1 /* 2 * Copyright (c) 2009 The DragonFly Project. All rights reserved. 3 * 4 * This code is derived from software contributed to The DragonFly Project 5 * by Matthew Dillon <dillon@backplane.com> 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * 3. Neither the name of The DragonFly Project nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific, prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * 35 * Copyright (c) 2007 David Gwynne <dlg@openbsd.org> 36 * 37 * Permission to use, copy, modify, and distribute this software for any 38 * purpose with or without fee is hereby granted, provided that the above 39 * copyright notice and this permission notice appear in all copies. 40 * 41 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 42 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 43 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 44 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 45 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 46 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 47 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 48 * 49 * $OpenBSD: atascsi.c,v 1.64 2009/02/16 21:19:06 miod Exp $ 50 * $DragonFly$ 51 */ 52 /* 53 * Implement each SATA port as its own SCSI bus on CAM. This way we can 54 * implement future port multiplier features as individual devices on the 55 * bus. 56 * 57 * Much of the cdb<->xa conversion code was taken from OpenBSD, the rest 58 * was written natively for DragonFly. 59 */ 60 61 #include "sili.h" 62 63 const char *ScsiTypeArray[32] = { 64 "DIRECT", 65 "SEQUENTIAL", 66 "PRINTER", 67 "PROCESSOR", 68 "WORM", 69 "CDROM", 70 "SCANNER", 71 "OPTICAL", 72 "CHANGER", 73 "COMM", 74 "ASC0", 75 "ASC1", 76 "STORARRAY", 77 "ENCLOSURE", 78 "RBC", 79 "OCRW", 80 "0x10", 81 "OSD", 82 "ADC", 83 "0x13", 84 "0x14", 85 "0x15", 86 "0x16", 87 "0x17", 88 "0x18", 89 "0x19", 90 "0x1A", 91 "0x1B", 92 "0x1C", 93 "0x1D", 94 "0x1E", 95 "NODEVICE" 96 }; 97 98 static void sili_xpt_action(struct cam_sim *sim, union ccb *ccb); 99 static void sili_xpt_poll(struct cam_sim *sim); 100 static void sili_xpt_scsi_disk_io(struct sili_port *ap, 101 struct ata_port *at, union ccb *ccb); 102 static void sili_xpt_scsi_atapi_io(struct sili_port *ap, 103 struct ata_port *at, union ccb *ccb); 104 105 static void sili_ata_complete_disk_rw(struct ata_xfer *xa); 106 static void sili_ata_complete_disk_synchronize_cache(struct ata_xfer *xa); 107 static void sili_atapi_complete_cmd(struct ata_xfer *xa); 108 static void sili_ata_dummy_sense(struct scsi_sense_data *sense_data); 109 static void sili_ata_atapi_sense(struct ata_fis_d2h *rfis, 110 struct scsi_sense_data *sense_data); 111 112 static int sili_cam_probe_disk(struct sili_port *ap, struct ata_port *at); 113 static int sili_cam_probe_atapi(struct sili_port *ap, struct ata_port *at); 114 static void sili_ata_dummy_done(struct ata_xfer *xa); 115 static void ata_fix_identify(struct ata_identify *id); 116 static void sili_cam_rescan(struct sili_port *ap); 117 118 int 119 sili_cam_attach(struct sili_port *ap) 120 { 121 struct cam_devq *devq; 122 struct cam_sim *sim; 123 int error; 124 int unit; 125 126 /* 127 * We want at least one ccb to be available for error processing 128 * so don't let CAM use more then ncmds - 1. 129 */ 130 unit = device_get_unit(ap->ap_sc->sc_dev); 131 if (ap->ap_sc->sc_ncmds > 1) 132 devq = cam_simq_alloc(ap->ap_sc->sc_ncmds - 1); 133 else 134 devq = cam_simq_alloc(ap->ap_sc->sc_ncmds); 135 if (devq == NULL) { 136 return (ENOMEM); 137 } 138 sim = cam_sim_alloc(sili_xpt_action, sili_xpt_poll, "sili", 139 (void *)ap, unit, &sim_mplock, 1, 1, devq); 140 cam_simq_release(devq); 141 if (sim == NULL) { 142 return (ENOMEM); 143 } 144 ap->ap_sim = sim; 145 sili_os_unlock_port(ap); 146 error = xpt_bus_register(ap->ap_sim, ap->ap_num); 147 sili_os_lock_port(ap); 148 if (error != CAM_SUCCESS) { 149 sili_cam_detach(ap); 150 return (EINVAL); 151 } 152 ap->ap_flags |= AP_F_BUS_REGISTERED; 153 154 if (ap->ap_probe == ATA_PROBE_NEED_IDENT) 155 error = sili_cam_probe(ap, NULL); 156 else 157 error = 0; 158 if (error) { 159 sili_cam_detach(ap); 160 return (EIO); 161 } 162 ap->ap_flags |= AP_F_CAM_ATTACHED; 163 164 return(0); 165 } 166 167 /* 168 * The state of the port has changed. 169 * 170 * If at is NULL the physical port has changed state. 171 * If at is non-NULL a particular target behind a PM has changed state. 172 * 173 * If found is -1 the target state must be queued to a non-interrupt context. 174 * (only works with at == NULL). 175 * 176 * If found is 0 the target was removed. 177 * If found is 1 the target was inserted. 