 137 | SA_FLAG_TAPE_MOUNTED = 0x0008, |
| 138 | SA_FLAG_TAPE_WP = 0x0010, |
| 139 | SA_FLAG_TAPE_WRITTEN = 0x0020, |
| 140 | SA_FLAG_EOM_PENDING = 0x0040, |
| 141 | SA_FLAG_EIO_PENDING = 0x0080, |
| 142 | SA_FLAG_EOF_PENDING = 0x0100, |
| 143 | SA_FLAG_ERR_PENDING = (SA_FLAG_EOM_PENDING|SA_FLAG_EIO_PENDING| |
| 144 | SA_FLAG_EOF_PENDING), |
| 145 | SA_FLAG_INVALID = 0x0200, |
| 146 | SA_FLAG_COMP_ENABLED = 0x0400, |
| 147 | SA_FLAG_COMP_SUPP = 0x0800, |
| 148 | SA_FLAG_COMP_UNSUPP = 0x1000, |
| 149 | SA_FLAG_TAPE_FROZEN = 0x2000 |
| 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 = 0x00, |
| 160 | SA_PARAM_BLOCKSIZE = 0x01, |
| 161 | SA_PARAM_DENSITY = 0x02, |
| 162 | SA_PARAM_COMPRESSION = 0x04, |
| 163 | SA_PARAM_BUFF_MODE = 0x08, |
| 164 | SA_PARAM_NUMBLOCKS = 0x10, |
| 165 | SA_PARAM_WP = 0x20, |
| 166 | SA_PARAM_SPEED = 0x40, |
| 167 | SA_PARAM_ALL = 0x7f |
| 168 | } sa_params; |
| 169 | |
| 170 | typedef enum { |
| 171 | SA_QUIRK_NONE = 0x00, |
| 172 | SA_QUIRK_NOCOMP = 0x01, /* Can't deal with compression at all */ |
| 173 | SA_QUIRK_FIXED = 0x02, /* Force fixed mode */ |
| 174 | SA_QUIRK_VARIABLE = 0x04, /* Force variable mode */ |
| 175 | SA_QUIRK_2FM = 0x08, /* Needs Two File Marks at EOD */ |
| 176 | SA_QUIRK_1FM = 0x10, /* No more than 1 File Mark at EOD */ |
| 177 | SA_QUIRK_NODREAD = 0x20, /* Don't try and dummy read density */ |
| 178 | SA_QUIRK_NO_MODESEL = 0x40, /* Don't do mode select at all */ |
| 179 | SA_QUIRK_NO_CPAGE = 0x80 /* Don't use DEVICE COMPRESSION page */ |
| 180 | } sa_quirks; |
| 181 | |
| 182 | /* units are bits 4-7, 16-21 (1024 units) */ |
| 183 | #define SAUNIT(DEV) \ |
| 184 | (((minor(DEV) & 0xF0) >> 4) | ((minor(DEV) & 0x3f0000) >> 16)) |
| 185 | |
| 186 | #define SAMODE(z) ((minor(z) & 0x3)) |
| 187 | #define SADENSITY(z) (((minor(z) >> 2) & 0x3)) |
| 188 | #define SA_IS_CTRL(z) (minor(z) & (1 << 29)) |
| 189 | |
| 190 | #define SA_NOT_CTLDEV 0 |
| 191 | #define SA_CTLDEV 1 |
| 192 | |
| 193 | #define SA_ATYPE_R 0 |
| 194 | #define SA_ATYPE_NR 1 |
| 195 | #define SA_ATYPE_ER 2 |
| 196 | |
| 197 | #define SAMINOR(ctl, unit, mode, access) \ |
| 198 | ((ctl << 29) | ((unit & 0x3f0) << 16) | ((unit & 0xf) << 4) | \ |
| 199 | (mode << 0x2) | (access & 0x3)) |
| 200 | |
| 201 | #define SA_UNITMASK SAMINOR(0, -1, 0, 0) |
| 202 | #define SA_UNIT(unit) SAMINOR(0, unit, 0, 0) |
| 203 | |
| 204 | #define SA_NUM_MODES 4 |
| 205 | |
| 206 | struct sa_softc { |
| 207 | sa_state state; |
| 208 | sa_flags flags; |
| 209 | sa_quirks quirks; |
| 210 | struct bio_queue_head bio_queue; |
| 211 | int queue_count; |
| 212 | struct devstat device_stats; |
| 213 | int blk_gran; |
| 214 | int blk_mask; |
| 215 | int blk_shift; |
| 216 | u_int32_t max_blk; |
| 217 | u_int32_t min_blk; |
| 218 | u_int32_t comp_algorithm; |
| 219 | u_int32_t saved_comp_algorithm; |
| 220 | u_int32_t media_blksize; |
| 221 | u_int32_t last_media_blksize; |
| 222 | u_int32_t media_numblks; |
| 223 | u_int8_t media_density; |
| 224 | u_int8_t speed; |
| 225 | u_int8_t scsi_rev; |
| 226 | u_int8_t dsreg; /* mtio mt_dsreg, redux */ |
| 227 | int buffer_mode; |
| 228 | int filemarks; |
| 229 | union ccb saved_ccb; |
| 230 | int last_resid_was_io; |
| 231 | |
| 232 | /* |
| 233 | * Relative to BOT Location. |
| 234 | */ |
| 235 | daddr_t fileno; |
| 236 | daddr_t blkno; |
| 237 | |
| 238 | /* |
| 239 | * Latched Error Info |
| 240 | */ |
| 241 | struct { |
| 242 | struct scsi_sense_data _last_io_sense; |
| 243 | u_int32_t _last_io_resid; |
| 244 | u_int8_t _last_io_cdb[CAM_MAX_CDBLEN]; |
| 245 | struct scsi_sense_data _last_ctl_sense; |
| 246 | u_int32_t _last_ctl_resid; |
| 247 | u_int8_t _last_ctl_cdb[CAM_MAX_CDBLEN]; |
| 248 | #define last_io_sense errinfo._last_io_sense |
| 249 | #define last_io_resid errinfo._last_io_resid |
| 250 | #define last_io_cdb errinfo._last_io_cdb |
| 251 | #define last_ctl_sense errinfo._last_ctl_sense |
| 252 | #define last_ctl_resid errinfo._last_ctl_resid |
| 253 | #define last_ctl_cdb errinfo._last_ctl_cdb |
| 254 | } errinfo; |
| 255 | /* |
| 256 | * Misc other flags/state |
| 257 | */ |
| 258 | u_int32_t |
| 259 | : 29, |
| 260 | open_rdonly : 1, /* open read-only */ |
| 261 | open_pending_mount : 1, /* open pending mount */ |
| 262 | ctrl_mode : 1; /* control device open */ |
| 263 | }; |
| 264 | |
| 265 | struct sa_quirk_entry { |
| 266 | struct scsi_inquiry_pattern inq_pat; /* matching pattern */ |
| 267 | sa_quirks quirks; /* specific quirk type */ |
| 268 | u_int32_t prefblk; /* preferred blocksize when in fixed mode */ |
| 269 | }; |
| 270 | |
| 271 | static struct sa_quirk_entry sa_quirk_table[] = |
| 272 | { |
| 273 | { |
| 274 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "OnStream", |
| 275 | "ADR*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_NODREAD | |
| 276 | SA_QUIRK_1FM|SA_QUIRK_NO_MODESEL, 32768 |
| 277 | }, |
| 278 | { |
| 279 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE", |
| 280 | "Python 06408*", "*"}, SA_QUIRK_NODREAD, 0 |
| 281 | }, |
| 282 | { |
| 283 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE", |
| 284 | "Python 25601*", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_NODREAD, 0 |
| 285 | }, |
| 286 | { |
| 287 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE", |
| 288 | "Python*", "*"}, SA_QUIRK_NODREAD, 0 |
| 289 | }, |
| 290 | { |
| 291 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE", |
| 292 | "VIPER 150*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512 |
| 293 | }, |
| 294 | { |
| 295 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE", |
| 296 | "VIPER 2525 25462", "-011"}, |
| 297 | SA_QUIRK_NOCOMP|SA_QUIRK_1FM|SA_QUIRK_NODREAD, 0 |
| 298 | }, |
| 299 | { |
| 300 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE", |
| 301 | "VIPER 2525*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 1024 |
| 302 | }, |
| 303 | #if 0 |
| 304 | { |
| 305 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP", |
| 306 | "C15*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_NO_CPAGE, 0, |
| 307 | }, |
| 308 | #endif |
| 309 | { |
| 310 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP", |
| 311 | "C56*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0 |
| 312 | }, |
| 313 | { |
| 314 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP", |
| 315 | "T20*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512 |
| 316 | }, |
| 317 | { |
| 318 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP", |
| 319 | "T4000*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512 |
| 320 | }, |
| 321 | { |
| 322 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP", |
| 323 | "HP-88780*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0 |
| 324 | }, |
| 325 | { |
| 326 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "KENNEDY", |
| 327 | "*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0 |
| 328 | }, |
| 329 | { |
| 330 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "M4 DATA", |
| 331 | "123107 SCSI*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0 |
| 332 | }, |
| 333 | { /* jreynold@primenet.com */ |
| 334 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "Seagate", |
| 335 | "STT8000N*", "*"}, SA_QUIRK_1FM, 0 |
| 336 | }, |
| 337 | { /* mike@sentex.net */ |
| 338 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "Seagate", |
| 339 | "STT20000*", "*"}, SA_QUIRK_1FM, 0 |
| 340 | }, |
| 341 | { |
| 342 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG", |
| 343 | " TDC 3600", "U07:"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512 |
| 344 | }, |
| 345 | { |
| 346 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG", |
| 347 | " TDC 3800", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512 |
| 348 | }, |
| 349 | { |
| 350 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG", |
| 351 | " TDC 4100", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512 |
| 352 | }, |
| 353 | { |
| 354 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG", |
| 355 | " TDC 4200", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512 |
| 356 | }, |
| 357 | { |
| 358 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG", |
| 359 | " SLR*", "*"}, SA_QUIRK_1FM, 0 |
| 360 | }, |
| 361 | { |
| 362 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "WANGTEK", |
| 363 | "5525ES*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512 |
| 364 | }, |
| 365 | { |
| 366 | { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "WANGTEK", |
| 367 | "51000*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 1024 |
| 368 | } |
| 369 | }; |
| 370 | |
| 371 | static d_open_t saopen; |
| 372 | static d_close_t saclose; |
| 373 | static d_strategy_t sastrategy; |
| 374 | static d_ioctl_t saioctl; |
| 375 | static periph_init_t sainit; |
| 376 | static periph_ctor_t saregister; |
| 377 | static periph_oninv_t saoninvalidate; |
| 378 | static periph_dtor_t sacleanup; |
| 379 | static periph_start_t sastart; |
| 380 | static void saasync(void *callback_arg, u_int32_t code, |
| 381 | struct cam_path *path, void *arg); |
| 382 | static void sadone(struct cam_periph *periph, |
| 383 | union ccb *start_ccb); |
| 384 | static int saerror(union ccb *ccb, u_int32_t cam_flags, |
| 385 | u_int32_t sense_flags); |
| 386 | static int samarkswanted(struct cam_periph *); |
| 387 | static int sacheckeod(struct cam_periph *periph); |
| 388 | static int sagetparams(struct cam_periph *periph, |
| 389 | sa_params params_to_get, |
| 390 | u_int32_t *blocksize, u_int8_t *density, |
| 391 | u_int32_t *numblocks, int *buff_mode, |
| 392 | u_int8_t *write_protect, u_int8_t *speed, |
| 393 | int *comp_supported, int *comp_enabled, |
| 394 | u_int32_t *comp_algorithm, |
| 395 | sa_comp_t *comp_page); |
| 396 | static int sasetparams(struct cam_periph *periph, |
| 397 | sa_params params_to_set, |
| 398 | u_int32_t blocksize, u_int8_t density, |
| 399 | u_int32_t comp_algorithm, |
| 400 | u_int32_t sense_flags); |
| 401 | static void saprevent(struct cam_periph *periph, int action); |
| 402 | static int sarewind(struct cam_periph *periph); |
| 403 | static int saspace(struct cam_periph *periph, int count, |
| 404 | scsi_space_code code); |
| 405 | static int samount(struct cam_periph *, int, cdev_t); |
| 406 | static int saretension(struct cam_periph *periph); |
| 407 | static int sareservereleaseunit(struct cam_periph *periph, |
| 408 | int reserve); |
| 409 | static int saloadunload(struct cam_periph *periph, int load); |
| 410 | static int saerase(struct cam_periph *periph, int longerase); |
| 411 | static int sawritefilemarks(struct cam_periph *periph, |
| 412 | int nmarks, int setmarks); |
| 413 | static int sardpos(struct cam_periph *periph, int, u_int32_t *); |
| 414 | static int sasetpos(struct cam_periph *periph, int, u_int32_t *); |
| 415 | |
| 416 | |
| 417 | static struct periph_driver sadriver = |
| 418 | { |
| 419 | sainit, "sa", |
| 420 | TAILQ_HEAD_INITIALIZER(sadriver.units), /* generation */ 0 |
| 421 | }; |
| 422 | |
| 423 | PERIPHDRIVER_DECLARE(sa, sadriver); |
| 424 | |
| 425 | /* For 2.2-stable support */ |
| 426 | #ifndef D_TAPE |
| 427 | #define D_TAPE 0 |
| 428 | #endif |
| 429 | |
| 430 | #define SA_CDEV_MAJOR 14 |
| 431 | |
| 432 | static struct dev_ops sa_ops = { |
| 433 | { "sa", SA_CDEV_MAJOR, D_TAPE }, |
| 434 | .d_open = saopen, |
| 435 | .d_close = saclose, |
| 436 | .d_read = physread, |
| 437 | .d_write = physwrite, |
| 438 | .d_ioctl = saioctl, |
| 439 | .d_strategy = sastrategy, |
| 440 | }; |
| 441 | |
| 442 | static struct extend_array *saperiphs; |
| 443 | |
| 444 | static int |
| 445 | saopen(struct dev_open_args *ap) |
| 446 | { |
| 447 | cdev_t dev = ap->a_head.a_dev; |
| 448 | struct cam_periph *periph; |
| 449 | struct sa_softc *softc; |
| 450 | int unit; |
| 451 | int error; |
| 452 | |
| 453 | unit = SAUNIT(dev); |
| 454 | |
| 455 | periph = cam_extend_get(saperiphs, unit); |
| 456 | if (cam_periph_acquire(periph) != CAM_REQ_CMP) { |
| 457 | return (ENXIO); |
| 458 | } |
| 459 | |
| 460 | cam_periph_lock(periph); |
| 461 | |
| 462 | softc = (struct sa_softc *)periph->softc; |
| 463 | |
| 464 | CAM_DEBUG(periph->path, CAM_DEBUG_TRACE|CAM_DEBUG_INFO, |
| 465 | ("saopen(%d): dev=0x%x softc=0x%x\n", unit, unit, softc->flags)); |
| 466 | |
| 467 | if (SA_IS_CTRL(dev)) { |
| 468 | softc->ctrl_mode = 1; |
| 469 | cam_periph_unlock(periph); |
| 470 | return (0); |
| 471 | } |
| 472 | |
| 473 | if ((error = cam_periph_hold(periph, PCATCH)) != 0) { |
| 474 | cam_periph_unlock(periph); |
| 475 | cam_periph_release(periph); |
| 476 | return (error); |
| 477 | } |
| 478 | |
| 479 | if (softc->flags & SA_FLAG_OPEN) { |
| 480 | error = EBUSY; |
| 481 | } else if (softc->flags & SA_FLAG_INVALID) { |
| 482 | error = ENXIO; |
| 483 | } else { |
| 484 | /* |
| 485 | * Preserve whether this is a read_only open. |
| 486 | */ |
| 487 | softc->open_rdonly = (ap->a_oflags & O_RDWR) == O_RDONLY; |
| 488 | |
| 489 | /* |
| 490 | * The function samount ensures media is loaded and ready. |
| 491 | * It also does a device RESERVE if the tape isn't yet mounted. |
| 492 | * |
| 493 | * If the mount fails and this was a non-blocking open, |
| 494 | * make this a 'open_pending_mount' action. |
| 495 | */ |
| 496 | error = samount(periph, ap->a_oflags, dev); |
| 497 | if (error && (ap->a_oflags & O_NONBLOCK)) { |
| 498 | softc->flags |= SA_FLAG_OPEN; |
| 499 | softc->open_pending_mount = 1; |
| 500 | cam_periph_unhold(periph, 1); |
| 501 | return (0); |
| 502 | } |
| 503 | } |
| 504 | |
| 505 | if (error) { |
| 506 | cam_periph_unhold(periph, 1); |
| 507 | cam_periph_release(periph); |
| 508 | return (error); |
| 509 | } |
| 510 | |
| 511 | saprevent(periph, PR_PREVENT); |
| 512 | softc->flags |= SA_FLAG_OPEN; |
| 513 | |
| 514 | cam_periph_unhold(periph, 1); |
| 515 | return (error); |
| 516 | } |
| 517 | |
| 518 | static int |
| 519 | saclose(struct dev_close_args *ap) |
| 520 | { |
| 521 | cdev_t dev = ap->a_head.a_dev; |
| 522 | struct cam_periph *periph; |
| 523 | struct sa_softc *softc; |
| 524 | int unit, mode, error, writing, tmp; |
| 525 | int closedbits = SA_FLAG_OPEN; |
| 526 | |
| 527 | unit = SAUNIT(dev); |
| 528 | mode = SAMODE(dev); |
| 529 | periph = cam_extend_get(saperiphs, unit); |
| 530 | if (periph == NULL) |
| 531 | return (ENXIO); |
| 532 | |
| 533 | cam_periph_lock(periph); |
| 534 | |
| 535 | softc = (struct sa_softc *)periph->softc; |
| 536 | |
| 537 | CAM_DEBUG(periph->path, CAM_DEBUG_TRACE|CAM_DEBUG_INFO, |
| 538 | ("saclose(%d): dev=0x%x softc=0x%x\n", unit, unit, softc->flags)); |
| 539 | |
| 540 | |
| 541 | softc->open_rdonly = 0; |
| 542 | if (SA_IS_CTRL(dev)) { |
| 543 | softc->ctrl_mode = 0; |
| 544 | cam_periph_unlock(periph); |
| 545 | cam_periph_release(periph); |
| 546 | return (0); |
| 547 | } |
| 548 | |
| 549 | if (softc->open_pending_mount) { |
| 550 | softc->flags &= ~SA_FLAG_OPEN; |
| 551 | softc->open_pending_mount = 0; |
| 552 | cam_periph_unlock(periph); |
| 553 | cam_periph_release(periph); |
| 554 | return (0); |
| 555 | } |
| 556 | |
| 557 | if ((error = cam_periph_hold(periph, 0)) != 0) { |
| 558 | cam_periph_unlock(periph); |
| 559 | return (error); |
| 560 | } |
| 561 | |
| 562 | /* |
| 563 | * Were we writing the tape? |
| 564 | */ |
| 565 | writing = (softc->flags & SA_FLAG_TAPE_WRITTEN) != 0; |
| 566 | |
| 567 | /* |
| 568 | * See whether or not we need to write filemarks. If this |
| 569 | * fails, we probably have to assume we've lost tape |
| 570 | * position. |
| 571 | */ |
| 572 | error = sacheckeod(periph); |
| 573 | if (error) { |
| 574 | xpt_print(periph->path, |
| 575 | "failed to write terminating filemark(s)\n"); |
| 576 | softc->flags |= SA_FLAG_TAPE_FROZEN; |
