ata_xpt.c revision 200218
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: head/sys/cam/ata/ata_xpt.c 200218 2009-12-07 16:23:25Z mav $"); 29 30#include <sys/param.h> 31#include <sys/bus.h> 32#include <sys/endian.h> 33#include <sys/systm.h> 34#include <sys/types.h> 35#include <sys/malloc.h> 36#include <sys/kernel.h> 37#include <sys/time.h> 38#include <sys/conf.h> 39#include <sys/fcntl.h> 40#include <sys/md5.h> 41#include <sys/interrupt.h> 42#include <sys/sbuf.h> 43 44#include <sys/lock.h> 45#include <sys/mutex.h> 46#include <sys/sysctl.h> 47 48#ifdef PC98 49#include <pc98/pc98/pc98_machdep.h> /* geometry translation */ 50#endif 51 52#include <cam/cam.h> 53#include <cam/cam_ccb.h> 54#include <cam/cam_queue.h> 55#include <cam/cam_periph.h> 56#include <cam/cam_sim.h> 57#include <cam/cam_xpt.h> 58#include <cam/cam_xpt_sim.h> 59#include <cam/cam_xpt_periph.h> 60#include <cam/cam_xpt_internal.h> 61#include <cam/cam_debug.h> 62 63#include <cam/scsi/scsi_all.h> 64#include <cam/scsi/scsi_message.h> 65#include <cam/ata/ata_all.h> 66#include <machine/stdarg.h> /* for xpt_print below */ 67#include "opt_cam.h" 68 69struct ata_quirk_entry { 70 struct scsi_inquiry_pattern inq_pat; 71 u_int8_t quirks; 72#define CAM_QUIRK_MAXTAGS 0x01 73 u_int maxtags; 74}; 75 76static periph_init_t probe_periph_init; 77 78static struct periph_driver probe_driver = 79{ 80 probe_periph_init, "aprobe", 81 TAILQ_HEAD_INITIALIZER(probe_driver.units), /* generation */ 0, 82 CAM_PERIPH_DRV_EARLY 83}; 84 85PERIPHDRIVER_DECLARE(aprobe, probe_driver); 86 87typedef enum { 88 PROBE_RESET, 89 PROBE_IDENTIFY, 90 PROBE_SETMODE, 91 PROBE_SET_MULTI, 92 PROBE_INQUIRY, 93 PROBE_FULL_INQUIRY, 94 PROBE_PM_PID, 95 PROBE_PM_PRV, 96 PROBE_INVALID 97} probe_action; 98 99static char *probe_action_text[] = { 100 "PROBE_RESET", 101 "PROBE_IDENTIFY", 102 "PROBE_SETMODE", 103 "PROBE_SET_MULTI", 104 "PROBE_INQUIRY", 105 "PROBE_FULL_INQUIRY", 106 "PROBE_PM_PID", 107 "PROBE_PM_PRV", 108 "PROBE_INVALID" 109}; 110 111#define PROBE_SET_ACTION(softc, newaction) \ 112do { \ 113 char **text; \ 114 text = probe_action_text; \ 115 CAM_DEBUG((softc)->periph->path, CAM_DEBUG_INFO, \ 116 ("Probe %s to %s\n", text[(softc)->action], \ 117 text[(newaction)])); \ 118 (softc)->action = (newaction); \ 119} while(0) 120 121typedef enum { 122 PROBE_NO_ANNOUNCE = 0x04 123} probe_flags; 124 125typedef struct { 126 TAILQ_HEAD(, ccb_hdr) request_ccbs; 127 probe_action action; 128 union ccb saved_ccb; 129 probe_flags flags; 130 u_int8_t digest[16]; 131 uint32_t pm_pid; 132 uint32_t pm_prv; 133 struct cam_periph *periph; 134} probe_softc; 135 136static struct ata_quirk_entry ata_quirk_table[] = 137{ 138 { 139 /* Default tagged queuing parameters for all devices */ 140 { 141 T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, 142 /*vendor*/"*", /*product*/"*", /*revision*/"*" 143 }, 144 /*quirks*/0, /*maxtags*/0 145 }, 146}; 147 148static const int ata_quirk_table_size = 149 sizeof(ata_quirk_table) / sizeof(*ata_quirk_table); 150 151static cam_status proberegister(struct cam_periph *periph, 152 void *arg); 153static void probeschedule(struct cam_periph *probe_periph); 154static void probestart(struct cam_periph *periph, union ccb *start_ccb); 155//static void proberequestdefaultnegotiation(struct cam_periph *periph); 156//static int proberequestbackoff(struct cam_periph *periph, 157// struct cam_ed *device); 158static void probedone(struct cam_periph *periph, union ccb *done_ccb); 159static void probecleanup(struct cam_periph *periph); 160static void ata_find_quirk(struct cam_ed *device); 161static void ata_scan_bus(struct cam_periph *periph, union ccb *ccb); 162static void ata_scan_lun(struct cam_periph *periph, 163 struct cam_path *path, cam_flags flags, 164 union ccb *ccb); 165static void xptscandone(struct cam_periph *periph, union ccb *done_ccb); 166static struct cam_ed * 167 ata_alloc_device(struct cam_eb *bus, struct cam_et *target, 168 lun_id_t lun_id); 169static void ata_device_transport(struct cam_path *path); 170static void ata_set_transfer_settings(struct ccb_trans_settings *cts, 171 struct cam_ed *device, 172 int async_update); 173static void ata_dev_async(u_int32_t async_code, 174 struct cam_eb *bus, 175 struct cam_et *target, 176 struct cam_ed *device, 177 void *async_arg); 178static void ata_action(union ccb *start_ccb); 179 180static struct xpt_xport ata_xport = { 181 .alloc_device = ata_alloc_device, 182 .action = ata_action, 183 .async = ata_dev_async, 184}; 185 186struct xpt_xport * 187ata_get_xport(void) 188{ 189 return (&ata_xport); 190} 191 192static void 193probe_periph_init() 194{ 195} 196 197static cam_status 198proberegister(struct cam_periph *periph, void *arg) 199{ 200 union ccb *request_ccb; /* CCB representing the probe request */ 201 cam_status status; 202 probe_softc *softc; 203 204 request_ccb = (union ccb *)arg; 205 if (periph == NULL) { 206 printf("proberegister: periph was NULL!!\n"); 207 return(CAM_REQ_CMP_ERR); 208 } 209 210 if (request_ccb == NULL) { 211 printf("proberegister: no probe CCB, " 212 "can't register device\n"); 213 return(CAM_REQ_CMP_ERR); 214 } 215 216 softc = (probe_softc *)malloc(sizeof(*softc), M_CAMXPT, M_NOWAIT); 217 218 if (softc == NULL) { 219 printf("proberegister: Unable to probe new device. " 220 "Unable to allocate softc\n"); 221 return(CAM_REQ_CMP_ERR); 222 } 223 TAILQ_INIT(&softc->request_ccbs); 224 TAILQ_INSERT_TAIL(&softc->request_ccbs, &request_ccb->ccb_h, 225 periph_links.tqe); 226 softc->flags = 0; 227 periph->softc = softc; 228 softc->periph = periph; 229 softc->action = PROBE_INVALID; 230 status = cam_periph_acquire(periph); 231 if (status != CAM_REQ_CMP) { 232 return (status); 233 } 234 235 236 /* 237 * Ensure we've waited at least a bus settle 238 * delay before attempting to probe the device. 239 * For HBAs that don't do bus resets, this won't make a difference. 