1 /*- 2 * Copyright (c) 2009 Alexander Motin <mav@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer, 10 * without modification, immediately at the beginning of the file. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 #include "opt_ada.h" 31 32 #include <sys/param.h> 33 34 #ifdef _KERNEL 35 #include <sys/systm.h> 36 #include <sys/kernel.h> 37 #include <sys/bio.h> 38 #include <sys/sysctl.h> 39 #include <sys/taskqueue.h> 40 #include <sys/lock.h> 41 #include <sys/mutex.h> 42 #include <sys/conf.h> 43 #include <sys/devicestat.h> 44 #include <sys/eventhandler.h> 45 #include <sys/malloc.h> 46 #include <sys/cons.h> 47 #include <sys/proc.h> 48 #include <sys/reboot.h> 49 #include <geom/geom_disk.h> 50 #endif /* _KERNEL */ 51 52 #ifndef _KERNEL 53 #include <stdio.h> 54 #include <string.h> 55 #endif /* _KERNEL */ 56 57 #include <cam/cam.h> 58 #include <cam/cam_ccb.h> 59 #include <cam/cam_periph.h> 60 #include <cam/cam_xpt_periph.h> 61 #include <cam/cam_sim.h> 62 63 #include <cam/ata/ata_all.h> 64 65 #include <machine/md_var.h> /* geometry translation */ 66 67 #ifdef _KERNEL 68 69 #define ATA_MAX_28BIT_LBA 268435455UL 70 71 typedef enum { 72 ADA_STATE_RAHEAD, 73 ADA_STATE_WCACHE, 74 ADA_STATE_NORMAL 75 } ada_state; 76 77 typedef enum { 78 ADA_FLAG_CAN_48BIT = 0x0002, 79 ADA_FLAG_CAN_FLUSHCACHE = 0x0004, 80 ADA_FLAG_CAN_NCQ = 0x0008, 81 ADA_FLAG_CAN_DMA = 0x0010, 82 ADA_FLAG_NEED_OTAG = 0x0020, 83 ADA_FLAG_WAS_OTAG = 0x0040, 84 ADA_FLAG_CAN_TRIM = 0x0080, 85 ADA_FLAG_OPEN = 0x0100, 86 ADA_FLAG_SCTX_INIT = 0x0200, 87 ADA_FLAG_CAN_CFA = 0x0400, 88 ADA_FLAG_CAN_POWERMGT = 0x0800, 89 ADA_FLAG_CAN_DMA48 = 0x1000, 90 ADA_FLAG_DIRTY = 0x2000 91 } ada_flags; 92 93 typedef enum { 94 ADA_Q_NONE = 0x00, 95 ADA_Q_4K = 0x01, 96 } ada_quirks; 97 98 #define ADA_Q_BIT_STRING \ 99 "\020" \ 100 "\0014K" 101 102 typedef enum { 103 ADA_CCB_RAHEAD = 0x01, 104 ADA_CCB_WCACHE = 0x02, 105 ADA_CCB_BUFFER_IO = 0x03, 106 ADA_CCB_DUMP = 0x05, 107 ADA_CCB_TRIM = 0x06, 108 ADA_CCB_TYPE_MASK = 0x0F, 109 } ada_ccb_state; 110 111 /* Offsets into our private area for storing information */ 112 #define ccb_state ppriv_field0 113 #define ccb_bp ppriv_ptr1 114 115 struct disk_params { 116 u_int8_t heads; 117 u_int8_t secs_per_track; 118 u_int32_t cylinders; 119 u_int32_t secsize; /* Number of bytes/logical sector */ 120 u_int64_t sectors; /* Total number sectors */ 121 }; 122 123 #define TRIM_MAX_BLOCKS 8 124 #define TRIM_MAX_RANGES (TRIM_MAX_BLOCKS * ATA_DSM_BLK_RANGES) 125 struct trim_request { 126 uint8_t data[TRIM_MAX_RANGES * ATA_DSM_RANGE_SIZE]; 127 TAILQ_HEAD(, bio) bps; 128 }; 129 130 struct ada_softc { 131 struct bio_queue_head bio_queue; 132 struct bio_queue_head trim_queue; 133 int outstanding_cmds; /* Number of active commands */ 134 int refcount; /* Active xpt_action() calls */ 135 ada_state state; 136 ada_flags flags; 137 ada_quirks quirks; 138 int sort_io_queue; 139 int trim_max_ranges; 140 int trim_running; 141 int read_ahead; 142 int write_cache; 143 #ifdef ADA_TEST_FAILURE 144 int force_read_error; 145 int force_write_error; 146 int periodic_read_error; 147 int periodic_read_count; 148 #endif 149 struct disk_params params; 150 struct disk *disk; 151 struct task sysctl_task; 152 struct sysctl_ctx_list sysctl_ctx; 153 struct sysctl_oid *sysctl_tree; 154 struct callout sendordered_c; 155 struct trim_request trim_req; 156 }; 157 158 struct ada_quirk_entry { 159 struct scsi_inquiry_pattern inq_pat; 160 ada_quirks quirks; 161 }; 162 163 static struct ada_quirk_entry ada_quirk_table[] = 164 { 165 { 166 /* Hitachi Advanced Format (4k) drives */ 167 { T_DIRECT, SIP_MEDIA_FIXED, "*", "Hitachi H??????????E3*", "*" }, 168 /*quirks*/ADA_Q_4K 169 }, 170 { 171 /* Samsung Advanced Format (4k) drives */ 172 { T_DIRECT, SIP_MEDIA_FIXED, "*", "SAMSUNG HD155UI*", "*" }, 173 /*quirks*/ADA_Q_4K 174 }, 175 { 176 /* Samsung Advanced Format (4k) drives */ 177 { T_DIRECT, SIP_MEDIA_FIXED, "*", "SAMSUNG HD204UI*", "*" }, 178 /*quirks*/ADA_Q_4K 179 }, 180 { 181 /* Seagate Barracuda Green Advanced Format (4k) drives */ 182 { T_DIRECT, SIP_MEDIA_FIXED, "*", "ST????DL*", "*" }, 183 /*quirks*/ADA_Q_4K 184 }, 185 { 186 /* Seagate Barracuda Advanced Format (4k) drives */ 187 { T_DIRECT, SIP_MEDIA_FIXED, "*", "ST???DM*", "*" }, 188 /*quirks*/ADA_Q_4K 189 }, 190 { 191 /* Seagate Barracuda Advanced Format (4k) drives */ 192 { T_DIRECT, SIP_MEDIA_FIXED, "*", "ST????DM*", "*" }, 193 /*quirks*/ADA_Q_4K 194 }, 195 { 196 /* Seagate Momentus Advanced Format (4k) drives */ 197 { T_DIRECT, SIP_MEDIA_FIXED, "*", "ST9500423AS*", "*" }, 198 /*quirks*/ADA_Q_4K 199 }, 200 { 201 /* Seagate Momentus Advanced Format (4k) drives */ 202 { T_DIRECT, SIP_MEDIA_FIXED, "*", "ST9500424AS*", "*" }, 203 /*quirks*/ADA_Q_4K 204 }, 205 { 206 /* Seagate Momentus Advanced Format (4k) drives */ 207 { T_DIRECT, SIP_MEDIA_FIXED, "*", "ST9640423AS*", "*" }, 208 /*quirks*/ADA_Q_4K 209 }, 210 { 211 /* Seagate Momentus Advanced Format (4k) drives */ 212 { T_DIRECT, SIP_MEDIA_FIXED, "*", "ST9640424AS*", "*" }, 213 /*quirks*/ADA_Q_4K 214 }, 215 { 216 /* Seagate Momentus Advanced Format (4k) drives */ 217 { T_DIRECT, SIP_MEDIA_FIXED, "*", "ST9750420AS*", "*" }, 218 /*quirks*/ADA_Q_4K 219 }, 220 { 221 /* Seagate Momentus Advanced Format (4k) drives */ 222 { T_DIRECT, SIP_MEDIA_FIXED, "*", "ST9750422AS*", "*" }, 223 /*quirks*/ADA_Q_4K 224 }, 225 { 226 /* Seagate Momentus Advanced Format (4k) drives */ 227 { T_DIRECT, SIP_MEDIA_FIXED, "*", "ST9750423AS*", "*" }, 228 /*quirks*/ADA_Q_4K 229 }, 230 { 231 /* Seagate Momentus Thin Advanced Format (4k) drives */ 232 { T_DIRECT, SIP_MEDIA_FIXED, "*", "ST???LT*", "*" }, 233 /*quirks*/ADA_Q_4K 234 }, 235 { 236 /* WDC Caviar Red Advanced Format (4k) drives */ 237 { T_DIRECT, SIP_MEDIA_FIXED, "*", "WDC WD????CX*", "*" }, 238 /*quirks*/ADA_Q_4K 239 }, 240 { 241 /* WDC Caviar Green Advanced Format (4k) drives */ 242 { T_DIRECT, SIP_MEDIA_FIXED, "*", "WDC WD????RS*", "*" }, 243 /*quirks*/ADA_Q_4K 244 }, 245 { 246 /* WDC Caviar Green/Red Advanced Format (4k) drives */ 247 { T_DIRECT, SIP_MEDIA_FIXED, "*", "WDC WD????RX*", "*" }, 248 /*quirks*/ADA_Q_4K 249 }, 250 { 251 /* WDC Caviar Red Advanced Format (4k) drives */ 252 { T_DIRECT, SIP_MEDIA_FIXED, "*", "WDC WD??????CX*", "*" }, 253 /*quirks*/ADA_Q_4K 254 }, 255 { 256 /* WDC Caviar Black Advanced Format (4k) drives */ 257 { T_DIRECT, SIP_MEDIA_FIXED, "*", "WDC WD??????EX*", "*" }, 258 /*quirks*/ADA_Q_4K 259 }, 260 { 261 /* WDC Caviar Green Advanced Format (4k) drives */ 262 { T_DIRECT, SIP_MEDIA_FIXED, "*", "WDC WD??????RS*", "*" }, 263 /*quirks*/ADA_Q_4K 264 }, 265 { 266 /* WDC Caviar Green Advanced Format (4k) drives */ 267 { T_DIRECT, SIP_MEDIA_FIXED, "*", "WDC WD??????RX*", "*" }, 268 /*quirks*/ADA_Q_4K 269 }, 270 { 271 /* WDC Scorpio Black Advanced Format (4k) drives */ 272 { T_DIRECT, SIP_MEDIA_FIXED, "*", "WDC WD???PKT*", "*" }, 273 /*quirks*/ADA_Q_4K 274 }, 275 { 276 /* WDC Scorpio Black Advanced Format (4k) drives */ 277 { T_DIRECT, SIP_MEDIA_FIXED, "*", "WDC WD?????PKT*", "*" }, 278 /*quirks*/ADA_Q_4K 279 }, 280 { 281 /* WDC Scorpio Blue Advanced Format (4k) drives */ 282 { T_DIRECT, SIP_MEDIA_FIXED, "*", "WDC WD???PVT*", "*" }, 283 /*quirks*/ADA_Q_4K 284 }, 285 { 286 /* WDC Scorpio Blue Advanced Format (4k) drives */ 287 { T_DIRECT, SIP_MEDIA_FIXED, "*", "WDC WD?????PVT*", "*" }, 288 /*quirks*/ADA_Q_4K 289 }, 290 /* SSDs */ 291 { 292 /* 293 * Corsair Force 2 SSDs 294 * 4k optimised & trim only works in 4k requests + 4k aligned 295 */ 296 { T_DIRECT, SIP_MEDIA_FIXED, "*", "Corsair CSSD-F*", "*" }, 297 /*quirks*/ADA_Q_4K 298 }, 299 { 300 /* 301 * Corsair Force 3 SSDs 302 * 4k optimised & trim only works in 4k requests + 4k aligned 303 */ 304 { T_DIRECT, SIP_MEDIA_FIXED, "*", "Corsair Force 3*", "*" }, 305 /*quirks*/ADA_Q_4K 306 }, 307 { 308 /* 309 * Corsair Neutron GTX SSDs 310 * 4k optimised & trim only works in 4k