1 /*- 2 * Copyright (c) 2009 Alexander Motin <mav@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer, 10 * without modification, immediately at the beginning of the file. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 #include <sys/param.h> 31 32 #ifdef _KERNEL 33 #include <sys/systm.h> 34 #include <sys/kernel.h> 35 #include <sys/bio.h> 36 #include <sys/sysctl.h> 37 #include <sys/taskqueue.h> 38 #include <sys/lock.h> 39 #include <sys/mutex.h> 40 #include <sys/conf.h> 41 #include <sys/devicestat.h> 42 #include <sys/eventhandler.h> 43 #include <sys/malloc.h> 44 #include <sys/cons.h> 45 #include <geom/geom_disk.h> 46 #endif /* _KERNEL */ 47 48 #ifndef _KERNEL 49 #include <stdio.h> 50 #include <string.h> 51 #endif /* _KERNEL */ 52 53 #include <cam/cam.h> 54 #include <cam/cam_ccb.h> 55 #include <cam/cam_periph.h> 56 #include <cam/cam_xpt_periph.h> 57 #include <cam/cam_sim.h> 58 59 #include <cam/ata/ata_all.h> 60 61 #ifdef _KERNEL 62 63 typedef enum { 64 PMP_STATE_NORMAL, 65 PMP_STATE_PORTS, 66 PMP_STATE_PRECONFIG, 67 PMP_STATE_RESET, 68 PMP_STATE_CONNECT, 69 PMP_STATE_CHECK, 70 PMP_STATE_CLEAR, 71 PMP_STATE_CONFIG, 72 PMP_STATE_SCAN 73 } pmp_state; 74 75 typedef enum { 76 PMP_FLAG_SCTX_INIT = 0x200 77 } pmp_flags; 78 79 typedef enum { 80 PMP_CCB_PROBE = 0x01, 81 } pmp_ccb_state; 82 83 /* Offsets into our private area for storing information */ 84 #define ccb_state ppriv_field0 85 #define ccb_bp ppriv_ptr1 86 87 struct pmp_softc { 88 SLIST_ENTRY(pmp_softc) links; 89 pmp_state state; 90 pmp_flags flags; 91 uint32_t pm_pid; 92 uint32_t pm_prv; 93 int pm_ports; 94 int pm_step; 95 int pm_try; 96 int found; 97 int reset; 98 int frozen; 99 int restart; 100 union ccb saved_ccb; 101 struct task sysctl_task; 102 struct sysctl_ctx_list sysctl_ctx; 103 struct sysctl_oid *sysctl_tree; 104 }; 105 106 static periph_init_t pmpinit; 107 static void pmpasync(void *callback_arg, u_int32_t code, 108 struct cam_path *path, void *arg); 109 static void pmpsysctlinit(void *context, int pending); 110 static periph_ctor_t pmpregister; 111 static periph_dtor_t pmpcleanup; 112 static periph_start_t pmpstart; 113 static periph_oninv_t pmponinvalidate; 114 static void pmpdone(struct cam_periph *periph, 115 union ccb *done_ccb); 116 117 #ifndef PMP_DEFAULT_TIMEOUT 118 #define PMP_DEFAULT_TIMEOUT 30 /* Timeout in seconds */ 119 #endif 120 121 #ifndef PMP_DEFAULT_RETRY 122 #define PMP_DEFAULT_RETRY 1 123 #endif 124 125 static int pmp_retry_count = PMP_DEFAULT_RETRY; 126 static int pmp_default_timeout = PMP_DEFAULT_TIMEOUT; 127 128 SYSCTL_NODE(_kern_cam, OID_AUTO, pmp, CTLFLAG_RD, 0, 129 "CAM Direct Access Disk driver"); 130 SYSCTL_INT(_kern_cam_pmp, OID_AUTO, retry_count, CTLFLAG_RW, 131 &pmp_retry_count, 0, "Normal I/O retry count"); 132 TUNABLE_INT("kern.cam.pmp.retry_count", &pmp_retry_count); 133 SYSCTL_INT(_kern_cam_pmp, OID_AUTO, default_timeout, CTLFLAG_RW, 