ata_da.c revision 297681
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: stable/10/sys/cam/ata/ata_da.c 297681 2016-04-07 18:03:42Z sbruno $"); 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 71typedef enum { 72 ADA_STATE_RAHEAD, 73 ADA_STATE_WCACHE, 74 ADA_STATE_NORMAL 75} ada_state; 76 77typedef 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 93typedef 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 102typedef 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 115struct 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) 125struct trim_request { 126 uint8_t data[TRIM_MAX_RANGES * ATA_DSM_RANGE_SIZE]; 127 TAILQ_HEAD(, bio) bps; 128}; 129 130struct 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 158struct ada_quirk_entry { 159 struct scsi_inquiry_pattern inq_pat; 160 ada_quirks quirks; 161}; 162 163static 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 850 SSDs 470 * 4k optimised 471 */ 472 { T_DIRECT, SIP_MEDIA_FIXED, "*", "Samsung SSD 850*", "*" }, 473 /*quirks*/ADA_Q_4K 474 }, 475 { 476 /* 477 * Samsung 843T Series SSDs (MZ7WD*) 478 * Samsung PM851 Series SSDs (MZ7TE*) 479 * Samsung PM853T Series SSDs (MZ7GE*) 480 * Samsung SM863 Series SSDs (MZ7KM*) 481 * 4k optimised 482 */ 483 { T_DIRECT, SIP_MEDIA_FIXED, "*", "SAMSUNG MZ7*", "*" }, 484 /*quirks*/ADA_Q_4K 485 }, 486 { 487 /* 488 * Samsung SM863 Series SSDs 489 * 4k optimised 490 */ 491 { T_DIRECT, SIP_MEDIA_FIXED, "*", "SAMSUNG MZ7KM*", "*" }, 492 /*quirks*/ADA_Q_4K 493 }, 494 { 495 /* 496 * SuperTalent TeraDrive CT SSDs 497 * 4k optimised & trim only works in 4k requests + 4k aligned 498 */ 499 { T_DIRECT, SIP_MEDIA_FIXED, "*", "FTM??CT25H*", "*" }, 500 /*quirks*/ADA_Q_4K 501 }, 502 { 503 /* 504 * XceedIOPS SATA SSDs 505 * 4k optimised 506 */ 507 { T_DIRECT, SIP_MEDIA_FIXED, "*", "SG9XCS2D*", "*" }, 508 /*quirks*/ADA_Q_4K 509 }, 510 { 511 /* Default */ 512 { 513 T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, 514 /*vendor*/"*", /*product*/"*", /*revision*/"*" 515 }, 516 /*quirks*/0 517 }, 518}; 519 520static disk_strategy_t adastrategy; 521static dumper_t adadump; 522static periph_init_t adainit; 523static void adaasync(void *callback_arg, u_int32_t code, 524 struct cam_path *path, void *arg); 525static void adasysctlinit(void *context, int pending); 526static periph_ctor_t adaregister; 527static periph_dtor_t adacleanup; 528static periph_start_t adastart; 529static periph_oninv_t adaoninvalidate; 530static void adadone(struct cam_periph *periph, 531 union ccb *done_ccb); 532static int adaerror(union ccb *ccb, u_int32_t cam_flags, 533 u_int32_t sense_flags); 534static void adagetparams(struct cam_periph *periph, 535 struct ccb_getdev *cgd); 536static timeout_t adasendorderedtag; 537static void adashutdown(void *arg, int howto); 538static void adasuspend(void *arg); 539static void adaresume(void *arg); 540 541#ifndef ADA_DEFAULT_LEGACY_ALIASES 542#define ADA_DEFAULT_LEGACY_ALIASES 1 543#endif 544 545#ifndef ADA_DEFAULT_TIMEOUT 546#define ADA_DEFAULT_TIMEOUT 30 /* Timeout in seconds */ 547#endif 548 549#ifndef ADA_DEFAULT_RETRY 550#define ADA_DEFAULT_RETRY 4 551#endif 552 553#ifndef ADA_DEFAULT_SEND_ORDERED 554#define ADA_DEFAULT_SEND_ORDERED 1 555#endif 556 557#ifndef ADA_DEFAULT_SPINDOWN_SHUTDOWN 558#define ADA_DEFAULT_SPINDOWN_SHUTDOWN 1 559#endif 560 561#ifndef ADA_DEFAULT_SPINDOWN_SUSPEND 562#define ADA_DEFAULT_SPINDOWN_SUSPEND 1 563#endif 564 565#ifndef ADA_DEFAULT_READ_AHEAD 566#define ADA_DEFAULT_READ_AHEAD 1 567#endif 568 569#ifndef ADA_DEFAULT_WRITE_CACHE 570#define ADA_DEFAULT_WRITE_CACHE 1 571#endif 572 573#define ADA_RA (softc->read_ahead >= 0 ? \ 574 softc->read_ahead : ada_read_ahead) 575#define ADA_WC (softc->write_cache >= 0 ? \ 576 softc->write_cache : ada_write_cache) 577#define ADA_SIO (softc->sort_io_queue >= 0 ? \ 578 softc->sort_io_queue : cam_sort_io_queues) 579 580/* 581 * Most platforms map firmware geometry to actual, but some don't. If 582 * not overridden, default to nothing. 583 */ 584#ifndef ata_disk_firmware_geom_adjust 585#define ata_disk_firmware_geom_adjust(disk) 586#endif 587 588static int ada_legacy_aliases = ADA_DEFAULT_LEGACY_ALIASES; 589static int ada_retry_count = ADA_DEFAULT_RETRY; 590static int ada_default_timeout = ADA_DEFAULT_TIMEOUT; 591static int ada_send_ordered = ADA_DEFAULT_SEND_ORDERED; 592static int ada_spindown_shutdown = ADA_DEFAULT_SPINDOWN_SHUTDOWN; 593static int ada_spindown_suspend = ADA_DEFAULT_SPINDOWN_SUSPEND; 594static int ada_read_ahead = ADA_DEFAULT_READ_AHEAD; 595static int ada_write_cache = ADA_DEFAULT_WRITE_CACHE; 596 597static SYSCTL_NODE(_kern_cam, OID_AUTO, ada, CTLFLAG_RD, 0, 598 "CAM Direct Access Disk driver"); 599SYSCTL_INT(_kern_cam_ada, OID_AUTO, legacy_aliases, CTLFLAG_RW, 600 &ada_legacy_aliases, 0, "Create legacy-like device aliases"); 601TUNABLE_INT("kern.cam.ada.legacy_aliases", &ada_legacy_aliases); 602SYSCTL_INT(_kern_cam_ada, OID_AUTO, retry_count, CTLFLAG_RW, 603 &ada_retry_count, 0, "Normal I/O retry count"); 604TUNABLE_INT("kern.cam.ada.retry_count", &ada_retry_count); 605SYSCTL_INT(_kern_cam_ada, OID_AUTO, default_timeout, CTLFLAG_RW, 606 &ada_default_timeout, 0, "Normal I/O timeout (in seconds)"); 607TUNABLE_INT("kern.cam.ada.default_timeout", &ada_default_timeout); 608SYSCTL_INT(_kern_cam_ada, OID_AUTO, send_ordered, CTLFLAG_RW, 609 &ada_send_ordered, 0, "Send Ordered Tags"); 610TUNABLE_INT("kern.cam.ada.send_ordered", &ada_send_ordered); 611SYSCTL_INT(_kern_cam_ada, OID_AUTO, spindown_shutdown, CTLFLAG_RW, 612 &ada_spindown_shutdown, 0, "Spin down upon shutdown"); 613TUNABLE_INT("kern.cam.ada.spindown_shutdown", &ada_spindown_shutdown); 614SYSCTL_INT(_kern_cam_ada, OID_AUTO, spindown_suspend, CTLFLAG_RW, 615 &ada_spindown_suspend, 0, "Spin down upon suspend"); 616TUNABLE_INT("kern.cam.ada.spindown_suspend", &ada_spindown_suspend); 617SYSCTL_INT(_kern_cam_ada, OID_AUTO, read_ahead, CTLFLAG_RW, 618 &ada_read_ahead, 0, "Enable disk read-ahead"); 619TUNABLE_INT("kern.cam.ada.read_ahead", &ada_read_ahead); 620SYSCTL_INT(_kern_cam_ada, OID_AUTO, write_cache, CTLFLAG_RW, 621 &ada_write_cache, 0, "Enable disk write cache"); 622TUNABLE_INT("kern.cam.ada.write_cache", &ada_write_cache); 623 624/* 625 * ADA_ORDEREDTAG_INTERVAL determines how often, relative 626 * to the default timeout, we check to see whether an ordered 627 * tagged transaction is appropriate to prevent simple tag 628 * starvation. Since we'd like to ensure that there is at least 629 * 1/2 of the timeout length left for a starved transaction to 630 * complete