requests + 4k aligned 311 */ 312 { T_DIRECT, SIP_MEDIA_FIXED, "*", "Corsair Neutron GTX*", "*" }, 313 /*quirks*/ADA_Q_4K 314 }, 315 { 316 /* 317 * Corsair Force GT & GS SSDs 318 * 4k optimised & trim only works in 4k requests + 4k aligned 319 */ 320 { T_DIRECT, SIP_MEDIA_FIXED, "*", "Corsair Force G*", "*" }, 321 /*quirks*/ADA_Q_4K 322 }, 323 { 324 /* 325 * Crucial M4 SSDs 326 * 4k optimised & trim only works in 4k requests + 4k aligned 327 */ 328 { T_DIRECT, SIP_MEDIA_FIXED, "*", "M4-CT???M4SSD2*", "*" }, 329 /*quirks*/ADA_Q_4K 330 }, 331 { 332 /* 333 * Crucial RealSSD C300 SSDs 334 * 4k optimised 335 */ 336 { T_DIRECT, SIP_MEDIA_FIXED, "*", "C300-CTFDDAC???MAG*", 337 "*" }, /*quirks*/ADA_Q_4K 338 }, 339 { 340 /* 341 * Intel 320 Series SSDs 342 * 4k optimised & trim only works in 4k requests + 4k aligned 343 */ 344 { T_DIRECT, SIP_MEDIA_FIXED, "*", "INTEL SSDSA2CW*", "*" }, 345 /*quirks*/ADA_Q_4K 346 }, 347 { 348 /* 349 * Intel 330 Series SSDs 350 * 4k optimised & trim only works in 4k requests + 4k aligned 351 */ 352 { T_DIRECT, SIP_MEDIA_FIXED, "*", "INTEL SSDSC2CT*", "*" }, 353 /*quirks*/ADA_Q_4K 354 }, 355 { 356 /* 357 * Intel 510 Series SSDs 358 * 4k optimised & trim only works in 4k requests + 4k aligned 359 */ 360 { T_DIRECT, SIP_MEDIA_FIXED, "*", "INTEL SSDSC2MH*", "*" }, 361 /*quirks*/ADA_Q_4K 362 }, 363 { 364 /* 365 * Intel 520 Series SSDs 366 * 4k optimised & trim only works in 4k requests + 4k aligned 367 */ 368 { T_DIRECT, SIP_MEDIA_FIXED, "*", "INTEL SSDSC2BW*", "*" }, 369 /*quirks*/ADA_Q_4K 370 }, 371 { 372 /* 373 * Intel X25-M Series SSDs 374 * 4k optimised & trim only works in 4k requests + 4k aligned 375 */ 376 { T_DIRECT, SIP_MEDIA_FIXED, "*", "INTEL SSDSA2M*", "*" }, 377 /*quirks*/ADA_Q_4K 378 }, 379 { 380 /* 381 * Kingston E100 Series SSDs 382 * 4k optimised & trim only works in 4k requests + 4k aligned 383 */ 384 { T_DIRECT, SIP_MEDIA_FIXED, "*", "KINGSTON SE100S3*", "*" }, 385 /*quirks*/ADA_Q_4K 386 }, 387 { 388 /* 389 * Kingston HyperX 3k SSDs 390 * 4k optimised & trim only works in 4k requests + 4k aligned 391 */ 392 { T_DIRECT, SIP_MEDIA_FIXED, "*", "KINGSTON SH103S3*", "*" }, 393 /*quirks*/ADA_Q_4K 394 }, 395 { 396 /* 397 * Marvell SSDs (entry taken from OpenSolaris) 398 * 4k optimised & trim only works in 4k requests + 4k aligned 399 */ 400 { T_DIRECT, SIP_MEDIA_FIXED, "*", "MARVELL SD88SA02*", "*" }, 401 /*quirks*/ADA_Q_4K 402 }, 403 { 404 /* 405 * OCZ Agility 2 SSDs 406 * 4k optimised & trim only works in 4k requests + 4k aligned 407 */ 408 { T_DIRECT, SIP_MEDIA_FIXED, "*", "OCZ-AGILITY2*", "*" }, 409 /*quirks*/ADA_Q_4K 410 }, 411 { 412 /* 413 * OCZ Agility 3 SSDs 414 * 4k optimised & trim only works in 4k requests + 4k aligned 415 */ 416 { T_DIRECT, SIP_MEDIA_FIXED, "*", "OCZ-AGILITY3*", "*" }, 417 /*quirks*/ADA_Q_4K 418 }, 419 { 420 /* 421 * OCZ Deneva R Series SSDs 422 * 4k optimised & trim only works in 4k requests + 4k aligned 423 */ 424 { T_DIRECT, SIP_MEDIA_FIXED, "*", "DENRSTE251M45*", "*" }, 425 /*quirks*/ADA_Q_4K 426 }, 427 { 428 /* 429 * OCZ Vertex 2 SSDs (inc pro series) 430 * 4k optimised & trim only works in 4k requests + 4k aligned 431 */ 432 { T_DIRECT, SIP_MEDIA_FIXED, "*", "OCZ?VERTEX2*", "*" }, 433 /*quirks*/ADA_Q_4K 434 }, 435 { 436 /* 437 * OCZ Vertex 3 SSDs 438 * 4k optimised & trim only works in 4k requests + 4k aligned 439 */ 440 { T_DIRECT, SIP_MEDIA_FIXED, "*", "OCZ-VERTEX3*", "*" }, 441 /*quirks*/ADA_Q_4K 442 }, 443 { 444 /* 445 * OCZ Vertex 4 SSDs 446 * 4k optimised & trim only works in 4k requests + 4k aligned 447 */ 448 { T_DIRECT, SIP_MEDIA_FIXED, "*", "OCZ-VERTEX4*", "*" }, 449 /*quirks*/ADA_Q_4K 450 }, 451 { 452 /* 453 * Samsung 830 Series SSDs 454 * 4k optimised 455 */ 456 { T_DIRECT, SIP_MEDIA_FIXED, "*", "SAMSUNG SSD 830 Series*", "*" }, 457 /*quirks*/ADA_Q_4K 458 }, 459 { 460 /* 461 * Samsung 840 SSDs 462 * 4k optimised 463 */ 464 { T_DIRECT, SIP_MEDIA_FIXED, "*", "Samsung SSD 840*", "*" }, 465 /*quirks*/ADA_Q_4K 466 }, 467 { 468 /* 469 * Samsung 843T Series SSDs 470 * 4k optimised 471 */ 472 { T_DIRECT, SIP_MEDIA_FIXED, "*", "SAMSUNG MZ7WD*", "*" }, 473 /*quirks*/ADA_Q_4K 474 }, 475 { 476 /* 477 * Samsung 850 SSDs 478 * 4k optimised 479 */ 480 { T_DIRECT, SIP_MEDIA_FIXED, "*", "Samsung SSD 850*", "*" }, 481 /*quirks*/ADA_Q_4K 482 }, 483 { 484 /* 485 * Samsung PM853T Series SSDs 486 * 4k optimised 487 */ 488 { T_DIRECT, SIP_MEDIA_FIXED, "*", "SAMSUNG MZ7GE*", "*" }, 489 /*quirks*/ADA_Q_4K 490 }, 491 { 492 /* 493 * SuperTalent TeraDrive CT SSDs 494 * 4k optimised & trim only works in 4k requests + 4k aligned 495 */ 496 { T_DIRECT, SIP_MEDIA_FIXED, "*", "FTM??CT25H*", "*" }, 497 /*quirks*/ADA_Q_4K 498 }, 499 { 500 /* 501 * XceedIOPS SATA SSDs 502 * 4k optimised 503 */ 504 { T_DIRECT, SIP_MEDIA_FIXED, "*", "SG9XCS2D*", "*" }, 505 /*quirks*/ADA_Q_4K 506 }, 507 { 508 /* Default */ 509 { 510 T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, 511 /*vendor*/"*", /*product*/"*", /*revision*/"*" 512 }, 513 /*quirks*/0 514 }, 515 }; 516 517 static disk_strategy_t adastrategy; 518 static dumper_t adadump; 519 static periph_init_t adainit; 520 static void adaasync(void *callback_arg, u_int32_t code, 521 struct cam_path *path, void *arg); 522 static void adasysctlinit(void *context, int pending); 523 static periph_ctor_t adaregister; 524 static periph_dtor_t adacleanup; 525 static periph_start_t adastart; 526 static periph_oninv_t adaoninvalidate; 527 static void adadone(struct cam_periph *periph, 528 union ccb *done_ccb); 529 static int adaerror(union ccb *ccb, u_int32_t cam_flags, 530 u_int32_t sense_flags); 531 static void adagetparams(struct cam_periph *periph, 532 struct ccb_getdev *cgd); 533 static timeout_t adasendorderedtag; 534 static void adashutdown(void *arg, int howto); 535 static void adasuspend(void *arg); 536 static void adaresume(void *arg); 537 538 #ifndef ADA_DEFAULT_LEGACY_ALIASES 539 #define ADA_DEFAULT_LEGACY_ALIASES 1 540 #endif 541 542 #ifndef ADA_DEFAULT_TIMEOUT 543 #define ADA_DEFAULT_TIMEOUT 30 /* Timeout in seconds */ 544 #endif 545 546 #ifndef ADA_DEFAULT_RETRY 547 #define ADA_DEFAULT_RETRY 4 548 #endif 549 550 #ifndef ADA_DEFAULT_SEND_ORDERED 551 #define ADA_DEFAULT_SEND_ORDERED 1 552 #endif 553 554 #ifndef ADA_DEFAULT_SPINDOWN_SHUTDOWN 555 #define ADA_DEFAULT_SPINDOWN_SHUTDOWN 1 556 #endif 557 558 #ifndef ADA_DEFAULT_SPINDOWN_SUSPEND 559 #define ADA_DEFAULT_SPINDOWN_SUSPEND 1 560 #endif 561 562 #ifndef ADA_DEFAULT_READ_AHEAD 563 #define ADA_DEFAULT_READ_AHEAD 1 564 #endif 565 566 #ifndef ADA_DEFAULT_WRITE_CACHE 567 #define ADA_DEFAULT_WRITE_CACHE 1 568 #endif 569 570 #define ADA_RA (softc->read_ahead >= 0 ? \ 571 softc->read_ahead : ada_read_ahead) 572 #define ADA_WC (softc->write_cache >= 0 ? \ 573 softc->write_cache : ada_write_cache) 574 #define ADA_SIO (softc->sort_io_queue >= 0 ? \ 575 softc->sort_io_queue : cam_sort_io_queues) 576 577 /* 578 * Most platforms map firmware geometry to actual, but some don't. If 579 * not overridden, default to nothing. 