ata_pmp.c revision 236602
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_pmp.c 236602 2012-06-05 09:45:42Z mav $"); 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_xpt_internal.h> 58#include <cam/cam_sim.h> 59 60#include <cam/ata/ata_all.h> 61 62#ifdef _KERNEL 63 64typedef enum { 65 PMP_STATE_NORMAL, 66 PMP_STATE_PORTS, 67 PMP_STATE_PRECONFIG, 68 PMP_STATE_RESET, 69 PMP_STATE_CONNECT, 70 PMP_STATE_CHECK, 71 PMP_STATE_CLEAR, 72 PMP_STATE_CONFIG, 73 PMP_STATE_SCAN 74} pmp_state; 75 76typedef enum { 77 PMP_FLAG_SCTX_INIT = 0x200 78} pmp_flags; 79 80typedef enum { 81 PMP_CCB_PROBE = 0x01, 82} pmp_ccb_state; 83 84/* Offsets into our private area for storing information */ 85#define ccb_state ppriv_field0 86#define ccb_bp ppriv_ptr1 87 88struct pmp_softc { 89 SLIST_ENTRY(pmp_softc) links; 90 pmp_state state; 91 pmp_flags flags; 92 uint32_t pm_pid; 93 uint32_t pm_prv; 94 int pm_ports; 95 int pm_step; 96 int pm_try; 97 int found; 98 int reset; 99 int frozen; 100 int restart; 101 int events; 102#define PMP_EV_RESET 1 103#define PMP_EV_RESCAN 2 104 u_int caps; 105 struct task sysctl_task; 106 struct sysctl_ctx_list sysctl_ctx; 107 struct sysctl_oid *sysctl_tree; 108}; 109 110static periph_init_t pmpinit; 111static void pmpasync(void *callback_arg, u_int32_t code, 112 struct cam_path *path, void *arg); 113static void pmpsysctlinit(void *context, int pending); 114static periph_ctor_t pmpregister; 115static periph_dtor_t pmpcleanup; 116static periph_start_t pmpstart; 117static periph_oninv_t pmponinvalidate; 118static void pmpdone(struct cam_periph *periph, 119 union ccb *done_ccb); 120 121#ifndef PMP_DEFAULT_TIMEOUT 122#define PMP_DEFAULT_TIMEOUT 30 /* Timeout in seconds */ 123#endif 124 125#ifndef PMP_DEFAULT_RETRY 126#define PMP_DEFAULT_RETRY 1 127#endif 128 129#ifndef PMP_DEFAULT_HIDE_SPECIAL 130#define PMP_DEFAULT_HIDE_SPECIAL 1 131#endif 132 133static int pmp_retry_count = PMP_DEFAULT_RETRY; 134static int pmp_default_timeout = PMP_DEFAULT_TIMEOUT; 135static int pmp_hide_special = PMP_DEFAULT_HIDE_SPECIAL; 136 137static SYSCTL_NODE(_kern_cam, OID_AUTO, pmp, CTLFLAG_RD, 0, 138 "CAM Direct Access Disk driver"); 139SYSCTL_INT(_kern_cam_pmp, OID_AUTO, retry_count, CTLFLAG_RW, 140 &pmp_retry_count, 0, "Normal I/O retry count"); 141TUNABLE_INT("kern.cam.pmp.retry_count", &pmp_retry_count); 142SYSCTL_INT(_kern_cam_pmp, OID_AUTO, default_timeout, CTLFLAG_RW, 143 &pmp_default_timeout, 0, "Normal I/O timeout (in seconds)"); 144TUNABLE_INT("kern.cam.pmp.default_timeout", &pmp_default_timeout); 145SYSCTL_INT(_kern_cam_pmp, OID_AUTO, hide_special, CTLFLAG_RW, 146 &pmp_hide_special, 0, "Hide extra ports"); 147TUNABLE_INT("kern.cam.pmp.hide_special", &pmp_hide_special); 148 149static struct periph_driver pmpdriver = 150{ 151 pmpinit, "pmp", 152 TAILQ_HEAD_INITIALIZER(pmpdriver.units), /* generation */ 0, 153 CAM_PERIPH_DRV_EARLY 154}; 155 156PERIPHDRIVER_DECLARE(pmp, pmpdriver); 157 158static MALLOC_DEFINE(M_ATPMP, "ata_pmp", "ata_pmp buffers"); 159 160static void 161pmpinit(void) 162{ 163 cam_status status; 164 165 /* 166 * Install a global async callback. This callback will 167 * receive async callbacks like "new device found". 