after we've sent an ordered tag, we must poll at least 631 * four times in every timeout period. This takes care of the worst 632 * case where a starved transaction starts during an interval that 633 * meets the requirement "don't send an ordered tag" test so it takes 634 * us two intervals to determine that a tag must be sent. 635 */ 636#ifndef ADA_ORDEREDTAG_INTERVAL 637#define ADA_ORDEREDTAG_INTERVAL 4 638#endif 639 640static struct periph_driver adadriver = 641{ 642 adainit, "ada", 643 TAILQ_HEAD_INITIALIZER(adadriver.units), /* generation */ 0 644}; 645 646PERIPHDRIVER_DECLARE(ada, adadriver); 647 648static int 649adaopen(struct disk *dp) 650{ 651 struct cam_periph *periph; 652 struct ada_softc *softc; 653 int error; 654 655 periph = (struct cam_periph *)dp->d_drv1; 656 if (cam_periph_acquire(periph) != CAM_REQ_CMP) { 657 return(ENXIO); 658 } 659 660 cam_periph_lock(periph); 661 if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) { 662 cam_periph_unlock(periph); 663 cam_periph_release(periph); 664 return (error); 665 } 666 667 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH, 668 ("adaopen\n")); 669 670 softc = (struct ada_softc *)periph->softc; 671 softc->flags |= ADA_FLAG_OPEN; 672 673 cam_periph_unhold(periph); 674 cam_periph_unlock(periph); 675 return (0); 676} 677 678static int 679adaclose(struct disk *dp) 680{ 681 struct cam_periph *periph; 682 struct ada_softc *softc; 683 union ccb *ccb; 684 int error; 685 686 periph = (struct cam_periph *)dp->d_drv1; 687 softc = (struct ada_softc *)periph->softc; 688 cam_periph_lock(periph); 689 690 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH, 691 ("adaclose\n")); 692 693 /* We only sync the cache if the drive is capable of it. */ 694 if ((softc->flags & ADA_FLAG_DIRTY) != 0 && 695 (softc->flags & ADA_FLAG_CAN_FLUSHCACHE) != 0 && 696 (periph->flags & CAM_PERIPH_INVALID) == 0 && 697 cam_periph_hold(periph, PRIBIO) == 0) { 698 699 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL); 700 cam_fill_ataio(&ccb->ataio, 701 1, 702 adadone, 703 CAM_DIR_NONE, 704 0, 705 NULL, 706 0, 707 ada_default_timeout*1000); 708 709 if (softc->flags & ADA_FLAG_CAN_48BIT) 710 ata_48bit_cmd(&ccb->ataio, ATA_FLUSHCACHE48, 0, 0, 0); 711 else 712 ata_28bit_cmd(&ccb->ataio, ATA_FLUSHCACHE, 0, 0, 0); 713 error = cam_periph_runccb(ccb, adaerror, /*cam_flags*/0, 714 /*sense_flags*/0, softc->disk->d_devstat); 715 716 if (error != 0) 717 xpt_print(periph->path, "Synchronize cache failed\n"); 718 else 719 softc->flags &= ~ADA_FLAG_DIRTY; 720 xpt_release_ccb(ccb); 721 cam_periph_unhold(periph); 722 } 723 724 softc->flags &= ~ADA_FLAG_OPEN; 725 726 while (softc->refcount != 0) 727 cam_periph_sleep(periph, &softc->refcount, PRIBIO, "adaclose", 1); 728 cam_periph_unlock(periph); 729 cam_periph_release(periph); 730 return (0); 731} 732 733static void 734adaschedule(struct cam_periph *periph) 735{ 736 struct ada_softc *softc = (struct ada_softc *)periph->softc; 737 738 if (softc->state != ADA_STATE_NORMAL) 739 return; 740 741 /* Check if we have more work to do. */ 742 if (bioq_first(&softc->bio_queue) || 743 (!softc->trim_running && bioq_first(&softc->trim_queue))) { 744 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 745 } 746} 747 748/* 749 * Actually translate the requested transfer into one the physical driver 750 * can understand. The transfer is described by a buf and will include 751 * only one physical transfer. 752 */ 753static void 754adastrategy(struct bio *bp) 755{ 756 struct cam_periph *periph; 757 struct ada_softc *softc; 758 759 periph = (struct cam_periph *)bp->bio_disk->d_drv1; 760 softc = (struct ada_softc *)periph->softc; 761 762 cam_periph_lock(periph); 763 764 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("adastrategy(%p)\n", bp)); 765 766 /* 767 * If the device has been made invalid, error out 768 */ 769 if ((periph->flags & CAM_PERIPH_INVALID) != 0) { 770 cam_periph_unlock(periph); 771 biofinish(bp, NULL, ENXIO); 772 return; 773 } 774 775 /* 776 * Place it in the queue of disk activities for this disk 777 */ 778 if (bp->bio_cmd == BIO_DELETE) { 779 bioq_disksort(&softc->trim_queue, bp); 780 } else { 781 if (ADA_SIO) 782 bioq_disksort(&softc->bio_queue, bp); 783 else 784 bioq_insert_tail(&softc->bio_queue, bp); 785 } 786 787 /* 788 * Schedule ourselves for performing the work. 789 */ 790 adaschedule(periph); 791 cam_periph_unlock(periph); 792 793 return; 794} 795 796static int 797adadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length) 798{ 799 struct cam_periph *periph; 800 struct ada_softc *softc; 801 u_int secsize; 802 union ccb ccb; 803 struct disk *dp; 804 uint64_t lba; 805 uint16_t count; 806 int error = 0; 807 808 dp = arg; 809 periph = dp->d_drv1; 810 softc = (struct ada_softc *)periph->softc; 811 cam_periph_lock(periph); 812 secsize = softc->params.secsize; 813 lba = offset / secsize; 814 count = length / secsize; 815 816 if ((periph->flags & CAM_PERIPH_INVALID) != 0) { 817 cam_periph_unlock(periph); 818 return (ENXIO); 819 } 820 821 if (length > 0) { 822 xpt_setup_ccb(&ccb.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 823 ccb.ccb_h.ccb_state = ADA_CCB_DUMP; 824 cam_fill_ataio(&ccb.ataio, 825 0, 826 adadone, 827 CAM_DIR_OUT, 828 0, 829 (u_int8_t *) virtual, 830 length, 831 ada_default_timeout*1000); 832 if ((softc->flags & ADA_FLAG_CAN_48BIT) && 833 (lba + count >= ATA_MAX_28BIT_LBA || 834 count >= 256)) { 835 ata_48bit_cmd(&ccb.ataio, ATA_WRITE_DMA48, 836 0, lba, count); 837 } else { 838 ata_28bit_cmd(&ccb.ataio, ATA_WRITE_DMA, 839 0, lba, count); 840 } 841 xpt_polled_action(&ccb); 842 843 error = cam_periph_error(&ccb, 844 0, SF_NO_RECOVERY | SF_NO_RETRY, NULL); 845 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0) 846 cam_release_devq(ccb.ccb_h.path, /*relsim_flags*/0, 847 /*reduction*/0, /*timeout*/0, /*getcount_only*/0); 848 if (error != 0) 849 printf("Aborting dump due to I/O error.\n"); 850 851 cam_periph_unlock(periph); 852 return (error); 853 } 854 855 if (softc->flags & ADA_FLAG_CAN_FLUSHCACHE) { 856 xpt_setup_ccb(&ccb.