| 577 | } |
| 578 | |
| 579 | /* |
| 580 | * Whatever we end up doing, allow users to eject tapes from here on. |
| 581 | */ |
| 582 | saprevent(periph, PR_ALLOW); |
| 583 | |
| 584 | /* |
| 585 | * Decide how to end... |
| 586 | */ |
| 587 | if ((softc->flags & SA_FLAG_TAPE_MOUNTED) == 0) { |
| 588 | closedbits |= SA_FLAG_TAPE_FROZEN; |
| 589 | } else switch (mode) { |
| 590 | case SA_MODE_OFFLINE: |
| 591 | /* |
| 592 | * An 'offline' close is an unconditional release of |
| 593 | * frozen && mount conditions, irrespective of whether |
| 594 | * these operations succeeded. The reason for this is |
| 595 | * to allow at least some kind of programmatic way |
| 596 | * around our state getting all fouled up. If somebody |
| 597 | * issues an 'offline' command, that will be allowed |
| 598 | * to clear state. |
| 599 | */ |
| 600 | sarewind(periph); |
| 601 | saloadunload(periph, FALSE); |
| 602 | closedbits |= SA_FLAG_TAPE_MOUNTED|SA_FLAG_TAPE_FROZEN; |
| 603 | break; |
| 604 | case SA_MODE_REWIND: |
| 605 | /* |
| 606 | * If the rewind fails, return an error- if anyone cares, |
| 607 | * but not overwriting any previous error. |
| 608 | * |
| 609 | * We don't clear the notion of mounted here, but we do |
| 610 | * clear the notion of frozen if we successfully rewound. |
| 611 | */ |
| 612 | tmp = sarewind(periph); |
| 613 | if (tmp) { |
| 614 | if (error != 0) |
| 615 | error = tmp; |
| 616 | } else { |
| 617 | closedbits |= SA_FLAG_TAPE_FROZEN; |
| 618 | } |
| 619 | break; |
| 620 | case SA_MODE_NOREWIND: |
| 621 | /* |
| 622 | * If we're not rewinding/unloading the tape, find out |
| 623 | * whether we need to back up over one of two filemarks |
| 624 | * we wrote (if we wrote two filemarks) so that appends |
| 625 | * from this point on will be sane. |
| 626 | */ |
| 627 | if (error == 0 && writing && (softc->quirks & SA_QUIRK_2FM)) { |
| 628 | tmp = saspace(periph, -1, SS_FILEMARKS); |
| 629 | if (tmp) { |
| 630 | xpt_print(periph->path, "unable to backspace " |
| 631 | "over one of double filemarks at end of " |
| 632 | "tape\n"); |
| 633 | xpt_print(periph->path, "it is possible that " |
| 634 | "this device needs a SA_QUIRK_1FM quirk set" |
| 635 | "for it\n"); |
| 636 | softc->flags |= SA_FLAG_TAPE_FROZEN; |
| 637 | } |
| 638 | } |
| 639 | break; |
| 640 | default: |
| 641 | xpt_print(periph->path, "unknown mode 0x%x in saclose\n", mode); |
| 642 | /* NOTREACHED */ |
| 643 | break; |
| 644 | } |
| 645 | |
| 646 | /* |
| 647 | * We wish to note here that there are no more filemarks to be written. |
| 648 | */ |
| 649 | softc->filemarks = 0; |
| 650 | softc->flags &= ~SA_FLAG_TAPE_WRITTEN; |
| 651 | |
| 652 | /* |
| 653 | * And we are no longer open for business. |
| 654 | */ |
| 655 | softc->flags &= ~closedbits; |
| 656 | |
| 657 | /* |
| 658 | * Inform users if tape state if frozen.... |
| 659 | */ |
| 660 | if (softc->flags & SA_FLAG_TAPE_FROZEN) { |
| 661 | xpt_print(periph->path, "tape is now frozen- use an OFFLINE, " |
| 662 | "REWIND or MTEOM command to clear this state.\n"); |
| 663 | } |
| 664 | |
| 665 | /* release the device if it is no longer mounted */ |
| 666 | if ((softc->flags & SA_FLAG_TAPE_MOUNTED) == 0) |
| 667 | sareservereleaseunit(periph, FALSE); |
| 668 | |
| 669 | cam_periph_unhold(periph, 1); |
| 670 | cam_periph_release(periph); |
| 671 | |
| 672 | return (error); |
| 673 | } |
| 674 | |
| 675 | /* |
| 676 | * Actually translate the requested transfer into one the physical driver |
| 677 | * can understand. The transfer is described by a buf and will include |
| 678 | * only one physical transfer. |
| 679 | */ |
| 680 | static int |
| 681 | sastrategy(struct dev_strategy_args *ap) |
| 682 | { |
| 683 | cdev_t dev = ap->a_head.a_dev; |
| 684 | struct bio *bio = ap->a_bio; |
| 685 | struct buf *bp = bio->bio_buf; |
| 686 | struct cam_periph *periph; |
| 687 | struct sa_softc *softc; |
| 688 | u_int unit; |
| 689 | |
| 690 | if (SA_IS_CTRL(dev)) { |
| 691 | bp->b_error = EINVAL; |
| 692 | goto bad; |
| 693 | } |
| 694 | unit = SAUNIT(dev); |
| 695 | periph = cam_extend_get(saperiphs, unit); |
| 696 | if (periph == NULL) { |
| 697 | bp->b_error = ENXIO; |
| 698 | goto bad; |
| 699 | } |
| 700 | cam_periph_lock(periph); |
| 701 | |
| 702 | softc = (struct sa_softc *)periph->softc; |
| 703 | |
| 704 | if (softc->flags & SA_FLAG_INVALID) { |
| 705 | cam_periph_unlock(periph); |
| 706 | bp->b_error = ENXIO; |
| 707 | goto bad; |
| 708 | } |
| 709 | |
| 710 | if (softc->flags & SA_FLAG_TAPE_FROZEN) { |
| 711 | cam_periph_unlock(periph); |
| 712 | bp->b_error = EPERM; |
| 713 | goto bad; |
| 714 | } |
| 715 | |
| 716 | /* |
| 717 | * This should actually never occur as the write(2) |
| 718 | * system call traps attempts to write to a read-only |
| 719 | * file descriptor. |
| 720 | */ |
| 721 | if (bp->b_cmd == BUF_CMD_WRITE && softc->open_rdonly) { |
| 722 | cam_periph_unlock(periph); |
| 723 | bp->b_error = EBADF; |
| 724 | goto bad; |
| 725 | } |
| 726 | |
| 727 | if (softc->open_pending_mount) { |
| 728 | int error = samount(periph, 0, dev); |
| 729 | if (error) { |
| 730 | cam_periph_unlock(periph); |
| 731 | bp->b_error = ENXIO; |
| 732 | goto bad; |
| 733 | } |
| 734 | saprevent(periph, PR_PREVENT); |
| 735 | softc->open_pending_mount = 0; |
| 736 | } |
| 737 | |
| 738 | /* |
| 739 | * If it's a null transfer, return immediately |
| 740 | */ |
| 741 | if (bp->b_bcount == 0) { |
| 742 | cam_periph_unlock(periph); |
| 743 | goto done; |
| 744 | } |
| 745 | |
| 746 | /* valid request? */ |
| 747 | if (softc->flags & SA_FLAG_FIXED) { |
| 748 | /* |
| 749 | * Fixed block device. The byte count must |
| 750 | * be a multiple of our block size. |
| 751 | */ |
| 752 | if (((softc->blk_mask != ~0) && |
| 753 | ((bp->b_bcount & softc->blk_mask) != 0)) || |
| 754 | ((softc->blk_mask == ~0) && |
| 755 | ((bp->b_bcount % softc->min_blk) != 0))) { |
| 756 | xpt_print(periph->path, "Invalid request. Fixed block " |
| 757 | "device requests must be a multiple of %d bytes\n", |
| 758 | softc->min_blk); |
| 759 | cam_periph_unlock(periph); |
| 760 | bp->b_error = EINVAL; |
| 761 | goto bad; |
| 762 | } |
| 763 | } else if ((bp->b_bcount > softc->max_blk) || |
| 764 | (bp->b_bcount < softc->min_blk) || |
| 765 | (bp->b_bcount & softc->blk_mask) != 0) { |
| 766 | |
| 767 | xpt_print_path(periph->path); |
| 768 | kprintf("Invalid request. Variable block " |
| 769 | "device requests must be "); |
| 770 | if (softc->blk_mask != 0) { |
| 771 | kprintf("a multiple of %d ", (0x1 << softc->blk_gran)); |
| 772 | } |
| 773 | kprintf("between %d and %d bytes\n", softc->min_blk, |
| 774 | softc->max_blk); |
| 775 | cam_periph_unlock(periph); |
| 776 | bp->b_error = EINVAL; |
| 777 | goto bad; |
| 778 | } |
| 779 | |
| 780 | /* |
| 781 | * Place it at the end of the queue. |
| 782 | */ |
| 783 | bioq_insert_tail(&softc->bio_queue, bio); |
| 784 | softc->queue_count++; |
| 785 | #if 0 |
| 786 | CAM_DEBUG(periph->path, CAM_DEBUG_INFO, |
| 787 | ("sastrategy: queuing a %ld %s byte %s\n", bp->bio_bcount, |
| 788 | (softc->flags & SA_FLAG_FIXED)? "fixed" : "variable", |
| 789 | (bp->bio_cmd == BIO_READ)? "read" : "write")); |
| 790 | #endif |
| 791 | if (softc->queue_count > 1) { |
| 792 | CAM_DEBUG(periph->path, CAM_DEBUG_INFO, |
| 793 | ("sastrategy: queue count now %d\n", softc->queue_count)); |
| 794 | } |
| 795 | |
| 796 | /* |
| 797 | * Schedule ourselves for performing the work. |
| 798 | */ |
| 799 | xpt_schedule(periph, 1); |
| 800 | cam_periph_unlock(periph); |
| 801 | |
| 802 | return(0); |
| 803 | bad: |
| 804 | bp->b_flags |= B_ERROR; |
| 805 | done: |
| 806 | |
| 807 | /* |
| 808 | * Correctly set the buf to indicate a completed xfer |
| 809 | */ |
| 810 | bp->b_resid = bp->b_bcount; |
| 811 | biodone(bio); |
| 812 | return(0); |
| 813 | } |
| 814 | |
| 815 | |
| 816 | #define PENDING_MOUNT_CHECK(softc, periph, dev) \ |
| 817 | if (softc->open_pending_mount) { \ |
| 818 | error = samount(periph, 0, dev); \ |
| 819 | if (error) { \ |
| 820 | break; \ |
| 821 | } \ |
| 822 | saprevent(periph, PR_PREVENT); \ |
| 823 | softc->open_pending_mount = 0; \ |
| 824 | } |
| 825 | |
| 826 | static int |
| 827 | saioctl(struct dev_ioctl_args *ap) |
| 828 | { |
| 829 | cdev_t dev = ap->a_head.a_dev; |
| 830 | caddr_t addr = ap->a_data; |
| 831 | struct cam_periph *periph; |
| 832 | struct sa_softc *softc; |
| 833 | scsi_space_code spaceop; |
| 834 | int didholdperiph = 0; |
| 835 | int unit; |
| 836 | int mode; |
| 837 | int error = 0; |
| 838 | |
| 839 | unit = SAUNIT(dev); |
| 840 | mode = SAMODE(dev); |
| 841 | error = 0; /* shut up gcc */ |
| 842 | spaceop = 0; /* shut up gcc */ |
| 843 | |
| 844 | periph = cam_extend_get(saperiphs, unit); |
| 845 | if (periph == NULL) |
| 846 | return (ENXIO); |
| 847 | |
| 848 | cam_periph_lock(periph); |
| 849 | softc = (struct sa_softc *)periph->softc; |
| 850 | |
| 851 | /* |
| 852 | * Check for control mode accesses. We allow MTIOCGET and |
| 853 | * MTIOCERRSTAT (but need to be the only one open in order |
| 854 | * to clear latched status), and MTSETBSIZE, MTSETDNSTY |
| 855 | * and MTCOMP (but need to be the only one accessing this |
| 856 | * device to run those). |
| 857 | */ |
| 858 | |
| 859 | if (SA_IS_CTRL(dev)) { |
| 860 | switch (ap->a_cmd) { |
| 861 | case MTIOCGETEOTMODEL: |
| 862 | case MTIOCGET: |
| 863 | break; |
| 864 | case MTIOCERRSTAT: |
| 865 | /* |
| 866 | * If the periph isn't already locked, lock it |
| 867 | * so our MTIOCERRSTAT can reset latched error stats. |
| 868 | * |
| 869 | * If the periph is already locked, skip it because |
| 870 | * we're just getting status and it'll be up to the |
| 871 | * other thread that has this device open to do |
| 872 | * an MTIOCERRSTAT that would clear latched status. |
| 873 | */ |
| 874 | if ((periph->flags & CAM_PERIPH_LOCKED) == 0) { |
| 875 | error = cam_periph_hold(periph, PCATCH); |
| 876 | if (error != 0) { |
| 877 | return (error); |
| 878 | } |
| 879 | didholdperiph = 1; |
| 880 | } |
| 881 | break; |
| 882 | |
| 883 | case MTIOCTOP: |
| 884 | { |
| 885 | struct mtop *mt = (struct mtop *) addr; |
| 886 | |
| 887 | /* |
| 888 | * Check to make sure it's an OP we can perform |
| 889 | * with no media inserted. |
| 890 | */ |
| 891 | switch (mt->mt_op) { |
| 892 | case MTSETBSIZ: |
| 893 | case MTSETDNSTY: |
| 894 | case MTCOMP: |
| 895 | mt = NULL; |
| 896 | /* FALLTHROUGH */ |
| 897 | default: |
| 898 | break; |
| 899 | } |
| 900 | if (mt != NULL) { |
| 901 | break; |
| 902 | } |
| 903 | /* FALLTHROUGH */ |
| 904 | } |
| 905 | case MTIOCSETEOTMODEL: |
| 906 | /* |
| 907 | * We need to acquire the peripheral here rather |
| 908 | * than at open time because we are sharing writable |
| 909 | * access to data structures. |
| 910 | */ |
| 911 | error = cam_periph_hold(periph, PCATCH); |
| 912 | if (error != 0) { |
| 913 | return (error); |
| 914 | } |
| 915 | didholdperiph = 1; |
| 916 | break; |
| 917 | |
| 918 | default: |
| 919 | return (EINVAL); |
| 920 | } |
| 921 | } |
| 922 | |
| 923 | /* |
| 924 | * Find the device that the user is talking about |
| 925 | */ |
| 926 | switch (ap->a_cmd) { |
| 927 | case MTIOCGET: |
| 928 | { |
| 929 | struct mtget *g = (struct mtget *)addr; |
| 930 | |
| 931 | /* |
| 932 | * If this isn't the control mode device, actually go out |
| 933 | * and ask the drive again what it's set to. |
| 934 | */ |
| 935 | if (!SA_IS_CTRL(dev) && !softc->open_pending_mount) { |
| 936 | u_int8_t write_protect; |
| 937 | int comp_enabled, comp_supported; |
| 938 | error = sagetparams(periph, SA_PARAM_ALL, |
| 939 | &softc->media_blksize, &softc->media_density, |
| 940 | &softc->media_numblks, &softc->buffer_mode, |
| 941 | &write_protect, &softc->speed, &comp_supported, |
| 942 | &comp_enabled, &softc->comp_algorithm, NULL); |
| 943 | if (error) |
| 944 | break; |
| 945 | if (write_protect) |
| 946 | softc->flags |= SA_FLAG_TAPE_WP; |
| 947 | else |
| 948 | softc->flags &= ~SA_FLAG_TAPE_WP; |
| 949 | softc->flags &= ~(SA_FLAG_COMP_SUPP| |
| 950 | SA_FLAG_COMP_ENABLED|SA_FLAG_COMP_UNSUPP); |
| 951 | if (comp_supported) { |
| 952 | if (softc->saved_comp_algorithm == 0) |
| 953 | softc->saved_comp_algorithm = |
| 954 | softc->comp_algorithm; |
| 955 | softc->flags |= SA_FLAG_COMP_SUPP; |
| 956 | if (comp_enabled) |
| 957 | softc->flags |= SA_FLAG_COMP_ENABLED; |
| 958 | } else |
| 959 | softc->flags |= SA_FLAG_COMP_UNSUPP; |
| 960 | } |
| 961 | bzero(g, sizeof(struct mtget)); |
| 962 | g->mt_type = MT_ISAR; |
| 963 | if (softc->flags & SA_FLAG_COMP_UNSUPP) { |
| 964 | g->mt_comp = MT_COMP_UNSUPP; |
| 965 | g->mt_comp0 = MT_COMP_UNSUPP; |
| 966 | g->mt_comp1 = MT_COMP_UNSUPP; |
| 967 | g->mt_comp2 = MT_COMP_UNSUPP; |
| 968 | g->mt_comp3 = MT_COMP_UNSUPP; |
| 969 | } else { |
| 970 | if ((softc->flags & SA_FLAG_COMP_ENABLED) == 0) { |
| 971 | g->mt_comp = MT_COMP_DISABLED; |
| 972 | } else { |
| 973 | g->mt_comp = softc->comp_algorithm; |
| 974 | } |
| 975 | g->mt_comp0 = softc->comp_algorithm; |
| 976 | g->mt_comp1 = softc->comp_algorithm; |
| 977 | g->mt_comp2 = softc->comp_algorithm; |
| 978 | g->mt_comp3 = softc->comp_algorithm; |
| 979 | } |
| 980 | g->mt_density = softc->media_density; |
| 981 | g->mt_density0 = softc->media_density; |
| 982 | g->mt_density1 = softc->media_density; |
| 983 | g->mt_density2 = softc->media_density; |
| 984 | g->mt_density3 = softc->media_density; |
| 985 | g->mt_blksiz = softc->media_blksize; |
| 986 | g->mt_blksiz0 = softc->media_blksize; |
| 987 | g->mt_blksiz1 = softc->media_blksize; |
| 988 | g->mt_blksiz2 = softc->media_blksize; |
| 989 | g->mt_blksiz3 = softc->media_blksize; |
| 990 | g->mt_fileno = softc->fileno; |
| 991 | g->mt_blkno = softc->blkno; |
| 992 | g->mt_dsreg = (short) softc->dsreg; |
| 993 | /* |
| 994 | * Yes, we know that this is likely to overflow |
| 995 | */ |
| 996 | if (softc->last_resid_was_io) { |
| 997 | if ((g->mt_resid = (short) softc->last_io_resid) != 0) { |
| 998 | if (SA_IS_CTRL(dev) == 0 || didholdperiph) { |
| 999 | softc->last_io_resid = 0; |
| 1000 | } |
| 1001 | } |
| 1002 | } else { |
| 1003 | if ((g->mt_resid = (short)softc->last_ctl_resid) != 0) { |
| 1004 | if (SA_IS_CTRL(dev) == 0 || didholdperiph) { |
| 1005 | softc->last_ctl_resid = 0; |
| 1006 | } |
| 1007 | } |
| 1008 | } |
| 1009 | error = 0; |
| 1010 | break; |
| 1011 | } |
| 1012 | case MTIOCERRSTAT: |
| 1013 | { |
| 1014 | struct scsi_tape_errors *sep = |
| 1015 | &((union mterrstat *)addr)->scsi_errstat; |
| 1016 | |
| 1017 | CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, |
| 1018 | ("saioctl: MTIOCERRSTAT\n")); |
| 1019 | |
| 1020 | bzero(sep, sizeof(*sep)); |
| 1021 | sep->io_resid = softc->last_io_resid; |
| 1022 | bcopy((caddr_t) &softc->last_io_sense, sep->io_sense, |
| 1023 | sizeof (sep->io_sense)); |
| 1024 | bcopy((caddr_t) &softc->last_io_cdb, sep->io_cdb, |
| 1025 | sizeof (sep->io_cdb)); |
| 1026 | sep->ctl_resid = softc->last_ctl_resid; |
| 1027 | bcopy((caddr_t) &softc->last_ctl_sense, sep->ctl_sense, |
| 1028 | sizeof (sep->ctl_sense)); |
| 1029 | bcopy((caddr_t) &softc->last_ctl_cdb, sep->ctl_cdb, |
| 1030 | sizeof (sep->ctl_cdb)); |
| 1031 | |
| 1032 | if ((SA_IS_CTRL(dev) == 0 && softc->open_pending_mount) || |
| 1033 | didholdperiph) |
| 1034 | bzero((caddr_t) &softc->errinfo, |
| 1035 | sizeof (softc->errinfo)); |
| 1036 | error = 0; |
| 1037 | break; |
| 1038 | } |
| 1039 | case MTIOCTOP: |
| 1040 | { |
| 1041 | struct mtop *mt; |
| 1042 | int count; |
| 1043 | |
| 1044 | PENDING_MOUNT_CHECK(softc, periph, dev); |
| 1045 | |
| 1046 | mt = (struct mtop *)addr; |
| 1047 | |
| 1048 | CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, |