580 */ 581 #ifndef ata_disk_firmware_geom_adjust 582 #define ata_disk_firmware_geom_adjust(disk) 583 #endif 584 585 static int ada_legacy_aliases = ADA_DEFAULT_LEGACY_ALIASES; 586 static int ada_retry_count = ADA_DEFAULT_RETRY; 587 static int ada_default_timeout = ADA_DEFAULT_TIMEOUT; 588 static int ada_send_ordered = ADA_DEFAULT_SEND_ORDERED; 589 static int ada_spindown_shutdown = ADA_DEFAULT_SPINDOWN_SHUTDOWN; 590 static int ada_spindown_suspend = ADA_DEFAULT_SPINDOWN_SUSPEND; 591 static int ada_read_ahead = ADA_DEFAULT_READ_AHEAD; 592 static int ada_write_cache = ADA_DEFAULT_WRITE_CACHE; 593 594 static SYSCTL_NODE(_kern_cam, OID_AUTO, ada, CTLFLAG_RD, 0, 595 "CAM Direct Access Disk driver"); 596 SYSCTL_INT(_kern_cam_ada, OID_AUTO, legacy_aliases, CTLFLAG_RWTUN, 597 &ada_legacy_aliases, 0, "Create legacy-like device aliases"); 598 SYSCTL_INT(_kern_cam_ada, OID_AUTO, retry_count, CTLFLAG_RWTUN, 599 &ada_retry_count, 0, "Normal I/O retry count"); 600 SYSCTL_INT(_kern_cam_ada, OID_AUTO, default_timeout, CTLFLAG_RWTUN, 601 &ada_default_timeout, 0, "Normal I/O timeout (in seconds)"); 602 SYSCTL_INT(_kern_cam_ada, OID_AUTO, send_ordered, CTLFLAG_RWTUN, 603 &ada_send_ordered, 0, "Send Ordered Tags"); 604 SYSCTL_INT(_kern_cam_ada, OID_AUTO, spindown_shutdown, CTLFLAG_RWTUN, 605 &ada_spindown_shutdown, 0, "Spin down upon shutdown"); 606 SYSCTL_INT(_kern_cam_ada, OID_AUTO, spindown_suspend, CTLFLAG_RWTUN, 607 &ada_spindown_suspend, 0, "Spin down upon suspend"); 608 SYSCTL_INT(_kern_cam_ada, OID_AUTO, read_ahead, CTLFLAG_RWTUN, 609 &ada_read_ahead, 0, "Enable disk read-ahead"); 610 SYSCTL_INT(_kern_cam_ada, OID_AUTO, write_cache, CTLFLAG_RWTUN, 611 &ada_write_cache, 0, "Enable disk write cache"); 612 613 /* 614 * ADA_ORDEREDTAG_INTERVAL determines how often, relative 615 * to the default timeout, we check to see whether an ordered 616 * tagged transaction is appropriate to prevent simple tag 617 * starvation. Since we'd like to ensure that there is at least 618 * 1/2 of the timeout length left for a starved transaction to 619 * complete after we've sent an ordered tag, we must poll at least 620 * four times in every timeout period. This takes care of the worst 621 * case where a starved transaction starts during an interval that 622 * meets the requirement "don't send an ordered tag" test so it takes 623 * us two intervals to determine that a tag must be sent. 624 */ 625 #ifndef ADA_ORDEREDTAG_INTERVAL 626 #define ADA_ORDEREDTAG_INTERVAL 4 627 #endif 628 629 static struct periph_driver adadriver = 630 { 631 adainit, "ada", 632 TAILQ_HEAD_INITIALIZER(adadriver.units), /* generation */ 0 633 }; 634 635 PERIPHDRIVER_DECLARE(ada, adadriver); 636 637 static MALLOC_DEFINE(M_ATADA, "ata_da", "ata_da buffers"); 638 639 static int 640 adaopen(struct disk *dp) 641 { 642 struct cam_periph *periph; 643 struct ada_softc *softc; 644 int error; 645 646 periph = (struct cam_periph *)dp->d_drv1; 647 if (cam_periph_acquire(periph) != CAM_REQ_CMP) { 648 return(ENXIO); 649 } 650 651 cam_periph_lock(periph); 652 if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) { 653 cam_periph_unlock(periph); 654 cam_periph_release(periph); 655 return (error); 656 } 657 658 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH, 659 ("adaopen\n")); 660 661 softc = (struct ada_softc *)periph->softc; 662 softc->flags |= ADA_FLAG_OPEN; 663 664 cam_periph_unhold(periph); 665 cam_periph_unlock(periph); 666 return (0); 667 } 668 669 static int 670 adaclose(struct disk *dp) 671 { 672 struct cam_periph *periph; 673 struct ada_softc *softc; 674 union ccb *ccb; 675 int error; 676 677 periph = (struct cam_periph *)dp->d_drv1; 678 softc = (struct ada_softc *)periph->softc; 679 cam_periph_lock(periph); 680 681 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH, 682 ("adaclose\n")); 683 684 /* We only sync the cache if the drive is capable of it. */ 685 if ((softc->flags & ADA_FLAG_DIRTY) != 0 && 686 (softc->flags & ADA_FLAG_CAN_FLUSHCACHE) != 0 && 687 (periph->flags & CAM_PERIPH_INVALID) == 0 && 688 cam_periph_hold(periph, PRIBIO) == 0) { 689 690 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL); 691 cam_fill_ataio(&ccb->ataio, 692 1, 693 adadone, 694 CAM_DIR_NONE, 695 0, 696 NULL, 697 0, 698 ada_default_timeout*1000); 699 700 if (softc->flags & ADA_FLAG_CAN_48BIT) 701 ata_48bit_cmd(&ccb->ataio, ATA_FLUSHCACHE48, 0, 0, 0); 702 else 703 ata_28bit_cmd(&ccb->ataio, ATA_FLUSHCACHE, 0, 0, 0); 704 error = cam_periph_runccb(ccb, adaerror, /*cam_flags*/0, 705 /*sense_flags*/0, softc->disk->d_devstat); 706 707 if (error != 0) 708 xpt_print(periph->path, "Synchronize cache failed\n"); 709 else 710 softc->flags &= ~ADA_FLAG_DIRTY; 711 xpt_release_ccb(ccb); 712 cam_periph_unhold(periph); 713 } 714 715 softc->flags &= ~ADA_FLAG_OPEN; 716 717 while (softc->refcount != 0) 718 cam_periph_sleep(periph, &softc->refcount, PRIBIO, "adaclose", 1); 719 cam_periph_unlock(periph); 720 cam_periph_release(periph); 721 return (0); 722 } 723 724 static void 725 adaschedule(struct cam_periph *periph) 726 { 727 struct ada_softc *softc = (struct ada_softc *)periph->softc; 728 729 if (softc->state != ADA_STATE_NORMAL) 730 return; 731 732 /* Check if we have more work to do. */ 733 if (bioq_first(&softc->bio_queue) || 734 (!softc->trim_running && bioq_first(&softc->trim_queue))) { 735 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 736 } 737 } 738 739 /* 740 * Actually translate the requested transfer into one the physical driver 741 * can understand. The transfer is described by a buf and will include 742 * only one physical transfer. 743 */ 744 static void 745 adastrategy(struct bio *bp) 746 { 747 struct cam_periph *periph; 748 struct ada_softc *softc; 749 750 periph = (struct cam_periph *)bp->bio_disk->d_drv1; 751 softc = (struct ada_softc *)periph->softc; 752 753 cam_periph_lock(periph); 754 755 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("adastrategy(%p)\n", bp)); 756 757 /* 758 * If the device has been made invalid, error out 759 */ 760 if ((periph->flags & CAM_PERIPH_INVALID) != 0) { 761 cam_periph_unlock(periph); 762 biofinish(bp, NULL, ENXIO); 763 return; 764 } 765 766 /* 767 * Place it in the queue of disk activities for this disk 768 */ 769 if (bp->bio_cmd == BIO_DELETE) { 770 KASSERT((softc->flags & ADA_FLAG_CAN_TRIM) || 771 ((softc->flags & ADA_FLAG_CAN_CFA) && 772 !(softc->flags & ADA_FLAG_CAN_48BIT)), 773 ("BIO_DELETE but no supported TRIM method.")); 774 bioq_disksort(&softc->trim_queue, bp); 775 } else { 776 if (ADA_SIO) 777 bioq_disksort(&softc->bio_queue, bp); 778 else 779 bioq_insert_tail(&softc->bio_queue, bp); 780 } 781 782 /* 783 * Schedule ourselves for performing the work. 784 */ 785 adaschedule(periph); 786 cam_periph_unlock(periph); 787 788 return; 789 } 790 791 static int 792 adadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length) 793 { 794 struct cam_periph *periph; 795 struct ada_softc *softc; 796 u_int secsize; 797 union ccb ccb; 798 struct disk *dp; 799 uint64_t lba; 800 uint16_t count; 801 int error = 0; 802 803 dp = arg; 804 periph = dp->d_drv1; 805 softc = (struct ada_softc *)periph->softc; 806 cam_periph_lock(periph); 807 secsize = softc->params.secsize; 808 lba = offset / secsize; 809 count = length / secsize; 810 811 if ((periph->flags & CAM_PERIPH_INVALID) != 0) { 812 cam_periph_unlock(periph); 813 return (ENXIO); 814 } 815 816 if (length > 0) { 817 xpt_setup_ccb(&ccb.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 818 ccb.ccb_h.ccb_state = ADA_CCB_DUMP; 819 cam_fill_ataio(&ccb.ataio, 820 0, 821 adadone, 822 CAM_DIR_OUT, 823 0, 824 (u_int8_t *) virtual, 825 length, 826 ada_default_timeout*1000); 827 if ((softc->flags & ADA_FLAG_CAN_48BIT) && 828 (lba + count >= ATA_MAX_28BIT_LBA || 829 count >= 256)) { 830 ata_48bit_cmd(&ccb.ataio, ATA_WRITE_DMA48, 831 0, lba, count); 832 } else { 833 ata_28bit_cmd(&ccb.ataio, ATA_WRITE_DMA, 834 0, lba, count); 835 } 836 xpt_polled_action(&ccb); 837 838 error = cam_periph_error(&ccb, 839 0, SF_NO_RECOVERY | SF_NO_RETRY, NULL); 840 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0) 841 cam_release_devq(ccb.ccb_h.path, /*relsim_flags*/0, 842 /*reduction*/0, /*timeout*/0, /*getcount_only*/0); 843 if (error != 0) 844 printf("Aborting dump due to I/O error.\n"); 845 846 cam_periph_unlock(periph); 847 return (error); 848 } 849 850 if (softc->flags & ADA_FLAG_CAN_FLUSHCACHE) { 851 xpt_setup_ccb(&ccb.