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 857 858 ccb.ccb_h.ccb_state = ADA_CCB_DUMP; 859 cam_fill_ataio(&ccb.ataio, 860 0, 861 adadone, 862 CAM_DIR_NONE, 863 0, 864 NULL, 865 0, 866 ada_default_timeout*1000); 867 868 if (softc->flags & ADA_FLAG_CAN_48BIT) 869 ata_48bit_cmd(&ccb.ataio, ATA_FLUSHCACHE48, 0, 0, 0); 870 else 871 ata_28bit_cmd(&ccb.ataio, ATA_FLUSHCACHE, 0, 0, 0); 872 xpt_polled_action(&ccb); 873 874 error = cam_periph_error(&ccb, 875 0, SF_NO_RECOVERY | SF_NO_RETRY, NULL); 876 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0) 877 cam_release_devq(ccb.ccb_h.path, /*relsim_flags*/0, 878 /*reduction*/0, /*timeout*/0, /*getcount_only*/0); 879 if (error != 0) 880 xpt_print(periph->path, "Synchronize cache failed\n"); 881 } 882 cam_periph_unlock(periph); 883 return (error); 884} 885 886static void 887adainit(void) 888{ 889 cam_status status; 890 891 /* 892 * Install a global async callback. This callback will 893 * receive async callbacks like "new device found". 894 */ 895 status = xpt_register_async(AC_FOUND_DEVICE, adaasync, NULL, NULL); 896 897 if (status != CAM_REQ_CMP) { 898 printf("ada: Failed to attach master async callback " 899 "due to status 0x%x!\n", status); 900 } else if (ada_send_ordered) { 901 902 /* Register our event handlers */ 903 if ((EVENTHANDLER_REGISTER(power_suspend, adasuspend, 904 NULL, EVENTHANDLER_PRI_LAST)) == NULL) 905 printf("adainit: power event registration failed!\n"); 906 if ((EVENTHANDLER_REGISTER(power_resume, adaresume, 907 NULL, EVENTHANDLER_PRI_LAST)) == NULL) 908 printf("adainit: power event registration failed!\n"); 909 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, adashutdown, 910 NULL, SHUTDOWN_PRI_DEFAULT)) == NULL) 911 printf("adainit: shutdown event registration failed!\n"); 912 } 913} 914 915/* 916 * Callback from GEOM, called when it has finished cleaning up its 917 * resources. 918 */ 919static void 920adadiskgonecb(struct disk *dp) 921{ 922 struct cam_periph *periph; 923 924 periph = (struct cam_periph *)dp->d_drv1; 925 926 cam_periph_release(periph); 927} 928 929static void 930adaoninvalidate(struct cam_periph *periph) 931{ 932 struct ada_softc *softc; 933 934 softc = (struct ada_softc *)periph->softc; 935 936 /* 937 * De-register any async callbacks. 938 */ 939 xpt_register_async(0, adaasync, periph, periph->path); 940 941 /* 942 * Return all queued I/O with ENXIO. 943 * XXX Handle any transactions queued to the card 944 * with XPT_ABORT_CCB. 945 */ 946 bioq_flush(&softc->bio_queue, NULL, ENXIO); 947 bioq_flush(&softc->trim_queue, NULL, ENXIO); 948 949 disk_gone(softc->disk); 950} 951 952static void 953adacleanup(struct cam_periph *periph) 954{ 955 struct ada_softc *softc; 956 957 softc = (struct ada_softc *)periph->softc; 958 959 cam_periph_unlock(periph); 960 961 /* 962 * If we can't free the sysctl tree, oh well... 963 */ 964 if ((softc->flags & ADA_FLAG_SCTX_INIT) != 0 965 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) { 966 xpt_print(periph->path, "can't remove sysctl context\n"); 967 } 968 969 disk_destroy(softc->disk); 970 callout_drain(&softc->sendordered_c); 971 free(softc, M_DEVBUF); 972 cam_periph_lock(periph); 973} 974 975static void 976adaasync(void *callback_arg, u_int32_t code, 977 struct cam_path *path, void *arg) 978{ 979 struct ccb_getdev cgd; 980 struct cam_periph *periph; 981 struct ada_softc *softc; 982 983 periph = (struct cam_periph *)callback_arg; 984 switch (code) { 985 case AC_FOUND_DEVICE: 986 { 987 struct ccb_getdev *cgd; 988 cam_status status; 989 990 cgd = (struct ccb_getdev *)arg; 991 if (cgd == NULL) 992 break; 993 994 if (cgd->protocol != PROTO_ATA) 995 break; 996 997 /* 998 * Allocate a peripheral instance for 999 * this device and start the probe 1000 * process. 1001 */ 1002 status = cam_periph_alloc(adaregister, adaoninvalidate, 1003 adacleanup, adastart, 1004 "ada", CAM_PERIPH_BIO, 1005 path, adaasync, 1006 AC_FOUND_DEVICE, cgd); 1007 1008 if (status != CAM_REQ_CMP 1009 && status != CAM_REQ_INPROG) 1010 printf("adaasync: Unable to attach to new device " 1011 "due to status 0x%x\n", status); 1012 break; 1013 } 1014 case AC_GETDEV_CHANGED: 1015 { 1016 softc = (struct ada_softc *)periph->softc; 1017 xpt_setup_ccb(&cgd.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 1018 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1019 xpt_action((union ccb *)&cgd); 1020 1021 if ((cgd.ident_data.capabilities1 & ATA_SUPPORT_DMA) && 1022 (cgd.inq_flags & SID_DMA)) 1023 softc->flags |= ADA_FLAG_CAN_DMA; 1024 else 1025 softc->flags &= ~ADA_FLAG_CAN_DMA; 1026 if (cgd.ident_data.support.command2 & ATA_SUPPORT_ADDRESS48) { 1027 softc->flags |= ADA_FLAG_CAN_48BIT; 1028 if (cgd.inq_flags & SID_DMA48) 1029 softc->flags |= ADA_FLAG_CAN_DMA48; 1030 else 1031 softc->flags &= ~ADA_FLAG_CAN_DMA48; 1032 } else 1033 softc->flags &= ~(ADA_FLAG_CAN_48BIT | 1034 ADA_FLAG_CAN_DMA48); 1035 if ((cgd.ident_data.satacapabilities & ATA_SUPPORT_NCQ) && 1036 (cgd.inq_flags & SID_DMA) && (cgd.inq_flags & SID_CmdQue)) 1037 softc->flags |= ADA_FLAG_CAN_NCQ; 1038 else 1039 softc->flags &= ~ADA_FLAG_CAN_NCQ; 1040 if ((cgd.ident_data.support_dsm & ATA_SUPPORT_DSM_TRIM) && 1041 (cgd.inq_flags & SID_DMA)) 1042 softc->flags |= ADA_FLAG_CAN_TRIM; 1043 else 1044 softc->flags &= ~ADA_FLAG_CAN_TRIM; 1045 1046 cam_periph_async(periph, code, path, arg); 1047 break; 1048 } 1049 case AC_ADVINFO_CHANGED: 1050 { 1051 uintptr_t buftype; 1052 1053 buftype = (uintptr_t)arg; 1054 if (buftype == CDAI_TYPE_PHYS_PATH) { 1055 struct ada_softc *softc; 1056 1057 softc = periph->softc; 1058 disk_attr_changed(softc->disk, "GEOM::physpath", 1059 M_NOWAIT); 1060 } 1061 break; 1062 } 1063 case AC_SENT_BDR: 1064 case AC_BUS_RESET: 1065 { 1066 softc = (struct ada_softc *)periph->softc; 1067 cam_periph_async(periph, code, path, arg); 1068 if (softc->state != ADA_STATE_NORMAL) 1069 break; 1070 xpt_setup_ccb(&cgd.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 1071 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1072 xpt_action((union ccb *)&cgd); 1073 if (ADA_RA >= 0 && 1074 cgd.ident_data.support.command1 & ATA_SUPPORT_LOOKAHEAD) 1075 softc->state = ADA_STATE_RAHEAD; 1076 else if (ADA_WC >= 0 && 1077 cgd.ident_data.support.command1 & ATA_SUPPORT_WRITECACHE) 1078 softc->state = ADA_STATE_WCACHE; 1079 else 1080 break; 1081 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 1082 softc->state = ADA_STATE_NORMAL; 1083 else 1084 xpt_schedule(periph, CAM_PRIORITY_DEV); 1085 } 1086 default: 1087 cam_periph_async(periph, code, path, arg); 1088 break; 1089 } 1090} 1091 1092static void 1093adasysctlinit(void *context, int pending) 1094{ 1095 struct cam_periph *periph; 1096 struct ada_softc *softc; 1097 char tmpstr[80], tmpstr2[80]; 1098 1099 periph = (struct cam_periph *)context; 1100 1101 /* periph was held for us when this task was enqueued */ 1102 if ((periph->flags & CAM_PERIPH_INVALID) != 0) { 1103 cam_periph_release(periph); 1104 return; 1105 } 1106 1107 softc = (struct ada_softc *)periph->softc; 1108 snprintf(tmpstr, sizeof(tmpstr), "CAM