178 */ 179 void 180 sili_cam_changed(struct sili_port *ap, struct ata_port *atx, int found) 181 { 182 struct cam_path *tmppath; 183 int status; 184 int target; 185 186 target = atx ? atx->at_target : CAM_TARGET_WILDCARD; 187 188 if (ap->ap_sim == NULL) 189 return; 190 if (found == CAM_TARGET_WILDCARD) { 191 status = xpt_create_path(&tmppath, NULL, 192 cam_sim_path(ap->ap_sim), 193 target, CAM_LUN_WILDCARD); 194 if (status != CAM_REQ_CMP) 195 return; 196 sili_cam_rescan(ap); 197 } else { 198 status = xpt_create_path(&tmppath, NULL, 199 cam_sim_path(ap->ap_sim), 200 target, 201 CAM_LUN_WILDCARD); 202 if (status != CAM_REQ_CMP) 203 return; 204 #if 0 205 /* 206 * This confuses CAM 207 */ 208 if (found) 209 xpt_async(AC_FOUND_DEVICE, tmppath, NULL); 210 else 211 xpt_async(AC_LOST_DEVICE, tmppath, NULL); 212 #endif 213 } 214 xpt_free_path(tmppath); 215 } 216 217 void 218 sili_cam_detach(struct sili_port *ap) 219 { 220 int error; 221 222 if ((ap->ap_flags & AP_F_CAM_ATTACHED) == 0) 223 return; 224 get_mplock(); 225 if (ap->ap_sim) { 226 xpt_freeze_simq(ap->ap_sim, 1); 227 } 228 if (ap->ap_flags & AP_F_BUS_REGISTERED) { 229 error = xpt_bus_deregister(cam_sim_path(ap->ap_sim)); 230 KKASSERT(error == CAM_REQ_CMP); 231 ap->ap_flags &= ~AP_F_BUS_REGISTERED; 232 } 233 if (ap->ap_sim) { 234 cam_sim_free(ap->ap_sim); 235 ap->ap_sim = NULL; 236 } 237 rel_mplock(); 238 ap->ap_flags &= ~AP_F_CAM_ATTACHED; 239 } 240 241 /* 242 * Once the SILI port has been attached we need to probe for a device or 243 * devices on the port and setup various options. 244 * 245 * If at is NULL we are probing the direct-attached device on the port, 246 * which may or may not be a port multiplier. 247 */ 248 int 249 sili_cam_probe(struct sili_port *ap, struct ata_port *atx) 250 { 251 struct ata_port *at; 252 struct ata_xfer *xa; 253 u_int64_t capacity; 254 u_int64_t capacity_bytes; 255 int model_len; 256 int error; 257 int devncqdepth; 258 int i; 259 const char *wcstr; 260 const char *rastr; 261 const char *scstr; 262 const char *type; 263 264 error = EIO; 265 266 /* 267 * Delayed CAM attachment for initial probe, sim may be NULL 268 */ 269 if (ap->ap_sim == NULL) 270 return(0); 271 272 /* 273 * A NULL atx indicates a probe of the directly connected device. 274 * A non-NULL atx indicates a device connected via a port multiplier. 275 * We need to preserve atx for calls to sili_ata_get_xfer(). 276 * 277 * at is always non-NULL. For directly connected devices we supply 278 * an (at) pointing to target 0. 279 */ 280 if (atx == NULL) { 281 at = ap->ap_ata; /* direct attached - device 0 */ 282 if (ap->ap_type == ATA_PORT_T_PM) { 283 kprintf("%s: Found Port Multiplier\n", 284 ATANAME(ap, atx)); 285 return (0); 286 } 287 at->at_type = ap->ap_type; 288 } else { 289 at = atx; 290 if (atx->at_type == ATA_PORT_T_PM) { 291 kprintf("%s: Bogus device, reducing port count to %d\n", 292 ATANAME(ap, atx), atx->at_target); 293 if (ap->ap_pmcount > atx->at_target) 294 ap->ap_pmcount = atx->at_target; 295 goto err; 296 } 297 } 298 if (ap->ap_type == ATA_PORT_T_NONE) 299 goto err; 300 if (at->at_type == ATA_PORT_T_NONE) 301 goto err; 302 303 /* 304 * Issue identify, saving the result 305 */ 306 xa = sili_ata_get_xfer(ap, atx); 307 xa->complete = sili_ata_dummy_done; 308 xa->data = &at->at_identify; 309 xa->datalen = sizeof(at->at_identify); 310 xa->flags = ATA_F_READ | ATA_F_PIO | ATA_F_POLL; 311 xa->fis->flags = ATA_H2D_FLAGS_CMD | at->at_target; 312 313 switch(at->at_type) { 314 case ATA_PORT_T_DISK: 315 xa->fis->command = ATA_C_IDENTIFY; 316 type = "DISK"; 317 break; 318 case ATA_PORT_T_ATAPI: 319 xa->fis->command = ATA_C_ATAPI_IDENTIFY; 320 xa->flags |= ATA_F_AUTOSENSE; 321 type = "ATAPI"; 322 break; 323 default: 324 xa->fis->command = ATA_C_ATAPI_IDENTIFY; 325 type = "UNKNOWN(ATAPI?)"; 326 break; 327 } 328 xa->fis->features = 0; 329 xa->fis->device = 0; 330 xa->timeout = 1000; 331 332 if (sili_ata_cmd(xa) != ATA_S_COMPLETE) { 333 kprintf("%s: Detected %s device but unable to IDENTIFY\n", 334 ATANAME(ap, atx), type); 335 sili_ata_put_xfer(xa); 336 goto err; 337 } 338 sili_ata_put_xfer(xa); 339 340 ata_fix_identify(&at->at_identify); 341 342 /* 343 * Read capacity using SATA probe info. 344 */ 345 if (le16toh(at->at_identify.cmdset83) & 0x0400) { 346 /* LBA48 feature set supported */ 347 capacity = 0; 348 for (i = 3; i >= 0; --i) { 349 capacity <<= 16; 350 capacity += 351 le16toh(at->at_identify.addrsecxt[i]); 352 } 353 } else { 354 capacity = le16toh(at->at_identify.addrsec[1]); 355 capacity <<= 16; 356 capacity += le16toh(at->at_identify.addrsec[0]); 357 } 358 at->at_capacity = capacity; 359 if (atx == NULL) 360 ap->ap_probe = ATA_PROBE_GOOD; 361 362 capacity_bytes = capacity * 512; 363 364 /* 365 * Negotiate NCQ, throw away any ata_xfer's beyond the negotiated 366 * number of slots and limit the number of CAM ccb's to one less 367 * so we always have a slot available for recovery. 368 * 369 * NCQ is not used if ap_ncqdepth is 1 or the host controller does 370 * not support it, and in that case the driver can handle extra 371 * ccb's. 372 * 373 * NCQ is currently used only with direct-attached disks. It is 374 * not used with port multipliers or direct-attached ATAPI devices. 375 * 376 * Remember at least one extra CCB needs to be reserved for the 377 * error ccb. 378 */ 379 if ((ap->ap_sc->sc_flags & SILI_F_NCQ) && 380 at->at_type == ATA_PORT_T_DISK && 381 (le16toh(at->at_identify.satacap) & (1 << 8))) { 382 at->at_ncqdepth = (le16toh(at->at_identify.qdepth) & 0x1F) + 1; 383 devncqdepth = at->at_ncqdepth; 384 if (at->at_ncqdepth > ap->ap_sc->sc_ncmds) 385 at->at_ncqdepth = ap->ap_sc->sc_ncmds; 386 if (at->at_ncqdepth > 1) { 387 for (i = 0; i < ap->ap_sc->sc_ncmds; ++i) { 388 xa = sili_ata_get_xfer(ap, atx); 389 if (xa->tag < at->at_ncqdepth) { 390 xa->state = ATA_S_COMPLETE; 391 sili_ata_put_xfer(xa); 392 } 393 } 394 if (at->at_ncqdepth >= ap->ap_sc->sc_ncmds) { 395 cam_devq_resize(ap->ap_sim->devq, 396 at->at_ncqdepth - 1); 397 } 398 } 399 } else { 400 devncqdepth = 0; 401 } 402 403 /* 404 * Make the model string a bit more presentable 405 */ 406 for (model_len = 40; model_len; --model_len) { 407 if (at->at_identify.model[model_len-1] == ' ') 408 continue; 409 if (at->at_identify.model[model_len-1] == 0) 410 continue; 411 break; 412 } 413 414 /* 415 * Generate informatiive strings. 