ata_da.c revision 297711
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 297711 2016-04-08 13:43:39Z 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 * SuperTalent TeraDrive CT SSDs 489 * 4k optimised & trim only works in 4k requests + 4k aligned 490 */ 491 { T_DIRECT, SIP_MEDIA_FIXED, "*", "FTM??CT25H*", "*" }, 492 /*quirks*/ADA_Q_4K 493 }, 494 { 495 /* 496 * XceedIOPS SATA SSDs 497 * 4k optimised 498 */ 499 { T_DIRECT, SIP_MEDIA_FIXED, "*", "SG9XCS2D*", "*" }, 500 /*quirks*/ADA_Q_4K 501 }, 502 { 503 /* Default */ 504 { 505 T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, 506 /*vendor*/"*", /*product*/"*", /*revision*/"*" 507 }, 508 /*quirks*/0 509 }, 510}; 511 512static disk_strategy_t adastrategy; 513static dumper_t adadump; 514static periph_init_t adainit; 515static void adaasync(void *callback_arg, u_int32_t code, 516 struct cam_path *path, void *arg); 517static void adasysctlinit(void *context, int pending); 518static periph_ctor_t adaregister; 519static periph_dtor_t adacleanup; 520static periph_start_t adastart; 521static periph_oninv_t adaoninvalidate; 522static void adadone(struct cam_periph *periph, 523 union ccb *done_ccb); 524static int adaerror(union ccb *ccb, u_int32_t cam_flags, 525 u_int32_t sense_flags); 526static void adagetparams(struct cam_periph *periph, 527 struct ccb_getdev *cgd); 528static timeout_t adasendorderedtag; 529static void adashutdown(void *arg, int howto); 530static void adasuspend(void *arg); 531static void adaresume(void *arg); 532 533#ifndef ADA_DEFAULT_LEGACY_ALIASES 534#define ADA_DEFAULT_LEGACY_ALIASES 1 535#endif 536 537#ifndef ADA_DEFAULT_TIMEOUT 538#define ADA_DEFAULT_TIMEOUT 30 /* Timeout in seconds */ 539#endif 540 541#ifndef ADA_DEFAULT_RETRY 542#define ADA_DEFAULT_RETRY 4 543#endif 544 545#ifndef ADA_DEFAULT_SEND_ORDERED 546#define ADA_DEFAULT_SEND_ORDERED 1 547#endif 548 549#ifndef ADA_DEFAULT_SPINDOWN_SHUTDOWN 550#define ADA_DEFAULT_SPINDOWN_SHUTDOWN 1 551#endif 552 553#ifndef ADA_DEFAULT_SPINDOWN_SUSPEND 554#define ADA_DEFAULT_SPINDOWN_SUSPEND 1 555#endif 556 557#ifndef ADA_DEFAULT_READ_AHEAD 558#define ADA_DEFAULT_READ_AHEAD 1 559#endif 560 561#ifndef ADA_DEFAULT_WRITE_CACHE 562#define ADA_DEFAULT_WRITE_CACHE 1 563#endif 564 565#define ADA_RA (softc->read_ahead >= 0 ? \ 566 softc->read_ahead : ada_read_ahead) 567#define ADA_WC (softc->write_cache >= 0 ? \ 568 softc->write_cache : ada_write_cache) 569#define ADA_SIO (softc->sort_io_queue >= 0 ? \ 570 softc->sort_io_queue : cam_sort_io_queues) 571 572/* 573 * Most platforms map firmware geometry to actual, but some don't. If 574 * not overridden, default to nothing. 575 */ 576#ifndef ata_disk_firmware_geom_adjust 577#define ata_disk_firmware_geom_adjust(disk) 578#endif 579 580static int ada_legacy_aliases = ADA_DEFAULT_LEGACY_ALIASES; 581static int ada_retry_count = ADA_DEFAULT_RETRY; 582static int ada_default_timeout = ADA_DEFAULT_TIMEOUT; 583static int ada_send_ordered = ADA_DEFAULT_SEND_ORDERED; 584static int ada_spindown_shutdown = ADA_DEFAULT_SPINDOWN_SHUTDOWN; 585static int ada_spindown_suspend = ADA_DEFAULT_SPINDOWN_SUSPEND; 586static int ada_read_ahead = ADA_DEFAULT_READ_AHEAD; 587static int ada_write_cache = ADA_DEFAULT_WRITE_CACHE; 588 589static SYSCTL_NODE(_kern_cam, OID_AUTO, ada, CTLFLAG_RD, 0, 590 "CAM Direct Access Disk driver"); 591SYSCTL_INT(_kern_cam_ada, OID_AUTO, legacy_aliases, CTLFLAG_RW, 592 &ada_legacy_aliases, 0, "Create legacy-like device aliases"); 593TUNABLE_INT("kern.cam.ada.legacy_aliases", &ada_legacy_aliases); 594SYSCTL_INT(_kern_cam_ada, OID_AUTO, retry_count, CTLFLAG_RW, 595 &ada_retry_count, 0, "Normal I/O retry count"); 596TUNABLE_INT("kern.cam.ada.retry_count", &ada_retry_count); 597SYSCTL_INT(_kern_cam_ada, OID_AUTO, default_timeout, CTLFLAG_RW, 598 &ada_default_timeout, 0, "Normal I/O timeout (in seconds)"); 599TUNABLE_INT("kern.cam.ada.default_timeout", &ada_default_timeout); 600SYSCTL_INT(_kern_cam_ada, OID_AUTO, send_ordered, CTLFLAG_RW, 601 &ada_send_ordered, 0, "Send Ordered Tags"); 602TUNABLE_INT("kern.cam.ada.send_ordered", &ada_send_ordered); 603SYSCTL_INT(_kern_cam_ada, OID_AUTO, spindown_shutdown, CTLFLAG_RW, 604 &ada_spindown_shutdown, 0, "Spin down upon shutdown"); 605TUNABLE_INT("kern.cam.ada.spindown_shutdown", &ada_spindown_shutdown); 606SYSCTL_INT(_kern_cam_ada, OID_AUTO, spindown_suspend, CTLFLAG_RW, 607 &ada_spindown_suspend, 0, "Spin down upon suspend"); 608TUNABLE_INT("kern.cam.ada.spindown_suspend", &ada_spindown_suspend); 609SYSCTL_INT(_kern_cam_ada, OID_AUTO, read_ahead, CTLFLAG_RW, 610 &ada_read_ahead, 0, "Enable disk read-ahead"); 611TUNABLE_INT("kern.cam.ada.read_ahead", &ada_read_ahead); 612SYSCTL_INT(_kern_cam_ada, OID_AUTO, write_cache, CTLFLAG_RW, 613 &ada_write_cache, 0, "Enable disk write cache"); 614TUNABLE_INT("kern.cam.ada.write_cache", &ada_write_cache); 615 616/* 617 * ADA_ORDEREDTAG_INTERVAL determines how often, relative 618 * to the default timeout, we check to see whether an ordered 619 * tagged transaction is appropriate to prevent simple tag 620 * starvation. Since we'd like to ensure that there is at least 621 * 1/2 of the timeout length left for a starved transaction to 622 * complete after we've sent an ordered tag, we must poll at least 623 * four times in every timeout period. This takes care of the worst 624 * case where a starved transaction starts during an interval that 625 * meets the requirement "don't send an ordered tag" test so it takes 626 * us two intervals to determine that a tag must be sent. 627 */ 628#ifndef ADA_ORDEREDTAG_INTERVAL 629#define ADA_ORDEREDTAG_INTERVAL 4 630#endif 631 632static struct periph_driver adadriver = 633{ 634 adainit, "ada", 635 TAILQ_HEAD_INITIALIZER(adadriver.units), /* generation */ 0 636}; 637 638PERIPHDRIVER_DECLARE(ada, adadriver); 639 640static int 641adaopen(struct disk *dp) 642{ 643 struct cam_periph *periph; 644 struct ada_softc *softc; 645 int error; 646 647 periph = (struct cam_periph *)dp->d_drv1; 648 if (cam_periph_acquire(periph) != CAM_REQ_CMP) { 649 return(ENXIO); 650 } 651 652 cam_periph_lock(periph); 653 if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) { 654 cam_periph_unlock(periph); 655 cam_periph_release(periph); 656 return (error); 657 } 658 659 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH, 660 ("adaopen\n")); 661 662 softc = (struct ada_softc *)periph->softc; 663 