ADA unit %d", periph->unit_number); 1109 snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number); 1110 1111 sysctl_ctx_init(&softc->sysctl_ctx); 1112 softc->flags |= ADA_FLAG_SCTX_INIT; 1113 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1114 SYSCTL_STATIC_CHILDREN(_kern_cam_ada), OID_AUTO, tmpstr2, 1115 CTLFLAG_RD, 0, tmpstr); 1116 if (softc->sysctl_tree == NULL) { 1117 printf("adasysctlinit: unable to allocate sysctl tree\n"); 1118 cam_periph_release(periph); 1119 return; 1120 } 1121 1122 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1123 OID_AUTO, "read_ahead", CTLFLAG_RW | CTLFLAG_MPSAFE, 1124 &softc->read_ahead, 0, "Enable disk read ahead."); 1125 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1126 OID_AUTO, "write_cache", CTLFLAG_RW | CTLFLAG_MPSAFE, 1127 &softc->write_cache, 0, "Enable disk write cache."); 1128 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1129 OID_AUTO, "sort_io_queue", CTLFLAG_RW | CTLFLAG_MPSAFE, 1130 &softc->sort_io_queue, 0, 1131 "Sort IO queue to try and optimise disk access patterns"); 1132#ifdef ADA_TEST_FAILURE 1133 /* 1134 * Add a 'door bell' sysctl which allows one to set it from userland 1135 * and cause something bad to happen. For the moment, we only allow 1136 * whacking the next read or write. 1137 */ 1138 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1139 OID_AUTO, "force_read_error", CTLFLAG_RW | CTLFLAG_MPSAFE, 1140 &softc->force_read_error, 0, 1141 "Force a read error for the next N reads."); 1142 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1143 OID_AUTO, "force_write_error", CTLFLAG_RW | CTLFLAG_MPSAFE, 1144 &softc->force_write_error, 0, 1145 "Force a write error for the next N writes."); 1146 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1147 OID_AUTO, "periodic_read_error", CTLFLAG_RW | CTLFLAG_MPSAFE, 1148 &softc->periodic_read_error, 0, 1149 "Force a read error every N reads (don't set too low)."); 1150#endif 1151 cam_periph_release(periph); 1152} 1153 1154static int 1155adagetattr(struct bio *bp) 1156{ 1157 int ret; 1158 struct cam_periph *periph; 1159 1160 periph = (struct cam_periph *)bp->bio_disk->d_drv1; 1161 cam_periph_lock(periph); 1162 ret = xpt_getattr(bp->bio_data, bp->bio_length, bp->bio_attribute, 1163 periph->path); 1164 cam_periph_unlock(periph); 1165 if (ret == 0) 1166 bp->bio_completed = bp->bio_length; 1167 return ret; 1168} 1169 1170static cam_status 1171adaregister(struct cam_periph *periph, void *arg) 1172{ 1173 struct ada_softc *softc; 1174 struct ccb_pathinq cpi; 1175 struct ccb_getdev *cgd; 1176 char announce_buf[80], buf1[32]; 1177 struct disk_params *dp; 1178 caddr_t match; 1179 u_int maxio; 1180 int legacy_id, quirks; 1181 1182 cgd = (struct ccb_getdev *)arg; 1183 if (cgd == NULL) { 1184 printf("adaregister: no getdev CCB, can't register device\n"); 1185 return(CAM_REQ_CMP_ERR); 1186 } 1187 1188 softc = (struct ada_softc *)malloc(sizeof(*softc), M_DEVBUF, 1189 M_NOWAIT|M_ZERO); 1190 1191 if (softc == NULL) { 1192 printf("adaregister: Unable to probe new device. " 1193 "Unable to allocate softc\n"); 1194 return(CAM_REQ_CMP_ERR); 1195 } 1196 1197 bioq_init(&softc->bio_queue); 1198 bioq_init(&softc->trim_queue); 1199 1200 if ((cgd->ident_data.capabilities1 & ATA_SUPPORT_DMA) && 1201 (cgd->inq_flags & SID_DMA)) 1202 softc->flags |= ADA_FLAG_CAN_DMA; 1203 if (cgd->ident_data.support.command2 & ATA_SUPPORT_ADDRESS48) { 1204 softc->flags |= ADA_FLAG_CAN_48BIT; 1205 if (cgd->inq_flags & SID_DMA48) 1206 softc->flags |= ADA_FLAG_CAN_DMA48; 1207 } 1208 if (cgd->ident_data.support.command2 & ATA_SUPPORT_FLUSHCACHE) 1209 softc->flags |= ADA_FLAG_CAN_FLUSHCACHE; 1210 if (cgd->ident_data.support.command1 & ATA_SUPPORT_POWERMGT) 1211 softc->flags |= ADA_FLAG_CAN_POWERMGT; 1212 if ((cgd->ident_data.satacapabilities & ATA_SUPPORT_NCQ) && 1213 (cgd->inq_flags & SID_DMA) && (cgd->inq_flags & SID_CmdQue)) 1214 softc->flags |= ADA_FLAG_CAN_NCQ; 1215 if ((cgd->ident_data.support_dsm & ATA_SUPPORT_DSM_TRIM) && 1216 (cgd->inq_flags & SID_DMA)) { 1217 softc->flags |= ADA_FLAG_CAN_TRIM; 1218 softc->trim_max_ranges = TRIM_MAX_RANGES; 1219 if (cgd->ident_data.max_dsm_blocks != 0) { 1220 softc->trim_max_ranges = 1221 min(cgd->ident_data.max_dsm_blocks * 1222 ATA_DSM_BLK_RANGES, softc->trim_max_ranges); 1223 } 1224 } 1225 if (cgd->ident_data.support.command2 & ATA_SUPPORT_CFA) 1226 softc->flags |= ADA_FLAG_CAN_CFA; 1227 1228 periph->softc = softc; 1229 1230 /* 1231 * See if this device has any quirks. 1232 */ 1233 match = cam_quirkmatch((caddr_t)&cgd->ident_data, 1234 (caddr_t)ada_quirk_table, 1235 sizeof(ada_quirk_table)/sizeof(*ada_quirk_table), 1236 sizeof(*ada_quirk_table), ata_identify_match); 1237 if (match != NULL) 1238 softc->quirks = ((struct ada_quirk_entry *)match)->quirks; 1239 else 1240 softc->quirks = ADA_Q_NONE; 1241 1242 bzero(&cpi, sizeof(cpi)); 1243 xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NONE); 1244 cpi.ccb_h.func_code = XPT_PATH_INQ; 1245 xpt_action((union ccb *)&cpi); 1246 1247 TASK_INIT(&softc->sysctl_task, 0, adasysctlinit, periph); 1248 1249 /* 1250 * Register this media as a disk 1251 */ 1252 (void)cam_periph_hold(periph, PRIBIO); 1253 cam_periph_unlock(periph); 1254 snprintf(announce_buf, sizeof(announce_buf), 1255 "kern.cam.ada.%d.quirks", periph->unit_number); 1256 quirks = softc->quirks; 1257 TUNABLE_INT_FETCH(announce_buf, &quirks); 1258 softc->quirks = quirks; 1259 softc->read_ahead = -1; 1260 snprintf(announce_buf, sizeof(announce_buf), 1261 "kern.cam.ada.%d.read_ahead", periph->unit_number); 1262 TUNABLE_INT_FETCH(announce_buf, &softc->read_ahead); 1263 softc->write_cache = -1; 1264 snprintf(announce_buf, sizeof(announce_buf), 1265 "kern.cam.ada.