416 * 417 * NOTE: We do not automatically set write caching, lookahead, 418 * or the security state for ATAPI devices. 419 */ 420 if (at->at_identify.cmdset82 & ATA_IDENTIFY_WRITECACHE) { 421 if (at->at_identify.features85 & ATA_IDENTIFY_WRITECACHE) 422 wcstr = "enabled"; 423 else if (at->at_type == ATA_PORT_T_ATAPI) 424 wcstr = "disabled"; 425 else 426 wcstr = "enabling"; 427 } else { 428 wcstr = "notsupp"; 429 } 430 431 if (at->at_identify.cmdset82 & ATA_IDENTIFY_LOOKAHEAD) { 432 if (at->at_identify.features85 & ATA_IDENTIFY_LOOKAHEAD) 433 rastr = "enabled"; 434 else if (at->at_type == ATA_PORT_T_ATAPI) 435 rastr = "disabled"; 436 else 437 rastr = "enabling"; 438 } else { 439 rastr = "notsupp"; 440 } 441 442 if (at->at_identify.cmdset82 & ATA_IDENTIFY_SECURITY) { 443 if (at->at_identify.securestatus & ATA_SECURE_FROZEN) 444 scstr = "frozen"; 445 else if (at->at_type == ATA_PORT_T_ATAPI) 446 scstr = "unfrozen"; 447 else if (SiliNoFeatures & (1 << ap->ap_num)) 448 scstr = "<disabled>"; 449 else 450 scstr = "freezing"; 451 } else { 452 scstr = "notsupp"; 453 } 454 455 kprintf("%s: Found %s \"%*.*s %8.8s\" serial=\"%20.20s\"\n" 456 "%s: tags=%d/%d satacap=%04x satafea=%04x NCQ=%s " 457 "capacity=%lld.%02dMB\n", 458 459 ATANAME(ap, atx), 460 type, 461 model_len, model_len, 462 at->at_identify.model, 463 at->at_identify.firmware, 464 at->at_identify.serial, 465 466 ATANAME(ap, atx), 467 devncqdepth, ap->ap_sc->sc_ncmds, 468 at->at_identify.satacap, 469 at->at_identify.satafsup, 470 (at->at_ncqdepth > 1 ? "YES" : "NO"), 471 (long long)capacity_bytes / (1024 * 1024), 472 (int)(capacity_bytes % (1024 * 1024)) * 100 / (1024 * 1024) 473 ); 474 kprintf("%s: f85=%04x f86=%04x f87=%04x WC=%s RA=%s SEC=%s\n", 475 ATANAME(ap, atx), 476 at->at_identify.features85, 477 at->at_identify.features86, 478 at->at_identify.features87, 479 wcstr, 480 rastr, 481 scstr 482 ); 483 484 /* 485 * Additional type-specific probing 486 */ 487 switch(at->at_type) { 488 case ATA_PORT_T_DISK: 489 error = sili_cam_probe_disk(ap, atx); 490 break; 491 case ATA_PORT_T_ATAPI: 492 error = sili_cam_probe_atapi(ap, atx); 493 break; 494 default: 495 error = EIO; 496 break; 497 } 498 err: 499 if (error) { 500 at->at_probe = ATA_PROBE_FAILED; 501 if (atx == NULL) 502 ap->ap_probe = at->at_probe; 503 } else { 504 at->at_probe = ATA_PROBE_GOOD; 505 if (atx == NULL) 506 ap->ap_probe = at->at_probe; 507 } 508 return (error); 509 } 510 511 /* 512 * DISK-specific probe after initial ident 513 */ 514 static int 515 sili_cam_probe_disk(struct sili_port *ap, struct ata_port *atx) 516 { 517 struct ata_port *at; 518 struct ata_xfer *xa; 519 520 at = atx ? atx : ap->ap_ata; 521 522 /* 523 * Enable write cache if supported 524 * 525 * NOTE: "WD My Book" external disk devices have a very poor 526 * daughter board between the the ESATA and the HD. Sending 527 * any ATA_C_SET_FEATURES commands will break the hardware port 528 * with a fatal protocol error. However, this device also 529 * indicates that WRITECACHE is already on and READAHEAD is 530 * not supported so we avoid the issue. 531 */ 532 if ((at->at_identify.cmdset82 & ATA_IDENTIFY_WRITECACHE) && 533 (at->at_identify.features85 & ATA_IDENTIFY_WRITECACHE) == 0) { 534 xa = sili_ata_get_xfer(ap, atx); 535 xa->complete = sili_ata_dummy_done; 536 xa->fis->command = ATA_C_SET_FEATURES; 537 /*xa->fis->features = ATA_SF_WRITECACHE_EN;*/ 538 xa->fis->features = ATA_SF_LOOKAHEAD_EN; 539 xa->fis->flags = ATA_H2D_FLAGS_CMD | at->at_target; 540 xa->fis->device = 0; 541 xa->flags = ATA_F_READ | ATA_F_PIO | ATA_F_POLL; 542 xa->timeout = 1000; 543 xa->datalen = 0; 544 if (sili_ata_cmd(xa) == ATA_S_COMPLETE) 545 at->at_features |= ATA_PORT_F_WCACHE; 546 else 547 kprintf("%s: Unable to enable write-caching\n", 548 ATANAME(ap, atx)); 549 sili_ata_put_xfer(xa); 550 } 551 552 /* 553 * Enable readahead if supported 554 */ 555 if ((at->at_identify.cmdset82 & ATA_IDENTIFY_LOOKAHEAD) && 556 (at->at_identify.features85 & ATA_IDENTIFY_LOOKAHEAD) == 0) { 557 xa = sili_ata_get_xfer(ap, atx); 558 xa->complete = sili_ata_dummy_done; 559 xa->fis->command = ATA_C_SET_FEATURES; 560 xa->fis->features = ATA_SF_LOOKAHEAD_EN; 561 xa->fis->flags = ATA_H2D_FLAGS_CMD | at->at_target; 562 xa->fis->device = 0; 563 xa->flags = ATA_F_READ | ATA_F_PIO | ATA_F_POLL; 564 xa->timeout = 1000; 565 xa->datalen = 0; 566 if (sili_ata_cmd(xa) == ATA_S_COMPLETE) 567 at->at_features |= ATA_PORT_F_RAHEAD; 568 else 569 kprintf("%s: Unable to enable read-ahead\n", 570 ATANAME(ap, atx)); 571 sili_ata_put_xfer(xa); 572 } 573 574 /* 575 * FREEZE LOCK the device so malicious users can't lock it on us. 576 * As there is no harm in issuing this to devices that don't 577 * support the security feature set we just send it, and don't bother 578 * checking if the device sends a command abort to tell us it doesn't 579 * support it 580 */ 581 if ((at->at_identify.cmdset82 & ATA_IDENTIFY_SECURITY) && 582 (at->at_identify.securestatus & ATA_SECURE_FROZEN) == 0 && 583 (SiliNoFeatures & (1 << ap->ap_num)) == 0) { 584 xa = sili_ata_get_xfer(ap, atx); 585 xa->complete = sili_ata_dummy_done; 586 xa->fis->command = ATA_C_SEC_FREEZE_LOCK; 587 xa->fis->flags = ATA_H2D_FLAGS_CMD | at->at_target; 588 xa->flags = ATA_F_READ | ATA_F_PIO | ATA_F_POLL; 589 xa->timeout = 1000; 590 xa->datalen = 0; 591 if (sili_ata_cmd(xa) == ATA_S_COMPLETE) 592 at->at_features |= ATA_PORT_F_FRZLCK; 593 else 594 kprintf("%s: Unable to set security freeze\n", 595 ATANAME(ap, atx)); 596 sili_ata_put_xfer(xa); 597 } 598 599 return (0); 600 } 601 602 /* 603 * ATAPI-specific probe after initial ident 604 */ 605 static int 606 sili_cam_probe_atapi(struct sili_port *ap, struct ata_port *atx) 607 { 608 return(0); 609 } 610 611 /* 612 * Fix byte ordering so buffers can be accessed as 613 * strings. 