softc->flags |= ADA_FLAG_OPEN; 664 665 cam_periph_unhold(periph); 666 cam_periph_unlock(periph); 667 return (0); 668} 669 670static int 671adaclose(struct disk *dp) 672{ 673 struct cam_periph *periph; 674 struct ada_softc *softc; 675 union ccb *ccb; 676 int error; 677 678 periph = (struct cam_periph *)dp->d_drv1; 679 softc = (struct ada_softc *)periph->softc; 680 cam_periph_lock(periph); 681 682 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH, 683 ("adaclose\n")); 684 685 /* We only sync the cache if the drive is capable of it. */ 686 if ((softc->flags & ADA_FLAG_DIRTY) != 0 && 687 (softc->flags & ADA_FLAG_CAN_FLUSHCACHE) != 0 && 688 (periph->flags & CAM_PERIPH_INVALID) == 0 && 689 cam_periph_hold(periph, PRIBIO) == 0) { 690 691 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL); 692 cam_fill_ataio(&ccb->ataio, 693 1, 694 adadone, 695 CAM_DIR_NONE, 696 0, 697 NULL, 698 0, 699 ada_default_timeout*1000); 700 701 if (softc->flags & ADA_FLAG_CAN_48BIT) 702 ata_48bit_cmd(&ccb->ataio, ATA_FLUSHCACHE48, 0, 0, 0); 703 else 704 ata_28bit_cmd(&ccb->ataio, ATA_FLUSHCACHE, 0, 0, 0); 705 error = cam_periph_runccb(ccb, adaerror, /*cam_flags*/0, 706 /*sense_flags*/0, softc->disk->d_devstat); 707 708 if (error != 0) 709 xpt_print(periph->path, "Synchronize cache failed\n"); 710 else 711 softc->flags &= ~ADA_FLAG_DIRTY; 712 xpt_release_ccb(ccb); 713 cam_periph_unhold(periph); 714 } 715 716 softc->flags &= ~ADA_FLAG_OPEN; 717 718 while (softc->refcount != 0) 719 cam_periph_sleep(periph, &softc->refcount, PRIBIO, "adaclose", 1); 720 cam_periph_unlock(periph); 721 cam_periph_release(periph); 722 return (0); 723} 724 725static void 726adaschedule(struct cam_periph *periph) 727{ 728 struct ada_softc *softc = (struct ada_softc *)periph->softc; 729 730 if (softc->state != ADA_STATE_NORMAL) 731 return; 732 733 /* Check if we have more work to do. */ 734 if (bioq_first(&softc->bio_queue) || 735 (!softc->trim_running && bioq_first(&softc->trim_queue))) { 736 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 737 } 738} 739 740/* 741 * Actually translate the requested transfer into one the physical driver 742 * can understand. The transfer is described by a buf and will include 743 * only one physical transfer. 744 */ 745static void 746adastrategy(struct bio *bp) 747{ 748 struct cam_periph *periph; 749 struct ada_softc *softc; 750 751 periph = (struct cam_periph *)bp->bio_disk->d_drv1; 752 softc = (struct ada_softc *)periph->softc; 753 754 cam_periph_lock(periph); 755 756 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("adastrategy(%p)\n", bp)); 757 758 /* 759 * If the device has been made invalid, error out 760 */ 761 if ((periph->flags & CAM_PERIPH_INVALID) != 0) { 762 cam_periph_unlock(periph); 763 biofinish(bp, NULL, ENXIO); 764 return; 765 } 766 767 /* 768 * Place it in the queue of disk activities for this disk 769 */ 770 if (bp->bio_cmd == BIO_DELETE) { 771 bioq_disksort(&softc->trim_queue, bp); 772 } else { 773 if (ADA_SIO) 774 bioq_disksort(&softc->bio_queue, bp); 775 else 776 bioq_insert_tail(&softc->bio_queue, bp); 777 } 778 779 /* 780 * Schedule ourselves for performing the work. 781 */ 782 adaschedule(periph); 783 cam_periph_unlock(periph); 784 785 return; 786} 787 788static int 789adadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length) 790{ 791 struct cam_periph *periph; 792 struct ada_softc *softc; 793 u_int secsize; 794 union ccb ccb; 795 struct disk *dp; 796 uint64_t lba; 797 uint16_t count; 798 int error = 0; 799 800 dp = arg; 801 periph = dp->d_drv1; 802 softc = (struct ada_softc *)periph->softc; 803 cam_periph_lock(periph); 804 secsize = softc->params.secsize; 805 lba = offset / secsize; 806 count = length / secsize; 807 808 if ((periph->flags & CAM_PERIPH_INVALID) != 0) { 809 cam_periph_unlock(periph); 810 return (ENXIO); 811 } 812 813 if (length > 0) { 814 xpt_setup_ccb(&ccb.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 815 ccb.ccb_h.ccb_state = ADA_CCB_DUMP; 816 cam_fill_ataio(&ccb.ataio, 817 0, 818 adadone, 819 CAM_DIR_OUT, 820 0, 821 (u_int8_t *) virtual, 822 length, 823 ada_default_timeout*1000); 824 if ((softc->flags & ADA_FLAG_CAN_48BIT) && 825 (lba + count >= ATA_MAX_28BIT_LBA || 826 count >= 256)) { 827 ata_48bit_cmd(&ccb.ataio, ATA_WRITE_DMA48, 828 0, lba, count); 829 } else { 830 ata_28bit_cmd(&ccb.ataio, ATA_WRITE_DMA, 831 0, lba, count); 832 } 833 xpt_polled_action(&ccb); 834 835 error = cam_periph_error(&ccb, 836 0, SF_NO_RECOVERY | SF_NO_RETRY, NULL); 837 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0) 838 cam_release_devq(ccb.ccb_h.path, /*relsim_flags*/0, 839 /*reduction*/0, /*timeout*/0, /*getcount_only*/0); 840 if (error != 0) 841 printf("Aborting dump due to I/O error.\n"); 842 843 cam_periph_unlock(periph); 844 return (error); 845 } 846 847 if (softc->flags & ADA_FLAG_CAN_FLUSHCACHE) { 848 xpt_setup_ccb(&ccb.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 849 850 ccb.ccb_h.ccb_state = ADA_CCB_DUMP; 851 cam_fill_ataio(&ccb.ataio, 852 0, 853 adadone, 854 CAM_DIR_NONE, 855 0, 856 NULL, 857 0, 858 ada_default_timeout*1000); 859 860 if (softc->flags & ADA_FLAG_CAN_48BIT) 861 ata_48bit_cmd(&ccb.ataio, ATA_FLUSHCACHE48, 0, 0, 0); 862 else 863 ata_28bit_cmd(&ccb.ataio, ATA_FLUSHCACHE, 0, 0, 0); 864 xpt_polled_action(&ccb); 865 866 error = cam_periph_error(&ccb, 867 0, SF_NO_RECOVERY | SF_NO_RETRY, NULL); 868 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0) 869 cam_release_devq(ccb.ccb_h.path, /*relsim_flags*/0, 870 /*reduction*/0, /*timeout*/0, /*getcount_only*/0); 871 if (error != 0) 872 xpt_print(periph->path, "Synchronize cache failed\n"); 873 } 874 cam_periph_unlock(periph); 875 return (error); 876} 877 878static void 879adainit(void) 880{ 881 cam_status status; 882 883 /* 884 * Install a global async callback. This callback will 885 * receive async callbacks like "new device found". 886 */ 887 status = xpt_register_async(AC_FOUND_DEVICE, adaasync, NULL, NULL); 888 889 if (status != CAM_REQ_CMP) { 890 printf("ada: Failed to attach master async callback " 891 "due to status 0x%x!\n", status); 892 } else if (ada_send_ordered) { 893 894 /* Register our event handlers */ 895 if ((EVENTHANDLER_REGISTER(power_suspend, adasuspend, 896 NULL, EVENTHANDLER_PRI_LAST)) == NULL) 897 printf("adainit: power event registration failed!