240 */ 241 cam_periph_freeze_after_event(periph, &periph->path->bus->last_reset, 242 scsi_delay); 243 probeschedule(periph); 244 return(CAM_REQ_CMP); 245} 246 247static void 248probeschedule(struct cam_periph *periph) 249{ 250 struct ccb_pathinq cpi; 251 union ccb *ccb; 252 probe_softc *softc; 253 254 softc = (probe_softc *)periph->softc; 255 ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs); 256 257 xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 258 cpi.ccb_h.func_code = XPT_PATH_INQ; 259 xpt_action((union ccb *)&cpi); 260 261 if ((periph->path->device->flags & CAM_DEV_UNCONFIGURED) || 262 periph->path->device->protocol == PROTO_SATAPM) 263 PROBE_SET_ACTION(softc, PROBE_RESET); 264 else 265 PROBE_SET_ACTION(softc, PROBE_IDENTIFY); 266 267 if (ccb->crcn.flags & CAM_EXPECT_INQ_CHANGE) 268 softc->flags |= PROBE_NO_ANNOUNCE; 269 else 270 softc->flags &= ~PROBE_NO_ANNOUNCE; 271 272 xpt_schedule(periph, ccb->ccb_h.pinfo.priority); 273} 274 275static void 276probestart(struct cam_periph *periph, union ccb *start_ccb) 277{ 278 struct ccb_trans_settings cts; 279 struct ccb_ataio *ataio; 280 struct ccb_scsiio *csio; 281 probe_softc *softc; 282 struct cam_path *path; 283 struct ata_params *ident_buf; 284 285 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probestart\n")); 286 287 softc = (probe_softc *)periph->softc; 288 path = start_ccb->ccb_h.path; 289 ataio = &start_ccb->ataio; 290 csio = &start_ccb->csio; 291 ident_buf = &periph->path->device->ident_data; 292 293 switch (softc->action) { 294 case PROBE_RESET: 295 cam_fill_ataio(ataio, 296 0, 297 probedone, 298 /*flags*/CAM_DIR_NONE, 299 0, 300 /*data_ptr*/NULL, 301 /*dxfer_len*/0, 302 (start_ccb->ccb_h.target_id == 15 ? 3 : 15) * 1000); 303 ata_reset_cmd(ataio); 304 break; 305 case PROBE_IDENTIFY: 306 if ((periph->path->device->flags & CAM_DEV_UNCONFIGURED) == 0) { 307 /* Prepare check that it is the same device. */ 308 MD5_CTX context; 309 310 MD5Init(&context); 311 MD5Update(&context, 312 (unsigned char *)ident_buf->model, 313 sizeof(ident_buf->model)); 314 MD5Update(&context, 315 (unsigned char *)ident_buf->revision, 316 sizeof(ident_buf->revision)); 317 MD5Update(&context, 318 (unsigned char *)ident_buf->serial, 319 sizeof(ident_buf->serial)); 320 MD5Final(softc->digest, &context); 321 } 322 cam_fill_ataio(ataio, 323 1, 324 probedone, 325 /*flags*/CAM_DIR_IN, 326 0, 327 /*data_ptr*/(u_int8_t *)ident_buf, 328 /*dxfer_len*/sizeof(struct ata_params), 329 30 * 1000); 330 if (periph->path->device->protocol == PROTO_ATA) 331 ata_28bit_cmd(ataio, ATA_ATA_IDENTIFY, 0, 0, 0); 332 else 333 ata_28bit_cmd(ataio, ATA_ATAPI_IDENTIFY, 0, 0, 0); 334 break; 335 case PROBE_SETMODE: 336 { 337 int mode, wantmode; 338 339 mode = 0; 340 /* Fetch user modes from SIM. */ 341 bzero(&cts, sizeof(cts)); 342 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NORMAL); 343 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 344 cts.type = CTS_TYPE_USER_SETTINGS; 345 xpt_action((union ccb *)&cts); 346 if (path->device->transport == XPORT_ATA) { 347 if (cts.xport_specific.ata.valid & CTS_ATA_VALID_MODE) 348 mode = cts.xport_specific.ata.mode; 349 } else { 350 if (cts.xport_specific.sata.valid & CTS_SATA_VALID_MODE) 351 mode = cts.xport_specific.sata.mode; 352 } 353negotiate: 354 /* Honor device capabilities. */ 355 wantmode = mode = ata_max_mode(ident_buf, mode); 356 /* Report modes to SIM. */ 357 bzero(&cts, sizeof(cts)); 358 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NORMAL); 359 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 360 cts.type = CTS_TYPE_CURRENT_SETTINGS; 361 if (path->device->transport == XPORT_ATA) { 362 cts.xport_specific.ata.mode = mode; 363 cts.xport_specific.ata.valid = CTS_ATA_VALID_MODE; 364 } else { 365 cts.xport_specific.sata.mode = mode; 366 cts.xport_specific.sata.valid = CTS_SATA_VALID_MODE; 367 } 368 xpt_action((union ccb *)&cts); 369 /* Fetch current modes from SIM. */ 370 bzero(&cts, sizeof(cts)); 371 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NORMAL); 372 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 373 cts.type = CTS_TYPE_CURRENT_SETTINGS; 374 xpt_action((union ccb *)&cts); 375 if (path->device->transport == XPORT_ATA) { 376 if (cts.xport_specific.ata.valid & CTS_ATA_VALID_MODE) 377 mode = cts.xport_specific.ata.mode; 378 } else { 379 if (cts.xport_specific.ata.valid & CTS_SATA_VALID_MODE) 380 mode = cts.xport_specific.sata.mode; 381 } 382 /* If SIM disagree - renegotiate. */ 383 if (mode != wantmode) 384 goto negotiate; 385 cam_fill_ataio(ataio, 386 1, 387 probedone, 388 /*flags*/CAM_DIR_NONE, 389 0, 390 /*data_ptr*/NULL, 391 /*dxfer_len*/0, 392 30 * 1000); 393 ata_28bit_cmd(ataio, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode); 394 break; 395 } 396 case PROBE_SET_MULTI: 397 { 398 u_int sectors, bytecount; 399 400 bytecount = 8192; /* SATA maximum */ 401 /* Fetch user bytecount from SIM. */ 402 bzero(&cts, sizeof(cts)); 403 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NORMAL); 404 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 405 cts.type = CTS_TYPE_USER_SETTINGS; 406 xpt_action((union ccb *)&cts); 407 if (path->device->transport == XPORT_ATA) { 408 if (cts.xport_specific.ata.valid & CTS_ATA_VALID_BYTECOUNT) 409 bytecount = cts.xport_specific.ata.bytecount; 410 } else { 411 if (cts.xport_specific.sata.valid & CTS_SATA_VALID_BYTECOUNT) 412 bytecount = cts.xport_specific.sata.bytecount; 413 } 414 /* Honor device capabilities. */ 415 sectors = max(1, min(ident_buf->sectors_intr & 0xff, 416 bytecount / ata_logical_sector_size(ident_buf))); 417 /* Report bytecount to SIM. */ 418 bzero(&cts, sizeof(cts)); 419 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NORMAL); 420 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 421 cts.type = CTS_TYPE_CURRENT_SETTINGS; 422 if (path->device->transport == XPORT_ATA) { 423 cts.xport_specific.ata.bytecount = sectors * 424 ata_logical_sector_size(ident_buf); 425 cts.xport_specific.ata.valid = CTS_ATA_VALID_BYTECOUNT; 426 } else { 427 cts.xport_specific.sata.bytecount = sectors * 428 ata_logical_sector_size(ident_buf); 429 cts.xport_specific.sata.valid = CTS_SATA_VALID_BYTECOUNT; 430 } 431 xpt_action((union ccb *)&cts); 432 /* Fetch current bytecount from SIM. */ 433 bzero(&cts, sizeof(cts)); 434 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NORMAL); 