| 1049 | ("saioctl: op=0x%x count=0x%x\n", |
| 1050 | mt->mt_op, mt->mt_count)); |
| 1051 | |
| 1052 | count = mt->mt_count; |
| 1053 | switch (mt->mt_op) { |
| 1054 | case MTWEOF: /* write an end-of-file marker */ |
| 1055 | /* |
| 1056 | * We don't need to clear the SA_FLAG_TAPE_WRITTEN |
| 1057 | * flag because by keeping track of filemarks |
| 1058 | * we have last written we know ehether or not |
| 1059 | * we need to write more when we close the device. |
| 1060 | */ |
| 1061 | error = sawritefilemarks(periph, count, FALSE); |
| 1062 | break; |
| 1063 | case MTWSS: /* write a setmark */ |
| 1064 | error = sawritefilemarks(periph, count, TRUE); |
| 1065 | break; |
| 1066 | case MTBSR: /* backward space record */ |
| 1067 | case MTFSR: /* forward space record */ |
| 1068 | case MTBSF: /* backward space file */ |
| 1069 | case MTFSF: /* forward space file */ |
| 1070 | case MTBSS: /* backward space setmark */ |
| 1071 | case MTFSS: /* forward space setmark */ |
| 1072 | case MTEOD: /* space to end of recorded medium */ |
| 1073 | { |
| 1074 | int nmarks; |
| 1075 | |
| 1076 | spaceop = SS_FILEMARKS; |
| 1077 | nmarks = softc->filemarks; |
| 1078 | error = sacheckeod(periph); |
| 1079 | if (error) { |
| 1080 | xpt_print(periph->path, |
| 1081 | "EOD check prior to spacing failed\n"); |
| 1082 | softc->flags |= SA_FLAG_EIO_PENDING; |
| 1083 | break; |
| 1084 | } |
| 1085 | nmarks -= softc->filemarks; |
| 1086 | switch(mt->mt_op) { |
| 1087 | case MTBSR: |
| 1088 | count = -count; |
| 1089 | /* FALLTHROUGH */ |
| 1090 | case MTFSR: |
| 1091 | spaceop = SS_BLOCKS; |
| 1092 | break; |
| 1093 | case MTBSF: |
| 1094 | count = -count; |
| 1095 | /* FALLTHROUGH */ |
| 1096 | case MTFSF: |
| 1097 | break; |
| 1098 | case MTBSS: |
| 1099 | count = -count; |
| 1100 | /* FALLTHROUGH */ |
| 1101 | case MTFSS: |
| 1102 | spaceop = SS_SETMARKS; |
| 1103 | break; |
| 1104 | case MTEOD: |
| 1105 | spaceop = SS_EOD; |
| 1106 | count = 0; |
| 1107 | nmarks = 0; |
| 1108 | break; |
| 1109 | default: |
| 1110 | error = EINVAL; |
| 1111 | break; |
| 1112 | } |
| 1113 | if (error) |
| 1114 | break; |
| 1115 | |
| 1116 | nmarks = softc->filemarks; |
| 1117 | /* |
| 1118 | * XXX: Why are we checking again? |
| 1119 | */ |
| 1120 | error = sacheckeod(periph); |
| 1121 | if (error) |
| 1122 | break; |
| 1123 | nmarks -= softc->filemarks; |
| 1124 | error = saspace(periph, count - nmarks, spaceop); |
| 1125 | /* |
| 1126 | * At this point, clear that we've written the tape |
| 1127 | * and that we've written any filemarks. We really |
| 1128 | * don't know what the applications wishes to do next- |
| 1129 | * the sacheckeod's will make sure we terminated the |
| 1130 | * tape correctly if we'd been writing, but the next |
| 1131 | * action the user application takes will set again |
| 1132 | * whether we need to write filemarks. |
| 1133 | */ |
| 1134 | softc->flags &= |
| 1135 | ~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN); |
| 1136 | softc->filemarks = 0; |
| 1137 | break; |
| 1138 | } |
| 1139 | case MTREW: /* rewind */ |
| 1140 | PENDING_MOUNT_CHECK(softc, periph, dev); |
| 1141 | sacheckeod(periph); |
| 1142 | error = sarewind(periph); |
| 1143 | /* see above */ |
| 1144 | softc->flags &= |
| 1145 | ~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN); |
| 1146 | softc->flags &= ~SA_FLAG_ERR_PENDING; |
| 1147 | softc->filemarks = 0; |
| 1148 | break; |
| 1149 | case MTERASE: /* erase */ |
| 1150 | PENDING_MOUNT_CHECK(softc, periph, dev); |
| 1151 | error = saerase(periph, count); |
| 1152 | softc->flags &= |
| 1153 | ~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN); |
| 1154 | softc->flags &= ~SA_FLAG_ERR_PENDING; |
| 1155 | break; |
| 1156 | case MTRETENS: /* re-tension tape */ |
| 1157 | PENDING_MOUNT_CHECK(softc, periph, dev); |
| 1158 | error = saretension(periph); |
| 1159 | softc->flags &= |
| 1160 | ~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN); |
| 1161 | softc->flags &= ~SA_FLAG_ERR_PENDING; |
| 1162 | break; |
| 1163 | case MTOFFL: /* rewind and put the drive offline */ |
| 1164 | |
| 1165 | PENDING_MOUNT_CHECK(softc, periph, dev); |
| 1166 | |
| 1167 | sacheckeod(periph); |
| 1168 | /* see above */ |
| 1169 | softc->flags &= ~SA_FLAG_TAPE_WRITTEN; |
| 1170 | softc->filemarks = 0; |
| 1171 | |
| 1172 | error = sarewind(periph); |
| 1173 | /* clear the frozen flag anyway */ |
| 1174 | softc->flags &= ~SA_FLAG_TAPE_FROZEN; |
| 1175 | |
| 1176 | /* |
| 1177 | * Be sure to allow media removal before ejecting. |
| 1178 | */ |
| 1179 | |
| 1180 | saprevent(periph, PR_ALLOW); |
| 1181 | if (error == 0) { |
| 1182 | error = saloadunload(periph, FALSE); |
| 1183 | if (error == 0) { |
| 1184 | softc->flags &= ~SA_FLAG_TAPE_MOUNTED; |
| 1185 | } |
| 1186 | } |
| 1187 | break; |
| 1188 | |
| 1189 | case MTNOP: /* no operation, sets status only */ |
| 1190 | case MTCACHE: /* enable controller cache */ |
| 1191 | case MTNOCACHE: /* disable controller cache */ |
| 1192 | error = 0; |
| 1193 | break; |
| 1194 | |
| 1195 | case MTSETBSIZ: /* Set block size for device */ |
| 1196 | |
| 1197 | PENDING_MOUNT_CHECK(softc, periph, dev); |
| 1198 | |
| 1199 | error = sasetparams(periph, SA_PARAM_BLOCKSIZE, count, |
| 1200 | 0, 0, 0); |
| 1201 | if (error == 0) { |
| 1202 | softc->last_media_blksize = |
| 1203 | softc->media_blksize; |
| 1204 | softc->media_blksize = count; |
| 1205 | if (count) { |
| 1206 | softc->flags |= SA_FLAG_FIXED; |
| 1207 | if (powerof2(count)) { |
| 1208 | softc->blk_shift = |
| 1209 | ffs(count) - 1; |
| 1210 | softc->blk_mask = count - 1; |
| 1211 | } else { |
| 1212 | softc->blk_mask = ~0; |
| 1213 | softc->blk_shift = 0; |
| 1214 | } |
| 1215 | /* |
| 1216 | * Make the user's desire 'persistent'. |
| 1217 | */ |
| 1218 | softc->quirks &= ~SA_QUIRK_VARIABLE; |
| 1219 | softc->quirks |= SA_QUIRK_FIXED; |
| 1220 | } else { |
| 1221 | softc->flags &= ~SA_FLAG_FIXED; |
| 1222 | if (softc->max_blk == 0) { |
| 1223 | softc->max_blk = ~0; |
| 1224 | } |
| 1225 | softc->blk_shift = 0; |
| 1226 | if (softc->blk_gran != 0) { |
| 1227 | softc->blk_mask = |
| 1228 | softc->blk_gran - 1; |
| 1229 | } else { |
| 1230 | softc->blk_mask = 0; |
| 1231 | } |
| 1232 | /* |
| 1233 | * Make the user's desire 'persistent'. |
| 1234 | */ |
| 1235 | softc->quirks |= SA_QUIRK_VARIABLE; |
| 1236 | softc->quirks &= ~SA_QUIRK_FIXED; |
| 1237 | } |
| 1238 | } |
| 1239 | break; |
| 1240 | case MTSETDNSTY: /* Set density for device and mode */ |
| 1241 | PENDING_MOUNT_CHECK(softc, periph, dev); |
| 1242 | |
| 1243 | if (count > UCHAR_MAX) { |
| 1244 | error = EINVAL; |
| 1245 | break; |
| 1246 | } else { |
| 1247 | error = sasetparams(periph, SA_PARAM_DENSITY, |
| 1248 | 0, count, 0, 0); |
| 1249 | } |
| 1250 | break; |
| 1251 | case MTCOMP: /* enable compression */ |
| 1252 | PENDING_MOUNT_CHECK(softc, periph, dev); |
| 1253 | /* |
| 1254 | * Some devices don't support compression, and |
| 1255 | * don't like it if you ask them for the |
| 1256 | * compression page. |
| 1257 | */ |
| 1258 | if ((softc->quirks & SA_QUIRK_NOCOMP) || |
| 1259 | (softc->flags & SA_FLAG_COMP_UNSUPP)) { |
| 1260 | error = ENODEV; |
| 1261 | break; |
| 1262 | } |
| 1263 | error = sasetparams(periph, SA_PARAM_COMPRESSION, |
| 1264 | 0, 0, count, SF_NO_PRINT); |
| 1265 | break; |
| 1266 | default: |
| 1267 | error = EINVAL; |
| 1268 | } |
| 1269 | break; |
| 1270 | } |
| 1271 | case MTIOCIEOT: |
| 1272 | case MTIOCEEOT: |
| 1273 | error = 0; |
| 1274 | break; |
| 1275 | case MTIOCRDSPOS: |
| 1276 | PENDING_MOUNT_CHECK(softc, periph, dev); |
| 1277 | error = sardpos(periph, 0, (u_int32_t *) addr); |
| 1278 | break; |
| 1279 | case MTIOCRDHPOS: |
| 1280 | PENDING_MOUNT_CHECK(softc, periph, dev); |
| 1281 | error = sardpos(periph, 1, (u_int32_t *) addr); |
| 1282 | break; |
| 1283 | case MTIOCSLOCATE: |
| 1284 | PENDING_MOUNT_CHECK(softc, periph, dev); |
| 1285 | error = sasetpos(periph, 0, (u_int32_t *) addr); |
| 1286 | break; |
| 1287 | case MTIOCHLOCATE: |
| 1288 | PENDING_MOUNT_CHECK(softc, periph, dev); |
| 1289 | error = sasetpos(periph, 1, (u_int32_t *) addr); |
| 1290 | break; |
| 1291 | case MTIOCGETEOTMODEL: |
| 1292 | error = 0; |
| 1293 | if (softc->quirks & SA_QUIRK_1FM) |
| 1294 | mode = 1; |
| 1295 | else |
| 1296 | mode = 2; |
| 1297 | *((u_int32_t *) addr) = mode; |
| 1298 | break; |
| 1299 | case MTIOCSETEOTMODEL: |
| 1300 | error = 0; |
| 1301 | switch (*((u_int32_t *) addr)) { |
| 1302 | case 1: |
| 1303 | softc->quirks &= ~SA_QUIRK_2FM; |
| 1304 | softc->quirks |= SA_QUIRK_1FM; |
| 1305 | break; |
| 1306 | case 2: |
| 1307 | softc->quirks &= ~SA_QUIRK_1FM; |
| 1308 | softc->quirks |= SA_QUIRK_2FM; |
| 1309 | break; |
| 1310 | default: |
| 1311 | error = EINVAL; |
| 1312 | break; |
| 1313 | } |
| 1314 | break; |
| 1315 | default: |
| 1316 | error = cam_periph_ioctl(periph, ap->a_cmd, addr, saerror); |
| 1317 | break; |
| 1318 | } |
| 1319 | |
| 1320 | /* |
| 1321 | * Check to see if we cleared a frozen state |
| 1322 | */ |
| 1323 | if (error == 0 && (softc->flags & SA_FLAG_TAPE_FROZEN)) { |
| 1324 | switch(ap->a_cmd) { |
| 1325 | case MTIOCRDSPOS: |
| 1326 | case MTIOCRDHPOS: |
| 1327 | case MTIOCSLOCATE: |
| 1328 | case MTIOCHLOCATE: |
| 1329 | softc->fileno = (daddr_t) -1; |
| 1330 | softc->blkno = (daddr_t) -1; |
| 1331 | softc->flags &= ~SA_FLAG_TAPE_FROZEN; |
| 1332 | xpt_print(periph->path, |
| 1333 | "tape state now unfrozen.\n"); |
| 1334 | break; |
| 1335 | default: |
| 1336 | break; |
| 1337 | } |
| 1338 | } |
| 1339 | if (didholdperiph) |
| 1340 | cam_periph_unhold(periph, 1); |
| 1341 | else |
| 1342 | cam_periph_unlock(periph); |
| 1343 | return (error); |
| 1344 | } |
| 1345 | |
| 1346 | static void |
| 1347 | sainit(void) |
| 1348 | { |
| 1349 | cam_status status; |
| 1350 | |
| 1351 | /* |
| 1352 | * Create our extend array for storing the devices we attach to. |
| 1353 | */ |
| 1354 | saperiphs = cam_extend_new(); |
| 1355 | if (saperiphs == NULL) { |
| 1356 | kprintf("sa: Failed to alloc extend array!\n"); |
| 1357 | return; |
| 1358 | } |
| 1359 | |
| 1360 | /* |
| 1361 | * Install a global async callback. |
| 1362 | */ |
| 1363 | status = xpt_register_async(AC_FOUND_DEVICE, saasync, NULL, NULL); |
| 1364 | |
| 1365 | if (status != CAM_REQ_CMP) { |
| 1366 | kprintf("sa: Failed to attach master async callback " |
| 1367 | "due to status 0x%x!\n", status); |
| 1368 | } |
| 1369 | } |
| 1370 | |
| 1371 | static void |
| 1372 | saoninvalidate(struct cam_periph *periph) |
| 1373 | { |
| 1374 | struct sa_softc *softc; |
| 1375 | struct buf *q_bp; |
| 1376 | struct bio *q_bio; |
| 1377 | |
| 1378 | softc = (struct sa_softc *)periph->softc; |
| 1379 | |
| 1380 | /* |
| 1381 | * De-register any async callbacks. |
| 1382 | */ |
| 1383 | xpt_register_async(0, saasync, periph, periph->path); |
| 1384 | |
| 1385 | softc->flags |= SA_FLAG_INVALID; |
| 1386 | |
| 1387 | /* |
| 1388 | * Return all queued I/O with ENXIO. |
| 1389 | * XXX Handle any transactions queued to the card |
| 1390 | * with XPT_ABORT_CCB. |
| 1391 | */ |
| 1392 | while ((q_bio = bioq_first(&softc->bio_queue)) != NULL){ |
| 1393 | bioq_remove(&softc->bio_queue, q_bio); |
| 1394 | q_bp = q_bio->bio_buf; |
| 1395 | q_bp->b_resid = q_bp->b_bcount; |
| 1396 | q_bp->b_error = ENXIO; |
| 1397 | q_bp->b_flags |= B_ERROR; |
| 1398 | biodone(q_bio); |
| 1399 | } |
| 1400 | softc->queue_count = 0; |
| 1401 | |
| 1402 | xpt_print(periph->path, "lost device\n"); |
| 1403 | |
| 1404 | } |
| 1405 | |
| 1406 | static void |
| 1407 | sacleanup(struct cam_periph *periph) |
| 1408 | { |
| 1409 | struct sa_softc *softc; |
| 1410 | |
| 1411 | softc = (struct sa_softc *)periph->softc; |
| 1412 | |
| 1413 | devstat_remove_entry(&softc->device_stats); |
| 1414 | |
| 1415 | cam_extend_release(saperiphs, periph->unit_number); |
| 1416 | xpt_print(periph->path, "removing device entry\n"); |
| 1417 | kprintf("devfs: PLEASE check that only the right scsi sa devices were removed!!!!\n"); |
| 1418 | dev_ops_remove_minor(&sa_ops, /*SA_UNITMASK,*/ SA_UNIT(periph->unit_number)); |
| 1419 | kfree(softc, M_SCSISA); |
| 1420 | } |
| 1421 | |
| 1422 | static void |
| 1423 | saasync(void *callback_arg, u_int32_t code, |
| 1424 | struct cam_path *path, void *arg) |
| 1425 | { |
| 1426 | struct cam_periph *periph; |
| 1427 | |
| 1428 | periph = (struct cam_periph *)callback_arg; |
| 1429 | switch (code) { |
| 1430 | case AC_FOUND_DEVICE: |
| 1431 | { |
| 1432 | struct ccb_getdev *cgd; |
| 1433 | cam_status status; |
| 1434 | |
| 1435 | cgd = (struct ccb_getdev *)arg; |
| 1436 | if (cgd == NULL) |
| 1437 | break; |
| 1438 | |
| 1439 | if (SID_TYPE(&cgd->inq_data) != T_SEQUENTIAL) |
| 1440 | break; |
| 1441 | |
| 1442 | /* |
| 1443 | * Allocate a peripheral instance for |
| 1444 | * this device and start the probe |
| 1445 | * process. |
| 1446 | */ |
| 1447 | status = cam_periph_alloc(saregister, saoninvalidate, |
| 1448 | sacleanup, sastart, |
| 1449 | "sa", CAM_PERIPH_BIO, cgd->ccb_h.path, |
| 1450 | saasync, AC_FOUND_DEVICE, cgd); |
| 1451 | |
| 1452 | if (status != CAM_REQ_CMP |
| 1453 | && status != CAM_REQ_INPROG) |
| 1454 | kprintf("saasync: Unable to probe new device " |
| 1455 | "due to status 0x%x\n", status); |
| 1456 | break; |
| 1457 | } |
| 1458 | default: |
| 1459 | cam_periph_async(periph, code, path, arg); |
| 1460 | break; |
| 1461 | } |
| 1462 | } |
| 1463 | |
| 1464 | static cam_status |
| 1465 | saregister(struct cam_periph *periph, void *arg) |
| 1466 | { |
| 1467 | struct sa_softc *softc; |
| 1468 | struct ccb_getdev *cgd; |
| 1469 | caddr_t match; |
| 1470 | int i; |
| 1471 | |
| 1472 | cgd = (struct ccb_getdev *)arg; |
| 1473 | if (periph == NULL) { |
| 1474 | kprintf("saregister: periph was NULL!!\n"); |
| 1475 | return (CAM_REQ_CMP_ERR); |
| 1476 | } |
| 1477 | |
| 1478 | if (cgd == NULL) { |
| 1479 | kprintf("saregister: no getdev CCB, can't register device\n"); |
| 1480 | return (CAM_REQ_CMP_ERR); |
| 1481 | } |
| 1482 | |
| 1483 | softc = kmalloc(sizeof (*softc), M_SCSISA, M_INTWAIT | M_ZERO); |
| 1484 | softc->scsi_rev = SID_ANSI_REV(&cgd->inq_data); |
| 1485 | softc->state = SA_STATE_NORMAL; |
| 1486 | softc->fileno = (daddr_t) -1; |
| 1487 | softc->blkno = (daddr_t) -1; |
| 1488 | |
| 1489 | bioq_init(&softc->bio_queue); |
| 1490 | periph->softc = softc; |
| 1491 | cam_extend_set(saperiphs, periph->unit_number, periph); |
| 1492 | |
| 1493 | /* |
| 1494 | * See if this device has any quirks. |
| 1495 | */ |
| 1496 | match = cam_quirkmatch((caddr_t)&cgd->inq_data, |
| 1497 | (caddr_t)sa_quirk_table, |
| 1498 | sizeof(sa_quirk_table)/sizeof(*sa_quirk_table), |
| 1499 | sizeof(*sa_quirk_table), scsi_inquiry_match); |
| 1500 | |
| 1501 | if (match != NULL) { |
| 1502 | softc->quirks = ((struct sa_quirk_entry *)match)->quirks; |
| 1503 | softc->last_media_blksize = |
| 1504 | ((struct sa_quirk_entry *)match)->prefblk; |
| 1505 | #ifdef CAMDEBUG |
| 1506 | xpt_print(periph->path, "found quirk entry %d\n", |
| 1507 | (int) (((struct sa_quirk_entry *) match) - sa_quirk_table)); |
| 1508 | #endif |
| 1509 | } else |
| 1510 | softc->quirks = SA_QUIRK_NONE; |
| 1511 | |
| 1512 | /* |
| 1513 | * The SA driver supports a blocksize, but we don't know the |
| 1514 | * blocksize until we media is inserted. So, set a flag to |
| 1515 | * indicate that the blocksize is unavailable right now. |
| 1516 | */ |
| 1517 | cam_periph_unlock(periph); |
| 1518 | devstat_add_entry(&softc->device_stats, "sa", periph->unit_number, 0, |
| 1519 | DEVSTAT_BS_UNAVAILABLE, SID_TYPE(&cgd->inq_data) | |
| 1520 | DEVSTAT_TYPE_IF_SCSI, DEVSTAT_PRIORITY_TAPE); |
| 1521 | |
| 1522 | make_dev(&sa_ops, SAMINOR(SA_CTLDEV, |