168 */ 169 status = xpt_register_async(AC_FOUND_DEVICE, pmpasync, NULL, NULL); 170 171 if (status != CAM_REQ_CMP) { 172 printf("pmp: Failed to attach master async callback " 173 "due to status 0x%x!\n", status); 174 } 175} 176 177static void 178pmpfreeze(struct cam_periph *periph, int mask) 179{ 180 struct pmp_softc *softc = (struct pmp_softc *)periph->softc; 181 struct cam_path *dpath; 182 int i; 183 184 mask &= ~softc->frozen; 185 for (i = 0; i < 15; i++) { 186 if ((mask & (1 << i)) == 0) 187 continue; 188 if (xpt_create_path(&dpath, periph, 189 xpt_path_path_id(periph->path), 190 i, 0) == CAM_REQ_CMP) { 191 softc->frozen |= (1 << i); 192 xpt_acquire_device(dpath->device); 193 cam_freeze_devq_arg(dpath, 194 RELSIM_RELEASE_RUNLEVEL, CAM_RL_BUS + 1); 195 xpt_free_path(dpath); 196 } 197 } 198} 199 200static void 201pmprelease(struct cam_periph *periph, int mask) 202{ 203 struct pmp_softc *softc = (struct pmp_softc *)periph->softc; 204 struct cam_path *dpath; 205 int i; 206 207 mask &= softc->frozen; 208 for (i = 0; i < 15; i++) { 209 if ((mask & (1 << i)) == 0) 210 continue; 211 if (xpt_create_path(&dpath, periph, 212 xpt_path_path_id(periph->path), 213 i, 0) == CAM_REQ_CMP) { 214 softc->frozen &= ~(1 << i); 215 cam_release_devq(dpath, 216 RELSIM_RELEASE_RUNLEVEL, 0, CAM_RL_BUS + 1, FALSE); 217 xpt_release_device(dpath->device); 218 xpt_free_path(dpath); 219 } 220 } 221} 222 223static void 224pmponinvalidate(struct cam_periph *periph) 225{ 226 struct cam_path *dpath; 227 int i; 228 229 /* 230 * De-register any async callbacks. 231 */ 232 xpt_register_async(0, pmpasync, periph, periph->path); 233 234 for (i = 0; i < 15; i++) { 235 if (xpt_create_path(&dpath, periph, 236 xpt_path_path_id(periph->path), 237 i, 0) == CAM_REQ_CMP) { 238 xpt_async(AC_LOST_DEVICE, dpath, NULL); 239 xpt_free_path(dpath); 240 } 241 } 242 pmprelease(periph, -1); 243 xpt_print(periph->path, "lost device\n"); 244} 245 246static void 247pmpcleanup(struct cam_periph *periph) 248{ 249 struct pmp_softc *softc; 250 251 softc = (struct pmp_softc *)periph->softc; 252 253 xpt_print(periph->path, "removing device entry\n"); 254 cam_periph_unlock(periph); 255 256 /* 257 * If we can't free the sysctl tree, oh well... 258 */ 259 if ((softc->flags & PMP_FLAG_SCTX_INIT) != 0 260 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) { 261 xpt_print(periph->path, "can't remove sysctl context\n"); 262 } 263 264 free(softc, M_DEVBUF); 265 cam_periph_lock(periph); 266} 267 268static void 269pmpasync(void *callback_arg, u_int32_t code, 270 struct cam_path *path, void *arg) 271{ 272 struct cam_periph *periph; 273 struct pmp_softc *softc; 274 275 periph = (struct cam_periph *)callback_arg; 276 switch (code) { 277 case AC_FOUND_DEVICE: 278 { 279 struct ccb_getdev *cgd; 280 cam_status status; 281 282 cgd = (struct ccb_getdev *)arg; 283 if (cgd == NULL) 284 break; 285 286 if (cgd->protocol != PROTO_SATAPM) 287 break; 288 289 /* 290 * Allocate a peripheral instance for 291 * this device and start the probe 292 * process. 