134 &pmp_default_timeout, 0, "Normal I/O timeout (in seconds)"); 135 TUNABLE_INT("kern.cam.pmp.default_timeout", &pmp_default_timeout); 136 137 static struct periph_driver pmpdriver = 138 { 139 pmpinit, "pmp", 140 TAILQ_HEAD_INITIALIZER(pmpdriver.units), /* generation */ 0, 141 CAM_PERIPH_DRV_EARLY 142 }; 143 144 PERIPHDRIVER_DECLARE(pmp, pmpdriver); 145 146 MALLOC_DEFINE(M_ATPMP, "ata_pmp", "ata_pmp buffers"); 147 148 static void 149 pmpinit(void) 150 { 151 cam_status status; 152 153 /* 154 * Install a global async callback. This callback will 155 * receive async callbacks like "new device found". 156 */ 157 status = xpt_register_async(AC_FOUND_DEVICE, pmpasync, NULL, NULL); 158 159 if (status != CAM_REQ_CMP) { 160 printf("pmp: Failed to attach master async callback " 161 "due to status 0x%x!\n", status); 162 } 163 } 164 165 static void 166 pmpfreeze(struct cam_periph *periph, int mask) 167 { 168 struct pmp_softc *softc = (struct pmp_softc *)periph->softc; 169 struct cam_path *dpath; 170 int i; 171 172 mask &= ~softc->frozen; 173 for (i = 0; i < 15; i++) { 174 if ((mask & (1 << i)) == 0) 175 continue; 176 if (xpt_create_path(&dpath, periph, 177 xpt_path_path_id(periph->path), 178 i, 0) == CAM_REQ_CMP) { 179 printf("PMP freeze: %d\n", i); 180 softc->frozen |= (1 << i); 181 cam_freeze_devq(dpath); 182 xpt_free_path(dpath); 183 } 184 } 185 } 186 187 static void 188 pmprelease(struct cam_periph *periph, int mask) 189 { 190 struct pmp_softc *softc = (struct pmp_softc *)periph->softc; 191 struct cam_path *dpath; 192 int i; 193 194 mask &= softc->frozen; 195 for (i = 0; i < 15; i++) { 196 if ((mask & (1 << i)) == 0) 197 continue; 198 if (xpt_create_path(&dpath, periph, 199 xpt_path_path_id(periph->path), 200 i, 0) == CAM_REQ_CMP) { 201 printf("PMP release: %d\n", i); 202 softc->frozen &= ~(1 << i); 203 cam_release_devq(dpath, 0, 0, 0, FALSE); 204 xpt_free_path(dpath); 205 } 206 } 207 } 208 209 static void 210 pmponinvalidate(struct cam_periph *periph) 211 { 212 struct pmp_softc *softc; 213 struct cam_path *dpath; 214 int i; 215 216 softc = (struct pmp_softc *)periph->softc; 217 218 /* 219 * De-register any async callbacks. 220 */ 221 xpt_register_async(0, pmpasync, periph, periph->path); 222 223 for (i = 0; i < 15; i++) { 224 if (xpt_create_path(&dpath, periph, 225 xpt_path_path_id(periph->path), 226 i, 0) == CAM_REQ_CMP) { 227 xpt_async(AC_LOST_DEVICE, dpath, NULL); 228 xpt_free_path(dpath); 229 } 230 } 231 xpt_print(periph->path, "lost device\n"); 232 } 233 234 static void 235 pmpcleanup(struct cam_periph *periph) 236 { 237 struct pmp_softc *softc; 238 239 softc = (struct pmp_softc *)periph->softc; 240 241 xpt_print(periph->path, "removing device entry\n"); 242 cam_periph_unlock(periph); 243 244 /* 245 * If we can't free the sysctl tree, oh well... 246 */ 247 if ((softc->flags & PMP_FLAG_SCTX_INIT) != 0 248 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) { 