\n"); 898 if ((EVENTHANDLER_REGISTER(power_resume, adaresume, 899 NULL, EVENTHANDLER_PRI_LAST)) == NULL) 900 printf("adainit: power event registration failed!\n"); 901 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, adashutdown, 902 NULL, SHUTDOWN_PRI_DEFAULT)) == NULL) 903 printf("adainit: shutdown event registration failed!\n"); 904 } 905} 906 907/* 908 * Callback from GEOM, called when it has finished cleaning up its 909 * resources. 910 */ 911static void 912adadiskgonecb(struct disk *dp) 913{ 914 struct cam_periph *periph; 915 916 periph = (struct cam_periph *)dp->d_drv1; 917 918 cam_periph_release(periph); 919} 920 921static void 922adaoninvalidate(struct cam_periph *periph) 923{ 924 struct ada_softc *softc; 925 926 softc = (struct ada_softc *)periph->softc; 927 928 /* 929 * De-register any async callbacks. 930 */ 931 xpt_register_async(0, adaasync, periph, periph->path); 932 933 /* 934 * Return all queued I/O with ENXIO. 935 * XXX Handle any transactions queued to the card 936 * with XPT_ABORT_CCB. 937 */ 938 bioq_flush(&softc->bio_queue, NULL, ENXIO); 939 bioq_flush(&softc->trim_queue, NULL, ENXIO); 940 941 disk_gone(softc->disk); 942} 943 944static void 945adacleanup(struct cam_periph *periph) 946{ 947 struct ada_softc *softc; 948 949 softc = (struct ada_softc *)periph->softc; 950 951 cam_periph_unlock(periph); 952 953 /* 954 * If we can't free the sysctl tree, oh well... 955 */ 956 if ((softc->flags & ADA_FLAG_SCTX_INIT) != 0 957 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) { 958 xpt_print(periph->path, "can't remove sysctl context\n"); 959 } 960 961 disk_destroy(softc->disk); 962 callout_drain(&softc->sendordered_c); 963 free(softc, M_DEVBUF); 964 cam_periph_lock(periph); 965} 966 967static void 968adaasync(void *callback_arg, u_int32_t code, 969 struct cam_path *path, void *arg) 970{ 971 struct ccb_getdev cgd; 972 struct cam_periph *periph; 973 struct ada_softc *softc; 974 975 periph = (struct cam_periph *)callback_arg; 976 switch (code) { 977 case AC_FOUND_DEVICE: 978 { 979 struct ccb_getdev *cgd; 980 cam_status status; 981 982 cgd = (struct ccb_getdev *)arg; 983 if (cgd == NULL) 984 break; 985 986 if (cgd->protocol != PROTO_ATA) 987 break; 988 989 /* 990 * Allocate a peripheral instance for 991 * this device and start the probe 992 * process. 993 */ 994 status = cam_periph_alloc(adaregister, adaoninvalidate, 995 adacleanup, adastart, 996 "ada", CAM_PERIPH_BIO, 997 path, adaasync, 998 AC_FOUND_DEVICE, cgd); 999 1000 if (status != CAM_REQ_CMP 1001 && status != CAM_REQ_INPROG) 1002 printf("adaasync: Unable to attach to new device " 1003 "due to status 0x%x\n", status); 1004 break; 1005 } 1006 case AC_GETDEV_CHANGED: 1007 { 1008 softc = (struct ada_softc *)periph->softc; 1009 xpt_setup_ccb(&cgd.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 1010 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1011 xpt_action((union ccb *)&cgd); 1012 1013 if ((cgd.ident_data.capabilities1 & ATA_SUPPORT_DMA) && 1014 (cgd.inq_flags & SID_DMA)) 1015 softc->flags |= ADA_FLAG_CAN_DMA; 1016 else 1017 softc->flags &= ~ADA_FLAG_CAN_DMA; 1018 if (cgd.ident_data.support.command2 & ATA_SUPPORT_ADDRESS48) { 1019 softc->flags |= ADA_FLAG_CAN_48BIT; 1020 if (cgd.inq_flags & SID_DMA48) 1021 softc->flags |= ADA_FLAG_CAN_DMA48; 1022 else 1023 softc->flags &= ~ADA_FLAG_CAN_DMA48; 1024 } else 1025 softc->flags &= ~(ADA_FLAG_CAN_48BIT | 1026 ADA_FLAG_CAN_DMA48); 1027 if ((cgd.ident_data.satacapabilities & ATA_SUPPORT_NCQ) && 1028 (cgd.inq_flags & SID_DMA) && (cgd.inq_flags & SID_CmdQue)) 1029 softc->flags |= ADA_FLAG_CAN_NCQ; 1030 else 1031 softc->flags &= ~ADA_FLAG_CAN_NCQ; 1032 if ((cgd.ident_data.support_dsm & ATA_SUPPORT_DSM_TRIM) && 1033 (cgd.inq_flags & SID_DMA)) 1034 softc->flags |= ADA_FLAG_CAN_TRIM; 1035 else 1036 softc->flags &= ~ADA_FLAG_CAN_TRIM; 1037 1038 cam_periph_async(periph, code, path, arg); 1039 break; 1040 } 1041 case AC_ADVINFO_CHANGED: 1042 { 1043 uintptr_t buftype; 1044 1045 buftype = (uintptr_t)arg; 1046 if (buftype == CDAI_TYPE_PHYS_PATH) { 1047 struct ada_softc *softc; 1048 1049 softc = periph->softc; 1050 disk_attr_changed(softc->disk, "GEOM::physpath", 1051 M_NOWAIT); 1052 } 1053 break; 1054 } 1055 case AC_SENT_BDR: 1056 case AC_BUS_RESET: 1057 { 1058 softc = (struct ada_softc *)periph->softc; 1059 cam_periph_async(periph, code, path, arg); 1060 if (softc->state != ADA_STATE_NORMAL) 1061 break; 1062 xpt_setup_ccb(&cgd.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 1063 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1064 xpt_action((union ccb *)&cgd); 1065 if (ADA_RA >= 0 && 1066 cgd.ident_data.support.command1 & ATA_SUPPORT_LOOKAHEAD) 1067 softc->state = ADA_STATE_RAHEAD; 1068 else if (ADA_WC >= 0 && 1069 cgd.ident_data.support.command1 & ATA_SUPPORT_WRITECACHE) 1070 softc->state = ADA_STATE_WCACHE; 1071 else 1072 break; 1073 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 1074 softc->state = ADA_STATE_NORMAL; 1075 else 1076 xpt_schedule(periph, CAM_PRIORITY_DEV); 1077 } 1078 default: 1079 cam_periph_async(periph, code, path, arg); 1080 break; 1081 } 1082} 1083 1084static void 1085adasysctlinit(void *context, int pending) 1086{ 1087 struct cam_periph *periph; 1088 struct ada_softc *softc; 1089 char tmpstr[80], tmpstr2[80]; 1090 1091 periph = (struct cam_periph *)context; 1092 1093 /* periph was held for us when this task was enqueued */ 1094 if ((periph->flags & CAM_PERIPH_INVALID) != 0) { 1095 cam_periph_release(periph); 1096 return; 1097 } 1098 1099 softc = (struct ada_softc *)periph->softc; 1100 snprintf(tmpstr, sizeof(tmpstr), "CAM ADA unit %d", periph->unit_number); 1101 snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number); 1102 1103 sysctl_ctx_init(&softc->sysctl_ctx); 1104 softc->flags |= ADA_FLAG_SCTX_INIT; 1105 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1106 SYSCTL_STATIC_CHILDREN(_kern_cam_ada), OID_AUTO, tmpstr2, 1107 CTLFLAG_RD, 0, tmpstr); 1108 if (softc->sysctl_tree == NULL) { 1109 printf("adasysctlinit: unable to allocate sysctl tree\n"); 1110 cam_periph_release(periph); 1111 return; 1112 } 1113 1114 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1115 OID_AUTO, "read_ahead", CTLFLAG_RW | CTLFLAG_MPSAFE, 1116 &softc->read_ahead, 0, "Enable disk read ahead."); 1117 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1118 OID_AUTO, "write_cache", CTLFLAG_RW | CTLFLAG_MPSAFE, 1119 &softc->write_cache, 0, "Enable disk write cache."); 1120 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1121 OID_AUTO, "sort_io_queue", CTLFLAG_RW | CTLFLAG_MPSAFE, 1122 &softc->sort_io_queue, 0, 1123 "Sort IO queue to try and optimise disk access patterns"); 1124#ifdef ADA_TEST_FAILURE 1125 /* 1126 * Add a 'door bell' sysctl which allows one to set it from userland 1127 * and cause something bad to happen. For the moment, we only allow 1128 * whacking the next read or write. 