293 */ 294 status = cam_periph_alloc(pmpregister, pmponinvalidate, 295 pmpcleanup, pmpstart, 296 "pmp", CAM_PERIPH_BIO, 297 cgd->ccb_h.path, pmpasync, 298 AC_FOUND_DEVICE, cgd); 299 300 if (status != CAM_REQ_CMP 301 && status != CAM_REQ_INPROG) 302 printf("pmpasync: Unable to attach to new device " 303 "due to status 0x%x\n", status); 304 break; 305 } 306 case AC_SCSI_AEN: 307 case AC_SENT_BDR: 308 case AC_BUS_RESET: 309 softc = (struct pmp_softc *)periph->softc; 310 cam_periph_async(periph, code, path, arg); 311 if (code == AC_SCSI_AEN) 312 softc->events |= PMP_EV_RESCAN; 313 else 314 softc->events |= PMP_EV_RESET; 315 if (code == AC_SCSI_AEN && softc->state != PMP_STATE_NORMAL) 316 break; 317 xpt_hold_boot(); 318 pmpfreeze(periph, softc->found); 319 if (code == AC_SENT_BDR || code == AC_BUS_RESET) 320 softc->found = 0; /* We have to reset everything. */ 321 if (softc->state == PMP_STATE_NORMAL) { 322 softc->state = PMP_STATE_PRECONFIG; 323 cam_periph_acquire(periph); 324 xpt_schedule(periph, CAM_PRIORITY_DEV); 325 } else 326 softc->restart = 1; 327 break; 328 default: 329 cam_periph_async(periph, code, path, arg); 330 break; 331 } 332} 333 334static void 335pmpsysctlinit(void *context, int pending) 336{ 337 struct cam_periph *periph; 338 struct pmp_softc *softc; 339 char tmpstr[80], tmpstr2[80]; 340 341 periph = (struct cam_periph *)context; 342 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 343 return; 344 345 softc = (struct pmp_softc *)periph->softc; 346 snprintf(tmpstr, sizeof(tmpstr), "CAM PMP unit %d", periph->unit_number); 347 snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number); 348 349 sysctl_ctx_init(&softc->sysctl_ctx); 350 softc->flags |= PMP_FLAG_SCTX_INIT; 351 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 352 SYSCTL_STATIC_CHILDREN(_kern_cam_pmp), OID_AUTO, tmpstr2, 353 CTLFLAG_RD, 0, tmpstr); 354 if (softc->sysctl_tree == NULL) { 355 printf("pmpsysctlinit: unable to allocate sysctl tree\n"); 356 cam_periph_release(periph); 357 return; 358 } 359 360 cam_periph_release(periph); 361} 362 363static cam_status 364pmpregister(struct cam_periph *periph, void *arg) 365{ 366 struct pmp_softc *softc; 367 struct ccb_getdev *cgd; 368 369 cgd = (struct ccb_getdev *)arg; 370 if (periph == NULL) { 371 printf("pmpregister: periph was NULL!!