249 xpt_print(periph->path, "can't remove sysctl context\n"); 250 } 251 252 free(softc, M_DEVBUF); 253 cam_periph_lock(periph); 254 } 255 256 static void 257 pmpasync(void *callback_arg, u_int32_t code, 258 struct cam_path *path, void *arg) 259 { 260 struct cam_periph *periph; 261 struct pmp_softc *softc; 262 263 periph = (struct cam_periph *)callback_arg; 264 switch (code) { 265 case AC_FOUND_DEVICE: 266 { 267 struct ccb_getdev *cgd; 268 cam_status status; 269 270 cgd = (struct ccb_getdev *)arg; 271 if (cgd == NULL) 272 break; 273 274 if (cgd->protocol != PROTO_SATAPM) 275 break; 276 277 /* 278 * Allocate a peripheral instance for 279 * this device and start the probe 280 * process. 281 */ 282 status = cam_periph_alloc(pmpregister, pmponinvalidate, 283 pmpcleanup, pmpstart, 284 "pmp", CAM_PERIPH_BIO, 285 cgd->ccb_h.path, pmpasync, 286 AC_FOUND_DEVICE, cgd); 287 288 if (status != CAM_REQ_CMP 289 && status != CAM_REQ_INPROG) 290 printf("pmpasync: Unable to attach to new device " 291 "due to status 0x%x\n", status); 292 break; 293 } 294 case AC_SCSI_AEN: 295 case AC_SENT_BDR: 296 case AC_BUS_RESET: 297 softc = (struct pmp_softc *)periph->softc; 298 cam_periph_async(periph, code, path, arg); 299 if (code == AC_SCSI_AEN && softc->state != PMP_STATE_NORMAL && 300 softc->state != PMP_STATE_SCAN) 301 break; 302 if (softc->state != PMP_STATE_SCAN) 303 pmpfreeze(periph, softc->found); 304 else 305 pmpfreeze(periph, softc->found & ~(1 << softc->pm_step)); 306 if (code == AC_SENT_BDR || code == AC_BUS_RESET) 307 softc->found = 0; /* We have to reset everything. */ 308 if (softc->state == PMP_STATE_NORMAL) { 309 softc->state = PMP_STATE_PORTS; 310 cam_periph_acquire(periph); 311 xpt_schedule(periph, CAM_PRIORITY_BUS); 312 } else 313 softc->restart = 1; 314 break; 315 default: 316 cam_periph_async(periph, code, path, arg); 317 break; 318 } 319 } 320 321 static void 322 pmpsysctlinit(void *context, int pending) 323 { 324 struct cam_periph *periph; 325 struct pmp_softc *softc; 326 char tmpstr[80], tmpstr2[80]; 327 328 periph = (struct cam_periph *)context; 329 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 330 return; 331 332 softc = (struct pmp_softc *)periph->softc; 333 snprintf(tmpstr, sizeof(tmpstr), "CAM PMP unit %d", periph->unit_number); 334 snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number); 335 336 sysctl_ctx_init(&softc->sysctl_ctx); 337 softc->flags |= PMP_FLAG_SCTX_INIT; 338 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 339 SYSCTL_STATIC_CHILDREN(_kern_cam_pmp), OID_AUTO, tmpstr2, 340 CTLFLAG_RD, 0, tmpstr); 341 if (softc->sysctl_tree == NULL) { 342 printf("pmpsysctlinit: unable to allocate sysctl tree\n"); 343 cam_periph_release(periph); 344 return; 345 } 346 347 cam_periph_release(periph); 348 } 349 350 static cam_status 351 pmpregister(struct cam_periph *periph, void *arg) 352 { 353 struct pmp_softc *softc; 354 struct ccb_pathinq cpi; 355 struct ccb_getdev *cgd; 356 357 cgd = (struct ccb_getdev *)arg; 358 if (periph == NULL) { 359 printf("pmpregister: periph was NULL!!