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 852 853 ccb.ccb_h.ccb_state = ADA_CCB_DUMP; 854 cam_fill_ataio(&ccb.ataio, 855 0, 856 adadone, 857 CAM_DIR_NONE, 858 0, 859 NULL, 860 0, 861 ada_default_timeout*1000); 862 863 if (softc->flags & ADA_FLAG_CAN_48BIT) 864 ata_48bit_cmd(&ccb.ataio, ATA_FLUSHCACHE48, 0, 0, 0); 865 else 866 ata_28bit_cmd(&ccb.ataio, ATA_FLUSHCACHE, 0, 0, 0); 867 xpt_polled_action(&ccb); 868 869 error = cam_periph_error(&ccb, 870 0, SF_NO_RECOVERY | SF_NO_RETRY, NULL); 871 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0) 872 cam_release_devq(ccb.ccb_h.path, /*relsim_flags*/0, 873 /*reduction*/0, /*timeout*/0, /*getcount_only*/0); 874 if (error != 0) 875 xpt_print(periph->path, "Synchronize cache failed\n"); 876 } 877 cam_periph_unlock(periph); 878 return (error); 879 } 880 881 static void 882 adainit(void) 883 { 884 cam_status status; 885 886 /* 887 * Install a global async callback. This callback will 888 * receive async callbacks like "new device found". 889 */ 890 status = xpt_register_async(AC_FOUND_DEVICE, adaasync, NULL, NULL); 891 892 if (status != CAM_REQ_CMP) { 893 printf("ada: Failed to attach master async callback " 894 "due to status 0x%x!\n", status); 895 } else if (ada_send_ordered) { 896 897 /* Register our event handlers */ 898 if ((EVENTHANDLER_REGISTER(power_suspend, adasuspend, 899 NULL, EVENTHANDLER_PRI_LAST)) == NULL) 900 printf("adainit: power event registration failed!\n"); 901 if ((EVENTHANDLER_REGISTER(power_resume, adaresume, 902 NULL, EVENTHANDLER_PRI_LAST)) == NULL) 903 printf("adainit: power event registration failed!\n"); 904 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, adashutdown, 905 NULL, SHUTDOWN_PRI_DEFAULT)) == NULL) 906 printf("adainit: shutdown event registration failed!\n"); 907 } 908 } 909 910 /* 911 * Callback from GEOM, called when it has finished cleaning up its 912 * resources. 913 */ 914 static void 915 adadiskgonecb(struct disk *dp) 916 { 917 struct cam_periph *periph; 918 919 periph = (struct cam_periph *)dp->d_drv1; 920 921 cam_periph_release(periph); 922 } 923 924 static void 925 adaoninvalidate(struct cam_periph *periph) 926 { 927 struct ada_softc *softc; 928 929 softc = (struct ada_softc *)periph->softc; 930 931 /* 932 * De-register any async callbacks. 933 */ 934 xpt_register_async(0, adaasync, periph, periph->path); 935 936 /* 937 * Return all queued I/O with ENXIO. 938 * XXX Handle any transactions queued to the card 939 * with XPT_ABORT_CCB. 940 */ 941 bioq_flush(&softc->bio_queue, NULL, ENXIO); 942 bioq_flush(&softc->trim_queue, NULL, ENXIO); 943 944 disk_gone(softc->disk); 945 } 946 947 static void 948 adacleanup(struct cam_periph *periph) 949 { 950 struct ada_softc *softc; 951 952 softc = (struct ada_softc *)periph->softc; 953 954 cam_periph_unlock(periph); 955 956 /* 957 * If we can't free the sysctl tree, oh well... 958 */ 959 if ((softc->flags & ADA_FLAG_SCTX_INIT) != 0 960 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) { 961 xpt_print(periph->path, "can't remove sysctl context\n"); 962 } 963 964 disk_destroy(softc->disk); 965 callout_drain(&softc->sendordered_c); 966 free(softc, M_DEVBUF); 967 cam_periph_lock(periph); 968 } 969 970 static void 971 adaasync(void *callback_arg, u_int32_t code, 972 struct cam_path *path, void *arg) 973 { 974 struct ccb_getdev cgd; 975 struct cam_periph *periph; 976 struct ada_softc *softc; 977 978 periph = (struct cam_periph *)callback_arg; 979 switch (code) { 980 case AC_FOUND_DEVICE: 981 { 982 struct ccb_getdev *cgd; 983 cam_status status; 984 985 cgd = (struct ccb_getdev *)arg; 986 if (cgd == NULL) 987 break; 988 989 if (cgd->protocol != PROTO_ATA) 990 break; 991 992 /* 993 * Allocate a peripheral instance for 994 * this device and start the probe 995 * process. 996 */ 997 status = cam_periph_alloc(adaregister, adaoninvalidate, 998 adacleanup, adastart, 999 "ada", CAM_PERIPH_BIO, 1000 path, adaasync, 1001 AC_FOUND_DEVICE, cgd); 1002 1003 if (status != CAM_REQ_CMP 1004 && status != CAM_REQ_INPROG) 1005 printf("adaasync: Unable to attach to new device " 1006 "due to status 0x%x\n", status); 1007 break; 1008 } 1009 case AC_GETDEV_CHANGED: 1010 { 1011 softc = (struct ada_softc *)periph->softc; 1012 xpt_setup_ccb(&cgd.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 1013 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1014 xpt_action((union ccb *)&cgd); 1015 1016 if ((cgd.ident_data.capabilities1 & ATA_SUPPORT_DMA) && 1017 (cgd.inq_flags & SID_DMA)) 1018 softc->flags |= ADA_FLAG_CAN_DMA; 1019 else 1020 softc->flags &= ~ADA_FLAG_CAN_DMA; 1021 if (cgd.ident_data.support.command2 & ATA_SUPPORT_ADDRESS48) { 1022 softc->flags |= ADA_FLAG_CAN_48BIT; 1023 if (cgd.inq_flags & SID_DMA48) 1024 softc->flags |= ADA_FLAG_CAN_DMA48; 1025 else 1026 softc->flags &= ~ADA_FLAG_CAN_DMA48; 1027 } else 1028 softc->flags &= ~(ADA_FLAG_CAN_48BIT | 1029 ADA_FLAG_CAN_DMA48); 1030 if ((cgd.ident_data.satacapabilities & ATA_SUPPORT_NCQ) && 1031 (cgd.inq_flags & SID_DMA) && (cgd.inq_flags & SID_CmdQue)) 1032 softc->flags |= ADA_FLAG_CAN_NCQ; 1033 else 1034 softc->flags &= ~ADA_FLAG_CAN_NCQ; 1035 if ((cgd.ident_data.support_dsm & ATA_SUPPORT_DSM_TRIM) && 1036 (cgd.inq_flags & SID_DMA)) 1037 softc->flags |= ADA_FLAG_CAN_TRIM; 1038 else 1039 softc->flags &= ~ADA_FLAG_CAN_TRIM; 1040 1041 cam_periph_async(periph, code, path, arg); 1042 break; 1043 } 1044 case AC_ADVINFO_CHANGED: 1045 { 1046 uintptr_t buftype; 1047 1048 buftype = (uintptr_t)arg; 1049 if (buftype == CDAI_TYPE_PHYS_PATH) { 1050 struct ada_softc *softc; 1051 1052 softc = periph->softc; 1053 disk_attr_changed(softc->disk, "GEOM::physpath", 1054 M_NOWAIT); 1055 } 1056 break; 1057 } 1058 case AC_SENT_BDR: 1059 case AC_BUS_RESET: 1060 { 1061 softc = (struct ada_softc *)periph->softc; 1062 cam_periph_async(periph, code, path, arg); 1063 if (softc->state != ADA_STATE_NORMAL) 1064 break; 1065 xpt_setup_ccb(&cgd.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 1066 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1067 xpt_action((union ccb *)&cgd); 1068 if (ADA_RA >= 0 && 1069 cgd.ident_data.support.command1 & ATA_SUPPORT_LOOKAHEAD) 1070 softc->state = ADA_STATE_RAHEAD; 1071 else if (ADA_WC >= 0 && 1072 cgd.ident_data.support.command1 & ATA_SUPPORT_WRITECACHE) 1073 softc->state = ADA_STATE_WCACHE; 1074 else 1075 break; 1076 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 1077 softc->state = ADA_STATE_NORMAL; 1078 else 1079 xpt_schedule(periph, CAM_PRIORITY_DEV); 1080 } 1081 default: 1082 cam_periph_async(periph, code, path, arg); 1083 break; 1084 } 1085 } 1086 1087 static void 1088 adasysctlinit(void *context, int pending) 1089 { 1090 struct cam_periph *periph; 1091 struct ada_softc *softc; 1092 char tmpstr[80], tmpstr2[80]; 1093 1094 periph = (struct cam_periph *)context; 1095 1096 /* periph was held for us when this task was enqueued */ 1097 if ((periph->flags & CAM_PERIPH_INVALID) != 0) { 1098 cam_periph_release(periph); 1099 return; 1100 } 1101 1102 softc = (struct ada_softc *)periph->softc; 1103 snprintf(tmpstr, sizeof(tmpstr), "CAM ADA unit %d", periph->unit_number); 1104 snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number); 1105 1106 sysctl_ctx_init(&softc->sysctl_ctx); 1107 softc->flags |= ADA_FLAG_SCTX_INIT; 1108 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1109 SYSCTL_STATIC_CHILDREN(_kern_cam_ada), OID_AUTO, tmpstr2, 1110 CTLFLAG_RD, 0, tmpstr); 1111 if (softc->sysctl_tree == NULL) { 1112 printf("adasysctlinit: unable to allocate sysctl tree\n"); 1113 cam_periph_release(periph); 1114 return; 1115 } 1116 1117 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1118 OID_AUTO, "read_ahead", CTLFLAG_RW | CTLFLAG_MPSAFE, 1119 &softc->read_ahead, 0, "Enable disk read ahead."); 1120 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1121 OID_AUTO, "write_cache", CTLFLAG_RW | CTLFLAG_MPSAFE, 1122 &softc->write_cache, 0, "Enable disk write cache."); 1123 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1124 OID_AUTO, "sort_io_queue", CTLFLAG_RW | CTLFLAG_MPSAFE, 1125 &softc->sort_io_queue, 0, 1126 "Sort IO queue to try and optimise disk access patterns"); 1127 #ifdef ADA_TEST_FAILURE 1128 /* 1129 * Add a 'door bell' sysctl which allows one to set it from userland 1130 * and cause something bad to happen. For the moment, we only allow 1131 * whacking the next read or write. 