%d.write_cache", periph->unit_number); 1266 TUNABLE_INT_FETCH(announce_buf, &softc->write_cache); 1267 /* Disable queue sorting for non-rotational media by default. */ 1268 if (cgd->ident_data.media_rotation_rate == ATA_RATE_NON_ROTATING) 1269 softc->sort_io_queue = 0; 1270 else 1271 softc->sort_io_queue = -1; 1272 adagetparams(periph, cgd); 1273 softc->disk = disk_alloc(); 1274 softc->disk->d_rotation_rate = cgd->ident_data.media_rotation_rate; 1275 softc->disk->d_devstat = devstat_new_entry(periph->periph_name, 1276 periph->unit_number, softc->params.secsize, 1277 DEVSTAT_ALL_SUPPORTED, 1278 DEVSTAT_TYPE_DIRECT | 1279 XPORT_DEVSTAT_TYPE(cpi.transport), 1280 DEVSTAT_PRIORITY_DISK); 1281 softc->disk->d_open = adaopen; 1282 softc->disk->d_close = adaclose; 1283 softc->disk->d_strategy = adastrategy; 1284 softc->disk->d_getattr = adagetattr; 1285 softc->disk->d_dump = adadump; 1286 softc->disk->d_gone = adadiskgonecb; 1287 softc->disk->d_name = "ada"; 1288 softc->disk->d_drv1 = periph; 1289 maxio = cpi.maxio; /* Honor max I/O size of SIM */ 1290 if (maxio == 0) 1291 maxio = DFLTPHYS; /* traditional default */ 1292 else if (maxio > MAXPHYS) 1293 maxio = MAXPHYS; /* for safety */ 1294 if (softc->flags & ADA_FLAG_CAN_48BIT) 1295 maxio = min(maxio, 65536 * softc->params.secsize); 1296 else /* 28bit ATA command limit */ 1297 maxio = min(maxio, 256 * softc->params.secsize); 1298 softc->disk->d_maxsize = maxio; 1299 softc->disk->d_unit = periph->unit_number; 1300 softc->disk->d_flags = DISKFLAG_DIRECT_COMPLETION; 1301 if (softc->flags & ADA_FLAG_CAN_FLUSHCACHE) 1302 softc->disk->d_flags |= DISKFLAG_CANFLUSHCACHE; 1303 if (softc->flags & ADA_FLAG_CAN_TRIM) { 1304 softc->disk->d_flags |= DISKFLAG_CANDELETE; 1305 softc->disk->d_delmaxsize = softc->params.secsize * 1306 ATA_DSM_RANGE_MAX * 1307 softc->trim_max_ranges; 1308 } else if ((softc->flags & ADA_FLAG_CAN_CFA) && 1309 !(softc->flags & ADA_FLAG_CAN_48BIT)) { 1310 softc->disk->d_flags |= DISKFLAG_CANDELETE; 1311 softc->disk->d_delmaxsize = 256 * softc->params.secsize; 1312 } else 1313 softc->disk->d_delmaxsize = maxio; 1314 if ((cpi.hba_misc & PIM_UNMAPPED) != 0) 1315 softc->disk->d_flags |= DISKFLAG_UNMAPPED_BIO; 1316 strlcpy(softc->disk->d_descr, cgd->ident_data.model, 1317 MIN(sizeof(softc->disk->d_descr), sizeof(cgd->ident_data.model))); 1318 strlcpy(softc->disk->d_ident, cgd->ident_data.serial, 1319 MIN(sizeof(softc->disk->d_ident), sizeof(cgd->ident_data.serial))); 1320 softc->disk->d_hba_vendor = cpi.hba_vendor; 1321 softc->disk->d_hba_device = cpi.hba_device; 1322 softc->disk->d_hba_subvendor = cpi.hba_subvendor; 1323 softc->disk->d_hba_subdevice = cpi.hba_subdevice; 1324 1325 softc->disk->d_sectorsize = softc->params.secsize; 1326 softc->disk->d_mediasize = (off_t)softc->params.sectors * 1327 softc->params.secsize; 1328 if (ata_physical_sector_size(&cgd->ident_data) != 1329 softc->params.secsize) { 1330 softc->disk->d_stripesize = 1331 ata_physical_sector_size(&cgd->ident_data); 1332 softc->disk->d_stripeoffset = (softc->disk->d_stripesize - 1333 ata_logical_sector_offset(&cgd->ident_data)) % 1334 softc->disk->d_stripesize; 1335 } else if (softc->quirks & ADA_Q_4K) { 1336 softc->disk->d_stripesize = 4096; 1337 softc->disk->d_stripeoffset = 0; 1338 } 1339 softc->disk->d_fwsectors = softc->params.secs_per_track; 1340 softc->disk->d_fwheads = softc->params.heads; 1341 ata_disk_firmware_geom_adjust(softc->disk); 1342 1343 if (ada_legacy_aliases) { 1344#ifdef ATA_STATIC_ID 1345 legacy_id = xpt_path_legacy_ata_id(periph->path); 1346#else 1347 legacy_id = softc->disk->d_unit; 1348#endif 1349 if (legacy_id >= 0) { 1350 snprintf(announce_buf, sizeof(announce_buf), 1351 "kern.devalias.%s%d", 1352 softc->disk->d_name, softc->disk->d_unit); 1353 snprintf(buf1, sizeof(buf1), 1354 "ad%d", legacy_id); 1355 setenv(announce_buf, buf1); 1356 } 1357 } else 1358 legacy_id = -1; 1359 /* 1360 * Acquire a reference to the periph before we register with GEOM. 1361 * We'll release this reference once GEOM calls us back (via 1362 * adadiskgonecb()) telling us that our provider has been freed. 1363 */ 1364 if (cam_periph_acquire(periph) != CAM_REQ_CMP) { 1365 xpt_print(periph->path, "%s: lost periph during " 1366 "registration!\n", __func__); 1367 cam_periph_lock(periph); 1368 return (CAM_REQ_CMP_ERR); 1369 } 1370 disk_create(softc->disk, DISK_VERSION); 1371 cam_periph_lock(periph); 1372 cam_periph_unhold(periph); 1373 1374 dp = &softc->params; 1375 snprintf(announce_buf, sizeof(announce_buf), 1376 "%juMB (%ju %u byte sectors)", 1377 ((uintmax_t)dp->secsize * dp->sectors) / (1024 * 1024), 1378 (uintmax_t)dp->sectors, dp->secsize); 1379 xpt_announce_periph(periph, announce_buf); 1380 xpt_announce_quirks(periph, softc->quirks, ADA_Q_BIT_STRING); 1381 if (legacy_id >= 0) 1382 printf("%s%d: Previously was known as ad%d\n", 1383 periph->periph_name, periph->unit_number, legacy_id); 1384 1385 /* 1386 * Create our sysctl variables, now that we know 1387 * we have successfully attached. 1388 */ 1389 if (cam_periph_acquire(periph) == CAM_REQ_CMP) 1390 taskqueue_enqueue(taskqueue_thread, &softc->sysctl_task); 1391 1392 /* 1393 * Add async callbacks for bus reset and 1394 * bus device reset calls. I don't bother 1395 * checking if this fails as, in most cases, 1396 * the system will function just fine without 1397 * them and the only alternative would be to 1398 * not attach the device on failure. 1399 */ 1400 xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE | 1401 AC_GETDEV_CHANGED | AC_ADVINFO_CHANGED, 1402 adaasync, periph, periph->path); 1403 1404 /* 1405 * Schedule a periodic event to occasionally send an 1406 * ordered tag to a device. 1407 */ 1408 callout_init_mtx(&softc->sendordered_c, cam_periph_mtx(periph), 0); 1409 callout_reset(&softc->sendordered_c, 1410 (ada_default_timeout * hz) / ADA_ORDEREDTAG_INTERVAL, 1411 adasendorderedtag, softc); 1412 1413 if (ADA_RA >= 0 && 1414 cgd->ident_data.support.command1 & ATA_SUPPORT_LOOKAHEAD) { 1415 softc->state = ADA_STATE_RAHEAD; 1416 } else if (ADA_WC >= 0 && 1417 cgd->ident_data.support.command1 & ATA_SUPPORT_WRITECACHE) { 1418 softc->state = ADA_STATE_WCACHE; 1419 } else { 1420 softc->state = ADA_STATE_NORMAL; 1421 return(CAM_REQ_CMP); 1422 } 1423 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 1424 softc->state = ADA_STATE_NORMAL; 1425 else 1426 xpt_schedule(periph, CAM_PRIORITY_DEV); 1427 return(CAM_REQ_CMP); 1428} 1429 1430static void 1431ada_dsmtrim(struct ada_softc *softc, struct bio *bp, struct ccb_ataio *ataio) 1432{ 1433 struct trim_request *req = &softc->trim_req; 1434 uint64_t lastlba = (uint64_t)-1; 1435 int c, lastcount = 0, off, ranges = 0; 1436 1437 bzero(req, sizeof(*req)); 1438 TAILQ_INIT(&req->bps); 1439 do { 1440 uint64_t lba = bp->bio_pblkno; 1441 int count = bp->bio_bcount / softc->params.secsize; 1442 1443 bioq_remove(&softc->trim_queue, bp); 1444 1445 /* Try to extend the previous range. */ 1446 if (lba == lastlba) { 1447 c = min(count, ATA_DSM_RANGE_MAX - lastcount); 1448 lastcount += c; 1449 off = (ranges - 1) * ATA_DSM_RANGE_SIZE; 1450 req->data[off + 6] = lastcount & 0xff; 1451 req->data[off + 7] = 1452 (lastcount >> 8) & 0xff; 1453 count -= c; 1454 lba += c; 1455 } 1456 1457 while (count > 0) { 1458 c = min(count, ATA_DSM_RANGE_MAX); 1459 off = ranges * ATA_DSM_RANGE_SIZE; 1460 req->data[off + 0] = lba & 0xff; 