\n"); 360 return(CAM_REQ_CMP_ERR); 361 } 362 363 if (cgd == NULL) { 364 printf("pmpregister: no getdev CCB, can't register device\n"); 365 return(CAM_REQ_CMP_ERR); 366 } 367 368 softc = (struct pmp_softc *)malloc(sizeof(*softc), M_DEVBUF, 369 M_NOWAIT|M_ZERO); 370 371 if (softc == NULL) { 372 printf("pmpregister: Unable to probe new device. " 373 "Unable to allocate softc\n"); 374 return(CAM_REQ_CMP_ERR); 375 } 376 periph->softc = softc; 377 378 softc->state = PMP_STATE_PORTS; 379 softc->pm_pid = ((uint32_t *)&cgd->ident_data)[0]; 380 softc->pm_prv = ((uint32_t *)&cgd->ident_data)[1]; 381 382 /* Check if the SIM does not want queued commands */ 383 bzero(&cpi, sizeof(cpi)); 384 xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 385 cpi.ccb_h.func_code = XPT_PATH_INQ; 386 xpt_action((union ccb *)&cpi); 387 388 TASK_INIT(&softc->sysctl_task, 0, pmpsysctlinit, periph); 389 390 xpt_announce_periph(periph, NULL); 391 392 /* 393 * Add async callbacks for bus reset and 394 * bus device reset calls. I don't bother 395 * checking if this fails as, in most cases, 396 * the system will function just fine without 397 * them and the only alternative would be to 398 * not attach the device on failure. 399 */ 400 xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE | 401 AC_SCSI_AEN, pmpasync, periph, periph->path); 402 403 /* 404 * Take an exclusive refcount on the periph while pmpstart is called 405 * to finish the probe. The reference will be dropped in pmpdone at 406 * the end of probe. 407 */ 408 (void)cam_periph_acquire(periph); 409 xpt_schedule(periph, CAM_PRIORITY_BUS); 410 411 return(CAM_REQ_CMP); 412 } 413 414 static void 415 pmpstart(struct cam_periph *periph, union ccb *start_ccb) 416 { 417 struct ccb_ataio *ataio; 418 struct pmp_softc *softc; 419 420 softc = (struct pmp_softc *)periph->softc; 421 ataio = &start_ccb->ataio; 422 423 if (softc->restart) { 424 softc->restart = 0; 425 softc->state = PMP_STATE_PORTS; 426 } 427 428 switch (softc->state) { 429 case PMP_STATE_PORTS: 430 cam_fill_ataio(ataio, 431 pmp_retry_count, 432 pmpdone, 433 /*flags*/CAM_DIR_NONE, 434 0, 435 /*data_ptr*/NULL, 436 /*dxfer_len*/0, 437 pmp_default_timeout * 1000); 438 ata_pm_read_cmd(ataio, 2, 15); 439 break; 440 case PMP_STATE_PRECONFIG: 441 cam_fill_ataio(ataio, 442 pmp_retry_count, 443 pmpdone, 444 /*flags*/CAM_DIR_NONE, 445 0, 446 /*data_ptr*/NULL, 447 /*dxfer_len*/0, 448 pmp_default_timeout * 1000); 449 ata_pm_write_cmd(ataio, 0x60, 15, 0x0); 450 break; 451 case PMP_STATE_RESET: 452 cam_fill_ataio(ataio, 453 pmp_retry_count, 454 pmpdone, 455 /*flags*/CAM_DIR_NONE, 456 0, 457 /*data_ptr*/NULL, 458 /*dxfer_len*/0, 459 pmp_default_timeout * 1000); 460 ata_pm_write_cmd(ataio, 2, softc->pm_step, 461 (softc->found & (1 << softc->pm_step)) ? 