435 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 436 cts.type = CTS_TYPE_CURRENT_SETTINGS; 437 xpt_action((union ccb *)&cts); 438 if (path->device->transport == XPORT_ATA) { 439 if (cts.xport_specific.ata.valid & CTS_ATA_VALID_BYTECOUNT) 440 bytecount = cts.xport_specific.ata.bytecount; 441 } else { 442 if (cts.xport_specific.sata.valid & CTS_SATA_VALID_BYTECOUNT) 443 bytecount = cts.xport_specific.sata.bytecount; 444 } 445 sectors = bytecount / ata_logical_sector_size(ident_buf); 446 447 cam_fill_ataio(ataio, 448 1, 449 probedone, 450 CAM_DIR_NONE, 451 0, 452 NULL, 453 0, 454 30*1000); 455 ata_28bit_cmd(ataio, ATA_SET_MULTI, 0, 0, sectors); 456 break; 457 } 458 case PROBE_INQUIRY: 459 { 460 u_int bytecount; 461 462 bytecount = 8192; /* SATA maximum */ 463 /* Fetch user bytecount from SIM. */ 464 bzero(&cts, sizeof(cts)); 465 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NORMAL); 466 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 467 cts.type = CTS_TYPE_USER_SETTINGS; 468 xpt_action((union ccb *)&cts); 469 if (path->device->transport == XPORT_ATA) { 470 if (cts.xport_specific.ata.valid & CTS_ATA_VALID_BYTECOUNT) 471 bytecount = cts.xport_specific.ata.bytecount; 472 } else { 473 if (cts.xport_specific.sata.valid & CTS_SATA_VALID_BYTECOUNT) 474 bytecount = cts.xport_specific.sata.bytecount; 475 } 476 /* Honor device capabilities. */ 477 bytecount &= ~1; 478 bytecount = max(2, min(65534, bytecount)); 479 if (ident_buf->satacapabilities != 0x0000 && 480 ident_buf->satacapabilities != 0xffff) { 481 bytecount = min(8192, bytecount); 482 } 483 /* Report bytecount to SIM. */ 484 bzero(&cts, sizeof(cts)); 485 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NORMAL); 486 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 487 cts.type = CTS_TYPE_CURRENT_SETTINGS; 488 if (path->device->transport == XPORT_ATA) { 489 cts.xport_specific.ata.bytecount = bytecount; 490 cts.xport_specific.ata.valid = CTS_ATA_VALID_BYTECOUNT; 491 } else { 492 cts.xport_specific.sata.bytecount = bytecount; 493 cts.xport_specific.sata.valid = CTS_SATA_VALID_BYTECOUNT; 494 } 495 xpt_action((union ccb *)&cts); 496 /* FALLTHROUGH */ 497 } 498 case PROBE_FULL_INQUIRY: 499 { 500 u_int inquiry_len; 501 struct scsi_inquiry_data *inq_buf = 502 &periph->path->device->inq_data; 503 504 if (softc->action == PROBE_INQUIRY) 505 inquiry_len = SHORT_INQUIRY_LENGTH; 506 else 507 inquiry_len = SID_ADDITIONAL_LENGTH(inq_buf); 508 /* 509 * Some parallel SCSI devices fail to send an 510 * ignore wide residue message when dealing with 511 * odd length inquiry requests. Round up to be 512 * safe. 513 */ 514 inquiry_len = roundup2(inquiry_len, 2); 515 scsi_inquiry(csio, 516 /*retries*/1, 517 probedone, 518 MSG_SIMPLE_Q_TAG, 519 (u_int8_t *)inq_buf, 520 inquiry_len, 521 /*evpd*/FALSE, 522 /*page_code*/0, 523 SSD_MIN_SIZE, 524 /*timeout*/60 * 1000); 525 break; 526 } 527 case PROBE_PM_PID: 528 cam_fill_ataio(ataio, 529 1, 530 probedone, 531 /*flags*/CAM_DIR_NONE, 532 0, 533 /*data_ptr*/NULL, 534 /*dxfer_len*/0, 535 10 * 1000); 536 ata_pm_read_cmd(ataio, 0, 15); 537 break; 538 case PROBE_PM_PRV: 539 cam_fill_ataio(ataio, 540 1, 541 probedone, 542 /*flags*/CAM_DIR_NONE, 543 0, 544 /*data_ptr*/NULL, 545 /*dxfer_len*/0, 546 10 * 1000); 547 ata_pm_read_cmd(ataio, 1, 15); 548 break; 549 case PROBE_INVALID: 550 CAM_DEBUG(path, CAM_DEBUG_INFO, 551 ("probestart: invalid action state\n")); 552 default: 553 break; 554 } 555 xpt_action(start_ccb); 556} 557#if 0 558static void 559proberequestdefaultnegotiation(struct cam_periph *periph) 560{ 561 struct ccb_trans_settings cts; 562 563 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 564 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 565 cts.type = CTS_TYPE_USER_SETTINGS; 566 xpt_action((union ccb *)&cts); 567 if ((cts.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 568 return; 569 } 570 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 571 cts.type = CTS_TYPE_CURRENT_SETTINGS; 572 xpt_action((union ccb *)&cts); 573} 574 575/* 576 * Backoff Negotiation Code- only pertinent for SPI devices. 577 */ 578static int 579proberequestbackoff(struct cam_periph *periph, struct cam_ed *device) 580{ 581 struct ccb_trans_settings cts; 582 struct ccb_trans_settings_spi *spi; 583 584 memset(&cts, 0, sizeof (cts)); 585 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 586 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 587 cts.type = CTS_TYPE_CURRENT_SETTINGS; 588 xpt_action((union ccb *)&cts); 589 if ((cts.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 590 if (bootverbose) { 591 xpt_print(periph->path, 592 "failed to get current device settings\n"); 593 } 594 return (0); 595 } 596 if (cts.transport != XPORT_SPI) { 597 if (bootverbose) { 598 xpt_print(periph->path, "not SPI transport\n"); 599 } 600 return (0); 601 } 602 spi = &cts.xport_specific.spi; 603 604 /* 605 * We cannot renegotiate sync rate if we don't have one. 606 */ 607 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) { 608 if (bootverbose) { 609 xpt_print(periph->path, "no sync rate known\n"); 610 } 611 return (0); 612 } 613 614 /* 615 * We'll assert that we don't have to touch PPR options- the 616 * SIM will see what we do with period and offset and adjust 617 * the PPR options as appropriate. 618 */ 619 620 /* 621 * A sync rate with unknown or zero offset is nonsensical. 622 * A sync period of zero means Async. 623 */ 624 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0 625 || spi->sync_offset == 0 || spi->sync_period == 0) { 626 if (bootverbose) { 627 xpt_print(periph->path, "no sync rate available\n"); 628 } 629 return (0); 630 } 631 632 if (device->flags & CAM_DEV_DV_HIT_BOTTOM) { 633 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, 634 ("hit async: giving up on DV\n")); 635 return (0); 636 } 637 638 639 /* 640 * Jump sync_period up by one, but stop at 5MHz and fall back to Async. 641 * We don't try to remember 'last' settings to see if the SIM actually 642 * gets into the speed we want to set. We check on the SIM telling 643 * us that a requested speed is bad, but otherwise don't try and 644 * check the speed due to the asynchronous and handshake nature 645 * of speed setting. 