\n"); 372 return(CAM_REQ_CMP_ERR); 373 } 374 375 if (cgd == NULL) { 376 printf("pmpregister: no getdev CCB, can't register device\n"); 377 return(CAM_REQ_CMP_ERR); 378 } 379 380 softc = (struct pmp_softc *)malloc(sizeof(*softc), M_DEVBUF, 381 M_NOWAIT|M_ZERO); 382 383 if (softc == NULL) { 384 printf("pmpregister: Unable to probe new device. " 385 "Unable to allocate softc\n"); 386 return(CAM_REQ_CMP_ERR); 387 } 388 periph->softc = softc; 389 390 softc->pm_pid = ((uint32_t *)&cgd->ident_data)[0]; 391 softc->pm_prv = ((uint32_t *)&cgd->ident_data)[1]; 392 TASK_INIT(&softc->sysctl_task, 0, pmpsysctlinit, periph); 393 394 xpt_announce_periph(periph, NULL); 395 396 /* 397 * Add async callbacks for bus reset and 398 * bus device reset calls. I don't bother 399 * checking if this fails as, in most cases, 400 * the system will function just fine without 401 * them and the only alternative would be to 402 * not attach the device on failure. 403 */ 404 xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE | 405 AC_SCSI_AEN, pmpasync, periph, periph->path); 406 407 /* 408 * Take an exclusive refcount on the periph while pmpstart is called 409 * to finish the probe. The reference will be dropped in pmpdone at 410 * the end of probe. 411 */ 412 (void)cam_periph_acquire(periph); 413 xpt_hold_boot(); 414 softc->state = PMP_STATE_PORTS; 415 softc->events = PMP_EV_RESCAN; 416 xpt_schedule(periph, CAM_PRIORITY_DEV); 417 418 return(CAM_REQ_CMP); 419} 420 421static void 422pmpstart(struct cam_periph *periph, union ccb *start_ccb) 423{ 424 struct ccb_trans_settings cts; 425 struct ccb_ataio *ataio; 426 struct pmp_softc *softc; 427 struct cam_path *dpath; 428 int revision = 0; 429 430 softc = (struct pmp_softc *)periph->softc; 431 ataio = &start_ccb->ataio; 432 433 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("pmpstart\n")); 434 435 if (softc->restart) { 436 softc->restart = 0; 437 softc->state = min(softc->state, PMP_STATE_PRECONFIG); 438 } 439 /* Fetch user wanted device speed. */ 440 if (softc->state == PMP_STATE_RESET || 441 softc->state == PMP_STATE_CONNECT) { 442 if (xpt_create_path(&dpath, periph, 443 xpt_path_path_id(periph->path), 444 softc->pm_step, 0) == CAM_REQ_CMP) { 445 bzero(&cts, sizeof(cts)); 446 xpt_setup_ccb(&cts.ccb_h, dpath, CAM_PRIORITY_NONE); 447 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 448 cts.type = CTS_TYPE_USER_SETTINGS; 449 xpt_action((union ccb *)&cts); 450 if (cts.xport_specific.sata.valid & CTS_SATA_VALID_REVISION) 451 revision = cts.xport_specific.sata.revision; 452 xpt_free_path(dpath); 453 } 454 } 455 switch (softc->state) { 456 case PMP_STATE_PORTS: 457 cam_fill_ataio(ataio, 458 pmp_retry_count, 459 pmpdone, 460 /*flags*/CAM_DIR_NONE, 461 0, 462 /*data_ptr*/NULL, 463 /*dxfer_len*/0, 464 pmp_default_timeout * 1000); 465 ata_pm_read_cmd(ataio, 2, 15); 466 break; 467 case PMP_STATE_PRECONFIG: 468 /* Get/update host SATA capabilities. */ 469 bzero(&cts, sizeof(cts)); 470 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE); 471 