| 1523 | periph->unit_number, 0, SA_ATYPE_R), UID_ROOT, GID_OPERATOR, |
| 1524 | 0660, "%s%d.ctl", periph->periph_name, periph->unit_number); |
| 1525 | |
| 1526 | make_dev(&sa_ops, SAMINOR(SA_NOT_CTLDEV, |
| 1527 | periph->unit_number, 0, SA_ATYPE_R), UID_ROOT, GID_OPERATOR, |
| 1528 | 0660, "%s%d", periph->periph_name, periph->unit_number); |
| 1529 | |
| 1530 | make_dev(&sa_ops, SAMINOR(SA_NOT_CTLDEV, |
| 1531 | periph->unit_number, 0, SA_ATYPE_NR), UID_ROOT, GID_OPERATOR, |
| 1532 | 0660, "n%s%d", periph->periph_name, periph->unit_number); |
| 1533 | |
| 1534 | make_dev(&sa_ops, SAMINOR(SA_NOT_CTLDEV, |
| 1535 | periph->unit_number, 0, SA_ATYPE_ER), UID_ROOT, GID_OPERATOR, |
| 1536 | 0660, "e%s%d", periph->periph_name, periph->unit_number); |
| 1537 | |
| 1538 | for (i = 0; i < SA_NUM_MODES; i++) { |
| 1539 | |
| 1540 | make_dev(&sa_ops, |
| 1541 | SAMINOR(SA_NOT_CTLDEV, periph->unit_number, i, SA_ATYPE_R), |
| 1542 | UID_ROOT, GID_OPERATOR, 0660, "%s%d.%d", |
| 1543 | periph->periph_name, periph->unit_number, i); |
| 1544 | |
| 1545 | make_dev(&sa_ops, |
| 1546 | SAMINOR(SA_NOT_CTLDEV, periph->unit_number, i, SA_ATYPE_NR), |
| 1547 | UID_ROOT, GID_OPERATOR, 0660, "n%s%d.%d", |
| 1548 | periph->periph_name, periph->unit_number, i); |
| 1549 | |
| 1550 | |
| 1551 | make_dev(&sa_ops, |
| 1552 | SAMINOR(SA_NOT_CTLDEV, periph->unit_number, i, SA_ATYPE_ER), |
| 1553 | UID_ROOT, GID_OPERATOR, 0660, "e%s%d.%d", |
| 1554 | periph->periph_name, periph->unit_number, i); |
| 1555 | } |
| 1556 | cam_periph_lock(periph); |
| 1557 | |
| 1558 | /* |
| 1559 | * Add an async callback so that we get |
| 1560 | * notified if this device goes away. |
| 1561 | */ |
| 1562 | xpt_register_async(AC_LOST_DEVICE, saasync, periph, periph->path); |
| 1563 | |
| 1564 | xpt_announce_periph(periph, NULL); |
| 1565 | |
| 1566 | return (CAM_REQ_CMP); |
| 1567 | } |
| 1568 | |
| 1569 | static void |
| 1570 | sastart(struct cam_periph *periph, union ccb *start_ccb) |
| 1571 | { |
| 1572 | struct sa_softc *softc; |
| 1573 | |
| 1574 | softc = (struct sa_softc *)periph->softc; |
| 1575 | |
| 1576 | CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sastart\n")); |
| 1577 | |
| 1578 | |
| 1579 | switch (softc->state) { |
| 1580 | case SA_STATE_NORMAL: |
| 1581 | { |
| 1582 | /* Pull a buffer from the queue and get going on it */ |
| 1583 | struct buf *bp; |
| 1584 | struct bio *bio; |
| 1585 | |
| 1586 | /* |
| 1587 | * See if there is a buf with work for us to do.. |
| 1588 | */ |
| 1589 | bio = bioq_first(&softc->bio_queue); |
| 1590 | if (periph->immediate_priority <= periph->pinfo.priority) { |
| 1591 | CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE, |
| 1592 | ("queuing for immediate ccb\n")); |
| 1593 | Set_CCB_Type(start_ccb, SA_CCB_WAITING); |
| 1594 | SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, |
| 1595 | periph_links.sle); |
| 1596 | periph->immediate_priority = CAM_PRIORITY_NONE; |
| 1597 | wakeup(&periph->ccb_list); |
| 1598 | } else if (bio == NULL) { |
| 1599 | xpt_release_ccb(start_ccb); |
| 1600 | } else if ((softc->flags & SA_FLAG_ERR_PENDING) != 0) { |
| 1601 | struct bio *done_bio; |
| 1602 | again: |
| 1603 | softc->queue_count--; |
| 1604 | bioq_remove(&softc->bio_queue, bio); |
| 1605 | bp = bio->bio_buf; |
| 1606 | bp->b_resid = bp->b_bcount; |
| 1607 | done_bio = bio; |
| 1608 | if ((softc->flags & SA_FLAG_EOM_PENDING) != 0) { |
| 1609 | /* |
| 1610 | * We now just clear errors in this case |
| 1611 | * and let the residual be the notifier. |
| 1612 | */ |
| 1613 | bp->b_error = 0; |
| 1614 | } else if ((softc->flags & SA_FLAG_EOF_PENDING) != 0) { |
| 1615 | /* |
| 1616 | * This can only happen if we're reading |
| 1617 | * in fixed length mode. In this case, |
| 1618 | * we dump the rest of the list the |
| 1619 | * same way. |
| 1620 | */ |
| 1621 | bp->b_error = 0; |
| 1622 | if (bioq_first(&softc->bio_queue) != NULL) { |
| 1623 | biodone(done_bio); |
| 1624 | goto again; |
| 1625 | } |
| 1626 | } else if ((softc->flags & SA_FLAG_EIO_PENDING) != 0) { |
| 1627 | bp->b_error = EIO; |
| 1628 | bp->b_flags |= B_ERROR; |
| 1629 | } |
| 1630 | bio = bioq_first(&softc->bio_queue); |
| 1631 | /* |
| 1632 | * Only if we have no other buffers queued up |
| 1633 | * do we clear the pending error flag. |
| 1634 | */ |
| 1635 | if (bio == NULL) |
| 1636 | softc->flags &= ~SA_FLAG_ERR_PENDING; |
| 1637 | CAM_DEBUG(periph->path, CAM_DEBUG_INFO, |
| 1638 | ("sastart- ERR_PENDING now 0x%x, bio is %sNULL, " |
| 1639 | "%d more buffers queued up\n", |
| 1640 | (softc->flags & SA_FLAG_ERR_PENDING), |
| 1641 | (bio != NULL)? "not " : " ", softc->queue_count)); |
| 1642 | xpt_release_ccb(start_ccb); |
| 1643 | biodone(done_bio); |
| 1644 | } else { |
| 1645 | u_int32_t length; |
| 1646 | |
| 1647 | bioq_remove(&softc->bio_queue, bio); |
| 1648 | bp = bio->bio_buf; |
| 1649 | softc->queue_count--; |
| 1650 | |
| 1651 | if ((softc->flags & SA_FLAG_FIXED) != 0) { |
| 1652 | if (softc->blk_shift != 0) { |
| 1653 | length = |
| 1654 | bp->b_bcount >> softc->blk_shift; |
| 1655 | } else if (softc->media_blksize != 0) { |
| 1656 | length = |
| 1657 | bp->b_bcount / softc->media_blksize; |
| 1658 | } else { |
| 1659 | bp->b_error = EIO; |
| 1660 | xpt_print(periph->path, "zero blocksize" |
| 1661 | " for FIXED length writes?\n"); |
| 1662 | biodone(bio); |
| 1663 | break; |
| 1664 | } |
| 1665 | #if 0 |
| 1666 | CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_INFO, |
| 1667 | ("issuing a %d fixed record %s\n", |
| 1668 | length, (bp->bio_cmd == BIO_READ)? "read" : |
| 1669 | "write")); |
| 1670 | #endif |
| 1671 | } else { |
| 1672 | length = bp->b_bcount; |
| 1673 | #if 0 |
| 1674 | CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_INFO, |
| 1675 | ("issuing a %d variable byte %s\n", |
| 1676 | length, (bp->bio_cmd == BIO_READ)? "read" : |
| 1677 | "write")); |
| 1678 | #endif |
| 1679 | } |
| 1680 | devstat_start_transaction(&softc->device_stats); |
| 1681 | /* |
| 1682 | * Some people have theorized that we should |
| 1683 | * suppress illegal length indication if we are |
| 1684 | * running in variable block mode so that we don't |
| 1685 | * have to request sense every time our requested |
| 1686 | * block size is larger than the written block. |
| 1687 | * The residual information from the ccb allows |
| 1688 | * us to identify this situation anyway. The only |
| 1689 | * problem with this is that we will not get |
| 1690 | * information about blocks that are larger than |
| 1691 | * our read buffer unless we set the block size |
| 1692 | * in the mode page to something other than 0. |
| 1693 | * |
| 1694 | * I believe that this is a non-issue. If user apps |
| 1695 | * don't adjust their read size to match our record |
| 1696 | * size, that's just life. Anyway, the typical usage |
| 1697 | * would be to issue, e.g., 64KB reads and occasionally |
| 1698 | * have to do deal with 512 byte or 1KB intermediate |
| 1699 | * records. |
| 1700 | */ |
| 1701 | softc->dsreg = (bp->b_cmd == BUF_CMD_READ) ? |
| 1702 | MTIO_DSREG_RD : MTIO_DSREG_WR; |
| 1703 | scsi_sa_read_write(&start_ccb->csio, 0, sadone, |
| 1704 | MSG_SIMPLE_Q_TAG, (bp->b_cmd == BUF_CMD_READ) != 0, |
| 1705 | FALSE, (softc->flags & SA_FLAG_FIXED) != 0, |
| 1706 | length, bp->b_data, bp->b_bcount, SSD_FULL_SIZE, |
| 1707 | IO_TIMEOUT); |
| 1708 | start_ccb->ccb_h.ccb_pflags &= ~SA_POSITION_UPDATED; |
| 1709 | Set_CCB_Type(start_ccb, SA_CCB_BUFFER_IO); |
| 1710 | start_ccb->ccb_h.ccb_bio = bio; |
| 1711 | bio = bioq_first(&softc->bio_queue); |
| 1712 | xpt_action(start_ccb); |
| 1713 | } |
| 1714 | |
| 1715 | if (bio != NULL) { |
| 1716 | /* Have more work to do, so ensure we stay scheduled */ |
| 1717 | xpt_schedule(periph, 1); |
| 1718 | } |
| 1719 | break; |
| 1720 | } |
| 1721 | case SA_STATE_ABNORMAL: |
| 1722 | default: |
| 1723 | panic("state 0x%x in sastart", softc->state); |
| 1724 | break; |
| 1725 | } |
| 1726 | } |
| 1727 | |
| 1728 | |
| 1729 | static void |
| 1730 | sadone(struct cam_periph *periph, union ccb *done_ccb) |
| 1731 | { |
| 1732 | struct sa_softc *softc; |
| 1733 | struct ccb_scsiio *csio; |
| 1734 | |
| 1735 | softc = (struct sa_softc *)periph->softc; |
| 1736 | csio = &done_ccb->csio; |
| 1737 | switch (CCB_Type(csio)) { |
| 1738 | case SA_CCB_BUFFER_IO: |
| 1739 | { |
| 1740 | struct buf *bp; |
| 1741 | struct bio *bio; |
| 1742 | int error; |
| 1743 | |
| 1744 | softc->dsreg = MTIO_DSREG_REST; |
| 1745 | bio = (struct bio *)done_ccb->ccb_h.ccb_bio; |
| 1746 | bp = bio->bio_buf; |
| 1747 | error = 0; |
| 1748 | if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { |
| 1749 | if ((error = saerror(done_ccb, 0, 0)) == ERESTART) { |
| 1750 | /* |
| 1751 | * A retry was scheduled, so just return. |
| 1752 | */ |
| 1753 | return; |
| 1754 | } |
| 1755 | } |
| 1756 | |
| 1757 | if (error == EIO) { |
| 1758 | struct buf *q_bp; |
| 1759 | struct bio *q_bio; |
| 1760 | |
| 1761 | /* |
| 1762 | * Catastrophic error. Mark the tape as frozen |
| 1763 | * (we no longer know tape position). |
| 1764 | * |
| 1765 | * Return all queued I/O with EIO, and unfreeze |
| 1766 | * our queue so that future transactions that |
| 1767 | * attempt to fix this problem can get to the |
| 1768 | * device. |
| 1769 | * |
| 1770 | */ |
| 1771 | |
| 1772 | softc->flags |= SA_FLAG_TAPE_FROZEN; |
| 1773 | while ((q_bio = bioq_first(&softc->bio_queue)) != NULL) { |
| 1774 | bioq_remove(&softc->bio_queue, q_bio); |
| 1775 | q_bp = q_bio->bio_buf; |
| 1776 | q_bp->b_resid = q_bp->b_bcount; |
| 1777 | q_bp->b_error = EIO; |
| 1778 | q_bp->b_flags |= B_ERROR; |
| 1779 | biodone(q_bio); |
| 1780 | } |
| 1781 | } |
| 1782 | if (error != 0) { |
| 1783 | bp->b_resid = bp->b_bcount; |
| 1784 | bp->b_error = error; |
| 1785 | bp->b_flags |= B_ERROR; |
| 1786 | /* |
| 1787 | * In the error case, position is updated in saerror. |
| 1788 | */ |
| 1789 | } else { |
| 1790 | bp->b_resid = csio->resid; |
| 1791 | bp->b_error = 0; |
| 1792 | if (csio->resid != 0) { |
| 1793 | bp->b_flags |= B_ERROR; |
| 1794 | } |
| 1795 | if (bp->b_cmd != BUF_CMD_READ) { |
| 1796 | softc->flags |= SA_FLAG_TAPE_WRITTEN; |
| 1797 | softc->filemarks = 0; |
| 1798 | } |
| 1799 | if (!(csio->ccb_h.ccb_pflags & SA_POSITION_UPDATED) && |
| 1800 | (softc->blkno != (daddr_t) -1)) { |
| 1801 | if ((softc->flags & SA_FLAG_FIXED) != 0) { |
| 1802 | u_int32_t l; |
| 1803 | if (softc->blk_shift != 0) { |
| 1804 | l = bp->b_bcount >> |
| 1805 | softc->blk_shift; |
| 1806 | } else { |
| 1807 | l = bp->b_bcount / |
| 1808 | softc->media_blksize; |
| 1809 | } |
| 1810 | softc->blkno += (daddr_t) l; |
| 1811 | } else { |
| 1812 | softc->blkno++; |
| 1813 | } |
| 1814 | } |
| 1815 | } |
| 1816 | /* |
| 1817 | * If we had an error (immediate or pending), |
| 1818 | * release the device queue now. |
| 1819 | */ |
| 1820 | if (error || (softc->flags & SA_FLAG_ERR_PENDING)) |
| 1821 | cam_release_devq(done_ccb->ccb_h.path, 0, 0, 0, 0); |
| 1822 | #ifdef CAMDEBUG |
| 1823 | if (error || bp->b_resid) { |
| 1824 | CAM_DEBUG(periph->path, CAM_DEBUG_INFO, |
| 1825 | ("error %d resid %d count %d\n", error, |
| 1826 | bp->b_resid, bp->b_bcount)); |
| 1827 | } |
| 1828 | #endif |
| 1829 | devstat_end_transaction_buf(&softc->device_stats, bp); |
| 1830 | biodone(bio); |
| 1831 | break; |
| 1832 | } |
| 1833 | case SA_CCB_WAITING: |
| 1834 | { |
| 1835 | /* Caller will release the CCB */ |
| 1836 | wakeup(&done_ccb->ccb_h.cbfcnp); |
| 1837 | return; |
| 1838 | } |
| 1839 | } |
| 1840 | xpt_release_ccb(done_ccb); |
| 1841 | } |
| 1842 | |
| 1843 | /* |
| 1844 | * Mount the tape (make sure it's ready for I/O). |
| 1845 | */ |
| 1846 | static int |
| 1847 | samount(struct cam_periph *periph, int oflags, cdev_t dev) |
| 1848 | { |
| 1849 | struct sa_softc *softc; |
| 1850 | union ccb *ccb; |
| 1851 | int error; |
| 1852 | |
| 1853 | /* |
| 1854 | * oflags can be checked for 'kind' of open (read-only check) - later |
| 1855 | * dev can be checked for a control-mode or compression open - later |
| 1856 | */ |
| 1857 | UNUSED_PARAMETER(oflags); |
| 1858 | UNUSED_PARAMETER(dev); |
| 1859 | |
| 1860 | |
| 1861 | softc = (struct sa_softc *)periph->softc; |
| 1862 | |
| 1863 | /* |
| 1864 | * This should determine if something has happend since the last |
| 1865 | * open/mount that would invalidate the mount. We do *not* want |
| 1866 | * to retry this command- we just want the status. But we only |
| 1867 | * do this if we're mounted already- if we're not mounted, |
| 1868 | * we don't care about the unit read state and can instead use |
| 1869 | * this opportunity to attempt to reserve the tape unit. |
| 1870 | */ |
| 1871 | |
| 1872 | if (softc->flags & SA_FLAG_TAPE_MOUNTED) { |
| 1873 | ccb = cam_periph_getccb(periph, 1); |
| 1874 | scsi_test_unit_ready(&ccb->csio, 0, sadone, |
| 1875 | MSG_SIMPLE_Q_TAG, SSD_FULL_SIZE, IO_TIMEOUT); |
| 1876 | error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, |
| 1877 | &softc->device_stats); |
| 1878 | QFRLS(ccb); |
| 1879 | if (error == ENXIO) { |
| 1880 | softc->flags &= ~SA_FLAG_TAPE_MOUNTED; |
| 1881 | scsi_test_unit_ready(&ccb->csio, 0, sadone, |
| 1882 | MSG_SIMPLE_Q_TAG, SSD_FULL_SIZE, IO_TIMEOUT); |
| 1883 | error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, |
| 1884 | &softc->device_stats); |
| 1885 | QFRLS(ccb); |
| 1886 | } else if (error) { |
| 1887 | /* |
| 1888 | * We don't need to freeze the tape because we |
| 1889 | * will now attempt to rewind/load it. |
| 1890 | */ |
| 1891 | softc->flags &= ~SA_FLAG_TAPE_MOUNTED; |
| 1892 | if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) { |
| 1893 | xpt_print(periph->path, |
| 1894 | "error %d on TUR in samount\n", error); |
| 1895 | } |
| 1896 | } |
| 1897 | } else { |
| 1898 | error = sareservereleaseunit(periph, TRUE); |
| 1899 | if (error) { |
| 1900 | return (error); |
| 1901 | } |
| 1902 | ccb = cam_periph_getccb(periph, 1); |
| 1903 | scsi_test_unit_ready(&ccb->csio, 0, sadone, |
| 1904 | MSG_SIMPLE_Q_TAG, SSD_FULL_SIZE, IO_TIMEOUT); |
| 1905 | error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, |
| 1906 | &softc->device_stats); |
| 1907 | QFRLS(ccb); |
| 1908 | } |
| 1909 | |
| 1910 | if ((softc->flags & SA_FLAG_TAPE_MOUNTED) == 0) { |
| 1911 | struct scsi_read_block_limits_data *rblim = NULL; |
| 1912 | int comp_enabled, comp_supported; |
| 1913 | u_int8_t write_protect, guessing = 0; |
| 1914 | |
| 1915 | /* |
| 1916 | * Clear out old state. |
| 1917 | */ |
| 1918 | softc->flags &= ~(SA_FLAG_TAPE_WP|SA_FLAG_TAPE_WRITTEN| |
| 1919 | SA_FLAG_ERR_PENDING|SA_FLAG_COMP_ENABLED| |
| 1920 | SA_FLAG_COMP_SUPP|SA_FLAG_COMP_UNSUPP); |
| 1921 | softc->filemarks = 0; |
| 1922 | |
| 1923 | /* |
| 1924 | * *Very* first off, make sure we're loaded to BOT. |
| 1925 | */ |
| 1926 | scsi_load_unload(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, FALSE, |
| 1927 | FALSE, FALSE, 1, SSD_FULL_SIZE, REWIND_TIMEOUT); |
| 1928 | error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, |
| 1929 | &softc->device_stats); |
| 1930 | QFRLS(ccb); |
| 1931 | |
| 1932 | /* |
| 1933 | * In case this doesn't work, do a REWIND instead |
| 1934 | */ |
| 1935 | if (error) { |
| 1936 | scsi_rewind(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, |
| 1937 | FALSE, SSD_FULL_SIZE, REWIND_TIMEOUT); |
| 1938 | error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, |
| 1939 | &softc->device_stats); |
| 1940 | QFRLS(ccb); |
| 1941 | } |
| 1942 | if (error) { |
| 1943 | xpt_release_ccb(ccb); |
| 1944 | goto exit; |
| 1945 | } |
| 1946 | |
| 1947 | /* |
| 1948 | * Do a dummy test read to force access to the |