646 */ 647 spi->valid = CTS_SPI_VALID_SYNC_RATE | CTS_SPI_VALID_SYNC_OFFSET; 648 for (;;) { 649 spi->sync_period++; 650 if (spi->sync_period >= 0xf) { 651 spi->sync_period = 0; 652 spi->sync_offset = 0; 653 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, 654 ("setting to async for DV\n")); 655 /* 656 * Once we hit async, we don't want to try 657 * any more settings. 658 */ 659 device->flags |= CAM_DEV_DV_HIT_BOTTOM; 660 } else if (bootverbose) { 661 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, 662 ("DV: period 0x%x\n", spi->sync_period)); 663 printf("setting period to 0x%x\n", spi->sync_period); 664 } 665 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 666 cts.type = CTS_TYPE_CURRENT_SETTINGS; 667 xpt_action((union ccb *)&cts); 668 if ((cts.ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 669 break; 670 } 671 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, 672 ("DV: failed to set period 0x%x\n", spi->sync_period)); 673 if (spi->sync_period == 0) { 674 return (0); 675 } 676 } 677 return (1); 678} 679#endif 680static void 681probedone(struct cam_periph *periph, union ccb *done_ccb) 682{ 683 struct ccb_trans_settings cts; 684 struct ata_params *ident_buf; 685 probe_softc *softc; 686 struct cam_path *path; 687 u_int32_t priority; 688 int found = 1; 689 690 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probedone\n")); 691 692 softc = (probe_softc *)periph->softc; 693 path = done_ccb->ccb_h.path; 694 priority = done_ccb->ccb_h.pinfo.priority; 695 ident_buf = &path->device->ident_data; 696 697 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 698device_fail: if (cam_periph_error(done_ccb, 0, 0, 699 &softc->saved_ccb) == ERESTART) { 700 return; 701 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 702 /* Don't wedge the queue */ 703 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 704 /*run_queue*/TRUE); 705 } 706 /* Old PIO2 devices may not support mode setting. */ 707 if (softc->action == PROBE_SETMODE && 708 ata_max_pmode(ident_buf) <= ATA_PIO2 && 709 (ident_buf->capabilities1 & ATA_SUPPORT_IORDY) == 0) 710 goto noerror; 711 /* 712 * If we get to this point, we got an error status back 713 * from the inquiry and the error status doesn't require 714 * automatically retrying the command. Therefore, the 715 * inquiry failed. If we had inquiry information before 716 * for this device, but this latest inquiry command failed, 717 * the device has probably gone away. If this device isn't 718 * already marked unconfigured, notify the peripheral 719 * drivers that this device is no more. 720 */ 721 if ((path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 722 xpt_async(AC_LOST_DEVICE, path, NULL); 723 found = 0; 724 goto done; 725 } 726noerror: 727 switch (softc->action) { 728 case PROBE_RESET: 729 { 730 int sign = (done_ccb->ataio.res.lba_high << 8) + 731 done_ccb->ataio.res.lba_mid; 732 if (bootverbose) 733 xpt_print(path, "SIGNATURE: %04x\n", sign); 734 if (sign == 0x0000 && 735 done_ccb->ccb_h.target_id != 15) { 736 path->device->protocol = PROTO_ATA; 737 PROBE_SET_ACTION(softc, PROBE_IDENTIFY); 738 } else if (sign == 0x9669 && 739 done_ccb->ccb_h.target_id == 15) { 740 /* Report SIM that PM is present. */ 741 bzero(&cts, sizeof(cts)); 742 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NORMAL); 743 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 744 cts.type = CTS_TYPE_CURRENT_SETTINGS; 745 cts.xport_specific.sata.pm_present = 1; 746 cts.xport_specific.sata.valid = CTS_SATA_VALID_PM; 747 xpt_action((union ccb *)&cts); 748 path->device->protocol = PROTO_SATAPM; 749 PROBE_SET_ACTION(softc, PROBE_PM_PID); 750 } else if (sign == 0xeb14 && 751 done_ccb->ccb_h.target_id != 15) { 752 path->device->protocol = PROTO_SCSI; 753 PROBE_SET_ACTION(softc, PROBE_IDENTIFY); 754 } else { 755 if (done_ccb->ccb_h.target_id != 15) { 756 xpt_print(path, 757 "Unexpected signature 0x%04x\n", sign); 758 } 759 goto device_fail; 760 } 761 xpt_release_ccb(done_ccb); 762 xpt_schedule(periph, priority); 763 return; 764 } 765 case PROBE_IDENTIFY: 766 { 767 int16_t *ptr; 768 769 for (ptr = (int16_t *)ident_buf; 770 ptr < (int16_t *)ident_buf + sizeof(struct ata_params)/2; ptr++) { 771 *ptr = le16toh(*ptr); 772 } 773 if (strncmp(ident_buf->model, "FX", 2) && 774 strncmp(ident_buf->model, "NEC", 3) && 775 strncmp(ident_buf->model, "Pioneer", 7) && 776 strncmp(ident_buf->model, "SHARP", 5)) { 777 ata_bswap(ident_buf->model, sizeof(ident_buf->model)); 778 ata_bswap(ident_buf->revision, sizeof(ident_buf->revision)); 779 ata_bswap(ident_buf->serial, sizeof(ident_buf->serial)); 780 } 781 ata_btrim(ident_buf->model, sizeof(ident_buf->model)); 782 ata_bpack(ident_buf->model, ident_buf->model, sizeof(ident_buf->model)); 783 ata_btrim(ident_buf->revision, sizeof(ident_buf->revision)); 784 ata_bpack(ident_buf->revision, ident_buf->revision, sizeof(ident_buf->revision)); 785 ata_btrim(ident_buf->serial, sizeof(ident_buf->serial)); 786 ata_bpack(ident_buf->serial, ident_buf->serial, sizeof(ident_buf->serial)); 787 788 if ((periph->path->device->flags & CAM_DEV_UNCONFIGURED) == 0) { 789 /* Check that it is the same device. */ 790 MD5_CTX context; 791 u_int8_t digest[16]; 792 793 MD5Init(&context); 794 MD5Update(&context, 795 (unsigned char *)ident_buf->model, 796 sizeof(ident_buf->model)); 797 MD5Update(&context, 798 (unsigned char *)ident_buf->revision, 799 sizeof(ident_buf->revision)); 800 MD5Update(&context, 801 (unsigned char *)ident_buf->serial, 802 sizeof(ident_buf->serial)); 803 MD5Final(digest, &context); 804 if (bcmp(digest, softc->digest, sizeof(digest))) { 805 /* Device changed. */ 806 xpt_async(AC_LOST_DEVICE, path, NULL); 807 } 808 } else { 809 /* Clean up from previous instance of this device */ 810 if (path->device->serial_num != NULL) { 811 free(path->device->serial_num, M_CAMXPT); 812 path->device->serial_num = NULL; 813 path->device->serial_num_len = 0; 814 } 815 path->device->serial_num = 816 (u_int8_t *)malloc((sizeof(ident_buf->serial) + 1), 817 M_CAMXPT, M_NOWAIT); 