0 : 1); 462 printf("PM RESET %d%s\n", softc->pm_step, 463 (softc->found & (1 << softc->pm_step)) ? " skipping" : ""); 464 break; 465 case PMP_STATE_CONNECT: 466 cam_fill_ataio(ataio, 467 pmp_retry_count, 468 pmpdone, 469 /*flags*/CAM_DIR_NONE, 470 0, 471 /*data_ptr*/NULL, 472 /*dxfer_len*/0, 473 pmp_default_timeout * 1000); 474 ata_pm_write_cmd(ataio, 2, softc->pm_step, 0); 475 break; 476 case PMP_STATE_CHECK: 477 cam_fill_ataio(ataio, 478 pmp_retry_count, 479 pmpdone, 480 /*flags*/CAM_DIR_NONE, 481 0, 482 /*data_ptr*/NULL, 483 /*dxfer_len*/0, 484 pmp_default_timeout * 1000); 485 ata_pm_read_cmd(ataio, 0, softc->pm_step); 486 break; 487 case PMP_STATE_CLEAR: 488 softc->reset = 0; 489 cam_fill_ataio(ataio, 490 pmp_retry_count, 491 pmpdone, 492 /*flags*/CAM_DIR_NONE, 493 0, 494 /*data_ptr*/NULL, 495 /*dxfer_len*/0, 496 pmp_default_timeout * 1000); 497 ata_pm_write_cmd(ataio, 1, softc->pm_step, 0xFFFFFFFF); 498 break; 499 case PMP_STATE_CONFIG: 500 cam_fill_ataio(ataio, 501 pmp_retry_count, 502 pmpdone, 503 /*flags*/CAM_DIR_NONE, 504 0, 505 /*data_ptr*/NULL, 506 /*dxfer_len*/0, 507 pmp_default_timeout * 1000); 508 ata_pm_write_cmd(ataio, 0x60, 15, 0xf); 509 break; 510 default: 511 break; 512 } 513 xpt_action(start_ccb); 514 } 515 516 static void 517 pmpdone(struct cam_periph *periph, union ccb *done_ccb) 518 { 519 struct ccb_trans_settings cts; 520 struct pmp_softc *softc; 521 struct ccb_ataio *ataio; 522 union ccb *work_ccb; 523 struct cam_path *path, *dpath; 524 u_int32_t priority, res; 525 526 softc = (struct pmp_softc *)periph->softc; 527 ataio = &done_ccb->ataio; 528 529 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("pmpdone\n")); 530 531 path = done_ccb->ccb_h.path; 532 priority = done_ccb->ccb_h.pinfo.priority; 533 534 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 535 if (cam_periph_error(done_ccb, 0, 0, 536 &softc->saved_ccb) == ERESTART) { 537 return; 538 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 539 cam_release_devq(done_ccb->ccb_h.path, 540 /*relsim_flags*/0, 541 /*reduction*/0, 542 /*timeout*/0, 543 /*getcount_only*/0); 544 } 545 goto done; 546 } 547 548 if (softc->restart) { 549 softc->restart = 0; 550 if (softc->state == PMP_STATE_SCAN) { 551 pmpfreeze(periph, 1 << softc->pm_step); 552 work_ccb = done_ccb; 553 done_ccb = (union ccb*)work_ccb->ccb_h.ppriv_ptr0; 554 /* Free the current request path- we're done with it. */ 555 xpt_free_path(work_ccb->ccb_h.path); 556 xpt_free_ccb(work_ccb); 557 } 558 xpt_release_ccb(done_ccb); 559 softc->state = PMP_STATE_PORTS; 560 xpt_schedule(periph, priority); 561 return; 562 } 563 564 switch (softc->state) { 565 case PMP_STATE_PORTS: 566 softc->pm_ports = (done_ccb->ataio.res.lba_high << 24) + 567 (done_ccb->ataio.res.lba_mid << 16) + 568 (done_ccb->ataio.res.lba_low << 8) + 569 done_ccb->ataio.res.sector_count; 