1132 */ 1133 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1134 OID_AUTO, "force_read_error", CTLFLAG_RW | CTLFLAG_MPSAFE, 1135 &softc->force_read_error, 0, 1136 "Force a read error for the next N reads."); 1137 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1138 OID_AUTO, "force_write_error", CTLFLAG_RW | CTLFLAG_MPSAFE, 1139 &softc->force_write_error, 0, 1140 "Force a write error for the next N writes."); 1141 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1142 OID_AUTO, "periodic_read_error", CTLFLAG_RW | CTLFLAG_MPSAFE, 1143 &softc->periodic_read_error, 0, 1144 "Force a read error every N reads (don't set too low)."); 1145 #endif 1146 cam_periph_release(periph); 1147 } 1148 1149 static int 1150 adagetattr(struct bio *bp) 1151 { 1152 int ret; 1153 struct cam_periph *periph; 1154 1155 periph = (struct cam_periph *)bp->bio_disk->d_drv1; 1156 cam_periph_lock(periph); 1157 ret = xpt_getattr(bp->bio_data, bp->bio_length, bp->bio_attribute, 1158 periph->path); 1159 cam_periph_unlock(periph); 1160 if (ret == 0) 1161 bp->bio_completed = bp->bio_length; 1162 return ret; 1163 } 1164 1165 static cam_status 1166 adaregister(struct cam_periph *periph, void *arg) 1167 { 1168 struct ada_softc *softc; 1169 struct ccb_pathinq cpi; 1170 struct ccb_getdev *cgd; 1171 char announce_buf[80], buf1[32]; 1172 struct disk_params *dp; 1173 caddr_t match; 1174 u_int maxio; 1175 int legacy_id, quirks; 1176 1177 cgd = (struct ccb_getdev *)arg; 1178 if (cgd == NULL) { 1179 printf("adaregister: no getdev CCB, can't register device\n"); 1180 return(CAM_REQ_CMP_ERR); 1181 } 1182 1183 softc = (struct ada_softc *)malloc(sizeof(*softc), M_DEVBUF, 1184 M_NOWAIT|M_ZERO); 1185 1186 if (softc == NULL) { 1187 printf("adaregister: Unable to probe new device. " 1188 "Unable to allocate softc\n"); 1189 return(CAM_REQ_CMP_ERR); 1190 } 1191 1192 bioq_init(&softc->bio_queue); 1193 bioq_init(&softc->trim_queue); 1194 1195 if ((cgd->ident_data.capabilities1 & ATA_SUPPORT_DMA) && 1196 (cgd->inq_flags & SID_DMA)) 1197 softc->flags |= ADA_FLAG_CAN_DMA; 1198 if (cgd->ident_data.support.command2 & ATA_SUPPORT_ADDRESS48) { 1199 softc->flags |= ADA_FLAG_CAN_48BIT; 1200 if (cgd->inq_flags & SID_DMA48) 1201 softc->flags |= ADA_FLAG_CAN_DMA48; 1202 } 1203 if (cgd->ident_data.support.command2 & ATA_SUPPORT_FLUSHCACHE) 1204 softc->flags |= ADA_FLAG_CAN_FLUSHCACHE; 1205 if (cgd->ident_data.support.command1 & ATA_SUPPORT_POWERMGT) 1206 softc->flags |= ADA_FLAG_CAN_POWERMGT; 1207 if ((cgd->ident_data.satacapabilities & ATA_SUPPORT_NCQ) && 1208 (cgd->inq_flags & SID_DMA) && (cgd->inq_flags & SID_CmdQue)) 1209 softc->flags |= ADA_FLAG_CAN_NCQ; 1210 if ((cgd->ident_data.support_dsm & ATA_SUPPORT_DSM_TRIM) && 1211 (cgd->inq_flags & SID_DMA)) { 1212 softc->flags |= ADA_FLAG_CAN_TRIM; 1213 softc->trim_max_ranges = TRIM_MAX_RANGES; 1214 if (cgd->ident_data.max_dsm_blocks != 0) { 1215 softc->trim_max_ranges = 1216 min(cgd->ident_data.max_dsm_blocks * 1217 ATA_DSM_BLK_RANGES, softc->trim_max_ranges); 1218 } 1219 } 1220 if (cgd->ident_data.support.command2 & ATA_SUPPORT_CFA) 1221 softc->flags |= ADA_FLAG_CAN_CFA; 1222 1223 periph->softc = softc; 1224 1225 /* 1226 * See if this device has any quirks. 1227 */ 1228 match = cam_quirkmatch((caddr_t)&cgd->ident_data, 1229 (caddr_t)ada_quirk_table, 1230 sizeof(ada_quirk_table)/sizeof(*ada_quirk_table), 1231 sizeof(*ada_quirk_table), ata_identify_match); 1232 if (match != NULL) 1233 softc->quirks = ((struct ada_quirk_entry *)match)->quirks; 1234 else 1235 softc->quirks = ADA_Q_NONE; 1236 1237 bzero(&cpi, sizeof(cpi)); 1238 xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NONE); 1239 cpi.ccb_h.func_code = XPT_PATH_INQ; 1240 xpt_action((union ccb *)&cpi); 1241 1242 TASK_INIT(&softc->sysctl_task, 0, adasysctlinit, periph); 1243 1244 /* 1245 * Register this media as a disk 1246 */ 1247 (void)cam_periph_hold(periph, PRIBIO); 1248 cam_periph_unlock(periph); 1249 snprintf(announce_buf, sizeof(announce_buf), 1250 "kern.cam.ada.%d.quirks", periph->unit_number); 1251 quirks = softc->quirks; 1252 TUNABLE_INT_FETCH(announce_buf, &quirks); 1253 softc->quirks = quirks; 1254 softc->read_ahead = -1; 1255 snprintf(announce_buf, sizeof(announce_buf), 1256 "kern.cam.ada.%d.read_ahead", periph->unit_number); 1257 TUNABLE_INT_FETCH(announce_buf, &softc->read_ahead); 1258 softc->write_cache = -1; 1259 snprintf(announce_buf, sizeof(announce_buf), 1260 "kern.cam.ada.%d.write_cache", periph->unit_number); 1261 TUNABLE_INT_FETCH(announce_buf, &softc->write_cache); 1262 /* Disable queue sorting for non-rotational media by default. */ 1263 if (cgd->ident_data.media_rotation_rate == ATA_RATE_NON_ROTATING) 1264 softc->sort_io_queue = 0; 1265 else 1266 softc->sort_io_queue = -1; 1267 adagetparams(periph, cgd); 1268 softc->disk = disk_alloc(); 1269 softc->disk->d_rotation_rate = cgd->ident_data.media_rotation_rate; 1270 softc->disk->d_devstat = devstat_new_entry(periph->periph_name, 1271 periph->unit_number, softc->params.secsize, 1272 DEVSTAT_ALL_SUPPORTED, 1273 DEVSTAT_TYPE_DIRECT | 1274 XPORT_DEVSTAT_TYPE(cpi.transport), 1275 DEVSTAT_PRIORITY_DISK); 1276 softc->disk->d_open = adaopen; 1277 softc->disk->d_close = adaclose; 1278 softc->disk->d_strategy = adastrategy; 1279 softc->disk->d_getattr = adagetattr; 1280 softc->disk->d_dump = adadump; 1281 softc->disk->d_gone = adadiskgonecb; 1282 softc->disk->d_name = "ada"; 1283 softc->disk->d_drv1 = periph; 1284 maxio = cpi.maxio; /* Honor max I/O size of SIM */ 1285 if (maxio == 0) 1286 maxio = DFLTPHYS; /* traditional default */ 1287 else if (maxio > MAXPHYS) 1288 maxio = MAXPHYS; /* for safety */ 1289 if (softc->flags & ADA_FLAG_CAN_48BIT) 1290 maxio = min(maxio, 65536 * softc->params.secsize); 1291 else /* 28bit ATA command limit */ 1292 maxio = min(maxio, 256 * softc->params.secsize); 1293 softc->disk->d_maxsize = maxio; 1294 softc->disk->d_unit = periph->unit_number; 1295 softc->disk->d_flags = DISKFLAG_DIRECT_COMPLETION; 1296 if (softc->flags & ADA_FLAG_CAN_FLUSHCACHE) 1297 softc->disk->d_flags |= DISKFLAG_CANFLUSHCACHE; 1298 if (softc->flags & ADA_FLAG_CAN_TRIM) { 1299 softc->disk->d_flags |= DISKFLAG_CANDELETE; 1300 softc->disk->d_delmaxsize = softc->params.secsize * 1301 ATA_DSM_RANGE_MAX * 1302 softc->trim_max_ranges; 1303 } else if ((softc->flags & ADA_FLAG_CAN_CFA) && 1304 !(softc->flags & ADA_FLAG_CAN_48BIT)) { 1305 softc->disk->d_flags |= DISKFLAG_CANDELETE; 1306 softc->disk->d_delmaxsize = 256 * softc->params.secsize; 1307 } else 1308 softc->disk->d_delmaxsize = maxio; 1309 if ((cpi.hba_misc & PIM_UNMAPPED) != 0) 1310 softc->disk->d_flags |= DISKFLAG_UNMAPPED_BIO; 1311 strlcpy(softc->disk->d_descr, cgd->ident_data.model, 1312 MIN(sizeof(softc->disk->d_descr), sizeof(cgd->ident_data.model))); 1313 strlcpy(softc->disk->d_ident, cgd->ident_data.serial, 1314 MIN(sizeof(softc->disk->d_ident), sizeof(cgd->ident_data.serial))); 1315 softc->disk->d_hba_vendor = cpi.hba_vendor; 1316 softc->disk->d_hba_device = cpi.hba_device; 1317 softc->disk->d_hba_subvendor = cpi.hba_subvendor; 1318 softc->disk->d_hba_subdevice = cpi.hba_subdevice; 1319 1320 softc->disk->d_sectorsize = softc->params.secsize; 1321 softc->disk->d_mediasize = (off_t)softc->params.sectors * 1322 softc->params.secsize; 1323 if (ata_physical_sector_size(&cgd->ident_data) != 1324 softc->params.secsize) { 1325 softc->disk->d_stripesize = 1326 ata_physical_sector_size(&cgd->ident_data); 1327 softc->disk->d_stripeoffset = (softc->disk->d_stripesize - 1328 ata_logical_sector_offset(&cgd->ident_data)) % 1329 softc->disk->d_stripesize; 1330 } else if (softc->quirks & ADA_Q_4K) { 1331 softc->disk->d_stripesize = 4096; 1332 softc->disk->d_stripeoffset = 0; 1333 } 1334 softc->disk->d_fwsectors = softc->params.secs_per_track; 1335 softc->disk->d_fwheads = softc->params.heads; 1336 ata_disk_firmware_geom_adjust(softc->disk); 1337 1338 if (ada_legacy_aliases) { 1339 #ifdef ATA_STATIC_ID 1340 legacy_id = xpt_path_legacy_ata_id(periph->path); 1341 #else 1342 legacy_id = softc->disk->d_unit; 1343 #endif 1344 if (legacy_id >= 0) { 1345 snprintf(announce_buf, sizeof(announce_buf), 1346 "kern.devalias.