| 1949 | * media so that the drive will really know what's |
| 1950 | * there. We actually don't really care what the |
| 1951 | * blocksize on tape is and don't expect to really |
| 1952 | * read a full record. |
| 1953 | */ |
| 1954 | rblim = kmalloc(8192, M_SCSISA, M_INTWAIT); |
| 1955 | |
| 1956 | if ((softc->quirks & SA_QUIRK_NODREAD) == 0) { |
| 1957 | scsi_sa_read_write(&ccb->csio, 0, sadone, |
| 1958 | MSG_SIMPLE_Q_TAG, 1, FALSE, 0, 8192, |
| 1959 | (void *) rblim, 8192, SSD_FULL_SIZE, |
| 1960 | IO_TIMEOUT); |
| 1961 | cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, |
| 1962 | &softc->device_stats); |
| 1963 | QFRLS(ccb); |
| 1964 | scsi_rewind(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG, |
| 1965 | FALSE, SSD_FULL_SIZE, REWIND_TIMEOUT); |
| 1966 | error = cam_periph_runccb(ccb, saerror, CAM_RETRY_SELTO, |
| 1967 | SF_NO_PRINT | SF_RETRY_UA, |
| 1968 | &softc->device_stats); |
| 1969 | QFRLS(ccb); |
| 1970 | if (error) { |
| 1971 | xpt_print(periph->path, |
| 1972 | "unable to rewind after test read\n"); |
| 1973 | xpt_release_ccb(ccb); |
| 1974 | goto exit; |
| 1975 | } |
| 1976 | } |
| 1977 | |
| 1978 | /* |
| 1979 | * Next off, determine block limits. |
| 1980 | */ |
| 1981 | scsi_read_block_limits(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, |
| 1982 | rblim, SSD_FULL_SIZE, SCSIOP_TIMEOUT); |
| 1983 | |
| 1984 | error = cam_periph_runccb(ccb, saerror, CAM_RETRY_SELTO, |
| 1985 | SF_NO_PRINT | SF_RETRY_UA, &softc->device_stats); |
| 1986 | |
| 1987 | QFRLS(ccb); |
| 1988 | xpt_release_ccb(ccb); |
| 1989 | |
| 1990 | if (error != 0) { |
| 1991 | /* |
| 1992 | * If it's less than SCSI-2, READ BLOCK LIMITS is not |
| 1993 | * a MANDATORY command. Anyway- it doesn't matter- |
| 1994 | * we can proceed anyway. |
| 1995 | */ |
| 1996 | softc->blk_gran = 0; |
| 1997 | softc->max_blk = ~0; |
| 1998 | softc->min_blk = 0; |
| 1999 | } else { |
| 2000 | if (softc->scsi_rev >= SCSI_REV_SPC) { |
| 2001 | softc->blk_gran = RBL_GRAN(rblim); |
| 2002 | } else { |
| 2003 | softc->blk_gran = 0; |
| 2004 | } |
| 2005 | /* |
| 2006 | * We take max_blk == min_blk to mean a default to |
| 2007 | * fixed mode- but note that whatever we get out of |
| 2008 | * sagetparams below will actually determine whether |
| 2009 | * we are actually *in* fixed mode. |
| 2010 | */ |
| 2011 | softc->max_blk = scsi_3btoul(rblim->maximum); |
| 2012 | softc->min_blk = scsi_2btoul(rblim->minimum); |
| 2013 | |
| 2014 | |
| 2015 | } |
| 2016 | /* |
| 2017 | * Next, perform a mode sense to determine |
| 2018 | * current density, blocksize, compression etc. |
| 2019 | */ |
| 2020 | error = sagetparams(periph, SA_PARAM_ALL, |
| 2021 | &softc->media_blksize, |
| 2022 | &softc->media_density, |
| 2023 | &softc->media_numblks, |
| 2024 | &softc->buffer_mode, &write_protect, |
| 2025 | &softc->speed, &comp_supported, |
| 2026 | &comp_enabled, &softc->comp_algorithm, |
| 2027 | NULL); |
| 2028 | |
| 2029 | if (error != 0) { |
| 2030 | /* |
| 2031 | * We could work a little harder here. We could |
| 2032 | * adjust our attempts to get information. It |
| 2033 | * might be an ancient tape drive. If someone |
| 2034 | * nudges us, we'll do that. |
| 2035 | */ |
| 2036 | goto exit; |
| 2037 | } |
| 2038 | |
| 2039 | /* |
| 2040 | * If no quirk has determined that this is a device that is |
| 2041 | * preferred to be in fixed or variable mode, now is the time |
| 2042 | * to find out. |
| 2043 | */ |
| 2044 | if ((softc->quirks & (SA_QUIRK_FIXED|SA_QUIRK_VARIABLE)) == 0) { |
| 2045 | guessing = 1; |
| 2046 | /* |
| 2047 | * This could be expensive to find out. Luckily we |
| 2048 | * only need to do this once. If we start out in |
| 2049 | * 'default' mode, try and set ourselves to one |
| 2050 | * of the densities that would determine a wad |
| 2051 | * of other stuff. Go from highest to lowest. |
| 2052 | */ |
| 2053 | if (softc->media_density == SCSI_DEFAULT_DENSITY) { |
| 2054 | int i; |
| 2055 | static u_int8_t ctry[] = { |
| 2056 | SCSI_DENSITY_HALFINCH_PE, |
| 2057 | SCSI_DENSITY_HALFINCH_6250C, |
| 2058 | SCSI_DENSITY_HALFINCH_6250, |
| 2059 | SCSI_DENSITY_HALFINCH_1600, |
| 2060 | SCSI_DENSITY_HALFINCH_800, |
| 2061 | SCSI_DENSITY_QIC_4GB, |
| 2062 | SCSI_DENSITY_QIC_2GB, |
| 2063 | SCSI_DENSITY_QIC_525_320, |
| 2064 | SCSI_DENSITY_QIC_150, |
| 2065 | SCSI_DENSITY_QIC_120, |
| 2066 | SCSI_DENSITY_QIC_24, |
| 2067 | SCSI_DENSITY_QIC_11_9TRK, |
| 2068 | SCSI_DENSITY_QIC_11_4TRK, |
| 2069 | SCSI_DENSITY_QIC_1320, |
| 2070 | SCSI_DENSITY_QIC_3080, |
| 2071 | 0 |
| 2072 | }; |
| 2073 | for (i = 0; ctry[i]; i++) { |
| 2074 | error = sasetparams(periph, |
| 2075 | SA_PARAM_DENSITY, 0, ctry[i], |
| 2076 | 0, SF_NO_PRINT); |
| 2077 | if (error == 0) { |
| 2078 | softc->media_density = ctry[i]; |
| 2079 | break; |
| 2080 | } |
| 2081 | } |
| 2082 | } |
| 2083 | switch (softc->media_density) { |
| 2084 | case SCSI_DENSITY_QIC_11_4TRK: |
| 2085 | case SCSI_DENSITY_QIC_11_9TRK: |
| 2086 | case SCSI_DENSITY_QIC_24: |
| 2087 | case SCSI_DENSITY_QIC_120: |
| 2088 | case SCSI_DENSITY_QIC_150: |
| 2089 | case SCSI_DENSITY_QIC_525_320: |
| 2090 | case SCSI_DENSITY_QIC_1320: |
| 2091 | case SCSI_DENSITY_QIC_3080: |
| 2092 | softc->quirks &= ~SA_QUIRK_2FM; |
| 2093 | softc->quirks |= SA_QUIRK_FIXED|SA_QUIRK_1FM; |
| 2094 | softc->last_media_blksize = 512; |
| 2095 | break; |
| 2096 | case SCSI_DENSITY_QIC_4GB: |
| 2097 | case SCSI_DENSITY_QIC_2GB: |
| 2098 | softc->quirks &= ~SA_QUIRK_2FM; |
| 2099 | softc->quirks |= SA_QUIRK_FIXED|SA_QUIRK_1FM; |
| 2100 | softc->last_media_blksize = 1024; |
| 2101 | break; |
| 2102 | default: |
| 2103 | softc->last_media_blksize = |
| 2104 | softc->media_blksize; |
| 2105 | softc->quirks |= SA_QUIRK_VARIABLE; |
| 2106 | break; |
| 2107 | } |
| 2108 | } |
| 2109 | |
| 2110 | /* |
| 2111 | * If no quirk has determined that this is a device that needs |
| 2112 | * to have 2 Filemarks at EOD, now is the time to find out. |
| 2113 | */ |
| 2114 | |
| 2115 | if ((softc->quirks & SA_QUIRK_2FM) == 0) { |
| 2116 | switch (softc->media_density) { |
| 2117 | case SCSI_DENSITY_HALFINCH_800: |
| 2118 | case SCSI_DENSITY_HALFINCH_1600: |
| 2119 | case SCSI_DENSITY_HALFINCH_6250: |
| 2120 | case SCSI_DENSITY_HALFINCH_6250C: |
| 2121 | case SCSI_DENSITY_HALFINCH_PE: |
| 2122 | softc->quirks &= ~SA_QUIRK_1FM; |
| 2123 | softc->quirks |= SA_QUIRK_2FM; |
| 2124 | break; |
| 2125 | default: |
| 2126 | break; |
| 2127 | } |
| 2128 | } |
| 2129 | |
| 2130 | /* |
| 2131 | * Now validate that some info we got makes sense. |
| 2132 | */ |
| 2133 | if ((softc->max_blk < softc->media_blksize) || |
| 2134 | (softc->min_blk > softc->media_blksize && |
| 2135 | softc->media_blksize)) { |
| 2136 | xpt_print(periph->path, |
| 2137 | "BLOCK LIMITS (%d..%d) could not match current " |
| 2138 | "block settings (%d)- adjusting\n", softc->min_blk, |
| 2139 | softc->max_blk, softc->media_blksize); |
| 2140 | softc->max_blk = softc->min_blk = |
| 2141 | softc->media_blksize; |
| 2142 | } |
| 2143 | |
| 2144 | /* |
| 2145 | * Now put ourselves into the right frame of mind based |
| 2146 | * upon quirks... |
| 2147 | */ |
| 2148 | tryagain: |
| 2149 | /* |
| 2150 | * If we want to be in FIXED mode and our current blocksize |
| 2151 | * is not equal to our last blocksize (if nonzero), try and |
| 2152 | * set ourselves to this last blocksize (as the 'preferred' |
| 2153 | * block size). The initial quirkmatch at registry sets the |
| 2154 | * initial 'last' blocksize. If, for whatever reason, this |
| 2155 | * 'last' blocksize is zero, set the blocksize to 512, |
| 2156 | * or min_blk if that's larger. |
| 2157 | */ |
| 2158 | if ((softc->quirks & SA_QUIRK_FIXED) && |
| 2159 | (softc->quirks & SA_QUIRK_NO_MODESEL) == 0 && |
| 2160 | (softc->media_blksize != softc->last_media_blksize)) { |
| 2161 | softc->media_blksize = softc->last_media_blksize; |
| 2162 | if (softc->media_blksize == 0) { |
| 2163 | softc->media_blksize = 512; |
| 2164 | if (softc->media_blksize < softc->min_blk) { |
| 2165 | softc->media_blksize = softc->min_blk; |
| 2166 | } |
| 2167 | } |
| 2168 | error = sasetparams(periph, SA_PARAM_BLOCKSIZE, |
| 2169 | softc->media_blksize, 0, 0, SF_NO_PRINT); |
| 2170 | if (error) { |
| 2171 | xpt_print(periph->path, |
| 2172 | "unable to set fixed blocksize to %d\n", |
| 2173 | softc->media_blksize); |
| 2174 | goto exit; |
| 2175 | } |
| 2176 | } |
| 2177 | |
| 2178 | if ((softc->quirks & SA_QUIRK_VARIABLE) && |
| 2179 | (softc->media_blksize != 0)) { |
| 2180 | softc->last_media_blksize = softc->media_blksize; |
| 2181 | softc->media_blksize = 0; |
| 2182 | error = sasetparams(periph, SA_PARAM_BLOCKSIZE, |
| 2183 | 0, 0, 0, SF_NO_PRINT); |
| 2184 | if (error) { |
| 2185 | /* |
| 2186 | * If this fails and we were guessing, just |
| 2187 | * assume that we got it wrong and go try |
| 2188 | * fixed block mode. Don't even check against |
| 2189 | * density code at this point. |
| 2190 | */ |
| 2191 | if (guessing) { |
| 2192 | softc->quirks &= ~SA_QUIRK_VARIABLE; |
| 2193 | softc->quirks |= SA_QUIRK_FIXED; |
| 2194 | if (softc->last_media_blksize == 0) |
| 2195 | softc->last_media_blksize = 512; |
| 2196 | goto tryagain; |
| 2197 | } |
| 2198 | xpt_print(periph->path, |
| 2199 | "unable to set variable blocksize\n"); |
| 2200 | goto exit; |
| 2201 | } |
| 2202 | } |
| 2203 | |
| 2204 | /* |
| 2205 | * Now that we have the current block size, |
| 2206 | * set up some parameters for sastart's usage. |
| 2207 | */ |
| 2208 | if (softc->media_blksize) { |
| 2209 | softc->flags |= SA_FLAG_FIXED; |
| 2210 | if (powerof2(softc->media_blksize)) { |
| 2211 | softc->blk_shift = |
| 2212 | ffs(softc->media_blksize) - 1; |
| 2213 | softc->blk_mask = softc->media_blksize - 1; |
| 2214 | } else { |
| 2215 | softc->blk_mask = ~0; |
| 2216 | softc->blk_shift = 0; |
| 2217 | } |
| 2218 | } else { |
| 2219 | /* |
| 2220 | * The SCSI-3 spec allows 0 to mean "unspecified". |
| 2221 | * The SCSI-1 spec allows 0 to mean 'infinite'. |
| 2222 | * |
| 2223 | * Either works here. |
| 2224 | */ |
| 2225 | if (softc->max_blk == 0) { |
| 2226 | softc->max_blk = ~0; |
| 2227 | } |
| 2228 | softc->blk_shift = 0; |
| 2229 | if (softc->blk_gran != 0) { |
| 2230 | softc->blk_mask = softc->blk_gran - 1; |
| 2231 | } else { |
| 2232 | softc->blk_mask = 0; |
| 2233 | } |
| 2234 | } |
| 2235 | |
| 2236 | if (write_protect) |
| 2237 | softc->flags |= SA_FLAG_TAPE_WP; |
| 2238 | |
| 2239 | if (comp_supported) { |
| 2240 | if (softc->saved_comp_algorithm == 0) |
| 2241 | softc->saved_comp_algorithm = |
| 2242 | softc->comp_algorithm; |
| 2243 | softc->flags |= SA_FLAG_COMP_SUPP; |
| 2244 | if (comp_enabled) |
| 2245 | softc->flags |= SA_FLAG_COMP_ENABLED; |
| 2246 | } else |
| 2247 | softc->flags |= SA_FLAG_COMP_UNSUPP; |
| 2248 | |
| 2249 | if ((softc->buffer_mode == SMH_SA_BUF_MODE_NOBUF) && |
| 2250 | (softc->quirks & SA_QUIRK_NO_MODESEL) == 0) { |
| 2251 | error = sasetparams(periph, SA_PARAM_BUFF_MODE, 0, |
| 2252 | 0, 0, SF_NO_PRINT); |
| 2253 | if (error == 0) { |
| 2254 | softc->buffer_mode = SMH_SA_BUF_MODE_SIBUF; |
| 2255 | } else { |
| 2256 | xpt_print(periph->path, |
| 2257 | "unable to set buffered mode\n"); |
| 2258 | } |
| 2259 | error = 0; /* not an error */ |
| 2260 | } |
| 2261 | |
| 2262 | |
| 2263 | if (error == 0) { |
| 2264 | softc->flags |= SA_FLAG_TAPE_MOUNTED; |
| 2265 | } |
| 2266 | exit: |
| 2267 | if (rblim != NULL) |
| 2268 | kfree(rblim, M_SCSISA); |
| 2269 | |
| 2270 | if (error != 0) { |
| 2271 | softc->dsreg = MTIO_DSREG_NIL; |
| 2272 | } else { |
| 2273 | softc->fileno = softc->blkno = 0; |
| 2274 | softc->dsreg = MTIO_DSREG_REST; |
| 2275 | } |
| 2276 | #ifdef SA_1FM_AT_EOD |
| 2277 | if ((softc->quirks & SA_QUIRK_2FM) == 0) |
| 2278 | softc->quirks |= SA_QUIRK_1FM; |
| 2279 | #else |
| 2280 | if ((softc->quirks & SA_QUIRK_1FM) == 0) |
| 2281 | softc->quirks |= SA_QUIRK_2FM; |
| 2282 | #endif |
| 2283 | } else |
| 2284 | xpt_release_ccb(ccb); |
| 2285 | |
| 2286 | /* |
| 2287 | * If we return an error, we're not mounted any more, |
| 2288 | * so release any device reservation. |
| 2289 | */ |
| 2290 | if (error != 0) { |
| 2291 | sareservereleaseunit(periph, FALSE); |
| 2292 | } else { |
| 2293 | /* |
| 2294 | * Clear I/O residual. |
| 2295 | */ |
| 2296 | softc->last_io_resid = 0; |
| 2297 | softc->last_ctl_resid = 0; |
| 2298 | } |
| 2299 | return (error); |
| 2300 | } |
| 2301 | |
| 2302 | /* |
| 2303 | * How many filemarks do we need to write if we were to terminate the |
| 2304 | * tape session right now? Note that this can be a negative number |
| 2305 | */ |
| 2306 | |
| 2307 | static int |
| 2308 | samarkswanted(struct cam_periph *periph) |
| 2309 | { |
| 2310 | int markswanted; |
| 2311 | struct sa_softc *softc; |
| 2312 | |
| 2313 | softc = (struct sa_softc *)periph->softc; |
| 2314 | markswanted = 0; |
| 2315 | if ((softc->flags & SA_FLAG_TAPE_WRITTEN) != 0) { |
| 2316 | markswanted++; |
| 2317 | if (softc->quirks & SA_QUIRK_2FM) |
| 2318 | markswanted++; |
| 2319 | } |
| 2320 | markswanted -= softc->filemarks; |
| 2321 | return (markswanted); |
| 2322 | } |
| 2323 | |
| 2324 | static int |
| 2325 | sacheckeod(struct cam_periph *periph) |
| 2326 | { |
| 2327 | int error; |
| 2328 | int markswanted; |
| 2329 | |
| 2330 | markswanted = samarkswanted(periph); |
| 2331 | |
| 2332 | if (markswanted > 0) { |
| 2333 | error = sawritefilemarks(periph, markswanted, FALSE); |
| 2334 | } else { |
| 2335 | error = 0; |
| 2336 | } |
| 2337 | return (error); |
| 2338 | } |
| 2339 | |
| 2340 | static int |
| 2341 | saerror(union ccb *ccb, u_int32_t cflgs, u_int32_t sflgs) |
| 2342 | { |
| 2343 | static const char *toobig = |
| 2344 | "%d-byte tape record bigger than supplied buffer\n"; |
| 2345 | struct cam_periph *periph; |
| 2346 | struct sa_softc *softc; |
| 2347 | struct ccb_scsiio *csio; |
| 2348 | struct scsi_sense_data *sense; |
| 2349 | u_int32_t resid = 0; |
| 2350 | int32_t info = 0; |
| 2351 | cam_status status; |
| 2352 | int error_code, sense_key, asc, ascq, error, aqvalid; |
| 2353 | |
| 2354 | periph = xpt_path_periph(ccb->ccb_h.path); |
| 2355 | softc = (struct sa_softc *)periph->softc; |
| 2356 | csio = &ccb->csio; |
| 2357 | sense = &csio->sense_data; |
| 2358 | scsi_extract_sense(sense, &error_code, &sense_key, &asc, &ascq); |
| 2359 | aqvalid = sense->extra_len >= 6; |
| 2360 | error = 0; |
| 2361 | |
| 2362 | status = csio->ccb_h.status & CAM_STATUS_MASK; |
| 2363 | |
| 2364 | /* |
| 2365 | * Calculate/latch up, any residuals... We do this in a funny 2-step |
| 2366 | * so we can print stuff here if we have CAM_DEBUG enabled for this |
| 2367 | * unit. |
| 2368 | */ |
| 2369 | if (status == CAM_SCSI_STATUS_ERROR) { |
| 2370 | if ((sense->error_code & SSD_ERRCODE_VALID) != 0) { |
| 2371 | info = (int32_t) scsi_4btoul(sense->info); |
| 2372 | resid = info; |
| 2373 | if ((softc->flags & SA_FLAG_FIXED) != 0) |
| 2374 | resid *= softc->media_blksize; |
| 2375 | } else { |
| 2376 | resid = csio->dxfer_len; |
| 2377 | info = resid; |
| 2378 | if ((softc->flags & SA_FLAG_FIXED) != 0) { |
| 2379 | if (softc->media_blksize) |
| 2380 | info /= softc->media_blksize; |
| 2381 | } |
| 2382 | } |
| 2383 | if (CCB_Type(csio) == SA_CCB_BUFFER_IO) { |
| 2384 | bcopy((caddr_t) sense, (caddr_t) &softc->last_io_sense, |
| 2385 | sizeof (struct scsi_sense_data)); |
| 2386 | bcopy(csio->cdb_io.cdb_bytes, softc->last_io_cdb, |
| 2387 | (int) csio->cdb_len); |
| 2388 | softc->last_io_resid = resid; |
| 2389 | softc->last_resid_was_io = 1; |
| 2390 | } else { |
| 2391 | bcopy((caddr_t) sense, (caddr_t) &softc->last_ctl_sense, |
| 2392 | sizeof (struct scsi_sense_data)); |
| 2393 | bcopy(csio->cdb_io.cdb_bytes, softc->last_ctl_cdb, |