1129 */ 1130 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1131 OID_AUTO, "force_read_error", CTLFLAG_RW | CTLFLAG_MPSAFE, 1132 &softc->force_read_error, 0, 1133 "Force a read error for the next N reads."); 1134 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1135 OID_AUTO, "force_write_error", CTLFLAG_RW | CTLFLAG_MPSAFE, 1136 &softc->force_write_error, 0, 1137 "Force a write error for the next N writes."); 1138 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1139 OID_AUTO, "periodic_read_error", CTLFLAG_RW | CTLFLAG_MPSAFE, 1140 &softc->periodic_read_error, 0, 1141 "Force a read error every N reads (don't set too low)."); 1142#endif 1143 cam_periph_release(periph); 1144} 1145 1146static int 1147adagetattr(struct bio *bp) 1148{ 1149 int ret; 1150 struct cam_periph *periph; 1151 1152 periph = (struct cam_periph *)bp->bio_disk->d_drv1; 1153 cam_periph_lock(periph); 1154 ret = xpt_getattr(bp->bio_data, bp->bio_length, bp->bio_attribute, 1155 periph->path); 1156 cam_periph_unlock(periph); 1157 if (ret == 0) 1158 bp->bio_completed = bp->bio_length; 1159 return ret; 1160} 1161 1162static cam_status 1163adaregister(struct cam_periph *periph, void *arg) 1164{ 1165 struct ada_softc *softc; 1166 struct ccb_pathinq cpi; 1167 struct ccb_getdev *cgd; 1168 char announce_buf[80], buf1[32]; 1169 struct disk_params *dp; 1170 caddr_t match; 1171 u_int maxio; 1172 int legacy_id, quirks; 1173 1174 cgd = (struct ccb_getdev *)arg; 1175 if (cgd == NULL) { 1176 printf("adaregister: no getdev CCB, can't register device\n"); 1177 return(CAM_REQ_CMP_ERR); 1178 } 1179 1180 softc = (struct ada_softc *)malloc(sizeof(*softc), M_DEVBUF, 1181 M_NOWAIT|M_ZERO); 1182 1183 if (softc == NULL) { 1184 printf("adaregister: Unable to probe new device. " 1185 "Unable to allocate softc\n"); 1186 return(CAM_REQ_CMP_ERR); 1187 } 1188 1189 bioq_init(&softc->bio_queue); 1190 bioq_init(&softc->trim_queue); 1191 1192 if ((cgd->ident_data.capabilities1 & ATA_SUPPORT_DMA) && 1193 (cgd->inq_flags & SID_DMA)) 1194 softc->flags |= ADA_FLAG_CAN_DMA; 1195 if (cgd->ident_data.support.command2 & ATA_SUPPORT_ADDRESS48) { 1196 softc->flags |= ADA_FLAG_CAN_48BIT; 1197 if (cgd->inq_flags & SID_DMA48) 1198 softc->flags |= ADA_FLAG_CAN_DMA48; 1199 } 1200 if (cgd->ident_data.support.command2 & ATA_SUPPORT_FLUSHCACHE) 1201 softc->flags |= ADA_FLAG_CAN_FLUSHCACHE; 1202 if (cgd->ident_data.support.command1 & ATA_SUPPORT_POWERMGT) 1203 softc->flags |= ADA_FLAG_CAN_POWERMGT; 1204 if ((cgd->ident_data.satacapabilities & ATA_SUPPORT_NCQ) && 1205 (cgd->inq_flags & SID_DMA) && (cgd->inq_flags & SID_CmdQue)) 1206 softc->flags |= ADA_FLAG_CAN_NCQ; 1207 if ((cgd->ident_data.support_dsm & ATA_SUPPORT_DSM_TRIM) && 1208 (cgd->inq_flags & SID_DMA)) { 1209 softc->flags |= ADA_FLAG_CAN_TRIM; 1210 softc->trim_max_ranges = TRIM_MAX_RANGES; 1211 if (cgd->ident_data.max_dsm_blocks != 0) { 1212 softc->trim_max_ranges = 1213 min(cgd->ident_data.max_dsm_blocks * 1214 ATA_DSM_BLK_RANGES, softc->trim_max_ranges); 1215 } 1216 } 1217 if (cgd->ident_data.support.command2 & ATA_SUPPORT_CFA) 1218 softc->flags |= ADA_FLAG_CAN_CFA; 1219 1220 periph->softc = softc; 1221 1222 /* 1223 * See if this device has any quirks. 1224 */ 1225 match = cam_quirkmatch((caddr_t)&cgd->ident_data, 1226 (caddr_t)ada_quirk_table, 1227 sizeof(ada_quirk_table)/sizeof(*ada_quirk_table), 1228 sizeof(*ada_quirk_table), ata_identify_match); 1229 if (match != NULL) 1230 softc->quirks = ((struct ada_quirk_entry *)match)->quirks; 1231 else 1232 softc->quirks = ADA_Q_NONE; 1233 1234 bzero(&cpi, sizeof(cpi)); 1235 xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NONE); 1236 cpi.ccb_h.func_code = XPT_PATH_INQ; 1237 xpt_action((union ccb *)&cpi); 1238 1239 TASK_INIT(&softc->sysctl_task, 0, adasysctlinit, periph); 1240 1241 /* 1242 * Register this media as a disk 1243 */ 1244 (void)cam_periph_hold(periph, PRIBIO); 1245 cam_periph_unlock(periph); 1246 snprintf(announce_buf, sizeof(announce_buf), 1247 "kern.cam.ada.%d.quirks", periph->unit_number); 1248 quirks = softc->quirks; 1249 TUNABLE_INT_FETCH(announce_buf, &quirks); 1250 softc->quirks = quirks; 1251 softc->read_ahead = -1; 1252 snprintf(announce_buf, sizeof(announce_buf), 1253 "kern.cam.ada.%d.read_ahead", periph->unit_number); 1254 TUNABLE_INT_FETCH(announce_buf, &softc->read_ahead); 1255 softc->write_cache = -1; 1256 snprintf(announce_buf, sizeof(announce_buf), 1257 "kern.cam.ada.%d.write_cache", periph->unit_number); 1258 TUNABLE_INT_FETCH(announce_buf, &softc->write_cache); 1259 /* Disable queue sorting for non-rotational media by default. */ 1260 if (cgd->ident_data.media_rotation_rate == ATA_RATE_NON_ROTATING) 1261 softc->sort_io_queue = 0; 1262 else 1263 softc->sort_io_queue = -1; 1264 adagetparams(periph, cgd); 1265 softc->disk = disk_alloc(); 1266 softc->disk->d_rotation_rate = cgd->ident_data.media_rotation_rate; 1267 softc->disk->d_devstat = devstat_new_entry(periph->periph_name, 1268 periph->unit_number, softc->params.secsize, 1269 DEVSTAT_ALL_SUPPORTED, 1270 DEVSTAT_TYPE_DIRECT | 1271 XPORT_DEVSTAT_TYPE(cpi.transport), 1272 DEVSTAT_PRIORITY_DISK); 1273 softc->disk->d_open = adaopen; 1274 softc->disk->d_close = adaclose; 1275 softc->disk->d_strategy = adastrategy; 1276 softc->disk->d_getattr = adagetattr; 1277 softc->disk->d_dump = adadump; 1278 softc->disk->d_gone = adadiskgonecb; 1279 softc->disk->d_name = "ada"; 1280 softc->disk->d_drv1 = periph; 1281 maxio = cpi.maxio; /* Honor max I/O size of SIM */ 1282 if (maxio == 0) 1283 maxio = DFLTPHYS; /* traditional default */ 1284 else if (maxio > MAXPHYS) 1285 maxio = MAXPHYS; /* for safety */ 1286 if (softc->flags & ADA_FLAG_CAN_48BIT) 1287 maxio = min(maxio, 65536 * softc->params.secsize); 1288 else /* 28bit ATA command limit */ 1289 maxio = min(maxio, 256 * softc->params.secsize); 1290 softc->disk->d_maxsize = maxio; 1291 softc->disk->d_unit = periph->unit_number; 1292 softc->disk->d_flags = DISKFLAG_DIRECT_COMPLETION; 1293 if (softc->flags & ADA_FLAG_CAN_FLUSHCACHE) 1294 softc->disk->d_flags |= DISKFLAG_CANFLUSHCACHE; 1295 if (softc->flags & ADA_FLAG_CAN_TRIM) { 1296 softc->disk->d_flags |= DISKFLAG_CANDELETE; 1297 softc->disk->d_delmaxsize = softc->params.secsize * 1298 ATA_DSM_RANGE_MAX * 1299 softc->trim_max_ranges; 1300 } else if ((softc->flags & ADA_FLAG_CAN_CFA) && 1301 !