1461 req->data[off + 1] = (lba >> 8) & 0xff; 1462 req->data[off + 2] = (lba >> 16) & 0xff; 1463 req->data[off + 3] = (lba >> 24) & 0xff; 1464 req->data[off + 4] = (lba >> 32) & 0xff; 1465 req->data[off + 5] = (lba >> 40) & 0xff; 1466 req->data[off + 6] = c & 0xff; 1467 req->data[off + 7] = (c >> 8) & 0xff; 1468 lba += c; 1469 count -= c; 1470 lastcount = c; 1471 ranges++; 1472 /* 1473 * Its the caller's responsibility to ensure the 1474 * request will fit so we don't need to check for 1475 * overrun here 1476 */ 1477 } 1478 lastlba = lba; 1479 TAILQ_INSERT_TAIL(&req->bps, bp, bio_queue); 1480 bp = bioq_first(&softc->trim_queue); 1481 if (bp == NULL || 1482 bp->bio_bcount / softc->params.secsize > 1483 (softc->trim_max_ranges - ranges) * ATA_DSM_RANGE_MAX) 1484 break; 1485 } while (1); 1486 cam_fill_ataio(ataio, 1487 ada_retry_count, 1488 adadone, 1489 CAM_DIR_OUT, 1490 0, 1491 req->data, 1492 ((ranges + ATA_DSM_BLK_RANGES - 1) / 1493 ATA_DSM_BLK_RANGES) * ATA_DSM_BLK_SIZE, 1494 ada_default_timeout * 1000); 1495 ata_48bit_cmd(ataio, ATA_DATA_SET_MANAGEMENT, 1496 ATA_DSM_TRIM, 0, (ranges + ATA_DSM_BLK_RANGES - 1497 1) / ATA_DSM_BLK_RANGES); 1498} 1499 1500static void 1501ada_cfaerase(struct ada_softc *softc, struct bio *bp, struct ccb_ataio *ataio) 1502{ 1503 struct trim_request *req = &softc->trim_req; 1504 uint64_t lba = bp->bio_pblkno; 1505 uint16_t count = bp->bio_bcount / softc->params.secsize; 1506 1507 bzero(req, sizeof(*req)); 1508 TAILQ_INIT(&req->bps); 1509 bioq_remove(&softc->trim_queue, bp); 1510 TAILQ_INSERT_TAIL(&req->bps, bp, bio_queue); 1511 1512 cam_fill_ataio(ataio, 1513 ada_retry_count, 1514 adadone, 1515 CAM_DIR_NONE, 1516 0, 1517 NULL, 1518 0, 1519 ada_default_timeout*1000); 1520 1521 if (count >= 256) 1522 count = 0; 1523 ata_28bit_cmd(ataio, ATA_CFA_ERASE, 0, lba, count); 1524} 1525 1526static void 1527adastart(struct cam_periph *periph, union ccb *start_ccb) 1528{ 1529 struct ada_softc *softc = (struct ada_softc *)periph->softc; 1530 struct ccb_ataio *ataio = &start_ccb->ataio; 1531 1532 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("adastart\n")); 1533 1534 switch (softc->state) { 1535 case ADA_STATE_NORMAL: 1536 { 1537 struct bio *bp; 1538 u_int8_t tag_code; 1539 1540 /* Run TRIM if not running yet. */ 1541 if (!softc->trim_running && 1542 (bp = bioq_first(&softc->trim_queue)) != 0) { 1543 if (softc->flags & ADA_FLAG_CAN_TRIM) { 1544 ada_dsmtrim(softc, bp, ataio); 1545 } else if ((softc->flags & ADA_FLAG_CAN_CFA) && 1546 !(softc->flags & ADA_FLAG_CAN_48BIT)) { 1547 ada_cfaerase(softc, bp, ataio); 1548 } else { 1549 /* This can happen if DMA was disabled. */ 1550 bioq_remove(&softc->trim_queue, bp); 1551 biofinish(bp, NULL, EOPNOTSUPP); 1552 xpt_release_ccb(start_ccb); 1553 adaschedule(periph); 1554 return; 1555 } 1556 softc->trim_running = 1; 1557 start_ccb->ccb_h.ccb_state = ADA_CCB_TRIM; 1558 start_ccb->ccb_h.flags |= CAM_UNLOCKED; 1559 goto out; 1560 } 1561 /* Run regular command. */ 1562 bp = bioq_first(&softc->bio_queue); 1563 if (bp == NULL) { 1564 xpt_release_ccb(start_ccb); 1565 break; 1566 } 1567 bioq_remove(&softc->bio_queue, bp); 1568 1569 if ((bp->bio_flags & BIO_ORDERED) != 0 1570 || (softc->flags & ADA_FLAG_NEED_OTAG) != 0) { 1571 softc->flags &= ~ADA_FLAG_NEED_OTAG; 1572 softc->flags |= ADA_FLAG_WAS_OTAG; 1573 tag_code = 0; 1574 } else { 1575 tag_code = 1; 1576 } 1577 switch (bp->bio_cmd) { 1578 case BIO_WRITE: 1579 case BIO_READ: 1580 { 1581 uint64_t lba = bp->bio_pblkno; 1582 uint16_t count = bp->bio_bcount / softc->params.secsize; 1583 void *data_ptr; 1584 int rw_op; 1585 1586 if (bp->bio_cmd == BIO_WRITE) { 1587 softc->flags |= ADA_FLAG_DIRTY; 1588 rw_op = CAM_DIR_OUT; 1589 } else { 1590 rw_op = CAM_DIR_IN; 1591 } 1592 1593 data_ptr = bp->bio_data; 1594 if ((bp->bio_flags & (BIO_UNMAPPED|BIO_VLIST)) != 0) { 1595 rw_op |= CAM_DATA_BIO; 1596 data_ptr = bp; 1597 } 1598 1599#ifdef ADA_TEST_FAILURE 1600 int fail = 0; 1601 1602 /* 1603 * Support the failure ioctls. If the command is a 1604 * read, and there are pending forced read errors, or 1605 * if a write and pending write errors, then fail this 1606 * operation with EIO. This is useful for testing 1607 * purposes. Also, support having every Nth read fail. 1608 * 1609 * This is a rather blunt tool. 1610 */ 1611 if (bp->bio_cmd == BIO_READ) { 1612 if (softc->force_read_error) { 1613 softc->force_read_error--; 1614 fail = 1; 1615 } 1616 if (softc->periodic_read_error > 0) { 1617 if (++softc->periodic_read_count >= 1618 softc->periodic_read_error) { 1619 softc->periodic_read_count = 0; 1620 fail = 1; 1621 } 1622 } 1623 } else { 1624 if (softc->force_write_error) { 1625 softc->force_write_error--; 1626 fail = 1; 1627 } 1628 } 1629 if (fail) { 1630 biofinish(bp, NULL, EIO); 1631 xpt_release_ccb(start_ccb); 1632 adaschedule(periph); 1633 return; 1634 } 1635#endif 1636 KASSERT((bp->bio_flags & BIO_UNMAPPED) == 0 || 1637 round_page(bp->bio_bcount + bp->bio_ma_offset) / 1638 PAGE_SIZE == bp->bio_ma_n, 1639 ("Short bio %p", bp)); 1640 cam_fill_ataio(ataio, 1641 ada_retry_count, 1642 adadone, 1643 rw_op, 1644 tag_code, 1645 data_ptr, 1646 bp->bio_bcount, 1647 ada_default_timeout*1000); 1648 1649 if ((softc->flags & ADA_FLAG_CAN_NCQ) && tag_code) { 1650 if (bp->bio_cmd == BIO_READ) { 1651 ata_ncq_cmd(ataio, ATA_READ_FPDMA_QUEUED, 1652 lba, count); 1653 } else { 1654 ata_ncq_cmd(ataio, ATA_WRITE_FPDMA_QUEUED, 1655 lba, count); 1656 } 1657 } else if ((softc->flags & ADA_FLAG_CAN_48BIT) && 1658 (lba + count >= ATA_MAX_28BIT_LBA || 1659 count > 256)) { 1660 if (softc->flags & ADA_FLAG_CAN_DMA48) { 1661 if (bp->bio_cmd == BIO_READ) { 1662 ata_48bit_cmd(ataio, ATA_READ_DMA48, 1663 0, lba, count); 1664 } else { 1665 ata_48bit_cmd(ataio, ATA_WRITE_DMA48, 1666 0, lba, count); 1667 } 1668 } else { 1669 if (bp->bio_cmd == BIO_READ) { 1670 ata_48bit_cmd(ataio, ATA_READ_MUL48, 1671 0, lba, count); 1672 } else { 1673 ata_48bit_cmd(ataio, ATA_WRITE_MUL48, 1674 0, lba, count); 1675 } 1676 } 1677 } else { 1678 if (count == 256) 1679 count = 0; 1680 if (softc->flags & ADA_FLAG_CAN_DMA) { 1681 if (bp->bio_cmd == BIO_READ) { 1682 ata_28bit_cmd(ataio, ATA_READ_DMA, 1683 0, lba, count); 1684 } else { 1685 ata_28bit_cmd(ataio, ATA_WRITE_DMA, 1686 0, lba, count); 1687 } 1688 } else { 1689 if (bp->bio_cmd == BIO_READ) { 1690 ata_28bit_cmd(ataio, ATA_READ_MUL, 1691 0, lba, count); 1692 } else { 1693 ata_28bit_cmd(ataio, ATA_WRITE_MUL, 1694 0, lba, count); 1695 } 1696 } 1697 } 1698 break; 1699 } 1700 case BIO_FLUSH: 1701 cam_fill_ataio(ataio, 1702 