| 2394 | (int) csio->cdb_len); |
| 2395 | softc->last_ctl_resid = resid; |
| 2396 | softc->last_resid_was_io = 0; |
| 2397 | } |
| 2398 | CAM_DEBUG(periph->path, CAM_DEBUG_INFO, ("CDB[0]=0x%x Key 0x%x " |
| 2399 | "ASC/ASCQ 0x%x/0x%x CAM STATUS 0x%x flags 0x%x resid %d " |
| 2400 | "dxfer_len %d\n", csio->cdb_io.cdb_bytes[0] & 0xff, |
| 2401 | sense_key, asc, ascq, status, |
| 2402 | sense->flags & ~SSD_KEY_RESERVED, resid, csio->dxfer_len)); |
| 2403 | } else { |
| 2404 | CAM_DEBUG(periph->path, CAM_DEBUG_INFO, |
| 2405 | ("Cam Status 0x%x\n", status)); |
| 2406 | } |
| 2407 | |
| 2408 | switch (status) { |
| 2409 | case CAM_REQ_CMP: |
| 2410 | return (0); |
| 2411 | case CAM_SCSI_STATUS_ERROR: |
| 2412 | /* |
| 2413 | * If a read/write command, we handle it here. |
| 2414 | */ |
| 2415 | if (CCB_Type(csio) != SA_CCB_WAITING) { |
| 2416 | break; |
| 2417 | } |
| 2418 | /* |
| 2419 | * If this was just EOM/EOP, Filemark, Setmark or ILI detected |
| 2420 | * on a non read/write command, we assume it's not an error |
| 2421 | * and propagate the residule and return. |
| 2422 | */ |
| 2423 | if ((aqvalid && asc == 0 && ascq > 0 && ascq <= 5) || |
| 2424 | (aqvalid == 0 && sense_key == SSD_KEY_NO_SENSE)) { |
| 2425 | csio->resid = resid; |
| 2426 | QFRLS(ccb); |
| 2427 | return (0); |
| 2428 | } |
| 2429 | /* |
| 2430 | * Otherwise, we let the common code handle this. |
| 2431 | */ |
| 2432 | return (cam_periph_error(ccb, cflgs, sflgs, &softc->saved_ccb)); |
| 2433 | |
| 2434 | /* |
| 2435 | * XXX: To Be Fixed |
| 2436 | * We cannot depend upon CAM honoring retry counts for these. |
| 2437 | */ |
| 2438 | case CAM_SCSI_BUS_RESET: |
| 2439 | case CAM_BDR_SENT: |
| 2440 | if (ccb->ccb_h.retry_count <= 0) { |
| 2441 | return (EIO); |
| 2442 | } |
| 2443 | /* FALLTHROUGH */ |
| 2444 | default: |
| 2445 | return (cam_periph_error(ccb, cflgs, sflgs, &softc->saved_ccb)); |
| 2446 | } |
| 2447 | |
| 2448 | /* |
| 2449 | * Handle filemark, end of tape, mismatched record sizes.... |
| 2450 | * From this point out, we're only handling read/write cases. |
| 2451 | * Handle writes && reads differently. |
| 2452 | */ |
| 2453 | |
| 2454 | if (csio->cdb_io.cdb_bytes[0] == SA_WRITE) { |
| 2455 | if (sense_key == SSD_KEY_VOLUME_OVERFLOW) { |
| 2456 | csio->resid = resid; |
| 2457 | error = ENOSPC; |
| 2458 | } else if (sense->flags & SSD_EOM) { |
| 2459 | softc->flags |= SA_FLAG_EOM_PENDING; |
| 2460 | /* |
| 2461 | * Grotesque as it seems, the few times |
| 2462 | * I've actually seen a non-zero resid, |
| 2463 | * the tape drive actually lied and had |
| 2464 | * written all the data!. |
| 2465 | */ |
| 2466 | csio->resid = 0; |
| 2467 | } |
| 2468 | } else { |
| 2469 | csio->resid = resid; |
| 2470 | if (sense_key == SSD_KEY_BLANK_CHECK) { |
| 2471 | if (softc->quirks & SA_QUIRK_1FM) { |
| 2472 | error = 0; |
| 2473 | softc->flags |= SA_FLAG_EOM_PENDING; |
| 2474 | } else { |
| 2475 | error = EIO; |
| 2476 | } |
| 2477 | } else if (sense->flags & SSD_FILEMARK) { |
| 2478 | if (softc->flags & SA_FLAG_FIXED) { |
| 2479 | error = -1; |
| 2480 | softc->flags |= SA_FLAG_EOF_PENDING; |
| 2481 | } |
| 2482 | /* |
| 2483 | * Unconditionally, if we detected a filemark on a read, |
| 2484 | * mark that we've run moved a file ahead. |
| 2485 | */ |
| 2486 | if (softc->fileno != (daddr_t) -1) { |
| 2487 | softc->fileno++; |
| 2488 | softc->blkno = 0; |
| 2489 | csio->ccb_h.ccb_pflags |= SA_POSITION_UPDATED; |
| 2490 | } |
| 2491 | } |
| 2492 | } |
| 2493 | |
| 2494 | /* |
| 2495 | * Incorrect Length usually applies to read, but can apply to writes. |
| 2496 | */ |
| 2497 | if (error == 0 && (sense->flags & SSD_ILI)) { |
| 2498 | if (info < 0) { |
| 2499 | xpt_print(csio->ccb_h.path, toobig, |
| 2500 | csio->dxfer_len - info); |
| 2501 | csio->resid = csio->dxfer_len; |
| 2502 | error = EIO; |
| 2503 | } else { |
| 2504 | csio->resid = resid; |
| 2505 | if (softc->flags & SA_FLAG_FIXED) { |
| 2506 | softc->flags |= SA_FLAG_EIO_PENDING; |
| 2507 | } |
| 2508 | /* |
| 2509 | * Bump the block number if we hadn't seen a filemark. |
| 2510 | * Do this independent of errors (we've moved anyway). |
| 2511 | */ |
| 2512 | if ((sense->flags & SSD_FILEMARK) == 0) { |
| 2513 | if (softc->blkno != (daddr_t) -1) { |
| 2514 | softc->blkno++; |
| 2515 | csio->ccb_h.ccb_pflags |= |
| 2516 | SA_POSITION_UPDATED; |
| 2517 | } |
| 2518 | } |
| 2519 | } |
| 2520 | } |
| 2521 | |
| 2522 | if (error <= 0) { |
| 2523 | /* |
| 2524 | * Unfreeze the queue if frozen as we're not returning anything |
| 2525 | * to our waiters that would indicate an I/O error has occurred |
| 2526 | * (yet). |
| 2527 | */ |
| 2528 | QFRLS(ccb); |
| 2529 | error = 0; |
| 2530 | } |
| 2531 | return (error); |
| 2532 | } |
| 2533 | |
| 2534 | static int |
| 2535 | sagetparams(struct cam_periph *periph, sa_params params_to_get, |
| 2536 | u_int32_t *blocksize, u_int8_t *density, u_int32_t *numblocks, |
| 2537 | int *buff_mode, u_int8_t *write_protect, u_int8_t *speed, |
| 2538 | int *comp_supported, int *comp_enabled, u_int32_t *comp_algorithm, |
| 2539 | sa_comp_t *tcs) |
| 2540 | { |
| 2541 | union ccb *ccb; |
| 2542 | void *mode_buffer; |
| 2543 | struct scsi_mode_header_6 *mode_hdr; |
| 2544 | struct scsi_mode_blk_desc *mode_blk; |
| 2545 | int mode_buffer_len; |
| 2546 | struct sa_softc *softc; |
| 2547 | u_int8_t cpage; |
| 2548 | int error; |
| 2549 | cam_status status; |
| 2550 | |
| 2551 | softc = (struct sa_softc *)periph->softc; |
| 2552 | ccb = cam_periph_getccb(periph, 1); |
| 2553 | if (softc->quirks & SA_QUIRK_NO_CPAGE) |
| 2554 | cpage = SA_DEVICE_CONFIGURATION_PAGE; |
| 2555 | else |
| 2556 | cpage = SA_DATA_COMPRESSION_PAGE; |
| 2557 | |
| 2558 | retry: |
| 2559 | mode_buffer_len = sizeof(*mode_hdr) + sizeof(*mode_blk); |
| 2560 | |
| 2561 | if (params_to_get & SA_PARAM_COMPRESSION) { |
| 2562 | if (softc->quirks & SA_QUIRK_NOCOMP) { |
| 2563 | *comp_supported = FALSE; |
| 2564 | params_to_get &= ~SA_PARAM_COMPRESSION; |
| 2565 | } else |
| 2566 | mode_buffer_len += sizeof (sa_comp_t); |
| 2567 | } |
| 2568 | |
| 2569 | mode_buffer = kmalloc(mode_buffer_len, M_SCSISA, M_INTWAIT | M_ZERO); |
| 2570 | mode_hdr = (struct scsi_mode_header_6 *)mode_buffer; |
| 2571 | mode_blk = (struct scsi_mode_blk_desc *)&mode_hdr[1]; |
| 2572 | |
| 2573 | /* it is safe to retry this */ |
| 2574 | scsi_mode_sense(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, FALSE, |
| 2575 | SMS_PAGE_CTRL_CURRENT, (params_to_get & SA_PARAM_COMPRESSION) ? |
| 2576 | cpage : SMS_VENDOR_SPECIFIC_PAGE, mode_buffer, mode_buffer_len, |
| 2577 | SSD_FULL_SIZE, SCSIOP_TIMEOUT); |
| 2578 | |
| 2579 | error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, |
| 2580 | &softc->device_stats); |
| 2581 | QFRLS(ccb); |
| 2582 | |
| 2583 | status = ccb->ccb_h.status & CAM_STATUS_MASK; |
| 2584 | |
| 2585 | if (error == EINVAL && (params_to_get & SA_PARAM_COMPRESSION) != 0) { |
| 2586 | /* |
| 2587 | * Hmm. Let's see if we can try another page... |
| 2588 | * If we've already done that, give up on compression |
| 2589 | * for this device and remember this for the future |
| 2590 | * and attempt the request without asking for compression |
| 2591 | * info. |
| 2592 | */ |
| 2593 | if (cpage == SA_DATA_COMPRESSION_PAGE) { |
| 2594 | cpage = SA_DEVICE_CONFIGURATION_PAGE; |
| 2595 | goto retry; |
| 2596 | } |
| 2597 | softc->quirks |= SA_QUIRK_NOCOMP; |
| 2598 | kfree(mode_buffer, M_SCSISA); |
| 2599 | goto retry; |
| 2600 | } else if (status == CAM_SCSI_STATUS_ERROR) { |
| 2601 | /* Tell the user about the fatal error. */ |
| 2602 | scsi_sense_print(&ccb->csio); |
| 2603 | goto sagetparamsexit; |
| 2604 | } |
| 2605 | |
| 2606 | /* |
| 2607 | * If the user only wants the compression information, and |
| 2608 | * the device doesn't send back the block descriptor, it's |
| 2609 | * no big deal. If the user wants more than just |
| 2610 | * compression, though, and the device doesn't pass back the |
| 2611 | * block descriptor, we need to send another mode sense to |
| 2612 | * get the block descriptor. |
| 2613 | */ |
| 2614 | if ((mode_hdr->blk_desc_len == 0) && |
| 2615 | (params_to_get & SA_PARAM_COMPRESSION) && |
| 2616 | (params_to_get & ~(SA_PARAM_COMPRESSION))) { |
| 2617 | |
| 2618 | /* |
| 2619 | * Decrease the mode buffer length by the size of |
| 2620 | * the compression page, to make sure the data |
| 2621 | * there doesn't get overwritten. |
| 2622 | */ |
| 2623 | mode_buffer_len -= sizeof (sa_comp_t); |
| 2624 | |
| 2625 | /* |
| 2626 | * Now move the compression page that we presumably |
| 2627 | * got back down the memory chunk a little bit so |
| 2628 | * it doesn't get spammed. |
| 2629 | */ |
| 2630 | bcopy(&mode_hdr[0], &mode_hdr[1], sizeof (sa_comp_t)); |
| 2631 | bzero(&mode_hdr[0], sizeof (mode_hdr[0])); |
| 2632 | |
| 2633 | /* |
| 2634 | * Now, we issue another mode sense and just ask |
| 2635 | * for the block descriptor, etc. |
| 2636 | */ |
| 2637 | |
| 2638 | scsi_mode_sense(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, FALSE, |
| 2639 | SMS_PAGE_CTRL_CURRENT, SMS_VENDOR_SPECIFIC_PAGE, |
| 2640 | mode_buffer, mode_buffer_len, SSD_FULL_SIZE, |
| 2641 | SCSIOP_TIMEOUT); |
| 2642 | |
| 2643 | error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, |
| 2644 | &softc->device_stats); |
| 2645 | QFRLS(ccb); |
| 2646 | |
| 2647 | if (error != 0) |
| 2648 | goto sagetparamsexit; |
| 2649 | } |
| 2650 | |
| 2651 | if (params_to_get & SA_PARAM_BLOCKSIZE) |
| 2652 | *blocksize = scsi_3btoul(mode_blk->blklen); |
| 2653 | |
| 2654 | if (params_to_get & SA_PARAM_NUMBLOCKS) |
| 2655 | *numblocks = scsi_3btoul(mode_blk->nblocks); |
| 2656 | |
| 2657 | if (params_to_get & SA_PARAM_BUFF_MODE) |
| 2658 | *buff_mode = mode_hdr->dev_spec & SMH_SA_BUF_MODE_MASK; |
| 2659 | |
| 2660 | if (params_to_get & SA_PARAM_DENSITY) |
| 2661 | *density = mode_blk->density; |
| 2662 | |
| 2663 | if (params_to_get & SA_PARAM_WP) |
| 2664 | *write_protect = (mode_hdr->dev_spec & SMH_SA_WP)? TRUE : FALSE; |
| 2665 | |
| 2666 | if (params_to_get & SA_PARAM_SPEED) |
| 2667 | *speed = mode_hdr->dev_spec & SMH_SA_SPEED_MASK; |
| 2668 | |
| 2669 | if (params_to_get & SA_PARAM_COMPRESSION) { |
| 2670 | sa_comp_t *ntcs = (sa_comp_t *) &mode_blk[1]; |
| 2671 | if (cpage == SA_DATA_COMPRESSION_PAGE) { |
| 2672 | struct scsi_data_compression_page *cp = &ntcs->dcomp; |
| 2673 | *comp_supported = |
| 2674 | (cp->dce_and_dcc & SA_DCP_DCC)? TRUE : FALSE; |
| 2675 | *comp_enabled = |
| 2676 | (cp->dce_and_dcc & SA_DCP_DCE)? TRUE : FALSE; |
| 2677 | *comp_algorithm = scsi_4btoul(cp->comp_algorithm); |
| 2678 | } else { |
| 2679 | struct scsi_dev_conf_page *cp = &ntcs->dconf; |
| 2680 | /* |
| 2681 | * We don't really know whether this device supports |
| 2682 | * Data Compression if the the algorithm field is |
| 2683 | * zero. Just say we do. |
| 2684 | */ |
| 2685 | *comp_supported = TRUE; |
| 2686 | *comp_enabled = |
| 2687 | (cp->sel_comp_alg != SA_COMP_NONE)? TRUE : FALSE; |
| 2688 | *comp_algorithm = cp->sel_comp_alg; |
| 2689 | } |
| 2690 | if (tcs != NULL) |
| 2691 | bcopy(ntcs, tcs, sizeof (sa_comp_t)); |
| 2692 | } |
| 2693 | |
| 2694 | if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) { |
| 2695 | int idx; |
| 2696 | char *xyz = mode_buffer; |
| 2697 | xpt_print_path(periph->path); |
| 2698 | kprintf("Mode Sense Data="); |
| 2699 | for (idx = 0; idx < mode_buffer_len; idx++) |
| 2700 | kprintf(" 0x%02x", xyz[idx] & 0xff); |
| 2701 | kprintf("\n"); |
| 2702 | } |
| 2703 | |
| 2704 | sagetparamsexit: |
| 2705 | |
| 2706 | xpt_release_ccb(ccb); |
| 2707 | kfree(mode_buffer, M_SCSISA); |
| 2708 | return (error); |
| 2709 | } |
| 2710 | |
| 2711 | /* |
| 2712 | * The purpose of this function is to set one of four different parameters |
| 2713 | * for a tape drive: |
| 2714 | * - blocksize |
| 2715 | * - density |
| 2716 | * - compression / compression algorithm |
| 2717 | * - buffering mode |
| 2718 | * |
| 2719 | * The assumption is that this will be called from saioctl(), and therefore |
| 2720 | * from a process context. Thus the waiting malloc calls below. If that |
| 2721 | * assumption ever changes, the malloc calls should be changed to be |
| 2722 | * NOWAIT mallocs. |
| 2723 | * |
| 2724 | * Any or all of the four parameters may be set when this function is |
| 2725 | * called. It should handle setting more than one parameter at once. |
| 2726 | */ |
| 2727 | static int |
| 2728 | sasetparams(struct cam_periph *periph, sa_params params_to_set, |
| 2729 | u_int32_t blocksize, u_int8_t density, u_int32_t calg, |
| 2730 | u_int32_t sense_flags) |
| 2731 | { |
| 2732 | struct sa_softc *softc; |
| 2733 | u_int32_t current_blocksize; |
| 2734 | u_int32_t current_calg; |
| 2735 | u_int8_t current_density; |
| 2736 | u_int8_t current_speed; |
| 2737 | int comp_enabled, comp_supported; |
| 2738 | void *mode_buffer; |
| 2739 | int mode_buffer_len; |
| 2740 | struct scsi_mode_header_6 *mode_hdr; |
| 2741 | struct scsi_mode_blk_desc *mode_blk; |
| 2742 | sa_comp_t *ccomp, *cpage; |
| 2743 | int buff_mode; |
| 2744 | union ccb *ccb = NULL; |
| 2745 | int error; |
| 2746 | |
| 2747 | softc = (struct sa_softc *)periph->softc; |
| 2748 | |
| 2749 | ccomp = kmalloc(sizeof (sa_comp_t), M_SCSISA, M_INTWAIT); |
| 2750 | |
| 2751 | /* |
| 2752 | * Since it doesn't make sense to set the number of blocks, or |
| 2753 | * write protection, we won't try to get the current value. We |
| 2754 | * always want to get the blocksize, so we can set it back to the |
| 2755 | * proper value. |
| 2756 | */ |
| 2757 | error = sagetparams(periph, |
| 2758 | params_to_set | SA_PARAM_BLOCKSIZE | SA_PARAM_SPEED, |
| 2759 | ¤t_blocksize, ¤t_density, NULL, &buff_mode, NULL, |
| 2760 | ¤t_speed, &comp_supported, &comp_enabled, |
| 2761 | ¤t_calg, ccomp); |
| 2762 | |
| 2763 | if (error != 0) { |
| 2764 | kfree(ccomp, M_SCSISA); |
| 2765 | return (error); |
| 2766 | } |
| 2767 | |
| 2768 | mode_buffer_len = sizeof(*mode_hdr) + sizeof(*mode_blk); |
| 2769 | if (params_to_set & SA_PARAM_COMPRESSION) |
| 2770 | mode_buffer_len += sizeof (sa_comp_t); |
| 2771 | |
| 2772 | mode_buffer = kmalloc(mode_buffer_len, M_SCSISA, M_INTWAIT | M_ZERO); |
| 2773 | |
| 2774 | mode_hdr = (struct scsi_mode_header_6 *)mode_buffer; |
| 2775 | mode_blk = (struct scsi_mode_blk_desc *)&mode_hdr[1]; |
| 2776 | |
| 2777 | ccb = cam_periph_getccb(periph, 1); |
| 2778 | |
| 2779 | retry: |
| 2780 | |
| 2781 | if (params_to_set & SA_PARAM_COMPRESSION) { |
| 2782 | if (mode_blk) { |
| 2783 | cpage = (sa_comp_t *)&mode_blk[1]; |
| 2784 | } else { |
| 2785 | cpage = (sa_comp_t *)&mode_hdr[1]; |
| 2786 | } |
| 2787 | bcopy(ccomp, cpage, sizeof (sa_comp_t)); |
| 2788 | cpage->hdr.pagecode &= ~0x80; |
| 2789 | } else |
| 2790 | cpage = NULL; |
| 2791 | |
| 2792 | /* |
| 2793 | * If the caller wants us to set the blocksize, use the one they |
| 2794 | * pass in. Otherwise, use the blocksize we got back from the |
| 2795 | * mode select above. |
| 2796 | */ |
| 2797 | if (mode_blk) { |
| 2798 | if (params_to_set & SA_PARAM_BLOCKSIZE) |
| 2799 | scsi_ulto3b(blocksize, mode_blk->blklen); |
| 2800 | else |
| 2801 | scsi_ulto3b(current_blocksize, mode_blk->blklen); |
| 2802 | |
| 2803 | /* |
| 2804 | * Set density if requested, else preserve old density. |
| 2805 | * SCSI_SAME_DENSITY only applies to SCSI-2 or better |
| 2806 | * devices, else density we've latched up in our softc. |
| 2807 | */ |
| 2808 | if (params_to_set & SA_PARAM_DENSITY) { |
| 2809 | mode_blk->density = density; |
| 2810 | } else if (softc->scsi_rev > SCSI_REV_CCS) { |
| 2811 | mode_blk->density = SCSI_SAME_DENSITY; |