(softc->flags & ADA_FLAG_CAN_48BIT)) { 1302 softc->disk->d_flags |= DISKFLAG_CANDELETE; 1303 softc->disk->d_delmaxsize = 256 * softc->params.secsize; 1304 } else 1305 softc->disk->d_delmaxsize = maxio; 1306 if ((cpi.hba_misc & PIM_UNMAPPED) != 0) 1307 softc->disk->d_flags |= DISKFLAG_UNMAPPED_BIO; 1308 strlcpy(softc->disk->d_descr, cgd->ident_data.model, 1309 MIN(sizeof(softc->disk->d_descr), sizeof(cgd->ident_data.model))); 1310 strlcpy(softc->disk->d_ident, cgd->ident_data.serial, 1311 MIN(sizeof(softc->disk->d_ident), sizeof(cgd->ident_data.serial))); 1312 softc->disk->d_hba_vendor = cpi.hba_vendor; 1313 softc->disk->d_hba_device = cpi.hba_device; 1314 softc->disk->d_hba_subvendor = cpi.hba_subvendor; 1315 softc->disk->d_hba_subdevice = cpi.hba_subdevice; 1316 1317 softc->disk->d_sectorsize = softc->params.secsize; 1318 softc->disk->d_mediasize = (off_t)softc->params.sectors * 1319 softc->params.secsize; 1320 if (ata_physical_sector_size(&cgd->ident_data) != 1321 softc->params.secsize) { 1322 softc->disk->d_stripesize = 1323 ata_physical_sector_size(&cgd->ident_data); 1324 softc->disk->d_stripeoffset = (softc->disk->d_stripesize - 1325 ata_logical_sector_offset(&cgd->ident_data)) % 1326 softc->disk->d_stripesize; 1327 } else if (softc->quirks & ADA_Q_4K) { 1328 softc->disk->d_stripesize = 4096; 1329 softc->disk->d_stripeoffset = 0; 1330 } 1331 softc->disk->d_fwsectors = softc->params.secs_per_track; 1332 softc->disk->d_fwheads = softc->params.heads; 1333 ata_disk_firmware_geom_adjust(softc->disk); 1334 1335 if (ada_legacy_aliases) { 1336#ifdef ATA_STATIC_ID 1337 legacy_id = xpt_path_legacy_ata_id(periph->path); 1338#else 1339 legacy_id = softc->disk->d_unit; 1340#endif 1341 if (legacy_id >= 0) { 1342 snprintf(announce_buf, sizeof(announce_buf), 1343 "kern.devalias.%s%d", 1344 softc->disk->d_name, softc->disk->d_unit); 1345 snprintf(buf1, sizeof(buf1), 1346 "ad%d", legacy_id); 1347 setenv(announce_buf, buf1); 1348 } 1349 } else 1350 legacy_id = -1; 1351 /* 1352 * Acquire a reference to the periph before we register with GEOM. 1353 * We'll release this reference once GEOM calls us back (via 1354 * adadiskgonecb()) telling us that our provider has been freed. 1355 */ 1356 if (cam_periph_acquire(periph) != CAM_REQ_CMP) { 1357 xpt_print(periph->path, "%s: lost periph during " 1358 "registration!\n", __func__); 1359 cam_periph_lock(periph); 1360 return (CAM_REQ_CMP_ERR); 1361 } 1362 disk_create(softc->disk, DISK_VERSION); 1363 cam_periph_lock(periph); 1364 cam_periph_unhold(periph); 1365 1366 dp = &softc->params; 1367 snprintf(announce_buf, sizeof(announce_buf), 1368 "%juMB (%ju %u byte sectors)", 1369 ((uintmax_t)dp->secsize * dp->sectors) / (1024 * 1024), 1370 (uintmax_t)dp->sectors, dp->secsize); 1371 xpt_announce_periph(periph, announce_buf); 1372 xpt_announce_quirks(periph, softc->quirks, ADA_Q_BIT_STRING); 1373 if (legacy_id >= 0) 1374 printf("%s%d: Previously was known as ad%d\n", 1375 periph->periph_name, periph->unit_number, legacy_id); 1376 1377 /* 1378 * Create our sysctl variables, now that we know 1379 * we have successfully attached. 1380 */ 1381 if (cam_periph_acquire(periph) == CAM_REQ_CMP) 1382 taskqueue_enqueue(taskqueue_thread, &softc->sysctl_task); 1383 1384 /* 1385 * Add async callbacks for bus reset and 1386 * bus device reset calls. I don't bother 1387 * checking if this fails as, in most cases, 1388 * the system will function just fine without 1389 * them and the only alternative would be to 1390 * not attach the device on failure. 1391 */ 1392 xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE | 1393 AC_GETDEV_CHANGED | AC_ADVINFO_CHANGED, 1394 adaasync, periph, periph->path); 1395 1396 /* 1397 * Schedule a periodic event to occasionally send an 1398 * ordered tag to a device. 1399 */ 1400 callout_init_mtx(&softc->sendordered_c, cam_periph_mtx(periph), 0); 1401 callout_reset(&softc->sendordered_c, 1402 (ada_default_timeout * hz) / ADA_ORDEREDTAG_INTERVAL, 1403 adasendorderedtag, softc); 1404 1405 if (ADA_RA >= 0 && 1406 cgd->ident_data.support.command1 & ATA_SUPPORT_LOOKAHEAD) { 1407 softc->state = ADA_STATE_RAHEAD; 1408 } else if (ADA_WC >= 0 && 1409 cgd->ident_data.support.command1 & ATA_SUPPORT_WRITECACHE) { 1410 softc->state = ADA_STATE_WCACHE; 1411 } else { 1412 softc->state = ADA_STATE_NORMAL; 1413 return(CAM_REQ_CMP); 1414 } 1415 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 1416 softc->state = ADA_STATE_NORMAL; 1417 else 1418 xpt_schedule(periph, CAM_PRIORITY_DEV); 1419 return(CAM_REQ_CMP); 1420} 1421 1422static void 1423ada_dsmtrim(struct ada_softc *softc, struct bio *bp, struct ccb_ataio *ataio) 1424{ 1425 struct trim_request *req = &softc->trim_req; 1426 uint64_t lastlba = (uint64_t)-1; 1427 int c, lastcount = 0, off, ranges = 0; 1428 1429 bzero(req, sizeof(*req)); 1430 TAILQ_INIT(&req->bps); 1431 do { 1432 uint64_t lba = bp->bio_pblkno; 1433 int count = bp->bio_bcount / softc->params.secsize; 1434 1435 bioq_remove(&softc->trim_queue, bp); 1436 1437 /* Try to extend the previous range. */ 1438 if (lba == lastlba) { 1439 c = min(count, ATA_DSM_RANGE_MAX - lastcount); 1440 lastcount += c; 1441 off = (ranges - 1) * ATA_DSM_RANGE_SIZE; 1442 req->data[off + 6] = lastcount & 0xff; 1443 req->data[off + 7] = 1444 (lastcount >> 8) & 0xff; 1445 count -= c; 1446 lba += c; 1447 } 1448 1449 while (count > 0) { 1450 c = min(count, ATA_DSM_RANGE_MAX); 1451 off = ranges * ATA_DSM_RANGE_SIZE; 1452 req->data[off + 0] = lba & 0xff; 1453 req->data[off + 1] = (lba >> 8) & 0xff; 1454 req->data[off + 2] = (lba >> 16) & 0xff; 1455 req->data[off + 3] = (lba >> 24) & 0xff; 1456 req->data[off + 4] = (lba >> 32) & 0xff; 1457 req->data[off + 5] = (lba >> 40) & 0xff; 1458 req->data[off + 6] = c & 0xff; 1459 req->data[off + 7] = (c >> 8) & 0xff; 1460 lba += c; 1461 count -= c; 1462 lastcount = c; 1463 ranges++; 1464 /* 1465 * Its the caller's responsibility to ensure the 1466 * request will fit so we don't need to check for 1467 * overrun here 