1, 1703 adadone, 1704 CAM_DIR_NONE, 1705 0, 1706 NULL, 1707 0, 1708 ada_default_timeout*1000); 1709 1710 if (softc->flags & ADA_FLAG_CAN_48BIT) 1711 ata_48bit_cmd(ataio, ATA_FLUSHCACHE48, 0, 0, 0); 1712 else 1713 ata_28bit_cmd(ataio, ATA_FLUSHCACHE, 0, 0, 0); 1714 break; 1715 } 1716 start_ccb->ccb_h.ccb_state = ADA_CCB_BUFFER_IO; 1717 start_ccb->ccb_h.flags |= CAM_UNLOCKED; 1718out: 1719 start_ccb->ccb_h.ccb_bp = bp; 1720 softc->outstanding_cmds++; 1721 softc->refcount++; 1722 cam_periph_unlock(periph); 1723 xpt_action(start_ccb); 1724 cam_periph_lock(periph); 1725 softc->refcount--; 1726 1727 /* May have more work to do, so ensure we stay scheduled */ 1728 adaschedule(periph); 1729 break; 1730 } 1731 case ADA_STATE_RAHEAD: 1732 case ADA_STATE_WCACHE: 1733 { 1734 cam_fill_ataio(ataio, 1735 1, 1736 adadone, 1737 CAM_DIR_NONE, 1738 0, 1739 NULL, 1740 0, 1741 ada_default_timeout*1000); 1742 1743 if (softc->state == ADA_STATE_RAHEAD) { 1744 ata_28bit_cmd(ataio, ATA_SETFEATURES, ADA_RA ? 1745 ATA_SF_ENAB_RCACHE : ATA_SF_DIS_RCACHE, 0, 0); 1746 start_ccb->ccb_h.ccb_state = ADA_CCB_RAHEAD; 1747 } else { 1748 ata_28bit_cmd(ataio, ATA_SETFEATURES, ADA_WC ? 1749 ATA_SF_ENAB_WCACHE : ATA_SF_DIS_WCACHE, 0, 0); 1750 start_ccb->ccb_h.ccb_state = ADA_CCB_WCACHE; 1751 } 1752 start_ccb->ccb_h.flags |= CAM_DEV_QFREEZE; 1753 xpt_action(start_ccb); 1754 break; 1755 } 1756 } 1757} 1758 1759static void 1760adadone(struct cam_periph *periph, union ccb *done_ccb) 1761{ 1762 struct ada_softc *softc; 1763 struct ccb_ataio *ataio; 1764 struct ccb_getdev *cgd; 1765 struct cam_path *path; 1766 int state; 1767 1768 softc = (struct ada_softc *)periph->softc; 1769 ataio = &done_ccb->ataio; 1770 path = done_ccb->ccb_h.path; 1771 1772 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("adadone\n")); 1773 1774 state = ataio->ccb_h.ccb_state & ADA_CCB_TYPE_MASK; 1775 switch (state) { 1776 case ADA_CCB_BUFFER_IO: 1777 case ADA_CCB_TRIM: 1778 { 1779 struct bio *bp; 1780 int error; 1781 1782 cam_periph_lock(periph); 1783 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1784 error = adaerror(done_ccb, 0, 0); 1785 if (error == ERESTART) { 1786 /* A retry was scheduled, so just return. */ 1787 cam_periph_unlock(periph); 1788 return; 1789 } 1790 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1791 cam_release_devq(path, 1792 /*relsim_flags*/0, 1793 /*reduction*/0, 1794 /*timeout*/0, 1795 /*getcount_only*/0); 1796 } else { 1797 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1798 panic("REQ_CMP with QFRZN"); 1799 error = 0; 1800 } 1801 bp = (struct bio *)done_ccb->ccb_h.ccb_bp; 1802 bp->bio_error = error; 1803 if (error != 0) { 1804 bp->bio_resid = bp->bio_bcount; 1805 bp->bio_flags |= BIO_ERROR; 1806 } else { 1807 if (state == ADA_CCB_TRIM) 1808 bp->bio_resid = 0; 1809 else 1810 bp->bio_resid = ataio->resid; 1811 if (bp->bio_resid > 0) 1812 bp->bio_flags |= BIO_ERROR; 1813 } 1814 softc->outstanding_cmds--; 1815 if (softc->outstanding_cmds == 0) 1816 softc->flags |= ADA_FLAG_WAS_OTAG; 1817 xpt_release_ccb(done_ccb); 1818 if (state == ADA_CCB_TRIM) { 1819 TAILQ_HEAD(, bio) queue; 1820 struct bio *bp1; 1821 1822 TAILQ_INIT(&queue); 1823 TAILQ_CONCAT(&queue, &softc->trim_req.bps, bio_queue); 1824 /* 1825 * Normally, the xpt_release_ccb() above would make sure 1826 * that when we have more work to do, that work would 1827 * get kicked off. However, we specifically keep 1828 * trim_running set to 0 before the call above to allow 1829 * other I/O to progress when many BIO_DELETE requests 1830 * are pushed down. We set trim_running to 0 and call 1831 * daschedule again so that we don't stall if there are 1832 * no other I/Os pending apart from BIO_DELETEs. 1833 */ 1834 softc->trim_running = 0; 1835 adaschedule(periph); 1836 cam_periph_unlock(periph); 1837 while ((bp1 = TAILQ_FIRST(&queue)) != NULL) { 1838 TAILQ_REMOVE(&queue, bp1, bio_queue); 1839 bp1->bio_error = error; 1840 if (error != 0) { 1841 bp1->bio_flags |= BIO_ERROR; 1842 bp1->bio_resid = bp1->bio_bcount; 1843 } else 1844 bp1->bio_resid = 0; 1845 biodone(bp1); 1846 } 1847 } else { 1848 cam_periph_unlock(periph); 1849 biodone(bp); 1850 } 1851 return; 1852 } 1853 case ADA_CCB_RAHEAD: 1854 { 1855 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1856 if (adaerror(done_ccb, 0, 0) == ERESTART) { 1857out: 1858 /* Drop freeze taken due to CAM_DEV_QFREEZE */ 1859 cam_release_devq(path, 0, 0, 0, FALSE); 1860 return; 1861 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1862 cam_release_devq(path, 1863 /*relsim_flags*/0, 1864 /*reduction*/0, 1865 /*timeout*/0, 1866 /*getcount_only*/0); 1867 } 1868 } 1869 1870 /* 1871 * Since our peripheral may be invalidated by an error 1872 * above or an external event, we must release our CCB 1873 * before releasing the reference on the peripheral. 1874 * The peripheral will only go away once the last reference 1875 * is removed, and we need it around for the CCB release 1876 * operation. 1877 */ 1878 cgd = (struct ccb_getdev *)done_ccb; 1879 xpt_setup_ccb(&cgd->ccb_h, path, CAM_PRIORITY_NORMAL); 1880 cgd->ccb_h.func_code = XPT_GDEV_TYPE; 1881 xpt_action((union ccb *)cgd); 1882 if (ADA_WC >= 0 && 1883 cgd->ident_data.support.command1 & ATA_SUPPORT_WRITECACHE) { 1884 softc->state = ADA_STATE_WCACHE; 1885 xpt_release_ccb(done_ccb); 1886 xpt_schedule(periph, CAM_PRIORITY_DEV); 1887 goto out; 1888 } 1889 softc->state = ADA_STATE_NORMAL; 1890 xpt_release_ccb(done_ccb); 1891 /* Drop freeze taken due to CAM_DEV_QFREEZE */ 1892 cam_release_devq(path, 0, 0, 0, FALSE); 1893 adaschedule(periph); 1894 cam_periph_release_locked(periph); 1895 return; 1896 } 1897 case ADA_CCB_WCACHE: 1898 { 1899 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1900 if (adaerror(done_ccb, 0, 0) == ERESTART) { 1901 goto out; 1902 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1903 cam_release_devq(path, 1904 /*relsim_flags*/0, 1905 /*reduction*/0, 1906 /*timeout*/0, 1907 /*getcount_only*/0); 1908 } 1909 } 1910 1911 softc->state = ADA_STATE_NORMAL; 1912 /* 1913 * Since our peripheral may be invalidated by an error 1914 * above or an external event, we must release our CCB 1915 * before releasing the reference on the peripheral. 1916 * The peripheral will only go away once the last reference 1917 * is removed, and we need it around for the CCB release 1918 * operation. 