614 */ 615 static void 616 ata_fix_identify(struct ata_identify *id) 617 { 618 u_int16_t *swap; 619 int i; 620 621 swap = (u_int16_t *)id->serial; 622 for (i = 0; i < sizeof(id->serial) / sizeof(u_int16_t); i++) 623 swap[i] = bswap16(swap[i]); 624 625 swap = (u_int16_t *)id->firmware; 626 for (i = 0; i < sizeof(id->firmware) / sizeof(u_int16_t); i++) 627 swap[i] = bswap16(swap[i]); 628 629 swap = (u_int16_t *)id->model; 630 for (i = 0; i < sizeof(id->model) / sizeof(u_int16_t); i++) 631 swap[i] = bswap16(swap[i]); 632 } 633 634 /* 635 * Dummy done callback for xa. 636 */ 637 static void 638 sili_ata_dummy_done(struct ata_xfer *xa) 639 { 640 } 641 642 /* 643 * Use an engineering request to initiate a target scan for devices 644 * behind a port multiplier. 645 * 646 * An asynchronous bus scan is used to avoid reentrancy issues. 647 */ 648 static void 649 sili_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb) 650 { 651 struct sili_port *ap = ccb->ccb_h.sim_priv.entries[0].ptr; 652 653 if (ccb->ccb_h.func_code == XPT_SCAN_BUS) { 654 ap->ap_flags &= ~AP_F_SCAN_RUNNING; 655 if (ap->ap_flags & AP_F_SCAN_REQUESTED) { 656 ap->ap_flags &= ~AP_F_SCAN_REQUESTED; 657 sili_cam_rescan(ap); 658 } 659 ap->ap_flags |= AP_F_SCAN_COMPLETED; 660 wakeup(&ap->ap_flags); 661 } 662 xpt_free_ccb(ccb); 663 } 664 665 static void 666 sili_cam_rescan(struct sili_port *ap) 667 { 668 struct cam_path *path; 669 union ccb *ccb; 670 int status; 671 int i; 672 673 if (ap->ap_flags & AP_F_SCAN_RUNNING) { 674 ap->ap_flags |= AP_F_SCAN_REQUESTED; 675 return; 676 } 677 ap->ap_flags |= AP_F_SCAN_RUNNING; 678 for (i = 0; i < SILI_MAX_PMPORTS; ++i) { 679 ap->ap_ata[i].at_features |= ATA_PORT_F_RESCAN; 680 } 681 682 status = xpt_create_path(&path, xpt_periph, cam_sim_path(ap->ap_sim), 683 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 684 if (status != CAM_REQ_CMP) 685 return; 686 687 ccb = xpt_alloc_ccb(); 688 xpt_setup_ccb(&ccb->ccb_h, path, 5); /* 5 = low priority */ 689 ccb->ccb_h.func_code = XPT_ENG_EXEC; 690 ccb->ccb_h.cbfcnp = sili_cam_rescan_callback; 691 ccb->ccb_h.sim_priv.entries[0].ptr = ap; 692 ccb->crcn.flags = CAM_FLAG_NONE; 693 xpt_action_async(ccb); 694 } 695 696 static void 697 sili_xpt_rescan(struct sili_port *ap) 698 { 699 struct cam_path *path; 700 union ccb *ccb; 701 int status; 702 703 status = xpt_create_path(&path, xpt_periph, cam_sim_path(ap->ap_sim), 704 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 705 if (status != CAM_REQ_CMP) 706 return; 707 708 ccb = xpt_alloc_ccb(); 709 xpt_setup_ccb(&ccb->ccb_h, path, 5); /* 5 = low priority */ 710 ccb->ccb_h.func_code = XPT_SCAN_BUS; 711 ccb->ccb_h.cbfcnp = sili_cam_rescan_callback; 712 ccb->ccb_h.sim_priv.entries[0].ptr = ap; 713 ccb->crcn.flags = CAM_FLAG_NONE; 714 xpt_action_async(ccb); 715 } 716 717 /* 718 * Action function - dispatch command 719 */ 720 static 721 void 722 sili_xpt_action(struct cam_sim *sim, union ccb *ccb) 723 { 724 struct sili_port *ap; 725 struct ata_port *at, *atx; 726 struct ccb_hdr *ccbh; 727 int unit; 728 729 /* XXX lock */ 730 ap = cam_sim_softc(sim); 731 at = ap->ap_ata; 732 atx = NULL; 733 KKASSERT(ap != NULL); 734 ccbh = &ccb->ccb_h; 735 unit = cam_sim_unit(sim); 736 737 /* 738 * Early failure checks. These checks do not apply to XPT_PATH_INQ, 739 * otherwise the bus rescan will not remove the dead devices when 740 * unplugging a PM. 741 * 742 * For non-wildcards we have one target (0) and one lun (0), 743 * unless we have a port multiplier. 744 * 745 * A wildcard target indicates only the general bus is being 746 * probed. 747 * 748 * Calculate at and atx. at is always non-NULL. atx is only 749 * non-NULL for direct-attached devices. It will be NULL for 750 * devices behind a port multiplier. 751 * 752 * XXX What do we do with a LUN wildcard? 753 */ 754 if (ccbh->target_id != CAM_TARGET_WILDCARD && 755 ccbh->func_code != XPT_PATH_INQ) { 756 if (ap->ap_type == ATA_PORT_T_NONE) { 757 ccbh->status = CAM_DEV_NOT_THERE; 758 xpt_done(ccb); 759 return; 760 } 761 if (ccbh->target_id < 0 || ccbh->target_id >= ap->ap_pmcount) { 762 ccbh->status = CAM_DEV_NOT_THERE; 763 xpt_done(ccb); 764 return; 765 } 766 at += ccbh->target_id; 767 if (ap->ap_type == ATA_PORT_T_PM) 768 atx = at; 769 770 if (ccbh->target_lun != CAM_LUN_WILDCARD && ccbh->target_lun) { 771 ccbh->status = CAM_DEV_NOT_THERE; 772 xpt_done(ccb); 773 return; 774 } 775 } 776 777 /* 778 * Switch on the meta XPT command 779 */ 780 switch(ccbh->func_code) { 781 case XPT_ENG_EXEC: 782 /* 783 * This routine is called after a port multiplier has been 784 * probed. 785 */ 786 ccbh->status = CAM_REQ_CMP; 787 sili_os_lock_port(ap); 788 sili_port_state_machine(ap, 0); 789 sili_os_unlock_port(ap); 790 xpt_done(ccb); 791 sili_xpt_rescan(ap); 792 break; 793 case XPT_PATH_INQ: 794 /* 795 * This command always succeeds, otherwise the bus scan 796 * will not detach dead devices. 