1468 */ 1469 } 1470 lastlba = lba; 1471 TAILQ_INSERT_TAIL(&req->bps, bp, bio_queue); 1472 bp = bioq_first(&softc->trim_queue); 1473 if (bp == NULL || 1474 bp->bio_bcount / softc->params.secsize > 1475 (softc->trim_max_ranges - ranges) * ATA_DSM_RANGE_MAX) 1476 break; 1477 } while (1); 1478 cam_fill_ataio(ataio, 1479 ada_retry_count, 1480 adadone, 1481 CAM_DIR_OUT, 1482 0, 1483 req->data, 1484 ((ranges + ATA_DSM_BLK_RANGES - 1) / 1485 ATA_DSM_BLK_RANGES) * ATA_DSM_BLK_SIZE, 1486 ada_default_timeout * 1000); 1487 ata_48bit_cmd(ataio, ATA_DATA_SET_MANAGEMENT, 1488 ATA_DSM_TRIM, 0, (ranges + ATA_DSM_BLK_RANGES - 1489 1) / ATA_DSM_BLK_RANGES); 1490} 1491 1492static void 1493ada_cfaerase(struct ada_softc *softc, struct bio *bp, struct ccb_ataio *ataio) 1494{ 1495 struct trim_request *req = &softc->trim_req; 1496 uint64_t lba = bp->bio_pblkno; 1497 uint16_t count = bp->bio_bcount / softc->params.secsize; 1498 1499 bzero(req, sizeof(*req)); 1500 TAILQ_INIT(&req->bps); 1501 bioq_remove(&softc->trim_queue, bp); 1502 TAILQ_INSERT_TAIL(&req->bps, bp, bio_queue); 1503 1504 cam_fill_ataio(ataio, 1505 ada_retry_count, 1506 adadone, 1507 CAM_DIR_NONE, 1508 0, 1509 NULL, 1510 0, 1511 ada_default_timeout*1000); 1512 1513 if (count >= 256) 1514 count = 0; 1515 ata_28bit_cmd(ataio, ATA_CFA_ERASE, 0, lba, count); 1516} 1517 1518static void 1519adastart(struct cam_periph *periph, union ccb *start_ccb) 1520{ 1521 struct ada_softc *softc = (struct ada_softc *)periph->softc; 1522 struct ccb_ataio *ataio = &start_ccb->ataio; 1523 1524 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("adastart\n")); 1525 1526 switch (softc->state) { 1527 case ADA_STATE_NORMAL: 1528 { 1529 struct bio *bp; 1530 u_int8_t tag_code; 1531 1532 /* Run TRIM if not running yet. */ 1533 if (!softc->trim_running && 1534 (bp = bioq_first(&softc->trim_queue)) != 0) { 1535 if (softc->flags & ADA_FLAG_CAN_TRIM) { 1536 ada_dsmtrim(softc, bp, ataio); 1537 } else if ((softc->flags & ADA_FLAG_CAN_CFA) && 1538 !(softc->flags & ADA_FLAG_CAN_48BIT)) { 1539 ada_cfaerase(softc, bp, ataio); 1540 } else { 1541 /* This can happen if DMA was disabled. */ 1542 bioq_remove(&softc->trim_queue, bp); 1543 biofinish(bp, NULL, EOPNOTSUPP); 1544 xpt_release_ccb(start_ccb); 1545 adaschedule(periph); 1546 return; 1547 } 1548 softc->trim_running = 1; 1549 start_ccb->ccb_h.ccb_state = ADA_CCB_TRIM; 1550 start_ccb->ccb_h.flags |= CAM_UNLOCKED; 1551 goto out; 1552 } 1553 /* Run regular command. */ 1554 bp = bioq_first(&softc->bio_queue); 1555 if (bp == NULL) { 1556 xpt_release_ccb(start_ccb); 1557 break; 1558 } 1559 bioq_remove(&softc->bio_queue, bp); 1560 1561 if ((bp->bio_flags & BIO_ORDERED) != 0 1562 || (softc->flags & ADA_FLAG_NEED_OTAG) != 0) { 1563 softc->flags &= ~ADA_FLAG_NEED_OTAG; 1564 softc->flags |= ADA_FLAG_WAS_OTAG; 1565 tag_code = 0; 1566 } else { 1567 tag_code = 1; 1568 } 1569 switch (bp->bio_cmd) { 1570 case BIO_WRITE: 1571 case BIO_READ: 1572 { 1573 uint64_t lba = bp->bio_pblkno; 1574 uint16_t count = bp->bio_bcount / softc->params.secsize; 1575 void *data_ptr; 1576 int rw_op; 1577 1578 if (bp->bio_cmd == BIO_WRITE) { 1579 softc->flags |= ADA_FLAG_DIRTY; 1580 rw_op = CAM_DIR_OUT; 1581 } else { 1582 rw_op = CAM_DIR_IN; 1583 } 1584 1585 data_ptr = bp->bio_data; 1586 if ((bp->bio_flags & (BIO_UNMAPPED|BIO_VLIST)) != 0) { 1587 rw_op |= CAM_DATA_BIO; 1588 data_ptr = bp; 1589 } 1590 1591#ifdef ADA_TEST_FAILURE 1592 int fail = 0; 1593 1594 /* 1595 * Support the failure ioctls. If the command is a 1596 * read, and there are pending forced read errors, or 1597 * if a write and pending write errors, then fail this 1598 * operation with EIO. This is useful for testing 1599 * purposes. Also, support having every Nth read fail. 1600 * 1601 * This is a rather blunt tool. 1602 */ 1603 if (bp->bio_cmd == BIO_READ) { 1604 if (softc->force_read_error) { 1605 softc->force_read_error--; 1606 fail = 1; 1607 } 1608 if (softc->periodic_read_error > 0) { 1609 if (++softc->periodic_read_count >= 1610 softc->periodic_read_error) { 1611 softc->periodic_read_count = 0; 1612 fail = 1; 1613 } 1614 } 1615 } else { 1616 if (softc->force_write_error) { 1617 softc->force_write_error--; 1618 fail = 1; 1619 } 1620 } 1621 if (fail) { 1622 biofinish(bp, NULL, EIO); 1623 xpt_release_ccb(start_ccb); 1624 adaschedule(periph); 1625 return; 1626 } 1627#endif 1628 KASSERT((bp->bio_flags & BIO_UNMAPPED) == 0 || 1629 round_page(bp->bio_bcount + bp->bio_ma_offset) / 1630 PAGE_SIZE == bp->bio_ma_n, 1631 ("Short bio %p", bp)); 1632 cam_fill_ataio(ataio, 1633 ada_retry_count, 1634 adadone, 1635 rw_op, 1636 tag_code, 1637 data_ptr, 1638 bp->bio_bcount, 1639 ada_default_timeout*1000); 1640 1641 if ((softc->flags & ADA_FLAG_CAN_NCQ) && tag_code) { 1642 if (bp->bio_cmd == BIO_READ) { 1643 ata_ncq_cmd(ataio, ATA_READ_FPDMA_QUEUED, 1644 lba, count); 1645 } else { 1646 ata_ncq_cmd(ataio, ATA_WRITE_FPDMA_QUEUED, 1647 lba, count); 1648 } 1649 } else if ((softc->flags & ADA_FLAG_CAN_48BIT) && 1650 (lba + count >= ATA_MAX_28BIT_LBA || 1651 count > 256)) { 1652 if (softc->flags & ADA_FLAG_CAN_DMA48) { 1653 if (bp->bio_cmd == BIO_READ) { 1654 ata_48bit_cmd(ataio, ATA_READ_DMA48, 1655 0, lba, count); 1656 } else { 1657 ata_48bit_cmd(ataio, ATA_WRITE_DMA48, 1658 0, lba, count); 1659 } 1660 } else { 1661 if (bp->bio_cmd == BIO_READ) { 1662 ata_48bit_cmd(ataio, ATA_READ_MUL48, 1663 0, lba, count); 1664 } else { 1665 ata_48bit_cmd(ataio, ATA_WRITE_MUL48, 1666 0, lba, count); 1667 } 1668 } 1669 } else { 1670 if (count == 256) 1671 count = 0; 1672 if (softc->flags & ADA_FLAG_CAN_DMA) { 1673 if (bp->bio_cmd == BIO_READ) { 1674 ata_28bit_cmd(ataio, ATA_READ_DMA, 1675 0, lba, count); 1676 } else { 1677 ata_28bit_cmd(ataio, ATA_WRITE_DMA, 1678 0, lba, count); 1679 } 1680 } else { 1681 if (bp->bio_cmd == BIO_READ) { 1682 ata_28bit_cmd(ataio, ATA_READ_MUL, 1683 0, lba, count); 1684 } else { 1685 ata_28bit_cmd(ataio, ATA_WRITE_MUL, 1686 0, lba, count); 1687 } 1688 } 1689 } 1690 break; 1691 } 1692 case BIO_FLUSH: 1693 cam_fill_ataio(ataio, 1694 1, 1695 adadone, 1696 CAM_DIR_NONE, 1697 0, 1698 NULL, 1699 0, 1700 ada_default_timeout*1000); 1701 1702 if (softc->flags & ADA_FLAG_CAN_48BIT) 1703 ata_48bit_cmd(ataio, ATA_FLUSHCACHE48, 0, 0, 0); 1704 else 1705 ata_28bit_cmd(ataio, ATA_FLUSHCACHE, 0, 0, 0); 1706 break; 1707 } 1708 start_ccb->ccb_h.ccb_state = ADA_CCB_BUFFER_IO; 1709 start_ccb->ccb_h.flags |= CAM_UNLOCKED; 1710out: 1711 start_ccb->ccb_h.ccb_bp = bp; 1712 softc->outstanding_cmds++; 1713 softc->refcount++; 1714 cam_periph_unlock(periph); 1715 xpt_action(start_ccb); 1716 cam_periph_lock(periph); 1717 softc->refcount--; 1718 1719 /* May have more work to do, so ensure we stay scheduled */ 1720 adaschedule(periph); 1721 break; 1722 } 1723 case ADA_STATE_RAHEAD: 1724 case ADA_STATE_WCACHE: 1725 { 1726 cam_fill_ataio(ataio, 1727 1, 1728 adadone, 1729 CAM_DIR_NONE, 1730 0, 1731 NULL, 1732 0, 1733 ada_default_timeout*1000); 1734 1735 if (softc->state == ADA_STATE_RAHEAD) { 1736 ata_28bit_cmd(ataio, ATA_SETFEATURES, ADA_RA ? 