1919 */ 1920 xpt_release_ccb(done_ccb); 1921 /* Drop freeze taken due to CAM_DEV_QFREEZE */ 1922 cam_release_devq(path, 0, 0, 0, FALSE); 1923 adaschedule(periph); 1924 cam_periph_release_locked(periph); 1925 return; 1926 } 1927 case ADA_CCB_DUMP: 1928 /* No-op. We're polling */ 1929 return; 1930 default: 1931 break; 1932 } 1933 xpt_release_ccb(done_ccb); 1934} 1935 1936static int 1937adaerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 1938{ 1939 1940 return(cam_periph_error(ccb, cam_flags, sense_flags, NULL)); 1941} 1942 1943static void 1944adagetparams(struct cam_periph *periph, struct ccb_getdev *cgd) 1945{ 1946 struct ada_softc *softc = (struct ada_softc *)periph->softc; 1947 struct disk_params *dp = &softc->params; 1948 u_int64_t lbasize48; 1949 u_int32_t lbasize; 1950 1951 dp->secsize = ata_logical_sector_size(&cgd->ident_data); 1952 if ((cgd->ident_data.atavalid & ATA_FLAG_54_58) && 1953 cgd->ident_data.current_heads && cgd->ident_data.current_sectors) { 1954 dp->heads = cgd->ident_data.current_heads; 1955 dp->secs_per_track = cgd->ident_data.current_sectors; 1956 dp->cylinders = cgd->ident_data.cylinders; 1957 dp->sectors = (u_int32_t)cgd->ident_data.current_size_1 | 1958 ((u_int32_t)cgd->ident_data.current_size_2 << 16); 1959 } else { 1960 dp->heads = cgd->ident_data.heads; 1961 dp->secs_per_track = cgd->ident_data.sectors; 1962 dp->cylinders = cgd->ident_data.cylinders; 1963 dp->sectors = cgd->ident_data.cylinders * dp->heads * dp->secs_per_track; 1964 } 1965 lbasize = (u_int32_t)cgd->ident_data.lba_size_1 | 1966 ((u_int32_t)cgd->ident_data.lba_size_2 << 16); 1967 1968 /* use the 28bit LBA size if valid or bigger than the CHS mapping */ 1969 if (cgd->ident_data.cylinders == 16383 || dp->sectors < lbasize) 1970 dp->sectors = lbasize; 1971 1972 /* use the 48bit LBA size if valid */ 1973 lbasize48 = ((u_int64_t)cgd->ident_data.lba_size48_1) | 1974 ((u_int64_t)cgd->ident_data.lba_size48_2 << 16) | 1975 ((u_int64_t)cgd->ident_data.lba_size48_3 << 32) | 1976 ((u_int64_t)cgd->ident_data.lba_size48_4 << 48); 1977 if ((cgd->ident_data.support.command2 & ATA_SUPPORT_ADDRESS48) && 1978 lbasize48 > ATA_MAX_28BIT_LBA) 1979 dp->sectors = lbasize48; 1980} 1981 1982static void 1983adasendorderedtag(void *arg) 1984{ 1985 struct ada_softc *softc = arg; 1986 1987 if (ada_send_ordered) { 1988 if (softc->outstanding_cmds > 0) { 1989 if ((softc->flags & ADA_FLAG_WAS_OTAG) == 0) 1990 softc->flags |= ADA_FLAG_NEED_OTAG; 1991 softc->flags &= ~ADA_FLAG_WAS_OTAG; 1992 } 1993 } 1994 /* Queue us up again */ 1995 callout_reset(&softc->sendordered_c, 1996 (ada_default_timeout * hz) / ADA_ORDEREDTAG_INTERVAL, 1997 adasendorderedtag, softc); 1998} 1999 2000/* 2001 * Step through all ADA peripheral drivers, and if the device is still open, 2002 * sync the disk cache to physical media. 2003 */ 2004static void 2005adaflush(void) 2006{ 2007 struct cam_periph *periph; 2008 struct ada_softc *softc; 2009 union ccb *ccb; 2010 int error; 2011 2012 CAM_PERIPH_FOREACH(periph, &adadriver) { 2013 softc = (struct ada_softc *)periph->softc; 2014 if (SCHEDULER_STOPPED()) { 2015 /* If we paniced with the lock held, do not recurse. */ 2016 if (!cam_periph_owned(periph) && 2017 (softc->flags & ADA_FLAG_OPEN)) { 2018 adadump(softc->disk, NULL, 0, 0, 0); 2019 } 2020 continue; 2021 } 2022 cam_periph_lock(periph); 2023 /* 2024 * We only sync the cache if the drive is still open, and 2025 * if the drive is capable of it.. 2026 */ 2027 if (((softc->flags & ADA_FLAG_OPEN) == 0) || 2028 (softc->flags & ADA_FLAG_CAN_FLUSHCACHE) == 0) { 2029 cam_periph_unlock(periph); 2030 continue; 2031 } 2032 2033 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL); 2034 cam_fill_ataio(&ccb->ataio, 2035 0, 2036 adadone, 2037 CAM_DIR_NONE, 2038 0, 2039 NULL, 2040 0, 2041 ada_default_timeout*1000); 2042 if (softc->flags & ADA_FLAG_CAN_48BIT) 2043 ata_48bit_cmd(&ccb->ataio, ATA_FLUSHCACHE48, 0, 0, 0); 2044 else 2045 ata_28bit_cmd(&ccb->ataio, ATA_FLUSHCACHE, 0, 0, 0); 2046 2047 error = cam_periph_runccb(ccb, adaerror, /*cam_flags*/0, 2048 /*sense_flags*/ SF_NO_RECOVERY | SF_NO_RETRY, 2049 softc->disk->d_devstat); 2050 if (error != 0) 2051 xpt_print(periph->path, "Synchronize cache failed\n"); 2052 xpt_release_ccb(ccb); 2053 cam_periph_unlock(periph); 2054 } 2055} 2056 2057static void 2058adaspindown(uint8_t cmd, int flags) 2059{ 2060 struct cam_periph *periph; 2061 struct ada_softc *softc; 2062 union ccb *ccb; 2063 int error; 2064 2065 CAM_PERIPH_FOREACH(periph, &adadriver) { 2066 /* If we paniced with lock held - not recurse here. */ 2067 if (cam_periph_owned(periph)) 2068 continue; 2069 cam_periph_lock(periph); 2070 softc = (struct ada_softc *)periph->softc; 2071 /* 2072 * We only spin-down the drive if it is capable of it.. 2073 */ 2074 if ((softc->flags & ADA_FLAG_CAN_POWERMGT) == 0) { 2075 cam_periph_unlock(periph); 2076 continue; 2077 } 2078 2079 if (bootverbose) 2080 xpt_print(periph->path, "spin-down\n"); 2081 2082 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL); 2083 cam_fill_ataio(&ccb->ataio, 2084 0, 2085 adadone, 2086 CAM_DIR_NONE | flags, 2087 0, 2088 NULL, 2089 0, 2090 ada_default_timeout*1000); 2091 ata_28bit_cmd(&ccb->ataio, cmd, 0, 0, 0); 2092 2093 error = cam_periph_runccb(ccb, adaerror, /*cam_flags*/0, 2094 /*sense_flags*/ SF_NO_RECOVERY | SF_NO_RETRY, 2095 softc->disk->d_devstat); 2096 if (error != 0) 2097 xpt_print(periph->path, "Spin-down disk failed\n"); 2098 xpt_release_ccb(ccb); 2099 cam_periph_unlock(periph); 2100 } 2101} 2102 2103static void 2104adashutdown(void *arg, int howto) 2105{ 2106 2107 adaflush(); 2108 if (ada_spindown_shutdown != 0 && 2109 (howto & (RB_HALT | RB_POWEROFF)) != 0) 2110 adaspindown(ATA_STANDBY_IMMEDIATE, 0); 2111} 2112 2113static void 2114adasuspend(void *arg) 2115{ 2116 2117 adaflush(); 2118 if (ada_spindown_suspend != 0) 2119 adaspindown(ATA_SLEEP, CAM_DEV_QFREEZE); 2120} 2121 2122static void 2123adaresume(void *arg) 2124{ 2125 struct cam_periph *periph; 2126 struct ada_softc *softc; 2127 2128 if (ada_spindown_suspend == 0) 2129 return; 2130 2131 CAM_PERIPH_FOREACH(periph, &adadriver) { 2132 cam_periph_lock(periph); 2133 softc = (struct ada_softc *)periph->softc; 2134 /* 2135 * We only spin-down the drive if it is capable of it.. 2136 */ 2137 if ((softc->flags & ADA_FLAG_CAN_POWERMGT) == 0) { 2138 cam_periph_unlock(periph); 2139 continue; 2140 } 2141 2142 if (bootverbose) 2143 xpt_print(periph->path, "resume\n"); 2144 2145 /* 2146 * Drop freeze taken due to CAM_DEV_QFREEZE flag set on 2147 * sleep request. 2148 */ 2149 cam_release_devq(periph->path, 2150 /*relsim_flags*/0, 2151 /*openings*/0, 2152 /*timeout*/0, 2153 /*getcount_only*/0); 2154 2155 cam_periph_unlock(periph); 2156 } 2157} 2158 2159#endif /* _KERNEL */ 2160