797 */ 798 ccb->cpi.version_num = 1; 799 ccb->cpi.hba_inquiry = 0; 800 ccb->cpi.target_sprt = 0; 801 ccb->cpi.hba_misc = PIM_SEQSCAN; 802 ccb->cpi.hba_eng_cnt = 0; 803 bzero(ccb->cpi.vuhba_flags, sizeof(ccb->cpi.vuhba_flags)); 804 ccb->cpi.max_target = SILI_MAX_PMPORTS - 1; 805 ccb->cpi.max_lun = 0; 806 ccb->cpi.async_flags = 0; 807 ccb->cpi.hpath_id = 0; 808 ccb->cpi.initiator_id = SILI_MAX_PMPORTS - 1; 809 ccb->cpi.unit_number = cam_sim_unit(sim); 810 ccb->cpi.bus_id = cam_sim_bus(sim); 811 ccb->cpi.base_transfer_speed = 150000; 812 ccb->cpi.transport = XPORT_SATA; 813 ccb->cpi.transport_version = 1; 814 ccb->cpi.protocol = PROTO_SCSI; 815 ccb->cpi.protocol_version = SCSI_REV_2; 816 817 ccbh->status = CAM_REQ_CMP; 818 if (ccbh->target_id == CAM_TARGET_WILDCARD) { 819 sili_os_lock_port(ap); 820 sili_port_state_machine(ap, 0); 821 sili_os_unlock_port(ap); 822 } else { 823 switch(sili_pread(ap, SILI_PREG_SSTS) & 824 SILI_PREG_SSTS_SPD) { 825 case SILI_PREG_SSTS_SPD_GEN1: 826 ccb->cpi.base_transfer_speed = 150000; 827 break; 828 case SILI_PREG_SSTS_SPD_GEN2: 829 ccb->cpi.base_transfer_speed = 300000; 830 break; 831 default: 832 /* unknown */ 833 ccb->cpi.base_transfer_speed = 1000; 834 break; 835 } 836 #if 0 837 if (ap->ap_type == ATA_PORT_T_NONE) 838 ccbh->status = CAM_DEV_NOT_THERE; 839 #endif 840 } 841 xpt_done(ccb); 842 break; 843 case XPT_RESET_DEV: 844 sili_os_lock_port(ap); 845 if (ap->ap_type == ATA_PORT_T_NONE) { 846 ccbh->status = CAM_DEV_NOT_THERE; 847 } else { 848 sili_port_reset(ap, atx, 0); 849 ccbh->status = CAM_REQ_CMP; 850 } 851 sili_os_unlock_port(ap); 852 xpt_done(ccb); 853 break; 854 case XPT_RESET_BUS: 855 sili_os_lock_port(ap); 856 sili_port_reset(ap, NULL, 1); 857 sili_os_unlock_port(ap); 858 ccbh->status = CAM_REQ_CMP; 859 xpt_done(ccb); 860 break; 861 case XPT_SET_TRAN_SETTINGS: 862 ccbh->status = CAM_FUNC_NOTAVAIL; 863 xpt_done(ccb); 864 break; 865 case XPT_GET_TRAN_SETTINGS: 866 ccb->cts.protocol = PROTO_SCSI; 867 ccb->cts.protocol_version = SCSI_REV_2; 868 ccb->cts.transport = XPORT_SATA; 869 ccb->cts.transport_version = XPORT_VERSION_UNSPECIFIED; 870 ccb->cts.proto_specific.valid = 0; 871 ccb->cts.xport_specific.valid = 0; 872 ccbh->status = CAM_REQ_CMP; 873 xpt_done(ccb); 874 break; 875 case XPT_CALC_GEOMETRY: 876 cam_calc_geometry(&ccb->ccg, 1); 877 xpt_done(ccb); 878 break; 879 case XPT_SCSI_IO: 880 /* 881 * Our parallel startup code might have only probed through 882 * to the IDENT, so do the last step if necessary. 883 */ 884 if (at->at_probe == ATA_PROBE_NEED_IDENT) 885 sili_cam_probe(ap, atx); 886 if (at->at_probe != ATA_PROBE_GOOD) { 887 ccbh->status = CAM_DEV_NOT_THERE; 888 xpt_done(ccb); 889 break; 890 } 891 switch(at->at_type) { 892 case ATA_PORT_T_DISK: 893 sili_xpt_scsi_disk_io(ap, atx, ccb); 894 break; 895 case ATA_PORT_T_ATAPI: 896 sili_xpt_scsi_atapi_io(ap, atx, ccb); 897 break; 898 default: 899 ccbh->status = CAM_REQ_INVALID; 900 xpt_done(ccb); 901 break; 902 } 903 break; 904 default: 905 ccbh->status = CAM_REQ_INVALID; 906 xpt_done(ccb); 907 break; 908 } 909 } 910 911 /* 912 * Poll function. 913 * 914 * Generally this function gets called heavily when interrupts might be 915 * non-operational, during a halt/reboot or panic. 916 */ 917 static 918 void 919 sili_xpt_poll(struct cam_sim *sim) 920 { 921 struct sili_port *ap; 922 923 ap = cam_sim_softc(sim); 924 crit_enter(); 925 sili_os_lock_port(ap); 926 sili_port_intr(ap, 1); 927 sili_os_unlock_port(ap); 928 crit_exit(); 929 } 930 931 /* 932 * Convert the SCSI command in ccb to an ata_xfer command in xa 933 * for ATA_PORT_T_DISK operations. Set the completion function 934 * to convert the response back, then dispatch to the OpenBSD SILI 935 * layer. 936 * 937 * SILI DISK commands only support a limited command set, and we 938 * fake additional commands to make it play nice with the CAM subsystem. 939 */ 940 static 941 void 942 sili_xpt_scsi_disk_io(struct sili_port *ap, struct ata_port *atx, 943 union ccb *ccb) 944 { 945 struct ccb_hdr *ccbh; 946 struct ccb_scsiio *csio; 947 struct ata_xfer *xa; 948 struct ata_port *at; 949 struct ata_fis_h2d *fis; 950 scsi_cdb_t cdb; 951 union scsi_data *rdata; 952 int rdata_len; 953 u_int64_t capacity; 954 u_int64_t lba; 955 u_int32_t count; 956 957 ccbh = &ccb->csio.ccb_h; 958 csio = &ccb->csio; 959 at = atx ? atx : &ap->ap_ata[0]; 960 961 /* 962 * XXX not passing NULL at for direct attach! 963 */ 964 xa = sili_ata_get_xfer(ap, atx); 965 rdata = (void *)csio->data_ptr; 966 rdata_len = csio->dxfer_len; 967 968 /* 969 * Build the FIS or process the csio to completion. 970 */ 971 cdb = (void *)((ccbh->flags & CAM_CDB_POINTER) ? 972 csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes); 973 974 switch(cdb->generic.opcode) { 975 case REQUEST_SENSE: 976 /* 977 * Auto-sense everything, so explicit sense requests 978 * return no-sense. 