1737 ATA_SF_ENAB_RCACHE : ATA_SF_DIS_RCACHE, 0, 0); 1738 start_ccb->ccb_h.ccb_state = ADA_CCB_RAHEAD; 1739 } else { 1740 ata_28bit_cmd(ataio, ATA_SETFEATURES, ADA_WC ? 1741 ATA_SF_ENAB_WCACHE : ATA_SF_DIS_WCACHE, 0, 0); 1742 start_ccb->ccb_h.ccb_state = ADA_CCB_WCACHE; 1743 } 1744 start_ccb->ccb_h.flags |= CAM_DEV_QFREEZE; 1745 xpt_action(start_ccb); 1746 break; 1747 } 1748 } 1749} 1750 1751static void 1752adadone(struct cam_periph *periph, union ccb *done_ccb) 1753{ 1754 struct ada_softc *softc; 1755 struct ccb_ataio *ataio; 1756 struct ccb_getdev *cgd; 1757 struct cam_path *path; 1758 int state; 1759 1760 softc = (struct ada_softc *)periph->softc; 1761 ataio = &done_ccb->ataio; 1762 path = done_ccb->ccb_h.path; 1763 1764 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("adadone\n")); 1765 1766 state = ataio->ccb_h.ccb_state & ADA_CCB_TYPE_MASK; 1767 switch (state) { 1768 case ADA_CCB_BUFFER_IO: 1769 case ADA_CCB_TRIM: 1770 { 1771 struct bio *bp; 1772 int error; 1773 1774 cam_periph_lock(periph); 1775 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1776 error = adaerror(done_ccb, 0, 0); 1777 if (error == ERESTART) { 1778 /* A retry was scheduled, so just return. */ 1779 cam_periph_unlock(periph); 1780 return; 1781 } 1782 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1783 cam_release_devq(path, 1784 /*relsim_flags*/0, 1785 /*reduction*/0, 1786 /*timeout*/0, 1787 /*getcount_only*/0); 1788 } else { 1789 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1790 panic("REQ_CMP with QFRZN"); 1791 error = 0; 1792 } 1793 bp = (struct bio *)done_ccb->ccb_h.ccb_bp; 1794 bp->bio_error = error; 1795 if (error != 0) { 1796 bp->bio_resid = bp->bio_bcount; 1797 bp->bio_flags |= BIO_ERROR; 1798 } else { 1799 if (state == ADA_CCB_TRIM) 1800 bp->bio_resid = 0; 1801 else 1802 bp->bio_resid = ataio->resid; 1803 if (bp->bio_resid > 0) 1804 bp->bio_flags |= BIO_ERROR; 1805 } 1806 softc->outstanding_cmds--; 1807 if (softc->outstanding_cmds == 0) 1808 softc->flags |= ADA_FLAG_WAS_OTAG; 1809 xpt_release_ccb(done_ccb); 1810 if (state == ADA_CCB_TRIM) { 1811 TAILQ_HEAD(, bio) queue; 1812 struct bio *bp1; 1813 1814 TAILQ_INIT(&queue); 1815 TAILQ_CONCAT(&queue, &softc->trim_req.bps, bio_queue); 1816 /* 1817 * Normally, the xpt_release_ccb() above would make sure 1818 * that when we have more work to do, that work would 1819 * get kicked off. However, we specifically keep 1820 * trim_running set to 0 before the call above to allow 1821 * other I/O to progress when many BIO_DELETE requests 1822 * are pushed down. We set trim_running to 0 and call 1823 * daschedule again so that we don't stall if there are 1824 * no other I/Os pending apart from BIO_DELETEs. 1825 */ 1826 softc->trim_running = 0; 1827 adaschedule(periph); 1828 cam_periph_unlock(periph); 1829 while ((bp1 = TAILQ_FIRST(&queue)) != NULL) { 1830 TAILQ_REMOVE(&queue, bp1, bio_queue); 1831 bp1->bio_error = error; 1832 if (error != 0) { 1833 bp1->bio_flags |= BIO_ERROR; 1834 bp1->bio_resid = bp1->bio_bcount; 1835 } else 1836 bp1->bio_resid = 0; 1837 biodone(bp1); 1838 } 1839 } else { 1840 cam_periph_unlock(periph); 1841 biodone(bp); 1842 } 1843 return; 1844 } 1845 case ADA_CCB_RAHEAD: 1846 { 1847 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1848 if (adaerror(done_ccb, 0, 0) == ERESTART) { 1849out: 1850 /* Drop freeze taken due to CAM_DEV_QFREEZE */ 1851 cam_release_devq(path, 0, 0, 0, FALSE); 1852 return; 1853 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1854 cam_release_devq(path, 1855 /*relsim_flags*/0, 1856 /*reduction*/0, 1857 /*timeout*/0, 1858 /*getcount_only*/0); 1859 } 1860 } 1861 1862 /* 1863 * Since our peripheral may be invalidated by an error 1864 * above or an external event, we must release our CCB 1865 * before releasing the reference on the peripheral. 1866 * The peripheral will only go away once the last reference 1867 * is removed, and we need it around for the CCB release 1868 * operation. 1869 */ 1870 cgd = (struct ccb_getdev *)done_ccb; 1871 xpt_setup_ccb(&cgd->ccb_h, path, CAM_PRIORITY_NORMAL); 1872 cgd->ccb_h.func_code = XPT_GDEV_TYPE; 1873 xpt_action((union ccb *)cgd); 1874 if (ADA_WC >= 0 && 1875 cgd->ident_data.support.command1 & ATA_SUPPORT_WRITECACHE) { 1876 softc->state = ADA_STATE_WCACHE; 1877 xpt_release_ccb(done_ccb); 1878 xpt_schedule(periph, CAM_PRIORITY_DEV); 1879 goto out; 1880 } 1881 softc->state = ADA_STATE_NORMAL; 1882 xpt_release_ccb(done_ccb); 1883 /* Drop freeze taken due to CAM_DEV_QFREEZE */ 1884 cam_release_devq(path, 0, 0, 0, FALSE); 1885 adaschedule(periph); 1886 cam_periph_release_locked(periph); 1887 return; 1888 } 1889 case ADA_CCB_WCACHE: 1890 { 1891 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1892 if (adaerror(done_ccb, 0, 0) == ERESTART) { 1893 goto out; 1894 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1895 cam_release_devq(path, 1896 /*relsim_flags*/0, 1897 /*reduction*/0, 1898 /*timeout*/0, 1899 /*getcount_only*/0); 1900 } 1901 } 1902 1903 softc->state = ADA_STATE_NORMAL; 1904 /* 1905 * Since our peripheral may be invalidated by an error 1906 * above or an external event, we must release our CCB 1907 * before releasing the reference on the peripheral. 1908 * The peripheral will only go away once the last reference 1909 * is removed, and we need it around for the CCB release 1910 * operation. 