570 /* This PMP declares 6 ports, while only 5 of them are real. 571 * Port 5 is enclosure management bridge port, which has implementation 572 * problems, causing probe faults. Hide it for now. */ 573 if (softc->pm_pid == 0x37261095 && softc->pm_ports == 6) 574 softc->pm_ports = 5; 575 /* This PMP declares 7 ports, while only 5 of them are real. 576 * Port 5 is some fake "Config Disk" with 640 sectors size, 577 * port 6 is enclosure management bridge port. 578 * Both fake ports has implementation problems, causing 579 * probe faults. Hide them for now. */ 580 if (softc->pm_pid == 0x47261095 && softc->pm_ports == 7) 581 softc->pm_ports = 5; 582 /* These PMPs declare one more port then actually have, 583 * for configuration purposes. Hide it for now. */ 584 if (softc->pm_pid == 0x57231095 || softc->pm_pid == 0x57331095 || 585 softc->pm_pid == 0x57341095 || softc->pm_pid == 0x57441095) 586 softc->pm_ports--; 587 printf("PM ports: %d\n", softc->pm_ports); 588 softc->state = PMP_STATE_PRECONFIG; 589 xpt_release_ccb(done_ccb); 590 xpt_schedule(periph, priority); 591 return; 592 case PMP_STATE_PRECONFIG: 593 softc->pm_step = 0; 594 softc->state = PMP_STATE_RESET; 595 softc->reset |= ~softc->found; 596 xpt_release_ccb(done_ccb); 597 xpt_schedule(periph, priority); 598 return; 599 case PMP_STATE_RESET: 600 softc->pm_step++; 601 if (softc->pm_step >= softc->pm_ports) { 602 softc->pm_step = 0; 603 cam_freeze_devq(periph->path); 604 cam_release_devq(periph->path, 605 RELSIM_RELEASE_AFTER_TIMEOUT, 606 /*reduction*/0, 607 /*timeout*/5, 608 /*getcount_only*/0); 609 printf("PM reset done\n"); 610 softc->state = PMP_STATE_CONNECT; 611 } 612 xpt_release_ccb(done_ccb); 613 xpt_schedule(periph, priority); 614 return; 615 case PMP_STATE_CONNECT: 616 softc->pm_step++; 617 if (softc->pm_step >= softc->pm_ports) { 618 softc->pm_step = 0; 619 softc->pm_try = 0; 620 cam_freeze_devq(periph->path); 621 cam_release_devq(periph->path, 622 RELSIM_RELEASE_AFTER_TIMEOUT, 623 /*reduction*/0, 624 /*timeout*/10, 625 /*getcount_only*/0); 626 printf("PM connect done\n"); 627 softc->state = PMP_STATE_CHECK; 628 } 629 xpt_release_ccb(done_ccb); 630 xpt_schedule(periph, priority); 631 return; 632 case PMP_STATE_CHECK: 633 res = (done_ccb->ataio.res.lba_high << 24) + 634 (done_ccb->ataio.res.lba_mid << 16) + 635 (done_ccb->ataio.res.lba_low << 8) + 636 done_ccb->ataio.res.sector_count; 637 if ((res & 0xf0f) == 0x103 && (res & 0x0f0) != 0) { 638 printf("PM status: %d - %08x\n", softc->pm_step, res); 639 /* Report device speed. */ 640 if (xpt_create_path(&dpath, periph, 641 xpt_path_path_id(periph->path), 642 softc->pm_step, 0) == CAM_REQ_CMP) { 643 bzero(&cts, sizeof(cts)); 644 xpt_setup_ccb(&cts.ccb_h, dpath, CAM_PRIORITY_NORMAL); 645 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 646 cts.type = CTS_TYPE_CURRENT_SETTINGS; 647 cts.xport_specific.sata.revision = (res & 0x0f0) >> 