818 if (path->device->serial_num != NULL) { 819 bcopy(ident_buf->serial, 820 path->device->serial_num, 821 sizeof(ident_buf->serial)); 822 path->device->serial_num[sizeof(ident_buf->serial)] 823 = '\0'; 824 path->device->serial_num_len = 825 strlen(path->device->serial_num); 826 } 827 828 path->device->flags |= CAM_DEV_IDENTIFY_DATA_VALID; 829 } 830 if (ident_buf->satacapabilities & ATA_SUPPORT_NCQ) { 831 path->device->mintags = path->device->maxtags = 832 ATA_QUEUE_LEN(ident_buf->queue) + 1; 833 } 834 ata_find_quirk(path->device); 835 if (path->device->mintags != 0 && 836 path->bus->sim->max_tagged_dev_openings != 0) { 837 /* Report SIM which tags are allowed. */ 838 bzero(&cts, sizeof(cts)); 839 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NORMAL); 840 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 841 cts.type = CTS_TYPE_CURRENT_SETTINGS; 842 cts.xport_specific.sata.tags = path->device->maxtags; 843 cts.xport_specific.sata.valid = CTS_SATA_VALID_TAGS; 844 xpt_action((union ccb *)&cts); 845 /* Reconfigure queues for tagged queueing. */ 846 xpt_start_tags(path); 847 } 848 ata_device_transport(path); 849 PROBE_SET_ACTION(softc, PROBE_SETMODE); 850 xpt_release_ccb(done_ccb); 851 xpt_schedule(periph, priority); 852 return; 853 } 854 case PROBE_SETMODE: 855 if (path->device->protocol == PROTO_ATA) { 856 PROBE_SET_ACTION(softc, PROBE_SET_MULTI); 857 } else { 858 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 859 } 860 xpt_release_ccb(done_ccb); 861 xpt_schedule(periph, priority); 862 return; 863 case PROBE_SET_MULTI: 864 if (periph->path->device->flags & CAM_DEV_UNCONFIGURED) { 865 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 866 xpt_acquire_device(path->device); 867 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 868 xpt_action(done_ccb); 869 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, 870 done_ccb); 871 } 872 break; 873 case PROBE_INQUIRY: 874 case PROBE_FULL_INQUIRY: 875 { 876 struct scsi_inquiry_data *inq_buf; 877 u_int8_t periph_qual, len; 878 879 path->device->flags |= CAM_DEV_INQUIRY_DATA_VALID; 880 inq_buf = &path->device->inq_data; 881 882 periph_qual = SID_QUAL(inq_buf); 883 884 if (periph_qual != SID_QUAL_LU_CONNECTED) 885 break; 886 887 /* 888 * We conservatively request only 889 * SHORT_INQUIRY_LEN bytes of inquiry 890 * information during our first try 891 * at sending an INQUIRY. If the device 892 * has more information to give, 893 * perform a second request specifying 894 * the amount of information the device 895 * is willing to give. 896 */ 897 len = inq_buf->additional_length 898 + offsetof(struct scsi_inquiry_data, additional_length) + 1; 899 if (softc->action == PROBE_INQUIRY 900 && len > SHORT_INQUIRY_LENGTH) { 901 PROBE_SET_ACTION(softc, PROBE_FULL_INQUIRY); 902 xpt_release_ccb(done_ccb); 903 xpt_schedule(periph, priority); 904 return; 905 } 906 907 ata_device_transport(path); 908 if (periph->path->device->flags & CAM_DEV_UNCONFIGURED) { 909 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 910 xpt_acquire_device(path->device); 911 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 912 xpt_action(done_ccb); 913 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, done_ccb); 914 } 915 break; 916 } 917 case PROBE_PM_PID: 918 if ((path->device->flags & CAM_DEV_IDENTIFY_DATA_VALID) == 0) 919 bzero(ident_buf, sizeof(*ident_buf)); 920 softc->pm_pid = (done_ccb->ataio.res.lba_high << 24) + 921 (done_ccb->ataio.res.lba_mid << 16) + 922 (done_ccb->ataio.res.lba_low << 8) + 923 done_ccb->ataio.res.sector_count; 924 ((uint32_t *)ident_buf)[0] = softc->pm_pid; 925 snprintf(ident_buf->model, sizeof(ident_buf->model), 926 "Port Multiplier %08x", softc->pm_pid); 927 PROBE_SET_ACTION(softc, PROBE_PM_PRV); 928 xpt_release_ccb(done_ccb); 929 xpt_schedule(periph, priority); 930 return; 931 case PROBE_PM_PRV: 932 softc->pm_prv = (done_ccb->ataio.res.lba_high << 24) + 933 (done_ccb->ataio.res.lba_mid << 16) + 934 (done_ccb->ataio.res.lba_low << 8) + 935 done_ccb->ataio.res.sector_count; 936 ((uint32_t *)ident_buf)[1] = softc->pm_prv; 937 snprintf(ident_buf->revision, sizeof(ident_buf->revision), 938 "%04x", softc->pm_prv); 939 path->device->flags |= CAM_DEV_IDENTIFY_DATA_VALID; 940 if (periph->path->device->flags & CAM_DEV_UNCONFIGURED) { 941 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 942 xpt_acquire_device(path->device); 943 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 944 xpt_action(done_ccb); 945 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, 946 done_ccb); 947 } else { 948 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 949 xpt_action(done_ccb); 950 xpt_async(AC_SCSI_AEN, done_ccb->ccb_h.path, done_ccb); 951 } 952 break; 953 case PROBE_INVALID: 954 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_INFO, 955 ("probedone: invalid action state\n")); 956 default: 957 break; 958 } 959done: 960 xpt_release_ccb(done_ccb); 961 done_ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs); 962 TAILQ_REMOVE(&softc->request_ccbs, &done_ccb->ccb_h, periph_links.tqe); 963 done_ccb->ccb_h.status = CAM_REQ_CMP; 964 done_ccb->ccb_h.ppriv_field1 = found; 965 xpt_done(done_ccb); 966 if (TAILQ_FIRST(&softc->request_ccbs) == NULL) { 967 cam_periph_invalidate(periph); 968 cam_periph_release_locked(periph); 969 } else { 970 probeschedule(periph); 971 } 972} 973 974static void 975probecleanup(struct cam_periph *periph) 976{ 977 free(periph->softc, M_CAMXPT); 978} 979 980static void 981ata_find_quirk(struct cam_ed *device) 982{ 983 struct ata_quirk_entry *quirk; 984 caddr_t match; 985 986 match = cam_quirkmatch((caddr_t)&device->ident_data, 987 (caddr_t)ata_quirk_table, 988 ata_quirk_table_size, 989 sizeof(*ata_quirk_table), ata_identify_match); 990 991 if (match == NULL) 992 panic("xpt_find_quirk: device didn't match wildcard entry!!"); 993 994 quirk = (struct ata_quirk_entry *)match; 995 device->quirk = quirk; 996 if (quirk->quirks & CAM_QUIRK_MAXTAGS) 997 device->mintags = device->maxtags = quirk->maxtags; 998} 999 1000typedef struct { 1001 union ccb *request_ccb; 1002 struct ccb_pathinq *cpi; 1003 int counter; 1004 int found; 1005} ata_scan_bus_info; 1006 1007/* 1008 * To start a scan, request_ccb is an XPT_SCAN_BUS ccb. 1009 * As the scan progresses, xpt_scan_bus is used as the 1010 * callback on completion function. 