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 472 cts.type = CTS_TYPE_CURRENT_SETTINGS; 473 xpt_action((union ccb *)&cts); 474 if (cts.xport_specific.sata.valid & CTS_SATA_VALID_CAPS) 475 softc->caps = cts.xport_specific.sata.caps; 476 cam_fill_ataio(ataio, 477 pmp_retry_count, 478 pmpdone, 479 /*flags*/CAM_DIR_NONE, 480 0, 481 /*data_ptr*/NULL, 482 /*dxfer_len*/0, 483 pmp_default_timeout * 1000); 484 ata_pm_write_cmd(ataio, 0x60, 15, 0x0); 485 break; 486 case PMP_STATE_RESET: 487 cam_fill_ataio(ataio, 488 pmp_retry_count, 489 pmpdone, 490 /*flags*/CAM_DIR_NONE, 491 0, 492 /*data_ptr*/NULL, 493 /*dxfer_len*/0, 494 pmp_default_timeout * 1000); 495 ata_pm_write_cmd(ataio, 2, softc->pm_step, 496 (revision << 4) | 497 ((softc->found & (1 << softc->pm_step)) ? 0 : 1)); 498 break; 499 case PMP_STATE_CONNECT: 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, 2, softc->pm_step, 509 (revision << 4)); 510 break; 511 case PMP_STATE_CHECK: 512 cam_fill_ataio(ataio, 513 pmp_retry_count, 514 pmpdone, 515 /*flags*/CAM_DIR_NONE, 516 0, 517 /*data_ptr*/NULL, 518 /*dxfer_len*/0, 519 pmp_default_timeout * 1000); 520 ata_pm_read_cmd(ataio, 0, softc->pm_step); 521 break; 522 case PMP_STATE_CLEAR: 523 softc->reset = 0; 524 cam_fill_ataio(ataio, 525 pmp_retry_count, 526 pmpdone, 527 /*flags*/CAM_DIR_NONE, 528 0, 529 /*data_ptr*/NULL, 530 /*dxfer_len*/0, 531 pmp_default_timeout * 1000); 532 ata_pm_write_cmd(ataio, 1, softc->pm_step, 0xFFFFFFFF); 533 break; 534 case PMP_STATE_CONFIG: 535 cam_fill_ataio(ataio, 536 pmp_retry_count, 537 pmpdone, 538 /*flags*/CAM_DIR_NONE, 539 0, 540 /*data_ptr*/NULL, 541 /*dxfer_len*/0, 542 pmp_default_timeout * 1000); 543 ata_pm_write_cmd(ataio, 0x60, 15, 0x07 | 544 ((softc->caps & CTS_SATA_CAPS_H_AN) ? 0x08 : 0)); 545 break; 546 default: 547 break; 548 } 549 xpt_action(start_ccb); 550} 551 552static void 553pmpdone(struct cam_periph *periph, union ccb *done_ccb) 554{ 555 struct ccb_trans_settings cts; 556 struct pmp_softc *softc; 557 struct ccb_ataio *ataio; 558 struct cam_path *dpath; 559 u_int32_t priority, res; 560 int i; 561 562 softc = (struct pmp_softc *)periph->softc; 563 ataio = &done_ccb->ataio; 564 565 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("pmpdone\n")); 566 567 priority = done_ccb->ccb_h.pinfo.priority; 568 569 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 570 if (cam_periph_error(done_ccb, 0, 0, NULL) == ERESTART) { 571 return; 572 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 573 cam_release_devq(done_ccb->ccb_h.path, 574 /*relsim_flags*/0, 575 /*reduction*/0, 576 /*timeout*/0, 577 /*getcount_only*/0); 578 } 579 goto done; 580 } 581 582 if (softc->restart) { 583 softc->restart = 0; 584 xpt_release_ccb(done_ccb); 585 softc->state = min(softc->state, PMP_STATE_PRECONFIG); 586 xpt_schedule(periph, priority); 587 return; 588 } 589 590 switch (softc->state) { 591 case PMP_STATE_PORTS: 592 softc->pm_ports = (ataio->res.lba_high << 24) + 593 (ataio->res.lba_mid << 16) + 594 (ataio->res.lba_low << 8) + 595 ataio->res.sector_count; 596 if (pmp_hide_special) { 597 /* 598 * This PMP declares 6 ports, while only 5 of them 599 * are real. Port 5 is a SEMB port, probing which 600 * causes timeouts if external SEP is not connected 601 * to PMP over I2C. 602 */ 603 if (softc->pm_pid == 0x37261095 && softc->pm_ports == 6) 604 softc->pm_ports = 5; 605 606 /* 607 * This PMP declares 7 ports, while only 5 of them 608 * are real. Port 5 is a fake "Config Disk" with 609 * 640 sectors size. Port 6 is a SEMB port. 610 */ 611 if (softc->pm_pid == 0x47261095 && softc->pm_ports == 7) 612 softc->pm_ports = 5; 613 614 /* 615 * These PMPs have extra configuration port. 616 */ 617 if (softc->pm_pid == 0x57231095 || 618 softc->pm_pid == 0x57331095 || 619 softc->pm_pid == 0x57341095 || 620 softc->pm_pid == 0x57441095) 621 softc->pm_ports--; 622 } 623 printf("%s%d: %d fan-out ports\n", 624 periph->periph_name, periph->unit_number, 625 softc->pm_ports); 626 softc->state = PMP_STATE_PRECONFIG; 627 xpt_release_ccb(done_ccb); 628 xpt_schedule(periph, priority); 629 return; 630 case PMP_STATE_PRECONFIG: 631 softc->pm_step = 0; 632 softc->state = PMP_STATE_RESET; 633 softc->reset |= ~softc->found; 634 xpt_release_ccb(done_ccb); 635 xpt_schedule(periph, priority); 636 return; 637 case PMP_STATE_RESET: 638 softc->pm_step++; 639 if (softc->pm_step >= softc->pm_ports) { 640 softc->pm_step = 0; 641 cam_freeze_devq(periph->path); 642 cam_release_devq(periph->path, 643 RELSIM_RELEASE_AFTER_TIMEOUT, 644 /*reduction*/0, 645 /*timeout*/5, 646 /*getcount_only*/0); 647 softc->state = PMP_STATE_CONNECT; 648 } 649 xpt_release_ccb(done_ccb); 650 xpt_schedule(periph, priority); 651 return; 652 case PMP_STATE_CONNECT: 653 softc->pm_step++; 654 if (softc->pm_step >= softc->pm_ports) { 655 softc->pm_step = 0; 656 softc->pm_try = 0; 657 cam_freeze_devq(periph->path); 658 cam_release_devq(periph->path, 659 RELSIM_RELEASE_AFTER_TIMEOUT, 660 /*reduction*/0, 661 /*timeout*/10, 662 /*getcount_only*/0); 663 softc->state = PMP_STATE_CHECK; 664 } 665 xpt_release_ccb(done_ccb); 666 xpt_schedule(periph, priority); 667 return; 668 case PMP_STATE_CHECK: 669 res = (ataio->res.lba_high << 24) + 670 (ataio->res.lba_mid << 16) + 671 (ataio->res.lba_low << 8) + 672 ataio->res.sector_count; 673 if (((res & 0xf0f) == 0x103 && (res & 0x0f0) != 0) || 674 (res & 0x600) != 0) { 675 if (bootverbose) { 676 printf("%s%d: port %d status: %08x\n", 677 periph->periph_name, periph->unit_number, 678 softc->pm_step, res); 679 } 680 /* Report device speed if it is online. */ 681 if ((res & 0xf0f) == 0x103 && 682 xpt_create_path(&dpath, periph, 683 xpt_path_path_id(periph->path), 684 softc->pm_step, 0) == CAM_REQ_CMP) { 685 bzero(&cts, sizeof(cts)); 686 xpt_setup_ccb(&cts.ccb_h, dpath, CAM_PRIORITY_NONE); 687 