%s%d", 1347 softc->disk->d_name, softc->disk->d_unit); 1348 snprintf(buf1, sizeof(buf1), 1349 "ad%d", legacy_id); 1350 kern_setenv(announce_buf, buf1); 1351 } 1352 } else 1353 legacy_id = -1; 1354 /* 1355 * Acquire a reference to the periph before we register with GEOM. 1356 * We'll release this reference once GEOM calls us back (via 1357 * adadiskgonecb()) telling us that our provider has been freed. 1358 */ 1359 if (cam_periph_acquire(periph) != CAM_REQ_CMP) { 1360 xpt_print(periph->path, "%s: lost periph during " 1361 "registration!\n", __func__); 1362 cam_periph_lock(periph); 1363 return (CAM_REQ_CMP_ERR); 1364 } 1365 disk_create(softc->disk, DISK_VERSION); 1366 cam_periph_lock(periph); 1367 cam_periph_unhold(periph); 1368 1369 dp = &softc->params; 1370 snprintf(announce_buf, sizeof(announce_buf), 1371 "%juMB (%ju %u byte sectors: %dH %dS/T %dC)", 1372 (uintmax_t)(((uintmax_t)dp->secsize * 1373 dp->sectors) / (1024*1024)), 1374 (uintmax_t)dp->sectors, 1375 dp->secsize, dp->heads, 1376 dp->secs_per_track, dp->cylinders); 1377 xpt_announce_periph(periph, announce_buf); 1378 xpt_announce_quirks(periph, softc->quirks, ADA_Q_BIT_STRING); 1379 if (legacy_id >= 0) 1380 printf("%s%d: Previously was known as ad%d\n", 1381 periph->periph_name, periph->unit_number, legacy_id); 1382 1383 /* 1384 * Create our sysctl variables, now that we know 1385 * we have successfully attached. 1386 */ 1387 if (cam_periph_acquire(periph) == CAM_REQ_CMP) 1388 taskqueue_enqueue(taskqueue_thread, &softc->sysctl_task); 1389 1390 /* 1391 * Add async callbacks for bus reset and 1392 * bus device reset calls. I don't bother 1393 * checking if this fails as, in most cases, 1394 * the system will function just fine without 1395 * them and the only alternative would be to 1396 * not attach the device on failure. 1397 */ 1398 xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE | 1399 AC_GETDEV_CHANGED | AC_ADVINFO_CHANGED, 1400 adaasync, periph, periph->path); 1401 1402 /* 1403 * Schedule a periodic event to occasionally send an 1404 * ordered tag to a device. 1405 */ 1406 callout_init_mtx(&softc->sendordered_c, cam_periph_mtx(periph), 0); 1407 callout_reset(&softc->sendordered_c, 1408 (ada_default_timeout * hz) / ADA_ORDEREDTAG_INTERVAL, 1409 adasendorderedtag, softc); 1410 1411 if (ADA_RA >= 0 && 1412 cgd->ident_data.support.command1 & ATA_SUPPORT_LOOKAHEAD) { 1413 softc->state = ADA_STATE_RAHEAD; 1414 } else if (ADA_WC >= 0 && 1415 cgd->ident_data.support.command1 & ATA_SUPPORT_WRITECACHE) { 1416 softc->state = ADA_STATE_WCACHE; 1417 } else { 1418 softc->state = ADA_STATE_NORMAL; 1419 return(CAM_REQ_CMP); 1420 } 1421 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 1422 softc->state = ADA_STATE_NORMAL; 1423 else 1424 xpt_schedule(periph, CAM_PRIORITY_DEV); 1425 return(CAM_REQ_CMP); 1426 } 1427 1428 static void 1429 ada_dsmtrim(struct ada_softc *softc, struct bio *bp, struct ccb_ataio *ataio) 1430 { 1431 struct trim_request *req = &softc->trim_req; 1432 uint64_t lastlba = (uint64_t)-1; 1433 int c, lastcount = 0, off, ranges = 0; 1434 1435 bzero(req, sizeof(*req)); 1436 TAILQ_INIT(&req->bps); 1437 do { 1438 uint64_t lba = bp->bio_pblkno; 1439 int count = bp->bio_bcount / softc->params.secsize; 1440 1441 bioq_remove(&softc->trim_queue, bp); 1442 1443 /* Try to extend the previous range. */ 1444 if (lba == lastlba) { 1445 c = min(count, ATA_DSM_RANGE_MAX - lastcount); 1446 lastcount += c; 1447 off = (ranges - 1) * ATA_DSM_RANGE_SIZE; 1448 req->data[off + 6] = lastcount & 0xff; 1449 req->data[off + 7] = 1450 (lastcount >> 8) & 0xff; 1451 count -= c; 1452 lba += c; 1453 } 1454 1455 while (count > 0) { 1456 c = min(count, ATA_DSM_RANGE_MAX); 1457 off = ranges * ATA_DSM_RANGE_SIZE; 1458 req->data[off + 0] = lba & 0xff; 1459 req->data[off + 1] = (lba >> 8) & 0xff; 1460 req->data[off + 2] = (lba >> 16) & 0xff; 1461 req->data[off + 3] = (lba >> 24) & 0xff; 1462 req->data[off + 4] = (lba >> 32) & 0xff; 1463 req->data[off + 5] = (lba >> 40) & 0xff; 1464 req->data[off + 6] = c & 0xff; 1465 req->data[off + 7] = (c >> 8) & 0xff; 1466 lba += c; 1467 count -= c; 1468 lastcount = c; 1469 ranges++; 1470 /* 1471 * Its the caller's responsibility to ensure the 1472 * request will fit so we don't need to check for 1473 * overrun here 1474 */ 1475 } 1476 lastlba = lba; 1477 TAILQ_INSERT_TAIL(&req->bps, bp, bio_queue); 1478 bp = bioq_first(&softc->trim_queue); 1479 if (bp == NULL || 1480 bp->bio_bcount / softc->params.secsize > 1481 (softc->trim_max_ranges - ranges) * ATA_DSM_RANGE_MAX) 1482 break; 1483 } while (1); 1484 cam_fill_ataio(ataio, 1485 ada_retry_count, 1486 adadone, 1487 CAM_DIR_OUT, 1488 0, 1489 req->data, 1490 ((ranges + ATA_DSM_BLK_RANGES - 1) / 1491 ATA_DSM_BLK_RANGES) * ATA_DSM_BLK_SIZE, 1492 ada_default_timeout * 1000); 1493 ata_48bit_cmd(ataio, ATA_DATA_SET_MANAGEMENT, 1494 ATA_DSM_TRIM, 0, (ranges + ATA_DSM_BLK_RANGES - 1495 1) / ATA_DSM_BLK_RANGES); 1496 } 1497 1498 static void 1499 ada_cfaerase(struct ada_softc *softc, struct bio *bp, struct ccb_ataio *ataio) 1500 { 1501 struct trim_request *req = &softc->trim_req; 1502 uint64_t lba = bp->bio_pblkno; 1503 uint16_t count = bp->bio_bcount / softc->params.secsize; 1504 1505 bzero(req, sizeof(*req)); 1506 TAILQ_INIT(&req->bps); 1507 bioq_remove(&softc->trim_queue, bp); 1508 TAILQ_INSERT_TAIL(&req->bps, bp, bio_queue); 1509 1510 cam_fill_ataio(ataio, 1511 ada_retry_count, 1512 adadone, 1513 CAM_DIR_NONE, 1514 0, 1515 NULL, 1516 0, 1517 ada_default_timeout*1000); 1518 1519 if (count >= 256) 1520 count = 0; 1521 ata_28bit_cmd(ataio, ATA_CFA_ERASE, 0, lba, count); 1522 } 1523 1524 static void 1525 adastart(struct cam_periph *periph, union ccb *start_ccb) 1526 { 1527 struct ada_softc *softc = (struct ada_softc *)periph->softc; 1528 struct ccb_ataio *ataio = &start_ccb->ataio; 1529 1530 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("adastart\n")); 1531 1532 switch (softc->state) { 1533 case ADA_STATE_NORMAL: 1534 { 1535 struct bio *bp; 1536 u_int8_t tag_code; 1537 1538 /* Run TRIM if not running yet. */ 1539 if (!softc->trim_running && 1540 (bp = bioq_first(&softc->trim_queue)) != 0) { 1541 if (softc->flags & ADA_FLAG_CAN_TRIM) { 1542 ada_dsmtrim(softc, bp, ataio); 1543 } else if ((softc->flags & ADA_FLAG_CAN_CFA) && 1544 !(softc->flags & ADA_FLAG_CAN_48BIT)) { 1545 ada_cfaerase(softc, bp, ataio); 1546 } else { 1547 panic("adastart: BIO_DELETE without method, not possible."); 1548 } 1549 softc->trim_running = 1; 1550 start_ccb->ccb_h.ccb_state = ADA_CCB_TRIM; 1551 start_ccb->ccb_h.flags |= CAM_UNLOCKED; 1552 goto out; 1553 } 1554 /* Run regular command. */ 1555 bp = bioq_first(&softc->bio_queue); 1556 if (bp == NULL) { 1557 xpt_release_ccb(start_ccb); 1558 break; 1559 } 1560 bioq_remove(&softc->bio_queue, bp); 1561 1562 if ((bp->bio_flags & BIO_ORDERED) != 0 1563 || (softc->flags & ADA_FLAG_NEED_OTAG) != 0) { 1564 softc->flags &= ~ADA_FLAG_NEED_OTAG; 1565 softc->flags |= ADA_FLAG_WAS_OTAG; 1566 tag_code = 0; 1567 } else { 1568 tag_code = 1; 1569 } 1570 switch (bp->bio_cmd) { 1571 case BIO_WRITE: 1572 softc->flags |= ADA_FLAG_DIRTY; 1573 /* FALLTHROUGH */ 1574 case BIO_READ: 1575 { 1576 uint64_t lba = bp->bio_pblkno; 1577 uint16_t count = bp->bio_bcount / softc->params.secsize; 1578 #ifdef ADA_TEST_FAILURE 1579 int fail = 0; 1580 1581 /* 1582 * Support the failure ioctls. If the command is a 1583 * read, and there are pending forced read errors, or 1584 * if a write and pending write errors, then fail this 1585 * operation with