| 2812 | } else { |
| 2813 | mode_blk->density = softc->media_density; |
| 2814 | } |
| 2815 | } |
| 2816 | |
| 2817 | /* |
| 2818 | * For mode selects, these two fields must be zero. |
| 2819 | */ |
| 2820 | mode_hdr->data_length = 0; |
| 2821 | mode_hdr->medium_type = 0; |
| 2822 | |
| 2823 | /* set the speed to the current value */ |
| 2824 | mode_hdr->dev_spec = current_speed; |
| 2825 | |
| 2826 | /* if set, set single-initiator buffering mode */ |
| 2827 | if (softc->buffer_mode == SMH_SA_BUF_MODE_SIBUF) { |
| 2828 | mode_hdr->dev_spec |= SMH_SA_BUF_MODE_SIBUF; |
| 2829 | } |
| 2830 | |
| 2831 | if (mode_blk) |
| 2832 | mode_hdr->blk_desc_len = sizeof(struct scsi_mode_blk_desc); |
| 2833 | else |
| 2834 | mode_hdr->blk_desc_len = 0; |
| 2835 | |
| 2836 | /* |
| 2837 | * First, if the user wants us to set the compression algorithm or |
| 2838 | * just turn compression on, check to make sure that this drive |
| 2839 | * supports compression. |
| 2840 | */ |
| 2841 | if (params_to_set & SA_PARAM_COMPRESSION) { |
| 2842 | /* |
| 2843 | * If the compression algorithm is 0, disable compression. |
| 2844 | * If the compression algorithm is non-zero, enable |
| 2845 | * compression and set the compression type to the |
| 2846 | * specified compression algorithm, unless the algorithm is |
| 2847 | * MT_COMP_ENABLE. In that case, we look at the |
| 2848 | * compression algorithm that is currently set and if it is |
| 2849 | * non-zero, we leave it as-is. If it is zero, and we have |
| 2850 | * saved a compression algorithm from a time when |
| 2851 | * compression was enabled before, set the compression to |
| 2852 | * the saved value. |
| 2853 | */ |
| 2854 | switch (ccomp->hdr.pagecode & ~0x80) { |
| 2855 | case SA_DEVICE_CONFIGURATION_PAGE: |
| 2856 | { |
| 2857 | struct scsi_dev_conf_page *dcp = &cpage->dconf; |
| 2858 | if (calg == 0) { |
| 2859 | dcp->sel_comp_alg = SA_COMP_NONE; |
| 2860 | break; |
| 2861 | } |
| 2862 | if (calg != MT_COMP_ENABLE) { |
| 2863 | dcp->sel_comp_alg = calg; |
| 2864 | } else if (dcp->sel_comp_alg == SA_COMP_NONE && |
| 2865 | softc->saved_comp_algorithm != 0) { |
| 2866 | dcp->sel_comp_alg = softc->saved_comp_algorithm; |
| 2867 | } |
| 2868 | break; |
| 2869 | } |
| 2870 | case SA_DATA_COMPRESSION_PAGE: |
| 2871 | if (ccomp->dcomp.dce_and_dcc & SA_DCP_DCC) { |
| 2872 | struct scsi_data_compression_page *dcp = &cpage->dcomp; |
| 2873 | if (calg == 0) { |
| 2874 | /* |
| 2875 | * Disable compression, but leave the |
| 2876 | * decompression and the capability bit |
| 2877 | * alone. |
| 2878 | */ |
| 2879 | dcp->dce_and_dcc = SA_DCP_DCC; |
| 2880 | dcp->dde_and_red |= SA_DCP_DDE; |
| 2881 | break; |
| 2882 | } |
| 2883 | /* enable compression && decompression */ |
| 2884 | dcp->dce_and_dcc = SA_DCP_DCE | SA_DCP_DCC; |
| 2885 | dcp->dde_and_red |= SA_DCP_DDE; |
| 2886 | /* |
| 2887 | * If there, use compression algorithm from caller. |
| 2888 | * Otherwise, if there's a saved compression algorithm |
| 2889 | * and there is no current algorithm, use the saved |
| 2890 | * algorithm. Else parrot back what we got and hope |
| 2891 | * for the best. |
| 2892 | */ |
| 2893 | if (calg != MT_COMP_ENABLE) { |
| 2894 | scsi_ulto4b(calg, dcp->comp_algorithm); |
| 2895 | scsi_ulto4b(calg, dcp->decomp_algorithm); |
| 2896 | } else if (scsi_4btoul(dcp->comp_algorithm) == 0 && |
| 2897 | softc->saved_comp_algorithm != 0) { |
| 2898 | scsi_ulto4b(softc->saved_comp_algorithm, |
| 2899 | dcp->comp_algorithm); |
| 2900 | scsi_ulto4b(softc->saved_comp_algorithm, |
| 2901 | dcp->decomp_algorithm); |
| 2902 | } |
| 2903 | break; |
| 2904 | } |
| 2905 | /* |
| 2906 | * Compression does not appear to be supported- |
| 2907 | * at least via the DATA COMPRESSION page. It |
| 2908 | * would be too much to ask us to believe that |
| 2909 | * the page itself is supported, but incorrectly |
| 2910 | * reports an ability to manipulate data compression, |
| 2911 | * so we'll assume that this device doesn't support |
| 2912 | * compression. We can just fall through for that. |
| 2913 | */ |
| 2914 | /* FALLTHROUGH */ |
| 2915 | default: |
| 2916 | /* |
| 2917 | * The drive doesn't seem to support compression, |
| 2918 | * so turn off the set compression bit. |
| 2919 | */ |
| 2920 | params_to_set &= ~SA_PARAM_COMPRESSION; |
| 2921 | xpt_print(periph->path, |
| 2922 | "device does not seem to support compression\n"); |
| 2923 | |
| 2924 | /* |
| 2925 | * If that was the only thing the user wanted us to set, |
| 2926 | * clean up allocated resources and return with |
| 2927 | * 'operation not supported'. |
| 2928 | */ |
| 2929 | if (params_to_set == SA_PARAM_NONE) { |
| 2930 | kfree(mode_buffer, M_SCSISA); |
| 2931 | xpt_release_ccb(ccb); |
| 2932 | return (ENODEV); |
| 2933 | } |
| 2934 | |
| 2935 | /* |
| 2936 | * That wasn't the only thing the user wanted us to set. |
| 2937 | * So, decrease the stated mode buffer length by the |
| 2938 | * size of the compression mode page. |
| 2939 | */ |
| 2940 | mode_buffer_len -= sizeof(sa_comp_t); |
| 2941 | } |
| 2942 | } |
| 2943 | |
| 2944 | /* It is safe to retry this operation */ |
| 2945 | scsi_mode_select(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, |
| 2946 | (params_to_set & SA_PARAM_COMPRESSION)? TRUE : FALSE, |
| 2947 | FALSE, mode_buffer, mode_buffer_len, SSD_FULL_SIZE, SCSIOP_TIMEOUT); |
| 2948 | |
| 2949 | error = cam_periph_runccb(ccb, saerror, 0, |
| 2950 | sense_flags, &softc->device_stats); |
| 2951 | QFRLS(ccb); |
| 2952 | |
| 2953 | if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) { |
| 2954 | int idx; |
| 2955 | char *xyz = mode_buffer; |
| 2956 | xpt_print_path(periph->path); |
| 2957 | kprintf("Err%d, Mode Select Data=", error); |
| 2958 | for (idx = 0; idx < mode_buffer_len; idx++) |
| 2959 | kprintf(" 0x%02x", xyz[idx] & 0xff); |
| 2960 | kprintf("\n"); |
| 2961 | } |
| 2962 | |
| 2963 | |
| 2964 | if (error) { |
| 2965 | /* |
| 2966 | * If we can, try without setting density/blocksize. |
| 2967 | */ |
| 2968 | if (mode_blk) { |
| 2969 | if ((params_to_set & |
| 2970 | (SA_PARAM_DENSITY|SA_PARAM_BLOCKSIZE)) == 0) { |
| 2971 | mode_blk = NULL; |
| 2972 | goto retry; |
| 2973 | } |
| 2974 | } else { |
| 2975 | mode_blk = (struct scsi_mode_blk_desc *)&mode_hdr[1]; |
| 2976 | cpage = (sa_comp_t *)&mode_blk[1]; |
| 2977 | } |
| 2978 | |
| 2979 | /* |
| 2980 | * If we were setting the blocksize, and that failed, we |
| 2981 | * want to set it to its original value. If we weren't |
| 2982 | * setting the blocksize, we don't want to change it. |
| 2983 | */ |
| 2984 | scsi_ulto3b(current_blocksize, mode_blk->blklen); |
| 2985 | |
| 2986 | /* |
| 2987 | * Set density if requested, else preserve old density. |
| 2988 | * SCSI_SAME_DENSITY only applies to SCSI-2 or better |
| 2989 | * devices, else density we've latched up in our softc. |
| 2990 | */ |
| 2991 | if (params_to_set & SA_PARAM_DENSITY) { |
| 2992 | mode_blk->density = current_density; |
| 2993 | } else if (softc->scsi_rev > SCSI_REV_CCS) { |
| 2994 | mode_blk->density = SCSI_SAME_DENSITY; |
| 2995 | } else { |
| 2996 | mode_blk->density = softc->media_density; |
| 2997 | } |
| 2998 | |
| 2999 | if (params_to_set & SA_PARAM_COMPRESSION) |
| 3000 | bcopy(ccomp, cpage, sizeof (sa_comp_t)); |
| 3001 | |
| 3002 | /* |
| 3003 | * The retry count is the only CCB field that might have been |
| 3004 | * changed that we care about, so reset it back to 1. |
| 3005 | */ |
| 3006 | ccb->ccb_h.retry_count = 1; |
| 3007 | cam_periph_runccb(ccb, saerror, 0, sense_flags, |
| 3008 | &softc->device_stats); |
| 3009 | QFRLS(ccb); |
| 3010 | } |
| 3011 | |
| 3012 | xpt_release_ccb(ccb); |
| 3013 | |
| 3014 | if (ccomp != NULL) |
| 3015 | kfree(ccomp, M_SCSISA); |
| 3016 | |
| 3017 | if (params_to_set & SA_PARAM_COMPRESSION) { |
| 3018 | if (error) { |
| 3019 | softc->flags &= ~SA_FLAG_COMP_ENABLED; |
| 3020 | /* |
| 3021 | * Even if we get an error setting compression, |
| 3022 | * do not say that we don't support it. We could |
| 3023 | * have been wrong, or it may be media specific. |
| 3024 | * softc->flags &= ~SA_FLAG_COMP_SUPP; |
| 3025 | */ |
| 3026 | softc->saved_comp_algorithm = softc->comp_algorithm; |
| 3027 | softc->comp_algorithm = 0; |
| 3028 | } else { |
| 3029 | softc->flags |= SA_FLAG_COMP_ENABLED; |
| 3030 | softc->comp_algorithm = calg; |
| 3031 | } |
| 3032 | } |
| 3033 | |
| 3034 | kfree(mode_buffer, M_SCSISA); |
| 3035 | return (error); |
| 3036 | } |
| 3037 | |
| 3038 | static void |
| 3039 | saprevent(struct cam_periph *periph, int action) |
| 3040 | { |
| 3041 | struct sa_softc *softc; |
| 3042 | union ccb *ccb; |
| 3043 | int error, sf; |
| 3044 | |
| 3045 | softc = (struct sa_softc *)periph->softc; |
| 3046 | |
| 3047 | if ((action == PR_ALLOW) && (softc->flags & SA_FLAG_TAPE_LOCKED) == 0) |
| 3048 | return; |
| 3049 | if ((action == PR_PREVENT) && (softc->flags & SA_FLAG_TAPE_LOCKED) != 0) |
| 3050 | return; |
| 3051 | |
| 3052 | /* |
| 3053 | * We can be quiet about illegal requests. |
| 3054 | */ |
| 3055 | if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) { |
| 3056 | sf = 0; |
| 3057 | } else |
| 3058 | sf = SF_QUIET_IR; |
| 3059 | |
| 3060 | ccb = cam_periph_getccb(periph, 1); |
| 3061 | |
| 3062 | /* It is safe to retry this operation */ |
| 3063 | scsi_prevent(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, action, |
| 3064 | SSD_FULL_SIZE, SCSIOP_TIMEOUT); |
| 3065 | |
| 3066 | error = cam_periph_runccb(ccb, saerror, 0, sf, &softc->device_stats); |
| 3067 | QFRLS(ccb); |
| 3068 | if (error == 0) { |
| 3069 | if (action == PR_ALLOW) |
| 3070 | softc->flags &= ~SA_FLAG_TAPE_LOCKED; |
| 3071 | else |
| 3072 | softc->flags |= SA_FLAG_TAPE_LOCKED; |
| 3073 | } |
| 3074 | |
| 3075 | xpt_release_ccb(ccb); |
| 3076 | } |
| 3077 | |
| 3078 | static int |
| 3079 | sarewind(struct cam_periph *periph) |
| 3080 | { |
| 3081 | union ccb *ccb; |
| 3082 | struct sa_softc *softc; |
| 3083 | int error; |
| 3084 | |
| 3085 | softc = (struct sa_softc *)periph->softc; |
| 3086 | |
| 3087 | ccb = cam_periph_getccb(periph, 1); |
| 3088 | |
| 3089 | /* It is safe to retry this operation */ |
| 3090 | scsi_rewind(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, FALSE, |
| 3091 | SSD_FULL_SIZE, REWIND_TIMEOUT); |
| 3092 | |
| 3093 | softc->dsreg = MTIO_DSREG_REW; |
| 3094 | error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats); |
| 3095 | softc->dsreg = MTIO_DSREG_REST; |
| 3096 | |
| 3097 | if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) |
| 3098 | cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE); |
| 3099 | |
| 3100 | xpt_release_ccb(ccb); |
| 3101 | if (error == 0) |
| 3102 | softc->fileno = softc->blkno = (daddr_t) 0; |
| 3103 | else |
| 3104 | softc->fileno = softc->blkno = (daddr_t) -1; |
| 3105 | return (error); |
| 3106 | } |
| 3107 | |
| 3108 | static int |
| 3109 | saspace(struct cam_periph *periph, int count, scsi_space_code code) |
| 3110 | { |
| 3111 | union ccb *ccb; |
| 3112 | struct sa_softc *softc; |
| 3113 | int error; |
| 3114 | |
| 3115 | softc = (struct sa_softc *)periph->softc; |
| 3116 | |
| 3117 | ccb = cam_periph_getccb(periph, 1); |
| 3118 | |
| 3119 | /* This cannot be retried */ |
| 3120 | |
| 3121 | scsi_space(&ccb->csio, 0, sadone, MSG_SIMPLE_Q_TAG, code, count, |
| 3122 | SSD_FULL_SIZE, SPACE_TIMEOUT); |
| 3123 | |
| 3124 | /* |
| 3125 | * Clear residual because we will be using it. |
| 3126 | */ |
| 3127 | softc->last_ctl_resid = 0; |
| 3128 | |
| 3129 | softc->dsreg = (count < 0)? MTIO_DSREG_REV : MTIO_DSREG_FWD; |
| 3130 | error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats); |
| 3131 | softc->dsreg = MTIO_DSREG_REST; |
| 3132 | |
| 3133 | if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) |
| 3134 | cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE); |
| 3135 | |
| 3136 | xpt_release_ccb(ccb); |
| 3137 | |
| 3138 | /* |
| 3139 | * If a spacing operation has failed, we need to invalidate |
| 3140 | * this mount. |
| 3141 | * |
| 3142 | * If the spacing operation was setmarks or to end of recorded data, |
| 3143 | * we no longer know our relative position. |
| 3144 | * |
| 3145 | * If the spacing operations was spacing files in reverse, we |
| 3146 | * take account of the residual, but still check against less |
| 3147 | * than zero- if we've gone negative, we must have hit BOT. |
| 3148 | * |
| 3149 | * If the spacing operations was spacing records in reverse and |
| 3150 | * we have a residual, we've either hit BOT or hit a filemark. |
| 3151 | * In the former case, we know our new record number (0). In |
| 3152 | * the latter case, we have absolutely no idea what the real |
| 3153 | * record number is- we've stopped between the end of the last |
| 3154 | * record in the previous file and the filemark that stopped |
| 3155 | * our spacing backwards. |
| 3156 | */ |
| 3157 | if (error) { |
| 3158 | softc->fileno = softc->blkno = (daddr_t) -1; |
| 3159 | } else if (code == SS_SETMARKS || code == SS_EOD) { |
| 3160 | softc->fileno = softc->blkno = (daddr_t) -1; |
| 3161 | } else if (code == SS_FILEMARKS && softc->fileno != (daddr_t) -1) { |
| 3162 | softc->fileno += (count - softc->last_ctl_resid); |
| 3163 | if (softc->fileno < 0) /* we must of hit BOT */ |
| 3164 | softc->fileno = 0; |
| 3165 | softc->blkno = 0; |
| 3166 | } else if (code == SS_BLOCKS && softc->blkno != (daddr_t) -1) { |
| 3167 | softc->blkno += (count - softc->last_ctl_resid); |
| 3168 | if (count < 0) { |
| 3169 | if (softc->last_ctl_resid || softc->blkno < 0) { |
| 3170 | if (softc->fileno == 0) { |
| 3171 | softc->blkno = 0; |
| 3172 | } else { |
| 3173 | softc->blkno = (daddr_t) -1; |
| 3174 | } |
| 3175 | } |
| 3176 | } |
| 3177 | } |
| 3178 | return (error); |
| 3179 | } |
| 3180 | |
| 3181 | static int |
| 3182 | sawritefilemarks(struct cam_periph *periph, int nmarks, int setmarks) |
| 3183 | { |
| 3184 | union ccb *ccb; |
| 3185 | struct sa_softc *softc; |
| 3186 | int error, nwm = 0; |
| 3187 | |
| 3188 | softc = (struct sa_softc *)periph->softc; |
| 3189 | if (softc->open_rdonly) |
| 3190 | return (EBADF); |
| 3191 | |
| 3192 | ccb = cam_periph_getccb(periph, 1); |
| 3193 | /* |
| 3194 | * Clear residual because we will be using it. |
| 3195 | */ |
| 3196 | softc->last_ctl_resid = 0; |
| 3197 | |
| 3198 | softc->dsreg = MTIO_DSREG_FMK; |
| 3199 | /* this *must* not be retried */ |
| 3200 | scsi_write_filemarks(&ccb->csio, 0, sadone, MSG_SIMPLE_Q_TAG, |
| 3201 | FALSE, setmarks, nmarks, SSD_FULL_SIZE, IO_TIMEOUT); |
| 3202 | softc->dsreg = MTIO_DSREG_REST; |
| 3203 | |
| 3204 | |
| 3205 | error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats); |
| 3206 | |
| 3207 | if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) |
| 3208 | cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE); |
| 3209 | |
| 3210 | if (error == 0 && nmarks) { |
| 3211 | struct sa_softc *softc = (struct sa_softc *)periph->softc; |
| 3212 | nwm = nmarks - softc->last_ctl_resid; |
| 3213 | softc->filemarks += nwm; |
| 3214 | } |
| 3215 | |
| 3216 | xpt_release_ccb(ccb); |
| 3217 | |
| 3218 | /* |
| 3219 | * Update relative positions (if we're doing that). |
| 3220 | */ |
| 3221 | if (error) { |
| 3222 | softc->fileno = softc->blkno = (daddr_t) -1; |
| 3223 | } else if (softc->fileno != (daddr_t) -1) { |
| 3224 | softc->fileno += nwm; |
| 3225 | softc->blkno = 0; |
| 3226 | } |
| 3227 | return (error); |
| 3228 | } |
| 3229 | |
| 3230 | static int |
| 3231 | sardpos(struct cam_periph *periph, int hard, u_int32_t *blkptr) |
| 3232 | { |
| 3233 | struct scsi_tape_position_data loc; |
| 3234 | union ccb *ccb; |
| 3235 | struct sa_softc *softc = (struct sa_softc *)periph->softc; |