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 688 cts.type = CTS_TYPE_CURRENT_SETTINGS; 689 cts.xport_specific.sata.revision = (res & 0x0f0) >> 4; 690 cts.xport_specific.sata.valid = CTS_SATA_VALID_REVISION; 691 cts.xport_specific.sata.caps = softc->caps & 692 (CTS_SATA_CAPS_H_PMREQ | 693 CTS_SATA_CAPS_H_DMAAA | 694 CTS_SATA_CAPS_H_AN); 695 cts.xport_specific.sata.valid |= CTS_SATA_VALID_CAPS; 696 xpt_action((union ccb *)&cts); 697 xpt_free_path(dpath); 698 } 699 softc->found |= (1 << softc->pm_step); 700 softc->pm_step++; 701 } else { 702 if (softc->pm_try < 10) { 703 cam_freeze_devq(periph->path); 704 cam_release_devq(periph->path, 705 RELSIM_RELEASE_AFTER_TIMEOUT, 706 /*reduction*/0, 707 /*timeout*/10, 708 /*getcount_only*/0); 709 softc->pm_try++; 710 } else { 711 if (bootverbose) { 712 printf("%s%d: port %d status: %08x\n", 713 periph->periph_name, periph->unit_number, 714 softc->pm_step, res); 715 } 716 softc->found &= ~(1 << softc->pm_step); 717 if (xpt_create_path(&dpath, periph, 718 done_ccb->ccb_h.path_id, 719 softc->pm_step, 0) == CAM_REQ_CMP) { 720 xpt_async(AC_LOST_DEVICE, dpath, NULL); 721 xpt_free_path(dpath); 722 } 723 softc->pm_step++; 724 } 725 } 726 if (softc->pm_step >= softc->pm_ports) { 727 if (softc->reset & softc->found) { 728 cam_freeze_devq(periph->path); 729 cam_release_devq(periph->path, 730 RELSIM_RELEASE_AFTER_TIMEOUT, 731 /*reduction*/0, 732 /*timeout*/1000, 733 /*getcount_only*/0); 734 } 735 softc->state = PMP_STATE_CLEAR; 736 softc->pm_step = 0; 737 } 738 xpt_release_ccb(done_ccb); 739 xpt_schedule(periph, priority); 740 return; 741 case PMP_STATE_CLEAR: 742 softc->pm_step++; 743 if (softc->pm_step >= softc->pm_ports) { 744 softc->state = PMP_STATE_CONFIG; 745 softc->pm_step = 0; 746 } 747 xpt_release_ccb(done_ccb); 748 xpt_schedule(periph, priority); 749 return; 750 case PMP_STATE_CONFIG: 751 for (i = 0; i < softc->pm_ports; i++) { 752 union ccb *ccb; 753 754 if ((softc->found & (1 << i)) == 0) 755 continue; 756 if (xpt_create_path(&dpath, periph, 757 xpt_path_path_id(periph->path), 758 i, 0) != CAM_REQ_CMP) { 759 printf("pmpdone: xpt_create_path failed\n"); 760 continue; 761 } 762 /* If we did hard reset to this device, inform XPT. */ 763 if ((softc->reset & softc->found & (1 << i)) != 0) 764 xpt_async(AC_SENT_BDR, dpath, NULL); 765 /* If rescan requested, scan this device. */ 766 if (softc->events & PMP_EV_RESCAN) { 767 ccb = xpt_alloc_ccb_nowait(); 768 if (ccb == NULL) { 769 xpt_free_path(dpath); 770 goto done; 771 } 772 xpt_setup_ccb(&ccb->ccb_h, dpath, CAM_PRIORITY_XPT); 773 xpt_rescan(ccb); 774 } else 775 xpt_free_path(dpath); 776 } 777 break; 778 default: 779 break; 780 } 781done: 782 xpt_release_ccb(done_ccb); 783 softc->state = PMP_STATE_NORMAL; 784 softc->events = 0; 785 xpt_release_boot(); 786 pmprelease(periph, -1); 787 cam_periph_release_locked(periph); 788} 789 790#endif /* _KERNEL */ 791