EIO. This is useful for testing 1586 * purposes. Also, support having every Nth read fail. 1587 * 1588 * This is a rather blunt tool. 1589 */ 1590 if (bp->bio_cmd == BIO_READ) { 1591 if (softc->force_read_error) { 1592 softc->force_read_error--; 1593 fail = 1; 1594 } 1595 if (softc->periodic_read_error > 0) { 1596 if (++softc->periodic_read_count >= 1597 softc->periodic_read_error) { 1598 softc->periodic_read_count = 0; 1599 fail = 1; 1600 } 1601 } 1602 } else { 1603 if (softc->force_write_error) { 1604 softc->force_write_error--; 1605 fail = 1; 1606 } 1607 } 1608 if (fail) { 1609 bp->bio_error = EIO; 1610 bp->bio_flags |= BIO_ERROR; 1611 biodone(bp); 1612 xpt_release_ccb(start_ccb); 1613 adaschedule(periph); 1614 return; 1615 } 1616 #endif 1617 KASSERT((bp->bio_flags & BIO_UNMAPPED) == 0 || 1618 round_page(bp->bio_bcount + bp->bio_ma_offset) / 1619 PAGE_SIZE == bp->bio_ma_n, 1620 ("Short bio %p", bp)); 1621 cam_fill_ataio(ataio, 1622 ada_retry_count, 1623 adadone, 1624 (bp->bio_cmd == BIO_READ ? CAM_DIR_IN : 1625 CAM_DIR_OUT) | ((bp->bio_flags & BIO_UNMAPPED) 1626 != 0 ? CAM_DATA_BIO : 0), 1627 tag_code, 1628 ((bp->bio_flags & BIO_UNMAPPED) != 0) ? (void *)bp : 1629 bp->bio_data, 1630 bp->bio_bcount, 1631 ada_default_timeout*1000); 1632 1633 if ((softc->flags & ADA_FLAG_CAN_NCQ) && tag_code) { 1634 if (bp->bio_cmd == BIO_READ) { 1635 ata_ncq_cmd(ataio, ATA_READ_FPDMA_QUEUED, 1636 lba, count); 1637 } else { 1638 ata_ncq_cmd(ataio, ATA_WRITE_FPDMA_QUEUED, 1639 lba, count); 1640 } 1641 } else if ((softc->flags & ADA_FLAG_CAN_48BIT) && 1642 (lba + count >= ATA_MAX_28BIT_LBA || 1643 count > 256)) { 1644 if (softc->flags & ADA_FLAG_CAN_DMA48) { 1645 if (bp->bio_cmd == BIO_READ) { 1646 ata_48bit_cmd(ataio, ATA_READ_DMA48, 1647 0, lba, count); 1648 } else { 1649 ata_48bit_cmd(ataio, ATA_WRITE_DMA48, 1650 0, lba, count); 1651 } 1652 } else { 1653 if (bp->bio_cmd == BIO_READ) { 1654 ata_48bit_cmd(ataio, ATA_READ_MUL48, 1655 0, lba, count); 1656 } else { 1657 ata_48bit_cmd(ataio, ATA_WRITE_MUL48, 1658 0, lba, count); 1659 } 1660 } 1661 } else { 1662 if (count == 256) 1663 count = 0; 1664 if (softc->flags & ADA_FLAG_CAN_DMA) { 1665 if (bp->bio_cmd == BIO_READ) { 1666 ata_28bit_cmd(ataio, ATA_READ_DMA, 1667 0, lba, count); 1668 } else { 1669 ata_28bit_cmd(ataio, ATA_WRITE_DMA, 1670 0, lba, count); 1671 } 1672 } else { 1673 if (bp->bio_cmd == BIO_READ) { 1674 ata_28bit_cmd(ataio, ATA_READ_MUL, 1675 0, lba, count); 1676 } else { 1677 ata_28bit_cmd(ataio, ATA_WRITE_MUL, 1678 0, lba, count); 1679 } 1680 } 1681 } 1682 break; 1683 } 1684 case BIO_FLUSH: 1685 cam_fill_ataio(ataio, 1686 1, 1687 adadone, 1688 CAM_DIR_NONE, 1689 0, 1690 NULL, 1691 0, 1692 ada_default_timeout*1000); 1693 1694 if (softc->flags & ADA_FLAG_CAN_48BIT) 1695 ata_48bit_cmd(ataio, ATA_FLUSHCACHE48, 0, 0, 0); 1696 else 1697 ata_28bit_cmd(ataio, ATA_FLUSHCACHE, 0, 0, 0); 1698 break; 1699 } 1700 start_ccb->ccb_h.ccb_state = ADA_CCB_BUFFER_IO; 1701 start_ccb->ccb_h.flags |= CAM_UNLOCKED; 1702 out: 1703 start_ccb->ccb_h.ccb_bp = bp; 1704 softc->outstanding_cmds++; 1705 softc->refcount++; 1706 cam_periph_unlock(periph); 1707 xpt_action(start_ccb); 1708 cam_periph_lock(periph); 1709 softc->refcount--; 1710 1711 /* May have more work to do, so ensure we stay scheduled */ 1712 adaschedule(periph); 1713 break; 1714 } 1715 case ADA_STATE_RAHEAD: 1716 case ADA_STATE_WCACHE: 1717 { 1718 cam_fill_ataio(ataio, 1719 1, 1720 adadone, 1721 CAM_DIR_NONE, 1722 0, 1723 NULL, 1724 0, 1725 ada_default_timeout*1000); 1726 1727 if (softc->state == ADA_STATE_RAHEAD) { 1728 ata_28bit_cmd(ataio, ATA_SETFEATURES, ADA_RA ? 1729 ATA_SF_ENAB_RCACHE : ATA_SF_DIS_RCACHE, 0, 0); 1730 start_ccb->ccb_h.ccb_state = ADA_CCB_RAHEAD; 1731 } else { 1732 ata_28bit_cmd(ataio, ATA_SETFEATURES, ADA_WC ? 1733 ATA_SF_ENAB_WCACHE : ATA_SF_DIS_WCACHE, 0, 0); 1734 start_ccb->ccb_h.ccb_state = ADA_CCB_WCACHE; 1735 } 1736 start_ccb->ccb_h.flags |= CAM_DEV_QFREEZE; 1737 xpt_action(start_ccb); 1738 break; 1739 } 1740 } 1741 } 1742 1743 static void 1744 adadone(struct cam_periph *periph, union ccb *done_ccb) 1745 { 1746 struct ada_softc *softc; 1747 struct ccb_ataio *ataio; 1748 struct ccb_getdev *cgd; 1749 struct cam_path *path; 1750 int state; 1751 1752 softc = (struct ada_softc *)periph->softc; 1753 ataio = &done_ccb->ataio; 1754 path = done_ccb->ccb_h.path; 1755 1756 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("adadone\n")); 1757 1758 state = ataio->ccb_h.ccb_state & ADA_CCB_TYPE_MASK; 1759 switch (state) { 1760 case ADA_CCB_BUFFER_IO: 1761 case ADA_CCB_TRIM: 1762 { 1763 struct bio *bp; 1764 int error; 1765 1766 cam_periph_lock(periph); 1767 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1768 error = adaerror(done_ccb, 0, 0); 1769 if (error == ERESTART) { 1770 /* A retry was scheduled, so just return. */ 1771 cam_periph_unlock(periph); 1772 return; 1773 } 1774 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1775 cam_release_devq(path, 1776 /*relsim_flags*/0, 1777 /*reduction*/0, 1778 /*timeout*/0, 1779 /*getcount_only*/0); 1780 } else { 1781 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1782 panic("REQ_CMP with QFRZN"); 1783 error = 0; 1784 } 1785 bp = (struct bio *)done_ccb->ccb_h.ccb_bp; 1786 bp->bio_error = error; 1787 if (error != 0) { 1788 bp->bio_resid = bp->bio_bcount; 1789 bp->bio_flags |= BIO_ERROR; 1790 } else { 1791 if (state == ADA_CCB_TRIM) 1792 bp->bio_resid = 0; 1793 else 1794 bp->bio_resid = ataio->resid; 1795 if (bp->bio_resid > 0) 1796 bp->bio_flags |= BIO_ERROR; 1797 } 1798 softc->outstanding_cmds--; 1799 if (softc->outstanding_cmds == 0) 1800 softc->flags |= ADA_FLAG_WAS_OTAG; 1801 xpt_release_ccb(done_ccb); 1802 if (state == ADA_CCB_TRIM) { 1803 TAILQ_HEAD(, bio) queue; 1804 struct bio *bp1; 1805 1806 TAILQ_INIT(&queue); 1807 TAILQ_CONCAT(&queue, &softc->trim_req.bps, bio_queue); 1808 /* 1809 * Normally, the xpt_release_ccb() above would make sure 1810 * that when we have more work to do, that work would 1811 * get kicked off. However, we specifically keep 1812 * trim_running set to 0 before the call above to allow 1813 * other I/O to progress when many BIO_DELETE requests 1814 * are pushed down. We set trim_running to 0 and call 1815 * daschedule again so that we don't stall if there are 1816 * no other I/Os pending apart from BIO_DELETEs. 1817 */ 1818 softc->trim_running = 0; 1819 adaschedule(periph); 1820 cam_periph_unlock(periph); 1821 while ((bp1 = TAILQ_FIRST(&queue)) != NULL) { 1822 TAILQ_REMOVE(&queue, bp1, bio_queue); 1823 bp1->bio_error = error; 1824 if (error != 0) { 1825 bp1->bio_flags |= BIO_ERROR; 1826 bp1->bio_resid = bp1->bio_bcount; 1827 } else 1828 bp1->bio_resid = 0; 1829 biodone(bp1); 1830 } 1831 } else { 1832 cam_periph_unlock(periph); 1833 biodone(bp); 1834 } 1835 return; 1836 } 1837 case ADA_CCB_RAHEAD: 1838 { 1839 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1840 if (adaerror(done_ccb, 0, 0) == ERESTART) { 1841 out: 1842 /* Drop freeze taken due to CAM_DEV_QFREEZE */ 1843 cam_release_devq(path, 0, 0, 0, FALSE); 1844 return; 1845 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1846 cam_release_devq(path, 1847 /*relsim_flags*/0, 1848 /*reduction*/0, 1849 /*timeout*/0, 1850 /*getcount_only*/0); 1851 } 1852 } 1853 1854 /* 1855 * Since our peripheral may be invalidated by an error 1856 * above or an external event, we must release our CCB 1857 * before releasing the reference on the peripheral. 1858 * The peripheral will only go away once the last reference 1859 * is removed, and we need it around for the CCB release 1860 * operation. 