4; 648 cts.xport_specific.sata.valid = CTS_SATA_VALID_REVISION; 649 xpt_action((union ccb *)&cts); 650 xpt_free_path(dpath); 651 } 652 softc->found |= (1 << softc->pm_step); 653 softc->pm_step++; 654 } else { 655 if (softc->pm_try < 10) { 656 cam_freeze_devq(periph->path); 657 cam_release_devq(periph->path, 658 RELSIM_RELEASE_AFTER_TIMEOUT, 659 /*reduction*/0, 660 /*timeout*/10, 661 /*getcount_only*/0); 662 softc->pm_try++; 663 } else { 664 printf("PM status: %d - %08x\n", softc->pm_step, res); 665 softc->found &= ~(1 << softc->pm_step); 666 if (xpt_create_path(&dpath, periph, 667 done_ccb->ccb_h.path_id, 668 softc->pm_step, 0) == CAM_REQ_CMP) { 669 xpt_async(AC_LOST_DEVICE, dpath, NULL); 670 xpt_free_path(dpath); 671 } 672 softc->pm_step++; 673 } 674 } 675 if (softc->pm_step >= softc->pm_ports) { 676 if (softc->reset & softc->found) { 677 cam_freeze_devq(periph->path); 678 cam_release_devq(periph->path, 679 RELSIM_RELEASE_AFTER_TIMEOUT, 680 /*reduction*/0, 681 /*timeout*/1000, 682 /*getcount_only*/0); 683 } 684 softc->state = PMP_STATE_CLEAR; 685 softc->pm_step = 0; 686 } 687 xpt_release_ccb(done_ccb); 688 xpt_schedule(periph, priority); 689 return; 690 case PMP_STATE_CLEAR: 691 softc->pm_step++; 692 if (softc->pm_step >= softc->pm_ports) { 693 softc->state = PMP_STATE_CONFIG; 694 softc->pm_step = 0; 695 } 696 xpt_release_ccb(done_ccb); 697 xpt_schedule(periph, priority); 698 return; 699 case PMP_STATE_CONFIG: 700 if (softc->found) { 701 softc->pm_step = 0; 702 softc->state = PMP_STATE_SCAN; 703 work_ccb = xpt_alloc_ccb_nowait(); 704 if (work_ccb != NULL) 705 goto do_scan; 706 xpt_release_ccb(done_ccb); 707 } 708 break; 709 case PMP_STATE_SCAN: 710 work_ccb = done_ccb; 711 done_ccb = (union ccb*)work_ccb->ccb_h.ppriv_ptr0; 712 /* Free the current request path- we're done with it. */ 713 xpt_free_path(work_ccb->ccb_h.path); 714 softc->pm_step++; 715 do_scan: 716 while (softc->pm_step < softc->pm_ports && 717 (softc->found & (1 << softc->pm_step)) == 0) { 718 softc->pm_step++; 719 } 720 if (softc->pm_step >= softc->pm_ports) { 721 xpt_free_ccb(work_ccb); 722 break; 723 } 724 if (xpt_create_path(&dpath, periph, 725 done_ccb->ccb_h.path_id, 726 softc->pm_step, 0) != CAM_REQ_CMP) { 727 printf("pmpdone: xpt_create_path failed" 728 ", bus scan halted\n"); 729 xpt_free_ccb(work_ccb); 730 break; 731 } 732 xpt_setup_ccb(&work_ccb->ccb_h, dpath, 733 done_ccb->ccb_h.pinfo.priority); 734 work_ccb->ccb_h.func_code = XPT_SCAN_LUN; 735 work_ccb->ccb_h.cbfcnp = pmpdone; 736 work_ccb->ccb_h.ppriv_ptr0 = done_ccb; 737 work_ccb->crcn.flags = done_ccb->crcn.flags; 738 xpt_action(work_ccb); 739 pmprelease(periph, 1 << softc->pm_step); 740 return; 741 default: 742 break; 743 } 744 done: 745 xpt_release_ccb(done_ccb); 746 softc->state = PMP_STATE_NORMAL; 747 pmprelease(periph, -1); 748 cam_periph_release_locked(periph); 749 } 750 751 #endif /* _KERNEL */ 752