1011 */ 1012static void 1013ata_scan_bus(struct cam_periph *periph, union ccb *request_ccb) 1014{ 1015 struct cam_path *path; 1016 ata_scan_bus_info *scan_info; 1017 union ccb *work_ccb; 1018 cam_status status; 1019 1020 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE, 1021 ("xpt_scan_bus\n")); 1022 switch (request_ccb->ccb_h.func_code) { 1023 case XPT_SCAN_BUS: 1024 /* Find out the characteristics of the bus */ 1025 work_ccb = xpt_alloc_ccb_nowait(); 1026 if (work_ccb == NULL) { 1027 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 1028 xpt_done(request_ccb); 1029 return; 1030 } 1031 xpt_setup_ccb(&work_ccb->ccb_h, request_ccb->ccb_h.path, 1032 request_ccb->ccb_h.pinfo.priority); 1033 work_ccb->ccb_h.func_code = XPT_PATH_INQ; 1034 xpt_action(work_ccb); 1035 if (work_ccb->ccb_h.status != CAM_REQ_CMP) { 1036 request_ccb->ccb_h.status = work_ccb->ccb_h.status; 1037 xpt_free_ccb(work_ccb); 1038 xpt_done(request_ccb); 1039 return; 1040 } 1041 1042 /* Save some state for use while we probe for devices */ 1043 scan_info = (ata_scan_bus_info *) 1044 malloc(sizeof(ata_scan_bus_info), M_CAMXPT, M_NOWAIT); 1045 if (scan_info == NULL) { 1046 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 1047 xpt_done(request_ccb); 1048 return; 1049 } 1050 scan_info->request_ccb = request_ccb; 1051 scan_info->cpi = &work_ccb->cpi; 1052 if (scan_info->cpi->transport == XPORT_ATA) 1053 scan_info->found = 0x0003; 1054 else 1055 scan_info->found = 0x8001; 1056 scan_info->counter = 0; 1057 /* If PM supported, probe it first. */ 1058 if (scan_info->cpi->hba_inquiry & PI_SATAPM) 1059 scan_info->counter = 15; 1060 1061 work_ccb = xpt_alloc_ccb_nowait(); 1062 if (work_ccb == NULL) { 1063 free(scan_info, M_CAMXPT); 1064 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 1065 xpt_done(request_ccb); 1066 break; 1067 } 1068 goto scan_next; 1069 case XPT_SCAN_LUN: 1070 work_ccb = request_ccb; 1071 /* Reuse the same CCB to query if a device was really found */ 1072 scan_info = (ata_scan_bus_info *)work_ccb->ccb_h.ppriv_ptr0; 1073 /* Free the current request path- we're done with it. */ 1074 xpt_free_path(work_ccb->ccb_h.path); 1075 /* If there is PMP... */ 1076 if (scan_info->counter == 15) { 1077 if (work_ccb->ccb_h.ppriv_field1 != 0) { 1078 /* everything else willbe probed by it */ 1079 scan_info->found = 0x8000; 1080 } else { 1081 struct ccb_trans_settings cts; 1082 1083 /* Report SIM that PM is absent. */ 1084 bzero(&cts, sizeof(cts)); 1085 xpt_setup_ccb(&cts.ccb_h, 1086 scan_info->request_ccb->ccb_h.path, 1); 1087 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1088 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1089 cts.xport_specific.sata.pm_present = 0; 1090 cts.xport_specific.sata.valid = CTS_SATA_VALID_PM; 1091 xpt_action((union ccb *)&cts); 1092 } 1093 } 1094take_next: 1095 /* Take next device. Wrap from 15 (PM) to 0. */ 1096 scan_info->counter = (scan_info->counter + 1 ) & 0x0f; 1097 if (scan_info->counter > scan_info->cpi->max_target - 1098 ((scan_info->cpi->hba_inquiry & PI_SATAPM) ? 1 : 0)) { 1099 xpt_free_ccb(work_ccb); 1100 xpt_free_ccb((union ccb *)scan_info->cpi); 1101 request_ccb = scan_info->request_ccb; 1102 free(scan_info, M_CAMXPT); 1103 request_ccb->ccb_h.status = CAM_REQ_CMP; 1104 xpt_done(request_ccb); 1105 break; 1106 } 1107scan_next: 1108 if ((scan_info->found & (1 << scan_info->counter)) == 0) 1109 goto take_next; 1110 status = xpt_create_path(&path, xpt_periph, 1111 scan_info->request_ccb->ccb_h.path_id, 1112 scan_info->counter, 0); 1113 if (status != CAM_REQ_CMP) { 1114 printf("xpt_scan_bus: xpt_create_path failed" 1115 " with status %#x, bus scan halted\n", 1116 status); 1117 xpt_free_ccb(work_ccb); 1118 xpt_free_ccb((union ccb *)scan_info->cpi); 1119 request_ccb = scan_info->request_ccb; 1120 free(scan_info, M_CAMXPT); 1121 request_ccb->ccb_h.status = status; 1122 xpt_done(request_ccb); 1123 break; 1124 } 1125 xpt_setup_ccb(&work_ccb->ccb_h, path, 1126 scan_info->request_ccb->ccb_h.pinfo.priority); 1127 work_ccb->ccb_h.func_code = XPT_SCAN_LUN; 1128 work_ccb->ccb_h.cbfcnp = ata_scan_bus; 1129 work_ccb->ccb_h.ppriv_ptr0 = scan_info; 1130 work_ccb->crcn.flags = scan_info->request_ccb->crcn.flags; 1131 xpt_action(work_ccb); 1132 break; 1133 default: 1134 break; 1135 } 1136} 1137 1138static void 1139ata_scan_lun(struct cam_periph *periph, struct cam_path *path, 1140 cam_flags flags, union ccb *request_ccb) 1141{ 1142 struct ccb_pathinq cpi; 1143 cam_status status; 1144 struct cam_path *new_path; 1145 struct cam_periph *old_periph; 1146 1147 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE, 1148 ("xpt_scan_lun\n")); 1149 1150 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NORMAL); 1151 cpi.ccb_h.func_code = XPT_PATH_INQ; 1152 xpt_action((union ccb *)&cpi); 1153 1154 if (cpi.ccb_h.status != CAM_REQ_CMP) { 1155 if (request_ccb != NULL) { 1156 request_ccb->ccb_h.status = cpi.ccb_h.status; 1157 xpt_done(request_ccb); 1158 } 1159 return; 1160 } 1161 1162 if (request_ccb == NULL) { 1163 request_ccb = malloc(sizeof(union ccb), M_CAMXPT, M_NOWAIT); 1164 if (request_ccb == NULL) { 1165 xpt_print(path, "xpt_scan_lun: can't allocate CCB, " 1166 "can't continue\n"); 1167 return; 1168 } 1169 new_path = malloc(sizeof(*new_path), M_CAMXPT, M_NOWAIT); 1170 if (new_path == NULL) { 1171 xpt_print(path, "xpt_scan_lun: can't allocate path, " 1172 "can't continue\n"); 1173 free(request_ccb, M_CAMXPT); 1174 return; 1175 } 1176 status = xpt_compile_path(new_path, xpt_periph, 1177 path->bus->path_id, 1178 path->target->target_id, 1179 path->device->lun_id); 1180 1181 if (status != CAM_REQ_CMP) { 1182 xpt_print(path, "xpt_scan_lun: can't compile path, " 1183 "can't continue\n"); 1184 free(request_ccb, M_CAMXPT); 1185 free(new_path, M_CAMXPT); 1186 return; 1187 } 1188 xpt_setup_ccb(&request_ccb->ccb_h, new_path, CAM_PRIORITY_NORMAL); 1189 request_ccb->ccb_h.cbfcnp = xptscandone; 