1861 */ 1862 cgd = (struct ccb_getdev *)done_ccb; 1863 xpt_setup_ccb(&cgd->ccb_h, path, CAM_PRIORITY_NORMAL); 1864 cgd->ccb_h.func_code = XPT_GDEV_TYPE; 1865 xpt_action((union ccb *)cgd); 1866 if (ADA_WC >= 0 && 1867 cgd->ident_data.support.command1 & ATA_SUPPORT_WRITECACHE) { 1868 softc->state = ADA_STATE_WCACHE; 1869 xpt_release_ccb(done_ccb); 1870 xpt_schedule(periph, CAM_PRIORITY_DEV); 1871 goto out; 1872 } 1873 softc->state = ADA_STATE_NORMAL; 1874 xpt_release_ccb(done_ccb); 1875 /* Drop freeze taken due to CAM_DEV_QFREEZE */ 1876 cam_release_devq(path, 0, 0, 0, FALSE); 1877 adaschedule(periph); 1878 cam_periph_release_locked(periph); 1879 return; 1880 } 1881 case ADA_CCB_WCACHE: 1882 { 1883 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1884 if (adaerror(done_ccb, 0, 0) == ERESTART) { 1885 goto out; 1886 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1887 cam_release_devq(path, 1888 /*relsim_flags*/0, 1889 /*reduction*/0, 1890 /*timeout*/0, 1891 /*getcount_only*/0); 1892 } 1893 } 1894 1895 softc->state = ADA_STATE_NORMAL; 1896 /* 1897 * Since our peripheral may be invalidated by an error 1898 * above or an external event, we must release our CCB 1899 * before releasing the reference on the peripheral. 1900 * The peripheral will only go away once the last reference 1901 * is removed, and we need it around for the CCB release 1902 * operation. 1903 */ 1904 xpt_release_ccb(done_ccb); 1905 /* Drop freeze taken due to CAM_DEV_QFREEZE */ 1906 cam_release_devq(path, 0, 0, 0, FALSE); 1907 adaschedule(periph); 1908 cam_periph_release_locked(periph); 1909 return; 1910 } 1911 case ADA_CCB_DUMP: 1912 /* No-op. We're polling */ 1913 return; 1914 default: 1915 break; 1916 } 1917 xpt_release_ccb(done_ccb); 1918 } 1919 1920 static int 1921 adaerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 1922 { 1923 1924 return(cam_periph_error(ccb, cam_flags, sense_flags, NULL)); 1925 } 1926 1927 static void 1928 adagetparams(struct cam_periph *periph, struct ccb_getdev *cgd) 1929 { 1930 struct ada_softc *softc = (struct ada_softc *)periph->softc; 1931 struct disk_params *dp = &softc->params; 1932 u_int64_t lbasize48; 1933 u_int32_t lbasize; 1934 1935 dp->secsize = ata_logical_sector_size(&cgd->ident_data); 1936 if ((cgd->ident_data.atavalid & ATA_FLAG_54_58) && 1937 cgd->ident_data.current_heads && cgd->ident_data.current_sectors) { 1938 dp->heads = cgd->ident_data.current_heads; 1939 dp->secs_per_track = cgd->ident_data.current_sectors; 1940 dp->cylinders = cgd->ident_data.cylinders; 1941 dp->sectors = (u_int32_t)cgd->ident_data.current_size_1 | 1942 ((u_int32_t)cgd->ident_data.current_size_2 << 16); 1943 } else { 1944 dp->heads = cgd->ident_data.heads; 1945 dp->secs_per_track = cgd->ident_data.sectors; 1946 dp->cylinders = cgd->ident_data.cylinders; 1947 dp->sectors = cgd->ident_data.cylinders * dp->heads * dp->secs_per_track; 1948 } 1949 lbasize = (u_int32_t)cgd->ident_data.lba_size_1 | 1950 ((u_int32_t)cgd->ident_data.lba_size_2 << 16); 1951 1952 /* use the 28bit LBA size if valid or bigger than the CHS mapping */ 1953 if (cgd->ident_data.cylinders == 16383 || dp->sectors < lbasize) 1954 dp->sectors = lbasize; 1955 1956 /* use the 48bit LBA size if valid */ 1957 lbasize48 = ((u_int64_t)cgd->ident_data.lba_size48_1) | 1958 ((u_int64_t)cgd->ident_data.lba_size48_2 << 16) | 1959 ((u_int64_t)cgd->ident_data.lba_size48_3 << 32) | 1960 ((u_int64_t)cgd->ident_data.lba_size48_4 << 48); 1961 if ((cgd->ident_data.support.command2 & ATA_SUPPORT_ADDRESS48) && 1962 lbasize48 > ATA_MAX_28BIT_LBA) 1963 dp->sectors = lbasize48; 1964 } 1965 1966 static void 1967 adasendorderedtag(void *arg) 1968 { 1969 struct ada_softc *softc = arg; 1970 1971 if (ada_send_ordered) { 1972 if (softc->outstanding_cmds > 0) { 1973 if ((softc->flags & ADA_FLAG_WAS_OTAG) == 0) 1974 softc->flags |= ADA_FLAG_NEED_OTAG; 1975 softc->flags &= ~ADA_FLAG_WAS_OTAG; 1976 } 1977 } 1978 /* Queue us up again */ 1979 callout_reset(&softc->sendordered_c, 1980 (ada_default_timeout * hz) / ADA_ORDEREDTAG_INTERVAL, 1981 adasendorderedtag, softc); 1982 } 1983 1984 /* 1985 * Step through all ADA peripheral drivers, and if the device is still open, 1986 * sync the disk cache to physical media. 1987 */ 1988 static void 1989 adaflush(void) 1990 { 1991 struct cam_periph *periph; 1992 struct ada_softc *softc; 1993 union ccb *ccb; 1994 int error; 1995 1996 CAM_PERIPH_FOREACH(periph, &adadriver) { 1997 softc = (struct ada_softc *)periph->softc; 1998 if (SCHEDULER_STOPPED()) { 1999 /* If we paniced with the lock held, do not recurse. */ 2000 if (!cam_periph_owned(periph) && 2001 (softc->flags & ADA_FLAG_OPEN)) { 2002 adadump(softc->disk, NULL, 0, 0, 0); 2003 } 2004 continue; 2005 } 2006 cam_periph_lock(periph); 2007 /* 2008 * We only sync the cache if the drive is still open, and 2009 * if the drive is capable of it.. 2010 */ 2011 if (((softc->flags & ADA_FLAG_OPEN) == 0) || 2012 (softc->flags & ADA_FLAG_CAN_FLUSHCACHE) == 0) { 2013 cam_periph_unlock(periph); 2014 continue; 2015 } 2016 2017 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL); 2018 cam_fill_ataio(&ccb->ataio, 2019 0, 2020 adadone, 2021 CAM_DIR_NONE, 2022 0, 2023 NULL, 2024 0, 2025 ada_default_timeout*1000); 2026 if (softc->flags & ADA_FLAG_CAN_48BIT) 2027 ata_48bit_cmd(&ccb->ataio, ATA_FLUSHCACHE48, 0, 0, 0); 2028 else 2029 ata_28bit_cmd(&ccb->ataio, ATA_FLUSHCACHE, 0, 0, 0); 2030 2031 error = cam_periph_runccb(ccb, adaerror, /*cam_flags*/0, 2032 /*sense_flags*/ SF_NO_RECOVERY | SF_NO_RETRY, 2033 softc->disk->d_devstat); 2034 if (error != 0) 2035 xpt_print(periph->path, "Synchronize cache failed\n"); 2036 xpt_release_ccb(ccb); 2037 cam_periph_unlock(periph); 2038 } 2039 } 2040 2041 static void 2042 adaspindown(uint8_t cmd, int flags) 2043 { 2044 struct cam_periph *periph; 2045 struct ada_softc *softc; 2046 union ccb *ccb; 2047 int error; 2048 2049 CAM_PERIPH_FOREACH(periph, &adadriver) { 2050 /* If we paniced with lock held - not recurse here. */ 2051 if (cam_periph_owned(periph)) 2052 continue; 2053 cam_periph_lock(periph); 2054 softc = (struct ada_softc *)periph->softc; 2055 /* 2056 * We only spin-down the drive if it is capable of it.. 2057 */ 2058 if ((softc->flags & ADA_FLAG_CAN_POWERMGT) == 0) { 2059 cam_periph_unlock(periph); 2060 continue; 2061 } 2062 2063 if (bootverbose) 2064 xpt_print(periph->path, "spin-down\n"); 2065 2066 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL); 2067 cam_fill_ataio(&ccb->ataio, 2068 0, 2069 adadone, 2070 CAM_DIR_NONE | flags, 2071 0, 2072 NULL, 2073 0, 2074 ada_default_timeout*1000); 2075 ata_28bit_cmd(&ccb->ataio, cmd, 0, 0, 0); 2076 2077 error = cam_periph_runccb(ccb, adaerror, /*cam_flags*/0, 2078 /*sense_flags*/ SF_NO_RECOVERY | SF_NO_RETRY, 2079 softc->disk->d_devstat); 2080 if (error != 0) 2081 xpt_print(periph->path, "Spin-down disk failed\n"); 2082 xpt_release_ccb(ccb); 2083 cam_periph_unlock(periph); 2084 } 2085 } 2086 2087 static void 2088 adashutdown(void *arg, int howto) 2089 { 2090 2091 adaflush(); 2092 if (ada_spindown_shutdown != 0 && 2093 (howto & (RB_HALT | RB_POWEROFF)) != 0) 2094 adaspindown(ATA_STANDBY_IMMEDIATE, 0); 2095 } 2096 2097 static void 2098 adasuspend(void *arg) 2099 { 2100 2101 adaflush(); 2102 if (ada_spindown_suspend != 0) 2103 adaspindown(ATA_SLEEP, CAM_DEV_QFREEZE); 2104 } 2105 2106 static void 2107 adaresume(void *arg) 2108 { 2109 struct cam_periph *periph; 2110 struct ada_softc *softc; 2111 2112 if (ada_spindown_suspend == 0) 2113 return; 2114 2115 CAM_PERIPH_FOREACH(periph, &adadriver) { 2116 cam_periph_lock(periph); 2117 softc = (struct ada_softc *)periph->softc; 2118 /* 2119 * We only spin-down the drive if it is capable of it.. 2120 */ 2121 if ((softc->flags & ADA_FLAG_CAN_POWERMGT) == 0) { 2122 cam_periph_unlock(periph); 2123 continue; 2124 } 2125 2126 if (bootverbose) 2127 xpt_print(periph->path, "resume\n"); 2128 2129 /* 2130 * Drop freeze taken due to CAM_DEV_QFREEZE flag set on 2131 * sleep request. 2132 */ 2133 cam_release_devq(periph->path, 2134 /*relsim_flags*/0, 2135 /*openings*/0, 2136 /*timeout*/0, 2137 /*getcount_only*/0); 2138 2139 cam_periph_unlock(periph); 2140 } 2141 } 2142 2143 #endif /* _KERNEL */ 2144