1911 */ 1912 xpt_release_ccb(done_ccb); 1913 /* Drop freeze taken due to CAM_DEV_QFREEZE */ 1914 cam_release_devq(path, 0, 0, 0, FALSE); 1915 adaschedule(periph); 1916 cam_periph_release_locked(periph); 1917 return; 1918 } 1919 case ADA_CCB_DUMP: 1920 /* No-op. We're polling */ 1921 return; 1922 default: 1923 break; 1924 } 1925 xpt_release_ccb(done_ccb); 1926} 1927 1928static int 1929adaerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 1930{ 1931 1932 return(cam_periph_error(ccb, cam_flags, sense_flags, NULL)); 1933} 1934 1935static void 1936adagetparams(struct cam_periph *periph, struct ccb_getdev *cgd) 1937{ 1938 struct ada_softc *softc = (struct ada_softc *)periph->softc; 1939 struct disk_params *dp = &softc->params; 1940 u_int64_t lbasize48; 1941 u_int32_t lbasize; 1942 1943 dp->secsize = ata_logical_sector_size(&cgd->ident_data); 1944 if ((cgd->ident_data.atavalid & ATA_FLAG_54_58) && 1945 cgd->ident_data.current_heads && cgd->ident_data.current_sectors) { 1946 dp->heads = cgd->ident_data.current_heads; 1947 dp->secs_per_track = cgd->ident_data.current_sectors; 1948 dp->cylinders = cgd->ident_data.cylinders; 1949 dp->sectors = (u_int32_t)cgd->ident_data.current_size_1 | 1950 ((u_int32_t)cgd->ident_data.current_size_2 << 16); 1951 } else { 1952 dp->heads = cgd->ident_data.heads; 1953 dp->secs_per_track = cgd->ident_data.sectors; 1954 dp->cylinders = cgd->ident_data.cylinders; 1955 dp->sectors = cgd->ident_data.cylinders * dp->heads * dp->secs_per_track; 1956 } 1957 lbasize = (u_int32_t)cgd->ident_data.lba_size_1 | 1958 ((u_int32_t)cgd->ident_data.lba_size_2 << 16); 1959 1960 /* use the 28bit LBA size if valid or bigger than the CHS mapping */ 1961 if (cgd->ident_data.cylinders == 16383 || dp->sectors < lbasize) 1962 dp->sectors = lbasize; 1963 1964 /* use the 48bit LBA size if valid */ 1965 lbasize48 = ((u_int64_t)cgd->ident_data.lba_size48_1) | 1966 ((u_int64_t)cgd->ident_data.lba_size48_2 << 16) | 1967 ((u_int64_t)cgd->ident_data.lba_size48_3 << 32) | 1968 ((u_int64_t)cgd->ident_data.lba_size48_4 << 48); 1969 if ((cgd->ident_data.support.command2 & ATA_SUPPORT_ADDRESS48) && 1970 lbasize48 > ATA_MAX_28BIT_LBA) 1971 dp->sectors = lbasize48; 1972} 1973 1974static void 1975adasendorderedtag(void *arg) 1976{ 1977 struct ada_softc *softc = arg; 1978 1979 if (ada_send_ordered) { 1980 if (softc->outstanding_cmds > 0) { 1981 if ((softc->flags & ADA_FLAG_WAS_OTAG) == 0) 1982 softc->flags |= ADA_FLAG_NEED_OTAG; 1983 softc->flags &= ~ADA_FLAG_WAS_OTAG; 1984 } 1985 } 1986 /* Queue us up again */ 1987 callout_reset(&softc->sendordered_c, 1988 (ada_default_timeout * hz) / ADA_ORDEREDTAG_INTERVAL, 1989 adasendorderedtag, softc); 1990} 1991 1992/* 1993 * Step through all ADA peripheral drivers, and if the device is still open, 1994 * sync the disk cache to physical media. 1995 */ 1996static void 1997adaflush(void) 1998{ 1999 struct cam_periph *periph; 2000 struct ada_softc *softc; 2001 union ccb *ccb; 2002 int error; 2003 2004 CAM_PERIPH_FOREACH(periph, &adadriver) { 2005 softc = (struct ada_softc *)periph->softc; 2006 if (SCHEDULER_STOPPED()) { 2007 /* If we paniced with the lock held, do not recurse. */ 2008 if (!cam_periph_owned(periph) && 2009 (softc->flags & ADA_FLAG_OPEN)) { 2010 adadump(softc->disk, NULL, 0, 0, 0); 2011 } 2012 continue; 2013 } 2014 cam_periph_lock(periph); 2015 /* 2016 * We only sync the cache if the drive is still open, and 2017 * if the drive is capable of it.. 2018 */ 2019 if (((softc->flags & ADA_FLAG_OPEN) == 0) || 2020 (softc->flags & ADA_FLAG_CAN_FLUSHCACHE) == 0) { 2021 cam_periph_unlock(periph); 2022 continue; 2023 } 2024 2025 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL); 2026 cam_fill_ataio(&ccb->ataio, 2027 0, 2028 adadone, 2029 CAM_DIR_NONE, 2030 0, 2031 NULL, 2032 0, 2033 ada_default_timeout*1000); 2034 if (softc->flags & ADA_FLAG_CAN_48BIT) 2035 ata_48bit_cmd(&ccb->ataio, ATA_FLUSHCACHE48, 0, 0, 0); 2036 else 2037 ata_28bit_cmd(&ccb->ataio, ATA_FLUSHCACHE, 0, 0, 0); 2038 2039 error = cam_periph_runccb(ccb, adaerror, /*cam_flags*/0, 2040 /*sense_flags*/ SF_NO_RECOVERY | SF_NO_RETRY, 2041 softc->disk->d_devstat); 2042 if (error != 0) 2043 xpt_print(periph->path, "Synchronize cache failed\n"); 2044 xpt_release_ccb(ccb); 2045 cam_periph_unlock(periph); 2046 } 2047} 2048 2049static void 2050adaspindown(uint8_t cmd, int flags) 2051{ 2052 struct cam_periph *periph; 2053 struct ada_softc *softc; 2054 union ccb *ccb; 2055 int error; 2056 2057 CAM_PERIPH_FOREACH(periph, &adadriver) { 2058 /* If we paniced with lock held - not recurse here. */ 2059 if (cam_periph_owned(periph)) 2060 continue; 2061 cam_periph_lock(periph); 2062 softc = (struct ada_softc *)periph->softc; 2063 /* 2064 * We only spin-down the drive if it is capable of it.. 2065 */ 2066 if ((softc->flags & ADA_FLAG_CAN_POWERMGT) == 0) { 2067 cam_periph_unlock(periph); 2068 continue; 2069 } 2070 2071 if (bootverbose) 2072 xpt_print(periph->path, "spin-down\n"); 2073 2074 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL); 2075 cam_fill_ataio(&ccb->ataio, 2076 0, 2077 adadone, 2078 CAM_DIR_NONE | flags, 2079 0, 2080 NULL, 2081 0, 2082 ada_default_timeout*1000); 2083 ata_28bit_cmd(&ccb->ataio, cmd, 0, 0, 0); 2084 2085 error = cam_periph_runccb(ccb, adaerror, /*cam_flags*/0, 2086 /*sense_flags*/ SF_NO_RECOVERY | SF_NO_RETRY, 2087 softc->disk->d_devstat); 2088 if (error != 0) 2089 xpt_print(periph->path, "Spin-down disk failed\n"); 2090 xpt_release_ccb(ccb); 2091 cam_periph_unlock(periph); 2092 } 2093} 2094 2095static void 2096adashutdown(void *arg, int howto) 2097{ 2098 2099 adaflush(); 2100 if (ada_spindown_shutdown != 0 && 2101 (howto & (RB_HALT | RB_POWEROFF)) != 0) 2102 adaspindown(ATA_STANDBY_IMMEDIATE, 0); 2103} 2104 2105static void 2106adasuspend(void *arg) 2107{ 2108 2109 adaflush(); 2110 if (ada_spindown_suspend != 0) 2111 adaspindown(ATA_SLEEP, CAM_DEV_QFREEZE); 2112} 2113 2114static void 2115adaresume(void *arg) 2116{ 2117 struct cam_periph *periph; 2118 struct ada_softc *softc; 2119 2120 if (ada_spindown_suspend == 0) 2121 return; 2122 2123 CAM_PERIPH_FOREACH(periph, &adadriver) { 2124 cam_periph_lock(periph); 2125 softc = (struct ada_softc *)periph->softc; 2126 /* 2127 * We only spin-down the drive if it is capable of it.. 2128 */ 2129 if ((softc->flags & ADA_FLAG_CAN_POWERMGT) == 0) { 2130 cam_periph_unlock(periph); 2131 continue; 2132 } 2133 2134 if (bootverbose) 2135 xpt_print(periph->path, "resume\n"); 2136 2137 /* 2138 * Drop freeze taken due to CAM_DEV_QFREEZE flag set on 2139 * sleep request. 2140 */ 2141 cam_release_devq(periph->path, 2142 /*relsim_flags*/0, 2143 /*openings*/0, 2144 /*timeout*/0, 2145 /*getcount_only*/0); 2146 2147 cam_periph_unlock(periph); 2148 } 2149} 2150 2151#endif /* _KERNEL */ 2152