979 */ 980 ccbh->status = CAM_SCSI_STATUS_ERROR; 981 break; 982 case INQUIRY: 983 /* 984 * Inquiry supported features 985 * 986 * [opcode, byte2, page_code, length, control] 987 */ 988 if (cdb->inquiry.byte2 & SI_EVPD) { 989 switch(cdb->inquiry.page_code) { 990 case SVPD_SUPPORTED_PAGE_LIST: 991 /* XXX atascsi_disk_vpd_supported */ 992 case SVPD_UNIT_SERIAL_NUMBER: 993 /* XXX atascsi_disk_vpd_serial */ 994 case SVPD_UNIT_DEVID: 995 /* XXX atascsi_disk_vpd_ident */ 996 default: 997 ccbh->status = CAM_FUNC_NOTAVAIL; 998 break; 999 } 1000 } else { 1001 bzero(rdata, rdata_len); 1002 if (rdata_len < SHORT_INQUIRY_LENGTH) { 1003 ccbh->status = CAM_CCB_LEN_ERR; 1004 break; 1005 } 1006 if (rdata_len > sizeof(rdata->inquiry_data)) 1007 rdata_len = sizeof(rdata->inquiry_data); 1008 rdata->inquiry_data.device = T_DIRECT; 1009 rdata->inquiry_data.version = SCSI_REV_SPC2; 1010 rdata->inquiry_data.response_format = 2; 1011 rdata->inquiry_data.additional_length = 32; 1012 bcopy("SATA ", rdata->inquiry_data.vendor, 8); 1013 bcopy(at->at_identify.model, 1014 rdata->inquiry_data.product, 1015 sizeof(rdata->inquiry_data.product)); 1016 bcopy(at->at_identify.firmware, 1017 rdata->inquiry_data.revision, 1018 sizeof(rdata->inquiry_data.revision)); 1019 ccbh->status = CAM_REQ_CMP; 1020 } 1021 break; 1022 case READ_CAPACITY_16: 1023 if (cdb->read_capacity_16.service_action != SRC16_SERVICE_ACTION) { 1024 ccbh->status = CAM_REQ_INVALID; 1025 break; 1026 } 1027 if (rdata_len < sizeof(rdata->read_capacity_data_16)) { 1028 ccbh->status = CAM_CCB_LEN_ERR; 1029 break; 1030 } 1031 /* fall through */ 1032 case READ_CAPACITY: 1033 if (rdata_len < sizeof(rdata->read_capacity_data)) { 1034 ccbh->status = CAM_CCB_LEN_ERR; 1035 break; 1036 } 1037 1038 capacity = at->at_capacity; 1039 1040 bzero(rdata, rdata_len); 1041 if (cdb->generic.opcode == READ_CAPACITY) { 1042 rdata_len = sizeof(rdata->read_capacity_data); 1043 if (capacity > 0xFFFFFFFFU) 1044 capacity = 0xFFFFFFFFU; 1045 bzero(&rdata->read_capacity_data, rdata_len); 1046 scsi_ulto4b((u_int32_t)capacity - 1, 1047 rdata->read_capacity_data.addr); 1048 scsi_ulto4b(512, rdata->read_capacity_data.length); 1049 } else { 1050 rdata_len = sizeof(rdata->read_capacity_data_16); 1051 bzero(&rdata->read_capacity_data_16, rdata_len); 1052 scsi_u64to8b(capacity - 1, 1053 rdata->read_capacity_data_16.addr); 1054 scsi_ulto4b(512, rdata->read_capacity_data_16.length); 1055 } 1056 ccbh->status = CAM_REQ_CMP; 1057 break; 1058 case SYNCHRONIZE_CACHE: 1059 /* 1060 * Synchronize cache. Specification says this can take 1061 * greater then 30 seconds so give it at least 45. 1062 */ 1063 fis = xa->fis; 1064 fis->flags = ATA_H2D_FLAGS_CMD; 1065 fis->command = ATA_C_FLUSH_CACHE; 1066 fis->device = 0; 1067 if (xa->timeout < 45000) 1068 xa->timeout = 45000; 1069 xa->datalen = 0; 1070 xa->flags = ATA_F_READ; 1071 xa->complete = sili_ata_complete_disk_synchronize_cache; 1072 break; 1073 case TEST_UNIT_READY: 1074 case START_STOP_UNIT: 1075 case PREVENT_ALLOW: 1076 /* 1077 * Just silently return success 1078 */ 1079 ccbh->status = CAM_REQ_CMP; 1080 rdata_len = 0; 1081 break; 1082 case ATA_PASS_12: 1083 case ATA_PASS_16: 1084 /* 1085 * XXX implement pass-through 1086 */ 1087 ccbh->status = CAM_FUNC_NOTAVAIL; 1088 break; 1089 default: 1090 switch(cdb->generic.opcode) { 1091 case READ_6: 1092 lba = scsi_3btoul(cdb->rw_6.addr) & 0x1FFFFF; 1093 count = cdb->rw_6.length ? cdb->rw_6.length : 0x100; 1094 xa->flags = ATA_F_READ; 1095 break; 1096 case READ_10: 1097 lba = scsi_4btoul(cdb->rw_10.addr); 1098 count = scsi_2btoul(cdb->rw_10.length); 1099 xa->flags = ATA_F_READ; 1100 break; 1101 case READ_12: 1102 lba = scsi_4btoul(cdb->rw_12.addr); 1103 count = scsi_4btoul(cdb->rw_12.length); 1104 xa->flags = ATA_F_READ; 1105 break; 1106 case READ_16: 1107 lba = scsi_8btou64(cdb->rw_16.addr); 1108 count = scsi_4btoul(cdb->rw_16.length); 1109 xa->flags = ATA_F_READ; 1110 break; 1111 case WRITE_6: 1112 lba = scsi_3btoul(cdb->rw_6.addr) & 0x1FFFFF; 1113 count = cdb->rw_6.length ? cdb->rw_6.length : 0x100; 1114 xa->flags = ATA_F_WRITE; 1115 break; 1116 case WRITE_10: 1117 lba = scsi_4btoul(cdb->rw_10.addr); 1118 count = scsi_2btoul(cdb->rw_10.length); 1119 xa->flags = ATA_F_WRITE; 1120 break; 1121 case WRITE_12: 1122 lba = scsi_4btoul(cdb->rw_12.addr); 1123 count = scsi_4btoul(cdb->rw_12.length); 1124 xa->flags = ATA_F_WRITE; 1125 break; 1126 case WRITE_16: 1127 lba = scsi_8btou64(cdb->rw_16.addr); 1128 count = scsi_4btoul(cdb->rw_16.length); 1129 xa->flags = ATA_F_WRITE; 1130 break; 1131 default: 1132 ccbh->status = CAM_REQ_INVALID; 1133 break; 1134 } 1135 if (ccbh->status != CAM_REQ_INPROG) 1136 break; 1137 1138 fis = xa->fis; 1139 fis->flags = ATA_H2D_FLAGS_CMD; 1140 fis->lba_low = (u_int8_t)lba; 1141 fis->lba_mid = (u_int8_t)(lba >> 8); 1142 fis->lba_high = (u_int8_t)(lba >> 16); 1143 fis->device = ATA_H2D_DEVICE_LBA; 1144 1145 /* 1146 * NCQ only for direct-attached disks, do not currently 1147 * try to use NCQ with port multipliers. 1148 * 1149 * XXX fixme SII chip can do NCQ w/ port multipliers. 1150 */ 1151 if (at->at_ncqdepth > 1 && 1152 at->at_type == ATA_PORT_T_DISK && 1153 (ap->ap_sc->sc_flags & SILI_F_NCQ) && 1154 (ccbh->flags & CAM_POLLED) == 0) { 1155 /* 1156 * Use NCQ - always uses 48 bit addressing 1157 */ 1158 xa->flags |= ATA_F_NCQ; 1159 fis->command = (xa->flags & ATA_F_WRITE) ? 1160 ATA_C_WRITE_FPDMA : ATA_C_READ_FPDMA; 1161 fis->lba_low_exp = (u_int8_t)(lba >> 24); 1162 fis->lba_mid_exp = (u_int8_t)(lba >> 32); 1163 fis->lba_high_exp = (u_int8_t)(lba >> 40); 1164 fis->sector_count = xa->tag << 3; 1165 fis->features = (u_int8_t)count; 1166 fis->features_exp = (u_int8_t)(count >> 8); 1167 } else if (count > 0x100 || lba > 0xFFFFFFFFU) { 1168 /* 1169 * Use LBA48 1170 */ 1171 fis->command = (xa->flags & ATA_F_WRITE) ? 