1190 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 1191 request_ccb->crcn.flags = flags; 1192 } 1193 1194 if ((old_periph = cam_periph_find(path, "aprobe")) != NULL) { 1195 probe_softc *softc; 1196 1197 softc = (probe_softc *)old_periph->softc; 1198 TAILQ_INSERT_TAIL(&softc->request_ccbs, &request_ccb->ccb_h, 1199 periph_links.tqe); 1200 } else { 1201 status = cam_periph_alloc(proberegister, NULL, probecleanup, 1202 probestart, "aprobe", 1203 CAM_PERIPH_BIO, 1204 request_ccb->ccb_h.path, NULL, 0, 1205 request_ccb); 1206 1207 if (status != CAM_REQ_CMP) { 1208 xpt_print(path, "xpt_scan_lun: cam_alloc_periph " 1209 "returned an error, can't continue probe\n"); 1210 request_ccb->ccb_h.status = status; 1211 xpt_done(request_ccb); 1212 } 1213 } 1214} 1215 1216static void 1217xptscandone(struct cam_periph *periph, union ccb *done_ccb) 1218{ 1219 xpt_release_path(done_ccb->ccb_h.path); 1220 free(done_ccb->ccb_h.path, M_CAMXPT); 1221 free(done_ccb, M_CAMXPT); 1222} 1223 1224static struct cam_ed * 1225ata_alloc_device(struct cam_eb *bus, struct cam_et *target, lun_id_t lun_id) 1226{ 1227 struct cam_path path; 1228 struct ata_quirk_entry *quirk; 1229 struct cam_ed *device; 1230 struct cam_ed *cur_device; 1231 1232 device = xpt_alloc_device(bus, target, lun_id); 1233 if (device == NULL) 1234 return (NULL); 1235 1236 /* 1237 * Take the default quirk entry until we have inquiry 1238 * data and can determine a better quirk to use. 1239 */ 1240 quirk = &ata_quirk_table[ata_quirk_table_size - 1]; 1241 device->quirk = (void *)quirk; 1242 device->mintags = 0; 1243 device->maxtags = 0; 1244 bzero(&device->inq_data, sizeof(device->inq_data)); 1245 device->inq_flags = 0; 1246 device->queue_flags = 0; 1247 device->serial_num = NULL; 1248 device->serial_num_len = 0; 1249 1250 /* 1251 * XXX should be limited by number of CCBs this bus can 1252 * do. 1253 */ 1254 bus->sim->max_ccbs += device->ccbq.devq_openings; 1255 /* Insertion sort into our target's device list */ 1256 cur_device = TAILQ_FIRST(&target->ed_entries); 1257 while (cur_device != NULL && cur_device->lun_id < lun_id) 1258 cur_device = TAILQ_NEXT(cur_device, links); 1259 if (cur_device != NULL) { 1260 TAILQ_INSERT_BEFORE(cur_device, device, links); 1261 } else { 1262 TAILQ_INSERT_TAIL(&target->ed_entries, device, links); 1263 } 1264 target->generation++; 1265 if (lun_id != CAM_LUN_WILDCARD) { 1266 xpt_compile_path(&path, 1267 NULL, 1268 bus->path_id, 1269 target->target_id, 1270 lun_id); 1271 ata_device_transport(&path); 1272 xpt_release_path(&path); 1273 } 1274 1275 return (device); 1276} 1277 1278static void 1279ata_device_transport(struct cam_path *path) 1280{ 1281 struct ccb_pathinq cpi; 1282 struct ccb_trans_settings cts; 1283 struct scsi_inquiry_data *inq_buf = NULL; 1284 struct ata_params *ident_buf = NULL; 1285 1286 /* Get transport information from the SIM */ 1287 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NORMAL); 1288 cpi.ccb_h.func_code = XPT_PATH_INQ; 1289 xpt_action((union ccb *)&cpi); 1290 1291 path->device->transport = cpi.transport; 1292 if ((path->device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0) 1293 inq_buf = &path->device->inq_data; 1294 if ((path->device->flags & CAM_DEV_IDENTIFY_DATA_VALID) != 0) 1295 ident_buf = &path->device->ident_data; 1296 if (path->device->protocol == PROTO_ATA) { 1297 path->device->protocol_version = ident_buf ? 1298 ata_version(ident_buf->version_major) : cpi.protocol_version; 1299 } else if (path->device->protocol == PROTO_SCSI) { 1300 path->device->protocol_version = inq_buf ? 1301 SID_ANSI_REV(inq_buf) : cpi.protocol_version; 1302 } 1303 path->device->transport_version = ident_buf ? 1304 ata_version(ident_buf->version_major) : cpi.transport_version; 1305 1306 /* Tell the controller what we think */ 1307 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NORMAL); 1308 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1309 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1310 cts.transport = path->device->transport; 1311 cts.transport_version = path->device->transport_version; 1312 cts.protocol = path->device->protocol; 1313 cts.protocol_version = path->device->protocol_version; 1314 cts.proto_specific.valid = 0; 1315 cts.xport_specific.valid = 0; 1316 xpt_action((union ccb *)&cts); 1317} 1318 1319static void 1320ata_action(union ccb *start_ccb) 1321{ 1322 1323 switch (start_ccb->ccb_h.func_code) { 1324 case XPT_SET_TRAN_SETTINGS: 1325 { 1326 ata_set_transfer_settings(&start_ccb->cts, 1327 start_ccb->ccb_h.path->device, 1328 /*async_update*/FALSE); 1329 break; 1330 } 1331 case XPT_SCAN_BUS: 1332 ata_scan_bus(start_ccb->ccb_h.path->periph, start_ccb); 1333 break; 1334 case XPT_SCAN_LUN: 1335 ata_scan_lun(start_ccb->ccb_h.path->periph, 1336 start_ccb->ccb_h.path, start_ccb->crcn.flags, 1337 start_ccb); 1338 break; 1339 case XPT_GET_TRAN_SETTINGS: 1340 { 1341 struct cam_sim *sim; 1342 1343 sim = start_ccb->ccb_h.path->bus->sim; 1344 (*(sim->sim_action))(sim, start_ccb); 1345 break; 1346 } 1347 default: 1348 xpt_action_default(start_ccb); 1349 break; 1350 } 1351} 1352 1353static void 1354ata_set_transfer_settings(struct ccb_trans_settings *cts, struct cam_ed *device, 1355 int async_update) 1356{ 1357 struct ccb_pathinq cpi; 1358 struct ccb_trans_settings cur_cts; 1359 struct ccb_trans_settings_scsi *scsi; 1360 struct ccb_trans_settings_scsi *cur_scsi; 1361 struct cam_sim *sim; 1362 struct scsi_inquiry_data *inq_data; 1363 1364 if (device == NULL) { 1365 cts->ccb_h.status = CAM_PATH_INVALID; 1366 xpt_done((union ccb *)cts); 1367 return; 1368 } 1369 1370 if (cts->protocol == PROTO_UNKNOWN 1371 || cts->protocol == PROTO_UNSPECIFIED) { 1372 cts->protocol = device->protocol; 1373 cts->protocol_version = device->protocol_version; 1374 } 1375 1376 if (cts->protocol_version == PROTO_VERSION_UNKNOWN 1377 || cts->protocol_version == PROTO_VERSION_UNSPECIFIED) 1378 cts->protocol_version = device->protocol_version; 1379 1380 if (cts->protocol != device->protocol) { 1381 xpt_print(cts->ccb_h.path, "Uninitialized Protocol %x:%x?