| 3236 | int error; |
| 3237 | |
| 3238 | /* |
| 3239 | * We try and flush any buffered writes here if we were writing |
| 3240 | * and we're trying to get hardware block position. It eats |
| 3241 | * up performance substantially, but I'm wary of drive firmware. |
| 3242 | * |
| 3243 | * I think that *logical* block position is probably okay- |
| 3244 | * but hardware block position might have to wait for data |
| 3245 | * to hit media to be valid. Caveat Emptor. |
| 3246 | */ |
| 3247 | |
| 3248 | if (hard && (softc->flags & SA_FLAG_TAPE_WRITTEN)) { |
| 3249 | error = sawritefilemarks(periph, 0, 0); |
| 3250 | if (error && error != EACCES) |
| 3251 | return (error); |
| 3252 | } |
| 3253 | |
| 3254 | ccb = cam_periph_getccb(periph, 1); |
| 3255 | scsi_read_position(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG, |
| 3256 | hard, &loc, SSD_FULL_SIZE, SCSIOP_TIMEOUT); |
| 3257 | softc->dsreg = MTIO_DSREG_RBSY; |
| 3258 | error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats); |
| 3259 | softc->dsreg = MTIO_DSREG_REST; |
| 3260 | if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) |
| 3261 | cam_release_devq(ccb->ccb_h.path, 0, 0, 0, 0); |
| 3262 | |
| 3263 | if (error == 0) { |
| 3264 | if (loc.flags & SA_RPOS_UNCERTAIN) { |
| 3265 | error = EINVAL; /* nothing is certain */ |
| 3266 | } else { |
| 3267 | *blkptr = scsi_4btoul(loc.firstblk); |
| 3268 | } |
| 3269 | } |
| 3270 | |
| 3271 | xpt_release_ccb(ccb); |
| 3272 | return (error); |
| 3273 | } |
| 3274 | |
| 3275 | static int |
| 3276 | sasetpos(struct cam_periph *periph, int hard, u_int32_t *blkptr) |
| 3277 | { |
| 3278 | union ccb *ccb; |
| 3279 | struct sa_softc *softc; |
| 3280 | int error; |
| 3281 | |
| 3282 | /* |
| 3283 | * We used to try and flush any buffered writes here. |
| 3284 | * Now we push this onto user applications to either |
| 3285 | * flush the pending writes themselves (via a zero count |
| 3286 | * WRITE FILEMARKS command) or they can trust their tape |
| 3287 | * drive to do this correctly for them. |
| 3288 | */ |
| 3289 | |
| 3290 | softc = (struct sa_softc *)periph->softc; |
| 3291 | ccb = cam_periph_getccb(periph, 1); |
| 3292 | |
| 3293 | |
| 3294 | scsi_set_position(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG, |
| 3295 | hard, *blkptr, SSD_FULL_SIZE, SPACE_TIMEOUT); |
| 3296 | |
| 3297 | |
| 3298 | softc->dsreg = MTIO_DSREG_POS; |
| 3299 | error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats); |
| 3300 | softc->dsreg = MTIO_DSREG_REST; |
| 3301 | if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) |
| 3302 | cam_release_devq(ccb->ccb_h.path, 0, 0, 0, 0); |
| 3303 | xpt_release_ccb(ccb); |
| 3304 | /* |
| 3305 | * Note relative file && block number position as now unknown. |
| 3306 | */ |
| 3307 | softc->fileno = softc->blkno = (daddr_t) -1; |
| 3308 | return (error); |
| 3309 | } |
| 3310 | |
| 3311 | static int |
| 3312 | saretension(struct cam_periph *periph) |
| 3313 | { |
| 3314 | union ccb *ccb; |
| 3315 | struct sa_softc *softc; |
| 3316 | int error; |
| 3317 | |
| 3318 | softc = (struct sa_softc *)periph->softc; |
| 3319 | |
| 3320 | ccb = cam_periph_getccb(periph, 1); |
| 3321 | |
| 3322 | /* It is safe to retry this operation */ |
| 3323 | scsi_load_unload(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, FALSE, |
| 3324 | FALSE, TRUE, TRUE, SSD_FULL_SIZE, ERASE_TIMEOUT); |
| 3325 | |
| 3326 | softc->dsreg = MTIO_DSREG_TEN; |
| 3327 | error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats); |
| 3328 | softc->dsreg = MTIO_DSREG_REST; |
| 3329 | |
| 3330 | if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) |
| 3331 | cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE); |
| 3332 | xpt_release_ccb(ccb); |
| 3333 | if (error == 0) |
| 3334 | softc->fileno = softc->blkno = (daddr_t) 0; |
| 3335 | else |
| 3336 | softc->fileno = softc->blkno = (daddr_t) -1; |
| 3337 | return (error); |
| 3338 | } |
| 3339 | |
| 3340 | static int |
| 3341 | sareservereleaseunit(struct cam_periph *periph, int reserve) |
| 3342 | { |
| 3343 | union ccb *ccb; |
| 3344 | struct sa_softc *softc; |
| 3345 | int error; |
| 3346 | |
| 3347 | softc = (struct sa_softc *)periph->softc; |
| 3348 | ccb = cam_periph_getccb(periph, 1); |
| 3349 | |
| 3350 | /* It is safe to retry this operation */ |
| 3351 | scsi_reserve_release_unit(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, |
| 3352 | FALSE, 0, SSD_FULL_SIZE, SCSIOP_TIMEOUT, reserve); |
| 3353 | softc->dsreg = MTIO_DSREG_RBSY; |
| 3354 | error = cam_periph_runccb(ccb, saerror, 0, |
| 3355 | SF_RETRY_UA | SF_NO_PRINT, &softc->device_stats); |
| 3356 | softc->dsreg = MTIO_DSREG_REST; |
| 3357 | QFRLS(ccb); |
| 3358 | xpt_release_ccb(ccb); |
| 3359 | |
| 3360 | /* |
| 3361 | * If the error was Illegal Request, then the device doesn't support |
| 3362 | * RESERVE/RELEASE. This is not an error. |
| 3363 | */ |
| 3364 | if (error == EINVAL) { |
| 3365 | error = 0; |
| 3366 | } |
| 3367 | |
| 3368 | return (error); |
| 3369 | } |
| 3370 | |
| 3371 | static int |
| 3372 | saloadunload(struct cam_periph *periph, int load) |
| 3373 | { |
| 3374 | union ccb *ccb; |
| 3375 | struct sa_softc *softc; |
| 3376 | int error; |
| 3377 | |
| 3378 | softc = (struct sa_softc *)periph->softc; |
| 3379 | |
| 3380 | ccb = cam_periph_getccb(periph, 1); |
| 3381 | |
| 3382 | /* It is safe to retry this operation */ |
| 3383 | scsi_load_unload(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, FALSE, |
| 3384 | FALSE, FALSE, load, SSD_FULL_SIZE, REWIND_TIMEOUT); |
| 3385 | |
| 3386 | softc->dsreg = (load)? MTIO_DSREG_LD : MTIO_DSREG_UNL; |
| 3387 | error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats); |
| 3388 | softc->dsreg = MTIO_DSREG_REST; |
| 3389 | QFRLS(ccb); |
| 3390 | xpt_release_ccb(ccb); |
| 3391 | |
| 3392 | if (error || load == 0) |
| 3393 | softc->fileno = softc->blkno = (daddr_t) -1; |
| 3394 | else if (error == 0) |
| 3395 | softc->fileno = softc->blkno = (daddr_t) 0; |
| 3396 | return (error); |
| 3397 | } |
| 3398 | |
| 3399 | static int |
| 3400 | saerase(struct cam_periph *periph, int longerase) |
| 3401 | { |
| 3402 | |
| 3403 | union ccb *ccb; |
| 3404 | struct sa_softc *softc; |
| 3405 | int error; |
| 3406 | |
| 3407 | softc = (struct sa_softc *)periph->softc; |
| 3408 | if (softc->open_rdonly) |
| 3409 | return (EBADF); |
| 3410 | |
| 3411 | ccb = cam_periph_getccb(periph, 1); |
| 3412 | |
| 3413 | scsi_erase(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG, FALSE, longerase, |
| 3414 | SSD_FULL_SIZE, ERASE_TIMEOUT); |
| 3415 | |
| 3416 | softc->dsreg = MTIO_DSREG_ZER; |
| 3417 | error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats); |
| 3418 | softc->dsreg = MTIO_DSREG_REST; |
| 3419 | |
| 3420 | if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) |
| 3421 | cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE); |
| 3422 | xpt_release_ccb(ccb); |
| 3423 | return (error); |
| 3424 | } |
| 3425 | |
| 3426 | #endif /* _KERNEL */ |
| 3427 | |
| 3428 | /* |
| 3429 | * Read tape block limits command. |
| 3430 | */ |
| 3431 | void |
| 3432 | scsi_read_block_limits(struct ccb_scsiio *csio, u_int32_t retries, |
| 3433 | void (*cbfcnp)(struct cam_periph *, union ccb *), |
| 3434 | u_int8_t tag_action, |
| 3435 | struct scsi_read_block_limits_data *rlimit_buf, |
| 3436 | u_int8_t sense_len, u_int32_t timeout) |
| 3437 | { |
| 3438 | struct scsi_read_block_limits *scsi_cmd; |
| 3439 | |
| 3440 | cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_IN, tag_action, |
| 3441 | (u_int8_t *)rlimit_buf, sizeof(*rlimit_buf), sense_len, |
| 3442 | sizeof(*scsi_cmd), timeout); |
| 3443 | |
| 3444 | scsi_cmd = (struct scsi_read_block_limits *)&csio->cdb_io.cdb_bytes; |
| 3445 | bzero(scsi_cmd, sizeof(*scsi_cmd)); |
| 3446 | scsi_cmd->opcode = READ_BLOCK_LIMITS; |
| 3447 | } |
| 3448 | |
| 3449 | void |
| 3450 | scsi_sa_read_write(struct ccb_scsiio *csio, u_int32_t retries, |
| 3451 | void (*cbfcnp)(struct cam_periph *, union ccb *), |
| 3452 | u_int8_t tag_action, int readop, int sli, |
| 3453 | int fixed, u_int32_t length, u_int8_t *data_ptr, |
| 3454 | u_int32_t dxfer_len, u_int8_t sense_len, u_int32_t timeout) |
| 3455 | { |
| 3456 | struct scsi_sa_rw *scsi_cmd; |
| 3457 | |
| 3458 | scsi_cmd = (struct scsi_sa_rw *)&csio->cdb_io.cdb_bytes; |
| 3459 | scsi_cmd->opcode = readop ? SA_READ : SA_WRITE; |
| 3460 | scsi_cmd->sli_fixed = 0; |
| 3461 | if (sli && readop) |
| 3462 | scsi_cmd->sli_fixed |= SAR_SLI; |
| 3463 | if (fixed) |
| 3464 | scsi_cmd->sli_fixed |= SARW_FIXED; |
| 3465 | scsi_ulto3b(length, scsi_cmd->length); |
| 3466 | scsi_cmd->control = 0; |
| 3467 | |
| 3468 | cam_fill_csio(csio, retries, cbfcnp, readop ? CAM_DIR_IN : CAM_DIR_OUT, |
| 3469 | tag_action, data_ptr, dxfer_len, sense_len, |
| 3470 | sizeof(*scsi_cmd), timeout); |
| 3471 | } |
| 3472 | |
| 3473 | void |
| 3474 | scsi_load_unload(struct ccb_scsiio *csio, u_int32_t retries, |
| 3475 | void (*cbfcnp)(struct cam_periph *, union ccb *), |
| 3476 | u_int8_t tag_action, int immediate, int eot, |
| 3477 | int reten, int load, u_int8_t sense_len, |
| 3478 | u_int32_t timeout) |
| 3479 | { |
| 3480 | struct scsi_load_unload *scsi_cmd; |
| 3481 | |
| 3482 | scsi_cmd = (struct scsi_load_unload *)&csio->cdb_io.cdb_bytes; |
| 3483 | bzero(scsi_cmd, sizeof(*scsi_cmd)); |
| 3484 | scsi_cmd->opcode = LOAD_UNLOAD; |
| 3485 | if (immediate) |
| 3486 | scsi_cmd->immediate = SLU_IMMED; |
| 3487 | if (eot) |
| 3488 | scsi_cmd->eot_reten_load |= SLU_EOT; |
| 3489 | if (reten) |
| 3490 | scsi_cmd->eot_reten_load |= SLU_RETEN; |
| 3491 | if (load) |
| 3492 | scsi_cmd->eot_reten_load |= SLU_LOAD; |
| 3493 | |
| 3494 | cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, |
| 3495 | NULL, 0, sense_len, sizeof(*scsi_cmd), timeout); |
| 3496 | } |
| 3497 | |
| 3498 | void |
| 3499 | scsi_rewind(struct ccb_scsiio *csio, u_int32_t retries, |
| 3500 | void (*cbfcnp)(struct cam_periph *, union ccb *), |
| 3501 | u_int8_t tag_action, int immediate, u_int8_t sense_len, |
| 3502 | u_int32_t timeout) |
| 3503 | { |
| 3504 | struct scsi_rewind *scsi_cmd; |
| 3505 | |
| 3506 | scsi_cmd = (struct scsi_rewind *)&csio->cdb_io.cdb_bytes; |
| 3507 | bzero(scsi_cmd, sizeof(*scsi_cmd)); |
| 3508 | scsi_cmd->opcode = REWIND; |
| 3509 | if (immediate) |
| 3510 | scsi_cmd->immediate = SREW_IMMED; |
| 3511 | |
| 3512 | cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL, |
| 3513 | 0, sense_len, sizeof(*scsi_cmd), timeout); |
| 3514 | } |
| 3515 | |
| 3516 | void |
| 3517 | scsi_space(struct ccb_scsiio *csio, u_int32_t retries, |
| 3518 | void (*cbfcnp)(struct cam_periph *, union ccb *), |
| 3519 | u_int8_t tag_action, scsi_space_code code, |
| 3520 | u_int32_t count, u_int8_t sense_len, u_int32_t timeout) |
| 3521 | { |
| 3522 | struct scsi_space *scsi_cmd; |
| 3523 | |
| 3524 | scsi_cmd = (struct scsi_space *)&csio->cdb_io.cdb_bytes; |
| 3525 | scsi_cmd->opcode = SPACE; |
| 3526 | scsi_cmd->code = code; |
| 3527 | scsi_ulto3b(count, scsi_cmd->count); |
| 3528 | scsi_cmd->control = 0; |
| 3529 | |
| 3530 | cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL, |
| 3531 | 0, sense_len, sizeof(*scsi_cmd), timeout); |
| 3532 | } |
| 3533 | |
| 3534 | void |
| 3535 | scsi_write_filemarks(struct ccb_scsiio *csio, u_int32_t retries, |
| 3536 | void (*cbfcnp)(struct cam_periph *, union ccb *), |
| 3537 | u_int8_t tag_action, int immediate, int setmark, |
| 3538 | u_int32_t num_marks, u_int8_t sense_len, |
| 3539 | u_int32_t timeout) |
| 3540 | { |
| 3541 | struct scsi_write_filemarks *scsi_cmd; |
| 3542 | |
| 3543 | scsi_cmd = (struct scsi_write_filemarks *)&csio->cdb_io.cdb_bytes; |
| 3544 | bzero(scsi_cmd, sizeof(*scsi_cmd)); |
| 3545 | scsi_cmd->opcode = WRITE_FILEMARKS; |
| 3546 | if (immediate) |
| 3547 | scsi_cmd->byte2 |= SWFMRK_IMMED; |
| 3548 | if (setmark) |
| 3549 | scsi_cmd->byte2 |= SWFMRK_WSMK; |
| 3550 | |
| 3551 | scsi_ulto3b(num_marks, scsi_cmd->num_marks); |
| 3552 | |
| 3553 | cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL, |
| 3554 | 0, sense_len, sizeof(*scsi_cmd), timeout); |
| 3555 | } |
| 3556 | |
| 3557 | /* |
| 3558 | * The reserve and release unit commands differ only by their opcodes. |
| 3559 | */ |
| 3560 | void |
| 3561 | scsi_reserve_release_unit(struct ccb_scsiio *csio, u_int32_t retries, |
| 3562 | void (*cbfcnp)(struct cam_periph *, union ccb *), |
| 3563 | u_int8_t tag_action, int third_party, |
| 3564 | int third_party_id, u_int8_t sense_len, |
| 3565 | u_int32_t timeout, int reserve) |
| 3566 | { |
| 3567 | struct scsi_reserve_release_unit *scsi_cmd; |
| 3568 | |
| 3569 | scsi_cmd = (struct scsi_reserve_release_unit *)&csio->cdb_io.cdb_bytes; |
| 3570 | bzero(scsi_cmd, sizeof(*scsi_cmd)); |
| 3571 | |
| 3572 | if (reserve) |
| 3573 | scsi_cmd->opcode = RESERVE_UNIT; |
| 3574 | else |
| 3575 | scsi_cmd->opcode = RELEASE_UNIT; |
| 3576 | |
| 3577 | if (third_party) { |
| 3578 | scsi_cmd->lun_thirdparty |= SRRU_3RD_PARTY; |
| 3579 | scsi_cmd->lun_thirdparty |= |
| 3580 | ((third_party_id << SRRU_3RD_SHAMT) & SRRU_3RD_MASK); |
| 3581 | } |
| 3582 | |
| 3583 | cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL, |
| 3584 | 0, sense_len, sizeof(*scsi_cmd), timeout); |
| 3585 | } |
| 3586 | |
| 3587 | void |
| 3588 | scsi_erase(struct ccb_scsiio *csio, u_int32_t retries, |
| 3589 | void (*cbfcnp)(struct cam_periph *, union ccb *), |
| 3590 | u_int8_t tag_action, int immediate, int long_erase, |
| 3591 | u_int8_t sense_len, u_int32_t timeout) |
| 3592 | { |
| 3593 | struct scsi_erase *scsi_cmd; |
| 3594 | |
| 3595 | scsi_cmd = (struct scsi_erase *)&csio->cdb_io.cdb_bytes; |
| 3596 | bzero(scsi_cmd, sizeof(*scsi_cmd)); |
| 3597 | |
| 3598 | scsi_cmd->opcode = ERASE; |
| 3599 | |
| 3600 | if (immediate) |
| 3601 | scsi_cmd->lun_imm_long |= SE_IMMED; |
| 3602 | |
| 3603 | if (long_erase) |
| 3604 | scsi_cmd->lun_imm_long |= SE_LONG; |
| 3605 | |
| 3606 | cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL, |
| 3607 | 0, sense_len, sizeof(*scsi_cmd), timeout); |
| 3608 | } |
| 3609 | |
| 3610 | /* |
| 3611 | * Read Tape Position command. |
| 3612 | */ |
| 3613 | void |
| 3614 | scsi_read_position(struct ccb_scsiio *csio, u_int32_t retries, |
| 3615 | void (*cbfcnp)(struct cam_periph *, union ccb *), |
| 3616 | u_int8_t tag_action, int hardsoft, |
| 3617 | struct scsi_tape_position_data *sbp, |
| 3618 | u_int8_t sense_len, u_int32_t timeout) |
| 3619 | { |
| 3620 | struct scsi_tape_read_position *scmd; |
| 3621 | |
| 3622 | cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_IN, tag_action, |
| 3623 | (u_int8_t *)sbp, sizeof (*sbp), sense_len, sizeof(*scmd), timeout); |
| 3624 | scmd = (struct scsi_tape_read_position *)&csio->cdb_io.cdb_bytes; |
| 3625 | bzero(scmd, sizeof(*scmd)); |
| 3626 | scmd->opcode = READ_POSITION; |
| 3627 | scmd->byte1 = hardsoft; |
| 3628 | } |
| 3629 | |
| 3630 | /* |
| 3631 | * Set Tape Position command. |
| 3632 | */ |
| 3633 | void |
| 3634 | scsi_set_position(struct ccb_scsiio *csio, u_int32_t retries, |
| 3635 | void (*cbfcnp)(struct cam_periph *, union ccb *), |
| 3636 | u_int8_t tag_action, int hardsoft, u_int32_t blkno, |
| 3637 | u_int8_t sense_len, u_int32_t timeout) |
| 3638 | { |
| 3639 | struct scsi_tape_locate *scmd; |
| 3640 | |
| 3641 | cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, |
| 3642 | NULL, 0, sense_len, sizeof(*scmd), timeout); |
| 3643 | scmd = (struct scsi_tape_locate *)&csio->cdb_io.cdb_bytes; |
| 3644 | bzero(scmd, sizeof(*scmd)); |
| 3645 | scmd->opcode = LOCATE; |
| 3646 | if (hardsoft) |
| 3647 | scmd->byte1 |= SA_SPOS_BT; |
| 3648 | scsi_ulto4b(blkno, scmd->blkaddr); |
| 3649 | } |