1172 ATA_C_WRITEDMA_EXT : ATA_C_READDMA_EXT; 1173 fis->lba_low_exp = (u_int8_t)(lba >> 24); 1174 fis->lba_mid_exp = (u_int8_t)(lba >> 32); 1175 fis->lba_high_exp = (u_int8_t)(lba >> 40); 1176 fis->sector_count = (u_int8_t)count; 1177 fis->sector_count_exp = (u_int8_t)(count >> 8); 1178 } else { 1179 /* 1180 * Use LBA 1181 * 1182 * NOTE: 256 sectors is supported, stored as 0. 1183 */ 1184 fis->command = (xa->flags & ATA_F_WRITE) ? 1185 ATA_C_WRITEDMA : ATA_C_READDMA; 1186 fis->device |= (u_int8_t)(lba >> 24) & 0x0F; 1187 fis->sector_count = (u_int8_t)count; 1188 } 1189 1190 xa->data = csio->data_ptr; 1191 xa->datalen = csio->dxfer_len; 1192 xa->complete = sili_ata_complete_disk_rw; 1193 xa->timeout = ccbh->timeout; /* milliseconds */ 1194 if (ccbh->flags & CAM_POLLED) 1195 xa->flags |= ATA_F_POLL; 1196 break; 1197 } 1198 1199 /* 1200 * If the request is still in progress the xa and FIS have 1201 * been set up and must be dispatched. Otherwise the request 1202 * is complete. 1203 */ 1204 if (ccbh->status == CAM_REQ_INPROG) { 1205 KKASSERT(xa->complete != NULL); 1206 xa->atascsi_private = ccb; 1207 ccb->ccb_h.sim_priv.entries[0].ptr = ap; 1208 sili_os_lock_port(ap); 1209 fis->flags |= at->at_target; 1210 sili_ata_cmd(xa); 1211 sili_os_unlock_port(ap); 1212 } else { 1213 sili_ata_put_xfer(xa); 1214 xpt_done(ccb); 1215 } 1216 } 1217 1218 /* 1219 * Convert the SCSI command in ccb to an ata_xfer command in xa 1220 * for ATA_PORT_T_ATAPI operations. Set the completion function 1221 * to convert the response back, then dispatch to the OpenBSD SILI 1222 * layer. 1223 */ 1224 static 1225 void 1226 sili_xpt_scsi_atapi_io(struct sili_port *ap, struct ata_port *atx, 1227 union ccb *ccb) 1228 { 1229 struct ccb_hdr *ccbh; 1230 struct ccb_scsiio *csio; 1231 struct ata_xfer *xa; 1232 struct ata_fis_h2d *fis; 1233 scsi_cdb_t cdbs; 1234 scsi_cdb_t cdbd; 1235 int flags; 1236 struct ata_port *at; 1237 1238 ccbh = &ccb->csio.ccb_h; 1239 csio = &ccb->csio; 1240 at = atx ? atx : &ap->ap_ata[0]; 1241 1242 switch (ccbh->flags & CAM_DIR_MASK) { 1243 case CAM_DIR_IN: 1244 flags = ATA_F_PACKET | ATA_F_READ; 1245 break; 1246 case CAM_DIR_OUT: 1247 flags = ATA_F_PACKET | ATA_F_WRITE; 1248 break; 1249 case CAM_DIR_NONE: 1250 flags = ATA_F_PACKET; 1251 break; 1252 default: 1253 ccbh->status = CAM_REQ_INVALID; 1254 xpt_done(ccb); 1255 return; 1256 /* NOT REACHED */ 1257 } 1258 1259 /* 1260 * Special handling to get the rfis back into host memory while 1261 * still allowing the Sili chip to run commands in parallel to 1262 * ATAPI devices behind a PM. 1263 */ 1264 flags |= ATA_F_AUTOSENSE; 1265 1266 /* 1267 * The command has to fit in the packet command buffer. 1268 */ 1269 if (csio->cdb_len < 6 || csio->cdb_len > 16) { 1270 ccbh->status = CAM_CCB_LEN_ERR; 1271 xpt_done(ccb); 1272 return; 1273 } 1274 1275 /* 1276 * Initialize the XA and FIS. 1277 * 1278 * XXX not passing NULL at for direct attach! 1279 */ 1280 xa = sili_ata_get_xfer(ap, atx); 1281 fis = xa->fis; 1282 1283 fis->flags = ATA_H2D_FLAGS_CMD | at->at_target; 1284 fis->command = ATA_C_PACKET; 1285 fis->device = 0; 1286 fis->sector_count = xa->tag << 3; 1287 fis->features = ATA_H2D_FEATURES_DMA | 1288 ((flags & ATA_F_WRITE) ? 1289 ATA_H2D_FEATURES_DIR_WRITE : ATA_H2D_FEATURES_DIR_READ); 1290 fis->lba_mid = 0x00; 1291 fis->lba_high = 0x20; 1292 1293 xa->flags = flags; 1294 xa->data = csio->data_ptr; 1295 xa->datalen = csio->dxfer_len; 1296 xa->timeout = ccbh->timeout; /* milliseconds */ 1297 1298 if (ccbh->flags & CAM_POLLED) 1299 xa->flags |= ATA_F_POLL; 1300 1301 /* 1302 * Copy the cdb to the packetcmd buffer in the FIS using a 1303 * convenient pointer in the xa. 1304 */ 1305 cdbs = (void *)((ccbh->flags & CAM_CDB_POINTER) ? 1306 csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes); 1307 bcopy(cdbs, xa->packetcmd, csio->cdb_len); 1308 1309 #if 0 1310 kprintf("opcode %d cdb_len %d dxfer_len %d\n", 1311 cdbs->generic.opcode, 1312 csio->cdb_len, csio->dxfer_len); 1313 #endif 1314 1315 /* 1316 * Some ATAPI commands do not actually follow the SCSI standard. 1317 */ 1318 cdbd = (void *)xa->packetcmd; 1319 1320 switch(cdbd->generic.opcode) { 1321 case INQUIRY: 1322 /* 1323 * Some ATAPI devices can't handle SI_EVPD being set 1324 * for a basic inquiry (page_code == 0). 1325 * 1326 * Some ATAPI devices can't handle long inquiry lengths, 1327 * don't ask me why. Truncate the inquiry length. 1328 */ 1329 if ((cdbd->inquiry.byte2 & SI_EVPD) && 1330 cdbd->inquiry.page_code == 0) { 1331 cdbd->inquiry.byte2 &= ~SI_EVPD; 1332 } 1333 if (cdbd->inquiry.page_code == 0 && 1334 cdbd->inquiry.length > SHORT_INQUIRY_LENGTH) { 1335 cdbd->inquiry.length = SHORT_INQUIRY_LENGTH; 1336 } 1337 break; 1338 case READ_6: 1339 case WRITE_6: 1340 /* 1341 * Convert *_6 to *_10 commands. Most ATAPI devices 1342 * cannot handle the SCSI READ_6 and WRITE_6 commands. 1343 */ 1344 cdbd->rw_10.opcode |= 0x20; 1345 cdbd->rw_10.byte2 = 0; 1346 cdbd->rw_10.addr[0] = cdbs->rw_6.addr[0] & 0x1F; 1347 cdbd->rw_10.addr[1] = cdbs->rw_6.addr[1]; 1348 cdbd->rw_10.addr[2] = cdbs->rw_6.addr[2]; 1349 cdbd->rw_10.addr[3] = 0; 1350 cdbd->rw_10.reserved = 0; 1351 cdbd->rw_10.length[0] = 0; 1352 cdbd->rw_10.length[1] = cdbs->rw_6.length; 1353 cdbd->rw_10.control = cdbs->rw_6.control; 1354 break; 1355 default: 1356 break; 1357 } 1358 1359 /* 1360 * And dispatch 1361 */ 1362 xa->complete = sili_atapi_complete_cmd; 1363 xa->atascsi_private = ccb; 1364 ccb->ccb_h.sim_priv.entries[0].ptr = ap; 1365 sili_os_lock_port(ap); 1366 sili_ata_cmd(xa); 1367 sili_os_unlock_port(ap); 1368 } 1369 1370 /* 1371 * Completion function for ATA_PORT_T_DISK cache synchronization. 