\n", 1382 cts->protocol, device->protocol); 1383 cts->protocol = device->protocol; 1384 } 1385 1386 if (cts->protocol_version > device->protocol_version) { 1387 if (bootverbose) { 1388 xpt_print(cts->ccb_h.path, "Down reving Protocol " 1389 "Version from %d to %d?\n", cts->protocol_version, 1390 device->protocol_version); 1391 } 1392 cts->protocol_version = device->protocol_version; 1393 } 1394 1395 if (cts->transport == XPORT_UNKNOWN 1396 || cts->transport == XPORT_UNSPECIFIED) { 1397 cts->transport = device->transport; 1398 cts->transport_version = device->transport_version; 1399 } 1400 1401 if (cts->transport_version == XPORT_VERSION_UNKNOWN 1402 || cts->transport_version == XPORT_VERSION_UNSPECIFIED) 1403 cts->transport_version = device->transport_version; 1404 1405 if (cts->transport != device->transport) { 1406 xpt_print(cts->ccb_h.path, "Uninitialized Transport %x:%x?\n", 1407 cts->transport, device->transport); 1408 cts->transport = device->transport; 1409 } 1410 1411 if (cts->transport_version > device->transport_version) { 1412 if (bootverbose) { 1413 xpt_print(cts->ccb_h.path, "Down reving Transport " 1414 "Version from %d to %d?\n", cts->transport_version, 1415 device->transport_version); 1416 } 1417 cts->transport_version = device->transport_version; 1418 } 1419 1420 sim = cts->ccb_h.path->bus->sim; 1421 1422 /* 1423 * Nothing more of interest to do unless 1424 * this is a device connected via the 1425 * SCSI protocol. 1426 */ 1427 if (cts->protocol != PROTO_SCSI) { 1428 if (async_update == FALSE) 1429 (*(sim->sim_action))(sim, (union ccb *)cts); 1430 return; 1431 } 1432 1433 inq_data = &device->inq_data; 1434 scsi = &cts->proto_specific.scsi; 1435 xpt_setup_ccb(&cpi.ccb_h, cts->ccb_h.path, CAM_PRIORITY_NORMAL); 1436 cpi.ccb_h.func_code = XPT_PATH_INQ; 1437 xpt_action((union ccb *)&cpi); 1438 1439 /* SCSI specific sanity checking */ 1440 if ((cpi.hba_inquiry & PI_TAG_ABLE) == 0 1441 || (INQ_DATA_TQ_ENABLED(inq_data)) == 0 1442 || (device->queue_flags & SCP_QUEUE_DQUE) != 0 1443 || (device->mintags == 0)) { 1444 /* 1445 * Can't tag on hardware that doesn't support tags, 1446 * doesn't have it enabled, or has broken tag support. 1447 */ 1448 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 1449 } 1450 1451 if (async_update == FALSE) { 1452 /* 1453 * Perform sanity checking against what the 1454 * controller and device can do. 1455 */ 1456 xpt_setup_ccb(&cur_cts.ccb_h, cts->ccb_h.path, CAM_PRIORITY_NORMAL); 1457 cur_cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1458 cur_cts.type = cts->type; 1459 xpt_action((union ccb *)&cur_cts); 1460 if ((cur_cts.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1461 return; 1462 } 1463 cur_scsi = &cur_cts.proto_specific.scsi; 1464 if ((scsi->valid & CTS_SCSI_VALID_TQ) == 0) { 1465 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 1466 scsi->flags |= cur_scsi->flags & CTS_SCSI_FLAGS_TAG_ENB; 1467 } 1468 if ((cur_scsi->valid & CTS_SCSI_VALID_TQ) == 0) 1469 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 1470 } 1471 1472 if (cts->type == CTS_TYPE_CURRENT_SETTINGS 1473 && (scsi->valid & CTS_SCSI_VALID_TQ) != 0) { 1474 int device_tagenb; 1475 1476 /* 1477 * If we are transitioning from tags to no-tags or 1478 * vice-versa, we need to carefully freeze and restart 1479 * the queue so that we don't overlap tagged and non-tagged 1480 * commands. We also temporarily stop tags if there is 1481 * a change in transfer negotiation settings to allow 1482 * "tag-less" negotiation. 1483 */ 1484 if ((device->flags & CAM_DEV_TAG_AFTER_COUNT) != 0 1485 || (device->inq_flags & SID_CmdQue) != 0) 1486 device_tagenb = TRUE; 1487 else 1488 device_tagenb = FALSE; 1489 1490 if (((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0 1491 && device_tagenb == FALSE) 1492 || ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) == 0 1493 && device_tagenb == TRUE)) { 1494 1495 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) { 1496 /* 1497 * Delay change to use tags until after a 1498 * few commands have gone to this device so 1499 * the controller has time to perform transfer 1500 * negotiations without tagged messages getting 1501 * in the way. 1502 */ 1503 device->tag_delay_count = CAM_TAG_DELAY_COUNT; 1504 device->flags |= CAM_DEV_TAG_AFTER_COUNT; 1505 } else { 1506 xpt_stop_tags(cts->ccb_h.path); 1507 } 1508 } 1509 } 1510 if (async_update == FALSE) 1511 (*(sim->sim_action))(sim, (union ccb *)cts); 1512} 1513 1514/* 1515 * Handle any per-device event notifications that require action by the XPT. 1516 */ 1517static void 1518ata_dev_async(u_int32_t async_code, struct cam_eb *bus, struct cam_et *target, 1519 struct cam_ed *device, void *async_arg) 1520{ 1521 cam_status status; 1522 struct cam_path newpath; 1523 1524 /* 1525 * We only need to handle events for real devices. 1526 */ 1527 if (target->target_id == CAM_TARGET_WILDCARD 1528 || device->lun_id == CAM_LUN_WILDCARD) 1529 return; 1530 1531 /* 1532 * We need our own path with wildcards expanded to 1533 * handle certain types of events. 1534 */ 1535 if ((async_code == AC_SENT_BDR) 1536 || (async_code == AC_BUS_RESET) 1537 || (async_code == AC_INQ_CHANGED)) 1538 status = xpt_compile_path(&newpath, NULL, 1539 bus->path_id, 1540 target->target_id, 1541 device->lun_id); 1542 else 1543 status = CAM_REQ_CMP_ERR; 1544 1545 if (status == CAM_REQ_CMP) { 1546 if (async_code == AC_INQ_CHANGED) { 1547 /* 1548 * We've sent a start unit command, or 1549 * something similar to a device that 1550 * may have caused its inquiry data to 1551 * change. So we re-scan the device to 1552 * refresh the inquiry data for it. 1553 */ 1554 ata_scan_lun(newpath.periph, &newpath, 1555 CAM_EXPECT_INQ_CHANGE, NULL); 1556 } 1557 xpt_release_path(&newpath); 1558 } else if (async_code == AC_LOST_DEVICE && 1559 (device->flags & CAM_DEV_UNCONFIGURED) == 0) { 1560 device->flags |= CAM_DEV_UNCONFIGURED; 1561 xpt_release_device(device); 1562 } else if (async_code == AC_TRANSFER_NEG) { 1563 struct ccb_trans_settings *settings; 1564 1565 settings = (struct ccb_trans_settings *)async_arg; 1566 ata_set_transfer_settings(settings, device, 1567 /*async_update*/TRUE); 1568 } 1569} 1570 1571