1372 */ 1373 static 1374 void 1375 sili_ata_complete_disk_synchronize_cache(struct ata_xfer *xa) 1376 { 1377 union ccb *ccb = xa->atascsi_private; 1378 struct ccb_hdr *ccbh = &ccb->ccb_h; 1379 struct sili_port *ap = ccb->ccb_h.sim_priv.entries[0].ptr; 1380 1381 switch(xa->state) { 1382 case ATA_S_COMPLETE: 1383 ccbh->status = CAM_REQ_CMP; 1384 ccb->csio.scsi_status = SCSI_STATUS_OK; 1385 break; 1386 case ATA_S_ERROR: 1387 kprintf("%s: synchronize_cache: error\n", 1388 ATANAME(ap, xa->at)); 1389 ccbh->status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 1390 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 1391 sili_ata_dummy_sense(&ccb->csio.sense_data); 1392 break; 1393 case ATA_S_TIMEOUT: 1394 kprintf("%s: synchronize_cache: timeout\n", 1395 ATANAME(ap, xa->at)); 1396 ccbh->status = CAM_CMD_TIMEOUT; 1397 break; 1398 default: 1399 kprintf("%s: synchronize_cache: unknown state %d\n", 1400 ATANAME(ap, xa->at), xa->state); 1401 ccbh->status = CAM_REQ_CMP_ERR; 1402 break; 1403 } 1404 sili_ata_put_xfer(xa); 1405 sili_os_unlock_port(ap); 1406 xpt_done(ccb); 1407 sili_os_lock_port(ap); 1408 } 1409 1410 /* 1411 * Completion function for ATA_PORT_T_DISK I/O 1412 */ 1413 static 1414 void 1415 sili_ata_complete_disk_rw(struct ata_xfer *xa) 1416 { 1417 union ccb *ccb = xa->atascsi_private; 1418 struct ccb_hdr *ccbh = &ccb->ccb_h; 1419 struct sili_port *ap = ccb->ccb_h.sim_priv.entries[0].ptr; 1420 1421 switch(xa->state) { 1422 case ATA_S_COMPLETE: 1423 ccbh->status = CAM_REQ_CMP; 1424 ccb->csio.scsi_status = SCSI_STATUS_OK; 1425 break; 1426 case ATA_S_ERROR: 1427 kprintf("%s: disk_rw: error\n", ATANAME(ap, xa->at)); 1428 ccbh->status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 1429 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 1430 sili_ata_dummy_sense(&ccb->csio.sense_data); 1431 break; 1432 case ATA_S_TIMEOUT: 1433 kprintf("%s: disk_rw: timeout\n", ATANAME(ap, xa->at)); 1434 ccbh->status = CAM_CMD_TIMEOUT; 1435 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 1436 sili_ata_dummy_sense(&ccb->csio.sense_data); 1437 break; 1438 default: 1439 kprintf("%s: disk_rw: unknown state %d\n", 1440 ATANAME(ap, xa->at), xa->state); 1441 ccbh->status = CAM_REQ_CMP_ERR; 1442 break; 1443 } 1444 ccb->csio.resid = xa->resid; 1445 sili_ata_put_xfer(xa); 1446 sili_os_unlock_port(ap); 1447 xpt_done(ccb); 1448 sili_os_lock_port(ap); 1449 } 1450 1451 /* 1452 * Completion function for ATA_PORT_T_ATAPI I/O 1453 * 1454 * Sense data is returned in the rfis. 1455 */ 1456 static 1457 void 1458 sili_atapi_complete_cmd(struct ata_xfer *xa) 1459 { 1460 union ccb *ccb = xa->atascsi_private; 1461 struct ccb_hdr *ccbh = &ccb->ccb_h; 1462 struct sili_port *ap = ccb->ccb_h.sim_priv.entries[0].ptr; 1463 scsi_cdb_t cdb; 1464 1465 cdb = (void *)((ccb->ccb_h.flags & CAM_CDB_POINTER) ? 1466 ccb->csio.cdb_io.cdb_ptr : ccb->csio.cdb_io.cdb_bytes); 1467 1468 switch(xa->state) { 1469 case ATA_S_COMPLETE: 1470 ccbh->status = CAM_REQ_CMP; 1471 ccb->csio.scsi_status = SCSI_STATUS_OK; 1472 break; 1473 case ATA_S_ERROR: 1474 ccbh->status = CAM_SCSI_STATUS_ERROR; 1475 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 1476 sili_ata_atapi_sense(xa->rfis, &ccb->csio.sense_data); 1477 break; 1478 case ATA_S_TIMEOUT: 1479 kprintf("%s: cmd %d: timeout\n", 1480 PORTNAME(ap), cdb->generic.opcode); 1481 ccbh->status = CAM_CMD_TIMEOUT; 1482 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 1483 sili_ata_dummy_sense(&ccb->csio.sense_data); 1484 break; 1485 default: 1486 kprintf("%s: cmd %d: unknown state %d\n", 1487 PORTNAME(ap), cdb->generic.opcode, xa->state); 1488 ccbh->status = CAM_REQ_CMP_ERR; 1489 break; 1490 } 1491 ccb->csio.resid = xa->resid; 1492 sili_ata_put_xfer(xa); 1493 sili_os_unlock_port(ap); 1494 xpt_done(ccb); 1495 sili_os_lock_port(ap); 1496 } 1497 1498 /* 1499 * Construct dummy sense data for errors on DISKs 1500 */ 1501 static 1502 void 1503 sili_ata_dummy_sense(struct scsi_sense_data *sense_data) 1504 { 1505 sense_data->error_code = SSD_ERRCODE_VALID | SSD_CURRENT_ERROR; 1506 sense_data->segment = 0; 1507 sense_data->flags = SSD_KEY_MEDIUM_ERROR; 1508 sense_data->info[0] = 0; 1509 sense_data->info[1] = 0; 1510 sense_data->info[2] = 0; 1511 sense_data->info[3] = 0; 1512 sense_data->extra_len = 0; 1513 } 1514 1515 /* 1516 * Construct atapi sense data for errors on ATAPI 1517 * 1518 * The ATAPI sense data is stored in the passed rfis and must be converted 1519 * to SCSI sense data. 1520 */ 1521 static 1522 void 1523 sili_ata_atapi_sense(struct ata_fis_d2h *rfis, 1524 struct scsi_sense_data *sense_data) 1525 { 1526 sense_data->error_code = SSD_ERRCODE_VALID | SSD_CURRENT_ERROR; 1527 sense_data->segment = 0; 1528 sense_data->flags = (rfis->error & 0xF0) >> 4; 1529 if (rfis->error & 0x04) 1530 sense_data->flags |= SSD_KEY_ILLEGAL_REQUEST; 1531 if (rfis->error & 0x02) 1532 sense_data->flags |= SSD_EOM; 1533 if (rfis->error & 0x01) 1534 sense_data->flags |= SSD_ILI; 1535 sense_data->info[0] = 0; 1536 sense_data->info[1] = 0; 1537 sense_data->info[2] = 0; 1538 sense_data->info[3] = 0; 1539 sense_data->extra_len = 0; 1540 } 1541